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Axial locking joint of glass reinforced plastic pipeline

A technology of axial locking and fiberglass, which is applied in the direction of pipeline connection arrangement, pipe/pipe joint/fitting, mechanical equipment, etc., can solve the problems of leakage, high probability of joint leakage, and affecting the service life of pipelines, etc., to reduce leakage Leakage probability, reduced construction costs and man-hours, and quick installation

Inactive Publication Date: 2012-11-28
宁夏青龙塑料管材有限公司
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AI Technical Summary

Problems solved by technology

[0002] The effective length of a single FRP pipeline is 12m. When installing long-distance pipelines, pipeline joints are usually used for connection, which is prone to leakage.
In the prior art, there are two types of joints for winding FRP pipes: axial restraint and non-axial restraint. Generally, the commonly used axial restraint joint is: double O-ring connection, but in the actual construction and installation process, this kind of Axially restrained connection joints require the cooperation of thrust piers and other auxiliary facilities. Due to terrain, construction quality and external natural factors, the joint leakage probability is relatively high, which seriously affects the actual service life of the pipeline

Method used

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  • Axial locking joint of glass reinforced plastic pipeline

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Embodiment Construction

[0012] The fiberglass pipe axial locking joint of the present invention includes a socket 1 and a socket 2, and two O-shaped sealing rings 3 are arranged between the socket 1 and the socket 2 . The corresponding position of the socket 1 (that is, between the two O-rings 3) is provided with a glue hole 4. The cross section of the glue hole 4 is circular or rectangular, and the side of the socket is rounded. The inner wall of the socket of the glue hole 4 The side is a circular arc transition. Resin material is poured into the glue filling hole 4 to form a locking sealing ring 5 .

[0013] The resin is an unsaturated polyester resin or a vinyl series resin added with quartz powder, and the bonding strength between the resin and the socket can withstand the axial tension of the FRP pipe and play an anti-seepage role.

[0014] In order to realize that the glass steel pipe socket with locking device can fully bear the axial stress, the socket and socket section of the pipe are str...

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Abstract

The invention relates to an axial locking joint of a glass reinforced plastic pipeline. The axial locking joint comprises a bell mouth and a spigot and is characterized in that two O-shaped sealing rings are installed between the bell mouth and the spigot; a glue filling hole is formed on the bell mouth; and resin is filled in the glue filing hole to form a locking sealing ring. According to the invention, by utilizing a resin material which can be rapidly solidified as the locking sealing ring, rapid installation of the glass reinforced plastic pipeline can be realized; simultaneously, axial tension of the glass reinforced plastic pipeline can be born because of bonding strength among the resin, the bell mouth and the spigot; the leakage prevention role can be played; therefore, the axial locking joint has axial constraint; the leakage probability of the pipeline can be reduced; unnecessary thrust mounds can be omitted; and the construction cost and the working times of the pipeline can be reduced; and therefore, the glass reinforced plastic pipeline is applied to being installed in geological variable areas.

Description

Technical field [0001] The invention relates to an axial locking device for connecting glass-steel pipes, in particular to an axial locking joint of glass-steel pipes. Background technique [0002] The effective length of a single FRP pipeline is 12m. When installing long-distance pipelines, pipeline joints are usually used to connect them, which is prone to leakage. In the prior art, there are two types of joints for winding FRP pipes: axial restraint and non-axial restraint. Generally, the commonly used axial restraint joint is: double O-ring connection, but in the actual construction and installation process, this kind of Axially restrained connection joints require the cooperation of thrust piers and other auxiliary facilities. Due to terrain, construction quality and external natural factors, the joint leakage probability is relatively high, which seriously affects the actual service life of the pipeline. Contents of the invention [0003] In order to overcome the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/02
Inventor 马金马建民范永兵李晓轩司登国
Owner 宁夏青龙塑料管材有限公司
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