A Method for Gas Safety and Economic Evaluation
An economic evaluation and gas technology, applied in the fields of information technology and mathematical modeling, can solve the problems of inability to predict gas supply and demand, a large number of simulation machine modules, and a large workload of simulation machine modeling.
Inactive Publication Date: 2016-01-20
NR ELECTRIC CO LTD +1
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Chinese invention patent CN200710178960.7 proposes a gas dynamic simulation method for iron and steel enterprises. By establishing a complete dynamic model for each gas-related equipment and gas pipeline network, the gas system can be completely described. However, the number of simulator modules involved is large, and the simulator construction The modeling workload is large, and it is difficult to put it into actual production application; Chinese invention patent CN200710016562.5 proposes a gas volume regression prediction method based on historical data, which can meet the requirements of short-term forecasting, but cannot realize long-term gas supply and demand forecasting
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[0050] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0051] The invention provides a gas safety and economic evaluation method, which includes the following four stages:
[0052] The first stage: Division of gas equipment units and scheduling priority setting: Divide various equipment in the gas system of metallurgical enterprises into four categories according to their functions and characteristics in the gas pipeline network: generating units, buffer units, Conversion unit and consumption unit, wherein, the generation unit includes coke oven, blast furnace and converter; the buffer unit includes gas pipe network, gas cabinet, self-contained power plant boiler, etc.; the conversion unit includes blast furnace gas residual pressure turbine power generation device (TRT), etc.; Consumption units include blast furnace hot blast stoves, steel rolling heating furnaces, sintering preheating furnace...
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The invention discloses a method for evaluating the safety and economy of a coal gas. The method comprises the following steps of: dividing coal gas equipment units, and setting scheduling priorities; analyzing main factors influencing a coal gas volume on the basis of the historical running data of a main production procedure and the yield of each branch factory by adopting a grey relational analysis method; predicting coal gas volume data under a certain given production plan by adopting a regression method according to the analyzed main factors, determining a balance relationship between the supply and consumption of the coal gas, and evaluating the safety state of the whole coal gas pipe network; if the coal gas is evaluated to be in short supply, allocating the coal gas to consumers according to the scheduling priorities of equipment to ensure the coal gas volume of the users with high scheduling priorities; and if the coal gas is evaluated to be in a redundant state, optimally allocating the coal gas by using a nonlinear-plan-based coal gas safety and economy evaluation model. According to the method, important technical means is provided for energy resource and production scheduling personnel of a metallurgical enterprise to scientifically make a production plan and rationally allocate coal gas resources.
Description
technical field [0001] The invention belongs to the field of information technology and mathematical modeling, and relates to the safety and economic evaluation technology of metallurgical by-product gas, in particular to a gas safety and economic evaluation method combined with the production plan of metallurgical enterprises. Background technique [0002] The total energy consumption of the iron and steel industry accounts for about 10% of the country's total industrial energy consumption, and by-product gas is an important secondary energy source in iron and steel complexes, accounting for about 30% of the total energy consumption of enterprises. By-product gas in iron and steel enterprises mainly includes coke oven gas, blast furnace gas and converter gas. Due to problems in plant planning, pipeline network design, and production scheduling, iron and steel enterprises often have the phenomenon that on the one hand, they are dissipated due to excess gas, and on the other ...
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IPC IPC(8): G06F17/15
Inventor 殷捷郝勇生郝飞李兵彭兴陆鑫王建勇孟宪宇
Owner NR ELECTRIC CO LTD