CN201425571Y - Device for measuring dust concentration - Google Patents
Device for measuring dust concentration Download PDFInfo
- Publication number
- CN201425571Y CN201425571Y CN2009200915289U CN200920091528U CN201425571Y CN 201425571 Y CN201425571 Y CN 201425571Y CN 2009200915289 U CN2009200915289 U CN 2009200915289U CN 200920091528 U CN200920091528 U CN 200920091528U CN 201425571 Y CN201425571 Y CN 201425571Y
- Authority
- CN
- China
- Prior art keywords
- light
- dust
- optical receiver
- referential
- measuring
- 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 - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a device for measuring dust concentration. The device comprises an encapsulation casing with a light source emitter arranged therein; a measuring terminal optical receiveris arranged on the direct light path of the light source emitter; a dust measuring port intercross with the optical path between the light source emitter and the measuring terminal optical receiver is formed on the encapsulation casing and is communicated with the outside; a light-emitting hole and a light intake hole are correspondingly formed on the side wall of the dust measuring port; a rotatable light-proof mirror is arranged in the optical path from the light source emitter to the light-emitting hole; a referential end optical receiver is arranged in the reflected optical path through the light-proof mirror; a referential cavity, through which light can penetrate, is formed in the optical path from the light-proof mirror to the referential end optical receiver; and referential gas is filled in the referential cavity. The device solves the problem that the prior dust concentration on-line measuring device needs replace a filter device periodically, and can prevent the inaccuratemeasurement results caused by light source intensity emission error at the same time.
Description
Technical field
The utility model relates to a kind of powder concentration measurement device, belongs to electronic measuring device.
Background technology
Conventional online formula powder concentration measurement device mainly is that the mixed gas that adopts air extractor will have dust is extracted into the measurement passage, then its dust concentration is measured, and mixed gas is extracted out at last again and is gone.It is this that to measure the shortcoming of dust concentration be conspicuous by extracting sample gas, because the gas that extracts is the mixed gas with dust, but most electronic components do not have dust reduction capability, be the protection components and parts, powder filtering filtration in the mix dust gas after measuring need be fallen, this just needs to install filtration units such as filter membrane, but after filter membrane works long hours, dust will bulk deposition, if untimely replacing, the measurement passage of bleeding will seriously stop up and cause and can not normally measure, and promptly needs the size cases according to the measurement environment dust concentration, the periodic replacement filter membrane, this will be great inconvenience for the on-line measurement instrument; In addition, because the light intensity difference of emission when the light emitted device detects at every turn, even detect the dust of same concentrations, the received measuring-signal of measuring junction optical receiver also can be different, therefore the powder concentration measurement value can there are differences, and causes the powder concentration measurement result not accurate.
The utility model content
The purpose of this utility model provides a kind of powder concentration measurement device that uses in the tested gaseous environment that directly is placed on, problem with the need periodic replacement filtration unit that solves existing dust concentration on-line measurement device, simultaneously, this device can be eliminated not problem accurately of the measurement result that caused by the transmitting illuminant intensity error.
For achieving the above object, the utility model adopts following technical scheme: a kind of powder concentration measurement device, this device comprises an encapsulating housing, be provided with the light emitted device in this encapsulating housing, the direct projection light path of this light emitted device is provided with the measuring junction optical receiver, has the dust measurement mouth that intersects with light emitted device to the light path of measuring junction optical receiver on the described encapsulating housing, this dust measurement mouth is in communication with the outside, correspondence is provided with light hole and light well on the sidewall of dust measurement mouth, described light emitted device to the light path of light hole is provided with rotating shading mirror, light path through the shading mirror reflection is provided with the reference edge optical receiver, described shading mirror to the light path of reference edge optical receiver is provided with the reference chamber of light transmissive, and reference cavity is indoor to be reference gas.
Described dust measurement mouth is the breach vertical perforation, that Open Side Down that is formed to the housing sunken inside by the encapsulating housing outer wall.
The wall of described breach two side is positive splayed and tilts.
The inwall of described encapsulating housing is provided with light-absorbing coating.
Corresponding position with reference to chamber is provided with view window on the described encapsulating housing.
The beneficial effects of the utility model are: powder concentration measurement device of the present utility model, directly be placed in use in the tested dusty gas environment, the light beam that the light emitted device sends is reflected by shading mirror earlier, light beam after the reflection arrives the reference edge optical receiver after by the reference cavity that clean gas is housed and carries out the timing Zero calibration, arrive the measuring junction optical receiver after adjusting shading mirror then and making light emitted device emitted light beams by the dust measurement mouth, make concerning the tested dusty gas of same concentrations, no matter how the light intensity of light emitted device emission changes, it is stable that the value of the light intensity that the light intensity relative reference end optical receiver that the measuring junction optical receiver receives receives keeps, and can make measurement result more accurate.
The utility model needn't be gone again and be extracted sample gas and gather the dust concentration value signal, so need not be equipped with air extractor, does not also have problems such as filtration unit and periodic replacement filter membrane are installed certainly, has really realized monitoring the function of dust concentration full-automatic, non-maintainingly.The utility model is simple and practical, volume is small and exquisite, be convenient to assembling, and cost is low, uses more conveniently, is applicable under the coal mine, the dust measuring of occasions such as mine, plant working place, is particularly suitable for using in the mine that contains gas or coal dust explosion hazard.
In addition, dust measurement mouth of the present utility model is arranged to the breach that Open Side Down, and make the breach two side be positive splayed inclination, and played the effect that prevents light hole and light well position laying dust, guaranteed the signal collected dust concentration that can really reflect tested place; This device is provided with light-absorbing coating on the inwall of closed cavity, can absorb unnecessary refracted ray, has guaranteed the accuracy of measuring; The view window that is provided with on the cavity has made things convenient for the working condition of observing this sensor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
In conjunction with Fig. 1 the utility model is described: a kind of powder concentration measurement device, this measurement mechanism comprises that an inwall is provided with the encapsulating housing 6 of light-absorbing coating, be provided with laser instrument 3 in this encapsulating housing 6, on the direct projection light path of laser instrument 3, be provided with measuring junction optical receiver 5, has the dust measurement mouth 7 that intersects with laser instrument 3 to the light path of measuring junction optical receiver 5 on the described housing 6, this dust measurement mouth 7 is vertical perforations of being formed to the chamber sunken inside by housing 6 outer walls, the breach that Open Side Down, the positive splayed of being the wall of described dust measurement mouth 7 two sides tilt and the two side on correspondence be provided with light hole 8 and light well 9, the light path of the light hole of described laser instrument 3 to dust measurement mouth 7 sidewalls is provided with shading mirror 4, light path through shading mirror 4 reflections is provided with reference edge optical receiver 1, described shading mirror 4 is provided with the reference chamber 2 of light transmissive to the light path of reference edge optical receiver 5, with reference to being reference gas in the chamber 2, corresponding position with reference to chamber 2 is provided with view window.
Claims (5)
1. powder concentration measurement device, it is characterized in that: this device comprises an encapsulating housing, be provided with the light emitted device in this encapsulating housing, the direct projection light path of this light emitted device is provided with the measuring junction optical receiver, has the dust measurement mouth that intersects with light emitted device to the light path of measuring junction optical receiver on the described encapsulating housing, this dust measurement mouth is in communication with the outside, correspondence is provided with light hole and light well on the sidewall of dust measurement mouth, described light emitted device to the light path of light hole is provided with rotating shading mirror, light path through the shading mirror reflection is provided with the reference edge optical receiver, described shading mirror to the light path of reference edge optical receiver is provided with the reference chamber of light transmissive, and reference cavity is indoor to be reference gas.
2. powder concentration measurement device according to claim 1 is characterized in that: described dust measurement mouth is the breach vertical perforation, that Open Side Down that is formed to the housing sunken inside by the encapsulating housing outer wall.
3. powder concentration measurement device according to claim 2 is characterized in that: the wall of described breach two side is positive splayed and tilts.
4. powder concentration measurement device according to claim 1 and 2 is characterized in that: the inwall of described encapsulating housing is provided with light-absorbing coating.
5. powder concentration measurement device according to claim 1 and 2 is characterized in that: corresponding position with reference to chamber is provided with view window on the described encapsulating housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200915289U CN201425571Y (en) | 2009-05-26 | 2009-05-26 | Device for measuring dust concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200915289U CN201425571Y (en) | 2009-05-26 | 2009-05-26 | Device for measuring dust concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425571Y true CN201425571Y (en) | 2010-03-17 |
Family
ID=42025022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200915289U Expired - Lifetime CN201425571Y (en) | 2009-05-26 | 2009-05-26 | Device for measuring dust concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425571Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN106644867A (en) * | 2016-12-30 | 2017-05-10 | 聚光科技(杭州)股份有限公司 | Device and method for detecting particulate matters in gases |
| CN106840987A (en) * | 2017-03-16 | 2017-06-13 | 贵州大学 | A kind of mining dust concentration measuring device |
| CN107314958A (en) * | 2017-06-02 | 2017-11-03 | 宁波爱立德汽车部件有限公司 | A kind of band makes the laser dust apparatus for measuring concentration and method of device for mark by oneself |
| CN108700514A (en) * | 2016-04-27 | 2018-10-23 | 株式会社小松制作所 | Optical sensor |
| CN112014280A (en) * | 2020-08-27 | 2020-12-01 | 苏州亿利安机电科技有限公司 | On-line detection method of direct-reading dust concentration measuring instrument |
-
2009
- 2009-05-26 CN CN2009200915289U patent/CN201425571Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155222A (en) * | 2014-08-29 | 2014-11-19 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN104155222B (en) * | 2014-08-29 | 2016-08-24 | 中煤科工集团重庆研究院有限公司 | Easily maintain optical dust concentration detection device |
| CN108700514A (en) * | 2016-04-27 | 2018-10-23 | 株式会社小松制作所 | Optical sensor |
| US10801958B2 (en) | 2016-04-27 | 2020-10-13 | Komatsu Ltd. | Optical sensor |
| CN106644867A (en) * | 2016-12-30 | 2017-05-10 | 聚光科技(杭州)股份有限公司 | Device and method for detecting particulate matters in gases |
| CN106644867B (en) * | 2016-12-30 | 2023-08-29 | 聚光科技(杭州)股份有限公司 | Device and method for detecting particulate matters in gas |
| CN106840987A (en) * | 2017-03-16 | 2017-06-13 | 贵州大学 | A kind of mining dust concentration measuring device |
| CN107314958A (en) * | 2017-06-02 | 2017-11-03 | 宁波爱立德汽车部件有限公司 | A kind of band makes the laser dust apparatus for measuring concentration and method of device for mark by oneself |
| CN107314958B (en) * | 2017-06-02 | 2023-10-03 | 宁波爱立德汽车部件有限公司 | Laser dust concentration measuring device with self-calibration device and method |
| CN112014280A (en) * | 2020-08-27 | 2020-12-01 | 苏州亿利安机电科技有限公司 | On-line detection method of direct-reading dust concentration measuring instrument |
| CN112014280B (en) * | 2020-08-27 | 2023-11-24 | 苏州亿利安机电科技有限公司 | On-line detection method of direct-reading dust concentration measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201425571Y (en) | Device for measuring dust concentration | |
| CN102183492B (en) | Three-band integrated atmospheric aerosol particle scattering coefficient measuring instrument and measuring method | |
| CN203616851U (en) | Laser methane concentration sensor | |
| CN103439232A (en) | Obscuration type soot particle concentration measuring method and device thereof | |
| CN101603912B (en) | Direct-reading dust concentration detector | |
| CN206114522U (en) | Mining dust -protection type laser gas detection instrument air chamber | |
| CN106053351A (en) | In-situ flue gas online measuring device | |
| CN215768143U (en) | Smoke instrument device for measuring dust concentration | |
| CN205719923U (en) | Self-calibration air-breathing laser methane full-scale detection device | |
| CN107576601B (en) | Particle on-line detection and analysis instrument suitable for urban rail transit places | |
| CN201425573Y (en) | Maintenance-free device for measuring dust concentration | |
| CN209167066U (en) | A kind of novel air corpuscular counter | |
| CN108562524A (en) | Laser light scattering particle analyte detection device | |
| CN106885869B (en) | Cigarette glows detector | |
| CN210322765U (en) | Safety device with coal mine safety production risk monitoring function | |
| CN205826519U (en) | A kind of flue gas on-line measurement device in situ | |
| CN208847654U (en) | A kind of range switching of transmission-type smoke meter and self-checking device | |
| CN201425570Y (en) | Device for measuring dust concentration | |
| CN203643340U (en) | Fluorescence reaction detector | |
| CN201477024U (en) | Direct reading dust concentration detector | |
| CN109877109B (en) | Optical glass window self-cleaning air knife control system and device for remote measurement and remote sensing | |
| CN207575994U (en) | The filter of dust accumulation can be detected automatically | |
| CN201210141Y (en) | Laser gas concentration measuring instrument | |
| CN208736796U (en) | It is a kind of directly to measure formula gaseous pollutant emission monitoring device | |
| CN211235504U (en) | Multiple reflection long optical path gas chamber of continuous online flue gas monitoring system |
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: ZHEZHOU GUANGLI SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGLI SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD., ZHENGZHOU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou Patentee after: Zhengzhou GL Tech Company Address before: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou Patentee before: Guangli Science & Technology Development Co., Ltd., Zhengzhou |
|
| CP03 | Change of name, title or address |
Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Power Polytron Technologies Inc Address before: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou GL Tech Company |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |
|
| CX01 | Expiry of patent term |