Automatic shutdown device for detecting gas leakage through Internet of Things
By installing flowmeter shells and infrared sensors at both ends of the gas pipeline, using IoT technology to detect gas leakage and automatically control the solenoid valve to close leakage, solving the problem of difficulty in monitoring gas leakage in long-distance pipelines, and achieving automatic detection and closing of gas leakage The suspension ensures the safety of gas supply.
Patent Information
- Application Number
- CN202420367814.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-27
AI Technical Summary
During the transportation of gas pipelines, long-distance pipelines lead to difficulty in monitoring gas leakage, and it is difficult for the existing technology to effectively detect and automatically shut down leakage.
Design an automatic shutdown device for detecting gas leakage in the Internet of Things. By installing a flowmeter shell at both ends of the pipeline, rotating rods and hollow hemispheres rotate when the gas flows by, infrared transmitters and receivers detect rotation, and control with own power supply The unit acquires the speed data and sends it to the detection computer through the Internet of Things module to compare the data differences and automatically controls the solenoid valve to close the leakage.
Automatic detection and shutdown of gas leakage has been achieved, the monitoring efficiency of pipeline gas leakage has been improved, and the safe supply of gas has been ensured.
Smart Images
Figure CN222186655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automatic shut-off devices for gas leakage, in particular to an automatic shut-off device for detecting gas leakage through the Internet of Things. Background Art
[0002] Coal gas is a gas containing combustible components that is processed from coal and is an important energy source in modern industry.
[0003] In the prior art, there are generally two ways to transport coal gas, namely pipeline transportation and bottled transportation. The pipeline transportation method can meet the long-term gas consumption conditions of gas-consuming equipment and is suitable for industrial production processes with large-scale gas demand.
[0004] However, when gas is transported through pipelines, the pipelines used to transport gas are usually very long, which makes it very difficult to monitor the leakage of the gas pipelines along the way. Utility Model Content
[0005] The purpose of the utility model is to provide an Internet of Things gas leakage detection and automatic shut-off device to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an Internet of Things gas leakage detection automatic shut-off device, comprising: a flow meter housing, a through hole is provided at the top of the flow meter housing, a rotating rod is rotatably arranged in the through hole, a hollow hemisphere is fixed at the bottom end of the rod body of the rotating rod, a light hole is provided at the top of the rod body of the rotating rod, an infrared transmitter and an infrared receiver are fixed at the top of the flow meter housing, and a control unit with its own power supply is arranged above the flow meter housing.
[0007] Preferably, two groups of flow meter housings are provided, and a pipeline is connected between the two groups of flow meter housings, wherein the other end of one group of flow meter housings is connected to a solenoid valve, and the other end of the other group of flow meter housings is connected to a gas-using device.
[0008] Preferably, a bracket is fixed to the top of the flow meter housing, and a control unit with its own power supply is fixed to the top of the bracket.
[0009] Preferably, the center lines of the infrared emitter, the light through hole and the infrared receiver are collinear.
[0010] Preferably, a sliding bearing inner ring is sleeved on the rod body of the rotating rod, and the sliding bearing inner ring has an annular cylindrical structure; a sliding bearing outer ring is sleeved on the outer ring of the sliding bearing inner ring, and the sliding bearing outer ring has an annular cylindrical structure; the outer ring of the sliding bearing outer ring is fixed on the hole wall of the through hole.
[0011] Preferably, a power supply line is provided at one end of the infrared transmitter, a power supply and signal line is provided at one end of the infrared receiver, and the other ends of the power supply line and the power supply and signal line are both provided on a control unit with its own power supply.
[0012] Preferably, two groups of hollow hemispheres are arranged on the surface of a group of rotating rods, the hollow hemispheres are in a bowl-shaped structure, and the opening directions of the two groups of hollow hemispheres are opposite.
[0013] Preferably, an Internet of Things module is provided on the top of the control unit with its own power supply. Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model proposes an Internet of Things (IoT) device for automatically shutting down gas leakage. Two groups of flow meter housings are installed at both ends of a pipeline. A rotating rod and a hollow hemisphere are arranged in the flow meter housing. The rotating rod and the hollow hemisphere rotate when the gas flows through. The rotation of the rotating rod changes the direction of the light hole. The infrared light emitted by the infrared transmitter is intermittently detected by the infrared receiver, so that a control unit with a self-powered power supply can obtain the rotation speed of the rotating rod. The control unit with a self-powered power supply then sends the rotation speed of the rotating rod to a detection computer through an IoT module. The detection computer compares the data sent by the two groups of IoT modules. If an abnormality is found, the solenoid valve can be powered off to close the solenoid valve, thereby achieving the purpose of automatically detecting gas leakage and shutting it down by using the IoT technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in the middle.
[0018] In the figure: solenoid valve 1, flow meter housing 2, pipeline 3, through hole 4, sliding bearing outer ring 5, sliding bearing inner ring 6, rotating rod 7, light hole 8, infrared transmitter 9, infrared receiver 10, power supply line 11, power supply and signal line 12, hollow hemisphere 13, bracket 14, control unit with self-powered power supply 15, Internet of Things module 16. DETAILED DESCRIPTION
[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Embodiment 1
[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: an Internet of Things gas leakage detection automatic shut-off device, comprising: a flow meter housing 2, a through hole 4 is provided at the top of the flow meter housing 2, a rotating rod 7 is rotatably provided in the through hole 4, a hollow hemisphere 13 is fixed at the bottom of the rod body of the rotating rod 7, a light hole 8 is provided at the top of the rod body of the rotating rod 7, an infrared transmitter 9 and an infrared receiver 10 are fixed at the top of the flow meter housing 2, a control unit 15 with a power supply is provided above the flow meter housing 2, and the flow meter housing 2 is provided with two groups, and a pipe is connected between the two groups of flow meter housings 2. Channel 3, the other end of one group of flow meter housings 2 is connected to the solenoid valve 1, the other end of the other group of flow meter housings 2 is connected to the gas-using equipment, a bracket 14 is fixed to the top of the flow meter housing 2, a control unit 15 with its own power supply is fixed to the top of the bracket 14, the center lines of the infrared transmitter 9, the light hole 8 and the infrared receiver 10 are collinear, two groups of hollow hemispheres 13 are arranged on the surface of one group of rotating rods 7, the hollow hemispheres 13 are in a bowl-shaped structure, the opening directions of the two groups of hollow hemispheres 13 are opposite, and an Internet of Things module 16 is arranged on the top of the control unit 15 with its own power supply.
[0022] In actual use, the end of the solenoid valve 1 away from the flow meter housing 2 is connected to the gas supply equipment. The solenoid valve 1 adopts a normally closed solenoid valve. When the solenoid valve 1 is powered on and opened, the gas supplied by the gas supply equipment passes through the solenoid valve 1 and then through the first group of flow meter housings 2 and then enters the pipeline 3 and then passes through another group of flow meter housings 2, and finally enters the gas-using equipment from the other group of flow meter housings 2. When the gas passes through the flow meter housing 2, the bowl mouths of the two groups of bowl-shaped hollow hemispheres 13 fixed on the surface of the rotating rod 7 are in opposite directions. The resistance of the group of hollow hemispheres 13 with the bowl mouth facing the gas supply direction to the gas will be significantly greater than that of the other group of hollow hemispheres 13, which makes the gas push the two groups of hollow hemispheres 13 and the rotating rod 7 to rotate together when circulating in the flow meter housing 2. When the rotating rod 7 rotates, the direction of the light hole 8 will change. When the opening of the light hole 8 faces the infrared transmitter 9 and the infrared receiver 10, the infrared light emitted by the infrared transmitter 9 is captured by the infrared receiver 10. When the opening of the light hole 8 does not face the infrared transmitter 9 and the infrared receiver 10, the infrared light emitted by the infrared transmitter 9 is blocked by the rotating rod 7 and cannot be received by the infrared receiver 10. When the infrared receiver 10 receives the infrared light, it converts the optical signal into an electrical signal and transmits it to the self-powered control unit 15 at the top of the bracket 14. The self-powered control unit 15 records the frequency of the electrical signal sent from the infrared receiver 10 to the self-powered control unit 15 per unit time, and then sends it through the Internet of Things module 16. The detection computer detects the gas leakage of pipeline 3 by comparing the data sent by the two groups of Internet of Things modules 16. At the same time, after the device is laid and the pipeline 3 is checked to ensure that there is no leakage, a test gas supply is carried out, so that the detection computer obtains and records the data difference transmitted to the detection computer by the two groups of Internet of Things modules 16 when there is no leakage. After the device is officially put into use, once the data difference between the two groups of Internet of Things modules 16 deviates greatly from the difference recorded during the test gas supply, it means that there is a leakage in pipeline 3. The detection computer sends out an alarm and automatically cuts off the power to the solenoid valve 1, so that the solenoid valve 1 is closed to prevent the gas from continuing to leak. The automatic shutdown device for detecting gas leakage of the Internet of Things is carried out in pipeline 3. Two sets of flow meter housings 2 are installed at both ends of the flow meter housing 2, and a rotating rod 7 and a hollow hemisphere 13 are arranged in the flow meter housing 2. The rotating rod 7 and the hollow hemisphere 13 rotate when the gas flows through. The rotation of the rotating rod 7 changes the direction of the light hole 8. The infrared light emitted by the infrared transmitter 9 is intermittently detected by the infrared receiver 10, so that the control unit 15 with its own power supply can obtain the rotation speed of the rotating rod 7. The control unit 15 with its own power supply then sends the rotation speed of the rotating rod 7 to the detection computer through the Internet of Things module 16. The detection computer compares the data sent by the two sets of Internet of Things modules 16. If an abnormality is found, the solenoid valve 1 can be powered off to close the solenoid valve 1, thereby achieving the purpose of automatically detecting gas leakage and shutting it down by using the Internet of Things technology.
[0023] Embodiment 2
[0024] On the basis of embodiment 1, in order to reduce the wear of the rotating rod 7 and the wall of the through hole 4, a sliding bearing inner ring 6 is sleeved on the rod body of the rotating rod 7, and the sliding bearing inner ring 6 is an annular cylindrical structure. A sliding bearing outer ring 5 is sleeved on the outer ring of the sliding bearing inner ring 6, and the sliding bearing outer ring 5 is an annular cylindrical structure. The outer ring of the sliding bearing outer ring 5 is fixed on the wall of the through hole 4.
[0025] A sliding bearing is arranged between the rotating rod 7 and the through hole 4 . The sliding bearing is composed of a sliding bearing outer ring 5 and a sliding bearing inner ring 6 , which reduces the wear of the rotating rod 7 and the hole wall of the through hole 4 .
[0026] Embodiment 3
[0027] On the basis of the second embodiment, in order to realize the power supply of the infrared transmitter 9 and the infrared receiver 10 and the signal transmission of the infrared receiver 10, a power supply line 11 is provided at one end of the infrared transmitter 9, and a power supply and signal line 12 is provided at one end of the infrared receiver 10, and the other ends of the power supply line 11 and the power supply and signal line 12 are both provided on a control unit 15 with its own power supply.
[0028] The control unit 15 with its own power supply supplies power to the infrared transmitter 9 and the infrared receiver 10 through the power supply line 11 and the power supply and signal line 12 at the same time, and the infrared receiver 10 transmits signals through the power supply and signal line 12 at the same time.
[0029] In actual use, the end of the solenoid valve 1 away from the flow meter housing 2 is connected to the gas supply equipment. The solenoid valve 1 adopts a normally closed solenoid valve. When the solenoid valve 1 is powered on and opened, the gas supplied by the gas supply equipment passes through the solenoid valve 1 and then through the first group of flow meter housings 2 and then enters the pipeline 3 and then passes through another group of flow meter housings 2, and finally enters the gas-using equipment from the other group of flow meter housings 2. When the gas passes through the flow meter housing 2, the bowl mouths of the two groups of bowl-shaped hollow hemispheres 13 fixed on the surface of the rotating rod 7 are in opposite directions. The resistance of the group of hollow hemispheres 13 with the bowl mouth facing the gas supply direction to the gas will be significantly greater than that of the other group of hollow hemispheres 13, which makes the gas push the two groups of hollow hemispheres 13 and the rotating rod 7 to rotate together when circulating in the flow meter housing 2. When the rotating rod 7 rotates, the direction of the light hole 8 will change. When the opening of the light hole 8 faces the infrared transmitter 9 and the infrared receiver 10, the infrared light emitted by the infrared transmitter 9 is captured by the infrared receiver 10. When the opening of the light hole 8 does not face the infrared transmitter 9 and the infrared receiver 10, the infrared light emitted by the infrared transmitter 9 is blocked by the rotating rod 7 and cannot be received by the infrared receiver 10. When the infrared receiver 10 receives the infrared light, it converts the optical signal into an electrical signal and transmits it to the self-powered control unit 15 at the top of the bracket 14. The self-powered control unit 15 records the frequency of the electrical signal sent from the infrared receiver 10 to the self-powered control unit 15 per unit time, and then sends it through the Internet of Things module 16. The detection computer detects the gas leakage of pipeline 3 by comparing the data sent by the two groups of Internet of Things modules 16. At the same time, after the device is laid and the pipeline 3 is checked to ensure that there is no leakage, a test gas supply is carried out, so that the detection computer obtains and records the data difference transmitted to the detection computer by the two groups of Internet of Things modules 16 when there is no leakage. After the device is officially put into use, once the data difference between the two groups of Internet of Things modules 16 deviates greatly from the difference recorded during the test gas supply, it means that there is a leakage in pipeline 3. The detection computer sends out an alarm and automatically cuts off the power to the solenoid valve 1, so that the solenoid valve 1 is closed to prevent the gas from continuing to leak. The automatic shutdown device for detecting gas leakage of the Internet of Things is carried out in pipeline 3. Two sets of flow meter housings 2 are installed at both ends of the flow meter housing 2, and a rotating rod 7 and a hollow hemisphere 13 are arranged in the flow meter housing 2. The rotating rod 7 and the hollow hemisphere 13 rotate when the gas flows through. The rotation of the rotating rod 7 changes the direction of the light hole 8. The infrared light emitted by the infrared transmitter 9 is intermittently detected by the infrared receiver 10, so that the control unit 15 with its own power supply can obtain the rotation speed of the rotating rod 7. The control unit 15 with its own power supply then sends the rotation speed of the rotating rod 7 to the detection computer through the Internet of Things module 16. The detection computer compares the data sent by the two sets of Internet of Things modules 16. If an abnormality is found, the electromagnetic valve 1 can be powered off to close the electromagnetic valve 1, thereby achieving the purpose of automatically detecting gas leakage and shutting it down by using the Internet of Things technology;A sliding bearing is arranged between the rotating rod 7 and the through hole 4, and the sliding bearing is composed of a sliding bearing outer ring 5 and a sliding bearing inner ring 6, which reduces the wear of the rotating rod 7 and the hole wall of the through hole 4; the control unit 15 with its own power supply simultaneously supplies power to the infrared transmitter 9 and the infrared receiver 10 through the power supply line 11 and the power supply and signal line 12, and the infrared receiver 10 transmits signals through the power supply and signal line 12. ;
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An Internet of Things gas leak detection and automatic shutdown device, comprising: A flow meter housing (2), characterized in that: a through hole (4) is provided at the top of the flow meter housing (2), a rotating rod (7) is rotatably arranged in the through hole (4), a hollow hemisphere (13) is fixed at the bottom end of the rod body of the rotating rod (7), a light hole (8) is provided at the top end of the rod body of the rotating rod (7), an infrared transmitter (9) and an infrared receiver (10) are fixed at the top of the flow meter housing (2), and a control unit (15) with its own power supply is arranged above the flow meter housing (2).
2. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized in that: The flow meter housings (2) are provided in two groups, and a pipeline (3) is connected between the two groups of flow meter housings (2). The other end of one group of flow meter housings (2) is connected to a solenoid valve (1), and the other end of the other group of flow meter housings (2) is connected to a gas-using device.
3. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized in that: A bracket (14) is fixed to the top of the flow meter housing (2), and a control unit (15) with its own power supply is fixed to the top of the bracket (14).
4. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized by: The center lines of the infrared transmitter (9), the light through hole (8) and the infrared receiver (10) are collinear.
5. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized in that: The rod body of the rotating rod (7) is sleeved with a sliding bearing inner ring (6), which is in the form of an annular cylindrical structure; the outer ring of the sliding bearing inner ring (6) is sleeved with a sliding bearing outer ring (5), which is in the form of an annular cylindrical structure; the outer ring of the sliding bearing outer ring (5) is fixed to the hole wall of the through hole (4).
6. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized by: One end of the infrared transmitter (9) is provided with a power supply line (11), one end of the infrared receiver (10) is provided with a power supply and signal line (12), and the other ends of the power supply line (11) and the power supply and signal line (12) are both provided on a control unit (15) with its own power supply.
7. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized by: Two groups of hollow hemispheres (13) are arranged on the surface of a group of rotating rods (7). The hollow hemispheres (13) are in a bowl-shaped structure, and the opening directions of the two groups of hollow hemispheres (13) are opposite.
8. The Internet of Things gas leakage detection and automatic shutdown device according to claim 1 is characterized by: An Internet of Things module (16) is arranged on the top of the control unit (15) with its own power supply.