Boiler System Electrolysis Temperature Control
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Solution Overview
Problem
The efficiency of water electrolysis devices and boiler systems using natural energy power generation is affected by fluctuations in natural energy production, leading to decreased system efficiency and heat loss.
Innovation Solution
A boiler system that includes a water electrolysis device, a boiler, and a heat exchange device, where the system controls the temperature of the electrolysis target water by exchanging heat between the water electrolysis device and the boiler, using makeup water or steam as a heat medium based on temperature conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power storage device is repeatedly started and stopped, then the natural energy power generation can be utilized flexibly, but the temperature of the water electrolysis device or fuel cell decreases, degrading system efficiency
Solution Approach 1:
The invention converts the harmful effect of temperature decrease during startup/stopping into a beneficial heating process. The fuel cell's exhaust heat, which would normally be wasted, is utilized to heat the water electrolysis device during startup, transforming energy loss into a useful function that maintains system efficiency.
Solution Approach 2:
The invention merges the heating function and cooling function into a single integrated heat exchange system. The heat exchange device can operate in reverse direction to provide either heating or cooling to the water electrolysis device, combining multiple functions into one system component.
2Productivity
If the water electrolysis device generates excessive heat during operation, then electrolysis can proceed efficiently, but the temperature must be controlled within a predetermined range, requiring cooling
Solution Approach 1:
The invention implements a feedback control system where the control device monitors the temperature of the water electrolysis device and automatically adjusts the heat exchange operation. When temperature exceeds the predetermined range, the system activates cooling; when temperature is too low, it activates heating, maintaining optimal operating conditions continuously.
Solution Approach 2:
The invention changes the operational parameters of the heat exchange device based on temperature conditions. By reversing the flow direction of the heat medium in the heat exchange device, the system can switch between heating mode and cooling mode, adapting to different temperature requirements during electrolysis operation.
3Loss of energy
If heat is not effectively utilized from the water electrolysis device, then temperature control is simpler, but energy efficiency is reduced
Solution Approach 1:
The invention makes the heat exchange device multi-functional by enabling it to perform both heating and cooling operations, and to serve both the water electrolysis device and the boiler system. This universal approach allows one device to handle multiple thermal management requirements, improving energy efficiency without proportionally increasing system complexity.
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 maintains high electrolysis efficiency and enhances heat efficiency of the boiler system, even with fluctuating natural energy power generation, by effectively utilizing heat and controlling temperature.
Implementation Method 1
a heat exchange device that exchanges heat between the electrolysis target water and a heat medium
Implementation Method 2
a water electrolysis device that electrolyzes electrolysis target water with electric power supplied from a natural energy power generation device to generate hydrogen and oxygen
Implementation Method 3
a boiler that heats makeup water by combusting fuel to generate steam
Data Source
AI summary
A boiler system (1) according to one aspect of the present invention includes a water electrolysis device (20) that electrolyzes electrolysis target water with electric power supplied from a natural energy power generation device (10) to generate hydrogen and oxygen, a boiler (30) that heats makeup water by combusting fuel to generate steam, a heat exchange device (40) that exchanges heat between the electrolysis target water and a heat medium, and a control device (70) having a cooling controller (71) that cools the electrolysis target water by supplying the makeup water as the heat medium to the heat exchange device when a preset cooling start condition is satisfied.