CN210624681U - Cold, heat, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system - Google Patents

Abstract

The utility model discloses a cold, heat, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system, include: the system comprises a new energy power generation subsystem, an industrial electromagnetic heating device, a molten salt storage tank subsystem, a molten salt type heat supply subsystem and a public power distribution network; the new energy power generation subsystem is used for providing electric energy for the industrial electromagnetic heating device and the system with loads and a public power distribution network; the industrial electromagnetic heating device converts most electric energy generated by the photovoltaic and wind power new energy power generation subsystem into heat energy, the heat energy is stored by molten salt and is externally supplied with heat through the molten salt type heat supply subsystem, part of the electric energy can be supplied for the system for use, and the surplus electric energy can also be supplied for a public power grid. The utility model can provide heat energy for residents, office places and other users, provide heating heat source, domestic hot water and steam for centralized refrigeration, and also provide industrial steam and steam for deep power generation and peak regulation; the problem that the peak regulation performance of new energy power generation is poor is solved, and the problems that the new energy field is difficult to absorb, and wind and light are abandoned are also solved.

Description

Cold, heat, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system

Technical Field

The utility model belongs to new forms of energy storage energy supply, peak regulation absorption, environmental protection field, concretely relates to cold, heat, electricity trigeminy supplies new forms of energy supply and peak regulation system.

Background

For a long time, the energy consumption of China still mainly uses coal, the damage to the ecological environment is known, and the damage to the environment caused by coal-fired power generation and coal-fired heat supply is mainly used.

The heat supply problem of the coal is as follows: in winter, urban residents need to lean on a coal-fired cogeneration unit to provide centralized heat supply; in the aspect of rural heating, because the dispersibility and the investment cost of rural villages are limited, the condition of laying a centralized heat supply pipeline is not provided, so that most rural areas in the north of China still adopt a self-made water circulation coal-fired heating furnace mode for heating, and the problems that the coal-fired quantity is greatly increased, the haze is serious, and the environmental pollution treatment pressure of many places is very large become severe in winter; meanwhile, the popularization of the rural domestic water circulation coal-fired heating stove aggravates the coal-fired pollution. The heating mode is popularized and used in vast rural areas for about 20 years, and the rural areas are mainly heated by coal ball furnaces in the early 80 and 90 years. According to investigation, in a rural family with the area of about 100 square meters, coal is less burned when a coal ball furnace is adopted for heating, and the coal is burned about 0.5 ton in one year, so that the haze dance in northern China in the 80 and 90 s is not so serious at present. Since the popularization of the water circulation coal-fired heating furnace, the consumption of the rural bulk coal is increased sharply, according to investigation, the coal-fired quantity of a rural family in the heating mode reaches about 1.2-2 tons per year, the condition is better, the bulk coal combustion mode has no dust removal effect, and in addition, the rural population in China still accounts for most at present, about 56%, so the influence degree of the bulk coal consumption on the environmental pollution is larger;

the problem of coal-fired power generation: although a large-capacity coal-fired generating set is additionally provided with a desulfurization and dust removal device, the emission pollution of smoke dust cannot be completely eradicated, and the large-capacity coal-fired generating set still causes the pollution of the atmospheric environment at present. In order to solve the problem of urban environmental pollution, many urban coal-fired heat supply units are gas heat supply units, and as late as 2017, the national gas-electric installation is 7629 ten thousand kilowatts, wherein more than 70% of the units are combined heat and power. However, natural gas resources in China are few, if a large amount of natural gas is required to meet heat supply by development of gas cogeneration, the natural gas will inevitably affect the energy safety of the country, and the 'gas shortage' in 2017 winter is a typical example.

In order to improve the environment, a large amount of coal gas-to-gas and coal-to-electricity projects are carried out in certain areas in the north of China, however, the practical application effect is not ideal, one reason is that if the coal gas is completely adopted, natural gas is not enough, if a large amount of imported natural gas is used, the national energy safety is threatened, and the other reason is that according to the current gas price and electricity price, the living consumption level of most urban edges and rural residents in China is not enough to support the environment-friendly but high consumption, and the condition that environmental pollution is eliminated by utilizing a're-electrification' mode is not met at present. The coal-fired heating and electric heating cannot be started for the common people, an important reason is related to the energy conversion efficiency and the cost of each conversion link, the chemical energy in fossil fuels such as coal and the like is converted into electric energy, the cycle heat efficiency is about 40 percent, and the total cost of each energy conversion process in the middle is added, therefore, the price is much higher in conversion to electricity consumption heating, which cannot be borne by the consumption level of most common people (including urban residents) in China at present, and through calculation, the table shows the comparative data of consumption of air-conditioning heating and central heating in the taiyuan winter, and it is seen from the table that if the expenses of changing gas from coal and electricity from coal are measured according to the central heating effect, the cost of air-conditioning heating is twice of that of central heating, and the consumption level of common people is estimated to be difficult to achieve within 5 to 10 years by combining the economic development level of China.

In order to relieve environmental pollution, new energy power generation is vigorously developed in all countries in the world. With the rapid development of the new energy power generation industry, the proportion of the installed share of the new energy power generation in the whole power market is larger and larger, and due to the excellent environmental protection performance, non-fossil energy such as new energy (photovoltaic, wind power, hydroelectric and nuclear power) is bound to be the most important direction for future development of energy in China.

The new energy power generation is fast in development at present, but still does not occupy the mainstream proportion. And is limited by certain factors, the development speed of which is not yet completely released, which are mainly as follows: the flexibility of wind power generation and photovoltaic power generation is poor, manual control is difficult on the premise that an electric energy storage technology is not effectively and substantially broken through, and the peak regulation performance is poor; the heat supply device is not actually applied to civil heat supply by a technical innovation means, and the heat supply requirement of common people in winter cannot be met.

Due to the above factors, the phenomena of wind and light abandon are serious at present. Especially during the heating period in winter, the heating demand and contradiction are very outstanding, the gas cogeneration is environment-friendly, but the heat-power ratio is much smaller than that of the coal cogeneration, and in order to solve the problem that the gas cogeneration is environment-friendly and needs heating, for example, in recent years of Beijing of capital, a large amount of electric energy has to be sent out in winter, so that more wind power and photovoltaic power generation which can only generate electricity and can not supply heat can not be squeezed out, and the contradiction of wind abandoning and light abandoning is further aggravated.

If a cold, heat and electricity triple supply new energy storage, energy supply and peak regulation system with the functions of energy storage, energy supply and peak regulation can be designed, the problems can be effectively solved, the bottleneck of the development of the new energy power generation industry can be rapidly opened, and the requirement is very urgent at the stage of increasing environmental protection pressure at present. In addition, along with the improvement of living standard of people, urban steam refrigeration is in the rush, according to relevant statistics, the annual growth rate of steam refrigeration users reaches more than 25%, a steam refrigeration central air conditioner saves energy (saves about 30% of cost compared with a common electric air conditioner), is environment-friendly (can effectively reduce the emission of carbon dioxide, for example, a building with 1 ten thousand square meters is used, if the steam air conditioner replaces the electric air conditioner, the emission of carbon dioxide can be reduced by 201.3 tons every year), and under the large environment of advocating low-carbon economy, energy conservation and consumption reduction, the development of the industry can not only greatly improve the living comfort level of citizens, but also make certain contribution to the green water blue sky of cities and rural areas; the steam generated by the system can also be used for generating electricity by a steam turbine generator set and used for deep peak regulation of a power grid; also, the system may provide domestic hot water to distributed living areas. By combining the factors, the system not only can effectively solve the contradictions of heat supply and power generation, but also can provide steam heat energy guarantee for the construction and development of suburban areas, novel economic development areas, socialist new rural areas and new towns with distributed characteristics.

Disclosure of Invention

In view of the above, the utility model provides a cold, hot, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system to solve the serious environmental pollution such as haze that causes because of burning scattered coal heat supply winter; the contradiction of wind abandonment and light abandonment in the new energy field caused by heat supply in winter is solved; the method solves the contradiction of a series of insufficient consumption levels caused by changing coal into electricity and changing coal into gas, solves the problem of peak regulation and consumption of new energy power generation, and provides a solution for rapidly breaking through the development bottleneck in the new energy power generation industry.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a cold, hot, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system, includes: the system comprises a new energy power generation subsystem, an industrial electromagnetic heating device, a molten salt storage tank subsystem, a molten salt type heat supply subsystem and a public power distribution network;

the new energy power generation subsystem provides electric energy for the industrial electromagnetic heating device, the self-loaded public power distribution network;

the industrial electromagnetic heating device converts most of electric energy of the new energy power generation subsystem into heat energy to be stored by molten salt, and the heat energy can be used for subsequent civil heat supply and can also be used for primary peak regulation of a power grid;

the public power distribution network receives redundant electric energy of the new energy power generation subsystem, and provides standby power for the industrial electromagnetic heating device, the molten salt storage tank subsystem and the molten salt type heat supply subsystem when the new energy power generation subsystem breaks down or is stopped;

the molten salt storage tank subsystem is connected with the industrial electromagnetic heating device and is used for storing and circulating the molten salt;

the molten salt type heat supply subsystem is communicated with the molten salt storage tank subsystem pipeline and heats circulating water and condensed water of a heat supply network by utilizing molten salt heat energy through corresponding heat exchangers, so that heat is supplied to central heat supply users, domestic hot water is provided, and steam is provided.

Preferably, the new energy power generation subsystem is divided into: the photovoltaic power station is used as a main power supply in daytime, and part of the wind generating sets are used as standby power supplies at night or in failure; the wind generating set is used as an independent main power supply; the photovoltaic power station is made into three types of independent main power sources.

Preferably, the photovoltaic power station subsystem comprises a photovoltaic module, a grid-connected inverter, a transformer, a grid-connected electric energy metering device, a user bus and a gateway electric energy metering device, one part of electric energy generated by the photovoltaic module is transmitted to the industrial electromagnetic heating device through a wire, the other part of electric energy is transmitted to the user bus through a wire, one part of electric energy on the user bus is used for supplying power to the molten salt storage tank subsystem from a load and the molten salt type heat supply subsystem from a load, and the other part of residual electric energy on the user bus is transmitted to a public power distribution network through the gateway electric energy metering device.

Preferably, the wind power generation subsystem comprises a wind power generator set, a rectifying device and an accumulator jar, and further comprises a grid-connected inverter, a transformer, a grid-connected electric energy metering device, a user bus and a gateway electric energy metering device which can be shared by the photovoltaic power station subsystem, one part of electric energy generated by the wind power generator set is transmitted to the industrial electromagnetic heating device through a conducting wire passing through the rectifying device and the accumulator jar, the other part of electric energy is transmitted to the user bus through the conducting wire, one part of electric energy on the user bus is used for self-load power supply of the molten salt storage tank subsystem and self-load power supply of the molten salt type heat supply subsystem, and the other part of residual electric energy on the user bus is transmitted to a public distribution network through the gateway electric energy metering device.

Preferably, fused salt storage tank divides system includes fused salt storage tank, valve, fused salt pump and flowmeter, the fused salt storage tank is equipped with the first export of lower part, the first entry of lower part and the first entry of upper portion, the first export of lower part of fused salt storage tank passes through the pipeline intercommunication the entry of fused salt pump, the flowmeter install in on the pipeline, the fused salt pump is followed fused salt storage tank extraction hot liquid fused salt, sends to fused salt formula heat supply branch system through the pipeline, three pipelines are divided to the export of fused salt pump: the first outlet pipe is communicated with the corresponding valve and then communicated with the upper first inlet.

Preferably, the industrial electromagnetic heating device is a high-efficiency industrial heating device, heating is carried out by utilizing an electromagnetic eddy current principle, the internal main structure of the industrial electromagnetic heating device comprises a rectifying element, a silicon controlled element, an electromagnetic coil and a control loop, alternating current is firstly converted into direct current by the rectifying element and then converted into variable-frequency alternating current by the silicon controlled element, the alternating current flows through the lower part of the molten salt storage tank or the electromagnetic coil wound on the outer wall of the molten salt storage tank to generate high-frequency magnetic lines, so that the molten salt storage tank is heated by utilizing the eddy current principle, and electric energy generated by the new energy power generation subsystem is converted into molten salt heat energy.

Preferably, the molten salt type heat supply subsystem includes: the system comprises a fused salt hot water heat exchanger, a heat network circulating pump, a chemical water making tank, a condensed water recovery tank, a condensed water pump, a fused salt condensed water heater, a fused salt steam generator and a fused salt steam superheater, wherein a second outlet pipe is communicated with the fused salt hot water heat exchanger through a pipeline provided with a valve, the heat network circulating pump is communicated with the fused salt hot water heat exchanger through a pipeline and is used for sending hot network circulating water to the fused salt hot water heat exchanger for heat exchange, the circulating water is heated and then sent to a centralized heat supply user for heat supply, circulating water of the centralized heat supply user returns to an inlet of the heat network circulating pump for continuous circulation, an inlet of the heat network circulating pump is communicated with the chemical water making tank, and fresh water can be supplemented through the chemical water making tank when the; the third outlet pipe is sequentially communicated with the molten salt type steam superheater, the molten salt type steam generator and the molten salt type condensate water heater through pipelines, the third outlet pipe is used for heating the condensate water into hot water or steam, the hot water or the steam is used for providing domestic hot water and providing steam, the steam can be used as common industrial heating steam, if needed, the steam can be supplied to the steam turbine power generation unit system for generating power again, the power grid depth is matched for peak shaving, steam is condensed and recovered to the condensate water recovery water tank through a pipeline, the condensate pump is communicated with the pipeline of the condensate water recovery water tank and used for pumping water from the condensate water recovery water tank, the steam is sequentially sent to the molten salt type condensate water heater, the molten salt type steam generator and the molten salt type steam superheater according to the flow to absorb heat, and fresh water can be supplemented through the chemical water production water.

Preferably, the fused salt formula heat supply branch system is equipped with the return line, the return line intercommunication fused salt hot water heat exchanger and fused salt formula condensate water heater and collect to the first entry of lower part of fused salt storage tank returns the cold-state fused salt after releasing heat in the fused salt storage tank.

Preferably, the connection mode of the industrial electromagnetic heating device and each new energy power generation subsystem is a direct current power transmission mode or an alternating current power transmission mode.

Preferably, the direct current transmission method includes: one part of electric energy generated by the new energy power generation subsystem is transmitted to a silicon controlled element of the industrial electromagnetic heating device through a wire provided with a direct current breaker, the other part of the electric energy is transmitted to the user bus through a grid-connected inverter, a transformer and an electric energy metering device which are sequentially connected through the wire, the user bus is connected with the rectifying element through the wire to serve as a standby power supply, and the rectifying element is directly connected with the silicon controlled element through the wire; the alternating current transmission mode is as follows: the electric energy generated by the new energy power generation subsystem directly reaches the user bus through a grid-connected inverter, a transformer and an electric energy metering device which are sequentially connected through a lead, the user bus is connected with the rectifying element through a lead to serve as a main power supply, and when the new energy power generation subsystem is in fault or temporarily stops using, a standby power supply is provided for each power load through the user bus.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model solves the problem of how to effectively store, absorb and adjust the peak and convert the energy into the heating energy of the civil life in the photovoltaic power generation and the wind power generation;

2. the utility model discloses can adopt one or two kinds in photovoltaic power plant subsystem and the wind power generation subsystem as power supply, utilize industry electromagnetic heating device and fused salt storage tank subsystem to turn into the electric energy heat energy and store, accomplish the preliminary peak shaving of electric wire netting, adopt fused salt formula heat supply subsystem to provide life hot water, concentrate steam and other uses steam for refrigeration simultaneously, can improve people's quality of life fairly effectively, store the electric energy, change and combine together with fused salt system, folk life field innovatively through industry electromagnetic heating device; if necessary, the generated steam can be supplied to a steam turbine generator set system for generating power again to complete the deep peak regulation effect, so that the problem of poor peak regulation performance of the current new energy power generation can be effectively solved, the problem of clean energy consumption can be solved, and the problem of wind and light abandonment can be effectively solved;

3. the utility model discloses an industry electromagnetic heating device that has been very ripe industry heating equipment at present, thereby adopt industry electromagnetic heating device to the heating of fused salt storage tank to send the electric energy conversion heat energy that new forms of energy power generation subsystem sent and store by the fused salt, industry electromagnetic heating device utilizes electromagnetic eddy current heating, rather than utilizing conventional thermal resistance original paper conduction heating, electric heat conversion efficiency is very high, can reach about 95% ~ 98%, be an environmental protection, the heating scheme that the country advocated actively, mature application in the enterprise advanced at present, and ordinary resistance coil conduction heating mode electric heat energy conversion efficiency is only about 60 ~ 70%;

4. the utility model has two connection modes of the power generation system and the industrial electromagnetic heating device, adopts the connection mode that the direct current output of the new energy power generation subsystem is directly connected to the input end of the silicon controlled element of the industrial electromagnetic heating device through the direct current breaker, can effectively reduce the capacity of the grid-connected inverter and the transformer of the new energy power generation subsystem and reduce the manufacturing cost;

5. the utility model can solve the problem that residents in rural and urban suburban areas without central heating supply can be heated by burning loose coal and cause environmental pollution such as haze and the like, thereby solving the difficulty of central heating for the construction of new rural and new cities for developing socialist in a planned place;

6. the utility model has short construction period and quick effect, and once the application and transformation are successfully carried out and the popularization is vigorously carried out, the social contradictions of insufficient consumption level and the like caused by 'changing coal into electricity and changing coal into gas' can be effectively solved, the gas shortage is relieved, the 'gas shortage' phenomenon is avoided, and the national energy safety is ensured;

7. the utility model can effectively store the energy of photovoltaic power generation and wind power generation, thereby effectively adjusting the peak load of the power grid, effectively solving the problems of poor peak adjusting performance of photovoltaic power generation and wind power generation and difficult new energy consumption along with the enlargement of the whole construction capacity, and effectively solving the contradiction of wind abandonment and light abandonment in the new energy field caused by heat supply in winter;

8. the utility model creatively combines the industries of new energy power generation and energy storage, power grid peak regulation, civil heating, steam supply, refrigeration and the like together by heating the molten salt storage tank through the electromagnetic heating device, and the mode of converting electric energy into heat energy for storage ensures that the construction cost of the whole system is economic and reasonable due to easily obtained raw materials and low price, and accords with the national industrial policies of energy conservation and environmental protection;

9. the utility model discloses because of it can the energy storage, can also supply the heat, can supply vapour again, provide a solution thinking for the new forms of energy power generation trade breaks through the development bottleneck fast, because the maturity of long distance heat supply technique, it only limits to marine to have solved wind power generation, remote mountain area, the mode of development of remote wasteland or desert area, can be effectively to urban suburb, rural development, to population central region, the regional development of civilian demand, along with its quick successful development, can replace all functions of coal machine completely, be expected to thoroughly solve the environmental pollution problem because of the coal-fired brings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a system flow chart of embodiment 1 of the present invention;

fig. 2 is a system flowchart of embodiment 2 of the present invention;

fig. 3 is a system flowchart of embodiment 3 of the present invention;

fig. 4 is a system flowchart of embodiment 4 of the present invention;

fig. 5 is a system flowchart of embodiment 5 of the present invention;

fig. 6 is a system flowchart of embodiment 6 of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

As shown in fig. 1, a cold, hot, electricity triple supply new energy storage energy supply and peak shaving system includes: the system comprises a new energy power generation subsystem, an industrial electromagnetic heating device 1, a molten salt storage tank subsystem 2, a molten salt type heat supply subsystem 3 and a public power distribution network 4; the new energy power generation subsystem provides electric energy for the industrial electromagnetic heating device 1 and the public power distribution network 4 with loads; the industrial electromagnetic heating device 1 is used for converting the electric energy of the new energy power generation subsystem into heat energy and storing the heat energy by molten salt; the public power distribution network 4 receives the electric energy of the new energy power generation subsystem, and provides standby power for the industrial electromagnetic heating device 1, the molten salt storage tank subsystem 2 and the molten salt type heat supply subsystem 3 when the new energy power generation subsystem fails or is stopped; the molten salt storage subsystem 2 is connected with the industrial electromagnetic heating device 1 and is used for storing and circulating the molten salt; fused salt formula heat supply subsystem 3 with fused salt storage tank subsystem 2 pipeline intercommunication to utilize fused salt heat energy heating heat supply network circulating water and condensate water through corresponding heat exchanger, thereby for central heating user heat supply, provide life hot water and provide steam.

The self-load is the self-load of the molten salt storage subsystem 2 and the self-load of the molten salt type heat supply subsystem 3.

The new energy power generation subsystem is one or two of a photovoltaic power station subsystem 5 and a wind power generation subsystem 6. The new energy power generation subsystem comprises: a photovoltaic power station subsystem 5 is used as a main power supply in the daytime, and a wind power generation subsystem 6 is used as a standby power supply at night or in failure; the wind power generation subsystem 6 is used as an independent main power supply; the photovoltaic power station subsystem 5 is in three types of independent main power sources.

The photovoltaic power station subsystem 5 comprises a photovoltaic module 51, a grid-connected inverter 52, a transformer 53, a grid-connected electric energy metering device 54, a user bus 55 and a gateway electric energy metering device 56, one part of electric energy generated by the photovoltaic module 51 is transmitted to the industrial electromagnetic heating device 1 through a lead, the other part of electric energy is transmitted to the user bus 55 through a lead, one part of electric energy on the user bus 55 is used for supplying power to a self-load of the molten salt storage tank subsystem 2 and a self-load of the molten salt type heat supply subsystem 3, and the other part of residual electric energy on the user bus 55 is transmitted to the public power distribution network 4 through the gateway electric energy metering device 56.

The wind power generation subsystem 6 comprises a wind power generator set 61, a rectifying device 62 and an accumulator jar 63, and further comprises a grid-connected inverter 52, a transformer 53, a grid-connected electric energy metering device 54, a user bus 55 and a gateway electric energy metering device 56 which can be shared by the photovoltaic power station subsystem, one part of electric energy generated by the wind power generator set 61 is transmitted to the industrial electromagnetic heating device 1 through a conducting wire passing through the rectifying device 62 and the accumulator jar 63, the other part of electric energy is transmitted to the user bus 55 through a conducting wire, one part of electric energy on the user bus 55 is used for supplying power to a self-load of the molten salt storage tank subsystem 2 and a self-load of the molten salt type heat supply subsystem 3, and the other part of residual electric energy on the user bus 55 is transmitted to the public power distribution network 4 through the gateway electric energy metering device 56.

Fused salt storage tank divides system 2 to include fused salt storage tank 21, valve, fused salt pump 22 and flowmeter 23, fused salt storage tank 21 is equipped with the first export of lower part, the first entry of lower part and the first entry of upper portion, the first export of lower part of fused salt storage tank 21 passes through the pipeline intercommunication fused salt pump 22's entry, flowmeter 23 install in on the pipeline, fused salt pump 22 follows fused salt storage tank 21 hot liquid fused salt of extraction, sends to fused salt formula heat supply branch system 3 through the pipeline, fused salt pump 22's export is divided three pipelines: the first outlet pipe is communicated with the corresponding valve and then communicated with the upper first inlet.

The lower surface of the molten salt storage tank 21 is supported by a support 24, and the outermost surface of the molten salt storage tank 21 is coated with an insulating material 25 to ensure the heat transfer efficiency.

The number and the type of all valves in the system do not reflect specific number and fixed operation energy (electric or pneumatic), the number of the industrial electromagnetic heating devices, the number of the corresponding heaters, the capacity of the photovoltaic modules and the number of the wind generating sets are not specified in detail, corresponding expansion design can be carried out according to actual needs, and a design unit carries out detailed improvement according to actual needs during specific application tests, namely the flow chart of the system is a principle system flow chart.

The industrial electromagnetic heating device 1 is a high-efficiency industrial heating device, is heated by utilizing an electromagnetic eddy current principle, and mainly comprises a rectifier element 11, a silicon controlled element 12, an electromagnetic coil 13 and a control loop, wherein alternating current is firstly converted into direct current by the rectifier element 11, then converted into variable-frequency alternating current by the silicon controlled element 12, and the alternating current flows through the electromagnetic coil 13 below the molten salt storage tank 21 or wound on the outer wall of the molten salt storage tank 21 to generate high-frequency magnetic lines, so that the molten salt storage tank 21 is heated by utilizing the eddy current principle, and electric energy generated by a new energy power generation subsystem is converted into molten salt heat energy to be stored.

Molten salt formula heat supply subsystem 3 includes: the system comprises a fused salt hot water heat exchanger 31, a heat network circulating pump 32, a chemical water making water tank 33, a condensed water recovery water tank 34, a condensed water pump 35, a fused salt condensed water heater 36, a fused salt steam generator 37 and a fused salt steam superheater 38, wherein a second outlet pipe is communicated with the fused salt hot water heat exchanger 31 through a pipeline provided with a valve, the heat network circulating pump 32 is communicated with the fused salt hot water heat exchanger 31 through a pipeline, and is used for sending hot network circulating water to the fused salt hot water heat exchanger 31 for heat exchange, heating the circulating water and then sending the heated circulating water to a centralized heat supply user for heat supply, the circulating water of the centralized heat supply user returns to an inlet of the heat network circulating pump 32 for continuous circulation, an inlet of the heat network circulating pump 32 is communicated with the chemical water making water tank 33, and fresh water can be supplemented through the; the third outlet pipe is sequentially communicated with a molten salt type steam superheater 38, a molten salt type steam generator 37 and a molten salt type condensate heater 36 through pipelines, is used for heating condensate into hot water or steam, is used for providing domestic hot water and providing steam, steam is condensed and recovered to the condensate recovery water tank 34 through a pipeline, the condensate pump 35 is communicated with the condensate recovery water tank 34 through a pipeline, is used for pumping water from the condensate recovery water tank, and is sequentially sent to the molten salt type condensate heater 36, the molten salt type steam generator 37 and the molten salt type steam superheater 38 according to a flow to absorb heat, and fresh water can be supplemented through the chemical water production water tank 33 when the pressure of the condensate recovery water tank 34 is reduced.

The molten salt type heat supply subsystem 3 is provided with a return pipeline 39, the return pipeline 39 is communicated with the molten salt type hot water heat exchanger 31 and the molten salt type condensed water heater 36 and collects the molten salt type condensed water heater to a first inlet at the lower part of the molten salt storage tank 21, and cold molten salt after heat release is returned to the molten salt storage tank 21.

The industrial electromagnetic heating device 1 and each new energy power generation subsystem are connected in a direct current transmission mode and an alternating current transmission mode.

The direct-current power transmission mode is as follows: one part of electric energy generated by the new energy power generation subsystem is transmitted to the silicon controlled element 12 of the industrial electromagnetic heating device 1 through a lead provided with a direct current breaker 7, the other part of the electric energy is transmitted to the user bus 55 through a grid-connected inverter 52, a transformer 53 and a grid-connected electric energy metering device 54 which are sequentially connected through leads, the user bus 55 is connected with the rectifying element 11 through a lead to serve as a standby power supply, and the rectifying element 11 is directly connected with the silicon controlled element 12 through a lead;

the alternating current transmission mode is as follows: and a direct current circuit is eliminated, electric energy generated by the new energy power generation subsystem directly reaches the user bus 55 through a grid-connected inverter 52, a transformer 53 and a grid-connected electric energy metering device 54 which are sequentially connected through a lead, and the user bus 55 is connected with the rectifying element 11 through a lead to serve as a main power supply.

This embodiment adopts photovoltaic power plant subsystem 5 to make the main power supply part, and wind power generation subsystem 6 is stand-by power supply, at night photovoltaic power plant stop work, be used as stand-by power supply when photovoltaic trouble daytime, the capacity is designed according to certain proportion from the load, when photovoltaic power plant subsystem 5 trouble, wind power generation subsystem 6 can not have unnecessary electric energy to supply outward, and when stand-by power supply capacity was not enough, accessible user bus 55 obtained stand-by power supply from public power distribution network 4, when photovoltaic power plant subsystem 5 was normal often, wind power generation subsystem 6 and photovoltaic power plant subsystem 5 mix send to partly surplus electric energy on the user bus 55 just can send to public power distribution network 4 through gateway electric energy metering device 56.

In this embodiment, the direct current transmission mode is adopted to connect the industrial electromagnetic heating device 1.

Example 2

As shown in fig. 2, in addition to the above embodiment 1, the ac transmission method is adopted to connect the new energy power generation subsystem and the industrial electromagnetic heating device 1, and the capacities of the devices such as the grid-connected inverter 52 and the transformer 53 are reselected according to the total power generation capacity, and the same arrangement of other systems is the present embodiment.

Example 3

As shown in fig. 3, on the basis of the above embodiment 1, the photovoltaic module 51 of the photovoltaic power plant subsystem 5 is removed, the wind turbine generator set 61, the rectifying device 62 and the storage battery 63 of the wind power generation subsystem 6 are enlarged in scale and capacity according to the system requirements, the wind turbine generator set 61 is used as an independent main power supply, and the other system arrangements are the same, that is, the present embodiment.

Example 4

As shown in fig. 4, on the basis of the above embodiment 2, the photovoltaic module 51 of the photovoltaic power station subsystem 5 is removed, the wind turbine generator set 61, the rectifying device 62 and the storage battery 63 of the wind turbine power generation subsystem 6 are enlarged in scale and capacity according to the system requirements, the wind turbine generator set 61 is used as an independent main power supply, the new energy power generation subsystem and the industrial electromagnetic heating device 1 are connected by an alternating current transmission method, and the other systems are arranged in the same manner, that is, the embodiment is the present embodiment.

Example 5

As shown in fig. 5, on the basis of the above embodiment 1, the wind turbine generator system 61, the rectifier 62, and the storage battery 63 of the wind power generation subsystem 6 are removed, the photovoltaic power station subsystem 5 is used as an independent main power supply, the power consumption from the load at night is provided by the public power distribution network 4, and the same arrangement of other systems is the present embodiment.

Example 6

As shown in fig. 6, on the basis of the above embodiment 2, the wind turbine generator system 61, the rectifier 62 and the storage battery 63 of the wind power generation subsystem 6 are removed, the photovoltaic power station subsystem 5 is used as an independent main power supply, the electric power for self-load at night is provided by the public power distribution network 4, the new energy power generation subsystem and the industrial electromagnetic heating device 1 are connected by an alternating current transmission method, and the other systems are arranged in the same manner, that is, the embodiment is the present embodiment.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a cold, heat, electricity trigeminy supplies new forms of energy storage energy supply and peak shaving system which characterized in that includes: the system comprises a new energy power generation subsystem, an industrial electromagnetic heating device, a molten salt storage tank subsystem, a molten salt type heat supply subsystem and a public power distribution network;

the new energy power generation subsystem provides electric energy for the industrial electromagnetic heating device, the self-loaded public power distribution network; the new energy power generation subsystem comprises: the photovoltaic power station is used as a main power supply in daytime, and part of the wind generating sets are used as standby power supplies at night or in failure; the wind generating set is used as an independent main power supply; the photovoltaic power station is made into three types of independent main power sources; the photovoltaic power station subsystem comprises a photovoltaic component, a grid-connected inverter, a transformer, a grid-connected electric energy metering device, a user bus and a gateway electric energy metering device, wherein one part of electric energy generated by the photovoltaic component is transmitted to the industrial electromagnetic heating device through a wire, the other part of electric energy is transmitted to the user bus through a wire, one part of electric energy on the user bus is used for supplying power for a self-load of the molten salt storage tank subsystem and a self-load of the molten salt type heat supply subsystem, and the other part of residual electric energy on the user bus is transmitted to a public power distribution network through the gateway electric energy metering device; the wind power generation subsystem comprises a wind power generator set, a rectifying device, an accumulator jar, a grid-connected inverter, a transformer, a grid-connected electric energy metering device, a user bus and a gateway electric energy metering device, wherein the grid-connected inverter, the transformer, the grid-connected electric energy metering device, the user bus and the gateway electric energy metering device can be shared by the photovoltaic power station subsystem;

the industrial electromagnetic heating device converts most of electric energy of the new energy power generation subsystem into heat energy to be stored by molten salt, and the heat energy can be used for subsequent civil heat supply and can also be used for primary peak regulation of a power grid; the industrial electromagnetic heating device is a high-efficiency industrial heating device, is heated by utilizing an electromagnetic eddy current principle, and mainly comprises a rectifying element, a silicon-controlled element, an electromagnetic coil and a control loop, wherein the rectifying element converts alternating current into direct current firstly and then into variable-frequency alternating current through the silicon-controlled element, the alternating current flows through the lower part of the molten salt storage tank or the electromagnetic coil wound on the outer wall of the molten salt storage tank to generate high-frequency magnetic lines, so that the molten salt storage tank is heated by utilizing the eddy current principle, and electric energy generated by a new energy power generation subsystem is converted into molten salt heat energy to be stored;

the public power distribution network receives redundant electric energy of the new energy power generation subsystem, and provides standby power for the industrial electromagnetic heating device, the molten salt storage tank subsystem and the molten salt type heat supply subsystem when the new energy power generation subsystem breaks down or is stopped;

the molten salt storage tank subsystem is connected with the industrial electromagnetic heating device and is used for storing and circulating the molten salt; fused salt storage tank divides system includes fused salt storage tank, valve, molten salt pump and flowmeter, the fused salt storage tank is equipped with the first export of lower part, the first entry of lower part and the first entry of upper portion, the first export of lower part of fused salt storage tank passes through the pipeline intercommunication the entry of molten salt pump, the flowmeter install in on the pipeline, the molten salt pump is followed the hot liquid fused salt of fused salt storage tank extraction, sends to fused salt formula heat supply branch system through the pipeline, three pipelines are divided in the export of fused salt pump: the first outlet pipe is communicated with the corresponding valve and then communicated with the upper first inlet;

the molten salt type heat supply subsystem is communicated with the molten salt storage tank subsystem through a pipeline and heats circulating water and condensed water of a heat supply network by utilizing molten salt heat energy through corresponding heat exchangers, so that heat is supplied to central heat supply users, domestic hot water is provided, and steam is provided; the molten salt formula heat supply subsystem includes: the system comprises a fused salt hot water heat exchanger, a heat network circulating pump, a chemical water making tank, a condensed water recovery tank, a condensed water pump, a fused salt condensed water heater, a fused salt steam generator and a fused salt steam superheater, wherein a second outlet pipe is communicated with the fused salt hot water heat exchanger through a pipeline provided with a valve, the heat network circulating pump is communicated with the fused salt hot water heat exchanger through a pipeline and is used for sending hot network circulating water to the fused salt hot water heat exchanger for heat exchange, the circulating water is heated and then sent to a centralized heat supply user for heat supply, circulating water of the centralized heat supply user returns to an inlet of the heat network circulating pump for continuous circulation, an inlet of the heat network circulating pump is communicated with the chemical water making tank, and fresh water can be supplemented through the chemical water making tank when the; the third outlet pipe is sequentially communicated with the molten salt type steam superheater, the molten salt type steam generator and the molten salt type condensate water heater through pipelines, the third outlet pipe is used for heating the condensate water into hot water or steam, the hot water or the steam is used for providing domestic hot water and providing steam, the steam can be used as common industrial heating steam, if needed, the steam can be supplied to the steam turbine power generation unit system for generating power again, the power grid depth is matched for peak shaving, steam is condensed and recovered to the condensate water recovery water tank through a pipeline, the condensate pump is communicated with the pipeline of the condensate water recovery water tank and used for pumping water from the condensate water recovery water tank, the steam is sequentially sent to the molten salt type condensate water heater, the molten salt type steam generator and the molten salt type steam superheater according to the flow to absorb heat, and fresh water can be supplemented through the chemical water production water.

2. The cold, hot and electricity triple co-generation new energy storage, energy supply and peak shaving system according to claim 1, wherein the molten salt type heat supply subsystem is provided with a return pipeline, the return pipeline is communicated with a molten salt hot water heat exchanger and a molten salt type condensate water heater and converges to the first inlet in the lower part of the molten salt storage tank, and cold molten salt after heat release is returned to the molten salt storage tank.

3. The system of claim 1, wherein the industrial electromagnetic heating device is connected to each new energy power generation subsystem in a direct current transmission mode and an alternating current transmission mode.

4. The cold, heat and electricity triple-generation new energy storage, energy supply and peak shaving system according to claim 3, wherein the direct current transmission mode is as follows: one part of electric energy generated by the new energy power generation subsystem is transmitted to a silicon controlled element of the industrial electromagnetic heating device through a wire provided with a direct current breaker, the other part of the electric energy is transmitted to the user bus through a grid-connected inverter, a transformer and an electric energy metering device which are sequentially connected through the wire, the user bus is connected with the rectifying element through the wire to serve as a standby power supply, and the rectifying element is directly connected with the silicon controlled element through the wire; the alternating current transmission mode is as follows: the electric energy generated by the new energy power generation subsystem directly reaches the user bus through a grid-connected inverter, a transformer and an electric energy metering device which are sequentially connected through a lead, the user bus is connected with the rectifying element through a lead to serve as a main power supply, and when the new energy power generation subsystem is in fault or temporarily stops using, a standby power supply is provided for each power load through the user bus.

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