CN104359142B - Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system - Google Patents

Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system Download PDF

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Publication number
CN104359142B
CN104359142B CN201410631803.7A CN201410631803A CN104359142B CN 104359142 B CN104359142 B CN 104359142B CN 201410631803 A CN201410631803 A CN 201410631803A CN 104359142 B CN104359142 B CN 104359142B
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heat
water
thermal storage
outer net
pipe
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CN104359142A (en
Inventor
潘亮
金洪文
张自国
徐辉
马爽
刘喆
王浩
付英会
赵麒
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Jilin long energy saving Polytron Technologies Inc
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Changchun Institute Technology
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Abstract

The invention discloses a kind of heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system, include solar heat-collection and heat-accumulation unit, unified boiler thermal storage unit, mixed water control unit, outer net feed pipe and outer net return pipe, wherein it is provided with the first thermal storage tank in solar heat-collection and heat-accumulation unit, it is provided with electric boiler in unified boiler thermal storage unit, coal-burning boiler and the second thermal storage tank, first thermal storage tank pass through the first water pipe respectively with electric boiler, coal-burning boiler and the second thermal storage tank are connected, it is provided with First Heat Exchanger in first thermal storage tank, it is provided with the second heat exchanger in second thermal storage tank, it is connected by connecting tube between First Heat Exchanger and the second heat exchanger, connected by bypass pipe between connecting tube and outer net return pipe, beneficial effect:The present invention can be conducive to excavating electrical network potentiality, improve rate of load condensate and electric network security as city heat supply thermal source it is achieved that the peak load shifting of utilization of power by the use of solar energy and paddy electricity to greatest extent.

Description

Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system
Technical field
The present invention relates to a kind of combined heat heat source system, particularly to a kind of heat-storage solar energy, electric energy and coal fuel heating Can combined heat heat source system.
Background technology
At present, in city, heat source species is single, relies on coal heat type heat heat supply more, and the discharge of coal-burning boiler is to air Environment can cause severe contamination.Therefore, reduce city heat supply coal heating proportion, increase clean energy resource use ratio, improve city City's thermal source discharge, becomes energy-saving and emission-reduction work problem demanding prompt solution.Existing way often eliminates arcola room, changes fire coal For combustion gas, improve boiler dusting and desulfurating dust-removing equipment, but thermal source fuel is still based on mineral fuel, clean energy resource and can be again Raw energy utilization rate is low.In addition existing urban distribution network daily load changes greatly, and night network load is low, now power plant load rate Low, undercapacity, and load on daytime increases, and is unfavorable for power grid security, how peak load shifting, realize electric energy accumulation of energy and using It is problem demanding prompt solution.
Content of the invention
The main object of the present invention is to clean energy in order to solve thermal source fuel in existing city still based on mineral fuel Source and the low problem of renewable energy utilization rate;
Another object of the present invention is to solve how peak load shifting, realizing accumulation of energy and the utilization of electric energy;
The present invention in order to achieve the above object, a kind of heat-storage solar energy, electric energy and the combustion that solve the above problems and provide Coal heat energy combined heat heat source system.
Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system that the present invention provides include solar energy collection Thermal regenerator unit, unified boiler thermal storage unit, mixed water control unit, outer net feed pipe and outer net return pipe, wherein solar energy collection It is provided with the first thermal storage tank in thermal regenerator unit, in unified boiler thermal storage unit, be provided with electric boiler, coal-burning boiler and the second accumulation of heat Pond, the first thermal storage tank is connected with electric boiler, coal-burning boiler and the second thermal storage tank respectively by the first water pipe, the It is provided with First Heat Exchanger in one thermal storage tank, in the second thermal storage tank, be provided with the second heat exchanger, First Heat Exchanger and the second heat exchange It is connected by connecting tube between device, is connected by bypass pipe between connecting tube and outer net return pipe, be provided with mixed water control unit Water-water jet, water-water jet is connected with connecting tube, the second heat exchanger and outer net feed pipe respectively by pipeline, outer net return pipe, first Heat exchanger, connecting tube, the second heat exchanger, water-water jet and outer net feed pipe form first circulation pipeline, outer net return pipe, first change Hot device, connecting tube, water-water jet and outer net feed pipe form second circulation pipeline, outer net return pipe, bypass pipe, connecting tube, second Heat exchanger, water-water jet and outer net feed pipe form the 3rd circulation line, outer net return pipe, bypass pipe, connecting tube, water-water jet and outer Net feed pipe forms the 4th circulation line.
Be additionally provided with solar thermal collector in solar heat-collection and heat-accumulation unit, the two ends of solar thermal collector pass through pipeline with First thermal storage tank connects, and connecting line is provided with the first temperature sensor and first circulation water pump, and first circulation water pump is by the One temperature sensor control work.
First thermal storage tank is connected with water tank by the second water pipe, and the second water pipe is provided with the second small pump, Water tank is connected with water softening plant, and the first thermal storage tank is additionally provided with liquid level controller and second temperature sensor, the second moisturizing Pump controls work by liquid level controller.
First water pipe is provided with the first small pump.
First Heat Exchanger and the second heat exchanger are water-bath type heat exchanger.
Electric boiler in unified boiler thermal storage unit and coal-burning boiler are set up in parallel, and electric boiler and coal-burning boiler pass through pipeline It is connected with the second thermal storage tank respectively, pipeline is provided with second circulation water pump.
Connecting tube is provided with ratio adjusting valve, and outer net feed pipe is provided with three-temperature sensor, and ratio adjusting valve is by Three-temperature sensor control work.
Outer net return pipe is connected with water tank by the 3rd water pipe, and the 3rd water pipe is provided with the 3rd small pump, outward Net return pipe is provided with pressure transducer and the 3rd water circulating pump, and the 3rd small pump controls work by pressure transducer, and outer net returns Water pipe is provided with the first electromagnetic valve, and bypass pipe is provided with the second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are by the first storage Second temperature sensor control work on hot-tub.
The operation principle of the present invention:
Solar heat-collection and heat-accumulation unit day heat-collecting capacity and amount of stored heat with day outer net make-up water be heated to needed for return water temperature Heat is roughly equal, by the solar thermal collector of this heat-collecting capacity design pass through hot water circuit pipeline and first circulation water pump, first Thermal storage tank, the first temperature sensor are connected, and the switch of first circulation water pump is controlled by the first temperature sensor, when solar energy collection When hot device leaving water temperature reaches setting value, first circulation water pump cuts out, the pressure transducer pressure drop that outer net return pipe is installed Low to supplementing water pressure when, pressure transducer controls the 3rd moisturizing pump work, is stored in and processed through water softening plant in water tank Through the 3rd small pump pressurization entrance system, because moisturizing temperature is low, the system return temperature through moisturizing will reduce, when first for moisturizing When in thermal storage tank, hot water temperature exceedes outer net return water temperature, second temperature sensor controls the first electromagnetic valve to open, the second electricity Magnet valve is closed, and now, outside networks of heat supply backwater (inclusion make-up water) enters solar heat-collection and heat-accumulation unit, through in the first thermal storage tank The First Heat Exchanger temperature after heating in portion raises, when first thermal storage tank's hydropenia, by the liquid of the first thermal storage tank water inlet Level controller sends signal, starts the second small pump, moisturizing is to the first thermal storage tank.
Electric boiler in unified boiler thermal storage unit, coal-burning boiler parallel running, output hot water adds through second circulation water pump It is pressed into into the second thermal storage tank, the run time of electric boiler is paddy electricity period, non-paddy electricity time and paddy electricity time coal-burning boiler root Work according to load variations, paddy electricity and non-paddy electricity period are extracted by the second thermal storage tank with heat, the storage of the second thermal storage tank in good time Heat passes through the second heat exchanger and heats outer net backwater, and the moisturizing of the second thermal storage tank is responsible for by the first small pump.
Outer net backwater first heats under the 3rd water circulating pump acts in solar heat-collection and heat-accumulation unit, by connecting tube Ratio adjusting valve distribution:It is partly into the second heat exchanger in the second thermal storage tank, be partly into water-water jet, Liang Zhe Re-mix in water-water jet, ratio adjusting valve is controlled by the three-temperature sensor on outer net feed pipe, when supply water temperature is less than During setting value, proportion adjustment valve events, the ratio that outer net backwater enters the second heat exchanger increases, and outer net backwater enters water-water jet The water yield will reduce, and supply water temperature can improve, if supply water temperature reaches setting value, ratio adjusting valve stopping action, otherwise, then continue Continuous action, until supply water temperature reaches setting value.
Beneficial effects of the present invention:
The present invention can be conducive to improving the city winter as city heat supply thermal source by the use of solar energy and paddy electricity to greatest extent Season air quality, drastically increase the utilization rate of clean energy resource and regenerative resource, and achieve the shifting peak of utilization of power Fill valley, is conducive to excavating electrical network potentiality, improves rate of load condensate and electric network security.
Brief description
Fig. 1 is present configuration schematic diagram.
1st, solar heat-collection and heat-accumulation unit 2, unified boiler thermal storage unit 3, mixed water control unit 4, outer net feed pipe 5, Outer net return pipe 10, the first thermal storage tank 11, electric boiler 12, coal-burning boiler 13, the second thermal storage tank 14, the first filling pipe Road 15, First Heat Exchanger 16, the second heat exchanger 17, bypass pipe 18, water-water jet 20, solar thermal collector 21, the first temperature Sensor 22, first circulation water pump 23, water tank 24, the first small pump 25, water softening plant 26, liquid level controller 27, Two temperature sensors 28, the second small pump 29, second circulation water pump 30, ratio adjusting valve 31, three-temperature sensor 32, 3rd small pump 33, pressure transducer 34, the 3rd water circulating pump 35, the first electromagnetic valve 36, the second electromagnetic valve, the 37, second benefit Water lines 38, the 3rd water pipe 39, connecting tube.
Specific embodiment
Refer to shown in Fig. 1:
Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system that the present invention provides include solar energy collection Thermal regenerator unit 1, unified boiler thermal storage unit 2, mixed water control unit 3, outer net feed pipe 4 and outer net return pipe 5, the wherein sun The first thermal storage tank 10 can be provided with heat-collection and heat-accumulation unit 1, in unified boiler thermal storage unit 2, be provided with electric boiler 11, coal-burning boiler 12 and second thermal storage tank 13, the first thermal storage tank 10 pass through the first water pipe 14 respectively with electric boiler 11, coal-burning boiler 12 It is connected with the second thermal storage tank 13, be provided with First Heat Exchanger 15 in the first thermal storage tank 10, be provided with the second thermal storage tank 13 Second heat exchanger 16, is connected by connecting tube 39 between First Heat Exchanger 15 and the second heat exchanger 16, connecting tube 39 and outer net backwater Connected by bypass pipe 17 between pipe 5, in mixed water control unit 3, be provided with water-water jet 18, water-water jet 18 pass through pipeline respectively with Connecting tube 39, the second heat exchanger 16 and outer net feed pipe 4 connect, outer net return pipe 5, First Heat Exchanger 15, connecting tube 39, second Heat exchanger 16, water-water jet 18 and outer net feed pipe 4 form first circulation pipeline, outer net return pipe 5, First Heat Exchanger 15, connection Pipe 39, water-water jet 18 and outer net feed pipe 4 form second circulation pipeline, outer net return pipe 5, bypass pipe 17, connecting tube 39, second Heat exchanger 16, water-water jet 18 and outer net feed pipe 4 form the 3rd circulation line, outer net return pipe 5, bypass pipe 17, connecting tube 39, Water-water jet 18 and outer net feed pipe 4 form the 4th circulation line.
It is additionally provided with solar thermal collector 20, the two ends of solar thermal collector 20 are passed through in solar heat-collection and heat-accumulation unit 1 Pipeline is connected with the first thermal storage tank 10, and connecting line is provided with the first temperature sensor 21 and first circulation water pump 22, and first Water circulating pump 22 controls work by the first temperature sensor 21.
First thermal storage tank 10 is connected with water tank 23 by the second water pipe 37, and the second water pipe 37 is provided with second Small pump 28, water tank 23 is connected with water softening plant 25, and the first thermal storage tank 10 is additionally provided with liquid level controller 26 and the second temperature Degree sensor 27, the second small pump 28 controls work by liquid level controller 26.
First water pipe 14 is provided with the first small pump 24.
First Heat Exchanger 15 and the second heat exchanger 16 are water-bath type heat exchanger.
Electric boiler 11 in unified boiler thermal storage unit 2 and coal-burning boiler 12 are set up in parallel, electric boiler 11 and coal-burning boiler 12 are connected with the second thermal storage tank 13 respectively by pipeline, and pipeline is provided with second circulation water pump 29.
Connecting tube 39 is provided with ratio adjusting valve 30, and outer net feed pipe 4 is provided with three-temperature sensor 31, proportion adjustment Valve 30 controls work by three-temperature sensor 31.
Outer net return pipe 5 is connected with water tank 23 by the 3rd water pipe 38, and the 3rd water pipe 38 is provided with the 3rd benefit Water pump 32, outer net return pipe 5 is provided with pressure transducer 33 and the 3rd water circulating pump 34, and the 3rd small pump 32 is by pressure transducer 33 control work, outer net return pipe 5 is provided with the first electromagnetic valve 35, and bypass pipe 17 is provided with the second electromagnetic valve 36, the first electromagnetism Valve 35 and the second electromagnetic valve 36 control work by the second temperature sensor 27 on the first thermal storage tank 10.
The operation principle of the present invention:
Solar heat-collection and heat-accumulation unit 1 day heat-collecting capacity and amount of stored heat with day outer net make-up water be heated to needed for return water temperature Heat is roughly equal, by the solar thermal collector 20 of this heat-collecting capacity design pass through hot water circuit pipeline and first circulation water pump 22, First thermal storage tank 10, the first temperature sensor 21 are connected, and the switch of first circulation water pump 22 is controlled by the first temperature sensor 21 System, when solar thermal collector 20 leaving water temperature reaches setting value, first circulation water pump 22 cuts out, and outer net return pipe 5 is installed Pressure transducer 33 reduced pressure to supplementing water pressure when, pressure transducer 33 control the 3rd small pump 32 work, be stored in water The interior moisturizing processing through water softening plant 25 of case 23 is through the 3rd small pump 32 pressurization entrance system, because moisturizing temperature is low, warp The system return temperature of moisturizing will reduce, when in the first thermal storage tank 10, hot water temperature exceedes outer net return water temperature, the second temperature Degree sensor 27 controls the first electromagnetic valve 35 to open, and the second electromagnetic valve 36 cuts out, now, outside networks of heat supply backwater (inclusion make-up water) Enter solar heat-collection and heat-accumulation unit 1, through the First Heat Exchanger 15 temperature after heating rising the first thermal storage tank 10 within, when the During one thermal storage tank's 10 hydropenia, signal is sent by the liquid level controller 26 of the first thermal storage tank 10 water inlet, start the second benefit Water pump 28, moisturizing is to the first thermal storage tank 10.
Electric boiler 11 in unified boiler thermal storage unit 2, coal-burning boiler 12 parallel running, output hot water is through second circulation water Pump 29 pressurization enters the second thermal storage tank 13, and the run time of electric boiler 11 is paddy electricity period, non-paddy electricity time and paddy electricity time Coal-burning boiler 12 works according to load variations in good time, and paddy electricity and non-paddy electricity period are extracted by the second thermal storage tank 13 with heat, the The amount of stored heat of two thermal storage tanks 13 heats outer net backwater by the second heat exchanger 16, and the moisturizing of the second thermal storage tank 13 is mended by first Water pump 24 is responsible for.
Outer net backwater first heats under the 3rd water circulating pump 34 effect in solar heat-collection and heat-accumulation unit 1, by connection Ratio adjusting valve 30 on pipe 39 distributes:It is partly into the second heat exchanger 16 in the second thermal storage tank 13, be partly into Water-water jet 18, both re-mix in water-water jet 18, and ratio adjusting valve 30 is by the three-temperature sensor on outer net feed pipe 4 31 controls, when supply water temperature is less than setting value, ratio adjusting valve 30 action, outer net backwater enters the ratio of the second heat exchanger 16 Increase, the water yield that outer net backwater enters water-water jet 18 will reduce, and supply water temperature can improve, if supply water temperature reaches setting value, Ratio adjusting valve 30 stopping action, otherwise, then continuation action, until supply water temperature reaches setting value.

Claims (8)

1. a kind of heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system it is characterised in that:Include solar energy Heat-collection and heat-accumulation unit, unified boiler thermal storage unit, mixed water control unit, outer net feed pipe and outer net return pipe, wherein solar energy It is provided with the first thermal storage tank in heat-collection and heat-accumulation unit, in unified boiler thermal storage unit, be provided with electric boiler, coal-burning boiler and the second storage Hot-tub, the first thermal storage tank is connected with electric boiler, coal-burning boiler and the second thermal storage tank respectively by the first water pipe, It is provided with First Heat Exchanger in first thermal storage tank, in the second thermal storage tank, is provided with the second heat exchanger, First Heat Exchanger and second changes It is connected by connecting tube between hot device, is connected by bypass pipe between connecting tube and outer net return pipe, set in mixed water control unit There is water-water jet, water-water jet is connected with connecting tube, the second heat exchanger and outer net feed pipe respectively by pipeline, outer net return pipe, One heat exchanger, connecting tube, the second heat exchanger, water-water jet and outer net feed pipe form first circulation pipeline, outer net return pipe, first Heat exchanger, connecting tube, water-water jet and outer net feed pipe form second circulation pipeline, outer net return pipe, bypass pipe, connecting tube, the Two heat exchangers, water-water jet and outer net feed pipe form the 3rd circulation line, outer net return pipe, bypass pipe, connecting tube, water-water jet and Outer net feed pipe forms the 4th circulation line.
2. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:It is additionally provided with solar thermal collector, pipeline is passed through at the two ends of solar thermal collector in described solar heat-collection and heat-accumulation unit Be connected with the first thermal storage tank, connecting line is provided with the first temperature sensor and first circulation water pump, first circulation water pump by First temperature sensor control work.
3. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:The first described thermal storage tank is connected with water tank by the second water pipe, and the second water pipe is provided with the second small pump, Water tank is connected with water softening plant, and the first thermal storage tank is additionally provided with liquid level controller and second temperature sensor, the second moisturizing Pump controls work by liquid level controller.
4. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:The first described water pipe is provided with the first small pump.
5. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:Described First Heat Exchanger and the second heat exchanger are water-bath type heat exchanger.
6. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:Electric boiler in described unified boiler thermal storage unit and coal-burning boiler are set up in parallel, and electric boiler and coal-burning boiler pass through pipe Road is connected with the second thermal storage tank respectively, and pipeline is provided with second circulation water pump.
7. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:Described connecting tube is provided with ratio adjusting valve, and outer net feed pipe is provided with three-temperature sensor, and ratio adjusting valve is by Three-temperature sensor control work.
8. heat-storage solar energy according to claim 1, electric energy and coal heat type heat combined heat heat source system, its feature exists In:Described outer net return pipe is connected with water tank by the 3rd water pipe, and the 3rd water pipe is provided with the 3rd small pump, outward Net return pipe is provided with pressure transducer and the 3rd water circulating pump, and the 3rd small pump controls work by pressure transducer, and outer net returns Water pipe is provided with the first electromagnetic valve, and bypass pipe is provided with the second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are by the first storage Second temperature sensor control work on hot-tub.
CN201410631803.7A 2014-11-07 2014-11-07 Heat-storage solar energy, electric energy and coal heat type heat combined heat heat source system Active CN104359142B (en)

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CN106091079B (en) * 2016-06-01 2019-04-09 西安交通大学 A kind of natural gas based on heat supply base station is electrically coupled heating system
CN109084359A (en) * 2018-08-10 2018-12-25 天津六百光年智能科技有限公司 Control method and control system based on solar energy water accumulation of heat
CN111947226B (en) * 2020-08-21 2021-06-08 中竞同创能源环境科技集团股份有限公司 Green low-carbon comprehensive energy utilization system and method

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