PPB-level vehicle-mounted combustible gas leakage intelligent detection system

Abstract

The utility model discloses a PPB-level vehicle-mounted combustible gas leakage intelligent detection system, which comprises a fixed seat, a gas collection assembly, a dust removal assembly, a gas analyzer module, a remote transmission assembly, a storage assembly and a positioning assembly, and is characterized in that the fixed seat is fixedly arranged at the bottom of the front end of a vehicle body; the gas collecting assembly comprises a mounting seat detachably and fixedly mounted below the fixing seat, a gas suction port formed in the lower surface of the mounting seat and a gas suction pump arranged in the rear end of the vehicle body, and the input end of the gas suction pump is connected with the gas suction port through a pipeline; the dust removal assembly comprises a filter screen arranged on the air suction port and a swing type dust removal piece arranged on the mounting seat; the gas analyzer module is connected with the output end of the gas suction pump; the remote transmission assembly is connected with the gas analyzer module; the storage assembly is connected with the gas analyzer module, and the positioning assembly is connected with the remote transmission assembly. In conclusion, the device has the advantages of novel structure, convenience in use, high efficiency, stability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas leakage detection, and particularly relates to a PPB-level vehicle-mounted combustible gas leakage intelligent detection system. Background Art

[0002] In my country, natural gas, as an important energy source, occupies a key position in the energy supply system. The gas pipeline network is widely distributed, providing energy support for many users. As time goes by, the scale of the gas pipeline network continues to increase and become increasingly large. However, the aging of the pipeline network has gradually become prominent, which has led to frequent natural gas leakage accidents. In this context, natural gas leakage inspection work has become extremely important, which is related to the safety of cities and the lives and property of the people.

[0003] The traditional inspection method mainly relies on line patrol personnel to conduct manual inspections with portable devices. This method has played a certain role in early pipeline management. Line patrol personnel hold portable devices and check one by one along the pipeline line. This method can conduct a more detailed inspection of the pipeline network.

[0004] Although the existing inspection technology has played a certain role in natural gas leak detection, it also has obvious shortcomings. The existing detection technology has a low sensitivity, only at the PPM level. When facing a large-scale gas pipeline network, such sensitivity is difficult to quickly and accurately detect leaks. Especially in terms of rapid large-area inspections, the existing technology cannot meet the requirements. Utility Model Content

[0005] In view of the above-mentioned problems, the purpose of the utility model is to provide a PPB-level vehicle-mounted combustible gas leakage intelligent detection system.

[0006] The technical solution of the utility model is: a PPB-level vehicle-mounted combustible gas leakage intelligent detection system, comprising:

[0007] A fixing seat, used for fixing at the bottom of the front end of the vehicle body;

[0008] A gas collection assembly, comprising a mounting seat detachably fixedly mounted below the fixing seat, an air intake port arranged on the lower surface of the mounting seat, and an air intake pump arranged inside the rear end of the vehicle body, wherein the input end of the air intake pump is connected to the air intake port through a pipeline;

[0009] A dust removal assembly, comprising a filter screen arranged on the air inlet and a swing-type dust removal member arranged on the mounting seat, wherein the swing-type dust removal member is used to periodically sweep away dust and debris adsorbed on the filter screen;

[0010] The gas analyzer module is arranged inside the rear end of the vehicle body. The gas analyzer module is connected to the output end of the suction pump and is used to detect the composition of the output gas. The gas analyzer module is a PPB-level high-precision gas analyzer that uses mid-infrared laser cavity enhancement technology. The core detection optical cavity is formed by high-reflectivity lenses and special inner wall coatings to calculate and analyze gas concentrations. The sensitivity can reach the PPB level. The detection speed is fast and can complete the detection within milliseconds. It is suitable for trace gas leakage detection. At the same time, in order to adapt to vehicle-mounted scenarios, the circuit performance of the module has been optimized and can be powered by a vehicle-mounted 12V power supply. A special shockproof structure is designed for the core device optical cavity to ensure long-term operating stability and detection sensitivity. This PPB-level high-precision gas analyzer has further improved its adaptability and reliability in vehicle-mounted usage scenarios while ensuring high sensitivity.

[0011] A remote transmission component is arranged inside the vehicle body and is connected to the gas analyzer module to transmit the detection data wirelessly to a remote terminal.

[0012] Furthermore, the fixing seat includes two fixing rails arranged in parallel at the bottom of the front end of the vehicle body, and a plurality of first fixing holes are provided on the side surfaces of the two fixing rails.

[0013] Furthermore, the upper surface of the mounting seat is provided with two fixing grooves corresponding to the two fixing rails, and the sides of the two fixing grooves are provided with a plurality of second fixing holes, and the second fixing holes are connected to the first fixing holes by fixing bolts.

[0014] Furthermore, the swing-type dust removal element comprises:

[0015] An electric swing arm is fixedly arranged on the lower surface of a mounting seat at one side of the air inlet;

[0016] An extension rod, fixedly arranged on the swing end of the electric swing arm;

[0017] A dust removal brush is arranged on the extension rod and is used for cleaning the lower surface of the filter screen under the reciprocating swing of the extension rod.

[0018] Furthermore, it also includes a storage component arranged inside the vehicle body, which is connected to the gas analyzer module and is used to store detection data.

[0019] Furthermore, it also includes a positioning component connected to the remote transmission component, and the positioning component includes a Beidou positioning device, a camera, and an anemometer arranged on the top of the vehicle body. Compared with the traditional GPS, the Beidou positioning system has improved the positioning accuracy and enhanced the system's autonomous control capabilities. By using the Beidou precision service network gas pipeline location data, the gas pipeline leakage location can be more accurately located, and the detection coverage rate can be improved, which solves the problems of low inspection density, low coverage rate, and difficulty in accurately detecting leakage points in underground gas pipeline networks with existing technical means.

[0020] The working principle of the utility model is as follows: the mounting seat is slidably plugged into the fixing seat so that the gas collecting component is located at the bottom of the front end of the vehicle body, the air intake port is connected to the air intake pump through a pipeline, the vehicle body moves above the pipeline to be tested, the air intake pump inhales the gas under the vehicle body through the air intake port, and then sends it to the gas analyzer module for component analysis. If a gas leak is detected, the remote transmission component wirelessly transmits the detection result and the positioning information obtained by the positioning component to the remote terminal. During the air intake process, the electric swing arm of the dust removal component swings back and forth, and the dust impurities adsorbed on the filter net are removed by the dust removal brush on the extension rod to ensure the air permeability of the filter net.

[0021] Beneficial effects of the utility model: The utility model provides a PPB-level vehicle-mounted flammable gas leakage intelligent detection system. By installing a gas collection component under the front end of the vehicle body through a fixed seat and a mounting seat, the gas under the vehicle body can be collected and transmitted to the gas analyzer module for detection. The gas analyzer module forms a core detection optical cavity through a high-reflectivity lens and a special inner wall coating to calculate and analyze the gas concentration. The sensitivity can reach the PPB level. The detection speed is fast and can complete the detection within milliseconds. It is suitable for trace gas leakage detection. The PPB-level high-precision gas analyzer further improves the adaptability and reliability of vehicle-mounted use scenarios while ensuring high sensitivity. A dust removal component is set on the gas collection component, which can sweep away dust and impurities adsorbed on the filter net to prevent dust and impurities from clogging the filter net, thereby causing the air intake port to be unable to effectively inhale the gas under the vehicle body. At the same time, a positioning component is set to accurately locate the vehicle body in real time. In short, the utility model has the advantages of novel structure, easy use, high efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a bottom view of the utility model.

[0024] Among them, 10, vehicle body; 1, fixed seat; 2, gas collection component; 21, mounting seat; 22, air intake; 23, air suction pump; 3, dust removal component; 31, filter; 32, swinging dust removal component; 321, electric swing arm; 322, extension rod; 4, gas analyzer module; 5, remote transmission component; 6, storage component; 7, positioning component; 71, Beidou positioning device; 72, camera; 73, anemometer. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 , the specific implementation methods of the utility model are described in detail. In the description of the utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] It should be noted that the circuit connections involved in the present invention all adopt conventional circuit connection methods and do not involve any innovation.

[0028] Example: Figure 1-2 As shown, a PPB-level vehicle-mounted combustible gas leakage intelligent detection system includes a fixing seat 1, a gas collection component 2, a dust removal component 3, a gas analyzer module 4, a remote transmission component 5, a storage component 6 and a positioning component 7. Among them:

[0029] The fixing seat 1 is used to be fixedly arranged at the bottom of the front end of the vehicle body 10. The fixing seat 1 includes two fixing rails arranged in parallel at the bottom of the front end of the vehicle body 10. The sides of the two fixing rails are provided with a plurality of first fixing holes.

[0030] The gas collection assembly 2 includes a mounting base 21 that is detachably fixedly mounted below the fixing base 1, an air inlet 22 arranged on the lower surface of the mounting base 21, and an air pump 23 arranged inside the rear end of the vehicle body 10. The upper surface of the mounting base 21 is provided with two fixing grooves corresponding to the two fixing rails, and the sides of the two fixing grooves are provided with a plurality of second fixing holes, the second fixing holes are connected to the first fixing holes by fixing bolts, and the input end of the air pump 23 is connected to the air inlet 22 through a pipeline;

[0031] The dust removal assembly 3 includes a filter screen 31 arranged on the air inlet 22 and a swing dust removal member 32 arranged on the mounting seat 21. The swing dust removal member 32 is used to periodically sweep away dust and debris adsorbed on the filter screen 31. The swing dust removal member 32 includes an electric swing arm 321, an extension rod 322 and a dust removal brush. The electric swing arm 321 is fixedly arranged on the lower surface of the mounting seat 21 on one side of the air inlet 22; the extension rod 322 is fixedly arranged on the swing end of the electric swing arm 321; the dust removal brush is arranged on the extension rod 322, and is used to clean the lower surface of the filter screen 31 under the reciprocating swing of the extension rod 322;

[0032] The gas analyzer module 4 is disposed inside the rear end of the vehicle body 10 and is connected to the output end of the air suction pump 23 for detecting the components of the output gas;

[0033] The remote transmission component 5 is disposed inside the vehicle body 10 and is connected to the gas analyzer module 4 to wirelessly transmit the detection data to a remote terminal;

[0034] The storage component 6 is connected to the gas analyzer module 4 for storing detection data. The positioning component 7 is connected to the remote transmission component 5 . The positioning component 7 includes a Beidou positioning device 71 , a camera 72 , and an anemometer 73 arranged on the top of the vehicle body 10 .

[0035] The working principle of the above embodiment is: the mounting base 21 is slidably inserted into the fixing base 1, so that the gas collection component 2 is located at the bottom of the front end of the vehicle body 10, and the air intake port 22 is connected to the air intake pump 23 through a pipeline. The vehicle body 10 moves above the pipeline to be tested, and the air intake pump 23 sucks the gas under the vehicle body 10 through the air intake port 22, and then sends it to the gas analyzer module 4 for component analysis. If a gas leak is detected, the remote transmission component 5 wirelessly transmits the detection result and the positioning information obtained by the positioning component 7 to the remote terminal. During the air intake process, the electric swing arm 321 of the dust removal component 3 swings back and forth, and the dust impurities adsorbed on the filter 31 are removed by the dust removal brush on the extension rod 322 to ensure the air permeability of the filter 31.

[0036] The specific models of the above electronic components are not specially specified, and ordinary products available on the market can be selected as long as they can meet the use requirements of the utility model.

[0037] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A PPB-level vehicle-mounted combustible gas leak intelligent detection system, characterized in that: include: A fixing seat (1) is used for being fixedly arranged at the bottom of the front end of the vehicle body (10); A gas collection assembly (2) comprising a mounting seat (21) detachably fixedly mounted below the fixing seat (1), an air intake port (22) arranged on the lower surface of the mounting seat (21), and an air intake pump (23) arranged inside the rear end of the vehicle body (10), wherein an input end of the air intake pump (23) is connected to the air intake port (22) via a pipeline; A dust removal assembly (3) comprising a filter screen (31) arranged on the air inlet (22) and a swing-type dust removal member (32) arranged on the mounting seat (21), wherein the swing-type dust removal member (32) is used to periodically sweep away dust and debris adsorbed on the filter screen (31); A gas analyzer module (4) is arranged inside the rear end of the vehicle body (10), the gas analyzer module (4) being connected to the output end of the air suction pump (23) and being used to detect the composition of the output gas; A remote transmission component (5) is arranged inside the vehicle body (10); the remote transmission component (5) is connected to the gas analyzer module (4) and is used to wirelessly transmit detection data to a remote terminal.

2. A PPB-level vehicle-mounted combustible gas leak intelligent detection system as claimed in claim 1, characterized in that: The fixing seat (1) comprises two fixing rails arranged in parallel at the bottom of the front end of the vehicle body (10), and a plurality of first fixing holes are arranged on the side surfaces of the two fixing rails.

3. A PPB-level vehicle-mounted combustible gas leak intelligent detection system as claimed in claim 2, characterized in that: The upper surface of the mounting seat (21) is provided with two fixing grooves corresponding to the two fixing rails, and the sides of the two fixing grooves are provided with a plurality of second fixing holes, and the second fixing holes are connected to the first fixing holes via fixing bolts.

4. A PPB-level vehicle-mounted combustible gas leak intelligent detection system as claimed in claim 1, characterized in that: The swing-type dust removal element (32) comprises: An electric swing arm (321) fixedly arranged on the lower surface of the mounting seat (21) on one side of the air intake port (22); An extension rod (322) fixedly disposed on the swing end of the electric swing arm (321); A dust removal brush is arranged on the extension rod (322) and is used to clean the lower surface of the filter screen (31) under the reciprocating swing of the extension rod (322).

5. A PPB-level vehicle-mounted combustible gas leak intelligent detection system as claimed in claim 1, characterized in that: It also includes a storage component (6) arranged inside the vehicle body (10), the storage component (6) being connected to the gas analyzer module (4) and being used to store detection data.

6. A PPB-level vehicle-mounted combustible gas leak intelligent detection system as claimed in claim 1, characterized in that: It also includes a positioning component (7) connected to the remote transmission component (5), the positioning component (7) including a Beidou positioning device (71) arranged on the top of the vehicle body (10), a camera (72), and an anemometer (73).

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