{"id":6266,"date":"2024-09-18T07:26:46","date_gmt":"2024-09-18T07:26:46","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=6266"},"modified":"2024-09-24T02:29:35","modified_gmt":"2024-09-24T02:29:35","slug":"ultra-low-temperature-gantry-cranes-for-krasnodar-port","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/cs\/posts\/ultra-low-temperature-gantry-cranes-for-krasnodar-port\/","title":{"rendered":"Port\u00e1lov\u00e9 je\u0159\u00e1by s extr\u00e9mn\u011b n\u00edzkou teplotou p\u0159izp\u016fsoben\u00e9 pro drsn\u00e9 zimy v p\u0159\u00edstavu Krasnodar: Pokro\u010dil\u00e1 konstruk\u010dn\u00ed \u0159e\u0161en\u00ed"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#ultra-low-temperature-gantry-cranes-problems\">Probl\u00e9my s port\u00e1lov\u00fdmi je\u0159\u00e1by p\u0159i velmi n\u00edzk\u00fdch teplot\u00e1ch<\/a><\/li><li><a href=\"#design-characteristics-of-ultra-low-temperature-gantry-cranes\">Konstruk\u010dn\u00ed charakteristiky port\u00e1lov\u00fdch je\u0159\u00e1b\u016f pro ultran\u00edzk\u00e9 teploty<\/a><ul><li><a href=\"#1-anti-brittleness-study-of-steel-structure-in-the-low-temperature-environment\">1. Antik\u0159ehk\u00e1 studie ocelov\u00e9 konstrukce v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/a><\/li><li><a href=\"#2-protection-of-transmission-mechanism-in-the-low-temperature-environment\">2. Ochrana p\u0159evodov\u00e9ho mechanismu v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/a><\/li><li><a href=\"#3-preheating-and-insulation-of-electrical-components-in-a-low-temperature-environment\">3. P\u0159edeh\u0159ev a izolace elektrick\u00fdch sou\u010d\u00e1stek v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/a><\/li><li><a href=\"#4-internal-stress-release-of-gantry-crane-structure-caused-by-a-wide-range-of-temperature-change\">4. Uvoln\u011bn\u00ed vnit\u0159n\u00edho nap\u011bt\u00ed konstrukce port\u00e1lov\u00e9ho je\u0159\u00e1bu zp\u016fsoben\u00e9 \u0161irok\u00fdm rozsahem teplotn\u00edch zm\u011bn<\/a><\/li><li><a href=\"#5-safety-design\">5. Bezpe\u010dnostn\u00ed design<\/a><\/li><\/ul><\/li><li><a href=\"#summarize\">Shrnout<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>N\u00e1\u0161 klient zakoupil port\u00e1lov\u00e9 je\u0159\u00e1by s velmi n\u00edzkou teplotou pro p\u0159\u00edstav Krasnodar v ji\u017en\u00edm Rusku, kter\u00fd d\u00edky sv\u00e9 vysok\u00e9 zem\u011bpisn\u00e9 \u0161\u00ed\u0159ce na Sibi\u0159i za\u017e\u00edv\u00e1 krut\u00e9 zimy. Aby bylo zaji\u0161t\u011bno, \u017ee je\u0159\u00e1b pracuje p\u0159i teplot\u00e1ch ni\u017e\u0161\u00edch ne\u017e 40 \u00b0C, byly p\u0159i navrhov\u00e1n\u00ed a v\u00fdb\u011bru ocelov\u00fdch konstrukc\u00ed, mechanick\u00fdch sou\u010d\u00e1st\u00ed a elektrick\u00fdch syst\u00e9m\u016f v\u011bnov\u00e1ny zvl\u00e1\u0161tn\u00ed pozornost. Byl vytvo\u0159en specializovan\u00fd t\u00fdm zku\u0161en\u00fdch design\u00e9r\u016f a in\u017een\u00fdr\u016f, kte\u0159\u00ed \u00fazce spolupracovali s rusk\u00fdmi prot\u011bj\u0161ky na n\u00e1vrhu proces\u016f a v\u00fdb\u011bru za\u0159\u00edzen\u00ed, aby bylo mo\u017en\u00e9 splnit specifick\u00e9 environment\u00e1ln\u00ed v\u00fdzvy.<\/p>\n\n\n\n<p>Chladn\u00e9 prost\u0159ed\u00ed v oblastech s vysokou zem\u011bpisnou \u0161\u00ed\u0159kou m\u00e1 obrovsk\u00fd vliv na v\u00fdkon <a href=\"https:\/\/www.kscranegroup.com\/cs\/gantry-crane\/\">port\u00e1lov\u00e9 je\u0159\u00e1by<\/a>a m\u011bla by b\u00fdt p\u0159ijata nezbytn\u00e1 opat\u0159en\u00ed pro \u0159e\u0161en\u00ed n\u00edzkoteplotn\u00edho prost\u0159ed\u00ed, v\u010detn\u011b vlivu extr\u00e9mn\u011b chladn\u00e9ho po\u010das\u00ed na provozn\u00ed efekt a spolehlivost port\u00e1lov\u00fdch je\u0159\u00e1b\u016f. Podle tradi\u010dn\u00edho typu konstrukce nem\u016f\u017ee n\u00e1vrh a v\u00fdroba port\u00e1lov\u00fdch je\u0159\u00e1b\u016f spl\u0148ovat speci\u00e1ln\u00ed po\u017eadavky na pou\u017eit\u00ed oblast\u00ed s vysokou zem\u011bpisnou \u0161\u00ed\u0159kou, pot\u0159ebu hledat novou speci\u00e1ln\u00ed konstruk\u010dn\u00ed strukturu, novou teorii designu a procesn\u00ed metody.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1664\" height=\"936\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/Gantry-Cranes-for-Krasnodar-Port-Russia1.jpg\" alt=\"\" class=\"wp-image-6296\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/Gantry-Cranes-for-Krasnodar-Port-Russia1.jpg 1664w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/Gantry-Cranes-for-Krasnodar-Port-Russia1-1536x864.jpg 1536w\" sizes=\"(max-width: 1664px) 100vw, 1664px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ultra-low-temperature-gantry-cranes-problems\">Probl\u00e9my s port\u00e1lov\u00fdmi je\u0159\u00e1by p\u0159i velmi n\u00edzk\u00fdch teplot\u00e1ch<\/h2>\n\n\n\n<p>Kdy\u017e je okoln\u00ed teplota ni\u017e\u0161\u00ed ne\u017e -20 \u00b0C, pevnost obvykle pou\u017e\u00edvan\u00e9 oceli se v\u00fdrazn\u011b sn\u00ed\u017e\u00ed, zat\u00edmco k\u0159ehkost se zv\u00fd\u0161\u00ed. To v\u00e1\u017en\u011b oslabuje norm\u00e1ln\u00ed mechanick\u00e9 vlastnosti oceli a smr\u0161\u0165ov\u00e1n\u00ed a deformace ocelov\u00e9 konstrukce m\u016f\u017ee zp\u016fsobit struktur\u00e1ln\u00ed selh\u00e1n\u00ed.<\/p>\n\n\n\n<p>V prost\u0159ed\u00ed s n\u00edzkou teplotou tak\u00e9 dr\u00e1ty a kabely ztuhnou nebo se dokonce zlom\u00ed. Mazac\u00ed olej houstne a brzdov\u00e1 kola, ocelov\u00e1 lana, kola a kolejnice jsou vystaveny erozi ledu a sn\u011bhu. Krom\u011b toho jsou elektrick\u00e9 sou\u010d\u00e1sti a r\u016fzn\u00e1 ochrann\u00e1 za\u0159\u00edzen\u00ed n\u00e1chyln\u00e1 k abnorm\u00e1ln\u00ed \u010dinnosti nebo \u00fapln\u00e9mu selh\u00e1n\u00ed, co\u017e br\u00e1n\u00ed norm\u00e1ln\u00edmu provozu port\u00e1lov\u00e9ho je\u0159\u00e1bu.<\/p>\n\n\n\n<p>Proto je v\u00fdvoj a v\u00fdzkum port\u00e1lov\u00fdch je\u0159\u00e1b\u016f pro ultran\u00edzk\u00e9 teploty nezbytn\u00fd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"design-characteristics-of-ultra-low-temperature-gantry-cranes\">Konstruk\u010dn\u00ed charakteristiky port\u00e1lov\u00fdch je\u0159\u00e1b\u016f pro ultran\u00edzk\u00e9 teploty<\/h2>\n\n\n\n<p>Aby bylo zaji\u0161t\u011bno, \u017ee port\u00e1lov\u00fd je\u0159\u00e1b m\u016f\u017ee norm\u00e1ln\u011b pracovat v prost\u0159ed\u00ed s n\u00edzkou teplotou, je nutn\u00e9 vy\u0159e\u0161it \u010dty\u0159i probl\u00e9my: jedn\u00edm je n\u00e1vrh k\u0159ehkosti materi\u00e1l\u016f v prost\u0159ed\u00ed s n\u00edzkou teplotou; druh\u00fdm je spolehlivostn\u00ed ochrana p\u0159evodov\u00e9ho mechanismu v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed; t\u0159et\u00ed je zah\u0159\u00edv\u00e1n\u00ed a opat\u0159en\u00ed pro uchov\u00e1n\u00ed tepla elektrick\u00fdch sou\u010d\u00e1st\u00ed v prost\u0159ed\u00ed s n\u00edzkou teplotou; a \u010dtvrt\u00fdm je uvoln\u011bn\u00ed vnit\u0159n\u00edch pnut\u00ed v port\u00e1lov\u00e9m je\u0159\u00e1bu zp\u016fsoben\u00fdch \u0161irok\u00fdmi zm\u011bnami teploty. Podle hlavn\u00edho vlivu n\u00edzkoteplotn\u00edho prost\u0159ed\u00ed na port\u00e1lov\u00fd je\u0159\u00e1b by m\u011bl n\u00e1vrh pln\u011b zohled\u0148ovat n\u00e1sleduj\u00edc\u00edch p\u011bt aspekt\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-anti-brittleness-study-of-steel-structure-in-the-low-temperature-environment\">1. Antik\u0159ehk\u00e1 studie ocelov\u00e9 konstrukce v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/h3>\n\n\n\n<p>Konstrukce port\u00e1lov\u00e9ho je\u0159\u00e1bu pat\u0159\u00ed k typick\u00e9 ocelov\u00e9 konstrukci sk\u0159\u00ed\u0148ov\u00e9ho nebo p\u0159\u00edhradov\u00e9ho nosn\u00edku, experiment dokazuje, \u017ee p\u0159i okoln\u00ed teplot\u011b pod -20C odolnost proti k\u0159ehkosti ocelov\u00e9 konstrukce rychle kles\u00e1 s poklesem pracovn\u00ed teploty \u010dtvercovou \u00fam\u011brnost\u00ed, tak\u017ee n\u00e1vrh k\u0159ehkosti a pevnostn\u00ed n\u00e1vrh ocelov\u00e9 konstrukce jsou stejn\u011b d\u016fle\u017eit\u00e9 v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed.<\/p>\n\n\n\n<p>Studiem mnoha destruktivn\u00edch p\u0159\u00edpad\u016f je prok\u00e1z\u00e1no, \u017ee \u010d\u00e1sti ocelov\u00e9 konstrukce, kter\u00e9 podl\u00e9haj\u00ed k\u0159ehk\u00e9mu po\u0161kozen\u00ed v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed, se v\u011bt\u0161inou vyskytuj\u00ed p\u0159i koncentraci nap\u011bt\u00ed zp\u016fsoben\u00e9 nespr\u00e1vn\u00fdm n\u00e1vrhem nebo technologi\u00ed zpracov\u00e1n\u00ed, v\u010detn\u011b pr\u016fnik\u016f svar\u016f, ostr\u00fdch roh\u016f, otvor\u016f a mutac\u00ed pr\u016f\u0159ezu. Tyto \u010d\u00e1sti v\u011bt\u0161\u00edho nap\u011bt\u00ed pravd\u011bpodobn\u011b zp\u016fsob\u00ed k\u0159ehk\u00e9 prask\u00e1n\u00ed a povedou k poru\u0161en\u00ed mechanick\u00fdch vlastnost\u00ed ocelov\u00e9 konstrukce. Z tohoto d\u016fvodu Henan Kuangshan Crane p\u0159i n\u00e1vrhu ocelov\u00e9 konstrukce p\u0159ijal n\u00e1sleduj\u00edc\u00ed opat\u0159en\u00ed, aby se vypo\u0159\u00e1dal s dopadem n\u00edzkoteplotn\u00edho prost\u0159ed\u00ed na ocelovou konstrukci.<\/p>\n\n\n\n<p>(1) Pou\u017eit\u00ed materi\u00e1l\u016f odoln\u00fdch v\u016f\u010di n\u00edzk\u00fdm teplot\u00e1m, jako je konstruk\u010dn\u00ed ocel Q345E, stabilita p\u0159i n\u00edzk\u00fdch teplot\u00e1ch a n\u00edzk\u00e9 k\u0159ehk\u00e9 prask\u00e1n\u00ed.<\/p>\n\n\n\n<p>(2) Konstruk\u010dn\u00ed n\u00e1vrh by se m\u011bl sna\u017eit pou\u017e\u00edt zaoblen\u00fd p\u0159echod; kdy\u017e mus\u00ed b\u00fdt konstrukce otev\u0159ena, nem\u011bla by m\u00edt ostr\u00e9 nebo zak\u0159iven\u00e9 rohy otvor\u016f, m\u011bla by b\u00fdt p\u0159ijata opat\u0159en\u00ed k pos\u00edlen\u00ed obvodov\u00e9 pevnosti otvoru, to znamen\u00e1 pou\u017eit\u00ed konstruk\u010dn\u00edho typu \u201ekrou\u017eku\u201c.<\/p>\n\n\n\n<p>(3) Pr\u016f\u0159ez hranolov\u00fdch nosn\u00edk\u016f by nem\u011bl b\u00fdt m\u011bn\u011bn n\u00e1hle a m\u011bla by b\u00fdt zachov\u00e1na ur\u010dit\u00e1 d\u00e9lka p\u0159echodov\u00e9ho \u00faseku, aby bylo mo\u017en\u00e9 jemn\u011b m\u011bnit nap\u011bt\u00ed.<\/p>\n\n\n\n<p>(4) Uspo\u0159\u00e1d\u00e1n\u00ed by se nem\u011blo p\u0159ekr\u00fdvat a p\u0159ekl\u00e1dat, ale m\u011blo by b\u00fdt vhodn\u011b rozpt\u00fdlen\u00e9; pokusit se zajistit, aby svar a sva\u0159ovan\u00e1 konstrukce byly bez deformac\u00ed; by nem\u011bly b\u00fdt pou\u017eity ke koncentraci nap\u011bt\u00ed je z\u00e1va\u017en\u011bj\u0161\u00ed asymetrick\u00fd jednostrann\u00fd p\u0159epl\u00e1tovan\u00fd svar, pokud je to mo\u017en\u00e9, pou\u017eit\u00ed tup\u00fdch spoj\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-protection-of-transmission-mechanism-in-the-low-temperature-environment\">2. Ochrana p\u0159evodov\u00e9ho mechanismu v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/h3>\n\n\n\n<p>P\u0159evodov\u00fd mechanismus port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s velmi n\u00edzkou teplotou je hlavn\u011b zvedac\u00ed mechanismus a ovl\u00e1dac\u00ed mechanismus dvou \u010d\u00e1st\u00ed, kter\u00e9 se skl\u00e1daj\u00ed z \u0159ady d\u00edl\u016f vyroben\u00fdch z r\u016fzn\u00fdch materi\u00e1l\u016f, jako jsou motory, redukce, spojky, hnac\u00ed h\u0159\u00eddele, brzdy, dvojkol\u00ed atd. Tyto \u010d\u00e1sti maj\u00ed r\u016fzn\u00e9 destruktivn\u00ed tendence v prost\u0159ed\u00ed s n\u00edzkou teplotou, Henan Kuangshan Crane pou\u017e\u00edv\u00e1 n\u00e1sleduj\u00edc\u00ed opat\u0159en\u00ed, aby se s nimi vyrovnal:<\/p>\n\n\n\n<p>(1) Pokuste se pou\u017e\u00edt integrovanou p\u0159evodovou strukturu ke sn\u00ed\u017een\u00ed p\u0159enosov\u00e9ho spojen\u00ed a sn\u00ed\u017een\u00ed p\u0159enosu po\u017eadovan\u00fdch d\u00edl\u016f, zat\u00edmco integrovan\u00e1 konstrukce zab\u00edr\u00e1 mal\u00fd prostor, snadno se instaluje a prov\u00e1d\u00ed r\u016fzn\u00e9 ochrany.<\/p>\n\n\n\n<p>(2) Prost\u0159ednictv\u00edm rozumn\u00e9ho uspo\u0159\u00e1d\u00e1n\u00ed konstrukce se k ochran\u011b hlavn\u00edho p\u0159enosov\u00e9ho za\u0159\u00edzen\u00ed pou\u017e\u00edv\u00e1 ochrann\u00fd kryt typu tepeln\u00e9 izolace. Prost\u0159ednictv\u00edm uzav\u0159en\u00e9ho konstruk\u010dn\u00edho uspo\u0159\u00e1d\u00e1n\u00ed zvedac\u00edho voz\u00edku do uzav\u0159en\u00e9 konstrukce, pou\u017eit\u00ed tepeln\u011b izola\u010dn\u00edch materi\u00e1l\u016f uzav\u0159en\u00fdch a n\u00e1sledn\u011b instalovan\u00fdch uvnit\u0159 za\u0159\u00edzen\u00ed pro detekci teploty voz\u00edku, kdy\u017e je okoln\u00ed teplota ni\u017e\u0161\u00ed ne\u017e nastaven\u00e1 hodnota teploty, automatick\u00e9 spu\u0161t\u011bn\u00ed topn\u00e9ho za\u0159\u00edzen\u00ed. Vnit\u0159n\u00ed teplota voz\u00edku je efektivn\u011b \u0159\u00edzena ve vhodn\u00e9m rozsahu, \u010d\u00edm\u017e se eliminuje vliv n\u00edzkoteplotn\u00edho prost\u0159ed\u00ed na provoz voz\u00edku.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-enclosed-trolley-scaled.jpg\" alt=\"\" class=\"wp-image-6277\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-enclosed-trolley-scaled.jpg 2560w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-enclosed-trolley-1536x1152.jpg 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-enclosed-trolley-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<p>(3) U \u010d\u00e1sti p\u0159evodov\u00fdch d\u00edl\u016f, kter\u00e9 je obt\u00ed\u017en\u00e9 chr\u00e1nit, krom\u011b pot\u0159eby n\u00edzkoteplotn\u00edho prost\u0159ed\u00ed, mechanick\u00e9 zkou\u0161ky k\u0159ehkosti materi\u00e1lu, ale tak\u00e9 p\u0159i v\u00fdb\u011bru maziva, sn\u00ed\u017eit dopad provozu p\u0159ijmout opat\u0159en\u00ed. Port\u00e1lov\u00e9 je\u0159\u00e1by s extr\u00e9mn\u011b n\u00edzkou teplotou by m\u011bly pou\u017e\u00edvat motory s m\u011bkk\u00fdm rozb\u011bhem a \u0159\u00edzen\u00ed PLC + frekven\u010dn\u00edho m\u011bni\u010de, tak\u017ee celkov\u00fd provoz je hladk\u00fd a stabiln\u00ed a sni\u017euje n\u00e1razov\u00e9 zat\u00ed\u017een\u00ed v procesu spou\u0161t\u011bn\u00ed provozu<\/p>\n\n\n\n<p>(4) Pou\u017eit\u00ed materi\u00e1l\u016f odoln\u00fdch v\u016f\u010di n\u00edzk\u00fdm teplot\u00e1m, jako je ocel Q345E atd., by m\u011blo b\u00fdt p\u0159ed pou\u017eit\u00edm otestov\u00e1no na mechanick\u00e9 vlastnosti v prost\u0159ed\u00ed s n\u00edzkou teplotou (-45C). Pro podniky, kter\u00e9 to mohou ud\u011blat, by hlavn\u00ed suroviny m\u011bly b\u00fdt prov\u00e1d\u011bny v testu prost\u0159ed\u00ed s n\u00edzkou teplotou, ale tak\u00e9 pro hodnocen\u00ed procesu sva\u0159ov\u00e1n\u00ed, zejm\u00e9na teplota svaru -45 C, hodnocen\u00ed procesu svarov\u00e9ho kovu a testov\u00e1n\u00ed mechanick\u00fdch vlastnost\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-preheating-and-insulation-of-electrical-components-in-a-low-temperature-environment\">3. P\u0159edeh\u0159ev a izolace elektrick\u00fdch sou\u010d\u00e1stek v n\u00edzkoteplotn\u00edm prost\u0159ed\u00ed<\/h3>\n\n\n\n<p>Norm\u00e1ln\u00ed pracovn\u00ed teplota elektrick\u00fdch sou\u010d\u00e1st\u00ed je obecn\u011b 0C ~ 40C, p\u0159\u00edli\u0161 vysok\u00e1 nebo p\u0159\u00edli\u0161 n\u00edzk\u00e1 teplota bude m\u00edt v\u011bt\u0161\u00ed dopad na elektrick\u00e9 sou\u010d\u00e1sti. Podle statistik, kdy\u017e je teplota ni\u017e\u0161\u00ed ne\u017e norm\u00e1ln\u00ed teplota 10C, PLC, frekven\u010dn\u00ed m\u011bni\u010d a dal\u0161\u00ed ovl\u00e1dac\u00ed prvky, spolehlivost ovl\u00e1dac\u00edch prvk\u016f klesne o 25%. Aby bylo zaji\u0161t\u011bno, \u017ee elektrick\u00fd \u0159\u00eddic\u00ed syst\u00e9m funguje spr\u00e1vn\u011b, podnik\u00e1 Henan Kuangshan Crane n\u00e1sleduj\u00edc\u00ed opat\u0159en\u00ed:<\/p>\n\n\n\n<p>(1) Pro izolaci elektrick\u00e9 m\u00edstnosti by m\u011bly b\u00fdt z\u0159\u00edzeny port\u00e1lov\u00e9 je\u0159\u00e1by s velmi n\u00edzkou teplotou, v n\u00ed budou instalov\u00e1ny elektrick\u00e9 komponenty a elektrick\u00e1 m\u00edstnost bude instalov\u00e1na s topn\u00fdm za\u0159\u00edzen\u00edm. Kdy\u017e je okoln\u00ed teplota ni\u017e\u0161\u00ed ne\u017e -20 C, port\u00e1lov\u00e9 je\u0159\u00e1by s velmi n\u00edzkou teplotou by se m\u011bly p\u0159edeh\u0159\u00e1t, kdy\u017e za\u010dnou pracovat v elektrick\u00e9 m\u00edstnosti, a pot\u00e9, co dos\u00e1hne prost\u0159ed\u00ed pokojov\u00e9 teploty, zah\u00e1jit norm\u00e1ln\u00ed pr\u00e1ci.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-insulated-electrical-room-scaled.jpg\" alt=\"\" class=\"wp-image-6278\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-insulated-electrical-room-scaled.jpg 2560w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-insulated-electrical-room-1536x1152.jpg 1536w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2024\/09\/ultra-low-temperature-gantry-cranes-insulated-electrical-room-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<p>(2) Nap\u00e1jec\u00ed kabel pou\u017e\u00edv\u00e1 pry\u017eov\u00fd kabel, kter\u00fd je odoln\u00fd v\u016f\u010di prost\u0159ed\u00ed s n\u00edzkou teplotou a ultrafialov\u00e9mu z\u00e1\u0159en\u00ed m\u00edsto kabelu z PVC, aby se prodlou\u017eila \u017eivotnost kabelu v prost\u0159ed\u00ed s n\u00edzkou teplotou.<\/p>\n\n\n\n<p>(3) Motory zdvihac\u00edho mechanismu a pojezdov\u00e9ho mechanismu jsou vybaveny oh\u0159\u00edva\u010di pro p\u0159edeh\u0159\u00e1t\u00ed p\u0159ed prac\u00ed v prost\u0159ed\u00ed s n\u00edzkou teplotou a pro udr\u017een\u00ed tepla po pr\u00e1ci; u port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s extr\u00e9mn\u011b n\u00edzkou teplotou pou\u017e\u00edvan\u00fdch venku nen\u00ed \u00farove\u0148 ochrany motor\u016f ni\u017e\u0161\u00ed ne\u017e IP66.<\/p>\n\n\n\n<p>(4) Elektrick\u00e9 sou\u010d\u00e1sti, kter\u00e9 nelze instalovat v izolovan\u00e9 elektrick\u00e9 m\u00edstnosti, by m\u011bly b\u00fdt instalov\u00e1ny v elektrick\u00e9 sk\u0159\u00edni s \u00farovn\u00ed ochrany nejm\u00e9n\u011b IP55 a elektrick\u00e1 sk\u0159\u00ed\u0148 by m\u011bla b\u00fdt tak\u00e9 vybavena topn\u00fdm a izola\u010dn\u00edm za\u0159\u00edzen\u00edm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-internal-stress-release-of-gantry-crane-structure-caused-by-a-wide-range-of-temperature-change\">4. Uvoln\u011bn\u00ed vnit\u0159n\u00edho nap\u011bt\u00ed konstrukce port\u00e1lov\u00e9ho je\u0159\u00e1bu zp\u016fsoben\u00e9 \u0161irok\u00fdm rozsahem teplotn\u00edch zm\u011bn<\/h3>\n\n\n\n<p>Oblasti s vysokou zem\u011bpisnou \u0161\u00ed\u0159kou v zimn\u00edch a letn\u00edch okoln\u00edch teplot\u00e1ch obrovsk\u00e9 teplotn\u00ed rozd\u00edly zp\u016fsob\u00ed tepelnou rozta\u017enost a smr\u0161t\u011bn\u00ed materi\u00e1lu, ocelov\u00e1 konstrukce port\u00e1lov\u00e9ho je\u0159\u00e1bu s velk\u00fdm rozp\u011bt\u00edm bude m\u00edt obrovsk\u00fd dopad na je\u0159\u00e1b Henan Kuangshan, aby pou\u017eil vhodn\u00e1 opat\u0159en\u00ed, aby se vyrovnal s teplotn\u00edmi zm\u011bnami zp\u016fsoben\u00fdmi zm\u011bnami vnit\u0159n\u00edho nap\u011bt\u00ed v konstrukci. <\/p>\n\n\n\n<p>V prvn\u00ed \u0159ad\u011b by m\u011bla b\u00fdt ocelov\u00e1 konstrukce navr\u017eena se symetrickou konstrukc\u00ed s rovnom\u011brn\u00fdmi zm\u011bnami pr\u016f\u0159ezu, aby bylo mo\u017en\u00e9 \u0159\u00eddit deformaci cel\u00e9 konstrukce se zm\u011bnami teplot. <\/p>\n\n\n\n<p>Za druh\u00e9, ocelov\u00e1 konstrukce by m\u011bla co nejv\u00edce p\u0159ijmout statick\u00fd n\u00e1vrh konstrukce spolu s pou\u017eit\u00edm nastaviteln\u00e9ho lo\u017eiska s kuli\u010dkov\u00fdm z\u00e1v\u011bsem, kter\u00e9 m\u016f\u017ee eliminovat vnit\u0159n\u00ed pnut\u00ed zp\u016fsoben\u00e9 deformac\u00ed ocelov\u00e9 konstrukce. Je t\u0159eba poznamenat, \u017ee pou\u017eit\u00ed statick\u00e9 konstrukce sn\u00ed\u017e\u00ed tuhost cel\u00e9 konstrukce, kter\u00e1 je n\u00e1chyln\u00e1 na st\u00e9k\u00e1n\u00ed ultran\u00edzkoteplotn\u00edch port\u00e1lov\u00fdch je\u0159\u00e1b\u016f, hlod\u00e1n\u00ed kolejnic a dal\u0161\u00ed jevy, proto je nutn\u00e9 zajistit stabiln\u00ed provoz port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s ultran\u00edzk\u00fdmi teplotami pomoc\u00ed elektrick\u00e9ho vyrovn\u00e1n\u00ed, nastaven\u00edm horizont\u00e1ln\u00edch vodic\u00edch kol a dal\u0161\u00edmi opat\u0159en\u00edmi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-safety-design\">5. Bezpe\u010dnostn\u00ed design<\/h3>\n\n\n\n<p>Je\u0159\u00e1bov\u00fd zdvihac\u00ed mechanismus vyu\u017e\u00edvaj\u00edc\u00ed charakteristiky \u201ekonstantn\u00ed teploty\u201c konstrukce uzav\u0159en\u00e9 konstrukce; Pojezdov\u00fd mechanismus voz\u00edku by m\u011bl vyu\u017e\u00edvat pohon t\u0159i v jednom, tedy motor, reduktor, integrovan\u00fd pojezdov\u00fd mechanismus brzdy a pou\u017eit\u00ed kopytov\u00e9ho brzd\u011bn\u00ed, v\u00fdb\u011br maziv odoln\u00fdch v\u016f\u010di n\u00edzk\u00fdm teplot\u00e1m.<\/p>\n\n\n\n<p>Port\u00e1lov\u00e9 je\u0159\u00e1by s extr\u00e9mn\u011b n\u00edzkou teplotou se pou\u017e\u00edvaj\u00ed venku, Henan Kuangshan Crane navrhl za\u0159\u00edzen\u00ed pro oh\u0159ev kolej\u00ed a mechanismus pro \u0161kr\u00e1b\u00e1n\u00ed sn\u011bhu, aby se zabr\u00e1nilo nadm\u011brn\u00e9mu sn\u011bhu, n\u00e1mraze na kolej\u00edch a uklouznut\u00ed, co\u017e m\u00e1 vliv na bezpe\u010dn\u00e9 pou\u017e\u00edv\u00e1n\u00ed je\u0159\u00e1b\u016f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"summarize\">Shrnout<\/h2>\n\n\n\n<p>P\u0159i n\u00e1vrhu port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s velmi n\u00edzkou teplotou je t\u0159eba zv\u00e1\u017eit pou\u017eit\u00ed nov\u00fdch materi\u00e1l\u016f, nov\u00fdch technologi\u00ed a nov\u00fdch technik pro inovativn\u00ed v\u00fdvoj. Henan Kuangshan Crane za \u00fasp\u011b\u0161n\u00fd v\u00fdvoj a aplikaci rusk\u00e9ho projektu p\u0159\u00edstavn\u00edho port\u00e1lov\u00e9ho je\u0159\u00e1bu Krasnodar, na podporu inovac\u00ed port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s ultran\u00edzkou teplotou, sehr\u00e1l pozitivn\u00ed roli, zejm\u00e9na pro extr\u00e9mn\u011b n\u00edzk\u00fd stav ocelov\u00e9 konstrukce port\u00e1lov\u00fdch je\u0159\u00e1b\u016f s ultran\u00edzkou teplotou a elektrickou spolehlivost a dal\u0161\u00ed technologie, kter\u00e9 nashrom\u00e1\u017edily \u00fadaje a zku\u0161enosti. Hlavn\u00ed technick\u00e9 \u00fasp\u011bchy lze aplikovat i na design v\u00fdrobk\u016f pou\u017e\u00edvan\u00fdch v jin\u00fdch speci\u00e1ln\u00edch geografick\u00fdch oblastech.<\/p>","protected":false},"excerpt":{"rendered":"N\u00e1\u0161 klient zakoupil port\u00e1lov\u00e9 je\u0159\u00e1by s velmi n\u00edzkou teplotou pro p\u0159\u00edstav Krasnodar v ji\u017en\u00edm Rusku, kter\u00fd d\u00edky sv\u00e9 vysok\u00e9 zem\u011bpisn\u00e9 \u0161\u00ed\u0159ce na Sibi\u0159i za\u017e\u00edv\u00e1 krut\u00e9 zimy. Aby bylo zaji\u0161t\u011bno, \u017ee je\u0159\u00e1b pracuje p\u0159i teplot\u00e1ch ni\u017e\u0161\u00edch ne\u017e 40 \u00b0C, byly p\u0159i navrhov\u00e1n\u00ed a v\u00fdb\u011bru ocelov\u00fdch konstrukc\u00ed, mechanick\u00fdch sou\u010d\u00e1st\u00ed a elektrick\u00fdch syst\u00e9m\u016f v\u011bnov\u00e1ny zvl\u00e1\u0161tn\u00ed pozornost. Specializovan\u00fd t\u00fdm [\u2026]","protected":false},"featured_media":6274,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[118,86,213,212],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/6266"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":10,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/6266\/revisions"}],"predecessor-version":[{"id":6784,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/6266\/revisions\/6784"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media\/6274"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media?parent=6266"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_category?post=6266"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=6266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}