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Air seal offset type bell valve

An offset, air-sealing technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of valve plate sealing surface wear, uneven force on the valve plate, short service life, etc., to ensure cleanliness , The effect of quick opening and closing action and long service life

Active Publication Date: 2014-03-19
MCC CAPITAL ENGINEERING & RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the valve plate is in contact with the hard sealing ring or soft sealing ring connected to the valve body, it is easy to cause uneven force around the valve plate, resulting in a gap between the valve plate and the valve body; Powdery medium is easy to remain in the gap between the valve plate and the hard seal ring or soft seal ring, which will easily cause the sealing surface of the valve plate to wear, resulting in defects such as poor sealing and short service life.

Method used

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  • Air seal offset type bell valve
  • Air seal offset type bell valve
  • Air seal offset type bell valve

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Such as figure 1 , 2 As shown, the present invention provides a gas-sealed offset bell valve, which includes a valve body 1, a valve plate 2 and an inflatable sealing ring 3, wherein: the valve body 1 has an inlet 11 and an outlet 12, and the valve A rotating shaft 13 is pierced in the body 1, and a crank rod 14 is connected to the rotating shaft 13, and a buckle ring 15 is connected to the valve body wall outside the inlet 11; the valve plate 2 is connecte...

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Abstract

The invention provides an air seal offset type bell valve which comprises a valve body, a valve plate and an inflation seal ring, wherein the valve body is provided with a feed opening and a discharge opening, a rotating shaft is penetrated in the valve body, a crank shaft rod is connected onto the rotating shaft, and a buckle ring is connected to a wall of the valve body outside the feed opening; the valve plate is connected onto the crank shaft rod, and a valve plate cover is arranged at the feed opening in a covering manner; and the inflation seal ring is provided with an inflation cavity, and the inflation seal ring is arranged on the buckle ring in a sleeving manner. According to the air seal offset type bell valve, the inflation seal ring can be contacted sufficiently with the valve plate after being inflated, so that a good sealing effect between the valve plate and the feed opening of the valve body is guaranteed.

Description

technical field [0001] The invention relates to a bias bell valve, in particular to a gas seal bias bell valve used in the field of development and research of blast furnace coal injection equipment. Background technique [0002] At present, offset bell valves are widely used in the transportation of granular coal powder in iron and steel, metallurgy, and thermal power plants to cut off the medium flow and seal. The offset bell valve requires good sealing and durability. [0003] The existing offset bell valve mainly uses a hard sealing ring or a soft sealing ring to seal the gap between the valve plate and the valve body. After the valve plate is in contact with the hard sealing ring or soft sealing ring connected to the valve body, it is easy to cause uneven force around the valve plate, resulting in a gap between the valve plate and the valve body; The powdery medium is easy to remain in the gap between the valve plate and the hard or soft sealing ring, which will easil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/20
CPCF16K1/20F16K1/2057F16K27/0227F16K31/122
Inventor 叶果赵利明王艳民刘颖何锋锋殷宝铎
Owner MCC CAPITAL ENGINEERING & RESEARCH
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