CN210892246U - Comprehensive energy system based on reversible expander - Google Patents

Comprehensive energy system based on reversible expander Download PDF

Info

Publication number
CN210892246U
CN210892246U CN201921847232.5U CN201921847232U CN210892246U CN 210892246 U CN210892246 U CN 210892246U CN 201921847232 U CN201921847232 U CN 201921847232U CN 210892246 U CN210892246 U CN 210892246U
Authority
CN
China
Prior art keywords
heat exchanger
heat
integrated
energy
reversible
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.)
Active
Application number
CN201921847232.5U
Other languages
Chinese (zh)
Inventor
蔺新星
尹立坤
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.)
China Three Gorges Corp
Original Assignee
China Three Gorges Corp
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 China Three Gorges Corp filed Critical China Three Gorges Corp
Priority to CN201921847232.5U priority Critical patent/CN210892246U/en
Application granted granted Critical
Publication of CN210892246U publication Critical patent/CN210892246U/en
Priority to DE202020105986.6U priority patent/DE202020105986U1/en
Priority to JP2020004576U priority patent/JP3230102U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/185—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using waste heat from outside the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
    • F03G6/005—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/071—Devices for producing mechanical power from solar energy with energy storage devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V50/00—Use of heat from natural sources, e.g. from the sea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

本实用新型公开了一种基于可逆膨胀机的综合能源系统，它包括太阳能集热器和燃气辅热器构成的热源系统；所述热源系统与内部带有多组换热器的储冷、储热一体化装置并联，所述储冷、储热一体化装置同时与第一换热器并联，所述第一换热器通过可逆膨胀机与第二换热器相串联，在第一换热器和第二换热器串联回路上安装有膨胀阀和工质泵，并共同构成的有机朗肯循环发电‑热泵一体化机组；所述第二换热器与地埋管换热器和辐射换热器相连；还包括控制系统。结合一体化储冷、储热装置构成的综合能源系统，来实现太阳能、浅层地热能、电能的综合高效利用的目的。

Figure 201921847232

The utility model discloses a comprehensive energy system based on a reversible expander, which comprises a heat source system composed of a solar collector and a gas auxiliary heat exchanger; The heat integration device is connected in parallel, the cold storage and heat storage integration device is connected in parallel with the first heat exchanger at the same time, and the first heat exchanger is connected in series with the second heat exchanger through the reversible expander. An expansion valve and a working fluid pump are installed on the series circuit of the heat exchanger and the second heat exchanger, which together constitute an organic Rankine cycle power generation-heat pump integrated unit; the second heat exchanger is connected with the buried pipe heat exchanger and the radiation The heat exchanger is connected; also includes the control system. Combined with a comprehensive energy system composed of integrated cold storage and heat storage devices, the purpose of comprehensive and efficient utilization of solar energy, shallow geothermal energy and electric energy is realized.

Figure 201921847232

Description

一种基于可逆膨胀机的综合能源系统An integrated energy system based on a reversible expander

技术领域technical field

本实用新型涉及综合供能领域的一种能源系统，特别涉及一种基于可逆膨胀机的，以太阳能、天然气、浅层地热（地表水、空气）和电源为能源的冷、热、电综合供应的能源系统。The utility model relates to an energy system in the field of comprehensive energy supply, in particular to an integrated supply of cold, heat and electricity based on a reversible expander and using solar energy, natural gas, shallow geothermal heat (surface water, air) and power sources as energy sources energy system.

背景技术Background technique

能源问题一直是限制社会发展的重要因素，随着人类社会对自然资源的不断攫取，自然系统的耐受能力已逼近极限，随之而来的环境问题已成为发展过程中必要的考量因素。发展可再生能源、提高能源系统综合效率是现阶段全人类社会的共识。太阳能、风能为代表的可再生能源有不稳定性和特殊的周期性的特征，如何提供一种稳定的供能方式，甚至主动调节消纳这部分不稳定电力，综合能源供能系统应运而生。综合能源系统一般以小区和园区为单位，主要包含发电、供冷、供热和储能等要素。Energy issues have always been an important factor restricting social development. With the continuous grab of natural resources by human society, the tolerance of natural systems has approached the limit, and the ensuing environmental issues have become a necessary consideration in the development process. It is the consensus of all human society at this stage to develop renewable energy and improve the overall efficiency of the energy system. Renewable energy represented by solar energy and wind energy has the characteristics of instability and special periodicity. How to provide a stable energy supply method, and even actively adjust and absorb this part of unstable electricity, the integrated energy energy supply system came into being . The integrated energy system is generally based on residential areas and parks, and mainly includes elements such as power generation, cooling, heating and energy storage.

有机工质在常温区间可通过加热对膨胀机进行做功输出动力进而发电，又可通过压缩循环在环境温度两侧提供一个稳定的温差实现制冷或制热。前者可以构建以中低温热能为热源的动力循环，例如太阳能驱动的有机朗肯循环发电系统（Solar-ORC EnergyPlant），其优势在于对于利用不稳定热源时可以通过储热装置将热能进行时空上的转移，其成本远低于储电；而后者可以构建通过电力驱动的，以自然环境（地表水、地热、室外空气等）为热源的热泵系统（Heat Pump），其优势在于利用能源主要以可再生能源为主若提供储热装置，就可以实现电力的时空转换，进而主动配合电网输出，调蓄过余电力。二者是综合能源系统中的重要角色。In the normal temperature range, the organic working medium can perform work and output power to the expander by heating to generate electricity, and can provide a stable temperature difference between the two sides of the ambient temperature through the compression cycle to achieve cooling or heating. The former can build a power cycle with medium and low temperature heat energy as the heat source, such as a solar-driven organic Rankine cycle power generation system (Solar-ORC EnergyPlant). The cost of transfer is much lower than that of electricity storage; the latter can build a heat pump system (Heat Pump) driven by electricity and using the natural environment (surface water, geothermal, outdoor air, etc.) as the heat source. If a heat storage device is provided as the main source of renewable energy, the time-space conversion of power can be realized, and then it can actively cooperate with the output of the grid to adjust and store excess power. Both are important roles in the integrated energy system.

为实现能源的调蓄，储能装置必不可少，现阶段应用于综合能源系统中的储能手段主要有储冷、储热、储电和惯性储能等技术。其中储电成本高，惯性储能应用有诸多限制因素，而储冷、储热因为技术成熟可靠，被较为广泛的认可与应用。为进一步提高可再生能源利用率，提出了基于可逆膨胀机（压缩机），以太阳能、天然气、浅层地热（地表水、空气）和电源为能源的且含有储能的冷、热、电综合供应的能源系统。In order to realize energy regulation and storage, energy storage devices are indispensable. At this stage, the energy storage methods used in integrated energy systems mainly include cold storage, heat storage, electricity storage and inertial energy storage technologies. Among them, the cost of electricity storage is high, and the application of inertial energy storage has many limitations, while cold storage and heat storage are widely recognized and applied because of their mature and reliable technologies. In order to further improve the utilization rate of renewable energy, a cold, heat and electricity integrated system with energy storage is proposed based on a reversible expander (compressor), which uses solar energy, natural gas, shallow geothermal (surface water, air) and power sources as energy sources. supplied energy system.

实用新型内容Utility model content

本实用新型是基于可逆膨胀机构建有机工质发电和热泵的一体化循环装置，结合一体化储冷、储热装置构成的综合能源系统，来实现太阳能、浅层地热能、电能的综合高效利用的目的。The utility model is based on the reversible expander to construct an integrated circulation device of organic working fluid power generation and heat pump, combined with an integrated energy system composed of integrated cold storage and heat storage devices, to realize the comprehensive and efficient utilization of solar energy, shallow geothermal energy and electric energy the goal of.

为了实现上述的技术特征，本实用新型的目的是这样实现的：一种基于可逆膨胀机的综合能源系统，它包括太阳能集热器和燃气辅热器构成的热源系统；所述热源系统与内部带有多组换热器的储冷、储热一体化装置并联，所述储冷、储热一体化装置同时与第一换热器并联，所述第一换热器通过可逆膨胀机与第二换热器相串联，在第一换热器和第二换热器串联回路上安装有膨胀阀和工质泵，并共同构成的有机朗肯循环发电-热泵一体化机组；所述第二换热器与地埋管换热器和辐射换热器相连；还包括控制系统。In order to achieve the above-mentioned technical features, the purpose of the present utility model is achieved as follows: a comprehensive energy system based on a reversible expander, which includes a heat source system composed of a solar collector and a gas auxiliary heat heater; the heat source system and the internal The integrated cold storage and heat storage device with multiple sets of heat exchangers is connected in parallel, and the integrated cold storage and heat storage device is connected in parallel with the first heat exchanger at the same time, and the first heat exchanger is connected to the second heat exchanger through the reversible expander. Two heat exchangers are connected in series, and an expansion valve and a working fluid pump are installed on the series circuit of the first heat exchanger and the second heat exchanger, which together constitute an organic Rankine cycle power generation-heat pump integrated unit; The heat exchanger is connected with the buried pipe heat exchanger and the radiant heat exchanger; it also includes a control system.

所述储冷、储热一体化装置内部设置有第一内部换热器、第二内部换热器和第三内部换热器；所述第一内部换热器与热源系统构成串联系统；所述第二内部换热器与辐射换热器相连并向建筑供冷或热，所述第三内部换热器与第一换热器相连用于储冷或热。The integrated cold storage and heat storage device is provided with a first internal heat exchanger, a second internal heat exchanger and a third internal heat exchanger; the first internal heat exchanger and the heat source system form a series system; The second internal heat exchanger is connected to the radiant heat exchanger and supplies cooling or heat to the building, and the third internal heat exchanger is connected to the first heat exchanger for storing cold or heat.

所述太阳能集热器采用槽式或者碟式，太阳能集热器及其旁通与燃气辅热器及其旁通相串连，与储冷、储热一体化装置的第一内部换热器、第一换热器、第二换热器、地埋管换热器和辐射换热器构成的并联系统串联，具体连通方式根据运行模式而定。The solar heat collector adopts a trough type or a dish type. The solar heat collector and its bypass are connected in series with the gas auxiliary heat exchanger and its bypass, and are connected with the first internal heat exchanger of the integrated cold storage and heat storage device. , The parallel system composed of the first heat exchanger, the second heat exchanger, the buried tube heat exchanger and the radiant heat exchanger are connected in series, and the specific connection mode is determined according to the operation mode.

所述可逆膨胀机可实现膨胀输出功，也可在动力输入时完成对工质压缩，可逆膨胀机在热泵工况下其两端的四通换向系统可以令所需蒸发器、冷凝器换向，以实现制冷、制热工况的切换。The reversible expander can realize the expansion output work, and can also complete the compression of the working medium when the power is input. , in order to realize the switching between cooling and heating conditions.

所述地埋管换热器可以在供热周期内为系统提供低品位热，当进入非供热季或供热季太阳能富余则作为可再生能源的储热容器。The buried tube heat exchanger can provide low-grade heat for the system during the heating period, and can be used as a heat storage container for renewable energy when entering the non-heating season or the solar energy surplus in the heating season.

本实用新型有如下有益效果：The utility model has the following beneficial effects:

1、本实用新型所述可逆膨胀机可以作为膨胀机实现膨胀输出功；和作为压缩机通过电力输入压缩循环工质。1. The reversible expander of the present utility model can be used as an expander to realize expansion output work; and as a compressor, it can input a compression cycle working fluid through electricity.

2、本实用新型以太阳能、天然气、浅层地热（地表水、空气）和电源为能源输入，带储冷、储热一体化装置和土壤储能两种形式，供能形式为供冷、供暖和供电。通过管路、部件作用和循环方向的变换来实现多种运行方式和能源的综合利用。2. The utility model uses solar energy, natural gas, shallow geothermal heat (surface water, air) and power supply as energy input, and has two forms of cold storage, heat storage integrated device and soil energy storage, and the energy supply form is cooling and heating. and power supply. The comprehensive utilization of various operation modes and energy can be realized by changing the functions of pipelines, components and circulation directions.

3、本实用新型在工况模式一，该模式适应场景为太阳资源极其良好或建筑冷负荷较低时太阳能过余，太阳能通过朗肯循环先发电其余热用于供热，太阳能的过余部分储存在储冷、储热一体化装置吸纳不了部分排入土壤。3. The utility model is in working condition mode 1. This mode adapts to the scenario that the solar energy is excessive when the solar resource is extremely good or the building cooling load is low. Stored in the integrated cold storage and heat storage device can not absorb part of the discharge into the soil.

4、本实用新型在工况模式二，该模式适应场景为太阳资源减弱但是依然可以满足建筑冷负荷时，考虑到太阳本身及建筑负荷的波动特性，通过用燃气系统对太阳能进行补充，二者直接推动朗肯循环发电余热用于供热。4. The utility model is in working condition mode 2, which adapts to the scenario where the solar resource is weakened but the cooling load of the building can still be met. Considering the fluctuation characteristics of the sun itself and the building load, the solar energy is supplemented by the gas system. Directly promote the waste heat of Rankine cycle power generation for heating.

5、本实用新型在工况模式三，该模式适应场景为太阳资源减弱无法实现储热或无法满足建筑冷负荷时，利用储冷、储热一体化装置内储存的热量为推动朗肯循环发电余热用于供热。5. The utility model is in working condition mode 3. This mode adapts to the scenario that when the solar resource is weakened and the heat storage cannot be realized or the building cooling load cannot be met, the heat stored in the integrated cooling and heat storage device is used to promote the Rankine cycle power generation. The waste heat is used for heating.

6、本实用新型在工况模式四，该模式适应场景为夜间较为恶劣的气象条件建筑冷负荷时较高时；储冷、储热一体化装置直接为建筑进行供暖，若出热量不足则开启电力输入朗肯循环逆转进入热泵循环，从土壤中提热平排入储冷、储热一体化装置，必要时开启燃气辅热同时向储冷、储热一体化装置补热，其中热泵循环可通过变频主动配合电网波动。6. The utility model is in working condition mode 4. This mode adapts to the scene when the cold load of the building is relatively high at night with relatively bad weather conditions; the integrated cold storage and heat storage device directly heats the building, and is turned on if the heat output is insufficient. The power input Rankine cycle is reversed into the heat pump cycle, and the heat is extracted from the soil and discharged into the integrated cooling and heat storage device. When necessary, the gas auxiliary heat is turned on and the heat is supplemented to the integrated cooling and heat storage device. The heat pump cycle can Actively cooperate with grid fluctuations through frequency conversion.

7、本实用新型在工况模式五，该模式适应场景为建筑供冷情况，所述热泵循环中压缩机两侧四通换向装置开启，电力输入冷量从土壤中提取并输入储冷、储热一体化装置并通过储冷、储热一体化装置为建筑供冷，其中通过变频主动配合电网波动。7. The utility model is in working condition mode 5. This mode adapts to the situation of building cooling. In the heat pump cycle, the four-way reversing devices on both sides of the compressor are turned on, and the power input cooling capacity is extracted from the soil and input into the cold storage, The integrated heat storage device provides cooling for the building through the integrated cold storage and heat storage device, in which the frequency conversion is used to actively cooperate with the fluctuation of the power grid.

8、本实用新型在工况模式六，该模式适应场景为过度季节利用太阳能发电并向土壤内部储热，需考虑太阳本身及建筑负荷的波动特性。此时太阳能向储冷、储热一体化装置中储热并通过储冷、储热一体化装置推动朗肯循环发电，余热通过地埋管换热排入土壤进行跨季节储热；太阳过余部分可并行排入地下进行跨季节储热，同样通过朗肯循环与储冷、储热一体化装置调节向电网出力。8. The utility model is in working condition mode 6. This mode adapts to the scenario of using solar energy to generate electricity and storing heat in the soil in excessive seasons, and the fluctuation characteristics of the sun itself and the building load need to be considered. At this time, solar energy stores heat in the integrated cold storage and heat storage device, and promotes Rankine cycle power generation through the integrated cold storage and heat storage device. Part of it can be discharged into the ground in parallel for cross-season heat storage, and the output to the power grid is also adjusted through the Rankine cycle and the integrated cooling and heat storage device.

9、本实用新型所述可逆膨胀机及其循环，可通过调节可逆膨胀机供能实现朗肯循环和热泵循环的切换，通过四通换向装置实现热泵循环的制冷、制热过程切换。9. The reversible expander and its cycle of the present utility model can realize the switching between the Rankine cycle and the heat pump cycle by adjusting the energy supply of the reversible expander, and realize the switching between the cooling and heating processes of the heat pump cycle through the four-way reversing device.

附图说明Description of drawings

下面结合附图和实施例对本实用新型作进一步说明。The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

图1本实用新型综合能源系统示意图。Figure 1 is a schematic diagram of the comprehensive energy system of the present invention.

图2本实用新型实施例的综合能源系统供热工况模式一示意图。FIG. 2 is a schematic diagram of a heating working mode mode of an integrated energy system according to an embodiment of the present invention.

图3本实用新型实施例的综合能源系统供热工况模式二示意图。FIG. 3 is a schematic diagram of the second heating mode of the integrated energy system according to the embodiment of the present invention.

图4本实用新型实施例的综合能源系统供热工况模式三示意图。FIG. 4 is a schematic diagram of a third schematic diagram of a heating working mode of an integrated energy system according to an embodiment of the present invention.

图5本实用新型实施例的综合能源系统供热工况模式四示意图。FIG. 5 is a schematic diagram of a fourth schematic diagram of a heating working mode of an integrated energy system according to an embodiment of the present invention.

图6本实用新型实施例的综合能源系统供冷工况模式五示意图。FIG. 6 is a schematic diagram of the fifth schematic diagram of the cooling mode of the integrated energy system according to the embodiment of the present invention.

图7本实用新型实施例的综合能源系统发电工况模式六示意图。7 is a schematic diagram of a sixth schematic diagram of a power generation working mode of an integrated energy system according to an embodiment of the present invention.

图8本实用新型发电/热泵循环发电循环示意图。Figure 8 is a schematic diagram of the power generation/heat pump cycle power generation cycle of the present invention.

图9本实用新型发电/热泵循环发热泵（供热）循环示意图。9 is a schematic diagram of the power generation/heat pump cycle heat pump (heat supply) cycle of the present invention.

图10本实用新型发电/热泵循环发热泵（制冷）循环示意图。Figure 10 is a schematic diagram of the power generation/heat pump cycle heat pump (refrigeration) cycle of the present invention.

图中：可逆膨胀机1、第一换热器2、第二换热器3、膨胀阀4、工质泵5、储冷、储热一体化装置6、辐射换热器7、太阳能集热器8、地埋管换热器9、燃气辅热器10、第一内部换热器11、第二内部换热器12、第三内部换热器13、控制系统14。In the figure: reversible expander 1, first heat exchanger 2, second heat exchanger 3, expansion valve 4, working fluid pump 5, integrated cooling and heat storage device 6, radiation heat exchanger 7, solar heat collector 8 , buried pipe heat exchanger 9 , gas auxiliary heat exchanger 10 , first internal heat exchanger 11 , second internal heat exchanger 12 , third internal heat exchanger 13 , and control system 14 .

具体实施方式Detailed ways

下面结合附图对本实用新型的实施方式做进一步的说明。The embodiments of the present utility model will be further described below with reference to the accompanying drawings.

实施例1：Example 1:

请参阅图1-10，一种基于可逆膨胀机的综合能源系统，它包括太阳能集热器8和燃气辅热器10构成的热源系统；所述热源系统与内部带有多组换热器的储冷、储热一体化装置6并联，所述储冷、储热一体化装置6同时与第一换热器2并联，所述第一换热器2通过可逆膨胀机1与第二换热器3相串联，在第一换热器2和第二换热器3串联回路上安装有膨胀阀4和工质泵5，并共同构成的有机朗肯循环发电-热泵一体化机组；所述第二换热器3与地埋管换热器9和辐射换热器7相连；还包括控制系统14。Please refer to Fig. 1-10, an integrated energy system based on a reversible expander, which includes a heat source system composed of a solar collector 8 and a gas auxiliary heat exchanger 10; The integrated cold storage and heat storage device 6 is connected in parallel, and the integrated cold storage and heat storage device 6 is connected in parallel with the first heat exchanger 2 at the same time, and the first heat exchanger 2 exchanges heat with the second heat exchanger through the reversible expander 1 The first heat exchanger 2 and the second heat exchanger 3 are connected in series, and the expansion valve 4 and the working fluid pump 5 are installed on the series circuit of the first heat exchanger 2 and the second heat exchanger 3, and together form an organic Rankine cycle power generation-heat pump integrated unit; The second heat exchanger 3 is connected with the buried pipe heat exchanger 9 and the radiant heat exchanger 7 ; it also includes a control system 14 .

进一步的，所述储冷、储热一体化装置6内部设置有第一内部换热器11、第二内部换热器12和第三内部换热器13；所述第一内部换热器11与热源系统构成串联系统；所述第二内部换热器12与辐射换热器7相连并向建筑供冷或热，所述第三内部换热器13与第一换热器2相连用于储冷或热。Further, a first internal heat exchanger 11 , a second internal heat exchanger 12 and a third internal heat exchanger 13 are arranged inside the integrated cold storage and heat storage device 6 ; the first internal heat exchanger 11 A series system is formed with the heat source system; the second internal heat exchanger 12 is connected with the radiant heat exchanger 7 and supplies cooling or heat to the building, and the third internal heat exchanger 13 is connected with the first heat exchanger 2 for Store cold or hot.

进一步的，所述太阳能集热器8采用槽式或者碟式，太阳能集热器8及其旁通与燃气辅热器10及其旁通相串连，与储冷、储热一体化装置6的第一内部换热器11、第一换热器2、第二换热器3、地埋管换热器9和辐射换热器7构成的并联系统串联，具体连通方式根据运行模式而定。Further, the solar collector 8 adopts a trough type or a dish type, and the solar collector 8 and its bypass are connected in series with the gas auxiliary heater 10 and its bypass, and are connected with the integrated cooling and heat storage device 6 . The parallel system composed of the first internal heat exchanger 11, the first heat exchanger 2, the second heat exchanger 3, the buried tube heat exchanger 9 and the radiant heat exchanger 7 is connected in series, and the specific connection mode depends on the operation mode. .

进一步的，所述可逆膨胀机1可实现膨胀输出功，也可在动力输入时完成对工质压缩，可逆膨胀机1在热泵工况下其两端的四通换向系统可以令所需蒸发器、冷凝器换向，以实现制冷、制热工况的切换。Further, the reversible expander 1 can realize the expansion output work, and can also complete the compression of the working medium when the power is input. , Condenser commutation, in order to realize the switching of cooling and heating conditions.

进一步的，所述地埋管换热器9可以在供热周期内为系统提供低品位热，当进入非供热季或供热季太阳能富余则作为可再生能源的储热容器。Further, the buried tube heat exchanger 9 can provide low-grade heat for the system during the heating period, and can be used as a heat storage container for renewable energy when entering the non-heating season or the solar energy surplus in the heating season.

实施例2：Example 2:

如图2，所述基于可逆膨胀机的综合能源系统的运行方法，当太阳资源良好，或建筑冷负荷较低时，为工作模式一：As shown in Figure 2, the operation method of the integrated energy system based on the reversible expander, when the solar resources are good or the cooling load of the building is low, it is the working mode 1:

此时太阳能集热器8可同时满足辐射换热器7对建筑采暖的需求以及储冷、储热一体化装置6的储热需求；剩余部分通过地埋管换热器9向土壤中储存热量；根据以上所述，太阳能集热器8作为工作模式一的全部热源，其出口分别接至一体化储热、储冷装置6中第一内部换热器11进口，以及第一换热器2外部循环的进口处；太阳能集热器8进口分别接至储冷、储热一体化装置6中第一内部换热器11出口，以第一换热器2外部循环的出口处；此时太阳能集热器8为第一内部换热器11的储热过程，和由第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成的动力循环进行供热，并实现发电并网；此时第二换热器3外循环带走的余热，进行辐射换热器7的建筑供热过程和地埋管换热器9土壤储热过程；此时，第二换热器3外循环出口分别接于辐射换热器7和地埋管换热器9进口；第二换热器3外循环进口分别与辐射换热器7和地埋管换热器9进口的出口相连；此模式是由控制系统14判断并控制阀门、管路的连接，并以建筑采暖先于储冷、储热一体化装置6储热，先于土壤储热这一优先级进行实施。At this time, the solar heat collector 8 can simultaneously meet the needs of the radiant heat exchanger 7 for building heating and the heat storage needs of the integrated cooling and heat storage device 6; the remaining part stores heat into the soil through the buried pipe heat exchanger 9 ; According to the above, the solar collector 8 is used as all the heat sources of the working mode one, and its outlets are respectively connected to the inlet of the first internal heat exchanger 11 in the integrated heat storage and cold storage device 6, and the first heat exchanger 2 The entrance of the external circulation; the entrance of the solar collector 8 is respectively connected to the exit of the first internal heat exchanger 11 in the integrated cold storage and heat storage device 6, to the exit of the external circulation of the first heat exchanger 2; at this time, the solar energy The heat collector 8 is the heat storage process of the first internal heat exchanger 11, and the power cycle composed of the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the internal circulation of the working fluid pump 5 is used for supply. At this time, the waste heat taken away by the external circulation of the second heat exchanger 3 is used for the building heating process of the radiant heat exchanger 7 and the soil heat storage process of the buried pipe heat exchanger 9; at this time, The external circulation outlet of the second heat exchanger 3 is respectively connected to the inlet of the radiation heat exchanger 7 and the buried pipe heat exchanger 9; the external circulation inlet of the second heat exchanger 3 is connected to the radiation heat exchanger 7 and the buried pipe heat exchanger respectively. 9 The inlet and outlet are connected; in this mode, the control system 14 determines and controls the connection of valves and pipelines, and the building heating is prior to the cooling and heat storage integrated device 6 for heat storage, prior to soil heat storage. to implement.

实施例3：Example 3:

如图3，当太阳资源减弱但是依然可以满足建筑冷负荷时，需考虑太阳本身及建筑负荷的波动特性，为工作模式二：As shown in Figure 3, when the solar resource is weakened but the building cooling load can still be met, the fluctuation characteristics of the sun itself and the building load need to be considered, which is the working mode 2:

此时太阳能集热器8与燃气辅热10串联可满足辐射换热器7对建筑采暖的需求；根据以上所述，太阳能集热器8串联燃气辅热10作为工作模式二的全部热源，燃气辅热10出口接至第一换热器2外部循环的进口处；太阳能集热器8进口与第一换热器2外部循环的出口处相连；此时太阳能集热器8串联燃气辅热10为由第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成的动力循环进行供热，并实现发电并网；此时第二换热器3外循环带走的余热，进行辐射换热器7的建筑供热过程；此时，第二换热器3外循环出口接于辐射换热器7的入口处；换热器3外循环进口与辐射换热器7的出口相连；此模式是由控制器14判断并控制阀门、管路的连接和实施，其中燃气只用于保持热源的稳定性。At this time, the solar collector 8 and the gas auxiliary heat 10 can be connected in series to meet the needs of the radiant heat exchanger 7 for building heating. The outlet of the auxiliary heat 10 is connected to the inlet of the external circulation of the first heat exchanger 2; the inlet of the solar heat collector 8 is connected to the outlet of the external circulation of the first heat exchanger 2; at this time, the solar heat collector 8 is connected in series with the gas auxiliary heat 10 Provide heat for the power cycle composed of the internal circulation of the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the working fluid pump 5, and realize power generation and grid connection; The waste heat taken away by the circulation is used for the building heating process of the radiation heat exchanger 7; at this time, the outer circulation outlet of the second heat exchanger 3 is connected to the inlet of the radiation heat exchanger 7; the outer circulation inlet of the heat exchanger 3 is connected to the radiation The outlet of the heat exchanger 7 is connected; this mode is judged and controlled by the controller 14 to control the connection and implementation of valves and pipelines, in which the gas is only used to maintain the stability of the heat source.

实施例4：Example 4:

如图4，当太阳资源减弱无法实现储热或无法满足建筑冷负荷时，太阳能集热器8及燃气辅热10完全停机，为工作模式三：As shown in Figure 4, when the solar resource is weakened and cannot achieve heat storage or cannot meet the building cooling load, the solar collector 8 and the gas auxiliary heat 10 are completely shut down, which is the working mode three:

此时利用储冷、储热一体化装置6中储存的热量为建筑或者发电循环进行供热，根据以上所述，储冷、储热一体化装置6作为工作模式三的全部热源，储冷、储热一体化装置6中的第三内部换热器13出口接至第一换热器2外循环的进口处；储冷、储热一体化装置6中的第三内部换热器13进口与第一换热器2外循环的出口处相连；此时储冷、储热一体化装置6为由第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成的动力循环进行供热，并实现发电并网；此时第二换热器3外循环带走的余热结合储冷、储热一体化装置6中的第三内部换热器13带走的热量，进行辐射换热器7的建筑供热过程；此时，第二换热器3外循环出口接于辐射换热器7的入口处；第二换热器3外循环进口与辐射换热器7的出口相连，储冷、储热一体化装置6中的第二内部换热器12出口接至辐射换热器7的进口处；储冷、储热一体化装置6中的第二内部换热器12进口与辐射换热器7的出口处相连，此模式是由控制器14判断并控制阀门、管路的连接和调整储冷、储热一体化装置6中热量分配的具体实施。At this time, the heat stored in the integrated cold storage and heat storage device 6 is used to supply heat for the building or the power generation cycle. According to the above, the integrated cold storage and heat storage device 6 is used as all the heat sources in the working mode 3. The outlet of the third internal heat exchanger 13 in the integrated heat storage device 6 is connected to the inlet of the external circulation of the first heat exchanger 2; the inlet of the third internal heat exchanger 13 in the integrated cold storage and heat storage device 6 is connected to The outlet of the external circulation of the first heat exchanger 2 is connected; at this time, the integrated cold storage and heat storage device 6 is composed of the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the working fluid pump 5. The power cycle formed by the cycle provides heat and realizes power generation and grid connection; at this time, the waste heat taken by the external circulation of the second heat exchanger 3 is combined with the third internal heat exchanger 13 in the integrated cold storage and heat storage device 6 to take away At this time, the outer circulation outlet of the second heat exchanger 3 is connected to the entrance of the radiation heat exchanger 7; the outer circulation inlet of the second heat exchanger 3 is connected to the radiation exchange The outlet of the heat exchanger 7 is connected, and the outlet of the second internal heat exchanger 12 in the integrated cold storage and heat storage device 6 is connected to the inlet of the radiation heat exchanger 7; The inlet of the internal heat exchanger 12 is connected to the outlet of the radiant heat exchanger 7. This mode is the specific implementation of the controller 14 to judge and control the connection of valves and pipelines, and to adjust the heat distribution in the integrated cooling and heat storage device 6. .

实施例5：Example 5:

如图5，当夜间较为恶劣的气象条件建筑冷负荷时较高时，为工作模式四：As shown in Figure 5, when the building cooling load is higher in the relatively severe weather conditions at night, it is the working mode four:

此时利用储冷、储热一体化装置6中储存的热量为建筑进行供热，必要时开启电驱动热泵循环和燃气补热循环，根据以上所述，燃气辅热10与储冷、储热一体化装置6中第一内部换热器11串联，燃气辅热10出口与第一内部换热器11入口相连，燃气辅热10进口与第一内部换热器11出口相连，该循环可根据情况选择为储冷、储热一体化装置6进行补热；同时，第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成的动力循环进行倒转则成为由可逆膨胀机1、第一换热器2、膨胀阀4和第二换热器3构成热泵循环，必要时开启地源热泵系统为储冷、储热一体化装置6补热，其中第一换热器2外部循环进口与储冷、储热一体化装置6内第三内部换热器13出口相连；第一换热器2外部循环出口与储冷、储热一体化装置6内第三内部换热器13进口相连，第二换热器3外部循环进口与地埋管换热器9出口相连；第二换热器3外部循环出口与地埋管换热器9入口相连；储冷、储热一体化装置6内第二内部换热器12出口与辐射换热器7入口相连；第二内部换热器12进口与辐射换热器7出口相连，实现为建筑供暖，此模式是由控制器14判断并控制阀门、管路的连接和实现储冷、储热一体化装置6热量不足或电价较低时开启热泵系统进行储热联合供热，当出现极端天气开启燃气辅热进行补充。At this time, the heat stored in the integrated cooling and heat storage device 6 is used to heat the building, and the electric-driven heat pump cycle and the gas supplementary heat cycle are turned on if necessary. In the integrated device 6, the first internal heat exchangers 11 are connected in series, the outlet of the gas auxiliary heat 10 is connected to the inlet of the first internal heat exchanger 11, and the inlet of the gas auxiliary heat 10 is connected to the outlet of the first internal heat exchanger 11. The situation is selected as the integrated cooling and heat storage device 6 to supplement heat; at the same time, the power cycle formed by the internal circulation of the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the working fluid pump 5 is reversed. A heat pump cycle is formed by the reversible expander 1, the first heat exchanger 2, the expansion valve 4 and the second heat exchanger 3. If necessary, the ground source heat pump system is turned on to supplement heat for the integrated cooling and heat storage device 6. The external circulation inlet of the first heat exchanger 2 is connected to the outlet of the third internal heat exchanger 13 in the integrated cooling and heat storage device 6; The inlets of the three internal heat exchangers 13 are connected, the external circulation inlet of the second heat exchanger 3 is connected with the outlet of the buried tube heat exchanger 9; the external circulation outlet of the second heat exchanger 3 is connected with the inlet of the buried tube heat exchanger 9; The outlet of the second internal heat exchanger 12 in the integrated cooling and heat storage device 6 is connected to the inlet of the radiant heat exchanger 7; the inlet of the second internal heat exchanger 12 is connected to the outlet of the radiant heat exchanger 7 to achieve building heating. This mode The controller 14 judges and controls the connection of valves and pipelines and realizes the integration of cold storage and heat storage. 6 When the heat is insufficient or the electricity price is low, the heat pump system is turned on for heat storage and combined heating. When extreme weather occurs, the gas auxiliary heating is turned on. to supplement.

实施例6：Example 6:

如图6，当为建筑供冷情况时，为工作模式五：As shown in Figure 6, when cooling the building, it is working mode five:

此时利用储冷、储热一体化装置6中储存的冷量为建筑进行供冷，根据电价情况和冷负荷需求开启电驱动热泵循环进行储冷；根据以上所述，第一换热器2、可逆膨胀机1、第二换热器3和膨胀阀4内部循环构成热泵循环，其中压缩机两侧四通换向装置开启；适时的开启地源热泵系统为储冷、储热一体化装置6补冷，其中第一换热器2外部循环进口与储冷、储热一体化装置6内第三内部换热器13出口相连；第一换热器2外部循环出口与储冷、储热一体化装置6内第三内部换热器13进口相连；第二换热器3外部循环进口与地埋管换热器9出口相连；第二换热器3外部循环出口与地埋管换热器9入口相连，储冷、储热一体化装置6内第二内部换热器12出口与辐射换热器7入口相连；第二内部换热器12进口与辐射换热器7出口相连，实现为建筑供冷；此模式是由控制器14判断并控制阀门、管路的连接和实现储冷、储热一体化装置6冷量不足或电价较低时开启热泵系统进行储冷联合供冷。At this time, the cooling capacity stored in the integrated cooling and heat storage device 6 is used to supply cooling for the building, and the electric-driven heat pump cycle is turned on to store cooling according to the electricity price and cooling load demand; according to the above, the first heat exchanger 2 , The internal circulation of the reversible expander 1, the second heat exchanger 3 and the expansion valve 4 constitutes a heat pump cycle, in which the four-way commutation devices on both sides of the compressor are opened; the ground source heat pump system is an integrated device for cold storage and heat storage when it is opened in time. 6. Supplementary cooling, wherein the external circulation inlet of the first heat exchanger 2 is connected to the outlet of the third internal heat exchanger 13 in the integrated cold storage and heat storage device 6; the external circulation outlet of the first heat exchanger 2 is connected to the cold storage and heat storage. The inlet of the third internal heat exchanger 13 in the integrated device 6 is connected to the inlet; the external circulation inlet of the second heat exchanger 3 is connected to the outlet of the buried pipe heat exchanger 9; the external circulation outlet of the second heat exchanger 3 is connected to the buried pipe for heat exchange The outlet of the second internal heat exchanger 12 in the integrated cold storage and heat storage device 6 is connected to the inlet of the radiant heat exchanger 7; the inlet of the second internal heat exchanger 12 is connected to the outlet of the radiant heat exchanger 7 to realize Provide cooling for the building; in this mode, the controller 14 judges and controls the connection of valves and pipelines, and realizes the integrated cooling and heat storage device 6. When the cooling capacity is insufficient or the electricity price is low, the heat pump system is turned on for combined cooling and cooling.

实施例7：Example 7:

如图7，当过度季节利用太阳能发电并向土壤内部储热，需考虑太阳本身及建筑负荷的波动特性时，为工作模式六：As shown in Figure 7, when the solar energy is used to generate electricity and store heat in the soil in excessive seasons, and the fluctuation characteristics of the sun itself and the building load need to be considered, it is the working mode six:

此时太阳能集热器8作为发电循环的唯一热源，根据以上所述，太阳能集热器8出口分别接至储冷、储热一体化装置6中第一内部换热器11进口、第一换热器2外部循环的进口处、埋管换热器9进口处；太阳能集热器8进口分别与储冷、储热一体化装置6中第一内部换热器11出口、第一换热器2外部循环的出口处、埋管换热器9出口处相连，此时太阳能集热器8由第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成的动力循环进行供热、或为储冷、储热一体化装置6、或通过埋管换热器9向土壤储热，并实现发电并网，此外第二换热器3外循环的余热，也通过地埋管换热器9向土壤储热；此时，第二换热器3外循环出口接于埋管换热器9的入口处；第二换热器3外循环进口与埋管换热器9的出口相连；此模式是由控制器14判断并控制阀门、管路的连接和根据太阳能辐照强度进以先发电后对储冷、储热一体化装置6储热再向土壤储热的优先级进行，当太阳无法继续提供热量，由储冷、储热一体化装置6为发电循环提供热量。At this time, the solar collector 8 is used as the only heat source for the power generation cycle. According to the above, the outlet of the solar collector 8 is respectively connected to the inlet of the first internal heat exchanger 11 and the inlet of the first heat exchanger 11 in the integrated cooling and heat storage device 6, respectively. The inlet of the external circulation of the heat exchanger 2 and the inlet of the borehole heat exchanger 9; the inlet of the solar collector 8 is respectively connected with the outlet of the first internal heat exchanger 11 and the first heat exchanger in the integrated cold storage and heat storage device 6. 2. The outlet of the external circulation is connected to the outlet of the borehole heat exchanger 9. At this time, the solar collector 8 is internally circulated by the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the working fluid pump 5. The formed power cycle provides heat, or is an integrated device 6 for cold storage and heat storage, or stores heat to the soil through the borehole heat exchanger 9, and realizes power generation and grid connection. , and also store heat to the soil through the buried tube heat exchanger 9; at this time, the outer circulation outlet of the second heat exchanger 3 is connected to the inlet of the buried tube heat exchanger 9; the outer circulation inlet of the second heat exchanger 3 is connected to the buried tube heat exchanger 9 The outlet of the tube heat exchanger 9 is connected; in this mode, the controller 14 judges and controls the connection of valves and pipelines, and generates electricity first and then stores heat to the integrated cooling and heat storage device 6 according to the intensity of solar radiation. The priority of soil heat storage is carried out. When the sun cannot continue to provide heat, the integrated cooling and heat storage device 6 provides heat for the power generation cycle.

根据图8，供热工况模式一、模式二、模式三和模式六由第一换热器2、可逆膨胀机1、第二换热器3和工质泵5内部循环构成循环为动力循环。循环内部走有机工质，例如R245fa等，第一换热器2作为蒸发器、第二换热器3作为冷凝器。此时可逆膨胀机1作为膨胀机使用，动力系统对外做功，可用于发电并网。According to FIG. 8 , the heating mode mode 1, mode 2, mode 3 and mode 6 are composed of the internal circulation of the first heat exchanger 2, the reversible expander 1, the second heat exchanger 3 and the working fluid pump 5 as a power cycle. . An organic working medium, such as R245fa, is used inside the cycle, the first heat exchanger 2 is used as an evaporator, and the second heat exchanger 3 is used as a condenser. At this time, the reversible expander 1 is used as an expander, and the power system does external work, which can be used for power generation and grid connection.

根据图9，供热工况模式四由可逆膨胀机1、第一换热器2、膨胀阀4和第二换热器3构成热泵循环。循环内部走有机工质，例如R245fa等，第一换热器2作为冷凝器、第二换热器3作为蒸发器，此时可逆膨胀机1作为压缩机使用，通过电力的输入，将热量由低温环境泵入高温环境。According to FIG. 9 , the heat supply operation mode 4 consists of the reversible expander 1 , the first heat exchanger 2 , the expansion valve 4 and the second heat exchanger 3 to form a heat pump cycle. The organic working medium, such as R245fa, etc., is used inside the cycle. The first heat exchanger 2 is used as a condenser, and the second heat exchanger 3 is used as an evaporator. At this time, the reversible expander 1 is used as a compressor. A low temperature environment is pumped into a high temperature environment.

根据图10，供冷工况模式五由可逆膨胀机1、第二换热器3、膨胀阀4和第一换热器2构成热泵循环。循环内部走有机工质，第一换热器2作为蒸发器、第二换热器3作为冷凝器，此时可逆膨胀机1作为压缩机使用，可逆膨胀机1两侧的四通换向装置可实现管路不变，而实现蒸发器冷凝器的位置调换。通过电力的输入，将热量由低温环境泵入高温环境。According to FIG. 10 , the cooling mode 5 consists of the reversible expander 1 , the second heat exchanger 3 , the expansion valve 4 and the first heat exchanger 2 to form a heat pump cycle. The organic working medium runs inside the cycle, the first heat exchanger 2 is used as an evaporator, and the second heat exchanger 3 is used as a condenser. At this time, the reversible expander 1 is used as a compressor, and the four-way reversing device on both sides of the reversible expander 1 is used. The pipeline can be unchanged, and the position of the evaporator and condenser can be changed. Through the input of electricity, heat is pumped from the low temperature environment to the high temperature environment.

Claims (5)

1. A comprehensive energy system based on reversible expander, its characterized in that: the system comprises a heat source system consisting of a solar heat collector (8) and a gas auxiliary heat collector (10); the heat source system is connected in parallel with a cold storage and heat storage integrated device (6) with a plurality of groups of heat exchangers inside, the cold storage and heat storage integrated device (6) is connected in parallel with a first heat exchanger (2) at the same time, the first heat exchanger (2) is connected in series with a second heat exchanger (3) through a reversible expansion machine (1), an expansion valve (4) and a working medium pump (5) are installed on a series loop of the first heat exchanger (2) and the second heat exchanger (3), and an organic Rankine cycle power generation-heat pump integrated unit is formed by the expansion valve (4) and the working medium pump (5); the second heat exchanger (3) is connected with the ground heat exchanger (9) and the radiation heat exchanger (7); a control system (14) is also included.
2. The integrated energy system based on reversible expander of claim 1, wherein: a first internal heat exchanger (11), a second internal heat exchanger (12) and a third internal heat exchanger (13) are arranged in the cold storage and heat storage integrated device (6); the first internal heat exchanger (11) and a heat source system form a series system; the second internal heat exchanger (12) is connected with the radiation heat exchanger (7) and supplies cold or heat to the building, and the third internal heat exchanger (13) is connected with the first heat exchanger (2) and is used for storing cold or heat.
3. The integrated energy system based on reversible expander of claim 1, wherein: the solar heat collector (8) is of a groove type or a disc type, the solar heat collector (8) and a bypass thereof are connected with the gas auxiliary heat collector (10) and the bypass thereof in series, and are connected with a parallel system formed by the first internal heat exchanger (11), the first heat exchanger (2), the second heat exchanger (3), the buried pipe heat exchanger (9) and the radiation heat exchanger (7) of the cold storage and heat storage integrated device (6) in series, and the specific communication mode is determined according to the operation mode.
4. The integrated energy system based on reversible expander of claim 1, wherein: the reversible expansion machine (1) can realize expansion output work and can also finish working medium compression when power is input, and the four-way reversing system at the two ends of the reversible expansion machine (1) can reverse the required evaporator and condenser under the working condition of a heat pump so as to realize the switching of the refrigerating and heating working conditions.
5. The integrated energy system based on reversible expander of claim 1, wherein: the buried pipe heat exchanger (9) can provide low-grade heat for the system in a heat supply period, and when solar energy is surplus in a non-heat supply season or a heat supply season, the solar energy is used as a heat storage container of renewable energy.
CN201921847232.5U 2019-10-30 2019-10-30 Comprehensive energy system based on reversible expander Active CN210892246U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201921847232.5U CN210892246U (en) 2019-10-30 2019-10-30 Comprehensive energy system based on reversible expander
DE202020105986.6U DE202020105986U1 (en) 2019-10-30 2020-10-20 Comprehensive energy system based on a reversible expander
JP2020004576U JP3230102U (en) 2019-10-30 2020-10-23 Comprehensive energy system based on reversible expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921847232.5U CN210892246U (en) 2019-10-30 2019-10-30 Comprehensive energy system based on reversible expander

Publications (1)

Publication Number Publication Date
CN210892246U true CN210892246U (en) 2020-06-30

Family

ID=71318604

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921847232.5U Active CN210892246U (en) 2019-10-30 2019-10-30 Comprehensive energy system based on reversible expander

Country Status (3)

Country Link
JP (1) JP3230102U (en)
CN (1) CN210892246U (en)
DE (1) DE202020105986U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645732A (en) * 2019-10-30 2020-01-03 中国长江三峡集团有限公司 Comprehensive energy system based on reversible expansion machine and operation method
CN112728809A (en) * 2020-12-31 2021-04-30 新奥数能科技有限公司 Air source heat pump operation control method and device, electronic equipment and medium
CN113418353A (en) * 2021-08-23 2021-09-21 华东交通大学 Solar ORC-based medicinal material drying device and optimization decision method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115962508B (en) * 2021-12-28 2024-10-01 重庆大学 A house temperature control system based on solar energy utilization
CN114592930B (en) * 2022-03-07 2023-07-21 天津中德应用技术大学 Small-scale ORC power generation and heat pump integrated modular experimental device and method
DE102022211960A1 (en) * 2022-11-11 2024-05-16 Siemens Energy Global GmbH & Co. KG Combined plant and method for operating a combined plant
CN119982198A (en) * 2025-04-17 2025-05-13 西安交通大学 A distributed energy storage system and method coupled with a micro gas turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645732A (en) * 2019-10-30 2020-01-03 中国长江三峡集团有限公司 Comprehensive energy system based on reversible expansion machine and operation method
CN110645732B (en) * 2019-10-30 2023-10-17 中国长江三峡集团有限公司 Comprehensive energy system based on reversible expander and operation method
CN112728809A (en) * 2020-12-31 2021-04-30 新奥数能科技有限公司 Air source heat pump operation control method and device, electronic equipment and medium
CN113418353A (en) * 2021-08-23 2021-09-21 华东交通大学 Solar ORC-based medicinal material drying device and optimization decision method

Also Published As

Publication number Publication date
DE202020105986U1 (en) 2020-12-01
JP3230102U (en) 2021-01-07

Similar Documents

Publication Publication Date Title
CN210892246U (en) Comprehensive energy system based on reversible expander
Mosleh et al. A year-round dynamic simulation of a solar combined, ejector cooling, heating and power generation system
CN202209817U (en) District cooling, heating and power combined energy system based on absorption heat exchange
CN112762424B (en) Solar thermoelectric coupling system based on combination of heat storage and compression heat pump and operation method thereof
CN107355841B (en) A low valley electric driven air source heat pump multi-mode heating system
CN202382474U (en) Solar-energy-and-geothermy-integrated storage, heating and refrigerating system
CN103115389A (en) Solar energy combined type phase-change heat storage heating system
CN102331110A (en) Regional heating, cooling and power combined energy system and method based on absorption heat exchange
CN105276833B (en) A kind of solar water heating system and heat pump heat refrigeration system and its method
CN101832682A (en) Energy-storing solar absorption refrigeration system
CN110486779B (en) A Solar Energy Comprehensive Utilization System Using Soil Cold Energy to Cool Photovoltaic Cells
CN101893299A (en) Solar adsorption air conditioning system based on phase change cold storage
CN114263995A (en) A solar photovoltaic light-heat-driven combined cooling, heating and power supply system
CN114646151A (en) Combined cooling heating and power PVT direct-current heat pump system and operation method
CN100427851C (en) Energy-saving air conditioner driven by combined solar energy and natural gas
Farzan The study of thermostat impact on energy consumption in a residential building by using TRNSYS
Li et al. Optimization and simulation of a novel multi-energy complementary heat pump system in cold regions
CN106802024B (en) A heat pump air conditioner and domestic hot water combined system based on phase change energy storage
CN106839217B (en) Combined heat pump air conditioning system capable of independently operating in de-electrification mode and control method thereof
CN113915794A (en) A cooling and heating method for a multi-energy complementary cooling/heating energy storage system
CN116058215B (en) PVT heat pump composite energy supply system for facility agriculture greenhouse
CN110645732B (en) Comprehensive energy system based on reversible expander and operation method
CN110410841A (en) A phase change energy storage compound heating system based on electric heat pump
CN105042942A (en) Photovoltaic curtain wall and double-source heat pump integrated system suitable for cold area
CN116792967A (en) A PVT heat pump production, storage and supply collaborative system for facility agricultural greenhouses

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant