Device for pre-cooling air in air-cooling units

Abstract

An apparatus for condensing or cooling a heat carrier can be used at power, chemical or oil-refining plants. It comprises a housing, a fan, and a heat exchanger. In front of openings in the housing serving for ambient air intake, at least one water atomizing element is placed connected to an independent water source. The element is a closed contour with nozzles equally spaced along the length of the contour that is rigidly connected to the housing or secured on a base shared with the housing. Preferably, a plurality of water atomizing elements is provided arranged along the perimeter of the housing and connected by a conduit to the water source. Each element is equipped with a shut-off cock to independently service, repair or replace the element. The apparatus improves the interaction of air with the heat carrier and thus enhances the operational efficiency, especially under hot climate conditions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation-in-part of the International application PCT / RU2016 / 000073 (publication WO2016 / 148600) filed Feb. 15, 2016 and claiming priority of the Russian application 2015108829 filed Mar. 13, 2015, the both applications being incorporated herein for reference in their entirety.BACKGROUND OF THE INVENTIONField of the Invention[0002]The invention relates to air-cooling units (ACU) and can be used for condensing or cooling a heat carrier (coolant) at power, chemical and refinery plants.Description of the Related Art[0003]Structures of ACU known in the art facilitate, to a degree, the intensification of heat transfer, mainly due to increasing the heat transfer surface through enhancing air or heat carrier distribution inside the ACU. However, as it appears from the related art, the problem of cooling or condensing heat carrier during summer time under hot climate conditions, where ambient temperature goes beyond 30° C...

AI Technical Summary

Benefits of technology

The invention improves the ACU's efficiency in hot climate conditions by enhancing its interaction with air and heat. This is done by using an apparatus for cooling or condensing the heat carrier by drawing ambient air through openings, with a fan, heat exchanger, and water atomizer in front of the openings. The atomizer has a closed contour with nozzles equally spaced along its length, attached to either the housing or a separate base that's in fluid communication with a source of water. The design cools the air that flows into the ACU, making it more efficient in hot climate conditions.

Problems solved by technology

However, as it appears from the related art, the problem of cooling or condensing heat carrier during summer time under hot climate conditions, where ambient temperature goes beyond 30° C., has not been solved.

This type of ACU suffers from low efficiency of vaporizing water in the stream of air coming into the ACU and, consequently, from a low extent of air cooling.

This results in worsening heat transfer and lowering the ACU operational efficiency.

A problem with this ACU lies in its low efficiency in vaporizing water off the moisturized filtering band in a stream of air coming to the ACU, which results in a low extent of cooling the air.

Accordingly, the lesser the air volume, the lower the overall efficiency of the ACU heat transfer.

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