Fuel Cell Powered Horizontal Directional Drilling Machine
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Solution Overview
Problem
Horizontal directional drilling machines rely on internal combustion engines, which have drawbacks such as noise, pollution, and limited portability, necessitating a more efficient and cleaner power source for underground construction.
Innovation Solution
The use of electrically powered horizontal drilling machines with fuel cells as the primary power source, coupled with synchronized inverters to manage power from various electrical sources, replacing traditional hydraulic and mechanical systems with electric motors and actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If internal combustion engines are used to power horizontal directional drilling machines, then sufficient power and portability are achieved, but noise and pollution are generated
Solution Approach 1:
The patent replaces the internal combustion engine (mechanical/thermal system) with an electric motor (electrical system) as the power source. This substitution eliminates combustion-related noise and pollution while providing sufficient power for HDD operations through electrical energy conversion.
Solution Approach 2:
The patent changes the energy source parameter from chemical energy (fuel combustion) to electrical energy. This parameter change fundamentally alters the operational characteristics, eliminating exhaust emissions and reducing noise while maintaining the required power output for drilling operations.
2Device complexity
If traditional hydraulic systems are used in HDD machines, then reliable power transmission is achieved, but system complexity and maintenance requirements increase
Solution Approach 1:
The patent replaces hydraulic transmission systems with direct electrical drive systems. Electric motors provide reliable power transmission through electrical fields without requiring complex hydraulic components such as pumps, valves, and fluid management systems, thereby reducing overall system complexity while maintaining reliability.
3Object-generated harmful factors
If electric motors are used to power HDD machines, then noise and pollution are eliminated, but power management complexity increases
Solution Approach 1:
The patent employs synchronized inverters that can manage multiple power sources (grid power, generator power, battery power) through a single integrated system. This multi-functional device handles power conversion, synchronization, and distribution, simplifying the overall power management architecture despite the need to handle various electrical sources.
Solution Approach 2:
The inverter system acts as an intermediary between various power sources and the electric motors. It manages the conversion and distribution of electrical power, coordinating between different input sources and the motor loads, thereby simplifying the complexity of managing multiple power inputs through a centralized control mechanism.
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
This solution provides a cleaner, quieter, and more portable drilling operation by eliminating combustion engine noise and pollution, while enabling flexible power management and increased automation in HDD machines.
Implementation Method 1
The use of electrically powered horizontal drilling machines with fuel cells as the primary power source
Implementation Method 2
converting the direct current electric power to alternating current electric power
Implementation Method 3
operating an electric motor with the alternating current electric power, and rotating a drill string connected to the downhole tool, wherein the drill string is rotated by operation of the electric motor
Data Source
AI summary
An electric horizontal directional drilling machine. An electric horizontal directional drilling machine is powered by an electric power assembly. The power assembly is made up of a fuel cell and inverter, or multiple fuel cells with synchronized inverters. The electric motor operates hydraulic pumps or works independently to rotate, advance and retract a drill string and downhole tool through the earth and operate various machine functions. Mechanical functions of the drilling machine may also be satisfied through the use of electric rotary actuators (e.g., motors) and linear actuators (e.g., linear motors and solenoids).