| Centrifugal ventilators operating working condition microcomputer control system is a process of changing ventilator' s working condition, the survey data, the computation ventilator' s performance parameter and planning performance curve (flow capacity - full pressure curve, flow capacity - power curve, flow capacity - efficiency curve) under the condition of ventilators' invariable rotational speed as well as automatic regulating process by the microcomputer control system on the basis of the working condition which is needed in the course of working condition. It attaches great importance to the examination of end products, development of new products and economic operation in the practical work. At present, performance examination for air blower and the angle adjustment for the centrifugal ventilators prewhirler vane corner vane in our country are greatly handled by handwork with the following disadvantages such as laggard experimental method, heavy work and inaccurate test results and so on. The centrifugal ventilators working condition microcomputer control system will carry on the performance parameter automatic detection and processing for the ventilator, the automatic plan for performance curve as well as the automatic adjustment for the working conditions of the operation of ventilators controlled by microcomputer with the combination of transducer technology, the instrumental technology, the test technology and the microcomputer control technology, which will be the key point studied by this article.This system carried on the design of performance parameter automatic gain for ventilators, the hardware and the software for microcomputer control system with the microcomputer control technology. For the hardware, the wind speed sensor, the pressure transmitter, the temperature sensor, the angle sensor and intelligent electricity capacity transmitter are adopted for monitoring parameters for the ventilator so as to the realization of automatic gathering... |
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