CN109812789A - A kind of groove type solar photo-thermal power generation steam generating system - Google Patents
A kind of groove type solar photo-thermal power generation steam generating system Download PDFInfo
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- CN109812789A CN109812789A CN201910119462.8A CN201910119462A CN109812789A CN 109812789 A CN109812789 A CN 109812789A CN 201910119462 A CN201910119462 A CN 201910119462A CN 109812789 A CN109812789 A CN 109812789A
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Abstract
The present invention relates to a kind of groove type solar photo-thermal power generation steam generating systems, which is characterized in that only includes superheater, high temperature reheater, low-temperature reheater and evaporator.The present invention is on the basis of existing, reduce pre-heater apparatus, it only include superheater, high temperature reheater, low-temperature reheater and evaporator, system water supply is directly entered evaporator and is evaporated, and pipe-line system is also more simplified, this is conducive to reduce whole system occupied space, system stability and safety are improved, system is made to become easier to control.The conduction oil exported from high temperature reheater need to enter evaporator heat exchange, therefore export oil temperature and improve, this is conducive to the heat exchange efficiency for improving high temperature reheater, reduce the heat exchange area of equipment.Conduction oil flash-pot into low-temperature reheater comes, although oil temperature is lower at this time, heat exchange area needed for low-temperature reheater increases, and equipment increase is limited, and the oil temperature of low-temperature reheater outlet remains unchanged, this is conducive to the rate of heat transfer for increasing equipment.
Description
Technical field
The present invention relates to a kind of groove type solar photo-thermal power generation steam generating systems.
Background technique
Solar light-heat power-generation is considered as following one of the best alternative for replacing coal electricity, it has also become renewable energy neck
The hot spot of domain development and application.Nearest 30 years, photo-thermal power generation developing steps were rapid.Solar energy thermal-power-generating is generally termed light collecting
Solar power generation obtains thermal energy by aggregation solar radiation, thermal energy is converted to high-temperature steam, steam drive steam turbine power generation.
Current solar energy thermal-power-generating can mainly be divided into slot type power generation, tower-type electricity generation, Fresnel and dish according to solar energy acquisition mode
Formula power generation etc..Currently, slot type photo-thermal power generation technology is more mature, using universal, existing slot type steam generating system included
Hot device, high temperature reheater, low-temperature reheater, evaporator and preheater, as shown in Figure 1:
1. system is run, the thermal conductivity hot oil that comes from hot tank one to be divided to through piping 1 be two strands, one is flowed through piping 2
Enter heat reservoir and carry out heat accumulation, another stock-traders' know-how piping 3 is divided into two strands again after flowing into heat-exchange system, one is flowed into through piping 4
Superheater a shell side exchanges heat, and another stock-traders' know-how piping 5 flows into high temperature reheater b shell side and exchanges heat.Through superheater a and again
After hot device b heat exchange, superheater a shell-side outlet conduction oil, which enters after pipeline 6, to be entered evaporator c tube side heating water by pipeline and is allowed to steam
Hair, the conduction oil come out from evaporator c tube side enter preheater e through piping 7 again and exchange heat with water, finally go out from preheater
The cold conduction oil come successively enters cold tank by pipeline 8,9.
2. being exchanged heat from the conduction oil of high temperature reheater b shell-side outlet by pipeline 10 into low-temperature reheater d, from low temperature
The cold conduction oil that reheater d shell side comes out successively flows into cold tank through pipeline 11,9.
3. system water supply is directly entered preheater e tube side through pipeline 12, evaporator is entered by pipeline 13 after preheated and is evaporated,
Saturated vapor is overheated by pipeline 14 into superheater a tube side, and the main steam after overheat goes to turbine high-pressure through pipeline 15
Cylinder.Cold reheated steam is first heated by pipeline 16 into low-temperature reheater d tube side, after high temperature reheater b is entered by pipeline 17 again
Tube side goes to turbine low pressure cylinder by pipeline 18 after reheat heat steam by heat-conducting oil heating.
4. evaporator c is equipped with continuous blowdown mouth and periodical blowdown mouth, when system is run, water quality situation need to be regarded and carry out blowdown.
Periodical blowdown water is discharged into regular unloading container by pipeline 19, and continuous blowdown water is discharged into continuous blowdown flash tank by pipeline 20.
Steam generating system is as an important system in slot type photo-thermal power generation, and occupied space is larger, higher cost, because
This optimization system technique has very practical meaning.
Summary of the invention
A kind of the object of the present invention is to provide structures simple, the lesser steam generating system of occupied space.
In order to achieve the above object, the technical solution of the present invention is to provide a kind of groove type solar photo-thermal power generation steam hairs
Raw system, which is characterized in that only include superheater, high temperature reheater, low-temperature reheater and evaporator, thermal conductivity hot oil is divided into two
Stock, one thermal conductivity hot oil flow into heat reservoir, and another strand of thermal conductivity hot oil is divided into two strands again, is respectively defined as thermal conductivity hot oil one and heat
Conduction oil two；
Thermal conductivity hot oil one flows into the shell side of superheater, the tube-side inlet of superheater and evaporation via the shell side inlet of superheater
The shell-side outlet of device is connected, and flows into the thermal conductivity hot oil one of the shell side of superheater and enters the pipe of superheater via the shell side of evaporator
The steam of journey carries out heat exchange and generates superheated steam, and superheated steam is sent to steamer by the tube side outlet of superheater as main steam
Machine high pressure cylinder, the thermal conductivity hot oil one after heat exchange are defined as conduction oil one, and conduction oil one is flowed out via the shell-side outlet of superheater；Heat
Conduction oil two via high temperature reheater shell side inlet flow into high temperature reheater shell side, the tube-side inlet of high temperature reheater with it is low
The tube side outlet of warm reheater is connected, the thermal conductivity hot oil two and the tube side via low-temperature reheater for flowing into the shell side of high temperature reheater
Heat exchange is carried out into the cold reheated steam after the heating of the tube side of high temperature reheater and generates reheat heat steam, and reheat heat steam passes through
The tube side outlet of high temperature reheater is sent to turbine low pressure cylinder, and the thermal conductivity hot oil two after heat exchange is defined as conduction oil two, thermally conductive
Oil two is flowed out via the shell-side outlet of high temperature reheater；
The conduction oil one for flowing out the shell-side outlet of superheater is admitted to the tube side of evaporator, pipe of the conduction oil one in evaporator
The system water supply for the shell side for being admitted to evaporator with the shell side inlet via evaporator in journey carries out heat exchange and generates for being sent into
The steam of the tube side of hot device, at this point, the conduction oil two of the shell-side outlet of outflow high temperature reheater is admitted to the shell of low-temperature reheater
Journey, conduction oil two in the shell side of low-temperature reheater with the pipe of low-temperature reheater is admitted to via the tube-side inlet of low-temperature reheater
The cold reheated steam of journey carries out the cold reheated steam after the heating of tube side of the heat exchange generation for being sent into high temperature reheater；
Or the conduction oil one and the outflow shell-side outlet for flowing out high temperature reheater of the shell-side outlet of outflow superheater
Conduction oil two mix after be admitted to the tube side of evaporator, conduction oil enters in the tube side of evaporator with via the shell side of evaporator
The system water supply for the shell side that mouth is admitted to evaporator carries out the steam generated for being sent into the tube side of superheater that exchanges heat, at this point, stream
The conduction oil of the tube side of evaporator is admitted to the shell side of low-temperature reheater out, conduction oil in the shell side of low-temperature reheater with via
The cold reheated steam that the tube-side inlet of low-temperature reheater is admitted to the tube side of low-temperature reheater carries out heat exchange and generates for being sent into height
Cold reheated steam after the heating of the tube side of warm reheater.
Preferably, when the conduction oil one of the shell-side outlet of outflow superheater is admitted to the tube side of evaporator, and outflow high temperature
When the conduction oil two of the shell-side outlet of reheater is admitted to the shell side of low-temperature reheater, flows out the cold of the tube side of the evaporator and lead
Hot oil is sent to cold tank.
Preferably, the cold conduction oil for flowing out the shell side of the low-temperature reheater is sent to cold tank.
The main object of the present invention is had a characteristic that optimize steam generating system technique
It only include superheater, high temperature reheater, low temperature 1. the present invention reduces pre-heater apparatus on the basis of existing
Reheater and evaporator, system water supply are directly entered evaporator and are evaporated, and pipe-line system is also more simplified, this is conducive to reduce
Whole system occupied space improves system stability and safety, system is made to become easier to control.
2. the conduction oil exported from high temperature reheater need to enter evaporator heat exchange, therefore export oil temperature and improve, this is conducive to
The heat exchange efficiency for improving high temperature reheater, reduces the heat exchange area of equipment.
3. the conduction oil flash-pot for entering low-temperature reheater comes, although oil temperature is lower at this time, changed needed for low-temperature reheater
Heat area increases, but equipment increase is limited, and the oil temperature of low-temperature reheater outlet remains unchanged, this is conducive to the heat transfer for increasing equipment
Rate.
After adopting the above technical scheme, having the effect that the present invention
1. the heat exchange efficiency of high temperature reheater equipment increases, heat exchange area reduces, and equipment becomes smaller.
2. low-temperature reheater equipment rate of heat transfer increases.
3. system does not set preheater, more economical, the occupied space of entire heat-exchange system reduces.
4. system does not set preheater, pipeline is reduced, and leak source is reduced, and security of system is promoted.
5. system does not set preheater, system is simpler, and control is more easier, and overall stability improves.
Detailed description of the invention
Fig. 1 is existing slot type photo-thermal power generation steam generating system schematic diagram；
Fig. 2 is slot type photo-thermal power generation steam generating system schematic diagram provided by the invention.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
As shown in Fig. 2, when a kind of groove type solar photo-thermal power generation steam generating system provided by the invention is run, from hot tank
The thermal conductivity hot oil come one to be divided to through piping 1 be two strands, one flows into heat reservoir through piping 2 and carries out heat accumulation, another stock-traders' know-how
Piping 3 is divided into two strands after flowing into heat-exchange system again.
Be divided to via pipeline 3 in the thermal conductivity hot oil for two strands one through piping 4 flow into superheater a shell side exchange heat,
Another stock-traders' know-how piping 5 flows into high temperature reheater b shell side and exchanges heat.Thermal conductivity hot oil exchanges heat through superheater a and high temperature reheater b
Afterwards, enter pipeline 21 from the conduction oil that the shell-side outlet of superheater a flows out, led from what the shell-side outlet of high temperature reheater b flowed out
Hot oil enters pipeline 23.At this point, conduction oil can use two kinds of paths, a kind of path is: thermally conductive in pipeline 21 and pipeline 23
It is allowed to evaporate by the tube side heating water that pipeline 22 enters evaporator c after oil mixing, the conduction oil come out from evaporator c tube side passes through again
The shell side that piping 26 enters low-temperature reheater d heats cold reheated steam, and what is finally come out from the shell side of low-temperature reheater d cold leads
Hot oil flows into cold tank through pipeline 9.
Conduction oil can also use another path shown in the dotted line of Fig. 2: from the shell-side outlet stream of high temperature reheater b
Conduction oil out is directly entered pipeline 25, cold reheated steam is heated by the shell side that pipeline 25 enters low-temperature reheater d, finally from low
The cold conduction oil that the shell side of warm reheater d comes out flows into cold tank through pipeline 9.And the cold conduction oil come out from evaporator c tube side
Pipeline 27,9 can be directly over and flow into cold tank.
System water supply is directly entered the shell side of evaporator c through pipeline 24, enters the tube side of superheater a after evaporation by pipeline 14
It is overheated, the main steam after overheat goes to steam turbine high-pressure cylinder through pipeline 15.Cold reheated steam first enters low temperature by pipeline 16
The tube side of reheater d is heated, after again by pipeline 17 enter high temperature reheater b tube side by heat-conducting oil heating be reheat heat steam
Turbine low pressure cylinder is gone to by pipeline 18 afterwards.
Evaporator c is equipped with continuous blowdown mouth and periodical blowdown mouth, when system is run, need to regard water quality situation and carry out blowdown.It is fixed
Phase sewerage is discharged into regular unloading container by pipeline 19, and continuous blowdown water is discharged into continuous blowdown flash tank by pipeline 20.
Claims (3)
1. a kind of groove type solar photo-thermal power generation steam generating system, which is characterized in that only include superheater, high temperature reheater,
Low-temperature reheater and evaporator, thermal conductivity hot oil are divided into two strands, one thermal conductivity hot oil flows into heat reservoir, and another strand of thermal conductivity hot oil is again
It is divided into two strands, is respectively defined as thermal conductivity hot oil one and thermal conductivity hot oil two；
Thermal conductivity hot oil one flows into the shell side of superheater via the shell side inlet of superheater, the tube-side inlet of superheater and evaporator
Shell-side outlet is connected, and flows into the tube side that the thermal conductivity hot oil one of the shell side of superheater and the shell side via evaporator enter superheater
Steam carries out heat exchange and generates superheated steam, and superheated steam is sent to steam turbine height by the tube side outlet of superheater as main steam
Cylinder pressure, the thermal conductivity hot oil one after heat exchange are defined as conduction oil one, and conduction oil one is flowed out via the shell-side outlet of superheater；Thermal conductivity heat
Oil two flows into the shell side of high temperature reheater via the shell side inlet of high temperature reheater, and the tube-side inlet and low temperature of high temperature reheater are again
The tube side outlet of hot device is connected, and the thermal conductivity hot oil two for flowing into the shell side of high temperature reheater enters with via the tube side of low-temperature reheater
Cold reheated steam after the heating of the tube side of high temperature reheater carries out heat exchange and generates reheat heat steam, and reheat heat steam passes through high temperature
The tube side outlet of reheater is sent to turbine low pressure cylinder, and the thermal conductivity hot oil two after heat exchange is defined as conduction oil two, conduction oil two
It is flowed out via the shell-side outlet of high temperature reheater；
The conduction oil one for flowing out the shell-side outlet of superheater is admitted to the tube side of evaporator, and conduction oil one is in the tube side of evaporator
The system water supply for being admitted to the shell side of evaporator with the shell side inlet via evaporator carries out heat exchange and generates for being sent into superheater
The steam of tube side led at this point, the conduction oil two of the shell-side outlet of outflow high temperature reheater is admitted to the shell side of low-temperature reheater
Hot oil two is admitted to the tube side of low-temperature reheater with the tube-side inlet via low-temperature reheater in the shell side of low-temperature reheater
Cold reheated steam carries out the cold reheated steam after the heating of tube side of the heat exchange generation for being sent into high temperature reheater；
Or it flows out the conduction oil one of the shell-side outlet of superheater and flows out leading for the shell-side outlet of the outflow high temperature reheater
Hot oil two is admitted to the tube side of evaporator after mixing, conduction oil in the tube side of evaporator with the shell side inlet quilt via evaporator
The system water supply for being sent into the shell side of evaporator carries out the steam generated for being sent into the tube side of superheater that exchanges heat, at this point, outflow is steamed
The conduction oil for sending out the tube side of device is admitted to the shell side of low-temperature reheater, and conduction oil is in the shell side of low-temperature reheater and via low temperature
The cold reheated steam that the tube-side inlet of reheater is admitted to the tube side of low-temperature reheater carries out heat exchange and generates for being sent into high temperature again
Cold reheated steam after the heating of the tube side of hot device.
2. a kind of groove type solar photo-thermal power generation steam generating system as described in claim 1, which is characterized in that when flowing out
The conduction oil one of the shell-side outlet of hot device is admitted to the tube side of evaporator, and flows out the conduction oil of the shell-side outlet of high temperature reheater
Two when being admitted to the shell side of low-temperature reheater, and the cold conduction oil for flowing out the tube side of the evaporator is sent to cold tank.
3. a kind of groove type solar photo-thermal power generation steam generating system as described in claim 1, which is characterized in that described in outflow
The cold conduction oil of the shell side of low-temperature reheater is sent to cold tank.
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| CN201910119462.8A CN109812789B (en) | 2019-02-18 | 2019-02-18 | Groove type solar photo-thermal power generation steam generation system |
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| CN201910119462.8A CN109812789B (en) | 2019-02-18 | 2019-02-18 | Groove type solar photo-thermal power generation steam generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425509A (en) * | 2019-08-27 | 2019-11-08 | 东方电气集团东方锅炉股份有限公司 | A kind of slot type conduction oil steam generating system and its control method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425509A (en) * | 2019-08-27 | 2019-11-08 | 东方电气集团东方锅炉股份有限公司 | A kind of slot type conduction oil steam generating system and its control method |
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