{"id":2031,"date":"2025-02-27T19:40:33","date_gmt":"2025-02-27T11:40:33","guid":{"rendered":"https:\/\/led.amasly.com\/?p=2031"},"modified":"2025-03-06T22:24:19","modified_gmt":"2025-03-06T14:24:19","slug":"electrical-explosion-proof-and-ventilation-requirements-for-gas-boiler-rooms","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/sk\/explosion-proof-equipment\/electrical-explosion-proof-and-ventilation-requirements-for-gas-boiler-rooms\/","title":{"rendered":"Po\u017eiadavky na elektrick\u00fa ochranu proti v\u00fdbuchu a vetranie plynov\u00fdch kotoln\u00ed"},"content":{"rendered":"

1 dizajn plynovej kotolne odoln\u00fd proti v\u00fdbuchu<\/strong><\/strong><\/h2>\n\n\n\n

Olej, plynov\u00e1 kotol\u0148a kotol\u0148a plynov\u00fd regul\u00e1tor miestnos\u0165, palivov\u00e9 \u010derpadlo miestnos\u0165, pr\u00e1\u0161kov\u00e9 uhlie pr\u00edpravov\u0148a, uhlie drvi\u010dka miestnos\u0165 a uhlie dopravn\u00e9 chodby s nebezpe\u010denstvom v\u00fdbuchu oblasti, ako je klasifik\u00e1cia, by mali by\u0165 v s\u00falade s platn\u00fdmi \u010d\u00ednskymi a Eur\u00f3pskej \u00fanie noriem, \u201cV\u00fdbuch nebezpe\u010dn\u00e9ho prostredia Elektrick\u00e9 in\u0161tal\u00e1cie Design Code\u201d GB50058 pr\u00edslu\u0161n\u00fdch ustanoven\u00ed; plynov\u00e1 kotol\u0148a kotol\u0148a plynov\u00fd regul\u00e1tor miestnos\u0165 patr\u00ed do oblasti s nebezpe\u010denstvom v\u00fdbuchu.<\/p>\n\n\n\n

\"\"<\/a><\/figure><\/div>\n\n\n\n

\u201cBezpe\u010dnostn\u00fd indik\u00e1tor n\u00fadzovej evaku\u00e1cie z plynovej kotolne\u201d v bl\u00edzkosti oblasti s nebezpe\u010denstvom v\u00fdbuchu nad alebo nad v\u00fdbuchom mus\u00ed by\u0165 navrhnut\u00fd pre nev\u00fdbu\u0161n\u00fd typ.<\/p>\n\n\n\n

Sp\u013a\u0148aj\u00fa jednu z nasleduj\u00facich podmienok a m\u00f4\u017eu by\u0165 zaraden\u00e9 do kateg\u00f3rie priestorov bez nebezpe\u010denstva v\u00fdbuchu: 1, neexistuje zdroj \u00faniku a nie je pravdepodobnos\u0165 preniknutia hor\u013eav\u00fdch l\u00e1tok do priestoru.<\/p>\n\n\n\n

2. Maxim\u00e1lna koncentr\u00e1cia hor\u013eav\u00fdch l\u00e1tok, ktor\u00e1 sa m\u00f4\u017ee vyskytn\u00fa\u0165, nepresahuje 10 % dolnej medze v\u00fdbu\u0161nosti.<\/p>\n\n\n\n

3, vo v\u00fdrobnom procese s pou\u017eit\u00edm otvoren\u00e9ho oh\u0148a v bl\u00edzkosti zariadenia alebo hor\u00facich \u010dast\u00ed povrchovej teploty prekra\u010duje teplotu vznietenia hor\u013eav\u00fdch l\u00e1tok v oblasti v bl\u00edzkosti zariadenia;.<\/p>\n\n\n\n

4. Mimo are\u00e1lu v\u00fdrobn\u00e9ho z\u00e1vodu, na vo\u013enom priestranstve alebo otvorene zriaden\u00e9 na prepravu hor\u013eav\u00fdch l\u00e1tok v z\u00f3ne nadzemn\u00e9ho potrubia, ale jeho ventil sa ur\u010duje individu\u00e1lne.<\/p>\n\n\n\n

Na z\u00e1klade 3 polo\u017eiek: plynov\u00fa kotol\u0148u mo\u017eno rozdeli\u0165 na nev\u00fdbu\u0161n\u00fd priestor s nebezpe\u010denstvom v\u00fdbuchu.<\/p>\n\n\n\n

\u00danik plynu je mo\u017en\u00fd, ak koncentr\u00e1cia prekro\u010d\u00ed 10% dolnej hranice medze v\u00fdbu\u0161nosti, oblas\u0165 v bl\u00edzkosti strechy kotolne je sklad zemn\u00e9ho plynu, svietidl\u00e1 a sp\u00edna\u010de pou\u017ei\u0165 nev\u00fdbu\u0161n\u00fd typ.<\/p>\n\n\n\n

Koncentr\u00e1cia \u00faniku hor\u013eav\u00e9ho plynu prekro\u010d\u00ed 25% dolnej hranice medze v\u00fdbu\u0161nosti, alarm \u00faniku plynu vydan\u00fd zvukov\u00fdmi a vizu\u00e1lnymi popla\u0161n\u00fdmi sign\u00e1lmi a spustenie ventil\u00e1tora na ods\u00e1vanie pri nehode, ke\u010f koncentr\u00e1cia \u00faniku dosiahne 50% dolnej hranice medze v\u00fdbu\u0161nosti, ale aj okam\u017eit\u00e9 vypnutie zdroja zemn\u00e9ho plynu do pr\u00edvodn\u00fdch plynov\u00fdch siet\u00ed celkov\u00e9ho pr\u00edvodn\u00e9ho elektromagnetick\u00e9ho ventilu, kotolne v bl\u00edzkosti strechy svietidiel a sp\u00edna\u010dov, v\u00fdber ventil\u00e1tora na ods\u00e1vanie pri nehode nev\u00fdbu\u0161n\u00e9ho typu.<\/p>\n\n\n\n

Plynov\u00e1 kotol\u0148a okrem plynov\u00e9ho regul\u00e1tora patr\u00ed do oblasti s nebezpe\u010denstvom v\u00fdbuchu a \u201cpredpisy o v\u00fdbuchu\u201d pre elektrick\u00fa kon\u0161trukciu odoln\u00fa proti v\u00fdbuchu, plynov\u00e1 kotol\u0148a a jej pri\u013eahl\u00e1 riadiaca miestnos\u0165 a in\u00e9 pomocn\u00e9 miestnosti a in\u00e9 elektrick\u00e9 kon\u0161trukcie by mali by\u0165 v s\u00falade s kon\u0161trukciou prostredia bez nebezpe\u010denstva v\u00fdbuchu.<\/p>\n\n\n\n

2 plynov\u00e9 kotolne bezpe\u010dnostn\u00e9 opatrenia<\/strong><\/strong><\/h2>\n\n\n\n

Zaveden\u00e9 do kotolne vonkaj\u0161ieho plynovodu, na bezpe\u010dnom a \u013eahko ovl\u00e1date\u013enom mieste by malo by\u0165 nain\u0161talovan\u00e9 popla\u0161n\u00e9 zariadenie koncentr\u00e1cie plynu v kotolni spojen\u00e9 s n\u00fadzov\u00fdm uzatv\u00e1rac\u00edm ventilom, ventil by mal by\u0165 nain\u0161talovan\u00fd za tlakomerom plynu.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Plynovod mus\u00ed by\u0165 vybaven\u00fd vyp\u00fa\u0161\u0165ac\u00edm potrub\u00edm, otvorom na odber vzoriek a otvorom na vyfukovanie a mus\u00ed sp\u013a\u0148a\u0165 tieto ustanovenia.<\/p>\n\n\n\n

1, jeho umiestnenie by malo by\u0165 schopn\u00e9 potrubia a pr\u00edslu\u0161enstva v r\u00e1mci f\u00fakania plynu alebo vzduchu;.<\/p>\n\n\n\n

2, rozptylov\u00e9 potrubie m\u00f4\u017ee by\u0165 spojen\u00e9 do hlavn\u00e9ho v\u00fdvodu do vonkaj\u0161ieho prostredia, v\u00fdstup by mal by\u0165 vy\u0161\u0161\u00ed ako hrebe\u0148 kotolne viac ako 2 m a mal by by\u0165 uvo\u013enen\u00fd tak, aby plyn nevytekal do susedn\u00fdch budov a nas\u00e1val ventila\u010dn\u00e9 zariadenia.<\/p>\n\n\n\n

3, hustota rozptylu plynu ako vzduch, by sa mala pou\u017e\u00edva\u0165 v emisi\u00e1ch do ovzdu\u0161ia alebo hor\u00e1ka a mala by sp\u013a\u0148a\u0165 minim\u00e1lnu frekvenciu na strane proti vetru po\u017eiadaviek na bezpe\u010dnos\u0165 a ochranu \u017eivotn\u00e9ho prostredia v regi\u00f3ne; ak m\u00e1 z\u00e1vod syst\u00e9m na odvzdu\u0161\u0148ovanie hor\u00e1ka, je vhodn\u00e9 vyp\u00fa\u0161\u0165a\u0165 plyn do syst\u00e9mu.<\/p>\n\n\n\n

13.3.5 Priemer r\u00farky plynov\u00e9ho v\u00fdtla\u010dn\u00e9ho potrubia by sa mal ur\u010di\u0165 pod\u013ea objemu f\u00fakacej \u010dasti a \u010dasu f\u00fakania; objem f\u00fakania sa m\u00f4\u017ee vypo\u010d\u00edta\u0165 pod\u013ea f\u00fakacej \u010dasti 10 kr\u00e1t ~ 20 kr\u00e1t objemu \u010dasu f\u00fakania sa m\u00f4\u017ee pou\u017ei\u0165 na 15 min ~ 20 min; f\u00fakac\u00edm plynom m\u00f4\u017ee by\u0165 dus\u00edk alebo in\u00e9 inertn\u00e9 plyny.<\/p>\n\n\n\n

13.3.6 Plynov\u00e9 potrubie kotolne by nemalo prech\u00e1dza\u0165 cez hor\u013eav\u00e9 alebo v\u00fdbu\u0161n\u00e9 sklady, slu\u017eobn\u00e9 priestory, rozvodne a rozvodne, k\u00e1blov\u00e9 kan\u00e1ly (\u0161achty), v\u00fd\u0165ahov\u00e9 \u0161achty, ventila\u010dn\u00e9 priekopy, kan\u00e1ly, dymovody a koroz\u00edvne vlastnosti objektu.<\/p>\n\n\n\n

13.3.7 Ka\u017ed\u00fd plynov\u00fd kme\u0148 kotla by mal by\u0165 podporen\u00fd spo\u013eahliv\u00fdm v\u00fdkonom skupiny plynov\u00fdch ventilov, skupina ventilov pred tlakom pr\u00edvodu plynu a \u0161pecifik\u00e1cie skupiny ventilov by mali sp\u013a\u0148a\u0165 po\u017eiadavky na maxim\u00e1lne za\u0165a\u017eenie hor\u00e1ka; z\u00e1kladn\u00e9 zlo\u017eenie a postupnos\u0165 skupiny ventilov by mali by\u0165 vyp\u00ednac\u00ed ventil, manometer, filter, ventil regul\u00e1tora tlaku, vlnit\u00fd prij\u00edma\u010d, 2-\u00farov\u0148ov\u00e9 alebo kombinovan\u00e9 elektromagnetick\u00e9 ventily na detekciu netesnost\u00ed, pred a za ventilom tlakov\u00e9 sp\u00edna\u010de a mot\u00fdlov\u00e9 ventily na regul\u00e1ciu prietoku; zapa\u013eovanie plynovodu by sa malo pou\u017e\u00edva\u0165 od hor\u00e1ka pred plynom Kme\u0148ov\u00e9 potrubie od hor\u00e1ka pred plynom 2 alebo kombinovan\u00fd elektromagnetick\u00fd ventil na detekciu \u00faniku pred veden\u00edm a malo by by\u0165 vybaven\u00e9 uzatv\u00e1rac\u00edm ventilom a 2 elektromagnetick\u00fdmi ventilmi na svojej \u00farovni.<\/p>\n\n\n\n

13.3.8 Uzatv\u00e1rac\u00ed ventil plynov\u00e9ho ventilu kotla pred tlakom pr\u00edvodu plynu by sa mal ur\u010di\u0165 v s\u00falade s po\u017eiadavkami hor\u00e1ka a mal by by\u0165 nastaven\u00fd na 5 kPa ~ 20 kPa medzi kvalitou prietoku pr\u00edvodn\u00e9ho plynov\u00e9ho ventilu by mal by\u0165 schopn\u00fd zabezpe\u010di\u0165, aby kotol v prev\u00e1dzke s menovit\u00fdm za\u0165a\u017een\u00edm, stabilitou spa\u013eovania hor\u00e1ka.<\/p>\n\n\n\n

13.3.11 plynovod vertik\u00e1lne cez podlahu budovy, mal by by\u0165 zriaden\u00fd v samostatnej r\u00farkovej \u0161achte a mal by by\u0165 polo\u017een\u00fd k vonkaj\u0161ej stene; cez r\u00farkov\u00e9 \u0161achty v podlahe budovy by mali by\u0165 ka\u017ed\u00e9 2 alebo 3 vrstvy zriaden\u00e9 najmenej na hranici po\u017eiarnej odolnosti podlahy po\u017eiarneho \u00faseku; pri\u013eahl\u00e9 k spodnej \u010dasti dvoch po\u017eiarnych prie\u010dok by mali by\u0165 zriaden\u00e9 po\u017eiarne dvere triedy C; spodn\u00e1 \u010das\u0165 po\u017eiarnych dver\u00ed budovy na pr\u00edzem\u00ed potrubn\u00fdch studn\u00ed by mala by\u0165 zriaden\u00e1 s elektricky ovl\u00e1danou po\u017eiarnou klapkou Vzduchov\u00e1 nas\u00e1vacia \u017eal\u00fazia; potrubn\u00e9 studne by mali by\u0165 zriaden\u00e9 v hornej \u010dasti atmosf\u00e9rickej \u017eal\u00fazie; potrubn\u00e9 studne by mali pou\u017e\u00edva\u0165 prirodzen\u00e9 vetranie.<\/p>\n\n\n\n

13.3.12 plynov\u00e9 st\u00fapa\u010dky v potrubn\u00fdch \u0161acht\u00e1ch by sa nemali nastavova\u0165 na ventil.<\/p>\n\n\n\n

13.3.13 plynov\u00e9 potrubie a pr\u00edslu\u0161enstvo je pr\u00edsne zak\u00e1zan\u00e9 pou\u017e\u00edva\u0165 liatinov\u00e9 diely; v po\u017eiarnej z\u00f3ne pou\u017e\u00edva\u0165 ventil, mal by ma\u0165 oh\u0148ovzdorn\u00e9 vlastnosti.<\/p>\n\n\n\n

3 nehodov\u00fd ventila\u010dn\u00fd syst\u00e9m<\/strong><\/strong><\/h2>\n\n\n\n

V ostatn\u00fdch budov\u00e1ch v kotolni na olej, plyn, kotolni by mal by\u0165 zriaden\u00fd nez\u00e1visl\u00fd syst\u00e9m pr\u00edvodu a odvodu vzduchu, vetracie zariadenie by malo by\u0165 nev\u00fdbu\u0161n\u00e9, vetranie mus\u00ed sp\u013a\u0148a\u0165 tieto ustanovenia.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

1, pou\u017eitie plynu ako paliva, norm\u00e1lne vetranie by nemalo by\u0165 menej ako 6 kr\u00e1t za hodinu, po\u010det neh\u00f4d by nemal by\u0165 menej ako 12 kr\u00e1t za hodinu.<\/p>\n\n\n\n

2, kotol\u0148a je zriaden\u00e1 v polosuter\u00e9ne alebo polosuter\u00e9ne, jej norm\u00e1lne vetranie by nemalo by\u0165 menej ako 6 kr\u00e1t za hodinu, po\u010det neh\u00f4d by nemal by\u0165 men\u0161\u00ed ako 12 kr\u00e1t za hodinu.<\/p>\n\n\n\n

3, kotol\u0148a je umiestnen\u00e1 v podzem\u00ed alebo v suter\u00e9ne, po\u010det v\u00fdmen vzduchu za hodinu by nemal by\u0165 men\u0161\u00ed ako 12-kr\u00e1t.<\/p>\n\n\n\n

4, celkov\u00e9 mno\u017estvo \u010derstv\u00e9ho vzduchu posielan\u00e9ho do kotolne mus\u00ed by\u0165 v\u00e4\u010d\u0161ie ako kotol\u0148a ka\u017ed\u00fa hodinu 3-n\u00e1sobok mno\u017estva v\u00fdmeny vzduchu.<\/p>\n\n\n\n

5. Mno\u017estvo \u010derstv\u00e9ho vzduchu posielan\u00e9ho do riadiacej miestnosti sa vypo\u010d\u00edta pod\u013ea maxim\u00e1lneho po\u010dtu oper\u00e1torov na smenu.<\/p>\n\n\n\n

15.3.8 miestnos\u0165 s regul\u00e1torom plynu a in\u00e9 miestnosti s nebezpe\u010denstvom v\u00fdbuchu by nemali ma\u0165 v\u00fdmenu vzduchu menej ako 6-kr\u00e1t za hodinu; ak prirodzen\u00e1 ventil\u00e1cia nem\u00f4\u017ee sp\u013a\u0148a\u0165 po\u017eiadavky, mali by sa zriadi\u0165 mechanick\u00e9 ventila\u010dn\u00e9 zariadenia a mali by sa zriadi\u0165 nie menej ako 12-kr\u00e1t za hodinu v\u00fdmeny vzduchu ventila\u010dn\u00e9ho zariadenia pri nehode; ventila\u010dn\u00e9 zariadenie by malo by\u0165 odoln\u00e9 proti v\u00fdbuchu.<\/p>\n\n\n\n

15.3.10 Umiestnenie v\u00fdstupu nas\u00e1vania mechanick\u00e9ho vetrania miestnosti by sa malo zriadi\u0165 v s\u00falade s t\u00fdmito ustanoveniami.<\/p>\n\n\n\n

1, ak je relat\u00edvna hustota plynu alebo oleja men\u0161ia alebo rovn\u00e1 0,75, umiestnenie nas\u00e1vacieho v\u00fdstupu by malo by\u0165 nastaven\u00e9 v hornej \u010dasti, pri\u010dom vzdialenos\u0165 nas\u00e1vacieho v\u00fdstupu na okraji roviny od stropu alebo strechy by nemala by\u0165 v\u00e4\u010d\u0161ia ako 0,1 m.<\/p>\n\n\n\n

2 ke\u010f je relat\u00edvna hustota plynu alebo oleja v\u00e4\u010d\u0161ia ako 0,75, umiestnenie v\u00fdstupu nas\u00e1vania by malo by\u0165 nastaven\u00e9 v dolnej \u010dasti, v\u00fdstup nas\u00e1vania pod okrajom vzdialenosti od podlahy by nemal by\u0165 v\u00e4\u010d\u0161\u00ed ako 0,3 m.<\/p>\n\n\n\n

Ke\u010f sa pr\u00fad vzduchu pri vetran\u00ed v priestore s nebezpe\u010denstvom v\u00fdbuchu m\u00f4\u017ee r\u00fdchlo zriedi\u0165 na doln\u00fa hrani\u010dn\u00fa hodnotu v\u00fdbuchu 25% alebo menej, m\u00f4\u017ee sa ozna\u010di\u0165 ako dobre vetran\u00fd a mal by by\u0165 v s\u00falade s t\u00fdmito ustanoveniami.<\/p>\n\n\n\n

1 za dobre vetran\u00e9 miesta mo\u017eno ozna\u010di\u0165 tieto miesta.<\/p>\n\n\n\n

1) miesta pod hol\u00fdm nebom.<\/p>\n\n\n\n

2) otvoren\u00e9 budovy, v sten\u00e1ch budov, stre\u0161n\u00fdch otvoroch, ich ve\u013ekosti a umiestnen\u00ed, aby sa zabezpe\u010dilo, \u017ee vetranie vo vn\u00fatri budovy je rovnocenn\u00e9 s \u00fa\u010dinkom otvoren\u00e9ho priestoru.<\/p>\n\n\n\n

3) Neotvoren\u00e9 budovy s trval\u00fdmi otvormi na prirodzen\u00e9 vetranie.<\/p>\n\n\n\n

4) V uzavret\u00fdch priestoroch zabezpe\u010dte aspo\u0148 0,3 m3 vzduchu na meter \u0161tvorcov\u00fd podlahovej plochy za min\u00fatu alebo aspo\u0148 6-kr\u00e1t lh v\u00fdmenu vzduchu.<\/p>\n\n\n\n

2 Ak sa pou\u017e\u00edva mechanick\u00e1 ventil\u00e1cia, \u00fa\u010dinok zlyhania mechanickej ventil\u00e1cie mo\u017eno vyl\u00fa\u010di\u0165 v nasleduj\u00facich pr\u00edpadoch.<\/p>\n\n\n\n

1) uzavret\u00e9 alebo \u010diasto\u010dne uzavret\u00e9 budovy s\u00fa vybaven\u00e9 pohotovostn\u00fdm nez\u00e1visl\u00fdm ventila\u010dn\u00fdm syst\u00e9mom a<\/p>\n\n\n\n

2) V pr\u00edpade poruchy vetracieho zariadenia sa zabezpe\u010dia prevent\u00edvne opatrenia na zabr\u00e1nenie \u00faniku hor\u013eav\u00fdch l\u00e1tok, ako s\u00fa automatick\u00e9 alarmy alebo zastavenie procesu, alebo prevent\u00edvne opatrenia na odpojenie zariadenia.<\/p>","protected":false},"excerpt":{"rendered":"

1 gas boiler room explosion-proof design Oil, gas boiler room boiler room gas regulator room, fuel pump room, pulverized coal preparation room, coal crusher room and coal transport corridor with explosion hazardous areas such as the classification, should be consistent with the current Chinese and European Union standards, \u201cExplosion Hazardous Environment Electrical Installation Design Code\u201d 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