Spiral plate heat exchanger improves heat transfer mode
Spiral plate heat exchanger improved heat transfer, actually also is in order to improve the efficiency of the spiral plate heat exchanger and the ability to, first of all, we actually is to pay attention to, and also reduce the thickness of the plate thickness plate design, and on its corrosion resistance would have no relation, is associated with the bearing capacity of spiral plate heat exchanger equipment. If the plate is thickened, the pressure capacity of the heat exchanger can be improved.
, spiral plate heat exchanger on the plate if using combination of chevron plate, this time also is to pay attention to each other with respect to its adjacent plate upside down, on the corrugated will have to contact each other, at this point, we also is to pay attention to, actually this time also can form high density, homogeneous distribution of fulcrum, plate Angle away L and its edge sealing structure has gradually improve, make the heat exchanger equipment has the very good bearing capacity.
Murphy detachable spiral plate heat exchanger of large bearing capacity has reached 2.5 MPa, on the plate thickness for the influence on the heat transfer coefficient is relatively large, reduce 0.1 mm thick, symmetrical type plate heat exchanger, the total heat transfer coefficient increase about 600 W/(m K), non symmetrical about an increase of 500 W/(m K), under the premise of its bearing capacity satisfy the heat exchanger, which is to note should choose small plate thickness.
The spiral plate heat exchanger can improve the heat transfer energy by increasing the logarithmic mean temperature difference. Under the same working condition, the log-mean temperature difference is large in reverse flow, small in downstream flow, and the mixed flow type is between the two.
When the spiral plate heat exchanger equipment is used, the method of increasing the logarithmic average temperature difference of heat exchanger should also pay attention to the use of countercurrent or close to the countercurrent mixed flow pattern, at this time is to pay attention to the hot side of the fluid temperature should be raised as far as possible, and then should reduce the cold side of the fluid temperature.
, spiral plate heat exchanger on the plate if using combination of chevron plate, this time also is to pay attention to each other with respect to its adjacent plate upside down, on the corrugated will have to contact each other, at this point, we also is to pay attention to, actually this time also can form high density, homogeneous distribution of fulcrum, plate Angle away L and its edge sealing structure has gradually improve, make the heat exchanger equipment has the very good bearing capacity.
Murphy detachable spiral plate heat exchanger of large bearing capacity has reached 2.5 MPa, on the plate thickness for the influence on the heat transfer coefficient is relatively large, reduce 0.1 mm thick, symmetrical type plate heat exchanger, the total heat transfer coefficient increase about 600 W/(m K), non symmetrical about an increase of 500 W/(m K), under the premise of its bearing capacity satisfy the heat exchanger, which is to note should choose small plate thickness.
The spiral plate heat exchanger can improve the heat transfer energy by increasing the logarithmic mean temperature difference. Under the same working condition, the log-mean temperature difference is large in reverse flow, small in downstream flow, and the mixed flow type is between the two.
When the spiral plate heat exchanger equipment is used, the method of increasing the logarithmic average temperature difference of heat exchanger should also pay attention to the use of countercurrent or close to the countercurrent mixed flow pattern, at this time is to pay attention to the hot side of the fluid temperature should be raised as far as possible, and then should reduce the cold side of the fluid temperature.
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