CN107421133A - A kind of opto-electronic compensation type combined heat device and method - Google Patents

A kind of opto-electronic compensation type combined heat device and method Download PDF

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Publication number
CN107421133A
CN107421133A CN201710603503.1A CN201710603503A CN107421133A CN 107421133 A CN107421133 A CN 107421133A CN 201710603503 A CN201710603503 A CN 201710603503A CN 107421133 A CN107421133 A CN 107421133A
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China
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valve
open
boiler
biomass
until
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CN201710603503.1A
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CN107421133B (en
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刘向向
苗青
冯颖
徐洁
唐亮
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State Grid Corp of China SGCC
State Grid Jiangxi Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Jiangxi Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • 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
    • F24H9/00—Details
    • F24H9/0005—Details for water 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
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S2023/88—Multi reflective traps
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Abstract

A kind of opto-electronic compensation type combined heat device and method, described device include solar thermal collector, biomass boiler, electric boiler and PLC.Solar thermal collector, biomass boiler and electric boiler water inlet are connected with cold water pipe, and delivery port is by the way that temperature sensor, flowing water Valve switch, liquid reserve tank is connected with user.Methods described is according to user's request temperature T0, with reference to current intensity of sunshine, biomass fuel supply situation, the start and stop of solar thermal collector, biomass boiler, electric boiler are determined successively；When three meets heat supply condition, preferentially start solar thermal collector, next to that biomass boiler, furthermore it is electric boiler.The present invention automatically selects the heat supply mode most saved, and the automaticity of whole device is high, can meet the continuous operation under various modes according to the reserve status of Intensity of the sunlight, biomass fuel.The present invention is applied to the comprehensive utilization for the regenerative resource provided multiple forms of energy to complement each other.

Description

A kind of opto-electronic compensation type combined heat device and method
Technical field
The present invention relates to a kind of opto-electronic compensation type combined heat device and method, belongs to renewable energy utilization technical field.
Background technology
Solar energy is a kind of clean energy resource that the amount of containing is maximum in the world, solar energy is developed, just as the current energy A kind of trend that mode is changed.Solar thermal collector is a kind of equipment that the radiation energy of the sun is converted into heat energy.Shortcoming is Solar water heater counterglow dependence is strong, overcast and rainy snowy day can not be applied, illumination deficiency when temperature do not reach requirement.
Biomass boiler is a kind of using the boiler that biomass material is fuel, and boiler oil is used as by the use of forest and agricultural biomass Using with it is environment-friendly, can regenerate the characteristics of, and the thermal efficiency is high, is particularly suitable for high-temperature heat supply, with national energy-saving ring The fast development of guarantor, for biomass fuel boiler under the support of national relevant policies, will turn into has higher economic benefit and society The environment-protection boiler of meeting benefit, also by as the ideal equipment of replacement coal-burning boiler.Shortcoming is biomass boiler fuel seasonality Difficulty is collected, fuel supply is unable to reach 100% requirement.
Electric boiler is also referred to as electrically heated boiler, and using electric power as energy resource supply, a complete set of equipment floor space is small, is not required to chimney, combustion Material residue stacks place, and product unit assembled window dispatches from the factory, need to only connected with the mains at the scene, water pipe, you can put into operation, can greatly save Capital expenditure and mounting cost, and the thermal efficiency is high, but the shortcomings that electric boiler it is also obvious that construction cost and operating cost compared with It is high.
Comprehensive solar thermal collector, biomass boiler, the heat supply merits and demerits of electric boiler three, inquire into and establish a kind of money Source rationally utilizes, and the heating plant that green, energy efficient utilizes becomes current hotspot.
The content of the invention
The object of the present invention is in order to solve the comprehensive utilization of regenerative resource, the present invention proposes a kind of opto-electronic compensation type Combined heat device and method.
The technical solution adopted in the present invention is：
A kind of opto-electronic compensation type combined heat device, including solar thermal collector, biomass boiler, electric boiler and PLC controls Device processed.The water inlet of solar thermal collector, biomass boiler and electric boiler is connected with cold water pipe respectively；Solar thermal collector, life The delivery port of material boiler and electric boiler enters liquid reserve tank by temperature sensor, flowing water Valve switch respectively；Liquid reserve tank passes through Valve and pipeline provide a user hot water；The input connection temperature sensor of the PLC；The PLC Output end connection flowing water Valve switch, the action of control valve.
A kind of method of opto-electronic compensation type combined heat, methods described is according to user's request temperature T0, with reference to current sunshine Intensity, biomass fuel supply situation, determine the start and stop of solar thermal collector, biomass boiler, electric boiler successively；When three all When meeting heat supply condition, preferentially start solar thermal collector, next to that biomass boiler, furthermore it is electric boiler；Assuming that whole fortune The supply of row environmental electric-force is sufficient, and grill pan furnace operating state is not influenceed by external force, T1max、T2max、T3maxRespectively solar energy heating Device, biomass boiler, the electric boiler output temperature upper limit, and T1max<T2max<T3max；First valve K1For solar thermal collector water outlet Electrically operated valve, second valve K of the mouth to liquid reserve tank inlet pipeline2Electricity for biomass boiler delivery port to liquid reserve tank inlet pipeline Movable valve, the 3rd valve K3For the electrically operated valve of electric boiler delivery port to liquid reserve tank inlet pipeline, the 4th valve K4Intake for cold water The electrically operated valve of pipe, the 5th valve K5For the electrically operated valve of liquid reserve tank to user pipe, the 6th valve K6Enter liquid reserve tank pipe for cold water The electrically operated valve in road；Electrically operated valve is in closure state when system is not opened, as heat supply temperature T4More than T0During claimed range, By PLC closed-loop controls, T is automatically adjusted4Size, meet the needs of user, specific method is as follows：
(1) individual equipment independent heat supply mode
Work as T0<=T1max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, solar energy collection Hot device starts；First valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T1>=T0 When, open the first valve K1, work as T4>=T0When, open the 5th valve K5；
Work as T0<=T1max, when no solar irradiation, biomass fuel supply are sufficient, the 4th valve K4Open, biomass boiler Start, the first valve of valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0 When, open the second valve K2, work as T4>=T0When, open the 4th valve K5；
Work as T0<=T1max, when no solar irradiation, biomass fuel lack, the 4th valve K4Open, electric boiler starts；First Valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve Door K3, work as T4>=T0When, open the 5th valve K5；
Work as T1max<T0<=T2max, when biomass fuel supply is sufficient, the 4th valve K4Open, biomass boiler starts；The One valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0When, open second Valve K2；Work as T4>=T0When, open the 5th valve K5；
Work as T1max<T0<=T2max, when biomass fuel lacks, the 4th valve K4Open, electric boiler starts, the first valve K1、 Second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, when T4>=T0When, open the 5th valve K5；
Work as T2max<T0<=T3max, the 4th valve K4Open, electric boiler starts, the first valve K1, the second valve K2, the 3rd valve Door K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, work as T4>=T0When, open the 5th Valve K5；
(2) two equipment combined heat patterns
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, preferentially Start solar thermal collector, until T1=T1max, open the first valve K1, then start biomass boiler, until T2>=T1max, Open the second valve K2, until T4>=T0, open the 5th valve K5；
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel lacks, the 4th valve K4Open, it is preferential to start Solar thermal collector；Until T1=T1max, open the first valve K1, then start electric boiler, until T3>=T1max；Open the 3rd Valve K3, until T4>=T0, open the 5th valve K5；
(3) three equipment combined heat patterns
Work as T2max<T0<=T3max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, preferentially Start solar thermal collector, until T1=T1max；Open the first valve K1, then start biomass boiler, until T2=T2max；Beat Open the second valve K2, then start electric boiler, open the 3rd valve K3, until T4>=T0, open the 5th valve K5；
(4) heat supply mode switches to cooling mode
When a kind of heat supply mode of any of the above need to switch to cooling mode, the first valve K is first shut off1, the second valve K2, the 3rd valve K3, the 5th valve K5, then open the 6th valve K6, until T4=T0；Open the 5th valve K5, supplied to user Heat.
The invention has the advantages that reserve status of the present invention according to Intensity of the sunlight, biomass fuel, automatic choosing The heat supply mode most saved is selected, and the automaticity of whole device is high, can meet the continuous operation under various modes.
The present invention is applied to the comprehensive utilization for the regenerative resource provided multiple forms of energy to complement each other.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
The embodiment of the present invention by establish a set of solar thermal collector, biomass boiler, electric boiler combined heat device and Method, by plurality of operating modes, different operation reserves are formulated, realize the efficient utilization to energy.Controlled using PLC Solar thermal collection system, biomass boiler, the start and stop of electric boiler and the change of operating condition, realize three complete equipments of combined heat Be used cooperatively and seamless switching, produce continuous continual hot water.Whole system is mainly by solar thermal collector, biomass pot The part such as stove, electric boiler, intake pump, control system and pipe fitting forms.
Wherein, control system is made up of temperature sensor, electrically operated valve, PLC.It includes solar-heating, life Material boiler heat supplying and electric boiler heat supply, main heat supply main body are as follows：
(1) solar thermal collector：Water is heated using solar thermal collector；
(2) biomass boiler：Water is heated using biomass boiler；
(3) electric boiler：Biomass boiler and solar thermal collector are supplemented using electric boiler.
During system operation, heat demand is used according to user side, PLC can be according to Intensity of the sunlight, biomass fuel Expect reserve status, automatically select the operational mode of combined heat device, to reach comprehensive utilization solar energy, biomass energy, electric energy, And ensure to export the hot water of assigned temperature.
As shown in figure 1, the present embodiment by solar thermal collector, biomass boiler, electric boiler, reservoir, temperature sensor, Electrically operated valve, PLC, water inlet pipe, outlet pipe etc. form.Whole system can be with 3 kinds of mode operations, respectively：It is single Equipment independent heat supply mode, two equipment combined heat patterns, three equipment combined heat patterns, T1max、T2max、T3maxRespectively For solar thermal collector, biomass boiler, the electric boiler output temperature upper limit；First valve K1For solar thermal collector delivery port extremely The electrically operated valve of liquid reserve tank inlet pipeline, the second valve K2Motor-driven valve for biomass boiler delivery port to liquid reserve tank inlet pipeline Door, the 3rd valve K3For the electrically operated valve of electric boiler delivery port to liquid reserve tank inlet pipeline, the 4th valve K4For cold water inlet Electrically operated valve, the 5th valve K5For the electrically operated valve of liquid reserve tank to user pipe, the 6th valve K6Enter liquid reserve tank pipeline for cold water Electrically operated valve.Electrically operated valve is in closure state when system is not opened, as heat supply temperature T4More than T0During claimed range, pass through PLC controls automatically adjust, and concrete mode is as follows：
(1) individual equipment independent heat supply mode：
Work as T0<=T1max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, solar energy collection Hot device starts, the first valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T1>=T0 When, open the first valve K1, work as T4>=T0When, open the 5th valve K5。
Work as T0<=T1max, when no solar irradiation, biomass fuel supply are sufficient, the 4th valve K4Open, biomass boiler Start, the first valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0When, Open the second valve K2, work as T4>=T0When, open the 5th valve K5。
Work as T0<=T1max, when no solar irradiation, biomass fuel lack, the 4th valve K4To open, electric boiler starts, and first Valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve Door K3, work as T4>=T0When, open the 5th valve K5。
Work as T1max<T0<=T2max, when biomass fuel supply is sufficient, the 4th valve K4To open, biomass boiler starts, the One valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0When, open second Valve K2, work as T4>=T0When, open the 5th valve K5。
Work as T1max<T0<=T2max, when biomass fuel lacks, the 4th valve K4Open, electric boiler starts, the first valve K1、 Second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, when T4>=T0When, open the 5th valve K5。
Work as T2max<T0<=T3max, the 4th valve K4Open, electric boiler starts, the first valve K1, the second valve K2, the 3rd Valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, work as T4>=T0When, open the Five valve K5。
(2) two equipment combined heat patterns：
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, preferentially Start solar thermal collector, until T1=T1max, open the first valve K1, then start biomass boiler, until T2>=T1max, Open the second valve K2, until T4>=T0, open the 5th valve K5。
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel lacks, the 4th valve K4Open, it is preferential to start Solar thermal collector, until T1=T1max, open the first valve K1, then start electric boiler, until T3>=T1max, open the 3rd Valve K3, until T4>=T0, open the 5th valve K5。
(3) three equipment combined heat patterns：
Work as T2max<T0<=T3max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, preferentially Start solar thermal collector, until T1=T1max, open the first valve K1, then start biomass boiler, until T2=T2max, beat Open the second valve K2, then start electric boiler, open the 3rd valve K3, until T4>=T0, open the 5th valve K5。
(4) heat supply mode switches to cooling mode：
When a kind of heat supply mode of any of the above need to switch to cooling mode, the first valve K is first shut off1, the second valve K2, the 3rd valve K3, the 5th valve K5, then open the 6th valve K6, until T4=T0, open the 5th valve K5, supplied to user Heat.
The present embodiment research solar thermal collector can stablize output 100 DEG C hot water, biomass boiler can stablize it is defeated Go out 150 DEG C of hot water, electric boiler can stablize 200 DEG C of hot water of output.
For example, user requires 120 DEG C of hot water outputs, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, start solar thermal collector, until T1=100 DEG C, open the first valve K1, 100 DEG C of hot water inflow reservoirs, start Biomass boiler, T2>At=100 DEG C, the second valve K is opened2, hot water inflow reservoir, work as T4At=120 DEG C, the 3rd valve is opened Door K5Hot water is supplied to user.Now, if user needs 90 DEG C, the first valve K is closed1, the second valve K2, open the 6th valve Door K6, cold water inflow reservoir, work as T4At=90 DEG C, the 5th valve K is opened5, to user's heat supply.

Claims (2)

1. a kind of opto-electronic compensation type combined heat device, it is characterised in that described device includes solar thermal collector, biomass pot Stove, electric boiler and PLC；The water inlet of solar thermal collector, biomass boiler and electric boiler is connected with cold water pipe respectively； The delivery port of solar thermal collector, biomass boiler and electric boiler enters storage by temperature sensor, flowing water Valve switch respectively Liquid case；Liquid reserve tank provides a user hot water by valve and pipeline；The input connection temperature sensor of the PLC； The output end connection flowing water Valve switch of the PLC, the action of control valve.
A kind of 2. method of opto-electronic compensation type combined heat, it is characterised in that methods described is according to user's request temperature T0, with reference to Current intensity of sunshine, biomass fuel supply situation, determine the start and stop of solar thermal collector, biomass boiler, electric boiler successively； When three meets heat supply condition, preferentially start solar thermal collector, next to that biomass boiler, furthermore it is electric boiler；It is false If the supply of whole service environmental electric-force is sufficient, grill pan furnace operating state is not influenceed by external force, T1max、T2max、T3maxThe respectively sun Energy heat collector, biomass boiler, the electric boiler output temperature upper limit, and T1max<T2max<T3max；First valve K1For solar energy heating Electrically operated valve, second valve K of the device delivery port to liquid reserve tank inlet pipeline2For biomass boiler delivery port to liquid reserve tank inlet tube The electrically operated valve in road, the 3rd valve K3For the electrically operated valve of electric boiler delivery port to liquid reserve tank inlet pipeline, the 4th valve K4To be cold The electrically operated valve of water water inlet pipe, the 5th valve K5For the electrically operated valve of liquid reserve tank to user pipe, the 6th valve K6Enter storage for cold water The electrically operated valve of liquid case pipeline；Electrically operated valve is in closure state when system is not opened, as heat supply temperature T4More than T0It is required that model When enclosing, by PLC closed-loop controls, T is automatically adjusted4Size, meet the needs of user, methods described is specific as follows：
(1) individual equipment independent heat supply mode
Work as T0<=T1max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, solar thermal collector Start；First valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T1>=T0When, Open the first valve K1, work as T4>=T0When, open the 5th valve K5；
Work as T0<=T1max, when no solar irradiation, biomass fuel supply are sufficient, the 4th valve K4To open, biomass boiler starts, The first valve of valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0When, beat The K of the valve opening family status two2, work as T4>=T0When, open the 4th valve K5；
Work as T0<=T1max, when no solar irradiation, biomass fuel lack, the 4th valve K4Open, electric boiler starts；First valve K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, Work as T4>=T0When, open the 5th valve K5；
Work as T1max<T0<=T2max, when biomass fuel supply is sufficient, the 4th valve K4Open, biomass boiler starts；First valve Door K1, the second valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T2>=T0When, open the second valve K2；Work as T4>=T0When, open the 5th valve K5；
Work as T1max<T0<=T2max, when biomass fuel lacks, the 4th valve K4Open, electric boiler starts, the first valve K1, second Valve K2, the 3rd valve K3, the 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, work as T4>= T0When, open the 5th valve K5；
Work as T2max<T0<=T3max, the 4th valve K4Open, electric boiler starts, the first valve K1, the second valve K2, the 3rd valve K3、 5th valve K5, the 6th valve K6Closure, until T3>=T0When, open the 3rd valve K3, work as T4>=T0When, open the 5th valve K5；
(2) two equipment combined heat patterns
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, it is preferential to start Solar thermal collector, until T1=T1max, open the first valve K1, then start biomass boiler, until T2>=T1max, open Second valve K2, until T4>=T0, open the 5th valve K5；
Work as T1max<T0<=T2max, when solar irradiation is sufficient, biomass fuel lacks, the 4th valve K4Open, preferentially start the sun Can heat collector；Until T1=T1max, open the first valve K1, then start electric boiler, until T3>=T1max；Open the 3rd valve K3, until T4>=T0, open the 5th valve K5；
(3) three equipment combined heat patterns
Work as T2max<T0<=T3max, when solar irradiation is sufficient, biomass fuel supply is sufficient, the 4th valve K4Open, it is preferential to start Solar thermal collector, until T1=T1max；Open the first valve K1, then start biomass boiler, until T2=T2max；Open the Two valve K2, then start electric boiler, open the 3rd valve K3, until T4>=T0, open the 5th valve K5；
(4) heat supply mode switches to cooling mode
When a kind of heat supply mode of any of the above need to switch to cooling mode, the first valve K is first shut off1, the second valve K2, Three valve K3, the 5th valve K5, then open the 6th valve K6, until T4=T0；Open the 5th valve K5, to user's heat supply.
CN201710603503.1A 2017-07-23 2017-07-23 A kind of opto-electronic compensation type combined heat device and method Active CN107421133B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109059259A (en) * 2018-08-23 2018-12-21 国网冀北综合能源服务有限公司 Electric boiler and solar association heating system

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