Rotary type double-sided annular loop heat pipe evaporation heat radiator

Abstract

The invention discloses a rotary type double-sided annular loop heat pipe evaporation heat radiator. The rotary type double-sided annular loop heat pipe evaporation heat radiator comprises a closed working cavity formed by a shell. An annular liquid absorption core capable of rotating circumferentially is mounted in the working cavity through a positioning seat with an arc surface on the inner side, and an independent compensation cavity is formed on the inner side of the inner arc surface of the annular liquid absorption core. The annular liquid absorption core is connected with a motor for controlling the annular liquid absorption core to rotate according to the temperature of a heating surface through a liquid absorption core rotating hub mounted on the inner arc surface of the annular liquid absorption core. An independent lower evaporation cavity is formed in the lower portion of the working cavity. An independent upper evaporation cavity is formed in the upper portion of the working cavity. An upper liquid absorption core is mounted in the upper evaporation cavity. The inner arc surface of the upper liquid absorption core is provided with a steam outlet channel. According to the rotary type double-sided annular loop heat pipe evaporation heat radiator, the rotary type annular liquid absorption core is used in cooperation with the upper liquid absorption core to realize the purpose that a loop heat pipe has the double-side simultaneous heat-radiating capacity. The high-heat load resistance and heat impact resistance of the loop heat pipe are effectively improved.

Description

technical field [0001] The invention relates to the field of thermal energy engineering, in particular to a rotary double-sided annular loop heat pipe evaporation and cooling device. Background technique [0002] In recent years, the technology of high heat flux devices in the fields of electronic product equipment, aerospace, energy and chemical industry has developed rapidly, and the degree of integration of related devices and equipment has become higher and higher, resulting in a sharp increase in the heat dissipation of single equipment and complete machines. The heat dissipation of high-load and high-power equipment has become the biggest obstacle restricting technological leaps in related fields. The loop heat pipe is considered to be a new type of heat dissipation device with good application potential and heat dissipation effect at the same time. However, due to the disadvantages of the loop heat pipe evaporator itself such as back heat conduction and heat leakage, ...

AI Technical Summary

Problems solved by technology

The loop heat pipe is considered to be a new type of heat dissipation device with good application potential and heat dissipation effect at the same time. However, due to the unfavorable factors such as back heat conduction and heat leakage of the loop heat pipe evaporator itself, it is easy to cause abnormalities in the liquid-absorbing core during operation. The phenomenon of cut-off and drying up of the evaporation chamber makes the heat generated by the cooled heat dissipation equipment unable to be taken away in a timely and effective manner, that is, the phenomenon of failure, which endangers the safety of the cooled heat dissipation equipment

At present, the loop heat pipe cannot be effectively applied to the field of high constant heat flux and non-constant heat flow heat dissipation. Currently, researchers in this field mainly focus on the optimization of the loop heat pipe system, material selection and processing, liquid-absorbing core, and filling process. However, the actual application effect is not satisfactory, and it is still unable to effectively and actively deal with the thermal load and thermal shock under the action of high constant heat flow and non-constant heat flow, and the system operates at high temperature and poor stability , limiting the further development of related industries

Images