Planetary Speed Reducer for Turbine-Driven Fracturing Power Transfer

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Solution Overview

Problem

Current fracturing apparatuses, driven by diesel engines, face limitations in power capacity and contribute to environmental pollution, making them incapable of performing high-power operations and meeting emission requirements.

Innovation Solution

A speed reducer system connected to a turbine engine, comprising a housing, planet carrier, connecting flange, planet shaft, planet gear, sun gear, and ring gear, which enables the transmission of high power from the turbine engine to a fracturing device, utilizing natural gas as a clean energy source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a diesel engine is used to drive the fracturing device, then the apparatus can operate with limited power, but it cannot perform high-power operations and causes severe environmental pollution

Engineering Contradiction:
Improvepower outputVSAvoidenvironmental pollution
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

The patent changes the energy source parameter from diesel engine to turbine engine, which fundamentally alters the power generation mechanism. The turbine engine uses natural gas or other clean fuels to drive the turbine, converting thermal energy directly to mechanical rotation, thereby achieving high power output while eliminating diesel pollution emissions.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a diesel engine is used to drive the fracturing device, then the apparatus can operate, but it fails to meet emission requirements

Engineering Contradiction:
Improveoperational capabilityVSAvoidemission pollution
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the diesel engine's internal combustion mechanical system with a turbine-driven system. The turbine converts thermal energy from clean fuels into rotational mechanical energy directly, bypassing the complex combustion and emission processes of diesel engines, thus maintaining operational capability while eliminating emission problems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Power

If the speed reducer is connected to the turbine engine, then high power can be transmitted to the fracturing device, but the system requires complex gear transmission components

Engineering Contradiction:
Improvepower transmissionVSAvoidtransmission system complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent introduces a speed reducer as an intermediary device between the turbine engine and the fracturing device. This speed reducer uses planetary gear mechanisms to efficiently transmit and transform the high-speed, low-torque output of the turbine into low-speed, high-torque output suitable for the fracturing device, solving the mismatch in operational requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The speed reducer employs a planetary gear system where planet gears are nested around a sun gear, all contained within a ring gear structure. This nested configuration allows multiple gear stages to be compactly arranged, achieving high reduction ratios while maintaining a compact structure and efficient power transmission.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 enables the fracturing apparatus to perform high-power operations reliably while reducing environmental pollution by leveraging the higher power output of the turbine engine and using clean energy, thus addressing the limitations of diesel engine-powered systems.

Implementation Method 1

the planet gear is engaged with the sun gear, the ring gear is engaged with the planet gear

Methodology Applied
Scientific EffectGear meshing: Gear

Implementation Method 2

the power source of the turbine engine is natural gas which is clean energy

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS11828236B2Speed reducer and fracturing apparatus
Publication Date: 2023.11.28 YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD
  • US11828236B2 patent drawing
  • US11828236B2 patent drawing
  • US11828236B2 patent drawing

AI summary

The application discloses a speed reducer and a fracturing apparatus, the speed reducer may be used to connect to a turbine engine and comprises a housing, a planet carrier, a connecting flange, a planet shaft, a planet gear, a sun gear, a ring gear, an input shaft and an output shaft; the housing may be connected to the planet carrier, the connecting flange may be connected to the planet carrier and may be used to connect to the turbine engine; the planet shaft may be connected to the planet carrier, the planet gear may be sleeved on the planet shaft, one end of the input shaft may be used to connect to an output end of the turbine engine and the other end of the input shaft may be sleeved with the sun gear which is engaged with the planet gear, the ring gear may be engaged with the planet gear and connected to the output shaft.