What is the specific process of building a natural gas filling station? 15

Please refer to my space.

1. Connect the gas pipeline: contact the property in the community, install the pipeline connected to the natural gas, so that the natural gas can be connected to the kitchen and other places that need to be used to the fire, it is best to choose a reliable gas company, in order to work more conveniently in the future.

2. Buy a battery: After the natural gas is connected, you still need to ignite the ignition step if you want to ignite the fire, and you need to use the battery to generate sparks to ignite the natural gas.

3. Inflation: After the preliminary work is done, you need to contact the gas company to send someone to connect the natural gas stove and pipeline, during which he will ask you to buy a ventilation line. You will also be given a weather gas card, which will be used to recharge, and you will also be given an insurance policy.

4. Ignition: After installation, first press the button and then slowly rotate counterclockwise, until you hear the sound of ignition, two or three times in a row you can have a fire, and then let go of your hand and continue to rotate counterclockwise to control the size of the flame.

5. Turn off the heat: After using it, you need to turn off the natural gas, first press the button again, and then rotate clockwise until the fire disappears. Then close the main valve.

The compressed natural gas in the trailer enters the compressor through the unloading pile, and then flows sequentially to the gas vending machine, high-pressure cylinder group, and medium-pressure cylinder group through the priority control system. First of all, the compressed natural gas in the trailer flows directly to the station gas storage medium and high pressure cylinder group, when the pressure is balanced, the compressor starts to pressurize the high and medium pressure cylinder group to 25MPa, when the car comes to refuel, the trailer bottle group first refuels the car, when the pressure and flow rate are reduced, it automatically switches to the medium and high pressure station with the cylinder group to take gas. If the pressure of the gas storage cylinder group for the station is low, the compressor starts and discharges the gas directly to the vehicle being refueled.

The CNG refueling station is mainly composed of 6 systems: natural gas pressure regulating and metering system, natural gas purification system, natural gas compression system, natural gas storage system, CNG refueling system, and control system. After the natural gas transported to the refueling station is measured under stable pressure, it enters the purification treatment device for purification treatment, pressurizes it with a compressor, and then sends it to the gas storage system through the sequential control panel after high-pressure dehydration, and finally the gas is metered and refueled by the refueling machine.

The desulphurization unit is used to desulfurize and purify the incoming natural gas, reduce the sulfur content to meet the gas requirements required by the filling station, and then send it to the compressor. The compressor is the key equipment in the system, and its cost directly affects the economy of the project, and its performance directly affects the operation of the whole station. The pre-treated low-pressure feed gas is compressed by a compressor to 25 MPa and then fed into a high-pressure dehydration unit.

The dehydration device is mainly a dryer, and depending on the process, the dryer can be arranged in front of the compressor (low-pressure dehydration) and after the compressor (high-pressure dewatering). The use of high-pressure dehydration requires less equipment, small dehydration dose, and low energy consumption for regeneration. The function of the sequential control panel is the same as that of the sequence control panel of the L-CNG refueling station.

The gas storage system is used to store natural gas at a pressure of 25 MPa in order to supply gas to the dispenser when needed.

The car is refueled with compressed natural gas or liquefied natural gas. Car refueling generally means that the car can be fueled by natural gas, that is, oil to gas. Refueling, like refueling, also needs to be refueled at a designated gas station.

Then the car is related information: compressed natural gas (CNG) refers to gaseous natural gas compressed to a pressure greater than or equal to 10MPa and not more than 25MPa, which is pressurized and stored in a gaseous state in a container. Liquefied natural gas (LNG), the main component of which is methane, is recognized as the cleanest fossil energy source on the planet.

In the last 10 to 20 minutes, you will have to look at the situation at the gas station, and some buses will ask passengers to get off at the bus stop near the gas station and wait for the gas station, and then go to refuel. Sometimes wait a few minutes, sometimes half an hour. He felt that the bus arrived at the terminal after the passengers got off.

How long does it take to deflate after unloading.

It takes about 15 minutes to deflate after unloading.

Natural gas refueling stations are further divided into compressed natural gas refueling stations (CNG refueling stations), liquefied natural gas refueling stations (LNG refueling stations) and compressed liquefied natural gas co-construction stations (L-CNG refueling stations). LNG refueling station**LNG refueling station is generally divided into four types: skid-mounted refueling station, standard refueling station, L-CNG refueling station, and mobile skid-mounted refueling station.

Generally, the pure LNG refueling station is composed of: LNG storage tank, pump skid and submersible pump, tank booster vaporizer, unloading vaporizer, EAG heater (the process flow is different, these three vaporizers will also have corresponding changes), liquid filling machine, etc. The so-called mobile refueling station refers to the use of a natural gas locomotive to connect two natural gas filled tails, and the front and rear of the locomotive can be separated, in addition to connecting a refueling compressor; The natural gas in the tail of the vehicle is compressed by a compressor and then fed to the transport vehicle.

When the natural gas loaded in one rear of the car is used up, it can be separated and connected to another tail filled with liquefied gas, and the empty tail can be connected to the front of the car to go to the nearby filling point to refuel, and it can be recycled. The advantages of this approach are low cost and the use of idle land resources. Of course, this kind of mobile refueling point can only be installed in a wide field where there is no residential area nearby, and the safety distance must meet the standard of fire protection facilities.

The content comes from the user: Yangchun Xuelang.

Documents required for the preliminary procedures of the gas station.

State-owned land use certificate

Construction Land Planning Permit".

Construction Project Planning Permit

Construction Permit for Building Works

1. Planning permit for construction land.

1. Application form for construction land planning permit (official seal of the unit);

2. Project approval; （***）

3. "Opinion on Site Selection of Construction Project" and attachments (copy);

4. Project contract (copy).

5. 3 1:500 or 1:1000 survey boundary maps (cyanotype, current topography, unified coordinates, unified elevation, including the location of various above-ground and underground pipelines and buildings) confirmed by the land and resources department and with surveying and mapping qualifications, and provide an electronic material at the same time;

6. Power of attorney of the legal person and a copy of the ID card of the person in charge of the "Construction Land Planning Permit" (the original is presented).

7. Construction projects that have obtained state-owned land use rights through land bidding and auction also need to provide:

1) Contract for the Transfer of State-owned Land Use Rights (copy);

2) Planning and design conditions and drawings (copies) in the Contract for the Transfer of State-owned Land Use Rights;

3) Certificate of legal person qualification (industrial and commercial business license or organization legal person certificate) (copy);

4) If it is a business real estate development and construction project, the qualification certificate of the development company (copy) shall also be provided.

Note: 1. The original copy must be presented; 2. Unless otherwise specified, the materials submitted for review are all one;

2. Planning permit for construction projects.

1. Application form for construction project planning permit (stamped with the seal of the applicant or the applicant unit, and stamped with land, civil air defense, meteorology, environmental protection, etc., project feasibility study and budget estimate approval.)

Please refer to the following diagram for the procedures required to establish a gas station: 3