CN110186702A - A kind of geothermal power generation pilot system and its operation method - Google Patents
A kind of geothermal power generation pilot system and its operation method Download PDFInfo
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- CN110186702A CN110186702A CN201910467003.9A CN201910467003A CN110186702A CN 110186702 A CN110186702 A CN 110186702A CN 201910467003 A CN201910467003 A CN 201910467003A CN 110186702 A CN110186702 A CN 110186702A
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- 238000010248 power generation Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims abstract description 8
- 230000005494 condensation Effects 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 20
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000005485 electric heating Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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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
Abstract
The present invention provides a kind of geothermal power generation pilot system and its operation methods, wherein, the system comprises generating sets, the high temperature side heat-exchange unit being connected with the generating set evaporation ends, the low temperature side heat-exchange unit being connected with the generating set condensation end, it is connected to the high temperature heat pump unit of the high temperature side heat-exchange unit and low temperature side heat-exchange unit, and is connected to the Air-Cooled Heat Pump Unit of the low temperature side heat-exchange unit.Geothermal power generation pilot system of the invention is heated using the heat in Air-Cooled Heat Pump Unit draw air to high temperature side heat-exchange unit and low temperature side heat-exchange unit, hot water and electric power take self-circulation mode, for using heat-supplying modes such as electric heating or gas heatings, energy loss is greatly reduced, and in the generated output of electric power self-loopa process real-time testing generating set and power generation total amount；In addition, can reduce mechanical loss when generator is magnetic suspension generator, improve the generating efficiency of generator, further decrease experimentation cost.
Description
Technical field
The present invention relates to geothermal power generation technical field more particularly to a kind of geothermal power generation pilot system and its operation methods.
Background technique
Geothermal energy resources because its rich reserves, it is environmental-friendly, renewable the advantages that enable its be expected to become replace conventional fossil
One of the new energy in source.Geothermal power generation is a kind of new-generation technology using geothermal water and steam for power source, basic
Principle is similar with thermal power generation, and according to energy conversion principle, geothermal can be converted to mechanical energy first, then mechanical energy is turned
It is changed to electric energy, it is mechanical energy that geothermal power generation, which is actually the thermal energy of underground, and mechanical energy is then changed into electric energy again
Energy conversion process or be geothermal power generation.
System for geothermal production of electricity is established on the spot to the parameters of geothermal power generating device to test, and not only consumes a large amount of people
Power, material resources and financial resources, and be easy to be influenced by conditions such as nature and weathers or limitation, cause field test underground heat correlation to be joined
Number becomes abnormal difficult and seems unrealistic, therefore, establishes indoor geothermal power generation test system to simulate practical geothermal power generation
As a solution.
However, existing be used to simulate the indoor geothermal power generation test system of practical geothermal power generation, hot water needed for system
Mainly provided by modes such as electric heating or gas heatings, and the mode of electric heating or gas heating etc. consumes energy height, and existing
The generating efficiency for having geothermal power generation pilot system to use generator is not also high, in addition, existing geothermal power generation pilot system needs to lead to
Independent external load is crossed to test the generated output of electricity generation system and power generation total amount, not only causes simulation geothermal power generation plant test
System becomes more complicated, and occupied area is bigger, also results in the significant wastage to the energy, leads to the cost pole of ground heat test
Height has seriously affected the development and progress of geothermal power generation technology.Therefore, the prior art needs to improve.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of geothermal power generation pilot system and its fortune
Row method, it is intended to solve existing geothermal power generation pilot system and directly produce heat by modes such as electric heating or gas heatings
Water, consume energy high technical problem, and solves existing geothermal power generation pilot system needs and tested by independent external load
The technical issues of generated output and power generation total amount of electricity generation system.
Technical scheme is as follows:
A kind of geothermal power generation pilot system, wherein including generating set, the high temperature side being connected with the generating set evaporation ends is changed
Heat engine group, the low temperature side heat-exchange unit being connected with the generating set condensation end are connected to the high temperature side heat-exchange unit and low
The high temperature heat pump unit of warm side heat-exchange unit, and it is connected to the Air-Cooled Heat Pump Unit of the low temperature side heat-exchange unit.
The geothermal power generation pilot system, wherein the generating set includes the working medium pump for circuiting sequentially connection, evaporation
Device, generator and condenser.
The geothermal power generation pilot system, wherein the generator is magnetic suspension generator.
The geothermal power generation pilot system, wherein the high temperature side heat-exchange unit includes high-temperature water tank and the first heat exchange
Device, the high-temperature water tank, First Heat Exchanger and evaporator circuit sequentially connection；The low temperature side heat-exchange unit includes low temperature water tank
With the second heat exchanger, the low temperature water tank, the second heat exchanger and condenser circuit sequentially connection.
The geothermal power generation pilot system, wherein the high temperature heat pump unit includes the first compressor and first throttle
Valve, first compressor, First Heat Exchanger, first throttle valve and the second heat exchanger circuit sequentially connection.
The geothermal power generation pilot system, wherein the generator and the first compression mechatronics.
The geothermal power generation pilot system, wherein the Air-Cooled Heat Pump Unit includes circuiting sequentially the second pressure of connection
Contracting machine, plate heat exchanger, second throttle and air cooling heat exchanger, the plate heat exchanger are connected with the low temperature water tank.
A kind of operation method of geothermal power generation pilot system, wherein comprising steps of
Starting Air-Cooled Heat Pump Unit, Air-Cooled Heat Pump Unit is heat pump mode, and the heat pump mode is that plate heat exchanger is condenser,
Air cooling heat exchanger is evaporator, and the water in high-temperature water tank and low temperature water tank is heated to 40-50 DEG C using plate heat exchanger；
After the coolant-temperature gage in high-temperature water tank and low temperature water tank reaches 40-50 DEG C, start high temperature heat pump unit, while utilizing high temperature
Organic working medium in the heat pump unit pipeline cycle heat exchange between high temperature side heat-exchange unit and low temperature side heat-exchange unit, by high-temperature water
Water in case is heated to 90-100 DEG C；
After the temperature of the water in high-temperature water tank reaches 90-100 DEG C, Air-Cooled Heat Pump Unit is closed, high temperature side heat-exchange unit is passed through
As the heat source of generator, cold source of the low temperature side heat-exchange unit as generator utilizes generator air inlet and air outlet two sides
The temperature difference and pressure differential generator generate electricity.
The operation method of the geothermal power generation pilot system, wherein further comprise the steps of:
When the temperature in low temperature water tank is higher than 50 DEG C, Air-Cooled Heat Pump Unit starts refrigeration mode, and the refrigeration mode is board-like
Heat exchanger is evaporator, and air cooling heat exchanger is condenser, is dissipated by plate heat exchanger for the water in low temperature side heat-exchange unit water tank
Heat makes the temperature of water in low temperature water tank maintain 40-50 DEG C.
The operation method of the geothermal power generation pilot system, wherein further comprise the steps of:
After electrical power generators, the electric energy issued by generator combines driving high temperature heat pump unit operating with alternating current, and passes through height
The first compressor in pump assembly is warmed to measure the generated output of generator and power generation total amount.
The utility model has the advantages that a kind of geothermal power generation pilot system provided by the invention and its operation method, wherein the system packet
Generating set is included, the high temperature side heat-exchange unit being connected with the generating set evaporation ends is connected with the generating set condensation end
Low temperature side heat-exchange unit, be connected to the high temperature heat pump unit of the high temperature side heat-exchange unit and low temperature side heat-exchange unit, and
It is connected to the Air-Cooled Heat Pump Unit of the low temperature side heat-exchange unit.Geothermal power generation pilot system of the invention utilizes air-cooled heat pump machine
The heat in draw air is organized to be heated to high temperature side heat-exchange unit and low temperature side heat-exchange unit, meanwhile, hot water and electric power
Self-circulation mode is taken, for relatively using the heat-supplying modes such as electric heating or gas heating, greatly reduces energy loss, and
In the generated output and power generation total amount of electric power self-loopa process real-time testing generating set；In addition, when generator uses magnetcisuspension
When generator group, mechanical loss is greatly reduced, the generating efficiency of generator is improved, saves electric energy, reduces test
Cost.
Detailed description of the invention
Fig. 1 is a kind of present invention preferably geothermal power generation test system architecture schematic diagram；
Fig. 2 is a kind of present invention preferably generator unit structure schematic diagram；
Fig. 3 is a kind of present invention preferably operation method flow chart of geothermal power generation pilot system.
Specific embodiment
The present invention provides a kind of geothermal power generation pilot system and its operation methods, to make the purpose of the present invention, technical side
Case and effect are clearer, clear, and the present invention is described in more detail below.It should be appreciated that specific reality described herein
It applies example to be only used to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1, a kind of geothermal power generation pilot system provided by the invention, including generating set 10, with the generator
The connected high temperature side heat-exchange unit 20 of group evaporation ends, the low temperature side heat-exchange unit 30 being connected with the generating set condensation end, even
It is connected to the high temperature heat pump unit 40 of the high temperature side heat-exchange unit and low temperature side heat-exchange unit, and is connected to the low temperature side and changes
The Air-Cooled Heat Pump Unit 50 of heat engine group.
Geothermal energy resources because its rich reserves, it is environmental-friendly, renewable the advantages that enable its be expected to become replace conventional fossil
One of the new energy in source.But in Impact of Geothermal Development and Utilization geothermal generator used design and optimization need based on practical
Ground thermal parameter, and the efficiency of outer geothermal well in-site measurement generator out of office is obviously unrealistic, not only needs to expend a large amount of
Financial resource and material resource, and generator also suffers from the interference of the field environments factor such as weather and influences working efficiency, it is therefore necessary to
It establishes laboratory integration hot water and geothermal generator power generation performance is measured for control system, to be subsequent geothermal generator
Parameter optimization instructed.Currently, the common hot water in laboratory mainly takes electric heating or gas heating for control system
Etc. modes, not only energy consumption is big, but also needs to test generated output and the power generation of electricity generation system by independent external load
Total amount causes simulation geothermal power generation plant test macro to become more complicated, and generator system takes up a large area.
In order to solve the above-mentioned technical problem, the geothermal power generation pilot system of technical solution of the present invention, including generating set are high
System is tested in warm side heat-exchange unit, low temperature side heat-exchange unit, high temperature heat pump unit and Air-Cooled Heat Pump Unit, geothermal power generation of the invention
System can using the heat in Air-Cooled Heat Pump Unit draw air come in high temperature side heat-exchange unit hot water and low temperature side heat exchange
Hot water in unit is heated, meanwhile, hot water and electric power take self-circulation mode, relatively using the side such as electric heating or gas heating
Formula is come for the mode of heat hot water, greatly reduces energy loss, and send out in electric power self-loopa process real-time testing
The generated output and power generation total amount of motor group；In addition, when underground heat power generation test system using magnetic suspension generation unit to generate electricity when,
Mechanical loss can be greatly reduced, improve the generating efficiency of generator, the electric energy of generation is more, and it is more efficient, it is significant to reduce
The cost of test, can be greatly promoted the development of geothermal power generation technology.
Referring to fig. 2, in a preferred embodiment, the generating set includes the working medium pump for circuiting sequentially connection
60, evaporator 70, generator 80 and condenser 90.Generating set of the invention is the generator that Organic Rankine Cycle is utilized
Group, ideal Organic Rankine Cycle mainly include isentropic Compression, equipressure heating, constant entropy expansion and an isobaric condensation process.
The specific course of work of the present invention are as follows: the organic working medium of liquid heats in evaporator becomes gaseous state, gaseous to have
Machine working medium expansion work in generator drives generator rotation power generation, and gaseous organic working medium condenses within the condenser after power generation
For liquid, liquid organic working medium is pressurized in working medium pump after condensation.
In a preferred embodiment, the generator is magnetic suspension generator.Magnetic suspension generator uses magnetic
Suspension bearing technology greatly reduces mechanical loss so as to improve the efficiency of generator, becomes and realizes what underground heat efficiently utilized
Advantageous selection.
Referring to Fig. 1, in a preferred embodiment, the high temperature side heat-exchange unit includes high-temperature water tank 100 and
One heat exchanger 110, the high-temperature water tank, First Heat Exchanger and evaporator circuit sequentially connection；The low temperature side heat-exchange unit packet
Low temperature water tank 120 and the second heat exchanger 130, the low temperature water tank are included, the second heat exchanger and condenser circuit sequentially connection.It is preferred that
, high temperature side heat-exchange unit and low temperature side heat-exchange unit in the present invention include circulating pump, which can be common
Hot water circulating pump, it should be noted that the water temperature range of technical solution of the present invention high temperature water tank high temperature is 90-100 DEG C, low
Water temperature range in reservoir is 40-50 DEG C.
Referring to Fig. 1, in a preferred embodiment, the high temperature heat pump unit includes the first compressor 140 and the
One throttle valve 150, first compressor, First Heat Exchanger, first throttle valve and the second heat exchanger circuit sequentially connection.One
In kind of preferred embodiment, First Heat Exchanger is condenser, and the second heat exchanger is evaporator, when specific works, i.e., in high temperature
After coolant-temperature gage in water tank and low temperature water tank reaches preset range (40-50 DEG C), start high temperature heat pump unit, while utilizing high temperature
Organic working medium in the heat pump unit pipeline cycle heat exchange between high temperature side heat-exchange unit and low temperature side heat-exchange unit, passes through first
Heat exchanger (condenser) gives low temperature water tank by the second heat exchanger (evaporator) to be heated to the water in high-temperature water tank
In water cool down, the water in high-temperature water tank is heated to higher temperature range (90-100 DEG C).In addition, the technology of the present invention
Throttle valve in scheme can be with check valve tandem compound at one-way throttle valve, so that realization of the controlled medium in pipeline is unidirectional
Flowing；In addition, throttle valve of the invention can also be with overflow valve with Metering Flow Control Circuits are combined into, to accurately control pipeline
The size of internal working medium flow in pipeline.
Referring to Fig. 1, in a preferred embodiment, the generator and the first compression mechatronics.At this
In kind embodiment, geothermal power generation pilot system of the invention can be realized the self-loopa of some electrical power, in technology of the invention
In scheme, since the electric energy of the electric energy specific consumption of generation will lack, but the electric energy that geothermal generator of the invention is issued wants excellent
It is the power supply of high temperature heat pump unit prior to alternating current, and measures the power generation of generator by the first compressor in high temperature heat pump unit
Power and power generation total amount, achieve the purpose that can not only to test generator efficiency with this, but also system only needs during realizing operation
Part electric energy purpose is provided for high temperature heat pump unit, is played the role of energy-efficient.
Referring to Fig. 1, in a preferred embodiment, the Air-Cooled Heat Pump Unit includes circuit sequentially connection second
Compressor 160, plate heat exchanger 170, second throttle 180 and air cooling heat exchanger 190, the plate heat exchanger and the low temperature
Water tank is connected.Air-Cooled Heat Pump Unit in technical solution of the present invention is equivalent to a kind of net for air-source heat pump units, and air source heat pump is
It refers to be absorbed into gasify by organic/inorganic medium, then pass through compression the low-temperature heat quantity in air by evaporator
It is pressurized heating after machine compression, then water supply is converted by condenser and is heated, compressed high temperature heat heats water temperature with this, has
Energy-efficient feature, manufactures identical hot water amount, and energy-saving efficiency is 4-6 times of general electric heater, annual thermal effect ratio
It is electrically heated 4 times, utilizes efficiency height.Therefore, it can relatively be used using the geothermal power generation pilot system of technical solution of the present invention
The technical solutions such as electric heating or gas heating are more energy saving, can greatly promote the development of geothermal power generation technology.
The present invention discloses a kind of geothermal power generation pilot system, mainly include Air-Cooled Heat Pump Unit, low temperature side heat-exchange unit,
High temperature side heat-exchange unit, high temperature heat pump unit, generating set.Geothermal power generation pilot system takes the method for operation of self-loopa, can
With realize provide per hour 100 tons of flows, temperature be 95 DEG C hot water be used for simulate in low temperature geothermal generator test, system
Only part electric energy need to be provided to Air-Cooled Heat Pump Unit and circulating pump when operation and provide part electric energy, ground to high temperature heat pump unit
Thermal electric generator institute generated energy be supplied directly to high temperature heat pump unit use, and by the first compressor in high temperature heat pump unit come
Measure the generated output and power generation total amount of generator.A kind of compact-sized, occupied area of geothermal power generation pilot system of the present invention
It is small, and do not interfered by extraneous natural environment weather, it is stable, it is easily operated, it saves electric energy and energy real-time testing goes out underground heat
The generating efficiency and power of generator have wide application scenarios.
In addition, the present invention also provides a kind of operation methods of geothermal power generation pilot system referring to Fig. 3, comprising steps of
S100, starting Air-Cooled Heat Pump Unit, Air-Cooled Heat Pump Unit is heat pump mode, and the heat pump mode is that plate heat exchanger is cold
Condenser, air cooling heat exchanger are evaporator, and the water in high-temperature water tank and low temperature water tank is heated to 40-50 using plate heat exchanger
℃；
S200, after the coolant-temperature gage in high-temperature water tank and low temperature water tank reaches 40-50 DEG C, start high temperature heat pump unit, while benefit
With the organic working medium in high temperature heat pump unit pipeline between high temperature side heat-exchange unit and low temperature side heat-exchange unit cycle heat exchange, will
Water in high-temperature water tank is heated to 90-100 DEG C；
S300, after the temperature of the water in high-temperature water tank reaches 90-100 DEG C, close Air-Cooled Heat Pump Unit, exchanged heat by high temperature side
Heat source of the unit as generator, cold source of the low temperature side heat-exchange unit as generator, utilizes generator air inlet and air outlet
Temperature difference and pressure differential generator generate electricity.
In a preferred embodiment, the operation method of the geothermal power generation pilot system further comprises the steps of:
S400, when the temperature in low temperature water tank is higher than 50 DEG C, Air-Cooled Heat Pump Unit starts refrigeration mode, and the refrigeration mode is
Plate heat exchanger is evaporator, and air cooling heat exchanger is condenser, is in low temperature side heat-exchange unit water tank by plate heat exchanger
Water-cooled makes the temperature of water in low temperature water tank maintain 40-50 DEG C.
In a preferred embodiment, the operation method of the geothermal power generation pilot system further comprises the steps of:
After S500, electrical power generators, the electric energy issued by generator combines driving high temperature heat pump unit operating with alternating current, and leads to
The first compressor in excessively high warm pump assembly measures the generated output and power generation total amount of generator.
Geothermal power generation pilot system of the invention, in high temperature side, high temperature heat pump technology by the tail water come out from generator again
Secondary to be heated to 90-100 DEG C (preferably 95 DEG C), heat source comes from low temperature side heat-exchange unit.In low temperature side, pass through high temperature heat pump skill
The partial heat for the condensed water being discharged from generator is used to heat the tail water that high temperature side comes out from generator, another part by art
Heat is by the cooling heat dissipation of Air-Cooled Heat Pump Unit to maintain temperature in low temperature side heat-exchange unit constant for 40-50 DEG C (preferably 45
DEG C), temperature can be more stable, is fully able to realize the continual and steady power generation of generating set.
In conclusion the present invention provides a kind of geothermal power generation pilot system and its operation method, wherein the system packet
Generating set is included, the high temperature side heat-exchange unit being connected with the generating set evaporation ends is connected with the generating set condensation end
Low temperature side heat-exchange unit, be connected to the high temperature heat pump unit of the high temperature side heat-exchange unit and low temperature side heat-exchange unit, and
It is connected to the Air-Cooled Heat Pump Unit of the low temperature side heat-exchange unit.Geothermal power generation pilot system of the invention utilizes air-cooled heat pump machine
The heat in draw air is organized to be heated to high temperature side heat-exchange unit and low temperature side heat-exchange unit, relatively uses electric heating or combustion
For the heat-supplying modes such as gas heating, energy loss is greatly reduced；In addition, when generator uses magnetic suspension generation unit,
Magnetic suspension generator greatly reduces mechanical loss, improves the generating efficiency of generator, saves electric energy, reduces test
Cost.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of geothermal power generation pilot system, which is characterized in that including generating set, be connected with the generating set evaporation ends
High temperature side heat-exchange unit, the low temperature side heat-exchange unit being connected with the generating set condensation end are connected to the high temperature side heat exchange
The high temperature heat pump unit of unit and low temperature side heat-exchange unit, and it is connected to the air-cooled heat pump machine of the low temperature side heat-exchange unit
Group.
2. geothermal power generation pilot system according to claim 1, which is characterized in that the generating set includes circuiting sequentially
The working medium pump of connection, evaporator, generator and condenser.
3. geothermal power generation pilot system according to claim 2, which is characterized in that the generator is magnetic suspension generation
Machine.
4. geothermal power generation pilot system according to claim 1, which is characterized in that the high temperature side heat-exchange unit includes height
Reservoir and First Heat Exchanger, the high-temperature water tank, First Heat Exchanger and evaporator circuit sequentially connection；The low temperature side heat exchange
Unit includes low temperature water tank and the second heat exchanger, and the low temperature water tank, the second heat exchanger and condenser circuit sequentially connection.
5. geothermal power generation pilot system according to claim 2, which is characterized in that the high temperature heat pump unit includes first
Compressor and first throttle valve, first compressor, First Heat Exchanger, first throttle valve and the second heat exchanger circuit sequentially company
It connects.
6. geothermal power generation pilot system according to claim 5, which is characterized in that the generator and first compression
Mechatronics.
7. geothermal power generation pilot system according to claim 4, which is characterized in that the Air-Cooled Heat Pump Unit includes successively
The second compressor being connected by circulation, plate heat exchanger, second throttle and air cooling heat exchanger, the plate heat exchanger with it is described low
Reservoir is connected.
8. a kind of operation method of geothermal power generation pilot system, which is characterized in that comprising steps of
Starting Air-Cooled Heat Pump Unit, Air-Cooled Heat Pump Unit is heat pump mode, and the heat pump mode is that plate heat exchanger is condenser,
Air cooling heat exchanger is evaporator, and the water in high-temperature water tank and low temperature water tank is heated to 40-50 DEG C using plate heat exchanger；
After the coolant-temperature gage in high-temperature water tank and low temperature water tank reaches 40-50 DEG C, start high temperature heat pump unit, while utilizing high temperature
Organic working medium in the heat pump unit pipeline cycle heat exchange between high temperature side heat-exchange unit and low temperature side heat-exchange unit, by high-temperature water
Water in case is heated to 90-100 DEG C；
After the temperature of the water in high-temperature water tank reaches 90-100 DEG C, Air-Cooled Heat Pump Unit is closed, high temperature side heat-exchange unit is passed through
As the heat source of generator, cold source of the low temperature side heat-exchange unit as generator utilizes generator air inlet and air outlet two sides
The temperature difference and pressure differential generator generate electricity.
9. the operation method of geothermal power generation pilot system according to claim 8, which is characterized in that further comprise the steps of:
When the temperature in low temperature water tank is higher than 50 DEG C, Air-Cooled Heat Pump Unit starts refrigeration mode, and the refrigeration mode is board-like
Heat exchanger is evaporator, and air cooling heat exchanger is condenser, is dissipated by plate heat exchanger for the water in low temperature side heat-exchange unit water tank
Heat makes the temperature of water in low temperature water tank maintain 40-50 DEG C.
10. the operation method of geothermal power generation pilot system according to claim 9, which is characterized in that further comprise the steps of:
After electrical power generators, the electric energy issued by generator combines driving high temperature heat pump unit operating with alternating current, and passes through height
The first compressor in pump assembly is warmed to measure the generated output of generator and power generation total amount.
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| CN112412718A (en) * | 2020-12-09 | 2021-02-26 | 四川大学 | Five-stage step in-situ geothermal power generation system |
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