CN201615883U - Dust concentration sensor - Google Patents
Dust concentration sensor Download PDFInfo
- Publication number
- CN201615883U CN201615883U CN2009203142973U CN200920314297U CN201615883U CN 201615883 U CN201615883 U CN 201615883U CN 2009203142973 U CN2009203142973 U CN 2009203142973U CN 200920314297 U CN200920314297 U CN 200920314297U CN 201615883 U CN201615883 U CN 201615883U
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- dust
- channel
- inlet channel
- outlet passageway
- sensor
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Abstract
The utility model relates to a dust concentration sensor. The dust concentration sensor comprises a dust sampling head, a dust channel and a draft fan, wherein the dust channel includes a dust inlet channel and a dust outlet channel serially communicated with each other; the dust sampling head is arranged at the inlet end of the dust inlet channel; the draft fan is arranged at the outlet end of the dust outlet channel; the dust inlet channel is arranged horizontally; the dust outlet channel is arranged vertically; and a dust detection chamber is formed at the joint of the dust outlet channel and the dust inlet channel. The dust outlet channel in the vertical arrangement facilitates the falling of the dust under the action of the draft fan and the self-gravity so as to prevent the dust deposition in the channel, thereby enhancing the measurement accuracy of the dust concentration sensor.
Description
Technical field
The utility model relates to a kind of sensor of dust concentration.
Background technology
At present, the dust passage of sensor of dust concentration generally has two kinds of forms, a kind of is all-in-one-piece, the front end of dust passage is provided with the dust sampling head, the rear end is provided with extraction fan, the dust sampling head is provided with the import of sample gas, sample gas enters from the import of sample gas, under the effect of extraction fan, discharges from the rear end of dust passage, another kind is a split, the dust passage is divided into two parts, connects by the darkroom between two parts, and the front end setting of a preceding part is by air intake opening, the rear end of rear section is provided with extraction fan, sample gas enters from the import of sample gas, through the darkroom, under the effect of extraction fan, enter rear section dust passage and discharge from the rear end, but no matter be all-in-one-piece dust passage or the dust passage that separately designs, its axis all is a level, and passage is longer, this just causes the easy laying dust of channel content, influences the measuring accuracy of sensor of dust concentration.
Fig. 1 is a kind of sensor of dust concentration of the prior art, draft tube 2 and the escape pipe 9 coaxial both sides that are installed in probing shell 5, its axis horizontal is provided with, the leading portion that the cavity of draft tube 2 constitutes the dust passage is the dust inlet channel, and the back segment that the cavity of escape pipe 9 constitutes the dust passage is the dust outlet passageway.The dust outlet passageway is communicated with by dust test chamber 10 with the dust inlet channel.Because dust inlet channel and outlet passageway all are horizontally disposed, dust is easy to be deposited in the passage, and also can laying dust in the dust sensing chamber, this all will influence measuring accuracy, in addition, because the tail end of dust outlet passageway is not provided with shade, so, the dust outlet passageway need be done longlyer, makes that the size of whole sensor is bigger, carries inconvenience.
The utility model content
The purpose of this utility model provides a kind of sensor of dust concentration, with the problem of the easy laying dust of dust channel content that overcomes sensor of dust concentration.
For addressing the above problem, the utility model adopts following technical scheme: a kind of sensor of dust concentration, comprise dust sampling head, dust passage and extraction fan, the dust passage comprises dust inlet channel and the dust outlet passageway that serial connection is communicated with, described dust sampling head is arranged at the inlet end of dust inlet channel, extraction fan is arranged on the outlet side of dust outlet passageway, the dust inlet channel is horizontally disposed, described dust outlet passageway is vertical layout, and the intersection of dust outlet passageway and dust inlet channel forms the dust test chamber.Because the dust outlet passageway arranges that vertically the dust in the passage is easy to, and can not be deposited in dust outlet passageway and the test chamber, so the measuring accuracy of this sensor of dust concentration is improved under the effect of extraction fan and dust self gravitation.
Be provided with light shield in the top of extraction fan in the described dust outlet passageway.This light shield can avoid extraneous light to inject influences measuring accuracy in the sensor of dust concentration; In addition, light shield is set after, outlet passageway can design shortlyer, thereby has reduced the size of whole sensor, and is easy to carry.
Described light shield is conical, and the vertex of a cone upwards is provided with.Light shield is designed to conical and the vertex of a cone is upwards installed, and so both can play the effect of shading, does not influence the dust of measuring in the sample gas again and discharges from the outlet of dust gas off-take, and dust can fall along the conical surface.
Description of drawings
Fig. 1 is the structural representation of existing a kind of sensor of dust concentration;
Fig. 2 main cut-open view of the present utility model;
Fig. 3 is the left view of Fig. 2.
Embodiment
At Fig. 2, among Fig. 3, sensor of dust concentration comprises dust sampling head 1, probing shell 5, the dust passage, extraction fan 7 and light supply apparatus 3, draft tube 2 is installed on the side of probing shell 5, with probing shell 5 at an angle of 90, cavity on the draft tube 2 constitutes the horizontal segment of dust passage, it is the dust inlet channel, cavity on the probing shell 5 constitutes vertical section of dust passage, it is the dust outlet passageway, described dust inlet channel and dust outlet passageway form right angle shape structure, inlet channel is communicated with outlet passageway, and connection place constitutes the dust test chamber, and light supply apparatus 3 is installed in the upper end of probing shell 5, be the dust test chamber below the light supply apparatus 3, photo-detector 4 is arranged on the side of probing shell 5, is positioned at the rear of light supply apparatus 3, and is parallel with light supply apparatus 3.Dust sampling head 1 is arranged on the front end of draft tube 2, the water conservancy diversion spool 8 double light shields of doing in the dust sampling head 1.Dust sampling head 1 is provided with the air intake opening that communicates with draft tube 2.Extraction fan 7 is arranged on the vertically lower end of section of dust passage, the top of extraction fan 7 is provided with the taper light shield 6 that the vertex of a cone makes progress, the cone bottom diameter of taper light shield 6 is greater than the minimum diameter of dust gas off-take, and Wai Mian light just can not enter the dust test chamber on dust gas off-take top like this.
Detecting sample gas enters from the air intake opening on the dust sampling head 1, enter the horizontal segment of dust passage through water conservancy diversion spool 8, under the effect of the extraction fan 7 that is arranged on the vertical section of dust passage lower end,, discharge from the outlet of the vertical section end of dust passage along the conical surface outflow of taper light shield 6 through vertical section of dust passage.Light supply apparatus 3 is installed in the upper end of probing shell 5, when sample gas flows through from the dust passage, scattering phenomenon can take place when containing the air-flow of dust in the light that is produced by light source, scattering of light degree and dust content have direct relation, the light of scattering is delivered to photo-detector 4, the processing of the light signal that photo-detector 4 is collected by the subsequent treatment system promptly can draw the dustiness of sample gas.
Claims (3)
1. sensor of dust concentration, comprise dust sampling head, dust passage and extraction fan, the dust passage comprises dust inlet channel and the dust outlet passageway that serial connection is communicated with, described dust sampling head is arranged at the inlet end of dust inlet channel, extraction fan is arranged on the outlet side of dust outlet passageway, the dust inlet channel is horizontally disposed, it is characterized in that: described dust outlet passageway is vertical layout, and the intersection of dust outlet passageway and dust inlet channel forms the dust test chamber.
2. sensor of dust concentration according to claim 1 is characterized in that: be provided with light shield in the top of extraction fan in the described dust outlet passageway.
3. sensor of dust concentration according to claim 2 is characterized in that: described light shield is for conical, and the vertex of a cone upwards is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203142973U CN201615883U (en) | 2009-11-06 | 2009-11-06 | Dust concentration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203142973U CN201615883U (en) | 2009-11-06 | 2009-11-06 | Dust concentration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615883U true CN201615883U (en) | 2010-10-27 |
Family
ID=43002250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203142973U Expired - Fee Related CN201615883U (en) | 2009-11-06 | 2009-11-06 | Dust concentration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615883U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136635A (en) * | 2015-08-14 | 2015-12-09 | 中国计量学院 | Dust emission detection system |
| CN105203709A (en) * | 2015-09-29 | 2015-12-30 | 哈尔滨东方报警设备开发有限公司 | Pumping-type gas circuit structure |
| CN106680168A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN106908364A (en) * | 2017-03-31 | 2017-06-30 | 北京瑞赛长城航空测控技术有限公司 | Mining intrinsic safety type dust sensing device based on light scattering method |
| CN109668810A (en) * | 2017-10-17 | 2019-04-23 | 重庆梅安森科技股份有限公司 | A kind of mining dust concentration sensor |
-
2009
- 2009-11-06 CN CN2009203142973U patent/CN201615883U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136635A (en) * | 2015-08-14 | 2015-12-09 | 中国计量学院 | Dust emission detection system |
| CN105136635B (en) * | 2015-08-14 | 2017-10-24 | 中国计量学院 | A kind of airborne dust detecting system |
| CN105203709A (en) * | 2015-09-29 | 2015-12-30 | 哈尔滨东方报警设备开发有限公司 | Pumping-type gas circuit structure |
| CN106680168A (en) * | 2017-02-20 | 2017-05-17 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN106680168B (en) * | 2017-02-20 | 2023-10-27 | 常熟市顺欣仪器仪表有限公司 | Dust concentration measuring device |
| CN106908364A (en) * | 2017-03-31 | 2017-06-30 | 北京瑞赛长城航空测控技术有限公司 | Mining intrinsic safety type dust sensing device based on light scattering method |
| CN109668810A (en) * | 2017-10-17 | 2019-04-23 | 重庆梅安森科技股份有限公司 | A kind of mining dust concentration sensor |
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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: ZHENGZHOU GL 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 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Zhengzhou GL Tech Company Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: Guangli Science & Technology Development Co., Ltd., Zhengzhou |
|
| CP01 | Change in the name or title of a patent holder |
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 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: Zhengzhou GL Tech Company |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20171106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |