Suction type enhanced dehumidification structure of high-power saturated steam turbine

Abstract

The invention belongs to the technical field of steam turbine equipment and particularly relates to a suction type enhanced dehumidification structure of a high-power saturated steam turbine. The suction type enhanced dehumidification structure comprises a cylinder body, a drain joint and a drain joint group, wherein a drain hole is formed in the lower part of the cylinder body; the drain joint islocated at the bottom of a dehumidification stage with high water carrying capacity; the drain joint group is located at the bottom of a dehumidification stage with low water carrying capacity; the drain joint is welded on the cylinder body; the drain joint group comprises a pipe joint and a ring; four uniformly distributed water inlet holes are formed in the top of the pipe joint, and six uniformly distributed drain holes are formed in the bottom of the pipe joint; diameter of the drain holes is larger than that of the water inlet holes; channels are formed between the water inlet holes andthe drain holes. The suction type enhanced dehumidification structure is reasonable in structural design, safe, reliable and low in cost, internal dehumidification in the cylinder can be finished effectively, larger space is saved for arrangement of other equipment in a ship, corrosion and impact to blades and the cylinder are reduced, the service life of the steam turbine is prolonged, and powerof the steam turbine is improved.

Description

Technical field: [0001] The invention belongs to the technical field of steam turbine equipment, and in particular relates to a suction-type enhanced dehumidification structure of a high-power saturated steam turbine. Background technique: [0002] The water in the wet steam has a lot of influence on the operation of the steam turbine. The large and small water droplets formed by the wet steam will impact or even erode the inside of the steam turbine cylinder, and will cause chemical and mechanical corrosion to the stationary blades and moving blades, especially the final The corrosion problem of the cascade cascade will greatly reduce the service life. In addition, it will also increase the load of the steam turbine and affect the power of the unit. At present, the space of high-power steam turbines used in ships is limited, and simple dehumidification measures cannot effectively remove the moisture in these steams. The suction-type enhanced dehumidification structure can ...

AI Technical Summary

Problems solved by technology

[0002] The water in the wet steam has a lot of influence on the operation of the steam turbine. The large and small water droplets formed by the wet steam will impact or even erode the inside of the steam turbine cylinder, and will cause chemical and mechanical corrosion to the stationary blades and moving blades, especially the final The corrosion problem of the stage cascade will greatly reduce the service life

In addition, it will also increase the load of the steam turbine an

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