CN206492778U - A kind of ventilation hoods for laboratories - Google Patents
A kind of ventilation hoods for laboratories Download PDFInfo
- Publication number
- CN206492778U CN206492778U CN201720090384.XU CN201720090384U CN206492778U CN 206492778 U CN206492778 U CN 206492778U CN 201720090384 U CN201720090384 U CN 201720090384U CN 206492778 U CN206492778 U CN 206492778U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- working chamber
- liquid
- deflector
- dividing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of ventilation hoods for laboratories, it includes cabinet, it is characterised in that：A dividing plate is vertically provided with cabinet, the inner chamber of cabinet is separated into working chamber and compensated cavity by dividing plate, a deflector is provided with the working chamber, gap is left between the lateral wall of deflector and the madial wall of working chamber, the top of deflector is provided with feed pipe, upper surface of the liquid through deflector in feed pipe is flowed in gap, and the liquid in gap flows to form water curtain layer from top to bottom under self gravitation effect along the side wall of working chamber, the lower surface of dividing plate and conflux gas spacing was left between the liquid level of the liquid of bottom of cabinet bulk, be located at the position corresponding to compensated cavity on the cabinet is used to detach the aspiration pump for aiding in chamber air provided with one.The utility model provides a kind of ventilation hoods for laboratories, and it is good for the filtration result of toxic and harmful gas, and toxic and harmful gas particle will not be deposited on vent cabinet inwall.
Description
Technical field
The utility model is related to the technical field of vent cabinet, specifically a kind of ventilation hoods for laboratories.
Background technology
For the healthy consideration of operating personnel in laboratory, during part toxic and harmful gas experiment is carried out
Need to carry out in vent cabinet, the operation principle of existing vent cabinet is to form air-flow in a cabinet in simple terms, utilizes sky
Toxic and harmful gas is taken away in the flowing of gas.But the vent cabinet of this prior art its for toxic and harmful gas clear efficiency
It is low, and vent cabinet meeting deposition fraction toxic and harmful gas particle on the inwall of vent cabinet during long-term use, and with
The closing of vent cabinet, micro toxic and harmful gas particle can be diffused to slowly in laboratory.
The content of the invention
Technical problem to be solved in the utility model is：A kind of ventilation hoods for laboratories is provided, it is for poisonous and harmful
The filtration result of gas is good, and toxic and harmful gas particle will not be deposited on vent cabinet inwall.
Technical solution adopted in the utility model is：A kind of ventilation hoods for laboratories is provided, it is included with inner chamber
Cabinet, it is characterised in that：A dividing plate is vertically provided with cabinet, the inner chamber of cabinet is separated into working chamber and auxiliary by dividing plate
Chamber, spacing is left between the lower surface of the dividing plate and the bottom surface of cabinet, is set for connecting in working chamber and compensated cavity, working chamber
There is the position on a workbench, the side wall of cabinet corresponding to working chamber to be provided with a gathering hole, stretched for the arm for operating personnel
Enter to working chamber, be located above workbench in the working chamber and be provided with a deflector, the lateral wall of deflector and working chamber
Gap is left between madial wall, the top of deflector is provided with upper surface flowing of the liquid through deflector in feed pipe, feed pipe
To gap, and liquid in gap flows to form water curtain layer from top to bottom under self gravitation effect along the side wall of working chamber,
Whole liquid confluxes in the bottom of cabinet, and the side wall of the cabinet is provided with leakage fluid dram and liquid level gauge, the lower surface of dividing plate with
Conflux and gas spacing was left between the liquid level of the liquid of bottom of cabinet bulk, described gas of crossing is smaller than 10mm and more than 1mm, institute
State the position being located on cabinet corresponding to compensated cavity is used to detach the aspiration pump for aiding in chamber air provided with one.
The bottom of the cabinet is provided with a tank, and the lateral wall of tank fits with the madial wall of cabinet, the cabinet it is upper
Orientation is provided with water tank in the position corresponding to working chamber, and feed pipe is connected with the water side of water tank.
Described tank is connected by leakage fluid dram with drainpipe, and drainpipe is connected with clarifier, for purification water tank
Interior liquid, the liquid after purification passes through in water pump pumps to water tank.
Described liquid is pure water.
Provided with supply chamber in described deflector, some spaced outlets are evenly distributed with the lower surface of deflector
Hole, venthole is connected with supply chamber.
After above structure, a kind of ventilation hoods for laboratories of the present utility model has following excellent compared with prior art
Point：First, the pernicious gas produced on workbench can be dissolved in when being spread in cabinet among water curtain layer, and the liquid of water curtain layer exists
Constantly flowing, therefore can be very good pernicious gas dissolving removal, it is to avoid deposit, secondly, pass through on cabinet madial wall
Compensated cavity and working chamber separate, and the air in working chamber was passed through gas spacing and enter in compensated cavity, therefore add work
Poisonous and harmful grain dissolution in chamber air is in the probability in liquid.
Brief description of the drawings
Fig. 1 is a kind of structural representation of ventilation hoods for laboratories of the present utility model.
Wherein, 1, cabinet, 2, dividing plate, 3, working chamber, 4, compensated cavity, 5, workbench, 6, gathering hole, 7, deflector, 8,
Gap, 9, feed pipe, 10, leakage fluid dram, 11, liquid level gauge, 12, cross gas spacing, 13, aspiration pump, 14, tank, 15, water tank, 16, supply
Chamber.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of ventilation hoods for laboratories, and it includes the cabinet 1 with inner chamber, it is characterised in that：Cabinet
A dividing plate 2 is vertically provided with body 1, the inner chamber of cabinet 1 is separated into working chamber 3 and compensated cavity 4, the dividing plate 2 by dividing plate 2
Lower surface and cabinet 1 bottom surface between leave spacing, for connecting working chamber 3 and compensated cavity 4, a work is provided with working chamber 3
Make the position on platform 5, the side wall of cabinet 1 corresponding to working chamber 3 and be provided with a gathering hole 6, stretched into for the arm for operating personnel
It is located at the top of workbench 5 to working chamber 3, in the working chamber 3 and is provided with a deflector 7, the lateral wall and working chamber of deflector 7
Leave gap 8 between 3 madial wall, the top of deflector 7 is provided with liquid in feed pipe 9, feed pipe 9 through the upper of deflector 7
End face is flowed in gap 8, and the liquid in gap 8 flows from top to bottom under self gravitation effect along the side wall of working chamber 3
Water curtain layer is formed, whole liquid confluxes in the bottom of cabinet 1, and the side wall of the cabinet 1 is provided with leakage fluid dram 10 and liquid level gauge
11, the lower surface of dividing plate 2 and conflux gas spacing 12 was left between the liquid level of the liquid of the bottom of cabinet 1, described crosses between gas
Being less than 10mm away from 12 and being more than the position being located on 1mm, the cabinet 1 corresponding to compensated cavity 4 is used to detach compensated cavity 4 provided with one
The aspiration pump 13 of interior air.
Above-mentioned water curtain layer refers to that liquid flows shape from top to bottom on the madial wall of cabinet 1 and on the side wall of dividing plate 2
Into a protective layer.
Gap 8 is left between the lateral wall of above-mentioned deflector 7 and the madial wall of working chamber 3 to refer to, deflector 7 and cabinet
Leave gap 8 between 1 madial wall, and between also being left between the side wall of deflector 7 and dividing plate 2 side that corresponds to working chamber 3
Gap 8.
The bottom of the cabinet 1 is provided with a tank 14, and the lateral wall of tank 14 is fitted with the madial wall of cabinet 1, the cabinet
The position that the top of body 1 is located at corresponding to working chamber 3 is provided with water tank 15, and feed pipe 9 is connected with the water side of water tank 15.
Described tank 14 is connected by leakage fluid dram 10 with drainpipe, and drainpipe is connected with clarifier, for purifying
Liquid in tank 14, the liquid after purification passes through in water pump pumps to water tank 15.
The cabinet 1 is provided with controller, and liquid level gauge 11 will detect that signal is sent to controller, and controller passes through detection
The keying of signal control water pump and power, thus control the liquid level in tank 14, the lower surface of final control dividing plate and water
The size for crossing gas spacing 12 in groove between liquid level.
Described liquid is pure water.
Provided with supply chamber 16 in described deflector 7, it is evenly distributed with the lower surface of deflector 7 some spaced
Venthole, venthole is connected with supply chamber 16.
The utility model preferred embodiment is described above, but is not to be construed as limiting the scope of the invention.
The utility model is not only limited to above example, and its concrete structure allows to change, all in the utility model demand for independence
The various change made in protection domain is in protection domain of the present utility model.
Claims (5)
1. a kind of ventilation hoods for laboratories, it includes the cabinet (1) with inner chamber, it is characterised in that：Along vertical side in cabinet (1)
To provided with a dividing plate (2), the inner chamber of cabinet (1) is separated into working chamber (3) and compensated cavity (4), the dividing plate (2) by dividing plate (2)
Lower surface and cabinet (1) bottom surface between leave spacing, for connecting working chamber (3) and compensated cavity (4), in working chamber (3)
Provided with a workbench (5), the position that working chamber (3) is corresponded on the side wall of cabinet (1) is provided with a gathering hole (6), for for behaviour
The arm for making personnel is stretched in working chamber (3), is located in the working chamber (3) above workbench (5) and is provided with a deflector
(7) gap (8), is left between the madial wall of the lateral wall of deflector (7) and working chamber (3), the top of deflector (7) is provided with confession
Upper surface of the liquid through deflector (7) in liquid pipe (9), feed pipe (9) is flowed in gap (8), and the liquid in gap (8)
Flow to form water curtain layer from top to bottom along the side wall of working chamber (3) under self gravitation effect, whole liquid conflux in cabinet
(1) bottom, the side wall of the cabinet (1) is provided with leakage fluid dram (10) and liquid level gauge (11), and the lower surface of dividing plate (2) is with confluxing
Gas spacing (12) was left between the liquid level of the liquid of cabinet (1) bottom, described gas spacing (12) of crossing is less than 10mm and big
It is used to detach taking out for compensated cavity (4) interior air provided with one in being located at the position corresponding to compensated cavity (4) on 1mm, the cabinet (1)
Air pump (13).
2. a kind of ventilation hoods for laboratories according to claim 1, it is characterised in that：The bottom of the cabinet (1) is provided with
One tank (14), the lateral wall of tank (14) is fitted with the madial wall of cabinet (1), and the top of the cabinet (1) is located at working chamber
(3) position corresponding to is provided with water tank (15), and feed pipe (9) is connected with the water side of water tank (15).
3. a kind of ventilation hoods for laboratories according to claim 2, it is characterised in that：Described tank (14) passes through discharge opeing
Mouth (10) is connected with drainpipe, and drainpipe is connected with clarifier, for the liquid in purification water tank (14), after purification
Liquid pass through water pump pumps to water tank (15) in.
4. a kind of ventilation hoods for laboratories according to claim 1, it is characterised in that：Described liquid is pure water.
5. a kind of ventilation hoods for laboratories according to claim 1, it is characterised in that：It is provided with described deflector (7)
Supply and some spaced ventholes are evenly distributed with chamber (16), the lower surface of deflector (7), venthole and supply chamber
(16) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090384.XU CN206492778U (en) | 2017-01-24 | 2017-01-24 | A kind of ventilation hoods for laboratories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090384.XU CN206492778U (en) | 2017-01-24 | 2017-01-24 | A kind of ventilation hoods for laboratories |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206492778U true CN206492778U (en) | 2017-09-15 |
Family
ID=59803784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720090384.XU Expired - Fee Related CN206492778U (en) | 2017-01-24 | 2017-01-24 | A kind of ventilation hoods for laboratories |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206492778U (en) |
-
2017
- 2017-01-24 CN CN201720090384.XU patent/CN206492778U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170915 Termination date: 20180124 |