Atomizing nozzle and cooling device having the same

Abstract

The invention discloses an atomizing nozzle and a cooling device having the same. The atomizing nozzle includes a matrix and a liquid inlet pipe; the matrix is provided with a gas channel; the gas channel includes a contraction section and a throat pipe section which are in sequential connection; the first end of the contraction section is connected to the throat pipe section; the cross-sectionalarea of the contraction section is gradually decreased in a direction toward the throat pipe section; the cross-sectional area of the throat pipe section is maintained unchanged in a length direction;and the liquid outlet end of the liquid inlet pipe stretches into the throat pipe section so that liquid can enter the throat pipe section. According to the atomizing nozzle, through the arrangementof the contraction section and the throat pipe section in the gas channel, a negative pressure cavity can be formed in the throat pipe section when air flow enters the throat pipe section from the contraction section to circulate, so that mist spraying can be realized by utilizing siphon action without extra arranging a water pump, and therefore, production costs can be saved; the atomizing nozzlecan realize good spraying effects, so that liquid accumulation can be avoided; and the atomizing nozzle is simple in structure, easy in processing and manufacturing and low in production cost, and has strong practicality.

Description

technical field [0001] The invention relates to the technical field of spray cooling, in particular to an atomizing nozzle and a cooling device having the same. Background technique [0002] Spray cooling technology uses atomizing nozzles to atomize the cooling liquid into droplets and spray it onto the surface of the heat source that needs to be cooled. The phase change of the liquid droplets takes away the heat of the heat source, thereby achieving the purpose of cooling the heat source. Atomizing nozzles mainly include pressure nozzles, swirl nozzles, air-assisted nozzles, ultrasonic nozzles, etc. Most of them need to be equipped with high-pressure water pumps to achieve the atomization effect. However, the spray volume of the atomizer equipped with a water pump is relatively high, which is easy to cause liquid accumulation. [0003] In the related art, an atomizing nozzle structure is proposed, including a gas transfer pipe, a liquid upper nozzle, a liquid lower nozzle,...

AI Technical Summary

Problems solved by technology

However, the pressure in the area before the Venturi tube is relatively high, and the liquid entering the device needs the power device to assist, the structure is relatively complicated, and the processing cost is high

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