Anti-coking device and gas delivery pipeline for large gate valve

An anti-coking and gate valve technology, applied in valve devices, valve heating/cooling devices, valve details, etc., can solve the problem of pipeline valves not being able to switch normally, and achieve the effect of flexible action and simple material selection.

Active Publication Date: 2019-02-01
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, one of the purposes of the present invention is to solve the problem that pipeline valves cannot be opened and closed normally after being coked.

Method used

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  • Anti-coking device and gas delivery pipeline for large gate valve
  • Anti-coking device and gas delivery pipeline for large gate valve
  • Anti-coking device and gas delivery pipeline for large gate valve

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Embodiment Construction

[0027] Hereinafter, the anti-coking device of the gas delivery pipeline and its gate valve according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0028] According to the structural form of the gate valve body and the actual situation, the applicant found that the jam caused by tar accumulation in the valve plate and the valve plate running guide groove was the main reason why the valve could not operate. In order to prevent the crystallization and coking of the medium in the valve gas from entering the guide groove of the valve plate and affecting the normal opening of the valve, the present invention provides an anti-coking device for a large gate valve. The heating unit is used to heat the guide grooves on both sides of the gate valve body. The invention uses a simple combined heating device to heat and soften the focal points that are prone to coke, that is, to heat only the valve plate guide g...

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Abstract

The invention discloses an anti-coking device of a large gate valve, and a gas conveying pipeline. The anti-coking device comprises a heating unit arranged around guide groove parts at the two sides of a valve body of the gate valve and heating the guide groove parts at the two sides of the valve body of the gate valve. The gas conveying pipeline comprises a pipeline conveying coal gas, a gate valve and the anti-coking device of the large gate valve, which is disclosed by the invention. According to the anti-coking device disclosed by the invention, flexible action of a valve plate is ensured after tar is softened and flows automatically through heating the guide groove parts at the two sides of the valve body, thus the problem that a pipeline valve cannot be normally opened and closed after coke accumulation is solved. The anti-coking device disclosed by the invention is in the form of a detachable assembled structure and simple in material selection, and meets heating of coal gas gate valves with various specifications and without heat-insulation sleeves through a combination capable of changing the different length dimensions of connection tubes.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to a device for softening the coking of a large gate valve without heating and heat preservation jacket itself and a gas delivery pipeline. Background technique [0002] In the process of industrial production, gate valves are often used to control the gas transmission in coke oven gas pipelines, and the valve body is large in size. Due to the large size of the valve body, considering the manufacturing process and installation cost, most valves do not have heating and heat preservation jackets. For gate valves, because the gate valve has not been operated for a period of time, the guide groove of the valve plate in the valve body will be severely hardened due to coke deposits, which will cause difficulty in opening and closing the valve. The heat of the steam diffuses greatly, has no direction, the heating time is long, and the effect is not obvious. Contents of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K49/00
CPCF16K49/005
Inventor 朱建华
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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