CN104564422B - Afterheat of IC engine utilization system - Google Patents
Afterheat of IC engine utilization system Download PDFInfo
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- CN104564422B CN104564422B CN201410841633.5A CN201410841633A CN104564422B CN 104564422 B CN104564422 B CN 104564422B CN 201410841633 A CN201410841633 A CN 201410841633A CN 104564422 B CN104564422 B CN 104564422B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000002826 coolant Substances 0.000 claims abstract description 45
- 239000006200 vaporizer Substances 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 28
- 239000002912 waste gas Substances 0.000 claims abstract description 28
- 239000000498 cooling water Substances 0.000 claims abstract description 23
- 230000008676 import Effects 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 230000000630 rising effect Effects 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims description 40
- 238000001816 cooling Methods 0.000 claims description 10
- 238000005265 energy consumption Methods 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention provides a kind of afterheat of IC engine utilization system, and it comprises off gas energy recovery system, organic rankine cycle system, cooling water recirculation system. Off gas energy recovery system comprises turbo-supercharger, charge air cooler, exhaust pipe, air-water heat exchanger. Organic rankine cycle system comprises organic working medium pump, vaporizer, decompressor, condenser, generator. Cooling water circulation loop comprises water inlet pipe, rising pipe, has import and the T-valve of the first outlet and the 2nd outlet, water tank, two heat exchanging pipe. The cooling-water flowing that the water outlet of oil engine is discharged enters the water-in of oil engine through the 2nd outlet, two heat exchanging pipe, air-water heat exchanger, vaporizer, water tank, the water inlet pipe of the import of rising pipe, T-valve, T-valve, carries out water coolant heat exchange circulation. Under the heating of the waste gas residual heat that water coolant is discharged at oil engine, temperature raises, and strengthens the heat exchange efficiency of organic working medium and water coolant, and more heat can be reclaimed by organic working medium, improves the utilization rate of waste heat of oil engine.
Description
Technical field
The present invention relates to afterheat of IC engine and utilize field, particularly relate to a kind of afterheat of IC engine utilization system.
Background technology
The heat that combustion in IC engine fuel produces, a part is taken away by IC engine cooling system, and a part is discharged with tail gas, and only small part energy is used for acting. The cooling heat of recovery oil engine and tail gas energy can improve the thermo-efficiency of oil engine entirety, to improve the economy of fuel of internal combustion engine combustion gas.
Present stage oil engine cooling heat many employings water cooling mode. The heat that water coolant is taken away be mostly water tank heat exchange reach internal combustion engine temperature required after, then return to internal combustion engine cylinder jacket and circulate. The mode proposing to be exported electric energy by organic Rankine bottoming cycle direct heat exchange is had to reclaim water coolant heat. But temperature of cooling water is lower, fire is less hard, directly reclaims water coolant heat by organic Rankine bottoming cycle, and heat recovery efficiency is poor. Tail gas energy aspect is then many by the most of power energy of turbo-supercharger or turbo-compound system recovery and part waste heat energy. The waste heat energy of tail gas due to engine conditions variation range big, existing heat recovery means efficiency is lower.
Summary of the invention
In view of Problems existing in background technology, it is an object of the invention to provide a kind of afterheat of IC engine utilization system, it can improve the total energy utilising efficiency of oil engine.
In order to realize above-mentioned purpose, the present invention provides a kind of afterheat of IC engine utilization system, and it comprises off gas energy recovery system, organic rankine cycle system, cooling water recirculation system. off gas energy recovery system comprises: turbo-supercharger, one end is connected the venting port of oil engine, receive waste gas that oil engine discharges and utilize the power of the waste gas received can carry out the supply air entering in turbo-supercharger compressing and output squeezing air and outputting power can consume after waste gas, charge air cooler, is connected the other end of turbo-supercharger and is connected the inlet mouth of oil engine, to receive pressurized air that turbo-supercharger exports and make the pressurized air received cooling and the pressurized air of cooling exported to the inlet mouth of oil engine, use for oil engine, exhaust pipe, be connected turbo-supercharger, receive and carry turbo-supercharger to export dynamic force energy consumption after waste gas, and air-water heat exchanger, it is connected exhaust pipe and supplies the waste gas after turbo-supercharger is done work of exhaust pipe conveying to pass. organic rankine cycle system comprises: organic working medium pump, is connected outside organic working medium container for storing liquid, the liquid organic working medium in organic working medium container for storing liquid is exported, vaporizer, is arranged on the downstream of organic working medium pump and is connected organic working medium pump, to receive liquid organic working medium that organic working medium pump exports and to make liquid organic working medium evaporate and export as gaseous state organic working medium, decompressor, is arranged on downstream and the connection vaporizer of vaporizer, to receive the gaseous state organic working medium of vaporizer output and to be driven the weary gas after doing work and export the acting of gaseous state organic working medium by gaseous state organic working medium, condenser, is arranged on the downstream of decompressor and is connected decompressor and is connected described liquid organic working medium container for storing liquid, so that the weary gas that decompressor exports is cooled to liquid organic working medium and liquid state organic working medium is recovered to organic working medium container for storing liquid, and generator, connect decompressor and connect outside power supply or energy storage device, be inflated machine acting drive and generate electricity and power supply externally or energy storage device offer electric energy. cooling water circulation loop comprises: water inlet pipe, is communicated in the water-in of oil engine, rising pipe, one end is communicated in the water outlet of oil engine, and water-in and water outlet are via the channel connection in oil engine, T-valve, has import and the first outlet and the 2nd outlet, and import is communicated in the other end of rising pipe, water tank, is arranged on the downstream of T-valve and is connected the first of T-valve and exports, and be connected the water inlet pipe of oil engine, and two heat exchanging pipe, one end is communicated in the 2nd outlet of T-valve and the other end is communicated in the vaporizer in water tank and air-water heat exchanger through off gas energy recovery loop and organic Rankine bottoming cycle loop successively. the cooling-water flowing that the water outlet of oil engine is discharged is through rising pipe, the import of T-valve, 2nd outlet of T-valve, two heat exchanging pipe, air-water heat exchanger, vaporizer, water tank, water inlet pipe and enter the water-in of oil engine, to carry out water coolant heat exchange circulation, wherein, first water coolant in two heat exchanging pipe enters air-water heat exchanger makes water coolant absorption through the heat of the waste gas after the dynamic force energy consumption of air-water heat exchanger and heat up, the water coolant heated up afterwards enters the liquid organic working medium heat exchange that vaporizer makes the water coolant of intensification and flows through vaporizer, the water coolant releasing heat heated up also is lowered the temperature and liquid organic working medium absorbs the heat of water coolant releasing and is evaporated to gaseous state organic working medium,When carrying out water coolant heat exchange and circulate, when the air-water heat exchanger generation fault in organic Rankine bottoming cycle loop or off gas energy recovery loop, the import of T-valve is connected and the 2nd outlet of the import of T-valve and T-valve is closed with the first outlet of T-valve, the cooling-water flowing discharged from the water outlet of oil engine enters the water-in of oil engine through the first outlet of the import of rising pipe T-valve, T-valve, water tank and water inlet pipe, to carry out circulation for subsequent use.
The useful effect of the present invention is as follows:
Absorb waste gas residual heat can water coolant can solve the range of temperature width of the waste gas that oil engine is discharged as the thermal source of the vaporizer in organic Rankine bottoming cycle loop, the difficult problem that waste heat recovery difficulty is bigger, the organic working medium Lang Ken recycle system is more stable. Simultaneously, under the heating of the waste gas residual heat that water coolant is discharged at oil engine, temperature raises, and strengthens the heat exchange efficiency of organic working medium and water coolant, and more heat can be reclaimed by liquid state organic working medium, reduce heat exchanger area, improve the utilization rate of waste heat of oil engine.
The afterheat of IC engine utilization system compact construction of the present invention, has good practicality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the afterheat of IC engine utilization system according to the present invention.
Wherein, description of reference numerals is as follows:
1 off gas energy recovery loop 31 water inlet pipe
11 turbo-supercharger 32 rising pipes
12 charge air cooler 33 T-valve
13 exhaust pipe 331 imports
14 air-water heat exchangers 332 first export
2 organic Rankine bottoming cycle loops 333 the 2nd export
21 organic working medium pump 34 water tanks
22 35 pairs, vaporizer heat exchanging pipes
23 decompressor C are connected position
24 condenser 4 controllers
25 generator 5 oil engines
26 organic Rankine bottoming cycle bypass loop sensor
27 electronic valve F flow sensors
3 cooling water circulation loop T temperature sensors
Embodiment
Carry out the afterheat of IC engine utilization system illustrated in detail according to the present invention with reference to the accompanying drawings.
With reference to Fig. 1, comprise off gas energy recovery system 1, organic rankine cycle system 2, cooling water recirculation system 3 according to the afterheat of IC engine utilization system of the present invention. off gas energy recovery system 1 comprises: turbo-supercharger 11, one end is connected the venting port (not shown) of oil engine 5, receive waste gas that oil engine 5 discharges and utilize the power of the waste gas received can carry out the supply air entered in turbo-supercharger 11 compressing and output squeezing air and outputting power can consume after waste gas, charge air cooler 12, it is connected the other end of turbo-supercharger 11 and it is connected the inlet mouth (not shown) of oil engine 5, to receive the pressurized air of turbo-supercharger 11 output and to make the pressurized air received lower the temperature and the pressurized air of cooling exports to the inlet mouth of oil engine 5, use for oil engine 5, exhaust pipe 13, be connected turbo-supercharger 11, receive and carry turbo-supercharger 11 to export dynamic force energy consumption after waste gas, and air-water heat exchanger 14, the waste gas after turbo-supercharger 11 is done work being connected exhaust pipe 13 and supplying exhaust pipe 13 to carry passes. organic rankine cycle system 2 comprises: organic working medium pump 21, is connected outside organic working medium container for storing liquid (not shown), the liquid organic working medium in organic working medium container for storing liquid is exported, vaporizer 22, is arranged on the downstream of organic working medium pump 21 and is connected organic working medium pump 21, to receive liquid organic working medium that organic working medium pump 21 exports and to make liquid organic working medium evaporate and export as gaseous state organic working medium, decompressor 23, is arranged on downstream and the connection vaporizer 22 of vaporizer 22, to receive the gaseous state organic working medium of vaporizer 22 output and to be driven the weary gas after doing work and export the acting of gaseous state organic working medium by gaseous state organic working medium, condenser 24, it is arranged on the downstream of decompressor 23 and it is connected decompressor 23 and is connected described liquid organic working medium container for storing liquid, so that the weary gas that decompressor 23 exports is cooled to liquid organic working medium and liquid state organic working medium is recovered to organic working medium container for storing liquid (for participating in circulation next time), and generator 25, connect decompressor 23 and connect outside power supply or energy storage device (not shown), be inflated machine 23 do work drive and generate electricity and power supply externally or energy storage device offer electric energy. cooling water circulation loop 3 comprises: water inlet pipe 31, is communicated in the water-in (not shown) of oil engine 5, rising pipe 32, one end is communicated in the water outlet (not shown) of oil engine 5, and water-in is connected via the passage (not shown) in oil engine 5 with water outlet, T-valve 33, has import 331 and the first outlet 332 and the 2nd outlet 333, and import 331 is communicated in the other end of rising pipe 32, water tank 34, is arranged on the downstream of T-valve 33 and is connected the first of T-valve 33 and exports 332, and be connected the water inlet pipe 31 of oil engine 5, and two heat exchanging pipe 35, one end is communicated in the 2nd outlet 333 of T-valve 33 and the other end is communicated in water tank 34 and successively through the air-water heat exchanger 14 in off gas energy recovery loop 1 and the vaporizer 22 in organic Rankine bottoming cycle loop 2. the cooling-water flowing that the water outlet of oil engine 5 is discharged is through rising pipe 32, the import 331 of T-valve 33, 2nd outlet 333 of T-valve 33, two heat exchanging pipe 35, air-water heat exchanger 14, vaporizer 22, water tank 34, water inlet pipe 31 and enter the water-in of oil engine 5, to carry out water coolant heat exchange circulation, wherein, first water coolant in two heat exchanging pipe 35 enters air-water heat exchanger 14 makes water coolant absorption through the heat of the waste gas after the dynamic force energy consumption of air-water heat exchanger 14 and heat up, the water coolant heated up afterwards enters the liquid organic working medium heat exchange that vaporizer 22 makes the water coolant of intensification and flows through vaporizer 22, the water coolant releasing heat heated up also is lowered the temperature and liquid organic working medium absorbs the heat of water coolant releasing and is evaporated to gaseous state organic working medium,When carrying out water coolant heat exchange and circulate, when there is fault in the air-water heat exchanger 14 in organic Rankine bottoming cycle loop 2 or off gas energy recovery loop 1, the import 331 of T-valve 33 is connected and the import 331 of T-valve 33 exports 333 closedowns with the 2nd of T-valve 33 with the first outlet 332 of T-valve 33, the cooling-water flowing discharged from the water outlet of oil engine 5 enters the water-in of oil engine 5 through the first outlet 332 of the import 331 of rising pipe 32 T-valve 33, T-valve 33, water tank 34 and water inlet pipe 31, to carry out circulation for subsequent use.
The afterheat of IC engine utilization system of the present invention can reclaim the waste heat of the water coolant that oil engine 5 is discharged and the energy of the waste gas of oil engine 5 discharge, the energy of the waste gas that oil engine 5 is discharged is divided into two portions to reclaim, a part is for overbottom pressure energy (power energy) reclaimed by turbo-supercharger 11 is for pressurized air, a part is the waste heat energy reclaimed by air-water heat exchanger 14 heat exchange via the water coolant in two heat exchanging pipes 35 of cooling water circulation loop 3, absorb the thermal source of water coolant (high-temperature cooling water) as the vaporizer 22 in organic Rankine bottoming cycle loop 2 of the waste heat energy of this waste gas, the heat simultaneously taking away water coolant of liquid organic working medium evaporation, play the effect of cooling water coolant, externally provide electric energy by organic Rankine bottoming cycle loop 2 simultaneously.
The water coolant absorbing the waste heat energy of tail gas can solve the range of temperature width of the waste gas that oil engine 5 is discharged, the difficult problem that waste heat recovery difficulty is bigger as the thermal source of the vaporizer 22 in organic Rankine bottoming cycle loop 2. Simultaneously, under the heating of the using waste heat from tail gas that the waste heat of the water coolant that oil engine 5 is discharged is discharged at oil engine 5, more easily reclaimed by liquid organic working medium, decrease unit time quantity of circulating water, it is to increase the utilization rate of waste heat of oil engine, the total energy utilising efficiency improving oil engine.
The afterheat of IC engine utilization system compact construction of the present invention, has good practicality.
Air-water heat exchanger 14 does not participate in the heat transfer process in organic Rankine bottoming cycle loop 2 directly, and it is easy to maintenance and changes, and extends the life-span of each parts in organic Rankine bottoming cycle loop 2, ensure that the stability that afterheat of IC engine utilization system runs.
In addition, the waste heat of waste gas after the turbo-supercharger 11 that the cooling water heat total amount in the rising pipe 32 of oil engine 5 is greater than that oil engine 5 discharges, therefore the circulating cooling water yield of a part can meet the recovery of the waste heat of waste gas.
Two heat exchanging pipe 35 can arrange stopping valve (not shown) at close the 2nd outlet 333 places being connected with T-valve 33, to regulate the flow of the water coolant in two heat exchanging pipe 35.
Two heat exchanging pipe 35 can arrange stopping valve (not shown) at close water tank 34 place, to regulate the flow entering the water coolant water tank 34 from two heat exchanging pipe 35.
In an embodiment of the afterheat of IC engine utilization system according to the present invention, with reference to Fig. 1, organic rankine cycle system 2 also can comprise: organic Rankine bottoming cycle bypass loop 26, and one end is communicated in the upstream of decompressor 23 and the other end connection is connected with condenser 24 in the downstream of decompressor 23 and the described the other end; And electronic valve 27, it is arranged at organic Rankine bottoming cycle bypass loop 26, the flow in control organic Rankine bottoming cycle bypass loop 26. The setting of organic Rankine bottoming cycle bypass loop 26 and electronic valve 27 can regulate the power stage of decompressor 23, thus controls the power stage of generator 25. Specifically, when the heat that organic working medium reclaims too much, generator 25 currently do not need bigger power stage or organic working medium parameter do not reach working order need idle running time, adjust valve opening by electronic valve 27 and gaseous state organic working medium more than needed is carried out bypass in organic Rankine bottoming cycle bypass loop 26 by having, be then directly transported to organic working medium container for storing liquid through condenser 24 cooling.
In an embodiment of the afterheat of IC engine utilization system according to the present invention, with reference to Fig. 1, described afterheat of IC engine utilization system also can comprise: controller 4, communication connection off gas energy recovery loop 1, organic Rankine bottoming cycle loop 2 and cooling water circulation loop 3. Controller 4 can be on-vehicle electronic controller. Described communication connection can be wired connection or wireless connections. In one embodiment, with reference to Fig. 1, the input terminus of the decompressor 23 in organic Rankine bottoming cycle loop 2 can be provided with sensor S, communication connection controller 4, for detecting the pressure of the gaseous state organic working medium entering decompressor 23, flow, temperature. Sensor S arranges the working parameter that can ensure the organic working medium before entering decompressor 4, so that it is guaranteed that the stability that organic Rankine bottoming cycle loop 2 is run.
In an embodiment of the afterheat of IC engine utilization system according to the present invention, with reference to Fig. 1, rising pipe 32 is provided with flow sensor F and temperature sensor T, and the flow of the water coolant in the rising pipe 32 that the water outlet of sense survey oil engine 5 is connected respectively and temperature are to judge remaining amount of heat.
Claims (5)
1. an afterheat of IC engine utilization system, it is characterised in that, comprising:
Off gas energy recovery system (1), comprising:
Turbo-supercharger (11), one end is connected the venting port of oil engine (5), the power receiving oil engine (5) waste gas discharged and utilizing the waste gas received can carry out the supply air entered in turbo-supercharger (11) compressing and output squeezing air and outputting power can consume after waste gas;
Charge air cooler (12), it is connected the other end of turbo-supercharger (11) and it is connected the inlet mouth of oil engine (5), to receive pressurized air that turbo-supercharger (11) exports and make the pressurized air received cooling and the pressurized air of cooling exported to the inlet mouth of oil engine (5), use for oil engine (5);
Exhaust pipe (13), be connected turbo-supercharger (11), receive and carry turbo-supercharger (11) to export dynamic force energy consumption after waste gas; And
Air-water heat exchanger (14), the waste gas after turbo-supercharger (11) is done work being connected exhaust pipe (13) and supplying exhaust pipe (13) to carry passes;
Organic Rankine bottoming cycle loop (2), comprising:
Organic working medium pump (21), is connected outside organic working medium container for storing liquid, the liquid organic working medium in organic working medium container for storing liquid is exported;
Vaporizer (22), it is arranged on the downstream of organic working medium pump (21) and it is connected organic working medium pump (21), to receive liquid organic working medium that organic working medium pump (21) exports and to make liquid organic working medium evaporate and export as gaseous state organic working medium;
Decompressor (23), be arranged on the downstream of vaporizer (22) and be connected vaporizer (22), with receive gaseous state organic working medium that vaporizer (22) exports and driven acting by gaseous state organic working medium and export gaseous state organic working medium do work after weary gas;
Condenser (24), it is arranged on the downstream of decompressor (23) and it is connected decompressor (23) and is connected described liquid organic working medium container for storing liquid, so that the weary gas that decompressor (23) exports is cooled to liquid organic working medium and liquid state organic working medium is recovered to organic working medium container for storing liquid; And
Generator (25), connects decompressor (23) and connects outside power supply or energy storage device, be inflated machine (23) acting drive and generate electricity and power supply externally or energy storage device offer electric energy; And
Cooling water recirculation system (3), comprising:
Water inlet pipe (31), is communicated in the water-in of oil engine (5);
Rising pipe (32), one end is communicated in the water outlet of oil engine (5), and water-in and water outlet are via the channel connection in oil engine (5);
T-valve (33), has import (331) and the first outlet (332) and the 2nd exports (333), and import (331) is communicated in the other end of rising pipe (32);
Water tank (34), is arranged on the downstream of T-valve (33) and is connected the first of T-valve (33) and exports (332), and be connected the water inlet pipe (31) of oil engine (5); And
Two heat exchanging pipe (35), one end is communicated in the 2nd outlet (333) of T-valve (33) and the other end is communicated in water tank (34) and successively through the air-water heat exchanger (14) of off gas energy recovery loop (1) and the vaporizer (22) of organic Rankine bottoming cycle loop (2);
When the temperature of the water coolant in the rising pipe (32) being connected with the water outlet of oil engine (5) is not less than preset temperature, the import (331) of T-valve (33) is closed and the import of T-valve (33) is connected with the 2nd outlet (333) of T-valve (33) with the first outlet (332) of T-valve (33), the cooling-water flowing discharged from the water outlet of oil engine (5) is through rising pipe (32), the import (331) of T-valve (33), 2nd outlet (333) of T-valve (33), two heat exchanging pipe (35), air-water heat exchanger (14), vaporizer (22), water tank (34), water inlet pipe (31) and enter the water-in of oil engine (5), to carry out water coolant heat exchange circulation, wherein, first water coolant in two heat exchanging pipe (35) enters air-water heat exchanger (14) makes water coolant absorption through the heat of the waste gas after the dynamic force energy consumption of air-water heat exchanger (14) and heat up, the water coolant heated up afterwards enters the liquid organic working medium heat exchange that vaporizer (22) makes the water coolant of intensification and flows through vaporizer (22), the water coolant releasing heat heated up also is lowered the temperature and liquid organic working medium absorbs the heat of water coolant releasing and is evaporated to gaseous state organic working medium,
When carrying out water coolant heat exchange and circulate, when air-water heat exchanger (14) the generation fault of organic Rankine bottoming cycle loop (2) or off gas energy recovery loop (1), the import (331) of T-valve (33) is connected and the import (331) of T-valve (33) and the 2nd of T-valve (33) export (333) closedown with the first outlet (332) of T-valve (33), the cooling-water flowing discharged from the water outlet of oil engine (5) is through rising pipe (32), the import (331) of T-valve (33), first outlet (332) of T-valve (33), water tank (34) and water inlet pipe (31) and enter the water-in of oil engine (5), to carry out circulation for subsequent use.
2. afterheat of IC engine utilization system according to claim 1, it is characterised in that, organic Rankine bottoming cycle loop (2) also comprise:
Organic Rankine bottoming cycle bypass loop (26), one end is communicated in the upstream of decompressor (23) and the other end connection is connected with condenser (24) in the downstream of decompressor (23) and the described the other end; And
Electronic valve (27), is arranged at organic Rankine bottoming cycle bypass loop (26), the flow of control organic Rankine bottoming cycle bypass loop (26).
3. afterheat of IC engine utilization system according to claim 1, it is characterised in that, described afterheat of IC engine utilization system also comprises:
Controller (4), communication connection off gas energy recovery loop (1), organic Rankine bottoming cycle loop (2) and cooling water circulation loop (3).
4. afterheat of IC engine utilization system according to claim 3, it is characterized in that, the input terminus of the decompressor (23) in organic Rankine bottoming cycle loop (2) is provided with sensor (S), communication connection controller (4), enters the pressure of gaseous state organic working medium of decompressor (23), flow, temperature for detection.
5. afterheat of IC engine utilization system according to claim 1, it is characterized in that, the upstream of rising pipe (32) is provided with flow sensor (F) and temperature sensor (T), flow and the temperature of the water coolant in the rising pipe (32) of the water outlet connection of oil engine (5) is surveyed in sense respectively, to judge remaining amount of heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410841633.5A CN104564422B (en) | 2014-12-30 | 2014-12-30 | Afterheat of IC engine utilization system |
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| CN201410841633.5A CN104564422B (en) | 2014-12-30 | 2014-12-30 | Afterheat of IC engine utilization system |
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| CN104564422A CN104564422A (en) | 2015-04-29 |
| CN104564422B true CN104564422B (en) | 2016-06-01 |
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