A pipe static pressure testing device

Abstract

This utility model discloses a static pressure testing device for pipes, including a support frame for suspending and installing the pipe. A support rod is fixedly connected between the top and bottom frames of the support frame. A sleeve is movably fitted onto the surface of the support rod, and a connecting frame is fixed between the sleeves. An adjusting screw is rotatably connected to the top of the connecting frame. The adjusting screw is threadedly connected to an internally threaded pipe fixed on the top frame, and a crank is fixed to the top of the adjusting screw. This utility model, by setting up a support frame and suspending a pressure plug, a sealing plug, and the pipe through slack chains one and two, ensures that when the pipe bursts, the pressure plug and sealing plug are restrained by chains one and two, allowing them to bounce but not collide. This not only protects the pressure plug and sealing plug from impact damage but also limits the vibration amplitude of the pipe bursting, improving experimental safety.

Description

Technical Field

[0001] This utility model relates to the field of pipe testing technology, specifically a pipe static pressure testing device. Background Technology

[0002] The pipe static pressure tester is a professional device used to test the pressure resistance and sealing performance of pipes under static pressure conditions. It mainly consists of three parts: a pressure control system, a booster pump, and a plug. It has two testing methods: dry and wet.

[0003] During testing, the pipe filled with water is first sealed with a plug. A booster pump is then used to directly pressurize the pipe. The pressure control system monitors and records pressure changes until the pipe bursts. For dry testing, the pipe is simply placed on the ground. When the pipe bursts, it will bounce, and the internal water will overflow, allowing you to visually experience the burst. Therefore, safety precautions are necessary. Wet testing also includes a water tank. The same pipe used in the dry test is placed in the water tank. Pressure changes can only be seen on the display device of the pressure control system. A sudden drop in pressure indicates that the pipe has burst, but the burst cannot be directly observed while the pipe is in the water tank.

[0004] The static pressure dry test for pipes is very common. It can directly show the expansion and bursting of the pipe and is helpful for pipe research. However, at the moment of expansion and bursting, the pipe and the plug will bounce. When the plug bounces and lands, it will hit the ground and easily damage the plug. Therefore, it needs to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pipe static pressure testing device to solve the problem that pipes are prone to damaging the plug when they burst and bounce to the ground during the dry static pressure testing process.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A pipe static pressure testing device includes a support frame for suspending and installing pipes. A support rod is fixedly connected between the top frame and the bottom frame of the support frame. A sleeve is movably fitted on the surface of the support rod. A connecting frame is fixed between the sleeves. An adjusting screw is rotatably connected to the top of the connecting frame. The adjusting screw is threadedly connected to an internally threaded pipe fixed on the top frame. A crank handle is fixed to the top of the adjusting screw.

[0008] The support rod has a fixed tube fixed to its surface below the sleeve. The sleeve is connected to the pressure plug via chain one, and the fixed tube is connected to the sealing plug via chain two. The pressure plug and the sealing plug are respectively installed at the upper and lower ends of the pipe. The pressure plug is connected to the booster pump via a pressure pipe.

[0009] Preferably, both the top frame and the bottom frame are circular components, and there are two to four support rods that are fixed at equal intervals along the circumference on opposite surfaces of the top frame and the bottom frame.

[0010] Preferably, the adjusting screw and the pipe are both located on the axis of the top frame and the bottom frame.

[0011] Preferably, the length of chain one is greater than the length of chain two, and the length of chain two is greater than the radius of the base frame.

[0012] Preferably, the vertical distance between the sealing plug and the base frame is not less than ten centimeters.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention features a support frame that suspends a pressure plug, a sealing plug, and the pipe via slack chains one and two. When the pipe bursts, the pressure plug and sealing plug are restrained by chains one and two, allowing them to bounce without colliding. This not only protects the pressure plug and sealing plug from impact damage but also limits the vibration amplitude of the pipe bursting, improving experimental safety. It solves the problem that the pipe easily damages the plug when it bounces and lands during the static pressure dry test. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a top view of the support frame of this utility model.

[0017] In the diagram: 1. Pipe; 2. Support frame; 201. Top frame; 202. Base frame; 203. Support rod; 3. Sleeve; 4. Connecting frame; 5. Adjusting screw; 6. Internally threaded pipe; 7. Handle; 8. Fixing pipe; 9. Chain 1; 10. Pressure plug; 11. Chain 2; 12. Sealing plug; 13. Pressure pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-2As shown, this utility model provides a technical solution: a pipe static pressure testing device, including a support frame 2 for suspending and installing the pipe 1, a support rod 203 is fixedly connected between the top frame 201 and the bottom frame 202 of the support frame 2, both the top frame 201 and the bottom frame 202 are circular components, and there are two to four support rods 203 which are fixed at equal intervals along the circumference on the opposite surfaces of the top frame 201 and the bottom frame 202. The structure is simple and the stability is high.

[0020] A sleeve 3 is movably fitted onto the surface of the support rod 203. A connecting frame 4 is fixed between the sleeves 3. An adjusting screw 5 is rotatably connected to the top of the connecting frame 4. The adjusting screw 5 and the tube 1 are both located on the axis of the top frame 201 and the bottom frame 202. The adjusting screw 5 is threadedly connected to the internally threaded tube 6 fixed on the top frame 201. A crank 7 is fixed to the top of the adjusting screw 5.

[0021] The support rod 203 has a fixed tube 8 located below the sleeve 3. The sleeve 3 is connected to the pressure plug 10 via chain 1 9. The fixed tube 8 is connected to the sealing plug 12 via chain 2 11. The length of chain 1 9 is greater than the length of chain 2 11. The length of chain 2 11 is greater than the radius of the base frame 202.

[0022] The pressure plug 10 and the sealing plug 12 are respectively installed at the upper and lower ends of the pipe 1. The vertical distance between the sealing plug 12 and the base frame 202 is not less than 10 centimeters, so that the pipe 1 can move up and down when it bursts and bounces. The pressure plug 10 is connected to the booster pump through the pressure pipe 13.

[0023] Working principle:

[0024] The lower end of the pipe 1 is sealed by the sealing plug 12. The handle 7 is turned according to the length of the pipe 1. The height of the connecting frame 4, sleeve 3 and chain 9 is adjusted by adjusting the screw 5 to adapt to pipes of different lengths. The upper end of the pipe 1 is sealed by the pressure plug 10. The chain 9 and chain 11 are kept loose so that the pipe 1 can be moved by hand. The pipe 1 is pressurized by the booster pump and the pressure pipe 13 for testing. When the pipe 1 bursts, the pressure plug 10 and the sealing plug 12 are restrained by the chain 9 and chain 11, so that they can bounce but will not collide. This protects the pressure plug 10 and the sealing plug 12 from being damaged by impact. At the same time, it limits the vibration amplitude of the bursting of the pipe 1 and improves the safety of the experiment.

Claims

1. A hydrostatic testing apparatus for pipe, characterized by: Includes a support frame (2) for suspending and installing pipes (1), a support rod (203) is fixedly connected between the top frame (201) and the bottom frame (202) of the support frame (2), a sleeve (3) is movably sleeved on the surface of the support rod (203), a connecting frame (4) is fixed between the sleeves (3), an adjusting screw (5) is rotatably connected to the top of the connecting frame (4), the adjusting screw (5) is threadedly connected to an internally threaded pipe (6) fixed on the top frame (201), and a crank (7) is fixed to the top of the adjusting screw (5); The support rod (203) has a fixed tube (8) located below the sleeve (3) fixed on its surface. The sleeve (3) is connected to the pressure plug (10) via chain one (9). The fixed tube (8) is connected to the sealing plug (12) via chain two (11). The pressure plug (10) and the sealing plug (12) are respectively installed at the upper and lower ends of the pipe (1). The pressure plug (10) is connected to the booster pump via the pressure pipe (13).

2. A hydrostatic testing apparatus for pipe as defined in claim 1, wherein: The top frame (201) and the bottom frame (202) are both circular components, and there are two to four support rods (203) that are fixed at equal intervals along the circumference on the opposite surfaces of the top frame (201) and the bottom frame (202).

3. The hydrostatic testing apparatus of claim 1, wherein: The adjusting screw (5) and the pipe (1) are both located on the axis of the top frame (201) and the bottom frame (202).

4. The hydrostatic testing apparatus of claim 1, wherein: The length of chain one (9) is greater than the length of chain two (11), and the length of chain two (11) is greater than the radius of the base frame (202).

5. The hydrostatic testing apparatus of claim 1, wherein: The vertical distance between the sealing plug (12) and the base frame (202) is not less than ten centimeters.

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