Device, system and method for repairing underground pipeline of trenchless pneumatic cracking pipe

A technology of pneumatic cracking pipes and underground pipes, which is applied in the sewer pipe system, waterway system, pipe laying and maintenance, etc., to reduce the amount of excavation, save costs and improve work efficiency

Active Publication Date: 2013-01-23
北京隆科兴科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the existing defects and problems that two working pits must be excavated when the underground pipeline is replaced in situ, the purpose of the emb

Method used

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  • Device, system and method for repairing underground pipeline of trenchless pneumatic cracking pipe
  • Device, system and method for repairing underground pipeline of trenchless pneumatic cracking pipe
  • Device, system and method for repairing underground pipeline of trenchless pneumatic cracking pipe

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Experimental program
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Effect test

Embodiment 1

[0052] The first embodiment of the present invention proposes a device for repairing underground pipelines with non-excavation pneumatic cracked pipes, the structure of which is as follows Figure 2 ~ Figure 6 Shown, comprise split pipe head 16, and this split pipe head 16 is provided with conical head and a tail portion that is used to connect replacement pipe 13, and has a through hole; This through hole center line and described tapered head center line Coincident, the front columnar through hole is used to install the front conversion joint 6, and the tail tapered through hole is used to connect the pipe rammer 11.

[0053] Such as Figure 4 As shown, the front adapter 6 is inserted into the opening, and is connected to one end of the regulator 15 through a connecting pin 7 ; and the other end of the regulator 15 is connected to the rear adapter 9 . refer to figure 1 as shown.

[0054] Such as Figure 4 As shown, the rear conversion joint 9 is connected to the replacem...

Embodiment 2

[0057] The second embodiment of the present invention proposes a system for repairing underground pipelines with non-excavation pneumatic cracked pipes, the structure of which is as follows figure 1 As shown, it includes the split pipe head 16 as described in the aforementioned first embodiment, and the excavated working pit 4 . Existing wells 5 and working pits 4 can be used in the embodiment of the present invention. Wherein, since existing underground pipelines have been provided with wells, such as sewage wells of sewer pipelines and the like. The present invention utilizes existing well 5 to cooperate with the working pit 4 of digging again to carry out work. Of course, it is also possible to re-excavate an existing well 5 to cooperate with the working pit 4, which is not limited in the present invention.

[0058]In order to make the device of the first embodiment work, the length of the working pit 4 should be at least greater than the length of the replacement pipe 13...

Embodiment 3

[0064] The third embodiment of the present invention proposes a method for repairing underground pipelines using the aforementioned trenchless pneumatic cracking pipe repairing device and system, including:

[0065] Step 1. Excavate the working pit 4 and support the working pit 4; fix the pulley block 1 in the existing well 5:

[0066] Step 2. Dredge the drainage pipe and determine whether the drainage pipe is blocked. If so, use a drilling rig to clean the pipe, and use the drilling rig to introduce the traction rope into the working pit 4; otherwise, directly use the rope guide to lay the traction rope;

[0067] Step 3. Connect the split pipe head 16 with the front conversion joint 6 in the working pit 4, and connect with the replacement pipe 13 and the pipe rammer 11; the specific connection method can be seen in the first embodiment, and will not be repeated here;

[0068] Step 4, start the hoist 2 and the air compressor 3; the traction rope of the hoist 2 can play a guidi...

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Abstract

The embodiment of the invention provides a device, a system and a method for repairing an underground pipeline of a trenchless pneumatic cracking pipe. The system comprises an existing well and a working pit, wherein the existing well is provided with a pulley group and a winch; the winch is connected with a cracking pipe head through a traction device; the traction device is provided with front and back steering connectors, a pin, an adjusting device and a bolt; and the working pit is externally provided with an air compressor to drive a pipe tampering machine. The cracking pipe head is provided with a tapered head and a tail part for connecting with a replacing pipe, and is provided with a through hole; the middle line of the through hole is overlapped with the middle line of the tapered head; a front columnar through hole is used for mounting the front steering connector; a tail tapered through hole is used for connecting the pipe tampering machine; the cracking pipe head is provided with the tapered head and an expansion cutter is arranged on the outer surface; and the outer diameter of the cracking pipe head formed by the expansion cutter is greater than the inner pipe of a waste pipe to propel the expanded and cracked waste pipe. The whole process ingeniously utilizes the returning function of the pipe tampering machine under the condition that one pit corresponds to one well, and a receiving pit is replaced by the existing well. Therefore, the digging amount can be reduced so that the working efficiency is improved and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a device, system and method for repairing underground pipelines with non-excavation pneumatic cracked pipes. The invention can be applied to non-excavation pipeline replacement in municipal engineering, so as to replace underground pipelines. Background technique [0002] In the field of building technology, it is very difficult to replace pipes buried deep in the ground. Taking drainage pipes as an example, the existing drainage pipe replacement technology generally uses the split pipe method; the split pipe method can be divided into static pressure split pipe and pneumatic split pipe. [0003] Static fracturing is the process of fracturing old pipes by applying static pressure on the cracking pipe head. Specifically include: using steel cables or drill pipes to pass through the old pipeline and connect to the front end of the split pipe head to apply static pressure, so...

Claims

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Application Information

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IPC IPC(8): F16L1/028E03F3/06
Inventor 王远峰张春
Owner 北京隆科兴科技集团股份有限公司
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