Adjustable atomization nozzle for steam turbine

Abstract

The invention discloses an adjustable atomization nozzle for a steam turbine. The adjustable atomization nozzle comprises a threaded pipe, a water inlet pipe, a first cover plate, a second cover plate, an inner sleeve, an outer sleeve, a third cover plate and a nozzle body; one end of the water inlet pipe communicates with the threaded pipe, the other end of the water inlet pipe communicates withthe third cover plate, and the third cover plate is connected to the outer sleeve pipe to form a cylindrical inner cavity; the outer sleeve is connected to the nozzle body, and a nozzle opening is arranged at the tail end of the nozzle body; the first cover plate is arranged in a cylindrical inner cavity formed by the third cover plate and the outer sleeve, and the first cover plate is connected to an adjuster; the inner sleeve is in threaded connection with the inner wall of the outer sleeve; and the second cover plate is arranged in a flow adjusting device inner cavity formed by the first cover plate and the adjuster, the second cover plate is connected with a flow guide pipe to form a rotary cavity, the outer wall of the flow guide pipe is tightly attached to the inner wall of the adjuster and is in threaded connection with the inner wall of the adjuster, and a plurality of eccentric flow guide holes penetrating through the pipe wall of the flow guide pipe are formed in the wall ofthe flow guide pipe.

Description

technical field [0001] The invention relates to a device for steam desuperheating, in particular to an adjustable atomizing nozzle for a steam turbine. Background technique [0002] A steam turbine is a device that converts steam heat energy into mechanical energy. The steam in the steam turbine is generally in a state of high temperature and high pressure, and it is often necessary to reduce the temperature when dealing with the exhaust steam of the steam turbine. [0003] In the steam turbine condensing unit, the exhaust steam of the steam turbine will enter the condenser, and the vacuum degree of the condenser is an important factor to ensure the safe and stable operation of the steam turbine. If the steam temperature is too high, it may cause the vacuum damage of the condenser and force the turbine to stop. cause unnecessary economic losses. In addition, if the steam temperature exceeds the design temperature of the condenser itself, it may bury safety hazards in terms ...

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Problems solved by technology

[0003] In the steam turbine condensing unit, the exhaust steam of the steam turbine will enter the condenser, and the vacuum degree of the condenser is an important factor to ensure the safe and stable operation of the steam turbine. If the steam temperature is too high, the vacuum of the condenser may be damaged, forcing the steam turbine to stop. cause unnecessary economic loss

In addition, if the steam temperature exceeds the design temperature of the condenser itself, it may bury safety hazards in terms of equipment strength, which will not only affect the stable operation of the system, but also endanger the safety of use.

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