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| PET小包装油瘪瓶问题的技术改善 |
| Technical improvement on the problem of bottle collapse of PET small package oil |
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| DOI： |
| 中文关键词: PET小包装油 瘪瓶 进油环节 吸气量 下进下出 上进下出 |
| 英文关键词:PET small package oil bottle collapse oil inlet link suction volume bottom in and bottom out top in and bottom out |
| 基金项目: |
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| 中文摘要: |
| 针对市售5 L PET小包装油瘪瓶问题进行了研究和技术改善。从PET瓶热收缩、灌装工艺、调油罐脱臭油试验进行瘪瓶原因分析，发现瘪瓶与调油罐脱臭油吸气量高有关。通过油品吸气量检测方法对脱臭油、储存罐、调油罐、灌装首件4个进油环节吸气量进行了定量分析，结果发现：进油方式为“上进下出”的吸气量远低于“下进下出”的，因此将“下进下出”进油方式调整为“上进下出”；调油罐脱臭油吸气量控制在35 cm以下可有效避免PET小包装油产品出现瘪瓶现象。 |
| 英文摘要: |
| The problem of bottle collapse of commercially available 5 L PET small package oil was researched and technically improved.Bottle collapse reason was analyzed through three experiments including heat shrinkage of PET bottle, filling process and deodorized oil in oil blending tank,and it was found that the bottle collapse was related to the high suction volume of deodorized oil in oil blending tanks. Through the suction volume of oil products test, the suction volume of the four inlet links of deodorized oil, storage tank, oil blending tank and filling first pieces were quantitatively analyzed. It was found that the suction volume of “top in and bottom out” oil inlet mode was much lower than that of “bottom in and bottom out”.So adjusting the “bottom in and bottom out” oil inlet mode to “top in and bottom out” and controlling the suction volume of deodorized oil under 35 cm could effectively avoid bottle collapse of small package oil products. |
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