CN205067286U - Particulate matter detection device - Google Patents
Particulate matter detection device Download PDFInfo
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- CN205067286U CN205067286U CN201520838143.XU CN201520838143U CN205067286U CN 205067286 U CN205067286 U CN 205067286U CN 201520838143 U CN201520838143 U CN 201520838143U CN 205067286 U CN205067286 U CN 205067286U
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- particle
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Abstract
The utility model discloses a particulate matter detection device, particulate matter detection device includes: a housing, import and export have on the casing, the light source, the measurement light that the light source sent is jeted into in the casing, the detector, the detector is used for converting the emergent light in the received casing into the signal of telecommunication to convey the analytic unit, it arrives to measure the rotation of light direction the angle of emergent light direction is the acute angle, the first fender body, one side of the first fender body is fixed measure that light is jeted into and the emergent light outgoing between the casing on, the edge of opposite side is facing measure the intersection of light sum emergent light in the casing, the analytic unit, the analytic unit is used for handling the signal of telecommunication to know the particulate matter content in the interior gas of casing. The utility model has the advantages of sensitivity is high.
Description
Technical field
The utility model relates to particle, particularly relates to particle pick-up unit in fluid.
Background technology
To the measurement of flue low concentration dust and air PM2.5, require more and more higher to instrumental sensitivity.Experimental study shows the highly sensitive in common rear scattering of front scattering, but the laser parasitic light of front scattering and hot spot have adverse effect to the zero point of detecting device and accuracy.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of highly sensitive, particle pick-up unit that accuracy is good.
Utility model object of the present utility model is achieved by the following technical programs:
A kind of particle pick-up unit, described particle pick-up unit comprises:
Housing, described housing has import and outlet;
Light source, the measurement light that described light source sends is injected in described housing;
Detector, described detector is used for the emergent light in the housing received to be converted to electric signal, and is sent to analytic unit; The angle that described measurement light direction rotates to described emergent light direction is acute angle;
First block body, the side of described first block body is fixed on described measurement light and injects on the housing between emergent light outgoing, and the edge of opposite side faces the intersection of described shell in-vivo measurement light and emergent light;
Analytic unit, described analytic unit for the treatment of described electric signal, thus knows the particle content in housing in gas.
According to above-mentioned particle pick-up unit, alternatively, described particle pick-up unit comprises further:
Second block body, described measurement light incides on described second block body obliquely.
According to above-mentioned particle pick-up unit, preferably, described second block body is cone.
According to above-mentioned particle pick-up unit, alternatively, described particle pick-up unit comprises further:
Collection optics, described collection optics is for collecting described detector by described emergent light.
According to above-mentioned particle pick-up unit, preferably, described collection optics is convergent lens.
According to above-mentioned particle pick-up unit, preferably, described light source is laser instrument.
According to above-mentioned particle pick-up unit, preferably, institute's acute angle is 60 degree.
Compared with prior art, the utility model has following beneficial effect:
Scatterometry before adopting, more highly sensitive than scattering after tradition;
First gear physical efficiency effectively blocks the parasitic light that light source produces, and avoids parasitic light and enters detector and zero point of affecting measurement;
Last hot spot delustring by reflection of the measurement light that second gear body can make light source send, does not allow last utilizing emitted light enter detector and affect the accuracy of measurement.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present utility model will be easier to understand.Those skilled in the art it is easily understood that: these accompanying drawings only for illustrating the technical solution of the utility model, and and are not intended to be construed as limiting protection domain of the present utility model.In figure:
Fig. 1 is the structural drawing of the particle pick-up unit of the utility model embodiment.
Embodiment
Fig. 1 and following description describe Alternate embodiments of the present utility model and how to implement to instruct those skilled in the art and to reproduce the utility model.In order to instruct technical solutions of the utility model, simplifying or having eliminated some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will in scope of the present utility model.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present utility model in every way.Thus, the utility model is not limited to following Alternate embodiments, and only by claim and their equivalents.
Embodiment:
Fig. 1 schematically illustrates the structural drawing of the pick-up unit of particle in the gas of the utility model embodiment, and as shown in Figure 1, the pick-up unit of described particle comprises:
Housing 4, described housing has gas feed and gas vent;
Light source 1, as launched the laser instrument of 650nm light, described light source is fixing on the housing by mount pad 2, is provided with transparent window 3 in described mount pad; The measurement light that described light source sends is injected in described housing, and scattering occurs, and wherein, region 10 is for detecting sensitive volume;
Collection optics 6, as convex lens, described collection optics is arranged in detector mount pad 7, for the emergent light of scattered light is collected described detector;
Detector 8, described detector 8 for the emergent light in the housing received is converted to electric signal, and is sent to analytic unit; The angle that described measurement light direction rotates to described emergent light direction is acute angle, as 60 degree;
First block body 5, as in the form of sheets, end is " V " shape, and the side of described first block body is fixed on described measurement light and injects on the housing between emergent light outgoing, and the edge of opposite side faces the intersection of described shell in-vivo measurement light and emergent light;
Second block body 9, described second block body adopts cone, and described measurement light incides on described second block body obliquely, makes to measure the detection that light can not disturb emergent light;
Analytic unit, described analytic unit for the treatment of described electric signal, thus knows the particle content in housing in gas.Described analytic unit is the state of the art, does not repeat them here.
Claims (7)
1. a particle pick-up unit, is characterized in that: described particle pick-up unit comprises:
Housing, described housing has import and outlet;
Light source, the measurement light that described light source sends is injected in described housing;
Detector, described detector is used for the emergent light in the housing received to be converted to electric signal, and is sent to analytic unit; The angle that described measurement light direction rotates to described emergent light direction is acute angle;
First block body, the side of described first block body is fixed on described measurement light and injects on the housing between emergent light outgoing, and the edge of opposite side faces the intersection of described shell in-vivo measurement light and emergent light;
Analytic unit, described analytic unit for the treatment of described electric signal, thus knows the particle content in housing in gas.
2. particle pick-up unit according to claim 1, is characterized in that: described particle pick-up unit comprises further:
Second block body, described measurement light incides on described second block body obliquely.
3. particle pick-up unit according to claim 2, is characterized in that: described second block body is cone.
4. particle pick-up unit according to claim 1, is characterized in that: described particle pick-up unit comprises further:
Collection optics, described collection optics is for collecting described detector by described emergent light.
5. particle pick-up unit according to claim 4, is characterized in that: described collection optics is convergent lens.
6. particle pick-up unit according to claim 1, is characterized in that: described light source is laser instrument.
7. particle pick-up unit according to claim 1, is characterized in that: described acute angle is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838143.XU CN205067286U (en) | 2015-10-26 | 2015-10-26 | Particulate matter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838143.XU CN205067286U (en) | 2015-10-26 | 2015-10-26 | Particulate matter detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067286U true CN205067286U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520838143.XU Active CN205067286U (en) | 2015-10-26 | 2015-10-26 | Particulate matter detection device |
Country Status (1)
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| CN (1) | CN205067286U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107576601A (en) * | 2017-09-20 | 2018-01-12 | 张家港朗亿机电设备有限公司 | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place |
| CN110361309A (en) * | 2018-04-09 | 2019-10-22 | 上海华川环保科技有限公司 | A kind of automatic measurement system of pollution sources gas particles object |
| CN111912755A (en) * | 2020-08-07 | 2020-11-10 | 山东中煤工矿物资集团有限公司 | Mining dust concentration sensor, sensor system and method |
| WO2022105258A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environmental monitoring method |
-
2015
- 2015-10-26 CN CN201520838143.XU patent/CN205067286U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107576601A (en) * | 2017-09-20 | 2018-01-12 | 张家港朗亿机电设备有限公司 | Suitable for the particulate matter on-line checking and analysis meter in urban track traffic place |
| CN107576601B (en) * | 2017-09-20 | 2023-11-17 | 张家港朗亿机电设备有限公司 | Particle on-line detection and analysis instrument suitable for urban rail transit places |
| CN110361309A (en) * | 2018-04-09 | 2019-10-22 | 上海华川环保科技有限公司 | A kind of automatic measurement system of pollution sources gas particles object |
| CN111912755A (en) * | 2020-08-07 | 2020-11-10 | 山东中煤工矿物资集团有限公司 | Mining dust concentration sensor, sensor system and method |
| CN111912755B (en) * | 2020-08-07 | 2021-08-10 | 山东中煤工矿物资集团有限公司 | Mining dust concentration sensor, sensor system and method |
| WO2022105258A1 (en) * | 2020-11-21 | 2022-05-27 | 山东鸣川汽车集团有限公司 | Environmental monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |