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Flue gas valve

A flue gas and valve body technology, which is applied to lift valves, valve devices, engine components, etc., can solve problems such as affecting valve performance, easy locking of valve shafts and bearings, and easy jamming of butterfly plates and valve bodies. To achieve the effect of flexible valve operation and long service life

Inactive Publication Date: 2011-06-29
陆平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most flue gas pipelines in the metallurgical industry use S-shaped butterfly valves. At a high temperature of 500-600 ° C, due to thermal expansion, the butterfly plate and the valve body are easily blocked, and the valve shaft and the bearing are also prone to lock. Phenomenon, affecting the performance of the valve

Method used

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  • Flue gas valve
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Examples

Experimental program
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Embodiment Construction

[0009] Such as figure 1 As shown, a smoke valve includes a valve body 5, a butterfly plate 8, a valve shaft 6, a packing 4, a bearing 1, an upper bracket 2, and a lower bracket 9. The butterfly plate 8 is installed in the valve body 5, and the butterfly plate 8 and The valve shaft 6 is connected by the pin shaft 7, the upper bracket 2 is installed at the end of the valve body 5, the lower bracket 9 is installed at the tail of the valve body 5, the packing 4 is installed in the valve body 5 through the gland 3, the butterfly plate 8 and the valve There is a gap between the body 5, so that there will be no jamming between the valve body and the butterfly plate at a high temperature of 500-600 ° C. The bearing 1 is installed on the upper bracket 2 and the lower bracket 9 respectively, away from the heat source, ensuring The rotation of the valve shaft is flexible.

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PUM

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Abstract

The invention provides a flue gas valve which comprises a valve body, a butterfly plate, a valve shaft, stuffing, bearings, an upper bracket and a lower bracket, wherein the butterfly plate is mounted in the valve body and is connected with the valve shaft through a pin shaft; the upper bracket is mounted at the end part of the valve body; the lower bracket is mounted at the tail of the valve body; the stuffing is mounted in the valve body through a gland; a gap is reserved between the butterfly plate and the valve body; and the bearings are mounted on the upper bracket and the lower bracket respectively. The flue gas valve has the benefits as follows: the valve body and the butterfly plate cannot be blocked, the valve shaft and the bearings cannot be locked, the valve can be operated flexibly, and the service life is long.

Description

Technical field [0001] The invention relates to a valve device, in particular to a flue gas valve. Background technique [0002] At present, most flue gas pipelines in the metallurgical industry use S-shaped butterfly valves. At a high temperature of 500-600 ° C, due to thermal expansion, the butterfly plate and the valve body are easily blocked, and the valve shaft and the bearing are also prone to lock. Phenomenon, affecting the performance of the valve. Contents of the invention [0003] In order to overcome the disadvantages of existing flue gas valves such as easy jamming between a butterfly plate and a valve seat and easy occurrence of locking between a valve shaft and a bearing due to high temperature thermal expansion, the present invention provides a flue gas valve. [0004] The technical solution adopted by the present invention to solve the technical problem is a flue gas valve, which includes a valve body, a butterfly plate, a valve shaft, a filler, a bearing,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K1/32F16K1/36
Inventor 陆平
Owner 陆平