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Car air conditioning is used expand a powerful person
From;    Author:Stand originally
Expand a powerful person also weighs throttle, it is the main part that forms system of refrigeration of car air conditioning, installation is in evaporator entry point, if the graph is shown 15 times, the high pressure that is system of refrigeration of car air conditioning and low-pressure dividing line are nodded. Its function is: the decompression of reduce expenditure of agent of refrigeration of high-pressured liquid state that comes from desiccator of lay aside fluid, adjust and control the dosage of liquid state refrigeration in entering evaporator, the made change that gets used to refrigeration bear, can prevent compressor happening fluid to attack a phenomenon at the same time (after the agent of liquid state refrigeration that did not evaporate namely enters compressor, be compressed, arouse compressor a powerful person extremely easily piece attaint) export steam with evaporator unusual overheat. The feeling lukewarm formula that system of refrigeration of car air conditioning uses expands a powerful person, also call heating power to expand a powerful person, it is to use the outfit feeling lukewarm bag in evaporator exit to feel the degree of superheat of refrigeration agent steam (degree of superheat is to show steam is actual temperature prep above evaporates the numerical value of temperature) , will adjust from this expand a powerful person drives spent volume, control the flow of agent of liquid state refrigeration that enters evaporator thereby. Feeling lukewarm bag and evaporator exit provide a contact, when evaporator outlet temperature is reduced, feeling lukewarm bag, capillary contract with the liquid bulk inside the antrum on film, expand mouth of a powerful person of a powerful person will close, so as to restricts refrigeration agent to enter evaporator. Contrary. If evaporator outlet temperature is elevatory, expand a powerful person measures buccal general open. So as to increases refrigeration agent flow.

Feeling lukewarm bag and evaporator must tighten intimate contact, cannot be interlinked completely with atmosphere. If the contact is undesirable, feeling lukewarm bag cannot correctly inductive evaporator outlet temperature; If sealed and lax, inductive temperature is air temperature. So, want to use a kind of special air conditioning adhesive plaster, lukewarm bag of bundle up and sealed feeling.
The feeling lukewarm formula that system of refrigeration of car air conditioning uses expands a powerful person has two kinds of forms, namely inside balance type heating power expands a powerful person and outside balance type heating power expands a powerful person.


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