Double-layer air curtain system for refrigeration storage

Abstract

The invention relates to a double-layer air curtain system for a refrigeration storage, and the double-layer air curtain system is provided with two different air curtain devices. The system is composed of a cross-flow air curtain machine, a centrifugal air curtain machine, a grating, a flow guide plate, manual-type adjusting switches, a hanging plate, a fastening screw, and a wiring terminal. In the system, the cross-flow air curtain machine is installed on the outside wall body of the refrigeration storage, a cross-flow fan is used for injecting a normal-temperature airflow so as to form an air curtain, and the air curtain is used for preventing hot air outside the storage from intruding into the storage; simultaneously, the centrifugal air curtain machine is installed on the inside wall body of the refrigeration storage, a centrifugal fan is used for injecting a low-temperature airflow, and the low-temperature airflow is used for preventing cold air in the storage from flowing outwards, and maintaining a low-temperature environment in the storage. The manual-type adjusting switches at the both sides of each of the air curtain machines are used for adjusting the air supply speed and the air supply angle of the air curtain, so that the heat-insulating effect of the air curtain can be improved. By virtue of the system, the sealing performance of the air curtain of the refrigeration storage is improved, air heat and mass exchange in the areas of the both sides of the air curtain is effectively suppressed, and an energy-saving effect is achieved; simultaneously, the system has dustproof, anti-pollution, anti-mosquito effects and the like, and is especially suitable for refrigeration storages for storing foods.

Description

technical field [0001] The invention relates to a cold storage double-layer air curtain system equipped with two different air curtain devices, which can reduce the heat and mass exchange between the external ambient air and the storage environment, improve the sealing performance of the air curtain, maintain the temperature control requirements of the cold storage, and realize the energy saving of the cold storage; To ensure the quality of the food in the warehouse; it is also a system that has the functions of dust prevention, pollution prevention and insect prevention. Background technique [0002] Cold storage is a building for storing food under low temperature conditions, and it is also an important part of the cold chain. With the improvement of the national economy and people's living standards, the refrigeration industry has developed rapidly, and at the same time caused a substantial increase in energy consumption. Therefore, it has become an important issue for t...

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Problems solved by technology

However, Ligtenburg abroad found that the heat insulation efficiency of PVC strip curtains is low, unsafe, unhygienic, and will affect the vision of forklift operators, and its blowing air curtain needs to add additional suction pipes, which not only consumes energy, but also structurally complex, prone to failure

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