Reverse flow heat mass exchanging device with rain-free region

Abstract

The invention relates to the technical field of heat ventilating and air conditioning, belongs to the improvement of a structure in an evaporation refrigerating device, and in particular relates to a reverse flow heat mass exchanging device with a rain-free region. The exchanging device comprises an air outlet, a spray device, a heat mass exchange are, an air inlet, a water storage device and a gas-liquid separating device, wherein the air outlet is arranged at the upper part of the a chassis; the spray device and the heat mass exchange area are sequentially arranged below the air outlet; the air inlet is arranged at the lower part of the chassis; the water storage device is arranged in the chassis; the gas-liquid separating device which is provided with an air flow channel and a water collecting groove for collecting spray water is arranged below the heat mass exchange area and above the air inlet, and a surface air cooler is arranged at the bottom of the gas-liquid separating device; and a water outlet at the end part of the water collecting groove of the gas-liquid separating device is connected with the water storage device. By utilizing the exchanging device provided by the invention, not only can the air flow resistance be reduced, the gas-liquid separation effect is good, the rain-free region is formed below the heat mass exchange area and the heat mass exchanging efficiency is high, but also the structure is compact, the appearance size of the device can be reduced, and the space utilization ratio of the device can be improved.

Description

technical field [0001] The invention relates to the technical field of heating, ventilating and air conditioning, and belongs to the structure improvement of evaporative cooling equipment, in particular to a countercurrent heat and mass exchange device with a rain-free zone. Background technique [0002] In the process of heat and mass transfer, it is often necessary to transfer heat and mass between the system and its surroundings or between different parts of the same system. This kind of equipment whose basic purpose is to transfer heat and mass between two fluids is called It is heat and mass exchange equipment, which can be divided into partition wall type, direct contact type, heat storage type and heat pipe type according to the basic working principle of heat and mass exchange equipment. [0003] In the field of HVAC, for the equipment with gas-liquid mixing and separation function, the most practical application is direct contact heat and mass exchange equipment, ty...

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Problems solved by technology

[0006] Among all the above-mentioned devices with gas-liquid mixing and separation, due to the low heat and mass exchange efficiency of the cross-flow type, when the counter-flow type is realized, a rain zone is inevitably formed in the lower part of the heat-mass exchange area, which makes the pretreatment of the incoming air flow The setting of the equipment is not easy to realize, which increases the overall shape coefficient of the unit accordingly

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