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Bidirectional sealing gate valve

A two-way sealing and gate valve technology, applied in the direction of valve devices, valve details, sliding valves, etc., can solve the problems of poor sealing effect, gate valve is not suitable for transporting media containing solid particles, etc., to achieve excellent service life, excellent safety, The effect of high impact toughness

Pending Publication Date: 2021-01-26
沪航科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in view of the above problems, the present invention proposes a two-way sealing gate valve, which mainly solves the problem that the gate valve in the prior art is not suitable for transporting media containing solid particle impurities, resulting in poor sealing effect

Method used

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Embodiment Construction

[0026] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to Figure 1 to Figure 6 , this embodiment provides a two-way sealed gate valve, including a valve body 1, a valve cover 2, a gate assembly 3, a valve stem 4, and a handwheel 5. The valve cover 2 is installed on the top of the valve body 1 by bolts, and the valve The body 1 is provided with a coaxial feed inlet 11 and a feed outlet 12, between the feed inlet 11 and the discharge outlet 12 is a flow channel 13 for medium circulation, and the gate assembly 3 is arranged in the flow channel Used to block the flow channel 13, the bottom of the flow channel 13 is provided with a gate groove 14, the lower end of the valve stem 4 penetrates into the valve body 1 from the valve cover 2 and is screwed with the gate assembly 3, the The upper end of valve rod 4 is fixedly connected with hand wheel 5 .

[0028] Define the direction of medium flow ...

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Abstract

The invention relates to the field of gate valves, in particular to a bidirectional sealing gate valve. The bidirectional sealing gate valve comprises a valve body, a valve cover, a gate plate assembly, a valve rod and a hand wheel, wherein the valve cover is arranged at the top of the valve body through a bolt, the valve body is provided with a feeding port and a discharging port which are coaxially arranged, a flow channel is formed between the feeding port and the discharging port, the gate plate assembly is arranged in the flow channel, a gate plate groove is formed in the bottom of the flow channel, the lower end of the valve rod penetrates into the valve body from the valve cover and is connected with the gate plate assembly, the upper end of the valve rod is connected with the handwheel, the gate plate assembly comprises a guide block, a left gate plate assembly and a right gate plate assembly, the left gate plate assembly and the right gate plate assembly are arranged on the two sides of the guide block, each of the left gate plate assembly and the right gate plate assembly comprises a gate plate which is arranged in parallel with the corresponding wedge-shaped surface, the gate plates can move relative to the guide block through elastic assemblies, a limiting sealing assembly is arranged between the periphery of each gate plate and the guide block, and an elastic baffle plate assembly is arranged in the gate plate groove. According to the bidirectional sealing gate valve, the problem that a gate valve in the prior art is not suitable for conveying a medium containing solid particle impurities, so that the sealing effect is poor is mainly solved.

Description

technical field [0001] The invention relates to the field of gate valves, in particular to a bidirectional sealing gate valve. Background technique [0002] In industrial production, the pressure and flow direction of the medium in the pipeline will change with the production conditions. It often occurs that the flow direction of the medium in the pipeline and the high and low pressure sides are opposite under different working conditions. Ordinary gate valves often only have a sealing surface on one side, which can only withstand high pressure on the corresponding side. When the high-pressure side becomes the other side, the sealing effect is greatly weakened, and leakage may occur, affecting production and even causing safety accidents. If two gate valves are installed relative to each other, although two-way sealing can be realized, the equipment investment is increased, and the control is complicated and the reliability is low. [0003] The existing patent publication n...

Claims

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Application Information

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IPC IPC(8): F16K3/16F16K3/28F16K3/30F16K3/314F16K3/316F16K27/04C22C38/00C22C38/02C22C38/04C22C38/42C22C38/44C22C38/46C22C38/50C22C38/54
CPCF16K3/16F16K3/28F16K3/30F16K3/314F16K3/316F16K27/047C22C38/04C22C38/02C22C38/44C22C38/54C22C38/42C22C38/46C22C38/50C22C38/002
Inventor 陈思良谢洪文张书恩卢爱山陈超群
Owner 沪航科技集团有限公司
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