CN106440089A - Multifunctional medical exhaust hood - Google Patents
Multifunctional medical exhaust hood Download PDFInfo
- Publication number
- CN106440089A CN106440089A CN201610977184.6A CN201610977184A CN106440089A CN 106440089 A CN106440089 A CN 106440089A CN 201610977184 A CN201610977184 A CN 201610977184A CN 106440089 A CN106440089 A CN 106440089A
- Authority
- CN
- China
- Prior art keywords
- air
- air outlet
- aerofoil
- brushless
- blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Abstract
The invention relates to a multifunctional medical exhaust hood which is provided with an air inlet, an air outlet, an air duct, a brushless direct current fan and a gravity self-locking exhaust door, wherein the air inlet is used for introducing to-be-exhausted air; the air outlet is used for exhausting the to-be-exhausted air; the air duct is used for enabling the air inlet and the air outlet to be connected and used for guiding the to-be-exhausted air; the brushless direct current fan is arranged in the air duct and used for introducing the to-be-exhausted air and guiding the to-be-exhausted air to the air outlet, and the rotating speed of the brushless direct current fan is adjustable; and the gravity self-locking exhaust door is arranged in the air outlet, and is provided with an air plate, an overturn shaft, a counter weight and a stop block, the air plate is matched with the air outlet in size, the overturn shaft penetrates through the air plate and enables the air plate to be capable of overturning around the overturn shaft, the counter weight is arranged at one end of the air plate and enables the air plate to be kept vertical to seal the air outlet under no-external-force condition, and the stop block is arranged at the top and/or the bottom o the air outlet and used for preventing reverse deflection of the air plate. According to the multifunctional medical exhaust hood, the device and operation cost can be lowered, the control precision can be improved, and meanwhile, the air outlet can be rapidly sealed.
Description
Technical field
Present invention relates in general to medical ventilation equipment field, in particular to a kind of multifunctional medical laboratory hood.
Background technology
In some medical environments, need to maintain the negative pressure in medical room (even if the air pressure in medical room is less than doctor
Treat the air pressure outside room), for example it is accomplished by maintaining such negative pressure, to prevent cause of disease in infectious disease operation room or lazaretto ward
Body is to room external diffusion.At present, generally such negative pressure is formed using exhaust system.However, the shortcoming of existing exhaust system
Be, otherwise exhaust air rate non-adjustable so that the negative pressure requirements of various application occasions cannot be met, or must be using complicated valve
Door system to adjust exhaust air rate, for example, adjusts exhaust air rate by actuating mechanism controls valve folding size, but this causes relatively
High equipment cost and control cost, and the complexity between the opening degree due to valve system and exhaust air rate associates so that its
Adjustment precision is also limited.On the other hand, existing exhaust system typically adopts complicated Mechatronic Systems to seal air outlet to prevent
Got in thus affecting negative pressure by air outlet in the presence of exhaust system rear outdoor air out of service indoors negative pressure
Effect.But this equally causes higher equipment cost and controls cost, and because the response time of Mechatronic Systems is long, this is past
Toward leading to poor sealing effectiveness.
Content of the invention
From prior art, the task of the present invention is to provide a kind of multifunctional medical laboratory hood, by this multi-functional doctor
With laboratory hood, equipment cost and running cost can be reduced, and improve the control accuracy of exhaust air rate, simultaneously can low cost and
Rapidly seal air outlet.
According to the present invention, this task is solved by a kind of Multifunctional exhaust cabinet, and this Multifunctional exhaust cabinet has：
Air inlet, it treats air draft for introducing；
Air outlet, it treats air draft for discharge；
Air channel, air inlet is connected by it with air outlet treats air draft for guiding；
Brushless DC blower, its be arranged in air channel for introduction to treat air draft and will treat air draft to air outlet guide, its
Described in brushless DC blower rotating speed adjustable；And
It is arranged in the gravity self-locking exhaust door in air outlet, described gravity self-locking exhaust door has：
Aerofoil, its size and air outlet match；
Trip shaft, it enables aerofoil to overturn around trip shaft through aerofoil；
Counterweight, it is arranged in one end of described aerofoil so that aerofoil keeps vertically to close in the case of not being subject to external force
Air port；And
Backstop, it is arranged in the top of air outlet and/or bottom for preventing aerofoil from reversely deflecting.
Following advantages are at least had according to the Multifunctional exhaust cabinet of the present invention：(1) by adjustable brushless straight using rotating speed
Flow fan, infinitely can adjust exhaust air rate by adjusting the rotating speed of the brshless DC motor of brushless DC blower, thus saving
Remove the valve system of costliness and complicated control flow, and the adjustability due to exhaust air rate, multi-functional according to the present invention
Laboratory hood can be used for multiple occasions, for example, be used for quick exclusion indoor pollutant or harmful substance, for example remain anesthetic gaseses,
And for having the different medical environment of different negative pressure requirements；Simultaneously, it is possible to achieve energy-conservation, because using brushless DC blower
30% electric energy can be saved compared with using AC blower fan；(2) pass through using gravity self-locking exhaust door, in the feelings not treating air draft
Under condition, it is possible to achieve the self-closed of each air door, make thus being effectively prevented pollutant or foreign body and air channel being entered by air outlet
Become pollution or block；On the other hand, because backstop can prevent the reverse deflection of aerofoil so that there is the situation of negative pressure indoors
Under be prevented from aerofoil in the presence of negative pressure reversely deflection and so that outdoor air gets in and then offsets negative pressure, thus having
Indoor subnormal ambient is safeguarded on effect ground, and this gravity self-locking exhaust door need not be powered, and is swift in response, thus improving sealing effect
Really.
A preferred version of the present invention specifies, described brushless DC blower is arranged in the noise elimination cavity in air channel.
By this preferred version, equipment noise can be reduced, realize good medical environment.This noise elimination cavity can be by foam, cork, rubber
The low density acoustic material such as glue is made it is also possible to be made up of high-density sound-proof materials such as porous or porous metal plates.
Another preferred version of the present invention specifies, this Multifunctional exhaust cabinet also has filter, and it is used for the row for the treatment of
Wind carries out purification filtering.By this preferred version, air draft can be treated and carry out purification filtering, thus preventing interior such as cause of disease
The harmful substance of body etc is directly discharged to outdoor.
The another preferred version of the present invention specifies, described brushless DC blower is FLH400 blower fan." auspicious bright "
FLH400 blower fan has that rotating speed is accurately adjustable, power saving the features such as, be suitable for use as the brushless DC blower of the present invention.
An expansion scheme of the present invention specifies, the rotating speed of described brushless DC blower is for 1000rmp extremely
1400rmp, the total head of described brushless DC blower is 200Pa to 425Pa, and now air quantity is 500m3/ h, and described multi-functional
The air quantity of laboratory hood can be in 500m3/ h to 2000m3Change between/h.By this expansion scheme, can adjust in a big way
Room pressure.
Brief description
The present invention is expanded on further with reference to specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 shows the cut-away view of the Multifunctional exhaust cabinet according to the present invention；And
Fig. 2 shows the schematic diagram of the gravity self-locking exhaust door according to the present invention.
Specific embodiment
Fig. 1 shows the cut-away view of the Multifunctional exhaust cabinet 100 according to the present invention.
As shown in figure 1, Multifunctional exhaust cabinet 100 includes air inlet 101, it treats air draft for introducing.Air inlet 101 is for example
Connect with operating room, reach fast purification effect or vacuum effect for discharging gas from operating room.Multifunctional exhaust cabinet
100 include air outlet 102, and air outlet 102 treats air draft, wherein air channel 103 by air inlet 101 with air outlet 102 even for discharge
Connect and treat air draft for guiding.Air channel 103 both can be special pipeline it is also possible to wall portion shape by Multifunctional exhaust cabinet 100
Become.
Multifunctional exhaust cabinet 100 alternatively has filter 104, such as HEPA filter to be carried out for treating air draft only
Change and filter.By filter 104, air draft can be treated and carry out purification filtering, thus preventing indoor such as pathogen etc
Harmful substance is directly discharged to outdoor and pollutes.
Multifunctional exhaust cabinet 100 also has brushless DC blower 105, and it is arranged in air channel 103 for introduction to the row for the treatment of
Wind simultaneously will treat that air draft guides to air outlet 102, and the rotating speed of wherein said brushless DC blower 105 is adjustable.Described brushless direct-current wind
Machine 105 can be for example " auspicious bright " board FLH400 blower fan.FLH400 blower fan has that rotating speed is accurately adjustable, power saving the features such as, be suitable to
Brushless DC blower as the present invention.By adjusting the rotating speed of brushless DC blower 105, the negative pressure of interior can be adjusted, with
Adapt to the negative pressure requirements of different medical environment.
Multifunctional exhaust cabinet 100 alternatively can also have noise elimination cavity 107, and wherein brushless DC blower 105 is accommodated in
In described noise elimination cavity 107.Noise elimination cavity 107 is used for brushless DC blower 105 is eliminated the noise.By noise elimination cavity 107, can reduce
Equipment noise, realizes good medical environment.This noise elimination cavity 107 can be by the low density acoustic material system such as foam, cork, rubber
Become it is also possible to be made up of high-density sound-proof materials such as porous or porous metal plates.
Additionally, Multifunctional exhaust cabinet 100 also has the gravity self-locking exhaust door 106 being arranged in air outlet 102, it has
Aerofoil 201, trip shaft 203, counterweight 202 and backstop 204 (referring to Fig. 2), wherein gravity self-locking exhaust door 106 is not having external force
The lower natural enclosing air outlet 102 of effect.With regard to the further detail below of Multifunctional exhaust cabinet 100, refer to the description of Fig. 2.
Fig. 2 shows the schematic diagram of gravity self-locking exhaust door 106 in air outlet 102 for the arrangement according to the invention.
As shown in Fig. 2 gravity self-locking exhaust door 106 includes aerofoil 201, its size is matched with air outlet 102.For example,
Being sized such that of aerofoil 201 can just cover air outlet 102 when aerofoil 201 is vertical, to realize sealing effect.
Aerofoil 201 can be made up of plastics, timber or other light material.
Gravity self-locking exhaust door 106 also includes trip shaft 203, and it enables aerofoil 201 around trip shaft through aerofoil 201
203 upsets.
As shown in Fig. 2 in one end of aerofoil 201, such as lower end is disposed with counterweight 202 so that aerofoil 201 be not subject to external force
In the case of kept due to action of gravity vertically to close air outlet 102.Counterweight 202 can be for example the high density material such as metal
Material is made.So that aerofoil 201 be not subject to external force, the i.e. not row for the treatment of at the correct position that counterweight 202 is installed on aerofoil 201
Naturally be returned under gravity when wind is discharged minimum point, gravitional force minimum at, thus closing air outlet 102.And
When needing air draft and discharging from air outlet 102, aerofoil 201 overcomes gravity to turn over around trip shaft 203 under the thrust treating air draft
Turn, thus producing gap so that treating that air draft can discharge (arrow referring to Fig. 2) by described gap from air port 102.In Fig. 2
Also show backstop 204, described backstop 204 can be arranged in bottom and/or the top of air outlet 102.By backstop 204, can
To prevent aerofoil 201 adverse movement, to move on the direction contrary with the direction of motion treating air draft.Because backstop 204 is permissible
Prevent the reverse deflection of aerofoil 201 so that being prevented from aerofoil 201 in the case of there is negative pressure indoors in the presence of negative pressure
Reversely deflection produces gap and outdoor air is got in and then offsets negative pressure.On the contrary, in the presence of negative pressure, aerofoil
201 are subject to bigger pressure due to outside, and more closely fitted with backstop 204 in the therefore lower end of aerofoil 201, thus effectively preventing
Only gas gets in, and safeguards indoor subnormal ambient.
In sum, by gravity self-locking exhaust door 102, do not introduce fresh air or discharge treat air draft in the case of, can
To realize the self-closed of each air door, pollute or stifled thus being effectively prevented pollutant or foreign body and air channel being entered by air door
Plug.
Following advantages are at least had according to the Multifunctional exhaust cabinet 100 of the present invention：(1) by adjustable brushless using rotating speed
DC fan 105, infinitely can adjust exhaust air rate by adjusting the rotating speed of brshless DC motor 105, thus eliminating high
Expensive valve system and complicated control flow, and the adjustability due to exhaust air rate, according to the Multifunctional exhaust cabinet of the present invention
100 can be used for multiple occasions, for example, be used for quick exclusion indoor pollutant or harmful substance, for example remain anesthetic gaseses, with
And for having the different medical environment of different negative pressure requirements；Simultaneously, it is possible to achieve energy-conservation, because using brushless DC blower
105 can save 30% electric energy compared with using AC blower fan；(2) pass through using gravity self-locking exhaust door 106, in the not row for the treatment of
In the case of wind, it is possible to achieve the self-closed of air outlet 102, thus being effectively prevented pollutant or foreign body by air outlet
102 entrance air channels 103 pollute or block；On the other hand, because backstop 204 can prevent the reverse deflection of aerofoil 201, make
There is negative pressure indoors in the case of be prevented from aerofoil 201 in the presence of negative pressure reversely deflection and so that outdoor air enters
Enter interior and then offset negative pressure, thus effectively safeguarding the subnormal ambient of interior, this gravity self-locking exhaust door need not be powered, and
It is swift in response, thus improving sealing effectiveness.
Although some embodiments of the present invention are described in present specification, to art technology
Personnel are it is readily apparent that these embodiments are merely possible to shown in example.It may occur to persons skilled in the art that it is numerous
Flexible program, replacement scheme and improvement project and without departing from the scope of the present invention.Appended claims are intended to limit this
Bright scope, and thereby cover the method and structure in the range of these claim itself and its equivalents.
Claims (5)
1. a kind of Multifunctional exhaust cabinet, has：
Air inlet, it treats air draft for introducing；
Air outlet, it treats air draft for discharge；
Air channel, air inlet is connected by it with air outlet treats air draft for guiding；
Brushless DC blower, its be arranged in air channel for introduction to treat air draft and will treat air draft to air outlet guide, wherein institute
The rotating speed stating brushless DC blower is adjustable；And
It is arranged in the gravity self-locking exhaust door in air outlet, described gravity self-locking exhaust door has：
Aerofoil, its size and air outlet match；
Trip shaft, it enables aerofoil to overturn around trip shaft through aerofoil；
Counterweight, it is arranged in one end of described aerofoil so that aerofoil keeps vertically to close air port in the case of not being subject to external force；
And
Backstop, it is arranged in the top of air outlet and/or bottom for preventing aerofoil from reversely deflecting.
2. Multifunctional exhaust cabinet according to claim 1, wherein said brushless DC blower is arranged in the noise elimination in air channel
In chamber.
3. Multifunctional exhaust cabinet according to claim 1, also has filter, its be used for treating air draft carry out cleaned
Filter.
4. the Multifunctional exhaust cabinet according to one of claims 1 to 3, wherein said brushless DC blower is FLH400 wind
Machine.
5. the Multifunctional exhaust cabinet according to one of claims 1 to 3, the rotating speed of wherein said brushless DC blower is
1000rmp to 1400rmp, the total head of described brushless DC blower is 220Pa to 425Pa, and described Multifunctional exhaust cabinet
Air quantity can be in 500m3/ h to 2000m3Change between/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977184.6A CN106440089A (en) | 2016-10-27 | 2016-10-27 | Multifunctional medical exhaust hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977184.6A CN106440089A (en) | 2016-10-27 | 2016-10-27 | Multifunctional medical exhaust hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106440089A true CN106440089A (en) | 2017-02-22 |
Family
ID=58180327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610977184.6A Pending CN106440089A (en) | 2016-10-27 | 2016-10-27 | Multifunctional medical exhaust hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453996A (en) * | 2018-11-20 | 2019-03-12 | 湖北友花茶业科技有限公司 | Air blower is used in a kind of screening of tealeaves |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170222 |