Energy-saving constant temperature automatic control method and device for movable grate boiler

An automatic control device and movable grate technology, which is applied in the boiler field, can solve the problems of large heating temperature error, large pollutant discharge, high fuel consumption, etc., and achieve the effects of reducing fuel waste, stabilizing the furnace temperature, and improving combustion efficiency

Inactive Publication Date: 2011-12-14
威海宝源电气有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to solve the problems of large heat carrier heating temperature error, high fuel consumption, low thermal efficiency, and large pollutant discharge that still exist in industrial boilers, and provide a real-time and accurate control of industrial boilers. Real-time automatic control method and system for heating temperature of heat carrier while improving combustion efficiency of industrial boiler

Method used

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  • Energy-saving constant temperature automatic control method and device for movable grate boiler
  • Energy-saving constant temperature automatic control method and device for movable grate boiler
  • Energy-saving constant temperature automatic control method and device for movable grate boiler

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Embodiment １

[0020] figure 1 As shown, the heat carrier input pipeline 8 of the present invention is equipped with a heat carrier input temperature transmitter 9, a heat carrier input pressure transmitter 10, a heat carrier input flow rate transmitter 11, a heat carrier input temperature transmitter 9, a heat carrier The input pressure transmitter 10, the heat carrier input flow transmitter 11 are connected with the control system operation unit; the heat carrier output temperature transmitter 15, the heat carrier output pressure transmitter 16, and the heat carrier output pipeline 18 are installed The output flow transmitter 17, the heat carrier output temperature transmitter 15, the heat carrier output pressure transmitter 16, and the heat carrier output flow transmitter 17 are connected with the operation unit of the control system; the furnace temperature transmitter is installed on the industrial boiler 14 Device 12, furnace differential pressure transmitter 13, furnace temperature tr...

Embodiment ２

[0027] As shown in Figure 2, the heat carrier output temperature transmitter 15, heat carrier output pressure transmitter 16, and heat carrier output flow transmitter 17 of the present invention are installed on the heat carrier output pipeline 18 connected to the water vapor drum 19, and other The structure is exactly the same as in Example 1.

[0028]The working principle of the invention is: the heat carrier of the industrial boiler circulates continuously between the heating part and the heat-using equipment through the pipeline, so as to meet the heat demand of industrial production. The heat required by the heating equipment is constantly changing, but the temperature of the heat carrier input to the heating equipment is required to be relatively stable. The dynamic demand of fuel is calculated according to the dynamic temperature parameters of the heat carrier output by the industrial boiler, and the real-time adjustment is made by controlling the speed of the grate moto...

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PUM

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Abstract

The invention relates to an energy-saving and constant-temperature automatic control method and device for a movable grate boiler, belonging to the field of boilers. Using heat carrier temperature parameters, furnace temperature parameters, furnace negative pressure parameters, furnace flue gas component content parameters, heat carrier flow parameters and heat carrier pressure parameters, through software analysis and expert database reasoning calculations, the fuel supply and combustion air volume can be determined in real time And the optimal data of the furnace negative pressure, real-time control of the operating speed of the movable grate of the boiler supplying fuel, the speed of the fan motor, and the speed of the wind-inducing motor, and then real-time control of the fuel supply, combustion air volume, and furnace negative pressure. The method and system of the present invention can accurately control the fuel supply, combustion-supporting air volume, and furnace negative pressure in real time during the combustion process, while accurately controlling the temperature of the output heat carrier, saving fuel and electric energy, and achieving the goals of energy saving, emission reduction, and consumption reduction .

Description

technical field [0001] The invention relates to the field of boilers, in particular to an energy-saving constant temperature automatic control method and device for a movable grate boiler. Background technique [0002] As we all know, industrial boilers are important equipment for providing heat energy required for production. The heat carrier is heated by fuel combustion, and the heat carrier at a certain temperature is transported to the heat-using equipment in the pipeline to meet the needs of industrial production. Improving the combustion efficiency of industrial boilers while accurately controlling the heating temperature of the heat carrier in real time is of great significance to the energy saving, consumption reduction, and emission reduction of industrial production and industrial boilers. [0003] Common movable grate industrial boilers use coal as the main fuel. Driven by the motor, the movable grate slowly transports the fuel into the furnace for combustion. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F22B35/00
Inventor 张明龙王明元邹勇殷晨光
Owner 威海宝源电气有限公司
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