A PS pre-pressing control device based on fuzzy control

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By introducing a sealing cover, sealing plate, and natural gas detector into the PS pre-pressurization control device, the problem of natural gas leakage caused by device aging is solved, sealing detection and convenient maintenance are realized, and the safety and reliability of the device are ensured.

CN224567191UActive Publication Date: 2026-07-28QINGDAO WEIGUANG FOAM PRODUCTS CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: QINGDAO WEIGUANG FOAM PRODUCTS CO LTD
Filing Date: 2025-07-18
Publication Date: 2026-07-28

AI Technical Summary

Technical Problem

Existing fuzzy control-based PS pre-pressurization control devices are prone to natural gas leakage when they age at their connection points with external pipelines, and lack effective detection and protection structures.

Method used

A device comprising an electric valve, a pressure detector, a sealing cover, a sealing plate, and a natural gas detector is designed. Through the rotating and disassembling structure of the sealing cover and sealing plate, combined with a sealing ring and a sealing ring, the connection is sealed, and it is equipped with natural gas detection and alarm functions for easy maintenance.

Benefits of technology

It improves the sealing performance of the connection, enables timely detection and warning of natural gas leaks, facilitates equipment maintenance, and ensures the safe operation of the device.

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Abstract

The utility model discloses a PS pre -pressing control device based on fuzzy control, including electric valve, electric valve one side is equipped with pressure detector, the both ends of pressure detector and electric valve are connected with the connecting pipe, the outside of electric valve and pressure detector is provided with first sealing cover, the bottom of first sealing cover is provided with second sealing cover, the side of second sealing cover and first sealing cover is provided with sealing plate, the inside top of first sealing cover is installed with siren, the utility model discloses, through setting first sealing cover, second sealing cover and sealing plate and wrapping electric valve and pressure detector, when the leakage of electric valve and pressure detector occurs, can be detected by the natural gas detector installed on first sealing cover, then through siren and give an alarm, play the role of warning, and the sealing strip can increase the sealing property of the joint, so that the natural gas detector can detect the natural gas more accurately.

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Description

Technical Field

[0001] This utility model relates to the field of pre-compression control technology, specifically a PS pre-compression control device based on fuzzy control. Background Technology

[0002] A PS pre-compression control device is a specialized device for controlling the pressure pre-compression process in a PS (Pressure Systems). This device ensures stable operation and high efficiency of the pneumatic system by precisely controlling parameters such as pressure and time during the pre-compression process. It employs advanced control algorithms, such as fuzzy control, to achieve precise control of the pre-compression process. It is widely used in industrial fields requiring precise pressure control, such as petrochemicals, power generation, and oil and gas, to improve production efficiency and product quality. In existing fuzzy control PS pre-compression control devices, the application of fuzzy control is mainly reflected in the precise and flexible control of the pre-compression process. By setting up a fuzzy interface, key variables in the pre-compression process (such as pressure and time) are measured and input. These precise input data are converted into fuzzy set identifiers for fuzzy processing. Then, a database containing pre-compression control-related knowledge and experience, as well as a fuzzy control rule base, are established. Fuzzy logic and inference rules are then used to process the input fuzzy data. Finally, the fuzzy results output by the fuzzy inference engine are judged and converted into precise control commands, which are used to adjust the operating parameters of the PS pre-compression control device, such as pressure setpoints and time control, to achieve precise pre-compression control. Existing fuzzy control-based PS pre-pressure control devices are widely used in natural gas transportation systems. They detect the internal pressure of the transportation pipeline, coordinate with valves for control, and then exchange information in real time to achieve pre-pressure control of the gas pressure. However, the following problems still exist: When the aforementioned PS pre-pressurization control device based on fuzzy control is used, it will be connected to an external pipeline. At the connection point and during the use of the equipment, as the components age, natural gas leakage may occur. Existing equipment is inconvenient to detect this and does not have a structure to protect the equipment. Utility Model Content

[0003] The purpose of this invention is to provide a PS pre-pressure control device based on fuzzy control, in order to solve the problem that the PS pre-pressure control device based on fuzzy control mentioned in the background art is connected to an external pipeline. At the connection point and during equipment use, as the components age, natural gas leakage may occur. Existing equipment is inconvenient to detect this leakage and lacks a protective structure.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a reinforced electrical insulation adhesive sheet to prevent dispersion, comprising an electric valve, a pressure detector installed on one side of the electric valve, connecting pipes connected to both ends of the pressure detector and the electric valve, a first sealing cover provided on the outside of the electric valve and the pressure detector, a second sealing cover provided at the bottom of the first sealing cover, and sealing plates provided on the sides of the second sealing cover and the first sealing cover. An alarm is installed on the top inner side of the first sealing cover. A connecting line is provided between the alarm and the electric valve and the pressure detector. A natural gas detector is installed at one end of the alarm. An assembly frame is fixed on the side of the electric valve away from the sealing plate. A slot is provided in the middle of the assembly frame.

[0005] Preferably, a pivot is provided between the first sealing cover and the second sealing cover, and the first sealing cover and the second sealing cover are rotatably connected. A pivot is also provided at the connection between the end of the second sealing cover away from the first sealing cover and the sealing plate, and the sealing plate and the second sealing cover are rotatably connected. A sealing strip is provided on the connection surface of the first sealing cover, the second sealing cover, and the sealing plate.

[0006] Preferably, the first sealing cover has a first sealing ring fixed on both sides near the connecting pipe, and the second sealing cover has a second sealing ring fixed on both sides near the connecting pipe.

[0007] Preferably, an assembly block is fixed to the inner side of the first sealing cover, and the cross-section of the assembly block is a "U" shaped structure. The position of the assembly block corresponds to the position of the assembly frame, and the slot of the assembly frame is inserted into the assembly block.

[0008] Preferably, two sets of positioning rods are provided at the top end of the first sealing cover near the sealing plate. The positioning rods are slidably connected to the first sealing cover. A pull rod is fixed between the ends of the positioning rods away from the sealing plate. The pull rod is slidably connected to the first sealing cover. The positioning rods are inserted into the positioning ring.

[0009] Preferably, both the first sealing ring and the second sealing ring are configured as half-circular ring structures, and the positions of the first sealing ring and the second sealing ring are corresponding. A half-circular ring sealing ring is fixed to the inner side of the first sealing ring and the second sealing ring.

[0010] Preferably, the sealing plate is provided with an observation window at the position corresponding to the alarm, the inside of the observation window is made of glass, and two sets of positioning rings are provided at the end of the observation window away from the second sealing cover.

[0011] Preferably, the inner diameter of the sealing ring is consistent with the outer diameter of the connecting pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a first sealing cover, a second sealing cover, and a sealing plate to enclose the electric valve and pressure detector, when the electric valve and pressure detector leak, the natural gas detector installed on the first sealing cover can detect it and then sound an alarm, which serves as a warning. The sealing strip can increase the sealing of the connection, allowing the natural gas detector to detect natural gas more accurately. 2. By moving the pull rod, the positioning rods at both ends are separated from the positioning ring. Then, rotate downward to open the sealing plate. The second sealing cover can also be rotated downward to open. Then, lift the first sealing cover upward to separate the assembly block inside the first sealing cover from the assembly frame of the electric valve. The first sealing cover, the second sealing cover, and the sealing plate can then be disassembled, allowing for the maintenance of the internal electric valve or pressure detector. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the side cross-sectional structure of this utility model; Figure 4 This is a schematic diagram of the back structure of the electric valve in this utility model; Figure 5 This is a schematic diagram of the unfolded structure of the first and second sealing covers in this utility model.

[0014] In the diagram: 1. Electric valve; 101. Assembly frame; 102. Slot; 2. Pressure detector; 3. Connecting pipe; 4. First sealing cover; 401. First sealing ring; 402. Second sealing cover; 403. Second sealing ring; 404. Sealing plate; 405. Observation window; 406. Positioning ring; 5. Sealing strip; 501. Sealing ring; 6. Pull rod; 601. Positioning rod; 7. Alarm; 701. Connecting wire; 702. Natural gas detector; 8. Assembly block. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Example 1, please refer to Figure 1-5This utility model provides a PS pre-pressure control device based on fuzzy control, including an electric valve 1, an assembly frame 101, a slot 102, a pressure detector 2, a connecting pipe 3, a first sealing cover 4, a first sealing ring 401, a second sealing cover 402, a second sealing ring 403, a sealing plate 404, an observation window 405, a positioning ring 406, a sealing strip 5, a sealing ring 501, a pull rod 6, a positioning rod 601, an alarm 7, a connecting wire 701, a natural gas detector 702, and an assembly block 8. A pressure detector 2 is installed on one side of the electric valve 1, and both ends of the pressure detector 2 and the electric valve 1 are connected to the connecting pipe 3. The outer surfaces of the electric valve 1 and the pressure detector 2 are... A first sealing cover 4 is provided on the side, and a rotating shaft is provided between the first sealing cover 4 and the second sealing cover 402, and the first sealing cover 4 and the second sealing cover 402 are rotatably connected. A rotating shaft is also provided at the connection between the end of the second sealing cover 402 away from the first sealing cover 4 and the sealing plate 404, and the sealing plate 404 and the second sealing cover 402 are rotatably connected. Sealing strips 5 are provided on the connection surfaces of the first sealing cover 4, the second sealing cover 402 and the sealing plate 404. The sealing strips 5 can make the connection better sealed when the first sealing cover 4 and the second sealing cover 402 are closed, so as to play a sealing role inside and make the detection of natural gas leakage inside more accurate. Specifically, such as Figure 2 and Figure 5 As shown, the first sealing cover 4 is fixed with a first sealing ring 401 on both sides near the connecting pipe 3, and the second sealing cover 402 is fixed with a second sealing ring 403 on both sides near the connecting pipe 3. The first sealing ring 401 and the second sealing ring 403 can clamp the connecting pipe 3, thereby completing the function of fixing the connecting pipe 3. Specifically, such as Figure 2 and Figure 5 As shown, the first sealing ring 401 and the second sealing ring 403 are both set as half-circular ring structures, and the positions of the first sealing ring 401 and the second sealing ring 403 are corresponding. The inner side of the first sealing ring 401 and the second sealing ring 403 is fixed with a half-circular ring structure sealing ring 501. The first sealing ring 401 and the second sealing ring 403 can fit the connecting pipe 3 better, and the sealing ring 501 can play a sealing role at the connection with the connecting pipe 3. Specifically, such as Figure 2 and Figure 5 As shown, the inner diameter of the sealing ring 501 is consistent with the outer diameter of the connecting pipe 3, which facilitates a tighter fit between the sealing ring 501 and the connecting pipe 3. Specifically, such as Figure 3 and Figure 4As shown, an assembly block 8 is fixed to the inner side of the first sealing cover 4, and the cross section of the assembly block 8 is a "7" shaped structure. The position of the assembly block 8 corresponds to the position of the assembly frame 101. The slot 102 of the assembly frame 101 is inserted and connected to the assembly block 8. The assembly block 8 can be inserted and connected to the assembly frame 101, so that the first sealing cover 4 can be hung on the electric valve 1 through the assembly block 8, which facilitates the assembly of the first sealing cover 4 and the electric valve 1. Specifically, such as Figure 1 and Figure 2 As shown, two sets of positioning rods 601 are provided at the top of the first sealing cover 4 near the sealing plate 404. The positioning rods 601 are slidably connected to the first sealing cover 4. A pull rod 6 is fixed between the ends of the positioning rods 601 away from the sealing plate 404. The pull rod 6 is slidably connected to the first sealing cover 4. The positioning rods 601 are inserted into the positioning ring 406. When the positioning rods 601 are slidably inserted into the positioning ring 406, the positioning ring 406 can be fixed, thus fixing the position of the sealing plate 404.

[0017] Example 2, specifically, as follows Figure 1 , Figure 2 and Figure 3 As shown, a second sealing cover 402 is provided at the bottom of the first sealing cover 4, and a sealing plate 404 is provided on the side of the second sealing cover 402 and the first sealing cover 4. An observation window 405 is provided at the position of the sealing plate 404 corresponding to the alarm 7. The inside of the observation window 405 is made of glass. Two sets of positioning rings 406 are provided at the end of the observation window 405 away from the second sealing cover 402. The observation window 405 can be used to control and observe the alarm 7. Specifically, such as Figure 2 and Figure 3 As shown, an alarm 7 is installed on the top inner side of the first sealing cover 4. A connecting line 701 is provided between the alarm 7, the electric valve 1, and the pressure detector 2. A natural gas detector 702 is installed at one end of the alarm 7. An assembly frame 101 is fixed on the side of the electric valve 1 away from the sealing plate 404. A slot 102 is provided in the middle of the assembly frame 101.

[0018] In this embodiment, the electric valve 1 and pressure detector 2 are used as follows: a first sealing cover 4, a second sealing cover 402, and a sealing plate 404 are provided on the outside of the electric valve 1 and pressure detector 2. These components enclose the electric valve 1 and pressure detector 2. When leakage occurs in the electric valve 1 and pressure detector 2, it can be detected by the natural gas detector 702 installed on the first sealing cover 4, which then triggers an alarm 7, serving as a warning. The first sealing cover 4, the second sealing cover 402, and the sealing plate 404 can be rotated apart. A sealing strip 5 is provided at the connection between 402 and the sealing plate 404. After the first sealing cover 4, the second sealing cover 402 and the sealing plate 404 are combined, the sealing strip 5 can increase the sealing of the connection. In this way, the natural gas detector 702 can more accurately detect the natural gas inside the first sealing cover 4, the second sealing cover 402 and the sealing plate 404. A sealing ring 501 is provided on the inner side of the first sealing ring 401 and the second sealing ring 403 of the fixed connecting pipe 3. The sealing ring 501 can make the connection between the first sealing ring 401 and the second sealing ring 403 and the connecting pipe 3 tighter, so as to achieve a better sealing effect. When it is necessary to inspect the internal electric valve 1, the pull rod 6 can be moved, causing the positioning rods 601 at both ends to move. When the positioning rods 601 separate from the positioning ring 406, the sealing plate 404 can be rotated downwards to open, and the second sealing cover 402 can also be rotated downwards to open. Then, the first sealing cover 4 can be lifted upwards, allowing the assembly block 8 inside the first sealing cover 4 to separate from the assembly frame 101 of the electric valve 1. This allows the first sealing cover 4, the second sealing cover 402, and the sealing plate 404 to be disassembled, enabling inspection of the internal electric valve 1 or pressure detector 2. This is a modular... The fuzzy control PS pre-compression control device is now in use. It should be noted that this utility model is a PS pre-compression control device based on fuzzy control. All components are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection in the order of operation between each electrical component. The detailed connection method is a well-known technology in this field.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A PS pre-pressure control device based on fuzzy control, comprising an electric valve (1), characterized in that: A pressure detector (2) is installed on one side of the electric valve (1). Both ends of the pressure detector (2) and the electric valve (1) are connected to connecting pipes (3). A first sealing cover (4) is provided on the outside of the electric valve (1) and the pressure detector (2). A second sealing cover (402) is provided at the bottom of the first sealing cover (4). A sealing plate (404) is provided on the side of the second sealing cover (402) and the first sealing cover (4). An alarm (7) is installed on the top inner side of the first sealing cover (4). A connecting line (701) is provided between the alarm (7) and the electric valve (1) and the pressure detector (2). A natural gas detector (702) is installed at one end of the alarm (7). An assembly frame (101) is fixed on the side of the electric valve (1) away from the sealing plate (404). A slot (102) is provided in the middle of the assembly frame (101).

2. The PS pre-compression control device based on fuzzy control according to claim 1, characterized in that: A pivot is provided between the first sealing cover (4) and the second sealing cover (402), and the first sealing cover (4) and the second sealing cover (402) are rotatably connected. A pivot is also provided at the connection between the end of the second sealing cover (402) away from the first sealing cover (4) and the sealing plate (404), and the sealing plate (404) and the second sealing cover (402) are rotatably connected. A sealing strip (5) is provided on the connection surface of the first sealing cover (4), the second sealing cover (402) and the sealing plate (404).

3. The PS preload control device based on fuzzy control according to claim 1, characterized in that: The first sealing cover (4) has a first sealing ring (401) fixed on both sides near the connecting pipe (3), and the second sealing cover (402) has a second sealing ring (403) fixed on both sides near the connecting pipe (3).

4. The PS preload control device based on fuzzy control according to claim 1, characterized in that: An assembly block (8) is fixed on the inner side of the first sealing cover (4), and the cross section of the assembly block (8) is a "7" shaped structure. The position of the assembly block (8) corresponds to the position of the assembly frame (101), and the slot (102) of the assembly frame (101) is inserted and connected to the assembly block (8).

5. The PS preload control device based on fuzzy control according to claim 1, characterized in that: Two sets of positioning rods (601) are provided at the top end of the first sealing cover (4) near the sealing plate (404). The positioning rods (601) are slidably connected to the first sealing cover (4). A pull rod (6) is fixed between the end of the positioning rod (601) away from the sealing plate (404). The pull rod (6) is slidably connected to the first sealing cover (4). The positioning rod (601) is inserted into the positioning ring (406).

6. The PS pre-compression control device based on fuzzy control according to claim 3, characterized in that: The first sealing ring (401) and the second sealing ring (403) are both set as half-circular ring structures, and the positions of the first sealing ring (401) and the second sealing ring (403) are corresponding. The inner sides of the first sealing ring (401) and the second sealing ring (403) are fixed with sealing rings (501) of half-circular ring structure.

7. The PS preload control device based on fuzzy control according to claim 1, characterized in that: The sealing plate (404) is provided with an observation window (405) at the position corresponding to the alarm (7). The inside of the observation window (405) is made of glass. Two sets of positioning rings (406) are provided at the end of the observation window (405) away from the second sealing cover (402).

8. A PS preload control device based on fuzzy control according to claim 6, characterized in that: The inner diameter of the sealing ring (501) is consistent with the outer diameter of the connecting pipe (3).