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Hydraulic forced sealing flat gate valve

A technology of forced sealing, flat gate valve, applied in valve device, valve detail, sliding valve, etc., can solve the problem of reduced sealing performance, and achieve the effect of reducing leakage, reducing sealing cost and improving sealing effect

Pending Publication Date: 2022-08-05
TEJI VALVE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the technical problem that the existing slab gate valve will reduce the sealing performance due to the wear of the gate plate, the present invention proposes a hydraulic forced sealing slab gate valve

Method used

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  • Hydraulic forced sealing flat gate valve
  • Hydraulic forced sealing flat gate valve
  • Hydraulic forced sealing flat gate valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to Figure 1-5 , a hydraulic forced sealing flat gate valve, comprising a valve body 1, the valve body 1 is provided with two gates 10 symmetrically distributed on both sides, the top and the bottom of the gate 10 are provided with a limiting portion 11, the limiting portion 11 It has an integral structure with the gate 10 , first grooves 12 are opened on both sides of the limiting portion 11 , and the opposite side of the two limiting portions 11 is fixedly connected with a return spring 13 , and the other side of the return spring 13 is fixedly connected with a The first valve seat 14, the opposite sides of the two first valve seats 14 are fixedly connected with the second valve seat 15, and the opposite sides of the two second valve seats 15 located above are provided with second grooves 16. A piston 18 and a pressure block 19 are arranged between the second grooves 16 . The pressure block 19 is arranged above the piston 18 . A boss 23 is provided inside the bo...

Embodiment 2

[0039] refer to Figure 1-5 , a hydraulic forced sealing flat gate valve, comprising a valve body 1, the valve body 1 is provided with two gates 10 symmetrically distributed on both sides, the top and the bottom of the gate 10 are provided with a limiting portion 11, the limiting portion 11 It has an integral structure with the gate 10 , first grooves 12 are opened on both sides of the limiting portion 11 , and the opposite side of the two limiting portions 11 is fixedly connected with a return spring 13 , and the other side of the return spring 13 is fixedly connected with a The first valve seat 14, the opposite sides of the two first valve seats 14 are fixedly connected with the second valve seat 15, and the opposite sides of the two second valve seats 15 located above are provided with second grooves 16. A piston 18 and a pressure block 19 are arranged between the second grooves 16 . The pressure block 19 is arranged above the piston 18 . A boss 23 is provided inside the bo...

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Abstract

The invention belongs to the technical field of flat gate valves, and particularly relates to a hydraulic forced sealing flat gate valve which comprises a valve body, two gate plates which are symmetrically distributed on the two sides are arranged in the valve body, limiting parts are arranged at the tops and the bottoms of the gate plates, the limiting parts and the gate plates are of an integrated structure, first grooves are formed in the two sides of each limiting part, and the first grooves are communicated with the first grooves. The opposite faces of the two limiting parts are fixedly connected with reset springs, the other sides of the reset springs are fixedly connected with first valve seats, the opposite faces of the two first valve seats are fixedly connected with second valve seats, and the opposite faces of the two second valve seats located on the upper portion are provided with second grooves. A piston and a pressing block are arranged between the two second grooves, the pressing block is arranged above the piston, and a boss is arranged in the bottom of the valve body. According to the invention, the two gate plates are expanded or contracted through hydraulic transmission, so that forced sealing is realized, and abrasion to the outer surfaces of the gate plates is avoided.

Description

technical field [0001] The invention relates to the technical field of flat gate valves, in particular to a hydraulic forced sealing flat gate valve. Background technique [0002] The flat gate valve is a sliding valve whose closing part is a parallel gate. The flat gate valve can be divided into manual flat gate valve, pneumatic flat gate valve and electric flat gate valve according to the driving mode. It can be divided into flat gate valve with diversion hole, flat gate valve without diversion hole, oil field flat gate valve, pipeline flat gate valve and gas flat gate valve according to the purpose and use occasion. [0003] The existing flat gate valve generally realizes the opening and closing of the valve by driving the gate to move up and down by the driving mechanism. Since the thickness of the gate is a fixed value, the surface of the gate will wear during the up and down movement, resulting in the later sealing. The performance is gradually reduced, therefore, co...

Claims

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Application Information

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IPC IPC(8): F16K3/314F16K3/30F16K51/00F16K27/04
CPCF16K3/314F16K3/30F16K51/00F16K27/04Y02E10/20
Inventor 蔡毅叶志强周星彪杨积海杨贵春谢谱陈浙海
Owner TEJI VALVE GRP
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