Autonomous gas supply. Individual heating of a private house with liquefied gas. Advantages of autonomous gasification

Autonomous gas supply is great way not be afraid of power outages and always be able to provide yourself with heating, hot water and food. In addition, it will help out if it is not possible to connect to the gas main. It is also more profitable to use equipment that works with gas than to heat a house or cottage with electrical energy. True, such installations are not cheap, but in the end it pays off with interest.

Heating with liquefied gas for a country house: owner reviews

Heating a private house is a significant part of the cost of the total maintenance of housing. Therefore, many homeowners seek to minimize this item of expenditure as much as possible. How to do it?

If gas is the main source, then this can be done like this:

First, divide the total area of the premises by 10;
Further, the resulting value is divided by 2 and multiplied by the number of days in a month and the number of hours in a day (24);
It remains to divide the value by 11.2 (the amount of energy generated by a liter of gas) and get the fuel consumption of your home.

It will not be superfluous to know what the gas norms for heating a house are made up of. This is especially true in the absence of counters.

The rate of gas per person is calculated based on:

The amount of food prepared per month;
Water heating;
Heating of household and residential buildings;
The needs of keeping pets.

If the house has several floors, then the calculation is carried out for each tier separately. This also includes attics, basements and basements.

Reviews of those who have already tried autonomgaz:

Igor. I took the risk of ordering autonomous heating liquefied gas. And you know, I was very pleased! The house became very warm. And even if on the street hard frost, the temperature of the rooms does not fall below 23 degrees. At the same time, one tank was enough for the whole season. Very economical!
Maxim. I wanted to set up a heating system for my house, so I began to learn about gas tanks. For a long time I thought about what kind of equipment to give preference to - “our own” or imported. I took a risk to take what is cheaper, that is, domestic. So far I'm satisfied, but the system has not yet been fully tested. Hope you don't get disappointed.

Autonomous gasification: reviews and advantages of the system

Before you take the risk and purchase gas equipment, you should understand the nuances of this system, as well as its advantages and disadvantages.

Advantages of autonomous gasification:

Independence from other heat sources;
Profitability and payback;
Possibility to use environmentally friendly fuel;
Minimal maintenance - the equipment only needs refueling and a quarterly inspection for damage;
Reliability of the equipment and service life - with care and correct operation the system can last more than 40 years.

Of course, these are excellent characteristics, but does this system have disadvantages?

Disadvantages of gasification:

Water entering the gearbox can cause the entire system to shut down;
The need to monitor the fullness and integrity of the reservoir;
The high cost of equipment and its components.

In addition, the installation gas equipment should only be carried out by professionals! This also costs money, but when safety is at stake, there is no need to save.

Feedback from system users:

Marina. I read the reviews and decided to take a chance by taking a Russian gas tank. And you know, I didn't regret it. You just need to choose a proven company that has been on the market for a long time and everything will be in order. I live far from the city, communications are all autonomous and it is very convenient.
Kirill. I have had an autonomous gas system for 5 years. The house has been completely converted to gas and I additionally keep a diesel generator, but it has never been needed.

Efficient gas tank: equipment reviews

Autonomous gasification country house is impossible without the availability of appropriate equipment, which consists of: tanks with butane, valves and pressure-control devices, a gas pipeline.

A gas tank is a tank made of high-strength materials in which liquefied gas is stored under pressure. Can be installed vertically or horizontally.

Such containers can be produced in various sizes and shapes. You can put such equipment both on the surface of the earth and bury it in the ground. The choice of installation method depends on the climate of the region. If the temperature is too low in winter, it is better to place the container underground. The depth of the soil will allow you to maintain the desired temperature.

Benefits of using a gas tank:

Human safety;
Wide range of models;
Possibility to apply gas individually;
reliability of such equipment.

If a leak occurs, the gas from the gas tank will dissipate rather than accumulate, thus preventing the risk of a possible explosion.

The disadvantages of this container can only be attributed to the fact that, if installed incorrectly, it can lead to a fuel leak or a gas explosion inside the structure itself.

When the main gas pipeline is not available, you can use an alternative: autonomous gasification of a private house.

With autonomous gasification, gas is supplied to the house not through a centralized main gas pipeline, but is stored in its own reservoir. The simplest way autonomous gasification is familiar to everyone - these are red propane-butane cylinders, from which country houses work gas stoves. However, for something more, such cylinders are not suitable. If the gas will be used for heating, a more capacious container is needed - a gas tank.

For gasification of a private house in Russia, underground gas tanks are used. Gas enters the house through an underground gas pipeline through the basement input and then is sent to the consuming equipment: heating system, water heater, gas stove or electric generator.

propane butane

Liquefied gas for storage in private gas tanks is delivered by special gas tankers. If gas is used to heat the house, then the gas tank will have to be filled once or twice a year.

Autonomous gasification systems for private houses, as a rule, do not work with natural gas, but with a liquefied propane-butane mixture - the same one that is used to refuel gas cars.

The fact is that natural gas, which is supplied through main gas pipelines, is much more difficult to store than propane-butane. It is liquefied at -160°C under a pressure of 200 bar. Maintaining such conditions is not easy. In addition, liquefied natural gas is difficult to obtain, while liquefied petroleum gas (propane-butane) is available at almost every gas station.

The propane-butane mixture has its undeniable advantages: it is "higher in calories" natural gas. When burning propane-butane, three times more energy is released than when burning natural gas (28.4 kW / m 3 versus 9.4 kW / m 3). This makes him the most profitable fuel after natural gas.

There are also disadvantages: during frost, condensate forms in the tank, which prevents the normal supply of gas. To avoid this, gas tanks in Russia are installed at a depth where the temperature never drops below zero.

Special storage tank for liquefied gas (propane-butane) installed underground.

The compartment in which the equipment of the gas tank is located: a reducer, a filling valve, a level gauge, a pressure gauge, etc.

Modern underground gas pipelines are made of a polyethylene gas pipe. Above-ground and internal gas pipelines are made of steel.

It serves to bring the gas pipeline out of the ground and consists of a pipe, a valve and a bellows compensator.

A gas boiler

water heater

Gas stove

Radiator

gas holder

Gas holders AvtonomGaz, manufactured at the Polish plant Chemet, have a capacity of 4850 liters, 6400 liters or 9200 liters. Such volumes are enough to heat the house for several months.

In order for the gas tank to be installed at a sufficient depth, it must have either a high neck or high pipes that raise the shut-off equipment above ground level. In addition, the increased depth imposes special requirements on the strength of the underground reservoir and the reliability of the connection between it and the neck leading to the surface.

Another important factor is corrosion. If the gas tank is not sufficiently protected from it, frequent and costly repairs will be required. To prevent corrosion, an electrochemical protection system is connected to the gas tank. The material from which the tank is made is also important. Gas holders AvtonomGaz are made of selected evacuated fine-grained steel, which is not subject to corrosion. This makes them much more durable than competitors' products.

Armature compartment

Move the arrow to the photo to see the explanation.

A two-stage reducer with safety valves lowers the pressure from 1-16 bar inside the tank to 0.03 bar.

gas pipeline low pressure

Vapor phase valve

pressure gauge

filling valve

Liquid phase valve

Level gauge

Safety valve

Draining unevaporated residues from the condensate collector

In the upper part of the neck there is an armature compartment, inside of which there is a shut-off valve - equipment for controlling the gas flow. A pressure regulator (reducer), a filling valve, a level gauge and other devices are hidden under the cover.

In addition to equipment, there may be a sealed manhole, which is removed during the survey so that a specialist can penetrate into the tank. This allows the survey to be carried out without digging out the gas tank. Economy class tanks, devoid of a hatch, will be examined with an endoscope.

Pipeline

From the tank to the consumption equipment, gas is supplied through a low-pressure gas pipeline. Low-pressure gas pipelines are divided into external and internal: external are laid outside the premises, internal - inside. Modern underground gas pipelines are made of a polyethylene gas pipe, above-ground and internal can only be steel.

In Russian climatic conditions the underground gas pipeline is located below the freezing depth of the soil and is performed with a slope. At the same time, a butane evaporator is required at the lowest point of the gas pipeline, which prevents the condensed gas from entering the boiler. This is necessary in order to ensure the complete security of the system.

Plinth entry

Safety rules prohibit the underground entry of the gas pipeline into the house, therefore, the withdrawal of the gas pipeline from the ground is carried out using a special design - the basement entry.

The ground entry consists of steel pipe, a crane and a device that provides the ability to move the house (shrinkage or lifting from swelling of the soil) - a bellows compensator. The bellows design allows the expansion joint to stretch, compress, deform and flex while maintaining a tight seal.

At the request of the customer, a valve can be installed in a steel box at the base inlet to shut off the gas supply in the event of a leak in the house.

Remote control

Systems remote control, equipped with inexpensive universal GPS / GPRS modules, allow you to manage gas boilers using the Internet or coded SMS and voice messages from a cell phone.

High-quality, reliable and durable gas tanks AvtonomGaz will allow you to heat Vacation home, cottage or cottage with gas in cases where it is impossible to connect to the main gas pipeline.

Why autonomous gasification is needed

It's hard to get by without gas. It is the most economical and convenient way. Alas, there are many places in the Moscow region where natural gas is available. The best alternative to natural gas is liquefied propane-butane gas, which does not need a centralized gas pipeline network.

The AvtonomGaz company will install an underground gas tank on the site near a country house, cottage or summer house - the so-called gas tank. This process is called "" and takes only a few hours.

The gas tank is located underground at a distance of five to ten meters from the house. It does not take up space on the site - if desired, you can plant it above it herbaceous plants and even shrubs.

Inside fits several thousand liters of propane-butane. This volume is enough to heat the house for several months. When the gas runs out, the gas carrier AvtonomGaz. During refueling, a specialist will inspect the gas tank free of charge and carry out the necessary maintenance.

Why gas tanks AvtonomGas are better

Gas holders AvtonomGas are different the highest quality manufacturing, a unique design, developed taking into account Russian conditions and extremely low maintenance costs.

The manufacturer of gas tanks AvtonomGaz, the Polish plant Chemet, is the only company in the European Union approved for the manufacture of vessels for hazardous substances under high pressure. No other manufacturer in Russia or Europe can boast of such experience and such high quality requirements.

Material of gas holders AutonomGas -. It is additionally protected by shockproof. As a result, the wear period of the tank is extended by 150 years, and the protector lasts not for a year, like in Russian gas tanks, and not five years, like in other gas tanks from Europe, but at least fifteen years.

Other elements of the autonomous gasification system are selected no less carefully. The fittings of the gas tank are equipped with high-speed valves to protect against vandalism and a fuse that prevents the tank from overflowing. The condensate collector, which is supplied with each AvtonomGaz gas tank, prevents the gas supply from being cut off in severe frost and the ingress of liquid butane into the boiler, and the gas pipeline, made of a special grade of polyethylene, withstands the effects of liquefied gas five times longer than usual.

This attention to detail makes AvtonomGaz gas tanks more durable, more reliable and safer than gas tanks from other companies. And, which is provided by AvtonomGaz, allows our customers to save tens of thousands of rubles a year.

Autonomous gasification for Russia

Gas holders AvtonomGaz are designed for. Neither winter frosts nor high level flood or ground water do not cause interruptions in gas supply. You can't say the same about the tanks of other companies from Europe, such as Czech VPS or Deltagaz.

At negative air temperatures, butane stops evaporating and condenses on the walls of the tank and gas pipeline, blocking the gas supply. To avoid this, gas tanks are placed at such a depth where even in severe frost the temperature does not fall below zero.

Another detail that must be taken into account when developing a gas tank: no matter how deep it is, its fittings must remain above the ground. This is necessary so that the gearbox is not flooded with ground or melt water.

In Russia, the freezing depth is at least 60 cm from the upper generatrix of the reservoir. Gas holders AvtonomGaz are designed for exactly this depth. To relieve soil stress, their body is equipped with reinforcing rings, and the reinforcement is raised above the ground on a neck or tubes 65 cm high.

Other European gas tanks do not have a sufficiently high neck or reinforcing rings. They are either placed at an insufficient depth, which is fraught with interruptions in the gas supply, or they are being handicrafted - and this has an extremely negative effect on reliability and safety.

Autonomous gas supply AvtonomGas

Autonomous gas supply of private houses, carried out by AvtonomGaz, is full complex equipment, works and services, including the following operations:

Supply of an underground gas tank for storing liquefied gas with a volume of 2.7-20 m 3, manufactured and tested at the Chemet plant (Poland), which was audited by Rostekhnadzor. The numbered gas tank of the autonomous gas supply system has a passport that reflects all stages of its manufacture, a GOST-R certificate and a permit from Rostekhnadzor for use;
Inspection by a specialist of the site for the possibility of placing an underground gas tank and carrying out work on autonomous gas supply;
Assessment by a specialist of geodetic and hydrogeological information about the gasified area, where the installation of an autonomous gas supply system is expected;
Development of the "Autonomous gas supply" section in the general design of the house (if the gasified house is not more than 3 floors and is intended for one family, then according to Article 48, part 3 of the Town Planning Code of the Russian Federation, the general design for such a house is not developed);
Digging a pit for a gas tank and trenches for a gas pipeline to the depth of soil freezing, removal of excavated soil, backfilling of a sand cushion (carried out by the customer or partner AvtonomGaz);
Installing the gas tank base plate;
Installing the gas tank and fastening the legs of the gas tank to the plate with austenitic steel fasteners;
Installation of a system of sacrificial protection and grounding of a gas tank;
Installation of an underground polymeric gas pipeline with the installation of a signal tape, a butane vaporizer and an all-welded steel base entry with a bellows compensator;
Testing the gas pipeline of an autonomous gas supply under pressure, monitoring the correct installation of the autonomous gas supply system and the integrity of the gas tank cover;
Backfilling of the installed gas tank, gas pipeline and system electrochemical protection sand (carried out by the customer);
Connecting the gas pipeline of the autonomous gas supply system, purging it with inert gas and adjusting the gas equipment of the gas tank on inert gas;
Regular inspections of the autonomous gas supply system during maintenance;
Filling a gas tank with liquefied gas, launching an autonomous gas supply system;
Regular monitoring of the operability of a filled gas tank and fittings of an autonomous gas supply system by a specialist;
Regular scheduled technical diagnostics of the gas tank and other equipment of the autonomous gas supply system, pumping out unevaporated residues from the gas tank;
Regular refueling of the gas tank with liquefied gas as needed.

Why all more people chooses autonomous gas supply of a private house?

Consider all the pros and cons of such a system and tell you how it works.

AT last years more and more residents of megacities and even just large cities are changing their usual apartments in the center to private country houses. No dust, noise, fresh air and closeness to nature - these are the main factors that make us move out of the city. But such a remoteness from the benefits of civilization has one significant drawback - the complete absence of the usual communications. If you can still do without water supply and sewerage, replacing them with a well and a toilet with a septic tank, then with electricity and gas supply everything is much more complicated.
There are two main solutions to the problem of generating electricity and heating a private house: a wind generator or an autonomous gas supply complex. Due to the unreasonably high cost and insufficient power of the wind generator, more and more people choose the autonomous gas supply of a private house.

Cylinders with gas or autonomous gasification?

However, we forgot to mention another "gas" way to do without electricity - these are gas cylinders. If you use gas only for cooking in a small family, this option is quite suitable.
In this case, you will have to buy two 50- or 80-liter bottles of liquefied gas: one is attached to the gas stove, and the second serves as a spare. Next, you need to conclude a service agreement with the gas service and, as the cylinders are empty, change them for new ones - a special truck brings full cylinders from the gas filling station. As practice shows, the contents of a 50-liter cylinder in a family of 2-3 people are enough for a couple of months.
The option is good, but not suitable for everyone. If your home is very far from settlements, it may be that the delivery of cylinders will cost you more than the cost of the LPG cylinder itself. In addition, you may need gas not only for cooking, but also for heating your home, for generating electricity. In this case, there is only one solution - an autonomous gas supply system.

General information about the autonomous gas supply system

The autonomous gas supply system consists of a cylindrical tank for liquefied gas (gas holder), a high-pressure gas pipeline, an evaporator (brings the gas pressure in the gas pipeline to atmospheric pressure), and a low-pressure gas pipeline (through which vaporous gas is supplied to devices that consume it).
The gas holder is made of 10 mm cold-rolled steel, designed for a pressure of 1.6 MPa, thermally insulated, equipped with anti-corrosion protection and lightning protection. Outwardly, it looks like railway tank car and has a unique serial number.
A pipeline with outlets to consumption points is connected to the gas tank through the distribution head: gas stove, boiler, etc. Liquefied hydrocarbon gas is pumped into the gas tank from a special tank truck, which gradually evaporates and enters the gas appliances. Tanks with a volume of 2,700 m3 to 20,000 m3 are produced at gas tank manufacturing plants, the smallest is designed for a house with an area of \u200b\u200bno more than 200 m2, the largest is for buildings with an area of more than 1000 m2. When using gas for heating, water heating and cooking for a family of 4-5 people, it is only necessary to replenish gas supplies in the gas tank 2-3 times a year.

Advantages of an autonomous gas supply system

Autonomy. The owner of the system himself has the right to decide when, for what purposes and in what volumes the gas will be used. Residents of such a house are not afraid of turning off gas at the most crucial moment, because autonomous gas supply does not depend in any way on the state of main, inter-settlement and distribution gas pipelines.
. saving. From this point of view, the autonomous gas supply system is second only to a gas boiler connected to a conventional gas distribution system. Funds invested in organizing an autonomous gas supply system usually pay off in 3-4 years.
. practicality and long term services. The minimum life of the autonomous gas supply system is 20-30 years (provided that the installation is carried out professionally). Spontaneous leaks and ignitions of gas are excluded completely.
. environmental friendliness. The autonomous gas supply system does not produce combustion waste and odor, and does not contaminate the soil when spilled.
. solve all problems in one way. The autonomous gas supply system when installing a gas generator allows you to fully cover the needs for heating, hot water, cooking and electricity supply.

Elements of the equipment of the gas tank:
. relief (safety) valve, equipped with a pressure gauge and independently lowering the pressure in the tank when it critically increases
. a safety shut-off valve that stops the flow of gas in the vapor state (vapor phase) at a dangerously high pressure, its breakdown, or a pressure drop in the system caused by damage to the gas pipeline
. level gauge showing the operator of the gas carrier the level of critical filling of the tank (more than 85% of the internal volume of the gas tank)
. filling level sensor (signaling device) that reports the critical filling of the tank and automatically stops the supply of LPG to the tank from the gas truck
. vehicle earthing device, grounding LPG delivery vehicle to avoid sparks
. gas pressure reducer.

Operational characteristics of the autonomous gas supply system

Gas holders can be vertical and horizontal (they are cheaper). In terms of the “evaporation mirror” area, horizontal gas tanks are more productive, but vertical ones are more frost-resistant: they can be immersed to a greater depth and therefore are less affected by low temperatures. In addition, vertical gas tanks do not need an evaporator, because it outer surface well extracts heat from the earth.
Autonomous gas supply systems can be either imported or domestic production. But it must be borne in mind that Russian manufacturers produce only horizontal gas holders. European manufacturers sell both horizontal and vertical systems, but vertical on Russian market presented much less.
As we noted above, each gas tank must be protected against corrosion, this is a prerequisite for any manufacturer. Anti-corrosion coatings can be bituminous or glass bitumen (thickness up to 4 mm), polyurethane (1.5 mm), epoxy (0.8 mm) or consist of an isoplast layer (8 mm). Effective way corrosion protection can also be galvanic protection, the cost of which starts from 15,000 rubles. It consists of a reference electrode (Cu/CuSO4) connected to 2-3 magnesium alloy anodes placed in the ground near the gas tank. Magnesium anodes are oxidized, restoring the iron of the container and extending its service life for decades. During this reaction, the anodes are gradually destroyed - one set of them will last about five years.
Imported gas tanks are necessarily equipped with a reducing head or neck. There are usually no such kits in domestic kits, and they have to be purchased separately (the cost is from 55,000 rubles). The reducing head protects the equipment for control and management of the gas tank from the penetration of moisture and dust.
From the gas tank, liquefied gas is sent through a high-pressure gas pipeline to an evaporator - a device that increases the amount of the evaporated gas mixture in case of insufficient natural evaporation. The evaporative plant needs a heat carrier - hot water or water vapor electric heater. If power heating boiler or the total power of several boilers consuming gas from one gas tank does not exceed 100 kW, then there is no need for an evaporation plant and natural evaporation will be sufficient.
After the evaporator, liquefied gas in the vapor state enters the consumer devices through steel or polyethylene pipes with a diameter of 23 to 63 mm. Pipes made of low pressure polyethylene are quite suitable - they easily withstand low gas pressure, do not rot and are not damaged when the soil in which they are laid moves. Please note that when installing gas pipes, only a welded connection is allowed. Near the entry point of the gas pipeline into the building, a basement unit is created, equipped with a flange connection - from it the entrance to the house is made (only a steel pipe is used here).

How to choose the right gas tank

When choosing a gas tank, be sure to calculate the required volume of gas consumption. You should not buy a container less than 2.7 m3, even if your house is small and you visit it only from time to time. The reason is simple: gas companies it is not profitable to deliver small volumes of gas over long distances, so they will either refuse to supply gas to you or install very high price. Pay attention to the power of the consuming equipment and calculate the required volume of the gas tank based on this data. For example, a 10 kW heating boiler consumes 1.44 liters of liquefied gas per hour, which means that, subject to 10 hours of daily operation, the gas supply in a 2.7 m3 tank will last more than five months. With a boiler power of 15 kW, it is advisable to choose a 4.5 m3 gas tank, at 20 kW - 6.4 m3, at 30 kW - 10 m3.
Considering that it is forbidden to fill the gas tank to more than 85% of the internal volume, when correct selection gas tank it will need to be filled only twice a year.

Installation of an autonomous gas supply system

Proper installation of an autonomous gas supply system is not an easy task and directly affects the safety of your family and friends. Therefore, when choosing a company that installs an autonomous gas supply system, be sure to check the professionalism of the employees, read reviews about the organization. Make a choice in favor of a company that has been on the market for a long time and uses only certified equipment.

Before installing an autonomous gas supply system, the installation company will definitely ask you for a gasification project developed specifically for this facility and consisting of a general plan, an external gas pipeline plan, characteristics of a tank installation, lightning protection, grounding and chemical protection solutions, characteristics of a condensate collector and an evaporation plant (if necessary ).
When installing an autonomous gas supply system, be sure to comply with the requirements fire safety. The distance from the gas tank to residential buildings should be at least 10 m, to a reservoir (well, well) - at least 15 m, to a septic tank, garage, branchy tree - 5 m, to a fence - 2 m, to power lines - at least half the length of their supports.
Consider access roads for a gas truck - this truck is not particularly nimble.
When the design work is completed and all other issues are agreed, you can proceed with the installation of an autonomous gas supply system. To begin with, a foundation pit is dug to a depth below the freezing point of the soil - the distance from the top of the gas tank to the surface of the earth must be at least 1500 mm. Trenches are being laid for gas pipes - below the freezing point, with a depth of 1900 mm near the gas tank and with a decrease in the depth of the trench to 1500 mm at the base of the building (the entry point of the gas pipeline into the house). These preparatory excavation can be performed both by the installation organization and by the customer.
Further, a concrete slab is laid in the pit - it will serve as the basis for the gas tank capacity and will not allow it to move when the soil moves. The container is installed on a concrete slab, a layer of reinforced acid-alkali-resistant rubber is laid between it and the slab, fixed on a concrete base with anchors made of of stainless steel through the fastening of the legs or through the steel strip-hoops. When the gas tank is installed, experts check it for technical suitability. Then the lightning rod of the ground loop is installed, its resistance is measured. If necessary, an evaporation plant is installed.
A condensate collector is installed at the lower point of the gas pipeline - unevaporated fractions of propane-butane will flow into it. Due to the natural heat of the soil, they warm up and again enter the gas pipeline. Then sand is poured into the bottom of the trench and the gas pipeline is laid (flexible polyethylene pipe design diameter) to the point of entry into the house.
A gas pipeline is being introduced from the basement to the gas consumption points in the house, automatic sensors gas control. Upon completion of these works, air is pumped into the system at a pressure of 5 kg / cm2 and a test test of the autonomous gas supply system is carried out.
If a test work were successful, a day later the capacity of the gas tank and the gas pipeline are covered with sand, and then with soil to the ground level. The injected air is removed by flushing the system with nitrogen. Upon completion of these works, it is possible to produce the first injection of liquefied gas - but always in the presence of specialists from the installation organization.

Maintenance of autonomous gas supply system

The advantage of an autonomous gas supply system is that it does not need to be controlled by the user - the installed sensors will cope with emergency situations on their own. The consumer only needs to follow the rules for using the autonomous gas supply system (representatives will tell about them assembly organization) and once every 10 years contact the installation specialists or the manufacturer of the gas tank to check the equipment and the integrity of the gas tank.

What to do if there is a house, but the gas main is not connected to it? The answer is simple - we need autonomous gasification of a private house, which provides the supply of blue fuel to a gas stove and heating boilers. This is not an easy task, it requires careful design, strict adherence to building codes and special knowledge.

But still it is worth considering this option of gasification in more detail, since it has many advantages. We will tell you how the system works, which work units are included in the autonomous complex.

We will describe the specifics of the operation of a gas tank and balloon gas supply, as well as designate the rules for designing, designing and installing a local gas pipeline.

A gas stove connected to a liquefied gas cylinder is a common occurrence. By the same principle, it is possible to bring blue fuel to a gas boiler in order to provide heating and hot water supply to the whole house. You just need a larger container or even several tanks of liquefied gas.

The fuel in such systems is an analogue of natural gas, which consists of a mixture of butane and propane. This mixture is called LPG - liquefied petroleum gas.

To organize an autonomous or alternative gas supply system at home, you need to connect to single system the following elements:

LPG storage tank - one or more;
evaporator (pressure regulator) for gas;
system controls;
devices that run on liquefied gas: stove, column, boiler, etc.

Special gas appliances for autonomous gas supply of a country house are not needed. If the boiler or column can be operated from the main gas network, then a cylinder or gas tank can be connected to it. This is very convenient if in the future it is planned to bring a centralized gas main to the house, you do not have to change the equipment.

Autonomous gas supply to a private house is usually carried out using a special container - a gas tank, from which liquefied gas is distributed through pipes (+)

The main reason why owners of private houses refuse electric and solid fuel in favor of gas units, is relatively low operating costs.

Gas, including liquefied gas, is cheaper than electricity or coal. The difference even covers installation costs. autonomous system gas supply.

But if people live in a house or cottage all year round, be sure to install an underground tank.

Gas tanks designed for installation underground are more in demand than above-ground models, as they provide a stable temperature for storing liquefied gas.

Although it is easier to install a ground gas tank, there are more problems with its operation. Due to the influence of high and unstable temperatures, more stringent safety requirements are imposed on such devices. Above ground installations are also typically more expensive than their underground counterparts.

If it becomes necessary to use a ground model in winter time, i.e. at low temperatures you will need to use a vaporizer. This is electrical appliance, which provides safe heating of the gas container.

As a result, LPG quickly turns into gaseous state and enters the system, providing sufficient pressure.

Underground gas tanks can reach volumes of 50 cubic meters, but a smaller tank is usually needed for a private house.

Gas holders designed for installation underground are considered more reliable and safe. However, their installation will require more time, cost and effort.

It's connected with large-scale works. Installation above ground freezing is not allowed, and in many regions this figure is 1.5 m or even more.

The contents of the reservoir located inside the soil are almost completely at a temperature of 5-8°C. A special evaporator is not needed for this model.

For a specific site and project, a gas tank is selected in accordance with the technical conditions developed for an autonomous gas supply system. Usually, the organization tasked with the project is in charge of buying this device, using discounts that manufacturers provide to such customers.

The gas tank control system is installed on its top cover. The pressure gauge allows you to control the pressure inside the tank, which should not exceed critical limits (+)

Independent searches and purchase of a gas tank usually do not give the site owner the opportunity to save money, but increase the risk of acquiring a low-quality or unsuitable device.

On our site there is a series of articles on the selection and installation of gas tanks.

In addition to gas holders, liquefied gas cylinders can also be used for autonomous gas supply. One such capacity is usually not enough, several are combined into a common network.

Features of bottled gas supply

This option is usually used only for small summer cottages with modest gas consumption. Several are installed in a separate room. It is not recommended to allocate a room in a residential building for these purposes.

It is better to build a separate storage room for storing cylinders, although this room is allowed to adjoin the house.

For connection gas cylinders a set of reducers and pressure gauges is used in a single network. As needed empty cylinders can be replaced with filled

Here you should make a separate entrance, and not a door leading from the house. The area of the room should exceed the size of the cylinders that will be installed there, eight times.

The inner surface of the room must be covered with materials that are resistant to fire. Forced ventilation is required.

Autonomous gas supply using a set of gas cylinders is preferable to use for small summer cottage so you don't have to worry about filling them out too often (+)

Sometimes it is allowed to store cylinders not in a separate room, but in a large metal box outside the house. It is impossible to heat the place of storage of gas cylinders, any heating appliances and, of course, the use of open flames.

If the room is ready, you must perform the following operations:

Install cylinders along one of the walls.
Lay gas pipes from the place of storage of cylinders to devices-consumers of liquefied gas.
Assemble the system from gearboxes and pressure gauges for parallel connection cylinders.
Connect cylinders and appliances to the highway.
To inspect finished system in the presence of employees of the regional gas facilities.
Obtain official permits documents for the operation of the balloon gas system.

Cylinders are installed on special pallets, while they need to be given strictly vertical position. Each container contains about 50 liters of gas, based on this standard, their total amount is calculated. Such a system will cost less than a full-fledged gas supply with a gas tank, but you will have to charge the cylinders quite often.

Design and documentation

A “personal” gas system must be as reliable and safe as a centralized main. Carelessness in these matters is unacceptable, since even a small gas leak can cause huge problems up to and even lead to death.

If the owner of the house does not have special knowledge, then it is necessary to entrust a specialist with a license.

The installation location of a ground or underground gas tank is determined not only by convenience, but also by the distance for individual objects on the site (+)

Rather, this is done by entire design organizations that have the right to design and carry out work on the gasification of residential facilities.

It could be like private company and a specialized division gas service district, region, etc. Private traders charge a little more for work than state specialists, but they will also take care of the design.

When working with regional gas, the owner of the house will have to deal with the design on his own, but you can save a little.

When drawing up a project, you will not only have to draw up a couple of statements, but also attach a number of documents to them:

owner's passport;
certificate of ownership of the land;
site plan;
characteristics of the heating system, etc.

First, experts develop specifications for gasification of buildings, which take into account fire safety requirements. Then studies are carried out on the ground, and selected taking into account the standards.

The gas tank must be located at a distance of:

at least 10 m from residential buildings;
at least 15 m from sources drinking water and other bodies of water;
at least 5 m from trees and outbuildings;
at least 2 m from fences.

In addition, it is necessary to take into account the presence of power lines near the installation site of the gas tank. Minimum distance to such structures should be half the height of the support. Another important point- the availability of convenient access roads for a car with a liquefied gas tank to fill the gas tank.

At the design stage, the features of the site are also evaluated: the corrosivity of the soil, the level of stray currents, etc.

Based on these data, a decision will be made about the features of the gas tank, for example, whether it needs additional galvanic protection, which will not affect the price of the device for the better.

Ground models of gas tanks are usually used only in summer period. More than high requirements security than for underground counterparts

Thus, the technical conditions for the gasification of the facility are determined. With their help, specialists will draw up a project that includes a number of documents: characteristics of a gas tank, evaporator, condenser, site plan, gas pipeline system layout, recommendations for grounding, chemical protection, lightning protection, etc.

These documents must be coordinated with the fire inspectorate, gas supply services, electricians, architects, environmentalists and other specialists of local departments. The result of the registration will be obtaining a building permit.

If the site owner wants to reduce the cost of installing an autonomous gas pipeline, he can dig a pit for a gas tank on his own. But this must be done in strict accordance with the project. It is better to entrust all other work to specialists so that everything is done in full compliance with safety requirements.

When installing a self-contained gas system, use outer gasket pipes, only permanent connections are used to connect individual sections

All gas pipes should only be laid openly, they must not be hidden under a screed, false panels or other decorative elements. Carefully consider the layout of pipes for liquefied gas.

It is not allowed to conduct such communications in transit through living quarters, through a kitchen or other utility rooms in which devices that operate on liquefied gas are already installed (or will be installed).

The base for the gas tank must be even and solid, it is suitable for sand cushion on which they put concrete slab suitable sizes

Another categorical prohibition related to installation gas pipes- detachable connections. Of course, connectors are needed at the beginning of the network, i.e. where the network is connected to cylinders or a gas tank. And at the end, when connecting the pipe to the boiler or column, it is also necessary to put a connector.

But along the entire length of the autonomous gas pipeline, the connections must be made only one-piece. The part of the gas pipeline that is laid outside needs to be taken care of additionally.

All outdoor network should be carefully insulated using special materials that are resistant to fire. In addition, it is necessary to ensure the removal of condensate, this will reduce the likelihood of pipe corrosion.

To reduce the cost of installing an autonomous gas pipeline, you can dig a pit for an underground gas tank yourself, but you must follow the project documentation

The gas boiler must be installed in a separate room - you will need it. Its area must be at least 15 cubic meters. m. In the room it is necessary to make a window, the opening area of \u200b\u200bwhich is at least half a cubic meter.

Such a hole in outer wall will create an exit for the blast wave in the event of an accident. If the gas explodes in a room with blank walls, the entire building can be seriously damaged.

At the entrance to the boiler room, you should put a door that opens outward. Another point that should not be neglected is the ventilation of the boiler room. tributary fresh air must be constant to ensure combustion of the gas.

Sufficiently good air exchange must be ensured so that the gas does not concentrate in the room with open fire in case of accidental leakage.

The gas boiler should be installed in a separate room with a window and a door that opens outwards. Finishing is carried out using fire-resistant materials

Ventilation will also prevent poisoning by combustion products if there are problems with the chimney. If it is not possible to allocate for the boiler separate room, it is allowed to install some models in the basement or on the basement floor.

But in this case, it is imperative to install a system in the room with the boiler to control the level of hazardous gases in the air.

Installation work on autonomous gasification by a gas tank usually takes two or three days. But after their completion, a number of documents should be drawn up and some coordination should be carried out. The tightness test of the finished system should be carried out under the supervision of specialists from the regional gas organization and Rostekhnadzor.

Before performing backfill underground gas tank with sand, it is necessary to wait after its installation for about two to three weeks

After checking, the gas tank is covered with sand, after which you need to wait about three weeks before filling the tank with liquefied gas for the first time. Completion of work must be formalized by an official act of acceptance and transfer. At the same time, they usually conclude an agreement on after-sales service.

Sometimes it is more convenient to invite different contractors to install the external and internal gas pipeline. In this case, experts recommend delimiting responsibility between the performers and formalizing this moment as a separate act. It also does not hurt to take care of civil liability insurance.

Conclusions and useful video on the topic

You can learn more about the features of installing a gas tank in this video:

Here is a description of the procedure for autonomous gasification of a private house:

Setting up your own gas supply system on the site is a troublesome and costly task. However, use own gas very convenient, refueling can be done only a couple of times a year.

In addition, such a system is cheaper than endless electricity bills, and solid or liquid fuel loses to a gas boiler in economic terms.

Thinking about arranging autonomous gasification? Or have already installed a gas tank on suburban area? Please share with readers your experience of operating such a plant, tell us how justified the financial costs are. You can leave comments in the block below.

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