Low-temperature compressor and superfluid helium low-temperature system
A compressor, low temperature technology, applied in compressors, refrigerators, mechanical equipment, etc., can solve the problem of large temperature span of the rotating shaft, and achieve the effect of saving resources and improving efficiency
Pending Publication Date: 2022-01-25
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The first object of the present invention is to provide a low-temperature compressor, which aims to solve the technical problem that a special structure needs to be adopted due to the large temperature span of the rotating shaft when the low-temperature compressor is in use
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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 creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0030]It should also be ...
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
Login to View More Abstract
The invention is suitable for the field of superfluid helium preparation, and discloses a low-temperature compressor and a superfluid helium low-temperature system. The superfluid helium low-temperature system comprises a compression unit, a helium liquefaction circulation unit, a superfluid helium circulation unit and a low-temperature liquid storage device; the low-temperature liquid storage device comprises a liquid area and a steam area; the low-temperature compressor of the superfluid helium circulation unit is placed in the low-temperature liquid storage device, the end, away from an impeller, of the low-temperature compressor is placed in the liquid area, the low-temperature compressed impeller is placed in the steam area, liquid helium generated by the helium liquefaction circulation unit enters the superfluid helium circulation unit and enters the low-temperature liquid storage device after being throttled and cooled in the superfluid helium circulation unit, the low-temperature compressor sucks helium steam in the steam area, the liquid helium at the bottom of the liquid area can be converted into superfluid helium, and helium in the steam area returns to the compression unit after being pressurized through the low-temperature compressor; the low-temperature compressor is soaked in the superfluid helium for use, so that the span of a temperature zone where the rotating shaft is located is small, and the rotating shaft does not need to be specially designed.
Description
technical field [0001] The invention relates to the technical field of superfluid helium preparation, in particular to a cryogenic compressor and a superfluid helium cryogenic system. Background technique [0002] With the wide application of superfluid helium in high-energy physics, nuclear fusion, superconducting electricity and other fields, large-scale superfluid helium cryogenic systems have become an indispensable infrastructure. Cryogenic compressors are key components of large-scale superfluid helium cryogenic systems. At present, centrifugal cryogenic compressors are commonly used in the world to pump and depressurize helium vapor in cryogenic liquid storage to continuously produce superfluid helium. Its working medium is helium at 2K and 3kPa, and the rotor speed is up to 10 4 rpm-10 5 rpm. The cryogenic compressor has the following characteristics: (1) The cryogenic compressor is placed outside the cryogenic liquid storage; (2) The rotating shaft is placed vert...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F04B37/08F04B39/04F04B39/06F25B9/00
CPCF04B37/08F04B39/04F04B39/06F25B9/002
Inventor 张舒月伍继浩刘芳
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI