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Reheat the main steam valve

Reheat the main steam valve

The reheat main steam valve is one of the important components used in steam turbines, and its function is to control the inflow and outflow of steam during the working process of the steam turbine to achieve high-efficiency energy conversion.

  • Brand name :

    SANXIN
  • Weight :

    5.6t

The reheat main valve is located between the turbine's high-pressure cylinder and the medium-pressure cylinder, and is typically installed at the reheater outlet. Its main function is to control the flow and pressure of the reheat steam to ensure the stability and uniformity of the reheat process. Reheat refers to the reheating of part of the exhaust steam to a higher temperature after the exhaust of the high-pressure cylinder is completed, and then enters the medium-pressure cylinder again for expansion to drive the rotor of the steam turbine to rotate. Through the reheat process, the thermal efficiency of the steam turbine can be improved and the fuel energy can be better utilized.

The reheat main steam valve usually consists of a valve body, bonnet, spool and control device. The valve body and bonnet are usually made of high-temperature, high-pressure alloy materials to withstand the action of high-pressure steam. The valve core is a key component to control the steam flow, and the steam inlet and outlet are regulated by controlling the opening and closing degree of the valve core, so as to control the load and effect of the steam turbine. The control unit is responsible for monitoring and controlling the position and movement of the valve spool to ensure the normal operation of the reheat main valve.

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