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Automatic decoking stopcock

An automatic, cock body technology, applied in the direction of cocks, valve details, valve devices, etc. including the cut-off device, can solve problems such as jamming, sealing surface wear, and inappropriateness, so as to prolong service life, prevent high temperature swelling and improve The effect of sealing performance

Inactive Publication Date: 2008-02-27
温州市威驰阀门有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used in coking media in petroleum, chemical and other industries, during the opening and closing process of the valve, the coking material bonded to the surface of the cock body will wear the sealing surface, affecting the sealing performance and service life of the valve.
Moreover, under high temperature conditions, the plug body and the valve body are stuck due to high temperature expansion, and cannot be opened and closed normally, so it is not suitable for high temperature conditions.

Method used

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  • Automatic decoking stopcock

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Embodiment Construction

[0010] The automatic decoking plug valve shown in Figure 1 includes a valve body 8, a valve cover 5, a valve stem 17, a cock body 14, a seal and a mounting part, and the valve body 8 is respectively provided with a cock body at the inlet and outlet channels. 14 The tile-shaped valve seat 15 that cooperates with each other. The edges on both sides of the tile-shaped valve seat 15 are made into a scraper-type structure with acute angles. The spring 25 is a belleville spring. The tile-shaped valve seat 15 has an inner arc that cooperates with the outer cylindrical surface of the cock body 14, and the sharp-angled scrapers on both sides of the seat can scrape off the coke stuck on the surface of the cock body during the opening and closing process of the valve.

[0011] The lower end surface of the cock body 14 is formed with a spherical top block 13, the spherical top block 13 cooperates with the spherical ejector rod 12 below, the convex spherical surface of the spherical top bl...

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Abstract

The present invention relates to one kind of automatically decoking cock valve, which includes one valve body, one valve cover, one valve rod, one cock body, sealing members and installing members. The automatically decoking cock valve features the tile-shaped valve seats matching the cock body set in the inlet passage and the outlet passage of the valve body and with acute edges to form scraper structure, and the spring set between one of the tile-shaped valve seats and the valve body passage. During opening and closing the valve, the scraper structure can eliminate the coking in the surface of the cock body to reduce wear of the sealing surface, raise sealing performance and prolong the service life of the valve. In addition, the spring can avoid high temperature jamming of the cock body. The automatically decoking cock valve is suitable for operation in high temperature, high pressure, high wear and corrosive conditions in petroleum, chemical industry and other industry.

Description

technical field [0001] The invention relates to a valve, in particular to a hard sealing plug valve. The invention is suitable for high temperature, high pressure, abrasive and corrosive working conditions in industries such as petroleum and chemical industry. Background technique [0002] The plug valve has a hard seal and a soft seal structure, the soft seal plug valve is suitable for low temperature, and the hard seal plug valve can be used in high temperature conditions. However, for ordinary hard-sealed plug valves, due to the large contact area between the plug body and the valve body, the friction between the two during the opening and closing process is large, the opening and closing torque is large, and the wear between the sealing surfaces is large. For this reason, the patent No. 002169800 of the hard-sealed self-lubricating plug valve creates a grease injection groove between the sealing tapered hole of the valve body and the surface of the plug body, injects th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/04F16K25/00F16K5/18F16K41/02
Inventor 高飞谢健军贾磊
Owner 温州市威驰阀门有限公司
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