High-temperature high-pressure self-sealing gate valve with double flat shutter board

A high-temperature, high-pressure, self-sealing technology, applied to sliding valves, valve devices, engine components, etc., can solve problems such as scratches on sealing surfaces, internal leakage, and poor sealing effects

Inactive Publication Date: 2006-09-27
江苏远洋阀门智控股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In industries such as chemical industry, petroleum, natural gas, power plants, coal mines, construction, sewage treatment, and light industry, the gate valves commonly used are integrated, and the gates are wedge-shaped with a large top and a small bottom, which is not only inconvenient to process, but also due to the There are often hard particles or other dirt in the liqu

Method used

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  • High-temperature high-pressure self-sealing gate valve with double flat shutter board
  • High-temperature high-pressure self-sealing gate valve with double flat shutter board
  • High-temperature high-pressure self-sealing gate valve with double flat shutter board

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Embodiment Construction

[0023] The present invention is specifically described below in conjunction with accompanying drawing:

[0024] Such as figure 1 , 2 As shown, the high temperature and high pressure self-sealing double-plate gate valve of the present invention includes a valve body 1, a valve cover 2, an operating screw 3 and an operating hand wheel 4 are arranged on the upper valve cover 2, and the valve body 1 is provided with a valve connected to the operating screw 3. A moving gate mechanism, the valve body 1 is provided with a sealing surface that matches the gate in the gate mechanism. The gate mechanism includes a central push rod 5 and two oppositely arranged gates 6, such as image 3 , 4 As shown, the central push rod 5 includes an upper end connector 51, a neck 52 and a wedge-shaped lower end 53. The upper end connector 51 is provided with a card slot 511 for locking with the operating screw 3, and the lower end 53 is opposite. Its vertical axis is a symmetrical wedge-shaped head,...

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Abstract

The invention relates to a high-temperature high-pressure self-sealing dual-plane gate valve, which comprises a valve, a valve cover, an operation screw and an operation hand wheel on the valve cover. Wherein, the valve has a gate plate connected to the operation screw, and sealing surface matched with the gate plate; said valve comprises two separate gate plates and a central pushing rod; two gate plates are opposite, whose outer sealing surfaces are parallel, and inner surfaces are uniform distributed with several compress springs; the central pushing rod via its lower end and the clamp groove at the inner sides of two gate plates is clamped between two gate plates, while the upper end via the connector is connected to the operation screw. Via the operation screw, the pushing rod via its lower end can move said two gate plates up and down along the sealing surface; and the compress spring compresses the two side sealing surfaces of gate plates on the sealing surface of valve, to confirm the sealing effect and prolong the service life.

Description

technical field [0001] The present invention relates to a valve. Background technique [0002] In industries such as chemical industry, petroleum, natural gas, power plants, coal mines, construction, sewage treatment, and light industry, the gate valves commonly used are integrated, and the gates are wedge-shaped with a large top and a small bottom, which is not only inconvenient to process, but also due to the There are often hard particles or other dirt in the liquid medium, and these dirt remain on the sealing surface of the valve body, which will scratch the sealing surface during the sealing process, make the sealing effect worse and cause internal leakage, resulting in the use of the gate The life is greatly shortened, and the normal wear and tear of the sealing surface will also cause internal leakage because it cannot be compensated. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a high temperatu...

Claims

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Application Information

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IPC IPC(8): F16K3/18F16K3/314
Inventor 胡金木
Owner 江苏远洋阀门智控股份有限公司
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