CN211263368U - Air detection device - Google Patents
Air detection device Download PDFInfo
- Publication number
- CN211263368U CN211263368U CN201922024108.5U CN201922024108U CN211263368U CN 211263368 U CN211263368 U CN 211263368U CN 201922024108 U CN201922024108 U CN 201922024108U CN 211263368 U CN211263368 U CN 211263368U
- Authority
- CN
- China
- Prior art keywords
- air
- cavity
- air inlet
- detection
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an empty gas detection surveys device, which comprises a housin, be equipped with the air inlet cavity of gas intercommunication in the casing, detect cavity and air outlet cavity, be equipped with air inlet and gas outlet on the casing, the position of aiming at the air inlet in the air inlet cavity is equipped with and is used for inhaling the air intake fan of air inlet cavity with the ambient air, the one end that air intake fan was kept away from to the air inlet cavity is equipped with the first air vent that can communicate detection cavity, be equipped with at least gas detector in the detection cavity, one side that first air vent was kept away from to the detection cavity is equipped with the second air vent that can communicate air outlet cavity, the position of aiming at the gas outlet in the air outlet cavity is equipped with the fan of giving vent to anger that is used for with gas outgoing. It has the following advantages: the detection precision and effect are improved, the structure is novel and simple, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to an air quality detection device specifically indicates an empty gas detection surveys device that can improve air quality detection precision.
Background
The air detector can detect particulate matters and CO in the air2The temperature and humidity, the amount of formaldehyde and the like. Most all are passive types to gather at present empty gas detection survey class product, and do not have reasonable wind channel setting, and when external environment changed, can't in time enter into the sensor, perhaps when external environment takes place the transient local change in the twinkling of an eye and is caught just by air detector, then the oscillation of detection data can appear, and is unstable, and this detection data does not have the referential. The existing air detector is also provided with a small fan to actively suck ambient air into the detector, the small fan and the sensor are simply assembled, the problems of air channels, flow rate and the like are not considered, and the detection precision and the detection effect of the detector are still limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides an empty gas detection surveys device that can improve air quality detection precision, it has overcome in the background art the not enough of prior art.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an empty gas detection surveys device, which comprises a housin, be equipped with the air inlet cavity of gas intercommunication in the casing, detect cavity and air outlet cavity, be equipped with air inlet and gas outlet on the casing, the position of aiming at the air inlet in the air inlet cavity is equipped with the air intake fan that is used for inhaling the air inlet cavity with the outside air, the one end that the air intake cavity kept away from air intake fan is equipped with the first air vent that can communicate the detection cavity, be equipped with at least gas detector in the detection cavity, one side that the detection cavity kept away from first air vent is equipped with the second air vent that can communicate air outlet cavity, the position of aiming at the gas outlet in the air outlet cavity is equipped with the fan of giving vent to anger that is used for with gas outgoing.
In one embodiment: the air inlet, the first vent hole and the second vent hole are alternately arranged in the upper direction and the lower direction in the space position of the shell.
In one embodiment: the air inlet cavity is internally provided with an air mixing cavity, one end of the air mixing cavity is provided with an air inlet, the other end of the air mixing cavity is provided with the first vent hole, the air inlet fan is arranged at the air inlet, the air inlet fan sucks air flow blown out of the air mixing cavity and forms an included angle with the wall of the air mixing cavity, and the first vent hole is arranged at the position of the side wall of the other end of the air flow direction of the air mixing cavity.
In one embodiment: the volume of the gas mixing cavity is larger than the flow of the air inlet fan.
In one embodiment: the gas mixing cavity is cuboid, and the air inlet is formed in the upper surface of one end of the gas mixing cavity.
In one embodiment: the detection cavity is cuboid, and the first vent and the second vent are arranged in opposite angles of the cuboid.
In one embodiment: the gas detector is arranged in the detection cavity body at a diagonal position perpendicular to the connecting line of the first vent and the second vent.
In one embodiment: including a CO2 gas detector and a PM2.5 gas detector.
In one embodiment: the housing includes a base shell and an upper cover covering the base shell, the air inlet and air outlet being provided in the upper cover and formed by a plurality of apertures which are gathered.
In one embodiment: the air inlet fan is arranged parallel to the bottom surface of the air mixing cavity, and the air outlet fan is arranged perpendicular to the bottom surface of the air outlet cavity.
Compared with the background technology, the technical scheme has the following advantages:
1. the gas treated by the gas inlet cavity or the gas mixing cavity is the gas which can truly reflect the real air quality of the surroundings, so that when the external environment is accidentally disturbed, the device can filter the accidental disturbance without causing sudden huge fluctuation of the detection result. Similarly, when the air of the external environment has small-range oscillation fluctuation without reference significance, the detection data curve is very smooth, almost a straight line and very stable through the device. When the external environment is continuously and truly changed, the detection data can be timely changed and followed by the device. The air quality result detected by the device can truly and objectively reflect the current air quality, so the detection precision is high and the effect is good.
2. The device has simple and novel structure and low cost, and can be applied to the detection of various gases or particles.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the air detection device.
Fig. 2 is an exploded view of the air detection unit.
Fig. 3 is an internal structure view of the air detection device.
Detailed Description
Referring to fig. 1 to 3, an air detecting device includes a housing 10, an air inlet cavity 11 disposed in the housing 10, the detection cavity 12 and the air outlet cavity 13, the casing 10 is provided with an air inlet 101 and an air outlet 102, the position of the air inlet cavity 11, which is aligned with the air inlet 101, is provided with an air inlet fan 20 for sucking outside air into the air inlet cavity 11, the end of the air inlet cavity 11, which is far away from the air inlet fan 20, is provided with a first vent hole 111 which can be communicated with the detection cavity 12, the detection cavity 12 is provided with at least one air detector 30, one side of the detection cavity 12, which is far away from the first vent hole 111, is provided with a second vent hole 121 which can be communicated with the air outlet cavity 13, the position of the air outlet cavity 13, which is aligned with the air outlet 102, is provided with an air outlet fan 40 for discharging air out of the air cavity 13, and the air outlet fan 40 and the second vent hole 121.
The air inlet 101, the first vent hole 111, and the second vent hole 121 are alternately arranged in the upper and lower directions in the spatial position of the housing 10, so that the gas can diffuse into the whole cavity on the propagation path and further be fully mixed uniformly, the gas detector 30 can detect the gas (fully mixed uniformly gas) which truly reflects the air quality, and the detection result is more true and effective. In this embodiment, the first vent hole 111 is disposed at a lower position of the housing 10, and the second vent hole 121 is disposed at an upper position of the housing 10.
Preferably, in order to better mix the gas in the gas inlet cavity, a gas mixing cavity 14 is disposed in the gas inlet cavity 11, an air inlet 141 is disposed at one end of the gas mixing cavity 14, the first vent hole 111 is disposed at the other end of the gas mixing cavity, the gas inlet fan 20 is disposed at the air inlet 141, an included angle is formed between the airflow sucked into and blown out of the gas mixing cavity 14 by the gas inlet fan 30 and the wall of the gas mixing cavity 14, and the first vent hole 111 is disposed at the other end of the sidewall of the gas mixing cavity 14 in the airflow direction. In this embodiment, the inlet fan 20 is disposed parallel to the bottom surface of the gas mixing chamber 14, and the outlet fan 40 is disposed perpendicular to the bottom surface of the outlet chamber 13.
In this embodiment, the gas mixing cavity 14 is a cuboid, the air inlet 141 is formed in the upper surface of one end of the gas mixing cavity 14, after the gas is sucked by the air inlet fan 20, the blown air flow is perpendicular to the bottom wall of the cuboid gas mixing cavity 14 and is collided and scattered on the bottom wall, and then the air flow turns around and goes forward along the length direction of the cuboid gas mixing cavity 14 to be mixed and stirred uniformly until the air flow reaches the first air vent 111 on the side wall of the other end of the gas mixing cavity and flows out to the detection cavity. Therefore, the gas is mixed in the gas mixing cavity 14 in the gas inlet cavity 11, so that the gas detector in the subsequent detection cavity can detect the mixed gas (the gas which truly reflects the air quality), and a detection result which can truly reflect the air quality is obtained.
In order to allow sufficient time for the gas to mix uniformly in the mixing chamber 14, the volume of the gas mixing chamber 14 is greater than the flow rate of the intake fan 20.
In this embodiment, the detection chamber 12 is rectangular parallelepiped, and the first vent 111 and the second vent 121 are disposed diagonally to each other. The gas detector 30 is arranged on the diagonal line perpendicular to the connecting line of the first vent 111 and the second vent 121 in the detection cavity 12, so that the gas detector 30 is positioned on the path through which gas flows, and can measure the gas flowing in real time.
In this embodiment, the plurality of gas detectors 30 includes a CO2 gas detector and a PM2.5 gas detector.
The case 10 includes a bottom case 110 and an upper cover 120 covering the bottom case 110, and the air inlet 101 and the air outlet 102 are provided on the upper cover 120 and formed of a plurality of gathered pores.
Because the air flow entering the shell 10 is slowed down in flow speed and mixed and stirred uniformly through the air inlet cavity 11 (or the air mixing cavity 14), and then enters the detection cavity 12 for detection, the air processed through the air inlet cavity 11 or the air mixing cavity 14 is the air which can really reflect the real air quality around, therefore, when the external environment is disturbed accidentally, the device can filter the accidental disturbance, and the detection result cannot fluctuate suddenly and greatly. Similarly, when the air of the external environment has small-range oscillation fluctuation without reference significance, the detection data curve is very smooth, almost a straight line and very stable through the device. When the external environment is continuously and truly changed, the detection data can be timely changed and followed by the device. The air quality result detected by the device can truly and objectively reflect the current air quality, so the detection precision is high and the effect is good.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (10)
1. An empty gas detection surveys device which characterized in that: the air inlet detection device comprises a housing, an air inlet cavity body which is communicated with air is arranged in the housing, a detection cavity body and an air outlet cavity body, an air inlet and an air outlet are arranged on the housing, an air inlet fan which is used for sucking external air into the air inlet cavity body is arranged at the position, aligned with the air inlet, of the air inlet cavity body, a first air vent which can be communicated with the detection cavity body is arranged at one end, away from the air inlet fan, of the air inlet cavity body, at least one air detector is arranged in the detection cavity body, a second air vent which can be communicated with the air outlet cavity body is arranged at one side, away from the first air vent, of the detection cavity body, an air outlet fan which is used for discharging air.
2. An air detection unit as claimed in claim 1, wherein: the air inlet, the first vent hole and the second vent hole are alternately arranged in the upper direction and the lower direction in the space position of the shell.
3. An air detection unit as claimed in claim 2, wherein: the air inlet cavity is internally provided with an air mixing cavity, one end of the air mixing cavity is provided with an air inlet, the other end of the air mixing cavity is provided with the first vent hole, the air inlet fan is arranged at the air inlet, the air inlet fan sucks air flow blown out of the air mixing cavity and forms an included angle with the wall of the air mixing cavity, and the first vent hole is arranged at the position of the side wall of the other end of the air flow direction of the air mixing cavity.
4. An air detection unit according to claim 3, wherein: the volume of the gas mixing cavity is larger than the flow of the air inlet fan.
5. An air detection unit according to claim 3, wherein: the gas mixing cavity is cuboid, and the air inlet is formed in the upper surface of one end of the gas mixing cavity.
6. An air detection unit according to claim 3, wherein: the detection cavity is cuboid, and the first vent and the second vent are arranged in opposite angles of the cuboid.
7. An air detection unit according to claim 6, wherein: the gas detector is arranged in the detection cavity body at a diagonal position perpendicular to the connecting line of the first vent and the second vent.
8. An air detection unit according to claim 1 or 6, wherein: including a CO2 gas detector and a PM2.5 gas detector.
9. An air detection unit as claimed in claim 1, wherein: the housing includes a base shell and an upper cover covering the base shell, the air inlet and air outlet being provided in the upper cover and formed by a plurality of apertures which are gathered.
10. An air detection unit according to claim 5, wherein: the air inlet fan is arranged parallel to the bottom surface of the air mixing cavity, and the air outlet fan is arranged perpendicular to the bottom surface of the air outlet cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024108.5U CN211263368U (en) | 2019-11-21 | 2019-11-21 | Air detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922024108.5U CN211263368U (en) | 2019-11-21 | 2019-11-21 | Air detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211263368U true CN211263368U (en) | 2020-08-14 |
Family
ID=71990181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922024108.5U Active CN211263368U (en) | 2019-11-21 | 2019-11-21 | Air detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211263368U (en) |
-
2019
- 2019-11-21 CN CN201922024108.5U patent/CN211263368U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11360002B2 (en) | Portable air sampling device | |
| US12005384B2 (en) | Air quality monitoring and control system | |
| US20200271565A1 (en) | Particulate matter sensor device | |
| JPH09500968A (en) | Particle sensor with low pressure drop airflow system | |
| US20190032951A1 (en) | Ventilating device | |
| CN105987867A (en) | Indoor environment detection device based on fine particles | |
| US20210364485A1 (en) | Air quality monitor | |
| CN211263368U (en) | Air detection device | |
| CN106950335A (en) | A kind of Indoor Environment Detection equipment based on fine particle | |
| CN206832268U (en) | Laser sensor | |
| CN216211442U (en) | Smoke detection device | |
| CN208520413U (en) | A kind of telecommunication computer room internal environment detection device | |
| CN210486945U (en) | Gas detection device | |
| CN209417008U (en) | A kind of novel air quality detection device | |
| CN106066079A (en) | Air purifier performance testing device | |
| CN210534089U (en) | Air detection device | |
| CN208833720U (en) | It is a kind of for detecting the sensing device of air quality | |
| CN209167061U (en) | A kind of novel particle sensor | |
| CN215586441U (en) | Airflow channel structure and aerosol generating device | |
| CN213208088U (en) | Base structure and humidifier | |
| CN216211440U (en) | Fire detection device | |
| CN219391751U (en) | Anti-electronic-interference particulate matter monitoring device | |
| CN219613087U (en) | Triggering airway structure of airflow sensor and aerosol generating device | |
| CN216998407U (en) | Sampling flow adjustable planktonic bacteria sample thief | |
| CN215493031U (en) | Filter material performance detection device of air filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 363000 Malata 10 industrial park, JINDA Road, Jinfeng Development Zone, Zhangzhou, Fujian Patentee after: Zhangzhou Zhonghuan Technology Co.,Ltd. Address before: 363000 Malata 10 industrial park, JINDA Road, Jinfeng Development Zone, Zhangzhou, Fujian Patentee before: Zhangzhou Malata central Polytron Technologies Inc. |