Gas detection device and online monitoring system
By designing a gas detection device that uses multi-stage cylinders and detection heads to telescopicly cooperate, the problem of difficulty in conducting comprehensive inspection of different positions in the gas valve well pipeline in the prior art is solved, and accurate detection of difficult-to-detect positions such as pipeline edges and corners is achieved, which improves the comprehensiveness and accuracy of the detection and ensures the safe operation of the gas valve well.
Patent Information
- Application Number
- CN202510232610.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-13
AI Technical Summary
The existing gas detection devices are difficult to conduct comprehensive inspections of different positions at the same height in the gas valve well pipeline, especially the locations of the pipe edges, which are easy to miss leakage points.
A gas detection device is designed, using the telescopic coordination between a multi-stage cylinder and a detection head. By controlling the telescopic expansion and contraction of a multi-stage cylinder, the detection head can be moved horizontally, so that the detection head can flexibly adjust its position, and thus can detect different positions at the same height in the gas valve well pipeline.
It effectively avoids the detection blind spot problem due to fixed position detection. For difficult-to-detect positions such as pipe edges and corners, precise detection is achieved by adjusting the position of the detection head, which greatly improves the comprehensiveness and accuracy of the detection, and can promptly discover potential gas leakage points and ensure the safe operation of the gas valve well.
Smart Images
Figure CN119985904A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of gas detection, in particular to a gas detection device and an online monitoring system. Background Art
[0002] With the continuous expansion of urban gas supply networks, gas valve wells, as key nodes in the gas transmission system, are of vital importance for their safe operation. There may be a variety of flammable, explosive, toxic and harmful gases in the gas valve wells, such as methane, carbon monoxide, hydrogen sulfide, etc. Once a leak occurs, it is very easy to cause serious accidents such as fire, explosion, poisoning, etc., posing a huge threat to the safety of people's lives and urban infrastructure.
[0003] Existing gas detection devices can often only be fixed at a certain position for detection, and it is difficult to conduct comprehensive detection of different positions at the same height in the gas valve well pipeline, especially the edge position of the pipeline cannot be effectively detected, and leakage points are easily missed. Summary of the invention
[0004] The purpose of the present invention is to provide a gas detection device and an online monitoring system to solve the problem that the existing gas detection device can only be fixed at a certain position for detection and is prone to miss leakage points.
[0005] The technical solution adopted by the present invention is as follows:
[0006] Gas detection device, comprising:
[0007] The box body has a mounting plate fixedly connected to the upper end thereof, and the four corners of the mounting plate are provided with bolts fixed to the gas valve well cover;
[0008] A support block is provided with a receiving groove on one side of the support block, a multi-stage cylinder is fixedly installed on the inner wall of the receiving groove, the telescopic end of the multi-stage cylinder is fixedly connected with a connecting block, and the lower end of the connecting block and the bottom of the support block are fixedly connected with a detection head.
[0009] Among them, a fixing tube is fixedly installed on the upper end of the support block, and a limiting rod is fixedly connected to the outer surface of the fixing tube. A first fixing plate is fixedly installed on the inner wall of the box body, and a second motor is fixedly installed on the first fixing plate. Pullways are provided on the output end of the second motor and the fixing tube, one of the pulleys is provided with an opening, and the limiting rod passes through the opening and is slidably connected to the opening, and the other pulley is fixedly connected to the output end of the second motor, and transmission belts are sleeved on the outer surfaces of the two pulleys.
[0010] Among them, a threaded sleeve is provided in the fixed tube, a limited circular groove is provided on the upper end of the inner wall of the box body, a rotating block is rotatably installed in the limited circular groove, a threaded rod is fixedly connected to the lower end of the rotating block, the threaded rod is threadedly installed in the threaded sleeve, a circular gear is fixedly installed on the outer surface of one end of the threaded rod close to the rotating block, a second fixed plate is fixedly connected to the inner wall of the box body, a first motor is fixedly installed on the second fixed plate, an output end of the first motor passes through the second fixed plate and is fixedly connected to a transmission gear, and the transmission gear is meshed with the circular gear.
[0011] Among them, a number of vertical slide grooves are opened at equal intervals on the inner wall of the fixed tube, a circular slide groove is provided at the lower end of the fixed tube, the circular slide groove is connected with the number of vertical slide grooves, and a number of sliding blocks are fixedly installed at equal intervals on the outer surface of the upper end of the threaded sleeve, and the number of sliding blocks are respectively slidably installed in the number of vertical slide grooves and are slidably connected with the circular slide groove.
[0012] Wherein, a clamping groove is provided at the lower end of the inner wall of the fixed tube, a clamping block is fixedly connected to the lower end of the threaded sleeve, and the clamping block is rotatably installed in the clamping groove.
[0013] Wherein, signal receivers are fixedly mounted on the first motor, the multi-stage cylinder and the second motor.
[0014] Wherein, a plurality of heat dissipation holes are evenly spaced on the four sides of the box body, and a waterproof and breathable membrane is fixedly installed in each of the heat dissipation holes.
[0015] The online monitoring system of the gas detection device includes a monitoring and operation terminal, a transmission device and a gas detection device. The gas detection device is deployed in the gas valve well pipeline to collect gas parameters in real time. One end of the transmission device is connected to the gas detection device to obtain data, and the other end is connected to the monitoring and operation terminal to complete two-way data transmission according to the communication protocol. The monitoring and operation terminal receives the data for display and storage. At the same time, the user can use it to set the detection parameters. The instructions are issued to the gas detection device through the transmission device to realize remote control.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0017] In the present invention, due to the telescopic cooperation of the multi-stage cylinder and the detection head, the detection head is driven to move horizontally by controlling the telescopic movement of the multi-stage cylinder, so that the detection head can flexibly adjust its position, and then different positions at the same height in the gas valve well pipeline can be detected, effectively avoiding the detection blind spot problem caused by fixed position detection. For positions that are difficult to detect, such as the edge and corners of the pipeline, accurate detection can be achieved by adjusting the position of the detection head, which greatly improves the comprehensiveness and accuracy of the detection, can timely discover potential gas leakage points, and ensure the safe operation of the gas valve well. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 It is a cross-sectional view of the internal structure of the box body in the present invention;
[0020] Figure 3 It is a structural schematic diagram of the upper end of the support block in the present invention;
[0021] Figure 4 It is a module block diagram of the online monitoring system in the present invention.
[0022] Markings in the figure: 10, box body; 101, heat dissipation hole; 102, first fixing plate; 103, second fixing plate; 104, waterproof breathable membrane; 11, mounting plate; 111, limiting circular groove; 112, bolt; 12, rotating block; 13, circular gear; 14, transmission gear; 15, first motor; 16, signal receiver; 17, threaded rod;
[0023] 20. Support block; 201. Accommodating groove; 21. Multi-stage cylinder; 22. Connecting block; 23. Detection head; 24. Fixing tube; 241. Slot; 242. Vertical slide groove; 243. Circular slide groove; 244. Limit rod; 25. Threaded sleeve; 251. Block; 252. Slider; 26. Pulley; 261. Opening; 27. Transmission belt; 28. Second motor. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0025] Reference Figure 1-Figure 4 The gas detection device includes a box body 10, a mounting plate 11 is fixedly connected to the upper end of the box body 10, and bolts 112 fixed to the gas valve well cover are arranged at the four corners of the mounting plate 11. A support block 20 is slidably installed in the box body 10, and a receiving groove 201 is opened on one side of the support block 20. A multi-stage cylinder 21 is fixedly installed on the inner wall of the receiving groove 201, and a connecting block 22 is fixedly connected to the telescopic end of the multi-stage cylinder 21. The lower end of the connecting block 22 and the bottom of the support block 20 are fixedly connected with a detection head 23.
[0026] Specifically, the mounting plate 11 at the upper end of the box body 10 and the bolts 112 at the four corners enable the gas detection device to be quickly fixed to the gas valve well cover, and by controlling the extension and retraction of the multi-stage cylinder 21, the detection head 23 is driven to move laterally, so that the detection head 23 can flexibly adjust its position, thereby being able to detect different positions at the same height in the gas valve well pipeline, effectively avoiding the detection blind spot problem caused by fixed position detection.
[0027] Reference Figure 3 As shown, a fixed tube 24 is fixedly installed on the upper end of the support block 20, and a limiting rod 244 is fixedly connected to the outer surface of the fixed tube 24. A first fixed plate 102 is fixedly installed on the inner wall of the box body 10, and a second motor 28 is fixedly installed on the first fixed plate 102. A pulley 26 is provided on the output end of the second motor 28 and the fixed tube 24, one of the pulleys 26 is provided with an opening 261, and the limiting rod 244 passes through the opening 261 and is slidably connected to the opening 261, and the other pulley 26 is fixedly connected to the output end of the second motor 28. A transmission belt 27 is sleeved on the outer surfaces of the two pulleys 26. The second motor 28 drives the fixed tube 24 to rotate through a belt transmission mechanism composed of the pulley 26 and the transmission belt 27 to provide power for the device. The limiting rod 244 passes through the opening 261 on the pulley 26 to play a limiting and guiding role, thereby ensuring that the fixed tube 24 can maintain stable rotation when it descends. When the fixed tube 24 rotates, it drives the support block 20 and the detection head 23 to move, thereby expanding the detection range.
[0028] Reference Figure 2 and Figure 3 As shown, a threaded sleeve 25 is provided in the fixing tube 24, a limited circular groove 111 is provided at the upper end of the inner wall of the box body 10, a rotating block 12 is rotatably installed in the limited circular groove 111, a threaded rod 17 is fixedly connected to the lower end of the rotating block 12, the threaded rod 17 is threadedly installed in the threaded sleeve 25, a circular gear 13 is fixedly installed on the outer surface of one end of the threaded rod 17 close to the rotating block 12, a second fixing plate 103 is fixedly connected to the inner wall of the box body 10, a first motor 15 is fixedly installed on the second fixing plate 103, an output end of the first motor 15 passes through the second fixing plate 103 and is fixedly connected to a transmission gear 14, and a transmission gear The wheel 14 is meshed with the circular gear 13, and the transmission gear 14 at the output end of the first motor 15 is meshed with the circular gear 13 on the threaded rod 17. By starting the first motor 15, the first motor 15 transmits the rotational power to the threaded rod 17, so that the threaded rod 17 rotates accordingly. The threaded rod 17 is threadedly installed in the threaded sleeve 25. When the threaded rod 17 rotates under the drive of the first motor 15, according to the principle of thread transmission, the threaded sleeve 25 will make a linear motion on the threaded rod 17, realizing the conversion of rotational motion to linear motion, and further making the fixed tube 24 drive the support block 20 to vertically descend in the box body 10.
[0029] Reference Figure 2 and Figure 3 As shown, a plurality of vertical slide grooves 242 are evenly spaced on the inner wall of the fixed tube 24, and a circular slide groove 243 is formed at the lower end of the plurality of vertical slide grooves 242 of the fixed tube 24, and the circular slide groove 243 is connected to the plurality of vertical slide grooves 242. A plurality of sliders 252 are evenly spaced and fixedly installed on the outer surface of the upper end of the threaded sleeve 25, and the plurality of sliders 252 are respectively slidably installed in the plurality of vertical slide grooves 242 and slidably connected to the circular slide groove 243. The vertical slide grooves 242 and the circular slide grooves 243 are connected to the inner wall of the fixed tube 24. The circular slide groove 243 connected at the lower end and the slider 252 installed at the upper end of the threaded sleeve 25 slide into the vertical slide groove 242 accordingly. The slider 252 can slide in the vertical slide groove 242, so that the threaded sleeve 25 can rotate with the threaded rod 17 to achieve stable up and down linear motion, and when reaching the position of the circular slide groove 243, it can slide in the circular slide groove 243 to complete the movement switching in the circumferential direction, thereby meeting the movement requirements in different directions, ensuring that the detection head 23 can flexibly adjust the detection position and eliminate the detection blind area.
[0030] Reference Figure 2 As shown, a clamping groove 241 is provided at the lower end of the inner wall of the fixing tube 24 , and a clamping block 251 is fixedly connected to the lower end of the threaded sleeve 25 , and the clamping block 251 is rotatably installed in the clamping groove 241 .
[0031] Specifically, the first motor 15 drives the transmission gear 14 to engage with the circular gear 13 on the threaded rod 17, driving the threaded rod 17 to rotate in the limiting circular groove 111, and converting the rotational motion into the linear motion of the threaded sleeve 25 through the thread, so as to realize vertical lifting and lowering. At the same time, the vertical slide groove 242 on the inner wall of the fixed tube 24 cooperates with the slider 252 on the threaded sleeve 25 to play a guiding role, and the circular slide groove 243 at the lower end is connected with the slider 252, so that the threaded sleeve 25 can realize circular motion conversion at a specific position, thereby realizing the position adjustment of the detection head 23 in the vertical and circumferential directions, expanding the detection range and ensuring the motion accuracy and stability, so that the detection head 23 can detect different positions at the same height and avoid the occurrence of detection blind spots.
[0032] Reference Figure 2As shown, the first motor 15, the multi-stage cylinder 21 and the second motor 28 are all fixedly mounted with a signal receiver 16. The shell materials of the first motor 15, the multi-stage cylinder 21 and the second motor 28 are all made of stainless steel or metal materials with a waterproof coating. These materials can not only resist water vapor erosion, but also have certain strength and corrosion resistance. The signal receiver 16 can receive signals from an external control system, so as to accurately control the operation of the first motor 15, the multi-stage cylinder 21 and the second motor 28. By receiving specific signals, the first motor 15 can accurately drive the threaded rod 17 to rotate, thereby causing the threaded sleeve 25 and the components connected thereto to move up and down according to the set requirements. The multi-stage cylinder 21 can accurately perform telescopic movements according to the signal instructions, driving the detection head 23 to reach different heights for gas detection. The second motor 28 can also accurately control its rotation angle according to the signal, etc., to achieve precise movements of other related components.
[0033] Reference Figure 2 As shown, a number of heat dissipation holes 101 are evenly spaced on the four sides of the box 10, and a waterproof breathable membrane 104 is fixedly installed in each of the heat dissipation holes 101. By opening the heat dissipation holes 101, convection can be formed between the air inside and outside the box 10. When the gas detection device inside the box 10 generates heat during operation, the hot air will be discharged through the heat dissipation holes 101, and at the same time, cold air from the outside will flow in from other heat dissipation holes 101, thereby taking away the heat generated by the device and reducing the temperature inside the box 10. The waterproof breathable membrane 104 arranged in the heat dissipation holes 101 can prevent external water vapor from entering the inside of the box 10 through the heat dissipation holes 101.
[0034] The online monitoring system of the gas detection device includes a monitoring and operation terminal, a transmission device and a gas detection device. The gas detection device is deployed in the gas valve well pipeline to collect gas parameters in real time. One end of the transmission device is connected to the gas detection device to obtain data, and the other end is connected to the monitoring and operation terminal to complete two-way data transmission according to the communication protocol. The monitoring and operation terminal receives the data for display and storage. At the same time, the user can use it to set the detection parameters. The instructions are issued to the gas detection device through the transmission equipment to realize remote control.
[0035] Specifically, the gas detection device is installed in the gas valve well pipeline. The detection head 23 in the gas detection device is usually equipped with a variety of sensors for different gases, including sensors for detecting methane, carbon monoxide, hydrogen sulfide and other gases. These sensors can continuously and in real time sense the concentration of the corresponding gas in the valve well pipeline and convert the gas concentration into electrical signals. After that, the data acquisition module inside the gas detection device will process these electrical signals, perform operations such as amplification, filtering, analog-to-digital conversion, etc., and convert them into gas parameter data in the form of digital signals to prepare for subsequent transmission. Then the transmission device is connected to the gas detection device. It will actively obtain the collected data from the gas detection device at a certain time interval or when the gas parameters change. The transmission device has a built-in communication module, which will encapsulate the data according to a pre-set communication protocol. When the monitoring and operation terminal receives the detection parameters set by the user or the remote control command, it will encapsulate this information according to the same communication protocol. After receiving the command data from the monitoring and operation terminal, the transmission device will parse it and then accurately convey the command to the gas detection device;
[0036] The monitoring and operation terminal is equipped with a special communication interface and data processing software, which can receive data sent by the transmission equipment. After receiving the data, it will first parse the data, extract the gas parameter information according to the communication protocol, and then further process the data. The processed data will be displayed to the user in an intuitive way. The monitoring and operation terminal usually has a visual interface, which may be a computer display, mobile phone APP interface, etc. On the interface, the concentration values of various gases and their changing trends will be presented in real time in the form of charts (such as line charts, bar charts), digital displays, etc. At the same time, the safety threshold range may also be marked. When the gas concentration exceeds the threshold, the user will be reminded with obvious color or alarm sound, and the user can set the detection parameters through the monitoring and operation terminal.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A gas detection device, characterized in that: include: A box body (10), the upper end of which is fixedly connected to a mounting plate (11), wherein the four corners of the mounting plate (11) are provided with bolts (112) fixed to a gas valve well cover; A support block (20), wherein a receiving groove (201) is provided on one side of the support block (20), a multi-stage cylinder (21) is fixedly mounted on the inner wall of the receiving groove (201), a connecting block (22) is fixedly connected to the telescopic end of the multi-stage cylinder (21), and a detection head (23) is fixedly connected to the lower end of the connecting block (22) and the bottom of the support block (20).
2. The gas detection device according to claim 1, characterized in that: A fixing tube (24) is fixedly mounted on the upper end of the support block (20), a limiting rod (244) is fixedly connected to the outer surface of the fixing tube (24), a first fixing plate (102) is fixedly mounted on the inner wall of the box body (10), a second motor (28) is fixedly mounted on the first fixing plate (102), a pulley (26) is provided on the output end of the second motor (28) and the fixing tube (24), one of the pulleys (26) is provided with an opening (261), the limiting rod (244) passes through the opening (261) and is slidably connected to the opening (261), the other pulley (26) is fixedly connected to the output end of the second motor (28), and a transmission belt (27) is sleeved on the outer surfaces of the two pulleys (26).
3. The gas detection device according to claim 2, characterized in that: A threaded sleeve (25) is provided in the fixing tube (24); a limiting circular groove (111) is provided at the upper end of the inner wall of the box body (10); a rotating block (12) is rotatably installed in the limiting circular groove (111); a threaded rod (17) is fixedly connected to the lower end of the rotating block (12); the threaded rod (17) is threadedly installed in the threaded sleeve (25); a circular gear (13) is fixedly installed on the outer surface of one end of the threaded rod (17) close to the rotating block (12); a second fixing plate (103) is fixedly connected to the inner wall of the box body (10); a first motor (15) is fixedly installed on the second fixing plate (103); an output end of the first motor (15) passes through the second fixing plate (103) and is fixedly connected to a transmission gear (14); the transmission gear (14) is meshed with the circular gear (13).
4. The gas detection device according to claim 3, characterized in that: A plurality of vertical slide grooves (242) are formed at equal intervals on the inner wall of the fixed tube (24); a circular slide groove (243) is formed at the lower end of the plurality of vertical slide grooves (242); the circular slide groove (243) is communicated with the plurality of vertical slide grooves (242); a plurality of sliders (252) are fixedly installed at equal intervals on the outer surface of the upper end of the threaded sleeve (25); the plurality of sliders (252) are respectively slidably installed in the plurality of vertical slide grooves (242) and are slidably connected with the circular slide groove (243).
5. The gas detection device according to claim 3, characterized in that: A clamping groove (241) is provided at the lower end of the inner wall of the fixed tube (24), and a clamping block (251) is fixedly connected to the lower end of the threaded sleeve (25), and the clamping block (251) is rotatably installed in the clamping groove (241).
6. The gas detection device according to claim 1, characterized in that: A signal receiver (16) is fixedly mounted on the first motor (15), the multi-stage cylinder (21) and the second motor (28).
7. The gas detection device according to claim 1, characterized in that: A plurality of heat dissipation holes (101) are evenly spaced on the four sides of the box body (10), and a waterproof and breathable membrane (104) is fixedly installed in each of the heat dissipation holes (101).
8. Online monitoring system, characterized in that, It comprises the gas detection device, transmission equipment and monitoring and operation terminal described in any one of claims 1 to 7, wherein the gas detection device is deployed in the gas valve well pipeline to collect gas parameters in real time, one end of the transmission device is connected to the gas detection device for acquiring data, and the other end is connected to the monitoring and operation terminal to complete two-way data transmission according to the communication protocol, the monitoring and operation terminal receives the data for display and storage, and the user can use it to set the detection parameters, and the instructions are issued to the gas detection device via the transmission equipment to realize remote control.