Automatic pressurization system for low-temperature liquefied carbon dioxide

A technology for liquefying carbon dioxide and supercharging systems, which is applied to machines/engines, liquid variable volume machinery, and equipment loaded into pressure vessels. Effects of technical requirements

Inactive Publication Date: 2022-03-01
济南华信流体控制有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Automatic pressurization system for low-temperature liquefied carbon dioxide

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Embodiment Construction

[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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PUM

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Abstract

The invention provides a low-temperature liquefied carbon dioxide automatic pressurization system which comprises a pressurization module 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 air temperature detection part, and the pressurization pump is provided with an air return end; the gas return end of the booster pump is connected with the top end of the liquefied gas raw material tank and discharges raw material gas into the storage tank, a first switch valve is arranged on a pipeline at the input end of the booster pump, and a second switch valve, a third switch valve and a gas return temperature detection piece are arranged on a pipeline at the gas return end of the booster pump; when the booster pump works normally in a pressurizing mode, the first switch valve and the second switch valve are opened, gas gasified through the gas return end enters the storage tank to be supplemented, and the pressure in the storage tank is maintained; and when the temperature detected by the return air temperature detection piece is higher than the set temperature, the booster 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 pressurization of low-temperature liquefied gas, in particular to an automatic pressurization system of low-temperature liquefied carbon dioxide. Background technique [0002] At present, the process of filling carbon dioxide gas cylinders is to use a cryogenic liquid booster pump to pressurize the cryogenic liquefied gas, and then enter the gas cylinder through the control of the valve group. The quality of the gas cylinder will be monitored when it takes time, and when it reaches the set value stop filling. [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 object of the present invention is to provide a low-temperature liquefied carbon dioxide automatic pressurization system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/02F17C13/00F17C13/02F17C13/04F04B49/06
CPCF17C5/02F17C13/002F17C13/026F17C13/025F17C13/04F04B49/065F17C2221/013F17C2227/0135F17C2227/0337F17C2250/032F17C2250/036F17C2250/043F17C2250/072F17C2205/0352F17C2205/0388
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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