CN105464732A - Industrial low-grade waste heat energy supply system - Google Patents
Industrial low-grade waste heat energy supply system Download PDFInfo
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- CN105464732A CN105464732A CN201510985593.6A CN201510985593A CN105464732A CN 105464732 A CN105464732 A CN 105464732A CN 201510985593 A CN201510985593 A CN 201510985593A CN 105464732 A CN105464732 A CN 105464732A
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- 239000002918 waste heat Substances 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000010248 power generation Methods 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 239000006200 vaporizer Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- 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
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to an industrial low-grade waste heat energy supply system which comprises a waste heat collecting subsystem, an energy station subsystem, a heat supply subsystem, an organic Rankine cycle power generation subsystem and a domestic hot water supply subsystem. According to the system, the waste heat collecting subsystem is used for carrying out comprehensive recycling on low-grade waste heat resources produced in production of industrial enterprises, so that the waste heat can be concentrated and accumulated in the energy station subsystem and optimally distributed to the heat supply subsystem, the organic Rankine cycle power generation subsystem and the domestic hot water supply subsystem, thus meeting multiple use requirements of heating, power utilization, domestic hot water and the like of urban residents and industrial enterprises, forming an energy supply system, and realizing efficient and large-scale comprehensive recycling of low-grade waste heat all year round.
Description
Technical field
The invention belongs to energy-conserving and environment-protective technical field, particularly the industrial low grade residual heat energy supply system of one.
Background technique
Need in industrial processes to consume a large amount of energy, and in flow, produce a large amount of waste heats.Along with the continuous propelling of China's industrial energy saving work, the industrial exhaust heat of middle GOOD TASTE has obtained at present and has comparatively effectively utilized, but the industrial low grade residual heats such as the liquid of such as less than 100 DEG C, the flue gas of less than 400 DEG C, still extensively and be present in a large number in the high energy consumption industries such as iron and steel, non-ferrous metal, building materials, petrochemical industry, chemical industry and electric power.This part waste heat because of its energy grad low, traditional Land use systems cannot meet the demands, and is not usually fully utilized, and causes a large amount of energy wastes, and exacerbates environmental pollution.
The energy such as a large amount of heating, electricity consumption and domestic water demand is there is in town dweller's life and industrial processes.These are produced and life is used and mainly from fossil energy, can be caused serious pollution of atmosphere.Especially a large amount of uses of coal are one of main reason of northern area Heating Period haze weather.Therefore, in the area that energy consumption is larger, if take effective mode, the low grade residual heat industrial enterprise of cities and towns periphery produced is recycled, substitute fossil energy, what meet the productive life of town dweller and industrial enterprise uses energy demand, will promote China's energy-saving and emission-reduction and prevention and control of air pollution work effectively.
In recent years, along with the continuous progress of power-saving technology, some low grade residual heat recoverying and utilizing methods and device start to occur.Wherein: utilize low grade residual heat to heat to start to have had some engineer applied among a small circle to attempt; The low grade residual heat power generation system of organic Rankine bottoming cycle is adopted tentatively to enter the commercial applications stage; Sample by heat pump lifting waste heat the system be used again to be also suggested.But the application of these method and apparatus exists many restrictions, such as: if be only used for heating, waste heat can be caused cannot to use in non-heating period; If only for generating, efficiency of energy utilization is not high; And promote waste heat taste by newly-increased heat pump, not only need to consume a part of high-grade electric energy, but also improve the investment construction cost of system.
Visible, still lack a kind of method and the apparatus system that can realize high efficiency and scale recycling to industrial low grade residual heat in the whole year at present, meet the multiple energy such as the heating of town dweller and industrial enterprise, electricity consumption and domestic hot-water demand.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art; the object of the present invention is to provide a kind of industrial low grade residual heat energy supply system; UTILIZATION OF VESIDUAL HEAT IN end heat outputting, electricity and domestic hot-water; meet the multiple energy such as the heating of town dweller and industrial enterprise, electricity consumption and domestic hot-water demand, in the whole year, realize high efficiency and the scale comprehensive utilization of waste heat.
Object of the present invention can be achieved through the following technical solutions:
Industry low grade residual heat energy supply system, comprises waste heat acquisition subsystem, energy source station subtense angle, supplies thermal sub-system, organic Rankine bottoming cycle power generation sub-system and domestic hot-water supply subtense angle;
Described waste heat acquisition subsystem gathers recycle pump, afterheat heat exchanger and connecting pipeline by waste heat and control valve is connected in sequence;
Described energy source station subtense angle is made up of thermal accumulator, energy supply recycle pump, recovery tank and connecting pipeline and control valve;
Described confession thermal sub-system, primarily of heat supply initial station heat exchanger, heat circulation pump and heat supplying pipeline and control valve composition, is connected to cities and towns central heating network, realizes central heat supply;
Described organic Rankine bottoming cycle power generation sub-system is in turn connected to form circulation loop by organic working medium recycle pump, preheater, vaporizer, screw expander, condenser, liquid container and pipeline and control valve, and produce electric energy by described screw expansion machine driving generator, realize grid-connected power supply;
Described domestic hot-water supply subtense angle is delivered to user primarily of domestic hot-water's raw water service pump through corresponding pipeline and control valve, realizes domestic hot-water supply.
Described waste heat acquisition subsystem, confession thermal sub-system, organic Rankine bottoming cycle power generation sub-system are connected with recovery tank with the thermal accumulator of described energy source station subtense angle with the end of domestic hot-water supply subtense angle, respectively to maintain quality and the energy balance of system; Described domestic hot-water supply subtense angle connects with the thermal accumulator of described energy source station subtense angle.
Described low grade residual heat refers to the industrial exhaust heat such as the liquid of 60 ~ 100 DEG C and the flue gas of 200 ~ 400 DEG C.
Described waste heat acquisition subsystem, the heat-exchange working medium of energy source station subtense angle, confession thermal sub-system and domestic hot-water supply subtense angle is water, and the working medium of described organic Rankine bottoming cycle power generation sub-system is lower boiling organic working medium.
Described control valve is electromagnetic type, and radio frequency control apparatus is housed.
Described waste heat gathers recycle pump, energy supply recycle pump, heat supply one secondary net recycle pump, organic working medium recycle pump and domestic hot-water's raw water service pump and is equipped with frequency conversion facility, and radio frequency control apparatus is housed.
In described waste heat acquisition subsystem: the external low grade residual heat of afterheat heat exchanger, according to the difference of heat resource form, heat exchanger types is the one in water-water heat exchanger or air-water heat exchanger accordingly.
In described energy source station subtense angle: the heat energy accumulation that described waste heat acquisition subsystem gathers by thermal accumulator, and realize level and smooth output by energy supply recycle pump; By controlling related valve, the hot water accumulated in thermal accumulator can partly or entirely be pumped in the heat supply initial station heat exchanger of described confession thermal sub-system by energy supply recycle pump according to demand, or heat exchange is carried out to the vaporizer and preheater of described organic Rankine bottoming cycle power generation sub-system, meanwhile, can also be further advanced by domestic hot-water's raw water service pump is pumped in described domestic hot-water supply subtense angle; Carry from thermal accumulator hot water out through energy supply recycle pump, after completing heat exchange, part is by recovery tank, and remaining part directly passes through check valve, gather recycle pump via the waste heat in described waste heat acquisition subsystem, finally all get back in described waste heat acquisition subsystem; Recovery tank has moisturizing and retaining energy supply, to maintain the mass balance taking thermal cycle; Be equipped with sensed system in thermal accumulator and recovery tank, comprise temperature, pressure and level sensor.
In described organic Rankine bottoming cycle power generation sub-system: preheater and vaporizer are shell of pipe type organic working medium-water-to-water heat exchanger, organic working medium wherein with hot water heat exchange after, become the gas working medium of high pressure, drive screw decompressor do work, thus pushing generator generating; Gas working medium after overexpansion, becomes liquid state to enter into liquid container through external cooling water condensation within the condenser, then is got back in preheater and vaporizer by working medium pump, completes whole organic Rankine bottoming cycle and electricity generation grid-connecting, realizes power supply.
In described confession thermal sub-system: heat supply initial station heat exchanger is liquid-liquid type heat exchanger, after the heat exchange wherein of heat supply backwater, is delivered to cities and towns central heating network, realizes heat supply by heat circulation pump through a pipe network.
In described domestic hot-water supply subtense angle: domestic hot-water is delivered to user via domestic hot-water's raw water service pump from the thermal accumulator described energy source station subtense angle, realizes domestic hot-water supply.
Compared with prior art, the present invention has following beneficial effect:
1. can realize high efficiency and scale recycling to industrial low grade residual heat in the whole year, substitute fossil energy, promote energy-saving and emission-reduction and prevention and control of air pollution;
2. meet the multiple energy such as the heating of town dweller and industrial enterprise, electricity consumption and domestic hot-water demand.
Accompanying drawing explanation
Fig. 1 is system principle schematic diagram of the present invention.
Wherein: waste heat gathers recycle pump 1; Afterheat heat exchanger 2; Thermal accumulator 3; Energy supply recycle pump 4; Heat supply initial station heat exchanger 5; Recovery tank 6; Vaporizer 7; Preheater 8; Heat circulation pump 9; Organic working medium recycle pump 10; Screw expander 11; Generator 12; Condenser 13; Liquid container 14; Thermal accumulator sensed system (comprising temperature, pressure, water level) 15; Recovery tank sensed system (comprising temperature, pressure, water level) 16; Domestic hot-water's raw water service pump 17; Control valve 1801 ~ 1814.
Embodiment
Below in conjunction with Fig. 1, the present invention is described further.
Embodiment 1: as shown in Figure 1, industrial low grade residual heat energy supply system, comprises waste heat acquisition subsystem, energy source station subtense angle, supplies thermal sub-system, organic Rankine bottoming cycle power generation sub-system and domestic hot-water supply subtense angle.
Waste heat acquisition subsystem gathers recycle pump 1, afterheat heat exchanger 2 and connecting pipeline by waste heat and control valve 1801,1810,1814 forms; Energy source station subtense angle is made up of thermal accumulator 3, energy supply recycle pump 4, recovery tank 6 and connecting pipeline and control valve 1802 ~ 1809; Be made up of heat supply initial station heat exchanger 5, heat circulation pump 9 and heat supplying pipeline and control valve 1811 for thermal sub-system; Organic Rankine bottoming cycle power generation sub-system is made up of organic working medium recycle pump 10, preheater 8, vaporizer 7, screw expander 11, condenser 13, liquid container 14, generator 12 and connecting pipeline and control valve 1813; Domestic hot-water supply subtense angle is made up of domestic hot-water's raw water service pump 17 and connecting pipeline and control valve 1812.
Waste heat acquisition subsystem, confession thermal sub-system, organic Rankine bottoming cycle power generation sub-system are connected with recovery tank 6 with the thermal accumulator 3 of energy source station subtense angle with the end of domestic hot-water supply subtense angle, respectively to maintain quality and the energy balance of system; Domestic hot-water supply subtense angle connects with the thermal accumulator 3 of energy source station subtense angle.
In waste heat acquisition subsystem, the afterheat of hot water that cryogenic heat exchanger 2 is external about 85 DEG C, controls the circulating water flow that waste heat gathers recycle pump 1, makes the hot water of the thermal accumulator 3 entered in energy source station subtense angle reach about 70 DEG C.
Energy source station subtense angle plays to be accumulated the energy of whole system, dispatches and balance control action.The heat energy accumulation that described waste heat acquisition subsystem gathers by thermal accumulator 3, and realize level and smooth output by energy supply recycle pump 4.In the winter time under heating period operating mode: control valve 1805 standard-sized sheet, in thermal accumulator 3, hot water preferentially enters in thermal sub-system, meets heat demand, if low grade residual heat resource is sufficient, control valve 1806 meanwhile partially opens, and hot water more than needed enters organic Rankine bottoming cycle power generation sub-system, for generating; If low grade residual heat resource is inadequate, then complete closed control valve 1806, organic Rankine bottoming cycle power generation sub-system out of service.Under non-heating period operating mode: control valve 1805 full cut-off, out of service for thermal sub-system; Control valve 1806 standard-sized sheet, in thermal accumulator 3, hot water enters in organic Rankine bottoming cycle power generation sub-system, for generating.Under heating period and non-heating period operating mode, in thermal accumulator 3, hot water is also delivered in domestic hot-water supply subtense angle by domestic hot-water's raw water service pump 17 simultaneously, realizes domestic hot-water supply.From thermal accumulator 3 hot water out after heat exchange, part is by recovery tank 6, and remaining part, directly by check valve 1814, gathers recycle pump 1 via waste heat, finally all gets back in waste heat acquisition subsystem; Recovery tank 6 has moisturizing and retaining energy supply, to maintain the mass balance taking thermal cycle; Be equipped with sensed system 15,16 in thermal accumulator 3 and recovery tank 6, comprise temperature, pressure and level sensor, control system controls the operation of other correlation subsystem by these parameters, and what meet user uses energy demand, and maintains the energy balance of whole system.
At heating period, in thermal accumulator 3, hot water enters in thermal sub-system, preferentially meets heat demand, and heat supply backwater with it after heat exchange, is delivered to cities and towns central heating network by heat circulation pump 9 through a pipe network, realizes heat supply in the heat exchanger 5 of heat supply initial station.
At non-heating period or heating period and low grade residual heat resource is sufficient time, the hot water in thermal accumulator 3 enters successively in vaporizer 7 and preheater 8 and carries out heat exchange with organic working medium; Organic working medium absorbs heat energy successively in preheater 8 and vaporizer 7, becomes the gas working medium of high pressure, and drive screw decompressor 11 does work, thus pushing generator 12 generates electricity; Gas working medium after overexpansion, becomes liquid state to enter into liquid container 14 through external cooling water condensation in condenser 13, then is got back in preheater 8 and vaporizer 7 by working medium pump 14, completes whole organic Rankine bottoming cycle and electricity generation grid-connecting, realizes power supply.
Under heating period and non-heating period operating mode, in thermal accumulator 3, hot water can also be delivered to user via domestic hot-water's raw water service pump 17 simultaneously, realizes domestic hot-water supply.
Embodiment 2: as shown in Figure 1, based on the Regional Energy supply system that multiple low grade residual heat integrative is recycled, the present embodiment is identical with embodiment 1, the fume afterheat of external about 300 DEG C of the afterheat heat exchanger 2 wherein in waste heat acquisition subsystem, control the circulating water flow that waste heat gathers recycle pump 1, make the hot water of the thermal accumulator 3 entering energy source station subtense angle reach about 90 DEG C.
Above embodiment is explained in detail specific embodiment of the invention by reference to the accompanying drawings, but due at heat recovery end and utilize end can have multiple combination mode, meets different from can demand.Those of ordinary skill in the art can be easy to improve these embodiments and revise, and need not enter creative work.Therefore, the present invention is not limited to above-described embodiment, and those skilled in the art, according to announcement of the present invention, does not depart from improvement that category of the present invention makes and amendment all should within protection scope of the present invention.
Claims (10)
1. industrial low grade residual heat energy supply system, is characterized in that: comprise waste heat acquisition subsystem, energy source station subtense angle, supply thermal sub-system, organic Rankine bottoming cycle power generation sub-system and domestic hot-water supply subtense angle;
Described waste heat acquisition subsystem comprises waste heat and gathers recycle pump (1), afterheat heat exchanger (2) and connecting pipeline and control valve (1801,1810,1814);
Described energy source station subtense angle comprises thermal accumulator (3), energy supply recycle pump (4), recovery tank (6) and connecting pipeline and control valve (1802 ~ 1809);
Described confession thermal sub-system comprises heat supply initial station heat exchanger (5), heat circulation pump (9) and heat supplying pipeline and control valve (2011);
Described organic Rankine bottoming cycle power generation sub-system comprises organic working medium circulating pump (10), preheater (8), vaporizer (7), screw expander (11), condenser (13), liquid container (14), generator (12) and connecting pipeline and control valve (1813);
Described domestic hot-water supply subtense angle comprises domestic hot-water's raw water service pump (17) and connecting pipeline and control valve (1812);
Described low grade residual heat refers to the industrial exhaust heat such as the liquid of 60 ~ 100 DEG C and the flue gas of 200 ~ 400 DEG C.
2. energy supply system according to claim 1, it is characterized in that: described waste heat acquisition subsystem, confession thermal sub-system, organic Rankine bottoming cycle power generation sub-system are connected with recovery tank (6) with the thermal accumulator (3) of described energy source station subtense angle with the end of domestic hot-water supply subtense angle, to maintain quality and the energy balance of system; Described domestic hot-water supply subtense angle is connected with the thermal accumulator (3) of described energy source station subtense angle.
3. the energy supply system according to claims 1 or 2, is characterized in that: in described waste heat acquisition subsystem, and afterheat heat exchanger (2) type is the one of water-water heat exchanger or air-water heat exchanger; Gathering recycle pump (1) by controlling VFC waste heat, when subtense angle outlet water at tail end is entered in the thermal accumulator (3) in described energy source station subtense angle, reaching required temperature and flow.
4. energy supply system according to claim 1 and 2, is characterized in that: in described energy source station subtense angle, the heat energy accumulation that described waste heat acquisition subsystem gathers by thermal accumulator (3), and realizes smoothly exporting by energy supply recycle pump (4); By controlling relevant control valve (1805 ~ 1806), the hot water accumulated in thermal accumulator (3) can partly or entirely be pumped in heat supply initial station heat exchanger (5) of described confession thermal sub-system by energy supply recycle pump (4) according to demand, or heat exchange is carried out to the vaporizer (8) and preheater (7) of described organic Rankine bottoming cycle power generation sub-system, meanwhile, can also be further advanced by domestic hot-water's raw water service pump (17) is pumped in described domestic hot-water supply subtense angle; From thermal accumulator (3) hot water out after energy supply recycle pump (4) pumping heat exchange, part is by recovery tank (6), remaining part is directly by check valve (1814), gather recycle pump (1) via the waste heat in described waste heat acquisition subsystem, finally all get back in described waste heat acquisition subsystem; Recovery tank (6) has moisturizing and retaining energy supply, to maintain the mass balance of system; Be equipped with sensed system (15,16) in thermal accumulator (3) and recovery tank (6), comprise temperature, pressure and level sensor.
5. energy supply system according to claim 1 and 2, it is characterized in that: in described organic Rankine bottoming cycle power generation sub-system, preheater (7) and vaporizer (8) are shell of pipe type organic working medium-water-to-water heat exchanger, organic working medium wherein with hot water heat exchange after, become the gas working medium of high pressure, drive screw decompressor (11) does work, thus pushing generator (12) generating; Gas working medium after overexpansion, in condenser (13), become liquid state to enter into liquid container (14) through external cooling water condensation, got back in preheater (8) and vaporizer (7) by working medium pump (10) again, complete electricity generation grid-connecting after whole organic Rankine bottoming cycle, realize powering.
6. energy supply system according to claim 1 and 2, it is characterized in that: in described confession thermal sub-system, heat supply initial station heat exchanger (5) is liquid-liquid type heat exchanger, after the heat exchange wherein of heat supply backwater, by hot recycle pump cities and towns central heating network in a pipe network is carried, realize heat supply.
7. energy supply system according to claim 1 and 2, it is characterized in that: in described domestic hot-water supply subtense angle, domestic hot-water is delivered to user via domestic hot-water's raw water service pump (17) from the thermal accumulator (3) described energy source station subtense angle, realizes domestic hot-water supply.
8. energy supply system according to claim 1 and 2, it is characterized in that: described waste heat acquisition subsystem, the heat-exchange working medium of energy source station subtense angle, confession thermal sub-system and domestic hot-water supply subtense angle is water, and the working medium of described organic Rankine bottoming cycle power generation sub-system is lower boiling organic working medium.
9. energy supply system according to claim 1, is characterized in that, described control valve (1801 ~ 1813) is electromagnetic type, and radio frequency control apparatus is housed.
10. energy supply system according to claim 1, it is characterized in that, described waste heat gathers recycle pump (1), energy supply recycle pump (4), heat supply one secondary net recycle pump (9), organic working medium recycle pump (10) and domestic hot-water's raw water service pump (17) and is equipped with frequency conversion facility, and radio frequency control apparatus is housed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060928A (en) * | 2017-05-15 | 2017-08-18 | 华电电力科学研究院 | A kind of system and method for utilization process waste supply electric energy and heat energy |
| CN110374702A (en) * | 2019-06-17 | 2019-10-25 | 江苏大学 | A kind of biomass organic Rankine cycle power generation system of water-storage regulation |
| CN111878184A (en) * | 2020-06-24 | 2020-11-03 | 西安交通大学 | Two-stage organic Rankine cycle combined heat and power system with preferential heat supply function and regulation and control method |
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| CN104632560A (en) * | 2015-02-09 | 2015-05-20 | 南京瑞柯徕姆环保科技有限公司 | Method and system for closing type Britten-Rankine combined cycle solar heat power generation |
| CN205477791U (en) * | 2015-12-25 | 2016-08-17 | 力明（北京）节能科技有限公司 | Low -grade waste heat energy supply system of industry |
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| CN107060928A (en) * | 2017-05-15 | 2017-08-18 | 华电电力科学研究院 | A kind of system and method for utilization process waste supply electric energy and heat energy |
| CN107060928B (en) * | 2017-05-15 | 2023-10-27 | 华电电力科学研究院有限公司 | System and method for supplying electric energy and heat energy by utilizing process waste heat |
| CN110374702A (en) * | 2019-06-17 | 2019-10-25 | 江苏大学 | A kind of biomass organic Rankine cycle power generation system of water-storage regulation |
| CN111878184A (en) * | 2020-06-24 | 2020-11-03 | 西安交通大学 | Two-stage organic Rankine cycle combined heat and power system with preferential heat supply function and regulation and control method |
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