LNG filling station is a filling station for supplying LNG to LNG. It is divided into four types and is generally divided into: skid-mounted gas station, standard gas station, L-CNG After the gas station and the mobile armored gas station, the natural gas is purified (removing CO2, sulfide, heavy hydrocarbons, water and other impurities), and then deep-cooled to -162 °C under normal pressure, from a gaseous state to a liquid state. Known as liquefied natural gas, the volume of liquefied natural gas is about 1/620 of the volume of natural gas of the same mass, and the weight is about 45% of the same volume of water.
A block type gas pressure regulating metering device consists of a rectangular block, a regulating manifold, a control valve, a metering tube, a flow meter, a regulating valve, a regulating tube, a filter, an outlet pipe, and a feed. The utility model comprises a gas collecting pipe, an air inlet, an air outlet pipe, a sewage pipe and a safety venting valve, wherein the air inlet pipe, the air outlet pipe and the regulating water pipe are arranged in parallel on the rectangular block and transverse to the rectangular block Parallel, the regulating manifold is in front, the outlet manifold is in the middle, the inlet manifold is behind, and two parallel measuring tubes are horizontally arranged between the inlet manifold and the adjusting tube, respectively, on each measuring tube. Control valves, filters, pressure gauges, flow meters and control valves are available.
The air enters the upper part of the throat through the air filter, forming a high-speed airflow at the throat, creating a negative pressure zone; the gasoline in the float chamber is under the pressure difference between the float chamber and the throat, and the volume is measured. It is ejected from the nozzle and is atomized by a high-speed air stream to form a mixture. The combustible mixture formation process begins in the vaporizer. During the intake and compression process, the oil droplets continue to evaporate and continue to mix with the air until the end of the compression stroke and at the beginning of the ignition; however, the degree of atomization of the gasoline at the vaporizer throat is formed. A homogeneous and good combustible mixture plays a key role. As the engine operating conditions change, the carburetor is required to change the concentration and amount of the combustible mixture accordingly.
Points and characteristics (1) The main component of LNG is: methane (CH4). (2) Liquefied natural gas is characterized by: colorless, odorless, environmentally friendly and non-corrosive (3) The upper limit of the explosion of natural gas is: 5% - 15%, which is less prone to explosion than gasoline.
Pressure regulating equipment maintenance (1) Maintenance 1. Clean the filter element of the filter regularly. Generally, it should be cleaned once a month, and it should be replaced once every three months. The specific time will increase or decrease according to the customer's temperament. 2. When using the power supply or the open flame during maintenance work, first confirm that there is no gas leakage or gas retention around the gas, and the gas in the decompression station and piping should be replaced with nitrogen. 3. When the piping needs to be removed, the internal gas should be emptied in advance to ensure that the display of any pressure gauge is zero.
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lng gas station should know Know how: LNG basics 1, components and characteristics (1) The main component of LNG is: methane (CH4). (2) The characteristics of liquefied natural gas are: colorless, odorless, non-corrosive (3) The upper limit of the explosion of natural gas is: 5% - 15%, which is less prone to explosion than gasoline. (4) Compressed natural gas: English abbreviation CNG. Refers to the compressed fuel whose main component is used. The current operating pressure of the vehicle gas storage tank is generally 20Mpa. (5) Liquefied natural gas: When natural gas is cooled to about -162 ° C under atmospheric pressure, natural gas is converted from a gaseous state to a liquid state, called liquefied natural gas (Liquefied Natural Gas, abbreviated as lng gas station)
Designed for accurate dosing The liquid adding machine is made of German technology and technology, with reasonable design, excellent production and long service life. Power is more than ten watts, saving electricity and durability. The Anshi meter and the liquid storage tank are better understood. The Anshi meter can guarantee the quality on the basis of correct selection. It will not be repeated here. The function and characteristics of the liquid pump are introduced below.