《浅析船舶制冷压缩机常见故障》-毕业论文设计（学术).docVIP

w 浅析船舶制冷压缩机常见故障 Analysis common failure of the ship refrigeration compressor 目 录 TOC \o 1-2 \h \z \u HYPERLINK \l _Toc264021568 摘要 PAGEREF _Toc264021568 \h I HYPERLINK \l _Toc264021569 Abstract Ⅱ HYPERLINK \l _Toc264021570 第一章 前言 1 HYPERLINK \l _Toc264021571 第二章 制冷压缩机常见故障（1）电机的损坏 2 HYPERLINK \l _Toc264021572 2.1 电压不正常和缺相 2 HYPERLINK \l _Toc264021573 2.2 接触器的选择 2 HYPERLINK \l _Toc264021574 2.3 负荷增大和堵转电流过高 3 2.4 短路问题 HYPERLINK \l _Toc264021574 3 HYPERLINK \l _Toc264021574 2.5 电机的冷却不佳 3 HYPERLINK \l _Toc264021575 第三章 制冷压缩机常见故障（2）缺油与润滑不足 4 HYPERLINK \l _Toc264021576 3.1 缺油 4 HYPERLINK \l _Toc264021577 3.2 润滑不足 4 HYPERLINK \l _Toc264021578 HYPERLINK \l _Toc264021579 第四章 制冷压缩机常见故障（3）液击危害及分析 5 HYPERLINK \l _Toc264021580 4.1 过程与现象 5 HYPERLINK \l _Toc264021581 4.2 原因分析 5 HYPERLINK \l _Toc264021583 第五章 制冷压缩机常见故障（4）过热现象 7 HYPERLINK \l _Toc264021584 5.1 危害 7 HYPERLINK \l _Toc264021585 5.2 电机过热与排气温度过高 7 HYPERLINK \l _Toc264021586 第六章 结论 9 HYPERLINK \l _Toc264021587 致谢 10 HYPERLINK \l _Toc264021588 参考文献 11 w 摘要 压缩机是船舶制冷系统中的核心部件，被称为制冷装置的“主机”，是决定装置制冷量的关键设备，也是维护保养的重点。只有通过它将电能转换为机械功，把低温低压气态制冷剂压缩为高温高压气体，才能保证制冷的循环进行。由于各种损失诸如摩擦、泄漏、有害传热、电机损失、流动阻力、噪声振动等的存在，压缩机工作时实际效率远低于理论效率。分析制冷压缩机常见故障，有效地对其进行维护保养，能很好地提高压缩机使用寿命和工作效率。本文通过对船舶制冷压缩机常见故障进行了分析，使其在使用过程中能有针对性地进行管理，防止损坏事故的发生，能很大程度地提高船舶制冷装置的经济性和实用性。 关键词: 制冷装置，压缩机，故障分析 w Abstract The Ship refrigeration compressor is the core component of the system, known as the cooling device, host , is to determine the cooling capacity of key equipment installation, maintenance is the key. It is only through the power converted to mechanical power, the low-temperature low-pressure refrigerant gas compressed to high temperature and high pressure gas in order to ensure the cooling loop. Due to various losses such as friction, leakage, hazardous heat transfer, electrical losses, flow resistance, the presence of noise and vibration, the compressor work, the actual efficiency is much lower than the theoretical efficiency. Analysis of commo