Treatment of excessive pressure drop of generator radiator

Building material stores, machinery repair shops, manufacturing plants, food and beverage plants, farms, retail stores, printing shops, construction projects, energy and mining

Generator radiators have been widely used in building material stores, machinery repair shops, manufacturing plants, food and beverage plants, farms, retail stores, printing shops, construction projects, energy and mining industries, and have become the leading heat exchange equipment in urban centralized heating projects. In order to ensure the normal operation of the generator radiator and extend the service life of key components, it is particularly important to understand the failure of the generator radiator, its causes and treatment methods. The following is an explanation of the treatment method when the pressure drop of the generator radiator is too large.

The content list is as follows:
Excessive pressure drop
Reasons for excessive pressure drop
Several treatment methods
Excessive pressure drop
The pressure drop at the inlet and outlet of the medium exceeds the design requirements, or even exceeds the design value many times, which will seriously affect the system’s requirements for flow and temperature. In the heating system, if the pressure drop on the hot side is too large, it will lead to a serious lack of flow on the primary side, that is, insufficient heat source, resulting in the secondary side outlet water temperature not meeting the requirements. The above are the problems that exist in the use of generator radiators.

Causes of large pressure drop
There may be many reasons for the large pressure drop of the generator radiator. The system pipeline is not purged properly during operation, especially in the newly installed system pipeline, many dirt (such as welding slag, soil, gravel, etc.) enter the generator radiator. Due to the narrow cross-sectional area of ​​the generator radiator flow channel, the sediment and suspended matter in the heat exchanger gather in the corner holes and the inflow area, resulting in a significant reduction in the flow channel area and pressure loss. When the plate heat exchanger is first installed, the area selected is small, resulting in a large pressure drop when the flow rate between the plates is high. Since the plate requires a very narrow channel, when the heat exchange medium contains large particles or fibrous materials, it is easy to block the channel between the plates. After the generator radiator has been running for a period of time, the pressure drop is too large due to scaling on the radiator surface. The above are the reasons for the failure of the heat exchanger.