CN101603716B - Ground source heat pump air-conditioning system and fresh air processing method thereof - Google Patents
Ground source heat pump air-conditioning system and fresh air processing method thereof Download PDFInfo
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- CN101603716B CN101603716B CN 200910304104 CN200910304104A CN101603716B CN 101603716 B CN101603716 B CN 101603716B CN 200910304104 CN200910304104 CN 200910304104 CN 200910304104 A CN200910304104 A CN 200910304104A CN 101603716 B CN101603716 B CN 101603716B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y02B10/40—Geothermal heat-pumps
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Abstract
The invention discloses a ground source heat pump air-conditioning system and a fresh air processing method thereof. The ground source heat pump air-conditioning system comprises a ground source heat pump unit, a ground source heat exchanger, a fresh air unit, a radiant heating ground coil and a cold radiant ceiling device. One outlet end of the ground source heat exchanger is connected to the cold radiant ceiling device controlled by a valve opened in summer and closed in winter, while the other outlet end is connected to a first heat calorie exchanging device. Both the outlet ends are connected to an outer heat exchanger of the ground source heat pump unit. An outlet of the outer heat exchanger is connected to an inlet of the ground source heat exchanger through a first circulating pump. An outlet end of the inner heat exchanger of the ground source heat pump unit is divided into two paths, wherein one path is connected to the radiant heating ground coil controlled by a valve opened in summer and closed in winter, and the other path is connected to a second heat calorie exchanging device. Both the paths are connected to an inner heat exchanger of the ground source heat pump unit. The ground source heat pump air-conditioning system has obvious energy-saving effect and stable and reliable operation of the system, is sanitary, does not pollute the underground water and has wide application prospect in the regions which are rich in underground water and are cold in winter and hot in summer.
Description
Technical field
The present invention relates to kind of an air conditioner refrigerating technical field.
Background technology
In the prior art, the radiation air-conditioner form that adds " dedicated outdoor air system " with " radiation end equipment " more and more receives the concern of industry.Its radiation end equipment can adopt radiation furred ceiling or radiation ground pipe laying, the radiation end can be taken away indoor sensible heat load, its dedicated outdoor air system can be taken away the total heat load and the indoor latent heat load of new wind, makes indoor environment as snug as a bug in a rug for air-conditioned room provides cold/hot fresh air.The cold/hot water that the new blower fan group of this class radiation air-conditioner all adopts source pump to produce is handled new wind, because the total heat load of outdoor new wind is born by source pump, when indoor/outdoor temperature-difference was big, the load of source pump caused energy consumption higher greatly.
Along with global energy crisis, environmental problem with make full use of under the main trend of sustainable development of regenerative resource, earth source heat pump cold and heat supply technology is risen gradually and is paid attention to greatly and develop.Earth-source hot-pump system be a kind of earth surface geothermal using resource of utilizing as Cooling and Heat Source, carry out the heating air-conditioner system of power conversion.Earth-source hot-pump system absorbs heat from the geothermal using resource or to its heat extraction, the geothermal using source resource is in solar energy, and it does not have exhaustion forever, is a kind of regenerative resource.The temperature of ground energy or shallow surface geothermal energy resources is relatively stable throughout the year, and winter, summer was lower than environment temperature than ambient air temperature height, was best source heat pump heat and cold source of air conditioning.Ground can have the more constant characteristic of temperature makes that the earth source heat pump unit operation is more reliable and more stable, has also guaranteed the high efficiency and the economy of system.
Existing underground water earth source heat pump all is to utilize underground water directly to cool off the condenser of earth source heat pump unit or the evaporimeter of source source pump heatedly, though earth source heat pump unit refrigerating efficiency or heating efficiency all improve a lot than net for air-source heat pump units or other handpiece Water Chilling Units (as adopting the cooling tower type of cooling), yet, with regard to the underground water earth source heat pump of prior art, stored hot cold in sky of underground water or heat energy are not directly used in outdoor new wind of cooling down high-temperature or the outer wind newly of heating low temperature chamber, so just cause the phreatic cold/heat-energy losses that can be directly used in cooling or heat supply originally.
Summary of the invention
The purpose of this invention is to provide higher geothermal-energy heat pump radiation air-conditioner system and the fresh air processing method thereof of Energy Efficiency Ratio that a kind of ground can utilize.
For achieving the above object, geothermal-energy heat pump radiation air-conditioner of the present invention system adopts following technical scheme: a kind of geothermal-energy heat pump radiation air-conditioner system, comprise the earth source heat pump unit, be the ground source heat exchanger of cold/heat source, new blower fan group, radiant heating ground coil pipe, cold emission suspended ceiling device with underground water, successively be provided with first heat-mass exchange equipment, second heat-mass exchange equipment, new wind blower fan in the air channel of described new blower fan group on air supply direction, described earth source heat pump unit has inside and outside heat exchanger; The port of export of ground source heat exchanger is told two-way, one the road inserts the cold emission suspended ceiling device that closes valve control by Xia Kaidong, first heat-mass exchange equipment is inserted on another road, the outlet of the cold emission suspended ceiling device and first heat-mass exchange equipment all is connected to the external heat exchanger of earth source heat pump unit, and the external heat exchanger outlet takes back the inlet of ground source heat exchanger by first circulating pump; The port of export of the interior heat exchanger of earth source heat pump unit is told two-way, one the road inserts the radiant heating ground coil pipe that closes valve control by Dong Kaixia, second heat-mass exchange equipment is inserted on another road, and the radiant heating ground coil pipe and second heat-mass exchange equipment take back the interior heat exchanger of earth source heat pump unit by second circulating pump then.
The EGR that described cold emission suspended ceiling device is connected into by pipeline and the 3rd circulating pump by blending bin, cold emission ceiling board, the port of export of described ground source heat exchanger is connected to the entrance point of blending bin, the port of export of cold emission ceiling board is divided into two-way, one the tunnel connects the entrance point of blending bin, and the entrance point of valve ground connection source source pump external heat exchanger is closed on another road by Xia Kaidong.
Be provided with humidifier between second heat-mass exchange equipment of described new blower fan group and the new wind blower fan.
Described first heat-mass exchange equipment and second heat-mass exchange equipment are direct contact type heat-mass exchange equipment or mediate contact formula heat-mass exchange equipment.
The technical scheme of the fresh air processing method of geothermal-energy heat pump radiation air-conditioner of the present invention system is, in new blower fan group air channel set gradually by underground water provide cold/heat source first heat-mass exchange equipment, provide second heat-mass exchange equipment of cold/heat source by the earth source heat pump unit, new wind is handled after the blower fan pressurization is sent in the air-conditioned room successively through first and second heat-mass exchange equipment.
The present invention utilizes between first medium and the underground water cold/heat energy that indirect heat exchange obtains at first to outdoor new wind cooling or heat supply, and then be used to cool off or the external heat exchanger of source source pump heatedly, under the cooling condition, with first medium after the underground water heat exchange still be the low-temperature receiver of cold emission furred ceiling, stored day hot cold is directly used in bears outdoor new wind all load and most of room sensible heat load, the earth source heat pump unit only need be born indoor humidity load, thereby saves the power consumption of earth source heat pump unit refrigerating capacity and compressor greatly; Under the heat supply operating mode, the stored natural heat of underground water is directly used in bears outdoor new wind part sensible heat load, has also saved the heating capacity of earth source heat pump unit and the power consumption of compressor.The present invention has the advantage of utilizing the stored cold/heat energy of low-grade underground water, and is energy-efficient, system's stable and reliable operation, and sanitation and hygiene, underground water is not contaminated, and the cold in winter and hot in summer area abundant at groundwater resources has a extensive future.
Description of drawings
Fig. 1 is a kind of geothermal-energy heat pump radiation air-conditioner systematic schematic diagram provided by the invention.
Fig. 2 is that the new wind processing procedure of a kind of geothermal-energy heat pump radiation air-conditioner system's cooling operating mode provided by the invention is represented (h-d figure) on psychrometric chart.
Fig. 3 is that the new wind processing procedure of a kind of geothermal-energy heat pump radiation air-conditioner system's heat supply operating mode provided by the invention is represented (h-d figure) on psychrometric chart.
Among Fig. 1,1, source heat exchanger, 2, first heat-mass exchange equipment, 3, blending bin, the 4, the 3rd circulating pump, 5, the cold emission furred ceiling, 6, Xia Kaidong closes valve, and 7, earth source heat pump unit external heat exchanger, 8, the earth source heat pump unit, 9, first circulating pump, 10, heat exchanger in the earth source heat pump unit, 11, seam humidifier, 12, second heat-mass exchange equipment, 13, second circulating pump, 14, Dong Kaixia closes valve, 15, radiant heating ground coil pipe.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is elaborated.
As shown in Figure 1, be the embodiment of geothermal-energy heat pump radiation air-conditioner provided by the invention system, include ground source heat exchanger 1, first heat-mass exchange equipment 2, blending bin 3, the 3rd circulating pump 4, cold emission ceiling board 5, the external heat exchanger 7 of earth source heat pump unit 8, heat exchanger 10 in the earth source heat pump unit 8, first circulating pump 9, seam humidifier 11, second heat-mass exchange equipment 12, second circulating pump 13, radiant heating ground coil pipe 15 and new wind blower fan 16, the first heat-mass exchange equipment 2, second heat-mass exchange equipment 12, humidifier 11, new wind blower fan 16 connects to form the fresh air processor group successively; Described ground source heat exchanger 1 is provided with a pair of advancing for the circulating groundwater turnover, outlet pipe, the outlet of first medium of ground source heat exchanger 1 is divided into two, first medium inlet that is connected to first heat-mass exchange equipment 2, another is connected to blending bin 3, the outlet of blending bin 3 is connected with the inlet of the 3rd circulating pump 4, the outlet of the 3rd circulating pump 4 is connected to first medium inlet of cold emission furred ceiling 5, first media outlet of cold emission furred ceiling 5 is divided into two, one is connected to blending bin 3, another is connected to the inlet that Xia Kaidong closes valve 6, after converging, first media outlet that Xia Kaidong closes the outlet of valve 6 and first heat-mass exchange equipment 2 is connected to the inlet of the external heat exchanger 7 of earth source heat pump unit 8, the outlet of external heat exchanger 7 is connected with the inlet of first circulating pump 9, and the outlet of first circulating pump 9 is connected with first medium inlet of ground source heat exchanger 1; Second media outlet of the interior heat exchanger 10 of earth source heat pump unit 8 is divided into two, one is closed valve 14 inlets with Dong Kaixia and is connected, the outlet that Dong Kaixia closes valve 14 is connected with the inlet of second medium of radiant heating ground coil pipe 15, another inlet with second medium of second heat-mass exchange equipment 12 is connected, be connected to the inlet of second circulating pump 13 after the outlet of second medium of second media outlet of second heat-mass exchange equipment 12 and radiant heating ground coil pipe 15 converges, the outlet of second circulating pump 13 is connected with second medium inlet of the interior heat exchanger 10 of earth source heat pump unit 8.First heat-mass exchange equipment 2 and second heat-mass exchange equipment 12 are direct contact type heat-mass exchange equipment such as spray chamber or mediate contact formula heat-mass exchange equipment such as surface cooler.
Just narrate the course of work of above-mentioned geothermal-energy heat pump radiation air-conditioner system under heat supply and two kinds of operating modes of cooling respectively below.
Under the cooling operating mode, Xia Kaidong closes valve 6 unlatchings, 4 work of the 3rd circulating pump, and Dong Kaixia closes valve 14 and closes; Provide low-temperature receiver by underground water, the outlet of ground source heat exchanger 1 is first medium of lower temperature, first medium of this lower temperature is divided into two, one enters and sends into cold emission furred ceiling 5 through the 3rd circulating pump 4 again after blending bin 3 and a part are mixed from first medium of cold emission furred ceiling 5 and carry out sensible heat with room air and exchange to bear indoor most of sensible heat load, another enters first heat-mass exchange equipment 2 and carries out the caloic exchange with new wind, the external heat exchanger 7 that enters earth source heat pump unit 8 after first medium mixing from cold emission furred ceiling 5 of first medium that temperature raises after caloic exchanges and another part continues to absorb heats, external heat exchanger 7 at earth source heat pump unit 8 exports first medium that becomes higher temperature, and first medium of higher temperature becomes first medium of lower temperature again after first circulating pump 9 is delivered to ground source heat exchanger 1 and underground water heat exchange; Source source pump work side by side, heat exchanger exit is second medium of lower temperature in the earth source heat pump, second medium of low temperature carries out the caloic exchange with new wind in second heat-mass exchange equipment 12, new wind is further cooled dehumidification, second medium temperature after second heat-mass exchange equipment 12 raises, and is cooled to second medium of low temperature then after second circulating pump 13 enters interior heat exchanger 10 heat exchange of earth source heat pump unit 8 again.
Under the heat supply operating mode, the 3rd circulating pump 4 quits work, Xia Kaidong closes valve 6 and closes, and Dong Kaixia closes valve 14 and opens; Provide thermal source by underground water, the outlet of ground source heat exchanger 1 is first medium of higher temperature, first medium of this higher temperature enters the external heat exchanger 7 that first heat-mass exchange equipment 2 and new wind carries out entering after the caloic exchange earth source heat pump unit 8 and continues to emit heat, delivers to first medium that becomes higher temperature after ground source heat exchanger 1 carries out heat exchange with underground water again through first circulating pump 9; Source source pump work side by side, interior heat exchanger 10 outlets of earth source heat pump unit 8 are second medium of high temperature, second medium of high temperature is divided into two, one enters second heat-mass exchange equipment 12 and carries out the caloic exchange with new wind, another enters radiant heating ground coil pipe 15 heating room airs bearing indoor most of sensible heat load, and second medium of second heat-mass exchange equipment, 12 outlets mixes with second medium that radiant heating ground coil pipe 15 exports afterwards by second circulating pump 13 sends second medium that is reheated after interior heat exchanger 10 heat exchange of earth source heat pump unit 8 to high temperature back to.
The fresh air processing method of air-conditioning system of the present invention when work is: under the cooling operating mode, outdoor new wind is after the 2 cooling dehumidifications of first heat-mass exchange equipment, enter the second further cooling dehumidification of heat-mass exchange equipment 12, handle the new wind in back in blower fan is sent into air-conditioned room, first heat-mass exchange equipment 2 is born whole cooling load from outdoor airs and the indoor sensible heat load of part, 2 chilling requirements of first heat-mass exchange equipment are all provided by underground water, second heat-mass exchange equipment 12 is born indoor whole latent heat load and new wind part latent heat load, and 12 chilling requirements of second heat-mass exchange equipment are provided by earth source heat pump unit 8; Under the heat supply operating mode, outdoor new wind is after the first heat-mass exchange equipment wet heating such as 2 grades or humidification heating, enter wet heating or humidification heating such as second heat-mass exchange equipment 12 is further, send into air-conditioned room after entering seam humidifier 11 isothermal humidifications again, first heat-mass exchange equipment 2 is born new wind part sensible heat load, 2 calorific requirements of first heat-mass exchange equipment are provided by underground water, second heat-mass exchange equipment 12 is born new wind part sensible heat load and indoor section sensible heat load, and second heat-mass exchange equipment institute calorific requirement 12 is provided by earth source heat pump unit 8.
Here being mediate contact formula heat-mass exchange equipment with first heat-mass exchange equipment 2 and second heat-mass exchange equipment 12 is example, illustrate that new wind processing procedure is: under the cooling operating mode, outdoor new wind cools off dehumidifications to mechanical dew point (new as shown in Figure 2 wind state point through first heat-mass exchange equipment 2 earlier
OTo state point
L 1 Process), the new wind of cooling after the dehumidification again through second heat-mass exchange equipment (12) cooling dehumidification to the (state point as shown in Figure 2 of the mechanical dew point of low temperature more
L 1 To state point
L 3 Process), handle the new wind in back and send into indoor elimination room part sensible heat load and whole latent heat loads (air condition points as shown in Figure 2 through blower fan
L 3 To state point
RProcess), all the other sensible heat loads of room by cold emission furred ceiling 4 bear (the cold emission furred ceiling is with wet state point M processes that is cooled to such as state point R room airs as shown in Figure 2) thus the room temperature of keeping and moisture stable (room air state point as shown in Figure 2
R); Under the heat supply operating mode, outdoor new wind is earlier through (new as shown in Figure 3 wind state point such as wet heating such as first heat-mass exchange equipment, 2 grades
O 'To state point
O "Process), again through (new as shown in Figure 3 wind state such as wet heating such as second heat-mass exchange equipment, 12 grades
O "Point is to state point
O ' ' 'Process), the new wind after the heating is through humidifier 11 humidifications (state point as shown in Figure 3
O ' ' 'To state point
sProcess), add after the wet process new wind and send into air-conditioned room bearing indoor whole humidity load and part sensible heat load through blower fan 16, all the other indoor sensible heat loads are born by radiant heating ground coil pipe 15 that (radiant heating ground coil pipe is with wet state points that is heated to such as state point R room airs as shown in Figure 3
R ' Process), thus the room temperature of keeping and moisture stable (air condition point as shown in Figure 3
R).
Claims (5)
1. geothermal-energy heat pump radiation air-conditioner system, it is characterized in that: comprise the earth source heat pump unit, be the ground source heat exchanger of cold/heat source, new blower fan group, radiant heating ground coil pipe, cold emission suspended ceiling device with underground water, successively be provided with first heat-mass exchange equipment, second heat-mass exchange equipment, new wind blower fan in the air channel of described new blower fan group on air supply direction, described earth source heat pump unit has inside and outside heat exchanger; The port of export of ground source heat exchanger is told two-way, one the road inserts the cold emission suspended ceiling device that closes valve control by Xia Kaidong, first heat-mass exchange equipment is inserted on another road, the outlet of the cold emission suspended ceiling device and first heat-mass exchange equipment all is connected to the external heat exchanger of earth source heat pump unit, and the external heat exchanger outlet takes back the inlet of ground source heat exchanger by first circulating pump; The port of export of the interior heat exchanger of earth source heat pump unit is told two-way, one the road inserts the radiant heating ground coil pipe that closes valve control by Dong Kaixia, second heat-mass exchange equipment is inserted on another road, and the radiant heating ground coil pipe and second heat-mass exchange equipment take back the interior heat exchanger of earth source heat pump unit by second circulating pump then.
2. geothermal-energy heat pump radiation air-conditioner according to claim 1 system, it is characterized in that: the EGR that described cold emission suspended ceiling device is connected into by pipeline and the 3rd circulating pump by blending bin, cold emission ceiling board, the port of export of described ground source heat exchanger is connected to the entrance point of blending bin, the port of export of cold emission ceiling board is divided into two-way, one the tunnel connects the entrance point of blending bin, and the entrance point of valve ground connection source source pump external heat exchanger is closed on another road by Xia Kaidong.
3. geothermal-energy heat pump radiation air-conditioner according to claim 1 system is characterized in that: be provided with humidifier between second heat-mass exchange equipment of described new blower fan group and the new wind blower fan.
4. according to any described geothermal-energy heat pump radiation air-conditioner system in the claim 1～3, it is characterized in that: described first heat-mass exchange equipment and second heat-mass exchange equipment are direct contact type heat-mass exchange equipment or mediate contact formula heat-mass exchange equipment.
5. the fresh air processing method of geothermal-energy heat pump radiation air-conditioner system, it is characterized in that: in new blower fan group air channel set gradually by underground water provide cold/heat source first heat-mass exchange equipment, provide second heat-mass exchange equipment of cold/heat source by the earth source heat pump unit, new wind is handled after the blower fan pressurization is sent in the air-conditioned room successively through first and second heat-mass exchange equipment; Described first heat-mass exchange equipment is connected with the ground source heat exchanger that is used to obtain the cold/heat source that underground water provides through pipeline; Described earth source heat pump unit has inside and outside heat exchanger; The port of export of ground source heat exchanger is told two-way, one the road inserts the cold emission suspended ceiling device that closes valve control by Xia Kaidong, first heat-mass exchange equipment is inserted on another road, the outlet of the cold emission suspended ceiling device and first heat-mass exchange equipment all is connected to the external heat exchanger of earth source heat pump unit, and the external heat exchanger outlet takes back the inlet of ground source heat exchanger by first circulating pump; The port of export of the interior heat exchanger of earth source heat pump unit is told two-way, one the road inserts the radiant heating ground coil pipe that closes valve control by Dong Kaixia, second heat-mass exchange equipment is inserted on another road, and the radiant heating ground coil pipe and second heat-mass exchange equipment take back the interior heat exchanger of earth source heat pump unit by second circulating pump then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910304104 CN101603716B (en) | 2009-07-07 | 2009-07-07 | Ground source heat pump air-conditioning system and fresh air processing method thereof |
Applications Claiming Priority (1)
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| CN 200910304104 CN101603716B (en) | 2009-07-07 | 2009-07-07 | Ground source heat pump air-conditioning system and fresh air processing method thereof |
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| CN101603716A CN101603716A (en) | 2009-12-16 |
| CN101603716B true CN101603716B (en) | 2011-08-31 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825314B (en) * | 2010-03-30 | 2012-02-08 | 德华科电器科技(安徽)有限公司 | Air circulating system of integrated heat pump |
| CN102840634B (en) * | 2011-06-24 | 2015-09-09 | 杭州三花研究院有限公司 | A kind of air-conditioning system |
| CN105928132A (en) * | 2016-04-12 | 2016-09-07 | 北京方兴拓赢房地产开发有限公司 | Capillary network air-conditioning system and regulating method |
| CN107367000A (en) * | 2017-07-17 | 2017-11-21 | 芜湖泰领信息科技有限公司 | Solar energy VMC |
| CN107525181A (en) * | 2017-09-27 | 2017-12-29 | 清华大学 | A kind of air-conditioning system that load rating processing is carried out using natural energy resources |
| CN107906643B (en) * | 2017-11-14 | 2020-05-05 | 湖南中大经纬地热开发科技有限公司 | Ground source heat energy integrated system |
| CN108224606B (en) * | 2017-12-22 | 2019-10-15 | 江苏科技大学 | A kind of heat pump humidifier and working method |
| CN108895579B (en) * | 2018-05-25 | 2020-05-08 | 江苏盛世机电工程有限公司 | Five-constant ecological air conditioning system and temperature and humidity adjusting method |
| CN109539441B (en) * | 2018-12-26 | 2024-04-26 | 青岛农业大学 | Solution dehumidification air conditioning system based on natural cold source drive and solar energy regeneration |
| CN113915800B (en) * | 2021-09-27 | 2023-03-03 | 河南科技大学 | High-temperature double-source heat pump device |
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