Integrated valve body of liquefied natural gas cylinder and control method thereof
A liquefied natural gas, integrated valve body technology, applied in container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve the problem of unfavorable low temperature gas cylinder insulation, increase of leakage points at welding, manufacturing and maintenance difficulties, etc. problem, to achieve the effect of compact and beautiful structure, reducing leakage points and low cost
Inactive Publication Date: 2017-09-22
江南工业集团有限公司
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Problems solved by technology
The main defect of this connection method in actual use is that it is difficult to manufacture and maintain, especially once the valve is damaged, the stainless steel pipe must be cut and welded to repair or replace the valve. The steel pipe will increase the heat transfer, which is not conducive to the insulation of the cryogenic gas cylinder, and increases the leakage point of the weld
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[0030] An integrated valve body of a liquefied natural gas cylinder, which is a short cylindrical porous cavity as a whole, which can provide a common valve body for the installation of some valves on the liquefied natural gas cylinder for automobiles. The surface of the valve body has multiple threads Hole and light hole, there are 5 channels with inherent logical relationship inside. Using the lightweight design concept, multiple control valves share one valve body, which saves the valve body of a single valve, reduces the connecting pipes and welding leakage points from the distribution head to the valve, and makes the structure more compact, beautiful and reliable.
[0031] The valve body is a porous cavity similar to a short cylinder. Under the premise of satisfying performance and aesthetics, the lightweight design concept is adopted to remove redundant materials as much as possible. Its surface has 19 connection ports that can be connected to the outside, and has 5 flui...
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The invention discloses an integrated valve body of a liquefied natural gas cylinder and a control method thereof. The valve body has a main body, and the main body is provided with a liquid-filled internal inlet, an air inlet, a liquid inlet, a liquid shut-off valve interface, an economic throttle valve interface, a liquid level gauge interface, an air return shut-off valve interface, and a safety valve. Interface, overflow valve interface, liquid filling external inlet, return air interface; the gas inlet, economic throttle valve interface, liquid cut-off valve interface, and overflow valve interface are connected to form an air channel; the liquid inlet, The liquid cut-off valve interface and the overflow valve interface are connected to form a liquid channel; the gas inlet, the return air stop valve interface, and the return air interface are connected to form a return air channel; the liquid-filled external inlet and the liquid-filled internal inlet are connected to form a A liquid-filled channel; the gas inlet and the safety valve interface are connected to form a pressure measurement channel. The invention has the advantages of compact structure, more reliable safety and lower cost.
Description
technical field [0001] The invention relates to an integrated valve body of a liquefied natural gas cylinder and a control method thereof, which is especially suitable for a liquefied natural gas cylinder for automobiles with a conversion joint, and belongs to the technical field of liquefied natural gas applications. Background technique [0002] Similar to the liquid filling and liquid supply of liquefied natural gas cylinders for automobiles, it must be realized through various control valves, and the entire system needs more than 10 valves to control. [0003] At present, liquefied natural gas cylinder manufacturers at home and abroad use the connection method of "gas cylinder-distribution head-stainless steel pipe-control valve-stainless steel pipe-connector-external pipeline" in the installation of their control valves, that is, in the distribution Multiple stainless steel pipes are welded at multiple interfaces of the head, and then the stainless steel pipes are welde...
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IPC IPC(8): F17C13/04
Inventor 王健李崇华石钊李泽平谢治杨巾莹易文
Owner 江南工业集团有限公司