CN105890070B - The dehumidification fresh air group and air conditioning method of more condensers and double back wind bypass - Google Patents
The dehumidification fresh air group and air conditioning method of more condensers and double back wind bypass Download PDFInfo
- Publication number
- CN105890070B CN105890070B CN201610383924.3A CN201610383924A CN105890070B CN 105890070 B CN105890070 B CN 105890070B CN 201610383924 A CN201610383924 A CN 201610383924A CN 105890070 B CN105890070 B CN 105890070B
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- heat exchanger
- air
- indoor
- interior
- fresh air
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 21
- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 230000000576 supplementary Effects 0.000 claims abstract description 44
- 238000009833 condensation Methods 0.000 claims abstract description 34
- 230000005494 condensation Effects 0.000 claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 239000003570 air Substances 0.000 claims description 189
- 238000001816 cooling Methods 0.000 claims description 24
- 238000010521 absorption reactions Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000009834 vaporization Methods 0.000 claims description 9
- 238000004781 supercooling Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000034 methods Methods 0.000 claims description 3
- 238000003303 reheating Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000002699 waste materials Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reactions Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagrams Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000000203 mixtures Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011901 water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The dehumidification fresh air group and air conditioning method of a kind of more condensers of the present invention and double back wind bypass, including air-supply passage, air exhaust passage；It is equipped with First Heat Exchanger, pressure fan successively at air-supply passage；It is equipped with the second heat exchanger, exhaust blower successively at air exhaust passage；Second heat exchanger connects supplementary heat exchanger, and the first return air by-passing valve and the second return air by-passing valve are equipped between air-supply passage and air exhaust passage.The second heat exchanger is used as condenser when the present invention is freezed, and is condensed refrigerant using the air draft of indoor lower temperature, reduces unit condensation temperature, and mixed with cold air distribution using bypass return air in air-supply side and carry out cold consumption caused by reheating avoids cold-hot counteraction；In heating under circulation pattern, outdoor unit can be opened and quickly improve indoor environment temperature；Under outer circulation pattern, the second heat exchanger is used as evaporator, so that refrigerant is evaporated using the heat of indoor exhaust wind, improves the evaporating pressure and heating capacity of unit, reduces the power consumption of unit and avoid the risk of unit frosting.
Description
Technical field
The present invention relates to air conditioning and technical field of energy utilization, espespecially a kind of more condensers and double back wind bypass remove
Wet Fresh air handling units and air conditioning method.
Background technology
In the prior art, the condensation heat of usual air-conditioner set is up to 1.15~1.3 times of refrigerating capacity, a large amount of condensation heat
It can be directly discharged into air, and only rely on outdoor high temperature air to be condensed to it, not only condensation effect is bad, but also these
Distributing and ambient temperature being increased for heat, causes serious environmental thermal pollution, while this partial heat again can be in vain
It loses, causes larger energy waste.If the condensation heat that air-conditioner set is released is recycled, and utilize indoor exhaust wind
Temperature is relatively low in summer, winter higher feature, as the main Cooling and Heat Source of unit, can not only reduce condensation heat to ring
Pollution caused by border, but also be a kind of energy conservation measure turned waste into wealth.
Traditional fresh air dehumidifier to condensation heat using mainly reheating is carried out to the fresh air after cooling and dehumidifying, although solution
It has determined and has generated huge energy consumption problem by electrical heating, but counteracted the part refrigeration of unit to a certain extent using condensation reheating
Amount, the counteracting of cold and hot amount cause the waste of the energy；To the use aspects of condensation heat, some scholars propose outdoor air-cooled condensation
Device air draft side disposed within, in winter when, using the air draft of indoor higher temperature as the heat source of unit, solve Winter heat supply
Insufficient drawback, but bring a new problem, i.e., in summer, refrigerating capacity is difficult to meet the requirements again, only leans on indoor exhaust wind
It is far from being enough again as low-temperature receiver.
For this purpose, there is an urgent need for a kind of appearance of novel dehumidifier, to solve the problems, such as above-mentioned attend to one thing and lose sight of another.
Invention content
The dehumidification fresh air group bypassed the object of the present invention is to provide a kind of more condensers and double back wind and air conditioning side
Method can reduce condensation temperature under cooling condition, and avoid counteracting part refrigerating capacity because of condensation reheating；It can under heating condition
Cycle in unit is separated with outer circulation both of which, when recycling inside, can quickly and effectively improve indoor environment temperature,
In outer circulation, evaporating temperature can be improved, reduce the energy consumption of unit, while avoiding the risk of frosting.
Technical solution provided by the invention is as follows：
A kind of dehumidification fresh air group of more condensers and double back wind bypass, including：
The air-supply passage of outdoor fresh air, the air exhaust passage of indoor exhaust wind；
At the air-supply passage, it is equipped with successively along the flow direction of air：Fresh air air door has both condensation and vaporization function
First Heat Exchanger, pressure fan；
At the air exhaust passage, it is equipped with successively along the flow direction of air：Have both condensation and vaporization function second is changed
Hot device, exhaust blower；
Second heat exchanger is further connected in parallel a supplementary heat exchanger for having both condensation and vaporization function, the auxiliary
Heat exchanger is set in the outdoor unit of the dehumidification fresh air group；
Between the air-supply passage and the air exhaust passage, it is equipped with successively along the flow direction of indoor exhaust wind：First return air
By-passing valve and the second return air by-passing valve；
Under cooling condition, the First Heat Exchanger makees evaporator use, and second heat exchanger makees condenser use, institute
It states supplementary heat exchanger and makees auxiliary condenser use, the first return air by-passing valve is opened, and the second return air by-passing valve is closed；
In the air-supply passage, outdoor fresh air flows through the dehumidifying that is cooled after the First Heat Exchanger used as evaporator, afterwards with it is logical
The part return air for crossing the first return air by-passing valve is mixed, and wind pushing temperature, which increases, is sent into interior；In the air exhaust passage,
Indoor exhaust wind heats up after flowing through second heat exchanger used as condenser and interior is discharged；Wherein, the auxiliary heat-exchanging
Device carries out auxiliary condensation to second heat exchanger；
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：First heat exchange
Device makees condenser use, and the supplementary heat exchanger makees evaporator use, and second heat exchanger is closed, the first return air bypass
Valve is closed, and the second return air by-passing valve is opened, and the fresh air air door is closed, and the exhaust blower is closed；In the air-supply passage
In, indoor return air enters air-supply passage by the second return air by-passing valve, then flows through described first used as condenser and changes
It heats up after hot device and is admitted to interior；Wherein, in the outdoor supplementary heat exchanger inner refrigerant heat absorption used as evaporator
Evaporation；
When indoor temperature reaches predetermined temperature value, into outer circulation pattern：The First Heat Exchanger makees condenser use,
Second heat exchanger makees evaporator use, and the supplementary heat exchanger is closed, the first return air by-passing valve and second time described
Wind by-passing valve is turned off, and the exhaust blower is opened, and the fresh air air door is opened；In the air-supply passage, outdoor fresh air flows through
It heats up after the First Heat Exchanger used as condenser and is admitted to interior；In the air exhaust passage, indoor exhaust wind stream
Cool down after second heat exchanger used as evaporator and interior is discharged；Wherein, the second heat exchanger inner refrigerant
Heat absorption evaporation.
Preferably, a wet-film humidifying module is further set at the air-supply passage, is closed under cooling condition；
Under heating condition, outer circulation pattern, after outdoor fresh air flows through the First Heat Exchanger, passes through the wet film and add
It is sent into after wet module is humidified indoor；
In heating condition under circulation pattern, the wet-film humidifying module is closed.
Preferably, the inlet of the air-supply passage also sets up one first filter screen, under refrigerating state, outdoor fresh air or
In heating condition under circulation pattern, flowed through by the indoor return air in the first return air by-passing valve inflow air-supply passage described
After first filter screen, then it is indoor through First Heat Exchanger feeding.
Preferably, the air exhaust passage inlet be arranged one second filter screen, under refrigeration situation and heating situation
Lower indoor return air or air draft, which all need to flow through second filter screen, to be filtered.
Preferably, first solenoid valve of the supplementary heat exchanger connection one for controlling the opening and closing of its access；
When entering interior circulation pattern under cooling condition and under the heating condition, first solenoid valve is opened, described
The access of supplementary heat exchanger is opened；
When entering outer circulation pattern under heating condition, first solenoid valve is closed, the access of the supplementary heat exchanger
It closes.
Preferably, second solenoid valve of the second heat exchanger connection one for controlling the opening and closing of its access；
When entering outer circulation pattern under cooling condition and under the heating condition, the second solenoid valve is opened, described
The access of second heat exchanger is opened；
When entering interior circulation pattern under heating condition, the second solenoid valve is closed, the access of second heat exchanger
It closes.
Preferably, the first electric expansion valve, the second electronics are equipped between the First Heat Exchanger and second heat exchanger
Expansion valve；
The first electric expansion valve, auxiliary electron expansion valve are equipped between the First Heat Exchanger and the supplementary heat exchanger；
Under cooling condition, the auxiliary electron expansion valve is opened completely, and first electric expansion valve is opened and passed through
The suction superheat for the First Heat Exchanger that its size extent control opened is used as evaporator, second electronics are swollen
Swollen valve is opened and by the degree of supercooling of the second heat exchanger described in the size extent control of its unlatching；
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：First electronics
Expansion valve fully opens, and second electric expansion valve is closed, and the auxiliary electron expansion valve is opened and by the big of its unlatching
The suction superheat for the supplementary heat exchanger that small extent control is used as evaporator；
When indoor temperature reaches predetermined temperature value, into outer circulation pattern：First electric expansion valve fully opens,
The auxiliary electron expansion valve is closed, and second electric expansion valve is opened and is used as steaming by the size extent control of its unlatching
The suction superheat for second heat exchanger that hair device uses.
The present invention also provides a kind of air conditioning methods, are removed using what more condensers described above and double back wind bypassed
Wet Fresh air handling units, the air conditioning method include：
Under cooling condition, be cooled dehumidifying after the First Heat Exchanger of the outdoor fresh air through being used as evaporator, after
It is mixed with the part return air by the first return air by-passing valve, wind pushing temperature, which increases, is sent into interior；Indoor exhaust wind is made
It heats up after second heat exchanger used for condenser and interior is discharged, wherein the supplementary heat exchanger is changed described second
Hot device carries out auxiliary condensation；Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：Room
Interior return air enters air-supply passage by the second return air by-passing valve, is then risen after the First Heat Exchanger through being used as condenser
Temperature is simultaneously admitted to interior；Wherein, it absorbs heat and evaporates in the outdoor supplementary heat exchanger inner refrigerant used as evaporator；Work as room
When interior temperature reaches predetermined temperature value, into outer circulation pattern：The First Heat Exchanger makees condenser use, and outdoor fresh air flows through
It heats up after the First Heat Exchanger used as condenser and is admitted to interior；Indoor exhaust wind, which is flowed through, to be used as evaporator
Cool down after second heat exchanger and interior is discharged；Wherein, the second heat exchanger inner refrigerant heat absorption evaporation.Preferably, exist
Under heating condition outer circulation pattern, outdoor fresh air heats up through the First Heat Exchanger, is sent after being further carried out humidification process
Enter interior.
The dehumidification fresh air group and air conditioning method of more condensers and double back the wind bypass provided through the invention, can
Bring following at least one advantageous effect：
1, for the present invention during cooling in summer pattern use, outdoor fresh air passes through work after filtering in air-supply passage
For the First Heat Exchanger cooling and dehumidifying that evaporator uses, reach required moisture content values, then with by out of air exhaust passage
The part return air for flowing through the first return air by-passing valve is mixed, and wind pushing temperature increases and is sent into interior；Indoor exhaust wind is logical in air draft
In road, by being used as the second heat exchanger that condenser uses, (the second heat exchanger makes as main condenser herein after primary filter
With) and take away condensation heat, air themperature increases, and discharge is indoor.Wherein, by using the air draft of indoor lower temperature, by high temperature
Refrigerant condenses, and effectively reduces the condensation temperature of unit, while being mixed with cold air distribution using bypass return air and carrying out reheating,
Cold consumption caused by avoiding cold-hot counteraction.
The present invention is in winter during heating mode use, when indoor temperature is not up to predetermined temperature value, outdoor auxiliary
Heat exchanger is opened, and the second heat exchanger is closed, and system enters interior circulation pattern, and the effect of First Heat Exchanger and supplementary heat exchanger is mutual
It changes, First Heat Exchanger is used as condenser, and supplementary heat exchanger is used as evaporator.Indoor return air is bypassed by the second return air
Valve enters in air supply duct, and by the First Heat Exchanger used as condenser, after absorption condensation heat, temperature increases, and is sent into room
It is interior；Meanwhile it can quickly improve indoor environment temperature by opening supplementary heat exchanger.
When indoor temperature reaches predetermined temperature value, outdoor auxiliary condenser is closed, and the second heat exchanger is opened, into following outside
Ring mode, the exchange roles of First Heat Exchanger and the second heat exchanger, First Heat Exchanger are used as condenser, and the second heat exchanger is made
It is used for evaporator.Outdoor fresh air heats up after flowing through the First Heat Exchanger used as condenser and is admitted to interior；
In the air exhaust passage；The second heat exchanger that indoor exhaust wind is used by being used as evaporator after filtering, temperature reduce, and room is discharged
It is interior, and in low-temperature refrigerant absorption chamber exhaust airflow heat, evaporated, since temperature is high than outdoor for indoor exhaust wind temperature,
Therefore the evaporating pressure of heating system is improved, the heating capacity of unit is improved, the power consumption of unit is reduced and avoids machine
The risk of group frosting.
2, the present invention condenses high temperature refrigerant using the air draft of indoor lower temperature in refrigeration, reduces unit
Condensation temperature, be utilized the sensible heat portion of energy of indoor exhaust wind at this time, while also utilizing part bypass return air and cold air distribution
Mixing carries out reheating, avoids cold consumption caused by cold-hot counteraction；And in refrigeration, indoor second heat exchanger is (as master
Condenser) and outdoor supplementary heat exchanger be applied in combination, high temperature refrigerant is condensed jointly；And when heating, including unit
It being switched between cycle and outer circulation pattern, interior cycle can quickly and effectively improve indoor temperature, and in outer cyclic module
Under formula, the air draft of indoor higher temperature improves the evaporating temperature of unit as heat source, the second heat exchange used as evaporator
The heat that device absorbs indoor exhaust wind is evaporated, and since the dew-point temperature of indoor exhaust wind is higher, and evaporating temperature is with respect to air draft
Dew-point temperature is relatively low, therefore has condensed water precipitation in the second heat exchanger surface, and what is recycled at this time is not only the sensible heat of indoor exhaust wind
Portion of energy, while also having recycled the latent heat portion of energy of indoor exhaust wind.To make full use of the energy of indoor exhaust wind, save
The about energy.
3, under heating condition outer circulation pattern, outdoor fresh air adds after First Heat Exchanger heats up using wet film the present invention
Wet module, makes air humidity be promoted, and further meets indoor humidity requirement, improves environmental amenity degree.
4, the present invention is under cooling condition, the suction superheat size of First Heat Exchanger by the first electric expansion valve aperture
It controls, the degree of supercooling size of the second heat exchanger controls by the aperture of the second electric expansion valve；In heating condition, interior cyclic module
Under formula, the suction superheat size of supplementary heat exchanger is controlled by the aperture of auxiliary electron expansion valve；In heating condition, outer circulation
Under pattern, the suction superheat of the second heat exchanger is controlled by the aperture of the second electric expansion valve, improves spirit in actual use
Activity.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to a kind of more condensers and double back
Wind bypass dehumidification fresh air group and air conditioning method above-mentioned characteristic, technical characteristic, advantage and its realization method give into
One step explanation.
Fig. 1 is a kind of schematic diagram of embodiment of the dehumidification fresh air group of the more condensers of the present invention and double back wind bypass.
Drawing reference numeral explanation：
A, air-supply passage；B, air exhaust passage；C, outdoor unit；
1, compressor；2, the second heat exchanger；3, supplementary heat exchanger；4, First Heat Exchanger；5, the first electric expansion valve；6,
Two electric expansion valves；7, auxiliary electron expansion valve；8, second solenoid valve；9, the first solenoid valve；10, the first filter screen；11, second
Filter screen；12, pressure fan；13, exhaust blower；14, four-way reversing valve；15, the first return air by-passing valve；16, the second return air by-passing valve；
17, wet-film humidifying module；18, fresh air air door.
Specific implementation mode
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, control is illustrated below
The specific implementation mode of the present invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, so that simplified form is easy to understand, there is identical structure or function in some figures
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
In the embodiment one of the more condensers of the present invention and the dehumidification fresh air group of double back wind bypass, referring to Fig.1, dehumidifying is new
Blower fan group includes：The air exhaust passage B of the air-supply passage A of outdoor wind, indoor wind.Wherein, air-supply passage A is outdoor new for being sent into
Wind, air exhaust passage B is for being discharged indoor exhaust wind.At air-supply passage A, it is equipped with successively along the flow direction of air：Have both condensation
With the First Heat Exchanger 4 of vaporization function, for outdoor fresh air to be sent into indoor pressure fan 12.At air exhaust passage B, along air
Flow direction be equipped with successively：Have both the second heat exchanger 2 of condensation and vaporization function and for indoor wind to be discharged to outdoor row
Wind turbine 14；Second heat exchanger is further connected in parallel a supplementary heat exchanger 3 for having both condensation and vaporization function, supplementary heat exchanger 3
It is set in the outdoor unit C of dehumidification fresh air group.Simultaneously between air-supply passage A and air exhaust passage B, along the flowing of indoor exhaust wind
Direction is equipped with the first return air by-passing valve 15 and the second return air by-passing valve 16 successively, passes through the first return air by-passing valve 15 of setting and the
The realization of two return air by-passing valves 16 is recycled a part of indoor exhaust wind in air exhaust passage B.
Under cooling condition, First Heat Exchanger 4 makees evaporator use, and the second heat exchanger 2 makees condenser use, auxiliary heat-exchanging
Device 3 is used as auxiliary condenser, and the first return air by-passing valve 15 is opened, and the second return air by-passing valve 16 is closed；In air-supply passage A
In, outdoor fresh air flows through the dehumidifying that is cooled after the First Heat Exchanger 4 used as evaporator, afterwards with pass through the first return air by-passing valve
15 part return air is mixed, and wind pushing temperature, which increases, is sent into interior；In air exhaust passage B, indoor exhaust wind is flowed through as condensation
It heats up after the second heat exchanger 2 that device uses and interior is discharged；And supplementary heat exchanger 3 carries out auxiliary condensation to the second heat exchanger 2.Its
In, the energy for the Cryogenic air being discharged in high temperature refrigerant absorption chamber is condensed, due to indoor exhaust wind temperature temperature than outdoor
It is low, the condensing pressure of refrigeration system is significantly reduced, to reduce the power consumption of unit.It is utilized simultaneously from air exhaust passage
The bypass return air being discharged in B mixes progress reheating with cold air distribution and avoids cold consumption caused by cold-hot counteraction.
Under heating condition, when indoor environment temperature is relatively low, not up to predetermined temperature value when, unit enters interior cyclic module
Formula：First Heat Exchanger 4 makees condenser use, and supplementary heat exchanger 3 makees evaporator use, when the second heat exchanger 2 is closed, the first return air
By-passing valve 15 is closed, and the second return air by-passing valve 16 is opened, at this point, being arranged in the pass of fresh air air door 18 of the inlet of air-supply passage A
It closes, outdoor fresh air is avoided to enter from air-supply passage A；In air-supply passage A, by the indoor return air being discharged in air exhaust passage B
Enter air-supply passage through the second return air by-passing valve 16, heats up and be admitted to after flowing through the First Heat Exchanger 4 used as condenser
It is indoor.Wherein, the outdoor supplementary heat exchanger inner refrigerant used as evaporator, which absorbs heat, evaporates.
And when indoor temperature reaches predetermined temperature value, unit enters outer circulation pattern：First Heat Exchanger 4 makes as condenser
With the second heat exchanger 2 makees evaporator use, and supplementary heat exchanger 3 is closed, and the first return air by-passing valve 15 and the second return air bypass
Valve 16 is in closed state, at this point, the unlatching of fresh air air door 18 in the inlet of air-supply passage A is arranged；In air-supply passage A
In, outdoor fresh air heats up after flowing through the First Heat Exchanger 4 used as condenser and is admitted to interior；In air exhaust passage B, room
Interior air draft cools down after flowing through the second heat exchanger 2 used as evaporator and interior is discharged；Wherein, low temperature in the second heat exchanger 1
The heat of refrigerant suction indoor exhaust wind air, is evaporated, since temperature is high than outdoor for indoor exhaust wind temperature, to effectively
The evaporating pressure for improving heating system improves the heating capacity of unit, reduces the power consumption of unit and avoids unit
The risk of frosting.
Wherein it should be noted that the refrigerant of low-temp low-pressure inputs compressor 1, after being compressed to it by compressor 1, warp
Four-way reversing valve 14 exports the refrigerant of high temperature and pressure, and power is provided for refrigeration cycle, to realize that compression, condensation (are put
Heat), throttling, evaporation (heat absorption) refrigeration cycle.
In above-described embodiment one, it is preferable that a wet-film humidifying module 17, the wet-film humidifying are set at air-supply passage A
Module 17 is closed under cooling condition, is closed under heating condition, interior circulation pattern, is opened under outer circulation pattern.In heating work
Condition under outer circulation pattern, after outdoor fresh air flows through First Heat Exchanger 4 (making condenser use), passes through wet-film humidifying module 17,
After so that air humidity is promoted, further meets indoor humidity requirement, interior is finally sent by pressure fan 12.
In above-described embodiment one, it is preferable that one first filter screen 10 is set in the inlet of air-supply passage A, makes outdoor
Fresh air enters the indoor return air of air-supply passage A after the first filter screen 10 using the wet place of heat through the second return air by-passing valve 16
Reason is sent into interior, can effectively ensure quality of blowing.
In above-described embodiment one, it is preferable that one second filter screen 11 is set in the inlet of air exhaust passage B so that room
Interior air draft is discharged from air exhaust passage B, or when cycle interior into air-supply passage A progress, first after the second filter screen 11 tentatively filters
It is then exhausted from outdoor or utilizes again, avoid causing secondary pollution.
In above-described embodiment one, it is preferable that in the connection of supplementary heat exchanger 3 one for controlling the opening and closing of its access
First solenoid valve 9.When entering interior circulation pattern under cooling condition and under heating condition, the first solenoid valve 9 is in open state,
The access of supplementary heat exchanger 3 is opened in this way, and supplementary heat exchanger 3 works；And when entering outer circulation pattern under heating condition,
First solenoid valve 9, which is in, closes, by the path blockade of supplementary heat exchanger 3, at this point, supplementary heat exchanger 3 is stopped.
In above-described embodiment one, it is preferable that in the second heat exchanger 2 connection one for controlling the opening and closing of its access
Second solenoid valve 8.When entering outer circulation pattern under cooling condition and under heating condition, second solenoid valve 8 is in open state,
The access of such second heat exchanger 2 is opened, and the second heat exchanger 2 works；And when entering interior circulation pattern under heating condition,
Second solenoid valve 8, which is in, closes, by the path blockade of the second heat exchanger 2, at this point, the second heat exchanger 2 is stopped.
On the basis of the above embodiment 1, it is preferable that be arranged first between First Heat Exchanger 4 and the second heat exchanger 2
Electric expansion valve 5, the second electric expansion valve 6；And auxiliary electron expansion valve is set between First Heat Exchanger 4 and supplementary heat exchanger 3
7, the second electric expansion valve 6.In this way under cooling condition, auxiliary electron expansion valve 7 is opened completely, the first electric expansion valve 5
Open and be used as by the size extent control of its unlatching the suction superheat for the First Heat Exchanger 4 that evaporator uses, the second electricity
Sub- expansion valve 6 is opened and by the degree of supercooling of its second heat exchanger of size extent control 2 opened；Under heating condition, work as room
When interior temperature is not up to predetermined temperature value, into interior circulation pattern：First electric expansion valve 5 fully opens, the second electronic expansion
Valve 6 is closed, and auxiliary electron expansion valve 7 is opened and is used as the auxiliary heat-exchanging that evaporator uses by the size extent control of its unlatching
The suction superheat of device 3；When indoor temperature reaches predetermined temperature value, into outer circulation pattern：First electric expansion valve 5 is completely
It opens, auxiliary electron expansion valve 7 is closed, and the second electric expansion valve 6 is opened and is used as steaming by the size extent control of its unlatching
The suction superheat for the second heat exchanger 2 that hair device uses.
The present invention also provides a kind of air conditioning methods, apply dehumidification fresh air group as the aforementioned.
In the embodiment one of the method for air conditioning of the present invention, method includes：Under cooling condition, outdoor fresh air warp
After the First Heat Exchanger 4 used as evaporator be cooled dehumidifying, afterwards with the part return air by the first return air by-passing valve 15 into
Row mixing, wind pushing temperature, which increases, is sent into interior；And after the heating of the second heat exchanger 2 that indoor exhaust wind is used as condenser and by
Interior is discharged in exhaust blower 14, wherein supplementary heat exchanger 3 carries out auxiliary condensation to the second heat exchanger 2, enhances unit refrigeration energy
Power.
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：Indoor return air passes through
Second return air by-passing valve 16 enters in air-supply passage A, heats up after the First Heat Exchanger 4 through being used as condenser and by pressure fan
12 are sent into interior；It is evaporated at this point, absorbing heat in outdoor 3 inner refrigerant of supplementary heat exchanger used as evaporator；Work as indoor temperature
When reaching predetermined temperature value, into outer circulation pattern：First Heat Exchanger 4 makees condenser use, and outdoor fresh air is flowed through as condensation
It heats up after the First Heat Exchanger 4 that device uses and is admitted to interior；Indoor exhaust wind flows through the second heat exchanger 2 used as evaporator
After cool down and interior be discharged；At this point, the heat absorption evaporation of 2 inner refrigerant of the second heat exchanger.
On the basis of embodiment one of the method for air conditioning, it is preferable that outdoor under heating condition outer circulation pattern
First Heat Exchanger 4 of the fresh air through being used as evaporator heats up, and further carries out humidification process, so that it is met indoor wet
Degree is admitted to interior after requiring.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. the dehumidification fresh air group of a kind of more condensers and double back wind bypass, which is characterized in that including：
The air-supply passage of outdoor fresh air, the air exhaust passage of indoor exhaust wind；
At the air-supply passage, it is equipped with successively along the flow direction of air：Fresh air air door, have both condensation and vaporization function
One heat exchanger, pressure fan；
At the air exhaust passage, it is equipped with successively along the flow direction of air：Have both condensation and vaporization function the second heat exchanger,
Exhaust blower；
Second heat exchanger is further connected in parallel a supplementary heat exchanger for having both condensation and vaporization function, the auxiliary heat-exchanging
Device is set in the outdoor unit of the dehumidification fresh air group；
Between the air-supply passage and the air exhaust passage, it is equipped with successively along the flow direction of indoor exhaust wind：First return air bypasses
Valve and the second return air by-passing valve；
Under cooling condition, the First Heat Exchanger makees evaporator use, and second heat exchanger makees condenser use, described auxiliary
Heat exchanger is helped to make auxiliary condenser use, the first return air by-passing valve is opened, and the second return air by-passing valve is closed；Described
In air-supply passage, outdoor fresh air flows through the dehumidifying that is cooled after the First Heat Exchanger used as evaporator, afterwards with pass through institute
The part return air for stating the first return air by-passing valve is mixed, and wind pushing temperature, which increases, is sent into interior；It is indoor in the air exhaust passage
Air draft heats up after flowing through second heat exchanger used as condenser and interior is discharged；Wherein, the supplementary heat exchanger pair
Second heat exchanger carries out auxiliary condensation；
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：The First Heat Exchanger is made
Condenser uses, and the supplementary heat exchanger makees evaporator use, and second heat exchanger is closed, and the first return air by-passing valve closes
It closes, the second return air by-passing valve is opened, and the fresh air air door is closed, and the exhaust blower is closed；In the air-supply passage, room
Interior return air enters through the second return air by-passing valve in the air-supply passage, flows through first heat exchange used as condenser
It heats up after device and is admitted to interior；Wherein, it absorbs heat and steams in the outdoor supplementary heat exchanger inner refrigerant used as evaporator
Hair；
When indoor temperature reaches predetermined temperature value, into outer circulation pattern：The First Heat Exchanger makees condenser use, described
Second heat exchanger makees evaporator use, and the supplementary heat exchanger is closed, by the first return air by-passing valve and second return air
Port valve is turned off, and the exhaust blower is opened, and the fresh air air door is opened；In the air-supply passage, outdoor fresh air flows through conduct
It heats up after the First Heat Exchanger that condenser uses and is admitted to interior；In the air exhaust passage, indoor exhaust wind flows through work
Cool down after second heat exchanger used for evaporator and interior is discharged；Wherein, the second heat exchanger inner refrigerant heat absorption
Evaporation.
2. the dehumidification fresh air group of more condensers according to claim 1 and double back wind bypass, it is characterised in that：
One wet-film humidifying module is further set at the air-supply passage, is closed under cooling condition；
Under heating condition outer circulation pattern, after outdoor fresh air flows through the First Heat Exchanger, the wet-film humidifying mould is passed through
It is sent into after block is humidified indoor；
In heating condition under circulation pattern, the wet-film humidifying module is closed.
3. the dehumidification fresh air group of more condensers according to claim 1 and double back wind bypass, it is characterised in that：
The inlet of the air-supply passage also sets up one first filter screen, under refrigerating state, outdoor fresh air or in heating condition
Under interior circulation pattern, the indoor return air entered in the air-supply passage through the second return air by-passing valve flows through first filtering
After net, then it is indoor through First Heat Exchanger feeding.
4. the dehumidification fresh air group of more condensers according to claim 1 and double back wind bypass, it is characterised in that：
One second filter screen is arranged in the inlet of the air exhaust passage, and outer circulation is entered under refrigeration situation and under heating situation
When pattern, indoor return air flows through second filter screen, then outdoor is discharged through second heat exchanger.
5. the dehumidification fresh air group of more condensers according to claim 1 and double back wind bypass, it is characterised in that：
First solenoid valve of the supplementary heat exchanger connection one for controlling the opening and closing of its access；
When entering interior circulation pattern under cooling condition and under the heating condition, first solenoid valve is opened, the auxiliary
The access of heat exchanger is opened；
When entering outer circulation pattern under heating condition, first solenoid valve is closed, the path blockade of the supplementary heat exchanger.
6. the dehumidification fresh air group of more condensers according to claim 1 and double back wind bypass, it is characterised in that：
Second solenoid valve of the second heat exchanger connection one for controlling the opening and closing of its access；
When entering outer circulation pattern under cooling condition and under the heating condition, the second solenoid valve is opened, and described second
The access of heat exchanger is opened；
When entering interior circulation pattern under heating condition, the second solenoid valve is closed, the path blockade of second heat exchanger.
7. according to the dehumidification fresh air group that the more condensers of claim 1-6 any one of them and double back wind bypass, feature exists
In：
The first electric expansion valve, the second electric expansion valve are equipped between the First Heat Exchanger and second heat exchanger；
The first electric expansion valve, auxiliary electron expansion valve are equipped between the First Heat Exchanger and the supplementary heat exchanger；
Under cooling condition, the auxiliary electron expansion valve is opened completely, and first electric expansion valve is opened and opened by it
The suction superheat for the First Heat Exchanger that the size extent control opened is used as evaporator, second electric expansion valve
It opens and by the degree of supercooling of the second heat exchanger described in the size extent control of its unlatching；
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：First electronic expansion
Valve fully opens, and second electric expansion valve is closed, and the auxiliary electron expansion valve is opened and by the size journey of its unlatching
The suction superheat for the supplementary heat exchanger that degree control is used as evaporator；
When indoor temperature reaches predetermined temperature value, into outer circulation pattern：First electric expansion valve fully opens, described
Auxiliary electron expansion valve is closed, and second electric expansion valve is opened and is used as evaporator by the size extent control of its unlatching
The suction superheat of second heat exchanger used.
8. a kind of air conditioning method, which is characterized in that bypassed using more condensers as claimed in claim 7 and double back wind
Dehumidification fresh air group, the air conditioning method include：
Under cooling condition, after the First Heat Exchanger of the outdoor fresh air through being used as evaporator be cooled dehumidifying, afterwards with it is logical
The part return air for crossing the first return air by-passing valve is mixed, and wind pushing temperature, which increases, is sent into interior；Indoor exhaust wind is by as cold
It heats up after second heat exchanger that condenser uses and interior is discharged, wherein the supplementary heat exchanger is to second heat exchanger
Carry out auxiliary condensation；
Under heating condition, when indoor temperature is not up to predetermined temperature value, into interior circulation pattern：Indoor return air is through second time
Wind by-passing valve enters in air-supply passage, then heats up after the First Heat Exchanger through being used as condenser and is admitted to room
It is interior；Wherein, it absorbs heat and evaporates in the outdoor supplementary heat exchanger inner refrigerant used as evaporator；
When indoor temperature reaches predetermined temperature value, into outer circulation pattern：The First Heat Exchanger makees condenser use, outdoor
Fresh air heats up after flowing through the First Heat Exchanger used as condenser and is admitted to interior；Indoor return air is flowed through as evaporation
Cool down after second heat exchanger that device uses and interior is discharged；Wherein, the second heat exchanger inner refrigerant heat absorption evaporation.
9. air conditioning method according to claim 8, it is characterised in that：
Under heating condition, outer circulation pattern, outdoor fresh air heats up through the First Heat Exchanger, is further carried out humidification process
After be admitted to interior.
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| CN201610383924.3A CN105890070B (en) | 2016-06-01 | 2016-06-01 | The dehumidification fresh air group and air conditioning method of more condensers and double back wind bypass |
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| CN201610383924.3A CN105890070B (en) | 2016-06-01 | 2016-06-01 | The dehumidification fresh air group and air conditioning method of more condensers and double back wind bypass |
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| CN105890070B true CN105890070B (en) | 2018-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111043793A (en) * | 2019-12-17 | 2020-04-21 | 上海理工大学 | Double fresh air and double exhaust multifunctional swimming pool heat pump air conditioning unit |
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| CN108317632B (en) * | 2017-01-17 | 2020-08-28 | 河南中烟工业有限责任公司 | Air conditioning system |
| CA2995017C (en) * | 2017-03-01 | 2019-12-24 | Kimura Kohki Co., Ltd. | Air conditioner and air conditioning system including the same |
| CN107560012B (en) * | 2017-08-18 | 2020-03-03 | 广东美的暖通设备有限公司 | Multi-connected fresh air fan system suitable for high-temperature climate and control method thereof |
| CN107631429B (en) * | 2017-09-15 | 2020-06-30 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner outdoor unit |
| US10378786B2 (en) | 2017-12-07 | 2019-08-13 | Waleed KH. A. KH. Al-Deraiei | Energy efficient air conditioner |
| CN110296507A (en) * | 2019-04-26 | 2019-10-01 | 珠海格力电器股份有限公司 | A kind of heat exchange control of air-conditioner outdoor unit |
| CN110345612B (en) * | 2019-06-18 | 2020-11-13 | 兰舍通风系统有限公司 | Frost-prevention air-mixing energy-saving method for fresh air main unit |
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