Sealing performance testing device for all-welded ball valve

Abstract

The utility model relates to the technical field of testing devices, in particular to a sealing performance testing device for an all-welded ball valve. According to the technical scheme, the device comprises a bottom plate and a ball valve, a valve rod is arranged at the top of the ball valve, the device further comprises a fixed plate and a movable plate, the movable plate is installed at the top of the bottom plate in a sliding mode, testing devices are arranged in the fixed plate and the movable plate, a sliding plate is installed on the bottom plate in a sliding mode, and a heating box is arranged above the sliding plate. And the ball valve is positioned in the heating box. According to the utility model, the ball valve is heated, so that the sealing performance of the ball valve can be tested under a high-temperature condition, and the simulation of a high-temperature environment in an actual working condition is realized, thereby improving the accuracy of the sealing performance test of the ball valve; in addition, the two ends of the ball valve and the sleeve are tightly connected in a sleeved mode to form a closed space when the sealing performance is tested, and therefore the accuracy of the sealing performance testing result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a sealing performance testing device for a fully welded ball valve. Background Art

[0002] The ball valve is a control valve widely used in pipeline systems, and its sealing performance directly affects the safety and stability of the pipeline system. By testing the sealing performance of the ball valve, the sealing problems of the ball valve can be discovered in time, and corresponding measures can be taken to repair or replace it, so as to ensure the normal operation of the ball valve and the safety and stability of the pipeline system. The sealing performance test device of the ball valve is a device used to detect the sealing performance of the ball valve. The basic principle of the ball valve sealing performance test is to inflate or fill the ball valve with liquid under a certain pressure, and observe whether the ball valve leaks. The leakage detection system usually uses methods such as acoustic wave detection or pressure sensor detection to monitor the leakage of the ball valve in real time. The ball valve sealing performance test device in the prior art can only test the ball valve at room temperature, and cannot fully simulate the temperature conditions in actual working conditions. Therefore, we propose a sealing performance test device for a fully welded ball valve. Summary of the invention

[0003] The utility model aims to propose a sealing performance testing device for a fully welded ball valve in view of the problem that the ball valve sealing performance testing device in the background technology can only test the ball valve at room temperature and cannot fully simulate the temperature conditions in actual working conditions.

[0004] The technical solution of the utility model is: a sealing performance test device for a fully welded ball valve, comprising a bottom plate and a ball valve, wherein a valve stem is provided on the top of the ball valve, and further comprising:

[0005] A fixed plate and a movable plate, wherein the movable plate is slidably mounted on the top of the bottom plate, and a testing device is arranged inside the fixed plate and the movable plate;

[0006] A sliding plate is slidably mounted on the bottom plate, a heating box is arranged above the sliding plate, and the ball valve is located in the heating box.

[0007] Optionally, the fixed plate is fixedly installed on one side of the base plate, a rectangular plate is fixedly installed on a side of the base plate away from the fixed plate, and two groups of sliding plates are provided, and the sliding plates are slidably installed between the fixed plate and the movable plate.

[0008] Optionally, multiple groups of guide rods are fixedly installed between the fixed plate and the rectangular plate, the movable plate and the sliding plate are both slidably mounted on the guide rods, an electric push rod is fixedly installed on one side of the rectangular plate close to the movable plate, and the telescopic end of the electric push rod is fixedly connected to the movable plate.

[0009] Optionally, the testing device includes a sleeve, the sleeve includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are respectively fixedly installed on the side of the fixed plate and the movable plate close to the ball valve, the fixed plate and the movable plate are both provided with ventilation pipes, the ventilation pipes are respectively connected with the sleeves, and a pressure sensor is fixedly installed in the ventilation pipe.

[0010] Optionally, a circular tube connected to the ventilation pipe is fixedly installed on the top of the fixed plate and the movable plate, and a valve is provided on the circular tube. A gas delivery part is fixedly installed on the rectangular plate, one side of the gas delivery part is connected to a telescopic tube, and one end of the telescopic tube is connected to the circular tube located on the movable plate.

[0011] Optionally, a placement seat is fixedly installed between the tops of the two groups of sliding plates, the ball valve is located in the placement seat, and the heating box includes a first box body and a second box body, and electric heating wires are provided in the first box body and the second box body.

[0012] Optionally, the first box is fixedly mounted on one side of the placement seat, a rotating seat is fixedly mounted on a side of the placement seat away from the first box, and the second box is hinged to the top of the rotating seat.

[0013] Optionally, a mounting plate is fixedly installed on the top of the first box body and the second box body, and mounting bolts are provided on the mounting plate. Through holes for the ventilation pipe to pass through are opened on both sides of the first box body and the second box body, and through holes for the valve stem to pass through are opened on the top of the first box body and the second box body.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] 1. The utility model realizes heating of the ball valve through the heating box, so that the sealing performance test of the ball valve can be carried out under high temperature conditions, and the simulation of the high temperature environment in the actual working conditions is realized, thereby improving the accuracy of the sealing performance test of the ball valve;

[0016] 2. The utility model realizes that the two ends of the ball valve and the vent pipe are tightly connected to form a closed space when performing a sealing performance test through an electric push rod, a movable plate, a fixed plate, a vent pipe, a pressure sensor, a valve pipe, a sliding plate, and a guide rod, thereby improving the accuracy of the sealing performance test results.

[0017] The utility model realizes heating of the ball valve, so that the sealing performance test of the ball valve can be carried out under high temperature conditions, and the high temperature environment in actual working conditions is simulated, thereby improving the accuracy of the sealing performance test of the ball valve; in addition, when carrying out the sealing performance test, the two ends of the ball valve are tightly sleeved with the sleeve to form a closed space, thereby improving the accuracy of the sealing performance test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of the ball valve in the utility model is given;

[0019] Figure 2 Provide the overall structural diagram of the utility model;

[0020] Figure 3 A schematic diagram of the front cross-sectional structure of the utility model is given.

[0021] Figure numerals: 1. bottom plate; 2. rectangular plate; 3. fixed plate; 4. movable plate; 5. sliding plate; 6. guide rod; 7. placement seat; 8. ball valve; 9. heating box; 91. first box body; 92. second box body; 93. mounting plate; 94. mounting bolts; 10. valve stem; 11. gas transmission part; 12. electric push rod; 13. round tube; 14. valve; 15. telescopic tube; 16. sleeve; 161. first sleeve; 162. second sleeve; 17. ventilation pipe; 18. pressure sensor. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example

[0029] like Figure 1-3 As shown, the utility model proposes a sealing performance testing device for a fully welded ball valve, comprising a base plate 1 and a ball valve 8, wherein a valve stem 10 is provided on the top of the ball valve 8, and further comprising a fixed plate 3 and a movable plate 4, wherein the movable plate 4 is slidably mounted on the top of the base plate 1, and testing devices are provided inside the fixed plate 3 and the movable plate 4.

[0030] Among them, the fixed plate 3 is fixedly installed on one side of the base plate 1, and a rectangular plate 2 is fixedly installed on the side of the base plate 1 away from the fixed plate 3. Two groups of sliding plates 5 are provided, and the sliding plates 5 are slidably installed between the fixed plate 3 and the movable plate 4. The movement of the sliding plate 5 and the movable plate 4 forms a sealing state between the two sides of the ball valve 8 and the sleeve 16.

[0031] In addition, multiple groups of guide rods 6 are fixedly installed between the fixed plate 3 and the rectangular plate 2, and the movable plate 4 and the sliding plate 5 are both slidably sleeved on the guide rods 6. An electric push rod 12 is fixedly installed on the side of the rectangular plate 2 close to the movable plate 4, and the telescopic end of the electric push rod 12 is fixedly connected to the movable plate 4. The electric push rod 12 is started to move the movable plate 4, so that the second sleeve 162 enters the opening on one side of the ball valve 8, and then continues to push the sliding plate 5 to slide until the first sleeve 161 enters the opening on the other side of the ball valve 8, thereby achieving a closed state between the sleeve 16 and the ball valve 8, and achieving a closed space by tightly sleeved the two ends of the ball valve 8 and the sleeve when performing a sealing performance test, thereby improving the accuracy of the sealing performance test results.

[0032] In this embodiment, the testing device includes a sleeve 16, and the sleeve 16 includes a first sleeve 161 and a second sleeve 162. The first sleeve 161 and the second sleeve 162 are respectively fixedly installed on one side of the fixed plate 3 and the movable plate 4 close to the ball valve 8. A ventilation pipe 17 is provided in the fixed plate 3 and the movable plate 4, respectively. The ventilation pipe 17 is connected to the sleeve 16, and a pressure sensor 18 is fixedly installed in the ventilation pipe 17. The pressure sensor 18 is connected to an external controller and a display screen through a wire. The valve stem 10 on the ball valve 8 is opened to put the ball valve 8 in a conducting state, the valve 14 located above the fixed plate 3 is closed, the valve 14 located above the movable plate 4 is opened, the gas transmission part 11 is started, and gas is input into the ball valve through the telescopic tube 15. After a period of time, the valve 14 and the gas transmission part 11 are closed, and the pressure change detected by the pressure sensor 18 is observed, thereby realizing the testing of the sealing performance of the ball valve 8.

[0033] In this embodiment, a round tube 13 connected to the ventilation pipe 17 is fixedly installed on the top of the fixed plate 3 and the movable plate 4, and a valve 14 is provided on the round tube 13. A gas delivery part 11 is fixedly installed on the rectangular plate 2, and one side of the gas delivery part 11 is connected to the telescopic tube 15, and one end of the telescopic tube 15 is connected to the round tube 13 located on the movable plate 4. The gas delivery part 11 is started, so that the gas enters the round tube 13 through the telescopic tube 15, and then enters the ball valve 8 through the ventilation pipe 17 located in the movable plate 4. The gas in and out of the ball valve 8 is controlled by opening and closing the valve 14.

[0034] Among them, a sliding plate 5 is slidably mounted on the bottom plate 1, a heating box 9 is arranged above the sliding plate 5, and a ball valve 8 is located in the heating box 9. A placement seat 7 is fixedly mounted between the tops of the two sets of sliding plates 5, and the ball valve 8 is located in the placement seat 7. The heating box 9 includes a first box body 91 and a second box body 92, and electric heating wires are arranged in the first box body 91 and the second box body 92. The electric heating wires are connected to an external power supply, and the electric heating wires in the heating box 9 are started to heat the ball valve 8 in the heating box 9. The first box body 91 and the second box body 92 are in a closed state, thereby improving the heating efficiency of the ball valve 8.

[0035] In addition, the first box body 91 is fixedly installed on one side of the placement seat 7, and a rotating seat is fixedly installed on the side of the placement seat 7 away from the first box body 91, and the second box body 92 is hinged to the top of the rotating seat. Mounting plates 93 are fixedly installed on the tops of the first box body 91 and the second box body 92, and mounting bolts 94 are provided on the mounting plates 93. Through holes for the sleeve 16 to pass through are opened on both sides of the first box body 91 and the second box body 92, and through holes for the valve stem 10 to pass through are opened on the tops of the first box body 91 and the second box body 92. The ball valve 8 is placed on the placement seat 7, and the second box body 92 is rotated so that one side of the second box body 92 is fitted with the first box body 91, and the second box body 92 and the first box body 91 are fixed to each other by the mounting bolts 94 and the mounting plate 93.

[0036] Working principle: During the working process of the utility model, the ball valve 8 is placed on the placement seat 7, the second box body 92 is rotated so that one side of the second box body 92 is fitted with the first box body 91, and the second box body 92 and the first box body 91 are fixed to each other by installing bolts 94 and installing plates 93, and the electric heating wire in the heating box 9 is started to heat the ball valve 8 in the heating box 9, and the first box body 91 and the second box body 92 are in a closed state, which improves the heating efficiency of the ball valve 8, and the electric push rod 12 is started to move the moving plate 4, so that the second sleeve 162 enters the opening on one side of the ball valve 8, and then the sliding plate 5 is pushed to slide until the first sleeve 161 enters At the opening on the other side of the ball valve 8, a closed state is achieved between the sleeve 16 and the ball valve 8, and when the sealing performance test is performed, the two ends of the ball valve 8 are tightly sleeved with the sleeve to form a closed space, thereby improving the accuracy of the sealing performance test result. The valve stem 10 on the ball valve 8 is opened to put the ball valve 8 in a conducting state, the valve 14 located above the fixed plate 3 is closed, the valve 14 located above the movable plate 4 is opened, the gas supply part 11 is started, and gas is input into the ball valve through the telescopic tube 15. After a period of time, the valve 14 and the gas supply part 11 are closed, and the pressure change detected by the pressure sensor 18 is observed, thereby realizing the test of the sealing performance of the ball valve 8.

[0037] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A sealing performance testing device for a fully welded ball valve, comprising a base plate (1) and a ball valve (8), wherein a valve stem (10) is provided on the top of the ball valve (8), and characterized in that: Also includes: A fixed plate (3) and a movable plate (4), wherein the movable plate (4) is slidably mounted on the top of the base plate (1), and a testing device is provided inside the fixed plate (3) and the movable plate (4); A sliding plate (5) is slidably mounted on the bottom plate (1), a heating box (9) is provided above the sliding plate (5), and the ball valve (8) is located in the heating box (9).

2. A sealing performance testing device for a fully welded ball valve according to claim 1, characterized in that: The fixed plate (3) is fixedly mounted on one side of the base plate (1); a rectangular plate (2) is fixedly mounted on the side of the base plate (1) away from the fixed plate (3); two groups of sliding plates (5) are provided; the sliding plates (5) are slidably mounted between the fixed plate (3) and the movable plate (4).

3. The sealing performance testing device of a fully welded ball valve according to claim 1, characterized in that: A plurality of guide rods (6) are fixedly installed between the fixed plate (3) and the rectangular plate (2); the movable plate (4) and the sliding plate (5) are both slidably sleeved on the guide rods (6); an electric push rod (12) is fixedly installed on one side of the rectangular plate (2) close to the movable plate (4); and the telescopic end of the electric push rod (12) is fixedly connected to the movable plate (4).

4. A sealing performance testing device for a fully welded ball valve according to claim 3, characterized in that: The testing device comprises a sleeve (16), wherein the sleeve (16) comprises a first sleeve (161) and a second sleeve (162), wherein the first sleeve (161) and the second sleeve (162) are respectively fixedly mounted on one side of the fixed plate (3) and the movable plate (4) close to the ball valve (8), wherein a ventilation pipe (17) is provided in each of the fixed plate (3) and the movable plate (4), wherein the ventilation pipe (17) is respectively connected to the sleeve (16), and a pressure sensor (18) is fixedly mounted in the ventilation pipe (17).

5. A sealing performance testing device for a fully welded ball valve according to claim 4, characterized in that: A circular tube (13) connected to the ventilation pipe (17) is fixedly mounted on the top of the fixed plate (3) and the movable plate (4), and a valve (14) is provided on the circular tube (13). A gas delivery portion (11) is fixedly mounted on the rectangular plate (2), and one side of the gas delivery portion (11) is connected to a telescopic tube (15), and one end of the telescopic tube (15) is connected to the circular tube (13) located on the movable plate (4).

6. A sealing performance testing device for a fully welded ball valve according to claim 5, characterized in that: A placement seat (7) is fixedly installed between the tops of the two groups of sliding plates (5), and the ball valve (8) is located in the placement seat (7). The heating box (9) includes a first box body (91) and a second box body (92), and electric heating wires are provided in the first box body (91) and the second box body (92).

7. A sealing performance testing device for a fully welded ball valve according to claim 6, characterized in that: The first box body (91) is fixedly mounted on one side of the placement seat (7), a rotating seat is fixedly mounted on the side of the placement seat (7) away from the first box body (91), and the second box body (92) is hinged to the top of the rotating seat.

8. The sealing performance testing device of a fully welded ball valve according to claim 7, characterized in that: A mounting plate (93) is fixedly mounted on the top of the first box body (91) and the second box body (92), and mounting bolts (94) are provided on the mounting plate (93). Through holes for the sleeve (16) to pass through are provided on both sides of the first box body (91) and the second box body (92), and through holes for the valve stem (10) to pass through are provided on the top of the first box body (91) and the second box body (92).

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