Large-diameter river-crossing immersed tube water pressure test detection device

Abstract

The utility model discloses a large-diameter river-crossing immersed tube water pressure test detection device, and belongs to the technical field of water pressure detection. The water pressure test detection device is used for water pressure detection of a water conveying pipeline to be detected, sealing blind plates are arranged at the water inlet end and the water outlet end of the water conveying pipeline, a through hole is formed in the sealing blind plate at any end, a water inlet pipe is arranged in the through hole, and a water outlet pipe, a stop valve and a gate valve are sequentially arranged on the water inlet pipe in the water flow direction. A pressure relief pipe is arranged on the water conveying pipeline, an external pipe gate valve is arranged at the water outlet end of the pressure relief pipe, a pressure measuring pipe is arranged on the pressure relief pipe, a pressure gauge is arranged on the pressure measuring pipe, and a water suction pump is arranged at the water inlet end of the water inlet pipe. The device can detect the water pressure of the large-diameter immersed tube, and is simple in structure, easy and convenient to install and good in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure detection, in particular to a water pressure test detection device for a large-diameter river-crossing immersed tube. Background Art

[0002] The water pressure test device is a device for inspecting water supply pipelines. It judges the quality and safety of pipelines by injecting water into the pipelines and pressurizing them. Before the water supply pipelines are sunk, the water pressure inside the water supply pipelines needs to be checked to avoid damage to the water supply pipelines, which would cause a large amount of tap water to be lost.

[0003] Most of the existing large-diameter cross-river immersed tube water pressure test detection devices cannot meet the requirements of large-diameter immersed tube water pressure detection or can meet the requirements but have the disadvantages of poor reliability and complex installation. Summary of the invention

[0004] The utility model provides a large-diameter cross-river immersed tube water pressure test detection device, which can detect the water pressure of the large-diameter immersed tube and has the advantages of simple structure, easy installation and good reliability.

[0005] In order to achieve the above-mentioned purpose, the utility model designs a large-diameter cross-river immersed pipe water pressure test detection device. The water pressure test detection device is used for water pressure detection of the water pipeline to be detected, the water inlet and outlet ends of the water pipeline are provided with sealing blind plates, and a through hole is opened on the sealing blind plate at either end, a water inlet pipe is arranged in the through hole, the water inlet pipe is provided with a water outlet pipe, a stop valve and a gate valve in sequence along the water flow direction, the water outlet pipe mouth is provided with a water outlet pipe gate valve, the water pipeline is provided with a pressure relief pipe, the water outlet end of the pressure relief pipe is provided with an external pipe gate valve, the pressure relief pipe is provided with a pressure measuring pipe, the pressure measuring pipe is provided with a pressure gauge, and the water inlet end of the water inlet pipe is provided with a water pump.

[0006] Preferably, a pressure measuring tube gate valve is provided on the pressure measuring tube.

[0007] Preferably, the diameter of the pressure measuring tube gate valve is 25 mm.

[0008] Preferably, the diameter of the stop valve is 50 mm.

[0009] Preferably, the diameter of the gate valve is 50 mm.

[0010] Preferably, the diameter of the outlet pipe gate valve is 50 mm.

[0011] Preferably, the diameter of the external pipe gate valve is 25 mm.

[0012] Preferably, the measuring range of the pressure gauge is 0-1.6 MPa.

[0013] Beneficial effects of the utility model:

[0014] The utility model can detect the water pressure of a large-diameter immersed pipe and has the advantages of simple structure, easy installation and good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a process flow chart of the utility model;

[0016] Reference numerals:

[0017] 1 water delivery pipeline, 2 sealing blind plate, 3 water inlet pipe, 31 water outlet pipe, 311 water outlet pipe gate valve, 32 stop valve, 33 gate valve, 4 pressure relief pipe, 41 external pipe gate valve, 5 pressure measuring pipe, 51 pressure measuring pipe gate valve, 6 pressure gauge, 7 water pump. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 The large-diameter cross-river immersed pipe water pressure test detection device shown is used for water pressure detection of the water pipeline 1 to be detected. The water pipeline 1 is provided with a sealing blind plate 2 at the water inlet and outlet ends. The sealing blind plate 2 at either end is provided with a through hole, and a water inlet pipe 3 is provided in the through hole. The water inlet pipe 3 is provided with an outlet pipe 31, a stop valve 32 with a diameter of 50 mm, and a gate valve 33 with a diameter of 50 mm in sequence along the water flow direction. The outlet of the water pipe 31 is provided with an outlet pipe gate valve 311 with a diameter of 50 mm. The water pipeline 1 is provided with a pressure relief pipe 4, and the outlet end of the pressure relief pipe 4 is provided with an external pipe gate valve 41 with a diameter of 25 mm. The pressure relief pipe 4 is provided with a pressure measuring pipe 5, and the pressure measuring pipe 5 is provided with a pressure gauge 6. The measuring range of the pressure gauge 6 is 0-1.6Mpa. A water pump 7 is provided at the water inlet end of the water inlet pipe 3.

[0026] The pressure measuring tube 5 is provided with a pressure measuring tube gate valve 51 with a diameter of 25 mm.

[0027] The following is the process flow of the device at work:

[0028] Assemble the large-diameter cross-river immersed tube water pressure test detection device in Example 1. In the initial state, all gate valves are defaulted to the closed state. Open the external pipe gate valve 41, connect the water injection pipe, fill the water pipeline 1 to be tested with water, close the external pipe gate valve 41, soak the water pipeline 1 to be tested for 24 hours, put the water inlet pipe of the water pump 7 into the water, open the gate valve 33, the stop valve 32, the water pump 7 and the pressure measuring pipe gate valve 51 in turn, observe the pressure gauge 6, the pressure on the pressure gauge 6 reaches 0.5Mpa, close the water pump 7 and the gate valve 33, and check the condition of the pipeline. If there is no abnormality, continue to open the water pump 7 and gradually pressurize it to the test pressure of 1.0Mpa, stabilize the pressure for 30 minutes, and record the pressure change value. If the pressure drops by 0.5kg / cm2 within 30 minutes, the water pipeline 1 to be tested is qualified, and the pressure drops by 0.2kg / cm2. The water pipeline 1 to be tested is excellent.

[0029] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A large-diameter cross-river immersed pipe water pressure test detection device, the water pressure test detection device is used for water pressure detection of a water pipeline (1) to be detected, characterized in that: The water supply pipeline (1) is provided with sealing blind plates (2) at the water inlet and outlet ends. A through hole is provided on the sealing blind plate (2) at either end. A water inlet pipe (3) is provided in the through hole. The water inlet pipe (3) is provided with a water outlet pipe (31), a stop valve (32) and a gate valve (33) in sequence along the water flow direction. The outlet pipe (31) is provided with a water outlet gate valve (311). The water supply pipeline (1) is provided with a pressure relief pipe (4). The other end of the pressure relief pipe (4) is provided with an external pipe gate valve (41). The pressure relief pipe (4) is provided with a pressure measuring pipe (5). The pressure measuring pipe (5) is provided with a pressure gauge (6). The water inlet end of the water inlet pipe (3) is provided with a water pump (7).

2. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized in that: The pressure measuring tube (5) is provided with a pressure measuring tube gate valve (51).

3. The large-diameter cross-river immersed tube water pressure test detection device according to claim 2 is characterized in that: The diameter of the pressure measuring tube gate valve (51) is 25 mm.

4. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized in that: The diameter of the stop valve (32) is 50 mm.

5. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized in that: The diameter of the gate valve (33) is 50 mm.

6. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized by: The diameter of the outlet pipe gate valve (311) is 50 mm.

7. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized by: The diameter of the external pipe gate valve (41) is 25 mm.

8. The large-diameter cross-river immersed tube water pressure test detection device according to claim 1 is characterized by: The measuring range of the pressure gauge (6) is 0 to 1.6 MPa.

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