Usine d'oxyg\u00e8ne VPSA<\/u><\/strong><\/a> doivent pr\u00e9senter les caract\u00e9ristiques suivantes :<\/p>\n1. Vitesse de commutation \u00e9lev\u00e9e<\/p>\n
2. Bonne performance d'\u00e9tanch\u00e9it\u00e9<\/p>\n
3. Longue dur\u00e9e de vie dans des conditions de commutation fr\u00e9quentes et rapides<\/p>\n
4. Fonctionnement sans huile<\/p>\n
Actuellement, les usines VPSA nationales adoptent g\u00e9n\u00e9ralement des vannes papillon pneumatiques sp\u00e9ciales \u00e0 double excentrique dont les actionneurs et les composants pneumatiques sont fabriqu\u00e9s par des marques renomm\u00e9es telles que Metso et SMC pour am\u00e9liorer la fiabilit\u00e9 des vannes. La vanne pr\u00e9sente les caract\u00e9ristiques suivantes :<\/p>\n
1. Large gamme de calibres : diam\u00e8tre de DN100 \u00e0 DN900<\/p>\n
2. Vitesse de commutation \u00e9lev\u00e9e : 0,3 \u00e0 0,8 seconde\/fois<\/p>\n
3. Structure d'\u00e9tanch\u00e9it\u00e9 : structure d'\u00e9tanch\u00e9it\u00e9 \u00e0 l\u00e8vres avec fuite nulle bidirectionnelle et auto-r\u00e9paration apr\u00e8s usure<\/p>\n
4. Mat\u00e9riaux d'\u00e9tanch\u00e9it\u00e9 : mat\u00e9riau PTFE renforc\u00e9 avec une haute r\u00e9sistance \u00e0 l'usure<\/p>\n
5. Entra\u00eenement de puissance : entra\u00een\u00e9 par un gaz d'instrument basse pression, propre et sans huile, relativement facile \u00e0 obtenir.<\/p>\n
6. Entretien : la vanne est de petite taille, l\u00e9g\u00e8re, facile \u00e0 entretenir. Le co\u00fbt d'entretien est inf\u00e9rieur \u00e0 celui des autres types de vannes.<\/p>","protected":false},"excerpt":{"rendered":"
Le cycle de fonctionnement du processus de production d'oxyg\u00e8ne VPSA est tr\u00e8s court, g\u00e9n\u00e9ralement moins d'une minute. En un cycle, chaque cuve d'adsorption doit passer par les \u00e9tapes d'adsorption, de r\u00e9duction de pression, de d\u00e9sorption, de purge, d'augmentation de pression, etc. Les vannes cl\u00e9s s'ouvrent et se ferment une fois \u00e0 chaque cycle, ce qui est assez fr\u00e9quent, donc elles sont\u2026<\/p>","protected":false},"author":1,"featured_media":1895,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":{"en-title":"","en-meta":"","en-content":"","es-title":"","es-meta":"","es-content":"","ru-title":"","ru-meta":"","ru-content":"","pt-title":"","pt-meta":"","pt-content":"","de-title":"","de-meta":"","de-content":"","th-title":"","th-meta":"","th-content":"","ja-title":"","ja-meta":"","ja-content":"","ko-title":"","ko-meta":"","ko-content":"","fr-title":"","fr-meta":"","fr-content":"","ar-title":"","ar-meta":"","ar-content":"","id-title":"","id-meta":"","id-content":""},"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}]},"featured_image_src_large":["https:\/\/vpsatech.com\/wp-content\/uploads\/2026\/04\/5e0aa088efdf1.jpg",580,466,false],"author_info":{"display_name":"yiyunyingalex","author_link":"https:\/\/vpsatech.com\/fr\/author\/yiyunyingalex"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":194,"filter":"raw","cat_ID":1,"category_count":194,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/posts\/3169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/comments?post=3169"}],"version-history":[{"count":2,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/posts\/3169\/revisions"}],"predecessor-version":[{"id":3527,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/posts\/3169\/revisions\/3527"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/media\/1895"}],"wp:attachment":[{"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/media?parent=3169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/categories?post=3169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vpsatech.com\/fr\/wp-json\/wp\/v2\/tags?post=3169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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