{"id":4284,"date":"2023-04-23T20:40:31","date_gmt":"2023-04-23T12:40:31","guid":{"rendered":"http:\/\/www.dcl-controls.com\/?p=4284"},"modified":"2025-03-31T09:27:20","modified_gmt":"2025-03-31T09:27:20","slug":"why-explosion-proof-actuator","status":"publish","type":"post","link":"https:\/\/dclactuator.com\/lt_lt\/parama\/pavara\/why-explosion-proof-actuator","title":{"rendered":"Kod\u0117l kai kuriems pavaros mechanizmams reikalinga apsauga nuo sprogimo?"},"content":{"rendered":"
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\u00a0<\/p>

1. Kas yra sprogimas?<\/strong><\/h2>

Sprogimas \u012fvyksta, kai degios med\u017eiagos mai\u0161osi su deguonimi<\/strong> ir tam tikromis s\u0105lygomis u\u017esidegti. Jei reakcijos greitis vir\u0161ija garso greit\u012f<\/strong>, tai lemia a griaunamoji sprogimo banga<\/strong>.<\/p>

2. Kas yra apsauga nuo sprogimo?<\/strong><\/h2>

\u012e u\u017ekirsti keli\u0105 sprogimams<\/strong>, turi b\u016bti kontroliuojamas bent vienas i\u0161 trij\u0173 pagrindini\u0173 veiksni\u0173:<\/p>

  1. Degios med\u017eiagos<\/strong><\/p><\/li>

  2. Deguonis<\/strong><\/p><\/li>

  3. U\u017edegimo \u0161altinis<\/strong><\/p><\/li><\/ol>

    Nuo tada degi\u0173 med\u017eiag\u0173 ir deguonies da\u017enai ne\u012fmanoma i\u0161vengti<\/strong> pramonin\u0117je aplinkoje, u\u017edegimo \u0161altinis turi b\u016bti kontroliuojamas<\/strong>.<\/p>

    Elektros \u012franga yra galimas u\u017edegimo \u0161altinis<\/strong> d\u0117l:
    \u2714 Pavir\u0161iaus \u0161ildymas eksploatacijos metu<\/strong>
    \u2714 Elektrostatin\u0117 i\u0161krova<\/strong>
    \u2714 Kibirk\u0161tys nuo elektros srovi\u0173<\/strong><\/p>

    Sprogimui atspari elektros \u012franga yra sukurta siekiant i\u0161vengti per didel\u0117s pavir\u0161iaus temperat\u016bros ir elektros kibirk\u0161\u010di\u0173<\/strong>, u\u017etikrinant, kad jis netampa u\u017edegimo \u0161altiniu<\/strong>.<\/p>

    <\/p>

    3. Pavojing\u0173 aplink\u0173 klasifikacija<\/strong><\/h2>

    Sprogimui atspari elektros \u012franga skirstoma \u012f dvi kategorijas:<\/p>

    • I kategorija<\/strong>\u012eranga, skirta anglies kasyklos<\/strong><\/p><\/li>

    • II kategorija<\/strong>\u012eranga, skirta kitos sprogios duj\u0173 aplinkos<\/strong><\/p><\/li><\/ul>

      II kategorijos \u012franga<\/strong><\/h3>

      1. Sprogimo grup\u0117s (pagal saugos tarp\u0105 ir u\u017edegimo srov\u0119)<\/strong><\/p>

        • IIA<\/strong><\/p><\/li>

        • IIB<\/strong> (galima naudoti IIA s\u0105lygomis)<\/p><\/li>

        • IIC<\/strong> (galima naudoti IIA ir IIB s\u0105lygomis)<\/p><\/li><\/ul><\/li>

        • Temperat\u016bros grup\u0117s (pagal maksimali\u0105 pavir\u0161iaus temperat\u016br\u0105)<\/strong><\/p>

          • T1 (450 \u00b0C)<\/strong><\/p><\/li>

          • T2 (300 \u00b0C)<\/strong><\/p><\/li>

          • T3 (200 \u00b0C)<\/strong><\/p><\/li>

          • T4 (135 \u00b0C)<\/strong><\/p><\/li>

          • T5 (100 \u00b0C)<\/strong><\/p><\/li>

          • T6 (85 \u00b0C)<\/strong><\/p><\/li><\/ul><\/li><\/ol>

            Daugiau nei 90% sprogstam\u0173j\u0173 duj\u0173<\/strong> patekti \u012f IIA, IIB grup\u0117s<\/strong> ir T1\u2013T4 temperat\u016bros klasifikacijos<\/strong>.<\/p>

            <\/p>

            4. Kaip u\u017etikrinama apsauga nuo sprogimo?<\/strong><\/h2>

            Keletas b\u016bd\u0173 u\u017etikrina, kad elektros \u012franga b\u016bt\u0173 saugus sprogioms aplinkoms<\/strong>, kaip apibr\u0117\u017eta GB3836, IEC60079, EN50014<\/strong> standartai.<\/p>

            <\/p>

            Sprogimui atspari (Exd) konstrukcija<\/strong><\/h3>

            DCL sprogimui atspar\u016bs pavaros mechanizmai gaminami pagal:
            \u2714 GB3836.1-2010, GB3836.2-2010<\/strong>
            \u2714 IEC 60079-0, IEC 60079-1, IEC 60079-31<\/strong>
            \u2714 ISO\/IEC 80079-36, ISO\/IEC 80079-37<\/strong><\/p>

            Atsparumo ugniai (Exd) konstrukcijos principai<\/strong><\/h4>

            <\/p>

            \u2714 \u012erenginio viduje gali \u012fvykti sprogimas<\/strong>, ta\u010diau gaubtas neleid\u017eia jam u\u017esidegti i\u0161orinei aplinkai.
            \u2714 Ugniai atsparios jungtys<\/strong> yra suprojektuoti su teisingu tarpas ir ilgis<\/strong> suvaldyti vidinius sprogimus.
            \u2714 Tvirti korpusai<\/strong> atlaikyti didelis vidinis sl\u0117gis<\/strong> nesulau\u017eant.<\/p>

            DCL sprogimui atspar\u016bs komponentai<\/strong><\/h3>

            \u2714 Variklio skyrius<\/strong>
            \u2714 Elektros komponent\u0173 skyrius<\/strong>
            \u2714 Laid\u0173 skyrius<\/strong><\/p>

            5. DCL sprogimui atsparaus pavaros sertifikavimas<\/strong><\/h2>

            Apsaugos nuo sprogimo lygis: Exd IIC T4 Gb<\/strong><\/h3>

            \u2714 Buv\u0119s<\/strong> \u2013 Sprogimui atsparaus \u017eym\u0117jimo
            \u2714 d<\/strong> \u2013 Atsparus ugniai tipas (\u201eExd\u201c)
            \u2714 II.<\/strong> \u2013 Ne kasybos reikm\u0117ms
            \u2714 C<\/strong> \u2013 Sprogimo grup\u0117 (auk\u0161tesni saugos reikalavimai)
            \u2714 T4<\/strong> \u2013 Maksimali pavir\u0161iaus temperat\u016bra 135\u00b0C<\/strong>
            \u2714 GB<\/strong> \u2013 \u012erangos apsaugos lygis<\/p>

            I\u0161vada<\/strong><\/h3>

            Sprogimui atspar\u016bs pavaros mechanizmai yra b\u016btini pavojingos aplinkos<\/strong> u\u017ekirsti keli\u0105 sprogstam\u0173j\u0173 duj\u0173 u\u017esidegimas<\/strong>DCL Exd IIC T4 Gb klas\u0117s pavaros<\/strong> u\u017etikrinti saugum\u0105 \u0161iais b\u016bdais:
            \u2714 Vidini\u0173 sprogim\u0173 buvimas<\/strong>
            \u2714 Kibirk\u0161\u010di\u0173 ir per didelio kar\u0161\u010dio prevencija<\/strong>
            \u2714 Atlaiko auk\u0161t\u0105 sl\u0117g\u012f be ply\u0161imo<\/strong><\/p>

            \u0160ios projektavimo priemon\u0117s leid\u017eia DCL pavaros yra patikimos ir saugios<\/strong> u\u017e pramoniniam naudojimui sprogioje aplinkoje<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

            \u00a0 1. Kas yra sprogimas? Sprogimas \u012fvyksta, kai degios med\u017eiagos susimai\u0161o su deguonimi ir tam tikromis s\u0105lygomis u\u017esidega. Jei reakcijos greitis vir\u0161ija garso greit\u012f, susidaro destruktyvi sprogimo banga. 2. Kas yra apsauga nuo sprogimo? Norint i\u0161vengti sprogim\u0173, reikia kontroliuoti bent vien\u0105 i\u0161 trij\u0173 pagrindini\u0173 veiksni\u0173: [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[91],"tags":[53,66,39],"class_list":["post-4284","post","type-post","status-publish","format-standard","hentry","category-an-actuator","tag-actuator","tag-explosion-proof-actuator","tag-faq"],"acf":[],"_links":{"self":[{"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/posts\/4284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/comments?post=4284"}],"version-history":[{"count":0,"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/posts\/4284\/revisions"}],"wp:attachment":[{"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/media?parent=4284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/categories?post=4284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dclactuator.com\/lt_lt\/wp-json\/wp\/v2\/tags?post=4284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}