CN113153465A - Heat supply and power generation decoupling method and system for improving peak regulation capacity of heat supply unit - Google Patents
Heat supply and power generation decoupling method and system for improving peak regulation capacity of heat supply unit Download PDFInfo
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- CN113153465A CN113153465A CN202110485992.1A CN202110485992A CN113153465A CN 113153465 A CN113153465 A CN 113153465A CN 202110485992 A CN202110485992 A CN 202110485992A CN 113153465 A CN113153465 A CN 113153465A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D13/00—Combinations of two or more machines or engines
- F01D13/02—Working-fluid interconnection of machines or engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
Abstract
The invention discloses a heat supply and power generation decoupling system and method for improving peak regulation capacity of a heat supply unit, wherein the method specifically comprises the following steps: when the unit supplies heat to the outside under a higher load, high-parameter media in part of the unit are led out to the heat storage system, and part of heat is stored on the premise of meeting the heat supply requirement; when the unit participates in power grid peak shaving and needs to reduce output to supply heat externally, the steam amount entering the steam turbine is reduced, the output of the steam turbine is reduced, the load reduction and peak shaving operation of the unit is realized, meanwhile, part of steam or hot water is extracted from a heat regeneration system or a heat supply system of the unit to a heat storage system, and the stored heat is absorbed to supply heat externally, so that the heat supply requirement is met; the heat storage module is added in the heat supply unit, decoupling of heat supply and power generation of the unit is achieved, peak shaving of the unit is not limited by heat supply, the peak shaving range of the heat supply unit is enlarged, operation flexibility of the heat supply unit is greatly improved, only one set of heat storage module is added on the existing unit, and the heat storage module has good applicability to new construction and unit reconstruction.
Description
Technical Field
The invention belongs to the technical field of thermal power generation, and particularly relates to a heat supply and power generation decoupling method and system for improving peak shaving capacity of a heat supply unit.
Background
The loading amount of renewable energy resources is increased year by year, so that the proportion of thermal power generation in an energy structure is gradually reduced. Most renewable energy sources have strong randomness, intermittence, uncontrollable property and inverse peak regulation property, so that thermal power generation is needed as a basic load to participate in peak regulation, and the safety of a power grid is ensured. However, as the policy of giving way to new energy by thermal power is further implemented, the load fluctuation of the existing thermal power generating unit is large at present, and the demand of deep peak regulation is more and more urgent. At present, the main power supply in the 'three north' area of China is coal power, wherein the number of the heat supply machine assembling machines accounts for more than 50%, and the load of the heat supply machine unit needs to be maintained at a higher level under the condition of ensuring the heat supply of the machine unit, so that the load cannot be reduced continuously, and the flexibility of the power supply is severely limited.
Therefore, in order to improve the flexibility of the heat supply thermal power unit, the heat supply thermal power unit is suitable for deep peak regulation, and the heat supply and the power generation of the heat supply unit are decoupled, so that the problem to be solved urgently is to improve the flexibility of the heat supply unit.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a heat supply and power generation decoupling method and system for improving the peak regulation capacity of a heat supply unit, which are suitable for deep peak regulation and are used for decoupling the heat supply and the power generation of the heat supply unit.
In order to achieve the purpose, the invention adopts the technical scheme that: a heat supply and power generation decoupling method for improving peak regulation capacity of a heat supply unit comprises the following steps:
when the unit supplies heat to the outside under a higher load, high-parameter media in part of the unit are led out to the heat storage system, and part of heat is stored on the premise of meeting the heat supply requirement;
when the unit participates in power grid peak shaving and needs to reduce output for external heat supply, the steam quantity entering the steam turbine is reduced, the output of the steam turbine is reduced, the load reduction and peak shaving operation of the unit is achieved, meanwhile, the load of the boiler is improved, partial steam extracted from a main steam and a reheating system of the unit directly supplies heat to the outside after exchanging heat with a heat storage system, or partial steam or hot water is extracted from a heat supply system of the unit to the heat storage system, and the stored heat is absorbed to supply heat to the outside, so that the heat supply requirement is met.
The method comprises the following specific steps:
when the unit supplies heat to the outside at a higher load:
the boiler operates between the lowest stable combustion load and the rated load; extracting a high-parameter medium from a heat supply unit and entering a heat storage system; storing the heat of the extracted high-parameter medium, wherein the medium after heat exchange becomes a low-parameter medium with lower quality; the medium with lower quality directly supplies heat to the outside or is sent to a thermal interface of a regenerative system of the unit;
when the unit participates in power grid peak shaving and needs to reduce output to supply heat externally:
keeping the load of the boiler not lower than the lowest stable combustion load; part of steam is extracted from the main steam and reheating system of the unit to exchange heat with the heat storage system, and the heat exchanged steam directly supplies heat to the outside; extracting part of low-parameter steam or hot water from a heat supply main pipe or a heat supply network initial station of a unit; the extracted low-parameter steam or hot water enters a heat storage system to absorb the stored heat, and the steam or hot water with increased heat becomes steam with higher parameter to supply heat to the outside.
The heat storage system is divided into a high heat storage interval, a middle heat storage interval and a low heat storage interval according to the temperature, and the heat of the high-parameter medium is stored by sequentially passing the high-parameter medium through the high interval, the middle interval and the low interval in the heat storage system and continuously exchanging heat with the medium in different heat storage intervals to transfer part of the heat in the high parameter to the heat storage medium and store the heat; the low-parameter steam or hot water absorbs heat by passing through at least one heat storage interval and exchanging heat with a medium in the heat storage interval.
The high-parameter medium is at least one of main steam, reheat steam, steam extraction of a steam turbine, high-temperature flue gas or air-cooled exhaust steam.
The thermodynamic interface of the unit regenerative system comprises a high-pressure heater steam inlet, a high-pressure heater feed water outlet, a deaerator steam inlet, a deaerator feed water outlet, a low-pressure heater steam inlet, a low-pressure heater condensed water inlet and/or a low-pressure heater condensed water outlet.
The unit is a subcritical, supercritical or ultra-supercritical thermal power unit with a heating system, and the unit adopts a coal-electricity unit with any existing grade capacity.
The external heat supply comprises heating steam supply and industrial steam supply.
A heat supply and power generation decoupling system for improving the peak regulation capacity of a heat supply unit comprises any one of the existing heat supply generator unit and a heat storage system; the heat storage system consists of high-temperature, medium-temperature and low-temperature heat storage intervals which are connected in series; the inlet of the heat storage system is communicated with a high-parameter medium pipeline, and the outlet of the heat storage system is communicated with a thermal interface of a unit heat regenerative system; the inlet of the heat storage system is also communicated with a low-parameter steam or hot water pipeline of the unit heat regeneration system, a heat supply main pipe or a heat supply network initial station, and the outlet of the heat storage system is communicated with the heat supply pipeline.
The heat storage medium in the high-temperature heat storage interval is molten salt, the heat storage medium in the medium-temperature heat storage interval is concrete, and the heat storage medium in the low-temperature heat storage interval is hot water.
The thermodynamic interface of the unit regenerative system comprises at least one of a high-pressure heater steam inlet, a high-pressure heater water supply outlet, a deaerator steam inlet, a deaerator water supply outlet, a low-pressure heater steam inlet, a low-pressure heater condensed water inlet and a low-pressure heater condensed water outlet.
Compared with the prior art, the invention has at least the following beneficial effects:
when the unit is under a high load, high-parameter media in part of the unit are led out to the heat storage system, and part of heat is stored on the premise of meeting the heat supply requirement; when the unit participates in power grid peak shaving and needs to reduce output to supply heat externally, load reduction peak shaving is achieved by reducing the steam inlet quantity of the steam turbine and reducing the output of the steam turbine, meanwhile, part of steam or hot water is extracted from a heat return system or a heat supply system of the unit to a heat storage system, and stored heat is absorbed to supply heat externally, so that heat supply requirements are met. The heat storage system supplies heat when the peak load is adjusted again by the heat absorbed by the high load, so that the peak adjusting capacity of the heat supply unit is greatly improved, and the requirement of deep peak adjustment is met.
Furthermore, the heat storage system is provided with a plurality of heat storage intervals, so that heat storage media can be selected according to different requirements of the unit during heat absorption and heat release, the gradient utilization of capacity is realized, and the energy utilization efficiency is improved on the premise of ensuring the flexibility of the unit.
Furthermore, the method does not need to modify a boiler and a steam turbine, only adds a set of heat storage system, and has better applicability to newly built and modified units.
Drawings
FIG. 1 is a schematic diagram of a system in which the present invention may be implemented.
FIG. 2 is a schematic diagram of another system in which the present invention may be implemented to reduce output.
FIG. 3 is a schematic diagram of a system for implementing a load state according to the present invention.
FIG. 4 is a schematic diagram of another system for implementing a load state in accordance with the present invention.
Fig. 5 is a schematic diagram of a system in which the present invention can be implemented at low load.
Fig. 6 is a schematic diagram of another system in which the present invention can be implemented at low load.
Reference numbers in the figures: 1-a boiler; 2-a heat storage system; 3-high pressure cylinder of steam turbine; 4-turbine medium/low pressure cylinder; 51-a first feedwater heater; 52-a second feedwater heater; 5 n-nth feedwater heater; 6-a deaerator; 7-a condenser.
Detailed Description
The invention provides a heat supply and power generation decoupling method and system for improving peak regulation capacity of a heat supply unit, and the invention is further explained by combining a specific embodiment mode.
According to the heat supply and power generation decoupling method and system for improving the peak regulation capacity of the heat supply unit, as shown in fig. 1, when the heat supply unit supplies heat to the outside under a high load, the load of a boiler 1 is kept not lower than the lowest stable combustion load, a high-parameter medium is extracted from the unit and enters a heat storage system 2, and the extracted high-parameter medium can be at least one of steam extracted by a steam turbine, high-temperature flue gas or air-cooled exhaust steam; the heat storage system is divided into a high heat storage interval, a middle heat storage interval and a low heat storage interval according to the temperature; the extracted high-parameter medium enters the corresponding heat storage region according to the medium parameters for heat storage, and the medium with heat loss becomes a low-parameter medium with lower quality and directly supplies heat to the outside or returns to a thermal interface of a unit regenerative system, such as a high-pressure heater steam inlet, a high-pressure heater feed water outlet, a deaerator steam inlet, a deaerator feed water outlet, a low-pressure heater steam inlet, a low-pressure heater condensed water outlet pipeline and/or the like. As shown in fig. 2, when the unit participates in peak shaving of the power grid and needs to reduce output power to supply heat to the outside, the load of the boiler 1 is kept not lower than the lowest stable combustion, and part of low-parameter steam or hot water is extracted from a unit heat return system, a heat supply main pipe or a heat supply network first station; and the extracted low-parameter steam or hot water enters a corresponding heat storage interval according to the medium parameters to exchange heat to absorb the stored heat, and the steam or hot water with increased heat becomes steam with higher parameters to supply heat to the outside.
The present invention is further illustrated by the following specific examples.
Example 1
The heat storage system is configured for the unit and comprises high-temperature, medium-temperature and low-temperature heat storage modules, wherein the high-temperature heat storage module stores heat in molten salt, the medium-temperature heat storage module stores heat in concrete, and the low-temperature heat storage module stores heat in hot water. The main steam pipeline, the steam extraction pipeline and the high-temperature flue gas pipeline of the boiler of the steam turbine are respectively connected with inlets of high-temperature heat storage modules, middle-temperature heat storage modules and low-temperature heat storage modules of the heat storage system, and outlets of the heat storage system are respectively connected with an inlet pipeline of a reheater, an inlet pipeline of a deaerator and a flue gas exhaust pipeline of the boiler.
As shown in fig. 3, when the unit operates at 70% load, the boiler is set to operate at 80% load, part of main steam is extracted from the main steam pipeline before entering the high-pressure cylinder of the steam turbine and enters the high-temperature heat storage module of the heat storage system, exchanges heat with the molten salt medium, and enters the boiler for reheating after being mixed with the exhaust steam of the high-pressure cylinder after exchanging heat; meanwhile, part of extracted steam is extracted from a second-stage steam extraction pipeline of the unit and enters a medium-temperature heat storage module of the heat storage system to exchange heat with concrete, and the extracted steam returns to a deaerator after the heat exchange; meanwhile, part of high-temperature flue gas is extracted from the boiler smoke exhaust pipeline and enters a low-temperature heat storage module of the heat storage system to exchange heat with hot water, and the flue gas is exhausted after heat exchange. The extracted main steam, extracted steam and high-temperature flue gas flow are cooperatively controlled to enable the steam turbine set to operate at 70% of load.
The unit deaerator outlet pipeline, the heat supply main pipe and the condenser outlet pipeline are respectively connected with inlets of high-temperature heat storage modules, middle-temperature heat storage modules and low-temperature heat storage modules of the heat storage system, and outlets of the heat storage system are respectively connected with the high-pressure heater outlet pipeline, the heat supply main pipe and the deaerator inlet pipeline. When the unit participates in power grid peak shaving and needs to reduce output to 35% load, as shown in fig. 4, the boiler is set to operate at 30% load, the steam turbine operates at 35% load, part of high-pressure feed water is extracted from an outlet pipeline of the deaerator and enters a high-temperature heat storage module of the heat storage system, exchanges heat with a molten salt medium, and the heat exchanged water is mixed with the feed water at the outlet of the first-stage high-pressure heater and enters the boiler; meanwhile, part of heat supply steam is extracted from the heat supply main pipe and enters a medium-temperature heat storage module of the heat storage system to exchange heat with concrete, and the heat exchange steam returns to the heat supply main pipe to supply heat to the outside; meanwhile, part of low-pressure feed water is extracted from an outlet pipeline of the condenser and enters a low-temperature module of the heat storage system to exchange heat with hot water, and then enters a deaerator after heat exchange. The flow of the extracted high-pressure feed water, the extracted heating steam and the low-pressure feed water is cooperatively controlled to enable the steam turbine set to operate at 35% of load, and simultaneously, the requirement of external heating is met.
Example 2
The heat storage system is configured for the unit and comprises high-temperature, medium-temperature and low-temperature heat storage modules, wherein the high-temperature heat storage module stores heat in molten salt, the medium-temperature heat storage module stores heat in concrete, and the low-temperature heat storage module stores heat in hot water. The reheating steam pipeline, the steam extraction pipeline and the air cooling exhaust steam pipeline of the steam turbine are respectively connected with inlets of high-temperature heat storage modules, middle-temperature heat storage modules and low-temperature heat storage modules of the heat storage system, and outlets of the heat storage system are respectively connected with an inlet pipeline of a deaerator, an inlet pipeline of a low-pressure heater and an inlet of a condenser.
As shown in fig. 5, when the unit operates at 60% load, the boiler is set to operate at 75% load, and part of reheated steam is extracted from the reheated steam pipeline before entering the intermediate pressure cylinder of the steam turbine and enters the high-temperature heat storage module of the heat storage system to exchange heat with the molten salt medium, and then the reheated steam and the reheated steam are returned to the deaerator after heat exchange; meanwhile, part of extracted steam is extracted from a fourth-stage steam extraction pipeline of the unit and enters a medium-temperature heat storage module of the heat storage system to exchange heat with concrete, and the extracted steam returns to the low-pressure heater after the heat exchange; meanwhile, partial exhaust steam is extracted from the air-cooling exhaust steam pipeline and enters a low-temperature heat storage module of the heat storage system to exchange heat with hot water, and the exhaust steam returns to the condenser after the heat exchange. And the flow of the extracted reheat steam, the extracted steam and the air-cooled exhaust steam are cooperatively controlled to enable the steam turbine set to operate at 60% load.
The heat supply network water return pipeline and the industrial steam supply pipeline are respectively connected with inlets of the high-temperature heat storage module, the middle-temperature heat storage module and the low-temperature heat storage module of the heat storage system, and outlets of the heat storage system are respectively connected with the heat supply network heat supply pipeline and the industrial steam supply pipeline. When the unit participates in peak shaving of the power grid and needs to reduce the output to 30% load, as shown in fig. 6, a boiler and a steam turbine are set to operate at 30% load, part of steam is extracted from an industrial steam supply pipeline and respectively enters a high-temperature heat storage module and a medium-temperature heat storage module to exchange heat with molten salt or concrete, and parameter requirements of different industrial steam supplies are met after heat exchange; meanwhile, partial hot water is extracted from the heat supply network water return pipeline and enters the medium-temperature and low-temperature heat storage module to exchange heat with concrete or hot water, and the hot water returns to the heat supply network heat supply pipeline to supply heat to the outside after heat exchange, so that the requirement of external heat supply is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention.
Claims (10)
1. A heat supply and power generation decoupling method for improving peak regulation capacity of a heat supply unit is characterized by comprising the following steps:
when the unit supplies heat to the outside under a higher load, high-parameter media in part of the unit are led out to the heat storage system, and part of heat is stored on the premise of meeting the heat supply requirement;
when the unit participates in power grid peak shaving and needs to reduce output for external heat supply, the steam quantity entering the steam turbine is reduced, the output of the steam turbine is reduced, the load reduction and peak shaving operation of the unit is achieved, meanwhile, the load of the boiler is improved, partial steam extracted from a main steam and a reheating system of the unit directly supplies heat to the outside after exchanging heat with a heat storage system, or partial steam or hot water is extracted from a heat supply system of the unit to the heat storage system, and the stored heat is absorbed to supply heat to the outside, so that the heat supply requirement is met.
2. The heat supply and power generation decoupling method for improving the peak shaving capacity of the heat supply unit according to claim 1, is characterized by comprising the following steps:
when the unit supplies heat to the outside at a higher load:
the boiler operates between the lowest stable combustion load and the rated load; extracting a high-parameter medium from a heat supply unit and entering a heat storage system; storing the extracted high-parameter medium heat, wherein the medium after heat exchange becomes a low-parameter medium with lower quality; the medium with lower quality directly supplies heat to the outside or is sent to a thermal interface of a regenerative system of the unit;
when the unit participates in power grid peak shaving and needs to reduce output to supply heat externally:
keeping the load of the boiler not lower than the lowest stable combustion load; part of steam is extracted from the main steam and reheating system of the unit to exchange heat with the heat storage system, and the heat exchanged steam directly supplies heat to the outside; extracting part of low-parameter steam or hot water from a heat supply main pipe or a heat supply network initial station of a unit; the extracted low-parameter steam or hot water enters a heat storage system to absorb the stored heat, and the steam or hot water with increased heat becomes steam with higher parameter to supply heat to the outside.
3. The heat supply and power generation decoupling method for improving the peak shaving capacity of the heat supply unit according to claim 2, wherein the heat storage system is divided into three heat storage sections, namely a high heat storage section, a medium heat storage section and a low heat storage section according to temperature, and the heat of the high parameter medium is stored by sequentially passing the high parameter medium through the high heat storage section, the medium heat storage section and the low heat storage section in the heat storage system and continuously exchanging heat with the medium in the different heat storage sections to transfer part of heat in the high parameter to the heat storage medium and store the part of heat in the high parameter; the low-parameter steam or hot water absorbs heat by passing through at least one heat storage interval and exchanging heat with a medium in the heat storage interval.
4. The heat supply and power generation decoupling method for improving the peak shaving capacity of the heat supply unit according to claim 2, wherein the high parameter medium is at least one of main steam, reheat steam, steam extraction of a steam turbine, high temperature flue gas or air cooling exhaust steam.
5. The heat supply and power generation decoupling method of improving peak shaving capacity of a heat supply unit of claim 2, wherein the unit regenerative system thermal interface comprises a high pressure heater steam inlet, a high pressure heater feedwater outlet, a deaerator steam inlet, a deaerator feedwater outlet, a low pressure heater steam inlet, a low pressure heater condensate inlet, and/or a low pressure heater condensate outlet.
6. The heat supply and power generation decoupling method for improving the peak shaving capacity of the heat supply unit according to claim 1 or 2, wherein the unit is a subcritical, supercritical or ultra supercritical thermal power unit with a heat supply system, and the unit adopts a coal-electricity unit with any existing grade capacity.
7. The heat supply and power generation decoupling method for improving the peak shaving capacity of the heat supply unit according to claim 2, wherein the external heat supply comprises heating steam supply and industrial steam supply.
8. A heat supply and power generation decoupling system for improving the peak load regulation capacity of a heat supply unit in claims 1-7 is characterized by comprising any one of the existing heat supply generator unit and the existing heat storage system; the heat storage system consists of high-temperature, medium-temperature and low-temperature heat storage intervals which are connected in series; the inlet of the heat storage system is communicated with a high-parameter medium pipeline, and the outlet of the heat storage system is communicated with a thermal interface of a unit heat regenerative system; the inlet of the heat storage system is also communicated with a low-parameter steam or hot water pipeline of the unit heat regeneration system, a heat supply main pipe or a heat supply network initial station, and the outlet of the heat storage system is communicated with the heat supply pipeline.
9. A heat supply and power generation decoupling system for improving peak shaving capacity of a heat supply unit according to claim 8, wherein the heat storage medium in the high-temperature heat storage interval is molten salt, the heat storage medium in the medium-temperature heat storage interval is concrete, and the heat storage medium in the low-temperature heat storage interval is hot water.
10. A heat supply and power generation decoupling system that improves peak shaver capacity of a heat supply unit of claim 8, wherein the unit regenerative system thermal interface comprises at least one of a high pressure heater steam inlet, a high pressure heater feedwater outlet, a deaerator steam inlet, a deaerator feedwater outlet, a low pressure heater steam inlet, a low pressure heater condensate inlet, and a low pressure heater condensate outlet.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983445A (en) * | 2021-10-28 | 2022-01-28 | 西安西热节能技术有限公司 | Thermal power plant energy storage and heat supply system and method for energy gradient utilization |
| CN115102203A (en) * | 2022-08-29 | 2022-09-23 | 中国能源建设集团山西省电力勘测设计院有限公司 | Energy storage and discharge method of cogeneration unit under deep peak shaving operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090000848A1 (en) * | 2007-06-28 | 2009-01-01 | Michael Jeffrey Brookman | Air start steam engine |
| CN104279012A (en) * | 2013-07-04 | 2015-01-14 | 中国科学院过程工程研究所 | Nuclear power peak shaving system based on cryogenic energy storage |
| CN106194296A (en) * | 2016-09-05 | 2016-12-07 | 华能国际电力股份有限公司 | A kind of thermoelectricity decoupling heating system from station boiler steam pumping |
| CN109139151A (en) * | 2018-08-30 | 2019-01-04 | 华能国际电力股份有限公司丹东电厂 | A kind of thermoelectricity decoupled system with heat accumulation |
| CN209877401U (en) * | 2019-05-07 | 2019-12-31 | 内蒙古电力勘测设计院有限责任公司 | Groove tower coupling solar energy photo-thermal power station stores up heat transfer system |
| CN111928228A (en) * | 2020-09-03 | 2020-11-13 | 西安热工研究院有限公司 | Power station boiler high-temperature flue gas coupling reheat steam heat storage deep peak regulation system and method |
-
2021
- 2021-04-30 CN CN202110485992.1A patent/CN113153465B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090000848A1 (en) * | 2007-06-28 | 2009-01-01 | Michael Jeffrey Brookman | Air start steam engine |
| CN104279012A (en) * | 2013-07-04 | 2015-01-14 | 中国科学院过程工程研究所 | Nuclear power peak shaving system based on cryogenic energy storage |
| CN106194296A (en) * | 2016-09-05 | 2016-12-07 | 华能国际电力股份有限公司 | A kind of thermoelectricity decoupling heating system from station boiler steam pumping |
| CN109139151A (en) * | 2018-08-30 | 2019-01-04 | 华能国际电力股份有限公司丹东电厂 | A kind of thermoelectricity decoupled system with heat accumulation |
| CN209877401U (en) * | 2019-05-07 | 2019-12-31 | 内蒙古电力勘测设计院有限责任公司 | Groove tower coupling solar energy photo-thermal power station stores up heat transfer system |
| CN111928228A (en) * | 2020-09-03 | 2020-11-13 | 西安热工研究院有限公司 | Power station boiler high-temperature flue gas coupling reheat steam heat storage deep peak regulation system and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983445A (en) * | 2021-10-28 | 2022-01-28 | 西安西热节能技术有限公司 | Thermal power plant energy storage and heat supply system and method for energy gradient utilization |
| CN115102203A (en) * | 2022-08-29 | 2022-09-23 | 中国能源建设集团山西省电力勘测设计院有限公司 | Energy storage and discharge method of cogeneration unit under deep peak shaving operation |
| CN115102203B (en) * | 2022-08-29 | 2023-01-17 | 中国能源建设集团山西省电力勘测设计院有限公司 | Energy storage and discharge method of cogeneration unit under deep peak regulation operation |
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