餐饮油烟净化技术中紫外光解和高压静电产生臭氧的实证研究

杨超; 林子吟; 邬坚平; 张钢锋; 何校初

doi:10.12153/j.issn.1674-991X.20210136

餐饮油烟净化技术中紫外光解和高压静电产生臭氧的实证研究

doi: 10.12153/j.issn.1674-991X.20210136

上海市环境科学研究院

基金项目: 生态环境部中日合作改善大气环境研究与示范项目

详细信息

作者简介:
杨超（1992—），男，主要研究方向为固定污染源大气污染物治理，yangcsaes@163.com

通讯作者:
林子吟(1987—)，女，工程师，博士，主要研究方向为固定污染源大气污染物治理， linzysaes@163.com

中图分类号: X701
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出版历程
- 收稿日期: 2021-04-16

An empirical study of ozone generation by ultraviolet photolysis and high-voltage static electricity in cooking oil fume purification technology

Shanghai Academy of Environmental Science

摘要

摘要: 餐饮行业的发展持续保持平稳的增长态势，同时商居矛盾、异味投诉等一系列餐饮油烟污染问题日益凸显。目前餐饮企业在治理餐饮油烟方面可选用的净化设施类型较多，紫外光解与高压静电的复合式产品在油烟净化市场上占据主导地位，然而紫外光解和高压静电在净化油烟污染的同时可能会产生臭氧的二次污染。在某实际应用场景下，对紫外光解和高压静电不同运行组合情况下的臭氧浓度进行实测分析。结果表明：紫外光解与高压静电单独使用时均会产生臭氧；相同标准设计风量下，紫外光解产生的臭氧浓度比高压静电高96%以上；相同参数的紫外线灯使用数量越多，产生的臭氧浓度越高；臭氧浓度与烹饪工况有一定相关性。
- 餐饮油烟 /
- 紫外光解 /
- 高压静电 /
- 臭氧
Abstract: The development of the catering industry continues to maintain a steady growth trend, while a series of oil fume pollution problems such as the contradiction between business and residents, odor complaints are increasingly prominent. At present, there are various types of purification facilities available for catering enterprises in the treatment of cooking oil fumes. The composite products of ultraviolet (UV) photolytic and high-voltage static electricity occupy a dominant position in oil fume purification market. However, UV photolytic and high-voltage static electricity may produce secondary pollution of ozone while purifying oil fumes. In this study, the ozone concentration under different operating combinations of UV photolysis and high-voltage static electricity was measured and analyzed in a certain practical application scenario. The results showed that both UV photolysis and high-voltage static electricity would produce ozone when used alone; under the same standard design of air volume, the ozone concentration produced by UV photolysis was 96% higher than that of high-voltage static electricity. The more the UV lamps with the same parameters used, the higher the ozone concentration produced. The ozone concentration had a certain correlation with cooking conditions.
- cooking oil fumes /
- ultraviolet photolysis /
- high-voltage electrostatic /
- ozone

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图 1 试验系统示意

Figure 1. Schematic diagram of experimental system

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图 2 紫外线灯和高压静电双开时的臭氧浓度

Figure 2. Ozone concentration with operation of both UV lamps and high-voltage static electricity

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图 3 紫外线灯和高压静电双关时的臭氧浓度

Figure 3. Ozone concentration with both UV lamps and high-voltage static electricity turned off

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图 4 紫外线灯和高压静电双开和双关情况下臭氧浓度对比

Figure 4. Comparison of ozone concentration between double-on and double-off conditions of UV lamp and high-voltage static electricity

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图 5 高压静电单独开启时的臭氧浓度

Figure 5. Ozone concentration with high-voltage static electricity operating alone

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图 6 高压静电单独开启和双关情况下臭氧浓度对比

Figure 6. Comparison of ozone concentration between high-voltage static electricity turned on alone and double turned off

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图 7 紫外线灯单独开启臭氧浓度

Figure 7. Ozone concentration with UV lamps operating alone

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图 8 14根和10根紫外线灯单独开启时的臭氧浓度对比

Figure 8. Comparison of ozone concentration between 14 and 10 UV lamps operating separately

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表 1 紫外线灯参数

Table 1. Parameters of ultraviolet lamps

管径/mm	安装长度/mm	弧长/mm	功率/W	电流/mA	电压/V
15	1 554	1 474	75	425	179

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表 2 高压静电参数

Table 2. High-voltage electrostatic parameters

过滤风速/(m/s)	荷电器直流工作电压/kV	收集器直流工作电压/kV	极板间距/mm	收集器长度/mm	气体流动阻力损失/Pa
3.5	12	6	5.9	366	≤210

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表 3 测试方案

Table 3. Test scenarios

组别	工况	紫外线灯	高压静电
A、A₁	备餐	开启	开启
B、B₁	备餐	关闭	开启
C、C₁	备餐	开启	关闭
D、D₁	停止	关闭	关闭

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