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What is the operation of the refrigeration unit?

Under the normal transportation conditions, customers who transport foodstuffs, fruits and vegetables in summer can easily cause rotting, and in this case, we both knew that in the cold chain indus...
Product Introduction

Under the normal transportation conditions, customers who transport foodstuffs, fruits and vegetables in summer can easily cause rotting, and in this case, we both knew that in the cold chain industry have greatly increased the demand for refrigerated units. The use of refrigeration units in the process of keeping the products transported in a low temperature mood can relatively prolong the freshness of the products, thus effectively prevented waste and unnecessary losses.


However, even the refrigeration units is an important part of the product transportation process, there is still the question of how the refrigeration unit works so that the low temperature can be maintained for a long time?DO you guys know it?Now let me tell you about it.


First: How Does the Refrigeration Cycle Work?


1: A refrigeration cycle has four major components: the compressor, condenser, expansion device, and evaporator. The Refrigerant remains piped between these four components in the refrigerant loop.


2: Refrigerant begins as a cool vapor and heads to the first component-the compressor. The compressor is the engine of the refrigeration cycle. It consumes the most power of an HVAC system’s components and forces refrigerant through the system, As the HVAC compresses the cool, gaseous refrigerant, it transforms into a very hot and high-pressure vapor.


3: The condenser’s job is to cool the refrigerant,so it turns from a gas into a liquid, or condenses. This happens when warm outdoor air blows across a condenser coil filled with hot, gaseous refrigerant. This allows heat to transfer from the refrigerant to the cooler outdoor air, where the excess heat diffuses to the atmosphere. The condenser coils wind through the condenser to maximize the surface area of the piping-and heat transfer to the air. The refrigerant turns from a vapor into a hot liquid due to the high pressure and reduction in temperature.


4: The refrigerant then approaches the expansion device as a hot, high-pressure liquid. The expansion device is responsible for quickly driving the pressure of the refrigerant down so it can boil more easily in the evaporator. And you can see the expansion device has one sole purpose: to reduce refrigerant pressure. Because the pressure drops so rapidly at the expansion device, the refrigerant turns into a combination of a cold liquid and vapor.


5: Once the refrigerant is a cold mix of liquid and gas, it begins to move through the evaporator. The evaporator is responsible for cooling the air going to a space by boiling  the refrigerant flowing through it. This happens when warm air blows across the evaporator as cold refrigerant moves through the evaporator coil. Heat transfers from the air to the refrigerant, which cools the air directly before being vented to a space. Like the condenser coil, the evaporator coil also winds through the evaporator to maximize heat transfer from the refrigerant to the air. The low-pressure liquid refrigerant is easily boiled by the warm air blown across the evaporator and heads back to the compressor as a cool gas.


6: So in brief, refrigerant in the evaporator absorbs heat, and is expelled from the refrigerant to the outdoor air via Simultaneously, the expansion device and compressor help manipulate the pressure of refrigerant to make the cycle possible. and this is simultaneously, the expansion device and compressor help manipulate the pressure of refrigerant to make the cycle possible.


Here are the refrigeration components process that complete the cycle! As shown below:

kingclima refrigeration unit for transportation


Second: About kingclima refrigeration equipment


1.Kingclima refrigeration brand since 2002, is a set of refrigeration units for sale, development, installation as one of the professional refrigeration equipment company, over the years kingclima team adhere to the excellent quality, exquisite professional technology, unique design ideas and diversified product structure in the refrigeration equipment industry has established a good reputation,and we have won the praise of many other customers.


2. now kingclima production refigeration unit is divided into van, truck, trailer series, a full range of customer models to meet the needs of the installation of the unit, for food, chemical, electronics, logistics, biomedical, flowers, fruits and vegetables preservation, pharmaceutical refrigeration, aquatic freezing, meat processing, cold chain logistics customers to provide cold storage and freshness convenience.

Third: Refrigeration unit advantages


1.The cooling capacity is large, which can quickly cool down.


2.High efficiency and stability, long service life. 


3.In the process of use, can be adapted to a variety of different models to meet the diverse needs of Cold Chain / vehicle depot users. 


4.Small size, easy installation, simple design.


5.More friendly to the environment, low noise, low power consumption, and moderate price.


Fourth: Service


1. First-class quality and win-win cooperation” is kinclima team main policy, we welcome distributors in the cold chain industry to become our exclusive agents.


2. Provide warranty service, with a one-year warranty period,after-sales service is guaranteed.


3. Support OEM and ODM customization service.


Quick Consultation
Kingclima is a professional supplier of transportation cold chains, we have over 20 years of experience in producing refrigeration units for all kinds of vehicles including vans, trucks, trailers, etc. If you are interested in becoming our distributor, please contact us, we look forward to working with you.We also specialize in the field of parking air conditioners,we are producing electric air conditioners, engine air conditioners that could match your vehicle type, choose Kingclima and you will get the best cooling solution to meet your needs!