CN110889533B - Metallurgical gas furnace kiln energy efficiency evaluation analysis method and device - Google Patents
Metallurgical gas furnace kiln energy efficiency evaluation analysis method and device Download PDFInfo
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Abstract
The embodiment of the invention provides a metallurgical gas furnace kiln energy efficiency evaluation analysis method and equipment. The method comprises the following steps: constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library; calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from a furnace kiln basic database and a common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct; according to the furnace type specification in the basic database of the metallurgical gas furnace, the average index and the advanced index in the energy efficiency evaluation and optimization standard library are screened, and energy efficiency optimization measures are made. The metallurgical gas furnace kiln energy efficiency evaluation analysis method and the device provided by the embodiment of the invention can quickly diagnose and evaluate the energy efficiency level of various gas furnaces.
Description
Technical Field
The embodiment of the invention relates to the technical field of metallurgy, in particular to a metallurgical gas furnace kiln energy efficiency evaluation analysis method and device.
Background
In the production process of iron and steel enterprises, the energy consumption of gas furnaces represented by gas combustion occupies a large proportion, and is one of the key points of energy conservation and consumption reduction. The improvement of kiln energy-saving and consumption-reducing equipment and the implementation of technical means need to rely on kiln energy efficiency analysis (thermal balance test). In the process of energy efficiency analysis and calculation, even under the condition of complete drawing data, the change of one parameter needs to be repeatedly calculated once, the consumed labor amount is large, one energy efficiency analysis report generally needs to be subjected to data adjustment for many times, the time of several days or even dozens of days is required by adopting conventional 'manual' calculation, and the error probability of results is increased due to large data volume and many table look-up parameters. The current technology related to the evaluation and analysis of the energy efficiency of the furnace kiln has no universality and universality in general. Therefore, a basic database of the metallurgical gas furnace kiln is established and perfected, a professional metallurgical gas furnace kiln energy efficiency evaluation and intelligent analysis and diagnosis system which meets the latest national test standard is developed, the system functions of process test key data input, automatic calculation and intelligent analysis are realized, a standard text report is quickly and accurately formed, the manual calculation intensity is reduced, the furnace energy efficiency condition is accurately mastered, a robust gas furnace kiln energy efficiency account is quickly established, the optimization and improvement of an energy-saving and consumption-reducing scheme of the gas furnace kiln are facilitated, and the technical problem which is widely concerned in the industry is solved.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a metallurgical gas furnace kiln energy efficiency evaluation analysis method and device.
In a first aspect, an embodiment of the present invention provides a metallurgical gas furnace kiln energy efficiency evaluation analysis method, including: constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library; calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from the furnace kiln basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct; and according to the furnace type specification in the basic database of the metallurgical gas furnace, screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library, and making an energy efficiency optimization measure.
Further, on the basis of the content of the above method embodiment, the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln provided in the embodiment of the present invention, wherein if the criterion value is within the preset threshold range, the calculation result is correct, and the method includes: and subtracting the heat balance income item from the heat balance expenditure item, dividing the difference value by the heat balance income item to obtain the judgment basis value, and if the judgment basis value is less than or equal to +/-5%, the calculation result is correct.
Further, on the basis of the content of the embodiment of the method, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided by the embodiment of the invention comprises the following steps of screening average indexes and advanced indexes in the energy efficiency evaluation and optimization standard library to make energy efficiency optimization measures, wherein the method comprises the following steps: and screening the process parameters and the equipment parameters of the average index and the advanced index, and making energy efficiency optimization measures according to screening results.
Further, on the basis of the content of the above method embodiment, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided in the embodiment of the present invention includes: design data and operational data; the design data comprises overhaul data of the metallurgical gas furnace kiln, which is used for calculating the external surface area of the metallurgical gas furnace kiln and the external surface area of the accessory facilities of the metallurgical gas furnace kiln; the operation data comprises annual monthly output and fuel quantity of the metallurgical gas furnace kiln and is used for judging the overall operation condition of the metallurgical gas furnace kiln.
Further, on the basis of the content of the above method embodiment, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided in the embodiment of the present invention includes that the common material physical property database includes: and water, saturated or supersaturated steam, specific heat capacity of each component of flue gas, specific heat capacity and enthalpy of each component of coal gas, specific heat, thermogravimetry and heat conductivity coefficient of each steel type in the heat balance calculation process.
Further, on the basis of the content of the above method embodiment, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided in the embodiment of the present invention includes the following steps: data input and judgment, income item calculation, expenditure item calculation and calculation result judgment; selecting input items and output items according to the specific type of the kiln by the heat balance calculation; the heat balance calculation is finished by editing a Matlab GUI interface, and comprises an initial setting interface, a calculation condition preview interface and a calculation result interface, wherein the calculation result interface comprises calculation conditions, a heat balance income item and a payment item.
Further, on the basis of the content of the above method embodiment, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided in the embodiment of the present invention further includes: and setting system authority for preventing effective data from being deleted accidentally or recording improper data into the basic database and/or the physical property database of the common substances of the metallurgical gas furnace.
In a second aspect, an embodiment of the present invention provides an energy efficiency evaluation and analysis device for a metallurgical gas furnace, including:
the database construction module is used for constructing a basic database of the metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard database;
the judging module is used for calling in test data required by heat balance calculation, eliminating unqualified data according to a test data rule, calling calculation data from the furnace basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judging basis value is within a preset threshold value range, the calculation result is correct;
and the energy efficiency optimization measure making module is used for screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library according to the furnace type specification in the metallurgical gas furnace kiln basic database, and making energy efficiency optimization measures.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions which can be executed by the processor, and the processor calls the program instructions to execute the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided by any one of the various possible implementation manners of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln, provided in any one of the various possible implementations of the first aspect.
According to the metallurgical gas furnace kiln energy efficiency evaluation analysis method and the device, various databases are constructed in the early stage, the heat balance calculation result is evaluated, and efficiency optimization measures are further formulated on the basis, so that the energy efficiency levels of various gas furnaces can be rapidly diagnosed and evaluated, optimization reference measures are provided for device improvement, and the economic benefits of saving energy, reducing consumption and reducing cost are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below to the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of an energy efficiency evaluation analysis method for a metallurgical gas furnace kiln according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an energy efficiency evaluation and analysis device for a metallurgical gas furnace kiln according to an embodiment of the invention;
fig. 3 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, technical features of various embodiments or individual embodiments provided by the invention can be arbitrarily combined with each other to form a feasible technical solution, but must be realized by a person skilled in the art, and when the technical solution combination is contradictory or cannot be realized, the technical solution combination is not considered to exist and is not within the protection scope of the present invention. The metallurgical gas furnace mainly uses one or more mixed gases of blast furnace gas, converter gas and coke oven gas as fuel, and the furnace types include steel rolling heating furnace, heat treatment furnace, blast furnace hot blast stove, gas boiler, coke oven and the like. On this basis, the embodiment of the invention provides a metallurgical gas furnace kiln energy efficiency evaluation analysis method, and with reference to fig. 1, the method comprises the following steps:
101. constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library;
102. calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from the furnace kiln basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct;
103. and according to the furnace type specification in the basic database of the metallurgical gas furnace, screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library, and making an energy efficiency optimization measure.
Based on the content of the above method embodiment, as an optional embodiment, the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln provided in the embodiment of the present invention, wherein if the criterion value is within the preset threshold range, the calculation result is correct, and the method includes: and subtracting the heat balance income item from the heat balance expenditure item, dividing the difference value by the heat balance income item to obtain the judgment basis value, and if the judgment basis value is less than or equal to +/-5%, the calculation result is correct. Specifically, the difference between the heat balance income item and the heat balance expenditure item is divided by the value of the heat balance income item, whether the value is less than or equal to +/-5% is judged, if the value is less than or equal to +/-5%, the test data and the calculation process are normal, otherwise, the test data or the calculation process is abnormal, the calculation program is operated again after the abnormal value is checked and corrected again until the difference between the heat income item and the heat expenditure item is divided by the value of the heat income item is less than or equal to +/-5%; and calculating the heat efficiency and main technical and economic indexes according to the heat balance calculation result.
Based on the content of the method embodiment, as an optional embodiment, the energy efficiency evaluation analysis method for the metallurgical gas furnace kiln provided in the embodiment of the present invention, which screens the average index and the advanced index in the energy efficiency evaluation and optimization standard library to make energy efficiency optimization measures, includes: and screening the process parameters and the equipment parameters of the average index and the advanced index, and making energy efficiency optimization measures according to screening results. Specifically, the energy efficiency evaluation and optimization standard library is formulated by analyzing relevant average indexes and advanced indexes of metallurgical gas furnaces with the same or similar sizes of the domestic and foreign furnace types, corresponding to relevant process parameters and equipment facility parameters.
Based on the content of the above method embodiment, as an optional embodiment, the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln provided in the embodiment of the present invention includes: design data and operational data; the design data comprises overhaul data of the metallurgical gas furnace kiln, which is used for calculating the external surface area of the metallurgical gas furnace kiln and the external surface area of the accessory facilities of the metallurgical gas furnace kiln; the operation data comprises annual monthly output and fuel quantity of the metallurgical gas furnace kiln and is used for judging the overall operation condition of the metallurgical gas furnace kiln. Specifically, the basic database of the metallurgical gas furnace comprises design data and operation data, wherein the design data comprises overhaul conditions so as to calculate the external surface area of the furnace kiln and the accessory equipment facilities thereof and calculate the surface heat loss; the operation data comprises annual working data on the kiln, including monthly yield, fuel quantity and the like, and the overall operation condition of the kiln is known.
Based on the content of the above method embodiment, as an optional embodiment, the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln provided in the embodiment of the present invention includes: and water, saturated or supersaturated steam, specific heat capacity of each component of flue gas, specific heat capacity and enthalpy of each component of coal gas, specific heat, thermogravimetry and heat conductivity coefficient of each steel type in the heat balance calculation process.
Based on the content of the above method embodiment, as an optional embodiment, the metallurgical gas furnace kiln energy efficiency evaluation analysis method provided in the embodiment of the present invention includes: data input and judgment, income item calculation, expenditure item calculation and calculation result judgment; selecting input items and output items according to the specific type of the kiln by the heat balance calculation; the heat balance calculation is finished by editing a Matlab GUI interface, and comprises an initial setting interface, a calculation condition preview interface and a calculation result interface, wherein the calculation result interface comprises calculation conditions, a heat balance income item and a payment item. Specifically, the heat balance calculation method for the metallurgical gas furnace is based on the latest national standard, such as GBT 33956-.
Based on the content of the above method embodiment, as an optional embodiment, the energy efficiency evaluation analysis method for a metallurgical gas furnace kiln provided in the embodiment of the present invention further includes: and setting system authority for preventing effective data from being deleted accidentally or recording improper data into the basic database and/or the physical property database of the common substances of the metallurgical gas furnace.
According to the metallurgical gas furnace kiln energy efficiency evaluation analysis method and the device, various databases are constructed in the early stage, the heat balance calculation result is evaluated, and efficiency optimization measures are further formulated on the basis, so that the energy efficiency levels of various gas furnaces can be rapidly diagnosed and evaluated, optimization reference measures are provided for device improvement, and the economic benefits of saving energy, reducing consumption and reducing cost are realized.
In order to more clearly illustrate the essence of the technical solution of the present invention, on the basis of the above embodiments, specific embodiments are proposed, and the overall view of the technical solution of the present invention is presented in detail. It should be noted that the specific embodiments are only for embodying the technical essence of the present invention, and do not limit the protection scope of the present invention, and those skilled in the art can obtain any combination type technical solution meeting the essence of the technical solution of the present invention by combining the technical features on the basis of the various embodiments of the present invention, and as long as the combined technical solution can be practically implemented, the combined technical solution is within the protection scope of the present patent.
In a specific embodiment, the metallurgical gas furnace kiln heat balance measurement data is input into an Excel spreadsheet, test data in the Excel spreadsheet is called through database software Access, a value range is set in the database software Access, and data outside the range is judged to be illegal data. After the data is selected, the programming software Matlab calls a furnace kiln basic database, a common physical property database and the selected thermal balance measurement data to calculate a thermal income item and a heat expenditure item, and calculates whether the value of the thermal income item divided by the difference between the thermal income item and the heat expenditure item is less than or equal to +/-5%, if the value of the thermal income item is less than or equal to +/-5%, the test data and the calculation process are normal, otherwise, the test data or the calculation process is abnormal, the calculation program is operated again after the abnormal value is checked and corrected again until the value of the thermal income item divided by the difference between the thermal income item and the heat expenditure item is less than or equal to +/-5%; and calculating the heat efficiency and main technical and economic indexes according to the heat balance calculation result. And screening the difference between the average index and the advanced index in the energy efficiency evaluation and optimization standard database industry according to the size of the furnace type in the basic database and the like, and making energy efficiency optimization measures according to the related process parameters and equipment facility parameters of the two.
In another embodiment, the heat balance measurement data of the metallurgical gas furnace kiln is directly input into a GUI interface text box compiled by programming software according to a prompt, a value range is set in the text box, and data outside the range is judged as illegal data. After the data is selected, the programming software Matlab calls a furnace kiln basic database, a common physical property database and the selected thermal balance measurement data to calculate a thermal income item and a heat expenditure item, and calculates whether the value of the thermal income item divided by the difference between the thermal income item and the heat expenditure item is less than or equal to +/-5%, if the value of the thermal income item is less than or equal to +/-5%, the test data and the calculation process are normal, otherwise, the test data or the calculation process is abnormal, the calculation program is operated again after the abnormal value is checked and corrected again until the value of the thermal income item divided by the difference between the thermal income item and the heat expenditure item is less than or equal to +/-5%; and calculating the heat efficiency and main technical and economic indexes according to the heat balance calculation result. And screening the difference between the average index and the advanced index in the energy efficiency evaluation and optimization standard database industry according to the size of the furnace type in the basic database and the like, and making energy efficiency optimization measures according to the related process parameters and equipment facility parameters of the two.
The implementation basis of the various embodiments of the present invention is realized by programmed processing performed by a device having a processor function. Therefore, in engineering practice, the technical solutions and functions thereof of the embodiments of the present invention can be packaged into various modules. Based on the practical situation, on the basis of the above embodiments, the embodiment of the invention provides an energy efficiency evaluation and analysis device for a metallurgical gas furnace, which is used for executing the energy efficiency evaluation and analysis method for the metallurgical gas furnace in the above method embodiment. Referring to fig. 2, the apparatus includes:
the database construction module 201 is used for constructing a basic database of the metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard database;
the judging module 202 is used for calling in test data required by heat balance calculation, eliminating unqualified data according to a test data rule, calling calculation data from the furnace basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judging basis value is within a preset threshold value range, the calculation result is correct;
and the energy efficiency optimization measure making module 203 is used for screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library according to the furnace type specification in the basic database of the metallurgical gas furnace to make energy efficiency optimization measures.
According to the energy efficiency evaluation and analysis method and equipment for the metallurgical gas furnace, provided by the embodiment of the invention, the database construction module, the judgment module and the energy efficiency optimization measure making module are adopted, various databases are constructed in the early stage, the heat balance calculation result is judged, and the efficiency optimization measure is further made on the basis, so that the energy efficiency levels of various gas furnaces can be rapidly diagnosed and evaluated, an optimization reference measure is provided for equipment improvement, the energy saving and consumption reduction are realized, and the economic benefit of cost reduction is reduced.
It should be noted that, the apparatus in the apparatus embodiment provided by the present invention may be used for implementing methods in other method embodiments provided by the present invention, except that corresponding function modules are provided, and the principle of the apparatus embodiment provided by the present invention is basically the same as that of the apparatus embodiment provided by the present invention, so long as a person skilled in the art obtains corresponding technical means by combining technical features on the basis of the apparatus embodiment described above, and obtains a technical solution formed by these technical means, on the premise of ensuring that the technical solution has practicability, the apparatus in the apparatus embodiment described above may be modified, so as to obtain a corresponding apparatus class embodiment, which is used for implementing methods in other method class embodiments. For example:
based on the content of the above device embodiment, as an optional embodiment, the energy efficiency evaluation and analysis device for a metallurgical gas furnace kiln provided in the embodiment of the present invention further includes: and the difference item distinguishing module is used for making a difference between the heat balance income item and the heat balance expenditure item, dividing the difference value by the heat balance income item to obtain the distinguishing basis value, and if the distinguishing basis value is less than or equal to +/-5%, the calculation result is correct.
The method of the embodiment of the invention is realized by depending on the electronic equipment, so that the related electronic equipment is necessarily introduced. To this end, an embodiment of the present invention provides an electronic apparatus, as shown in fig. 3, including: at least one processor (processor)301, a communication Interface (Communications Interface)304, at least one memory (memory)302 and a communication bus 303, wherein the at least one processor 301, the communication Interface 304 and the at least one memory 302 are configured to communicate with each other via the communication bus 303. The at least one processor 301 may call logic instructions in the at least one memory 302 to perform the following method: constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library; calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from the furnace kiln basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct; and according to the furnace type specification in the basic database of the metallurgical gas furnace, screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library, and making an energy efficiency optimization measure.
Furthermore, the logic instructions in the at least one memory 302 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. Examples include: constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library; calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from the furnace kiln basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct; and according to the furnace type specification in the basic database of the metallurgical gas furnace, screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library, and making an energy efficiency optimization measure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. Based on this recognition, each block in the flowchart or block diagrams may represent a module, a program segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In this patent, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 (7)
1. The energy efficiency evaluation analysis method for the metallurgical gas furnace kiln is characterized by comprising the following steps of:
constructing a basic database of a metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard library;
calling in test data required by heat balance calculation, removing unqualified data according to a test data rule, calling calculation data from the furnace kiln basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judgment basis value is within a preset threshold value range, judging that the calculation result is correct;
according to the furnace type specification in the basic database of the metallurgical gas furnace, the average index and the advanced index in the energy efficiency evaluation and optimization standard library are screened, and energy efficiency optimization measures are made;
if the judgment basis value is within the preset threshold range, the calculation result is correct, and the method comprises the following steps:
the heat balance income item and the heat balance expenditure item are subjected to subtraction, the difference value is divided by the heat balance income item to obtain the judgment basis value, and if the judgment basis value is less than or equal to +/-5%, the calculation result is correct;
the metallurgical gas furnace kiln basic database comprises:
design data and operational data;
the design data comprises overhaul data of the metallurgical gas furnace kiln, which is used for calculating the external surface area of the metallurgical gas furnace kiln and the external surface area of the accessory facilities of the metallurgical gas furnace kiln;
the operation data comprises annual monthly yield and fuel quantity of the metallurgical gas furnace kiln and is used for judging the integral operation condition of the metallurgical gas furnace kiln;
the common material property database comprises:
and water, saturated or supersaturated steam, specific heat capacity of each component of flue gas, specific heat capacity and enthalpy of each component of coal gas, specific heat, thermogravimetry and heat conductivity coefficient of each steel type in the heat balance calculation process.
2. The energy efficiency evaluation and analysis method for the metallurgical gas furnace kiln according to claim 1, wherein the step of screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library to make energy efficiency optimization measures comprises the following steps:
and screening the process parameters and the equipment parameters of the average index and the advanced index, and making energy efficiency optimization measures according to screening results.
3. The metallurgical gas furnace kiln energy efficiency assessment analysis method according to claim 1, wherein the heat balance calculation comprises:
data input and judgment, income item calculation, expenditure item calculation and calculation result judgment; selecting input items and output items according to the specific type of the kiln by the heat balance calculation; the heat balance calculation is finished by editing a Matlab GUI interface, and comprises an initial setting interface, a calculation condition preview interface and a calculation result interface, wherein the calculation result interface comprises calculation conditions, a heat balance income item and a payment item.
4. The energy efficiency evaluation analysis method for the metallurgical gas furnace kiln according to the claim 1, characterized by further comprising:
and setting system authority for preventing effective data from being deleted accidentally or recording improper data into the basic database and/or the physical property database of the common substances of the metallurgical gas furnace.
5. The utility model provides a metallurgical gas furnace kiln efficiency evaluation analytical equipment which characterized in that includes:
the database construction module is used for constructing a basic database of the metallurgical gas furnace kiln, a physical property database of common substances and an energy efficiency evaluation and optimization standard database;
the judging module is used for calling in test data required by heat balance calculation, eliminating unqualified data according to a test data rule, calling calculation data from the furnace basic database and the common material physical property database, calculating according to a heat balance income item and a deduction item calculation rule to obtain a calculation result, and if a judging basis value is within a preset threshold value range, the calculation result is correct;
the energy efficiency optimization measure making module is used for screening the average index and the advanced index in the energy efficiency evaluation and optimization standard library according to the furnace type specification in the metallurgical gas furnace kiln basic database to make energy efficiency optimization measures;
if the judgment basis value is within the preset threshold range, the calculation result is correct, and the method comprises the following steps:
the heat balance income item and the heat balance expenditure item are subjected to subtraction, the difference value is divided by the heat balance income item to obtain the judgment basis value, and if the judgment basis value is less than or equal to +/-5%, the calculation result is correct;
the metallurgical gas furnace kiln basic database comprises:
design data and operational data;
the design data comprises overhaul data of the metallurgical gas furnace kiln, which is used for calculating the external surface area of the metallurgical gas furnace kiln and the external surface area of the accessory facilities of the metallurgical gas furnace kiln;
the operation data comprises annual monthly yield and fuel quantity of the metallurgical gas furnace kiln and is used for judging the integral operation condition of the metallurgical gas furnace kiln;
the common material property database comprises:
and water, saturated or supersaturated steam, specific heat capacity of each component of flue gas, specific heat capacity and enthalpy of each component of coal gas, specific heat, thermogravimetry and heat conductivity coefficient of each steel type in the heat balance calculation process.
6. An electronic device, comprising:
at least one processor, at least one memory, a communication interface, and a bus; wherein the content of the first and second substances,
the processor, the memory and the communication interface complete mutual communication through the bus;
the memory stores program instructions executable by the processor, the processor calling the program instructions to perform the method of any of claims 1 to 4.
7. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 4.
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