Rotating Disk Capture Device for Droplet Separation in Air Purifiers
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Solution Overview
Problem
Existing air purifiers have complex structures and poor purification effects due to the reliance on filtering devices that fail to effectively separate droplets and pollutants from the air.
Innovation Solution
A capture device with a housing, rotary disks, and a cylinder, where the disks rotate in opposite directions with meshes to create a counteracting effect on air movement, enhancing centrifugal separation of droplets and improving purification efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filtering devices are used to directly purify air, then the purification function is provided, but the structure becomes complicated and the purification effect is poor
Solution Approach 1:
The patent replaces traditional mechanical filtering devices with a hydrodynamic separation system using water flow and centrifugal force. The capture device uses a water seal cavity and rotating capture member to separate droplets from air through physical forces rather than mechanical filters, simplifying the structure while improving purification effectiveness.
Solution Approach 2:
The patent employs hydraulic principles by using water flow through the capture member to capture and separate droplets from the air stream. The water seal mechanism and water-based separation in the capture device utilize fluid dynamics to achieve effective purification without complex mechanical filtering components.
2Reliability
If droplets are not separated from air, then the structure remains simple, but downstream filtering devices bear heavy burden and bacterial growth occurs
Solution Approach 1:
The patent introduces water as an intermediary substance in the capture device to facilitate droplet separation. The water flow acts as a medium that captures droplets from the air stream through adhesion and centrifugal separation, protecting downstream components from droplet contamination and preventing bacterial growth without requiring complex additional structures.
Solution Approach 2:
The patent utilizes the liquid phase properties of water to capture and separate droplets from the air stream. By maintaining water in liquid phase and using its flow characteristics, the system effectively separates droplets through hydrodynamic forces, preventing them from reaching downstream filtering devices and eliminating the conditions for bacterial growth.
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 capture device simplifies the structure while significantly improving air purification by effectively separating droplets and pollutants, reducing the burden on downstream filtering devices and preventing bacterial growth.
Implementation Method 1
the first rotary disk and the second rotary disk rotate in opposite directions and have opposite shearing actions
Implementation Method 2
the inertial force is much larger than that of gas, and then, the droplets will continue to perform a centrifugal movement
Implementation Method 3
the inertial force is much larger than that of gas
Data Source
AI summary
Disclosed are a capture device for purifying air, a purification device, and an air purifier. The capture device for purifying air includes: a housing and a capture assembly. The housing is provided with an air inlet and an air outlet, wherein a cavity, in communication with the air inlet and the air outlet, is defined inside the housing; and the capture assembly is arranged in the cavity, and is located between the air inlet and the air outlet. The capture assembly includes a first rotating disk, a second rotating disk and a cylinder, wherein both the first rotating disk and the second rotating disk are rotatable and rotate in opposite directions; and the cylinder is disposed between the first rotating disk and the second rotating disk.