Localized "Heart" Needs Domestic Lubricant Protection The compressor group is the "heart" of the long-distance natural gas transmission pipeline project. For a long time, only the large companies in the United States, Britain, and Germany have been able to design, manufacture, and produce. The monopoly of foreign technology has led China to invest in a natural gas pipeline with hundreds of billions of yuan. Only the compressor investment accounts for about half of the equipment investment. In order to change the passive situation, the country classified the compressor group as a major scientific and technological project to carry out technical research, at the same time investing special funds, establishing a research and development test center, led by the West-East Gas Pipeline Company, and 10 domestic electromechanical manufacturing companies such as the Shenyang Blower Group Co., Ltd. The backbone enterprises of the industry are jointly responsible for the development of the localization of equipment for the 20 megawatt-class electric drive compressors, the 30 megawatt-level fuel-discharge compressors and high-pressure large-diameter ball valves. After a difficult task, the 20 MW electric drive compressor group completed the development task on schedule, and the West Second Line Gaoling gas station was listed as a model station station of the domestically-made compressor group, and 4 sets of 20 MW electric drive compressor units were installed for industrial applications. test. “The expert group also recommended that as soon as possible, select representative sites in China's long-distance natural gas pipelines, conduct long-term application inspections of oil products, and promote the localization of natural gas long-distance pipeline compressor lubricants.†Lubricating Oil Company Dalian R&D Center Oil Products Engineer Sun Daxing said that this is a good opportunity to increase brand awareness and promote oil products and services. Independently developed and applied supporting quality domestic lubricants The localization of key equipment is the only way for industry independence and national self-improvement. Localization of key equipment for long-distance pipelines is an important guarantee for national energy security. Lubricant companies are deeply aware of their importance and take the initiative to develop the task of developing electric drive compressor oils. In 2011, it was an important and busy year for lubricant companies. “In March, we exchanged compressor oil technology with Shengu Group; in April, the research and development of applied lubricants passed appraisal, and we signed a three-way cooperation agreement with Shengu Group and Liaoyang Petrochemical to carry out compressor oil testing. In May, the overall lubrication solution was provided for the West-East Gas Transmission Equipment; in July, the Kunlun KTGS32 centrifugal compressor oil was tested through the joint test of the centrifugal compressor; in November, the Kunlun KTGS32 centrifugal compressor oil began to be in the centrifugal compressor group. Commissioning trials.†Sun Daxing said that we then conducted in-depth discussions and exchanges with the West-East Gas Pipeline Company on product performance, production, technology, and supply assurance. Wang Xiaoping, deputy general manager of West-East Gas Pipeline Company, fully affirmed the Kunlun KTGS32 centrifugal compressor oil product and made a bold decision: “All the four domestically produced compressor units in the Gaoling Compressor Station of the West-East Gas Pipeline will use Kunlun Compressor. Once oil has acquired experience, it will be fully promoted on imported units." Kunlun Lubricants Domestic Oil Lubricants Model The successful development and commissioning of the first set of 20 MW electric drive compressors not only broke the foreign technology monopoly and trade barriers for such equipment, but also marked the Kunlun compressor oil in the "natural gas long-distance transmission pipeline compressor lubricants. On the road to localization, a solid and successful first step has been taken. On November 28, 2014, the cumulative operating time of Unit 1 of Gaoling Compressor Station reached 6,439 hours, and the on-site industrial assessment of 4000 hours was successfully completed. Shengu Group specifically issued a statement saying: "The Kunlun KTGS32 centrifugal compressor lubricant product provided by the Lubricant Co., Ltd. During the use of the PCL8O4 centrifugal compressor produced by our group, the equipment operates stably and can fully meet the normal production requirements." Shen Yongqiang, chairman of Shengu Group, made it clear that in the future, the drum compressor test oil will be used to purchase all Kunlun special oil, and cooperate with Dalian R&D center to perform on-site analysis and monitoring; after the special oil passes the Shengu compressor test, Shengu will The special oil is included in the product's recommended oil schedule for user's selection; it is determined to rely on Shengu's existing compressor test platform, and the corresponding test system design proposal is proposed by Dalian R&D Center, establishing China Petroleum Lubricant Company. The joint lab with Shengu Rotary Power Lubrication, to better study the performance of lube oil according to the actual conditions of the Shengu compressor. At this point, after years of unremitting efforts, Lubricating Oil Company has finally become a model for the application of domestic lubricants for long-distance natural gas transmission pipeline compressors, and has laid a solid foundation for the subsequent promotion and application of West-East Gas Pipeline Company. The working principle of an injection molding machine is similar to that of a syringe used for injection. It uses the force of a screw (or plunger) to inject a plasticized molten state (ie, viscous flow state) into a closed mold cavity. After curing and setting, the process of the product is obtained.
Injection molding machine operation items: Injection molding machine operation items include control of the keyboard operation, electrical control system operation and hydraulic system operation in three aspects. The injection process, the feeding action, the injection pressure, the injection speed, the ejection type selection, the temperature monitoring of each barrel section, the injection pressure, and the back pressure adjustment were performed.
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Technical and service personnel of China National Petroleum Lubricating Oil Company carry out fine quality service on the site of Gaoling Compressor Station on the Second West-East Pipeline
Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - mold cooling - mold removal. Remove the plastic parts and then close the mold for the next cycle.
From 72 hours to 6439 hours to 18,800 hours, the accumulated operating time of domestic 20 MW-class electric drive compressor units at the Gaoling Compressor Station of the Second West-East Gas Pipeline continues to set new records to ensure the normal operation of this “Chinese Heartâ€. Kunlun KTGS32 centrifugal compressor oil has also been fully affirmed, and imported lubricants are equivalent, not only to fill the gaps in the domestic market, but also a new level of domestic lubricants.