Spray nozzle, spray nozzle array and spray cooling device

Abstract

The invention discloses a spray nozzle, a spray nozzle array and a spray cooling device. The spray nozzle comprises a mixing cavity, a reducing passage, a water distribution passage and a cross flow passage, wherein a nozzle is formed in one end of the mixing cavity, and a gas liquid mixing input port is formed in the other end of the mixing cavity; a gas-liquid two-phase mixture flowing out of the gas liquid mixing input port is mixed in the mixing cavity and is ejected out of the nozzle in a mist spraying manner; a gas outlet of the reducing passage communicates with the gas liquid mixing input port; the water distribution passage communicates with the gas liquid mixing input port; the cross flow passage communicates with the water distribution passage; a water inlet is formed in the cross flow passage; and the water flow flows into the gas liquid mixing input port through the water inlet, the cross flow passage and the water distribution passage in sequence to be mixed with the air so as to form the gas-liquid two-phase mixture. The spray flowing direction of the spray nozzle and the flowing direction of cooling blast of a condenser of an air cooling unit form a set angle, so that the temperature of the cooling blast is reduced, the relative humidity of the cooling blast is increased, and the refrigeration performance coefficient EER of the air cooling unit can be remarkably increased.

Description

Technical field [0001] The invention relates to the technical field of air-cooled unit refrigeration, in particular to a nozzle, a nozzle array and a spray cooling device for reducing the temperature of the cooling airflow of the condenser of the air-cooled unit. Background technique [0002] Air-conditioning is one of the indispensable equipment in modern buildings. According to the cooling method of the condenser, it is generally divided into two types: water-cooled and air-cooled. Although the coefficient of performance EER (Energy Efficiency Ratio) (EER=2.4-3.5) of air-cooled units under the same cooling capacity is lower than that of water-cooled units (EER=3.8-4.4), because of its It has the advantages of simple and compact system, small investment, convenient installation, etc. In the current air-conditioning sales market, air-cooled units account for more than 25% of the market, and it is showing an increasing trend year by year. [0003] In the summer cooling process, the...

AI Technical Summary

Problems solved by technology

Relevant research results show that as the ambient temperature increases, the EER of the air-cooled unit presents a gradually decreasing trend. For every 1°C increase in the ambient temperature, the EER will decrease by 0.035-0.075; and the higher the ambient temperature, the greater the reduction in EER. Large; in the case of extreme high temperature, the air-cooled unit may even have "thermal protection" shutdown and difficulty in starting

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