Finned tube type evaporator

Abstract

The invention discloses a finned tube type evaporator. The finned tube type evaporator comprises a tube body, a fine and side plates; the fin comprises a first fin and a second fin; the first fin andthe second fin are both inserted in the tube body; the side plates are mounted at two ends of the tube body; and inner ribs are uniformly arranged on the inner wall of the tube body. The device is small in size, and adopts an aluminum tube to replace a traditional copper tube to reduce the device cost and the device weight; the first fin and the second fin are arranged at the external of the tubebody of the device, and the inner ribs are arranged in the tube body, so that the heat dissipating area of the overall structure is increased, the defrosting is facilitated, the influence on air flowing by frosting is reduced, normal air flowing of the evaporator is guaranteed, the heat exchange efficiency is improved, and the energy consumption is reduced; and a connecting head matched with a connecting piece is arranged at the outer end of the first fin of the device, and the outer end of the second fin disconnected with other parts is arranged as a circle, so that a finned tube is not easyto scratch objects during mounting, the strength of fins is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of evaporators, in particular to a finned tube evaporator. Background technique [0002] A refrigeration system is a system that lowers the temperature of a certain space or object below the ambient temperature and maintains it at a specified low temperature. It is widely used in industrial production and people's normal life. The refrigeration system consists of 4 basic parts, namely compressor, condenser, throttling parts and evaporator. The four parts are connected in a certain order by copper tubes to form a closed system, and a certain amount of refrigerant is filled in the system. The evaporator is a very important part of the four major components of refrigeration. The low-temperature condensed "liquid" passes through the evaporator to exchange heat with the outside air, and the "gas" absorbs heat to achieve the effect of refrigeration. [0003] However, most of the existing evaporators are tube-sheet structur...

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Problems solved by technology

[0003] However, most of the existing evaporators are tube-sheet structures, and the heat exchange tubes and fins are connected by expansion tubes. The heat exchange tubes are generally copper tubes, and the fins are generally made of aluminum. Both ends of the evaporator adopt bent heat exchange tubes. It is connected with the straight tube passing through the fins by brazing to form a sealed flow channel. The refrigerant enters through the inlet main pipe and flows out through the outlet main pipe to realize the heat exchange between the refrigerant and the air. However, the existing heat exchange tube has a large diameter , making the volume of the evaporator large, which brings inconvenience to people's use

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