Methanol pressure regulating device

Abstract

The utility model proposes a kind of methanol pressure regulating device, it is related to chemical fluid control field, including conveying pipe, the top of conveying pipe is provided with bearing plate, the upper surface of bearing plate is fixedly connected with control box and regulating valve, the inside installation of control box has pressure signal processor, the outer surface of regulating valve is provided with pressure sensor, one end of regulating valve is provided with connecting pipe, the outer surface of conveying pipe is installed with leak detector.The utility model real-time monitoring methanol pressure by pressure sensor, signal is handled after passing through pressure signal processor containing instrument amplifier, low pass filter, controller drives regulating valve automatic adjustment opening degree, forms the closed loop control of detection, processing, adjustment, compared with traditional manual adjustment, pressure control precision is significantly improved, can control pressure fluctuation in very small range, ensure that methanol conveying is stable as raw material supply is uniform in chemical synthesis, realize accurate dynamic adjustment, guarantee pressure stability.

Description

Technical Field

[0001] This utility model relates to the field of chemical fluid control, specifically a methanol pressure regulating device. Background Technology

[0002] Methanol, as a widely used chemical raw material and clean energy source, requires pressure control in its liquid state for production safety and process efficiency. In equipment such as methanol storage tanks, pipelines, and reactors, excessive pressure may lead to equipment rupture and methanol leakage (methanol vapor is toxic and flammable), while insufficient pressure may affect transportation efficiency or reaction rate. However, existing methanol pressure regulating devices have many shortcomings. Traditional methods rely on manual valve regulation, resulting in large pressure control errors and an inability to dynamically adjust based on real-time pressure. This leads to inconsistent methanol delivery speeds, affecting subsequent production processes, such as the stability of raw material supply for synthesis reactions. Utility Model Content

[0003] The purpose of this invention is to provide a methanol pressure regulating device to solve the problems mentioned in the background section and overcome its technical defects.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a methanol pressure regulating device, including a conveying pipe, a support plate arranged above the conveying pipe, a control box and a regulating valve fixedly connected to the upper surface of the support plate, a pressure signal processor installed inside the control box, a pressure sensor arranged on the outer surface of the regulating valve, a connecting pipe arranged at one end of the regulating valve, a leak detector installed on the outer surface of the conveying pipe, the outer surface of the conveying pipe being connected to the regulating valve through a conductive pipe, and a connector installed on the outer surface of the support plate.

[0005] Preferably, the leak detector includes an electrochemical methanol sensor fixedly connected to the outer surface of the conductive pipe and a shut-off valve fixedly installed on the outer surface of the delivery pipe. An audible and visual alarm is installed on the outer surface of the support plate, and the audible and visual alarm is electrically connected to the shut-off valve through a wire.

[0006] Preferably, the outer surface of the bearing plate has a circular opening that matches the conduit.

[0007] Preferably, the components of the regulating valve and the guide pipe that come into contact with methanol are made of 316L stainless steel or polytetrafluoroethylene.

[0008] Preferably, a controller is fixedly mounted on the outer surface of the control box.

[0009] Preferably, the pressure signal processor includes a low-pass filter fixedly connected to the inner wall of the control box, and an instrumentation amplifier is fixedly connected to the inner wall of the control box.

[0010] Preferably, the connector includes a spout plate fixedly connected to the outer surface of the bearing plate, the spout plate having fastening screws inside, and multiple spout blocks fixedly connected to the outer surface of the conveying pipe.

[0011] Preferably, the inner cavities of the regulating valve, connecting pipe, and conductive pipe are all coated with a nano-ceramic coating.

[0012] Compared with the prior art, the beneficial effects of this utility model include:

[0013] Methanol pressure is monitored in real time by a pressure sensor. After the signal is processed by a pressure signal processor including an instrumentation amplifier and a low-pass filter, the controller drives the regulating valve to automatically adjust the opening, forming a closed-loop control of detection, processing, and regulation. Compared with traditional manual adjustment, the pressure control accuracy is significantly improved, and pressure fluctuations can be controlled within a very small range, ensuring stable methanol delivery, such as uniform raw material supply in chemical synthesis, solving the problem of fluctuating pressure, achieving precise dynamic regulation, and ensuring pressure stability. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the control box of this utility model;

[0019] The following are the labels in the diagram: 1. Delivery pipe; 2. Connector; 201. Block with opening; 202. Plate with opening; 203. Fastening screw; 3. Leak detector; 301. Electrochemical methanol sensor; 302. Shut-off valve; 303. Audible and visual alarm; 4. Conductor pipe; 5. Support plate; 6. Control box; 7. Regulating valve; 8. Pressure sensor; 9. Connecting pipe; 10. Controller; 11. Pressure signal processor; 111. Instrumentation amplifier; 112. Low-pass filter. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] According to one embodiment of the present invention, in conjunction with the appended drawings Figures 1-4 As shown.

[0022] A methanol pressure regulating device includes a delivery pipe 1, a support plate 5 above the delivery pipe 1, a control box 6 and a regulating valve 7 fixedly connected to the upper surface of the support plate 5, a pressure signal processor 11 installed inside the control box 6, a pressure sensor 8 installed on the outer surface of the regulating valve 7, a connecting pipe 9 installed at one end of the regulating valve 7, a leak detector 3 installed on the outer surface of the delivery pipe 1, and the outer surface of the delivery pipe 1 connected to the regulating valve 7 through a connecting pipe 4. A connector 2 is installed on the outer surface of the support plate 5. The pressure sensor 8 monitors in real time, the regulating valve 7 adjusts dynamically, and the control box 6 handles centralized processing, solving the problems of low accuracy and slow response of traditional manual adjustment, and providing a foundation for stable methanol pressure.

[0023] In this embodiment, the leak detector 3 includes an electrochemical methanol sensor 301 fixedly connected to the outer surface of the conductive pipe 4 and a shut-off valve 302 fixedly installed on the outer surface of the delivery pipe 1. An audible and visual alarm 303 is installed on the outer surface of the support plate 5. The audible and visual alarm 303 is electrically connected to the shut-off valve 302 via a wire. The electrochemical methanol sensor 301 of the leak detector 3 can quickly identify methanol leaks, triggering the audible and visual alarm 303. Simultaneously, the shut-off valve 302 closes the delivery pipe 1, preventing the leak from expanding, forming an emergency chain of detection, alarm, and shut-off. This solves the problem of difficult detection and control of leaks in traditional devices, reducing safety risks. The surface has a round opening that matches the guide pipe 4. The round opening of the support plate 5 provides an installation channel for the guide pipe 4, ensuring the sealing of the connection between the guide pipe 4 and the regulating valve 7 and the delivery pipe 1. The parts of the regulating valve 7 and the guide pipe 4 that come into contact with methanol are all made of 316L stainless steel or polytetrafluoroethylene. 316L stainless steel and polytetrafluoroethylene are resistant to methanol corrosion, solving the problem of easy corrosion and leakage of the parts that come into contact with methanol in traditional devices, and extending the service life of the device. The inner cavity of the regulating valve 7, the connecting pipe 9 and the guide pipe 4 are all sprayed with a nano-ceramic coating. The nano-ceramic coating on the inner cavity enhances wear resistance, while improving surface smoothness, reducing methanol flow resistance and reducing energy consumption.

[0024] In this embodiment, a controller 10 is fixedly installed on the outer surface of the control box 6. The controller 10 realizes automatic adjustment without manual intervention, and the response speed is improved. The pressure signal processor 11 includes a low-pass filter 112 fixedly connected to the inner wall of the control box 6. An instrument amplifier 111 is fixedly connected to the inner wall of the control box 6. The instrument amplifier 111 of the pressure signal processor 11 amplifies weak pressure signals, and the low-pass filter 112 filters out interference such as noise signals generated by pipeline vibration, ensuring accurate pressure detection, avoiding false signals that lead to erroneous adjustment, ensuring the reliability of the pressure signal and ensuring detection sensitivity. The connector 2 includes a port plate 202 fixedly connected to the outer surface of the support plate 5. The port plate 202 is provided with fastening screws 203 inside. Multiple port blocks 201 are fixedly connected to the outer surface of the delivery pipe 1. The port plate 202 of the connector 2 cooperates with the fastening screws 203 to firmly fix the support plate 5 to the port blocks 201 of the delivery pipe 1, avoiding device displacement caused by vibration such as pump body vibration, ensuring the relative position stability of components such as the regulating valve 7 and the sensor, and indirectly ensuring adjustment accuracy.

[0025] Working principle: When methanol feedstock needs to be transported stably, the connecting pipe 9 and the conductive pipe 4 are sealed together using a tool. Then, during use, the pressure sensor 8 detects that the pressure in the conveying pipe 1 is slightly higher than the set value. At this time, the signal is processed by the pressure signal processor 11, and the low-pass filter 112 of the internal pressure signal processor 11 can filter out interference signals to ensure accurate pressure detection. The signal can be sent to the controller 10, which drives the regulating valve 7 to close or open. The pressure recovers to the set value in a short time, the feedstock supply is stable, and there is no decrease in reaction efficiency due to pressure fluctuations.

[0026] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A methanol pressure regulating device, characterized in that, The system includes a delivery pipe (1), a support plate (5) is provided above the delivery pipe (1), a control box (6) and a regulating valve (7) are fixedly connected to the upper surface of the support plate (5), a pressure signal processor (11) is installed inside the control box (6), a pressure sensor (8) is provided on the outer surface of the regulating valve (7), a connecting pipe (9) is provided at one end of the regulating valve (7), a leak detector (3) is installed on the outer surface of the delivery pipe (1), the outer surface of the delivery pipe (1) is connected to the regulating valve (7) through a connecting pipe (4), and a connector (2) is installed on the outer surface of the support plate (5).

2. The methanol pressure regulating device according to claim 1, characterized in that, The leak detector (3) includes an electrochemical methanol sensor (301) fixedly connected to the outer surface of the conductive pipe (4) and a shut-off valve (302) fixedly installed on the outer surface of the delivery pipe (1). An audible and visual alarm (303) is installed on the outer surface of the support plate (5). The audible and visual alarm (303) is electrically connected to the shut-off valve (302) through a wire.

3. The methanol pressure regulating device according to claim 2, characterized in that, The outer surface of the bearing plate (5) is provided with a circular opening that is compatible with the guide tube (4).

4. The methanol pressure regulating device according to claim 3, characterized in that, The regulating valve (7) and the components of the guide pipe (4) that come into contact with methanol are all made of 316L stainless steel or polytetrafluoroethylene.

5. A methanol pressure regulating device according to claim 4, characterized in that, The controller (10) is fixedly installed on the outer surface of the control box (6).

6. The methanol pressure regulating device according to claim 1, characterized in that, The pressure signal processor (11) includes a low-pass filter (112) fixedly connected to the inner wall of the control box (6), and an instrumentation amplifier (111) is fixedly connected to the inner wall of the control box (6).

7. The methanol pressure regulating device according to claim 1, characterized in that, The connector (2) includes a spout plate (202) fixedly connected to the outer surface of the bearing plate (5), and a fastening screw (203) is provided inside the spout plate (202). Multiple spout blocks (201) are fixedly connected to the outer surface of the conveying pipe (1).

8. A methanol pressure regulating device according to claim 7, characterized in that, The inner cavities of the regulating valve (7), connecting pipe (9) and conductive pipe (4) are all coated with nano-ceramic coating.

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