CN202392953U - Refrigerant direct expansion evaporation type ground source heat pump unit air conditioning control system - Google Patents

Refrigerant direct expansion evaporation type ground source heat pump unit air conditioning control system Download PDF

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CN202392953U
CN202392953U CN2011205369194U CN201120536919U CN202392953U CN 202392953 U CN202392953 U CN 202392953U CN 2011205369194 U CN2011205369194 U CN 2011205369194U CN 201120536919 U CN201120536919 U CN 201120536919U CN 202392953 U CN202392953 U CN 202392953U
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circulatory
outlet
heat
compressor
refrigerant
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张淑勇
孙生根
李明娜
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SHANGHAI COLLODIN NEW ENERGY TECHNOLOGY Co Ltd
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SHANGHAI COLLODIN NEW ENERGY TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a refrigerant direct expansion evaporation type ground source heat pump unit air conditioning control system for a temperature and humidity independent control system, which includes a condenser, a circulatory system M and a circulatory system X, wherein both the circulatory system M and the circulatory system X are connected with the condenser and exchange heat with the soil through the condenser; the circulatory system M is a sensible heat treatment system; the inlet and the outlet of the circulatory system M are connected with a sensible heat treatment tail end system; the circulatory system X is a latent heat treatment system; and the inlet and the outlet of the latent heat treatment system are connected with a latent heat treatment tail end system. According to the utility model, high-temperature cold water at 18-21 DEG C in summer and low-temperature hot water at 30-35 DEG C in winter can be provided by the circulatory system M; low-temperature cold water at 7-12 DEG C for dehumidification in summer and high-temperature hot water at 40-45 DEG C in winter can be provided by the circulatory system X; and both the sensible heat and latent heat requirements can be taken into consideration, no plate-type heat exchanger is needed to be additionally arranged, and the energy efficiency ratio of the unit can be improved.

Description

The straight swollen evaporation type earth source heat pump unit air-conditioner control system of band refrigerant
Technical field
The utility model belongs to air-conditioning technical field, relates to a kind of earth source heat pump unit, relates in particular to the straight swollen evaporation type earth source heat pump unit air-conditioner control system of a kind of band refrigerant.
Background technology
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 80 W/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 24 m 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) 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 3840 m 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.
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.As shown in Figure 1; 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, temperature and humidity in the independent control room are distinguished by two systems.
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 CO 2, 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) variation of the indoor heat moisture ratio of adaptation.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.
Present humiture independence control air conditioner system air-conditioning; As shown in Figure 2; Because traditional earth source heat pump unit 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 temperature control system is produced.Sensible heat treatment system and source, the shared tableland of latent heat treatment system source pump.With the summer is example; The chilled water that earth source heat pump unit 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 ℃ low-temperature cold water new blower fan group is carried out dehumidification by condensation; 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) recirculated water that gets into the sensible heat end system heats up through plate type heat exchanger earlier through the cooling of earth source heat pump unit 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 earth source heat pump unit 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 earth source heat pump set structure with less than 2,3 and overcomes, and is necessary the straight swollen source evaporatively source pump that is used for the humiture autonomous control system that provides new.
Summary of the invention
The utility model technical problem to be solved provides the straight swollen evaporation type earth source heat pump unit air-conditioner control system of a kind of band refrigerant; Sensible heat and the latent heat demand in winter in summer can be taken into account and plate type heat exchanger need not be increased; Rationally the cascade utilization heat improves unit eer.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide the straight swollen evaporation type earth source heat pump unit air-conditioner control system of a kind of band refrigerant; Comprise condenser, circulatory system M and circulatory system X; Said circulatory system X all is connected with condenser with circulatory system M, carries out heat exchange through condenser and soil; Said circulatory system M is the sensible heat treatment system, and the import and export of said circulatory system M are handled end system with sensible heat and linked to each other; Said circulatory system X is the latent heat treatment system, and the import and export of said circulatory system X are handled end system through refrigerant pipe and latent heat and linked to each other.
The straight swollen evaporation type earth source heat pump unit air-conditioner control system of above-mentioned band refrigerant, wherein, said circulatory system X wears heat regenerator.
The straight swollen evaporation type earth source heat pump unit air-conditioner control system of above-mentioned band refrigerant, wherein, it is radiant panel, dry-type fan coil or capillary network that said sensible heat is handled end system.
The above-mentioned straight swollen source evaporatively source pump that is used for the humiture autonomous control system, wherein, said circulatory system X comprises compressor X1, four-way change-over valve X2, heating power expansion valve X3, device for drying and filtering X6, heat regenerator X7; Said compressor X1 outlet is connected with heat regenerator X7 import, and heat regenerator X7 outlet is connected with four-way change-over valve X2 one import, and said four-way change-over valve X2 one outlet is connected with condenser 5; Said condenser 5 outlets are connected with heating power expansion valve X3; Said heating power expansion valve X3 outlet is connected with refrigerant pipe XA; Said refrigerant pipe XB is connected with another import of four-way change-over valve X2; Another outlet of said four-way change-over valve X2 is connected with device for drying and filtering X6; Said device for drying and filtering X6 outlet is connected with compressor X1 import.
The straight swollen evaporation type earth source heat pump unit air-conditioner control system of above-mentioned band refrigerant, wherein, said compressor X1 is invariable frequency compressor or frequency-changeable compressor.
The straight swollen evaporation type earth source heat pump unit air-conditioner control system of above-mentioned band refrigerant; Wherein, Said circulatory system M comprises compressor M1, four-way change-over valve M2; Heating power expansion valve M3, evaporimeter M4, device for drying and filtering M6, said compressor M1 outlet is connected with four-way change-over valve M2 one import, and said four-way change-over valve M2 one outlet is connected with condenser; Said condensator outlet is connected with heating power expansion valve M3; Said heating power expansion valve M3 outlet is connected with evaporimeter M4; Said evaporimeter M4 outlet is connected with another import of four-way change-over valve M2; Another outlet of said four-way change-over valve M2 is connected with device for drying and filtering M6; Said device for drying and filtering M6 outlet is connected with compressor M1 import.Said compressor M1 is invariable frequency compressor or frequency-changeable compressor.
The utility model contrast prior art has following beneficial effect: the utility model provides is used for the straight swollen evaporation type earth source heat pump unit air-conditioner control system of band refrigerant that humiture is independently controlled; Circulatory system M is the sensible heat treatment system; 18~21 ℃ high temperature cold water is provided summer, 30~35 ℃ low-temperature water heating is provided winter; Circulatory system X is latent heat treatment system (a new blower fan group); The low-temperature cold water that dehumidifies with 7 ℃~12 ℃ is provided summer; Provide winter 40~45 ℃ heat to use high-temperature-hot-water; Thereby take into account sensible heat and the latent heat demand in winter in summer and need not increase plate type heat exchanger, rationally the cascade utilization heat improves unit eer.
Description of drawings
Fig. 1 is the principle schematic of humiture independence control air conditioner system;
Fig. 2 independently controls the geothermal heat pump air-conditioning system sketch map for existing humiture;
Fig. 3 independently controls the geothermal heat pump air-conditioning system sketch map for the utility model is used for humiture;
Fig. 4 is used for the straight swollen evaporation type earth source heat pump unit air-conditioner control system structural representation of band refrigerant of humiture autonomous control system for the utility model.
Among the figure:
2 pairs of 1 single cycle earth source heat pump units are source source pump 3 latent heat treatment systems circularly
4 condensate correcting-distribuing devices, 5 condensers, 6 plate type heat exchangers
7 waste heats are eliminated end equipment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe.
Fig. 1 is the principle schematic of humiture independence control air conditioner system, and Fig. 2 independently controls the geothermal heat pump air-conditioning system sketch map for existing humiture.
See also Fig. 2, the Cooling and Heat Source of existing humiture independence control air conditioner system adopts a traditional earth source heat pump unit.With the summer is example, the chilled water that existing single cycle earth source heat pump unit 1 output is 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.
See also Fig. 3; Adopt the special-purpose two source source pump 2 circularly of humiture independence control air conditioner system; Unit comprises condenser 5, circulatory system M and circulatory system X, and circulatory system X all is connected with condenser 5 with circulatory system M, carries out heat exchange through condenser 5 and soil.Circulatory system X and circulatory system M are respectively latent heat treatment system and sensible heat treatment system cold/heating agent of supply and cold/hot water.With the summer is example, circulatory system X output is cold/and heating agent, connect latent heat treatment system 3 through cold/heat medium pipe, be used for new wind degree of depth dehumidification by condensation; The high temperature cold water that circulatory system M output in summer is 18~21 ℃ directly is supplied to the condensate correcting-distribuing device 4 of sensible heat treatment system through inlet/outlet pipe, and 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. 4, circulatory system X comprises compressor X1, four-way change-over valve X2, heating power expansion valve X3, device for drying and filtering X6, and heat regenerator X7 forms.Said compressor X1 outlet is connected with heat regenerator X7 import, and heat regenerator X7 outlet is connected with four-way change-over valve X2 one import, and said four-way change-over valve X2 one outlet is connected with condenser 5; Said condenser 5 outlets are connected with heating power expansion valve X3; Said heating power expansion valve X3 outlet is connected with refrigerant pipe XA; Said refrigerant pipe XB is connected with another import of four-way change-over valve X2; Another outlet of said four-way change-over valve X2 is connected with device for drying and filtering X6; Said device for drying and filtering X6 outlet is connected with compressor X1 import.
The operation principle of circulatory system X is following:
Summer kind of refrigeration cycle; The flow direction of cold-producing medium is shown in Fig. 4 filled arrows; Cold-producing medium gets among the heat regenerator X7 through blast pipe after compressor X1 compression heats up; The refrigerant vapour of HTHP discharges in heat regenerator X7 and gets among the four-way change-over valve X2 after a part of heat is given the domestic hot-water; The refrigerant vapour of HTHP gets into condenser 5 (when heating as evaporimeter) after through four-way change-over valve X2 conversion flow direction, and the refrigerant vapour of HTHP became cold refrigerant liquid through the water-cooled in the pipe laying externally after but, and cold excessively refrigerant liquid gets into heating power expansion valve X3 throttling through pipeline; Get into the new blower fan group evaporimeter X4 (when heating as condenser) of outside through refrigerant pipe XA through the subcooled liquid of throttling; Evaporation heat absorption in evaporimeter X4, the new wind of outdoor high temperature is again through the rapid condensation cool-down dehumidification of evaporator X4, the refrigerant liquid after the heat absorption; The refrigerant gas that becomes low-temp low-pressure gets into four-way change-over valve X2 conversion flow direction through refrigerant pipe XB; The refrigerant gas that comes out from four-way change-over valve X2 gets into device for drying and filtering X6, and the refrigerant gas after the filtration is got back to compressor X1 through pipeline again, realizes whole kind of refrigeration cycle.
Winter heating's circulation; The flow direction of cold-producing medium is shown in Fig. 4 hollow arrow; Cold-producing medium gets among the heat regenerator X7 through blast pipe after compressor X1 compression heats up, and the refrigerant vapour of HTHP discharges in heat regenerator X7 and gets among the four-way change-over valve X2 after a part of heat is given the domestic hot-water, gets among the outside blower fan group evaporimeter X4 newly (playing condensation this moment) through refrigerant pipe XB behind the refrigerant vapour of the HTHP process four-way change-over valve X2 conversion flow direction; The refrigerant vapour of HTHP is the condensation heat release in evaporimeter X4; With the outdoor new wind of heat transferred through evaporator, the refrigerant vapour after the heat release becomes subcooled liquid and gets into heating power expansion valve X3 throttling through refrigerant pipe XA; Refrigerant liquid after the throttling gets into (evaporation this moment) evaporation heat absorption in the condenser 5; Draw the refrigerant gas that becomes low-temp low-pressure behind the heat of the water in the pipe laying externally, the refrigerant gas after the heat absorption gets into four-way change-over valve X2 through pipeline again, and the refrigerant gas behind the conversion flow direction gets into device for drying and filtering X6; Refrigerant gas after the filtration returns compressor X1, realizes the whole circulation that heats.
Among Fig. 4; Circulatory system M comprises compressor M1, four-way change-over valve M2; Heating power expansion valve M3, evaporimeter M4, device for drying and filtering M6, said compressor M1 outlet is connected with four-way change-over valve M2 one import, and said four-way change-over valve M2 one outlet is connected with condenser 5; Said condenser 5 outlets are connected with heating power expansion valve M3; Said heating power expansion valve M3 outlet is connected with evaporimeter M4; Said evaporimeter M4 outlet is connected with another import of four-way change-over valve M2; Another outlet of said four-way change-over valve M2 is connected with device for drying and filtering M6; Said device for drying and filtering M6 outlet is connected with compressor M1 import.Said compressor M1 is invariable frequency compressor or frequency-changeable compressor.
The operation principle of circulatory system M is following:
Summer kind of refrigeration cycle; The flow direction of cold-producing medium is shown in Fig. 4 filled arrows; Cold-producing medium gets into condenser 5 (when heating as evaporimeter) after through four-way change-over valve M2 conversion flow direction at the heat up back gets into four-way change-over valve M2 HTHP through blast pipe refrigerant vapour of compressor M1 compression, and the refrigerant vapour of HTHP became cold refrigerant liquid through the water-cooled in the pipe laying externally after but, and cold excessively refrigerant liquid is through pipeline entering heating power expansion valve M3 throttling; Get into evaporimeter M4 (when heating as condenser) through the subcooled liquid of throttling; The heat in the extraneous chilled water is drawn in the evaporation heat absorption in evaporimeter M4, produces 18 ℃-21 ℃ high temperature cold water; Supply sensible heat to handle end system cooling demand; Refrigerant liquid after the heat absorption, the refrigerant gas that becomes low-temp low-pressure gets into four-way change-over valve X2 conversion flow direction, and the refrigerant gas that comes out from four-way change-over valve X2 gets into device for drying and filtering X6; Refrigerant gas after the filtration is got back to compressor X1 through pipeline again, realizes whole kind of refrigeration cycle.Higher cooling water temperature has promoted the evaporating temperature of unit greatly, under the constant situation of condensation temperature, unit eer is greatly improved than common earth source heat pump.
Winter heating's circulation; The flow direction of cold-producing medium is shown in Fig. 4 hollow arrow; Cold-producing medium gets among the four-way change-over valve M2 through blast pipe in compressor M1 compression intensification back, and the refrigerant vapour of HTHP gets among the evaporimeter M4 (playing condensation this moment) after changing flow direction through four-way change-over valve M2, and the refrigerant vapour of HTHP is the condensation heat release in evaporimeter M4; In the system water that heat transferred is outside; The low-temperature water heating of producing 30 ℃ one 35 ℃ supplies sensible heat to handle the end system heat demand, and the refrigerant vapour after the heat release becomes subcooled liquid and gets into heating power expansion valve M3 throttling; Refrigerant liquid after the throttling gets into (evaporation this moment) evaporation heat absorption in the condenser 5; Draw the refrigerant gas that becomes low-temp low-pressure behind the heat of the water in the pipe laying externally, the refrigerant gas after the heat absorption gets into four-way change-over valve X2 through pipeline again, and the refrigerant gas behind the conversion flow direction gets into device for drying and filtering X6; Refrigerant gas after the filtration returns compressor X1, realizes the whole circulation that heats.Lower heat supply water temperature has promoted the condensation temperature of unit greatly, under the constant situation of evaporating temperature, unit eer is greatly improved than common heat pump.
In sum; The straight swollen evaporation type earth source heat pump unit air-conditioner control system of the band refrigerant that is used for the humiture autonomous control system that the utility model provides; Has following beneficial effect: 1. directly 18~21 ℃ high temperature cold water is provided summer to the terminal condensate correcting-distribuing device of sensible heat treatment system; Adopt 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 earth source heat pump unit 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 7~9 g/m3, guarantees indoor not dewfall; 4. utilize two separate light duty compressors to substitute a shared large-scale compressor, energy consumption further reduces.
Though the utility model discloses as above with preferred embodiment; Right its is not in order to limit the utility model; Any those skilled in the art; In spirit that does not break away from the utility model and scope, when can doing a little modification and perfect, so the protection domain of the utility model is when being as the criterion with what claims defined.

Claims (7)

1. the straight swollen evaporation type earth source heat pump unit air-conditioner control system of band refrigerant is characterized in that comprise condenser, circulatory system M and circulatory system X, said circulatory system X all is connected with condenser with circulatory system M, carries out heat exchange through condenser and soil; Said circulatory system M is the sensible heat treatment system, and the import and export of said circulatory system M are handled end system with sensible heat and linked to each other; Said circulatory system X is the latent heat treatment system, and the import and export of said circulatory system X are handled end system through refrigerant pipe and latent heat and linked to each other.
2. be with the straight swollen evaporation type earth source heat pump unit air-conditioner control system of refrigerant according to claim 1, it is characterized in that said circulatory system X wears heat regenerator.
3. be with the straight swollen evaporation type earth source heat pump unit air-conditioner control system of refrigerant according to claim 1, it is characterized in that, it is radiant panel, dry-type fan coil or capillary network that said sensible heat is handled end system.
4. like the straight swollen evaporation type earth source heat pump unit air-conditioner control system of each said band refrigerant of claim 1~3, it is characterized in that said circulatory system X comprises compressor X1, four-way change-over valve X2, heating power expansion valve X3, device for drying and filtering X6, heat regenerator X7; Said compressor X1 outlet is connected with heat regenerator X7 import, and heat regenerator X7 outlet is connected with four-way change-over valve X2 one import, and said four-way change-over valve X2 one outlet is connected with condenser 5; Said condenser 5 outlets are connected with heating power expansion valve X3; Said heating power expansion valve X3 outlet is connected with refrigerant pipe XA; Said refrigerant pipe XB is connected with another import of four-way change-over valve X2; Another outlet of said four-way change-over valve X2 is connected with device for drying and filtering X6; Said device for drying and filtering X6 outlet is connected with compressor X1 import.
5. like the straight swollen evaporation type earth source heat pump unit air-conditioner control system of the said band refrigerant of claim 4, it is characterized in that said compressor X1 is invariable frequency compressor or frequency-changeable compressor.
6. like the straight swollen evaporation type earth source heat pump unit air-conditioner control system of each said band refrigerant of claim 1~3; It is characterized in that; Said circulatory system M comprises compressor M1, four-way change-over valve M2; Heating power expansion valve M3, evaporimeter M4, device for drying and filtering M6, said compressor M1 outlet is connected with four-way change-over valve M2 one import, and said four-way change-over valve M2 one outlet is connected with condenser; Said condensator outlet is connected with heating power expansion valve M3; Said heating power expansion valve M3 outlet is connected with evaporimeter M4; Said evaporimeter M4 outlet is connected with another import of four-way change-over valve M2; Another outlet of said four-way change-over valve M2 is connected with device for drying and filtering M6; Said device for drying and filtering M6 outlet is connected with compressor M1 import.
7. like the straight swollen evaporation type earth source heat pump unit air-conditioner control system of the said band refrigerant of claim 6, it is characterized in that said compressor M1 is invariable frequency compressor or frequency-changeable compressor.
CN2011205369194U 2011-12-20 2011-12-20 Refrigerant direct expansion evaporation type ground source heat pump unit air conditioning control system Expired - Fee Related CN202392953U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519100A (en) * 2011-12-20 2012-06-27 上海克络蒂新能源科技有限公司 Direct-expansion evaporation ground source heat pump unit for temperature-humidity independent control system
CN105910340A (en) * 2016-04-14 2016-08-31 常州大学 Condensation heat recovery GSHP (Ground Source Heat Pump) triple generation system
CN111623494A (en) * 2020-03-10 2020-09-04 江苏慧居建筑科技有限公司 Temperature and humidity separately-controlled air conditioning system
CN112594809A (en) * 2020-11-26 2021-04-02 依米康科技集团股份有限公司 Subway channel type evaporative cold water cooling air system and control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519100A (en) * 2011-12-20 2012-06-27 上海克络蒂新能源科技有限公司 Direct-expansion evaporation ground source heat pump unit for temperature-humidity independent control system
CN105910340A (en) * 2016-04-14 2016-08-31 常州大学 Condensation heat recovery GSHP (Ground Source Heat Pump) triple generation system
CN111623494A (en) * 2020-03-10 2020-09-04 江苏慧居建筑科技有限公司 Temperature and humidity separately-controlled air conditioning system
CN112594809A (en) * 2020-11-26 2021-04-02 依米康科技集团股份有限公司 Subway channel type evaporative cold water cooling air system and control method

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