CN104984972B - A kind of ventilation hoods for laboratories - Google Patents
A kind of ventilation hoods for laboratories Download PDFInfo
- Publication number
- CN104984972B CN104984972B CN201510377729.5A CN201510377729A CN104984972B CN 104984972 B CN104984972 B CN 104984972B CN 201510377729 A CN201510377729 A CN 201510377729A CN 104984972 B CN104984972 B CN 104984972B
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- China
- Prior art keywords
- cabinet
- cabinet door
- air
- control device
- blower fan
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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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
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- Ventilation (AREA)
Abstract
The present invention proposes a kind of ventilation hoods for laboratories, including cabinet, cabinet door and controlling organization；Blower fan, screen pack, isocon, the first guide duct and the second guide duct are installed in cabinet；It is provided with cabinet in operating room, air intake passage and filter chamber, cabinet door and the first observation window is installed；Cabinet door bottom, which is provided with the top of the first air-out passage, cabinet, is provided with the second air-out passage, and isocon air outlet connects the first air-out passage by the first guide duct, and isocon air outlet connects the second air-out passage by the second guide duct；It is rotatably mounted in isocon to have flow divider；Controlling organization includes control device, infrared induction device and drive device, drive device drive connection cabinet door；Control device is communicated to connect with infrared induction device, drive device and blower fan.The present invention is it is possible to prevente effectively from pernicious gas is sucked by human body, and convenient experimental operation operates article hardly by air speed influence, and can realize energy-conservation in experimentation.
Description
Technical field
The present invention relates to laboratory equipment, and in particular to a kind of ventilation hoods for laboratories.
Background technology
Vent cabinet is a kind of intermittent local ventilation commonly used in laboratory, vent cabinet can by pernicious gas completely, row in time
Go out workplace, can prevent operator from sucking gas that is poisonous, being harmful to, have peculiar smell, protection well is served to operator and is made
With.Area is usually provided with vent cabinet, operating personnel are tested in workspace, the blower fan on vent cabinet top arranges pernicious gas
Go out.Existing vent cabinet is that exhaust outlet is set at the top of cabinet, top install blower fan, due to exhaust outlet from a distance from workspace compared with
Greatly, to pump pernicious gas completely, then the wind speed of blower fan is larger, and workspace wind speed can be made exceeded, further, since gas molecule
Drastically move up and down, turbulent flow can be formed, cause the wind speed of workspace uneven, pernicious gas is absorbed not exclusively, and due to wind
Speed is probably impacted to experimental result.
China Patent Publication No. is CN103624051A patent, using the space on work top as workspace, workbench
Up-narrow and down-wide conical flow guiding pipe is installed, conical flow guiding pipe coordinates blower fan to efficiently solve above-mentioned workspace wind speed not above face
Uniformly, the problem of wind speed is big, but still it is difficult to avoid that pernicious gas is sucked by human body in operating process, even if the sky of workspace
The more uniform possibility that also still there is influence experimental result of gas velocity, because inlet scoop distance behaviour's work top is closer to the distance, work
Make human users inconvenient, leaving rear fan in staff will also keep it turned on, although avoid pernicious gas air inlet,
Can energy waste but cause.
The content of the invention
The technical problem existed based on background technology, the present invention proposes a kind of ventilation hoods for laboratories, and it can be effective
Pernicious gas is avoided to be sucked by human body, convenient experimental operation operates article hardly by air speed influence in experimentation, and
And energy-conservation can be realized.
A kind of ventilation hoods for laboratories proposed by the present invention, including cabinet, cabinet door and controlling organization；
Blower fan, screen pack, isocon, the first guide duct and the second guide duct are installed in cabinet；Provided with operation in cabinet
Room, air intake passage and filter chamber, cabinet door are movably mounted on cabinet and positioned at the side of operating room, the adjustable behaviour of cabinet door movement
Make that the first observation window is installed in room and external contact area, cabinet door；Air intake passage is located at operating room bottom close to cabinet door one
Side, air intake passage connection air inlet, fan outlet pipeline connection filter chamber, screen pack and isocon are arranged on filter chamber
It is interior, screen pack isolation isocon air inlet and fan outlet；Cabinet door bottom is provided with the first air-out passage, provided with the at the top of cabinet
Two air-out passages, isocon air outlet connects the first air-out passage by the first guide duct, and isocon air outlet is led by second
Airduct connects the second air-out passage；Rotatably mounted in isocon to have flow divider, flow divider is arranged on isocon air outlet side
And positioned between the first guide duct air inlet and the second guide duct air inlet, when blower fan starts, flow divider rotates adjustable unit
Time enters the air mass flow of the first guide duct and the air mass flow of second guide duct；
Controlling organization includes control device, infrared induction device and drive device, and drive device drive connection cabinet door is driven
Dynamic device can drive cabinet door to be moved on cabinet；Control device is communicated to connect with infrared induction device, drive device and blower fan,
Control device is preset with distance value, very first time value and area value, and control device obtains people and cabinet by infrared induction device
The distance between door；When the distance that control device is got in default very first time value between people and cabinet door be respectively less than preset away from
From value, control device control blower fan starts and controls drive device to work, and it is default face with extraneous contact area to make operating room
Product value, when the distance that control device is got in default very first time value between people and cabinet door is all higher than pre-determined distance value, is controlled
Device control blower fan processed is closed and controls drive device to work, and it is zero with extraneous contact area to make operating room.
Preferably, multiple second observation windows are installed, the second observation window is located at operating room and is different from cabinet door side on cabinet
Side wall on, operational circumstances in convenient others personal observations' operating rooms and to provide sufficient light source in operating room.
Preferably, the first observation window and the second observation window are implosion guard, if occur in operation it is dangerous as far as possible
Ensure the outer personal security of operating room.
Preferably, tap is installed in operating room, facilitates staff to operate,
Preferably, the water guide pipeline that waste-filling pool is communicated with waste-filling pool, cabinet is provided with operating room, water guide pipeline includes
S type traps, avoid operation indoor harmful gas from entering Laboratory Air by water guide pipeline while sewage is discharged
In.
Preferably, cabinet is provided with material storage room, facilitates staff's putting on article.
Preferably, blower fan X button is installed, control device is communicated to connect with blower fan X button on cabinet, control dress
Put and be preset with the second time value, when control device receives the information of blower fan X button, control device is in the second preset time
Interior holding blower fan is closed, when in progress, some will not produce the experiment of influence to human body, it is to avoid blower fan work is caused
Energy waste.
Preferably, cabinet door X button, the communication connection of control device cabinet door X button, control device are installed on cabinet
The second time value is preset with, when control device receives the information of cabinet door X button, control device is in the second preset time value
Interior control drive device work, remains off cabinet door, observes the article in operating room around cabinet in staff
When, it is to avoid drive device work causes energy waste and causes pernicious gas to have the possibility of spilling.
Mechanism of the present invention is simple, easy to operate, and control device obtains default very first time value by infrared induction device
The distance between interior people and cabinet door, control device judge the according to the distance between people in the very first time value got and cabinet door
Relation in one time value between the distance between people and cabinet door and pre-determined distance, and according to control blower fan and drive device work
Make, it is to avoid staff is to bring into operation by the ventilation hoods for laboratories blower fan and drive device, and is thought in staff
It is not in the situation that cabinet door is remained off to carry out laboratory, and the first air-out passage coordinates air intake passage, realizes harmful gas
Body enters air intake passage, is discharged after filtration from the first air-out passage, it is to avoid sucked by staff, is shunted by adjusting
Valve can effectively adjust the wind speed of air outlet, can be according to different experiment flexible modulations, and being moved in cabinet face makes operating room
It is zero with extraneous contact area and when closing blower fan, the safety of staff can be ensured while energy-conservation.
Brief description of the drawings
Fig. 1 is a kind of ventilation hoods for laboratories main view direction structure schematic diagram proposed by the present invention；
Fig. 2 is a kind of ventilation hoods for laboratories left view direction sectional view proposed by the present invention.
Embodiment
It is shown referring to Figures 1 and 2, a kind of ventilation hoods for laboratories proposed by the present invention, including cabinet 1, cabinet door 2 and control
Mechanism 3；
Blower fan 4, screen pack 5, isocon 6, the first guide duct 7 and the second guide duct 8 are installed in cabinet 1；Set in cabinet 1
There are operating room 11, air intake passage 12 and filter chamber 13, cabinet door 2 is movably mounted on cabinet 1 and positioned at the side of operating room 11,
First observation window 21 is installed in the adjustable operating room 11 of the movement of cabinet door 2 and external contact area, cabinet door 2；Air intake passage 12
Positioned at the bottom of operating room 11 close to the side of cabinet door 2, the connection air inlet of blower fan 4 of air intake passage 12, the air outlet pipeline connection mistake of blower fan 4
Filter chamber 13, screen pack 5 and isocon 6 are arranged in filter chamber 13, the isolation air inlet of isocon 6 of screen pack 5 and the air-out of blower fan 4
Mouthful；The bottom of cabinet door 2 is provided with the first air-out passage 22, and the top of cabinet 1 is provided with the second air-out passage 14, and the air outlet of isocon 6 passes through
First guide duct 7 connects the first air-out passage 22, and the air outlet of isocon 6 connects the second air-out passage 14 by the second guide duct 8；
Rotatably mounted in isocon 6 to have flow divider 61, flow divider 61 is arranged on the air outlet side of isocon 6 and positioned at the first guide duct
Between 7 air inlets and the air inlet of the second guide duct 8, when blower fan 4 starts, flow divider 61 rotates the adjustable unit interval and enters the
The air mass flow of the air mass flow of one guide duct 7 and the second guide duct 8；
Controlling organization 3 includes control device 31, infrared induction device 32 and drive device 33, and the driving of drive device 33 connects
Receive at the counter door 2, drive device 33 can drive cabinet door 2 to be moved on cabinet；Control device 31 is filled with infrared induction device 32, driving
Put 33 and blower fan 4 communicate to connect, control device 31 is preset with distance value, very first time value, area value and the second time value.
In present embodiment, multiple second observation windows 15 are installed on cabinet 1, the second observation window 15 is located at operating room 11 not
On the side wall for being same as the side of cabinet door 2, the first observation window 21 and the second observation window 15 are implosion guard.
In present embodiment, it is provided with operating room 11 in tap 111, operating room 11 and is provided with waste-filling pool 112, cabinet 1
The water guide pipeline 16 of waste-filling pool 112 is inside communicated with, water guide pipeline 16 includes S type traps.
In present embodiment, cabinet 1 is provided with material storage room 17.
In present embodiment, blower fan X button 18 and cabinet door X button 19 be installed on cabinet 1, control device 31 with
Blower fan X button 18 and cabinet door X button 19 are communicated to connect.
The present invention is in use, control device 31 obtains the distance between people and cabinet door 2 by infrared induction device 32；When
The distance that control device 31 is got in default very first time value between people and cabinet door 2 is respectively less than pre-determined distance value, control dress
Put 31 control blower fans to start and control drive device 33 to work, it is preset area value with extraneous contact area to make operating room 11,
When the distance that control device 31 is got in default very first time value between people and cabinet door 2 is all higher than pre-determined distance value, control
The control blower fan 4 of device 31 is closed and controls drive device 33 to work, and it is zero with extraneous contact area to make operating room 11.
When control device 31 receives the information of blower fan X button 18, control device 31 is kept in the second preset time
Blower fan 4 is closed, and when control device 31 receives the information of cabinet door X button 19, control device 31 is default second
Control drive device 33 works in time value, remains off cabinet door.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of ventilation hoods for laboratories, it is characterised in that：Including cabinet (1), cabinet door (2) and controlling organization (3)；
Blower fan (4), screen pack (5), isocon (6), the first guide duct (7) and the second guide duct (8) are installed in cabinet (1)；
Operating room (11), air intake passage (12) and filter chamber (13) are provided with cabinet (1), cabinet door (2) is movably mounted on cabinet (1)
And positioned at the side of operating room (11), cabinet door (2) is mobile to be can adjust in operating room (11) and extraneous contact area, cabinet door (2)
First observation window (21) is installed；Air intake passage (12) is located at operating room (11) bottom close to cabinet door (2) side, air intake passage
(12) blower fan (4) air inlet, blower fan (4) air outlet pipeline connection filter chamber (13), screen pack (5) and isocon (6) peace are connected
In filter chamber (13), screen pack (5) isolation isocon (6) air inlet and blower fan (4) air outlet；Cabinet door (2) bottom is provided with
The second air-out passage (14) is provided with the top of first air-out passage (22), cabinet (1), isocon (6) air outlet passes through the first wind-guiding
Manage (7) and connect the first air-out passage (22), isocon (6) air outlet connects the second air-out passage by the second guide duct (8)
(14)；Rotatably mounted in isocon (6) to have flow divider (61), flow divider (61) is arranged on isocon (6) air outlet side simultaneously
Between the first guide duct (7) air inlet and the second guide duct (8) air inlet, when blower fan (4) starts, flow divider (61) is rotated
The adjustable unit interval enters the air mass flow of the first guide duct (7) and the air mass flow of the second guide duct (8)；
Controlling organization (3) includes control device (31), infrared induction device (32) and drive device (33), drive device (33)
Drive connection cabinet door (2), drive device (33) can drive cabinet door (2) to be moved on cabinet；Control device (31) and infrared ray sense
Device (32), drive device (33) and blower fan (4) communication connection are answered, control device (31) is preset with distance value, very first time value
And area value, control device (31) passes through infrared induction device (32) and obtains the distance between people and cabinet door (2)；When control dress
Put (31) and get the distance between people and cabinet door (2) respectively less than pre-determined distance value, control device in default very first time value
(31) control blower fan starts and controls drive device (33) to work, and it is preset area with extraneous contact area to make operating room (11)
Value, pre-determined distance is all higher than when control device (31) gets the distance between people and cabinet door (2) in default very first time value
Value, control device (31) control blower fan (4) is closed and controls drive device (33) to work, and makes operating room (11) and extraneous contact
Area is zero.
2. ventilation hoods for laboratories according to claim 1, it is characterised in that：Multiple second are provided with cabinet (1) to see
Window (15) is examined, the second observation window (15) is located at operating room (11) and is different from the side wall of cabinet door (2) side.
3. ventilation hoods for laboratories according to claim 2, it is characterised in that：First observation window (21) and the second observation window
(15) it is implosion guard.
4. ventilation hoods for laboratories according to claim 1, it is characterised in that：Tap is installed in operating room (11)
(111)。
5. ventilation hoods for laboratories according to claim 4, it is characterised in that：Waste-filling pool is provided with operating room (11)
(112) water guide pipeline (16) of waste-filling pool (112), is communicated with cabinet (1), water guide pipeline (16) includes S type traps.
6. ventilation hoods for laboratories according to claim 1, it is characterised in that：Cabinet (1) is provided with material storage room (17).
7. the ventilation hoods for laboratories according to claim 1-6 any one, it is characterised in that：Cabinet is provided with (1)
Blower fan X button (18), control device (31) and blower fan X button (18) are communicated to connect, and control device (31) is preset with the
Two time values, when control device (31) receives the information of blower fan X button (18), control device (31) is when second is default
It is interior to keep blower fan (4) to be closed.
8. the ventilation hoods for laboratories according to claim 1-6 any one, it is characterised in that：Cabinet is provided with (1)
Cabinet door X button (19), control device (31), cabinet door X button (19) communication connection, control device (31) is preset with second
Time value, when control device (31) receives the information of cabinet door X button (19), control device (31) is in the second preset time
Control drive device (33) work, remains off cabinet door in value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377729.5A CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377729.5A CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104984972A CN104984972A (en) | 2015-10-21 |
| CN104984972B true CN104984972B (en) | 2017-09-15 |
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| CN201510377729.5A Active CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106924844A (en) * | 2017-03-12 | 2017-07-07 | 龙文凯 | The device of magnetic therapy rhinitis |
| CN107008720A (en) * | 2017-05-25 | 2017-08-04 | 京华建设科技有限公司 | A kind of biological medicine research experiment vent cabinet provided with purification wall |
| CN107321751A (en) * | 2017-08-24 | 2017-11-07 | 中国安全生产科学研究院 | An edition workbench is washed in a kind of open type blowing and drawing ventilation gas defence |
| CN110743887A (en) * | 2018-07-24 | 2020-02-04 | 上海捷纳机电科技有限公司 | Fume chamber with automatic lifting cabinet door |
| CN113102432B (en) * | 2021-04-13 | 2021-12-14 | 博兰特智慧实验室(江苏)有限公司 | Intelligent fume hood system and control method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586530Y (en) * | 2002-11-25 | 2003-11-19 | 陆建国 | Draft cupboard for circulating using exhaust gas |
| CN101537376A (en) * | 2009-03-12 | 2009-09-23 | 李保标 | Laboratory ventilated cabinet |
| CN202361545U (en) * | 2011-12-04 | 2012-08-01 | 东华大学 | Frequency conversion and fixed frequency combined-type air conditioner and refrigerator all-in-one machine with human body infrared induction function |
| JP5860334B2 (en) * | 2012-04-05 | 2016-02-16 | 株式会社日立産機システム | Animal rearing safety cabinet |
| CN203711454U (en) * | 2013-12-26 | 2014-07-16 | 上海冠戈实业有限公司 | Air-hose-free self-cleaning type ventilation cabinet |
| CN203972435U (en) * | 2014-03-06 | 2014-12-03 | 中石化上海工程有限公司 | A kind of air-replenishing type ventilating cabinet |
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2015
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| CN104984972A (en) | 2015-10-21 |
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