CN106140769A - Ventilated chamber - Google Patents
Ventilated chamber Download PDFInfo
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- CN106140769A CN106140769A CN201510169620.2A CN201510169620A CN106140769A CN 106140769 A CN106140769 A CN 106140769A CN 201510169620 A CN201510169620 A CN 201510169620A CN 106140769 A CN106140769 A CN 106140769A
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Abstract
The present invention provides a kind of overflow that can reduce harmful substance in air conditioning energy consumption, suppression working chamber and installation cost is low and ventilated chamber that the concordance of product quality is high, including: cabinet, the inner chamber of this cabinet constitutes working chamber, and antetheca forms the open front that oriented indoor environment is opened wide；Air-makeup system, this air-makeup system is connected with the benefit wind passage of building, mends wind to working chamber；And exhaust system, this exhaust system is connected with the air exhaust passage of building, the air of working chamber will be entered through open front and enter the air of working chamber from working chamber discharge through air-makeup system, air-makeup system respectively has at least one wind-supplying mouth in the upper and lower of cabinet, this wind-supplying mouth is blown in working chamber, cabinet is arranged over top module, the benefit wind blower fan of air-makeup system is installed in top module and mends air valve, and the exhaust fan of exhaust system and valve for air exhaust, the each wind passage of mending connecting benefit wind blower fan and benefit air valve and each wind-supplying mouth communicates with each other.
Description
Technical field
The present invention relates to a kind of ventilated chamber, particularly relate to a kind of air-replenishing type ventilating cabinet.
Background technology
Ventilated chamber typically can be described as one for catching, accommodate and scavenging, harmful gas and particulate matter logical
Wind work space.The ventilated chamber that major part is traditional uses to be sent into substantial amounts of to the working chamber of ventilated chamber at the open front of ventilated chamber
Surrounding air, simultaneously with receiving and the process of powerful blower fan harmful substance during air draft carries out air in working chamber.?
Under the design concept of tradition ventilation cabinet, the air quantity sent into from open front is the highest, ventilated chamber to the control of harmful substance in air and
Discharge function is the most effective, it is therefore desirable to by the heating ventilation air-conditioning system of building to the space such as laboratory using this ventilated chamber
Fill into large quantity of air and replace sending into from open front the surrounding air of ventilated chamber.Owing to filling into the air of laboratory and belong to supply it is
A part for laboratory environment air, it must be processed to identical surrounding air degree to guarantee laboratory work environment
Comfortableness and safety, therefore, the use of tradition ventilation cabinet typically results in the building at the places such as laboratory and produces the biggest
Energy consumption.Additionally, unpredictable and inconsistent air flow, such as the vortex type air near air vent and open front
Tissue can often occur.In this case, the air velocity no matter sent into from open front is how many, in working chamber air
If system has sinuous flow and vortex to will result in the risk of the air overflow in working chamber, the health and safety of experimenter is constituted
Threaten.Therefore, harmful substance in pole needs new ventilated chamber design structure and running technology to reduce energy consumption and reduce working chamber
Overflow risk.
Novel energy-saving environment-friendly type ventilated chamber on ventilated chamber market is air-replenishing type ventilating cabinet at present.By above cabinet or
Lower section arranges a wind-supplying mouth, is blown into the working chamber of ventilated chamber from the acquisition compensation current wind-power system of mending of building, this
The air conditioning energy consumption owing to mending the building that wind causes has been saved in the design of sample to a certain extent.But, existing Novel fume chamber
Single benefit pathogenic wind stream can not set up stable air flow in the working chamber of ventilated chamber, so air sinuous flow
The most unresolved with eddy current problem, the overflow risk of harm experimenter's health and safety still exists.It addition, in the market
Ventilated chamber rely on the unified air-makeup system of building and exhaust system and obtain power, if occurring, multiple ventilated chamber is the most parallel
Using, its row mends the individual character regulation needed for air quantity can not realize according to service condition, so will also result in the result that energy consumption is higher.
Further, during installation and debugging, it is interim assembled at the scene that ventilated chamber and control system thereof are typically with parts in bulk,
Therefore there is the problem that installation cost concordance high, product quality is poor.
Summary of the invention
Invent problem to be solved
The present invention makes in view of the above problems, its object is to, it is provided that one can reduce air conditioning energy consumption, suppression working chamber
The overflow of interior harmful substance and installation cost is low and ventilated chamber that the concordance of product quality is high.
Means for solving the above
In order to solve the problems referred to above, the ventilated chamber of the present invention, including: cabinet, the inner chamber of this cabinet constitutes working chamber, and front
Wall forms the open front that oriented indoor environment is opened wide；Air-makeup system, this air-makeup system is connected with the benefit wind passage of building, to
Described working chamber mends wind；And exhaust system, this exhaust system is connected with the air exhaust passage of building, will open before described
Mouthful enter described working chamber air and through described air-makeup system enter described working chamber air discharge from described working chamber,
Described air-makeup system respectively has at least one wind-supplying mouth in the upper and lower of described cabinet, and this wind-supplying mouth is towards described working chamber
Interior air-supply, described cabinet is arranged over top module, is provided with the benefit wind blower fan of described air-makeup system in described top module
With mend air valve and the exhaust fan of described exhaust system and valve for air exhaust, connect described benefit wind blower fan and described benefit wind
Valve communicates with each other with each wind passage of mending of each described wind-supplying mouth.
Use said structure, owing to respectively having at least one wind-supplying mouth in the top and the bottom of cabinet, therefore, not only can reduce from
The air quantity that open front is sent into, thus reduce air conditioning energy consumption, and owing to the setting of multiple wind-supplying mouths can be set up in working chamber
Stable plug-type air flow, therefore greatly reduces the risk of air overflow in working chamber.Further, since it is logical
Wind cabinet self has exhaust fan and valve for air exhaust and mends wind blower fan and mend air valve, therefore, it is possible to according to such as ventilated chamber
Whether being positioned at the practical situations such as setting regions relative to the distance of total output blower fan, the operator of building, flexible design is arranged
Wind air quantity and benefit wind air quantity, further help in reduction energy consumption.Further, ventilation all it is integrated in due to above-mentioned blower fan and valve etc.
On the top module that cabinet is had, therefore without carrying out on-site consolidation or the ventilating system of building being carried out Secondary Design, by
This is capable of the reduction of installation cost.Further, due to the modularized design being a highly integrated, therefore, it is possible to ensure product
The concordance of quality.
It addition, it is preferred that the left and right sidewall of described cabinet is hollow double-layer structure, the described benefit wind being positioned at cabinet top leads to
Road is connected by the hollow space of described left and right sidewall with the described benefit wind passage being positioned at cabinet bottom.
Using said structure, the wind passage of mending making to be positioned at cabinet top and the bottom is communicated with each other by the hollow space of sidewall, therefore without
Connection pipeline need to be additionally set, both saved space, in turn simplify the user operation when first installation ventilated chamber.
It addition, it is preferred that described exhaust system has in the position on the top of described cabinet and the rear wall of close described cabinet
Air draft region, this air draft region extends on the whole left and right width of described cabinet, and with described exhaust fan and described
Valve for air exhaust connects.
Use said structure, owing to air draft region is located at cabinet top and the position near cabinet rear wall, be thus advantageous to above-mentioned
The formation of plug-type air flow.Further, since air draft region extends on the whole left and right width of cabinet, because of
This can be avoided being formed about air eddy at the top exhaust outlet of working chamber, and for including base cabinet air exhaust passage described later
The connection of whole exhaust system provide probability.
It addition, it is preferred that each described wind-supplying mouth extends respectively along the left and right width of described working chamber, multiple described
Wind-supplying mouth includes: be positioned at the first wind-supplying mouth of the top of described open front；It is positioned at the second benefit wind of the lower section of described open front
Mouthful；And it being positioned at the top of described cabinet and the 3rd wind-supplying mouth in the outside of described antetheca, the 3rd wind-supplying mouth is towards described work
Make the lower section air-supply of intracavity and described cabinet.
Use said structure, the formation of the most above-mentioned plug-type air flow.Further, owing to wind-supplying mouth is along work
The left and right width in chamber extends, therefore, it is possible to send air equably, prevents the formation of turbulent flow.Further, since the 3rd mends
Drying downwards in air port, the wind of this blowout downwards is located just at the position of breathing of operator, therefore can reduction operation people further
Member sucks the risk of harmful substance, and the wind of this blowout downwards defines " air curtain ", it is possible to play buffering working chamber
The interior effect with cabinet external environment air, effectively prevents overflow risk.
It addition, it is preferred that described working chamber has from described first wind-supplying mouth towards described air draft region the most obliquely
The sloping top walls extended.
Use said structure, can prevent from being formed at the top of working chamber eddy current, work intracavity gas can be made from above-mentioned first QI invigorating
Opening's edge sloping top walls is the most uniformly climbed to territory, above-mentioned exhaust zone.
It addition, it is preferred that be provided with deflector in described working chamber, this deflector is uprightly arranged near described rear wall ground,
And upper end extends towards described air draft region, being provided with multiple through hole in the bottom of described deflector, the plurality of through hole exists
It is distributed on the whole left and right width of described deflector.
Use said structure, be conducive to the gas in working chamber being guided above-mentioned exhaust gas region and avoiding the generation of air-swirl,
Further, owing to the through hole on deflector is distributed on the whole left and right width of deflector, hence help to provide whole
The continuous air draft that the wide face of working chamber is basically identical.
It addition, it is preferred that be provided with at least one base cabinet in the lower section of described cabinet, the inner chamber of this base cabinet passes through base cabinet air draft
Passage and described air draft regional connectivity, this base cabinet air exhaust passage is located at the hollow bulb of at least one party's sidewall in the sidewall of described left and right
In point and vertically extending near described rear wall ground.
Use said structure, the harmful gas produced owing to depositing volatile reagent or toxic material can be discharged in base cabinet
Outdoor.Further, owing to base cabinet air exhaust passage is arranged in the hollow space of sidewall, therefore, both saved space, simplified again
User first ventilated chamber is installed time operation.
It addition, it is preferred that be respectively equipped with flow deflector on each described wind-supplying mouth.
Use said structure, it is possible to make turbulent flow minimize, it is ensured that mend pathogenic wind stream and blow out the most lentamente along direction initialization.
It addition, it is preferred that described second wind-supplying mouth is externally provided with the protective grille surrounding this second wind-supplying mouth, the described 3rd mends
Air port is externally provided with the protective grille surrounding the 3rd wind-supplying mouth.
Use said structure, both can effectively reduce wind-supplying mouth material deterioration inside, bottom benefit wind air can be helped again further and become layer
Stream fills into working chamber, it is also possible to prevent foreign material from entering wind-supplying mouth.
It addition, it is preferred that described benefit wind blower fan and exhaust fan are respectively adjustable power type blower fan, described benefit air valve and
Valve for air exhaust is respectively aperture type variable valve, and described ventilated chamber is additionally provided with: sliding window, and this sliding window can be along described open front
Slide, for regulating the open area of described open front；Position sensor, this position sensor is located in described top module,
For detecting the position of described sliding window；Air velocity transducer, this air velocity transducer is arranged on described work near described open front
Make on the inwall in chamber, enter the speed of the air of described working chamber for detection from described open front；Infrared Detectors, this is red
External detector is arranged at the antetheca of described top module, is used for detecting whether operator are in setting regions；And control single
Unit, this control unit is positioned at described top module, with described position sensor, described air velocity transducer, described infrared spy
Survey device, described benefit wind blower fan and described benefit air valve and described exhaust fan and described valve for air exhaust connects, and based on
Described position sensor, described air velocity transducer, described Infrared Detectors detection information to the power of described benefit wind blower fan and
The aperture of described benefit air valve and the aperture of the power of described exhaust fan and described valve for air exhaust are adjusted.
Use said structure, can according to the actually used situation of ventilated chamber self, utilize automatic control system to mend wind blower fan and
Mend air valve and exhaust fan and the power of valve for air exhaust and aperture be automatically adjusted, be not only able to reduce air conditioning energy consumption,
And features simple structure, save space, and greatly reduce installation cost and the maintenance cost of ventilated chamber.
Accompanying drawing explanation
Fig. 1 is the front view of the ventilated chamber of the better embodiment of the present invention.
Fig. 2 is the rear cross sectional view of the ventilated chamber of the better embodiment of the present invention.
Fig. 3 is the axonometric chart of the ventilated chamber of the better embodiment of the present invention.
Fig. 4 is the air-flow guiding figure of the ventilated chamber of the better embodiment of the present invention.
Fig. 5 is the air-flow guiding figure of the air-makeup system of the ventilated chamber of the better embodiment of the present invention.
Fig. 6 is the air-flow guiding figure of the exhaust system of the ventilated chamber of the better embodiment of the present invention.
Symbol description
100 cabinets
102 working chambers
About 103 sidewalls
104 roofs
105 base cabinets
106 rear walls
108 diapires
109 sloping top walls
110 open fronts
201 first mend wind passage
202 second mend wind passage
203 the 3rd mend wind passage
211 mend wind blower fan
212 mend air valve
311 exhaust fans
312 valve for air exhausts
313 gas skirts
314 deflectors
315 guiding gutters
335 air draft regions
400 top modules
801 air velocity transducers
802 position sensors
803 Infrared Detectorss
804 sliding windows
A1 the first wind-supplying mouth
A2 the second wind-supplying mouth
A3 the 3rd wind-supplying mouth
A4 mends the total mouth of wind
B1, B2 base cabinet air exhaust passage
The total mouth of B4 air draft
Detailed description of the invention
Presently in connection with accompanying drawing, the better embodiment of the present invention is discussed in detail.Although description of the invention will be the most real in conjunction with this
Mode of executing is introduced together, but this feature not representing this invention is only limitted to this embodiment.On the contrary, combine embodiment party
Formula is made the purpose of invention introduction and is other selection likely extended to cover claim based on the present invention or changes
Make.In order to provide the degree of depth to the present invention to understand, many concrete details in below describing, will be comprised.The present invention can not also
These details are used to implement.Additionally, in order to avoid the emphasis of the chaotic or fuzzy present invention, some detail will in the de-scription
It is omitted.
It addition, used in the following description " on ", D score, "left", "right", " top ", " end ", be based on this
Locus when ventilated chamber is used by the experimenter of laboratory and define, should not be construed as limitation of the present invention.
As shown in Figures 1 to 4, the ventilated chamber of the better embodiment of the present invention includes cabinet 100, the inner chamber of this cabinet 100
Constitute working chamber 102, this cabinet 100 has: left and right sidewall 103, roof 104, rear wall 106, diapire 108 and
It is formed at the open front 110 opened wide to indoor environment of antetheca.In the present embodiment, the lower section of cabinet 100 is provided with two
Base cabinet 105, this base cabinet 105 may be used for the reagent needed for storage experiment and material.
It is arranged over the distinctive top module of ventilated chamber of the present invention 400 at cabinet 100.Top module 400 is internally installed to be had:
The mending wind blower fan 211, be in the adjustable benefit of aperture in air-flow direction downstream mending wind blower fan 211 of power adjustable joint
The exhaust fan 311 of air valve 212, power adjustable joint and be in the opening of air-flow direction downstream of exhaust fan
Spend adjustable valve for air exhaust 312.Above-mentioned benefit wind blower fan 211, benefit air valve 212 and each wind-supplying mouth described later, benefit wind
Passages etc. constitute air-makeup system, and this air-makeup system is connected, to working chamber with the benefit wind passage of building by mending wind total mouth A4
Wind is mended in 102.Said exhaust blower fan 311, valve for air exhaust 312 and air draft region described later, air exhaust passage etc. constitute row
Wind system, this exhaust system is connected with the air exhaust passage of building by air draft total mouth B4, will enter through open front 110
The air of working chamber 102 and enter the air of working chamber 102 through above-mentioned air-makeup system and discharge from working chamber 102.
Fig. 4 is the air-flow guiding figure of the ventilated chamber of present embodiment, and Fig. 5 is the air-makeup system of the ventilated chamber of present embodiment
Air-flow guides figure.As shown in Figure 4,5, being arranged over the first wind-supplying mouth A1 in above-mentioned open front 110, this first mends wind
Mouth A1 is designed to the semi-cylindrical shape extended along the left and right width of working chamber 102, and its semi-cylindrical is towards work
Chamber 102 is i.e. towards rear.On this first wind-supplying mouth A1, it is provided with and multiple along the axially extending of semi-cylindrical and circumferentially arranges
The flow deflector 221 (as illustrated in Fig. 5) of row.It is provided with the first benefit wind across cabinet left and right width to lead on the top of cabinet
Road 201, above-mentioned benefit air valve 212 and above-mentioned first wind-supplying mouth A1 are coupled together by this first benefit wind passage 201.First mends
Wind passage 201 designs for skew wall near the one side of working chamber 102.This skew wall can be evenly distributed in the first benefit wind passage 201
The air of movement, and its wind speed is reduced.So, mending wind blower fan 211 by operating, the first wind-supplying mouth A1 is along semi-cylindrical
Radial direction supplementary air is sent into the most lentamente in the working chamber 102 of ventilated chamber.Although delivering to first from mending wind blower fan 211
The air-flow of wind-supplying mouth A1 still has a ratio (about less than 15%) of certain turbulent flow, but the setting of flow deflector 221 can by turbulent flow every
Disconnected, it is ensured that the air-flow being blown into working chamber 102 from the first wind-supplying mouth A1 is laminar condition.
Be provided with the second wind-supplying mouth A2 in the lower section of open front 110, this second wind-supplying mouth A2 is designed to along working chamber 102
1/4 cylindrical shape that left and right width extends, its 1/4 face of cylinder towards working chamber 102 i.e. towards back upper place.At this
On second wind-supplying mouth A2, be provided with multiple along the axially extending of 1/4 face of cylinder and the flow deflector 222 that circumferentially arranges (such as Fig. 5
Middle signal).The second benefit wind passage 202 across cabinet left and right width it is provided with, this second benefit wind passage in the bottom of cabinet
The air of 202 in the future self-complementary wind blower fans 211 carries to this second wind-supplying mouth A2, and compensation current therefore can be made along 1/4 face of cylinder
Radially uniform be blown into working chamber.Further, since the second wind-supplying mouth A2 is positioned at the working area of ventilated chamber, leading of this region
Flow has the consume risk caused because of frequently using.Therefore, in the present embodiment, outside the second wind-supplying mouth A2
It is provided with and surrounds the risk that the protective grille (not shown) of this second wind-supplying mouth A2 prevents flow deflector 222 from consuming.Protect simultaneously
Protect grid and can also help to guide the benefit pathogenic wind stream of the second wind-supplying mouth A2, and contribute to the gas sent from the second wind-supplying mouth A2
Become laminar condition and filled into working chamber 102, prevent foreign material from entering the second wind-supplying mouth A2 it addition, protective grille can also play
Effect.
It is provided with the 3rd wind-supplying mouth A3, the 3rd wind-supplying mouth A3 to be designed in the front side on the top of cabinet 100 and above-mentioned antetheca
1/4 cylindrical shape extended along the left and right width of working chamber 102, its 1/4 face of cylinder is towards working chamber 102 i.e. court
To the back lower place.On the 3rd wind-supplying mouth A3, it is provided with multiple 1/4 along the axially extending of the face of cylinder and leading of circumferentially arranging
Flow 223 (as illustrated in Fig. 5).The 3rd benefit wind passage 203 across cabinet left and right width it is provided with on the top of cabinet,
The 3rd mend wind passage 203 and above-mentioned first mend between wind passage 201 can plug-in mounting sliding window described later 804, the 3rd mends
Wind passage 203 is walked around this sliding window 804 and is mended wind passage 201 with above-mentioned first and connect, and then self-complementary wind blower fan 211 in the future
Air carry to the 3rd wind-supplying mouth A3.3rd benefit wind passage 203 designs for skew wall, the most all away from the one side of cabinet
Even distributed the air of movement in the 3rd benefit wind passage 203, reduce again wind speed.Under mending blower fan 211 effect, supplement
Air can blow out lentamente along the 3rd the radially uniform of wind-supplying mouth A3.3rd wind-supplying mouth A3 is not only towards the work of cabinet 100
Blow in chamber 102, and towards the lower section air-supply of cabinet 100, the wind of this blowout downwards is located just at the breathing position of experimenter
Put, therefore can lower experimenter further and suck the risk of harmful substance.Further, blow out downwards from the 3rd wind-supplying mouth A3
Wind define " air curtain ", in serving buffering working chamber 102 and the effect of cabinet external environment air, effectively prevent from overflowing
Stream risk.In the present embodiment, outside the 3rd wind-supplying mouth A3, it also is provided with surrounding the protective grille of the 3rd wind-supplying mouth A3,
This protective grille plays equally and prevents flow deflector consume, guides and mend pathogenic wind stream and prevent foreign material from entering the effect of wind-supplying mouth.
As it is shown in figure 5, the left and right sidewall 103 of cabinet 100 is hollow double-layer structure, it is positioned at above-mentioned the first of cabinet top and mends
Wind passage 201 is connected by the hollow space 225 of left and right sidewall 103 with the second benefit wind passage 202 being positioned at cabinet bottom,
Thus so that all benefit wind passages of present embodiment communicate with each other, thus the benefit air quantity of ventilated chamber can by mend wind blower fan 211
Power and mend the unified regulation and control of aperture of air valve 212.
As shown in Figure 2,4, the top of cabinet and be provided with across cabinet 100 near the position of above-mentioned rear wall 106 whole
The gas skirt 313 of left and right width.The upper end of this gas skirt 313 is connected with exhaust fan 311, and its Inner Constitution is at cabinet
The air draft region 335 extended on the whole left and right width of body 100.By arranging such air draft region 335, permissible
Avoid being formed about air eddy at the top exhaust outlet of working chamber 102, and be including base cabinet air exhaust passage described later
The connection of whole exhaust system provides probability.
As shown in Figure 4, in the present embodiment, also have in above-mentioned working chamber 102 from above-mentioned first wind-supplying mouth A1 upward
Stating the sloping top walls 109 that air draft region 335 extends the most obliquely, this sloping top walls 109 is for working chamber 102
Defining part to surround, the both sides of sloping top walls 109 and the left and right sidewall 103 of cabinet connect, bottom and the first wind-supplying mouth A1
Upper limb connects, and top and roof 104 connect.Due to the work of exhaust blower height exhaust air rate, traditional ventilated chamber working chamber interior
Air-swirl is often formed on top, makes toxic and harmful to be discharged, and the design of sloping top walls can break the expansion of eddy current
Bigization, coordinates the laminar winds that the first wind-supplying mouth A1 of cabinet inner top sends, and in can making cabinet, gas is the most uniformly climbed along skew wall
To air draft region.The angle of this sloping top walls 109 and shape design are to contribute to controlling and in preventing working chamber 102
The overflow of harmful substance in air, and reduce the probability of air formation vortex near the air draft region 335 at top.It addition,
Such as Fig. 1, as described in 4, in above-mentioned working chamber 102, in the position near above-mentioned rear wall 106, also it is equipped with deflector 314,
The upper end of this deflector 314 extends towards said exhaust region 335, is provided with multiple running through in the bottom of this deflector 314
Hole, the plurality of through hole is distributed on the whole left and right width of deflector 314, at deflector 314 and above-mentioned diapire 108
Between leave guiding gutter 315.By the setting of the deflector 314 with through hole, can be by the air in working chamber 102
Stably guide air draft region, top 335 and avoid the generation of air-swirl, and the width of whole working chamber 102 can be carried out
The continuous air draft that face is basically identical.
Arrow in Fig. 4 shows the air type of flow when entering, pass through and discharge the cabinet of ventilated chamber.Mending wind wind
Under the effect of machine 211 and benefit air valve 212, mend pathogenic wind stream and enter the air-makeup system of ventilated chamber, flowing from total wind-supplying mouth A4
To each wind-supplying mouth A1, A2 and A3, and then uniformly slowly entering working chamber 102, meanwhile, a part of surrounding air also can be with
The angle being perpendicular to open front 110 enters working chamber 102 from open front 110.After these air enter working chamber 102, as
Shown in arrow, substantially can be pulled to uniformly and be passed through the air draft region 335 at top, deflector 314 and guiding gutter 315,
Discharge with the direction of arrow from total exhaust outlet B4 at cabinet top subsequently.Those skilled in the art can will be apparent from: air flow face
Long-pending change can cause the fluctuation of speed air flow.Therefore, the air entered from open front 110 is entering working chamber 102
Big region time, wind speed can decrease；When these air continue near the air draft region 335 at top, wind speed meeting
Increase.The fluctuation of this wind speed contributes to maintaining consistent, a stable benefit wind and air draft push-and-pull system.This is plug-type
Air in cabinet can be moved in the way of synchronous shift by system, so can be the turbulent flow of air in required benefit air quantity and cabinet
Risk lowers in a large number.Additionally, the push-pull system of present embodiment employing and arranging of sloping top walls 109 can be empty in cabinet
The risk minimization of the formation of disturbance of QI stream and vortex, is particularly at above working chamber 102 and the air tissue of open front 110.
Therefore, thus displacement air produced by push-pull system move system can more effectively harmful substance in air in switch board
Probability from open front overflow.
Fig. 6 is the air-flow guiding figure of the exhaust system of the ventilated chamber of present embodiment.For discharging two base cabinets 105 of ventilated chamber
In the toxic and harmful that produces owing 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 is respectively
It is located in the hollow space of corresponding left and right sidewall 103, and vertically extending near above-mentioned rear wall 106 ground, will be corresponding
The inner chamber of base cabinet 105 connects to the corresponding side in the air draft region 335 in the gas skirt 313 at above-mentioned cabinet top.So,
Under the effect of exhaust fan 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 mixes with the air-flow being pulled or pushed to air draft region 335 in working chamber 102, discharges from total exhaust outlet B4 together
In the air exhaust passage of building.As can be seen here, similar air-makeup system, each air exhaust passage of ventilated chamber of the present invention is the most each other
Association, then total exhaust air rate can be controlled by the aperture of the power of exhaust fan 311 and valve for air exhaust 312.
Further, the ventilated chamber of present embodiment can coordinate control system to use as air-volume-variable fume hood, its open front
The inlet of the air at place can be changed the most flexibly by the change of sliding window position.Specifically, as Fig. 3,
Shown in 4, in the present embodiment, ventilated chamber is additionally provided with: sliding window 804, and this sliding window 804 can be along above-mentioned open front 110
Slide, for regulating the open area of this open front 110；Position sensor 802, this position sensor 802 is located at above-mentioned
In top module 400, for detecting the position of above-mentioned sliding window 804；Air velocity transducer 801, this air velocity transducer 801
It is arranged on the inner surface of the side in above-mentioned left and right sidewall 103 near above-mentioned open front 110 ground, for detection before above-mentioned
Opening 110 enters the speed (hereinafter referred to as face wind speed) of the air of above-mentioned working chamber 102；Infrared Detectors 803, this is red
External detector 803 is arranged at the antetheca of above-mentioned top module 400, whether is in setting regions for test experience personnel；With
And control unit (not shown), this control unit is positioned at above-mentioned top module 400, with above-mentioned position sensor 802, wind
Speed sensor 801, Infrared Detectors 803, above-mentioned benefit wind blower fan 211 and benefit air valve 212 and exhaust fan 311 and
Valve for air exhaust 312 connects, and based on above-mentioned position sensor 802, air velocity transducer 801 and Infrared Detectors 803
Detection information to above-mentioned benefit wind blower fan 211 and mend each of air valve 212 and exhaust fan 311 and valve for air exhaust 312
From power and aperture be adjusted.
Whether above-mentioned Infrared Detectors 803 can be in the working region of setting with perception experimenter, if detecting, nobody is in
The sliding window 804 of working area and ventilated chamber is not off, then control unit can give the driving means of sliding window 804
(not shown) sends signal, closes sliding window 804, reduces the air entering working chamber from indoor environment, reduces laboratory
Energy consumption；It addition, after sliding window 804 is closed, the air quantity that enters of ventilated chamber is only provided by each wind-supplying mouth A1～A3, ventilated chamber
Exhaust air rate reduce simultaneously, therefore the system energy consumption of ventilated chamber also decreases.
On the other hand, when the aperture of sliding window 804 changes, above-mentioned control unit receives position sensor 802 and sends
Sliding window opening value, calculating maintenance face wind speed according to below equation is the ventilated chamber exhaust air rate required for preset value:
Q=V*S*3600 (1)
Q is the exhaust air rate of the working chamber 102 of ventilated chamber, and unit is m3/h；V is the preset value of face wind speed, and unit is m/s；
S is the ventilation-sectional area i.e. area of open front 110 of sliding window 804, and unit is m2, wherein,
S=L*H (2)
L is that (sliding window 804 is for moving left and right for the width (sliding window 804 for moving up and down time) of sliding window 804 or height
Time) it is fixed value；And the opening value that H is 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 of calculated ventilated chamber, and combines under the wind speed of the face of presetting
The exhaust air rate numerical value of base cabinet air exhaust passage B1 and B2 of base cabinet 105, adjusts power and the valve for air exhaust 312 of exhaust fan 311
Aperture, thus change the exhaust air rate of whole ventilated chamber.Can also adjust mend wind wind according to above-mentioned each detected value and value of calculation
The power of machine 211 and the aperture of benefit air valve 212, thus change the benefit air quantity of air-makeup system.
When multiple ventilated chambers are connected in parallel in ventilation system for buildings, needed for each ventilated chamber is according to the service condition of self
Mend exhaust air rate also can be not quite similar.In parallel air flow system, system of distance total output blower fan is the nearest, can supplement or discharge
Throughput the biggest；System of distance total output blower fan is the most remote, and due to pressure drop and loss, the throughput can supplemented or discharge is the least.
If therefore valveless controls, each ventilated chamber only can not realize the individual character regulation depending on service condition by total output blower fan.
For realizing above-mentioned target, the novel environment friendly air-volume-variable fume hood majority on existing market is provided with expensive venturi valve.?
In present embodiment, it is as noted previously, as ventilated chamber self and is integrated with top module 400, and this top module 400 is pacified
Equipped with adjusting power and the exhaust fan 311 of aperture and valve for air exhaust 312 according to practical situation and mend wind blower fan 211
With mend air valve 212, and by automatic control system, above-mentioned blower fan and the power of valve and aperture are adjusted, therefore can
Enough reach the effect identical with venturi valve, and features simple structure, save space, and greatly reduce ventilated chamber installation cost and
Maintenance cost.
Above, the better embodiment of the present invention is illustrated, but the invention is not restricted to this, without departing from the spirit
In the range of, various deformation can be carried out and implement.
Such as, in the above-described embodiment, it is provided with two wind-supplying mouths on cabinet top, is provided with a wind-supplying mouth in cabinet bottom,
On cabinet top and be provided with an air draft region near the position of cabinet rear wall, but wind-supplying mouth and air draft region arrange position and
Quantity is not limited to this, as long as plug-type air flow can be formed in working chamber.
Also, in the above-described embodiment, mend wind blower fan and exhaust fan is respectively adjustable power type blower fan, mend air valve and row
Air valve is respectively aperture type variable valve, but the invention is not restricted to this, as long as at least one party in blower fan and valve being set
It is set to adjustable.It addition, in the case of being not required to regulate air quantity, as long as according to ventilated chamber system of distance total output blower fan
Distance arranges the constant power of blower fan and the fixing aperture of valve.
Also, in the above-described embodiment, mend air valve and valve for air exhaust is separately positioned on benefit wind blower fan and the air of exhaust fan
The downstream of flow direction, but the invention is not restricted to this, mend air valve and valve for air exhaust also can be separately positioned on benefit wind blower fan
Upstream side with the air-flow direction of exhaust fan.
Also, in the above-described embodiment, it is provided with sliding window to regulate the inlet of the air at the open front of ventilated chamber, but
The invention is not restricted to this, in the case of need not regulate air inlet, it is also possible to be not provided with sliding window to reduce cost.
Also, in the above-described embodiment, it is provided with two base cabinets in the lower section of cabinet for storing the reagent needed for experiment and material,
But the invention is not restricted to this, the quantity of base cabinet can be appropriately arranged with as required, or is not provided with base cabinet.It addition, base cabinet
As long as the quantity of air exhaust passage and position arrange both may be used corresponding to quantity and the location-appropriates of base cabinet.
Also, in the above-described embodiment, the air velocity transducer for measuring surface wind speed is arranged on the inner surface of sidewall, but this
Invention is not limited to this, and air velocity transducer can also be arranged on the inwall of the working chamber such as diapire or roof, as long as can detection faces
Wind speed will not hinder again experimental implementation.
Also, in the above-described embodiment, ventilated chamber is the ventilated chamber of use for laboratory, but in addition, the ventilated chamber of the present invention
Be applicable to any work needing and harmful substance in air having been controlled and has discharged, such as required wet in semicon industry
Formula etch cleaning system etc..
Claims (10)
1. a ventilated chamber, including: cabinet, the inner chamber of this cabinet constitutes working chamber, and antetheca forms oriented indoor environment and opens
The open front opened；Air-makeup system, this air-makeup system is connected with the benefit wind passage of building, mends wind to described working chamber；And
Exhaust system, this exhaust system is connected with the air exhaust passage of building, will enter the sky of described working chamber through described open front
Gas and through described air-makeup system enter described working chamber air discharge from described working chamber, it is characterised in that
Described air-makeup system respectively has at least one wind-supplying mouth in the upper and lower of described cabinet, and this wind-supplying mouth is towards described work
Make intracavity air-supply,
Described cabinet is arranged over top module, is provided with benefit wind blower fan and the benefit of described air-makeup system in described top module
Air valve and the exhaust fan of described exhaust system and valve for air exhaust,
The each wind passage of mending connecting described benefit wind blower fan and described benefit air valve and each described wind-supplying mouth communicates with each other.
2. ventilated chamber as claimed in claim 1, it is characterised in that
The left and right sidewall of described cabinet is hollow double-layer structure, is positioned at the described benefit wind passage on cabinet top and is positioned at cabinet bottom
Described benefit wind passage connected by the hollow space of described left and right sidewall.
3. ventilated chamber as claimed in claim 2, it is characterised in that
Described exhaust system has air draft region on the top of described cabinet and near the position of the rear wall of described cabinet, this air draft
Region extends on the whole left and right width of described cabinet, and is connected with described exhaust fan and described valve for air exhaust.
4. ventilated chamber as claimed in claim 3, it is characterised in that
Each described wind-supplying mouth extends respectively along the left and right width of described working chamber,
Multiple described wind-supplying mouths include:
It is positioned at the first wind-supplying mouth of the top of described open front；
It is positioned at the second wind-supplying mouth of the lower section of described open front；And
Being positioned at the top of described cabinet and the 3rd wind-supplying mouth in the outside of described antetheca, the 3rd wind-supplying mouth is towards described working chamber
Blow in interior and described cabinet lower section.
5. ventilated chamber as claimed in claim 4, it is characterised in that
Described working chamber has the sloping top walls extended the most obliquely from described first wind-supplying mouth towards described air draft region.
6. ventilated chamber as claimed in claim 3, it is characterised in that
Being provided with deflector in described working chamber, this deflector is near the upright setting in described rear wall ground, and upper end is towards described
Air draft region extends,
Be provided with multiple through hole in the bottom of described deflector, the plurality of through hole is in the whole left and right width side of described deflector
Upwards it is distributed.
7. ventilated chamber as claimed in claim 3, it is characterised in that
Being provided with at least one base cabinet in the lower section of described cabinet, the inner chamber of this base cabinet is by base cabinet air exhaust passage and described exhaust zone
Territory connects, and this base cabinet air exhaust passage is located in the hollow space of at least one party's sidewall in the sidewall of described left and right, and near described
Rear wall ground is vertically extending.
8. ventilated chamber as claimed in claim 4, it is characterised in that
It is respectively equipped with flow deflector on each described wind-supplying mouth.
9. ventilated chamber as claimed in claim 4, it is characterised in that
Described second wind-supplying mouth is externally provided with the protective grille surrounding this second wind-supplying mouth,
Described 3rd wind-supplying mouth is externally provided with the protective grille surrounding the 3rd wind-supplying mouth.
10. ventilated chamber as claimed in claim 1, it is characterised in that
Described benefit wind blower fan and exhaust fan are respectively adjustable power type blower fan,
Described benefit air valve and valve for air exhaust are respectively aperture type variable valve,
Described ventilated chamber is additionally provided with:
Sliding window, this sliding window can slide along described open front, for regulating the open area of described open front；
Position sensor, this position sensor is located in described top module, for detecting the position of described sliding window；
Air velocity transducer, this air velocity transducer is arranged on the inwall of described working chamber near described open front, is used for detecting
The speed of the air of described working chamber is entered from described open front；
Infrared Detectors, this Infrared Detectors is arranged at the antetheca of described top module, is used for detecting whether operator are in
Setting regions；And
Control unit, this control unit is positioned at described top module, with described position sensor, described air velocity transducer,
Described Infrared Detectors, described benefit wind blower fan and described benefit air valve and described exhaust fan and described valve for air exhaust connect,
And based on described position sensor, described air velocity transducer, described Infrared Detectors detection information to described benefit wind blower fan
Power and the aperture of the aperture of described benefit air valve and the power of described exhaust fan and described valve for air exhaust adjust
Joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810444895.6A CN108435747A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
| CN201910073733.0A CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
| CN201510169620.2A CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
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| CN201510169620.2A CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
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| CN201810444895.6A Division CN108435747A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
| CN201910073733.0A Division CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent cabinet |
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| CN106140769B CN106140769B (en) | 2021-05-18 |
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| CN201510169620.2A Active CN106140769B (en) | 2015-04-10 | 2015-04-10 | Ventilation cabinet |
| CN201910073733.0A Pending CN109530382A (en) | 2015-04-10 | 2015-04-10 | Vent 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 |
| CN108151222A (en) * | 2016-12-05 | 2018-06-12 | 王楚平 | Supplementary air type exhaust gas cabinet |
| 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 |
| WO2018192101A1 (en) * | 2017-04-20 | 2018-10-25 | 倚世节能科技（上海）有限公司 | Speed detection-based control method and control system for providing auxiliary force to open or close sliding door, and fume hood |
| CN111112271A (en) * | 2019-11-26 | 2020-05-08 | 广州柯美隆实验设备科技有限公司 | Adjustable speed-increasing and flow-stabilizing type physical and chemical safety cabinet |
| CN113020192A (en) * | 2021-04-14 | 2021-06-25 | 北京鸣远诺尔科技有限公司 | Parallel-type multi-linkage exhaust-controlled ventilation cabinet |
| CN114453375A (en) * | 2020-11-09 | 2022-05-10 | 实验室融合有限责任公司 | Air volume adjustable type fume hood equipment |
| CN115007590A (en) * | 2022-06-17 | 2022-09-06 | 倚世节能科技（上海）有限公司 | Ventilation cabinet |
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| 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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| CN112570412A (en) * | 2020-11-26 | 2021-03-30 | 重庆劲旗科技股份有限公司 | Active air supplement type multi-channel air suction cover |
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| CN108151222A (en) * | 2016-12-05 | 2018-06-12 | 王楚平 | Supplementary air type exhaust gas cabinet |
| WO2018192101A1 (en) * | 2017-04-20 | 2018-10-25 | 倚世节能科技（上海）有限公司 | Speed detection-based control method and control system for providing auxiliary force to open or close sliding door, and fume hood |
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| CN117046856A (en) * | 2023-10-12 | 2023-11-14 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106140769B (en) | 2021-05-18 |
| CN108435747A (en) | 2018-08-24 |
| CN109530382A (en) | 2019-03-29 |
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Denomination of invention: Fume hood Effective date of registration: 20220616 Granted publication date: 20210518 Pledgee: China Minsheng Banking Corp Shanghai branch Pledgor: E3 GREEN TECHNOLOGY Co.,Ltd. Registration number: Y2022310000061 |
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Denomination of invention: Ventilation cabinet Effective date of registration: 20230804 Granted publication date: 20210518 Pledgee: China Minsheng Banking Corp Shanghai branch Pledgor: E3 GREEN TECHNOLOGY Co.,Ltd. Registration number: Y2023310000435 |