CN202471561U - Double flow dust particle counting device - Google Patents
Double flow dust particle counting device Download PDFInfo
- Publication number
- CN202471561U CN202471561U CN2011204692535U CN201120469253U CN202471561U CN 202471561 U CN202471561 U CN 202471561U CN 2011204692535 U CN2011204692535 U CN 2011204692535U CN 201120469253 U CN201120469253 U CN 201120469253U CN 202471561 U CN202471561 U CN 202471561U
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- flow meter
- tracheae
- outlet end
- particle counter
- air
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- Expired - Lifetime
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a double flow dust particle counting device, which comprises a dust particle counting device, an efficient filter for clean air source supplement and a connection system for a determinand filter. The connection system for the determinand filter comprises the dterminand filter, a first flow meter, a port and an air pipe. An air outlet end of the determinand filter is connected with an air inlet end of the first flow meter through the port and the air pipe. The air outlet end of the first flow meter is connected with a first connection mouth of a tee joint through the air pipe. An air outlet end of the efficient filter for clean air source supplement is connected with a second connection mouth of the tee joint through the air pipe and a third connection mouth of the tee joint is connected with a sampling hole of the dust particle counting device through the air pipe. By means of the double flow dust particle counting device, the measuring result is more accurate and the double flow dust particle counting device is capable of disconnecting and connecting with the tee joint to be an ideal apparatus of one machine with dual purpose for disposable blood transfusion, fluid infusion apparatus manufacturers and detection departments thereof.
Description
Technical field
The utility model relates to a kind of airborne particle counter, relates in particular to the high double fluid amount airborne particle counter of a kind of measuring accuracy; Belong to technical field of measuring equipment.
Background technology
Stipulate among GB 8368-1998 " disposable infusion set " 6.5.2 that " the air inlet device should have an air strainer, with the container that prevents that microorganism from getting into it and inserted.When by appendix B (air strainer rejection rate test method) when testing, air strainer should be not less than 90% to the rejection rate of the above particulate of 0.5 μ m in the air." medical high polymer product quality inspection center of former State Pharmaceutical Administration is the unit of drafting of above-mentioned GB; for the feasibility of standard after putting into effect; they are when doing the test of air strainer rejection rate; use the logical airborne particle counter of a Daepori to build a cover test macro, system comprises airborne particle counter and filtrator to be measured coupling part shown in accompanying drawing 1.Said airborne particle counter mainly comprises thief hatch, optical sensor module, data processor, main flow meter, air pump; Said filtrator to be measured coupling part comprises filtrator to be measured, first flow meter and tracheae; The endpiece of said filtrator to be measured links to each other with the air intake opening end of first flow meter through tracheae, and the gas outlet end of said first flow meter is connected the back and links to each other with the air intake opening end of sensor module with the thief hatch of airborne particle counter; The gas outlet end of said sensor module links to each other with the air intake opening end of main flow meter; The gas outlet end of said main flow meter links to each other with the air intake opening end of air pump; Said optical sensor module utilizes light scattering principle, makes through the dust in the air-flow of its photosensitive area and produces light pulse, converts electric impulse signal output to by electrooptical device again; The electric impulse signal that said data handling system transports sensor module amplifies and counts processing.
Sampling flow through filtrator to be measured during experiment is 50mL/min, and the flow of the flowmeter through airborne particle counter also can only be 50mL/min, because on a gas circuit, two kinds of flows can not occur.And the flow of the standard sample amount 2.83L/min of the flow of 50mL/min and airborne particle counter far apart (reaching 56.6 times) can produce the repeat count of sensor module, so test data is inaccurate.
The utility model content
The utility model purpose is to provide a kind of measuring accuracy high double fluid amount airborne particle counter for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of double fluid amount airborne particle counter comprises airborne particle counter, the high efficiency particulate air filter that replenishes clean gas source and the connected system of filtrator to be measured; Said airborne particle counter comprises thief hatch, optical sensor module, data processor, main flow meter, air pump; The connected system of said filtrator to be measured comprises filtrator to be measured, first flow meter, interface and tracheae; The gas outlet end of said filtrator to be measured links to each other with the air intake opening end of first flow meter through interface, tracheae; The gas outlet end of said first flow meter connects mouth through tracheae with first of threeway and links to each other; The gas outlet end of the high efficiency particulate air filter of said additional clean gas source connects mouth through tracheae with second of threeway and is connected; The 3rd of said threeway connects mouth and is connected with the thief hatch of airborne particle counter through tracheae; Said thief hatch links to each other with the optical sensor module air intake opening through tracheae; The gas outlet end of said optical sensor module links to each other with the air intake opening end of main flow meter through tracheae; The gas outlet end of said main flow meter links to each other with the air intake opening end of air pump through tracheae.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The double fluid amount airborne particle counter of the utility model; Increased the high efficiency particulate air filter of additional clean gas source; At first guarantee the sampling flow National standard regulation 50mmL/min of filtrator to be measured through adjustment; Again can be through replenishing the standard sample amount 2.83L/min that clean gas source satisfies airborne particle counter; Be able under the demarcation condition of airborne particle counter, carry out thereby make to measure, this is far smaller than the repeat count of measuring under the condition of standard sample amount 2.83L/min and causing because avoided using common airborne particle counter Direct Sampling 50mmL/min, so measurement result is more accurate; The airborne particle counter of the utility model both can break off threeway, by the thief hatch direct sample, detected the purification rank of environment purification easily; The connected system that can connect high efficiency particulate air filter and the filtrator to be measured of threeway and additional clean gas source again is connected tests disposable use blood transfusion, the infusion set rejection rate with air strainer accurately; Become the desirable instrument of disposable use blood transfusion, infusion set manufacturer and the department of detection dual-use thereof.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
The process of gas path figure of accompanying drawing 1 existing common airborne particle counter;
The process of gas path figure of the double fluid amount airborne particle counter of accompanying drawing 2 the utility model;
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
The described a kind of double fluid amount airborne particle counter of the utility model shown in accompanying drawing 2 comprises airborne particle counter, the high efficiency particulate air filter that replenishes clean gas source and the connected system of filtrator to be measured; Said airborne particle counter comprises thief hatch, optical sensor module, data processor, main flow meter, air pump; The connected system of said filtrator to be measured comprises filtrator to be measured, first flow meter, interface and tracheae; The gas outlet end of said filtrator to be measured links to each other with the air intake opening end of first flow meter through interface, tracheae; The gas outlet end of said first flow meter connects mouth through tracheae with first of threeway and links to each other; The gas outlet end of the high efficiency particulate air filter of said additional clean gas source connects mouth through tracheae with second of threeway and is connected; The 3rd of said threeway connects mouth and is connected with the thief hatch of airborne particle counter through tracheae; Said thief hatch links to each other with the optical sensor module air intake opening through tracheae; The gas outlet end of said optical sensor module links to each other with the air intake opening end of main flow meter through tracheae; The gas outlet end of said main flow meter links to each other with the air intake opening end of air pump through tracheae; Said optical sensor module utilizes light scattering principle, makes through the dust in the air-flow of its photosensitive area and produces light pulse, converts electric impulse signal output to by electrooptical device again; The electric impulse signal that said data processor transports optical sensor module amplifies and counts processing; Flow adjustment 50mL/min through said filtrator to be measured; The flow of said main flow meter is adjusted into 2.83L/min, and the difference in flow of main flow meter and filtrator to be measured is replenished by the clean gas source of the high efficiency particulate air filter that passes through additional clean gas source.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The double fluid amount airborne particle counter of the utility model; Increased the high efficiency particulate air filter of additional clean gas source; At first guarantee the sampling flow National standard regulation 50mmL/min of filtrator to be measured through adjustment; Again can be through replenishing the standard sample amount 2.83L/min that clean gas source satisfies airborne particle counter; Be able under the demarcation condition of airborne particle counter, carry out thereby make to measure, this is far smaller than the repeat count of measuring under the condition of standard sample amount 2.83L/min and causing because avoided using common airborne particle counter Direct Sampling 50mmL/min, so measurement result is more accurate; The airborne particle counter of the utility model both can break off threeway, by the thief hatch direct sample, detected the purification rank of environment purification easily; The connected system that can connect high efficiency particulate air filter and the filtrator to be measured of threeway and additional clean gas source again is connected tests disposable use blood transfusion, the infusion set rejection rate with air strainer accurately; Become the desirable instrument of disposable use blood transfusion, infusion set manufacturer and the department of detection dual-use thereof.
Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (1)
1. a double fluid amount airborne particle counter is characterized in that: comprise airborne particle counter, the high efficiency particulate air filter that replenishes clean gas source and the connected system of filtrator to be measured; Said airborne particle counter comprises thief hatch, optical sensor module, data processor, main flow meter, air pump; The connected system of said filtrator to be measured comprises filtrator to be measured, first flow meter, interface and tracheae; The gas outlet end of said filtrator to be measured links to each other with the air intake opening end of first flow meter through interface, tracheae; The gas outlet end of said first flow meter connects mouth through tracheae with first of threeway and links to each other; The gas outlet end of the high efficiency particulate air filter of said additional clean gas source connects mouth through tracheae with second of threeway and is connected; The 3rd of said threeway connects mouth and is connected with the thief hatch of airborne particle counter through tracheae; Said thief hatch links to each other with the optical sensor module air intake opening through tracheae; The gas outlet end of said optical sensor module links to each other with the air intake opening end of main flow meter through tracheae; The gas outlet end of said main flow meter links to each other with the air intake opening end of air pump through tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204692535U CN202471561U (en) | 2011-11-23 | 2011-11-23 | Double flow dust particle counting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204692535U CN202471561U (en) | 2011-11-23 | 2011-11-23 | Double flow dust particle counting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471561U true CN202471561U (en) | 2012-10-03 |
Family
ID=46919713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204692535U Expired - Lifetime CN202471561U (en) | 2011-11-23 | 2011-11-23 | Double flow dust particle counting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134746A (en) * | 2011-11-23 | 2013-06-05 | 苏州宏瑞净化科技有限公司 | Double-flow particle counter |
| 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 |
-
2011
- 2011-11-23 CN CN2011204692535U patent/CN202471561U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134746A (en) * | 2011-11-23 | 2013-06-05 | 苏州宏瑞净化科技有限公司 | Double-flow particle counter |
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |