Tripping control system of BPRT unit transmission clutch and control method of tripping control system

Abstract

The invention discloses a tripping control system of a BPRT unit transmission clutch and a control method of the tripping control system, and relates to the technical field of blast furnace blast gasexcess pressure energy recovery integrated devices. The technical problems that under the condition that blast furnace gas parameters of a BPRT unit abnormally fluctuate greatly, an engagement deviceof the transmission clutch is damaged due to violent impact are solved. The tripping control system comprises a tripping control device, a unit PLC, a stationary blade servo controller, a rotating speed sensor and a stationary blade position sensor. The unit PLC, the stationary blade servo controller and the rotating speed sensor are connected with the tripping control device through electric signals, the unit PLC can set the engagement rotating speed of the transmission clutch, the stationary blade servo controller is used for receiving signals of the tripping control device and the stationary blade position sensor and sending an instruction to a hydraulic device, the stationary blade servo controller controls the stationary blade angle of a turbo-expander through the hydraulic device, and therefore the rotating speed of the turbo-expander is controlled.

Description

technical field [0001] The invention relates to the technical field of a blast furnace blast gas residual pressure energy recovery combined device, in particular to a safety trip control system and a control method for a variable speed clutch in a BPRT unit. Background technique [0002] Blast furnace smelting is the pillar of the iron and steel industry, but blast furnace smelting consumes a lot of energy. Therefore, energy saving and consumption reduction is a prominent problem facing the iron and steel industry. At the same time, the intelligentization and informatization of equipment is also a development trend. The country also has policy support for this. The production process of the blast furnace smelting process puts forward higher requirements for the advanced and reliable functions of the control system. The BPRT unit (Blast furnace blast gas residual pressure energy recovery combined device) is a major energy-saving Gas residual pressure turbine power generation ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tripping control system and control method for the variable speed clutch of BPRT unit, so as to solve the problem of the speed change of BPRT unit when the blast furnace gas parameters fluctuate abnormally and greatly (such as the blast furnace gas flow rate and pressure increase rapidly after an instant drop). The technical problem that the engagement device of the clutch was damaged due to severe impact affected the safe operation of the BPRT unit

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