Shield Machine Emergency Power with Solid-State Energy Cells
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Solution Overview
Problem
Shield machines face power outages due to transformer failures, posing safety risks and environmental hazards from diesel generators, which are used as emergency power sources.
Innovation Solution
An energy device comprising a trolley structure with a solid-state energy cell, power management system, and inverter system, providing a clean and stable power supply that replaces diesel generators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a diesel generator is used as emergency power supply, then the shield machine can maintain operation during power outages, but it causes sound, heat and toxic harmful gases that affect personal health and cannot meet construction requirements
Solution Approach 1:
The patent replaces the mechanical combustion-based diesel generator system with an electrical energy storage system (solid-state energy cells). This substitution eliminates the combustion process that produces sound, heat, and toxic gases, while providing the same emergency power supply function through electrical energy storage and release.
Solution Approach 2:
The patent changes the fundamental operating parameters of the emergency power supply system by transitioning from chemical combustion (diesel) to electrical energy conversion (solid-state cells). This parameter change transforms the system from producing harmful emissions to providing clean electrical energy, resolving the contradiction between reliability and harmful factors.
2Reliability
If a diesel generator is equipped in the sealed tunnel space, then emergency power can be provided, but the storage of diesel and operation of generator affect personal health of construction personnel
Solution Approach 1:
The patent replaces the diesel-based mechanical system with an electrical energy storage system. This eliminates the need for diesel storage and combustion operations within the tunnel, removing the associated health hazards while maintaining emergency power supply capability.
Solution Approach 2:
The patent extracts and removes the diesel fuel storage and combustion components from the emergency power supply system, replacing them with solid-state energy cells. This extraction eliminates the harmful factors associated with diesel while preserving the essential function of providing emergency power.
3Adaptability or versatility
If the shield machine depends on its own high-voltage transformer, then the equipment can operate independently, but once the transformer fails or ground power supply fails, the whole shield machine immediately enters disabled state
Solution Approach 1:
The patent implements preliminary action by pre-charging solid-state energy cells during normal operation when power is available. This allows the system to store energy in advance, so that when the transformer or ground power supply fails, the pre-charged cells can immediately provide power without causing the machine to enter a disabled state.
Solution Approach 2:
The patent provides beforehand cushioning by creating an energy buffer through solid-state energy cell storage. This cushioning capacity protects the system against power supply failures, allowing continuous operation during transformer or ground power supply failures and preventing the machine from entering a disabled state.
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
Ensures safe and environment-friendly power supply, reducing costs and eliminating health risks associated with diesel generators.
Implementation Method 1
a solid-state energy cell arranged on the trolley structure; wherein, the solid-state energy cell is connected with the power management system and used for providing electric energy output
Implementation Method 2
an inverter system arranged between the power management system and the solid-state energy cell, wherein the inverter system is used for controlling the charging input or power supply output of the solid-state energy cell
Data Source
AI summary
An energy device for shield machines disclosed by the application comprises: a trolley structure arranged behind the shield machine; a power management system arranged on the trolley structure and electrically connected with the shield machine main body; a solid-state energy cell arranged on the trolley structure; wherein, the solid-state energy cell is connected with the power management system and used for providing electric energy output; and an inverter system arranged between the power management system and the solid-state energy cell, wherein the inverter system is used for controlling the charging input or power supply output of the solid-state energy cell. The energy device for shield machines disclosed by the application is safe and environment-friendly, can replace the diesel generator as the emergency energy source of shield machines, provides stable power supply, and reduces the power consumption cost of the shield machine.