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Fireproofing pipe joint

A technology of pipe joint and refractory layer, applied in the direction of pipe/pipe joint/pipe fitting, pipe protection, sleeve/socket connection, etc., can solve the problems of rising, loss of sealing meaning of pipe joint, inability to achieve sealing effect, etc., to increase the use of effect of life

Inactive Publication Date: 2012-07-25
苏州捷英特管道技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the sealing ring of this kind of pipe joint is made of rubber material, when a fire occurs, the pipe joint is in the fire field, and the surface temperature of the shell rises sharply, which causes the rubber on the inner wall to soften, and the sealing effect cannot be achieved, thus losing the sealing significance of the pipe joint

Method used

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Embodiment Construction

[0017] The present invention In order to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] A preferred embodiment of the present invention is figure 1 The shown fireproof pipe joint includes an open annular casing, on which is provided a fastening device for fastening the annular casing, the fastening device is composed of two bolts 12, which can be adjusted accordingly by adjusting the bolts 12 The size of the annular casing, an integral sealing ring 11 is arranged in the casing, such as figure 2 As shown, a refractory layer 5 is fixedly arranged on the annular shell, and the refractory layer 5 is made of refractory ceramic fibers. Both ends of the refractory layer 5 are fixedly connected to the annular shell by fastening screws (not shown in the figure). A bendable elongated protective cover is fixed on the refractory layer 5 .

[0019] Such as image 3 It is a ...

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Abstract

The invention provides a fireproofing pipe joint, comprising an annular housing with an opening. The housing is provided with a fastening device which is formed by at least one bolt and is used for fastening the annular housing the housing is internally provided with a sealing ring which is an integral sealing ring; a refractory layer is fixedly arranged on the annular housing; and a flexional strip-shaped protection cover is fixed close to the refractory layer. The pipe joint is provided with the refractory layer and the protection cover, so that sealing failure of the pipe joint caused by high temperature during a fire can be avoided, therefore, the fireproofing effect is achieve, and the service life of the pipe joint is prolonged.

Description

technical field [0001] The invention relates to a pipe connection device, in particular to a fireproof pipe joint, which belongs to the technical field of industry. Background technique [0002] In pipeline construction, pipeline connection is a very common application requirement. At present, pipe joints are widely used for pipe connection. [0003] The pipe joints in the prior art generally adopt a monolithic structure, such as disclosed in Chinese patent 200720177569.0, which includes an open annular casing, a sealing ring built in the casing, the outer wall of the sealing ring is close to the inner wall of the casing, and a fastening device is located on the casing. It is used to fasten the shell. When the fastening device is tightened, the gap at the opening of the shell shrinks, so that the shell forms a radially inward clamping force on the sealing ring, so that the shell is tightened, and the sealing ring The inner wall contracts to pinch the outer wall of the pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L21/06F16L57/04
Inventor 凌坚昌
Owner 苏州捷英特管道技术有限公司
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