Air curtain generating device
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Solution Overview
Problem
Conventional air curtain generating devices have limitations in air blocking performance, leading to inefficiencies in air leakage and heat escape from drying chambers.
Innovation Solution
The device incorporates pairs of air jet and suction units aligned vertically, with air guides directing air flow inward and outward to enhance air curtain generation, and adjustable shutters to control air flow, minimizing leakage and optimizing air flow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional air jet outlets are placed opposite each other on both sides of the inlet/outlet, then the device structure is simple, but the air blocking performance is insufficient
Solution Approach 1:
The air jet units are divided into multiple pairs arranged vertically along the inlet/outlet, with each pair consisting of jet and suction units. This segmentation allows targeted air flow control at different heights, improving air blocking performance by addressing leakage patterns at various levels rather than using a single conventional jet outlet configuration.
Solution Approach 2:
Different air guide configurations are applied to different regions: first air guides incline air flow inward for upper air jet units, while second air guides incline air flow outward for lower air jet units. This local differentiation optimizes air curtain generation at each height, enhancing overall air blocking performance while maintaining structural feasibility.
2Loss of energy
If air jet units eject air horizontally without guidance, then the device structure is simple, but air flow direction control is insufficient leading to heat escape
Solution Approach 1:
Air guides serve as intermediary components between the air jet units and the surrounding environment. These guides actively direct the ejected air flow at specific angles (inward for upper units, outward for lower units) to optimize air curtain formation and prevent heat escape, transforming uncontrolled horizontal jet flow into directed protective air curtains.
3Reliability
If fixed air flow volume is used, then the device operation is simple, but air blocking performance cannot be optimized according to workpiece presence
Solution Approach 1:
The air flow system transitions from fixed to dynamic control through adjustable shutters installed on each air jet unit. These shutters enable real-time adjustment of air flow volume based on workpiece presence and drying requirements, optimizing air blocking performance adaptively while maintaining operational simplicity through automated or manual shutter adjustment.
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 configuration significantly improves air blocking performance, reducing air leakage and enhancing drying efficiency by effectively guiding air flow and adjusting air volume according to the presence of a workpiece.
Implementation Method 1
a plurality of pairs of air jet units and air suction units laterally opposite each other on both sides of an inlet/outlet of a drying chamber, the plurality of the pairs being aligned up and down, the air suction units sucking air ejected from the air jet units to generate an air curtain
Implementation Method 2
the air suction units sucking air ejected from the air jet units to generate an air curtain
Implementation Method 3
a first air guide provided to the air jet units in an upper part of the inlet/outlet to guide air ejected from the air jet units in a direction inclined inward of the drying chamber relative to the lateral direction of the inlet/outlet
Implementation Method 4
a second air guide provided to the air jet units in a lower part of the inlet/outlet to guide air ejected from the air jet units in a direction inclined outward of the drying chamber relative to the lateral direction of the inlet/outlet
Data Source
AI summary
An air curtain generating device includes: a plurality of pairs of an air jet unit and an air suction unit placed opposite each other on both sides in a lateral direction of an inlet/outlet of a drying chamber, the plurality of the pairs being aligned up and down, the air suction units sucking air ejected from the air jet units to generate an air curtain; a first air guide provided to the air jet units in an upper part of the inlet/outlet to guide air ejected from the air jet units in a direction inclined inward of the drying chamber relative to the lateral direction of the inlet/outlet; and a second air guide provided to the air jet units in a lower part of the inlet/outlet to guide air ejected from the air jet units in a direction inclined outward of the drying chamber relative to the lateral direction.