CN101400951B - Cogeneration system - Google Patents

Cogeneration system Download PDF

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Publication number
CN101400951B
CN101400951B CN2007800089850A CN200780008985A CN101400951B CN 101400951 B CN101400951 B CN 101400951B CN 2007800089850 A CN2007800089850 A CN 2007800089850A CN 200780008985 A CN200780008985 A CN 200780008985A CN 101400951 B CN101400951 B CN 101400951B
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China
Prior art keywords
aforementioned
water
heat
operation mode
electric power
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Expired - Fee Related
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CN2007800089850A
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Chinese (zh)
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CN101400951A (en
Inventor
井深丈
樋渡学
户塚俊吾
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Eneos Corp
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Nippon Oil Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/30—Fuel cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/70—Electric generators driven by internal combustion engines [ICE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
    • F24D2103/13—Small-scale CHP systems characterised by their heat recovery units characterised by their heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
    • F24D2103/17—Storage tanks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/40—Combination of fuel cells with other energy production systems
    • H01M2250/405—Cogeneration of heat or hot water
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/10—Applications of fuel cells in buildings
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A cogeneration system (1) comprising an electricity/heat generator (11) generating electric power and heat, a hot water storage tank (21) storing warmed water, an operation mode switching means (100) for switching a prediction operation mode for controlling electric power and heat generated from the electricity/heat generator based on predicted values obtained according to the prestored electric energy and heat in a predetermined time band, and a nonprediction operation mode for controlling start/stop of the electricity/heat generator depending on the temperature conditions of water stored in the hot water storage tank, and a start/stop control means (105) for starting or stopping the electricity/heat generator depending on the conditions of water stored in the hot water storage tank after switching is made to the nonprediction operation mode by the operation mode switching means.

Description

Cogeneration system
Technical field
The invention relates to cogeneration system.
Background technology
Cogeneration system possesses the electric heating generation device that produces electric power and heat.What the electric heating generation device can be produced supplies power to electric equipment, and the heat that will produce along with generating is supplied to the hot equipment of hot water supplier, warming machine etc.When using cogeneration system, can effectively utilize the heat that produces along with generating, so can seek to be reduced in the energy cost that imports the place.
In recent years, be to improve the efficiency of energy utilization of cogeneration system, once the someone inquired into ex ante forecasting electric power amount and heat and according to electric power amount and the heat predicted, running electric heating generation device.For example, in patent documentation 1, once put down in writing a kind of cogeneration system that can be turned round according to predicting the running model of economy in the supply of electric power that imports the place and heat.
Patent documentation 1: TOHKEMY 2005-283028 communique
Summary of the invention
But, in prediction, be difficult to deal with rightly the significantly variation (for example climatic conditions change etc.) of natural environment or the significantly variation (for example not existing for a long time) of living environment according to the measurement result in past of being put down in writing as patent documentation 1.This situation even if continue to carry out running according to prediction, also has the possibility of the running that is difficult to keep economy.
The present invention designs for eliminating the problems referred to above, and its purpose is to provide the cogeneration system that can implement the running of economy according to present situation.
For reaching this kind purpose, cogeneration system of the present invention is characterised in that and comprises: the electric heating generation device produces electric power and heat; The hot-water storage groove is stored and is reclaimed the heat that is produced by the electric heating generation device and the water of being heated; A plurality of thermometers are located in the hot-water storage groove, and instrumentation is stored in the temperature of the water in the hot-water storage groove; The operation mode switching mechanism, switch according to the electrification amount of utilizing the specific period that stores in advance and use the electric power amount of the specific period that heat calculates and the prediction operation mode of electric power that the predicted value of heat and controlling is produced by the electric heating generation device and heat, and corresponding to the startup of the temperature regime control electric heating generation device that is stored in the water in the hot-water storage and the nonanticipating operation mode that stops; And startup stop control mechanism, after switching to the nonanticipating operation mode by the operation mode switching mechanism, by the 1st temperature of the 1st thermometer institute instrumentation that is contained in a plurality of thermometers situation less than predetermined specified temp, the electric heating generation device is started, when being contained in a plurality of thermometers and being arranged at than the 2nd temperature of the 2nd thermometer institute instrumentation below the 1st thermometer, the electric heating generation device is stopped to the situation more than the predetermined specified temp.
In addition, cogeneration system of the present invention is characterised in that and comprises: the electric heating generation device produces electric power and heat; The hot-water storage groove is stored and is reclaimed the heat that is produced by the electric heating generation device and the water of being heated; The operation mode switching mechanism, switch according to the electrification amount of utilizing the specific period that stores in advance and use the electric power amount of the specific period that heat calculates and the prediction operation mode of electric power that the predicted value of heat and controlling is produced by the electric heating generation device and heat, and corresponding to the startup of the temperature regime control electric heating generation device that is stored in the water in the hot-water storage groove and the nonanticipating operation mode that stops; And start stop control mechanism, after switching to the nonanticipating operation mode by the operation mode switching mechanism, the ratio that is stored in the water to specified temp of being heated in the water of hot-water storage groove makes the startup of electric heating generation device for less than the situation of the 1st threshold value the time; In the water that is stored in the hot-water storage groove, heated the ratio of the water to specified temp for greater than the situation more than the 2nd threshold value of the 1st threshold value the time, the electric heating generation device is stopped.
These cogeneration systems comprise the prediction operation mode that switches according to the data that store in advance, with operation mode switching mechanism according to the nonanticipating operation mode of the temperature regime that is stored in the water in the hot-water storage groove.Therefore, even under the situation of the situation of sinking into to be difficult to predict, also can implement the running of economy according to present situation.In addition, in the nonanticipating operation mode, in the 1st temperature of the 1st thermometer institute instrumentation situation less than specified temp, or the water to specified temp of heating is less than the situation of the 1st threshold value, can start the electric heating generation device, avoid the state of affairs of the warm water deficiency in the hot-water storage groove.On the other hand, by be positioned at than the 1st thermometer more the 2nd temperature of the 2nd thermometer institute instrumentation of below at the situation more than the specified temp or the water to specified temp of heating greater than the situation more than the 2nd threshold value of the 1st threshold value, the electric heating generation device stopped and suppressing to produce useless heat.So, in the nonanticipating operation mode of these cogeneration systems, can realize the running of economy according to present situation.
Best, starting stop control mechanism is halted state at the electric heating generation device, and the 1st temperature is that specified temp is when above, when making the situation of water consumption, the electric heating generation device is started according to the water yield more than the specified temp of trying to achieve less than the prediction of calculating according to the predicted value of the electric power amount of specific period and heat by the temperature of a plurality of thermometer institute instrumentation.Perhaps, best, starting stop control mechanism and be at the electric heating generation device is that the ratio of the halted state and the water to specified temp of being heated is that the 1st threshold value is when above, the water yield more than the 1st threshold value is the situation that makes water consumption less than the prediction that the predicted value of the heat of specific period of foundation is calculated, and the electric heating generation device is started.Even if be stored in the amount of the warm water of hot-water storage groove present behaviour in service is belonged to fully, also existing needs the more situation of the warm water of volume thereafter.Under the situation that predicts this kind situation, can make the startup of electric heating generation device and it is under the non-stop always state, the state of affairs that suppresses the warm water deficiency takes place.
Best, starting stop control mechanism and be at the electric heating generation device is that halted state and the 1st temperature are during less than specified temp, the electric power amount that current point uses be during less than the situation of the minimum energy output of predetermined electric heating generation device, the halted state of continuation electric heating generation device.Perhaps, best, starting stop control mechanism and be at the electric heating generation device is that the ratio of the halted state and the water to specified temp of being heated is during less than the 1st threshold value, the electric power amount that current point uses be during less than the situation of the minimum energy output of predetermined electric heating generation device, the halted state of continuation electric heating generation device.Thus, be less than the situation of the minimum energy output of electric heating generation device, can suppress invalidly to generate electricity at electrification.
Best, the operation mode switching mechanism is after switching to the prediction operation mode, the predicted value of the electric power amount of specific period and in the specific period electric power amount coefficient correlation between the actual electric power amount of using, and heat in the predicted value of the heat of specific period and actual use in the specific period between the heat coefficient correlation and when being situation less than specific coefficient correlation threshold value, switch to the nonanticipating operation mode.
Electric power amount coefficient correlation and heat coefficient correlation and be the precision of prediction of expression prediction operation mode, so can be according to electric power amount coefficient correlation and heat coefficient correlation and the reduction judgement precision of prediction.In above-mentioned cogeneration system, by situation electric power amount coefficient correlation and heat coefficient correlation and the reduction judgement precision of prediction, promptly identify between the use amount of actual use amount and prediction the situation that deviates from is arranged, can switch to the nonanticipating operation mode, so can keep the running of economy well.
According to the present invention, can provide the cogeneration system of implementing the running of economy according to present situation.
Description of drawings
Fig. 1 is the structure chart of the cogeneration system of expression execution mode.
Fig. 2 is the FBD (function block diagram) of operation control section of the cogeneration system of execution mode.
Fig. 3 is the per 1 hour electrification amount and the tables of data of prediction electric power amount.
Fig. 4 is the flow chart of action of the cogeneration system of expression execution mode.
Fig. 5 is the flow chart of the action handled of the startup of the cogeneration system of expression execution mode.
Fig. 6 is the flow chart that continues the action that stops to handle of the cogeneration system of expression execution mode.
Symbol description
1 cogeneration system
2A, 2B recuperation of heat pipe arrangement
3 go out the hot water pipe arrangement
10 steam-electric accreting unit
11 electric heating generation devices
12 heat exchangers
13 operation control section
14,51 power lines
20 hot-water storage unit
21 hot-water storage grooves
22 the 1st go out the hot water pipe arrangement
23 pipe arrangements
24 water purification pipe arrangements
25 triple valves
26 the 2nd go out the hot water pipe arrangement
30 hot water suppliers
40 register systems
41 galvanometer
42 flowmeters
43,44 thermometers
50 commercial power systems
60 water systems
61 running water pipes
The EI electric equipment
The hot equipment of HI
100 operation mode switching parts
101 electric heating prediction section
102 electric heating control parts
103 temperature obtaining sections
104 temperature judging parts
105 startups stop control part
106 startups stop judging part
107 have or not prediction to make the water consumption judging part
108 electric power judging parts
Embodiment
Below, with reference to accompanying drawing, describe relevant preferred implementation of the present invention in detail.In addition, in explanation, to same key element or have the key element of same function, use prosign, and the repetitive description thereof will be omitted.In addition, below so-called " water " in the explanation is not only to refer to cold water as water purification, can comprise the water (hot water) that the high warm water of all temperature etc. is in liquid condition.
Fig. 1 is the structure chart of the cogeneration system 1 of expression execution mode.As shown in Figure 1, cogeneration system 1 is to comprise steam-electric accreting unit 10, hot-water storage unit 20, hot water supplier 30, register system 40.Cogeneration system 1 is to be connected in commercial power system 50 and water system 60.
Cogeneration system 1 be with by steam-electric accreting unit 10 generating supply power to electric equipment EI, and will be stored in hot-water storage unit 20 and be supplied to hot equipment HI along with the water that heat heated that generating produces.
Steam-electric accreting unit 10 has electric heating generation device 11, heat exchanger 12 and operation control section 13.Electric heating generation device 11 is the devices that produce electric power and hot both sides, for example is the combination of fuel cell or internal combustion engine (for example gas engine) Blast Furnace Top Gas Recovery Turbine Unit (TRT) that internal combustion engine drove therewith or the combination of external-combustion engine and Blast Furnace Top Gas Recovery Turbine Unit (TRT) etc.Electric heating generation device 11 is to export the electric power of its generation to electric equipment EI via power line 14, and the thermal output that will produce along with generating is to heat exchanger 12.
Power line 14 is to be connected with the power line 51 of carrying the electric power of being supplied by commercial power system 50, not only at the electric power of electric heating generation device 11 generations, also is supplied to electric equipment EI simultaneously from the electric power of commercial power system 50.
With power line 14 that power line 51 is connected on, galvanometer 41 is set.Galvanometer 41 is that instrumentation is supplied to the electric power of electric equipment EI as current value by electric heating generation device 11 and commercial power system 50.
Heat exchanger 12 is to reclaim the heat that electric heating generation device 11 produces, and heat is conveyed to makes the water of water in recuperation of heat usefulness pipe arrangement 2A, the 2B of 20 circulations of heat exchanger 12 and hot-water storage unit.More specifically, heat exchanger 12 is that heat is conveyed to the recuperation of heat of being flowed out by hot-water storage unit 20 with the water in the pipe arrangement 2B, and the recuperation of heat that water after being passed on by heat is flow to flow into hot-water storage unit 20 is with in the pipe arrangement 2A.Operation control section 13 is mechanisms of the running usefulness of control electric heating generation device 11, controls the mechanism of the running usefulness of electric heating generation device 11 according to the predicted value of electric power amount described later and heat.
Hot-water storage unit 20 has hot-water storage groove 21 and triple valve 25, and these are to go out hot water via the 1st to go out hot water with pipe arrangement 22, pipe arrangement 23, water purification with pipe arrangement 24 and the 2nd and be connected to hot water supplier 30 with pipe arrangement 26.Hot-water storage groove 21 is store to reclaim the heat that electric heating generation device 11 produces and the tank of the water of being heated, and stores the water after being passed on by heat in heat exchanger 12.
In hot-water storage groove 21, mode is provided with a plurality of (in the present embodiment, being 5) thermometer TM1～TM5 to be configured to uniformly-spaced to the above-below direction of this hot-water storage groove 21.Each thermometer TM1～TM5 is set at the centre position of this each regional above-below direction with respect to hot-water storage groove 21 each zone at above-below direction 5 gained such as branch such as grade.Thermometer TM1～TM5 is used for the temperature that instrumentation is stored in the water in the hot-water storage groove 21.
For a plurality of thermometer TM1～TM5, set the 1st and the 2nd thermometer.Wherein, the 2nd thermometer be positioned at than the 1st thermometer more the below.For example, design temperature meter TM2 is as the 1st thermometer, and design temperature meter TM5 is as the 2nd thermometer.
Hot-water storage groove 21 is that top is connected with pipe arrangement 2A with recuperation of heat, presents the structure that can make the water inflow after heat exchanger 12 is passed on by heat via recuperation of heat with pipe arrangement 2A.Hot-water storage groove 21 is that the bottom is connected with pipe arrangement 2B with recuperation of heat, presents the water that can make the bottom that is stored in hot-water storage groove 21 and flows out, and makes the structure of its inflow heat exchanger 12.
Hot-water storage groove 21 is that top further goes out hot water and is connected with pipe arrangement 22 with the 1st, presents the structure that the hot water that can make the top that is stored in hot-water storage groove 21 flows out.Hot-water storage groove 21 is that the bottom is connected with pipe arrangement 23, and presenting can be by the structure of the underfeed water purification of hot-water storage groove 21.Water purification is to flow into pipe arrangement 23 by water purification with pipe arrangement 24.
Triple valve 25 is to present to make to go out water that hot water flows into the both sides of pipe arrangement 24 with pipe arrangement 22 and water purification by the 1st and flow out to the 2nd and go out the structure of hot water with pipe arrangement 26.Water purification is with water system 60 by commercialization the running water pipe 61 that water purification is supplied to hot-water storage unit 20 to be connected with pipe arrangement 24.Running water pipe 61 is provided with thermometer 43, is used for the temperature that instrumentation is supplied to the water purification of hot-water storage unit 20.
The 2nd to go out hot water be to make the 1st to go out the mixed water of both sides of the water that water that hot water transports with pipe arrangement 22 and water purification transport with pipe arrangement 24 or the water of one side flows out to hot water supplier 30 with pipe arrangement 26.Go out hot water with connection traffic meter 42 on the pipe arrangement 26 the 2nd, be used for the flow that instrumentation flows into the water of hot water supplier 30.
Hot water supplier 30 is will go out hot water by the 2nd with pipe arrangement 3 and be supplied to hot equipment HI with the water that pipe arrangement 26 flows into via going out hot water.Hot water supplier 30 can heat according to need by the 2nd and goes out the water that hot water flows into pipe arrangement 26.Go out hot water and be provided with thermometer 44 with pipe arrangement 3.Thermometer 44 is to be used for instrumentation is supplied to the water of hot equipment HI by hot water supplier 30 temperature.
Register system 40 is and measured value, the measured value of flowmeter 42, the measured value of thermometer 43 and the measured value of thermometer 44 of measuring day and the while period of mensuration recording galvanometer 41.The measured value of the measured value of the measured value of the measured value of galvanometer 41, flowmeter 42, thermometer 43 and thermometer 44 can be altered to required form when writing down according to need and be recorded.
That is, register system 40 for example is to calculate the electric power amount of day part according to the measured value of galvanometer 41, and it is recorded in the built-in hard disk with measuring day and minute.In addition, register system 40 for example is the heat of calculating day part according to the measured value of the measured value of the measured value of flowmeter 42, thermometer 43 and thermometer 44, and it is recorded in the built-in hard disk with measuring day and minute.
Secondly, the function of relevant operation control section 13 is described with reference to Fig. 2.Fig. 2 is the functional structure chart of expression operation control section 13.As shown in Figure 2, operation control section 13 has operation mode switching part (operation mode switching mechanism) 100, electric heating prediction section 101, electric heating control part 102, temperature obtaining section 103, temperature judging part 104, starts and stop control part (startup stop control mechanism) 105, start and stop judging part 106, have or not prediction to make water consumption judging part 107 and electric power judging part 108.
Operation mode switching part 100 is used for handoff predictions operation mode and nonanticipating operation mode.What is called prediction operation mode is electrification amount and the electric power amount of the specific period that the use heat is calculated and the predicted value of heat that foundation is utilized the specific period that stores in advance, and control is by the electric power of electric heating generation device generation and the pattern of heat.The prediction operation mode is realized by electric heating prediction section 101 and electric heating control part 102.
On the other hand, so-called nonanticipating operation mode is according to the temperature regime that is stored in the water in the hot-water storage groove, the startup of control electric heating generation device and the mode that stops.The nonanticipating operation mode mainly is by temperature obtaining section 103, temperature judging part 104, starts and stop control part (startup stop control mechanism) 105, start and stop judging part 106, have or not prediction that water consumption judging part 107 and electric power judging part 108 are realized.
Operation mode switching part 100 both can also can be switched by operation control section 13 according to predetermined conditions by the manual switchover pattern.In the present embodiment, illustrate relevant operation mode switching part 100 for example with the predicted value of specific period and in the specific period coefficient correlation between the actual instrumentation Value Data that uses be the situation of condition switch mode.
Specifically describe with relevant be that coefficient is condition and the situation of switch mode.Operation mode switching part 100 is after switching to the prediction operation mode, obtains electric power amount coefficient correlation between the predicted value of the electric power amount of specific period and the actual electric power amount of using in the specific period, and the heat coefficient correlation between the heat of the predicted value of the heat of specific period and reality use in the specific period.Electric power amount coefficient R E and heat coefficient R H all can utilize following formula (1) to try to achieve:
[several 1]
R = 1 N Σ i = 1 N ( Xi - X ‾ ) ( Yi - Y ‾ ) 1 N Σ i = 1 N ( Xi - X ‾ ) 2 1 N Σ i = 1 N ( Yi - Y ‾ ) 2 · · · ( 1 )
R... electric power amount coefficient R EOr heat coefficient R H
X i... each specific period each prediction electric power amount or the prediction heat
X -(being to enclose a whippletree in " X " top to be represented in formula (1) wherein)
... the mean value of prediction electric power amount or the mean value of prediction heat
Y i... each specific period each the electrification amount or use heat
Y -(being to enclose a whippletree in " Y " top to be represented in formula (1) wherein)
... the mean value of the mean value of electrification amount or use heat
N... data number
Operation mode switching part 100 is the electric power amount coefficient R of will be tried to achieve EWith the heat coefficient R HAddition and obtain they and, and judge it and whether less than coefficient correlation threshold value (for example 1.0).Operation mode switching part 100 is after switching to the prediction operation mode, electric power amount coefficient R EWith the heat coefficient R HAnd less than the situation of coefficient correlation threshold value, switch to the nonanticipating operation mode.
Table shown in Figure 3 is that the electric power amount of the electric power amount of using in preceding 1 day per 1 hour (the preceding 1 day electrification amount (kWH) of forecasting object day) of forecasting object day, prediction in per 1 hour (prediction electric power amount (kWH)) and the data of the per 1 hour actual electric power amount of using (actual electrification amount (kWH)) are represented each part (24 hours parts) on the 1st respectively.At this, with the preceding 1 day data of forecasting object day as predicted value.Formula (1) is applicable to the situation of these data, electric power amount coefficient R EShow and be about 0.39.
Electric heating prediction section 101 is calculated the required electric power amount of specific period (being the forecasting object period) of forecasting object day and the predicted value of heat.As Forecasting Methodology, for example, also the electrification amount of the forecasting object time between one-period in past and the data of use heat on average can be calculated predicted value respectively.
Or for example, also can and use in the heat preceding 1 day of forecasting object day extremely preceding 7 days electrification amount, make to preceding 1 day and preceding 7 days electrification amount and use the weight coefficient of heat overweight to its some other time the electrification amount and use the weight coefficient of heat after, on this basis to the electrification amount of preceding 1 day of forecasting object day each extremely preceding 7 days day and each amount of use heat, multiply by weight coefficient corresponding to each electrification amount and use heat, and respectively be worth addition by what this multiplying was obtained, to calculate predicted value.In addition, so-called weight coefficient is meant the coefficient of each object data of expression to the shared ratio of predicted value.That is, represent the coefficient of each object data to the effect that predicted value caused.
Perhaps also can calculate the electric power amount of preceding 1 day forecasting object period of forecasting object day and heat respectively as predicted value.
It is the electric power amount calculated according to electric heating prediction section 101 and the predicted value of heat that electric heating produces control part 102, is controlled at electric power and heat that electric heating generation device 11 produces.
Temperature obtaining section 103 is the temperature T 1～T5 that are used to obtain by the water in the hot-water storage groove that is located at each the thermometer TM1～TM5 institute instrumentation in the hot-water storage groove 21.At this, suppose that the temperature by the 1st thermometer institute instrumentation is the 1st temperature, be the 2nd temperature by the temperature of the 2nd thermometer institute instrumentation.Therefore, for example respectively under design temperature meter TM2, the situation of TM5, be the 1st temperature by the temperature of thermometer TM2 institute instrumentation as the 1st and the 2nd thermometer, be the 2nd temperature by the temperature of thermometer TM5 institute instrumentation.
Temperature judging part 104 is judged by the 1st temperature T 2 of the 1st thermometer TM2 institute instrumentation 40 ℃ of less thaies (specified temp) whether.In addition, temperature judging part 104 judges that whether the 2nd temperature T 5 by the 2nd thermometer TM5 institute instrumentation is more than 40 ℃.
Temperature judging part 104 by as above-mentioned mode judge temperature, be stored in judgement in the water of hot-water storage groove 21 heated to the ratio of the water more than 40 ℃ whether more than specific threshold value (or not enough specific threshold value).
Specifically describe about the judgement temperature in temperature judging part 104 with by being heated to the relation of the relevant judgement of the ratio of the water more than 40 ℃.Consider that temperature judging part 104 judges the situation by 40 ℃ of the 1st temperature T 2 deficiencies of the 1st thermometer TM2 institute instrumentation.This situation owing to think that the water that is positioned at the 1st thermometer TM2 below is identified as 40 ℃ of less thaies, even if the ratio of the water more than 40 ℃ is more, also should belong to the ratio of the water of the 1st thermometer TM2 top.Therefore, in the present embodiment, the situation that the 1st temperature T 2 less thaies are 40 ℃, the ratio of the water more than 40 ℃ is less than 30% (the 1st threshold value) of whole hot-water storage groove.
On the other hand, consider that temperature judging part 104 judges that the 2nd temperature T 5 by the 2nd thermometer TM5 institute instrumentation is in the situation more than 40 ℃.This situation, the water that is positioned at the 2nd thermometer TM5 top is identified as more than 40 ℃, so the ratio of the water more than 40 ℃ should belong to the ratio of the water of the 2nd thermometer TM5 top at least.Therefore, in the present embodiment, the 2nd temperature T 5 is in the situation more than 40 ℃, and the ratio of the water more than 40 ℃ is more than 90% (the 2nd threshold value) of whole hot-water storage groove.In addition, as example shown here, the 1st threshold value (being 30% in this example) is less than the 2nd threshold value (being 90% in this example).
Starting and stopping control part 105 is judgements according to temperature judging part 104, the startup of control electric heating generation device 11 and stopping.Therefore, in the situation of 40 ℃ of temperature judging part 104 judgements the 1st temperature T 2 less thaies, startup stops control part 105 starts electric heating generation device 11.On the other hand, judge the 2nd temperature T 5 in the situation more than 40 ℃ at temperature judging part 104, startup stops control part 105 stops electric heating generation device 11.
This also can take in according to threshold value.That is, starting and stopping control part 105 is to judge in the water that is stored in hot-water storage groove 21 at temperature judging part 104 to be heated to the situation of ratio less than the 1st threshold value of the water more than 40 ℃ (for example 30%), and electric heating generation device 11 is started.On the other hand, starting and stopping control part 105 is to judge in the water that is stored in hot-water storage groove 21 at temperature judging part 104 to be heated to the ratio of the water more than the 40 ℃ situation more than the 2nd threshold value (for example 90%), and electric heating generation device 11 is stopped.
Starting and stopping judging part 106 is to be used to judge that electric heating generation device 11 is in starting state or halted state.
Have or not prediction make water consumption judging part 107 be used for the water yield more than 40 ℃ that basis for estimation tried to achieve by the temperature T 1～T5 of thermometer TM1～TM5 instrumentation whether not enough according to the specific period the electric power amount and the prediction of calculating of the predicted value of heat make water consumption, promptly judge hot-water storage groove 21 in heated to the water yield more than 40 ℃ whether the prediction of calculating of the predicted value of the heat of specific period of not enough foundation make water consumption.
Particularly, having or not prediction to make water consumption judging part 107 is at first, calculates the predicted value of heat required in the specific period in electric heating prediction section 101, is predicted the water yield (prediction makes water consumption) that will be used in special time by this predicted value.Having or not prediction to make water consumption judging part 107 is to specify the position same position that is positioned at the water yield (prediction makes water consumption) that is equivalent to be tried to achieve a plurality of thermometer TMI～TM5 in being located at hot-water storage groove 21, or same position do not have situation that thermometer exists be positioned at be equivalent to predict the position that makes water consumption below the thermometer TMi (i=1～5) of nearest position.Have or not prediction that water consumption judging part 107 is further obtained by the temperature T i of specially appointed thermometer TMi, judge whether 40 ℃ of less thaies of temperature T i.That is, the situation of 40 ℃ of temperature T i less thaies is equivalent to the situation that not enough prediction makes water consumption.
Whether not enough electric power judging part 108 are the minimum energy output that are used to judge the employed electric power amount of current point predetermined electric heating generation device 11.
Secondly, one side is with reference to Fig. 4～Fig. 6, and one side illustrates the action of the cogeneration system 1 of relevant present embodiment.
Fig. 4 is that expression switches to the nonanticipating operation mode by the prediction operation mode and the flow chart of the action of the cogeneration system of the situation that turns round.As shown in Figure 4, at first, cogeneration system 1 predicted operation mode running (step S1, S2).That is, electric heating prediction section 101 is calculated the electric power amount of forecasting object period and the predicted value (step S1) of heat.Electric heating control part 102 is according to the electric power and the warm (step S2) of predicted value control electric heating generation device 11 generations of electric power amount of calculating in electric heating prediction section 101 and heat.
That operation mode switching part 100 is judged electric power amount coefficient correlation and heat coefficient correlation and not enough coefficient correlation threshold value (step S3) whether.Situation electric power amount coefficient correlation and heat coefficient correlation and that be not enough coefficient correlation threshold value (step S3: not), still continue to keep the running of prediction operation mode.Electric power amount coefficient correlation and heat coefficient correlation and situation not enough coefficient correlation threshold value (step S3: be), operation mode switching part 100 switches to nonanticipating operation mode (step S4) with operation mode.
After switching to the nonanticipating operation mode, temperature obtaining section 103 obtains the temperature T 1～T5 (step S5) by the water in the hot-water storage groove of being located at each the thermometer TM1～TM5 institute instrumentation in the hot-water storage groove 21.Startup stops judging part 106 and judges that electric heating generation devices 11 are in starting state or halted state (step S6).
Start and to stop judging part 106 and judge that electric heating generation devices 11 are in the situation (step S6: be) of starting state, temperature judging part 104 judges that whether the 2nd temperature T 5 by the 2nd thermometer TM5 institute instrumentation is at (step S7) more than 40 ℃.Judge thus, judge in the water that is stored in hot-water storage groove 21 heated to the ratio of the water more than 40 ℃ whether more than the 2nd threshold value.
Temperature judging part 104 judges that the 2nd temperature T 5 is at the situation more than 40 ℃ (step S7: be).Startup stops control part 105 and stops electric heating generation device 11 (step S8).On the other hand, temperature judging part 104 judges that the 2nd temperature T 5 is not at (the step S7: not), start and stop the starting state (step S9) that control part 105 continues to keep electric heating generation device 11 of the situation more than 40 ℃.
Start and to stop judging part 106 and judge that electric heating generation devices 11 are not in starting state, (step S6: not), temperature judging part 104 is judged by the 1st temperature T 2 of the 1st thermometer TM2 institute instrumentation 40 ℃ of less thaies (step S10) whether promptly to be in the situation of halted state.Judge thus, judge in the water that is stored in hot-water storage groove 21 and to be heated to the ratio of the water more than 40 ℃ less than the 1st threshold value whether.
Temperature judging part 104 is judged the situation (step S10: be) of 40 ℃ of the 1st temperature T 2 less thaies.Start and stop control part 105 execution startup processing (step S11).On the other hand, temperature judging part 104 judges that the 2nd temperature T 5 is at (the step S10: not) of the situation more than 40 ℃.Startup stops control part 105 execution and continues to stop to handle (step S12).
Secondly, with reference to Fig. 5 the action that the startup of above-mentioned steps S11 is handled is described.Fig. 5 is the flow chart that expression starts the action of handling.At first, whether not enough electric power judging part 108 judge the minimum energy output (step S101) of point uses in now electric power amount predetermined electric heating generation device 11.
Electric power judging part 108 is judged the situation (step S101: be) at the minimum energy output of electric power quantity not sufficient that point uses now, starts to stop the halted state (step S102) that control part 105 continues to keep electric heating generation device 11.On the other hand, electric power judging part 108 is judged the situation (step S101: deny) at the minimum energy output of the non-deficiency of electric power amount that point uses now, and startup stops control part 105 and starts electric heating generation device 11 (step S103).
Secondly, the action that stops to handle of continuing of above-mentioned steps S12 is described with reference to Fig. 6.Fig. 6 is the flow chart that expression continues the action that stops to handle.At first, the prediction that has or not prediction that whether not enough the predicted value of the water yield more than 40 ℃ that water consumption judging part 107 bases for estimation are obtained by the temperature T 1～T5 of the thermometer TMI～TM5 institute instrumentation heat according to the specific period calculated makes water consumption (step S111).
Have or not and predict that water consumption judging part 107 is judged heating to the water yield more than 40 ℃ is not that not enough prediction makes water consumption, promptly heats to satisfied situation (the step S111: not), start and stop the halted state (step S112) that control part 105 continues maintenance electric heating generation devices 11 that makes water consumption that predicts of the water yield more than 40 ℃.Have or not prediction that water consumption judging part 107 is judged to heat to the prediction of the water shortage more than 40 ℃ to make water consumption, promptly heat to the water yield more than 40 ℃ and do not satisfy the situation (step S111: be) that prediction makes water consumption, start and stop control part 105 and start electric heating generation devices 11 (step S113).
Cogeneration system 1 not only has the prediction operation mode, also has the nonanticipating operation mode according to the running of the situation in the hot-water storage groove 21.Therefore, even if in the situation of the situation of sinking into to be difficult to predict, also can implement the running of economy according to present situation.
In the nonanticipating operation mode, temperature judging part 104 judges in the situation by 40 ℃ of the 1st temperature T 2 deficiencies of the 1st thermometer TM2 institute instrumentation, starts to stop control part 105 and start electric heating generation devices 11.That is, heat, start and stop control part 105 startup electric heating generation devices 11 to the situation of water less than the 1st threshold value more than 40 ℃ (this situation is 30%).If the warm water of aequum is not stored in hot-water storage groove 21, then warm water has not enough possibility in use.Therefore, as the amount of the warm water that is stored in hot-water storage groove 21 in advance, in the time of will preestablishing as the 1st thermometer corresponding to the thermometer of the position of the required amount of minimum, can suppress to develop into the state of affairs that the warm water deficiency takes place.
In addition, in the nonanticipating operation mode, temperature judging part 104 judge by the 2nd temperature T 5 of the 2nd thermometer TM5 institute instrumentation in the situation more than 40 ℃, start and stop control part 105 and stop electric heating generation device 11.Heat to the water more than 40 ℃ be the above situation of the 2nd threshold value (this situation is 90%), start and stop control part 105 and stop electric heating generation device 11.Even if fully the above warm water of amount is stored in hot-water storage groove 21, do not let alone cooling if use, then can become waste for obtaining the heat that this warm water produces.Therefore, will be positioned at the below of the 1st thermometer, and when being positioned at thermometer corresponding to the position of the abundant amount that is stored in hot-water storage groove 21 in advance and preestablishing, can be suppressed at electric heating generation device 11 and produce useless heat as the 2nd thermometer.
Like this, in the nonanticipating operation mode of cogeneration system 1, can be suppressed at electric heating generation device 11 and produce useless heat, simultaneously, can suppress to develop into the state of affairs that the warm water deficiency takes place.Therefore, can implement the running of economy.
In addition, the temperature of the water in the hot-water storage groove 21 can be to being reduced by a top direction downwards.Therefore, when the 1st thermometer is set in the top of the 2nd thermometer, can utilize the 1st thermometer to judge necessary condition, utilize the 2nd thermometer to judge adequate condition.
Operation mode switching part 100 be according to electric power amount coefficient correlation and heat coefficient correlation and, by the prediction operation mode switch to the nonanticipating operation mode.In the running that utilizes predicted value, be difficult to deal with rightly the significantly variation of natural environment or the significantly variation of living environment.By the situation that departs between use amount electric power amount coefficient correlation and heat coefficient correlation and identification reality and prediction use amount, cogeneration system 1 can switch to the nonanticipating operation mode of desire running according to the temperature regime of the water that is stored in the hot-water storage groove.Therefore, even if, also can keep the running of economy well in the situation of the situation of sinking into to be difficult to predict.
Thermometer TM1～the TM5 that is located at hot-water storage groove 21 is that alignment arrangements is in above-below direction.That is, a plurality of thermometer TM1～TM5 are that the direction that the temperature of the water in the hot-water storage groove 21 reduces is arranged configuration in regular turn.Therefore, by obtaining the temperature of specific thermometer Ti, temperature judging part 104 can grasp really the temperature regime of the water above this thermometer Ti and below the temperature regime of water.Therefore, temperature judging part 104 can be according to calculating the ratio of 40 ℃ water by a plurality of thermometer TM1～temperature T 1～T5 of TM5 instrumentation.
In cogeneration system 1, even judge the situation preferably start electric heating generation device 11 40 ℃ of the 1st temperature T 2 less thaies, put the situation of the minimum energy output of employed electric power quantity not sufficient in now, still can continue to keep the halted state of electric heating generation device 11.Therefore, can suppress to start electric heating generation device 11 and the generation that produces the state of affairs of the above useless electric power of necessary electric power amount.
In addition, in cogeneration system 1,, preferably make electric heating generation device 11 be in the situation of halted state, also can predict the situation that make water consumption, start electric heating generation device 11 in the water shortage more than 40 ℃ even judging the 1st temperature T 2 more than 40 ℃.Belong to fully even if be stored in the present relatively behaviour in service of amount of the warm water in the hot-water storage groove 21, also having needs the more situation of the warm water of volume thereafter.Under the situation that predicts this kind situation, can make 11 startups of electric heating generation device and make under its non-stop always state the state of affairs generation of inhibition warm water deficiency.
More than, preferred embodiment illustrated with regard to of the present invention, but the present invention not only is defined in above-mentioned execution mode, can do all distortion.For example, operation control section 13 also can further comprise the temperature according to thermometer institute instrumentation, calculates the portion of calculating (calculating mechanism) of the ratio of the thermometer of the temperature of instrumentation more than 40 ℃ among thermometer TM1～TM5.Calculate portion for example counts TM1 in the temperature of instrumentation more than 40 ℃ situation, the ratio of calculating thermometer is 1/10 (10%), count TM1 in the temperature of instrumentation more than 40 ℃, the situation of TM2, the ratio of calculating thermometer is 3/10 (30%), count TM1 in the temperature of instrumentation more than 40 ℃, TM2, the situation of TM3, the ratio of calculating thermometer is 5/10 (50%), count TM1 in the temperature of instrumentation more than 40 ℃, TM2, TM3, the situation of TM4, the ratio of calculating thermometer is 7/10 (70%), count TM1 in the temperature of instrumentation more than 40 ℃, TM2, TM3, TM4, the situation of TM5, the ratio of calculating thermometer is 9/10 (90%).Starting and stopping control part 105 is that ratio at the thermometer that the portion of calculating calculates is the situation more than the 2nd threshold value (for example 90%), electric heating generation device 11 is stopped, the ratio of the thermometer of calculating is the situation of less than the 1st threshold value (for example 30%), and the electric heating generation device is started.
In addition, the number of the thermometer of setting is not limited to be located at the number of hot-water storage groove 21 of the cogeneration system 1 of above-mentioned execution mode, both can be below 4, also can be more than 6.In addition, a plurality of thermometers are as long as the above-below direction in the hot-water storage groove has predetermined specific interval, and are also not harmless uniformly-spaced to be provided with.
In addition, the specified temp of being judged during running switching mechanism switch mode is not limited in the above-mentioned execution mode illustrated 40 ℃, also can be other temperature.

Claims (9)

1. cogeneration system is characterized in that comprising:
The electric heating generation device produces electric power and heat;
The hot-water storage groove is stored and is reclaimed the heat that is produced by the aforementioned electric heat generator and the water of being heated;
A plurality of thermometers are located in the former hotter water storagetank, and instrumentation is stored in the temperature of the aforementioned water in the former hotter water storagetank;
The operation mode switching mechanism, handoff predictions operation mode and nonanticipating operation mode, aforementioned prediction operation mode is according to the electrification amount of utilizing the specific period that stores in advance and use heat and the electric power amount of aforementioned specific period of calculating and the predicted value of heat are controlled electric power and the heat that is produced by the aforementioned electric heat generator, and aforementioned nonanticipating operation mode is controlled the startup of aforementioned electric heat generator according to the temperature regime that is stored in the aforementioned water of former hotter water in storing and stopped; And
Start stop control mechanism, after switching to aforementioned nonanticipating operation mode by aforementioned operation mode switching mechanism, during less than the situation of predetermined specified temp, the aforementioned electric heat generator is started by the 1st temperature that is contained in the 1st thermometer institute instrumentation in aforementioned a plurality of thermometer
By being contained in aforementioned a plurality of thermometer and when being arranged at than the 2nd temperature of the 2nd thermometer institute instrumentation below aforementioned the 1st thermometer, the aforementioned electric heat generator being stopped to the situation more than the predetermined aforementioned specified temp,
Aforementioned operation mode switching mechanism is after switching to aforementioned prediction operation mode, the aforementioned predicted value of the electric power amount of aforementioned specific period and in the aforementioned specific period electric power amount coefficient correlation between the actual electric power amount of using, and heat in the aforementioned predicted value of the heat of aforementioned specific period and actual use in the aforementioned specific period between the heat coefficient correlation and during less than the situation of specific coefficient correlation threshold value, switch to the nonanticipating operation mode.
2. cogeneration system as claimed in claim 1 is characterized in that:
Aforementioned startup stop control mechanism is a halted state at the aforementioned electric heat generator, and aforementioned the 1st temperature is that aforementioned specified temp is when above, when making the situation of water consumption less than the prediction of calculating, the aforementioned electric heat generator is started according to the predicted value of the electric power amount of aforementioned specific period and heat according to the water yield more than the aforementioned specified temp of trying to achieve by the aforementioned temperature of aforementioned a plurality of thermometer institute instrumentation.
3. cogeneration system as claimed in claim 1 is characterized in that:
Aforementioned startup stop control mechanism is that halted state and aforementioned the 1st temperature are during less than aforementioned specified temp at the aforementioned electric heat generator, the electric power amount of using at now point be during less than the situation of the minimum energy output of predetermined aforementioned electric heat generator, the halted state of continuation aforementioned electric heat generator.
4. cogeneration system as claimed in claim 1 is characterized in that:
Aforementioned a plurality of thermometer equally spaced is configured on the above-below direction of this hot-water storage groove.
5. cogeneration system is characterized in that comprising:
The electric heating generation device produces electric power and heat;
The hot-water storage groove is stored and is reclaimed the heat that is produced by the aforementioned electric heat generator and the water of being heated;
The operation mode switching mechanism, handoff predictions operation mode and nonanticipating operation mode, aforementioned prediction operation mode is according to the electrification amount of utilizing the specific period that stores in advance and use heat and the electric power amount of aforementioned specific period of calculating and the predicted value of heat are controlled electric power and the heat that is produced by the aforementioned electric heat generator, and aforementioned nonanticipating operation mode is controlled the startup of aforementioned electric heat generator according to the temperature regime that is stored in the aforementioned water in the former hotter water storagetank and stopped; And
Start stop control mechanism, after switching to aforementioned nonanticipating operation mode by aforementioned operation mode switching mechanism, in the water that is stored in the former hotter water storagetank, heated the ratio of the water to specified temp during less than the situation of the 1st threshold value, the aforementioned electric heat generator is started; In the water that is stored in the former hotter water storagetank, heated the ratio of the water to aforementioned specified temp for greater than the situation more than the 2nd threshold value of the 1st threshold value the time, the aforementioned electric heat generator stopped,
Aforementioned operation mode switching mechanism is after switching to aforementioned prediction operation mode, the aforementioned predicted value of the electric power amount of aforementioned specific period and in the aforementioned specific period electric power amount coefficient correlation between the actual electric power amount of using, and heat in the aforementioned predicted value of the heat of aforementioned specific period and actual use in the aforementioned specific period between the heat coefficient correlation and during less than the situation of specific coefficient correlation threshold value, switch to the nonanticipating operation mode.
6. cogeneration system as claimed in claim 5 is characterized in that:
Aforementioned startup stop control mechanism is that the ratio of the halted state and the water to aforementioned specified temp of being heated is that aforementioned the 1st threshold value is when above at the aforementioned electric heat generator, the water yield more than the 1st threshold value is when making the situation of water consumption less than the prediction that the predicted value of the heat of aforementioned specific period of foundation is calculated, the aforementioned electric heat generator to be started.
7. cogeneration system as claimed in claim 5 is characterized in that:
Aforementioned startup stop control mechanism is that the ratio of the halted state and the water to aforementioned specified temp of being heated is during less than aforementioned the 1st threshold value at the aforementioned electric heat generator, the electric power amount of using at now point continues the halted state of aforementioned electric heat generator during less than the situation of the minimum energy output of predetermined aforementioned electric heat generator.
8. cogeneration system as claimed in claim 5 is characterized in that further comprising:
A plurality of thermometers are located in the former hotter water storagetank, and instrumentation is stored in the temperature of the aforementioned water in the former hotter water storagetank;
Calculate mechanism,, calculate the aforementioned ratio of the water to aforementioned specified temp of being heated in the water that is stored in the former hotter water storagetank according to temperature by aforementioned a plurality of thermometer institute instrumentation.
9. as claim 1 or 5 described cogeneration systems, it is characterized in that:
The electric power amount of aforementioned specific period and the aforementioned predicted value of heat will pass by respectively the aforementioned specific period between one-period the electrification amount and use the data of heat on average to calculate respectively.
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