Performance testing device for angular travel control valve
An automated testing system composed of a PLC programmable controller and sensors solves the problems of low efficiency and inconsistent results in the performance testing of angular stroke control valves, achieving efficient and accurate testing, and is applicable to various valve models.
Patent Information
- Application Number
- CN202520364327.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing performance testing of angular stroke control valves is inefficient. Manual testing is time-consuming and labor-intensive, and the test results are inconsistent. Furthermore, existing testing methods are difficult to adapt to valves of different specifications and models, and may damage the valve structure.
The performance testing device, consisting of a PLC programmable controller, a host computer touch screen, an angular displacement sensor, and an electro-proportional valve, acquires the real-time rotation angle and opening/closing signals of the valve through automated control, thereby achieving accurate measurement.
It improves testing efficiency and the accuracy of test results, adapts to valves of different specifications and models, and does not damage the valve structure.
Smart Images
Figure CN223769764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, and in particular to a performance testing device for an angular stroke control valve. Background Technology
[0002] In current industrial production, accurate performance testing of angle-stroke control valves is crucial. Currently, most commercially available methods for testing angle-stroke control valves rely on traditional approaches, primarily manual operation combined with simple measuring tools. This method has several problems. First, manual testing is extremely inefficient, failing to meet the demands of rapid valve testing in large-scale production. In industrial settings requiring large quantities of angle-stroke control valves, such as chemical and petroleum industries, the sheer number of valves produced per batch makes manual testing time-consuming and labor-intensive, severely impacting production schedules. Second, manual testing is highly subjective; different testers have varying operating techniques and judgment standards, making it difficult to guarantee the accuracy and consistency of test results. For example, when measuring the opening and closing angles of a valve, manual readings may contain errors, making it impossible to accurately assess valve performance.
[0003] Meanwhile, existing testing methods are often highly specific, applicable only to certain types or structures of angle-stroke control valves. For the vast majority of angle-stroke control valves on the market with different specifications, models, and structural characteristics, existing testing methods are difficult to apply universally. Furthermore, many existing testing methods require some degree of modification to the control valve's structure during testing. This not only damages the valve's original structure, potentially affecting its performance in actual use, but also increases the complexity and risk of testing, resulting in significant limitations in practical applications. Summary of the Invention
[0004] The purpose of this invention is to provide a performance testing device for angular stroke control valves to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A performance testing device for an angular stroke control valve is provided, which is connected to the angular stroke control valve. The performance testing device for the angular stroke control valve includes: a PLC programmable controller, a host computer touch screen connected to the PLC programmable controller, an angular displacement sensor, and an electro-proportional valve.
[0007] The air inlet of the electro-proportional valve is connected to an external instrument air source, and the air outlet of the electro-proportional valve is connected to the air inlet of the pressure reducing valve of the angular stroke control valve.
[0008] The angular displacement sensor is installed on the angular stroke control valve to obtain the real-time rotation angle of the angular stroke control valve;
[0009] The PLC programmable controller is also connected to the solenoid valve of the angular stroke control valve to control the opening and closing of the angular stroke control valve; the PLC programmable controller is also connected to the position switch of the angular stroke control valve to obtain a signal indicating whether the angular stroke control valve is fully open or closed.
[0010] In one possible implementation, the angular displacement sensor is mounted on the position switch output shaft of the position switch via a connecting block.
[0011] In one possible implementation, the connecting block is fixed to the position switch output shaft by a set screw.
[0012] In one possible implementation, the angular displacement sensor is magnetically connected to the connecting short shaft of the angular stroke control valve via a magnetic base.
[0013] In one possible implementation, the performance testing device for the angular stroke control valve further includes a battery for supplying power to the host computer touch screen, the PLC programmable controller, the angular displacement sensor, the electro-proportional valve, the solenoid valve, and the position switch.
[0014] In one possible implementation, the battery supplies power to the host computer touchscreen, the PLC programmable controller, the angular displacement sensor, the electro-proportional valve, the solenoid valve, and the position switch via a power switch.
[0015] The beneficial effects of the technical solution provided by this utility model include at least the following:
[0016] This technical solution includes a PLC programmable controller, a host computer touchscreen connected to the PLC, an angular displacement sensor, and an electro-proportional valve. The air inlet of the electro-proportional valve is connected to an external instrument air source, and the air outlet is connected to the air inlet of the pressure reducing valve of the angular stroke control valve. The angular displacement sensor is installed on the angular stroke control valve to obtain the real-time rotation angle of the valve. The PLC is also connected to the solenoid valve of the angular stroke control valve to control its opening and closing. Furthermore, the PLC is connected to the position switch of the angular stroke control valve to obtain signals indicating whether the valve is fully open or closed. In this configuration, without altering the structure of the angular stroke control valve itself, a simple installation method is used to complete the performance testing of the valve, improving testing efficiency and assembly pass rate, and offering strong versatility. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0018] Figure 1 This diagram illustrates the connection between a performance testing device for an angular stroke control valve and an angular stroke control valve, according to an exemplary embodiment of the present invention.
[0019] Figure 2 The diagram shows a connection block diagram of a performance testing device for an angular stroke control valve provided in an exemplary embodiment of the present invention.
[0020] Figure 3 This illustration shows a partial installation diagram of a first type of angular displacement sensor for a performance testing device of an angular stroke control valve provided in an exemplary embodiment of the present invention.
[0021] Figure 4 This diagram illustrates the installation of a second type of angular displacement sensor in an exemplary embodiment of the angular stroke control valve performance testing device provided by the present invention.
[0022] Figure 5 This illustration shows a partial installation diagram of a second type of angular displacement sensor for a performance testing device of an angular stroke control valve provided in an exemplary embodiment of the present invention.
[0023] In the picture:
[0024] 1. Performance testing device for angle stroke control valve; 2. Pressure reducing valve; 3. Solenoid valve; 4. Position switch; 41. Position switch output shaft; 5. Connecting short shaft;
[0025] 11. Storage battery; 12. Power switch; 13. Host computer touch screen; 14. PLC programmable controller; 15. Angular displacement sensor; 16. Electro-proportional valve; 17. Connecting block; 18. Set screw; 19. Magnetic base. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Figure 1 This diagram illustrates the connection between the performance testing device for the angular stroke control valve and the angular stroke control valve, according to an exemplary embodiment of the present invention. Figure 2 This diagram illustrates the connection block diagram of a performance testing device for an angular stroke control valve provided in an exemplary embodiment of the present invention. The performance testing device 1 is connected to the angular stroke control valve and includes: a PLC programmable controller 14, a host computer touchscreen 13 connected to the PLC programmable controller 14, an angular displacement sensor 15, and an electro-proportional valve 16. The air inlet of the electro-proportional valve 16 is connected to an external instrument air source, and the air outlet of the electro-proportional valve 16 is connected to the air inlet of the pressure reducing valve 2 of the angular stroke control valve. The angular displacement sensor 15 is mounted on the angular stroke control valve to obtain the real-time rotation angle of the angular stroke control valve. The PLC programmable controller 14 is also connected to the solenoid valve 3 of the angular stroke control valve to control the opening and closing of the angular stroke control valve. The PLC programmable controller 14 is also connected to the position switch 4 of the angular stroke control valve to obtain signals indicating whether the angular stroke control valve is fully open or closed.
[0030] In this embodiment, the host computer touchscreen 13 plays a crucial role. Operators can easily issue commands to the PLC programmable controller 14 via the touchscreen 13, and the PLC 14 responds quickly, enabling the control and data acquisition of various accessories for the diagonal stroke control valve. Through this process, the minimum starting pressure, minimum operating pressure, rated stroke deviation, valve opening time, and closing time of the diagonal stroke control valve can be accurately measured, providing important data for evaluating valve performance.
[0031] In this embodiment, an angular displacement sensor 15 is used to detect the rated stroke of the angular stroke control valve, which changes the previous method of visual comparison with the stroke plate, improves the detection accuracy, and has a simple structure, is easy to carry, and has strong versatility.
[0032] In one example, the model of the host computer touch screen 13 is TPC7022EX; the model of the PLC programmable controller 14 is 6ES7-288-1ST20-0AA0; the model of the angular displacement sensor 15 is HWT101CT-485; and the model of the electro-proportional valve 16 is ITV3030-04N4S5.
[0033] In one implementation, please refer to Figure 1 and Figure 3 The angular displacement sensor 15 is mounted on the position switch output shaft 41 of the position switch 4 via a connecting block 17. The connecting block 17 is fixed to the position switch output shaft 41 by a set screw 18.
[0034] In another implementation, please refer to Figure 4 and Figure 5 The angular displacement sensor 15 is magnetically connected to the connecting short shaft 5 of the angular stroke control valve via a magnetic base 19. This method can address situations where there is insufficient installation space at the actuator end of the angular stroke control valve.
[0035] It is worth mentioning that, as existing technology, when the angular stroke control valve is in operation, the position switch output shaft 41 and the connecting short shaft 5 operate synchronously.
[0036] Further, please refer to Figure 2 The performance testing device 1 for the angular stroke control valve also includes a battery 11 for supplying power to the host computer touch screen 13, PLC programmable controller 14, angular displacement sensor 15, electro-proportional valve 16, solenoid valve 3, and position switch 4. The battery 11 supplies power to the host computer touch screen 13, PLC programmable controller 14, angular displacement sensor 15, electro-proportional valve 16, solenoid valve 3, and position switch 4 via a power switch 12.
[0037] Next, the working principle of a performance testing device for an angular stroke control valve involved in the embodiments of this utility model will be explained.
[0038] First, select the solenoid valve control button on the host computer touch screen. The solenoid valve is opened or closed by the PLC programmable controller, so that the angular stroke control valve is opened or closed along with the air supply of the main air circuit. At the same time as the control valve is activated, the PLC programmable controller captures the feedback signal of the position switch and judges whether the position switch feedback contact is installed properly by the change of the indicator light on the host computer touch screen.
[0039] Secondly, select the action time test interface on the host computer touch screen. The PLC programmable controller captures the on / off signal of the solenoid valve and the feedback signal of the position switch, and processes and calculates the collected signals to measure the opening and closing time of the valve.
[0040] Then, select the running pressure detection interface on the host computer touch screen. The PLC programmable controller converts the given air pressure value into a corresponding current signal and outputs it to the electro-proportional valve. The electro-proportional valve converts the input current signal into a corresponding air signal and outputs it to the pressure reducing valve of the angular stroke control valve, thereby realizing the control of the air source pressure.
[0041] Next, by sending instructions to the PLC programmable controller through the upper computer touch screen, the air source output pressure of the electric proportional valve is automatically adjusted, and the real-time rotation angle fed back by the angular displacement sensor is used to measure the minimum starting pressure and minimum operating pressure of the angular stroke control valve.
[0042] Finally, the angular displacement sensor installed on the angular stroke control valve rotates synchronously with the output shaft of the position switch or the short shaft connected to it, and outputs a signal to the PLC programmable controller. The PLC programmable controller processes the collected signal and performs data calculations, and transmits the calculation results to the host computer touch screen for display (the calculation results indicate whether the rated stroke deviation meets the factory standard requirements).
[0043] In summary, this technical solution includes a PLC programmable controller, a host computer touchscreen connected to the PLC, an angular displacement sensor, and an electro-proportional valve. The air inlet of the electro-proportional valve is connected to an external instrument air source, and the air outlet is connected to the air inlet of the pressure reducing valve of the angular stroke control valve. The angular displacement sensor is installed on the angular stroke control valve to obtain the real-time rotation angle of the valve. The PLC programmable controller is also connected to the solenoid valve of the angular stroke control valve to control its opening and closing. Furthermore, the PLC programmable controller is connected to the position switch of the angular stroke control valve to obtain signals indicating whether the valve is fully open or closed. Under these conditions, without altering the structure of the angular stroke control valve itself, a simple installation method is used to complete the performance testing of the angular stroke control valve, improving testing efficiency and assembly qualification rate, and demonstrating strong versatility.
[0044] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A performance testing device for an angular stroke control valve, which is connected to the angular stroke control valve, characterized in that, The performance testing device (1) of the angular stroke control valve comprises a PLC programmable controller (14), and an upper computer touch screen (13), an angular displacement sensor (15) and an electric proportional valve (16) connected with the PLC programmable controller (14). An air inlet of the electric proportional valve (16) is connected with an external instrument air source, and an air outlet of the electric proportional valve (16) is connected with an air inlet of a pressure reducing valve (2) of the angular stroke control valve. The angular displacement sensor (15) is installed on the angular stroke control valve to obtain the real-time rotating angle of the angular stroke control valve. The PLC programmable controller (14) is further connected with an electromagnetic valve (3) of the angular stroke control valve to control the opening and closing of the angular stroke control valve, and the PLC programmable controller (14) is further connected with a position switch (4) of the angular stroke control valve to obtain a signal of whether the angular stroke control valve is completely opened or closed.
2. The performance testing device of an angular stroke control valve according to claim 1, characterized by The angular displacement sensor (15) is installed on a position switch output shaft (41) of the position switch (4) through a connecting block (17).
3. The performance testing device for an angular stroke control valve according to claim 2, characterized in that, The connecting block (17) is fixed with the position switch output shaft (41) through a set screw (18).
4. The angular stroke control valve performance testing device of claim 1, wherein, The angular displacement sensor (15) is magnetically connected with a connecting short shaft (5) of the angular stroke control valve through a magnetic watch seat (19).
5. The angular stroke control valve performance testing device of claim 1, wherein, The performance testing device (1) of the angular stroke control valve further comprises a storage battery (11) for supplying power to the upper computer touch screen (13), the PLC programmable controller (14), the angular displacement sensor (15), the electric proportional valve (16), the electromagnetic valve (3) and the position switch (4).
6. The angular stroke control valve performance testing device of claim 5, wherein, The storage battery (11) supplies power to the upper computer touch screen (13), the PLC programmable controller (14), the angular displacement sensor (15), the electric proportional valve (16), the electromagnetic valve (3) and the position switch (4) through a power switch (12).