CN106286006A - A kind of power plant exhaust residual neat recovering system - Google Patents
A kind of power plant exhaust residual neat recovering system Download PDFInfo
- Publication number
- CN106286006A CN106286006A CN201610830398.0A CN201610830398A CN106286006A CN 106286006 A CN106286006 A CN 106286006A CN 201610830398 A CN201610830398 A CN 201610830398A CN 106286006 A CN106286006 A CN 106286006A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- power plant
- flash vessel
- condenser
- plant exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Abstract
The present invention relates to a kind of power plant exhaust residual neat recovering system, this device includes the heat exchanger that at least two is connected, the described heat exchanger being positioned at one end is sequentially connected with flash vessel, decompressor and condenser, and described condenser is connected with the described heat exchanger being positioned at the other end；Described flash vessel is also connected with the stream between the described heat exchanger at two ends.Apparatus of the present invention organic efficiency is high, can overcome limitation that organic Rankine bottoming cycle irreversible loss is big, have that organic working medium is high with aerofluxus thermal source matching degree, the adaptable feature of variable working condition.
Description
Technical field
The present invention relates to energy-saving equipment technical field, particularly relate to a kind of power plant exhaust residual neat recovering system.
Background technology
More than automobile and marine power plant exhaust, pick up the heat has important social value and warp to energy-saving and emission-reduction
Ji is worth.The energy of more than the 50% of automotive fuel burning gross energy has been discharged into air by the form of waste heat, overbottom pressure energy
In, therefore the recycling of exhaust heat is to improve internal combustion engine thermal efficiency, the effective way of reduction oil consumption.Organic Rankine bottoming cycle because of
Its operating temperature is low, equipment size is little, safety advantages of higher may be used on automobile and marine power plant exhaust waste heat recovery
Field.Research currently for organic Rankine bottoming cycle is mainly from the selection of cycle fluid, scheme Design, loop parameter
The optimization design aspect of the key equipments such as coupling and decompressor is carried out.
But, still there is two large problems not yet to solve for organic Rankine bottoming cycle: firstly for organic Rankine bottoming cycle, heat transfer
During Temperature Matching degree between organic working medium and external heat source relatively low, this is the largest source of cyclic process irreversibility, gives
System brings greatlyLoss.In order to improve the Temperature Matching degree between working medium and thermal source, reduce the irreversible damage of system
Lose, prior art proposes kinds of schemes, circulate including Trans-critical cycle and supercritical organic Rankine, use non-azeotropic working medium and have
Machine Rankine flash distillation circulation etc..Wherein, in organic Rankine flash distillation On The Cycle Working Process, working medium becomes full after absorbing heat in a heat exchanger
And liquid, subsequently into part flash-off of steam in flash tank, steam enters work done in decompressor, and residue saturated solution is by throttling
After valve with work done after steam enter in condenser and condense.Owing to working medium and thermal source do not exist phase transformation in diabatic process
Journey, therefore effectively improves the Temperature Matching degree of working medium and thermal source, reduces diabatic processLoss.Organic Rankine dodges
Although steaming circulation and having higherEfficiency, but the choke valve in flash distillation cyclic process still can bring biggerLoss.
The most unsolved Second Problem of organic Rankine bottoming cycle is: the operating mode of automobile and Ship Power Equipment is unstable, example
As automobile exhaust temperature changes between 200～900 DEG C.Variable working condition makes organic rankine cycle system efficiency low, even can make
System cannot normally work.For this problem, circulate according to organic Rankine flash distillation, then the situation that waste heat is not enough when variable working condition
Under, liquid working substance can be made to cannot be introduced into decompressor by the gas-liquid separating characteristic of flash vessel, thus ensure that the normal of system
Operating.
Large development potentiality and the automobile that low-grade energy utilizes aspect to have is circulated in view of organic Rankine flash distillation
And ship power system delivery temperature is with the big feature of fluctuation of operating conditions scope, therefore can use the mode that organic Rankine flash distillation circulates
Reclaim the exhaust heat of dynamical system.
But, when using the exhaust heat of conventional organic Rankine flash distillation circulation and stress automobile and ship power system, dodge
Steamed journey and saturated solution throttling process still can bring bigger irreversible loss.Therefore for reducing organic Rankine flash distillation circulation
The irreversible loss caused due to throttling action, improves system effectiveness, and the present invention proposes and a kind of utilizes the organic bright of improvement
It agree automobile and the marine power plant exhaust residual neat recovering system of flash distillation circulation.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of organic efficiency height and variable working condition adaptable power plant exhaust waste heat returns
Receipts system.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides a kind of power plant exhaust residual neat recovering system, including at least
The heat exchanger of two series connection, the described heat exchanger being positioned at one end is sequentially connected with flash vessel, decompressor and condenser, described
Condenser is connected with the described heat exchanger being positioned at the other end；Described flash vessel is also and between the described heat exchanger at two ends
Stream connect.
Wherein, described flash vessel includes that gas outlet and liquid outlet, described gas outlet are connected with described decompressor, institute
State liquid outlet to be connected with the stream between the described heat exchanger at two ends.
Wherein, at described condenser be provided with first pump housing between the described heat exchanger of the other end.
Wherein, the liquid outlet at described flash vessel is provided with second pump housing.
Wherein, the described heat exchanger being positioned at one end is sequentially connected with flash vessel, decompressor and condenser by pipeline, institute
The described heat exchanger stating condenser and be positioned at the other end is connected by pipeline；Described flash vessel and the described heat being positioned at two ends are handed over
Stream between parallel operation is connected by pipeline.
Wherein, also include that electromotor, described electromotor are connected with described decompressor.
(3) beneficial effect
A kind of power plant exhaust residual neat recovering system that the present invention provides, it has the advantage that 1, apparatus of the present invention
Utilizing the organic Rankine flash distillation improved circulation to carry out automobile and the recovery of marine power plant exhaust waste heat, heat recovery efficiency is high,
Energy-saving effect is notable.2, in flash vessel of the present invention, unevaporated liquid working medium directly connects with heat exchanger without expenditure and pressure
Connect, therefore overcome the limitation that organic Rankine bottoming cycle irreversible loss is big.3, apparatus of the present invention have organic working medium and exhaust heat
Source matching degree is high, the adaptable feature of variable working condition, especially also can ensure system in the case of waste heat deficiency when variable working condition
Normal operation.4, apparatus of the present invention are owing to liquid refrigerant unevaporated after flash distillation is without condenser heat exchange, decrease condensation
Condensing heat-exchange amount in device, therefore can reduce the size of condenser, save equipment cost under same operating mode.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Following instance
For the present invention is described, but it is not limited to the scope of the present invention.
As it is shown in figure 1, the present invention includes the heat exchanger 1 that at least two is connected, it is positioned at the outlet of the heat exchanger 1 of head end
Being connected by the entrance of pipeline with flash vessel 2, flash vessel 2 has gas outlet 21 and liquid outlet 22, and gas outlet 21 passes through
Pipeline is connected with the entrance of decompressor 3, and the outlet of decompressor 3 is connected by the entrance of pipeline with condenser 4, going out of condenser 4
Mouth is connected with the entrance of the heat exchanger 1 being positioned at end by pipeline；
The liquid outlet of flash vessel 2 is connected with the stream between the heat exchanger 1 of head and end by pipeline.
As it is shown in figure 1, be provided with first pump housing 5 on condenser 4 and the pipeline between the heat exchanger 1 of end；
Second pump housing 6 it is provided with on pipeline between flash vessel 2 and stream.
Present invention additionally comprises the electromotor 7 being connected with decompressor 3, decompressor 3 drives electromotor 7 to generate electricity after acting.
Present invention additionally comprises power plant exhaust mouth 8, power plant exhaust mouth 8 is sequentially communicated each heat exchanger 1, is used for making
Exhaust heat can carry out heat exchange with the organic working medium in each heat exchanger 1.
It should be noted that the heat exchanger 1 in the present invention can be two or more, when heat exchanger 1 quantity is two
Time, the liquid outlet 22 of flash vessel 2 is connected by the stream between pipeline with two heat-exchanger 1, to ensure condensed working medium
Mix with unevaporated liquid working medium again after heating up in advance.
When the quantity of heat exchanger 1 is multiple, the required stream connected of liquid outlet 22 of flash vessel 2 need to be according to condensation
After working medium ramp case in each heat exchanger 1 of end determine, it is ensured that the work after unevaporated liquid working medium and heat exchange
Matter keeps temperature close when mixing.
Operationally, the aerofluxus of dynamical system persistently carries in device air vent 8 present invention, meanwhile, is positioned at flash vessel 2
In organic working medium after flash distillation, the gas working medium of evaporation is entered in decompressor 3 by gas outlet 21 and does work, thus drives
Electromotor 7 generates electricity, and the gas working medium after acting enters after being condensed into liquid in condenser 4 and is pumped into end by second pump housing 6
Heat exchanger 1 preheats.Unevaporated liquid working medium is flowed into the stream between first and last heat exchanger 1 by liquid outlet 22
Lu Zhong, enters in heat exchanger 1 exhaust heat continuing to absorb dynamical system with the working medium after preheating, finally after mixing
It is flow back in flash vessel 2 by the heat exchanger 1 of head end and complete once to circulate, and persistent loop work.
In this cyclic process, exhaust heat is absorbed by organic working medium, and delivery temperature reduces, and organic working medium temperature raises.
In the case of electromotor variable working condition waste heat deficiency, by the gas-liquid separating characteristic of flash vessel 2, liquid working substance be cannot be introduced into
In decompressor 3, thus ensure that the normal operation of system.Avoid the restriction loss of saturated solution after flash separation simultaneously, do not steam
The liquid working substance sent out needs not move through condenser 4 heat release, and this is favorably improved the exhaust heat recovery system thermal efficiency.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. a power plant exhaust residual neat recovering system, it is characterised in that include the heat exchanger that at least two is connected, be positioned at
The described heat exchanger of one end is sequentially connected with flash vessel, decompressor and condenser, described condenser and the institute being positioned at the other end
State heat exchanger to connect；Described flash vessel is also connected with the stream between the described heat exchanger at two ends.
2. power plant exhaust residual neat recovering system as claimed in claim 1, it is characterised in that described flash vessel includes gas
Outlet and liquid outlet, described gas outlet is connected with described decompressor, and described liquid outlet and the described heat being positioned at two ends are handed over
Stream between parallel operation connects.
3. power plant exhaust residual neat recovering system as claimed in claim 1, it is characterised in that at described condenser be positioned at
It is provided with first pump housing between the described heat exchanger of the other end.
4. power plant exhaust residual neat recovering system as claimed in claim 1, it is characterised in that at the liquid of described flash vessel
Exit is provided with second pump housing.
5. the power plant exhaust residual neat recovering system as described in any one of claim 1-4, it is characterised in that be positioned at one end
Described heat exchanger is sequentially connected with flash vessel, decompressor and condenser by pipeline, described condenser be positioned at the other end
Described heat exchanger is connected by pipeline；Described flash vessel and the stream between the described heat exchanger at two ends pass through pipeline
Connect.
6. the power plant exhaust residual neat recovering system as described in any one of claim 1-4, it is characterised in that also include generating
Machine, described electromotor is connected with described decompressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830398.0A CN106286006A (en) | 2016-09-18 | 2016-09-18 | A kind of power plant exhaust residual neat recovering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830398.0A CN106286006A (en) | 2016-09-18 | 2016-09-18 | A kind of power plant exhaust residual neat recovering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286006A true CN106286006A (en) | 2017-01-04 |
Family
ID=57712378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610830398.0A Pending CN106286006A (en) | 2016-09-18 | 2016-09-18 | A kind of power plant exhaust residual neat recovering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538310A (en) * | 2018-12-17 | 2019-03-29 | 中国船舶重工集团公司第七研究所 | A kind of cycle generating system |
| CN112081682A (en) * | 2019-06-13 | 2020-12-15 | 大众汽车有限公司 | Drive unit for a motor vehicle with a cyclic process device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089356A (en) * | 2013-01-22 | 2013-05-08 | 中国科学院广州能源研究所 | Flash evaporation-double work medium combined power generation device |
| US20130341929A1 (en) * | 2012-06-26 | 2013-12-26 | The Regents Of The University Of California | Organic flash cycles for efficient power production |
| CN203452859U (en) * | 2013-07-25 | 2014-02-26 | 北京工业大学 | Single-screw expander medium and low temperature geothermal power generation system based on lubricating oil cycle loop |
| CN105443177A (en) * | 2016-01-07 | 2016-03-30 | 上海维尔泰克螺杆机械有限公司 | Reciprocating engine afterheat recovery system and method |
| CN105736263A (en) * | 2016-04-01 | 2016-07-06 | 上海开山能源装备有限公司 | Geothermal well opening power station system and power generation method thereof |
-
2016
- 2016-09-18 CN CN201610830398.0A patent/CN106286006A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130341929A1 (en) * | 2012-06-26 | 2013-12-26 | The Regents Of The University Of California | Organic flash cycles for efficient power production |
| CN103089356A (en) * | 2013-01-22 | 2013-05-08 | 中国科学院广州能源研究所 | Flash evaporation-double work medium combined power generation device |
| CN203452859U (en) * | 2013-07-25 | 2014-02-26 | 北京工业大学 | Single-screw expander medium and low temperature geothermal power generation system based on lubricating oil cycle loop |
| CN105443177A (en) * | 2016-01-07 | 2016-03-30 | 上海维尔泰克螺杆机械有限公司 | Reciprocating engine afterheat recovery system and method |
| CN105736263A (en) * | 2016-04-01 | 2016-07-06 | 上海开山能源装备有限公司 | Geothermal well opening power station system and power generation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538310A (en) * | 2018-12-17 | 2019-03-29 | 中国船舶重工集团公司第七研究所 | A kind of cycle generating system |
| CN112081682A (en) * | 2019-06-13 | 2020-12-15 | 大众汽车有限公司 | Drive unit for a motor vehicle with a cyclic process device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2551458C2 (en) | Combined heat system with closed loop for recuperation of waste heat and its operating method | |
| CN101408115B (en) | Thermodynamic cycle system suitable for waste heat recovery of engine for automobile | |
| CN102878603B (en) | Gas-steam circulation combined double-stage coupling heat pump heat supply device | |
| CN103726949B (en) | Double-pressure double-loop multistage-expansion internal combustion engine waste heat recovery system | |
| CN103161607A (en) | Combined power generating system based on waste-heat utilization of combustion motor | |
| CN104185717B (en) | For reclaiming the system and method for used heat from double; two thermals source | |
| CN202521938U (en) | Heat pump system and drying system | |
| CN103982259B (en) | A kind of diesel generator exhaust system based on ORC system | |
| CN102797525A (en) | Low-temperature Rankine circulation system employing non-azeotropic mixed working medium variable components | |
| CN102434235A (en) | Kalina cycle generation system adopting ejector | |
| CN105674558A (en) | Gas engine driven steam compressing and absorbing combined type heat pump hot water unit running method | |
| CN1737454A (en) | Combined circulating device capable of realizing absorption type cycle and organic matter Rankine cycle | |
| CN101705849B (en) | Self-coupling cold source heat pump circulating device of low-temperature exhaust heat power generating system in low temperature exhaust steam condensation process | |
| CN101618931A (en) | Mud drying and incinerating integrated system and use method thereof | |
| CN107178934A (en) | A kind of residual heat of air compressor advanced recycling system | |
| CN102828789A (en) | Low-voltage heating equipment of power plant | |
| CN109736963A (en) | A kind of afterheat utilizing system and method for engine of boat and ship | |
| CN105143788B (en) | Combine vapor adsorption and mechanical compress cyclic design | |
| CN1936460A (en) | Two-stage absorbing heat pump of first type | |
| CN201615649U (en) | Oil gas recycling device utilizing steam-ejection refrigeration | |
| CN102155815A (en) | Steam jet refrigeration system based on double-fluid | |
| CN101618932B (en) | Sludge drying-incineration integrated system and use method | |
| CN106286006A (en) | A kind of power plant exhaust residual neat recovering system | |
| CN204693371U (en) | One directly reclaims turbine discharge waste heat and heat-setting water system | |
| CN106016822A (en) | Waste heat and electricity composite drive temperature increasing type heat pump circulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
|
| RJ01 | Rejection of invention patent application after publication |