Damper for decreasing a pipe vibration
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Solution Overview
Problem
Conventional methods for reducing piping vibrations in air conditioners, especially those with inverter compressors operating over a wide frequency range, are ineffective as they fail to significantly decrease vibrations, leading to potential pipe cracks.
Innovation Solution
A damper system comprising a fixation part directly contacting the pipe, a weight part spaced apart from the pipe, and a slitting part for installation, allowing the weight part to move freely and adjust its weight according to compressor type and pipe shape, thereby effectively reducing vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a weight material is added to the pipe using a fixation clip or cable tie, then the natural frequency of the pipe is moved to a lower frequency band, but the vibration reduction effect is not large
Solution Approach 1:
The damper is divided into three functional segments: a fixation part that contacts the pipe, a weight part that provides inertial mass, and a slitting part that allows installation. This segmentation enables each part to perform its specific function optimally, with the weight part freely moving relative to the pipe to maximize vibration reduction effectiveness.
Solution Approach 2:
The weight part is designed to move freely relative to the pipe rather than being rigidly fixed, allowing it to dynamically respond to pipe vibrations. This dynamic configuration enables the weight part to effectively counterbalance vibrations across a wider frequency range, particularly for inverter compressors with variable operating frequencies.
2Stability of the object's composition
If a conventional damper structure is used, then the natural frequency is shifted, but the vibration decrease does not occur in the operating frequency range of inverter compressors
Solution Approach 1:
The weight part is designed to move freely relative to the pipe rather than being rigidly fixed, allowing it to dynamically respond to pipe vibrations. This dynamic configuration enables the weight part to effectively counterbalance vibrations across a wider frequency range, particularly for inverter compressors with variable operating frequencies.
Solution Approach 2:
The damper utilizes the inertial parameter of the weight part to counterbalance vibrations. By allowing the weight part to move freely, its inertial effect can be optimized across different frequency ranges, making it effective for inverter compressors that operate across a wide frequency spectrum rather than at a fixed frequency.
3Device complexity
If the weight part is directly fixed to the pipe, then the structure is simple, but the vibration reduction efficiency is low
Solution Approach 1:
The damper is divided into three functional segments: a fixation part that contacts the pipe, a weight part that provides inertial mass, and a slitting part that allows installation. This segmentation enables each part to perform its specific function optimally, with the weight part freely moving relative to the pipe to maximize vibration reduction effectiveness.
Solution Approach 2:
The fixation part acts as an intermediary between the pipe and the weight part. It secures the damper to the pipe while allowing the weight part to move freely relative to the pipe, thus mediating between the need for secure attachment and the need for free movement to maximize vibration reduction.
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 damper system significantly decreases pipe vibrations across a wide frequency range, preventing cracks and improving vibration reduction even with inverter compressors, by separating the fixed and weight portions and allowing weight adjustment.
Implementation Method 1
a weight portion connected to the fixation part, and provided at an inside of the weight portion with a penetrating hole having a diameter larger than an outside diameter of the pipe formed thereto such that the pipe passes through the penetrating hole while the weight portion is spaced apart from the outer circumferential surface of the pipe
Data Source
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AI summary
A damper (1) for decreasing a piping vibration capable of enhancing the efficiency in decreasing the piping vibration and adjusting the weight of a weight portion according to the type of the compressor and the shape of the pipe applied to the compressor by separating a fixed portion (10) from a weight portion (20) such that the fixed portion (10) makes a direct contact with a pipe (P) and the weight portion (20) has an interval (S) from the pipe (P) without making a direct contact with the pipe (P), in which the damper (1) installed on the pipe (P) to decrease the vibration includes a fixation part (10) provided with a coupling hole (11) formed therein to be coupled to the pipe (P), and coupled and fixed to the pipe (P) such that the coupling hole (11) makes contact with an outer circumferential surface of the pipe (P), and a weight part (20) connected to the fixation part (10).