CN103900287A - Heat exchange system in combined operation of solar energy and geothermal energy - Google Patents
Heat exchange system in combined operation of solar energy and geothermal energy Download PDFInfo
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- CN103900287A CN103900287A CN201410136029.2A CN201410136029A CN103900287A CN 103900287 A CN103900287 A CN 103900287A CN 201410136029 A CN201410136029 A CN 201410136029A CN 103900287 A CN103900287 A CN 103900287A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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Abstract
The invention discloses a heat exchange system in combined operation of solar energy and geothermal energy. The heat exchange system comprises a solar heat collector, a buried pipe heat exchanger, a heat pump unit, an absorbing type refrigerating unit, a user end, a plurality of hot water tanks, a plurality of water pumps, a plurality of connection pipes and a plurality of valves, wherein the solar heat collector is communicated with a first hot water tank, the first hot water tank is connected with a second water tank and an auxiliary heater via a second water pump so as to form a loop, the buried pipe heat exchanger is communicated with the heat pump unit, the heat pump unit is connected with the buried pipe heat exchanger and the first hot water tank via a third water pump so as to form a loop, the user end is connected with the heat pump unit and the absorbing type refrigerating unit via a fourth water pump so as to form a loop. The heat exchange system in combined operation of the solar energy and the geothermal energy has the advantages that unbalance problem of soil heat is effectively solved, cooling in summer, heating in winter and supplying of domestic hot water for all year around for buildings are achieved on the basis that the solar energy and the geothermal energy are utilized efficiently, and the heat exchange system is flexible to operate and adjust and diversified in functions.
Description
Technical field
The present invention relates to heating system, the heat-exchange system of especially a kind of solar energy and geothermal energy united operation.
Background technology
Existing solar energy and earth source heat pump combined operation system mostly are and adopt earth-source hot-pump system refrigeration summer, adopt solar heat pump and earth source heat pump combined heat winter.
But, in some areas, for example, at south China, building required refrigeration duty in summer will be much larger than required thermic load in winter, there is separately the soil rough sledding of unbalance (caloric receptivity of pipe laying in annual winter from soil is less than thermal discharge in summer) when applying ground source heat pump refrigeration, and source pump to be all often heating capacity be greater than refrigerating capacity.
In the time of machine group selection, if by refrigeration duty Standard Selection unit in summer, can cause the heating capacity of unit well beyond the thermic load demand of building, if according to thermic load Standard Selection in winter, there will be summer refrigerating capacity inadequate.
Therefore need a kind of new technology to solve the problems referred to above.
Summary of the invention
Goal of the invention: provide the heat-exchange system of a kind of solar energy and geothermal energy united operation, to solve the subproblem of prior art.
Technical scheme: the heat-exchange system of a kind of solar energy and geothermal energy united operation, comprise solar thermal collector, ground heat exchanger, source pump, absorption refrigeration unit, user side, and some boilers, water pump, connecting pipeline and valve,
Described solar thermal collector is communicated with the first boiler, and the first boiler connects and composes closed circuit with the second water tank and auxiliary heater respectively by the second water pump, is provided with valve between loop;
Described ground heat exchanger is communicated with source pump, and described source pump, by the 3rd water pump and ground heat exchanger and the first boiler formation closed circuit, is provided with valve in loop;
User side forms closed circuit by the 4th water pump and source pump, absorption system, is provided with valve in loop.
On pipeline between described solar thermal collector and the first boiler, the first water pump is set, the entrance of described solar thermal collector is connected with the first water delivery side of pump, and the import of the outlet of solar thermal collector and the first water pump is connected with the first boiler.
Described source pump comprises the first condenser and the first evaporimeter; Described absorption refrigeration unit comprises generator, absorber, the second condenser, the second evaporimeter and heat exchanger.
Further, also comprise some water collectors and water knockout drum; Wherein, the import of the second water pump is connected with the first hot water storage tank, and the second water delivery side of pump is connected with the second boiler with import, the auxiliary heater of the first water collector; The import of the first water collector is connected with the outlet of ground heat exchanger, and the outlet of the first water collector is connected with the import of the 3rd water pump; The 3rd water delivery side of pump is connected with the import of the first condenser, the first evaporimeter;
The outlet of the first water knockout drum is connected with the first boiler and ground heat exchanger import, the import of the first water knockout drum is connected with the first condenser and the first evaporator outlet, and the second water collector import is connected with the first evaporator outlet with the second evaporator outlet and the first condenser;
The second water collector outlet is connected with the import of user's end, and the second water knockout drum exports with the second evaporator and the first condenser and the first evaporator and is connected; The second water knockout drum import is connected with the 4th exit of pump.
Described the 4th unit fixed on water pump suction is connected with user side outlet, and the 5th unit fixed on water pump suction is connected with absorber, and the 5th exit of pump is connected with heat exchanger.
In the time that temperature is higher, for example, in summer, a heat part for solar thermal collector is used for providing domestic hot-water, and another part is as the driving heat source of absorption system, when heat is inadequate, open auxiliary heater, ground heat exchanger 2 is as source pump low-temperature receiver running refrigerating operating mode.
In the time that temperature is lower, for example in the winter time, a heat part for solar thermal collector is used for providing domestic hot-water, and another part and ground heat exchanger are jointly as source pump thermal source operation heating condition, and absorption system is stopped.
Beneficial effect: by integrated solar heat utilization technology, solar energy absorption type refrigeration technology and earth source heat pump cold and heat supply technology, the present invention efficiently solves warm area because using separately earth source heat pump to cause Soil Thermal unbalance; And utilize at comprehensive high-efficiency on the basis of solar energy and geothermal energy, realized domestic hot-water is provided building summer cooling, heat supply in winter and the whole year.System operation flexible adjustment of the present invention, functional diversities.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is summer condition structural representation of the present invention.
Fig. 3 is winter condition structural representation of the present invention.
In accompanying drawing: solar thermal collector 1, ground heat exchanger 2, source pump 3, first, second condenser 4-1,4-2, first, second evaporimeter 5-1,5-2, generator 6, absorber 7, absorption refrigeration unit 8, first, second boiler 9-1,9-2, first to the 5th water pump 10-1 ~ 10-5, auxiliary heater 11, first, second water collector 12-1,12-2, first, second water knockout drum 13-1,13-2, user side 14, some valve 15-1 ~ 15-9, heat exchanger 16, condensing water inlet 17-1,17-2.
Detailed description of the invention
In conjunction with Fig. 1, structure of the present invention and operation principle are described.Solar energy of the present invention and geothermal energy united operational system mainly comprise solar thermal collector, hot water storage tank, domestic hot-water's case, ground heat exchanger, source pump, absorption refrigeration unit, user side, water pump, water knockout drum and water collector.
Three systems of said apparatus composition: the first boiler 9-1 connects and composes closed circuit by the second water pump 10-2 and the second water tank 9-2 and auxiliary heater 11, are provided with the 8th valve 15-8 between loop and the 9th valve 15-9 realizes switch and (or) switching; Source pump 3, by the 3rd water pump 10-3 and ground heat exchanger 2 and the first boiler 9-1 formation closed circuit, is provided with the first valve 15-1 and realizes switch in loop; User's end 14 forms closed circuit by the 4th water pump 10-4 and source pump 3 and absorption system 8, is provided with the second valve 15-2 and realizes switch in loop.
Particularly, source pump 3 comprises the first condenser 4-1 and the first evaporimeter 5-1.Absorption refrigeration unit 8 comprises generator 6, absorber 7, the second condenser 4-2, the second evaporimeter 5-2 and heat exchanger 16.
Solar thermal collector 1 entrance is connected with the first water pump 10-1 outlet, solar thermal collector 1 exports and the first water pump 10-1 import is connected with the first boiler 9-1, the second water pump 10-2 import is connected with the first boiler 9-1, the second water pump 10-2 outlet is connected with the second water tank 9-2 with the first water collector 12-1 import and auxiliary heater 11, the first water collector 12-1 import is connected with the second water pump 10-2 and ground heat exchanger 2 outlets, the first water collector 12-1 outlet is connected with the 3rd water pump 10-3 import, the 3rd water pump 10-3 outlet is connected with the first condenser 4-1 and the first evaporimeter 5-1 import, the first water knockout drum 13-1 outlet is connected with the first boiler 9-1 and ground heat exchanger 2 imports, the first water knockout drum 13-1 import is connected with the first condenser 4-1 and the first evaporimeter 5-1 outlet, the second water collector 12-2 import is connected with the first evaporimeter 5-1 outlet with the second evaporimeter 5-2 outlet and the first condenser 4-1, the second water collector 12-2 outlet is connected with user side 14 imports, the second water knockout drum 13-2 outlet and the second evaporimeter 5-2 import and the first condenser 4-1 and the first evaporimeter 5-1 import are connected, the second water knockout drum 13-2 import is connected with the 4th water pump 10-4 outlet, the 4th water pump 10-4 import is connected with user side 14 outlets, the 5th water pump 10-5 import is connected with absorber 7, the 5th water pump 10-5 outlet is connected with heat exchanger 16.
As shown in Figure 2, in summer, systemic-function comprises solar energy heating domestic hot-water, Driven by Solar Energy absorption system and earth source heat pump refrigeration air-conditioner, comprises solar energy heating circulation, domestic hot-water's Heating Cyclic, drives absorption system circulation and earth source heat pump kind of refrigeration cycle.
Fine day daytime, the first water pump 10-1 opens, and carries out solar energy heating circulation, and heat is stored in to the first boiler 9-1.This heat part is circulated and is met domestic hot-water and heat needs by domestic hot-water, and another part coordinates auxiliary heater 11 as absorption system 8 driving heat source.
Be specially: when domestic hot-water's Heating Cyclic, the second water pump 10-2, absorption system 8 are opened, the 9th valve 15-9 unlatching, the first valve 15-1, the 8th valve 15-8 close; Drive absorption system circulation time, open the second water pump 10-2, the 4th water pump 10-4 and the 5th water pump 10-5, the second valve 15-2 and the 8th valve 15-8, the second water collector 12-2, the second water knockout drum 13-2 open, the first valve 15-1 and the 9th valve 15-9 close, and auxiliary heater 11 is opened; When earth source heat pump kind of refrigeration cycle, the 3rd water pump 10-3 and the 4th water pump 10-4, source pump 3 are opened, the 4th valve 15-4 and the 7th valve 15-7, the first water collector 12-1 and the second water collector 12-2, the first water knockout drum 13-1 and the second water knockout drum 13-2 open, and the first valve 15-1, the 5th valve 15-5 and the 6th valve 15-6 close.
As shown in Figure 3, in the winter time, system is mainly used in meeting user for warm domestic hot-water's requirement, comprises solar energy heating domestic hot-water circulation, the circulation of solar energy auxiliary heating Heating by Ground Source Heat Pump.Solar energy heating domestic hot-water is circulated the same.Solar energy auxiliary heating Heating by Ground Source Heat Pump circulation time, the second water pump 10-2, the 3rd water pump 10-3 and the 4th water pump 10-4 open, source pump 3 is opened, the 5th water pump 10-5, absorption system 8 are closed, the first valve 15-1, the 5th valve 15-5, the 6th valve 15-6, the first water collector 12-1 and the second water collector 12-2, the first water knockout drum 13-1 and the second water knockout drum 13-2 open, and the second valve 15-2, the 4th valve 15-4, the 7th valve 15-7, the 8th valve 15-8 and the 9th valve 15-9 close.
Be much higher than the heating capacity in winter for warm area refrigerating capacity in summer, while using earth source heat pump separately in such area, will cause the unbalance situation of Soil Thermal.Solar energy of the present invention and geothermal energy united operational system are passed through solar energy utilization technique and solar energy absorption type refrigeration technology and the organic integration of earth source heat pump cold and heat supply technology, can effectively solve the Soil Thermal unbalance that uses earth source heat pump to cause because of separately, and utilize at comprehensive high-efficiency on the basis of solar energy and geothermal energy, realized domestic hot-water is provided building summer cooling, heat supply in winter and the whole year.
Earth source heat pump can be selected according to thermic load in winter, and summer, refrigeration duty insufficient section supplemented with solar energy absorption type refrigeration.So not only can reduce widely the initial cost of ground heat exchanger, but also can make ground heat exchanger intermittent duty, arriving in time of Soil Temperature Field recovers.Mutually combine by solar energy and geothermal energy utilization technology, the present invention has improved the comprehensive utilization ratio of solar energy and geothermal energy, and for alleviating, energy and environment problem is significant.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.First, second word such as grade occurring in literary composition is only dependency structure for convenience of description, but not points out to limit its order or importance.
Claims (5)
1. the heat-exchange system of a solar energy and geothermal energy united operation, comprise solar thermal collector (1), ground heat exchanger (2), source pump (3), absorption refrigeration unit (8), user side (14), and some boilers, water pump, connecting pipeline and valve, it is characterized in that:
Described solar thermal collector (1) is communicated with the first boiler (9-1), and the first boiler (9-1) connects and composes closed circuit with the second water tank (9-2) and auxiliary heater (11) respectively by the second water pump (10-2), is provided with valve between loop;
Described ground heat exchanger (2) is communicated with source pump (3), and described source pump (3) forms closed circuit by the 3rd water pump (10-3) and ground heat exchanger (2) and the first boiler (9-1), is provided with valve in loop;
User side (14) forms closed circuit by the 4th water pump (10-4) and source pump (3), absorption system (8), is provided with valve in loop.
2. the heat-exchange system of solar energy as claimed in claim 1 and geothermal energy united operation, it is characterized in that, on pipeline between described solar thermal collector (1) and the first boiler (9-1), the first water pump (10-1) is set, the entrance of described solar thermal collector (1) is connected with the outlet of the first water pump (10-1), and the import of the outlet of solar thermal collector (1) and the first water pump (10-1) is connected with the first boiler (9-1).
3. the heat-exchange system of solar energy as claimed in claim 1 or 2 and geothermal energy united operation, is characterized in that, described source pump (3) comprises the first condenser (4-1) and the first evaporimeter (5-1); Described absorption refrigeration unit (8) comprises generator (6), absorber (7), the second condenser (4-2), the second evaporimeter (5-2) and heat exchanger (16).
4. the heat-exchange system of solar energy as claimed in claim 3 and geothermal energy united operation, is characterized in that, also comprises some water collectors and water knockout drum;
Wherein, the import of the second water pump (10-2) is connected with the first hot water storage tank (9-1), and the outlet of the second water pump (10-2) is connected with the second boiler (9-2) with the import of the first water collector (12-1), auxiliary heater (11); The import of the first water collector (12-1) is connected with the outlet of ground heat exchanger (2), and the outlet of the first water collector (12-1) is connected with the import of the 3rd water pump (10-3); The outlet of the 3rd water pump (10-3) is connected with the import of the first condenser (4-1), the first evaporimeter (5-1);
The outlet of the first water knockout drum (13-1) is connected with the first boiler (9-1) and ground heat exchanger (2) import, the import of the first water knockout drum (13-1) is connected with the first condenser (4-1) and the first evaporimeter (5-1) outlet, and the second water collector (12-2) import is connected with the first evaporimeter (5-1) outlet with the second evaporimeter (5-2) outlet and the first condenser (4-1);
The second water collector (12-2) outlet is connected with user's end (14) import, and the second water knockout drum (13-2) exports with (5-2) import of the second evaporimeter and the first condenser (4-1) and the first evaporimeter (5-1) import and is connected;
The second water knockout drum (13-2) import is connected with the 4th water pump (10-4) outlet.
5. the heat-exchange system of solar energy as claimed in claim 4 and geothermal energy united operation, it is characterized in that, described the 4th water pump (10-4) import is connected with user side (14) outlet, the 5th water pump (10-5) import is connected with absorber (7), and the 5th water pump (10-5) outlet is connected with heat exchanger (16).
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| CN201410136029.2A CN103900287B (en) | 2014-04-04 | 2014-04-04 | The heat-exchange system that solar energy runs with geothermal energy united |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105588162A (en) * | 2015-02-06 | 2016-05-18 | 海信（山东）空调有限公司 | Compound heating system and control method |
| CN107202451A (en) * | 2017-03-13 | 2017-09-26 | 西安交通大学 | A kind of residents multipotency source absorption type capillary network refrigeration system |
| CN107328003A (en) * | 2017-08-22 | 2017-11-07 | 南京索乐优节能科技有限公司 | A kind of solar energy earth-source hot-pump system of classified utilization heat energy |
| CN107957109A (en) * | 2017-12-22 | 2018-04-24 | 山东飞龙制冷设备有限公司 | A kind of solar airconditioning unit |
| CN109708329A (en) * | 2018-12-29 | 2019-05-03 | 天津城建大学 | Enhanced ground heat exchanger utilization system and the method for operation |
| CN109780738A (en) * | 2019-02-20 | 2019-05-21 | 广州供电局有限公司 | Solar energy storage converting system |
| CN114777350A (en) * | 2022-05-19 | 2022-07-22 | 华北电力大学 | Photovoltaic heat-ground source thermal coupling double-evaporator hybrid heating and cooling system |
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| FR3083594B1 (en) * | 2018-07-05 | 2021-01-08 | Feng Tech Fengtech | THERMAL INSTALLATION |
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| CN109708329A (en) * | 2018-12-29 | 2019-05-03 | 天津城建大学 | Enhanced ground heat exchanger utilization system and the method for operation |
| CN109780738A (en) * | 2019-02-20 | 2019-05-21 | 广州供电局有限公司 | Solar energy storage converting system |
| CN114777350A (en) * | 2022-05-19 | 2022-07-22 | 华北电力大学 | Photovoltaic heat-ground source thermal coupling double-evaporator hybrid heating and cooling system |
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| CN103900287B (en) | 2016-08-17 |
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