Choosing refrigerants have what demand?

2019 - 01 - 22 a, refrigerant thermodynamic properties of refrigerant in the refrigeration system is often in the two-phase region or close to saturation state. Second, the refrigerant chemistry, safety and environmental properties of 1. Refrigerant under certain conditions, the thermal stability of the refrigerant heat temperature decomposition will happen, but in under normal operating conditions of refrigeration, due to the working temperature below the decomposition temperature of refrigerant, refrigerant is thermal stability. The highest used as refrigerant in the refrigeration system actual control temperature is affected by the kinds of working condition of cooling and lubricating oil, compressor materials and other factors limit. 2. Refrigerant and water solution at different refrigerant dissolved water is different. Of aqueous ammonia soluble in water, generated by the freezing temperature is lower than 0 ℃, so in the ammonia refrigeration system by ice jams cooling pipe, but will contact with metal material corrosion. Halogenated hydrocarbon and hydrocarbon refrigerants is difficult to dissolve in water, when the refrigerant water content more than solubility, there will be free of water; When the cooling temperature is lower than 0 ℃, free water will throttle body channel ice jams. Hydrolysis happens after water dissolve refrigerants, generate acid, corrosion of metal materials, reduce the winding of electric insulation performance. In refrigeration system, therefore, does not allow to have the free water, generally set dryer in the system. 3. Refrigerant and melting oil dissolving different refrigerant liquid and the lubricating oil solubility is different, the same refrigerant lubricating oil with different solubility is different also, some complete miscibility, sometimes almost insoluble, dissolve and some parts. In the refrigeration temperature range, R717 and R744 almost insoluble in mineral oil; R22, R152a, r114 miscibility with mineral oil part, they are in high temperature with complete miscibility, lubricating oil at low temperature stratification, a layer of oily, less a layer of oil. R11, R12, R21, R500 complete miscibility with mineral oil, the formation of homogeneous solution. Everything with polyol esters ( POE) Synthetic lubricants are mutually soluble, and mineral oil is difficult to dissolve. Note: the refrigeration system of lubricating oil is in liquid state, when the refrigerant and oil miscibility, its advantage is evaporating temperature is stable, and refrigerant in the refrigeration equipment and lubricating oil is divided into two layers, so easy to separate; Defect is in heat exchanger heat transfer surface, can form inhibit heat transfer oil film. When coolant and lubricant miscibility, won't form the oil film on the surface of the heat transfer. Lubricating oil can be infiltrated with refrigerant compressor parts, forming good lubrication conditions. However, attention should be paid to dissolve refrigerants lubricating oil viscosity decreases, under the same pressure phenomenon such as evaporation temperature rises. 4. Refrigerants for metal and nonmetal effect of ammonia on steel corrosion effect, the corrosion of copper, aluminum or copper alloy has a slight effect. But if the ammonia water, for copper and copper alloy ( In addition to the phosphor bronze) Have strong corrosion effects. Halogenated hydrocarbon non-corrosive effect of almost all metals, only for magnesium and magnesium are more than 2% of the aluminum alloy from corrosion. Halogenated hydrocarbon in the case of water will be hydrolyzed into acidic substances, have corrosion effect on metals. Therefore, water cut and oil mixture as refrigerant in the can dissolve copper. Halogenated hydrocarbon refrigerants is a good organic solvent, it is easy to dissolve the natural rubber and resin, polymer materials become soft. Inflation or bubbles. So, in the selection of refrigerating machine sealing materials and electrical insulation materials, without the use of natural rubber, resin compound, and to use halogenated hydrocarbon corrosion resistant chloroprene, chloroprene rubber, nylon, plastic and other materials. Hydrocarbon refrigerants without corrosion of metal material. Note: steel plating phenomenon: when the refrigerant in the system, when in contact with copper or copper alloy copper will be dissolved in the mixture, and then deposited on the higher temperature of steel components, form a layer of copper film, this is the so-called phenomenon of steel plating. Copper plating phenomenon in compressor crankshaft bearing surface, such as bright and clean surface of the suction and discharge valves in a particularly evident. It will affect the movement of the compressor parts fit clearance, and suction exhaust valve seal, serious when the compressor cannot work normally. 5. Electrical insulation of refrigerant in the enclosed compressor, motor coil direct contact with refrigerator, requirements refrigerant should have good electrical insulating properties. Said electric breakdown strength of refrigerant electrical insulating performance of an index. Worth mentioning is the presence of impurities, lubricating oil of the refrigerant electrical insulating strength will be reduced. 6. The safety of the refrigerant safety including toxic and combustible. 7. Environmental performance and indicators for ozone depletion ozeme depletion potential and global warming ozeme depletion potential, overall atmospheric greenhouse effect value, life, life of climatic performance.

Competitiveness policy of Hangzhou E cool refrigeration Co.,Ltd is about existing clusters as a platform for upgrading microeconomic fundamentals, where structural policies aim to change the industrial composition of an economy more directly.

Hangzhou E cool refrigeration Co.,Ltd also maintains a friendly, fair, and creative work environment, which respects diversity, new ideas, and hard work.

Consistency and simplicity go hand in hand. That means aligning Arkool with the right platforms, speaking to the right customers with the right message, and selling the right idea.

Hangzhou E cool refrigeration Co.,Ltd sells start capacitor suppliers and yet their focus on operational excellence and mastery of distributed manufacturing facilities start capacitor suppliers has made them the dominant player in the space.

Hangzhou E cool refrigeration Co.,Ltd has a number of producing line for producing air conditioner capacitor.