In the air conditioning system, we often hear VRV, VWV and VAV three nouns, so what do these three words represent? This article briefly Outlines the difference between these three words. VRV full name variable refrigerant flow system, VWV full name variable water system, VAV full name variable air volume system, they are a form of air conditioning system.
In the refrigeration process, the refrigerant is circulated in the four large parts, which absorbs heat in the evaporator and releases heat in the condenser to achieve the cooling and heating effect. If the user side heat exchanger is placed indoors, it is directly used as the end to transmit cold and heat to the room, which is equivalent to conveying cold and heat with refrigerant in the pipeline, which is the fluorine air conditioning, which is the household split air conditioning that we commonly use now. VRV can be formally understood as a split type air conditioning, by one or more outdoor units with a number of indoor unit ends, directly by the refrigerant system for indoor cooling and heating, by adjusting the flow of refrigerant in the pipeline to adapt to changes in indoor load, this is called VRV variable refrigerant flow system.
If the user side heat exchanger is not directly placed in the room, but first the cold heat is exchanged for water, and then the water is transported to the end of the room for heat exchange, which is commonly known as water air conditioning. In water air conditioning, when the indoor load changes, one is to keep the water flow unchanged, by changing the water temperature to adapt to the indoor load, this is a fixed water system. The other is to keep the water temperature unchanged and change the water flow to adapt to the end load changes, which is the variable water system, that is, the VWV system. The basic form of the end is mostly fan coil.
When the end is an air conditioning box, the power and heat transfer capacity are increased, and the air after heat transfer can be transported to various areas through the air duct, which can be understood as the final transmission of hot and cold through the air. When the indoor load changes, one can adapt to the indoor load by changing the wind temperature, called the constant air volume system. The other can keep the wind temperature unchanged, change the air volume to adapt to the load change, it is called VAV variable air volume system, the advantages can save the fan power energy consumption.
The above is the meaning and difference of the three air conditioning systems. As one of the end products of the air conditioning system, the Mixi fabric air duct can be used with the air conditioning box and the combined air conditioning unit to supply air for the target area. And after years of design and project experience, the patented product "variable air volume fabric duct system" has been successfully developed and applied to the market. The product is suitable for places that are more sensitive to temperature changes, such as incubation, cultivation and other places.
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