We measure a cold storage facilityAluminum BusbarThe standard of good or bad is considered from multiple aspects. It is not only necessary to understand the length of the aluminum distributor circuit, but also to know which expansion valve is used to ensure the uniformity of liquid supply in the aluminum distributor. Generally speaking, the length of a single aluminum distributor pipe should not exceed 40 meters, which is more appropriate.

1. What is the appropriate length for a single pathway of aluminum busbar?

The length of each passage depends on temperature and pipe diameter, with single pipes exceeding 40 meters.

2. Should the expansion valve be balanced externally or internally? Can one expansion valve supply liquid to multiple groups of parallel aluminum rows? How to ensure uniformity of the liquid supply to each group?

It is best to use one circuit with one expansion valve, so I would consider using a 32-diameter pipe to control the liquid supply volume. One set of pipes and one external balance expansion valve. The issue of liquid distribution uniformity mainly depends on the manufacturing of the distributor head. However, after the expansion valve is made with the distributor head, the resistance of each pipe is difficult to control, making it difficult to uniformly distribute low-pressure liquid after throttling.

3. Which defrosting method is better, electric heating or hot refrigerant?

As for defrosting, I personally suggest using manual hot refrigerant defrosting. The pipe defrosting is done no more than twice a year, so there is no need for a complicated automatic hot refrigerant defrost system. Electric heating defrosting is not necessary.

4. Whether the return steam pipe must be separated by vapor-liquid extraction

It is recommended that the system with the tubes as the evaporator be equipped with a gas separator. If you do so, it's best to use a sandwich type or a coil-type subcooling air distributor with a subcooling function, as this works better.

Cold storage generally undergoes defrosting, but this is not a necessary operation. It is only required to defrost the pipes once or twice a year. Avoid excessive defrosting.Yixing Xindake New Energy Technology Co., Ltd. is a professional company providing high-quality copper foil flexible connector services, trusted by customers. We welcome friends in need to come for consultation and purchase.