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空调出现堵塞的几种原因以及解决方法!

来源: 日期:2019-03-11 发布人:admin
(1)冰堵:
  (1) Ice jam:
  A、加热抽空法(也称排气烘烤法):在对系统抽真空的同时,对压缩机、冷凝器、干燥过滤器、蒸发器等部件加热升温,好用2~4L/秒的真空泵进行抽空,这样抽空的效果比较好,抽空的时间一般为4小时左右。
  A. Heating evacuation method (also known as exhaust baking method): While vacuum the system, heating and heating the compressor, condenser, drying filter, evaporator and other components, it is best to use 2-4L/sec vacuum pump for evacuation, so that the effect of evacuation is better, the time of evacuation is generally about 4 hours.
  B、氟氮气冲吹法(也称氟氮气脱水法):系统抽空后,给系统充入一定压力的制冷剂或干燥的氮气,然后启动压缩机5~10分钟,再将系统内已吸收了部分水分的氟或氮气放出,如此反复两、三次便可排除水分。
  B. Fluorine-nitrogen flushing method (also known as fluorine-nitrogen dehydration method): After the system is emptied, the system is filled with refrigerant or dry nitrogen at a certain pressure, then the compressor is started for 5-10 minutes, and then the fluorine or nitrogen gas which has absorbed part of the water in the system is released, so that the water can be removed two or three times.
  C、二次干燥过滤器吸水法:在常规的干燥过滤器与毛细管连接中,将毛细管的出液端蒸发器入口端焊开拔出,再插入添加的另一个干燥过滤器的入口端并焊好,然后将干燥过滤器的出口端焊接到蒸发器的入口端。这样比常规单一干燥过滤器的吸水效果好,能完全消除冰堵故障。但可能会对原系统低压侧的压力稍有影响,因此只能在大修或更换内漏蒸发器有必要采用。如果因增加了干燥过滤器造成低压侧的压力有所下降,影响了制冷效果,则可以适当缩短毛细管长度来消除影响。
  C. Water absorption method of secondary drying filter: In the connection between conventional drying filter and capillary, the entrance end of the evaporator at the liquid outlet end of capillary is welded out, then the entrance end of another drying filter is inserted and welded, and then the outlet end of the drying filter is welded to the entrance end of the evaporator. This method has better water absorption effect than the conventional single drying filter, and can completely eliminate the ice jam fault. However, it may have a slight impact on the pressure of the low-pressure side of the original system, so it is necessary to use the internal leakage evaporator only in overhaul or replacement. If the pressure on the low pressure side decreases due to the increase of the drying filter, which affects the refrigeration effect, the capillary length can be appropriately shortened to eliminate the effect.
  (2)脏堵:
  (2) Dirty obstruction:
  脏堵多发生在毛细管(或膨胀阀)、干燥过滤器、出液阀等部位。干燥过滤器堵塞后应更换。膨胀阀堵塞可拆卸清洗。毛细管如更换不便时,可用压力约为1MPa的氮气冲吹,氮气应从制冷剂走向相反的方向冲吹(即从回气管端进入,再从冷凝器出口或从毛细管放出。在冲吹过程中,应用手按住排气口时放时堵,以增加对毛细管的冲力。
  Dirty blockage often occurs in capillary (or expansion valve), drying filter, outlet valve and other parts. Drying filters should be replaced after they are blocked. Blockage of expansion valve can be removed and cleaned. If it is inconvenient to replace the capillary, it can be flushed with nitrogen at a pressure of about 1 MPa. Nitrogen should be flushed from the refrigerant to the opposite direction (i.e. from the end of the return pipe, then from the condenser outlet or from the capillary). In the process of flushing and blowing, the exhaust outlet is blocked when the hand is pressed to increase the impulse on the capillary.
  (3)油堵:
  (3) Oil plugging:
  先焊开管路,用中性焰火烘烤各焊接处,分别将低压吸气管、工艺管及干燥过滤器的焊口烤化后拔下。然后启动压缩机,再用低温火焰烘烤高压排气管和冷凝器(从连接压缩机端开始)利用压缩机排出的高压气体,将被烤化成汽化的冷冻油气排出,直到除尽冷凝器中残存的油为此。蒸发器的油堵,可将蒸发器连同低压高及毛细管一起拆出,再将低压管与氮气瓶连接起来,用压力氮气一边冲吹一边烘烤低压管、蒸发器及毛细管,便可将残存其中的油冲洗干净。
济南空调维修
  Firstly, open the pipeline, bake each welding place with neutral fireworks, then bake the low-pressure suction pipe, process pipe and the welding joint of the drying filter separately, and then pull them out. Then start the compressor, then use low temperature flame to bake the high pressure exhaust pipe and condenser (starting from connecting the compressor end) using the high pressure gas discharged by the compressor, will be baked into vaporized refrigerated oil and gas discharged, until the remaining oil in the condenser is removed for this purpose. The oil plug of the evaporator can be removed together with the low pressure, high pressure and capillary, and then the low pressure tube is connected with the nitrogen cylinder. The remaining oil can be washed out by flushing and baking the low pressure tube, evaporator and capillary at the same time with the pressure nitrogen.
  如蒸发器不能拆下,也可将靠压缩机端的低压管焊下,启动压缩机,同时用手堵住低压管口,待感觉堵不住时突然分开手,使油随气体一起排出,如此反复喷射几次即可。
  If the evaporator can't be removed, the low-pressure pipe at the compressor end can be welded down to start the compressor. At the same time, the low-pressure pipe mouth can be blocked by hand. When the evaporator can't feel blocked, the hands can be suddenly separated so that the oil can be discharged together with the gas, so that it can be repeatedly injected several times.
  以上内容由济南空调维修厂家整理发布,更多详细内容可以点击我们的官网进行咨询:
  More details can be consulted by clicking on our official website: .

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