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冷水机漏氟处理步骤

作者: 来源: 日期:2018-5-16 16:04:48 人气:423

工业冷水机在使用过程中,难免出现漏氟现象,下面给大家介绍一下如何处理

1、     测漏

1.1、    加压往制冷系统里面施加气体压力,充气口:压缩机吸气口位置;可用气体:氮气,二氧化碳、氟利昂R22(绝对禁止使用氧气),加压10-15kg/cm3

1.2、    用试漏水或泡沫浇涂可疑位置:翅片进出口处的铜弯头,分流、合并焊接位置,弯头或三通焊接处开裂,请注意是否有多个泄漏点。

2、修补

2.1、找到泄漏位置后,把制冷系统内气体排放干净。根据位置的情况进行修补,如是焊接点,则用紫铜焊条焊接,焊点需要平整光滑,焊接完成,适当进行固定或避震处理

2.2、确定泄漏点修补完成,再次加气测试,保持系统内压力15kg/cm3,重点检查修补点,并在压力表上做精准标记,观察二十四小时为宜。

3、抽真空       

3.1:再次确认没有泄漏后,把气排放,使用真空泵作真空处理,连续抽5小时以上,并保证压力表指针在-0.1以下

3.2:抽真空前,确保冷水机组水箱、换热器内的水排放干净

4、加氟(R22)

4.1:抽完真空后立即往制冷系统内加注氟利昂,直接从抽真空的单向针阀处加入,可以把氟利昂罐倒立加注,可以快速加入。

4.2:记录加注的重量,总共需要加80KG左右,当加注40-50KG时会难以再加入,这时需要开机运行加注。

4.3: 1、水箱注水,2、上电,3、压缩机运行,4、继续加氟利昂,直至加够80KG,

4.4:观察机组运行压力:出水温度15度时:低压不低于5.5/cm3左右为宜

出水温度10度时:不低于低压4.5kg/cm3左右为宜

 

 

 

Leakage fluorine treatment steps

1、leak test

1.1. Apply pressure to the refrigeration system. Available gases: Nitrogen,Carbon dioxide, Freon R22 (Oxygen prohibited), Pressure 10-15kg/cm3

1.2. 1.1, Test location: Copper elbows, turns, elbows or T-welds at theinlet and outlet of the condenser. Please note if there is more than onelocation leak.

2、repair

2.1. After finding the leak location, exhaust the internal gas. Whenusing Copper phosphorus electrode welding, the solder joint must be smooth andsmooth, and it must be well welded and fixed.

2.2. Confirm that the leakage point has been repaired, fill the gastest, maintain the system pressure 15kg/cm3, focus on checking the repairpoint, and accurately mark on the pressure gauge to observe whether it isappropriate for 24 hours.

3. Vacuum treatment

3.1. After confirming that there is no leakage, exhaust the gas, use avacuum pump for vacuum treatment, continuously pump for more than 5 hours, andensure that the pressure gauge is below -0.1

3.2. Vacuum treatment to ensure that there is no water in the tank andheat exchanger

4、Add fluoride

4.1. After vacuuming, freon is injected into the refrigeration systemand added directly from the vacuum one-way needle valve. Freon can be filledupside down and added quickly.

4.2. If it is difficult to inject, add the machine while running

4.3. 1, water tank water injection, 2 power, 3, compressor operation,4, continue to add Freon, until add enough 80KG,

4.4. Observe the unit operating pressure: when the outlet watertemperature is 15 °C, the low pressure should not be lower than 5.5/cm3.

When the water temperature is 10 °C: It is not less than about4.5kg/cm3 low pressure

 


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