For food, chemical industry, metallurgy, construction, and so on industry commonly used air-cooled chiller / water cooling machine can use of plate heat exchangers. And in the early 1970s appeared this heat exchanger, it has compact structure, small volume, strong and low cost characteristics, mainly by the dozens and hundreds of pieces of concavo convex lines on stainless steel or other metal sheet composition.
Industrial cold water machine, the plate heat exchanger between adjacent plates of different patterns, uneven, that is, to ensure that the the two fluid flow diversion of the cross flow, and the formation of the many points of contact, will these contact points all the vacuum welding will become good heat transmission, compact structure of plate heat exchanger.
And traditional tube for heat exchanger compared. When used in condenser and evaporator, the size and weight of the plate heat exchanger is one sixth of the traditional tube. Therefore, the plate heat exchanger is generally use stainless steel materials, and under the High Vacuum Brazed, so it has high strength. The main advantages are as follows:
1, the volume is small, the weight is light. When used for cooling system of condenser and evaporator, plate heat exchanger is conventional for one sixth of the volume and weight of the heat exchanger to 1 / 5.
2, high work pressure. Plate heat exchanger except the edges, concavo convex contact point plate between the solder was also carried out, so a lot of solder joints, high strength, resistant to high pressure, some companies of the plate heat exchanger allows pressure to 3Mpa.
3, a small amount of refrigerant demand. The heat exchanger has the advantages of small volume, so the demand for small refrigerant. Some of the plate heat exchanger refrigerant demand only the traditional shell and tube type 1/4;
4, not easy to freeze. The concave convex pattern of complex heat exchanger, cooling water flow height disorder, not easy to freeze. Even if there are local icing, also can use. As compared with the traditional heat exchanger shell and tube heat exchanger can bear more pressure due to freezing;
5, unit is good. Parallel plate heat exchanger easy combination, in order to adapt to the requirements of heat exchanger.
At present, according to different models of cold water machine, evaporator, condenser type is not the same, these can according to different industries or the user needs to choose. In addition, East Star cold water machine shell tube type evaporator / condenser, coil type evaporator, condenser fins and are independent design and production, good quality, good effect, cold enough.