CN109855079B - Combined cycle power peak regulation system based on steam extraction coupling heat accumulation and operation method thereof - Google Patents
Combined cycle power peak regulation system based on steam extraction coupling heat accumulation and operation method thereof Download PDFInfo
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- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 238000009825 accumulation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 45
- 230000001502 supplementing effect Effects 0.000 claims abstract description 17
- 239000002918 waste heat Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 230000009467 reduction Effects 0.000 claims description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 15
- 239000003546 flue gas Substances 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 238000005338 heat storage Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Abstract
The invention relates to a combined cycle power peak shaving system based on steam extraction coupling heat accumulation and an operation method thereof, comprising a gas turbine unit and a steam turbine unit; the gas turbine unit comprises a gas turbine compressor, a gas turbine combustion chamber, a gas turbine level and a first generator, and the steam turbine unit comprises a waste heat boiler, a steam turbine high-pressure cylinder, a steam turbine low-pressure cylinder, a second generator, a condenser, a condensate pump, a shaft seal heater, a deaerator, a water supplementing pump, a pressure matcher, a first temperature and pressure reducing device, a second temperature and pressure reducing device, a steam heat accumulator and a third temperature and pressure reducing device; after the invention is applied, the working capacity loss in the heat supply process can be effectively reduced while the external heat supply capacity of the combined cycle unit is deeply excavated; in addition, the method can meet the current severe power peak regulation and frequency modulation policy requirements, realizes deep peak regulation and frequency modulation of the thermal power generating unit, and has higher practical application value.
Description
Technical Field
The invention belongs to the technical field of improving flexibility of thermoelectric units, and particularly relates to a combined cycle power peak shaving system based on steam extraction coupling heat accumulation and an operation method thereof.
Background
At present, the policy in China gradually pays attention to popularization of new energy sources, reduces the proportion of the thermal power generating unit, and makes the development of the thermal power generating unit face serious tests. Currently, in order to improve the comprehensive energy utilization efficiency of the thermal power generating unit and strive for more power generation utilization hours, the heat supply capacity of the thermal power generating unit is deeply excavated, and the thermal power generating unit is more and more valued in various communities. The gas heat and power cogeneration is an energy utilization mode for simultaneously producing heat energy and electric energy, and uses high-grade heat energy for power generation and low-grade heat energy for heat supply, thereby improving the utilization efficiency of energy, reducing environmental pollution and having great application value in the aspects of energy conservation, consumption reduction and pollution emission reduction.
At present, the gas-heat-electricity cogeneration central heating system mainly has the problems that the heat-electricity ratio is low, the heat-electricity ratio generated by the conventional gas-heat-electricity cogeneration combination is limited to a certain extent, the more advanced the unit with high conversion efficiency is, the smaller the heat-electricity ratio is, taking a 10 ten thousand kW unit as an example, and the heat-electricity ratio is about 0.7. Especially, under the severe situation of current thermal power depth peak regulation, the unit is often operated under a low-load working condition, and the external heat supply capacity of the unit is lower at the moment, so that the heat supply safety is seriously influenced. However, in the prior art, for example, a combined cycle cogeneration system (patent No. 201310401252.0) is to utilize high-emission steam extraction to reduce temperature and pressure and then supply heat to the outside, and the technical defect is that: (1) The cascade utilization of energy is not considered, and the loss of the working capacity of direct temperature and pressure reduction is larger; (2) The thermal power depth peak regulation needs are not considered, so that the unit needs to operate at high load to meet the external heat supply, and the peak regulation capability of the unit is poor. In the prior art, for example, a patent 'gas-steam combined cycle heat supply system (patent number 201710534092.5)', low-pressure steam supplement of a middle-pressure exhaust steam or waste heat boiler is utilized to provide steam required for heat supply and steam required for refrigeration for the outside, and redundant low-pressure steam supplement can be conveyed into an on-machine steam pipe.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a combined cycle power peak regulation system based on steam extraction coupling heat accumulation and an operation method thereof, wherein the combined cycle power peak regulation system has reasonable design and reliable performance.
The invention solves the problems by adopting the following technical scheme: the utility model provides a combined cycle electric power peak shaving system based on extraction coupling heat accumulation which characterized in that includes: a gas turbine unit and a steam turbine unit;
the gas turbine unit comprises a gas turbine compressor, a gas turbine combustion chamber, a gas turbine and a first generator, wherein an exhaust port of the gas turbine compressor is connected with an air inlet of the gas turbine combustion chamber, an exhaust port of the gas turbine combustion chamber is connected with an air inlet of the gas turbine, an exhaust port of the gas turbine is connected with a flue gas inlet of the waste heat boiler through a flue gas discharge pipe, the gas turbine drives the first generator to generate power, and the gas turbine is coaxially connected with the gas turbine compressor;
the steam turbine unit comprises a waste heat boiler, a steam turbine high-pressure cylinder, a steam turbine low-pressure cylinder, a second generator, a condenser, a condensate pump, a shaft seal heater, a deaerator, a water supplementing pump, a pressure matcher, a first temperature and pressure reducing device, a second temperature and pressure reducing device, a steam heat accumulator and a third temperature and pressure reducing device, wherein the steam turbine high-pressure cylinder and the steam turbine low-pressure cylinder are coaxially connected and drive the second generator to generate electricity, the waste heat boiler comprises a flue gas preheater, a low-pressure steam drum, a low-pressure superheater, a high-pressure steam drum and a high-pressure superheater, a water outlet of the flue gas preheater is simultaneously connected with a water inlet of the low-pressure steam drum and a water inlet of the high-pressure steam drum, a steam outlet of the low-pressure steam drum is connected with a steam inlet of the high-pressure superheater, the steam inlet of the high-pressure cylinder of the steam turbine is connected with the steam outlet of the high-pressure superheater through a high-pressure steam pipe, a second valve is arranged at the steam inlet of the high-pressure cylinder of the steam turbine, the steam outlet of the high-pressure cylinder of the steam turbine is connected with the steam inlet of the low-pressure cylinder of the steam turbine through a communicating pipe, a hydraulic butterfly valve is arranged at the steam inlet of the low-pressure cylinder of the steam turbine, the communicating pipe is connected with one end of the low-pressure steam pipe, a fourth valve is arranged at one end of the low-pressure steam pipe, the steam outlet of the low-pressure superheater is connected with the other end of the low-pressure steam pipe, a fifth valve is arranged at the other end of the low-pressure steam pipe, the steam outlet of the low-pressure cylinder of the steam turbine is connected with a condenser, the water inlet end of a water supply pipe of the boiler is connected with a water inlet of a flue gas preheater, a condensate pump, a shaft seal heater and a deaerator are sequentially arranged on the water supply pipe of the boiler along the water flow direction, the deaerator is connected with a low-pressure steam pipe through a deaeration steam extraction pipe, sixteen valves are arranged on the deaeration steam extraction pipe, the steam inlet end of a high-pressure steam bypass is connected with the high-pressure steam pipe, a third valve is arranged on the high-pressure steam bypass, the steam inlet end of a first high-pressure steam branch pipe is connected with the steam outlet end of the high-pressure steam bypass, a sixth valve is arranged on the first high-pressure steam branch pipe, the high-pressure steam inlet of a pressure matcher is connected with the steam outlet end of the first high-pressure steam branch pipe, the low-pressure steam inlet of the pressure matcher is connected with the low-pressure steam pipe through a low-pressure steam bypass, the medium-pressure steam outlet of the pressure matcher is connected with an industrial steam supply pipe, seven valves and eight valves are respectively arranged at the medium-pressure steam outlets of the low-pressure steam bypass and the pressure matcher, the steam inlet of the second high-pressure steam branch pipe is connected with the steam outlet of the high-pressure steam bypass, the steam inlet of the first temperature and pressure reduction device is connected with the steam outlet of the second high-pressure steam branch pipe, the steam outlet of the first temperature and pressure reduction device is connected with an industrial steam supply pipe, a valve nine and a valve ten are respectively arranged at the steam outlets of the second high-pressure steam branch pipe and the first temperature and pressure reduction device, the steam inlet of the third high-pressure steam branch pipe is connected with the steam outlet of the high-pressure steam bypass, the steam outlet of the third high-pressure steam branch pipe is connected with the steam inlet of the steam heat accumulator, and an valve eleven, a second temperature and pressure reduction device and a valve twelve are sequentially arranged on the third high-pressure steam branch pipe along the steam flow direction, the steam outlet of the steam heat accumulator is connected with the industrial steam supply pipe, and a valve thirteen is arranged at the steam outlet of the steam heat accumulator.
Further, the boiler water supplementing pipe is connected with the water inlet of the condensate pump, and the water supplementing pump and the valve I are sequentially arranged on the boiler water supplementing pipe along the water flowing direction.
Furthermore, the steam outlet of the steam heat accumulator is also connected with a low-pressure steam pipe through a first low-pressure steam branch pipe, and a fourteen-valve, a third temperature and pressure reducing device and a fifteen-valve are sequentially arranged on the first low-pressure steam branch pipe along the steam flow direction.
Furthermore, the industrial steam supply pipe is connected with the pressure matcher, the first temperature and pressure reduction device and the steam heat accumulator at the same time, and seventeen valves are arranged on the industrial steam supply pipe.
Further, the high-pressure steam bypass is connected with the first high-pressure steam branch pipe, the second high-pressure steam branch pipe and the third high-pressure steam branch pipe at the same time.
The operation method of the combined cycle power peak shaving system based on the steam extraction coupling heat accumulation is specifically as follows:
when the unit is in a pure condensation working condition and no power peak regulation requirement exists:
opening a second valve, a hydraulic butterfly valve, a fourth valve, a fifth valve and a sixteen valve, wherein the combined cycle unit does not supply heat to the outside, and the deoxidized steam of the deoxidizer is from the low-pressure steam supplementing of the low-pressure superheater;
when the unit is in a pure condensation working condition and has power peak regulation requirements:
A. when the unit needs to reduce the electric load to the external output, mainly carry out steam heat accumulation through the steam heat accumulator, reduce the steam flow who gets into the steam turbine and do work, this moment:
opening a valve III and a valve eleven, and directly enabling high-pressure steam from the high-pressure superheater to enter a second temperature and pressure reduction device, and conveying the high-pressure steam to a steam heat accumulator for heat accumulation by opening a valve twelve after temperature and pressure reduction, so that the steam flow entering a steam turbine for work is reduced;
B. when the unit needs to increase the external output electric load, the heat release of steam is mainly carried out through the steam heat accumulator, the steam flow entering the steam turbine for doing work is increased, and at the moment:
closing a third valve, an eleventh valve and a twelfth valve, simultaneously opening a thirteenth valve, a fourteenth valve and a fifteenth valve, outputting steam from the steam heat accumulator to enter a third temperature and pressure reducing device, and conveying the steam to a low-pressure cylinder of the steam turbine after temperature and pressure reduction to increase the steam flow entering the steam turbine for acting;
when the unit is in a heating working condition and no power peak regulation is required:
the seventeen valves are opened, steam is supplied to the external heat users through the industrial steam supply pipes, and the specific operation method for supplying steam to the external heat users at the moment is as follows:
opening a valve III, a valve six, a valve seven and a valve eight, taking high-pressure steam of a high-pressure superheater as high-pressure steam inlet of a pressure matcher, taking low-pressure steam supplementing of a low-pressure superheater or steam exhaust of a high-pressure cylinder of a steam turbine as low-pressure steam inlet of the pressure matcher, and outputting medium-pressure steam by the pressure matcher for supplying steam to external heat users;
or opening a third valve, a ninth valve and a tenth valve, enabling high-pressure steam of the high-pressure superheater to enter the first temperature and pressure reduction device, and outputting medium-pressure steam after temperature and pressure reduction for supplying steam to external heat users;
when the unit is in a heating working condition and has power peak regulation requirements:
A. when the unit needs to reduce the load of the external output electricity, the steam heat storage is mainly carried out through the steam heat accumulator, the steam flow entering the steam turbine for doing work is reduced, and the specific operation is as follows:
opening an eleventh valve and a twelfth valve, enabling high-pressure steam of the high-pressure superheater to enter a second temperature and pressure reduction device, and conveying the high-pressure steam to a steam heat accumulator for heat accumulation after temperature and pressure reduction, so that the steam flow entering a steam turbine for work is reduced;
B. when the unit needs to increase the external output electric load, the steam heat accumulator is utilized to replace the pressure matcher and the first temperature and pressure reducing device, and the steam heat is released through the steam heat accumulator to supply steam for external heat users, so that the steam flow entering the steam turbine to do work is increased, and the specific operation is as follows:
closing the valve No. six, the valve No. seven and the valve No. eight, and enabling the pressure matcher to work no longer;
closing the valve No. nine and the valve No. ten, wherein the first temperature and pressure reducing device does not work any more;
at the moment, the valve III, the valve eleven and the valve twelve are closed, the valve thirteen is opened simultaneously, the steam accumulator outputs steam, and steam is supplied to external heat users through the industrial steam supply pipe by opening the valve seventeen.
The operation method of the combined cycle power peak shaving system based on the steam extraction coupling heat accumulation comprises the following steps:
when the unit is in a heat supply working condition and no power peak regulation requirement exists, the pressure matcher is preferentially selected to supply steam for external heat users, and the first temperature and pressure reduction device is selected to supply steam for the external heat users;
when the unit is in a heat supply working condition and has power peak regulation requirements, the steam heat accumulator is preferentially selected to supply steam to the external heat user, the pressure matcher is selected to supply steam to the external heat user, and the first temperature and pressure reduction device is selected to supply steam to the external heat user.
Compared with the prior art, the invention has the following advantages and effects: the integrated design of different steam extraction modes is carried out based on the energy cascade utilization principle and in combination with the steam residual energy utilization mode, so that the operation capacity of the thermal electrolytic coupler of the 6FA type combined cycle unit is effectively improved; meanwhile, the steam heat accumulator is utilized, so that the cooperative matching of the power peak regulation and heat supply of the combined cycle unit is realized, the peak regulation and frequency modulation capacity of the combined cycle unit under the pure condensation working condition is improved, and the power peak regulation of the combined cycle unit under the full working condition is realized. After the invention is applied, the working capacity loss in the heat supply process is effectively reduced while the heat supply capacity of the combined cycle unit is deeply excavated; in addition, the current severe power peak regulation and frequency modulation policy requirements are met, deep peak regulation and frequency modulation of the thermal power generating unit are realized, and the thermal power generating unit has higher practical application value.
Drawings
Fig. 1 is a schematic structural diagram of a combined cycle power peak shaving system based on steam extraction coupling heat accumulation in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
Referring to fig. 1, the combined cycle power peak shaving system based on steam extraction coupling heat storage in this embodiment includes: a gas turbine unit and a steam turbine unit;
the gas turbine unit comprises a gas turbine compressor 1, a gas turbine combustion chamber 2, a gas turbine 3 and a first generator 4, wherein an exhaust port of the gas turbine compressor 1 is connected with an air inlet of the gas turbine combustion chamber 2, an exhaust port of the gas turbine combustion chamber 2 is connected with an air inlet of the gas turbine 3, an exhaust port of the gas turbine 3 is connected with a flue gas inlet of a waste heat boiler 5 through a flue gas discharge pipe 23, the gas turbine 3 drives the first generator 4 to generate power, and the gas turbine 3 is coaxially connected with the gas turbine compressor 1;
the steam turbine unit comprises a waste heat boiler 5, a steam turbine high pressure cylinder 6, a steam turbine low pressure cylinder 7, a second generator 8, a condenser 9, a condensate pump 10, a shaft seal heater 11, a deaerator 12, a water supplementing pump 13, a pressure matcher 14, a first temperature and pressure reducing device 15, a second temperature and pressure reducing device 16, a steam heat accumulator 17 and a third temperature and pressure reducing device 18, the steam turbine high pressure cylinder 6 and the steam turbine low pressure cylinder 7 are coaxially connected and drive the second generator 8 to generate electricity, the waste heat boiler 5 comprises a flue gas preheater 501, a low pressure steam drum 502, a low pressure superheater 503, a high pressure steam drum 504 and a high pressure superheater 505, the water outlet of the flue gas preheater 501 is simultaneously connected with the water inlet of the low pressure steam drum 502 and the water inlet of the high pressure steam drum 504, the steam outlet of the low pressure steam drum 502 is connected with the steam inlet of the low pressure superheater 503, the steam outlet of the high pressure steam drum 504 is connected with the steam inlet of the high pressure superheater 505, the steam inlet of the high-pressure cylinder 6 of the steam turbine is connected with the steam outlet of the high-pressure superheater 505 through the high-pressure steam pipe 24, a valve No. two 42 is arranged at the steam inlet of the high-pressure cylinder 6 of the steam turbine, the steam outlet of the high-pressure cylinder 6 of the steam turbine is connected with the steam inlet of the low-pressure cylinder 7 of the steam turbine through a communicating pipe 26, a hydraulic butterfly valve 44 is arranged at the steam inlet of the low-pressure cylinder 7 of the steam turbine, the communicating pipe 26 is connected with one end of the low-pressure steam pipe 27, a valve No. four 45 is arranged at one end of the low-pressure steam pipe 27, the steam outlet of the low-pressure superheater 503 is connected with the other end of the low-pressure steam pipe 27, a valve No. five 46 is arranged at the other end of the low-pressure steam pipe 27, the steam outlet of the low-pressure cylinder 7 of the steam turbine is connected with the condenser 9, the water inlet end of the water feeding pipe 21 of the boiler is connected with the condenser 9, the water outlet end of the water feeding pipe 21 of the boiler is connected with the water inlet of the flue gas preheater 501, and a condensate pump 10, a shaft seal heater 11 and a deaerator 12 are sequentially arranged on a boiler water supply pipe 21 along the water flowing direction, the deaerator 12 is connected with a low-pressure steam pipe 27 through a deaeration steam extraction pipe 33, a sixteen-number valve 57 is arranged on the deaeration steam extraction pipe 33, the steam inlet end of a high-pressure steam bypass 25 is connected with a high-pressure steam pipe 24, a three-number valve 43 is arranged on the high-pressure steam bypass 25, the steam inlet end of a first high-pressure steam branch pipe 28 is connected with the steam outlet end of the high-pressure steam bypass 25, a six-number valve 47 is arranged on the first high-pressure steam branch pipe 28, the high-pressure steam inlet of a pressure matcher 14 is connected with the steam outlet end of the first high-pressure steam branch pipe 28, the low-pressure steam inlet of the pressure matcher 14 is connected with the low-pressure steam pipe 27 through a low-pressure steam bypass 31, the medium-pressure steam outlet of the pressure matcher 14 is connected with an industrial steam supply pipe 34, and a valve 48 and a valve 49 are respectively arranged at the medium pressure steam outlet of the low pressure steam bypass 31 and the pressure matcher 14, the steam inlet of the second high pressure steam branch pipe 29 is connected with the steam outlet of the high pressure steam bypass 25, the steam inlet of the first temperature and pressure reducing device 15 is connected with the steam outlet of the second high pressure steam branch pipe 29, the steam outlet of the first temperature and pressure reducing device 15 is connected with the industrial steam supply pipe 34, a valve 50 and a valve 51 are respectively arranged at the steam outlets of the second high pressure steam branch pipe 29 and the first temperature and pressure reducing device 15, the steam inlet of the third high pressure steam branch pipe 30 is connected with the steam outlet of the high pressure steam bypass 25, the steam outlet of the third high pressure steam branch pipe 30 is connected with the steam inlet of the steam heat accumulator 17, an eleven valve 52, a second temperature and pressure reducing device 16 and a twelve valve 53 are sequentially arranged on the third high pressure steam branch pipe 30 along the steam flow direction, the steam outlet of the steam heat accumulator 17 is connected with an industrial steam supply pipe 34, and a thirteen-valve 54 is arranged at the steam outlet of the steam heat accumulator 17.
The boiler water supply pipe 22 is connected with the water inlet of the condensate pump 10, and the water supply pump 13 and the valve 41 are sequentially installed on the boiler water supply pipe 22 along the water flowing direction.
The steam outlet of the steam heat accumulator 17 is also connected to the low-pressure steam pipe 27 through a first low-pressure steam branch pipe 32, and a fourteen-valve 55, a third temperature and pressure reduction device 18, and a fifteen-valve 56 are installed in this order along the steam flow direction on the first low-pressure steam branch pipe 32.
The industrial steam supply pipe 34 is connected with the medium pressure steam outlet of the pressure matcher 14, the steam outlet of the first temperature and pressure reducing device 15 and the steam outlet of the steam heat accumulator 17, and a seventeen valve 58 is arranged on the industrial steam supply pipe 34.
The steam outlet end of the high-pressure steam bypass 25 is connected with the steam inlet end of the first high-pressure steam branch pipe 28, the steam inlet end of the second high-pressure steam branch pipe 29 and the steam inlet end of the third high-pressure steam branch pipe 30 at the same time.
In this embodiment, the operation method of the combined cycle power peak shaving system based on steam extraction coupling heat storage is specifically as follows:
when the unit is in a pure condensation working condition and no power peak regulation requirement exists:
opening the valve No. two 42, the hydraulic butterfly valve 44, the valve No. four 45, the valve No. five 46 and the valve No. sixteen 57, wherein the combined cycle unit does not supply heat to the outside, and the deoxidized steam of the deoxidizer 12 is from the low-pressure steam supplementing of the low-pressure superheater 503;
when the unit is in a pure condensation working condition and has power peak regulation requirements:
A. when the unit needs to reduce the electric load to the external output, mainly carry out steam heat accumulation through the steam heat accumulator 17, reduce the steam flow who gets into the steam turbine and do work, this moment:
the valve No. 43 and the valve No. eleven 52 are opened, high-pressure steam from the high-pressure superheater 505 directly enters the second temperature and pressure reduction device 16, and after temperature and pressure reduction, the high-pressure steam is conveyed to the steam heat accumulator 17 for heat accumulation by opening the valve No. 53, so that the steam flow entering the steam turbine for work is reduced;
B. when the unit needs to increase the external output electric load, the heat release of steam is mainly carried out through the steam heat accumulator 17, the steam flow entering the steam turbine for doing work is increased, and at the moment:
closing the valve 43, the valve 52 and the valve 53, and simultaneously opening the valve 54, the valve 55 and the valve 56, wherein the steam accumulator 17 outputs steam to enter the third temperature and pressure reduction device 18, and the steam is conveyed to the low-pressure cylinder 7 of the steam turbine after temperature and pressure reduction to increase the steam flow entering the steam turbine for acting;
when the unit is in a heating working condition and no power peak regulation is required:
the seventeen valve 58 is opened to supply steam to the external heat user through the industrial steam supply pipe 34, and the specific operation method for supplying steam to the external heat user at this time is as follows:
opening a valve No. 43, a valve No. 47, a valve No. 48 and a valve No. 49, taking high-pressure steam of a high-pressure superheater 505 as high-pressure steam inlet of a pressure matcher 14, taking low-pressure steam supplementing of a low-pressure superheater 503 or steam exhaust of a high-pressure cylinder 6 of a steam turbine as low-pressure steam inlet of the pressure matcher 14, and outputting medium-pressure steam by the pressure matcher 14 for supplying steam to external heat users;
or, opening the valve No. 43, the valve No. 50 and the valve No. 51, and enabling the high-pressure steam of the high-pressure superheater 505 to enter the first temperature and pressure reduction device 15, and outputting medium-pressure steam after temperature and pressure reduction for supplying steam to external heat users;
when the unit is in a heating working condition and has power peak regulation requirements:
A. when the unit needs to reduce the load of the external output electricity, the steam heat storage is mainly carried out through the steam heat accumulator 17, the steam flow entering the steam turbine for doing work is reduced, and the specific operation is as follows:
opening an eleventh valve 52 and a twelfth valve 53, enabling high-pressure steam of the high-pressure superheater 505 to enter the second temperature and pressure reduction device 16, and conveying the high-pressure steam to the steam heat accumulator 17 for heat accumulation after temperature and pressure reduction, so that the steam flow entering the steam turbine for work is reduced;
B. when the unit needs to increase the external output electric load, the steam heat accumulator 17 is utilized to replace the pressure matcher 14 and the first temperature and pressure reducing device 15, and the steam heat is released through the steam heat accumulator 17 to supply steam for external heat users, so that the steam flow entering the steam turbine to do work is increased, and the specific operation is as follows:
closing valve number six 47, valve number seven 48 and valve number eight 49, the pressure matcher 14 no longer works;
closing valve number nine 50 and valve number ten 51, the first temperature and pressure reducing device 15 no longer works;
at this time, the valve No. 43, the valve No. eleven 52 and the valve No. twelve 53 are also closed, and the valve No. thirteen 54 is opened simultaneously, and the steam accumulator 17 outputs steam, and the seventeen valve 58 is opened to supply steam to the external heat user through the industrial steam supply pipe 34.
In the specific operation method of the embodiment, the following steps are adopted:
when the unit is in a heat supply working condition and no power peak regulation requirement exists, the pressure matcher 14 is preferably selected to supply steam for external heat users, and the first temperature and pressure reduction device 15 is then selected to supply steam for external heat users;
when the unit is in a heat supply working condition and has power peak regulation requirements, the steam heat accumulator 17 is preferably selected to supply steam to the external heat user, the pressure matcher 14 is selected to supply steam to the external heat user, and the first temperature and pressure reduction device 15 is selected to supply steam to the external heat user.
In the specific operation method of this embodiment, all valves have the function of adjusting the fluid flow of the pipeline; other valves have a shut-off function in addition to the hydraulic butterfly valve 44.
In the specific operation method of the embodiment, the opening adjustment of all valves is completed through the remote operation of the DCS control system of the combined cycle unit; in addition, the water supplementing flow of the boiler water supply system of the combined cycle unit is jointly determined by the steam flow for external heat supply and the steam flow for heat accumulation and release of the steam heat accumulator 17; the heat storage and release capacity and time of the steam heat accumulator 17 are determined by considering comprehensive factors such as the power deep peak regulation and frequency modulation requirement, the unit external heat supply capacity, the unit extraction integrated system regulation capacity and the like.
Although the present invention is described with reference to the above embodiments, it should be understood that the invention is not limited to the embodiments described above, but is capable of modification and variation without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a combined cycle electric power peak shaving system based on extraction coupling heat accumulation which characterized in that includes: a gas turbine unit and a steam turbine unit;
the gas turbine unit comprises a gas turbine compressor (1), a gas turbine combustion chamber (2), a gas turbine (3) and a first generator (4), wherein an exhaust port of the gas turbine compressor (1) is connected with an air inlet of the gas turbine combustion chamber (2), an exhaust port of the gas turbine combustion chamber (2) is connected with an air inlet of the gas turbine (3), an exhaust port of the gas turbine (3) is connected with a flue gas inlet of a waste heat boiler (5) through a flue gas discharge pipe (23), the gas turbine (3) drives the first generator (4) to generate electricity, and the gas turbine (3) is coaxially connected with the gas turbine compressor (1);
the steam turbine unit comprises a waste heat boiler (5), a steam turbine high-pressure cylinder (6), a steam turbine low-pressure cylinder (7), a second generator (8), a condenser (9), a condensate pump (10), a shaft seal heater (11), a deaerator (12), a water supplementing pump (13), a pressure matcher (14), a first temperature and pressure reducing device (15), a second temperature and pressure reducing device (16), a steam heat accumulator (17) and a third temperature and pressure reducing device (18), the steam turbine high-pressure cylinder (6) and the steam turbine low-pressure cylinder (7) are coaxially connected, the second generator (8) is driven to generate electricity, the waste heat boiler (5) comprises a flue gas preheater (501), a low-pressure steam drum (502), a low-pressure superheater (503), a high-pressure steam drum (504) and a high-pressure superheater (505), a water outlet of the flue gas preheater (501) is simultaneously connected with a water inlet of the low-pressure steam drum (502) and a water inlet of the high-pressure steam drum (504), an outlet of the low-pressure steam drum (502) is connected with an inlet of the high-pressure steam turbine (505) through a high-pressure steam drum (24), and a second valve (42) is arranged at the steam inlet of the high-pressure cylinder (6) of the steam turbine, the steam outlet of the high-pressure cylinder (6) of the steam turbine is connected with the steam inlet of the low-pressure cylinder (7) of the steam turbine through a communicating pipe (26), a hydraulic butterfly valve (44) is arranged at the steam inlet of the low-pressure cylinder (7) of the steam turbine, the communicating pipe (26) is connected with one end of a low-pressure steam pipe (27), a fourth valve (45) is arranged at one end of the low-pressure steam pipe (27), the steam outlet of the low-pressure superheater (503) is connected with the other end of the low-pressure steam pipe (27), a fifth valve (46) is arranged at the other end of the low-pressure steam pipe (27), the steam turbine low pressure cylinder (7) has a steam outlet connected with a condenser (9), a boiler water feed pipe (21) has a water inlet connected with the condenser (9), a boiler water feed pipe (21) has a water outlet connected with a water inlet of a flue gas preheater (501), a condensate pump (10), a shaft seal heater (11) and a deaerator (12) are sequentially arranged on the boiler water feed pipe (21) along the water flow direction, the deaerator (12) is connected with a low pressure steam pipe (27) through a deaeration steam extraction pipe (33), a sixteen valve (57) is arranged on the deaeration steam extraction pipe (33), and a steam inlet of a high pressure steam bypass (25) is connected with a high pressure steam pipe (24), and a third valve (43) is installed on the high-pressure steam bypass (25), the steam inlet end of the first high-pressure steam branch pipe (28) is connected with the steam outlet end of the high-pressure steam bypass (25), a sixth valve (47) is installed on the first high-pressure steam branch pipe (28), the high-pressure steam inlet of the pressure matcher (14) is connected with the steam outlet end of the first high-pressure steam branch pipe (28), the low-pressure steam inlet of the pressure matcher (14) is connected with the low-pressure steam pipe (27) through the low-pressure steam bypass (31), the medium-pressure steam outlet of the pressure matcher (14) is connected with the industrial steam supply pipe (34), and a seventh valve (48) and an eighth valve (49) are respectively installed at the medium-pressure steam outlets of the low-pressure steam bypass (31) and the pressure matcher (14), the steam inlet of the second high-pressure steam branch pipe (29) is connected with the steam outlet of the high-pressure steam bypass (25), the steam inlet of the first temperature-reduction pressure-reduction device (15) is connected with the steam outlet of the second high-pressure steam branch pipe (29), the steam outlet of the first temperature-reduction pressure-reduction device (15) is connected with the industrial steam supply pipe (34), the steam outlets of the second high-pressure steam branch pipe (29) and the first temperature-reduction pressure-reduction device (15) are respectively provided with a nine-valve (50) and a ten-valve (51), the steam inlet of the third high-pressure steam branch pipe (30) is connected with the steam outlet of the high-pressure steam bypass (25), the steam outlet end of the third high-pressure steam branch pipe (30) is connected with the steam inlet of the steam heat accumulator (17), an eleven-number valve (52), a second temperature and pressure reducing device (16) and a twelve-number valve (53) are sequentially arranged on the third high-pressure steam branch pipe (30) along the steam flow direction, the steam outlet of the steam heat accumulator (17) is connected with an industrial steam supply pipe (34), and a thirteen-number valve (54) is arranged at the steam outlet of the steam heat accumulator (17); the steam outlet of the steam heat accumulator (17) is also connected with a low-pressure steam pipe (27) through a first low-pressure steam branch pipe (32), and a fourteen-number valve (55), a third temperature and pressure reducing device (18) and a fifteen-number valve (56) are sequentially arranged on the first low-pressure steam branch pipe (32) along the steam flow direction; the industrial steam supply pipe (34) is connected with the pressure matcher (14), the first temperature and pressure reducing device (15) and the steam heat accumulator (17) at the same time, and seventeen valves (58) are arranged on the industrial steam supply pipe (34).
2. The combined cycle power peak shaving system based on steam extraction coupling heat accumulation as claimed in claim 1, wherein the boiler water supplementing pipe (22) is connected with a water inlet of the condensate pump (10), and the water supplementing pump (13) and the valve (41) are sequentially arranged on the boiler water supplementing pipe (22) along the water flowing direction.
3. The combined cycle power peak shaving system based on the steam extraction coupling heat storage according to claim 1, wherein the high pressure steam bypass (25) is connected with the first high pressure steam branch pipe (28), the second high pressure steam branch pipe (29) and the third high pressure steam branch pipe (30) at the same time.
4. A method of operating a combined cycle power peaking system based on extraction and coupled thermal storage as claimed in any one of claims 1 to 3, characterized in that the method of operation is as follows:
when the unit is in a pure condensation working condition and no power peak regulation requirement exists:
the second valve (42), the hydraulic butterfly valve (44), the fourth valve (45), the fifth valve (46) and the sixteen valve (57) are opened, the combined cycle unit does not supply heat to the outside, and the deoxidized steam of the deoxidizer (12) is from the low-pressure steam supplementing of the low-pressure superheater (503);
when the unit is in a pure condensation working condition and has power peak regulation requirements:
A. when the unit needs to reduce the electric load to the external output, mainly carry out steam heat accumulation through steam heat accumulator (17), reduce the steam flow who gets into the steam turbine and do work, this moment:
opening a valve III (43) and a valve eleven (52), and directly enabling high-pressure steam from the high-pressure superheater (505) to enter a second temperature and pressure reduction device (16), and conveying the high-pressure steam to a steam heat accumulator (17) for heat accumulation by opening a valve twelve (53) after temperature and pressure reduction, so that the steam flow entering a steam turbine for work is reduced;
B. when the unit needs to increase the external output electric load, the heat release of steam is mainly carried out through the steam heat accumulator (17), the steam flow entering the steam turbine for doing work is increased, and at the moment:
closing a third valve (43), an eleventh valve (52) and a twelfth valve (53), simultaneously opening a thirteenth valve (54), a fourteenth valve (55) and a fifteenth valve (56), and enabling steam output by the steam heat accumulator (17) to enter a third temperature and pressure reducing device (18), and conveying the steam to a low-pressure cylinder (7) of the steam turbine after temperature and pressure reduction to increase the steam flow entering the steam turbine for acting;
when the unit is in a heating working condition and no power peak regulation is required:
the seventeen valve (58) is opened, steam is supplied to the external heat user through the industrial steam supply pipe (34), and the specific operation method for supplying steam to the external heat user at the moment is as follows:
opening a valve III (43), a valve VI (47), a valve IV (48) and a valve V (49), taking high-pressure steam of a high-pressure superheater (505) as high-pressure steam inlet of a pressure matcher (14), taking low-pressure steam supplementing of a low-pressure superheater (503) or steam exhaust of a high-pressure cylinder (6) of a steam turbine as low-pressure steam inlet of the pressure matcher (14), and outputting medium-pressure steam by the pressure matcher (14) for supplying steam to external heat users;
or, opening a third valve (43), a ninth valve (50) and a tenth valve (51), enabling high-pressure steam of the high-pressure superheater (505) to enter the first temperature and pressure reduction device (15), and outputting medium-pressure steam after temperature and pressure reduction for supplying steam to external heat users;
when the unit is in a heating working condition and has power peak regulation requirements:
A. when the unit needs to reduce the external output electric load, the steam heat storage is mainly carried out through the steam heat accumulator (17), the steam flow entering the steam turbine for doing work is reduced, and the specific operation is as follows:
opening an eleventh valve (52) and a twelfth valve (53), enabling high-pressure steam of the high-pressure superheater (505) to enter a second temperature and pressure reduction device (16), and conveying the high-pressure steam to a steam heat accumulator (17) for heat accumulation after temperature reduction and pressure reduction, so that the steam flow entering a steam turbine for acting is reduced;
B. when the unit needs to increase the external output electric load, the steam heat accumulator (17) is utilized to replace the pressure matcher (14) and the first temperature and pressure reducing device (15), and the steam heat is released through the steam heat accumulator (17) to supply steam for external heat users, so that the steam flow entering the steam turbine to do work is increased, and the specific operation is as follows:
closing the valve No. 47, the valve No. 48 and the valve No. 49, and enabling the pressure matcher (14) to work no longer;
closing the valve No. 50 and the valve No. 51, and stopping the first temperature and pressure reducing device (15) from working;
at the moment, the valve III (43), the valve eleven (52) and the valve twelve (53) are closed, the valve thirteen (54) is opened, the steam accumulator (17) outputs steam, and the valve seventeen (58) is opened to supply steam to an external heat user through the industrial steam supply pipe (34).
5. The operation method of the combined cycle power peak shaving system based on the steam extraction coupling heat accumulation, which is characterized in that:
when the unit is in a heat supply working condition and no power peak regulation requirement exists, the pressure matcher (14) is preferentially selected to supply steam for external heat users, and the first temperature and pressure reduction device (15) is selected to supply steam for the external heat users;
when the unit is in a heat supply working condition and has power peak regulation requirements, the steam heat accumulator (17) is preferentially selected to supply steam to external heat users, the pressure matcher (14) is selected to supply steam to the external heat users, and the first temperature and pressure reduction device (15) is selected to supply steam to the external heat users.
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1524236A (en) * | 1974-12-16 | 1978-09-06 | Exxon Research Engineering Co | Energy storage and transference by means of liquid heat retention materials |
| JPH08260907A (en) * | 1995-03-24 | 1996-10-08 | Toshiba Corp | Steam storing electric power plant |
| JP2002266606A (en) * | 2001-03-12 | 2002-09-18 | Mitsui Eng & Shipbuild Co Ltd | Thermal energy storing power generating method |
| DE102008034193A1 (en) * | 2008-07-21 | 2010-01-28 | Oao "Vniiaes" | Thermal power station i.e. coal-based thermal power station, operating device, has channel conveying condensate by condensate pump, where condensate is supplied into degasser and is conveyed into generator by feed pump |
| CN101876299A (en) * | 2010-05-24 | 2010-11-03 | 北京京仪仪器仪表研究总院有限公司 | Method and system for combing solar energy thermal power generation with biomass power generation |
| CN101994531A (en) * | 2009-08-18 | 2011-03-30 | 刘绍允 | Closed circulatory phase-change heat supply system for heat and power cogeneration |
| CN203035350U (en) * | 2013-01-27 | 2013-07-03 | 南京瑞柯徕姆环保科技有限公司 | Britten-hybrid combined steam rankine cycle power generation device |
| CN104088703A (en) * | 2014-06-24 | 2014-10-08 | 华北电力大学 | Compressed air energy storage-combined cycle integration system of intercooled preheating steam turbine |
| CN204730670U (en) * | 2015-05-13 | 2015-10-28 | 湖南中冶长天节能环保技术有限公司 | A kind of residual heat and energy comprehensive utilization TRT |
| CN106196697A (en) * | 2016-07-28 | 2016-12-07 | 华北电力大学 | Thermoelectricity unit and peak regulating method thereof associated with steam drive heat pump and regenerative apparatus |
| CN106640237A (en) * | 2016-08-29 | 2017-05-10 | 华电电力科学研究院 | System for improving thermal power straight condensing unit flexibility and running method of system |
| CN206280111U (en) * | 2016-10-31 | 2017-06-27 | 中国电力工程顾问集团华北电力设计院有限公司 | Suitable for the therrmodynamic system of thermal power plant unit depth peak regulation |
| CN107013892A (en) * | 2017-05-17 | 2017-08-04 | 杭州锅炉集团股份有限公司 | A kind of combustion engine waste heat boiler device with fused salt heat accumulation |
| CN107143391A (en) * | 2016-12-16 | 2017-09-08 | 华北电力大学 | A kind of new middle backheating gas turbine combined cycle system |
| CN108167035A (en) * | 2017-12-01 | 2018-06-15 | 浙江大学 | A kind of thermoelectricity cooperative system and method adjusted based on reheating accumulation of heat |
| CN108167034A (en) * | 2017-12-01 | 2018-06-15 | 浙江大学 | A kind of combustion and steam thermoelectricity cooperative system and method adjusted based on accumulation of heat steam |
| CN108592137A (en) * | 2018-07-13 | 2018-09-28 | 大连亨利测控仪表工程有限公司 | A kind of thermal power plant's flexibility transformation twin-tub decoupling depth peak regulation system |
| CN108678821A (en) * | 2018-05-11 | 2018-10-19 | 华电能源股份有限公司富拉尔基发电厂 | A kind of steam turbine start and stop peak regulation heating system for realizing the decoupling of fired power generating unit thermoelectricity |
| CN108953083A (en) * | 2018-06-26 | 2018-12-07 | 华北电力大学 | One kind being based on groove type solar gas Combined loop distribution formula electricity generation system and method |
| CN210088820U (en) * | 2019-02-02 | 2020-02-18 | 华电电力科学研究院有限公司 | Combined cycle power peak regulation system based on steam extraction coupling heat storage |
-
2019
- 2019-02-02 CN CN201910108094.7A patent/CN109855079B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1524236A (en) * | 1974-12-16 | 1978-09-06 | Exxon Research Engineering Co | Energy storage and transference by means of liquid heat retention materials |
| JPH08260907A (en) * | 1995-03-24 | 1996-10-08 | Toshiba Corp | Steam storing electric power plant |
| JP2002266606A (en) * | 2001-03-12 | 2002-09-18 | Mitsui Eng & Shipbuild Co Ltd | Thermal energy storing power generating method |
| DE102008034193A1 (en) * | 2008-07-21 | 2010-01-28 | Oao "Vniiaes" | Thermal power station i.e. coal-based thermal power station, operating device, has channel conveying condensate by condensate pump, where condensate is supplied into degasser and is conveyed into generator by feed pump |
| CN101994531A (en) * | 2009-08-18 | 2011-03-30 | 刘绍允 | Closed circulatory phase-change heat supply system for heat and power cogeneration |
| CN101876299A (en) * | 2010-05-24 | 2010-11-03 | 北京京仪仪器仪表研究总院有限公司 | Method and system for combing solar energy thermal power generation with biomass power generation |
| CN203035350U (en) * | 2013-01-27 | 2013-07-03 | 南京瑞柯徕姆环保科技有限公司 | Britten-hybrid combined steam rankine cycle power generation device |
| CN104088703A (en) * | 2014-06-24 | 2014-10-08 | 华北电力大学 | Compressed air energy storage-combined cycle integration system of intercooled preheating steam turbine |
| CN204730670U (en) * | 2015-05-13 | 2015-10-28 | 湖南中冶长天节能环保技术有限公司 | A kind of residual heat and energy comprehensive utilization TRT |
| CN106196697A (en) * | 2016-07-28 | 2016-12-07 | 华北电力大学 | Thermoelectricity unit and peak regulating method thereof associated with steam drive heat pump and regenerative apparatus |
| CN106640237A (en) * | 2016-08-29 | 2017-05-10 | 华电电力科学研究院 | System for improving thermal power straight condensing unit flexibility and running method of system |
| CN206280111U (en) * | 2016-10-31 | 2017-06-27 | 中国电力工程顾问集团华北电力设计院有限公司 | Suitable for the therrmodynamic system of thermal power plant unit depth peak regulation |
| CN107143391A (en) * | 2016-12-16 | 2017-09-08 | 华北电力大学 | A kind of new middle backheating gas turbine combined cycle system |
| CN107013892A (en) * | 2017-05-17 | 2017-08-04 | 杭州锅炉集团股份有限公司 | A kind of combustion engine waste heat boiler device with fused salt heat accumulation |
| CN108167035A (en) * | 2017-12-01 | 2018-06-15 | 浙江大学 | A kind of thermoelectricity cooperative system and method adjusted based on reheating accumulation of heat |
| CN108167034A (en) * | 2017-12-01 | 2018-06-15 | 浙江大学 | A kind of combustion and steam thermoelectricity cooperative system and method adjusted based on accumulation of heat steam |
| CN108678821A (en) * | 2018-05-11 | 2018-10-19 | 华电能源股份有限公司富拉尔基发电厂 | A kind of steam turbine start and stop peak regulation heating system for realizing the decoupling of fired power generating unit thermoelectricity |
| CN108953083A (en) * | 2018-06-26 | 2018-12-07 | 华北电力大学 | One kind being based on groove type solar gas Combined loop distribution formula electricity generation system and method |
| CN108592137A (en) * | 2018-07-13 | 2018-09-28 | 大连亨利测控仪表工程有限公司 | A kind of thermal power plant's flexibility transformation twin-tub decoupling depth peak regulation system |
| CN210088820U (en) * | 2019-02-02 | 2020-02-18 | 华电电力科学研究院有限公司 | Combined cycle power peak regulation system based on steam extraction coupling heat storage |
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