CN107289665A - Regional Energy supply system - Google Patents

Regional Energy supply system Download PDF

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Publication number
CN107289665A
CN107289665A CN201710432657.9A CN201710432657A CN107289665A CN 107289665 A CN107289665 A CN 107289665A CN 201710432657 A CN201710432657 A CN 201710432657A CN 107289665 A CN107289665 A CN 107289665A
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CN
China
Prior art keywords
heat
combustion chamber
supply system
cold
energy supply
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Application number
CN201710432657.9A
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Chinese (zh)
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CN107289665B (en
Inventor
张彬彬
王兆林
郑淞生
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Xiamen University
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Xiamen University
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Priority to CN201710432657.9A priority Critical patent/CN107289665B/en
Publication of CN107289665A publication Critical patent/CN107289665A/en
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Publication of CN107289665B publication Critical patent/CN107289665B/en
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Classifications

    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • 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
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/14—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention discloses a kind of Regional Energy supply system, including liquefied ammonia feedway and combustion chamber, ammonia can be supplied combustion chamber by the liquefied ammonia feedway, and the combustion chamber also receives air supply, in addition to cold collection device and heat collecting apparatus；The cold collection device is connected between liquefied ammonia feedway and combustion chamber using while the liquefied ammonia that gasifies collects cold with outside cooling as ammonia and using the gasification latent heat of liquefied ammonia；The combustion chamber has exhausting loop, and the heat collecting apparatus is located on exhausting loop and collects the heat in exhaust with outward supplying heat.It has the following advantages that：Can outwards cooling and heat supply simultaneously, be such as garden, building region provides the cleaning and low-loss of hot and cold equal energy source and supply；Cold is provided by liquid ammonia gasification latent heat completely, burn the heat energy provided needed for refrigeration without ammonia, the fuel utilization efficiency of system is obviously improved.

Description

Regional Energy supply system
Technical field
The present invention relates to a kind of composite supply system of the energy in energy supply system, more particularly to region.
Background technology
Regional Energy supply system is supplied primarily directed to the Integrated Energy of industrial area, shopping centre, scientific and technological park or building System.The features such as system has close to user, cascade utilization, reliable the energy safety of supply.Combustion gas cold, heat and electricity triple supply (Combined Cooling heating and power, abbreviation CCHP) system is a kind of conventional Regional Energy supplier Formula, it will be obtained using natural gas as fuel using equipment such as small size gas turbine, gas internal-combustion engine, miniature combustion engines after combustion of natural gas The high-temperature flue gas obtained is initially used for generating electricity, then using residual heat heating, drives Absorption Refrigerator cooling.
However, the problem of combustion gas cold, heat and electricity triple supply system still has CO2 emission.Moreover, the combustion of prior art Refrigeration plant in gas cold, heat and power triple supply system mainly uses lithium-bromide absorption-type refrigerating machine.The refrigeration machine is by generator, cold Condenser, evaporator, absorber, heat exchanger, circulating pump etc. are constituted.Its operation principle is：Pass through pipe using steam in generator Road is heated to lithium-bromide solution, as the water in solution is constantly vaporized, and the lithium bromide water solution concentration in generator is continuous Rise, concentrated solution mixes group after releasing heat through heat exchanger in the presence of gravity and pressure difference with the weak solution in absorber Into intermediate solution.The water vapour produced in generator enters condenser and condensed after the cooling water temperature in condenser, as height Force down the aqueous water of temperature, when the water in condenser enters evaporator by choke valve, rapid expansion and vaporize, and vaporizing A large amount of heats for absorbing chilled water in evaporator in journey, so as to reach the purpose of cooling refrigeration.In the process, low temperature vapor Into absorber, absorbed by the lithium bromide water solution in absorber, solution concentration is gradually reduced, then is occurred by circulation pumped back Device, completes whole circulation.So circulation continuously produces cold.It follows that the combustion gas cold, heat and electricity triple supply of prior art In system, the heat energy for supply of constantly being burnt by natural gas realizes the thermodynamic cycle of refrigerant, therefore to the consumption of natural gas It is larger.
The content of the invention
The invention provides a kind of Regional Energy supply system, it is overcome in background technology with combustion gas cold, heat and electricity triple supply Deficiency present in system.
The present invention solve its technical problem the technical scheme used be：
Regional Energy supply system, including liquefied ammonia feedway and combustion chamber, the liquefied ammonia feedway, which can supply ammonia, to be fired Room is burnt, the combustion chamber also receives air supply, in addition to cold collection device and heat collecting apparatus；The cold collection device connects It is connected between liquefied ammonia feedway and combustion chamber using while the liquefied ammonia that gasifies collects cold as ammonia and using the gasification latent heat of liquefied ammonia With outside cooling；The combustion chamber has exhausting loop, and the heat collecting apparatus is located on exhausting loop and collects the heat in exhaust Amount is with outward supplying heat.
Among one embodiment：The cold collection device includes in air-conditioning equipment, refrigerating equipment or freezing equipment at least It is a kind of.
Among one embodiment：Also include refrigeration plant, the cold collection device and refrigeration plant are connected by heat exchanger, The cold collection device cools down the refrigeration plant by heat exchanger.
Among one embodiment：Also include heating equipment, the heat collecting apparatus connects the heating equipment and set to heat heat supply It is standby.
Among one embodiment：The heat-absorbing medium of the heat collecting apparatus includes water, is flowed into by water inside the heating equipment To heat heating equipment.
Among one embodiment：The heat collecting apparatus is caliduct, and the exhaust of the combustion chamber is passed through in the caliduct.
Among one embodiment：Also include steam turbine, the heat collecting apparatus includes steam generator, the steam generator Steam turbine is connected to produce the turbo driving of the Steam Actuation steam turbine.
Among one embodiment：The heat collecting apparatus includes heat pipe waste-heat recoverer, dividing wall type heat exchanger, regenerative heat-exchange At least one of device, ceramic heat exchanger or jet model mixing heating unit.
Among one embodiment：Also include PTO, combustion chamber connection PTO simultaneously passes through combustion chamber The exhaust propulsion power output device activity produced burn to export power.
Among one embodiment：Also include generator, the PTO connects generator to drive the generator to export Electric energy.
The technical program is compared with background technology, and it has the following advantages that：
The cold collection device is connected between liquefied ammonia feedway and combustion chamber using while the liquefied ammonia that gasifies is ammonia and profit Cold is collected with outside cooling with the gasification latent heat of liquefied ammonia, and the heat collecting apparatus is located on exhausting loop and collected in exhaust Heat is enable Regional Energy supply system outwards cooling and the heat supply simultaneously of the present invention, is such as garden, building with outward supplying heat Region provides the cleaning and low-loss supply of hot and cold equal energy source.The refrigeration plant of the present invention is provided by liquid ammonia gasification latent heat completely Cold, burnt the heat energy provided needed for refrigeration without ammonia, and the fuel utilization efficiency of system is obviously improved.Turn into N after ammonia burning2 And H2O, does not generate CO2, therefore the Regional Energy supply system does not produce CO2Discharge.China is current hydrazine yield and use in the world The most country of amount, accounts for 1/3 of Gross World Product or so, thus China has excellent condition to be done step-by-step from existing fossil energy Source turns to the reproducible ammonia energy.The gasification latent heat of liquefied ammonia is higher, and under -33.41 DEG C and 101.325kPa, gasification latent heat reaches 1371.18kJ/kg, thus the present invention using ammonia as Regional Energy supply system preferred fuel, ammonia burning final vacuum in waste heat, And the gasification latent heat (or cold) that liquid ammonia gasification is produced can be recovered efficiently or utilize in technical solution of the present invention.
The PTO drives the generator output electric energy, and material is thus formed cold, heat and power triple supply system.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the system diagram of the Regional Energy supply system of embodiment one；
Fig. 2 is the system diagram of the Regional Energy supply system of embodiment two；
Fig. 3 is the system diagram of the Regional Energy supply system of embodiment three；
Fig. 4 is the system diagram of the Regional Energy supply system of example IV.
Embodiment
Embodiment one
It refer to Fig. 1, Regional Energy supply system, including liquefied ammonia feedway 1, cold collection device 2, the and of combustion chamber 3 Heat collecting apparatus 4.The liquefied ammonia feedway 1 can supply ammonia combustion chamber 3, and the combustion chamber 3 also receives air supply, such as connected Compressor, the compressor compresses air simultaneously supplies combustion chamber；The fuel for including ammonia and air mixing combustion in the combustion chamber 3 Burn.In the present invention, the cold collection device 2 be connected to liquefied ammonia feedway 1 and combustion chamber 3 using and meanwhile the liquefied ammonia that gasifies as ammonia and Cold is collected with outside cooling using the gasification latent heat of liquefied ammonia；The combustion chamber 3 has exhausting loop, and the heat collecting apparatus 4 is set On exhausting loop and collect exhaust in heat with outward supplying heat.
The gasification latent heat of the liquefied ammonia is higher, under -33.41 DEG C and 101.325kPa, and gasification latent heat reaches 1371.18kJ/kg. The cold collection device 2 be mainly used in collect liquid ammonia gasification produced by gasification latent heat and outwards supply.The refrigeration of the present invention is set Standby to provide cold by liquid ammonia gasification latent heat completely, burn the heat energy provided needed for refrigeration, the fuel utilization efficiency of system without ammonia It is obviously improved.The cold collection device 2 can include heat exchanger or refrigeration plant.The heat exchanger can be：Plate-type heat-exchange At least one in device, shell-and-tube heat exchanger, double pipe heat exchanger, plate-fin heat exchanger, heat exchange of heat pipe, cooling tower or condenser Kind.The cold collection device 2 can also be：Air-conditioning equipment, refrigerating equipment or freezing equipment etc. can collect liquid ammonia gasification latent heat At least one of equipment, the liquefied ammonia is pipelined in these equipment to provide cold.
Above-mentioned heat collecting apparatus can be that heat pipe waste-heat recoverer, dividing wall type heat exchanger, heat regenerator, ceramics are changed At least one of hot device or jet model mixing heating unit.The heat pipe waste-heat recoverer be using heat pipe efficient heat transfer characteristic and The heat-exchanger rig of its environmental suitability manufacture, its structure type is：Monoblock type, separate type or combined type.The dividing wall type heat exchanger Heat exchanger can be：Cooling tower (or cooling column), gas scrubbing tower (or scrubbing tower), injecting type heat exchanger or hybrid Condenser.The heat regenerator is used for the equipment for carrying out regenerative heat-exchange, for requiring medium mixing than relatively low occasion. The built-in solid filler of the heat exchanger, to store up heat.The ceramic heat exchanger is that biography is instead of under high temperature or corrosive environment The metal heat-exchange equipment of system.The jet model mixing heating unit is the direct mixing by gas and water two-phase fluid to produce hot water Equipment, the waste heat for reclaiming exhaust using jet model mixing heating unit can be used to heating recirculated water.
Embodiment two
Fig. 2 is refer to, it is with the difference of embodiment one：Also include refrigeration plant 6 and heating equipment 7.The cold Collection device 2 and refrigeration plant 6 are connected by heat exchanger, and the cold collection device cools down the refrigeration by heat exchanger and set Standby, to realize the transmission of cold, the refrigeration plant is one or more of in air-conditioning equipment, refrigerating equipment or freezing equipment Combination.The heat collecting apparatus 4 connects the heating equipment 7 to heat heating equipment 7 to realize heat transfer, and wherein the heat is received The heat-absorbing medium of acquisition means 4 includes water, becomes hot water and flow into again inside heating equipment 7 to realize again to heating equipment 7 after water heat absorption Heating.The heating equipment 7 can be the pipeline heating registered one's residence, and the user that hot water is pipelined in region is so as to realize District heating.District heating is realized in addition it is also possible to which the exhaust of combustion chamber is passed directly into caliduct.
Embodiment three
Fig. 3 is refer to, it is with the difference of embodiment two：Also include steam turbine 7, the heat collecting apparatus 4 is Steam generator 4, the steam generator 4 connects steam turbine 7 to produce the turbo driving of the Steam Actuation steam turbine 7.This Embodiment heats steam with exhaust gas heat, and the rejection temperature reduction of steam turbine 7 has been obviously improved the utilization of the ammonia combustion heat Rate.Water and nitrogen are generated because ammonia burns in combustion chamber 3, CO2 emission and organic substance residual, therefore row are not produced To produce steam in the water that gas can be passed directly into steam generator 4, the device structure of steam generator 4 was both simplified or had carried High heat exchange efficiency.
Example IV
Fig. 4 is refer to, it is with the difference of embodiment one：Also include PTO 5 and generator 6.The combustion The activity of exhaust propulsion power output device 5 that the connection PTO 5 of room 3 and burning by combustion chamber 3 produces is burnt to export Power.The PTO 5 connects generator 6 to drive the generator 6 to export electric energy, so as to realize that the Regional Energy is supplied Hot and cold, the electric joint supply of system.The PTO 5 can be toggle or turbine mechanism.According to need Will, the refrigeration plant and heating equipment of embodiment two also can be set in the present embodiment four, or, the steam hair of embodiment three is set Raw device and steam turbine.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited according to this, i.e., according to The equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still belong in the range of the present invention covers.

Claims (10)

1. Regional Energy supply system, including liquefied ammonia feedway and combustion chamber, the liquefied ammonia feedway, which can supply ammonia, to burn Room, the combustion chamber also receives air supply, it is characterised in that：Also include cold collection device and heat collecting apparatus；The cold Collection device is connected between liquefied ammonia feedway and combustion chamber using while the liquefied ammonia that gasifies is dived as ammonia and using the gasification of liquefied ammonia Heat collects cold with outside cooling；The combustion chamber has exhausting loop, and the heat collecting apparatus is located on exhausting loop and collected Heat in exhaust is with outward supplying heat.
2. Regional Energy supply system according to claim 1, it is characterised in that：The cold collection device includes air-conditioning At least one of equipment, refrigerating equipment or freezing equipment.
3. Regional Energy supply system according to claim 1, it is characterised in that：Also include refrigeration plant, the cold is received Acquisition means and refrigeration plant are connected by heat exchanger, and the cold collection device cools down the refrigeration plant by heat exchanger.
4. Regional Energy supply system according to claim 1, it is characterised in that：Also include heating equipment, the heat is received Acquisition means connect the heating equipment to heat heating equipment.
5. Regional Energy supply system according to claim 4, it is characterised in that：The heat-absorbing medium of the heat collecting apparatus Including water, flow into inside the heating equipment to heat heating equipment by water.
6. Regional Energy supply system according to claim 1, it is characterised in that：The heat collecting apparatus is steam heating pipe Road, the exhaust of the combustion chamber is passed through in the caliduct.
7. Regional Energy supply system according to claim 1, it is characterised in that：Also include steam turbine, the heat is received Acquisition means include steam generator, and the steam generator connects steam turbine to produce the turbine fortune of the Steam Actuation steam turbine Turn.
8. Regional Energy supply system according to claim 1, it is characterised in that：The heat collecting apparatus is included more than heat pipe At least one of heat regenerator, dividing wall type heat exchanger, heat regenerator, ceramic heat exchanger or jet model mixing heating unit.
9. the Regional Energy supply system according at least one in claim 1 to 8, it is characterised in that：Also include power Output device, combustion chamber connection PTO and the exhaust propulsion power output device produced by combustion chambers burn are lived Move to export power.
10. Regional Energy supply system according to claim 9, it is characterised in that：Also include generator, the power output Device connects generator to drive the generator to export electric energy.
CN201710432657.9A 2017-06-09 2017-06-09 Regional energy supply system Active CN107289665B (en)

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CN107289665B CN107289665B (en) 2020-01-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111170273A (en) * 2020-03-03 2020-05-19 大连海事大学 Combined cooling heating and power system and power supply method based on ammonia energy ship
CN115585061A (en) * 2022-10-18 2023-01-10 南京工程学院 All-weather cooling, heating and power poly-generation system and method based on ammonia synthesis and cracking

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102149915A (en) * 2008-07-11 2011-08-10 丰田自动车株式会社 Gas turbine operation-controlling device
CN102272428A (en) * 2009-01-14 2011-12-07 丰田自动车株式会社 Engine
CN102272427A (en) * 2009-01-14 2011-12-07 丰田自动车株式会社 Engine
CN102562310A (en) * 2012-03-12 2012-07-11 云南大学 Method for reducing temperature of high-temperature metal piece of gas turbine by ammonia decomposition catalysis reaction
CN103180551A (en) * 2010-06-07 2013-06-26 空中客车德国运营有限责任公司 Exhaust gas treatment of gas turbine engines
CN203024482U (en) * 2013-01-15 2013-06-26 苏州工业园区嘉合环境技术工程有限公司 Afterheat recycling system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102149915A (en) * 2008-07-11 2011-08-10 丰田自动车株式会社 Gas turbine operation-controlling device
CN102272428A (en) * 2009-01-14 2011-12-07 丰田自动车株式会社 Engine
CN102272427A (en) * 2009-01-14 2011-12-07 丰田自动车株式会社 Engine
CN103180551A (en) * 2010-06-07 2013-06-26 空中客车德国运营有限责任公司 Exhaust gas treatment of gas turbine engines
CN102562310A (en) * 2012-03-12 2012-07-11 云南大学 Method for reducing temperature of high-temperature metal piece of gas turbine by ammonia decomposition catalysis reaction
CN203024482U (en) * 2013-01-15 2013-06-26 苏州工业园区嘉合环境技术工程有限公司 Afterheat recycling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111170273A (en) * 2020-03-03 2020-05-19 大连海事大学 Combined cooling heating and power system and power supply method based on ammonia energy ship
CN111170273B (en) * 2020-03-03 2023-08-15 大连海事大学 Combined cooling, heating and power supply system and power supply method based on ammonia energy ship
CN115585061A (en) * 2022-10-18 2023-01-10 南京工程学院 All-weather cooling, heating and power poly-generation system and method based on ammonia synthesis and cracking
CN115585061B (en) * 2022-10-18 2023-06-02 南京工程学院 All-weather cold-heat-power poly-generation system and method based on ammonia synthesis and cracking

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