CN109248895A - Vent cabinet under a kind of laboratory air-curtain type exhausting - Google Patents
Vent cabinet under a kind of laboratory air-curtain type exhausting Download PDFInfo
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- CN109248895A CN109248895A CN201810786929.XA CN201810786929A CN109248895A CN 109248895 A CN109248895 A CN 109248895A CN 201810786929 A CN201810786929 A CN 201810786929A CN 109248895 A CN109248895 A CN 109248895A
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- Prior art keywords
- diversion trench
- deflector
- cabinet body
- air
- cabinet
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F9/00—Use of air currents for screening, e.g. air curtains
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
This application provides vent cabinets under a kind of laboratory air-curtain type exhausting, belong to vent cabinet apparatus field.Including cabinet body, sliding door is opened in cabinet body front side wall, and the first deflector is set to cabinet body rear interior, forms the second diversion trench with cabinet body rear wall；Third diversion trench, is set to bottom of cabinet bulk, and the both ends of third diversion trench are connected to the lower part of front side bottom in cavity and the second diversion trench respectively；The first blower is equipped in second diversion trench；Cavity is surrounded by sliding door, cabinet body upper wall, bottom, deflector and left and right sidewall；Wind-supplying mouth is set to cabinet body top, is connected to cavity and outdoor；Air outlet is set to cabinet body top, is connected to the second diversion trench and outdoor.The application is easy to operate, it is at low cost, due to being provided with third diversion trench and inner fan exhausting below experiment cabinet door, tonifying Qi can be drawn onto third diversion trench, in experiment cabinet doorway and form air curtain, generated pernicious gas is excessive when effectivelying prevent testing in cabinet, prevents pollution room air, and security performance is high.
Description
Technical field
The application belongs to vent cabinet under experiment cabinet field more particularly to a kind of laboratory air-curtain type exhausting.
Background technique
Laboratory hood is the important component in laboratory.Dangerous or pollution work must divulge information in laboratory
It is carried out in cabinet, with Protection personnel, produced pollution harmful substance must be via vent cabinet in the laboratory work
Discharge.
When traditional vent cabinet air draft, apparent big return-flow structure can be generated in cabinet, and though sliding door aperture amplitude how,
These big return-flow structures all will form, and as the aperture of sliding door reduces, return-flow structure be will increase.Because cabinet is close in recirculating zone
Door inside, the air-flow of cabinet door opening disorder nearby will cause cabinet door fluid inside and leak to outside cabinet, can impact to the person, and
Room conditioning wind can be taken away when general vent cabinet air draft together, will cause the waste of resource.
Summary of the invention
(1) technical problems to be solved
It is easy to operate this application provides vent cabinet under a kind of laboratory air-curtain type exhausting in view of above-mentioned technical problem, it mends
Wind effect is good, and wind speed is uniform, at low cost, the second blower exhausting and the first fan induced draught, and two blowers cooperate, and can will mend
Aspiration forms air curtain to third diversion trench, and generated pernicious gas is excessive when effectivelying prevent testing in cabinet, security performance
Height, and can effectively save resource, the application is equipped with rectification layer and diversion trench, it is distinguished and admirable run through from rectification layer after will not generate reflux,
It is distinguished and admirable compared to tradition ventilation cabinet more stable, it can effectively accelerate water conservancy diversion speed.
(2) technical solution
This application provides vent cabinets under a kind of laboratory air-curtain type exhausting characterized by comprising
Cabinet body, the cabinet body include:
Sliding door, is opened in cabinet body front side wall,
First deflector is set to cabinet body rear interior, forms the second diversion trench with cabinet body rear wall；
Third diversion trench, is set to bottom of cabinet bulk, the both ends of the third diversion trench respectively with front side bottom in cavity and
The lower part of second diversion trench is connected to；The first blower is equipped in second diversion trench；
Cavity is surrounded by sliding door, cabinet body upper wall, bottom, deflector and left and right sidewall；
Wind-supplying mouth is set to cabinet body top, is connected to cavity and outdoor；
Air outlet is set to cabinet body top, is connected to the second diversion trench and outdoor.
In some embodiments of the present application, the sliding door includes:
Outer sliding door；
Inner deflector is set on the inside of outer sliding door and forms the first diversion trench between outer sliding door；
The inner deflector top is equipped with second deflector in oblique wind-supplying mouth direction, between inner deflector lower part and bottom
Between be separated with opening.
In some embodiments of the present application, third blower is equipped on the inside of first diversion trench.
In some embodiments of the present application, the inner deflector lower part is equipped with interior sliding door.
In some embodiments of the present application, the bottom is equipped with bottom plate, is equipped at intervals with deck plate on the bottom plate, described
The third diversion trench is formed between bottom plate and the deck plate.
In some embodiments of the present application, first deflector is arranged by muti-piece deflector interval.
In some embodiments of the present application, backboard, the backboard and first deflector are equipped in the rear wall
It is fixedly connected by fixing seat.
In some embodiments of the present application, further include
Third deflector, the third deflector is vertical with the deck plate to be connect and is set to the backboard and described first
Between deflector.
In some embodiments of the present application, the cavity top is equipped with rectification layer.
In some embodiments of the present application, the top or lower part of the rectification layer are equipped with filter device.
In some embodiments of the present application, the filter device is filter screen, and the middle part of the rectification layer is equipped with function
Slot.
In some embodiments of the present application, the first deflector upper end is equipped with draft hood, and the draft hood connection is described out
Air port.
(3) beneficial effect
It can be seen from the above technical proposal that the application at least has the advantages that one of them:
(1) vent cabinet under air-curtain type exhausting in laboratory provided by the present application, easy to operate, benefit wind effect is good, and wind speed is uniform,
It is at low cost, due to being provided with third diversion trench and inner fan exhausting below experiment cabinet door, tonifying Qi can be drawn onto third and led
Chute in experiment cabinet doorway and forms air curtain, and generated pernicious gas is excessive when effectivelying prevent testing in cabinet, prevents pollution room
Interior air, security performance are high.
(2) vent cabinet under air-curtain type exhausting in laboratory provided by the present application is equipped with rectification layer and diversion trench, distinguished and admirable from rectification
Layer will not generate reflux after running through, and it is distinguished and admirable more stable to compare tradition ventilation cabinet, it is not easy to by experimental gas in cabinet from cabinet doorway
It overflows, effectively prevent pollution room air, and the first diversion trench multi-compartment is vented, and is further increased inside air draught and is avoided air
The effect overflowed from cabinet doorway.
(3) vent cabinet under air-curtain type exhausting in laboratory provided by the present application is equipped with the first diversion trench on doorway, and lower part is equipped with
Third diversion trench, since the first diversion trench has blower to blow, lower part, which is equipped in third diversion trench, blower exhausting, is formed in cabinet doorway
Coherent air blast air curtain, the pernicious gas that effective blocking experiment generates in the process are overflowed outside cabinet body, are ensured personal safety.
(4) vent cabinet under air-curtain type exhausting in laboratory provided by the present application, the first diversion trench is interior to be equipped with blower, can accelerate
The formation of air curtain and the continuity for keeping air curtain.
(5) vent cabinet under air-curtain type exhausting in laboratory provided by the present application, cabinet body top are equipped with outside wind-supplying mouth communication chamber, directly
It connects and benefit wind is carried out using outdoor air, without indoor air conditioner fresh air is tested, effectively save resource is to save the cost.
(6) vent cabinet under air-curtain type exhausting in laboratory provided by the present application is equipped with the second deflector, can control and mends wind toward in fact
Cabinet doorway and chamber internal shunt are tested, experiment cabinet doorway air curtain intensity is improved.
(7) vent cabinet under air-curtain type exhausting in laboratory provided by the present application is equipped with rectification layer, can be to entering from wind-supplying mouth
Sinuous flow carries out rectification and becomes the neat air-flow of multi beam, will not generate spiral vortex type air-flow and cause excessive, be improved operating safety factor.
(8) vent cabinet under air-curtain type exhausting in laboratory provided by the present application is equipped with and mends fan housing, mends and is equipped with filter screen in fan housing
And LED light, filter screen can be filtered the rubbish of entrance, guarantee the free from admixture from the air that wind-supplying mouth enters, and guarantee ventilation
The air fresh ventilation of cabinet.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vent cabinet under the air-curtain type exhausting of the application laboratory.
Fig. 2 is half-open structural schematic diagram of pulling in vent cabinet under the air-curtain type exhausting of the application laboratory.
Fig. 3 is the structural schematic diagram of sliding door standard-sized sheet in vent cabinet under the air-curtain type exhausting of the application laboratory.
Specific embodiment
Easy to operate this application provides vent cabinet under a kind of laboratory air-curtain type exhausting, benefit wind effect is good, and wind speed is equal
It is even, it is at low cost, due to being provided with third diversion trench and inner fan exhausting below experiment cabinet door, a part of tonifying Qi can be inhaled
To third diversion trench, in experiment cabinet doorway and air curtain is formed, generated pernicious gas is excessive when effectivelying prevent testing in cabinet, prevents
Room air is only polluted, security performance is high.
Vent cabinet under air-curtain type exhausting in laboratory provided by the present application, is equipped with rectification layer and diversion trench, and air-flow is from rectification layer
Reflux will not be generated after running through, it is distinguished and admirable more stable compared to tradition ventilation cabinet, it is not easy to which that experimental gas in cabinet is overflow from cabinet doorway
Out, it is effectively prevent pollution room air, and the first diversion trench multi-compartment is vented, and further increases steady flow result.
For the purposes, technical schemes and advantages of the application are more clearly understood, below in conjunction with specific embodiment, and reference
The application is further described in attached drawing.
Embodiment 1:
In an exemplary embodiment of the disclosure, vent cabinet under a kind of laboratory air-curtain type exhausting is provided, is such as schemed
Shown in 1-3, comprising:
Cabinet body 22, the cabinet body include:
Sliding door, is opened in 22 front side wall of cabinet body,
First deflector is set to 22 rear interior of cabinet body, forms the second diversion trench 23 with 22 rear wall of cabinet body；
Third diversion trench 10, is set to 22 bottom of cabinet body, the both ends of the third diversion trench 10 respectively in cavity 24 before
The connection of the lower part of side bottom and the second diversion trench 23；The first blower 25 is equipped in second diversion trench 23；
Cavity 24 is surrounded by sliding door, cabinet body upper wall, bottom, deflector and left and right sidewall；
Wind-supplying mouth 1 is set to 22 top of cabinet body, is connected to cavity 24 and outdoor；
Air outlet 12 is set to 22 top of cabinet body, is connected to the second diversion trench 23 and outdoor.
First blower 25 and 2 cooperating of third blower, can effectively will be in the first diversion trench 4 or the 4th diversion trench
Benefit wind pump by the second diversion trench 23.
Further, the sliding door includes:
Outer sliding door 5；
Inner deflector is set between outer 5 inside of sliding door and outer sliding door 5 and forms the first diversion trench 4；
The inner deflector top is equipped with second deflector 3 in oblique 1 direction of wind-supplying mouth, inner deflector lower part and bottom it
Between between be separated with opening.First blower 25 can be effectively intracorporal by the first diversion trench 4 and/or chamber with the mutual cooperation of the second blower
It mends wind to be evacuated in third diversion trench 10, forms coherent air curtain using the second diversion trench 23.
Further, it is equipped in the cabinet body 22 and mends fan housing 16, mend the top that fan housing 16 is set to rectification layer 15, mend fan housing 16
It is the cavity by being formed at the top of the second deflector 3, rectification layer 15, inclination fixed plate 14 and cabinet body, the second deflector 3 is led with interior
The tilt angle of flowing plate is 130-180 degrees, and the second deflector 3 includes an inclined plate and riser, and the top of inclined plate is vertically equipped with perpendicular
Version, riser are set to 1 inside of wind-supplying mouth at the one third of left side, it is ensured that first can be entered simultaneously by mending wind from wind-supplying mouth
In diversion trench 4 and cavity, guarantee that the harmful exhaust in vent cabinet will not spill over interior outside, guarantees effectively discharge.
Further, it is equipped with third blower 2 on the inside of first diversion trench, third blower 2 is better in order to mend wind
Exhausting is simultaneously sent in the first diversion trench 4.
Further, the inner deflector lower part is equipped with interior sliding door 6.
Further, the bottom is equipped with bottom plate 26, is equipped at intervals with deck plate 9, the bottom plate 26 and institute on the bottom plate
It states and forms the third diversion trench 10 between deck plate 9, the structure in a rectangular trapezoid of third diversion trench 10.
Further, first deflector by muti-piece deflector 19 be spaced be arranged, multi-compartment exhaust, further increase to
The effect that interior air draught avoids air from overflowing from cabinet doorway.
Further, backboard 18 is equipped in the side wall, the backboard 18 passes through fixing seat 20 with first deflector
Connection, fixing seat 20 are bolt arrangement, and backboard 18 is integrally formed and fixes detachably in cavity wall, so that the first deflector
It is connect with cabinet body stronger.
It further, further include third deflector 21, the third deflector 21 is vertical with the deck plate 9 to be connect and set
Between the backboard 18 and first deflector, third deflector 21 is perpendicularly fixed on deck plate 9, third deflector 21
Seat 20 can also be fixed simultaneously with the deflector of bottom end to be fixedly connected, it can be more stable.
Further, 24 top of cavity is equipped with rectification layer 15, the air-flow for the disorder that rectification layer 15 enters wind-supplying mouth 1
It is rectified, can be generated to avoid reflux, the top or lower part of the rectification layer 15 are equipped with filter device, can be according to user
Demand is configured.
In some embodiments of the present application, the filter device is filter screen, and one end of the rectification layer 15 is equipped with function
Energy slot 7, function trough 7 can be equipped with LED light, and the air entered from wind-supplying mouth 1 can be filtered by filter screen, guarantee to enter cavity
24 and first the air of diversion trench 4 be clean air, LED light is for illuminating in favor of experiment.
Further, first deflector upper end is equipped with draft hood 13, and the draft hood 13 is connected to the air outlet 12,
The left side of draft hood 13 is equipped with an inclination fixed plate 14, and inclination fixed plate 14 is connect with 22 top of cabinet body, lower end and rectification layer
15 connections.
Working principle are as follows: as shown in Figure 1, when it is interior sliding door 6 with it is outer sliding door 5 completely close when, it is interior sliding door 6 with it is outer sliding door 5 it
Between form the first diversion trench 4, when mending wind, mend wind from wind-supplying mouth 1, there is the air-flow of one third to enter the first diversion trench from wind-supplying mouth
4 and cavity 24 in, air-flow enters from wind-supplying mouth 1, enters the first diversion trench 4, third blower 2 and the first wind by third blower 2
Machine 25 works at the same time, and successively the air-flow of wind-supplying mouth 1 passes sequentially through the first diversion trench 4, third diversion trench 10 and the second diversion trench
And from air outlet, in addition 2/3rds air-flow is directly entered cavity 24, enters rectification layer 15 by mending fan housing 16, through whole
Air-flow after fluid layer 15 rectifies enters the second diversion trench 23, enters air outlet 12 by draft hood 13.
As shown in figure 3, forming first when interior sliding door 6 is fully opened with outer sliding door 5 between interior sliding door 6 and outer sliding door 5 and leading
Chute 4 when mending wind, mends wind from wind-supplying mouth 1, has the air-flow of one third to enter in the first diversion trench 4 and cavity 24 from wind-supplying mouth,
Air-flow enters from wind-supplying mouth 1, enters the first diversion trench 4 by third blower 2, passes sequentially through the first diversion trench 4, third diversion trench
10 and second diversion trench and from air outlet, in addition 2/3rds air-flow is directly entered cavity 24, passes through and mends fan housing 16
Into rectification layer 15, the air-flow after rectified layer 15 rectifies enters the second diversion trench 23, enters after the pumping of draft hood 13
Fraction in first diversion trench 4 and cavity 24 is pumped into third diversion trench 10 by air port 12 by the first blower 25,
It is sent to using the second diversion trench 23 and enters air outlet 12 after draft hood 13 for the foul smell discharge in vent cabinet, can effectively saved
About resource.
Since the air in cavity 24 is taken away from the first deflector lower part and/or the first deflector spaced openings, in the cavity
Air draught in being formed, and the air draught below cabinet door of third diversion trench 10 form air curtain at cabinet door, avoid in cabinet body air from cabinet
Door overflows.
So far, the implementation process introduction of embodiment 1 finishes.
So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art
There should be clear understanding to the application.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various specific structures, shape or the mode mentioned in embodiment.
It should also be noted that, can provide the demonstration of the parameter comprising particular value herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint.The side mentioned in embodiment
It is only the direction with reference to attached drawing to term, such as "upper", "lower", "front", "rear", "left", "right" etc., is not used to limit this
The protection scope of application.In addition, unless specifically described or the step of must sequentially occur, the sequences of above-mentioned steps there is no restriction in
It is listed above, and can change or rearrange according to required design.And above-described embodiment can be based on design and reliability
Consider, the collocation that is mixed with each other is used using or with other embodiments mix and match, i.e., the technical characteristic in different embodiments can be with
Freely form more embodiments.
Particular embodiments described above has carried out further in detail the purpose of the application, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not intended to limit this application the foregoing is merely the specific embodiment of the application
Within spirit herein and principle, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the application
Within the scope of shield.
Claims (12)
1. vent cabinet under a kind of laboratory air-curtain type exhausting characterized by comprising
Cabinet body (22), the cabinet body include:
Sliding door, is opened in cabinet body (22) front side wall,
First deflector is set to cabinet body (22) rear interior, forms the second diversion trench (23) with cabinet body (22) rear wall；
Third diversion trench (10), is set to cabinet body (22) bottom, the both ends of the third diversion trench (10) respectively with cavity (24)
Interior front side bottom is connected to the lower part of the second diversion trench (23)；The first blower (25) are equipped in second diversion trench (23)；
Cavity (24) is surrounded by sliding door, cabinet body upper wall, bottom, deflector and left and right sidewall；
Wind-supplying mouth (1) is set to cabinet body (22) top, is connected to cavity (24) and outdoor；
Air outlet (12) is set to cabinet body (22) top, is connected to the second diversion trench (23) and outdoor.
2. vent cabinet under air-curtain type exhausting in laboratory according to claim 1, which is characterized in that the sliding door includes:
Outer sliding door (5)；
Inner deflector is set on the inside of outer sliding door (5) and forms the first diversion trench (4) between outer sliding door (5)；
The inner deflector top is equipped with second deflector (3) in oblique wind-supplying mouth (1) direction, inner deflector lower part and bottom it
Between between be separated with opening.
3. vent cabinet under air-curtain type exhausting in laboratory according to claim 2, which is characterized in that first diversion trench
(4) inside is equipped with third blower (2).
4. vent cabinet under air-curtain type exhausting in laboratory according to claim 3, which is characterized in that the inner deflector lower part
Interior sliding door (6) is installed.
5. vent cabinet under air-curtain type exhausting in laboratory according to claim 1, which is characterized in that the bottom is equipped with bottom plate
(26), it is equipped at intervals on the bottom plate deck plate (9), forms the third between the bottom plate (26) and the deck plate (9)
Diversion trench (10).
6. vent cabinet under air-curtain type exhausting in laboratory according to claim 1, which is characterized in that first deflector by
The setting of muti-piece deflector (19) interval.
7. vent cabinet under air-curtain type exhausting in laboratory according to claim 5, which is characterized in that be equipped in the rear wall
Backboard (18), the backboard (18) are fixedly connected with first deflector by fixing seat (20).
8. vent cabinet under air-curtain type exhausting in laboratory according to claim 7, which is characterized in that further include third deflector
(21), the third deflector (21) is vertical with the deck plate (9) connect and leads set on the backboard (18) with described first
Between flowing plate.
9. vent cabinet under air-curtain type exhausting in laboratory according to claim 1-8, which is characterized in that the cavity
(24) top is equipped with rectification layer (15).
10. vent cabinet under air-curtain type exhausting in laboratory according to claim 9, which is characterized in that the rectification layer (15)
Top or lower part be equipped with filter device.
11. vent cabinet under air-curtain type exhausting in laboratory according to claim 10, which is characterized in that the filter device is
The middle part of filter screen, rectification layer (15) is equipped with function trough (7).
12. vent cabinet under air-curtain type exhausting in laboratory according to claim 11, which is characterized in that first deflector
Upper end is equipped with draft hood (13), and the draft hood (13) is connected to the air outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786929.XA CN109248895A (en) | 2018-07-17 | 2018-07-17 | Vent cabinet under a kind of laboratory air-curtain type exhausting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786929.XA CN109248895A (en) | 2018-07-17 | 2018-07-17 | Vent cabinet under a kind of laboratory air-curtain type exhausting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109248895A true CN109248895A (en) | 2019-01-22 |
Family
ID=65048638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810786929.XA Pending CN109248895A (en) | 2018-07-17 | 2018-07-17 | Vent cabinet under a kind of laboratory air-curtain type exhausting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109248895A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110479722A (en) * | 2019-08-20 | 2019-11-22 | 广东天赐湾实验室装备制造有限公司 | The energy-saving safe laboratory hood circulatory system |
| CN112273887A (en) * | 2020-10-28 | 2021-01-29 | 潍坊工程职业学院 | Cabinet is stored to air inner loop protection formula archives |
| CN112691477A (en) * | 2020-12-07 | 2021-04-23 | 辽宁工程技术大学 | Air curtain and cloth bag combined type dust removal device suitable for transfer system |
| CN113385514A (en) * | 2021-07-21 | 2021-09-14 | 青岛中科汉维实验室装备科技有限公司 | Air supplementing type exhaust cabinet |
| CN113751453A (en) * | 2021-08-25 | 2021-12-07 | 苏州特福佳实验室***工程有限公司 | High-precision leveling fume hood for laboratory |
| CN114087709A (en) * | 2021-10-21 | 2022-02-25 | 山东奇虎空调设备集团有限公司 | Centrifugal air curtain machine |
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| CN112273887A (en) * | 2020-10-28 | 2021-01-29 | 潍坊工程职业学院 | Cabinet is stored to air inner loop protection formula archives |
| CN112691477A (en) * | 2020-12-07 | 2021-04-23 | 辽宁工程技术大学 | Air curtain and cloth bag combined type dust removal device suitable for transfer system |
| CN113385514A (en) * | 2021-07-21 | 2021-09-14 | 青岛中科汉维实验室装备科技有限公司 | Air supplementing type exhaust cabinet |
| CN113751453A (en) * | 2021-08-25 | 2021-12-07 | 苏州特福佳实验室***工程有限公司 | High-precision leveling fume hood for laboratory |
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