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在制冷系统中,低压部分的管道及其设备的外包隔热层(指以软木、石棉灰泥等材料的隔热层),或因安装时施工不严格,质量差;或因管理不善,年久失修而产生裂缝,甚至脱层剥落,特别是靠近压缩机部分的低压管道则因机器运行时的震动,隔热层更易损坏。若采用氨泵供液系统,其低压循环桶,汽液分配站等低压设备,一般都设置在与机房相连的设备间内,由于处于常温下的缘故,上述情况更为严重。我们知道,在常温下的低压管道,及低压设备的表面上包扎上一层隔热材料,其目的是: 一、防止经节流降压后的雾状低温制冷剂在输入蒸发器(冷却排管)之前发生热交
In the refrigeration system, low-pressure part of the pipeline and its equipment outsourcing insulation (referring to cork, asbestos stucco and other materials, insulation), or due to the construction of the installation is not rigorous, poor quality; or due to poor management, the year Long time disrepair and produce cracks, and even delamination peeling, especially near the compressor part of the low-pressure pipe due to the operation of the machine vibration, insulation more vulnerable to damage. If the ammonia pump is used for the liquid supply system, the low-pressure circulation drums, vapor-liquid distribution stations and other low-pressure equipment are generally disposed in the equipment room connected with the engine room, which is more serious due to the normal temperature. We know that the low-pressure pipeline at room temperature, and low-voltage equipment on the surface wrapped with a layer of insulation material, the purpose is: First, to prevent the throttle after decompression of the cryogenic refrigerant in the input evaporator (cooling row Tube) before the heat exchange