A valve pressure testing device

Abstract

This utility model provides a valve pressure testing device, including a pressure testing pipe. A first blind flange is installed at one end of the pressure testing pipe. A detachable connecting pipe is installed at the end of the pressure testing pipe away from the first blind flange. A second blind flange is installed at the end of the connecting pipe away from the pressure testing pipe. Multiple pipe joints for connecting valves are evenly installed on the upper part of the upper surface of the pressure testing pipe. A pressure gauge is installed on the upper part of the outer surface of the connecting pipe near the second blind flange. A vertically arranged liquid storage cylinder is installed on the lower part of the outer surface of the connecting pipe. A cylinder cover is installed at the lower end of the liquid storage cylinder. A vertically arranged hydraulic cylinder is installed in the middle of the lower surface of the cylinder cover. The movable end of the hydraulic cylinder passes through the cylinder cover and is equipped with a piston. The piston is slidably installed inside the liquid storage cylinder. This utility model has the following beneficial effects: preventing residual water from flowing out at will, reducing water waste, and helping to maintain the cleanliness of the working environment.

Description

Technical Field

[0001] This utility model is a valve pressure testing device, belonging to the field of valve testing technology. Background Technology

[0002] Valve pressure testing is a crucial step in ensuring valve quality and safe operation. It involves simulating actual operating conditions to test the valve's sealing performance, strength, and operational capabilities, preventing pipeline system failures caused by valve leakage or damage. During pressure testing, valves are typically installed at the end of a horizontal test pipeline, and pressure water is injected while pressure gauges are observed to obtain data. However, after the pressure test is completed and the equipment is disassembled, residual water in the test pipeline and inside the valves can flow freely along the joints, causing slippery surfaces, scattering debris, affecting the cleanliness of the working environment, and wasting water resources. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a valve pressure testing device to solve the problems mentioned in the background technology. This utility model prevents residual water from flowing out at will, reduces water waste, and helps maintain the cleanliness of the working environment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a valve pressure testing device, comprising a pressure testing pipe, a first blind plate installed at one end of the pressure testing pipe, a detachable connecting pipe installed at the end of the pressure testing pipe away from the first blind plate, a second blind plate installed at the end of the connecting pipe away from the pressure testing pipe, a plurality of pipe joints for connecting valves evenly installed on the upper part of the upper surface of the pressure testing pipe, a pressure gauge installed on the upper part of the outer surface of the connecting pipe near the second blind plate, a vertically arranged liquid storage cylinder installed on the lower part of the outer surface of the connecting pipe, a cylinder cover installed at the lower end of the liquid storage cylinder, a vertically arranged hydraulic cylinder installed in the middle of the lower surface of the cylinder cover, the movable end of the hydraulic cylinder penetrating the cylinder cover and having a piston installed thereon, the piston being slidably installed inside the liquid storage cylinder.

[0005] Furthermore, two supports are installed at the lower part of the outer surface of the test pipe. The supports are U-shaped and each end of the supports is equipped with a base. The upper surface of the base is provided with multiple foot holes.

[0006] Furthermore, a vertically arranged baffle is provided on one side of the pressure test pipeline, and two plug-in posts are installed at the lower end of the baffle. Plug-in sleeves are installed on the upper surface of the horizontal part of the two brackets, and the two plug-in posts are respectively inserted into the two plug-in sleeves.

[0007] Furthermore, a sponge block is provided on the side of the baffle plate facing the test pipe, and the sponge block is connected to the baffle plate by Velcro.

[0008] Furthermore, two symmetrically arranged handles are installed on the side of the baffle plate away from the test pressure pipe, and the handles are U-shaped.

[0009] Furthermore, a notch is provided at the upper end of the insertion post, and the liquid baffle is installed in the notch.

[0010] Furthermore, a lower pipe head is installed at the middle position of the upper surface of the liquid storage cylinder, and an upper pipe head is installed at the lower position of the outer surface of the connecting pipe. The lower pipe head is connected to the upper pipe head by means of a flange and bolts.

[0011] Furthermore, a connecting ring is fitted at the lower end of the liquid storage cylinder to be fixed to the liquid storage cylinder, and the cylinder cover is connected to the connecting ring by multiple bolts.

[0012] The beneficial effects of this utility model are:

[0013] 1. Install the pressure gauge and liquid storage tank on the connecting pipe and connect the connecting pipe to the test pressure pipeline. This makes it convenient to place the pressure gauge and liquid storage tank on one side of the test pressure pipeline for easy operation. When the hydraulic cylinder extends, it drives the piston to squeeze the water in the liquid storage tank, allowing the water to enter the space formed by the test pressure pipeline and the connecting pipe. The pressure gauge detects the water pressure, thus providing test data for the valve pressure test.

[0014] 2. Connect the liquid storage tank at the bottom of the connecting pipe to the pressure test pipeline. Then install the valve to be pressure tested at the pipe joint on the upper part of the outer surface of the pressure test pipeline. After the pressure test is completed, the hydraulic cylinder drives the piston to move down, so that the water in the pressure test pipeline and the valve flows back into the liquid storage tank, thereby realizing the back pumping of the pressure test water source. This avoids residual water dripping onto the ground when the valve is disassembled, reduces water waste, and helps maintain the cleanliness of the working environment.

[0015] 3. Insert the plug into the plug sleeve to complete the connection between the baffle and the bracket. Personnel should stand on the side of the baffle away from the test pipe. Under the protection of the baffle, water splashed from the valve and pipe joint connection or valve during the test will not be randomly impacted on the personnel, thus improving safety. When the splashed water impacts the baffle, it will first come into contact with the sponge block, thereby reducing the spread of water splashed onto the baffle. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a valve pressure testing device according to the present invention;

[0018] Figure 2 This is another perspective view of the pressure testing device for a valve according to the present invention;

[0019] Figure 3 This is a cross-sectional assembly diagram of the piston, connecting pipe, hydraulic cylinder and liquid storage tank in a valve pressure testing device according to this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly of the sponge block, the plug-in column and the baffle plate in the pressure testing device of a valve according to the present invention.

[0021] In the diagram: 1-Test pressure pipe, 2-First blind flange, 3-Bracket, 4-Liquid baffle, 5-Sponge block, 6-Pipe fitting, 7-Connecting pipe, 8-Pressure gauge, 9-Second blind flange, 10-Upper pipe head, 11-Lower pipe head, 12-Liquid reservoir, 13-Connecting ring, 14-Cylinder cover, 15-Hydraulic cylinder, 16-Base, 17-Plug-in post, 18-Plug-in sleeve, 19-Handle, 20-Piston. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a valve pressure testing device, including a pressure testing pipe 1, a first blind plate 2 installed at one end of the pressure testing pipe 1, a detachable connecting pipe 7 installed at the end of the pressure testing pipe 1 away from the first blind plate 2, a second blind plate 9 installed at the end of the connecting pipe 7 away from the pressure testing pipe 1, a pressure gauge 8 installed at the upper part of the outer surface of the end of the connecting pipe 7 near the second blind plate 9, and a vertically arranged liquid storage cylinder 12 installed at the lower part of the outer surface of the connecting pipe 7, wherein a lower pipe head 11 is installed at the middle part of the upper surface of the liquid storage cylinder 12, and an upper pipe head is installed at the lower part of the outer surface of the connecting pipe 7. The lower pipe head 11 is connected to the upper pipe head 10 via a flange and bolts, completing the assembly of the liquid storage cylinder 12 and the connecting pipe 7. The pressure gauge 8 and the liquid storage cylinder 12 are installed on the connecting pipe 7, and the connecting pipe 7 is connected to the test pressure pipeline 1, which facilitates the placement of the pressure gauge 8 and the liquid storage cylinder 12 on one side of the test pressure pipeline 1 for easy operation. When the hydraulic cylinder 15 extends, it drives the piston 20 to squeeze the water in the liquid storage cylinder 12, allowing the water to enter the space formed by the test pressure pipeline 1 and the connecting pipe 7. The pressure gauge 8 detects the water pressure, thereby providing test data for the valve pressure test.

[0024] See Figures 1-3Multiple pipe joints 6 for connecting valves are evenly installed on the upper part of the upper surface of the test pipe 1. A cylinder cover 14 is installed at the lower end of the liquid storage cylinder 12. A connecting ring 13 is fitted on the lower end of the liquid storage cylinder 12 and fixed to it. The cylinder cover 14 is connected to the connecting ring 13 by multiple bolts, which facilitates the disassembly of the cylinder cover 14 and the liquid storage cylinder 12. A vertically arranged hydraulic cylinder 15 is installed in the middle of the lower surface of the cylinder cover 14. The movable end of the hydraulic cylinder 15 passes through the cylinder cover 14 and is equipped with a piston 20. The piston 20 is slidably installed in the liquid storage cylinder 12. The liquid storage cylinder 12 at the lower part of the connecting pipe 7 is connected to the test pipe 1. Then, the valve to be tested is installed at the pipe joint 6 at the upper part of the outer surface of the test pipe 1. After the pressure test is completed, the hydraulic cylinder 15 drives the piston 20 to move down, so that the water in the test pipe 1 and the valve flows back into the liquid storage cylinder 12, realizing the back pumping of the test water source, avoiding residual water from dripping onto the ground when the valve is disassembled, reducing water waste, and helping to maintain the cleanliness of the working environment.

[0025] See Figure 1 , Figure 2 and Figure 4 Two supports 3 are installed on the lower part of the outer surface of the test pipe 1. The supports 3 are U-shaped, and bases 16 are installed at both ends of the supports 3. Multiple foot holes are opened on the upper surface of the bases 16. A vertically arranged baffle 4 is provided on one side of the test pipe 1. Two plug-in posts 17 are installed at the lower end of the baffle 4. The plug-in posts 17 have notches at the upper end, so that the baffle 4 can be installed in the notches, increasing the connection range between the baffle 4 and the plug-in posts 17. Plug-in sleeves 18 are installed on the upper surface of the horizontal part of the two supports 3. The two plug-in posts 17 are respectively inserted into the two plug-in sleeves 18. A sponge block 5 is provided on the side of the baffle 4 facing the test pipe 1. Block 5 is connected to the baffle plate 4 via Velcro. Two symmetrically arranged handles 19 are installed on the side of the baffle plate 4 away from the test pipe 1. The handles 19 have a U-shaped structure, allowing the plug-in post 17 to be inserted into the plug-in sleeve 18, thereby completing the insertion of the baffle plate 4 and the bracket 3. Personnel stand on the side of the baffle plate 4 away from the test pipe 1. Under the protection of the baffle plate 4, water splashed from the connection between the valve and the pipe joint 6 or the valve during the pressure test is prevented from splashing onto the human body, thus improving safety. When the splashed water hits the baffle plate 4, it first contacts the sponge block 5, thereby reducing the diffusion range of the water splashed onto the baffle plate 4.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve pressure testing device, comprising a pressure testing pipeline (1), characterized in that: One end of the pressure test pipe (1) is equipped with a first blind plate (2). The end of the pressure test pipe (1) away from the first blind plate (2) is equipped with a detachable connecting pipe (7). The end of the connecting pipe (7) away from the pressure test pipe (1) is equipped with a second blind plate (9). Multiple pipe joints (6) for connecting valves are evenly installed on the upper part of the upper surface of the pressure test pipe (1). A pressure gauge (8) is installed on the upper part of the outer surface of the connecting pipe (7) near the second blind plate (9). A vertically arranged liquid storage cylinder (12) is installed on the lower part of the outer surface of the connecting pipe (7). A cylinder cover (14) is installed on the lower end of the liquid storage cylinder (12). A vertically arranged hydraulic cylinder (15) is installed on the middle part of the lower surface of the cylinder cover (14). The movable end of the hydraulic cylinder (15) passes through the cylinder cover (14) and is equipped with a piston (20). The piston (20) is slidably installed inside the liquid storage cylinder (12).

2. The valve pressure testing device according to claim 1, characterized in that: Two supports (3) are installed on the lower part of the outer surface of the test pipe (1). The supports (3) are U-shaped structures. Both ends of the supports (3) are equipped with bases (16). Multiple foot holes are opened on the upper surface of the bases (16).

3. The valve pressure testing device according to claim 2, characterized in that: The pressure test pipe (1) is provided with a vertically arranged baffle plate (4) on one side. Two plug-in pins (17) are installed at the lower end of the baffle plate (4). Plug-in sleeves (18) are installed on the upper surface of the horizontal part of the two brackets (3). The two plug-in pins (17) are respectively inserted into the two plug-in sleeves (18).

4. The valve pressure testing device according to claim 3, characterized in that: The side of the baffle plate (4) facing the pressure test pipe (1) is provided with a sponge block (5), and the sponge block (5) is connected to the baffle plate (4) by Velcro.

5. A valve pressure testing device according to claim 3, characterized in that: Two symmetrically arranged handles (19) are installed on the side of the baffle plate (4) away from the pressure test pipe (1), and the handles (19) are U-shaped.

6. A valve pressure testing device according to claim 3, characterized in that: The upper end of the plug post (17) is provided with a notch, and the liquid baffle (4) is installed in the notch.

7. A valve pressure testing device according to claim 1, characterized in that: The lower pipe head (11) is installed at the middle of the upper surface of the liquid storage cylinder (12), and the upper pipe head (10) is installed at the lower part of the outer surface of the connecting pipe (7). The lower pipe head (11) is connected to the upper pipe head (10) by means of flange and bolt.

8. A valve pressure testing device according to claim 1, characterized in that: The lower end of the liquid storage cylinder (12) is fitted with a connecting ring (13) that is fixed to the liquid storage cylinder (12), and the cylinder cover (14) is connected to the connecting ring (13) by multiple bolts.

Images