Lianyungang Huaneng Electric Power has newly launched the KN type air cooler, which belongs to the bimetallic rolling plate structure and has the characteristics of good cooling effect and good anti vibration performance!

Oil cooler is a commonly used oil cooling equipment in power systems, and is also suitable for sectors such as metallurgy, chemical industry, mining, light industry, and heavy industry. Mainly used for circulating cooling in equipment lubricating oil, transmission system oil, turbine oil, and grinding kerosene oil systems.

The coil header structure of the high-pressure heater adopts a collection and distribution system with five pipe openings welded to the header. The steam side is divided into three parts: the superheated steam cooling section, the condensation section, and the hydrophobic cooling section by a partition and an inner cylinder structure. The welding position between the coil and the header is set on the outside, which makes it easy to replace the burst heat transfer tube and maintain a stable heat transfer area for the high-pressure heater during long-term operation.

The function of a high-pressure heater is to use steam turbine extraction to heat boiler feedwater, in order to improve the thermal efficiency of the unit. The device consists of two main parts: a shell and a piping system. A steam condensation section is installed at the upper part of the shell cavity, a hydrophobic cooling section is installed at the lower part, and a water inlet and outlet are installed at the top of the inlet and outlet pipes. When the superheated steam enters the shell through the inlet, it can heat the feedwater in the upper main screw tube. After the steam condenses into water, the condensed hot water can also heat part of the feedwater in the lower cooling screw tube. The utilized condensed water is drained out of the body through the drainage outlet. This device has significant advantages such as low energy consumption, compact structure, small footprint, and low material consumption. It can also strictly control the drainage water level, drainage flow rate, and reduce the drainage end difference.

The condenser is an important auxiliary equipment of the steam turbine generator unit. Depending on different conditions, the condenser can use rivers, lakes, seas, or groundwater as cooling water sources. The condenser cooling pipe is prone to corrosion and leakage during operation, which can be caused by excitation forces and thermal loads. Generally, 2-3 major maintenance periods require partial or complete replacement of the cooling pipes.