Multi-Compressor Fluid Distribution Using Pressure Equalization
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Solution Overview
Problem
Multi-compressor HVAC systems face disproportionate fluid distribution issues, leading to inadequate lubrication and reduced performance and lifespan due to mechanical devices' wear and maintenance costs.
Innovation Solution
A plumbing assembly with a suction equalizing tube and pressure differential system that fluidly couples multiple compressors, creating desired pressure drops to maintain balanced fluid levels and lubrication, using an inlet tube and distribution section with defined flow paths to achieve uniform fluid distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical devices such as flow restrictors are used to regulate fluid flow to each compressor, then fluid distribution can be controlled, but the devices are subject to wear and increased maintenance expenses
Solution Approach 1:
The patent removes mechanical flow restrictors from the system entirely and replaces them with a suction equalizing tube that uses pressure differential principles to achieve balanced fluid distribution without moving parts or mechanical components that wear
Solution Approach 2:
The invention substitutes mechanical flow regulation devices with a pressure-based fluid dynamics system using the suction equalizing tube and plenum chamber, replacing mechanical control with physical pressure equalization
2Productivity
If multi-compressor systems operate over larger capacity, then system performance increases, but disproportionate fluid distribution occurs between compressors
Solution Approach 1:
The suction equalizing tube connects to a plenum chamber that equalizes pressure across all compressor suction lines, creating a common pressure potential that ensures balanced fluid distribution to each compressor regardless of their individual operating conditions or positions in the system
Solution Approach 2:
The suction equalizing tube and plenum chamber act as an intermediary component between the refrigerant distribution system and multiple compressors, mediating fluid flow to ensure equal pressure and balanced distribution to each compressor outlet
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 solution ensures balanced fluid distribution and lubrication across compressors, enhancing performance and extending their service life by maintaining a prescribed liquid level and reducing maintenance expenses.
Implementation Method 1
A pressure differential between the at least two compressors is created so as to facilitate maintenance of a desired fluid level in the at least two compressors
Implementation Method 2
A pressure drop for the at least two compressors that corresponds to the liquid-level differences is determined
Data Source
AI summary
A compressor system includes at least two compressors. A suction equalizing tube fluidly couples the at least two compressors. A plumbing assembly fluidly couples to the first compressor and the second compressor. The plumbing assembly comprises an outlet to each compressor of the at least two compressors. A pressure differential between the at least two compressors is created so as to facilitate maintenance of a desired fluid level in the at least two compressors.