CN118640318A - A pipeline gas self-closing valve and a monitoring and control method having the self-closing valve - Google Patents

Abstract

The invention discloses a pipeline gas self-closing valve and a monitoring and control method, comprising a valve body, a pull rod which can move up and down is arranged in the valve body, a prompt button is arranged on the upper side of the valve body, and the prompt button is connected to the pull rod; when the pull rod moves up and down, it can drive the prompt button to move up and down; also comprising a detection device, the detection device comprises a sensor component and a detection circuit; the sensor component comprises a magnet and a magnetic field sensor, the magnet is arranged in the valve body and below the prompt button, the magnetic field sensor is arranged on the prompt button, and the magnetic field sensor is electrically connected to the detection circuit; the pipeline gas self-closing valve and the control method can digitize the state information of overcurrent, underpressure and overpressure of the pipeline gas, and can upload it to the cloud to realize remote perception of the working state of the pipeline gas self-closing valve, so that the gas company can grasp the gas operation state in real time, and can promptly notify the user that the pipeline gas abnormality needs to be inspected and maintained, thereby improving the safety of gas use and improving the service quality of the gas company.

Description

A pipeline gas self-closing valve and a monitoring and control method having the self-closing valve

Technical Field

The present invention relates to the technical field of pipeline gas valves, and more specifically to a pipeline gas self-closing valve and a monitoring and control method having the self-closing valve.

Background Art

The pipeline gas self-closing valve is generally installed upstream of the indoor stove to cut off the gas when the pressure and flow of the gas system are abnormal, and the gas supply will be restored manually after the cause of the fault is found and eliminated. The self-closing valve has three protection modes: overcurrent, overpressure and underpressure. Its overcurrent automatic closing can effectively solve the rapid gas leakage accidents caused by the detachment and rupture of the indoor rubber hose. The overpressure automatic closing of the self-closing valve can prevent the damage of gas equipment or gas leakage accidents caused by the sudden increase of indoor pipeline pressure. The underpressure automatic closing of the self-closing valve can prevent the emptying of the user's branch pipe caused by the reduction of gas pressure or gas outage maintenance.

The pipeline gas self-closing valve itself can automatically close without electricity or other external power when the gas pipeline supply pressure is overcurrent, underpressure, or overpressure, and must be manually restored to reopen. The actual working state of the pipeline gas self-closing valve can only be known through manual inspection. Therefore, the special working mode of the pipeline gas self-closing valve makes it very difficult to digitize the status information of the pipeline gas overcurrent, underpressure, and overpressure and upload it to the cloud to realize remote perception of the working state of the pipeline gas self-closing valve. Therefore, it is impossible for the gas company to grasp the gas operation status in real time and notify users in time that the pipeline gas abnormality requires inspection and maintenance, which seriously hinders the improvement of gas safety and service quality.

Summary of the invention

The technical problem to be solved by the present invention is to provide a pipeline gas self-closing valve, which can automatically sense the working status of the self-closing valve. This detection information can be used to build a service platform, so that the gas company can grasp the gas operation status in real time and can promptly notify the user of pipeline gas abnormalities that require inspection and maintenance, thereby improving the safety of gas use and improving the service quality of the gas company.

The technical solution of the present invention is to provide a pipeline gas self-closing valve with the following structure, including a valve body, a pull rod that can move up and down is provided in the valve body, a prompt button is provided on the upper side of the valve body, and the prompt button is connected to the pull rod; when the pull rod moves up and down, it can drive the prompt button to move up and down; it also includes a detection device, and the detection device includes a sensor component and a detection circuit; the sensor component includes a magnet and a magnetic field sensor, the magnet is arranged in the valve body and below the prompt button, the magnetic field sensor is arranged on the prompt button, and the magnetic field sensor is electrically connected to the detection circuit; when the pull rod moves up and down, the distance between the magnetic field sensor and the magnet will change, and the signal detected by the magnetic field sensor will also change accordingly, and the detection circuit can judge the state of the self-closing valve according to the received signal.

After adopting the above structure, the pipeline gas self-closing valve of the present invention has the following advantages compared with the prior art:

Since the pipeline gas self-closing valve of the present invention includes a detection device, when the pull rod moves up and down, the distance between the magnetic field sensor and the magnet will change, and the signal detected by the magnetic field sensor will also change accordingly. The detection circuit can determine the state of the self-closing valve according to the received signal, so that the state information such as overcurrent, underpressure and overpressure of the pipeline gas can be digitized, and can be uploaded to the cloud to realize remote sensing of the working state of the pipeline gas self-closing valve, so that the gas company can grasp the gas operation state in real time, and can promptly notify the user that the pipeline gas abnormality requires inspection and maintenance, thereby improving the safety of gas use and improving the service quality of the gas company.

As an improvement, the magnet is fixedly installed in the convex neck of the valve body. After adopting this structure, the magnet is hidden in the convex neck of the valve body, and the installation is more reliable.

As an improvement, the detection device includes a control box, which is fixedly mounted on the valve body and located on one side of the prompt button; the detection circuit is installed in the control box. After adopting this structure, the structure is simple and easy to assemble.

As an improvement, the prompt button is provided with a fixing frame, which is located between the prompt button and the control box; the magnetic field sensor is fixedly connected to the fixing frame. After adopting this structure, the magnetic field sensor is installed on the fixing frame, the installation structure is simple, and the fixing frame is located between the prompt button and the control box, which is also convenient for electrical connection.

As an improvement, a through hole is provided on the side wall of the prompt button, and the magnetic field sensor passes through the through hole and extends into the inner cavity of the prompt button. With this structure, the structure is compact and the installation of the magnetic field sensor is more convenient.

As an improvement, the fixing frame includes a fixing plate and a baffle, one side of the fixing plate is fixedly connected to one end of the baffle; the fixing plate is fixedly connected to the prompt button, and the baffle blocks the side of the prompt button.

As an improvement, a fixing column is provided on the lower side of the fixing plate, a matching hole matching the fixing column is provided on the top plate of the prompt button, the fixing column extends into the inner cavity of the prompt button through the matching hole, and the magnetic field sensor is fixedly connected to the fixing column; a wire groove or a wire hole is provided on the baffle. With this structure, the structural design is more reasonable, and the guide of the magnetic field sensor can be connected to the control box through the wire groove or the wire hole.

As an improvement, the shape of the baffle matches the shape of the side wall of the prompt button, and a notch is provided on the side wall of the control box, the shape of which matches the shape of the baffle, and the baffle is slidably fitted in the notch. With this structure, the structural design is more reasonable, and the notch can limit the baffle, effectively limiting the baffle.

As an improvement, the detection circuit includes a control unit and a communication module; the magnetic field sensor and the communication module are both electrically connected to the control unit. With this structure, the detection circuit can realize data transmission through the communication module.

Another technical problem to be solved by the present invention is to provide a monitoring and control method for a pipeline gas self-closing valve. Through the detection and control method, the status information of the pipeline gas such as overcurrent, underpressure and overpressure can be digitized, and can be uploaded to the cloud to realize remote perception of the working status of the pipeline gas self-closing valve, so that the gas company can grasp the gas operation status in real time and can promptly notify the user that the pipeline gas abnormality requires inspection and maintenance, thereby improving the safety of gas use and improving the service quality of the gas company.

The technical solution of the present invention is to provide a monitoring and control method for a pipeline gas self-closing valve having the following steps, including the following steps: S1, configuring parameters of a magnetic field sensor through a control unit of a detection circuit; S2, when the pipeline gas self-closing valve is in an overpressure, underpressure or overcurrent condition, the prompt button of the pipeline gas self-closing valve drives the magnetic field sensor to move together, the distance between the magnetic field sensor and the magnet changes, the magnetic field sensor generates a corresponding output signal and transmits the signal to the control unit of the detection circuit; S3, the control unit processes and analyzes the received signal and generates an alarm signal of an abnormal state; S4, the control unit uploads the alarm signal to the cloud through a communication module.

After adopting the above structure, the monitoring and control method of the pipeline gas self-closing valve of the present invention has the following advantages compared with the prior art:

Due to the monitoring and control method of the pipeline gas self-closing valve of the present invention, when the pipeline gas self-closing valve is in an overpressure, underpressure or overcurrent condition, the prompt button of the pipeline gas self-closing valve drives the magnetic field sensor to move together, and the distance between the magnetic field sensor and the magnet changes. The magnetic field sensor generates a corresponding output signal and transmits the signal to the control unit of the detection circuit, and then uploads it to the cloud, so that the state information such as overcurrent, underpressure and overpressure of the pipeline gas can be digitized and uploaded to the cloud to realize remote perception of the working state of the pipeline gas self-closing valve, so that the gas company can grasp the gas operation state in real time, and can promptly notify the user that the pipeline gas abnormality requires inspection and maintenance, thereby improving the safety of gas use and improving the service quality of the gas company.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a pipeline gas self-closing valve according to the present invention.

FIG. 2 is a schematic diagram of a partial explosion structure of the pipeline gas self-closing valve of the present invention.

FIG. 3 is a schematic structural diagram of the valve cover of the pipeline gas self-closing valve of the present invention.

FIG. 4 is a schematic structural diagram of a prompt button of a pipeline gas self-closing valve according to the present invention.

FIG. 5 is a schematic structural diagram of a fixing frame of a pipeline gas self-closing valve according to the present invention.

As shown in the figure: 1. valve body, 101. valve body, 102. valve cover, 103. protruding neck, 2. detection device, 201. control box, 202. detection circuit, 203. notch, 204. battery, 3. prompt button, 301. top plate, 302. matching hole, 303. through hole, 4. magnet, 5. magnetic field sensor, 6. fixing frame, 601. fixing plate, 602. baffle, 603. fixing column, 604. wire groove.

DETAILED DESCRIPTION

In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

It should also be understood that the terms “comprises,” “including,” “has,” “includes,” and “containing,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and/or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and/or combinations thereof.

As shown in Figures 1 to 5, the present application discloses a pipeline gas self-closing valve, including a valve body 1 and a detection device 2. A pull rod that can move up and down is provided in the valve body 1, and a prompt button 3 is provided on the upper side of the valve body 1. The prompt button 3 is connected to the pull rod, and the pull rod can drive the prompt button 3 to move up and down when it moves up and down. The structure and assembly of the valve body 1, the pull rod and the prompt button 3 are all prior art, and will not be repeated here.

The detection device 2 includes a sensor component and a detection circuit 202, and the sensor component includes a magnet 4 and a magnetic field sensor 5. The valve body 1 includes a valve body 101 and a valve cover 102. The upper end of the valve body 101 is provided with an opening, and the valve cover 102 is connected to the opening of the valve body 101. The valve cover 102 is provided with a convex neck 103, and the end of the pull rod passes through the through hole 303 in the middle of the convex neck 103 and extends out of the convex neck 103, and the end of the pull rod is fixedly connected to the prompt button 3. The magnet 4 is sleeved outside the pull rod and the magnet 4 is fixedly installed in the convex neck 103, and the magnet 4 is located below the prompt button 3.

The magnetic field sensor 5 is arranged on the prompt button 3. The detection device 2 includes a control box 201, which is fixedly mounted on the valve body 1 and located on one side of the prompt button 3. The detection circuit 202 is installed in the control box 201, and the magnetic field sensor 5 is electrically connected to the detection circuit 202. A battery 204 is arranged in the control box, and the battery 204 provides power for the detection circuit 202.

The prompt button 3 is provided with a fixing frame 6, and the fixing frame 6 is located between the prompt button 3 and the control box 201. The fixing frame 6 includes a fixing plate 601 and a baffle 602, and one side of the fixing plate 601 is fixedly connected to one end of the baffle 602. A fixing column 603 is provided on the lower side of the fixing plate 601, and a matching hole 302 matching the fixing column 603 is provided on the top plate 301 of the prompt button 3. The fixing column 603 extends into the inner cavity of the prompt button 3 through the matching hole 302. The fixing plate 601 is fixedly connected to the top plate 301 of the prompt button 3 by screws, and the baffle 602 blocks the side of the prompt button 3. A through hole 303 is provided on the side wall of the prompt button 3, and one end of the magnetic field sensor 5 extends into the inner cavity of the prompt button 3 through the through hole 303, and the other end of the magnetic field sensor 5 extends into the inner side of the baffle 602. The baffle 602 is provided with a wire slot 604 or a wire hole, and the wires on the magnetic field sensor 5 pass through the wire slot 604 or the wire hole to be electrically connected to the detection circuit 202 in the control box 201.

The shape of the baffle 602 matches the shape of the side wall of the prompt button 3, and the side wall of the control box 201 is provided with a notch 203 whose shape matches the shape of the baffle 602, and the baffle 602 is slidably fitted in the notch 203. In this specific embodiment, the prompt button 3 is circular, the baffle 602 is arc-shaped, and the notch 203 is also arc-shaped.

The present application discloses a pipeline gas self-closing valve, when the pull rod moves up and down, it will drive the prompt button 3 to move up and down, thereby driving the magnetic field sensor 5 to move up and down. At this time, the distance between the magnetic field sensor 5 and the magnet 4 will change, and the signal detected by the magnetic field sensor 5 will also change accordingly. The detection circuit 202 can judge the state of the self-closing valve according to the received signal.

The present application also discloses a monitoring and control method for a pipeline gas self-closing valve, wherein the pipeline gas self-closing valve is a pipeline gas self-closing valve of the above structure, and the monitoring and control method comprises the following steps:

S1, configuring the parameters of the magnetic field sensor 5 by the control unit of the detection circuit 202, specifically including the following steps:

S101. The control unit is set to a parameter configuration mode.

S102, when the magnetic field sensor 5 detects a change in the magnetic field, it will wake up the control unit in deep sleep and preset the corresponding parameters of the pipeline gas self-closing valve in the case of overpressure, underpressure or overcurrent.

S103 , when the magnetic field sensor 5 detects that the magnetic field is in a stable state, the detection circuit 202 enters a deep sleep mode.

S2. When the pipeline gas self-closing valve is under overpressure, underpressure or overcurrent, the prompt button 3 of the pipeline gas self-closing valve drives the magnetic field sensor 5 to move together, and the distance between the magnetic field sensor 5 and the magnet 4 changes. The magnetic field sensor 5 generates an output signal, which is used to wake up the control unit. At this time, the control unit reads the signal and obtains the direction of movement of the pipeline gas self-closing valve;

S3, the control unit generates an abnormal state alarm signal after processing and analyzing the received signal, specifically comprising the steps of:

S301. Compare the movement direction of the pipeline gas self-closing valve obtained in step S2 with the previous state parameters of the pipeline gas self-closing valve stored in the detection circuit 202, and then determine whether the state of the pipeline gas self-closing valve is in an overcurrent state, an overpressure state or an underpressure state; and realize the perception of the abnormal state of the pipeline gas self-closing valve.

S302, the control unit saves the state parameters of the pipeline gas self-closing valve and generates an abnormal state alarm signal.

S4. The control unit uploads the alarm signal to the cloud through the communication module.

S5. After the user receives the alarm signal of the pipeline gas self-closing valve, the user or the gas company conducts an investigation and processing. After the fault is eliminated, the pipeline gas self-closing valve is restarted to enter a normal operating state. The control unit saves the state parameters of the pipeline gas self-closing valve at this time, and the detection circuit 202 re-enters a deep sleep state.

The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims (10)

1. A pipeline gas self-closing valve, comprising a valve body (1), wherein a pull rod capable of moving up and down is arranged in the valve body (1), and a prompt button (3) is arranged on the upper side of the valve body (1), and the prompt button (3) is connected to the pull rod; when the pull rod moves up and down, the prompt button (3) can be driven to move up and down; the valve body (1) is characterized in that it also comprises a detection device (2), wherein the detection device (2) comprises a sensor component and a detection circuit (202); the sensor component comprises a magnet (4) and a magnetic field sensor (5), wherein the magnet (4) is arranged in the valve body (1) and below the prompt button (3), the magnetic field sensor (5) is arranged on the prompt button (3), and the magnetic field sensor (5) is electrically connected to the detection circuit (202); when the pull rod moves up and down, the distance between the magnetic field sensor (5) and the magnet (4) will change, and the signal detected by the magnetic field sensor (5) will also change accordingly, and the detection circuit (202) can judge the state of the self-closing valve according to the received signal. 2. The pipeline gas self-closing valve according to claim 1, characterized in that: the magnet (4) is fixedly installed in the convex neck (103) of the valve body (1). 3. The pipeline gas self-closing valve according to claim 1, characterized in that: the detection device (2) comprises a control box (201), the control box (201) is fixedly mounted on the valve body (1) and located on one side of the prompt button (3); the detection circuit (202) is installed in the control box (201). 4. The pipeline gas self-closing valve according to claim 3 is characterized in that: a fixing frame (6) is provided on the prompt button (3), and the fixing frame (6) is located between the prompt button (3) and the control box (201); and the magnetic field sensor (5) is fixedly connected to the fixing frame (6). 5. The pipeline gas self-closing valve according to claim 4, characterized in that: a through hole (303) is provided on the side wall of the prompt button (3), and the magnetic field sensor (5) passes through the through hole (303) and extends into the inner cavity of the prompt button (3). 6. The pipeline gas self-closing valve according to claim 5, characterized in that: the fixing frame (6) comprises a fixing plate (601) and a baffle (602), one side of the fixing plate (601) is fixedly connected to one end of the baffle (602); the fixing plate (601) is fixedly connected to the prompt button (3), and the baffle (602) blocks the side of the prompt button (3). 7. The pipeline gas self-closing valve according to claim 5 is characterized in that: a fixing column (603) is provided on the lower side of the fixing plate (601), a matching hole (302) matching with the fixing column (603) is provided on the top plate (301) of the prompt button (3), the fixing column (603) passes through the matching hole (302) and extends into the inner cavity of the prompt button (3), and the magnetic field sensor (5) is fixedly connected to the fixing column (603); and a wire groove (604) or a wire hole is provided on the baffle (602). 8. The pipeline gas self-closing valve according to claim 6, characterized in that: the shape of the baffle (602) matches the shape of the side wall of the prompt button (3), and the side wall of the control box (201) is provided with a notch (203) whose shape matches the shape of the baffle (602), and the baffle (602) is slidably fitted in the notch (203). 9. The pipeline gas self-closing valve according to claim 1, characterized in that: the detection circuit (202) includes a control unit and a communication module; the magnetic field sensor (5) and the communication module are both electrically connected to the control unit. 10. A monitoring and control method for a pipeline gas self-closing valve according to any one of claims 1 to 9, characterized in that it comprises the following steps: S1, configuring parameters of the magnetic field sensor (5) through a control unit of the detection circuit (202); S2. When the pipeline gas self-closing valve is in an overpressure, underpressure or overcurrent condition, the prompt button (3) of the pipeline gas self-closing valve drives the magnetic field sensor (5) to move together, the distance between the magnetic field sensor (5) and the magnet (4) changes, and the magnetic field sensor (5) generates a corresponding output signal and transmits the signal to the control unit of the detection circuit (202); S3, the control unit processes and analyzes the received signal and generates an alarm signal of abnormal state; S4. The control unit uploads the alarm signal to the cloud through the communication module.