CN104373310B - Solar energy and fuel complementary power generation system - Google Patents
Solar energy and fuel complementary power generation system Download PDFInfo
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- CN104373310B CN104373310B CN201410749471.2A CN201410749471A CN104373310B CN 104373310 B CN104373310 B CN 104373310B CN 201410749471 A CN201410749471 A CN 201410749471A CN 104373310 B CN104373310 B CN 104373310B
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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
The invention discloses a kind of solar energy and fuel complementary power generation system, including fuel generating systems and solar low-temperature steam production system, fuel generating systems include fueled steam boiler, turbo-generator, condenser and hydrotreater, and solar low-temperature steam production system includes heating heat collector and steam generator；Heating heat collector is solar low-temperature heat collector, heats heat collector and is connected with steam generator, and the venthole of steam generator connects the admission end of steam pump, and the steam output end of steam pump is connected to fueled steam boiler by check-valves；Fueled steam boiler connects turbo-generator, turbo-generator connection condenser；Hydrotreater is connected with fueled steam boiler.Thermal source is provided using low-temperature heat collection device, water is vaporized in a vapor generator becomes the Low Temperature Steam containing a large amount of latent heats of vaporization, incoming fuel steam boiler, reheating becomes superheated steam for generating electricity.About 2/3 fuel can be saved, existing huge economic benefit has significant social benefit again.
Description
Technical field
The present invention relates to Application of Solar Energy field, more particularly to it is a kind of using solar low-temperature heat collector acquisition heat energy and combustion
The complementary electricity generation system for constituting of material.
Background technology
Existing fuel generating systems mainly have coal fired power generation, oil-fired power generating and fuel gas generation etc., and fuel generating systems are
The water in steam boiler is heated with fuel, is made water become steam and is further heated as superheated steam, superheated steam promotes vapour
Turbine generator generates electricity.Fuel will discharge substantial amounts of particulate matter and toxic and harmful in combustion, and environmental pollution is too big,
Affect people healthy；Substantial amounts of carbon emission, causes climate change, causes serious natural calamity.
To change or mitigating this present situation, it is attempted to various new forms of energy and fuel complemental power-generation, solar energy is huge
And eternal clean energy resource, the high temperature such as useful slot type solar thermal collector and fuel plants, especially coal fired thermal power plant are combined
Complementary scheme, for example, " the note steaming of the Application No. 201010520248.2 of Institute of Engineering Thernophysics, Academia Sinica's application
The patent of the solar energy and thermal power station complementary generating system of vapour formula ", it is proposed that produce superheated steam injection steam using solar energy
Turbine high pressure cylinder or intermediate pressure cylinder expansion work, reduce unit gross coal consumption rate, realize the complementation of solar energy and thermoelectricity, realize fire
The dilatation consumption reduction in power station, solves the unstable discontinuous problem of solar energy；The apllied Application No. of North China Electric Power University
200810104285.8 " solar energy assisted coal fired thermal power plant integrated backheating device " patent application, it is proposed that utilize the sun
The hydrophobic of feed-water heater in heat regenerative system can be heated, and feed-water heater heat release is returned after being changed into steam, solved solar heat and send out
Electrically directly depend on astronomical phenomena, the problems such as start and stop are frequent and unstable；These scheme Dou Shi power plant save fuel, reduce
Disposal of pollutants.But, they all need to use focusing mirror, and speculum cost is high, can only utilize the direct light of the sun, the sun again
Can utilization ratio it is low, economic benefit is poor and fail large-scale promotion application；Therefore, also need to find more scientific and effective complementation
Mode.
The content of the invention
The technical problem to be solved is to provide a kind of solar energy and fuel complementary power generation system, using cheap
Solar energy is that most of fuel is saved in power plant, to reduce the cost of electricity-generating in power plant and reduce the disposal of pollutants in power plant, is increased
Plus ratio of the regenerative resource in primary energy application.
The present invention solves solar energy and the fuel complementary power generation system adopted by its technical problem, including fuel generating systems
With solar low-temperature steam production system, the fuel generating systems include fueled steam boiler, turbo-generator, condenser and
Hydrotreater, the solar low-temperature steam production system include heating heat collector and steam generator；The heating heat collector
For solar low-temperature heat collector, the heating heat collector is connected with the steam generator, the venthole of the steam generator
The admission end of connection steam pump, the steam output end of steam pump are connected to the fueled steam boiler by check-valves；The fuel steams
Boiler furnace connects turbo-generator, and the turbo-generator connects the condenser；The condenser passes through water circulating pump and institute
Steam generator connection is stated, the water inlet end of the water circulating pump is provided with motor-driven valve, and water side is provided with check-valves, the condensing
Device is also connected with the fueled steam boiler, and the hydrotreater is connected with the steam generator by supply-water pump, the water
Processor is also connected with the fueled steam boiler, and the first water level controller, the water supply are provided with the steam generator
Pump is the steam generator moisturizing under the control of first water level controller.
Further, the solar low-temperature steam production system also includes heat storage box and heat-exchanging loop, the heat storage box
It is arranged between the heating heat collector and steam generator, the heat storage box passes through heat-conducting medium structure with the heating heat collector
Into first circulation loop, the heat storage box is connected with the steam generator by the heat-exchanging loop.
Further, the solar low-temperature steam production system also includes heat pump, and the heat pump is arranged on the heat accumulation
Between case and the steam generator, the heat pump includes condenser, flow controller, compressor and evaporimeter, the evaporimeter
One end of condenser is connected to after the concatenation compressor of one end, after the other end concatenation flow controller of the condenser, the steaming is connected to
The other end of device is sent out, the heat pump provides heat energy for the steam generator with heat-exchanging loop collective effect.
Further, the heat-exchanging loop includes first circulation pump and heat exchanger；The condenser of the heat exchanger and heat pump
It is arranged in steam generator, the evaporimeter of the heat pump is arranged in heat storage box；First circulation pump described in the heat storage box Jing
The one end for the heat exchanger being arranged in the steam generator is connected to, the other end for connecing heat exchanger returns to heat storage box；Institute
The power line that first circulation pump is stated with the compressor of heat pump is all connected to power-supply controller of electric.
Further, the heat-exchanging loop includes heat pipe, and the heat pipe includes evaporator section and condensation segment, the heat pipe it is cold
The condenser of solidifying section and heat pump is arranged in steam generator, and the evaporimeter of the evaporator section and heat pump of the heat pipe is arranged on heat accumulation
In case.
Further, the heat-exchanging loop includes heat pipe, second circulation pump and heat exchange box, and the condensation segment of the heat pipe is arranged
In steam generator, the condenser of the evaporator section and heat pump of the heat pipe is arranged in heat exchange box, the evaporimeter of the heat pump
It is arranged in heat storage box, second circulation loop is constituted by heat-conducting medium between the heat exchange box and the heat storage box, described the
Two circulating pumps are serially connected in the upper loop in the second circulation loop, the electricity of the second circulation pump and the compressor of the heat pump
Source is all connected to power-supply controller of electric.
Further, the solar low-temperature steam production system also includes preheating heat collector, and the preheating heat collector is
Solar low-temperature heat collector, the preheating heat collector are used for the feedwater for preheating the steam generator.
Further, the solar low-temperature steam production system also includes heat-exchanger pump and water tank, and the condenser passes through
Water circulating pump is connected with the water tank, and the hydrotreater is connected with the water tank by supply-water pump, it is described preheating heat collector with
The water tank constitutes the 3rd closed circuit by heat-conducting medium, and the water tank passes through heat-exchanger pump) it is connected with the steam generator,
The second water level controller is provided with the water tank.
Further, the heat-conducting medium in the second circulation loop that the heat exchange box is constituted with the heat storage box be air, institute
Second circulation pump is stated for air pump.
Further, design temperature >=100 DEG C of the steam generator.
The invention has the beneficial effects as follows：Thermal source is provided using the low-temperature heat collection device of Cheap highly effective, water is made in steam generator
After middle vaporization becomes the Low Temperature Steam containing a large amount of latent heats of vaporization, incoming fuel steam boiler, reheating become superheated steam use
In generating.Each gram of water becomes the heat that superheated steam needs to block about 800 more, and the latent heat of vaporization of water is per gram 540 and blocks that solar energy is given
Heat energy of the every gram of water vapour there is provided more than 600 cards, accounts for the 2/3 of steam energy consumption, what the heat energy that solar energy is provided was provided for fuel
The twice of heat energy, effectively saving coal；Using the solar low-temperature heat collector electricity generation system complementary with fueled steam boiler, can save
About 2/3 fuel is saved, and uses the cost that solar low-temperature heat collector obtains heat energy only to burn the 1/3 of coal, this both greatly reduced
The production cost of enterprise, reduces disposal of pollutants again, generates double effectses, and existing huge economic benefit has significant society again
Can benefit.
Description of the drawings
Fig. 1 is the structural representation of the first embodiment of the present invention；
Fig. 2 is the structural representation of second embodiment of the present invention；
Fig. 3 is the schematic diagram of second embodiment of the heat-exchanging loop of the present invention；
Fig. 4 is the schematic diagram of the third embodiment of the heat-exchanging loop of the present invention；
Shown in figure：Heating heat collector 1, heat storage box 2, first circulation pump 3, heat exchanger 4, condenser 5, steam generator 6,
Power-supply controller of electric 7, flow controller 8, compressor 9, evaporimeter 10, steam pump 11, check-valves 12, fueled steam boiler 13, turbine are sent out
Motor 14, condenser 15, water circulating pump 16, supply-water pump 17, hydrotreater 18, preheating heat collector 19, heat-exchanger pump 20, water tank 21,
First water level controller 22, heat pipe 23, second circulation pump 24, heat exchange box 25, the second water level controller 26.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
In Fig. 1 and Fig. 2, the left-hand component of dotted line is existing fuel generating systems, and right-hand component is and fuel generating systems
Complementary solar low-temperature steam production system.Fuel generating systems are mainly coal fired power generation, oil-fired power generating or fuel gas generation system
System.
As shown in figure 1, solar energy and fuel complementary power generation system, including fuel generating systems and the life of solar low-temperature steam
Product system, the fuel generating systems include fueled steam boiler 13, turbo-generator 14, condenser 15 and hydrotreater 18,
The solar low-temperature steam production system includes heating heat collector 1 and steam generator 6；The heating heat collector 1 is the sun
Energy low-temperature heat collection device, the heating heat collector 1 are connected with the steam generator 6, the venthole connection of the steam generator 6
The admission end of steam pump 11, the steam output end of steam pump 11 are connected to the fueled steam boiler 13 by check-valves 12；The combustion
The material connection turbo-generator 14 of steam boiler 13, the turbo-generator 14 connect the condenser 15；The condenser 15 leads to
Cross water circulating pump 16 to be connected with the steam generator 6, the water inlet end of the water circulating pump 16 is provided with motor-driven valve, and water side sets
Check-valves is equipped with, the condenser 15 is also connected with the fueled steam boiler 13, the hydrotreater 18 passes through supply-water pump 17
It is connected with the steam generator 6, the hydrotreater 18 is also connected with the fueled steam boiler 13, the steam generator
The first water level controller 22 is provided with 6, the supply-water pump 17 is the steaming under the control of first water level controller 22
6 moisturizing of vapour generator.
The solar energy of the present invention and the operation principle of fuel complementary power generation system：
Heating heat collector 1 is solar low-temperature heat collector, and the heating heat collector 1 is using the solar energy for absorbing by heat conduction
Medium is that steam generator 6 provides heat energy, and water is vaporized in steam generator 6 becomes the steaming of the low temperature containing a large amount of latent heats of vaporization
Low Temperature Steam is injected fueled steam boiler 13 by steam pump 11 and check-valves 12, was further heated as with fuel by vapour
Vapours, superheated steam are changed into exhaust steam after generating electricity into the acting of steam turbine generator 14, exhaust steam forms solidifying Jing after the condensation of condenser 15
Bear water, a part of condensate Jing water circulating pumps 16 are sent to steam generator 6 and recycle, remainder condensate is sent to described
Fueled steam boiler 13 is recycled, and hydrotreater 18 is the original equipment of power plant, and the effect of the hydrotreater 18 is by too
Sun can be carried out filtering with the feedwater of fuel complementary power generation system, be purified etc. and being processed, the water part Jing after the process of hydrotreater 18
By supply-water pump 17 under the control of water level controller 22, to 6 moisturizing of steam generator, the water Jing after the process of hydrotreater 18 is also
Fueled steam boiler 13 is transported to for 13 moisturizing of fueled steam boiler.Absorbed using the heating heat collector 1 of Cheap highly effective and too can
Thermal source can be provided, after water is vaporized in steam generator 6 and is become the Low Temperature Steam containing a large amount of latent heats of vaporization, incoming fuel is steamed
Boiler furnace 13, reheating become superheated steam for generating electricity.Each gram of water becomes the heat that superheated steam needs to block about 800 more, water
The latent heat of vaporization be per gram 540 card, solar energy is given every gram of water vapour there is provided more than 600 heat energy for blocking, accounts for the 2/ of steam energy consumption
3, the twice of the heat energy that the heat energy that solar energy is provided is provided for fuel, effectively saving coal；Using solar low-temperature heat collector with
The complementary electricity generation system of fueled steam boiler, can save about 2/3 fuel, and use solar low-temperature heat collector obtain heat energy into
This only burns the 1/3 of coal, and this had both greatly reduced the production cost of enterprise, reduces disposal of pollutants again, generates double effectses,
Existing huge economic benefit has significant social benefit again.
As shown in figure 1, as a further improvement on the present invention, the solar low-temperature steam production system also includes heat accumulation
Case 2 and heat-exchanging loop, the heat storage box 2 are arranged between the heating heat collector 1 and steam generator 6, the heat storage box 2 with
The heating heat collector 1 constitutes first circulation loop by heat-conducting medium, and the heat-conducting medium can be air, or heat conduction
Oil etc., the heat storage box 2 are connected with the steam generator 6 by the heat-exchanging loop.Heating heat collector 1 links heat storage box 2,
A closed circuit is constituted by heat-conducting medium between heating heat collector 1 and heat storage box 2, the closed circuit can be that nature is followed
Ring, it is also possible to plus pump constitutes forced circulation, 2 Jing heat-exchanging loops of heat storage box are connected to steam generator 6.Heating heat collector 1 is utilized
The heat-conducting medium in the solar energy heating first circulation loop of absorption, the heat-conducting medium in first circulation loop transfer thermal energy to heat accumulation
Case 2 and by thermal energy storage in heat storage box 2, the heat energy in heat storage box 2 passes to steam generator 6 by heat-exchanging loop, makes steaming
Water is vaporized in vapour generator 6 is the Low Temperature Steam containing a large amount of latent heats of vaporization.
As shown in figure 1, as a further improvement on the present invention, the solar low-temperature steam production system also includes heat
Pump, the heat pump are arranged between the heat storage box 2 and the steam generator 6, and the heat pump includes condenser 5, flow controller
8th, compressor 9 and evaporimeter 10, are connected to one end of condenser 5 after one end concatenation compressor 9 of the evaporimeter 10, described cold
The other end of the evaporimeter 10 is connected to after the other end concatenation flow controller 8 of condenser 5, the heat pump is made jointly with heat-exchanging loop
Heat energy is provided with for the steam generator 6.The condenser 5, flow controller 8, evaporimeter 10 and 9 in series one, compressor
Closed circuit, when solar illumination is strong, the solar energy for heating the absorption of heat collector 1 is steam generator 6 by heat-exchanging loop
Heat supply, when solar energy is not enough, connects the power supply of the compressor 9 of heat pump, is 6 heat supply of steam generator by heat pump, keeps steaming
Temperature inside vapour generator 6, maintains evaporation capacity, and this had both made full use of solar energy, can guarantee that system stable operation again.
As shown in figure 1, the first embodiment of heat-exchanging loop：The heat-exchanging loop includes first circulation pump 3 and heat exchange
Device 4；The condenser 5 of the heat exchanger 4 and heat pump is arranged in steam generator 6, and the evaporimeter 10 of the heat pump is arranged on storage
In hot tank 2；First circulation pump 3 described in 2 Jing of the heat storage box is connected to the heat exchanger 4 that is arranged in the steam generator 6
One end, the other end for connecing heat exchanger 4 return to heat storage box 2；The power line of the compressor 9 of the first circulation pump 3 and heat pump
It is all connected to power-supply controller of electric 7.The one end for the evaporimeter 10 being arranged on inside heat storage box 2 is connected to compressor 9, compressor 9
The other end is connected to the one end for the condenser 5 for being arranged on inside steam generator 6, and the other end warp knuckle stream device 8 of condenser 5 is returned to
The other end of evaporimeter 10；2 Jing first circulations pump 3 of heat storage box is connected to the heat exchanger 4 being arranged on inside steam generator 6, changes
The other end Jing pipelines of hot device 4 return to heat storage box 2；First circulation pump 3 is all connected to power supply control with the power line of heat pump compressor 9
Device processed 7；Heat-exchanging loop is in parallel with heat pump to provide heat energy for steam generator 6, when solar illumination is strong, heats heat collector 1
The solar energy of absorption is 6 heat supply of steam generator by first circulation pump 3, when solar energy is not enough, 7 action of power-supply controller of electric,
The power supply of cut-out circulating pump 3, connects the power supply of compressor 9, is 6 heat supply of steam generator by heat pump, keeps steam generator 6
The temperature of the inside, maintains evaporation capacity.
As shown in figure 3, second embodiment of heat-exchanging loop：The heat-exchanging loop includes heat pipe 23, the heat pipe 23
Including evaporator section and condensation segment, the condenser 5 of the condensation segment and heat pump of the heat pipe 23 is arranged in steam generator 6, described
The evaporimeter 10 of the evaporator section and heat pump of heat pipe 23 is arranged in heat storage box 2.Heat storage box 2 is connected to steam using heat pipe 23 to send out
Raw device 6, the evaporator section of heat pipe 23 are arranged in heat storage box 2, and the condensation segment of heat pipe 23 is arranged in steam generator 6；It is arranged on
One end of evaporimeter 10 inside heat storage box 2 is connected to compressor 9, and the other end of compressor 9 is connected to and is arranged on steam generation
One end of 6 condenser 5 inside device, the other end warp knuckle stream device 8 of condenser 5 return to the other end of evaporimeter 10；Using this
Embodiment, can sketch in parallel with heat pipe 23 for heat pump, adopt that heat pipe 23 is in parallel with heat pump to provide heat for steam generator 6
Can, when solar illumination is strong, the solar energy for heating the absorption of heat collector 1 is 6 heat supply of steam generator by heat pipe 23, when too
During positive energy deficiency, it is 6 heat supply of steam generator by heat pump, keeps the temperature inside steam generator 6, maintain evaporation capacity.Adopt
With heat pipe heat exchanging, its heat-transfer effect is more preferable, and not power consumption.
As shown in figure 4, the third embodiment of heat-exchanging loop：The heat-exchanging loop includes heat pipe 23, second circulation pump
24 and heat exchange box 25, the condensation segment of the heat pipe 23 is arranged in steam generator 6, the evaporator section and heat pump of the heat pipe 23
Condenser 5 is arranged in heat exchange box 25, and the evaporimeter 10 of the heat pump is arranged in heat storage box 2, the heat exchange box 25 with it is described
Second circulation loop is constituted by heat-conducting medium between heat storage box 2, the heat-conducting medium can be air, or conduction oil
Deng the second circulation pump 24 is serially connected in the upper loop in the second circulation loop, the second circulation pump 24 and the heat
The power supply of the compressor 9 of pump is all connected to power-supply controller of electric 7.Using this embodiment, can sketch as heat pump and heat pipe 23
Connect as a heat exchange box 25, the condenser 5 of heat pump and heat pipe are arranged between 6 heat supply of steam generator, i.e. heat pump and heat pipe 23
Evaporation ends arrange in heat exchange box 25, heat pump and heat pipe 23 carry out heat exchange in heat exchange box 25；Heat exchange box 25 and storage
One closed circuit is set between hot tank 2, second circulation pump 24, second circulation pump 24 are concatenated in the upper loop of the closed circuit
Power-supply controller of electric 7 is all connected to the power supply of compressor 9." the upper loop " refers to heat-conducting medium from heat storage box 2 to heat exchange box
That section of 25 conveyings.When solar illumination is strong, i.e., when the temperature of the heat-conducting medium in heat exchange box 25 is higher than design temperature, power supply
Controller 7 cuts off the power supply of heat pump compressor 9, connects the power supply of second circulation pump 24, and the heat energy Jing heat pipes 23 of heat-conducting medium are passed
Pass steam generator 6；Otherwise, when solar illumination is weak, i.e., the temperature of the heat-conducting medium inside heat exchange box 25 is less than setting temperature
When spending, the heat-conducting medium temperature in heat exchange box 25 is low, the power supply of the cut-out second circulation of power-supply controller of electric 7 pump 24, connects compression
The power supply of machine 9, lifts the temperature of the heat-conducting medium inside heat exchange box 25 using heat pump, makes heat-conducting medium inside heat exchange box 25
Temperature remains setting value, makes system working stability, does not change with the change of solar illumination, and makes the solar energy of weak period
Fully it is obtained by.As preferred embodiment, the second circulation loop that the heat exchange box 25 is constituted with the heat storage box 2
Heat-conducting medium is air, and the second circulation pump 24 is air pump.Heat-conducting medium between the heat exchange box 25 and heat storage box 2 is sky
Gas, makees heat-conducting medium with air, can reduce installation cost, meanwhile, gas-liquid heat exchange can make the heat exchange efficiency of heat pipe 23 higher.
As shown in Fig. 2 as a further improvement on the present invention, the solar low-temperature steam production system also includes preheating
Heat collector 19, for solar low-temperature heat collector, the preheating heat collector 19 is used to preheat the steam heat collector 19 that preheats
The feedwater of generator 6.By preheating feed-water preheating of the heat collector 19 first to steam generator 6.
As shown in Fig. 2 as a further improvement on the present invention, the solar low-temperature steam production system also includes hot water
Pump 20 and water tank 21, the condenser 15 are connected with the water tank 21 by water circulating pump 16, and the hydrotreater 18 is by supplying
Water pump 17 is connected with the water tank 21, and the preheating heat collector 19 constitutes threeth by heat-conducting medium with the water tank 21 and loops back
Road, the heat-conducting medium can be air, or conduction oil etc., the water tank 21 pass through heat-exchanger pump 20 and the steam generation
Device 6 connects, and the second water level controller 26 is provided with the water tank 21.Preheating heat collector 19 links water tank 21, preheats heat collector
The 3rd closed circuit is constituted by heat-conducting medium between 19 and water tank 21, this 3rd closed circuit can be Natural Circulation, also may be used
To add pump to be constituted forced circulation, 21 Jing heat-exchanger pumps 20 of water tank are connected to steam generator 6, and preheating heat collector 19 passes through heat-conducting medium
After the preheating cold water in water tank 21, it is that steam generator 6 provides hot water by heat-exchanger pump 20；As preferred embodiment,
Hot water can be shower type on heat exchanger 4, in order to fully heat exchange；Heating heat collector 1 is steam using the solar energy for absorbing
Generator 6 provides heat energy, makes 6 inner hot water vaporization of steam generator become the Low Temperature Steam containing a large amount of latent heats of vaporization, by steaming
Low Temperature Steam is injected fueled steam boiler 13 by heat pump 11 and check-valves 12, is further heated as superheated steam, mistake with fuel
Vapours is changed into exhaust steam after generating electricity into the acting of steam turbine generator 14, and exhaust steam forms condensate Jing after the condensation of condenser 15, one
Fractional condensation bears water Jing water circulating pumps 16 and is sent to the utilization of 21 interior circulation of water tank, and remainder condensate is sent to the fueled steam boiler
13 recycle, and hydrotreater 18 is the original equipment of power plant, and the effect of the hydrotreater 18 is that solar energy is mutual with fuel
The feedwater for reissuing electric system is carried out filtering, is purified etc. and processes, and the water part Jing after the process of hydrotreater 18 passes through supply-water pump 17
Under the control of the second water level controller 26, to 21 moisturizing of water tank, the water Jing after the process of hydrotreater 18 is also delivered to fuel
Steam boiler 13 is 13 moisturizing of fueled steam boiler.
If the temperature of steam generator 6 is set at less than 100 DEG C, the water in steam generator 6 can also be vaporized, but
Now, water is vaporized under negative pressure state, steam pump 11 should extract will also pressurize will many power consumptions, and temperature is more low more consumes
Electricity, the design temperature of steam generator 6 are appropriate lower, and such as more than 90 DEG C can also.As preferred embodiment, the steaming
Design temperature >=100 DEG C of vapour generator 6；The temperature of steam generator 6 is set as >=100 DEG C, is in order that water is in normal pressure
Vaporize under state, so, steam pump 11 just need to only pressurize and without extracting, so as to reduce power consumption.
Preheating heat collector 19 and heating heat collector 1 above in each embodiment is solar low-temperature heat collector, the sun
Energy low-temperature heat collection device includes flat plate collector and vacuum tube collector；Flat plate collector includes core metal sheet flat plate collector, complete
Glass evacuated flat plate collector, black porcelain plate solar collector etc.；Vacuum tube collector include glass vacuum pipe heat collector,
Vacuum tube copper pipe heat collector and vacuum-tube heat-pipe heat collector.
Embodiment
By taking coal-burning power plant as an example, near power station, solar low-temperature heat collector is installed, for example, vacuum tube collector or
Flat plate collector, solar low-temperature heat collector using square metre as unit, the generated energy of coal-burning power plant using kilowatt as unit, too
Square metre number of positive energy low-temperature heat collection device is about 1.2 times of kilowatt number of coal-burning power plant, preheating heat collector 19 and heating heat collector 1
Square metre number ratio be 1:5.
As shown in Figure 2 and Figure 4, wherein, heat-exchanging loop is as shown in figure 4, solar energy and fuel complementary power generation system, including combustion
Material electricity generation system and solar low-temperature steam production system, the fuel generating systems include that fueled steam boiler 13, turbine is sent out
Motor 14, condenser 15 and hydrotreater 18, the solar low-temperature steam production system include heating heat collector 1, heat storage box
2nd, first circulation pump 3, heat exchanger 4, condenser 5, steam generator 6, power-supply controller of electric 7, flow controller 8, compressor 9, evaporimeter
10th, steam pump 11, check-valves 12, water circulating pump 16, supply-water pump 17, preheating heat collector 19, heat-exchanger pump 20, water tank 21, water level control
Device processed 22, heat pipe 23, second circulation pump 24, heat exchange box 25；The heat pump includes condenser 5, flow controller 8, evaporimeter 10 and pressure
Contracting machine 9, is connected to condenser 5 after one end concatenation compressor 9 of their closed circuits in series, the i.e. evaporimeter 10
One end, be connected to the other end of the evaporimeter 10 after the other end concatenation flow controller 8 of the condenser 5；The heating collection
Heat storage box 2, heat exchange box 25 are disposed between hot device 1 and steam generator 6, i.e., the heat storage box 2 is arranged on the heating
Between heat collector 1 and heat exchange box 25, the heat exchange box 25 is arranged between the heat storage box 2 and steam generator 6；The heat accumulation
Case 2 constitutes first circulation loop by heat-conducting medium with the heating heat collector 1, and the heat-conducting medium can be air, it is also possible to
For conduction oil etc.；As shown in figure 4, the mode that heat pump is connected with heat pipe 23 is adopted for 6 heat supply of steam generator, the heat pipe 23
Condensation segment is arranged in steam generator 6, and the condenser 5 of the evaporator section and heat pump of the heat pipe 23 is arranged in heat exchange box 25,
The evaporimeter 10 of the heat pump is arranged in heat storage box 2, passes through heat-conducting medium structure between the heat exchange box 25 and the heat storage box 2
Into second circulation loop, the heat-conducting medium can be air, or conduction oil etc., the second circulation pump 24 are serially connected in institute
State in the upper loop in second circulation loop, the second circulation pump 24 is all connected to electricity with the power supply of the compressor 9 of the heat pump
Source controller 7；The preheating heat collector 19 constitutes threeth closed circuit, the heat-conducting medium by heat-conducting medium with the water tank 21
Can be air, or conduction oil etc., the water tank 21 are connected with the steam generator 6 by heat-exchanger pump 20, described
The second water level controller 26 is provided with water tank 21；The first water level controller 22, the steaming are provided with the steam generator 6
The venthole of vapour generator 6 connects the admission end of steam pump 11, described in the steam output end of steam pump 11 is connected to by check-valves 12
Fueled steam boiler 13；The fueled steam boiler 13 connects turbo-generator 14, and the turbo-generator 14 connects described solidifying
Vapour device 15；The condenser 15 is passed through water circulating pump 16 and is connected with the water tank 21 by water circulating pump 16, the recirculated water
The water inlet end of pump 16 is provided with motor-driven valve, and water side is provided with check-valves, the condenser 15 also with the fueled steam boiler
13 connections, the hydrotreater 18 is connected with the water tank 21 by supply-water pump 17, the hydrotreater 18 also with the fuel
Steam boiler 13 connects, and the supply-water pump 17 is 21 moisturizing of water tank under the control of second water level controller 26.
Claims (5)
1. solar energy and fuel complementary power generation system, it is characterised in that：Including fuel generating systems and the life of solar low-temperature steam
Product system, the fuel generating systems include fueled steam boiler (13), turbo-generator (14), condenser (15) and water process
Device (18), the solar low-temperature steam production system include heating heat collector (1) and steam generator (6)；The heating collection
Hot device (1) is solar low-temperature heat collector, and the heating heat collector (1) is connected with the steam generator (6), and the steam is sent out
The admission end of venthole connection steam pump (11) of raw device (6), the steam output end of steam pump (11) are connected to by check-valves (12)
The fueled steam boiler (13)；The fueled steam boiler (13) connection turbo-generator (14), the turbo-generator
(14) connect the condenser (15)；The condenser (15) is connected with the steam generator (6) by water circulating pump (16),
The water inlet end of the water circulating pump (16) is provided with motor-driven valve, and water side is provided with check-valves, the condenser (15) also with institute
Fueled steam boiler (13) connection is stated, the hydrotreater (18) is connected with the steam generator (6) by supply-water pump (17),
The hydrotreater (18) is also connected with the fueled steam boiler (13), is provided with the first water on the steam generator (6)
Level controller (22), the supply-water pump (17) are the steam generator under the control of first water level controller (22)
(6) moisturizing；
The solar low-temperature steam production system also includes heat storage box (2) and heat-exchanging loop, and the heat storage box (2) is arranged on institute
State between heating heat collector (1) and steam generator (6), the heat storage box (2) is situated between by heat conduction with heating heat collector (1)
Quality structure is connected with the steam generator (6) into first circulation loop, the heat storage box (2) by the heat-exchanging loop；
The solar low-temperature steam production system also includes heat pump, and the heat pump is arranged on the heat storage box (2) and the steaming
Between vapour generator (6), the heat pump includes condenser (5), flow controller (8), compressor (9) and evaporimeter (10), the steaming
One end of condenser (5), the other end concatenation of the condenser (5) are connected to behind one end concatenation compressor (9) for sending out device (10)
The other end of the evaporimeter (10) is connected to after flow controller (8), the heat pump is the steam with heat-exchanging loop collective effect
Generator (6) provides heat energy；
The heat-exchanging loop includes heat pipe (23), second circulation pump (24) and heat exchange box (25), the condensation segment of the heat pipe (23)
It is arranged in steam generator (6), the condenser (5) of the evaporator section and heat pump of the heat pipe (23) is arranged on heat exchange box (25)
Interior, the evaporimeter (10) of the heat pump is arranged in heat storage box (2), is led between the heat exchange box (25) and the heat storage box (2)
Cross heat-conducting medium and constitute second circulation loop, the second circulation pump (24) is serially connected in the upper loop in the second circulation loop
In, the second circulation pump (24) is all connected to power-supply controller of electric (7) with the power supply of the compressor (9) of the heat pump.
2. solar energy as claimed in claim 1 and fuel complementary power generation system, it is characterised in that：The solar low-temperature steam
Production system also includes preheating heat collector (19), and preheating heat collector (19) is solar low-temperature heat collector, the preheating collection
Hot device (19) is for preheating the feedwater of the steam generator (6).
3. solar energy as claimed in claim 2 and fuel complementary power generation system, it is characterised in that：The solar low-temperature steam
Production system also includes heat-exchanger pump (20) and water tank (21), and the condenser (15) is by water circulating pump (16) and the water tank
(21) connect, the hydrotreater (18) is connected with the water tank (21) by supply-water pump (17), preheating heat collector (19)
With the water tank (21) by heat-conducting medium constitute the 3rd closed circuit, the water tank (21) is by heat-exchanger pump (20)) with it is described
Steam generator (6) connects, and is provided with the second water level controller (26) on the water tank (21).
4. solar energy as claimed in claim 1 and fuel complementary power generation system, it is characterised in that：The heat exchange box (25) and institute
The heat-conducting medium for stating the second circulation loop that heat storage box (2) is constituted is air, and the second circulation pump (24) is air pump.
5. the solar energy as described in any one of Claims 1-4 claim and fuel complementary power generation system, its feature exist
In：Design temperature >=100 DEG C of the steam generator (6).
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| CN113090349B (en) * | 2021-03-29 | 2022-03-22 | 西安交通大学 | Photo-thermal type coal supercritical water gasification hydrogen-heat-power cogeneration system and working method |
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| EP2686552A2 (en) * | 2011-03-14 | 2014-01-22 | Valagam, Rajagopal, Raghunathan | Hermitically sealed solar water heater system and operation method for generation of electricity from thermal power plant |
| CN103742211A (en) * | 2013-12-31 | 2014-04-23 | 北京神雾环境能源科技集团股份有限公司 | Solar energy and biomass energy combined power generation system and method |
| CN203784897U (en) * | 2014-03-25 | 2014-08-20 | 刘敬华 | Solar energy electric steam boiler |
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