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Withdrawing type single-layer leakage-free four-way reversing valve

A four-way reversing valve and pull-out technology, which is applied to multi-way valves, valve details, valve devices, etc., can solve the problems of high cost, inconvenient maintenance, large volume, etc., and achieve the reduction of cost and weight, and a simple structure. , the effect of convenient maintenance

Pending Publication Date: 2018-08-03
郑时伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The butterfly valve four-way reversing valve cannot be completely sealed, especially after a long period of use, the leakage is particularly serious
Two three-way valves, or double-layer four-way reversing valves are bulky, expensive, and inconvenient for maintenance

Method used

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  • Withdrawing type single-layer leakage-free four-way reversing valve
  • Withdrawing type single-layer leakage-free four-way reversing valve
  • Withdrawing type single-layer leakage-free four-way reversing valve

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1, the present invention includes a valve body, an H-shaped baffle, a cover plate and a cylinder. The inside of the valve body is hollow, and the upper opening is sealed with the cover plate. The H-shaped baffle is placed inside the valve body. It is divided into 4 cavities, and a port is provided around the valve body to connect the 4 cavities with the outside respectively. There are 2 through holes on both sides of the H-shaped partition, and each through hole is equipped with A cylinder, the piston rod end of the cylinder is provided with a valve plug to cooperate with the through hole. refer to Figure 1 to Figure 5 .

Embodiment 2

[0023] Embodiment 2, a cylinder support is provided outside the valve body, the cylinder block is fixed on the cylinder support, and the piston rod passes through the side plate of the valve body so that the valve plug faces the through hole. refer to Figure 1 to Figure 5 , all the other are with embodiment 1.

Embodiment 3

[0024] Embodiment 3, the surface of the plug body of the valve plug has a slope-shaped structure, which can realize sealing by cooperating with the through hole. refer to Figure 1 to Figure 3 , and the rest are the same as the above-mentioned embodiment. refer to Figure 1 to Figure 5 , all the other are with embodiment 1.

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Abstract

The invention discloses a withdrawing type single-layer leakage-free four-way reversing valve which mainly solves the technical problems such as not good sealing property, a great size and high manufacturing cost of an existing four-way reversing valve. According to the technical scheme adopted by the invention, the key point is that the withdrawing type single-layer leakage-free four-way reversing valve comprises a valve body, an H-shaped partition, a cover plate and an air cylinder, wherein the inner part of the valve body is hollow, the upper part of the valve body is open and is in sealingfit to the cover plate; the H-shaped partition is placed inside the valve body for dividing the inner part of the valve body into four cavities; an end opening is formed in each of four sides of thevalve body for enabling the four cavities to separately communicate with the outer part; two through holes are formed in each of two side plates of the H-shaped partition plate; each through hole is correspondingly equipped with an air cylinder; and the tail end of the piston rod of each air cylinder is equipped with a valve plug which is matched with the corresponding through hole. The withdrawing type single-layer leakage-free four-way reversing valve is mainly used for a heat-storage combustion system used in the melting and casting industry.

Description

technical field [0001] The invention relates to a pull-out single-layer non-leakage four-way reversing valve. Background technique [0002] In industrial production, especially the regenerative combustion system used in the current melting and casting industry, in order to realize the periodic conversion of heat storage and heat release in the regenerative tank, the reversing valve has become one of the most important equipment in the regenerative combustion system. one. Taking the diffuse regenerative combustion system as an example, at present, in order to realize this conversion, butterfly valve type four-way reversing valves, two three-way valves, or double-layer four-way reversing valves are mainly used. The butterfly valve type four-way reversing valve cannot realize complete sealing, especially after using for a long period of time, the leakage is particularly serious. Two three-way valves, or double-deck four-way reversing valves are bulky, expensive, and inconveni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/22F16K31/122F16K27/02
CPCF16K11/22F16K27/0263F16K31/122
Inventor 郑时伟
Owner 郑时伟
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