Leakage detection vehicle for non-metal pipeline

Abstract

The utility model discloses a leakage detection vehicle for a non-metal pipeline, which comprises a walking trolley provided with a driving device used for driving the walking trolley to move; the detection device is arranged at the bottom of the walking trolley and comprises a plurality of gas sensors which are arranged in a staggered manner; the processing device is arranged on the walking trolley; the processing device comprises a single-chip microcomputer, a signal processor and an alarm device. The alarm device, the single-chip microcomputer, the signal processor and the detection device are sequentially connected, the single-chip microcomputer is connected with the driving device, and the signal processor receives data detected by the gas sensors in the detection device, processes the data and transmits the data to the single-chip microcomputer; the single-chip microcomputer controls whether the alarm device sends out alarm information or not and whether the driving device stops or not according to the received data. According to the utility model, the gas detection area and the detection density are increased, the gas detection accuracy can be effectively improved, and missing detection is avoided.

Description

Technical Field

[0001] The utility model relates to the field of pipeline detection, and more specifically, to a leakage detection vehicle for non-metallic pipelines. Background Art

[0002] With the development of material technology, non-metallic pipes are widely used in many fields such as urban gas, building supply and drainage, etc. due to their advantages such as corrosion resistance and high strength. In recent years, gas pipeline accidents have occurred frequently in my country, causing serious casualties, economic losses, environmental pollution and other adverse social impacts. Existing gas pipeline leakage monitoring is generally carried out by manual inspection or inspection vehicles. Manual inspection is limited by environmental conditions, and some locations cannot be reached manually. Inspection vehicles usually have a single inspection device on the inspection vehicle, which has low detection accuracy and is prone to missed detection. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] In order to achieve these purposes and other advantages according to the utility model, a leak detection vehicle for non-metallic pipelines is provided, comprising:

[0005] A traveling trolley is provided with a driving device, and the driving device is used to drive the traveling trolley to move;

[0006] A detection device, which is arranged at the bottom of the walking vehicle; the detection device includes a plurality of staggered gas sensors;

[0007] A processing device, which is arranged on the walking trolley; the processing device includes a single chip microcomputer, a signal processor and an alarm device;

[0008] The alarm device, the single-chip microcomputer, the signal processor and the detection device are connected in sequence, the single-chip microcomputer is connected to the driving device, the signal processor receives the data detected by each gas sensor in the detection device and transmits it to the single-chip microcomputer after processing, and the single-chip microcomputer controls whether the alarm device sends an alarm message and whether the driving device stops according to the received data.

[0009] Preferably, the walking trolley includes a chassis and a wheel assembly, and the chassis includes a bottom plate one, a bottom plate two and a bottom plate three which are fixedly connected in sequence from front to rear along the moving direction of the walking trolley, and the two sides of the bottom plate two are respectively separated by gaps from the bottom plate one and the bottom plate three.

[0010] Preferably, a plurality of the gas sensors form a detection array, which is arranged at the bottom of the second bottom plate, and the width of the detection array is the same as the width of the second bottom plate.

[0011] Preferably, the wheel assembly includes a pair of front wheels and a pair of rear wheels rotatably connected to the bottom of the chassis, and the driving device is fixedly arranged on the bottom plate three to drive the rear wheels to rotate.

[0012] Preferably, battery modules are respectively arranged on the base plate one and the base plate three, and the two battery modules are used to supply power to the processing device and the driving device respectively.

[0013] Preferably, it further comprises a support plate, wherein the support plate is located on the second bottom plate, and two sides of the support plate are respectively connected to the first bottom plate and the third bottom plate by bolts.

[0014] The utility model at least has the following beneficial effects:

[0015] The utility model provides a leakage detection vehicle for non-metallic pipelines. When the vehicle moves along the pipeline, multiple gas sensors arranged in a staggered manner in the detection device detect gas leakage. When any gas sensor detects a gas leak, the single-chip microcomputer controls the alarm device to send out an alarm message while the vehicle stays at the gas leak location, waiting for staff to handle it. Multiple gas sensors are staggered to form a detection array, which increases the gas detection area and detection density, and can effectively improve the accuracy of gas detection and avoid missed detection.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a leakage detection vehicle for non-metallic pipelines according to the utility model;

[0018] Figure 2 This is a top view of the walking trolley of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the detection device of the utility model; DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0021] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figure 1 and Figure 3 As shown, the utility model provides a leakage detection vehicle for non-metallic pipelines, comprising:

[0023] A traveling trolley is provided with a driving device 11, and the driving device 11 is used to drive the traveling trolley to move;

[0024] A detection device 2 is arranged at the bottom of the walking vehicle; the detection device 2 comprises a plurality of staggered gas sensors 21;

[0025] A processing device, which is arranged on the walking trolley; the processing device comprises a single chip microcomputer 1, a signal processor 3 and an alarm device 5;

[0026] The alarm device 4, the single chip microcomputer 1, the signal processor 3 and the detection device 2 are connected in sequence, the single chip microcomputer is connected to the driving device 11, the signal processor 3 receives the data detected by each gas sensor 21 in the detection device 2 and transmits it to the single chip microcomputer 1 after processing, and the single chip microcomputer 1 controls whether the alarm device 5 issues an alarm message and whether the driving device stops according to the received data.

[0027] In this technical solution, the walking trolley moves along the pipeline under the drive of the driving device 11. During the movement, the gas leakage is detected by each gas sensor 21 in the detection device 2. The multiple gas sensors 21 are arranged in a staggered manner, which increases the detection area and detection density, can effectively improve the detection accuracy, and avoid missed detection; the signal processor 3 obtains the data detected by each gas sensor, and after amplification, filtering and A / D conversion, transmits it to the single-chip computer 1 for interpretation. When any of the gas sensors 2 detects a gas leak, the single-chip computer 1 sends an instruction to the alarm device 5, and the alarm device 5 sends an alarm message. Specifically, the alarm device 5 can be a buzzer, and the buzzer starts when an alarm is required; at the same time, the single-chip computer 1 controls the driving device 11 to turn off, and the walking trolley stays at the gas leakage position, waiting for the staff to handle it. Preferably, the single-chip computer 1 chip can use STM32f103zet6, which has the advantages of high performance, low cost, low power consumption, etc.; the gas sensor 21 can use an optical methane gas sensor. The connection method among the alarm device 4, the single chip computer 1, the signal processor 3, the detection device 2 and the driving device 11 can adopt the conventional connection method in the prior art.

[0028] In another technical solution, the trolley includes a chassis and a wheel assembly, the chassis includes a bottom plate 1 6, a bottom plate 2 8 and a bottom plate 3 9 which are fixedly connected in sequence from front to back along the moving direction of the trolley, and a gap 13 is provided between the two sides of the bottom plate 2 6 and the bottom plate 1 6 and the bottom plate 3 9. The gap 13 is used as a wiring groove for wiring the connection line between the processing device and the detection device 2, so that the wiring is neat and clear, and it is convenient for subsequent maintenance.

[0029] In another technical solution, a plurality of the gas sensors 21 form a detection array, which is arranged at the bottom of the bottom plate 2 8, and the width of the detection array is the same as the width of the bottom plate 2 8. The bottom plate 2 is used to carry the gas sensors 21 of the detection device 2, and the detection array is arranged with the same width as the bottom plate 2 8 to cover the pipeline as much as possible horizontally to ensure the detection coverage and accuracy. Figure 3 As shown, the gas sensors 21 in this embodiment are arranged in two rows, and the two rows are staggered to form a detection array. In actual use, multiple rows of the gas sensors 21 can be arranged according to detection requirements.

[0030] In another technical solution, the wheel assembly includes a pair of front wheels 7 and a pair of rear wheels 10 rotatably connected to the bottom of the chassis, and the driving device 11 is fixedly arranged on the bottom plate 3 9 to drive the rear wheels 10 to rotate. The walking trolley is rear-wheel driven, and the two front wheels 7 are driven wheels. The output shaft of the driving device 11 is fixedly connected to the center of the rear wheel, thereby driving the rear wheel to rotate. The driving device 11 can adopt a hybrid stepping motor, which has the characteristics of both a single-stage stepping motor and a two-stage stepping motor, and has the advantages of a small body, large torque, and high speed. Figure 2 As shown, in this embodiment, the driving device 11 is provided with two, driving the two rear wheels 10 respectively, or the two rear wheels 10 can be driven to rotate simultaneously by one driving device 11 through a rotating shaft. Furthermore, a bearing is provided between the output shaft of the driving device 11 and the rear wheel 10, and the bearing is made of steel to reduce the friction and wear between the rear wheel 10 and the output shaft. The front wheel 7 and the rear wheel 10 have the same structure, both including a hub and a tire. The hub is made of steel, which has the advantages of low cost and strong fatigue resistance. The tire is made of rubber, which can reduce the bumpy feeling during the detection and movement, thereby reducing the signal error of the detection device. Preferably, the wheel also includes a brake device, including a brake disc and a brake pad, and the brake device is connected to the single-chip computer 1 so that the walking trolley can be braked quickly.

[0031] In another technical solution, battery modules are respectively arranged on the base plate 1 6 and the base plate 3 9, and the two battery modules are respectively used to supply power to the processing device and the driving device 11, specifically including: a battery module 42 electrically connected to the processing device and a battery module 41 electrically connected to the driving device 11, and both the battery module 41 and the battery module 42 adopt maintenance-free batteries, which have the characteristics of shock resistance, high temperature resistance, small size and low self-discharge; and considering that the driving device 11 consumes a large amount of energy during operation, the battery capacity of the battery module 41 is larger than the battery capacity of the battery module 42.

[0032] In another technical solution, a support plate 12 is further included, the support plate 12 is located on the bottom plate 2 8, and the two sides of the support plate 12 are respectively connected to the bottom plate 1 6 and the bottom plate 3 9 by bolts. The support plate 12 is used to support the processing device, and it can be a rectangular steel structure.

[0033] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A leak detection vehicle for non-metallic pipelines, characterized in that: include: A traveling trolley is provided with a driving device, and the driving device is used to drive the traveling trolley to move; A detection device, which is arranged at the bottom of the walking vehicle; the detection device includes a plurality of staggered gas sensors; A processing device, which is arranged on the walking trolley; the processing device includes a single chip microcomputer, a signal processor and an alarm device; The alarm device, the single-chip microcomputer, the signal processor and the detection device are connected in sequence, the single-chip microcomputer is connected to the driving device, the signal processor receives the data detected by each gas sensor in the detection device and transmits it to the single-chip microcomputer after processing, and the single-chip microcomputer controls whether the alarm device sends an alarm message and whether the driving device stops according to the received data.

2. The leakage detection vehicle for non-metallic pipelines according to claim 1, characterized in that: The walking trolley includes a chassis and a wheel assembly. The chassis includes a bottom plate 1, a bottom plate 2 and a bottom plate 3 which are fixedly connected in sequence from front to back along the moving direction of the walking trolley. There are gaps between the two sides of the bottom plate 2 and the bottom plate 1 and the bottom plate 3 respectively.

3. The leakage detection vehicle for non-metallic pipelines according to claim 2, characterized in that: A plurality of the gas sensors form a detection array, which is arranged at the bottom of the second bottom plate, and the width of the detection array is the same as the width of the second bottom plate.

4. The leakage detection vehicle for non-metallic pipelines according to claim 2, characterized in that: The wheel assembly includes a pair of front wheels and a pair of rear wheels rotatably connected to the bottom of the chassis, and the driving device is fixedly arranged on the bottom plate three to drive the rear wheels to rotate.

5. The leakage detection vehicle for non-metallic pipelines according to claim 2, characterized in that: The base plate 1 and the base plate 3 are respectively provided with battery modules, and the two battery modules are used to supply power to the processing device and the driving device respectively.

6. The leakage detection vehicle for non-metallic pipelines according to claim 2, characterized in that: It also includes a support plate, which is located on the second bottom plate, and two sides of the support plate are respectively connected to the first bottom plate and the third bottom plate by bolts.

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