CN201425573Y - Maintenance-free device for measuring dust concentration - Google Patents
Maintenance-free device for measuring dust concentration Download PDFInfo
- Publication number
- CN201425573Y CN201425573Y CN2009200915861U CN200920091586U CN201425573Y CN 201425573 Y CN201425573 Y CN 201425573Y CN 2009200915861 U CN2009200915861 U CN 2009200915861U CN 200920091586 U CN200920091586 U CN 200920091586U CN 201425573 Y CN201425573 Y CN 201425573Y
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- light source
- measuring
- referential
- dust
- measurement
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Abstract
The utility model relates to a maintenance-free device for measuring dust concentration. The device comprises a casing; a general light source generator and a closed referential cavity are encapsulated in the casing; referential gas is filled in the referential cavity; a referential end optical receiver and a referential light source joint are correspondingly communicated on the opposite chamber walls of the referential cavity; a measuring light source joint and a measuring terminal optical receiver in opposite arrangement are arranged in the casing; a dust measuring port intercross with the optical path from the measuring light source joint to the measuring terminal optical receiver is formed on the casing and is communicated with the outside; a light-emitting hole and a light intake holeare correspondingly formed at the joint of the side wall of the dust measuring port and the optical path; and the general light source generator is correspondingly connected with the measuring lightsource joint and the referential light source joint through two optical fibers for equally dividing the general light beam. When the device is used, quick on-site dust concentration measurement is achieved, and the measured data can be synchronously uploaded; meanwhile, the measuring accuracy is guaranteed, and full automatic and maintenance-free dust concentration monitoring operation is truly realized.
Description
Technical field
The utility model relates to a kind of powder concentration measurement 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 dust measurement passage, utilize optical transmitting set and dust sensor that the dust concentration in the dust measurement passage is measured then, again mixed gas is extracted out at last and gone.Thisly measure the mode of dust concentration and the powder filtering filtration in the mix dust gas after measuring must be fallen by extracting sample gas, 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 has brought great inconvenience for the use of on-line measurement instrument; In addition, because the light intensity difference of emission when optical transmitting set detects at every turn, even detect the dust of same concentrations, the received measuring-signal of dust sensor 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 non-maintaining powder concentration measurement device that directly is placed in the tested gaseous environment monitoring dust content, and 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 non-maintaining powder concentration measurement device, this device comprises housing, be packaged with total light source generator and airtight reference chamber in the housing, reference cavity is indoor to have reference gas, is communicated with reference edge optical receiver and reference light source joint with reference to correspondence on the relative locular wall of chamber; Also be provided with the measurement light source joint and the measuring junction optical receiver of positioned opposite in the housing, described housing is provided with the dust measurement mouth that intersects with measurement light source joint to the light path of measuring junction optical receiver, this dust measurement mouth is in communication with the outside, corresponding light hole and the light well of offering with the intersection of described light path of dust measurement oral-lateral wall; Total light source generator is connected to measurement light source joint and reference light source joint by two optical fiber correspondences of dividing equally total light beam.
Described dust measurement mouth is the breach vertical perforation, that Open Side Down that is formed to the housing sunken inside by the housing outer wall.
The utility model is a kind of will the sampling and the powder concentration measurement device finished together of measurement function, this device is placed directly in the tested place in use, by optical fiber total light source is equally divided into two-beam, a branch of light conducts to reference to cavity, utilize the reference edge optical receiver to carry out the timing Zero calibration, another Shu Guang conducts to the dust measurement mouth, gather dust concentration value signal in the external environment in real time by the measuring junction optical receiver, after the signal of measuring junction and reference edge being compared processing, show again and upload through the external treatment system, so, tested dusty gas for same concentrations, no matter how the light intensity that total light source generator sends changes, can both guarantee to obtain the consistent result that records, make measured value can reflect the content of dust in the test environment more accurately.In addition, 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 realized monitoring the function of dust concentration non-maintainingly.Moreover this device utilizes optical fiber to carry out light to connect, and is not subjected to the restriction of space outerpace position when making each device in the layout housing of this device, installs, use is more flexible, and topology layout can be more reasonable, and applicability is stronger.
Dust measurement mouth of the present utility model is arranged to the breach that Open Side Down, has played the effect that prevents light hole and light well position laying dust, has guaranteed the signal collected dust concentration that can really reflect tested place.
When the utility model uses, fast measuring dust concentration at the scene, and upload measurement data synchronously, and guaranteed measuring accuracy again simultaneously, really realized monitoring dust concentration full-automatic, non-maintainingly; Be applicable under the coal mine, the dust measuring needs of occasion such as mine, plant working place, be particularly suitable in the mine that contains gas or coal dust explosion hazard, using.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of non-maintaining powder concentration measurement device shown in Figure 1, this device comprises housing, be packaged with total light source generator 6 and airtight reference chamber 2 in the housing, with reference to having reference gas in the chamber 2, this reference gas is clean air, is communicated with reference edge optical receiver 3 and reference light source joint 1 with reference to correspondence on the relative locular wall of chamber 2; Also be provided with the measurement light source joint 5 and the measuring junction optical receiver 4 of positioned opposite in the housing, housing is provided with the dust measurement mouth 7 that intersects with measurement light source joint 5 to the light path of measuring junction optical receiver 4, this dust measurement mouth is in communication with the outside, corresponding light hole and the light well of offering with the intersection of described light path of the sidewall of dust measurement mouth 7; Total light source generator 6 is connected to measurement light source joint 5 and reference light source joint 1 by two optical fiber correspondences of dividing equally total light beam.Above-mentioned dust measurement mouth 7 is the breach vertical perforation, that Open Side Down that formed to the housing sunken inside by the housing outer wall.
Claims (2)
1. non-maintaining powder concentration measurement device, it is characterized in that: this device comprises housing, be packaged with total light source generator and airtight reference chamber in the housing, reference cavity is indoor to have reference gas, is communicated with reference edge optical receiver and reference light source joint with reference to correspondence on the relative locular wall of chamber; Also be provided with the measurement light source joint and the measuring junction optical receiver of positioned opposite in the housing, described housing is provided with the dust measurement mouth that intersects with measurement light source joint to the light path of measuring junction optical receiver, this dust measurement mouth is in communication with the outside, corresponding light hole and the light well of offering with the intersection of described light path of dust measurement oral-lateral wall; Total light source generator is connected to measurement light source joint and reference light source joint by two optical fiber correspondences of dividing equally total light beam.
2. non-maintaining 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 housing outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200915861U CN201425573Y (en) | 2009-05-27 | 2009-05-27 | Maintenance-free device for measuring dust concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200915861U CN201425573Y (en) | 2009-05-27 | 2009-05-27 | Maintenance-free device for measuring dust concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425573Y true CN201425573Y (en) | 2010-03-17 |
Family
ID=42025024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200915861U Expired - Lifetime CN201425573Y (en) | 2009-05-27 | 2009-05-27 | Maintenance-free device for measuring dust concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425573Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865997A (en) * | 2016-06-07 | 2016-08-17 | 中国科学院合肥物质科学研究院 | Atmospheric raise dust concentration measuring device and method based on forward scattering principle |
| CN105891074A (en) * | 2016-04-12 | 2016-08-24 | 东南大学 | Dust concentration image collecting device and collecting method |
| CN108362618A (en) * | 2018-03-21 | 2018-08-03 | 杭州春来科技有限公司 | Dust instrument automated calibration system and method |
| CN108844870A (en) * | 2018-08-08 | 2018-11-20 | 重庆交通大学 | PM based on optical fiber structure10And PM2.5Detection instrument device and system |
| CN114739872A (en) * | 2022-03-29 | 2022-07-12 | 安徽理工大学 | Intrinsic safety explosion-proof type photoacoustic spectrum dust detection device |
-
2009
- 2009-05-27 CN CN2009200915861U patent/CN201425573Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891074A (en) * | 2016-04-12 | 2016-08-24 | 东南大学 | Dust concentration image collecting device and collecting method |
| CN105891074B (en) * | 2016-04-12 | 2018-11-23 | 东南大学 | A kind of dust concentration image collecting device and acquisition method |
| CN105865997A (en) * | 2016-06-07 | 2016-08-17 | 中国科学院合肥物质科学研究院 | Atmospheric raise dust concentration measuring device and method based on forward scattering principle |
| CN108362618A (en) * | 2018-03-21 | 2018-08-03 | 杭州春来科技有限公司 | Dust instrument automated calibration system and method |
| CN108844870A (en) * | 2018-08-08 | 2018-11-20 | 重庆交通大学 | PM based on optical fiber structure10And PM2.5Detection instrument device and system |
| CN108844870B (en) * | 2018-08-08 | 2021-09-21 | 重庆交通大学 | PM based on optical fiber structure10And PM2.5Probe instrument apparatus and system |
| CN114739872A (en) * | 2022-03-29 | 2022-07-12 | 安徽理工大学 | Intrinsic safety explosion-proof type photoacoustic spectrum dust detection device |
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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: 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 |