Pulse Combustion Valve Isolation for Vibration and Noise Damping
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Solution Overview
Problem
Pulse combustion apparatuses generate high levels of vibration and noise due to shock waves from gaseous media nonreturn valves, which are not effectively mitigated by existing vibration dampers, leading to equipment deterioration and environmental noise pollution.
Innovation Solution
The apparatus includes vibration isolators installed between gaseous media nonreturn valves and heat removal devices, with sound-absorbing materials lining guard chamber walls and shock wave dampers to reduce vibration and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pulse combustion apparatus is operated, then high efficiency and compact size are achieved, but high level of vibration and noise is generated
Solution Approach 1:
The patent extracts the harmful vibration source (nonreturn valve) from the main combustion system by connecting it through a vibration isolator to the heat removal device, separating the useful combustion function from the harmful vibration transmission
Solution Approach 2:
A vibration isolator is introduced as an intermediary element between the nonreturn valve and the heat removal device, mediating the connection to prevent direct transmission of vibrations while maintaining the functional relationship between components
2Object-generated harmful factors
If vibration dampers are installed on pulse combustion apparatus, then some vibration reduction is achieved, but vibration from nonreturn valves is not effectively mitigated
Solution Approach 1:
The patent specifically targets and extracts the vibration source from nonreturn valves by providing dedicated vibration isolation for these valves, separating them from the general vibration dampening approach applied to the main apparatus body
Solution Approach 2:
The patent applies local vibration isolation measures specifically at the nonreturn valve connections to the heat removal device, rather than uniform vibration dampening throughout the entire apparatus, addressing the specific local source of harmful vibrations
3Device complexity
If nonreturn valves are connected directly to heat removal device, then simple structure is maintained, but high vibration is transmitted to hydraulic system
Solution Approach 1:
A vibration isolator is introduced as an intermediary element between the nonreturn valve and the heat removal device, mediating the connection to prevent direct transmission of vibrations while maintaining the functional relationship between components
Solution Approach 2:
The connection structure is segmented into distinct functional zones: the nonreturn valve, the vibration isolator, and the heat removal device, allowing independent optimization of each component's vibration characteristics
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
Significantly reduces vibration and noise levels by isolating nonreturn valves from the heat removal system, absorbing shock waves, and using acoustic low-pass filters, thereby improving equipment longevity and environmental quality.
Implementation Method 1
at least one gaseous medium nonreturn valve is directly or indirectly linked to a the device for removing heat via a vibration isolator
Implementation Method 2
the walls of at least one guard chamber are lined with a material with sound absorbing properties
Implementation Method 3
at least one resonant channel connected to the combustion chamber
Implementation Method 4
shock wave dampers to reduce vibration and noise
Data Source
AI summary
The invention relates to the field of power engineering and can be used in heating systems, more particularly in water heaters or boilers, in disposal systems fueled by the combustion of associated gas, and in electrical energy generating systems. A pulse combustion apparatus comprises a combustion chamber 14, at least one resonant channel 28 connected to the combustion chamber 14, a device 15 for removing heat which is linked to the combustion chamber and to the resonant channel and which consists of at least one chamber and/or at least one tube for a heat-exchanging agent 16. A device for supplying air and combustible gas, which is connected to the combustion chamber 14, comprises at least one gaseous medium nonreturn valve 17 and at least one guard chamber 18 of said valve 17. The at least one gaseous medium nonreturn valve 17 is directly or indirectly linked to the device 15 for removing heat via a vibration isolator 19, 24.