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Subcooler for low-temperature liquid oxygen

A subcooler and liquid oxygen technology, applied in liquefaction, indirect heat exchanger, cold treatment separation, etc., to avoid potential safety hazards, prevent sudden temperature drop, prevent liquid nitrogen shortage or roof fall

Inactive Publication Date: 2016-03-30
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the prior art lacks a device for reducing the temperature of ordinary liquid oxygen to -194°C

Method used

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  • Subcooler for low-temperature liquid oxygen
  • Subcooler for low-temperature liquid oxygen
  • Subcooler for low-temperature liquid oxygen

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] Such as figure 1 , figure 2 , image 3 As shown, a low-temperature liquid oxygen subcooler includes a liquid nitrogen storage tank 1, a cooling assembly, a high liquid level detection sensor 2 and a low liquid level detection sensor 3, and the cooling assembly is fixed on the liquid nitrogen through the cooling core support assembly. In the storage tank, the liquid nitrogen storage tank is provided with a liquid nitrogen inlet 4, a liquid nitrogen outlet and a nitrogen discharge port 5. The cooling unit includes a cooling core, a liquid oxygen input pipe and a liquid oxygen output pipe. Both the liquid oxygen input pipe 7 and the liquid oxygen 6 output pipe are connected to the cooling core; the high liquid level detection sensor is fixed on the high liquid level of the liquid nitrogen storage tank. position, the low liquid level detection sensor is fixed at the low liquid level of the liquid nitrogen storage tank. There is a filling valve at the inlet of liquid nit...

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Abstract

The invention relates to a subcooler for low-temperature liquid oxygen. The subcooler comprises a liquid nitrogen storage tank, a cold exchange assembly, a high liquid level measurement sensor and a low liquid level measurement sensor; the cold exchange assembly is fixed in the liquid nitrogen storage tank through a cold exchange core supporting assembly, and the liquid nitrogen storage tank is provided with a liquid nitrogen inlet, a liquid nitrogen outlet and a nitrogen gas discharge port; the cold exchange assembly comprises a cold exchange core, a liquid oxygen input pipe and a liquid oxygen output pipe, and the liquid oxygen input pipe and the liquid oxygen output pipe are communicated with the cold exchange core; the high liquid level measurement sensor is fixed to the high liquid level of the liquid nitrogen storage tank, and the low liquid level measurement sensor is fixed to the low liquid level of the liquid nitrogen storage tank. According to the invention, the common liquid oxygen with the temperature being minus 183 DEG C can be fast cooled to minus 194 DEG C.

Description

technical field [0001] The invention relates to a low-temperature liquid oxygen subcooler. Background technique [0002] The low liquid oxygen inlet temperature boundary condition test of the liquid oxygen / kerosene engine requires that the liquid oxygen inlet temperature be as low as -191°C when the engine is working. Ability to cool down to -194°C. However, the prior art lacks a device for reducing the temperature of ordinary liquid oxygen to -194°C. Contents of the invention [0003] In order to ensure that ordinary liquid oxygen with a temperature of -183°C is quickly cooled down to -194°C, the invention provides a low-temperature liquid oxygen subcooler. [0004] Technical solution of the present invention: [0005] A low-temperature liquid oxygen subcooler, which is special in that it includes a liquid nitrogen storage tank, a cooling assembly, a high liquid level detection sensor, and a low liquid level detection sensor, and the cooling assembly is fixed on the I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J5/00
CPCF25J5/002F25J2210/42F25J2215/50F25J2270/904F25J2290/34F28D1/0213F28D9/0006F25J5/00F25J2210/50
Inventor 王伟青唐斌运曹文庆杨战伟
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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