Phase change energy-storage heat exchanger

Abstract

The invention discloses a phase change energy-storage heat exchanger. The phase change energy-storage heat exchanger comprises a heat exchanger shell composed of a heat exchanger framework, a heat exchanger upper cover plate and a heat exchanger lower cover plate; a plurality of micro-channel parallel flow flat tubes and outer loop fluid channels are mounted in the heat exchanger shell; a phase change material layer is arranged between every two adjacent micro-channel parallel flow flat tubes in a filling mode; partition boards are welded to the two ends of the micro-channel parallel flow flattubes; flow blocking grilles are disposed on the partition boards; a plurality of fluid flow paths are formed through the flow blocking grilles of the upper and lower partition boards; each flow pathcomprises flat tubes with the number being equal to that of flat tubes in another flow path; and the width of each micro-channel parallel flow flat tube is much larger than the thickness of the micro-channel parallel flow flat tube, the interior channels of the micro-channel parallel flow flat tubes are multiple round-section or deformed-section millimeter-level parallel channels, and an inner loop fluid inlet and outlet, an outer loop fluid inlet and outlet and a phase change material filling port are welded to the heat exchanger framework. Transition connection between an inner loop and anouter loop of a fluid loop system is achieved, temperature fluctuation of a single machine (component) in a satellite can be effectively reduced, and the demand for heat control resources is lowered.

Description

technical field [0001] The invention discloses a phase change energy storage heat exchanger, which is especially suitable for waste heat storage and fluid temperature control of a short-time high-power pulse working single machine ((device)) fluid circuit system. Background technique [0002] In recent years, with the development of high and new technologies such as aerospace technology, information and electronic technology, MEMS technology, biotechnology and life sciences, the power consumption of various types of single-machines is increasing. And most electric stand-alone machines (especially electric stand-alone machines on satellites) work intermittently, producing a large amount of waste heat in a short working period, and need to maintain a certain temperature during the intermittent working period. [0003] The traditional passive thermal control method mainly uses a large enough heat dissipation surface to ensure that the heat can be dissipated in time when the sin...

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Problems solved by technology

However, this thermal control method not only requires the configuration of a large-flow, high-lift drive pump, which leads to an increase in the system's demand for resources such as weight and power consumption; it also requires the configuration of a temperature control valve (or solenoid valve) and a bypass circuit to adjust The fluid flow flowing through the heat sink of the electric unit will greatly increase the complexity of the fluid circuit system and reduce the reliability and stability

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