1. For pumps used for transporting fluids, the need for cooling water or sealing water depends on the design structure of the pump. It is also necessary: when transporting fluids at high temperatures, the resistance of the pump. the body and bearings will definitely increase. Problem, when the admissible temperature of the bearing is exceeded, the cooling of the bearing must be taken into account.
2. You said that the power plant water supply pump has seal water because the water supply pump pressure is too high. The mechanical seal of the bearing will definitely leak, so a mechanical seal is added. The goal is to reduce the internal and external pressure of the pump. The pressure gradient; the condensate water pump pressure is not high but the temperature is still there, so cooling water is added ; the pressure is not high, so there is no need to add sealing water and cooling water.
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Boiler circulation pumps and boiler feedwater pumps play different roles in the boiler system. Their main differences lie in their operating principles, functions and application scenarios. Here are the main differences between them:
Working principle:
Boiler circulation pump: Boiler circulation pump is mainly used in boiler water wall and in the internal circulation system of the boiler to transfer energy. generated by the boiler. The steam condensate circulates to various parts of the boiler to achieve efficient cooling inside the boiler. Boiler feed water pump: The feed water pumpBoiler pump is used to transport treated water (feed water) into the boiler to supplement the water consumption in the boiler and maintain the stability of the water level in the boiler.
Function:
Boiler circulation pump: Boiler circulation pump is mainly used to maintain cooling and efficient circulation inside the boiler to avoid overheating of the boiler and blockage of the pipes. The circulation pump regulates the temperature and pressure inside the boiler by supplying cooling water. Boiler Feed Water Pump: The main function of the boiler feed water pump is to supply treated water to the boiler to meet the steam generation needs. In addition, the feed water pump can also maintain the stability of the water level in the boiler by adjusting the feed water flow and pressure.entary.
Application scenarios:
Boiler circulation pump: Boiler circulation pump is mainly used in the cooling and internal circulation of boiler systems, especially in thermal power plants, industrial boilers and cogeneration. Boiler feed water pump: Boiler feed water pump is widely used in power plants, industrial boilers, heating systems and other scenarios to supply feed water to boilers to meet steam production needs.
In summary, there are significant differences in the working principles, functions and application scenarios of boiler circulation pumps and boiler feed water pumps. In practical applications, the appropriate pump equipment should be selected based on the specific needs ofu boiler system.