Heat Treatment Valve Arrangement for Variable Capacity Operation
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Solution Overview
Problem
Heat treatment apparatuses, such as tubular heat exchangers, are difficult to design for flexibility in operating at different capacities without compromising product quality, leading to inefficiencies in energy consumption and increased product losses when running at reduced capacities.
Innovation Solution
A method using a valve arrangement that configures the order in which product passes through sections of a heat treatment apparatus, allowing for operation at full and half capacities without negatively affecting product quality, by redirecting heat transfer media and utilizing identical valve arrangements in different modes to optimize energy use and section functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a heat treatment apparatus is designed for fixed capacity operation, then energy efficiency is improved at that capacity, but flexibility to operate at different capacities deteriorates
Solution Approach 1:
The heat treatment apparatus employs variable speed pumps that can dynamically adjust their operating speed to match different production capacities. The pump system transitions from fixed-speed operation to variable-speed control, allowing the apparatus to efficiently operate across a range of capacities from 50% to 100% of maximum capacity by matching pump output to actual processing requirements.
Solution Approach 2:
The invention changes the operational parameters of the heat treatment apparatus by implementing variable speed control of pumps. This allows continuous adjustment of flow rate and processing parameters to optimize energy efficiency at different capacity levels. The system can modify pump speed, flow rate, and processing time parameters to maintain optimal energy efficiency regardless of operating capacity.
2Ease of manufacture
If a heat treatment apparatus is designed with fixed sections in a fixed order, then manufacturing simplicity is improved, but adaptability to different capacities deteriorates
Solution Approach 1:
The apparatus introduces dynamic reconfigurability through valve arrangements that can change the flow path order through heating sections. The valve system allows the product flow to be redirected through different sequences of heating sections based on the required capacity, enabling the same physical apparatus to adapt to different operating conditions without physical reconfiguration or complex manufacturing.
Solution Approach 2:
The heating sections are designed to serve multiple functions through different flow path configurations. The same physical heating sections can be arranged in different sequences to handle different capacity requirements, making each section universally applicable across multiple operating modes. This multi-functionality is achieved through the valve arrangement that redirects flow without requiring duplicate sections for different capacities.
3Productivity
If a heat treatment apparatus runs at reduced capacity without reconfiguration, then productivity is reduced, but energy consumption remains high
Solution Approach 1:
The system dynamically changes operational parameters including pump speed, flow rate, and heating section configuration based on the target production capacity. When operating at reduced capacity (e.g., 50%), the pump speed is reduced proportionally, and the valve arrangement reconfigures the flow paths to optimize residence time and heat transfer efficiency, ensuring energy consumption scales appropriately with productivity levels rather than remaining at full-capacity levels.
4Device complexity
If a heat treatment apparatus lacks flexible components, then device complexity is reduced, but product quality consistency at different capacities deteriorates
Solution Approach 1:
The valve arrangement provides dynamic control over product flow paths through different heating sections. This dynamic reconfiguration capability ensures that product quality parameters such as temperature profiles and residence times can be maintained consistently across different operating capacities. The valves enable precise control of flow distribution to match heating capacity with actual production requirements, preventing both under-processing and over-processing conditions that would compromise quality.
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
Enables efficient energy use and consistent product quality across varying capacities, reducing production downtime and product losses by allowing seamless transitions between full and half capacities without compromising product properties.
Implementation Method 1
The heat treatment apparatus is used for heat treating a product in a number of sections. The number of sections comprises a first heating section, and a second heating section
Implementation Method 2
A method using a valve arrangement that configures the order in which product passes through sections of a heat treatment apparatus, allowing for operation at full and half capacities without negatively affecting product quality, by redirecting heat transfer media
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
A valve arrangement (602, 604) comprising a number of valves (602a-602d, 604a-604d) is provided. The valve arrangement (602, 604) is configured to be in a first mode and a second mode. In the first mode sections (606, 608, 610, 612, 614, 616, 618, 620, 622, 624) in a heat treatment apparatus (600) are passed by a product in a first order, and in the second mode the sections are passed in a second order. Since the first order is different from the second order, the first order can be used for full capacity production and the second order can be used for half capacity production.