2K cold compressor impeller

A technology of compressor impeller and main blade, applied in mechanical equipment, machine/engine, liquid fuel engine, etc., can solve problems such as low efficiency

Pending Publication Date: 2019-01-08
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The efficiency of this method is very low, and a large amount of high-quality low-

Method used

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  • 2K cold compressor impeller
  • 2K cold compressor impeller
  • 2K cold compressor impeller

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Embodiment Construction

[0029] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0030] The impeller structure of the present invention is as figure 1 As shown, the impeller is connected to the main shaft through the connection port 1 of the rotating shaft. After the main shaft rotates at high speed, it drives the impeller, and the impeller rotates at high speed along with the shaft. The negative pressure helium in the main blade 2 flows from the inner diameter to the outer diameter. At the same time, the negative pressure helium also flows with the axial vortex during the rotation process. At this time, the hel...

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Abstract

The invention discloses a 2K cold compressor impeller. The 2K cold compressor impeller is characterized by comprising an impeller rear cover plate (6), a plurality of main blades (2) and a plurality of flow dividing blades (3); the upper surface of the impeller rear cover plate (6) is a U-shaped arc surface with the center protruding upwards, and the center is provided with a rotation shaft connecting port (1); the parts extending from the lower edges of the outer sides of the main blades (2) to the upper edges are downward-protruding arcs matched with the U-shaped arc surface of the impellerrear cover plate (6); the parts extending from the lower edges of the outer sides of the flow dividing blades (3) to the upper edges are downward-protruding arcs matched with the U-shaped arc surfaceof the impeller rear cover plate (6); the main blades (2) and the flow dividing blades (3) are distributed on the U-shaped arc surface of the impeller rear cover plate (6) in a staggered manner; a helium outlet (5) is formed in the inner sides of every two adjacent main blades (2), and a helium inlet (4) is formed by the outer side of each main blade (2) and the outer side of the corresponding adjacent flow dividing blade (3).

Description

technical field [0001] The invention belongs to the field of negative-pressure low-temperature fluid, and relates to a 2K cold compressor impeller, which is specifically applied in a large-scale 2K low-temperature system, and can pressurize and transport low-temperature negative-pressure helium. Background technique [0002] Since the large-scale low-temperature superconducting technology was put into use, in order to ensure the stable and efficient operation of large-scale superconducting conductors, the working temperature of superconductors has continuously dropped to about 1.8K by taking advantage of the characteristics of the superfluid helium temperature zone. [0003] At present, the commonly used method to obtain a 1.8K low temperature system is to directly use a vacuum pump group at room temperature for decompression and cooling. After decompression, the negative-pressure low-temperature helium is heated to normal pressure through the heater, and then sent to the su...

Claims

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Application Information

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IPC IPC(8): F04D29/28F04D29/30
CPCF04D29/284F04D29/30
Inventor 张卓张磊李少鹏韩瑞雄张建琴桑民敬葛锐张洁浩叶瑞徐妙富孙良瑞张祥镇马长城赵同宪李梅
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
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