CN104487688A - Method for starting combined heat and power units and combined heat and power unit operated according to the method - Google Patents
Method for starting combined heat and power units and combined heat and power unit operated according to the method Download PDFInfo
- Publication number
- CN104487688A CN104487688A CN201380038916.XA CN201380038916A CN104487688A CN 104487688 A CN104487688 A CN 104487688A CN 201380038916 A CN201380038916 A CN 201380038916A CN 104487688 A CN104487688 A CN 104487688A
- Authority
- CN
- China
- Prior art keywords
- cogeneration units
- starting
- heat
- motor
- combined heat
- 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
- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
-
- 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
Landscapes
- 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)
- Stopping Of Electric Motors (AREA)
- Control Of Multiple Motors (AREA)
- Motor And Converter Starters (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a method for starting combined heat and power units (1) after a state of rest, and to a combined heat and power unit (1) operated according to the method, wherein the combined heat and power unit (1) comprises at least one motor and at least one thermal energy accumulator (7), and the at least one motor is started in order to start the combined heat and power unit (1). In this context, according to the invention devices (2) of the combined heat and power unit (1) are heated with thermal energy of the thermal energy accumulator (7). This reduces the wear when starting the combined heat and power unit (1).
Description
Technical field
The present invention relates to a kind of method for starting cogeneration units after a shutdown and a kind of cogeneration units run according to the method; wherein; cogeneration units comprises at least one motor and at least one heat energy accumulator, starts at least one motor to start cogeneration units.
Background technique
There is provided the cogeneration units of electric energy and heat more and more important for supply energy, because it first has good efficiency therefore low consumption and discharge value, second can be used for the fluctuation compensating rechargeable energy supply simultaneously.
Cogeneration units is generally according to the demand that the controlling device of cogeneration units is determined, heat guides ground or electric current to guide ground to run.Generated electricity by heating or make combined heat and power circulate
that is, utilize the heat energy of electric energy and appearance to realize very high efficiency.Known at this, when electrical energy demands is higher than thermal demand, heat intermediate storage residue produced, in corresponding storage, utilizes with electric power in time to make Btu utilization and goes to connect.
Summary of the invention
When utilizing photovoltaic and/or wind-force more and more, the energy of generation in electrical network along with the time fluctuates tempestuously.Be stable, can cogeneration units be switched on and off.This can and must partly carry out with short interval, because there is only limited capacity for the storage of the heat remaining generation.Frequent starting causes the service life reduction of cogeneration units.Therefore, the device of such as cogeneration units as reciprocating engine with oil lubrication for reducing friction and wear.Oil used requires certain operating temperature, reaches required lubrication.If motor starts after work stoppage is greater than one hour, then operating temperature is general too low for good lubrication.Thus when starting cogeneration units, especially cause wearing and tearing to increase when piloting engine, this reduces the life-span again.
The utilizable measure of wearing and tearing of the increase caused for avoiding cold start-up is such as use parking heating or use to start boot especially.When parking heating, by electric heating arrangement warm-up the engine cooling water and therefore warm-up the engine group and lubricant oil.This is known from automotive industry.When using special starting boot, engine cooling water can circulate and start-up part loading point in cooling circuit little especially, until reach the operating temperature of raising and can use the cooling circuit used by standard at full load.But these measures reducing wearing and tearing when starting cogeneration units be expend, cost is large and because the electricity needs such as improved electric heating arrangement is also to bad environmental.
Therefore; technical problem to be solved by this invention is; there is provided a kind of method for starting cogeneration units after a shutdown and a kind of cogeneration units run according to the method, the method and cogeneration units can realize little wearing and tearing with little expending with cost energy-conservationly.Another technical problem is to provide a kind of method, wherein, can start cogeneration units rapidly when minimal wear.
This technical problem is solved by the feature of claim 1 in the method for starting cogeneration units after the shutdown, is solved in the cogeneration units that method described before basis is run by the feature of claim 12.
Obtain from the dependent claims of each correspondence by method for starting cogeneration units after the shutdown of the present invention and the favourable configurations scheme of cogeneration units run according to method.At this, the feature that sovereignty require and the Feature Combination of dependent claims and the feature of each dependent claims combine mutually.
Comprise by the method for starting cogeneration units after the shutdown of the present invention, cogeneration units has at least one motor and at least one heat energy accumulator, and starts at least one motor to start cogeneration units.At this, cogeneration units by device of the present invention by the energy heats of heat energy accumulator.
The heating of the device of cogeneration units causes the wearing and tearing comparing cold start-up or cold starting reduction.Use from the heat energy of heat energy accumulator be energy-conservation, cause little to expend and with low cost.Therefore, need not be heated by electric heating arrangement by electric energy.The less cooling circuit before described from known in the state of the art and expend equipment, and does not need to start boot especially.Wearing and tearing that are less with cogeneration units or that reduce can realize starting fast.
At least one motor as the device of cogeneration units can be heated.Heat such as lubricant oil together at this, compare cold start-up thus and reduce friction and therefore reduce wearing and tearing.Also can be heated as the exhaust gas catalyzer of the device of cogeneration units and/or waste gas heat transmitter.The heating of cogeneration units can be carried out before the starting of at least one motor.Thus, when engine start, this device has arrived or close to operating temperature.Therefore, wearing and tearing are reduced to minimum value, the value namely when hot exposure.
But the heating of cogeneration units also can be carried out when at least one engine start and/or afterwards.This can realize starting fast, wherein, not used for the time of warm-up phase.This heating reduces wearing and tearing without the starting of heating in this case relatively, and wherein, the used heat of cogeneration units itself only very slowly causes the heating of these devices.
At least one motor can be heated before starting, and can make the other device of cogeneration units, especially exhaust gas catalyzer and/or waste gas heat transmitter just arrive operating temperature along with at least one engine start and/or after at least one engine start.This reduces the thermal efficiency to be applied and heat when only there is little heat energy accumulator and being available.Thus, preheating the parts of the greatest wear when cold start-up can be had, that is motor and effectively utilize the heat energy of storage especially.
Heat energy accumulator can pass through closed-loop path, is connected with the device to be heated of cogeneration units especially by with the loop of fluid filling.Thus, heat can be delivered to device to be heated from heat energy accumulator effectively by simple structure.The fluid circuit included is conducive to environment, because can not to be discharged in environment for the medium of heat delivery and must to be such as recovered, or to bad environmental.
The heat energy of heat energy accumulator can with the form of the temperature of especially relative ambient temperature increase by liquid, and especially water or oil store.These liquid have higher thermal capacity and are therefore well suited for storing and carrying a lot of heat.
Liquid from heat energy accumulator can be pumped to the one or more by the device heated of cogeneration units by least one pump.Pump can realize liquid and especially simply, effectively carry.
At least one pump can be have variable throughput direction pump or comprise this pump.But also can comprise at least two pumps, wherein, at least two pump have contrary throughput direction.Guarantee thus, in the work of cogeneration units, superfluous heat or heat energy can be transported to energy accumulator, be stored and can be called again when cogeneration units is started or be delivered to device to be heated from energy accumulator at this.
Run according to preceding method by cogeneration units of the present invention.
Advantage before the advantage relevant with cogeneration units is similar in the method for starting cogeneration units after the shutdown.
Accompanying drawing explanation
The following preferred form of implementation of the present invention setting forth the advantageous extension design had according to the feature of dependent claims with reference to the accompanying drawings further, but be not limited thereto.In the accompanying drawings:
Fig. 1 is the schematic diagram by cogeneration units 1 of the present invention, has the heat energy accumulator 7 of the device 2 for heating cogeneration units 1, and
Fig. 2 is the schematic diagram of the alternative by cogeneration units 1 of the present invention of Fig. 1, and it has two pumps 10 with contrary throughput direction to substitute the pump 9 with variable feeding direction.
Embodiment
In FIG, be the schematic diagram by cogeneration units 1 of the present invention, this cogeneration units 1 is according to pressing method work of the present invention.Cogeneration units 1 comprises the device 2 (such as motor) that chemical energy is converted to mechanical energy and is the device 2 (as generator) of electric energy by changes mechanical energy.
In order to simplify, the schematic diagram of cogeneration units 1 is only shown in the accompanying drawings greatly simplifiedly.According to prior art, the different operating principle of known cogeneration units and structure.
Be stored in fuel oil in fuel tank 3 modulated or input motor controllably by pipeline, pump, valve etc.The air 4 with oxygen also inputs motor and for non-combusted fuels within the engine, wherein, forms the waste gas 5 be discharged in environment.When burning, produce mechanical energy, this mechanical energy such as inputs generator by axle, in this generator, mechanical energy is converted to electric energy.Feed electric energy in electrical network 6.
During this external oil inflame, when mechanical energy is converted to electric energy, and by friction generates heat.When generating heat generating (after this, cogeneration units work), not only use electric energy, and the heat such as industrial process or heating object can be utilized.For this reason, the device 2 of cogeneration units 1 is connected on cooling circuit 8.The heat occurred with used heat in cogeneration units 1 is transported to heat user by cooling circuit 8.Utilizing the moment to need heat because general not direct and be supplied to user to incite somebody to action more continuous print heat energy or heat, heat energy intermediate storage is in energy accumulator 7.
Heat can be extracted by the loop with the entrance and exit 12,11 leading to energy accumulator 7 and it is supplied to user or customer from energy accumulator 7.In order to realize simple conveying and the storage of good heat, generally by having the fluid of higher thermal capacity, especially liquid such as water or oil absorbs and stores used heat.Used heat at least one device 2, motor such as, is delivered to thermomechanics storage 7 by absorption of fluids by closed-loop path 8.Heat is stored in energy accumulator 7.In order to fluid can be carried in loop 8, use and there is the pump 9 of alterable throughput direction or there is the pump 10 of contrary throughput direction.The latter is expressed as alternative embodiment in fig. 2.
Pump 9 and/or 10 can realize the conveying of fluid, and the heat therefore stored not only separating device 2 enter storage 7, and be also oppositely transported to device 2 from storage 7 particularly by the change of throughput direction.Therefore, it is possible to realize by method of the present invention, wherein, at least one device 2 of the thermodynamic energy input cogeneration units 1 of the storage of energy accumulator 7.Thus, can when cold start-up, such as, after longer dead time, wherein, this device 2 is cooled at the working temperature, and device is by being heated from the heat energy of storage 7 or the heat of storage.Can device 2 be preheating near operating temperature or operating temperature and/or make device 2 arrive operating temperature quickly at work.This advantage described before having.Therefore, the mode that the wearing and tearing of device 2 such as motor or generator are significantly reduced is, heats such as lubricant oil and this lubricant oil is more easily assigned with due to less viscosity, and therefore friction is reduced and causes less wearing and tearing.Can save such as by environment more harmful and consume the heating of electric heating arrangement of electric energy.Can save equally as that expend, that cost the is high heating circuit reduced represented by dashed line in the accompanying drawings.
The embodiment before described can continue ground and combines with from embodiment well known in the prior art in front and back mutually.Therefore, can serviceability temperature sensor and in the accompanying drawings in order to simplify unshowned control gear for regulation and control process.Fluid circuit and heat consumer can differently, design according to corresponding demand.Replacing liquid also can use gas or mixture as fluid.The device of cogeneration units can design different.Device for generation of used heat can be such as different or inconsistent from the device for the waste heat by heat energy or storage.
Claims (12)
1. one kind for starting the method for cogeneration units (1) after a shutdown; wherein; described cogeneration units (1) comprises at least one motor and at least one heat energy accumulator (7); start at least one motor described to start described cogeneration units (1); it is characterized in that, by the device (2) of cogeneration units (1) described in the energy heats of described heat energy accumulator (7).
2., by method according to claim 1, it is characterized in that, at least one motor described is heated as the device (2) of described cogeneration units (1).
3. by the method one of aforementioned claim described, it is characterized in that, exhaust gas catalyzer and/or waste gas heat transmitter are heated as the device (2) of described cogeneration units (1).
4., by the method that one of aforementioned claim is described, it is characterized in that, the heating of the device (2) of described cogeneration units (1) was carried out before the starting of at least one motor described.
5. by the method that one of aforementioned claim is described, it is characterized in that, the heating of the device (2) of described cogeneration units (1) is carried out when at least one engine start described and/or after starting.
6. by the method that one of aforementioned claim is described, it is characterized in that, at least one motor described was heated before starting, and make the device (2) of other described cogeneration units (2), especially described exhaust gas catalyzer and/or waste gas heat transmitter are along with the starting of at least one motor described and/or just arrive operating temperature after the starting of at least one motor described.
7. by the method that one of aforementioned claim is described, it is characterized in that, described heat energy accumulator (7), by closed-loop path (8), is connected especially by with the loop of fluid filling (8) device (2) with described cogeneration units (1) to be heated.
8. by the method one of aforementioned claim described, it is characterized in that, the temperature form that the heat energy of described heat energy accumulator (7) especially increases with relative ambient temperature is by liquid, and especially water or oil store.
9. by method according to claim 8, it is characterized in that, liquid from described heat energy accumulator (7) is pumped to by the device (2) of the one or more described cogeneration units (1) heated by least one pump (9,10).
10., by method according to claim 9, it is characterized in that, at least one pump described is or comprises the pump (9) with variable throughput direction.
11. by method according to claim 9, and it is characterized in that, comprise at least two pumps (10), wherein, described at least two pumps (10) have contrary throughput direction.
12. 1 kinds of cogeneration units (1), this cogeneration units is run according to the method one of claim 1 to 11 Suo Shu.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012215784.0 | 2012-09-06 | ||
| DE102012215784.0A DE102012215784A1 (en) | 2012-09-06 | 2012-09-06 | Method for starting cogeneration and cogeneration plant operated by the method |
| PCT/EP2013/067803 WO2014037262A2 (en) | 2012-09-06 | 2013-08-28 | Method for starting combined heat and power units and combined heat and power unit operated according to the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104487688A true CN104487688A (en) | 2015-04-01 |
Family
ID=49111175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380038916.XA Pending CN104487688A (en) | 2012-09-06 | 2013-08-28 | Method for starting combined heat and power units and combined heat and power unit operated according to the method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104487688A (en) |
| DE (1) | DE102012215784A1 (en) |
| WO (1) | WO2014037262A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382154A (en) * | 2016-11-04 | 2017-02-08 | 力帆实业(集团)股份有限公司 | Motorcycle cooling system and engine cooling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332319A (en) * | 2000-07-10 | 2002-01-23 | 丰田自动车株式会社 | Internal combustion engine with heat accumulator |
| US6435420B1 (en) * | 1999-11-01 | 2002-08-20 | Honda Giken Kogyo Kabushiki Kaisha | Engine waste heat recovering apparatus |
| CN101598061A (en) * | 2008-06-03 | 2009-12-09 | 刘传鹏 | Engine-cooling system |
| CN101994531A (en) * | 2009-08-18 | 2011-03-30 | 刘绍允 | Closed circulatory phase-change heat supply system for heat and power cogeneration |
| CN201843651U (en) * | 2009-09-07 | 2011-05-25 | 福建凤竹集团有限公司 | Afterheat utilizing system of cold circulating water in steam turbine |
| EP2381083A1 (en) * | 2010-04-22 | 2011-10-26 | C.R.F. Società Consortile per Azioni | Unit for recovering and converting the thermal energy of the exhaust gases of an internal combustion engine of a vehicle |
| GB2485761A (en) * | 2010-10-29 | 2012-05-30 | Tacoma Properties Llc | Micro combined heat and power unit and fuel burner with heat exchange systems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10339564A1 (en) * | 2002-08-28 | 2004-03-11 | RÄSS, Martin | Heating system for building, incorporates motor-generator unit with generator connected to battery via intermediate circuit and includes heat exchanger |
| DE102004052107B4 (en) * | 2004-10-26 | 2007-03-15 | J. Eberspächer GmbH & Co. KG | Exhaust system and associated operating method |
-
2012
- 2012-09-06 DE DE102012215784.0A patent/DE102012215784A1/en not_active Ceased
-
2013
- 2013-08-28 WO PCT/EP2013/067803 patent/WO2014037262A2/en active Application Filing
- 2013-08-28 CN CN201380038916.XA patent/CN104487688A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6435420B1 (en) * | 1999-11-01 | 2002-08-20 | Honda Giken Kogyo Kabushiki Kaisha | Engine waste heat recovering apparatus |
| CN1332319A (en) * | 2000-07-10 | 2002-01-23 | 丰田自动车株式会社 | Internal combustion engine with heat accumulator |
| CN101598061A (en) * | 2008-06-03 | 2009-12-09 | 刘传鹏 | Engine-cooling system |
| CN101994531A (en) * | 2009-08-18 | 2011-03-30 | 刘绍允 | Closed circulatory phase-change heat supply system for heat and power cogeneration |
| CN201843651U (en) * | 2009-09-07 | 2011-05-25 | 福建凤竹集团有限公司 | Afterheat utilizing system of cold circulating water in steam turbine |
| EP2381083A1 (en) * | 2010-04-22 | 2011-10-26 | C.R.F. Società Consortile per Azioni | Unit for recovering and converting the thermal energy of the exhaust gases of an internal combustion engine of a vehicle |
| GB2485761A (en) * | 2010-10-29 | 2012-05-30 | Tacoma Properties Llc | Micro combined heat and power unit and fuel burner with heat exchange systems |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382154A (en) * | 2016-11-04 | 2017-02-08 | 力帆实业(集团)股份有限公司 | Motorcycle cooling system and engine cooling method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014037262A2 (en) | 2014-03-13 |
| DE102012215784A1 (en) | 2014-05-15 |
| WO2014037262A3 (en) | 2014-05-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |