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蒸发式冷凝器研发问题及主要优点有哪些
一、研发问题有哪些?
蒸发式冷凝器以水和空气为冷却介质与盘管内的高温气态制冷剂进行热交换,制冷剂由气态冷凝成液态。
蒸发式冷凝器研发问题有哪些?
1. 结垢问题:蒸发式冷凝器结构紧凑,换热效率高,结垢对其传热性能影响相当大。
2.腐蚀问题:蒸发式冷凝器外壳由于常年处于水与空气的潮湿环境下,易于腐蚀。
3.水量的合理分布问题:喷淋水的水量选择和均匀分布对蒸发式冷凝器换热效果有很大的影响,如果喷淋水量不足,易于在换热管表面结垢。
4.风机问题:以往国产蒸发式冷凝器一般为吹风式结构,风机装在下面,由于挡水板设置不当,或用户操作不当,先开水泵后开风机,造成风机接线盒进水短路,使电机烧毁。
5.振动与噪声问题:蒸发式冷凝器运行时噪声来源有:风机、水泵、冷却水下落噪声和箱体综合噪声,主要是风机噪声。
二、蒸发式冷凝器主要优点
蒸发式冷凝器以水和空气为冷却介质与盘管内的高温气态制冷剂进行热交换,制冷剂由气态冷凝成液态。
蒸发式冷凝器主要优点:
1、系统运行费用低
冷凝温度在湿球设计温度8.3℃以内是非常实际和经济的,其结果是压缩机功率比其它的冷凝器系统节省至少10%的功耗,并且比风冷式冷凝器系统节省30%的功耗。
2、节省初投资
蒸发式冷凝器把冷却塔、冷凝器、循环水池、循环水泵和水管综合为一体,这样减少了冷却塔、循环水泵和水管等设备,也减少了冷凝器系统中处理与安装单个元件的费用。
3、节省空间
蒸发式冷凝器通过把冷凝器盘管和冷却塔结合成一体节省了宝贵的空间,并且没必要向冷凝器系统那样需要较大的水泵与管路。