Fire Extinguishing Adding System with Logarithmic Spiral Motor
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Solution Overview
Problem
The components of existing adding systems for fire-extinguishing units vibrate during operation, leading to mechanical loads that can cause cracks and leakage, reducing operational reliability. Additionally, high viscosity extinguishing agent additives create high flow resistance, requiring high pressures that stress system components and reduce efficiency.
Innovation Solution
The adding system incorporates a water motor with a rotor and paddles designed to follow a logarithmic spiral trajectory, reducing mechanical stress and vibrations. Through slots in the drainage housing of the water motor minimize flow resistance and pressure loss. The adding pump has an inlet aligned parallel to the piston movement, reducing flow resistance for high-viscosity additives, and includes an integrated relief valve to protect against excessive pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adding system components are used, then the system can operate with standard design, but vibrations and mechanical loads cause cracks and leakage reducing reliability
Solution Approach 1:
The patent applies curved surfaces and optimized geometric shapes to pump components and housing structures to distribute mechanical stresses more evenly, reducing vibration-induced fatigue and preventing crack formation in high-stress areas
2Reliability
If high viscosity extinguishing agent additives are used, then effective fire suppression is achieved, but flow resistance increases requiring high pressures that stress system components
Solution Approach 1:
The patent modifies operational parameters including pump speed, discharge pressure, and flow rate to optimize the delivery of high viscosity additives, maintaining effective fire suppression while preventing excessive pressure buildup that would stress system components
Solution Approach 2:
The patent utilizes hydraulic principles to design pump systems that efficiently handle high viscosity fluids, incorporating pressure regulation mechanisms and flow optimization to deliver required additive quantities without creating dangerous pressure levels
3Productivity
If high pressures are applied to overcome flow resistance, then high viscosity additives can be pumped, but system components experience increased stress and efficiency decreases
Solution Approach 1:
The patent incorporates variable speed drives and adjustable pressure regulation systems that dynamically adapt pump operation to actual flow requirements, delivering high viscosity additives effectively while minimizing energy waste from excessive pressure application
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 improved design reduces mechanical stress and vibrations in the water motor, enhancing operational reliability and efficiency by minimizing flow resistance and pressure loss. The system maintains a consistent admixture rate without external energy sources, ensuring reliable operation even with high-viscosity additives.
Implementation Method 1
a motor (1), in particular a water motor, able to be driven by a flow of extinguishing agent
Implementation Method 2
paddles (6, 7) which are designed to follow a logarithmic spiral trajectory
Implementation Method 3
Through slots in the drainage housing of the water motor minimize flow resistance and pressure loss
Implementation Method 4
includes an integrated relief valve to protect against excessive pressure
Data Source
AI summary
An adding system for fire-extinguishing units includes a motor, which can be driven by an extinguishing agent stream, an adding pump, which can be driven by the motor, an adding line, and an extinguishing agent additive line. The outer wall of the working chamber of the motor is in the form of a rotation motor, which can also have the shape of a logarithmic spiral. Furthermore, the wall of the drainage housing of the motor, which is in the form of a rotation motor, can have a through-slot for letting the extinguishing agent in and/or out. Moreover, the inlet of the adding pump can be arranged such that the extinguishing agent additive can flow into the adding pump substantially parallel to the movement direction of the pistons of the adding pump. Finally, the adding pump can have an integrated relief valve.