Alkali Hydroxide Electrolytic Cell Cooling System
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Solution Overview
Problem
Conventional two-chamber gas diffusion electrode electrolytic baths face challenges in maintaining uniform operating temperatures among electrolytic cells, leading to inefficient operation and increased energy consumption due to differences in voltage and temperature regulation.
Innovation Solution
The implementation of flow passages with a coolant system that allows for individual adjustment of coolant flow rates in each electrolytic cell or group of cells, ensuring regulated electrolytic temperatures and improved current efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a two-chamber gas diffusion electrode electrolytic bath is used to simplify the structure, then the device complexity is reduced, but the temperature uniformity among electrolytic cells cannot be maintained
Solution Approach 1:
The invention divides the cooling system into separate flow passages for each electrolytic cell or group of cells, allowing independent temperature control. This segmentation enables targeted cooling to maintain uniform temperatures across all cells while preserving the simplified two-chamber structure.
Solution Approach 2:
The invention implements local cooling by providing dedicated flow passages and coolant supply to each electrolytic cell or group of cells. This allows different cooling rates for different cells based on their specific thermal conditions, achieving temperature uniformity without complicating the overall device structure.
2Productivity
If individual temperature regulation is implemented for each electrolytic cell, then the current efficiency is improved, but the device complexity increases
Solution Approach 1:
The invention combines multiple flow passages into a unified cooling system that can be controlled centrally or in groups. By merging the cooling function into an integrated system with shared coolant supply, the invention achieves individual cell temperature regulation without proportionally increasing overall device complexity.
Solution Approach 2:
The invention implements dynamic temperature regulation by allowing adjustable coolant flow rates to each electrolytic cell or group of cells. This dynamic control enables the system to adapt to varying thermal conditions and optimize current efficiency while maintaining manageable system complexity through flexible rather than fixed regulation mechanisms.
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 approach enables uniform temperature regulation across electrolytic cells, enhancing current efficiency and maintaining optimal operating conditions, thereby reducing energy consumption and extending equipment durability.
Implementation Method 1
an anode chamber having an anode and a cathode chamber having a gas diffusion electrode are separated with an ion-exchange membrane
Implementation Method 2
flow passages provided to each of the electrolytic cells, a coolant for cooling the electrolytic cells passing through the flow passages
Implementation Method 3
a gas diffusion electrode in the cathode chamber... smooth supply of oxygen gas to an electrode reaction surface
Data Source
AI summary
Apparatus for producing alkali hydroxide and method for operating apparatus for producing alkali hydroxide are provided. A cooling chamber through which a coolant can pass is constructed by placing a separation wall in a cathode chamber on a side opposite to an ion-exchange membrane, and a flow rate adjuster, such as manual valves, which can adjust the supply flow rate of the coolant is placed in each unit cell. The electrolytic temperature of each unit cell is regulated at an optimum operating temperature depending on the current density by adjusting the flow rate of the coolant without individually adjusting the flow rate of salt water supplied to the unit cell or the concentration of the salt water.