Plate heat exchanger problems how to do?

Problems in the use of plate heat exchanger:

1, scaling fouling can lead to heat transfer equipment to reduce the heat transfer coefficient, serious blockage of the plate channel. The plate design of the plate heat exchanger has a large number of support points, to play spoiler (medium to medium to increase the heat transfer coefficient of turbulent flow) and pressure bearing function, solid debris and fiber easily gathering place, the side effect is that the fluid formed local stagnation generated dirt accumulated in the medium of tumor, calcium and magnesium ions in the temperature precipitation suitable easily in the tumor volume attached to grow up, to form a honeycomb scale.

Clogging and fouling are different in origin, but the effect is the same. The following measures can be adopted to alleviate the structural problems:

(1) the plate heat exchanger should not be used in dirty or easy scaling environment (unless other effective measures are added).

(2) the operating temperature should be controlled at about 50 DEG C or below to avoid the temperature sensitive to the precipitation of calcium and magnesium ions in the medium without softening the cooling water as the cooling medium.

2, pressure plate heat exchanger in use within the rated working pressure leak, in addition to the quality factor in equipment manufacturing and assembly areas, and mainly appeared in the system of non normal impact load on (water hammer, hammer), which is generally difficult to observe the phenomenon of the operator. Shock caused by the instantaneous peak pressure is usually higher than the normal operating pressure of 1 ~ 3 times, so that the plate installed in the rubber seal gasket shift, resulting in seal failure.