CN105605827A - Complementary type distributed energy system integrating internal combustion engine tail gas into thermochemical process - Google Patents
Complementary type distributed energy system integrating internal combustion engine tail gas into thermochemical process Download PDFInfo
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- CN105605827A CN105605827A CN201510845896.8A CN201510845896A CN105605827A CN 105605827 A CN105605827 A CN 105605827A CN 201510845896 A CN201510845896 A CN 201510845896A CN 105605827 A CN105605827 A CN 105605827A
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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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- 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
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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
- 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
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Abstract
The invention provides a complementary type distributed energy system integrating internal combustion engine tail gas into the thermochemical process. The system comprises an internal combustion engine power generation subsystem, a thermochemistry waste heat utilization subsystem, an absorption refrigeration subsystem and a low-temperature exhaust waste heat utilization subsystem. According to the system, based on the energy utilization principle of parallel temperature and gradient utilization, exhaust waste heat recovery is conducted through thermochemical reaction, absorption refrigeration, heat supply and the like in sequence, high-temperature exhaust waste heat is utilized scientifically and reasonably in a gradient mode, heat, electric and cold diversified energy product output is achieved, and the energy utilization efficiency and grade of exhaust waste heat are improved greatly.
Description
Technical field
The present invention relates to energy utilization technology field, relate in particular to and utilize the integrated heat chemistry of exhaust gases of internal combustion enginesThe complementary type distributed energy resource system of process.
Background technology
Social economy's sustained and rapid development of China, demand for energy also thereupon year by year increase, coal,The fossil fuels such as oil and natural gas are consumed in a large number, have also caused serious environmental pollution, this simultaneouslyThe sustainable development of future economy society will be hindered. In addition because China is populous, per capita resources phaseTo scarcity, the energy, resource and environmental problem are particularly outstanding.
The total output of primary energy of China rises to 2013 from 13.5 hundred million tons of standard coals of 20003,400,000,000 tons of standard coals in year, a year primary energy consumption amount is also increased by 14.6 hundred million tons of standard coals of 2000Grow to 37.5 hundred million tons of standard coals of 2013. The wherein life of the clean energy resource such as water power, nuclear power and wind-powered electricity generationConsumption and production amount is 3.71 hundred million tons of standard coals and 3.68 hundred million tons of standard coals, only accounts for 10.91% of total amountWith 9.81%. China's economic since entering the new round rapid growth cycle, coal, electricity, the wet goods energyOccur shortage, socio-economic development is subject to the serious restriction of energy bottleneck, and Science in Future in China oil is to abroadResource is depended on the energy security problem producing with international energy market unpredictability unduly, in also givingAlarm bell has been beaten in the sustainable development of state's economic society.
For tackling the demand for energy of following rapid growth and problem of environmental pollution urgently to be resolved hurrily, need adoptExisting energy utilization technology is improved by advanced and perfect energy source use theory, to improve energySource utilization ratio also realizes the clean utilization of the energy. Fossil energy, living beings and solar energy relativelyAlthough huge etc. regenerative resource stock number, and utilize process clean environment firendly without CO2Deng pollutant emission,But have the characteristics such as Resource Density is lower, randomness is stronger, this is for the efficient utilization of regenerative resourceHigher challenge has been proposed. For problems, to utilize mode to serve as important with the complementation of fossil energyTechnological means, utilize fossil energy to utilize the stability of process to improve the usability of regenerative resourceCan, utilize regenerative resource Substitute For Partial fossil energy simultaneously, also reach the object of energy-saving and emission-reduction.By progressively promoting the shared share of regenerative resource, finally reach completely alternative to fossil energy,This technology path has a higher operability current, has also obtained the accreditation of all circles.
In daily life and industrial production, needed energy utilizes form not conventionally to be confined to electricityPower, also comprises heat energy and the cold energy of different temperatures, as various industrial steams, heating heat, lifeHot water and idle call are cold etc. Traditional energy system generally takes to concentrate a point mode of production of producing, for sending outElectric system, directly utilizes the heat discharging after combustion of fossil fuel to produce high temperature refrigerant conventionally,In order to drive power cycle acting, but wherein a big chunk heat is directly passed to low-temperature heat source notObtain efficient and rational utilization. For traditional heating system, although boiler is by most of fossil fuelChemical energy be converted into useful heat energy, and offer hot user, but the high-temperature flue gas that burning produces is straightConnect steam or hot water for heating lower temperature, acting capacity loss is very large. And aspect refrigeration,Power plant is the normal operation that meets electric drive air-conditioning in summer, needs to strengthen power generation amount, also causes thusGreat heat-energy losses.
According to can cascade utilization principle, according to conversion of energy step by step with dwindle between two-stage as far as possibleThe thinkings such as difference, with oil-electric engine group acting process and core, have built and have utilized high-temperature flue gas to driveMoving waste heat drives the distributing-supplying-energy system of absorption refrigeration process, changed traditional centralized per unit area yieldProduction of energy mode, the utilization ratio of the energy is also significantly enhanced. On the other hand, high-temperature flue gasAlthough the cooled circulation of waste heat is reclaimed, also substantially realize the counterpart utilization of energy grade, asWhat further improves the utilization ratio of fume afterheat and expands the application of fume afterheat, also will becomeThe important subject in energy source use field.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is to provide and utilizes the integrated heat chemistry mistake of exhaust gases of internal combustion enginesThe complementary type distributed energy resource system of journey, in realizing the output of thermoelectric cold multi-product, by thermalizationLearn the high efficiente callback utilization that the means such as reaction realize fume afterheat.
(2) technical scheme
According to an aspect of the present invention, provide and utilized the mutual of the integrated thermochemical process of exhaust gases of internal combustion enginesApotype distributed energy resource system, this system comprises: internal combustion engine power generation sub-system, heat chemistry UTILIZATION OF VESIDUAL HEAT INSubsystem, absorption refrigeration subsystem and low-temperature flue gas waste heat utilize subsystem, and wherein, internal combustion engine is sent outElectronic system; Described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, it is connected to described internal combustion engine power generation sub-system,Described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces,Utilize the waste heat of described high-temperature flue gas, generate gaseous fuel by heat absorbing type thermal chemical reaction; Described suctionReceipts formula refrigeration subsystem, it is connected to described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, this absorption refrigerationSystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, and utilizes described middle temperature flue gasWaste heat produce cryogenic cold energy; Described low-temperature flue gas waste heat utilizes subsystem, and it is connected to described absorptionFormula refrigeration subsystem, this low-temperature flue gas waste heat utilizes subsystem to receive described absorption refrigeration subsystem and producesRaw low-temperature flue gas, utilizes the waste heat of described low-temperature flue gas to produce heating hot water, domestic hot-water and industryWith steam, finally that low temperature waste gas is emptying.
Described internal combustion engine power generation sub-system, it comprises internal combustion engine 1 and generator 2, described internal combustion engine 1There is charging aperture, air inlet and exhanst gas outlet, the power output shaft of described internal combustion engine 1 and described generatingThe power power shaft of machine 2 connects, composition internal combustion engine generator group, and the exhanst gas outlet of internal combustion engine 1 is connected toHeat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem.
Described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem comprises: thermochemical reactor 3; Described thermal chemical reactionDevice 3 has smoke inlet, charging aperture, exhanst gas outlet and gaseous fuel outlet, described thermal chemical reactionThe smoke inlet of device 3 is connected to internal combustion engine power generation sub-system, the exhanst gas outlet of this thermochemical reactor 3Be connected to described absorption refrigeration subsystem.
Described absorption refrigeration subsystem, it comprises generator 4, absorber 5, evaporimeter 6, condensationDevice 7, the second circulating pump 14, first throttle valve 15, the second choke valve 16 and heat exchanger 17, circulationWater cooling tower 8 and the first circulating pump 9; Wherein, the smoke inlet of described generator 4 passes into heat chemistryThe middle temperature flue gas that UTILIZATION OF VESIDUAL HEAT IN subsystem produces, exhanst gas outlet is connected to low-temperature flue gas waste heat and utilizes subsystemSystem, the aqueous solution outlet of described generator 4 connects described first throttle valve 15, described first throttle valve15 outlet connects the aqueous solution entrance of described absorber 5, and the aqueous solution outlet of described absorber 5 connectsConnect described the second circulating pump 14, the outlet of described the second circulating pump 14 connects the water of described generator 4Solution entrance, connects between the outlet of described first throttle valve 15 and the outlet of described the second circulating pump 14Be connected to described heat exchanger 17; The water that the steam outlet of described generator 4 connects described condenser 7 steamsVapour entrance, the middle warm water outlet of described condenser 7 connects described the second choke valve 16, described second sectionThe outlet of stream valve 16 connects the middle warm water entrance of described evaporimeter 6, the water vapour of described evaporimeter 6Outlet connects the steam entry of described absorber 5; The delivery port of described circulating water cooling tower 8 connectsDescribed the first circulating pump 9, the outlet of described the first circulating pump 9 connects the cooling water of described condenser 7Entrance, the coolant outlet of described condenser 7 connects the cooling water inlet of described absorber 5, described inThe coolant outlet of absorber 5 connects the water inlet of described circulating water cooling tower 8; Described evaporimeter 6Chilled water outlet be connected with the chilled water entrance of fan coil 10, the refrigerant of described fan coil 10Water out connects the chilled water entrance of described evaporimeter 6.
Described low-temperature flue gas waste heat utilizes subsystem to comprise: low-temperature flue gas heat regenerator 12; Described low temperatureThe smoke inlet of flue gas heat recovery device 12 passes into the low-temperature flue gas that described absorption refrigeration subsystem produces,Its hot water outlet is connected with the hot water inlet of described fan coil 10, its jacket water entrance connecting teeThe first outlet of flow divider, its exhanst gas outlet connects chimney 13.
The charging aperture of described internal combustion engine 1 and air inlet pass into respectively fuel 24 and air 25, fuel 24Interior through burning pusher kinetic power output shaft rotation acting at described internal combustion engine 1 with air 25, power is defeatedShaft drives the power power shaft rotation of described generator 2, and rotating machinery merit is passed to described generatingMachine 2, rotating machinery merit is converted to electric energy output by described generator 2.
Described thermochemical reactor 3 receives the height that the internal combustion engine 1 of described internal combustion engine power generation sub-system is dischargedTemperature flue gas 21, its charging aperture passes into raw material 36, and described high-temperature flue gas 21 drives described thermal chemical reactionThe interior generation heat absorbing type of device 3 thermal chemical reaction, under the waste heat effect of described high-temperature flue gas 21, reaction is producedAngry fluid fuel, described high-temperature flue gas 21 temperature after heat absorbing type thermal chemical reaction reduces, and becomesMiddle temperature flue gas 22, and discharge from the exhanst gas outlet of described thermochemical reactor 3.
Described generator 4 receives the thermochemical reactor 3 of described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem and dischargesMiddle temperature flue gas 22, the working media aqueous solution in described generator 4 by warm flue gas 22 heat,Water is wherein vaporizated into steam, and working media concentration of aqueous solution raises, and enters described absorptionIn device 5; After above-mentioned vaporization, steam is entered in described condenser 7 by described generator 4, is condensed intoMiddle warm water, then enters described evaporimeter 6, and in described evaporimeter 6, rapid expansion is vaporizated into waterSteam, steam enters described absorber 5, is inhaled by the working media aqueous solution in described absorber 5Receive, the concentration of the working media aqueous solution reduces, and sends described generator 4 back to, completes absorption refrigerationCyclic process; Cooling water 30 in described circulating water cooling tower 8 enters described condenser 7, through withRaise from temperature after the steam heat exchange of described generator 4, return after entering described absorber 5Cooling and recycle in described circulating water cooling tower 8; The chilled water of described fan coil 10 entersIn described evaporimeter 6, the middle warm water in described evaporimeter 6 in the time that rapid expansion is vaporizated into steam,A large amount of heats that absorb chilled water, reduce the temperature of chilled water, after cold energy 34 reduces with temperatureChilled water is carrier, is back in described fan coil 10, at described blower fan by described evaporimeter 6Coil pipe 10 carries out heat exchange with room air, thereby reduces Indoor environment temperature; Described middle temperature cigaretteGas 22 temperature after described absorption refrigeration subsystem reduces, and becomes low-temperature flue gas 23, by describedThe exhanst gas outlet of generator 4 is discharged; The working media aqueous solution flowing out through described first throttle valve 15The working media aqueous solution pumping with described the second circulating pump 14 carries out heat friendship by described heat exchanger 17Change, improve the temperature of the working media aqueous solution of sending described generator 4 back to.
Described low-temperature flue gas heat regenerator 12 passes into low temperature cigarette by its smoke inlet and cold water inlet respectivelyGas 23 and cold water 27, and utilize the waste heat of described low-temperature flue gas 23 that the cold water of input 27 is heated,Deliver in described fan coil 10 as heating hot water, for building provides heating heat energy 33, simultaneouslySeparate a part of heating hot water as domestic hot-water 31; A part of cylinder that jacket water heat exchanger 11 is dischargedCover water enters in described low-temperature flue gas heat regenerator 12, and described low-temperature flue gas heat regenerator 12 utilizes instituteThe waste heat of stating low-temperature flue gas 23 carries out post bake to jacket water, produces industrial steam 28, anotherPart jacket water delivers in described fan coil 10, discharges with described low-temperature flue gas heat regenerator 12Heating hot water provides heating heat energy 33 for building together, separates a part of heating hot water as life simultaneouslyHot water 31 alive; Described low-temperature flue gas 23 temperature after described low-temperature flue gas heat regenerator 12 reduces,Become low temperature waste gas 29, low temperature waste gas 29 is delivered to described chimney by described low-temperature flue gas heat regenerator 1213 is emptying.
(3) beneficial effect
Can find out from technique scheme, the present invention has following beneficial effect:
(1) make full use of internal combustion engine generator group discharge compared with low-grade flue gas waste heat, by driving firstThe heat absorbing type thermal chemical reactions such as alcohol, ethanol or dimethyl ether cracking, produce H2Synthetic with the high-quality such as COGas fuel, can significantly promote the grade of efficiency of energy utilization and the fume afterheat of fume afterheat;
(2) fuel such as methyl alcohol, ethanol or dimethyl ether that participates in thermal chemical reaction can be used as biomass energyWith the carrier of the renewable and clean energy resources such as solar energy, finally realize fossil energy and clean reproducible energyComplementation utilization, reach and reduce fossil energy and utilize the object of share;
(3) the using energy source principle based on " temperature counterpart, cascade utilization ", successively by thermalizationThe modes such as reaction, absorption refrigeration and heating of learning are carried out flue gas waste heat recovery, scientifically and rationally ladderLevel is utilized high-temperature flue gas waste heat, has realized heat, electricity, the output of cold diversification energy products;
(4) make full use of the internal combustion engine generation technology of existing maturation, utilize skill with advanced heat chemistryArt is coupled, and can reduce the technical risk of system, can accelerate to advance the product of this technology simultaneouslyIndustryization application.
Brief description of the drawings
Fig. 1 is the complementary type of utilizing the integrated thermochemical process of exhaust gases of internal combustion engines according to the embodiment of the present inventionDistributed energy resource system structural representation.
Internal combustion engine power generation sub-system:
1-internal combustion engine; 2-generator
Heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem:
3-thermochemical reactor
Absorption refrigeration subsystem:
4-generator; 5-absorber; 6-evaporimeter; 7-condenser; 8-circulating water cooling tower; 9-firstCirculating pump; 13-chimney; 14-the second circulating pump; 15-first throttle valve; 16-the second choke valve; 17-Heat exchanger
Low-temperature flue gas waste heat utilizes subsystem:
12-low-temperature flue gas heat regenerator
10-fan coil; 11-jacket water heat exchanger; 21-high-temperature flue gas; Warm flue gas in 22-; 23-is lowTemperature flue gas; 24-fuel; 25-air; 26-jacket-cooling water; 27-cold water; The industrial steam of 28-;29-low temperature waste gas; 30-cooling water; 31-domestic hot-water; 32-heating backwater; 33-heating heat energy; 34-Cold energy; 35-gaseous fuel; 36-raw material.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with concrete realityExecute example, and with reference to accompanying drawing, the present invention is described in more detail.
The complementary type distributed energy that utilizes the integrated thermochemical process of exhaust gases of internal combustion engines provided by the inventionSystem, utilizes the high-temperature flue gas waste heat of internal combustion engine generator group discharge to drive heat absorbing type chemical reaction process,Utilize the middle temperature fume afterheat that heat absorbing type chemical reaction process is discharged to drive Absorption Cooling System, and profitThe low-temperature flue gas waste heat generating by Absorption Cooling System generates heating heat energy, domestic hot-water and industrialSteam, realizes the high efficiente callback utilization of fume afterheat.
Fig. 1 is the complementary type of utilizing the integrated thermochemical process of exhaust gases of internal combustion engines according to the embodiment of the present inventionDistributed energy resource system, this system comprise internal combustion engine power generation sub-system, heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem,Absorption refrigeration subsystem and low-temperature flue gas waste heat utilize subsystem. Wherein, dotted line represents cool cyclesPipeline, single-point line represents air conditioner refrigerating pipeline, double dot dash line represents absorption refrigeration cycle pipeline.
Heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, it is connected to described internal combustion engine power generation sub-system, this heat chemistryUTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces, and utilizes above-mentioned heightThe waste heat of temperature flue gas, generates gaseous fuel by heat absorbing type thermal chemical reaction;
Absorption refrigeration subsystem, it is connected to described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, and this is absorptionRefrigeration subsystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, utilize above-mentioned inThe waste heat of temperature flue gas produces cryogenic cold energy;
Low-temperature flue gas waste heat utilizes subsystem, and it is connected to described absorption refrigeration subsystem, this low temperatureFume afterheat utilizes subsystem to receive the low-temperature flue gas that described absorption refrigeration subsystem produces, in utilizationState the waste heat of low-temperature flue gas and produce heating hot water, domestic hot-water and industrial steam, low temperature waste gas is arrangedEmpty.
Distributed to the complementary type of utilizing the integrated thermochemical process of exhaust gases of internal combustion engines of the present embodiment belowEach part of energy resource system is elaborated, the present embodiment utilize exhaust gases of internal combustion engines integratedThe related capital equipment of complementary type distributed energy resource system of thermochemical process comprises internal combustion engine 1, sends outMotor 2, thermochemical reactor 3, generator 4, absorber 5, evaporimeter 6, condenser 7, followRing water cooling tower 8, the first circulating pump 9, fan coil 10, jacket water heat exchanger 11, low-temperature flue gasHeat regenerator 12, chimney 13, the second circulating pump 14, first throttle valve 15, the second choke valve 16With heat exchanger 17.
Internal combustion engine power generation sub-system comprises internal combustion engine 1 and generator 2, internal combustion engine 1 have charging aperture,Air inlet and exhanst gas outlet, the power output shaft of internal combustion engine 1 is connected with the power power shaft of generator 2,Composition internal combustion engine generator group.
Heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem comprises thermochemical reactor 3, and thermochemical reactor 3 has cigaretteGas entrance, charging aperture, exhanst gas outlet and gaseous fuel outlet, the smoke inlet of thermochemical reactor 3Be connected with the exhanst gas outlet of internal combustion engine 1.
Absorption refrigeration subsystem comprises generator 4, absorber 5, evaporimeter 6, condenser 7,Two circulating pumps 14, first throttle valve 15, the second choke valve 16 and heat exchanger 17, circulating water cooling tower8 and first circulating pump 9.
Wherein, the smoke inlet of generator 4 is connected with the exhanst gas outlet of thermochemical reactor 3, occursThe aqueous solution outlet of device 4 connects first throttle valve 15, and the outlet of first throttle valve 15 connects absorber5 aqueous solution entrance, the aqueous solution outlet of absorber 5 connects the second circulating pump 14, the second circulating pumps14 outlet connects the aqueous solution entrance of generator 4, the outlet of first throttle valve 15 and the second circulationBetween the outlet of pump 14, be connected with heat exchanger 17.
The steam outlet of generator 4 connects the steam entry of condenser 7, the middle temperature of condenser 7Water out connects the middle warm water of the outlet connection evaporimeter 6 of the second choke valve 16, the second choke valves 16Entrance, the steam outlet of evaporimeter 6 connects the steam entry of absorber 5.
The outlet that the delivery port of circulating water cooling tower 8 connects the first circulating pump 9, the first circulating pumps 9 connectsConnect the cooling water inlet of condenser 7, the coolant outlet of condenser 7 connects the cooling water of absorber 5Entrance, the coolant outlet of absorber 5 connects the water inlet of circulating water cooling tower 8.
The chilled water outlet of evaporimeter 6 is connected with the chilled water entrance of fan coil 10, fan coil10 chilled water outlet connects the chilled water entrance of evaporimeter 6.
Low-temperature flue gas waste heat utilizes subsystem to comprise low-temperature flue gas heat regenerator 12. Low-temperature flue gas recuperation of heatThe smoke inlet of device 12 is connected with the exhanst gas outlet of generator 4, its hot water outlet and fan coil 10Hot water inlet connect, its jacket water entrance connecting tee flow divider first outlet, its exhanst gas outletConnect chimney 13.
The charging aperture of internal combustion engine 1 and air inlet pass into respectively fuel 24 and air 25, fuel 24 and skyGas 25 mixes, burns in the cylinder of internal combustion engine 1, and the heat energy discharging makes generation high temperature in cylinderHigh-pressure gas, promotes power output shaft rotation acting, and power output shaft drives the power of generator 2 defeatedEnter axle rotation, rotating machinery merit is passed to generator 2, generator 2 is converted to rotating machinery meritElectric energy output. In the process that fuel 24 and air 25 burn, can produce high-temperature flue gas 21, internal combustion engine1 discharges high-temperature flue gas 21 by exhanst gas outlet.
Wherein, the temperature of high-temperature flue gas 21 is 400-500 DEG C.
Thermochemical reactor 3 receives the high-temperature flue gas 21 that internal combustion engine 1 is discharged, and high-temperature flue gas 21 drivesThe interior generation heat absorbing type of thermochemical reactor 3 thermal chemical reaction, heat absorbing type thermal chemical reaction be for example methyl alcohol,The cracking reaction such as ethanol or dimethyl ether. The raw materials 36 such as methyl alcohol, ethanol or dimethyl ether enter by charging apertureEnter thermochemical reactor 3, under the effect of above-mentioned high-temperature flue gas waste heat, produce gaseous fuel 35, as closeBecome gas H2And CO, and export output by gaseous fuel. Above-mentioned high-temperature flue gas 21 is through heat absorbing typeAfter thermal chemical reaction, temperature reduces, and becomes middle temperature flue gas 22, and goes out from the flue gas of thermochemical reactor 3Mouth is discharged.
Wherein, the temperature of middle temperature flue gas 22 is 250-400 DEG C.
This system is by heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem Mist heat recovering and produce H2With CO etc.High-quality synthesis gas fuel, can be in addition high by the advanced circulatory system such as Brayton cycle or fuel cellEffect is utilized, and can significantly promote the efficiency of energy utilization of fume afterheat.
Generator 4 receives the middle temperature flue gas 22 that thermochemical reactor 3 is discharged, working medium water whereinIn solution quilt, warm flue gas 22 heats, and the water in the working media aqueous solution is constantly vaporizated into steam,Along with the continuous vaporization of water, the concentration of the interior working media aqueous solution of generator 4 constantly raises, by occurringThe aqueous solution outlet of device 4 is discharged, and via first throttle valve 15, is entered by the aqueous solution entrance of absorber 5Enter in absorber 5;
After above-mentioned vaporization, steam is discharged by the steam outlet of generator 4, is steamed by the water of condenser 7Vapour entrance enters in condenser 7, carries out heat exchange with the cooling water in condenser 7, and device 7 is condensedIn cooling water temperature, be condensed into middle warm water, the middle warm water in condenser 7 is discharged by the outlet of middle warm water,Through the second choke valve 16, enter evaporimeter 6 by the middle warm water entrance of evaporimeter 6, in evaporimeter 6Rapid expansion and be again vaporizated into steam, steam is discharged by the steam outlet of evaporimeter 6,Enter absorber 5 by the steam entry of absorber 5, be absorbed the working media aqueous solution in device 5Absorb, the concentration of the working media aqueous solution progressively reduces, discharged by the aqueous solution outlet of absorber 5,Via the second circulating pump 14, send generator 4 back to by the aqueous solution entrance of generator 4, complete whole suctionReceipts formula kind of refrigeration cycle process.
Due to the working media aqueous solution cooling through to a certain degree in absorber 5, temperature is lower,In order to save the heat of heating work WATER AS FLOW MEDIUM solution, improve the efficiency of whole circulation, at generator 4-Between the outlet of the first throttle valve 15 of absorber 5 closed circuits and the outlet of the second circulating pump 14, addFill a heat exchanger 17, make the working media aqueous solution and second circulation of flowing out through first throttle valve 15The working media aqueous solution that pump 14 pumps carries out heat exchange by heat exchanger 17, sends out thereby improve to send back toThe temperature of the working media aqueous solution of raw device 4.
Cooling water 30 in circulating water cooling tower 8 is discharged by delivery port, through the first circulating pump 9, by coldThe cooling water inlet of condenser 7 enters condenser 7, as condenser 7 in Absorption Cooling System processRequired condensed water, through with steam heat exchange from generator 4 after temperature raise, by condensationThe coolant outlet of device 7 is discharged, and enters absorber 5, absorber by the cooling water inlet of absorber 55 coolant outlet returns cooling in circulating water cooling tower 8 and recycles after cooling water is discharged.
The chilled water of fan coil 10 is discharged and is entered evaporimeter 6 by its chilled water outlet, by evaporimeter 6Chilled water entrance enter in evaporimeter 6, the middle warm water in evaporimeter 6 in rapid expansion and again byWhile being vaporizated into steam, can absorb in a large number the heats of chilled waters, the temperature of chilled water be reduced, cold energy34 chilled waters after reducing taking temperature, as carrier, are discharged by the chilled water outlet of evaporimeter 6, by blower fanThe chilled water entrance of coil pipe 10 is back in fan coil 10, at fan coil 10 and room airCarry out heat exchange, thereby reduce Indoor environment temperature.
Middle temperature flue gas 22 temperature after absorption refrigeration subsystem reduces, and becomes low-temperature flue gas, sends outThe exhanst gas outlet of raw device 4 is discharged low-temperature flue gas.
Wherein, the temperature of low-temperature flue gas is below 200 DEG C, and working media can adopt lithium bromide or ammoniaWater.
Low-temperature flue gas heat regenerator 12 passes into low-temperature flue gas 23 by its smoke inlet and cold water inlet respectivelyWith cold water 27, low-temperature flue gas heat regenerator 12 utilizes low-temperature flue gas waste heat that the cold water of input 27 is heated,Deliver in fan coil 10 as heating hot water, for building provides heating heat energy 33, also can simultaneouslySeparate a part of heating hot water as domestic hot-water 31.
Jacket water heat exchanger 11 is sent jacket-cooling water 26 into internal combustion engine 1, in jacket-cooling water 26 warpsThe all parts of combustion machine 1 internal pipeline combustion motor 1 carries out cooling rear temperature and raises, after temperature raisesJacket water enter the entrance of three-way flow divider valve, a part of cylinder sleeve after being discharged by jacket water heat exchanger 11Water is entered in low-temperature flue gas heat regenerator 12 by the first outlet of three-way flow divider valve, and low-temperature flue gas heat is returnedReceive device 12 and utilize low-temperature flue gas waste heat to carry out post bake to jacket water, produce industrial steam 28.Another part jacket water is discharged and is delivered in fan coil 10 by the second outlet of three-way flow divider valve, withThe heating hot water that low-temperature flue gas heat regenerator 12 is discharged provides heating heat energy 33 for building together, withTime also separable a part of heating hot water as domestic hot-water 31.
Low-temperature flue gas temperature after low-temperature flue gas heat regenerator 12 reduces, and becomes low temperature waste gas 29,Low-temperature flue gas heat regenerator 12 is discharged low temperature waste gas 29, and delivers to chimney 13, and chimney 13 is by lowTemperature waste gas 29 is emptying.
Wherein, the temperature of low temperature waste gas 29 is below 90 DEG C.
In such scheme, what make full use of the discharge of internal combustion engine generator group drives first compared with low-grade flue gas waste heatThe heat absorbing type thermal chemical reactions such as alcohol, ethanol or dimethyl ether cracking, complete the recycling of fume afterheat,And realize the conversion of heat energy form of energy and the lifting of the grade of fume afterheat by thermal chemical reaction. This isSystem, according to heat energy grade difference, adopts heat absorbing type thermal chemical reaction, absorption refrigeration thermodynamic cycle successivelyCarry out flue gas waste heat recovery with the mode that generates heating hot water, industrial steam, by scientifically and rationallyCascade utilization high-temperature flue gas waste heat is realized the output of diversification energy products,
It should be noted that, the present embodiment system is exhaust gas temperature and the heat absorbing type that adapts to different internal combustion enginesThe heat energy temperature that thermal chemical reaction is required, can adjust flexibly in flow process heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem andThe sequencing that absorption refrigeration subsystem utilizes fume afterheat.
In addition, this system is as multi-energy complementation type system, participate in heat absorbing type thermal chemical reaction methyl alcohol,The fuel such as ethanol or dimethyl ether can be used as the carrier of the renewable and clean energy resource such as biomass energy and solar energy,Finally realize the complementation utilization of fossil energy and clean reproducible energy, reach and reduce fossil energy utilizationThe object of share.
It should be noted that, in accompanying drawing or description text, the implementation that does not illustrate or describe,Under being, form known to a person of ordinary skill in the art in technical field, is not elaborated. In addition,The above-mentioned definition to each element is not limited in various concrete structures, the shape in embodiment, mentioned, thisField those of ordinary skill can be changed simply or replace it, for example:
(1) for adapting to exhaust gas temperature and the required heat energy of heat absorbing type thermal chemical reaction of different internal combustion enginesTemperature, can utilize heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem and absorption refrigeration subsystem to fume afterheatSequencing exchanges;
(2) working media can adopt lithium bromide or ammoniacal liquor;
(3) can provide herein the demonstration of the parameter that comprises particular value, but these parameters are without definite etc.In corresponding value, but can in acceptable error margin or design constraint, be similar to analog value;
(4) the direction term of mentioning in embodiment, for example " on ", D score, 'fornt', 'back', " left side "," right side " etc., is only the direction with reference to accompanying drawing, is not used for limiting the scope of the invention;
(5) above-described embodiment can be based on design and the consideration of reliability, being mixed with each other collocation use orUse with other embodiment mix and match, the technical characterictic in different embodiment can independent assortment shapeBecome more embodiment.
In sum, the complementary type of utilizing the integrated thermochemical process of exhaust gases of internal combustion engines provided by the invention is dividedCloth formula energy resource system, can significantly promote the grade of efficiency of energy utilization and the fume afterheat of fume afterheat,Cascade utilization high-temperature flue gas waste heat scientifically and rationally, has realized heat, electricity, cold diversification energy products are defeatedGo out.
Above-described specific embodiment, carries out object of the present invention, technical scheme and beneficial effectFurther description, institute it should be understood that the foregoing is only specific embodiments of the invention and, be not limited to the present invention, within the spirit and principles in the present invention all, any repairing of doingProtection scope of the present invention changes, be equal to replacement, improvement etc., within all should be included in.
Claims (9)
1. utilize the complementary type distributed energy resource system of the integrated thermochemical process of exhaust gases of internal combustion engines, its spyLevy and be, this system comprises: internal combustion engine power generation sub-system, heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, absorptionFormula refrigeration subsystem and low-temperature flue gas waste heat utilize subsystem, wherein,
Internal combustion engine power generation sub-system;
Described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, it is connected to described internal combustion engine power generation sub-system, described inHeat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces, and utilizesThe waste heat of described high-temperature flue gas, generates gaseous fuel by heat absorbing type thermal chemical reaction;
Described absorption refrigeration subsystem, it is connected to described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem, this suctionReceipts formula refrigeration subsystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, and utilizes instituteThe waste heat of stating middle temperature flue gas produces cryogenic cold energy;
Described low-temperature flue gas waste heat utilizes subsystem, and it is connected to described absorption refrigeration subsystem, shouldLow-temperature flue gas waste heat utilizes subsystem to receive the low-temperature flue gas that described absorption refrigeration subsystem produces, profitWith waste heat production heating hot water, domestic hot-water and the industrial steam of described low-temperature flue gas, finally by lowTemperature exhaust gas evacuation.
2. complementary type distributed energy resource system according to claim 1, is characterized in that,
Described internal combustion engine power generation sub-system, it comprises internal combustion engine (1) and generator (2), described inCombustion machine (1) has charging aperture, air inlet and exhanst gas outlet, the power stage of described internal combustion engine (1)Axle is connected with the power power shaft of described generator (2), composition internal combustion engine generator group, internal combustion engine (1)Exhanst gas outlet be connected to heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem.
3. complementary type distributed energy resource system according to claim 1, is characterized in that, instituteStating heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem comprises: thermochemical reactor (3);
Described thermochemical reactor (3) has smoke inlet, charging aperture, exhanst gas outlet and gas combustionMaterial outlet, the smoke inlet of described thermochemical reactor (3) is connected to internal combustion engine power generation sub-system,The exhanst gas outlet of this thermochemical reactor (3) is connected to described absorption refrigeration subsystem.
4. complementary type distributed energy resource system according to claim 1, is characterized in that,
Described absorption refrigeration subsystem, it comprise generator (4), absorber (5), evaporimeter (6),Condenser (7), the second circulating pump (14), first throttle valve (15), the second choke valve (16),Heat exchanger (17), circulating water cooling tower (8) and the first circulating pump (9);
Wherein, the smoke inlet of described generator (4) passes into the generation of heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystemMiddle temperature flue gas, exhanst gas outlet is connected to low-temperature flue gas waste heat and utilizes subsystem, described generator (4)Aqueous solution outlet connect described first throttle valve (15), the outlet of described first throttle valve (15)Connect the aqueous solution entrance of described absorber (5), the aqueous solution outlet of described absorber (5) connectsDescribed the second circulating pump (14), the outlet of described the second circulating pump (14) connects described generator (4)Aqueous solution entrance, the outlet of described first throttle valve (15) and described the second circulating pump (14)Between outlet, be connected with described heat exchanger (17);
The steam outlet of described generator (4) connects the steam entry of described condenser (7),The middle warm water outlet of described condenser (7) connects described the second choke valve (16), described the second throttlingThe outlet of valve (16) connects the middle warm water entrance of described evaporimeter (6), described evaporimeter (6)Steam outlet connects the steam entry of described absorber (5);
The delivery port of described circulating water cooling tower (8) connects described the first circulating pump (9), and describedThe outlet of one circulating pump (9) connects the cooling water inlet of described condenser (7), described condenser (7)Coolant outlet connect the cooling water inlet of described absorber (5), described absorber (5) coldBut water out connects the water inlet of described circulating water cooling tower (8);
The chilled water outlet of described evaporimeter (6) is connected with the chilled water entrance of fan coil (10),The chilled water outlet of described fan coil (10) connects the chilled water entrance of described evaporimeter (6).
5. complementary type distributed energy resource system according to claim 1, is characterized in that, instituteStating low-temperature flue gas waste heat utilizes subsystem to comprise: low-temperature flue gas heat regenerator (12);
The smoke inlet of described low-temperature flue gas heat regenerator (12) passes into described absorption refrigeration subsystemThe low-temperature flue gas producing, its hot water outlet is connected with the hot water inlet of described fan coil (10), itsThe first outlet of jacket water entrance connecting tee flow divider, its exhanst gas outlet connects chimney (13).
6. complementary type distributed energy resource system according to claim 2, is characterized in that,
The charging aperture of described internal combustion engine (1) and air inlet pass into respectively fuel (24) and air (25),Fuel (24) and air (25) in described internal combustion engine (1) through burning pusher kinetic power output shaftRotation acting, power output shaft drives the power power shaft rotation of described generator (2), will rotateMechanical power is passed to described generator (2), and rotating machinery merit is converted to electricity by described generator (2)Can output.
7. complementary type distributed energy resource system according to claim 3, is characterized in that,
Described thermochemical reactor (3) receives internal combustion engine (1) row of described internal combustion engine power generation sub-systemThe high-temperature flue gas (21) going out, its charging aperture passes into raw material (36), and described high-temperature flue gas (21) drivesIn described thermochemical reactor (3), there is heat absorbing type thermal chemical reaction, in described high-temperature flue gas (21)Waste heat effect under generated reactive gas fuel, described high-temperature flue gas (21) is through heat absorbing type heat chemistryAfter reaction, temperature reduces, and becomes middle temperature flue gas (22), and from the cigarette of described thermochemical reactor (3)Gas outlet is discharged.
8. complementary type distributed energy resource system according to claim 4, is characterized in that,
Described generator (4) receives the thermochemical reactor (3) of described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystemThe middle temperature flue gas (22) of discharging, warm flue gas in the working media aqueous solution quilt in described generator (4)(22) heating, water is wherein vaporizated into steam, and working media concentration of aqueous solution raises, and goes forward side by sideEnter in described absorber (5);
After above-mentioned vaporization, steam is entered in described condenser (7) by described generator (4), condensesFor middle warm water, then enter described evaporimeter (6), rapid expansion quilt in described evaporimeter (6)Be vaporizated into steam, steam enters described absorber (5), by the work in described absorber (5)Make WATER AS FLOW MEDIUM solution and absorb, the concentration of the working media aqueous solution reduces, and sends described generator (4) back to,Complete Absorption Cooling System process;
Cooling water (30) in described circulating water cooling tower (8) enters described condenser (7), warpCross with steam heat exchange from described generator (4) after temperature raise, enter described absorber(5) after, return cooling in described circulating water cooling tower (8) and recycle;
The chilled water of described fan coil (10) enters in described evaporimeter (6), described evaporimeter(6) the middle warm water in, in the time that rapid expansion is vaporizated into steam, absorbs the heat of chilled water in a large number,The temperature of chilled water is reduced, and the chilled water after cold energy (34) reduces taking temperature is as carrier, by describedEvaporimeter (6) is back in described fan coil (10), in described fan coil (10) and chamberInterior air carries out heat exchange, reduces Indoor environment temperature;
Described middle temperature flue gas (22) temperature after described absorption refrigeration subsystem reduces, and becomes lowTemperature flue gas (23), is discharged by the exhanst gas outlet of described generator (4);
The working media aqueous solution and described the second circulating pump (14) that flow out through described first throttle valve (15)The working media aqueous solution pumping carries out heat exchange by described heat exchanger (17), described in raising is sent back toThe temperature of the working media aqueous solution of generator (4).
9. complementary type distributed energy resource system according to claim 5, is characterized in that,
Described low-temperature flue gas heat regenerator (12) passes into low temperature by its smoke inlet and cold water inlet respectivelyFlue gas (23) and cold water (27), and utilize the waste heat of described low-temperature flue gas (23) cold by what inputWater (27) heating, delivers in described fan coil (10), for building provides as heating hot waterHeating heat energy (33), and separate a part of heating hot water as domestic hot-water (31);
A part of jacket water that jacket water heat exchanger (11) is discharged enters described low-temperature flue gas heat regenerator(12), in, described low-temperature flue gas heat regenerator (12) utilizes the waste heat of described low-temperature flue gas (23)Jacket water is carried out to post bake, produce industrial steam (28), another part jacket water is delivered to instituteState in fan coil (10), with the heating hot water one of described low-temperature flue gas heat regenerator (12) dischargeRise as building provides heating heat energy (33), and separate a part of heating hot water as domestic hot-water (31);
Described low-temperature flue gas (23) temperature after described low-temperature flue gas heat regenerator (12) reduces,Become low temperature waste gas (29), described low-temperature flue gas heat regenerator (12) send low temperature waste gas (29)Emptying to described chimney (13).
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