Air Shower Room Control for Full-Body Dust Removal
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Solution Overview
Problem
Air shower rooms in clean rooms or dust-free workshops face inefficiencies due to user posture affecting cleaning coverage, with blind spots and inadequate dust removal, especially when multiple people are present, leading to contamination.
Innovation Solution
An air shower room with a sensing mechanism to detect user arm position, controlling air supply and exhaust apparatuses to ensure thorough cleaning, including adjustable air ports and doors, and a movable floor to collect dust, ensuring comprehensive cleaning and minimizing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the air shower room uses fixed air supply ports and operates continuously, then the cleaning coverage is limited by user posture creating blind spots, but the system structure is simple
Solution Approach 1:
The air supply ports are made movable along guide rails instead of being fixed, allowing dynamic adjustment of port positions to track and clean different body parts of the user. This dynamic configuration eliminates blind spots caused by fixed port positions and user posture limitations.
Solution Approach 2:
Sensing mechanisms detect user presence and arm positions to provide feedback to the control system. The controller adjusts air supply port positions and operation timing based on this feedback, ensuring comprehensive cleaning coverage while avoiding unnecessary operation when no user is present.
2Productivity
If the air shower room operates continuously to ensure thorough cleaning, then cleaning efficiency is high, but energy consumption increases
Solution Approach 1:
The air shower room operates periodically rather than continuously. The sensing mechanism detects user presence and triggers air supply only during relevant periods when users are present and need cleaning. This periodic operation maintains high cleaning efficiency while significantly reducing energy consumption during idle periods.
Solution Approach 2:
The sensing mechanism automatically detects user presence and initiates cleaning operation without manual intervention. The system serves itself by monitoring its own operational needs and activating only when required, optimizing both cleaning efficiency and energy usage.
3Productivity
If multiple persons are accommodated in the air shower room, then the cleaning capacity increases, but the cleaning coverage per person decreases due to mutual blocking
Solution Approach 1:
The air shower room is divided into multiple air supply ports positioned at different locations and heights. Each port can be independently controlled and positioned to target specific body parts of different users. This segmentation allows simultaneous effective cleaning of multiple persons even when they are positioned close together.
Solution Approach 2:
The movable air supply ports can dynamically adjust their positions to accommodate different user configurations. When multiple users are present, the controller coordinates multiple ports to clean different users simultaneously, maintaining effective cleaning coverage per person while increasing overall cleaning capacity.
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
Enhances cleaning efficiency by eliminating blind spots and reducing dust entry into clean areas, ensuring effective contamination control through adaptive operation based on user posture and position.
Implementation Method 1
The sensing mechanism comprises at least one sensing unit which includes a transmitter and a receiver. The transmitter is disposed at one side of the chamber to transmit an optical signal to the receiver, and the receiver is disposed at the other side of the chamber to receive the optical signal transmitted by the transmitter.
Implementation Method 2
an air supply apparatus operable to supply air to the chamber and comprising two air supply ports disposed at two opposite sides of the chamber
Implementation Method 3
an air exhaust apparatus operable to exhaust air from the chamber and comprising two air exhaust ports each disposed under a respective one of the two air supply ports
Data Source
AI summary
Disclosed is an air shower room. The shower room comprises a chamber, an air supply apparatus, an air exhaust apparatus, a sensing mechanism and a controller. The sensing mechanism is disposed at a height inside the chamber and operable to detect presence of the user's arm at the height. The height is chosen such that the user has to raise his arm such that the presence of the arm at the height can be detected by the sensing mechanism. The controller is configured to control operations of the air supply apparatus and the air exhaust apparatus based on the detection by the sensing mechanism. Also disclosed is a dust-free workshop.