Sealing performance detection device for petroleum valve

Abstract

The utility model relates to the technical field of detection devices and equipment, and discloses a petroleum valve sealing performance detection device which comprises a water tank, a machine tool, a push plate, a main air pipe, a first branch air pipe, a second branch air pipe, a tee joint and a valve, the outside of the water tank is fixedly connected with an air pressure box, and the inside of the air pressure box is fixedly connected with an air compressor. The outer portion of the water tank is fixedly connected with a vertical column, the upper surface of the vertical column is fixedly connected with a top disc, the bottom of the top disc is fixedly connected with a hydraulic machine, the outer portion of the machine tool is fixedly connected with a column rod, and the upper surface of the column rod is fixedly connected with a transverse plate. The utility model has the following advantages and effects: whether bubbles are generated on the upper surfaces of the two valves in water or not is observed, so that the work of detecting the sealing performance of the two valves is completed, the work of detecting the sealing performance of the two valves can be carried out through one-time operation, and the effect of detecting the sealing performance of the valves is good.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a sealing performance testing device for oil valves. Background Technology

[0002] Before connecting oil valves to oil pipelines, a sealing test must be performed on the oil valves to prevent oil from leaking out from the connection between the oil valves and the oil pipelines due to poor sealing.

[0003] In existing technologies, such as the valve sealing performance testing device disclosed in Chinese Patent Publication No. CN217111350U, which relates to the field of valve sealing performance testing technology, the present invention addresses the problem that most existing oil valve sealing performance testing relies on observation instruments, which are prone to damage and loss of accuracy after prolonged use. The device comprises a testing water tank at the upper end of a control base, containing clean water. A mounting bracket is located at the upper end of the testing water tank, and a cylinder mechanism is located at the upper end of the mounting bracket. An air blowing pipe is located on one side of the cylinder mechanism, and an air pump assembly is located on the other side. A connecting seat is located at the lower end of the cylinder mechanism, and a pressure seat is located at the lower end of the connecting seat. The connecting seat is welded to both the pressure seat and the cylinder mechanism. A lower base is located below the pressure seat, and electric push rod assemblies are located on both sides of the lower base.

[0004] In actual production and use, although this valve sealing performance testing device can perform sealing performance testing on valves, the lack of a double chuck device means that only one valve can be tested at a time, reducing the efficiency of valve sealing performance testing and resulting in poor performance of the device. Therefore, improvement is needed. Utility Model Content

[0005] The purpose of this invention is to provide a sealing performance testing device for oil valves, which has excellent effect on testing the sealing performance of valves.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sealing performance testing device for an oil valve, comprising a water tank, a machine tool, a push plate, a main air pipe, a first branch air pipe, a second branch air pipe, a tee, and a valve. An air compressor box is fixedly connected to the outside of the water tank, and an air compressor is fixedly connected inside the air compressor box. A vertical column is fixedly connected to the outside of the water tank, a top plate is fixedly connected to the upper surface of the vertical column, and a hydraulic press is fixedly connected to the bottom of the top plate. A column rod is fixedly connected to the outside of the machine tool, and a horizontal plate is fixedly connected to the upper surface of the column rod. The output end of the hydraulic press is fixedly connected to the horizontal plate. A square box is fixedly connected to the upper surface of the machine tool, and a cylinder is fixedly connected inside the square box. A circular hole is opened inside the square box. The machine tool has two placement slots inside. The output end of the cylinder passes through the inside of the circular hole and is fixedly connected to the push plate. A first clamping plate is fixedly connected to the outside of the push plate, and a second clamping plate is fixedly connected to the outside of the push plate. One end of the main air pipe passes through the inside of the air compressor box, and the other end of the main air pipe passes through the inside of the tee. One end of the first branch air pipe passes through the inside of the tee and the other end of the first branch air pipe passes through the inside of the first clamping plate. One end of the second branch air pipe passes through the inside of the tee and the other end of the second branch air pipe passes through the inside of the second clamping plate. A limit plate is fixedly connected to the outside of the machine tool, and a concave tube plate is fixedly connected to the outside of the limit plate. Air holes are opened inside the first and second clamping plates.

[0007] By adopting the above technical solution, the worker opens the two valves and places them in the two placement slots respectively, so that one end of the valve nozzles rubs against the inside of the first and second clamping plates. Then, the cylinder is activated, which drives the push plate to move, causing the first and second clamping plates to move the two valves to the right, so that the other ends of the two valves are inserted into the inside of the two concave tube plates. This closes and limits the two valves. Then, the air compressor uses air to flow through the main air pipe into the first and second branch air pipes, then into the first and second clamping plates, and finally out through the air holes to inflate the two closed valves. After the two valves are inflated, the hydraulic press lowers the machine tool, which then moves the inflated two valves into the water tank. By observing whether air bubbles are generated on the surface of the two valves in the water, the sealing performance of the two valves is tested. The above operation can perform the sealing test of two valves in one operation, achieving a good effect in testing the valve sealing performance.

[0008] A further feature of this invention is that the machine tool has internal perforations, and the spacing between each pair of perforations is equal.

[0009] By adopting the above technical solution, when the machine tool is subjected to force and enters the water, the water quickly submerges the machine tool through the leakage hole, preventing the water in the water tank from splashing when the machine tool is subjected to force and enters the water.

[0010] A further feature of this invention is that: an insertion hole is provided inside the main air pipe, and a pressure gauge is provided outside the air compressor box, with the bottom end of the pressure gauge penetrating into the insertion hole.

[0011] By adopting the above technical solution, the barometer provides a reference for the pressure of the air flowing through the main air tube.

[0012] A further feature of this invention is that: both the first bronchus and the second bronchus are equipped with one-way air valves, and the number of one-way air valves is two.

[0013] By adopting the above technical solution, the air flowing through the main air tube can only flow in one direction to the inside of the first and second bronchus through the action of the one-way air valve, thus preventing the gas inside the first and second bronchus from flowing back into the main air tube.

[0014] A further feature of this invention is that a filter screen is fixedly connected to the outside of the air hole, and the filter screen consists of two layers.

[0015] By adopting the above technical solution, two layers of filters remove impurities and dust from the air, preventing impurities and dust from adhering to the upper surface of the valve with the airflow.

[0016] A further feature of this invention is that two sealing rings are fixedly connected inside both the first and second clamping plates.

[0017] By adopting the above technical solution, two sealing rings prevent air leakage from one end of the valve after inflation.

[0018] A further feature of this invention is that the number of the concave tube discs is two, and a round rubber pad is fixedly connected inside each of the two concave tube discs.

[0019] By adopting the above technical solution, the round rubber pad prevents air leakage from the other end of the valve after inflation.

[0020] A further feature of this invention is that a waterproof layer is fixedly connected inside the square box, and the waterproof layer is made of a polymer material.

[0021] By adopting the above technical solution, when the machine tool is subjected to force and enters the water, the square box will also be driven into the water, and the waterproof layer will protect the cylinder.

[0022] A further feature of this invention is that a sliding groove is provided inside the vertical column, and a pulley is provided outside the machine tool, with the pulley slidably connected to the sliding groove.

[0023] By adopting the above technical solution, the sliding connection between the pulley and the slide groove facilitates the smooth movement of the machine tool after being subjected to force.

[0024] A further feature of this invention is that a fan is fixedly connected to the bottom of the horizontal plate, and the number of fans is two.

[0025] By adopting the above technical solution, after the valve sealing test is performed, the machine tool drives the valve to rise from the water, and the worker starts the fan to blow air on it to accelerate the drying of the valve surface.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of a water tank, machine tool, push plate, main air pipe, first branch air pipe, second branch air pipe, tee head, valve, air compressor box, air compressor, vertical column, top plate, hydraulic press, column rod, horizontal plate, square box, cylinder, round hole, placement groove, first clamping plate, second clamping plate, main air pipe, limiting plate, and concave tube plate, allows workers to close and limit two valves through the action of the first clamping plate, second clamping plate, two concave tube plates, and cylinder. Then, the air compressor, main air pipe, first branch air pipe, second branch air pipe, first clamping plate, second clamping plate, and air hole are used to inflate the two valves. The machine tool then drives the inflated two valves into the water tank, thereby completing the sealing test of the two valves and achieving excellent results in testing the valve sealing performance.

[0028] 2. This utility model, through the arrangement of a leak hole, insertion hole, pressure gauge, one-way valve, filter screen, sealing ring, round rubber gasket, waterproof layer, slide groove, pulley, and fan, prevents water from splashing when the machine tool is subjected to force and water enters. The pressure gauge provides a reference for the pressure of the air flowing in the main air pipe. The one-way valve prevents gas backflow. Two layers of filter screen filter impurities and dust in the air. The sealing ring and round rubber gasket prevent leakage of internal gas in the valve after inflation. The waterproof layer prevents water from entering the cylinder. The pulley and slide groove enable the machine tool to move up and down smoothly after being subjected to force. The fan blows air onto the valve to dry the water remaining on the valve surface. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the cylinder and push plate structure of this utility model;

[0032] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0033] Figure 4 This utility model Figure 1 A magnified structural diagram at point B in the middle.

[0034] In the diagram: 1. Water tank; 2. Machine tool; 3. Air compressor box; 4. Air compressor; 5. Vertical column; 6. Top plate; 7. Hydraulic press; 8. Column rod; 9. Horizontal plate; 10. Square box; 11. Cylinder; 12. Push plate; 13. Round hole; 14. Placement slot; 15. First clamping plate; 16. Second clamping plate; 17. Main air pipe; 18. First branch air pipe; 19. Second branch air pipe; 20. T-joint; 21. Valve; 22. Limiting plate; 23. Concave tube plate; 24. Leakage hole; 25. Insertion hole; 26. Pressure gauge; 27. One-way valve; 28. Filter screen; 29. ​​Sealing ring; 30. Round rubber gasket; 31. Waterproof layer; 32. Slide groove; 33. Pulley; 34. Fan; 35. Air hole. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4 A sealing performance testing device for oil valves includes the following specific embodiments:

[0037] Example 1: A sealing performance testing device for an oil valve, comprising a water tank 1, a machine tool 2, a push plate 12, a main air pipe 17, a first branch air pipe 18, a second branch air pipe 19, a tee head 20, and a valve 21, characterized in that: an air compressor box 3 is fixedly connected to the outside of the water tank 1, an air compressor 4 is fixedly connected to the inside of the air compressor box 3, a vertical column 5 is fixedly connected to the outside of the water tank 1, a top plate 6 is fixedly connected to the upper surface of the vertical column 5, a hydraulic press 7 is fixedly connected to the bottom of the top plate 6, a column rod 8 is fixedly connected to the outside of the machine tool 2, a horizontal plate 9 is fixedly connected to the upper surface of the column rod 8, the output end of the hydraulic press 7 is fixedly connected to the horizontal plate 9, and a square box 10 is fixedly connected to the upper surface of the machine tool 2, with the square box 10 internally fixedly connected to... The machine tool 2 has two placement slots 14, one of which is a cylinder 11. The output end of the cylinder 11 passes through the round hole 13 and is fixedly connected to the push plate 12. A first clamping plate 15 and a second clamping plate 16 are fixedly connected to the outside of the push plate 12. One end of the main air pipe 17 passes through the air compressor box 3, and the other end passes through the tee joint 20. One end of the first branch air pipe 18 passes through the tee joint 20, and the other end passes through the first clamping plate 15. One end of the second branch air pipe 19 passes through the tee joint 20, and the other end passes through the first clamping plate 15. The machine tool 2 is externally fixedly connected to a limiting plate 22, which is then externally fixedly connected to a concave tube plate 23. Both the first and second clamping plates 15 and 16 have air holes 35 inside. After opening the two valves 21, the worker places them in the two placement slots 14, so that one end of the valve 21 rubs against the inside of the first and second clamping plates 15 and 16 respectively. Then, the cylinder 11 is activated, which drives the push plate 12 to move, causing the first and second clamping plates 15 and 16 to move the two valves 21 to the right, so that the other ends of the two valves 21 are inserted into the inside of the two concave tube plates 23. This closes and limits the movement of the two valves 21. Next, the air compressor 4 causes air to flow through the main air pipe 17 into the first branch pipe 18 and the second branch pipe 19, then into the first clamping plate 15 and the second clamping plate 16, and finally out through the air hole 35 to fill the two closed valves 21. After the two valves 21 are filled with air, the hydraulic press 7 causes the machine tool 2 to descend, thereby causing the machine tool 2 to drive the two filled valves 21 into the water tank 1. By observing whether air bubbles are generated on the surface of the two valves 21 in the water, the sealing performance of the two valves 21 is tested. The above operation can be performed to test the sealing performance of the two valves 21 in one operation, achieving a good effect in testing the valve sealing performance.

[0038] Example 2: The machine tool 2 has a drainage hole 24 inside, and the spacing between each pair of drainage holes 24 is equal. When the machine tool 2 is subjected to force and enters the water, the water quickly submerges the machine tool 2 through the drainage hole 24, preventing the water in the water tank 1 from splashing when the machine tool 2 is subjected to force and enters the water. The main air pipe 17 has an insertion hole 25 inside, and a pressure gauge 26 is installed on the outside of the air compressor box 3. The bottom end of the pressure gauge 26 extends into the insertion hole 25. The pressure gauge 26 provides a reference for the pressure of the air flowing in the main air pipe 17. The first branch pipe 18 and the second branch pipe 19 are each equipped with a one-way valve 27. There are two one-way valves 27. Through the action of the one-way valves 27, the air flowing in the main air pipe 17 can only flow in one direction into the first branch pipe 18 and the second branch pipe 19, preventing the gas inside the first branch pipe 18 and the second branch pipe 19 from flowing back into the main air pipe 17.

[0039] Example 3: A filter screen 28 is fixedly connected to the outside of the air hole 35. There are two layers of filter screen 28. The two layers of filter screen 28 filter impurities and dust in the air and prevent impurities and dust from adhering to the upper surface of the valve 21 with the airflow. A sealing ring 29 is fixedly connected inside the first clamping plate 15 and the second clamping plate 16. There are two sealing rings 29. The two sealing rings 29 prevent one end of the valve 21 from leaking air after inflation. There are two concave tube plates 23. A round rubber gasket 30 is fixedly connected inside the two concave tube plates 23. The round rubber gasket 30 prevents the other end of the valve 21 from leaking air after inflation.

[0040] Example 4: The inside of the square box 10 is fixedly connected with a waterproof layer 31. The waterproof layer 31 is made of polymer material. When the machine tool 2 is subjected to force and enters the water, it will also drive the square box 10 into the water. The waterproof layer 31 plays a protective role for the cylinder 11.

[0041] Example 5: A groove 32 is provided inside the vertical column 5, and a pulley 33 is provided on the outside of the machine tool 2. The pulley 33 is slidably connected to the groove 32. The slidable connection between the pulley 33 and the groove 32 facilitates the smooth movement of the machine tool 2 after being subjected to force. Two fans 34 are fixedly connected to the bottom of the horizontal plate 9. After the sealing of the valve 21 is tested, the machine tool 2 drives the valve 21 to rise from the water, and the worker starts the fans 34 to blow air on it to accelerate the drying of the surface of the valve 21.

[0042] In this invention, after the worker opens the two valves 21, they are placed inside the two placement slots 14 respectively, so that one end of the valve 21 rubs against the inside of the first clamping plate 15 and the second clamping plate 16 respectively. Then, the cylinder 11 is activated, which drives the push plate 12 to move, causing the first clamping plate 15 and the second clamping plate 16 to move the two valves 21 to the right, so that the other end of the two valves 21 is inserted into the inside of the two concave tube plates 23 respectively. In this way, the two valves 21 are closed and limited. Then, the air compressor 4 causes air to flow through the main air pipe 17 to the first branch. After flowing into the air pipe 18 and the second branch pipe 19, the air flows into the first clamping plate 15 and the second clamping plate 16, and then exits through the air hole 35 to inflate the two closed valves 21. After the two valves 21 are inflated, the machine tool 2 is lowered by the action of the hydraulic press 7, which in turn drives the inflated two valves 21 into the water tank 1. By observing whether air bubbles are generated on the surface of the two valves 21 in the water, the sealing test of the two valves 21 is completed. The sealing test of the two valves 21 can be performed in one operation, realizing the valve sealing test. The sealing performance test shows excellent results. When machine tool 2 is submerged in water, water quickly floods it through the leak hole 24, preventing splashing of water in the water tank 1 after the machine tool 2 is submerged. The pressure gauge 26 provides a reference for the air pressure flowing through the main air pipe 17. The one-way valve 27 ensures that the air flowing through the main air pipe 17 can only flow in one direction into the first branch pipe 18 and the second branch pipe 19, preventing the gas inside the first branch pipe 18 and the second branch pipe 19 from flowing back into the main air pipe 17. The two-layer filter screen 28 filters the air... Impurities and dust are removed to prevent them from adhering to the upper surface of valve 21 with the airflow. Two sealing rings 29 prevent air leakage from one end of valve 21 after inflation, and a round rubber pad 30 prevents air leakage from the other end of valve 21 after inflation. When machine tool 2 is subjected to force and enters the water, it will also drive square box 10 into the water. Waterproof layer 31 protects cylinder 11. The sliding connection between pulley 33 and slide groove 32 facilitates the smooth movement of machine tool 2 after being subjected to force. After the sealing of valve 21 is tested, machine tool 2 drives valve 21 to rise from the water, and the worker starts fan 34 to blow air on it to accelerate the drying of the surface of valve 21.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing performance testing device for an oil valve, comprising a water tank (1), a machine tool (2), a push plate (12), a main air pipe (17), a first branch air pipe (18), a second branch air pipe (19), a tee (20), and a valve (21), characterized in that: An air compressor box (3) is fixedly connected to the outside of the water tank (1). An air compressor (4) is fixedly connected inside the air compressor box (3). A vertical column (5) is fixedly connected to the outside of the water tank (1). A top plate (6) is fixedly connected to the upper surface of the vertical column (5). A hydraulic press (7) is fixedly connected to the bottom of the top plate (6). A column rod (8) is fixedly connected to the outside of the machine tool (2). A horizontal plate (9) is fixedly connected to the upper surface of the column rod (8). The output end of the hydraulic press (7) is fixedly connected to the horizontal plate (9). A square box (10) is fixedly connected to the upper surface of the machine tool (2). A cylinder (11) is fixedly connected inside the square box (10). A round hole (13) is opened inside the square box (10). A placement slot (14) is opened inside the machine tool (2). There are two placement slots (14). The output end of the cylinder (11) passes through the round hole (13) and is connected to the cylinder (11). A push plate (12) is fixedly connected, and a first clamping plate (15) is fixedly connected to the outside of the push plate (12). A second clamping plate (16) is fixedly connected to the outside of the push plate (12). One end of the main air pipe (17) passes through the inside of the air compressor box (3), and the other end of the main air pipe (17) passes through the inside of the three-way connector (20). One end of the first branch air pipe (18) passes through the inside of the three-way connector (20), and the other end of the first branch air pipe (18) passes through the inside of the first clamping plate (15). One end of the second branch air pipe (19) passes through the inside of the three-way connector (20), and the other end of the second branch air pipe (19) passes through the inside of the second clamping plate (16). A limiting plate (22) is fixedly connected to the outside of the machine tool (2), and a concave tube plate (23) is fixedly connected to the outside of the limiting plate (22). Air holes (35) are opened inside the first clamping plate (15) and the second clamping plate (16).

2. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The machine tool (2) has a hole (24) inside, and the distance between each hole (24) is equal.

3. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The main air pipe (17) has an insertion hole (25) inside, and the air pressure box (3) is equipped with a pressure gauge (26) on the outside, with the bottom end of the pressure gauge (26) penetrating into the insertion hole (25).

4. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The first bronchus (18) and the second bronchus (19) are each equipped with a one-way valve (27), and there are two one-way valves (27).

5. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The air pore (35) is fixedly connected to a filter screen (28), and the filter screen (28) consists of two layers.

6. The sealing performance testing device for an oil valve according to claim 1, characterized in that: Both the first clamping plate (15) and the second clamping plate (16) are fixedly connected with sealing rings (29), and there are two sealing rings (29).

7. The sealing performance testing device for an oil valve according to claim 1, characterized in that: There are two concave tube discs (23), and a round rubber pad (30) is fixedly connected inside each of the two concave tube discs (23).

8. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The inside of the box (10) is fixedly connected to a waterproof layer (31), which is made of polymer material.

9. The sealing performance testing device for an oil valve according to claim 1, characterized in that: The vertical column (5) has a sliding groove (32) inside, and the machine tool (2) has a pulley (33) on the outside, and the pulley (33) is slidably connected to the sliding groove (32).

10. The sealing performance testing device for an oil valve according to claim 1, characterized in that: A fan (34) is fixedly connected to the bottom of the horizontal plate (9), and there are two fans (34).

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