Method for Enhancing Air Curtain Blocking Function and Air Curtain Machine

Abstract

The invention provides a method of enhancing a separating function of an air curtain. Due to the fact that an ejection opening of an air curtain machine is provided with a mixing chamber and an air outlet flow guide device, air flow blown by fans in the air curtain machine is mixed, pressurized, shaped and guided, and therefore the air curtain is in a flat shape and is ejected at a set angle inclining toward outdoor space between the air curtain and the vertical direction. By means of the method, air pressure of the air curtain is increased, the air curtain is thin and erect and inclines toward the outdoor, and the indoor and the outdoor are effectively isolated. The invention further discloses the air curtain machine comprising an air curtain machine shell, a plurality of the fans arranged in the air curtain machine shell, the mixing chamber and the air outlet flow guide device, wherein the mixing chamber and the air outlet flow guide device are arranged at the lower end of the air curtain machine. After pressure equalization and mixing of the air curtain through the mixing chamber, the air curtain is ejected at a set angle between the air curtain and the vertical direction through the air outlet flow guide device. Due to the fact that the mixing chamber and the air outlet flow guide device are arranged at the lower end of the air curtain machine shell, separating effects of the air curtain are greatly improved.

Description

technical field [0001] The invention relates to a method for enhancing the barrier function of an air curtain and an air curtain machine. Background technique [0002] The air curtain machine is mostly installed above the entrances of shopping malls, theaters, hotels, restaurants, etc. that are refrigeration, air-conditioning, dust-proof, and heat-insulated, and is used to block indoor and outdoor air and prevent the exchange of cold and heat between indoor and outdoor air; Anti-pollution, anti-mosquito and fly effects. like figure 1 As shown, the air curtain machine in the prior art usually includes several fans 2 arranged side by side in the air curtain machine casing 1. When working, each fan 1 emits air at the same time, forming an air curtain 5 to block the indoor and outdoor. [0003] But existing air curtain has following problems: [0004] 1) if figure 2 , image 3 As shown, limited by the structure of the air outlet of the fan 2, the wind ejected by several fa...

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Problems solved by technology

[0005] 2) if Figure 4 As shown, since the air curtain 5 ejected by the fan 2 is distributed in a trapezoidal involute as it moves away from the air outlet, the stiffness of the air curtain 5 gradually decreases, and the wind pressure decreases near the ground, reducing the ability to block mosquitoes and odors.

[0006] 3) Since the air curtain 5 blows vertically downward to the ground, after the air reaches the ground, mixed flow, eddy current, and backflow are formed before and after the air curtain 5. The wind speed and wind pressure make the lower part of the air curtain static, which greatly weakens the barrier effect of the air curtain 5, and even completely loses the barrier effect of the air curtain within 50 cm of the ground.

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