Multipurpose pressure test equipment

Abstract

The utility model relates to the technical field of water pressure detection equipment, and discloses multipurpose pressure test equipment which comprises a pressure test device base, the upper surface of the pressure test device base is fixedly connected with a pressure test table, the upper surface of the pressure test table is fixedly connected with a lower sealing seat, and the top of the lower sealing seat is provided with an upper sealing seat. A check valve is arranged between the upper sealing seat and the lower sealing seat, the top of the pressure test device base is fixedly connected with a lifting platform, the lower surface of the lifting platform is fixedly connected with a liquid booster pump, a lower water inlet pipeline is arranged in the lower sealing seat, and an upper water inlet pipeline is arranged in the upper sealing seat. According to the utility model, through the bidirectional switching design of the upper water inlet pipeline and the lower water inlet pipeline, the problem that a valve plate needs to be manually assisted to reset when a traditional single lower water inlet check valve is detected is avoided, efficient detection of different types of valves is realized, the operation process is simplified, and the safety is remarkably improved.

Description

A multi-purpose pressure testing device Technical Field

[0001] This utility model relates to the technical field of water pressure testing equipment, and in particular to a multi-purpose pressure testing device. Background Technology

[0002] Hydraulic pressure testing equipment is used to test whether pipelines, containers, and other equipment can remain stable and safe under high water pressure conditions. It simulates real-world water pressure conditions to detect leaks, deformation, or other safety hazards. This type of equipment is widely used in industries such as construction, petroleum, and chemicals to ensure that various pressure vessels and pipelines meet relevant safety standards and quality requirements before being put into use. Hydraulic pressure testing equipment can accurately measure water pressure and provide real-time feedback, helping testing personnel to promptly identify problems and ensure the reliability and safety of the equipment.

[0003] Existing water pressure testing equipment typically uses a bottom-inlet method to perform water pressure tests on conventional valves such as centerline butterfly valves, double eccentric butterfly valves, and triple eccentric butterfly valves to check their sealing performance. However, for special valves such as check valves, because the valve plate is far from the sealing position when in the neutral position, small-sized check valves require manual assistance to return the valve plate to the sealing position, which can easily cause test water to overflow and splash, polluting the working environment. For large-sized check valves, manual assistance poses serious safety hazards and makes it impossible to complete normal water pressure testing. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a multi-purpose pressure testing device, which aims to improve the problem that existing water pressure testing equipment has serious safety hazards due to manual assistance and cannot complete normal water pressure testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-purpose pressure testing device, including a pressure testing device base, a pressure testing platform fixedly connected to the upper surface of the pressure testing device base, a lower sealing seat fixedly connected to the upper surface of the pressure testing platform, an upper sealing seat provided on the top of the lower sealing seat, a check valve provided between the upper sealing seat and the lower sealing seat, a lifting platform fixedly connected to the top of the pressure testing device base, and a liquid booster pump fixedly connected to the lower surface of the lifting platform.

[0006] Furthermore, the lower sealing seat is provided with a lower water inlet pipe, and the upper sealing seat is provided with an upper water inlet pipe. Both the upper and lower water inlet pipes are made of high-pressure hoses.

[0007] Furthermore, both the upper sealing seat and the lower sealing seat are provided with sealing rings inside, and both the upper sealing seat and the lower sealing seat are provided with sealing seat bodies inside.

[0008] Furthermore, both the upper sealing seat and the lower sealing seat are provided with inlet and outlet threaded holes.

[0009] Furthermore, the outer walls of both the upper and lower sealing seats are coated with epoxy paint, and the interiors of both the upper and lower sealing seats are coated with polytetrafluoroethylene paint.

[0010] Furthermore, the lower sealing seat has a high-pressure limiting valve at the top, a high-pressure filter is fixedly connected to the bottom of the liquid booster pump, and a speed regulating valve is provided at the bottom of the liquid booster pump.

[0011] Furthermore, one end of the speed control valve is fixedly connected inside the high-pressure filter, and the other end of the speed control valve is fixedly connected inside the lower sealing seat.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, the upper and lower sealing seats and sealing rings are automatically pressed together by the pressure of the liquid booster pump, forming a reliable seal without manual operation, preventing the overflow and pollution of test water during testing, and eliminating the risk of pinching hands due to manual assistance with large-sized check valves; the anti-corrosion coating of the sealing seat and the high-pressure hose are compatible with the installation of different valves, ensuring that the equipment itself is leak-free and providing a stable and closed environment for water pressure testing.

[0014] 2. In this utility model, the upper and lower water inlet pipes can be switched. The lower water inlet detects defects in the valve body and valve plate seal of conventional valves, while the upper water inlet uses the weight of the valve plate and water pressure to push the check valve plate to the closed position, replacing manual operation. The high-pressure limiting valve and speed regulating valve ensure that the pressure is safe and controllable. One set of equipment is compatible with the detection of multiple types of valves, improving efficiency and simplifying operation, and achieving dual accurate detection of valve body defects and valve plate seal. Attached Figure Description

[0015] Figure 1 is a perspective view of a multi-purpose pressure testing device proposed in this utility model;

[0016] Figure 2 is a side view of a multi-purpose pressure testing device proposed in this utility model;

[0017] Figure 3 is a schematic diagram of the upper sealing seat structure of a multi-purpose pressure testing device proposed in this utility model;

[0018] Figure 4 is a schematic diagram of the lower sealing seat structure of a multi-purpose pressure testing device proposed in this utility model;

[0019] Figure 5 is a schematic diagram of the liquid booster pump structure of a multi-purpose pressure testing device proposed in this utility model.

[0020] Legend:

[0021] 1. Pressure testing device base; 2. Pressure testing platform; 3. Lower sealing seat; 4. Check valve; 5. Upper sealing seat; 51. Sealing ring; 52. Sealing seat body; 53. Inlet and outlet threaded holes; 6. Epoxy coating; 7. Polytetrafluoroethylene coating; 8. Hanging platform; 9. Liquid booster pump; 10. High-pressure pressure limiting valve; 11. High-pressure filter; 12. Speed ​​control valve. Detailed Implementation

[0022] 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.

[0023] Referring to Figures 1-5, one embodiment of this utility model provides a multi-purpose pressure testing device, including a pressure testing device base 1, a pressure testing platform 2 fixedly connected to the upper surface of the pressure testing device base 1, a lower sealing seat 3 fixedly connected to the upper surface of the pressure testing platform 2, an upper sealing seat 5 provided on the top of the lower sealing seat 3, a check valve 4 provided between the upper sealing seat 5 and the lower sealing seat 3, a lifting platform 8 fixedly connected to the top of the pressure testing device base 1, a liquid booster pump 9 fixedly connected to the lower surface of the lifting platform 8, a lower water inlet pipe provided inside the lower sealing seat 3, an upper water inlet pipe provided inside the upper sealing seat 5, both the upper and lower water inlet pipes being high-pressure hoses, and the upper sealing seat 5 and the lower sealing seat 3 being connected to each other. Each sealing seat 3 is equipped with a sealing ring 51 inside. Both the upper sealing seat 5 and the lower sealing seat 3 are equipped with a sealing seat body 52 inside. Both the upper sealing seat 5 and the lower sealing seat 3 are equipped with inlet and outlet threaded holes 53 inside. Both the upper sealing seat 5 and the lower sealing seat 3 are equipped with epoxy coating 6 on their outer walls. Both the upper sealing seat 5 and the lower sealing seat 3 are equipped with polytetrafluoroethylene coating 7 inside. The lower sealing seat 3 has a high-pressure limiting valve 10 at its top. The liquid booster pump 9 is fixedly connected to a high-pressure filter 11 at its bottom. The liquid booster pump 9 is equipped with a speed regulating valve 12 at its bottom. One end of the speed regulating valve 12 is fixedly connected to the inside of the high-pressure filter 11, and the other end of the speed regulating valve 12 is fixedly connected to the inside of the lower sealing seat 3.

[0024] Specifically, the multi-purpose pressure testing equipment uses the pressure testing device base 1 as a supporting foundation. The pressure testing table 2 is fixed on the base, supporting the lower sealing seat 3. The top of the lower sealing seat 3 mates with the upper sealing seat 5. A check valve 4 to be tested is installed between the two, forming a closed testing space. The sealing rings 51 inside the upper and lower sealing seats are tightly fitted to both ends of the valve with the sealing seat body 52. ​​The pipeline connection is achieved through the inlet and outlet threaded holes 53. The outer epoxy coating 6 and the inner polytetrafluoroethylene coating 7 respectively enhance corrosion resistance and sealing performance, providing a stable physical environment for testing. The liquid booster pump 9 fixed on the platform 8 serves as the power source. The high-pressure filter 11 at its bottom filters liquid impurities. After the flow rate is controlled by the speed regulating valve 12, the high-pressure liquid is delivered to the lower inlet pipe of the lower sealing seat 3 or the upper inlet pipe of the upper sealing seat 5 (both use high-pressure hoses to adapt to different installation requirements). The cylinder pressure, through the tight compression of the upper and lower sealing seats, causes the sealing ring 51 to fully deform and fill the gap, ensuring that there is no leakage at the connection parts of the equipment itself. According to the valve type Depending on the type of valve, the water inlet method is switched. When testing conventional valves such as centerline butterfly valves, high-pressure liquid is injected from below the valve through the lower water inlet pipe. The water pressure acts on the inside of the valve body to detect whether there are defects such as sand holes or cracks that cause leakage. At the same time, it verifies the sealing performance of the valve plate and the valve body sealing surface when the valve is closed. When testing check valve 4, the switch is switched to the upper water inlet pipe, and high-pressure liquid is injected from above the valve. The water pressure itself pushes the valve plate of check valve 4 to automatically return to the sealing position. Then, the sealing effect of the valve plate and the sealing surface and the integrity of the valve body are tested. The high-pressure limiting valve 10 on the top of the lower sealing seat 3 monitors the system pressure in real time to prevent the risk of overpressure and ensure test safety. Throughout the process, the pressure provided by the liquid booster pump 9 first creates a leak-free closed space through the sealing structure (sealing ring 51, sealing seat), and then the water pressure of different water inlet paths is used to test the valve body defects and valve plate sealing performance of conventional valves and check valve 4 respectively. Finally, efficient and safe pressure testing of multiple types of valves is achieved.

[0025] Working Principle: The multi-purpose pressure testing equipment uses the pressure testing device base 1 as a supporting foundation. The pressure testing platform 2 fixed above it supports the lower sealing seat 3. The top of the lower sealing seat 3 mates with the upper sealing seat 5, and the check valve 4 to be tested is installed between the two, forming a closed testing space. The sealing rings 51 inside the upper and lower sealing seats are tightly fitted to both ends of the valve with the sealing seat body 52, and the pipeline connection is achieved by connecting with the inlet and outlet threaded holes 53. The epoxy coating 6 on the outer wall and the polytetrafluoroethylene coating 7 on the inner wall enhance corrosion resistance and sealing performance, respectively, providing a stable physical environment for testing. The liquid booster pump 9, fixed on the suspended platform 8, serves as the power source. A high-pressure filter 11 at its bottom filters impurities from the liquid. After the flow rate is controlled by the speed regulating valve 12, the high-pressure liquid is delivered to the lower inlet pipe of the lower sealing seat 3 or the upper inlet pipe of the upper sealing seat 5 (both using high-pressure hoses to accommodate different installation requirements). On one hand, the cylinder pressure, through the tight sealing of the upper and lower sealing seats, causes the sealing ring 51 to fully deform and fill the gap, ensuring no leakage at the connection points of the equipment. On the other hand, the water inlet method is switched according to the valve type to detect the centerline. When testing conventional valves such as butterfly valves, high-pressure liquid is injected from below the valve through the lower inlet pipe. The water pressure acts on the inside of the valve body to detect leaks caused by defects such as sand holes and cracks, and to verify the sealing performance of the valve plate and valve body sealing surface when the valve is closed. When testing check valve 4, the switch is used to switch to the upper inlet pipe, and high-pressure liquid is injected from above the valve. The valve plate's own weight and the thrust of the water pressure cause the check valve 4 valve plate to automatically return to the sealing position, thereby testing the sealing effect between the valve plate and the sealing surface and the integrity of the valve body. The high-pressure limiting valve 10 on the top of the lower sealing seat 3 monitors the system pressure in real time to prevent overpressure risks and ensure test safety. Throughout the process, the pressure provided by the liquid booster pump 9 first creates a leak-free closed space through the sealing structure (sealing ring 51, sealing seat), and then the water pressure from different inlet paths is used to detect valve body defects and valve plate sealing performance of conventional valves and check valve 4, ultimately achieving efficient and safe pressure testing of multiple types of valves.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-purpose pressure testing device, comprising a pressure testing device base (1), characterized in that: A test platform (2) is fixedly connected to the upper surface of the test pressure device base (1). A lower sealing seat (3) is fixedly connected to the upper surface of the test platform (2). An upper sealing seat (5) is provided on the top of the lower sealing seat (3). A check valve (4) is provided between the upper sealing seat (5) and the lower sealing seat (3). A lifting platform (8) is fixedly connected to the top of the test pressure device base (1). A liquid booster pump (9) is fixedly connected to the lower surface of the lifting platform (8).

2. A multipurpose pressure testing apparatus as claimed in claim 1, wherein: The lower sealing seat (3) is provided with a lower water inlet pipe, and the upper sealing seat (5) is provided with an upper water inlet pipe. Both the upper and lower water inlet pipes are made of high-pressure hoses.

3. A multipurpose pressure testing apparatus as claimed in claim 2, wherein: Both the upper sealing seat (5) and the lower sealing seat (3) are provided with sealing rings (51), and both the upper sealing seat (5) and the lower sealing seat (3) are provided with sealing seat bodies (52).

4. A multipurpose pressure testing apparatus as claimed in claim 3, wherein: Both the upper sealing seat (5) and the lower sealing seat (3) are provided with inlet and outlet threaded holes (53).

5. A multi-purpose pressure testing device according to claim 4, characterized in that: The outer walls of the upper sealing seat (5) and the lower sealing seat (3) are both coated with epoxy coating (6), and the interiors of the upper sealing seat (5) and the lower sealing seat (3) are coated with polytetrafluoroethylene coating (7).

6. The multi-purpose pressure testing equipment according to claim 2, characterized in that: The lower sealing seat (3) has a high pressure limiting valve (10) at the top, the liquid booster pump (9) is fixedly connected to a high pressure filter (11) at the bottom, and the liquid booster pump (9) is provided with a speed regulating valve (12) at the bottom.

7. A multi-purpose pressure testing device according to claim 6, characterized in that: One end of the speed regulating valve (12) is fixedly connected inside the lower sealing seat (3), and the other end of the speed regulating valve (12) is fixedly connected inside the liquid booster pump (9).

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