CN201378137Y - Testing wind tunnel of dust sensor - Google Patents
Testing wind tunnel of dust sensor Download PDFInfo
- Publication number
- CN201378137Y CN201378137Y CN200920301207U CN200920301207U CN201378137Y CN 201378137 Y CN201378137 Y CN 201378137Y CN 200920301207 U CN200920301207 U CN 200920301207U CN 200920301207 U CN200920301207 U CN 200920301207U CN 201378137 Y CN201378137 Y CN 201378137Y
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- wind tunnel
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Abstract
The utility model relates to a testing wind tunnel of a dust sensor, comprising a dust drying device, a speed-regulating dust feeding device connected with a dust output port of the dust drying device, and a dust wind tunnel, wherein the dust wind tunnel comprises an air inlet, a test section and an air outlet; the dust output end of the speed-regulating dust feeding device is arranged at the air inlet of the dust wind tunnel; the dust sensor and a dust sampler arranged parallelly is arranged in the test section of the dust wind tunnel; the air outlet of the dust wind tunnel is sequentially connected with a dust removal device and a residual dust discharging device; the dust sensor is connected with a dust concentration displaying device used for displaying the dust concentration value; the dust sampled by the dust sampler is weighed by a dust weighing device to obtain the dust weight obtained in unit time; then the corresponding dust concentration value is calculated and compared with the dust concentration value displayed by the dust concentration displaying device; and finally, the measuring error of the dust sensor is obtained, thus providing basis for the trial-manufacture, production and the maintenance of the dust sensor.
Description
Technical field
The utility model relates to a kind of wind tunnel test of dust sensor.
Background technology
It is special-purpose that dust wind-tunnel system is that the dust sensor that aims at new production carries out actual test, demarcation and performance examination institute, is dust sensor trial-production, produces and the testing apparatus of indispensability during maintenance.There is not such testing apparatus in the prior art.
The utility model content
The purpose of this utility model provides a kind of wind tunnel test of simple in structure, dust sensor that automaticity is higher.
To achieve these goals, the utility model has designed a kind of wind tunnel test of dust sensor, comprising: dust drying unit, the adjustable speed dust that links to each other with the dust delivery outlet of dust drying unit are to dirt device and dust wind-tunnel; The dust wind-tunnel comprises: air inlet, test section and air outlet; The adjustable speed dust is located at the air inlet of dust wind-tunnel to the dust output terminal of dirt device, is provided with the dust sensor and the dust sampler of parallel placement in the test section of dust wind-tunnel; The air outlet of dust wind-tunnel is connected with dust arrester and surplus dirt tapping equipment in turn; Dust sensor is connected with the dust concentration display device that shows the dust concentration value, the dust weight that the dust that dust sampler is sampled is weighed and drawn in the unit interval to be obtained by the dust weighing device, calculate corresponding dust concentration value then, compare in dust concentration value with the demonstration of dust concentration display device, draw the measuring error of dust sensor at last, thereby provide foundation for trial-production, production and the maintenance of dust sensor.Described dust weighing device is the high accuracy analysis balance, and precision is 0.1 milligram.
Be provided with honeycomb screen in the place ahead of dust sensor and dust sampler in the test section of described dust wind-tunnel, be used to make air-flow evenly to flow at described test section.
The air outlet of described dust wind-tunnel is provided with the axial fan by Frequency Converter Control that is used for the wind speed of dust wind-tunnel is controlled at steady state value (2m/s).
Be provided with gravitational dust collection device and bag-type dust collector in the described dust arrester successively.
Described adjustable speed dust comprises to the dirt device: give the dirt device and send the dirt power source, connect by tracheae therebetween; The described dirt device of giving comprises: motor, gear, to dirt dish, funnel, dust blowing device, injector; Motor is used for rotating to the dirt dish through gear drive, upper surface to the dirt dish is provided with the dust groove, the funnel that is used to hold dust is located at the dust groove top to the dirt dish, is used for dust blowing device that the unnecessary dust with the described dust groove outside scrapes and is located at top one side to the dirt dish; The described dirt power source that send comprises: air compressor and the gas bomb that links to each other with air compressor; Gas bomb links to each other with the injector of the dust that is used for sucking described dust groove, is connected with the tracheae that is used for dust is sent into the dust wind-tunnel on the injector.
Motor links to each other with the electric machine controller that is used to regulate motor speed, to produce the required dust concentration of test at the dust wind-tunnel.
Further, remain drying for guaranteeing dust, described top to the dirt dish is provided with the infrared lamp that is used for dried dust, and dust is carried out uninterrupted heat drying.For the gas outlet pressure that makes gas bomb remains on a fixed value, described gas bomb is provided with reduction valve.
Described dust sampling device comprises: vacuum pump and the flowmeter that links to each other with vacuum pump by tracheae, the tracheae between vacuum pump and the flowmeter are provided with the buffering air chamber that is used for stablizing sampling air flow.
Tracheae between described buffering air chamber and the flowmeter is provided with the variable valve that is used to regulate airshed; Described flowmeter is provided with sampling head, is provided with the filter membrane clip that is used for the clamping filter membrane in the sampling head.
Compared with prior art, the utlity model has following good effect: in the wind tunnel test of (1) dust sensor of the present utility model, the dust of oven dry is packed in the dirt tube of adjustable speed dust to the dirt device, the dust of sending from the dirt tube drops on the groove to the dirt dish of adjustable speed dust to the dirt device, step motor drive is to the dirt dish, after pressurized air passes through injector, dust in the described groove is by the air inlet that mouth sucks wind-tunnel that draws of injector, dust enters wind-tunnel, deliver to test section after air-flow transports, dust sensor and dust sampler carry out dust concentration respectively and detect and dust sampling.Last remaining dust is sent to dust arrester, and with the most of dust of filtering, last surplus dirt is disposed to outdoor by surplus dirt tapping equipment, and the contained dust concentration of air-flow of discharging this moment reaches the concentration of environmental requirement.(2) adjustable speed dust of the present utility model is in the dirt device, and the dust that the dust blowing device is higher than card in will be to dirt dish groove when rotating to the dirt dish strikes off, thereby keeps giving the stable of dust quantity.The negative pressure that injector is produced when utilizing the gases at high pressure in the gas bomb to pass through injector will suck to dust in the dirt dish groove, and then dust enters wind-tunnel with air-flow.When (3) the adjustable speed dust is worked to the dirt device, motor-driven gear, gear driven rotates together to the dirt dish.In the stepper motor uniform rotation process, dust is fallen on the dish in the funnel, regulates the stepper motor rotating speed, can change to dust quantity.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of the wind tunnel test of dust sensor of the present utility model;
Fig. 2 is the structural representation of the dust sampler in the above-mentioned wind tunnel test system;
Fig. 3 is that adjustable speed dust in the above-mentioned wind tunnel test system is to the structural representation of dirt device.
Label is as follows in the accompanying drawing: 1--dust drying unit, 2--adjustable speed dust be to the dirt device, 21--dust blowing device, the 22--infrared lamp, the 23--funnel, 24--is to the dirt dish, the 25--gear, 26--injector, 27--motor, the 28--gas bomb, 29--air compressor machine, 30--tracheae, 3--dust wind-tunnel, 5--dust arrester, the surplus dirt tapping equipment of 6--, the 7--dust sensor, the 8--dust sampler, 9--dust concentration display device, 10--dust weighing device, the 11--calculation element, the 81--vacuum pump, 82--flowmeter, 83--variable valve, 84--cushions air chamber, 85--sampling head.
Embodiment
Embodiment 1
See Fig. 1-3, the wind tunnel test of the dust sensor of present embodiment comprises: dust drying unit 1, the adjustable speed dust that links to each other with the dust delivery outlet of dust drying unit 1 are to dirt device 2 and dust wind-tunnel 3; Dust wind-tunnel 3 comprises: air inlet, test section and air outlet.
The adjustable speed dust is located at the air inlet of dust wind-tunnel 3 to the dust output terminal of dirt device 2, is provided with the dust sensor 7 and the dust sampler 8 of parallel placement in the test section of dust wind-tunnel 3; The air outlet of dust wind-tunnel 3 is connected with dust arrester 5 and surplus dirt tapping equipment 6 in turn.
Dust sensor 7 is connected with the dust concentration display device 9 that shows the dust concentration value, the dust weight that the dust that dust sampler 8 is sampled is weighed and drawn in the unit interval to be obtained by dust weighing device 10, calculate corresponding dust concentration value by calculation element 11 then, compare in dust concentration value, draw the measuring error of dust sensor 7 at last with 9 demonstrations of dust concentration display device.
Be provided with in the place ahead of dust sensor 7 and dust sampler 8 in the test section of described dust wind-tunnel 3 and be used to honeycomb screen that air-flow is evenly flowed.
The air outlet of described dust wind-tunnel 3 is provided with the axial fan by Frequency Converter Control that is used for the wind speed of dust wind-tunnel 3 is controlled at steady state value.
Be provided with gravitational dust collection device and bag-type dust collector successively in the described dust arrester 5.
Described adjustable speed dust comprises to dirt device 2: give the dirt device and send the dirt power source, connect by tracheae therebetween; The described dirt device of giving comprises: stepper motor 27, gear 25, to dirt dish 24, funnel 23, dust blowing device 21, injector 26; Stepper motor 27 is used for driving to 24 rotations of dirt dish through gear 25, upper surface to dirt dish 24 is provided with the dust groove, the funnel 23 that is used to hold dust is located at the dust groove top to dirt dish 24, is used for dust blowing device 21 that the unnecessary dust with the described dust groove outside scrapes and is located at top one side to dirt dish 24; The described dirt power source that send comprises: air compressor 29 and the gas bomb 28 that links to each other with air compressor 29; Gas bomb 28 links to each other with the injector 26 of the dust that is used for sucking described dust groove, is connected with the tracheae 30 that is used for dust is sent into dust wind-tunnel 3 on the injector 26.
When described adjustable speed dust was worked to dirt device 2, at first air compressor machine 29 started, toward gas bomb 2 inflations.When pressure reaches certain value in the gas bomb 28, open gas bomb 28, regulate reduction valve, make the gas outlet pressure of gas bomb 28 remain on a fixed value (0.2MPa).Pressure gas is sent into wind-tunnel from tracheae 30, and during air-flow process injector 26, the negative pressure of generation will suck to the dust in the dust groove of dirt dish, and dust enters dust wind-tunnel 3 with air-flow.Air compressor machine work is set to 0.6MPa and starts, and 0.8MPa stops.Guarantee in the gas bomb gaseous tension like this much larger than 0.2MPa, thereby make the gas outlet constant pressure.
Described dust sampling device 8 comprises: vacuum pump 81 and the flowmeter 82 that links to each other with vacuum pump 81 by tracheae, tracheae between vacuum pump 81 and the flowmeter 82 is provided with the buffering air chamber 84 that is used for stablizing sampling air flow, to prevent making sampling flow have sudden change when just opening and closing vacuum pump 81.
In order to make airshed remain on fixed value, the tracheae between described buffering air chamber 84 and the flowmeter 82 is provided with the variable valve 83 that is used to regulate airshed; Described flowmeter 82 is provided with sampling head 85, is provided with the filter membrane clip that is used for the clamping filter membrane in the sampling head 85.
Before the sampling, earlier filter membrane is fixed with filter membrane clip, put the thermostatic drying chamber oven dry, put dust weighing device 10 and weigh, record data m0 puts into sampling head 85 with it then.Sampling head 85 connects the test section that is placed in dust wind-tunnel 3 behind the flowmeter 82.
Take out sampling head 85, wherein filter membrane clip takes out, weigh once more after the drying case drying, and record data m1, then by following formula calculating sampling concentration:
*100％。
Claims (9)
1, a kind of wind tunnel test of dust sensor is characterized in that comprising: dust drying unit (1), the adjustable speed dust that links to each other with the dust delivery outlet of dust drying unit (1) are to dirt device (2) and dust wind-tunnel (3); Dust wind-tunnel (3) comprising: air inlet, test section and air outlet;
The adjustable speed dust is located at the air inlet of dust wind-tunnel (3) to the dust output terminal of dirt device (2), is provided with the dust sensor (7) and the dust sampler (8) of parallel placement in the test section of dust wind-tunnel (3); The air outlet of dust wind-tunnel (3) is connected with dust arrester (5) and surplus dirt tapping equipment (6) in turn; Dust sensor (7) is connected with the dust concentration display device (9) that shows the dust concentration value.
2, the wind tunnel test of dust sensor according to claim 1 is characterized in that: be provided with in the place ahead of dust sensor (7) and dust sampler (8) in the test section of described dust wind-tunnel (3) and be used to honeycomb screen that air-flow is evenly flowed.
3, the wind tunnel test of dust sensor according to claim 2 is characterized in that: the air outlet of described dust wind-tunnel (3) is provided with the axial fan by Frequency Converter Control that is used for the wind speed of dust wind-tunnel (3) is controlled at steady state value.
4, the wind tunnel test of dust sensor according to claim 3 is characterized in that: described dust arrester is provided with gravitational dust collection device and bag-type dust collector in (5) successively.
5, according to the wind tunnel test of one of claim 1-4 described dust sensor, it is characterized in that: described adjustable speed dust comprising to dirt device (2): give the dirt device and send the dirt power source, connect by tracheae therebetween; The described dirt device of giving comprises: stepper motor (27), gear (25), to dirt dish (24), funnel (23), dust blowing device (21), injector (26); Stepper motor (27) is used for driving to dirt dish (24) through gear (25) and rotates, upper surface to dirt dish (24) is provided with the dust groove, the funnel (23) that is used to hold dust is located at the dust groove top to dirt dish (24), is used for dust blowing device (21) that the unnecessary dust with the described dust groove outside scrapes and is located at top one side to dirt dish (24); The described dirt power source that send comprises: air compressor (29) and the gas bomb (28) that links to each other with air compressor (29); Gas bomb (28) links to each other with the injector (26) of the dust that is used for sucking described dust groove, is connected with the tracheae (30) that is used for dust is sent into dust wind-tunnel (3) on the injector (26).
6, the wind tunnel test of dust sensor according to claim 5 is characterized in that: stepper motor (27) links to each other with the electric machine controller that is used to regulate motor speed.
7, the wind tunnel test of dust sensor according to claim 6 is characterized in that: described top to dirt dish (24) is provided with the infrared lamp (22) that is used for dried dust.
8, according to the wind tunnel test of one of claim 1-4 described dust sensor, it is characterized in that: described dust sampling device (8) comprising: vacuum pump (81) is provided with the buffering air chamber (84) that is used for stablizing sampling air flow with the flowmeter (82) that links to each other with vacuum pump (81) by tracheae, the tracheae between vacuum pump (81) and the flowmeter (82).
9, the wind tunnel test of dust sensor according to claim 8 is characterized in that: the tracheae between described buffering air chamber (84) and the flowmeter (82) is provided with the variable valve (83) that is used to regulate airshed; Described flowmeter (82) is provided with sampling head (85), and sampling head is provided with the filter membrane clip that is used for the clamping filter membrane in (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301207U CN201378137Y (en) | 2009-03-11 | 2009-03-11 | Testing wind tunnel of dust sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301207U CN201378137Y (en) | 2009-03-11 | 2009-03-11 | Testing wind tunnel of dust sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378137Y true CN201378137Y (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920301207U Expired - Lifetime CN201378137Y (en) | 2009-03-11 | 2009-03-11 | Testing wind tunnel of dust sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590447A (en) * | 2012-01-12 | 2012-07-18 | 上海信孚环保技术工程有限公司 | Method and equipment for calibrating dust-measuring instrument |
| CN104502162A (en) * | 2014-12-31 | 2015-04-08 | 郑州光力科技股份有限公司 | Dust sampler and dust concentration calibrating device using dust sampler |
| CN104596622A (en) * | 2014-12-15 | 2015-05-06 | 中冶长天国际工程有限责任公司 | Method and device for calibrating dust removal quantity of electric precipitator |
| CN105043954A (en) * | 2015-08-27 | 2015-11-11 | 河南省计量科学研究院 | Calibration system and calibration method for digital dust meter |
| CN105486619A (en) * | 2016-02-01 | 2016-04-13 | 河南省计量科学研究院 | System for calibrating particulate matter measuring instruments and calibrating method of system |
| CN106680167A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Performance test device for dust detector |
| CN107860692A (en) * | 2017-11-01 | 2018-03-30 | 缪荣明 | Dust concentration caliberating device and scaling method in dust work environment |
| CN111141647A (en) * | 2019-12-31 | 2020-05-12 | 众旺达(宁夏)技术咨询有限公司 | Air dust monitoring method for environmental supervision |
-
2009
- 2009-03-11 CN CN200920301207U patent/CN201378137Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590447A (en) * | 2012-01-12 | 2012-07-18 | 上海信孚环保技术工程有限公司 | Method and equipment for calibrating dust-measuring instrument |
| CN104596622A (en) * | 2014-12-15 | 2015-05-06 | 中冶长天国际工程有限责任公司 | Method and device for calibrating dust removal quantity of electric precipitator |
| CN104596622B (en) * | 2014-12-15 | 2017-02-22 | 中冶长天国际工程有限责任公司 | Method and device for calibrating dust removal quantity of electric precipitator |
| CN104502162A (en) * | 2014-12-31 | 2015-04-08 | 郑州光力科技股份有限公司 | Dust sampler and dust concentration calibrating device using dust sampler |
| CN104502162B (en) * | 2014-12-31 | 2017-07-07 | 郑州光力科技股份有限公司 | Dust sampler and the dust concentration caliberating device using the dust sampler |
| CN105043954A (en) * | 2015-08-27 | 2015-11-11 | 河南省计量科学研究院 | Calibration system and calibration method for digital dust meter |
| CN105043954B (en) * | 2015-08-27 | 2017-12-08 | 河南省计量科学研究院 | The calibration system and its scaling method of digital dust instrument |
| CN105486619A (en) * | 2016-02-01 | 2016-04-13 | 河南省计量科学研究院 | System for calibrating particulate matter measuring instruments and calibrating method of system |
| CN106680167A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Performance test device for dust detector |
| CN107860692A (en) * | 2017-11-01 | 2018-03-30 | 缪荣明 | Dust concentration caliberating device and scaling method in dust work environment |
| CN107860692B (en) * | 2017-11-01 | 2020-03-24 | 缪荣明 | Dust concentration calibration device and calibration method in dust operation environment |
| CN111141647A (en) * | 2019-12-31 | 2020-05-12 | 众旺达(宁夏)技术咨询有限公司 | Air dust monitoring method for environmental supervision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU 3SHINE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGSU SHINE TECHNOLOGY GROUP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 213022 Jiangsu province Changzhou Xinbei Longhu Street Technology Road No. 1 Patentee after: Jiangsu Shine Technology Co., Ltd. Address before: 213031 Jiangsu city of Changzhou province Xinbei Longhu street, Avenue of science and technology Patentee before: Jiangsu Shine Technology Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100106 |
|
| CX01 | Expiry of patent term |