CN103644591B - A kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump - Google Patents
A kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump Download PDFInfo
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- CN103644591B CN103644591B CN201310708498.2A CN201310708498A CN103644591B CN 103644591 B CN103644591 B CN 103644591B CN 201310708498 A CN201310708498 A CN 201310708498A CN 103644591 B CN103644591 B CN 103644591B
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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]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The present invention provides a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump, including: solar thermal collector, ethylene glycol loop, water loops a, water-alcohol heat exchanger, thermal storage tank, water loops b, water-water heat pump, water-water heat exchanger, water loops c, air source heat pump, heating air-conditioner end;Thermal storage tank is arranged on below ground, and the volume of thermal storage tank is adapted at geological conditions can not use the area use of soil source accumulation of heat.It provides the benefit that: realize adopting solar energy, air source heat pump, water resource heat pump and thermal storage tank, provides clean energy resource for building and heating, and alleviates lack of energy, reduces disposal of pollutants and application climate change.
Description
Technical field
The present invention relates to solar energy heat utilization field, particularly a kind of can convert the solar into heat energy after the composite heat supply air conditioning system that stores.
Background technology
Due to geographical position and the climatic characteristic of China, overwhelming majority building is required for using heating air-conditioner system, and the fast development of urban architecture brings huge development potentiality to earth-source hot-pump system application in building heating ventilation air-conditioning system.According to statistics, building energy consumption ratio shared by China's energy overall consumption has reached 27.6%, and still sustainable growth.Current China cities and towns civil buildings run power consumption and account for about the 25% of China's gross generation, and the fire coal that the heating of northern area cities and towns consumes accounts for the 15%~20% of China's non-power generating coal consumption, and these numerical value are only the energy that constructing operation consumes.
The energy that building use procedure consumes accounts for its full life process and consumes more than the 80% of total energy.Now China's cities and towns constructing operation energy consumption is by energy consumption except heating of northern area winter heating energy consumption, house and general public building, large public building structure of energy consumption, accounts for the 20%~22% of society's total energy consumption.Building energy consumption is affected by unit are energy consumption and building total amount, increases along with the increase of building total amount.In the U.S., the developed country such as European and Japanese, constructing operation energy consumption level is already at manufacturing the 20%~25% of big country period.
In building energy consumption, HVAC and the ratio shared by hot-water heating system are close to 60%, and the trend of the raising also continuation rising along with living standards of the people.
Severe cold area heat supply in winter phase length, thermic load are very big, and the summer air-conditioning phase is relatively short, and refrigeration duty is less, and the mean temperature of soil is relatively low, and the geological conditions in some area of China is not suitable for even cannot using soil source heat pump system to carry out heating, air-conditioning.And be used alone air source heat pump and can not meet the heat demand at severe cold Heating Season.
At present, the energy source of the most building heating of China is the combusts fossil energy, makes carbon emission increase, and environmental pollution and climate change are further exacerbated by.
Summary of the invention
In order to solve the inapplicable use soil source heat pump of geological conditions, conventional air source heat pump system is difficult to apply in severe cold area, and alleviation lack of energy, reduce the problem such as disposal of pollutants and application climate change, the technical solution adopted in the present invention is: the present invention provides a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump, including: solar thermal collector, ethylene glycol loop, water loops a, first circulating pump, water-alcohol heat exchanger, thermal storage tank, water loops b, second circulating pump, water-water heat pump, water-water heat exchanger, water loops c, air source heat pump, heating air-conditioner end;Thermal storage tank is arranged on below ground, and the volume of thermal storage tank is adapted at geological conditions can not use the area use of soil source accumulation of heat;
Solar thermal collector, by ethylene glycol loop, the first circulating pump, connection water-alcohol heat exchanger, forms closed annular path;Water-alcohol heat exchanger is connected with thermal storage tank by water loops a, the second circulating pump, forms water circulation path;Thermal storage tank, water-water heat pump, water-water heat exchanger are interconnected by water loops a;Water-water heat pump, water-water heat exchanger, air source heat pump, heating air-conditioner end are interconnected by water loops c;Heating air-conditioner end adopts fan coil or flooring radiation coil pipe;
When the medium in solar thermal collector absorption solar energy and loop is heated, start the first circulating pump and the second circulating pump;Heat is delivered to water-alcohol heat exchanger by ethylene glycol medium by the first circulating pump, and the water at low temperature of thermal storage tank lower floor is recycled to water-alcohol heat exchanger and carries out heat exchange by the second circulating pump, it is achieved by the heat storage purpose thermal storage tank;
The present invention provides a kind of composite heat supply air conditioning system different phase in a year adopting solar heat-preservation pond and heat pump to have following several method of operation:
Solar energy-pond accumulation of heat pattern: when the stopping heating of non-heating period, heating period system or heating period system operation air source heat pump heat, solar thermal collector is by collecting solar heat, transferred heat in thermal storage tank by ethylene glycol loop, the first circulating pump, water-alcohol heat exchanger and water loops a, the second circulating pump and store, until night or overcast and rainy time, during air source heat pump poor-performing, water-water heat pump is utilized to heat;
Thermal storage tank's direct heating pattern: according to thermal stratification phenomenon in thermal storage tank, fetches water from thermal storage tank upper strata water level during heating, the water after heat exchange drains into thermal storage tank lower floor water level;From the water level water intaking of thermal storage tank lower floor during cooling, the water after heat exchange is drained into thermal storage tank upper strata water level;Direct heating mode operation in pond is when heating just starts, and now thermal storage tank is due to seasonal storage effect, and water temperature is higher, it is possible to be directly used in heating;Pond supplying cold directly operates in system when just starting cooling, and now in thermal storage tank, water is due to the heat-obtaining effect of heat supply in winter, and water temperature is relatively low, it is possible to be directly used in cooling;Heat in thermal storage tank is sent to heating air-conditioner end by water loops b, water-water heat exchanger, water loops c;
Water resource heat pump heating mode;Operate in the mid-term of heating, during air source heat pump degraded performance, or when in heating latter stage thermal storage tank, temperature is still high, or higher in water-water heat pump thermal storage tank's temperature within the air-conditioning phase, when thermal storage tank's supplying cold directly is difficult to ensure that air conditioning requirements;Heat in thermal storage tank is sent to heating air-conditioner end by water loops b, water-water heat pump, water loops c;
Air source heat pump heating mode: when In The Initial Period Of Heating outdoor temperature is also of a relatively high, it is possible to use air source heat pump heats;Work as temperature in thermal storage tank in summer higher, when water-water heat pump cooling COP value is relatively low, runs air source heat pump and carry out cooling;Heat is transmitted between air source heat pump and heating air-conditioner end by water loops c;
Solar energy-pond accumulation of heat is carried out: when outdoor temperature is of a relatively high and effective thermal-arrest this pattern of luck row of solar thermal collector while air source heat pump cooling;Solar thermal collector is by collecting solar heat, by ethylene glycol loop, water-alcohol heat exchanger and water loops a, transfers heat in thermal storage tank and stores;Meanwhile, cold is transmitted between air source heat pump and heating air-conditioner end by water loops c;
Water resource heat pump heating, solar energy-pond accumulation of heat: when outside air temperature is relatively low, when air source heat pump operational effect is poor, if water temperature is relatively low in thermal storage tank, be not enough to reach the requirement of direct heating, simultaneously during the effective thermal-arrest of solar thermal collector, run this pattern;Solar thermal collector is by collecting solar heat, by ethylene glycol loop, water-alcohol heat exchanger and water loops a, transfers heat in thermal storage tank and stores;Heat in thermal storage tank is sent to heating air-conditioner end by water loops b, water-water heat pump, water loops c;
Pond direct heating carries out solar energy-pond accumulation of heat pattern simultaneously: when the temperature in thermal storage tank is higher, reach the requirement of direct heating, if the now effective thermal-arrest of solar thermal collector, runs this pattern;Solar thermal collector is by collecting solar heat, by ethylene glycol loop, water-alcohol heat exchanger and water loops a, transfers heat in thermal storage tank and stores;Heat in thermal storage tank is sent to heating air-conditioner end by water loops b, water-water heat exchanger, water loops c.
A kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump provided by the invention, it provides the benefit that: the air source heat pump system at inapplicable use soil source heat pump, routine is difficult to the area applied in severe cold area, realize adopting solar energy, air source heat pump, water resource heat pump and thermal storage tank, there is provided clean energy resource for building and heating, and alleviate lack of energy, reduce disposal of pollutants and application climate change.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the present invention.
Number in the figure illustrates as follows:
10-solar thermal collector, 11-ethylene glycol loop, 12 water loops a, 13 first circulating pumps, 60-water-alcohol heat exchanger, 20-thermal storage tank, 21-water loops b, 22 second circulating pumps, 30-water-water heat pump, 70-water-water heat exchanger, 31-water loops c, 40-air source heat pump, 50-heating air-conditioner end.
Detailed description of the invention
As shown in Figure 1, the present invention provides a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump, including: solar thermal collector 10, ethylene glycol loop 11, water loops a12, the first circulating pump 13, water-alcohol heat exchanger 60, thermal storage tank 20, water loops b21, the second circulating pump 22, water-water heat pump 30, water-water heat exchanger 70, water loops c31, air source heat pump 40, heating air-conditioner end 50;
Thermal storage tank 20 is arranged on below ground, and the volume of thermal storage tank 20 is relatively small, is adapted at geological conditions and can not use the area use of soil source accumulation of heat;
Solar thermal collector 10, by ethylene glycol loop the 11, first circulating pump 13, connection water-alcohol heat exchanger 60, forms closed annular path;Water-alcohol heat exchanger 60 is connected with thermal storage tank 20 by water loops a12, the second circulating pump 22, forms water circulation path;
Absorb when solar thermal collector 10 medium in solar energy and loop heated time, start the first circulating pump 13 and the second circulating pump 22;Heat is delivered to water-alcohol heat exchanger 60 by ethylene glycol medium by the first circulating pump 13, and the water at low temperature of thermal storage tank 20 lower floor is recycled to water-alcohol heat exchanger 60 and carries out heat exchange by the second circulating pump 22, it is achieved by the heat storage purpose thermal storage tank 20.
Thermal storage tank 20, water-water heat pump 30, water-water heat exchanger 70 are interconnected by water loops a12;Water-water heat pump 30, water-water heat exchanger 70, air source heat pump 40, heating air-conditioner end 50 are interconnected by water loops c31;Heating air-conditioner end 50 adopts fan coil or flooring radiation coil pipe;
As it is shown in figure 1, the present invention provides a kind of composite heat supply air conditioning system different phase in a year adopting solar heat-preservation pond and heat pump to have following several method of operation:
Solar energy-pond accumulation of heat pattern: when the stopping heating of non-heating period, heating period system or heating period system operation air source heat pump heat, solar thermal collector 10 is by collecting solar heat, by ethylene glycol loop the 11, first circulating pump 13, water-alcohol heat exchanger 60 and water loops a12, second circulating pump 22 transfers heat in thermal storage tank 20 and stores, until night or overcast and rainy time, during air source heat pump 40 poor-performing, water-water heat pump 30 is utilized to heat;
Thermal storage tank's direct heating pattern: according to thermal stratification phenomenon in thermal storage tank 20, fetches water from thermal storage tank 20 upper strata water level during heating, the water after heat exchange drains into thermal storage tank 20 lower floor water level;From the water level water intaking of thermal storage tank 20 lower floor during cooling, the water after heat exchange is drained into thermal storage tank 20 upper strata water level;Direct heating mode operation in pond is when heating just starts, and now thermal storage tank 20 is due to seasonal storage effect, and water temperature is higher, it is possible to be directly used in heating;Pond supplying cold directly operates in system when just starting cooling, and now in thermal storage tank 20, water is due to the heat-obtaining effect of heat supply in winter, and water temperature is relatively low, it is possible to be directly used in cooling;Heat in thermal storage tank 20 is sent to heating air-conditioner end 50 by water loops b21, water-water heat exchanger 70, water loops c31;
Water resource heat pump heating mode;Operate in the mid-term of heating, during air source heat pump 40 degraded performance, or when in heating thermal storage tank 20 in latter stage, temperature is still high, or higher in water-water heat pump 30 thermal storage tank 20 temperature within the air-conditioning phase, when thermal storage tank 20 supplying cold directly is difficult to ensure that air conditioning requirements;Heat in thermal storage tank 20 is sent to heating air-conditioner end 50 by water loops b21, water-water heat pump 30, water loops c31;
Air source heat pump heating mode: when In The Initial Period Of Heating outdoor temperature is also of a relatively high, it is possible to use air source heat pump 40 heats;Work as temperature in thermal storage tank 20 in summer higher, when water-water heat pump 30 cooling COP value is relatively low, runs air source heat pump 40 and carry out cooling;Heat is transmitted between air source heat pump 40 and heating air-conditioner end 50 by water loops c31;
Solar energy-pond accumulation of heat is carried out: when outdoor temperature is of a relatively high and effective thermal-arrest this pattern of luck row of solar thermal collector 10 while air source heat pump cooling;Solar thermal collector 10 is by collecting solar heat, by ethylene glycol loop 11, water-alcohol heat exchanger 60 and water loops a12, transfers heat in thermal storage tank 20 and stores;Meanwhile, cold is transmitted between air source heat pump 40 and heating air-conditioner end 50 by water loops c31;
Water resource heat pump heating, solar energy-pond accumulation of heat: when outside air temperature is relatively low, when air source heat pump 40 operational effect is poor, if water temperature is relatively low in thermal storage tank 20, it is not enough to reach the requirement of direct heating, simultaneously during solar thermal collector 10 effective thermal-arrest, run this pattern;Solar thermal collector 10 is by collecting solar heat, by ethylene glycol loop 11, water-alcohol heat exchanger 60 and water loops a12, transfers heat in thermal storage tank 20 and stores;Heat in thermal storage tank 20 is sent to heating air-conditioner end 50 by water loops b21, water-water heat pump 30, water loops c31;
Pond direct heating carries out solar energy-pond accumulation of heat pattern simultaneously: when the temperature in thermal storage tank is higher, reach the requirement of direct heating, if the now effective thermal-arrest of solar thermal collector 10, runs this pattern;Solar thermal collector 10 is by collecting solar heat, by ethylene glycol loop 11, water-alcohol heat exchanger 60 and water loops a12, transfers heat in thermal storage tank 20 and stores;Heat in thermal storage tank 20 is sent to heating air-conditioner end 50 by water loops b21, water-water heat exchanger 70, water loops c31.
Claims (7)
1. adopt a composite heat supply air conditioning system for solar heat-preservation pond and heat pump, including: solar thermal collector (10), ethylene glycol loop (11), water loops a (12), the first circulating pump (13), water-alcohol heat exchanger (60), thermal storage tank (20), water loops b (21), the second circulating pump (22), water-water heat pump (30), water-water heat exchanger (70), water loops c (31), air source heat pump (40), heating air-conditioner end (50);It is characterized in that: thermal storage tank (20) is arranged on below ground;Solar thermal collector (10), by ethylene glycol loop (11), the first circulating pump (13), connection water-alcohol heat exchanger (60), forms closed annular path;Water-alcohol heat exchanger (60), by water loops a (12), the second circulating pump (22), thermal storage tank (20) connection, forms water circulation path;Thermal storage tank (20), water-water heat pump (30), water-water heat exchanger (70) are interconnected by water loops a (12);Water-water heat pump (30), water-water heat exchanger (70), air source heat pump (40), heating air-conditioner end (50) are interconnected by water loops c (31).
2. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: at non-heating period, when the stopping heating of heating period system or heating period system operation air source heat pump heat, solar thermal collector (10) is by collecting solar heat, by ethylene glycol loop (11), water-alcohol heat exchanger (60) and water loops a (12), start the first circulating pump (13) and the second circulating pump (22) transfers heat in thermal storage tank (20) and stores, until night or overcast and rainy time, during air source heat pump (40) poor-performing, water-water heat pump (30) is utilized to heat.
3. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: according to the interior thermal stratification phenomenon of thermal storage tank (20), fetch water from thermal storage tank (20) upper strata water level during heating, the water after heat exchange is drained into thermal storage tank (20) lower floor water level;From the water level water intaking of thermal storage tank (20) lower floor during cooling, the water after heat exchange is drained into thermal storage tank (20) upper strata water level;Direct heating mode operation in pond is when heating just starts, and now thermal storage tank (20) is due to seasonal storage effect, and water temperature is higher, it is possible to be directly used in heating;Pond supplying cold directly operates in system when just starting cooling, and now thermal storage tank (20) interior water is due to the heat-obtaining effect of heat supply in winter, and water temperature is relatively low, it is possible to be directly used in cooling;Heat in thermal storage tank (20) is sent to heating air-conditioner end (50) by water loops b (21), water-water heat exchanger (70), water loops c (31).
4. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: operate in the mid-term of heating, during air source heat pump (40) degraded performance, or heating thermal storage tank (20) interior temperature in latter stage still high time, or higher in water-water heat pump (30) thermal storage tank (20) temperature within the air-conditioning phase, when thermal storage tank (20) supplying cold directly is difficult to ensure that air conditioning requirements;Heat in thermal storage tank (20) is sent to heating air-conditioner end (50) by water loops b (21), water-water heat pump (30), water loops c (31);
Air source heat pump heating mode: when In The Initial Period Of Heating outdoor temperature is also of a relatively high, it is possible to use air source heat pump (40) heats;Work as temperature in thermal storage tank (20) in summer higher, when water-water heat pump (30) cooling COP value is relatively low, runs air source heat pump (40) and carry out cooling;Heat is transmitted between air source heat pump (40) and heating air-conditioner end (50) by water loops c (31).
5. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: when outdoor temperature is of a relatively high and during solar thermal collector (10) effectively thermal-arrest, solar thermal collector (10) is by collecting solar heat, by ethylene glycol loop (11), water-alcohol heat exchanger (60) and water loops a (12), transfer heat in thermal storage tank (20) and store;Meanwhile, cold is transmitted between air source heat pump (40) and heating air-conditioner end (50) by water loops c (31).
6. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: when outside air temperature is relatively low, when air source heat pump (40) operational effect is poor, if thermal storage tank (20) interior water temperature is relatively low, it is not enough to reach the requirement of direct heating, simultaneously during solar thermal collector (10) effectively thermal-arrest, solar thermal collector (10) is by collecting solar heat, by ethylene glycol loop (11), water-alcohol heat exchanger (60) and water loops a (12), transfer heat in thermal storage tank (20) and store;Heat in thermal storage tank (20) is sent to heating air-conditioner end (50) by water loops b (21), water-water heat pump (30), water loops c (31).
7. a kind of composite heat supply air conditioning system adopting solar heat-preservation pond and heat pump according to claim 1, it is characterized in that: when the temperature in thermal storage tank is higher, reach the requirement of direct heating, solar thermal collector (10) is thermal-arrest effectively, solar thermal collector (10) is by collecting solar heat, by ethylene glycol loop (11), water-alcohol heat exchanger (60) and water loops a (12), transfer heat in thermal storage tank (20) and store;Heat in thermal storage tank (20) is sent to heating air-conditioner end (50) by water loops b (21), water-water heat exchanger (70), water loops c (31).
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CN104075484B (en) * | 2014-06-28 | 2016-01-20 | 新疆太阳能科技开发公司 | A kind of heating air-conditioner system and operation method fully utilizing solar energy and air energy |
CN107036155B (en) * | 2017-06-20 | 2024-02-20 | 国网山东综合能源服务有限公司 | Double-heat source heat pump-solar energy combined heating system and method |
CN107166499B (en) * | 2017-06-22 | 2020-02-14 | 日出东方太阳能股份有限公司 | Cross-season heat storage and supply system and heating method thereof |
CN113819503B (en) * | 2021-09-30 | 2022-08-26 | 河北工程大学 | Solar energy-water source heat pump heating system for obtaining heat by means of solar energy and phase change |
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CN103196176A (en) * | 2013-04-22 | 2013-07-10 | 重庆大学 | Multi-family solar hot water supply system with auxiliary air-source heat pump |
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CN101126563A (en) * | 2007-09-27 | 2008-02-20 | 成都建工建筑节能科技有限公司 | Water source heat pump device |
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