CN203809224U - Solar photothermal power generation comprehensive utilizing system - Google Patents

Solar photothermal power generation comprehensive utilizing system Download PDF

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Publication number
CN203809224U
CN203809224U CN201420229577.5U CN201420229577U CN203809224U CN 203809224 U CN203809224 U CN 203809224U CN 201420229577 U CN201420229577 U CN 201420229577U CN 203809224 U CN203809224 U CN 203809224U
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CN
China
Prior art keywords
heat
unit
waste heat
steam
energy applications
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Expired - Fee Related
Application number
CN201420229577.5U
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Chinese (zh)
Inventor
王振声
崔楠楠
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DALIAN GREAT OCEAN NEW ENERGY DEVELOPMENT Co Ltd
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DALIAN GREAT OCEAN NEW ENERGY DEVELOPMENT Co Ltd
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Priority to CN201420229577.5U priority Critical patent/CN203809224U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Abstract

The utility model discloses a solar photothermal power generation comprehensive utilizing system which comprises an energy conversion unit, a heat storage tank, a first-stage energy application unit, a second-stage energy application unit and a third-stage energy application unit. The energy conversion unit is connected with the heat storage tank and the first-stage energy application unit respectively, the first-stage energy application unit is connected with the second-stage energy application unit which comprises a waste heat steam boiler, a steam turbine and a cooling tower, the third-stage energy application unit comprises a waste heat hot water boiler and a lithium bromide refrigerating unit, and hot water generated by the waste heat boiler provides heat to a residential area through a hot water pipeline or is delivered to the lithium bromide refrigerating unit through the hot water pipeline and then refrigerates the residential area through the lithium bromide refrigerating unit. A three-stage energy utilization mode is adopted, so that comprehensive utilization of the solar heat source at three stages of high temperature, medium temperature and low temperature; utilization rate of solar energy is enabled to be maximized; the solar photothermal power generation comprehensive utilizing system belongs to clean energy resources and is free of environment pollution.

Description

Solar light-heat power-generation utilization system
Technical field
The utility model relates to a kind of energy comprehensive utilization system, relates to specifically the high-grade solar light-heat power-generation utilization system of the generating of a kind of applied solar energy dish formula concentration photo-thermal heat and heat utilization technology.
Background technique
At present, in solar energy optical-thermal field, no matter be slot type or tower-type electricity generation, all that the system of applying itself realizes single-stage power generation, do not realize temperature step application from high to low, to the application deficiency of solar energy photo-thermal high-temperature thermal-arrest, utilize angle to exist from energy unreasonable.Such as slot type power generation system, to utilize conduction oil to flow through slot light collection in its heating pipe conduction oil is heated, be heated to 400 DEG C of left and right, then by making the work of water generates water vapour pushing turbine with water heat exchange in steam generator, because the feature optically focused of slot type power generation system has determined that than little it can only be applied to steam turbine power generation, belong to middle temperature application, cannot realize the step application of high-temperature.And for example tower-type electricity generation system, tower-type electricity generation system is mainly by thermal-arrest tower, the low-temperature molten salt of liquid to be heated at present, then heating after high-temperature molten salt in steam generator with water heat exchange, water promotes steam turbine generating after becoming water vapor, the Maximum operating temperature of fused salt is at 600 DEG C, also belong to the utilization of middle temperature, its temperature applications is restricted.Above two prior aries have all been subject to itself system constraint, all belong to the utilization of middle temperature, cannot realize multistage generating or heat energy application
Summary of the invention
In view of the defect of prior art existence, the purpose of this utility model is that a kind of high-grade solar light-heat power-generation utilization system efficiently will be provided, high-grade solar energy is divided into three grades of application in height by this system, thereby reach energy application step by step from high to low, make the utilization ratio of high-grade solar energy obtain maximized application, in addition this system disposition the energy-storage system of high-grade solar energy, can within continuous 24 hours, run without interruption, make whole system energy long-time steady operation.
To achieve these goals, the technical solution of the utility model:
Solar light-heat power-generation utilization system, comprises the energy conversion unit of utilizing solar energy dish formula focusing system to carry out cool air heating, it is characterized in that:
Also comprise the heat storage can for carrying out heat accumulation, first order energy applications unit, energy applications unit, the second level and the third level energy applications unit for generating electricity; Described energy conversion unit is connected with heat storage can entrance pipe and first order energy applications unit entrance pipe respectively by air pipe line;
The export pipeline of first order energy applications unit is connected with the entrance pipe of energy applications unit, the second level by air pipe line, energy applications unit, the described second level comprises waste heat steam boiler, steam turbine and cooling tower, the entrance pipe of described waste heat steam boiler is connected with the export pipeline of first order energy applications unit by air pipe line, carry out heat exchange for the hot air that utilizes the first order energy applications unit receiving to discharge, and the steam (vapor) outlet pipeline of waste heat steam boiler connects steam turbine by steam pipework, make superheated vapor that waste heat steam boiler produces enter and drive steam turbine generating after steam turbine by steam pipework, the steam exhaust steam that described cooling tower receives steam turbine export pipeline by steam pipework is carried out cooling, and the entrance pipe that cooling water enters waste heat steam boiler by water pump and cold water pipeline recycles,
The export pipeline of described waste heat steam boiler also connects the entrance pipe of third level energy applications unit by another air pipe line, described third level energy applications unit comprises waste heat water-heating boiler and lithium bromide refrigerating unit, the entrance pipe of described waste heat water-heating boiler is connected with the export pipeline of waste heat steam boiler by air pipe line, the hot air that receives waste heat steam boiler discharge for utilizing carries out heat exchange, waste heat water-heating boiler produce hot water or heat to residential belt by hot water pipe, or be delivered to lithium bromide refrigerating unit by hot water pipe, freeze to residential belt by lithium bromide refrigerating unit, the entrance pipe that cooling water after heating or refrigeration is delivered to waste heat water-heating boiler by cold water pipeline and water pump recycles,
Between described heat storage can and described first order energy applications unit, also by air pipe line, another heat delivery pipeline is set, for ensureing all the time according in situation, described heat storage can continues to described first order energy applications unit heating by this air pipe line.
Described energy conversion unit comprises the air compressor for compressing cool air and is connected by air pipe line with air compressor and is arranged on the air thermal collector on solar energy dish formula focusing system; Described solar energy dish formula focusing system and air thermal collector can be set to according to user demand multiple.
Described first order energy applications unit is flue gas turbine expander.
On many all the time according in situation, if the temperature in heat storage can is not enough to meet the generating of first order energy applications unit while requiring, described system also arranges air pipe line one for subsequent use, makes hot air in heat storage can be delivered to the waste heat steam boiler of energy applications unit, the second level by air pipe line one for subsequent use; If when the temperature in heat storage can is all not enough to meet the user demand of first order energy applications unit and energy applications unit, the second level, described system also arranges air pipe line two for subsequent use, makes hot air in heat storage can be delivered to the waste heat water-heating boiler of third level energy applications unit by air pipe line two for subsequent use.
Compared with prior art, the beneficial effects of the utility model:
The utility model utilizes the high-grade thermal source of solar energy, be provided with three-level system---first order energy applications unit, energy applications unit, the second level and third level energy applications unit, the comprehensive utilization of employing three-level system, has realized the comprehensive utilization of the high, medium and low temperature Three Estate to solar source; Make the utilization ratio of solar energy reach maximization;
The utility model has been equipped with energy-storage system-heat storage can, has realized the continuity of the high-grade thermal source comprehensive utilization of solar energy;
The utility model adopts three grades of energy to utilize pattern, and modular combination has practicability, operability; And disposable input, is not used any chemical fuel heat supply, energy saving; Belong to clean energy resource, free from environmental pollution, the utilization ratio of the energy is improved greatly.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure: 1, air compressor, 2, air thermal collector, 3, solar energy dish formula focusing system, 4, heat storage can, 5, flue gas turbine expander, 6, waste heat steam boiler, 7, steam turbine, 8, electrical network, 9, water pump, 10, cooling tower, 11, lithium bromide refrigerating unit, 12, waste heat water-heating boiler, 13, water pump, 14, residential belt, 15---32, air pipe line, 33---34, steam pipework, 35---37, hot water pipe, 38---42, cold water pipeline, I, first order energy applications unit, II, energy applications unit, the second level, III, third level energy applications unit.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
Main design aim: the utility model can be applicable to the generating of solar energy dish formula concentration photo-thermal heat and utilization side heat, because solar energy dish formula focusing system can produce the high temperature of 1000 DEG C-1200 DEG C, according to the feature of solar energy dish formula focusing system, for the high-grade solar energy after solar energy dish formula focusing system optically focused can effectively be utilized, we have designed an efficient high-grade solar energy application system, high-grade solar energy is divided into three grades of application in height by this system, thereby reach energy application step by step from high to low, make the utilization ratio of high-grade solar energy obtain maximized application, in addition this system disposition the energy-storage system of high-grade solar energy, can within continuous 24 hours, run without interruption, make whole system energy long-time steady operation.
The native system method of operation:
Embodiment as shown in Figure 1, air compressor 1 compresses after cool air, the export pipeline of air compressor 1 is by air pipe line 15, air pipe line 19, air pipe line 18 is supplied with respectively the air thermal collector 2 (air thermal collector 2 and solar energy dish formula focusing system 3 can configure multiple according to the optically focused power of power plant's scale and solar energy dish formula focusing system 3) being arranged on solar energy dish formula focusing system 3, cool air passes through air pipe line 20 after being heated to 800 DEG C-1000 DEG C by air thermal collector 2, air pipe line 21 and air pipe line 22 are divided into two-part and carry, part hot air is by air pipe line 23, air pipe line 17 enters heat storage can 4 and carries out heat accumulation, another part hot air enters flue gas turbine expander 5 by air pipe line 24 and generates electricity,
The hot air (general 600 DEG C-700 DEG C) of discharging from flue gas turbine expander 5 export pipelines is again by air pipe line 28, air pipe line 29 and air pipe line 30 enter waste heat steam boiler 6 and carry out heat exchange with water, the superheated vapor that exhaust heat boiler produces enters the rear drive steam turbine 7 of steam turbine 7 by steam pipework 33 and generates electricity, it is cooling that steam exhaust steam enters cooling tower by steam pipework 34, then entering waste heat steam boiler 6 by water pump 9 and cold water pipeline 41 circulates, and the hot air (200 DEG C of left and right) that the export pipeline of waste heat steam boiler 6 is discharged enters waste heat water-heating boiler 12 by air pipe line 31 and air pipe line 32 again and carries out heat exchange, the hot water that waste heat water-heating boiler produces can heat to residential belt 14 by hot water pipe 35 and hot water pipe 37 winter, can utilize lithium bromide refrigerating unit 11 to freeze to residential belt 14 summer by hot water pipe 35 and hot water pipe 36, give residential belt 14 heat or freeze after cooling water can pass through cold water pipeline 40, cold water pipeline 39, water pump 13, cold water pipeline 38 enters waste heat water-heating boiler 12 again and circulates, and the hot airs that entered tens degree left and right of heat exchange discharge in waste heat water-heating boiler 6 just can directly enter atmosphere.
After the sun sets during all the time according to situation, heat storage can 4 is that air pipe line 25 and air pipe line 26 continue to flue gas turbine expander 5 heat supplies by another heat delivery pipeline, all the other processes are as described above, and this has just ensured can continue operation in uninterrupted 24 hours after the sun sets.
When continuous many days during all the time according to situation, temperature in heat storage can 4 can be along with heat release generating and heat utilization temperature reduction gradually, in the time that the temperature in heat storage can 4 is not enough to meet the user demand of first order energy applications unit, after the generating that can not meet flue gas turbine expander 5 requires, heat storage can 4 export pipelines hot air out can be air pipe line 25 by air pipe line one for subsequent use, air pipe line 27, air pipe line 29, air pipe line 30 is supplied with energy applications unit, the second level, supplying with waste heat steam boiler 6 uses with water heat exchange, the steam producing continues to generate electricity with steam turbine 7, resupply third level energy applications unit by the waste heat air of waste heat steam boiler 6, supply with waste heat water-heating boiler 12, heat or freeze to again residential belt 14 by waste heat water-heating boiler 12, when the temperature in heat storage can 4 is all not enough to meet first order energy applications unit and second level system capacity applying unit, while being flue gas turbine expander 5 and steam turbine 7 generating use, heat storage can 4 export pipelines hot air out can be that air pipe line 25, air pipe line 27, air pipe line 29, air pipe line 32 are supplied with third level energy applications unit by air pipe line two for subsequent use, supply with waste heat water-heating boiler 12, heat or freeze to again residential belt 14 by waste heat water-heating boiler 12.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and model utility design thereof, within all should being encompassed in protection domain of the present utility model.

Claims (4)

1. solar light-heat power-generation utilization system, comprises the energy conversion unit of utilizing solar energy dish formula focusing system to carry out cool air heating, it is characterized in that:
Also comprise the heat storage can for carrying out heat accumulation, first order energy applications unit, energy applications unit, the second level and the third level energy applications unit for generating electricity; Described energy conversion unit is connected with heat storage can entrance pipe and first order energy applications unit entrance pipe respectively by air pipe line;
The export pipeline of first order energy applications unit is connected with the entrance pipe of energy applications unit, the second level by air pipe line, energy applications unit, the described second level comprises waste heat steam boiler, steam turbine and cooling tower, the entrance pipe of described waste heat steam boiler is connected with the export pipeline of first order energy applications unit by air pipe line, carry out heat exchange for the hot air that utilizes the first order energy applications unit receiving to discharge, and the steam (vapor) outlet pipeline of waste heat steam boiler connects steam turbine by steam pipework, make superheated vapor that waste heat steam boiler produces enter and drive steam turbine generating after steam turbine by steam pipework, the steam exhaust steam that described cooling tower receives steam turbine export pipeline by steam pipework is carried out cooling, and the entrance pipe that cooling water enters waste heat steam boiler by water pump and cold water pipeline recycles,
The export pipeline of described waste heat steam boiler also connects the entrance pipe of third level energy applications unit by another air pipe line, described third level energy applications unit comprises waste heat water-heating boiler and lithium bromide refrigerating unit, the entrance pipe of described waste heat water-heating boiler is connected with the export pipeline of waste heat steam boiler by air pipe line, the hot air that receives waste heat steam boiler discharge for utilizing carries out heat exchange, waste heat water-heating boiler produce hot water or heat to residential belt by hot water pipe, or be delivered to lithium bromide refrigerating unit by hot water pipe, freeze to residential belt by lithium bromide refrigerating unit, the entrance pipe that cooling water after heating or refrigeration is delivered to waste heat water-heating boiler by cold water pipeline and water pump recycles,
Between described heat storage can and described first order energy applications unit, also by air pipe line, another heat delivery pipeline is set, for ensureing all the time according in situation, described heat storage can continues to described first order energy applications unit heating by this air pipe line.
2. solar light-heat power-generation utilization system according to claim 1, is characterized in that: described energy conversion unit comprises the air compressor for compressing cool air and is connected by air pipe line with air compressor and is arranged on the air thermal collector on solar energy dish formula focusing system; Described solar energy dish formula focusing system and air thermal collector can be set to according to user demand multiple.
3. solar light-heat power-generation utilization system according to claim 1, is characterized in that: described first order energy applications unit is flue gas turbine expander.
4. solar light-heat power-generation utilization system according to claim 1, it is characterized in that: on many all the time according in situation, if the temperature in heat storage can is not enough to meet the generating of first order energy applications unit while requiring, described system also arranges air pipe line one for subsequent use, makes hot air in heat storage can be delivered to the waste heat steam boiler of energy applications unit, the second level by air pipe line one for subsequent use; If when the temperature in heat storage can is all not enough to meet the user demand of first order energy applications unit and energy applications unit, the second level, described system also arranges air pipe line two for subsequent use, makes hot air in heat storage can be delivered to the waste heat water-heating boiler of third level energy applications unit by air pipe line two for subsequent use.
CN201420229577.5U 2014-05-06 2014-05-06 Solar photothermal power generation comprehensive utilizing system Expired - Fee Related CN203809224U (en)

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Application Number Priority Date Filing Date Title
CN201420229577.5U CN203809224U (en) 2014-05-06 2014-05-06 Solar photothermal power generation comprehensive utilizing system

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016768A (en) * 2016-05-31 2016-10-12 大震锅炉工业(昆山)有限公司 Solar industrial heat energy system
CN107061202A (en) * 2017-03-20 2017-08-18 吴联凯 A kind of TRT of utilization solar energy
CN107905966A (en) * 2017-09-29 2018-04-13 山西三晋之窗新能源科技有限公司 Disc type solar energy heating, refrigeration, power generation combined system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106016768A (en) * 2016-05-31 2016-10-12 大震锅炉工业(昆山)有限公司 Solar industrial heat energy system
CN107061202A (en) * 2017-03-20 2017-08-18 吴联凯 A kind of TRT of utilization solar energy
CN107061202B (en) * 2017-03-20 2019-02-12 吴联凯 A kind of power generator using solar energy
CN107905966A (en) * 2017-09-29 2018-04-13 山西三晋之窗新能源科技有限公司 Disc type solar energy heating, refrigeration, power generation combined system

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