Sealing device between floating disc and tank wall of external floating roof tank and mounting method of sealing device

A sealing device, floating roof tank technology, applied in packaging, transportation and packaging, containers, etc., can solve problems such as inability to completely eradicate

Active Publication Date: 2015-02-18
CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to reasons such as technology, engineering and construction quality, these two measures cannot be completely resolved. Therefore, the hidden danger of explosion of the sealing ring of the outer floating roof tank has always existed objectively and cannot be completely eradicated.

Method used

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  • Sealing device between floating disc and tank wall of external floating roof tank and mounting method of sealing device
  • Sealing device between floating disc and tank wall of external floating roof tank and mounting method of sealing device
  • Sealing device between floating disc and tank wall of external floating roof tank and mounting method of sealing device

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0032] combine Figure 1 to Figure 3 As shown, a sealing device between the floating plate and the tank wall of an outer floating roof tank includes a floating plate edge plate 1 and a tank wall 2 . A primary sealing component and a secondary sealing component are arranged between the edge plate 1 of the floating plate and the tank wall 2 .

[0033] Wherein, the secondary sealing component is located above the primary sealing component. An oil-gas space 3 is formed between the primary sealing part, the edge plate 1 of the floating plate, the secondary sealing part and the tank wall 2 .

[0034] The primary sealing part can adopt packing type elastic soft seal. The primary sealing part includes a primary sealing tape 4 and a primary sealing filler 5 , and the primary sealing filler 5 is located inside the primary sealing tape 4 . The two ends...

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Abstract

The invention discloses a sealing device between a floating disc and a tank wall of an external floating roof tank. The device comprises an edge plate of a floating disc and the tank wall, wherein a primary sealing part and a secondary sealing part are arranged between the edge plate of the floating disc and the tank wall, and oil and gas spaces are formed among the primary sealing part, the edge plate of the floating disc, the secondary sealing part and the tank wall; the secondary sealing part comprises a secondary sealing rubber gasket, a secondary sealing pressing plate and a secondary sealing membrane, and the secondary sealing membrane is arranged on the surface of the inner side of the secondary sealing pressing plate; filling devices are arranged in the oil and gas spaces, and the filling devices comprise flexible wear-resisting bag belts and bag belt fillers; the flexible wear-resisting bag belts sequentially expend along the edge plate of the floating disc, the upper surface of the primary sealing part, and the tank wall, cavity bodies without oil or gas are formed between the flexible wear-resisting bag belts and the secondary sealing membrane, the bag belt fillers are positioned in the flexible wear-resisting bag belts, the reduction of the oil and gas space between the primary sealing part and the secondary sealing part is facilitated, the oil and gas content in the oil and gas space is reduced, and the harm caused by the blast accident of sealing rings is furthest reduced.

Description

technical field [0001] The invention relates to a sealing device between a floating plate and a tank wall of an outer floating roof tank and an installation method of the sealing device. Background technique [0002] During the design and construction of the external floating roof oil tank, in order to ensure that the floating plate can move up and down flexibly, a certain distance will be kept between the floating plate and the tank wall to form an annular space where the oil surface is exposed. In order to isolate the exposed oil surface in the annular space from contact with the atmosphere and prevent volatilization of oil and gas, a sealing device is installed between the floating plate and the tank wall. [0003] At present, the sealing device of floating roof tanks at home and abroad generally adopts the form of double sealing. The primary seal is used for the direct sealing of the oil surface and is the most important sealing facility. Commonly used primary seals ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D88/50
CPCB65D88/50
Inventor 肖安山郞需庆陶彬厉建祥马自坤杨瑞楼焦士六徐礼义
Owner CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG
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