CN205227916U - Utilize integrated thermochemical process's of internal -combustion engine tail gas complementary type distributed energy system - Google Patents
Utilize integrated thermochemical process's of internal -combustion engine tail gas complementary type distributed energy system Download PDFInfo
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- CN205227916U CN205227916U CN201520956866.XU CN201520956866U CN205227916U CN 205227916 U CN205227916 U CN 205227916U CN 201520956866 U CN201520956866 U CN 201520956866U CN 205227916 U CN205227916 U CN 205227916U
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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
Abstract
The utility model provides an utilize integrated thermochemical process's of internal -combustion engine tail gas complementary type distributed energy system, this system include interior gas turbine power generation subsystem, heat chemistry waste heat utilization subsystem, absorbed refrigeration subsystem and low temperature flue gas waste heat utilization subsystem, the utility model discloses based on the energy utilization principle of " the temperature is geared to the needs of the job, cascade utilization ", residual heat from flue gas is carried out to the modes such as hot chemical reaction, absorbed refrigeration and heating heat supply that loop through, and heat, electricity, cold pluralism energy products output have been realized to scientific and reasonable ground cascade utilization high temperature flue gas waste heat, promote the energy utilization efficiency of flue gas waste heat and the grade of flue gas waste heat by a wide margin.
Description
Technical field
The utility model relates to technical field of energy utilization, particularly relates to the complementary type distributed energy resource system utilizing the integrated thermochemical process of exhaust gases of internal combustion engines.
Background technology
Social economy's sustained and rapid development of China, demand for energy also increases thereupon year by year, is consumed in a large number at the fossil fuel such as coal, oil and natural gas, also result in serious environmental pollution simultaneously, and this will hinder the sustainable development of future economy society.In addition because China is populous, per capita resources is relatively deficient, and the energy, resource and environmental problem are particularly outstanding.
The total output of primary energy of China rises to 3,400,000,000 tons of standard coals of 2013 from 13.5 hundred million tons of standard coals of 2000, year primary energy consumption amount also risen to 37.5 hundred million tons of standard coals of 2013 by 14.6 hundred million tons of standard coals of 2000.Wherein the output of the clean energy resource such as water power, nuclear power and wind-powered electricity generation and consumption are 3.71 hundred million tons of standard coals and 3.68 hundred million tons of standard coals, only account for 10.91% and 9.81% of total amount.China's economic is since entering a new round quick growth cycle, there is shortage in coal, electricity, the wet goods energy, socio-economic development is subject to the serious restriction of energy bottleneck, the energy security problem that Science in Future in China oil is depended on unduly overseas source and international energy market unpredictability produces, has beaten alarm bell also to the sustainable development of China's economic society.
For tackling the demand for energy of following rapid growth and problem of environmental pollution urgently to be resolved hurrily, need adopt that advanced and perfect energy source use is theoretical to be improved existing energy utilization technology, to improve efficiency of energy utilization and to realize the clean utilization of the energy.Relative fossil energy, although the regenerative resource such as living beings and solar energy stock number is huge, and utilizes process cleans environmental protection without CO
2deng pollutant emission, but there is the characteristics such as Resource Density is lower, randomness is stronger, this efficiency utilization for regenerative resource proposes higher challenge.For problems, with the complementary Land use systems of fossil energy using as important technological means, utilize fossil energy to utilize the stability of process to improve the utility of regenerative resource, utilize regenerative resource Substitute For Partial fossil energy simultaneously, also reach the object of energy-saving and emission-reduction.By progressively promoting the share shared by regenerative resource, what finally reach fossil energy is completely alternative, and this technology path has higher operability current, have also been obtained the accreditation of all circles.
In daily life and industrial production, required Energy harvesting form is not confined to electric power usually, also comprises heat energy and the cold energy of different temperatures, as cold in various industrial steam, heating heat, domestic hot-water and idle call etc.Traditional energy system is generally taked to concentrate a point mode of production of producing, for electricity generation system, usually the heat discharged after directly utilizing combustion of fossil fuel is to produce high temperature refrigerant, in order to drive power cycle to do work, but wherein greatly heat be directly passed to low-temperature heat source and do not obtain efficient and rational utilization.For traditional heating system, although the chemical energy of most of fossil fuel is useful heat energy by boiler, and be supplied to heat user, the high-temperature flue gas that burning produces directly is used for heating the steam of lower temperature or hot water, and acting capacity loss is very large.And in refrigeration, power plant is the normal operation meeting electric drive air-conditioning in summer, need power generation amount be strengthened, also result in great heat-energy losses thus.
According to the cascade utilization principle of energy, according to conversion of energy step by step with reduce the thinkings such as difference between two-stage as far as possible, within fuel engine power generation unit acting process and core, construct and utilize high-temperature flue gas to drive waste heat to drive the distributing-supplying-energy system of absorption refrigeration process, change the production of energy mode of traditional centralized per unit area yield, the utilization ratio of the energy have also been obtained and significantly promotes.On the other hand, although the cooled circulation of high-temperature flue gas waste heat is reclaimed, also the counterpart substantially achieving energy grade utilizes, but how to improve the utilization ratio of fume afterheat further and expand the application of fume afterheat, also will become the 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 utility model is to provide the complementary type distributed energy resource system utilizing the integrated thermochemical process of exhaust gases of internal combustion engines, while realizing the output of thermoelectric cold multi-product, the high efficiente callback being realized fume afterheat by means such as thermal chemical reactions is utilized.
(2) technical scheme
According to an aspect of the present utility model, provide the complementary type distributed energy resource system utilizing the integrated thermochemical process of exhaust gases of internal combustion engines, this system comprises: 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, 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 heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces, and utilizes the 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, and this absorption refrigeration subsystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, and utilizes the waste heat of described middle temperature flue gas to produce cryogenic cold energy; Described low-temperature flue gas waste heat utilizes subsystem, it is connected to described absorption refrigeration subsystem, this low-temperature flue gas waste heat utilizes subsystem to receive the low-temperature flue gas of described absorption refrigeration subsystem generation, the waste heat of described low-temperature flue gas is utilized to produce heating hot water, domestic hot-water and industrial 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 1 has charging aperture, air inlet and exhanst gas outlet, the power output shaft of described internal combustion engine 1 is connected with the power power shaft of described generator 2, composition internal combustion engine generator group, the exhanst gas outlet of internal combustion engine 1 is connected to heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem.
Described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem comprises: thermochemical reactor 3; Described thermochemical reactor 3 has the outlet of smoke inlet, charging aperture, exhanst gas outlet and gaseous fuel, the smoke inlet of described thermochemical reactor 3 is connected to internal combustion engine power generation sub-system, and the exhanst gas outlet of this thermochemical reactor 3 is connected to described absorption refrigeration subsystem.
Described absorption refrigeration subsystem, it comprises generator 4, absorber 5, evaporimeter 6, condenser 7, second circulating pump 14, first throttle valve 15, second throttle 16 and 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 middle temperature flue gas of heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem generation, exhanst gas outlet is connected to low-temperature flue gas waste heat and utilizes subsystem, the aqueous solution outlet of described generator 4 connects described first throttle valve 15, the outlet of described first throttle valve 15 connects the aqueous solution entrance of described absorber 5, the aqueous solution outlet of described absorber 5 connects described second circulating pump 14, the outlet of described second circulating pump 14 connects the aqueous solution entrance of described generator 4, described heat exchanger 17 is connected with between the outlet of described first throttle valve 15 and the outlet of described second circulating pump 14, 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 second throttle 16, the outlet of described second throttle 16 connects the middle warm water entrance of described evaporimeter 6, and the steam outlet of described evaporimeter 6 connects the steam entry of described absorber 5, the delivery port of described circulating water cooling tower 8 connects described first circulating pump 9, the outlet of described first circulating pump 9 connects the cooling water inlet of described condenser 7, the coolant outlet of described condenser 7 connects the cooling water inlet of described absorber 5, and the coolant outlet of described absorber 5 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, and the chilled water outlet of described fan coil 10 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; The smoke inlet of described low-temperature flue gas heat regenerator 12 passes into the low-temperature flue gas of described absorption refrigeration subsystem generation, its hot water outlet is connected with the hot water inlet of described fan coil 10, first outlet of its jacket water entrance connecting tee flow divider, its exhanst gas outlet connects chimney 13.
The charging aperture of described internal combustion engine 1 and air inlet pass into fuel 24 and air 25 respectively, fuel 24 and air 25 rotate acting through burning pusher kinetic power output shaft in described internal combustion engine 1, power output shaft drives the power power shaft of described generator 2 to rotate, rotating machinery merit is passed to described generator 2, and rotating machinery merit is converted to electric energy and exports by described generator 2.
The high-temperature flue gas 21 that the internal combustion engine 1 that described thermochemical reactor 3 receives described internal combustion engine power generation sub-system is discharged, its charging aperture passes into raw material 36, described high-temperature flue gas 21 drives in described thermochemical reactor 3 and heat absorbing type thermal chemical reaction occurs, generated reactive gas fuel under the waste heat effect of described high-temperature flue gas 21, described high-temperature flue gas 21 temperature after heat absorbing type thermal chemical reaction reduces, become middle temperature flue gas 22, and discharge from the exhanst gas outlet of described thermochemical reactor 3.
The middle temperature flue gas 22 that the thermochemical reactor 3 that described generator 4 receives described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem is discharged, the working media aqueous solution in described generator 4 is heated by middle temperature flue gas 22, water is wherein vaporizated into steam, and working media concentration of aqueous solution raises, and enter in described absorber 5; After above-mentioned vaporization, steam enters in described condenser 7 by described generator 4, be condensed into middle warm water, then enter described evaporimeter 6, in described evaporimeter 6, rapid expansion is vaporizated into steam, steam enters described absorber 5, is absorbed by the working media aqueous solution in described absorber 5, and the concentration of the working media aqueous solution reduces, and send described generator 4 back to, complete Absorption Cooling System process; Cooling water 30 in described circulating water cooling tower 8 enters described condenser 7, through with the steam heat exchange from described generator 4 after temperature raise, return after entering described absorber 5 in described circulating water cooling tower 8 and cool and recycle; The chilled water of described fan coil 10 enters in described evaporimeter 6, middle warm water in described evaporimeter 6 is when rapid expansion is vaporizated into steam, the heat of a large amount of absorption chilled water, the temperature of chilled water is reduced, chilled water after cold energy 34 reduces with temperature is for carrier, be back in described fan coil 10 by described evaporimeter 6, carry out heat exchange at described fan coil 10 with room air, thus reduce Indoor environment temperature; Described middle temperature flue gas 22 temperature after described absorption refrigeration subsystem reduces, and becomes low-temperature flue gas 23, is discharged by the exhanst gas outlet of described generator 4; The working media aqueous solution that the working media aqueous solution flowed out through described first throttle valve 15 and described second circulating pump 14 pump carries out heat exchange by described heat exchanger 17, improves the temperature of sending the working media aqueous solution of described generator 4 back to.
Described low-temperature flue gas heat regenerator 12 passes into low-temperature flue gas 23 and cold water 27 by its smoke inlet and cold water inlet respectively, and utilize the waste heat of described low-temperature flue gas 23 to be heated by the cold water 27 of input, deliver in described fan coil 10 as heating hot water, for building provides heating heat energy 33, be separated a part of heating hot water as domestic hot-water 31 simultaneously; A part of jacket water that jacket water heat exchanger 11 is discharged enters in described low-temperature flue gas heat regenerator 12, described low-temperature flue gas heat regenerator 12 utilizes the waste heat of described low-temperature flue gas 23 to carry out post bake to jacket water, produce industrial steam 28, another part jacket water is delivered in described fan coil 10, for building provides heating heat energy 33 together with the heating hot water that described low-temperature flue gas heat regenerator 12 is discharged, be separated a part of heating hot water as domestic hot-water 31 simultaneously; Described low-temperature flue gas 23 temperature after described low-temperature flue gas heat regenerator 12 reduces, and become low temperature waste gas 29, it is emptying that low temperature waste gas 29 is delivered to described chimney 13 by described low-temperature flue gas heat regenerator 12.
(3) beneficial effect
As can be seen from technique scheme, the utility model has following beneficial effect:
(1) making full use of the comparatively low-grade flue gas waste heat of internal combustion engine generator group discharge, by driving the heat absorbing type thermal chemical reactions such as methyl alcohol, ethanol or dimethyl ether cracking, producing H
2with high-quality synthesis gas fuel such as CO, the efficiency of energy utilization of fume afterheat and the grade of fume afterheat significantly can be promoted;
(2) carrier that the fuel such as the methyl alcohol of thermal chemical reaction, ethanol or dimethyl ether can be used as the renewable and clean energy resource such as biomass energy and solar energy is participated in, the complementation finally realizing fossil energy and clean reproducible energy utilizes, and reaches the object reducing fossil energy equipment usage;
(3) based on the using energy source principle of " temperature counterpart; cascade utilization ", carry out flue gas waste heat recovery, cascade utilization high-temperature flue gas waste heat scientifically and rationally by modes such as thermal chemical reaction, absorption refrigeration and heatings successively, achieve heat, electricity, the output of cold diversification energy products;
(4) make full use of the internal combustion engine generation technology of existing maturation, utilize technology to be coupled with the heat chemistry of advanced person, the technical risk of system can be reduced, can accelerate to advance this technological industrialization to apply simultaneously.
Accompanying drawing explanation
Fig. 1 is the complementary type distributed energy resource system structural representation utilizing the integrated thermochemical process of exhaust gases of internal combustion engines according to the utility model embodiment.
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-first circulating pump; 13-chimney; 14-second circulating pump; 15-first throttle valve; 16-second throttle; 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-low-temperature 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 purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
The complementary type distributed energy resource system of what the utility model provided the utilize integrated thermochemical process of exhaust gases of internal combustion engines, the high-temperature flue gas waste heat utilizing internal combustion engine generator group to discharge is to drive heat absorbing type chemical reaction process, the middle temperature fume afterheat utilizing heat absorbing type chemical reaction process to discharge drives Absorption Cooling System, and the low-temperature flue gas waste heat utilizing Absorption Cooling System to generate generates heating heat energy, domestic hot-water and industrial steam, the high efficiente callback realizing fume afterheat utilizes.
Fig. 1 is the complementary type distributed energy resource system utilizing the integrated thermochemical process of exhaust gases of internal combustion engines according to the utility model embodiment, and this system comprises 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 and utilizes subsystem.Wherein, represented by dotted arrows cool cycles pipeline, single dotted broken line represents air conditioner refrigerating pipeline, and 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 chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces, and utilizes the waste heat of above-mentioned high-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 absorption refrigeration subsystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, and utilizes the waste heat of above-mentioned middle temperature flue gas to produce cryogenic cold energy;
Low-temperature flue gas waste heat utilizes subsystem, it is connected to described absorption refrigeration subsystem, this low-temperature flue gas waste heat utilizes subsystem to receive the low-temperature flue gas of described absorption refrigeration subsystem generation, the waste heat of above-mentioned low-temperature flue gas is utilized to produce heating hot water, domestic hot-water and industrial steam, low temperature waste gas is emptying.
Below each part of the complementary type distributed energy resource system of the integrated thermochemical process of exhaust gases of internal combustion engines that utilizes of the present embodiment is described in detail, the capital equipment involved by complementary type distributed energy resource system of the integrated thermochemical process of exhaust gases of internal combustion engines that utilizes of the present embodiment comprises internal combustion engine 1, generator 2, thermochemical reactor 3, generator 4, absorber 5, evaporimeter 6, condenser 7, circulating water cooling tower 8, first circulating pump 9, fan coil 10, jacket water heat exchanger 11, low-temperature flue gas heat regenerator 12, chimney 13, second circulating pump 14, first throttle valve 15, second throttle 16 and heat exchanger 17.
Internal combustion engine power generation sub-system comprises internal combustion engine 1 and generator 2, and internal combustion engine 1 has charging aperture, air inlet and exhanst gas outlet, and 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 the outlet of smoke inlet, charging aperture, exhanst gas outlet and gaseous fuel, and the smoke inlet of thermochemical reactor 3 is connected with the exhanst gas outlet of internal combustion engine 1.
Absorption refrigeration subsystem comprises generator 4, absorber 5, evaporimeter 6, condenser 7, second circulating pump 14, first throttle valve 15, second throttle 16 and heat exchanger 17, circulating water cooling tower 8 and the first circulating pump 9.
Wherein, the smoke inlet of generator 4 is connected with the exhanst gas outlet of thermochemical reactor 3, the aqueous solution outlet of generator 4 connects first throttle valve 15, the outlet of first throttle valve 15 connects the aqueous solution entrance of absorber 5, the aqueous solution outlet of absorber 5 connects the second circulating pump 14, the outlet of the second circulating pump 14 connects the aqueous solution entrance of generator 4, is connected with heat exchanger 17 between the outlet of first throttle valve 15 and the outlet of the second circulating pump 14.
The steam outlet of generator 4 connects the steam entry of condenser 7, the middle warm water outlet of condenser 7 connects second throttle 16, the outlet of second throttle 16 connects the middle warm water entrance of evaporimeter 6, and the steam outlet of evaporimeter 6 connects the steam entry of absorber 5.
The delivery port of circulating water cooling tower 8 connects the first circulating pump 9, the outlet of the first circulating pump 9 connects the cooling water inlet of condenser 7, the coolant outlet of condenser 7 connects the cooling water inlet of absorber 5, and 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, and the chilled water outlet of fan coil 10 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.The smoke inlet of low-temperature flue gas heat regenerator 12 is connected with the exhanst gas outlet of generator 4, and its hot water outlet is connected with the hot water inlet of fan coil 10, and the first outlet of its jacket water entrance connecting tee flow divider, its exhanst gas outlet connects chimney 13.
The charging aperture of internal combustion engine 1 and air inlet pass into fuel 24 and air 25 respectively, fuel 24 and air 25 mix in the cylinder of internal combustion engine 1, burning, the heat energy discharged makes to produce high-temperature high-pressure fuel gas in cylinder, promote power output shaft and rotate acting, the power power shaft of power output shaft drive electrical generators 2 rotates, rotating machinery merit is passed to generator 2, and rotating machinery merit is converted to electric energy and exports by generator 2.Can produce high-temperature flue gas 21 in the process that fuel 24 and air 25 burn, high-temperature flue gas 21 is discharged by exhanst gas outlet by internal combustion engine 1.
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 drives in thermochemical reactor 3 and heat absorbing type thermal chemical reaction occurs, and heat absorbing type thermal chemical reaction is such as the cracking reactions such as methyl alcohol, ethanol or dimethyl ether.The raw materials 36 such as methyl alcohol, ethanol or dimethyl ether enter thermochemical reactor 3 by charging aperture, produce gaseous fuel 35, as synthesis gas H under the effect of above-mentioned high-temperature flue gas waste heat
2and CO, and exported by gaseous fuel outlet.Above-mentioned high-temperature flue gas 21 temperature after heat absorbing type thermal chemical reaction reduces, and becomes middle temperature flue gas 22, and discharges from the exhanst gas outlet of thermochemical reactor 3.
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 H
2with high-quality synthesis gas fuel such as CO, by the advanced circulatory system such as Brayton cycle or fuel cell efficiency utilization in addition, the efficiency of energy utilization of fume afterheat can significantly can be promoted.
Generator 4 receives the middle temperature flue gas 22 that thermochemical reactor 3 is discharged, the working media aqueous solution is wherein heated by middle temperature flue gas 22, water in the working media aqueous solution is constantly vaporizated into steam, along with the continuous vaporization of water, in generator 4, the concentration of the working media aqueous solution constantly raises, discharged by the aqueous solution outlet of generator 4, via first throttle valve 15, enter in absorber 5 by the aqueous solution entrance of absorber 5;
After above-mentioned vaporization, steam is discharged by the steam outlet of generator 4, enter in condenser 7 by the steam entry of condenser 7, heat exchange is carried out with the cooling water in condenser 7, the cooling water temperature be condensed in device 7, be condensed into middle warm water, middle warm water in condenser 7 is exported by middle warm water and discharges, through second throttle 16, evaporimeter 6 is entered by warm water entrance in evaporimeter 6, rapid expansion in evaporimeter 6 and be again vaporizated into steam, steam is discharged by the steam outlet of evaporimeter 6, absorber 5 is entered by the steam entry of absorber 5, absorbed by the working media aqueous solution in absorber 5, 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, generator 4 is sent back to by the aqueous solution entrance of generator 4, complete whole Absorption Cooling System process.
Due to the working media aqueous solution in absorber 5 through cooling to a certain degree, temperature is lower, in order to save the heat of heating work WATER AS FLOW MEDIUM solution, improve the efficiency of whole circulation, a heat exchanger 17 is installed additional between the outlet and the outlet of the second circulating pump 14 of the first throttle valve 15 of generator 4-absorber 5 closed circuit, the working media aqueous solution that the working media aqueous solution and the second circulating pump 14 through first throttle valve 15 outflow are pumped carries out heat exchange by heat exchanger 17, thus improves the temperature of sending the working media aqueous solution of generator 4 back to.
Cooling water 30 in circulating water cooling tower 8 is discharged by delivery port, through the first circulating pump 9, condenser 7 is entered by the cooling water inlet of condenser 7, as the condensed water in Absorption Cooling System process needed for condenser 7, through with from the steam heat exchange of generator 4 after temperature raise, discharged by the coolant outlet of condenser 7, enter absorber 5 by the cooling water inlet of absorber 5, the coolant outlet of absorber 5 cools returning in circulating water cooling tower 8 after cooling water discharge and recycles.
The chilled water of fan coil 10 exports discharge by its chilled water and enters evaporimeter 6, enter in evaporimeter 6 by the chilled water entrance of evaporimeter 6, middle warm water in evaporimeter 6 is vaporizated into steam again during in rapid expansion, the heat of chilled water can be absorbed in a large number, the temperature of chilled water is reduced, chilled water after cold energy 34 reduces with temperature is for carrier, exported by the chilled water of evaporimeter 6 and discharge, be back in fan coil 10 by the chilled water entrance of fan coil 10, carry out heat exchange at fan coil 10 and room air, thus reduce Indoor environment temperature.
Middle temperature flue gas 22 temperature after absorption refrigeration subsystem reduces, and become low-temperature flue gas, low-temperature flue gas is discharged by the exhanst gas outlet of generator 4.
Wherein, the temperature of low-temperature flue gas is less than 200 DEG C, and working media can adopt lithium bromide or ammoniacal liquor.
Low-temperature flue gas heat regenerator 12 passes into low-temperature flue gas and cold water 27 by its smoke inlet and cold water inlet respectively, low-temperature flue gas heat regenerator 12 utilizes low-temperature flue gas waste heat to be heated by the cold water 27 of input, deliver in fan coil 10 as heating hot water, for building provides heating heat energy 33, simultaneously also separable a part of heating hot water as domestic hot-water 31.
Jacket-cooling water 26 is sent into internal combustion engine 1 by jacket water heat exchanger 11, jacket-cooling water 26 temperature after all parts of internal combustion engine 1 internal pipeline combustion motor 1 cools raises, jacket water after temperature raises enters the entrance of three-way flow divider valve after being discharged by jacket water heat exchanger 11, part jacket water enters in low-temperature flue gas heat regenerator 12 by the first outlet of three-way flow divider valve, low-temperature flue gas heat regenerator 12 utilizes low-temperature flue gas waste heat to carry out post bake to jacket water, produces industrial steam 28.Another part jacket water is discharged by the second outlet of three-way flow divider valve and is delivered in fan coil 10, for building provides heating heat energy 33 together with the heating hot water that low-temperature flue gas heat regenerator 12 is discharged, simultaneously 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 become low temperature waste gas 29, low temperature waste gas 29 is discharged by low-temperature flue gas heat regenerator 12, and delivers to chimney 13, and chimney 13 is by emptying for low temperature waste gas 29.
Wherein, the temperature of low temperature waste gas 29 is less than 90 DEG C.
In such scheme, the comparatively low-grade flue gas waste heat making full use of the discharge of internal combustion engine generator group drives the heat absorbing type thermal chemical reactions such as methyl alcohol, ethanol or dimethyl ether cracking, complete the recycling of fume afterheat, and realize the conversion of heat energy form of energy and the grade lifting of fume afterheat by thermal chemical reaction.This system is different according to heat quality, adopt heat absorbing type thermal chemical reaction, absorption refrigeration thermodynamic cycle successively and generate heating hot water, the mode of industrial steam carries out flue gas waste heat recovery, realize diversification energy products by cascade utilization high-temperature flue gas waste heat scientifically and rationally to export
It should be noted that, the exhaust gas temperature that the present embodiment system is the different internal combustion engine of adaptation and the heat generating temperature needed for heat absorbing type thermal chemical reaction, can adjust the sequencing that in flow process, heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem and absorption refrigeration subsystem utilize fume afterheat flexibly.
In addition, this system is as multi-energy complementation type system, participate in the carrier that the fuel such as the methyl alcohol of heat absorbing type thermal chemical reaction, ethanol or dimethyl ether can be used as the renewable and clean energy resource such as biomass energy and solar energy, the complementation finally realizing fossil energy and clean reproducible energy utilizes, and reaches the object reducing fossil energy equipment usage.
It should be noted that, in accompanying drawing or description text, the implementation not illustrating or describe, is form known to a person of ordinary skill in the art in art, is not described in detail.In addition, the above-mentioned definition to each element is not limited in various concrete structures, the shape mentioned in embodiment, and those of ordinary skill in the art can change simply it or replace, such as:
(1) for adapting to the heat generating temperature needed for the exhaust gas temperature of different internal combustion engine and heat absorbing type thermal chemical reaction, the sequencing exchange that heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem and absorption refrigeration subsystem can be utilized fume afterheat;
(2) working media can adopt lithium bromide or ammoniacal liquor;
(3) herein can providing package containing the demonstration of the parameter of particular value, but these parameters are without the need to definitely equaling corresponding value, but can be similar to analog value in acceptable error margin or design constraint;
(4) the direction term mentioned in embodiment, such as " on ", D score, "front", "rear", "left", "right" etc., be only the direction with reference to accompanying drawing, be not used for limiting protection domain of the present utility model;
(5) above-described embodiment can based on design and the consideration of reliability, and being mixed with each other collocation uses or uses with other embodiment mix and match, and the technical characteristic namely in different embodiment can freely form more embodiment.
In sum, the complementary type distributed energy resource system of what the utility model provided the utilize integrated thermochemical process of exhaust gases of internal combustion engines, significantly can promote the efficiency of energy utilization of fume afterheat and the grade of fume afterheat, cascade utilization high-temperature flue gas waste heat scientifically and rationally, achieves heat, electricity, the output of cold diversification energy products.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. utilize the complementary type distributed energy resource system of the integrated thermochemical process of exhaust gases of internal combustion engines, it is characterized in that, this system comprises: 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
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 heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem receives the high-temperature flue gas that described internal combustion engine power generation sub-system produces, and utilizes the 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, and this absorption refrigeration subsystem receives the middle temperature flue gas that described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem produces, and utilizes the waste heat of described middle temperature flue gas to produce cryogenic cold energy;
Described low-temperature flue gas waste heat utilizes subsystem, it is connected to described absorption refrigeration subsystem, this low-temperature flue gas waste heat utilizes subsystem to receive the low-temperature flue gas of described absorption refrigeration subsystem generation, the waste heat of described low-temperature flue gas is utilized to produce heating hot water, domestic hot-water and industrial steam, finally that low temperature waste gas is emptying.
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 internal combustion engine (1) has charging aperture, air inlet and exhanst gas outlet, the power output shaft of described internal combustion engine (1) is connected with the power power shaft of described generator (2), composition internal combustion engine generator group, the exhanst gas outlet of internal combustion engine (1) is 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, described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem comprises: thermochemical reactor (3);
Described thermochemical reactor (3) has the outlet of smoke inlet, charging aperture, exhanst gas outlet and gaseous fuel, the smoke inlet of described thermochemical reactor (3) is connected to internal combustion engine power generation sub-system, and 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 comprises generator (4), absorber (5), evaporimeter (6), condenser (7), the second circulating pump (14), first throttle valve (15), second throttle (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 middle temperature flue gas of heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem generation, exhanst gas outlet is connected to low-temperature flue gas waste heat and utilizes subsystem, the aqueous solution outlet of described generator (4) connects described first throttle valve (15), the outlet of described first throttle valve (15) connects the aqueous solution entrance of described absorber (5), the aqueous solution outlet of described absorber (5) connects described second circulating pump (14), the outlet of described second circulating pump (14) connects the aqueous solution entrance of described generator (4), described heat exchanger (17) is connected with between the outlet of described first throttle valve (15) and the outlet of described second circulating pump (14),
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 second throttle (16), the outlet of described second throttle (16) connects the middle warm water entrance of described evaporimeter (6), and the steam outlet of described evaporimeter (6) connects the steam entry of described absorber (5);
The delivery port of described circulating water cooling tower (8) connects described first circulating pump (9), the outlet of described first circulating pump (9) connects the cooling water inlet of described condenser (7), the coolant outlet of described condenser (7) connects the cooling water inlet of described absorber (5), and the coolant outlet of described absorber (5) 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), and 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, described 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 the low-temperature flue gas of described absorption refrigeration subsystem generation, its hot water outlet is connected with the hot water inlet of fan coil (10), first outlet of its 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 fuel (24) and air (25) respectively, fuel (24) and air (25) rotate acting through burning pusher kinetic power output shaft in described internal combustion engine (1), power output shaft drives the power power shaft of described generator (2) to rotate, rotating machinery merit is passed to described generator (2), rotating machinery merit is converted to electric energy and exports by described generator (2).
7. complementary type distributed energy resource system according to claim 3, is characterized in that,
The high-temperature flue gas (21) that the internal combustion engine (1) that described thermochemical reactor (3) receives described internal combustion engine power generation sub-system is discharged, its charging aperture passes into raw material (36), described high-temperature flue gas (21) drives in described thermochemical reactor (3) and heat absorbing type thermal chemical reaction occurs, generated reactive gas fuel under the waste heat effect of described high-temperature flue gas (21), described high-temperature flue gas (21) temperature after heat absorbing type thermal chemical reaction reduces, become middle temperature flue gas (22), and discharge from the exhanst gas outlet of described thermochemical reactor (3).
8. complementary type distributed energy resource system according to claim 4, is characterized in that,
The middle temperature flue gas (22) that the thermochemical reactor (3) that described generator (4) receives described heat chemistry UTILIZATION OF VESIDUAL HEAT IN subsystem is discharged, the working media aqueous solution in described generator (4) is heated by middle temperature flue gas (22), water is wherein vaporizated into steam, working media concentration of aqueous solution raises, and enters in described absorber (5);
After above-mentioned vaporization, steam enters in described condenser (7) by described generator (4), be condensed into middle warm water, then enter described evaporimeter (6), in described evaporimeter (6), rapid expansion is vaporizated into steam, steam enters described absorber (5), absorbed by the working media aqueous solution in described absorber (5), the concentration of the working media aqueous solution reduces, and send described generator (4) back to, complete Absorption Cooling System process;
Cooling water (30) in described circulating water cooling tower (8) enters described condenser (7), through with the steam heat exchange from described generator (4) after temperature raise, return after entering described absorber (5) in described circulating water cooling tower (8) and cool and recycle;
The chilled water of described fan coil (10) enters in described evaporimeter (6), middle warm water in described evaporimeter (6) is when rapid expansion is vaporizated into steam, the heat of a large amount of absorption chilled water, the temperature of chilled water is reduced, chilled water after cold energy (34) reduces with temperature is for carrier, be back in described fan coil (10) by described evaporimeter (6), carry out heat exchange at described fan coil (10) and room air, reduce Indoor environment temperature;
Described middle temperature flue gas (22) temperature after described absorption refrigeration subsystem reduces, and becomes low-temperature flue gas (23), is discharged by the exhanst gas outlet of described generator (4);
The working media aqueous solution that the working media aqueous solution flowed out through described first throttle valve (15) and described second circulating pump (14) pump carries out heat exchange by described heat exchanger (17), improves the temperature of sending the working media aqueous solution of described generator (4) back to.
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 flue gas (23) and cold water (27) by its smoke inlet and cold water inlet respectively, and utilize the waste heat of described low-temperature flue gas (23) by the heating of the cold water (27) of input, deliver in described fan coil (10) as heating hot water, for building provides heating heat energy (33), and be separated 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 in described low-temperature flue gas heat regenerator (12), described low-temperature flue gas heat regenerator (12) utilizes the waste heat of described low-temperature flue gas (23) to carry out post bake to jacket water, produce industrial steam (28), another part jacket water is delivered in described fan coil (10), for building provides heating heat energy (33) together with the heating hot water that described low-temperature flue gas heat regenerator (12) is discharged, and be separated 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), it is emptying that low temperature waste gas (29) is delivered to described chimney (13) by described low-temperature flue gas heat regenerator (12).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605827A (en) * | 2015-11-26 | 2016-05-25 | 中国科学院工程热物理研究所 | Complementary type distributed energy system integrating internal combustion engine tail gas into thermochemical process |
| CN106440471A (en) * | 2016-05-30 | 2017-02-22 | 李华玉 | Combined heating and power system |
| CN113530667A (en) * | 2021-08-16 | 2021-10-22 | 浙江大学 | Zero-carbon-emission combined cooling heating and power system and method based on solar methanol decomposition synthesis cycle |
-
2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605827A (en) * | 2015-11-26 | 2016-05-25 | 中国科学院工程热物理研究所 | Complementary type distributed energy system integrating internal combustion engine tail gas into thermochemical process |
| CN106440471A (en) * | 2016-05-30 | 2017-02-22 | 李华玉 | Combined heating and power system |
| CN113530667A (en) * | 2021-08-16 | 2021-10-22 | 浙江大学 | Zero-carbon-emission combined cooling heating and power system and method based on solar methanol decomposition synthesis cycle |
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