Desert environment visual range obstacle monitoring system

Abstract

The utility model provides a desert environment visual range obstacle monitoring system which comprises a case, a sensor mainboard and a sampling pipe are installed on the top of the case, a temperature sensor, a humidity sensor and a pressure sensor are integrated on the sensor mainboard, and a cutter is installed at the air inlet end of the sampling pipe. A monitoring module is mounted in the case, the monitoring module comprises a light scattering particle sensor, a vacuum filter, a meter front pressure sensor, a flow sensor, a sampling pump and a three-way valve which are sequentially connected through a pipeline, the light scattering particle sensor is connected to a sampling pipe, a second port of the three-way valve is connected with a gas exhaust port, and a second port of the three-way valve is connected with a gas outlet. And a third port of the three-way valve is connected to the light scattering particle sensor. The vacuum filter is additionally arranged at the front end of the sampling pump, so that the sampling pump can be effectively prevented from being blocked by particulate matters, and the maintenance period of equipment is prolonged; clean gas is drained to the light scattering particle sensor to form a back-blowing self-cleaning gas path, so that the service life of the light scattering particle sensor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental monitoring equipment, and particularly relates to a visual range obstruction monitoring system for desert environment. Background Art

[0002] The visual range obstruction phenomenon instrument adopts the principle of laser scattering and can continuously measure the mass concentration of PM10 and PM2.5 particles in the atmosphere for a long time, automatically and continuously. It can either operate independently to monitor the mass concentration of PM10 and PM2.5 particles, or cooperate with other ground meteorological equipment to identify visual range obstruction weather phenomena such as haze and sand dust. Conducting long-term continuous observations in desert areas using automatic detection equipment such as visual range obstruction phenomenon instruments can meet the research needs of desert meteorology and related disciplines, thereby promoting the research on desert atmospheric environment in China and monitoring for disaster early warning. Existing visual range obstruction monitoring equipment is developed to adapt to ordinary inland environments, and there are factors such as low accuracy in monitoring high-concentration values in desert environments, easy pump blockage, and short operation and maintenance cycles, which are not suitable for carrying out 24-hour automatic monitoring work in the harsh desert environment for a long time. Summary of the Invention

[0003] Aiming at the technical problem that the existing visual range obstruction monitoring equipment is not suitable for long-term operation in desert environments, the utility model proposes a visual range obstruction monitoring system for desert environment with strong applicability, large monitoring range, and long-term operability.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A visual range obstruction monitoring system for desert environment includes a chassis. A sensor main board and a sampling pipe are installed on the top of the chassis. A temperature sensor, a humidity sensor, and a pressure sensor are integrated on the sensor main board. A cutter is installed at the air inlet end of the sampling pipe. A monitoring module is installed in the chassis. The monitoring module includes a light scattering particle sensor, a vacuum filter, a pre-pressure sensor, a flow sensor, a sampling pump, and a three-way valve connected in sequence through pipelines. The light scattering particle sensor is connected to the sampling pipe. The second port of the three-way valve is connected to a gas discharge port, and the third port of the three-way valve is connected to the light scattering particle sensor.

[0006] Preferably, the monitoring module is installed in a monitoring box.

[0007] Preferably, a quick connection socket is installed on the top of the chassis. The sampling pipe is installed on the quick connection socket through a sampling pipe base, and a heating cylinder is sleeved outside the sampling pipe.

[0008] Preferably, a waterproof pad is arranged between the quick connection socket and the chassis.

[0009] Preferably, the sensor main board is connected to the chassis through an aviation plug.

[0010] Preferably, a door is provided on the chassis, and a second-layer door is provided inside the chassis. A power switch and an indicator light are installed on the second-layer door.

[0011] Preferably, a filter screen and a rain shield are connected to the upper end of the cutter.

[0012] Preferably, the sensor main board is installed inside the sensor sleeve, and a waterproof connector, a filter, and a louver box are installed at the upper end of the sensor sleeve.

[0013] Preferably, a door lock is also provided on the second-layer door.

[0014] Preferably, feet are provided at the bottom of the chassis.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] In the desert environment visibility obstacle monitoring system of the present utility model, a vacuum filter is installed at the front end of the sampling pump, which can effectively prevent the sampling pump from being blocked by particulate matter and extend the maintenance cycle of the equipment.

[0017] The clean gas is diverted to the optical scattering particle sensor to form a backflush self-cleaning gas path, which can automatically clean the optical scattering particle sensor to extend its service life.

[0018] The desert environment visibility obstacle monitoring system is particularly suitable for the desert environment with a high concentration of particulate matter, has strong applicability, a large monitoring range, and can operate for a long time; it can provide important data support for meteorological prediction, help predict the occurrence, development, and dissipation processes of severe weather such as sandstorms, and provide a decision-making basis for relevant departments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the desert environment visibility obstacle monitoring system of the present utility model;

[0020] Figure 2 is an exploded view of the desert environment visibility obstacle monitoring system of the present utility model;

[0021] In the above figures: 1. Chassis; 2. Cabinet door; 3. Second-layer door; 4. Support feet; 5. Power interface; 6. Sensor main board; 7. Aviation plug; 8. Aviation socket; 9. Sensor sleeve; 10. Waterproof connector; 11. Filter; 12. Louver box; 13. Sampling tube; 14. Sampling tube base; 15. Heating cylinder; 16. Cutter; 17. Connecting pipe; 18. Filter screen; 19. Rain shield; 20. Quick-connect socket; 21. Waterproof pad; 22. Monitoring base; 23. Monitoring cover plate; 24. Light-scattering particle sensor; 25. Vacuum filter; 26. Pressure sensor before meter; 27. Flow sensor; 28. Sampling pump; 29. Three-way valve; 30. Main control board; 31. Controller box; 32. Antenna; 33. Door lock; 34. Indicator light; 35. Gas discharge port; 36. Power switch. Detailed implementation mode

[0022] For a better understanding of the present utility model, specific descriptions will be made below in conjunction with the drawings and embodiments.

[0023] Embodiment:

[0024] As Figure 1 , Figure 2 shown, a visibility obstruction monitoring system for desert environment includes a chassis 1. A cabinet door 2 is arranged on the front side of the chassis 1. A second-layer door 3 is also installed inside the chassis 1 at a position on the inner side of the cabinet door 2. Support feet 4 and a power interface 5 are arranged at the bottom of the chassis 1. A temperature, humidity and atmospheric pressure detection module for detecting environmental temperature, humidity and atmospheric pressure and a sampling module for air intake are installed on the top of the chassis 1. A monitoring module and a control module are installed inside the chassis 1.

[0025] The temperature, humidity and atmospheric pressure detection module includes a sensor main board 6. A temperature sensor, a humidity sensor and a pressure sensor are integrated on the sensor main board 6. An aviation plug 7 is installed at the lower end of the sensor main board 6. An aviation socket 8 matching it is installed on the top of the chassis 1. A sensor sleeve 9 is sleeved outside the sensor main board 6. A waterproof connector 10, a filter 11 and a louver box 12 are installed at the upper end of the sensor sleeve 9. Through the above structure, it can effectively prevent temperature deviation caused by direct sunlight and direct scouring of rainwater on the sensor, ensuring that the temperature, humidity and atmospheric pressure detection module works all day long and is not affected by weather changes.

[0026] The sampling module includes a sampling tube 13. The lower end of the sampling tube 13 is connected to a sampling tube base 14. A heating cylinder 15 is sleeved outside the sampling tube 13. The upper end of the sampling tube 13 is connected to a cutter 16. A connecting tube 17 is installed at the upper end of the cutter 16. A filter net 18 and a rain shield 19 are installed at the upper end of the connecting tube 17. A quick-connect socket 20 is installed at the bottom of the chassis 1. The sampling tube base 14 is inserted into the quick-connect socket 20. A waterproof pad 21 is also arranged between the sampling tube base 14 and the chassis 1. After the sampling module is assembled, it can be quickly docked through the quick-connect socket 20, which is convenient for split transportation and assembly.

[0027] The monitoring module is installed in a monitoring box. The monitoring box includes a monitoring base 22 and a monitoring cover plate 23. The monitoring module includes an optical scattering particle sensor 24, a vacuum filter 25, a pre-pressure sensor 26, a flow sensor 27, a sampling pump 28 and a three-way valve 29 that are sequentially connected through pipelines. The optical scattering particle sensor 24 is connected to the sampling tube 13. The second port of the three-way valve 29 is connected to a gas discharge port 35. The third port of the three-way valve 29 is connected to the lower interface of the optical scattering particle sensor 24.

[0028] The control module includes a main control board 30. The main control board 30 is installed in a controller box 31. The sensor main board 6 is electrically connected to the main control board 30. The optical scattering particle sensor 24, the vacuum filter 25, the pre-pressure sensor 26, the flow sensor 27 and the sampling pump 28 are all electrically connected to the main control board 30. To facilitate remote signal transmission, an antenna 32 is also installed on the chassis 1. The main control board 30 is integrated with a Beidou data transmission module.

[0029] A door lock 33 is also arranged on the second-layer door 3. A power switch 36 and indicator lights 34 for displaying working states such as power supply, sampling, heating and faults are also installed on the second-layer door 3.

[0030] After the sampling pump 28 is started, the air flow is initially filtered by the filter net 18, and then enters the optical scattering particle sensor 24 of the monitoring module through the cutter 16 and the sampling tube 13. The optical scattering particle sensor 24 detects the particulate matter concentration. After that, the air flow is filtered by the vacuum filter 25 and then passes through the pre-pressure sensor 26 and the flow sensor 27. The pre-pressure sensor 26 and the flow sensor 27 detect the air flow pressure and flow rate and transmit them to the main control board 30. Finally, the clean air flow reaches the three-way valve 29 after passing through the sampling pump 28. One way of the air flow is discharged from the gas discharge port out of the box body, and the other way is transported to the optical scattering particle sensor 24.

[0031] In the visual range obstacle monitoring system for desert environment of the present utility model, a vacuum filter 25 is installed at the front end of the sampling pump 28, which can effectively prevent the sampling pump 28 from being blocked by particulate matter and extend the maintenance cycle of the equipment; the clean gas is diverted to the light scattering particle sensor 24 to form a backflush self-cleaning gas path, which can automatically clean the light scattering particle sensor 24 to extend its service life. This visual range obstacle monitoring system for desert environment is particularly suitable for desert environments with high particulate matter concentration, has strong applicability, a large monitoring range, and can operate for a long time, providing important data support for meteorological prediction, helping to predict the occurrence, development, and dissipation processes of severe weather such as sandstorms, and providing a decision-making basis for relevant departments.

[0032] The above is only a preferred embodiment of the present utility model, and it is not a limitation of the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still belong to the protection scope of the technical solution of the present invention.

Claims

1. A visual range obstacle monitoring system for desert environment, characterized in that: It includes a chassis, on the top of which a sensor main board and a sampling tube are installed. A temperature sensor, a humidity sensor and a pressure sensor are integrated on the sensor main board. A cutter is installed at the air inlet end of the sampling tube. A monitoring module is installed in the chassis. The monitoring module includes an optical scattering particle sensor, a vacuum filter, a pre-pressure sensor, a flow sensor, a sampling pump and a three-way valve which are connected in sequence through pipelines. The optical scattering particle sensor is connected to the sampling tube. The second port of the three-way valve is connected to a gas discharge port, and the third port of the three-way valve is connected to the optical scattering particle sensor.

2. The desert environment visibility obstruction monitoring system according to claim 1, wherein: The monitoring module is installed in a monitoring box.

3. The desert environment visibility obstruction monitoring system according to claim 1, characterized in that: Quick-connect sockets are installed on the top of the chassis. The sampling tube is installed on the quick-connect sockets through a sampling tube base, and a heating cylinder is sleeved outside the sampling tube.

4. The desert environment visibility obstruction monitoring system according to claim 1, wherein: A waterproof pad is arranged between the quick-connect socket and the chassis.

5. The desert environment visibility obstruction monitoring system according to claim 1, characterized in that: The sensor main board is connected to the chassis through an aviation plug.

6. The desert environment visibility obstruction monitoring system according to claim 1, characterized in that: A box door is arranged on the chassis, and a two-layer door is arranged inside the chassis. A power switch and an indicator light are installed on the two-layer door.

7. The desert environment visibility obstruction monitoring system according to claim 1, characterized in that: A filter screen and a rain shield are connected to the upper end of the cutter.

8. The desert environment visibility obstruction monitoring system according to claim 1, wherein: The sensor main board is installed in a sensor sleeve, and a waterproof joint, a filter and a louver box are installed at the upper end of the sensor sleeve.

9. The desert environment visibility obstruction monitoring system according to claim 6, characterized in that: A door lock is also arranged on the two-layer door.

10. The desert environment visibility obstruction monitoring system according to claim 1, characterized in that: Support feet are arranged at the bottom of the chassis.

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