CN107246672A - A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district - Google Patents
A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district Download PDFInfo
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- CN107246672A CN107246672A CN201710583092.4A CN201710583092A CN107246672A CN 107246672 A CN107246672 A CN 107246672A CN 201710583092 A CN201710583092 A CN 201710583092A CN 107246672 A CN107246672 A CN 107246672A
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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
- 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
- F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
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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
-
- 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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- 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
- 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
- F24F8/108—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 using dry filter elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district, mainly it is made up of fresh air purifying processor and air-cooled cold/hot water machine, in fresh air purifying processor, fresh air is mixed with return air and filtered through low efficient filter, in surface-type heat exchanger with freezing/but water exchanged heat, the air treated under pressure fan driving flows through indoor by air outlet feeding after high efficiency particulate air filter, in air-cooled cold heat water dispenser, using air cooling heat exchanger and water cooling heat exchanger to refrigerant heat exchanger, the cooling water loop of water cooling heat exchanger is connected with surface-type heat exchanger, the start and stop of air injection enthalpy-increasing compressor are according to outdoor temperature and freezing/but water confession, backwater temperature difference is controlled.The present invention realizes the miniaturized application of central air-conditioning, enhances the heating capacity of source pump at low ambient temperatures, can meet the winter heating demand of cold district, it is also ensured that the requirement of summer and conditioning in Transition Season indoor air quality and thermal comfort.
Description
Technical field
The invention belongs to HVAC technical field, more particularly to a kind of family formula fresh air purifying suitable for cold district is complete
Air-conditioning system.
Background technology
With the improvement of living standards, people improve therewith for the comfortableness of human settlement and the requirement of health.
In the indoor environmental condition control of house, villa, independent office etc., the application of split-type air conditioner and multi-gang air-conditioner still accounts for larger
Share.It occurs in that many problems in application process, it is impossible to fully meet user to indoor air quality and environmental degree of comfort
Requirement, the Central Regulation of indoor environment arises at the historic moment.
Firstly, since the deterioration of Outdoor Air Quality in recent years, people thirst for creating health, clean indoor environment.But
It is that conventional at present split-type air conditioner and multi-gang air-conditioner are only capable for the treatment of temperature and humidity, for PM2.5 concentration, CO2Concentration,
The monitoring and control of the parameters such as TVOC concentration is helpless.So user can only place hope on additional equipment or windowing ventilation is solved
So the problem of.But additional equipment and it is passed through untreated fresh air and generally can not solves these problems well.Moreover, indoor
The control of environment is carried out often the most easily using a set of equipment.It is desirable to by a set of equipment reach temperature, humidity,
Air freshness and the multi-parameter of cleanliness factor are precisely adjusted.
Secondly, according to meteorological data, air source heat pump efficiently and reliably long-term in -15 DEG C of atmospheric environment must be transported
Turn, can just meet the winter heating demand of China's cold district.The normal air source heat pump hot water of current south in the market
Group can not having its source in China's cold district application：(1) reduction of environment temperature, the increase of refrigerant suction specific volume, refrigeration
Agent mass flow declines, and heating capacity also just declines in proportion accordingly.The system of phase same horsepower, works at low ambient temperatures, table
Reveal smaller heating capacity；(2) raising of the final heating-up temperature of water, GB/T21362-2008《Business or industry and similar applications
Heat pump water-heating machine》It is 55 DEG C that the final heating-up temperature of hot water is provided in national standard.But in areas such as Europe, it is contemplated that legion
The influence of germ, it is desirable to which leaving water temperature is 65 DEG C.Therefore, the continuous lifting with people to health perception, hot water is finally heated
Temperature may also be improved further.
Again, the split-type air conditioner and multi-gang air-conditioner of current family expenses are not run often in conditioning in Transition Season, but indoor ring
The increase of PM2.5 concentration and CO in border2The problem of concentration increase, is still present, this health to indoor occupant with it is comfortable very not
Profit.The problem can preferably be solved using the central air-conditioning that can introduce fresh air and circulated air progress purified treatment.Central hollow
Adjust the application advantage in small indoor environment obvious.Therefore a kind of new house, light business's air-conditioning system --- suitable for cold
The full air-conditioning system of family formula fresh air purifying in area can be while healthy, comfortable, attractive in appearance and technical property requirements be met, well
Solve this problem.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of family suitable for cold district
The full air-conditioning system of formula fresh air purifying, by by return air CO2Concentration is compared with its setting value, control resh air requirement and return air amount it is big
Small and pressure fan rotating speed；By the comparison to return air temperature and its setting value, water valve aperture is controlled.This system by using
Air injection enthalpy-increasing compressor can be in the case of evaporator cycle fluid identical, compared with ordinary single-stage compressor, and evaporator is inhaled
Heat increase, the increase of condenser heat rejection amount, heating capacity are stronger, are more suitable for cold district；Secondly, this system can be to air-conditioning
System items technical parameter (indoor temperature and humidity change, PM2.5, CO2Concentration) it is controlled, while area can be carried out to parameters
Domainization is set with changing, and realizes miniaturization, the sophistication application of large-scale high-end central air conditioner system.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district, mainly includes the He of fresh air purifying processor 1
Air-cooled cold heat water dispenser, the fresh air purifying processor 1 includes the pipeline with fresh wind port 2 and return air inlet 3, what fresh wind port 2 was sent into
The return air that fresh air and return air inlet 3 are sent into is mixed in the mixing section of pipeline, is filtered by low efficient filter 4, into surface-type heat exchange
Device 5 carries out air heat humidity with chilled water or cooling water, and the air treated through surface-type heat exchanger 5 enters under the driving of pressure fan 6
Enter high efficiency particulate air filter 7 to filter again, interior sent into by air outlet 8 afterwards, it is characterised in that：
The air-cooled cold heat water dispenser includes air injection enthalpy-increasing compressor 9, and air injection enthalpy-increasing compressor 9 connects four-way reversing valve 10
Mouth of pipe a and stop valve 2 18 is provided with connecting line, the mouth of pipe b water receivings cold heat exchanger 11 of four-way reversing valve 10, water cooling is changed
Hot device 11 connects the entrance of shwoot gas-liquid separator 13 and electric expansion valve 1 and valve 1 is disposed with connecting line,
The mouth of pipe c of four-way reversing valve 10 connects gas-liquid separator 17, the gas vent tieback air injection enthalpy-increasing compressor 9 of gas-liquid separator 17,
The mouth of pipe d of four-way reversing valve 10 gives a dinner for a visitor from afar cold heat exchanger 16, and air cooling heat exchanger 16 connects electric expansion valve 1 and on connecting line
Electric expansion valve 2 15 and valve 2 33 are disposed with, shwoot gas-liquid separator 13 is also connected on electric expansion valve 2 15 and valve
On pipeline between 2 33, gas vent tieback air injection enthalpy-increasing compressor 9 and stop valve 1 is provided with connecting line, institute
Surface-type heat exchanger 5 is stated to connect with the cooling water loop of water cooling heat exchanger 11.
The surface-type heat exchanger 5 on the connecting line of the cooling water loop head of water cooling heat exchanger 11 with being provided with accumulation of energy water
Set between case 29, and connecting line of the connecting line with surface-type heat exchanger 5 and the cooling water ring way outlet of water cooling heat exchanger 11
Bypass line is equipped with, bypass line is by triple valve 19 with surface-type heat exchanger 5 and the cooling water ring way outlet of water cooling heat exchanger 11
Connecting line connection.
The aperture of the triple valve 19 is compared control by return air temperature and design temperature, when return air temperature is close to design temperature
When, water adjusting valve main line aperture reduces, the increase of bypass branch aperture；If conversely, return air temperature deviates design temperature, triple valve
Main line aperture increase, bypass valve opening also reduces therewith so that the water quantity holding by water cooling heat exchanger 11 is constant.
During winter heating's operating mode, the mouth of pipe a of four-way reversing valve 10 is connected with mouth of pipe b inside valve, and mouth of pipe c and mouth of pipe d exist
Connected inside valve, the water cooled heat exchanger 11 of refrigerant of air injection enthalpy-increasing compressor 9 is exchanged heat, and valve 32 is opened, and valve 33 is closed, and is changed
Loopback air injection enthalpy-increasing compressor 9 after refrigerant is separated through shwoot gas-liquid separator 13 after heat；After being exchanged heat in water cooling heat exchanger 11
Cooling water flows through and surface-type heat exchanger 5 and air heat-exchange is delivered to after triple valve 19, and the cooling water after the heat exchange of surface-type heat exchanger 5 is again
Return to the circulation heat absorption of water cooling heat exchanger 11；
When cooling in summer operating mode or winter frost removing, the mouth of pipe a of four-way reversing valve 10 is connected with mouth of pipe d inside valve, pipe
Mouth b is connected with mouth of pipe c inside valve, and the refrigerant of air injection enthalpy-increasing compressor 9 is exchanged heat through air cooling heat exchanger 16, and valve 32 is closed,
Valve 33 is opened, and refrigerant is not passed through shwoot gas-liquid separator 13, but enters gas-liquid separator 17 via water cooling heat exchanger 11
Loopback air injection enthalpy-increasing compressor 9 after separation；2 15 pairs of refrigerant depth throttlings of electric expansion valve, refrigerant is in air cooling heat exchanger 16
Air injection enthalpy-increasing compressor 9 is flowed back to through gas-liquid separator 17, electric expansion valve 1 and electric expansion valve 2 15 are opened after middle heat exchange
Degree jointly controls according to outside air temperature and confession, backwater temperature difference, realizes the regulation of source pump cold/heat supply ability；
During defrosting operating condition, a certain amount of hot water heated is stored in energy storage water tank 29, on the one hand ensures normally entering for circulation
OK, the quickly defrosting to air cooling heat exchanger 16 is realized, on the other hand continues to ensure to provide hot water to Fresh air handing device 1, it is to avoid right
Indoor feeding cold wind.
Transition season, air-to-water heat pump is not run, and outdoor fresh air is sent into after Fresh air handing unit filtration, purification
Interior, ventilation eliminates waste heat.
Return air temperature sensor 20, CO are provided with the return air inlet 32Concentration sensor 21 and PM2.5 concentration sensing
Device 22；New air-valve 23 and the aperture of air returning valve 24 are by CO2Concentration set point and return air CO2The comparison of concentration is controlled and adjusted, if
Return air CO2When concentration exceedes setting value, the aperture of new air-valve 23 increase, while the aperture of air returning valve 24 reduces；If CO2Concentration is less than
During setting value, the aperture of new air-valve 23 reduces, while the aperture of air returning valve 24 increases；New air-valve 23 links with air returning valve 24 and adjusted, i.e.,
When the aperture of new air-valve 23 increases, the aperture of air returning valve 24 reduces, when the aperture of new air-valve 23 reduces, the increase of the aperture of air returning valve 24, described
The rotating speed of pressure fan 6 is by PM2.5 concentration and CO2Concentration is controlled, as PM2.5 concentration and CO2During both coincidences of concentration control,
CO2Concentration only controls whether new air-valve 23 opens, and PM2.5 concentration controls the rotating speed of pressure fan 6, is kept out the wind speed high, medium and low three
Between change；The aperture in triple valve 19 on air-cooled cold heat water dispenser and the connecting line of surface-type heat exchanger 5 according to return air temperature and
The comparison of its setting value is adjusted, when return air temperature is close to its setting value, and proportion adjustment aperture reduces, fully closed in triple valve 19
When closing, still there is bare flow, antifreeze effect is played in the winter time.
The confession of the surface-type heat exchanger 1, return water temperature are surveyed by supply water temperature sensor 25 and return water temperature sensor 26
Amount, when proportion adjustment water valve aperture changes in triple valve 19, the confession of surface-type heat exchanger 5, backwater temperature difference change therewith,
Air injection enthalpy-increasing compressor 9 controls it according to the contrast of outside air temperature and surface-type heat exchanger confession, backwater temperature difference and setting value
Open or stop.
The aperture of the fresh wind port 2 and return air inlet 3 is adjusted by the new air-valve 23 and air returning valve 24 that are placed in inside respectively,
Minimum air quantity air inlet is designed with new air-valve 23 and air returning valve 24, it is full to ensure still there is resh air requirement under circulated air pattern
The demand of foot interior minimum fresh air requirmente, while ensureing still there is return air amount in all-fresh air pattern, obtains certain energy-saving effect.
Two kinds of control models can be set in the system, and one kind is indoor control, another for mobile phone remote control, indoor control
It is divided into manual mode and automatic mode again；
During using manual mode, the rotating speed of pressure fan 6 is manually set, now the invariablenes turning speed of pressure fan 6, no longer passes through return air
The comparison of temperature and its setting value and change, according only to supplying, the comparison of backwater temperature difference and its setting value determine air injection enthalpy-increasing pressure
The start and stop of contracting machine 9, so as to keep constant indoor temperature constant pressure；
During using automatic mode, it is mainly used in transition season, by CO2Whether concentration control fresh air air-valve 23 is opened and is changed
Become the rotating speed of pressure fan 6, as PM2.5 concentration and CO2When concentration is overlapped to the control instruction of pressure fan 6, CO2Concentration is only controlled newly
Whether wind air-valve 23 is opened, and the PM2.5 concentration of return air controls the rotating speed of pressure fan 6；
When being controlled using mobile phone remote, operational mode, wind speed regulation and indoor temperature and humidity, CO can be selected2Concentration,
The inquiry of the historical record of PM2.5 concentration and instant situation.
The surface-type heat exchanger 5 is using the 8 combs design of full adverse current；The lower section of surface-type heat exchanger 5 sets solidifying water pond 30, coagulates
Condensate is drained into outdoor by water pond 30 by solidifying water comb 31, and pressure fan 6 uses efficient centrifugal blower fan, configuring direct current is brushless electricity
Machine, the air outlet 8 is disposed in the interior eminence, from ABS or wooden air outlets, it is to avoid air port condenses, and air supply direction can be adjusted
Section, so that hot blast can more effectively send into workspace；Return air inlet 3 is arranged on the side wall away from ground 50cm-70cm height, it is ensured that people
Member is in recirculating zone.
The system and the system combined work of indoor ground-heating, ground heating system undertake thermic load, and fresh air purifying processing equipment 1 is only held
Carry on a shoulder pole new wind load, manually or automatically pattern come be adjusted to ensure that processing after new air temperature it is only high.
Compared with prior art, the beneficial effects of the invention are as follows：
1) use of the present invention can automatically control newly, the fresh air purifying processor of return air when breeze fan, relative to tradition
Air-conditioning has more preferable comfortableness and indoor air quality.
2) minimum air quantity air inlet is equipped with the fresh wind port of fresh air purifying processor and the air-valve of return air inlet, to ensure
All-fresh air pattern still has return air amount, reaches energy-saving effect, still there is fresh air under circulated air pattern, meets indoor minimum fresh air requirmente
100m3/ h demand.
3) pressure fan uses efficient centrifugal blower fan, configuring direct current brushless electric machine, relative to traditional air conditioner efficiency high, noise
It is small.Fresh air purifying crew qiting double-filtration (G4+H12), effectively filtering PM2.5 and most of bacterium mould, filter efficiency can
Up to 95%.
4) air injection enthalpy-increasing compressor and shwoot gas-liquid separator are used, Ke Yiman strong relative to traditional air conditioner heating capacity
The winter heating demand of sufficient China's cold district.
5) fresh air purifying air-conditioner set can be installed in kitchen or toilet furred ceiling, and the design of unit integration can save sky
Between.Unit double air outlet, double back air port designs, can avoid pipeline monitor, reduce thickness of interlayer, effective utilization space.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the schematic diagram of fresh air purifying processor of the present invention.
Fig. 3 is surface-type heat exchanger bottom discharge structure schematic diagram of the present invention.
Embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the full air-conditioning system of frequency conversion family formula fresh air purifying of the present invention, the system is by fresh air purifying processor 1
With air-cooled cold/hot water mechanism into.
Reference picture 2, fresh air purifying processor 1 includes a fresh wind port 2 and two return air inlets 3, the fresh air that fresh wind port 2 is sent into
The return air sent into return air inlet 3 is mixed in the mixing section of pipeline, is filtered by low efficient filter 4, into surface-type heat exchanger 5
Air heat humidity is carried out with chilled water or cooling water, the air treated through surface-type heat exchanger 5 enters height under the driving of pressure fan 6
Effect filter 7 is filtered again, sends into interior by air outlet 8 afterwards.Air outlet 8 is disposed in the interior eminence, and selects ABS or wood
Matter air outlet, it is to avoid air port is condensed, and air supply direction can be adjusted, so that hot blast can more effectively send into workspace, it is to avoid in appearance
Cold phenomenon under heat；Return air inlet 3 is arranged on the side wall away from ground 50cm-70cm height, it is ensured that personnel are in recirculating zone.Surface-type
Heat exchanger 5 is using the 8 combs design of full adverse current；Reference picture 3, the lower section of surface-type heat exchanger 5 sets solidifying water pond 30, and solidifying water pond 30 passes through
Condensate is drained into outdoor by solidifying water comb 31, and pressure fan 6 uses efficient centrifugal blower fan, configuring direct current brushless electric machine.
Reference picture 1, air-cooled cold heat water dispenser includes air injection enthalpy-increasing compressor 9, four-way reversing valve 10, water cooling heat exchanger 11, electricity
Sub- expansion valve 1, shwoot gas-liquid separator 13, stop valve 1, electric expansion valve 2 15, air cooling heat exchanger 16, gas-liquid separation
Device 17, stop valve 2 18, triple valve 19, bypass line and energy storage water tank 29 etc..
Air injection enthalpy-increasing compressor 9 meets the mouth of pipe a of four-way reversing valve 10 and stop valve 2 18, four is provided with connecting line
The mouth of pipe b water receivings cold heat exchanger 11 of logical reversal valve 10, water cooling heat exchanger 11 connects the entrance of shwoot gas-liquid separator 13 and in connecting tube
Electric expansion valve 1 and valve 1 are disposed with road, the mouth of pipe c of four-way reversing valve 10 connects gas-liquid separator 17, gas-liquid
The gas vent tieback air injection enthalpy-increasing compressor 9 of separator 17, the mouth of pipe d of four-way reversing valve 10 gives a dinner for a visitor from afar cold heat exchanger 16, air-cooled
Heat exchanger 16 connects electric expansion valve 1 and electric expansion valve 2 15 and valve 2 33, shwoot is disposed with connecting line
Gas-liquid separator 13 is also connected on the pipeline between electric expansion valve 2 15 and valve 2 33, gas vent tieback air injection enthalpy-increasing pressure
The middle air entry of contracting machine 9 and stop valve 1 is provided with connecting line, prevents the refrigerant at puff prot from can produce back
Flow phenomenon.
Surface-type heat exchanger 5 on the connecting line of the cooling water loop head of water cooling heat exchanger 11 with being provided with energy storage water tank
29, and the connecting line is with setting between the connecting line of surface-type heat exchanger 5 and the cooling water ring way outlet of water cooling heat exchanger 11
There is bypass line, bypass line is by triple valve 19 with surface-type heat exchanger 5 and the cooling water ring way outlet of water cooling heat exchanger 11
Connecting line is connected.
During winter heating's operating mode, the mouth of pipe a of four-way reversing valve 10 is connected with mouth of pipe b inside valve, and mouth of pipe c and mouth of pipe d exist
Connected inside valve, so that the outlet of air injection enthalpy-increasing compressor 9 is connected with the material inlet of water cooling heat exchanger 11, valve 32 is opened,
Valve 33 is closed；The refrigerant for going out air injection enthalpy-increasing compressor 9 exchanges heat in water cooling heat exchanger 11 with cooling water, the cooling after heat exchange
Water flow through triple valve 19 deliver in surface-type heat exchanger 5 and air heat-exchange, surface-type heat exchanger 5 exchange heat after cooling water return again to
The circulation heat absorption of water cooling heat exchanger 11.Refrigerant after being exchanged heat in water cooling heat exchanger 11 enters by electric expansion valve 1 and valve 32
Enter shwoot gas-liquid separator 13, after separation, refrigerant is recycled to the middle air entry of air injection enthalpy-increasing compressor 9, increases air injection enthalpy-increasing
The capacity of compressor 9, so as to increase the inner refrigerant flow of water cooling heat exchanger 11, improves heating capacity；On the other hand, electric expansion valve
2 15 pairs of liquid refrigerant depth for going out shwoot gas-liquid separator 13 throttle, and realize that low temperature takes heat, some refrigerant is air-cooled
After being exchanged heat in heat exchanger 16 air injection enthalpy-increasing compressor 9 is flowed back to through gas-liquid separator 17；Electric expansion valve 1 and electric expansion valve
2 15 aperture jointly controls according to outside air temperature and confession, backwater temperature difference, realizes the regulation of source pump cold/heat supply ability.
When cooling in summer operating mode or winter frost removing, the mouth of pipe a of four-way reversing valve 10 is connected with mouth of pipe d inside valve, pipe
Mouth b is connected with mouth of pipe c inside valve, so that the outlet of air injection enthalpy-increasing compressor 9 is connected with the entrance of air cooling heat exchanger 16.Valve
32 are closed, and valve 33 is opened, and refrigerant is not passed through flash evaporation 13.
During defrosting operating condition, a certain amount of hot water heated is stored in energy storage water tank 29, on the one hand can ensure circulation just
Often carry out, realize the quickly defrosting to air cooling heat exchanger, on the other hand can also continue to ensure to provide hot water to Fresh air handing device, keep away
Exempt to indoor feeding cold wind.
Transition season, air-to-water heat pump is not run, and outdoor fresh air is sent into after Fresh air handing unit filtration, purification
Interior, ventilation eliminates waste heat.
During the full air-conditioning system specific works of frequency conversion family formula fresh air purifying of the present invention, return air temperature biography is provided with return air inlet 3
Sensor 20, CO2Concentration sensor 21 and PM2.5 concentration sensors 22；New air-valve 23 and the aperture of air returning valve 24 are by CO2Concentration
Setting value and return air CO2The comparison of concentration is controlled and adjusted, such as, CO2Concentration set point is 500PPM, if the CO of return air2It is dense
When degree exceedes setting value, the aperture of new air-valve 23 increase, while the aperture of air returning valve 24 reduces；If CO2When concentration is less than setting value,
The aperture of new air-valve 23 reduces, while the aperture of air returning valve 24 increases；New air-valve 23 is linked with air returning valve 24 and adjusted, i.e., new air-valve 23 is opened
During degree increase, the aperture of air returning valve 24 reduces.The rotating speed of blower fan 6 equipped with DC brushless motor is by PM2.5 concentration and CO2Concentration
Control, as PM2.5 concentration and CO2During both coincidences of concentration control, CO2Concentration only controls whether fresh air air-valve 23 is opened,
PM2.5 concentration controls the rotating speed of pressure fan 6.
The aperture of triple valve 19 is compared control by return air temperature and design temperature, when return air temperature is close to design temperature,
Water adjusting valve main line aperture reduces, the increase of bypass branch aperture；If conversely, return air temperature deviates design temperature, triple valve master
Pipeline aperture increase, bypass valve opening also reduces therewith so that the water quantity holding by water cooling heat exchanger 11 is constant.In triple valve
During 19 contract fully, still there is bare flow, winter can play antifreeze effect.
The confession of surface-type heat exchanger, return water temperature are measured by supply water temperature sensor 25 and return water temperature sensor 26, when
When proportion adjustment water valve aperture changes in triple valve 19 in air-cooled cold heat water dispenser and the connecting line of surface-type heat exchanger 5,
The confession of surface-type heat exchanger 5, backwater temperature difference change therewith, and air injection enthalpy-increasing compressor 9 is supplied according to surface-type heat exchanger, backwater temperature difference
Contrast with setting value controls it to open or stop.
The aperture of fresh wind port 2 and return air inlet 3 is adjusted by the new air-valve 23 and air returning valve 24 that are placed in inside respectively, fresh air
Minimum air quantity air inlet is designed with valve 23 and air returning valve 24, to ensure still there is resh air requirement under circulated air pattern, room is met
Demand (the about 100m of interior minimum fresh air requirmente3/ h), it can also ensure still there is return air amount in all-fresh air pattern, obtain certain energy-conservation effect
Really.
Present system has two kinds of control models, and one kind is indoor control, another for mobile phone remote control.Indoor control
It is divided into manual mode (air conditioning mode) and automatic mode again.During using manual mode, the rotating speed of pressure fan 6 is manually set, now
The rotating speed of pressure fan 6 will no longer change, and no longer be changed by the comparison of return air temperature and its setting value, according only to supplying, backwater temperature
Difference determines the start and stop of air injection enthalpy-increasing compressor 9 with the comparison of its setting value, so as to keep constant indoor temperature constant pressure；Using automatic mold
During formula, it is not recommended that open air-cooled cold heat water dispenser, be mainly used in transition season, by CO2Whether concentration control fresh air air-valve 23 is opened
And change the rotating speed of pressure fan 6, as PM2.5 concentration and CO2When concentration is overlapped to the control instruction of pressure fan 6, CO2Concentration is only
Whether control fresh air air-valve 23 is opened, and the PM2.5 concentration of return air controls the rotating speed of pressure fan 6.
When being controlled using mobile phone remote, operational mode, wind speed regulation and indoor temperature and humidity, CO can be selected2Concentration,
The inquiry of the historical record of PM2.5 concentration and instant situation.
Present system can also be with indoor use ground heating system associated working, ground heating system undertakes thermic load (floor heating
Supply water temperature is maintained at 35~40 DEG C), then fresh air purifying processing equipment 1 only undertakes new wind load, can be by manually or certainly
Dynamic model formula causes hot discomfort being adjusted to ensure that the new air temperature after processing only high.
To sum up, a kind of full air-conditioning system of family formula fresh air purifying suitable for cold district of the invention, mainly by fresh air purifying
In processor and air-cooled cold/hot water machine composition, fresh air purifying processor, fresh air is mixed with return air in mixing section, by slightly imitating
Filter is filtered, and is exchanged heat in surface-type heat exchanger with the water of freezing/but, the treated air stream under the driving of frequency conversion pressure fan
Sent into after high efficiency particulate air filter by two air outlets indoor, the aperture of new air-valve and air returning valve is according to the CO of return air2Concentration is adjusted
Section, breeze fan rotating speed is according to CO2With the regulation of PM2.5 concentration, air-cooled cold heat water dispenser and surface cooler in Fresh air handing device are connected
The aperture of ratio triple valve in water route adjusted according to return air temperature with the difference of its setting value, and air injection enthalpy-increasing compressor is opened
Stop according to outdoor temperature and freezing/but water confession, backwater temperature difference control.The present invention realizes the miniaturized application of central air-conditioning, leads to
Cross to temperature, humidity, CO2Concentration, the regulation of PM2.5 concentration, provide annual healthy, comfortable indoor environment, change to greatest extent
Kind comfort level, further, since using air injection enthalpy-increasing technology, the heating capacity of source pump at low ambient temperatures is greatly strengthen,
Air-conditioning system efficiently and reliably long-term operating in -15 DEG C of low temperature environments can be made, the winter heating of China's cold district is met
Demand, can also ensure annual air conditioning requirements.
Claims (11)
1. a kind of full air-conditioning system of family formula fresh air purifying suitable for cold district, mainly include fresh air purifying processor (1) and
Air-cooled cold heat water dispenser, the fresh air purifying processor (1) includes the pipeline with fresh wind port (2) and return air inlet (3), fresh wind port
(2) return air of the fresh air of feeding and return air inlet (3) feeding is mixed in the mixing section of pipeline, is filtered, is entered by low efficient filter (4)
Enter surface-type heat exchanger (5) and carry out air heat humidity with chilled water or cooling water, the air treated through surface-type heat exchanger (5) exists
Pressure fan (6) driving is lower to filter again into high efficiency particulate air filter (7), is sent into afterwards by air outlet (8) indoor, it is characterised in that：
The air-cooled cold heat water dispenser includes air injection enthalpy-increasing compressor (9), and air injection enthalpy-increasing compressor (9) connects four-way reversing valve (10)
Mouth of pipe a and stop valve two (18) is provided with connecting line, the mouth of pipe b water receiving cold heat exchangers of four-way reversing valve (10)
(11), water cooling heat exchanger (11) connects shwoot gas-liquid separator (13) entrance and electric expansion valve is disposed with connecting line
One (12) and valve one (32), the mouth of pipe c of four-way reversing valve (10) connect gas-liquid separator (17), the gas of gas-liquid separator (17)
Export tieback air injection enthalpy-increasing compressor (9), the mouth of pipe d of four-way reversing valve (10) gives a dinner for a visitor from afar cold heat exchanger (16), air cooling heat exchanger
(16) connect electric expansion valve one (12) and electric expansion valve two (15) and valve two (33) are disposed with connecting line, dodge
Liquid/gas separator (13) of getting angry also is connected on the pipeline between electric expansion valve two (15) and valve two (33), the spray of gas vent tieback
Gas enthalpy-increasing compressor (9) and stop valve one (14) is provided with connecting line, the surface-type heat exchanger (5) exchanges heat with water cooling
The cooling water loop connection of device (11).
2. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that described
Energy storage water tank (29) is provided with the connecting line of surface-type heat exchanger (5) and water cooling heat exchanger (11) cooling water loop head,
And set between the connecting line of the same surface-type heat exchanger of the connecting line (5) and water cooling heat exchanger (11) cooling water ring way outlet
There is bypass line, bypass line passes through triple valve (19) same to surface-type heat exchanger (5) and water cooling heat exchanger (11) cooling water loop
The connecting line connection of outlet.
3. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 2, it is characterised in that described
The aperture of triple valve (19) is compared control by return air temperature and design temperature, when return air temperature is close to design temperature, water valve master
Pipeline aperture reduces, the increase of bypass branch aperture；Conversely, if return air temperature deviates design temperature, triple valve main line aperture increases
Plus, bypass valve opening also reduces therewith so that the water quantity holding by water cooling heat exchanger (11) is constant.
4. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that
During winter heating's operating mode, the mouth of pipe a of four-way reversing valve (10) is connected with mouth of pipe b inside valve, and mouth of pipe c and mouth of pipe d are in valve
Inside connection, the water cooled heat exchanger of refrigerant (11) heat exchange of air injection enthalpy-increasing compressor (9), valve (32) is opened, valve (33)
Close, loopback air injection enthalpy-increasing compressor (9) after refrigerant is separated through shwoot gas-liquid separator (13) after heat exchange；Water cooling heat exchanger
(11) cooling water after being exchanged heat in, which is flowed through, delivers to surface-type heat exchanger (5) and air heat-exchange after triple valve (19), surface-type heat exchange
Cooling water after device (5) heat exchange returns again to water cooling heat exchanger (11) circulation heat absorption；
When cooling in summer operating mode or winter frost removing, the mouth of pipe a of four-way reversing valve (10) is connected with mouth of pipe d inside valve, mouth of pipe b
Connected with mouth of pipe c inside valve, the refrigerant of air injection enthalpy-increasing compressor (9) is exchanged heat through air cooling heat exchanger (16), and valve (32) is closed
Close, valve (33) is opened, and refrigerant is not passed through shwoot gas-liquid separator (13), but enters gas-liquid via water cooling heat exchanger (11)
Loopback air injection enthalpy-increasing compressor (9) after separator (17) separation；Electric expansion valve two (15) throttles to refrigerant depth, refrigerant
After being exchanged heat in air cooling heat exchanger (16) air injection enthalpy-increasing compressor (9), electric expansion valve one are flowed back to through gas-liquid separator (17)
(12) jointly controlled with the aperture of electric expansion valve two (15) according to outside air temperature and confession, backwater temperature difference, realize that source pump is supplied
The regulation of cold/heat capacity；
During defrosting operating condition, a certain amount of hot water of storage in energy storage water tank (29) on the one hand can ensure being normally carried out for circulation, realize
To the quickly defrosting of air cooling heat exchanger (16), it on the other hand can continue to ensure to provide hot water to Fresh air handing device (1), it is to avoid to room
Interior feeding cold wind.
Transition season, air-to-water heat pump is not run, and outdoor fresh air sends into interior after Fresh air handing unit filtration, purification,
Ventilation, eliminates waste heat.
5. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that described
Return air inlet (3) place is provided with return air temperature sensor (20), CO2Concentration sensor (21) and PM2.5 concentration sensors (22)；
New air-valve (23) and the aperture of air returning valve (24) are by CO2Concentration set point and return air CO2The comparison of concentration is controlled and adjusted, if
Return air CO2When concentration exceedes setting value, new air-valve (23) aperture increase, while the aperture of air returning valve (24) reduces；If CO2Concentration
During less than setting value, new air-valve (23) aperture reduces, while air returning valve (24) aperture increases；New air-valve (23) and air returning valve (24)
Linkage regulation, i.e., when new air-valve (23) aperture increases, air returning valve (24) aperture reduces, when new air-valve (23) aperture reduces, return air
Valve (24) aperture increases, and the rotating speed of the pressure fan (6) is by PM2.5 concentration and CO2Concentration is controlled, when PM2.5 concentration and
CO2During both coincidences of concentration control, CO2Concentration only controls whether new air-valve (23) opens, PM2.5 concentration control pressure fan (6)
Rotating speed, keeps out the wind conversion between speed high, medium and low three；Air-cooled cold heat water dispenser and three on surface-type heat exchanger (5) connecting line
Aperture in port valve (19) is adjusted according to the comparison of return air temperature and its setting value, when return air temperature is close to its setting value,
Proportion adjustment aperture reduces, and in triple valve (19) contract fully, still has bare flow, antifreeze effect is played in the winter time.
6. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that described
The confession of surface-type heat exchanger (1), return water temperature are measured by supply water temperature sensor (25) and return water temperature sensor (26), when three
When proportion adjustment water valve aperture changes in port valve (19), the confession of surface-type heat exchanger (5), backwater temperature difference change therewith, spray
Gas enthalpy-increasing compressor (9) controls it according to the contrast of outside air temperature and surface-type heat exchanger confession, backwater temperature difference and setting value
Open or stop.
7. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that described
The aperture of fresh wind port (2) and return air inlet (3) is adjusted by the new air-valve (23) and air returning valve (24) that are placed in inside respectively, fresh air
Minimum air quantity air inlet is designed with valve (23) and air returning valve (24), it is full to ensure still there is resh air requirement under circulated air pattern
The demand of foot interior minimum fresh air requirmente, while ensureing still there is return air amount in all-fresh air pattern, obtains certain energy-saving effect.
8. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that system
Two kinds of control models are set, and one kind is indoor control, it is another for mobile phone remote control, indoor control be divided into again manual mode with
Automatic mode；
During using manual mode, the rotating speed of pressure fan (6) is manually set, now pressure fan (6) invariablenes turning speed, no longer passes through return air
The comparison of temperature and its setting value and change, according only to supplying, the comparison of backwater temperature difference and its setting value determine air injection enthalpy-increasing pressure
The start and stop of contracting machine (9), so as to keep constant indoor temperature constant pressure；
During using automatic mode, it is mainly used in transition season, by CO2Whether concentration control fresh air air-valve (23) is opened and is changed
The rotating speed of pressure fan (6), as PM2.5 concentration and CO2When concentration is overlapped to the control instruction of pressure fan (6), CO2Concentration is only controlled
Whether fresh air air-valve (23) is opened, the rotating speed of the PM2.5 concentration control pressure fan (6) of return air；
When being controlled using mobile phone remote, operational mode, wind speed regulation and indoor temperature and humidity, CO can be selected2Concentration, PM2.5 are dense
The inquiry of the historical record of degree and instant situation.
9. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that described
Surface-type heat exchanger (5) is using the 8 combs design of full adverse current；Solidifying water pond (30) is set below surface-type heat exchanger (5), water pond is coagulated
(30) condensate is drained into by outdoor by solidifying water comb (31), pressure fan (6) uses efficient centrifugal blower fan, configuring direct current is brushless electricity
Machine, the air outlet (8) is disposed in the interior eminence, from ABS or wooden air outlets, it is to avoid air port condenses, and air supply direction can be with
Regulation, so that hot blast can more effectively send into workspace；Return air inlet (3) is arranged on the side wall away from ground 50cm-70cm height, is protected
Witness person is in recirculating zone.
10. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claim 1, it is characterised in that be
System and the system combined work of indoor ground-heating, ground heating system undertake thermic load, and fresh air purifying processing equipment (1) only undertakes fresh air and born
Lotus, manually or automatically pattern come be adjusted to ensure that processing after new air temperature it is only high.
11. it is applied to the full air-conditioning system of family formula fresh air purifying of cold district according to claims 2, it is characterised in that
Go out to set stop valve one (14) with the middle air entry that air injection enthalpy-increasing compressor (9) is connected in shwoot gas-liquid separator (13), prevent
Only the refrigerant at puff prot can produce backflow phenomenon.
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