CN117627742A - Capacity-increasing peak-shaving device and capacity-increasing peak-shaving system of thermal power generating unit - Google Patents
Capacity-increasing peak-shaving device and capacity-increasing peak-shaving system of thermal power generating unit Download PDFInfo
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- CN117627742A CN117627742A CN202211003239.5A CN202211003239A CN117627742A CN 117627742 A CN117627742 A CN 117627742A CN 202211003239 A CN202211003239 A CN 202211003239A CN 117627742 A CN117627742 A CN 117627742A
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- 238000005338 heat storage Methods 0.000 claims abstract description 82
- 239000012530 fluid Substances 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000003546 flue gas Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000003245 coal Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The application provides a volume-increasing peak-shaving device and thermal power generating unit volume-increasing peak-shaving system, include: the heat storage module comprises a low-temperature heat storage unit and a high-temperature heat storage unit, wherein the low-temperature heat storage unit stores low-temperature heat storage media, the high-temperature heat storage unit stores high-temperature heat storage media, and the low-temperature heat storage media absorbs heat to high-temperature steam through flowing to be changed into high-temperature heat storage media so as to store heat; the heat exchange module is characterized in that a first heat exchange side steam inlet of the heat exchange module is communicated with a high-temperature heat storage unit heat storage medium outlet, and a first heat exchange side steam outlet of the heat exchange module is communicated with a low-temperature heat storage unit heat storage medium inlet. According to the embodiment of the application, the running load of the thermal power generating unit is reduced when the capacity and peak of the thermal power generating unit are increased, the effect that the pressure parameter and the temperature parameter are matched with the pressure parameter and the temperature parameter of the steam of the converging pipeline when the steam returns to the unit for generating power again is achieved, and the utilization efficiency of the steam and the working efficiency of the unit are improved.
Description
Technical Field
The application belongs to the technical field of power system dispatching automation, and relates to a capacity-increasing and peak-shaving device and a capacity-increasing and peak-shaving system of a thermal power generating unit.
Background
At present, the installed capacity of the national coal power is about 11 hundred million kilowatts, and the system is a supporting and basic power supply of the power system in China. Under the goal of carbon reaching peak, the carbon emission constraint is increasingly tightened, and the development space of the coal electric installation is very limited. Meanwhile, the power demand of China still maintains a situation of medium-speed growth, the new electric quantity per year exceeds 3000 hundred million kilowatt-hours, and the new electric load exceeds 5000 kilowatts. Due to the intermittence and fluctuation of new energy sources such as wind power, photovoltaic and the like, stable power supply cannot be realized, and the credible capacity is low. Therefore, the energy storage device is necessary to be utilized to increase capacity of the stored coal motor unit, the power generation capacity in the electricity consumption valley period is shifted to the electricity consumption peak period, the peak regulation capacity of the coal motor unit is improved, the requirement of newly increasing power load is met, and the utilization rate of the existing coal motor unit is improved.
Disclosure of Invention
The utility model aims to provide a capacity-increasing peak-shaving device and thermal power generating unit capacity-increasing peak-shaving system, solved how to reduce the operation load of unit, how to make pressure parameter and temperature parameter and the pressure parameter and the temperature parameter phase-match of remittance pipeline steam when steam returns the unit to generate electricity again etc..
To solve the above problem, a first aspect of the present application provides a capacity-increasing peak shaving device, which is characterized by comprising: the heat storage module comprises a low-temperature heat storage unit and a high-temperature heat storage unit, wherein the low-temperature heat storage unit stores low-temperature heat storage media, the high-temperature heat storage unit stores high-temperature heat storage media, and the low-temperature heat storage media absorbs heat to high-temperature steam through flowing to be changed into high-temperature heat storage media so as to store heat; the heat exchange module is characterized in that a first heat exchange side steam inlet of the heat exchange module is communicated with a high-temperature heat storage unit heat storage medium outlet, and a first heat exchange side steam outlet of the heat exchange module is communicated with a low-temperature heat storage unit heat storage medium inlet.
Further, the heat storage module further includes: the heating unit is arranged on a communication pipeline between the low-temperature heat storage unit heat storage medium outlet and the high-temperature heat storage unit heat storage medium inlet.
The second aspect of the application provides a thermal power generating unit capacity-increasing peak shaving system, including foretell device, still include: and the cold fluid side of the reheater is communicated with a steam outlet at the second heat exchange side of the heat exchange module, and the steam at the second heat exchange side of the heat exchange module is converged with the steam at the cold fluid side of the reheater.
Further, the system further comprises: the first steam valve is arranged on a communication pipeline between the cold fluid side of the reheater and the steam outlet at the second heat exchange side of the heat exchange module.
Further, the system further comprises: a main turbine, the main turbine comprising: the system comprises a main turbine high-pressure cylinder, a main turbine medium-pressure cylinder and a main turbine low-pressure cylinder, wherein steam generated by the reheater enters the main turbine medium-pressure cylinder along a steam pipeline so as to convert heat energy of the steam into mechanical energy.
Further, the low pressure cylinder steam outlet of the main steam turbine is communicated with the second heat exchange side steam inlet of the heat exchange module.
Further, the medium pressure cylinder steam outlet of the main steam turbine is communicated with the steam inlet on the second heat exchange side of the heat exchange module.
Further, the system further comprises: and the cold fluid side of the boiler is communicated with the steam outlet of the low-pressure cylinder of the main turbine, and the hot fluid side of the boiler is communicated with the steam inlet of the high-pressure cylinder of the main turbine.
Further, the reheater is arranged on a flue of the boiler, and the high-temperature flue gas of the boiler is utilized to heat the steam input into the reheater.
Further, the system further comprises: the deaeration device is arranged on a communication pipeline between the low-pressure cylinder steam outlet of the main steam turbine and the steam inlet of the boiler.
Further, the medium pressure cylinder steam outlet of the main steam turbine is communicated with the deaerator steam inlet.
Further, the deaerating plant is arranged on a communication pipeline between the low-pressure cylinder steam outlet of the main steam turbine and the steam inlet of the heat exchange module.
Further, the deaerating plant is arranged on a communication pipeline between the medium pressure cylinder steam outlet of the main steam turbine and the steam inlet of the heat exchange module.
Further, the system further comprises: the low-pressure heating device is arranged on a communication pipeline between the low-pressure cylinder steam outlet of the main steam turbine and the steam inlet of the deaerating device.
Further, the system further comprises: the high-pressure heating device is arranged on the communication pipeline of the steam outlet of the deoxidizing device and the cold fluid side of the boiler.
The third aspect of the application provides a thermal power generating unit increases capacity peak shaver system, including foretell device, its characterized in that still includes: and the hot fluid side of the reheater is communicated with a steam outlet of the second heat exchange side of the heat exchange module, so that the steam heated by the heat exchange module is converged with the hot fluid side steam pipeline of the reheater.
Further, the system further comprises: the second steam valve is arranged on a communication pipeline between the hot fluid side of the reheater and the steam outlet at the second heat exchange side of the heat exchange module.
The technical scheme of the application has the following beneficial technical effects: according to the capacity-increasing and peak-shaving device and the capacity-increasing and peak-shaving system of the thermal power generating unit, when the electric load demand is low and the thermal power generating unit is required to reduce load and peak shaving, heat of main steam generated by the boiler 1 and reheat steam heated by the reheater 2 is stored in the heat storage module, so that the load of the unit is reduced, and deep peak shaving is performed; and in the electric load demand peak period and when the thermal power unit is required to increase load or peak, the heat in the heat storage module heats the water supply of the unit through the heat exchange module to generate superheated steam, and the superheated steam is sent to the cold end of the reheater 2 or the hot end of the reheater 2 of the unit. According to the embodiment of the application, under the condition that the load of the boiler 1 is unchanged, the load of the unit is increased, the peak capacity increasing of the unit is carried out, the running load of the thermal power unit during capacity increasing and peak regulating is reduced, the effect that the pressure parameter and the temperature parameter are matched with the pressure parameter and the temperature parameter of the converging pipeline steam when the steam returns to the unit for generating power again is achieved, and the utilization efficiency of the steam and the working efficiency of the unit are improved.
Drawings
FIG. 1 is a schematic structural diagram of a thermal power generating unit capacity-increasing peak shaving system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a thermal power generating unit capacity-increasing peak shaving system according to another embodiment of the present application.
Reference numerals:
1. a boiler; 2. a reheater; 3. a main turbine high pressure cylinder; 4. a main turbine intermediate pressure cylinder; 5. a main steam low pressure cylinder; 6. a generator; 7. a condensate pump; 8. a low pressure heating device; 9. an oxygen removal device; 10. a first feed water pump; 11. a high pressure heating device; 12. a second feed water pump; 13. a heat exchange module; 14. a low temperature heat storage unit; 15. a low temperature heat storage medium circulating pump; 16. a heating unit; 17. a high temperature heat storage unit; 18. a high temperature heat storage medium circulation pump; 19. a first steam valve; 20. and a second steam valve.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings. It should be understood that the description is only exemplary and is not intended to limit the scope of the present application. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present application.
A schematic structural diagram according to an embodiment of the present application is shown in the accompanying drawings. The figures are not drawn to scale, wherein certain details may be exaggerated and some details may be omitted for clarity. The various regions shown in the figures, the shapes of the layers, and the relative sizes and positional relationships between them are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions having different shapes, sizes, relative positions as actually required.
It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.
In a related embodiment of the application, the potential of the existing coal motor unit is excavated, the overload capacity of the unit is improved by modifying the steam turbine on the basis of basically not adding newly added equipment, and the power output of the steam turbine is improved generally by reducing the extraction steam of the low-pressure heater and the high-pressure heater. The related embodiment reduces the heat input of the low-pressure or high-pressure heater, so that the temperature of condensed water and feed water is reduced, and the temperature deviates from the normal operation range, thereby affecting the safety and stability of the operation of the steam-water system and the boiler. Meanwhile, the steam extraction of the low-pressure heater or the high-pressure heater is reduced, so that the overall efficiency of the steam turbine is reduced, and the coal consumption is increased.
In yet another related embodiment of the present application, capacity enhancement is achieved by adding an electrochemical energy storage device to store energy during low load periods and to release energy during peak electricity usage periods. Meanwhile, the electrochemical device can be matched with the thermal power unit to participate in secondary frequency modulation, so that the frequency modulation capacity of the thermal power unit is improved. In this related embodiment, the electrochemical energy storage technology route has the factors of high price, low energy density, poor safety and the like, so that only small-scale demonstration can be performed.
An embodiment of the present application provides a capacity-increasing peak shaving device for solving the above problems, which is characterized by comprising: the heat storage module comprises a low-temperature heat storage unit 14 and a high-temperature heat storage unit 17, wherein the low-temperature heat storage unit 14 stores low-temperature heat storage media, the high-temperature heat storage unit 17 stores high-temperature heat storage media, and the low-temperature heat storage media absorbs heat to high-temperature steam through flowing to be changed into the high-temperature heat storage media so as to store heat; the heat exchange module 13, the first heat exchange side steam inlet of the heat exchange module 13 is communicated with the heat storage medium outlet of the high-temperature heat storage unit 17, and the first heat exchange side steam outlet of the heat exchange module 13 is communicated with the heat storage medium inlet of the low-temperature heat storage unit 14. The heat storage module is used for heat exchange between the heat storage medium and steam.
In some embodiments, the heat storage module further comprises: and the heating unit 16, wherein the heating unit 16 is arranged on a communication pipeline of the heat storage medium outlet of the low-temperature heat storage unit 14 and the heat storage medium inlet of the high-temperature heat storage unit 17.
As shown in fig. 1, the embodiment of the application further provides a thermal power generating unit capacity-increasing peak-shaving system, including the above device, further including: the cold fluid side of the reheater 2 is communicated with a second heat exchange side steam outlet of the heat exchange module 13, and the second heat exchange side steam of the heat exchange module (13) is converged with the steam of the cold fluid side of the reheater. Wherein the reheater 2 is used for heating the steam delivered to the reheater.
In some embodiments, the system further comprises: the first steam valve 19, the first steam valve 19 is arranged on a communication pipeline between the cold fluid side of the reheater 2 and the steam outlet of the second heat exchange side of the heat exchange module 13.
In some embodiments, the system further comprises: a main turbine, the main turbine comprising: the steam generated by the reheater 2 enters the main turbine intermediate pressure cylinder 4 along a steam pipeline so as to convert the heat energy of the steam into mechanical energy.
In some embodiments, the main turbine low pressure cylinder 5 steam outlet communicates with the second heat exchange side steam inlet of the heat exchange module 13.
In some embodiments, the main turbine intermediate pressure cylinder 4 steam outlet communicates with the second heat exchange side steam inlet of the heat exchange module 13.
In some embodiments, the system further comprises: the boiler 1 is used for generating steam, the cold fluid side of the boiler 1 is communicated with a steam outlet of the low-pressure cylinder 5 of the main turbine, and the hot fluid side of the boiler 1 is communicated with a steam inlet of the high-pressure cylinder 3 of the main turbine.
In some embodiments, the reheater 2 is disposed in a flue of the boiler 1, and the steam input to the reheater 2 is heated by the high temperature flue gas of the boiler 1.
In some embodiments, the system further comprises: the deaeration device 9, the deaeration device 9 is arranged on a communication pipeline between a steam outlet of the low-pressure cylinder 5 of the main turbine and a steam inlet of the boiler 1. In some embodiments, the deoxygenator 9 removes dissolved oxygen and other gases from the thermodynamic system feed water to prevent corrosion of the thermodynamic equipment, while the deoxygenator 9 inputs condensate and high temperature steam and outputs feed water.
In some embodiments, the steam outlet of the intermediate pressure cylinder 4 of the main turbine is in communication with the steam inlet of the deaeration device 9.
In some embodiments, the deaeration device 9 is arranged on a communication pipe between the steam outlet of the low pressure cylinder 5 of the main turbine and the steam inlet of the heat exchange module 13.
In some embodiments, the deaeration device 9 is arranged on a communication pipeline between the steam outlet of the pressure cylinder 4 and the steam inlet of the heat exchange module 13 in the main turbine.
In some embodiments, the system further comprises: the low-pressure heating device 8 is arranged on a communication pipeline between the steam outlet of the low-pressure cylinder 5 of the main turbine and the steam inlet of the deaerating device 9. The low-pressure heating device 8 heats the condensed water by utilizing the steam heat of the main turbine intermediate pressure cylinder 4 and the main turbine low pressure cylinder 5, improves the water temperature, and then sends the condensed water into the deaerating device 9.
In some embodiments, a condensate pump 7 is arranged on a communication pipeline between the steam outlet of the low pressure cylinder 5 of the main turbine and the steam inlet of the deaeration device 9.
In some embodiments, a first feedwater pump 10 is provided on the communication piping of the deaerator 9 steam outlet and the cold fluid side of the boiler 1.
In some embodiments, a second feedwater pump 12 is provided on the communication pipe between the steam outlet of the deaerator 9 and the steam inlet on the second body side of the heat exchange module 13.
In some embodiments, a low temperature heat storage medium circulation pump 15 is provided at the heat storage medium outlet of the low temperature heat storage unit 14.
In some embodiments, a high temperature heat storage medium circulation pump 18 is provided at the heat storage medium outlet of the high temperature heat storage unit 17.
In some embodiments, the system further comprises: the high-pressure heating device 11, the high-pressure heating device 11 is arranged on the communication pipeline of the steam outlet of the deaeration device 9 and the cold fluid side of the boiler 1. The high-pressure heating device 11 heats the feed water by using the steam heat in the main turbine high-pressure cylinder 3 and the main turbine intermediate-pressure cylinder 4, increases the water temperature, and feeds the feed water into the boiler 1.
In some embodiments, the feedwater deoxygenated by deoxygenation device 9 is delivered at elevated pressure to the boiler to a device that meets the boiler water demand.
As shown in fig. 2, an embodiment of the present application further provides a thermal power generating unit capacity-increasing peak-shaving system, including the above device, and is characterized in that the system further includes: and the reheater 2, wherein the hot fluid side of the reheater 2 is communicated with a steam outlet of the second heat exchange side of the heat exchange module 13, so that the steam heated by the heat exchange module 13 is converged with a steam pipeline on the hot fluid side of the reheater 2.
In some embodiments, the system further comprises: and the second steam valve 20 is arranged on a communication pipeline between the hot fluid side of the reheater 2 and the steam outlet of the second heat exchange side of the heat exchange module 13.
In some embodiments, the heat exchange module 13 comprises a steam generator; the steam outlet of the steam generator is communicated with the reheater 2, and the steam pressure is regulated and controlled through the first steam valve 19 or the second steam valve 20, so that the steam is matched and converged with the steam pressure, the temperature and the like of the corresponding pipeline.
According to the capacity-increasing and peak-shaving device and the capacity-increasing and peak-shaving system of the thermal power generating unit, when the electric load demand is low and the thermal power generating unit is required to reduce load and peak shaving, heat of main steam generated by the boiler 1 and reheat steam heated by the reheater 2 is stored in the heat storage module, so that the load of the unit is reduced, and deep peak shaving is performed; and in the electric load demand peak period and when the thermal power unit is required to increase load or peak, the heat in the heat storage module heats the water supply of the unit through the heat exchange module to generate superheated steam, and the superheated steam is sent to the cold end of the reheater 2 or the hot end of the reheater 2 of the unit. According to the embodiment of the application, under the condition that the load of the boiler 1 is unchanged, the load of the unit is increased, the peak capacity increasing of the unit is carried out, the running load of the thermal power unit during capacity increasing and peak regulating is reduced, the effect that the pressure parameter and the temperature parameter are matched with the pressure parameter and the temperature parameter of the converging pipeline steam when the steam returns to the unit for generating power again is achieved, and the utilization efficiency of the steam and the working efficiency of the unit are improved.
It is to be understood that the above-described embodiments of the present application are merely illustrative of or explanation of the principles of the present application and are in no way limiting of the present application. Accordingly, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present application are intended to be included within the scope of the present application. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
The present application is described above with reference to embodiments thereof. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present application. The scope of the application is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the present application, and such alternatives and modifications are intended to fall within the scope of the present application.
Although embodiments of the present application have been described in detail, it should be understood that various changes, substitutions, and alterations can be made hereto without departing from the spirit and scope of the present application.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While nevertheless, obvious variations or modifications may be made to the embodiments described herein without departing from the scope of the invention.
Claims (17)
1. A capacity-increasing peak-shaving device, comprising:
the heat storage module comprises a low-temperature heat storage unit (14) and a high-temperature heat storage unit (17), wherein the low-temperature heat storage unit (14) stores a low-temperature heat storage medium, the high-temperature heat storage unit (17) stores a high-temperature heat storage medium, and the low-temperature heat storage medium absorbs heat to high-temperature steam through flowing to be changed into the high-temperature heat storage medium so as to store heat;
the heat exchange module (13), the first heat exchange side steam inlet of the heat exchange module (13) is communicated with the heat storage medium outlet of the high-temperature heat storage unit (17), and the first heat exchange side steam outlet of the heat exchange module (13) is communicated with the heat storage medium inlet of the low-temperature heat storage unit (14).
2. The apparatus of claim 1, wherein the thermal storage module further comprises:
and the heating unit (16) is arranged on a communication pipeline between the heat storage medium outlet of the low-temperature heat storage unit (14) and the heat storage medium inlet of the high-temperature heat storage unit (17).
3. A thermal power generating unit capacity-increasing peak shaving system comprising the apparatus of claim 1, further comprising:
the cold fluid side of the reheater (2) is communicated with a steam outlet on the second heat exchange side of the heat exchange module (13), and the steam on the second heat exchange side of the heat exchange module (13) is converged with the steam on the cold fluid side of the reheater.
4. A system according to claim 3, wherein the system further comprises:
the first steam valve (19) is arranged on a communication pipeline between the cold fluid side of the reheater (2) and the steam outlet at the second heat exchange side of the heat exchange module (13).
5. A system according to claim 3, wherein the system further comprises:
a main turbine, the main turbine comprising: a main turbine high pressure cylinder (3), a main turbine medium pressure cylinder (4) and a main turbine low pressure cylinder (5),
the steam generated by the reheater (2) enters the intermediate pressure cylinder (4) of the main steam turbine along a steam pipeline so as to convert the heat energy of the steam into mechanical energy.
6. The system according to claim 5, characterized in that the main turbine low pressure cylinder (5) steam outlet communicates with the heat exchange module (13) second heat exchange side steam inlet.
7. The system according to claim 5, characterized in that the steam outlet of the main turbine intermediate pressure cylinder (4) communicates with the second heat exchange side steam inlet of the heat exchange module (13).
8. The system of claim 5, wherein the system further comprises:
the boiler (1), boiler (1) cold fluid side with main steam turbine low pressure jar (5) steam outlet intercommunication, boiler (1) hot fluid side with main steam turbine high pressure jar (3) steam inlet intercommunication.
9. The system according to claim 8, characterized in that the reheater (2) is arranged in the flue of the boiler (1), and the steam fed into the reheater (2) is heated by means of high-temperature flue gases of the boiler (1).
10. The system of claim 8, wherein the system further comprises:
the deaeration device (9), deaeration device (9) set up in main steam turbine low pressure jar (5) steam outlet with on the pipeline that communicates of boiler (1) steam inlet.
11. The system according to claim 10, characterized in that the steam outlet of the main turbine intermediate pressure cylinder (4) communicates with the steam inlet of the deaeration device (9).
12. The system according to claim 11, characterized in that the deaeration device (9) is arranged on a communication conduit of the steam outlet of the main turbine low pressure cylinder (5) and the steam inlet of the heat exchange module (13).
13. The system according to claim 11, characterized in that the deaeration device (9) is arranged on a communication conduit of the steam outlet of the intermediate pressure cylinder (4) of the main turbine and the steam inlet of the heat exchange module (13).
14. The system of claim 10, wherein the system further comprises:
the low-pressure heating device (8), the low-pressure heating device (8) is arranged on a communication pipeline between a steam outlet of the low-pressure cylinder (5) of the main steam turbine and a steam inlet of the deaerating device (9).
15. The system of claim 10, wherein the system further comprises:
the high-pressure heating device (11), the high-pressure heating device (11) is arranged on a communication pipeline between a steam outlet of the deaerating device (9) and the cold fluid side of the boiler (1).
16. A thermal power generating unit capacity-increasing peak shaving system comprising the apparatus of claim 1, further comprising:
and the hot fluid side of the reheater (2) is communicated with a steam outlet of the second heat exchange side of the heat exchange module (13), so that steam heated by the heat exchange module (13) is converged with a hot fluid side steam pipeline of the reheater (2).
17. The system of claim 16, wherein the system further comprises:
the second steam valve (20) is arranged on a communication pipeline between the hot fluid side of the reheater (2) and the steam outlet at the second heat exchange side of the heat exchange module (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211003239.5A CN117627742A (en) | 2022-08-19 | 2022-08-19 | Capacity-increasing peak-shaving device and capacity-increasing peak-shaving system of thermal power generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211003239.5A CN117627742A (en) | 2022-08-19 | 2022-08-19 | Capacity-increasing peak-shaving device and capacity-increasing peak-shaving system of thermal power generating unit |
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| Publication Number | Publication Date |
|---|---|
| CN117627742A true CN117627742A (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211003239.5A Pending CN117627742A (en) | 2022-08-19 | 2022-08-19 | Capacity-increasing peak-shaving device and capacity-increasing peak-shaving system of thermal power generating unit |
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| Country | Link |
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| CN (1) | CN117627742A (en) |
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- 2022-08-19 CN CN202211003239.5A patent/CN117627742A/en active Pending
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