Air curtain system
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Solution Overview
Problem
Existing air curtain systems face challenges with inefficient air flow control and increased structural depth due to wide nozzle designs, leading to potential backflow and turbulence, which impede laminar airflow and increase energy consumption.
Innovation Solution
The air curtain system employs cylindrical segment-shaped round plates of varying widths, combined with straight and angled edge pieces, and air guide plates to create a narrow nozzle body with optimal sealing and minimal depth, ensuring effective air flow control and prevention of backflow, while maintaining a laminar flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wide nozzle body walls are used to prevent backflow, then backflow prevention is improved, but the overall depth of the housing increases
Solution Approach 1:
The nozzle body is divided into multiple functional segments: cylindrical segment-shaped round plates for sealing, air guide plates for flow direction, and edge pieces for positioning. This segmentation allows each component to perform its specific function efficiently without requiring excessive width, thereby preventing backflow while maintaining compact housing depth.
Solution Approach 2:
The solution transitions from preventing backflow through width (horizontal dimension) to preventing backflow through three-dimensional spatial arrangement and angular positioning of the nozzle body. The cylindrical segment-shaped plates create sealing surfaces in multiple dimensions, allowing effective backflow prevention with minimal housing depth.
2Adaptability or versatility
If nozzle body is adjusted at large angles, then air curtain coverage is improved, but backflow prevention becomes insufficient
Solution Approach 1:
The nozzle body is designed to be pivotable about its longitudinal axis, allowing dynamic adjustment of the air curtain angle to match different door openings and traffic patterns. The cylindrical segment-shaped round plates maintain effective sealing throughout the range of motion, ensuring backflow prevention is maintained even at large adjustment angles.
Solution Approach 2:
The system allows changing the operational parameters by pivoting the nozzle body to different angles. The cylindrical segment-shaped plates are designed with specific geometric parameters (segment angles, radii) that maintain sealing effectiveness across the full range of motion, enabling both large-angle adjustment and reliable backflow prevention.
3Reliability
If increased structural depth is used to prevent backflow, then backflow prevention is improved, but energy consumption increases due to turbulence
Solution Approach 1:
The air guide plates are strategically positioned to optimize airflow hydraulics within the nozzle body. These plates guide the air flow in a targeted manner, ensuring smooth laminar flow from the blower device through the air outlet opening. This pneumatic optimization prevents turbulence and associated energy losses while maintaining effective backflow prevention through the three-dimensional sealing structure.
4Ease of operation
If multiple guide profiles with different pivot angles are used, then airflow direction control is improved, but device complexity increases
Solution Approach 1:
The cylindrical segment-shaped round plates serve multiple functions simultaneously: they provide sealing surfaces, define the nozzle interior geometry, and work with the pivotable mounting to enable angle adjustment. This multi-functionality eliminates the need for separate guide profiles with different pivot angles, reducing device complexity while maintaining precise airflow direction control through the single pivotable nozzle body assembly.
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 design enhances air flow control, reduces energy consumption, and minimizes structural depth, effectively preventing outside air from entering while maintaining a stable and efficient air curtain.
Implementation Method 1
comprising a housing that has an air inlet opening (28), a blower device, at least one air guide plate and an air outlet opening in a nozzle body pivotably arranged about its longitudinal axis
Implementation Method 2
having two cylindrical segment-shaped round plates (31, 32), wherein in all possible pivoting positions of the nozzle body its interior is shielded from the outside space in order to prevent unwanted backflows of air into the housing
Implementation Method 3
air curtain systems are used to create a barrier of airflow that separates differently conditioned air masses inside and outside, thus preventing exchange, particularly heat exchange
Implementation Method 4
the inevitably occurring turbulence hinders the desired laminar airflow necessary for the 'air process'
Data Source
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AI summary
The invention relates to an air curtain system for generating an air flow serving to shield rooms provided with doors or gates, with a housing that has an air inlet opening and an air outlet opening, a fan device, which is preferably designed as a fan roller, at least one air guide plate and extends over the entire air outlet opening has extending, angle-adjustable lamellae, which are arranged as mutually parallel sheet metal profiles in a nozzle body with an inlet and an outlet opening. According to the invention, it is proposed that the nozzle bodies (24) have two round plates (31, 32) and cover plates (33, 34) arranged at the ends with edge pieces that have the same curvature as the round plates (31, 32), with all possible angle adjustments of the Lamellae (40), the interior of the nozzle body (24) is shielded from the exterior of the housing.