CN108981220A - A kind of cold, heat and power triple supply system of biomass, natural gas and earth source heat pump coupling - Google Patents
A kind of cold, heat and power triple supply system of biomass, natural gas and earth source heat pump coupling Download PDFInfo
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- CN108981220A CN108981220A CN201810519864.2A CN201810519864A CN108981220A CN 108981220 A CN108981220 A CN 108981220A CN 201810519864 A CN201810519864 A CN 201810519864A CN 108981220 A CN108981220 A CN 108981220A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000002028 Biomass Substances 0.000 title claims abstract description 53
- 239000003345 natural gas Substances 0.000 title claims abstract description 51
- 230000008878 coupling Effects 0.000 title claims abstract description 16
- 238000010168 coupling process Methods 0.000 title claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000007789 gas Substances 0.000 claims abstract description 25
- 238000002309 gasification Methods 0.000 claims abstract description 22
- 239000000567 combustion gas Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 238000010248 power generation Methods 0.000 claims abstract description 12
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 239000003517 fume Substances 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 15
- 239000003546 flue gas Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 210000003296 saliva Anatomy 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000011555 saturated liquid Substances 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000000295 complement effect Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 239000002803 fossil fuel Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- 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
- F25B30/02—Heat pumps of the compression type
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1606—Combustion processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
-
- 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
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of biomass, the cold, heat and power triple supply system of natural gas and earth source heat pump coupling, the cold, heat and power triple supply system includes biogas sub-systems, the gas turbine power generation subsystem of biomass and natural gas cofiring, fume afterheat utilizes subsystem and earth source heat pump subsystem, capital equipment includes the first air compressor, gasification furnace, First Heat Exchanger, first water pump, second heat exchanger, third heat exchanger, purifying dust-removing device, gas mixer, combustion chamber, combustion gas turbine, second air compressor, regenerator, smoke absorption formula refrigeration machine, 4th heat exchanger, second water pump, ground heat exchanger, evaporator, compressor, condenser and throttle valve.The present invention comprehensively utilizes biomass, shallow layer geothermal energy and natural gas, integrated by combined supply system complementation, realizes the efficient utilization of renewable energy and fossil energy.The system overall energetic efficiency is up to 65% or more, is conducive to further decrease the dependence to fossil energy, optimizes energy supply system structure, realizes environment sustainable development.
Description
Technical field
The present invention relates to biomass, geothermal energy and proper utilization of natural gas field, especially a kind of biomass, natural gas and
The cold, heat and power triple supply system of earth source heat pump coupling.
Background technique
It is well known that demand for energy constantly increases with the sustained and rapid development of Chinese society economy, such as coal,
The fossil energies such as petroleum, natural gas constantly consume.In view of population base of China is big, per capita energy's relative inadequacy of resources, and
Coal, petroleum utilize a series of problem of environmental pollutions of bring, it is necessary to be further improved to existing energy utilization technology, mainly
Concentrate on two aspects: first is that the innovation of energy resource system integration mode；Second is that introducing it is mutual can to carry out multiple-energy-source in energy energy resources
The research work utilized is mended, to improve efficiency of energy utilization, reduces the pollution to environment.
Cooling-heating treatment system is directly facing user, provides the products such as cooling capacity, heat or electric power for user.By using
Different prime mover and residual heat using device realize the chemical energy of fuel and the synthesis cascade utilization of physical energy.The nearest cloth of the system
It sets, reduces conveyance loss, reduce initial cost, the independence between simultaneity factor improves the reliability and safety of energy supply
Property.It is pointed out according to national energy development strategy action plan, by Optimization of Energy Structure, wins the year two thousand twenty non-fossil energy and account for
Non-renewable energy consumption ratio weighs 15%.Therefore, be conducive to further by using the cooling-heating treatment system of renewable energy
Efficiency of energy utilization is improved, the dependence to fossil fuel is reduced.
Compared with other energy, biomass has the advantage that resourceful, widely distributed, neutral carbon, renewable etc. excellent
Point.However the disadvantages such as there is also biomass resource distributions to disperse, energy density is low.Therefore by using different biomass economies
Technology realizes that biomass from low energy to energy conversion, more efficiently utilizes biomass energy resource.Wherein, biogas
Change converts cleaning for solid biomass and facilitates the biomass synthesis gas utilized, and biomass chemical energy is transferred in synthesis gas,
Further increase synthesis gas utilization efficiency.In addition to this, shallow layer geothermal energy rich reserves, do not influenced by seasonal weather, be easy to
Stablize and utilize, on the one hand improves heat pump efficiency by using earth source heat pump, on the other hand improve its fractional energy savings.Simultaneously in view of ground
Source heat pump, which is used alone, takes heat excessive, be easy to cause underground thermal unbalance, therefore by considering earth source heat pump and dividing
Cloth energy resource system combines, and further increases distributed energy resource system fume afterheat utilization efficiency.
At present to the cold, heat and electricity three-way of the biomass of existing design theory and embodiment, natural gas and earth source heat pump coupling
Have for main problem existing for system research: 1) individually natural gas base distributed energy resource system or individually biomass-based distributed energy
Source system stability is poor；2) earth source heat pump isolated operation takes heat excessive, causes soil thermal unbalance；3) existing earth source heat pump
Fume afterheat is relatively low using COP, and fume afterheat is larger using energy loss.Therefore, pass through biomass, natural gas and geothermal
It complementary can utilize, realize that the synthesis cascade utilization needs of different quality energies between renewable energy and fossil fuel solve
Critical issue.
Summary of the invention
(1) technical problems to be solved
In order to realize the complementary integrated utilization between fossil fuel and renewable energy, energy resource system efficiency is improved, is met
The demand of user's different-energy product, the invention proposes the cool and thermal powers three of a kind of biomass, natural gas and earth source heat pump coupling
Co-feeding system.
(2) technical solution
In order to achieve the above object, the present invention provides the cool and thermal powers of a kind of biomass, natural gas and earth source heat pump coupling
Combined supply system, which is characterized in that the system includes:
Biogas sub-systems, including the first air compressor, gasification furnace, First Heat Exchanger, the first water pump, second change
Hot device, third heat exchanger and purifying dust-removing device, wherein the first air compressor improves air for the room temperature that pressurizes, atmospheric air
Pressure；Gasification furnace, for First Heat Exchanger outlet high temperature and pressure air, the second heat exchanger exit high-temperature high-pressure steam with
Biomass participates in gasification reaction, generates biogas, meets combustion gas turbine demand for fuel；First Heat Exchanger is gone out using gasification furnace
The high temperature heat of mouth biogas preheats the pressure-air of the first air compressor outlet, and it is anti-to meet gasification of biomass in gasification furnace
The demand answered；First water pump, for room temperature, water at atmospheric pressure to be carried out pressurized treatments, and be passed into the second heat exchanger；Second heat exchange
Device produces vapor using the high temperature heat of First Heat Exchanger outlet biogas, meets biomass gasification reaction in gasification furnace
Demand；Third heat exchanger produces 55 DEG C or so hot water using the second heat exchanger exit biogas thermal energy, meets user's heat demand；
Purifying dust-removing device, for ash content and condensed water in third heat exchanger exit biogas of going out.
The gas turbine power generation subsystem of biogas and natural gas cofiring, including gas mixer, combustion chamber, combustion gas are saturating
Flat, the second air compressor and regenerator, wherein gas mixer, is used to purifying dust-removing device exporting biogas and natural gas
It is mixed in a certain ratio, meets gas turbine power generation demand；Combustion chamber, for gas mixer export mixed biogas with
Natural gas participates in combustion reaction together with regenerator outlet air, produces high temperature and high pressure flue gas, driving combustion gas turbine acting power generation；
Combustion gas turbine is done work using the high temperature and high pressure flue gas of combustor exit and is generated electricity, and the electric need of user and combined supply system operation are met
It asks；Second air compressor improves the air pressure for entering regenerator for the room temperature that pressurizes, atmospheric air；Regenerator utilizes
Combustion gas turbine exports high-temperature flue gas thermal energy and preheats the second air compressor outlet pressure-air, improves the Air Temperature for entering combustion chamber
Degree.
Fume afterheat utilizes subsystem, including smoke absorption formula refrigeration machine and the 4th heat exchanger, wherein smoke absorption formula system
Cold produces chilled water, meets user's refrigeration requirement using regenerator exiting flue gas heat-driven refrigerator operation；4th changes
Hot device preheats 35-50 DEG C of condensator outlet or so of middle warm water, production 55 using smoke absorption formula refrigeration machine exiting flue gas thermal energy
DEG C hot water, meets user's heat demand.
Earth source heat pump subsystem, including the second water pump, ground heat exchanger, evaporator, compressor, condenser and throttle valve,
Wherein, the second water pump for the water to evaporator outlet into pressurized treatments, and is passed into ground heat exchanger；Ground heat exchanger,
Water for the second exit of pump exchanges heat with underground medium, improves the temperature that ground heat exchanger goes out saliva；Evaporator utilizes
Ground heat exchanger goes out the energy heats throttling valve outlet refrigerant of saliva, so that refrigerant reaches saturated-vapor state；Compressor,
Pressurized treatments are carried out to evaporator outlet refrigerant using the function that combustion gas turbine provides, so that refrigerant reaches superheat state；It is cold
Condenser, using the middle warm water of the refrigerant thermal energy preheating normal temperature and pressure water to 35-50 DEG C or so of compressor outlet, so that refrigerant
Reach saturated liquid state；Throttle valve carries out throttling decrease temperature and pressure processing for the refrigerant to condensator outlet, so that refrigeration
Agent reaches wet-steam phase.
(3) beneficial effect
It can be seen from the above technical proposal that the invention has the following advantages:
1, the cold, heat and power triple supply system that the biomass provided by the invention stated, natural gas and earth source heat pump couple uses
Natural gas, biomass and shallow layer geothermal energy are inputted as the co-feeding system energy, realize that renewable energy is complementary with fossil energy
It is integrated, the dependence and environmental pollution to fossil fuel are further decreased, so that co-generation system overall energetic efficiency is up to 65% or more.
2, the cold, heat and power triple supply system that the biomass provided by the invention stated, natural gas and earth source heat pump couple uses
Biogas and the driving combustion gas turbine acting of natural gas cofiring generate electricity, and input ratio by adjusting biomass and natural gas, realize
The cold and hot electricity output production capacity of combined supply system and proportion, enhance combined supply system flexibility.
3, the cold, heat and power triple supply system that the biomass provided by the invention stated, natural gas and earth source heat pump couple, successively
The grading, lifting that room temperature coolant-temperature gage is realized by condenser in earth source heat pump subsystem and the 4th heat exchanger, is conducive to further mention
Highland source heat pump subsystem efficiency.
4, the cold, heat and power triple supply system that the biomass provided by the invention stated, natural gas and earth source heat pump couple, sufficiently
Using gasification outlet of still biomass thermal energy, successively pre- thermal evaporation required air, vapor, while 55 DEG C of hot water of production are realized not
With the synthesis cascade utilization of grade thermal energy.
5, the cold, heat and power triple supply system that the biomass provided by the invention stated, natural gas and earth source heat pump couple is applicable in
In biomass and geothermal energy resource area abundant, by further with natural gas complementary, thus reduce to coal, natural gas according to
Rely, is conducive to optimize energy supply structure.
Detailed description of the invention
Fig. 1 is the signal for the cold, heat and power triple supply system that biomass, natural gas and earth source heat pump provided by the invention couple
Figure.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
As shown in Figure 1, being the cold, heat and electricity triple supply that the biomass stated, natural gas and earth source heat pump provided by the invention couple
The schematic diagram of system, the system include gas turbine power generation of biogas sub-systems, biogas and natural gas cofiring
System, fume afterheat utilize subsystem and earth source heat pump subsystem.
Biomass material (1) and the air (15) by First Heat Exchanger preheating, the water by the preheating of the second heat exchanger steam
Gas (18) enters gasification furnace together, and gasification reaction occurs and generates high temperature and pressure biogas (2), pre- subsequently into First Heat Exchanger
Heat from the first air compressor pressure-air (14), subsequent biogas (3) enter the second heat exchanger preheat from
The high pressure water (17) of first water pump generates high-temperature high-pressure steam (18), and the mesopilous organisms matter gas (4) by cooling enters third
The hot water that preheating heat user terminal return water (19) produces 55 DEG C or so in heat exchanger provides user's heat demand.Biogas is by heat exchange
Normal temperature high voltage state (5) are down into the ash content and condensed water in biogas of going out in purifying dust-removing device, then and natural gas
It is passed through in gas mixer and is mixed together in proportion.It is passed through combustion chamber together by mixed biogas and natural gas
Combustion reaction is participated in together with the air (25) by regenerator preheating, generates high temperature and high pressure flue gas (8), it is saturating to be subsequently passed combustion gas
Acting power generation in flat, gas turbine power generation is other than meeting electric power needed for user, also needed for offer combined supply system self-operating
Electric power.High-temperature smoke discharging (9) after acting power generation enters regenerator and preheats the second air compressor outlet air (24), to improve
The combustibility of gaseous mixture and air.Medium temperature flue gas (10) by cooling enters smoke absorption formula refrigeration machine, more than flue gas
Heat produces chilled water (27) and meets user's refrigeration requirement.In earth source heat pump subsystem, by ground heat exchanger and underground medium into
Heat in Soil amount is extracted in row heat exchange, and water (35) by heating enters in evaporator to exchange heat with refrigerant (33), by itself plus
Heat is to saturated-vapor state (34).Enter ground heat exchanger by the water (36) after the driving heat exchange of the second water pump, completes underground
Hot water heat exchange cycle.Then, it is heated by geothermal water in evaporator, low-temperature low-pressure refrigerant (33) is preheated to saturated vapor
State (34), and refrigerant is forced by superheated steam state (31) by compressor, subsequently enter condenser and normal temperature and pressure
Water (28) exchanges heat, and normal temperature and pressure water is heated to 35-50 DEG C or so of medium temperature water state (29).By the refrigerant of heat exchange
(32) enter throttle valve throttling and be cooled to wet-steam phase (33), to complete refrigerant thermodynamic cycle.Finally, middle warm water (29)
It exchanges heat in the 4th heat exchanger with smoke absorption formula refrigeration machine exiting flue gas (11), generates 55 DEG C or so hot water, meet and use
Family heat demand, 120 DEG C or so the flue gases after heat exchange are directly discharged into atmosphere.
The cold, heat and power triple supply system device that the biomass stated, natural gas and earth source heat pump provided by the present invention couple exists
It is as shown in table 1 that major parameter can be used in specific embodiment.Rice husk is chosen as research object, with 1200kg/h rice husk input quantity
System performance calculating is carried out, gasifying agent air input is about 2000kg/h, and vapor input quantity is about 400kg/h, and combustion gas is saturating
Natural gas input quantity about 250kg/h in flat power generation sub-system.R134a is chosen as refrigerant working medium in earth source heat pump subsystem.
Hunan area shallow layer geothermal energy zone of constant temperature is chosen simultaneously between 200 meters, and about 18-22 DEG C Soil Thermal physical property of temperature range is as ground
Source heat pump application reference standard.
Table 1
Table 2
The present invention is made full use of using biomass and natural gas complementary using production cool and thermal power, while using ground source heat pump technology
Shallow layer geothermal energy meets the different energy product demand of user.Make supply system efficiency by the multi-energy complementation system integration
Up to 65.13%, the efficient utilization of renewable energy is realized.At the same time, the combined supply system is using renewable energy and clear
Clean natural gas fossil fuel is complementary, reduces environmental pollution.
Claims (9)
1. the cold, heat and power triple supply system of a kind of biomass, natural gas and earth source heat pump coupling, which is characterized in that the system packet
It includes:
Biogas sub-systems, including the first air compressor, gasification furnace, First Heat Exchanger, the first water pump, the second heat exchange
Device, third heat exchanger and purifying dust-removing device, wherein the first air compressor improves air for the room temperature that pressurizes, atmospheric air
Pressure；Gasification furnace, high temperature and pressure air, the second heat exchanger exit high-temperature high-pressure steam and life for First Heat Exchanger outlet
Substance participates in gasification reaction, generates biogas, meets combustion gas turbine demand for fuel；First Heat Exchanger utilizes gasification outlet of still
The high temperature heat of biogas preheats the pressure-air of the first air compressor outlet, meets biomass gasification reaction in gasification furnace
Demand；First water pump, for room temperature, water at atmospheric pressure to be carried out pressurized treatments, and be passed into the second heat exchanger；Second heat exchange
Device produces vapor using the high temperature heat of First Heat Exchanger outlet biogas, meets biomass gasification reaction in gasification furnace
Demand；Third heat exchanger produces 55 DEG C or so hot water using the second heat exchanger exit biogas thermal energy, meets user's heat demand；
Purifying dust-removing device, for ash content and condensed water in third heat exchanger exit biogas of going out.
The gas turbine power generation subsystem of biogas and natural gas cofiring, including gas mixer, combustion chamber, combustion gas turbine,
Second air compressor and regenerator, wherein gas mixer, is pressed for purifying dust-removing device to be exported biogas with natural gas
Certain proportion mixing, meets gas turbine power generation demand；Combustion chamber exports mixed biogas and day for gas mixer
Right gas participates in combustion reaction together with regenerator outlet air, produces high temperature and high pressure flue gas, driving combustion gas turbine acting power generation；Combustion
Gas turbine is done work using the high temperature and high pressure flue gas of combustor exit and is generated electricity, and the electricity demanding of user and combined supply system operation are met；
Second air compressor improves the air pressure for entering regenerator for the room temperature that pressurizes, atmospheric air；Regenerator utilizes combustion gas
Turbine exports high-temperature flue gas thermal energy and preheats the second air compressor outlet pressure-air, improves the air themperature for entering combustion chamber.
Fume afterheat utilizes subsystem, including smoke absorption formula refrigeration machine and the 4th heat exchanger, wherein smoke absorption formula refrigeration machine,
Using regenerator exiting flue gas heat-driven refrigerator operation, chilled water is produced, user's refrigeration requirement is met；4th heat exchanger,
The middle warm water that 35-50 DEG C of condensator outlet or so is preheated using smoke absorption formula refrigeration machine exiting flue gas thermal energy, produces 55 DEG C of heat
Water meets user's heat demand.
Earth source heat pump subsystem, including the second water pump, ground heat exchanger, evaporator, compressor, condenser and throttle valve, wherein
Second water pump for the water to evaporator outlet into pressurized treatments, and is passed into ground heat exchanger；Ground heat exchanger is used for
The water of second exit of pump exchanges heat with underground medium, improves the temperature that ground heat exchanger goes out saliva；Evaporator utilizes underground
The energy heats throttling valve outlet refrigerant of heat exchanger exit water, so that refrigerant reaches saturated-vapor state；Compressor utilizes
The function that combustion gas turbine provides carries out pressurized treatments to evaporator outlet refrigerant, so that refrigerant reaches superheat state；Condenser,
Using the middle warm water of the refrigerant thermal energy preheating normal temperature and pressure water to 35-50 DEG C or so of compressor outlet, so that refrigerant reaches
Saturated liquid state；Throttle valve carries out throttling decrease temperature and pressure processing for the refrigerant to condensator outlet, so that refrigerant reaches
To wet-steam phase.
2. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, which, as input fuel, it is integrated to belong to multi-energy complementation using natural gas, biomass and shallow layer geothermal energy
It utilizes.
3. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, according to user demand region biomass and gas reserves, realizes that combined supply system input biomass and natural gas match
Flexible modulation.
4. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, produces 55 DEG C or so hot water using biogas thermal energy in the third heat exchanger, meet user's heat demand.
5. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, normal-temperature water is heated to 35-50 DEG C or so of middle warm water by the condenser, by the 4th heat exchanger further by middle warm water
It is heated to 55 DEG C of hot water, to meet user hot water demand.
6. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, the combustion gas turbine provides the first air compressor, the second air compressor, the first water pump, second in combined supply system
Water pump and compressor wasted work realize that above equipment operates normally.
7. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, biomass participates in gasification reaction with the air for being overpressurized, being preheated, together with vapor in the gasification furnace, which is
High-pressure gasified process.
8. the cold, heat and power triple supply system of biomass according to claim 1, natural gas and earth source heat pump coupling, feature
It is, the regenerator is passed through combustion air using the preheating of combustion gas turbine high-temperature smoke discharging, improves biogas, natural gas and sky
Gas combustibility.
9. the cold, heat and power triple supply system of biomass according to claim 3, natural gas and earth source heat pump coupling, feature
It is, by being adjusted to input combined supply system biomass and natural gas proportion, further adjusts raw in input gas mixer
Substance gas and natural gas ratio realize combined supply system cool and thermal power output of products production capacity and proportion.
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