chiller
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Solution Overview
Problem
Existing chillers require separate filtering lines and DI filters for each cooling-liquid circuit, increasing the size, energy consumption, and costs, which is undesirable for users seeking compact and cost-effective solutions.
Innovation Solution
A chiller design where a shared filtering line with a DI filter is used across multiple cooling-water circuits, connected through a communicating line to maintain constant water levels and control the flow rate, and an electromagnetic valve and conductivity sensor are employed to manage the filtration process, allowing for efficient purification of cooling waters across all circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filtering line and DI filter are provided for each cooling-liquid circuit, then the purity of cooling water in each circuit is improved, but the size of the chiller and energy consumption increase
Solution Approach 1:
The filtering line and DI filter are configured to serve multiple cooling-liquid circuits simultaneously. The filtering line branches from the second supply line of one circuit and connects to the return lines of other circuits, allowing a single filtration system to purify cooling water across multiple circuits, thereby reducing the total number of filters needed and lowering energy consumption while maintaining water purity.
Solution Approach 2:
Multiple cooling-liquid circuits are merged into a shared filtration system. The filtering line integrates with return lines from multiple circuits, and the DI filter processes cooling water that serves multiple heat loads, combining what would traditionally be separate filtration systems into one unified setup, reducing overall size and energy use.
2Reliability
If a filtering line and DI filter are provided for each cooling-liquid circuit, then the purity of cooling water in each circuit is improved, but the size of the chiller increases
Solution Approach 1:
The filtering line and DI filter are configured to serve multiple cooling-liquid circuits simultaneously. The filtering line branches from the second supply line of one circuit and connects to the return lines of other circuits, allowing a single filtration system to purify cooling water across multiple circuits, thereby reducing the total number of filters needed and lowering energy consumption while maintaining water purity.
Solution Approach 2:
Multiple cooling-liquid circuits are merged into a shared filtration system. The filtering line integrates with return lines from multiple circuits, and the DI filter processes cooling water that serves multiple heat loads, combining what would traditionally be separate filtration systems into one unified setup, reducing overall size and energy use.
3Reliability
If separate filtering lines and DI filters are provided for each cooling-liquid circuit, then the stability of device operation is improved, but the cost increases
Solution Approach 1:
The filtering line and DI filter are configured to serve multiple cooling-liquid circuits simultaneously. The filtering line branches from the second supply line of one circuit and connects to the return lines of other circuits, allowing a single filtration system to purify cooling water across multiple circuits, thereby reducing the total number of filters needed and lowering energy consumption while maintaining water purity.
Solution Approach 2:
Multiple cooling-liquid circuits are merged into a shared filtration system. The filtering line integrates with return lines from multiple circuits, and the DI filter processes cooling water that serves multiple heat loads, combining what would traditionally be separate filtration systems into one unified setup, reducing overall size and energy use.
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 design reduces the overall size and energy consumption of the chiller while maintaining effective purification of cooling waters, suppressing the increase in costs and energy usage, and preventing short-circuiting issues.
Implementation Method 1
The filtering line is provided with a deionization filter (DI filter) that removes ionic substances in the cooling water
Implementation Method 2
The refrigeration circuit includes two heat exchangers that are connected in parallel. The heat exchangers are respectively connected to the plurality of cooling-liquid circuits. Therefore, the cooling waters having cooled the devices are subjected to temperature control in the heat exchangers
Data Source
AI summary
A chiller is provided that includes a deionization filter to remove ionic substances in cooling waters, and that is of such a small size as to save energy and costs. The chiller also includes cooling-water circuits, and a refrigeration circuit. The refrigeration circuit includes heat-exchange-path sections. The heat-exchange-path sections include respective heat exchangers. The cooling-water circuits and includes tanks, first supply lines, second supply lines, and return lines. The chiller includes a filtering line branching off from the second supply line of the cooling-water circuit and connected to the return line of the cooling-water circuit. The filtering line is provided with the deionization filter.