CN108397936B - A kind of Combined cold-heat-power supplying circulation system and method - Google Patents
A kind of Combined cold-heat-power supplying circulation system and method Download PDFInfo
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- CN108397936B CN108397936B CN201810165758.9A CN201810165758A CN108397936B CN 108397936 B CN108397936 B CN 108397936B CN 201810165758 A CN201810165758 A CN 201810165758A CN 108397936 B CN108397936 B CN 108397936B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 62
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000008961 swelling Effects 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 30
- 239000012071 phase Substances 0.000 claims description 20
- 239000011555 saturated liquid Substances 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 claims description 8
- 239000002028 Biomass Substances 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
本发明提供了提供一种冷、热、电联供循环系统及方法，主要包括：膨胀部件、发电机、冷却器、节流阀、蒸发器、气液分离器、压缩机、工质泵和加热器。该系统实现了冷、热、电三个功能模块结合的闭合循环系统，循环工质吸收热能进入循环系统后，能量之间不断转化传递，并未向环境中释放热量，系统的能量损失仅局限在系统保温不充分时向外散失的热量，在忽略系统管路散热的前提下，系统冷热电联合供应能效甚至能够达到150％以上。
The invention provides a combined cooling, heating and electricity circulation system and method, which mainly includes: an expansion part, a generator, a cooler, a throttle valve, an evaporator, a gas-liquid separator, a compressor, a working medium pump and a heater. The system realizes a closed cycle system that combines the three functional modules of cold, heat and electricity. After the circulating working fluid absorbs thermal energy and enters the circulating system, the energy is continuously converted and transferred without releasing heat to the environment, and the energy loss of the system is only limited When the heat dissipation of the system is insufficient, the energy efficiency of the combined cooling, heating and power supply of the system can even reach more than 150% under the premise of ignoring the heat dissipation of the system pipeline.
Description
Technical field
The present invention relates to hot and cold, electric technical field is outwardly provided using thermal energy, specifically one kind is in Trans-critical cycle
In cyclic process absorb high-grade thermal energy and outwardly simultaneously supply it is hot and cold, electric, realize supply efficiency be greater than absorption initial heat
The hot and cold of amount, the electricity supply circulatory system and method.
Background technique
Continuous improvement with the modern society mankind to various high-quality life requirements tends to multiplicity to energy supply form
Change.Meanwhile the form of energy shortages is increasingly severe, the idea of high-efficiency environment friendly is gradually rooted in the hearts of the people, effective energy new technique
As the main flow direction studied at present.Hot and cold, electric is the most important three kinds of energy supply forms of human demand, single energy
Supply form is difficult to meet human wants, and hot and cold, electric trilogy supply technology can provide three kinds of various forms of energy simultaneously,
Convenient for meeting the needs of people's different form energy simultaneously, and three kinds of energy supply forms can be cooperateed in internal system
Matching, system totality energy consumption efficiency are higher.
Current hot and cold, electric trilogy supply technology is mainly using natural gas as heat source, and minority is using solar energy as heat source.Often
Hot and cold, the electric trilogy supply technology of rule, burning natural gas generate thermal energy, and thermal energy is for driving the actings such as internal combustion engine, gas turbine portion
Part, by generator, outwardly user provides electric energy；By the flue gas of the acting component such as internal combustion engine, gas turbine, returned using heat
Receiving apparatus recycles waste heat energy, and waste heat a part of recycling directs out boundary user and provides thermal energy, and another part drives bromination
Lithium-absorbing formula refrigeration unit, outwardly user provides cooling capacity.
Chinese patent CN106152602A discloses a kind of compound system of combustion gas hot and cold, electric trilogy supply and earth source heat pump
The waste heat that system, generating set and lithium bromide absorption refrigerating set generate is exchanged heat by ground source heat pump technology and soil, will
Waste heat is stored in underground, compared with traditional cooling tower cooler, saves the water resource in cooling procedure, and winter
It can use ground source heat pump technology, extract this part waste heat for building heating.
Chinese patent CN103727703B discloses a kind of recycling cold, heat and power triple supply system, is by hot and cold, electric three
The system that the cryogenic gas of co-feeding system discharge recycles first passes through one by the cryogenic gas after lithium cold Hot water units
Grade low-temp flue gas heat-exchange unit and water exchange heat, and prepare domestic hot-water, then exchange heat by second level low-temperature flue gas heat exchanger and catalyst carrier, carry
Thermit powder is absorbed with refrigerant heat exchanger after heat, and refrigerant suction heat enters condenser by compressor, in heating loop
Water heat exchange, heats for user, solves the problems, such as the recycling of combined supply system discharge cryogenic gas, trilogy supply is greatly improved
The energy utilization rate of system.
Chinese patent CN204154024U discloses that a kind of domain type is hot and cold, electric combined supply system, introduces energy tower conduct
Novel cold and heat source, summer energy tower discharge heat into air as cooling tower, and winter energy tower absorbs heat from air,
Heat is used to prepare domestic hot-water and building heating, more energy saving compared with traditional generating waste-heat or natural gas boiler heat,
And it solves the problems, such as winter heat source insufficiency in domain type cooling heating and power generation system, improves domain type cold, heat and electricity triple supply system
The efficiency and energy saving of system.
Chinese patent CN204962922U discloses a kind of novel combined supply system, is related to the cool and thermal power of building energy conservation emission reduction
Combined supply system, by biogas power generation technology, solar energy generation technology and heat pump techniques in conjunction with combined supply system, outwardly user
Hot and cold, electric three kinds of energy are provided, the problem of biogas power generation technology generated energy and cooling supply, heat supply deficiency, Er Qietong are not only solved
Crossing reduces pollution of the waste material to environment using this green energy resource of solar energy for biogas for converting waste materials such as municipal refuses.
Existing hot and cold, electric trilogy supply technology is that three functional modules are combined in a system, and three kinds of realization is various forms of
The supply of energy may be implemented the energy collaboration matching of internal system, be conducive to lifting system and totally use energy to a certain extent
Efficiency.But three functional modules of the internal system independently work, and the energy synergy between functional module is still not
Ideal is separated from each other the utilization of input thermal energy, and overall energy consumption efficiency still has room for promotion.
Summary of the invention
Relatively easy, compact it is an object of the present invention to provide a kind of system structure, heat integration is high-efficient
And hot and cold, the electricity supply circulatory system applied widely, realize the closed circulation system that hot and cold, electric three functional modules combine
System, the cool and thermal power joint supply efficiency that can be realized system are greater than the initial heat absorbed from the external world.
It is another object of the present invention to provide a kind of methods for carrying out supply of cooling, heating and electrical powers using the above-mentioned circulatory system.
In order to achieve the above object, the specific technical solution of the present invention is as follows:
A kind of hot and cold, electricity supply circulatory system, comprising: swelling part, generator, cooler, throttle valve, evaporator, gas
Liquid/gas separator, compressor, working medium pump and heater；
The swelling part is connect by universal driving shaft with the generator, and the high temperature and pressure cycle fluid expansion in it is defeated
Kinetic energy sends the generator to out, and the generator is translated into electric energy and is supplied to external user；The swelling part
Outlet by the inlet communication of pipeline and the cooler, the cycle fluid of the high-temperature low-pressure in the swelling part after acting into
Enter the cooler, the cycle fluid reaches near critical state, institute after the cooling medium in the cooler absorbs heat
Cooling medium is stated as heat source, and outwardly user provides thermal energy；
The outlet of the cooler reaches near critical state by inlet communication of the pipeline through throttle valve Yu the evaporator
The cycle fluid by the throttle valve throttling cooling reach gas-liquid two-phase state after enter the evaporator, in evaporator
In, the cycle fluid in gas-liquid two-phase state of low-temp low-pressure continues in the exothermic medium that evaporation absorbs in the evaporator
Heat, as cold source, outwardly user provides cold energy after the exothermic medium cooling in the evaporator；
The outlet of the evaporator passes through the inlet communication of pipeline and the gas-liquid separator, the gas of the gas-liquid separator
Mutually outlet is connected to the air intake duct of the compressor, the inlet communication of liquid-phase outlet and the working medium pump, the compressor
The inlet communication of exhaust pipe and the cooler, the outlet of the working medium pump and the inlet communication of the heater, the heating
The outlet of device and the inlet communication of the swelling part；The cycle fluid for keeping the two-phase state of low-temp low-pressure passes through
The gas-liquid separator separates are at saturated liquid working medium and saturation gaseous working medium, and the saturation gaseous working medium is via the compressor
It is directly entered the cooler after pressurization and continues to participate in above-mentioned circulation；The saturated liquid working medium is pressurized laggard through the working medium pump
Enter after the heater absorbs heat and reenters the above-mentioned circulation of the swelling part progress.
It further, further include regenerator, the regenerator includes low pressure inlet, low tension outlet, high-pressure inlet, high extrusion
Mouthful, the outlet of the swelling part is connected to the low pressure inlet by pipeline, the low tension outlet and the cooler into
Mouth connection；
The outlet of the working medium pump is connected to by pipeline with the high-pressure inlet, the high-pressure outlet and the heater
Inlet communication.
Further, the cooler includes level-one cooler and secondary coolers, and the two passes through pipeline sequential communication, institute
State the import of level-one cooler and the outlet of the swelling part, the outlets of the secondary coolers by pipeline with it is described
The inlet communication of throttle valve；
The outlet of the compressor is connected to the import of the secondary coolers by pipeline.
The present invention also provides the methods for carrying out supply of cooling, heating and electrical powers using the above-mentioned circulatory system, comprising the following steps:
A. described in the cycle fluid entrance for absorbing solar energy, geothermal energy, biomass energy or industrial exhaust heat energy in the heater
Swelling part expands and output shaft work drives the universal driving shaft for connecting the swelling part and the generator to rotate outward, the hair
Motor converts electric energy for the mechanical energy of the universal driving shaft received and is supplied to external user；
B. the cycle fluid of high-temperature low-pressure reaches near critical after entering cooler and cooling medium therein heat exchange after doing work
State, as heat source, outwardly user provides thermal energy to the cooling medium after heat absorption；
C. near critical state cycle fluid enter throttle valve throttling cooling after reaches gas-liquid two-phase state, it is laggard
Enter the evaporator and the two-phase state in low-temp low-pressure after the exothermic medium heat exchange in it, the exothermic medium conduct after cooling
Outwardly user provides cold energy to refrigerant；
D. the cycle fluid of the two-phase state in low-temp low-pressure is separated into saturated liquid into the gas-liquid separator
Working medium and saturation gaseous working medium, the saturation gaseous working medium continue via the cooler is directly entered after the compressor boost
Participate in above-mentioned circulation；The saturated liquid working medium through the working medium pump pressurization after enter the heater absorb heat after again into
Enter the swelling part and carries out above-mentioned circulation.
It further, further include regenerator, the regenerator includes low pressure inlet, low tension outlet, high-pressure inlet, high extrusion
Mouthful；
In step b, the cycle fluid of high-temperature low-pressure enters before cooler after acting, first passes through the low pressure inlet and enters
The regenerator is after regenerator recycles waste heat, then enters the cooler by the low tension outlet and cooled down；
In step d, before the saturated liquid working medium enters the heater after working medium pump pressurization, institute is first passed through
It states after high-pressure inlet absorbs a part of heat into the regenerator, then the heater is entered by the high-pressure outlet；
The cryogenic high pressure circulation industrial in high-temperature low-pressure cycle fluid and external pipe in the regenerator, in internal pipeline
Matter carries out heat exchange.
Further, the cooler includes level-one cooler and secondary coolers, and the two passes through pipeline sequential communication, step
In rapid b, the thermal energy that outwardly user provides is specifically included:
After the high-temperature low-pressure cycle fluid come out from swelling part first passes through the level-one cooler cooling, temperature and compression
The cycle fluid temperature close of machine outlet, the two mixing, the level-one cooler and two cooling using the secondary coolers
Outwardly user provides thermal energy to cooling medium in grade cooler jointly.
Further, when the critical-temperature of the cycle fluid is 20 DEG C~80 DEG C, using trans critical cycle；
Further, the cycle fluid is CO2Or HFC41.
One kind provided by the invention is hot and cold, the electricity supply circulatory system and method, realizes hot and cold, electric three functional modules
In conjunction with closed circulation system, realize smooth circulation of the cycle fluid in the circulatory system, power consumption is few, and cycle fluid inhale
After receipts thermal energy enters the circulatory system, constantly conversion transmitting, does not discharge heat, the energy loss of system into environment between energy
It is limited to outside dispersed heat when system keeps the temperature insufficient, under the premise of ignoring system pipeline heat dissipation, system cool and thermal power
Joint supply efficiency even can reach 150% or more.
Detailed description of the invention
Fig. 1 is that one kind provided by the invention is hot and cold, electricity supply circulating system structure figure；
Fig. 2 is that another kind provided by the invention is hot and cold, electricity supply circulating system structure figure；
1. working medium pump, 2. heaters, 3. swelling parts, 4. generators, 5. level-one coolers, 6. secondary coolers, 7. sections
Flow valve, 8. evaporators, 9. gas-liquid separators, 10. compressors, 11. regenerators.
Specific embodiment
Below in conjunction with specific embodiment and its attached drawing, the present invention will be further described.
Cycle fluid used in following implementation is CO2, with good environment friendly and extremely low make
Valence is a kind of environmentally protective working medium.Swelling part 3 can be expanding machine or steam turbine.
As shown in Figure 1, a kind of hot and cold, electricity supply circulatory system of one embodiment of the present invention, groundwork therein
Component is by swelling part 3, generator 4, cooler, throttle valve 7, evaporator 8, gas-liquid separator 9, compressor 10,1 and of working medium pump
Heater 2 is constituted.
Wherein using solar energy, geothermal energy, biomass energy or industrial exhaust heat can etc. various energy resources as the input heat source of system,
Absorb the cycle fluid CO of above-mentioned thermal energy2It is expanded into swelling part 3 and output shaft work drives connection swelling part 3 and hair outward
The universal driving shaft of motor 4 rotates, and generator 4 converts electric energy for the mechanical energy of the universal driving shaft received and is supplied to external user, real
The supply of electric energy is showed.
Later, the outlet of swelling part 3 passes through the inlet communication of pipeline and cooler, the height after doing work in swelling part 3
The cycle fluid CO of warm low pressure2Reach near critical state after into cooler and cooling medium therein heat exchange, it is cold after heat absorption
But as heat source, outwardly user provides thermal energy to medium, realizes the supply of thermal energy.
Cooler therein preferably includes two, respectively level-one cooler 5 and secondary coolers 6.Consider from bulge
The cycle fluid CO that part 3 comes out2Temperature is higher than the cycle fluid CO come out from compressor 102Temperature, first will be from swelling part 3
Cycle fluid CO out2It is cooling in level-one cooler 5, make its temperature and the cycle fluid CO from compressor 10 out2Temperature
Close, the two mixing, cooling using secondary coolers 6, the cooling medium in level-one cooler 5 and secondary coolers 6 is common
Outwardly user provides thermal energy.
The outlet of cooler reaches the circulation of near critical state by inlet communication of the pipeline through throttle valve 7 Yu evaporator 8
Working medium CO2Enter evaporator 8 after the throttling cooling of throttle valve 7 reaches two-phase state, continue to exchange heat with the exothermic medium in it,
Circulatory mediator after heat exchange is in the two-phase state of low-temp low-pressure, and as refrigerant, outwardly user is provided after exothermic medium cooling
Cold energy realizes the supply of cold energy.
Later, the outlet of evaporator 8 passes through the inlet communication of pipeline and gas-liquid separator 9, and the gas phase of gas-liquid separator 9 goes out
Mouth is connected to the air intake duct of compressor 10, the inlet communication of liquid-phase outlet and working medium pump 1, the exhaust pipe of compressor 10 and cooling
The inlet communication of device, the outlet of working medium pump 1 and the inlet communication of heater 2, the outlet of heater 2 and the import of swelling part 3
Connection；The cycle fluid of two-phase state in low-temp low-pressure enters gas-liquid separator 9 and is separated into saturated liquid working medium and satisfies
And gaseous working medium, saturation gaseous working medium are directly entered cooler after being pressurized via compressor 10 and continue to participate in above-mentioned circulation；Saturation
Liquid refrigerant reenters swelling part 3 after absorbing heat into heater 2 after the pressurization of working medium pump 1 and carries out above-mentioned circulation.
Compressor 10 therein, cooler, throttle valve 7, evaporator 8 are the basic composition component in cooling cycle system,
In the present solution, gas-liquid separator 9 is additionally arranged between the outlet of evaporator 8 and the import of compressor 10, so that from gas-liquid separation
The saturation gaseous state cycle fluid come out in device 9 is directly entered compressor 10 and continues to participate in above-mentioned circulation, and saturated liquid circulation industrial
Matter, which then passes through to reheat after working medium pump 1 is pressurized into heater 2, to be expanded externally acting into swelling part 3 and then enters
Cooler.In this process, the heat of cycle fluid will not outwardly scatter and disappear in addition to the heat dissipation of system unit, improve thermal energy
Whole utilization efficiency.Two coolers are used stage by stage simultaneously, when the high-temperature low-pressure cycle fluid come out from swelling part 3 is first
By the temperature after cooling of level-one cooler 5 and the cycle fluid temperature close come out after the compression of compressor 10, the two is in pipe
It is mixed into secondary coolers 6 in road to cool down again, at this point, cooling Jie after absorbing heat in level-one cooler 5 and secondary coolers 6
Outwardly user provides thermal energy to matter jointly.As shown in Fig. 2, a kind of hot and cold, electricity supply cyclic system of one embodiment of the present invention
System, is additionally arranged regenerator 11 in the system, and regenerator 11 is cannula structure, including low pressure inlet, low tension outlet, high-pressure inlet,
High-pressure outlet, the cryogenic high pressure cycle fluid in high-temperature low-pressure cycle fluid and external high pressure pipeline in internal low-voltage pipeline into
High temperature heat has been passed to the cryogenic high pressure cycle fluid in regenerator 11 by row heat exchange, high-temperature low-pressure cycle fluid, is realized
The cascade utilization of thermal energy and higher cycle efficieny.
In the above-mentioned circulatory system, the outlet of swelling part 3 is connected to the low pressure inlet of regenerator 11 by pipeline, regenerator
11 low tension outlet and the inlet communication of cooler, the high-temperature low-pressure cycle fluid after acting first pass through the low pressure of regenerator 11 into
Mouth enters regenerator 11, is absorbed after partial heat and enters cooler from low tension outlet again, high-temperature low-pressure cycle fluid is in backheat
After cooling down in device 11, temperature is closer to heat supply temperature, conducive to the cascade utilization for realizing thermal energy.The outlet of working medium pump 1 passes through
Pipeline is connected to the high-pressure inlet of regenerator 11, and high-pressure outlet passes through the inlet communication of pipeline and heater 2, by gas-liquid separator
The 9 saturated liquid cycle fluids come out are by entering regenerator 11, high pressure low temperature circulation by high-pressure inlet after the pressurization of working medium pump 1
Working medium absorbs a part of heat in regenerator 11, reduces the heat absorbed in heater 2, is conducive to be promoted and totally uses efficiency
Rate enters back into heater 2 later and carries out heat absorption, eventually enters into swelling part 3 and continues to participate in above system circulation.The implementation
The recurrent state of rest part is identical as the above-mentioned circulatory system in mode.The regenerator 11 added in the program further improves
The utilization rate of system thermal energy.
The present invention also provides the methods for carrying out supply of cooling, heating and electrical powers circulation using the above-mentioned circulatory system:
The cycle fluid that solar energy, geothermal energy, biomass energy or industrial exhaust heat energy are absorbed in heater 2 enters bulge
Part 3 expands and output shaft work drives the rotation of the universal driving shaft of connection swelling part 3 and generator 4 outward, and generator 4 will receive
The mechanical energy of universal driving shaft is converted into electric energy and is supplied to external user；The cycle fluid of high-temperature low-pressure enters cooler and its after acting
In cooling medium heat exchange after reach near critical state, the cooling medium after heat absorption as heat source outwardly user offer thermal energy；
Cycle fluid near critical state reaches gas-liquid two-phase state after entering the throttling cooling of throttle valve 7, enters evaporator 8 later
With in it exothermic medium heat exchange after be in low-temp low-pressure two-phase state, the exothermic medium after cooling as refrigerant outwardly
User provides cold energy；The cycle fluid of two-phase state in low-temp low-pressure enters gas-liquid separator 9 and is separated into saturated liquid
Working medium and saturation gaseous working medium, saturation gaseous working medium are directly entered cooler after being pressurized via compressor 10 and continue to participate in above-mentioned follow
Ring；Saturated liquid working medium through working medium pump 1 pressurization after enter heater 2 absorb heat after reenter swelling part 3 carry out it is above-mentioned
Circulation.
This programme is realized and is matched to the high Collaboration of thermal energy in cyclic process by an entirety circulation, plans as a whole to utilize system
System input thermal energy, realizes being closely connected, cooperate and supplying for hot and cold, electric three kinds of form of energy, has higher totality efficiency
Rate.In addition, system integration is higher, equipment size is smaller.
In the above-mentioned circulatory system, when the critical-temperature of cycle fluid is 20 DEG C~80 DEG C, using trans critical cycle.It is therein
Cycle fluid can use CO2, naturally it is also possible to meet the cycle fluid of circulatory system requirement using HFC41 etc..
More than, although the description of several embodiments of the invention, but these embodiments are intended only as example proposition
, it is not intended to limit the scope of the present invention.For these new embodiments, can be implemented with various other ways,
In the range of not departing from the gist of the invention, it is able to carry out various omissions, displacement and change.These embodiments and its change
Shape while being contained in scope and spirit of the present invention, is also contained in the invention recorded in claims and its impartial model
In enclosing.
Claims (8)
1. a kind of hot and cold, electricity supply circulatory system characterized by comprising swelling part, generator, cooler, throttle valve,
Evaporator, gas-liquid separator, compressor, working medium pump and heater；
The swelling part is connect by universal driving shaft with the generator, and the high temperature and pressure cycle fluid expansion output in it is dynamic
The generator can be sent to, the generator is translated into electric energy and is supplied to external user；
The outlet of the swelling part passes through the inlet communication of pipeline and the cooler, the height after doing work in the swelling part
The cycle fluid of warm low pressure enters the cooler, the cycle fluid after the cooling medium in the cooler absorbs heat
Reach near critical state, outwardly user provides thermal energy to the cooling medium as heat source；
The outlet of the cooler reaches the institute of near critical state by inlet communication of the pipeline through throttle valve Yu the evaporator
It states cycle fluid and enters the evaporator after throttle valve throttling cooling reaches gas-liquid two-phase state, in evaporator,
The cycle fluid in gas-liquid two-phase state of low-temp low-pressure continues the heat in the exothermic medium in the evaporation absorption evaporator
It measures, as cold source, outwardly user provides cold energy after the exothermic medium cooling in the evaporator；
The outlet of the evaporator passes through the inlet communication of pipeline and the gas-liquid separator, and the gas phase of the gas-liquid separator goes out
Mouth is connected to the air intake duct of the compressor, the inlet communication of liquid-phase outlet and the working medium pump, the exhaust of the compressor
The inlet communication of pipe and the cooler, the outlet of the working medium pump and the inlet communication of the heater, the heater
The inlet communication of outlet and the swelling part；The cycle fluid of the two-phase state of low-temp low-pressure is kept through the gas
Liquid/gas separator is separated into saturated liquid working medium and saturation gaseous working medium, after the saturation gaseous working medium is via the compressor boost
It is directly entered the cooler and continues to participate in above-mentioned circulation；The saturated liquid working medium enters described after working medium pump pressurization
Heater reenters the above-mentioned circulation of the swelling part progress after absorbing heat.
2. the circulatory system according to claim 1, which is characterized in that further include regenerator, the regenerator includes low pressure
Import, low tension outlet, high-pressure inlet, high-pressure outlet, the outlet of the swelling part are connected to the low pressure inlet by pipeline,
The inlet communication of the low tension outlet and the cooler；
The outlet of the working medium pump is connected to by pipeline with the high-pressure inlet, the import of the high-pressure outlet and the heater
Connection.
3. the circulatory system according to claim 1 or 2, which is characterized in that the cooler includes level-one cooler and two
Grade cooler, the two pass through pipeline sequential communication, the import of the level-one cooler and the outlet of the swelling part, institute
The outlet for stating secondary coolers passes through the inlet communication of pipeline and the throttle valve；
The outlet of the compressor is connected to the import of the secondary coolers by pipeline.
4. the method for carrying out supply of cooling, heating and electrical powers using the circulatory system described in claim 1, which is characterized in that including following step
It is rapid:
A. the cycle fluid for absorbing solar energy, geothermal energy, biomass energy or industrial exhaust heat energy in the heater enters the expansion
Component expands and output shaft work drives the universal driving shaft for connecting the swelling part and the generator to rotate outward, the generator
Electric energy, which is converted, by the mechanical energy of the universal driving shaft received is supplied to external user；
B. the cycle fluid of high-temperature low-pressure reaches near critical state after entering cooler and cooling medium therein heat exchange after doing work,
As heat source, outwardly user provides thermal energy to the cooling medium after heat absorption；
C. the cycle fluid near critical state reaches gas-liquid two-phase state after entering throttle valve throttling cooling, enters institute later
Evaporator and the two-phase state in low-temp low-pressure after the exothermic medium heat exchange in it are stated, the exothermic medium after cooling is as refrigeration
Outwardly user provides cold energy for agent；
D. the cycle fluid of the two-phase state in low-temp low-pressure is separated into saturated liquid working medium into the gas-liquid separator
With saturation gaseous working medium, the saturation gaseous working medium is continued to participate in via the cooler is directly entered after the compressor boost
Above-mentioned circulation；The saturated liquid working medium enters after the heater absorbs heat after working medium pump pressurization reenters institute
It states swelling part and carries out above-mentioned circulation.
5. according to the method described in claim 4, it is characterized in that, further include regenerator, the regenerator include low pressure inlet,
Low tension outlet, high-pressure inlet, high-pressure outlet；
In step b, the cycle fluid of high-temperature low-pressure enters before cooler after acting, first passes through described in the low pressure inlet entrance
Regenerator is after regenerator recycles waste heat, then enters the cooler by the low tension outlet and cooled down；
In step d, before the saturated liquid working medium enters the heater after working medium pump pressurization, the height is first passed through
It is pressed into after mouth absorbs a part of heat into the regenerator, then the heater is entered by the high-pressure outlet；
In the regenerator, high-temperature low-pressure cycle fluid in internal pipeline and the cryogenic high pressure cycle fluid in external pipe into
Row heat exchange.
6. according to the method described in claim 4, it is characterized in that, the cooler includes that level-one cooler and second level are cooling
Device, the two is by pipeline sequential communication, and in step b, the thermal energy that outwardly user provides is specifically included:
After the high-temperature low-pressure cycle fluid come out from swelling part first passes through the level-one cooler cooling, temperature goes out with compressor
The cycle fluid temperature close of mouth, the two mixing, cooling using the secondary coolers, the level-one cooler and second level are cold
But outwardly user provides thermal energy to the cooling medium in device jointly.
7. the circulatory system according to claim 4, which is characterized in that the critical-temperature of the cycle fluid is 20 DEG C~80
DEG C when, using trans critical cycle.
8. the circulatory system according to claim 4, which is characterized in that the cycle fluid is CO2Or HFC41.
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| CN109974323B (en) | 2019-03-05 | 2020-05-15 | 中国科学院力学研究所 | Combined cooling heating and power circulation method and system with jet flow cooling device |
| CN112360578B (en) * | 2020-10-26 | 2022-11-22 | 北京动力机械研究所 | Self-adaptive closed circulation thermoelectric conversion system |
| CN113090507B (en) * | 2021-04-02 | 2022-08-05 | 西安交通大学 | Combined cooling, heating and power system and method based on compressed air energy storage and organic Rankine cycle |
| TWI752876B (en) * | 2021-05-03 | 2022-01-11 | 奇鼎科技股份有限公司 | Hot and cold circulation system |
| CN114508869B (en) * | 2022-03-07 | 2024-09-10 | 郑州轻工业大学 | A solar-wind coupled cooling-electricity cogeneration energy system |
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Effective date of registration: 20230404 Address after: 075000 Economic Development Zone (Miaozhuang Village) in Wei County, Zhangjiakou City, Hebei Province Patentee after: Hebei Yixue Refrigeration Technology Co.,Ltd. Address before: 100190, No. 15 West Fourth Ring Road, Beijing, Haidian District Patentee before: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES |