{"id":5447,"date":"2021-02-04T15:56:02","date_gmt":"2021-02-04T20:56:02","guid":{"rendered":"https:\/\/live-technetics.pantheonsite.io\/?p=5447"},"modified":"2024-03-04T08:59:15","modified_gmt":"2024-03-04T13:59:15","slug":"space-cryogenic-fluid-safe-shear-burst-discs","status":"publish","type":"post","link":"https:\/\/technetics.com\/fr\/space-cryogenic-fluid-safe-shear-burst-discs\/","title":{"rendered":"Solutions d'\u00e9tanch\u00e9it\u00e9 a\u00e9rospatiales pour les missions spatiales"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-90j45-75f22e0c63931e5a542cdfe606306e57\">\n.flex_column.av-90j45-75f22e0c63931e5a542cdfe606306e57{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-90j45-75f22e0c63931e5a542cdfe606306e57 av_one_full  avia-builder-el-0  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kk7d6eef-809cfed612440e125c3f58ba3a19f02f\">\n.avia-image-container.av-kk7d6eef-809cfed612440e125c3f58ba3a19f02f img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-kk7d6eef-809cfed612440e125c3f58ba3a19f02f .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-kk7d6eef-809cfed612440e125c3f58ba3a19f02f av-styling- avia-align-center  avia-builder-el-1  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-5266 avia-img-lazy-loading-not-5266 avia_image' src=\"https:\/\/technetics.com\/wp-content\/uploads\/2021\/01\/Moon-Outpost.jpg\" alt='Moon Outpost' title='Moon-Outpost'  height=\"390\" width=\"1080\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/technetics.com\/wp-content\/uploads\/2021\/01\/Moon-Outpost.jpg 1080w, https:\/\/technetics.com\/wp-content\/uploads\/2021\/01\/Moon-Outpost-768x277.jpg 768w, https:\/\/technetics.com\/wp-content\/uploads\/2021\/01\/Moon-Outpost-16x6.jpg 16w, https:\/\/technetics.com\/wp-content\/uploads\/2021\/01\/Moon-Outpost-705x255.jpg 705w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38\">\n#top .hr.av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38 .hr-inner{\nwidth:50px;\n}\n<\/style>\n<div  id=\"center-accent-line\"  class='hr av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38 hr-custom  avia-builder-el-2  el_after_av_image  el_before_av_textblock  hr-center hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-kizlslos-25e4805fab396216a362a74752da1513'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Solutions d'\u00e9tanch\u00e9it\u00e9 a\u00e9rospatiales pour les missions spatiales<\/h2>\n<\/div><\/section><br \/>\n<section  class='av_textblock_section av-kgvndh38-0169d97b576f4feed51c8d05e220d6dc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h6>Par Kingston Vickers<\/h6>\n<p>La gestion des fluides cryog\u00e9niques est le fondement des programmes spatiaux actuels et futurs. La disponibilit\u00e9 de ces fluides propulsifs au lancement, dans les d\u00e9p\u00f4ts orbitaux et sur la surface lunaire est essentielle pour les futures missions d'exploration humaine vers Mars. Les fluides cryog\u00e9niques se trouvent dans des r\u00e9servoirs de carburant sous pression et des sous-syst\u00e8mes de propulsion. Il est essentiel de maintenir la pression op\u00e9rationnelle de ces carburants en toute s\u00e9curit\u00e9 et une surpression pourrait entra\u00eener la perte catastrophique d'un vaisseau spatial. Une autre pr\u00e9occupation concernant la gestion du carburant cryog\u00e9nique est un processus appel\u00e9 \"boil-off\". L'\u00e9vaporation est le terme donn\u00e9 aux pertes de produit des syst\u00e8mes de stockage de propergol cryog\u00e9nique pendant les applications de missions spatiales de longue dur\u00e9e.<\/p>\n<p>Dans les mod\u00e8les de disques de rupture de marchandises, le diaphragme se rompt lorsqu'il est expos\u00e9 \u00e0 des pressions d\u00e9passant sa limite. Cet \u00e9l\u00e9ment \"frangible\" a un impact profond sur la capacit\u00e9 de ces types de disques de rupture. Les charges de choc, les vibrations au lancement, les proc\u00e9dures d'interruption, les cycles d'\u00e9bullition op\u00e9rationnels et la n\u00e9cessit\u00e9 d'un service \u00e0 long terme rendent la d\u00e9pendance \u00e0 l'\u00e9gard d'un diaphragme mince et singulier comme solution de surpression quelque peu d\u00e9concertante au mieux.<\/p>\n<p>Qu'il s'agisse d'applications terrestres, atmosph\u00e9riques ou spatiales, l'impact de la temp\u00e9rature doit \u00eatre pris en compte dans la protection contre les surpressions. Des complications apparaissent lors de la sp\u00e9cification de la temp\u00e9rature de rupture sp\u00e9cifique pour la pression des disques d'\u00e9clatement conventionnels.<\/p>\n<p>La pression de rupture du disque frangible d\u00e9pend uniquement de la r\u00e9sistance physique de la fine membrane. Ces disques de commodit\u00e9 pr\u00e9sentent un risque de variation \u00e9lev\u00e9e de la pression d'\u00e9clatement sp\u00e9cifi\u00e9e ; une temp\u00e9rature inf\u00e9rieure risque d'\u00eatre sup\u00e9rieure \u00e0 la pression d'\u00e9clatement nominale, une temp\u00e9rature sup\u00e9rieure risque d'\u00eatre inf\u00e9rieure \u00e0 la pression d'\u00e9clatement nominale.<\/p>\n<p>En obscurcissant davantage cette sp\u00e9cification critique, les concepteurs doivent faire leur meilleur jugement quant aux conditions qui risquent le plus de provoquer un \u00e9v\u00e9nement de surpression.<\/p>\n<p>Cela peut \u00eatre extr\u00eamement difficile \u00e0 pr\u00e9voir dans les cas o\u00f9 des r\u00e9actions chimiques incontr\u00f4l\u00e9es ou des d\u00e9faillances inattendues de composants se produisent. (par exemple, vannes, pompes, interrupteurs, etc.)<\/p>\n<p>Les disques frangibles limitent la s\u00e9curit\u00e9 du syst\u00e8me et restreignent le choix quant \u00e0 l'endroit o\u00f9 le disque peut \u00eatre physiquement plac\u00e9 dans le syst\u00e8me.  En raison de leur sensibilit\u00e9 thermique, les mod\u00e8les frangibles doivent \u00eatre plac\u00e9s tr\u00e8s pr\u00e8s de l'endroit o\u00f9 se produisent les conditions de perturbation attendues.  Tout d\u00e9calage de l'emplacement peut entra\u00eener un transfert de chaleur et avoir un impact n\u00e9gatif sur la pression d'\u00e9clatement du disque.<\/p>\n<p><strong>Selon certains rapports, une diff\u00e9rence de temp\u00e9rature de 100\u00b0 F entra\u00eene un d\u00e9calage de 20% de la pression de rupture pour les conceptions frangibles classiques.<\/strong><\/p>\n<p>En revanche, les conceptions avanc\u00e9es de disques de rupture SAFE-SHEAR\u2122 sont immunis\u00e9es contre de nombreux param\u00e8tres d'application critiques qui d\u00e9truisent les disques de rupture conventionnels\/frangibles. Ces disques de rupture avanc\u00e9s peuvent r\u00e9sister \u00e0 des millions de cycles de chocs, de vibrations, de cycles thermiques et de bousculades jusqu'\u00e0 95% de pression de rupture. Nos capacit\u00e9s en mati\u00e8re de disques de rupture permettent aux concepteurs de fluides cryog\u00e9niques d'optimiser la conception des cylindres pour les hautes pressions, garantissant ainsi la disponibilit\u00e9 d'un propergol et d'un oxydant ad\u00e9quats pour activer les syst\u00e8mes d\u00e9pendant de la pression. Notre disque de rupture avanc\u00e9 accomplit cela tout en emp\u00eachant la perte de produit. Nos taux de fuite sont inf\u00e9rieurs \u00e0 10-8 centim\u00e8tres cubes standard par seconde de GHe. (sccs)<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4khbm2-de8886ed9d07ed8f3a3cd16228ff595f\">\n.flex_column.av-4khbm2-de8886ed9d07ed8f3a3cd16228ff595f{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-4khbm2-de8886ed9d07ed8f3a3cd16228ff595f av_one_half  avia-builder-el-5  el_after_av_one_full  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-kk7cihs3-17cf50f0d5ad07dceb142d7fa0517001'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Le dispositif de s\u00e9curit\u00e9 renforc\u00e9 et la protection contre les fuites sont rendus possibles gr\u00e2ce \u00e0 son mode de fonctionnement. Lorsque la pression interne du liquide ou du gaz atteint la pression diff\u00e9rentielle pr\u00e9d\u00e9termin\u00e9e (et calibr\u00e9e), un ressort Belleville r\u00e9gl\u00e9 avec pr\u00e9cision s'inverse, for\u00e7ant le diaphragme \u00e0 entrer dans un poin\u00e7on dentel\u00e9, lib\u00e9rant ainsi la pression du syst\u00e8me. Ce m\u00e9canisme de fonctionnement permet aux disques de rupture avanc\u00e9s d'offrir une pr\u00e9cision de rupture remarquable. Notre disque de rupture SAFE-SHEAR\u2122 peut \u00eatre r\u00e9gl\u00e9 \u00e0 \u00b11% de pressions de rupture de 1 \u00e0 10 000 psi (0,007 \u00e0 690 bars) et offre des tol\u00e9rances \u00e0 des temp\u00e9ratures allant de -457 \u00e0 1 000\u00b0F (- 270 \u00e0 540\u00b0C).<\/p>\n<\/div><\/section><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2roxka-1afc32f9cafd61057a81a06be6c1a3f7\">\n.flex_column.av-2roxka-1afc32f9cafd61057a81a06be6c1a3f7{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2roxka-1afc32f9cafd61057a81a06be6c1a3f7 av_one_half  avia-builder-el-7  el_after_av_one_half  el_before_av_textblock  flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kk7chga0-94201967555738a6efb0b4603702d522\">\n.avia-image-container.av-kk7chga0-94201967555738a6efb0b4603702d522 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-kk7chga0-94201967555738a6efb0b4603702d522 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-kk7chga0-94201967555738a6efb0b4603702d522 av-styling- avia_animated_image av-animated-when-visible-95 fade-in avia-align-center  avia-builder-el-8  avia-builder-el-no-sibling'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-2323 avia-img-lazy-loading-not-2323 avia_image' src=\"https:\/\/technetics.com\/wp-content\/uploads\/2020\/12\/Animated_BurstDisc.gif\" alt='Animated Burst Disc' title='Disque_anim\u00e9'  height=\"356\" width=\"612\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><\/div>\n<section  class='av_textblock_section av-kgvndh38-0169d97b576f4feed51c8d05e220d6dc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Une fois que le poin\u00e7on a perc\u00e9 le diaphragme, le disque de rupture lib\u00e8re rapidement toute pression. Pour \u00e9viter les pertes dans les applications n\u00e9cessitant une pression minimale ou lorsque le syst\u00e8me est \u00e9loign\u00e9 et ne peut pas \u00eatre recharg\u00e9, nous pouvons inclure des soupapes de d\u00e9charge int\u00e9gr\u00e9es au disque de rupture. Nos soupapes de d\u00e9charge emp\u00eachent la perte de toute la pression du produit et permettent donc aux composants d\u00e9pendant de la pression de continuer \u00e0 fonctionner. Nos composants de disque de rupture\/valve de d\u00e9charge offrent un gain de poids allant jusqu'\u00e0 80% par rapport \u00e0 d'autres syst\u00e8mes redondants.<\/p>\n<div class='avia-iframe-wrap'><iframe loading=\"lazy\" title=\"Technetics SAFE SHEAR\u00ae Disques de rupture dans les engins spatiaux et les satellites\" width=\"1500\" height=\"844\" src=\"https:\/\/www.youtube.com\/embed\/x5KD4H6A9t0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n<p>La NASA consid\u00e8re que notre type de disque avanc\u00e9 \u00e9quivaut \u00e0 deux soupapes de s\u00fbret\u00e9, ce qui permet \u00e0 une seule d'entre elles de r\u00e9pondre \u00e0 l'exigence de tol\u00e9rance aux deux d\u00e9faillances de la NASA (R\u00e9f. exigence de la NASA en mati\u00e8re de s\u00e9curit\u00e9 des charges utiles NHB 1700.7 ; NASA-JSC NSTS\/ISS 18798 ; JCS Letter TA-88-074). \u2013 <em>\"La conception de disque de rupture pr\u00e9f\u00e9r\u00e9e pour les charges utiles est celle qui utilise une membrane d'inversion contre un bord de coupe pour assurer la rupture. L'utilisation historique et l'exp\u00e9rience indiquent qu'un disque de rupture de ce type peut \u00eatre certifi\u00e9 comme un dispositif de d\u00e9charge de pression tr\u00e8s fiable\".<\/em><\/p>\n<p>Les applications spatiales des disques de rupture n\u00e9cessitent des solutions mat\u00e9rielles con\u00e7ues pour r\u00e9sister aux carburants de fus\u00e9e agressifs, aux oxydants et autres fluides agressifs. Les mat\u00e9riaux de construction peuvent inclure l'aluminium, l'acier inoxydable, les superalliages et le PTFE.<\/p>\n<p>Outre nos applications de vol spatial humain, notamment la station spatiale internationale, d'autres engins spatiaux, satellites et avions utilisent notre technologie SAFE-SHEAR\u2122 :<\/p>\n<ul>\n<li>Mission de ravitaillement orbital du RRM3<img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-2205\" src=\"https:\/\/live-technetics.pantheonsite.io\/wp-content\/uploads\/2020\/12\/Astronaut-Thumbs-Up-with-Satellite-with-K-Port-2.jpg\" alt=\"Astronaut Thumbs Up and Satellite with K-Port Seal\" width=\"375\" height=\"211\" srcset=\"https:\/\/technetics.com\/wp-content\/uploads\/2020\/12\/Astronaut-Thumbs-Up-with-Satellite-with-K-Port-2.jpg 600w, https:\/\/technetics.com\/wp-content\/uploads\/2020\/12\/Astronaut-Thumbs-Up-with-Satellite-with-K-Port-2-16x9.jpg 16w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/li>\n<li>Le vaisseau spatial Cassini<\/li>\n<li>Le t\u00e9lescope spatial Hubble<\/li>\n<li>Le t\u00e9lescope Spitzer<\/li>\n<li>Explorateur de lev\u00e9s infrarouges \u00e0 grand champ<\/li>\n<li>Mars Global Surveyor<\/li>\n<li>Sonde de gravit\u00e9 B<\/li>\n<li>V-22 Balbuzard p\u00eacheur \/ KC-390<\/li>\n<\/ul>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>La gestion des fluides cryog\u00e9niques est le fondement des programmes spatiaux actuels et futurs. La disponibilit\u00e9 de ces fluides propulsifs au lancement, dans les d\u00e9p\u00f4ts orbitaux et sur la surface lunaire est essentielle pour les futures missions d'exploration humaine vers Mars. Les fluides cryog\u00e9niques se trouvent dans des r\u00e9servoirs de carburant sous pression et des sous-syst\u00e8mes de propulsion.<\/p>","protected":false},"author":1,"featured_media":5229,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[67],"tags":[],"application":[57],"class_list":["post-5447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","application-space"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Aerospace Sealing Solutions for Space Missions - Technetics Group<\/title>\n<meta name=\"description\" content=\"Discover aerospace-grade Abradable Seals and rupture discs at Technetics Group. 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