Pressure reducing valve detection device

Abstract

The utility model discloses a pressure reducing valve detection device, which relates to the technical field of industrial equipment detection and comprises a front pipeline, a front valve arranged on the front pipeline and used for controlling the opening and closing of the front pipeline, a front pressure gauge used for detecting the pressure in the front pipeline, and a rear pipeline, the rear pipeline is provided with a rear valve used for controlling opening and closing of the rear pipeline, a rear pressure gauge used for detecting pressure in the rear pipeline and a damping piece, and the damping piece is located on the side, away from the front pipeline, of the rear pipeline and used for conducting damping pressure relief on gas in the rear pipeline. The device can be installed on a production pipeline system after complete testing and accurate adjusting functions are guaranteed, so that damage to a production appliance system is avoided, damage to personnel caused by air leakage and overheating of the steam pressure reducing valve after maintenance is avoided, and long-time maintenance waiting is avoided.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment testing technology, and more specifically, to a pressure reducing valve testing device. Background Technology

[0002] Steam pressure reducing valves are an indispensable component in the field of steam fluid control. Their main function is to automatically regulate and control pressure in pipeline systems to ensure safe and stable system operation. When a steam pressure reducing valve malfunctions, it needs to be disassembled for repair. After repair, it needs to be installed on the steam pipeline for testing and adjustment. Since the steam in the pipeline is saturated steam, the repaired pressure reducing valve undergoes high-pressure, high-temperature saturated steam testing. If the pressure reducing valve is not properly repaired, and the pressure after the valve is the same as the pressure before the valve, it will damage the production equipment system downstream of the valve. Furthermore, if the pressure reducing valve leaks, it will cause injury to personnel. Disassembling and repairing the high-temperature pressure reducing valve again requires a long cooling time, which greatly wastes production time.

[0003] In summary, how to provide a device that facilitates the testing of pressure reducing valves is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a pressure reducing valve testing device that can quickly test steam pressure reducing valves and avoid the need for rework when testing pressure reducing valves online.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pressure reducing valve detection device, comprising:

[0007] A pre-pipeline, on which a pre-valve for controlling the opening and closing of the pre-pipeline and a pre-pressure gauge for detecting the pressure inside the pre-pipeline are installed;

[0008] A post-pipeline is provided with a post-pipeline valve for controlling the opening and closing of the post-pipeline and a post-pressure gauge for detecting the pressure inside the post-pipeline.

[0009] A damping element is located on the side of the rear pipe away from the front pipe and is used to dampen and relieve pressure on the gas in the rear pipe.

[0010] Furthermore, this utility model also includes:

[0011] An operating table is provided with several support seats, and both the pre-installed pipe and the post-installed pipe are installed on the operating table through the support seats.

[0012] Furthermore, this utility model also includes:

[0013] Two replaceable pipes are provided, which are detachably connected to the front pipe and the rear pipe, respectively, to accommodate different models of pressure reducing valves.

[0014] Furthermore, in this invention, the side of the replaceable pipe connected to the pressure reducing valve is a flange, and the other end of the replaceable pipe is a first chuck.

[0015] Furthermore, in this invention, a second chuck is provided at the end of both the pre-pipe and the post-pipe that are close to each other, and the first chuck and the second chuck are connected by a quick-release clamp.

[0016] Furthermore, the damping element is a plate-shaped structure with a pressure relief hole, and the damping element is installed on the rear pipe.

[0017] Furthermore, the rear pipe is detachably provided with an extension pipe at the end away from the front pipe, and the damping element is located between the extension pipe and the rear pipe and is fixed by a quick-release clamp.

[0018] Furthermore, the diameter of the pressure relief hole is 1-1.5 mm.

[0019] Furthermore, a silencer is installed at the end of the extended pipe away from the rear pipe.

[0020] Furthermore, the operating table is provided with a support for supporting the pressure reducing valve.

[0021] The pressure-reducing valve testing device provided by this utility model involves installing the pressure-reducing valve to be tested between and connecting it to a pre-pipeline and a post-pipeline. A pre-pipeline valve for controlling the opening and closing of the pre-pipeline and a pre-pressure gauge for detecting the pressure inside the pre-pipeline are installed on the pre-pipeline. A post-pipeline valve for controlling the opening and closing of the post-pipeline and a post-pressure gauge for detecting the pressure inside the post-pipeline are installed on the post-pipeline. After the pressure-reducing valve to be tested is installed, compressed air or high-pressure steam at a certain pressure enters the testing device from the inlet end of the pre-pipeline. The pre-pipeline valve and the post-pipeline valve are opened. After the air pressure passes through the steam pressure-reducing valve, the post-pressure gauge displays "0". When the steam pressure-reducing valve is slowly adjusted, the pressure inside the post-pipeline... The pressure gauge displays data. If the value of the rear pressure gauge increases as the opening of the steam pressure reducing valve increases and decreases as the opening decreases, it indicates that the steam pressure reducing valve can adjust normally. Simultaneously, when air is introduced, both the front and rear valves are closed. High-pressure gas remains in the device. When the values ​​of the two pressure gauges remain constant, the pressure reducing valve does not leak. The damping element dampens the compressed air, ensuring the stability of the entire testing device. This device allows for the repair of the steam pressure reducing valve, ensuring it is tested and its adjustment function is accurate before installation on the production pipeline system. This avoids damage to production equipment, prevents steam pressure reducing valve leaks and overheating that could cause injury to personnel after repair, and avoids prolonged maintenance waiting times. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of the device provided by this utility model during use;

[0024] Figure 2 A schematic diagram of the partially disassembled replaceable pipe provided by this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the damping component provided by this utility model.

[0026] Figures 1-3 In the accompanying drawings, the reference numerals include:

[0027] 1. Pre-pipeline; 2. Pre-pressure gauge; 3. Pre-valve; 4. Replaceable pipeline; 5. Post-pipeline; 6. Post-pressure gauge; 7. Post-valve; 8. Support base; 9. Operating panel; 10. Extension pipeline; 11. Silencer; 12. Quick release clamp; 13. Damping component; 14. Pressure relief hole; 15. Flange; 16. First chuck; 17. Second chuck. Detailed Implementation

[0028] 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.

[0029] The core of this invention is to provide a pressure reducing valve testing device that can quickly test steam pressure reducing valves, avoiding the need for rework during online testing of pressure reducing valves.

[0030] Please refer to Figures 1-3 A pressure reducing valve detection device includes a pre-pipeline 1, a post-pipeline 5, and a damping element 13. A pre-pipeline 1 is equipped with a pre-pipeline 1 valve 3 for controlling the opening and closing of the pre-pipeline 1 and a pre-pipeline 1 pressure gauge 2 for detecting the pressure inside the pre-pipeline 1. A post-pipeline 5 is equipped with a post-pipeline 5 valve 7 for controlling the opening and closing of the post-pipeline 5 and a post-pipeline 13 for detecting the pressure inside the post-pipeline 5. The damping element 13 is located on the side of the post-pipeline 5 away from the pre-pipeline 1 and is used to dampen and release the gas pressure inside the post-pipeline 5.

[0031] It should be noted that the embodiments of this utility model can use pressure gauges suitable for steam pipelines.

[0032] In addition, compressed air can be used as the detection medium in the embodiments of this utility model. Using compressed air can improve the safety of the detection device, or steam can be used as the detection medium.

[0033] In use, the pressure reducing valve to be tested is installed between and connected to the pre-pipeline 1 and the post-pipeline 5. A pre-pipeline 1 is equipped with a pre-valve 3 for controlling its opening and closing, and a pre-pressure gauge 2 for detecting the pressure inside the pre-pipeline 1. The post-pipeline 5 is equipped with a post-valve 7 for controlling its opening and closing, and a post-pressure gauge 6 for detecting the pressure inside the post-pipeline 5. After the pressure reducing valve is installed, compressed air or high-pressure steam of a certain pressure enters the testing device from the inlet end of the pre-pipeline 1. The pre-valve 3 and post-valve 7 are opened. After the air pressure passes through the steam pressure reducing valve, the post-pressure gauge 6 displays "0". When the steam pressure reducing valve is slowly adjusted, the post-pressure gauge... 6. If the value of the rear pressure gauge 6 increases as the opening of the steam pressure reducing valve increases and decreases as the opening decreases, it indicates that the steam pressure reducing valve can be adjusted normally. At the same time, when air is introduced, the front valve 3 and the rear valve 7 are closed simultaneously. At this time, high-pressure gas remains in the device. When the values ​​of the two pressure gauges remain unchanged, there is no air leakage in the pressure reducing valve. The damping element 13 dampens the compressed air, ensuring the stability of the entire testing device. Through the above device, the steam pressure reducing valve can be repaired and tested to ensure that it is in good working order and that the adjustment function is accurate before it is installed on the production pipeline system. This avoids damage to the production equipment system, avoids air leakage and overheating of the steam pressure reducing valve after maintenance, which could cause injury to personnel, and avoids long maintenance waiting times.

[0034] Please refer to Figure 1 In some embodiments, the system also includes an operating table 9, which is provided with several support seats 8. Both the front pipe 1 and the rear pipe 5 are mounted on the operating table 9 through the support seats 8. In other words, all components are mounted on the operating table 9, which facilitates the overall movement of the components and makes operation easier.

[0035] Optionally, in some embodiments, wheels may be installed at the bottom of the control panel 9 to facilitate movement of the device.

[0036] Please refer to Figure 1 and Figure 2 To facilitate the replacement of pressure reducing valves of different models, some embodiments also include two replaceable pipes 4, which are detachably connected to the front pipe 1 and the rear pipe 5, respectively, to accommodate different models of pressure reducing valves. In other words, the replaceable pipes 4 enable quick replacement of different pressure-boosting valves, improving the versatility of the device's testing capabilities.

[0037] Please continue. Figure 1In some embodiments, the side of the replaceable pipe 4 connected to the pressure reducing valve is a flange 15, and the other end of the replaceable pipe 4 is a first chuck 16. That is to say, there are multiple replaceable pipes 4, and the flange 15 of each replaceable pipe 4 is of different size, while the size of the first chuck 16 is the same. Therefore, for different models of pressure reducing valves, the connection of the pressure reducing valve can be achieved by simply replacing the different replaceable pipes 4.

[0038] Optionally, in some embodiments, a second chuck 17 is provided at the end of the pre-pipe 1 and the post-pipe 5 that are close to each other. The first chuck 16 and the second chuck 17 are connected by a quick-release clamp 12. That is, the first chuck 16 and the second chuck 17 are connected by the quick-release clamp 12. At the same time, the first chuck 16 of different replaceable pipes 4 are the same size, so it is more convenient to replace the replaceable pipe 4. And when the pressure reducing valve needs to be repaired after inspection, the pressure reducing valve can be removed for repair simply by opening the quick-release clamp 12, which is more convenient and faster.

[0039] In other embodiments, flanges 15 of different sizes can be used at both ends of the replaceable pipe 4, that is, flanges 15 of the same size are used at the positions where they are connected to the front pipe 1 and the rear pipe 5.

[0040] Please refer to Figure 3 In some embodiments, the damping element 13 is a plate-shaped structure with a pressure relief hole 14. The damping element 13 is installed on the rear pipe 5. That is, the pressure inside the pipe is released through the pressure relief hole 14 on the damping element 13, ensuring overall stability during the testing process.

[0041] In other embodiments, the damping element 13 can also be replaced by a valve, that is, a control valve is installed on the side of the rear valve 7 away from the front valve, and the purpose of depressurization and stabilization in the detection pipeline can also be achieved by rotating the control valve.

[0042] Please continue. Figure 3 In some embodiments, the end of the rear pipe 5 away from the front pipe 1 is detachably provided with an extension pipe 10. The damping element 13 is located between the extension pipe 10 and the rear pipe 5 and is fixed by a quick-release clamp 12. By placing the damping element 13 between the extension pipe 10 and the rear pipe 5, when it is necessary to replace the damping element 13 of a different diameter pressure relief hole 14, the required damping element 13 can be replaced simply by opening the quick-release clamp.

[0043] Optionally, in some embodiments, the diameter of the pressure relief hole 14 is 1-1.5mm. That is, the damping element 13 can be provided with multiple plate-like structures. In other words, by opening different pressure relief holes 14 on different damping elements 13, different damping elements 13 can be replaced according to the needs of testing.

[0044] Please refer to Figure 1 In some embodiments, a silencer 11 is installed at the end of the extension pipe 10 away from the rear pipe 5. That is, by installing the silencer 11, the high-pressure gas in the pipe can be silenced, and the noise generated by the airflow can be reduced.

[0045] Optionally, in some embodiments, the operating table 9 is provided with a support member for supporting the pressure reducing valve. By supporting the pressure valve body with the support member, the shear force at the pipeline connection position is reduced, the firmness of the pipeline connection position is improved, and the accuracy of the test results is facilitated.

[0046] Optionally, in some embodiments, the support member may adopt a lifting mechanism, for example, including a support plate, with a screw threaded on the operating table 9, and the support plate mounted on the screw. By turning the screw, the height of the support plate can be adjusted, which not only supports the pressure reducing valve, but also enables rapid adjustment for pressure reducing valves of different sizes, which is beneficial to improving the versatility of the testing device.

[0047] In other words, the key point of this utility model embodiment is: compressed air or high-pressure steam at a certain pressure enters the testing device from the inlet end of the pre-pipe 1, the pre-valve 3 and the post-valve 7 are opened, and after the air pressure passes through the steam pressure reducing valve, the post-pressure gauge 6 displays "0". When the steam pressure reducing valve is slowly adjusted, the post-pressure gauge 6 displays data. If the value of the post-pressure gauge 6 increases as the opening of the steam pressure reducing valve increases and decreases as the opening decreases, it indicates that the steam pressure reducing valve can be adjusted normally. At the same time, when air is introduced, the pre-valve 3 and the post-valve 7 are closed simultaneously. At this time, high-pressure gas remains in the device. When the values ​​of the two pressure gauges remain unchanged, there is no air leakage in the pressure reducing valve. The damping element 13 dampens the compressed air, ensuring the stability of the entire testing device. Through the above device, the steam pressure reducing valve can be repaired and tested to ensure that it is in good working order and that the adjustment function is accurate before it is installed on the production pipeline system, avoiding damage to the production equipment system, avoiding air leakage and overheating of the steam pressure reducing valve after maintenance, and avoiding long maintenance waiting times.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The present invention provides a detailed description of a device for facilitating the detection of pressure reducing valves. Specific examples have been used to illustrate the principle and implementation of the present invention. The descriptions of these embodiments are merely illustrative of the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pressure reducing valve detection device, characterized in that, include: A pre-pipeline (1) is provided with a pre-pipeline valve (3) for controlling the opening and closing of the pre-pipeline (1) and a pre-pressure gauge (2) for detecting the pressure inside the pre-pipeline (1). A post-pipeline (5) is provided with a post-valve (7) for controlling the opening and closing of the post-pipeline (5) and a post-pressure gauge (6) for detecting the pressure inside the post-pipeline (5). Damping element (13) is located on the side of the rear pipe (5) away from the front pipe (1) and is used to dampen and depressurize the gas in the rear pipe (5).

2. The pressure reducing valve detection device according to claim 1, characterized in that, Also includes: The operating table (9) is provided with several support seats (8), and the front pipe (1) and the rear pipe (5) are both installed on the operating table (9) through the support seats (8).

3. The pressure reducing valve detection device according to claim 2, characterized in that, Also includes: Two replaceable pipes (4) are detachably connected to the front pipe (1) and the rear pipe (5) respectively, to accommodate different models of pressure reducing valves.

4. The pressure reducing valve detection device according to claim 3, characterized in that, The replaceable pipe (4) is connected to the pressure reducing valve on one side by a flange (15), and the other end of the replaceable pipe (4) is a first chuck (16).

5. The pressure reducing valve detection device according to claim 4, characterized in that, The front pipe (1) and the rear pipe (5) are each provided with a second chuck (17) at one end close to each other. The first chuck (16) and the second chuck (17) are connected by a quick-release clamp (12).

6. The pressure reducing valve detection device according to claim 2, characterized in that, The damping element (13) is a plate-shaped structure, and a pressure relief hole (14) is provided on the damping element (13). The damping element (13) is installed on the rear pipe (5).

7. The pressure reducing valve detection device according to claim 6, characterized in that, The rear pipe (5) is detachably provided with an extension pipe (10) at one end away from the front pipe (1). The damping element (13) is located between the extension pipe (10) and the rear pipe (5) and is fixed by a quick-release clamp (12).

8. The pressure reducing valve detection device according to claim 7, characterized in that, The diameter of the pressure relief hole (14) is 1-1.5 mm.

9. A pressure reducing valve detection device according to claim 7, characterized in that, A silencer (11) is installed at the end of the extension pipe (10) away from the rear pipe (5).

10. A pressure reducing valve detection device according to any one of claims 2-9, characterized in that, The control panel (9) is equipped with a support for supporting the pressure reducing valve.

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