Rotating Hollow-Shaft Heat Exchanger for Textile Laundry Water Heating
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Solution Overview
Problem
The use of steam boilers for heating washing water in industrial textile laundries is inefficient, noisy, and poses safety risks due to potential steam explosions, while also being environmentally unfavorable.
Innovation Solution
A system using a heat exchanger with an axially rotatable hollow shaft and a recirculating heating medium, such as warm water or oil, to efficiently heat washing water without the need for a steam boiler, incorporating temperature sensors and control mechanisms for optimal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a steam boiler is used to heat washing water, then the washing water can be heated to required temperature, but energy consumption increases and safety risks arise due to potential steam explosions
Solution Approach 1:
A heat exchanger is introduced as an intermediary device between the heating source and the washing water. The heat exchanger transfers thermal energy from a heating medium (such as hot water or thermal oil) to the washing water without direct contact, eliminating the safety risks of steam boilers while maintaining effective heating capability.
Solution Approach 2:
The mechanical steam generation system is replaced with a thermal exchange system. Instead of generating steam through combustion and pressure buildup, the system uses controlled heat transfer through a heat exchanger, substituting a dangerous mechanical-thermal system with a safer thermal-only system.
2Temperature
If a steam boiler is used to heat washing water, then the washing water can be heated, but energy consumption increases
Solution Approach 1:
The system implements continuous recirculation of the heating medium through the heat exchanger, maintaining continuous heat transfer to the washing water. This continuous operation eliminates the inefficiencies of intermittent steam boiler operation and optimizes energy utilization throughout the washing process.
Solution Approach 2:
The system changes the operating parameters from high-temperature steam generation to controlled thermal exchange at lower temperatures. By operating the heat exchanger with heating media at optimized temperature ranges and maintaining continuous flow, the system achieves efficient energy transfer with reduced overall energy consumption compared to steam boiler operation.
3Temperature
If a steam boiler is used to heat washing water, then the washing water can be heated, but noise levels increase
Solution Approach 1:
The noisy mechanical steam generation process is replaced with a quiet thermal exchange process. The heat exchanger operates without the combustion noises, pressure release valves, and mechanical movements characteristic of steam boilers, significantly reducing noise pollution in the laundry environment.
4Reliability
If the hollow shaft rotates axially during use, then contamination deposition is prevented, but device complexity increases
Solution Approach 1:
The hollow shaft is designed to rotate axially during operation, transforming from a static to a dynamic component. This rotation prevents contamination from depositing on the internal surfaces by continuously changing the contact points, maintaining heat transfer efficiency without requiring complex cleaning mechanisms.
Solution Approach 2:
The axial rotation of the hollow shaft creates periodic movement that prevents contamination buildup. By continuously rotating the shaft, the system periodically changes which surfaces are exposed to the heating medium, preventing any single area from accumulating contaminants that would reduce heat transfer performance.
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 solution provides a safer, more energy-efficient method for heating washing water, reducing energy consumption by up to 40% and preventing contamination buildup in the heat exchanger, thus enhancing the efficiency and safety of the washing process.
Implementation Method 1
at least one heat exchanger for heating the washing water to be used
Implementation Method 2
By heating the relatively cold washing water to be used in a special heat exchanger using a relatively warm heating liquid
Implementation Method 3
it is necessary to apply a special heat exchanger provided with a hollow shaft which rotates axially during use in order to be able to prevent as far as possible the deposition of contaminants onto the heated hollow shaft
Implementation Method 4
a substantial energy-saving of up to about 40% can in this way be realized. During the washing process the washing water is recirculated in the washing water circuit, wherein the washing water is heated in the heat exchanger
Data Source
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AI summary
The invention relates to a system (1) for heating washing water (6) for use in a textile laundry. The invention further relates to a method for heating washing water for use in a textile laundry, in particular by making use of the system according to the invention.