CN109530382A - Vent cabinet - Google Patents
Vent cabinet Download PDFInfo
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- CN109530382A CN109530382A CN201910073733.0A CN201910073733A CN109530382A CN 109530382 A CN109530382 A CN 109530382A CN 201910073733 A CN201910073733 A CN 201910073733A CN 109530382 A CN109530382 A CN 109530382A
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- 238000007664 blowing Methods 0.000 claims abstract 2
- 230000001681 protective effect Effects 0.000 claims 2
- 210000000746 body region Anatomy 0.000 claims 1
- 239000011796 hollow space material Substances 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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Abstract
The present invention, which provides, a kind of can reduce air conditioning energy consumption, inhibits the overflow of harmful substance in working chamber and installation cost is low and vent cabinet that the consistency of product quality is high, it include: cabinet body, the inner cavity of the cabinet body constitutes working chamber, and antetheca forms the open open front of oriented indoor environment；The mend wind passage of air-makeup system, the air-makeup system and building connects, and mends wind to working chamber；And exhaust system, the connection of the air exhaust passage of the exhaust system and building, it is discharged by the air for entering working chamber by open front and by the air that air-makeup system enters working chamber from working chamber, air-makeup system respectively has at least one wind-supplying mouth in the upper and lower part of cabinet body, the wind-supplying mouth is towards blowing in working chamber, top module is equipped with above cabinet body, the benefit wind blower of air-makeup system is installed in top module and mends air valve, and the exhaust fan and valve for air exhaust of exhaust system, wind blower is mended in connection and each mend wind passage of benefit air valve and each wind-supplying mouth communicates with each other.
Description
The application is the divisional application of the application for a patent for invention of entitled " vent cabinet ", and parent application number is
201510169620.2 applying date 2015.04.10, publication No. is 106140769 A of CN.
Technical field
The present invention relates to a kind of vent cabinet more particularly to a kind of air-replenishing type ventilating cabinets.
Background technique
Vent cabinet can generally be described as one for capturing, accommodate and scavenge, pernicious gas and particulate matter
Ventilation operation space.Most of traditional vent cabinet, which is used from open front place of vent cabinet to the working chamber of vent cabinet, to be sent into largely
Surrounding air, while air draft carries out the receiving and processing of harmful substance in air in working chamber with powerful blower.
Under the design concept of tradition ventilation cabinet, the air quantity being sent into from open front is higher, control of the vent cabinet to harmful substance in air
It is more effective with discharge function, it is therefore desirable to which that heating ventilation air-conditioning system by building is to using the space of the vent cabinet for example to test
Room fills into large quantity of air to replace the surrounding air for being sent into vent cabinet from open front.Air due to filling into laboratory belongs to supply
For a part of laboratory environment air, it must be processed to identical surrounding air degree to ensure laboratory work environment
Comfortableness and security, therefore, the use of tradition ventilation cabinet generally result in the building where laboratory etc. generate it is very big
Energy consumption.In addition, unpredictable and inconsistent air flow, such as the vortex type air near exhaust outlet and open front
Tissue can frequent occurrence.In this case, regardless of the air velocity being sent into from open front is how many, the air body in working chamber
If being the risk for the air overflow for having sinuous flow and vortex to will result in working chamber, prestige is constituted to the health and safety of experimenter
The side of body.Therefore, pole needs new vent cabinet design structure and running technology to reduce energy consumption and reduce overflowing for harmful substance in working chamber
Flow risk.
The novel energy-saving environment-friendly type vent cabinet of vent cabinet in the market is air-replenishing type ventilating cabinet at present.By in the upper of cabinet body
A wind-supplying mouth is arranged in side or lower section, and the work that compensation current is blown into vent cabinet is obtained from the pneumatic Force system of benefit of building
The air conditioning energy consumption of building caused by as mending wind has been saved in chamber, such design to a certain extent.However, existing is novel logical
The single benefit general mood stream of wind cabinet can not set up stable air flow in the working chamber of vent cabinet, so air
Sinuous flow and eddy current problem are still unresolved, and the overflow risk for endangering experimenter's health and safety still exists.In addition, existing market
On vent cabinet rely on the unified air-makeup system of building and exhaust system and obtain power, if there are multiple vent cabinets while simultaneously
It exercises and uses, row mends air quantity and can not achieve according to the adjusting of individual character needed for service condition, so will also result in the higher result of energy consumption.
Also, during installation and debugging, vent cabinet and its control system are usually to use components in bulk interim assembled at the scene, because
This has that installation cost is high, the consistency of product quality is poor.
Summary of the invention
Problem to be solved by the invention
The present invention is made into view of the above problems, it is intended that providing one kind can reduce air conditioning energy consumption, inhibits work
The overflow of intracavitary harmful substance and installation cost is low and vent cabinet that the consistency of product quality is high.
The means used to solve the problem
To solve the above-mentioned problems, vent cabinet of the invention, comprising: the inner cavity of cabinet body, the cabinet body constitutes working chamber, and preceding
Wall forms the open open front of oriented indoor environment；The mend wind passage of air-makeup system, the air-makeup system and building connects, to institute
It states working chamber and mends wind；And exhaust system, the air exhaust passage of the exhaust system and building connect, will by the open front into
Enter the air of the working chamber and is discharged by the air that the air-makeup system enters the working chamber from the working chamber, it is described
Air-makeup system respectively has at least one wind-supplying mouth in the upper and lower part of the cabinet body, and the wind-supplying mouth is towards sending in the working chamber
Wind, the cabinet body top are equipped with top module, the benefit wind blower and benefit of the air-makeup system are equipped in the top module
The exhaust fan and valve for air exhaust of air valve and the exhaust system connect the benefit wind blower and the benefit air valve
It communicates with each other with each mend wind passage of each wind-supplying mouth.
Using the above structure, since respectively there is at least one wind-supplying mouth in the top and the bottom of cabinet body, it can not only reduce
The air quantity being sent into from open front, to reduce air conditioning energy consumption, and since the setting of multiple wind-supplying mouths can be built-in in working chamber
Stable plug-type air flow is found, therefore greatly reduces the risk of the air overflow in working chamber.In addition, due to logical
Wind cabinet itself has exhaust fan and valve for air exhaust and mends wind blower and mend air valve, therefore can be according to such as vent cabinet
Whether the distance of the total output blower relative to building, operator are located at the actual conditions such as setting regions, flexible design row
Wind air quantity and benefit wind air quantity, further help in reduction energy consumption.Also, since above-mentioned blower and valve etc. are all integrated in vent cabinet
On possessed top module, there is no need to carry out on-site consolidation or carry out Secondary Design to the ventilating system of building, thus
It can be realized the reduction of installation cost.Further, due to the modularized design being a highly integrated, it can guarantee product quality
Consistency.
In addition, it is preferable that the left and right sidewall of the cabinet body is hollow double-layer structure, the benefit wind positioned at cabinet body top
Channel is connected to the mend wind passage for being located at cabinet body lower part by the hollow space of the left and right sidewall.
Using the above structure, the mend wind passage positioned at cabinet body top and the bottom is made to communicate with each other by the hollow space of side wall, because
This has both saved space without in addition setting connecting pipe, in turn simplifies process of the user in installation vent cabinet for the first time.
In addition, it is preferable that top of the exhaust system in the cabinet body and the position of the rear wall close to the cabinet body
With air draft region, which extends in the entire left and right width direction of the cabinet body, and with the exhaust fan and
The valve for air exhaust connection.
Using the above structure, since air draft region is located at the position on cabinet body top and close cabinet body rear wall, be conducive to
The formation of above-mentioned plug-type air flow.In addition, since air draft region extends in the entire left and right width direction of cabinet body,
Therefore it can be formed about air eddy to avoid the top exhaust outlet in working chamber, and being includes that aftermentioned base cabinet air exhaust passage exists
The connection of interior entire exhaust system provides possibility.
In addition, it is preferable that each wind-supplying mouth extends respectively along the left and right width direction of the working chamber, Duo Gesuo
Stating includes: the first wind-supplying mouth positioned at the top of the open front in wind-supplying mouth；Second positioned at the lower section of the open front mends
Air port；And the third wind-supplying mouth in the outside positioned at the top and antetheca of the cabinet body, the third wind-supplying mouth is described in
It blows in the working chamber and lower section of the cabinet body.
Using the above structure, be conducive to the formation of above-mentioned plug-type air flow.Also, since wind-supplying mouth is along work
The left and right width direction for making chamber extends, therefore can equably send out air, prevents the formation of turbulent flow.In addition, since third is mended
Air port is dried downwards, which is located just at the position of breathing of operator, therefore can further reduction operation people
The risk of member's sucking harmful substance, and the wind blown out downwards forms " air barrier ", can play in buffering working chamber
With the effect of cabinet external environment air, it effectively prevent overflow risk.
In addition, it is preferable that the working chamber has to incline rearwardly and upwardly from first wind-supplying mouth towards the air draft region
The sloping top walls tiltedly extended.
Using the above structure, it can prevent from forming vortex at the top of working chamber, work intracavity gas can be made from above-mentioned first
Gas supplementing opening is slowly uniformly climbed along sloping top walls to above-mentioned exhaust zone domain.
In addition, it is preferable that deflector is equipped in the working chamber, which close to the rear wall uprightly sets
It sets, and upper end extends towards the air draft region, is equipped with multiple through holes, multiple through hole in the lower part of the deflector
It is distributed in the entire left and right width direction of the deflector.
Using the above structure, the production for being conducive to the gas in working chamber being oriented to above-mentioned exhaust gas region and avoiding air-swirl
It is raw, also, since the through hole on deflector is distributed in the entire left and right width direction of deflector, help to provide whole
The almost the same continuous air draft in the wide face of a working chamber.
In addition, it is preferable that be equipped at least one base cabinet in the lower section of the cabinet body, the inner cavity of the base cabinet is arranged by base cabinet
Wind channel and the air draft regional connectivity, the base cabinet air exhaust passage are located at the hollow of at least one party's side wall in the left and right sidewall
In part, and vertically extended close to the rear wall.
Using the above structure, the pernicious gas that can will be generated in base cabinet due to storage volatile reagent or toxic material
Discharge is outdoor.Also, since base cabinet air exhaust passage is arranged in the hollow space of side wall, space is not only saved, but also simplify
Process of the user in installation vent cabinet for the first time.
In addition, it is preferable that be respectively equipped with flow deflector on each wind-supplying mouth.
Using the above structure, turbulent flow can be made to minimize, it is ensured that mend general mood stream and uniformly slowly blow out along direction initialization.
In addition, it is preferable that second wind-supplying mouth is externally provided with the protective grille for surrounding second wind-supplying mouth, the third
Wind-supplying mouth is externally provided with the protective grille for surrounding the third wind-supplying mouth.
Using the above structure, not only can effectively reduce wind-supplying mouth material deterioration inside, but can further help bottom mend wind air at
Working chamber is filled into for laminar flow, can also prevent sundries from entering wind-supplying mouth.
In addition, it is preferable that the benefit wind blower and exhaust fan are respectively adjustable power type blower, the benefit air valve
Be respectively aperture type variable valve with valve for air exhaust, the vent cabinet is additionally provided with: sliding window, the sliding window can be along the open fronts
Sliding, for adjusting the open area of the open front；Position sensor, the position sensor are located in the top module,
For detecting the position of the sliding window；The work is arranged in close to the open front for air velocity transducer, the air velocity transducer
Make on the inner wall of chamber, for detecting the speed for entering the air of the working chamber from the open front；Infrared detector, this is infrared
Detector is set to the antetheca of the top module, for detecting whether operator is in setting regions；And control unit,
The control unit is located in the top module, with the position sensor, the air velocity transducer, the infrared detector,
The benefit wind blower is connected with the benefit air valve and the exhaust fan with the valve for air exhaust, and is based on institute's rheme
The detection information of sensor, the air velocity transducer, the infrared detector is set to the power for mending wind blower and the benefit
The aperture of the power and the valve for air exhaust of the aperture of air valve and the exhaust fan is adjusted.
It using the above structure, can be according to the actual use situation of vent cabinet itself, using automatic control system to benefit wind wind
The power and aperture of machine and benefit air valve and exhaust fan and valve for air exhaust are automatically adjusted, and are not only able to reduce air-conditioning
Energy consumption, and features simple structure save space, and greatly reduce the installation cost and maintenance cost of vent cabinet.
Detailed description of the invention
Fig. 1 is the main view of the vent cabinet of better embodiment of the invention.
Fig. 2 is the rear cross sectional view of the vent cabinet of better embodiment of the invention.
Fig. 3 is the perspective view of the vent cabinet of better embodiment of the invention.
Fig. 4 is the air-flow guiding figure of the vent cabinet of better embodiment of the invention.
Fig. 5 is the air-flow guiding figure of the air-makeup system of the vent cabinet of better embodiment of the invention.
Fig. 6 is the air-flow guiding figure of the exhaust system of the vent cabinet of better embodiment of the invention.
Symbol description
100 cabinet bodies
102 working chambers
103 left and right sidewalls
104 roofs
105 base cabinets
106 rear walls
108 bottom walls
109 sloping top walls
110 open fronts
201 first mend wind passages
202 second mend wind passages
203 third mend wind passages
211 mend wind blower
212 mend air valve
311 exhaust fans
312 valve for air exhausts
313 gas gathering masks
314 deflectors
315 diversion trenches
335 air draft regions
400 top modules
801 air velocity transducers
802 position sensors
803 infrared detectors
804 sliding windows
The first wind-supplying mouth of A1
The second wind-supplying mouth of A2
A3 third wind-supplying mouth
A4 mends the total mouth of wind
B1, B2 base cabinet air exhaust passage
The total mouth of B4 air draft
Specific embodiment
Presently in connection with attached drawing, better embodiment of the invention is discussed in detail.Although description of the invention will in conjunction with this compared with
Good embodiment is introduced together, but this feature for not representing the invention is only limitted to the embodiment.Implement on the contrary, combining
Mode make the purpose that invention is introduced be in order to cover based on claim of the invention and be possible to the other selections extended or
Transformation.In order to provide to depth understanding of the invention, be described below in will include many concrete details.The present invention can not also
Implemented using these details.In addition, in order to avoid confusion or obscure emphasis of the invention, some details will in the de-scription by
It omits.
In addition, "upper", "lower", "left", "right", "top", "bottom" used in the following description, are based on the ventilation
Cabinet by laboratory experimenter's use when spatial position and define, should not be construed as limiting the invention.
As shown in Figures 1 to 4, the vent cabinet of better embodiment of the invention includes cabinet body 100, the inner cavity of the cabinet body 100
Working chamber 102 is constituted, which includes left and right sidewall 103, roof 104, rear wall 106, bottom wall 108 and before being formed in
Wall to the open open front 110 of indoor environment.In the present embodiment, the lower section of cabinet body 100 is set there are two base cabinet 105, should
Reagent and material needed for base cabinet 105 can be used for storing experiment.
The distinctive top module 400 of vent cabinet of the present invention is equipped in the top of cabinet body 100.It is installed inside top module 400
Have: the benefit wind blower 211 of power adjustable section, the aperture in the air-flow direction downstream side for mending wind blower 211 are adjustable
Mend opening for air valve 212, the exhaust fan 311 of power adjustable section and the air-flow direction downstream side in exhaust fan
Spend adjustable valve for air exhaust 312.Above-mentioned benefit wind blower 211 mends air valve 212 and aftermentioned each wind-supplying mouth, mend wind passage
Deng composition air-makeup system, which is connected by mending the mend wind passage of the total mouth A4 of wind and building, is mended into working chamber 102
Wind.Said exhaust blower 311, valve for air exhaust 312 and aftermentioned air draft region, air exhaust passage etc. constitute exhaust system, the row
Wind system is connected by the air exhaust passage of the total mouth B4 of air draft and building, and the air of working chamber 102 will be entered by open front 110
It is discharged with the air for entering working chamber 102 by above-mentioned air-makeup system from working chamber 102.
Fig. 4 is the air-flow guiding figure of the vent cabinet of present embodiment, and Fig. 5 is the air-makeup system of the vent cabinet of present embodiment
Air-flow be oriented to figure.As shown in Figure 4,5, the first wind-supplying mouth A1, first wind-supplying mouth A1 are equipped in the top of above-mentioned open front 110
It is designed to the semi-cylindrical shape extended along the left and right width direction of working chamber 102, semi-cylindrical is towards working chamber 102
Towards rear.On first wind-supplying mouth A1, equipped with multiple flow deflectors along the axially extending of semi-cylindrical and circumferentially arranged
221 (illustrating in such as Fig. 5).It is equipped with the first mend wind passage 201 across cabinet body or so width direction on the top of cabinet body, this first
Mend wind passage 201 connects above-mentioned benefit air valve 212 and above-mentioned first wind-supplying mouth A1.First mend wind passage 201 is close to work
The one side for making chamber 102 designs for skew wall.This skew wall can be evenly distributed on the air moved in the first mend wind passage 201, and by its
Wind speed reduces.In this way, mending wind blower 211 by operating, it is uniform that the first wind-supplying mouth A1 along the radial direction of semi-cylindrical will supplement air
It is slowly sent into the working chamber 102 of vent cabinet.Although sending the air-flow to the first wind-supplying mouth A1 still to have centainly from wind blower 211 is mended
The ratio (15% or less about) of turbulent flow, but the setting of flow deflector 221 can separate turbulent flow, it is ensured that it is blown into from the first wind-supplying mouth A1
The air-flow of working chamber 102 is laminar condition.
It is equipped with the second wind-supplying mouth A2 in the lower section of open front 110, second wind-supplying mouth A2 is designed to along working chamber 102
1/4 cylindrical shape that left and right width direction extends, 1/4 cylindrical surface is towards working chamber 102 i.e. towards back upper place.This second
On wind-supplying mouth A2, equipped with multiple flow deflectors 222 (illustrating in such as Fig. 5) along the axially extending of 1/4 cylindrical surface and circumferentially arranged.
It is equipped with the second mend wind passage 202 across cabinet body or so width direction in the lower part of cabinet body, which will come from
The air for mending wind blower 211 is conveyed to the second wind-supplying mouth A2, therefore compensation current can be made to blow along the radially uniform of 1/4 cylindrical surface
Enter working chamber.In addition, the flow deflector in this region has because frequently since the second wind-supplying mouth A2 is located at the workspace of vent cabinet
Using and caused by consume risk.Therefore, in the present embodiment, it is externally provided in the second wind-supplying mouth A2 and surrounds second wind-supplying mouth
The protective grille (not shown) of A2 come prevent flow deflector 222 consume risk.Protective grille can also help to guide second simultaneously
The benefit general mood stream of wind-supplying mouth A2, and the gas for helping to send out from the second wind-supplying mouth A2 becomes laminar condition and is filled into working chamber
102, in addition, protective grille can also play the role of preventing sundries from entering the second wind-supplying mouth A2.
On the top of cabinet body 100 and the front side of above-mentioned antetheca is equipped with third wind-supplying mouth A3, and third wind-supplying mouth A3 is designed
At along working chamber 102 left and right width direction extension 1/4 cylindrical shape, 1/4 cylindrical surface towards working chamber 102 be direction
The back lower place.On third wind-supplying mouth A3, the flow deflector that along the axially extending of cylindrical surface and is circumferentially arranged equipped with multiple 1/4
223 (illustrating in such as Fig. 5).Be equipped with the third mend wind passage 203 across cabinet body or so width direction on the top of cabinet body, this
Aftermentioned sliding window 804 can be inserted between three mend wind passages 203 and above-mentioned first mend wind passage 201, the third mend wind passage 203
Be connected to around the sliding window 804 with above-mentioned first mend wind passage 201, so in the future the air of self-complementary wind blower 211 to this
Three wind-supplying mouth A3 conveying.The third mend wind passage 203 is designed far from the one side of cabinet body for skew wall, has both been uniformly distributed third benefit
The air moved in wind channel 203, and reduce wind speed.In the case where mending blower 211 and acting on, supplement air can be along third wind-supplying mouth A3
Radially uniform slowly blow out.Third wind-supplying mouth A3 not only blows towards the working chamber 102 of cabinet body 100, and towards cabinet body
100 lower section air-supply, which is located just at the position of breathing of experimenter, therefore can further lower experiment people
The risk of member's sucking harmful substance.Also, the wind blown out downwards from third wind-supplying mouth A3 forms " air barrier ", plays slow
The effect in working chamber 102 with cabinet external environment air is rushed, overflow risk is effectively prevent.In the present embodiment, it is mended in the third
It also is provided with surrounding the protective grille of third wind-supplying mouth A3 outside the A3 of air port, which, which equally plays, prevents flow deflector from consuming,
Guide the effect mended general mood stream and prevent sundries from entering wind-supplying mouth.
As shown in figure 5, the left and right sidewall 103 of cabinet body 100 is hollow double-layer structure, above-mentioned first positioned at cabinet body top is mended
Wind channel 201 is connected to the second mend wind passage 202 for being located at cabinet body lower part by the hollow space 225 of left and right sidewall 103, by
This, so that all mend wind passages of present embodiment communicate with each other, so that the benefit air quantity of vent cabinet can be by the function of benefit wind blower 211
Rate and the unified regulation of the aperture for mending air valve 212.
As shown in Figure 2,4, it is equipped on the top of cabinet body and close to the position of above-mentioned rear wall 106 across the entire of cabinet body 100
The gas gathering mask 313 of left and right width direction.The upper end of the gas gathering mask 313 is connect with exhaust fan 311, and Inner Constitution is in cabinet body
The air draft region 335 extended in 100 entire left and right width direction.By the way that such air draft region 335 is arranged, can to avoid
The top exhaust outlet of working chamber 102 is formed about air eddy, and is the entire row including aftermentioned base cabinet air exhaust passage
The connection of wind system provides possibility.
As shown in figure 4, in the present embodiment, also having from above-mentioned first wind-supplying mouth A1 upward in above-mentioned working chamber 102
The sloping top walls 109 that air draft region 335 obliquely extends rearwardly and upwardly are stated, which forms for working chamber 102
Part surrounds, and the two sides of sloping top walls 109 and the left and right sidewall 103 of cabinet body connect, and bottom end and the first wind-supplying mouth A1 upper limb connect
It connects, top and roof 104 connect.Due to the work of the high exhaust air rate of exhaust blower, the inner top of traditional vent cabinet working chamber is frequent
It will form air-swirl, be discharged toxic and harmful gas can not, the design of sloping top walls can break the extension of vortex, cooperation
The laminar winds that first wind-supplying mouth A1 of cabinet inner top is sent out, can be such that gas in cabinet slowly uniformly climbs along skew wall to air draft region.
Angle and the shape design of this sloping top walls 109 are to help to control and prevent in working chamber 102 nuisance in air
The overflow of matter, and reduce a possibility that air forms vortex near the air draft region 335 at top.In addition, as described in Fig. 1,4,
In above-mentioned working chamber 102, in the position close to above-mentioned rear wall 106, it is also vertically equipped with deflector 314, the upper end of the deflector 314
Portion extends towards said exhaust region 335, is equipped with multiple through holes in the lower part of the deflector 314, multiple through hole is being led
It is distributed in the entire left and right width direction of flowing plate 314, there are diversion trenches 315 between deflector 314 and above-mentioned bottom wall 108.It is logical
The setting of the deflector 314 with through hole is crossed, the air-stable in working chamber 102 can be oriented to top air draft region
335 and avoid the generation of air-swirl, and the continuous air draft that the wide face that is able to carry out entire working chamber 102 is almost the same.
Arrow in Fig. 4 shows the type of flow of the air when entering, passing through and being discharged the cabinet body of vent cabinet.Mending wind
Under the action of blower 211 and benefit air valve 212, the air-makeup system that general mood stream enters vent cabinet from total wind-supplying mouth A4 is mended, is flowed to
Each wind-supplying mouth A1, A2 and A3, and then working chamber 102 uniformly is slowly entered, meanwhile, a part of surrounding air also can be perpendicular to preceding
The angle of opening 110 enters working chamber 102 from open front 110.After these air enter working chamber 102, as shown by arrows, substantially
On can uniformly be pulled to and by the air draft region 335 at top, deflector 314 and diversion trench 315, then at the top of cabinet body
Total exhaust outlet B4 is discharged with arrow direction.Those skilled in the art can will be apparent that: the change of air flow area will cause air
The fluctuation of flowing velocity.Therefore, from the air that open front 110 enters when entering the big region of working chamber 102, wind speed can be
It reduces；When near the air draft region 335 that these air continue to top, wind speed be will increase.The fluctuation of this wind speed helps
System is pushed and pulled in one consistent, stable benefit wind of maintenance and air draft.This push-pull system can be by the air in cabinet with same
The mode of step displacement is mobile, the turbulent flow risk of air in required benefit air quantity and cabinet can largely be lowered in this way.In addition, this implementation
The setting of push-pull system that mode uses and sloping top walls 109 can be the risk of the formation of air sinuous flow and vortex in cabinet most
Smallization, above working chamber 102 and the air tissue of open front 110.Therefore, thus caused by push-pull system
Be displaced the mobile system of air can more effectively in control cabinet in air harmful substance from a possibility that open front overflow.
Fig. 6 is the air-flow guiding figure of the exhaust system of the vent cabinet of present embodiment.For two base cabinets that vent cabinet is discharged
The toxic and harmful gas generated in 105 due to placing working reagent or material, as shown in Figure 2,6, the ventilation of present embodiment
The rear portion of two base cabinets 105 of cabinet is respectively arranged with base cabinet air exhaust passage B1 and B2.Base cabinet air exhaust passage B1 and B2 are respectively provided at
It in the hollow space of corresponding left and right sidewall 103, and is vertically extended close to above-mentioned 106 ground of rear wall, by corresponding base cabinet 105
The corresponding side in inner cavity and the air draft region 335 in the gas gathering mask 313 at the top of above-mentioned cabinet body be connected to.In this way, in exhaust fan
Under the action of 311, the gas in base cabinet 105 can be drawn into base cabinet air exhaust passage B1 and B2, and in air draft region 335 and working chamber
The air-flow mixing for being pulled or pushed to air draft region 335 in 102, is discharged to the air exhaust passage of building from total exhaust outlet B4 together
In.It can be seen that similar air-makeup system, each air exhaust passage of vent cabinet of the present invention is also associated with each other, then total exhaust air rate can be by
The aperture control of the power and valve for air exhaust 312 of exhaust fan 311.
Further, the vent cabinet of present embodiment can cooperate control system to use as air-volume-variable fume hood, before
The inlet of the air of opening can flexibly be changed in very large range by sliding the change of window position.Specifically, such as
Fig. 3, shown in 4, in the present embodiment, vent cabinet is additionally provided with: sliding window 804, which can be along above-mentioned open front 110
Sliding, for adjusting the open area of the open front 110；Position sensor 802, the position sensor 802 are located at above-mentioned top
In module 400, for detecting the position of above-mentioned sliding window 804；Air velocity transducer 801, the air velocity transducer 801 is before above-mentioned
It is open on the inner surface of a side that 110 ground are arranged in above-mentioned left and right sidewall 103, enters for detecting from above-mentioned open front 110
The speed (hereinafter referred to as face wind speed) of the air of above-mentioned working chamber 102；Infrared detector 803, the infrared detector 803 setting
In the antetheca of above-mentioned top module 400, whether setting regions is in for test experience personnel；And control unit (is not schemed
Show), which is located in above-mentioned top module 400, with above-mentioned position sensor 802, air velocity transducer 801, infrared spy
It surveys device 803, above-mentioned benefit wind blower 211 and mends air valve 212 and exhaust fan 311 and the connection of valve for air exhaust 312, and base
In above-mentioned position sensor 802, air velocity transducer 801 and infrared detector 803 detection information to above-mentioned benefit wind blower 211
It is adjusted with the respective power and aperture for mending air valve 212 and exhaust fan 311 and valve for air exhaust 312.
Above-mentioned infrared detector 803 can perceive the working region whether experimenter is in setting, if detecting nobody
The sliding window 804 of vent cabinet is not off in workspace, then control unit can be filled to the driving of sliding window 804
Transmission signal (not shown) is set, sliding window 804 is closed, reduces the air for entering working chamber from indoor environment, reduces laboratory energy
Consumption；In addition, the air quantity that enters of vent cabinet is only provided by each wind-supplying mouth A1~A3, the exhaust air rate of vent cabinet after sliding window 804 is closed
It reduces simultaneously, therefore the system energy consumption of vent cabinet also decreases.
On the other hand, when the aperture of sliding window 804 changes, above-mentioned control unit receives the hair of position sensor 802
The sliding window opening value sent, calculating maintenance face wind speed according to the following formula is vent cabinet exhaust air rate required for preset value:
Q=V*S*3600 (1)
Q is the exhaust air rate of the working chamber 102 of vent cabinet, unit m3/h；V is the preset value of face wind speed, unit m/s；S
For the area of ventilation-sectional area, that is, open front 110 of sliding window 804, unit m2, wherein
S=L*H (2)
(sliding window 804 is to move left and right to the width (sliding window 804 is when moving up and down) or height that L is sliding window 804
When) it is fixed value；And H is the opening value for the sliding window 804 that above-mentioned position sensor 802 detects.
Then, control unit is according to the exhaust air rate of the working chamber 102 for the vent cabinet being calculated, and combines default face wind speed
The air draft numerical quantity of base cabinet the air exhaust passage B1 and B2 of lower base cabinet 105 adjust the power and valve for air exhaust 312 of exhaust fan 311
Aperture, to change the exhaust air rate of entire vent cabinet.It can also adjust according to above-mentioned each detected value and calculated value and mend wind blower
211 power and the aperture for mending air valve 212, to change the benefit air quantity of air-makeup system.
When multiple vent cabinets are connected in parallel in ventilation system for buildings, service condition institute of each vent cabinet according to itself
The benefit exhaust air rate needed can also be not quite similar.In parallel air flow system, system of distance total output blower is closer, can supplement or arrange
Throughput out is bigger；System of distance total output blower is remoter, and due to pressure drop and loss, the throughput that can be supplemented or be discharged is got over
It is small.If therefore the control of valveless door, each vent cabinet only lean on total output blower to can not achieve the individual character tune depending on service condition
Section.To realize above-mentioned target, now novel environment friendly air-volume-variable fume hood majority in the market is equipped with expensive venturi valve.
In the present embodiment, it as noted previously, as vent cabinet itself is integrated with top module 400, and is installed in the top module 400
There are the exhaust fan 311 that can adjust power and aperture according to the actual situation and valve for air exhaust 312 and mends wind blower 211 and mend
Air valve 212, and be adjusted by power and aperture of the automatic control system to above-mentioned blower and valve, therefore can reach
Effect identical with venturi valve, and features simple structure, save space, and greatly reduce vent cabinet installation cost and maintenance at
This.
More than, better embodiment of the invention is illustrated, however, the present invention is not limited thereto, without departing from the spirit
In the range of, various modifications can be carried out to implement.
For example, in the above-described embodiment, portion is set there are two wind-supplying mouth on the cabinet, a benefit wind is equipped in cabinet body lower part
Mouthful, on the cabinet portion and an air draft region, but the setting position of wind-supplying mouth and air draft region are equipped with close to the position of cabinet body rear wall
Set it is without being limited thereto with quantity, as long as plug-type air flow can be formed in working chamber.
Also, in the above-described embodiment, mend wind blower and exhaust fan be respectively adjustable power type blower, mend air valve and
Valve for air exhaust is respectively aperture type variable valve, and but the invention is not restricted to this, as long as by at least one party in blower and valve
It is arranged to adjustable.In addition, in the case where being not required to adjust air quantity, as long as according to vent cabinet system of distance total output blower
Distance is arranged the constant power of blower and the fixation aperture of valve.
Also, in the above-described embodiment, mends air valve and valve for air exhaust is separately positioned on and mends wind blower and exhaust fan
The downstream side of air-flow direction, but the invention is not restricted to this, and benefit wind can also be separately positioned on by mending air valve and valve for air exhaust
The upstream side of the air-flow direction of blower and exhaust fan.
Also, in the above-described embodiment, the inlet of the air at the open front of vent cabinet is adjusted equipped with sliding window, but
It is that the invention is not limited thereto, in the case where not needing to adjust air inlet, sliding window can also be not provided with to reduce cost.
Also, in the above-described embodiment, set below cabinet body there are two base cabinet be used to store the required reagent of experiment and
Material, but the invention is not restricted to this, and the quantity of base cabinet, which can according to need, to be appropriately arranged with, or is not provided with base cabinet.In addition, bottom
As long as the quantity of cabinet air exhaust passage and position correspond to the quantity of base cabinet and location-appropriate setting both may be used.
Also, in the above-described embodiment, the inner surface of side wall is arranged in the air velocity transducer for measuring surface wind speed, but
The invention is not limited thereto, and air velocity transducer also can be set on the inner wall of the working chambers such as bottom wall or roof, as long as being able to detect
Face wind speed will not interfere experimental implementation again.
Also, in the above-described embodiment, vent cabinet is the vent cabinet of use for laboratory, but in addition to this, ventilation of the invention
Cabinet is applicable to any required work that harmful substance in air is controlled and is discharged, for example, in semicon industry it is required
Wet etching cleaning system etc..
Claims (8)
1. a kind of vent cabinet, comprising: cabinet body, the inner cavity of the cabinet body constitutes working chamber, and antetheca forms oriented indoor environment and opens wide
Open front；The mend wind passage of air-makeup system, the air-makeup system and building connects, and Xiang Suoshu working chamber mends wind；And air draft
The air exhaust passage of system, the exhaust system and building connects, will enter by the open front working chamber air and
It is discharged by the air that the air-makeup system enters the working chamber from the working chamber, which is characterized in that
The air-makeup system includes wind-supplying mouth and mend wind passage, and the air-makeup system respectively has in the upper and lower part of the cabinet body
At least one described wind-supplying mouth, the wind-supplying mouth towards blowing in the working chamber,
It is equipped with adjustable power type above the cabinet body and mends wind blower and/or aperture type variable benefit air valve and adjustable power type
Exhaust fan and/or aperture type variable valve for air exhaust,
It connects the benefit wind blower and each mend wind passage for mending air valve and each wind-supplying mouth communicates with each other.
2. vent cabinet as described in claim 1, which is characterized in that
Each wind-supplying mouth extends respectively along the left and right width direction of the working chamber,
Include: in multiple wind-supplying mouths
The first wind-supplying mouth positioned at the top of the open front；
The second wind-supplying mouth positioned at the lower section of the open front；And
Third wind-supplying mouth positioned at the outside on the top and antetheca of the cabinet body, the third wind-supplying mouth is towards the working chamber
It blows the lower section of the interior and described cabinet body.
3. vent cabinet as claimed in claim 2, which is characterized in that
Second wind-supplying mouth is externally provided with the protective grille for surrounding second wind-supplying mouth,
The third wind-supplying mouth is externally provided with the protective grille for surrounding the third wind-supplying mouth.
4. vent cabinet as described in claim 1, which is characterized in that
The left and right sidewall of the cabinet body is hollow double-layer structure, positioned at the mend wind passage on cabinet body top and positioned at cabinet body lower part
The mend wind passage be connected to by the hollow space of the left and right sidewall.
5. vent cabinet as described in claim 1, which is characterized in that
Flow deflector is respectively equipped on each wind-supplying mouth.
6. vent cabinet as described in claim 1, which is characterized in that
The exhaust system has air draft region, the air draft in the position on the top of the cabinet body and the rear wall of the close cabinet body
Region extends in the entire left and right width direction of the cabinet body, and connect with the exhaust fan and the valve for air exhaust.
7. vent cabinet as claimed in claim 6, which is characterized in that
Include: in multiple wind-supplying mouths
The first wind-supplying mouth positioned at the top of the open front；
The working chamber has the sloping top walls obliquely extended rearwardly and upwardly from first wind-supplying mouth towards the air draft region.
8. vent cabinet as claimed in claim 6, which is characterized in that
Deflector, the deflector close to the rear wall upright setting are equipped in the working chamber, and upper end is described in
Air draft region extends,
Multiple through holes are equipped in the lower part of the deflector, multiple through hole is in the entire left and right width side of the deflector
Distribution upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073733.0A CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169620.2A CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
| CN201910073733.0A CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510169620.2A Division CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530382A true CN109530382A (en) | 2019-03-29 |
Family
ID=57336593
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810444895.6A Pending CN108435747A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
| CN201910073733.0A Pending CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
| CN201510169620.2A Active CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810444895.6A Pending CN108435747A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510169620.2A Active CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
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| Country | Link |
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| CN (3) | CN108435747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560446A (en) * | 2019-07-01 | 2019-12-13 | 广州三洛环保科技有限公司 | Ventilation cabinet |
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| CN108151222A (en) * | 2016-12-05 | 2018-06-12 | 王楚平 | Air supplement type exhaust cabinet |
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| CN107282583A (en) * | 2017-08-08 | 2017-10-24 | 倚世节能科技（上海）有限公司 | A kind of mend wind passage of ventilation equipment |
| CN108220130A (en) * | 2018-02-09 | 2018-06-29 | 达尔（广州）生物科技有限公司 | The air channel structure of Biohazard Safety Equipment |
| CN108213020A (en) * | 2018-03-21 | 2018-06-29 | 苏州特福佳实验室系统工程有限公司 | Interior benefit wind energy-saving ventilation cabinet |
| CN112762549A (en) * | 2019-11-04 | 2021-05-07 | 倚世节能科技（上海）有限公司 | Air supplementing structure and exhaust cabinet |
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| CN111059677A (en) * | 2019-11-26 | 2020-04-24 | 广州柯美隆实验设备科技有限公司 | Adjustable speed-increasing and flow-stabilizing type energy-saving physical and chemical safety cabinet |
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| CN111195637B (en) * | 2020-03-10 | 2021-03-16 | 雷柏特（南通）实验室系统工程有限公司 | Novel interior tonifying wind exhaust cabinet |
| DE102020129412A1 (en) * | 2020-11-09 | 2022-05-12 | Lab-Concept GmbH | Exhaust device with volumetric flow control |
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| CN113578910B (en) * | 2021-08-30 | 2024-07-23 | 青岛中科汉维实验室装备科技有限公司 | Low energy consumption air supplement type laboratory fume chamber |
| CN115007590B (en) * | 2022-06-17 | 2023-11-10 | 倚世节能科技（上海）有限公司 | Fume chamber |
| CN115318786B (en) * | 2022-08-03 | 2023-10-27 | 倚世节能科技（上海）有限公司 | Fume chamber |
| CN117046856B (en) * | 2023-10-12 | 2024-01-23 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106140769A (en) | 2016-11-23 |
| CN108435747A (en) | 2018-08-24 |
| CN106140769B (en) | 2021-05-18 |
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