Double-CPU-based controller for high voltage electrostatic precipitator

A high-voltage electrostatic and dust-removing device technology, applied in the controller field of high-voltage electrostatic dust-removing devices, can solve the problems of reduced system reliability, inability to achieve interconnection of signal transmission, and inability to reliably connect high and low voltage equipment, and achieve reliable performance and humanized display. The effect of high degree of interface and product integration

Inactive Publication Date: 2011-05-11
大连电子研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, a separate high-voltage controller for electrostatic precipitator can only complete high-voltage control, and the low-voltage part needs to be completed by additional controllers such as PLC, which leads to the inability of reliable communication between high-voltage and low-voltage equipment. Communication is used to achieve connection, and unidirectional signal transmission cannot realize interconnection, so the realization of many functions is limited, and the reliability of the entire system is also reduced

Method used

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  • Double-CPU-based controller for high voltage electrostatic precipitator
  • Double-CPU-based controller for high voltage electrostatic precipitator

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Embodiment approach 1

[0020] figure 1 It is a structural schematic diagram of a controller of a high-voltage electrostatic precipitator based on dual CPUs of the present invention, including a main control unit, an I / O unit, an input unit, and an output unit; wherein: the main control unit includes a high-voltage control CPU 1, Low-voltage control CPU 2, drive circuit 3, communication interface circuit 4, thyristor trigger drive circuit 5, analog input circuit 6, photoelectric isolator 7; wherein: the high-voltage control CPU 1 and the low-voltage control CPU 2 are connected in series The high-voltage control CPU 1 and the low-voltage control CPU 2 are connected to the I / O unit, the keyboard input unit and the liquid crystal display output unit through the drive circuit 3; the low-voltage control CPU 2 is triggered by the photoelectric isolator 7 and the thyristor The drive circuit 5 is connected to the analog input circuit 6; the I / O unit is connected to the external input and output interface; th...

Embodiment approach 2

[0025]figure 1 It is a structural schematic diagram of a controller of a high-voltage electrostatic precipitator based on dual CPUs of the present invention, including a main control unit, an I / O unit, an input unit, and an output unit; wherein: the main control unit includes a high-voltage control CPU 1, Low-voltage control CPU 2, drive circuit 3, communication interface circuit 4, thyristor trigger drive circuit 5, analog input circuit 6, photoelectric isolator 7; wherein: the high-voltage control CPU 1 and the low-voltage control CPU 2 are connected in series The high-voltage control CPU 1 and the low-voltage control CPU 2 are connected to the I / O unit, the keyboard input unit and the liquid crystal display output unit through the drive circuit 3; the low-voltage control CPU 2 is triggered by the photoelectric isolator 7 and the thyristor The drive circuit 5 is connected to the analog input circuit 6; the I / O unit is connected to the external input and output interface; the ...

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Abstract

The invention discloses a double-CPU(central processing unit)-based controller for a high voltage electrostatic precipitator, and belongs to the technical field of high voltage electrostatic precipitators. The double-CPU-based controller for the high voltage electrostatic precipitator comprises a master control unit, an input/output (I/O) unit, an input unit and an output unit, wherein the master control unit comprises a high voltage control CPU (1), a low voltage control CPU (2), a driving circuit (3), a communication interface circuit (4), a silicon controlled triggered driving circuit (5), an analog quantity input circuit (6) and an optoelectronic isolator (7). The double-CPU-based controller has the advantages of simple structure, reliable performance, high cost performance, low cost, high integration degree of products and the like.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrostatic precipitators, and more specifically, belongs to a controller of a high-voltage electrostatic precipitator based on dual CPUs. Background technique [0002] Since the mid-18th century, when mankind entered the era of industrial civilization, coal has become the main energy source. The combustion of coal not only produces a large amount of carbon, nitrogen and sulfur oxides, but also emits a large amount of dust into the air. Dust is extremely harmful to the environment and human health. Along with the rapid economic development, it means that people are converting more and more mineral resources into industrial raw materials and products. The smoke from factories and power stations that use coal as fuel takes away a large amount of coal powder every day, which not only wastes fuel, but also At the same time, more and more waste is thrown into nature. The billowing smoke from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/34
Inventor 李舒明初开丰韩见民
Owner 大连电子研究所有限公司
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