High efficiency ozonizer for high quality water treatment

用于高品质水处理的高效臭氧发生器

基本信息

批准号：
08650338
负责人：
YAMABE Chobei
金额：
$ 1.47万
依托单位：
Saga University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

In this research, a diffusc glow discharge generated by a double discharge us used to improve the etlicicucy of the ozone geueration. ln this method, corona dilischarge occuures in space between the cathode and the trigger electrnde covered with Pyrex glass tithe which is set in groove on the cathode. Much initial electrons are getuerated around the cathode.In present research, expermenuts were done using air (0_2/N_2 mixture) at atmospheric pressure and flue discharge recpctition frequency was I {Hz} for all expeariments. The maximnn ozone couicentration gencuated by that exjueriment was about 150 {ppm} The averange ozone yield was about 400{gO_y/kwh} that is much higler than the typical yield, about 100{gO_y/kWh}. The efficiecy of energy transfer from stoned energy in capacitor C_<"*"> to the main discharge was about 40 - 50 {%} at large stored energy.To expand the field of ozone application, efficient ozone generation is the most important problem. A double discharge in methed, whic … More h generates diffuse glow discharge at atmospheric pressure, is used in the present researchi. This methed has a larger discharge volume comparing with one of conventional methed, such as silent discharge, surface discharge and so on. Thus we expect that it is possible to get a higher concentration and to be efficient for ozone generation due to its discharge volume.Au 0_2/N_2 mixture (air) was employed as a raw gas for ozone gencration and adjusted at 2.0 {l/min} for all measurements. To get the diffuse glow discharge a rapid rise time over 0.8 {kV/ns} was required for the applied voltage arid this value gave good agreement with that obtained in preyious investigations. The generated ozone concentration increasad with, discharge repetition frequeucy and at 35 {Hz} where the deposited power of 1.4 {W}, the maximum generated ozone concentration of about 550 {ppm} was obtained. The mean ozone yield was 95 - 110 {gO_3/kWh} for all measurements. The limit of deposited power was 1.2 - 1.4 {W} due to the appearance of arcing.In the case of the rotating electrode. about 20% higher ozone concentration has been the outcome.The value of the discharge initiation voltage has been smaller for the rotating elect rode.Discharge conditions have been better in the case of rotating electrode. Less

在这项研究中，通过用于改善臭氧地球的eTlicuccy的双放电产生的分散发光放电。在这种方法中，电晕递减发生在阴极之间的太空中，触发电动覆盖有pyrex玻璃锡的电动，该玻璃玻璃置于阴极上的凹槽中。在阴极周围，许多初始电子都被固化。在目前的研究中，在大气压力和烟道排放后，使用空气（0_2/n_2混合物）进行专业人士。通过该爆炸量的最大臭氧量剂量约为150 {ppm}平均臭氧的产量约为400 {go_y/kWh}，远高于典型的收益率，约为100 {go_y/kwh}。从大量存储的能量下，从电容器C _ <“*”到主要放电的电容器C _ <“*”>的能量转移效率约为40-50 {％}。为了扩展臭氧应用领域，有效的臭氧产生是最重要的问题。本研究中使用了在大气压力下以甲基苯丙胺的双重排放。与常规的甲基苯丙胺相比，该甲基的排放量较大，例如无声排放，表面排放等。我们预计，由于其排放量，有可能获得更高的浓度，并有效地产生臭氧的浓度。AU0_2/N_2混合物（空气）作为原始气体进行臭氧测量，并以2.0 {l/min}进行调整以进行所有测量。为了使弥漫性发光放电的快速上升时间超过0.8 {kV/ns}，需要使用该值与宝贵的投资中获得的值达成了良好的一致性。生成的臭氧浓度随着排放式重复频率而增加，在35 {Hz}中，沉积功率为1.4 {W}，获得了约550 {ppm}的最大生成的臭氧浓度。对于所有测量值，平均臭氧产率为95-110 {GO_3/kWh}。由于旋转电极的出现，沉积功率的极限为1.2-1.4 {W}。臭氧浓度高约20％，是结果的结果。对于旋转的旋转骑行，排放启动的电压的值较小。在旋转电极的情况下，放电条件较好。较少的