Automatic pressurization system for low-temperature liquefied gas
A pressurized system and liquefied gas technology, applied in pipeline systems, non-pressure vessels, fixed-capacity gas storage tanks, etc., can solve problems such as complex operation processes, achieve the effects of simplifying operation procedures, facilitating standard management, and reducing technical requirements
Active Publication Date: 2022-02-15
济南华信流体控制有限公司
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Problems solved by technology
[0003] However, the pre-cooling, start-stop and post-pump unloading of the existing cryogenic liquid booster pumps are all manually operated, and the operation process is very complicated, requiring workers with certain skills to operate
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[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention relates to the technical field of low-temperature liquefied gas pressurization, in particular to an automatic low-temperature liquefied gas pressurization system which comprises a pressurization module, a vaporizer and a pre-cooling module, the pressurization module comprises a pressurization pump and a pump pressure detection part, the pre-cooling module is used for pre-cooling the pressurization pump and comprises a return gas temperature detection part, and a gas return end is arranged on the pressurization pump; the gas return end of the pressurization pump is connected with the top end of a liquefied gas raw material tank and discharges raw material gas into the tank, a first switch valve is arranged on an input end pipeline of the pressurization pump, and a second switch valve, a third switch valve and a gas return temperature detection piece are arranged on a gas return end pipeline of the pressurization pump; when the pressurization pump works normally in a pressurizing mode, the first switch valve and the second switch valve are both opened, gas gasified through the gas return end can enter the liquefied gas raw material tank to be supplemented, and the pressure in the tank is maintained; and when the temperature detected by the return air temperature detection piece is higher than the set temperature, the pressurization pump stops working, the second switch valve is closed, the third switch valve is opened, and automatic pre-cooling is achieved.
Description
technical field [0001] The invention relates to the technical field of low-temperature liquefied gas supercharging, in particular to an automatic supercharging system for low-temperature liquefied gas. Background technique [0002] At present, the process of filling high-pressure gas cylinders with gas adopts the process of using a low-temperature liquid booster pump to pressurize the low-temperature liquefied gas, and then using a vaporizer to vaporize the low-temperature liquefied gas into a gaseous state, and then through the control of the valve group, it is filled to a high temperature. in a compressed gas bottle. [0003] However, the pre-cooling, start-stop and post-pump unloading of the existing cryogenic liquid booster pumps are all manually operated, and the operation process is very complicated, requiring workers with certain skills to operate. Contents of the invention [0004] The purpose of the present invention is to provide a method to solve the technical ...
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IPC IPC(8): F17C9/02F17C5/00F17C13/00F17C13/02F17C13/04F17C13/12F17D1/08F17D1/14F17D3/01F17D5/00
CPCF17C9/02F17C5/00F17C13/00F17C13/026F17C13/025F17C13/04F17C13/12F17D1/082F17D1/14F17D3/01F17D5/00F17C2205/0302F17C2227/0135F17C2227/04F17C2250/043F17C2250/0439F17C2227/046Y02T10/30
Inventor 赵永文黄丽丽张若虎张家林
Owner 济南华信流体控制有限公司
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