CN209363245U - A kind of anti-backflow Environmental-protective ventilating cabinet - Google Patents
A kind of anti-backflow Environmental-protective ventilating cabinet Download PDFInfo
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- CN209363245U CN209363245U CN201920060684.2U CN201920060684U CN209363245U CN 209363245 U CN209363245 U CN 209363245U CN 201920060684 U CN201920060684 U CN 201920060684U CN 209363245 U CN209363245 U CN 209363245U
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Abstract
The utility model relates to a kind of anti-backflow Environmental-protective ventilating cabinets comprising cabinet body, operating platform and blower；Operating platform is set in cabinet body and the inner space of cabinet body is separated into the operating cavity being located above and underlying air draft chamber, and operating platform is equipped with the through-hole of connection operating cavity and air draft chamber；The cavity wall of air draft chamber is equipped with air outlet, and air outlet is connect with blower.The anti-backflow Environmental-protective ventilating cabinet can be avoided experimental gas and steam is condensed into drop and flows backwards and is back in vent cabinet, it keeps the inner wall cleaning of wind cabinet all and the experimental facilities for being set to station will not be impacted, while improving the flexibility of filter device, reducing filtering cost.
Description
Technical field
The utility model relates to laboratory ventilation equipment technical fields, and in particular to a kind of anti-backflow Environmental-protective ventilating cabinet.
Background technique
In the prior art, the air outlet of vent cabinet be located at the deflector in the front of vent cabinet to rear cavity or directly to
At the top of upper connection, when doing related experiment, the volatilization of sulfuric acid or hydrochloric acid, acid gas can condense upon inner wall before vent cabinet air draft with steam
Above, it may also condense upon on air draft tube wall, can be flowed backward to downwards on the station in vent cabinet along inner wall or tube wall after cohesion,
The Experimental Area for polluting station, causes to be difficult to clean up and clean up；It is not only dirty if what is flowed back is acid solution
Dye, also results in experimental facilities and corrosive pipeline, the health for even endangering experimental work personnel.
In addition, being also easy to produce toxic and harmful gas in experiment, if being directly vented to atmosphere, dirt can be caused to atmosphere
Dye is that multiple vent cabinets share a filter device in the prior art, and the volume of filter device is larger, occupied space is larger and not
Conducive to replacement, need to meet simultaneously the filtering requirement of all vent cabinets in filter medium, flexibility is poor, at high cost.
Therefore, how to make vent cabinet when in use, avoiding experimental gas from being condensed into drop and flow backwards and be back in vent cabinet,
It keeps the inner wall cleaning of wind cabinet all and the experimental facilities for being set to station will not be impacted, while improving filter device
Flexibility reduces filtering cost, is those skilled in the art's technical issues that need to address.
Utility model content
The purpose of the utility model is to provide a kind of anti-backflow Environmental-protective ventilating cabinet, it can be avoided experimental gas and steam be solidifying
Be polymerized to drop and flow backwards be back in vent cabinet, keep all wind cabinet inner wall cleaning and will not to be set to station experimental facilities
It impacts, while improving the flexibility of filter device, reducing filtering cost.
In order to solve the above technical problems, the utility model provides a kind of anti-backflow Environmental-protective ventilating cabinet comprising cabinet body, behaviour
Make platform and blower；The operating platform is set in the cabinet body and is separated into the inner space of the cabinet body and is located above
Operating cavity and underlying air draft chamber, and the operating platform is equipped with the through-hole for being connected to the operating cavity and the air draft chamber；
The cavity wall of the air draft chamber is equipped with air outlet, and the air outlet connect with the blower, and the air outlet and the blower it
Between be additionally provided with filter device.
Air outlet is located at the lower section of operating cavity, i.e. the anti-backflow Environmental-protective ventilating cabinet structure that is lower air draft, passes through blower
Effect reduce the pressure in air draft chamber so that the gas in operating cavity passes sequentially through through-hole, air draft chamber and from air draft
Mouth discharge.The acid gas and steam to volatilize in experimentation enters in adapter cavity, and acid drop is even condensed into adapter cavity,
The acidity drop will also be fallen under gravity into air draft chamber, and the drop in air draft chamber will not generate and flow back to operating cavity
Interior situation, in time clears up air draft chamber.
The structure of the anti-backflow Environmental-protective ventilating cabinet is simple, can avoid making the inner wall of operating cavity dirty, keep inside vent cabinet
Cleaning, and the experimental facilities for being set to operating platform will not be impacted.It can avoid experimental gas simultaneously (to generate in experimentation
Gas, such as acid gas, steam) be condensed into drop and flow back in vent cabinet and cause damages to the health of experimenter.
In addition, experimental gas filters after air outlet is discharged through filter device, atmosphere is then drained into, which sets
Experimental gas can be filtered by setting, to ensure that the experimental gas for being discharged into atmosphere does not pollute the environment.That is each is divulged information
Cabinet is all individually furnished with a filter device, which is served only for the experimental gas of filtering one vent cabinet discharge, the filtering
Device it is small in size, occupy little space, and specific setting can be carried out for single vent cabinet, it is using flexible, at low cost.
Optionally, the filter device includes waste gas absorption filler assembly.
Optionally, air duct is additionally provided between the blower and the air outlet, the air duct is fixedly arranged on the outer of the cabinet body
Side wall, the filter device are set in the air duct.
Optionally, the air duct is equipped with exhaust valve.
It optionally, further include air draft part, the air draft part is located in the operating cavity and forms adapter cavity, the air draft part
Top be equipped with the vent for being connected to the operating cavity and the adapter cavity, the bottom of the adapter cavity and the air draft chamber connect
It is logical.
Optionally, the lower part of the air draft part also is provided with vent, and the air draft hole density of air draft part lower part is less than
The air draft hole density on air draft part top.
Optionally, the top of the operating cavity is equipped with air inlet, the end sealing of the adapter cavity.
Optionally, the air draft part can be moved along the operating platform.
Optionally, the air draft part is the air draft plate in the operating cavity, the air draft plate and the operating cavity
Side wall is enclosed the adapter cavity.
Optionally, the air draft part is the air-exhausting duct in the operating cavity, and the cavity in the air-exhausting duct forms institute
State adapter cavity.
Detailed description of the invention
Fig. 1 is structural representation when anti-backflow Environmental-protective ventilating cabinet provided by the utility model embodiment is equipped with air draft plate
Figure；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is structural schematic diagram when anti-backflow Environmental-protective ventilating cabinet is equipped with air-exhausting duct；
Fig. 4 is the side view of Fig. 3.
In attached drawing 1-4, the reference numerals are as follows:
1- cabinet body, 11- operating cavity, 12- air draft chamber, 13- adapter cavity, 14- air inlet, 15- air outlet；2- operating platform,
21- through-hole；3- blower；41- air draft plate, 42- air-exhausting duct, 43- vent；5- cabinet door；6- filter device；The air duct 7-；8- air draft
Valve.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Fig. 1-4 is please referred to, Fig. 1 is that anti-backflow Environmental-protective ventilating cabinet provided by the utility model embodiment is equipped with air draft plate
When structural schematic diagram；Fig. 2 is the side view of Fig. 1；Fig. 3 is structural representation when anti-backflow Environmental-protective ventilating cabinet is equipped with air-exhausting duct
Figure；Fig. 4 is the side view of Fig. 3.
The utility model embodiment provides a kind of anti-backflow Environmental-protective ventilating cabinet, as shown in Figs 1-4, anti-backflow environmental protection
Type vent cabinet includes cabinet body 1, operating platform 2 and blower 3；Specifically, operating platform 2 is located in cabinet body 1 and by the inside of cabinet body 1
Space is separated into operating cavity 11 and air draft chamber 12, and operating cavity 11 is located at the top of operating platform 2, and air draft chamber 12 is located at operating platform
2 lower section, meanwhile, which is additionally provided with the through-hole 21 of connection operating cavity 11 and air draft chamber 12；The cavity wall of air draft chamber 12 is set
There is air outlet 15, air outlet 15 and blower 3 connect and be additionally provided with filter device 6 between air outlet 15 and blower 3.
In the present embodiment, air outlet 15 is set to the side wall of air draft chamber 12, the air outlet 15 can also be set to air draft certainly
The bottom wall of chamber 12, is not particularly limited herein.
That is, air outlet 15 is located at the lower section of operating cavity 11 in the present embodiment, i.e. the anti-backflow Environmental-protective ventilating cabinet
It is the structure of lower air draft, reduces the pressure in air draft chamber 12 by the effect of blower 3, so that the gas in operating cavity 11
It passes sequentially through through-hole 21, air draft chamber 12 and (gas flow direction is as shown by the arrow) is discharged from exhaust outlet.Experimentation
The acid gas and steam of middle volatilization enter in adapter cavity 13, and acid drop is even condensed into adapter cavity 13, the acidity drop
Also it will fall under gravity into air draft chamber 12, and the drop in air draft chamber 12 will not be generated and be flowed back in operating cavity 11
Situation in time clears up air draft chamber 12.
The structure of the anti-backflow Environmental-protective ventilating cabinet is simple, can avoid making the inner wall of operating cavity 11 dirty, keep in vent cabinet
Portion's cleaning, and the experimental facilities for being set to operating platform 2 will not be impacted.Experimental gas be can avoid simultaneously (in experimentation
The gas of generation, such as acid gas, steam) it is condensed into drop and flows back in vent cabinet and cause damages to the health of experimenter.
In addition, experimental gas (gas generated in experimentation, such as acid gas, steam) is through air outlet in the present embodiment
It is filtered after 15 discharges through filter device 6, then drains into atmosphere, the setting of the filter device 6 can be filtered experimental gas, with
Ensure that the experimental gas for being discharged into atmosphere does not pollute the environment.That is each vent cabinet is individually furnished with a filter device
6, which is served only for the experimental gas of filtering one vent cabinet discharge, small in size, the occupied space of the filter device 6
It is small, and specific setting can be carried out for single vent cabinet, it is using flexible, at low cost.
In the above-described embodiments, filter device 6 includes dedicated waste gas absorption filler assembly.The filter device 6 passes through special
The filtration of waste gas absorption filler assembly can eliminate generated smell in experimentation, while can remove experiment
The sour gas etc. being mixed in the process avoids being discharged into atmosphere and pollutes environment.It is selected corresponding thereto for different experiments
Waste gas absorption filler assembly, the specific ingredient of the waste gas absorption filler assembly is herein with no restrictions.
In the above-described embodiments, air duct 7 is additionally provided between blower 3 and air outlet 15, which is fixedly arranged on cabinet body 1
Lateral wall, and filter device 6 is set in the air duct 7, and the filter device 6 that is set as in the air duct 7 provides enough spaces, simultaneously
It is also not necessarily limited to the setting position of blower 3, is convenient for integrally-built arrangement.
In the above-described embodiments, air duct 7 is additionally provided with exhaust valve 8, and the feelings of a blower 3 are shared suitable for multiple vent cabinets
Condition, while applying also for certain vent cabinets equipped with sensing device, when operator close to when exhaust valve 8 aperture increase, row
Air quantity increases, and applicability is good.
In the above-described embodiments, which further includes air draft part, and air draft part is located in operating cavity 11 and forms adapter cavity
13, the top of air draft part is equipped with the vent 43 of connection operating cavity 11 and adapter cavity 13, the bottom of adapter cavity 13 and air draft chamber 12
Connection.Gas in experimentation positioned at 11 lower part of operating cavity is easy to be inhaled into air draft chamber 12 by through-hole 21, and evaporates into
The gas on 11 top of operating cavity can be inhaled into adapter cavity 13 by the vent 43 on air draft part top, then from adapter cavity 13
Bottom enters in air draft chamber 12, and is discharged from air outlet 15.
The setting of the air draft part may make the gas positioned at 11 top of operating cavity to be sucked into air draft chamber 12 and from air outlet
15 discharges, the gas residue for avoiding partial density lighter are not thorough in the top of operating cavity 11, discharge and invest operating cavity 11
The case where inner wall.
In the above-described embodiments, it also is provided with vent 43 in the lower part of air draft part, and the vent 43 of air draft part lower part is close
Degree is less than 43 density of vent on air draft part top, that is to say, that the lower part of air draft part also is provided with for will be in operating cavity 11
The vent 43 of gas sucking discharge, improves exhaust efficiency.Specifically, the vent 43 of the lower part of air draft part is away from its bottom and row
12 connectivity part of wind chamber is closer, and therefore, 43 density of vent of air draft part lower part is less than the vent 43 on air draft part top
Density, under such setting avoidable adapter cavity 13 only have lower part air inlet and from air draft chamber 12 discharge and the top of adapter cavity 13 not
The case where air inlet, avoids gas residue from being not thorough in the top of operating cavity 11, discharge.
In the above-described embodiments, the top of operating cavity 11 is equipped with air inlet 14, the end sealing of adapter cavity 13.At this point, behaviour
Make chamber 11 and be equivalent to set there are two air inlet 14, one is set to the top of operating cavity 11, another is set to the cabinet door 5 of operating cavity 11
Place can specifically select one using two air inlets 14 while can also using.It is poisonous and hazardous for that can generate during the experiment
When gas, cabinet door 5 can be closed, is only entered the wind, operator can be played anti-by being located at the air inlet 14 at 11 top of operating cavity
The effect of shield carries out situation in the outer observation experiment of cabinet door 5 convenient for operator's safety.
Specifically, the pressure in operating cavity 11 reduces after the gas in operating cavity 11 is inhaled into adapter cavity 13, this
When, airflow direction picture 1-4 in arrow direction shown in, entered the wind at air inlet 14, behaviour is taken away in the air flowing in operating cavity 11
Make the experimental gas in chamber 11, and the scheme of two air inlets 14 relative to the air inlet 14 only passed through at cabinet door 5 into
For the case where wind, increases at top and set an air inlet 14 again and can guarantee intake enough and can quickly will be in operating cavity 11
Gas discharge.When the top of operating cavity 11 is equipped with air inlet 14, the end sealing of adapter cavity 13 avoids outside air from top
Air inlet 14 is directly entered in adapter cavity 13 after entering, and does not take away the experimental gas in operating cavity 11.
In the above-described embodiments, air draft part can be moved along operating platform 2, that is to say, that and the specific location of air draft part is indefinite,
The size of adapter cavity 13, position can be adjusted as the case may be, air draft part can be arranged close to experimental facilities and in sky
Between allow in the case where can suitably increase the volume etc. of adapter cavity 13, can effectively promote ventilation efficiency and exhaust effect.
In addition, in the present embodiment, for adapter cavity 13 quantity with no restrictions, can be one, it is two or more,
It can specifically be set according to size, the size of adapter cavity 13 etc. of operating cavity 11.
In the above-described embodiments, two kinds of air draft parts are enumerated with no restrictions, in the present embodiment for the specific structure of air draft part,
One is the air draft plate 41 for being set as being located in operating cavity 11 by air draft part, another kind is to set air draft part to be located at operating cavity
Air-exhausting duct 42 in 11.
Specifically, as depicted in figs. 1 and 2, when air draft part is set as the air draft plate 41 being located in operating cavity 11, the air draft plate
41 are enclosed adapter cavity 13 with the side wall of operating cavity 11.That is, air draft plate 41 is equivalent to partition, divide out of operating cavity 11
It is separated out adapter cavity 13, which is equipped with said exhaust hole 43 so that the cavity of partition two sides is connected to.Specifically,
The structure of the air draft plate 41 and setting position with no restrictions, as the cross section of the air draft plate 41 can be with U-shaped structure, V-type knot
Structure or only "-" type structure, the angle between any side wall or two side walls in the partition and operating cavity 11 enclose
Adapter cavity 13 is formed, when setting air draft plate 41 for air draft part, materials are convenient, overall structure is simple.It specifically can be by changing
Position and the size of adapter cavity 13 can be changed in the fixation position of operating platform 2 by becoming air draft plate 41, easy to operate.
As shown in Figure 3 and Figure 4, when air draft part being set as the air-exhausting duct 42 being located in operating cavity 11, in the air-exhausting duct 42
Cavity forms above-mentioned adapter cavity 13, and the tube wall of the air-exhausting duct 42 is equipped with said exhaust hole 43, specifically, the air-exhausting duct 42
Without limitation, such as the radial section of the air-exhausting duct 42 can be round, triangle or polygon for structure and position.It will
The scheme that air draft part is set as air-exhausting duct 42 can simplify overall structure, simplify processing technology.
Specifically, 21 grafting of through-hole or flanged joint of air-exhausting duct 42 and operating platform 2.Specifically, air-exhausting duct 42
Lower part is equipped with ring flange, can be fixed by ring flange and operating platform 2 by the air-exhausting duct 42, connects more stable；Or may be used also
The lower part of air-exhausting duct 42 is equipped with block piece, directly the bottom of air-exhausting duct 42, which is plugged in through-hole 21, (can be and be plugged in one
In a through-hole 21, it is also possible to be equipped with multiple plug connectors in the bottom of air-exhausting duct 42 to be inserted into multiple and different through-holes 21 admittedly
It is fixed) block piece and the upper surface of through-hole 21 are abutted, plug connection operation easy to disassemble.It is, of course, also possible to pass through other
Mode fixes the air-exhausting duct 42, such as by air-exhausting duct 42 with operating platform 2 by being welded and fixed, and flanged joint and plug connection
So that air-exhausting duct 42 is detachably connected with operating platform 2, convenient for the disassembling operations to air-exhausting duct 42, convenient for cleaning to it.
Since operating platform 2 is equipped with the through-hole 21 between multiple connection operating cavities 11 and air draft chamber 12, and air-exhausting duct 42 can
It is connect with through-hole 21, therefore, the position of air-exhausting duct 42 is adjustable, specifically during the experiment, can be according to the size of experimental facilities
The position of air-exhausting duct 42 is set with placement position, i.e., air-exhausting duct 42 is position-movable, is moved to close to experimental facilities
Position, convenient for experimental gas to be discharged, flexibility is good.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of anti-backflow Environmental-protective ventilating cabinet, which is characterized in that including cabinet body (1), operating platform (2) and blower (3)；
The operating platform (2) is set in the cabinet body (1) and is separated into the inner space of the cabinet body (1) and is located above
Operating cavity (11) and underlying air draft chamber (12), and the operating platform (2) is equipped with and is connected to the operating cavity (11) and institute
State the through-hole (21) of air draft chamber (12)；
The cavity wall of the air draft chamber (12) is equipped with air outlet (15), and the air outlet (15) connect with the blower (3), and described
Filter device (6) are additionally provided between air outlet (15) and the blower (3).
2. anti-backflow Environmental-protective ventilating cabinet according to claim 1, which is characterized in that the filter device (6) includes useless
Aspiration filler assembly.
3. anti-backflow Environmental-protective ventilating cabinet according to claim 1, which is characterized in that the blower (3) and the outlet air
It is additionally provided with air duct (7) between mouth (15), the air duct (7) is fixedly arranged on the lateral wall of the cabinet body (1), the filter device (6)
In the air duct (7).
4. anti-backflow Environmental-protective ventilating cabinet according to claim 3, which is characterized in that the air duct (7) is equipped with exhaust valve
(8)。
5. anti-backflow Environmental-protective ventilating cabinet according to claim 1-4, which is characterized in that it further include air draft part,
The air draft part is located in the operating cavity (11) and is formed adapter cavity (13), and the top of the air draft part, which is equipped with, is connected to the behaviour
Make the vent (43) of chamber (11) and the adapter cavity (13), the bottom and the air draft chamber (12) of the adapter cavity (13) are even
It is logical.
6. anti-backflow Environmental-protective ventilating cabinet according to claim 5, which is characterized in that the lower part of the air draft part also is provided with
Vent (43), and vent (43) density of air draft part lower part is close less than the vent (43) on air draft part top
Degree.
7. anti-backflow Environmental-protective ventilating cabinet according to claim 5, which is characterized in that set at the top of the operating cavity (11)
Have air inlet (14), the end sealing of the adapter cavity (13).
8. anti-backflow Environmental-protective ventilating cabinet according to claim 5, which is characterized in that the air draft part can be along the operation
Platform (2) is mobile.
9. anti-backflow Environmental-protective ventilating cabinet according to claim 5, which is characterized in that the air draft part is set on the behaviour
Make the air draft plate (41) in chamber (11), the air draft plate (41) and the side wall of the operating cavity (11) are enclosed the adapter cavity
(13)。
10. anti-backflow Environmental-protective ventilating cabinet according to claim 5, which is characterized in that the air draft part is set on described
Air-exhausting duct (42) in operating cavity (11), the cavity in the air-exhausting duct (42) form the adapter cavity (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060684.2U CN209363245U (en) | 2019-01-14 | 2019-01-14 | A kind of anti-backflow Environmental-protective ventilating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060684.2U CN209363245U (en) | 2019-01-14 | 2019-01-14 | A kind of anti-backflow Environmental-protective ventilating cabinet |
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| Publication Number | Publication Date |
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| CN209363245U true CN209363245U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920060684.2U Active CN209363245U (en) | 2019-01-14 | 2019-01-14 | A kind of anti-backflow Environmental-protective ventilating cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790227A (en) * | 2020-07-16 | 2020-10-20 | 福州市鸿生建材有限公司 | Environment-friendly regeneration system of mixing plant |
-
2019
- 2019-01-14 CN CN201920060684.2U patent/CN209363245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790227A (en) * | 2020-07-16 | 2020-10-20 | 福州市鸿生建材有限公司 | Environment-friendly regeneration system of mixing plant |
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