Quantity optimization method, system and equipment for circulating pumps, medium and program product

Abstract

The invention provides a circulating pump quantity optimization method, system and device, a medium and a program product, and the method comprises the steps: obtaining historical parameter data and real-time environment data; based on the historical parameter data and the real-time environment data, a plurality of sets of steam turbine heat consumption rates, boiler heat efficiency and station service power consumption rates corresponding to different circulating pump operation numbers in the current environment are obtained; obtaining a plurality of power supply coal consumptions corresponding to different circulating pump operation numbers in the current environment based on the plurality of groups of steam turbine heat consumption rates, boiler heat efficiency and station service power consumption rates; and obtaining the target circulating pump operation number in the current environment based on the plurality of power supply coal consumptions corresponding to the different circulating pump operation numbers. The power supply coal consumption under different circulating pump operation numbers is predicted through a reverse balance operation method, and compared with a positive balance operation method, the optimal circulating pump operation number under the current environment can be calculated in real time, so that the coal consumption of a unit is reduced.

Description

Technical Field

[0001] The present invention relates to the field of electric power engineering technology, and in particular to a method, system, equipment, medium and program product for optimizing the number of circulating pumps. Background Art

[0002] In thermal power plants, circulating water pumps are important auxiliary equipment, referred to as circulating pumps, and their power consumption accounts for about 10%-15% of the plant's electricity consumption. Traditional methods for controlling the number of circulating pumps in operation mostly rely on manual experience or fixed modes, which makes it difficult to optimize and adjust according to the actual operating conditions of the unit, resulting in energy waste. In the existing technology, the only way to determine the appropriate number of circulating pumps is through a positive balance algorithm, that is, the coal consumption under different numbers of circulating pumps is determined based on the total amount of fuel transported to the coal bunker, thereby switching to a number of circulating pumps with lower coal consumption. However, the fuel transported to the coal bunker will not be consumed immediately. Therefore, it is difficult to obtain the power supply coal consumption corresponding to the current number of circulating pumps in a short period of time, and it is also impossible to determine whether the current number of circulating pumps is ideal. In addition, it is impossible to calculate the power supply coal consumption corresponding to the number of other circulating pumps in operation. Therefore, the existing technology makes it difficult to accurately determine how many circulating pumps are most ideal in the current environment. Summary of the Invention

[0003] The technical problem to be solved by the present disclosure is to overcome the defect in the prior art that it is difficult to accurately judge how many circulating pumps should be opened for coal consumption under the current environment, and to provide a method, system, equipment, medium and program product for optimizing the number of circulating pumps.

[0004] The present disclosure solves the above technical problems through the following technical solutions:

[0005] The present disclosure provides a method for optimizing the number of circulating pumps, comprising:

[0006] Acquiring historical parameter data and real-time environmental data, wherein the historical parameter data includes the turbine heat rate, boiler thermal efficiency, and plant power rate of the thermal power unit corresponding to different numbers of circulating pumps in different environments;

[0007] Based on the historical parameter data and the real-time environmental data, several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates corresponding to different numbers of circulating pumps in operation under the current environment are obtained;

[0008] Based on the several groups of steam turbine heat consumption rates, boiler thermal efficiencies and plant power consumption rates, several power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment are obtained;

[0009] The target circulating pump operation quantity under the current environment is obtained based on the several power supply coal consumptions corresponding to different circulating pump operation quantities.

[0010] Optionally, the method for optimizing the number of circulation pumps further includes:

[0011] If the current first circulating pump operation quantity of the thermal power generation unit is not equal to the target circulating pump operation quantity, obtaining the current first auxiliary power consumption rate and first back pressure of the thermal power generation unit;

[0012] Obtaining a second auxiliary power consumption rate and a second back pressure after the thermal power unit switches to the target circulating pump operation quantity;

[0013] Obtaining a change in the auxiliary power consumption rate based on the first auxiliary power consumption rate and the second auxiliary power consumption rate;

[0014] Obtaining a target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure;

[0015] The target circulating pump operation quantity is corrected based on the target power supply coal consumption change.

[0016] Optionally, the step of obtaining a plurality of power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment based on the plurality of groups of steam turbine heat rates, boiler thermal efficiencies, and plant power rates includes:

[0017] Based on the heat consumption rate of each steam turbine and the thermal efficiency of the boiler, the coal consumption of the thermal power unit under the corresponding number of circulating pumps is obtained;

[0018] The power supply coal consumption of the thermal power unit under the corresponding number of circulating pump operations is obtained based on the power generation coal consumption and the corresponding plant power consumption rate.

[0019] Optionally, the step of obtaining a target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure includes:

[0020] Obtaining a first power supply coal consumption change based on the plant power consumption rate change and a preset power supply coal consumption;

[0021] Obtaining a second power supply coal consumption change based on the first back pressure, the second back pressure, and the preset power supply coal consumption;

[0022] A target power supply coal consumption change is obtained based on the first power supply coal consumption change and the second power supply coal consumption change.

[0023] Optionally, the step of correcting the target number of circulating pump operations based on the target power supply coal consumption change includes:

[0024] If the power supply coal consumption change is greater than zero, the first circulating pump operation quantity is used as the target circulating pump operation quantity.

[0025] Optionally, the real-time environmental data includes at least one of the following data: power generation power, water temperature, amount of different types of coal fed into the furnace, and current power generation power, feed water temperature and ambient temperature of the thermal power unit.

[0026] The present disclosure also provides a system for optimizing the number of circulating pumps, comprising:

[0027] A data acquisition module for acquiring historical parameter data and real-time environmental data, wherein the historical parameter data includes the turbine heat rate, boiler thermal efficiency, and plant power rate of the thermal power unit corresponding to different numbers of circulating pumps under different environments;

[0028] A data analysis module is used to obtain, based on the historical parameter data and real-time environmental data, several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates corresponding to different numbers of circulating pumps in operation under the current environment;

[0029] A power supply coal consumption acquisition module is used to obtain a plurality of power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment based on the plurality of groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates;

[0030] The quantity acquisition module is used to obtain the target circulating pump operation quantity under the current environment based on the several power supply coal consumptions corresponding to different circulating pump operation quantities.

[0031] Optionally, the circulation pump quantity optimization system further comprises:

[0032] Quantity correction module, used to:

[0033] When the current first circulating pump operation number of the thermal power generation unit is not equal to the target circulating pump operation number, obtaining the current first auxiliary power consumption rate and the first back pressure of the thermal power generation unit;

[0034] Obtaining a second auxiliary power consumption rate and a second back pressure after the thermal power unit switches to the target circulating pump operation quantity;

[0035] Obtaining a change in the auxiliary power consumption rate based on the first auxiliary power consumption rate and the second auxiliary power consumption rate;

[0036] Obtaining a target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure;

[0037] The target circulating pump operation quantity is corrected based on the target power supply coal consumption change.

[0038] Optionally, the power supply coal consumption acquisition module is further used to:

[0039] Based on the heat consumption rate of each steam turbine and the thermal efficiency of the boiler, the coal consumption of the thermal power unit under the corresponding number of circulating pumps is obtained;

[0040] The power supply coal consumption of the thermal power unit under the corresponding number of circulating pump operations is obtained based on the power generation coal consumption and the corresponding plant power consumption rate.

[0041] Optionally, the quantity correction module is further configured to:

[0042] Obtaining a first power supply coal consumption change based on the plant power consumption rate change and a preset power supply coal consumption;

[0043] Obtaining a second power supply coal consumption change based on the first back pressure, the second back pressure, and the preset power supply coal consumption;

[0044] A target power supply coal consumption change is obtained based on the first power supply coal consumption change and the second power supply coal consumption change.

[0045] The quantity correction module is also used for:

[0046] When the change in the power supply coal consumption is greater than zero, the first circulating pump operation quantity is used as the target circulating pump operation quantity.

[0047] Optionally, the real-time environmental data includes at least one of the following data: power generation power, water temperature, amount of different types of coal fed into the furnace, and current power generation power, feed water temperature and ambient temperature of the thermal power unit.

[0048] The present disclosure also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein the processor implements the aforementioned method for optimizing the number of circulating pumps when executing the computer program.

[0049] The present disclosure also provides a computer-readable storage medium having a computer program stored thereon, which implements the aforementioned method for optimizing the number of circulating pumps when the computer program is executed by a processor.

[0050] The present disclosure also provides a computer program product, including a computer program, which implements the aforementioned method for optimizing the number of circulating pumps when executed by a processor.

[0051] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0052] The positive progress effect of the present disclosure is that: based on historical parameter data and real-time environmental data, the turbine heat rate, boiler thermal efficiency and plant power consumption rate corresponding to different numbers of circulating pumps in the current environment are obtained, and before switching the number of circulating pumps, the power supply coal consumption under different numbers of circulating pumps is predicted based on the reverse balance calculation method. Compared with the positive balance calculation method, the optimal number of circulating pumps in the current environment can be calculated in real time, and it can be used as the target number of circulating pumps to improve power generation efficiency and reduce unit coal consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1A flowchart of a method for optimizing the number of circulating pumps provided in an exemplary embodiment of the present disclosure;

[0054] Figure 2 A schematic diagram of a module of a system for optimizing the number of circulating pumps provided by an exemplary embodiment of the present disclosure;

[0055] Figure 3 An electronic device is provided as an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0056] The present disclosure is further illustrated below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0057] Prefixes such as "first" and "second" are used in the embodiments of the present disclosure only to distinguish different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of prefixes such as ordinal numbers to distinguish descriptive objects in the embodiments of the present disclosure does not limit the described objects. For a description of the described objects, please refer to the contextual description in the claims or embodiments, and the use of such prefixes should not constitute unnecessary restrictions.

[0058] Example 1

[0059] Figure 1 A flowchart of a method for optimizing the number of circulating pumps provided in an exemplary embodiment of the present disclosure, the method comprising:

[0060] S1. Obtain historical parameter data and real-time environmental data. The historical parameter data includes the turbine heat rate, boiler thermal efficiency, and plant power consumption rate of the thermal power unit corresponding to different numbers of circulating pumps under different environments.

[0061] S2. Based on historical parameter data and real-time environmental data, several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates corresponding to different numbers of circulating pumps in operation under the current environment are obtained.

[0062] S3. Based on several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates, several power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment are obtained.

[0063] S4. Obtain the target number of circulating pump operations under the current environment based on several power supply coal consumptions corresponding to different numbers of circulating pump operations.

[0064] In an optional embodiment, step S3 further includes:

[0065] S31. Based on the heat consumption rate of each steam turbine group and the thermal efficiency of the boiler, the coal consumption of the thermal power unit under the corresponding number of circulating pumps in operation is obtained.

[0066] S32. Based on the power generation coal consumption and the corresponding plant power consumption rate, the power generation coal consumption of the thermal power unit under the corresponding number of circulating pump operations is obtained.

[0067] Specifically, the calculation formula of S31 is:

[0068]

[0069] in, For real-time coal consumption for power generation, is the real-time steam turbine heat rate, For real-time data time series, is the pipeline efficiency, is the boiler thermal efficiency, Standard coal and pipeline efficiency can be set according to practical conditions, for example, , the pipeline efficiency is .

[0070]

[0071] in, is the average power generation coal consumption. Therefore, in step S31, the power generation coal consumption obtained may be the average power generation coal consumption of the thermal power unit under the corresponding number of circulating pump operations.

[0072] The calculation formula for S32 is:

[0073]

[0074] in, To provide real-time power supply coal consumption, is the factory electricity consumption rate.

[0075]

[0076] in, Therefore, in step S32, the power supply coal consumption obtained may be the average power supply coal consumption of the thermal power unit under the corresponding number of circulating pump operations.

[0077] In an optional embodiment, the method for optimizing the number of circulating pumps further comprises:

[0078] S5. Determine whether the current number of first circulating pumps in operation of the thermal power unit is not equal to the target number of circulating pumps in operation. If so, execute step S6; if not, end the process.

[0079] S6. Obtain the current first power consumption rate and first back pressure of the thermal power unit.

[0080] S7. Obtain the second plant power consumption rate and the second back pressure after the thermal power unit switches to the target circulating pump operation quantity.

[0081] S8. Obtain a change in the plant power consumption rate based on the first plant power consumption rate and the second plant power consumption rate.

[0082] S9. Obtain a target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure.

[0083] S10. Correct the target circulating pump operation quantity based on the target power supply coal consumption change.

[0084] The above method can be used to verify whether the target circulating pump operation number is reasonable. If the power supply coal consumption increases, it means that the effect of the target circulating pump operation number is not as good as the first circulating pump operation number. Therefore, corrections can be made, for example, adjusting the circulating pump operation number to be close to the first circulating pump operation number.

[0085] In an optional embodiment, step S9 further includes:

[0086] S91. Obtain a first power supply coal consumption change based on the plant power consumption rate change and the preset power supply coal consumption.

[0087] S92. Obtain a second power supply coal consumption change based on the first back pressure, the second back pressure, and the preset power supply coal consumption.

[0088] S93. Obtain a target power supply coal consumption change based on the first power supply coal consumption change and the second power supply coal consumption change.

[0089] Specifically, the calculation formula of step S91 is:

[0090]

[0091] in: is the change in coal consumption of the first power supply, is the change in plant power consumption rate, The preset power supply coal consumption, that is, the power supply coal consumption of the unit, can be set according to the practical characteristics of the unit, for example, set to 300g / kwh.

[0092] When calculating the second power supply coal consumption change in step S92, the influence of the back pressure correction curve on the power supply coal consumption needs to be considered. Since the back pressure correction curve corresponds to different functions when the back pressure is in different ranges, it is necessary to solve them separately according to the ranges of the first back pressure and the second back pressure to obtain two different , and then calculated by the second back pressure Subtract the value calculated by the first backpressure The change in coal consumption of the second power supply can be obtained .

[0093] When the first back pressure or the second back pressure hour,

[0094]

[0095]

[0096] When the first back pressure or the second back pressure hour,

[0097]

[0098]

[0099] Among them, k is the back pressure correction curve of the unit. The specific calculation function of k can be set according to practical conditions. The above function is only an optional example provided by this disclosure.

[0100] In an optional embodiment, step S10 further includes:

[0101] S11. If the change in power supply coal consumption is greater than zero, the first circulating pump operation quantity is used as the target circulating pump operation quantity.

[0102] In an optional embodiment, the real-time environmental data includes at least one of the following data: power generation power, water temperature, the amount of different types of coal fed into the furnace, and the current power generation power, feed water temperature and ambient temperature of the thermal power unit.

[0103] The present invention obtains the turbine heat rate, boiler thermal efficiency and plant power consumption rate corresponding to different numbers of circulating pumps in the current environment based on historical parameter data and real-time environmental data, and predicts the power supply coal consumption under different numbers of circulating pumps in operation based on the reverse balance calculation method before switching the number of circulating pumps. Compared with the positive balance calculation method, the optimal number of circulating pumps in the current environment can be calculated in real time, and it can be used as the target number of circulating pumps in operation to improve power generation efficiency and reduce unit coal consumption.

[0104] Example 2

[0105] Corresponding to the aforementioned embodiment of the method for optimizing the number of circulating pumps, the present disclosure also provides an embodiment of a system for optimizing the number of circulating pumps.

[0106] Figure 2 A schematic diagram of a system for optimizing the number of circulating pumps provided in accordance with an exemplary embodiment of the present disclosure is provided. The system comprises:

[0107] The data acquisition module 1 is used to acquire historical parameter data and real-time environmental data. The historical parameter data includes the turbine heat rate, boiler thermal efficiency and plant power rate of the thermal power unit corresponding to different numbers of circulating pumps under different environments.

[0108] The data analysis module 2 is used to obtain several groups of steam turbine heat consumption rates, boiler thermal efficiencies and plant power consumption rates corresponding to different numbers of circulating pumps in the current environment based on historical parameter data and real-time environmental data.

[0109] The power supply coal consumption acquisition module 3 is used to obtain several power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment based on several groups of steam turbine heat consumption rates, boiler thermal efficiencies and plant power consumption rates.

[0110] The quantity acquisition module 4 is used to obtain the target circulating pump operation quantity under the current environment based on a number of power supply coal consumptions corresponding to different circulating pump operation quantities.

[0111] In an optional implementation scheme, the power supply coal consumption acquisition module is further used to:

[0112] Based on the heat consumption rate of each steam turbine and the thermal efficiency of the boiler, the power generation coal consumption of the thermal power unit under the corresponding number of circulating pumps in operation is obtained; based on the power generation coal consumption and the corresponding plant power consumption rate, the power supply coal consumption of the thermal power unit under the corresponding number of circulating pumps in operation is obtained.

[0113] Specifically, the calculation formula for power generation coal consumption is:

[0114]

[0115] in, For real-time coal consumption for power generation, is the real-time steam turbine heat rate, For real-time data time series, is the pipeline efficiency, is the boiler thermal efficiency, Standard coal and pipeline efficiency can be set according to practical conditions, for example, , the pipeline efficiency is .

[0116]

[0117] in, is the average power generation coal consumption. Therefore, the power generation coal consumption obtained by the power supply coal consumption acquisition module can be the average power generation coal consumption of the thermal power unit under the corresponding number of circulating pump operations.

[0118] The calculation formula for power supply coal consumption is:

[0119]

[0120] in, To provide real-time power supply coal consumption, is the factory electricity consumption rate.

[0121]

[0122] in, Therefore, the power supply coal consumption obtained by the power supply coal consumption acquisition module can be the average power supply coal consumption of the thermal power unit under the corresponding number of circulating pump operations.

[0123] In an optional embodiment, the system for optimizing the number of circulating pumps further comprises:

[0124] Quantity correction module, used to:

[0125] Determine whether the current first circulating pump operation quantity of the thermal power unit is not equal to the target circulating pump operation quantity. If so, obtain the current first plant power consumption rate and first back pressure of the thermal power unit; obtain the second plant power consumption rate and second back pressure after the thermal power unit switches to the target circulating pump operation quantity; obtain the plant power consumption rate change based on the first plant power consumption rate and the second plant power consumption rate; obtain the target power supply coal consumption change based on the plant power consumption rate change, the first back pressure and the second back pressure; and correct the target circulating pump operation quantity based on the target power supply coal consumption change.

[0126] The quantity correction module can be used to verify whether the target circulating pump operation quantity is reasonable. If the power supply coal consumption increases, it means that the effect of the target circulating pump operation quantity is not as good as the first circulating pump operation quantity. Therefore, corrections can be made, for example, adjusting the circulating pump operation quantity to be close to the first circulating pump operation quantity.

[0127] In an optional embodiment, the quantity correction module is further configured to:

[0128] The first power supply coal consumption change is obtained based on the change in plant power consumption rate and the preset power supply coal consumption; the second power supply coal consumption change is obtained based on the first back pressure, the second back pressure and the preset power supply coal consumption; the target power supply coal consumption change is obtained based on the first power supply coal consumption change and the second power supply coal consumption change.

[0129] Specifically, the calculation formula for the change in coal consumption for the first power supply is:

[0130]

[0131] in: is the change in coal consumption of the first power supply, is the change in plant power consumption rate, The preset power supply coal consumption, that is, the power supply coal consumption of the unit, can be set according to the practical characteristics of the unit, for example, set to 300g / kwh.

[0132] When calculating the change in the second power supply coal consumption, it is necessary to consider the impact of the back pressure correction curve on the power supply coal consumption. Since the back pressure correction curve corresponds to different functions when the back pressure is in different ranges, it is necessary to solve them separately according to the ranges of the first back pressure and the second back pressure to obtain two different , and then calculated by the second back pressure Subtract the value calculated by the first backpressure The change in coal consumption of the second power supply can be obtained .

[0133] When the first back pressure or the second back pressure hour,

[0134]

[0135]

[0136] When the first back pressure or the second back pressure hour,

[0137]

[0138]

[0139] Wherein, k is the back pressure correction curve of the unit, and the specific calculation function of k can be set according to practical conditions. The above function is only an optional example provided in the present disclosure.

[0140] In an optional embodiment, the quantity correction module is further configured to:

[0141] If the change in power supply coal consumption is greater than zero, the first circulating pump operation quantity is used as the target circulating pump operation quantity.

[0142] In an optional embodiment, the real-time environmental data includes at least one of the following data: power generation power, water temperature, the amount of different types of coal fed into the furnace, and the current power generation power, feed water temperature and ambient temperature of the thermal power unit.

[0143] The present invention obtains the turbine heat rate, boiler thermal efficiency and plant power consumption rate corresponding to different numbers of circulating pumps in the current environment based on historical parameter data and real-time environmental data, and predicts the power supply coal consumption under different numbers of circulating pumps in operation based on the reverse balance calculation method before switching the number of circulating pumps. Compared with the positive balance calculation method, the optimal number of circulating pumps in the current environment can be calculated in real time, and it can be used as the target number of circulating pumps in operation to improve power generation efficiency and reduce unit coal consumption.

[0144] Since the system embodiments generally correspond to the method embodiments, reference will be made to the description of the method embodiments for relevant details. The system embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components of the units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the disclosed solution.

[0145] Example 3

[0146] Figure 3 This is a structural diagram of an electronic device showing an example embodiment of the present disclosure, wherein the electronic device includes a memory, a processor, and a computer program stored in the memory and for running on the processor, and when the processor executes the computer program, the method for optimizing the number of circulating pumps described in any of the above embodiments is implemented. Figure 3 The electronic device 90 shown is only an example and should not limit the functionality and scope of use of the embodiments of the present disclosure.

[0147] like Figure 3 As shown, the electronic device 90 may be a general-purpose computing device, such as a server device. Components of the electronic device 90 may include, but are not limited to, the at least one processor 91, the at least one memory 92, and a bus 93 connecting different system components (including the memory 92 and the processor 91).

[0148] The bus 93 includes a data bus, an address bus, and a control bus.

[0149] The memory 92 may include a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further include a read-only memory (ROM) 923 .

[0150] The memory 92 may also include a program tool 925 (or utility) having a set (at least one) of program modules 924, such program modules 924 including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include an implementation of a network environment.

[0151] The processor 91 executes various functional applications and data processing by running the computer programs stored in the memory 92, such as the method for optimizing the number of circulating pumps provided in any of the above embodiments.

[0152] The electronic device 90 can also communicate with one or more external devices 94 (e.g., a keyboard, pointing device, etc.). This communication can occur via an input / output (I / O) interface 95. Furthermore, the electronic device 90 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 96. As shown, the network adapter 96 communicates with other modules of the electronic device 90 via a bus 93. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 90, including but not limited to microcode, device drivers, redundant processors, external disk drive arrays, RAID (RAID) systems, tape drives, and data backup storage systems.

[0153] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0154] Example 4

[0155] An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for optimizing the number of circulating pumps provided in any of the above embodiments.

[0156] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0157] Example 5

[0158] An embodiment of the present disclosure further provides a computer program product, comprising a computer program, which implements any of the above-mentioned methods for optimizing the number of circulating pumps when executed by a processor.

[0159] The program code for executing the computer program product of the present disclosure may be written in any combination of one or more programming languages, and the program code may be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0160] While specific embodiments of the present disclosure have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, and such changes and modifications are intended to fall within the scope of protection of the present disclosure.

Claims

1. A method for optimizing the number of circulating pumps, characterized in that: include: Acquiring historical parameter data and real-time environmental data, wherein the historical parameter data includes the turbine heat rate, boiler thermal efficiency, and plant power rate of the thermal power unit corresponding to different numbers of circulating pumps in different environments; Based on the historical parameter data and the real-time environmental data, several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates corresponding to different numbers of circulating pumps in operation under the current environment are obtained; Based on the several groups of steam turbine heat consumption rates, boiler thermal efficiencies and plant power consumption rates, several power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment are obtained; The target circulating pump operation quantity under the current environment is obtained based on the several power supply coal consumptions corresponding to different circulating pump operation quantities.

2. The method for optimizing the number of circulating pumps according to claim 1, wherein: The method for optimizing the number of circulating pumps further comprises: If the current first circulating pump operation quantity of the thermal power generation unit is not equal to the target circulating pump operation quantity, obtaining the current first auxiliary power consumption rate and first back pressure of the thermal power generation unit; Obtaining a second auxiliary power consumption rate and a second back pressure after the thermal power unit switches to the target circulating pump operation quantity; Obtaining a change in the auxiliary power consumption rate based on the first auxiliary power consumption rate and the second auxiliary power consumption rate; Obtaining a target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure; The target circulating pump operation quantity is corrected based on the target power supply coal consumption change.

3. The method for optimizing the number of circulating pumps according to claim 1, wherein: The step of obtaining a plurality of power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment based on the plurality of groups of steam turbine heat rates, boiler thermal efficiencies, and plant power rates comprises: Based on the heat consumption rate of each steam turbine and the thermal efficiency of the boiler, the coal consumption of the thermal power unit under the corresponding number of circulating pumps is obtained; The power supply coal consumption of the thermal power unit under the corresponding number of circulating pump operations is obtained based on the power generation coal consumption and the corresponding plant power consumption rate.

4. The method for optimizing the number of circulating pumps according to claim 2, wherein: The step of obtaining the target power supply coal consumption change based on the plant power consumption rate change, the first back pressure, and the second back pressure includes: Obtaining a first power supply coal consumption change based on the plant power consumption rate change and a preset power supply coal consumption; Obtaining a second power supply coal consumption change based on the first back pressure, the second back pressure, and the preset power supply coal consumption; A target power supply coal consumption change is obtained based on the first power supply coal consumption change and the second power supply coal consumption change.

5. The method for optimizing the number of circulating pumps according to claim 2, wherein: The step of correcting the target number of circulating pump operations based on the target power supply coal consumption change includes: If the power supply coal consumption change is greater than zero, the first circulating pump operation quantity is used as the target circulating pump operation quantity.

6. The method for optimizing the number of circulating pumps according to any one of claims 1 to 5, characterized in that: The real-time environmental data includes at least one of the following data: power generation power, water temperature, amount of different types of coal fed into the furnace, and current power generation power, feed water temperature, and ambient temperature of the thermal power unit.

7. A system for optimizing the number of circulating pumps, characterized in that: include: A data acquisition module for acquiring historical parameter data and real-time environmental data, wherein the historical parameter data includes the turbine heat rate, boiler thermal efficiency, and plant power rate of the thermal power unit corresponding to different numbers of circulating pumps under different environments; A data analysis module is used to obtain, based on the historical parameter data and real-time environmental data, several groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates corresponding to different numbers of circulating pumps in operation under the current environment; A power supply coal consumption acquisition module is used to obtain a plurality of power supply coal consumptions corresponding to different numbers of circulating pump operations under the current environment based on the plurality of groups of steam turbine heat consumption rates, boiler thermal efficiencies, and plant power consumption rates; The quantity acquisition module is used to obtain the target circulating pump operation quantity under the current environment based on the several power supply coal consumptions corresponding to different circulating pump operation quantities.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein: When the processor executes the computer program, the method for optimizing the number of circulating pumps according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for optimizing the number of circulating pumps according to any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for optimizing the number of circulating pumps according to any one of claims 1 to 6 is implemented.

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