CN103620167A - Waste heat recovery installation - Google Patents
Waste heat recovery installation Download PDFInfo
- Publication number
- CN103620167A CN103620167A CN201180062001.3A CN201180062001A CN103620167A CN 103620167 A CN103620167 A CN 103620167A CN 201180062001 A CN201180062001 A CN 201180062001A CN 103620167 A CN103620167 A CN 103620167A
- Authority
- CN
- China
- Prior art keywords
- waste heat
- orc
- generator
- decompressor
- cooling medium
- 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
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Classifications
-
- 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
-
- 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
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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)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a waste heat recovery installation for a waste heat source (11), comprising an ORC (Organic-Rankine-Cycle) module that is mounted downstream of said waste heat source, the waste heat source (11) being connected to the heating device of the ORC module, and an expansion engine (4) coupled to a generator (5) for the steam expansion in the ORC module, said expansion engine comprising a magnetic bearing with an associated regulation device and a power supply unit via a DC intermediate circuit of a generator frequency converter. The aim of the invention is to optimize a waste heat recovery installation consisting of an ORC module that is mounted downstream of the waste heat source with respect to design and reliable operating behavior. According to the invention, a unit of expansion engine (4), generator (5) and frequency converter is proposed, which is cooled with refrigerant of the ORC circuit (1). Cool, liquid refrigerant is removed downstream of the feed pump (2) and is fed for cooling purposes to the unit consisting of expansion engine (4), generator (5) and frequency converter.
Description
Technical field
The present invention relates to a kind of according to claim 1 waste heat utilization equipment as described in the preamble.
Background technique
ORC(Organic-Rankine-Cycle: organic Rankine circulation) refer to according to the dynamic cyclic process of the heat of Lang Ken.This means, a working medium is carried out the dynamic state of different heat, to be finally transitioned into again in liquid original state.At this, working medium is brought to higher stress level by pump.Then working medium is preheated to evaporating temperature and be then evaporated.
Therefore relate to a kind of evaporation process, wherein, replace water to evaporate a kind of organic media.The decompressor of steam driven producing, for example turbo machine, piston or auger motor, it again with a generator coupling so that generation current.Process medium arrives in a condenser and the in the situation that of release heat, is recycled there cooling after working machine.Because water is evaporation in the time of 100 ℃ under atmospheric conditions, so the low-level heat of low temperature, for example industrial waste heat or underground heat conventionally can not be for generatings.If people use, there is more lower boiling organic media, can produce Low Temperature Steam so.
Even if for example, when utilizing living beings combination force-Re-coupling, especially, when smaller power,, when traditional biomass combustion technology shows more expensively, ORC equipment is in use favourable.Biomass equipment has the fermentation tank for generation of biogas conventionally, and it must be heated conventionally.
This class waste heat utilization equipment by Li-Re-coupling field open and comprise one with after the BHKW that combines of the ORC that connects, i.e. a central heating station.By DE19541521A1, related to a kind of for improve the equipment of electrical efficiency when discharging special gas by internal-combustion engine, wherein the used heat of internal-combustion engine after be used to further generation current in the energy conversion that connects.Yet only utilize from cooling water circulation and warm from the height of exhaust-heat exchanger at this.
By the known a kind of diesel engine unit being integrated in Lang Ken process of US4901531, wherein, cylinder is used for according to the expansion of Lang Ken and other is as diesel engine work in addition.By US4334409, related to a kind ofly according to the device of Lang Ken process work, wherein working medium is by heat exchanger heats, and air is discharged from having the outlet of the compressor of internally fired machine.
(BHKW) is known usually used as Li-Re-coupling device at central heating station.It referred to herein as electric current dispersion, that mostly utilize by the oil-engine driven used heat with the while and produces equipment.The heat of taking out of by cooling medium in burning is as far as possible fully used to heat suitable object at this.
Especially as the having in ORC Li-Re-Coupling device of waste-heat power generation factory, this machine is achieved, its motor based on having for the waste gas supercharger of supercharging.People have demand to having the machine of very high electrical efficiency thus, and it allows the turbosupercharging of the combustion gas mixt that only heats by compression and cooling realization of refluxing.Conventionally need cooling combusting gas mixture, because otherwise the packing ratio of cylinder is poor.By cooling, the density of the mixture of suction becomes greatly and charging efficiency improves thus.Improve thus power output and the mechanical efficiency of motor.
Manufacturers of engines has stipulated that only the cooling water of about 40 to 50 ℃ flows into temperature for mixture cooling, thus cooling mixture sufficiently.Because this temperature levels is lower, so the heat of taking out from combustion gas is discharged to environment Li-Re-Coupling device up to now, for example, by desk-top cooler.
By DE102005048795B3 known in heating equipment in two steps the working medium in preheating ORC, the process medium in ORC is heated by two heat exchangers that are connected in series after feeding pump, wherein, the first heat exchanger after feeding pump as for be coupled the input first order of Low Temperature Thermal and heat exchanger below as for the high warm second level of the input that is coupled.At this, the mixture of internal-combustion engine is cooling to be passed through a loop and is connected with the first heat exchanger after feeding pump, the cooling heat of the combustion gas mixt wherein, aspirating from combustion motor is used for the process medium of preheating ORC and is coupled and is input in the first heat exchanger as Low Temperature Thermal.The second heating circuit is from the waste gas extract heat of engine cooling water and internal-combustion engine and be connected with the second heat exchanger feeding pump, wherein, from the heat of cool cycles and waste gas for make ORC process medium overheated and vaporization and as warm the second heat exchanger being input to after feeding pump that is coupled of height.
Summary of the invention
Therefore task of the present invention is, the waste heat utilization equipment being comprised of the ORC being connected to after waste heat source in optimization aspect structure and runnability.
It solves by having the feature of claim 1 according to the present invention.Favourable expanded configuration is drawn by dependent claims.
This waste heat utilization equipment especially comprises that one for the decompressor in ORC steam expansion, and this decompressor has one and has the controlling device that sets and one by the magnetic bearing device of the power supply unit of the direct current-intermediate circuit of generator-frequency variator.The feature of waste heat utilization equipment is, is provided with one by the cooling medium unit cooling, that be comprised of decompressor, generator and frequency variator from ORC loop.For this reason, according to the present invention, cooling medium cold, liquid state is removed and is input for the cooling unit being comprised of decompressor, generator and frequency variator after feeding pump.In a kind of particularly advantageous mode of execution, cold, liquid cooling medium is removed after feeding pump and to be directly fed to decompressor cooling for bearing.
In addition according to the present invention, heating, from the unit that formed by decompressor, generator and frequency variator and/or the bearing region of the decompressor cooling medium of discharging at inlet side, be input to condenser.
For the temperature range of cooling cooling medium, for example at input side, be approximately 15 ℃ to 50 ℃ and be approximately 30 ℃ to 80 ℃ at outlet side, wherein, corresponding temperature depends on the actual motion state of parts to be cooled and/or assembly and whole exhaust gas utilization equipment.
Advantageously, be provided with a device for monitoring temperature being associated with higher level's controlling device, this device for monitoring temperature has at parts to be cooled and/or the thermometry position in assembly.This device for monitoring temperature by actual measured temperature and rating value comparison that can be predetermined, analysing and processing it and/or correspondingly optimize and regulate cooling medium consumption.At this, preferably for parts to be cooled and/or assembly setting, there is the regulating loop separating of cooling channel separately or corresponding pipeline.These regulating loops single, that set to each parts to be cooled and/or assembly have valve, preferred solenoid valve, for controlling cooling medium consumption, to optimally deal with the temperature conditions of corresponding this locality.
Structure and the roadability of the waste heat utilization equipment being formed by an ORC who is connected to after waste heat source by the present invention, have been optimized.Waste heat source can be for example central heating station.Industry equipment or boiler equipment.
Waste heat utilization equipment, the unit that is especially comprised of decompressor, generator and frequency variator are by according to measure of the present invention best and meet situation and be cooled.Being on the one hand the precondition of safe, firm equipment operation, is the precondition of the effective and shielded operation of all parts on the other hand, and they have all specific requirements aspect cooling.This not only relates to the static operation of waste heat utilization equipment, and relates to according to used heat impact and starting and roll the modularization to system away from.Especially these states propose a kind of requirement and according to the invention provides safe control for cooling system.
For example in starting period, realize maximum safety in operation and be protected from cooling medium condensation, while occurring in the situation that the acceleration of the decompressor of the generator coupling with motor chamber operation does not have cooling medium to load in ORC loop.Because the cooling medium-shunting arranging in cold side is led by generator unit for this reason, he is absorbed in the heat that motor type run duration produces by mechanical loss there.Then cooling medium flows through the housing of decompressor, discharges there heat and in starting period, is first responsible for thus preheating.
Accompanying drawing explanation
One embodiment of the present of invention are shown accompanying drawing and in the schematic construction of a waste heat utilization equipment shown in unique view, it comprises an ORC who is connected to thereafter.
Embodiment
For ORC move important parts be an ORC loop 1, feeding pump 2, vaporizer 3, one with the decompressor 4 for steam expansion of generator 5 couplings, one for the cooling condenser 6 of the backflow by radiator 7 and for the heat exchanger 8,9 of the working medium in preheating ORC loop 1.
Two heat exchangers 8,9 are in series arranged on after feeding pump 2.At this, feeding pump 2 the first heat exchanger 8 use below act on from the first order of waste heat source 10 coupling input Low Temperature Thermals and ensuing heat exchanger 9 use and act on from the waste heat source 10 high warm second level of coupling input.
For the liquid coolant of cooling decompressor 4-shunt 12 to be branched out and to be first transferred by generator 5.Then the housing of flow of cooling medium overexpansion machine 4, there at the heat outputting and in the normal heat radiation fully of being responsible in service first of the starting period for preheating.Feature is only simple, to illustrate a pipeline layout for this reason, there is no the required branch of leading to single parts or a plurality of parts, index plate, thermometry position, valve and controlling device.
When reaching minimum starting speed, a steam valve 13 of the ingress of decompressor 4 be opened in case steam expansion in ORC and realize the further raising of rotating speed when steam valve 13 is further opened, thereby generator 5 from motor type run transition to normal generator operation.
Around decompressor 4, a bypass being conditioned 14 with at least one throttle valve 15 is set.First this bypass 14 in starting period, be opened when the temperature of working medium is still lower.Working medium is walked around decompressor 4 and is conducted thus.Once ORC loop 1 has reached its specified running state, the throttle valve 15 in bypass 14 cuts out and is arranged on decompressor 4 steam valve 13 above and is opened so.
Claims (7)
1. for the waste heat utilization equipment of waste heat source (10), comprise that is connected to its ORC(organic matter Rankine cycle below), wherein, this waste heat source (10) is connected with the heating equipment of ORC, and have one with generator (5) coupling for the decompressor in ORC steam expansion (4), this decompressor has one and has the controlling device that sets and one by the magnetic bearing device of the power supply unit of the direct current-intermediate circuit of generator-frequency variator, it is characterized in that, be provided with one by cooling from the cooling medium of ORC loop (1), by decompressor (4), the unit that generator (5) and frequency variator form.
2. waste heat utilization equipment according to claim 1, is characterized in that, cooling medium cold, liquid state is removed and is input for the cooling unit being comprised of decompressor (4), generator (5) and frequency variator below at feeding pump (2).
3. waste heat utilization equipment according to claim 1 and 2, is characterized in that, it is cooling for bearing that cooling medium cold, liquid state is removed and is input to decompressor (4) below at feeding pump (2).
4. according to the waste heat utilization equipment described in any one in claims 1 to 3, it is characterized in that, heating, from the unit that formed by decompressor (4), generator (5) and frequency variator and/or the bearing region of decompressor (4) cooling medium of discharging at inlet side, be input to condenser (6).
5. according to the waste heat utilization equipment described in any one in claim 1 to 4, it is characterized in that, be provided with a device for monitoring temperature being associated with higher level's controlling device, this device for monitoring temperature has at parts to be cooled and/or the thermometry position in assembly, this device for monitoring temperature by actual measured temperature with rating value comparison that can be predetermined, analysing and processing and/or regulate cooling medium consumption.
6. according to the waste heat utilization equipment described in any one in claim 1 to 5, it is characterized in that, the regulating loop separating for parts to be cooled and/or assembly setting, to regulate cooling medium consumption.
7. according to the waste heat utilization equipment described in any one in claim 1 to 6, it is characterized in that, in the regulating loop that sets the parts to be cooled to each and/or assembly, be provided for controlling the valve of cooling medium consumption.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010056299.8 | 2010-12-24 | ||
| DE102010056299A DE102010056299A1 (en) | 2010-12-24 | 2010-12-24 | Waste heat utilization system |
| PCT/EP2011/073920 WO2012085264A2 (en) | 2010-12-24 | 2011-12-23 | Waste heat recovery installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103620167A true CN103620167A (en) | 2014-03-05 |
Family
ID=45418691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180062001.3A Pending CN103620167A (en) | 2010-12-24 | 2011-12-23 | Waste heat recovery installation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140013749A1 (en) |
| EP (1) | EP2655813B1 (en) |
| CN (1) | CN103620167A (en) |
| DE (1) | DE102010056299A1 (en) |
| RU (1) | RU2013134398A (en) |
| WO (1) | WO2012085264A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014202487A1 (en) * | 2014-02-12 | 2015-08-13 | Robert Bosch Gmbh | Control unit, heat coupling circuit and method for operating such a heat coupling circuit |
| DE202017107002U1 (en) * | 2017-11-18 | 2019-02-19 | Bdr Thermea Group B.V. | CHP |
| CN109337798A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | Biogas slurry waste heat recycling system and working method |
| CN109401954A (en) * | 2018-12-07 | 2019-03-01 | 黑龙江省能源环境研究院 | Heat-exchange system and working method are heated outside biogas fermentation reactor |
| US11015846B2 (en) | 2018-12-20 | 2021-05-25 | AG Equipment Company | Heat of compression energy recovery system using a high speed generator converter system |
| CN110173313A (en) * | 2019-05-28 | 2019-08-27 | 上海慕帆动力科技有限公司 | High parameter ORC turbine power generation equipment and ORC device applied to engine exhaust heat recycling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523467A1 (en) * | 1991-07-17 | 1993-01-20 | Siemens Aktiengesellschaft | Method of operating a gas and steam turbines plant and plant for carrying out the method |
| US20070007771A1 (en) * | 2003-08-27 | 2007-01-11 | Ttl Dynamics Ltd. | Energy recovery system |
| US20080252077A1 (en) * | 2007-04-16 | 2008-10-16 | Calnetix, Inc. | Generating energy from fluid expansion |
| US20090277400A1 (en) * | 2008-05-06 | 2009-11-12 | Ronald David Conry | Rankine cycle heat recovery methods and devices |
| CN101806232A (en) * | 2010-03-17 | 2010-08-18 | 昆明理工大学 | Multistage evaporation organic Rankine cycle waste heat recovery generation system and method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3035557A (en) * | 1959-07-23 | 1962-05-22 | Sulzer Ag | Method of cooling resuperheaters of a steam plant |
| FR2449780A1 (en) | 1979-02-22 | 1980-09-19 | Semt | METHOD AND APPARATUS FOR RECOVERING THERMAL ENERGY IN A SUPERFUELED INTERNAL COMBUSTION ENGINE |
| US4901531A (en) | 1988-01-29 | 1990-02-20 | Cummins Engine Company, Inc. | Rankine-diesel integrated system |
| NZ248729A (en) * | 1992-10-02 | 1996-03-26 | Ormat Ind Ltd | High pressure geothermal power plant with secondary low pressure turbogenerator |
| DE19541521A1 (en) | 1995-11-08 | 1997-07-31 | Schmeink & Cofreth En Manageme | Electrical efficiency improver for flow of special gases |
| JP4427364B2 (en) * | 2004-03-19 | 2010-03-03 | 株式会社荏原製作所 | Power generator |
| DE102005048795B3 (en) | 2005-10-12 | 2006-12-28 | Köhler & Ziegler Anlagentechnik GmbH | Combined heat and power generation plant, has heat exchanger provided next to feed pumps as stage for coupling low temperature heat, and another heat exchanger provided as another stage for coupling high temperature heat |
| WO2007088194A2 (en) * | 2006-02-02 | 2007-08-09 | Frank Eckert | Organic rankine cycle (orc) turbogenerator |
| US7841306B2 (en) * | 2007-04-16 | 2010-11-30 | Calnetix Power Solutions, Inc. | Recovering heat energy |
| US8839622B2 (en) * | 2007-04-16 | 2014-09-23 | General Electric Company | Fluid flow in a fluid expansion system |
| DE202007016668U1 (en) * | 2007-12-04 | 2008-02-28 | GMK-Gesellschaft für Motoren und Kraftanlagen mbH | Power generation plant according to the ORC principle |
| US8400005B2 (en) * | 2010-05-19 | 2013-03-19 | General Electric Company | Generating energy from fluid expansion |
| US8739538B2 (en) * | 2010-05-28 | 2014-06-03 | General Electric Company | Generating energy from fluid expansion |
-
2010
- 2010-12-24 DE DE102010056299A patent/DE102010056299A1/en not_active Ceased
-
2011
- 2011-12-23 US US13/996,220 patent/US20140013749A1/en not_active Abandoned
- 2011-12-23 RU RU2013134398/06A patent/RU2013134398A/en unknown
- 2011-12-23 EP EP11802103.9A patent/EP2655813B1/en not_active Not-in-force
- 2011-12-23 WO PCT/EP2011/073920 patent/WO2012085264A2/en active Application Filing
- 2011-12-23 CN CN201180062001.3A patent/CN103620167A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523467A1 (en) * | 1991-07-17 | 1993-01-20 | Siemens Aktiengesellschaft | Method of operating a gas and steam turbines plant and plant for carrying out the method |
| US20070007771A1 (en) * | 2003-08-27 | 2007-01-11 | Ttl Dynamics Ltd. | Energy recovery system |
| US20080252077A1 (en) * | 2007-04-16 | 2008-10-16 | Calnetix, Inc. | Generating energy from fluid expansion |
| US20090277400A1 (en) * | 2008-05-06 | 2009-11-12 | Ronald David Conry | Rankine cycle heat recovery methods and devices |
| CN101806232A (en) * | 2010-03-17 | 2010-08-18 | 昆明理工大学 | Multistage evaporation organic Rankine cycle waste heat recovery generation system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2655813A2 (en) | 2013-10-30 |
| DE102010056299A1 (en) | 2012-06-28 |
| WO2012085264A3 (en) | 2013-12-19 |
| US20140013749A1 (en) | 2014-01-16 |
| RU2013134398A (en) | 2015-01-27 |
| WO2012085264A2 (en) | 2012-06-28 |
| EP2655813B1 (en) | 2017-04-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |