Flexible Pre-Cambered Frame for Mobile Gas Compressor Wear Reduction

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Solution Overview

Problem

Mobile natural gas compressors with high horsepower ratings face reliability issues and high maintenance costs due to excessive wear and tear, particularly in remote locations, limiting their effectiveness and profitability in oil and gas production.

Innovation Solution

A mobile unitary high horsepower rated natural gas compression package featuring a pre-cambered trailer frame that flexes during transport and operation, an inflexible sub-skid for the compressor, ancillary components with break flanges for flexibility, a horizontal gas scrubber, adjustable cooler support, pullout arrangement for maintenance access, and a disk style muffler for sound deadening, all designed to reduce wear and enhance reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If mobile compressors with high horsepower ratings are used, then compression power is improved, but reliability deteriorates due to excessive wear and tear

Engineering Contradiction:
Improvecompression powerVSAvoidreliability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The compressor system is divided into modular components (compressor unit, engine, ancillary equipment) that can be independently supported and maintained. The flexible frame segments the structural support system, allowing different parts to move independently and reduce stress transmission between components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible pre-cambered frame is designed to absorb and dissipate vibration energy before it can cause damage to the compressor components. The pre-cambered configuration creates built-in stress relief mechanisms that protect the compressor from excessive wear during operation and transport.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Adaptability or versatility

If mobile compressors are used in remote locations, then operational flexibility is improved, but maintenance complexity increases

Engineering Contradiction:
Improveoperational flexibilityVSAvoidmaintenance complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The modular design allows the compressor system to be broken down into discrete, easily replaceable units. Ancillary equipment is separately mounted and can be serviced independently, reducing maintenance complexity in remote locations where comprehensive repair facilities are unavailable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible frame with break flanges allows the structure to adapt to different operational conditions and transport configurations. This dynamic design simplifies maintenance by allowing quick reconfiguration and access to different components without requiring complex disassembly procedures.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the frame is made flexible to reduce wear, then reliability is improved, but structural strength deteriorates

Engineering Contradiction:
ImprovereliabilityVSAvoidstructural strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The frame system employs different structural properties in different locations: the pre-cambered flexible portions provide vibration absorption, while the sub-skid and break flange regions provide rigid support and controlled articulation points. This localized differentiation of structural qualities maintains overall strength while providing flexibility where needed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The frame system combines different structural elements (flexible pre-cambered sections, rigid sub-skid, articulated break flanges) to create a composite structure that exhibits both flexibility and strength. Each component is optimized for its specific function, and their combination provides the desired balance of properties.

Inventive Principle:
Principle #40Composite materials

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 significantly reduces downtime and operating costs by improving the reliability and longevity of mobile compressors, addressing the challenges of wear and tear and maintenance complexities in remote locations.

Implementation Method 1

a pre-cambered frame configured to flex during transport and in response to vibration during operation

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

a horizontal gas scrubber affixed to the sub-skid

Methodology Applied
Scientific EffectSedimentation: Sedimentation

Implementation Method 3

a cooler and an adjustable cooler support

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentEP2074010B1Mobile wear and tear resistant gas compressor
Publication Date: 2012.04.25 BIDELL EQUIP PARTNERSHIP
  • EP2074010B1 patent drawingFigure 1~6
  • EP2074010B1 patent drawingFigure 3
  • EP2074010B1 patent drawingFigure 4~5

AI summary

A mobile high horsepower rating natural gas compression package is presented. The apparatus includes a trailer having a flexible pre-cambered frame (100) configured to absorb shock during transport and dissipate vibration during operation, and an inflexible sub-skid (130) attached to the flexible frame (100) A high horsepower rating engine (132) driven compressor (134) is attached to the sub-skid (130) while ancillary compression package components (142, 144) are attached to the flexible frame (100) An arrangement of break flanges (140) is employed to permit relative motion between the compressor (134) and the ancillary compression package components (142, 144) during transport and operation.