Research On Double-chamber Structure Design For Aluminum Heat Pipe Equipment

With the development of integration of solar energy and building, flat-plate solar collectors are getting attention gradually because of its inherent advantages. It’s helpful to solve many problems existing in the collector that aluminum heat pipe transfer heat instead of traditional copper tube. To ensure that the aluminum heat pipe can be based on market demand, there are higher requirements for volume manufacturing of aluminum heat pipe equipment in the actual project.In this paper, aluminum heat pipe equipment for manufacturing aluminum heat pipe is the object of study, on the basis of comprehensive understanding of the aluminum heat pipe and existing facility defects, a double-chamber system design concept is proposed as the main point. This system has two chambers, every time two chambers both work during the manufacture of aluminum heat pipe, a chamber is used for manufacturing the aluminum heat pipe, the other recovers the residual refrigerant, when the next group begins, two chambers change their position and exchange process, thus alternating cycle processes work. The main contents and results were as follows:(1)This paper firstly introduces the aluminum heat pipe’s structure, its working principle and the choice of working fluid. Compared with manufacturing technology of traditional heat pipe, from vacuuming to perfusion is determined as the manufacturing technology for aluminum heat pipe with acetone, according to practice of current aluminum heat pipe equipment, an optimization based on its prototype is derived.(2)Double-chamber system mechanical structure mainly composes of double-chamber structure, working fluid filling structure, rotating perfusion structure, hydraulic sealing mechanism and rack. According to its design features, vacuum system and residual refrigerant recovery mechanism joint design schematic is provided, and the double-chamber system to automatically control process design is completed. The automated manufacturing process instructions from feeding are presented on the basis of PLC. The aluminum heat pipe equipment after optimizing can manufacture three aluminum heat pipes once, which will improve productivity by 43%, reduce cost of the total production and ensure the manufacture quality of aluminum heat pipe, in addition, automation will be higher.(3)By ANSYS Workbench, statics and modal finite element analysis of rack and rotating frame are completed respectively, which validates that both designs meet the strength requirements under load, rack and rotating frame work stably without resonance phenomena.(4)Testing the evenness of working fluid volume through experiment after optimizing current aluminum heat pipe equipment, determining the maximum heating power for aluminum heat pipe’s performance test, the feasibility of manufacturing three aluminum heat pipes once by communicating vessels is proved. Furthermore optimum process parameters is obtained by comparing different test parameters and researching influence of the working fluid volume for heat transfer performance.