CN203672855U - Portable air quality detecting instrument based on T-shaped channel - Google Patents
Portable air quality detecting instrument based on T-shaped channel Download PDFInfo
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- CN203672855U CN203672855U CN201320635344.0U CN201320635344U CN203672855U CN 203672855 U CN203672855 U CN 203672855U CN 201320635344 U CN201320635344 U CN 201320635344U CN 203672855 U CN203672855 U CN 203672855U
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Abstract
The utility model provides a portable air quality detecting instrument based on a T-shaped channel. The portable air quality detecting instrument comprises a casing, air sampling driving devices, air sensing detection devices and a display control device, and is characterized in that a T-shaped air passage is arranged in the casing; a left air channel and a right air channel of the T-shaped air passage are an indoor air sampling air channel and an outdoor air sampling air channel respectively; the air sampling driving devices are arranged in the two sampling air channels; the air sensing detection devices are arranged in a lower air passage of the T-shaped air passage; and the air sampling driving devices and the air sensing detection devices are electrically connected with the display control device. The portable air quality detecting instrument based on the T-shaped channel adopts a design of a two-way single-channel air inlet system and has a time-sharing adoption function, so that indoor and outdoor air quality is detected simultaneously by one set of detecting instrument, the reliability of the detecting result is guaranteed, the instrument structure is simplified, the instrument size is reduced, and the operating process is simplified.
Description
Technical field
The utility model relates to a kind of portable air mass detecting instrument based on T-shaped passage, by indoor-outdoor air is passed into same sense channel by two passage timesharing, detected the indexs such as particulate in air, formaldehyde, volatile organic matter, humiture by same group of detecting device timesharing, belong to the field of analytical chemistry sensor technology and environmental analysis instrument.
Background technology
Along with improving constantly and the change of life style of people's living standard, people are more and more longer in the time of indoor life.Therefore, the quality of IAQ (indoor air quality) directly has influence on health of people.The air quality report that environmental administration issues, is difficult to accurately to reflect the air quality situation of the microenvironment such as community of diverse geographic location cannot meet real-time and the targetedly requirement of micro-air ambient such as family, automobile to air quality monitoring.Just finishing new house soon or the closed room of use air-conditioning, be all difficult to avoid the invasion of the pollutants such as the volatile organic matter such as formaldehyde, benzene homologues, and people need to improve IAQ (indoor air quality) by the ventilation of windowing; But face the haze weather frequently occurring, the ventilation of windowing is avoided in the rising of the particle (PM2.5, PM10) of outside atmosphere again.The when selection ventilation of windowing, people need the guidance of science more.The current same quasi-instrument appearing on the market all can only be measured the single indexs such as particle, formaldehyde, volatile organic matter, and measures when cannot realizing indoor-outdoor air.Therefore in the assessment of household air quality, there is defect.And normally large-scale precision analytical instrument of the determining instrument using in laboratory, instrument volume is large, heavy, and complicated operation, generally under specific environment, operates use by professional person, is therefore not suitable for the microenvironment such as average family, automobile and uses.Along with the development of sensor technology, the type of commercial sensor such as particle, formaldehyde and volatile organic matter, Temperature Humidity Sensor are there is on the market.But, these sensors are integrated, realize a set of sensor indoor-outdoor air is detected, remain a real problem.
Utility model content
The purpose of this utility model is the deficiency in order to solve above-mentioned technology and provide a kind of towards the volume of the microenvironment such as family, automobile Portable type room air quality detector small and exquisite, simple in structure, easy and simple to handle.
In order to achieve the above object, the portable air mass detecting instrument based on T-shaped passage that the utility model is designed, comprise shell, gas sampling drive unit, gas sensing pick-up unit and display control unit, it is characterized in that being provided with T-shaped gas circuit in described shell, be respectively indoor gas sampling air flue and outdoor gas sampling air flue at the left and right of T-shaped gas circuit air flue, in two described sampling air flues, be equipped with gas sampling drive unit, in the lower gas circuit of T-shaped gas circuit, be provided with gas sensing pick-up unit, described gas sampling drive unit, gas sensing monitoring device is all electrically connected with display control unit.The feature of this result is to utilize the air ambient of the effect sampling indoor and outdoor of indoor, outdoor sampling air flue, and is detected and controlled quality by display control unit timesharing.
The scheme of further optimizing is that described gas sampling drive unit comprises mini-fan or micro air pump, so that the power of gas sampling to be provided.
The scheme of further optimizing is that described gas sensing monitoring device is made up of gas particles thing sensor, Temperature Humidity Sensor and total volatile organism sensor.Gas particles thing sensor adopts the sensor based on light scattering principle, can detect 0.8 micron of above gasoloid, can substantially meet the fast detecting to the gas index such as PM2.5 and PM10.Total volatile organism sensor adopts electricity to lead the semiconductor transducer that detects principle, pollutant main in domestic environment is detected as formaldehyde, ammonia, sulfuretted hydrogen, volatile organic matter (containing benzene homologues such as benzene and toluene), and such sensor has advantages of that single-sensor can detect multiple pollutant.Temperature Humidity Sensor adopts integrated electric capacity or resistance temperature detector, has advantages of that volume is small and exquisite, reliable results.Three sensors are installed in the lower gas circuit of T-shaped passage side by side, and transducing signal is connected to display control unit and gathers computing, and operation result shows by the display screen of display control unit.
The scheme of further optimizing is, described display control unit is take microcontroller as core, and integrated powered battery and charging circuit, can be by lithium battery battery or mains-supplied; The also integrated driving display control unit of gas sampling drive unit, can realize driving respectively and the flow control in two gas-powered sources, also possesses the ability of multiplexed signal sampling simultaneously, can carry out synchronous acquisition to different sensor signals.In addition, display control unit is also provided with display, and can be by the quality of the each index of comparison indoor and outdoor, provides the prompting directly perceived that whether is applicable to ventilation.
The portable air mass detecting instrument based on T-shaped passage that the utility model obtains uses two-way single channel gas handling system design, set timesharing and adopt function, realize a set of detecting device sensing chamber's inner air and outer air quality simultaneously, so both guaranteed the reliability of measurement result, simplify again apparatus structure, reduction printer body is long-pending, has simplified operating process.This integrated design multiple air index measuring abilities such as particle, formaldehyde, TVOC and humiture, volume is small and exquisite, simple in structure, simple operation is particularly applicable to detection and the Real-Time Monitoring of the microenvironment such as family, automobile.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the sampling schematic diagram of the utility model embodiment 1.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, 2, the described portable air mass detecting instrument based on T-shaped passage of the present embodiment, it comprises gas sampling drive unit, gas sensing monitoring device, display control unit and shell 11 4 parts.In described shell, be provided with T-shaped gas circuit 1, in T-shaped gas circuit 1, be provided with indoor gas sampling drive unit 2, outdoor gas sampling drive unit 3, indoor gas sampling drive unit 2 is arranged in the left air flue of T-shaped air flue, connect indoor environment by the indoor gas air flue 7 of sampling, outdoor gas sampler 3 is arranged in the right air flue of T-shaped air flue, connects outside atmosphere by outdoor gas sampling air flue 8.Indoor gas sampling drive unit 2 and outdoor gas sampling drive unit 3 are connected to display control unit 10, are driven respectively and are controlled by program by display control unit 10.Gas sensing monitoring device is made up of gas sensors such as gas particles thing sensor 4, Temperature Humidity Sensor 5, total volatile organism sensors 6, installation of sensors is in the downtake 9 of T-shaped passage, each transducing signal is connected to display control unit 10 and gathers computing, operation result shows by the display screen of display control unit 10, gas sampling drive unit, gas sensing monitoring device, control and display circuit three are partly integrated in shell, realize integrated and portability.
When work, portable air mass detecting instrument is installed on indoor, outdoor gas sampling air flue 8 is connected to outdoor air by conduit.Open after the measuring ability of instrument, in the moment 1, the outer gas sampling drive unit 3 of display control unit 10 priming chambers, gas sampling driver 2 outside close chamber, outdoor air enters T-shaped passage by conduit, downtake by T-shaped passage is discharged, be installed in the sensor senses in downtake, gas passage is by shown in figure bis-solid lines, and signal is inputted display control unit by each sensor, gather gas signal by display control unit, computing obtains each index of outdoor air.After continuing for some time, controller obtains the effective mean value of each index in the moment 1 to each signal integration computing.In the moment 2, gas sampling driver 3 outside display control unit 10 close chamber, gas sampling driver 2 in opening chamber, room air enters T-shaped passage by air intake 7, the outdoor air that moment one stays in air flue is discharged by the downtake of T-shaped passage, room air enters downtake detection simultaneously, gas passage is by shown in figure bis-dotted lines, the each index of room air is by the sensor senses being arranged in downtake, signal is inputted display control unit by sensor, have display control unit to gather gas signal, computing obtains each index of outdoor air.After continuing for some time, controller obtains the effective mean value of each index in the moment 2 to each signal integration computing.By contrasting the gas index in two moment, instrument can directly provide the height of the each index of indoor and outdoor, provides the prompting that whether is applicable to windowing.
Claims (4)
1. the portable air mass detecting instrument based on T-shaped passage, comprise shell, gas sampling drive unit, gas sensing pick-up unit and display control unit, it is characterized in that being provided with T-shaped gas circuit in described shell, be respectively indoor gas sampling air flue and outdoor gas sampling air flue at the left and right of T-shaped gas circuit air flue, in two described sampling air flues, be equipped with gas sampling drive unit, in the lower gas circuit of T-shaped gas circuit, be provided with gas sensing pick-up unit, described gas sampling drive unit, gas sensing monitoring device are all electrically connected with display control unit.
2. the portable air mass detecting instrument based on T-shaped passage according to claim 1, is characterized in that described gas sampling drive unit comprises mini-fan or micro air pump.
3. the portable air mass detecting instrument based on T-shaped passage according to claim 1, is characterized in that described gas sensing monitoring device is made up of gas particles thing sensor, Temperature Humidity Sensor and total volatile organism sensor.
4. the portable air mass detecting instrument based on T-shaped passage according to claim 1, it is characterized in that described display control unit is take microcontroller as core, integrated powered battery and charging circuit, the also integrated Drive and Control Circuit of gas sampling drive unit, and be provided with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635344.0U CN203672855U (en) | 2013-10-15 | 2013-10-15 | Portable air quality detecting instrument based on T-shaped channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635344.0U CN203672855U (en) | 2013-10-15 | 2013-10-15 | Portable air quality detecting instrument based on T-shaped channel |
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| Publication Number | Publication Date |
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| CN203672855U true CN203672855U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320635344.0U Expired - Fee Related CN203672855U (en) | 2013-10-15 | 2013-10-15 | Portable air quality detecting instrument based on T-shaped channel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316648A (en) * | 2014-10-17 | 2015-01-28 | 苏州佳世达电通有限公司 | Air flow sensing device |
| CN104914210A (en) * | 2014-12-29 | 2015-09-16 | 湖南吉利汽车部件有限公司 | Automatic in-car air detection system |
| CN105737905A (en) * | 2016-04-28 | 2016-07-06 | 中国农业大学 | Livestock house air environment quality testing system and use method thereof |
| CN107655798A (en) * | 2016-07-26 | 2018-02-02 | 惠州华阳通用电子有限公司 | A kind of device for detecting automobile interior exterior air quality |
| CN108627617A (en) * | 2018-05-17 | 2018-10-09 | 合肥杜威智能科技股份有限公司 | A kind of air quality display system |
| CN110036273A (en) * | 2016-12-01 | 2019-07-19 | Lg电子株式会社 | Dust measuring device |
-
2013
- 2013-10-15 CN CN201320635344.0U patent/CN203672855U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316648A (en) * | 2014-10-17 | 2015-01-28 | 苏州佳世达电通有限公司 | Air flow sensing device |
| CN104316648B (en) * | 2014-10-17 | 2016-04-20 | 苏州佳世达电通有限公司 | Airflow sensing apparatus |
| CN104914210A (en) * | 2014-12-29 | 2015-09-16 | 湖南吉利汽车部件有限公司 | Automatic in-car air detection system |
| CN105737905A (en) * | 2016-04-28 | 2016-07-06 | 中国农业大学 | Livestock house air environment quality testing system and use method thereof |
| CN105737905B (en) * | 2016-04-28 | 2018-03-13 | 中国农业大学 | A kind of poultry house quality of air environment detecting system and its application method |
| CN107655798A (en) * | 2016-07-26 | 2018-02-02 | 惠州华阳通用电子有限公司 | A kind of device for detecting automobile interior exterior air quality |
| CN107655798B (en) * | 2016-07-26 | 2024-04-09 | 惠州华阳通用电子有限公司 | Device for detecting air quality inside and outside automobile |
| CN110036273A (en) * | 2016-12-01 | 2019-07-19 | Lg电子株式会社 | Dust measuring device |
| US11112343B2 (en) | 2016-12-01 | 2021-09-07 | Lg Electronics Inc. | Dust measurement apparatus |
| CN108627617A (en) * | 2018-05-17 | 2018-10-09 | 合肥杜威智能科技股份有限公司 | A kind of air quality display system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20211015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |