Evaporator of flake ice maker

Abstract

The invention relates to an evaporator of a chip ice machine, comprising an internal cylinder, a refrigerating channel and an external cylinder. The external cylinder is a cast layer cast on the outer wall of the internal cylinder. The refrigeration channel is cast in the wall of the external cylinder. The invention is provided with advantages of firm structure, good refrigerating effect and long service life since the external is formed by casting and the refrigerating channel is fixed in the wall of the external cylinder by casting. The external cylinder is cast by using aluminum alloy material, thereby greatly reducing weight of the external cylinder and facilitating transportation and installation.

Description

technical field [0001] The invention relates to a flake ice machine component, in particular to an evaporator of the flake ice machine. Background technique [0002] The flake ice machine is widely used in the food industry for making flake ice to keep food frozen and fresh. As the main component of the flake ice machine, the performance of the evaporator has attracted much attention. The evaporator in the prior art includes an inner cylinder, an outer cylinder, and a cooling passage arranged between the inner cylinder and the outer cylinder. The upper end of the inner cylinder is sealed and connected to the upper end cover, and the lower end is connected to the lower end cover with an ice outlet. The outer cylinder There is a cold medium inlet and outlet on the top. In order to prevent the cold medium of each layer of the refrigeration channel from being connected to each other, the ice-making efficiency of the inner wall of the evaporator will be reduced, the thickness of ...

AI Technical Summary

Problems solved by technology

The evaporator in the prior art includes an inner cylinder, an outer cylinder, and a cooling passage arranged between the inner cylinder and the outer cylinder. The upper end of the inner cylinder is sealed and connected to the upper end cover, and the lower end is connected to the lower end cover with an ice outlet. The outer cylinder There is a cold medium inlet and outlet on the top. In order to prevent the cold medium of each layer of the refrigeration channel from being connected to each other, the ice-making efficiency of the inner wall of the evaporator will be reduced, the thickness of the ice layer will be uneven, and the shape of the flake ice produced will be irregular. Spiral isolation plates are often used for welding. It is used as a cooling channel between the inner cylinder and the outer cylinder. Although this method can ensure that the cooling medium in each flow channel will not be connected with each other, as the use time increases, the welding part often leaks due to welding defects, which seriously affects the evaporation. The cooling effect of the evaporator shortens the service life of the evaporator; and the welding workload of the spiral isolation plate is large; in order to reduce the flow resistance of the cold medium, the welding part needs to be polished; the inner cylinder and the outer cylinder are easily heated during welding. Deformation, in order to prevent welding deformation, thick steel plates are required for the inner cylinder, outer cylinder and isolation plate, resulting in heavy weight of the evaporator and inconvenient handling

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