Valve positioner positioning test equipment

Abstract

The utility model discloses positioning test equipment for a valve positioner. The positioning test equipment comprises a mounting bracket, a pipeline module arranged on the mounting bracket, a laser test assembly arranged in the pipeline module, and a clamping assembly arranged at the top of the mounting bracket and used for fixing the valve positioner. According to the scheme, the mounting bracket, the pipeline module, the laser testing assembly and the clamping assembly are integrated, so that high precision, high stability and high universality of the positioning test of the valve positioner are realized. The laser positioner and the light reflecting assembly are correspondingly arranged, so that the actual opening degree of the valve can be accurately captured, and the testing precision is greatly improved by comparing the actual opening degree with a feedback signal of the positioner; the clamping assembly and the limiting slot structure ensure that the positioner is stably installed, and looseness errors are avoided. Compared with traditional equipment, the structure is simpler, a complex fluid system is not needed, operation is convenient, and testing efficiency and reliability are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of valve positioner testing, and more specifically, to a valve positioner positioning testing device. Background Technology

[0002] As a key accessory for control valves, the valve positioner converts the electrical signal (e.g., 4-20mA) output by the control system into the mechanical displacement of the valve stem, precisely controlling the valve opening and thus regulating parameters such as flow rate and pressure of the medium in the pipeline. The positioning accuracy of the valve positioner directly affects the stability and reliability of the entire control system; therefore, rigorous positioning tests must be performed before leaving the factory or during maintenance.

[0003] For example, the valve positioner positioning test device disclosed in patent number CN218885407U solves the problems of insufficient testing stability, inconvenient tool storage, and lack of data recording function in existing equipment by setting up a housing, supporting components, storage components, and a computer body, thereby improving the functionality and convenience of the positioning test device. However, its method of testing by water flow rate results in a complex structure and poor practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a valve positioner positioning test device to solve the technical problems existing in the background art.

[0005] This utility model provides a valve positioner positioning test device, including a mounting bracket, a pipe module disposed on the mounting bracket, a laser test component disposed in the pipe module, and a clamping component disposed on the top of the mounting bracket for fixing the valve positioner;

[0006] The pipeline module includes a valve pipeline and an insert plate inserted into the valve pipeline. The insert plate is detachably connected to the valve positioner. The laser testing component includes a laser positioner fixedly installed on the valve pipeline and a reflective component installed on the insert plate. The laser positioner and the reflective component are arranged vertically in correspondence.

[0007] In a preferred embodiment, the reflective assembly includes a reflective bracket and a reflective sheet embedded in the bottom of the reflective bracket.

[0008] In a preferred embodiment, the reflective bracket is disposed on one side of the insert plate and located at the bottom of the insert plate.

[0009] In a preferred embodiment, the top of the insert plate is provided with a mounting base, the mounting base is provided with a limit slot, the bottom of the valve positioner is provided with a mounting shaft, the mounting shaft is inserted into the limit slot and fixed by a hand-tightening positioning post on the limit slot.

[0010] In a preferred embodiment, the top of the mounting bracket is provided with a circular through groove, through which the rod of the valve positioner passes.

[0011] In a preferred embodiment, the clamping assembly includes a fixed clamping plate and a movable clamping plate arranged in a mirror image of the fixed clamping plate. The bottom of the movable clamping plate is slidably connected to the mounting bracket, and a driving member is connected to the movable clamping plate to drive it to move closer to or away from the fixed clamping plate.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] This solution achieves high precision, high stability, and strong versatility in valve positioner positioning testing by integrating mounting brackets, pipeline modules, laser testing components, and clamping components. The corresponding settings of the laser positioner and reflective components accurately capture the actual valve opening degree, and by comparing this with the positioner's feedback signal, testing accuracy is significantly improved. The clamping components and limit slot structure ensure a stable installation of the positioner, avoiding loosening errors. Compared to traditional equipment, the structure is simpler, requires no complex fluid systems, is easy to operate, and effectively improves testing efficiency and reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is the front view of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the laser testing component of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Mounting bracket, 2. Valve pipe, 3. Insert plate, 4. Laser positioner, 5. Reflector bracket, 6. Reflector sheet, 7. Mounting base, 8. Mounting shaft, 9. Hand-tightening positioning post, 10. Circular through groove, 11. Fixed clamping plate, 12. Moving clamping plate, 13. Drive component, 14. Valve positioner. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0019] like Figures 1-3 As shown, the present invention provides a valve positioner positioning test device, including a mounting bracket 1, a pipe module disposed on the mounting bracket 1, a laser testing component disposed in the pipe module, and a clamping component disposed on the top of the mounting bracket 1 for fixing the valve positioner 14.

[0020] The pipeline module includes a valve pipeline 2 and an insert plate 3 inserted into the valve pipeline 2. The insert plate 3 is detachably connected to the valve positioner 14. The laser testing assembly includes a laser positioner 4 fixedly installed on the valve pipeline 2 and a reflective assembly installed on the insert plate 3. The laser positioner 4 and the reflective assembly are arranged vertically in correspondence.

[0021] Mounting bracket 1 provides stable support for the entire equipment. The pipeline module simulates the actual pipeline environment in which the valve operates. The slide plate 3 moves with the valve stem driven by the valve positioner 14. In the laser testing assembly, the laser beam emitted by the laser positioner 4 illuminates the reflective component that moves with the slide plate 3. The displacement of the slide plate 3 is detected in real time through the laser reflection signal, thus reflecting the change in valve opening. The integrated design of each component, with clear division of labor and collaborative work, provides a stable structural foundation for the positioning test of the valve positioner 14. The corresponding arrangement of the laser and reflective components enables high-precision detection of valve opening.

[0022] The reflective assembly includes a reflective bracket 5 and a reflective sheet 6 embedded in the bottom of the reflective bracket 5. The reflective bracket 5 is disposed on one side of the insert plate 3 and located at the bottom of the insert plate 3. The reflective bracket 5 fixes the reflective sheet 6 and moves synchronously with the insert plate 3. The reflective sheet 6 stably reflects the laser beam emitted by the laser positioner 4 back to the laser positioner 4, enabling the laser positioner 4 to accurately capture the displacement changes of the insert plate 3. The reflective assembly has a simple structure, the placement of the reflective sheet 6 enhances the stability of the laser reflection signal, ensures the accuracy of the laser testing assembly in displacement detection, and the positional design of the reflective bracket 5 avoids interference with other components.

[0023] During testing, when the valve positioner 14 is working, it drives the valve stem to move the slide plate 3. The reflective component moves with the slide plate 3, causing the reflection path of the laser beam to change. The laser positioner 4 calculates the actual displacement of the slide plate 3 in real time by receiving the position change of the reflected light. This displacement directly corresponds to the actual opening degree of the valve (e.g., 0%~100%).

[0024] Simultaneously, the valve positioner 14 converts the valve position information it detects into an electrical signal (e.g., 4-20mA) and feeds it back to the control system. This signal represents its "theoretical opening degree." By comparing the "actual opening degree" obtained from the laser test with the "theoretical opening degree" fed back by the valve positioner 14, if the deviation between the two is within a preset allowable range (e.g., ±0.5% of full scale), it indicates that the valve positioner 14 is accurately positioned; if the deviation exceeds the range, it indicates that there is an error and the positioning is inaccurate.

[0025] The mounting bracket 1 has a circular through groove 10 at its top, through which the rod of the valve positioner 14 passes. The insert plate 3 has a mounting base 7 at its top, which has a limit slot. The valve positioner 14 has a mounting shaft 8 at its bottom, which is inserted into the limit slot and fixed by a hand-tightening positioning post 9 on the limit slot.

[0026] The circular through groove 10 provides a movement channel for the rod of the valve positioner 14, avoiding interference with the mounting bracket 1 when the rod moves; the mounting shaft 8 is inserted into the limit slot and fixed by hand-tightening the positioning pin 9, realizing a detachable rigid connection between the valve positioner 14 and the slide plate 3, ensuring that the two move synchronously.

[0027] The clamping assembly includes a fixed clamping plate 11 and a movable clamping plate 12 that is mirror-displayed with the fixed clamping plate 11. The bottom of the movable clamping plate 12 is slidably connected to the mounting bracket 1, and a driving member 13 is connected to the movable clamping plate 12 to drive it to move closer to or away from the fixed clamping plate 11.

[0028] The driving component 13 drives the movable clamping plate 12 to slide along the mounting bracket 1. Through the relative movement of the movable clamping plate 12 and the fixed clamping plate 11, the valve positioner 14 is clamped or released, thereby achieving rapid fixation of the valve positioner 14 and avoiding test errors caused by the positioner loosening during the test. At the same time, the setting of the driving component 13 makes the operation more convenient and improves the equipment's versatility for valve positioners 14 of different specifications.

[0029] This solution achieves high precision, high stability, and strong versatility in valve positioner positioning testing by integrating mounting brackets, pipeline modules, laser testing components, and clamping components. The corresponding settings of the laser positioner and reflective components accurately capture the actual valve opening degree, and by comparing this with the positioner's feedback signal, testing accuracy is significantly improved. The clamping components and limit slot structure ensure a stable installation of the positioner, avoiding loosening errors. Compared to traditional equipment, the structure is simpler, requires no complex fluid systems, is easy to operate, and effectively improves testing efficiency and reliability.

[0030] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A valve positioner positioning test device, characterized in that: It includes a mounting bracket, a pipe module mounted on the mounting bracket, a laser testing component mounted inside the pipe module, and a clamping component for fixing the valve positioner mounted on the top of the mounting bracket; The pipeline module includes a valve pipeline and an insert plate inserted into the valve pipeline. The insert plate is detachably connected to the valve positioner. The laser testing component includes a laser positioner fixedly installed on the valve pipeline and a reflective component installed on the insert plate. The laser positioner and the reflective component are arranged vertically in correspondence.

2. The valve positioner positioning test device according to claim 1, characterized in that: The reflective assembly includes a reflective bracket and a reflective sheet embedded in the bottom of the reflective bracket.

3. The valve positioner positioning test device according to claim 2, characterized in that: The reflective bracket is disposed on one side of the insert plate and located at the bottom of the insert plate.

4. The valve positioner positioning test device according to claim 1, characterized in that: The top of the insert plate is provided with a mounting base, and the mounting base is provided with a limit slot. The bottom of the valve positioner is provided with a mounting shaft, which is inserted into the limit slot and fixed by a hand-tightening positioning post on the limit slot.

5. The valve positioner positioning test device according to claim 1, characterized in that: The top of the mounting bracket is provided with a circular through groove, through which the rod of the valve positioner passes.

6. The valve positioner positioning test device according to claim 1, characterized in that: The clamping assembly includes a fixed clamping plate and a movable clamping plate that is mirror-displayed with the fixed clamping plate. The bottom of the movable clamping plate is slidably connected to the mounting bracket, and a driving component is connected to the movable clamping plate to drive it to move closer to or away from the fixed clamping plate.

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