CN211603116U

CN211603116U - Air quality monitoring system

Info

Publication number: CN211603116U
Application number: CN202020178344.2U
Authority: CN
Inventors: 刘明辉; 夏凯; 张斌; 杨明; 赵耀
Original assignee: Suzhou Yuanhuida Intelligent Technology Co ltd
Current assignee: Suzhou Yuanhuida Intelligent Technology Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-09-29
Anticipated expiration: 2030-02-18

Abstract

The utility model relates to an air quality monitoring system, which comprises a case, a isokinetic sampling head arranged at the top of the case, a refrigeration module arranged at one side of the case, an exhaust hole arranged on the case, a data acquisition board, a laser type particle detection module, an air detection module, a sampling pump and a temperature controller, wherein the data acquisition board, the laser type particle detection module, the air detection module, the sampling pump and the temperature controller are respectively arranged in the case; the data acquisition board is respectively in line connection with the laser type particulate matter detection module and the air detection module; the temperature controller is connected with the refrigeration module through a wire; the utility model discloses because isokinetic sampling head, laser formula particulate matter detection module, sampling pump, empty gas detection survey module connect gradually through the trachea for the air can not spread, can effectively and accurate detect the air of gathering, and refrigeration module sets up in case one side, can reduce the temperature of quick-witted incasement, makes the sensor physical nature trouble that temperature drift can not appear.

Description

Air quality monitoring system

Technical Field

The utility model relates to an environment monitoring equipment field refers in particular to an air quality monitoring system.

Background

With the continuous development of social economy, the problems of air pollution and air quality are more and more concerned by people; the air quality detector is used for acquiring the current overall air quality condition, so that corresponding parameters and the like can be given to bring great advantages for air quality treatment. As disclosed in the prior art 201620074226.0, in a high temperature state, the sensor is prone to physical failure due to temperature drift, and data compensation alone is not preferable, so that the result is prone to generate deviation; as disclosed in 201910384588.8 of the prior art, the factory boundary monitor for different odor source factories comprises a constant temperature gas pool, wherein the constant temperature gas pool comprises semiconductor refrigeration sheets, radiating fins, a radiating fan and a temperature sensor, although the constant temperature of the constant temperature gas pool can be realized, the constant temperature gas pool is arranged in a box body, and the generated heat is discharged through heat exchange ports and heat exchange fans at two sides of the box body, so that the overall weight and the production cost are greatly increased; in addition, although the pump suction type air sampling structure is adopted in the prior art, air can diffuse around after entering the case, so that the sensor cannot effectively detect components in the air, and the detection result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air quality monitoring system for overcoming prior art's not enough.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an air quality monitoring system comprises a case, a constant-power sampling head arranged at the top of the case, a refrigeration module arranged at one side of the case and used for reducing the temperature in the case, an exhaust hole arranged on the case, a data acquisition board, a laser type particle detection module, an air detection module, a sampling pump and a temperature controller, wherein the data acquisition board, the laser type particle detection module, the air detection module, the sampling pump and the temperature controller are respectively arranged in the case; the data acquisition board is respectively in line connection with the laser type particulate matter detection module and the air detection module; the temperature controller is connected with the refrigeration module through a wire; the isokinetic sampling head, the laser type particle detection module, the sampling pump and the air detection module are sequentially connected through an air pipe; the air detection module comprises a fixing frame, an O3 sensor, a CO sensor, an NO2 sensor, an SO2 sensor and a TVOC sensor which are respectively installed on the fixing frame and are sequentially connected through an air pipe.

Preferably, sealing rings are arranged between the air inlet end and the air outlet end of the O3 sensor, the CO sensor, the NO2 sensor, the SO2 sensor and the TVOC sensor and between the air pipe and the air outlet end of the TVOC sensor.

Preferably, a wireless communication module is further arranged in the case; the data acquisition board can remotely send data to the monitoring platform through the wireless communication module.

Preferably, a switching power supply and an air switch are further arranged in the case; the input end of the switch power supply is connected with an external power line, and the output end of the switch power supply is connected with the input end of the air switch; the output end of the air switch is respectively in line connection with the refrigeration module, the data acquisition board, the laser type particle detection module, the air detection module, the sampling pump and the temperature controller.

Preferably, a filter screen is arranged at a sampling port of the isokinetic sampling head.

Preferably, a protective cover is further arranged on the side face of the case on the outer side of the refrigeration module.

Preferably, the case comprises a case body and a case door; one side of the box door is connected with the box body through a hinge, and the other side of the box door is provided with a door lock; and a waterproof rubber strip is also arranged at the joint of the box body and the box door.

Preferably, the back of the box body is provided with at least two guide rails which are placed in parallel.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model has the advantages that the isokinetic sampling head, the laser type particle detection module, the sampling pump and the air detection module are connected in sequence through the air pipe, so that the air can not be diffused, and the collected air can be effectively and accurately detected;

2. the utility model can reduce the temperature in the case under the high temperature state by arranging the refrigeration module at one side of the case, so that the sensor can not have the physical fault of temperature drift, and more accurate numerical value can be obtained;

3. the utility model discloses because the refrigeration module is from taking the fan, consequently does not need extra heat transfer mouth and heat transfer fan, greatly reduced whole weight and manufacturing cost.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic front structural view of an air quality monitoring system according to the present invention;

fig. 2 is a schematic back structure diagram of the air quality monitoring system of the present invention;

fig. 3 is an internal schematic view of the air quality monitoring system of the present invention;

fig. 4 is the utility model discloses well empty gas detection surveys module's schematic structure.

Wherein: 1. a box body; 2. an isokinetic sampling head; 3. a box door; 4. a protective cover; 5. a guide rail; 6. a laser type particulate matter detection module; 7. a wireless communication module; 8. a data acquisition board; 9. a refrigeration module; 10. a sampling pump; 11. an air switch; 12. a switching power supply; 13. a temperature controller; 14. an air detection module; 141. a fixed mount; 142. an O3 sensor; 143. a CO sensor; 144. a NO2 sensor; 145. an SO2 sensor; 146. a TVOC sensor; 15. the trachea.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1-4 show an air quality monitoring system according to the present invention, which comprises a case, a isokinetic sampling head 2 disposed on the top of the case, a refrigeration module 9 disposed on one side of the case for reducing the temperature in the case, an exhaust hole disposed on the case, a data acquisition board 8, a laser type particle detection module 6, an air detection module 14, a sampling pump 10, and a temperature controller 13, all of which are disposed in the case; the data acquisition board 8 is respectively in line connection with the laser type particulate matter detection module 6 and the air detection module 14; the temperature controller 13 is in line connection with the refrigeration module 9; the air inlet end of the laser type particle detection module 6 is communicated with the isokinetic sampling head 2 through an air pipe 15, and the air outlet end of the laser type particle detection module is communicated with the air inlet end of the sampling pump 10 through the air pipe 15; the air outlet end of the sampling pump 10 is communicated with an air detection module 14 through an air pipe 15; the air detection module 14 comprises a fixing frame 141, an O3 sensor 142, a CO sensor 143, an NO2 sensor 144, an SO2 sensor 145 and a TVOC sensor 146 which are respectively installed on the fixing frame 141 and are sequentially connected through an air pipe 15; when in work: the method comprises the steps that outside air (gas to be detected) enters an isokinetic sampling head 2 under the action of a sampling pump 10, then passes through a laser type particle detection module 6 to detect the content of particles in the air, sends a detection result to a data acquisition board 8, passes through the sampling pump 10, and finally is sent to an air detection module 14, passes through an O3 sensor 142, a CO sensor 143, an NO2 sensor 144, an SO2 sensor 145 and a TVOC sensor 146 in sequence, is discharged from the TVOC sensor 146, and sends the detection result to the data acquisition board 8, wherein the sequence of the O3 sensor 142, the CO sensor 143, the NO2 sensor 144, the SO2 sensor 145 and the TVOC sensor 146 can be adjusted, and the sensors can also be replaced to detect other components in the air, such as ammonia gas, hydrogen sulfide, trimethylamine, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and the like; when the temperature controller is in a high-temperature state, the temperature controller 13 controls the refrigeration module 9 to work, so that the temperature in the case is reduced, the physical fault of temperature drift of the sensor cannot occur, the sensor is in a standby mode at ordinary times, the power consumption of the whole machine is reduced, and the temperature controller is more intelligent, energy-saving and environment-friendly; the isokinetic sampling head 2 is a sampling head of an atmospheric particulate online monitor disclosed in the prior art 201520850814.4; the refrigeration module 9 is also of the prior art, such as the electronic refrigeration ceiling system and the electronic refrigeration module thereof disclosed in prior art 201520594079.5.

Further, sealing rings are arranged between the air inlet end and the air outlet end of the O3 sensor 142, the CO sensor 143, the NO2 sensor 144, the SO2 sensor 145 and the TVOC sensor 146 and the air pipe 15, SO that the sealing performance is improved, and the measurement is more accurate.

Further, a wireless communication module 7 is also arranged in the case; the data acquisition board 8 can remotely send data to the monitoring platform through the wireless communication module 7, and the purpose of remote monitoring can be achieved.

Further, a switching power supply 12 and an air switch 11 are also arranged in the case; the input end of the switching power supply 12 is connected with an external power line, and the output end of the switching power supply is connected with the input end of the air switch 11; air switch 11's output respectively with refrigeration module 9, data acquisition board 8, laser formula particulate matter detection module 6, air detection module 14,

sampling pump

10, 13 line connections of temperature controller, wherein switching power supply 12 can convert the relatively poor former ecological power of electric energy quality, like mains power supply or battery power into the higher direct current voltage of quality that satisfies the equipment requirement, air switch 11 plays the circuit safety effect.

Further, the sampling port of the isokinetic sampling head 2 is provided with a filter screen, so that the filter effect is achieved, and foreign matters such as mosquitoes are prevented from entering the isokinetic sampling head 2.

Further, the side of the case is provided with a protective cover 4 outside the refrigeration module 9, so that the refrigeration module 9 can be prevented from colliding with foreign objects, and the case has the functions of wind prevention and rain prevention.

Further, the case comprises a case body 2 and a case door 3; one side of the box door 3 is connected with the box body 2 through a hinge, and the other side of the box door is provided with a door lock; and a waterproof adhesive tape is arranged at the joint of the box body 2 and the box door 3, so that the sealing and waterproof effects are achieved.

Furthermore, the back of the box body 2 is at least provided with two guide rails 5 which are arranged in parallel, so that the box body can be conveniently installed in a matching way with a vertical rod, an iron tower and the like.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. An air quality monitoring system, characterized in that: the constant-power sampling device comprises a case, a constant-power sampling head arranged at the top of the case, a refrigeration module arranged on one side of the case and used for reducing the temperature in the case, an exhaust hole arranged on the case, a data acquisition board, a laser type particle detection module, an air detection module, a sampling pump and a temperature controller, wherein the data acquisition board, the laser type particle detection module, the air detection module, the sampling pump and the temperature controller are respectively arranged in the case; the data acquisition board is respectively in line connection with the laser type particulate matter detection module and the air detection module; the temperature controller is connected with the refrigeration module through a wire; the isokinetic sampling head, the laser type particle detection module, the sampling pump and the air detection module are sequentially connected through an air pipe; the air detection module comprises a fixing frame, an O3 sensor, a CO sensor, an NO2 sensor, an SO2 sensor and a TVOC sensor which are respectively installed on the fixing frame and are sequentially connected through an air pipe.

2. The air quality monitoring system of claim 1, wherein: and sealing rings are arranged between the air inlet end and the air outlet end of the O3 sensor, the CO sensor, the NO2 sensor, the SO2 sensor and the TVOC sensor and between the air pipe and the air outlet end of the TVOC sensor.

3. The air quality monitoring system according to claim 1 or 2, characterized in that: a wireless communication module is also arranged in the case; the data acquisition board can remotely send data to the monitoring platform through the wireless communication module.

4. The air quality monitoring system of claim 3, wherein: a switching power supply and an air switch are also arranged in the case; the input end of the switch power supply is connected with an external power line, and the output end of the switch power supply is connected with the input end of the air switch; the output end of the air switch is respectively in line connection with the refrigeration module, the data acquisition board, the laser type particle detection module, the air detection module, the sampling pump and the temperature controller.

5. The air quality monitoring system of claim 4, wherein: and a filter screen is arranged at a sampling port of the isokinetic sampling head.

6. The air quality monitoring system of claim 5, wherein: and a protective cover is arranged on the side surface of the case outside the refrigeration module.

7. The air quality monitoring system of claim 6, wherein: the case comprises a case body and a case door; one side of the box door is connected with the box body through a hinge, and the other side of the box door is provided with a door lock; and a waterproof rubber strip is also arranged at the joint of the box body and the box door.

8. The air quality monitoring system of claim 7, wherein: the back of the box body is at least provided with two guide rails which are arranged in parallel.