CN103277856A - Solar seasonal cold and hot combined air conditioning system - Google Patents

Solar seasonal cold and hot combined air conditioning system Download PDF

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CN103277856A
CN103277856A CN2013102055682A CN201310205568A CN103277856A CN 103277856 A CN103277856 A CN 103277856A CN 2013102055682 A CN2013102055682 A CN 2013102055682A CN 201310205568 A CN201310205568 A CN 201310205568A CN 103277856 A CN103277856 A CN 103277856A
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heat
reversing valve
way reversing
cold
cooling
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姚远
马伟斌
廉永旺
龚宇烈
王显龙
李华山
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Guangzhou Institute of Energy Conversion of CAS
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • 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]
    • Y02B30/62Absorption based systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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Abstract

本发明公开了一种太阳能跨季节冷热联供空调系统。该系统由四大子系统组成,分别是集热系统、蓄热系统、吸收式冷热联供系统和蓄冷系统。集热系统主要由槽式集热器和高温储油罐组成;蓄热系统的核心部件是相变蓄热器;吸收式冷热联供系统主要由发生器,吸收器,蒸发器,冷凝器,溶液换热器和冷却塔等组成;蓄冷系统主要是地下蓄冷水池。本发明运用太阳能高温集热技术显著提高集热效率,采用中高温复合蓄热材料设计合理高效的蓄热器-换热器结构,使得能量间歇不稳定输入与能量持续稳定输出两个工作状态相分离,实现太阳能空调的稳定运行。同时,建立可以实现跨季节蓄冷的蓄能装置,对太阳能进行跨季节的存储和输出,根据不同季节对空调的冷热需求量不同进行调配。

The invention discloses an air-conditioning system for inter-season combined cold and heat supply by solar energy. The system consists of four subsystems, namely heat collection system, heat storage system, absorption combined cooling and heating system and cold storage system. The heat collection system is mainly composed of a trough collector and a high-temperature oil storage tank; the core component of the heat storage system is a phase change heat accumulator; the absorption combined cooling and heating system is mainly composed of a generator, an absorber, an evaporator, and a condenser , a solution heat exchanger and a cooling tower; the cold storage system is mainly an underground cold storage pool. The invention uses solar high-temperature heat collection technology to significantly improve heat collection efficiency, and uses medium-high temperature composite heat storage materials to design a reasonable and efficient heat accumulator-heat exchanger structure, so that the intermittent unstable input of energy and the continuous and stable output of energy are separated. , to achieve stable operation of solar air conditioners. At the same time, build an energy storage device that can store cold across seasons, store and output solar energy across seasons, and deploy it according to the different demand for cold and heat of air conditioners in different seasons.

Description

一种太阳能跨季节冷热联供空调系统A solar energy cross-season combined cooling and heating air conditioning system

技术领域technical field

本发明涉及一种利用太阳能作为能源动力,并具有跨季节蓄热蓄冷功能的冷热联供空调系统,该技术涵盖太阳能集热技术、吸收式制冷技术、蓄热蓄冷技术等技术领域。The invention relates to a combined cooling and heating air-conditioning system using solar energy as energy power and having the function of cross-season heat storage and cold storage. The technology covers the technical fields of solar heat collection technology, absorption refrigeration technology, heat storage and cold storage technology, and the like.

背景技术Background technique

太阳能空调就是利用太阳能作为吸收式制冷机的能源来源进行制冷或供热的成套设备。太阳能空调耗电极少,无污染无排放,运行安静无噪声,是很有发展前景的新能源利用设备。当前,太阳能空调主要由太阳能平板集热器、吸收式制冷机两大主要部分组成。太阳能平板集热器收集太阳能,产生80℃~100℃的热水,热水作为驱动热源进入吸收式制冷机,吸收式制冷机产生冷媒水进入空调末端。虽然太阳能有很多优点,比如能量是巨大的,普遍的,长久的和无害的。同时,太阳能作为可利用能源也有其明显的局限性,比如能量密度低,热辐射强度随机性大,而且具有间歇性。目前太阳能空调的主要问题就是制冷效率低、受太阳辐射波动影响大而工作不稳定,太阳能无法存储,热量不能根据实际需要调节,因此不能保证全年可靠、高效工作。A solar air conditioner is a complete set of equipment that uses solar energy as the energy source of an absorption refrigerator for cooling or heating. Solar air conditioners consume very little electricity, have no pollution, no emissions, and operate quietly and without noise. They are new energy utilization devices with great development prospects. At present, solar air conditioners are mainly composed of two main parts: solar plate collectors and absorption refrigerators. The solar flat plate collector collects solar energy and generates hot water at 80°C to 100°C. The hot water enters the absorption chiller as a driving heat source, and the absorption chiller produces refrigerant water that enters the air conditioner terminal. Although solar energy has many advantages, such as energy is huge, universal, long-lasting and harmless. At the same time, as an available energy source, solar energy also has its obvious limitations, such as low energy density, high randomness and intermittent nature of thermal radiation intensity. At present, the main problems of solar air conditioners are low cooling efficiency, unstable work due to the great influence of solar radiation fluctuations, solar energy cannot be stored, and heat cannot be adjusted according to actual needs, so reliable and efficient work cannot be guaranteed throughout the year.

针对太阳能空调的上述局限性,本发明运用太阳能高温集热技术显著提高集热效率,采用中高温复合蓄热材料设计合理高效的蓄热器-换热器结构,使得能量间歇不稳定输入与能量持续稳定输出两个工作状态相分离,实现太阳能空调的稳定运行。同时,建立可以实现跨季节蓄冷的蓄能装置,对太阳能进行跨季节的存储和输出,根据不同季节对空调的冷热需求量不同进行调配。Aiming at the above-mentioned limitations of solar air conditioners, this invention uses solar high-temperature heat collection technology to significantly improve heat collection efficiency, and uses medium-high temperature composite heat storage materials to design a reasonable and efficient heat accumulator-heat exchanger structure, so that intermittent unstable input of energy and continuous energy The two working states of the stable output are separated to realize the stable operation of the solar air conditioner. At the same time, build an energy storage device that can store cold across seasons, store and output solar energy across seasons, and deploy it according to the different demand for cold and heat of air conditioners in different seasons.

发明内容Contents of the invention

本发明的目的在于克服现有技术存在的技术问题,提供一种太阳能跨季节冷热联供空调系统。The purpose of the present invention is to overcome the technical problems in the prior art, and provide a solar energy cross-season combined cooling and heating air conditioning system.

为实现以上目的,本发明采取了以下的技术方案:一种太阳能跨季节冷热联供空调系统,包括集热系统、蓄热系统、吸收式冷热联供系统和蓄冷系统,所述集热系统包括槽式集热器和高温储油罐,蓄热系统包括相变蓄热器,吸收式冷热联供系统包括发生器、吸收器、蒸发器、冷凝器、溶液换热器和节流阀,蓄冷系统包括蓄冷水池;槽式集热器以并联的形式连接,槽式集热器的两端通过第一三通换向阀和第二三通换向阀分别与高温储油罐连接,高温储油罐还通过第三三通换向阀和第四三通换向阀分别与发生器连接;所述相变蓄热器两端通过第二三通换向阀和第一三通换向阀与高温储油罐并联;发生器和冷凝器设置在一个真空密封罐内,吸收器和蒸发器设置在另一个真空密封罐内,两个真空密封罐之间分别通过溶液换热器和节流阀连接,蓄冷水池进出口管道通过第五三通换向阀和第六三通换向阀分别与蒸发器的冷冻水管及空调末端的风机盘管(17)连接。通过三通换向阀的控制,空调冷冻水可以来自制冷机,也可以来自地下蓄冷水池。In order to achieve the above purpose, the present invention adopts the following technical solutions: a solar energy inter-season combined cooling and heating air conditioning system, including a heat collection system, a heat storage system, an absorption combined cooling and heating system and a cold storage system, the heat collection The system includes trough collectors and high-temperature oil storage tanks, the heat storage system includes phase change heat accumulators, and the absorption combined cooling and heating system includes generators, absorbers, evaporators, condensers, solution heat exchangers and throttling The cold storage system includes a cold storage pool; the trough collectors are connected in parallel, and the two ends of the trough collectors are respectively connected to the high-temperature oil storage tank through the first three-way reversing valve and the second three-way reversing valve , the high-temperature oil storage tank is also connected to the generator through the third three-way reversing valve and the fourth three-way reversing valve; The reversing valve is connected in parallel with the high-temperature oil storage tank; the generator and condenser are set in one vacuum-sealed tank, the absorber and evaporator are set in another vacuum-sealed tank, and the two vacuum-sealed tanks are respectively passed through a solution heat exchanger It is connected with the throttle valve, and the inlet and outlet pipes of the cold storage pool are respectively connected with the chilled water pipe of the evaporator and the fan coil unit (17) at the end of the air conditioner through the fifth three-way reversing valve and the sixth three-way reversing valve. Through the control of the three-way reversing valve, the chilled water of the air conditioner can come from the refrigerator or from the underground cold storage pool.

该系统还包括冷却塔,所述冷却塔两端分别通过第七三通换向阀和第八三通换向阀与建筑物的风机盘管并联。通过三通换向阀的控制,升温的冷却水可以向建筑物供暖,也可以流经冷却塔降温。The system also includes a cooling tower, the two ends of the cooling tower are respectively connected in parallel with the fan coil of the building through the seventh three-way reversing valve and the eighth three-way reversing valve. Through the control of the three-way reversing valve, the heated cooling water can heat the building or flow through the cooling tower to cool down.

集热系统:槽式集热器一般是以并联的形式连接在一起,通过光聚作用将照射到反光镜面上的太阳光聚焦到集热管中,集热管内流动导热油,导热油吸收热能达到高温(最高可达300℃)后进入高温储油罐。在高温储油罐中,导热油与吸收式制冷机发生器的热源水换热,提高热源水温度,驱动吸收式制冷机工作。导热油换热后温度降低,再次流入槽式集热器吸热,循环往复。Heat collection system: The trough heat collectors are generally connected together in parallel. The sunlight irradiated on the reflective mirror surface is focused into the heat collection tube through photocondensation. The heat transfer oil flows in the heat collection tube, and the heat transfer oil absorbs heat. After high temperature (up to 300°C), it enters the high temperature oil storage tank. In the high-temperature oil storage tank, the heat transfer oil exchanges heat with the heat source water of the generator of the absorption refrigerating machine, increases the temperature of the heat source water, and drives the absorption refrigerating machine to work. After heat exchange, the temperature of the heat transfer oil decreases, and it flows into the trough collector again to absorb heat, and the cycle goes on and on.

蓄热系统:相变蓄热器是一体化的相变蓄热/换热器,其内部设有两个换热器,一个是吸热换热器,一个是放热换热器。高温导热油通过吸热换热器将热量传递给相变蓄热材料,相变蓄热材料通过放热换热器将热量传递给制冷机的热源水或者建筑物的卫生热水,高温导热油不同时在相变蓄热器与高温储油罐中循环流动,由三通换向阀确定高温导热油流动路线。Heat storage system: The phase change heat storage is an integrated phase change heat storage/heat exchanger. There are two heat exchangers inside, one is a heat absorbing heat exchanger and the other is a heat releasing heat exchanger. The high-temperature heat transfer oil transfers heat to the phase-change heat storage material through the heat-absorbing heat exchanger, and the phase-change heat storage material transfers heat to the heat source water of the refrigerator or the sanitary hot water of the building through the heat release heat exchanger. It does not circulate in the phase change heat accumulator and the high-temperature oil storage tank at the same time, and the flow route of the high-temperature heat transfer oil is determined by the three-way reversing valve.

蓄冷系统:蓄冷水池是采用保温材料在地下建设的体积庞大的蓄冷系统。当需要蓄冷时,冷冻水从蒸发器出来后进入蓄冷水池蓄存。当需要调用蓄冷水时,蓄冷池出水口管道与空调末端的风机盘管连接,蓄冷水进入建筑物制冷。Cooling storage system: The cold storage pool is a bulky cold storage system constructed underground using thermal insulation materials. When cold storage is required, the chilled water comes out of the evaporator and enters the cold storage pool for storage. When the cold storage water needs to be used, the water outlet pipe of the cold storage pool is connected to the fan coil at the end of the air conditioner, and the cold storage water enters the building for cooling.

吸收式冷热联供系统:吸收式制冷机发生器的管内通有热源水,热源水在吸收式制冷机发生器和高温储油罐之间循环流动,流入吸收式制冷机发生器时放热,流入高温储油罐时吸热,循环往复。Absorption combined cooling and heating system: heat source water is passed through the pipe of the absorption refrigerator generator, and the heat source water circulates between the absorption refrigerator generator and the high-temperature oil storage tank, and releases heat when flowing into the absorption refrigerator generator , absorb heat when flowing into the high-temperature oil storage tank, and cycle back and forth.

本发明的系统运行原理:系统运行时,通过集热系统将太阳辐射能转变为导热工质(一般采用高温导热油)的热能,由换热器将导热油热能转化为热源水或被蓄存;通过蓄热系统来贮存集热器盈余的热量,在适当时候释放给制冷机或提供生活热水;通过蓄冷系统,可以保证在太阳能强度低或者无太阳辐射的时间实现连续供冷,也可以在不需供冷的季节将冷量储存起来;吸收式冷热联供系统利用高温热源水进行制冷,同时通过冷却水的排热作用提高冷却水温度,将排出的冷却水作供暖之用,从而实现冷热联供。The operating principle of the system of the present invention: when the system is running, the solar radiation energy is converted into the heat energy of the heat-conducting working medium (generally high-temperature heat-conducting oil) through the heat-collecting system, and the heat energy of the heat-conducting oil is converted into heat source water or stored by the heat exchanger ; Use the heat storage system to store the surplus heat of the collector, and release it to the refrigerator or provide domestic hot water at an appropriate time; through the cold storage system, it can ensure continuous cooling when the solar intensity is low or there is no solar radiation, and it can also Store the cooling capacity in the season when no cooling is needed; the absorption combined cooling and heating system uses high-temperature heat source water for cooling, and at the same time increases the temperature of the cooling water through the heat dissipation of the cooling water, and uses the discharged cooling water for heating. Thereby realizing combined cooling and heating.

本发明与现有技术相比,具有如下优点:本发明所设计的太阳能空调联供系统具有集热温度高、蓄放热速率快,全年工作稳定、制冷供热效率高的特点。本发明采用低成本的轻质有机材料开发槽式集热装置、高效紧凑式蓄热-换热交换器,获得稳定的中高温热源,驱动溴化锂吸收式制冷机制冷,提供稳定的冷、热负荷供给建筑物,并利用地下蓄冷水池对冷冻水进行蓄存。夏季建筑物需要制冷时,集热器吸收太阳能作为制冷机的驱动热源,并依靠相变蓄热器进行热量调节,稳定输出热源水的温度,保证制冷机稳定工作。当无太阳辐射时,利用地下蓄水池所蓄冷冻水进行供冷。春秋季建筑物不需要冷量供应时,吸收式制冷机仍然工作,制取冷冻水存入地下蓄冷水池,冬季制冷机工作时,不仅可以蓄存冷冻水,还可以将冷却水加热后送入空调末端的风机盘管,给建筑物供暖,实现全年太阳能的集约高效利用Compared with the prior art, the present invention has the following advantages: the solar air-conditioning cogeneration system designed by the present invention has the characteristics of high heat collection temperature, fast heat storage and release rate, stable work throughout the year, and high cooling and heating efficiency. The invention uses low-cost light organic materials to develop trough-type heat collectors and high-efficiency compact heat storage-heat exchange exchangers to obtain stable medium-high temperature heat sources, drive lithium bromide absorption refrigerators for refrigeration, and provide stable cooling and heating loads Supply buildings and store chilled water in underground cold storage tanks. When the building needs to be cooled in summer, the collector absorbs solar energy as the driving heat source of the refrigerator, and relies on the phase change heat accumulator to regulate the heat, stably output the temperature of the heat source water, and ensure the stable operation of the refrigerator. When there is no solar radiation, the frozen water stored in the underground reservoir is used for cooling. When the building does not need cold supply in spring and autumn, the absorption chiller still works to produce chilled water and store it in the underground cold storage pool. When the chiller works in winter, it can not only store chilled water, but also heat the cooling water and send it The fan coil unit at the end of the air conditioner provides heating to the building and realizes the intensive and efficient use of solar energy throughout the year

附图说明Description of drawings

图1为为本发明系统组成示意图。Fig. 1 is a schematic diagram of the composition of the system of the present invention.

具体实施方式Detailed ways

下面结合附图和具体实施方式对本发明的内容做进一步详细说明。The content of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

实施例:Example:

请参阅图1所示,一种太阳能跨季节冷热联供空调系统,包括集热系统、蓄热系统、吸收式冷热联供系统和蓄冷系统,所述集热系统包括槽式集热器2和高温储油罐5,蓄热系统包括相变蓄热器1,吸收式冷热联供系统包括发生器6、吸收器10、蒸发器12、冷凝器13、溶液换热器9和节流阀14,蓄冷系统包括蓄冷水池11;槽式集热器2以并联的形式连接,槽式集热器2的两端通过第一三通换向阀3和第二三通换向阀4分别与高温储油罐5连接,高温储油罐5还通过第三三通换向阀7和第四三通换向阀8分别与发生器6连接;相变蓄热器1两端通过第二三通换向阀4和第一三通换向阀3与高温储油罐5并联;Please refer to Figure 1, a solar inter-season combined cooling and heating air conditioning system, including a heat collection system, a heat storage system, an absorption combined cooling and heating system and a cold storage system, and the heat collection system includes a trough collector 2 and a high-temperature oil storage tank 5, the heat storage system includes a phase change heat accumulator 1, and the absorption combined cooling and heating system includes a generator 6, an absorber 10, an evaporator 12, a condenser 13, a solution heat exchanger 9 and a section Flow valve 14, the cold storage system includes a cold storage pool 11; the trough collectors 2 are connected in parallel, and the two ends of the trough collectors 2 pass through the first three-way reversing valve 3 and the second three-way reversing valve 4 They are respectively connected to the high-temperature oil storage tank 5, and the high-temperature oil storage tank 5 is also connected to the generator 6 respectively through the third three-way reversing valve 7 and the fourth three-way reversing valve 8; The second three-way reversing valve 4 and the first three-way reversing valve 3 are connected in parallel with the high-temperature oil storage tank 5;

发生器6和冷凝器13设置在一个真空密封罐内,吸收器10和蒸发器12设置在另一个真空密封罐内,两个真空密封罐之间分别通过溶液换热器9和节流阀14连接,蓄冷水池11进出口通过第五三通换向阀15和第六三通换向阀16与蒸发器12的冷冻水管连接,蓄冷水池11出水口管道还通过第五三通换向阀15与空调末端的风机盘管17连接。The generator 6 and the condenser 13 are arranged in one vacuum-sealed tank, the absorber 10 and the evaporator 12 are arranged in another vacuum-sealed tank, and the solution heat exchanger 9 and the throttling valve 14 are respectively passed between the two vacuum-sealed tanks The inlet and outlet of the cold storage pool 11 are connected to the chilled water pipe of the evaporator 12 through the fifth three-way reversing valve 15 and the sixth three-way reversing valve 16, and the outlet pipe of the cold storage water pool 11 also passes through the fifth three-way reversing valve 15 Connect with the fan coil unit 17 at the end of the air conditioner.

还包括冷却塔20,冷却塔20两端分别通过第七三通换向阀21和第八三通换向阀22与建筑物的风机盘管17并联。It also includes a cooling tower 20, the two ends of the cooling tower 20 are respectively connected in parallel with the fan coil 17 of the building through the seventh three-way reversing valve 21 and the eighth three-way reversing valve 22.

以下分别按夏季、春秋季、冬季的系统运行进行说明:The following describes the system operation in summer, spring and autumn, and winter:

夏季:槽式集热器2聚焦太阳光到集热管上,高温导热油在集热管和高温储油罐5中循环流动,不断被太阳热辐射加热升温,达到设定温度范围的下限值后,打开第三三通换向阀7和第四三通换向阀8,使制冷机发生器6中循环流动的热源水与高温导热油在储油罐中进行换热,热源水升温到一定温度后即可驱动制冷机开始制冷。当高温导热油温度超过所设定温度范围的上限值后,第一换向阀3,第二换向阀4开始换向,高温导热油不再流入储油罐,而是进入相变蓄热器1,在相变蓄热器1中与相变材料发生换热,将热量传递给相变材料,从而使热量贮存在相变蓄热器1中。当相变蓄热器1温度达到一定值后,可通过改变第三三通换向阀7和第四三通换向阀8,使制冷机发生器6中循环流动的热源水与相变蓄热器1进行换热,实现相变蓄热器1在无太阳辐射时也可驱动制冷机制冷,不会因太阳辐射不足而无法使制冷机稳定工作。同时,通过开关第一截止阀18和第二截止阀19,实现对外提供卫生热水。Summer: The trough collector 2 focuses sunlight onto the heat collecting tube, and the high-temperature heat-conducting oil circulates in the heat collecting tube and the high-temperature oil storage tank 5, and is continuously heated by solar heat radiation to reach the lower limit of the set temperature range , open the third three-way reversing valve 7 and the fourth three-way reversing valve 8, so that the heat source water circulating in the refrigerator generator 6 and the high-temperature heat transfer oil exchange heat in the oil storage tank, and the temperature of the heat source water rises to a certain level. After the temperature is reached, the refrigerator can be driven to start cooling. When the temperature of the high-temperature heat transfer oil exceeds the upper limit of the set temperature range, the first reversing valve 3 and the second reversing valve 4 start to change directions, and the high-temperature heat transfer oil no longer flows into the oil storage tank, but enters the phase change storage tank. Heater 1 exchanges heat with phase change material in phase change heat accumulator 1 , and transfers heat to phase change material so that heat is stored in phase change heat accumulator 1 . When the temperature of the phase change heat accumulator 1 reaches a certain value, by changing the third three-way reversing valve 7 and the fourth three-way reversing valve 8, the heat source water circulating in the refrigerator generator 6 and the phase change storage The heat exchanger 1 performs heat exchange to realize that the phase change heat accumulator 1 can also drive the refrigerator to cool when there is no solar radiation, and the refrigerator will not be unable to work stably due to insufficient solar radiation. At the same time, by switching the first shut-off valve 18 and the second shut-off valve 19, external sanitary hot water is provided.

春秋季:春秋季建筑物一般不需要供冷,但为了充分利用太阳能,也照常运行制冷机,其集热过程与蓄热过程与上述说明相同。通过改变第五三通换向阀15和第六三通换向阀16,使制取的冷冻水不再进入建筑物的风机盘管17,而是进入地下蓄冷水池11,冷冻水在地下蓄冷水池11和制冷机蒸发器12中循环往复,不断降温,实现储存冷冻水的目的。当夏季长时间没有太阳光辐射时,通过改变第五三通换向阀15和第六三通换向阀16,使地下蓄冷水池11中蓄存的冷冻水进入建筑物的风机盘管17,实现系统的稳定供冷。Spring and autumn: Buildings generally do not need cooling in spring and autumn, but in order to make full use of solar energy, refrigerators are also operated as usual, and the heat collection and storage processes are the same as the above description. By changing the fifth three-way reversing valve 15 and the sixth three-way reversing valve 16, the produced chilled water no longer enters the fan coil unit 17 of the building, but enters the underground cold storage pool 11, and the chilled water is stored underground The water pool 11 and the refrigerator evaporator 12 circulate back and forth to continuously cool down, so as to realize the purpose of storing frozen water. When there is no sunlight radiation for a long time in summer, by changing the fifth three-way reversing valve 15 and the sixth three-way reversing valve 16, the frozen water stored in the underground cold storage pool 11 enters the fan coil unit 17 of the building, Realize the stable cooling of the system.

冬季:冬季建筑物也不需要供冷,为了充分利用太阳能,并利用吸收式制冷机实现供暖的目的,照常开动制冷机,其集热过程、蓄热过程、蓄冷过程与上述说明相同,不再累述,本段重点介绍供暖过程。热源水在制冷机的发生器6中循环放热,冷冻水在蒸发器12中循环放热,冷却水在吸收器10和冷凝器13中串联循环吸热,使冷却水温度逐渐升高。夏季时冷却水经冷却塔20冷却后进入吸收器,冬季时改变第七三通换向阀21和第八三通换向阀22使冷却水不再进入冷却塔20,而是将升温后的冷却水作为供暖水进入建筑物的风机盘管17,为建筑物供暖。散热降温后的冷却水流过第八三通换向阀22,进入吸收器10,开始下一个供暖循环。Winter: Buildings do not need cooling in winter. In order to make full use of solar energy and use absorption refrigerators to achieve heating purposes, the refrigerators are turned on as usual. The heat collection process, heat storage process, and cold storage process are the same as the above descriptions. Tired, this paragraph focuses on the heating process. The heat source water circulates and releases heat in the generator 6 of the refrigerator, the chilled water circulates and releases heat in the evaporator 12, and the cooling water circulates in series in the absorber 10 and condenser 13 to absorb heat, so that the temperature of the cooling water increases gradually. In summer, the cooling water enters the absorber after being cooled by the cooling tower 20. In winter, the seventh three-way reversing valve 21 and the eighth three-way reversing valve 22 are changed so that the cooling water no longer enters the cooling tower 20, but the heated water Cooling water enters the fan coil unit 17 of the building as heating water to heat the building. The cooled cooling water flows through the eighth three-way reversing valve 22 and enters the absorber 10 to start the next heating cycle.

上列详细说明是针对本发明可行实施例的具体说明,该实施例并非用以限制本发明的专利范围,凡未脱离本发明所为的等效实施或变更,均应包含于本案的专利范围中。The above detailed description is a specific description of the feasible embodiment of the present invention. This embodiment is not used to limit the patent scope of the present invention. Any equivalent implementation or change that does not deviate from the present invention should be included in the patent scope of this case. middle.

Claims (2)

1.一种太阳能跨季节冷热联供空调系统,其特征在于:包括集热系统、蓄热系统、吸收式冷热联供系统和蓄冷系统,所述集热系统包括槽式集热器(2)和高温储油罐(5),蓄热系统包括相变蓄热器(1),吸收式冷热联供系统包括发生器(6)、吸收器(10)、蒸发器(12)、冷凝器(13)、溶液换热器(9)和节流阀(14),蓄冷系统包括蓄冷水池(11);1. A solar air-conditioning system for cross-season cooling and heating, characterized in that: it includes a heat collection system, a thermal storage system, an absorption combined cooling and heating system and a cold storage system, and the heat collection system includes a trough collector ( 2) and a high-temperature oil storage tank (5), the heat storage system includes a phase change heat accumulator (1), and the absorption combined cooling and heating system includes a generator (6), an absorber (10), an evaporator (12), Condenser (13), solution heat exchanger (9) and throttle valve (14), cold storage system includes cold storage pool (11); 槽式集热器(2)以并联的形式连接,槽式集热器(2)的两端通过第一三通换向阀(3)和第二三通换向阀(4)分别与高温储油罐(5)连接,高温储油罐(5)还通过第三三通换向阀(7)和第四三通换向阀(8)分别与发生器(6)连接;The trough collectors (2) are connected in parallel, and the two ends of the trough collectors (2) are respectively connected to the high temperature through the first three-way reversing valve (3) and the second three-way reversing valve (4). The oil storage tank (5) is connected, and the high-temperature oil storage tank (5) is also connected to the generator (6) through the third three-way reversing valve (7) and the fourth three-way reversing valve (8); 所述相变蓄热器(1)两端通过第二三通换向阀(4)和第一三通换向阀(3)与高温储油罐(5)并联;Both ends of the phase change heat accumulator (1) are connected in parallel with the high-temperature oil storage tank (5) through the second three-way reversing valve (4) and the first three-way reversing valve (3); 发生器(6)和冷凝器(13)设置在一个真空密封罐内,吸收器(10)和蒸发器(12)设置在另一个真空密封罐内,两个真空密封罐之间分别通过溶液换热器(9)和节流阀(14)连接,The generator (6) and the condenser (13) are set in a vacuum-sealed tank, the absorber (10) and the evaporator (12) are set in another vacuum-sealed tank, and the two vacuum-sealed tanks are respectively exchanged by solution The heater (9) is connected to the throttle valve (14), 蓄冷水池(11)进出口管道通过第五三通换向阀(15)和第六三通换向阀(16)分别与蒸发器(12)的冷冻水管及空调末端的风机盘管(17)连接。The inlet and outlet pipes of the cold storage pool (11) are respectively connected to the chilled water pipe of the evaporator (12) and the fan coil unit (17) at the end of the air conditioner through the fifth three-way reversing valve (15) and the sixth three-way reversing valve (16). connect. 2.根据权利要求1所述的太阳能跨季节冷热联供空调系统,其特征在于:还包括冷却塔(20),所述冷却塔(20)两端分别通过第七三通换向阀(21)和第八三通换向阀(22)与建筑物的风机盘管(17)并联。2. The air-conditioning system according to claim 1, characterized in that it also includes a cooling tower (20), and the two ends of the cooling tower (20) pass through the seventh three-way reversing valve ( 21) and the eighth three-way reversing valve (22) are connected in parallel with the fan coil unit (17) of the building.
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CN110017621A (en) * 2018-01-09 2019-07-16 吴良柏 Novel across season solar heat-preservation heat supply heating refrigeration electricity generation system
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CN109883079A (en) * 2019-03-18 2019-06-14 华南理工大学 A kind of absorption compression interactive recooling composite refrigeration system and method
CN109883079B (en) * 2019-03-18 2023-05-23 华南理工大学 Absorption compression interactive recooling compound refrigeration system and method
CN110118448A (en) * 2019-05-14 2019-08-13 湖南科技大学 Heat storage and cold accumulation type combustion gas assists solar absorption ammonium hydroxide cold supply system
CN110118448B (en) * 2019-05-14 2021-04-06 湖南科技大学 Thermal storage and cold storage gas-assisted solar energy absorption ammonia water cooling system
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CN116202157A (en) * 2023-04-06 2023-06-02 陈锦标 Solar heat collection combined phase-change energy storage efficient refrigerating and hot water central air conditioner

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