Variable Speed Cooling Fan Magnetic Drive for Skid-Mounted Compressors
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Solution Overview
Problem
Skid mounted compressor assemblies face excessive fuel consumption and operational costs due to the inability to adjust fan speed independently, as the fan operates at high speeds even in non-extreme temperatures, leading to inefficient cooling and increased energy usage.
Innovation Solution
A magnetic variable speed drive mechanism is integrated into the cooling fan system, allowing the fan speed to be adjusted based on fluid temperature, reducing fuel usage and operating costs by optimizing fan speed according to temperature conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fan operates at high speed continuously to ensure cooling capacity during extreme temperatures, then cooling reliability is improved, but fuel consumption increases
Solution Approach 1:
The patent applies a variable speed drive mechanism that dynamically adjusts the fan speed based on actual temperature conditions. The fan speed is varied through operation of the magnetic variable speed drive dependent upon the temperature of the fluids being cooled, allowing the system to maintain cooling reliability when needed while reducing energy consumption during normal operating conditions.
2Use of energy by moving object
If the fan speed is reduced to minimize fuel consumption, then energy efficiency is improved, but cooling performance deteriorates
Solution Approach 1:
The system incorporates temperature sensing and control mechanisms that provide feedback to the variable speed drive. The speed of the fan is varied through operation of the magnetic variable speed drive dependent upon the temperature of the fluids being cooled, ensuring that cooling performance is maintained when temperatures require it while optimizing energy efficiency during normal conditions.
3Adaptability or versatility
If a hydrostatic clutch mechanism is used to adjust fan speed, then fan speed adjustability is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical adjustment mechanisms with a magnetic variable speed drive. This magnetic drive mechanism provides fan speed adjustability without requiring additional gearing and drive mechanisms, thereby reducing device complexity while maintaining adaptability.
4Measurement precision
If an electrical VFD system is used to control fan speed, then fan speed control precision is improved, but cost increases
Solution Approach 1:
The patent employs a magnetic variable speed drive mechanism that provides effective fan speed control at a lower cost compared to electrical VFD systems. This magnetic drive approach avoids the need for expensive explosion-proof components and enclosures while achieving the necessary control precision for temperature-dependent fan speed adjustment.
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
The magnetic variable speed drive mechanism enables efficient reduction of fan speed to the lowest necessary level, thereby reducing fuel consumption and operating costs while maintaining effective cooling performance.
Implementation Method 1
A magnetic variable speed drive mechanism is integrated into the cooling fan system
Data Source
AI summary
A system and method of a variable speed cooling fan for a skid mounted compressor. A magnetic variable speed clutch is mounted to the cooling fan drive shaft. The clutch mechanism is driven via by a drive pulley on the crankshaft of the engine driving the compressor. The speed of the fan is varied dependent upon the temperature of the fluids being cooled.