Dryer Air Circulation Layout for Uniform Heat Exchanger Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing laundry treatment apparatuses face inefficiencies in heat exchange due to the blower being located in front of the heat exchanger, leading to inconsistent air flow rates and reduced heat exchange efficiency.
Innovation Solution
The blower is positioned between the heat exchanger and the discharge duct, creating negative pressure at the rear side of the heat exchanger, ensuring a constant air flow rate and improving heat exchange efficiency by allowing air to pass through the entire region of the heat exchanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the blower is located in front of the heat exchanger, then the air flow path is simplified, but the air flow rate becomes inconsistent and heat exchange efficiency decreases
Solution Approach 1:
The patent inverts the conventional arrangement by placing the blower behind the heat exchanger instead of in front. This inversion creates negative pressure at the rear side of the heat exchanger, which draws air through the entire heat exchanger region consistently, thereby resolving the contradiction between simplified air flow path and heat exchange efficiency.
2Volume of moving object
If the blower is located in front of the heat exchanger, then the apparatus structure is compact, but the air flow rate consistency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the blower positioned behind the heat exchanger creates negative pressure that continuously draws air through the heat exchanger. This negative pressure feedback ensures consistent air flow rate through the entire heat exchanger region, maintaining stable air flow composition despite the changed structural arrangement.
3Volume of stationary object
If the blower is located in front of the heat exchanger, then the installation space is reduced, but the heat exchange performance deteriorates
Solution Approach 1:
By inverting the blower position to behind the heat exchanger, the patent maintains a compact installation space while dramatically improving heat exchange performance. The negative pressure generated by this inverted arrangement ensures air passes through the entire heat exchanger region, maximizing heat exchange efficiency without increasing apparatus volume.
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 enhances the drying efficiency of the laundry treatment apparatus by maintaining consistent air flow and increasing heat exchange efficiency, minimizing the apparatus's volume, and allowing for automated cleaning of the filter device.
Implementation Method 1
a heat exchanger placed in the circulation path
Implementation Method 2
heating the air moved by the blower
Implementation Method 3
creating negative pressure at the rear side of the heat exchanger, ensuring a constant air flow rate
Data Source
AI summary
A laundry treatment apparatus may include a cabinet defining an external appearance of the apparatus, the cabinet having a laundry opening, a laundry accommodation module provided within the cabinet to receive laundry introduced through the laundry opening, a suction duct into which interior air from the laundry accommodation module may be introduced, a discharge duct from which the air is discharged into the laundry accommodation module, a connection duct connecting the suction duct and the discharge duct to each other, a heat exchanger provided in the connection duct, and a blower provided between the heat exchanger and the discharge duct to circulate the interior air of the laundry accommodation module.