CN201561923U - Particle concentration test device - Google Patents
Particle concentration test device Download PDFInfo
- Publication number
- CN201561923U CN201561923U CN 200920255568 CN200920255568U CN201561923U CN 201561923 U CN201561923 U CN 201561923U CN 200920255568 CN200920255568 CN 200920255568 CN 200920255568 U CN200920255568 U CN 200920255568U CN 201561923 U CN201561923 U CN 201561923U
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- CN
- China
- Prior art keywords
- test unit
- granule density
- density test
- efficiency air
- upstream
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Abstract
The utility model relates to a particle concentration test device, which is characterized by comprising an aerosol generator, a fan, a high-efficiency air filter, an upper transition pipe, an organic glass chamber and a lower transition pipe. The aerosol generator and the fan are connected with the high-efficiency air filter. The upper transition pipe and the high-efficiency air filter are connected with the organic glass chamber. The upper transition pipe is provided with an upper sampling port. The lower transition pipe is connected with the organic glass chamber and provided with a lower sampling port.
Description
[technical field]
The utility model relates to a kind of test unit, is specifically related to a kind of granule density test unit that particle is studied of being used for.
[background technology]
The significant correlation of Atmospheric particulates mass concentration and human body M ﹠ M has caused countries in the world government and correlative study mechanism, researchist's great attention, has carried out a large amount of experiments and theoretical research.Yet indoor environment is the main place that people's particle exposes, and indoor and outdoor particle concentration level is in the same order of magnitude.According to the indoor particle thing pollution situation of measuring, just can make control strategy and the control criterion and the rational and effective control method of science, improve indoor air quality, thereby alleviate in the indoor environment particle the harm of health.Along with the attention of people, more and more important with regard to what become to the research of particle to living environment.
Yet the research method for particle is a lot.Propose a kind of grain graininess and apparatus for measuring concentration as China Patent No. CN201096702, relate to the ultrasonic measurement technical field; This measurement mechanism comprises the computing machine that carries out data processing, connects the signal processing circuit of computing machine, connects the pulsed wave transmissions/receiving circuit of signal processing circuit, connects the emission/receiving transducer assembly of pulsed wave transmissions and receiving circuit; Data processor compares measuring-signal and set standard substance; The acoustic attenuation spectrum of actual measurement makes up matrix and system of linear equations and also finds the solution with composing according to the acoustic attenuation of the acoustic scattering formula theory of computation; With the calculating of bifrequency decay ratioing technigue realization, calculate size-grade distribution with optimization method, and go out granule density according to the grain graininess inverse to particle mean size.This apparatus structure is comparatively complicated, and operating portion is convenient.
[utility model content]
In order to solve the above-mentioned deficiency of prior art, it is a kind of simple in structure, easy to operate that the utility model purpose is to provide, easily the granule density test unit of observation.
For achieving the above object, one of the utility model embodiment provides a kind of granule density test unit, it is characterized in that comprising: an aerosol generator, one blower fan, one thick high-efficiency air filtering device, a upstream transition pipeline, a plexiglass-room and once swim across and cross pipeline.Described aerosol generator is connected with described blower fan and described high-efficiency air filtering device.Described upstream transition pipeline links to each other with described plexiglass-room with described thick high-efficiency air filtering device, and this upstream transition pipeline is provided with a sampled upstream mouth.Described downstream transition conduit is connected with described plexiglass-room and this downstream transition conduit is provided with a downstream thief hatch.Described granule density test unit also can comprise pressure regulator valve, flowrate control valve, compressed-air filter.
When testing, the compressed air piping of aerosol generator is connected with spray pipe, the air compressor power supply is connected to the socket on the control box; Laser dust particle counter is in holding state; Opening the by-pass governing valve device answers ground connection good.Opening total power switch then can test set by step.
Based on the design of the foregoing description, advantage of the present utility model is: this apparatus structure is simple, and simple operation is easy to observation.
Other purposes of the present utility model and advantage can be further understood from the disclosed technical characterictic of the utility model.State with other purposes, feature and advantage and can become apparent on the utility model for allowing, embodiment cited below particularly also cooperates appended graphicly, is described in detail below.
[description of drawings]
Fig. 1 is the granule density test unit synoptic diagram of one of the utility model embodiment.
[embodiment]
About addressing other technologies content, characteristics and effect before the utility model, in the following detailed description that cooperates with reference to graphic embodiment, can clearly present.The direction term of being mentioned in following examples, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to annexed drawings.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the utility model.
Please refer to Fig. 1, one of the utility model embodiment provides a kind of granule density test unit, it is characterized in that comprising: an aerosol generator (not drawing), one blower fan 17, one thick high-efficiency air filtering device 4, one upstream transition pipelines, 6, one plexiglass-rooms 8 and once swim across and cross pipeline 10.Described aerosol generator and described blower fan 17 and 4 connections mutually of described high-efficiency air filtering device.Described upstream transition pipeline 6 links to each other with described plexiglass-room 8 with described thick high-efficiency air filtering device 4, and this upstream transition pipeline 6 is provided with a sampled upstream mouth 7.Described downstream transition conduit 10 is connected with described plexiglass-room 8 and this downstream transition conduit is provided with a downstream thief hatch 9.Described granule density test unit also can comprise pressure regulator valve 11, flowrate control valve 15, compressed-air filter 16.
Carry out some preliminary works during test earlier.At first experiment table should be placed in the daily indoor environment, and away from mobile source of the gas and dirt source; Secondly the compressed air piping with aerosol generator is connected with spray pipe, and the air compressor power supply can be connected to the socket on the control box; Moreover guarantee that laser dust particle counter is in holding state; Open bypass control valve (BCV) at last, and whether checkout facility ground connection is good.Just can test through above step.Concrete steps are as follows:
1. unlatching total power switch;
2. press blower fan button (lamp is bright), this moment, frequency converter was in holding state, and STOP key top red light is bright;
3. press the RUN key (green) on the frequency converter, fan operation work this moment; (by regulate on the frequency converter ▲ key (increase) or
Key (reduction) is regulated air quantity thereby change the fan operation frequency with this)
4. press source of the gas button (lamp is bright), regulate the spraying pressure regulator valve, pressure transfers to 0.05～0.15Mpa, makes aerosol generator work;
5. open the counter power supply, press the measurement key, this hour counter operation;
6. as required, select the upstream and downstream sampling arbitrarily, only need turn sample conversion valve to realize;
If from the upstream data sample conversion when downstream data is sampled, should let slip a few pass certificates, to reduce the influence of upstream data to downstream data;
8. experiment finishes, and presses the STOP key (redness) of frequency converter or presses blower fan button (lamp goes out), and this moment, blower fan was out of service;
9. when directly press blower fan button (lamp goes out) under the fan operation state, then close inverter supply, blower fan is also out of service;
In addition, can install all kinds of detecting instruments and observation instrument according to demand additional, to obtain desired data.This device also has simple in structure, simple operation, the advantage that is easy to observe.
Though the utility model discloses as above with preferred embodiment; so it is not to be used for limiting the utility model; anyly have the knack of this skill person; in the spirit and scope that do not break away from the utility model; when can doing a little change, so the protection domain of the utility model is as the criterion when looking the patent protection scope person of defining.In addition, arbitrary embodiment of the present utility model or claim must not reached whole purposes or advantage or the characteristics that the utility model discloses.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not the rights protection scope that is used for limiting the utility model.
Claims (5)
1. granule density test unit is characterized in that comprising: an aerosol generator, a blower fan, a thick high-efficiency air filtering device, a upstream transition pipeline, a plexiglass-room and once swim across and cross pipeline.
2. granule density test unit as claimed in claim 1 is characterized in that, described aerosol generator is connected with described blower fan and described high-efficiency air filtering device.
3. granule density test unit as claimed in claim 1 is characterized in that, described upstream transition pipeline links to each other with described plexiglass-room with described thick high-efficiency air filtering device, and this upstream transition pipeline is provided with a sampled upstream mouth.
4. granule density test unit as claimed in claim 1 is characterized in that, described downstream transition conduit is connected with described plexiglass-room and this downstream transition conduit is provided with a downstream thief hatch.
5. granule density test unit as claimed in claim 1 is characterized in that, described granule density test unit also can comprise pressure regulator valve, flowrate control valve, compressed-air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920255568 CN201561923U (en) | 2009-11-20 | 2009-11-20 | Particle concentration test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920255568 CN201561923U (en) | 2009-11-20 | 2009-11-20 | Particle concentration test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561923U true CN201561923U (en) | 2010-08-25 |
Family
ID=42627071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920255568 Expired - Fee Related CN201561923U (en) | 2009-11-20 | 2009-11-20 | Particle concentration test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163364A (en) * | 2011-03-23 | 2011-08-24 | 长春理工大学 | Smoke detector sensitivity detecting device based on obscuration principle |
-
2009
- 2009-11-20 CN CN 200920255568 patent/CN201561923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163364A (en) * | 2011-03-23 | 2011-08-24 | 长春理工大学 | Smoke detector sensitivity detecting device based on obscuration principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20131120 |