| Bulk beverage vending machine is a new product of the Limited by Share Ltd of Qingdao AUCMA automatic vending machine,it is designed according to the market development trend and customer’s requirements.Although the vending machines in Europe and America as well as Japan and South Korea and other countries have been quite common,and with a wide variety.But in our country,The number and type of vending machine on the market is still quite small,compare with Europe and the United States and other countries,the technology is also considerable lag,Therefore the vending machine’s developmen has the very big market potential in our country.In the future,diversification,intelligence,universality will become the development direction of the vending industry.The overall structure of the bulk beverage vending machine in designed which is according to customer requirements and automatic vending machine design requirements is first introduced in this paper,Including the overall layout,cup cover device,washing system,insulation liner,refrigeration system,control system.Then use the parametric modeling software Pro/E to establish the physical model of the automatic vending machine.And then,the continuity equation,momentum equation and energy conservation equation of the steam flow in the flushing pipeline are derived,the combined with the state equation and the enthalpy equation of real gas constitute the mathematical model of saturated steam flow in the flushing pipeline,Combined with the actual situation,This paper does not consider the steam’s phase change and friction factors in the flow process,thus simplifying so that it can directly solve the model;Then use FLUENT software to simulate and analyze the longest pipeline and the shortestpipeline in five lines,selection of steam temperature is 400 K,pressure is 0.3MPa.The results of simulation analysis can be seen that the state of the steam cleaning beverage pipeline can meet the requirements of the pipeline cleaning.After that,using the Workbench ANSYS software to simulate the heating effect of the preliminary design of the heating tube,then using the optimization design of Explorer Design module to optimize the heating pipe,analysis the influence of the heating pipe’s every dimension to the heating effect,and according to the objective function to select the optimal design scheme.In the end,the control part design of bulk beverage vending machine is used PLC control,according to the PLC programming method to select the appropriate PLC model and draw up the main modules’ program. |
