CN109740235B - Method and device for determining coal saving amount of coal-fired boiler, readable medium and electronic equipment - Google Patents
Method and device for determining coal saving amount of coal-fired boiler, readable medium and electronic equipment Download PDFInfo
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- CN109740235B CN109740235B CN201811619064.4A CN201811619064A CN109740235B CN 109740235 B CN109740235 B CN 109740235B CN 201811619064 A CN201811619064 A CN 201811619064A CN 109740235 B CN109740235 B CN 109740235B
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Abstract
The invention discloses a method, a device, a readable medium and electronic equipment for determining coal saving amount of a coal-fired boiler, wherein the method comprises the following steps: pre-establishing a coal saving quantity prediction model of the coal-fired boiler; acquiring operation data before the coal-fired boiler is modified; acquiring operation data of the coal-fired boiler after modification; and substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model to determine the coal saving quantity of the coal-fired boiler. The technical scheme provided by the invention can more accurately calculate the coal saving amount after the coal-fired boiler is modified, so that whether the aim of saving energy is achieved by modifying the coal-fired boiler can be more accurately judged, and the method has guiding significance for the subsequent modification of the coal-fired boiler.
Description
Technical Field
The invention relates to the field of energy, in particular to a method, a device, a readable medium and electronic equipment for determining coal saving amount of a coal-fired boiler.
Background
Along with the increasingly prominent of environmental problems, the improvement of the existing equipment, the reduction of the energy consumption of the existing equipment and the improvement of the efficiency of the existing equipment become important means for relieving the environmental problems, wherein the improvement of the coal-fired boiler is an important part in the improvement of the existing equipment.
The aim is that after the existing coal-fired boiler is modified, the coal saving amount after the coal-fired boiler is modified can be generally judged only by experience, and whether the energy saving purpose is achieved by modifying the coal-fired boiler can not be accurately judged.
Disclosure of Invention
The invention provides a method, a device, a readable medium and electronic equipment for determining coal saving quantity of a coal-fired boiler, which can calculate the coal saving quantity of the coal-fired boiler after being modified more accurately, thereby more accurately judging whether the modification of the coal-fired boiler achieves the purpose of energy saving, and having guiding significance for the subsequent modification of the coal-fired boiler.
In a first aspect, the present invention provides a method for determining coal saving of a coal-fired boiler, comprising:
pre-establishing a coal saving quantity prediction model of the coal-fired boiler;
acquiring operation data before the coal-fired boiler is modified;
acquiring operation data of the coal-fired boiler after modification;
and substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model to determine the coal saving quantity of the coal-fired boiler.
Preferably, the first and second electrodes are formed of a metal,
the operational data includes: steam turbine energy consumption, boiler efficiency, pipeline efficiency and plant power rate.
Preferably, the first and second electrodes are formed of a metal,
the coal saving amount prediction model comprises:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to boiler efficiency before modification, epsilon g1 Corresponding to the efficiency of the improved boiler, epsilon d0 Corresponding to the efficiency of the pipeline before modification, epsilon d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the service power rate before modification, epsilon yd1 Corresponding to the improved plant power rate.
In a second aspect, the present invention provides an apparatus for determining coal saving of a coal-fired boiler, comprising:
the modeling processing module is used for establishing a coal saving amount prediction model of the coal-fired boiler in advance;
the first acquisition module is used for acquiring operation data before the coal-fired boiler is modified;
the second acquisition module is used for acquiring the operation data of the coal-fired boiler after the coal-fired boiler is modified;
and the determining and processing module is used for substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model so as to determine the coal saving quantity of the coal-fired boiler.
Preferably, the first and second electrodes are formed of a metal,
the first acquisition module is used for acquiring the energy consumption of a steam turbine, the boiler efficiency, the pipeline efficiency and the plant power rate before the coal-fired boiler is modified;
and the second acquisition module is used for acquiring the steam turbine energy consumption, the boiler efficiency, the pipeline efficiency and the plant power consumption rate after the coal-fired boiler is modified.
Preferably, the first and second electrodes are formed of a metal,
the modeling processing module is used for establishing a coal saving amount prediction model of the following coal-fired boiler in advance:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to boiler efficiency before modification, epsilon g1 E corresponding to the efficiency of the improved boiler d0 Corresponding to the efficiency of the pipeline before modification, epsilon d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the plant power rate before modification yd1 Corresponding to the improved plant power rate.
In a third aspect, the invention provides a readable medium comprising executable instructions, which when executed by a processor of an electronic device, perform the method according to any of the first aspect.
In a fourth aspect, the present invention provides an electronic device, including a processor and a memory storing execution instructions, wherein when the processor executes the execution instructions stored in the memory, the processor performs the method according to any one of the first aspect.
The invention provides a method, a device, a readable medium and electronic equipment for determining coal saving quantity of a coal-fired boiler, wherein the method comprises the steps of obtaining operation data before the coal-fired boiler is modified to know the operation state of the coal-fired boiler before the modification by pre-establishing a coal saving quantity prediction model of the coal-fired boiler, obtaining operation data after the coal-fired boiler is modified to know the operation state of the coal-fired boiler after the modification, and substituting the operation data before the modification and the operation data after the modification into the coal saving quantity prediction model to more accurately calculate the coal saving quantity of the coal-fired boiler, so that whether the modification of the coal-fired boiler achieves the purpose of energy saving can be more accurately judged, and the method has guiding significance for the subsequent modification of the coal-fired boiler.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for determining coal saving of a coal-fired boiler according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an apparatus for determining coal saving of a coal-fired boiler according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
As shown in fig. 1, an embodiment of the present invention provides a method for determining coal saving of a coal-fired boiler, where the method includes:
101, pre-establishing a coal saving quantity prediction model of a coal-fired boiler;
102, acquiring operation data before coal-fired boiler transformation;
103, acquiring operation data of the coal-fired boiler after modification;
and 104, substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model to determine the coal saving quantity of the coal-fired boiler.
The method for determining the coal saving amount of the coal-fired boiler as shown in fig. 1 includes the steps of obtaining operation data before modification of the coal-fired boiler to know the operation state of the coal-fired boiler before modification by establishing a coal saving amount prediction model of the coal-fired boiler in advance, obtaining operation data after modification of the coal-fired boiler to know the operation state of the coal-fired boiler after modification, and substituting the operation data before modification and the operation data after modification into the coal saving amount prediction model to obtain the coal saving amount of the coal-fired boiler more accurately, so that whether the coal-fired boiler is modified to achieve the purpose of saving energy or not can be judged more accurately, and the method has guiding significance for subsequent modification of the coal-fired boiler.
In an embodiment of the present invention, the operation data includes: steam turbine energy consumption, boiler efficiency, pipeline efficiency and plant power rate.
In the above embodiment, the operation data includes steam turbine energy consumption, boiler efficiency, pipeline efficiency and station service power consumption rate, then acquires the operation data around the coal fired boiler reforms transform, acquires steam turbine energy consumption, boiler efficiency, pipeline efficiency and station service power consumption rate before the coal fired boiler reforms transform promptly, and then knows the running state before the coal fired boiler reforms transform to acquire steam turbine energy consumption, boiler efficiency, pipeline efficiency and station service power consumption rate after the gas fired boiler reforms transform, and then knows the running state that the coal fired boiler reforms transform.
Specifically, the running data is collected through a sensor, and the steady-state average value of each parameter of the running data is taken to ensure the accuracy of the obtained running data, so that the accuracy of the coal saving quantity of the coal-fired boiler calculated by using the running data is higher; the mode of installing the economizer at the lower part of coal fired boiler's afterbody flue is usually adopted in reforming transform coal fired boiler, and the economizer is used for retrieving the waste heat that coal fired boiler discharged fume, recycles the waste heat in order to reach energy-conserving purpose, and under the general condition, after the installation economizer, boiler efficiency can promote, and pipeline efficiency can reduce, and the station service rate of power consumption can increase.
In the above embodiment, the coal saving amount prediction model includes:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to the boiler efficiency before modification g1 Corresponding to the efficiency of the improved boiler, epsilon d0 Corresponding to the efficiency of the pipeline before modification, epsilon d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the plant power rate before modification yd1 Corresponding to the improved plant power rate.
In the embodiment, the turbine thermal equilibrium diagram method is adopted, and the first law of thermodynamics and the second law of thermodynamics are comprehensively considered, so that the coal saving prediction model can be obtained. Concretely, substituting the obtained steam turbine energy consumption before the coal-fired boiler is transformed into q 0 In the method, the obtained boiler efficiency before the coal-fired boiler is transformed is substituted into epsilon g0 In the method, the obtained pipeline efficiency before the coal-fired boiler is transformed is substituted into epsilon d0 In the method, the obtained plant power rate before the coal-fired boiler is transformed is substituted into epsilon yd0 In the method, the obtained energy consumption of the steam turbine after the coal-fired boiler is transformed is substituted into q 1 In the method, the obtained boiler efficiency after the coal-fired boiler is transformed is substituted into epsilon g1 In the method, the obtained pipeline efficiency after the coal-fired boiler is transformed is substituted into epsilon d1 Substituting the obtained service power rate after the coal-fired boiler is modified into epsilon yd1 In addition, the coal saving amount of the coal-fired boiler can be calculated, and the calculated value of the coal saving amount is accurate.
Based on the same inventive concept as the method, as shown in fig. 2, an embodiment of the present invention provides an apparatus for determining coal saving amount of a coal-fired boiler, including:
a modeling processing module 201, configured to pre-establish a coal saving prediction model of the coal-fired boiler;
a first obtaining module 202, configured to obtain operation data before coal-fired boiler modification;
the second obtaining module 203 is used for obtaining the operation data of the coal-fired boiler after being modified;
and the determining and processing module 204 is configured to substitute the operation data before the modification and the operation data after the modification into the coal saving amount prediction model to determine the coal saving amount of the coal-fired boiler.
In an embodiment of the present invention, the first obtaining module 202 is configured to obtain energy consumption of a steam turbine, boiler efficiency, pipeline efficiency, and plant power consumption rate before modification of a coal-fired boiler;
and the second obtaining module 203 is used for obtaining the steam turbine energy consumption, the boiler efficiency, the pipeline efficiency and the plant power consumption rate after the coal-fired boiler is transformed.
In an embodiment of the present invention, the modeling processing module 201 is configured to pre-establish a coal saving prediction model of a coal-fired boiler as follows:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to the boiler efficiency before modification g1 Corresponding to the efficiency of the improved boiler, epsilon d0 Corresponding to the efficiency of the pipeline before modification, epsilon d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the plant power rate before modification yd1 Corresponding to the improved plant power rate.
For convenience of description, the above embodiments of the apparatus are described as functionally separated into various units or modules, and the functions of the units or modules may be implemented in one or more of software and/or hardware in implementing the present invention.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. On the hardware level, the electronic device comprises a processor and optionally an internal bus, a network interface and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services.
The processor, the network interface, and the memory may be connected to each other via an internal bus, which may be an ISA (Industry standard architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry standard architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 3, but this does not indicate only one bus or one type of bus.
And the memory is used for storing the execution instruction. In particular, a computer program that can be executed by executing instructions. The memory may include both memory and non-volatile storage and provides execution instructions and data to the processor.
In a possible implementation mode, the processor reads the corresponding execution instruction from the nonvolatile memory to the memory and then runs the corresponding execution instruction, and the corresponding execution instruction can also be obtained from other equipment so as to form a device for determining the coal saving amount of the coal-fired boiler on a logic level. The processor executes the execution instructions stored in the memory to realize the method for determining the coal saving amount of the coal-fired boiler provided by any embodiment of the invention through the executed execution instructions.
The method for determining coal saving of a coal-fired boiler according to the embodiment of the invention shown in FIG. 2 can be implemented in or by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also 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. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
The embodiment of the invention also provides a readable storage medium, wherein the readable storage medium stores execution instructions, and the stored execution instructions can be executed by a processor of the electronic equipment to enable the electronic equipment to execute the method for determining coal saving quantity of the coal-fired boiler provided by any embodiment of the invention, and are specifically used for executing the method shown in FIG. 1.
The electronic device described in the foregoing embodiments may be a computer.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. A method for determining coal saving quantity of a coal-fired boiler is characterized by comprising the following steps:
pre-establishing a coal saving quantity prediction model of the coal-fired boiler;
acquiring operation data before the coal-fired boiler is modified;
acquiring operation data of the coal-fired boiler after modification;
substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model to determine the coal saving quantity of the coal-fired boiler;
the operational data includes: steam turbine energy consumption, boiler efficiency, pipeline efficiency and plant power rate;
the coal saving amount prediction model comprises:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to boiler efficiency before modification, epsilon g1 Corresponding to the efficiency of the improved boiler, epsilon d0 And the pipe before modificationE corresponding to track efficiency d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the service power rate before modification, epsilon yd1 Corresponding to the plant power rate after transformation.
2. An apparatus for determining coal saving capacity of a coal-fired boiler, comprising:
the modeling processing module is used for establishing a coal saving amount prediction model of the coal-fired boiler in advance;
the first acquisition module is used for acquiring operation data before the coal-fired boiler is modified;
the second acquisition module is used for acquiring the operation data of the coal-fired boiler after the coal-fired boiler is modified;
the determining and processing module is used for substituting the operation data before modification and the operation data after modification into the coal saving quantity prediction model so as to determine the coal saving quantity of the coal-fired boiler;
the first acquisition module is used for acquiring the energy consumption of a steam turbine, the boiler efficiency, the pipeline efficiency and the plant power rate before the coal-fired boiler is modified;
the second acquisition module is used for acquiring the steam turbine energy consumption, the boiler efficiency, the pipeline efficiency and the plant power consumption rate after the coal-fired boiler is modified;
the modeling processing module is used for establishing a coal saving amount prediction model of the following coal-fired boiler in advance:
wherein Δ m represents the coal saving amount, q 0 Corresponding to the energy consumption of the steam turbine before modification, q 1 Corresponding to the energy consumption of the steam turbine after transformation, epsilon g0 Corresponding to boiler efficiency before modification, epsilon g1 E corresponding to the efficiency of the improved boiler d0 Corresponding to the efficiency of the pipeline before modification, epsilon d1 Corresponding to the efficiency of the modified pipeline, epsilon yd0 Corresponding to the plant power rate before modification yd1 Corresponding to the improved plant power rate.
3. A readable medium comprising executable instructions that, when executed by a processor of an electronic device, cause the electronic device to perform the method of claim 1.
4. An electronic device comprising a processor and a memory storing execution instructions, the processor performing the method of claim 1 when the processor executes the execution instructions stored by the memory.
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| CN112418527B (en) * | 2020-11-24 | 2023-04-07 | 西安热工研究院有限公司 | Optimal coal blending ratio calculation and judgment method based on boiler side index and fuel price |
| CN112907125A (en) * | 2021-03-22 | 2021-06-04 | 新奥数能科技有限公司 | Benefit evaluation method and device for energy-saving project of industrial boiler and electronic equipment |
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| CN104089435A (en) * | 2014-07-01 | 2014-10-08 | 国家电网公司 | Energy saving amount determination method for recycling waste heat of circulating cooling water by means of heat pump |
| CN105138855A (en) * | 2015-09-21 | 2015-12-09 | 华北电力科学研究院有限责任公司 | Method and device for calculating influences of coal quality deviation on coal-fired generator set coal consumption |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2369433A1 (en) * | 2010-03-24 | 2011-09-28 | ABB Research Ltd. | Computer-based method and device for automatically providing control parameters for a plurality of coal mills supplying coal powder to a plant |
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| CN101383589A (en) * | 2008-01-30 | 2009-03-11 | 辽宁赛沃斯节能技术有限公司 | High voltage frequency converting speed regulating system having remote monitoring and saved energy metering |
| CN104089435A (en) * | 2014-07-01 | 2014-10-08 | 国家电网公司 | Energy saving amount determination method for recycling waste heat of circulating cooling water by means of heat pump |
| CN105138855A (en) * | 2015-09-21 | 2015-12-09 | 华北电力科学研究院有限责任公司 | Method and device for calculating influences of coal quality deviation on coal-fired generator set coal consumption |
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