CN214201102U - In-situ leakage detection mechanism for high-efficiency filter of biological safety air port - Google Patents
In-situ leakage detection mechanism for high-efficiency filter of biological safety air port Download PDFInfo
- Publication number
- CN214201102U CN214201102U CN202023149313.3U CN202023149313U CN214201102U CN 214201102 U CN214201102 U CN 214201102U CN 202023149313 U CN202023149313 U CN 202023149313U CN 214201102 U CN214201102 U CN 214201102U
- Authority
- CN
- China
- Prior art keywords
- efficiency
- filtration efficiency
- filter
- filtering efficiency
- sampling strip
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an in-situ leak detection mechanism for a biosafety tuyere high-efficiency filter, including filtration efficiency sampling strip, lead screw and filtration efficiency test crank, the filtration efficiency test crank is arranged in the installation cavity and is connected with one end of the lead screw, the other end of the lead screw extends downwards into the filter accommodating cavity and is connected with the filtration efficiency sampling strip thread which is transversely arranged, a plurality of sampling holes are arranged on the filtration efficiency sampling strip, a filtration efficiency test port for connecting a gas detector is arranged on the box body, and the filtration efficiency sampling strip is connected with the filtration efficiency test port through a hose; when the filtration efficiency test crank drives the filtration efficiency through the lead screw and gets the spline and reciprocate, the filtration efficiency gets the spline and can scan whole high efficiency filter to gaseous the sending to gas detection appearance of taking a sample and detect. The in-situ leakage detection mechanism is integrated in the box body of the biological safety air port, the detection result is real and accurate, the cost is low, and the operation is convenient and trouble-saving.
Description
Technical Field
The utility model relates to a biological protection technique and equipment field, more specifically say, are a be applied to biological safety wind gap high efficiency filter's normal position leak hunting mechanism in biological safety, the biological clean facility such as biological safety laboratory.
Background
The biological safety high-efficiency tuyere is applied to special places such as a biological safety laboratory and the like, so that the requirement on the filtering efficiency of the tuyere is higher. After the air filter is used for a period of time, the high-efficiency filter needs to be taken out of the air inlet and placed into special equipment for detecting the air filtering effect, and the adopted special equipment is complex in structure and high in price in order to realize uniform mixing of filtered air. In addition, the high efficiency filter has differences between the special equipment and the actual installation environment, so that the detection result has deviation, and the mode of detaching the detection is very troublesome.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a set up high efficiency filter normal position leak hunting mechanism in biological safety wind gap, need not take out high efficiency filter from biological safety high efficiency wind gap to the testing result is true more accurate, and is with low costs, and convenient operation saves trouble.
Therefore, the utility model discloses the technical scheme who adopts does: an in-situ leak detection mechanism for a high-efficiency filter of a biological safety tuyere comprises a filtering efficiency sampling strip, a lead screw and a filtering efficiency testing crank, wherein a box inner cavity of a reinforced type biological safety high-efficiency tuyere is divided into a filter accommodating cavity at the lower part and an installation cavity at the upper part, the filtering efficiency testing crank is arranged in the installation cavity and is connected with one end of the lead screw, the other end of the lead screw downwards extends into the filter accommodating cavity to be connected with a filtering efficiency sampling strip thread which is transversely arranged, the width of the filtering efficiency sampling strip is not less than that of the high-efficiency filter, a plurality of sampling holes are transversely arranged on the front surface of the filtering efficiency sampling strip at intervals, a filtering efficiency testing port for connecting a gas detector is arranged on a box body, and the filtering efficiency sampling strip is connected with the filtering efficiency testing port through a hose; when the filtering efficiency testing crank drives the filtering efficiency sampling strip to move up and down through the lead screw, the filtering efficiency sampling strip can scan the whole high-efficiency filter, so that the sampled gas is sent to a gas detector for detection;
the positive left and right sides interval that the spline was got to filtration efficiency evenly is provided with a plurality of muscle that separate to get the sampling hole that a plurality of rectangular shapes were cut apart into in the front of spline with filtration efficiency, hose connection gets the back of spline at filtration efficiency.
Preferably, the filter efficiency test crank is composed of a handle and a disc, and the handle is fixed on the disc.
Further preferably, the handle is welded and fixed to the disc.
Further preferably, the filtration efficiency test port is arranged in an installation cavity of the box body of the reinforced biological safe and efficient air port.
The utility model has the advantages that: the in-situ leak detection mechanism consisting of the filtering efficiency sampling strip, the lead screw and the filtering efficiency testing crank is integrally installed in a biosafety high-efficiency air port, and can perform in-situ leak detection on the high-efficiency filter; meanwhile, the in-situ leakage detection mechanism is completely hidden in the box body, when the box body needs to be overhauled, the upper cover plate is opened, the filtering efficiency testing crank can be rotated to perform in-situ leakage detection, and the overall appearance is not influenced.
Drawings
Fig. 1 is a schematic view of the installation of the utility model in a biosafety high-efficiency tuyere.
Fig. 2 is a state of fig. 1 with the intake panel and the high efficiency filter removed.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a side view of fig. 1.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-4, an in-situ leak detection mechanism for a high-efficiency filter of a biological safety tuyere mainly comprises a filtering efficiency sampling strip 5, a screw rod 6, a filtering efficiency testing crank 7, a filtering efficiency testing port 8 and a hose 9.
The box body 1, the air inlet panel 2, the air outlet 3, the pressure difference meter 4 and the high-efficiency filter are components of a biological safety high-efficiency air port. The inner cavity of the box body 1 is divided into a filter accommodating cavity 1a at the lower part and an installation cavity 1b at the upper part, the filter accommodating cavity 1a is used for installing a high-efficiency filter, and the installation cavity 1b is used for installing parts such as instruments.
High efficiency filter installs in filter holds chamber 1a, and air inlet panel 2 is installed in the front of box 1 and just to high efficiency filter, and the pressure differential table 4 is installed on the positive upper portion of box, and air outlet 3 is installed at the top of box 1, airs exhaust through air inlet panel 2 get into in the box 1, discharge from air outlet 3 after high efficiency filter filters. The above description is consistent with the existing biosafety high-efficiency tuyere, and is not repeated herein.
The filtering efficiency sampling strip 5, the screw rod 6 and the filtering efficiency testing crank 7 are arranged in the box body 1. The filter efficiency test crank 7 is arranged in the installation cavity 1b and is connected with one end of the screw rod 6, and the other end of the screw rod 6 downwards extends into the filter accommodating cavity 1a and is connected with the filter efficiency sampling strip 5 transversely arranged in a threaded mode. The screw 6 and the filtering efficiency sampling strip 5 form a screw nut mechanism, and when the filtering efficiency testing crank 7 drives the screw 6 to rotate, the filtering efficiency sampling strip 5 moves up and down in the box body 1 to scan.
The width of the filtering efficiency sampling strip 5 is not less than that of the high-efficiency filter, so that the whole high-efficiency filter can be swept when the filtering efficiency sampling strip 5 moves up and down.
The positive horizontal interval that the spline 5 was got to filtration efficiency is equipped with a plurality of thief holes 5a, realizes horizontal even sample because filtration efficiency sample strip passes through the negative pressure sample, if the sample connection can not transversely cover, so be close to hose position department sample gas many, the sample at filtration efficiency sample strip both ends is few, will influence the accuracy and the sampling efficiency of sample.
Be provided with the filtration efficiency test mouth 8 that is used for connecting gas detection appearance on the box 1, filtration efficiency gets spline 5 and passes through hose 9 and link to each other with filtration efficiency test mouth 8.
When filtering efficiency test crank 7 passed through 6 drive filtering efficiency of lead screw and got spline 5 and reciprocate, filtering efficiency got spline 5 and can scan whole high efficiency filter to send sample gas to gas detection appearance and detect.
The filtration efficiency gets spline 5's front left and right sides interval and evenly is provided with a plurality of muscle that separate to get spline 5's front with filtration efficiency and cut apart into the thief hole 5a of a plurality of rectangular shapes, hose 9 is connected and is got the back of spline 5 at filtration efficiency. The mode of sampling from the front and connecting the hose to the back is adopted, which is more favorable for the overall layout. Simultaneously the sampling hole adopts rectangular shape to compare little round hole, and the gas perforation rate is higher, and the resistance of admitting air is littleer, and sampling efficiency is higher.
The high efficiency filter is tightly pressed and installed in the box body 1 through a plurality of pressing buckles 10, the pressing buckles 10 are rotatably installed on the box body 1, the installation is convenient and rapid, and the high efficiency filter can be installed, disassembled and replaced only by rotating the pressing buckles. Preferably, there are two press buttons 10 on the upper side and the lower side, and one press button 10 on the middle of the left side and the right side, for a total of 6 press buttons 10.
The front part of the top of the box body 1 is high and the rear part is low to form a sinking platform, the air outlet 3 is positioned on the sinking platform, and the height of the air outlet 3 is equal to that of the sinking platform, so that the top of the air outlet 3 is just flush with the front end of the top of the box body 1, the air outlet is skillfully arranged by utilizing the space at the rear part of the top of the box body, the overall height size of the air outlet can be better reduced after the air outlet is installed, and the air outlet is particularly suitable for being installed in occasions with limited height space; and the air outlet is more concealed, and the sense of unity, uniformity are better.
Preferably, the filter efficiency test crank 7 is composed of a handle 7a and a disc 7b, the handle 7a is welded and fixed on the disc 7a, the rotation is easier and more labor-saving, and a manual rotation mode is adopted, so that the manufacturing cost is low.
The filtration efficiency test port 8 is arranged in the installation cavity 1b of the box body 1 of the reinforced biological safe and efficient air port.
The left side wall and the right side wall of the box body 1 are respectively provided with an L-shaped mounting plate 11, a first plane 11a of the L-shaped mounting plate 11 is fixedly mounted on the side wall of the box body 1, first strip holes 11b extending forwards and backwards are formed in the first plane 11a at intervals from top to bottom, and the L-shaped mounting plate can be mounted on the side wall with the hole in the wall body in a front-back adjusting mode according to the thickness of the wall body. The second plane 11c of the L-shaped mounting plate 11 is arranged in parallel at the rear side of the front panel, and the second plane 11c is provided with second elongated holes 11d extending up and down at intervals, and can be mounted on the wall body in a vertically adjustable manner. Four sides of the front panel all extend out of the box body 1 to prevent gaps between the main body of the air outlet and the holes of the wall body from being exposed after installation. Can install on the lateral wall of wall body trompil according to wall body thickness with adjusting back and forth, can adjust the installation from top to bottom as required again, the adaptability is better, and the commonality is higher to the front panel after the installation can cover the gap between box and the wall body trompil, avoids the crack to appear.
Claims (4)
1. The utility model provides an in situ leak hunting mechanism for biological safety wind gap high efficiency filter which characterized in that: comprises a filtering efficiency sampling strip (5), a screw rod (6) and a filtering efficiency testing crank (7), wherein the inner cavity of a box body (1) of the reinforced biological safety high-efficiency tuyere is divided into a filter accommodating cavity (1a) at the lower part and a mounting cavity (1b) at the upper part, the filtering efficiency testing crank (7) is arranged in the mounting cavity (1b), and is connected with one end of a screw rod (6), the other end of the screw rod (6) extends downwards into a filter accommodating cavity (1a) to be connected with a filtering efficiency sampling strip (5) which is transversely arranged in a threaded manner, the width of the filtering efficiency sampling strip (5) is not less than that of the high-efficiency filter, a plurality of sampling holes (5a) are transversely arranged on the front surface of the filtering efficiency sampling strip (5) at intervals, a filtering efficiency testing port (8) used for connecting a gas detector is arranged on the box body (1), the filtering efficiency sampling strip (5) is connected with a filtering efficiency testing port (8) through a hose (9); when the filtering efficiency testing crank (7) drives the filtering efficiency sampling strip (5) to move up and down through the lead screw (6), the filtering efficiency sampling strip (5) can scan the whole efficient filter, so that the sampled gas is sent to a gas detector for detection;
the interval evenly is provided with a plurality of muscle that separate about filtration efficiency gets the front of spline (5) to cut apart into thief hole (5a) of a plurality of rectangular shapes with filtration efficiency getting the front of spline (5), hose (9) are connected and are got the back of spline (5) at filtration efficiency.
2. The in-situ leak detection mechanism for the bio-safety tuyere high-efficiency filter as claimed in claim 1, wherein: the filtration efficiency test crank (7) is composed of a handle (7a) and a disc (7 b).
3. The in-situ leak detection mechanism for the bio-safety tuyere high-efficiency filter as claimed in claim 2, wherein: the handle (7a) is welded and fixed on the disc (7 b).
4. The in-situ leak detection mechanism for the bio-safety tuyere high-efficiency filter as claimed in claim 1, wherein: the filtration efficiency test port (8) is arranged in the installation cavity (1b) of the box body (1) of the reinforced biological safe and efficient air port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023149313.3U CN214201102U (en) | 2020-12-23 | 2020-12-23 | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023149313.3U CN214201102U (en) | 2020-12-23 | 2020-12-23 | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214201102U true CN214201102U (en) | 2021-09-14 |
Family
ID=77656189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023149313.3U Active CN214201102U (en) | 2020-12-23 | 2020-12-23 | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214201102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763390A (en) * | 2020-12-23 | 2021-05-07 | 重庆海润节能技术股份有限公司 | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port |
-
2020
- 2020-12-23 CN CN202023149313.3U patent/CN214201102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763390A (en) * | 2020-12-23 | 2021-05-07 | 重庆海润节能技术股份有限公司 | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214201102U (en) | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port | |
| CN101796388A (en) | Particle detector | |
| CN214201101U (en) | Biological safe and efficient air port with in-situ leakage detection function | |
| CN106324197A (en) | Atmospheric pollution detection device convenient to clean | |
| CN112755665A (en) | Biological safe and efficient air port with in-situ leakage detection function | |
| CN115468885A (en) | Dust concentration test assembly | |
| CN109821850B (en) | Biological safety exhaust system | |
| CN112763390A (en) | In-situ leakage detection mechanism for high-efficiency filter of biological safety air port | |
| CN213091895U (en) | Portable automatic sampling and analyzing device for radioactive aerosol | |
| CN211877542U (en) | Dust sampling device suitable for different level | |
| CN216349844U (en) | Gas sampling device for air filter | |
| CN216816190U (en) | Empty gas detection surveys device for oil filter | |
| CN216208401U (en) | Dustless detection device of toilet | |
| CN115931682A (en) | Filter material dynamic performance tester and testing method thereof | |
| CN115586117A (en) | Portable direct-reading dust concentration measuring instrument | |
| CN208799892U (en) | A kind of gas sampling filter | |
| CN115127969A (en) | Dust removal efficiency detector and operation process | |
| CN208459224U (en) | Filter membrane/filter cylinder arresting efficiency and resistance detection device | |
| CN211010818U (en) | Gas pipeline body damage leakage detector | |
| CN208636277U (en) | A kind of automobile emission gas analyzer instrument of installation easy to disassemble | |
| CN111289315A (en) | Dust sampling device suitable for different level | |
| CN219391951U (en) | Online monitoring device for greenhouse gas emission concentration | |
| CN112033876A (en) | Air filter test system for general ventilation | |
| CN112414794A (en) | Automatic fluoride tester | |
| CN214224628U (en) | Double-head type constant-current dust sampling instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |