CN205506642U - Performance detection device of real -time airborne viable particles calculating instrument - Google Patents
Performance detection device of real -time airborne viable particles calculating instrument Download PDFInfo
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- CN205506642U CN205506642U CN201521043607.4U CN201521043607U CN205506642U CN 205506642 U CN205506642 U CN 205506642U CN 201521043607 U CN201521043607 U CN 201521043607U CN 205506642 U CN205506642 U CN 205506642U
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Abstract
The utility model relates to a capability test device of real -time airborne viable particles calculating instrument, include aerosol generating device, closed cabin, refer to model machine and connector, the interface connection real -time airborne viable particles calculating instrument that awaits measuring even, aerosol generating device produces and experimentally to get into the closed cabin with the sample aerosol, and the real -time airborne viable particles calculating instrument and suck the aerosol according to the model machine from the closed cabin in and detect of awaiting measuring is through await measuring real -time airborne viable particles calculating instrument and according to the test result of model machine of contrastive analysis, the performance index of the real -time airborne viable particles calculating instrument of detectable play. The device simple structure, practicality, security are good, and can test the multinomial performance index of real -time airborne viable particles calculating instrument.
Description
Technical field
This utility model relates to instrument detection field, particularly relates to the device for detecting performance of real-time flcating germ calculating instrument.
Background technology
The detection of flcating germ concentration all has important application, such as medical industry toilet and the monitoring of hospital clean operation department gnotobasis, inspection and quarantine, the microorganism concn monitoring etc. of confined space in terms of industrial, civilian and national defence.
At present, the main method of detection flcating germ concentration is that counting method is cultivated in sampling, the method is also the method for testing that existing national standards is assert, just describes the sampling cultivation counting method that test flcating germ is used in detail such as " method of testing of GB/T 16293-2010 medical industry toilet (district) flcating germ ".Many drawbacks such as but complexity that the method exists flow process is loaded down with trivial details, cycle length, anthropic factor impact are big.Therefore, new ways and means is continuously developed to replacing traditional cultivation counting method.Such as, real-time flcating germ counting instruments based on UV light-induced fluoroscopic examination principle, overcome the drawback that traditional cultivation counting method exists, there is the plurality of advantages such as easy to operate, detection real-time is high, test is accurate, be the most constantly applied to the fields such as gnotobasis monitoring, biological weapons early warning.
Flcating germ counting instruments is as a kind of new product in real time, have broad application prospects, on market, existing Patents technology and product occur, such as Patent No. CN201410189510.8, patent name is that the patent of " a kind of microorganism particle counter in real time " discloses real-time microorganism particle counter device.But, device and method of testing are tested for flcating germ counting instruments or microorganism count device correlated performance, there is no national standard and industry standard can depend on.
Summary of the invention
For overcoming the deficiencies in the prior art, the performance for real-time flcating germ counting instruments based on UV light-induced fluoroscopic examination principle detects, it is provided that a kind of detection device.
The technical scheme that the present invention takes is:
The performance testing device of a kind of real-time flcating germ calculating instrument, it is characterised in that include aerosol generating device, closed cabin, reference model machine and connector；Described closed cabin connects described aerosol generating device, described reference model machine and connector by pore, and described connector connects real-time flcating germ calculating instrument to be measured.
The most also including decontaminating apparatus, described decontaminating apparatus is connected with closed cabin by pore.
Further, described aerosol generating device includes source of the gas, filter, nebulizer, exsiccator, and described source of the gas air out, after described filter, is divided into two-way and enters described nebulizer and described exsiccator.
Further, pressure-regulating valve is set between filter and nebulizer.
Further, described source of the gas is air compressor machine or liquefied gas bottle.
Further, described nebulizer is air compression type nebulizer.
The advantage of technical solutions of the utility model is: device is simple and practical, safety good, and can test the multinomial performance index of real-time flcating germ calculating instrument.
Accompanying drawing explanation
Fig. 1 is this utility model device schematic diagram.
Wherein:
1-aerosol generating device, 2-closed cabin, 3-are with reference to model machine, 4-connector, 5-decontaminating apparatus；
101-source of the gas, 102-filter, 103-pressure-regulating valve, 104-nebulizer, 105-exsiccator.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by embodiment, technical solution of the present invention is described further.
As shown in Figure 1, the device for detecting performance of real-time flcating germ calculating instrument of the present invention, including bioaerosol generating means 1, closed cabin 2, reference model machine 3, connector 4 and microbial decontamination device 5, connector 4 connects for real-time flcating germ calculating instrument to be measured.
Its detection time work process be first real-time flcating germ calculating instrument to be measured to be connected at described connector 4, real-time flcating germ calculating instrument the most to be measured be under identical working condition with reference to model machine 3；Bioaerosol generating means 1 produces test sample aerosol, these aerosoies are directly entered in closed cabin 2, after forming uniform and stable aerosol environment in closed cabin, described to be measured real-time flcating germ calculating instrument and detecting with reference to model machine 3 Inhaled Aerosol in closed cabin 2.Owing to being in barotropic state in closed cabin 2, the aerosol of effusion can be directly entered microbial decontamination device 5, and the air after sterilization is discharged in outside air.By relative analysis machine to be measured and the test result of reference model machine 3, can detect that the performance indications of real-time flcating germ calculating instrument.
For there is the bioaerosol of test in described bioaerosol generating means 1.Described bioaerosol generating means 1 is made up of source of the gas 101, high efficiency particulate air filter 102, pressure-regulating valve 103, nebulizer 104, mixing drier 105 etc..Its operation principle is, the source of the gas such as air compressor machine or liquefied gas bottle 101 produces the air being dried, and air becomes pure air after being filtered by high efficiency particulate air filter 102.Pure air is divided into two-way: a road pure air is directly entered in mixing drier 105 by pipeline；Another road pure air enters the nebulizer 104 equipped with standard sample suspension by pipeline, described nebulizer 104 gushes out the particulate matter droplet of standard sample, droplet enters in mixing drier 105 and mixes with previous road pure air, so that the moisture on standard particle surface volatilizees completely, form test bioaerosol.
In the present embodiment, nebulizer 104 is air compression type nebulizer.According to venturi ejector principle, utilizing compressed air to pass through the tiny mouth of pipe and form high velocity air, the negative pressure of generation drives liquid or other fluid to be ejected into together on obstacle, under high-speed impact to around splash and make drop become vaporific microgranule to spray from escape pipe.Before described pressure-regulating valve 103 is placed in nebulizer 104, realize the function of regulation aerosol concentration by changing the atomizing pressure of described nebulizer 104.
Described closed cabin 2 is used for providing uniform and stable bioaerosol environment.The volume of described closed cabin 2 is real-time flcating germ calculating instrument to be measured is advisable with more than 2 times of the sampling quantity sum per minute with reference to model machine 3.Described closed cabin 2 has pore, keeps elsewhere sealing.Having four pores in this embodiment, described four pores connect the gas outlet of bioaerosol generating means 1, respectively with reference to the air inlet of model machine 3, connector 4 and the pipeline of microbial decontamination device 5.
The test result of described reference model machine 3 is as the reference value of real-time flcating germ calculating instrument performance evaluation to be measured, for the performance of relative analysis real-time flcating germ calculating instrument to be measured.The performance indications examining real-time flcating germ calculating instrument are different, and used is the most different with reference to model machine 3.Such as, when examining the index such as counting efficiency of the particle diameter shelves counting error of indication of real-time flcating germ calculating instrument, standard fluorescence particle, it is light scattering type particle enumerator with reference to model machine 3；When examining the biomone false recognition rate of real-time flcating germ calculating instrument, biomone counting efficiency, accuracy index, it is microorganism sampler with reference to model machine 3.
Described microbial decontamination device 5 is for aerosol disinfection out in closed cabin, eliminating the pollution of bioaerosol air to external world.
It should be understood that; above-described embodiment is only for illustrating technology of the present utility model design and feature; its object is to for skilled in the art realises that content of the present utility model and implementing according to this, not detailed description of the invention is exhaustive, can not limit protection domain of the present utility model with this.All modifying according to the technical solution of the utility model or equivalent, without deviating from objective and the scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.
Claims (6)
1. the performance testing device of a real-time flcating germ calculating instrument, it is characterised in that include aerosol generating device (1), closed cabin (2), reference model machine (3) and connector (4)；Described closed cabin (2) connects described aerosol generating device (1) by pore, with reference to model machine (3) and connector (4).
The performance testing device of real-time flcating germ calculating instrument the most according to claim 1, it is characterised in that also include decontaminating apparatus (5), described decontaminating apparatus (5) is connected with closed cabin (2) by pore.
The performance testing device of real-time flcating germ calculating instrument the most according to claim 1, it is characterized in that, described aerosol generating device (1) includes source of the gas (101), filter (102), nebulizer (104) and exsiccator (105), described source of the gas (101) air out, after described filter (102), is divided into two-way and respectively enters described nebulizer (104) and exsiccator (105).
The performance testing device of real-time flcating germ calculating instrument the most according to claim 3, it is characterized in that, also include that pressure-regulating valve (103), described pressure-regulating valve (103) are placed between filter (102) and nebulizer (104).
The performance testing device of real-time flcating germ calculating instrument the most according to claim 3, it is characterised in that described source of the gas (101) is air compressor machine or liquefied gas bottle.
The performance testing device of real-time flcating germ calculating instrument the most according to claim 3, it is characterised in that described nebulizer (104) is air compression type nebulizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043607.4U CN205506642U (en) | 2015-12-15 | 2015-12-15 | Performance detection device of real -time airborne viable particles calculating instrument |
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| CN201521043607.4U CN205506642U (en) | 2015-12-15 | 2015-12-15 | Performance detection device of real -time airborne viable particles calculating instrument |
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| CN205506642U true CN205506642U (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754736A (en) * | 2017-10-16 | 2018-03-06 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microbial aerosol Dynamic |
| CN107990928A (en) * | 2017-11-22 | 2018-05-04 | 北京市计量检测科学研究院 | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling |
-
2015
- 2015-12-15 CN CN201521043607.4U patent/CN205506642U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754736A (en) * | 2017-10-16 | 2018-03-06 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microbial aerosol Dynamic |
| CN107754736B (en) * | 2017-10-16 | 2024-06-04 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Microorganism aerosol dynamic generating device |
| CN107990928A (en) * | 2017-11-22 | 2018-05-04 | 北京市计量检测科学研究院 | Detection method, system and the device of the physical efficiencies of flcating germ sampling head sampling |
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