Spray cooling system for large-sized steam turbine air cooling heat radiator

Abstract

The invention discloses a spray cooling system of an air-cooled radiator of a large-scale steam turbine and belongs to a spray cooling pipeline system. The spray cooling system solves the technical problems that a triangular type cooling radiation unit fails to meet the design requirement of the radiating effect due to the influences of high air temperature, gale, circumfluence of hot blast and other factors. A triangular roof truss body (7) consisting of a cooling water master pipe (3), cooling water branch pipes (4) and cooling water spraying heads is arranged in a triangular type cooling radiation unit (2) of the large-scale steam turbine; the upper ends of cooling water left branch pipes (8) and cooling water right branch pipes (9) are communicated with the cooling water master pipe (3); the upper end of a set of the cooling water left branch pipes (8) is a closed end; and four to five cooling water spraying heads of the left branch pipes with movable and adjustable spraying direction are arranged on each cooling water branch pipe. With the spray cooling system, the triangular type cooling radiation unit can meet the design requirement of radiation under the condition of various working environments and improves the operating economy of a steam turbine set.

Description

technical field [0001] The invention relates to a cooling pipeline system, in particular to a cooling pipeline system for spray cooling the air-cooled radiator of a large steam turbine. Background technique [0002] The air-cooled radiator of a large steam turbine is generally composed of several heat dissipation units, and each heat dissipation unit is generally a triangular cooling heat dissipation unit, and a steam turbine exhaust distribution pipe is arranged on the top of the triangular cooling heat dissipation unit, and the pipe transmits the steam from the steam turbine to the In the radiator, a fan is installed at the bottom of the triangular cooling and heat dissipation unit, and the wind blown by the fan performs forced air cooling on the heat dissipation unit, but this cooling method is affected by factors such as high weather temperature, strong wind, and hot air backflow. , so that the heat dissipation effect cannot meet the design requirements, and the steam tu...

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Problems solved by technology

[0003] The spray cooling system provided by the invention solves the technical problem that the triangular cooling and heat dissipation unit is affected by factors such as high ambient temperature, strong wind, and hot air backflow, so that the heat dissipation effect cannot meet the design requirements, resulting in the load-limited operation of the steam turbine unit.

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