CN205714612U - The anti-condensation structure of trough type solar power generation and solar parabolic through power generation system - Google Patents
The anti-condensation structure of trough type solar power generation and solar parabolic through power generation system Download PDFInfo
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- CN205714612U CN205714612U CN201620539903.1U CN201620539903U CN205714612U CN 205714612 U CN205714612 U CN 205714612U CN 201620539903 U CN201620539903 U CN 201620539903U CN 205714612 U CN205714612 U CN 205714612U
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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
Abstract
nullThis utility model is a kind of anti-condensation structure of trough type solar power generation and solar parabolic through power generation system，The pipeline of collection thermal sub-system comprises the oil expansion tank and Heat-transfer Oil Pump set gradually，Oil expansion tank top sets air relief valve，Its outlet is connected with Heat-transfer Oil Pump outlet，Also comprise fuel reserve tank，Its relative expansion fuel tank low position，Its two ends are connected to the inlet and outlet of oil expansion tank respectively by the unrestrained pipeline of conduction oil，Unrestrained valve is set respectively on the unrestrained pipeline of conduction oil，Filling pump it is also associated with between oil expansion tank and fuel reserve tank，It has been arranged in parallel heat accumulation subsystem with collection thermal sub-system、Steam generation subsystem，Steam subsystem is connected with power generation sub-system，Anti-condensation structure of the present utility model can be greatly reduced the heat loss during nighttime cycle of the conduction oil in solar parabolic through power generation system，Substantially reduce the natural gas consumption of trough type solar power generation station aid system.
Description
Technical field
This utility model is related to a kind of novel slot anti-condensation structure of solar energy thermal-power-generating conduction oil and arranges this anti-condensation
The solar parabolic through power generation system of structure.
Background technology
Trough type solar power generation full name is " generating of groove type paraboloid light collection solar ", and its device is a kind of by groove
Sunlight is reflected and focuses on thermal-collecting tube by formula parabolic reflector, the heat-conducting fluid in heating thermal-collecting tube, heat conduction stream in pipe
Water is heated into water vapour by heat-exchange system by body, drives the clean energy resource of Turbo-generator Set generating to utilize device.
Existing solar parabolic through power generation system mainly includes following five subsystems.
(1) collection thermal sub-system, is the core of system, is made up of groove type paraboloid illuminator, receptor and tracking device.Heat
Receptor uses electron tubes type；Tracking mode uses one-dimensional tracking, has north and south, thing arrangement.
(2) steam generation subsystem, is made up of preheater, steam generator, superheater and reheater.When working medium is heat conduction
During oil, after conduction oil is heated in employing double loop, i.e. receptor, enters and steam generation subsystem produces superheated steam, mistake
Vapours enters the generating of turbine generator subsystem.Adopt water as working medium, can directly produce water vapour.
(3) power generation sub-system, basic composition is similar with conventional power generation usage equipment, but needs a kind of dedicated control device of configuration,
For the switching between solar heating system and auxiliary energy system, or heat with supplementary energy for solar heating system
System hybrid working.
(4) heat accumulation subsystem, under nighttime conditions, solar heat power generation system can rely on the energy that hot energy-storage system stores
The amount maintenance system properly functioning regular hour.
(5) supplementary energy subsystem.Night, the cloudy day or other without sunlight in the case of, auxiliary can be used
Energy resource system heat supply.
Trough type solar power generation technology is at present the most ripe, is also currently the only to realize commercialized running
Solar energy thermal-power-generating technology.The advantage of trough type solar power generation technology is: system structure is compact, and the radiation of its solar heat is received
Acquisition means floor space 30%-50% less than tower system；Component form needed for the manufacture of groove type paraboloid heat collector is not
Many, easily realize standardization, be suitable for batch production；Parabolic trough concentrators for focusing sunlight is processed simple, manufactures
Cost is relatively low；Solar groove type generating is not required to the highest building, and it is multiple that its tracking system only needs one-dimensional on-axis tracking to realize
The real-time tracking of heat collector, reduces tracking system difficulty and expense.
At present, the major technique restriction difficult point of trough type solar power generation technology is that heat absorption heat-transfer working medium (conduction oil) is by material
Material characteristic limits, and can only be heated to about 390 DEG C, and the vapor (steam) temperature of generation is about 370 DEG C, and its freezing point is 12 DEG C, at electricity
Stand run duration, should keep full factory conduction oil that solidification phenomenon does not occur.As it is shown in figure 1, stop transport at solar energy heat-collection field night and
During very cold, coordinated by the anti-condensation heating boiler of conduction oil 1 pump anti-condensation with conduction oil 2, anti-condensation with conduction oil in reaching pipeline
Effect.When conduction oil temperature reaches 50 DEG C in system, start the anti-condensation pattern of conduction oil, driven by conduction oil anti-condensation pump 2 and lead
Deep fat passes through the anti-condensation heating boiler of conduction oil 1, and conduction oil progressively lifts temperature to 150 DEG C.When conduction oil temperature reaches about 150 DEG C
Time, then exit the anti-condensation pattern of conduction oil.The most existing system is also arranged on reflux pipe oil expansion tank 3 and with the use of
Heat-transfer Oil Pump 4.
But in above-mentioned existing trough type solar power generation conduction oil anti-condensation system, conduction oil constantly circulates in system, is
System heat loss is bigger, in addition it is also necessary to relying on burning natural gas is that conduction oil heats up to prevent conduction oil from solidifying, and consumes substantial amounts of natural
The gas energy, power plant cost is high.
Utility model content
This utility model is solved the technical problem that i.e. is providing a kind of anti-condensation structure of trough type solar power generation and employing
The solar parabolic through power generation system of this anti-condensation structure.
The technological means that this utility model is used is as described below.
A kind of anti-condensation structure of trough type solar power generation, pipeline comprises the oil expansion tank and Heat-transfer Oil Pump set gradually,
Described oil expansion tank top sets air relief valve, and the outlet of this air relief valve is connected with Heat-transfer Oil Pump outlet, also comprises fuel reserve tank, its two ends
It is connected to the inlet and outlet of oil expansion tank respectively by the unrestrained pipeline of conduction oil, the unrestrained pipeline of conduction oil respectively sets drain valve
Door, is also associated with filling pump between described oil expansion tank and fuel reserve tank.
Described fuel reserve tank is low position.
A kind of solar parabolic through power generation system comprising above-mentioned anti-condensation structure, this electricity generation system comprise collection thermal sub-system and
The heat accumulation subsystem of setting connected in parallel, steam generation subsystem, steam subsystem is also connected with power generation sub-system, described slot type
The anti-condensation structure of solar energy thermal-power-generating is arranged on the thermal conductive oil pipeline of collection thermal sub-system, be arranged at collection heat mirror field line entry it
Front is optimal.
Technique effect produced by this utility model: in the cyclic process heat loss of conduction oil can be greatly reduced, simultaneously
Conduction oil in fuel reserve tank is the most extremely low due to its heat dissipation capacity of Insulation, hence it is evident that effectively reduce trough type solar power generation station auxiliary
The natural gas consumption of auxiliary system.
As a example by the 50MW conventional groove solar generator project using existing anti-condensation pattern, annual for heating and unit
Starting the required amount of natural gas consumed is 600,000 Nm3, and it is used for the natural gas consumption about 240 ~ 3,000,000 that system conduction oil is anti-condensation
Nm3, it can be seen that, in conventional groove solar energy thermal-power-generating year project, the anti-condensation gas consumption of conduction oil accounts for all natural gas consumption
More than 80%.By using anti-condensation system of the present utility model, can save every year for the anti-condensation required natural QI consumed of conduction oil
Amount, greatly reduces trough type solar power generation project to the dependence of additional natural gas and the cost in slot type power plant.
Accompanying drawing explanation
Fig. 1 is existing solar parabolic through power generation system and anti-condensation device schematic diagram.
Fig. 2 is the most preferred embodiment schematic diagram of this utility model solar parabolic through power generation system and anti-condensation structure.
Detailed description of the invention
The anti-condensation structure of trough type solar power generation that this utility model relates to, comprises on thermal conductive oil pipeline and sets gradually
Oil expansion tank 3 and Heat-transfer Oil Pump 4, described oil expansion tank 3 top sets air relief valve 5, the tube outlet of air relief valve 5 and Heat-transfer Oil Pump 4
Outlet connects.Also include fuel reserve tank 6, its two ends respectively by the unrestrained pipeline of conduction oil be connected to oil expansion tank 3 import and
Outlet, the unrestrained pipeline of conduction oil sets unrestrained valve 71,72 respectively, is also associated with filling pump between oil expansion tank 3 and fuel reserve tank 6
8。
Above-mentioned anti-condensation structure, is applied in solar parabolic through power generation system, as in figure 2 it is shown, comprise collection thermal sub-system A and
The heat accumulation subsystem B of setting connected in parallel, steam generation subsystem C, steam subsystem C is also connected with power generation sub-system D.Above-mentioned
Anti-condensation structure is arranged on the pipeline of collection thermal sub-system A.Heat accumulation subsystem B can use as illustrated in the drawing by cold fuse salt
Tank, heat fusing salt cellar and conduction oil-fuse salt heat exchanger composition, or use other fuse salt heat storage structure existing.Steam
Vapour generation subsystem C as shown in FIG., comprises superheater, vaporizer and the preheater being sequentially connected with, and is separately provided
Hot device.Power generation sub-system D as shown in FIG., comprises steam turbine, condensing plant and the condensate pump arranged in order.
For existing solar parabolic through power generation system, the anti-condensation structure of above-mentioned trough type solar power generation is typically arranged
Before the collection heat mirror field line entry of collection thermal sub-system A, certainly, it is arranged at other position, as long as this practicality can be reached
Novel purpose and effect, all within protection domain of the present utility model.
The anti-condensation process of the optimal case study on implementation of anti-condensation structure of the present utility model described briefly below.
When system is properly functioning, oil expansion tank 3 top is not less than the protection nitrogen of 1.2MPa and covers, and is used for preventing from leading
Deep fat is generating gasification when properly functioning.After night complete plant shutdown, in oil expansion tank 3, leave a certain amount of conduction oil, conduction oil
Temperature is about 290 DEG C.It is installed on the air relief valve 5 at oil expansion tank 3 top by regulation, is gradually lowered nitrogen pressure in oil expansion tank 3
Power, along with the reduction of nitrogen pressure in oil expansion tank 3, according to Dalton's law (of partial pressures), in oil expansion tank 3, conduction oil gradually gasifies
Become conduction oil steam.Conduction oil steam is by Pipeline transport to Ji Rejingchang, steam generation subsystem C and heat accumulation subsystem B
Thermal conductive oil pipeline in, liquid heat conductive oil then enters low position through conduction oil unrestrained pipeline under the promotion of conduction oil steam
In fuel reserve tank 6, the reason arranged due to fuel reserve tank low level, the conduction oil of liquid is along with natural grade is from flowing in fuel reserve tank 6.For
Conduction oil liquid level in maintenance oil expansion tank 3, conduction oil that sub-fraction is transported in fuel reserve tank 6 is pumped into by filling pump 8
Continue in oil expansion tank 3 to become conduction oil steam, until whole liquid heat conductive oil are sent in fuel reserve tank 6 in system.Fuel reserve tank
Interior conduction oil carries out corresponding Insulation, and can adding electric heater, to carry out system anti-condensation.When all becoming in thermal conductive oil pipeline
After conduction oil steam, turn off whole valves on pipeline, conduction oil steam is sealed up for safekeeping in pipeline, along with the reduction of nocturnal temperature,
Conduction oil steam is gradually condensed into a small amount of liquid heat conductive oil, covers at BOP.Along with the lasting reduction of temperature, heat conduction oil temperature
Degree is then condensed into solid-state less than 12 DEG C.Oil circulation owing to there is not liquid heat conductive in system, greatly reduce in cyclic process and lead
The heat loss of deep fat, simultaneously the conduction oil in fuel reserve tank due to its heat dissipation capacity of Insulation the most extremely low, night can be greatly reduced
The anti-condensation required natural gas consumption consumed of system.
When unit starting next day, close the air relief valve 5 on oil expansion tank 3 and conduction oil drain valve 71,72, be gradually increased
Nitrogen pressure in oil expansion tank 3, gradually squeezes in oil expansion tank 3 by filling pump 8 by liquid heat conductive oil, by Heat-transfer Oil Pump 4
Pump in full factory heat-conducting oil system pipeline.Along with high temperature heat conductive oil is pumped in system, cover a small amount of liquid at BOP
Or solid-state conduction oil gradually heats up, along with intrasystem a large amount of high temperature heat conductive oils continue cycling through.
Claims (4)
1. the anti-condensation structure of trough type solar power generation, pipeline comprises the oil expansion tank (3) and Heat-transfer Oil Pump set gradually
(4), it is characterised in that described oil expansion tank (3) top sets air relief valve (5), the outlet of this air relief valve (5) and Heat-transfer Oil Pump (4)
Outlet connects, and also comprises fuel reserve tank (6), and its two ends are connected to the import of oil expansion tank (3) respectively by the unrestrained pipeline of conduction oil
And outlet, the unrestrained pipeline of conduction oil respectively sets unrestrained valve (71,72), also connects between described oil expansion tank (3) and fuel reserve tank (6)
It is connected to filling pump (8).
2. the anti-condensation structure of trough type solar power generation as claimed in claim 1, it is characterised in that described fuel reserve tank (6) is low
Position is arranged.
3. the solar parabolic through power generation system of the anti-condensation structure comprising claim 1 or 2, it is characterised in that comprise collection
The heat accumulation subsystem (B) of thermal sub-system (A) and setting connected in parallel, steam generation subsystem (C), steam subsystem (C) also with
Power generation sub-system (D) connects, and the anti-condensation structure of described trough type solar power generation is arranged at the thermal conductive oil pipeline of collection thermal sub-system (A)
On.
4. solar parabolic through power generation system as claimed in claim 3, it is characterised in that described trough type solar power generation is prevented
Before concretio is arranged at the collection heat mirror field line entry of collection thermal sub-system (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620539903.1U CN205714612U (en) | 2016-06-06 | 2016-06-06 | The anti-condensation structure of trough type solar power generation and solar parabolic through power generation system |
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| CN201620539903.1U CN205714612U (en) | 2016-06-06 | 2016-06-06 | The anti-condensation structure of trough type solar power generation and solar parabolic through power generation system |
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| CN205714612U true CN205714612U (en) | 2016-11-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180657A (en) * | 2017-12-27 | 2018-06-19 | 武汉都市环保工程技术股份有限公司 | Heat conduction reconditioner and trough solar power generation system |
| CN114111061A (en) * | 2021-11-25 | 2022-03-01 | 斯玛特储能技术有限公司 | Groove type heat collection field boosting mixed oil injection adjusting system and oil temperature adjusting method |
-
2016
- 2016-06-06 CN CN201620539903.1U patent/CN205714612U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180657A (en) * | 2017-12-27 | 2018-06-19 | 武汉都市环保工程技术股份有限公司 | Heat conduction reconditioner and trough solar power generation system |
| CN114111061A (en) * | 2021-11-25 | 2022-03-01 | 斯玛特储能技术有限公司 | Groove type heat collection field boosting mixed oil injection adjusting system and oil temperature adjusting method |
| CN114111061B (en) * | 2021-11-25 | 2022-07-05 | 斯玛特储能技术有限公司 | Groove type heat collection field boosting mixed oil injection adjusting system and oil temperature adjusting method |
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