管道天然气离心压缩机干气密封国产化研制

doi:10.3969/j.issn.1006-8805.2020.02.010

石油化工设备技术 ›› 2020, Vol. 41 ›› Issue (2): 39-46.doi: 10.3969/j.issn.1006-8805.2020.02.010

管道天然气离心压缩机干气密封国产化研制

沈登海¹，刘小明²，王泽平³，张聪³，曹磊³

1. 中国石油西部管道公司，新疆乌鲁木齐 830011；
2. 四川大学化学工程学院,四川成都 610045;
3. 四川日机密封件股份有限公司，四川成都 610045

收稿日期:2019-10-12 接受日期:2020-02-25 出版日期:2020-04-03 发布日期:2020-04-03
作者简介:沈登海，男， 2005年毕业于中国石油大学（北京）机械设计及理论专业，硕士，主要从事压缩机组运、检、维方面的研究工作，高级工程师。Email:sdh@petrochina.com.cn

Domestic Development of Dry Gas Seal for Pipeline Natural Gas Centrifugal Compressor

Shen Denghai¹, Liu Xiaoming², Wang Zeping³, Zhang Cong³, Cao Lei³

1. PetroChina West Pipeline Company, Urumqi, Xinjiang, 830011;
2. College of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610045;
3. Sichuan Sunny Seal Co., Ltd., Chengdu, Sichuan, 610045

Received:2019-10-12 Accepted:2020-02-25 Online:2020-04-03 Published:2020-04-03

摘要/Abstract

摘要： 国内管道天然气压缩机绝大部分采用进口机组，其核心部件干气密封具有轴径大、压力高、运行条件苛刻等特点，且全部采用进口产品。干气密封价格高、维修时间长、售后服务不及时，已成为长输管道运行的潜在隐患。文章介绍了西部管道GE机组PCL800机型的干气密封国产化研制的过程。首先，通过机组的运行条件确定了干气密封的设计条件，然后根据设计条件和机组的密封腔尺寸确定了干气密封型式、结构设计、密封材料配置、槽形的选择等。采用专业的干气密封计算软件，计算和分析了密封在设计条件下的端面性能参数和泄漏量。最后，对研制的国产化干气密封样机按照API 617标准和试验大纲要求进行工厂测试，测试结果表明：本次研制的管道天然气压缩机干气密封满足设计技术要求。通过本次国产化研制工作，可以为其他管道天然气压缩机干气密封国产化提供参考。

关键词: 干气密封, 国产化研制, 管道天然气压缩机, 泄漏量

Abstract: Most domestic pipeline natural gas compressors adopt imported units and their core components dry gas seals have the features of large shaft diameter, high pressure and harsh operating conditions. All of the units adopt imported products. Thus the high price, long maintenance time and untimely after-sale service have become potential risks of long-distance pipeline operation. This paper introduces the process of domestication development of dry gas seal for PCL800 model of GE units in West Pipeline Company. Firstly, the design conditions of dry gas seal were determined through the operating conditions of the units. Then, according to the design conditions and the sealing chamber size of the units, the type of dry gas seal, the structure design, the configuration of sealing materials and the selection of groove shape were determined. Through professional dry gas seal software, the performance parameters and leakage of the seal under design conditions were calculated and analyzed. Finally, the factory test of the developed domestic dry gas seal prototype was conducted. And the test results indicated that the dry gas seal of the pipeline natural gas centrifugal compressor met the design technical requirements. This domestication development work can provide reference for the domestication of dry gas seals for other pipeline compressors.

Key words: dry gas seal, domestic development, pipeline natural gas compressor, leakage rate

沈登海，刘小明，王泽平，张聪，曹磊. 管道天然气离心压缩机干气密封国产化研制[J]. 石油化工设备技术, 2020, 41(2): 39-46.

Shen Denghai, Liu Xiaoming, Wang Zeping, Zhang Cong, Cao Lei. Domestic Development of Dry Gas Seal for Pipeline Natural Gas Centrifugal Compressor[J]. Petro-chemical Equipment Technology, 2020, 41(2): 39-46.

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管道天然气离心压缩机干气密封国产化研制

Domestic Development of Dry Gas Seal for Pipeline Natural Gas Centrifugal Compressor

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