Precision steel tubes Welded steel tubes acc. to EN10255 24inch sch40 erw steel pipe
Top quality complete et of condenser coil with copper tube for acc
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Top quality complete et of condenser coil with copper tube for acc
Water-cooled condenser takes water as the cooling medium and takes away the heat of condensation by the temperature rise of water. Cooling water is generally recycled, but cooling towers or cooling pools should be provided in the system. According to its structure, water-cooled condenser can be divided into shell and tube condenser and casing condenser.
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It has the similar shell structure with the vertical condenser, the main difference lies in the horizontal placement of the shell and the multi-way flow of water. Horizontal condenser is widely used not only in ammonia refrigeration system, but also in freon refrigeration system, but its structure is slightly different. The cooling pipe of ammonia horizontal condenser is smooth seamless steel pipe, while the cooling pipe of freon horizontal condenser is low ribbed copper pipe. This is due to the low exothermic coefficient of freon. It is worth noting that some freon refrigerating units do not generally set up liquid storage cylinder, only using the bottom of the condenser set up a few rows of tubes, as well as liquid storage cylinder.
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The refrigerant vapor enters the cavity between the inner tube and the outer tube from the top, condenses on the outer surface of the inner tube, and the liquid flows down from the bottom of the outer tube to the liquid storage tank. The cooling water enters from the lower part of the condenser and flows out from the upper part of each inner tube successively. This kind of condenser has the advantages of simple structure, easy to manufacture, and because it is a single pipe condensation, the medium flow direction is opposite, so the heat transfer effect is good, when the water flow rate is 1 ~ 2m/s, the heat transfer coefficient can reach 800kcal/(m2? H? ℃).
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Its drawback is that metal consumption, and when the number of longitudinal pipe more, lower pipe filled with more liquid, so that the heat transfer area can not be fully used. In addition, poor compactness, cleaning difficulties, and a lot of connection elbow. Therefore, this kind of condenser has been rarely used in ammonia refrigeration equipment.
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