Electric Fracturing Pump Lubrication Layout for Noise Reduction
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Solution Overview
Problem
Conventional fracturing apparatuses, particularly those using diesel engines, face issues with large size, high weight, environmental impact, high operating costs, and noise pollution, along with complex systems and high maintenance requirements.
Innovation Solution
A fracturing apparatus with a plunger pump and a power end lubricating system that includes a lubricating oil tank, lubrication pumps, and motors, where at least a portion of the lubrication motor and pump is located within the lubricating oil tank, reducing noise and incorporating a control system for temperature and pressure management, and utilizing an electric motor for power, which simplifies the structure and reduces environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a diesel engine is used to power the plunger pump, then sufficient power can be provided, but the device becomes large in size, heavy in weight, and generates noise pollution
Solution Approach 1:
The patent replaces the diesel engine mechanical power system with an electric motor-driven plunger pump system. This substitution eliminates the need for a complex combustion engine, reducing device complexity, size, and weight while maintaining sufficient power output for fracturing operations. The electric motor directly drives the plunger pump, simplifying the overall mechanical system.
Solution Approach 2:
The patent extracts and removes the diesel engine component from the fracturing apparatus, eliminating the source of noise pollution, high weight, and environmental impact. By separating the power generation function and using an electric motor instead, the harmful characteristics are removed while the essential power delivery function is preserved.
2Power
If a diesel engine is used, then power can be generated, but environmental impact and operating costs increase
Solution Approach 1:
The patent substitutes the diesel engine with an electric motor, eliminating combustion-related environmental impacts such as exhaust emissions. The electric motor provides the necessary power without producing harmful pollutants, thereby reducing environmental impact while maintaining power generation capability.
Solution Approach 2:
The patent changes the energy conversion parameter from chemical energy (diesel combustion) to electrical energy (electric motor). This parameter change eliminates the production of harmful exhaust gases and reduces environmental impact, while still achieving the required power output for the fracturing operation.
3Reliability
If conventional lubrication systems are used, then power end lubrication can be provided, but noise levels remain high
Solution Approach 1:
The patent merges the lubrication system components (lubrication pump, motor, and oil tank) into a single integrated unit. This consolidation allows for optimized design where the lubrication pump motor is positioned within or adjacent to the oil tank, reducing the number of separate noisy components and improving overall system efficiency while maintaining reliable lubrication function.
Solution Approach 2:
The patent nests the lubrication pump motor within the lubricating oil tank structure. This nesting arrangement places the motor inside or within the boundaries of the oil tank, effectively reducing the spatial footprint and minimizing noise radiation to the external environment while ensuring continuous lubrication supply to the power end.
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 solution effectively reduces noise and operational costs, enhances maintenance efficiency, and improves the environmental sustainability of the fracturing process by using an electric motor and intelligent control systems for temperature and pressure management.
Implementation Method 1
a power end lubricating system that includes: a lubricating oil tank defining an accommodation space, at least one lubrication pump having a lubrication pump oil inlet and a lubrication pump oil outlet that are coupled to each other
Implementation Method 2
at least one lubrication motor configured for providing power for the at least one lubrication pump
Implementation Method 3
a plunger pump that includes a hydraulic end and a power end
Data Source
AI summary
A fracturing apparatus includes: a plunger pump having a hydraulic end and a power end, wherein the power end comprises a power end oil outlet and at least one power end oil inlet that are coupled to each other; a power end lubricating system, including a lubricating oil tank defining an accommodation space, at least one lubrication pump having a lubrication pump oil inlet and a lubrication pump oil outlet that are coupled to each other, and at least one lubrication motor configured to provide power for the at least one lubrication pump; a temperature detector disposed on any one of the oil return pipeline, the power end oil outlet, and the lubricating oil tank; and a control system connected to the temperature detector and the power end lubricating system and configured to control the power end lubricating system.