CN205352900U - Particulate matter concentration detection device reaches air conditioning equipment including device - Google Patents
Particulate matter concentration detection device reaches air conditioning equipment including device Download PDFInfo
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- CN205352900U CN205352900U CN201520832097.2U CN201520832097U CN205352900U CN 205352900 U CN205352900 U CN 205352900U CN 201520832097 U CN201520832097 U CN 201520832097U CN 205352900 U CN205352900 U CN 205352900U
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Abstract
The utility model provides a detection device of particulate matter concentration in the detection air, including airflow channel, detecting element and testing result calculating unit, the outer air admission of detection device airflow channel, detecting element sets up airflow channel is last will the relevant information of particulate matter converts the signal of telecommunication to in the air, acquires the information relevant with air flow rate from the outside air conditioning equipment who is connected with detection device simultaneously, testing result calculating unit according to the signal of telecommunication of detecting element output with the concentration of particulate matter in the message counting air relevant with air flow rate. The utility model provides an air conditioning equipment including particulate matter concentration detection device.
Description
Technical field
This utility model relates to a kind of detecting device measuring particulate in air concentration, particularly relates to a kind of detecting device accurately measuring particulate in air concentration under the specific occasions such as air-conditioning, depurator or automobile.
Background technology
In many fields of productive life, it is necessary to the parameters such as the concentration of particulate matter or quantity are detected, for instance the detection of the particulate matter of discharge in factory's flue；The detection of atmospheric dust in environment；The detection of inflammable and explosive dust under ore deposit；And the particulate matter sensors etc. of the air cleaning facility of commercialization or domestic.The detection method of particulate matter mainly has screening, microscope, sedimentation, electric induction, light scattering method etc., wherein the light scattering method testing time is short, can measure continuously, the factors such as climate change, humidity change that avoid affect the drawback of Detection results, and do not have such as relatively complicated maintenance works such as periodic replacement filter membranes, therefore applied widely, quickly grow, be current reasonable granule detection method.
But at present when using light scattering method detection particulate in air concentration, the type of drive of the air-flow that particle concentration detecting device used uses mainly has two kinds: active and passive type；Active detection device can adopt fans drive so that tested gas steady flow, it is also possible to adopt heater block to heat the flowing of tested gas-powered gas；Passive type detecting device not active drive gas flows but utilizes the natural flow of tested gas or the flowing of external drive gas to make tested gas by tested district.The result major part adopting the concentration of the sensor measurement particulate in air of passive type at present is all inaccurate, and main cause is that measurement result can be had a significant impact by tested gas flow rate.When gas flow rate changes, sensor cannot continue to provide testing result accurately, it is necessary to user compensates voluntarily or calculates.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of detecting device detecting particulate in air concentration, including gas channel, detection unit and testing result computing unit；Air outside described detecting device enters described gas channel, described detection unit is arranged on described gas channel and converts the relevant information of described particulate in air to the signal of telecommunication, obtain the information relevant with air velocity from the extraneous air adjustment equipment being connected to detecting device, the testing result computing unit concentration according to the signal of telecommunication with the described information calculating particulate in air relevant to air velocity that detect unit output simultaneously.
Preferably, the described information relevant to air velocity is the air velocity in described extraneous air adjustment equipment.
Preferably, the described information relevant to air velocity is the information that described extraneous air regulates that the rotating speed of air movement device of equipment, power or gear are relevant.
Preferably, described detecting device also includes storage device；In described storage device, storage has the transformational relation of the information that the air velocity in described extraneous air adjustment equipment is relevant to the rotating speed of its air movement device, power or gear；Described testing result computing unit converts this information into air velocity according to described transformational relation.
Preferably, described detection unit is the optical detection unit being made up of luminous component and light receiving component；Described testing result computing unit calculates particulate in air concentration according to the signal of telecommunication of the signal of telecommunication and light receiving component reception light that the luminous component that described detection unit obtains launches light.
Preferably, described gas channel arranges turning structure, and in described turning arranged outside pore structure, for being lowered into the flow velocity of the air of described gas channel, bulky grain thing is thrown away gas channel simultaneously.
Preferably, described extraneous air regulates equipment is air-conditioning, air purifier or automobile air blood circulation.
This utility model also provides for a kind of conditioner including above-described detecting device, it is characterised in that: described detecting device is arranged on the position of the air velocity being able to detect that in described conditioner.
The particle concentration detecting device that this utility model relates to regulates equipment by extraneous air and obtains the wind speed of air-flow, with the wind speed of air-flow to adopting light scattering method detection particulate in air concentration to compensate, thus obtaining more accurate particle concentration.This kind of method can measure the concentration of the particulate matter under different wind speed.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the particle concentration detecting device that this utility model embodiment relates to；
Fig. 2 is an example of the schematic diagram of the gas channel that this utility model relates to；
Fig. 3 is the structural representation that the extraneous air that this utility model relates to regulates equipment；
Fig. 4 is the flow chart of the particle concentration detecting device detection particle concentration that this utility model relates to.
Detailed description of the invention
This utility model is set forth below according to accompanying drawing illustrated embodiment.This time disclosed embodiment is it is believed that be illustration in all respects, without limitation.Scope of the present utility model not explanation by implementation below is limit, and only shown in the scope of claims, and includes having all deformation in the same meaning and right with right.
Below in conjunction with detailed description of the invention, particle concentration detecting device of the present utility model is described.
Fig. 1 is the principle schematic of the particle concentration detecting device that this utility model embodiment relates to.The particle concentration detecting device of present embodiment includes gas channel 1, luminescence unit 2, light receiving unit 3, signal adjustment unit 4, signal processing unit 5 and data outputting unit 6.Gas channel 1 is arranged in the darkroom in device, it is to avoid by the impact of ambient light.Luminescence unit 2 and light receiving unit 3 are arranged at the side of gas channel 1, and luminescence unit 2 irradiates light to gas channel 1, and light receiving unit 3 is arranged on the position being able to receive that scattering light.Light receiving unit 3 is photoelectric conversion device, the scattering light received is converted to the signal of telecommunication, signal adjustment unit 4 signal of telecommunication is adjusted, and sends the result after adjusting to signal processing unit 5.Signal processing unit 5 has multiple input/output interface, it is possible to connect different extraneous airs and regulate equipment 8(as shown in Figure 3), and carry out information exchange with extraneous air adjustment equipment 8.Described particle concentration detecting device is installed on the position of the air velocity being able to detect that in described extraneous air adjustment equipment, and it can be the devices such as air-conditioning, air purifier or automobile air blood circulation that described extraneous air regulates equipment 8.Described extraneous air is regulated equipment and is sent the information obtained to signal processing unit 5 by input/output interface, and the information that signal processing unit 5 sends according to signal adjustment unit 4 and extraneous air adjustment equipment 8 processes, and obtains more accurate particle concentration.The particle concentration that signal processing unit 5 obtains can pass through data outputting unit 6 and carry out exporting or showing, it is also possible to is sent to extraneous air by the input/output interface of signal processing unit 5 and regulates equipment 8.
Particle concentration detecting device of the present embodiment is when the concentration of the particulate matter calculated in air, it is necessary to the impact of reference air mobility (i.e. wind speed), and the information relevant to air mobility (i.e. wind speed) is by extraneous air adjustment equipment offer.In the present embodiment, obtain more accurate particle concentration and can first pass through the concentration of common light scattering method Preliminary detection particulate in air, then utilizing extraneous air to regulate the speed of the air draught that equipment is calculated, utilizing the particle concentration that light scattering method is tentatively recorded by the flow velocity of air-flow to compensate thus obtaining more accurate particle concentration information.
When air velocity is bigger, the actual concentrations of particulate in air can exceed particle concentration detecting device can allow the scope of detection, so the structure of turning can be arranged on described gas channel 1, and outside the turning of gas channel, open aperture simultaneously.The turning structure of said flow passage and the setting of aperture can enable in the scope that the sensor element that entrance excessive wind speed therein is reduced to particle concentration detecting device effectively detects；Particulate matter bigger in air-flow can also be made due to inertia to throw away gas channel, thus filtering out king-sized particle.Such as the channel shape of described gas channel 1 can be shape as shown in Figure 2, and described gas channel has turning structure, forms the shape of approximate helical, makes the larger particles in air throw away gas channel at the first turning 12 arranged outside aperture 11；The center 14 of gas channel is led at second turning 13, and air-flow changes direction after arriving center 14, enters the vertical channel (not shown) vertical with the plane of former airflow passes.That is the gas channel in this example includes two parts of extension in two planes respectively, so can effectively utilize space, it is simple to arrange enough complicated testing agency in the detecting device that volume is little.
Detecting device of the present embodiment also includes driving device (not shown), and described driving device can launch optical signal by driven for emitting lights unit 2, it is preferable that described luminescence unit 2 can launch infrared light；Described luminescence unit 2 is able to record that the electrical signal information of described transmitting light, and sends the signal of telecommunication of record to described signal adjustment unit 4.Described luminescence unit 2 launches infrared light in described gas channel 1, when infrared illumination is mapped on particulate matter, scattering can be there is, because described light receiving unit 3 is arranged on the position being able to receive that scattering light, so described light receiving unit 3 is able to receive that described scattering light, and the scattering light received is converted to the corresponding signal of telecommunication, the described signal of telecommunication is sent to signal adjustment unit 4 by light receiving unit 3 simultaneously.Described luminescence unit 2 launch infrared light after emitting area (can regard as cylinder) and described light receiving unit 3 receive the overlapping area of space of receiving area (cylinder can also be regarded as) of infrared light as detection region 7.The signal of telecommunication of the scattering light received and transmitting light is adjusted by described signal adjustment unit 4, and sends information such as the signals of telecommunication after adjustment to described signal processing unit 5.Described signal processing unit 5 regulates the information such as the air-flow wind speed of equipment offer and calculates the concentration of particulate in air according to the signal of telecommunication received and extraneous air, and is sent by the particle concentration calculated to described data outputting unit 6 or extraneous air adjustment equipment 8.The information such as described data outputting unit 6 can be connected with display screen (not shown) or other external device, the particle concentration that display detects provide the user reference.
Include controlling device 81, air movement device 82 and storage device 83 as it is shown on figure 3, described extraneous air regulates equipment 8, connected by data wire between described control device 81, air movement device 82 and storage device 83.Described control device 81 is connected also by structures such as data wires with signal processing unit 5, the information such as wind speed can be sent to signal processing unit 5, described control device 81 connects not shown detecting device, can detect the working speed/rotative power of described air movement device 82, and according to the wind speed of storage and the corresponding form of air movement device rotating speed/rotative power/gear or computing formula acquisition wind speed in the rotating speed of described air movement device or rotative power/gear and storage device 83.Described control device 81 can also obtain the information such as the operation range of described air movement device, for instance air-conditioning is likely to be of the wind-force that fourth gear is different, the wind speed that every grade of correspondence is different.Above working speed/information such as rotative power and gear directly determines extraneous air and regulates the wind speed of equipment 8.In described storage device 83, storage has specific extraneous air to regulate the rotating speed/rotative power/gear of air movement device and the information such as the corresponding relation of wind speed or computing formula of equipment, described corresponding relation or computing formula are recorded by experiment by experimenter, can being previously stored in storage device, described corresponding relation or computing formula can be different because of the difference of the model of extraneous air adjustment equipment or equipment.It can be air-conditioning, air purifier or automobile air circulating device that described extraneous air regulates equipment 8, when described extraneous air adjustment equipment is air-conditioning, described particle concentration detecting device is arranged at the air inlet place of described air-conditioning, and before being positioned at the heat exchange unit of described air-conditioning.When described extraneous air regulate equipment be air purifier time, described particle concentration detecting device is arranged at the air inlet place of described air purifier, and before being positioned at the filter element of described air purifier.When described extraneous air adjustment equipment is automobile air circulating device, described particle concentration detecting device is arranged at the draft outlet place of described automobile.
Fig. 4 is the overhaul flow chart of the particle concentration detecting device that the present embodiment relates to.First driving device driven for emitting lights unit 2 launches optical signal to gas channel 1, records the electrical signal information of described transmitting light simultaneouslyX tx , and by described electrical signal informationX tx Send to signal adjustment unit 4(step S1).There is scattering after detecting the particulate matter in region in gas channel in described transmitting light, light receiving unit 3 receives scattering light, and described scattered light signal is converted to the signal of telecommunication of correspondenceX rx , and send to (step S2) in signal adjustment unit 4.The signal adjustment unit 4 scattering photosignal to receivingX rx It is adjusted, and by the data message after adjustment and the electrical signal information launching lightX tx Send to information process unit 5(step S3).The signal processing unit 5 electrical signal information according to described transmitting lightX tx , scattering photosignalX rx Calculate the basic concentration of particulate in airZ=fun(X tx ,X rx ) (step S4).Described extraneous air regulates the device 81 that controls of equipment and obtains rotating speed or the rotative power of air movement device 82 simultaneously, and according to the wind speed of storage and the corresponding form of air movement device rotating speed/rotative power/gear or computing formula acquisition air-flow wind speed in the rotating speed/rotative power/gear of the air movement device obtained and storage deviceS wind , described air-flow wind speed is sent to signal processing unit 5(step S5 by described control device).The signal processing unit 5 basic concentration according to described particulate matterZAnd air-flow wind speedS wind Calculate the Exact concentrations of particulate in airY=fun(Z,S wind ) (step S6).The concentration transmission of described particulate matter is carried out exporting (step S7) by signal processing unit 5 to data outputting unit 6.
In the embodiment above, when signal processing unit calculates the concentration of particulate in air, first according to the electrical signal information launching lightX tx And scattering photosignalX rx Etc. data, calculate the basic concentration of particulate in air；Then pass through extraneous air and regulate the air-flow wind speed that equipment calculates the air of entrance detecting device；The air-flow wind speed finally utilizing air compensates the basic concentration of described particulate matter and calculates the Exact concentrations obtaining particulate in air.But being not limited only to this, signal processing unit can according to the electrical signal information launching lightX tx , scattering photosignalX rx And air velocityS windDirectly calculate the Exact concentrations of particulate in airY=fun(X tx,X rx,S wind)。
In the embodiment above, the parameter of air movement device and the information such as the corresponding relation of wind speed or computing formula are stored in extraneous air and regulate in equipment 8, and the conversion of wind speed is regulated equipment 8 by extraneous air and completes.But this information such as corresponding relation or computing formula can also be stored in particle concentration detecting device, and conversion process is completed by particle concentration detecting device.
Claims (8)
1. detect a detecting device for particulate in air concentration, including gas channel, detection unit and testing result computing unit；
Air outside described detecting device enters described gas channel, described detection unit is arranged on described gas channel and converts the relevant information of described particulate in air to the signal of telecommunication, obtain the information relevant with air velocity from the extraneous air adjustment equipment being connected to detecting device, the testing result computing unit concentration according to the signal of telecommunication with the described information calculating particulate in air relevant to air velocity that detect unit output simultaneously.
2. the detecting device of particle concentration according to claim 1, it is characterised in that:
The described information relevant to air velocity is the air velocity in described extraneous air adjustment equipment.
3. the detecting device of particle concentration according to claim 1, it is characterised in that:
The described information relevant to air velocity is the information that described extraneous air regulates that the rotating speed of air movement device of equipment, power or gear are relevant.
4. the detecting device of particle concentration according to claim 3, it is characterised in that:
Described detecting device also includes storage device；
In described storage device, storage has the transformational relation of the information that the air velocity in described extraneous air adjustment equipment is relevant to the rotating speed of its air movement device, power or gear；
Described testing result computing unit converts this information into air velocity according to described transformational relation.
5. the detecting device of the particle concentration according to any one of Claims 1 to 4, it is characterised in that:
Described detection unit is the optical detection unit being made up of luminous component and light receiving component；
Described testing result computing unit calculates particulate in air concentration according to the signal of telecommunication of the signal of telecommunication and light receiving component reception light that the luminous component that described detection unit obtains launches light.
6. the detecting device of the particle concentration according to any one of Claims 1 to 4, it is characterised in that:
Described gas channel arranges turning structure, and in described turning arranged outside pore structure, for being lowered into the flow velocity of the air of described gas channel, bulky grain thing is thrown away gas channel simultaneously.
7. the detecting device of the particle concentration according to any one of Claims 1 to 4, it is characterised in that: it is air-conditioning, air purifier or automobile air blood circulation that described extraneous air regulates equipment.
8. the conditioner of the detecting device included described in claim 1～7, it is characterised in that:
Described detecting device is arranged on the position of the air velocity being able to detect that in described conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520832097.2U CN205352900U (en) | 2015-10-26 | 2015-10-26 | Particulate matter concentration detection device reaches air conditioning equipment including device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520832097.2U CN205352900U (en) | 2015-10-26 | 2015-10-26 | Particulate matter concentration detection device reaches air conditioning equipment including device |
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| CN205352900U true CN205352900U (en) | 2016-06-29 |
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| CN201520832097.2U Expired - Fee Related CN205352900U (en) | 2015-10-26 | 2015-10-26 | Particulate matter concentration detection device reaches air conditioning equipment including device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290096A (en) * | 2016-09-12 | 2017-01-04 | 广东美的制冷设备有限公司 | A kind of household electrical appliance, dust sensor and scaling method, caliberating device |
| WO2018045768A1 (en) * | 2016-09-12 | 2018-03-15 | 广东美的制冷设备有限公司 | Home appliance, dust sensor and calibration method and calibration apparatus therefor |
| CN109873649A (en) * | 2019-01-19 | 2019-06-11 | 江苏景灿钢杆有限公司 | A kind of beautification communication tower |
-
2015
- 2015-10-26 CN CN201520832097.2U patent/CN205352900U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290096A (en) * | 2016-09-12 | 2017-01-04 | 广东美的制冷设备有限公司 | A kind of household electrical appliance, dust sensor and scaling method, caliberating device |
| WO2018045768A1 (en) * | 2016-09-12 | 2018-03-15 | 广东美的制冷设备有限公司 | Home appliance, dust sensor and calibration method and calibration apparatus therefor |
| CN109873649A (en) * | 2019-01-19 | 2019-06-11 | 江苏景灿钢杆有限公司 | A kind of beautification communication tower |
| CN109873649B (en) * | 2019-01-19 | 2020-09-08 | 江苏景灿钢杆有限公司 | Beautify communication tower |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180124 Address after: 215600 Jiangsu Suzhou city Zhangjiagang economic and Technological Development Zone (city hi tech entrepreneurship Service Center) E 501-507 room Chuang Kai Environmental Technology (Suzhou) Co., Ltd. Patentee after: Jin Kai Environmental Technology (Suzhou) Co., Ltd. Address before: 200131 Shanghai City, Pudong New Area China (Shanghai) free trade zone 81 Foot Road No. 2 Building 1 room 1210 Patentee before: Sky Environment Technology (Shanghai) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20171026 |