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refrigeration
1.
压缩机制冷基础知识培训 1. 2. 制冷量的决定因素: *压缩机转速 *标准工况下:常用制冷剂在标准工况下工作温度为:制造厂在机器的铭牌上标出的制冷量一般都是指标准 工况下的制冷量。 *空调工况下 12V 压缩机 24V
压缩机 48V 压缩机 接入 12V 控制板 24V 控制板 48V 控制板 连接 12V 主控板 24V 控制板 48V 控制板 控制板作用: 转速控制; 保护压缩机 主 控 板 作 用: 调节转速, 测量转速 接入电源: 开关电源(含变压器) 110V/220V12V 24V 48V 接入电源: 蓄电池 12V 24V 48V 连 接 控 制 系 统 生成产品
2.
*冰箱工况下 3. 整个制冷系统: 4. 关于高背压,低背压 背压是指活塞背端的压力。 高背压与低背压压缩机设计不同,低背压用在冷藏时电机容易过载。 低背压式(蒸发温度-35~-15℃),一般用于家用电冰箱、食品冷冻箱等。 中背压式(蒸发温度-20~0℃),一般用于冷饮柜、牛奶冷藏箱等。 高背压式(蒸发温度-5~15℃),一般用于房间空气调节器、除湿机、热泵等。 对压缩机来说,在冷凝温度不变时,蒸发温度越低,则压缩机压缩比越高,对压缩机 的密封要求越严格。 蒸发温度越低,则排气温度就越高。高背压有助于减小泄露量。 压 缩 机 冷凝器 毛 细 管 蒸发器 高
温 高 压 低 温 低 压 低 温 常 压 常 温 高 压
3.
5. 冲剂量 *雪种 R134a *机油
填充好为 45g-50g 型号:_________________ 寄国外时,不冲油 请根据各部分的容量,标注参考的充剂量 6. 保修期 压缩机(本体): 1 年 (最多 3 年) 控制板:1 年 www.greatcool.net info3@ukicra.com skype: irisliu1230 压 缩 机 冷凝器 毛 细 管 蒸发器 高 温 高 压 低 温 低 压 低 温 常 压
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