Optimization method and system of fuel gas system based on heat value balance

An optimization method, fuel gas technology, applied in the direction of instruments, data processing applications, forecasting, etc., can solve problems such as low efficiency, achieve the effect of improving stability, strong executable, and improving economic benefits

Active Publication Date: 2018-05-01
ZHEJIANG SUPCON SOFTWARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to provide an optimization method for a fuel gas system based on calorific value balance. By constructing a correlation function between effici...

Method used

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  • Optimization method and system of fuel gas system based on heat value balance
  • Optimization method and system of fuel gas system based on heat value balance
  • Optimization method and system of fuel gas system based on heat value balance

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Embodiment 1

[0054] The optimization method of the fuel gas system based on calorific value balance provided by the present invention, such as figure 1 As shown, the method specifically includes:

[0055] Step 1. Improve the instruments in the fuel gas system, and monitor the production-consumption balance and fuel calorific value in the fuel gas system based on the improved instruments;

[0056] Step 2. Obtain the historical operating data of the heating furnace from the real-time database, divide the fuel consumption of the heating furnace into at least two operating intervals according to the historical operating data, and construct the relationship between the efficiency of the heating furnace and the calorific value of the fuel in each operating interval function, and obtain the calorific value of the fuel corresponding to the maximum efficiency of the heating furnace in each operating interval by solving;

[0057] Step 3. Obtain the gas output and calorific value of the gas by-produ...

Embodiment 2

[0133] Another embodiment of the present application also provides an optimization system 3 of the fuel gas system based on calorific value balance, such as Figure 6 As shown, the optimization system includes:

[0134] The monitoring unit 31 is used to improve the instruments in the fuel gas system, and monitor the production-consumption balance and fuel calorific value in the fuel gas system based on the improved instruments;

[0135] The processing unit 32 is used to obtain the historical operating data of the heating furnace from the real-time database, divide the fuel consumption of the heating furnace into at least two operating intervals according to the historical operating data, and construct the relationship between the efficiency of the heating furnace and the calorific value of the fuel in each operating interval. The correlation function among them is obtained by solving the fuel calorific value corresponding to the maximum efficiency of the heating furnace in eac...

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Abstract

The invention proposes an optimization method and system of a fuel gas system based on heat value balance, and relates to the field of fuel gas system control. The method comprises improving the production and consumption balance rate of a fuel gas by means of meter calibration and newly-added meters, and tracking the change of the heat value of the fuel gas; obtaining the optimal fuel heat valuerequirements of respective fuel consumption devices by using the thermal efficiency of a heating furnace as an evaluation index and by using a data mining method; performing pinch point analysis to obtain the best supply and use matching network of the fuel gas, and optimizing and reforming a fuel gas pipe network based on this, and constructing an operational optimization model of the fuel gas system by using the fuel heat value requirements, the fuel consumption and the pressure requirements of respective heating furnace as constraints, and giving a recovery scheme of effective components inthe gas, a fuel replenishment scheme and an fuel optimal distribution scheme; performing steady-state detection on the fuel gas system and executing an optimized operation plan on the basis of ensuring the stable operation of the system to achieve optimized and efficient operation of the fuel gas system and to improve the overall economic efficiency of a refinery.

Description

technical field [0001] The invention relates to the field of fuel gas system control, in particular to an optimization method and system for a fuel gas system based on calorific value balance. Background technique [0002] Fuel gas is an important part of the energy consumption of domestic refining and chemical enterprises, accounting for more than 80% of the energy consumption of the refinery's atmospheric and vacuum, coking, reforming and other equipment. In recent years, domestic large and medium-sized refineries have basically eliminated gas flares by controlling gas emissions and adding storage equipment such as gas cabinets. However, the recovery and utilization of useful components in gas is still insufficient, and the thermal efficiency of the fuel gas system heating furnace The phenomenon of low and waste of high value-added effective components still exists widely. Therefore, to do a good job in the balance and optimization of the gas system is the key to ensure t...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06312G06Q10/06315G06Q50/06
Inventor 王宽心韩晓春娄海川吴玉成侯卫锋王贵宏
Owner ZHEJIANG SUPCON SOFTWARE
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