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Updip freezing pipe sleeve construction exhaust device and updip freezing pipe sleeve construction exhaust method

A technology of exhaust device and exhaust method, applied in the direction of pipes/pipe joints/pipes, infrastructure engineering, pipe components, etc., can solve problems such as gas storage

Active Publication Date: 2021-08-06
BEIJING CHINA COAL MINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the technical problem to be solved by the present invention is to provide an exhaust device for casing construction of an upwardly inclined freezing pipe and a method for exhausting the construction of casing of an upwardly inclined freezing pipe when the casing is broken when the freezing pipe is broken, so as to solve the problem of the bottom of the upwardly inclined freezing pipe. The problem of gas storage, so as to avoid the hidden danger of construction safety caused by the storage of gas in the freezing pipe

Method used

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  • Updip freezing pipe sleeve construction exhaust device and updip freezing pipe sleeve construction exhaust method
  • Updip freezing pipe sleeve construction exhaust device and updip freezing pipe sleeve construction exhaust method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 and figure 2 As shown, the exhaust device for the casing construction of the upwardly inclined freezing pipe includes a one-way valve 2, a casing 3, a ball valve 4, a liquid supply pipe 5 and a liquid return pipe 8;

[0038] The one-way valve 2 is fixedly installed on the first end of the sleeve 3;

[0039] The first end of the sleeve 3 extends into the freezing tube 1, and the outer wall of the second end of the sleeve 3 is sealed with the second end of the freezing tube 1 by a first annular sealing plate 7 fixed connection;

[0040] The ball valve 4 is fixedly installed on the outer pipe wall of the second end of the freezing pipe 1; Pass.

[0041] The first end of the liquid supply pipe 5 extends into the casing 3, and the second end nozzle of the casing 3 passes through the second annular sealing plate 9 and the outer wall of the liquid supply pipe 5. The connection is sealed and fixed by welding;

[0042] The liquid return pipe 8 is provided...

Embodiment 2

[0046] The exhaust method for the casing construction of the upwardly inclined frozen pipe is to use the exhaust device for the casing construction of the upwardly inclined frozen pipe of Embodiment 1 to carry out the method for exhausting the construction of the casing for the upwardly inclined frozen pipe, comprising the following steps:

[0047] A. Preparation of auxiliary drainage: prepare auxiliary drainage for freezing pipe 1 exhaust according to construction requirements;

[0048] B. Installation of one-way valve 2: fixedly install one-way valve 2 on the first end of casing 3;

[0049] C, the installation of the sleeve pipe 3: the sleeve pipe 3 is lowered into the freezing pipe 1 by means of pushing, and two adjacent sleeve pipes 3 are connected by welding;

[0050] D. Sealing treatment: fix the first annular sealing plate 7 between the sleeve pipe 3 and the freezing tube 1, and seal to form the first cavity; the formation of the first cavity can seal the gas accumulate...

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Abstract

The invention discloses an updip freezing pipe sleeve construction exhaust device and an updip freezing pipe sleeve construction exhaust method. The exhaust device comprises a one-way valve, a sleeve, a ball valve, a liquid supply pipe and a liquid return pipe. The one-way valve is fixedly mounted at the first end of the sleeve; the first end of the sleeve extends into a freezing pipe, and the outer pipe wall of the second end of the sleeve is fixedly connected with the second end of the freezing pipe in a sealed manner through a first annular blocking plate; the ball valve is fixedly mounted on the outer pipe wall of the second end of the freezing pipe; and the first end of the liquid supply pipe extends into the sleeve, and a pipe opening in the second end of the sleeve is fixedly connected with the outer pipe wall of the liquid supply pipe in a sealed manner through a second annular plugging plate. The exhaust method is a method for exhausting the freezing pipe by using the exhaust device. Clear water or cement grout is injected into a cavity between the sleeve and the freezing pipe through the ball valve, and gas in the freezing pipe can be discharged into the sleeve through the one-way valve under extrusion of the clear water or the cement grout, so that the problem that gas is stored at the bottom of the updip freezing pipe is solved.

Description

technical field [0001] The invention relates to the technical field of freezing pipe casing construction exhaust. Specifically, it relates to an exhaust device for the casing construction of an upwardly inclined frozen pipe and an exhaust method for the construction of an upwardly inclined frozen pipe casing. Background technique [0002] Stratum freezing technology is widely used in the construction of construction projects that need to strengthen the stratum. In recent years, the stratum freezing technology has been extended from coal mine shaft construction to the field of urban underground engineering construction. According to different construction needs, the application of up-tilt freezing pipes is becoming more and more extensive. If the length of the freezing pipe is long, usually multiple freezing pipes are connected by welding, the brittleness of the freezing pipe will be enhanced at low temperature, coupled with the interference of obstacles with uneven density ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/07F16L55/165E02D3/115
CPCF16L55/07F16L55/1657E02D3/115
Inventor 高伟孔令辉李宁付财杨志刚张洪波孙佳董世卓
Owner BEIJING CHINA COAL MINE ENG CO LTD
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