High efficiency and energy saving helical tube steam trap;

The technological alternation,such as changing drainage method,adapting the drainage pipe- lines,equipping with erupting-pipelines,by pass valve and check valve,applying muhifunctional steam trap,was conducted to ensure the roller temperature meeting the process requirement,reduce the steam consumption and realize the efficient regulation of roller temperature.

By the experiment of using steam trap of the steam heater,considering the steadiness of control process ,gave a suggestion for the choice for steam trap.

, some measures have been adopted in the revamping: (1) Adding water-collecting pipe and trap at the main steam pipeline; (2) Installing trap of reliable performance at the foot of the gantry frame along the steam pipeline; (3) Freezing-proof and condensing-proof treatment have been made on the steam pipeline of fire fighting; (4) Installing steam traps in the heaters and heat-tracing pipeli.

There were some problems existing in steam condensation water recovery system,such as equipment was expensive and low recovery rate,waste heat resource can t be recovered effectively,the reasonable allocation in trap and uncoagulate gas.

The causes of cracks on drainage flash tank of No.

Thermal economy analysis for drain cooler of thermodynamic system in power plant

Comparative calculations of different drain methods show that it is more economical and safe to use the drain cooler for the low pressure regenerative heating system of 300 MW units than to use the low pressure drain pump.

This time,design of steam cooler and drain cooler tubing system has had many changes,that compares with long since,the more rational structure,so much the better heat transfer efficiency.

Based on the development of steam automatic drain-er,investigates the applied status of automatic drainer on the domestic units and the imported units.