CN203081665U - Distributed multistage solar energy power generation system - Google Patents
Distributed multistage solar energy power generation system Download PDFInfo
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- CN203081665U CN203081665U CN2012202248046U CN201220224804U CN203081665U CN 203081665 U CN203081665 U CN 203081665U CN 2012202248046 U CN2012202248046 U CN 2012202248046U CN 201220224804 U CN201220224804 U CN 201220224804U CN 203081665 U CN203081665 U CN 203081665U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- 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
- Y02E10/44—Heat exchange systems
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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
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The utility model aims to provide a distributed multistage solar energy power generation system which comprises the following components: a solar energy collecting system, and a solar power generator set. The distributed multistage solar energy power generation system comprises at least two sets of solar energy power generation systems. Each set of solar energy power generation system is composed of a solar energy collecting system and a solar power generator set. One set of solar energy power generation system can be connected in series and/or in parallel with another set of solar energy power generation system. The waste heat after power generation of the solar energy power generation system is used by another set of solar energy power generation system. The second set of solar energy power generation system is composed of a solar energy low-temperature power generation system and a solar energy high-temperature power generation system. Simultaneously because distributed collection and distributed multistage complementation power generation are adopted, distributed multistage solar energy power generation is realized. In each stage of solar energy power generation system, refrigeration, drying and hot water are adopted. Not only is waste heat utilization realized, but also condensation for working medium is realized. Integral heat energy utilization efficiency of the system is improved.
Description
Technical field
The utility model relates to solar electrical energy generation, and particularly with distributed multi-stage solar energy thermal-power-generating and co-generation unit, its waste heat can be used for application such as heating, refrigeration, drying, hot water.
Background technique
Existing solar electrical energy generation mainly contains two kinds of photovoltaic and photo-thermal, and photovoltaic generation needs silicon or other special materials to generate electricity, and photothermal power generation has slot type, tower and butterfly.Thermoelectricity mainly is large-scale generating, and mainly be the single-stage power generation system, such power generation system, the main generating that still realizes according to traditional coal power generation principle, shortage is to the adaptation of dynamic solar source, in addition, because the collecting temperature of main solar electrical energy generation is single, thereby do not need there is not multistage power generation system yet, thereby can not low-temperature water heating technology and industry that China is leading be applied to this field, simultaneously existing solar energy thermal-power-generating lacks on a small scale, family oriented, the heat generating system of cost degradation, existing solar vacuum heat-collecting pipe is mainly used in solar water heater simultaneously, because collecting temperature is low, direct generation of electricity efficient is low, thereby has limited its application.
Distributed energy resource system is meant energy system is arranged in user side with small-scale, small capacity, modularization, distributed mode, comes hot and cold, the electric energy of transmitted in both directions.Owing to can improve energy utilization rate and Supply Security, realize energy-on-demand and for the user provides more more options, distributed energy resource system becomes the important development direction of global power industry and energy industry.The energy utilization rate of distributed energy resource system be higher than far away majority state rely on large-scale main power station with electric power from the power station centrally connected power supply system to terminal use's one-way transmission.1/3 heat energy that the power station finally can only produce the fuel energy burning changes into electric energy, and nearly 50% heat energy runs off, the heat energy of transmission link loss nearly 10%.And current 20% capacity of installed generator only is used to satisfy the demand of peak times of power consumption.Therefore, these generator set only account for 5% of whole unit operation times working time, and generated energy only accounts for 1% of generating total amount.Owing to only rely on several main line transferring electric powers, the power supply line of the centrally connected power supply system problem of blocking up highlights day by day.The power supply surplus forces public public institution to rely on higher the generating with the lower energy of efficient of contaminativity to satisfy the peak times of power consumption demand, rather than simply dump power is distributed to the high market of demand again from the low market of demand, thereby cause energy utilization rate more low.Yet the distributed combined heat and power generation unit all is the cogeneration of heat and power of adopting traditional energy to realize, and does not have the cogeneration units of heat accumulating type, like this obstacle the application of new energy and cogeneration units.
The distributed solar heat generating system is the generation mode at the big employing of solar energy acquisition area, and still how multistage distributed solar energy power generation system carries out, and need study.
Summary of the invention
The purpose of this utility model provides a kind of distributed multi-stage solar energy thermal-power-generating and polygenerations systeme, adopt at least one group of low-temperature solar energy heat generating system and at least one group of solar energy high temperature power generation system, waste heat after the generating of a power generation system is utilized by another power generation system, realize the generating of multistage UTILIZATION OF VESIDUAL HEAT IN, utilize the collecting temperature feature of solar energy system, the generating that 60-300 degree centigrade thermal source is realized is divided into the solar low-temperature generating, adopting 300-1200 degree centigrade thermal source to generate electricity is the solar energy high temperature generating, the waste heat of the power generation system of twin-stage can be by one-level utilization in addition, thereby the solar energy system of different collecting temperatures can be carried out step and gather cascade utilization, thereby realized multistage complementation utilization generating.Simultaneously owing to adopt distributed capture and distributed multi-stage complemental power-generation, thereby realized the distributed multi-stage solar energy thermal-power-generating, in the solar power system of each grade, adopt refrigeration, supply application dry, hot water, promptly realized UTILIZATION OF VESIDUAL HEAT IN, realized condensation again, thereby increased the whole utilization efficiency of heat energy of system working medium.
Concrete summary of the invention is as follows:
Distributed multi-stage solar energy thermal-power-generating and polygenerations systeme, comprise the solar energy acquisition system, the solar electrical energy generation unit, it is characterized in that: comprise two groups of solar power systems at least, every group of solar power system is made up of solar energy acquisition system and solar electrical energy generation unit, one group of solar power system is connected and/or is connected in parallel with other one group of solar power system, waste heat after one group of solar power system generates electricity is by another group solar power system utilization, realize the generating of multistage UTILIZATION OF VESIDUAL HEAT IN, two groups of solar power systems can be made of one group of solar low-temperature power generation system and one group of solar energy high temperature power generation system.
Wherein the solar low-temperature power generation system adopts 60-300 degree centigrade thermal source to realize generating, the solar energy high temperature power generation system adopts 300-1200 degree centigrade thermal source to generate electricity, described solar low-temperature power generation system is made of solar low-temperature acquisition system and solar low-temperature generator set, and described solar energy high temperature power generation system is made up of solar energy high temperature acquisition system and solar energy high temperature generator set.
One group of solar power system is called the one-level solar power system with wherein one group of solar power system after other one group of solar power system is connected, other one group is called the secondary power generation system, forms multistage power generation system after the system of secondary connects at least.
The heat energy of the working medium that solar low-temperature power generation system employing solar energy high temperature power generation system generator set is discharged is that the energy is realized the low-temperature solar energy generating, and the system that the energy of the working medium after perhaps the solar low-temperature power generation system is generated electricity is generated electricity by high temperature solar is used for the high temperature generating.
Also be provided with the thermal accumulator of different temperatures, thermal accumulator is arranged in the power generation cycle as required, usually before being arranged on the low-temperature electricity-generating unit and entering generator set, the high temperature generator set enter generator set before, high temperature generator set institute exhaust port, be provided with heat-accumulating material in thermal accumulator, heat-accumulating material is selected from following at least a or its combination:
A, water;
B, conduction oil;
C, solid-liquid phase change, solid-solid phase change material;
D, fuse salt.
The energy high temperature solar power generation system of the working medium after the generating of solar low-temperature power generation system is used, and adopts one of following manner:
A, the working medium that the high temperature generator set is discharged are delivered directly in the low-temperature electricity-generating unit and generate electricity;
B, the working medium of being discharged with the high temperature generator set are that thermal source is through one group of heat-exchanger rig, the working medium heating of low-temperature electricity-generating is generated electricity, the outlet of the generator set of elevated temperature heat generating is provided with a heat exchanger, the heat exchanger temperature end is that the working medium of high temperature generating is reduced to low temperature by high temperature, and the low-temperature zone of heat exchanger heats up the working medium of low-temperature electricity-generating or evaporates;
C, the working medium that the high temperature generator set is discharged are carried in the thermal accumulator, undertaken after the heat exchange heat energy being carried out accumulation of heat by one group of heat-exchanger rig and thermal accumulator, be provided with one group of heat exchanger between low-temperature electricity-generating unit and the thermal accumulator, when needs generate electricity, carry out heat exchange and realize generating by heat exchanger and low-temperature electricity-generating unit.
The energy of the working medium after the generating of solar low-temperature power generation system adopts one of following manner as the energy of high temperature solar generating:
A, the waste heat behind the low-temperature electricity-generating is mixed the common energy that constitutes the high temperature generating with high temperature heat source;
B, the waste heat of low-temperature electricity-generating is heated to the temperature of the thermal source of high temperature solar generating again, carries out the high temperature generating;
C, the waste heat of low-temperature electricity-generating is pressurized to the temperature and pressure of the thermal source of high temperature solar generating again, carries out the high temperature generating.
High temperature generator set and low-temperature electricity-generating unit are formed two independently power generation cycle system generatings, and system realizes every grade of independent generating; Realize the multistage complementary step generating that utilizes again.Can generate electricity according to the collection of system and the demand of generating like this, same generating working medium is adopted in the twin-stage generating, perhaps adopts different generating working mediums, adopts same power generation cycle, perhaps adopts different power generation cycle
The condensing temperature of solar energy high temperature power generation system is 60-300 degree centigrade, steam turbine or the generating of back pressure turbine group are adopted in the solar energy high temperature generating, solar low-temperature adopts the decompressor unit generation, it is that working medium generates electricity that the solar energy high temperature generator set adopts steam, and solar low-temperature adopts the Lang Ken circulating generation of organic working medium.
The sun low temperature acquisition system adopt following a kind of or its combination:
A, single port solar vacuum heat-collecting pipe;
B, bilateral solar vacuum heat-collecting pipe;
C, solar heat-collection plate;
D, in A, B, C acquisition system, add the Fresnel diaphotoscope of fresnel reflecting mirror, linear focusing or the point focusing of metal, glass, film reflection or transmittance plate or linear focusing or point focusing;
The solar energy high temperature acquisition system adopts following a kind of or its combination:
A, slot type;
B, tower;
C, dish formula;
D, Fresnel mirror.
Any thermal electric generator group can be applied to power generation system, and high temperature generator set or low-temperature electricity-generating unit adopt following a kind of:
A, turbine fluid generator;
B, single screw rod fluid generator;
C, twin-screw fluid generator;
D, impeller fluid generator;
E, rotor fluid generator;
F, piston fluid generator;
G, steam turbine.
The generating working medium can adopt traditional water or the organic working medium of low temperature, and all refrigeration agent class materials and combination thereof can become the generating working medium, and its preferred described generating working medium comprises at least one in the following type at least:
A, freon;
B, ammonia;
C, water;
D, hydrocarbon;
E, alcohol;
F, greenhouse gases.
Also be provided with Poly-generation equipment, Poly-generation equipment is arranged on generator set working medium exhaust port, Poly-generation equipment is connected with generator set as the condenser of power generation system, perhaps carry out in parallel with the power generation system condenser, the waste heat of the working medium after the generating is used, realizes connecting by series, parallel, mixing connection between a plurality of Poly-generation equipment are provided with; Poly-generation equipment is selected from following at least a:
A, heating equipment: a circulation closed system of forming by heat exchanger or the thermal accumulator that is connected with heat exchanger, the radiator of heating, floor heating pipeline, recycle pump, the high temperature fluid of this heat exchanger is the power generation cycle working medium, realization is carried out condensation to the generating working medium, the low temperature heating fluid of heat exchanger by heat exchanger with thermal power transfer to the low temperature heating fluid, the low temperature heating fluid through recycle pump with thermal energy transfer on the radiator, floor heating pipeline of heating, realize heating to building;
B, domestic hot-water's equipment: by heat exchanger or the thermal accumulator that is connected with heat exchanger, water switch, bathing shower nozzle form, pump forms, the high temperature fluid of this heat exchanger is the power generation cycle working medium, realization is carried out condensation and utilization to the generating working medium, and cryogen heats the domestic hot-water;
C, chiller plant: a circulation closed system of forming by heat exchanger or the thermal accumulator that is connected with heat exchanger, cooling machine set, recycle pump, the high temperature fluid of this heat exchanger is the power generation cycle fluid, realization is carried out condensation or utilization to the generating working medium, the cryogenic refrigeration fluid of heat exchanger obtains heat energy by heat exchanger, freezes by cooling machine set;
D, boiling water equipment: be made up of the boiling water thermal accumulator, the water switch that carry out heat exchange with heat exchanger, heat exchanger is heated as boiling water with the hot water of boiling water thermal accumulator,
E, drying equipment: by the drying equipment that carries out heat exchange with heat exchanger, heat exchanger provides heat energy for drying equipment, and the temperature of the generating working medium high temperature fluid of heat exchanger is higher than 40 degree;
F, cooking equipment: by the cooking equipment that carries out heat exchange with heat exchanger, heat exchanger provides heat energy for cooking equipment, and the temperature of the generating working medium high temperature fluid of heat exchanger is higher than 80 degree.A plurality of solar low-temperature acquisition systems are gathered, the a plurality of solar low-temperature heat source systems of gathering of back formation, a plurality of low-temperature heat sources and a plurality of low-temperature electricity-generating unit are realized distributed power generation, waste heat after the generating is used for the high temperature distributed power generation, enters into the low temperature acquisition system again after the thermal source after the generating is used through refrigeration, drying, heating and heats.
Can obtain following beneficial effect by implementing the utility model:
1, the utility model makes full use of the waste heat after low-temperature solar energy generating and the high temperature solar generating, thereby has improved the energy utilization rate of total system, has realized the generating of step collection and step;
2, the utility model is distributed, low-cost heat generating system, can be used for the generating of family and power station electrical network;
3, the cost of this thermoelectric Poly-generation is low, efficient is high, for the solar energy utilization provides brand-new technology and product;
4, the utility model also can be used for large-scale generating, realizes with a plurality of distributed solar energy acquisitions;
Description of drawings
The concrete implication of label is as follows in the accompanying drawing:
1: the solar low-temperature acquisition system, 2: the sun cryogenerator, 3: the solar energy high temperature acquisition system, 4: the solar energy high temperature generator, 5: the solar low-temperature generating waste-heat provides high-temperature power generation system, and 6: the solar energy high temperature generating waste-heat offers low-temperature generating system, 7: vaporizer, 8: condenser, 9: recycle pump, 10: regenerative heat exchanger, 11: supercharging equipment, 12: cooking equipment, 13: drying equipment, 14: cooling machine set, 15: life washing bath equipment, 16: heating equipment.
Fig. 1 is the schematic representation of multi-level solar heat generating system;
Fig. 2 mixes the schematic representation that utilizes formula multi-level solar heat generating system;
Fig. 3 is the schematic representation of two-stage independent loops and complementary cycle power generation system;
Fig. 4 is the schematic representation of two-stage independent loops and complementary cycle generating and polygenerations systeme;
Fig. 5 is the schematic representation of distributed two-stage independent loops and complementary cycle generating and polygenerations systeme.
Embodiment
Be provided with the sun among Fig. 1 low temperature acquisition system 1 and solar low-temperature power generation system 2, solar energy high temperature acquisition system 3 and solar energy high temperature acquisition system 4, the waste heat of solar low-temperature power generation system provides high-temperature power generation system 5 to offer the solar energy high temperature power generation system by the solar low-temperature generating waste-heat, and the waste heat of solar energy high temperature power generation system offers low-temperature generating system 6 by the solar energy high temperature generating waste-heat and offers low-temperature generating system.
Fig. 2 forms low-temperature generating system by low-temperature solar energy acquisition system 1 and low-temperature solar energy generating 2, the waste heat part of low-temperature generating system directly offers the high temperature solar acquisition system and heats, a part offers the high-temperature heat accumulation heat exchanger in addition, high temperature solar acquisition system 3 is carried out complementation with the direct heat energy of gathering of high temperature and the waste heat of low-temperature electricity-generating, offer high temperature solar power generation system 4, generate electricity, waste heat after the generating enters into condenser and carries out partial condensation, hot operation medium after the partial condensation directly carries out the high temperature generating, a part of waste heat of high temperature generating directly enters into regenerative heat exchanger 10, directly offers to be used for the low-temperature solar energy generating after the low-temperature solar energy acquisition system is gathered.
Native system adopts part of waste heat is directly offered other one-level, and the mode that part of waste heat is used after exchanging by condenser, regenerative heat exchanger is with waste heat utilization respectively as required.
As shown in Figure 3, the solar low-temperature thermal source that solar low-temperature acquisition system 1 is gathered in the present embodiment offers cryogenic vaporizer 7, realize generating by cryogenerator 2, waste heat after the generating proceeds to condenser 8 condensations, working medium recycle pump 9 through condenser enters into vaporizer, thereby constitute the low-temperature solar energy heat generating system, this circulation adopts the organic working medium Lang Ken circulation of ORC to generate electricity, its generating working medium is the mixed medium of refrigeration agent freon, and generator adopts the screw expansion unit to generate electricity.
The solar energy high temperature power generation system that solar energy high temperature acquisition system 3 and solar energy high temperature power generation system 4 constitute constitutes a cycle generating system by vaporizer 7 condensers 8 recycle pumps 9, it is the working medium generating that this system adopts water, adopt and pressed steam turbine set to generate electricity, the condensed working medium of the waste heat of low-temperature generating system and high-temperature power generation system carries out heat exchange, the solar energy acquisition system that the condensed water of high temperature is carried out entering into after the elementary heating again high temperature heats up, and the low-temperature working medium after the heat exchange carries out the low temperature circulating generation behind condenser; The waste heat of high temperature generating and the waste heat of low-temperature electricity-generating carry out heat exchange by regenerative heat exchanger 10, and the gas that the working medium of low temperature is directly heated finisher mixes or directly enters into generator set and generates electricity.
The twin-stage power generation system adopts different working medium and different generator set, realizes independent or complementary the generating electricity of twin-stage.
As shown in Figure 4, present embodiment adopts two power generation systems that independence can be moved, but adopt identical working medium water to generate electricity, the condensation portion of low-temperature generating system and high-temperature power generation system all is to adopt the mode of UTILIZATION OF VESIDUAL HEAT IN to realize, the waste heat of low-temperature electricity-generating part is directly used in heating 15 and hot water 16, high-temperature residual heat partly is used to freeze 12, application such as dry 13, the afterheat steam of low temperature enters into high temperature evaporation indoor 7 after being compressed device 11 compressions, be used, the waste heat of high temperature enters into cryogenic vaporizer 7 via regenerative heat exchanger 10 and is used.Owing to adopts combined production device, thereby waste heat can be utilized, thereby present embodiment is the power generation system of multistage Poly-generation.
Embodiment 5, distributed two-stage independent loops and complementary cycle generating and polygenerations systeme
As shown in Figure 5, low temperature acquisition system that present embodiment has been three sun and three low-temperature electricity-generating units carry out distributed capture and generating, its waste heat is used to enter into and directly is added into the laggard high temperature solar generator set that enters into after two high temperature solar acquisition systems are heated and generates electricity, part of waste heat enters into regenerative heat exchanger 10, mix or heat exchange with the heat energy of high temperature collection, high temperature heat enters into two high temperature generator set, the generating of realization high temperature, the waste heat after the high temperature generating directly enter into the generating of low-temperature electricity-generating unit or heat the back generating through the solar low-temperature acquisition system.
According to principle of the present utility model and structure, can design other case study on implementation, as long as meet principle of the present utility model and structure, all belong to enforcement of the present utility model.
Claims (10)
1. distributed multi-stage solar heat power generation system, comprise the solar energy acquisition system, the solar electrical energy generation unit, it is characterized in that: comprise two groups of solar power systems at least, every group of solar power system is made up of solar energy acquisition system and solar electrical energy generation unit, one group of solar power system is connected and/or is connected in parallel with other one group of solar power system, waste heat after one group of solar power system generates electricity is by another group solar power system utilization, realize the generating of multistage UTILIZATION OF VESIDUAL HEAT IN, two groups of solar power systems can be made of one group of solar low-temperature power generation system and one group of solar energy high temperature power generation system.
2. distributed multi-stage solar heat power generation system according to claim 1, it is characterized in that: the heat energy of the working medium that solar low-temperature power generation system employing solar energy high temperature power generation system generator set is discharged is that the energy is realized the low-temperature solar energy generating, and the system that the energy of the working medium after perhaps the solar low-temperature power generation system is generated electricity is generated electricity by high temperature solar is used for the high temperature generating.
3. distributed multi-stage solar heat power generation system according to claim 1, it is characterized in that: the solar low-temperature power generation system is made of solar low-temperature acquisition system and solar low-temperature generator set, and the solar energy high temperature power generation system is made up of solar energy high temperature acquisition system and solar energy high temperature generator set; Also be provided with the thermal accumulator of different temperatures, before described thermal accumulator is arranged on the low-temperature electricity-generating unit and enters generator set, the high temperature generator set enter generator set before, high temperature generator set institute exhaust port, in thermal accumulator, be provided with heat-accumulating material.
4. according to claim 1 or 3 described distributed multi-stage solar heat power generation systems, it is characterized in that: adopting the heat energy of the working medium that following a kind of mode discharged the solar energy high temperature generator set is the energy, is used for the generating of low-temperature solar energy generator set:
A, the working medium that the high temperature generator set is discharged are delivered directly in the low-temperature electricity-generating unit and generate electricity;
B, the working medium of being discharged with the high temperature generator set are that thermal source is through one group of heat-exchanger rig, the working medium heating of low-temperature electricity-generating is generated electricity, the generator working medium outlet of elevated temperature heat generating is provided with a heat exchanger, the heat exchanger temperature end is that the working medium of high temperature generating is reduced to low temperature by high temperature, and the low temperature of heat exchanger, end heat up the working medium of low-temperature electricity-generating or evaporates;
C, the working medium that the high temperature generator set is discharged are transported in the thermal accumulator, undertaken after the heat exchange heat energy being carried out accumulation of heat by one group of heat-exchanger rig and thermal accumulator, be provided with one group of heat exchanger between low-temperature electricity-generating unit and the thermal accumulator, when needs generate electricity, carry out heat exchange and realize generating by heat exchanger and low-temperature electricity-generating unit;
The energy high temperature solar power generation system of the working medium after the generating of solar low-temperature power generation system is used, and adopts one of following manner:
A, the waste heat behind the low-temperature electricity-generating is mixed the common energy that constitutes the high temperature generating with high temperature heat source;
B, the waste heat of low-temperature electricity-generating is heated to the temperature of the thermal source of high temperature solar generating again, carries out the high temperature generating;
C, the waste heat of low-temperature electricity-generating is pressurized to the temperature and pressure of the thermal source of high temperature solar generating again, carries out the high temperature generating.
5. distributed multi-stage solar heat power generation system according to claim 3 is characterized in that: high temperature generator set and low-temperature electricity-generating unit are formed two independently power generation cycle system generatings, and system realizes every grade of independent generating; Realize the multistage complementary step generating that utilizes again, same generating working medium is adopted in the twin-stage generating, perhaps adopts different generating working mediums, adopts same power generation cycle, perhaps adopts different power generation cycle.
6. according to claim 1 or 4 described distributed multi-stage solar heat power generation systems, it is characterized in that: the condensing temperature of solar energy high temperature power generation system is 60-300 degree centigrade, steam turbine or the generating of back pressure turbine group are adopted in the solar energy high temperature generating, solar low-temperature adopts the decompressor unit generation, it is that working medium generates electricity that the solar energy high temperature generator set adopts steam, and solar low-temperature adopts the Lang Ken circulating generation of organic working medium.
7. distributed multi-stage solar heat power generation system according to claim 3 is characterized in that: the solar low-temperature acquisition system adopts following a kind of or its combination:
A, single port solar vacuum heat-collecting pipe;
B, bilateral solar vacuum heat-collecting pipe;
C, solar heat-collection plate;
D, in A, B, C acquisition system, add the Fresnel diaphotoscope of fresnel reflecting mirror, linear focusing or the point focusing of metal, glass, film reflection or transmittance plate or linear focusing or point focusing;
The solar energy high temperature acquisition system adopts following a kind of or its combination:
A, slot type;
B, tower;
C, dish formula;
D, Fresnel mirror.
8. distributed multi-stage solar heat power generation system according to claim 3 is characterized in that: high temperature generator set or low-temperature electricity-generating unit adopt following a kind of:
A, turbine fluid generator;
B, single screw rod fluid generator;
C, twin-screw fluid generator;
D, impeller fluid generator;
E, rotor fluid generator;
F, piston fluid generator;
G, steam turbine.
9. distributed multi-stage solar energy polygenerations systeme, it is characterized in that: comprise described distributed multi-stage solar energy thermal-power-generating of claim 1 and polygenerations systeme, also be provided with Poly-generation equipment, Poly-generation equipment is arranged on generator set working medium exhaust port, Poly-generation equipment is connected with generator set as the condenser of power generation system, perhaps carry out in parallel with the power generation system condenser, the waste heat of the working medium after the generating is used, realizes connecting by series, parallel, mixing connection between a plurality of Poly-generation equipment are provided with; Poly-generation equipment is selected from following at least a:
A, heating equipment: a circulation closed system of forming by heat exchanger or the thermal accumulator that is connected with heat exchanger, the radiator of heating, floor heating pipeline, recycle pump, the high temperature fluid of this heat exchanger is the power generation cycle working medium, realization is carried out condensation to the generating working medium, the low temperature heating fluid of heat exchanger by heat exchanger with thermal power transfer to the low temperature heating fluid, the low temperature heating fluid through recycle pump with thermal energy transfer on the radiator, floor heating pipeline of heating, realize heating to building;
B, domestic hot-water's equipment: by heat exchanger or the thermal accumulator that is connected with heat exchanger, water switch, bathing shower nozzle form, pump forms, the high temperature fluid of this heat exchanger is the power generation cycle working medium, realization is carried out condensation and utilization to the generating working medium, and cryogen heats the domestic hot-water;
C, chiller plant: a circulation closed system of forming by heat exchanger or the thermal accumulator that is connected with heat exchanger, cooling machine set, recycle pump, the high temperature fluid of this heat exchanger is the power generation cycle fluid, realization is carried out condensation or utilization to the generating working medium, the cryogenic refrigeration fluid of heat exchanger obtains heat energy by heat exchanger, freezes by cooling machine set;
D, boiling water equipment: be made up of the boiling water thermal accumulator, the water switch that carry out heat exchange with heat exchanger, heat exchanger is heated as boiling water with the hot water of boiling water thermal accumulator;
E, drying equipment: by the drying equipment that carries out heat exchange with heat exchanger, heat exchanger provides heat energy for drying equipment, and the temperature of the generating working medium high temperature fluid of heat exchanger is higher than 40 degree;
F, cooking equipment: by the cooking equipment that carries out heat exchange with heat exchanger, heat exchanger provides heat energy for cooking equipment, and the temperature of the generating working medium high temperature fluid of heat exchanger is higher than 80 degree.
10. distributed multi-stage solar heat power generation system according to claim 1, it is characterized in that: a plurality of solar low-temperature acquisition systems carry out distributed capture and a plurality of solar energy high temperature acquisition system is carried out distributed capture, the a plurality of solar low-temperature heat source systems of gathering of back formation, a plurality of low-temperature heat sources and a plurality of low-temperature electricity-generating unit are realized distributed power generation, and the energy of a plurality of high temperature acquisition system collection enters into high-temperature power generation system and carries out distributed power generation; Waste heat after the generating of low-temperature electricity-generating and high temperature generating utilizes mutually, enters into low temperature again after the thermal source after the generating is used through refrigeration, dry, heating Poly-generation or the high temperature acquisition system is carried out circulating generation.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865202A (en) * | 2011-05-17 | 2013-01-09 | 北京智慧剑科技发展有限责任公司 | Distributed multi-stage solar thermal power generation and poly-generation system |
| CN106415142A (en) * | 2014-04-22 | 2017-02-15 | 威拓股份有限公司 | Broad band district heating and cooling system |
| CN106679200A (en) * | 2015-11-10 | 2017-05-17 | 陈宇奇 | Heating power switching system for solar thermal collector heat collection pipes |
| CN112576324A (en) * | 2020-12-03 | 2021-03-30 | 广东省昱辰电子科技有限公司 | Ultralow temperature power generation method and system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865202A (en) * | 2011-05-17 | 2013-01-09 | 北京智慧剑科技发展有限责任公司 | Distributed multi-stage solar thermal power generation and poly-generation system |
| CN102865202B (en) * | 2011-05-17 | 2018-05-15 | 北京智慧剑科技发展有限责任公司 | Distributed multi-stage solar energy thermal-power-generating and polygenerations systeme |
| CN106415142A (en) * | 2014-04-22 | 2017-02-15 | 威拓股份有限公司 | Broad band district heating and cooling system |
| US10883728B2 (en) | 2014-04-22 | 2021-01-05 | Vito | Broad band district heating and cooling system |
| CN106679200A (en) * | 2015-11-10 | 2017-05-17 | 陈宇奇 | Heating power switching system for solar thermal collector heat collection pipes |
| CN106679200B (en) * | 2015-11-10 | 2020-07-28 | 陈宇奇 | Thermal switching system for heat collecting pipe of solar heat collector |
| CN112576324A (en) * | 2020-12-03 | 2021-03-30 | 广东省昱辰电子科技有限公司 | Ultralow temperature power generation method and system |
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