Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pressurizing vaporization device for recovering liquid oxygen cold energy and using method of pressurizing vaporization device

A vaporization device and liquid recovery technology, applied in liquefaction, refrigeration and liquefaction, energy input, etc., can solve the problems of waste of liquid oxygen cooling capacity, cold pollution of nearby environment, etc., and achieve the effect of reducing irreversible losses

Active Publication Date: 2022-03-25
HANGZHOU HANGYANG
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional liquid oxygen vaporization process adopts an air bath or water bath process, using air or water as a heat source to directly vaporize liquid oxygen, which will cause a huge waste of liquid oxygen cooling capacity and will also seriously pollute the surrounding environment.

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
  • Pressurizing vaporization device for recovering liquid oxygen cold energy and using method of pressurizing vaporization device
  • Pressurizing vaporization device for recovering liquid oxygen cold energy and using method of pressurizing vaporization device
  • Pressurizing vaporization device for recovering liquid oxygen cold energy and using method of pressurizing vaporization device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown: the raw material liquid oxygen is pressurized to about 8.4MPaG by the liquid oxygen pump 13 and then enters the fifth input end 25 of the heat exchanger 10, and is output from the fifth output end 31 of the heat exchanger 10 after being reheated by the heat exchanger 10 , the obtained product oxygen, the high-grade cold contained in the liquid oxygen is recovered in this process.

[0030] Nitrogen with a pressure of about 10KpaG (oxygen component is about 5ppm and nitrogen component is about 99.9%) enters the circulating nitrogen compressor 1 and is compressed and divided into two streams: one stream of nitrogen compressed to about 0.23MPaG is compressed from the first circulating nitrogen After pumping in the middle pumping section of machine 1, it enters the booster end 5 of the nitrogen booster expander to pressurize to a pressure of about 0.64MPaG, then enters the nitrogen booster expander, and then cools to about 313K in the cooler 6, and...

Embodiment 2

[0033] attached figure 2 Shown is a schematic diagram of a modified example of the device and method of the present invention. with attached figure 1 The difference is that the throttling valve 14 is considered to throttle the fluid, which has a large irreversible loss, and the liquid expander 17 connected in parallel with the throttle valve 14 can be used to expand the fluid output from the sixth output end of the cold end of the heat exchanger. At this time, the throttle valve 14 is closed or slightly opened. The liquid expander 17 is indirectly connected to the power generation brake end 18 through the gear box, and the power generation brake end 18 generates power externally. The valve 19 is used to adjust the pressure after the liquid expander 17 expands.

Embodiment 3

[0035] attached image 3 Shown is a schematic diagram of another modified example of the device and method of the present invention. with attached figure 1 The difference is that the nitrogen booster expander is composed of the nitrogen booster expander expansion end 7 and the nitrogen booster expander power generation braking end 50, and the two are indirectly connected through a gear box. Nitrogen with a pressure of about 10KpaG (the oxygen component is about 5ppm, and the nitrogen component is about 99.9%) enters the circulating nitrogen compressor 1 and is compressed and divided into two streams: one stream of nitrogen compressed to about 0.64MPaG is sent from the circulating nitrogen compressor 1 After being pumped in the middle pumping section, it directly enters the expansion port 7 of the nitrogen booster expander to expand to a pressure of about 25KpaG and a temperature of about 200K. The first output of the hot end is output, and the output temperature is about 310...

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

A boosting vaporization device for recovering liquid oxygen cold energy comprises a nitrogen compression system, an expansion refrigeration system, a liquid oxygen boosting system and a heat exchange system which are connected with one another through pipelines and valves. The nitrogen compression system consists of a first circulating nitrogen compressor, a first circulating nitrogen compressor aftercooler, a second circulating nitrogen compressor and a second circulating nitrogen compressor aftercooler; the expansion refrigeration system is composed of a nitrogen pressurization expansion machine, a nitrogen expansion machine and other auxiliary parts, nitrogen circulation and cooperation of the nitrogen circulation and the liquid oxygen vaporization reheating process are utilized, so that the overall logarithmic average temperature difference of the heat exchanger is within an extremely low range, irreversible losses of the heat exchanger are greatly reduced, and the heat exchange efficiency is improved. Therefore, recovery of high-grade cooling capacity of the liquid oxygen is realized on the basis of pressurizing and vaporizing the liquid oxygen, and the recovered cooling capacity is embodied in the form of liquid nitrogen.

Description

technical field [0001] The present invention relates to a booster vaporization device for recovering the cooling capacity of liquid oxygen and its use method. More specifically, the booster vaporization of liquid oxygen and the coupling of the nitrogen cycle and the reheating process of liquid oxygen vaporization are realized through nitrogen circulation An energy-saving method and device for recovering high-grade cooling capacity. Background technique [0002] With the increasing demand of human beings for energy, the reserves of fossil energy such as petroleum and coal as the main energy sources are increasingly depleted. In order to meet the needs of economic and social development, optimize the energy structure, promote sustainable economic and social development, and solve energy utilization and ecological problems Due to the dual problems of environmental protection, human beings urgently need to explore and develop clean energy. The utilization of renewable energy is...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02F28D21/00
CPCF25J1/0242F28D21/00F28D2021/0064F25J1/0015F25J1/0224F25J2210/50F25J2235/50F25J1/0045F25J1/004F25J1/0035F25J1/0037F25J1/0292F25J1/0288F25J2290/34F25J1/0042F25J2270/06F25J2240/40
Inventor 韩一松谭芳劳利建彭旭东张元秀姚蕾李玲李良英汪炜
Owner HANGZHOU HANGYANG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com