Device for adjusting homogenization of flow field and temperature field of air cooling radiator for air cooling unit

Abstract

The invention discloses a device for adjusting homogenization of a flow field and a temperature field of an air cooling radiator for an air cooling unit, and relates to the field of air cooling units. The device comprises a steam distribution pipe, wherein a downstream unit and an upstream unit are arranged below the steam distribution pipe, a frequency conversion fan is arranged below the downstream unit, the upstream unit is connected with a vacuumizing pipeline, the vacuumizing pipeline is connected with a vacuum pump, a pressure transmitter is arranged at the tail end of the steam distribution pipe, the tail end of the steam distribution pipe is connected with a vacuum adjusting pipeline, and an electric stop valve is arranged on the vacuum adjusting pipeline. The device can realize uniform distribution of the amount of steam entering each column of steam distribution pipes of air cooling remotely to ensure uniform heat exchange in the whole air cooling island, and can realize most efficient utilization of an air cooling fan and also realize heat exchange monitoring of each column of steam distribution pipes to uniformly distribute the steam entering each column of steam distribution pipes, so that the heat exchange capacity of the whole air cooling island is improved to the maximum extent, the steam exhaust pressure of the unit is reduced, and the economical efficiency of the unit is improved.

Description

technical field [0001] The invention relates to the technical field of air-cooling units, in particular to a device for adjusting the flow field and temperature field uniformity of an air-cooling radiator for an air-cooling unit. Background technique [0002] According to the Rankine cycle, thermal power plants need a cooling medium to cool the exhaust steam of the unit. In the watery areas in the south, water is used to cool the exhaust steam and the heat generated by the auxiliary equipment to ensure the stable operation of the main and auxiliary equipment and the complete operation of the Rankine cycle. . However, due to the lack of circulating water in the Sanbei region, mainstream thermal power units use large air-cooled condensers to cool the unit to exhaust steam. Direct air-cooled units can save a lot of water resources, but due to the low specific heat capacity of air, the heat dissipation area required is large. Conventional direct air-cooled condenser air-cooled ...

AI Technical Summary

Problems solved by technology

Due to the composition of the large air-cooled island, the exhaust steam of the unit is unevenly distributed in each cooling unit and finned tube bundle, resulting in a reduction in the cooling capacity of the cooling device of the air-cooled island, high exhaust pressure, and energy consumption of the unit in summer conditions. adverse effects on safety and

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