CN203083197U - Multisource domain type combined cooling , heating and power (CCHP) energy network system - Google Patents
Multisource domain type combined cooling , heating and power (CCHP) energy network system Download PDFInfo
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Abstract
This utility model relates to the energy technology field and particularly to a multisource domain type combined cooling, heating and power (CCHP) energy network system. The multisource domain type CCHP energy system consists of three parts which are a domain type CCHP power station system, a building group CCHP branch system and a multisource energy network. The three parts are integrated into a unitive combined energy network system. The multisource energy network system consists of a multisource micro network and a multisource annular heat supply network. The power station can perform transverse load complementation with an adjacent power station and perform longitudinal load control with the CCHP branch system, thereby realizing the dynamic complementary matching of loads of cooling, heating and power The utility model emphasizes sufficiency of energy ladder-type utilization and complementary utilization of other energy systems. At the same time, the utility model also gives full consideration to an alternative scheme under special conditions. Compared with the prior art, the utility model has improved energy utilization rate, system stability and reliability.
Description
Technical field
The utility model relates to energy technology field, particularly a kind of multi-source domain type supply of cooling, heating and electrical powers energy net system
Background technology
Cooling heating and power generation system is an advanced person's a clean energy resource efficient technique of rainwater utilization, is that a kind of energy step that is based upon utilizes on the conceptual foundation, with heat supply (heating and heat supply water), refrigeration and the incorporate distributed energy utilization system of power generation process.Under the prerequisite that improves people's work and quality of the life, energy savings is the key technology that the low-carbon (LC) urban energy is built significantly.Therefore worldwide be subjected to generally paying attention to.
The research and the application of cooling heating and power generation system at present has three types:
1, building type---directly to building or on a small scale groups of building cooling, heat supply (comprising hot water), power supply, its generating capacity from 10KW (or following) level to the 100KW level.The building type too disperses, network, be incorporated into the power networks and management and running very complicated.In addition, the building type generally adopts miniature gas turbine, and generating efficiency is low, and as adopting gas internal-combustion engine, the waste heat grade is lower.The capital equipment dependence on import, FU generated output cost of investment height.Because the difference of the structure of different building, scale, function of use, position, building enclosure, therefore, building type technology Integrated Solution and evaluation method difference are big, are difficult to form unified technical standard and related industry standard, so be difficult to penetration and promotion and form the related industry cluster.
2, steam power plant's type---carry out the cool and thermal power supply by large-scale steam power plant and regional air conditioner to the cities and towns scope, the pipe network radius can reach 5-10Km, and its generating capacity reaches hundreds of MW.Steam power plant's type is owing to restricted by the gas supply pressure condition, need large-scale gas turbine to adopt the brownout operation technology, therefore generating efficiency descends, in addition, in co-feeding system economical operation radius, the cool and thermal power supply is much larger than the actual demand of cool and thermal power, and co-feeding system is difficult to realize economical operation, the key equipment dependence on import, the investment cost height.
3, domain type---hot and cold to zone supply by middle-size and small-size cooling heating and power generation system,, as residential area, industrial area, office park, campus, government Office Area etc., its generating capacity is between 1-20MW, and the industrial area is generally between 50MW-100MW.The middle-size and small-size gas turbine of the general employing of domain type, generating efficiency is higher, compares with the large-scale gas turbine generating set, because the power transmission and distribution energy loss is little, therefore actual efficiency is suitable with the large-scale gas turbine generating set.Middle-size and small-size gas turbine technology maturation, and realized production domesticization, domestic corollary equipment is complete, so better results in the comprehensive method of investment.Domain type is the pattern of main both at home and abroad at present research and application.
Existing cooling heating and power generation system scheme is mainly based on building type and steam power plant's type, and existing domain type cooling heating and power generation system scheme is the simple capacity increase of building type scheme.The present following problem of cooling heating and power generation system scheme ubiquity:
1, the variable working condition characteristic of the dynamic of, electric load hot and cold to building and asynchronous matching, system is considered insufficient, system integration scheme has been ignored the co-feeding system variable parameter operation to the adequacy of energy cascade utilization and the adverse effect of co-feeding system operation stability, cause design conditions and actual operating mode gap big, actual energy utilization rate is low.
2, do not have to consider coordination with other energy supply system, as with the coordinated operation of big electrical network, other distributed generation system.Therefore cause the sophisticated collision contradiction aspect energy supply between cooling heating and power generation system and other energy supply system, make between the cooling heating and power generation system and to be difficult to realize complementary coordinated operation with other energy supply system.
3, the interconnected and problem that is incorporated into the power networks of cooling heating and power generation system.Existing cooling heating and power generation system scheme is not dissolved into interconnected and the problem of being incorporated into the power networks in the system integration scheme, and existing microgrid and heat supply network are in isolated studying and use, and other type distributed generation system is integrated design between this in cooling heating and power generation system, microgrid, heat supply network, the zone.
4, there is not the supply of taking into account system extra power to go wrong, the complementation and the alternative scheme of the regular supply of cool and thermal power when breaking down as gas supply and internal system part.This will directly have influence on people's normally the carrying out and social stability of study, work, life.
Summary of the invention
The utility model proposes a kind of domain type cooling heating and power generation system and method thereof in order to solve the deficiency that existing cooling heating and power generation system exists, and this system has following several characteristics:
1, owing to there is the difference of aspects such as function of use, position, external environment condition, building enclosure between building and the groups of building, so the also property of there are differences of the dynamic of its cool and thermal power load.The utility model makes full use of this difference characteristics, the combination networking structure of multi-source chain type microgrid and multi-source ring-type heat supply network is proposed first, make hot and cold, the electric load of each energy source station realize adjacent complementation, can reduce the installed capacity and the quantity of equipment like this, reduce the difficulty of cool and thermal power dynamic load coupling regulation and control and reduce to mate the influence of regulation process system's operation stability.
2, the host-guest architecture pattern and the regulation and control model of domain type supply of cooling, heating and electrical powers energy source station system and groups of building supply of cooling, heating and electrical powers branch system are proposed first, make load matching way and peak load shifting mode have more diversity and flexibility, help the coordination of heat supply and cooling economical operation radius.
3, pay attention to cooperative compensating with outside other energy resource system, make system possess cooperative compensating with big electrical network, distributed generation system, high, medium and low warm source, system outside.
4, first with regional cooling heating and power generation system, microgrid, heat supply network, that distributed generation system has carried out comprehensive integration is integrated.
5, distributed generation system graded dispatching management method in big electrical network, multi-source domain type supply of cooling, heating and electrical powers energy net, the zone is proposed first.Be that big electrical network carries out management and running to multi-source domain type supply of cooling, heating and electrical powers energy net, multi-source domain type supply of cooling, heating and electrical powers energy net carries out management and running to the distributed generation system of region.
When 6, paying attention to that system's extra power supply goes wrong and break down in the built-in system part, can adopt complementation and alternative scheme rapidly, ensure the regular supply of cool and thermal power, guarantee people's normally the carrying out and social stability of study, work, life.
For deficiency and the realization above-mentioned purpose that solves existing cooling heating and power generation system, technical solution of the present utility model provides a kind of multi-source domain type supply of cooling, heating and electrical powers energy net system, cooperative compensating utilization between its regional supply of cooling, heating and electrical powers energy source station, multi-source domain type supply of cooling, heating and electrical powers energy net system and the cooperative compensating utilization in electrical network, distributed generation system, the outside high, medium and low warm source of system greatly.To solve the dynamic load coupling difficult problem of cooling heating and power generation system cool and thermal power load, improve the Integrated Energy of cooling heating and power generation system and the adequacy and the using energy source actual efficiency of cascade utilization.
Described multi-source domain type supply of cooling, heating and electrical powers energy net system, standby each other between its described each adjacent energy source station, lateral adjustments and load complementation.Domain type supply of cooling, heating and electrical powers energy source station has different characteristics with large-scale centralized formula power plant, steam power plant etc., it is a kind of distributed energy resource system, the energy supply scope is less relatively, and energizing quantity is also less relatively, and its energy-provision way is to produce nearby, utilize nearby, complementary nearby, do not need to make up extremely complicated radial microgrid and heat supply network, standby each other between the adjacent energy source station, lateral adjustments and load are complementary, just can realize the dynamic synchronization equilibrium of cool and thermal power load.
Described multi-source domain type supply of cooling, heating and electrical powers energy net system, its described domain type supply of cooling, heating and electrical powers energy source station system and groups of building supply of cooling, heating and electrical powers branch system, the relation of these two systems is master slave relations, and it is integrated into a unified domain type cooling heating and power generation system by multi-source chain type microgrid and multi-source ring-type heat supply network, zone supply of cooling, heating and electrical powers energy source station system, both horizontal regulation and control can be realized, vertical regulation and control can be realized again; The dynamic process that can realize regional cooling heating and power generation system is collaborative, and the dynamic change of cool and thermal power load and load coupling are complementary.Thereby make cooling heating and power generation system fully realize the purpose of Integrated Energy and cascade utilization.
Described multi-source domain type supply of cooling, heating and electrical powers energy net system, the low-temperature flue gas of discharging through the high-temperature residual heat boiler in its described domain type supply of cooling, heating and electrical powers energy source station system, the low-temperature flue gas temperature of being discharged is usually below 80 ℃, thermal source as the low temperature exhaust heat boiler, if the hot water of low temperature exhaust heat boiler is used for life, in engineering practice, find it is a kind of waste, because the hot water of the hot water that steam and hot water reclaims through heat supply in the heat supply network or hot water that is used for the back recovery of lithium bromide refrigerator refrigeration and solar water heater supply can satisfy domestic hot-water's supply fully; If the hot water of low temperature exhaust heat boiler is as the driving heat source of lithium bromide refrigerator, its hot water temperature is on the low side.Therefore when customized high-temperature residual heat boiler, make the low-temperature flue gas temperature of discharge reach 100 ℃, so both can reduce the cost of high-temperature residual heat boiler, can satisfy the requirement of refrigeration and dehumidifying again, improved the value of low-temperature flue gas,, improved generating efficiency by improving the running environment of gas turbine, make full use of low-grade heat energy, produce high-grade electric energy more.
Described multi-source domain type supply of cooling, heating and electrical powers energy net system, complementation with other energy resource system, according to the principle of energy grade counterpart, realize other energy resource system and domain type supply of cooling, heating and electrical powers energy source station system and groups of building supply of cooling, heating and electrical powers branch system cooperative compensating by chain type microgrid and ring-type heat supply network.
Described multi-source domain type supply of cooling, heating and electrical powers energy net system, organic combination with domain type supply of cooling, heating and electrical powers energy source station system, groups of building supply of cooling, heating and electrical powers branch system, multi-source chain type microgrid and multi-source ring-type heat supply network, be meant that these four parts have been integrated into a unified multi-source supply of cooling, heating and electrical powers energy net system, rather than simply piece together.
The beneficial effects of the utility model are, propose the tactic pattern of domain type supply of cooling, heating and electrical powers energy source station system and groups of building supply of cooling, heating and electrical powers branch system, chain type microgrid and ring-type heat supply network and integrated integrated approach by the system engineering theory, solved hot and cold, electric load dynamic synchronization coupling regulation and control and the networking of the minisize distributed type energy resource system difficult problem that is incorporated into the power networks.Further excavated the Integrated Energy cascade utilization of domain type cooling heating and power generation system and to the potential of big electrical network peak load shifting, improve the dynamic load characteristic of big electrical network, big generating set, compare with existing cooling heating and power generation system, its Integrated Energy and cascade utilization effect are more remarkable.
Description of drawings
Fig. 1 is a domain type supply of cooling, heating and electrical powers energy source station system construction drawing;
Fig. 2 is a groups of building supply of cooling, heating and electrical powers branch system structure chart;
Fig. 3 is the connection layout of adjacent DCHP energy source station high temperature collection cylinder and high temperature gas-distributing cylinder;
Fig. 4 is the connection layout that temperature collects cylinder and middle temperature gas-distributing cylinder in the adjacent DCHP energy source station;
Fig. 5 is a multi-source ring-type heat supply network structure chart;
Fig. 6 is a multi-source chain type microgrid structure chart.
DCHP represents domain type supply of cooling, heating and electrical powers energy source station system among Fig. 2, Fig. 3, Fig. 4, Fig. 6, English name: District Cooling Heating and Power.D among Fig. 5
1, D
2, D
3, D
4Expression domain type supply of cooling, heating and electrical powers energy source station system, H
11, H
12, H
13, H
14, H
21, H
22, H
31, H
32, H
33, H
34, H
41, H
42Expression groups of building supply of cooling, heating and electrical powers branch system, ABCDA represents multi-source ring-type heat supply network pipe network.Load refers to power loads such as office in the zone, commerce, life, industry, electric automobile charging station and charging pile among Fig. 6, and DG represents photovoltaic, wind energy, living beings, battery distributed electricity generation system in the zone.
The specific embodiment
The utility model provides a kind of multi-source domain type supply of cooling, heating and electrical powers energy net system, domain type supply of cooling, heating and electrical powers energy source station is followed generating set and is being moved at full capacity or under the High Load Rate state, system is fully generated electricity and generating efficiency is under the high-level state, preferentially utilize Fig. 6 multi-source chain type microgrid to carry out complementary adjusting of electric load of adjacent energy source station; Carry out complementary collaborative adjusting of heating power load of adjacent energy source station as Fig. 3, Fig. 4, Fig. 5 multi-source ring-type heat supply network, reduce domain type supply of cooling, heating and electrical powers energy source station electric power, heating power load peak-valley difference, improve the synchronous matching of electric load and heating power load, Fig. 1 domain type supply of cooling, heating and electrical powers energy source station mates electric load and thermic load or refrigeration duty under the coordinated regulation of Fig. 2 groups of building supply of cooling, heating and electrical powers branch system synchronously.Below by the description of drawings and the specific embodiment the utility model is described further.
Embodiment 1
Summer embodiment: as Fig. 1 at domain type supply of cooling, heating and electrical powers energy source station; fuel is introduced into the gas-turbine combustion chamber burning; the combustion gas of the HTHP that produces enters the turbine acting and drives generator for electricity generation; the high-temperature flue gas waste heat of discharging is reclaimed by the high-temperature residual heat boiler; the high-temperature steam that produces enters the high temperature sub-cylinder through high temperature gas collection cylinder; open valve 2; the generating of driving steam turbine; warm gas-distributing cylinder was to ring-type heat supply network supply steam during temperature collection cylinder entered in the middle temperature steam warp behind the driving steam turbine; as the high temperature vapor-water heat exchanger of Fig. 2 steam through groups of building supply of cooling, heating and electrical powers branch system; convert high-temperature-hot-water to; open valve 13; drive economic benefits and social benefits hot water lithium bromide refrigeration machine cooling, by the regenerative apparatus storage, daytime, economic benefits and social benefits hot water lithium bromide refrigeration machine was born base load to high-temperature-hot-water more than needed by valve 12; during peak of power consumption by ice cold-storage machine peak regulation; during low power consumption, by the compression refrigerating machine peak regulation, ice cold-storage machine cold-storage.Enter night summer during low power consumption; gas turbine, high-temperature residual heat boiler, steam turbine are closed down; by big mains supply; compression refrigerating machine is born basic cooling load; open valve 15 regenerative apparatus high-temperature-hot-waters and drive economic benefits and social benefits hot water lithium bromide refrigeration machine; with ice cold-storage wheel stream peak regulation, ice cold-storage machine cold-storage and peak regulation carry out by turns.Summer such as Fig. 2 domestic hot-water mainly provide the domestic hot-water by the low temperature exhaust heat boiler of groups of building supply of cooling, heating and electrical powers branch system, hot water, the solar energy heating water heater that economic benefits and social benefits hot water lithium bromide refrigeration machine reclaims, flow into the hot water thermal insulating pond through valve 19 during domestic hot-water's load valley, valve-off 19 when the domestic hot-water loaded the peak, open valve 20,21 domestic hot-water is provided, cloudy day, rainy day open valve 10,16 or open valve 12,17, replenish the domestic hot-water.
Winter embodiment: during winter operation, as Fig. 1 drive behind the steam turbine middle temperature steam through in temperature collection cylinder, in warm sub-cylinder to Fig. 5 ring-type heat supply network supply steam, as Fig. 2 open valve 10 make steam through in warm vapor-water heat exchanger convert in warm water's heat supply, during with the thermic load low ebb, open valve 12, store by regenerative apparatus, with the thermic load peak time, warm water's heat supply during warm vapor-water heat exchanger is converted in the warp, enter night winter during low power consumption, as Fig. 1 gas turbine, steam turbine, the high-temperature residual heat boiler is closed down, and opens valve 4, and heat storage electric boiler is by the accumulation of heat limit heat supply of big mains supply limit.Winter such as Fig. 2 domestic hot-water mainly reclaim hot water by heat supply and the solar energy heating water heater provides the domestic hot-water, opening valve 18 makes heat supply recovery hot water enter the hot water thermal insulating pond, flow into the hot water thermal insulating pond through valve 19 during domestic hot-water's load valley, valve-off 19 when the domestic hot-water loaded the peak, open valve 20,21 domestic hot-water is provided; Valve 16 or valve 12,17 are opened in cloudy day, rainy day, snow sky, replenish the domestic hot-water.
Embodiment 3
The transition season embodiment: transition season refers to spring and autumn, and transition season is mainly based on generating, and taking into account provides the domestic hot-water.Transition season when operation such as Fig. 1 open valve 1, make high-temperature steam re-injection gas-turbine combustion chamber, increase the turbine acting.Open valve 2, drive the steam turbine generating, and generate electricity by way of merging two or more grid systems by big dispatching of power netwoks.Transition season such as Fig. 2 domestic hot-water mainly provide the domestic hot-water by solar energy heating water heater, middle temperature vapor-water heat exchanger, open valve 10,16, valve-off 11, flow into the hot water thermal insulating pond through valve 19 during domestic hot-water's load valley, valve-off 19 when the domestic hot-water loaded the peak,, open valve 20,21 domestic hot-water is provided, cloudy day, rainy day are opened valve 12,17, replenish the domestic hot-water.
Complementary operation principle with other distributed generation system in big electrical network and the zone: domain type supply of cooling, heating and electrical powers energy source station system is when satisfying the block supply demand, cooperate big electrical network peak load shifting, reduce the electric load peak-valley difference of big electrical network, improve of the influence of electric power dynamic load to voltage stability, improve the load dynamic change of the big unit in power plant, improve the generating efficiency and the economic benefit of the big unit in power plant.Domain type supply of cooling, heating and electrical powers energy source station system is with peak load shifting mode and big electrical network complementary operation.When multi-source domain type supply of cooling, heating and electrical powers energy net systematic electricity is under-supply, obtain to big electrical network, as other distributed generation systems of Fig. 6 domain type supply of cooling, heating and electrical powers energy source station system region mainly to electric automobile charging station, charging pile and illuminalive power-supply, excrescent electric power can be by the battery electric power storage, when supply of electric power is not enough, provide by battery or multi-source domain type supply of cooling, heating and electrical powers energy net system.
Embodiment 5
When the Gas Turbine Generating Units of arbitrary domain type supply of cooling, heating and electrical powers energy source station breaks down, provide high-temperature steam to drive the steam turbine generating by adjacent area type supply of cooling, heating and electrical powers energy source station, and provide electric power jointly, or directly by big mains supply with adjacent area type supply of cooling, heating and electrical powers energy source station.
When steam turbine breaks down or needs when out of service, open valve 1 as Fig. 1, steam-recycling is to gas-turbine combustion chamber, valve-off 2, open valve 3 steam is injected temperature collection cylinder, through in warm sub-cylinder enter Fig. 5 ring-type heat supply network or add to adjacent energy source station or add to adjacent energy source station by warm sub-cylinder among Fig. 4 by Fig. 3 high temperature sub-cylinder, also can make up enforcement in a manner described.Adjacent energy source station is opened valve 1, and steam-recycling is to gas-turbine combustion chamber, and breaks down or need energy source station out of service to replenish supply of electric power or replenish supply of electric power by big electrical network to this steam turbine.
Embodiment 7
When outside gas supply goes wrong, Gas Turbine Generating Units, steam turbine generating set and high-temperature residual heat boiler are out of service, provide supply of electric power by big electrical network, start heat storage electric boiler as Fig. 1, limit accumulation of heat limit heat supply, and open valve 4, by heat storage electric boiler through in temperature collection cylinder and middle temperature sub-cylinder to the heat supply of Fig. 5 ring-type heat supply network.
Embodiment 8
When hot weather, opening valve 7, valve 8 and valve 5 as Fig. 1 makes the hot water of low temperature exhaust heat boiler drive the mono-potency lithium bromide refrigeration machine, provide an amount of cold air to the compressor inlet, reduce compressor intake air temperature, when air humidity is big, open valve 6, low-temperature flue gas drives absorption industry dehumidifying unit and dehumidifies through heat exchanger, improves the running environment of gas turbine.During microthermal climate, open valve 9, make the hot water of low temperature exhaust heat boiler inject the high-temperature residual heat boiler, improve the inflow temperature of high-temperature residual heat boiler, improve the running environment of high-temperature residual heat boiler.
More than be embodiment principle of the present utility model and exemplary embodiment, those skilled in the art can be with reference to embodiment principle and exemplary embodiment dynamic change and match condition, the dynamic load situation of change of big electrical network and the dynamic load situation of change combination embodiment of other energy resource systems according to climatic condition, cool and thermal power load.
Claims (9)
1. multi-source domain type supply of cooling, heating and electrical powers energy net system, by domain type supply of cooling, heating and electrical powers energy source station system, three parts of groups of building supply of cooling, heating and electrical powers branch system and multi-source energy net system are formed, domain type supply of cooling, heating and electrical powers energy source station system is by gas turbine, steam turbine, generator, compressor, the high-temperature residual heat boiler, high temperature collection cylinder, high temperature gas-distributing cylinder, middle temperature collection cylinder, in warm gas-distributing cylinder, heat storage electric boiler, heat exchanger, the low temperature exhaust heat boiler, absorption industrial dehumidifier, single-action hot water lithium bromide refrigeration machine, valve is formed, groups of building supply of cooling, heating and electrical powers branch system is by middle temperature vapor-water heat exchanger, the high temperature vapor-water heat exchanger, regenerative apparatus, economic benefits and social benefits hot water lithium bromide refrigeration machine, compression refrigerating machine, ice cold-storage machine, the low temperature exhaust heat boiler, groups of building building solar energy heating water heater, groups of building building hot water thermal insulating pond, valve is formed, and multi-source energy net system is made up of multi-source chain type microgrid and multi-source ring-type heat supply network;
It is characterized in that a plurality of domain type supply of cooling, heating and electrical powers energy source station system, some groups of building supply of cooling, heating and electrical powers branch systems, multi-source energy net are integrated into a multi-source domain type supply of cooling, heating and electrical powers energy net system, and to a plurality of district coolings, heat supply, power supply and heat supply water, between each adjacent energy source station by standby each other, lateral adjustments of multi-source energy net and load complementation; With domain type supply of cooling, heating and electrical powers energy source station is the alliance central point, some groups of building cooling heating and power generation systems with the region are the alliance branch point, and being integrated into a domain type cooling heating and power generation system by multi-source chain type microgrid and multi-source ring-type heat supply network, vertically regulation and control and load are complementary for each groups of building supply of cooling, heating and electrical powers branch point in domain type supply of cooling, heating and electrical powers energy source station and the zone.
2. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, the high-temperature residual heat that it is characterized in that gas turbine smoke evacuation in the domain type supply of cooling, heating and electrical powers energy source station system is reclaimed by the high-temperature residual heat boiler, the high-temperature residual heat boiler connects high temperature collection cylinder, high temperature collection cylinder connects high temperature gas-distributing cylinder, and high temperature gas-distributing cylinder is connected to combustion chamber, steam turbine and the middle temperature collection cylinder of gas turbine; Steam turbine is connected with middle temperature collection cylinder, and temperature collection cylinder during heat storage electric boiler is connected in, heat storage electric boiler can limit accumulation of heat limit heat supplies, and middle temperature collects warm gas-distributing cylinder in the cylinder connection, and middle temperature gas-distributing cylinder is connected with multi-source ring-type heat supply network.
3. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that domain type supply of cooling, heating and electrical powers energy source station system has increased by two collection cylinders and gas-distributing cylinder combination, the high-temperature residual heat boiler connects high temperature collection cylinder, high temperature collection cylinder connects high temperature gas-distributing cylinder, and the high temperature gas-distributing cylinder outlet is connected with adjacent energy source station high temperature collection cylinder inlet; Temperature collection cylinder during steam turbine connects, warm gas-distributing cylinder during middle temperature collection cylinder connects, middle temperature gas-distributing cylinder outlet respectively with adjacent energy source station in temperature collection cylinder enter the mouth and be connected with multi-source ring-type heat supply network; These two sharing of load and the adjustings that collect cylinder and gas-distributing cylinder combination responsible energy source station, adjacent energy source station and multi-source ring-type heat supply network.
4. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that domain type supply of cooling, heating and electrical powers energy source station system has increased heat storage electric boiler, standby heat source for multi-source ring-type heat supply network, the storage heating during regulation and control that are used for that big grid power rate of load condensate is low, Gas Turbine Generating Units breaks down and mainteinance repair is out of service, gas supply goes wrong and heat supply network need be met an urgent need ensures heating network operation safety, normal heat supply in winter and lithium bromide refrigerator regular supply in summer cold air.
5. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that the low-temperature flue gas that domain type supply of cooling, heating and electrical powers energy source station system discharges through the high-temperature residual heat boiler, connect heat exchanger, low temperature exhaust heat boiler respectively, heat exchanger connects absorption industrial dehumidifier, make full use of that low temperature exhaust heat improves since air humidity greatly to the influence of gas turbine work done, reduce the air humidity of compressor air intake, thereby improve gas turbine power generation efficient; The low temperature exhaust heat boiler connects single-action hot water lithium bromide refrigeration machine, for regional supply of cooling, heating and electrical powers energy source station inside provides cold air, because the summer temperature height, influence the gas turbine work doing efficiency, inject an amount of cold air at the compressor air intake, reduce intake air temperature, help improving generating efficiency; The low-temperature water heating of low temperature exhaust heat boiler enters the high-temperature residual heat boiler in the winter time, improves the inflow temperature of high-temperature residual heat boiler.
6. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that generating set passes through switch, breaker and transformer and is connected with power distribution network, the generating set of adjacent energy source station connects in the chain type mode, standby each other, mutual adjusting; Other distributed generation system is connected with the load bus of switch with multi-source chain type microgrid by breaker in the zone, thereby is built into a microgrid system based on multi-source chain type microgrid, and each regional multi-source chain type microgrid of city is interconnected by power distribution network; Distributed generation system graded dispatching management in big electrical network, multi-source domain type supply of cooling, heating and electrical powers energy net, the zone, big electrical network carries out management and running to multi-source domain type supply of cooling, heating and electrical powers energy net, and domain type supply of cooling, heating and electrical powers energy net carries out management and running to the distributed generation system of region.
7. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that warm vapor-water heat exchanger inlet is connected with multi-source ring-type heat supply network in the groups of building supply of cooling, heating and electrical powers branch system, outlet is connected with groups of building heating network, groups of building domestic hot-water pipe network respectively; High temperature vapor-water heat exchanger inlet is connected with multi-source ring-type heat supply network, outlet is connected with regenerative apparatus, economic benefits and social benefits hot water lithium bromide refrigeration machine respectively, and the regenerative apparatus outlet is connected with middle temperature vapor-water heat exchanger, economic benefits and social benefits hot water lithium bromide refrigeration machine and groups of building domestic hot-water pipe network respectively; Compression refrigerating machine, ice cold-storage machine are connected with microgrid by power distribution equipment and circuit, and coordinate cooling with economic benefits and social benefits hot water lithium bromide refrigeration machine, and compression refrigerating machine connects the low temperature exhaust heat boiler, and the low temperature exhaust heat boiler is connected with groups of building domestic hot-water pipe network; Groups of building domestic hot-water pipe network is connected with building domestic hot-water pipe network; Groups of building building solar energy heating water heater is connected with building domestic hot-water pipe network, groups of building building hot water thermal insulating pond inlet is connected with heat supply return pipe net, building domestic hot-water pipe network respectively, and the outlet of groups of building building hot water thermal insulating pond is connected with building domestic hot-water pipe network.
8. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that reaching and net mode with the interior industrial exhaust heat in zone and other thermal source utilization, high-temperature steam waste heat and thermal source utilization reach and net mode: the industrial high temperature waste heat boiler connects high temperature collection cylinder, high temperature collection cylinder connects high temperature gas-distributing cylinder, and the high temperature gas-distributing cylinder outlet is connected with adjacent energy source station high temperature collection cylinder inlet; Temperature collection cylinder during steam turbine connects, warm gas-distributing cylinder during middle temperature collection cylinder connects, middle temperature gas-distributing cylinder outlet respectively with adjacent energy source station in temperature collection cylinder enter the mouth and be connected with multi-source ring-type heat supply network; In warm steam waste heat and thermal source utilization and and net mode: temperature collection cylinder during middle temperature waste heat boiler connects, in temperature collection cylinder connect in warm gas-distributing cylinder, middle temperature gas-distributing cylinder outlet respectively with adjacent energy source station in temperature collection cylinder inlet be connected with multi-source ring-type heat supply network or directly enter the mouth and be connected with the high temperature of groups of building cooling heating and power generation system or middle temperature vapor-water heat exchanger; Middle warm water's waste heat and thermal source are incorporated into the power networks and utilize and mode: middle warm water's waste heat and thermal source directly are connected with the high temperature or the outlet of middle temperature vapor-water heat exchanger of groups of building supply of cooling, heating and electrical powers branch system; Low-temperature water heating waste heat and thermal source utilization reach and net mode: directly be connected with groups of building domestic hot-water pipe network or building domestic hot-water pipe network.
9. multi-source domain type supply of cooling, heating and electrical powers energy net as claimed in claim 1 system, it is characterized in that according to the alternation of the seasons the dynamic load situation with cool and thermal power, by valve (1), valve (2), valve (3), valve (4), valve (5), valve (6), valve (7), valve (8), valve (9), valve (10), valve (11), valve (12), valve (13), valve (14), valve (15), valve (16), valve (17), valve (18), valve (19), valve (20), the combination of valve (21) is opened conversion and is selected the using energy source flow process.
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| CN110309944B (en) * | 2019-04-23 | 2023-09-01 | 上海发电设备成套设计研究院有限责任公司 | Regional energy supply cold and hot load prediction method |
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