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Novel regulating valve for coal slurry control

A regulating valve, a new type of technology, applied in the direction of valve details, valve device, valve shell structure, etc., can solve the problems that cannot be overcome, cannot overcome the erosion of coal powder on the valve core, cannot meet the harsh working conditions of coal chemical industry, and achieve the solution of domestic The needs of modernization and the effect of prolonging the service life

Inactive Publication Date: 2014-03-26
WUZHONG INSTR
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the small opening range of the eccentric rotary regulating valve, due to the gap flow, it cannot overcome the erosion of the coal powder on the valve core, nor can it overcome the
As the coal chemical industry requires more and more control valves, the existing structure cannot meet the needs of the harsh coal chemical industry.

Method used

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  • Novel regulating valve for coal slurry control
  • Novel regulating valve for coal slurry control
  • Novel regulating valve for coal slurry control

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Embodiment Construction

[0014] Such as figure 1 , 2 , 3, 4, and 5, the present invention is a novel control valve for coal slurry control, comprising a main shaft 1, a valve body 3, a valve seat and a valve core 2, the upper end of the valve core 2 is connected to the main shaft 1 and its The lower end is connected with the auxiliary shaft, and the auxiliary shaft is installed on the valve body 3, a V-shaped window is opened on the valve core 2, and the top of the V-shaped window is a spherical surface.

[0015] Wherein the inner surface of the outlet of the valve body 3 next to the valve core 2 is provided with a wear-resistant alloy bushing, the wear-resistant alloy bush is YG11 alloy, and the thickness of the alloy is in the range of 5-10mm. The wear-resistant alloy bushing is in the shape of a circular tube, and an inclined surface is provided on the inner wall of the wear-resistant alloy bush near the valve core 2 . In addition, the spool 2 is made of HG11 alloy.

[0016] The working principl...

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Abstract

The invention relates to a novel regulating valve for coal slurry control. The novel regulating valve comprises a main shaft (1), a valve body (3) and a valve element (2), and is characterized in that the upper end of the valve element (2) is connected with the main shaft (1), and the lower end of the valve element (2) is connected with a secondary shaft; the secondary shaft is installed on the valve body (3), a V-shaped window is arranged in the valve element (2), and the top end of the V-shaped window is a spherical surface. After trail, it is proved that through the adoption of the novel regulating valve, the problem of scouring of pulverized coal for a valve cavity and the valve element under a coal chemical industry working condition is solved, the service life of the regulating valve is effectively prolonged, and meanwhile the requirement for localization of the regulating valves for the coal chemical industry is met.

Description

technical field [0001] The invention relates to a novel regulating valve for coal slurry control. Background technique [0002] In the field of valves used in coal chemical industry, coal chemical industry chooses regulating valves, and mostly adopts straight-through regulating valves and eccentric rotary regulating valves. Due to the S-shaped flow channel design of straight-through regulating valves, the erosion of coal powder on the valve cavity is very serious. It is also the current handicap problem. The eccentric rotary control valve cannot overcome the erosion of the valve core due to the gap flow in the small opening range, nor can it overcome it. As the coal chemical industry requires more and more control valves, the existing structure cannot meet the needs of the harsh coal chemical industry. Contents of the invention [0003] The purpose of the present invention is to provide a new regulating valve for coal slurry control, which can not only have the function ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K27/06
CPCF16K5/0605F16K5/0657F16K25/02F16K27/067
Inventor 马玉山郭中山葛涛高强苏海霞常占东
Owner WUZHONG INSTR
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