Flashboard periphery sealed knife gate valve

A side sealing, knife gate valve technology, applied in the field of knife gate valves, can solve the problems of loose sealing of the sealing ring, affecting the long-term operation of the device, and easy accumulation of materials at the bottom, so as to achieve easy operation, convenient maintenance and installation, and high performance. smooth effect

Pending Publication Date: 2018-09-18
云峰科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for this kind of gate face and side sealing form, the sealing ring is prone to loosening or sealing damage in the fully open state; when the valve is installed vertically, it is easy to have the site of material accumulation at the bottom, which hinders the complete shut-off of the valve; and the valve The service life is short, which affects the long-term operation of the device

Method used

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  • Flashboard periphery sealed knife gate valve
  • Flashboard periphery sealed knife gate valve
  • Flashboard periphery sealed knife gate valve

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] Such as figure 1 , figure 2 As shown in the figure, a knife gate valve is sealed around the gate, including a valve body, a bracket 14 is fixedly connected to the top of the valve body, and an operating device 15 is fixed to the top of the bracket 14 . The operating device 15 can replace bevel gears, electric or pneumatic actuators according to the requirements of use to realize manual, electric or pneumatic operation of the valve, and the bracket 14 can be adjusted adaptively, and can provide ISO5210 standard connection terminals to ensure connection. In this embodiment, the manual opera...

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Abstract

The invention relates to a flashboard periphery sealed knife gate valve. The flashboard periphery sealed knife gate valve comprises a valve body. The top of the valve body is fixedly connected with asupport. An operating device is fixed to the top of the support. The two sides of the valve body are provided with a left valve body and a right valve body. An elastic special-shaped valve seat is clamped and fixed between the left valve body and the right valve body. The special-shaped valve seat is in a U shape. A flashboard slides in the special-shaped valve seat in a sliding mode. The two sides of the top end of the special-shaped valve seat are provided with transverse cleaning scraping plates correspondingly. The space between the top end of the left valve body and the top end of the right valve body is filled with packing. The packing is fastened and pressed tightly through a packing bushing. A valve rod is arranged in the support. The top of the flashboard is connected with the bottom of the valve rod. The top of the valve rod is fixedly connected with the operating device. According to the flashboard periphery sealed knife gate valve, the valve body with the grooves is adoptedto clamp the elastic special-shaped valve seat to press the periphery of the flashboard for sealing; the sealing performance is goo; the thrust of the valve is stable, and the opening thrust cannot be increased due to rising of the pressure differential pressure of the valve.

Description

technical field [0001] The invention relates to a knife gate valve sealed around the side of the gate, which is suitable for wear-resistant working conditions of liquid and solid flow such as mineral material transportation, and is specially used for shutting off or discharging material transportation pipelines, belonging to the field of gate machinery. Background technique [0002] In the mineral material transportation link of the metallurgical industry, it is often necessary to cut off or discharge the mineral material medium in the pipeline. After the valve is closed, the pressure difference between the front and back of the valve can reach 10.0MPa, and the material accumulates in the valve cavity, which is prone to failures such as poor sealing of the valve or valve core being damaged by material erosion. In terms of valve type selection, it is advisable to choose a pair of clip-on knife gate valves with light weight, small installation size and strong flow capacity. O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/04F16K41/02F16K3/30
CPCF16K3/30F16K27/044F16K41/02
Inventor 李晓冬
Owner 云峰科技(北京)有限公司
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