CN105888992A - Solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system - Google Patents
Solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system Download PDFInfo
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- CN105888992A CN105888992A CN201610248819.9A CN201610248819A CN105888992A CN 105888992 A CN105888992 A CN 105888992A CN 201610248819 A CN201610248819 A CN 201610248819A CN 105888992 A CN105888992 A CN 105888992A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/005—Using steam or condensate extracted or exhausted from steam engine plant by means of a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B3/00—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
- F22B3/04—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass by drop in pressure of high-pressure hot water within pressure- reducing chambers, e.g. in accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S21/00—Solar heat collectors not provided for in groups F24S10/00-F24S20/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/88—Multi reflective traps
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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
- Y02E10/10—Geothermal energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system. The solar energy and terrestrial heat combination two-level flash double-working-medium cycle power generation hot water system comprises a groove type solar energy heat collector, a heat storage device, a terrestrial heat processing device, a first-level flash vessel, a second-level flash vessel, a steam turbine, a low-pressure compressor, a high-pressure compressor, an evaporator, a middle evaporator, a middle cooler and a condenser, wherein the terrestrial heat processing device, the first-level flash vessel, the second-level flash vessel, the steam turbine, the low-pressure compressor, the high-pressure compressor, the evaporator communicate to a production well, the middle evaporator, the middle cooler and the condenser communicate to a recharge well, and the heat storage device and the groove type solar energy heat collector communicate with each other and form a closed cycle.
Description
Technical field
The present invention relates to technical field of solar, particularly a kind of solar energy is sent out with ground heat integration double flash evaporation double-work medium circulation
Electric water heating system.
Background technology
Solar energy is inexhaustible, cleanliness without any pollution the reproducible environmental protection energy.Utilize solar energy
Generating, unrivaled spatter property, height safety, the relative popularity of the energy and abundance, long-life and exempt from
Advantage not available for other conventional energy resources such as maintainability, but solar power plant construction cost is higher, and generated energy is by spoke
Penetrating the restriction that intensity is unstable, generating efficiency is low.
Vast area and Latitude Distribution scope from low to high so that China lays in abundant geothermal energy resources.
Geothermal power generation is the important form that utilizes of one of geothermal energy resources, and geothermal power generation is the same with the principle of thermal power generation, is all to utilize
The heat energy of steam is changed into mechanical energy in steam turbine, then drives electrical power generators.Unlike thermal power generation, underground heat
Generating need not huge boiler, therefore efficiently avoid the problem of environmental pollution that Fossil fuel causes.Available underground heat
The temperature range of water is extensive, adapts with China latitude scope from low to high.The cost of geothermal power generation is generally lower than water
Energy, firepower, nuclear energy and solar electrical energy generation, equipment uses the time long, and small investment of founding the factory, not by rainfall and seasonal variations
Impact, and power generation stabilization.
The difference of base area thermal resource, can divide live (open) steam formula, expanding type, intermediate medium formula and the circulating 4 kinds of bases of full stream
This generation mode.Geothermal power station of China many employings expanding type, to have system simple, to setting for which compared with other modes
For requiring the advantages such as relatively low, reinforcement has fewer environmental impacts after recharging management, but generating efficiency is relatively low.Additionally, underground heat money
Large-scale developing and utilizing for a long time of source, such as 30 years continuous services of Yangbajing, Tibet geothermal power station, may cause heat storage pressure
The problems such as decay, steam flow reduction, hot water temperature's reduction, will cause system effectiveness to reduce further.To this end, use
By the mode of geothermal energy with solar association circulation, to improve vapor (steam) temperature, strengthen generating capacity, reduce system to underground heat
The degree of dependence of energy.Light thermal sub-system is combined with geothermal power station, the Optimum utilization of ground heat solar can be realized, have
It is beneficial to mating of generated energy and power load.At the night that power load is relatively low, changeable is tradition expanding type geothermal power generation
Operational mode；On the daytime that power load is higher, by underground heat solar combined power generating, system effectiveness can be effectively improved
And generated energy.Period in early morning can isolated operation light thermal sub-system, after heat-storing device temperature reaches system requirements, then combine
Run whole electricity generation system.
Summary of the invention
Goal of the invention: the technical problem to be solved is for the deficiencies in the prior art, it is provided that a kind of solar energy with
Ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system.
In order to solve above-mentioned technical problem, the invention provides a kind of solar energy and ground heat integration double flash evaporation double-work medium circulation
Generating hot-water heating system, including trough type solar heat-collector, heat-storing device, be communicated to producing well GEOTHERMAL WATER processing means,
Primary flash device, two-stage flash device, steam turbine, low pressure compressor, high pressure compressor, vaporizer, it is communicated to inverted well
Central evaporator, intercooler, condenser；Described heat-storing device and trough type solar heat-collector are interconnected formation
Closed circulation；
Wherein GEOTHERMAL WATER processing means is respectively communicated with import and the import of primary flash device of heat-storing device, and the outlet of heat-storing device is even
The import of logical primary flash device；Primary flash device is provided with saturated vapor outlet and saturation water exports, saturated vapor outlet
To the air inlet of steam turbine, saturation water outlet is to two-stage flash device；The evaporation of the air vent connection vaporizer of steam turbine
Device the first air inlet, the first outlet of vaporizer accesses inverted well；Two-stage flash device includes saturated vapor outlet and saturation water
Outlet, the air inlet of the saturated vapor outlet steam turbine of two-stage flash device, the saturation water outlet of two-stage flash device
First import of central evaporator, central evaporator first exports and accesses inverted well；
Vaporizer is by accessing intercooler the first import, the 3rd of intercooler after refrigerant tubing connection low pressure compressor
Outlet connects high pressure compressor, and high pressure compressor connects condenser, and the outlet of condenser returns and is communicated to intercooler the
Two imports, the second import of intercooler the first outlet vaporizer, the second outlet of intercooler in
Between the second import of vaporizer, central evaporator the second outlet is to intercooler triple feed inlet.
2, a kind of solar energy according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, described low pressure compressor includes low pressure compressor air inlet and low pressure compressor air vent, low pressure compressor
The refrigerant tubing of air inlet connection vaporizer, the first import of low pressure compressor air vent connection intercooler.
In the present invention, described low pressure compressor includes low pressure compressor air inlet and low pressure compressor air vent, and low pressure is compressed
The refrigerant tubing of machine air inlet connection vaporizer, the first import of low pressure compressor air vent connection intercooler.
In the present invention, between described intercooler and condenser, it is provided with first throttle valve.
In the present invention, described high pressure compressor includes high pressure compressor air inlet and high pressure compressor air vent, high pressure compressed
3rd outlet of machine air inlet connection intercooler, the import of high pressure compressor air vent connection condenser.
In the present invention, between described vaporizer and intercooler, it is provided with second throttle.
In the present invention, described GEOTHERMAL WATER processing means is provided with valve with heat-storing device.
Beneficial effect: (1) GEOTHERMAL WATER, directly as power generation cycle working medium, absorbs heat in heat-storing device and improves self
Temperature levels, and use the mode of double flash evaporation, make the acting ability of steam turbine be greatly enhanced, system effect can be effectively improved
Rate and generated energy.Heat-storing device can eliminate the drawback that solar energy is unstable to a certain extent, makes turbine-inlet temperature
Constant, it is ensured that the stability of electric energy output and reliability.
(2) refrigerant liquid in central evaporator absorbs the heat of two-stage flash device discharge saturation water, reduces saturation water
Temperature levels.Refrigerant liquid in vaporizer absorbs the heat of gas turbine exhaust gas makes its condensation liquefaction.Steam turbine is arranged
The low level heat energy that gas circulates as heat pump heat supply, produces the higher hot water of temperature for user, had both saved cooling water,
Again the heat of the emission after generating is recycled.
(3) cold-producing medium of heat pump heat supply circulation temperature in vaporizer is relatively low, the system in gas turbine exhaust gas and vaporizer
Cryogen has the biggest heat transfer temperature difference, and therefore heat can be discharged by condensation liquefaction quickly in vaporizer by gas turbine exhaust gas,
Two-stage flash device discharge saturation water reject heat to the cold-producing medium in central evaporator, two strands of current converge after temperature
Close to GEOTHERMAL WATER be drawn out of from producing well time temperature, finally import inverted well.The geothermal water temperature recharged and the water yield
Consistent with extracted out from producing well, therefore can avoid the situation that geothermal energy resources are exhausted.
Accompanying drawing explanation
With detailed description of the invention the present invention done below in conjunction with the accompanying drawings and further illustrates, the present invention above-mentioned or its
Advantage in terms of him will become apparent.
Fig. 1 is total system schematic diagram；
Fig. 2 is that solar energy heating circulates schematic diagram；
Fig. 3 is that geothermal power generation circulates schematic diagram；、
Fig. 4 is that heat pump heat supply circulates schematic diagram；
Fig. 5 is that heat pump heat supply circulates schematic diagram；
Fig. 6 is that heat pump heat supply circulates schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
As shown in Fig. 1～Fig. 5, the present invention includes trough type solar heat-collector 1, heat-storing device 2, GEOTHERMAL WATER processing means
3, primary flash device 4, two-stage flash device 5, steam turbine 6, low pressure compressor 7, high pressure compressor 8, vaporizer 9,
Central evaporator 10, intercooler 11, condenser 12, first throttle valve 13, second throttle 14 and valve
15, described heat-storing device 2 and trough type solar heat-collector 1 are interconnected formation closed circulation.
Wherein GEOTHERMAL WATER processing means 3 is respectively communicated with the import 2a of the heat-storing device 2 and import 4a of primary flash device 4,
The import 4a of heat-storing device 2 one outlet 2b connection primary flash device 4, primary flash device 4 is provided with saturated vapor outlet 4b
Export 4c, saturated vapor outlet 4b with saturation water and be communicated to the air inlet 6a of steam turbine 6, saturation water outlet 4c connection
To two-stage flash device 5, the air vent 6c of steam turbine 6 connects vaporizer 9, and vaporizer 9 first outlet accesses inverted well,
Two-stage flash device 5 includes that saturated vapor outlet 5b and saturation water outlet 5c, saturated vapor outlet 5b connect steam turbine 6
Air inlet 6b, saturation water outlet 5c connect central evaporator 10, central evaporator 10 first outlet 10a access back
Fill well.The GEOTHERMAL WATER extracted out from producing well enters into GEOTHERMAL WATER processing means 3, and the GEOTHERMAL WATER after purified process is through import
4a enter primary flash device 4 or enter in heat-storing device 2 improve temperature levels and after through import 4a flow into one-level dodge
Steaming device 4, the saturated vapor in primary flash device 4 flows into the air inlet 6a of steam turbine 6, primary flash device from outlet 4b
Saturation water in 4 flows into the import 5a of two-stage flash device 5 from outlet 4c, and the saturated vapor in two-stage flash device 5 is from going out
Mouth 5b flows into the air inlet 6b of steam turbine 6, and the saturation water in two-stage flash device 5 flows into central evaporator from outlet 5c
Import 10d, from import 10d flow into central evaporator 10 saturation water release heat after again from outlet 10a flow into back
Filling well, the aerofluxus of steam turbine 6 flows into the import 9c of vaporizer 9 from outlet 6c, and steam turbine 6 aerofluxus is in vaporizer 9
It is condensed into liquid and flows into inverted well from outlet 9d.
Intercooler 11 first import 11a is accessed after the refrigerant tubing 9a connection low pressure compressor 7 of vaporizer 9,
Intercooler 11 the 3rd outlet 11f connects high pressure compressor 8, and high pressure compressor 8 connects condenser 12, condenser
The outlet of 12 returns to intercooler the second import 11a, and intercooler first exports 11b and connects vaporizer 9 second
Import 9b, the second outlet 11c are communicated to the second import 10c of central evaporator 10, and central evaporator 10 second exports
10b is communicated to intercooler 11 triple feed inlet 11d.
Low pressure compressor 7 includes low pressure compressor air inlet 7a and low pressure compressor air vent 7b, low pressure compressor air inlet
The first of refrigerant tubing 9a, the low pressure compressor air vent 7b connection intercooler 11 of mouth 7a connection vaporizer 9
Import 11e.
Described high pressure compressor includes high pressure compressor air inlet 8a and high pressure compressor air vent 8b, and high pressure compressor enters
Entering of 3rd outlet 11f, high pressure compressor air vent 8b connection condenser 12 of QI KOU 8a connection intercooler 11
Mouthful.
It is provided with first throttle valve 13 between described intercooler 11 and condenser 12；
It is provided with second throttle 14 between described vaporizer 9 and intercooler 11；
Described GEOTHERMAL WATER processing means 3 is provided with valve 15 with heat-storing device 2.
Refrigerant liquid absorbs the heat of steam turbine 6 aerofluxus in vaporizer 9 and is gasificated into saturated refrigerant vapour, full
The refrigerant vapour of sum enters the air inlet 7a of low pressure compressor 7 through refrigerant tubing 9a, is compressed into intermediate pressure pm
Under superheated steam, superheated steam flows into the first import of intercooler 11 from the gas outlet 7b of low pressure compressor 7
11e, is then cooled to the saturated vapor under intermediate pressure pm in intercooler 11, satisfying under intermediate pressure pm
With steam from the air inlet 8a of the 3rd outlet 11f entrance high pressure compressor 8 of intercooler, saturated vapor is in high pressure pressure
Being compressed to condensing pressure pk in contracting machine 8, then entering from the gas outlet 8b of high pressure compressor 8 will condenser 12
Heat be released to cool down water, and after return to intercooling through first throttle valve 13 by intercooler the second import 11b
In device 11, the saturated refrigerant liquid in intercooler 11 exports 11b through second throttle from intercooler first
Return to vaporizer 9 continues heat absorption by vaporizer the second import 9b after 14 throttlings.In intercooler 11 one
Refrigerant liquid is divided to flow into central evaporator the second import 10c, refrigerant liquid through the second outlet 11c of intercooler 11
Body endothermic gasification in central evaporator 10 becomes saturated refrigerant vapour, then exports 10b through central evaporator second and return
Flow in intercooler triple feed inlet 11d.After the heat that cooling water is discharged in condenser 12, for user's day
Often live use.
Such as Fig. 2, solar energy heating circulation is made up of trough type solar heat-collector and heat-storing device, and conduction oil is at solar energy collection
Hot device absorbs solar energy, and stores energy in heat-storing device.
Such as Fig. 3, geothermal power generation circulation by GEOTHERMAL WATER processing means, heat-storing device, primary flash device, two-stage flash device,
Steam turbine, vaporizer and central evaporator composition, the GEOTHERMAL WATER extracted out from producing well enters into GEOTHERMAL WATER processing means, warp
GEOTHERMAL WATER after purified treatment be directly entered primary flash device 4a or enter in heat-storing device improve temperature levels then
Flowing into one-level vaporizer 4a, the saturated vapor that primary flash device and two-stage flash device flash off enters acting in steam turbine and sends out
Electricity, the saturation water that two-stage flash device flows out enters into and discharges heat in the central evaporator that heat pump heat supply circulates, steam turbine
Aerofluxus enters into and condenses heat release in the vaporizer that heat pump heat supply circulates, and last two strands of current import in inverted well.
Such as Fig. 4, heat pump heat supply circulation by vaporizer, low pressure compressor, intercooler, high pressure compressor, condenser,
First throttle valve, second throttle and central evaporator composition, refrigerant liquid absorbs steam turbine 6 in vaporizer 9
The heat of aerofluxus and be gasificated into saturated refrigerant vapour, enter into low pressure compressor 7 and be compressed under intermediate pressure pm
Superheated steam, in intercooler 11, be then cooled to the saturated vapor under intermediate pressure pm, intermediate pressure pm
Under saturated vapor be compressed to condensing pressure pk by high pressure compressor 8, enter and condenser 12 reject heat to cooling
Water, and after return to intercooler 11 through first throttle valve, the saturated refrigerant liquid in intercooler 11 is through second
Return to vaporizer 9 continues heat absorption after choke valve throttling.During part of refrigerant liquid in intercooler 11 flows into
Between in vaporizer 10 endothermic gasification become saturated refrigerant vapour, then be back in intercooler 11.Cooling water is cold
In condenser 12 after the heat of release, for user's daily use.
Fig. 6 is the lgp-h figure of heat pump heat supply circulation, i.e. pressure-enthalpy chart.Pressure-enthalpy chart using the enthalpy of cold-producing medium as abscissa, with
Pressure is vertical coordinate.In figure, the curve of coordinate is saturated liquid line, and the curve on the right is dry saturation vapor line.
Refrigerant liquid absorbs the heat of steam turbine 6 aerofluxus in vaporizer 9 and is gasificated into saturated refrigerant vapour,
In pressure-enthalpy chart corresponding be 8 to 1 process；Saturated refrigerant vapour enters into low pressure compressor 7 and is compressed into centre
Superheated steam under pressure p m, in pressure-enthalpy chart corresponding be 1 to 2 process；Superheated steam is then at intercooling
Device 11 is cooled to the saturated vapor under intermediate pressure pm, in pressure-enthalpy chart corresponding be 2 to 3 process；Middle
Saturated vapor under pressure p m is compressed to condensing pressure pk by high pressure compressor 8, and in pressure-enthalpy chart, correspondence is 3 to 4
Process；Condensing pressure is that the steam of pk enters in condenser 12 and rejects heat to cool down water, corresponding in pressure-enthalpy chart
Be 4 to 5 process；Then returning to intercooler 11 through choke valve A13, corresponding in pressure-enthalpy chart is 5 to arrive
The process of 6；Saturated refrigerant liquid in intercooler 11 returns to vaporizer 9 after choke valve B14 throttles and relays
Continuous heat absorption, in pressure-enthalpy chart corresponding be 7 to 8 process；Part of refrigerant liquid stream in intercooler 11
Enter endothermic gasification in central evaporator 10 and become saturated refrigerant vapour, in pressure-enthalpy chart corresponding be 6 to 3 process,
It is back to again in intercooler 11.From central evaporator backflow saturated refrigerant vapour and cooled down by intercooler
Low-pressure compressor outlet gas for saturated vapor enters high pressure compressor together.Cooling water is by release in condenser 12
After heat, for user's daily use.
The total following three kinds of mode of operations of native system:
1, solar energy heating+geothermal power generation circulation+heat pump heat supply circulation: when there being solar radiation, groove type solar thermal-arrest
The solar energy of absorption is stored in heat-storing device by device.By producing well GEOTHERMAL WATER out, enter solar energy heat-storage device
Absorb heat, subsequently into primary flash device, produce " primary steam " and enter steam turbine high-pressure cylinder generating acting afterwards, surplus
Remaining saturation water then enters two-stage flash device, and " indirect steam " that produce pressure lower enters same steam turbine low-pressure afterwards
Cylinder generating acting, the hot water after two-stage flash device flash distillation flows into the central evaporator of heat pump heat supply circulation, the aerofluxus of steam turbine
Entering into and condense heat release in the vaporizer of heat pump heat supply circulation, last two strands of current import in inverted well.Heat pump heat supply circulates
Reject heat to cool down water, for user by condenser.
2, solar energy heat-storage+geothermal power generation circulation+heat pump heat supply circulation: when not having solar radiation, store up in heat-storing device
The heat deposited remains able to the temperature levels for promoting GEOTHERMAL WATER, now by producing well GEOTHERMAL WATER out, enters the sun
Can absorb heat by heat-storing device, subsequently into primary flash device, generation " primary steam " enters steam turbine high-pressure cylinder afterwards and sends out
Electricity acting, remaining saturation water then enters two-stage flash device, and " indirect steam " that produce pressure lower enters same afterwards
Turbine low pressure cylinder generating acting, the hot water after two-stage flash device flash distillation flows into the central evaporator of heat pump heat supply circulation, vapour
The aerofluxus of turbine enters into and condenses heat release in the vaporizer that heat pump heat supply circulates, and last two strands of current import in inverted well.Heat
Pump heating cycle rejects heat to cool down water, for user by condenser.
3, geothermal power generation circulation+heat pump heat supply circulation: when not having solar radiation, the heat stored in heat-storing device is
Can not be used for promoting the temperature levels of GEOTHERMAL WATER, now by producing well GEOTHERMAL WATER out, be directly entered primary flash device,
Producing " primary steam " and enter steam turbine high-pressure cylinder generating acting afterwards, remaining saturation water then enters two-stage flash device, produces
" indirect steam " that raw pressure is lower enters same turbine low pressure cylinder generating acting afterwards, after two-stage flash device flash distillation
Hot water flows into the central evaporator of heat pump heat supply circulation, and the aerofluxus of steam turbine enters in the vaporizer that heat pump heat supply circulates cold
Solidifying heat release, last two strands of current import in inverted well.Heat pump heat supply cycles through condenser and rejects heat to cool down water,
For user.
The invention provides a kind of solar energy and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system, implement
The method of this technical scheme and approach are a lot, and the above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvement
And retouching, these improvements and modifications also should be regarded as protection scope of the present invention.Each ingredient the clearest and the most definite in the present embodiment
Prior art is all can use to be realized.
Claims (6)
1. a solar energy and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system, it is characterised in that include slot type
Solar thermal collector (1), heat-storing device (2), it is communicated to the GEOTHERMAL WATER processing means (3) of producing well, primary flash
Device (4), two-stage flash device (5), steam turbine (6), low pressure compressor (7), high pressure compressor (8), vaporizer
(9) central evaporator (10) of inverted well, intercooler (11), condenser (12), it are communicated to；
Described heat-storing device (2) and trough type solar heat-collector (1) are interconnected formation closed circulation；
Wherein GEOTHERMAL WATER processing means (3) is respectively communicated with the import (2a) of heat-storing device (2) and primary flash device (4)
Import (4a), the import (4a) of the outlet (2b) connection primary flash device (4) of heat-storing device (2)；One-level is dodged
Steaming device (4) is provided with saturated vapor outlet (4b) and saturation water outlet (4c), and saturated vapor outlet (4b) is communicated to
The air inlet (6a) of steam turbine (6), saturation water outlet (4c) is communicated to two-stage flash device (5)；Steam turbine (6)
Air vent (6c) connection vaporizer (9) vaporizer the first air inlet (9c), vaporizer (9) first outlet
(9d) inverted well is accessed；Two-stage flash device (5) includes saturated vapor outlet (5b) and saturation water outlet (5c),
The air inlet (6b) of saturated vapor outlet (5b) connection steam turbine (6) of two-stage flash device (5), two-stage flash device
(5) first import (10d) of saturation water outlet (5c) connection central evaporator (10), central evaporator (10)
First outlet (10a) accesses inverted well；
Vaporizer (9) accesses intercooler (11) the afterwards by refrigerant tubing (9a) connection low pressure compressor (7)
One import (11e), the 3rd outlet (11f) of intercooler (11) connects high pressure compressor (8), high pressure compressed
Machine (8) connects condenser (12), and the outlet return of condenser (12) is communicated to intercooler (11) second and enters
Mouth (11a), second import (9b) of intercooler (11) first outlet (11b) connection vaporizer (9), in
Between the second outlet (11c) of cooler (11) be communicated to second import (10c) of central evaporator (10), middle
Vaporizer (10) second outlet (10b) is communicated to intercooler (11) triple feed inlet (11d).
A kind of solar energy the most according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, described low pressure compressor (7) includes low pressure compressor air inlet (7a) and low pressure compressor air vent
(7b), the refrigerant tubing (9a) of low pressure compressor air inlet (7a) connection vaporizer (9), low pressure compressor is arranged
First import (11e) of QI KOU (7b) connection intercooler (11).
A kind of solar energy the most according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, described high pressure compressor includes high pressure compressor air inlet (8a) and high pressure compressor air vent (8b),
3rd outlet (11f) of high pressure compressor air inlet (8a) connection intercooler (11), high pressure compressor air vent
(8b) import of connection condenser (12).
A kind of solar energy the most according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, between described intercooler (11) and condenser (12), be provided with first throttle valve (13).
A kind of solar energy the most according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, between described vaporizer (9) and intercooler (11), be provided with second throttle (14).
A kind of solar energy the most according to claim 1 and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system,
It is characterized in that, described GEOTHERMAL WATER processing means (3) is provided with valve (15) with heat-storing device (2).
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| CN201610248819.9A CN105888992B (en) | 2016-04-20 | 2016-04-20 | A kind of solar energy and ground heat integration double flash evaporation double-work medium circulating generation hot-water heating system |
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| CN108223317A (en) * | 2018-01-30 | 2018-06-29 | 中国华能集团清洁能源技术研究院有限公司 | A kind of coupling power-generating apparatus and method using solar energy heating geothermal tail water |
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| CN110307130A (en) * | 2019-07-01 | 2019-10-08 | 东方电气集团东方汽轮机有限公司 | Geothermal energy and solar energy complicated utilization system and method |
| CN110307130B (en) * | 2019-07-01 | 2021-03-09 | 东方电气集团东方汽轮机有限公司 | Geothermal energy and solar energy combined utilization system and method |
| CN111023227B (en) * | 2019-11-21 | 2021-06-25 | 东南大学 | Double-stage compression heat source tower heat pump system suitable for cold areas |
| CN111023227A (en) * | 2019-11-21 | 2020-04-17 | 东南大学 | Double-stage compression heat source tower heat pump system suitable for cold areas |
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