CN112808326A - Biological safety cabinet - Google Patents
Biological safety cabinet Download PDFInfo
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- CN112808326A CN112808326A CN202110037423.0A CN202110037423A CN112808326A CN 112808326 A CN112808326 A CN 112808326A CN 202110037423 A CN202110037423 A CN 202110037423A CN 112808326 A CN112808326 A CN 112808326A
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- 238000000746 purification Methods 0.000 claims abstract description 23
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 24
- 238000009827 uniform distribution Methods 0.000 claims description 8
- 230000030279 gene silencing Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 16
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000005686 electrostatic field Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000005202 decontamination Methods 0.000 description 5
- 230000003588 decontaminative effect Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 108010077805 Bacterial Proteins Proteins 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Clinical Laboratory Science (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Toxicology (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
A biological safety cabinet belongs to the field of environmental protection and purification and comprises a cabinet body, pulleys and purification equipment; the purifying equipment is arranged in the cabinet body, and the bottom of the cabinet body is provided with pulleys; the cabinet body is divided into an operation platform, an operation space, a control unit, an equipment unit, an access door, a ventilation window and an illuminating lamp; reserving an operation space on the operation platform; the equipment unit is positioned above the operation space, and the purifying equipment is arranged in the equipment unit; the control unit is arranged at the outer side of the cabinet equipment unit; the access door is arranged on the back of the cabinet body; the ventilation window is installed at the top of the cabinet body. The invention has short disinfection time, low consumption, high safety, pressure resistance and corrosion resistance, and can coexist by man and machine.
Description
Technical Field
The invention belongs to the field of environmental protection and purification, and particularly relates to a biological safety cabinet.
Background
A biosafety cabinet is a defense device that isolates contaminating aerosols, which occur when pathogens are handled, within an operating area for the safety of operators and their surroundings. It can treat polluted air in operation area through special filtering channel to control discharge, and is a safe special equipment for microbe experiment and production. The method is widely applied to relevant industries such as biological laboratories, medical treatment and health, biological pharmacy and the like, and has good effects on improving process conditions and protecting the physical health and environment of operators.
The disinfection and decontamination mode of the traditional biological safety cabinet is a formalin (formaldehyde aqueous solution) fumigation mode, which easily causes pollution and harm to the environment and personnel, and has low safety, the disinfection time is long, toxic residues exist after disinfection, so neutralization is needed to be remained, the whole process at least needs more than 24 hours, the time is long, and the disinfection and decontamination mode is a common decontamination mode with time-consuming and labor-consuming disinfection effects.
A biological safety cabinet with a closed structure for decontamination and disinfection by using hydrogen peroxide is also used for completing decontamination and disinfection circulation of hydrogen peroxide atomized gas; the disinfection mode adopts wet disinfection, and has the defects of long disinfection time, large consumption and the like.
Some biosafety cabinets are filtered by HEPA filters, so that the safety is low.
Disclosure of Invention
In order to solve the problems, the dry biological safety cabinet which has short disinfection time, small consumption, high safety, pressure resistance, corrosion resistance and capability of meeting different biological research and epidemic prevention requirements and can be used together by man and machine is provided.
A biological safety cabinet consists of a cabinet body, pulleys and a purifying device. The purifying equipment is arranged in the cabinet body to work, and the bottom of the cabinet body is provided with a pulley to move. The cabinet body is a vertical box body which is manufactured by processing a stainless steel plate and is divided into an operation platform, an operation space, a control unit, an equipment unit, an access door, a ventilation window and an illuminating lamp.
The operating platform is arranged at the lower part of the cabinet body and is supported by four legs, and is a workbench for operating and placing articles by a person; an operation space is arranged on the operation platform and is a working space for the operation of a human; the equipment unit is arranged at the upper part of the operation space of the cabinet body, and purification equipment is arranged in the equipment unit; the control unit is arranged on the outer surface of the cabinet equipment unit and used for controlling and monitoring the starting operation of the equipment; the access door is arranged at the upper part of the back of the cabinet body and is used for accessing internal equipment; the ventilation window is made of aluminum alloy materials, is installed at the top of the cabinet body and is used for ventilation and preventing sundries from entering.
The control unit is PLC control, and the component is installed at the cabinet internally, and control panel installs in the external side of cabinet, contains air switch, earth leakage protection switch, switching power supply, relay, PLC, J binding post, terminal row, power conversion module, touch-sensitive screen in the component. The touch screen is arranged on the surface of the cabinet body, the purification time and the purification amount are displayed, the ultraviolet lamp can be independently turned on and off, the equipment can be controlled to be turned on and off, and various data can be checked; this clarification plant realizes opening the operation of opening of electrostatic precipitator module, ultraviolet lamp, fan through the on-the-spot PLC switch board, feeds back site data to the server like filter core live time, electrostatic precipitator module live time, sensor state etc. and the touch-sensitive screen is looked over.
The purifying equipment consists of an inlet, a fan, a shading guide plate, a purifying module, an ultraviolet lamp, a filter screen and a silencing block from an outlet to an inlet in sequence. The interval is arranged on a supporting plate of the equipment unit in the cabinet body from bottom to top.
The uniform distribution plate is made of stainless steel, and small holes are uniformly distributed on the uniform distribution plate at intervals, so that air flow is uniformly balanced when entering, and foreign matters in the operation space are prevented from entering the purifying equipment.
The fan is an axial flow fan or a centrifugal fan, so that negative pressure is formed in the operation space, and air flow enters the purifying equipment through the uniform distribution plate. The fan has the characteristics of large air quantity, high pressure, high efficiency, low noise, small vibration, compact structure and attractive appearance.
The shading guide plate is made of stainless steel sheets into uniformly arranged snake-shaped plates. Install on the fan, purification module below both can shelter from ultraviolet light and spill over, can carry out rectification and water conservancy diversion to the high-speed wind that the fan blew off again, even entering upper strata.
The purification module is an electrostatic dust removal module, and the dust collection chamber of the integrated FC400 electronic purification box adopts the electrostatic dust removal principle that electrostatic dust in the air is adsorbed and settled by using electrostatic force according to the principles of opposite attraction and same repulsion of electrostatic charges so as to achieve the purpose of dust removal.
And an electrostatic adsorption device is arranged in the electrostatic dust removal module and consists of a discharge wire and a dust collection plate. The electrostatic adsorption device can generate 4KV-8KV direct-current high-voltage under the action of the high-voltage generator, a strong electrostatic field is formed in the electrostatic adsorption device, gas around a discharge electrode in the electrostatic field is ionized, a large amount of ions are generated in a space of the discharge electrode, bacteria are killed, and high-voltage electrostatic disinfection is completed; and when the air passes through the electrostatic adsorption device, the particulate matters in the air are adsorbed to the dust collection plate after being forced to be charged. The module has high purification efficiency and low power consumption, does not need to be replaced, only needs to be cleaned regularly, and is environment-friendly.
Ultraviolet lamps are a physical means of sterilization. The mycoprotein of the bacteria is photolyzed and denatured by the irradiation of ultraviolet rays, and the amino acids, nucleic acids and enzymes of the bacteria are destroyed and die. The lamp adopts a carried titanium environment-friendly uv light oxygen ultraviolet lamp tube, and the power is different from 4W to 200W. The photocatalysis unit adopts an ultraviolet LED light source with UVA wave band, can not burn human skin, can not generate ozone for selection, and reduces electric energy waste and environmental damage caused by low-efficiency wave band.
The filter screen is active carbon filter screen high efficiency particle filter screen, can get rid of granule such as remaining dust, PM2.5, germ, and the clearance has the absorption, and the adsorption efficiency can high-efficient antibiotic 99%, absorbs the trace ozone that ultraviolet lamp produced simultaneously, avoids environmental pollution and bodily injury.
The silencing block is arranged on the topmost layer, and a silencing form of a fog gun tail noise reduction device CN211578362U is used, so that airflow is allowed to pass, the noise transmission can be effectively prevented and reduced, and the fog gun tail noise reduction device is a reliable noise control tool.
The technical principle of the invention is as follows: personnel work on the operation platform, and the negative pressure that the air that treats in the operation space purified is produced by the fan is inhaled into the equipartition board. Volatile organic compounds and microorganisms in the air are purified through the electrostatic dust removal module through a high-voltage electrostatic field, the particles with the points are collected by the dust collection plate, the passing smaller particles and the passing microorganisms are sterilized through ultraviolet irradiation, and finally, the fourth filtering, absorption and adsorption are carried out through the activated carbon filter screen, and finally, healthy fresh air is discharged through the exhaust port.
Drawings
FIG. 1: a biological safety cabinet elevation;
FIG. 2: a biological safety cabinet side view;
FIG. 3: a back view of the biological safety cabinet;
FIG. 4: a top view of the biological safety cabinet;
FIG. 5: the construction composition schematic diagram of the biological safety cabinet equipment;
in the figure, 1-pulley, 2-operation platform, 3-operation space, 4-control unit, 5-equipment unit, 6-access door, 7-ventilation window, 8-lighting lamp, 51-uniform distribution plate, 52-fan, 53-purification module, 54-ultraviolet lamp, 55-filter screen, 56-silencing block and 57-shading guide plate.
Detailed Description
A biological safety cabinet is 2 meters high, 0.8 meter wide and 1.2 meters long. Consists of a cabinet body, pulleys and purifying equipment. The purifying equipment is arranged in the cabinet body to work, and the bottom of the cabinet body is provided with a pulley to move. The cabinet body is a vertical box body processed and manufactured by a 1.5mm stainless steel plate, and is divided into an operation platform, an operation space, a control unit, an equipment unit, an access door, a ventilation window and a lighting lamp.
The operating platform is 1.1x0.7 meters, and four legs are supported at the lower part of the cabinet body and are used as a working platform for operating and placing articles by people; the operating platform is a working space which is 1.1x0.7x0.6 m and is operated by a human; the equipment unit is arranged at the upper part of the operation space of the cabinet body, and purification equipment is arranged in the equipment unit; the control unit is arranged on the outer surface of the cabinet equipment unit and used for controlling and monitoring the starting operation of the equipment; the access door is a double door, is arranged at the upper part of the back of the cabinet body and is used for accessing internal equipment; the ventilation window is 0.3x1.6 meters, is made of an aluminum alloy grating plate, is arranged at the top of the cabinet body, and is used for ventilation and preventing sundries from entering.
The control unit is PLC control, and the component is installed at the cabinet internally, and control panel installs in the external side of cabinet, contains air switch, earth leakage protection switch, switching power supply, relay, PLC, J binding post, terminal row, power conversion module, touch-sensitive screen in the component. The touch screen is arranged on the surface of the cabinet body, the purification time and the purification amount are displayed, the ultraviolet lamp can be independently turned on and off, the equipment can be controlled to be turned on and off, and various data can be checked; this clarification plant realizes opening the operation of opening of electrostatic precipitator module, ultraviolet lamp, fan through the on-the-spot PLC switch board, feeds back site data to the server like filter core live time, electrostatic precipitator module live time, sensor state etc. and the touch-sensitive screen is looked over.
The purifying equipment consists of an inlet, a fan, a shading guide plate, a purifying module, an ultraviolet lamp, a filter screen and a silencing block from an outlet to an inlet in sequence. The interval is arranged on a supporting plate of the equipment unit in the cabinet body from bottom to top.
The size of the uniform distribution plate is 1100x600mm, 1.5mm stainless steel is used, small holes with the diameter of 3mm are uniformly arranged on the uniform distribution plate at intervals, the aperture ratio is about 20 percent, air flow is uniformly balanced when entering, and foreign matters in the operation space are prevented from entering the purification equipment.
The three fans are FV-RV17U1 axial flow fans and are arranged side by side, the installation size of each fan is 300x300mm, the noise decibel is 39 decibels, the power is 29W, and the air volume is 828; m. and h. So that negative pressure is formed in the operation space, and the air flow enters the purifying equipment through the uniform distribution plate. The fan has the characteristics of large air quantity, high pressure, high efficiency, low noise, small vibration, compact structure and attractive appearance.
The whole size of the shading guide plate is 1000x500x100mm, and a stainless steel thin plate with the thickness of 1.5mm is used for manufacturing a snake-shaped plate which is uniformly arranged. Install on the fan, purification module below both can shelter from ultraviolet light and spill over, can carry out rectification and water conservancy diversion to the high-speed wind that the fan blew off again, even entering upper strata.
The purification module is an electrostatic dust removal module, three groups of dust collection chambers of the integrated FC400 electronic purification box are arranged side by side, the specification is 500x350x100, and the electrostatic dust removal principle is that electrostatic force is utilized to adsorb and settle charged dust in the air according to the principle that the opposite poles of electrostatic charge attract and the same poles repel, so that the purpose of dust removal is achieved.
And an electrostatic adsorption device is arranged in the electrostatic dust removal module and consists of a discharge wire and a dust collection plate. The electrostatic adsorption device can generate 4KV-8KV direct-current high-voltage under the action of the high-voltage generator, a strong electrostatic field is formed in the electrostatic adsorption device, gas around a discharge electrode in the electrostatic field is ionized, a large amount of ions are generated in a space of the discharge electrode, bacteria are killed, and high-voltage electrostatic disinfection is completed; and when the air passes through the electrostatic adsorption device, the particulate matters in the air are adsorbed to the dust collection plate after being forced to be charged. The module has high purification efficiency and low power consumption, does not need to be replaced, only needs to be cleaned regularly, and is environment-friendly.
Ultraviolet lamps are a physical means of sterilization. A row of 15W tubes with length of 436mm and 6 tubes are arranged, and bacterial proteins are photolyzed and denatured by ultraviolet irradiation, so that amino acids, nucleic acids and enzymes of bacterial cells are destroyed and die. The lamp adopts a carried titanium environment-friendly uv light oxygen ultraviolet lamp tube, and the power is different from 4W to 200W. The photocatalysis unit adopts an ultraviolet LED light source with UVA wave band, can not burn human skin, can not generate ozone for selection, and reduces electric energy waste and environmental damage caused by low-efficiency wave band.
The filter screen is active carbon filter screen high efficiency particle filter screen, can get rid of granule such as remaining dust, PM2.5, germ, and the clearance has the absorption, and the adsorption efficiency can high-efficient antibiotic 99%, absorbs the trace ozone that ultraviolet lamp produced simultaneously, avoids environmental pollution and bodily injury.
The silencing block is arranged on the topmost layer, and a silencing form of a fog gun tail noise reduction device CN211578362U is used, so that airflow is allowed to pass, the noise transmission can be effectively prevented and reduced, and the fog gun tail noise reduction device is a reliable noise control tool.
The technical principle of the invention is as follows: personnel work on the operation platform, and the negative pressure that the air that treats in the operation space purified is produced by the fan is inhaled into the equipartition board. Volatile organic compounds and microorganisms in the air are purified through the electrostatic dust removal module through a high-voltage electrostatic field, the particles with the points are collected by the dust collection plate, the passing smaller particles and the passing microorganisms are sterilized through ultraviolet irradiation, and finally, the fourth filtering, absorption and adsorption are carried out through the activated carbon filter screen, and finally, healthy fresh air is discharged through the exhaust port.
Claims (3)
1. A biological safety cabinet is characterized by comprising a cabinet body, pulleys and purifying equipment; the purifying equipment is arranged in the cabinet body, and the bottom of the cabinet body is provided with pulleys; the cabinet body is divided into an operation platform, an operation space, a control unit, an equipment unit, an access door, a ventilation window and an illuminating lamp; the operating platform is positioned at the lower part of the cabinet body and is supported by four legs; reserving an operation space on the operation platform; the equipment unit is positioned above the operation space, and the purifying equipment is arranged in the equipment unit; the control unit is arranged at the outer side of the cabinet body equipment unit and used for controlling and monitoring the starting operation of the equipment; the access door is arranged on the back of the cabinet body and used for accessing internal equipment; the ventilation window is arranged at the top of the cabinet body and used for ventilating and preventing sundries from entering.
2. The biosafety cabinet according to claim 1, wherein the control unit comprises an air switch, a leakage protection switch, a switching power supply, a relay, a PLC, a power supply conversion module and a touch screen, the touch screen displays purification time and purification amount, the ultraviolet lamp can be independently turned on and off, the on and off of the equipment can be controlled, and various data can be checked; the purifying equipment realizes the operation of controlling the start and stop of the electrostatic dust removal module, the ultraviolet lamp and the fan through the PLC control cabinet, and feeds field data such as filter element service time, the service time of the electrostatic dust removal module, the state of a sensor and the like back to the server, and the touch screen checks the data.
3. The biosafety cabinet as claimed in claim 1, wherein the purification equipment comprises a uniform distribution plate, a fan, a shading guide plate, a purification module, an ultraviolet lamp, a filter screen and a silencing block from an inlet to an outlet, and is arranged on a support plate of the equipment unit in the cabinet body from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037423.0A CN112808326A (en) | 2021-01-12 | 2021-01-12 | Biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110037423.0A CN112808326A (en) | 2021-01-12 | 2021-01-12 | Biological safety cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN112808326A true CN112808326A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110037423.0A Withdrawn CN112808326A (en) | 2021-01-12 | 2021-01-12 | Biological safety cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053851A (en) * | 2006-02-09 | 2007-10-17 | 林向前 | Biological safety cabinet |
| CN205797236U (en) * | 2016-06-03 | 2016-12-14 | 江西诚志生物工程有限公司 | A kind of multifunctional bio safety cabinet |
| EP3167960A1 (en) * | 2015-10-13 | 2017-05-17 | Burgin s.r.o. | Biological safety cabinet for the preparation of biological samples, especially faeces, and use of such a cabinet. |
| CN206762898U (en) * | 2017-03-22 | 2017-12-19 | 四川省中安检测有限公司 | A kind of Biohazard Safety Equipment for automatically controlling wind speed |
| CN108246370A (en) * | 2018-03-05 | 2018-07-06 | 湖州翔润化工有限公司 | A kind of new bio safety cabinet |
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| CN111256246A (en) * | 2020-03-23 | 2020-06-09 | 山西尚风科技股份有限公司 | Air purification equipment for oversized space |
| CN111519941A (en) * | 2020-04-08 | 2020-08-11 | 中科慧光科技有限公司 | Negative pressure safety room |
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| CN111256246A (en) * | 2020-03-23 | 2020-06-09 | 山西尚风科技股份有限公司 | Air purification equipment for oversized space |
| CN111519941A (en) * | 2020-04-08 | 2020-08-11 | 中科慧光科技有限公司 | Negative pressure safety room |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
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