CN106016477A - Small fresh air fan - Google Patents
Small fresh air fan Download PDFInfo
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- CN106016477A CN106016477A CN201610622570.3A CN201610622570A CN106016477A CN 106016477 A CN106016477 A CN 106016477A CN 201610622570 A CN201610622570 A CN 201610622570A CN 106016477 A CN106016477 A CN 106016477A
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- air
- wind
- fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- 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
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- 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
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A small fresh air fan comprises a machine shell, an old air exhaust system, a fresh air system and a heat exchanger arranged between the old air exhaust system and the fresh air system, wherein the old air exhaust system and the fresh air system are arranged in the machine shell, the old air exhaust system comprises an old air suction area and an old air exhaust area which are separately arranged, the fresh air system comprises a fresh air suction are and a fresh air exhaust area which are separately arranged, a fresh air heat exchange outlet and a fresh air heat exchange inlet are correspondingly formed in the heat exchanger to form a fresh air channel, and an exhaust air heat exchange inlet and an exhaust air heat exchange outlet are correspondingly formed in the heat exchanger to form an exhaust air channel; the average wind velocity of the section of the heat exchanger is 0.7-1.1 m/s, and wind resistance is 90-120 Pa. The small fresh air fan is high in space utilization rate, low in noise, capable of preventing blocking, high in fresh air volume, high in comfort level, good in energy saving effect and high in exhaust efficiency, and high-efficiency operation of the whole machine can be ensured.
Description
Technical field
The present invention relates to technical field of air purification, a kind of small-sized new blower fan.
Background technology
In new building or existing building occasion (such as house, hotel, office building, market, school, toilet etc.), all can
There is the gas etc. of dust, dirt, mainly include physical hazard, chemical hazard, biohazard and anoxia harm.Wherein, physics danger
Evil mainly from power station, factory, the waste gas of automobile, containing substantial amounts of heavy metal.Chemical hazard is primarily referred to as the first in air
Aldehyde, benzene, toluene (essentially from finishing, the paint of furniture and adhesive etc.).Antibacterial that biohazard is primarily referred to as in air, disease
Poison, is flu, influenza and pneumonia, tracheitis, dermopathic main source, especially haze weather, and bacteria adherence is at dust
On, can survive more long, fly away farther.Anoxia harm is primarily referred to as living in for a long time anaerobic environment, can increase heart burden, and
Make blood circulation reduce, damage each organ healthy, child and old man are endangered the biggest.If it is long-time in above-mentioned environment
Life, the health of people is by by serious threat.Therefore, the health of indoor air quality appreciable impact people, comfortable and work
Make efficiency, increasingly paid close attention to by people.
Existing indoor are general all carrys out the air in clean room by installing fresh-air fan, can be by outdoor during fresh-air fan work
New wind suction chamber in, and indoor old wind is discharged to outdoor.But existing VMC (Ventilation Mechanical Control System) has the disadvantage that (1) is empty
Between utilization rate low, the position of each parts arranges unreasonable, and the volume causing new blower fan is the biggest；(2) noise is higher, unfavorable
In installing at home；(3) new wind air output is little, and windage is big, causes air-out uneven, and comfort level is low.
It addition, the exhaust system structure of existing new blower fan is arranged the most unreasonable, space can not obtain Appropriate application so that machine
It is the loosest that group structure is arranged, adds package size；And ventilation efficiency is low, noise is high, and heat recovery efficiency is low.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art to provide a kind of space availability ratio high, noise is low, anti-
Blocking, new wind air output is big, and comfort level is high, good energy-conserving effect, the small-sized new blower fan that ventilation efficiency is high.
The technical scheme is that a kind of small-sized new blower fan, the old wind exhaust system including casing, being located in casing and
VMC (Ventilation Mechanical Control System), and it is located at the heat exchanger between old wind exhaust system and VMC (Ventilation Mechanical Control System)；Described old wind exhaust system includes solely
Erect the old wind suction area and old wind discharge area put；Described VMC (Ventilation Mechanical Control System) includes that the new wind suction area being independently arranged and new wind are discharged
District；Described heat exchanger is provided with corresponding new wind heat exchange outlet and new wind heat switching access, forms fresh air channel；Heat is handed over
It is additionally provided with corresponding air exhaust heat switching access and air exhaust heat exchange outlet on parallel operation, forms air exhaust passage；Described heat exchanger
Cross section mean wind speed 0.7 ~ 1.1m/s, windage 90 ~ 120 Pa.
Further, the exhaust fan for indoor old wind being discharged to outdoor it is provided with in described old wind discharge area.
Further, described old wind suction area is made up of old wind inlet region, transition region and old wind outlet area three part.
Further, the vertical sectional shape of described old wind outlet area is triangular in shape or trapezoidal.
Further, the bottom of casing or the top of casing are located in described old wind inlet region.
Further, the vertical sectional shape of described old wind inlet region is triangular in shape.
Further, described transition region linearly type.
Further, the built-in low efficient filter for outdoor air is filtered in described new wind suction area, described thick effect
The outfan of filter is 0.6 ~ 1.5 with the cross section ratio of new wind heat switching access.
Further, the cross section mean wind speed of described low efficient filter is 0.7 ~ 1.1m/s, and windage is 5 ~ 10 Pa.
Further, described new wind discharge area is along the most built-in electrostatic precipitator of inlet air flow path, high efficiency particulate air filter and new
Wind blower fan.
Further, the input of described electrostatic precipitator is 0.6 ~ 1.5 with the cross section ratio of new wind heat exchange outlet.
Further, described high efficiency particulate air filter is horizontally set at the inwall both sides of casing.
Further, the spacing between described high efficiency particulate air filter and electrostatic precipitator is 40 ~ 80mm.
Further, the spacing between described high efficiency particulate air filter and fresh-air fan is 10 ~ 30mm.
Further, the cross section mean wind speed 0.7 ~ 1.1m/s of described electrostatic precipitator, windage 5 ~ 10 Pa.
Further, the cross section mean wind speed 0.4 ~ 0.5m/s of described high efficiency particulate air filter, windage 35 ~ 50 Pa.
Further, the hexagon being shaped as rule relatively of described heat exchanger, two faces that hexagon is the most parallel
Being respectively described air exhaust heat switching access and air exhaust heat exchange outlet, form air exhaust passage, two the most parallel faces are respectively
For the exchange outlet of described new wind heat and new wind heat switching access, form fresh air channel.
Further, described heat exchanger is vertically placed so that air exhaust heat switching access is located at heat with the exchange outlet of new wind heat
The upside of exchanger, air exhaust heat exchange outlet and new wind heat switching access are located at the downside of heat exchanger.
Further, it is provided with the CO of gas concentration lwevel in sensing chamber at described air exhaust heat switching access2Sensor and/
Or the humidity sensor for sensing chamber's humidity, the frequency of described fresh-air fan passes through CO2CO detected by sensor2Dense
Degree carries out frequency modulation control.
Further, the frequency modulation control method of described fresh-air fan comprises the following steps:
(1) gas concentration lwevel of predeterminable area in sensing chamber；
(2) when the gas concentration lwevel of indoor predeterminable area is more than or equal to higher limit, the frequency of fresh-air fan is improved；Indoor
When the gas concentration lwevel of predeterminable area is less than or equal to lower limit, reduce the frequency of fresh-air fan；When indoor predeterminable area
When gas concentration lwevel is between lower limit and higher limit, the frequency of regulation fresh-air fan is to predeterminated frequency.
Further, described step (2) specifically includes following steps:
(2-1) when the gas concentration lwevel of indoor predeterminable area is more than or equal to higher limit, after time delay a period of time, regulation is new
The frequency of wind blower fan makes it by 1Hz/ raising frequency per minute；
(2-2) when the gas concentration lwevel of indoor predeterminable area is less than or equal to lower limit-200ppm, time delay a period of time
After, the frequency of regulation fresh-air fan makes it by 1Hz/ frequency reducing per minute；
(2-3) when the gas concentration lwevel of indoor predeterminable area is between lower limit and higher limit, regulation fresh-air fan
Frequency is to predeterminated frequency.
Further, it is provided with the indoor temperature transmitter for detecting indoor temperature in described old wind suction area；Described new wind
Suction area is provided with the outdoor temperature sensor for detecting outdoor temperature；Described old wind discharge area is provided with for detecting temperature of outgoing air
Temperature of outgoing air sensor；Described new wind heat exchange exit is provided with for new after heat exchanger carries out energy exchange of detection
The new air temperature sensor of air temperature.
Further, described fresh-air fan and exhaust fan are DC fan, and the air quantity of described fresh-air fan is 50 ~
500m3/h；The rotor diameter of fresh-air fan is 120 ~ 300mm.
Further, the air quantity of described exhaust fan is 50 ~ 500 m3/h；The rotor diameter of exhaust fan is 120 ~ 200mm.
The present invention compared with prior art has a characteristic that
(1) by heat exchanger being set to its cross section mean wind speed 0.7 ~ 1.1m/s, windage 90 ~ 120 Pa, on the one hand can
Backwards calculation goes out the installation site between old wind exhaust system and VMC (Ventilation Mechanical Control System), on the basis ensureing space availability ratio, also
Higher heat recovery efficiency, air draft and the new air output of wind, old wind and the expulsion efficiency of new wind and less noise can be obtained；
On the other hand, heat exchanger is old wind exhaust system and the intermediate member of VMC (Ventilation Mechanical Control System), determines the operational factor of heat exchanger
Just can be greatly reduced workload, it is to avoid occur again doing over again the phenomenon designed；
(2) the cross section ratio of the outfan of low efficient filter with new wind heat switching access is set to 0.6 ~ 1.5, it is possible to decrease noise,
Improve the air output of VMC (Ventilation Mechanical Control System)；
(3) carry out secondary filter by being provided with electrostatic precipitator, infinitesimal dust-filtering to 98% can be made the second filtration
Device burden is little, and prevents the second plugged filter further, improves New atmosphere quality；
(4) three-stage filtration makes PM2.5 filter to more than 99.9%；
(5) heat-exchangers of the plate type is capable of the energy of more than 80% in new wind is carried out recuperation of heat；
(6) spacing between high efficiency particulate air filter and electrostatic precipitator is set to 40 ~ 80mm, noise can either be reduced, improve and
Air quantity, can alleviate again the pressure that high efficiency particulate air filter is born；
(7) by setting low efficient filter, electrostatic precipitator, the cross section mean wind speed of high efficiency particulate air filter and windage, on the one hand energy
Enough backwards calculation go out the installation site between these parts and distance, on the basis ensureing space availability ratio, moreover it is possible to obtain
Heat recovery efficiency, air draft and the new air output of wind that must be higher, old wind and the expulsion efficiency of new wind and less noise；Another
Aspect, along inlet air flow path, as long as there being parts not design, if position or parameter etc. are the most up to standard, Jiu Huiying
Ringing follow-up parts to run, according to above-mentioned parameter, the present embodiment can verify that all parts is the most up to standard, it is ensured that complete machine
High-efficiency operation；
(8) old wind suction area is divided into old wind inlet region, transition region and old wind outlet area three part, by transition region, plays flat
Slip over the effect crossed, indoor old wind can be alleviated and enter the pressure in heat exchanger；By the vertical sectional shape by old wind outlet area
Being designed to trapezoidal or triangle, form an expansion cavity, the old wind of old wind inlet region is compressed in transition region, then is exported through old wind
Expanded during district, it is possible to produce effective suction, make the old wind of indoor carry continuously, carry out energy friendship through heat exchanger
Change outside exhaust fan discharge chamber, be greatly improved ventilation efficiency；
(9) casing internal reasonable structural arrangement, is greatly saved space, reduces package size.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation of embodiment of the present invention heat exchanger.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the detailed construction of the present invention is further described.
As shown in Figure 1: a kind of small-sized new blower fan, the old wind exhaust system including casing 1, being located in casing 1 and new wind system
System, and it is located at the heat exchanger 5 between old wind exhaust system and VMC (Ventilation Mechanical Control System)；It is old that old wind exhaust system includes being independently arranged
Wind suction area 2 and old wind discharge area 3；VMC (Ventilation Mechanical Control System) includes the new wind suction area 4 that is independently arranged and new wind discharge area 6；Heat exchange
Device 5 is provided with corresponding new wind heat exchange outlet 53 and new wind heat switching access 54, forms fresh air channel；On heat exchanger 5
It is additionally provided with corresponding air exhaust heat switching access 52 and air exhaust heat exchange outlet 51, forms air exhaust passage；The cross section of heat exchanger 5
Mean wind speed 0.7 ~ 1.1m/s, windage 90 ~ 120 Pa.
The present embodiment by heat exchanger 5 being set to its cross section mean wind speed 0.7 ~ 1.1m/s, windage 90 ~ 120 Pa,
On the one hand backwards calculation the installation site between old wind exhaust system and VMC (Ventilation Mechanical Control System) can be gone out, at the base ensureing space availability ratio
On plinth, moreover it is possible to obtain higher heat recovery efficiency, air draft and the new air output of wind, old wind and the expulsion efficiency of new wind and relatively
Little noise；On the other hand, along inlet air flow path, as long as there being parts not design, position or parameter etc. do not reach
Target is talked about, and will affect follow-up parts and run, and heat exchanger is old wind exhaust system and the intermediate member of VMC (Ventilation Mechanical Control System), really
The operational factor reserving heat exchanger 5 just can be greatly reduced workload, it is to avoid occur again doing over again the phenomenon designed.
The old wind suction area 2 of the present embodiment is arranged along the sidewall of casing 1, it is possible to make the structure within casing 1 the compactest,
Reduce the volume of complete machine.Old wind suction area 2 is divided into old wind inlet region 21, transition region 22 and old wind outlet area 23 3 part, old
The bottom of casing 1 is located in wind inlet region 21.The vertical sectional shape of old wind inlet region 21 is triangular in shape, transition region 22 linearly type；
By arranging transition region 22, play the effect seamlessly transitted, indoor old wind can be alleviated and enter the pressure in heat exchanger 5；Pass through
The vertical sectional shape of old wind outlet area 23 being designed to right-angled trapezium, forms an expansion cavity, the old wind of old wind inlet region 21 exists
Transition region 22 is compressed, then is expanded when old wind outlet area 23, it is possible to produce effective suction, makes the old wind of indoor
Continuously conveying, carries out energy exchange outside exhaust fan 31 discharge chamber through heat exchanger 5, is greatly improved ventilation efficiency.
The old wind of old wind inlet region 21 can come from the contaminated high place of the air such as toilet, kitchen.
In the present embodiment, the built-in low efficient filter 7 for outdoor air is filtered in new wind suction area 4, slightly imitated
The outfan of filter 7 is designed as 0.6 ~ 1.5 with the cross section ratio of new wind heat switching access 54, why is designed as by this cross section ratio
0.6 ~ 1.5, be due to: if this cross section ratio is less than 0.6, i.e. the cross-sectional area of the outfan of low efficient filter 7 be much smaller than new wind
The area of the cross section of heat exchange entrance 54, so can be substantially reduced the filter effect of low efficient filter 7, and easily increase air intake
Noise, even reduces the cross section wind speed of low efficient filter 7, and then the new wind air-out effect of the new wind discharge area 6 that impact is below；If
This cross section ratio is more than 1.5, i.e. the cross-sectional area of the outfan of low efficient filter 7 is much smaller than the transversal of new wind heat switching access 54
The area in face, can increase windage, causes air output little.The present embodiment, according to aerodynamic characteristics rational deployment, is therefore selected and is cut
Face is the most suitable than 0.6 ~ 1.5, the cross section ratio preferably 1.2 of the present embodiment.
In the present embodiment, new wind discharge area 6 is along the most built-in electrostatic precipitator of inlet air flow path 8, high efficiency particulate air filter 9 and
Fresh-air fan 61.Electrostatic precipitator 8 is arranged at the top of new wind heat exchange outlet 53, and the input of electrostatic precipitator 8 is with new
The cross section ratio of wind heat exchange outlet 53 is 0.6 ~ 1.5.The design principle of this cross section ratio is with aforesaid low efficient filter 7, the most not
Repeat again.
The present embodiment uses three-stage filtration, particularly as follows: low efficient filter 7 is arranged at new wind entrance 41, main isolation flies
Worm, willow catkins flying in the air and larger particles dust etc., use stainless (steel) wire material, can repeatedly clean use；PM10 can be filtered to 70% left side
Right.Infinitesimal dust-filtering to 98% can be made high efficiency filter burden only 2%, the efficient mistake being greatly prolonged by electrostatic precipitator 8
In the use cycle of filter 9, save maintenance cost；If not having electrostatic precipitation between high efficiency filter, high efficiency particulate air filter 9 is quickly
Will block, strainability good also null(NUL) again, add electrostatic precipitator 8 and can prevent high efficiency particulate air filter 9 from blocking.High efficiency particulate air filter
Before 9 are positioned at fresh-air fan 61, using PTFE filtrate, windage is little, dust containing capacity is big, and on the basis of electrostatic precipitation, PM2.5 filters
Efficiency is up to more than 99.9%, is greatly improved New atmosphere quality.
Wherein, electrostatic precipitation is to be provided that 5-6kV electrostatic potential, to cleaner unit, makes electrostatic precipitator tungsten filament by high voltage power supply
Discharge high-pressure electrostatic continuously, allow the dust entering fresh-air fan 61 all become positively charged lotus, adsorbed by negative electricity flase floor immediately, can mistake
Filter the dust less than cell；Electrostatic tungsten filament high-pressure electrostatic simultaneously, moment kills antibacterial, virus, can prevent various influenza and
It passes through airborne disease.
In the present embodiment, high efficiency particulate air filter 9 is horizontally set at the inwall both sides of casing 1, and electrostatic precipitator 8 is the most laterally put
Putting, the spacing between high efficiency particulate air filter 9 and electrostatic precipitator 8 is 40 ~ 80mm.Why this spacing is set to 40 by the present embodiment
~ 80mm, be due to: if this is smaller than 40mm, then overstocking air-flow between high efficiency particulate air filter 9 and electrostatic precipitator 8 can quilt
Compression so that new wind can be increased by the resistance of high efficiency particulate air filter 9, and air draft has some setbacks；If this spacing is more than 80mm, the most easily account for
According to the space of casing 1, increase package size, cause the waste in space, and the loss of air quantity can be caused, reduce air output.This
Spacing between embodiment high efficiency particulate air filter 9 and electrostatic precipitator 8 is preferably 45mm.
Wherein, one end of electrostatic precipitator 8 is connected with the sidewall of casing 1, and the other end is terraced with the right angle of old wind outlet area 23
Shape end face connects, and this mounting structure is greatly improved the utilization rate of enclosure space.
The high efficiency particulate air filter 9 of the present embodiment, electrostatic precipitator 8 and low efficient filter 7 are clamp-close type and connect, it is simple to install
Dismounting and replacing.
The fresh-air fan 61 of the present embodiment is DC brushless motor, has the advantage that
(1) easily controllable, it is possible to achieve stepless speed control, speed adjustable range is wider, can freely regulate the air quantity output of VMC (Ventilation Mechanical Control System)；
(2) in speed regulation process, not changing the character of load in motor circuit, harmonic wave produces less, impacts electrical network little, more
Energy-conservation；(3) efficiency of motor is high: DC brushless motor uses permanent magnet to replace electrical excitation, the efficiency of non-brush permanent-magnet DC motor
95% can be reached, exceed 10% than the efficiency of motor in AC induction motor frequency conversion speed-adjusting system；(4) in running, temperature
Rise relatively low, lower by about 20% than AC induction motor frequency control；(5) governing system reliability is high, and dynamic property is good,
Not changing the character of circuit of load in speed regulation process, system is more stable；(6) power consumption about 20% can averagely be reduced.
The rotor diameter of the present embodiment fresh-air fan 61 is 200mm, and air quantity is 250m3/ h, air quantity is moderate, both will not improve
Power consumption, avoids again producing bigger noise.It addition, before by high efficiency particulate air filter 9 is placed in fresh-air fan 61, make through new wind wind
The air of machine 61 is converted to, through the clean new wind filtered, effectively prevent dust in air to be attached in fresh-air fan 61, and then
Reduce the fault rate of fresh-air fan 61, improve service life.
Spacing between high efficiency particulate air filter 9 and fresh-air fan 61 is 10 ~ 30mm, why this spacing is set to 10 ~
30mm, be due to: if this is smaller than 10mm, then pressure is excessive, easily causes high efficiency particulate air filter 9 and fresh-air fan 61 necessarily
Burden, and bigger noise can be produced；If this spacing is more than 30mm, on the one hand can increase package size, cause the wave in space
Take, on the other hand can reduce air output.Spacing between the present embodiment high efficiency particulate air filter 9 and fresh-air fan 61 is preferably 15mm,
Both ensure that air output, reduced noise, improve again space availability ratio.
The exhaust fan 31 of the present embodiment is also DC fan, in hgher efficiency for alternating current generator, averagely can subtract
Few power consumption about 20%.The rotor diameter of exhaust fan 31 is 130mm, takes up room little；Air quantity is 170m3/ h, air quantity is moderate, both
Power consumption will not be improved, avoid again producing bigger noise.
The heat exchanger 5 of the present embodiment is heat-exchangers of the plate type, and preferable shape is the hexagon of rule relatively；Hexagon its
In two parallel faces be respectively air exhaust heat switching access 52 and air exhaust heat exchange outlet 51, formed air exhaust passage, additionally phase
Two parallel faces are respectively described new wind heat exchange outlet 53 and new wind heat switching access 54, form fresh air channel.Air draft is led to
Road is completely isolated with fresh air channel, and air therebetween realizes recuperation of heat by cross flow one heat exchange, in efficient recovery air draft
Cold or heat, reduce room conditioning energy consumption.The heat exchanger 5 of the present embodiment uses aluminum laminate film material, compares existing
Master mode exchanger for, cross-contamination can be avoided.Specifically, heat exchanger 5 is vertically placed so that air exhaust heat switching access 52
With the upside that heat exchanger 5 is located in new wind heat exchange outlet 53, air exhaust heat exchange outlet 51 and new wind heat switching access 54 are located at
The downside of heat exchanger 5.
As shown in Figure 2: the present embodiment why by vertically arranged for heat exchanger 5, be because air exhaust heat switching access 52 with
Intersect one reticule 55 of generation in new wind heat exchange outlet 53 the two faces, air exhaust heat exchange outlet 51 and new wind heat switching access
Another reticule 56 of generation is intersected in 54 the two faces, is easy to be isolated by separator with other region at reticule.Such as,
Old wind discharge area 3 is by close 56 envelopes of reticule between separator 33 and air exhaust heat exchange outlet 51 and new wind heat switching access 54
Connect so that old wind discharge area 3 is completely isolated with new wind suction area 4；And old wind discharge area 3 is connected with this reticule 56, can
Space within Appropriate application casing 1 further, carries out reasonable Arrangement to its internal structure, reduces package size.The present embodiment
Reticule is utilized to isolate, can be while saving enclosure space, moreover it is possible to according to each portion of aerodynamic characteristics rational deployment
The position of part.It addition, one end of low efficient filter 7 is connected with the sidewall of casing 1, the other end is connected with separator 33, this peace
Assembling structure, is greatly improved the utilization rate of enclosure space.
The separator 33 of the present embodiment is water pond, for receiving the condensed water that heat exchanger 5 times drips, and no matter heat exchanger 5
How to place, water leakage situation all will not occur, protect life-span and the performance of other parts.
The inwall of casing 1 is filled with rubber and plastic warming plate, has the advantage such as sound-absorbing, heat insulation, fire-retardant, high temperature resistant, light weight, can keep away
Exempt from complete machine in running, to produce noise the life of people is caused certain interference.
In the present embodiment, the flow path of air draft is: indoor air enters to heat exchanger 5 through old wind suction area 2
Air exhaust passage carries out energy exchange, carries out neither endothermic nor exothermic for different seasons, and the old wind after energy exchange is arranged by old wind
Go out outside exhaust fan 31 discharge chamber in district 3.The flow path of new wind is: outdoor air enters heat exchange through low efficient filter 7
Device 5 carries out energy exchange, and the air that such as summer is outdoor becomes cold wind after heat exchanger, and winter, outdoor air was through heat exchange
Become hot blast after device, then through successively through electrostatic precipitator 8, high efficiency particulate air filter 9 and fresh-air fan 61 laggard enter indoor.The present embodiment
Air exhaust passage completely isolated with fresh air channel, air therebetween realizes recuperation of heat by cross flow one heat exchange, effectively returns
Receive the cold in exhaust system or heat, and then reduce room conditioning energy consumption；It addition, when new wind and old wind simultaneously enter heat exchange
Time in device, form the airflow convection heat exchange moved diagonally downward that the air-flow tilted upward to move is formed, UTILIZATION OF VESIDUAL HEAT IN with air draft
Efficiency is high, and energy-saving effect is much better than the heat exchanger of prior art.
Being provided with the indoor temperature transmitter 24 for detecting indoor temperature in old wind suction area 2, new wind suction area 4 is provided with use
Outdoor temperature sensor 42 in detection outdoor temperature；Old wind discharge area 3 is provided with the temperature of outgoing air for detecting temperature of outgoing air and passes
Sensor 32；It is provided with the new wind for detecting the new air temperature after heat exchanger carries out energy exchange at new wind heat exchange outlet 53
Temperature sensor 531.Comprehensive indoor temperature transmitter 24, outdoor temperature sensor 42, temperature of outgoing air sensor 32 and new pathogenic wind-warm
The degree sensor 531 detection to temperature, can calculate the real-time heat recovery efficiency of heat exchanger 5.
The CO of gas concentration lwevel in sensing chamber it is provided with at air exhaust heat switching access 542Sensor 541, and new wind wind
The frequency of machine 61 passes through CO2CO detected by sensor 5412Concentration carries out frequency modulation control.Concrete design principle is: due to
The increase of occupancy, amount of oxygen will reduce, and air freshness reduces, and this phenomenon can pass through CO2Concentration change embodies,
The i.e. change of air freshness and CO2The change of concentration is consistent, the good CO of air freshness2The lowest, the low then CO of air freshness2Dense
Degree is just high, and therefore the present embodiment devises " freshness automatic control " technology, it is ensured that room air pure and fresh and clean, has saved again energy
Consumption.Its technology is as follows:
Freshness automatic control technology is to utilize CO2Concentration carries out blower fan frequency modulation function.Inventor finds the CO of indoor Easy Living Envi-ronment2Dense
Indoor Easy Living Envi-ronment, all at below 1800ppm, is thus divided into three sections (high freshness, middle freshness, low freshnesss) by degree, high-new
The CO of freshness2Concentration is 800-1100ppm, the CO of middle freshness2Concentration is 1100-1400ppm, the CO of low freshness2Concentration
1400-1800ppm.Control system controls the frequency of fresh-air fan 61 according to the higher limit of every section, thus controls resh air requirement and protect
The freshness that card is indoor.Concrete control condition is as shown in table 1: the present embodiment is by CO2The higher limit of concentration is set as 1400 ppm,
Lower limit is set as 1100ppm.
Table 1
| CO2Concentration conditions | Fresh-air fan controls |
| CO2Concentration≤1100ppm-200ppm | After 60 seconds, fresh-air fan presses 1Hz/ frequency reducing per minute automatically until low-limit frequency |
| 1100ppm ＜ CO2Concentration ＜ 1400 ppm | Regulation is to setpoint frequency |
| CO2Concentration >=1400 ppm | After 60 seconds, 1Hz/ raising frequency per minute pressed by blower fan, until frequency (50Hz) upper limit；Work as CO2Concentration returns to lower limit-100ppm, and within 60 seconds, rear fan is down to setpoint frequency automatically |
In table 1, work as CO2During concentration height, Wind Volume can be added, it is ensured that indoor resh air requirement per capita, and at the few CO of people2Concentration low time
Wait, automatic frequency reducing, in addition to ensureing indoor the amount of fresh air per person, saved again energy consumption.
In the present embodiment, the cross section mean wind speed of low efficient filter 7 is 0.7 ~ 1.1m/s, and windage is 5 ~ 10 Pa；Electrostatic removes
The cross section mean wind speed 0.7 ~ 1.1m/s of dirt device 8, windage 5 ~ 10 Pa；The cross section mean wind speed 0.4 ~ 0.5m/ of high efficiency particulate air filter 9
S, windage 35 ~ 50 Pa.
The present embodiment, by setting above-mentioned parameter, on the one hand backwards calculation can go out the installation position between these parts
Put, distance and the design structure of each parts, on the basis ensureing space availability ratio, moreover it is possible to obtains higher recuperation of heat and imitate
Rate, air draft and the new air output of wind, old wind and the expulsion efficiency of new wind and less noise；On the other hand, along air stream
Dynamic path, as long as there being parts not design, if position or parameter etc. are the most up to standard, will affect follow-up parts fortune
OK, according to above-mentioned parameter, the present embodiment can verify that all parts is the most up to standard, it is ensured that the high-efficiency operation of complete machine.
The outer wall of casing 1 and indoor are mounted on infrared human body induction apparatus, from shutdown and shut down reservation air quantity with time delay people
Function, it is ensured that when having people, machine normally works, and indoor nobody time, machine quits work or with the blower fan lower limit set
Frequency is run, and reduces energy resource consumption.
The present invention can be obviously improved IAQ (indoor air quality), supplements new wind in time, and does not cause indoor temperature to rise and fall sharply and quickly,
Keep indoor temperature to stablize comfortable pleasant, be beneficial to the health of people.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, it is clear that those skilled in the art
Member can carry out various change modification without departing from the spirit and scope of the present invention to the present invention.If these of the present invention are repaiied
Change and belong within the scope of the claims in the present invention and equivalent technologies thereof with modification, belong to protection scope of the present invention.
Claims (10)
1. a small-sized new blower fan, the old wind exhaust system including casing, being located in casing and VMC (Ventilation Mechanical Control System), and it is located at old wind
Heat exchanger between exhaust system and VMC (Ventilation Mechanical Control System)；Described old wind exhaust system includes the old wind suction area that is independently arranged and old
Wind discharge area；Described VMC (Ventilation Mechanical Control System) includes the new wind suction area that is independently arranged and new wind discharge area；Described heat exchanger is provided with
Corresponding new wind heat exchange outlet and new wind heat switching access, form fresh air channel；It is additionally provided with corresponding on heat exchanger
Air exhaust heat switching access and air exhaust heat exchange outlet, form air exhaust passage；It is characterized in that, the cross section of described heat exchanger is average
Wind speed 0.7 ~ 1.1m/s, windage 90 ~ 120 Pa.
Small-sized new blower fan the most according to claim 1, it is characterised in that: it is provided with for by indoor in described old wind discharge area
Old wind be discharged to outdoor exhaust fan；Or described old wind suction area is by old wind inlet region, transition region and old wind outlet area
Three part compositions；Or the vertical sectional shape of described old wind outlet area is triangular in shape or trapezoidal；Or described old wind inlet region sets
In the bottom of casing or the top of casing；Or the vertical sectional shape of described old wind inlet region is triangular in shape；Or described transition
District's linearly type.
Small-sized new blower fan the most according to claim 1 and 2, it is characterised in that: described new wind suction area is built-in for room
Outer air carries out the low efficient filter filtered, and the outfan of described low efficient filter with the cross section ratio of new wind heat switching access is
0.6~1.5；Or the cross section mean wind speed of described low efficient filter is 0.7 ~ 1.1m/s, windage is 5 ~ 10 Pa.
Small-sized new blower fan the most according to claim 1, it is characterised in that: described new wind discharge area depends on along inlet air flow path
Secondary built-in electrostatic precipitator, high efficiency particulate air filter and fresh-air fan；Or the input of described electrostatic precipitator exchanges with new wind heat
The cross section ratio of outlet is 0.6 ~ 1.5；Or described high efficiency particulate air filter is horizontally set at the inwall both sides of casing；Or described efficiently
Spacing between filter and electrostatic precipitator is 40 ~ 80mm；Or the spacing between described high efficiency particulate air filter and fresh-air fan
It is 10 ~ 30mm；Or the cross section mean wind speed 0.7 ~ 1.1m/s of described electrostatic precipitator, windage 5 ~ 10 Pa；Or described efficiently
The cross section mean wind speed 0.4 ~ 0.5m/s of filter, windage 35 ~ 50 Pa.
Small-sized new blower fan the most according to claim 1 and 2, it is characterised in that: being shaped as of described heat exchanger is advised relatively
Hexagon then, the most parallel two faces of hexagon are respectively described air exhaust heat switching access and air exhaust heat exchange outlet,
Forming air exhaust passage, two the most parallel faces are respectively the exchange outlet of described new wind heat and new wind heat switching access, are formed
Fresh air channel；Or described heat exchanger is vertically placed so that air exhaust heat switching access is located at heat friendship with the exchange outlet of new wind heat
The upside of parallel operation, air exhaust heat exchange outlet and new wind heat switching access are located at the downside of heat exchanger.
Small-sized new blower fan the most according to claim 4, it is characterised in that: it is provided with for examining at described air exhaust heat switching access
Survey the CO of indoor carbon dioxide concentration2Sensor and/or the humidity sensor for sensing chamber's humidity, described fresh-air fan
Frequency passes through CO2CO detected by sensor2Concentration carries out frequency modulation control.
Small-sized new blower fan the most according to claim 6, it is characterised in that: the frequency modulation control method of described fresh-air fan includes
Following steps:
(1) gas concentration lwevel of predeterminable area in sensing chamber；
(2) when the gas concentration lwevel of indoor predeterminable area is more than or equal to higher limit, the frequency of fresh-air fan is improved；Indoor
When the gas concentration lwevel of predeterminable area is less than or equal to lower limit, reduce the frequency of fresh-air fan；When indoor predeterminable area
When gas concentration lwevel is between lower limit and higher limit, the frequency of regulation fresh-air fan is to predeterminated frequency.
Small-sized new blower fan the most according to claim 7, it is characterised in that: described step (2) specifically includes following steps:
(2-1) when the gas concentration lwevel of indoor predeterminable area is more than or equal to higher limit, after time delay a period of time, regulation is new
The frequency of wind blower fan makes it by 1Hz/ raising frequency per minute；
(2-2) when the gas concentration lwevel of indoor predeterminable area is less than or equal to lower limit-200ppm, time delay a period of time
After, the frequency of regulation fresh-air fan makes it by 1Hz/ frequency reducing per minute；
(2-3) when the gas concentration lwevel of indoor predeterminable area is between lower limit and higher limit, regulation fresh-air fan
Frequency is to predeterminated frequency.
Small-sized new blower fan the most according to claim 1 and 2, it is characterised in that: it is provided with for examining in described old wind suction area
Survey the indoor temperature transmitter of indoor temperature；Described new wind suction area is provided with the outdoor temperature sensing for detecting outdoor temperature
Device；Described old wind discharge area is provided with the temperature of outgoing air sensor for detecting temperature of outgoing air；Described new wind heat exchange exit sets
There is the new air temperature sensor for detecting the new air temperature after heat exchanger carries out energy exchange.
Small-sized new blower fan the most according to claim 1 and 2, it is characterised in that: described fresh-air fan and exhaust fan are
DC fan, the air quantity of described fresh-air fan is 50 ~ 500m3/h；The rotor diameter of fresh-air fan is 120 ~ 300mm；Or institute
The air quantity stating exhaust fan is 50 ~ 500 m3/h；The rotor diameter of exhaust fan is 120 ~ 200mm.
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|---|---|---|---|
| CN201610622570.3A CN106016477A (en) | 2016-08-02 | 2016-08-02 | Small fresh air fan |
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| CN201610622570.3A CN106016477A (en) | 2016-08-02 | 2016-08-02 | Small fresh air fan |
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| CN201610622570.3A Pending CN106016477A (en) | 2016-08-02 | 2016-08-02 | Small fresh air fan |
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| CN106482228A (en) * | 2016-12-08 | 2017-03-08 | 益阳市臻盛精密制造有限公司 | A kind of new blower fan of console model pipeline |
| CN107101353A (en) * | 2017-05-27 | 2017-08-29 | 远大洁净空气科技有限公司 | A kind of new blower fan of low noise |
| CN107101292A (en) * | 2017-06-27 | 2017-08-29 | 北京世纪天彩科技发展有限公司 | Highly effective air purification air equipment |
| CN107478270A (en) * | 2017-08-08 | 2017-12-15 | 毅科热交换器（上海）有限公司 | A kind of heat exchanger runs on-line monitoring system |
| CN108534311A (en) * | 2018-04-26 | 2018-09-14 | 广州艾思高能源科技有限公司 | A kind of fresh air adjusting method based on air fine particles |
| CN109579209A (en) * | 2018-12-04 | 2019-04-05 | 远大洁净空气科技有限公司 | A kind of new blower of more operational modes |
| CN109579208A (en) * | 2018-12-04 | 2019-04-05 | 远大洁净空气科技有限公司 | A kind of comfortable energy-saving fresh air machine and its adjusting method |
| CN109940000A (en) * | 2019-04-24 | 2019-06-28 | 伟通工业设备（江苏）有限公司 | UV curing anti fogging paint line use can be spaced the electrostatic precipitator that pressure accumulation washes away |
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| CN109579208A (en) * | 2018-12-04 | 2019-04-05 | 远大洁净空气科技有限公司 | A kind of comfortable energy-saving fresh air machine and its adjusting method |
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| CN109940000A (en) * | 2019-04-24 | 2019-06-28 | 伟通工业设备（江苏）有限公司 | UV curing anti fogging paint line use can be spaced the electrostatic precipitator that pressure accumulation washes away |
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Application publication date: 20161012 |