Characteristics of spiral plate heat exchanger
Plate spacing in spiral plate heat exchanger, the ripple height or the gasket groove depth is 25% higher than normal, so that can prolong the heat exchange between the liquid on the plate, so that will make heat transfer more sufficient, increases the cold and hot medium temperature, at the same time, it can improve the thermal efficiency, small heat transfer temperature difference is only 1 ℃.
Spiral plate heat exchanger heat transfer coefficient is higher, has the characteristics of high efficiency and energy saving, because the liquid into the heat exchanger plate, between turbulence is very developed, the formation of turbulence and support the contact between the plate and there will be more close relationship, many support contact will also makes heat exchanger heat transfer capacity was improved, bearing capacity will be strengthened.
Murphy spiral plate heat exchanger plate stiffness is better. Since the thickness and width of the gasket (that is, the volume) on the much larger, in the same working pressure, the gasket on the unit volume of the pressure will also be much smaller, so the deformation is small, long service life.
Ranging from cross section of the spiral plate heat exchanger, the advantages of range for the cross section of heat exchanger is put on both sides of the plate press as fluid channel cross-sectional area of corrugated, after should also pay attention to the two pieces (A plate and B) fluid channel large cross-sectional area of the corrugated side of relatively wide flow channel, put the two pieces of plate (B plate and A plate) fluid channel cross-sectional area small ripple of A relatively narrow passage. The cross-sectional area ratio of the width and width of the channel is equal to 2:1. In most heating occasions, the flow of cold media will be larger than the flow of hot media, so that the cold media with a large flow through a wide channel, so that the hot media with a small flow through a narrow channel, in the case of a single flow, will make the flow rate of cold and hot media between the plates close or equal.
This can not only improve the heat transfer capacity of the spiral plate heat exchanger, but also improve the heat transfer coefficient. At the same time to ensure that the wide channel medium is not blocked and small pressure drop. Helical plate heat exchangers with different cross sections are arranged on one side, which makes the equipment more convenient for installation, debugging and maintenance.
Spiral plate heat exchanger heat transfer coefficient is higher, has the characteristics of high efficiency and energy saving, because the liquid into the heat exchanger plate, between turbulence is very developed, the formation of turbulence and support the contact between the plate and there will be more close relationship, many support contact will also makes heat exchanger heat transfer capacity was improved, bearing capacity will be strengthened.
Murphy spiral plate heat exchanger plate stiffness is better. Since the thickness and width of the gasket (that is, the volume) on the much larger, in the same working pressure, the gasket on the unit volume of the pressure will also be much smaller, so the deformation is small, long service life.
Ranging from cross section of the spiral plate heat exchanger, the advantages of range for the cross section of heat exchanger is put on both sides of the plate press as fluid channel cross-sectional area of corrugated, after should also pay attention to the two pieces (A plate and B) fluid channel large cross-sectional area of the corrugated side of relatively wide flow channel, put the two pieces of plate (B plate and A plate) fluid channel cross-sectional area small ripple of A relatively narrow passage. The cross-sectional area ratio of the width and width of the channel is equal to 2:1. In most heating occasions, the flow of cold media will be larger than the flow of hot media, so that the cold media with a large flow through a wide channel, so that the hot media with a small flow through a narrow channel, in the case of a single flow, will make the flow rate of cold and hot media between the plates close or equal.
This can not only improve the heat transfer capacity of the spiral plate heat exchanger, but also improve the heat transfer coefficient. At the same time to ensure that the wide channel medium is not blocked and small pressure drop. Helical plate heat exchangers with different cross sections are arranged on one side, which makes the equipment more convenient for installation, debugging and maintenance.
评论
发表评论