CN217875800U - Carbon neutralization intelligent cogeneration and transmission and distribution system based on injection thermoelectric decoupling - Google Patents
Carbon neutralization intelligent cogeneration and transmission and distribution system based on injection thermoelectric decoupling Download PDFInfo
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- 238000002347 injection Methods 0.000 title claims abstract description 41
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000006386 neutralization reaction Methods 0.000 title claims abstract description 15
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 136
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- 230000002093 peripheral effect Effects 0.000 claims description 47
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- 239000003546 flue gas Substances 0.000 claims description 39
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Abstract
A carbon neutralization intelligent cogeneration and transmission and distribution system based on injection thermoelectric decoupling belongs to the technical field of cogeneration and centralized heating. Aiming at a thermoelectric production and transmission and distribution supply system under the carbon neutralization condition, a thermoelectric power plant adopting injection thermoelectric decoupling is used as a core hub for energy production, transmission and distribution and intelligent regulation, and intelligent regulation is carried out on a centralized heat supply and power supply network. The system is provided with a high-pressure injection decoupling device, a medium-pressure injection heat pump and a low-pressure injection heat pump to realize maximum heat supply, eliminate cold end loss and improve heat supply flexibility; the variation range of the load factor of cogeneration power supply is 0-100% to match the peak load demand of the power grid, and the zero-activity switching and the addition and subtraction of the thermoelectric load can be realized in quasi-real time. The method and the device combine the adjustment requirements of the carbon neutralization power and heat supply system, provide basic technical conditions and guarantee for constructing an intelligent system, and provide basic technical support for future survival value and development direction of the thermal power plant under the condition of the double-carbon era.
Description
Technical Field
The utility model relates to a carbon neutralization intelligence cogeneration and transmission and distribution system based on draw and penetrate thermoelectric decoupling system belongs to cogeneration and central heating technical field.
Background
With the establishment of national decision targets of 2030 year carbon peak and 2060 year carbon neutralization, the future energy revolution of China inevitably requires more substantial reduction of energy consumption, particularly reduction of fossil energy consumption, and an intelligent combined operation system for power and heat production, distribution and use centered on clean power and heat supply is established. In the background of this time, revolutionary technological innovation and engineering realization forms are also necessary in the fields of electricity and heat.
In terms of a heat supply heat source and a heat supply system, an original technical system mainly based on fossil energy heat supply is required to be comprehensively optimized and reformed, various waste heat resources of high-energy-consumption industrial enterprises, natural energy such as solar energy, geothermal energy and air energy and a heat pump heat supply mode of the natural energy are fully utilized, the heat supply system becomes one of main alternative forms for greatly reducing the fossil energy heat supply, and local heat supply requirements are borne in the supply range of a heat source; meanwhile, part of fossil energy and the heat supply form of cogeneration of heat and power are reserved, a multi-source complementary centralized heat supply production, transmission and distribution and use system is established, and is organically combined with the local and distributed heat supply systems, the distributed heat storage, the cross-season heat storage and the like, interconnection and complementation are performed when necessary, and a novel intelligent operation service heat supply network system adaptive to the local and distributed heat supply systems needs to be established.
According to related research and reports, under a future carbon neutralization system, the main waste heat resource sources and the scale thereof are estimated as follows. Nuclear power waste heat: in the future, 2 hundred million kW nuclear power is built in the coastal areas of east China, wherein at least 1 hundred million kW nuclear power is built in the coastal areas of north from Hongyun harbor to Dalian. The power generation is expected to be 7500-8000 hundred million kWh. The heat generation per year is about 32 billion GJ calculated as the thermoelectric ratio of 1.2. Thermal power waste heat: in order to ensure the stability of a power grid under the condition of large-scale renewable energy access, 6 hundred million kW of thermal power is expected to be reserved in China in the future, the annual power generation amount is 1.5 trillion kWh, and considering that half of the thermal power is located in the northern area, the residual heat provided in winter is about 18 million GJ. Industrial waste heat: the industrial waste heat generated in the production process of metallurgy, chemical industry and building materials reserved in China is about 15 hundred million GJ in the future. The utilization of the heat is considered to be capable of recovering 70% of the heat, and the heat available for heating in cities and towns is about 45 hundred million GJ (16 million GJ is stored in non-heating seasons, and is extracted for heating in heating seasons). The total heat supply of 55 hundred million GJ can be realized by combining the technologies of waste incineration, reclaimed water source heat pump and the like. The heat supply gaps of the rest parts can be provided by considering a distributed heating mode mainly comprising various types of heat pumps.
For power supply and power supply systems, various zero-carbon power supplies, such as wind-light water core and biomass, provide power output of about 80% or more, while the power supply proportion of the current fossil energy power plant with high energy consumption, high pollution and high emission must be reduced to about 20% or less, but considering that other zero-carbon power supplies except nuclear power often have the adverse effects of seasonality, intermittence, large power change and the like, the requirements are as follows: firstly, the electricity can be consumed in a larger proportion in a peripheral area through local consumption or storage as far as possible, and the surplus electricity is supplied by a public power grid in a supplementing way or when the surplus electricity is insufficient, so that the long-time power supply requirement of the public power grid is reduced as much as possible, and the optimal power grid supply and demand balance is realized; secondly, the thermal power plant which is convenient for large-scale peak regulation operation becomes a peak regulation power supply of the whole public power grid more and more, and plays a role of absorbing public power grid fluctuation and playing a role of main force and force balance, and meanwhile, the thermal power plant needs to meet heat supply requirements to be borne. Therefore, the functional positioning of the power supply system of the thermal power plant under the carbon neutral condition determines that the thermal power plant has to have comprehensive thermoelectric decoupling and operation flexibility adjustment capability, the existing thermoelectric decoupling technology cannot completely meet the flexibility adjustment requirement of the thermal power plant in a new era at present, and a comprehensive thermoelectric decoupling thermal power flexibility technical mode must be developed.
The currently commonly used thermoelectric decoupling schemes and their main problems are summarized as follows: the heat storage scheme and the electric boiler scheme have large occupied area and large investment scale and cannot realize comprehensive deep decoupling; the low pressure cylinder zero-output transformation comprises an optical axis scheme and a scheme of directly reducing or closing the steam inlet quantity of the low pressure cylinder and additionally introducing a small quantity of cooling steam to cool the final stage and a steam outlet, has little influence on the increase of the heat supply quantity and needs to be matched for season switching; the high and low side combined steam distribution scheme has the problems that when the power generation load rate is low, the steam inlet amount of a steam turbine is greatly reduced, so that the steam inlet pressure of a reheater is greatly reduced, the volume flow is greatly increased, the through-flow capacity and the heat exchange amount of the reheater are greatly reduced, the smoke temperature at the outlet of the reheater is difficult to effectively reduce, and the reheater and a heating surface behind the reheater are overtemperature and damaged; the power generation load rate cannot be effectively reduced by punching a cylinder, extracting steam, heating by low-vacuum circulating water and the like; the main steam is directly used for punching steam extraction, or the reheater cold section pipeline (cold re) punching steam extraction at the steam exhaust outlet of the high-pressure cylinder, or the hot section pipeline (hot re) punching steam extraction at the outlet of the reheater can greatly reduce the power generation load rate, but when the steam extraction amount is large, a series of safety problems such as reheater overheating, turbine axial thrust overrun and the like are inevitably caused.
A source network integrated production, supply and regulation system of an intelligent heat supply network and an intelligent power grid under the carbon neutralization condition can be perfectly butted and supported by adopting technical measures based on an injection type thermoelectric decoupling device, an injection type heat pump and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at and task are, require, the resource is rare, supply system and requirement to electric power and heating power demand characteristics in the carbon of above-mentioned and under the condition on the basis of the existing thermal power plant injection type thermoelectric decoupling zero patent of qinghua university and the big celestial worker energy technology institute of Beijing or special technique, construct brand-new thermal power plant-based comprehensive flexibility adjustment of cogeneration and production supply system, provide basic technical condition and guarantee for constructing intelligent heat supply network and the intelligent power grid under the carbon and the condition.
The utility model discloses a concrete description is: the utility model provides a carbon neutralization intelligence combined heat and power generation and transmission and distribution system based on draw and penetrate thermoelectric decoupling, includes boiler and waste heat recovery subsystem A1, steam turbine and thermoelectric decoupling subsystem A2, thermoelectric intelligence transmission and distribution subsystem A3 and connecting line, its characterized in that: the boiler and waste heat recovery subsystem A1 comprises a boiler body 1, a blower 4, a dust remover 10, an induced draft fan 9, a desulfurizing tower 8, and a steam heat-carrying circulating flue gas waste heat recovery module 6, the steam turbine and thermoelectric decoupling subsystem A2 comprises a high-pressure cylinder 11, a medium-pressure cylinder 12, a low-pressure cylinder 13, a generator 14, a condenser 15, a low-pressure heater 16, a deaerator 17, a high-pressure heater 18, and a cooling tower 19, and is further provided with a high-pressure ejector 20, a medium-pressure ejector heat pump 26, a low-pressure ejector heat pump 28, a matching decoupling component and a connecting pipeline thereof, the thermoelectric intelligent transmission and distribution subsystem A3 comprises a zero-carbon power generation group, a thermoelectric user group and a connecting pipeline thereof, wherein the zero-carbon power generation group comprises a photoelectric device E1, a wind power device E2, a nuclear power device E3, a biomass thermoelectric device E4 and a hydroelectric device E5, and the thermoelectric user group comprises a first peripheral thermoelectric user group U1, a second peripheral thermoelectric user group U2, a third peripheral user group U3, a fourth user group and a fifth thermoelectric user group U5; wherein the inlet of the high pressure cylinder 11 is connected with the outlet of the superheater 3 of the boiler body 1 and the inlet of the original high bypass pipe valve 23, and is also connected with the driving steam inlet of the high pressure ejector 20 through a newly added high pressure bypass valve 24, the low pressure steam inlet of the high pressure ejector 20 is connected with the steam outlet of the high pressure cylinder 11 and the outlet of the original high bypass pipe valve 23, and is also connected with the inlet of the cold check valve 22, the ejection steam outlet of the high pressure ejector 20 is connected with the steam inlet of the main steam desuperheater 21, the steam outlet of the main steam desuperheater 21 is respectively connected with the outlet of the cold check valve 22 and the inlet of the reheater 2 of the boiler body 1, and the steam outlet of the reheater 2 is connected with the steam inlet of the intermediate pressure cylinder 12 and is also connected with the inlet of the high pressure desuperheater 25; an outlet of the high-pressure temperature-reducing pressure reducer 25 is communicated with a first heat consumer Y1 and is connected with a driving steam inlet of a medium-pressure injection heat pump 26, a medium-pressure condenser 27 of the medium-pressure injection heat pump 26 is provided with an injection steam exhaust inlet, a condensed water C outlet, a heated water inlet and a heated water outlet, and a low-pressure steam inlet of the medium-pressure injection heat pump 26 is communicated with a second heat consumer Y2 besides being connected with a steam exhaust port of a medium-pressure cylinder 12, a steam inlet of a low-pressure cylinder 13 and a steam inlet of a heat supply network heater 30; the steam outlet of the intermediate pressure cylinder 12 is also connected with a steam inlet of a low-pressure heater 16, a steam inlet of a deaerator 17 and a driving steam inlet of a low-pressure injection heat pump 28, a low-pressure steam inlet of the low-pressure injection heat pump 28 is connected with a steam outlet of a low-pressure cylinder 13 and a steam inlet of a condenser 15, a low-pressure condenser 29 of the low-pressure injection heat pump 28 is provided with an injection steam outlet, a condensed water outlet, a heated water inlet and a heated water outlet, and the condensed water outlet is connected with a condensed water outlet of the condenser 15 and a condensed water inlet of the low-pressure heater 16; a heated water inlet of the condenser 15 is respectively connected with a cooling water outlet of the cooling tower 19, a heated water inlet of the waste heat plate exchanger 5 of the steam heat-carrying circulating type flue gas waste heat recovery module 6 and a power plant return water inlet of a return water main pipe 32 of the heat supply network return water H, a heated water outlet of the condenser 15 is connected with a heated water inlet of the low-pressure condenser 29, a heated water outlet of the low-pressure condenser 29 is respectively connected with a heated water inlet of the heat supply network heater 30 and a heated water outlet of the waste heat plate exchanger 5, a heated water outlet of the heat supply network heater 30 is connected with a heated water inlet of the medium-pressure condenser 27, and a heated water outlet of the medium-pressure condenser 27 is connected with a power plant water supply inlet of a water supply main pipe 31 of the heat supply network G; a power public output port of the generator 14 is connected with a power plant inlet end of a public power grid main line W; the public power grid main line W is also respectively connected with power public output ports of the photoelectric device E1, the wind power device E2, the nuclear power device E3, the biomass thermoelectric device E4 and the hydroelectric device E5, a power local output end of the photoelectric device E1 is connected with a power input end of a first peripheral thermoelectric user group U1, a power local output end of the wind power device E2 is connected with a power input end of a second peripheral thermoelectric user group U2, a power local output end of the nuclear power device E3 is connected with a power input end of a third peripheral thermoelectric user group U3, a power local output end of the biomass thermoelectric device E4 is connected with a power input end of a fourth peripheral thermoelectric user group U4, and the public power grid main line W is also connected with a power input end of a fifth thermoelectric user group U5; the water supply main pipe 31 is also connected with a water supply inlet of the first peripheral thermoelectric user group U1, a water supply inlet of the second peripheral thermoelectric user group U2, a water supply inlet of the fifth thermoelectric user group U5, a water supply inlet of the third peripheral thermoelectric user group U3, a water supply outlet of the nuclear power plant E3, a water supply inlet of the fourth peripheral thermoelectric user group U4, and a water supply outlet of the biomass thermoelectric device E4, and the water return main pipe 32 is also connected with a water return outlet of the first peripheral thermoelectric user group U1, a water return outlet of the second peripheral thermoelectric user group U2, a water return outlet of the fifth thermoelectric user group U5, a water return outlet of the third peripheral thermoelectric user group U3, a water return inlet of the nuclear power plant E3, a water return outlet of the fourth peripheral thermoelectric user group U4, and a water return inlet of the biomass thermoelectric device E4.
The flue gas waste heat recovery integrated unit 7 of the water vapor heat-carrying circulating type flue gas waste heat recovery module 6 is provided with an inlet of outdoor air K, an air outlet, an outlet of flue gas inlet and clean flue gas Yp, wherein the air outlet is connected with the air inlet of the air feeder 4, the air outlet of the air feeder 4 is connected with the air inlet of the boiler body 1, the flue gas outlet of the boiler body 1 is connected with the flue gas inlet of the flue gas waste heat recovery integrated unit 7 through a dust remover 10, a draught fan 9, a desulfurizing tower 8 is communicated with the flue gas inlet of the flue gas waste heat recovery integrated unit 7, the high-temperature waste heat water outlet of the flue gas waste heat recovery integrated unit 7 is connected with the high-temperature side inlet of the waste heat recovery integrated unit 5, and the high-temperature side outlet of the waste heat recovery integrated unit 7 is connected with the spray water inlet of the flue gas waste heat recovery integrated unit 7.
The high-pressure ejector 20, the medium-pressure ejection heat pump 26 and the low-pressure ejection heat pump 28 are all in a stepless regulation joint type structure.
The technical effects and advantages of the utility model are: aiming at a thermoelectric production and transmission and distribution supply system under the carbon neutralization condition, a thermoelectric power plant adopting injection thermoelectric decoupling is used as a core hub for energy production, transmission and distribution and intelligent regulation, the centralized heating and power supply network is intelligently regulated, and the system has a fundamental position. The realization mode of the heat supply flexibility is as follows: the high-pressure injection decoupling device and the medium-pressure and low-pressure injection heat pump are arranged to realize maximum heat supply. The realization mode of the power supply flexibility is as follows: the variation range of the power supply load rate can be 0-100% according to the peak regulation requirement of a power grid in the future. The peak regulation requirements of the power supply system and the heat power supply system are matched, the power and heat power output of the cogeneration system is adjusted, and basic technical conditions and guarantee are provided for constructing an intelligent system. Meanwhile, aiming at the time requirement of the reduction of the magnitude order of fossil energy, a basic technical support function is provided for the future survival value and the development direction of the thermal power plant under the condition of the double-carbon time.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
The numbering and naming of the various components in FIG. 1 are as follows.
The system comprises a boiler body 1, a reheater 2, a superheater 3, a blower 4, a waste heat plate heat exchanger 5, a steam heat-carrying circulating type flue gas waste heat recovery module 6, a flue gas waste heat recovery integrated unit 7, a desulfurizing tower 8, an induced draft fan 9, a dust remover 10, a high-pressure cylinder 11, an intermediate-pressure cylinder 12, a low-pressure cylinder 13, a generator 14, a condenser 15, a low-pressure heater 16, a deaerator 17, a high-pressure heater 18, a cooling tower 19, a high-pressure ejector 20, a main steam desuperheater 21, a cold check valve 22, an original high-pressure bypass valve 23, a newly-added high-pressure bypass valve 24, a high-pressure desuperheater 25, an intermediate-pressure ejector heat pump 26, a low-pressure ejector heat pump 28, a low-pressure condenser 29, a heat grid heater 30, a main water supply pipe 31, a return water main pipe 32, a boiler and waste heat recovery subsystem A1, a steam turbine and thermoelectric decoupling subsystem A2, a thermoelectric intelligent power distribution subsystem A3, condensed water C, a photoelectric device E1, a wind power device E2, a nuclear power device E3, a clean water device E4, a biomass device E5, a heat grid G, a hot grid water supply network K, a hot air network K, a fourth peripheral user U1, a third user U2, a peripheral user U3, a peripheral user U4, a third user group, a third user group, a peripheral user group, a third user group and a user group.
Detailed Description
Fig. 1 is a system schematic and embodiment of the present invention.
The specific embodiment of the present invention is as follows.
A carbon neutralization intelligent cogeneration and transmission and distribution system based on injection thermoelectric decoupling comprises a boiler and waste heat recovery subsystem A1, a steam turbine and thermoelectric decoupling subsystem A2, a thermoelectric intelligent transmission and distribution subsystem A3 and a connecting pipeline, wherein the boiler and waste heat recovery subsystem A1 comprises a boiler body 1, a blower 4, a dust remover 10, an induced draft fan 9 and a desulfurizing tower 8, and is further provided with a steam heat-carrying circulation type flue gas waste heat recovery module 6, the steam turbine and thermoelectric decoupling subsystem A2 comprises a high-pressure cylinder 11, a medium-pressure cylinder 12, a low-pressure cylinder 13, a generator 14, a condenser 15, a low heater 16, a deaerator 17, a high heater 18 and a cooling tower 19, and is further provided with a high-pressure ejector 20, a medium-pressure ejector heat pump 26, a low-pressure ejector heat pump 28 and matched decoupling components and connecting pipelines thereof, the thermoelectric intelligent transmission and distribution subsystem A3 comprises a zero-carbon power generation group, a thermoelectric user group and connecting pipelines thereof, wherein the zero-carbon power generation group comprises a photoelectric device E1, a wind power device E2, a biomass device E4 and a thermoelectric device E5, the thermoelectric user group comprises a fourth peripheral user group, a fourth user group U1, a fourth user group and a fifth user group; wherein the inlet of the high pressure cylinder 11 is connected with the outlet of the superheater 3 of the boiler body 1 and the inlet of the original high bypass pipe valve 23, and is also connected with the driving steam inlet of the high pressure ejector 20 through a newly added high pressure bypass valve 24, the low pressure steam inlet of the high pressure ejector 20 is connected with the steam outlet of the high pressure cylinder 11 and the outlet of the original high bypass pipe valve 23, and is also connected with the inlet of the cold check valve 22, the ejection steam outlet of the high pressure ejector 20 is connected with the steam inlet of the main steam desuperheater 21, the steam outlet of the main steam desuperheater 21 is respectively connected with the outlet of the cold check valve 22 and the inlet of the reheater 2 of the boiler body 1, and the steam outlet of the reheater 2 is connected with the steam inlet of the intermediate pressure cylinder 12 and is also connected with the inlet of the high pressure desuperheater 25; an outlet of the high-pressure temperature-reducing pressure reducer 25 is communicated with a first heat consumer Y1 and is connected with a driving steam inlet of a medium-pressure injection heat pump 26, a medium-pressure condenser 27 of the medium-pressure injection heat pump 26 is provided with an injection steam exhaust inlet, a condensed water C outlet, a heated water inlet and a heated water outlet, and a low-pressure steam inlet of the medium-pressure injection heat pump 26 is communicated with a second heat consumer Y2 besides being connected with a steam exhaust port of a medium-pressure cylinder 12, a steam inlet of a low-pressure cylinder 13 and a steam inlet of a heat supply network heater 30; the steam outlet of the intermediate pressure cylinder 12 is also connected with a steam inlet of a low-pressure heater 16, a steam inlet of a deaerator 17 and a driving steam inlet of a low-pressure injection heat pump 28, a low-pressure steam inlet of the low-pressure injection heat pump 28 is connected with a steam outlet of a low-pressure cylinder 13 and a steam inlet of a condenser 15, a low-pressure condenser 29 of the low-pressure injection heat pump 28 is provided with an injection steam outlet, a condensed water outlet, a heated water inlet and a heated water outlet, and the condensed water outlet is connected with a condensed water outlet of the condenser 15 and a condensed water inlet of the low-pressure heater 16; a heated water inlet of the condenser 15 is respectively connected with a cooling water outlet of the cooling tower 19, a heated water inlet of the waste heat plate exchanger 5 of the steam heat-carrying circulating type flue gas waste heat recovery module 6 and a power plant return water inlet of a return water main pipe 32 of the heat supply network return water H, a heated water outlet of the condenser 15 is connected with a heated water inlet of the low-pressure condenser 29, a heated water outlet of the low-pressure condenser 29 is respectively connected with a heated water inlet of the heat supply network heater 30 and a heated water outlet of the waste heat plate exchanger 5, a heated water outlet of the heat supply network heater 30 is connected with a heated water inlet of the medium-pressure condenser 27, and a heated water outlet of the medium-pressure condenser 27 is connected with a power plant water supply inlet of a water supply main pipe 31 of the heat supply network G; a power public output port of the generator 14 is connected with a power plant inlet end of a public power grid main line W; the public power grid main line W is also respectively connected with power public output ports of the photoelectric device E1, the wind power device E2, the nuclear power device E3, the biomass thermoelectric device E4 and the hydroelectric device E5, a power local output end of the photoelectric device E1 is connected with a power input end of a first peripheral thermoelectric user group U1, a power local output end of the wind power device E2 is connected with a power input end of a second peripheral thermoelectric user group U2, a power local output end of the nuclear power device E3 is connected with a power input end of a third peripheral thermoelectric user group U3, a power local output end of the biomass thermoelectric device E4 is connected with a power input end of a fourth peripheral thermoelectric user group U4, and the public power grid main line W is also connected with a power input end of a fifth thermoelectric user group U5; the water supply main pipe 31 is also connected with a water supply inlet of the first peripheral thermoelectric user group U1, a water supply inlet of the second peripheral thermoelectric user group U2, a water supply inlet of the fifth thermoelectric user group U5, a water supply inlet of the third peripheral thermoelectric user group U3, a water supply outlet of the nuclear power plant E3, a water supply inlet of the fourth peripheral thermoelectric user group U4, and a water supply outlet of the biomass thermoelectric device E4, and the water return main pipe 32 is also connected with a water return outlet of the first peripheral thermoelectric user group U1, a water return outlet of the second peripheral thermoelectric user group U2, a water return outlet of the fifth thermoelectric user group U5, a water return outlet of the third peripheral thermoelectric user group U3, a water return inlet of the nuclear power plant E3, a water return outlet of the fourth peripheral thermoelectric user group U4, and a water return inlet of the biomass thermoelectric device E4.
The flue gas waste heat recovery integrated unit 7 of the water vapor heat-carrying circulating type flue gas waste heat recovery module 6 is provided with an inlet of outdoor air K, an air outlet, an outlet of flue gas inlet and clean flue gas Yp, wherein the air outlet is connected with the air inlet of the air feeder 4, the air outlet of the air feeder 4 is connected with the air inlet of the boiler body 1, the flue gas outlet of the boiler body 1 is connected with the flue gas inlet of the flue gas waste heat recovery integrated unit 7 through a dust remover 10, a draught fan 9, a desulfurizing tower 8 is communicated with the flue gas inlet of the flue gas waste heat recovery integrated unit 7, the high-temperature waste heat water outlet of the flue gas waste heat recovery integrated unit 7 is connected with the high-temperature side inlet of the waste heat recovery integrated unit 5, and the high-temperature side outlet of the waste heat recovery integrated unit 7 is connected with the spray water inlet of the flue gas waste heat recovery integrated unit 7.
The high-pressure ejector 20, the medium-pressure ejector heat pump 26 and the low-pressure ejector heat pump 28 are all in a stepless regulation joint type structure.
It should be noted that, on the basis of the aforementioned "injection-based thermoelectric decoupling technology" developed jointly by qinghua university and beijing qing dao astronomical energy technology research institute, its series of patents and proprietary technology, and its dedicated equipment, this patent proposes an innovative technical system configuration that automatically implements electric power and thermal power production supply and its cogeneration system full-load thermoelectric decoupling and flexibility modification, and according to this overall solution, there may be different implementation measures and different structural implementation apparatuses, and the above-mentioned implementation manner is only one or several of them, and any other similar simple modified implementation manner falls within the protection scope of this patent.
Claims (3)
1. The utility model provides a carbon neutralization intelligence combined heat and power generation and transmission and distribution system based on draw and penetrate thermoelectric decoupling zero, includes boiler and waste heat recovery subsystem (A1), steam turbine and thermoelectric decoupling zero subsystem (A2), thermoelectric intelligence transmission and distribution subsystem (A3) and connecting line, its characterized in that: the boiler and waste heat recovery subsystem (A1) comprises a boiler body (1), a blower (4), a dust remover (10), an induced draft fan (9) and a desulfurizing tower (8), and is further provided with a steam heat-carrying circulating type flue gas waste heat recovery module (6), the steam turbine and thermoelectric decoupling subsystem (A2) comprises a high-pressure cylinder (11), a medium-pressure cylinder (12), a low-pressure cylinder (13), a generator (14), a condenser (15), a low heater (16), a deaerator (17), a high heater (18) and a cooling tower (19), and is further provided with a high-pressure ejector (20), a medium-pressure ejector heat pump (26), a low-pressure ejector heat pump (28), a matched decoupling component and a connecting pipeline thereof, the thermoelectric intelligent power transmission and distribution subsystem (A3) comprises a zero-carbon power generation group, a thermoelectric user group and a connecting pipeline thereof, wherein the zero-carbon power generation group comprises a photoelectric device (E1), a wind power device (E2), a nuclear power device (E3), a biomass thermoelectric device (E4) and a hydroelectric device (E5), and the thermoelectric user group comprises a first peripheral thermoelectric user group (U1), a fourth peripheral user group (U2), a fifth user group (U5); wherein the inlet of the high pressure cylinder (11) is connected with the outlet of the superheater (3) of the boiler body (1) and the inlet of an original high side pipe valve (23) through a newly-added high pressure side pipe valve (24), the inlet of the high pressure ejector (20) is connected with the driving steam inlet of the high pressure ejector (20), the low pressure steam inlet of the high pressure ejector (20) is connected with the steam outlet of the high pressure cylinder (11) and the outlet of the original high side pipe valve (23) and also connected with the inlet of a cold re-check valve (22), the injection steam outlet of the high pressure ejector (20) is connected with the steam inlet of a main steam desuperheater (21), the steam outlet of the main steam desuperheater (21) is respectively connected with the outlet of the cold re-check valve (22) and the inlet of a reheater (2) of the boiler body (1), and the steam outlet of the reheater (2) is connected with the steam inlet of the intermediate pressure cylinder (12) and also connected with the inlet of the high pressure desuperheater (25); an outlet of the high-pressure temperature-reducing pressure reducer (25) is communicated with a first heat consumer (Y1) and is connected with a driving steam inlet of the medium-pressure injection heat pump (26), a medium-pressure condenser (27) of the medium-pressure injection heat pump (26) is provided with an injection steam exhaust inlet, a condensed water (C) outlet, a heated water inlet and a heated water outlet, and a low-pressure steam inlet of the medium-pressure injection heat pump (26) is communicated with a second heat consumer (Y2) besides being connected with a steam exhaust port of the medium-pressure cylinder (12), a steam inlet of the low-pressure cylinder (13) and a steam inlet of the heat network heater (30); the steam outlet of the intermediate pressure cylinder (12) is also connected with the steam inlet of the low pressure heater (16), the steam inlet of the deaerator (17) and the driving steam inlet of the low pressure injection heat pump (28), the low pressure steam inlet of the low pressure injection heat pump (28) is connected with the steam outlet of the low pressure cylinder (13) and the steam inlet of the condenser (15), the low pressure condenser (29) of the low pressure injection heat pump (28) is provided with an injection steam outlet, a condensed water outlet, a heated water inlet and a heated water outlet, and the condensed water outlet is connected with the condensed water outlet of the condenser (15) and the condensed water inlet of the low pressure heater (16); a heated water inlet of a condenser (15) is respectively connected with a cooling water outlet of a cooling tower (19), a heated water inlet of a waste heat plate exchanger (5) of a steam heat-carrying circulating type flue gas waste heat recovery module (6) and a power plant return water inlet of a return water main pipe (32) of a heat supply network return water (H), a heated water outlet of the condenser (15) is connected with a heated water inlet of a low-pressure condenser (29), a heated water outlet of the low-pressure condenser (29) is respectively connected with a heated water inlet of a heat supply network heater (30) and a heated water outlet of the waste heat plate exchanger (5), a heated water outlet of the heat supply network heater (30) is connected with a heated water inlet of a medium-pressure condenser (27), and a heated water outlet of the medium-pressure condenser (27) is connected with a power plant water supply inlet of a water supply main pipe (31) of a heat supply network (G); the power public output port of the generator (14) is connected with the power plant inlet end of a public power grid main line (W); the public power grid main line (W) is also respectively connected with power public output ports of the photoelectric device (E1), the wind power device (E2), the nuclear power device (E3), the biomass thermoelectric device (E4) and the hydroelectric device (E5), a power local output end of the photoelectric device (E1) is connected with a power input end of a first peripheral thermoelectric user group (U1), a power local output end of the wind power device (E2) is connected with a power input end of a second peripheral thermoelectric user group (U2), a power local output end of the nuclear power device (E3) is connected with a power input end of a third peripheral thermoelectric user group (U3), a power local output end of the biomass thermoelectric device (E4) is connected with a power input end of a fourth peripheral thermoelectric user group (U4), and the public power grid main line (W) is also connected with a power input end of a fifth thermoelectric user group (U5); the water supply main pipe (31) is also respectively connected with a water supply inlet of the first peripheral thermoelectric user group (U1), a water supply inlet of the second peripheral thermoelectric user group (U2), a water supply inlet of the fifth thermoelectric user group (U5), a water supply inlet of the third peripheral thermoelectric user group (U3), a water supply outlet of the nuclear power device (E3), a water supply inlet of the fourth peripheral thermoelectric user group (U4) and a water supply outlet of the biomass thermoelectric device (E4), and the water return main pipe (32) is also respectively connected with a water return outlet of the first peripheral thermoelectric user group (U1), a water return outlet of the second peripheral thermoelectric user group (U2), a water return outlet of the fifth thermoelectric user group (U5), a water return outlet of the third peripheral thermoelectric user group (U3), a water return inlet of the nuclear power device (E3), a water return outlet of the fourth peripheral thermoelectric user group (U4) and a water return inlet of the biomass thermoelectric device (E4).
2. The carbon neutralization intelligent cogeneration and transmission and distribution system based on injection thermoelectric decoupling as claimed in claim 1, characterized in that the flue gas waste heat recovery integrated unit (7) of the steam heat-carrying circulating flue gas waste heat recovery module (6) is provided with an inlet for outdoor air (K), an air outlet, a flue gas inlet and an outlet for clean flue gas (Yp), wherein the air outlet is connected with the air inlet of the blower (4), the air outlet of the blower (4) is connected with the air inlet of the boiler body (1), the flue gas outlet of the boiler body (1) is communicated with the flue gas inlet of the flue gas waste heat recovery integrated unit (7) through a dust collector (10), an induced draft fan (9), a desulfurizing tower (8), the high-temperature waste heat water outlet of the flue gas waste heat recovery integrated unit (7) is connected with the high-temperature side inlet of the waste heat exchange plate (5), and the high-temperature side outlet of the waste heat exchange plate (5) is connected with the spraying water inlet of the flue gas waste heat recovery integrated unit (7).
3. The carbon neutralization intelligent cogeneration and transmission and distribution system based on ejection thermoelectric decoupling according to claim 1, characterized in that the high-pressure ejector (20), the medium-pressure ejection heat pump (26) and the low-pressure ejection heat pump (28) are all in a stepless regulation joint type structure.
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