Liquid Ring Pump Drainage Control for Clean Operating Liquid
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Solution Overview
Problem
Liquid ring pumps become contaminated over time due to particulate matter suspension or substance dissolution in the operating liquid, leading to reduced efficiency and reliability.
Innovation Solution
A system comprising a liquid ring pump, a separator, and a valve module with controlled drainage lines and valves, managed by a controller, to periodically drain and refill operating liquid, ensuring contamination removal and maintenance of cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the liquid ring pump operates continuously, then productivity is improved, but the operating liquid becomes contaminated with particulate matter and dissolved substances, reducing reliability
Solution Approach 1:
The system implements periodic draining and refilling of the operating liquid through automated valve control. The controller opens drainage valves at predetermined intervals to remove contaminated liquid and closes them to allow fresh liquid to refill the system, maintaining cleanliness while enabling continuous operation
Solution Approach 2:
The system automatically monitors and manages its own maintenance needs through the controller, which detects when draining is required and autonomously controls the drainage and refilling processes without external intervention, ensuring the operating liquid remains clean during continuous operation
2Reliability
If the operating liquid is drained and refilled frequently, then the operating liquid cleanliness is improved, but the system complexity increases due to additional valves and control mechanisms
Solution Approach 1:
The valve module serves multiple functions: it controls drainage during operation, manages refilling from the reservoir, and can be integrated with the existing pump structure. This multi-functionality reduces the need for separate dedicated components for each maintenance task
Solution Approach 2:
The controller acts as an intermediary that coordinates between the drainage valves, refilling mechanism, and pump operation. It centralizes the control logic and automates the timing and sequencing of drainage and refilling actions, simplifying the overall system management
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 system effectively maintains the operating liquid's cleanliness, enhancing the efficiency and reliability of the liquid ring pump by regularly removing contaminants and replenishing the liquid.
Implementation Method 1
a separator coupled to the exhaust outlet of the liquid ring pump and configured to separate the exhaust fluid received from the liquid ring pump into gas and liquid
Implementation Method 2
the impeller and shaft are positioned eccentrically within the chamber of the liquid ring pump... results in a cyclic variation of the volumes enclosed between adjacent vanes of the impeller and the liquid ring
Data Source
AI summary
A system comprising: a liquid ring pump; a separator coupled to an exhaust outlet of the liquid ring pump; a valve module, the valve module being coupled to the separator via a first drainage line and coupled to the liquid ring pump via a second drainage line, the valve module comprising a first valve arranged along the first drainage line and a second valve arranged along the second drainage line; and a controller configured to control the valves.