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Valve seat of double-clip type butterfly valve for coal cinder pipeline

A technology of cinder and valve seat, which is applied in the field of valve seat of butterfly valve for clip-on cinder pipeline, which can solve the problems of tearing, rubber-lined sealing layer falling off, short life, etc., and achieves increased corrosion resistance and wear resistance, and is not easy to tear Effect

Inactive Publication Date: 2015-03-11
江苏明江阀业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of use, excessive wear of the inlet and outlet of the valve seat, peeling off and tearing of the sealing layer of the rubber lining often occur, resulting in a short service life, requiring frequent disassembly, repair and replacement

Method used

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  • Valve seat of double-clip type butterfly valve for coal cinder pipeline

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] The invention discloses a valve seat of a butterfly valve for a clip-on coal slag pipeline. The valve seat includes a skeleton 1 made of 153 alloy cast iron with excellent corrosion resistance and wear resistance and a rubber lining 2 made of wear-resistant rubber with high rubber content. , one side of the skeleton 1 is a horizontal plane, and the other side is provided with a concave hole 3, a groove 4 is arranged around the periphery of the concave hole 3, and the rubber lining 2 is located inside the concave hole 3 and passes through the groove 4. Fix it on the skeleton 1. This design makes it difficult for the rubber lining 2 to fall off from the skeleton 1, and the use of wear-resistant rubber material with high rubber content makes the rubber lining 2 difficult to tear. The service life of the valve seat is extended, the overall sealing performa...

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Abstract

The invention relates to a valve seat of a double-clip type butterfly valve for a coal cinder pipeline. The valve seat comprises a framework and a rubber liner; a cavity is formed in one surface of the framework; a groove is formed in the cavity; the rubber liner is located inside the cavity and fixed on the framework by use of the groove. The valve seat of the double-clip type butterfly valve for the coal cinder pipeline has the beneficial effects that the existing structure that the valve seat is covered with the rubber liner is broken through, instead, the structure is so designed that the valve seat is covered with the rubber liner, the valve seat framework is made of 153 cast alloy iron instead of common carbon steel so that the corrosion resistance and the wear resistance can be improved, the groove is formed in the framework so that the rubber liner can be prevented from falling, and the rubber liner is made of high-abrasion resistance rubber high in rubber content and is not easy to tear.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a valve seat of a butterfly valve for a clip-on cinder pipeline. Background technique [0002] A large amount of coal ash produced by burning coal in a power plant is discharged into a specific ash store through the ash pump and pipeline. In order to protect the ash pump and prolong its service life, we often add a secondary isolation valve to the ash discharge pipeline. , Wafer butterfly valves are often used because of their simple structure, small size, and easy disassembly and assembly. However, in the process of use, excessive wear of the inlet and outlet edges of the valve seat, peeling off and tearing of the rubber lining and sealing layer often occur, resulting in a short service life, requiring frequent disassembly, emergency repair and replacement. Contents of the invention [0003] The object of the present invention is to provide a wear-resistant and anti-corrosion ...

Claims

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Application Information

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IPC IPC(8): F16K1/42F16K1/226
CPCF16K1/42F16K1/2263
Inventor 陶永红
Owner 江苏明江阀业有限公司
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