LvPai tube, it is mainly used for 10 ℃ to - 45 ℃ cold storage refrigeration system, is the ideal of all kinds of food freezing and cold storage evaporator. LvPai tube heat transfer coefficient under - 40 ℃ ~ 0 ℃ evaporation temperature material 9 ~ 14 K w/m2? ℃, steel tube, heat transfer coefficient under - 40 ℃ ~ 0 ℃ evaporation temperature K material 8 ~ 13 ℃, w/m2 for cold storage () load the same situation, same LvPai pipe configuration of evaporation area is small Yu Gangpai. In addition, from the comprehensive cost of aluminum materials and advanced die casting technology, the price per unit area of aluminum tubes is higher than that of steel tubes, but the performance of aluminum tubes is much higher than that of steel tubes.

Advantages of aluminum drain pipe:

1. Good setting and high efficiency

The projection area and evaporation area ratio of the aluminum drain pipe can be one to three or one to four, so that the aluminum row is all installed on the top of the cold storage tank, so that the heat exchange capacity of the unit area is higher than the wall row efficiency, the top row has a certain cooling storage effect, the frequent start-up rate of the compressor is reduced, saving power consumption.

2. Less dry food consumption

Aluminum row is hoisted on the top of the storehouse to form direct cooling natural convection. The temperature fluctuation of the storehouse is small. 3. Light weight and convenient installation

Under the same evaporation area, the weight of the aluminum bar is one-sixth of that of the steel bar.

3. High heat transfer efficiency and remarkable energy saving effect

Aluminum has good thermal conductivity, and its thermal conductivity is 2.9 times that of iron. The heat transfer coefficient of energy-saving aluminum exhaust is 1.43 times that of steel exhaust. It only needs the top pipe to meet the cooling requirements.

4. The system is clean, extending the service life of the compressor

The inside of the aluminum tube is specially treated to ensure the inside of the tube is clean. It is made of aluminum alloy with strong anti-corrosion performance.

5. Less amount of system refrigerant

The aluminum structure is reasonable, the inner rib increases the contact area of the refrigerant, the outer fin increases the contact with the air, and the utilization rate of the refrigerant is greatly improved.

6. Reasonable structure, accelerated convection and rapid refrigeration

In the process of running the cooling system, the cold air forms the "flue effect" in the channel. The cold air accelerates the subsidence, the convection accelerates and the cooling speed increases.