CN1160536C - Central air conditioning system at terminal of geothermal heat pump radiation - Google Patents

Central air conditioning system at terminal of geothermal heat pump radiation Download PDF

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Publication number
CN1160536C
CN1160536C CNB021577307A CN02157730A CN1160536C CN 1160536 C CN1160536 C CN 1160536C CN B021577307 A CNB021577307 A CN B021577307A CN 02157730 A CN02157730 A CN 02157730A CN 1160536 C CN1160536 C CN 1160536C
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China
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air
water
heat exchanger
outlet
links
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CNB021577307A
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Chinese (zh)
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CN1421663A (en
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刘洪胜
陈江平
陈芝久
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上海交通大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

Abstract

The present invention relates to a central air conditioning system at the radiation terminal of a geothermal heat pump, which comprises a soil heat exchange fluid circulation system, a refrigerant circulation system, a primary air conditioning water circulation system, a secondary air conditioning water circulation system, a fresh air system and an air exhausting system. In summer, the radiation air conditioning terminal absorbs heat from an air conditioning zone, and the heat is transferred to the refrigerant circulation system through the primary air conditioning water system and the secondary air conditioning water system; then, the heat is dispersed into soil through the soil heat exchange liquid circulation system. In winter, a soil heat exchanger absorbs heat from soil for the air conditioning zone; the refrigerant circulation system is reversible; the refrigerant circulation system can be used for cooling and dehumidifying fresh air in summer, and can be used for heating and humidifying the fresh air in winter; in transition seasons, the air quality of the air conditioning zone is regulated through the fresh air system and the air exhausting system. The present invention makes use of the radiation air conditioning terminal and inferior geothermal energy, enhances the efficiency of an air conditioner set, and has the overall disadvantages of the existing air conditioning device of energy saving, environmental protection, health, comfort, etc. The present invention is suitable for buildings in various weather types, and is especially suitable for villa type buildings.

Description

The terminal central air conditioner system of geothermal heat pump radiation
Technical field:
The present invention relates to a kind of air-conditioning system, relate in particular to the terminal central air conditioner system of a kind of geothermal heat pump radiation, belong to the refrigeration and air-conditioning technical field.
Background technology:
Along with the raising of living standards of the people, air-conditioning has become the indispensable consumer goods of comfortableness building.The configuration mode of existing comfortableness building air-conditioning mainly contains three kinds: the one, split air conditioner and window machine are installed, adopt the direct sweat cooling of freon, unit air-conditioning area is little, split air conditioner does not have new wind, the comfortableness and the health of air conditioning area are poor, off-premises station need be installed in the outdoor ventilation place, and the installation, maintenance difficulty influences architectural appearance; The 2nd, the residential central air-system is installed, i.e. wind cooling cold and hot water unit, the condenser of main frame adopts air-cooled, and bulky and main frame operational efficiency is subjected to atmospheric environment temperature effect bigger, thereby takies valuable construction area and power consumption is bigger; The 3rd, central air-conditioning system is installed, need concentrated machine room, one-time investment is big, operating cost height, waste energy, estate management difficulty.These existing air-conditioning systems exist two subject matters generally: the one, and the air-conditioning system power consumption is more, and the condensation heat of air-conditioning system directly enters atmosphere, therefore brings a series of energy problem and environmental problem, is unfavorable for the sustainable development of society; The 2nd, long-term work and live in people in the air conditioner surroundings, because fresh air is few, indoor air quality is poor, to healthy generation harmful effect.Therefore, the air-conditioning system of " energy-conservation, healthy, comfortable, the environmental protection " on the brand-new meaning is the target that whole air conditioner industry is pursued.
Summary of the invention:
The objective of the invention is provides a kind of rational in infrastructure, novel in order to overcome above-mentioned the deficiencies in the prior art, and operation is quiet, energy-conservation, comfortable, environmental protection, health, economical and efficient is easy to install, manage, the terminal brand-new wind central air conditioner system of geothermal heat pump radiation easy to use.
For achieving the above object, the present invention can reach by following measure: the terminal central air conditioner system of a kind of geothermal heat pump radiation comprises soil heat exchange fluid systemic circulatory system, refrigerant-cycle systems, the air conditioner water circulatory system, the secondary air conditioner water circulatory system, VMC and an exhaust system.Soil heat exchange fluid systemic circulatory system is made up of ground heat exchanger, liquid pump, plate type heat exchanger and pipeline; Refrigerant-cycle systems is made up of compressor, four-way change-over valve, water refrigerant heat exchanger, two-way device for drying and filtering, bidirectional throttle expansion gear, gas-liquid separator and pipeline; One time the air conditioner water circulatory system is made up of water pump, triple valve, surface processor, water water-to-water heat exchanger, water refrigerant heat exchanger and pipeline; The secondary air conditioner water circulatory system is made up of water pump, radiation air-conditioner end, water water-to-water heat exchanger and pipeline; VMC is made up of fresh wind port, air cleaner, surface processor, humidifier, air heat exchanger, new blower fan, air inlet and air channel; Exhaust system is made up of air outlet, air heat exchanger, exhaust blower, exhaust outlet and air channel.
Its operation principle is: in summer, the present invention is by radiation air-conditioner end draw heat from air conditioning area, by the secondary air-conditioner water system with in transfer of heat to the time air-conditioner water system, air-conditioner water system with this heat and the transfer of heat from new wind, drawn to the refrigerant-cycle systems that is in the refrigeration work pattern, heat shifts by refrigerant-cycle systems, spill in the soil by soil heat exchange fluid systemic circulatory system, VMC is supplied with the outdoor fresh air of air conditioning area through filtration and cool-down dehumidification, exhaust system is discharged indoor foul atmosphere, air heat exchanger can allow new wind reclaim cold in the air draft, play energy-saving effect, thereby reached the purpose of adjusting summer air-conditioning zone humiture and air quality.In the winter time, the present invention is by soil heat exchange fluid systemic circulatory system and be in the refrigerant-cycle systems that heats mode of operation absorb heat from soil, heat by refrigerant-cycle systems and once, the secondary air-conditioner water system is transferred to new wind and radiation air-conditioner end, use for new wind and air conditioning area intensification, VMC is supplied with the outdoor fresh air of air conditioning area through filtration and heating and moistening, exhaust system is discharged indoor foul atmosphere, thereby has reached the purpose of adjusting winter air-conditioning zone humiture and air quality.At transition season, the present invention supplies with the outdoor fresh air of air conditioning area through filtering by VMC, discharges indoor foul atmosphere by exhaust system, thereby has reached the purpose of adjusting transition season air conditioning area air quality.The radiation air-conditioner end that the present invention said can be that furred ceiling is installed, and also can be that install on the floor.
Air-conditioning system of the present invention has the overall merit of energy-saving and environmental protection, health, existing air-conditioning equipment such as comfortable, has improved the thermal comfort level of air conditioning area, and sufficient fresh air supply has guaranteed enough fresh airs.Utilize the terminal and inferior geothermal energy resources of radiation air-conditioner, improved the efficient of air-conditioning unit, the used heat of air conditioning area enters underground, does not have environmental thermal pollution.The present invention is applicable to the building under different regions, the various climate type, is particularly useful for villa class building.
Description of drawings:
Accompanying drawing 1 is a system architecture schematic diagram of the present invention.
Mark is represented among the figure: compressor 1, four-way change-over valve 2, triple valve 3, surface processor 4, humidifier 5, water water-to-water heat exchanger 6, water pump 7, water refrigerant heat exchanger 8, bidirectional throttle expansion gear 9, two-way device for drying and filtering 10, plate type heat exchanger 11, gas-liquid separator 12, ground heat exchanger 13, liquid pump 14, water pump 15, radiation air-conditioner end 16, air inlet 17, new blower fan 18, air outlet 19, air heat exchanger 20, exhaust blower 21, air cleaner 22, exhaust outlet 23, fresh wind port 24.
The specific embodiment:
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
The terminal central air conditioner system structure of geothermal heat pump radiation of the present invention comprises soil heat exchange fluid systemic circulatory system, refrigerant-cycle systems, the air conditioner water circulatory system, the secondary air conditioner water circulatory system, VMC and an exhaust system as shown in Figure 1.The syndeton of soil heat exchange fluid systemic circulatory system is: the outlet of ground heat exchanger 13 links to each other by the liquid-inlet of pipeline with plate type heat exchanger 11, the liquid outlet of plate type heat exchanger 11 links to each other by the import of pipeline with liquid pump 14, and the outlet of liquid pump 14 links to each other by the import of pipeline with ground heat exchanger 13; The syndeton of refrigerant-cycle systems is: the outlet of compressor 1 links to each other with an import of four-way change-over valve 2 by pipeline, an outlet of four-way change-over valve 2 links to each other by the refrigerant inlet of pipeline with plate type heat exchanger 11, the refrigerant outlet of plate type heat exchanger 11 links to each other by the import of pipeline with two-way device for drying and filtering 10, the outlet of two-way device for drying and filtering 10 links to each other by the import of pipeline with bidirectional throttle expansion gear 9, the outlet of bidirectional throttle expansion gear 9 links to each other by the refrigerant inlet of pipeline with water refrigerant heat exchanger 8, the refrigerant outlet of water refrigerant heat exchanger 8 links to each other with another import of four-way change-over valve 2 by pipeline, another outlet of four-way change-over valve 2 links to each other by the import of pipeline with gas-liquid separator 12, and the outlet of gas-liquid separator 12 links to each other by the import of pipeline with compressor 1; The syndeton of an air conditioner water circulatory system is: the outlet of water pump 7 links to each other by the import of pipeline with triple valve 3, an outlet of triple valve 3 links to each other by the water inlet of pipeline with surface processor 4, another outlet links to each other by the water out of pipeline with surface processor 4, the water out of surface processor 4 links to each other by the import of pipeline with water water-to-water heat exchanger 6, also link to each other simultaneously with the outlet of triple valve, the outlet of water water-to-water heat exchanger 6 links to each other by the water inlet of pipeline with water refrigerant heat exchanger 8, and the water out of water refrigerant heat exchanger 8 links to each other by the import of pipeline with water pump 7; The syndeton of the secondary air conditioner water circulatory system is: the outlet of water water-to-water heat exchanger 6 links to each other by the import of pipeline with water pump 15, the outlet of water pump 15 links to each other by the import of pipeline with radiation air-conditioner end 16, and the outlet of radiation air-conditioner end 16 links to each other by the import of pipeline with water water-to-water heat exchanger 6; The syndeton of VMC is: atmosphere communicates with the import of fresh wind port 24, the outlet of fresh wind port 24 links to each other by the import of air channel with air cleaner 22, the outlet of air cleaner 22 links to each other by the air intlet of air channel with surface processor 4, the air outlet slit of surface processor 4 links to each other by the import of air channel with humidifier 5, the outlet of humidifier 5 links to each other by the fresh inlet of air channel with air heat exchanger 20, the new wind outlet of air heat exchanger 20 links to each other by the import of air channel with new blower fan 18, the outlet of new blower fan 18 links to each other by the import of air channel with air inlet 17, and the outlet of air inlet 17 communicates with air conditioning area; The exhaust system syndeton is: air conditioning area communicates with the import of air outlet 19, the outlet of air outlet 19 links to each other with the air draft import of air heat exchanger 20 by the air channel, the wind exhausting outlet of air heat exchanger 20 links to each other with the import of exhaust blower 21, the outlet of exhaust blower 21 links to each other by the import of air channel with exhaust outlet 23, and the outlet of exhaust outlet 23 communicates with atmosphere.The course of work of the present invention is: when air conditioning area when have refrigeration duty summer, its latent heat load and indoor foul atmosphere are eliminated by new wind and air draft, sensible heat load is eliminated by radiation air-conditioner is terminal.This moment, refrigerant-cycle systems was in the refrigeration work pattern, and humidifier 5 is not worked, and the ab of triple valve 3 is open-minded, and ac closes.Refrigerant-cycle systems is made up of compressor 1, four-way change-over valve 2, plate type heat exchanger 11, two-way device for drying and filtering 10, bidirectional throttle expansion gear 9, water refrigerant heat exchanger 8, gas-liquid separator 12, this moment, plate type heat exchanger 11 was condensers of refrigerant-cycle systems, and water refrigerant heat exchanger 8 is evaporimeters of refrigerant-cycle systems.Outdoor fresh air is introduced from fresh wind port 24 by new blower fan 18, through air cleaner 22, remove airborne grit, air cooling-down dehydrating unit-surface processor 4 cooling and dehumidifyings of flowing through again, heat is released into air-conditioner water system after, flow through humidifier 5, by the waste heat in air draft heating, temperature is near the temperature of air conditioning area in air heat exchanger 20, the new blower fan 18 of flowing through again, by air inlet 17, be sent to air conditioning area.Dirt in the air conditioning area contains humid air, flows out through air outlet 19, and air draft flows into air heat exchanger 20, and wherein heat is discharged to behind the new wind, by exhaust blower 21, enters atmosphere through exhaust outlet 23.Sensible heat load in the air conditioning area is absorbed by the secondary air conditioner water in the radiation air-conditioner end 16, the air-conditioning water temperature of advancing the radiation air-conditioner end is higher than 1-2 ℃ of the air dew point temperature of air conditioning area, the supply water temperature scope is 16-20 ℃, the secondary air conditioner water is driven by water pump 15, when flowing through water water-to-water heat exchanger 6, secondary air conditioner water cooling gives off heat in air-conditioner water system, flows back to the terminal heat absorption of radiation air-conditioner periodic duty again.Water pump 7 drives an air conditioner water that flows out and flows in the surface processor 4 through the ab of triple valve 3 path from water refrigerant heat exchanger 8, the heat that absorbs in the new wind of VMC heats up, flow into again in the water water-to-water heat exchanger 6, the heat of the air conditioning area of coming is shifted in absorption by the secondary air-conditioner water system, heat up once more, flow into cooling in the water refrigerant heat exchanger 8 of making the refrigerant-cycle systems evaporimeter then, so periodic duty, the water refrigerant heat exchanger 8 of making evaporimeter absorbs heat from an air conditioner water, through the circulation of refrigerant-cycle systems refrigeration work the plate type heat exchanger 11 of all heats through making condenser is transferred in the liquid of soil heat exchange fluid systemic circulatory system, this liquid drives circulation through liquid pump 14, through ground heat exchanger 13, heat drained in the soil lower the temperature, flow back to plate type heat exchanger 11 ramp cycle work again.Like this, the refrigeration duty in air conditioning area and the new wind just spills in the soil by native system continuously, and new wind constantly is sent to air conditioning area, thereby keeps a home from home of air conditioning area.
When air conditioning area needed to heat in the winter time, refrigerant-cycle systems was in and heated mode of operation this moment, humidifier 5 work, and the ac of triple valve 3 is open-minded, and ab closes.By the refrigerant-cycle systems that compressor 1, four-way change-over valve 2, plate type heat exchanger 11, two-way device for drying and filtering 10, bidirectional throttle expansion gear 9, water refrigerant heat exchanger 8, gas-liquid separator 12 are formed, it is well-known that it heats operation principle, and this does not give unnecessary details.This moment, plate type heat exchanger 11 was evaporimeters of refrigerant-cycle systems, and water refrigerant heat exchanger 8 is condensers of refrigerant-cycle systems.Outdoor fresh air is introduced from fresh wind port 24 by new blower fan 18, through air cleaner 22, remove airborne grit, flow through surface processor 4 again, flow into humidification in the humidifier 5, when flowing through air heat exchanger 20, by the waste heat in air draft heating, temperature is near the temperature of air conditioning area, the new blower fan 18 of flowing through again, by air inlet 17, be sent to air conditioning area.Foul atmosphere in the air conditioning area flows out through air outlet 19, and air draft flows into air heat exchanger 20, and wherein heat is discharged to behind the new wind, by exhaust blower 21, through exhaust outlet 23, enters atmosphere.Ground heat exchanger 13 draw heat from soil is transferred in the liquid of soil heat exchange fluid systemic circulatory system, liquid drives the plate type heat exchanger 11 heat releases cooling of flowing through as the refrigerant-cycle systems evaporimeter through liquid pump 14, transfer of heat is gone into refrigerant-cycle systems, liquid flows back to ground heat exchanger 13 again, heat absorption heats up from soil, so periodic duty.Be in the refrigerant-cycle systems that heats circulating working mode, to move past next heat by doing the water refrigerant heat exchanger 8 of condenser from the soil transfer, in the water with transfer of heat to time air-conditioner water system, drive through water pump 7, the ac path of triple valve 3 of flowing through enters in the water water-to-water heat exchanger 6, after heat is released in the secondary air-conditioner water system cooling, flows into again in the water refrigerant heat exchanger 8 and heat up, so periodic duty.The secondary air conditioner water that heat absorption heats up from water water-to-water heat exchanger 6, temperature range is 30-40 ℃, drives through water pump 15, flow in the radiation air-conditioner end 16, heat is entered air conditioning area, the air conditioner water water temperature reduces, return water water-to-water heat exchanger 6 intensification of absorbing heat again, so periodic duty.Like this, heat in the soil and new wind are just sent into air conditioning area by the present invention continuously, thereby have kept a home from home of air conditioning area.
When air conditioning area when transition season need ventilate, refrigerant-cycle systems is not worked, all water pumps are not worked.Outdoor fresh air is introduced from fresh wind port 24 by new blower fan 18, through air cleaner 22, removes airborne grit, flow through surface processor 4, after entering humidifier 5, look the humidity size of air, humidifier 5 can be worked to new wind humidification, can not work yet, the air air heat exchanger 20 of flowing through again, carry out heat exchange with air draft therein after, the new blower fan 18 of flowing through, by air inlet 17, be sent to air conditioning area.Foul atmosphere in the air conditioning area flows out through air outlet 19, and air draft is after air heat exchanger 20 and new wind-heat exchange, and the exhaust blower 21 of flowing through by exhaust outlet 23, enters atmosphere.Like this, ozone just uses for air conditioning area continuously, has guaranteed the air quality of air conditioning area.
The present invention has been owing to adopted said structure and technical measures, has novelly, and operation is quiet, energy-conservation, comfortable, environmental protection, health, economical and efficient, be easy to install, management, advantage such as easy to use has overcome many deficiencies of existing air-conditioning technical, comprehensive development the overall merit of existing air-conditioning technical, be the novel central air conditioner system of " energy-conservation, healthy, comfortable, environmental protection " on a kind of brand-new meaning.

Claims (2)

1. the terminal central air conditioner system of a geothermal heat pump radiation, it is characterized in that comprising soil heat exchange fluid systemic circulatory system, refrigerant-cycle systems, an air conditioner water circulatory system, the secondary air conditioner water circulatory system, VMC and exhaust system, soil heat exchange fluid systemic circulatory system is by ground heat exchanger (13), liquid pump (14), plate type heat exchanger (11) and pipeline are formed, refrigerant-cycle systems is by compressor (1), four-way change-over valve (2), water refrigerant heat exchanger (8), two-way device for drying and filtering (10), bidirectional throttle expansion gear (9), gas-liquid separator (12) and pipeline are formed, an air conditioner water circulatory system is by first water pump (7), triple valve (3), surface processor (4), water water-to-water heat exchanger (6), water refrigerant heat exchanger (8) and pipeline are formed, the secondary air conditioner water circulatory system is by second water pump (15), radiation air-conditioner end (16), water water-to-water heat exchanger (6) and pipeline are formed, VMC is by fresh wind port (24), air cleaner (22), surface processor (4), humidifier (5), air heat exchanger (20), new blower fan (18), air inlet (17) and air channel are formed, exhaust system is by air outlet (19), air heat exchanger (20), exhaust blower (21), exhaust outlet (23) and air channel are formed, in summer, water refrigerant heat exchanger (8) is as evaporimeter, and plate type heat exchanger (11) is as condenser; In the winter time, plate type heat exchanger (11) is as evaporimeter, and water refrigerant heat exchanger (8) is as condenser; The outlet of ground heat exchanger (13) links to each other with the liquid-inlet of plate type heat exchanger (11), the liquid outlet of plate type heat exchanger (11) links to each other with the import of liquid pump (14), the outlet of liquid pump (14) links to each other with the import of ground heat exchanger (13), the outlet of compressor (1) links to each other through the refrigerant inlet of four-way change-over valve (2) with plate type heat exchanger (11), the refrigerant outlet of plate type heat exchanger (11) links to each other with the import of two-way device for drying and filtering (10), the outlet of two-way device for drying and filtering (10) links to each other with the import of bidirectional throttle expansion gear (9), the outlet of bidirectional throttle expansion gear (9) links to each other with the refrigerant inlet of water refrigerant heat exchanger (8), the refrigerant outlet of water refrigerant heat exchanger (8) links to each other through the import of four-way change-over valve (2) with gas-liquid separator (12), the outlet of gas-liquid separator (12) links to each other with the import of compressor (1), first water pump (7) links to each other with surface processor 4 through triple valve (3), the water out of surface processor (4) is through water water-to-water heat exchanger (6), water refrigerant heat exchanger (8) links to each other with the import of first water pump (7), the outlet of water water-to-water heat exchanger (6) links to each other with the import of second water pump (15), the outlet of second water pump (15) links to each other with the import of radiation air-conditioner end (16), the outlet of radiation air-conditioner end (16) links to each other with the import of water water-to-water heat exchanger (6), fresh wind port (24) links to each other with the import of air cleaner (22), the outlet of air cleaner (22) links to each other with the air intlet of surface processor (4), the air outlet slit of surface processor (4) links to each other with the import of humidifier (5), the outlet of humidifier (5) is through air heat exchanger (20), new blower fan (18) communicates with the air inlet (17) of air conditioning area, and the air outlet of air conditioning area (19) is through air heat exchanger (20), exhaust blower (21) links to each other with exhaust outlet (23).
2, the terminal central air conditioner system of geothermal heat pump radiation as claimed in claim 1, be 16-20 ℃ inflow temperature summer that it is characterized in that said radiation air-conditioner end (16), than the high 1-2 of air dew point temperature ℃ of air conditioning area, winter, inflow temperature was 30-40 ℃.
CNB021577307A 2002-12-25 2002-12-25 Central air conditioning system at terminal of geothermal heat pump radiation CN1160536C (en)

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CN101624853B (en) * 2008-07-10 2011-06-01 严继光 Radiation and heat exchange ceiling board and air conditioner comprising same
CN102213465A (en) * 2010-04-07 2011-10-12 北京水木泽清能源科技有限公司 Temperature-humidity separately-controlled central air conditioner of water source heat pump for ship
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CN102095233B (en) * 2011-01-18 2013-01-09 东南大学 Air source heat pump device for simultaneously producing water and air
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CN102679484B (en) * 2012-05-31 2014-07-09 东南大学 Water loop heat pump air conditioning system with geothermal energy as single auxiliary cold and heat source
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