High-pressure-difference-resistant valve testing device

Abstract

The utility model relates to a high-pressure-difference-resistant valve testing device which comprises a testing table, a water tank is arranged at the lower end of the testing table, a lower clamping seat is installed on the testing table, the lower end of the lower clamping seat is connected with a water pumping pipe extending into the water tank downwards, and a water pumping assembly is installed on the water pumping pipe. The lower clamping seat is symmetrically provided with fixing assemblies on the two sides of the water pumping pipe; the lower clamping seat is provided with a leakage-proof assembly, the upper end of the test board is fixedly connected with a lifting air cylinder, a piston rod of the lifting air cylinder is fixedly connected with an upper pressing plate, and the upper pressing plate is provided with a flow guide assembly. When the water pressure in the test valve exceeds a critical value and water leaks, the flow guide assembly sucks the leaked water back into the water tank; after the test is finished, an experimenter opens the test valve, so that water in the test valve returns to the water tank again through the flow guide assembly, and waste of water resources is avoided.

Description

Technical Field

[0001] The utility model relates to a high-pressure resistant valve, in particular to a high-pressure differential resistant valve testing device. Background Art

[0002] High-pressure valves have been widely used in superhard material manufacturing, chemical industry, petrochemical industry, processing technology, isostatic pressing, ultra-high static pressure extrusion, powder metallurgy, metal forming, geophysics, geological research and other fields. At present, people on the market often use pressure testing mechanisms when testing the pressure of high-pressure valves.

[0003] However, most pressure test mechanisms do not have the function of testing high-pressure valves of different sizes, which increases the difficulty of testing valves of different sizes. In this regard, a pressure test mechanism for high-pressure valve testing with announcement number CN219244978U is provided with a detachable and replaceable connection disk, so that the experimenter can replace the corresponding connection disk according to the size of the different valves, and then test the critical value of the high-pressure strength of the valve by injecting water into the valve. However, the patent does not have a water resource recovery device, and the water in the valve cannot be recovered well after the test, which will cause a certain waste of resources. Utility Model Content

[0004] The utility model provides a high pressure difference resistant valve testing device, which solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is implemented as follows: a high pressure difference resistant valve test device, comprising a test bench, a water tank is provided at the lower end of the test bench, a lower clamping seat is installed on the test bench, a water pumping pipe extending downward into the water tank is connected to the lower end of the lower clamping seat, and a water pumping assembly is installed on the water pumping pipe;

[0006] The lower clamping seat is symmetrically provided with fixing components on both sides of the water pumping pipe;

[0007] The lower clamping seat is provided with a leak-proof component;

[0008] The upper end of the test bench is fixedly connected with a lifting cylinder, the piston rod of the lifting cylinder is fixedly connected with an upper pressing plate, and the upper pressing plate is provided with a flow guide component.

[0009] Preferably: the fixing assembly comprises an arc-shaped clamp and a threaded shaft;

[0010] The threaded shaft is rotatably connected to one end of the arc clamp away from the water pumping pipe, and the arc clamp slides on the upper end of the lower clamping seat. A connecting plate is fixedly connected to the lower clamping seat, and a threaded hole is opened on the connecting plate. The threaded shaft is threadedly connected to the threaded hole.

[0011] Preferably, the anti-leakage component comprises a rubber layer, and the rubber layer is fixedly connected to the lower clamping seat.

[0012] Preferably: the anti-leakage component includes a plurality of metal rings;

[0013] The lower clamping seat is provided with a content groove, the metal ring is placed in the content groove, and the upper end of the metal ring is fixedly connected with a rubber ring.

[0014] Preferably: the pumping assembly comprises a first pumping pump and a lower flow meter;

[0015] The lower flow meter is installed on the water pumping pipe, and the first water pump is installed below the lower flow meter.

[0016] Preferably: the diversion assembly includes a second water pump and a diversion hose;

[0017] An inner groove is provided in the upper pressing plate, one end of the inner groove passes through the lower end surface of the upper pressing plate, the other end of the inner groove is connected to the guide hose, and an upper flow meter is installed in the inner groove;

[0018] The test bench is fixedly connected with a water supply pipe communicating with the water tank, one end of the guide hose away from the inner tank is fixedly connected to the water supply pipe, and the second water pump is installed on the water supply pipe and located below the guide hose.

[0019] Preferably: the water tank is provided with a water inlet pipe and a water outlet pipe respectively, and the water inlet pipe and the water outlet pipe are both provided with a one-way valve.

[0020] In summary, the beneficial effects of the utility model are:

[0021] When the water pressure in the test valve exceeds the critical value and water leaks, the diversion component sucks the leaked water back into the water tank;

[0022] After the test, the experimenter opens the test valve to allow the water in the test valve to return to the water tank through the diversion component to avoid wasting water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic cross-sectional structure diagram of Example 1;

[0026] Figure 3 is a schematic cross-sectional structure diagram of Example 2;

[0027] Figure 4 for Figure 3 A partial enlarged schematic diagram in the middle;

[0028] Figure 5 It is a structural schematic diagram of the fixing component in the utility model.

[0029] Numbers in the figure: 11, test bench; 12, water tank; 13, lower clamping seat; 14, inner groove; 15, water pipe; 16, lifting cylinder; 17, upper pressure plate; 18, arc clamp; 19, threaded shaft; 20, connecting plate; 21, rubber layer; 22, metal ring; 23, first water pump; 24, lower flow meter; 25, second water pump; 26, guide hose; 27, inner groove; 28, water delivery pipe; 29, water inlet pipe; 30, water outlet pipe; 31, upper flow meter. DETAILED DESCRIPTION

[0030] The following will be combined with the attached embodiment of the utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] like Figures 1 to 5 As shown, a high pressure difference resistant valve testing device comprises a test bench 11, a water tank 12 is provided at the lower end of the test bench 11, and a water inlet pipe 29 and a water outlet pipe 30 are respectively provided on the water tank 12, and a one-way valve is provided on the water inlet pipe 29 and the water outlet pipe 30 to prevent the water tank 12 from leaking, and a lower clamping seat 13 is installed on the test bench 11, and a water pumping pipe 15 extending downward into the water tank 12 is connected to the lower end of the lower clamping seat 13, and a water pumping assembly is installed on the water pumping pipe 15;

[0033] The lower clamping seat 13 is symmetrically provided with fixing components on both sides of the water pumping pipe 15;

[0034] The lower clamping seat 13 is provided with a leak-proof component;

[0035] A lifting cylinder 16 is fixedly connected to the upper end of the test bench 11 , an upper pressing plate 17 is fixedly connected to the piston rod of the lifting cylinder 16 , and a flow guide component is provided on the upper pressing plate 17 .

[0036] The working principle of the utility model is as follows: the experimenter fixes the test valve (the test valve is in a closed state during the test) on the lower clamping seat 13 through the fixing assembly and the upper pressure plate 17, and then pumps the water in the water tank 12 into the test valve through the pumping assembly. When the upper end of the test valve starts to leak, the diversion assembly pumps the leaked water back into the water tank 12;

[0037] After the test is finished, the experimenter opens the test valve, and the diversion component draws the water in the test valve back into the water tank 12 to ensure the recycling of water and avoid wasting water resources.

[0038] The fixing assembly includes an arc clamp 18 and a threaded shaft 19, and the specific structure of the fixing assembly is: the threaded shaft 19 is rotatably connected to the end of the arc clamp 18 away from the water pumping pipe 15, and the arc clamp 18 slides on the upper end of the lower clamping seat 13, and a connecting plate 20 is fixedly connected to the lower clamping seat 13, and a threaded hole is opened on the connecting plate 20, and the threaded shaft 19 is threadedly connected to the threaded hole.

[0039] Before starting the test, the experimenter places one end of the test valve on the lower clamping seat 13 and covers the water pumping pipe 15, and then rotates the threaded shaft 19 to move the arc clamp 18 toward the test valve and press it on the side wall of the test valve, thereby fixing the lower end of the test valve.

[0040] After the lower end of the test valve is fixed, the lifting cylinder 16 drives the upper pressure plate 17 to press the upper end of the test valve, thereby achieving the purpose of fixing the upper end of the test valve. The above structure ensures that when water flows into the test valve, the test valve will not be displaced due to the impact force of the water flow.

[0041] The anti-leakage component includes a rubber layer 21, which is fixedly connected to the lower clamping seat 13. The lower end of the test valve abuts against the rubber layer 21, thereby preventing water in the water pumping pipe 15 from leaking from the lower end of the test valve.

[0042] Here, embodiment 2 is proposed, wherein the anti-leakage assembly includes a plurality of metal rings 22;

[0043] The lower clamping seat 13 is provided with a content groove 14, and the metal ring 22 is placed in the content groove 14, and a rubber ring is fixedly connected to the upper end of the metal ring 22. Different from the embodiment 1, the embodiment 2 needs to put the lower end of the test valve into the content groove 14 first, and put a plurality of metal rings 22 of different diameters into the content groove 14 according to the size of the flange of the test valve, until the metal ring 22 is pressed on the outer surface of the flange of the test valve, and the rubber ring at the upper end of the metal ring 22 is pressed against the flange of the test valve, so as to achieve the purpose of preventing water leakage, and the metal ring 22 is not easily crushed by the flange compared with the rubber layer 21, so as to ensure the service life of the test equipment, and then the fixing assembly clamps the lower end of the test valve to prevent it from moving during the test process.

[0044] The pumping assembly includes a first pump 23 and a lower flow meter 24;

[0045] The lower flow meter 24 is installed on the water pumping pipe 15, and the first water pump 23 is installed below the lower flow meter 24. After the test valve is fixed, the first water pump 23 extracts water from the water tank 12 and transports it to the test valve. The lower flow meter 24 is used to detect the flow of water in the water pumping pipe 15 and transmit the data back to the control panel (not shown in the figure), so that after the test, the experimenter can calculate the high pressure critical value that the test valve can withstand through the data.

[0046] The flow guide assembly includes a second water pump 25 and a flow guide hose 26. The specific structure of the flow guide assembly is as follows: an inner groove 27 is provided in the upper pressure plate 17, one end of the inner groove 27 passes through the lower end surface of the upper pressure plate 17, the other end of the inner groove 27 is connected to the flow guide hose 26, and an upper flow meter 31 is installed in the inner groove 27;

[0047] In addition, a water supply pipe 28 communicating with the water tank 12 is fixedly connected to the test bench 11, one end of the guide hose 26 away from the inner groove 27 is fixedly connected to the water supply pipe 28, and the second water pump 25 is installed on the water supply pipe 28 and located below the guide hose 26.

[0048] The working principle of the diversion component is as follows: during the test, the second water pump 25 is in a closed state. When the upper end of the test valve leaks, the second water pump 25 is started, and the leaked water is sucked into the inner tank 27, thereby ensuring that the water does not leak out of the test valve. After the water flows through the upper flow meter 31, the upper flow meter 31 records the data and transmits it back to the control panel, so that the experimenter can more intuitively find the leakage of the test valve;

[0049] After the test is finished, the experimenter opens the test valve, and the second water pump 25 pumps the water in the test valve back into the water tank 12 to ensure the recycling of water and avoid wasting water resources.

[0050] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high pressure differential resistant valve testing device, comprising a test bench (11), characterized in that: A water tank (12) is provided at the lower end of the test bench (11), a lower clamping seat (13) is mounted on the test bench (11), a water pumping pipe (15) extending downward into the water tank (12) is connected to the lower end of the lower clamping seat (13), and a water pumping assembly is mounted on the water pumping pipe (15); The lower clamping seat (13) is symmetrically provided with fixing components on both sides of the water pumping pipe (15); The lower clamping seat (13) is provided with a leak-proof component; The upper end of the test bench (11) is fixedly connected to a lifting cylinder (16), the piston rod of the lifting cylinder (16) is fixedly connected to an upper pressure plate (17), and a flow guide component is provided on the upper pressure plate (17).

2. A high pressure differential valve testing device according to claim 1, characterized in that: The fixing assembly comprises an arc-shaped clamp (18) and a threaded shaft (19); The threaded shaft (19) is rotatably connected to an end of the arc-shaped clamp (18) away from the water pumping pipe (15); the arc-shaped clamp (18) slides on the upper end of the lower clamping seat (13); a connecting plate (20) is fixedly connected to the lower clamping seat (13); a threaded hole is formed on the connecting plate (20); and the threaded shaft (19) is threadedly connected to the threaded hole.

3. The high pressure differential valve testing device according to claim 1, characterized in that: The anti-leakage component comprises a rubber layer (21), and the rubber layer (21) is fixedly connected to the lower clamping seat (13).

4. The high pressure differential valve testing device according to claim 1, characterized in that: The anti-leakage component includes a plurality of metal rings (22); The lower clamping seat (13) is provided with a content groove (14), the metal ring (22) is placed in the content groove (14), and the upper end of the metal ring (22) is fixedly connected to a metal ring.

5. The high pressure differential resistant valve testing device according to claim 1, characterized in that: The water pumping assembly comprises a first water pump (23) and a lower flow meter (24); The lower flow meter (24) is installed on the water pumping pipe (15), and the first water pump (23) is installed below the lower flow meter (24).

6. The high pressure differential resistant valve testing device according to claim 1, characterized in that: The diversion assembly comprises a second water pump (25) and a diversion hose (26); An inner groove (27) is provided in the upper pressing plate (17), one end of the inner groove (27) passes through the lower end surface of the upper pressing plate (17), the other end of the inner groove (27) is connected to the flow guiding hose (26), and an upper flow meter (31) is installed in the inner groove (27); The test bench (11) is fixedly connected to a water supply pipe (28) which is in communication with the water tank (12); one end of the guide hose (26) which is away from the inner tank (27) is fixedly connected to the water supply pipe (28); and the second water pump (25) is installed on the water supply pipe (28) and is located below the guide hose (26).

7. The high pressure differential resistant valve testing device according to claim 1, characterized in that: The water tank (12) is provided with a water inlet pipe (29) and a water outlet pipe (30), respectively, and both the water inlet pipe (29) and the water outlet pipe (30) are provided with a one-way valve.

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