Standby closing pipe for emergency maintaining of prestress steel cylinder concrete pipe line

A concrete pipe and prestressed steel technology, applied in the field of maintenance pipes, can solve the problems of easy leakage of flange joints, high installation requirements, complicated installation, etc., and achieve the effects of less joints, less leakage, and long service life.

Pending Publication Date: 2018-06-22
无锡华毅管道有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the emergency repair pipe is divided into three sections, the installation is complicated, the installation requirements are high, and there are many joints, especially the flange joints are prone to leakage

Method used

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  • Standby closing pipe for emergency maintaining of prestress steel cylinder concrete pipe line
  • Standby closing pipe for emergency maintaining of prestress steel cylinder concrete pipe line
  • Standby closing pipe for emergency maintaining of prestress steel cylinder concrete pipe line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be further described now in conjunction with accompanying drawing.

[0041] Such as figure 1 , figure 2 with image 3 As shown, the prestressed steel tube concrete pipe pipeline emergency repair standby closing pipe, including fixed pipe 1, telescopic pipe 2 and telescopic device; , A sealing ring 4 is installed between the telescopic tube 2 and the fixed tube 1. The total length of the extension tube 2 is exactly the length of the standard prestressed steel tube concrete tube. When the expansion tube 2 is retracted, it is convenient to place the spare closing tube for emergency repair of the prestressed steel tube concrete tube pipeline in the middle of the prestressed steel tube concrete pipeline. .

[0042] The end of the telescopic tube 2 away from the fixed tube 1 is provided with a socket steel ring 21 . The other end of the fixed pipe 1 is provided with a socket steel ring 11, and an O-shaped sealing ring 12 is housed on the socke...

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PUM

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Abstract

The invention relates to a maintaining pipe, in particular to a standby closing pipe for emergency maintaining of a prestress steel cylinder concrete pipe line. The standby closing pipe for emergencymaintaining of the prestress steel cylinder concrete pipe line comprises a fixing pipe, an extending and retracting pipe and an extending and retracting device. The extending and retracting pipe is movably inserted into one end of the fixing pipe. The extending and retracting pipe is connected with the fixing pipe through the extending and retracting device. A sealing ring is arranged between theextending and retracting pipe and the fixing pipe. The end, far away from the fixing pipe, of the extending and retracting pipe is provided with a bellmouth steel ring. The other end of the fixing pipe is provided with an insertion opening steel ring, and the insertion opening steel ring is provided with an o-shaped sealing ring. The standby closing pipe for emergency maintaining of the prestresssteel cylinder concrete pipe line can rapidly maintain an underground damaged prestress steel cylinder concrete pipe, labor and time are saved, the maintained prestress steel cylinder concrete pipe isresistant to pressure and corrosion and long in service just like the original prestress steel cylinder concrete pipe line, the number of joints is small, sealing is good, and leakage is not prone tooccurring.

Description

technical field [0001] The invention relates to a maintenance pipe, in particular to a standby closing pipe for emergency repair of prestressed steel cylinder concrete pipes and pipelines. Background technique [0002] Prestressed steel cylinder concrete pipes are widely used in large and medium-sized water diversion, water supply, sewage and other water transfer projects. Due to human factors such as rolling of large-tonnage vehicles, improper excavation of engineering construction, and natural disasters such as earthquakes, it will cause buried in the ground. Damage to local joints of the underlying prestressed steel cylinder concrete tube. Since the prestressed steel cylinder rod concrete pipes are connected one by one in the form of sockets, it is impossible to replace a same prestressed steel cylinder concrete pipe after a certain section is damaged, and the existing method Can only go to the site steel plate welding. Due to the poor environment of on-site steel plate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L25/10F16L1/036
CPCF16L25/10F16L1/036
Inventor 吴悦人朱磊陶哲峰龚斌
Owner 无锡华毅管道有限公司
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