Exhaust device for construction of upwardly inclined frozen pipe casing and exhaust method for construction of upwardly inclined frozen pipe casing
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An exhaust method and technology of exhaust device, which are applied in the direction of pipes/pipe joints/pipe fittings, infrastructure engineering, pipe components, etc., and can solve problems such as gas storage.
Active Publication Date: 2022-08-02
BEIJING CHINA COAL MINE ENG CO LTD
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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
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Embodiment 1
[0037] like figure 1 and figure 2 As shown in the figure, the upwardly inclined freezing pipe casing is constructed as an exhaust device, including 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 through the first annular blocking 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 sleeve 3 , and the second end of the sleeve 3 passes through the second annular blocking plate 9 and the outer pipe wall of the liquid supply pipe 5 . Seal and fix the connection by welding;
[0042] The liquid return pipe 8 is ...
Embodiment 2
[0046] The method for exhausting the construction of the upwardly inclined frozen pipe casing, using the upwardly inclined freezing pipe casing construction exhaust device of Embodiment 1 to carry out the construction of the upwardly inclined frozen pipe casing, the method of exhausting comprises the following steps:
[0047] A. Preparation of drainage aid: prepare drainage aid for freezing pipe 1 exhaust according to construction requirements;
[0048] B. Installation of check valve 2: Fix check valve 2 on the first end of casing 3;
[0049] C. Installation of the casing 3: The casing 3 is lowered into the freezing tube 1 by means of pushing, and the adjacent two casings 3 are connected by welding;
[0050] D. Sealing treatment: the first annular blocking plate 7 is fixed between the casing 3 and the freezing tube 1, and a first cavity is formed by sealing; the formation of the first cavity can seal the gas accumulated in the freezing tube in the first cavity. In the cavity,...
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Abstract
The invention discloses an exhaust device for the construction of an upwardly inclined frozen pipe casing and an exhaust method for the construction of an upwardly inclined frozen pipe casing. The exhaust device comprises a check valve, a casing, a ball valve, a liquid supply pipe and a liquid return pipe; the one-way valve is fixed Installed on the first end of the casing; the first end of the casing extends into the freezing pipe, and the outer pipe wall of the second end of the casing is sealed and fixedly connected with the second end of the freezing pipe through the first annular blocking plate; the ball valve is fixed It is installed on the outer pipe wall of the second end of the freezing pipe; the first end of the liquid supply pipe extends into the casing, and the second end of the casing is sealed with the outer pipe wall of the liquid supply pipe through the second annular blocking plate Fixed connection. The exhaust method is a method of exhausting the frozen pipe using the above-mentioned exhaust device. The invention injects clear water or cement slurry into the cavity between the casing and the freezing pipe through the ball valve, and the gas in the freezing pipe can be discharged into the casing through the one-way valve under the extrusion of the clear water or the cement slurry, so as to solve the problem of solving the problem. The problem of air trapped at the bottom of the tilting freezing tube.
Description
technical field [0001] The invention relates to the technical field of exhaust gas for freezing pipe casing construction. Specifically, it is an exhaust device for the construction of an upwardly inclined freezing pipe casing and an exhausting method for the construction of an upwardly inclined freezing pipe casing. Background technique [0002] Strata freezing technology is widely used in construction projects that need to strengthen strata. In recent years, stratum freezing technology has been extended from coal mine shaft construction to urban underground engineering construction. According to different construction requirements, the application of up-tilting freezing pipes is becoming more and more extensive. If the length of the frozen tube is long, multiple frozen tubes are usually connected by welding. The brittleness of the frozen tube will increase at low temperature, and the interference of obstacles with uneven density in the formation will make it more stressed....
Claims
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Application Information
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