Liquid metal valve pressure test equipment

Abstract

The utility model discloses liquid metal valve pressure test equipment which comprises a workbench, a temperature simulation bin is arranged on one side of the upper end of the workbench, a plurality of sliding grooves are formed in the upper end of the workbench in a penetrating mode, a material pushing plate is arranged on the sliding grooves in a sliding mode, and the material pushing plate can slide into or slide out of the temperature simulation bin along the sliding grooves; the upper end of the material pushing plate is linearly provided with a plurality of positioning backflow assemblies corresponding to the extending directions of the sliding grooves, the positioning backflow assemblies are provided with to-be-tested valve bodies, and the positioning backflow assemblies are used for positioning the to-be-tested valve bodies and recycling testing liquid in the to-be-tested valve bodies after pressure testing is finished. And a pressure test assembly is arranged at the top in the temperature simulation bin and corresponds to the positioning backflow assembly, and is used for pressing and testing the pressure of each valve body to be tested.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve test technical field, concretely relates to a liquid metal valve pressure test equipment. BACKGROUND

[0002] The liquid metal valve pressure test equipment refers to the equipment that uses liquid metal as test liquid to test the sealing performance, pressure bearing capacity and other performances of the valve.

[0003] The existing liquid pressure test equipment can only test the valve based on the current external environment when testing the liquid metal valve, and cannot simulate the use of the valve in high-temperature and low-temperature scenarios, resulting in that the qualified valve may crack or leak when applied to a specific environment. In addition, the existing pressure test equipment cannot automatically recover the test liquid in the valve body after the pressure test is completed, resulting in low test efficiency.

[0004] Therefore, it is necessary to provide a liquid metal valve pressure test equipment to solve the problems mentioned in the background. UTILITY MODEL CONTENT

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a liquid metal valve pressure test equipment, comprising: a workbench, a temperature simulation bin is arranged on one side of the upper end of the workbench, a plurality of sliding grooves are formed through the upper end of the workbench, a push plate is slidably arranged on the sliding grooves, and the push plate can slide into or out of the temperature simulation bin along the sliding grooves;

[0006] A plurality of positioning and backflow components are linearly installed on the upper end of the push plate and correspond to the extension direction of each sliding groove, a valve body to be tested is installed on the positioning and backflow component, the positioning and backflow component is used for positioning the valve body to be tested and recovering the test liquid in the valve body to be tested after the pressure test is completed;

[0007] A pressure test component is arranged in the temperature simulation bin corresponding to the positioning and backflow component, which is used for pressing and testing each valve body to be tested.

[0008] Preferably, the liquid inlet end and the liquid outlet end of the valve body to be tested are provided with limiting baffles, a tapered hole is formed in the middle of the limiting baffle, and the end of the tapered hole towards the inside of the valve body to be tested is a small-diameter end.

[0009] Preferably, the pressure test component comprises: a hydraulic cylinder, the hydraulic cylinder is vertically and downwardly fixed to the top of the temperature simulation bin corresponding to the positioning and backflow component, an upper plug is installed at the lower end of the hydraulic cylinder, the lower end of the upper plug is a conical structure, and is matched with the corresponding tapered hole, a flow channel is formed in the upper plug, and is used for injecting test liquid into the valve body to be tested;

[0010] The temperature simulation bin is externally provided with a liquid inlet pipe, and the outlet end of the liquid inlet pipe is connected with a plurality of hoses which are respectively connected with the flow channels.

[0011] Preferably, the lower end of the pushing plate is provided with a sliding block, and a plurality of sliding blocks are correspondingly arranged on the positioning backflow assembly.

[0012] Preferably, the positioning backflow assembly comprises:

[0013] An installation plate is fixedly arranged on the upper end of the pushing plate, a lower plug is arranged on the middle part of the upper end of the installation plate, a tapered part is arranged on the upper end of the lower plug and is matched with the corresponding tapered hole, and a plurality of backflow holes are uniformly arranged on the installation plate, the pushing plate and the sliding block in a vertical downward direction from the outer circumferential side of the lower plug.

[0014] A positioning cylinder is coaxially and spacedly arranged on the outer side of the lower plug, and the positioning cylinder is matched with the limiting baffle plate and is used for radially limiting the limiting baffle plate.

[0015] A plurality of supporting springs are circumferentially and uniformly arranged on the inner side of the positioning cylinder, the supporting springs are located between the inner wall of the positioning cylinder and the backflow holes, and the upper ends of the supporting springs are jointly connected with a ring plate.

[0016] Preferably, an elastic sleeve is arranged on the lower end of the ring plate, the lower end of the elastic sleeve is fixedly connected with the installation plate, and the elastic sleeve is located between the supporting springs and the backflow holes.

[0017] Preferably, a liquid collecting groove is jointly arranged on the lower end of each sliding groove, the bottom plate of the liquid collecting groove is gradually inclined downward toward one end of the temperature simulation bin, a liquid containing hopper is arranged below the temperature simulation bin and corresponds to the lowest end of the liquid collecting groove, the liquid containing hopper is arranged on the inner wall of the workbench and is located below the liquid collecting groove, and the liquid containing hopper is connected with a liquid return pipe.

[0018] Preferably, an electric telescopic rod is horizontally arranged on one side of the liquid collecting groove along the extension direction of the liquid collecting groove, one end of the electric telescopic rod is arranged on the end of the liquid collecting groove close to the liquid containing hopper, and the other end of the electric telescopic rod is arranged on the inner wall of the end of the workbench away from the liquid containing hopper.

[0019] Preferably, a heat source, a cold source and a temperature sensor are arranged in the temperature simulation bin.

[0020] Compared with the prior art, the liquid metal valve pressure test equipment has the following beneficial effects:

[0021] The utility model discloses a temperature simulation bin is set up to the test environment temperature of the valve body of being measured is adjusted, makes the valve body of being measured can test under different environmental temperature, is helpful to fully understand the use performance of the valve body of being measured under different environmental temperature, and reasonably selects the valve body of being measured, avoids the follow -up use to be influenced by environmental temperature, and the valve body cracking, leakage etc. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a kind of liquid metal valve pressure test equipment overall structure schematic diagram;

[0023] Figure 2 It is a kind of liquid metal valve pressure test equipment simulation bin sectional structure schematic diagram;

[0024] Figure 3 It is a kind of liquid metal valve pressure test equipment positioning backflow component structure schematic diagram;

[0025] Figure 4 It is a kind of liquid metal valve pressure test equipment pressure test state structure schematic diagram;

[0026] Figure 5 It is a kind of liquid metal valve pressure test equipment test liquid backflow state structure schematic diagram;

[0027] In the drawing: 1, workbench;2, temperature simulation bin;3, sliding slot;4, push plate;5, positioning backflow component;6, the valve body of being measured;7, limit baffle;8, bin door;9, liquid inlet pipe;10, back liquid pipe;11, hydraulic cylinder;12, upper plug;13, sliding block;14, liquid collecting tank;15, electric telescopic rod;16, liquid container;17, mounting plate;18, lower plug;19, positioning cylinder;20, support spring;21, ring plate;22, telescopic sleeve;71, taper hole. DETAILED DESCRIPTION

[0028] Please refer to Figures 1-5 The utility model provides a kind of liquid metal valve pressure test equipment, comprising: workbench 1, the temperature simulation bin 2 is set in the upper end one side of the workbench 1, the workbench 1 upper end is penetrated and is equipped with a plurality of sliding slots 3, the push plate 4 is slidably arranged on the sliding slot 3, the push plate 4 can be slid into or slid out of the temperature simulation bin 2 along the sliding slot 3;

[0029] The push plate 4 upper end is linearly installed with a plurality of positioning backflow components 5 corresponding to the extension direction of each sliding slot 3, the valve body 6 of being measured is installed on the positioning backflow component 5, the positioning backflow component 5 is used for positioning the valve body 6 of being measured, and the test liquid in the valve body 6 of being measured after pressure test is recycled;

[0030] The top of the temperature simulation bin 2 is provided with a pressure test assembly corresponding to the positioning backflow assembly 5, which is used to press and test each valve body 6.

[0031] The bin wall between the temperature simulation bin 2 and the other side of the workbench 1 is provided with an opening, and an automatic lifting bin door 8 is arranged at the opening, which is used to isolate the internal and external environments of the temperature simulation bin 2 and the push plate 4.

[0032] Further, the temperature simulation bin 2 is provided with a heat source and a cold source and a temperature sensor.

[0033] It should be explained that during testing, the valve body 6 to be tested is installed on the positioning backflow assembly 5, and the valve body 6 to be tested is pushed to the pressure test assembly below by moving the push plate 4, and then the valve body 6 to be tested is pressed and tested, and the sealing performance and pressure bearing capacity of the valve body 6 to be tested are tested. After the test is completed, the test liquid is automatically recycled by the positioning backflow assembly 5.

[0034] The temperature of the test environment is changed by the cold source or the heat source in the temperature simulation bin 2, so that the valve body 6 to be tested can be tested at different environmental temperatures, which helps to fully understand the use performance of the valve body 6 to be tested at different environmental temperatures, and reasonably select the valve body 6 to be tested. Avoid environmental temperature affecting subsequent use, causing valve body cracking, leakage and other problems.

[0035] Specifically, the cold source is a refrigeration unit, and the heat source is an electric heater.

[0036] Further, the inlet end and the outlet end of the valve body 6 to be tested are provided with a limiting baffle 7, a tapered hole 71 is formed in the middle of the limiting baffle 7, and the end of the tapered hole 71 towards the inside of the valve body 6 to be tested is a small diameter end.

[0037] The inlet end and the outlet end of the valve body 6 to be tested are limited by the limiting baffle 7, which facilitates quick sealing of the valve body 6 to be tested.

[0038] Specifically, the valve body 6 to be tested is a valve body with coinciding inlet end and outlet end axes, and during testing, the inlet end of the valve body 6 to be tested is the upper end and the outlet end is the lower end.

[0039] Further, the pressure test assembly comprises a hydraulic cylinder 11, which is vertically and downwardly fixed to the top of the temperature simulation bin 2 corresponding to the positioning backflow assembly 5. The lower end of the hydraulic cylinder 11 is provided with an upper plug 12, the lower end of the upper plug 12 is a conical structure, and is matched with the corresponding end tapered hole 71. A flow channel is formed in the upper plug 12, which is used to inject test liquid into the valve body 6 to be tested.

[0040] The temperature simulation bin 2 is provided with an inlet pipe 9 outside, and the outlet of the inlet pipe 9 is connected with several hoses which are connected with the flow channels respectively.

[0041] Specifically, the hose is an alloy steel hose.

[0042] Further, the lower end of the pushing plate 4 is provided with a sliding block 13, and the sliding block 13 is correspondingly provided with a plurality of positioning backflow components 5.

[0043] Preferably, the sliding block 13 can be a strip plate extending along the length direction of the sliding groove 3, and the positioning backflow component 5 is correspondingly arranged at the lower end of the sliding groove 3.

[0044] Further, the positioning backflow component 5 comprises:

[0045] An installation plate 17 is fixedly arranged at the upper end of the pushing plate 4, and a lower plug 18 is arranged at the middle of the upper end of the installation plate 17. The upper end of the lower plug 18 is provided with a tapered portion which is matched with the tapered hole 71 of the corresponding end, and a plurality of backflow holes are uniformly arranged on the outer circumferential side of the lower plug 18 and vertically downwardly penetrate the installation plate 17, the pushing plate 4 and the sliding block 13.

[0046] The outer side of the lower plug 18 is coaxially and spacedly provided with a positioning cylinder 19 which is matched with the limiting baffle 7 and is used for radially limiting the limiting baffle 7.

[0047] A plurality of supporting springs 20 are uniformly arranged on the inner side of the positioning cylinder 19 in the circumferential direction, and the supporting springs 20 are located between the inner wall of the positioning cylinder 19 and the backflow holes. The upper ends of the supporting springs 20 are jointly connected with a ring plate 21.

[0048] It should be explained that, during the test, the valve body 6 to be tested is placed on the ring plate 21 in the positioning cylinder 19, and the valve body 6 to be tested is radially limited by the positioning cylinder 19. When the pushing plate 4 moves to the set position in the temperature simulation bin 2, the bin door 8 is closed, the environmental temperature in the temperature simulation bin 2 is adjusted to the required experimental environmental temperature, and the hydraulic cylinder 11 is controlled to extend to drive the upper plug 12 to move downward, push the limiting baffle 7 to drive the valve body 6 to be tested to move downward, and compress the supporting springs 20, so that the upper plug 12 and the lower plug 18 respectively enter the tapered hole 71 of the limiting baffle 7 of the corresponding end, seal the inlet and outlet of the valve body 6 to be tested, and then the test liquid is injected into the valve body 6 to be tested through the externally arranged liquid storage tank via the hose and the upper plug 12, and the test is performed.

[0049] After the test is completed, the hydraulic cylinder 11 is controlled to be retracted to release the sealing of the valve body 6 to be tested. Under the elastic force of the supporting springs 20, the valve body 6 to be tested is lifted up, a channel is formed between the tapered hole 71 and the lower plug 18, the test liquid automatically flows out of the channel, and is automatically recycled through the backflow holes.

[0050] Specifically, detection units are arranged in the upper plug 12 and the lower plug 18, so that the sealing performance and pressure bearing performance of the valve body 6 to be tested can be monitored.

[0051] Further, a telescopic sleeve 22 is mounted at the lower end of the ring plate 21, the lower end of the telescopic sleeve 22 is fixedly connected with the mounting plate 17, and the telescopic sleeve 22 is located between the supporting spring 20 and the backflow hole.

[0052] The telescopic sleeve 22 is used to isolate the supporting spring 20, so as to avoid affecting the performance of the supporting spring 20 when the test liquid is recovered.

[0053] Further, a liquid collecting groove 14 is mounted at the lower end of each chute 3, the bottom plate of the liquid collecting groove 14 gradually inclines downward toward one end of the temperature simulation bin 2, a liquid container 16 is arranged below the temperature simulation bin 2 and corresponds to the lowest end of the liquid collecting groove 14, the liquid container 16 is mounted on the inner wall of the workbench 1 and is located below the liquid collecting groove 14, and the liquid container 16 is connected with a liquid return pipe 10.

[0054] It should be explained that the test liquid flowing out of each backflow hole is guided to the liquid container 16 through the liquid collecting groove 14, and then flows back to the liquid storage tank through the liquid return pipe 10, so that the test liquid is automatically recovered.

[0055] Preferably, the cross section of the liquid collecting groove 14 along the flow direction of the test liquid is in U-shaped or V-shaped structure.

[0056] Further, an electric telescopic rod 15 is horizontally arranged on one side of the liquid collecting groove 14 along the extension direction of the liquid collecting groove 14, one end of the electric telescopic rod 15 is mounted on the end of the liquid collecting groove 14 close to the liquid container 16, and the other end of the electric telescopic rod 15 is mounted on the inner wall of the workbench 1 away from the liquid container 16.

[0057] That is, the pushing plate 4 is driven to reciprocate by the electric telescopic rod 15.

[0058] In specific implementation, the valve body to be tested is mounted on the positioning and backflow assembly, the valve body to be tested is pushed to be directly below the pressure testing assembly by the pushing plate, the bin door is closed, the environmental temperature in the temperature simulation bin is adjusted to the required test environmental temperature, then the valve body to be tested is tightly sealed and test liquid is injected for pressure test, after the test is completed, the test liquid is automatically recovered by the positioning and backflow assembly, and the test efficiency is improved.

[0059] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pressure testing device for a liquid metal valve, characterized in that, include: A workbench (1) is provided with a temperature simulation chamber (2) on one side of the upper end of the workbench (1). Several sliding grooves (3) are opened through the upper end of the workbench (1). A pusher plate (4) is slidably arranged on the sliding groove (3). The pusher plate (4) can slide into or out of the temperature simulation chamber (2) along the sliding groove (3). The upper end of the pusher plate (4) is linearly installed with a number of positioning and reflux components (5) corresponding to the extension direction of each of the slide grooves (3). The positioning and reflux components (5) are equipped with valve bodies (6) to be tested. The positioning and reflux components (5) are used to position the valve bodies (6) to be tested and to recover the test liquid in the valve bodies (6) after the pressure test is completed. The temperature simulation chamber (2) is equipped with a pressure testing component at the top corresponding to the positioning reflux component (5), which is used to press and test each of the valve bodies (6) to be tested.

2. The liquid metal valve pressure testing device according to claim 1, characterized in that, Limiting baffles (7) are installed at the inlet and outlet ends of the valve body (6) to be tested. A conical hole (71) is provided in the middle of the limiting baffle (7), and the end of the conical hole (71) facing the inside of the valve body (6) to be tested is the small diameter end.

3. The liquid metal valve pressure testing device according to claim 2, characterized in that, The pressure testing assembly includes a hydraulic cylinder (11), which is vertically fixed to the top of the temperature simulation chamber (2) corresponding to the positioning and return assembly (5). An upper plug (12) is installed at the lower end of the hydraulic cylinder (11). The lower end of the upper plug (12) is a frustum structure and is adapted to the corresponding end of the cone hole (71). A flow channel is opened in the upper plug (12) for injecting test liquid into the valve body (6) to be tested. The temperature simulation chamber (2) is provided with an inlet pipe (9) on the outside. The output end of the inlet pipe (9) is connected to several hoses, which are respectively connected to the flow channel.

4. The liquid metal valve pressure testing device according to claim 2, characterized in that, The lower end of the pusher plate (4) is provided with a slider (13), and multiple sliders (13) are arranged corresponding to the positioning and return assembly (5).

5. The liquid metal valve pressure testing device according to claim 4, characterized in that, The positioning return component (5) includes: A mounting plate (17) is fixed on the upper end of the pusher plate (4). A lower plug (18) is provided in the middle of the upper end of the mounting plate (17). The upper end of the lower plug (18) is fitted with a tapered part that matches the tapered hole (71) at the corresponding end. Several return holes are evenly distributed on the outer periphery of the lower plug (18) that vertically penetrate the mounting plate (17), the pusher plate (4), and the slider (13). A positioning cylinder (19) is coaxially spaced on the outer side of the lower plug (18). The positioning cylinder (19) is adapted to the limiting baffle (7) and is used to radially limit the limiting baffle (7). The positioning cylinder (19) has several support springs (20) evenly distributed circumferentially on its inner side. The support springs (20) are located between the inner wall of the positioning cylinder (19) and the return hole. The upper ends of the support springs (20) are connected to a ring plate (21).

6. The liquid metal valve pressure testing device according to claim 5, characterized in that, A telescopic sleeve (22) is installed at the lower end of the ring plate (21). The lower end of the telescopic sleeve (22) is fixedly connected to the mounting plate (17). The telescopic sleeve (22) is located between the support spring (20) and the return hole.

7. The liquid metal valve pressure testing device according to claim 4, characterized in that, Each of the chutes (3) has a common liquid collection tank (14) installed at its lower end. The bottom plate of the liquid collection tank (14) gradually slopes downward toward the end of the temperature simulation chamber (2). A liquid holding hopper (16) is provided below the temperature simulation chamber (2) corresponding to the lowest end of the liquid collection tank (14). The liquid holding hopper (16) is installed on the inner wall of the workbench (1) and is located below the liquid collection tank (14). The liquid holding hopper (16) is connected to a return pipe (10).

8. The liquid metal valve pressure testing device according to claim 7, characterized in that, An electric telescopic rod (15) is horizontally arranged on one side of the liquid collection tank (14) along its extension direction. One end of the electric telescopic rod (15) is installed on the end of the liquid collection tank (14) near the liquid holding hopper (16), and the other end of the electric telescopic rod (15) is installed on the inner wall of the workbench (1) away from the liquid holding hopper (16).

9. A liquid metal valve pressure testing device according to claim 1, characterized in that, The temperature simulation chamber (2) is equipped with a heat source, a cold source, and a temperature sensor.

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