A Novel Evaporator Structure and Its Application

Abstract

The invention belongs to the field of an evaporator, and particularly discloses a novel evaporator structure and application thereof. The novel evaporator structure comprises an upper shell, a heating surface and a capillary core, wherein an opening of the upper shell is connected with the heating surface, a groove is formed in the top of the upper shell, an outlet and an inlet are formed in a left side and a right side, a plurality of ribs are arranged at one side, facing a closed space, of the heating surface, stream channels are formed among the ribs, a rib plate is arranged on the stream channels and is connected with the groove, an air collection cavity is encircled by the heating surface and one side, near to the outlet, of the upper shell, the capillary core is accommodated in the upper shell and is partitioned by the rib plate, one surface of the capillary core is in close contact with the heating surface, the other surface of the capillary core and the upper shell of the evaporator form a closed cavity to be used as a compensation cavity, the compensation cavity is partitioned into two cavities by the rib plate, and a diversion hole is formed in one side, near to the inlet, of the rib plate and is used for communicating the two cavities. By the novel evaporator structure, the problems that the loading capacity of the evaporator is limited and the evaporator is easy to deform during the heat dissipation process of a large-area hot source can be effectively solved, and the novel evaporator structure has the advantages of a good heat dissipation effect, high heat dissipation efficiency and the like.

Description

technical field [0001] The invention belongs to the field of evaporators, and more specifically relates to a novel evaporator structure and its application. Background technique [0002] Loop heat pipe (LHP) is a high-efficiency two-phase thermal control device, which has the advantages of long transmission distance, small heat transfer temperature difference, no moving parts, and no noise. It has become an important means of heat dissipation for ground and aerospace electronic devices. As a split heat pipe, LHP has a simple working principle, specifically: the heating surface of the evaporator is attached to the heat source, the heat is introduced into the steam channel next to it through the heating surface, and the liquid working medium passes through the steam channel on the surface of the capillary core. Steam is generated by evaporation. The steam enters the steam pipeline along the steam channel, and then reaches the radiator (condenser) to release the sensible heat c...

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention proposes a new type of evaporator structure and its application. Research and improvement can effectively solve the problem of limited pressure-bearing capacity and easy deformation of the evaporator in the heat dissipation process of large-area heat sources. This new evaporator structure not only retains the advantages of the small flat-plate LHP system, but also broadens the range of working fluids for the LHP system. , for ground electronic devices and equipment with large heat sources in aerospace, such as satellite TR components and power amplifiers, applying the new evaporator structure to the flat-plate LHP system has the advantages of good heat dissipation and high heat dissipation efficiency

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