本文選題：空調(diào)加濕罐　切入點：電磁除垢　出處：《安徽工業(yè)大學》2016年碩士論文

【摘要】：精密空調(diào)是針對現(xiàn)代電子設(shè)備機房設(shè)計的專用空調(diào),它的工作精度和可靠度都要比普通的空調(diào)高的多。空調(diào)加濕罐是精密空調(diào)的重要組成部分,由于其工作原理和工作環(huán)境導致加濕罐的內(nèi)部極易行成厚厚的水垢,嚴重的影響加濕效果和精密空調(diào)的使用壽命�；瘜W除垢方法無法安全有效的去除水垢,本文引用物理除垢方法中的電磁除垢法。針對傳統(tǒng)的電磁除垢裝置具有功率小,電磁轉(zhuǎn)換效率差以及輸出頻率范圍小的缺點,設(shè)計了基于串聯(lián)諧振原理的大功率繞線式電磁除垢裝置。本文首先對電磁轉(zhuǎn)換電路進行設(shè)計,通過全橋逆變電路產(chǎn)生高頻雙極性脈沖饋入RLC電路。通過理論推導和仿真,證明了在諧振電感上可以形成高頻交變的電磁場用于電磁除垢。再對空調(diào)加濕罐的材料特性進行分析,并利用有限元分析法分析不同材料對電磁場的分布特性影響,確定了應用于精密空調(diào)加濕罐的繞線式電磁除垢裝置理論基礎(chǔ)。其次對大功率直流穩(wěn)壓電源進行設(shè)計,作為串聯(lián)諧振的雙極性脈沖源的直流饋入,并對電路中的元器件參數(shù)進行分析。為了獲得高頻的雙極性脈沖,對電力開關(guān)管進行比較并分析電力MOSFET在高頻狀態(tài)下的開關(guān)特性,設(shè)計相應的高頻驅(qū)動放大模塊。通過實驗驗證了驅(qū)動放大模塊確實能夠?qū)崟r有效的驅(qū)動MOSFET并且具有很好的高頻特性,其最大工作頻率可以達到1MHz。再次根據(jù)串聯(lián)諧振電路發(fā)生諧振時的電路參數(shù)特性,基于MC9S12XS128單片機應用模塊設(shè)計掃頻程序,通過對反饋回的電流參數(shù)進行比較可以迅速準確的檢測出電路諧振頻率,使繞線式電磁除垢裝置電磁轉(zhuǎn)換效率達到最大。最后利用設(shè)計出的工程樣機進行多組對照實驗,確定繞線式電磁除垢裝置針對PVC材料的精密空調(diào)加濕罐確實具有良好的阻垢、除垢效果。同時確定針對空調(diào)加濕罐除垢的最優(yōu)應用頻率以及最佳工作時間。
[Abstract]:Precision air conditioning is a special air conditioning system designed for modern electronic equipment rooms. Its working precision and reliability are much higher than those of ordinary air conditioners. Air conditioning humidifiers are an important part of precision air conditioning. Because of its working principle and working environment, the humidifying tank is easy to form a thick scale inside, which seriously affects the humidification effect and the service life of the precision air conditioner. The chemical scale removal method can not remove the scale safely and effectively. In this paper, the electromagnetic scaling method is used in the physical scale removal method. The traditional electromagnetic scale removal device has the disadvantages of low power, low electromagnetic conversion efficiency and small output frequency range. A high power winding electromagnetic scale removing device based on series resonance principle is designed. Firstly, the electromagnetic conversion circuit is designed. The high frequency bipolar pulse fed into the RLC circuit is generated by the full-bridge inverter circuit, and the theoretical derivation and simulation are carried out. It is proved that a high frequency alternating electromagnetic field can be formed on the resonant inductor for electromagnetic scale removal. The material characteristics of the air conditioning humidifying tank are analyzed, and the influence of different materials on the distribution of electromagnetic field is analyzed by using finite element analysis. The theoretical basis of the winding electromagnetic scale removing device used in the precision air conditioning humidifying tank is determined. Secondly, the high power DC stabilized voltage supply is designed as the DC feed in the series resonant bipolar pulse source. In order to obtain the high frequency bipolar pulse, the power switch is compared and the switching characteristics of the power MOSFET in the high frequency state are analyzed. Design the corresponding high frequency drive amplifier module. The experiment results show that the driver amplifier module can drive MOSFET in real time and has good high frequency characteristic. The maximum operating frequency can reach 1 MHz. Thirdly, according to the characteristics of the circuit parameters when the series resonant circuit occurs, the frequency sweeping program is designed based on the MC9S12XS128 single chip microcomputer application module. By comparing the feedback current parameters, the resonant frequency of the circuit can be detected quickly and accurately, and the electromagnetic conversion efficiency of the winding electromagnetic scale removal device can be maximized. It is determined that the precision air conditioning humidifying tank with winding electromagnetic descaling device for PVC material does have good scale inhibition and scale removal effect, and the optimum application frequency and working time are also determined for the air conditioning humidifying tank.
【學位授予單位】：安徽工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TB657.2

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