CN112403534A - Double-fan air supplement system of double-person full-row biological safety cabinet - Google Patents
Double-fan air supplement system of double-person full-row biological safety cabinet Download PDFInfo
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- CN112403534A CN112403534A CN202011045583.1A CN202011045583A CN112403534A CN 112403534 A CN112403534 A CN 112403534A CN 202011045583 A CN202011045583 A CN 202011045583A CN 112403534 A CN112403534 A CN 112403534A
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- Prior art keywords
- pipeline
- double
- fan
- biological safety
- safety cabinet
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- 239000013589 supplement Substances 0.000 title description 14
- 230000001502 supplementing effect Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 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
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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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/003—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by throttling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention provides a double-person full-row biological safety cabinet double-fan air supplementing system, and relates to the technical field of air supplementing of biological safety cabinets. The double-fan air supplementing system of the double-person full-row biological safety cabinet comprises an air inlet device, an area room and a biological safety cabinet body, wherein the air inlet device is fixedly connected with a first pipeline and a second pipeline, and the first pipeline is provided with a first primary filterAnd the second pipeline is provided with a second primary filter, and one end of the second pipeline, which is far away from the air inlet device, is communicated with a first fan unit. The invention, in terms of temperature, only needs to give 1500m3The/h air supply fan can be used for cold and heat pretreatment, so that the cold and heat quantity for supply are reduced, and the temperature fluctuation in the room in the region is reduced; in the aspect of constant pressure difference, firstly, when the biological safety cabinet is not opened, the pressure difference in the PCR chamber is adjusted to a certain value, and when the biological safety cabinet is opened, only 1000m in the chamber is extracted3The differential pressure fluctuation is small and can be adjusted more quickly than in the previous solutions.
Description
Technical Field
The invention relates to the technical field of air supplement of a biological safety cabinet, in particular to a double-fan air supplement system of a double-person full-row biological safety cabinet.
Background
The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens.
At present, the actual air exhaust volume of the double-person full-exhaust biological safety cabinet is 1000m larger than that described on a manufacturer nameplate3H, original scheme is to supplement 2600m3The cold and heat loads in the room are greatly influenced, and in order to offset the conditions of summer overheating, winter supercooling and the like caused by fresh air supplement, an air conditioner needs to be addedAnd electrical heating, the cost is increased greatly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides a double-fan air supplement system of a double-person full-row biological safety cabinet, which solves the defects in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a double-person full-row biosafety cabinet double-fan air supplement system, includes air inlet device, regional room and biosafety cabinet body, first pipeline of air inlet device fixedly connected with and second pipeline, first pipeline is provided with first just imitate filter and high efficiency filter, the second pipeline is provided with the first filter of imitating of second, the one end switch-on that air inlet device was kept away from to the second pipeline has first fan unit, one side switch-on that second pipeline was kept away from to first fan unit has the third pipeline, this body coupling of third pipeline and biosafety cabinet, the one end switch-on that air inlet device was kept away from to first pipeline has second fan unit, one side switch-on that first pipeline was kept away from to second fan unit has the fourth pipeline, the one end that second fan unit was kept away from to the fourth pipeline is put through with regional room.
Preferably, an electric preheating device is arranged between the second fan unit and the fourth pipeline, a temperature controller is fixedly mounted on the fourth pipeline, the temperature controller is electrically connected with the electric preheating device through a wire, and the working power of the electric preheating device is 9 kw.
Preferably, the third pipeline and the fourth pipeline are both provided with an adjusting air valve.
Preferably, a fresh air supplementing opening is formed in the top of the biological safety cabinet body, and the third pipeline is communicated with the biological safety cabinet body through the fresh air supplementing opening.
Preferably, the air volume of the first fan unit is 1900m3And h, the size of the first fan unit is 590mm by 432mm by 382 mm.
Preferably, the air volume of the second fan unit is 1500m3And h, the size of the second fan unit is 520mm 462mm 325 mm.
The working principle is as follows: adopts double fans to supplement air, and the air quantity of the first fan set is 1900m3And h, directly supplementing the filtered fresh air into a fresh air supplementing opening of the biological safety cabinet body after the filtered fresh air is additionally provided with a second primary filter, directly exhausting the cold and heat of the fresh air to the outside without considering the cold and heat of the fresh air, wherein the air volume of the second fan unit is 1500m3The temperature of fresh air can be adjusted through the temperature controller and the electric preheating device, and 1900m is actually measured3The actual air volume of the filtered air volume of the blower is 1500m3/h, indoor 1500m3The wind volume of the/h air supplement fan only needs 1000m3And h, can be realized by adjusting the adjustment of the air valve.
(III) advantageous effects
The invention provides a double-fan air supplement system of a double-person full-row biological safety cabinet. The method has the following beneficial effects:
1. the invention, in terms of temperature, only needs to give 1500m3The/h air supply fan can be used for cold and heat pretreatment, so that the cold and heat quantity for supply are reduced, and the temperature fluctuation in the room in the region is reduced.
2. In the aspect of constant pressure difference, firstly, when the biological safety cabinet is not opened, the pressure difference in the PCR chamber is adjusted to a certain value, and when the biological safety cabinet is opened, only 1000m in the chamber is extracted3The differential pressure fluctuation is small and can be adjusted more quickly than in the previous solutions.
3. In the aspect of noise, the first selected double fans have small air quantity and small noise, and the noise is smaller than that of the original 2600m3The noise of the/h is low, and more comfortable experience can be brought to laboratory workers.
4. In the aspect of unit size, the first selected double-fan air volume is small, the unit size is small, and the unit size is smaller than that of the original 2600m3The size of the/h unit is smaller, and the installation under the complex environment of a laboratory can be better met.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Wherein, 1, an air intake device; 2. a regional room; 3. a biological safety cabinet body; 4. a first conduit; 5. a first conduit; 6. a first primary filter; 7. a high efficiency filter; 8. a second primary filter; 9. a first fan unit; 10. a third pipeline; 11. a fresh air supplementing opening; 12. a second fan unit; 13. an electrical preheating device; 14. a fourth conduit; 15. a temperature controller; 16. and adjusting the air valve.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides a double-fan air supplement system for a double-person full-row biosafety cabinet, which includes an air intake device 1, regional room 2 and biological safety cabinet body 3, first pipeline 4 of 1 fixedly connected with of air inlet unit and second pipeline 5, first pipeline 4 is provided with first primary filter 6 and high efficiency filter 7, second pipeline 5 is provided with the first primary filter 8 of second, the one end switch-on that air inlet unit 1 was kept away from to second pipeline 5 has first fan unit 9, the one side switch-on that second pipeline 5 was kept away from to first fan unit 9 has third pipeline 10, third pipeline 10 is connected with biological safety cabinet body 3, the one end switch-on that air inlet unit 1 was kept away from to first pipeline 4 has second fan unit 12, the one side switch-on that first pipeline 4 was kept away from to second fan unit 12 has fourth pipeline 14, the one end that second fan unit 12 was kept away from to fourth pipeline 14 is put through with regional room 2.
According to the invention, double fans are adopted for air supplement, and the air quantity of the first fan set 9 is 1900m3The fresh air is directly supplemented into a fresh air supplementing opening 11 of the biological safety cabinet body 3 after being filtered by additionally arranging a second primary filter 8, and at the moment, the fresh air is supplementedThe cold and the heat are directly discharged outdoors without consideration, and the air quantity of the second fan set 12 is 1500m3The fresh air is sent into the regional room 2 after being filtered by additionally arranging the first primary filter 6 and the high-efficiency filter 7, only the fresh air of the part needs to be subjected to cold and heat treatment, the temperature of the fresh air can be adjusted through the arranged temperature controller 15 and the electric preheating device 13, and 1900m can be measured through actual measurement3The actual air volume of the filtered air volume of the blower is 1500m3/h, indoor 1500m3The wind volume of the/h air supplement fan only needs 1000m3And/h, can be achieved by adjusting the adjustment of the damper 16.
An electric preheating device 13 is arranged between the second fan unit 12 and the fourth pipeline 14, a temperature controller 15 is fixedly mounted on the fourth pipeline 14, the temperature controller 15 is electrically connected with the electric preheating device 13 through a conducting wire, the working power of the electric preheating device 13 is 9kw, an adjusting air valve 16 is arranged on each of the third pipeline 10 and the fourth pipeline 14, a fresh air supplementing opening 11 is formed in the top of the biosafety cabinet body 3, the third pipeline 10 is communicated with the biosafety cabinet body 3 through the fresh air supplementing opening 11, and the air volume of the first fan unit 9 is 1900m3The size of the first fan set 9 is 590mm, 432mm, 382mm, and the air volume of the second fan set 12 is 1500m3And/h, the size of the second fan unit 12 is 520mm 462mm 325 mm.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a double-person arranges biohazard safety equipment double fan system of mending wind entirely, includes hot blast blowpipe apparatus (1), regional room (2) and biohazard safety equipment body (3), its characterized in that: the air inlet device (1) is fixedly connected with a first pipeline (4) and a second pipeline (5), the first pipeline (4) is provided with a first primary filter (6) and a high-efficiency filter (7), the second pipeline (5) is provided with a second primary filter (8), one end of the second pipeline (5) far away from the air inlet device (1) is communicated with a first fan unit (9), a third pipeline (10) is communicated with one side of the first fan unit (9) far away from the second pipeline (5), the third pipeline (10) is connected with the biological safety cabinet body (3), one end of the first pipeline (4) far away from the air inlet device (1) is communicated with a second fan set (12), a fourth pipeline (14) is communicated with one side of the second fan unit (12) far away from the first pipeline (4), one end, far away from the second fan unit (12), of the fourth pipeline (14) is communicated with the regional room (2).
2. The double-person full-row biological safety cabinet double-fan air supplementing system according to claim 1, characterized in that: an electric preheating device (13) is arranged between the second fan unit (12) and the fourth pipeline (14), a temperature controller (15) is fixedly mounted on the fourth pipeline (14), the temperature controller (15) is electrically connected with the electric preheating device (13) through a lead, and the working power of the electric preheating device (13) is 9 kw.
3. The double-person full-row biological safety cabinet double-fan air supplementing system according to claim 1, characterized in that: and the third pipeline (10) and the fourth pipeline (14) are both provided with an adjusting air valve (16).
4. The double-person full-row biological safety cabinet double-fan air supplementing system according to claim 1, characterized in that: fresh air supply openings (11) are formed in the top of the biological safety cabinet body (3), and the third pipeline (10) is communicated with the biological safety cabinet body (3) through the fresh air supply openings (11).
5. The double-person full-row biological safety cabinet double-fan air supplementing system according to claim 1, characterized in that: the air volume of the first fan unit (9) is 1900m3-h, the first fan set (9) has dimensions 590mm 432mm 382 mm.
6. The double-person full-row biological safety cabinet double-fan air supplementing system according to claim 1, characterized in that: the air volume of the second fan set (12) is 1500m3-h, the second fan set (12) size is 520mm 462mm 325 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045583.1A CN112403534A (en) | 2020-09-28 | 2020-09-28 | Double-fan air supplement system of double-person full-row biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045583.1A CN112403534A (en) | 2020-09-28 | 2020-09-28 | Double-fan air supplement system of double-person full-row biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112403534A true CN112403534A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011045583.1A Pending CN112403534A (en) | 2020-09-28 | 2020-09-28 | Double-fan air supplement system of double-person full-row biological safety cabinet |
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| CN (1) | CN112403534A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201493120U (en) * | 2009-03-05 | 2010-06-02 | 山东博科生物产业有限公司 | Air-makeup biological safety cabinet |
| CN106969464A (en) * | 2017-05-08 | 2017-07-21 | 李庆元 | Indoor ventilation system |
-
2020
- 2020-09-28 CN CN202011045583.1A patent/CN112403534A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201493120U (en) * | 2009-03-05 | 2010-06-02 | 山东博科生物产业有限公司 | Air-makeup biological safety cabinet |
| CN106969464A (en) * | 2017-05-08 | 2017-07-21 | 李庆元 | Indoor ventilation system |
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Application publication date: 20210226 |
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| RJ01 | Rejection of invention patent application after publication |