Low-temperature liquid storage tank cover subsystem and low-temperature liquid storage tank

A cryogenic liquid and storage tank technology, which is applied in the field of cryogenic liquid storage tank cover systems and cryogenic liquid storage tanks, can solve problems such as troublesome installation and gas loss, and achieve the effects of improved efficiency, easy installation and convenient use.

Active Publication Date: 2015-07-08
TONGJI UNIV
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the evaporated gas is a loss after all
At the same time, there are a large number of cryogenic liquid storage tanks in use. It is also a very troublesome thing to install a refrigerator, because it involves transformation problems. Ev

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-temperature liquid storage tank cover subsystem and low-temperature liquid storage tank
  • Low-temperature liquid storage tank cover subsystem and low-temperature liquid storage tank
  • Low-temperature liquid storage tank cover subsystem and low-temperature liquid storage tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cryogenic liquid storage tanks, such as figure 1 , figure 2 , image 3 As shown, it includes a cryogenic liquid storage tank body 1 and a cover system 2 .

[0031] Such as figure 1 , image 3 As shown, the cryogenic liquid storage tank body 1 is composed of a storage tank inner shell 111, a storage tank outer shell 113 and a storage tank insulation material 112 filled between the storage tank inner shell 111 and the storage tank outer shell 113. On the cryogenic liquid storage tank body 1 A storage tank liquid inlet pipe 121 and a storage tank steam outlet pipe 131 are provided. The storage tank liquid inlet pipe 121 is provided with a storage tank liquid inlet valve 122 , and the storage tank outlet pipe 131 is provided with a storage tank steam outlet valve 132 . The storage tank insulation material 112 is sandwiched between the storage tank inner shell 111 and the storage tank outer shell 113 to reduce heat leakage. The upper part has a storage tank opening 141...

Embodiment 2

[0042] The difference from Embodiment 1 is that the refrigerator cover 322 is made of low thermal conductivity material such as foam material, such as Figure 7 shown.

Embodiment 3

[0044] The difference from Embodiment 1 is that no freezer cover is set in the low temperature part 30, such as Figure 8 As shown, a large heat leakage loss may occur at this time, which may cause dew and ice on the tank cover and cause corrosion problems.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a low-temperature liquid storage tank cover subsystem and a low-temperature liquid storage tank, wherein the cover subsystem arranged on the low-temperature liquid storage tank includes a storage tank cover and a pulse tube refrigerator; the pulse tube refrigerator is arranged on the storage tank cover and includes a low-temperature part and a room-temperature part; the low-temperature part includes a cooler, a heat regenerator, a cold energy heat exchanger and a pulse tube which are connected in order; the cooler and the pulse tube are connected with the room-temperature part; the room-temperature part compresses gas to generate a pressure wave, the gas is expanded at the bottom of the pulse tube for refrigeration, the expansion work is recovered by an expansion work recovery device of the room-temperature part, steam is condensed into a liquid on the cold energy heat exchanger, and the liquid flows back to the low-temperature liquid storage tank. Compared with the prior art, the pulse tube refrigerator is mounted in the low-temperature liquid storage tank cover subsystem and is equipped with the expansion work recovery device, and the efficiency is improved, so that recondensed evaporation gas is profitable, and the cover subsystem can be applied in the widely-used low-temperature liquid storage tank.

Description

technical field [0001] The invention relates to a cryogenic device, in particular to a cryogenic liquid storage tank cover system and a cryogenic liquid storage tank. Background technique [0002] Cryogenic liquid storage tanks are used to store cryogenic liquids, such as liquid helium, liquid hydrogen, liquid nitrogen, liquefied natural gas and other cryogenic liquids. Due to heat leakage, a part of the gas is always evaporated. In order to reduce evaporation, the evaporated gas can be recondensed with a cryogenic refrigerator. The early refrigerators used GM refrigerators, whose refrigeration efficiency was very low, and were rarely used except for liquid helium storage tanks. Compared with the GM refrigerator, the cooling efficiency of the newly developed pulse tube refrigerator has been greatly improved, but the efficiency is still too low. The gas released due to evaporation is still small compared to the electricity cost of a pulse tube refrigerator. But the evapor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F17C1/12F17C13/04F25B9/14
Inventor 朱绍伟
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap