walk-in cooler tube-in-tube condenser walk-in cooler tube-in-tube condenser It is composed of two pipes with different diameters, which are mainly used for small freon air conditioner units. It is generally used in refrigeration devices with a stand-alone walk-in cooler sleeve condenser with a cooling capacity of less than 25kW. A double-pipe condenser, its outer pipe is a seamless steel pipe with an inner diameter of 50mm, and several copper pipes (called inner pipes) are sleeved inside the pipe, which are bent into a spiral shape on a pipe bender after installation. walk-in cooler refrigerant vapor enters the cavity of the sleeve from above, condenses on the outer surface of the inner tube, and the liquid flows down sequentially at the bottom of the outer tube, and flows into the walk-in cooler reservoir from the lower end. The cooling water flows in from the bottom of the condenser, and its flow direction is from bottom to top, which is opposite to the flow direction of Freon. This can achieve ideal countercurrent heat transfer, so the heat transfer coefficient is high. The inner tube of is a copper tube with longitudinal outer fins with a ribbing coefficient of 3.2. When the walk-in cooler refrigerant is R22, the heat transfer coefficient is about 930W/ (m2.K). The double-pipe condenser can be placed around the compressor without occupying a special position, and the overall size of the compression condensing unit can be reduced. The disadvantage of this kind of condenser is that the volume of condensate exists at the lower end of the tube, so that the heat transfer surface of the tube is not fully utilized, and the metal consumption per unit heat transfer area is large. The above articles are from refrigerated showcase walk-in cooler and walk-in cooler. For details, please log in: www.ihdjx.com Free Order Hotline: +86 18019567573 Contact: Mr. Shao 26066250@qq.com