CN202548042U - Antipollution particle counter - Google Patents
Antipollution particle counter Download PDFInfo
- Publication number
- CN202548042U CN202548042U CN2012200419204U CN201220041920U CN202548042U CN 202548042 U CN202548042 U CN 202548042U CN 2012200419204 U CN2012200419204 U CN 2012200419204U CN 201220041920 U CN201220041920 U CN 201220041920U CN 202548042 U CN202548042 U CN 202548042U
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- China
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- particle
- flow
- particle flux
- passage
- sampling
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Abstract
The utility model relates to an antipollution particle counter. The antipollution particle counter comprises a particle flow upper passage (2) and a particle flow lower passage (7), wherein the particle flow upper passage (2) is connected with the upper end of an inner cavity (9); the particle flow lower passage (7) is connected with the lower end of the inner cavity (9), extends into the inner cavity and is correspondingly matched with the particle flow upper passage (2); and a before-pumping filter (8), an air extracting pump (11), a sampling air flow passage (12) and a sampling flow meter (15) are sequentially connected with the lower end of the particle flow lower passage (7). The antipollution particle counter is characterized in that a casing pipe (10) arranged at the upper end of the inner cavity (9) is in clearance fit with the particle flow upper passage (2) and is connected with the sampling air flow passage (12) through a clean air flow pipe (13); and a HEPA (High Efficiency Particulate Air) filter and a clean air flow meter (16) are connected in the clean air flow pipe (13). The antipollution particle counter has the advantages that through an annular clearance passage formed by the casing pipe and the particle flow upper passage, clean air flow encloses sampling particle flow to synchronously flow, so that the particle flow is prevented from diffusing, the aim of preventing pollution is fulfilled, and meanwhile the normal detection function is not affected.
Description
Technical field:
The utility model relates to field of gas detection, and particularly a kind of detection is suspended in the air or the corpuscular counter of particle size in other gases and concentration.
Background technology:
Detection is suspended in the air or the instrument of particle size in other gases and concentration, is referred to as corpuscular counter, and it is mainly used in the air purification detection range.Corpuscular counter is a kind of instrument that utilizes the scattering of light principle to carry out dust counting.Light scattering is relevant to the factors such as absorption characteristic of light with particle size, optical wavelength, particulate refractive index and particulate.But for concentration big with have corrosive particle; When it subtracts along inner chamber (claiming the scattering chamber again) the back speed urgency that the air inlet upper channel of corpuscular counter gets into optical sensor with higher speed; It is very easy spreads in cavity; And land on the cavity wall with optical mirror slip on, form to pollute, make the apparatus measures degradation.
Novel content:
The purpose of the utility model be exactly for solve that existing corpuscular counter exists easily by concentration big with have the shortcoming of corrosivity particle pollution, a kind of anti-pollution corpuscular counter that provides.
The technical scheme that the utility model adopts is following:
A kind of anti-pollution corpuscular counter comprises inner chamber, and the inner chamber upper end is connected with sampling particle flux inlet and particle flux upper channel; The particle flux upper channel stretches in the inner chamber; The inner chamber lower end is connected with the particle flux lower channel, and the one of which end stretches in the inner chamber and is connected with pump front filter, aspiration pump successively with particle flux upper channel corresponding matching, the other end, and the aspiration pump other end is connected with sampling air flow passage and sampling flow meter; It is characterized in that: the inner chamber upper end is provided with a sleeve pipe; The particle flux upper channel is in and is clearance fit in the sleeve pipe, and sleeve pipe wherein connects HEPA filtrator, cleaning gas tream flowmeter successively through cleaning gas tream pipeline and sampling air flow passage UNICOM in the cleaning gas tream pipeline.
On the basis of technique scheme, further technical scheme can be arranged:
Said cover infratubal port is concordant with particle flux upper channel lower port;
Said particle flux lower channel upper end is connected with a bowl type inlet, is connected with variable valve respectively in sampling air flow passage, the cleaning gas tream pipeline.
HEPA filtrator in the technique scheme, i.e. the abbreviation of existing efficient air purifier (High efficiency particulate air Filter) is that 0.3 microparticles can reach 99.99% filtration efficiency to diameter.The pump front filter that is adopted in addition, aspiration pump, cleaning gas tream flowmeter, variable valve all are prior aries.
The utility model has the advantages that: through the annular gas passageway of sleeve pipe and the formation of particle flux upper channel; Cleaning gas tream is surrounded the sampling particle flux to flow with it synchronously; The one, protect particle flux and do not allow its diffusion, and reach anti-pollution purpose, do not influence normal measuring ability simultaneously again.
Description of drawings:
Fig. 1 is the structure principle chart of the utility model.
Practical implementation:
A kind of anti-pollution corpuscular counter as shown in Figure 1, that the utility model provides comprises inner chamber 9, and inner chamber one side is provided with reflective mirror 5, opposite side and is provided with a pair of reception eyeglass 4 and optical receiver 6 successively; The inner chamber upper end is connected with sampling particle flux inlet 1 and particle flux upper channel 2; Particle flux upper channel 2 stretches in the inner chamber; The inner chamber lower end is connected with particle flux lower channel 7; Particle flux lower channel 7 upper ends are stretched in the inner chamber and particle flux upper channel 2 corresponding matching, and particle flux lower channel 7 upper ends also are provided with a bowl type inlet 3, so that make in the particle flux income particle flux lower channel 7.
Particle flux lower channel 7 lower ends are connected with pump front filter 8, aspiration pump 11 successively, and aspiration pump 11 other ends are connected with sampling air flow passage 12, are provided with flow control valve 14 and sampling flow meter 15 successively in the sampling air flow passage 12.
Be provided with a sleeve pipe 10 (also claiming the cleaning sheath) stretches in the inner chamber in inner chamber 9 upper ends; Particle flux upper channel 2 be in sleeve pipe position, 10 axis and with sleeve pipe clearance fit ringwise; Sleeve pipe 10 lower port are concordant with particle flux upper channel 2 lower port; Sleeve pipe 10 wherein connects HEPA filtrator 17, variable valve 18 and cleaning gas tream flowmeter 16 successively through cleaning gas tream pipeline 13 and sampling air flow passage 12 UNICOMs in the cleaning gas tream pipeline 13.
Can find out by Fig. 1; Through sleeve pipe 10 and the gap, circular passage that particle flux upper channel 2 forms, form annular cleaning gas tream, annular cleaning gas tream surrounds the sampling particle flux and flows downward synchronously with it; Get into particle flux lower channel 7 by bowl type inlet 3; Both protect particle flux not allow its diffusion, reached anti-pollution purpose, do not influenced normal measuring ability simultaneously again.
Particle flux upper channel 2 adopts the stainless-steel tube that endoporus is 2.5mm length 50mm-70mm; Its upper end is connected in particle flux inlet 1 and is fixed in the shaft core position of sleeve pipe 10; Particle flux upper channel 2 lower ends are concordant with the exit of sleeve pipe 10, and sleeve pipe is fixed in corpuscular counter inner chamber end face.
Sleeve pipe (also claiming the cleaning sheath) can use plasticity PVC flexible pipe to be connected with the cleaning gas tream channel part, and endoporus is answered >=Φ 6mm, and HEPA filtrator 17 adopts EN classification H13.
The aspiration pump part couples together sampling pump front filter and lower channel with plasticity PVC flexible pipe with sampling air flow passage 12 parts equally; Lower channel 7 is the aluminum pipe of the long 50mm of endoporus Φ 5.5mm and the inner chamber bottom surface of being fixed in corpuscular counter; The pump front filter is connected with Φ 6mm pvc pipe with the aspiration pump inlet and connects; Aspiration pump adopts electromagnetic pump, and specified 80 liters/minute of flow, pump front filter are EN classification H10.Flow on the passage is counted suspended body flowmeter, and variable valve is a ball valve, can not use needle-valve.
Claims (3)
1. anti-pollution corpuscular counter; Comprise inner chamber (9); The inner chamber upper end is connected with sampling particle flux inlet (1) and particle flux upper channel (2); Particle flux upper channel (2) extend in the inner chamber; The inner chamber lower end is connected with particle flux lower channel (7) and stretches in the inner chamber and particle flux upper channel (2) corresponding matching, and particle flux lower channel (7) other end is connected with pump front filter (8), aspiration pump (11) successively, and aspiration pump (11) other end is connected with sampling air flow passage (12) and sampling flow meter (15); It is characterized in that: inner chamber (2) upper end is provided with a sleeve pipe (10); Particle flux upper channel (2) is in the sleeve pipe (10) and is clearance fit, and sleeve pipe (10) wherein connects HEPA filtrator, cleaning gas tream flowmeter (16) successively through cleaning gas tream pipeline (13) and sampling air flow passage (12) UNICOM in the cleaning gas tream pipeline (13).
2. anti-pollution corpuscular counter according to claim 1 is characterized in that: sleeve pipe (10) lower port is concordant with particle flux upper channel (2) lower port.
3. anti-pollution corpuscular counter according to claim 1 and 2 is characterized in that: particle flux lower channel (7) upper end is connected with a bowl type inlet (3), and sampling air flow passage (12), cleaning gas tream pipeline are connected with variable valve respectively in (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200419204U CN202548042U (en) | 2012-02-10 | 2012-02-10 | Antipollution particle counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200419204U CN202548042U (en) | 2012-02-10 | 2012-02-10 | Antipollution particle counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548042U true CN202548042U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200419204U Expired - Fee Related CN202548042U (en) | 2012-02-10 | 2012-02-10 | Antipollution particle counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202548042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713815A (en) * | 2015-03-24 | 2015-06-17 | 中国科学院上海光学精密机械研究所 | Sample gas pipeline, made of glass material, of aerosol focusing gas circuit and manufacturing method of sample gas pipeline |
| CN105424566A (en) * | 2014-11-10 | 2016-03-23 | 北京至感传感器技术研究院有限公司 | Dust particle detection device |
-
2012
- 2012-02-10 CN CN2012200419204U patent/CN202548042U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424566A (en) * | 2014-11-10 | 2016-03-23 | 北京至感传感器技术研究院有限公司 | Dust particle detection device |
| CN104713815A (en) * | 2015-03-24 | 2015-06-17 | 中国科学院上海光学精密机械研究所 | Sample gas pipeline, made of glass material, of aerosol focusing gas circuit and manufacturing method of sample gas pipeline |
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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: MANN-HUMMEL HAOYE FILTER (BENGBU) CO., LTD. Free format text: FORMER NAME: BENGBU HAOYE FILTER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 233010 No. 8018, Mount Huangshan Avenue, hi tech Zone, Anhui, Bengbu Patentee after: Man Hummel industry filter (Bengbu) Co., Ltd. Patentee after: SUXIN Cleanroom Equipment Factory Address before: 233010 No. 8018, Mount Huangshan Avenue, hi tech Zone, Anhui, Bengbu Patentee before: Bengbu Haoye Filter Co., Ltd. Patentee before: SUXIN Cleanroom Equipment Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20150210 |
|
| EXPY | Termination of patent right or utility model |