CN111773841A - Biological safety cabinet capable of providing digital experimental environment and control method thereof - Google Patents
Biological safety cabinet capable of providing digital experimental environment and control method thereof Download PDFInfo
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- CN111773841A CN111773841A CN202010675911.XA CN202010675911A CN111773841A CN 111773841 A CN111773841 A CN 111773841A CN 202010675911 A CN202010675911 A CN 202010675911A CN 111773841 A CN111773841 A CN 111773841A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 56
- 238000012360 testing method Methods 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 7
- 244000005700 microbiome Species 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012800 visualization 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/04—Dust-free rooms or enclosures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Accommodation For Nursing Or Treatment Tables (AREA)
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Abstract
The invention discloses a biological safety cabinet capable of providing a digital experimental environment and a control method thereof, belonging to the technical field of biological safety cabinets. A biological safety cabinet capable of providing a digital experimental environment comprises: the cabinet body still includes: the air intake filtering mechanism, the exhaust filtering mechanism, the negative pressure air suction mechanism and the touch panel are respectively arranged at one end of the cabinet body, the negative pressure air suction mechanism is arranged in the cabinet body, the extending direction of the negative pressure air suction mechanism points to the exhaust filtering mechanism from the air intake filtering mechanism, and the touch panel is arranged on one side of the exhaust filtering mechanism.
Description
Technical Field
The invention belongs to the technical field of biological safety cabinets, and particularly relates to a biological safety cabinet capable of providing a digital experiment environment and a control method thereof.
Background
When a biological experiment is carried out, the movement, the stirring, the vibration, the collision and the like of a microorganism sample cause the formation of microorganism aerosol, and the naked eyes cannot see the aerosol with the diameter less than five micrometers and the micro liquid drops with the diameter of 5-100 micrometers, so the microorganism aerosol can form personnel infection, the tested material is easy to infect in the experiment or taken from a safety cabinet, the existing biological safety cabinet is blocked by vertical airflow, the microorganism sample is easy to blow away, and the test data is not easy to record.
Disclosure of Invention
The invention aims to solve the problems that the existing biological safety cabinet is easy to blow away a microorganism sample and test data is not easy to record, and provides a biological safety cabinet capable of providing a digital experiment environment and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a biological safety cabinet capable of providing a digital experimental environment comprises: the cabinet body still includes: the air inlet filtering mechanism, the exhaust filtering mechanism, the negative pressure air suction mechanism and the touch panel are respectively arranged at one end of the cabinet body, the negative pressure air suction mechanism is arranged in the cabinet body, the extending direction of the negative pressure air suction mechanism is directed to the exhaust filtering mechanism by the air inlet filtering mechanism, the touch panel is arranged on one side of the exhaust filtering mechanism, the top of the inner cavity of the cabinet body is provided with an illuminating lamp, a temperature and humidity sensor, a temperature and humidity regulator, a data collector, a sensor matched with the data collector and a camera which are electrically connected with the touch panel, and the touch panel is used for controlling the illuminating lamp, the temperature and humidity regulator, the temperature;
the cabinet body comprises an inner cabinet body and an outer cabinet body, the inner cabinet body is horizontally arranged, the outer cabinet body is sleeved outside the inner cabinet body, the inner part of the outer cabinet body is hollow, two ends of the outer cabinet body are provided with openings, an inner cavity of the inner cabinet body is an experimental space, the illuminating lamp, the temperature and humidity sensor, the temperature and humidity regulator and the camera are all arranged at the top of the inner cavity of the inner cabinet body, the armless glove extends to the inner cavity of the inner cabinet body, a circulation gap is formed between the inner cabinet body and the outer cabinet body, the inner cabinet body and the outer cabinet body are connected through the air inlet filtering mechanism and the air outlet filtering mechanism, a first connecting hole communicated with the inner cavity of the inner cabinet body is formed in the side face of the inner cabinet body, a first guide plate is obliquely arranged on one side, close to the air inlet filtering mechanism, of the first guide plate, the distance from the inclined face of the first guide plate to the, the first exhaust assemblies are densely distributed on four sides of the inner cabinet body, a plurality of connecting rods are arranged at one end, close to the exhaust filtering mechanism, of the inner cabinet body, the extending direction of the connecting rods is parallel to the length direction of the inner cabinet body, the suspending ends of the connecting rods are connected with a connecting plate, the size of the connecting plate is matched with the cross section of the inner cabinet body, one side, away from the connecting rods, of the connecting plate is flush with one end, close to the connecting plate, of the outer cabinet body, guide plates which are obliquely arranged are arranged at four edges of one end, close to the connecting rods, of the inner cabinet body, the four guide plates are connected;
the air inlet filtering mechanism comprises an air inlet shell, a guide ring, a fan, a filtering ring, a first filtering plate and a second filtering plate, wherein the air inlet shell is arranged at one end of the outer cabinet body in a matching manner, the air inlet shell is hollow, one end of the air inlet shell close to the outer cabinet body is provided with an opening, the guide shell is arranged at one end of the inner cabinet body close to the air inlet shell in a matching manner, the guide shell is hollow, two ends of the air inlet shell are provided with openings, the center of one end of the air inlet shell, which is far away from the outer cabinet body, is provided with a first via hole, the guide ring is arranged at one side of the inner wall of the air inlet shell, which faces the inner cabinet body, is matched with the first via hole, the fan is arranged in the inner cavity of the guide ring in a matching manner, the filtering ring is arranged between the fan and the inner cabinet body, and, the first filter plate is arranged in a space between the guide ring and the guide shell in a matching manner, the second filter plate is sleeved outside the guide shell, and the second filter plate is matched with the space between the guide shell and the air inlet shell;
the negative pressure air suction mechanism comprises an air inlet cylinder coaxially penetrating through the inside of the filter ring, the air inlet cylinder penetrates through the wall thickness of the inner cabinet body and extends into the inner cabinet body, an accelerating cylinder is coaxially arranged at one end of an inner cavity of the inner cabinet body, the accelerating cylinder is conical, the distance between two opposite inclined planes of the accelerating cylinder is gradually reduced from the direction of the air inlet cylinder to the accelerating cylinder, a guide pipe is coaxially arranged at the suspension end of the accelerating cylinder, the guide pipe extends to one end of the inner cabinet body close to the connecting plate and is communicated with the inner cavity of the outer cabinet body, a second communication hole is formed in the guide pipe and is communicated with the inner cavity of the guide pipe and the inner cavity of the inner cabinet body, a second guide plate which is obliquely arranged is arranged at one side of an air outlet of the second communication hole close to the accelerating cylinder, the distance from the second guide plate to the inner wall of the guide pipe is gradually increased from the direction of the air inlet cylinder, the second exhaust assemblies are densely distributed on the guide pipe;
the exhaust filtering mechanism comprises an exhaust shell which is arranged at one end of the outer cabinet body, which is far away from the air inlet filtering mechanism, and a partition shell which is arranged at one side of the connecting plate, which faces the exhaust shell, in a matching way, the exhaust shell is hollow, one end of the exhaust shell, which is close to the outer cabinet body, is arranged into an opening, the partition shell is positioned in an inner cavity of the exhaust shell, a second through hole is arranged at the center of one end of the exhaust shell, which is far away from the connecting plate, the second through hole is coaxial with the first through hole, an exhaust ring which is coaxial with the second through hole is arranged at one side of the inner wall of the exhaust shell, which faces the connecting plate, the lengths of the exhaust ring and the partition shell are both smaller than the length of the exhaust shell, a suspension end of the exhaust ring extends into the inner cavity of the partition shell, filter plates are arranged in a matching way, the outside cover of cutting apart the shell be equipped with the third filter, the third filter match set up in the exhaust shell and cut apart the clearance between the shell.
Preferably, a guide convex plate is arranged at the center of one side of the connecting plate facing the inner cabinet body, the guide convex plate is conical, and the distance between the two opposite inclined planes of the guide convex plate is gradually reduced from the exhaust filtering mechanism to the intake filtering mechanism.
Preferably, two through holes are formed in one side of the outer cabinet body, and arm-connecting gloves extending to the inner cavity of the inner cabinet body are arranged in the through holes.
Preferably, the top surface of the outer cabinet body is provided with a sealing door, and the top surface of the inner cabinet body is provided with an opening and closing door corresponding to the sealing door.
Preferably, the length of the guide shell and the length of the guide ring are both smaller than that of the air inlet shell, and the suspension end of the guide ring extends into the inner cavity of the guide shell.
Preferably, the material of the filter ring, the first filter plate, the second filter plate, the third filter plate, the fourth filter plate and the filter sheet is activated carbon.
Preferably, the inner cabinet body and the outer cabinet body are made of transparent materials.
Preferably, the touch panel controls the on and off of the fan.
Preferably, the control method of the biological safety cabinet capable of providing the digital experimental environment comprises the following steps:
s1: opening the sealing door and the opening and closing door, placing equipment, tools and the like required by the test into the inner cavity of the inner cabinet body, and then closing the sealing door and the opening and closing door;
s2: the illuminating lamp, the temperature and humidity sensor, the temperature and humidity regulator and the camera are started through the touch panel, the temperature and humidity data are transmitted to the touch panel through the temperature and humidity sensor, and then the temperature and humidity of the inner cavity of the inner cabinet body are regulated to the temperature and humidity required by the test through the temperature and humidity regulator adjusted through the touch panel;
s3: biological test operation is carried out through the arm connecting gloves, collected test data are collected to the data collector through the sensor matched with the data collector, and then the test data are transmitted to the touch panel and displayed by the touch panel;
s4: meanwhile, the touch panel controls the fan to be started, the fan blows airflow towards the direction of the air inlet cylinder, outside air enters the circulation gap through the filter ring, the first filter plate and the second filter plate at a high speed, the air pressure in the circulation gap is reduced at the moment, the air in the inner cavity of the inner cabinet body is pushed by the air pressure difference to carry the air polluted by the test, enters the circulation gap through the first connecting hole and moves towards the direction of the exhaust shell under the guidance of the first guide plate, and the air with the pollution is exhausted to the outside through the exhaust ring after being filtered by the third filter plate, the fourth filter plate and the filter plates;
s5: meanwhile, the fan blows air towards the inner cavity of the air inlet cylinder, the cross section of the accelerating cylinder is gradually reduced after the air flow passes through the accelerating cylinder, when the air flow is unchanged, the flow area is reduced, the air flow flowing speed is increased, the accelerated air flow enters the inner cavity of the guide pipe, the air pressure of the inner cavity of the guide pipe is reduced, the air polluted by the test in the inner cavity of the inner cabinet body enters the inner cavity of the guide pipe through the second communication hole under the action of air pressure difference, the air flow then impacts on the guide convex plate and passes through the third filter plate, the fourth filter plate and the filter plate under the guide of the guide convex plate and the guide plate.
Compared with the prior art, the invention provides the biosafety cabinet capable of providing the digital experimental environment and the control method thereof, and the biosafety cabinet has the following beneficial effects:
1. the invention can further reduce the pollution of the outside air to the test equipment through multiple filtration, can also avoid the leakage of microorganisms diffused by the test and reduce the safety risk.
2. The negative pressure suction device sucks polluted air in the inner cabinet body through negative pressure, so that the straight airflow of a test device is avoided, the risk that a test biological material is blown away by the airflow is reduced, the extraction efficiency of the polluted air in the inner cabinet body is improved through double negative pressure suction, the test visualization is realized through digitization, and the test effect is more visualized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
fig. 4 is a cross-sectional view of the present invention.
The reference numbers in the figures illustrate:
10. a cabinet body; 110. an inner cabinet body; 120. an outer cabinet body; 121. a through hole; 122. a sealing door; 130. a flow-through gap; 140. a first communication hole; 150. a first guide plate; 160. a guide plate; 170. a connecting rod; 180. a connecting plate; 190. a guide projection plate; 20. an intake air filtering mechanism; 210. an air inlet housing; 220. a guide housing; 230. a guide ring; 240. a fan; 250. a filter ring; 260. a first filter plate; 270. a second filter plate; 30. an exhaust gas filtering mechanism; 310. an exhaust shell; 320. cutting the shell; 330. an exhaust ring; 340. a third filter plate; 350. a fourth filter plate; 360. a filter disc; 40. a negative pressure suction mechanism; 410. an air inlet cylinder; 420. an acceleration cylinder; 430. a guide tube; 440. a second communication hole; 450. a second guide plate; 50. a touch panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a biosafety cabinet capable of providing a digital experimental environment comprises: the cabinet 10 further includes: the air inlet filtering mechanism 20, the exhaust filtering mechanism 30 of the cabinet body 10 one end are arranged in respectively, the negative pressure air suction mechanism 40 which is arranged in the cabinet body 10 and extends towards the exhaust filtering mechanism 30 and is formed by the air inlet filtering mechanism 20 and the touch panel 50 arranged on one side of the exhaust filtering mechanism 30 is arranged in the cabinet body 10, the top of the inner cavity of the cabinet body 10 is provided with a lighting lamp, a temperature and humidity sensor, a temperature and humidity regulator, a data acquisition device, a sensor and a camera which are matched with the data acquisition device, wherein the lighting lamp, the temperature and humidity regulator, the temperature and humidity sensor, the data acquisition device, the sensor and the camera which are matched with the data acquisition device are electrically.
The cabinet body 10 comprises an inner cabinet body 110 and an outer cabinet body 120, wherein the inner cabinet body 110 is horizontally arranged, the outer cabinet body 120 is sleeved outside the inner cabinet body 110, the inner part of the outer cabinet body 120 is hollow, two ends of the outer cabinet body 120 are provided with openings, the inner cavity of the inner cabinet body 110 is an experimental space, the illuminating lamp, the temperature and humidity sensor, the temperature and humidity regulator and the camera are all arranged at the top of the inner cavity of the inner cabinet body 110, the armless glove extends to the inner cavity of the inner cabinet body 110, a circulation gap is formed between the inner cabinet body 110 and the outer cabinet body 120, the inner cabinet body 110 and the outer cabinet body 120 are connected through an air inlet filtering mechanism 20 and an exhaust filtering mechanism 30, a first guide plate 150 is obliquely arranged on one side of the air outlet of the first guide plate 140 close to the air inlet filtering mechanism 20, the distance from the inclined plane of the first guide plate 150 to the inner cabinet body 110 is gradually increased along, first guide plate 150 and first through-hole 140 constitute first exhaust subassembly, first exhaust subassembly densely covered in internal cabinet body 110 four sides, internal cabinet body 110 one end that closes on exhaust filter mechanism 30 be provided with a plurality of connecting rods 170, the parallel internal cabinet body 110 length direction of connecting rod 170 extending direction, connecting rod 170 suspension end is connected with same connecting plate 180, connecting plate 180 size matches with internal cabinet body 110 cross section, connecting plate 180 deviate from one side of connecting rod 170 and flush with the one end that external cabinet body 120 closes on connecting plate 180, internal cabinet body 110 close to four edges of one end of connecting rod 170 and be provided with deflector 160 that the slope was arranged, four deflectors 160 fuse into an organic whole and deflector 160 stretches into the gap between connecting plate 180 and the external cabinet body 120.
More perfectly, in order to avoid the airflow from rebounding and flowing back, a guiding convex plate 190 is arranged at the center of one side of the connecting plate 180 facing the inner cabinet body 110, the guiding convex plate 190 is conical, and the distance between two opposite inclined planes of the guiding convex plate 190 is gradually reduced from the direction of the exhaust filtering mechanism 30 to the direction of the intake filtering mechanism 20; the air flow enters the exhaust filter mechanism 30 under the guidance of the guide convex plate 190 and the guide plate 160, and the situation that the air flow rebounds and flows back is avoided.
More perfectly, two through holes 121 are formed in one side of the outer cabinet body 120, and arm-connecting gloves extending to the inner cavity of the inner cabinet body 110 are arranged in the through holes 121.
More perfectly, a sealing door 122 is arranged on the top surface of the outer cabinet body 120, and an opening and closing door corresponding to the sealing door 122 is arranged on the top surface of the inner cabinet body 110; the experimental materials and the experimental apparatus can be conveniently placed in the inner cavity of the inner cabinet body 110.
The intake filter mechanism 20 includes an intake shell 210, a guiding shell 220, a guiding ring 230, a fan 240, a filter ring 250, a first filter plate 260, and a second filter plate 270, the intake shell 210 is disposed at one end of the outer cabinet 120 in a matching manner, one end of the intake shell 210 close to the outer cabinet 120 is disposed as an opening, the guiding shell 220 is disposed at one end of the inner cabinet 110 close to the intake shell 210 in a matching manner, the guiding shell 220 is hollow and has two ends disposed as openings, a first through hole is disposed at a center of one end of the intake shell 210 away from the outer cabinet 120, the guiding ring 230 is disposed at one side of the inner wall of the intake shell 210 facing the inner cabinet 110, the guide ring 230 is matched with the first through hole, the fan 240 is disposed in an inner cavity of the guiding ring 230 in a matching manner, the filter ring 250 is disposed in an inner cavity of the guiding ring 230, and the filter ring 250 is disposed between the fan 240 and the inner cabinet 110, the first filter plate 260 is coaxially sleeved at the suspension end of the guide ring 230, the first filter plate 260 is matched with the space between the guide ring 230 and the guide shell 220, and the second filter plate 270 is sleeved outside the guide shell 220 and the second filter plate 270 is matched with the space between the guide shell 220 and the air inlet shell 210.
The negative pressure air suction mechanism 40 comprises an air inlet cylinder 410 coaxially penetrating through the filter ring 250, the air inlet cylinder 410 penetrates through the wall thickness of the inner cabinet body 110 and extends into the inner cabinet body 110, one end of the air inlet cylinder 410, which is positioned in the inner cavity of the inner cabinet body 110, is coaxially provided with an acceleration cylinder 420, the acceleration cylinder 420 is conical, the distance between two opposite inclined planes of the acceleration cylinder 420 is gradually reduced from the direction from the air inlet cylinder 410 to the acceleration cylinder 420, the suspension end of the acceleration cylinder 420 is coaxially provided with a guide pipe 430, the guide pipe 430 extends to one end of the inner cabinet body 110, which is close to the connecting plate 180, and the guide pipe 430 is communicated with the inner cavity of the outer cabinet body 120, the guide pipe 430 is provided with a second communication hole 440, the second communication hole 440 is communicated with the inner cavity of the guide pipe 430 and the inner cavity of the inner cabinet body 110, one side of the air outlet acceleration cylinder 420 of the second communication hole 440 is provided with a second guide plate 450, the second communication hole 440 and the second guide plate 450 constitute a second exhaust assembly densely arranged on the guide pipe 430.
The exhaust filter mechanism 30 comprises an exhaust shell 310 arranged at one end of the outer cabinet body 120 departing from the intake filter mechanism 20 in a matching manner, and a partition shell 320 arranged at one side of the connection plate 180 facing the exhaust shell 310 in a matching manner, the exhaust shell 310 is hollow, an opening is arranged at one end of the exhaust shell 310 close to the outer cabinet body 120, the partition shell 320 is positioned in an inner cavity of the exhaust shell 310, a second through hole is arranged at the center of one end of the exhaust shell 310 departing from the connection plate 180, the second through hole is coaxial with the first through hole, an exhaust ring 330 coaxial with the second through hole is arranged at one side of the inner wall of the exhaust shell 310 facing the connection plate 180, the lengths of the exhaust ring 330 and the partition shell 320 are both smaller than that of the exhaust shell 310, the suspension end of the exhaust ring 330 extends into the inner cavity of the partition shell 320, the inner cavity of the exhaust ring 330 is provided with a filter sheet 360 in a, the fourth filter plate 350 is matched with the gap between the division case 320 and the exhaust ring 330, the third filter plate 340 is sleeved outside the division case 320, and the third filter plate 340 is matched with the gap between the exhaust case 310 and the division case 320.
The length of the guide shell 220 and the guide ring 230 is less than that of the air inlet shell 210, and the suspended end of the guide ring 230 extends into the inner cavity of the guide shell 220.
The filter ring 250, the first filter plate 260, the second filter plate 270, the third filter plate 340, the fourth filter plate 350 and the filter sheet 360 are all made of activated carbon.
The inner cabinet body 110 and the outer cabinet body 120 are made of transparent materials.
The touch panel 50 controls the on/off of the fan 240.
A control method of a biological safety cabinet capable of providing a digital experimental environment is applied to the biological safety cabinet capable of providing the digital experimental environment, and the steps comprise:
s1: opening the sealing door 122 and the opening and closing door, placing equipment, tools and the like required by the test into the inner cavity of the inner cabinet body 110, and then closing the sealing door 122 and the opening and closing door;
s2: the illuminating lamp, the temperature and humidity sensor, the temperature and humidity regulator and the camera are started through the touch panel 50, the temperature and humidity data are transmitted to the touch panel 50 through the temperature and humidity sensor, and then the temperature and humidity of the inner cavity of the inner cabinet body 110 are regulated to the temperature and humidity required by the test through the temperature and humidity regulator adjusted through the touch panel 50;
s3: biological test operation is carried out through the arm-connecting gloves, collected test data are collected to the data collector through the sensor matched with the data collector, and then the test data are transmitted to the touch panel 50 and displayed by the touch panel 50;
s4: meanwhile, the touch panel 50 controls the fan 240 to start, the fan 240 blows airflow towards the direction of the air inlet cylinder 410, outside air enters the circulation gap 130 through the filter ring 250, the first filter plate 260 and the second filter plate 270 at high speed, at the moment, the air pressure in the circulation gap 130 is reduced, the air in the inner cavity of the inner cabinet body 110 is pushed by the air pressure difference to carry the air polluted by the test to enter the circulation gap 130 through the first connecting hole 140 and move towards the direction of the exhaust shell 310 under the guidance of the first guide plate 150, and the air with pollution is filtered by the third filter plate 340, the fourth filter plate 350 and the filter plate 360 and then is exhausted to the outside through the exhaust ring 330;
s5: meanwhile, the blower 240 blows air towards the inner cavity of the air inlet cylinder 410, the air flow passes through the accelerating cylinder 420, the cross section of the accelerating cylinder 420 is gradually reduced, when the air flow is unchanged, the flow area is reduced, the air flow speed is increased, the accelerated air flow enters the inner cavity of the guide pipe 430, the air pressure in the inner cavity of the guide pipe 430 is reduced, the air polluted by the test in the inner cavity of the inner cabinet body 110 enters the inner cavity of the guide pipe 430 through the second communication hole 440 under the action of the air pressure difference, and the air flow then impinges on the guide convex plate 190 and passes through the third filter plate 340, the fourth filter plate 350 and the filter plate 360 under the guide of the guide convex plate 190 and the guide plate 160.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A biological safety cabinet capable of providing a digital experimental environment comprises: cabinet (10), its characterized in that still includes: the air-conditioning cabinet comprises an air inlet filtering mechanism (20), an exhaust filtering mechanism (30), a negative pressure air suction mechanism (40) and a touch panel (50), wherein the air inlet filtering mechanism (20) and the exhaust filtering mechanism (30) are respectively arranged at one end of a cabinet body (10), the negative pressure air suction mechanism (40) is arranged in the cabinet body (10), the extension direction of the negative pressure air suction mechanism is directed to the exhaust filtering mechanism (30) through the air inlet filtering mechanism (20), the touch panel (50) is arranged on one side of the exhaust filtering mechanism (30), an illuminating lamp, a temperature and humidity sensor, a temperature and humidity regulator, a data collector, a sensor matched with the data collector and a camera are arranged at the top of an inner cavity of the cabinet body (10), and the touch panel (50);
the cabinet body (10) comprises an inner cabinet body (110) arranged horizontally and an outer cabinet body (120) sleeved outside the inner cabinet body (110), the inner part of the outer cabinet body (120) is hollow, two ends of the inner cabinet body (110) are provided with openings, the inner cavity of the inner cabinet body (110) is an experimental space, a lighting lamp, a temperature and humidity sensor, a temperature and humidity regulator and a camera are all arranged at the top of the inner cavity of the inner cabinet body (110), a connecting arm glove extends to the inner cavity of the inner cabinet body (110), a circulation gap is formed between the inner cabinet body (110) and the outer cabinet body (120), the inner cabinet body (110) and the outer cabinet body (120) are connected through an air inlet filtering mechanism (20) and an exhaust filtering mechanism (30), a first connecting hole (140) communicated with the inner cavity of the inner cabinet body (110) is formed in the side surface of the inner cabinet body (110), a first guide plate (150) which is obliquely arranged is arranged on one side, the distance from the inclined plane of the first guide plate (150) to the inner cabinet body (110) is gradually increased along the direction of the air inlet filtering mechanism (20) pointing to the exhaust filtering mechanism (30), the first guide plate (150) and the first connecting hole (140) form a first exhaust assembly, the first exhaust assembly is densely distributed on the four sides of the inner cabinet body (110), one end of the inner cabinet body (110) close to the exhaust filtering mechanism (30) is provided with a plurality of connecting rods (170), the extending direction of the connecting rods (170) is parallel to the length direction of the inner cabinet body (110), the suspension end of each connecting rod (170) is connected with the same connecting plate (180), the size of each connecting plate (180) is matched with the cross section of the inner cabinet body (110), one side of each connecting plate (180) departing from the corresponding connecting rod (170) is flush with one end of the outer cabinet body (120) close to the corresponding connecting plate (180), and four edges of one end, close to the connecting rod (170), the four guide plates (160) are connected into a whole, and the guide plates (160) extend into a gap between the connecting plate (180) and the outer cabinet body (120);
the air inlet filtering mechanism (20) comprises an air inlet shell (210), a guide shell (220), a guide ring (230), a fan (240), a filtering ring (250), a first filtering plate (260) and a second filtering plate (270), wherein the air inlet shell (210) is arranged at one end of the outer cabinet body (120) in a matching manner, the air inlet shell (210) is hollow, one end of the air inlet shell (210) close to the outer cabinet body (120) is provided with an opening, the guide shell (220) is arranged at one end of the inner cabinet body (110) close to the air inlet shell (210) in a matching manner, the guide shell (220) is hollow, two ends of the guide shell (220) are provided with openings, a first through hole is formed in the center of one end of the air inlet shell (210) departing from the outer cabinet body (120), the guide ring (230) is arranged on one side of the inner wall of the air inlet shell (210) facing the inner cabinet body (110), and the guide ring (, the fan (240) is arranged in the inner cavity of the guide ring (230) in a matching manner, the filter ring (250) is arranged between the fan (240) and the inner cabinet body (110), the first filter plate (260) is coaxially sleeved at the suspension end of the guide ring (230), the first filter plate (260) is arranged in the space between the guide ring (230) and the guide shell (220) in a matching manner, the second filter plate (270) is sleeved outside the guide shell (220) and the second filter plate (270) is matched with the space between the guide shell (220) and the air inlet shell (210);
the negative pressure air suction mechanism (40) comprises an air inlet cylinder (410) coaxially arranged in the filter ring (250) in a penetrating mode, the air inlet cylinder (410) penetrates through the wall thickness of the inner cabinet body (110) and extends into the inner cabinet body (110), one end, located in the inner cavity of the inner cabinet body (110), of the air inlet cylinder (410) is coaxially provided with an accelerating cylinder (420), the accelerating cylinder (420) is conical, the distance between two opposite inclined planes of the accelerating cylinder (420) is gradually reduced from the direction of the air inlet cylinder (410) to the direction of the accelerating cylinder (420), the suspension end of the accelerating cylinder (420) is coaxially provided with a guide pipe (430), the guide pipe (430) extends to one end, close to the connecting plate (180), of the inner cabinet body (110), the guide pipe (430) is communicated with the inner cavity of the outer cabinet body (120), a second communication hole (440) is formed in the guide pipe (430), and the second communication hole (440) is communicated with the, a second guide plate (450) which is obliquely arranged is arranged on one side of the air outlet of the second communication hole (440) close to the accelerating cylinder (420), the distance between the second guide plate (450) and the inner wall of the guide pipe (430) is gradually increased from the direction of the air inlet cylinder (410) to the accelerating cylinder (420), the second communication hole (440) and the second guide plate (450) form a second exhaust assembly, and the second exhaust assembly is densely distributed on the guide pipe (430);
the exhaust filtering mechanism (30) comprises an exhaust shell (310) which is arranged at one end of the outer cabinet body (120) departing from the air inlet filtering mechanism (20) in a matching way, and a partition shell (320) which is arranged at one side of the connecting plate (180) facing the exhaust shell (310) in a matching way, wherein the exhaust shell (310) is hollow, one end of the exhaust shell (310) close to the outer cabinet body (120) is provided with an opening, the partition shell (320) is positioned in the inner cavity of the exhaust shell (310), the center of one end of the exhaust shell (310) departing from the connecting plate (180) is provided with a second through hole, the second through hole is coaxial with the first through hole, one side of the inner wall of the exhaust shell (310) facing the connecting plate (180) is provided with an exhaust ring (330) which is coaxial with the second through hole, the lengths of the exhaust ring (330) and the partition shell (320) are both smaller than the length of the exhaust shell (310), and the suspended end of, exhaust ring (330) inner chamber match and be provided with filter (360), the outside coaxial cover of exhaust ring (330) be equipped with fourth filter (350), fourth filter (350) with cut apart the clearance matching between shell (320) and exhaust ring (330), the outside cover of cutting apart shell (320) be equipped with third filter (340), third filter (340) match and set up in exhaust shell (310) and cut apart the clearance between shell (320).
2. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the connecting plate (180) is provided with a guide convex plate (190) towards the center of one side of the inner cabinet body (110), the guide convex plate (190) is conical, and the distance between the two opposite inclined planes of the guide convex plate (190) is gradually reduced from the exhaust filtering mechanism (30) to the direction of the intake filtering mechanism (20).
3. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: two through holes (121) are formed in one side of the outer cabinet body (120), and arm-connecting gloves extending to the inner cavity of the inner cabinet body (110) are arranged in the through holes (121).
4. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the top surface of the outer cabinet body (120) is provided with a sealing door (122), and the top surface of the inner cabinet body (110) is provided with a starting and closing door corresponding to the sealing door (122).
5. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the length of the guide shell (220) and the length of the guide ring (230) are both smaller than that of the air inlet shell (210), and the suspension end of the guide ring (230) extends into the inner cavity of the guide shell (220).
6. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the material of the filter ring (250), the first filter plate (260), the second filter plate (270), the third filter plate (340), the fourth filter plate (350) and the filter sheet (360) is activated carbon.
7. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the inner cabinet body (110) and the outer cabinet body (120) are made of transparent materials.
8. The biosafety cabinet capable of providing a digital experimental environment according to claim 1, wherein: the touch panel (50) controls the on-off of the fan (240).
9. The biosafety cabinet capable of providing a digital experimental environment according to claims 2, 3 and 4, is characterized in that: the control method of the biological safety cabinet capable of providing the digital experimental environment comprises the following steps:
s1: opening the sealing door (122) and the opening and closing door, putting equipment, tools and the like required by the test into the inner cavity of the inner cabinet body (110), and then closing the sealing door (122) and the opening and closing door;
s2: the illuminating lamp, the temperature and humidity sensor, the temperature and humidity regulator and the camera are started through the touch panel (50), the temperature and humidity data are transmitted to the touch panel (50) through the temperature and humidity sensor, and then the temperature and humidity regulator is regulated through the touch panel (50), so that the temperature and humidity of the inner cavity of the inner cabinet body (110) are regulated to the temperature and humidity required by a test;
s3: biological test operation is carried out through the arm-connecting gloves, collected test data are collected to the data collector through the sensor matched with the data collector, and then the test data are transmitted to the touch panel (50) and displayed by the touch panel (50);
s4: meanwhile, the touch panel (50) controls the fan (240) to be started, the fan (240) blows airflow towards the direction of the air inlet cylinder (410), outside air enters the circulation gap (130) through the filter ring (250), the first filter plate (260) and the second filter plate (270) at a high speed, the air pressure in the circulation gap (130) is reduced at the moment, the air in the inner cavity of the inner cabinet body (110) is pushed by the air pressure difference to carry the air polluted by the test to enter the circulation gap (130) through the first communication hole (140) and move towards the direction of the exhaust shell (310) under the guidance of the first guide plate (150), and the air with the pollution is filtered by the third filter plate (340), the fourth filter plate (350) and the filter sheet (360) and then is exhausted to the outside through the exhaust ring (330);
s5: meanwhile, the fan (240) blows air towards the inner cavity of the air inlet cylinder (410), the air flow passes through the accelerating cylinder (420), the cross section of the accelerating cylinder (420) is gradually reduced, when the air flow is unchanged, the flow area is reduced, the flow speed of the air flow is increased, the accelerated air flow enters the inner cavity of the guide pipe (430), the air pressure of the inner cavity of the guide pipe (430) is reduced, the air polluted by the test in the inner cavity of the inner cabinet body (110) enters the inner cavity of the guide pipe (430) through the second communication hole (440) under the action of air pressure difference, the air flow then impinges on the guide convex plate (190) and passes through the third filter plate (340), the fourth filter plate (350) and the filter plate (360) under the guide of the guide convex plate (190) and the guide plate (160) to be.
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| CN111773841B (en) | 2022-01-11 |
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