Electrostatic Precipitator Spark Discharge Simulation for Safe Measurement
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Solution Overview
Problem
High-voltage electrostatic precipitators face challenges in testing and measuring spark discharge due to their bulky nature, making it difficult to obtain discharge signals from all positions, which poses safety hazards and limits the understanding of spark discharge characteristics.
Innovation Solution
An apparatus and test method are developed to simulate spark discharge, comprising a pulse power supply, voltage divider, pulse capacitor unit, cathode rod, anode cylinder, and grounded current sampling unit, allowing for controlled simulation and measurement of spark discharge in a laboratory setting, using equivalent capacitance to replicate the electrical characteristics of the precipitator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct testing is performed on the bulky high-voltage electrostatic precipitator, then comprehensive discharge signal measurement can be obtained, but it causes safety hazards and creates wiring and measurement inconveniences
Solution Approach 1:
The patent creates an equivalent circuit model that copies the electrical characteristics of the actual precipitator. By using capacitors to simulate the precipitation tube capacitance and constructing a scaled-down equivalent circuit, the system reproduces spark discharge behavior without requiring direct testing on the full-scale precipitator, thereby eliminating safety hazards while maintaining measurement accuracy
Solution Approach 2:
The patent introduces a current sampling resistor as an intermediary element to measure discharge current. Instead of directly measuring current in the high-voltage circuit, the system converts current measurement into voltage measurement across the sampling resistor, enabling safe and accurate measurement of discharge characteristics without direct exposure to high voltage
2Measurement precision
If direct testing is performed on the high-voltage electrostatic precipitator, then actual discharge characteristics can be studied, but it creates wiring and measurement inconveniences
Solution Approach 1:
The equivalent circuit model copies only the essential electrical characteristics (capacitance, voltage, current) of the precipitator, eliminating the need for complex wiring to the actual device. The simplified circuit can be easily assembled and measured on a laboratory bench, greatly improving operational convenience while preserving the ability to study discharge characteristics
Solution Approach 2:
The patent replaces the complex mechanical and electrical system of the full-scale precipitator with an equivalent electrical circuit. This substitution transforms a difficult-to-wire and measure physical system into a manageable electrical circuit that can be easily connected to standard measurement equipment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The simulation apparatus facilitates safe and efficient measurement of spark discharge characteristics, reducing space requirements and enabling in-depth research on discharge energy and current, thus aiding in the design improvements and safety enhancements of high-voltage electrostatic precipitators.
Implementation Method 1
a pulse power supply, configured to provide a test voltage
Implementation Method 2
a voltage divider, configured to measure an electrode voltage
Implementation Method 3
a pulse capacitor unit, including a first pulse capacitor configured to simulate a precipitation tube on which spark discharge occurs in a precipitator, and a second pulse capacitor configured to simulate a capacitor of another precipitation tube connected in parallel
Implementation Method 4
a cathode rod, configured to simulate a cathode of the precipitator, where one end of the cathode rod is connected to the metal bar, and the other end of the cathode rod is placed in an anode cylinder configured to simulate an anode of the precipitator
Implementation Method 5
a grounded current sampling unit, configured to measure grounded current
Data Source
AI summary
An apparatus and test method for simulating spark discharge of a high-voltage electrostatic precipitator are provided. The simulation apparatus includes a pulse power supply configured to provide a test voltage, an anode cylinder configured to simulate an anode of a precipitator, a cathode rod configured to simulate a cathode of the precipitator, a pulse capacitor unit configured to simulate an electrode capacitor of the precipitator, an insulating support configured to hang the cathode rod, a voltage divider configured to measure an electrode voltage, and a grounded current sampling unit configured to measure grounded current. The simulation apparatus simulates a discharge process of the high-voltage electrostatic precipitator to measure discharge characteristic parameters such as discharge current and discharge energy of the high-voltage electrostatic precipitator. In this way, characteristics of spark discharge of the precipitator under different load conditions are simulated.