Dry deslagging air leakage control device for power station boiler

Abstract

The invention provides a dry deslagging air leakage control device for a power station boiler, and belongs to the field of control devices. The dry deslagging air leakage control device comprises a slag discharging pipe and an exhaust pipe, the exhaust pipe is fixedly connected to the circumferential surface of the slag discharging pipe, and the exhaust pipe communicates with the slag discharging pipe; Through the arrangement of a wind meter, the size of air leakage can be monitored, monitored data are transmitted to a processor, a servo motor is controlled to be started through analysis of the processor, rotation of a first gear can be achieved through rotation of the output end of the servo motor, rotation of a baffle can be achieved through rotation of a rotating shaft, the opening size of the exhaust pipe can be controlled through rotation of the baffle, so that air exhaust is controlled according to the opening size, redundant air is prevented from leaking into boiler equipment, operation of the boiler equipment is prevented from being affected, and the problems that in the prior art, hot air is directly exhausted due to the fact that an exhaust pipe is directly installed on a slag discharging pipeline, and consequently hot air is exhausted too fast, the service life of the boiler equipment is affected, and hot air in the boiler can be quickly discharged, so that the operation of the boiler is influenced can be solved.

Description

technical field [0001] The invention belongs to the field of control devices, and in particular relates to a control device for dry slag discharge air leakage of a power plant boiler. Background technique [0002] The so-called power plant boiler, in general, is the boiler used by the power plant to generate electricity. Generally, the capacity is relatively large. The current main unit is 600MW, and the more advanced one is the ultra-supercritical boiler with a capacity of up to 1000MW. There are two main types of power plant boilers: pulverized coal boilers and circulating fluidized bed boilers. These two types of boilers are the main types currently used in power plants. The biggest difference between a fluidized bed furnace and a pulverized coal furnace is the state of the fuel, that is, liquid and coal powder. [0003] Power plant boilers will generate waste slag after generating electricity, and when the waste slag is discharged, hot air will be generated, and if th...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a dry slag discharge air leakage control device for power plant boilers, which aims to solve the problem that the hot air will be discharged directly when the exhaust pipe is directly installed on the slag discharge pipe in the prior art, which will cause the hot air to be discharged too quickly, causing The hot gas in the boiler will also be discharged quickly and affect the operation of the boiler

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