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Sealing cover sealing device of storage tank

A sealing device and storage tank technology, which is applied in the field of oil and gas storage tank sealing, can solve problems such as sealing ring fire, sealing ring burning, and insufficient air tightness, and achieve the effects of enhanced sealing performance, easy installation, and simple structure

Active Publication Date: 2018-06-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many existing sealing rings, due to insufficient air tightness, after a period of use, there is a gap between the sealing ring and the tank wall, resulting in oil and gas leakage
Floating roof storage tanks are prone to flash explosion accidents after encountering lightning strikes and open flames due to oil and gas leakage at the sealing ring, causing the sealing ring to be burned and causing a partial or overall sealing ring fire

Method used

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  • Sealing cover sealing device of storage tank

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] Such as figure 1 As shown, the cover sealing device for a storage tank according to the present invention includes a first sealing assembly 30 located in the gap between the tank wall 8 and the cover 9 . The first sealing assembly 30 includes a sealing bag 7 connected to the cover 9 and a flexible sealing ring 6 accommodated in the sealing bag 7, the flexible sealing ring 6 and the tank wall 8 and the flexible sealing ring Extrusion exists between 6 and cover 9.

[0045]In the process of oil and gas extraction, processing, application, storage and sales, it is inevitable to contain or store volatile petroleum products such as crude oil, gasoline or kerosene in storage tanks. For flammable and explosive products, the tightness of the storage tank is extremely important. For example, it is often faced with the problem of how to improve the tightness between the...

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Abstract

The invention provides a sealing cover sealing device of a storage tank. The device comprises a first sealing component arranged between a tank wall of the storage tank and a sealing cover, and the first sealing assembly comprises a sealing bag connected with the sealing cover and a flexible sealing ring contained in the sealing bag; an extrusion function exists between the flexible sealing ring and the tank wall and between the flexible sealing ring and the sealing cover. According to a preferred embodiment, the sealing device further comprises a second sealing component, the second sealing component comprises an annular rigid body and a filling bag, wherein the lower edge of the annular rigid body is connected with the sealing cover, the upper edge of the annular rigid body is attached to the tank wall of the storage tank, and the filling bag which is connected to the inner side face of the rigid body and contains the flame-retardant particles. The invention particularly provides a floating disc sealing device of the floating roof storage tank. The sealing device has the advantages that the sealing performance is improved, and the automatic fire extinguishing function can be achieved.

Description

technical field [0001] The invention relates to the technical field of oil and gas storage tank sealing, in particular to a cover sealing device for a storage tank. Background technique [0002] Volatile petroleum products such as crude oil, gasoline or kerosene are usually stored in tanks such as internal floating roof tanks and external floating roof tanks. Oil and gas products are flammable and explosive products, so the sealing of storage tanks is particularly important. Most of the current sealing rings use soft seals, and a few use liquid-filled seals. For many existing sealing rings, due to insufficient air tightness, after a period of use, there is a gap between the sealing ring and the tank wall, resulting in oil and gas leakage. Due to oil and gas leakage at the sealing ring of floating roof storage tanks, flash explosion accidents are prone to occur after lightning strikes and open flames, causing the sealing ring to be burned and causing a partial or overall se...

Claims

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Application Information

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IPC IPC(8): B65D88/50B65D90/22
CPCB65D88/50B65D90/22
Inventor 郎需庆牟小冬吴京峰尚祖政谈龙妹于辉
Owner CHINA PETROLEUM & CHEM CORP
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