Unpowered natural gas trailer assembly provided with cyclic and alternate control system and control method
A control method and technology of compressing natural gas, applied in the container discharge method, container filling method, equipment loaded into pressure vessels, etc., can solve the problems of low filling efficiency, increase the number of combinations, slow speed, etc., and achieve improved filling Efficiency, increasing the number of combinations, and increasing the gas filling speed
Active Publication Date: 2018-01-23
SHIJIAZHUANG ENRIC GAS EQUIP
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Problems solved by technology
[0015] In order to solve the technical problem of low filling efficiency and slow speed of the current unpowered gas filling station, the present invention provides an unpowered natural gas trailer assembly and a control method with a cycle alternate control system, through the valve of a single independent gas cylinder Opening and closing control and control of pipeline valves increase the number of combinations of gas cylinders, improve the utilization rate of gas cylinders, increase the filling rate, and reduce the filling time of bicycles, so as to gain more time for bicycles to go to the mother station to inflate
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[0048] figure 1 It is a diagram of the intercommunicating controllable valve pipeline system in the present invention, and the system includes:
[0049] 1) Low, sub-medium, medium and high pressure manifolds G-01~G-04;
[0050] 2) The cut-off valves V2-05~V2-08 and pressure gauges PT1~PT4 are respectively set on each gas manifold;
[0051] 3) Four groups of gas cylinders A, B, C, and D respectively connected to their respective gas manifolds. The gas cylinders directly connected to each manifold are respectively defined according to the order of manifolds as follows: low-pressure pipes connected to gas cylinders A1~A3, sub-medium pressure pipes connected to gas cylinders B1~B3, medium-pressure pipes connected to gas cylinders C1~C3, high-pressure pipes connected to gas cylinders Cylinders D1~D3;
[0052] 4) Bypass valves V2-09~V2-011 are respectively set between adjacent gas manifolds.
[0053] The above four sets of pressure gauges PT1~PT4 are all connected to the signal ...
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The invention provides an unpowered natural gas trailer assembly provided with a cyclic and alternate control system and a control method. By adoption of the unpowered natural gas trailer assembly provided with the cyclic and alternate control system and the control method, the technical problems of lower filling efficiency and speed of an existing unpowered gas filling station are solved. According to the technical scheme, based on a high-pressure gas cylinder container provided with an interconnected controllable valve pipeline system, opening-closing regulation and control of valves of independent gas cylinders connected to all gas collection pipes and switching connection between the independent gas cylinders and the gas collection pipes are achieved by detecting the pressure states ofall the gas collection pipes; and the control method also relates to an independent gas cylinder cyclic and alternate switching sequence table and a special memory for pressure switching values. By adoption of the unpowered natural gas trailer assembly provided with the cyclic and alternate control system and the control method, through opening-closing regulation and control of the valve of eachindependent gas cylinder and regulation and control of pipeline valves, the number of combination times of the gas cylinders is increased, the utilization rate of the gas cylinders is increased, the filling speed is increased, the filling time for each trailer is shortened, and the each trailer has more time to travel to a primary filling station for gas filling.
Description
technical field [0001] The invention relates to a natural gas refueling system and a control method, which belong to the technical field of natural gas applications, in particular to a non-powered compressed natural gas trailer assembly and a control method with a gas cylinder circulation alternate control system. Background technique [0002] With the country's environmental governance, in order to prevent air pollution, it is imminent to control the exhaust of fuel vehicles. Electric vehicles and gas vehicles will gradually replace fuel vehicles. At present, the public transport systems of major cities have gradually adopted natural gas instead of fuel oil as the main power source of vehicles, and the construction of natural gas refueling stations in various places will flourish. [0003] At present, there are two types of natural gas vehicle refueling stations commonly used at home and abroad: 1) The gas refueling stations that use natural gas from the pipeline transporta...
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IPC IPC(8): F17C5/06F17C13/02F17C13/04
Inventor 韩晓燕王拓王红霞刘玉红张志辉郭淑芬
Owner SHIJIAZHUANG ENRIC GAS EQUIP
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