The plate heat exchanger is a high-efficiency heat exchanger made up of a series of metal plates with a certain corrugated shape. Thin rectangular channels are formed between various plates for heat exchange. As the most commonly used heat exchange equipment for heating systems, plate heat exchangers directly affect the quality of external heating. So how do we judge that the heat exchanger has insufficient heat exchange during operation?
(1) The area of the plate heat exchanger
If the area of the heat exchanger is insufficient, it is an important factor that directly affects the heat exchanger. Therefore, the parameters must be confirmed and verified when designing the project.
(2) Fouling of heat exchanger
The fouling of the plate heat exchanger will reduce the heat transfer coefficient and affect the heat transfer effect, and the outlet water temperature will be low.
(3) Insufficient flow on hot side or cold side
Flow rate is the "power" of the heat exchanger. If the flow is insufficient, the temperature of the inlet and outlet on both sides will drop, and the heat exchange will also drop.
(4) Insufficient steam or poor drainage
If the amount of steam is not provided according to the selection calculation book of the board replacement, then the system demand will not be met. If the drainage is not smooth, the steam pressure will increase, causing the hot side safety valve to jump. Then the operating personnel can only reduce the amount of steam intake and operate the bypass for a long time, which greatly reduces the heat exchange efficiency of the heat exchanger.