Laundry Dryer Fluid Diffuser with Cavity for Air Bubble Removal
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Solution Overview
Problem
Conventional laundry devices face efficiency issues due to impurities like fluff accumulating on the evaporator, which reduces the effectiveness of the heat exchange mechanism during the drying process.
Innovation Solution
A laundry device with a collection container below the evaporator, a pumping system to flush impurities using a fluid diffuser, and a controlled pump-out mechanism to efficiently remove impurities from the evaporator and condenser.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an evaporator is provided to reduce humidity in the drying process, then drying efficiency is improved, but impurities accumulate on the evaporator reducing heat exchange effectiveness
Solution Approach 1:
The system uses itself to clean itself by pumping condensed water back through the diffuser onto the evaporator surface, creating a self-cleaning mechanism that removes impurities without external intervention
Solution Approach 2:
The system uses hydraulic flow of pumped water through the diffuser to physically flush impurities from the evaporator surface, utilizing fluid dynamics to solve the accumulation problem
2Ease of operation
If water is pumped through a diffuser to flush impurities, then evaporator cleaning is improved, but air bubbles in the pumped water can block and hinder water flow
Solution Approach 1:
The system extracts and removes air bubbles from the pumped water using a separator before the water reaches the diffuser, preventing bubble-induced flow blockages
Solution Approach 2:
The system performs preliminary degassing of the water in the separator before the water is delivered to the diffuser, preventing potential flow problems before they occur
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 solution effectively flushes impurities from the evaporator and condenser, maintaining efficient operation of the heat exchange mechanism and enhancing drying performance.
Implementation Method 1
the evaporator is configured to cool down the air supplied by the air inlet to condense water at the evaporator during cooling of the air
Implementation Method 2
the laundry device comprises a pump configured to pump the water collected in the collection container via the pumping line into the at least one fluid diffuser
Implementation Method 3
the at least one fluid diffuser is configured to feed the pumped water onto the evaporator to flush the impurities, in particular the fluff, from the evaporator into the collection container
Implementation Method 4
a cavity is formed in the outlet section in a top wall of the flow channel, wherein the cavity extends over a first width of the flow channel between two side walls of the flow channel, wherein the cavity is configured to receive air bubbles accommodated in the pumped water
Implementation Method 5
The air bubbles accommodated in the pumped water may dissolve at the cavity in order to fill at least a part of the volume of the cavity with air from the air bubbles
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
Laundry device (100) with at least one fluid diffuser (115-1, 115-2) comprising an inner flow channel (121) for conducting the pumped water. The flow channel (121) comprises an inlet section (129), an intermediate section (131) and an outlet section (133). Pumped water enters the at least one diffuser (115-1, 115-2) through the inlet section (129), flows through the intermediate section (131) along a flow direction (121-1) and exits the at least one diffuser (115-1, 115-2) through the outlet section (133). A cavity (123) is formed in the outlet section (133) in a top wall (149) of the flow channel (121). The cavity (123) extends over a first width (141) of the flow channel (121) between two side walls (122-1, 122-2) of the flow channel (121). The cavity (123) is configured to receive air bubbles accommodated in the pumped water.