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Special check valve for pneumatic material conveying

A check valve and material technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problems of dust sticking, check valve leakage, loose closing, etc., achieve long service life, good sealing, avoid The effect of jam

Active Publication Date: 2018-02-16
SHANGHAI LONGMAI MASCH ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual application process, because the working conditions of the pneumatic material conveying system are very harsh, the check valve of the entire pneumatic conveying system often has prominent problems such as leakage, lax closure, and dust jamming. In addition, some such as pneumatic ash removal The system and other components also require the check valve to have the characteristics of wear resistance and high temperature resistance.

Method used

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  • Special check valve for pneumatic material conveying

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Embodiment Construction

[0016] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0017] see figure 1 , special check valve for pneumatic material conveying system, including gland 1, valve body 2, gasket 1 3, gasket 2 4, valve core 5, sealing sleeve 6; gland 1 and valve body 2 are connected by threads, The two are tightly engaged to ensure that the valve will not let the medium leak out through the valve stem, and ensure that the valve achieves zero leakage within the design pressure range; the valve body 2 is made of wear-resistant metal material, and the valve body 2 is equipped with Valve core 5, sealing sleeve 6, gasket one 3, gasket two 4; valve core 5 is divided into a valve head and a valve stem, the valve stem is provided with a cavity in the axial direction, and 4 holes of the same size are opened in the radial dire...

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Abstract

A check valve special for pneumatic material conveying comprises a gland (1), a valve body (2), a first gasket (3), a second gasket (4), a valve element (5) and a sealing cover (6). The gland (1) and the valve body (2) are connected through threads. The valve element (5), the sealing cover (6), the first gasket (3) and the second gasket (4) are arranged inside the valve body (2). The valve element (5) comprises a valve head and a valve rod. A cavity is axially arranged in the valve rod. Four identical holes are formed in the radial direction of the valve rod. The holes are communicated with the cavity. The valve rod is tightly sleeved with the sealing cover (6). According to the check valve, the problems that the valve is blocked and media flow backwards are effectively solved, and meanwhile the check valve further has the advantages of being resistant to corrosion and high temperature, good in sealing performance, low in fault rate, long in service life and the like.

Description

technical field [0001] The invention relates to a special check valve for pneumatic material transportation, and in particular discloses a special check valve for pneumatic material transportation, which is applied to pneumatic ash removal systems such as power plants, and is also suitable for pneumatic conveying systems in metallurgy, chemical industry, cement and other industries. Background technique [0002] As we all know, pneumatic material conveying system has a very wide range of applications in metallurgy, chemical industry, cement, machinery manufacturing and other fields at home and abroad. [0003] At present, the special check valve for pneumatic material conveying is widely used in the pneumatic material conveying system at home and abroad. This kind of check valve has the characteristics of high efficiency, simple overall structure, convenient operation and long service life. However, in the actual application process, because the working conditions of the pne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/14
CPCF16K15/148
Inventor 颜常柏李辉
Owner SHANGHAI LONGMAI MASCH ENG CO LTD
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