{"id":17837,"date":"2026-06-18T14:25:06","date_gmt":"2026-06-18T12:25:06","guid":{"rendered":"https:\/\/lume.ch\/referenz\/nitrogen-containers-n2-containers-for-rotors\/"},"modified":"2026-07-08T09:04:07","modified_gmt":"2026-07-08T07:04:07","slug":"nitrogen-containers-n2-containers-for-rotors","status":"publish","type":"referenz","link":"https:\/\/lume.ch\/en\/reference\/nitrogen-containers-n2-containers-for-rotors\/","title":{"rendered":"Nitrogen Containers\/N2 Containers for Rotors"},"content":{"rendered":"\n<div  class=\"block block-lead main-container pb-mittel\">\n    <div class=\"content-container lead-font-size\">\n        The customer needs a solution from L+M Industriestahlbau for the long-term storage of steam turbine rotors. It is essential to ensure that high-pressure, medium-pressure, and low-pressure rotors are fully and reliably protected against corrosion for several years. \r\n    <\/div>\n<\/div>\n<div  class=\"block block-content bg-weiss pb-mittel\">\n    <div class=\"main-container\">\n        <div class=\"content-container\">\n\n            \n\n\n    <p>A second requirement is to ensure that the rotors are mounted with minimal stress and perfectly straight using an adjustable center support. This ensures that concentricity is fully maintained even after several years of storage. <\/p>\n<p><strong>The challenge<\/strong><\/p>\n<p>Due to the large dimensions and heavy weight of the rotors, finding a solution posed a significant technical challenge. In particular, the design of the bearing and support systems required precise coordination with regard to load distribution, deformation behavior, and long-term stability. <\/p>\n<p>In addition, both commercial and technical coordination took place in an international setting. Specialists from China, South Korea, Poland, the United States, and Baden (Switzerland) were involved in the process. This interdisciplinary and cross-location collaboration required a significant amount of coordination.  <\/p>\n<p><strong>The solution &#8211; unique and clever<\/strong><\/p>\n<p>Following extensive discussions, technical designs, and consultations with GE\u2019s specialist departments, <a href=\"https:\/\/lume.ch\/en\/industrial-steel-construction\/\" target=\"_blank\" rel=\"noopener\">L+M Industriestahlbau<\/a> has developed a suitable comprehensive solution: specially designed nitrogen containers with adjustable supports, also known as N2 containers<\/p>\n<p><strong>Typical Applications for Nitrogen Containers \/ N2 Containers<\/strong><\/p>\n<ul>\n<li>Low-pressure steam turbine<\/li>\n<li>High-Pressure Steam Turbine<\/li>\n<li>Generator Rotor<\/li>\n<\/ul>\n<p>The rotors are stored in shipping containers under a nitrogen atmosphere at a slight overpressure, which ensures effective, long-term corrosion protection.<\/p>\n<p>To compensate for minor leaks and pressure fluctuations caused by temperature changes (gas expansion and compression), the containers are equipped with high-pressure nitrogen cylinders as a buffer system. These ensure that nitrogen is automatically replenished as soon as the pressure falls below a defined minimum level. <\/p>\n<p>From the initial proposal through technical clarification to the order and final implementation, the project spanned a period of more than two years. We are proud of the result, and the customer is completely satisfied. <\/p>\n<p><strong>Specification<\/strong><\/p>\n<ul>\n<li>LLPA: Rotor 51 t \/ Container 16 t \/ Diameter, 3.3 m \/ Length, 7.3 m<\/li>\n<li>LPB: Rotor 51 t \/ Container 16 t \/ Diameter, 3.3 m \/ Length, 7.4 m<\/li>\n<li>HP: Rotor 29 t \/ Container 9 t \/ Diameter, 2.2 m \/ Length, 5.4 m<\/li>\n<li>IP: Rotor 14.5 t \/ Container 7 t \/ Diameter, 1.6 m \/ Length, 3.9 m<\/li>\n<li>Maximum overpressure: 3.4 bar <\/li>\n<li>Material S355<\/li>\n<li>Surface C4, 3-coat 2K exterior paint finish<\/li>\n<\/ul>\n\n    \n    \n\n        <\/div>\n    <\/div>\n<\/div>\n<div  class=\"block block-bild-slider bg-weiss pb-mittel\">\n    <div class=\"main-container pos-rel\">\n\n        <div class=\"swiper-gallery pos-rel\">\n        <div class=\"swiper-wrapper\">\n                        <div class=\"swiper-slide standard-link\">\n                <a 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