CN102759199A - Coiler heat-exchange evaporation system for trough-type solar photothermal power generation - Google Patents
Coiler heat-exchange evaporation system for trough-type solar photothermal power generation Download PDFInfo
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- CN102759199A CN102759199A CN2012102693867A CN201210269386A CN102759199A CN 102759199 A CN102759199 A CN 102759199A CN 2012102693867 A CN2012102693867 A CN 2012102693867A CN 201210269386 A CN201210269386 A CN 201210269386A CN 102759199 A CN102759199 A CN 102759199A
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- preheater
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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
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Abstract
The invention discloses a coiler heat-exchange evaporation system for trough-type solar photothermal power generation, relating to a heat-exchange evaporation system and aiming at solving the problems that equipment has hidden dangers in the operation process and is short in service life because large thermal stress can be generated by temperature difference of the traditional evaporation system for trough-type solar photothermal power generation. According to the coiler heat-exchange evaporation system, each of a preheater, an evaporator, an overheater and a reheater is internally provided with a heat exchange pipe, an inlet collecting pipe and an outlet collecting pipe; the heat exchange pipes in the preheater, the evaporator, the overheater and the reheater are snakelike heat exchange pipes, wherein one end of each heat exchange pipe is communicated with each inlet collecting pipe, and the other end of each heat exchange pipe is communicated with each outlet collecting pipe; the preheater, the evaporator and the overheater are communicated in series in sequence along a straight line; the reheater is communicated with the preheater, the evaporator and the overheater in parallel; and the outlet collecting pipe of the preheater and the inlet connecting pipe of the overheater are respectively communicated with an external steam pocket of the evaporator. The coiler heat-exchange evaporation system is used for trough-type solar photothermal power generation.
Description
Technical field
The present invention relates to a kind of coiled pipe heat exchange vapo(u)rization system, be specifically related to a kind of coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation.
Background technology
Along with the exhaustion day by day of fossil fuel energy, the exploitation of new energy fields such as wind energy, solar energy more and more comes into one's own, and especially solar light-heat power-generation demonstrates the potentiality of its development gradually.Solar light-heat power-generation is compared with thermal power generation, needs start and stop every day and frequently load adjustment fast, and therefore there is special requirement in fatigue strength and the life-span to its equipment especially vapo(u)rization system heat exchanger.The vapo(u)rization system of existing groove type solar photo-thermal power generation adopts conventional U type pipe shell-and-tube heat exchanger more; Because pressure-bearing is higher; This heat exchanger has thicker tube sheet usually, when start and stop or adjustment load, can produce very big thermal stress because the temperature difference exists; There is hidden danger in the equipment operation, and service life of equipment is short.
Summary of the invention
The present invention can produce very big thermal stress for the temperature difference of the vapo(u)rization system of the existing groove type solar photo-thermal power generation of solution; Cause the equipment operation to have hidden danger and the short problem of service life of equipment, and then a kind of coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation is provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: the coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation of the present invention comprises that preheater, evaporimeter, superheater, reheater, the external drum of evaporimeter, a plurality of down-comer and a plurality of tedge constitute; The external drum of said evaporimeter is interconnected through a plurality of down-comers and a plurality of tedge and evaporimeter; Be provided with heat exchanger tube, inlet header and outlet header in said preheater, evaporimeter, superheater and the reheater; Heat exchanger tube in said preheater, evaporimeter, superheater and the reheater is snakelike heat exchange tube; One end of heat exchanger tube is communicated with inlet header; The other end of heat exchanger tube is communicated with outlet header; Said preheater, evaporimeter, superheater are along yi word pattern connection in sequential series, and said reheater is communicated with preheater, evaporimeter, superheater are all parallelly connected, and the outlet header of preheater and the inlet header of superheater all are communicated with the external drum of evaporimeter.
The present invention has following beneficial effect:
Coiled pipe heat exchange vapo(u)rization system of the present invention adopts snakelike heat exchange tube; All heat exchangers of vapo(u)rization system do not have tube sheet; Therefore receive the restriction of thermal stress little; The toggle speed of whole vapo(u)rization system is compared with existing U type heat exchange of heat pipe vapo(u)rization system, and it is faster to have toggle speed, is more suitable for the requirement that solar light-heat power-generation needs start and stop every day and frequent rapid adjustment load;
Coiled pipe has good pliability, can eliminate the thermal stress that heat exchanger tube and housing differential expansion are caused, so vapo(u)rization system operation safety and reliability, has prolonged the service life of equipment, improves service life more than 20%; Evaporimeter is connected with the external drum of evaporimeter, in the external drum of evaporimeter the secondary water separator is set, and can realize carbonated drink separation better, so the moisture that the steam of vapo(u)rization system generation carries still less, and steam quality is higher.
Description of drawings
Fig. 1 is the overall structure flow chart that is used for the coiled pipe heat exchange vapo(u)rization system of groove type solar photo-thermal power generation of the present invention, and Fig. 2 is the front view of heat exchanger tube 8, inlet header 9 and outlet header 10 assemblings.
The specific embodiment
The specific embodiment one: combine Fig. 1～2 explanations; The coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation of this embodiment comprises that the external drum of preheater 1, evaporimeter 2, superheater 3, reheater 4, evaporimeter 5, a plurality of down-comer 6 and a plurality of tedge 7 constitute; The external drum 5 of said evaporimeter is interconnected with evaporimeter 2 through a plurality of down-comers 6 and a plurality of tedges 7; Be provided with heat exchanger tube 8, inlet header 9 and outlet header 10 in said preheater 1, evaporimeter 2, superheater 3 and the reheater 4; Heat exchanger tubes 8 in said preheater 1, evaporimeter 2, superheater 3 and the reheater 4 are snakelike heat exchange tube; One end of heat exchanger tube 8 is communicated with inlet header 9; The other end of heat exchanger tube is communicated with outlet header 10; Said preheater 1, evaporimeter 2, superheater 3 are along yi word pattern connection in sequential series, and said reheater 4 and preheater 1, evaporimeter 2, superheater 3 all parallel connection are communicated with, and the outlet header 10 of preheater 1 and the inlet header 9 of superheater 3 all are communicated with the external drum 5 of evaporimeter.
Said coiled pipe is at the heated surface bundle that spirals of shape in the shape of a spiral in cylinder.In the external drum of evaporimeter the secondary water separator is set.
Being connected all adopt between interface of the present invention and housing, heat exchanger tube and the collector is welded to connect; Disclosure risk when therefore vapo(u)rization system is moved is low; The plugging rate of after date heat exchanger tube is low when moving one section; Therefore can adopt lower design margin, the heat exchange area of whole vapo(u)rization system is reduced, practice thrift material.
The specific embodiment two: the quantity of this embodiment down-comer 6 is two～five.Other composition is identical with embodiment one with annexation.
The specific embodiment three: the quantity of this embodiment tedge 7 is three～six.Other composition is identical with embodiment one or two with annexation.
Operation principle:
High-pressure feed water from the high-pressure heater outlet at first gets into preheater 1; Water under high pressure is through the pipe side of preheater; High-pressure feed water is heated near saturation temperature and gets into evaporimeter 2 later on; High-pressure feed water is through the shell-side of evaporator 2, and cycles back and forth between the loop of a plurality of down-comers 6 and 7 formation of a plurality of tedge absorbs gasification latent heat and becomes steam later on mutually; Steam water interface is behind external drum 5 steam-water separators of evaporimeter, and saturation water continues circulation in evaporimeter 2, and saturated vapor then gets into superheater 3; Saturated vapor is through the pipe side of superheater 3, and saturated vapor becomes later superheated steam through heating and gets into the steam turbine high-pressure cylinder acting, and the steam turbine high-pressure cylinder exhaust gets into reheater 4; The high pressure cylinder exhaust walks to manage side, after heating, gets into turbine low pressure cylinder and continues the acting of expanding, and the route of the thermal source conduction oil circulation of vapo(u)rization system is just in time opposite with the route in carbonated drink loop; High temperature heat conductive oil is divided into two-way, and one the tunnel at first gets into superheater 3, through superheater 3 shell-sides; Get into evaporimeter 2 then; Through evaporator 2 pipe sides, get into preheater 1 at last, through the shell-side of preheater 1; Another road gets into reheater 4, through the shell-side of reheater 4, comes back to the solar energy mirror field after the low temperature conduction oil that comes out from preheater 1 and reheater 4 converges and absorbs heat, accomplishes a circulation.
Claims (3)
1. coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation; Said heat exchange vapo(u)rization system comprises that preheater (1), evaporimeter (2), superheater (3), reheater (4), the external drum of evaporimeter (5), a plurality of down-comer (6) and a plurality of tedge (7) constitute; The external drum of said evaporimeter (5) is interconnected with evaporimeter (2) through a plurality of down-comers (6) and a plurality of tedge (7); It is characterized in that: be provided with heat exchanger tube (8), inlet header (9) and outlet header (10) in said preheater (1), evaporimeter (2), superheater (3) and the reheater (4); Heat exchanger tube (8) in said preheater (1), evaporimeter (2), superheater (3) and the reheater (4) is snakelike heat exchange tube; One end of heat exchanger tube (8) is communicated with inlet header (9); The other end of heat exchanger tube (8) is communicated with outlet header (10); Said preheater (1), evaporimeter (2), superheater (3) are along yi word pattern connection in sequential series, and said reheater (4) is communicated with preheater (1), evaporimeter (2), superheater (3) are all parallelly connected, and the outlet header (10) of preheater (1) and the inlet header (9) of superheater (3) all are communicated with the external drum of evaporimeter (5).
2. the coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation according to claim 1, it is characterized in that: the quantity of down-comer (6) is two～five.
3. the coiled pipe heat exchange vapo(u)rization system that is used for the groove type solar photo-thermal power generation according to claim 1 and 2, it is characterized in that: the quantity of tedge (7) is three～six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102693867A CN102759199A (en) | 2012-07-31 | 2012-07-31 | Coiler heat-exchange evaporation system for trough-type solar photothermal power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102693867A CN102759199A (en) | 2012-07-31 | 2012-07-31 | Coiler heat-exchange evaporation system for trough-type solar photothermal power generation |
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| CN102759199A true CN102759199A (en) | 2012-10-31 |
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| CN2012102693867A Pending CN102759199A (en) | 2012-07-31 | 2012-07-31 | Coiler heat-exchange evaporation system for trough-type solar photothermal power generation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823246A (en) * | 2016-03-25 | 2016-08-03 | 青海中控太阳能发电有限公司 | Heat exchange system |
| CN106247694A (en) * | 2016-08-30 | 2016-12-21 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of photo-thermal power generation autoclave vaporizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201028489Y (en) * | 2007-04-26 | 2008-02-27 | 青岛海晶化工集团有限公司 | Boiler used for waste heat recovery in synthesis of chloroethylene |
| CN201096060Y (en) * | 2007-09-22 | 2008-08-06 | 包头市爱能控制工程有限责任公司 | Solar energy generator set |
| CN201190639Y (en) * | 2008-05-22 | 2009-02-04 | 吴中华 | High-power solar storage type steam turbine generation system |
-
2012
- 2012-07-31 CN CN2012102693867A patent/CN102759199A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201028489Y (en) * | 2007-04-26 | 2008-02-27 | 青岛海晶化工集团有限公司 | Boiler used for waste heat recovery in synthesis of chloroethylene |
| CN201096060Y (en) * | 2007-09-22 | 2008-08-06 | 包头市爱能控制工程有限责任公司 | Solar energy generator set |
| CN201190639Y (en) * | 2008-05-22 | 2009-02-04 | 吴中华 | High-power solar storage type steam turbine generation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823246A (en) * | 2016-03-25 | 2016-08-03 | 青海中控太阳能发电有限公司 | Heat exchange system |
| CN106247694A (en) * | 2016-08-30 | 2016-12-21 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of photo-thermal power generation autoclave vaporizer |
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Application publication date: 20121031 |