Engine Generator Gas-Liquid Separation for Moisture Protection
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Solution Overview
Problem
Conventional engine-driven power generators are limited in use in environments prone to moisture due to the intake of moisture-containing air, which can lead to operational issues.
Innovation Solution
An engine-driven power generator design featuring a gas-liquid separation unit upstream of the power generation section, with a centrifugal separation section and a by-weight separation section, and a fuel tank covering the air inlet port to prevent moisture from entering the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the air inlet port is provided on the outer side portion of the engine-driven power generator, then cooling air can be effectively introduced into the power generation section, but moisture-containing air may be taken in through the air inlet port in wet environments
Solution Approach 1:
A gas-liquid separation unit is introduced as an intermediary component between the air inlet port and the power generation section. This unit separates moisture from cooling air using centrifugal force generated by a separator, allowing dry air to cool the power generation section while preventing moisture from entering and causing reliability issues.
2Productivity
If the cooling fan is positioned between the engine and the power generation section, then cooling air flow is optimized, but the air inlet port location exposes the system to moisture intake in wet environments
Solution Approach 1:
The gas-liquid separation unit is positioned upstream of the power generation section, performing preliminary separation of moisture from air before the air reaches the power generation components. This preliminary action prevents moisture from entering the system while maintaining the optimized cooling air flow path through the fan positioned between the engine and power generation section.
3Device complexity
If no gas-liquid separation unit is provided, then the device structure remains simple, but moisture-containing air enters the power generation section in wet environments
Solution Approach 1:
A gas-liquid separation unit is introduced as an intermediary component between the air inlet port and the power generation section. This unit separates moisture from cooling air using centrifugal force generated by a separator, allowing dry air to cool the power generation section while preventing moisture from entering and causing reliability issues.
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
Effectively prevents moisture-containing air from entering the power generation section, enhancing the generator's reliability and usability in wet environments by separating moisture from the air using centrifugal and gravitational forces.
Implementation Method 1
a centrifugal separation section provided, in a region of the gas-liquid separation unit between the air inlet port and a lower duct portion, for separating moisture, contained in the air, from the air by centrifugal force
Implementation Method 2
a by-weight separation section provided, in another region of the gas-liquid separation unit between the lower duct portion and the air outlet portion, for separating moisture, contained in the air, from the air utilizing a weight of the moisture
Data Source
AI summary
Engine-driven power generator includes: a power generation section having a drive shaft connected to a crankshaft; a gas-liquid separation unit provided upstream of the power generation section and having an air inlet port for taking in cooling air, the inlet port being disposed immediately under a fuel tank, the separation unit separating moisture from the taken-in air; and a cooling fan rotatable by the drive shaft to direct the taken-in air into the power generation section.