Research on Installation Acceptance Standards and Operation and Maintenance Management of Nitrogen Generator Equipment
制氮机设备安装验收标准与运行维护管理研究

摘要

制氮机是工业上提供氮气的重要装置，而制氮机的质量以及后期运行维护情况直接影响到设备寿命、供气质量和 安全性。本文首先介绍了制氮机的工作原理及其组成结构，其次详细论述了变压吸附式制氮机的安装验收要求，在安 装之前、过程中以及之后都需要进行检查并做好记录，最后对日常管理和维护提出了建议。此外，基于此制定了包括 制度保障、预防性维修、库存管理以及人员培训在内的制氮机维护体系。在动力电池制造领域，氮气作为关键工艺介 质，广泛应用于电极浆料搅拌、注液、化成、分容等工序的惰性气氛保护，其品质直接关系到电芯的界面稳定性、循 环寿命与安全性能。动力电池制造对氮气的纯度（≥99.999%）、露点（≤-60℃）、含油量（≤0.01ppm）及供气连续性 （24h不间断）均有严格要求，一旦氮气品质不达标或意外断供，将导致大批量电芯报废并引发重大经济损失，因此制 氮机的规范化安装验收与科学运维管理具有特殊重要性。

Abstract

 A nitrogen generator is an important industrial device for supplying nitrogen, and its equipment quality as well as subsequent operation and maintenance directly affect equipment service life, gas supply quality, and operational safety. This paper first introduces the working principle and structural composition of nitrogen generators, then discusses in detail the installation acceptance requirements for pressure swing adsorption nitrogen generators. Inspections should be carried out and properly recorded before, during, and after installation. Finally, recommendations are proposed for daily management and maintenance. On this basis, a nitrogen generator maintenance system is established, covering institutional support, preventive maintenance, spare parts inventory management, and personnel training. In the field of power battery manufacturing, nitrogen serves as a key process medium and is widely used for inert atmosphere protection in processes such as electrode slurry mixing, electrolyte injection, formation, and capacity grading. Its quality is directly related to the interfacial stability, cycle life, and safety performance of battery cells. Power battery manufacturing has strict requirements for nitrogen purity (≥99.999%), dew point (≤ −60 °C), oil content (≤ 0.01 ppm), and gas supply continuity (24-hour uninterrupted supply). Once nitrogen quality fails to meet the required standard or an unexpected supply interruption occurs, large batches of battery cells may be scrapped, resulting in major economic losses. Therefore, standardized installation acceptance and scientific operation and maintenance management of nitrogen generators are of particular importance.