Atmospheric pollutant monitoring device

Abstract

The utility model discloses an atmospheric pollutant monitoring device. The atmospheric pollutant monitoring device comprises a sampling structure and a monitoring equipment host, the sampling structure is a flat box body, a positive pressure fan is formed on the top surface of the box body, and air windows are formed in four side surfaces of the box body; a plurality of grid plates which are transversely arranged at intervals are arranged in the transom window, and the plurality of grid plates fall down through self weight when being not stressed so as to seal the transom window; when positive pressure is generated on the inner side of the sampling structure through the positive pressure fan, the plurality of grid plates rotate around the rotating shaft to adjust the opening degree of the transom window; a sensor combination for collecting atmospheric parameters and pollutant data is assembled in the sampling structure; the monitoring equipment host is fixedly connected to the lower part of the sampling structure, and the sensor combination is electrically connected with the monitoring equipment host. The sensor is compact in structure, convenient to install, use, disassemble and assemble, good in anti-interference performance and capable of meeting monitoring requirements under various environmental conditions.

Description

Technical Field

[0001] The utility model belongs to the field of air pollution prevention and control, in particular to an air pollutant monitoring device. Background Art

[0002] Air pollutants refer to substances that are discharged into the atmosphere due to human activities or natural processes and have harmful effects on humans and the environment. These substances include but are not limited to dust / inhalable particulate matter, sulfur dioxide, nitrogen oxides, carbon monoxide, volatile organic compounds (VOCs), photochemical oxides (such as ozone) and greenhouse gases (such as methane). Air pollutants not only directly harm the health of humans, animals and plants in the environment, but also cause acid rain and damage the environment and climate.

[0003] Atmospheric pollutant monitoring refers to measuring the types and concentrations of pollutants in the atmosphere, and analyzing their temporal and spatial distribution and change patterns. By mastering the distribution and diffusion patterns of pollutants in the atmosphere, atmospheric pollutants can be better prevented and treated. In the prior art, there are various monitoring methods and equipment for atmospheric pollutants, with low automation, and most of them are directly exposed to the atmosphere for sampling and monitoring. When there is heavy rain or large local dust in the air, the reliability of the data collected by such a sampling structure is often greatly reduced. There are also a small number of monitoring devices set in the outer box structure, but the outer box structure is mostly simple, with only air windows set on the side and / or bottom as the collection port. When the wind is small, the air intake in the outer box is small, and the monitoring information will have obvious lag. When the wind is strong, the air flow rate in the outer box will increase, which will cause obvious data errors in the monitoring information.

[0004] Therefore, it is necessary to design an atmospheric pollutant monitoring device that is efficient, accurate, stable, and less affected by external factors to meet market demand and environmental protection requirements. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an atmospheric pollutant monitoring device to solve the shortcomings of the above-mentioned background technology.

[0006] The technical problem solved by the utility model is achieved by the following technical solutions:

[0007] An atmospheric pollutant monitoring device comprises a sampling structure and a monitoring device host;

[0008] The sampling structure is a flat box, the top surface of which is formed with a positive pressure fan, and the four sides of the box are formed with air windows; the air window has a supporting frame, and a plurality of grid plates arranged at intervals in the horizontal direction are arranged in the supporting frame, the upper part of the grid plates is assembled in the supporting frame through a rotating shaft, and the plurality of grid plates fall down by their own weight when no force is applied to close the air window; when the positive pressure fan generates positive pressure inside the sampling structure, the plurality of grid plates rotate around the rotating shaft to adjust the opening of the air window;

[0009] The sampling structure is equipped with a combination of sensors for collecting atmospheric parameters and pollutant data;

[0010] The monitoring device host is fixedly connected to the lower part of the sampling structure, and the sensor assembly is electrically connected to the monitoring device host.

[0011] As a further limitation, the device also includes an outer box, the sampling structure and the monitoring device host are assembled in the outer box, and the position of the device is fixed by arranging a standing structure at the bottom of the outer box or arranging a hanging structure at the top of the outer box;

[0012] The sampling structure and the monitoring device host are provided with matching horizontal transverse plug-in parts on the opposite surfaces, and the sampling structure and the monitoring device host are assembled together through the horizontal transverse plug-in parts; the outer box body has a lateral open surface, and horizontal vertical plug-in parts matching the sampling structure and the monitoring device host are formed on the lower surface of the top surface and the inner upper surface of the outer box body, respectively, and the assembled sampling structure and the monitoring device host are plugged and assembled on the lateral open surface of the outer box body through the horizontal vertical plug-in parts;

[0013] The outer box body is provided with a rain cap at the upper part corresponding to the position of the positive pressure fan;

[0014] The sampling structure and the outer box are both detachable combined assembly structures.

[0015] As a further limitation, the sampling structure has a filter formed on the surface of the positive pressure fan.

[0016] As a further limitation, the sampling structure has an aspect ratio of 1:1 and an aspect ratio of 3:1 to 6:1.

[0017] As a further limitation, the sensor combination is any combination of a temperature sensor, a humidity sensor, a wind speed sensor, an air pressure sensor, a pollutant concentration sensor, and a particulate matter concentration sensor.

[0018] As a further limitation, the grid plate is formed in one step by an engineering plastic thin plate or a lightweight aluminum plate or a lightweight aluminum alloy plate.

[0019] As a further limitation, the air window is also provided with an outer window cover plate which can be opened and closed on the outer side of the corresponding grid plate position.

[0020] Beneficial effects: The air pollutant monitoring device of the utility model has the characteristics of compact structure, reasonable design, convenient use and maintenance, and can be widely used in urban air quality monitoring, industrial pollution source monitoring, environmental protection research and other fields. It uses a positive pressure fan to provide the power for the atmosphere to flow into the sampling structure. It can flexibly adjust the sampling volume according to needs by adjusting the power of the positive pressure fan, and can effectively reduce the impact of the external environment on the monitoring data. It can adapt to various complex environments and obtain measurement data with high accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the state of a preferred embodiment of the utility model.

[0022] Among them: 1. Rain cap assembly seat; 2. Rain cap; 3. Outer box body; 4. Outer window cover; 5. Outer window cover handle; 6. Top hollow hole; 7. Filter; 8. Positive pressure fan; 9. Upper horizontal vertical plug-in part; 10. Support frame; 11. Side hollow hole; 12. Grid; 13. Sampling cavity; 14. Sensor probe; 15. Sensor probe assembly seat; 16. Sampling structure shell; 17. Horizontal transverse plug-in part; 18. Electrical contact; 19. Monitoring equipment host; 20. Lower horizontal vertical plug-in part; 21. Vertical assembly frame. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0024] See also Figure 1 A preferred embodiment of an atmospheric pollutant monitoring device, in this embodiment, the atmospheric pollutant monitoring device includes a sampling structure that can be assembled, a monitoring device host 19 and an outer box 3, the above three components are independently formed and can be assembled when used, and the assembled structure is as follows Figure 1 shown.

[0025] As a detachable assembly structure, the sampling structure is formed with a downwardly protruding horizontal transverse plug-in portion 17 on the bottom surface of the sampling structure shell plate 16, and the monitoring device host 19 is formed with a first slot matching the horizontal transverse plug-in portion 17 on the top surface of the shell. Through the cooperation of the first slot and the horizontal transverse plug-in portion 17, the upper and lower overlapping assembly of the monitoring device host 19 and the sampling structure can be realized. The outer box body 3 is formed of a galvanized steel structural plate as an outer protective structure. The front of the outer box body 3 is an open surface, and an upper horizontal vertical plug-in portion 9 and a lower horizontal vertical plug-in portion 20 are respectively formed on both sides of the top surface and the middle position of the bottom surface in the box body. The top surface of the sampling structure shell plate 16 is formed with two second slots matching the upper horizontal vertical plug-in portion 9, and the monitoring device host 19 is formed with a third slot matching the lower horizontal vertical plug-in portion 20 on the bottom surface.

[0026] During assembly, the sampling structure is first assembled as a whole on the top surface of the monitoring device main body 19 through the horizontal transverse insertion part 17. After the assembly is completed, it is directly inserted from the open surface of the outer box body 3 through the upper horizontal vertical insertion part 9 and the lower horizontal vertical insertion part 20, and the assembly of the equipment is completed after it is inserted into place.

[0027] As an auxiliary structure, a vertical assembly stand 21 is provided on the bottom surface of the outer box 3 in this embodiment, and the assembled device can be placed upright at a selected position and kept fixed by the vertical assembly stand 21, so that the atmospheric pollutants in the area can be monitored by the combination of the sampling structure and the monitoring device host 19. In addition, a rain cap assembly position is also provided on the upper part of the outer box 3, and the rain cap 2 is assembled by using the rain cap assembly seat 1 at the rain cap assembly position, so that the device can be placed outdoors and prevented from rain and snow entering the sampling cavity 13 of the sampling structure, thereby interfering with the monitoring data; and when installed indoors, the structure of the rain cap 2 can also be removed.

[0028] In this embodiment, as an atmospheric collection mechanism, the sampling structure as a whole is a flat box, with an aspect ratio of 1:1 and a length-to-height ratio of 4:1. The outer contour of the sampling structure is a sampling structure shell plate 16 formed of a galvanized steel plate, and the box cavity is used as the sampling cavity 13. The sampling structure shell plate 16 is provided with an air inlet on the top surface, and the outer box body 3 is provided with a top surface hollow hole 6 at the air inlet position corresponding to the sampling structure shell plate 16. The sampling structure is provided with a positive pressure fan 8 on the inner side of the air inlet position of the sampling structure shell plate 16, and the bottom surface of the positive pressure fan 8 passes through a filter 7. When the positive pressure fan 8 is in operation, it is used to send external air from the top into the sampling cavity 13, and filter out some large particles of floating objects such as hair, flying sand, and animal and plant debris through the filter 7 during the sending process.

[0029] Air windows are formed on the four sides of the sampling structure shell plate 16. Correspondingly, the outer box body 3 is formed with side hollow holes 11 corresponding to the aforementioned air windows on the other three sides except the open surface to serve as air inlets of the air windows. The air window structure style on the four sides of the sampling structure is the same, all of which include a support frame 10 arranged on the inner side of the air window, and three grid plates 12 arranged at a transverse interval are arranged in the support frame 10. The three grid plates 12 are arranged up and down, and are assembled on the side walls of the support frame 10 on both sides through a rotating shaft at the upper part of each grid plate 12. The grid plate 12 is made of an engineering plastic thin plate or a lightweight aluminum plate or a lightweight aluminum alloy plate formed in one step. As a lightweight plate body, the grid plate 12 can fall by its own weight when not under force, and can close the air window when falling. When positive pressure is generated in the sampling chamber 13 due to the action of the positive pressure fan 8, multiple grid plates 12 can realize the opening of the air window by rotating around the rotating shaft, thereby realizing the pressure regulation of the space in the sampling chamber 13, thereby ensuring the stability of the gas flow in the sampling chamber 13, ensuring the accuracy of the implementation data while reducing data errors.

[0030] When the monitoring device is assembled in an outdoor area under natural conditions, the gratings 12 in the corresponding air windows can also be assembled in an outer edge stacking manner as shown in the figure. Under this assembly method, the lower edge of the upper grating 12 is against the outer side of the rotating shaft of the lower grating 12. At this time, the grating 12 combination on the inner side of the supporting frame 10 can be locked when there is wind outside, and air intake sampling can only be achieved through the positive pressure fan 8, which has better stability.

[0031] The sampling structure is formed with a sensor probe assembly seat 15 on the bottom surface of the sampling cavity 13, and the sensor probe assembly seat 15 is equipped with a sensor probe 14 for collecting atmospheric parameters and pollutant data. These sensor probes 14 can be set as a combination of multiple sensors according to actual sampling needs, and can be a combination of gas parameter sensors such as temperature sensors, humidity sensors, wind speed sensors, air pressure sensors, pollutant concentration sensors, and particulate matter concentration sensors. The sensor probe 14 is provided with a data transmission line in the sensor probe assembly seat 15, and the data transmission line is formed with a pair of electrical contacts 18 on the opposite surface position of the horizontal transverse insertion part 17. Among the electrical contacts 18 arranged in pairs, the electrical contacts 18 located on the surface of the monitoring device host 19 are assembled and connected with the functional unit in the monitoring device host 19. When the sampling structure and the monitoring device host 19 are assembled as a whole using the horizontal transverse insertion part 17, the corresponding sensor probe 14 is electrically connected to the monitoring device host 19, so as to perform power supply and data exchange through the monitoring device host 19.

[0032] In this embodiment, the monitoring device host 19 can be powered by a power cord or a detachable rechargeable battery. In addition, in addition to the functional electrical unit for realizing the corresponding atmospheric pollutant monitoring function, the monitoring device host 19 is also provided with a remote communication module. The remote device (such as a mobile phone) can access the monitoring device host 19 through the remote communication module after authorization and obtain the real-time data in the monitoring device host 19. In addition, when the monitoring device host 19 has abnormal data, it can also send a pre-tightening to the remote device through the remote communication module.

[0033] The atmospheric pollutant monitoring device of this embodiment shows good performance in practical applications. The positive pressure fan 8 provides power for the atmosphere to flow into the sampling chamber 13 of the sampling structure, so the sampling volume can be flexibly adjusted as needed, and the impact of the external environment on the monitoring data can be effectively reduced. The device has a compact structure, reasonable design, convenient use and maintenance, and can be widely used in urban air quality monitoring, industrial pollution source monitoring, environmental protection research and other fields. In various complex environments, the atmospheric pollutant monitoring device of this embodiment can obtain measurement data with high accuracy and stability.

[0034] In addition, in this embodiment, the sampling structure is equipped with a special outer window cover 4 with an outer window cover handle 5 at each side air window position. The outer window cover 4 can close the air window on the corresponding side, thereby effectively improving the flexibility of the device.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An atmospheric pollutant monitoring device, characterized in that: Including sampling structure and monitoring equipment host; The sampling structure is a flat box, the top surface of which is formed with a positive pressure fan, and the four sides of the box are formed with air windows; the air window has a supporting frame, and a plurality of grid plates arranged at intervals in the horizontal direction are arranged in the supporting frame, the upper part of the grid plates is assembled in the supporting frame through a rotating shaft, and the plurality of grid plates fall down by their own weight when no force is applied to close the air window; when the positive pressure fan generates positive pressure inside the sampling structure, the plurality of grid plates rotate around the rotating shaft to adjust the opening of the air window; The sampling structure is equipped with a combination of sensors for collecting atmospheric parameters and pollutant data; The monitoring device host is fixedly connected to the lower part of the sampling structure, and the sensor assembly is electrically connected to the monitoring device host.

2. The air pollutant monitoring device according to claim 1, characterized in that: The device also includes an outer box body, in which the sampling structure and the monitoring equipment host are assembled, and the position of the device is fixed by arranging a standing structure at the bottom of the outer box body or a hanging structure at the top of the outer box body.

3. The air pollutant monitoring device according to claim 2, characterized in that: The sampling structure and the monitoring device host are provided with matching horizontal transverse insertion parts on the opposite surfaces, and the sampling structure and the monitoring device host are assembled in combination through the horizontal transverse insertion parts; the outer box body has a lateral open surface, and horizontal vertical insertion parts matching the sampling structure and the monitoring device host are respectively formed on the lower surface of the top surface and the inner upper surface of the outer box body, and the combined and assembled sampling structure and the monitoring device host are inserted and assembled on the lateral open surface of the outer box body through the horizontal and vertical insertion parts.

4. The air pollutant monitoring device according to claim 2, characterized in that: The outer box body is provided with a rain cap at the upper part of the position corresponding to the positive pressure fan.

5. The air pollutant monitoring device according to claim 2, characterized in that: The sampling structure and the outer box are both detachable combined assembly structures.

6. The air pollutant monitoring device according to claim 1, characterized in that: The sampling structure is formed with a filter screen on the surface of the positive pressure fan.

7. The air pollutant monitoring device according to claim 1, characterized in that: The sampling structure has an aspect ratio of 1:1 and a length-to-height ratio of 3:1 to 6:

1.

8. The air pollutant monitoring device according to claim 1, characterized in that: The sensor combination is any combination of a temperature sensor, a humidity sensor, a wind speed sensor, an air pressure sensor, a pollutant concentration sensor, and a particle concentration sensor.

9. The air pollutant monitoring device according to claim 1, characterized in that: The grid plate is an engineering plastic thin plate or a light aluminum plate or a light aluminum alloy plate formed in one step.

10. The air pollutant monitoring device according to claim 1, characterized in that: The air window is also provided with an outer window cover plate which can be opened and closed at the outer side of the corresponding grid plate position.

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