CN204882311U - Be adapted to smoke and dust particulate matter determination appearance of high wet state - Google Patents
Be adapted to smoke and dust particulate matter determination appearance of high wet state Download PDFInfo
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- CN204882311U CN204882311U CN201520523766.8U CN201520523766U CN204882311U CN 204882311 U CN204882311 U CN 204882311U CN 201520523766 U CN201520523766 U CN 201520523766U CN 204882311 U CN204882311 U CN 204882311U
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- sampling pipe
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- filter membrane
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Abstract
An object of the utility model is to provide a simple structure, high measurement accuracy is adapted to high wet state downlap low concentration smoke and dust particulate matter check out test set. Adopt a be adapted to smoke and dust particulate matter determination appearance of high wet state, including sample gas air inlet, gas outlet, sampling mechanism, measuring frame, filtering mechanism, beta ray detector subassembly and air curtain generating device, sampling mechanism includes the sampling pipe of being connected with the sample gas air inlet to and the heating device of parcel in the sampling pipe outer fringe. The high smooth finish of the low internal diameter heating constant temperature sampling pipe of integration, low internal diameter sampling pipe can improve the speed that the flue gas flows past the sampling pipe, the high smooth finish sampling pipe of heating is used for reducing the sampling pipe to the adhesion effect of smoke and dust particulate matter, and both combine to make the flue gas to flow past the sampling pipe fast, reduces the sampling pipe inner wall because of the adhesion of the wet dewfall of height to the smoke and dust particulate matter, guarantees the reliability of sample to reduce the error.
Description
Technical field
The utility model belongs to soot dust granule substrate concentration sensing equipment field, particularly relates to one and is adapted to super low concentration soot dust granule quality testing measurement equipment under high humidity state.
Background technology
Measurement of soot and dust concentration technology adopts artificial sample to filter weight method mostly, and China mostly adopts at present and carries out sampled measurements in this way.Its ultimate principle the sampling filter cylinder filtered or filter membrane is weighed in advance, then sampling instrument is loaded, the sample gas containing soot dust granule thing of certain volume is by after the filter cylinder of having weighed or filter membrane, soot dust granule thing in flue gas is by detention, according to weight difference and the sampling volume of front and back filter cylinder or filter membrane, calculate dust content.Because the gas in flue has certain flow velocity and pressure, during sampling, adopt the method for constant speed tracking sampling.The accuracy of resampling filter weight method is high, and method is reasonable, is adopted as the dust concentration method of sampling of standard by China, and as identifying the standard method of other analytical approach.
Existing β rays method dust concentration detector, most employing strainer moves or filter membrane conversion sampled measurements, complex structure, reliability is low, the method how solving reliable samples and measurement under high humility low concentration state is not proposed, the not mentioned methods temperature of detecting device and the impact of surface moisture being caused to accuracy in detection error how solved because heating causes yet.
Utility model content
For above-mentioned technical matters, the purpose of this utility model is to provide a kind of structure simple, high measurement accuracy, is adapted to super low concentration soot dust granule quality testing measurement equipment under high humidity state.For achieving the above object, technical scheme is: a kind of soot dust granule substrate concentration analyzer being adapted to high humidity state, comprise sample gas air intake opening, gas outlet, sampling mechanism, detection frame, filter mechanism, β ray detector assembly and device for generating air curtain, described sampling mechanism comprises the sampling pipe be connected with sample gas air intake opening, and is wrapped in the heating arrangement of sampling pipe outer rim.
Further, described filter mechanism comprises filter membrane, filter membrane heating arrangements, filter membrane loading unloading device and filter membrane lock sealing mechanism.
Further, heated at constant temperature module is provided with in described filter membrane heating arrangements.
Further, described detection frame is provided with upper chamber and lower chamber, described sample gas air intake opening connects sampling pipe and is communicated with upper chamber; Described filter mechanism is connected with lower chamber.
Further, the described β ray detector assembly air inlet that comprises detecting device, constant temperature heating device and be positioned at below detecting device.
Further, described air inlet is firm discharge dry air air intake opening, and air inlet connects device for generating air curtain.
Further, the heating arrangement of described sampling pipe outer rim is provided with temperature sensor.
The beneficial effects of the utility model are: the low internal diameter best bright finish heated constant temperature sampling pipe 1) adopting integration, and low internal diameter sampling pipe can improve the speed that flue gas flows through sampling pipe; The best bright finish sampling pipe of heating is for reducing the adhesion effect of sampling pipe to soot dust granule thing, both combine and make flue gas flow fast through sampling pipe, reduce the adhesion of sampling pipe inwall because of high humidity condensation to soot dust granule thing, ensure the reliability of sample, thus reduce error; 2) adopt filter membrane heated constant temperature to eliminate the impact of steam on filter membrane, adopt and solve because heating and high-humidity gas fume are on the impact of detecting device on β ray detector assembly constant temperature and the air curtain that utilizes dry air to be formed below β ray detector assembly, thus raising accuracy of detection, further reduce measuring error.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, below in conjunction with accompanying drawing, this programme is conducted further description.
A kind of soot dust granule substrate concentration analyzer being adapted to high humidity state, comprise sample gas air intake opening 1, gas outlet 11, sampling mechanism, detection frame 3, filter mechanism, β ray detector assembly 4 and device for generating air curtain 6, described sampling mechanism comprises the sampling pipe 2 be connected with sample gas air intake opening 1, and being wrapped in the heating arrangement 14 of sampling pipe 2 outer rim, the internal diameter of described sampling pipe 2 is less than the internal diameter of sample gas air intake opening 1.
Described filter mechanism comprises filter membrane 13, filter membrane heating arrangements 12, filter membrane loading unloading device and filter membrane lock sealing mechanism 10.
Heated at constant temperature module is provided with in described filter membrane heating arrangements 12.
Described detection frame 3 is provided with upper chamber 7 and lower chamber 8, described sample gas air intake opening 1 connects sampling pipe 2 and is communicated with upper chamber 7; Described filter mechanism is connected with lower chamber 8.C14 radioactive source 9 is arranged on below lower chamber 8.
The air inlet 16 that described β ray detector assembly 4 comprises detecting device, constant temperature heating device 5 and is positioned at below detecting device.
Described air inlet 16 is firm discharge dry air air intake opening, and air inlet 16 connects device for generating air curtain 6.
The heating arrangement 14 of described sampling pipe outer rim is provided with temperature sensor 17.
Claims (4)
1. one kind is adapted to the soot dust granule substrate concentration analyzer of high humidity state, comprise sample gas air intake opening, gas outlet, sampling mechanism, detection frame, filter mechanism, β ray detector assembly and device for generating air curtain, described detection frame is provided with upper chamber and lower chamber, and described sample gas air intake opening connects sampling pipe and is communicated with upper chamber; Described filter mechanism is connected with lower chamber, the air inlet that described β ray detector assembly comprises detecting device, constant temperature heating device and is positioned at below detecting device, described air inlet is firm discharge dry air air intake opening, air inlet connects device for generating air curtain, it is characterized in that: described sampling mechanism comprises the sampling pipe be connected with sample gas air intake opening, and is wrapped in the heating arrangement of sampling pipe outer rim.
2. a kind of soot dust granule substrate concentration analyzer being adapted to high humidity state according to claim 1, is characterized in that: described filter mechanism comprises filter membrane, filter membrane heating arrangements, filter membrane loading unloading device and filter membrane lock sealing mechanism.
3. a kind of soot dust granule substrate concentration analyzer being adapted to high humidity state according to claim 2, is characterized in that: be provided with heated at constant temperature module in described filter membrane heating arrangements.
4. a kind of soot dust granule substrate concentration analyzer being adapted to high humidity state according to claim 1, is characterized in that: the heating arrangement of described sampling pipe outer rim is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523766.8U CN204882311U (en) | 2015-07-17 | 2015-07-17 | Be adapted to smoke and dust particulate matter determination appearance of high wet state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523766.8U CN204882311U (en) | 2015-07-17 | 2015-07-17 | Be adapted to smoke and dust particulate matter determination appearance of high wet state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204882311U true CN204882311U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520523766.8U Active CN204882311U (en) | 2015-07-17 | 2015-07-17 | Be adapted to smoke and dust particulate matter determination appearance of high wet state |
Country Status (1)
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| CN (1) | CN204882311U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806673A (en) * | 2016-05-06 | 2016-07-27 | 南京波瑞自动化科技有限公司 | Multipoint sampling device and multipoint sampling system for dust measurement of large section flue of power station |
| CN106018002A (en) * | 2016-05-17 | 2016-10-12 | 南京友智科技有限公司 | Matrix type mixed constant-speed sampling device |
| CN106596365A (en) * | 2016-12-30 | 2017-04-26 | 聚光科技(杭州)股份有限公司 | Dust concentration monitoring device and method for high-humidity flue gas |
| CN107655725A (en) * | 2017-09-15 | 2018-02-02 | 苏州西热节能环保技术有限公司 | A kind of super low concentration particle sampling pipette tips suitable for low temperature and high relative humidity environment |
| CN112649336A (en) * | 2020-12-15 | 2021-04-13 | 北京雪迪龙科技股份有限公司 | Humidity interference removing method |
-
2015
- 2015-07-17 CN CN201520523766.8U patent/CN204882311U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806673A (en) * | 2016-05-06 | 2016-07-27 | 南京波瑞自动化科技有限公司 | Multipoint sampling device and multipoint sampling system for dust measurement of large section flue of power station |
| CN106018002A (en) * | 2016-05-17 | 2016-10-12 | 南京友智科技有限公司 | Matrix type mixed constant-speed sampling device |
| CN106596365A (en) * | 2016-12-30 | 2017-04-26 | 聚光科技(杭州)股份有限公司 | Dust concentration monitoring device and method for high-humidity flue gas |
| CN106596365B (en) * | 2016-12-30 | 2024-01-05 | 聚光科技(杭州)股份有限公司 | Dust concentration monitoring device and method for high-humidity flue gas |
| CN107655725A (en) * | 2017-09-15 | 2018-02-02 | 苏州西热节能环保技术有限公司 | A kind of super low concentration particle sampling pipette tips suitable for low temperature and high relative humidity environment |
| CN112649336A (en) * | 2020-12-15 | 2021-04-13 | 北京雪迪龙科技股份有限公司 | Humidity interference removing method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |