CN205403910U - Airborne viable particles sample thief connector for sampling flow measurement calibration - Google Patents
Airborne viable particles sample thief connector for sampling flow measurement calibration Download PDFInfo
- Publication number
- CN205403910U CN205403910U CN201620123929.8U CN201620123929U CN205403910U CN 205403910 U CN205403910 U CN 205403910U CN 201620123929 U CN201620123929 U CN 201620123929U CN 205403910 U CN205403910 U CN 205403910U
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- CN
- China
- Prior art keywords
- connector
- adapter
- gas
- gas outlet
- calibration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to an airborne viable particles sample thief connector for sampling flow measurement calibration. Including gaseous roots flowmeter's gas outlet, still include the sealing member, the connector be the ring form, is equipped with annular bulge I on a connector terminal surface, is equipped with echelonment annular bulge II on another terminal surface of connector, connector annular bulge end sets up on the face of gaseous roots flowmeter gas outlet end, the annular bulge I of connector places the gas outlet in, gaseous roots flowmeter gas outlet and connector annular bulge terminal surface between be equipped with the sealing member. The advantage is: can make things convenient for fast, accurate measurement gas production flow, for the calibration of airborne viable particles sample thief provides the calibration foundation, make the testing result more accurate.
Description
Technical field
This utility model relates to a kind of borne bacteria sampler sampling flow measurement and calibration adapter.
Background technology
Aerial bacterioplankton sampler is a kind of efficient porous suction-type sampler, it is based on Anderson collision theory, stroke speed is 10.8m/s, namely principle is: air is sucked by the getter device of instrument by porous sampling head, strike on the culture dish of specific dimensions, namely microorganism in air is " trapped " on agar culture medium, and carries out cultivating detection to it, so that it is determined that air quality situation.This instrument can be widely applied to pharmaceuticals industry, food industry, beverage tap water, medicine inspecting institute, health and epidemic prevention, hospital, public place etc. about industry and department.
At present for the calibration gas outlet of borne bacteria sampler gas flow, there is no vertification regulation or the calibrating standard of country, its main test index and gas production flow are also without unified calibration utensil, generally all use gas roots flowmeter that its gas flow is calibrated detection, aerial bacterioplankton sampler air entry is docked on the gas outlet of gas roots flowmeter and carries out detection of gas flow rate, its weak point is: two kinds of instruments directly contact and can not fully seal, centre has gas leakage, causes the inaccurate of gas flow measurement.
Summary of the invention
In view of the deficiency that prior art exists, this utility model provides a kind of gas borne bacteria sampler sampling flow measurement and calibration adapter, the use of adapter, overcomes the deficiency that prior art exists, it is possible to accurately measures gas production flow, and then provides calibration foundation.
The technical solution adopted in the utility model is: a kind of borne bacteria sampler sampling flow measurement and calibration adapter, gas outlet including gas roots flowmeter, it is characterized in that: also include sealing member, described adapter is annular solid, adapter end face is provided with annular projection I, adapter other end is provided with stepped annular projection II, described adapter ring-type protruding end is arranged on the face of gas roots flowmeter outlet port, the annular projection I of adapter is placed in gas outlet, it is provided with sealing member between the face and adapter ring-type protruding end face of gas roots flowmeter gas outlet.
Advantage of the present utility model: above adapter, design has an annular projection, size is completely closely sealed with the outlet of rotz flowmeter, also has the use of sealing member, and therefore adapter is inserted into the outlet of rotz flowmeter and can fully seal, and does not have the leakage of gas；
The envisaged underneath of adapter has the stepped annular projection being connected with borne bacteria sampler air entry so that the gas flowing through rotz flowmeter is completely all inhaled into borne bacteria sampler so that the accurate measurement of sampling flow.
In a word, it is possible to quick and convenient, accurately measure gas production flow, for borne bacteria sampler calibration provide calibration foundation, make testing result more accurate.
Accompanying drawing explanation
Fig. 1 is the structure chart of this utility model adapter, sealing member connection；
Fig. 2 is the rearview of this utility model adapter；
Fig. 3 is the schematic diagram of prior art gas roots flowmeter；
Fig. 4 is the upward view of Fig. 3.
Detailed description of the invention
Below in conjunction with drawings and the embodiments, this utility model is described in further detail.
As shown in Figure 1,2,3, 4, a kind of adapter of gas roots flowmeter sampling flow, gas outlet 1-1 including gas roots flowmeter 1, also include sealing member 2, adapter 3 is annular solid, adapter 3 end face is provided with annular projection I 3-1, adapter 3 other end is provided with stepped annular projection II 3-2.
During use, detected borne bacteria sampler is placed in horizontal table top, detected borne bacteria sampler air entry is placed adapter, adapter stepped annular projection II 3-2 is together with air entry spiral-lock, then sampling flow detecting device is placed above at adapter, adapter annular projection I 3-1 inserts in the gas outlet 1-1 of gas roots flowmeter 1, it is placed with sealing member 2 between the face of gas roots flowmeter 1 gas outlet 1-1 and adapter 3 annular projection end face, can fully seal, can be carried out detection afterwards.
When borne bacteria sampler is started working, first the gas of adapter upper and lower (including rotz flowmeter gas outlet) is sucked, then the air inlet of gas roots flowmeter is caused to change with the pressure of gas outlet, the impeller in gas roots flowmeter is driven to rotate, sensor can through temperature-compensating and pressure compensation by the flow indication of gas on screen, the gas flow of accumulation may finally be calculated, thus calculating the flow error of borne bacteria sampler.Can detecting rapidly the flow of borne bacteria sampler, and in conjunction with atmospheric pressure, air themperature etc., make testing result accurate, method is suitable.
Claims (1)
1. a borne bacteria sampler sampling flow measurement and calibration adapter, gas outlet (1-1) including gas roots flowmeter (1), it is characterized in that: also include sealing member (2), described adapter (3) is annular solid, adapter (3) end face is provided with annular projection I (3-1), adapter (3) other end is provided with stepped annular projection II (3-2), described adapter (3) annular projection end is arranged on the face of gas roots flowmeter (1) outlet port, the annular projection I (3-1) of adapter (3) is placed in gas outlet (1-1), it is provided with sealing member (2) between the face and adapter (3) annular projection end face of gas roots flowmeter (1) gas outlet (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123929.8U CN205403910U (en) | 2016-02-17 | 2016-02-17 | Airborne viable particles sample thief connector for sampling flow measurement calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123929.8U CN205403910U (en) | 2016-02-17 | 2016-02-17 | Airborne viable particles sample thief connector for sampling flow measurement calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205403910U true CN205403910U (en) | 2016-07-27 |
Family
ID=56448441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620123929.8U Expired - Fee Related CN205403910U (en) | 2016-02-17 | 2016-02-17 | Airborne viable particles sample thief connector for sampling flow measurement calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205403910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500804A (en) * | 2016-12-05 | 2017-03-15 | 天津市计量监督检测科学研究院 | A kind of vane type borne bacteria sampler flow calibrating device |
-
2016
- 2016-02-17 CN CN201620123929.8U patent/CN205403910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500804A (en) * | 2016-12-05 | 2017-03-15 | 天津市计量监督检测科学研究院 | A kind of vane type borne bacteria sampler flow calibrating device |
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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: 20160727 Termination date: 20200217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |