Double-cooling type closed cooling system

Abstract

The invention relates to a double-cooling type closed cooling system. An exhaust barrel is internally provided with a fan chamber; a fan is arranged in the fan chamber; an air inlet of the fan is communicated with the outside of the exhaust barrel; the top of the exhaust barrel is provided with an exhaust window; a coil pipe system is arranged in the exhaust barrel; a hot fluid inlet of the coil pipe system is arranged at the upper part, and a cold fluid outlet of the coil pipe system is arranged at the lower part; a dry fin cooling coil pipe in the coil pipe system is arranged at the uppermost part in the exhaust barrel; a spray device is arranged just under the dry fin cooling coil pipe; an evaporative coil pipe in the coil pipe system is arranged just under the spray device; the bottom of the exhaust barrel is provided with a water receiving groove; a drain outlet is formed in one side of the lower part of the water receiving groove; and the drain outlet is connected with a water inlet of the spray device by a spray pump and a circulation pipeline. According to the double-cooling type closed cooling system, the dry fin cooling coil pipe is used for cooling the hot fluid for the first time, and then the cooled hot fluid enters the evaporative coil pipe and is cooled by the spray water and the dry cold air, so that the cooling efficiency is improved; and filler is added into the exhaust barrel, so that the retention time of the cooling water can be prolonged, and the cooling effect is improved.

Description

technical field [0001] The invention relates to a double-cooling closed cooling system, which belongs to the technical field of cooling equipment. Background technique [0002] Closed cooling tower is a commonly used cooling equipment in production. Generally, a tubular heat exchanger is placed in the tower, and the cooling effect is guaranteed through the heat exchange of circulating air, spray water and circulating water. Because it is a closed cycle, it can ensure that the water quality is not polluted, which protects the efficient operation of the main equipment and improves the service life. When the outside temperature is low, the sprinkler system can be stopped to save water. With the implementation of national energy conservation and emission reduction policies and the increasing scarcity of water resources, closed cooling towers have been widely used in iron and steel metallurgy, power electronics, machining, air conditioning systems and other industries in recent ...

AI Technical Summary

Problems solved by technology

However, in some occasions with relatively high cooling requirements, the existing closed cooling tower cannot meet the requirements. If the cooling capacity needs to be enhanced, the volume of the cooling tower must be increased, which will be greatly limited by the installation space.

Images