Anti-radiation blank flange

A radiation-resistant, blind flange technology, applied in the direction of pipes/pipe joints/fittings, mechanical equipment, pipe components, etc., to meet the blocking requirements, good radiation resistance, and good sealing effect

Inactive Publication Date: 2016-12-14
WUXI SHENYI ANNULAR FORGINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When blind flanges are used in the nuclear industry to block pipelines with nuclear materials inside, the blind flanges are required to have anti-radiation functions, and the existing blind flanges do not have this function.

Method used

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  • Anti-radiation blank flange

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] see figure 1 , the embodiment of the present invention includes:

[0015] A radiation-resistant blind flange, comprising: a flange ring 1 fixed at the end of a pipeline, a solid flange body 2 and a sealing gasket, and a plurality of corresponding bolt holes are provided on a circumference of the solid flange body and the flange ring , there are a plurality of sealing groove rings 3 on the flange ring, the cross section of the plurality of sealing groove rings is saw-toothed, there are a plurality of sealing p...

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Abstract

The invention discloses an anti-radiation blank flange. The anti-radiation blank flange comprises a flange ring fixed to the tail end of a pipeline, a solid flange plate body and a seal gasket. Multiple seal groove rings are arranged on the flange ring. The cross sections of the multiple seal groove rings are each in a zigzag shape. Multiple seal protruding rings are arranged on a solid flange. The cross sections of the multiple seal protruding rings are each in a zigzag shape. A comprehensive anti-radiation protection layer is arranged on the outer end face of the solid flange plate body and comprises a first thin lead plate layer bonded on the outer end face of the solid flange plate body, a first polypropylene plate layer bonded on the outer surface of the first thin lead plate layer, a thin zinc plate layer bonded on the outer surface of the first polypropylene plate layer, a second polypropylene plate layer bonded on the outer surface of the thin zinc layer, and a second thin lead plate layer bonded on the outer surface of the second polypropylene plate layer. By means of the manner mentioned above, the anti-radiation blank flange is good in leakproofness. In addition, the anti-radiation blank flange has a good anti-radiation function and meets the blocking requirement of nuclear material pipelines.

Description

technical field [0001] The invention relates to the technical field of flanges, in particular to a radiation-resistant blind flange. Background technique [0002] Flange is a connection tool, and flange connection refers to a detachable connection in which flanges, gaskets and bolts are connected to each other as a combined sealing structure. Flanges are divided into threaded (screw connection) flanges, welding flanges and clip flanges. Flange connection is widely used in construction industry, urban water supply, boiler pressure vessel, petroleum industry, gas supply, chemical industry, food industry, Fire protection, pharmaceutical industry, power station, water conservancy, HVAC and other industries. Blind flange is a kind of flange, which is generally used to seal the end of the pipe. When blind flanges are used in the nuclear industry to block pipelines with nuclear materials inside, the blind flanges are required to have anti-radiation functions, and the existing bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/115
CPCF16L55/1152
Inventor 沈凡
Owner WUXI SHENYI ANNULAR FORGINGS
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