CN105443177B - Reciprocating engine residual neat recovering system and method - Google Patents
Reciprocating engine residual neat recovering system and method Download PDFInfo
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- CN105443177B CN105443177B CN201610008226.5A CN201610008226A CN105443177B CN 105443177 B CN105443177 B CN 105443177B CN 201610008226 A CN201610008226 A CN 201610008226A CN 105443177 B CN105443177 B CN 105443177B
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- heat exchanger
- preheater
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- evaporator
- liquid pump
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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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- 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
- F01K23/04—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 condensation heat from one cycle heating the fluid in another cycle
-
- 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
- F01K23/06—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 combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—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 combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
-
- 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
- F01K23/06—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 combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—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 combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- 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
-
- 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
- F02G2260/00—Recuperating heat from exhaust gases of combustion engines and heat from cooling circuits
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
Present invention is disclosed a kind of reciprocating engine residual neat recovering system and method, the system includes First Heat Exchanger, the second heat exchanger, evaporator, expanding machine, generator, oil eliminator, condenser, liquid pump, circulating pump, preheater；The First Heat Exchanger is provided with gas approach, and connects reciprocating engine by the gas approach, and First Heat Exchanger is additionally provided with exhanst gas outlet；Second heat exchanger is provided with cylinder sleeve water inlet, the cylinder sleeve water out being connected respectively with reciprocating engine；Evaporator, expanding machine, oil water separator, condenser, liquid pump, preheater are sequentially connected, preheater connection evaporator, expanding machine connection generator；Second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump are sequentially connected, and form loop, and current-carrying medium circulates in the loop.Reciprocating engine residual neat recovering system proposed by the present invention and method, using the cogeneration of reciprocating engine, energy-conserving and environment-protective.
Description
Technical field
The invention belongs to field of energy-saving technology, is related to a kind of residual neat recovering system, more particularly to more than a kind of reciprocating engine
Heat recovery system；Meanwhile the invention further relates to a kind of reciprocating engine exhaust heat recovering method.
Background technology
Reciprocating engine is also piston engine, is that one kind converts pressure into rotation using one or more piston
The engine of kinetic energy, and a kind of machinery that the kinetic energy of piston is converted into other mechanical energy, mainly produced using fuel combustion
Heat energy by the expansion of liquid (such as water) or gas, so as to promote piston, convert heat into the machinery of kinetic energy.
Reciprocating engine chance produces larger waste heat, nowadays, also without relatively good method to reciprocating engine
Waste heat is reclaimed, so as to virtually have lost the substantial amounts of energy.
In view of this, nowadays there is an urgent need to design a kind of reciprocating engine waste heat recovery mode, to overcome prior art
Drawbacks described above.
The content of the invention
The technical problems to be solved by the invention are：A kind of reciprocating engine residual neat recovering system is provided, using reciprocal
The cogeneration of engine, energy-conserving and environment-protective.
In addition, the present invention also provides a kind of reciprocating engine exhaust heat recovering method, sent out using the waste heat of reciprocating engine
Electricity, energy-conserving and environment-protective.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of reciprocating engine residual neat recovering system, the system include：First Heat Exchanger, the second heat exchanger, evaporator,
Expanding machine, generator, oil eliminator, condenser, liquid pump, circulating pump, preheater；
The First Heat Exchanger is provided with gas approach, and connects reciprocating engine, First Heat Exchanger by the gas approach
It is additionally provided with exhanst gas outlet；Second heat exchanger is provided with cylinder sleeve water inlet, the cylinder sleeve water out being connected respectively with reciprocating engine；
The evaporator, expanding machine, oil water separator, condenser, liquid pump, preheater are sequentially connected, preheater connection
Evaporator, expanding machine connection generator；
Second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump are sequentially connected, and form loop, current-carrying
Medium circulates in the loop.
As a preferred embodiment of the present invention, the flue gas of the reciprocating engine enters the first heat exchange by gas approach
Device is exchanged heat, and the flue gas after heat exchange is discharged by exhanst gas outlet；The jacket water of the reciprocating engine is entered by cylinder sleeve water inlet
Second heat exchanger exchanges heat, and the jacket water after heat exchange flows back to reciprocating engine by cylinder sleeve water out；
The loop that the current-carrying medium is formed by the second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump
Interior circulation, and exchanged heat with the flue gas of reciprocating engine and jacket water；
The refrigeration working medium of low-temp low-pressure is boosted in liquid pump, is heated vaporization subsequently into preheater, evaporator, directly
Enter expander acting to after turning into overheated gas, drive electrical power generators；Low temperature low pressure gas after acting passes through oil
Enter condenser after separator separation, it is cooled to condense into liquid；Return in liquid pump, complete a circulation.
A kind of exhaust heat recovering method of above-mentioned residual neat recovering system, the exhaust heat recovering method comprise the following steps：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the cylinder after heat exchange
Set water flows back to reciprocating engine by cylinder sleeve water out；
The loop that the current-carrying medium is formed by the second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump
Interior circulation, and exchanged heat with the flue gas of reciprocating engine and jacket water；
The refrigeration working medium of low-temp low-pressure is boosted in liquid pump, is heated vaporization subsequently into preheater, evaporator, directly
Enter expander acting to after turning into overheated gas, drive electrical power generators；Low temperature low pressure gas after acting passes through oil
Enter condenser after separator separation, it is cooled to condense into liquid；Return in liquid pump, complete a circulation.
A kind of reciprocating engine residual neat recovering system, the residual neat recovering system include：First Heat Exchanger, the second heat exchange
Device, evaporator, expanding machine, generator, flash distillation bucket, oil eliminator, condenser, the first liquid pump, second liquid pump, first circulation
Pump, second circulation pump, preheater；
The First Heat Exchanger is provided with gas approach, and connects reciprocating engine, First Heat Exchanger by the gas approach
It is additionally provided with exhanst gas outlet；Second heat exchanger is provided with cylinder sleeve water inlet, the cylinder sleeve water out being connected respectively with reciprocating engine；
The evaporator, expanding machine, oil water separator, condenser, the first liquid pump, preheater are sequentially connected, preheater
Connect evaporator, expanding machine connection generator；Preheater, flash distillation bucket, expanding machine are sequentially connected, and flash distillation bucket passes through second liquid pump
Connect preheater；
The First Heat Exchanger, evaporator, first circulation pump are sequentially connected, and form loop, the first current-carrying medium is in the ring
Circulated in road；Second heat exchanger, preheater, second circulation pump are sequentially connected, and form loop, the second current-carrying medium is in the loop
Circulation.
As a preferred embodiment of the present invention, the flash distillation bucket, evaporator connect same expanding machine, and flash distillation bucket connection is swollen
The gas supplementing opening of swollen machine.
As a preferred embodiment of the present invention, the flue gas of the reciprocating engine enters the first heat exchange by gas approach
Device is exchanged heat, and the flue gas after heat exchange is discharged by exhanst gas outlet；The first current-carrying medium passes through First Heat Exchanger, evaporator,
One circulating pump formed loop in circulate, and with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter expander after overheated gas to do work, drive electrical power generators；Low temperature low pressure gas after acting passes through oil eliminator
Enter condenser after separation, it is cooled to condense into liquid and return in the first liquid pump；The refrigeration working medium of low-temp low-pressure is first
Liquid pump is boosted, and subsequently into preheater, forms circulation；Meanwhile the refrigeration working medium another part preheated by preheater leads to
The flash distillation of flash distillation bucket is crossed, is then done work by the gas supplementing opening of expanding machine into expander, drives electrical power generators；Flashing bucket will
Cool down the liquid condensed into and be back to second liquid pump again；The refrigeration working medium of low-temp low-pressure is boosted in second liquid pump, then
Into preheater, circulation is formed.
As a preferred embodiment of the present invention, the residual neat recovering system includes two expanding machines, two generators, tool
Body includes the first expanding machine, the second expanding machine, the first generator, the second generator；
The evaporator, the first expanding machine, oil eliminator are sequentially connected, preheater, flash distillation bucket, the second expanding machine, oil
It is sequentially connected from device；First expanding machine connects the first generator, and the second expanding machine connects the second generator.
As a preferred embodiment of the present invention, the flue gas of the reciprocating engine enters the first heat exchange by gas approach
Device is exchanged heat, and the flue gas after heat exchange is discharged by exhanst gas outlet；The first current-carrying medium passes through First Heat Exchanger, evaporator,
One circulating pump formed loop in circulate, and with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter the first expander after overheated gas to do work, drive the first electrical power generators；Low temperature low pressure gas after acting passes through
Enter condenser after oil eliminator separation, be cooled and condense into liquid and return in the first liquid pump；It is meanwhile pre- by preheater
Refrigeration working medium another part of heat is flashed by flashing bucket, is then done work into the second expander, drives the second generator
Generate electricity；Low temperature low pressure gas after acting enters condenser after being separated by oil eliminator, cooled to condense into liquid and return
In first liquid pump；The refrigeration working medium of low-temp low-pressure is boosted in the first liquid pump, subsequently into preheater, forms circulation；Dodge
The liquid that cooling condenses into is back to second liquid pump by steaming kier again, and the refrigeration working medium of low-temp low-pressure is risen in second liquid pump
Pressure, subsequently into preheater, form circulation.
A kind of exhaust heat recovering method of above-mentioned residual neat recovering system, the exhaust heat recovering method comprise the following steps：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；Circulated in the loop that the first current-carrying medium is formed by First Heat Exchanger, evaporator, first circulation pump,
And with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter expander after overheated gas to do work, drive electrical power generators；Low temperature low pressure gas after acting passes through oil eliminator
Enter condenser after separation, it is cooled to condense into liquid and return in the first liquid pump；The refrigeration working medium of low-temp low-pressure is first
Liquid pump is boosted, and subsequently into preheater, forms circulation；Meanwhile the refrigeration working medium another part preheated by preheater leads to
The flash distillation of flash distillation bucket is crossed, is then done work into expander, drives electrical power generators；The liquid that flash distillation bucket condenses into cooling is again
It is back to second liquid pump；The refrigeration working medium of low-temp low-pressure is boosted in second liquid pump, and subsequently into preheater, formation follows
Ring.
A kind of exhaust heat recovering method of above-mentioned residual neat recovering system, the exhaust heat recovering method comprise the following steps：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；Circulated in the loop that the first current-carrying medium is formed by First Heat Exchanger, evaporator, first circulation pump,
And with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter the first expander after overheated gas to do work, drive the first electrical power generators；Low temperature low pressure gas after acting passes through
Enter condenser after oil eliminator separation, be cooled and condense into liquid and return in the first liquid pump；It is meanwhile pre- by preheater
Refrigeration working medium another part of heat is flashed by flashing bucket, is then done work into the second expander, drives the second generator
Generate electricity；Low temperature low pressure gas after acting enters condenser after being separated by oil eliminator, cooled to condense into liquid and return
In first liquid pump；The refrigeration working medium of low-temp low-pressure is boosted in the first liquid pump, subsequently into preheater, forms circulation；Dodge
The liquid that cooling condenses into is back to second liquid pump by steaming kier again, and the refrigeration working medium of low-temp low-pressure is risen in second liquid pump
Pressure, subsequently into preheater, form circulation.
The beneficial effects of the present invention are：Reciprocating engine residual neat recovering system proposed by the present invention and method, it is available
The cogeneration of reciprocating engine, effectively reduce energy consumption, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of reciprocating engine residual neat recovering system of the present invention in embodiment one.
Fig. 2 is the composition schematic diagram of reciprocating engine residual neat recovering system of the present invention in embodiment two.
Fig. 3 is the composition schematic diagram of reciprocating engine residual neat recovering system of the present invention in embodiment three.
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
Referring to Fig. 1, present invention is disclosed a kind of reciprocating engine residual neat recovering system, the system includes：First changes
Hot device 1, the second heat exchanger 2, evaporator 3, expanding machine 4, generator 5, oil eliminator 6, condenser 7, liquid pump 8, circulating pump 10,
Preheater 9.
The First Heat Exchanger 1 is provided with gas approach, and connects reciprocating engine 100 by the gas approach, and first changes
Hot device 1 is additionally provided with exhanst gas outlet, and the flue gas after heat exchange is discharged.Second heat exchanger 2 is provided with to be connected with reciprocating engine respectively
Cylinder sleeve water inlet, the cylinder sleeve water out connect.
The evaporator 3, expanding machine 4, oil water separator 6, condenser 7, liquid pump 8, preheater 9, which are sequentially connected, (to be formed
Loop)；Preheater 9 connects evaporator 3, and expanding machine 4 connects generator 5.Evaporator 3, expanding machine 4, oil water separator 6, condensation
Device 7, liquid pump 8, preheater 9 form organic Rankine cycle power generation system, can utilize the cogeneration of reciprocating engine.
Second heat exchanger 2, First Heat Exchanger 1, evaporator 3, preheater 9, circulating pump 10 are sequentially connected, and form ring
Road, current-carrying medium circulate in the loop.
The action principle of organic Rankine cycle power generation system is：The refrigeration working medium of low-temp low-pressure is boosted in liquid pump 8,
Then the heated vaporization of preheater 9, evaporator 3 is sequentially entered, until enter the expansion work of expanding machine 4 after turning into overheated gas,
Driving generator 5 generates electricity；Low temperature low pressure gas after acting enters condenser 7 after being separated by oil eliminator 6, is cooled and condenses
Into liquid；Return in liquid pump 8, complete a circulation.
The flue gas of the reciprocating engine 100 is exchanged heat by gas approach into First Heat Exchanger 1, and the flue gas after heat exchange leads to
Cross exhanst gas outlet discharge；The jacket water of the reciprocating engine 100 is exchanged heat by cylinder sleeve water inlet into the second heat exchanger 2, is changed
Jacket water after heat flows back to reciprocating engine 100 by cylinder sleeve water out.
The current-carrying medium is formed by the second heat exchanger 2, First Heat Exchanger 1, evaporator 3, preheater 9, circulating pump 10
Loop in circulate, and exchanged heat with the flue gas of reciprocating engine 100 and jacket water.
The composition of reciprocating engine residual neat recovering system of the present invention is described above, the present invention is disclosing above-mentioned waste heat recovery
While system, a kind of exhaust heat recovering method of above-mentioned residual neat recovering system is also disclosed, the exhaust heat recovering method includes as follows
Step (each step in no particular order order)：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the cylinder after heat exchange
Set water flows back to reciprocating engine by cylinder sleeve water out；
The refrigeration working medium of low-temp low-pressure is boosted in liquid pump, is heated vaporization subsequently into preheater, evaporator, directly
Enter expander acting to after turning into overheated gas, drive electrical power generators；Low temperature low pressure gas after acting passes through oil
Enter condenser after separator separation, it is cooled to condense into liquid；Return in liquid pump, complete a circulation；
The loop that the current-carrying medium is formed by the second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump
Interior circulation, and exchanged heat with the flue gas of reciprocating engine and jacket water.
Embodiment two
Referring to Fig. 2, the present invention discloses a kind of reciprocating engine residual neat recovering system, the residual neat recovering system includes：
First Heat Exchanger 1, the second heat exchanger 2, evaporator 3, expanding machine 4, generator 5, flash distillation bucket 13, oil eliminator 6, condenser 7, the
One liquid pump 8, second liquid pump 12, first circulation pump 11, second circulation pump 10, preheater 9.
The First Heat Exchanger 1 is provided with gas approach, and connects reciprocating engine 100 by the gas approach, and first changes
Hot device 1 is additionally provided with exhanst gas outlet；Second heat exchanger 1 is provided with cylinder sleeve water inlet, the jacket water being connected respectively with reciprocating engine and gone out
Mouthful.
The evaporator 3, expanding machine 4, oil water separator 6, condenser 7, the first liquid pump 8, preheater 9 are sequentially connected,
Preheater 9 connects evaporator 3, and expanding machine 4 connects generator 5；Preheater 9, flash distillation bucket 13, expanding machine 4 are sequentially connected, and flash bucket
13 connect preheater 9 by second liquid pump 12.
The First Heat Exchanger 1, evaporator 3, first circulation pump 11 are sequentially connected, and form loop, and the first current-carrying medium exists
Circulated in the loop；Second heat exchanger 2, preheater 9, second circulation pump 10 are sequentially connected, and form loop, and the second current-carrying medium exists
Circulated in the loop.
In the present embodiment, the flash distillation bucket 13, evaporator 3 connect same expanding machine 4, and flash distillation bucket 13 connects expanding machine 4
Gas supplementing opening.
The flue gas of the reciprocating engine 100 is exchanged heat by gas approach into First Heat Exchanger 1, and the flue gas after heat exchange leads to
Cross exhanst gas outlet discharge；The loop that the first current-carrying medium is formed by First Heat Exchanger 1, evaporator 3, first circulation pump 11
Interior circulation, and with the flue gas heat exchange of reciprocating engine 100.
The jacket water of the reciprocating engine 100 is exchanged heat by cylinder sleeve water inlet into the second heat exchanger 2, the cylinder after heat exchange
Set water flows back to reciprocating engine 100 by cylinder sleeve water out；Second current-carrying medium passes through the second heat exchanger 2, preheater 9, second
Circulate in the loop that circulating pump 10 is formed, and exchanged heat with the jacket water of reciprocating engine 100.
The refrigeration working medium preheated by preheater 9 is partly into evaporator 3, is heated and vaporized by evaporator 3, until into
To enter the expansion work of expanding machine 4 after overheated gas, driving generator 5 generates electricity；Low temperature low pressure gas after acting passes through oil
Enter condenser after being separated from device 6, be cooled and condense into liquid and return in the first liquid pump 8；The refrigeration working medium of low-temp low-pressure
It is boosted in the first liquid pump 8, subsequently into preheater 9, forms circulation.
Meanwhile the refrigeration working medium another part preheated by preheater 9 is flashed by flashing bucket 13, then passes through expanding machine
4 gas supplementing opening enters the expansion work of expanding machine 4, and driving generator 5 generates electricity；The liquid that cooling condenses into is back to by flash distillation bucket 13 again
Second liquid pump 12；The refrigeration working medium of low-temp low-pressure is boosted in second liquid pump 12, and subsequently into preheater 9, formation follows
Ring.
The composition of reciprocating engine residual neat recovering system of the present invention is described above, the present invention is disclosing above-mentioned waste heat recovery
While system, a kind of exhaust heat recovering method of above-mentioned residual neat recovering system is also disclosed, the exhaust heat recovering method includes as follows
Step (each step in no particular order order)：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；Circulated in the loop that the first current-carrying medium is formed by First Heat Exchanger, evaporator, first circulation pump,
And with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter expander after overheated gas to do work, drive electrical power generators；Low temperature low pressure gas after acting passes through oil eliminator
Enter condenser after separation, it is cooled to condense into liquid and return in the first liquid pump；The refrigeration working medium of low-temp low-pressure is first
Liquid pump is boosted, and subsequently into preheater, forms circulation；Meanwhile the refrigeration working medium another part preheated by preheater leads to
The flash distillation of flash distillation bucket is crossed, is then done work into expander, drives electrical power generators；The liquid that flash distillation bucket condenses into cooling is again
It is back to second liquid pump；The refrigeration working medium of low-temp low-pressure is boosted in second liquid pump, and subsequently into preheater, formation follows
Ring.
Embodiment three
Referring to Fig. 3, the present embodiment and the difference of embodiment two are, and in the present embodiment, the residual neat recovering system bag
Two expanding machines, two generators are included, specifically include the first expanding machine 41, the second expanding machine 42, the first generator 51, second hair
Motor 52.
The evaporator 3, the first expanding machine 41, oil eliminator 6 are sequentially connected, and preheater 9, flash distillation bucket 13, second expand
Machine 42, oil eliminator 6 are sequentially connected；First expanding machine 41 connects the first generator 51, and the second expanding machine 42 connection second generates electricity
Machine 52.
The flue gas of the reciprocating engine 100 is exchanged heat by gas approach into First Heat Exchanger 1, and the flue gas after heat exchange leads to
Cross exhanst gas outlet discharge；The loop that the first current-carrying medium is formed by First Heat Exchanger 1, evaporator 3, first circulation pump 11
Interior circulation, and with the flue gas heat exchange of reciprocating engine 100.
The jacket water of the reciprocating engine 100 is exchanged heat by cylinder sleeve water inlet into the second heat exchanger 2, the cylinder after heat exchange
Set water flows back to reciprocating engine 100 by cylinder sleeve water out；Second current-carrying medium passes through the second heat exchanger 2, preheater 9, second
Circulate in the loop that circulating pump 10 is formed, and exchanged heat with the jacket water of reciprocating engine 100.
The refrigeration working medium preheated by preheater 9 is partly into evaporator 3, is heated and vaporized by evaporator 3, until into
To enter the expansion work of the first expanding machine 41 after overheated gas, the first generator 51 of driving generates electricity；Low-temp low-pressure gas after acting
Body enters condenser 7 after being separated by oil eliminator 6, is cooled and condenses into liquid and return in the first liquid pump 8.Meanwhile pass through
The refrigeration working medium another part for crossing the preheating of preheater 9 is flashed by flashing bucket 13, then into the expansion work of the second expanding machine 42,
The second generator 52 is driven to generate electricity；Low temperature low pressure gas after acting enters condenser 7 after being separated by oil eliminator 6, cold
But liquid is condensed into return in the first liquid pump 8.The refrigeration working medium of low-temp low-pressure is boosted in the first liquid pump 8, Ran Houjin
Enter preheater 9, form circulation.The liquid that cooling condenses into is back to second liquid pump 12, the system of low-temp low-pressure by flash distillation bucket 13 again
Cold working medium is boosted in second liquid pump 12, subsequently into preheater 9, forms circulation.
The composition of reciprocating engine residual neat recovering system of the present invention is described above, the present invention is disclosing above-mentioned waste heat recovery
While system, a kind of exhaust heat recovering method of above-mentioned residual neat recovering system is also disclosed, the exhaust heat recovering method includes as follows
Step (each step in no particular order order)：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange passes through cigarette
Gas outlet discharge；Circulated in the loop that the first current-carrying medium is formed by First Heat Exchanger, evaporator, first circulation pump,
And with the flue gas heat exchange of reciprocating engine；
The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；Second current-carrying medium is formed by the second heat exchanger, preheater, second circulation pump
Loop in circulate, and exchanged heat with the jacket water of reciprocating engine；
The refrigeration working medium preheated by preheater is partly into evaporator, is heated and vaporized by evaporator, until turning into
Enter the first expander after overheated gas to do work, drive the first electrical power generators；Low temperature low pressure gas after acting passes through
Enter condenser after oil eliminator separation, be cooled and condense into liquid and return in the first liquid pump；It is meanwhile pre- by preheater
Refrigeration working medium another part of heat is flashed by flashing bucket, is then done work into the second expander, drives the second generator
Generate electricity；Low temperature low pressure gas after acting enters condenser after being separated by oil eliminator, cooled to condense into liquid and return
In first liquid pump；The refrigeration working medium of low-temp low-pressure is boosted in the first liquid pump, subsequently into preheater, forms circulation；Dodge
The liquid that cooling condenses into is back to second liquid pump by steaming kier again, and the refrigeration working medium of low-temp low-pressure is risen in second liquid pump
Pressure, subsequently into preheater, form circulation.
In summary, reciprocating engine residual neat recovering system proposed by the present invention and method, using reciprocating engine
Cogeneration, effectively reduce energy consumption, energy-conserving and environment-protective.
Here description of the invention and application are illustrative, are not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the art
The replacement and equivalent various parts for applying example are known.It should be appreciated by the person skilled in the art that the present invention is not being departed from
Spirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and part are realized.In the case where not departing from scope and spirit of the present invention, embodiments disclosed herein can be entered
The other deformations of row and change.
Claims (2)
1. a kind of reciprocating engine residual neat recovering system, it is characterised in that the system includes：First Heat Exchanger, the second heat exchange
Device, evaporator, the first expanding machine, the first generator, the second expanding machine, the second generator, flash distillation bucket, oil eliminator, condenser,
First liquid pump, second liquid pump, first circulation pump, second circulation pump, preheater；
The First Heat Exchanger is provided with gas approach, and connects reciprocating engine by the gas approach, and First Heat Exchanger is also set
There is exhanst gas outlet；Second heat exchanger is provided with cylinder sleeve water inlet, the cylinder sleeve water out being connected respectively with reciprocating engine；
The evaporator, the first expanding machine, oil water separator, condenser, the first liquid pump, preheater are sequentially connected, preheater
Evaporator is connected, preheater, flash distillation bucket, the second expanding machine, oil eliminator are sequentially connected, and the first expanding machine connection first generates electricity
Machine, the second expanding machine connect the second generator；
Second heat exchanger, First Heat Exchanger, evaporator, preheater, second circulation pump are sequentially connected, and form loop, current-carrying
Medium circulates in the loop；
The reciprocating engine connects First Heat Exchanger by gas approach and exchanged heat, and First Heat Exchanger heat exchange is provided with exhanst gas outlet,
Discharged for the flue gas after heat exchange；First Heat Exchanger, evaporator, first circulation pump are sequentially connected, and are formed in loop and circulated, for first
After being circulated in the loop that current-carrying medium is formed by First Heat Exchanger, evaporator, first circulation pump, the flue gas with reciprocating engine
Heat exchange；
The second heat exchanger heat exchange is provided with cylinder sleeve water inlet, is exchanged heat for the jacket water of reciprocating engine into the second heat exchanger,
The heat exchange of second heat exchanger is provided with cylinder sleeve water out, and reciprocating engine is flowed back to for the jacket water after heat exchange；Second heat exchanger, preheating
Device, second circulation pump are sequentially connected, and are formed in loop and circulated, pass through the second heat exchanger, preheater, second for the second current-carrying medium
After being circulated in the loop that circulating pump is formed, exchanged heat with the jacket water of reciprocating engine；
The preheater connects evaporator, and evaporator connects the first expanding machine；A refrigeration working medium part by preheater preheating
Into evaporator, heated and vaporized by evaporator, until being done work as the first expander is entered after overheated gas, first is swollen
Swollen machine connects the first generator, drives the first electrical power generators；
Oil eliminator connects condenser, and condenser connects the first liquid pump；Low temperature low pressure gas after acting passes through oil eliminator
Enter condenser after separation, it is cooled to condense into liquid and return in the first liquid pump；Preheater connection flash distillation bucket, flash distillation bucket connect
The second expanding machine is connect, refrigeration working medium another part by preheater preheating flashes by flashing bucket, then into the second expansion
Machine expansion work, the second expanding machine connect the second generator, drive the second electrical power generators；Oil eliminator connects condenser, cold
Condenser connects the first liquid pump, and the low temperature low pressure gas after acting enters condenser after being separated by oil eliminator, is cooled solidifying
Form liquid to return in the first liquid pump；First liquid pump connects preheater, and the refrigeration working medium of low-temp low-pressure is in the first liquid
Pump is boosted, and subsequently into preheater, forms circulation；Bucket connection second liquid pump is flashed, second liquid pump connection preheater, is dodged
The liquid that cooling condenses into is back to second liquid pump by steaming kier again, and the refrigeration working medium of low-temp low-pressure is risen in second liquid pump
Pressure, subsequently into preheater, form circulation.
A kind of 2. exhaust heat recovering method of residual neat recovering system described in claim 1, it is characterised in that the exhaust heat recovering method
Comprise the following steps：
The flue gas of the reciprocating engine is exchanged heat by gas approach into First Heat Exchanger, and the flue gas after heat exchange is gone out by flue gas
Mouth discharge；The jacket water of the reciprocating engine is exchanged heat by cylinder sleeve water inlet into the second heat exchanger, the jacket water after heat exchange
Reciprocating engine is flowed back to by cylinder sleeve water out；
Followed in the loop that the current-carrying medium is formed by the second heat exchanger, First Heat Exchanger, evaporator, preheater, circulating pump
Ring, and exchanged heat with the flue gas of reciprocating engine and jacket water；
The refrigeration working medium of low-temp low-pressure is boosted in liquid pump, and vaporization is heated subsequently into preheater, evaporator, until into
Done work to enter expander after overheated gas, drive electrical power generators；Low temperature low pressure gas after acting is separated by oil
Enter condenser after device separation, it is cooled to condense into liquid；Return in liquid pump, complete a circulation.
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| CN105673108A (en) * | 2016-04-01 | 2016-06-15 | 上海开山能源装备有限公司 | Oil injection ORC expander system |
| CN106286006A (en) * | 2016-09-18 | 2017-01-04 | 清华大学 | A kind of power plant exhaust residual neat recovering system |
| CN107044358B (en) * | 2017-05-25 | 2018-04-20 | 河南省科学院能源研究所有限公司 | A kind of afterheat utilizing system and method for biomass energy internal combustion engine |
| CN108825503B (en) * | 2018-08-31 | 2024-01-23 | 重庆开山流体机械有限公司 | Air supplementing device of oil injection screw type vacuum pump |
| CN111042948A (en) * | 2019-11-22 | 2020-04-21 | 天津大学 | Multistage internal combustion engine waste heat recovery system with flash evaporation |
| CN111396291B (en) * | 2020-03-27 | 2022-07-12 | 董荣华 | Compressed gas waste heat recovery power generation system |
| CN115234401A (en) * | 2022-09-21 | 2022-10-25 | 苏州亚太精睿传动科技股份有限公司 | Novel hybrid power system driven by waste heat in auxiliary mode and method thereof |
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