CN204374035U - Airborne particle counter - Google Patents
Airborne particle counter Download PDFInfo
- Publication number
- CN204374035U CN204374035U CN201420839169.1U CN201420839169U CN204374035U CN 204374035 U CN204374035 U CN 204374035U CN 201420839169 U CN201420839169 U CN 201420839169U CN 204374035 U CN204374035 U CN 204374035U
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- CN
- China
- Prior art keywords
- gas
- detecting device
- gas buffer
- buffer
- particle counter
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Abstract
The utility model relates to a kind of airborne particle counter, comprise and measure chamber, light source, photodetector and Circuits System, measure chamber connection traffic supervising device successively, air pump, filtrator, measure the chamber other end and connect gas buffer, gas buffer connects gas-detecting device, be provided with solenoid valve between gas buffer and gas-detecting device, gas buffer comprises variable valve.After adopting said structure, gas-detecting device can detect the composition of gas, discharges the gas falling may cause accident; Gas buffer and variable valve play the effect of adjusting gas flow, reach best gasmetry effect; Between gas buffer and gas-detecting device, the convenient gas that controls that arranges of solenoid valve enters measurement chamber.
Description
Technical field
The utility model relates to clean rank pick-up unit, especially relates to a kind of laser dust particle counter.
Background technology
Laser dust particle counter is used to measure the quantity of dirt particle in air and the instrument of domain size distribution, be widely used in the industries such as medicine, electronics, precision optical machinery, colored picture tube manufacture, microorganism, realize monitoring the worktable of various lustration class, decontamination chamber, the clean-up effect of cleaning shop, clean rank, to guarantee the quality of product.Laser dust particle counter ultimate principle is that the exploring laser light of optical sensor is received by light activated element and produces pulse signal after dust particle scattering, this pulse signal is output and amplifies, then digital signal processing is carried out, by comparing with standard particle signal, by comparing result with different Parametric Representations out, but current laser dust particle counter easily produces blast or other accidents when detecting special gas, affects the security of survey crew.
Summary of the invention
In order to overcome above-mentioned defect, it is simple that the utility model provides structure, safe and reliable laser dust particle counter.
The utility model solves the technical scheme that its technical matters adopts: a kind of airborne particle counter, comprise and measure chamber, light source, photodetector and Circuits System, measure chamber connection traffic supervising device successively, air pump, filtrator, measure the chamber other end and connect gas buffer, gas buffer connects gas-detecting device, be provided with solenoid valve between gas buffer and gas-detecting device, gas buffer comprises variable valve.
In a preferred embodiment of the present utility model, Circuits System comprises display and printing equipment.
In a preferred embodiment of the present utility model, gas-detecting device adopts corrosion resistant material to make.
The beneficial effects of the utility model are: after adopting said structure, gas-detecting device can detect the composition of gas, discharge the gas falling may cause accident; Gas buffer and variable valve play the effect of adjusting gas flow, reach best gasmetry effect; Between gas buffer and gas-detecting device, the convenient gas that controls that arranges of solenoid valve enters measurement chamber.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, measure chamber; 2, light source; 3, photodetector; 4, Circuits System; 5, flow-monitoring device; 6, air pump; 7, filtrator; 8, gas buffer; 9, gas-detecting device; 10, solenoid valve.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
A kind of airborne particle counter as shown in Figure 1, comprise and measure chamber 1, light source 2, photodetector 3 and Circuits System 4, measure chamber 1 connection traffic supervising device 5 successively, air pump 6, filtrator 7, flow-monitoring device 5 can monitor the gas flow entering and measure chamber 1, and passes to gas buffer 8, if flow is excessive or too small, convenient adjustment; Measure chamber 1 other end and connect gas buffer 8, gas buffer 8 connects gas-detecting device 9, solenoid valve 10 is provided with between gas buffer 8 and gas-detecting device 9, gas buffer 8 comprises variable valve 8-1, the adjustable gas entered in gas buffer 8 of variable valve 8-1, to reach best detection flow rate effects.
Circuits System 4 comprises display 4-1 and printing equipment 4-2, by testing result display or can preserve printing.
Gas-detecting device 9 adopts corrosion resistant material to make, the various gas of convenient detection.
It is emphasized that: the foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. an airborne particle counter, it is characterized in that: comprise and measure chamber (1), light source (2), photodetector (3) and Circuits System (4), described measurement chamber (1) connection traffic supervising device (5) successively, air pump (6), filtrator (7), described measurement chamber (1) other end connects gas buffer (8), described gas buffer (8) connects gas-detecting device (9), be provided with solenoid valve (10) between gas buffer (8) and gas-detecting device (9), described gas buffer (8) comprises variable valve (8-1).
2. airborne particle counter according to claim 1, is characterized in that: described Circuits System (4) comprises display (4-1) and printing equipment (4-2).
3. airborne particle counter according to claim 1, is characterized in that: described gas-detecting device (9) adopts corrosion resistant material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839169.1U CN204374035U (en) | 2014-12-26 | 2014-12-26 | Airborne particle counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839169.1U CN204374035U (en) | 2014-12-26 | 2014-12-26 | Airborne particle counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204374035U true CN204374035U (en) | 2015-06-03 |
Family
ID=53330245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420839169.1U Expired - Fee Related CN204374035U (en) | 2014-12-26 | 2014-12-26 | Airborne particle counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204374035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470626A (en) * | 2018-12-21 | 2019-03-15 | 苏州耀群净化科技有限公司 | A kind of dust free room particulate contamination micro control system |
-
2014
- 2014-12-26 CN CN201420839169.1U patent/CN204374035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470626A (en) * | 2018-12-21 | 2019-03-15 | 苏州耀群净化科技有限公司 | A kind of dust free room particulate contamination micro control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |