CN201382889Y - Detection device for dust measuring instrument - Google Patents
Detection device for dust measuring instrument Download PDFInfo
- Publication number
- CN201382889Y CN201382889Y CN200920032624U CN200920032624U CN201382889Y CN 201382889 Y CN201382889 Y CN 201382889Y CN 200920032624 U CN200920032624 U CN 200920032624U CN 200920032624 U CN200920032624 U CN 200920032624U CN 201382889 Y CN201382889 Y CN 201382889Y
- Authority
- CN
- China
- Prior art keywords
- dust
- measuring
- measuring instrument
- dusting fan
- communicated
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a detection device for a dust measuring instrument, which comprises a measuring pipeline. An electronic dust generator, a dust mixer and a rectifier are arranged at the inlet end of the measuring pipeline and the electronic dust generator is connected with an oil-free air compressor; an anemometer and a sampling nozzle are arranged on an intermediate measuring section of the measuring pipeline and a window is also formed on the circumference of the intermediate measuring section of the measuring pipeline; the outlet end of the measuring pipeline is communicated with an air inlet opening of a dusting fan, an air outlet opening of the dusting fan is communicated with a water-bath dust collector, the dusting fan is connected with a frequency-variable motor and a frequency converter is arranged on the frequency-variable motor. The detection device is fully independent, high in controllability and simple in operation, provides the detection state by air speed adjustment, automatic dust generation and airflow conditioning, and ensures that the higher-accuracy dust concentration content is provided for the dust measuring instrument and enhances the detection accuracy of the dust measuring instrument.
Description
Technical field
The utility model belongs to the checkout equipment technical field, relates to the device that a kind of instrument for the measurement dust provides detection means, is specifically related to a kind of dust measuring instrument pick-up unit.
Background technology
Coal dust is except constituting the harm health, also there is the danger of coal dust explosion, in the etesian explosion accident in colliery, having all is caused by coal dust explosion more than 85%, in " safety regulations in coal mine ", special provision the control and the detection of dust, the instrument that now is used to measure dust is many, as the direct-reading dust measurement, dust sensor, dust sampler etc., but because the environment of simulation generation dust is relatively more difficult, the means that are used to detect are difficult to be possessed productive capacity often and but can not possess detection means to realize, has restricted the development of dust measuring instrument.
Summary of the invention
The purpose of this utility model provides a kind of dust measuring instrument pick-up unit, solve the difficulty of instrument aspect check and the manufacture difficulty of different dust atmospheres that detect dust effectively, solved the problem that is difficult to realize the dust measuring instrument is carried out high Precision Detection in the prior art.
The technical scheme that the utility model adopted is, a kind of dust measuring instrument pick-up unit comprises measuring channel, is disposed with electronics powder producer, dust mixer and rectifier at the entrance point of measuring channel, and the electronics powder producer is connected with oilless air compressor; Middle measuring section at measuring channel is provided with wind gage, sampling mouth, also has window on the middle measuring section circumference of measuring channel; The endpiece of measuring channel is communicated with the air inlet of dusting fan, and the exhaust outlet of dusting fan is communicated with the water-bath dust-precipitator, and dusting fan is connected with variable-frequency motor.
Pick-up unit of the present utility model, controlled dust can take place and the environment of measurement is provided by one of artificial manufacturing, provide a detection means very practical, that degree of accuracy is high for detecting the dust measuring instrument, solved the difficulty of instrument aspect check and the manufacture difficulty of different dust atmospheres that detect dust effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is a principle of work block diagram of the present utility model.
Among the figure, 1. electronic type powder producer, 2. dust mixer, 3. rectifier, 4. measuring channel, 5. wind gage, 6. sampling mouth, 7. dusting fan, 8. variable-frequency motor, 9. support, 10. oilless air compressor, 11. water-bath dust-precipitators, 12. windows, 13. frequency converters.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As Fig. 1, the structure of the utility model device embodiment is, comprises the measuring channel 4 that is placed on the support 9, is disposed with electronics powder producer 1, dust mixer 2 and rectifier 3 at the entrance point of measuring channel 4, and electronics powder producer 1 is connected with oilless air compressor 10; Middle measuring section at measuring channel 4 is provided with wind gage 5, sampling mouth 6, also has window 12 on the middle measuring section circumference of measuring channel 4, and this window 12 is used to put into dust measuring instrument to be detected; The endpiece of measuring channel 4 is communicated with the air inlet of dusting fan 7, the exhaust outlet of dusting fan 7 is communicated with water-bath dust-precipitator 11, dusting fan 7 is connected with variable-frequency motor 8, have frequency converter 13 on the variable-frequency motor 8, the adjustment of wind speed relies on the speed governing of 13 pairs of variable-frequency motors 8 of frequency converter fully, its adjustable-speed wide ranges, good stability, no saltus step phenomenon can realize continuous stepless time adjustment.
Measuring channel 4 is to be used for to the test place of sampling of dust measuring instrument, and the mixed airflow situation that shows by wind gage 5 by 6 samplings of sampling mouth, provides dust concentration content than high accuracy to ensure to the dust measuring instrument.
Dusting fan 7 is parts that air-flow power is provided for whole device, carries out the speed adjustment by 13 pairs of variable-frequency motors of frequency converter 8, makes dusting fan 7 produce controlled wind speed.
Water-bath dust-precipitator 11 is used to recycle dust, can effectively guarantee measurement environment not by dust pollution, reclaims dust efficient and reaches more than 95%.
As Fig. 2, the pick-up unit course of work of the present utility model is, dust measuring instrument to be detected is put in the measuring channel 4 by window 12, start variable-frequency motor 8 and drive dusting fan 7 work generation air-flows, start oilless air compressor 10 then, by producing gaseous tension is sent some by 1 control of electronics powder producer dust, combing through dust mixer 2 and 3 pairs of mix dust air-flows of rectifier, form uniform dust air-flow concentration and enter measuring channel 4 stage casings, mixed airflow situation that shows by wind gage 5 and the sampling result by sampling mouth 6, in time regulate variable-frequency motor 8 by frequency converter 13, make the rotating speed of dusting fan 7 meet the requirements, ensure to the dust measuring instrument dust concentration content than high accuracy is provided, the mixed airflow guiding that dusting fan 7 will flow through simultaneously enters in the water-bath dust-precipitator 11, the recycling dust.
Pick-up unit of the present utility model establishes one's own system fully, controllability is strong, by the wind speed adjustment, send out dirt, distinguished and admirable combing to detected state is provided automatically, simple to operate, ensure to the dust measuring instrument dust concentration content than high accuracy is provided, the accuracy that raising detects the dust measuring instrument provides a very practical detection means for detecting the dust measuring instrument.
Claims (1)
1, a kind of dust measuring instrument pick-up unit is characterized in that, comprises measuring channel (4),
Entrance point at measuring channel (4) is disposed with electronics powder producer (1), dust mixer (2) and rectifier (3), and electronics powder producer (1) is connected with oilless air compressor (10);
Middle measuring section at measuring channel (4) is provided with wind gage (5), sampling mouth (6), also has window (12) on the middle measuring section circumference of measuring channel (4);
The endpiece of measuring channel (4) is communicated with the air inlet of dusting fan (7), and the exhaust outlet of dusting fan (7) is communicated with water-bath dust-precipitator (11), and dusting fan (7) is connected with variable-frequency motor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032624U CN201382889Y (en) | 2009-04-16 | 2009-04-16 | Detection device for dust measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032624U CN201382889Y (en) | 2009-04-16 | 2009-04-16 | Detection device for dust measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382889Y true CN201382889Y (en) | 2010-01-13 |
Family
ID=41526361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920032624U Expired - Fee Related CN201382889Y (en) | 2009-04-16 | 2009-04-16 | Detection device for dust measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382889Y (en) |
Cited By (4)
| 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 |
| CN104237095A (en) * | 2014-10-13 | 2014-12-24 | 北京市环境保护科学研究院 | Rising dust discharge measurement system and method in road sweeping process |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN104990846A (en) * | 2015-06-24 | 2015-10-21 | 江苏大学 | Calibration method for medicine powder aerosol concentration sensor |
-
2009
- 2009-04-16 CN CN200920032624U patent/CN201382889Y/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN104237095A (en) * | 2014-10-13 | 2014-12-24 | 北京市环境保护科学研究院 | Rising dust discharge measurement system and method in road sweeping process |
| CN104990846A (en) * | 2015-06-24 | 2015-10-21 | 江苏大学 | Calibration method for medicine powder aerosol concentration sensor |
| CN104990846B (en) * | 2015-06-24 | 2017-12-29 | 江苏大学 | A kind of scaling method of medicinal powder aerosol concentration sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103499512B (en) | Air-pressure-adjustable performance testing device for air filtering material and application thereof | |
| CN205538672U (en) | Particulate matter volume concentration detection device in air based on laser light scattering principle | |
| CN103604733B (en) | The method of dust atmosphere analogue means and demarcation dust concentration tester thereof | |
| CN201382889Y (en) | Detection device for dust measuring instrument | |
| CN109099001B (en) | Method for measuring efficiency of induced draft fan of power station boiler | |
| CN101710030A (en) | System and method for testing performance of cross flow fan | |
| CN104296958A (en) | Coal mine underground PM2.5 concentration simulation detecting system | |
| CN101979968B (en) | Device and method for testing air quality sensor and air flow sensor | |
| CN101762407B (en) | Radiation environment high flow rate automatic aerosol sampler | |
| CN105300681B (en) | A kind of electro spindle temperature and heat distortion test device | |
| CN207906130U (en) | A kind of axial flow blower test system | |
| CN102133496B (en) | Dust filtering performance testing method and system of air filter for cab of vehicle on road | |
| CN101008588A (en) | Device and method for measuring total amount of pollutants from motor vehicles and consumption of fuel | |
| CN211373930U (en) | Online building gas tightness detection device | |
| CN203964959U (en) | A kind of stockyard spontaneous combustion of coal pick-up unit | |
| CN207423933U (en) | A kind of cable tunnel gas controlling device | |
| CN107543667A (en) | Building doors and windows air-tightness automatic checkout system and control method | |
| CN201000394Y (en) | Device for measuring gross amount of pollutant discharging of motor vehicle | |
| CN203009263U (en) | Air compressor performance test board for vehicle | |
| CN106949957A (en) | It is a kind of to have the measurement apparatus for flowing silencer element acoustic characteristic and flow behavior under environment | |
| CN217107523U (en) | Testing device and testing system for fan performance | |
| CN209342331U (en) | The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency | |
| CN107271611A (en) | The Handheld formaldehyde detector used at a distance | |
| CN201548399U (en) | Aviation air cycle machine program controlled testing system | |
| CN203981545U (en) | A kind of PM2.5 monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20130416 |