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空调抽真空的方法有哪些?

来源: 日期:2019-05-13 发布人:admin
  低压单侧真空
  Low Pressure Unilateral Vacuum
  在压力测试和走漏检测的根底上,将双仪表的黄色管(具有佳负压的高压和低压计)衔接到真空泵或自制真空泵。此时,红色管衔接到T形管。在截止阀的维修口上,双向截止阀曾经翻开,三通截止阀处于三通状态。翻开空调,由于这将使系统中的水蒸发以便提取。翻开真空泵电源,关闭低压表阀门,翻开高压表阀门停止分散。
  On the basis of pressure test and leak detection, the yellow tube of double instruments (high pressure and low pressure gauge with the best negative pressure) is connected to the vacuum pump or the self-made vacuum pump. At this point, the red tube is connected to the T-tube. On the repair port of the globe valve, the two-way globe valve has been opened and the three-way globe valve is in the three-way state. Turn on the air conditioner because it will evaporate the water in the system for extraction. Open the power supply of vacuum pump, close the valve of low pressure meter, open the valve of high pressure meter and stop dispersion.
  上下压双面真空
  Upper and lower pressure double-sided vacuum
  在压力测试和走漏检测的根底上,将黄色管衔接到真空泵或自制泵送机。这时,双仪表的蓝色管衔接到低压维护口,红色管衔接到高压维护口,两个三通截止阀曾经是三通州。翻开空调,由于这将使系统中的水蒸发以便提取。翻开真空泵电源,翻开高压和低压表阀停止泵送。当真正的Li度满足请求时,关闭高压和低压表阀,拧下真空泵和表阀的衔接螺母,切断真空泵电源,泵送完毕。
济南空调维修
  On the basis of pressure test and leak detection, connect yellow pipe to vacuum pump or self-made pump. At this time, the blue tube of the double instrument is connected to the low-pressure maintenance port, and the red tube is connected to the high-pressure maintenance port. The two three-way globe valves used to be Santong Prefecture. Turn on the air conditioner because it will evaporate the water in the system for extraction. Turn on the vacuum pump power supply, turn on the high and low pressure meter valve to stop pumping. When the real Li degree meets the request, close the high-pressure and low-pressure gauge valve, unscrew the connecting nut of the vacuum pump and the gauge valve, cut off the power supply of the vacuum pump, and finish pumping.
  本身抽真空
  Vacuum itself
  拧下两个截止阀上的两个,将室内机与室外机分开,然后将双仪表的红色管直接衔接到双向阀上。 (1和L5空调能够直接衔接,不能直接衔接。针阀转换),黄色管衔接到制冷剂气缸,然后翻开第二和第三通阀。翻开空调加热(低压维护可暂时短接维护继电器,撤离然后恢复,四通阀可在夏季与紧缩机电源并联),并开端撤离。紧缩机从室外单元吸入空气,空气从三通切断阀的接口排出,而压力表显现系统内的真空。当到达真空请求时,为了避免剩余空气从紧缩机排放到三通截止阀,制冷剂能够略微充入系统,然后抽空到相应的真空度,并且分散完成了。
  Twist down two of the two globe valves, separate the indoor unit from the outdoor unit, and then connect the red tubes of the two instruments directly to the two-way valve. (1 and L5 air conditioning can be directly connected, not directly connected. Needle Valve Conversion) The yellow tube connects to the refrigerant cylinder and then opens the second and third way valves. Turn on air conditioning heating (low pressure maintenance can temporarily short maintenance relay, evacuation and recovery, four-way valve can be parallel with the compressor power supply in summer), and start evacuation. The compressor inhales air from the outdoor unit, the air is discharged from the interface of the three-way cut-off valve, and the pressure gauge shows the vacuum in the system. When the vacuum request is reached, the refrigerant can be slightly filled into the system to avoid the residual air discharging from the compressor to the three-way cut-off valve, then evacuated to the corresponding vacuum, and dispersed.

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