CN114790921A - Method, device, equipment and medium for increasing output range of generator - Google Patents
Method, device, equipment and medium for increasing output range of generator Download PDFInfo
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- CN114790921A CN114790921A CN202210441129.0A CN202210441129A CN114790921A CN 114790921 A CN114790921 A CN 114790921A CN 202210441129 A CN202210441129 A CN 202210441129A CN 114790921 A CN114790921 A CN 114790921A
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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
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
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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
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
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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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a method, a device, equipment and a medium for increasing the output range of a generator, wherein the method is applied to a high-back-pressure heat supply unit and comprises the following steps: acquiring the output range of a generator of the high back pressure heat supply unit; determining the number of the removed heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the removed heaters; and controlling the high back pressure heat supply unit with the heaters of the corresponding number to work. The invention enhances the output and heat supply capability of the generator under the same load of the boiler, thereby increasing the output range of the generator set, and the output of the generator set has wider variation capability and range, thereby better meeting the requirement of power generation.
Description
Technical Field
The invention relates to the technical field of generator output control, in particular to a method, a device, equipment and a medium for increasing the output range of a generator.
Background
The back pressure unit is a generator set which adjusts the power generation load according to the heat load. The high back pressure heat supply aims at increasing the heat supply capacity of the unit, realizing cogeneration, effectively utilizing the high-level energy of steam to generate electricity and supplying heat by using the low-level energy, reducing the cold source loss to zero and improving the heat efficiency of the unit. The maximum output of the generator of the unit is limited due to the increase of back pressure; on the other hand, in order to adhere to the principle of fixing the electricity by heat, the heating capacity of the unit is improved, and the evaporation capacity of the boiler cannot be reduced too low, so that the minimum output of the generator is limited. Therefore, the output of the generator of the high back pressure heat supply unit can only be changed in a small range, and the requirement of power grid dispatching cannot be well met.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, a device, and a medium for increasing a generator output range, so as to solve a problem of a small variation in the generator output range.
The technical scheme provided by the invention is as follows:
the first aspect of the embodiments of the present invention provides a method for increasing the output range of a generator, which is applied to a high back pressure heat supply unit, and includes: acquiring the output range of a generator of the high back pressure heat supply unit; determining the number of the cut heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut heaters; and controlling the high back pressure heat supply unit with the heaters of the corresponding number to work.
According to a first aspect of the embodiments of the present invention, there is provided a method for increasing a generator output range, where a correspondence relationship between the generator output range and a number of heaters includes: when the output range of the generator is a first range, cutting off the heaters to obtain a first preset number; and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number.
According to a first aspect of embodiments of the present invention, there is provided a method for increasing a generator output range, where determining a number of removed heaters according to the generator output range based on a correspondence between the generator output range and a number of removed heaters includes: and determining the number of the cut high-pressure heaters and/or low-pressure heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut low-pressure heaters and the number of the cut high-pressure heaters.
According to a first aspect of the embodiments of the present invention, a method for increasing a power output range of a generator is provided, which controls a high back pressure heat supply unit with a corresponding number of heaters removed to operate, including: and controlling the inlet steam of the heaters in the high back pressure heat supply unit after the corresponding number of heaters are cut off to return to the steam turbine to do work.
A second aspect of the embodiments of the present invention provides a device for increasing the output range of a generator, which is applied to a high back pressure heat supply unit, and includes: the range acquisition module is used for acquiring the output range of the generator of the high back pressure heat supply unit; the heater cutting module is used for determining the number of the cut heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut heaters; and the work control module is used for controlling the work of the high-backpressure heat supply unit after the heaters with corresponding number are cut off.
According to the apparatus for increasing the output range of the generator provided by the second aspect of the embodiment of the present invention, the heater cutting module includes a range determination module, the range determination module is configured to determine the output range of the generator, and when the output range of the generator is a first range, the number of the cut heaters is a first preset number; and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number.
According to the device for increasing the output range of the generator provided by the second aspect of the embodiment of the invention, the heater cutting module comprises a heater information module, and the heater information module is used for storing the corresponding relation between the number of the cut low-pressure heaters in the backpressure unit and the output range of the generator, storing the corresponding relation between the number of the cut high-pressure heaters and the output range of the generator, and determining the number of the cut high-pressure heaters and/or the cut low-pressure heaters according to the output range of the generator.
According to the device for increasing the output range of the generator provided by the second aspect of the embodiment of the invention, the device further comprises a steam returning module, and the steam returning module is used for controlling the inlet steam of the heater in the high back pressure heat supply unit after the corresponding number of heaters are cut off to return to the steam turbine for applying work.
A third aspect of an embodiment of the present invention provides an electronic device, including: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method for increasing the output range of the generator according to any one of the first aspect of the embodiments of the present invention.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium having stored thereon computer instructions for causing a computer to perform a method of increasing a generator capacity range according to any one of the first aspect of embodiments of the present invention.
According to the technical scheme, the embodiment of the invention has the following advantages:
according to the method, the device, the equipment and the medium for increasing the output range of the generator, provided by the embodiment of the invention, when the high back pressure unit operates, the number of the cut heaters is determined according to the output range of the generator, then the high back pressure heat supply unit with the corresponding number of the heaters cut off is controlled to work, the economy of the unit is not affected after steam admission of the heaters is cut off, the cut-off state operation can be kept for a long time, the output of the generator and the high back pressure heat supply capacity of the unit change along with the change of the evaporation capacity of the boiler, the output and the heat supply capacity of the generator are enhanced under the same load of the boiler, the output range of the generator of the unit is further increased, the output of the unit has wider change capacity and range, and the demand of power generation is better met.
Drawings
In order to more clearly express the technical scheme of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method of increasing generator output range in an embodiment of the present invention;
FIG. 2 is a block diagram of a high back pressure heat supply unit according to an embodiment of the present invention;
FIG. 3 is a block diagram of an apparatus for increasing the output range of a generator according to an embodiment of the present invention;
FIG. 4 is a block diagram of an electronic device in an embodiment of the invention;
fig. 5 is a block diagram of a storage medium according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the invention provides a method for increasing the output range of a generator, which is applied to a high-back-pressure heat supply unit, and referring to fig. 1, the method comprises the following steps:
and S100, obtaining the output range of the generator of the high-backpressure heat supply unit.
Referring to fig. 2, the high back pressure heat supply unit applied to the method for increasing the output range of the generator in the embodiment of the present invention includes a boiler, a steam turbine, a condenser, a deaerator, a high pressure heater, and a low pressure heater, where the steam turbine includes a high pressure cylinder, an intermediate pressure cylinder, and a low pressure cylinder. In the prior art, water is heated into steam in a boiler, the steam enters a steam turbine through a main steam pipeline, the exhaust steam of the steam turbine which does work enters a condenser, a high back pressure unit supplies heat by using the heat from the exhaust steam of the steam turbine to the condenser, and condensed water is heated by a heater and enters the boiler to complete circulation. The output of the generator is also called as the active power of the generator, and the output range of the generator of the high-back-pressure heat supply unit is regulated and controlled by a unit manager and set according to the actual power generation requirement.
And S200, determining the number of the cut heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut heaters.
In the prior art, in order to improve the thermal efficiency, some of the steam which has performed work is extracted from the turbine after some intermediate stages to high and low pressure heaters for heating the condensed water and the feed water. In the embodiment, the inlet steam of the heater is cut off, so that the inlet steam of the heater returns to the steam turbine to do work. The unit heater has the function of improving the temperature of condensed water and feed water by the steam extraction and back heating of the steam turbine so as to reduce the loss of a cold source, and the high back pressure heat supply unit does not have the loss of the cold source by utilizing the heat load of a condenser for heat supply, so that the economy of the unit is not influenced after the heater is cut off, and the deaerator has two functions of heating and deaerating, so the unit heater is not suitable for cutting off. In combination with the above reasons, the embodiment of the invention increases the output range of the generator by cutting off the number of heaters. And storing the corresponding relation between the output range of the generator and the number of the cut heaters before the unit operates, and then determining the number of the cut heaters according to the output range of the generator after the desired output range of the generator is obtained during operation. The corresponding relation between the output range of the generator and the number of the cut heaters can be obtained through a calibration test, and the corresponding relation is obtained by sequentially cutting off any number of heaters and recording the output range of the generator at the moment.
And step S300, controlling the high back pressure heat supply unit with the heaters of the corresponding number to work.
Because the heater is cut off, the output of the generator and the heat load of the condenser are increased, the high back pressure heat supply unit is controlled to work after the heater is cut off to keep running for a long time, the output of the generator and the high back pressure heat supply capacity of the unit change along with the change of the evaporation capacity of the boiler, the output of the generator and the heat supply capacity of the generator are enhanced under the same load of the boiler, the load of the boiler usually has a certain range and cannot exceed the range to run for a long time, therefore, the method provided by the embodiment of the application can enable the unit to have wide change capacity and range when the load range of the boiler is unchanged, the flexibility of the unit is enhanced, the output of the generator range is increased, and the unit can adjust the output range of the generator according to the requirement.
According to the method for increasing the output range of the generator, when the high back pressure unit operates, the number of the cut heaters is determined according to the output range of the generator, then the high back pressure heat supply unit with the corresponding number of the heaters cut off is controlled to work, the economy of the unit is not affected after steam admission of the heaters is cut off, the unit can be kept to operate in a cut-off state for a long time, along with the change of the evaporation capacity of the boiler, the output of the generator and the high back pressure heat supply capacity of the unit change accordingly, the output of the generator and the heat supply capacity of the generator are enhanced under the same load of the boiler, the output range of the generator of the unit is further increased, the output of the unit has wide change capacity and range, and the power generation requirement is better met.
In one embodiment, the correspondence between the generator output range and the number of heaters includes: when the output range of the generator is a first range, cutting off the heaters to obtain a first preset number; and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number. When the required increased output range of the generator is larger, the number of the cut-off heaters is larger; the smaller the range of generator output required to be increased, the fewer the number of heaters that are switched off. The unit operator can cut off one or more heaters according to the actual conditions, such as the requirement of the output variation range of the generator, so that the flexibility of the unit can be enhanced, and the output range of the generator can be increased. Illustratively, the output range of the generator is 90-100 when the heater is not cut off, the first output range is 95-110, the second output range is 100-120, the first preset number is 2, and the second preset number is 4.
In one embodiment, determining the number of ablated heaters from the generator output range based on the correspondence between the generator output range and the number of ablated heaters comprises: and determining the number of the cut high-pressure heaters and/or the number of the cut low-pressure heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut low-pressure heaters and the number of the cut high-pressure heaters. In some units, the heater comprises a high-pressure heater and a low-pressure heater, when only the high-pressure heater or the low-pressure heater is used, the corresponding relation is obtained according to the method, and when the high-pressure heater and the low-pressure heater are simultaneously used, the high-pressure heater should be cut off first, and then the low-pressure heater should be cut off, so that the high-pressure heater has a larger influence on the output range, and the output range can be quickly adjusted. For example, when the output range is 95-110, 2 high-pressure heaters are selected to be cut off, and when the output range is 100-120, 2 high-pressure heaters and 4 low-pressure heaters are selected to be cut off.
In one embodiment, the operation of the high back pressure heat supply unit after the corresponding number of heaters are cut off is controlled, which includes: and controlling the inlet steam of the heaters in the high back pressure heat supply unit after the corresponding number of heaters are cut off to return to the steam turbine to do work. Because the steam inlet of the original heater returns to the steam turbine to do work, the output of the generator and the heat load of the condenser are increased, the heater can keep running for a long time after being cut off, the output of the generator and the high back pressure heat supply capacity of the unit change along with the change of the evaporation capacity of the boiler, and the output of the generator and the heat supply capacity are enhanced to some extent under the same load of the boiler.
The embodiment of the present invention further provides a device for increasing the output range of a generator, which is applied to a high back pressure heat supply unit, and referring to fig. 3, the device includes:
the range acquisition module 1 is used for acquiring the output range of the generator of the high-back-pressure heat supply unit; for details, reference is made to the corresponding parts of the above method embodiments, which are not described herein again.
The heater cutting module 2 is used for determining the number of the cut heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut heaters; for details, reference is made to the corresponding parts of the above method embodiments, which are not described herein again.
And the work control module 3 is used for controlling the work of the high back pressure heat supply unit after the heaters with the corresponding number are cut off. For details, reference is made to the corresponding parts of the above method embodiments, which are not described herein again.
According to the method for increasing the output range of the generator in the embodiment of the invention, when the high back pressure unit runs, the number of the cut heaters is determined according to the output range of the generator, then the high back pressure heat supply unit with the corresponding number of the heaters cut off is controlled to work, the economy of the unit is not influenced after the steam admission of the heaters is cut off, the unit can be kept running in a cut-off state for a long time, the output of the generator and the high back pressure heat supply capacity of the unit are changed along with the change of the evaporation capacity of the boiler, the output of the generator and the high back pressure heat supply capacity of the unit are enhanced under the same load of the boiler, the output range of the generator of the unit is further increased, the output of the unit has wide change capacity and range, and the demand of power generation is better met.
In one embodiment, the heater cutting module 2 includes a range determination module, the range determination module is configured to determine a generator output range, and when the generator output range is a first range, the number of the cut heaters is a first preset number; and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number. For details, reference is made to the corresponding parts of the above method embodiments, and details are not repeated herein.
In an embodiment, the heater cutting module 2 includes a heater information module, configured to store a corresponding relationship between the number of cut low-pressure heaters in the backpressure unit and the power output range of the generator, and a corresponding relationship between the number of cut high-pressure heaters and the power output range of the generator, and determine the number of cut high-pressure heaters and/or cut low-pressure heaters according to the power output range of the generator. For details, reference is made to the corresponding parts of the above method embodiments, which are not described herein again.
In one embodiment, the device further comprises a steam return module, and the steam return module is used for controlling the inlet steam of the heaters in the high back pressure heat supply unit after the heaters of the corresponding number are cut off to return to the steam turbine to do work. For details, reference is made to the corresponding parts of the above method embodiments, and details are not repeated herein.
The functional description of the device for increasing the output range of the generator provided by the embodiment of the invention refers to the description of the method for increasing the output range of the generator in the above embodiment in detail.
An embodiment of the present invention further provides an electronic device, including: the memory 12 and the processor 11 are communicatively connected to each other, the memory 12 and the processor 11 are configured to store computer instructions, and the processor 11 executes the computer instructions to perform the method for increasing the generator output range according to any one of the first aspect and the first aspect of the embodiment of the present invention. As shown in fig. 4, includes a memory 12 and a processor 11, wherein the processor 11 and the memory 12 may be connected by a bus or other means. Processor 11 may be a Central Processing Unit (CPU). The processor 11 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof. The memory 12, which is a non-transitory computer storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the corresponding program instructions/modules in the embodiments of the present invention. The processor 11 executes various functional applications and data processing of the processor 11 by executing the non-transitory software programs, instructions and modules stored in the memory 12, namely, implements the method of increasing the generator output range in the above method embodiment. The memory 12 may include a storage program area and a storage data area, wherein the storage program area may store an operating device, an application program required for at least one function; the storage data area may store data created by the processor 11, and the like. Further, the memory 12 may include high speed random access memory 12, and may also include non-transitory memory 12, such as at least one piece of disk memory 12, flash memory device, or other non-transitory solid state memory 12. In some embodiments, the memory 12 optionally includes memory 12 located remotely from the processor 11, and these remote memories 12 may be connected to the processor 11 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. One or more modules are stored in the memory 12, which when executed by the processor 11, perform the method of increasing the generator output range as in the above-described method embodiments. The specific details of the electronic device may be understood according to the relevant description and effect corresponding to the method embodiment, and are not described herein again.
An embodiment of the present invention further provides a computer-readable storage medium, as shown in fig. 5, on which a computer program 13 is stored, and when the instructions are executed by a processor, the instructions implement the steps of the method for increasing the output range of a generator in the foregoing embodiment. The storage medium is also stored with audio and video stream data, characteristic frame data, interactive request signaling, encrypted data, preset data size and the like. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), a flash memory (FlashMemory), a hard disk (hard disk drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above. It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program to instruct relevant hardware, and the computer program 13 may be stored in a computer readable storage medium, and when executed, may include the processes of the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), a flash memory (FlashMemory), a hard disk (hard disk drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for increasing the output range of a generator is applied to a high-backpressure heat supply unit and is characterized by comprising the following steps:
acquiring the output range of a generator of the high back pressure heat supply unit;
determining the number of the removed heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the removed heaters;
and controlling the high back pressure heat supply unit with the heaters of the corresponding number to work.
2. The method of increasing generator output range of claim 1, wherein said generator output range to heater number correspondence comprises:
when the output range of the generator is a first range, cutting off the heaters to be a first preset number;
and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number.
3. The method of increasing a generator output range of claim 1, wherein determining the number of excised heaters from the generator output range based on the correspondence between the generator output range and the number of excised heaters comprises:
and determining the number of the cut high-pressure heaters and/or low-pressure heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut low-pressure heaters and the number of the cut high-pressure heaters.
4. The method of claim 1, wherein controlling the operation of the high back pressure heating unit after the corresponding number of heaters are removed comprises:
and controlling the inlet steam of the heaters in the high back pressure heat supply unit after the corresponding number of heaters are cut off to return to the steam turbine to do work.
5. The utility model provides an increase device of generator range of exerting oneself, is applied to high back pressure heat supply unit, its characterized in that includes:
the range acquisition module is used for acquiring the output range of the generator of the high back pressure heat supply unit;
the heater cutting module is used for determining the number of the cut heaters according to the output range of the generator based on the corresponding relation between the output range of the generator and the number of the cut heaters;
and the work control module is used for controlling the work of the high-backpressure heat supply unit after the heaters with corresponding number are cut off.
6. The apparatus for increasing the output range of a generator according to claim 5, wherein the heater cutting module comprises a range determining module, the range determining module is configured to determine the output range of the generator, and when the output range of the generator is a first range, the number of the cutting heaters is a first preset number; and when the output range of the generator is a second range, the number of the cutting heaters is a second preset number, the second range is larger than the first range, and the second preset number is larger than the first preset number.
7. The method of claim 5, wherein the heater cutting module comprises a heater information module for storing a correspondence relationship between the number of cut low pressure heaters in the backpressure unit and the generator output range, and a correspondence relationship between the number of cut high pressure heaters and the generator output range, and determining the number of cut high pressure heaters and/or low pressure heaters according to the generator output range.
8. The method for increasing the output range of a generator of claim 5, further comprising a steam return module for controlling the inlet steam of the heater in the high back pressure heat supply unit after the corresponding number of heaters are cut off to return to the turbine for applying work.
9. An electronic device, comprising: a memory and a processor communicatively coupled to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the method of increasing generator contribution range of any of claims 1-4.
10. A computer readable storage medium storing computer instructions for causing a computer to perform the method of increasing generator contribution range of any of claims 1-4.
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Citations (7)
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