Electrostatic Precipitator for Extractive Concentration Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Extractive measurement methods for determining substance concentrations, such as dust or aerosol levels, face challenges due to device soiling, requiring frequent cleaning or the use of additional mechanically moving parts and external clean air, which can lead to increased maintenance and risk of failure.
Innovation Solution
Integration of an electrostatic precipitator within the measuring device to separate dust particles using a strong electrical field, allowing for zero point determination and linearity testing without additional mechanically working parts or external clean air, utilizing a potential difference and electro-deposition to charge and deposit particles effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the measuring device is cleaned regularly to eliminate soiling effects, then measurement precision is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent replaces mechanical cleaning systems (moving parts, brushes, airflow generators) with an electrical field-based cleaning mechanism. The electrostatic precipitator uses high voltage to create an electric field that attracts and removes particles from the measuring device surface without any mechanical movement, thereby maintaining measurement precision while reducing device complexity and maintenance needs
Solution Approach 2:
The measuring device performs its own cleaning automatically through the electrostatic precipitator system. The high voltage electrode generates an electric field that self-activates to remove contaminants from the measuring chamber, eliminating the need for external cleaning mechanisms or manual intervention, thus improving precision without adding operational complexity
2Measurement precision
If external clean air is supplied to perform zero point determination, then measurement precision is improved, but device complexity and availability requirements increase
Solution Approach 1:
The patent replaces the mechanical approach of supplying external clean air (requiring air generation equipment, ducts, and flow control) with an electrical field-based particle removal system. The electrostatic precipitator uses high voltage to electrostatically precipitate particles from the air stream directly within the measuring device, enabling zero point determination without external clean air supply infrastructure
Solution Approach 2:
The patent introduces a high voltage electrode as an intermediary element between the contaminated air stream and the measuring device. This electrode generates the electric field that acts as a mediator to remove particles from the air before it reaches the measuring chamber, eliminating the need for external clean air sources while maintaining measurement precision
3Measurement precision
If filters are used to clean the gas flow, then measurement precision is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent replaces mechanical filters (which require physical installation, monitoring, and replacement) with an electrical field-based particle removal system. The electrostatic precipitator uses high voltage to electrostatically precipitate particles from the gas flow, eliminating filter media and the associated maintenance activities, thereby improving gas flow cleanliness while enhancing ease of repair and reducing operational complexity
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
Enables precise and repeatable determination of substance concentrations with reduced maintenance and no need for external clean air or filter replacement, improving measuring accuracy and reducing wear-related failures.
Implementation Method 1
the gas stream is treated with an electrostatic precipitator before or during at least one measurement
Implementation Method 2
separate dust particles using a strong electrical field, allowing for zero point determination and linearity testing
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a method and a device (10) for the extractive determination of the concentration of one or more substances by measuring (20) at least one physical parameter. This allows the extractive concentration determination to be carried out very accurately and with continuous reproducibility, whereby zero-point determination can be performed without additional valves, air ducts, clean air connections and/or replaceable filters, even during continuous operation. Furthermore, linearity tests can also be performed alternatively or additionally.