Fluid circuit control device suitable of nano-satellite hot control system

Abstract

The invention discloses a fluid loop control device applicable to a nano-satellite thermal control system, which comprises a heat collecting module, a fluid loop driving module, a heat-electricity converting module, and a bypass flow control module. In the fluid loop control device, a micro-channel heat exchange technique combining with a heat-electricity converting technique is adopted so that the fluid loop of a nano-satellite heat control system forms forced convection heat exchange. In tthe fluid loop control device, an initiative heat control mode including major loop self-driving and bypass auxiliary control is adopted, wherein with the initiative heat control mode, the waste heat of the nano-satellite is converted into electric energy to drive the fluid loop to perform the forced convection heat exchange so as to achieve the closed loop control of the heat control system, reduce the electric energy consumption of the nano-satellite, and achieve the temperature control inside the nano-satellite. The fluid loop control device is that micro-channel heat exchangers are arranged on a satellite borne device of the prior nano-satellite and then two ends of each micro-channel heat exchanger are connected with a conduct respectively to form a forced convection fluid loop which can reuse the heat generated in the working process of the satellite borne device, thus the energy of the nano-satellite is saved, and a condition for the nano-satellite to work for a long period is provided.

Description

technical field [0001] The invention relates to a nano-satellite thermal control device. More specifically, it refers to a fluid circuit control device based on main-circuit self-driving and bypass auxiliary control. Background technique [0002] Nano-satellites refer to micro-satellites with a mass between 1Kg and 10Kg. Due to the design concept and manufacturing process of large-scale integrated circuits, nano-satellites have the advantages of small size, light weight, and low manufacturing and launch costs. , Geological exploration, environmental and disaster monitoring, transportation, meteorological services, scientific experiments, deep space exploration and other aspects have a wide range of applications. [0003] The electrical energy required by nano-satellites is usually converted from solar energy absorbed by solar panels. On the one hand, the service time of nano-satellites in space should also consider the loss of electrical energy. However, due to the small ...

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Problems solved by technology

[0005] The traditional nano-satellite thermal control system is mainly passive, and the heat transfer in the whole process is uncontrollable. When the temperature environment of each subsystem of the nano-satellite drops, it is necessary to increase the temperature of each subsystem by means of electric heating, thereby increasing the temperature of the nano-satellite. The burden of the power subsystem, shortening the service time of the nano satellite

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