亚洲av国产av综合av卡,天堂а√在线最新版中文,少妇午夜性影院私人影院成都,午夜亚洲av日韩av无码大全

Spiral plate heat exchanger is a kind of high-efficiency heat exchange equipment, suitable for steam-vapor, vapor-liquid, liquid-liquid, heat transfer to liquid. It is suitable for industries such as chemistry, petroleum, solvents, medicine, food, light industry, textiles, metallurgy, steel rolling, and coking.

Structure and performance

1. This equipment is made of two rolls to form two uniform spiral channels. The two heat transfer media can flow in full countercurrent flow, which greatly enhances the heat exchange effect. Even with two small temperature difference media, it can reach the ideal The heat transfer effect.

2. The connecting pipe on the shell adopts a tangential structure, and the local resistance is small. Because the curvature of the spiral channel is uniform, there is no big turning of the liquid flow in the equipment, and the total resistance is small. Therefore, the design flow rate can be increased to make it more High heat transfer capacity.　

3. The spiral plate heat exchanger can be divided into PN0.6, 1.0, 1.6, 2.5MPa according to the nominal pressure (refers to the maximum working pressure that a single channel can withstand). According to the material, it can be divided into carbon steel and stainless steel. Users can choose according to actual process conditions.　

4. When a single device cannot meet the requirements for use, multiple devices can be used in combination, but the combination must meet the following requirements:

The parallel combination, series combination, equipment and channel spacing are the same. Mixed combination: One channel is connected in parallel and one channel is connected in series.