Blast Damper Actuation for Automatic Pressure Response
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Solution Overview
Problem
Existing blast dampers lack the ability to automatically adjust to sudden pressure changes, requiring manual intervention or remote operation to switch between open and closed positions, which complicates their use and increases complexity.
Innovation Solution
A blast damper with pivotally arranged closing blades and an actuating mechanism that automatically responds to pressure changes, utilizing an energy storing device to switch positions and an adjustable stopper mechanism to set the open position, allowing for automatic and adjustable airflow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual intervention or remote operation is used to switch between open and closed positions, then operational control is maintained, but device complexity and operational difficulty increase
Solution Approach 1:
The blast damper is equipped with an actuating mechanism that automatically detects pressure changes and triggers closing blades to pivot between open and closed positions without requiring manual intervention. The mechanism uses pressure-sensitive components to sense when a blast condition occurs and autonomously activates the closing action, making the system serve itself during critical operations.
Solution Approach 2:
The patent replaces manual mechanical operation with an automated actuating mechanism that uses pressure-sensitive detection and mechanical amplification. Instead of requiring operators to manually switch valves or dampers, the system uses pressure-induced movement of closing blades through a mechanically-coupled actuating mechanism that translates pressure changes into automatic closing actions.
2Productivity
If closing blades are kept in open position for normal airflow, then productivity is maintained, but response time to pressure changes is delayed
Solution Approach 1:
The actuating mechanism is pre-configured and continuously monitored, ready to activate immediately when pressure changes occur. The closing blades are positioned and prepared in advance through the actuating mechanism's design, so that when a blast condition is detected, the transition to closed position occurs without delay. This preliminary preparation ensures rapid response while maintaining open position during normal operations.
3Speed
If automatic pressure response is implemented, then response speed to pressure changes is improved, but device complexity increases
Solution Approach 1:
The actuating mechanism serves as an intermediary component that bridges the pressure-sensitive detection and the closing blade movement. It translates subtle pressure changes into decisive mechanical action, enabling automatic response without requiring complex electronic control systems or multiple components. The intermediary mechanism simplifies the automatic response system while maintaining fast response speed.
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 automatic and efficient airflow management by allowing the damper to switch positions based on pressure changes without manual intervention, simplifying operation and enhancing safety in high-pressure environments.
Implementation Method 1
The energy storing device is configured to be loaded with energy when the closing blade pivots into the closed position, wherein said energy loaded to the energy storing device is configured urge the closing blade into the open position from the closed position
Data Source
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AI summary
Presented is a blast damper (1) comprising a frame (2) defining a flow channel (3) and closing blades (4) in the flow channel (3). The blast damper comprises an actuating mechanism (6) comprising turning levers (7) so that one turning lever (7) is fixed to shaft means (5) of each closing blade (4) and a common operating lever (8) is configured to simultaneously pivot the closing blades (4) between a closed position and so that the actuating mechanism (6) takes a closing position, and an open position and so that the actuating mechanism (6) takes an opening position. The blast damper comprises an energy storing device (9) that is functionally connected to the actuating mechanism (6) and that is configured to be loaded with energy when the closing blades (4) pivots into the closed position. The blast damper (1) comprises an adjustable stopper mechanism (10) for setting the opening position.