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Joint debugging operation control system and method based on garbage gasification coupling coal-fired power generation

A technology of operation control and gasification system, applied in the field of resource treatment, can solve problems such as coal-fired boiler operation impact, load fluctuation, etc., to achieve the effect of ensuring safety and stability, and increasing the number of operating hours

Pending Publication Date: 2020-12-29
ZHEJIANG ZHENENG ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many domestic studies on waste gasification power generation, and there are several patents involving waste gasification coupled with coal-fired power generation. The coal-fired units are all units under the provincial unified regulation, and the daily operating load fluctuates greatly. When the coupled coal-fired boiler adjusts the load according to the requirements of the provincial unified regulation, if the timely and reasonable joint operation control of the waste gasification system is not carried out, the gasification Once the combustible gas blending ratio exceeds the normal ratio range, it will have a certain impact on the operation of coal-fired boilers

Method used

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  • Joint debugging operation control system and method based on garbage gasification coupling coal-fired power generation
  • Joint debugging operation control system and method based on garbage gasification coupling coal-fired power generation

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Effect test

Embodiment 1

[0031] Embodiment 1 provides an integrated debugging operation control system based on waste gasification coupled with coal-fired power generation, including a waste gasification system and a coal-fired system coupled with gasification combustible gas.

[0032] The garbage gasification system includes a garbage bin 1, a feeder 2, a gasification furnace 3, a blower 4, a gas cooler 5, a gas induced draft fan 6, a first electric control valve 7 and a first stop valve 8, and the feeder The inlet of 2 is connected with the outlet of garbage bin 1, the outlet of feeder 2 is connected with the feeding inlet of gasifier 3, and the inlet of gasifier 3 is connected with the outlet of feeder 2 and the outlet of blower 4 respectively. The outlet of the chemical furnace 3 is connected to the gas inlet of the gas cooler 5, and the gas outlet of the gas cooler 5 is connected to the gasification combustible gas coupling combustion chamber through the gas induced draft fan 6, the first electric...

Embodiment 2

[0035]This embodiment 2 provides a control method based on the joint commissioning operation control system based on waste gasification coupled with coal-fired power generation. The waste gasification system gasifies waste at high temperature to generate gasified combustible gas, and then the gasified combustible gas is cooled by a gas cooler After reaching 400-500°C, the gas-fired induced draft fan is sent into the gasification combustible gas coupling coal-fired system through the pipeline, and finally enters the coal-fired boiler and pulverized coal for coupled combustion through various valves. The waste gasification system can realize the variable working condition adjustment of the gasification furnace operation through the frequency conversion adjustment means of the feeder and the blower, and at the same time, the first electric control valve can be used to realize the synchronous adjustment of the gasification combustible gas flow. During normal operation, the second s...

Embodiment 3

[0037] Embodiment 3 provides a control method for the joint commissioning operation control system based on waste gasification coupled with coal-fired power generation. When the following operating conditions occur in the joint commissioning operation control system based on waste gasification coupled with coal-fired power generation, the control system mainly adjusts as follows:

[0038] 1) When the coal-fired units in joint commissioning operation have frequent peak shaving, the backup coupling branch can be started at any time to balance the combustible gas, so as to ensure the normal and stable operation of the two coal-fired units and the garbage gasification system is always running in the best working condition. Once the coal-fired unit in joint debugging operation has frequent peak regulation problems, it can be started by operating the second emergency shut-off valve 14 (or the first emergency shut-off valve 9), the third electric regulating valve 15 (or the second ele...

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Abstract

The invention relates to a joint debugging operation control system based on garbage gasification coupled coal-fired power generation. The joint debugging operation control system comprises a garbagegasification system and a gasification combustible gas coupled coal-fired system. The garbage gasification system comprises a garbage bin, a feeding machine, a gasification furnace, an air blower, a fuel gas cooler, a fuel gas induced draft fan, a first electric control valve and a first stop valve. The system has the beneficial effects that the two coupling branches are designed to be standby foreach other, gasified combustible gas generated by the garbage gasification system can be switched and balanced at any time on the premise that normal economic operation of the two boilers can be guaranteed, and it is guaranteed that the gasification furnace is in the optimal operation working condition; the emergency shut-off valve is arranged and used for achieving emergency shut-off of the gasification combustible gas coupling coal-fired system pipeline and emergency shut-off of the gasification furnace when the two coal-fired boilers fail to shut down at the same time or gasification system equipment fails, and the safety and stability of the gasification system and the coal-fired boilers are fully guaranteed.

Description

technical field [0001] The invention relates to a resource treatment technology for solid wastes such as garbage-derived fuels and combustible general industrial garbage, and specifically relates to a joint commissioning operation control system based on garbage gasification coupled with coal-fired power generation. Background technique [0002] At present, there are many domestic studies on waste gasification power generation, and there are several patents involving waste gasification coupled with coal-fired power generation. The coal-fired units are all units under the provincial unified regulation, and the daily operating load fluctuates greatly. When the coupled coal-fired boiler adjusts the load according to the requirements of the provincial unified regulation, if the timely and reasonable joint operation control of the waste gasification system is not carried out, the gasification Once the proportion of combustible gas blending exceeds the normal proportion range, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/86C10J3/72
CPCC10J3/723C10J3/86C10J2300/0946C10J2300/1606
Inventor 吕洪炳张东明郭锦荣钟金鸣樊立安施望德于伟华许姣陈理帅严秋雨李振东
Owner ZHEJIANG ZHENENG ENERGY SAVING TECH
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