| As water of the origin of life, are playing indispensable function no matter in our daily life or social development, however, because of development and the population's increase of industry, the water resource that we depended on for existence is facing the shortage of serious pollution. So save water and develop new while in source of water, waste water control and purify, have equally important meanings. Waste water control and method to purify are varied, but it is that disinfectant is the chlorine dioxide to recognize as the most ideal chlorine in the world, and is praised highly for the fourth generation of disinfectant by American-European countries, its application is broader and broader. It is a domestic largest chemical law ClO2 generator professional manufacturing company too that Shandong University Walter Company develops first at home, enjoy higher popularity in domestic ClO2 and water treatment trade. Dependability and efficiency of this product depend on accurate amount of medicine given and reaction temperature, the original electric control system mainly adopts ways such as the common instrument repacking or PLC,etc. to realize, reaction efficiency and automatically controlled level to influence products, Shandong University China it begin, develop the generator control system of chlorine dioxide cooperatively with Company, Walter of Shandong University, 1997, successively succeeded in developing series of products such as HT908, HT99, HT2000, chlorine dioxide generator comprehensive controller,etc..To the principle of the chlorine dioxide generator, combine the temperature instrument and automatically controlled principle, design and develop the comprehensive controller with directing against type and special-purpose type, and according to the demands of different customers, the products seriation.Overall conceptual design, adopt AVR one-chip computer as the core of part of top management, temperature gather, adopt, have high-accuracy FT 100, temperature control adopt error segment, total mark and 2 intellectual PID to output amplitude limiting control algorithms, have improved the control precision of temperature; The measurement pump control adopts the one-chip computer and controls the way with light-coupled isolation regularly, have improved the measurement precision and dependability of the system of the measurement pump; Reveal respect, adopt way that LED combine with LCD, ocular and distinct; In addition, the products also have functions such as examining, historical incident record, communication,etc. by oneself of a trouble.Because of the nonlinearity of PT100, design the respect to revise it currently in the hardware at the time of the systematic design;Temperature control, two intellectual PID adopting error segmenting, total mark and outputting amplitude limiting control algorithms, have improved the control precision of temperature;Measurement pump control, adopt water flow measure feedforward and I chlorine measure way combined together to feedback, such ways as the output basis of the measurement pump adopts accurate timing of the one-chip computer timer, light-coupled isolation to output, anti-interference ability of accuracy and system of the ones that have improved to medicine quantity.Because the environment that the products use has strong corrosivity, and require the dependability of the products is very high, so in such aspects as resisting corrosivity, dependability of the products, have made more comprehensive analysis and design;With to popularize energetically computer, link with computer, make up centralized monitoring system realize long-range control become realistic and essential extremely even, this product adopts RS-485 interface, standard MODBUS communication agreement, ones that have realized with computer system are interconnected and concentrating on controlling;... |
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