无油空压机的振动分析与噪声控制
发布时间：2018-11-21 10:14
【摘要】：空压机作为通用设备，其噪声对周边环境污染的范围之广、危害之大不言而喻。对空压机噪声进行控制是必需的，也是有意义的。本文针对WWD-0.8/10型空压机的噪声治理进行了一些研究。 介绍WWD-0.8/10型空压机的工作原理，分析WWD-0.8/10型空压机在运行过程中产生振动的原因。由于振动产生噪声，根据空压机的振动情况，确定其主要噪声与次要噪声，之后对空压机噪声特性进行分析，采取有效合理的减振降噪措施，保证空压机运行的稳定性，以减少噪声对人体的危害。 根据空压机的振动情况，我们得到进气口间歇吸入空气，产生压力脉动传送到空气中形成的空气动力性噪声是主要噪声源，其次是管道系统的气流脉动和管道振动产生的噪声。对于进气口产生的空气动力性噪声，我们根据噪声特性，采取安装消声器的方法来降低噪声，对所选用的消声器进行优化设计，以便获得动态特性好，消声量大的优质消声器。 针对常见的压缩管道振动情况，分析其振动情况主要是是管系结构固有频率和激发主频率相近造成共振，通过计算分析，可得出进出气口管道的共振长度，，使管道的长度避开空压机管道的共振长度即可达到减振降噪措施，对生产安全与降低噪声都有实际意义。
[Abstract]:As a general purpose equipment, the noise of air compressor has a wide range of environmental pollution and great harm. It is necessary and meaningful to control the noise of air compressor. In this paper, the noise control of WWD-0.8/10 air compressor is studied. This paper introduces the working principle of WWD-0.8/10 type air compressor and analyzes the cause of vibration of WWD-0.8/10 type air compressor during operation. Because the vibration produces noise, according to the vibration of the air compressor, the main noise and the secondary noise are determined, then the noise characteristics of the air compressor are analyzed, and effective and reasonable measures are taken to reduce vibration and noise to ensure the stability of the air compressor. In order to reduce the harm of noise to the human body. According to the vibration of the air compressor, we get that the air dynamic noise caused by the pressure pulsation is the main noise source, the second is the air flow pulsation of the pipeline system and the noise caused by the pipe vibration. For the aerodynamic noise produced by the inlet, we adopt the method of installing muffler to reduce the noise according to the noise characteristics, and optimize the design of the selected muffler in order to obtain the high quality muffler with good dynamic characteristics and large muffler quantity. In view of the common vibration situation of compressed pipeline, the vibration is mainly caused by the resonance caused by the natural frequency of the pipe system structure and the excitation main frequency. Through calculation and analysis, the resonant length of the pipeline at the inlet and outlet can be obtained. The vibration and noise reduction measures can be achieved by avoiding the resonance length of the air compressor pipeline, which is of practical significance to production safety and noise reduction.
【学位授予单位】：辽宁科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH45
本文编号：2346673
[Abstract]:As a general purpose equipment, the noise of air compressor has a wide range of environmental pollution and great harm. It is necessary and meaningful to control the noise of air compressor. In this paper, the noise control of WWD-0.8/10 air compressor is studied. This paper introduces the working principle of WWD-0.8/10 type air compressor and analyzes the cause of vibration of WWD-0.8/10 type air compressor during operation. Because the vibration produces noise, according to the vibration of the air compressor, the main noise and the secondary noise are determined, then the noise characteristics of the air compressor are analyzed, and effective and reasonable measures are taken to reduce vibration and noise to ensure the stability of the air compressor. In order to reduce the harm of noise to the human body. According to the vibration of the air compressor, we get that the air dynamic noise caused by the pressure pulsation is the main noise source, the second is the air flow pulsation of the pipeline system and the noise caused by the pipe vibration. For the aerodynamic noise produced by the inlet, we adopt the method of installing muffler to reduce the noise according to the noise characteristics, and optimize the design of the selected muffler in order to obtain the high quality muffler with good dynamic characteristics and large muffler quantity. In view of the common vibration situation of compressed pipeline, the vibration is mainly caused by the resonance caused by the natural frequency of the pipe system structure and the excitation main frequency. Through calculation and analysis, the resonant length of the pipeline at the inlet and outlet can be obtained. The vibration and noise reduction measures can be achieved by avoiding the resonance length of the air compressor pipeline, which is of practical significance to production safety and noise reduction.
【学位授予单位】：辽宁科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH45
【参考文献】
相关期刊论文 前2条
1 周新祥，李海东;空压机噪声源的数学模型建立[J];鞍山钢铁学院学报;1999年02期
2 向冬枝;吴伟志;;空压机噪声分析与治理[J];通用机械;2008年09期
本文编号：2346673
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