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Restrictive one-way valve, its control method and use

A one-way valve, a restrictive technology, applied in the field of differential pressure valves, it can solve the problems of vane breakage, differential pressure valve sliding vane collision noise, etc., to achieve the advantages of price and reliability, and the effect of arbitrarily changing the operating pressure

Active Publication Date: 2011-01-19
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in compressors mounted on air conditioners, etc., when the capacity control type compressor controls the compression action of the cylinder, the sliding vane of the differential pressure valve with two-stage operation is prone to knocking sound or the vane is damaged.

Method used

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  • Restrictive one-way valve, its control method and use
  • Restrictive one-way valve, its control method and use
  • Restrictive one-way valve, its control method and use

Examples

Experimental program
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Effect test

no. 1 example

[0025] see Figure 1-Figure 2 , is a cross-sectional view of the restrictive one-way valve 1 of the present invention. The restrictive one-way valve 1 is composed of a sliding valve 4 embedded in the first pipe body 2a, and a valve seat body 3 arranged in pairs on the inner diameter of the first pipe body 2a without gaps, and flexibly supports the sliding valve 4 The first spring 11a of the slide valve 4 and the stopper 12 for positioning the slide valve 4 to stop are jointly constituted. The end of the sliding valve 4 facing the valve seat body 3 is provided with a conical first valve head 9a, and the first valve head 9a and the first valve seat 5a provided on the valve seat body 3 jointly complete the opening and closing action of the first valve.

[0026] The slide valve 4 is provided with a second valve. The front end of the cylindrical hole in the center of the slide valve 4 is provided with a second gas inlet 7b, and the slide valve 4 is provided with a spherical secon...

no. 2 example

[0036] Next, an example in which the restrictive check valve 1 is applied to a capacity control type rotary compressor will be described. exist Figure 5 Among them, a control cylinder 32 having a cylinder compression chamber 37 is arranged inside the housing 31 whose pressure is on the high pressure side. Inside the cylinder compression chamber 37 , the revolving piston 34 is driven by the crankshaft 35 , and the sliding vane 33 is driven back and forth in the sliding vane groove 40 . The piston 34 revolves, and after the sliding plate 33 in contact with the piston moves back and forth, the low-pressure gas with the pressure Ps sucked into the cylinder compression chamber 37 from the suction pipe 36 is compressed and becomes high-pressure gas, and is discharged into the housing 31. Therefore, the sliding plate 33 that contacts the piston 34 moves back and forth, and the cylinder 32 is controlled to perform compression, and this state is called the H mode.

[0037] but, Fi...

no. 3 example

[0048] The third embodiment of the present invention is an application example in which a two-cylinder rotary compressor is mounted on a heat pump air conditioner with both heating and cooling functions, such as Figure 6 shown. In the two-cylinder rotary compressor 21, one of the two cylinders is always performing compression operation, while the other cylinder, the control cylinder 32, has a device for discontinuous compression and interruption of compression as described in the second embodiment. Therefore, the compressor 21 has the characteristics of controlling the exhaust volume of the cylinder and adjusting the cooling capacity. That is to say, the heat pump air conditioner of the third embodiment is designed to change the ratio of air-conditioning capacity under cooling conditions to heating conditions, emphasize efficiency while reducing passing capacity under cooling conditions, and emphasize capacity under heating conditions.

[0049] Figure 6 Among them, the exh...

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PUM

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Abstract

The invention relates to a restrictive one-way valve, a method for controlling the same and application thereof. The restrictive one-way valve comprises a first tube body with a first open end and a second open end; the inside of the first tube body is provided with a first valve consisting of a valve seat body and a slide valve; the valve seat body is provided with a first gas flowing outlet; a first gas flowing inlet is arranged between the outside diameter of the slide valve and the inside diameter of the first tube body; the slide valve is provided with a second valve; the second valve comprises a second gas flowing inlet arranged at one end of the slide valve and a second gas flowing outlet arranged at the other end of the slide valve; the first open end, the first gas flowing inlet and the second gas flowing inlet are communicated; the second open end, the first gas flowing outlet and the second gas flowing outlet are sequentially communicated; and the stiffness coefficient of afirst spring is less than that of a second spring. The restrictive one-way valve has low manufacturing cost and high reliability and can effectively eliminate the collision sound of a sliding sheet generated when a capacity control type compressor controls the compression of a cylinder.

Description

technical field [0001] The invention relates to a differential pressure valve, in particular to a restrictive one-way valve and its control method and application. Background technique [0002] Differential pressure valves that operate with one pressure have long been used as fluid control components. However, in compressors mounted on air conditioners, etc., when the capacity control type compressor controls the compression action of the cylinder, the sliding vane of the differential pressure valve that operates in two stages is prone to knocking noise or vane breakage. Contents of the invention [0003] The purpose of the present invention is to provide a simple and reasonable structure, low production cost, high reliability, which can effectively eliminate the impact sound of the sliding vane that occurs when the capacity control compressor controls the compression of the cylinder, and avoid the limitation of the sliding vane damage. A one-way valve and its control met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/18F25B41/04
Inventor 小津政雄李华明杨国用
Owner GUANGDONG MEIZHI COMPRESSOR