Fresh-air purifying equipment
Technical field
The utility model is related to a kind of fresh-air purifying equipment, and in particular to personnel's close quarters such as a kind of school, market
Fresh-air purifying equipment.
Background technology
At present, environmental pollution is still serious, and PM2.5, formaldehyde, sulfur dioxide, nitrogen oxides in air etc. are strong to human body
Health causes huge harm.Fresh air purifier introduces and purifies the oxygen content that outdoor air can ensure that interior, can be effective
Guarantor enjoy indoors totally, cleaning air.
On the one hand, the fresh air pipeline of traditional fresh air purifier is not independently arranged with the air duct of foul indoor,
And without heat exchange, thus purification of air and energy-saving effect still need to improve.For example, CN203899324U discloses a kind of air
Cleaning system, including fresh-air fan, circulated air blower fan, the first primarily efficient filter device, the second primarily efficient filter device and the 3rd purification
Device;The air outlet of the fresh-air fan and circulated air blower fan is connected with the air inlet of the 3rd purifier.And for example,
CN104456734A discloses a kind of fresh air formula air cleaner, including air cleaner body, the air cleaner body
Side be provided with return air inlet, the opposite side of the air cleaner body is provided with air outlet, the air cleaner body
Inner side be provided with purifier, blower fan is provided with the inside of the air cleaner body, the air cleaner body
Side is additionally provided with fresh air inlet;B blower fans are additionally provided with the inside of the air cleaner body;The air cleaner body
Side be additionally provided with B air outlets;Ajutage, B ajutages and the outdoor that setting is connected with the air cleaner body is entered
Airduct, wherein, the air side of the blower fan is sequentially connected logical with the air outlet, the ajutage;The air side of the B blower fans
It is sequentially connected with the B air outlets, the B ajutages logical;The outdoor blast pipe is connected with the fresh air inlet.
On the other hand, when people leaves interior carries out activity to outdoor, the protection of fresh air purifier is just lost, now room
Interior air purifier is in idle state, causes the waste of device resource.At present, people generally adopt after interior is left
The measure of the opposing air pollution for taking is band mouth mask.The mouth mask of low filtration grade is worn, effectively filtration can not be played a part of;
The mouth mask for wearing high filtration grade then brings larger respiratory resistance, not only affects the use feeling of human body, deeper danger
Evil is insulting respiratory system.Therefore, the equipment for being capable of clean air package is needed badly at present.
Utility model content
The purpose of this utility model there are provided a kind of fresh-air purifying equipment, and it can preferably purify the air of a room, together
When can realize the canned of pure air.It is of the present utility model it is a further objective that provide a kind of fresh-air purifying equipment, its
Good air purification effect, and good energy-conserving effect.
Inventors herein have recognized that following technical scheme can well realize above-mentioned purpose.
The utility model provides a kind of fresh-air purifying equipment, and it includes:
Fresh-air purifying equipment body, is separated into fresh air channel and room air return air channel, described fresh air inside it
Passage and described room air return air channel are independently arranged to ensure mutually to be not in contact with each other between fresh air and room air;
Heat exchanger, it is located at the middle part of the fresh-air purifying equipment body, and the fresh air channel described in being arranged on and institute
Between the room air return air channel stated, for carrying out heat exchange between fresh air and room air;
Outdoor air suction inlet, it is arranged on the bottom of the fresh-air purifying equipment body, and with the fresh air channel phase
Connection;
Pure air air outlet, it is arranged on the top of the fresh-air purifying equipment body, and with the fresh air channel phase
Connection;
Main purification fan, it is located in the fresh air channel, and is arranged on the top of the heat exchanger;
First filter element, it is located in the fresh air channel, and is arranged on the outdoor air suction inlet and the heat
Between exchanger, it is used to that first order purification will to be carried out from the fresh air of the outdoor air suction inlet;
Second filter element, it is located in the fresh air channel, and it is clean empty with described to be arranged on the main purification fan
Between gas air outlet, it is used to for the fresh air after heat exchange to carry out second level purification;
Room air return air inlet, it is arranged on the top of the fresh-air purifying equipment body, and returns with the room air
Wind passage is connected;
Indoor air discharge port, it is arranged on the middle part of the fresh-air purifying equipment body, and returns with the room air
Wind passage is connected;
Room air return air fan, it is located in the room air return air channel, and is arranged on the room air row
The lower section of gas port;
Clean air package chamber, it is arranged on the side of second filter element;With
Hand air pump formula compressing device, it is arranged in the clean air package chamber, for the storage of portable air
Tank supplies pure air.
According to fresh-air purifying equipment of the present utility model, it is preferable that the first described filter element is arranged on the outdoor
The top of air suction inlet, and it is arranged on the lower section of the heat exchanger.
According to fresh-air purifying equipment of the present utility model, it is preferable that the first described filter element include from the bottom to top according to
The first effect filter screen of secondary arrangement, active carbon filter screen and electrostatic precipitator;Wherein, just imitate filter screen, for filtering fresh air in particle diameter be 5 μm
Dust above and suspension;Active carbon filter screen, for removing fresh air in peculiar smell, and remove removing and harmful gas;And electrostatic precipitation
Device, for catching fresh air in contaminant particle, and kill bacterium and virus.
According to fresh-air purifying equipment of the present utility model, it is preferable that described electrostatic precipitator includes ionized region and dust
Area;The ionized region can make the contaminant particle in fresh air charged, and kill bacterium and virus;The accumulation area is used to receive
The charged contaminant particle of collection, and collect the bacterium and virus being killed.
According to fresh-air purifying equipment of the present utility model, it is preferable that the heat exchanger and the indoor air discharge port
It is oppositely arranged, wherein, the heat exchanger is arranged on the side of the fresh-air purifying equipment body, the indoor air discharge port
It is arranged on the opposite side of the fresh-air purifying equipment body.
According to fresh-air purifying equipment of the present utility model, it is preferable that the pure air air outlet is arranged on the fresh air
The top of cleaning equipment body, and the room air return air inlet is arranged on the top of the fresh-air purifying equipment body.
According to fresh-air purifying equipment of the present utility model, it is preferable that it is net that the second described filter element is arranged on the master
The top of wind transmission machine, and it is arranged on the lower section of the pure air air outlet;The second described filter element is arranged on the heat
The top of exchanger.
According to fresh-air purifying equipment of the present utility model, it is preferable that second filter element includes:
Fresh air filtration channel, it is hollow structure, and top closure, and its bottom is connected with the main purification fan;
Efficient filter, it is arranged on the periphery of the fresh air filtration channel, for being spread by the fresh air filtration channel
Second level purification is carried out to fresh air therein;It is more than 0.3 micron that the efficient filter is configured to remove particle diameter in fresh air
Particulate;
Pure air passage, it is arranged on the periphery of the efficient filter, and its bottom end closure, and its top is clean with described
Net air air outlet is connected, for collecting the pure air after the purification of the second level;The side wall of the pure air passage
Opening is provided with, it is connected with clean air package chamber.
According to fresh-air purifying equipment of the present utility model, it is preferable that the fresh-air purifying equipment also includes portable sky
Gas storage tank, it is arranged on the lower section of hand air pump formula compressing device.
According to fresh-air purifying equipment of the present utility model, it is preferable that carry buckle closure on described portable air reservoir,
Described buckle closure is breather valve.
The utility model is independently arranged fresh air channel and room air return air channel, it is to avoid the two mixing, thus can be with
Preferably purify the air of a room.The utility model carry pot-type equipment, it is possible to achieve pure air it is canned.It is of the present utility model
Fresh-air purifying equipment exchanges heat fresh air and room air, so as to energy-saving effect is good.Additionally, according to the preferred skill of the utility model
Art scheme, compact equipment of the present utility model, take up room it is little, it is easy for installation.
Description of the drawings
Fig. 1 is a kind of structural representation of fresh-air purifying equipment of the present utility model.
Description of reference numerals is as follows:
L is housing, and 2 is outdoor air suction inlet, and 3 are just effect filter screen, and 4 is active carbon filter screen, and 5 is electrostatic precipitator, and 6 are
Heat exchanger, 71 is fresh air filtration channel, and 72 is efficient filter, and 73 is pure air passage, and 8 is room air return air inlet, and 9 are
Pure air air outlet, 10 is hand air pump formula compressing device, and 11 is clean air package chamber, and 12 are the storage of portable air
Tank, purification fan based on 13,14 is indoor air discharge port, and 15 is indoor return air blower fan.
Specific embodiment
The utility model is further described with reference to specific embodiment, but protection domain of the present utility model is simultaneously
Not limited to this.
" equipment " of the present utility model is a kind of product, the i.e. system set of each device or unit.It is of the present utility model
Noun " tank " represents arbitrary container, as long as it can accommodate air.
Fresh-air purifying equipment of the present utility model include fresh-air purifying equipment body, heat exchanger, outdoor air suction inlet,
Pure air air outlet, main purification fan, the first filter element, the second filter element, room air return air inlet, room air row
Gas port and room air return air fan.Equipment of the present utility model can also include clean air package chamber and hand air pump formula pressure
Device of air;Optionally, also including portable air reservoir.
Fresh-air purifying equipment body interior of the present utility model is separated into fresh air channel and room air return air channel, institute
The fresh air channel and described room air return air channel stated be independently arranged with ensure fresh air (outdoor air) and room air it
Between be mutually not in contact with each other.Fresh-air purifying equipment of the present utility model is preferably body structure, so as to save floor occupying area.In this practicality
In new, by physically-isolated mode, fresh air channel and room air return air channel are separated, to avoid the two from carrying out thing
Mass transter.The utility model can be with using those physical isolation modes known in the art.Main purification fan of the present utility model,
First filter element and the second filter element are arranged in fresh air channel;Outdoor air suction inlet, pure air air outlet point
It is not connected with fresh air channel.Room air return air fan of the present utility model is disposed in the interior in air return air channel;It is indoor
Air return air inlet, indoor air discharge port are connected respectively with room air return air channel.
Heat exchanger of the present utility model is located at the middle part of the fresh-air purifying equipment body, and is arranged on described fresh air
Between passage and described room air return air channel.Heat exchanger of the present utility model is used to enter between fresh air and room air
Row heat exchange.For example, have in the room of heating installation in winter, warm room air carries out heat exchange to improve with ice-cold fresh air
New air temperature, so as to ensure indoor temperature with energy saving.And for example, in summer air-conditioned room, pleasantly cool room air
Heat exchange is carried out to reduce the temperature and humidity of fresh air, with damp and hot fresh air so as to ensure indoor temperature and humidity to save energy
Source.Heat exchanger of the present utility model can adopt efficient heat exchanger, such as tubular heat exchanger or heat-exchangers of the plate type.
Outdoor air suction inlet of the present utility model is arranged on the bottom of the fresh-air purifying equipment body, and new with described
Wind passage is connected.Outdoor air suction inlet of the present utility model is used to for outdoor air (fresh air) to import fresh air channel.At this
In utility model, it is preferable that the outdoor air suction inlet is arranged on the foot of the fresh-air purifying equipment body.So may be used
To save space.
Pure air air outlet of the present utility model is arranged on the top of the fresh-air purifying equipment body, and new with described
Wind passage is connected.Pure air air outlet of the present utility model is used to the pure air after purification is derived to interior.At this
In utility model, it is preferable that the pure air air outlet is arranged on the top of the fresh-air purifying equipment body.So can be with
Space is saved, and improves fresh air comfort level.
Main purification fan of the present utility model is located in the fresh air channel, and is arranged on the top of the heat exchanger.
Because the resistance of heat exchanger is larger, main purification fan is disposed there above.Fresh air flow velocity can so be improved.Main purification wind
Machine is to improve gas pressure by the mechanical energy of input to supply gas side by side the equipment of body.Generally, main purification fan by casing, main shaft,
Impeller, bearing transmission mechanism and motor etc. are constituted.Specific structure can using it is known in the art those.It is of the present utility model
Main purification fan is preferably frequency conversion type centrifugal fan.
First filter element of the present utility model is located in the fresh air channel, and is arranged on the outdoor air suction inlet
Between the heat exchanger.First filter element is net for will carry out the first order from the fresh air of the outdoor air suction inlet
Change.Due to environmental pollution, fresh air there may be in itself pollutant, it is therefore desirable to which fresh air is carried out into purified treatment.Preferably, institute
The first filter element stated is arranged on the top of the outdoor air suction inlet, and is arranged on the lower section of the heat exchanger.This
Sample clean-up effect more preferably, and prevents heat exchanger from blocking.According to a specific embodiment of the present utility model, described first
Filter element includes just effect filter screen, active carbon filter screen and electrostatic precipitator;Three is sequentially arranged from the bottom to top.Just effect filter screen also may be used
To be referred to as primary efficient filter screen, it is used to filter the dust and suspension that particle diameter in fresh air is more than 5 μm.Just effect filter screen includes plate
Filter screen is imitated at the beginning of filter screen, collapsible just effect filter screen or pocket type are imitated at the beginning of formula;Its outer frame material has paper frame, aluminium frame or zinc-plated chase;Its mistake
Filter material material has non-woven fabrics, nylon wire or metal hole pattern etc..Active carbon filter screen is also referred to as activated charcoal strainer, and it is used to remove newly
Peculiar smell in wind, and remove removing and harmful gas.Active carbon filter screen adopts aluminium honeycomb, plastic honeycomb or the paper honeycomb of through-hole structure to carry
Body.Peculiar smell of the present utility model includes but is not limited to stink etc..Pernicious gas includes but is not limited to toluene, dimethylbenzene, benzene class, phenol
Class, esters, aldehydes, sulfur dioxide and nitrogen oxides.Electrostatic precipitator of the present utility model is used to catch the pollutant in fresh air
Particulate, and kill bacterium and virus.According to a specific embodiment of the present utility model, electrostatic precipitator include ionized region and
Accumulation area, the ionized region can make the contaminant particle in fresh air charged and kill bacterium and virus, and the accumulation area is used for
The charged contaminant particle of collection and the bacterium being killed and virus.In electrostatic precipitator of the present utility model, high straightening
Stream power supply produces high-voltage electrostatic field, forms corona discharge.Ionized region catches in an efficient manner empty after making the particulate in air charged
Pollutant in gas;Charged particulate is reached and is attracted on opposite polarity collecting plate behind accumulation area;Meanwhile, electrostatic tungsten filament is released
6000 volts of high-pressure electrostatics are put, can completely be killed moment and be posted the bacterium and virus being attached on dust.
Second filter element of the present utility model is located in the fresh air channel, and is arranged on the main purification fan and institute
State between pure air air outlet.Second filter element is used to for the fresh air after heat exchange to carry out second level purification.According to
A specific embodiment of the present utility model, the second described filter element is arranged on the top of the main purification fan, and
It is arranged on the lower section of the pure air air outlet;And the second described filter element is arranged on the upper of the heat exchanger
Side.Second filter element includes efficient filter, and it is used to remove the particulate that particle diameter in fresh air is more than 0.3 micron.High-efficient filter
Net be also referred to as high efficiency particle air filter, a diameter of more than 0.3 micron of particle removal efficiency can reach 99.97% with
On.Efficient filter of the present utility model can using polypropylene filter paper, glass fibre, composite polypropylene-terylene filter paper, melt-blown wash
Synthetic fibre non-woven fabrics or melt-blown glass fibre.
Clean air package chamber of the present utility model is arranged on the side of second filter element, for pure air
Shunted.Hand air pump formula compressing device is arranged in the clean air package chamber, for portable air reservoir
Supply pure air.
In the utility model, it is preferable that second filter element includes fresh air filtration channel, efficient filter and cleaning
Air duct.Fresh air filtration channel is hollow structure, and top closure, its bottom is connected with the main purification fan, uses
In fresh air is imported into second filter element.Efficient filter is arranged on the periphery of the fresh air filtration channel, for will be by institute
Stating fresh air filtration channel and diffusing to fresh air therein carries out second level purification;The efficient filter is configured to remove in fresh air
Particle diameter is more than 0.3 micron of particulate.Pure air passage is arranged on the periphery of the efficient filter, and its bottom end closure,
Its top is connected with the pure air air outlet, for collecting the pure air after the purification of the second level.The cleaning
The side wall of air duct is provided with opening, and it is connected with clean air package chamber.One of pure air after the purification of the second level
Dividing can be exported to interior from pure air air outlet;Another part of pure air after the purification of the second level then can be with
Enter in portable air reservoir in the presence of the hand air pump formula compressing device being arranged in clean air package chamber.This
The setting of sample can further reduce the volume of fresh-air purifying equipment and save space, and can realize the tank of pure air
Dress.
In the utility model, the fresh-air purifying equipment can also include portable air reservoir, and it is arranged on hand
The lower section of cartridge type of taking offence compressing device.Buckle closure can also be carried on described portable air reservoir, described buckle closure is to exhale
Inhale valve.Portable air reservoir of the present utility model can adopt aluminum alloy material, reach the light purpose being convenient for carrying.
Room air return air inlet of the present utility model is arranged on the top of the fresh-air purifying equipment body, and with the room
Interior air return air channel is connected.Room air return air inlet of the present utility model is used to for room air to import fresh-air purifying equipment
Room air return air channel.Preferably, the room air return air inlet is arranged on the top of the fresh-air purifying equipment body,
Space can so be saved.
Indoor air discharge port of the present utility model is arranged on the middle part of the fresh-air purifying equipment body, and with the room
Interior air return air channel is connected.Indoor air discharge port of the present utility model is used to set room air from the fresh air purifying
It is standby to derive to outdoor.According to a specific embodiment of the present utility model, the heat exchanger is vented with the room air
Mouth is oppositely arranged, wherein, the heat exchanger is arranged on the side of the fresh-air purifying equipment body, the room air exhaust
Mouth is arranged on the opposite side of the fresh-air purifying equipment body.Such arrangement can save space, reduce fresh-air purifying equipment
Volume.
Room air return air fan of the present utility model is located in the room air return air channel, and is arranged on the room
The lower section of interior air exhaust port.The flow velocity of room air can so be improved.Air draft centrifugal blower is the mechanical energy by input
Improve gas pressure to supply gas side by side the plant equipment of body.Generally, room air return air fan is passed by casing, main shaft, impeller, bearing
Motivation structure and motor etc. are constituted.Specific structure can using it is known in the art those.Preferably, interior of the present utility model
Air return air fan is arranged on the middle part of the fresh-air purifying equipment body.According to a specific embodiment party of the present utility model
Formula, the heat exchanger is oppositely arranged with the room air return air fan, wherein, the heat exchanger is arranged on the fresh air
The side of cleaning equipment body, the room air return air fan is arranged on the opposite side of the fresh-air purifying equipment body.This
The arrangement of sample can save space, reduce the volume of fresh-air purifying equipment.
There is mass exchange in fresh-air purifying equipment to prevent fresh air and room air, on the ground that the two may cross
Side arranges some isolated parts, so as to ensure the independence of fresh air channel and room air return air channel.For example, in heat exchanger
Top and bottom be respectively provided with isolated part;Indoors isolated part is set between air return air fan and the first filter element;
Indoors isolated part is set between air exhaust port and main purification fan.And for example through the direct quilt of room air of heat exchanger
Room air return air fan is derived from indoor air discharge port, for example, implemented by pipeline.Isolated part bag of the present utility model
Include but be not limited to division board.
Embodiment 1
Fig. 1 is a kind of structural representation of fresh-air purifying equipment of the present utility model.Fresh air purifying of the present utility model sets
It is standby to include housing 1, outdoor air suction inlet 2, pure air air outlet 9, main purification fan 13, the first filter element, the second mistake
Filter unit, heat exchanger 6, room air return air inlet 8, room air return air fan 15, indoor air discharge port 14, hand air pump
Formula compressing device 10 and clean air package chamber 11.
The inside of housing 1 is separated into fresh air channel and room air return air channel, and the two is independently arranged to ensure fresh air
Mutually it is not in contact with each other and room air between.Main purification fan 13, the first filter element and the second filter element are arranged at fresh air
In passage;Outdoor air suction inlet 2, pure air air outlet 9 are connected respectively with fresh air channel.Room air return air fan 15
It is disposed in the interior in air return air channel;Room air return air inlet 8, indoor air discharge port 14 are logical with room air return air respectively
Road is connected.Heat exchanger 6 is located at the middle part of housing 1, and is arranged between fresh air channel and room air return air channel, its use
Heat exchange is carried out between fresh air and room air.The heat exchanger 6 of the present embodiment is tubular heat exchanger.
Outdoor air suction inlet 2 is arranged on the foot of housing 1, for fresh air to be imported into fresh air channel.Pure air goes out
Air port 9 is arranged on the top of housing 1, for the fresh air after purification to be derived to interior.Main purification fan 13 is located at fresh air channel
It is interior, and it is arranged on the top of heat exchanger 6.Fresh air flow velocity can so be improved.
First filter element can provide first order purification for fresh air, and it includes the first effect filter screen being sequentially arranged from the bottom to top
3rd, active carbon filter screen 4 and electrostatic precipitator 5.First filter element is located in the fresh air channel, is disposed in the outdoor air suction
The top of mouth 2, and it is arranged on the lower section of heat exchanger 6.So clean-up effect is more preferable, and prevents heat exchanger from blocking.Just effect filter
Net 3 can filter dust and the suspension that particle diameter in fresh air is more than 5 μm.Active carbon filter screen 4 can remove the peculiar smell in fresh air,
And remove removing and harmful gas.Electrostatic precipitator 5 can catch the contaminant particle in fresh air, and kill bacterium and virus.
Second filter element can provide second level purification for fresh air, and it includes fresh air filtration channel 71, efficient filter 72
With pure air passage 73.Second filter element is located in fresh air channel, and is arranged on top and the cleaning of main purification fan 13
The lower section of air air outlet 9;And the second filter element is arranged on the top of heat exchanger 6.Fresh air filtration channel 71 is hollow
Structure, and top closure, its bottom is connected with main purification fan 13, for fresh air to be imported into the second filter element.Efficiently
Filter screen 72 is arranged on the periphery of fresh air filtration channel 71, for the fresh air by efficient filter 72 is diffused to by fresh air filtration channel 71
Carry out second level purification.Efficient filter 72 can remove the particulate that particle diameter in fresh air is more than 0.3 micron.Pure air passage 73
The periphery of efficient filter 72, and bottom end closure are arranged on, its top is connected with pure air air outlet 9, for collecting Jing
The fresh air crossed after the purification of the second level.The side wall of pure air passage 73 is provided with the opening being connected with clean air package chamber 11.
Hand air pump formula compressing device 10 is arranged in clean air package chamber 11, for supplying to portable air reservoir 12 (aluminum)
To pure air.
Room air return air inlet 8 is arranged on the top of housing 1, and room air can be imported the room of fresh-air purifying equipment for it
Interior air return air channel.Indoor air discharge port 14 is arranged on the middle part of housing 1, can be by room air from fresh-air purifying equipment
Derive to outdoor.Heat exchanger 6 is oppositely arranged with indoor air discharge port 14, and heat exchanger 6 is arranged on the one of housing 1
Side, indoor air discharge port 14 is arranged on the opposite side of housing 1.Room air return air fan 15 is located at room air return air channel
It is interior, and it is disposed in the interior the lower section of air exhaust port 14.Fresh air flow velocity can so be improved.Room air return air fan 15 is arranged
At the middle part of housing 1, heat exchanger 6 is oppositely arranged with room air return air fan 15, and heat exchanger 6 is arranged on housing 1
Side, room air return air fan 15 is arranged on the opposite side of housing 1.
There is mass exchange in fresh-air purifying equipment to prevent fresh air and room air, in the upper end of heat exchanger 6
Isolated part is respectively provided with lower end;Arrange between the electrostatic precipitator 5 of the filter element of air return air fan 15 and first indoors
Isolated part;Directly led from indoor air discharge port 14 by room air return air fan 15 through the room air of heat exchanger 6
Go out.
The running of fresh-air purifying equipment of the present utility model is below described.In the presence of main purification fan 13, come
It is imported in the fresh air channel of housing 1 by outdoor air suction inlet 2 from outdoor fresh air, sequentially passes through just effect filter screen 3, activated carbon
Filter screen 4 and electrostatic precipitator 5, complete first order purification.Through the first order purification fresh air in heat exchanger 6 with room air
Complete heat exchange.Fresh air after heat exchange is entered in fresh air filtration channel 71, then after the second level purification of efficient filter 72,
Into pure air passage 73, then derive to interior from pure air air outlet 9.Part cleaning in pure air passage 73
Air is entered in clean air package chamber 11, and pure air is pressed into portable air reservoir by hand air pump formula compressing device 10
12.The portable air reservoir 12 can be removed, and the people for leaving interior continues to enjoy pure air.Air return air indoors
In the presence of blower fan 15, room air is imported into room air return air channel by room air return air inlet 8, in heat exchanger 6
Heat exchange is completed with fresh air.Room air after heat exchange is derived from indoor air discharge port 14.
Embodiment 2
In addition to setting up isolated part between air exhaust port 14 and main purification fan 13 indoors, other conditions and portion
Part is same as Example 1.
The utility model is not limited to above-mentioned embodiment, in the case of without departing substantially from flesh and blood of the present utility model,
It may occur to persons skilled in the art that any deformation, improvement, replacement each fall within scope of the present utility model.