Large-pipe-diameter pipeline hot melting inner supporting tool
A large pipe diameter, pipe support technology, applied in the direction of pipeline protection, pipeline connection layout, pipe/pipe joint/pipe fittings, etc., can solve the problems of weak connection, large fastening force, deformation of pipe joints, etc., and improve the first-time acceptance The effect of quality pass rate
Pending Publication Date: 2020-09-08
CHINA 22MCC GROUP CORP
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Problems solved by technology
In the process of hot-melt connection, external hoops are used for reinforcement, and the fastening force of the hoop is not easy to control. If the fastening force is too small, the connection may not be firm; but if the fastening force is too large, during the heating process, it may Causes deformation of the pipe interface
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation. It should be understood that the following description is only used to clearly illustrate the present invention, not to limit it.
[0012] refer to figure 1 , shows a large-diameter pipeline hot-melt internal support tool. The outermost layer of the support tool is a support with a circular outer profile, which is made of a backplane support 1 and a tube support 2 . The backplane support 1 is obtained by bending a steel plate with a thickness of 2 mm and a width of 100 mm into a circle with an opening. The pipe support 2 is obtained by bending a round steel with a diameter of Φ25 into a circle with a section of opening. The inner wall of the backplane support 1 coincides with the outer wall of the pipe support 2, and the openings of the two supports have the same radian. The backplane support 1 is welded to the outer wall of the tube suppo...
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The invention provides a large-pipe-diameter pipeline hot melting inner supporting tool which comprises a supporting part. The outer outline of the supporting part is round. An opening is formed in the supporting part, inclined strut parts are symmetrically arranged on the inner walls of the two sides of the opening of the supporting part, and a telescopic adjusting part is connected with the ends, close to the opening, of the two inclined strut parts and comprises a right-handed and left-handed screw sleeve and screws which are arranged at the two ends of the right-handed and left-handed screw sleeve and are in screwed connection with the right-handed and left-handed screw sleeve. When the supporting tool fastens a pipeline joint on an outer hoop, proper supporting force can be provided from the interior, the problem that hoop fastening force is hard to control and consequently connecting quality is influenced is avoided, and the one-time acceptance inspection quality passing rate ofhot melting connection is improved.
Description
technical field [0001] The invention relates to the fields of municipal and construction engineering, in particular to a hot-melt internal support tool for large-diameter pipelines, which is used to support the pipeline from the inside of the pipeline during pipeline hot-melt construction. Background technique [0002] At this stage, in the construction of large-diameter (≥1000mm) HDPE and other pipelines in municipal engineering, the connection between pipeline interfaces mainly adopts the mainstream hot-melt connection method. The specific method is to pre-embed resistance wires at the pipeline interfaces, After the interface is connected, the resistance wire is heated to promote the melting connection at the interface of the pipeline. In the process of hot-melt connection, external hoops are used for reinforcement, and the fastening force of the hoop is not easy to control. If the fastening force is too small, the connection may not be firm; but if the fastening force is ...
Claims
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IPC IPC(8): F16L47/02F16L57/00
CPCF16L47/02F16L57/00
Inventor 隋玉朋曹同慧张长杨
Owner CHINA 22MCC GROUP CORP