Special pressure test short pipe for pipe gallery pipeline

Abstract

The utility model discloses a special pressure test short pipe for a pipe gallery pipeline, which comprises a short pipe body and a bypass valve, a blind plate is mounted in the short pipe body, two exhaust pipes are mounted at the top of the short pipe body, and an exhaust valve is mounted at the top of each exhaust pipe; two pressure gauges are mounted at the top of the short pipe body; according to the utility model, the short pipe body, the exhaust pipe, the water pipe and the bypass pipe are arranged and are integrally assembled in a welding manner, so that the trouble of assembly is saved, the device can be conveniently and directly connected with a pipeline to be subjected to pressure test, and the pipeline pressure test is quick, simple and convenient; construction and pressure testing can be conducted in a crossed mode with one pressure testing section as the period, the working face is expanded, the installation speed is increased, rapid installation and pressure testing of the pipelines in the pipe gallery are achieved, the construction period is shortened, and construction is convenient.

Description

Technical Field

[0001] The utility model specifically relates to the technical field related to pipe gallery engineering, in particular to a special short pressure test pipe for pipe gallery pipelines. Background Art

[0002] Pipeline gallery is the abbreviation of urban underground pipeline comprehensive corridor. Pipeline gallery project refers to the infrastructure newly built or renovated underground to accommodate municipal pipelines, generally including power, communication, water supply, drainage, gas and other pipelines. These pipelines are centrally arranged in the pipeline gallery to form a unified and centralized installation space, which facilitates unified planning, design, construction and maintenance. During the construction of the pipeline gallery project, it is often necessary to perform pressure testing on the completed pipelines. Since the pipeline gallery project has many pipeline systems and large pipe diameters, the water and drainage volume required for the pressure test are large. Therefore, during the pipeline pressure test process, the pipeline test pressure needs to be selected according to the pressure level of the pipeline, and pressure test accessories such as pressure gauges, exhaust valves, drain valves, and blind plates are required during the pressure test.

[0003] However, the test components currently used are usually low in integration. During the test, the pressure test accessories need to be welded and assembled with the pipeline before water filling and pressure testing are carried out. After the pipeline pressure test is completed, it is necessary to cut and dismantle it after the water is drained, and then re-engage in the pressure test of other pipeline systems. Therefore, the work needs to be repeated many times, the pipeline pressure test takes a long time, wastes manpower, and is inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a special short pressure test tube for pipelines in the pipeline corridor, so as to solve the problems proposed in the above background technology that the currently used test components have low integration, need to be cut and disassembled many times during use, and thus need to repeat the work many times, the pipeline pressure test takes a long time, wastes manpower, and is inefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The pipeline test short pipe for the pipe gallery includes a short pipe body and a bypass valve. A blind plate is installed inside the short pipe body, and two exhaust pipes are installed on the top of the short pipe body. At the same time, an exhaust valve is installed on the top of each exhaust pipe; two pressure gauges are installed on the top of the short pipe body;

[0007] As a further solution of the present invention: two water pipes are installed at the bottom of the short pipe body, and a first control valve is installed at the bottom of each water pipe;

[0008] As a further solution of the present invention: two bypass pipes are installed at the bottom of the short tube body, and a tee is installed at the bottom of each bypass pipe, and a second control valve is installed at the bottom of each tee;

[0009] As a further solution of the present invention: both ends of the bypass valve are respectively connected to two tees;

[0010] As a further solution of the present invention: a transfer tube is installed at one end of the short tube body, and a reducer is installed at the other end of the short tube body.

[0011] As a further solution of the present invention: the axis of the short tube body and the axis of the blind plate are on the same horizontal straight line, and the inner diameter of the short tube body is the same as the diameter of the blind plate.

[0012] As a further solution of the present invention: the two exhaust pipes are symmetrically distributed about the vertical axis of the blind plate, and each exhaust pipe is connected to the interior of the short pipe body;

[0013] As a further solution of the present invention: the two pressure gauges are symmetrically distributed about the vertical axis of the blind plate.

[0014] As a further solution of the present invention: the two water pipes are symmetrically distributed about the vertical axis of the blind plate, and each water pipe is connected to the interior of the short pipe body.

[0015] As a further solution of the present invention: the two bypass pipes are symmetrically distributed about the vertical axis of the blind plate, and each bypass pipe is connected to the interior of the short pipe body, and each bypass pipe is connected to a tee.

[0016] As a further solution of the present invention: the connection mode between the transfer tube and the short tube body is flange connection, and the connection mode between the short tube body and the reducer is flange connection.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model is provided with a short pipe body, an exhaust pipe, a water pipe and a bypass pipe. The short pipe body, the exhaust pipe, the water pipe and the bypass pipe are integrated and assembled by welding, which saves the trouble of assembly and is convenient for directly connecting the device to the pipeline to be pressure tested to carry out pipeline pressure testing. It is fast and simple, and the construction and pressure testing can be carried out crosswise with one pressure test section as a cycle, which expands the working surface, improves the installation speed, realizes the rapid installation and pressure testing of pipelines in the pipeline corridor, saves construction period and facilitates construction.

[0019] 2. The utility model is provided with a blind plate, and the interior of the short pipe body is divided into two relatively independent spaces by the blind plate. Since the pipeline in the pipeline corridor is very long, a large blind plate force will be generated during the pressure test. When performing traditional pressure testing, temporary supports and hangers need to be set up. The long pipeline is divided into pipe sections of about 1 km in length through the device for segmented pressure testing, which can reduce the blind plate force and eliminate the step of installing temporary supports. It is more efficient and economical, and can save a large number of blind plates and supports and hangers.

[0020] 3. The utility model is provided with a bypass pipe, a tee, a second control valve and a bypass valve. Since the short pipe body is separated by a blind plate, after the pressure test of a section of pipeline is completed, the water inside can be injected into the pipeline to be tested at the other end through the bypass pipe and the tee by opening the bypass valve. After the water inside the tested pipeline is emptied, one side is removed and then the pressure test is carried out on the pipeline connected to the other end, so that water resources can be recycled and the use cost is further reduced.

[0021] 4. The utility model includes a transition tube and a reducer, which need to be connected to the short tube body through a flange when in use. The transition tube and the reducer are connected to the pipeline to be tested by welding. The size of the transition tube and the reducer can be customized according to the diameter of the pipeline to be tested, and the transition tube and the reducer can be used to bear the loss of cutting after the pipeline test is completed, which does not affect the overall recycling of the device and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0023] Figure 2 This utility model Figure 1 Another perspective view of .

[0024] Figure 3 This utility model Figure 2 Another perspective view of .

[0025] Figure 4 This utility model Figure 3 Cross-section view in the AA direction.

[0026] Figure 5 It is a three-dimensional structural diagram of the transfer pipe of the utility model.

[0027] Figure 6 This utility model Figure 5 Another perspective view of .

[0028] In the figure: 1- short pipe body, 2- blind plate, 3- exhaust pipe, 4- exhaust valve, 5- pressure gauge, 6- water pipe, 7- first control valve, 8- bypass pipe, 9- tee, 10- second control valve, 11- bypass valve, 12- transfer pipe, 13- reducing pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 In the embodiment of the utility model, a special pressure test short pipe for the pipeline corridor includes a short pipe body 1 and a bypass valve 11. A blind plate 2 is installed inside the short pipe body 1, and two exhaust pipes 3 are installed on the top of the short pipe body 1, and an exhaust valve 4 is installed on the top of each exhaust pipe 3; two pressure gauges 5 are installed on the top of the short pipe body 1; two water pipes 6 are installed at the bottom of the short pipe body 1, and a first control valve 7 is installed at the bottom of each water pipe 6; two bypass pipes 8 are installed at the bottom of the short pipe body 1, and a tee 9 is installed at the bottom of each tee 9, and a second control valve 10 is installed at the bottom of each tee 9; both ends of the bypass valve 11 are respectively connected to the two tees 9; a transfer pipe 12 is installed at one end of the short pipe body 1, and a reducing pipe 13 is installed at the other end of the short pipe body 1.

[0031] More specifically, the short pipe body 1 is connected to the exhaust pipe 3 , the water pipe 6 and the bypass pipe 8 by welding.

[0032] As a further explanation of this embodiment, water is injected into the interior of the short tube body 1 through the water pipe 6 .

[0033] In this embodiment, the axis of the short tube body 1 and the axis of the blind plate 2 are on the same horizontal straight line, and the inner diameter of the short tube body 1 is the same as the diameter of the blind plate 2 .

[0034] More specifically, the interior of the short tube body 1 is divided into two relatively independent spaces by the blind plate 2 .

[0035] As a further illustration of this embodiment, the blind plate 2 and the short tube body 1 are connected by welding.

[0036] In this embodiment, the two exhaust pipes 3 are symmetrically distributed about the vertical axis of the blind plate 2, and each exhaust pipe 3 is connected to the interior of the short tube body 1; the two pressure gauges 5 are symmetrically distributed about the vertical axis of the blind plate 2.

[0037] More specifically, during the process of injecting water into the short tube body 1 , it is necessary to activate the exhaust valve 4 on the corresponding side to exhaust the internal air through the exhaust pipe 3 .

[0038] As a further explanation of this embodiment, the pressure inside the pipeline on the corresponding side is detected by a pressure gauge 5 .

[0039] In this embodiment, the two water pipes 6 are symmetrically distributed about the vertical axis of the blind plate 2 , and each water pipe 6 is connected to the interior of the short tube body 1 .

[0040] More specifically, the water pipe 6 is connected to the pressure pump in conjunction with the first control valve 7 .

[0041] As a further explanation of this embodiment, after the test is completed, the test water inside the pipeline is discharged through the water pipe 6.

[0042] In this embodiment, the two bypass pipes 8 are symmetrically distributed about the vertical axis of the blind plate 2 , and each bypass pipe 8 is connected to the interior of the short pipe body 1 , and each bypass pipe 8 is connected to a tee 9 .

[0043] More specifically, the communication state between the two bypass pipes 8 is controlled by a bypass valve 11 .

[0044] As a further illustration of this embodiment, the water in the pipe on one side of the blind plate 2 is transferred to the pipe on the other side through the bypass pipe 8 and the tee 9.

[0045] In this embodiment, the connection between the transfer tube 12 and the short tube body 1 is a flange connection, and the connection between the short tube body 1 and the reducer 13 is a flange connection.

[0046] More specifically, the flange connection facilitates quick disassembly and assembly of the short tube body 1 .

[0047] As a further illustration of this embodiment, the transfer tube 12 and the reducer 13 are connected to the pipeline to be tested by welding when in use.

[0048] The working principle of the present invention is as follows: before testing, a suitable adapter tube 12 is selected according to the diameter of the required test pipe, and the adapter tube 12 is connected to both ends of the pipe to be tested by welding, and then the adapter tube 12 is flange-connected to the short pipe body 1. When the diameter of the tested pipe changes, a reducer 13 of a suitable size is selected according to the diameter of the reduced-diameter pipe, and the reducer 13 is welded to the pipe to be tested, and then the reducer 13 is flange-connected to the short pipe body 1. In this way, multiple short pipe bodies 1 and the pipes required for testing are connected in series. At this time, two adjacent short pipe bodies 1 cooperate with the two blind plates 2 inside and the connected pipes to form an independent space, and water is injected into the space to test the pressure of the connected pipe.

[0049] During the test, the pressure pump is connected to the first control valve 7 on one side, and the pipeline pump is connected to the two second control valves 10 at the bottom of the same short tube body 1, the external power supply is turned on, the pressure pump is started and the corresponding first control valve 7 is opened, and water is started to be injected into the connected pipeline through the water pipe 6. During this process, the corresponding exhaust valve 4 needs to be opened to discharge the air inside the pipeline through the exhaust pipe 3. After the pipeline is filled with water, the exhaust valve 4 is closed, and the pressure inside the pipeline is recorded by the pressure gauge 5. After the test is completed, the bypass valve 11 is first opened to transfer the water inside the pipeline filled with water through the bypass pipe 8 and the tee 9 to the pipeline to be tested at the other end that is not filled with water. During this process, the exhaust valve 4 needs to be opened. When the liquid levels inside the two pipelines are the same, the bypass valve 11 is closed, and the pipeline pump is started to transfer the remaining water in the pipeline, and the pressure test can continue.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Special short pressure test pipe for pipe gallery, characterized by: The invention comprises a short tube body (1) and a bypass valve (11), wherein a blind plate (2) is installed inside the short tube body (1), and two exhaust pipes (3) are installed on the top of the short tube body (1), and an exhaust valve (4) is installed on the top of each exhaust pipe (3); and two pressure gauges (5) are installed on the top of the short tube body (1); Two water pipes (6) are installed at the bottom of the short pipe body (1), and a first control valve (7) is installed at the bottom of each water pipe (6); Two bypass pipes (8) are installed at the bottom of the short pipe body (1), and a tee (9) is installed at the bottom of each bypass pipe (8), and a second control valve (10) is installed at the bottom of each tee (9); The two ends of the bypass valve (11) are respectively connected to two tees (9); One end of the short tube body (1) is installed with a transfer tube (12), and the other end of the short tube body (1) is installed with a reducer (13).

2. The special pressure test short pipe for the pipe gallery according to claim 1 is characterized in that: The axis center line of the short tube body (1) and the axis center line of the blind plate (2) are on the same horizontal straight line, and the inner diameter of the short tube body (1) is the same as the diameter of the blind plate (2).

3. The special pressure test short pipe for the pipe gallery according to claim 1 is characterized in that: The two exhaust pipes (3) are symmetrically distributed about the vertical axis of the blind plate (2), and each exhaust pipe (3) is connected to the interior of the short pipe body (1); The two pressure gauges (5) are symmetrically distributed about the vertical axis of the blind plate (2).

4. The special pressure test short pipe for the pipe gallery according to claim 1 is characterized in that: The two water pipes (6) are symmetrically distributed about the vertical axis of the blind plate (2), and each water pipe (6) is connected to the interior of the short pipe body (1).

5. The special pressure test short pipe for the pipe gallery according to claim 1 is characterized in that: The two bypass pipes (8) are symmetrically distributed about the vertical axis of the blind plate (2), and each bypass pipe (8) is connected to the interior of the short pipe body (1), and each bypass pipe (8) is connected to a tee (9).

6. The special pressure test short pipe for the pipe gallery according to claim 1 is characterized in that: The connection mode between the transfer tube (12) and the short tube body (1) is flange connection, and the connection mode between the short tube body (1) and the reducer (13) is flange connection.

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