Natural gas leakage detection device

Abstract

The invention discloses a natural gas leakage detection device, which belongs to the technical field of natural gas leakage detection and comprises two polygonal blocks, arc-shaped grooves are formed in the inner sides of the two polygonal blocks, four linear motors are arranged on the outer sides of the two polygonal blocks, and roller driving mechanisms are arranged on the four linear motors. Power distribution boxes are fixedly mounted on the outer sides of the two polygonal blocks, control chips, alarms, gas detectors, power sources, image pick-up devices and wireless transmitters are arranged in the two power distribution boxes, and the control chips, the alarms, the gas detectors, the power sources, the image pick-up devices and the wireless transmitters are electrically connected in sequence; the gas detector and the camera are both located on the inner side of the arc-shaped groove. According to the invention, through walking detection on the outer side of the gas pipe, the gas pipe can be automatically detected, the hand-held operation of a worker is avoided, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of natural gas leakage detection, and in particular, relates to a natural gas leakage detection device. Background Art

[0002] As a high-quality, efficient and clean energy, natural gas has gradually become the dominant gas source for urban gas, promoting social and economic development and reducing environmental pollution. In cities, as more and more residential buildings use natural gas, the scope is getting wider and wider. Once a natural gas leak occurs in a residential building, especially when a natural gas leak occurs in a residential building late at night, it is often easy to cause a serious safety accident. Therefore, a special natural gas pipeline leak detection device is needed to promptly detect the leak point and then perform timely repairs to prevent accidents. During use, natural gas leaks may occur due to improper use or corrosion, leading to fire accidents or poisoning of personnel. Therefore, regular inspection and maintenance of natural gas pipelines is a very important task, so the natural gas pipeline leak detection device came into being.

[0003] When the existing natural gas leak detection device detects the natural gas pipeline, the detection personnel need to hold a gas detector to detect the natural gas pipeline. Since the natural gas pipeline is very long, the detection workload is large, the labor intensity of the detection personnel is increased, and the detection efficiency is low. In order to solve the above problems, a natural gas leak detection device is proposed in this application. Summary of the invention

[0004] In view of the problems in the related art, the present invention proposes a natural gas leakage detection device to overcome the above technical problems existing in the existing related art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A natural gas leak detection device comprises two polygonal blocks, wherein the inner sides of the two polygonal blocks are provided with arc grooves, the outer sides of the two polygonal blocks are provided with four linear motors, the four linear motors are provided with roller drive mechanisms, the outer sides of the two polygonal blocks are fixedly installed with distribution boxes, the two distribution boxes are provided with control chips, alarms, gas detectors, power supplies, cameras and wireless transmitters, the control chips, alarms, gas detectors, power supplies, cameras and wireless transmitters are electrically connected in sequence, the gas detectors and cameras are both located on the inner sides of the arc grooves, the two wireless transmitters are connected with the same wireless remote controller, and the wireless remote controllers have built-in display screens.

[0006] Preferably, connecting strips are fixedly installed at both ends of the two polygonal blocks, and mounting holes are opened on the four connecting strips, and bolts are connected to the corresponding two mounting holes.

[0007] By using bolts to install the two polygonal blocks together, an arc-shaped hollow structure is formed between the two side blocks for accommodating the gas pipe.

[0008] Preferably, a handle is provided on the outside of the distribution box.

[0009] The handle provided can facilitate carrying the whole unit, and the polygonal block can be lifted by one hand for hand-held use.

[0010] Preferably, the roller driving mechanism comprises a support frame, a driving roller is rotatably mounted on the inner side of the support frame, the inner side of the driving roller is arc-shaped for cooperating with the outer side of the gas pipe, and a synchronous motor is mounted on the outer side of the driving roller.

[0011] The corresponding driving roller is driven to rotate by the synchronous motor, so that the driving roller moves on the outside of the gas pipe.

[0012] Preferably, a pressure sensor is installed between the support frame and the output shaft of the linear motor, and both the linear motor and the pressure sensor are connected to a control chip.

[0013] The pressure value between the driving roller and the gas pipe is set by the pressure sensor, so that the driving roller and the gas pipe are closely fitted to avoid slipping.

[0014] Preferably, the alarm is arranged on the outside of the distribution box.

[0015] After detecting a gas leak, the alarm will sound a warning to provide a reminder for easy observation.

[0016] Preferably, a layer of soft protective pad is provided on the inner surface of the arc groove. The soft protective pad has good elasticity and wear resistance, and can play a buffering and protective role when in contact with the gas pipe to prevent damage to the gas pipe. At the same time, the soft protective pad fits tightly with the arc groove to ensure the stability of the detection process.

[0017] Preferably, the control chip has data storage and analysis functions, and can record the data information detected by the gas detector and the camera in real time, and analyze and process the data to determine the situation and extent of natural gas leakage, and at the same time transmit the processed data to the display screen of the wireless remote control through a wireless transmitter in a timely manner so that relevant personnel can view and subsequently process it.

[0018] In summary, the technical effects and advantages of the present invention are as follows: Two polygonal blocks are installed together by bolts and wrapped around the outside of the gas pipe. An arc-shaped hollow structure is formed between the two polygonal blocks to accommodate the gas pipe. Two groups of roller drive mechanisms are formed on the inner sides of the two polygonal blocks. Each group of roller drive mechanisms has four roller drive mechanisms. Any group of roller drive mechanisms is selected for use. Four linear motors are used to push the roller drive mechanisms close to the gas pipe. The pressure value between the drive roller and the gas pipe is set by a pressure sensor, so that the drive roller and the gas pipe fit closely to avoid slipping. Four synchronous motors drive the corresponding four drive rollers to rotate, so that the four drive rollers move on the outside of the gas pipe. The images are monitored by two symmetrically arranged cameras and transmitted to the display screen on the wireless remote control through the control chip and wireless transmitter, so that observation can be made to avoid hand-held operation by the staff. Two symmetrically arranged gas detectors are used to detect whether there is a gas leak on the outside of the pipeline. If a gas leak occurs, the control chip controls the alarm to sound an alarm, and transmits the result to the wireless remote control through the wireless transmitter, so that the staff can easily determine the leak location and carry out maintenance; When encountering the flange interface position of the gas pipe, the four roller drive mechanisms on the upper side directly cross the interface position, control the four roller drive mechanisms on the upper side to contact the gas pipe, and retract the four roller drive mechanisms on the lower side. The four roller drive mechanisms on the upper side drive to continue moving, so that the four roller drive mechanisms on the lower side cross the flange interface. The four roller drive mechanisms on the lower side can be used again to drive to continue moving until all the gas pipe inspections are completed. The high-altitude operation can be performed, and the handle can be conveniently carried as a whole. The polygonal block can be lifted by one hand for hand-held use. The present invention can automatically detect the gas pipe by walking and detecting outside the gas pipe, avoiding manual operation by workers, thus improving work efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A right view structural diagram of ; Figure 3 It is a schematic diagram of the structure of the polygonal block and its related parts of the present invention; Figure 4 It is a schematic diagram of the structure of the linear motor and roller drive mechanism and related parts in the present invention; Figure 5 For the present invention Figure 4 A right view structural diagram of ; Figure 6 This is a schematic diagram of the internal structure of the power distribution box of the present invention; Figure 7This is a principle block diagram of the gas detection in the present invention.

[0020] In the figure: 1. Polygonal block; 11. Arc groove; 12. Connecting strip; 13. Bolt; 14. Mounting hole; 2. Distribution box; 21. Handle; 3. Roller drive mechanism; 31. Support frame; 32. Pressure sensor; 33. Synchronous motor; 34. Drive roller; 4. Linear motor; 5. Control chip; 6. Alarm; 7. Gas detector; 8. Power supply; 9. Camera; 10. Wireless transmitter. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-7 A natural gas leak detection device comprises two polygonal blocks 1, the inner sides of the two polygonal blocks 1 are provided with arc grooves 11, the outer sides of the two polygonal blocks 1 are provided with four linear motors 4, the four linear motors 4 are provided with roller drive mechanisms 3, the outer sides of the two polygonal blocks 1 are fixedly installed with distribution boxes 2, the two distribution boxes 2 are provided with control chips 5, alarms 6, gas detectors 7, power supplies 8, cameras 9 and wireless transmitters 10, the control chips 5, alarms 6, gas detectors 7, power supplies 8, cameras 9 and wireless transmitters 10 are electrically connected in sequence, the gas detectors 7 and cameras 9 are both located on the inner sides of the arc grooves 11, the two wireless transmitters 10 are connected with the same wireless remote controller, and the wireless remote controllers have built-in display screens.

[0023] Reference Figure 1 and Figure 3 In this embodiment, connecting strips 12 are fixedly installed at both ends of the two polygonal blocks 1, and mounting holes 14 are opened on the four connecting strips 12, and bolts 13 are connected to the corresponding two mounting holes 14.

[0024] By using bolts 13 to mount the two polygonal blocks 1 together, an arc-shaped hollow structure is formed between the two polygonal blocks 1 for accommodating the gas pipe.

[0025] Reference Figure 1 and Figure 2 In this embodiment, a handle 21 is provided on the outer side of the distribution box 2.

[0026] The handle 21 can be easily carried as a whole, and the polygonal block 1 can be lifted by one hand for hand-held use.

[0027] Reference Figure 4 and Figure 5In this embodiment, the roller driving mechanism 3 includes a support frame 31, and a driving roller 34 is rotatably installed on the inner side of the support frame 31. The inner side of the driving roller 34 is arc-shaped for cooperating with the outer side of the gas pipe, and a synchronous motor 33 is installed on the outer side of the driving roller 34.

[0028] The corresponding driving roller 34 is driven to rotate by the synchronous motor 33 so that the driving roller 34 moves on the outside of the gas pipe.

[0029] Reference Figure 1 and Figure 4 In this embodiment, a pressure sensor 32 is installed between the support frame 31 and the output shaft of the linear motor 4 , and both the linear motor 4 and the pressure sensor 32 are connected to the control chip 5 .

[0030] The pressure value between the driving roller 34 and the gas pipe is set by the pressure sensor 32 so that the driving roller 34 and the gas pipe are closely fitted to avoid slipping.

[0031] Reference Figure 1 and Figure 2 In this embodiment, the alarm 6 is arranged on the outside of the distribution box 2.

[0032] After detecting the gas leakage, the alarm 6 sends out an alarm to remind, which is convenient for observation.

[0033] In the present invention, the control chip 5 has data storage and analysis functions, and can record the data information detected by the gas detector 7 and the camera 9 in real time, and analyze and process these data to determine the situation and degree of natural gas leakage. At the same time, the processed data is transmitted to the display screen of the wireless remote control through the wireless transmitter 10 in a timely manner so that relevant personnel can view and process it later.

[0034] Here’s how it works: When in use, firstly, two power supplies 8 are used to power each electrical device. Two polygonal blocks 1 are installed together with bolts 13 and wrapped around the outside of the gas pipe to form an arc-shaped hollow structure that can accommodate the gas pipe. Then a group of roller drive mechanisms 3 are selected for operation, such as the four roller drive mechanisms 3 below (usually the four on the rear side of the forward direction are selected to facilitate the subsequent crossing of the gas pipeline flange interface). The roller drive mechanism 3 is pushed close to the gas pipe by four linear motors 4, and the appropriate pressure value between the drive roller 34 and the gas pipe is set with the help of the pressure sensor 32 to ensure a close fit to avoid slipping. Then the four synchronous motors 33 are started to drive the corresponding drive rollers 34 to rotate and walk on the outside of the gas pipe. At the same time, the picture is monitored by two symmetrically arranged cameras 9, and transmitted to the wireless remote control display screen for observation through the control chip 5 and the wireless transmitter 10, without the need for handheld operation by the staff. The two symmetrically arranged gas detectors 7 detect the gas leakage outside the pipeline. If there is a leak, the control chip 5 controls the alarm 6 to sound an alarm and transmit the result to the wireless remote control, so that the staff can determine and repair the leak location; if there is no leak, the whole body continues to be controlled to walk outside the gas pipe. When encountering the flange interface of the gas pipe, the four roller drive mechanisms 3 above directly cross the interface, and then control the upper roller drive mechanism 3 to contact the gas pipe, and the lower roller drive mechanism 3 is retracted. The upper roller drive mechanism 3 drives to continue walking, so that the lower roller drive mechanism 3 also crosses the flange interface, and then switches to use the lower roller drive mechanism 3 to drive walking until the comprehensive inspection of the gas pipe is completed. In addition, the device can be used for high-altitude operations, and the handle 21 is convenient for carrying. The polygonal block 1 can be lifted by one hand and used handheld. The soft protective pad in the arc groove 11 plays a role in buffering and protecting the gas pipe and ensuring the stability of the detection process. The control chip 5 also has data storage and analysis functions, which can record and analyze the data information detected by the gas detector 7 and the camera 9 in real time to determine the situation and extent of natural gas leakage. The processed data is promptly transmitted to the wireless remote control display screen through the wireless transmitter 10 for relevant personnel to view and subsequently process.

[0035] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A natural gas leak detection device, comprising two polygonal blocks (1), characterized in that: The inner sides of the two polygonal blocks (1) are each provided with an arc groove (11), the outer sides of the two polygonal blocks (1) are each provided with four linear motors (4), and the four linear motors (4) are each provided with a roller drive mechanism (3). The outer sides of the two polygonal blocks (1) are each fixedly mounted with a distribution box (2), and the two distribution boxes (2) are each provided with a control chip (5), an alarm (6), a gas detector (7), a power supply (8), a camera (9) and a wireless transmitter (10). The control chip (5), the alarm (6), the gas detector (7), the power supply (8), the camera (9) and the wireless transmitter (10) are electrically connected in sequence, and the gas detector (7) and the camera (9) are both located on the inner side of the arc groove (11). The two wireless transmitters (10) are connected with the same wireless remote controller, and the wireless remote controller has a display screen.

2. A natural gas leak detection device according to claim 1, characterized in that: Connecting strips (12) are fixedly mounted at both ends of the two polygonal blocks (1), and mounting holes (14) are provided on the four connecting strips (12), and bolts (13) are connected to two corresponding mounting holes (14).

3. A natural gas leak detection device according to claim 1, characterized in that: A handle (21) is provided on the outer side of the power distribution box (2).

4. A natural gas leak detection device according to claim 1, characterized in that: The roller drive mechanism (3) comprises a support frame (31), a driving roller (34) being rotatably mounted on the inner side of the support frame (31), the inner side of the driving roller (34) being arc-shaped and configured to cooperate with the outer side of the gas pipe, and a synchronous motor (33) being mounted on the outer side of the driving roller (34).

5. A natural gas leak detection device according to claim 4, characterized in that: A pressure sensor (32) is installed between the support frame (31) and the output shaft of the linear motor (4), and both the linear motor (4) and the pressure sensor (32) are connected to the control chip (5).

6. A natural gas leak detection device according to claim 1, characterized in that: The alarm (6) is arranged outside the power distribution box (2).

7. A natural gas leak detection device according to claim 1, characterized in that: The inner surface of the arc-shaped groove (11) is provided with a layer of soft protective pad, which has good elasticity and wear resistance and can play a buffering and protective role when in contact with the gas pipe to prevent damage to the gas pipe. At the same time, the soft protective pad fits tightly with the arc-shaped groove (11) to ensure the stability of the detection process.

8. A natural gas leak detection device according to claim 1, characterized in that: The control chip (5) has data storage and analysis functions, and is capable of recording data information detected by the gas detector (7) and the camera (9) in real time, and analyzing and processing the data to determine the situation and extent of natural gas leakage, and at the same time transmitting the processed data to the display screen of the wireless remote control via the wireless transmitter (10) in a timely manner so that relevant personnel can view and subsequently process the data.

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