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                                                                                                                                                                      1. 首页 >> 技术文章 >> 低温冷冻机日常的维护保养有哪些细节?

                                                                                                                                                                        低温冷冻机日常的维护保养有哪些细节?

                                                                                                                                                                      2. 发布日期:2022-06-24      浏览次数:115
                                                                                                                                                                        •   低温冷冻机指压缩制冷方式所采用的压缩机,因其使用条件和压缩工作介质的不同,它有不同于一般的空气压缩机。按冷冻机结构和工作原理上的差别,它与空气压缩机类似,也可分为活塞式、螺杆式、离心式等几种不同形式。冷冻机是压缩制冷设备中最重要的组成部分之一。
                                                                                                                                                                            低温冷冻机日常维护保养是很重要的。下面简单介绍一些低温冷冻机制冷系统故障小技巧给大家参考!
                                                                                                                                                                            1、低温冷冻机组低压高高压低,更换压缩机。当用低温冷冻机压力表检测到低温冷水机系统的低压比正常高,而高压比正常低的时候,这个时候冷冻机制冷绝对不能达到正常低温冷冻机的效果。原因很可能是低温冷冻机泵内磨损,导致功率下降。这个时候往往需要更换压缩机才能解决问题。
                                                                                                                                                                            2、低温冷冻机组压力双高要排气,散热可能有问题。当检测到系统高低压都比正常偏高时候,一般是系统有空气或者制冷剂加入过量,这个时候需要重新抽真空,再加入适量的制冷剂就能解决问题。但是还有一种情况,就是散热不良,特别是环境温度比较高的时候,往往会导致散热更加恶劣,此故障原因一般是散热片堵塞,脏污,散热风扇转速不够等等。
                                                                                                                                                                            3、低温冷冻机组压力双低亏制冷剂,否则系统被赌闭。当高低压都偏低时,有两个可能:(1)、系统堵塞,堵塞部位会产生节流,节流部位会有明显的温差,用手感觉就能找出问题。(2)制冷剂泄露,导致制冷剂不够,这种情况比较常见,这时必须利用低温冷冻机检测仪来查明泄露部位,进行换修。
                                                                                                                                                                            4、表抖系统有水汽,抽空必须更彻底。当低温冷冻机系统工作时,如果压力表针不停地抖动,说明系统有水分。解决这个问题一般需要重新抽真空,抽的时间必须不少于15分钟,必要的时候还需要更换干燥瓶,以彻底排出系统中的水分。

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