Valve sealing performance detection device

Abstract

The utility model discloses a valve sealing performance detection device, and belongs to the technical field of valve quality detection. Comprising a supporting table; a rotating block is rotationally arranged on the supporting table, a clamping plate is arranged above the rotating block in a sliding mode, and the clamping plate clamps the valve body; a groove is formed in the bottom of the supporting table, and a rotating assembly capable of controlling the rotating block to rotate is arranged in the groove. A first supporting plate and a second supporting plate are fixedly connected to the supporting table, a detection assembly is arranged on the first supporting plate, and an air inlet assembly corresponding to the other end of the valve body is arranged on the second supporting plate. A detection box is arranged on one side of the supporting table, water is arranged in the detection box, and the detection box communicates with the detection assembly through an air outlet pipe. The rotating assembly is arranged to drive the rotating block to rotate, the valve body can be rotated to exchange the inlet and the outlet of the valve without releasing fixation of the valve body, the positions of the detection assembly and the air inlet assembly do not need to be changed, and bidirectional sealing performance detection of the valve body is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model provides a valve sealing property detection device belongs to valve quality detection technical field. BACKGROUND

[0002] Valves are critical components in fluid control systems and are widely used in various fields such as petroleum, chemical industry, power supply, water supply, air conditioning, etc. The main function of valves is to control the flow of liquid or gas to achieve the purpose of opening and closing, regulating flow and pressure, etc. The sealing performance of valves is a key indicator to ensure their normal operation. Good sealing performance can prevent medium leakage and ensure the safe and stable operation of fluid control systems. On the contrary, if the sealing performance of the valve is poor, fluid can still pass through the valve when it is closed, increasing energy consumption and even threatening the safety of personnel and the environment. Therefore, valve sealing property detection is particularly important.

[0003] When detecting the sealing property of valves that transport gas medium, the valve is usually fixed first, and gas is introduced into the inlet end of the valve. In the case of valve closure, the outlet end of the valve is detected to see if the gas flows. If gas is detected, it means that the sealing property of the valve has a problem. Then, some valves need to consider the reverse flow condition in design, so it is necessary to detect the bidirectional sealing property of the valve, that is, not only to ensure the sealing property of the valve from the gas inlet end to the gas outlet end, but also to ensure that the gas at the gas outlet end cannot flow back to the gas inlet end when the valve is closed. The existing valve sealing property detection device often needs to move and replace the detection device after one-way detection to align the detection device with the other end of the valve, which is relatively troublesome to operate. In view of the above problems, a new type of valve sealing property detection device is needed, which can quickly and conveniently perform bidirectional detection. SUMMARY

[0004] The technical problem to be solved by the utility model is that the existing valve sealing property detection device is not convenient for quickly detecting the bidirectional sealing property of the valve.

[0005] The utility model discloses in order to solve above -mentioned problem, the technical scheme that proposes is: a valve sealing detection device, including support station, and the valve main part is placed on the support station, the rotatory block is rotationally arranged on the support station, and the clamping plate is slidably arranged on the rotatory block upper, and the clamping plate clamps the valve main part, rotatory block is opened in the slide groove, and the slide assembly that is fixedly connected with the clamping plate is slidably arranged in the slide groove, the recess is opened to the support station bottom, and the rotatory assembly that can control rotatory block rotation is arranged in the recess, the first support plate is fixedly connected on the support station, and the detection assembly that corresponds with one end of valve main part is arranged on the first support plate, the second support plate is fixedly connected on the support station, and the air inlet assembly that corresponds with the other end of valve main part is arranged on the second support plate, the detection box is arranged on the side of support station, and the water is arranged in the detection box, and the detection box is communicated with detection assembly through the air outlet pipe.

[0006] As an improvement, the slide assembly includes a sliding block, a connecting rod, the sliding block is slidably arranged in the slide groove, and the connecting rod is fixedly connected with the sliding block.

[0007] As an improvement, the slide groove is rotationally arranged with a bidirectional screw rod, the sliding block is provided with two, and the two sliding blocks are respectively threadedly connected to the corresponding positions on the bidirectional screw rod.

[0008] As an improvement, the rotatory assembly includes a rotatory motor and a rotating shaft, the rotatory motor is arranged in the recess, the rotating shaft is fixedly connected to the output shaft of the rotatory motor, and the rotating shaft is fixedly connected with the rotatory block.

[0009] As an improvement, the detection assembly includes a first electric telescopic rod and a first sealing cover, the first electric telescopic rod is arranged on the first support plate, the first sealing cover is fixedly connected to the working end of the first electric telescopic rod, and the first sealing cover is butt jointed with one end of the valve main part; the air inlet assembly includes a second electric telescopic rod and a second sealing cover, the second electric telescopic rod is arranged on the second support plate, the second sealing cover is fixedly connected to the working end of the second electric telescopic rod, and the second sealing cover is butt jointed with the other end of the valve main part.

[0010] As an improvement, the second sealing cover is connected with the air inlet pipe, the air outlet pipe is communicated with the first sealing cover, and the air outlet pipe is inserted below the liquid level in the detection tank.

[0011] As an improvement, the first sealing cover and the second sealing cover are provided with sealing pads at the positions butt jointed with the end portions of the valve main part.

[0012] The utility model discloses the beneficial effect:

[0013] The rotating block is rotatably arranged on the supporting table, and the clamping plate is slidably arranged above the rotating block and clamps the valve body; the clamping plate can quickly fix the valve body, and the clamping plate is arranged on the rotating block, so that the rotating block can be quickly rotated under the condition of keeping the valve body clamped and fixed, thereby adjusting the direction of the valve body, and the valve body can be bidirectionally sealed and detected without changing the positions of the detection assembly and the air inlet assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the valve sealing property detection device.

[0015] Figure 2 It is a bottom view of the valve sealing property detection device.

[0016] Figure 3 It is an exploded view of the valve sealing property detection device.

[0017] Figure 4 It is a sectional view of the rotating block of the valve sealing property detection device.

[0018] 1, supporting table; 2, first electric telescopic rod; 3, first supporting plate; 4, first sealing cover; 5, valve body; 6, air inlet pipe; 7, second sealing cover; 8, second supporting plate; 9, second electric telescopic rod; 10, clamping plate; 11, rotating block; 12, air outlet pipe; 13, detection box; 14, groove; 15, rotating motor; 16, guide groove; 17, connecting rod; 18, bidirectional screw rod; 19, sliding block; 20, sliding groove. DETAILED DESCRIPTION

[0019] The utility model is further described below in combination with the drawings.

[0020] According to Figures 1-4The utility model provides a valve sealing property detection device, which comprises a support table 1, and a valve body 5 is placed on the support table 1; a rotating block 11 is rotatably arranged on the support table 1, a clamping plate 10 is slidably arranged above the rotating block 11, and the clamping plate 10 clamps the valve body 5; a sliding groove 20 is formed in the rotating block 11, and a sliding assembly fixedly connected with the clamping plate 10 is slidably arranged in the sliding groove 20; a groove 14 is formed in the bottom of the support table 1, and a rotating assembly capable of controlling the rotation of the rotating block 11 is arranged in the groove 14; a first support plate 3 is fixedly connected to the support table 1, and a detection assembly corresponding to one end of the valve body 5 is arranged on the first support plate 3; a second support plate 8 is fixedly connected to the support table 1, and an air inlet assembly corresponding to the other end of the valve body 5 is arranged on the second support plate 8; a detection box 13 is arranged on one side of the support table 1, water is arranged in the detection box 13, and the detection box 13 is in communication with the detection assembly through an air outlet pipe 12.

[0021] The rotating assembly drives the rotating block 11 to rotate, so that the valve body 5 can be rotated without being removed from the fixed position, thereby changing the inlet and outlet of the valve, without the need to change the positions of the detection assembly and the air inlet assembly, and facilitating the bidirectional sealing property detection of the valve body 5.

[0022] As shown in Figure 4 , the sliding assembly comprises a sliding block 19 and a connecting rod 17, the sliding block 19 is slidably arranged in the sliding groove 20, and the connecting rod 17 is fixedly connected with the sliding block 19; a guide groove 16 in communication with the sliding groove 20 is formed in the rotating block 11, and the connecting rod 17 passes through the guide groove 16 and is fixedly connected with the clamping plate 10. A bidirectional screw rod 18 is rotatably arranged in the sliding groove 20, and two sliding blocks 19 are arranged, and the two sliding blocks 19 are threadedly connected to corresponding positions on the bidirectional screw rod 18. The guide groove 16 can limit the rotation of the sliding block 19, so as to convert the rotation of the bidirectional screw rod 18 into the movement of the sliding block 19, and drive the clamping plate 10 to move through the connecting rod 17.

[0023] As shown in Figure 2 , 4 , the rotating assembly comprises a rotating motor 15 and a rotating shaft, the rotating motor 15 is arranged in the groove 14, the rotating shaft is fixedly connected to the output shaft of the rotating motor 15, and the rotating shaft is fixedly connected with the rotating block 11. The rotating motor 15 and the rotating shaft are arranged to facilitate the rotation control of the rotating block 11.

[0024] As shown in Figure 1 , 3As shown, the detection assembly includes a first electric telescopic rod 2, a first sealing cover 4, the first electric telescopic rod 2 is arranged on the first supporting plate 3, the first sealing cover 4 is fixedly connected to the working end of the first electric telescopic rod 2, and the first sealing cover 4 is butted with one end of the valve body 5; the air inlet assembly includes a second electric telescopic rod 9, a second sealing cover 7, the second electric telescopic rod 9 is arranged on the second supporting plate 8, the second sealing cover 7 is fixedly connected to the working end of the second electric telescopic rod 9, and the second sealing cover 7 is butted with the other end of the valve body 5. The positions where the first sealing cover 4 and the second sealing cover 7 are butted with the end of the valve body 5 are provided with sealing pads, so that the sealing performance of the first sealing cover 4 and the second sealing cover 7 butted with the end of the valve body 5 can be improved. The second sealing cover 7 is connected with an air inlet pipe 6, an air outlet pipe 12 is communicated with the first sealing cover 4, and the air outlet pipe 12 is inserted below the liquid level in the detection box 13. When there is gas in the first sealing cover 4, the gas can enter the detection box 13 through the air outlet pipe 12, and bubbles can be formed below the liquid level in the detection box 13, so that the worker can observe conveniently.

[0025] Principle of the utility model

[0026] As shown in Figure 3 、 4 , the valve body 5 is placed between the two clamping plates 10, the inlet of the valve body 5 corresponds to the position of the second sealing cover 7, and the outlet of the valve body 5 corresponds to the position of the first sealing cover 4; the bidirectional screw rod 18 is screwed, and under the driving of the two sliding blocks 19, the two clamping plates 10 move towards each other until the clamping plate 10 clamps and fixes the valve body 5. The first electric telescopic rod 2 and the second electric telescopic rod 9 are started, so that the first sealing cover 4 and the second sealing cover 7 seal the two ends of the valve body 5 respectively. Under the condition that the valve body 5 is closed, the gas is introduced into the second sealing cover 7 through the air inlet pipe 6, if the sealing performance of the valve body 5 is good at this time, no gas will pass through the valve outlet and enter the first sealing cover 4; if the sealing performance of the valve body 5 has a problem at this time, the gas can pass through the valve outlet and enter the first sealing cover 4, and then enter below the liquid level in the detection box 13 through the air outlet pipe 12, so that the detection box 13 produces bubbles, and the worker can observe conveniently.

[0027] When the one-way sealing of the valve body 5 is detected, the first electric telescopic rod 2 and the second electric telescopic rod 9 are started to move the two sealing covers away from the valve body 5, without disassembling the valve body 5, the rotating motor 15 is directly started, under the driving of the rotating motor 15, the whole rotating block 11 rotates 180°, the inlet and outlet of the valve body 5 are switched, the outlet of the valve body 5 corresponds to the second sealing cover 7, and the inlet of the valve body 5 corresponds to the first sealing cover 4, the above sealing detection steps are repeated, the gas is introduced from the outlet of the valve body 5, and whether the gas escapes from the inlet of the valve body 5 is detected, so that the two-way sealing of the valve body 5 can be quickly detected, the position of the detection assembly and the gas inlet assembly does not need to be adjusted, and the detection efficiency is greatly improved.

[0028] The above describes the utility model and its implementation mode, and the description is not limited, and the drawings shown are only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A valve sealing detection device, comprising a support table (1) on which a valve body (5) is placed; characterized in that: a rotating block (11) is rotatably arranged on the support table (1), a clamping plate (10) is slidably arranged above the rotating block (11), and the clamping plate (10) clamps the valve body (5); a sliding groove (20) is formed in the rotating block (11), a sliding assembly fixedly connected with the clamping plate (10) is slidably arranged in the sliding groove (20); a recess (14) is formed in the bottom of the support table (1), a rotating assembly capable of controlling the rotation of the rotating block (11) is arranged in the recess (14); a first support plate (3) is fixedly connected to the support table (1), a detection assembly corresponding to one end of the valve body (5) is arranged on the first support plate (3); a second support plate (8) is fixedly connected to the support table (1), an air inlet assembly corresponding to the other end of the valve body (5) is arranged on the second support plate (8); a detection box (13) is arranged on one side of the support table (1), water is arranged in the detection box (13), and the detection box (13) is in communication with the detection assembly through an air outlet pipe (12). The sliding assembly comprises a sliding block (19) and a connecting rod (17), the sliding block (19) is slidably arranged in the sliding groove (20), and the connecting rod (17) is fixedly connected with the sliding block (19); a guide groove (16) in communication with the sliding groove (20) is formed in the rotating block (11), and the connecting rod (17) is fixedly connected with the clamping plate (10) through the guide groove (16).

2. The valve tightness detection device according to claim 1, characterized in that: The sliding groove (20) is rotatably arranged with a bidirectional screw rod (18), and the sliding block (19) is provided with two sliding blocks (19) which are threadedly connected to corresponding positions on the bidirectional screw rod (18).

3. The valve tightness detection device according to claim 2, characterized in that: The rotating assembly comprises a rotating motor (15) and a rotating shaft, the rotating motor (15) is arranged in the recess (14), the rotating shaft is fixedly connected to the output shaft of the rotating motor (15), and the rotating shaft is fixedly connected with the rotating block (11).

4. The valve tightness detection device according to claim 1, characterized in that: The detection assembly comprises a first electric telescopic rod (2) and a first sealing cover (4), the first electric telescopic rod (2) is arranged on the first support plate (3), the first sealing cover (4) is fixedly connected to the working end of the first electric telescopic rod (2), and the first sealing cover (4) is in butt joint with one end of the valve body (5); the air inlet assembly comprises a second electric telescopic rod (9) and a second sealing cover (7), the second electric telescopic rod (9) is arranged on the second support plate (8), the second sealing cover (7) is fixedly connected to the working end of the second electric telescopic rod (9), and the second sealing cover (7) is in butt joint with the other end of the valve body (5).

5. The valve tightness detection device according to claim 1, characterized in that: The second sealing cover (7) is connected with an air inlet pipe (6), the air outlet pipe (12) is in communication with the first sealing cover (4), and the air outlet pipe (12) is inserted below the liquid level in the detection box (13).

6. The valve tightness detection device according to claim 5, characterized in that: The first sealing cover (4) and the second sealing cover (7) are provided with sealing pads at positions in butt joint with the end portions of the valve body (5).

7. The valve tightness detection device according to claim 5, characterized in that: ​

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