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Discharge valve for slurry bed residual oil hydrogenation device

A technology of hydrogenation unit and bed residue oil, which is applied in valve unit, valve operation/release unit, lift valve, etc., can solve the problem of affecting the overall working condition, medium retention, and no slurry bed residue oil hydrogenation unit valve and other problems to achieve the effect of ensuring the flow of the medium, preventing the medium from staying, and protecting the packing seal.

Pending Publication Date: 2022-03-01
SUFA TECH IND CNNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is no valve for the slurry bed residual oil hydrogenation unit, which causes the medium to stay in the valve cavity and affects the overall working conditions

Method used

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  • Discharge valve for slurry bed residual oil hydrogenation device
  • Discharge valve for slurry bed residual oil hydrogenation device

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Disclosed is a discharge valve for a slurry bed residual oil hydrogenation unit. The main pipeline of the valve 1 is connected with the valve body by a discharge flange in the middle; the sealing gasket 2 is provided with two seals to improve the sealing performance between the main pipeline and the valve body; Flange connection, and a cemented carbide sealing surface is set at the bottom of the middle cavity channel, and the Y-shaped outlet channel is provided with a flushing port near the middle cavity channel, and connected to the Y-line flushing valve; plunger 4, installed in the middle cavity channel of the valve body Inside, move up and down along the middle cavity channel, the arc shape of the plunger head is the same as the radius of the main pipe, and the head is surfacing with STL hard alloy; the oil scraper ring 5 is placed at the bottom of the packing to prevent the medium residue from entering the packing; the plunger packing The sealing mechanism 6 is load...

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Abstract

The invention belongs to discharge valves for dissimilar materials, and particularly relates to a discharge valve for a slurry bed residual oil hydrogenation device. A discharge valve for a slurry bed residual oil hydrogenation device comprises a valve body communicated with a main pipeline, a valve rod assembly is arranged in the valve body, the valve rod assembly is connected with a manual device at the top end and can be driven by the manual device to move up and down, and the valve body is provided with a hard alloy sealing face at the bottom of a middle cavity channel. A flushing opening is formed in the position, close to the middle cavity channel, of the Y-shaped outlet channel of the valve body, and a Y-shaped flushing valve is arranged at the position. The invention has the advantages that: the medium flows smoothly without residence; hard particles in the medium are prevented from damaging the plunger; medium residual oil is prevented from entering the filler; and reliable sealing of the plunger is ensured.

Description

technical field [0001] The invention belongs to a discharge valve for residual oil hydrogenation and discharge, in particular to a discharge valve for a slurry bed residue hydrogenation device. Background technique [0002] With the improvement of environmental protection requirements and the upgrading of oil products, the refining technology has produced more advanced slurry bed residue hydrogenation after fixed bed residue hydrogenation and ebullating bed residue hydrogenation, and is gradually being applied. Advanced technology is usually accompanied by more severe working conditions, and slurry bed residual oil hydrogenation is no exception. Its process parameters are higher and the working conditions are more severe. If the medium contains hard particles, the medium will produce irreversible solidification when it is cold. [0003] In the prior art, there is no valve for the slurry bed residual oil hydrogenation unit, which causes the medium to stay in the valve cavity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/36F16K1/32F16K27/02F16K31/60F16K41/02
CPCF16K1/36F16K1/32F16K27/02F16K31/60F16K41/02
Inventor 施进伟吴小康虞戈杨雪华柯松林金锴琪
Owner SUFA TECH IND CNNC
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