Aircraft distributed pump-driven two-phase cooling system

Abstract

The invention relates to a distributed pump-driven two-phase cooling system for an aircraft. In the cooling system, a liquid storage tank, a pre-cooling device, a pump, a flow meter, a preheater, a first valve group, a heat source group, a condensing device, a reheater and the liquid storage tank are connected in sequence, and a first sensor group is arranged on the liquid storage tank; the second sensor group is arranged between the precooling device and the pump, and the third sensor group is arranged between the preheater and the first valve group; the fifth sensor group is arranged on the heat source group; the sixth sensor group and the seventh sensor group are arranged between the heat source group and the condensing device; the fourth sensor set is arranged between the reheater and the liquid storage tank, and the controller is connected with the sensor sets, the precooling device, the pump, the preheater, the reheater, the first valve set and the condensing device. According to the invention, the problem of cooperative heat dissipation of airborne equipment can be solved.

Description

technical field [0001] The invention relates to the technical field of aircraft environment control, in particular to an aircraft distributed pump-driven two-phase cooling system. Background technique [0002] With the continuous improvement of aircraft performance, the heat load of airborne electronic equipment and high-energy equipment is soaring rapidly. The potential of single-phase cooling technology using ram air cooling (air cooling) and antifreeze cooling (liquid cooling) has been exhausted, and it is difficult to meet Cooling requirements of aircraft on-board equipment. Therefore, there is an urgent need to develop a new heat dissipation technology that can match the ultra-high heat load of airborne equipment—pump-driven two-phase cooling technology. This technology uses the phase change of the flowing working fluid to absorb and release a large amount of latent heat. The air-cooling and liquid-cooling technology is an order of magnitude higher, which can meet the ...

AI Technical Summary

Problems solved by technology

However, in addition to the ever-increasing heat load of the aircraft, there are also many heat-generating devices on board, and the thermal load of the equipment under different missions and the heat sink of the aircraft are constantly changing, resulting in "large heat, multiple heat sources, variable loads, and variable heat." It is very difficult to realize the coordinated heat dissipation of Shen, so the current pump-driven two-phase system cannot solve the problem of coordinated heat dissipation of airborne equipment. Therefore, it is urgent to study a pump-driven two-phase system with a reasonable layout

Images