A ground simulation method of two-phase fluid circuit for patrol

Abstract

The invention discloses a ground simulation method for a two-phase fluid circuit for a patrol device. The method is to adjust the liquid storage, evaporator and steam pipeline on the basis of maintaining the connection relationship of each part in the two-phase fluid circuit: the storage The cross-sectional area A of the liquid container is increased to 6A; the evaporator is moved up vertically and fixed on the side plate of the patrol device, so that when the control valve is closed, the adjusted liquid level distance of the liquid working medium in the liquid container evaporates In the two-phase fluid circuit, H at the bottom of the receiver is the height of the liquid working medium in the receiver from the bottom of the evaporator before the control valve is opened; keep the length of the steam pipeline, and ensure that the steam on the top plate of the inspector Under the condition that the height of the pipeline from the top plate of the inspector remains unchanged, the part of the steam pipeline is adaptively bent and deformed.

Description

technical field The invention belongs to the field of spacecraft control, and in particular relates to a ground simulation method of a two-phase fluid circuit for a patrol device. Background technique After landing on the lunar surface, the rover needs to spend many cold and long moon nights without energy supply during the mission cycle. Its "moon night survival" is the biggest challenge for the rover's thermal control subsystem. In order to solve the huge difficulties and challenges of "dramatically changing thermal environment" and "moon night can not provide power supply" faced by the patrol, and to realize the temperature control of the instruments and equipment in the patrol, a two-phase fluid circuit is designed in the patrol. The two-phase fluid circuit on the lunar surface is shown in Figure 1, including a liquid reservoir 1, a liquid pipeline 2, two control valves 3, an evaporator 4, a condenser pipeline 5, and a vapor pipeline 6. The liquid reservoir 1 is instal...

AI Technical Summary

Problems solved by technology

The performance of the two-phase fluid circuit needs to be tested on the ground. Considering that the lunar surface has a different mechanical environment from the ground, in order to simulate the same mechanical environment, the method of simulating a micro-gravity field is often used, such as free-fall towers, aircraft weightlessness flight etc. When performing the experimental verification of a two-phase fluid circuit, a working condition requires tens of minutes to several hours, and the method of simulating the microgravity field can provide very limited experimental time: the experimental time of the free fall tower is on the order of seconds , the weightless flight of the aircraft is on the order of minutes, so the method of simulating the micro gravity field is not suitable for the mechanical environment required for the ground simulation of the two-phase fluid circuit

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