CN112755665A - Biological safe and efficient air port with in-situ leakage detection function - Google Patents
Biological safe and efficient air port with in-situ leakage detection function Download PDFInfo
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- CN112755665A CN112755665A CN202011541027.3A CN202011541027A CN112755665A CN 112755665 A CN112755665 A CN 112755665A CN 202011541027 A CN202011541027 A CN 202011541027A CN 112755665 A CN112755665 A CN 112755665A
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 59
- 238000005070 sampling Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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- Dispersion Chemistry (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a biosafety high-efficiency air port with an in-situ leakage detection function, which comprises a box body, an air inlet panel, an air outlet, a differential pressure gauge and a high-efficiency filter, wherein a filtering efficiency sampling strip, a screw rod and a filtering efficiency testing crank are arranged in the box body; 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 leak detection function is integrated, the detection result is real and accurate, the cost is low, and the operation is convenient and trouble-saving.
Description
Technical Field
The invention relates to the field of biological protection technology and equipment, in particular to a tuyere structure applied to biological safety and biological clean facilities such as a biological safety laboratory and the like.
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.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the biosafety high-efficiency air port with the in-situ leakage detection function, the high-efficiency filter does not need to be taken out of the biosafety high-efficiency air port, the detection result is more real and accurate, the cost is low, and the operation is convenient and trouble-saving.
Therefore, the technical scheme adopted by the invention is as follows: a biosafety high-efficiency air port with an in-situ leakage detection function comprises a box body, an air inlet panel, an air outlet, a differential pressure gauge and a high-efficiency filter, wherein an inner cavity of the box body is divided into a filter accommodating cavity at the lower part and an installation cavity at the upper part, the high-efficiency filter is installed in the filter accommodating cavity, the air inlet panel is installed at the front of the box body and just opposite to the high-efficiency filter, the differential pressure gauge is installed at the upper part of the front of the box body, the air outlet is installed at the top of the box body, a filtering efficiency sampling strip, a lead screw and a filtering efficiency testing crank are arranged in the box body, 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, the box body is provided with a filtering efficiency test port for connecting a gas detector, and the filtering efficiency sampling strip is connected with the filtering 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.
Preferably, the high-efficiency filter is tightly pressed and installed in the box body through a plurality of pressing buckles, and the pressing buckles are rotatably installed on the box body.
Further preferably, the top of the box body is high in front and low in back to form a sinking platform, the air outlet is located on the sinking platform, and the height of the air outlet is equal to that of the sinking platform, so that the top of the air outlet is flush with the front end of the top of the box body.
Preferably, the left side wall and the right side wall of the box body are respectively provided with an L-shaped mounting plate, a first plane of the L-shaped mounting plate is fixedly mounted on the side wall of the box body and is provided with first long holes extending forwards and backwards at intervals from top to bottom, a second plane of the L-shaped mounting plate is arranged at the rear side of the front panel in parallel, second long holes extending upwards and downwards are arranged at intervals from top to bottom on the second plane, and four side edges of the front panel extend out of the box body.
The invention has the beneficial effects that: the in-situ leak detection mechanism consisting of a filtering efficiency sampling strip, a screw rod and a filtering efficiency testing crank is integrated in the biosafety high-efficiency air port, so that the in-situ leak detection of the high-efficiency filter can be carried out, when the device is used specifically, the filtering efficiency testing crank needs to be shaken to sample filtered gas at different positions, filtering efficiency detection values are recorded respectively, the average value of all the filtering efficiency detection values is calculated again to obtain the filtering efficiency of the high-efficiency filter, the measured value can be effectively ensured to be accurate and objective, the operation is convenient, the trouble of assembling and disassembling the high-efficiency filter for inspection is eliminated, the detection cost is greatly reduced, and the detection efficiency is improved; 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 front view of the present invention.
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 the present invention.
Fig. 4 is a side view of the present invention.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1-4, a biosafety high-efficiency tuyere with an in-situ leak detection function mainly comprises a box body 1, an air inlet panel 2, an air outlet 3, a pressure difference meter 4, a high-efficiency filter (not shown in the figure), a filtering efficiency sampling strip 5, a screw rod 6, a filtering efficiency testing crank 7, a filtering efficiency testing port 8, a hose 9 and a pressing buckle 10.
Wherein, the box body 1, the air inlet panel 2, the air outlet 3, the pressure difference meter 4 and the high-efficiency filter are indispensable components of the biosafety 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 difference lies in that: a filtering efficiency sampling strip 5, a screw 6 and a 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.
Preferably, a plurality of separating ribs are uniformly arranged on the left side and the right side of the front surface of the filtering efficiency sampling strip 5 at intervals, so that the front surface of the filtering efficiency sampling strip 5 is divided into a plurality of strip-shaped sampling holes 5a, and the hose 9 is connected to the back surface of the filtering efficiency sampling strip 5. 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. Of course, the sampling hole can also be a small round hole, and the time spent in the filtration efficiency test is relatively longer.
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; and the air outlet is more concealed, and the sense of unity, uniformity are better.
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 a take high-efficient wind gap of biological safety of normal position leak hunting function, includes box (1), air inlet panel (2), air outlet (3), differential pressure table (4) and high efficiency filter, the filter that the inner chamber of box (1) divide into the lower part holds installation cavity (1b) on chamber (1a) and upper portion, and high efficiency filter installs in the filter holds chamber (1a), the front at box (1) is installed in air inlet panel (2) and just to high efficiency filter, and the positive upper portion at the box is installed in differential pressure table (4), and the top at box (1) is installed in air outlet (3), its characterized in that: the gas detector is characterized in that a filtering efficiency sampling strip (5), a lead screw (6) and a filtering efficiency testing crank (7) are arranged in the box body (1), the filtering efficiency testing crank (7) is arranged in the installation cavity (1b) and is connected with one end of the lead screw (6), the other end of the lead screw (6) downwards extends into the filter accommodating cavity (1a) to be connected with the filtering efficiency sampling strip (5) which is transversely arranged in a threaded manner, the width of the filtering efficiency sampling strip (5) is not smaller 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 formed in the box body (1), and the filtering efficiency sampling strip (5) is connected with the filtering efficiency testing port (8) through a hose (9); when filtration efficiency test crank (7) drive filtration efficiency through lead screw (6) and get spline (5) and reciprocate, filtration efficiency gets spline (5) and can scan whole high efficiency filter to send sample gas to gas detection appearance and detect.
2. The biosafety high-efficiency tuyere with the in-situ leak detection function according to claim 1, characterized in that: the high-efficiency filter is tightly pressed and installed in the box body (1) through a plurality of pressing buckles (10), and the pressing buckles (10) are rotatably installed on the box body (1).
3. The biosafety high-efficiency tuyere with the in-situ leak detection function according to claim 1, characterized in that: the box (1) top is high back-to-back and forms a sinking platform, the air outlet (3) is located 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 (1).
4. The biosafety high-efficiency tuyere with the in-situ leak detection function according to claim 1, characterized in that: 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), a first strip-shaped hole (11b) extending front and back is formed in the first plane (11a) at an upper interval and a lower interval, a second plane (11c) of the L-shaped mounting plate (11) is arranged on the rear side of the front panel in parallel, a second strip-shaped hole (11d) extending up and down is formed in the second plane (11c) at an upper interval and a lower interval, and four side edges of the front panel all extend out of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011541027.3A CN112755665A (en) | 2020-12-23 | 2020-12-23 | Biological safe and efficient air port with in-situ leakage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011541027.3A CN112755665A (en) | 2020-12-23 | 2020-12-23 | Biological safe and efficient air port with in-situ leakage detection function |
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| Publication Number | Publication Date |
|---|---|
| CN112755665A true CN112755665A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011541027.3A Pending CN112755665A (en) | 2020-12-23 | 2020-12-23 | Biological safe and efficient air port with in-situ leakage detection function |
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| CN (1) | CN112755665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629847A (en) * | 2023-12-06 | 2024-03-01 | 广州玖胜净化技术有限公司 | Air filter windage testing platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203100021U (en) * | 2012-11-13 | 2013-07-31 | 中国人民解放军军事医学科学院卫生装备研究所 | Efficient air port type biological-safety air filtration device |
| CN106890509A (en) * | 2017-04-24 | 2017-06-27 | 苏州英德尔室内空气技术有限公司 | A kind of air cleaner scanning leak detection device |
| CN207076233U (en) * | 2017-04-24 | 2018-03-09 | 苏州英德尔室内空气技术有限公司 | Air cleaner scanning leak detection device |
| CN211358308U (en) * | 2019-12-17 | 2020-08-28 | 天津昌特净化科技有限公司 | Biological safety efficient air exhaust filtering device |
| CN112097343A (en) * | 2020-09-28 | 2020-12-18 | 军事科学院系统工程研究院卫勤保障技术研究所 | Movable biological safety type air exhaust efficient filtering device |
| CN214201101U (en) * | 2020-12-23 | 2021-09-14 | 重庆海润节能技术股份有限公司 | Biological safe and efficient air port with in-situ leakage detection function |
-
2020
- 2020-12-23 CN CN202011541027.3A patent/CN112755665A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203100021U (en) * | 2012-11-13 | 2013-07-31 | 中国人民解放军军事医学科学院卫生装备研究所 | Efficient air port type biological-safety air filtration device |
| CN106890509A (en) * | 2017-04-24 | 2017-06-27 | 苏州英德尔室内空气技术有限公司 | A kind of air cleaner scanning leak detection device |
| CN207076233U (en) * | 2017-04-24 | 2018-03-09 | 苏州英德尔室内空气技术有限公司 | Air cleaner scanning leak detection device |
| CN211358308U (en) * | 2019-12-17 | 2020-08-28 | 天津昌特净化科技有限公司 | Biological safety efficient air exhaust filtering device |
| CN112097343A (en) * | 2020-09-28 | 2020-12-18 | 军事科学院系统工程研究院卫勤保障技术研究所 | Movable biological safety type air exhaust efficient filtering device |
| CN214201101U (en) * | 2020-12-23 | 2021-09-14 | 重庆海润节能技术股份有限公司 | Biological safe and efficient air port with in-situ leakage detection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629847A (en) * | 2023-12-06 | 2024-03-01 | 广州玖胜净化技术有限公司 | Air filter windage testing platform |
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Application publication date: 20210507 |