Thermal power plant combined ventilation direct air cooling system

A technology for thermal power plants and air cooling systems, which is applied in steam/steam condensers, lighting and heating equipment, tubular elements, etc., and can solve problems such as the fluctuation of the cooling efficiency of the condenser, the fluctuation of the steam turbine, the high distance of the equipment from the ground, and the impact on the heat dissipation efficiency. Achieving the effect of optimizing the technical approach
CN101551201AActive Publication Date: 2009-10-07孙丽
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
孙丽
Publication Date
2009-10-07

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Abstract

The present invention disclose a thermal power plant combined ventilation direct air cooling system, including hyperbolic air cooling tower, a plurality of air intake channels arranged along the circumferential direction on outboard of the air cooling tower bottom, and the air intake channel is cylandrical structure of open outer end and inner end communicated with the air cooling tower internal, inside each air intake channel is arranged with air condensator unit connected with steam turbine exhaust pipe and condensation water collecting pipe, outside air exchange heat with the air condensator unit in the air intake channel and expel from the air cooling tower. The invention sets air intake channel and the matching hyperbolic air cooling tower, and makes full use of pumping action of the air cooling tower to airflow in the premise of assuring fan activity, greatly reduce the affect if ambient wind velocity, wind direction, temperature and assure reliable and stable cooling to the heat dissipating finned tube, and provide guarantee to power generating plant stable power generation. The invention provides a feasible, optimized technology approach for present thermal power plant alteration.
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Description

technical field

[0001] The invention relates to the technical field of thermal power plant cooling, in particular to a combined ventilation direct air cooling system. Background technique

[0002] The direct air cooling system is one of the cooling methods for the steam exhausted from the steam turbine in the existing thermal power plant. The steam discharged from the steam turbine is sent to the finned tube bundle of the air-cooled condenser arranged outdoors through the exhaust pipe, and the cooling air flows outside the finned tube to condense the exhaust steam in the tube, and the condensed water obtained is sent to the heating system for recycling. Such as figure 1 As shown, the direct air cooling system usually consists of several condenser units, and each condenser unit is composed of a finned tube bundle and a large-diameter axial flow fan. Below the finned tube bundle, the finned tube bundle is directly air-cooled by a fan (also known as the air-cooled island vent...

Claims

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