{"id":11095,"date":"2025-08-29T03:20:43","date_gmt":"2025-08-29T03:20:43","guid":{"rendered":"https:\/\/daivings.lv\/?p=11095"},"modified":"2025-09-22T09:02:21","modified_gmt":"2025-09-22T09:02:21","slug":"nirsana-ar-rebrideru-slegta-cikla-rebrizers-ccr-un-nireju-izpratne-par-skabekla-spiedienu","status":"publish","type":"post","link":"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/","title":{"rendered":"Nardymas su u\u017edaro ciklo rekv\u0117periu (CCR) ir nar\u0173 supratimas apie deguonies sl\u0117g\u012f"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Turinys<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Perjungti turin\u012f\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Perjungti<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/#Raksts_tapis_kopa_ar_Valteru_Preimani_MSDT_Master_Scuba_Diver_Trainer\" >Straipsnis para\u0161ytas kartu su Valteriu Preimaniu, MSDT (pagrindiniu nardytoj\u0173 instruktoriumi).<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/#PO2_09_Decompression_Setpoint\" >PO2 = 0,9 (dekompresijos numatytoji vert\u0117)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/#PO2_14_Bottom_Setpoint\" >PO2 = 1,4 (apatin\u0117 nustatyta vert\u0117)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/#Slapekla_izvadisana\" >Azoto \u0161alinimas<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading has-medium-font-size\"><span class=\"ez-toc-section\" id=\"Raksts_tapis_kopa_ar_Valteru_Preimani_MSDT_Master_Scuba_Diver_Trainer\"><\/span>Straipsnis para\u0161ytas kartu su Valteriu Preimaniu, MSDT (pagrindiniu nardytoj\u0173 instruktoriumi).<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160iandien noriu pakalb\u0117ti apie tem\u0105, kuri da\u017enai kelia klausim\u0173 tiek mano mokiniams, tiek patyrusiems narams: nitroksas rebrizeryje. <em>u\u017edaros kilpos rekv\u0117peris<\/em>\u00a0(CCR) \u2013 kaip tai atrodo, palyginti su atvirojo ciklo nardymu. Tai labai svarbus \u017eingsnis siekiant suprasti, kaip galime nerti giliau ir ilgiau, naudodami \u0161iuolaikines technologijas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Did\u017eiausias skirtumas yra tai, kaip valdomas peraug\u0117jas. <strong>dalinis deguonies sl\u0117gis (PO2)<\/strong>Nardymas atviru ciklu (<strong><a href=\"https:\/\/daivings.lv\/padi-owd-apmaciba-latvija\/\">Paddy OWD kurse<\/a><\/strong>) su nitroksu rei\u0161kia, kad kv\u0117puojate dujomis su fiksuotu deguonies procentu (pvz., 32%). J\u016bs\u0173 PO2 did\u0117ja gil\u0117jant. Pavyzd\u017eiui, su 32% nitroksu 20 metr\u0173 gylyje j\u016bs\u0173 PO2 yra 0,96 ATA.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><img decoding=\"async\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/JJ-SLOKA-QUARRY-1024x678.jpg?v=1758531487\" alt=\"\"><\/td><td><img decoding=\"async\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/JJ-CCR-1024x576.jpg\" alt=\"\"><\/td><\/tr><tr><td>JJ CCR rebrizeri\u0173 mokymai Slokos karjere<\/td><td>JJ CCR rebrizerio treniruot\u0117s su BA cilindru<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ta\u010diau rekv\u0117peris veikia kitaip. Tai tarsi j\u016bs\u0173 asmeninis duj\u0173 mai\u0161ytuvas po vandeniu. J\u016bs nustatote norim\u0105 PO2 (pvz., 1,4 ATA), o rekv\u0117perio kompiuteris automati\u0161kai reguliuoja deguonies procent\u0105, kad \u0161i vert\u0117 b\u016bt\u0173 pastovi, nepriklausomai nuo gylio. Tai... <strong>nuolatinis PO2 nardymas<\/strong>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Koks nitrokso procentas \u012fkvepiamas \u012fvairiuose gyliuose, jei PO2 kiekis palaikomas pastovus? <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pa\u017evelkime \u012f kelet\u0105 pavyzd\u017ei\u0173, naudodami m\u016bs\u0173 formules:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FO2 = P, amb PO2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kur P amb (absoliutus sl\u0117gis) yra 1 + 10 gylio<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PO2_09_Decompression_Setpoint\"><\/span>PO2 = 0,9 (dekompresijos numatytoji vert\u0117)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is nustatymas da\u017eniausiai naudojamas dekompresini\u0173 sustojim\u0173 metu, siekiant efektyviai atsikratyti azoto.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>4 metrai (1,4 ATA):<\/strong> Pakartotinio kv\u0117pavimo aparatas \u012f mi\u0161in\u012f \u012fpila deguonies, kad jis tapt\u0173 <strong>64.3% nitroksas<\/strong>.<\/li>\n\n\n\n<li><strong>6 metrai (1,6 ATA):<\/strong> Deguonies kiekis suma\u017e\u0117ja iki <strong>56.3% nitroksas<\/strong>.<\/li>\n\n\n\n<li><strong>20 metr\u0173 (3.0 ATA):<\/strong> Dabar j\u016bs kv\u0117puojate. <strong>30% nitroksas<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PO2_14_Bottom_Setpoint\"><\/span>PO2 = 1,4 (apatin\u0117 nustatyta vert\u0117)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Tai yra did\u017eiausias leistinas PO2 gylyje, u\u017etikrinantis maksimal\u0173 efektyvum\u0105 be rizikos.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>4 metrai (1,4 ATA):<\/strong> J\u016bs kv\u0117puojate. <strong>100% deguonis<\/strong>.<\/li>\n\n\n\n<li><strong>6 metrai (1,6 ATA):<\/strong> Pakartotinio kv\u0117pavimo aparatas suma\u017eina deguonies kiek\u012f <strong>87.5% nitroksas<\/strong>.<\/li>\n\n\n\n<li><strong>20 metr\u0173 (3.0 ATA):<\/strong> J\u016bs kv\u0117puojate. <strong>46.7% nitroksas<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Kaip matote, duj\u0173 procentin\u0117 dalis nardant su pakartotinio kv\u0117pavimo aparatu n\u0117ra fiksuota. Ji kinta, kad b\u016bt\u0173 palaikomas nustatytas PO2. Tai did\u017eiausias privalumas ir skirtumas. Nors atviros grandin\u0117s naras yra priverstas nerti su konkre\u010diu mi\u0161iniu, pakartotinio kv\u0117pavimo aparatas visada kv\u0117puoja optimaliausiomis dujomis, o tai maksimaliai padidina laik\u0105 po vandeniu ir suma\u017eina dekompresijos poreik\u012f.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Kok\u012f poveik\u012f 50% nitroksas daro \u017emogui 6 metr\u0173 gylyje, kaip jis veikia fiziologi\u0161kai?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nardymas \u012f 6 metr\u0173 gyl\u012f su 50% nitroksu (EAN50)<\/strong> yra labai saugus, bet i\u0161 esm\u0117s naudojamas <strong>dekompresijos sustojimai<\/strong>Fiziologi\u0161kai pagrindinis poveikis yra <strong>dalinis deguonies sl\u0117gis (PO2)<\/strong> poveikis ir \u017eymiai suma\u017eintas <strong>azotas (N2)<\/strong> kiekis.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"193\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219.png?v=1756437223\" alt=\"\" class=\"wp-image-11096\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219.png?v=1756437223 994w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-300x58.png?v=1756437223 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-768x149.png?v=1756437223 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-18x3.png?v=1756437223 18w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-230x45.png?v=1756437223 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-350x68.png?v=1756437223 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2025\/08\/Screenshot-2025-08-29-061219-480x93.png?v=1756437223 480w\" sizes=\"auto, (max-width: 994px) 100vw, 994px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is PO2 lygis (0,8 ATA) yra visi\u0161kai saugus ir netgi ma\u017eesnis u\u017e maksimal\u0173 leistin\u0105 pramoginiam nardymui (1,4 ATA). Jis nesukelia deguonies toksi\u0161kumo. Tod\u0117l 50% nitrokso mi\u0161inys da\u017enai naudojamas kaip dekompresin\u0117s dujos, nes pagreitina azoto pa\u0161alinim\u0105 i\u0161 organizmo, palaikydamas PO2 lyg\u012f saugiose ribose.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Slapekla_izvadisana\"><\/span>Azoto \u0161alinimas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pagrindinis fiziologinis privalumas yra \u017eymiai suma\u017e\u0117jusi azoto absorbcija. Ore yra 79% azoto, o 50% nitrokso mi\u0161inyje yra tik 50% azotas. D\u0117l to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Suma\u017eintas azoto stresas:<\/strong> K\u016bnas pasisavina daug ma\u017eiau azoto, tod\u0117l \u017eymiai suma\u017e\u0117ja dekompresin\u0117s ligos rizika.<\/li>\n\n\n\n<li><strong>Greitesnis azoto pa\u0161alinimas:<\/strong> Kai \u0161is mi\u0161inys naudojamas dekompresinei sustojimui, didelis deguonies kiekis skatina azoto i\u0161siskyrim\u0105 i\u0161 audini\u0173, tod\u0117l dekompresijos laikas sutrump\u0117ja.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Prakti\u0161kai 6 metr\u0173 gylyje su 50% nitroksu azoto pasisavinimas nusileidimo metu yra labai minimalus, ta\u010diau kai jos naudojamos kaip dekompresin\u0117s dujos po gilesnio nardymo, jos labai efektyviai pa\u0161alina susikaupus\u012f azot\u0105.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Kvie\u010diame i\u0161mokti nardyti rebrizeriniu b\u016bdu, kad atrastum\u0117te \u0161iuos privalumus ir pakeltum\u0117te savo nardymo \u012fg\u016bd\u017eius \u012f nauj\u0105 lyg\u012f. Saugaus nardymo!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Valteris Preimanis<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PADI MSDT treniruoklis Daivings.lv<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0160is straipsnis buvo para\u0161ytas kartu su Valteriu Preimaniu, MSDT (pagrindiniu nardymo instruktoriumi). \u0160iandien noriu pakalb\u0117ti apie tem\u0105, kuri da\u017enai kelia klausim\u0173 tiek mano mokiniams, tiek patyrusiems narams: nitroksas u\u017edaro ciklo rebrizeryje (CCR) \u2013 kaip jis skiriasi nuo atviro ciklo nardymo. Jis [\u2026]<\/p>","protected":false},"author":1,"featured_media":10475,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1600],"tags":[],"class_list":["post-11095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tehniska-nirsana"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nir\u0161ana ar rebr\u012bderu (sl\u0113gta cikla rebr\u012bzers\u00a0(CCR)) un nir\u0113ju izpratne par sk\u0101bek\u013ca spiedienu - Daivings.lv<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/daivings.lv\/lt\/nardymas-su-uzdaro-ciklo-rekveperiu-ccr-ir-naru-supratimas-apie-deguonies-slegi\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nir\u0161ana ar rebr\u012bderu (sl\u0113gta cikla rebr\u012bzers\u00a0(CCR)) un nir\u0113ju izpratne par sk\u0101bek\u013ca spiedienu - Daivings.lv\" \/>\n<meta property=\"og:description\" content=\"Raksts tapis kop\u0101 ar Valteru Preimani, MSDT (Master Scuba Diver Trainer). \u0160odien es v\u0113los piev\u0113rsties t\u0113mai, kas bie\u017ei rada jaut\u0101jumus gan maniem studentiem, gan pieredz\u0113ju\u0161iem nir\u0113jiem: nitrokss rebreather\u012b\/ sl\u0113gta cikla rebr\u012bzers\u00a0(CCR) &#8211; k\u0101 tas izskat\u0101s pret atkl\u0101t\u0101 cikla akvalangu. 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