Some customers will ask what the state of the cold storage room is during normal operation. Today, I will give you a popular science knowledge about the normal operation of the CBFI cold storage room.
1. There should be no noise in the cylinder, only the normal and regular cold storage sound of the suction valve.
2. The suction temperature of the compressor should be 5-15℃ higher than the evaporation temperature (R22).
3. The condenser cooling water in the cold storage room should be sufficient, the water pressure should be above 0.12mpa, and the water temperature should not be too high.
4. For the new series of products, the reading of the oil pump pressure gauge should be 0.15-0.3mpa higher than the suction pressure
5. There should be no foot heating and frosting on the cylinder wall, and the surface temperature difference should not be greater than 15-20 degrees. For refrigerated or low-temperature systems, frosting of the suction pipe can generally reach the suction port; for high-temperature conditions, the suction pipe should No frost, generally dew condensation is normal.
6. The crankcase oil temperature of the fluorine refrigerator does not exceed 70 degrees, and the minimum is not less than 10 degrees. Fluorine refrigerator lubricating oil may have foam.
7. The exhaust temperature should not be too high, and the R22 product should not exceed 135 degrees. Too high close to the flash point (160 degrees) of domestic refrigeration oil will be detrimental to the equipment.
8. The condensing pressure is not easy to be too high. R22 water cooling does not exceed 1.8mpa. The condensing pressure is affected by the construction force of the cold storage and the water source, condensation method and refrigerant.
9. The oil level of the crankcase is not less than 1/2 of the horizontal centerline of the sight glass.
10. The automatic return pipe of the fluorine oil separator is normal when it is cold and hot. There should be no significant temperature difference before and after the filter of the liquid pipe cold storage, let alone frost, otherwise it will be blocked. The cylinder head should be half-cooled and half-warm, and the joints should not leak oil.
11. Hand-touched horizontal accumulators and oil separators should be hot at the top and cool at the bottom. The junction between cold and hot is the liquid or oil level. The safety valve or bypass valve should be cold at the low pressure end, otherwise the high and low pressures should flow together.
12. The evaporating pressure and suction pressure should be similar during operation, and the exhaust pressure and condensing pressure should be similar to the accumulator pressure.
13. There should be a temperature difference between the cooling water in and out. If there is no or very slight temperature difference, it means the heat exchanger is dirty and needs to be cleaned.
14. The refrigerator should be sealed, and no refrigerant or lubricating oil should be leaked. The shaft seal of the fluorine refrigerator should not have any oil dripping.
15. The temperature of the shaft seal and bearing of the refrigerator does not exceed 70 degrees.
16. Frosting or condensation on the valve body of the expansion valve is even, but there should be no thick frosting at the inlet. When the fluid passes through the expansion valve, only a dull, small sound can be heard.
17. The pointers of the pressure gauges in the system should be relatively stable and the temperature indication should be correct.
More food and medical cold storage room solution and knowledge， Pls contact by sale@icemakerchina.com.
#vegetable cold storage room #Frozen cold room for meat
IPv6 network supported
English
français
русский
español
português
العربية
Melayu
ไทย
Tiếng việt
Indonesia