Snow is a popular term for refrigerant, and the main function of this substance is to make the machine that uses it have the function of refrigeration. The range of use of snow is very wide. Where refrigeration is needed, snow is used. So for these two kinds of products, the quality of snow is quite important. The following Xiaobian will introduce the price, method, and method of snow freezer.
How much is the freezer and snow
50-100, but pay attention to, if the refrigerator is short of snow, nine percent is leaking, simply add snow, do not repair the leak, add how much run, this money is wasted. (Price source network, for reference only)
Freezer and snow method
There is a small copper tube on the refrigerator compressor, which is opened by gas welding, and the snow seed (which must be the same type of snow) is screwed to the single pressure tree. Open the valve, look at the pressure gauge number, after adding a good copper pipe with pliers, with gas welding good interface and need to pay attention to is in the snow before the snow in the compressor.
How snow seeds work
The working medium in a refrigerator that completes the thermal cycle. It absorbs heat from the object being cooled at low temperatures and then transfers it to cooling water or air at higher temperatures. In the vapor compression refrigerating machine, the working medium that can be liquefied at normal temperature or lower temperature is the refrigerant, such as freon (fluorine, chlorine, bromine derivatives of saturated hydrocarbons), azeotropic mixing medium (azeotropic solution mixed by two kinds of freon in a certain proportion), hydrocarbons (propane, ethylene, etc.), ammonia, etc.; In a gas compression refrigerator, gas refrigerants, such as air, hydrogen, helium, etc. are used. These gases are always gaseous in the refrigeration cycle. In an absorption refrigerator, a binary solution of absorbent and refrigerant, such as ammonia and water, lithium bromide (molecular formula: LiBr), is used as the working medium. White cubic crystalline or granular powder, easily soluble in water) and water, etc.; Steam jet chillers use water as refrigerant. The main technical indicators of refrigerant include saturated vapor pressure, specific heat, viscosity, thermal conductivity, surface tension, etc. Since 1960, a lot of experiments have been conducted on the application of non-azeotropic mixtures, which have been used in the liquefaction and separation of natural gas. Low evaporation temperature can be obtained by single stage compression of non-azeotropic mixing medium, and cooling capacity can be increased and power consumption can be reduced. Its nature is directly related to the refrigeration effect, economy, safety and operation management of refrigeration device, so the understanding of refrigerant property requirements can not be ignored.
The above red Xiaobian gives you an introduction to the method of freezer and snow, and how much is the price of snow, and what is the main function of snow, what is the principle of work. Snow is a general term for refrigerant. There are very many types of refrigerant on the market. Different refrigerants have different temperatures and different applicable environments.
