A valve seat high-temperature high-pressure durability test device

Abstract

The utility model discloses a valve seat high temperature high pressure durability testing arrangement, it includes hot pressure cavity, temperature control box, adjusting screw rod, transmission sliding block, transmission arm and temperature control board body etc. Through the rotation adjusting screw rod drive transmission sliding block removes, changes hot pressure cavity volume to adjust pressure to the synchronous drive temperature control board body sliding adjustment heating element and cavity distance, realizes temperature dynamic control. The device combines pressure and temperature adjustment, simplifies operation process, improves test efficiency, and simultaneously realizes the quick clamping and releasing of the test valve seat through the elastic member design, enhances stability. The application can effectively simulate extreme working conditions, ensure the accuracy of test results, and is suitable for industrial valve reliability detection.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, and in particular to a valve seat high temperature and high pressure durability testing device. Background Technology

[0002] Because valves in industrial equipment operate under high temperature and high pressure environments for extended periods, they are prone to failure due to material degradation or seal failure. To ensure the reliability and safety of valves, high temperature and high pressure durability testing of valve seats is necessary. However, existing testing devices often need to simulate extreme operating conditions in actual use. Therefore, to ensure the accuracy of test results, the testing device must have stable temperature and pressure control capabilities. Currently available valve seat testing devices typically require complex operating procedures to adjust test parameters and maintain environmental stability during high temperature and high pressure testing, and the collection and recording of test data are also cumbersome. Therefore, this invention provides an improved valve seat high temperature and high pressure durability testing device that simplifies operation and improves testing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a valve seat high temperature and high pressure durability testing device, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a valve seat high-temperature and high-pressure durability testing device, specifically comprising: a hot-pressing chamber, the hot-pressing chamber having a cylindrical structure and a sliding piston plate inside; an air inlet at the top and an exhaust outlet at the bottom of the hot-pressing chamber; a pressure sensor fixedly installed on the outer wall of the hot-pressing chamber; a temperature control box fixedly installed on one side of the hot-pressing chamber; an arc-shaped temperature control plate inside the temperature control box; multiple heating elements embedded in the inner wall of the temperature control plate; a spiral groove on the outer wall of the temperature control plate; an adjusting screw rotatably installed at the rear bottom end of the hot-pressing chamber; a support frame fixedly installed on the top of the hot-pressing chamber; a circular through hole at the center of the support frame; a test valve seat inserted into the circular through hole on the support frame; and rectangular guide rails fixedly installed on the left and right sides of the top of the support frame; the guide rails... A square-structured transmission slider is slidably mounted on the track; the transmission slider is also connected to an adjusting screw via threads; an operating handwheel is fixedly mounted on the top of the adjusting screw; a transmission arm is fixedly mounted on the rear bottom of the transmission slider; a transmission pin A is fixedly mounted on the bottom front side of the transmission arm; the front end of the transmission pin A has a spherical structure; the spherical structure of the transmission pin A is also slidably mounted inside a spiral groove; a transmission pin B is fixedly mounted on the top front side of the transmission arm; the front end of the transmission pin B has a spherical structure; one end of an elastic element is fixedly connected to the bottom of the transmission slider; the other end of the elastic element is fixedly mounted on the top of the support frame; heat dissipation holes are evenly arranged in a ring on the outer wall of the elastic element; a guide groove is formed at the top inside the support frame; a rectangular guide block is slidably mounted inside the guide groove; one end of a spring C is embedded in the outer side of the guide block.

[0005] The other end of the spring C is embedded in the outer wall of the guide groove; an arc-shaped limiting clamp is fixedly installed at the bottom end of the guide block; a rectangular driven pin is fixedly installed at the bottom end of the limiting clamp; a disc-shaped transmission disk is rotatably installed inside the support frame; and an arc-shaped transmission groove is arranged around the top of the transmission disk.

[0006] The driven pin is also slidably installed inside the transmission groove; two connecting rods are symmetrically fixedly installed on the outer circumference of the transmission disc; a spring D is embedded between the outer wall of the connecting rod and the inner wall of the support frame; a circular transmission ring is fixedly installed at the outer end of the connecting rod; the transmission ring is also rotatably installed on the outer circumference of the support frame; a spiral groove is opened on the outer wall of the transmission ring.

[0007] After the transmission pin B moves downward to a certain position along with the transmission slider, the spherical structure of the transmission pin B will slide into the interior of the slide groove. After the transmission pin B slides into the interior of the slide groove, it continues to descend. The slide groove will use its own spiral structure to convert the descent force of the transmission pin B into rotational force and provide it to the transmission ring.

[0008] When the transmission pin A moves downward, the spiral groove will use its own structure to convert the downward force of the transmission pin A into a deflection force to provide to the temperature control plate; when the transmission ring rotates, it will carry the connecting rod and the transmission disc to rotate; when the transmission disc rotates, it will use the arc structure of the transmission groove to carry the driven pin, the limit clamp and the guide block to move along the guide groove.

[0009] This utility model provides a valve seat high temperature and high pressure durability testing device, which has the following technical features and implementation methods:

[0010] The testing device uses a rotating adjusting screw. This screw, under the action of a corresponding structure, moves a transmission slider along a guide rail. The movement of the transmission slider pushes the piston plate inside the hot pressing chamber inward, thus changing the volume of the chamber. Pressure changes are monitored in real time by a pressure sensor. Simultaneously, the movement of the transmission slider also causes the transmission arm to deflect downward. This deflection drives the temperature control plate to slide along the guide rail, changing the distance between the heating element on the temperature control plate and the hot pressing chamber, thereby achieving dynamic temperature regulation within the hot pressing chamber.

[0011] The testing device combines pressure and temperature regulation within the hot-pressing chamber, eliminating a separate operation step, reducing the time spent adjusting test parameters, and improving testing efficiency.

[0012] The technical solution of this utility model achieves the above-mentioned functions through the connection and positional relationships of specific components. For example, the adjusting screw is connected to the transmission slider via a thread, and the transmission slider is fixed to the support frame via a guide rail, ensuring that it can only move in a straight line; the transmission arm is connected to the spiral groove of the temperature control plate via transmission pin A, ensuring that the deflection of the transmission arm can be converted into the sliding of the temperature control plate; transmission pin B is connected to the transmission ring via a groove, ensuring that the movement of the transmission slider can be converted into the rotational motion of the transmission ring. These specific connection and positional relationships together constitute the core technical features of this utility model.

[0013] Furthermore, this invention achieves rapid clamping and release of the test valve seat through the design of an elastic element. When the transmission slider moves downward, the elastic element is compressed, and the limiting clamp moves downward accordingly, thereby releasing the clamping of the test valve seat; when the transmission slider moves upward, the elastic element returns to its original state, and the limiting clamp moves upward accordingly, re-clamping the test valve seat. This design not only simplifies the operation process but also improves the stability and reliability of the testing device.

[0014] In summary, this utility model, through a series of specific technical means and component combinations, solves the shortcomings of the existing technology and provides a valve seat high temperature and high pressure durability testing device that is easy to operate, highly efficient, and highly stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the main components of the testing device and their connection relationships, including the hot pressing chamber, the temperature control box, the adjusting screw, and the support frame.

[0016] Figure 2 This is a partially enlarged structural diagram of the present invention, which focuses on showing the cooperation relationship between the transmission slider, transmission arm, temperature control plate and spiral groove, as well as the connection method between transmission pin A and groove.

[0017] Figure 3 This is a top view of the present invention, which mainly shows the installation position of the test valve seat, the working state of the limit clamp, and the linkage relationship between the transmission ring and the transmission disc.

[0018] The attached diagram is labeled as follows: 1. Hot pressing chamber; 2. Temperature control box; 3. Adjusting screw; 4. Support frame; 5. Transmission slider; 6. Transmission arm; 7. Temperature control plate; 8. Spiral groove; 9. Transmission pin A; 10. Transmission pin B; 11. Elastic element; 12. Limiting clamp; 13. Transmission disc; 14. Transmission ring; 15. Test valve seat. Detailed Implementation

[0019] This utility model provides a valve seat high-temperature and high-pressure durability testing device, whose main structure includes a hot-pressing chamber 1, a temperature control box 2, an adjusting screw 3, a support frame 4, a transmission slider 5, a transmission arm 6, a temperature control plate 7, a spiral groove 8, a transmission pin A9, a transmission pin B10, an elastic element 11, a limiting clamp 12, a transmission disc 13, a transmission ring 14, and a test valve seat 15. The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1As shown, the hot pressing chamber 1 has a cylindrical structure with a sliding piston plate inside. An air inlet is located at the top of the chamber, and an exhaust outlet is located at the bottom. A pressure sensor is fixedly installed on the outer wall of the hot pressing chamber 1 to monitor pressure changes in real time. A temperature control box 2 is fixedly installed on one side of the hot pressing chamber 1. Inside the temperature control box 2 is an arc-shaped temperature control plate 7, with multiple heating elements embedded in its inner wall. A spiral groove 8 is formed on the outer wall of the temperature control plate 7, which works in conjunction with a transmission pin A9. An adjusting screw 3 is rotatably installed at the rear bottom of the hot pressing chamber 1, and an operating handwheel is fixedly installed at the top of the adjusting screw 3. The adjusting screw 3 is connected to a transmission slider 5 via a thread. The transmission slider 5 is slidably mounted on guide rails fixed on the left and right sides of the top of the support frame 4. A transmission arm 6 is fixedly installed on the rear bottom of the transmission slider 5. A transmission pin A9 is fixedly installed at the bottom front side of the transmission arm 6. The front end of the transmission pin A9 is spherical and slidably installed inside the spiral groove 8. A transmission pin B10 is fixedly installed at the top front side of the transmission arm 6. The front end of the transmission pin B10 is also spherical. One end of an elastic element 11 is fixedly connected to the bottom of the transmission slider 5, and the other end of the elastic element 11 is fixedly installed on the top of the support frame 4. Heat dissipation holes are evenly arranged in a ring on the outer wall of the elastic element 11.

[0021] The support frame 4 has a guide groove at its top interior. A rectangular guide block is slidably mounted inside the guide groove. One end of a spring C is embedded in the outer side of the guide block, and the other end of the spring C is embedded in the outer wall of the guide groove. An arc-shaped limiting plate 12 is fixedly mounted at the bottom end of the guide block, and a rectangular driven pin is fixedly mounted at the bottom end of the limiting plate 12. A disc-shaped transmission disk 13 is also rotatably mounted inside the support frame 4. An arc-shaped transmission groove is arranged around the top of the transmission disk 13, and the driven pin is slidably mounted inside the transmission groove. Two connecting rods are symmetrically fixedly mounted on the outer circumference of the transmission disk 13. A spring D is embedded between the outer wall of the connecting rod and the inner wall of the support frame 4. A circular transmission ring 14 is fixedly mounted on the outer end of the connecting rod and rotatably mounted on the outer circumference of the support frame 4. A spiral groove is formed on the outer wall of the transmission ring 14. After the transmission pin B10 moves downward to a certain position along with the transmission slider 5, the spherical structure of the transmission pin B10 will slide into the interior of the groove. The groove uses its own spiral structure to convert the downward force of the transmission pin B10 into rotational force and provide it to the transmission ring 14.

[0022] In actual operation, the operator rotates the handwheel of the adjusting screw 3 to make it rotate. Since the adjusting screw 3 is connected to the transmission slider 5 via a thread, the rotation of the adjusting screw 3 will drive the transmission slider 5 to move linearly along the guide rail. The movement of the transmission slider 5 will push the piston plate in the hot pressing chamber 1 to contract inward, thereby changing the volume of the hot pressing chamber 1. The pressure change in the hot pressing chamber 1 is monitored in real time by a pressure sensor on the outer wall. At the same time, the movement of the transmission slider 5 will also cause the transmission arm 6 to deflect downward. The deflection of the transmission arm 6 will drive the transmission pin A9 to move along the spiral slide 8. The spiral slide 8 uses its own structure to convert the downward force of the transmission pin A9 into a deflection force, thereby causing the temperature control plate 7 to slide along the guide rail. The sliding of the temperature control plate 7 will change the distance between the heating element on it and the hot pressing chamber 1, realizing the dynamic adjustment of the temperature in the hot pressing chamber 1.

[0023] Furthermore, as the transmission slider 5 continues to move downwards, the spherical structure of the transmission pin B10 slides into the spiral groove on the outer wall of the transmission ring 14. As the transmission slider 5 descends further, the spiral groove converts the downward force of the transmission pin B10 into rotational force, thereby driving the transmission ring 14 to rotate. The rotation of the transmission ring 14 causes the connecting rod and transmission disc 13 to rotate synchronously. When the transmission disc 13 rotates, it utilizes the arc-shaped structure of the transmission groove to drive the driven pin, the limiting clamp 12, and the guide block to move along the guide groove. The movement of the limiting clamp 12 clamps or releases the test valve seat 15. When the transmission slider 5 moves upwards, the elastic element 11 returns to its original state, and the limiting clamp 12 moves upwards accordingly, re-clamping the test valve seat 15.

[0024] In the above process, the design of the elastic element 11 enables rapid clamping and release of the test valve seat 15. When the transmission slider 5 moves downward, the elastic element 11 is compressed, and the limiting clamp 12 moves downward accordingly, releasing the clamp on the test valve seat 15; when the transmission slider 5 moves upward, the elastic element 11 returns to its original state, and the limiting clamp 12 moves upward accordingly, re-clamping the test valve seat 15. This design simplifies the operation process and improves the stability and reliability of the testing device.

[0025] In summary, this utility model, through a series of specific technical means and component combinations, solves the shortcomings of the existing technology and provides a valve seat high temperature and high pressure durability testing device that is easy to operate, highly efficient, and highly stable.

[0026] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0027] In actual operation, the operator first places the test valve seat 15 into the top circular through hole of the support frame 4, ensuring its position is aligned with the limiting clamp 12. Then, by rotating the operating handwheel of the adjusting screw 3, the adjusting screw 3 is rotated. Since the adjusting screw 3 is connected to the transmission slider 5 via threads, the rotation of the adjusting screw 3 drives the transmission slider 5 to move linearly along the guide rail. The downward movement of the transmission slider 5 pushes the piston plate inside the hot pressing chamber 1 to contract inward, thereby changing the volume inside the hot pressing chamber 1. At this time, the pressure sensor on the outer wall of the hot pressing chamber 1 monitors the internal pressure changes in real time to ensure that the pressure of the test environment reaches the set value.

[0028] Simultaneously, the movement of the transmission slider 5 causes the transmission arm 6 to deflect downwards. A transmission pin A9 is fixedly installed at the bottom front end of the transmission arm 6. The spherical structure of the transmission pin A9 is slidably mounted inside the spiral groove 8 on the outer wall of the temperature control plate 7. As the transmission slider 5 descends, the transmission pin A9 moves along the spiral groove 8. The spiral groove 8 uses its own structure to convert the descending force of the transmission pin A9 into a deflecting force, thereby causing the temperature control plate 7 to slide along the guide rail. The sliding of the temperature control plate 7 changes the distance between its heating element and the hot pressing chamber 1, thus achieving dynamic adjustment of the temperature inside the hot pressing chamber 1. In this way, the device can simultaneously achieve precise control of pressure and temperature during testing, simplifying the operation process.

[0029] As the transmission slider 5 continues to move downwards, the transmission pin B10 at the top front of the transmission arm 6 descends into the spiral groove on the outer wall of the transmission ring 14. With further descent of the transmission slider 5, the spiral groove converts the downward force of the transmission pin B10 into rotational force, thereby driving the transmission ring 14 to rotate. The rotation of the transmission ring 14 is transmitted to the transmission disc 13 via the connecting rod, causing the transmission disc 13 to rotate synchronously. The arc-shaped transmission grooves arranged in a ring shape on the top of the transmission disc 13 drive the driven pin, the limiting clamp 12, and the guide block to move along the guide groove. The movement of the limiting clamp 12 clamps the test valve seat 15, ensuring its stability during the test.

[0030] After the test is completed, the operator rotates the operating handwheel of the adjusting screw 3 in the opposite direction, causing the transmission slider 5 to move upward. At this time, the elastic element 11 returns to its original state, and the limiting clamp 12 moves upward accordingly, releasing the clamp on the test valve seat 15. This design achieves the function of quickly clamping and releasing the test valve seat 15 through the compression and recovery of the elastic element 11, which not only improves the operating efficiency but also enhances the reliability of the device.

[0031] Furthermore, throughout the testing process, the uniformly arranged heat dissipation holes on the outer wall of the elastic element 11 effectively dissipate the heat generated during the compression and recovery of the elastic element 11, preventing the device from affecting its performance due to overheating. Simultaneously, the spring C embedded on the outside of the guide block and the spring D embedded between the connecting rod and the inner wall of the support frame 4 work together to ensure smooth operation of the transmission system and reduce the impact of mechanical vibration on the test results.

[0032] In summary, this utility model achieves high-temperature and high-pressure durability testing of the test valve seat 15 through the coordinated operation of components such as the adjusting screw 3, transmission slider 5, transmission arm 6, spiral groove 8, transmission pin A9, transmission pin B10, and elastic element 11. This device not only dynamically adjusts the pressure and temperature within the hot-pressing chamber 1, but also achieves rapid clamping and release of the test valve seat 15 through the design of the limiting clamp 12, significantly improving testing efficiency and stability. The above description is only a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve seat high-temperature and high-pressure durability testing device, comprising: A hot-pressing chamber (1) is cylindrical in shape and has a sliding piston plate inside. The hot-pressing chamber (1) has an air inlet at the top and an exhaust outlet at the bottom. A pressure sensor is fixedly installed on the outer wall of the hot-pressing chamber (1). A temperature control box (2) is fixedly installed on one side of the hot-pressing chamber (1). The temperature control box (2) has an arc-shaped temperature control plate (7) inside. An internal component is embedded in the inner wall of the temperature control plate (7). Multiple heating elements; a spiral groove (8) is provided on the outer wall of the temperature control plate (7); an adjusting screw (3) is rotatably installed at the bottom rear side of the hot pressing cavity (1); a support frame (4) is fixedly installed on the top of the hot pressing cavity (1); a circular through hole is provided in the center of the support frame (4); a test valve seat (15) is inserted into the circular through hole on the support frame (4); rectangular... The structure includes a guide rail; a square transmission slider (5) is slidably mounted on the guide rail; the transmission slider (5) is also connected to an adjusting screw (3) via a thread; an operating handwheel is fixedly mounted on the top of the adjusting screw (3); a transmission arm (6) is fixedly mounted on the bottom rear side of the transmission slider (5); a transmission pin A (9) is fixedly mounted on the front bottom end of the transmission arm (6); the front end of the transmission pin A (9) is spherical; the spherical structure of the transmission pin A (9) is also slidably mounted inside a spiral groove (8); a transmission pin B (10) is fixedly mounted on the front top end of the transmission arm (6); the front end of the transmission pin B (10) is spherical; one end of an elastic element (11) is fixedly connected to the bottom of the transmission slider (5); the other end of the elastic element (11) is fixedly mounted on the top of the support frame (4); heat dissipation holes are evenly arranged in a ring on the outer wall of the elastic element (11).

2. The valve seat high temperature and high pressure durability testing device according to claim 1, characterized in that, The support frame (4) has a guide groove at its top interior; a rectangular guide block is slidably installed inside the guide groove; and one end of a spring C is embedded in the outside of the guide block.

3. The valve seat high temperature and high pressure durability testing device according to claim 2, characterized in that, The other end of the spring C is embedded in the outer end wall of the guide groove; the bottom end of the guide block is fixedly installed with an arc-shaped limiting clamp (12); the bottom end of the limiting clamp (12) is fixedly installed with a rectangular driven pin.

4. The valve seat high temperature and high pressure durability testing device according to claim 3, characterized in that, The support frame (4) is also rotatably mounted with a disc-shaped transmission disk (13); the top of the transmission disk (13) is arranged in a ring shape with an arc-shaped transmission groove.

5. The valve seat high temperature and high pressure durability testing device according to claim 4, characterized in that, The driven pin is also slidably installed inside the transmission groove; two connecting rods are symmetrically fixed on the outer circumference of the transmission disc (13); a spring D is embedded between the outer wall of the connecting rod and the inner wall of the support frame (4).

6. The valve seat high temperature and high pressure durability testing device according to claim 5, characterized in that, The outer end of the connecting rod is fixedly installed with a circular transmission ring (14); the transmission ring (14) is also rotatably installed on the outer circumference of the support frame (4); a spiral groove is provided on the outer wall of the transmission ring (14).

7. The valve seat high temperature and high pressure durability testing device according to claim 6, characterized in that, After the transmission pin B (10) moves downward to a certain position following the transmission slider (5), the spherical structure of the transmission pin B (10) will slide into the interior of the groove.

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