Through-flow wind curtain machine

Abstract

The invention relates to a through-flow type air curtain machine with the advantages of compact and reasonable structure, long jetting distance, high efficiency, and low noise. The through-flow type air curtain machine comprises a shell, wherein a shell end cover is respectively arranged at two ends of the shell, a dual-rotor motor is fixedly arranged in the middle part of the shell, a wind wheel is respectively connected at the two sides of the dual-rotor motor by transmission, the wind wheel comprises a wind wheel skeleton and vanes, one end of the wind wheel skeleton is connected with the dual-rotor motor, the other end of the wind wheel is arranged at the inner side the end cover of the shell in relatively rotary manner, the longitudinal section of the shell is in the shape of whistle with downward whistle mouth, the whistle mouth is an air outlet port, an air inlet port is disposed at the side wall at the lower part in the front of the shell, and a lengthened air channel is disposed at the lower part of the shell. The invention is used for high and large refrigerated warehouse, and can prevent indoor and outdoor heat exchange of cold and hot air, and prevent entrance of dust, harmful gases and pets.

Description

technical field [0001] The invention relates to an air curtain machine, in particular to a through-flow cold air curtain machine used in large-scale food refrigerators to prevent cold sources from leaking out. Background technique [0002] Air curtain machine (also known as air curtain) technology is a common wind control technology used in industrial and commercial ventilation, usually installed in cold storage, factories, shops, restaurants, pharmacies, hotels, hospitals, airports, stations and other public The environment, the upper part of the entrance and exit, and all places equipped with cooling sources and air conditioners to maintain indoor temperature, are characterized by the use of special high-speed motors to drive the cross-flow, centrifugal or axial-flow wind turbines to run at higher wind speeds. A flat jet is ejected in a certain direction to form a strong airflow barrier, which effectively maintains the indoor and outdoor air environment, prevents hot and c...

AI Technical Summary

Problems solved by technology

However, in recent years, with the continuous expansion and demand of the cold storage market, the internal net height of the single-layer cold storage has reached 9 meters or even higher from the previous 4 to 6 meters, and the cold storage door and the hallway door have also been lengthened and enlarged. The size of the door frame, so the air curtain machine designed in the past, the flow velocity of the airflow to the ground will become slower and smaller, and the airflow cannot form an effective barrier

Although increasing the power of the motor and increasing the overall size can improve the air outlet effect of the air curtain machine, it also increases noise and investment.

Images