CN103528218A - Solar DSG system with heat storage function - Google Patents
Solar DSG system with heat storage function Download PDFInfo
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- CN103528218A CN103528218A CN201310465324.8A CN201310465324A CN103528218A CN 103528218 A CN103528218 A CN 103528218A CN 201310465324 A CN201310465324 A CN 201310465324A CN 103528218 A CN103528218 A CN 103528218A
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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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Abstract
The invention discloses a solar DSG system with the heat storage function, and belongs to the solar energy optical-heat use technology in the field of new energy resources. The current solar heat power generation technology with a heat storage device mainly solves the problems that the investment cost is high, the power generating efficiency is low and the economical efficiency is low. The DSG technology is adopted to mainly solve the problems that the electric energy quality is poor and all-weather stable operation can not be achieved. The technology combining heat storage and DSG mainly achieves the aim of system trackless switching and control. The concept of a micro-resistance steam heater is introduced into the solar DSG system. The solar DSG system with the heat storage function is mainly composed of solar DSG collector arrays, solar heat storage medium collector arrays, the micro-resistance steam heater, a heat medium tank, a refrigerant tank, a steam generator, a medium liquid pump, water feeding adjustment valves, medium liquid adjustment valves, a heat medium adjustment valve and an evaporator adjustment valve. Fed water is directly heated by the solar DSG collector arrays to be superheated steam to be delivered to a steamer generator unit through the steam side of the micro-resistance steam heater. The micro-resistance steam heater has the structural features that the flow resistance of the steam side is small, and the steam at the unqualified temperature is further heated by heat media to be the qualified superheated steam after entering the micro-resistance steam heater.
Description
Technical field
The invention belongs to the solar energy heat utilization technology in new forms of energy or renewable energy source domain, is a kind of in photo-thermal power generation technology, is mainly used in solar electrical energy generation, heat supply, distributed energy, realizes heat, electricity, cold round-the-clock coproduction alliance.
Background technology
Solar light-heat power-generation technology needs because considering round-the-clock running at present, generally all configure heat-storing device, by the higher heat accumulation matchmaker of solar energy heat collector heating boiling point, heated heat accumulation matchmaker is left in heating agent tank, by heat exchanger, heat is reached to working-medium water again, produce superheated steam pushing turbine acting generating.The subject matter of prior art is that system has increased heat accumulation and heat-exchange device, has greatly increased equipment investment and matchmaker's liquid expense, and due to the existence of secondary heat transfer temperature difference, has also reduced the conversion efficiency of heat energy to electric energy.Also having the Direct Steam Generation of employing (DSG) is abroad live (open) steam generation technology, this technology has improved conversion efficiency of thermoelectric, has reduced equipment investment, has improved economy, but the energy degradation of generating electricity, can not round-the-clock stable operation.For addressing these problems, also have the technical scheme that the two is combined at present, but still the system that exists is switched and the problem of controlling.
Technical background reference:
Above background technology can be with reference to the architectural feature of current trough type solar power generation technology, groove type solar heat collector and system thereof, and patent documentation: a kind of groove type solar heat collector ZL201120049309.1 and 201110047054.X.
Summary of the invention
Current solar energy thermal-power-generating technology is mainly to solve the problem that investment cost is high, generating efficiency is low, less economical as adopted heat-storing device, as to adopt DSG technology be mainly the problem that will solve the poor and round-the-clock stable operation of the quality of power supply, as adopted heat accumulation and DSG combination technology, be mainly to want resolution system without the problem of vestige switching and control.
The present invention has set forth a kind of technical scheme that DSG technology combines with heat-storage technology, has introduced micro-these new ideas of resistance steam heater.There is (DSG) system in the solar energy live (open) steam with heat accumulation, mainly solar energy DSG collector array, solar energy heat-storage matchmaker collector array, micro-resistance steam heater, heating agent tank, refrigerant tank, steam generator, matchmaker's liquid pump, feed-regulating valve, matchmaker's liquid control valve, heating agent control valve and evaporimeter control valve, is consisted of.Feedwater is directly heated into superheated steam and delivers to Turbo-generator Set through the vapour side of micro-resistance steam heater by solar energy DSG collector array.From matchmaker's liquid of refrigerant tank, by the pumping of matchmaker's liquid pump, after the heating of solar energy heat-storage matchmaker collector array, deliver to heating agent tank stores.The architectural feature of micro-resistance steam heater is that the flow resistance of vapour side is small.Collector array generally has certain piping feeding distance apart from Turbo-generator Set, and micro-resistance steam heater just utilizes this segment distance to arrange, substitutes one section of jet chimney, to reduce as far as possible trunking loss.The underproof steam of temperature is subject to managing respectively the further heating of outer heating agent after entering micro-resistance steam heater in many straight pipelines arranged side by side, finally in convergence device, converges output endways.Let slip hot heating agent and enter the further heat release of steam generator from micro-resistance steam heater out, also feedwater is herein heated into steam, this steam is the vapour side of resistance steam heater also and in a subtle way, to obtain further heating, until temperature is qualified.From steam generator matchmaker's liquid out, enter refrigerant tank stand-by.Steam generator has comprised feedwater heating, evaporation and overheated three active sections, can integratedly make, and also can separately make.
Each place, row medium inlet at solar energy DSG collector array and heat accumulation matchmaker collector array is equipped with flow control valve, in the heating agent import department of micro-resistance steam heater and the feed-water inlet place of steam generator, be also provided with flow control valve, guarantee to meet the traffic demand of each row heat collector.
Radiation intensity setting value when above solar energy DSG collector array adopt outlet steam temperature constant/regulate the control model of feedwater flow, when radiation intensity is attenuated to setting value, solar energy DSG collector array adopts the constant control model a less setting value of feedwater flow, no matter radiation is strong and weak, solar energy heat-storage matchmaker collector array all adopt outlet matchmaker temperature constant/regulate the control model of matchmaker's flow quantity, micro-resistance steam heater adopt outlet steam temperature constant/regulate the control model of matchmaker's flow quantity, steam generator adopt outlet steam temperature constant/regulate the control model of feedwater flow.
Accompanying drawing explanation
Accompanying drawing is solar energy live (open) steam generation (DSG) system diagram with heat accumulation.In figure: 1-solar energy DSG collector array, 2-solar energy heat-storage matchmaker collector array, the micro-resistance steam heater of 3-, 4-heating agent tank, 5-refrigerant tank, 6-steam generator, 7-matchmaker's liquid pump, 8-feed-regulating valve, 9-matchmaker's liquid control valve, 10-heating agent control valve, 11-evaporimeter control valve, HS-superheated steam, FW-feedwater, HM-heating agent, CM-refrigerant.
The specific embodiment
There is (DSG) system as shown in drawings in the solar energy live (open) steam with heat accumulation, mainly, by solar energy DSG thermal-arrest subsystem, solar energy heat-collecting heat-storage subsystem forms (be configured to Turbo-generator Set subsystem, feedwater heating deoxygenation subsystem and regulation and control system again and just formed complete solar heat power generation system).
Solar energy DSG thermal-arrest subsystem is mainly comprised of slot type DSG collector array (1) and feed-regulating valve (8) thereof and pipe-line system.According to place situation, many heat collectors are arranged in to matrix, with pipeline, each row are concatenated, then carry out parallel connection, just form slot type DSG collector array (1).Each series winding row water inlet is provided with a feed-regulating valve (8).Feedwater (FW) is directly heated into superheated steam (HS) and is delivered to Turbo-generator Set acting generating through micro-resistance steam heater (3) by solar energy DSG collector array (1) after deoxygenation heating.
Solar energy heat-collecting heat-storage subsystem is mainly comprised of solar energy heat-storage matchmaker collector array (2), heating agent tank (4), refrigerant tank (5), steam generator (6), micro-resistance steam heater (3), matchmaker's liquid pump (7), matchmaker's liquid control valve (9), heating agent control valve (10) and evaporimeter control valve (11).According to place situation, many heat collectors are lined up to matrix, contact in parallel with pipeline again, form solar energy heat-storage matchmaker's collector array (2), the Mei Ye import department being listed as at each series winding arranges matchmaker's liquid control valve (9).When place is arranged, micro-resistance steam heater (3) is arranged on the steam pipework that is exported to Turbo-generator Set of slot type DSG collector array (1), substitutes one section of jet chimney.
From the refrigerant (CM) of refrigerant tank (5), after delivering to solar energy heat-storage matchmaker collector array (2) heating, matchmaker's liquid pump (7) and matchmaker's liquid control valve (9) be stored in heating agent tank (4), when micro-resistance steam heater (3) or steam generator (6) need heating agent (HM) heating, heating agent passes through heating agent control valve (9) advanced person resistance steam heater (3) in a subtle way, to flowing to steam generator (6) after steam heat release, further heat release in steam generator (6), to feed water (FW) be heated into superheated steam (HS), it is stand-by that matchmaker's liquid finally enters refrigerant tank (5), its steam enters micro-resistance steam heater (3) in the lump with the superheated steam (HS) from DSG groove type heat collector array (1).Micro-resistance steam heater (3) is comprised of top distributor, many straight pipelines arranged side by side, end convergence device and cans, and there is insulation can outside, makes its architectural feature show as steam side flow resistance small.The underproof steam of temperature is subject to the further heating of heating agent (HM), reaches and delivers to Turbo-generator Set acting generating after main steam condition requirement.Feedwater heating, evaporation and overheated three active sections in steam generator (6), have been comprised.
Claims (1)
1. there is (DSG) system in the solar energy live (open) steam with heat accumulation, it is characterized in that: mainly by solar energy DSG collector array (1), solar energy heat-storage matchmaker collector array (2), micro-resistance steam heater (3), heating agent tank (4), refrigerant tank (5), steam generator (6), matchmaker's liquid pump (7), feed-regulating valve (8), matchmaker's liquid control valve (9), heating agent control valve (10) and evaporimeter control valve (11) form, feedwater is directly heated into superheated steam and is delivered to Turbo-generator Set through the vapour side of micro-resistance steam heater (3) by solar energy DSG collector array (1), the vapour side flow resistance of micro-resistance steam heater (3) is small, and alternative one section of jet chimney, the underproof steam of temperature obtains the further heating of heating agent (HM) therein, let slip hot heating agent (HM) and from micro-resistance steam heater (3), enter further heat release of steam generator (6) out, feedwater is heated into steam, this steam also and in a subtle way the vapour side of resistance steam heater (3) to obtain further heating, from steam generator (6) matchmaker's liquid out, enter refrigerant tank (5), steam generator (6) has comprised feedwater heating, evaporation and overheated three active sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465324.8A CN103528218A (en) | 2013-09-29 | 2013-09-29 | Solar DSG system with heat storage function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465324.8A CN103528218A (en) | 2013-09-29 | 2013-09-29 | Solar DSG system with heat storage function |
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| CN103528218A true CN103528218A (en) | 2014-01-22 |
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| CN201310465324.8A Pending CN103528218A (en) | 2013-09-29 | 2013-09-29 | Solar DSG system with heat storage function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700338A (en) * | 2016-02-22 | 2018-10-23 | 玻点太阳能有限公司 | The thermal storage and circuit that are generated for solar steam and associated system and method |
-
2013
- 2013-09-29 CN CN201310465324.8A patent/CN103528218A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700338A (en) * | 2016-02-22 | 2018-10-23 | 玻点太阳能有限公司 | The thermal storage and circuit that are generated for solar steam and associated system and method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
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| WD01 | Invention patent application deemed withdrawn after publication |