Fire Hose Pressure Cartridge for Upward Thrust Control
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Solution Overview
Problem
Firefighters face challenges in controlling high-pressure firefighting water discharge, leading to equipment handling difficulties and safety risks due to upward force against gravity, which results in detachment and potential accidents.
Innovation Solution
A discharge pressure adjustment cartridge combined with a fire hose pressure relief valve, featuring a nozzle system that divides incoming water pressure into two streams, adjusting the discharge pressure to counteract upward force and allow easier handling by applying force in the gravity direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-pressure firefighting water is discharged to improve water discharging distance and density, then the firefighting effectiveness is improved, but the upward force generated by discharge pressure makes it difficult for firefighters to control the equipment
Solution Approach 1:
The patent introduces a counterweight mechanism that generates a downward force to counterbalance the upward thrust produced by high-pressure water discharge. This allows the discharge equipment to remain controllable even when operating at high pressures that would otherwise be impossible to manage manually.
Solution Approach 2:
The patent employs adjustable pressure regulation mechanisms that allow firefighters to modify the discharge pressure parameters according to situational needs. By controlling the pressure within an optimal range, the system maintains effective water discharge while preventing excessive upward force that would compromise operator safety and control.
2Productivity
If discharge pressure is increased to improve firefighting effectiveness, then the water discharging performance is improved, but the risk of equipment detachment and safety accidents increases
Solution Approach 1:
The counterweight mechanism continuously balances the upward thrust force, preventing sudden pressure fluctuations from causing equipment detachment. This stabilizing force ensures that even at high discharge pressures, the equipment remains securely controllable and reduces the risk of safety accidents.
Solution Approach 2:
The patent incorporates pressure stabilization mechanisms that cushion against sudden pressure variations before they can cause harmful effects. By preemptively managing pressure fluctuations and vortex formation, the system prevents equipment detachment and safety incidents before they occur.
3Duration of action of moving object
If high-pressure discharge is maintained for long periods to extend firefighting duration, then the firefighting coverage is improved, but firefighters experience physical exhaustion and cannot sustain operation
Solution Approach 1:
By continuously counterbalancing the upward thrust force, the system eliminates the physical strain on firefighters that would otherwise require constant muscular effort to maintain control. This enables extended operational periods without firefighter exhaustion, as the equipment becomes self-stabilizing rather than requiring continuous human force.
4Reliability
If multiple firefighters are required to support the discharge gun to manage high pressure, then the control stability is improved, but manpower losses increase
Solution Approach 1:
The counterweight mechanism transforms the discharge equipment from a multi-person operation into a single-operator system. By automatically generating the necessary counterbalancing force, the system achieves stable control with one firefighter, thereby freeing additional personnel for other firefighting tasks and improving overall operational efficiency.
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
Enables a single firefighter to maintain and control the discharge equipment for extended periods, reducing the risk of accidents and water wastage by ensuring a stable, downward discharge of firefighting water, thereby enhancing safety and operational efficiency.
Implementation Method 1
a discharge pressure adjustment nozzle (200) inserted and fixed in the cartridge housing (100) and adjusting the discharge pressure of firefighting water FW1 passing through the cartridge housing (100)
Data Source
AI summary
The present invention relates to a discharge pressure adjustment cartridge that is combined with a fire hose pressure relief valve and, more particularly, to a discharge pressure adjustment cartridge that is combined with a fire hose pressure relief valve, the discharge pressure adjustment cartridge enabling a firefighter to easily control the discharge direction of firefighting water by removing upward force that is generated in the firefighting water in the opposite direction to gravity by discharge pressure.