Portable pipeline water pressure test tool

Abstract

The utility model discloses a portable pipeline water pressure test tool, which particularly relates to the technical field of pipeline water pressure tests and comprises a water injection main pipe and water injection branch pipes. The side wall of the water injection main pipe is fixedly connected with one ends of a plurality of water injection branch pipes, and the other ends of the water injection branch pipes are connected with corresponding to-be-detected pipelines; one end of the water injection main pipe is connected to a water source through a booster pump; a pressure gauge is fixedly mounted on the side wall of the water injection main pipe; blocking plates are fixedly installed at the two ends of the to-be-detected pipeline, holes used for communicating the water injection branch pipe with the interior of the to-be-detected pipeline are formed in the blocking plates, and the water injection branch pipe is fixedly connected with the to-be-detected pipeline. The tool is simple in structure, quick to manufacture, convenient to use and easy to carry; and if the installation work of a 1000MW thermal power generation construction project plant area water supply pipeline is considered, compared with a traditional method of carrying out a hydraulic pressure test on pipelines one by one and the like, 200 work days of labor can be saved, the tool can be recycled, and waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline water pressure testing, and more specifically, to a portable pipeline water pressure testing tool. Background Art

[0002] With the development of thermal power generation construction projects, the corresponding steam turbine installation work requirements are getting higher and higher, and more and more attention is paid to the refinement of construction speed and quality, which in turn puts higher and higher construction requirements on on-site workers, forcing construction workers to complete construction tasks in a timely and effective manner under the premise of safety and compliance; among them, pipeline water pressure test is an indispensable process in the installation steps of power station steam turbines.

[0003] However, in actual use, the pipeline water pressure test is time-consuming, labor-intensive and material-intensive. Therefore, it is necessary to design a portable pipeline water pressure test tool as a further improvement so that the tool can not only reduce labor and material consumption, but also be recycled after the project is completed, so as to achieve the purpose of reducing construction costs. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a portable pipeline water pressure testing tool to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable pipeline water pressure test tool, the tool comprising: a water injection main pipe and a water injection branch pipe;

[0006] The side wall of the water injection main pipe is fixedly connected to one end of a plurality of water injection branch pipes, and the other end of the water injection branch pipe is connected to the corresponding pipeline to be tested;

[0007] One end of the water injection main pipe is connected to a water source via a booster pump;

[0008] A pressure gauge for displaying the water pressure test pressure in real time is fixedly installed on the side wall of the water injection main pipe.

[0009] Furthermore, plugging plates are fixedly installed at the pipe openings at both ends of the pipeline to be tested, and the plugging plate close to the water injection branch pipe is provided with a hole for connecting the water injection branch pipe with the inside of the pipeline to be tested, and the water injection branch pipe is fixedly connected to the pipeline to be tested.

[0010] Furthermore, the hole is located on the end surface of the pipe to be tested close to the top edge.

[0011] Furthermore, the diameter of the pipeline to be tested and the diameter of the water injection main pipe are not less than the diameter of the water injection branch pipe.

[0012] Furthermore, the length of the water injection branch pipe does not exceed 0.5m.

[0013] Furthermore, the materials of the water injection main pipe and the water injection branch pipe are both set to carbon steel.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model tool has a simple structure, is quick to manufacture, easy to use and carry; if the installation of a 1000MW thermal power plant construction project feed water pipeline is considered, compared with traditional methods such as water pressure testing of each pipeline, it can save 200 man-days of labor, and the tool can be recycled to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the utility model combined with the pipeline to be tested.

[0018] The accompanying drawings are marked as follows:

[0019] 1. Water injection main pipe; 2. Water injection branch pipe; 3. Pipeline to be tested; 4. Pressure gauge;

[0020] 5. Blocking plate; 51. Hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] As attached Figure 1 and attached Figure 2 A portable pipeline water pressure test tool is shown, the tool comprising: a water injection main pipe 1 and a water injection branch pipe 2;

[0023] The side wall of the water injection main pipe 1 is fixedly connected to one end of a plurality of water injection branch pipes 2, and the other end of the water injection branch pipe 2 is connected to the corresponding pipeline 3 to be tested;

[0024] One end of the water injection main pipe 1 is connected to the water source through a booster pump;

[0025] A pressure gauge 4 for displaying the water pressure test pressure in real time is fixedly installed on the side wall of the water injection main pipe 1 .

[0026] Among them, in accordance with the water pressure test specifications and drawing requirements, the water injection main pipe 1 and the water injection branch pipe 2 are welded into one; and the pipeline 3 to be tested that needs to undergo a water pressure test is also welded into one with the water injection branch pipe 2 to ensure the airtightness inside the pipeline; when the booster pump is turned on, the water injection main pipe 1 introduces water from the water source into the water injection branch pipe 2, and several water injection branch pipes 2 simultaneously inject water and pressurize several corresponding pipelines 3 to be tested; after the pressure reaches the test pressure required by the design drawings, the water injection can be stopped and the pressure maintenance stage can be entered, and the water injection work can be completed, thereby effectively saving construction time, accelerating construction progress, and saving labor and material consumption.

[0027] Among them, the pressure gauge 4 is a conventionally available product with a shockproof function, and can also display the pressure value in real time;

[0028] The water pipe hydraulic test ensures that multiple pipes 3 to be tested are subjected to hydraulic pressure tests simultaneously according to actual construction needs and the size of the construction site.

[0029] Embodiment 1: If the specification of the pipeline 3 to be tested is DN1000, this tool is used. The specification of the water injection main pipe 1 of the tool is DN300, the specification of the water injection branch pipe 2 is DN50, 6 water injection branch pipes 2 are arranged, and 6 pipelines 3 to be tested with a specification of DN1000 are connected. A pressure gauge 4 is installed on the water injection main pipe 1 to display the water pressure;

[0030] Embodiment 2: If the specification of the pipeline 3 to be tested is DN500, this tool is used. The specification of the water injection main pipe 1 of the tool is DN200, the specification of the water injection branch pipe 2 is DN50, 4 water injection branch pipes 2 are arranged, and 4 pipelines 3 to be tested with a specification of DN500 are connected.

[0031] In summary, the tool of the utility model has a simple structure, is quick to manufacture, easy to use and easy to carry; if the installation of a 1000MW thermal power plant supply water pipeline is considered, compared with traditional methods such as water pressure testing of each pipeline, it can save 200 man-days of labor, and the tool can be recycled to avoid waste.

[0032] In a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, plugging plates 5 are fixedly installed at the pipe openings at both ends of the pipeline 3 to be tested, and the plugging plate 5 close to the water injection branch pipe 2 is provided with a hole 51 for connecting the water injection branch pipe 2 and the inside of the pipeline 3 to be tested, and the water injection branch pipe 2 is fixedly connected to the pipeline 3 to be tested.

[0033] The plugging plate 5 is welded at the pipe openings at both ends of the pipe 3 to be tested, and plays a plugging role; the hole 51 is used to facilitate the welding of the plugging plate 5 and the water injection branch pipe 2;

[0034] Among them, an exhaust pipe is installed on the blocking plate 5 of the pipeline to be tested 3, and a valve is provided on the exhaust pipe. When water is injected, the gas in the pipeline to be tested 3 is exhausted, and then the valve is closed to complete the water injection operation.

[0035] In a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, the hole 51 is located on the end surface of the pipeline 3 to be tested near the top edge, so as to reduce the impact of the injected water on the water injection branch pipe 2 when the water injection branch pipe 2 injects water into the pipeline 3 to be tested.

[0036] In a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, the diameter of the pipeline to be tested 3 and the diameter of the water injection main pipe 1 are not less than the diameter of the water injection branch pipe 2; so that the water injection branch pipe 2 is directed;

[0037] In a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, the length of the water injection branch pipe 2 does not exceed 0.5 m, thereby preventing the water injection branch pipe 2 from being too long and affecting the actual water injection effect.

[0038] In a preferred embodiment, as shown in the attached Figure 1 and attached Figure 2 As shown, the materials of the water injection main pipe 1 and the water injection branch pipe 2 are both set to carbon steel.

[0039] The material of the water injection main pipe 1 and the water injection branch pipe 2 is preferably Q235B carbon steel, which has excellent welding performance and saves costs.

[0040] Working principle of the utility model: when in use, according to the hydraulic pressure test specifications and drawing requirements, the water injection main pipe 1 and multiple water injection branch pipes 2 are welded into one; one water injection branch pipe 2 corresponds to one pipeline to be tested 3 and is welded into one, ensuring the airtightness inside the pipeline;

[0041] When the booster pump is turned on, the water injection main pipe 1 introduces water from the water source into the water injection branch pipe 2, and several water injection branch pipes 2 simultaneously inject water and pressurize several corresponding pipes to be tested 3; at this time, the exhaust pipe valve installed on the plugging plate 5 is controlled to exhaust the gas in the pipe to be tested 3 during water injection. After the pressure reaches the test pressure required by the design drawing, the water injection can be stopped, and the valve can be closed to complete the water injection operation, entering the pressure maintaining stage, and the water injection work can be completed.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable pipeline water pressure test tool, characterized in that: The tool comprises: a water injection main pipe (1) and a water injection branch pipe (2); The side wall of the water injection main pipe (1) is fixedly connected to one end of a plurality of water injection branch pipes (2), and the other end of the water injection branch pipe (2) is connected to the corresponding pipeline to be tested (3); One end of the water injection main pipe (1) is connected to a water source via a booster pump; A pressure gauge (4) for displaying the water pressure test pressure in real time is fixedly mounted on the side wall of the water injection main pipe (1).

2. A portable pipeline water pressure testing tool according to claim 1, characterized in that: The pipe openings at both ends of the pipeline to be tested (3) are fixedly mounted with plugging plates (5), the plugging plate (5) close to the water injection branch pipe (2) is provided with a hole (51) for connecting the water injection branch pipe (2) and the inside of the pipeline to be tested (3), and the water injection branch pipe (2) is fixedly connected to the pipeline to be tested (3).

3. A portable pipeline water pressure testing tool according to claim 2, characterized in that: The hole (51) is located on the end surface of the pipe (3) to be tested, close to the top edge.

4. A portable pipeline water pressure testing tool according to claim 1, characterized in that: The diameter of the pipeline to be tested (3) and the diameter of the water injection main pipe (1) are not less than the diameter of the water injection branch pipe (2).

5. A portable pipeline water pressure testing tool according to claim 1, characterized in that: The length of the water injection branch pipe (2) does not exceed 0.5 m.

6. A portable pipeline water pressure testing tool according to claim 1, characterized in that: The materials of the water injection main pipe (1) and the water injection branch pipe (2) are both set to be carbon steel.

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