Frozen oil after dark on the central air conditioning has what effect?

frozen oil is used for each moving parts in the refrigeration compressor lubrication oil, referred to as 'called frozen oil, also known as lubricating oil. Our central air conditioning needs regular replacement of frozen oil to ensure smooth running of central air conditioning can be. The coldest bacteria being asked before freezing oil after dark on the central air conditioning can have what effect. Today is for everyone to look at the frozen oil how to judge.

a, what are the effect of frozen oil

in the compressor, refrigeration oil seal, main energy regulation, cooling and lubrication of the four functions.

1, the seal

frozen oil seal role in compressor, between the piston and cylinder surface in the compressor, the rotating seal is reached between the bearing, in order to prevent the refrigerant leakage.

2, energy adjustment

for refrigeration compressor with energy adjusting mechanism, can use frozen oil oil pressure as to adjust the power of mechanical energy.

3, cooling

frozen oil in the compressor lubrication between moving parts, can take away the heat generated in the process of work, to keep all the moving parts at a low temperature, so as to improve the efficiency of the compressor and the use of reliability.

4, lubrication

frozen oil lubrication in the compressor operation, to reduce the compressor running the friction and wear, so as to prolong the service life of the compressor.

2, frozen oil, why spoil

we must first clear, why frozen oil deterioration. The main reason for the metamorphism:

( 1) Mixed with water

due to infiltration of air in the cooling system, the moisture in the air after contact with the refrigerant oil mixed; Refrigerant in the moisture content is large, also can make water mixed with freezing oil. Viscosity of refrigerant oil mixed with water, reduce, cause corrosion to the metal. In the freon refrigeration system, still can cause 'ice plug' phenomenon;

( 2) Oxidation

frozen oil in use process, when the compressor exhaust temperature is higher, it is possible to cause the oxidation, especially the chemical stability of frozen oil, are more likely to be bad, after a period of time, can form residue in the refrigeration oil, make the place such as bearing lubrication go bad. Organic fillers, such as mechanical impurities mixed in the refrigeration oil will accelerate its aging or oxidation;

( 3) Frozen oil mixture of several different brands of frozen oil mixing

at this point, the causes of refrigeration oil viscosity is reduced, and even can destroy the formation of oil film, damage to the bearings. If two kinds of refrigeration oil, containing different antioxidant additive, when mixed together, it is possible to produce chemical changes, sediment formation, make compressor lubrication affected, therefore, should pay attention to when using.

( 4) Impurities in freezing oil.

three, how to judge whether frozen oil metamorphic

high quality refrigeration lubricating oil is very pure, color yellow or colorless transparent liquid.

used for a period of time in the compressor refrigeration lubricating oil will gradually become dark color, transparency will follow gradually becomes poor, cause metamorphism, metamorphism of frozen oil, its cooling and lubrication effect becomes poor, will be generated in the process of the compressor running carbon compound, it is easy to cause dirty plugging of cooling system.

( 1) Drop paper method

in a clean white paper, frozen oil out of the compressed chassis, drop on the white paper, for a while the color of white oil drops, if the oil color is very shallow and distribution is evener, explain frozen oil quality is good, can continue to use: if found white with dark dot or circle, then freezing lubricating oil has been spoiled or impurities contained too much, should consider to replace.

( 2) Correlation method

if take unused frozen oil, pour people clean the glass tube or within the cylinder stand for a period of time, as a standard sample. Then needs to determine freezing lubricating oil from the compressor, and pour one another container, the same compare with my eyes. If the frozen out of the compressor oil color, transparency, and standard of frozen embellish a color and transparency is the same as the lubricating oil, show that no metamorphism; If frozen out of the compressor oil compared with standard frozen embellish lubricating oil has the obvious difference, turn into orange or reddish brown mixed corrosion state, that freezing lubricating oil has been bad, not after continued use, a freezing lubricating oil should be replaced.

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Hangzhou E cool refrigeration Co.,Ltd undertakes all maintenance duties for air conditioner capacitor facilities and organizations and conducts all the security and surveillance for the properties.