霧化式空氣清淨機的設計及製作

Design and manufacturing of Mist-typed air conditioner

黃俊凱(Chun-Kai Huang)

指導教授 ： 林水木

崑山科技大學/工程學院/機械工程研究所/碩士(2007年)

摘要

現今大樓臨立，鋼骨結構防震佳，而鋼結構需用防火、防?塗層，裝潢亦免不了，這會產生許多粉塵微粒。空調亦為節省成本，往往採用非換氣成的方式，也就是在密閉裝潢空間中循環冷氣。密閉式，可能因室內換氣不足及粉塵微粒過多，致使室內空氣品質惡化或環境不舒適，長久下來足以影響健康、造成不適，進而破壞人體免疫系統。為淨化空氣，一般採用濾網過濾，但濾網價格貴，且短期間就失效，造成成本過高。故設計一種簡單、成本低、且可有效的空氣清淨機是非常需要的。此設備除供應一般空調使用外，亦可被應用於粉塵較多的工廠。
市面上各種空氣清淨機，發現其成本都很高，噪音又大。本文設計一種成本低、噪音小的霧化空氣清淨機，並申請專利中。基本原理是利用霧化產生器，及離心式風扇送氣，並設計隔板，使產生渦流，有效混合霧氣和吸入的髒空氣，達到高效率除塵作用。霧氣流動碰到隔板時會凝結成水，且離心風扇亦有離心作用，使較重的水氣向外流動碰觸蝸卷殼凝結成水。亦配合大樓空調冷卻器，使水氣凝結，可達到除霧效果。進一步利用STAR-CD軟體針對離心式風扇流場做模擬分析，研究參數對流場影響。針對流道模擬霧氣與空氣混合情況，探討出最佳設計參數；並加工製作出此系統，進行過濾測試實驗，實驗結果顯示過濾效率可達90% 以上。

關鍵字

流場分析 ； 實驗 ； 霧化 ； 空氣清淨

並列摘要

In the modern city, a lot of super tall buildings are constructed. Almost the structures are made of steel. It is because the steel structure has an excellent earthquake-proof. However, these are necessary to coat a fire-proof layer and decorate the rooms. These designs will induce a lot of particles in the usual time. On the other hand, air conditioner in the building is required. Minimizing its cost, a closed cycle of air conditioner is usually considered. Therefore, a dirty air is recycled in the room. A filter screen is used to catch the particle in the room. But the filter screen is expansive and short-life. Obviously, it is absolutely necessary to design a simple, cheap and effective air conditioner.
It is found that every air conditioner in the market is very expansive and noisy. In this study, a quiet, cheap and effective mist-typed air conditioner is design. Moreover, its patent has being applied. The new air conditioner is composed of a mist producer, a blower, a flow channel, a cooler, and an automatic water-feeding setup. The mist producer generates very small mist particle. The blower sucks the dirty air in the room. The flow channel is design to effectively mix the dirty air and the mist particle. Therefore, this design is effective to catch the dirty particle. On the other hand, when the mixed mist colloids the baffles of the channel, it will condense. Moreover, the centrifugal force of the blower has the same effect. Finally, a cooler is set up at the outlet of the blower to condense the mist. Therefore, the moisture in the room can be kept at a low level. In this study, the numerical analysis of fluid field is made. The optimum parameters are found. Based on these, the mist-typed air conditioner is manufactured and the corresponding experiments are made. It is found that the efficiency of the mist-typed air conditioner is beyond 90%.

並列關鍵字

Analysis flow field ； Air conditioner ； Mist-typed ； Experinent

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