The decompression process of steam is realized by reducing valve and orifice throttling, and its decompression stage is determined by the steam pressure difference after decompression of new steam. The pressure adjustment of the pressure reducing valve is completed by the electric actuator of the large actuator, which has stable operation and long service life. According to the requirements of secondary steam set point, no matter how the primary steam pressure fluctuates, the secondary steam pressure can remain stable.

Desuperheating device: a specially designed desuperheating water atomization device using aviation dynamics technology. The power consumption of the equipment is reduced by using the power of the fluid itself. Desuperheating water is crushed into mist drops, mixed with steam, and quickly and completely evaporated, thus reducing the steam temperature.

Extended data

In order to solve the problem that sliding supports and hangers are suspended and the pipeline floats in the middle, Xi 'an Institute of Thermal Engineering redesigned and calculated the system pipeline, and selected supports and hangers, so that 6# and 8# supports were stressed and 5#, 7# and 9# sliding supports were suspended. In this way, the problem of hanging space of supports and hangers is solved, and the structural stress of desuperheater and decompressor is improved.

In order to improve the hydrophobic condition, a hydrophobic pipeline is added to the cylinder. That is to say, a 620 drain pipe is added behind the 6# support and opened when the desuperheater and decompressor are warmed up for hot standby, so as to reduce the temperature difference between the upper and lower cylinders and control the temperature difference between the upper and lower pipe sections under various working conditions, thereby reducing the pipe bending and eliminating weld cracks.

Baidu encyclopedia-temperature and pressure reducer