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Multi-gas-storehouse refrigerator rotary valve

A technology of refrigerators and rotary valves, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of accumulation of assembly tolerances, rising manufacturing costs, rising costs, etc., and achieve reduced sealing surface, reduced cost, and reduced diameter Effect

Active Publication Date: 2016-02-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases manufacturing costs
Since the opening and closing of each valve has time requirements and is distributed on two sealing surfaces, in order to overcome the problem of accumulation of assembly tolerances, higher manufacturing accuracy is required and the cost increases

Method used

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  • Multi-gas-storehouse refrigerator rotary valve
  • Multi-gas-storehouse refrigerator rotary valve
  • Multi-gas-storehouse refrigerator rotary valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A rotary valve for multi-gas storage refrigerators, such as Figure 1 ~ Figure 2 As shown, it includes a left valve body 21, a right valve body 22, a stator 3, a mover 4, a valve shaft 5 and a motor 1, the left valve body 21 and the right valve body 22 are sealed and connected to form a valve shell, and the mover 4 and the stator 3 are in common The valve core is formed, the contact surface of the mover 4 and the stator 3 is the valve core sealing surface 43, one end of the valve shaft 5 is connected to the drive of the mover 4, and the other end is connected to the external motor 1; the valve shaft 5 is a hollow structure, and the valve shaft 5 The outer end is a low-pressure gas outlet 212 communicating with a low-pressure gas source, and an air storage valve balance chamber 4212a is formed between the inner end of the valve shaft 5 and the mover 4 .

[0044] The left valve body 21 is provided with a high-pressure gas inlet 211 communicating with a high-pressure gas s...

Embodiment 2

[0054] The difference from Embodiment 1 is that in this embodiment, the structure of the stator 3 is as follows Figure 7 As shown, the structure of mover 4 is as follows Figure 8 As shown in , the interface communicating with the corresponding gas storage is set on the inner ring. At this time, the channel on the side of the regenerator is on the outer ring, and the flow area can be larger.

Embodiment 3

[0056] The stator in this embodiment is as Figure 10 , 11 As shown, the structure of the mover is as Figure 12 , 13 shown.

[0057] Such as Figure 9 As shown, the difference from Embodiment 1 is that the mover 4 is set in the left valve body 21, the stator 3 is set in the right valve body 22, the valve shaft 5 is directly fixedly connected with the mover 4, and the end of the stator 3 is provided with The stator boss 33 forms a low-pressure chamber 2212 and a high-pressure chamber 2211 between the stator boss 33 and the right valve body 22 . The high-pressure chamber 2211 communicates with the high-pressure gas inlet 211 provided on the right valve body 22 and communicates with the stator high-pressure port 3212 at the same time. The low-pressure chamber 2212 communicates with the low-pressure gas outlet 212 opened on the left valve body 21 and communicates with the low-pressure gas source, and communicates with the stator low-pressure port 3211 at the same time.

[0...

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PUM

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Abstract

The invention relates to a multi-gas-storehouse refrigerator rotary valve. The multi-gas-storehouse refrigerator rotary valve comprises a valve body, a stator, a rotor and a valve shaft, wherein the rotor and the stator are respectively arranged in the valve body to jointly form a valve element; one end of the valve shaft is in transmission connection with the rotor; the other end of the valve shaft is connected with a motor; the contact surface between the rotor and the stator is a valve element sealing surface; a connector communicated with an external gas storehouse is located on one annular surface of the valve element sealing surface; a connector communicated with a high-pressure gas source and a low-pressure gas source is located on another annular surface of the valve element sealing surface; the motor drives the rotor to rotate; a connector on the rotor and a connector on the stator are closed or staggered and are used for controlling communication between a pulse tube / a heat regenerator and the external gas storehouse / the high-pressure gas source and the low-pressure gas source. Through the multi-gas-storehouse refrigerator rotary valve, all the connectors of the valve are gathered on one sealing surface, so that a pair of valve elements can be adopted; the manufacturing cost is reduced; a flow channel in fluid communication with a low-pressure gas source is formed in the middle of the valve shaft; through the sealing stator and the sealing rotor, the valve shaft and valve body are well sealed, so that the gas of the high-pressure gas source is not leaked to the low-pressure gas source as far as possible.

Description

technical field [0001] The invention relates to a valve for a refrigerator with multiple gas storages, in particular to a rotary valve for a refrigerator with multiple gas storages. Background technique [0002] Common multi-gas storage refrigerators, such as multi-gas storage pulse tube refrigerators or multi-gas storage GM refrigerators, are connected to multiple gas storages and connected to high and low pressure gas sources at the same time. In these multi-gas storage refrigerators, it is a common way to use a rotary valve to control the opening and closing of the gas storage or the gas source, but the existing rotary valve needs two rotary surfaces to be able to connect the gas storage valve and the high and low pressure. The valves are arranged well, the valve of the gas storage is on one rotary surface, and the valve of high and low pressure gas source is on the other rotary surface. This is accomplished with two pairs of spools, each with a rotor and mover. The rot...

Claims

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Application Information

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IPC IPC(8): F25B41/04F25B41/20
Inventor 朱绍伟
Owner TONGJI UNIV
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