CN102384553A - Improved structure of air source heat pump unit for temperature and humidity independent control air-conditioning system - Google Patents
Improved structure of air source heat pump unit for temperature and humidity independent control air-conditioning system Download PDFInfo
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Abstract
The invention relates to an improved structure of an air source heat pump unit for a temperature and humidity independent control air-conditioning system. The unit can provide 18 to 21 DEG C high-temperature cold water in summer and 30 to 35 DEG C low-temperature hot water in winter for a sensible heat processing tail end system of the temperature and humidity independent control air-conditioning system, and also can provide low-temperature coolants for dehumidification in summer and high-temperature heating media in winter for a fresh air unit; and in the air source heat pump unit connected with the sensible heat processing tail end system, a special compressor is adopted, and an energy efficiency ratio is 8:1, so the efficiency of the system is improved greatly, and the waste of energy is avoided. Simultaneously, only a copper water pipe is connected between the heat pump unit and an indoor tail end system simply, so the heat pump unit is easy to install, and investment is reduced.
Description
Technical field
The present invention relates to humiture independence control air conditioner system, relate in particular to net for air-source heat pump units.
Background technology
One, at present the heat extraction hydrofuge of air conditioning mode all is through aerial cooler air to be cooled off and dehumidification by condensation, the air of cool drying is sent into indoorly again, realizes the purpose of heat extraction hydrofuge.There is following problem in the air conditioning mode of conventional humiture mixed processing:
1, energy waste.Use a cover system to freeze simultaneously and dehumidify; Get rid of indoor surplus wetting in order to satisfy with condensation method; The temperature of low-temperature receiver need be lower than the dew-point temperature of room air; Consider the heat transfer temperature difference and the medium transport temperature difference, realizes that 16.6 ℃ dew-point temperature needs about 7 ℃ sink temperature, this is that the evaporator refrigerant temperature of direct evaporator in the chilled water, room air conditioner of 5～7 ℃ of existing air-conditioning system employings is also how 5 ℃ reason.In air-conditioning system, account for total load sensible heat load part over half, the heat that originally can adopt the high temperature low-temperature receiver to drain is but handled with shared 5～7 ℃ low temperature cold source of dehumidifying, causes energy to utilize the waste on the grade.And though meet the demands through the air humidity (water capacity) behind the dehumidification by condensation, temperature is low excessively, also needs heat more sometimes, has caused the further waste and the loss of the energy.
2, be difficult to adapt to the variation of heat moisture ratio.Air is cooled off and dehumidify through condensing mode, the sensible heat of its absorption and latent heat are than can only changing in certain scope, and the heat moisture ratio of building actual needs changes in the larger context.Generally be the control of sacrificing, compromise, cause the too high or too low phenomenon of indoor relative humidity through the requirement of only satisfying indoor temperature to humidity.Too high result is uncomfortable, and then reduces setting value at room temperature, improves thermal comfort through reducing room temperature, causes the unnecessary increase of energy consumption; Relative wet is spent to hang down and also will be caused making the energy consumption increase of the outer new wind of process chamber owing to increase with outdoor enthalpy difference.
3, cause indoor air quality to descend, grow and propagate pollution such as mould.Most of air-conditionings rely on air through cold surface air to be carried out cool-down dehumidification, and this just causes cold surface to become moist surface even produces ponding, and air-conditioning is shut down the desirable place that the such moist surface in back just becomes mold propagates.Air-conditioning system breeding and propagation mould become the main cause that air-conditioning possibly cause health problem.In addition, the major pollutants of China's most city are still pellet at present, and the outdoor air that therefore effectively filters the air-conditioning system introducing is a major issue of keeping the indoor healthy environment.Yet must be the dust accumulation place in the filter, spatter some condensed waters, also become the desirable place of various microbial reproductions if float again.The frequent clean filter was both unrealistic, solution that neither be basic.
4, traditional indoor end equipment has limitation, high wind, noise, takes up space, and generally will invest air-conditioning and heating two cover systems.Do not make wind pushing temperature low excessively again for getting rid of the surplus wet while of enough waste heats, just require bigger circulating ventilation amount.If for example every square metre of construction area has 80W/m
2Sensible heat needs to get rid of, and the room design temperature is 25 ℃, and when wind pushing temperature was 15 ℃, the air circulation that requires was 24m
3/ hr/m
2, this just often causes indoor very big air to flow, and makes the occupant produce uncomfortable blowing feeling.For reducing this blowing feeling, will improve the indoor air flow tissue through position and the form of improving air outlet.This often will be in indoor layout air channel, thereby reduces interior net storey height or strengthen the floor gap distance.The also as easy as rolling off a log airborne noise that causes of very big ventilation, and be difficult to effectively eliminate.In the winter time,,, often do not use hot blast even air-conditioning system has been installed for fear of blowing feeling yet, but through another set of heating system (like heating radiator) heat supply.So just cause the indoor two set of environments control air-conditioning system that repeats to install, supply the summer in winter to use respectively.
5, the problem of transmission & distribution energy consumption.For the task of accomplishing indoor environmental condition control just needs distributing system, take away waste heat, surplus wet, CO
2, smell etc.In central air conditioner system, blower fan, water pump have consumed the power consumption of 40%～70% whole air-conditioning system.In conventional central air conditioner system, adopt the form of all-air system more.All colds all transmit with air, cause transmission & distribution efficient very low.Comparatively speaking, 1m
3Heat that water is carried and 3840m
3The heat that air is carried is suitable.
In addition, serious day by day along with energy problem becomes as summer air-conditioning power with low grade heat energy and to press for.The a large amount of cogeneration of heat and power central heating system of northern area can't move owing to no thermic load in summer at present, and cogeneration of heat and power in the summer power generating equipment that makes electric load the peak occur is shut down on the contrary, perhaps by pure power generation mode fallback.If can utilize this part heat drive air-conditioning, both saved the air-conditioning power consumption, cogeneration power plant is normally moved, increase generating capacity.Can slow down the pressure of supplying power summer like this, improve energy utilization rate again, be that co-generation unit continues development key.Because air conditioner load changed noticeably in one day, with cogeneration power plant heat energy being provided not is well matched, how to realize effective accumulation of energy, is the problem that exists in the middle of heat energy uses with the contradiction of coordinating the two yet.
In sum, the widespread demand of air-conditioning, the needs of human settlement's health and the requirement of energy resource system balance have proposed challenge to present air conditioning mode.The characteristics that new air-conditioning should possess are: reduce indoor air output, high efficient heat exchanging end, adopt low-grade energy, cold and hot energy-storage system is set.From as above requirement, generally believe that at present it is an effective solution route that humiture is independently controlled air-conditioning technical.
Two, humiture independence control air conditioner system adopts temperature and humidity two to overlap independently air-conditioning control air-conditioning system is controlled respectively, conditioning chamber is interior temperature and humidity, thereby has avoided the loss that the wet Combined Treatment of heat is brought in the conventional air-conditioning system.Because adopting, temperature, humidity independently controls air-conditioning system; Can satisfy the not constantly requirement of variation of chummery heat moisture ratio of zones of different and the same area; Overcome the requirement that is difficult to satisfy simultaneously temperature, humidity parameter in the conventional air-conditioning system, avoided indoor humidity to cross and exceeded low phenomenon.
Basic composition is of humiture independence control air conditioner system: sensible heat treatment system and latent heat treatment system, two system's independent regulation are distinguished temperature and humidity in the control room.
The sensible heat treatment system comprises high temperature low-temperature receiver and waste heat elimination end equipment, adopts water to carry media as energy.Because the task of dehumidifying is born by the system that handles latent heat, thereby the cold water supply water temperature of sensible heat system no longer is 7 ℃ in the conventional dehumidification by condensation air-conditioning system, but brings up to about 18 ℃, thereby condition is provided for the use of natural cold source.Even adopt the mechanical refrigeration mode, the coefficient of performance of refrigeration machine also is greatly improved.Waste heat is eliminated end equipment can adopt various ways such as radiant panel, dry-type fan coil or capillary network, because the temperature that supplies water is higher than the dew-point temperature of room air, thereby does not have the danger of dewfall.
The latent heat treatment system is used to remove indoor CO2, foreign flavor indoors etc., to guarantee IAQ.This system is made up of fresh air processor group, supply terminal device, adopts new wind to carry media as energy.In handling the system of latent heat, owing to not necessarily need treatment temperature, thereby the processing of humidity has several different methods, like dehumidification by condensation, adsorption and dehumidification etc.
Humiture independence control air conditioner system has been realized the control respectively of indoor temperature and humidity.Especially realized the synchronous increase and decrease of resh air requirement with personnel amount, thereby avoided variable air volume system personnel in winter to increase, thermic load reduces, the problem that resh air requirement also decreases; Compare with present fan-coil unit with fresh air mode; Removed water pond and water removal system with fixed attention with fixed attention from, thoroughly eliminated this hidden danger that often goes wrong in the actual engineering, simultaneously owing to no longer there is moist surface; Eradicate the hotbed that grows mould, can effectively improve indoor air quality.Because indoor relative humidity can maintain below 60% always, higher room temperature (26 ℃) just can reach the thermal comfort requirement.This has just been avoided having to reduce room temperature (even to 20 ℃) because relative humidity is too high, to keep the problem that comfort level requires.Both reduced operation energy consumption, reduced again because the excessive thermal shock healthhazard that causes of indoor/outdoor temperature-difference.
Because latent heat is born by independent fresh air treatment system, thereby in temperature control (waste heat removal) system, no longer adopt 7 ℃ cold water to satisfy the requirement of cooling and dehumidifying simultaneously, but adopt about 18 ℃ cold water can satisfy the cooling requirement.The cold water of this temperature requirement is that the use of a lot of natural cold sources provides condition; Like phreatic water, obtain cold water etc. through the soil source heat exchanger; The cold water leaving water temperature of deep well reinjection and soil source heat exchanger with make the year-round average temperature of land used closely related, a lot of areas of China can directly utilize this mode that 18 ℃ of cold water are provided.In some dry area (like Xinjiang etc.) obtain 18 ℃ of cold water through the method for direct evaporation or indirect evaporation.
Even adopt the mechanical refrigeration mode, because the compression ratio that requires is very little, Carnot cycle can obtain according to refrigeration, and the desirable COP of refrigeration machine will be improved largely.If evaporating temperature is brought up to 14～16 ℃ from 2～3 ℃ of conventional handpiece Water Chilling Units, when the condensation temperature perseverance is 40 ℃, the COP of CARNOT REFRIGERATOR will bring up to 11.0～12.0 from 7.2～7.5.
Compare with fan-coil unit with fresh air mode of generally using at present or full air mode, the characteristics of humiture independence control air conditioner system may be summarized as follows:
1, adapts to the variation of indoor heat moisture ratio.Humiture independence control air conditioner system is controlled the temperature and humidity in room respectively, can satisfy the building heat moisture ratio in time with the variation of operating position, control indoor environment comprehensively.And, therefore can obtain better indoor environmental condition control effect and air quality according to indoor occupant quantity regulating resh air requirement.Comfort level improves greatly.Not having the high wind sense, do not have noise, do not spread germs, is a kind of healthy green air conditioning mode.
2, terminal mode is different.Can adopt the absorption of radiant end or dry-type fan coil or sensible heat is provided, modes such as employing replacement aeration are seen dry new wind off and are removed latent heat (surplus wet), shared same end equipment of summer in winter.The system that handles sensible heat only needs 18 ℃ cold water, and this can provide with energy-conservation mode through multiple cheaply, has reduced operation energy consumption.
3, can utilize low-grade energy, even adopt common air-conditioning machine set system efficiency also can improve greatly.These characteristics help the extensive selection utilization of the energy, are particularly conducive to the low-grade renewable sources of energy of development and use: as solar energy, ability, steam power plant's waste heat recovery etc., it is significant that energy-saving and emission-reduction are lowered consumption.
Three, in the present humiture independence control air conditioner system air-conditioning; Because traditional net for air-source heat pump units can only provide a kind of water of temperature, high temperature cold water that the sensible heat treatment system needs and low-temperature water heating generally increase plate type heat exchanger through system and produce with the control air-conditioning system.The shared net for air-source heat pump units of sensible heat treatment system and latent heat treatment system.With the summer is example; The chilled water that the net for air-source heat pump units output is 7 ℃; One the tunnel directly is supplied to the fresh air dehumidification machine of latent heat treatment system; Condensation before impelling a part of steam in the new wind when cooling off new wind in inlet chamber, thus new wind dehumidified, further reaches the purpose that reduces indoor air humidity; One the tunnel sends into plate type heat exchanger, with 7 ℃ chilled waters heat up be 18～21 ℃ high temperature cold water after, send into condensate correcting-distribuing device again, the waste heat that is assigned to the sensible heat treatment system through condensate correcting-distribuing device is eliminated end equipment.The weak point of this structure is:
1, with 7 ℃ cryogenic freezing water to fresh air dehumidification; Because the surface cooler temperature of fresh air dehumidification machine is high, the absolute moisture content of the new wind in dehumidifying back 13～15 grams/cube, indoor relative humidity 60～65%; Human body sensory is clouding; Have very big dewfall risk simultaneously, when the outdoor environment temperature high humility is big sensible heat handle end surface will dewfall, this also is the common fault that present humiture independence control air conditioner system has.
2, the recirculated water that gets into the sensible heat end system heats up through plate type heat exchanger earlier through the net for air-source heat pump units cooling again, has caused energy waste.
3, plate type heat exchanger is installed and need be disposed sensible heat processing end side water pump and corresponding control module, room system is complicated, increases the investment of machine room area and system.
For less than 1, reduce the temperature of chilled water, can further reduce the absolute moisture content of new wind, often adopt 2～3 ℃ freezing cold water; If but the freezing temperature of net for air-source heat pump units output is reduced to 2～3 ℃, before getting into sensible heat processing end system, need carry out higher temperature rise at plate type heat exchanger, energy waste further aggravates.Therefore, less than 1 is difficult to take into account in present net for air-source heat pump units structure with less than 2,3 and overcomes.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can provide low-grade energy for handling the sensible heat system, can carry out degree of depth dehumidifying to new wind in the VMC again, further cuts down the consumption of energy simultaneously, the net for air-source heat pump units that is exclusively used in humiture independence control air conditioner system of simplified structure.
The present invention realizes through following technical scheme:
A kind of net for air-source heat pump units structure-improved of humiture independence control air conditioner system; Said humiture independence control air conditioner system comprises sensible heat treatment system and latent heat treatment system; It is radiant panel, dry-type fan coil or capillary network that the waste heat of sensible heat treatment system is eliminated end equipment, it is characterized in that:
Said net for air-source heat pump units comprises separate net for air-source heat pump units X and net for air-source heat pump units M,
Net for air-source heat pump units M output cold/hot water, the waste heat that is connected the sensible heat treatment system through water inlet pipe MA with outlet pipe MB is eliminated end equipment,
Net for air-source heat pump units X output is cold/heating agent, be connected the latent heat treatment system through cold/heat medium enter hose XA with cold/heat medium produce hose XB,
Net for air-source heat pump units M and net for air-source heat pump units X are connected with finned heat exchanger respectively,
Said cold/hot water is 18～21 ℃ a high temperature cold water in summer, winter 30～35 ℃ low-temperature water heating,
Said refrigerant is that the low temperature refrigerant is used in 2～3 ℃ dehumidifying in summer, and winter heating is with 50 ℃ high temperature heating agent.
Net for air-source heat pump units adopts separate net for air-source heat pump units X and net for air-source heat pump units M; Both can eliminate end equipment high temperature cold water directly is provided for the waste heat of sensible heat treatment system; Need not plate type heat exchanger and relative sensible heat and handle end side water pump, control module, again can be for the fresh air dehumidification system provide temperature lower refrigerant, refrigerant is straight swollen evaporation in the fresh air dehumidification machine; The new pre-cooled better effects if of wind is guaranteed degree of depth dehumidifying simultaneously.
Further; Net for air-source heat pump units X can adopt following structure: compressor X1 outlet connects the import of heat regenerator X12 through high-voltage switch gear X2, needle-valve X3; The outlet of heat regenerator X12 is connected with the mouth of pipe a of four-way change-over valve X4; The mouth of pipe b of four-way change-over valve X4 connects the finned heat exchanger import; Mouth of pipe c is connected with the import of gas-liquid separator X13, and mouth of pipe d connects refrigerant and goes out to manage XB, and the outlet of gas-liquid separator X13 is connected to the import of compressor X1 through needle-valve X3, low tension switch X14; The outlet of finned heat exchanger divides two-way to be connected with the import of check valve X6 and the outlet of check valve X7 respectively; The outlet of the outlet of check valve X6 and check valve X9 is connected with the import of heating power expansion valve X10, is connected with the import of check valve X7, X8 behind the outlet process device for drying and filtering X11 of heating power expansion valve X10, and cold/heat medium produce hose XA exports with check valve X8 with the import of check valve X9 and is connected.
With the kind of refrigeration cycle is example, and the compressor that compressor X1 discharges is discharged the cold media gas of HTHP, under all constant situation of temperature and pressure, gets into finned heat exchanger through mouth of pipe a, the b of four-way change-over valve X4; The gas of HTHP is become the refrigerant liquid of normal temperature high voltage by air cooling in condenser, then flow of liquid cross check valve X6, after heating power expansion valve X8 step-down, cause the gasification of part refrigerant liquid; Make it become the gas-liquid mixture of low-temp low-pressure; After cooling medium liquid pipe XA gets into the evaporimeter of latent heat treatment system, the refrigerant liquid in evaporimeter absorbs heat, the evaporation gasification under the constant situation of pressure through device for drying and filtering X11, check valve X8; Simultaneously; Under the effect of blower fan, a large amount of new distinguished and admirable evaporator outer surfaces, the energy in the new wind is absorbed by the latent heat treatment system; New wind-warm syndrome degree reduces rapidly, the condensation of part steam, becomes the lower cold air of absolute moisture content and gets in the air conditioning chamber.The steam of the low-temp low-pressure that evaporimeter comes out is got back to compressor X1 behind refrigerant tracheae XB and gas-liquid separator X10, become the gas of HTHP after the compression, gets into next circulation.
It is just in time opposite with kind of refrigeration cycle to heat circulation.
Further again, the net for air-source heat pump units M of humiture independence control air conditioner system can adopt following structure:
Compressor M1 outlet is connected with the mouth of pipe a of four-way change-over valve M4 through high-voltage switch gear M2, needle-valve M3; The mouth of pipe b of four-way change-over valve M4 connects the finned heat exchanger import; Mouth of pipe c is connected with the import of gas-liquid separator M13; Mouth of pipe d connects the outlet of using side heat exchanger M12; The import that the outlet process needle-valve M3 of gas-liquid separator M13, low tension switch M14 are connected to compressor M1, the outlet of finned heat exchanger divides two-way to be connected with the import of check valve M6 and the outlet of check valve M7 respectively, and the outlet of the outlet of check valve M6 and check valve M9 is connected with the import of heating power expansion valve M10; Be connected with the import of check valve M7, M8 behind the outlet process device for drying and filtering M7 of heating power expansion valve M10, be connected to the import of using side heat exchanger M12 after the import of check valve X9 and check valve X8 outlet converge.Use on the side heat exchanger M12 and be configured into water pipe MB and outlet pipe MA.
Its circulation route and net for air-source heat pump units X are similar.
Further again, the compressor M1 of net for air-source heat pump units M adopts dedicated compressor, when refrigeration, can make the leaving water temperature of water-side heat M12 reach 18～21 ℃, and systematic energy efficiency ratio is up to 8.0, and energy-saving effect is obvious.
Further again, compressor M1 and compressor X1 are invariable frequency compressor or frequency-changeable compressor.
Further again; Can between the mouth of pipe a of needle-valve X3 and four-way change-over valve X4, dispose heat regenerator X12; Needle-valve X3 connects heat regenerator X12 import, and heat regenerator X12 outlet connects the mouth of pipe a of four-way change-over valve X4, has running water inlet XK and domestic hot-water on the heat regenerator X12 and exports XL.The cold media gas of the HTHP water-to-water heat exchanger X12 that flows through, the water with among a part of heat transferred water-to-water heat exchanger X12 is heated for domestic water and uses.
Beneficial effect of the present invention is:
1. directly to the terminal condensate correcting-distribuing device of sensible heat treatment system 18～21 ℃ high temperature cold water is provided summer, adopts dedicated compressor, Energy Efficiency Ratio can reach 8: 1, avoids energy waste;
2. save plate type heat exchanger in the engineering water-feeding system, sensible heat processing side water pump and control air-conditioning system, sensible heat handle only need simply be connected between end system net for air-source heat pump units and the condensate correcting-distribuing device copper pipe water pipe, simple and direct, reduce and invest;
3. the fresh air dehumidification unit adopts the straight swollen evaporation of 2～3 ℃ of refrigerants in summer, degree of depth dehumidifying, and the air-supply water capacity reaches 7～9g/m3, guarantees indoor not dewfall;
4. utilize two separate light duty compressors to substitute a shared large-scale compressor, energy consumption further reduces.
Description of drawings
Fig. 1 is the principle schematic of humiture independence control air conditioner system
Fig. 2 is the structural representation of existing humiture independence control air conditioner system
Fig. 3 is the structural representation of humiture independence control air conditioner system of the present invention
Fig. 4 is a kind of net for air-source heat pump units preferred structure sketch map of humiture independence control air conditioner system
In Fig. 1～4: 1 is net for air-source heat pump units M, and 2 is net for air-source heat pump units X, and 3 is the latent heat treatment system; 4 is condensate correcting-distribuing device, and 5 is finned heat exchanger, and 6 is plate type heat exchanger; 7 is the waste heat elimination end equipment of sensible heat treatment system, and 8 are existing net for air-source heat pump units.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Among Fig. 2, the Cooling and Heat Source of existing humiture independence control air conditioner system adopts a traditional net for air-source heat pump units.With the summer is example, the chilled water that existing net for air-source heat pump units 8 outputs are 7 ℃, and one the tunnel directly is supplied to latent heat treatment system 3; One the tunnel sends into plate type heat exchanger 6, with 7 ℃ chilled waters heat up be 18～21 ℃ high temperature cold water after, send into condensate correcting-distribuing device 4 again, the waste heat that is assigned to the sensible heat treatment system through condensate correcting-distribuing device 4 is eliminated end equipment 7 back refrigeration.
Among Fig. 3; Adopt the special-purpose net for air-source heat pump units of humiture independence control air conditioner system, unit comprises net for air-source heat pump units M1 and net for air-source heat pump units X2, is respectively latent heat treatment system and sensible heat treatment system cold/heating agent of supply and cold/hot water; Net for air-source heat pump units X2 output is cold/heating agent; Be connected latent heat treatment system 3 through cold/heat medium produce hose XB with cold/heat medium enter hose XA, the high temperature cold water of net for air-source heat pump units M1 output and low-temperature water heating are supplied to the waste heat of sensible heat treatment system to eliminate end equipment 7 through water inlet pipe MA and outlet pipe MB; Cold/hot water is 18～21 ℃ a high temperature cold water in summer; Winter 30～35 ℃ low-temperature water heating, refrigerant is that the low temperature refrigerant is used in 2～3 ℃ dehumidifying in summer, winter heating is with 50 ℃ high temperature heating agent.
Among Fig. 4; The compressor X1 outlet of net for air-source heat pump units X connects the import of heat regenerator X12 through high-voltage switch gear X2, needle-valve X3; The outlet of heat regenerator X12 is connected with the mouth of pipe a of four-way change-over valve X4; The mouth of pipe b of four-way change-over valve X4 connects finned heat exchanger 5 imports; Mouth of pipe c is connected with the import of gas-liquid separator X13, and mouth of pipe d connects refrigerant and goes out to manage XB, and the outlet of gas-liquid separator X13 is connected to the import of compressor X1 through needle-valve X3, low tension switch X14; The outlet of finned heat exchanger 5 divides two-way to be connected with the import of check valve X6 and the outlet of check valve X7 respectively; The outlet of the outlet of check valve X6 and check valve X9 is connected with the import of heating power expansion valve X10, is connected with the import of check valve X7, X8 behind the outlet process device for drying and filtering X11 of heating power expansion valve X10, and cold/heat medium produce hose XA exports with check valve X8 with the import of check valve X9 and is connected.
The compressor M1 outlet of net for air-source heat pump units M1 is connected with the mouth of pipe a of four-way change-over valve M4 through high-voltage switch gear M2, needle-valve M3; The mouth of pipe b of four-way change-over valve M4 connects finned heat exchanger 5 imports; Mouth of pipe c is connected with the import of gas-liquid separator M13; Mouth of pipe d connects the outlet of using side heat exchanger M12; The import that the outlet process needle-valve M3 of gas-liquid separator M13, low tension switch M14 are connected to compressor M1, the outlet of finned heat exchanger 5 divides two-way to be connected with the import of check valve M6 and the outlet of check valve M7 respectively, and the outlet of the outlet of check valve M6 and check valve M9 is connected with the import of heating power expansion valve M10; Be connected with the import of check valve M7, M8 behind the outlet process device for drying and filtering M7 of heating power expansion valve M10, be connected to the import of using side heat exchanger M12 after the import of check valve X9 and check valve X8 outlet converge.Use on the side heat exchanger M12 and be configured into water pipe MF and outlet pipe MA.
The direction of arrow among Fig. 4 is the refrigerant loop direction in the kind of refrigeration cycle.With net for air-source heat pump units X is example, and the compressor that compressor X1 discharges is discharged the cold media gas of HTHP, under all constant situation of temperature and pressure, gets into finned heat exchanger 5 through mouth of pipe a, the b of four-way change-over valve X4; The gas of HTHP is become the refrigerant liquid of normal temperature high voltage by air cooling in condenser, then flow of liquid cross check valve X6, after heating power expansion valve X8 step-down, cause the gasification of part refrigerant liquid; Make it become the gas-liquid mixture of low-temp low-pressure; After cooling medium liquid pipe XA gets into the evaporimeter of latent heat treatment system, the refrigerant liquid in evaporimeter absorbs heat, the evaporation gasification under the constant situation of pressure through device for drying and filtering X11, check valve X8; Simultaneously; Under the effect of blower fan, a large amount of new distinguished and admirable evaporator outer surfaces, the energy in the new wind is absorbed by the latent heat treatment system; New wind-warm syndrome degree reduces rapidly, the condensation of part steam, becomes the lower cold air of absolute moisture content and gets in the air conditioning chamber.The steam of the low-temp low-pressure that evaporimeter comes out is got back to compressor X1 behind refrigerant tracheae XB and gas-liquid separator X10, become the gas of HTHP after the compression, gets into next circulation.
The circulation route of net for air-source heat pump units and net for air-source heat pump units X are similar.
It is just in time opposite with kind of refrigeration cycle to heat circulation.
Claims (5)
1. the net for air-source heat pump units structure-improved of a humiture independence control air conditioner system; Said humiture independence control air conditioner system comprises sensible heat treatment system and latent heat treatment system (3); It is radiant panel, dry-type fan coil or capillary network that the waste heat of sensible heat treatment system is eliminated end equipment (7), it is characterized in that:
Said net for air-source heat pump units comprises separate net for air-source heat pump units X (2) and net for air-source heat pump units M (1),
Net for air-source heat pump units M (1) output cold/hot water, the waste heat that is connected the sensible heat treatment system through water inlet pipe MA with outlet pipe MB is eliminated end equipment (7),
Net for air-source heat pump units X (2) output is cold/heating agent, be connected latent heat treatment system (3) through cold/heat medium enter hose XA with cold/heat medium produce hose XB,
Net for air-source heat pump units M (1) and net for air-source heat pump units X (2) are connected with finned heat exchanger (5) respectively,
Said cold/hot water is 18～21 ℃ a high temperature cold water in summer, winter 30～35 ℃ low-temperature water heating,
Said refrigerant is that the low temperature refrigerant is used in 2～3 ℃ dehumidifying in summer, and winter heating is with 50 ℃ high temperature heating agent.
2. humiture independence control air conditioner system net for air-source heat pump units structure-improved according to claim 1 is characterized in that:
The compressor X1 outlet of said net for air-source heat pump units X (2) connects the import of heat regenerator X12 through high-voltage switch gear X2, needle-valve X3; The outlet of heat regenerator X12 is connected with the mouth of pipe a of four-way change-over valve X4; The mouth of pipe b of four-way change-over valve X4 connects finned heat exchanger (5) import; Mouth of pipe c is connected with the import of gas-liquid separator X13; Mouth of pipe d connects refrigerant and goes out to manage XB; The outlet of gas-liquid separator X13 connects compressor X1 import through needle-valve X3, low tension switch X14, and the outlet of finned heat exchanger (5) divides two-way, and outlet is connected with check valve X7 with check valve X6 import respectively, and outlet is connected with heating power expansion valve X10 import with check valve X9 in check valve X6 outlet; Be connected with the import of check valve X7, the import of X8 behind the outlet process device for drying and filtering X11 of heating power expansion valve X10, cold/heat medium produce hose XA exports with check valve X8 with the import of check valve X9 and is connected.
3. humiture independence control air conditioner system net for air-source heat pump units structure-improved according to claim 1 is characterized in that:
The compressor M1 outlet of said net for air-source heat pump units M (1) is connected with the mouth of pipe a of four-way change-over valve M4 through high-voltage switch gear M2, needle-valve M3; The mouth of pipe b of four-way change-over valve M4 connects finned heat exchanger (5) import; Mouth of pipe c is connected with the import of gas-liquid separator M13; Mouth of pipe d connects the outlet of using side heat exchanger M12; The outlet of gas-liquid separator M13 is connected to the import of compressor M1 through needle-valve M3, low tension switch M14; The outlet of finned heat exchanger (5) divides two-way to be connected with the import of check valve M6 and the outlet of check valve M7 respectively, and the outlet of the outlet of check valve M6 and check valve M9 is connected with the import of heating power expansion valve M10, is connected with the import of check valve M7, M8 behind the outlet process device for drying and filtering M7 of heating power expansion valve M10; Be connected to the import of using side heat exchanger M12 after the import of check valve X9 and check valve X8 outlet converge, use on the side heat exchanger M12 and be configured into water pipe MB and outlet pipe MA.
4. humiture independence control air conditioner system net for air-source heat pump units structure-improved as claimed in claim 1 is characterized in that: said compressor M1 and compressor X1 are invariable frequency compressor or frequency-changeable compressor.
5. humiture independence control air conditioner system net for air-source heat pump units structure-improved as claimed in claim 1; It is characterized in that: configuration heat regenerator X12 between the mouth of pipe a of said needle-valve X3 and four-way change-over valve X4; Needle-valve X3 connects heat regenerator X12 import; Heat regenerator X12 outlet connects the mouth of pipe a of four-way change-over valve X4, has cooling water inlet XK and hot water outlet XL on the heat regenerator X9.
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| CN2011103488333A CN102384553A (en) | 2011-11-07 | 2011-11-07 | Improved structure of air source heat pump unit for temperature and humidity independent control air-conditioning system |
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Application publication date: 20120321 |