CN202613556U - Ground source heat pump heating system utilizing heating terminals for free cooling - Google Patents

Ground source heat pump heating system utilizing heating terminals for free cooling Download PDF

Info

Publication number
CN202613556U
CN202613556U CN2012202208833U CN201220220883U CN202613556U CN 202613556 U CN202613556 U CN 202613556U CN 2012202208833 U CN2012202208833 U CN 2012202208833U CN 201220220883 U CN201220220883 U CN 201220220883U CN 202613556 U CN202613556 U CN 202613556U
Authority
CN
China
Prior art keywords
heating
heat pump
source heat
terminal
ground source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2012202208833U
Other languages
Chinese (zh)
Inventor
李先庭
吴伟
王宝龙
石文星
游田
张晓灵
李炳田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN2012202208833U priority Critical patent/CN202613556U/en
Application granted granted Critical
Publication of CN202613556U publication Critical patent/CN202613556U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272Solar heating or cooling
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54Free-cooling systems

Abstract

The utility model provides a ground source heat pump heating system utilizing heating terminals for free cooling, and belongs to the technical field of heating air conditioners. The ground source heat pump heating system utilizing the heating terminals for free cooling is formed in the way that a free cooling loop is additionally provided based on a common ground source heat pump heating system. In winter, a ground source heat pump is used to obtain heat from underground and produce hot water to be supplied to the heating terminals. In summer, the additionally-provided free cooling loop is used to convey effluent water of a buried pipe or an underground heat-exchanging water well to the heating terminals, thereby supplying free cooling to the inside of rooms. The ground source heat pump heating system utilizing the heating terminals for free cooling fully utilizes existing natural cooling resources of the heating terminals, provides free cooling for a building, reduces the load of air-conditioners, achieves heat-supplement for underground soil, and resolves the problems that the temperature of the soil is reduced and the performance of the heat pump is weakened due to the fact that the ground source heat pump obtains heat from underground for a long time. For a system provided with solar heat-supplement equipment and other heat-supplement equipment, the ground source heat pump heating system utilizing the heating terminals for free cooling reduces the capacity of the heat-supplement equipment and saves investment.

Description

A kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating
Technical field
The utility model relates to a kind of earth source heat pump heating system, belongs to the heat supplying air conditioning technical field.
Background technology
China's building heating energy consumption is huge, in the building energy consumption that accounts for social total energy consumption 22% ~ 25%, has 40% to be used for building and heating approximately.Wherein, area, northern cities and towns adopts the energy consumption of heat supply network central heating or sub-district central heating to account for 60% of building and heating total energy consumption.Along with the quick increase of construction area, the heating demand also can increase substantially.Therefore, heating and energy saving is the most important thing of China's building energy conservation.
North cities and towns heating is mainly the central heating mode based on combustion of fossil fuel, and not only efficiency is low but also pollution is big.The average efficiency of coal-burning boiler is merely 65%, even for efficient at the gas fired-boiler more than 90%, the primary energy efficient of heating also is lower than 100%.In recent years, earth-source hot-pump system has obtained using very widely, because of it is counted as a kind of renewable energy utilization technology.But there is heat-obtaining and the imbalance of heat extraction in summer in winter in earth-source hot-pump system, and operation all the year round can cause the decline year by year of the soil moisture; For the earth-source hot-pump system of heat supply only, only there is the heat-obtaining in winter, then the decline meeting of the soil moisture is more serious.So just cause the significantly decay of unit performance, even can't normally move at all, the reliability of heat supply can not get better guarantees.For absorption heat pump, under the same conditions, because less from the heat-obtaining amount of soil, the slippage of the soil moisture will be significantly less than electric heating pump.The soil moisture descends and the problem of heat pump heat supply performance degradation but the operation all the year round of absorption type heat pump system also can't thoroughly solve.Solve at present in the earth-source hot-pump system soil thermal unbalance problem solution commonly used, increasing pipe laying spacing floor space is big and relief capabilities is limited; Boiler auxiliary thermal source efficiency is low; Solar energy concurrent heating poor reliability.Therefore, thermal unbalance of earth-source hot-pump system soil and performance degradation are to ensure northern area reliability of heat-supply system and energy-saving run problem demanding prompt solution.
The utility model content
The purpose of the utility model is to have proposed a kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating, and this system makes full use of the terminal and underground natural low-temperature receiver of existing heating, to building free cold supply is provided.For the building of not establishing air-conditioning, extra cold can be provided; For the building that is provided with heating and air-conditioning two cover systems, then can reduce the refrigeration duty of air-conditioning system.And the terminal cooling of heating can also store indoor waste heat in underground, realizes the concurrent heating to soil, thereby effectively alleviates the reduction of ground temperature and the performance degradation of earth source heat pump heating system.For the system that is furnished with concurrent heating equipment, then can also reduce the capacity of concurrent heating equipment, save initial cost.
The technical scheme of the utility model is following:
A kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating, this system comprise earth source heat pump unit, user side water pump, heating terminal, source water pump and underground heat exchange system; The user side outlet of said earth source heat pump unit links to each other with the terminal inlet of heating through the user side water pump, and the user side inlet of earth source heat pump unit links to each other with the terminal outlet of heating; The outlet of said underground heat exchange system links to each other with the ground source inlet of earth source heat pump unit through ground source water pump, and the inlet of underground heat exchange system links to each other with the ground source outlet of earth source heat pump unit; It is characterized in that: between ground source exit of pump and the terminal inlet of heating, increased the free cold supply supply channel; Between the inlet of terminal outlet of heating and underground heat exchange system, increase the free cold supply water return pipeline, and on the free cold supply supply channel, be provided with second valve; Described underground heat exchange system, free cold supply supply channel, heating end and free cold supply water return pipeline have constituted the terminal free cold supply loop of heating.
Described a kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating is characterized in that: terminal radiator, radiant panel or the fan coil of adopting of said heating.Said underground heat exchange system is ground heat exchanger or underground water well.Said earth source heat pump unit is electric heating pump or absorption heat pump.
The utility model is compared with existing system, has the following advantages and beneficial effect: 1. made full use of the terminal and underground natural low-temperature receiver realization free cold supply of existing heating; 2. realized seasonal concurrent heating through the terminal free cold supply of heating, thereby effectively alleviated the reduction of ground temperature and the performance degradation of earth source heat pump heating system soil; 3. for the building that is provided with heating and air-conditioning two cover systems, can reduce the refrigeration duty of air-conditioning system; 4. for the system that is furnished with concurrent heating equipment, can also reduce the capacity of concurrent heating equipment, reduce initial cost.
Generally speaking, the utility model is the heating system of energy-conserving and environment-protective.Be specially adapted to have winter the building that but heat demand summer is not high to air-conditioning requirement or do not establish air-conditioning; For the building that heating and air-conditioning system are separated, the terminal cooling of heating can be used for reducing the refrigeration duty of air-conditioning system; For the system that is furnished with concurrent heating equipment, then can also reduce the capacity of concurrent heating equipment, reduce initial cost.
Description of drawings
Fig. 1 is the disclosed a kind of structural representation that utilizes the earth source heat pump heating system of the terminal free cold supply of heating of the utility model.
Fig. 2 is the sketch map of the Winter heat supply pattern of the utility model.
Fig. 3 is the sketch map of adopting free cold supply pattern in summer of the utility model.
Among the figure: 1-earth source heat pump unit; 2-user side water pump; 3-heating is terminal; 4-first valve; 5-ground source water pump; The 6-underground heat exchange system; 7-second valve; 8-free cold supply supply channel; 9-free cold supply water return pipeline.
The specific embodiment
Below in conjunction with accompanying drawing structure, principle and the course of work of the utility model are done further explanation.
Fig. 1 is the disclosed a kind of structural representation that utilizes the earth source heat pump heating system of the terminal free cold supply of heating of the utility model, this system comprise earth source heat pump unit 1, user side water pump 2, heating terminal 3, source water pump 5 and underground heat exchange system 6; The user side outlet of said earth source heat pump unit 1 links to each other through the inlet of user side water pump 2 with heating terminal 3, and the user side inlet of earth source heat pump unit 1 links to each other with the outlet of heating terminal 3; The outlet of said underground heat exchange system 6 links to each other with the ground source inlet of earth source heat pump unit 1 through ground source water pump 5, and the inlet of underground heat exchange system 6 links to each other with the ground source outlet of earth source heat pump unit 1.Between 5 outlets of ground source water pump and terminal 3 inlets of heating, increased free cold supply supply channel 8; Between the inlet of the outlet of heating terminal 3 and underground heat exchange system 6, increase free cold supply water return pipeline 9, and on free cold supply supply channel 8, be provided with second valve 7; Described underground heat exchange system 6, free cold supply supply channel 8, heating terminal 3. and free cold supply water return pipeline 9 have constituted the terminal free cold supply loop of heating.In summer, it is terminal 3 that the water outlet of underground heat exchange system is directly sent into the heating of building through ground source water pump 5, realizes free cold supply, and the aperture control of the flow through regulating ground source water pump 5 or second valve 7 gets into the water temperature of heating terminal 3.Said heating terminal 3 can be adopted radiator, various radiant panel or fan coil.Said underground heat exchange system 6 adopts ground heat exchanger or underground water well.Said earth source heat pump unit 1 is electric heating pump or absorption heat pump.
Fig. 2 is the sketch map of the Winter heat supply pattern of the utility model.In the heating phase; Close second valve 7; The refrigerating medium of underground heat exchange system 6 outlet turns back to underground heat exchange system 6 after by absorbing and cooling temperature in the evaporimeter of earth source heat pump unit 1, produce heat supply hot water behind the heat that earth source heat pump unit 1 extracts in the refrigerating medium and enter into heating terminal 3 through user side water pump 2 and give user's heat supply.
Fig. 3 is the sketch map of adopting free cold supply pattern in summer of the utility model.For the building that air-conditioning system perhaps is provided with independent air-conditioning system is not set; In summer; Ground source water pump 5 is directly sent into heating end 3 with the cold water of underground heat exchange system 6 outlets through free cold supply supply channel 8, is the building free cold supply, gets back to heat elimination and cooling in the underground heat exchange system 6 after heat absorption heats up in heating terminal 3; The circulation of formation free cold supply has also been carried out concurrent heating to soil simultaneously.When the outlet cold water temperature of underground heat-exchange system 6 lower and when making that heating terminal 3 has dewfall possible, can regulate flow or the aperture of second valve 7 of source water pump 5, suitably improve cold water temperature.When regulating flow or aperture also can't avoid terminal 3 dewfall of heating the time, then can suitably stop free cold supply.Terminal for fan coil heating, then need not consider the danger of dewfall.

Claims (4)

1. earth source heat pump heating system of utilizing the terminal free cold supply of heating, comprise earth source heat pump unit (1), user side water pump (2), heating terminal (3), source water pump (5) and underground heat exchange system (6); The user side outlet of said earth source heat pump unit (1) links to each other through the inlet of user side water pump (2) with heating terminal (3), and the user side inlet of earth source heat pump unit (1) links to each other with the outlet of heating terminal (3); The outlet of said underground heat exchange system (6) links to each other with the ground source inlet of earth source heat pump unit (1) through ground source water pump (5), and the inlet of underground heat exchange system (6) links to each other with the ground source outlet of earth source heat pump unit (1); It is characterized in that: between ground source water pump (5) outlet and heating terminal (3) inlet, increased free cold supply supply channel (8); Between the inlet of the outlet of heating terminal (3) and underground heat exchange system (6), increase free cold supply water return pipeline (9), and on free cold supply supply channel (8), be provided with second valve (7); Described underground heat exchange system (6), free cold supply supply channel (8), heating terminal (3). constituted the terminal free cold supply loop of heating with free cold supply water return pipeline (9).
2. a kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating according to claim 1 is characterized in that: radiator, radiant panel or fan coil are adopted in said heating terminal (3).
3. a kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating according to claim 1, it is characterized in that: said underground heat exchange system (6) is ground heat exchanger or underground water well.
4. a kind of earth source heat pump heating system of utilizing the terminal free cold supply of heating according to claim 1, it is characterized in that: said earth source heat pump unit (1) is electric heating pump or absorption heat pump.
CN2012202208833U 2012-05-16 2012-05-16 Ground source heat pump heating system utilizing heating terminals for free cooling Expired - Lifetime CN202613556U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202208833U CN202613556U (en) 2012-05-16 2012-05-16 Ground source heat pump heating system utilizing heating terminals for free cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202208833U CN202613556U (en) 2012-05-16 2012-05-16 Ground source heat pump heating system utilizing heating terminals for free cooling

Publications (1)

Publication Number Publication Date
CN202613556U true CN202613556U (en) 2012-12-19

Family

ID=47347247

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012202208833U Expired - Lifetime CN202613556U (en) 2012-05-16 2012-05-16 Ground source heat pump heating system utilizing heating terminals for free cooling

Country Status (1)

Country Link
CN (1) CN202613556U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108207640A (en) * 2018-02-05 2018-06-29 邱榕生 A kind of energy conservation and environmental protection cultural method using earth source heat pump
CN110398084A (en) * 2019-07-22 2019-11-01 西安建筑科技大学 A kind of ground-source heat pump system and control method of continuously-running
CN112524846A (en) * 2020-12-09 2021-03-19 中国煤炭地质总局水文地质局 Ultralow-consumption ground source heat pump refrigerating and heating system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108207640A (en) * 2018-02-05 2018-06-29 邱榕生 A kind of energy conservation and environmental protection cultural method using earth source heat pump
CN110398084A (en) * 2019-07-22 2019-11-01 西安建筑科技大学 A kind of ground-source heat pump system and control method of continuously-running
CN110398084B (en) * 2019-07-22 2021-10-08 西安建筑科技大学 Ground source heat pump system capable of continuously operating and control method
CN112524846A (en) * 2020-12-09 2021-03-19 中国煤炭地质总局水文地质局 Ultralow-consumption ground source heat pump refrigerating and heating system

Similar Documents

Publication Publication Date Title
CN102331110B (en) Regional heating, cooling and power combined energy system and method based on absorption heat exchange
CN101240949B (en) Cascade energy usable variable capacity family energy resource system
CN203823873U (en) Solar heat pump heat accumulating and heating system
CN202209817U (en) District cooling, heating and power combined energy system based on absorption heat exchange
CN100547321C (en) Solar-gas engine heat pump heating device and method of operating thereof
CN102607091B (en) Combination method of waste heat of low-temperature industrial circulating cooling water and regional centralized heat supply
CN101839585A (en) Solar energy-air source heat pump composite system suitable for microthermal climate
CN102032632A (en) Novel energy resource air conditioning mode and system
CN201032233Y (en) Cold and heat storage type ground source heat pump central air conditioner
CN104864447B (en) Comprehensive regenerative resource cold and heat supply system
CN106016825A (en) Solar and air source heat pump dual heat source tri-generation system
CN2929594Y (en) Solar energy-gas combustion machine heat pump heater
CN2854403Y (en) Building warm air conditioner using solar-low temp cold/heat source combined circulation heat pump
CN105241142A (en) Control method of combined type cooling and heating system
CN202613556U (en) Ground source heat pump heating system utilizing heating terminals for free cooling
CN101776352A (en) Ground source heat pump system applying system to recover heat and control method thereof
CN201377865Y (en) Air conditioner with air-source heat pump
CN103216895A (en) Air source heat pump assisted solar comprehensive heating and air-conditioning system
CN104482691B (en) Ground-source heat pump system obtaining heat from environment and operation method thereof
CN105180516B (en) Energy storage compensation type heat pump
CN202361697U (en) Direct expansion type mine return air source heat pump system
CN201662280U (en) Earth source heat pump system using system heat recovery
CN205279321U (en) Full heat energy air conditioning system based on new forms of energy
CN211176992U (en) Air energy ground source heat pump concurrent heating system
CN208671413U (en) Low-temperature nuclear heat supplying pile heat and cold supplier

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20121219

CX01 Expiry of patent term