Study on Sealing Performance of Spring Energy Storage Seal used for Ultra High Pressure Throttle Nozzle

Study on Sealing Performance of Spring Energy Storage Seal used for Ultra High Pressure Throttle Nozzle | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Study on Sealing Performance of Spring Energy Storage Seal used for Ultra High Pressure Throttle Nozzle Shaobo Feng, Yongcang Ren, Xuan Zhou, Chunyu Feng This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8049646/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 19 Feb, 2026 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract Through the combination of experiment, simulation and verification, this study successfully developed a spring energy storage seal ring, which can withstand the pressure of 175 MPa and the working temperature of -46 ° C to 180 ° C, showing significant application potential. Firstly, the constitutive model of the sealing material (PTFE and its modification) at -46 ° C, 20 ° C and 180 ° C was determined by compression experiment; The finite element analysis was carried out, and the effects of the angle of the support ring, the interference of the inner and outer lips and the angle behind the lip on the sealing performance were analyzed. The results show that the design angle of PEEK gasket suitable for the seal ring is 40 °, and the seal ring material is 10C-PTFE; In order to ensure that the contact stress is greater than 175MPa and the equivalent force is less than the yield strength, the margin of the inner and outer lip of the seal ring is 0.25mm and 0.2mm respectively, and the rear angle of the inner and outer lip is 9 ° and 11 ° respectively. Based on these findings, a spring energy storage seal ring for throttle valve was manufactured. In the 175MPa hydraulic tooling test, the maximum pressure drop is 1.75MPa. In the gas seal test of natural gas wellhead throttling nozzle, the pressure change is 0.4MPa at 20 ℃, 0.7MPa at 180 ℃, and 1.1MPa at -46 ℃. Physical sciences/Energy science and technology Physical sciences/Engineering Physical sciences/Materials science Seal ring Ultra-high pressure Sealing performance Seal sealing test Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 19 Feb, 2026 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 25 Dec, 2025 Reviews received at journal 22 Dec, 2025 Reviewers agreed at journal 15 Dec, 2025 Reviews received at journal 10 Dec, 2025 Reviewers agreed at journal 16 Nov, 2025 Reviewers invited by journal 13 Nov, 2025 Editor assigned by journal 13 Nov, 2025 Editor invited by journal 12 Nov, 2025 Submission checks completed at journal 10 Nov, 2025 First submitted to journal 10 Nov, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8049646","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":549435695,"identity":"4826c451-21c9-444d-a376-8a0f290b7729","order_by":0,"name":"Shaobo Feng","email":"","orcid":"","institution":"CNPC R \u0026 D Center for Ultra-Deep Complex Reservior Exploration and Development","correspondingAuthor":false,"prefix":"","firstName":"Shaobo","middleName":"","lastName":"Feng","suffix":""},{"id":549435696,"identity":"928aecbb-720a-4df3-9b7d-bf54a58b2222","order_by":1,"name":"Yongcang Ren","email":"","orcid":"","institution":"CNPC R \u0026 D 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In the 175MPa hydraulic tooling test, the maximum pressure drop is 1.75MPa. 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