A cyclic pressure testing machine

Abstract

This utility model relates to the field of pressure testing technology, specifically to a cyclic pressure testing machine, including a test bench, an air pump, a main pipe, a branch pipe, a connector, a pressure gauge, an electrical contact pressure gauge, and adjusting fasteners. When conducting a cyclic pressure test on a fire-fighting pipeline, the fire-fighting pipeline to be tested is connected to the branch pipe via the connector, and the adjusting fasteners are adjusted to ensure they are tightly against the outer wall of the fire-fighting pipeline. The air pump supplies air to the main pipe to generate an air source, and the branch pipes then direct the airflow into the opened branch pipes, which in turn direct the gas into the connected fire-fighting pipeline. During this process, the air pump continuously supplies air to the main pipe, and the pressure gauges monitor the air pressure in the main pipe in real time, thus reflecting the air pressure within the tested fire-fighting pipeline. This achieves the cyclic pressure test of the fire-fighting pipeline, allowing simultaneous testing of multiple fire-fighting pipes without the need for sequential testing, significantly reducing the testing time.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing technology, and in particular to a cyclic pressure testing machine. Background Technology

[0002] With the acceleration of urbanization and the increase in high-rise buildings, fire safety has become increasingly important. As a key component of the fire protection system, fire protection pipelines must reliably transport fire-fighting water in the event of a fire. Therefore, the requirements for the pressure resistance and sealing performance of fire protection pipelines are more stringent, and their performance needs to be tested by a cyclic pressure testing machine to ensure that they can work normally under various operating conditions.

[0003] Cyclic pressure testing primarily focuses on simulating the pressure cycle changes that pipelines experience during actual operation. It can effectively evaluate the long-term performance of pipelines, test fatigue strength, and ensure pipeline reliability and safety.

[0004] However, traditional pressure testing equipment can only test one pipe at a time and cannot test multiple pipes simultaneously. When testing multiple pipes, they need to be tested sequentially, which takes a long time, is cumbersome to operate, and is inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a cyclic pressure testing machine, which aims to solve the problem that existing pressure testing equipment can only test one pipeline at a time, and the testing time is long when testing multiple pipelines.

[0006] To achieve the above objectives, this utility model provides a cyclic pressure testing machine, including a test platform, an air pump, a main pipe, a branch pipe, a connector, a pressure gauge, an electrical contact pressure gauge, and an adjusting and fixing component. The air pump is fixedly connected to the test platform and located on top of the test platform. The main pipe is connected to the air pump and located on one side of the air pump. The branch pipe is connected to the main pipe and located at the end of the main pipe away from the air pump. The branch pipe is connected to the branch pipe and located on the side of the branch pipe away from the main pipe. The connector is mounted on one side of the branch pipe. The pressure gauge is mounted on the main pipe. The electrical contact pressure gauge is mounted on the branch pipe. The adjusting and fixing component is located on top of the test platform.

[0007] The cyclic pressure testing machine also includes a restraint buckle, which is respectively assembled on the outside of the main pipe, the branch pipe and the sub-pipe.

[0008] The adjusting and fixing component includes an adjusting slide and a fixing clamp. The adjusting slide is slidably disposed on the top of the experimental platform, and the fixing clamp is fixedly connected to the adjusting slide and located on the side of the adjusting slide away from the experimental platform.

[0009] The adjustable slide includes a sliding frame and a brake bolt. The sliding frame is slidably disposed on the top of the experimental platform, and the brake bolt is assembled on one side of the sliding frame.

[0010] The fixing clamp includes a clamp body, a rubber pad, and a connecting bolt. The clamp body is fixedly connected to the sliding frame and is located on one side of the sliding frame. The rubber pad is fixedly connected to the clamp body and is located on one side of the clamp body. The connecting bolt is threadedly connected to the clamp body and passes through the clamp body.

[0011] This utility model discloses a cyclic pressure testing machine. The test bench provides support and installation conditions for the remaining structures. When conducting a cyclic pressure test on a fire-fighting pipeline, the tester first connects the fire-fighting pipeline to be tested and the branch pipe (the branch pipe is equipped with a control valve for opening and closing; the branch pipe connected to the fire-fighting pipeline is open, and the unconnected branch pipe is closed) through the connector. The tester then adjusts the adjusting fastener to ensure it is tightly against the outer wall of the fire-fighting pipeline and to ensure the stability of the connection between the fire-fighting pipeline and the connector (the end of the fire-fighting pipeline away from the connector is blocked). The air pump is then turned on, supplying air to the main pipe to generate an air source. The diverter pipe then directs the airflow into the opened branch pipes, and the branch pipes then direct the gas into the fire-fighting pipelines they are connected to. During this process, the air pump continuously fills the main pipe with air, and the pressure gauge monitors the air pressure in the main pipe in real time, thereby reflecting the air pressure in the fire-fighting pipeline and realizing the test of the circulating pressure of the fire-fighting pipeline. The setting of the electric contact pressure gauge is used to set the upper and lower limit pressure values ​​of the test air pressure. When the pressure exceeds the set range, the controller immediately stops the air pump, realizing precise control and stable adjustment of the pressure. This circulating pressure testing machine divides the gas in the main pipe into multiple branch pipes through the diversion pipe, and tests multiple fire-fighting pipes simultaneously through the branch pipes, eliminating the need for sequential testing and greatly shortening the testing time of the fire-fighting pipeline. This solves the problem that existing pressure testing equipment can only test one pipeline at a time, and the testing time is long when testing multiple pipelines. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a structural schematic diagram of a cyclic pressure testing machine according to the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of a cyclic pressure testing machine of this utility model from another direction.

[0015] Figure 3 yes Figure 2 A magnified view of detail A.

[0016] In the diagram: 1-Experimental platform, 2-Air pump, 3-Main pipe, 4-Diverter pipe, 5-Branch pipe, 6-Connector, 7-Pressure gauge, 8-Electrical contact pressure gauge, 9-Adjusting fastener, 10-Restraint buckle, 91-Adjusting slide, 92-Fixing clamp, 911-Slide frame, 912-Brake bolt, 921-Clamping ring body, 922-Rubber pad, 923-Connecting bolt. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1 to 3 This utility model provides a cyclic pressure testing machine, including a test platform 1, an air pump 2, a main pipe 3, a branch pipe 4, a connector 6, a pressure gauge 7, an electrical contact pressure gauge 8, and an adjusting and fixing component 9. The air pump 2 is fixedly connected to the test platform 1 and is located on the top of the test platform 1. The main pipe 3 is connected to the air pump 2 and is located on one side of the air pump 2. The branch pipe 4 is connected to the main pipe 3 and is located at the end of the main pipe 3 away from the air pump 2. The branch pipe 5 is connected to the branch pipe 4 and is located on the side of the branch pipe 4 away from the main pipe 3. The connector 6 is assembled on one side of the branch pipe 5. The pressure gauge 7 is assembled on the main pipe 3. The electrical contact pressure gauge 8 is assembled on the branch pipe 5. The adjusting and fixing component 9 is located on the top of the test platform 1.

[0019] In this embodiment, the test bench 1 provides support and installation conditions for the remaining structures. When conducting a cyclic pressure test on the fire-fighting pipeline, the tester first connects the fire-fighting pipeline to be tested and the branch pipe 5 through the connector 6 (the branch pipe 5 is equipped with a control valve for opening and closing; the branch pipe 5 connected to the fire-fighting pipeline is open, and the unconnected branch pipe is closed), and adjusts the adjusting fastener 9 to ensure that the adjusting fastener 9 is tightly attached to the outer wall of the fire-fighting pipeline and to ensure the stability of the connection between the fire-fighting pipeline and the connector 6. The air pump 2 is then turned on, and air is supplied to the main pipe 3 through the air pump 2 to generate an air source. The diversion pipe 4 then guides the airflow into the opened branch pipes 5, and the branch pipes 5 then guide the gas into the fire-fighting pipeline connected to them. During this process, the air is inflated... Pump 2 continuously pumps air into the main pipe 3, and the pressure gauge 7 monitors the air pressure in the main pipe 3 in real time, thereby reflecting the air pressure in the fire-fighting pipeline and realizing the test of the circulating pressure of the fire-fighting pipeline. The electric contact pressure gauge 8 is set to set the upper and lower limit pressure values ​​of the test air pressure. When the pressure exceeds the set range, the controller immediately stops the air pump 2, realizing precise control and stable adjustment of the pressure. This circulating pressure testing machine diverts the gas from the main pipe 3 into multiple branch pipes 5 through the diversion pipe 4, and tests multiple fire-fighting pipes simultaneously through the branch pipes 5, eliminating the need for sequential testing and greatly shortening the testing time of the fire-fighting pipeline. This solves the problem that existing pressure testing equipment can only test one pipeline at a time, and the testing time is long when testing multiple pipelines.

[0020] Furthermore, the cyclic pressure testing machine also includes a restraint buckle 10, which is respectively assembled on the outside of the main pipe 3, the diversion pipe 4 and the branch pipe 5.

[0021] In this embodiment, the restraint buckle 10 is fixed to the experimental table 1 by bolts, thereby fixing and restraining the main pipe 3, the diversion pipe 4 and the branch pipe 5, and preventing the main pipe 3, the diversion pipe 4 and the branch pipe 5 from swinging when the air pump 2 is ventilated.

[0022] Furthermore, the adjusting fastener 9 includes an adjusting slide 91 and a fixing ring 92. The adjusting slide 91 is slidably disposed on the top of the experimental table 1, and the fixing ring 92 is fixedly connected to the adjusting slide 91 and is located on the side of the adjusting slide 91 away from the experimental table 1.

[0023] In this embodiment, the adjusting slide 91 is used to adjust the spacing of the fixing clamp 92, so that the fixing clamp 92 can clamp and fix fire pipes of different sizes.

[0024] Furthermore, the adjusting slide 91 includes a slide frame 911 and a brake 912. The slide frame 911 is slidably disposed on the top of the experimental platform 1, and the brake 912 is assembled on one side of the slide frame 911.

[0025] In this embodiment, the sliding frame 911 can adjust the spacing between the fixing clamps 92 according to the diameter of the fire-fighting pipe being tested, so that the fixing clamps 92 can be used to test pipes of different sizes. The brake bolt 912 is provided to fix the sliding frame 911 on the test bench 1 when the sliding frame 911 slides to a suitable position.

[0026] Furthermore, the fixing clamp 92 includes a clamp body 921, a rubber pad 922, and a connecting bolt 923. The clamp body 921 is fixedly connected to the sliding frame 911 and is located on one side of the sliding frame 911. The rubber pad 922 is fixedly connected to the clamp body 921 and is located on one side of the clamp body 921. The connecting bolt 923 is threadedly connected to the clamp body 921 and passes through the clamp body 921.

[0027] In this embodiment, the connecting bolt 923 is used to connect the two semi-arc-shaped clamping ring bodies 921, so that the clamping ring bodies 921 clamp and fix the fire-fighting pipe to be tested. The rubber pad 922 is provided to buffer the clamping force of the clamping ring bodies 921 on the fire-fighting pipe to be tested, so as to avoid the clamping ring bodies 921 damaging the fire-fighting pipe and thus affecting the accuracy of the cyclic pressure test.

[0028] The above-disclosed embodiments are merely preferred embodiments of a cyclic pressure testing machine of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A cyclic pressure testing machine, Its characteristics are: Includes a laboratory bench, air pump, main pipe, branch pipe, connectors, pressure gauge, electrical contact pressure gauge, and adjusting fasteners; The air pump is fixedly connected to the experimental platform and located on the top of the experimental platform. The main pipe is connected to the air pump and located on one side of the air pump. The branch pipe is connected to the main pipe and located at the end of the main pipe away from the air pump. The branch pipe is connected to the branch pipe and located on the side of the branch pipe away from the main pipe. The connector is mounted on one side of the branch pipe. The pressure gauge is mounted on the main pipe. The electric contact pressure gauge is mounted on the branch pipe. The adjusting and fixing component is located on the top of the experimental platform.

2. The cyclic pressure testing machine as described in claim 1, characterized in that; The cyclic pressure testing machine also includes restraint buckles, which are respectively assembled on the outside of the main pipe, the branch pipe and the shunt pipe.

3. The cyclic pressure testing machine as described in claim 1, characterized in that... ； The adjusting fastener includes an adjusting slide and a fixing clamp. The adjusting slide is slidably disposed on the top of the experimental platform, and the fixing clamp is fixedly connected to the adjusting slide and located on the side of the adjusting slide away from the experimental platform.

4. The cyclic pressure testing machine as described in claim 3, characterized in that... ； The adjustable slide includes a sliding frame and a brake bolt. The sliding frame is slidably disposed on the top of the experimental platform, and the brake bolt is assembled on one side of the sliding frame.

5. The cyclic pressure testing machine as described in claim 4, characterized in that... ； The fixing clamp includes a clamp body, a rubber pad, and a connecting bolt. The clamp body is fixedly connected to the sliding frame and is located on one side of the sliding frame. The rubber pad is fixedly connected to the clamp body and is located on one side of the clamp body. The connecting bolt is threadedly connected to the clamp body and passes through the clamp body.

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