Fluid machine system and method for controlling same
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Solution Overview
Problem
In gas compression devices, maintaining balanced operation times and synchronizing maintenance across devices with varying operation times is challenging, leading to uneven wear and potential overheating, which can accelerate component degradation.
Innovation Solution
An operation number control device that individually sets and manages continuous operation times for each fluid machine based on total operation times, ensuring that machines with longer operation times are stopped and cooled while those with shorter times are operated, thereby leveling operation times and preventing premature wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operation number control is performed to level total operation times of multiple fluid machines, then maintenance timing synchronization is improved, but cooling time requirements cannot be satisfied when machines have significantly different operation times
Solution Approach 1:
The patent segments the operation time management into two distinct components: total operation time accumulation for maintenance scheduling and continuous operation time tracking for cooling time management. This segmentation allows independent control of maintenance synchronization and cooling time requirements, resolving the contradiction between leveling operation times and ensuring adequate cooling periods.
Solution Approach 2:
The control device implements feedback mechanisms by continuously monitoring both total operation times and continuous operation times of each fluid machine. Based on this feedback, the system dynamically adjusts operation sequences to ensure that machines with longer continuous operation times are stopped for cooling before being restarted, while still achieving maintenance timing synchronization.
2Productivity
If fluid machines with different operation times are operated to level total operation times, then maintenance synchronization is achieved, but machines with short operation times cannot secure adequate cooling periods
Solution Approach 1:
The control device performs preliminary action by identifying which fluid machine should be stopped next based on both total operation time accumulation and continuous operation time limits. Before a machine is restarted, the system ensures it has been stopped long enough to meet cooling time requirements, preventing premature restart and ensuring adequate cooling periods for all machines regardless of their different base operation times.
3Productivity
If continuous operation is maintained to maximize productivity, then output is improved, but wear degradation accelerates due to insufficient cooling
Solution Approach 1:
The patent implements periodic action by establishing mandatory cooling cycles for each fluid machine. The control device periodically stops machines that have reached their continuous operation time limits, allowing them to cool down before restart. This periodic interruption prevents continuous operation-induced overheating and wear degradation, extending component lifespan while maintaining overall productivity through coordinated operation of multiple machines.
Data Source
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AI summary
There are provided an operation number control device and a method for controlling the same that can level the operation times of the fluid machines, which are connected to the operation number control device. A fluid machine system comprises a plurality of fluid machines, and an operation number control device capable of individually controlling start and stop of the fluid machines. The operation number control device sets a continuous operation time for each of the fluid machines based on total operation times of the fluid machine and other fluid machines. When among fluid machines in operation, there is a fluid machine for which the continuous operation time set for the fluid machine has elapsed and there is a fluid machine at stop, the operation number control device causes the fluid machine at stop to start and causes the fluid machine to stop.