Wall Dehumidification System Using Variable Frequency Electromagnetic Field
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Solution Overview
Problem
Current dehumidification techniques for addressing rising damp in buildings are inefficient and invasive, particularly when dealing with generalized moisture issues in structures with varying chemical and physical compositions, as they often rely on arbitrary frequency settings for electromagnetic treatments that do not account for the specific characteristics of the wall materials.
Innovation Solution
A wall dehumidification system that generates a magnetic or electromagnetic field with a programmable frequency range (10Hz to 10kHz) and adjustable power, using a programmable clock generator and timer to create variable pulse sequences, allowing adaptation to the specific composition of the wall structure and optimizing the dehumidification process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electromagnetic dehumidification uses arbitrary fixed frequency, then the system is simple to operate, but it is ineffective for walls with varying chemical and physical compositions
Solution Approach 1:
The patent applies dynamics by transforming the static fixed-frequency electromagnetic field into a dynamic variable-frequency field. The system automatically adjusts the frequency within the range of 10Hz to 10kHz based on real-time detection of the wall's dielectric constant, enabling the dehumidification system to adapt to different wall compositions and moisture conditions without manual intervention.
Solution Approach 2:
The patent implements feedback through a detection device that continuously monitors the dielectric constant of the wall and feeds this information back to the frequency adjustment mechanism. This closed-loop control ensures the electromagnetic field frequency remains optimized for the current wall condition, resolving the contradiction between operational simplicity and dehumidification effectiveness.
2Reliability
If electromagnetic field frequency is adjusted to match wall characteristics, then dehumidification effectiveness improves, but the system complexity increases
Solution Approach 1:
The patent applies self-service by enabling the system to automatically detect wall characteristics and adjust its own operating frequency without external intervention. The integrated detection and control system performs self-diagnosis and self-adjustment, eliminating the need for manual configuration or complex external control equipment.
Solution Approach 2:
The patent achieves universality by designing a multi-functional system that combines moisture detection, dielectric constant measurement, frequency analysis, and automatic frequency adjustment in a single integrated device. This allows the same system to handle various wall types and moisture conditions universally, reducing overall system complexity despite the advanced capabilities.
3Productivity
If invasive dehumidification techniques are used, then moisture removal can be achieved, but the structure is damaged and feasibility is reduced
Solution Approach 1:
The patent replaces invasive mechanical or chemical dehumidification methods with a non-invasive electromagnetic field-based system. Instead of physically drilling, injecting chemicals, or installing barriers in the wall structure, the system uses electromagnetic waves to remove moisture through the wall material, maintaining structural integrity while achieving effective dehumidification.
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
This system provides a non-invasive, effective, and economical solution for dehumidifying walls of any structure by dynamically adjusting the electromagnetic field to match the wall's composition, enhancing flexibility and efficiency in moisture removal.
Implementation Method 1
a generator (2) of a magnetic or electromagnetic field (E) essentially consisting of a power stage (3), for example FET amplifiers, connected to an antenna (4) for emitting and targeting the field (E) toward the wall structure to be dehumidified
Implementation Method 2
dehumidification techniques using emission of electromagnetic waves are also known, for example using microwave or other frequencies selected in a more or less arbitrary way, which carry out simultaneously the desalination of masonry walls by acting directly on the ions or the salts dissolved in water
Data Source
Figure 1
AI summary
A wall dehumidification system comprises a generator (2) for a magnetic or electromagnetic field (E) to be directed toward a wall structure to be dehumidified, means (5) for voltage powering the generator (2), an electronic control unit (6) of the generator (2) having a driving circuit (7) supplied by powering means (5) and adapted to send to the generator (2) a frequency driving signal (S) for generating the field (E), impulsive adjusting means (8) adapted to control the driving circuit (7) for generating a pulse-type driving signal (S) for emitting an impulsive field (E) with variable frequency. The adjusting means (8) comprise a programmable clock generator (9) adapted to generate a sequence of a impulsive signals (S) having fixed width at different frequencies inside the range and a programmable timer (10) adapted to define the duty cycle of each impulsive signal (S).