Plant purification device and control method thereof
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plant purification devices face inefficiencies in removing volatile organic pollutants (VOCs) due to the contradiction between the need for a filter to protect plants from high contaminant concentrations and the reduction in air speed, which hampers effective purification.
Innovation Solution
A plant purification device with a physicochemical purification unit and a control module that adjusts air speed and contaminant concentration, using a filter with an adjustable shutter and fan to ensure optimal air speed for plant purification, preventing plant damage from high contaminant concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter device is disposed at an air inlet to prevent plant bodies from being damaged by contaminants with high concentration, then plant protection is improved, but air speed of gas in contact with plants is greatly reduced
Solution Approach 1:
The purification system is divided into two independent units: a physicochemical purification unit (filter) and a plant purification unit. The filter processes air separately before air enters the plant chamber, allowing the filter to handle contaminant removal while the plant chamber maintains optimal air speed for purification without being burdened by filter resistance.
Solution Approach 2:
The filter device is extracted from the plant chamber and placed in a separate physicochemical purification unit. This separation allows the filter to operate independently at its optimal resistance level while the plant chamber operates independently at its optimal air speed, eliminating the direct trade-off between filtration and air speed.
2Productivity
If the flow rate of gas containing contaminants is increased to improve purification efficiency, then plant purification efficiency is improved, but plant bodies may be damaged by contaminants with high concentration
Solution Approach 1:
The physicochemical purification unit (filter) performs preliminary purification of contaminants before air enters the plant purification chamber. This preliminary action removes harmful contaminants in advance, allowing high flow rates to be used in the plant chamber for efficient purification without exposing plants to damaging contaminant concentrations.
Solution Approach 2:
The filter acts as an intermediary between the contaminated air source and the plants. It mediates by removing harmful contaminants while allowing clean air to pass through, enabling high air flow rates to reach the plants without the harmful effects of contaminants.
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 device ensures optimal air speed for plant purification while protecting plants from high contaminant concentrations by adjusting the physicochemical purification unit's efficiency and air speed, enhancing purification effectiveness.
Implementation Method 1
a filter and an adjustment device for adjusting amount of air passing through the filter are disposed at an air inlet of the physicochemical purification chamber
Implementation Method 2
a fan for driving gas to be supplied into the plant purification chamber from the physicochemical purification chamber
Implementation Method 3
Studies have demonstrated that plants have a better purification effect on VOCs
Data Source
AI summary
The present disclosure relates to a plant purification device and control method thereof. A plant purification device includes a plant purification unit and a physicochemical purification unit with adjustable use efficiency, wherein, the physicochemical purification unit is communicated with the plant purification unit; the plant purification device further includes a control module, a contaminant concentration sensor for detecting concentration of indoor contaminants, an air speed detector for detecting air speed of gas entering the plant purification unit, and a fan for driving gas to be supplied into the plant purification unit from the physicochemical purification unit, wherein, the control module is used to adjust the use efficiency of the physicochemical purification unit according to the concentration of indoor contaminants, adjust rotating speed of the fan according to a detection signal of the air speed detector, and further control the air speed of the gas entering the plant purification unit.