{"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":"cerinte-privind-protectia-impotriva-exploziilor-electrice-si-ventilatia-pentru-camerele-cazanelor-de-gaz","status":"publish","type":"post","link":"https:\/\/led.amasly.com\/ro\/echipamente-antideflagrante\/cerinte-privind-protectia-impotriva-exploziilor-electrice-si-ventilatia-pentru-camerele-cazanelor-de-gaz\/","title":{"rendered":"Cerin\u021be privind protec\u021bia \u00eempotriva exploziilor electrice \u0219i ventila\u021bia pentru camerele cazanelor de gaz"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>1 cazan de gaz cu design antideflagrant<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Petrolul, cazanul de gaz camera cazanului camera regulatorului de gaz, camera pompei de combustibil, camera de preparare a c\u0103rbunelui pulverizat, camera concasorului de c\u0103rbune \u0219i coridorul de transport al c\u0103rbunelui cu zone cu pericol de explozie, cum ar fi clasificarea, ar trebui s\u0103 fie \u00een concordan\u021b\u0103 cu standardele chineze \u0219i ale Uniunii Europene actuale, \u201cCodul de proiectare a instala\u021biilor electrice pentru medii cu pericol de explozie\u201d GB50058 din dispozi\u021biile relevante; camera cazanului de gaz camera regulatorului de gaz apar\u021bine zonelor cu pericol de explozie.<\/p>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-c956399c wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><a class=\"\" href=\"https:\/\/led.amasly.com\/ro\/\" target=\"\" rel=\"noopener\"><img decoding=\"async\" srcset=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/994a24f7548f0a2e440d27327b211829-1024x695.png ,https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/994a24f7548f0a2e440d27327b211829.png 780w, https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/994a24f7548f0a2e440d27327b211829.png 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/994a24f7548f0a2e440d27327b211829-1024x695.png\" alt=\"\" class=\"uag-image-2032\" width=\"1080\" height=\"733\" title=\"994a24f7548f0a2e440d27327b211829\" loading=\"lazy\" role=\"img\"><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cIndicatorul de evacuare de urgen\u021b\u0103 pentru ie\u0219irea de siguran\u021b\u0103 a camerei cazanului de gaz\u201d aproape de zona cu pericol de explozie deasupra sau deasupra exploziei trebuie proiectat pentru tipul rezistent la explozie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dac\u0103 \u00eendeplinesc una dintre urm\u0103toarele condi\u021bii, pot fi clasificate ca zone f\u0103r\u0103 pericol de explozie: 1, nu exist\u0103 nicio surs\u0103 de eliberare \u0219i nu exist\u0103 nicio probabilitate de infiltrare a substan\u021belor combustibile \u00een zon\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. Concentra\u021bia maxim\u0103 de substan\u021be combustibile care poate ap\u0103rea nu dep\u0103\u0219e\u0219te 10 % din valoarea limit\u0103 inferioar\u0103 a explozivit\u0103\u021bii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3, \u00een procesul de produc\u021bie, folosind fl\u0103c\u0103ri deschise \u00een apropierea echipamentului, sau p\u0103r\u021bile fierbin\u021bi ale temperaturii suprafe\u021bei dep\u0103\u0219esc temperatura de aprindere a substan\u021belor combustibile din zona din apropierea echipamentului;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4. \u00cen afara zonei unit\u0103\u021bii de produc\u021bie, \u00een aer liber sau \u00een mod deschis, amenajat pentru transportul substan\u021belor combustibile \u00een zona conductei aeriene, dar supapa sa este stabilit\u0103 de la caz la caz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pe baza a 3 elemente: camera cazanului de gaz poate fi \u00eemp\u0103r\u021bit\u0103 \u00een zon\u0103 periculoas\u0103 f\u0103r\u0103 explozie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scurgerile de gaz sunt posibile, atunci c\u00e2nd concentra\u021bia dep\u0103\u0219e\u0219te 10% din limita inferioar\u0103 a limitei explozive, zona din apropierea acoperi\u0219ului camerei cazanului este o zon\u0103 de depozitare a gazelor naturale, corpurile de iluminat \u0219i \u00eentrerup\u0103toarele trebuie s\u0103 utilizeze tipul antiexploziv.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Concentra\u021bia de scurgere a gazelor combustibile dep\u0103\u0219e\u0219te 25% din limita inferioar\u0103 a limitei explozive, alarma de scurgere a gazelor emis\u0103 de semnalele de alarm\u0103 sonor\u0103 \u0219i vizual\u0103 \u0219i porne\u0219te ventilatorul de evacuare \u00een caz de accident, atunci c\u00e2nd concentra\u021bia de scurgere atinge 50% din limita inferioar\u0103 a limitei explozive, dar, de asemenea, \u00eenchide\u021bi imediat sursa de gaze naturale \u00een conductele de admisie a gazelor din electrovalva de admisie total\u0103, camera cazanului \u00een apropierea acoperi\u0219ului corpurilor de iluminat \u0219i a comutatoarelor, selectarea ventilatorului de evacuare \u00een caz de accident de tip antiexploziv.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Camera cazanului de gaz, \u00een plus fa\u021b\u0103 de regulatorul de gaz, apar\u021bine zonei cu pericol de explozie \u0219i \u201creglement\u0103rile privind exploziile\u201d pentru proiectarea electric\u0103 antiexploziv\u0103, camera cazanului de gaz \u0219i camera de control adiacent\u0103 \u0219i alte camere auxiliare \u0219i alte proiecte electrice ar trebui s\u0103 fie \u00een conformitate cu proiectarea mediului din zona periculoas\u0103 neexploziv\u0103.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2 camera cazanului pe gaz m\u0103suri de siguran\u021b\u0103 privind gazul<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Introdus \u00een camera cazanului din conducta de gaz \u00een aer liber, \u00eentr-o loca\u021bie sigur\u0103 \u0219i u\u0219or de operat ar trebui s\u0103 fie instalat cu dispozitivul de alarm\u0103 a concentra\u021biei de gaz din camera cazanului legat de supapa de \u00eenchidere de urgen\u021b\u0103, supapa ar trebui s\u0103 fie instalat\u0103 dup\u0103 manometrul de gaz.<\/p>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-5683b0c2 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" srcset=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/9537b2036b24cf8dba0f232988fcfbf7-1024x680.png ,https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/9537b2036b24cf8dba0f232988fcfbf7.png 780w, https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/9537b2036b24cf8dba0f232988fcfbf7.png 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/9537b2036b24cf8dba0f232988fcfbf7-1024x680.png\" alt=\"\" class=\"uag-image-2033\" width=\"1080\" height=\"717\" title=\"9537b2036b24cf8dba0f232988fcfbf7\" loading=\"lazy\" role=\"img\"><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Conducta de gaz trebuie s\u0103 fie echipat\u0103 cu o conduct\u0103 de evacuare, un orificiu de prelevare a probelor \u0219i un orificiu de golire \u0219i trebuie s\u0103 respecte urm\u0103toarele dispozi\u021bii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1, loca\u021bia sa ar trebui s\u0103 fie capabil\u0103 s\u0103 \u021beav\u0103 \u0219i accesorii \u00een gaz sau aer suflare;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2, conducta de dispersie poate fi combinat\u0103 \u00eentr-o conduct\u0103 principal\u0103 c\u0103tre exterior, ie\u0219irea ar trebui s\u0103 fie mai mare dec\u00e2t creasta camerei cazanului mai mult de 2 m \u0219i ar trebui s\u0103 fie eliberat\u0103 astfel \u00eenc\u00e2t gazul s\u0103 nu curg\u0103 \u00een cl\u0103dirile \u00eenvecinate \u0219i dispozitivele de ventila\u021bie s\u0103 fie aspirate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3, densitatea de dispersie a gazului dec\u00e2t aerul, ar trebui s\u0103 fie utilizate \u00een aer sau emisiile de tor\u021b\u0103 \u0219i ar trebui s\u0103 \u00eendeplineasc\u0103 frecven\u021ba minim\u0103 a cerin\u021belor de siguran\u021b\u0103 \u0219i de protec\u021bie a mediului din partea dinspre v\u00e2nt a regiunii; atunci c\u00e2nd instala\u021bia are un sistem de ventila\u021bie a tor\u021bei, este adecvat s\u0103 se descarce gazul \u00een sistem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.5 Diametrul conductei de evacuare a gazelor trebuie determinat \u00een func\u021bie de volumul sec\u021biunii de suflare \u0219i de timpul de suflare; volumul de suflare poate fi calculat \u00een func\u021bie de sec\u021biunea de suflare de 10 ori ~ 20 de ori volumul timpului de suflare poate fi utilizat pentru 15min ~ 20min; gazul de suflare poate fi azot sau alte gaze inerte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.6 Conductele de gaz din camera cazanelor nu trebuie s\u0103 traverseze depozitele inflamabile sau explozive, camerele de serviciu, camerele de distribu\u021bie \u0219i de substa\u021bii, conductele de cabluri (pu\u021buri), pu\u021burile lifturilor, \u0219an\u021burile de ventila\u021bie, conductele, co\u0219urile de fum \u0219i propriet\u0103\u021bile corozive ale amplasamentului.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.7 Fiecare tronson de gaz al cazanului ar trebui s\u0103 fie sus\u021binut de o performan\u021b\u0103 fiabil\u0103 a grupului de supape de gaz, grupul de supape \u00eenainte de presiunea de alimentare cu gaz \u0219i specifica\u021biile grupului de supape ar trebui s\u0103 \u00eendeplineasc\u0103 cerin\u021bele de sarcin\u0103 maxim\u0103 ale arz\u0103torului; compozi\u021bia de baz\u0103 \u0219i secven\u021ba grupului de supape ar trebui s\u0103 fie supapa de t\u0103iere, manometrul, filtrul, supapa de reglare a presiunii, receptorul ondulat, 2 niveluri sau o combina\u021bie de electrovalve pentru detectarea scurgerilor, \u00eenainte \u0219i dup\u0103 presostatele supapei \u0219i supapele fluture de control al debitului; aprinderea conductei de gaz ar trebui s\u0103 fie utilizat\u0103 de la arz\u0103tor \u00eenainte de conducta de gaz Trunk de la arz\u0103tor \u00eenainte de gaz 2 sau combinate de detectare a scurgerilor electrovalv\u0103 solenoid \u00eenainte de plumb, \u0219i ar trebui s\u0103 fie echipate cu o supap\u0103 de \u00eenchidere \u0219i 2 electrovalv\u0103 solenoid pe nivelul s\u0103u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.8 supapa de \u00eenchidere a supapei de gaz a cazanului \u00eenainte ca presiunea de alimentare cu gaz s\u0103 fie determinat\u0103 \u00een conformitate cu cerin\u021bele arz\u0103torului \u0219i s\u0103 fie stabilit\u0103 la 5kPa ~ 20kPa \u00eentre calitatea debitului de alimentare a supapei de gaz ar trebui s\u0103 poat\u0103 face cazanul \u00een func\u021bionarea sarcinii nominale, stabilitatea arz\u0103torului de ardere.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.11 conducta de gaz care traverseaz\u0103 pe vertical\u0103 podeaua cl\u0103dirii trebuie instalat\u0103 \u00eentr-un pu\u021b de conducte independent \u0219i trebuie a\u0219ezat\u0103 \u00eempotriva peretelui exterior; prin pu\u021burile de conducte ale podelei cl\u0103dirii, la fiecare 2 sau 3 straturi trebuie instalate nu mai pu\u021bin de limita de rezisten\u021b\u0103 la foc a podelei a peretelui desp\u0103r\u021bitor antifoc; adiacent p\u0103r\u021bii inferioare a celor dou\u0103 pere\u021bi desp\u0103r\u021bitori de incendiu, trebuie instalat\u0103 o u\u0219\u0103 de incendiu clasa C; partea inferioar\u0103 a u\u0219ii de incendiu a cl\u0103dirii de la parterul pu\u021burilor de conducte trebuie prev\u0103zut\u0103 cu un clapet\u0103 de incendiu ac\u021bionat\u0103 electric; pu\u021burile de conducte trebuie instalate \u00een partea superioar\u0103 a clapetei atmosferice; pu\u021burile de conducte trebuie utilizate pentru ventila\u021bie natural\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.12 ascensoarele de gaz din pu\u021burile de conducte nu trebuie s\u0103 fie a\u0219ezate pe supap\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">13.3.13 conductele de gaz \u0219i accesoriile sunt strict interzise utilizarea pieselor din font\u0103; \u00een zona de incendiu pentru a utiliza supapa, ar trebui s\u0103 aib\u0103 propriet\u0103\u021bi rezistente la foc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3 sistem de ventila\u021bie \u00een caz de accident<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Situat \u00een alte cl\u0103diri \u00een camera de ulei, cazan de gaz camera cazanului, ar trebui s\u0103 fie \u00eenfiin\u021bat independent de alimentare cu aer \u0219i sistemul de evacuare, dispozitivul de ventila\u021bie ar trebui s\u0103 fie rezistent la explozii, ventila\u021bie trebuie s\u0103 respecte urm\u0103toarele dispozi\u021bii.<\/p>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-14ca1575 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" srcset=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/0798926bd3b7f0169460721fc538047f-1024x761.png ,https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/0798926bd3b7f0169460721fc538047f.png 780w, https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/0798926bd3b7f0169460721fc538047f.png 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/led.amasly.com\/wp-content\/uploads\/2025\/02\/0798926bd3b7f0169460721fc538047f-1024x761.png\" alt=\"\" class=\"uag-image-2034\" width=\"1080\" height=\"803\" title=\"0798926bd3b7f0169460721fc538047f\" loading=\"lazy\" role=\"img\"><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">1, utilizarea gazului ca combustibil, ventila\u021bia normal\u0103 nu trebuie s\u0103 fie mai mic\u0103 de 6 ori pe or\u0103, num\u0103rul de accidente nu trebuie s\u0103 fie mai mic de 12 ori pe or\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2, camera cazanului este instalat\u0103 \u00een demisol sau demisol, ventila\u021bia sa normal\u0103 nu trebuie s\u0103 fie mai mic\u0103 de 6 ori pe or\u0103, num\u0103rul de accidente nu trebuie s\u0103 fie mai mic de 12 ori pe or\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3, camera cazanului este amplasat\u0103 \u00een subteran sau subsol, num\u0103rul de schimb\u0103ri de aer pe or\u0103 nu trebuie s\u0103 fie mai mic de 12 ori.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4, cantitatea total\u0103 de aer proasp\u0103t trimis \u00een camera cazanului trebuie s\u0103 fie mai mare dec\u00e2t camera cazanului \u00een fiecare or\u0103 de 3 ori cantitatea de schimb de aer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5. Cantitatea de aer proasp\u0103t trimis\u0103 \u00een camera de comand\u0103 se calculeaz\u0103 \u00een func\u021bie de operatorul de tur\u0103 maxim\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">15.3.8 camera regulatorului de gaz \u0219i alte \u00eenc\u0103peri cu risc de explozie, ar trebui s\u0103 existe un schimb de aer de cel pu\u021bin 6 ori pe or\u0103; atunci c\u00e2nd ventila\u021bia natural\u0103 nu poate \u00eendeplini cerin\u021bele, ar trebui instalate dispozitive de ventila\u021bie mecanic\u0103 \u0219i ar trebui s\u0103 se instaleze un schimb de aer de cel pu\u021bin 12 ori pe or\u0103 al dispozitivului de ventila\u021bie pentru accidente; dispozitivul de ventila\u021bie ar trebui s\u0103 fie rezistent la explozii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">15.3.10 loca\u021bia prizei de aspira\u021bie a camerei de ventila\u021bie mecanic\u0103 trebuie s\u0103 fie stabilit\u0103 \u00een conformitate cu urm\u0103toarele dispozi\u021bii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1, atunci c\u00e2nd densitatea relativ\u0103 a gazului sau a uleiului este mai mic\u0103 sau egal\u0103 cu 0,75, amplasarea prizei de aspira\u021bie trebuie s\u0103 fie stabilit\u0103 \u00een zona superioar\u0103, priza de aspira\u021bie de pe marginea planului p\u00e2n\u0103 la tavan sau distan\u021ba de la acoperi\u0219 nu trebuie s\u0103 fie mai mare de 0,1 m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2 atunci c\u00e2nd densitatea relativ\u0103 a gazului sau a uleiului este mai mare de 0,75, loca\u021bia prizei de aspira\u021bie trebuie s\u0103 fie stabilit\u0103 \u00een zona inferioar\u0103, priza de aspira\u021bie sub marginea distan\u021bei p\u00e2n\u0103 la podea nu trebuie s\u0103 fie mai mare de 0,3 m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Atunci c\u00e2nd fluxul de aer de ventila\u021bie \u00een zona cu pericol de explozie poate face ca materialul combustibil s\u0103 fie diluat rapid la valoarea limit\u0103 inferioar\u0103 a exploziei de 25% sau mai pu\u021bin, poate fi desemnat ca fiind bine ventilat \u0219i trebuie s\u0103 fie \u00een conformitate cu urm\u0103toarele dispozi\u021bii.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1 urm\u0103toarele locuri pot fi desemnate ca locuri bine ventilate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1) locuri \u00een aer liber.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2) cl\u0103diri deschise, \u00een pere\u021bii cl\u0103dirii, deschideri de acoperi\u0219, dimensiunea \u0219i loca\u021bia acestora pentru a se asigura c\u0103 ventila\u021bia \u00een interiorul cl\u0103dirii este echivalent\u0103 cu efectul de spa\u021biu deschis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3) Cl\u0103diri ne-deschise cu deschideri permanente pentru ventila\u021bie natural\u0103.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4) Pentru zonele \u00eenchise, asigura\u021bi cel pu\u021bin 0,3m3 de aer pe metru p\u0103trat de suprafa\u021b\u0103 a podelei pe minut sau cel pu\u021bin lh schimb de aer de 6 ori.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2 Atunci c\u00e2nd se utilizeaz\u0103 ventila\u021bia mecanic\u0103, efectul e\u0219ecului ventila\u021biei mecanice poate fi exclus \u00een urm\u0103toarele cazuri.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1) cl\u0103dirile \u00eenchise sau semi-\u00eenchise sunt prev\u0103zute cu un sistem de ventila\u021bie independent de rezerv\u0103; \u0219i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2) \u00cen cazul unei defec\u021biuni a echipamentului de ventila\u021bie, sunt prev\u0103zute m\u0103suri de precau\u021bie care s\u0103 asigure prevenirea eliber\u0103rii de substan\u021be combustibile, cum ar fi alarme automate sau oprirea procesului, sau m\u0103suri de precau\u021bie pentru deconectarea echipamentului.<\/p>","protected":false},"excerpt":{"rendered":"<p>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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