CN201177594Y - Dust concentration sensor - Google Patents
Dust concentration sensor Download PDFInfo
- Publication number
- CN201177594Y CN201177594Y CNU2008200289647U CN200820028964U CN201177594Y CN 201177594 Y CN201177594 Y CN 201177594Y CN U2008200289647 U CNU2008200289647 U CN U2008200289647U CN 200820028964 U CN200820028964 U CN 200820028964U CN 201177594 Y CN201177594 Y CN 201177594Y
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- dust concentration
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Abstract
The utility model discloses a dust concentration sensor, which comprises an air inlet formed on a housing and communicated with a dark room in the housing, a laser generator arranged in the channel of the air inlet, a window formed on the side wall of the dark room, a photoelectric converter arranged in the window, an exhaust hole connected with the air outlet of the dark room through a pipe, an exhaust fan arranged in the pipe, a main control board connected with the photoelectric converter, and an interface socket, a setting keypad and a digital display screen respectively connected with the main control board through wires. The dust concentration sensor has the advantages of simple structure, light weight, convenient use, rapid and accurate measurement, high sensitivity and stable performance, and can preset a K value and can directly display and output the dust mass concentration. The dust concentration sensor is mainly used for environmental monitoring in various dust work places, public places, etc.
Description
Technical field
The utility model belongs to Environmental security detection technique field, relates to a kind of sensor of dust concentration.
Background technology
Present measurement for dust concentration, no matter be to adopt dust sampler or direct-reading meter device, all need the on-site manual operation, so the surveying instrument automaticity of existing dust concentration is low, can not real-time automatic recording and the transmission measured data, can not realize the continuous remote monitoring and measure, for some high-risk occasions, manually be difficult to the place that enters, showed the deficiency of the surveying instrument of existing dust concentration especially.
Summary of the invention
The purpose of this utility model provides a kind of sensor of dust concentration, has solved to exist automaticity low in the prior art, can not real time record and the transmission measured data, can not realize continuous remote monitoring and the problem measured automatically.
The technical scheme that the utility model adopted is, a kind of sensor of dust concentration, comprise the housing that is provided with air intake opening, in housing, air intake opening is communicated with the darkroom of enclosure interior, in air intake opening and passage that the darkroom communicates, be provided with laser generator, the sidewall in darkroom has a window, be provided with photoelectric commutator in this window, the gas outlet in darkroom is connected with the exhausr port of housing sidewall by pipeline, is provided with air exhauster in the described pipeline, and photoelectric commutator is connected with master control borad, master control borad also respectively with the interface socket that is arranged on the housing window, keyboard is set, digital display screen connects by lead, and interface socket also is connected with laser generator.
Air intake opening is made into S type curve form.
Digital display screen adopts four LED charactron display modes.
The gas outlet is provided with a cowling panel, and this cowling panel is connected with a micromachine.
Interface socket includes data bus connection and power supply line simultaneously.
The beneficial effects of the utility model are measuring accuracy height, and the automaticity height has been realized real time record and transmission measured data, realizes continuous remote monitoring and measurement.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of the utility model embodiment;
Fig. 2 is the external structure synoptic diagram of the utility model embodiment;
Fig. 3 is a functional block diagram of the present utility model.
Among the figure, photoelectric commutator, 2. laser generator, 3. air intake opening, 4. the darkroom, 5. cowling panel, 6. air exhauster, 7. exhausr port, 8. master control borad, 9. interface socket, 10. keyboard, 11. digital display screens, 12. housings, 13. are set suspension ring are installed, 14. power module, 15. photoelectron measurement module, 16. modulation of source module, 17. the main control computing module, 18. show output module, 19. flow-control modules.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 1 is the inner structure synoptic diagram of the utility model dust sensor embodiment, in the upper end of housing 12 air intake opening 3 is installed, and air intake opening 3 feeds housing 12 inside, and air intake opening 3 is made into S type curve form, plays the effect of blocking housing 12 extraneous lights; In the passage of air intake opening 3, be provided with laser generator 2, the laser radiation of laser generator 2 is towards the below, air intake opening 3 is communicated with the darkroom 4 that is located at housing 12 inside, the sidewall in darkroom 4 has a window, be provided with photoelectric commutator 1 in this window, the gas outlet 14 in darkroom 4 is connected with exhausr port 7 by pipeline, is provided with air exhauster 6 in this pipeline, and exhausr port 7 is arranged on the sidewall of housing 12.Photoelectric commutator 1 is connected with master control borad 8, master control borad 8 respectively with interface socket 9, keyboard 10 is set, digital display screen 11 is connected, interface socket 9, keyboard 10 is set, digital display screen 11 is separately positioned on the surface window of housing 12.14 are provided with a cowling panel 5 in the gas outlet, are used for controlling the flow of exhaust.Housing 12 adopts the hard shell of steel, and the upper end of housing 12 is provided with installs suspension ring 13, and convenient the use hung.
Cowling panel 5 can manual shift, also can be by a minitype motor driving.
Digital display screen 11 adopts four LED charactron display modes.
Fig. 2 is the external structure synoptic diagram of the utility model dust sensor embodiment.Be provided with two in housing 12 upper ends of steel suspension ring 13 are installed, air intake opening 3 also is arranged on housing 12 upper surfaces, on housing 12, have four windows, a window is equipped with exhausr port 7, a window is equipped with interface socket 9, a window is equipped with keyboard 10 is set, and another window is equipped with digital display screen 11, keyboard 10 is set is connected with the master control borad 8 of digital display screen 11 with housing 12 inside.
Fig. 3 is the electrical appliance module schematic diagram of the utility model dust sensor.Electric part of the present utility model comprises power module 14, power module 14 is connected respectively with photoelectron measurement module 15, modulation of source module 16, main control computing module 17, flow-control module 19, and provide reliable and stable working power, operating voltage is that 9V～24V (intrinsic safety), working current are≤250mA, and main control computing module 17 is connected with demonstration output module 18.Power module 14 is main by interface socket 9 introducing power supplys.
The work of photoelectron measurement module 15 control photoelectric commutators 1 is responsible for photoelectron and is measured.
The work of modulation of source module 16 control laser generators 2 is responsible for laser radiation and is regulated.
Data processing and exchange are responsible in the work of main control computing module 17 control master control borads 8 and host computer auxiliary device.
Show the output module 18 responsible numerical value that show in real time, comprise interface socket 9 output datas, show real-time numerical value by digital display screen 11.
The work of flow-control module 19 control micromachines is controlled the folding of cowling panel 5 and is adjusted extraction flow.
Principle of work of the present utility model is that extraneous air enters darkroom 4 by the air intake opening 3 that covers extraneous light under the suction of air exhauster 6.When the airborne dust that swims is subjected to directional light irradiation that laser generator 2 sends in darkroom 4, the scattered light intensity of dust is proportional to mass concentration, its 90 ℃ of direction scattered lights convert photocurrent to through photoelectric commutator 1, umber of pulse in the unit interval that the photocurrent integrating circuit converts to scattered light is directly proportional in master control borad 8, calculate umber of pulse and can measure the relative mass concentration of dust, preset K value on the keyboard 10 by demarcating being provided with, the direct airborne dust mass concentration (mg/m of demonstration on digital display screen 11 during work
3), through sensor interface socket 9 data are passed to host computer simultaneously.
The utility model dust sensor is according to the explosion-proof design of Exib I grade in MT163-1997 " direct-reading dust concentration measurement instrument general technical specifications " and Q/3200SXSD001-2007 " GCG1000 type sensor of dust concentration " company standard and the GB3836.4-2000 standard, utilize to give swimming during the dust irradiates light in the darkroom, the scattered light intensity of dust is proportional to the principle of mass concentration under the certain condition of dust characteristic, thereby convert scattered light intensity to relative mass concentration that electric signal calculates dust, by presetting the mass concentration that the K value can directly calculate dust.The mass concentration that calculates dust directly shows by charactron and converts frequency signal to be exported, and uses for monitoring mining system or other TT﹠C system.Measuring error ± 15%, measurement range is 0.1mg/M
3～1000mg/M
3, signal output is 9V～24V (intrinsic safety), working current :≤250mA in 200Hz～1000Hz frequency signal, operating voltage, be characterized in: size and weight are light and handy, easy to use, measure quick and precisely, highly sensitive, stable performance, can preset the K value, directly show and export the dust mass concentration.Be mainly used in environmental monitorings such as various dust works place, public place, especially contain the continuous monitoring of total dust under the coal mine of gas or coal dust explosion hazard.
Claims (5)
1, a kind of sensor of dust concentration, it is characterized in that: comprise the housing (12) that is provided with air intake opening (3), in housing (12), air intake opening (3) is communicated with the darkroom (4) of housing (12) inside, in air intake opening (3) and passage that darkroom (4) communicate, be provided with laser generator (2), the sidewall in darkroom (4) has a window, be provided with photoelectric commutator (1) in this window, the gas outlet (14) in darkroom (4) is connected by the exhausr port (7) of pipeline with housing (12) sidewall, be provided with air exhauster (6) in the described pipeline, photoelectric commutator (1) is connected with master control borad (8), master control borad (8) also respectively with the interface socket (9) that is arranged on housing (12) window, keyboard (10) is set, digital display screen (11) connects by lead, and interface socket (9) also is connected with laser generator (2).
2, sensor of dust concentration according to claim 1 is characterized in that: described air intake opening (3) is made into S type curve form.
3, sensor of dust concentration according to claim 1 is characterized in that: described digital display screen (11) adopts four LED charactron display modes.
4, sensor of dust concentration according to claim 1 is characterized in that: described gas outlet (14) are provided with a cowling panel (5), and this cowling panel (5) is connected with a micromachine.
5, sensor of dust concentration according to claim 1 is characterized in that: described interface socket (9) includes data bus connection and power supply line simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200289647U CN201177594Y (en) | 2008-04-29 | 2008-04-29 | Dust concentration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200289647U CN201177594Y (en) | 2008-04-29 | 2008-04-29 | Dust concentration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201177594Y true CN201177594Y (en) | 2009-01-07 |
Family
ID=40217616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200289647U Expired - Fee Related CN201177594Y (en) | 2008-04-29 | 2008-04-29 | Dust concentration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201177594Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369426A (en) * | 2009-04-01 | 2012-03-07 | 新日本制铁株式会社 | Device and method for continuously measuring horizontal flux of falling particulate matter in atmosphere |
| CN102854115A (en) * | 2012-08-31 | 2013-01-02 | 常熟市德虞矿山机电有限公司 | Dust concentration detecting device |
| CN103323425A (en) * | 2013-05-28 | 2013-09-25 | 成都佳锂科技有限公司 | Fine particle sensor |
| CN103630475A (en) * | 2013-12-09 | 2014-03-12 | 北京航空航天大学 | Portable nano-particle counter based on dynamic light scattering method |
| CN103674798A (en) * | 2013-12-30 | 2014-03-26 | 合肥京东方光电科技有限公司 | Air dust detection instrument |
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintainable optical dust concentration detection device |
| CN104749075A (en) * | 2014-10-16 | 2015-07-01 | 北京汉王蓝天科技有限公司 | Air particle detecting device and method |
| CN104865174A (en) * | 2015-05-14 | 2015-08-26 | 西安理工大学 | PM2.5 detection apparatus and method |
| CN106769718A (en) * | 2016-08-14 | 2017-05-31 | 张文阁 | Dust investigating and dust detection method |
| CN106802261A (en) * | 2017-01-22 | 2017-06-06 | 江苏三联安全评价咨询有限公司 | A kind of apparatus for measuring dust concentration and its measuring method |
| CN107272527A (en) * | 2016-04-07 | 2017-10-20 | 上海凡贝机械有限公司 | Dust control system |
| CN109557004A (en) * | 2017-09-27 | 2019-04-02 | 田果成 | Detect cavity configuration, detection device, capture apparatus and terminal |
| CN115078192A (en) * | 2022-05-12 | 2022-09-20 | 昆明理工大学 | Method for measuring net settlement of PM on building surface |
-
2008
- 2008-04-29 CN CNU2008200289647U patent/CN201177594Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369426B (en) * | 2009-04-01 | 2013-05-08 | 新日铁住金株式会社 | Device and method for continuously measuring horizontal flux of falling particulate matter in atmosphere |
| CN102369426A (en) * | 2009-04-01 | 2012-03-07 | 新日本制铁株式会社 | Device and method for continuously measuring horizontal flux of falling particulate matter in atmosphere |
| CN102854115A (en) * | 2012-08-31 | 2013-01-02 | 常熟市德虞矿山机电有限公司 | Dust concentration detecting device |
| CN103323425A (en) * | 2013-05-28 | 2013-09-25 | 成都佳锂科技有限公司 | Fine particle sensor |
| CN103630475A (en) * | 2013-12-09 | 2014-03-12 | 北京航空航天大学 | Portable nano-particle counter based on dynamic light scattering method |
| CN103630475B (en) * | 2013-12-09 | 2016-04-13 | 北京航空航天大学 | Based on the portable nano grain count instrument of dynamic light scattering method |
| CN103674798A (en) * | 2013-12-30 | 2014-03-26 | 合肥京东方光电科技有限公司 | Air dust detection instrument |
| CN104155222B (en) * | 2014-08-29 | 2016-08-24 | 中煤科工集团重庆研究院有限公司 | Easy care optical profile type dust concentration detection device |
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintainable optical dust concentration detection device |
| CN104749075A (en) * | 2014-10-16 | 2015-07-01 | 北京汉王蓝天科技有限公司 | Air particle detecting device and method |
| CN104865174A (en) * | 2015-05-14 | 2015-08-26 | 西安理工大学 | PM2.5 detection apparatus and method |
| CN104865174B (en) * | 2015-05-14 | 2018-02-16 | 西安理工大学 | A kind of PM2.5 detection means and detection method |
| CN107272527A (en) * | 2016-04-07 | 2017-10-20 | 上海凡贝机械有限公司 | Dust control system |
| CN106769718A (en) * | 2016-08-14 | 2017-05-31 | 张文阁 | Dust investigating and dust detection method |
| CN106802261A (en) * | 2017-01-22 | 2017-06-06 | 江苏三联安全评价咨询有限公司 | A kind of apparatus for measuring dust concentration and its measuring method |
| CN109557004A (en) * | 2017-09-27 | 2019-04-02 | 田果成 | Detect cavity configuration, detection device, capture apparatus and terminal |
| CN115078192A (en) * | 2022-05-12 | 2022-09-20 | 昆明理工大学 | Method for measuring net settlement of PM on building surface |
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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: 20090107 Termination date: 20130429 |