{"id":236,"date":"2026-07-10T05:31:44","date_gmt":"2026-07-10T05:31:44","guid":{"rendered":"https:\/\/industrialelectricmotor.net\/?p=236"},"modified":"2026-07-10T05:31:44","modified_gmt":"2026-07-10T05:31:44","slug":"electric-motor-for-cooling-tower-fan-drives","status":"publish","type":"post","link":"https:\/\/industrialelectricmotor.net\/sk\/electric-motor-for-cooling-tower-fan-drives\/","title":{"rendered":"Elektromotor pre pohon ventil\u00e1torov chladiacich ve\u017e\u00ed"},"content":{"rendered":"
\n

<\/p>\n

\n
<\/div>\n
<\/div>\n
<\/div>\n
\n
\n
<\/div>\n

Korea Ever-Power \u00b7 S\u00e9ria Y2 \u00b7 Sprievodca pohonom ventil\u00e1tora chladiacej ve\u017ee<\/span><\/p>\n

<\/div>\n<\/div>\n

Elektromotor pre pohon ventil\u00e1torov chladiacich ve\u017e\u00ed:
\nIP55, v\u00fdber odoln\u00fd vo\u010di vysokej vlhkosti a kor\u00f3zii<\/span><\/h1>\n

Motory ventil\u00e1torov chladiacich ve\u017e\u00ed pracuj\u00fa v najn\u00e1ro\u010dnej\u0161om dlhodobom kor\u00f3znom prostred\u00ed zo v\u0161etk\u00fdch priemyseln\u00fdch aplik\u00e1ci\u00ed s motormi: nepretr\u017eit\u00e9 vystavenie tepl\u00e9mu vlhk\u00e9mu vzduchu nas\u00fdten\u00e9mu kvap\u00f4\u010dkami vody, miner\u00e1lne usadeniny z odparuj\u00facej sa vody, biologick\u00e9 zne\u010distenie sp\u00f4soben\u00e9 bakt\u00e9riou Legionella a chemik\u00e1liami na \u010distenie rias a mechanick\u00e9 nam\u00e1hanie z nepretr\u017eitej prev\u00e1dzky pomalobe\u017en\u00e9ho ventil\u00e1tora s ve\u013ek\u00fdm priemerom po\u010das 8 000 alebo viac hod\u00edn ro\u010dne. \u0160tandardn\u00e9 priemyseln\u00e9 motory v tomto prostred\u00ed koroduj\u00fa a zlyh\u00e1vaj\u00fa do 2 a\u017e 3 rokov. T\u00e1to pr\u00edru\u010dka pokr\u00fdva spr\u00e1vnu \u0161pecifik\u00e1ciu motora pre pohony ventil\u00e1torov chladiacich ve\u017e\u00ed s pou\u017eit\u00edm radu Korea Ever-Power Y2 s vhodnou ochranou IP55 a \u00fapravou proti kor\u00f3zii.<\/p>\n

IP55 Vonkaj\u0161ie<\/span>
\n6-p\u00f3lov\u00fd n\u00edzkor\u00fdchlostn\u00fd<\/span>
\nVinutie triedy F<\/span>
\nS1 Nepretr\u017eit\u00e1 prev\u00e1dzka<\/span>
\n0,75 \u2013 45 kW<\/span><\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\n
6-p\u00f3lov\u00fd<\/div>\n
960 ot.\/min. pre priamy pohon ventil\u00e1tora<\/div>\n<\/div>\n
\n
IP55<\/div>\n
Vonkaj\u0161ie vlhk\u00e9 prostredie<\/div>\n<\/div>\n
\n
100%<\/div>\n
Relat\u00edvna vlhkos\u0165 na vstupe<\/div>\n<\/div>\n
\n
S1<\/div>\n
Nepretr\u017eite 8 000 hod\u00edn ro\u010dne<\/div>\n<\/div>\n
\n
0,75 \u2013 45 kW<\/div>\n
\u0160tandardn\u00fd rad ve\u017eov\u00fdch ventil\u00e1torov<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\"Trojf\u00e1zov\u00fd<\/p>\n
Motory ventil\u00e1torov chladiacich ve\u017e\u00ed musia nepretr\u017eite pracova\u0165 v nas\u00fdtenom vlhkom vzduchu s kvap\u00f4\u010dkami vody, rozpra\u0161ovanou vodou s obsahom miner\u00e1lov a chemik\u00e1liami na biologick\u00e9 \u010distenie. \u0160es\u0165p\u00f3lov\u00fd rad Korea Ever-Power Y2 s kryt\u00edm IP55, izol\u00e1ciou triedy F a epoxidovou \u00fapravou vinutia odolnou vo\u010di kor\u00f3zii poskytuje spr\u00e1vnu rovnov\u00e1hu medzi ochranou, \u00fa\u010dinnos\u0165ou a spo\u013eahlivos\u0165ou pre nepretr\u017eit\u00fa prev\u00e1dzku ventil\u00e1torov chladiacich ve\u017e\u00ed.<\/div>\n<\/div>\n

<\/p>\n

\n
Obsah<\/div>\n
1. Prostredie motora chladiacej ve\u017ee<\/a>
\n2. V\u00fdber p\u00f3lu pre r\u00fdchlos\u0165 ventil\u00e1tora<\/a>
\n3. Krytie IP55 a ochrana proti kor\u00f3zii<\/a>
\n4. V\u00fdpo\u010det v\u00fdkonu ventil\u00e1tora<\/a>
\n5. Met\u00f3da \u0161tartovania a dvojr\u00fdchlostn\u00e9 ovl\u00e1danie<\/a>
\n6. S\u00e9ria Y2 pre chladiacu ve\u017eu<\/a>
\n7. Aplik\u00e1cie chladiacich ve\u017e\u00ed<\/a>
\n8. \u010casto kladen\u00e9 ot\u00e1zky<\/a><\/div>\n<\/div>\n

<\/p>\n

\n

1. Prostredie motora chladiacej ve\u017ee<\/h2>\n

Motory ventil\u00e1torov chladiacich ve\u017e\u00ed pracuj\u00fa v kombin\u00e1cii podmienok prostredia, ktor\u00e9 ur\u00fdch\u013euj\u00fa degrad\u00e1ciu motora r\u00fdchlej\u0161ie ako takmer v akejko\u013evek inej priemyselnej aplik\u00e1cii. Pochopenie ka\u017edej podmienky je d\u00f4le\u017eit\u00e9 pre spr\u00e1vnu \u0161pecifik\u00e1ciu motora.<\/p>\n

\n
\n
100% Relat\u00edvna vlhkos\u0165<\/div>\n

Vzduch prech\u00e1dzaj\u00faci chladiacou ve\u017eou je na vstupe ventil\u00e1tora nas\u00fdten\u00fd (100% RH). Ak\u00fdko\u013evek povrch motora pod rosn\u00fdm bodom nas\u00fdten\u00e9ho vzduchu bude neust\u00e1le hromadi\u0165 kondenz\u00e1ciu. T\u00e1to kondenz\u00e1cia sa dost\u00e1va do krytov motorov s kryt\u00edm ni\u017e\u0161\u00edm ako IP65, zm\u00e1\u010da izol\u00e1ciu vinut\u00ed a sp\u00f4sobuje zn\u00ed\u017eenie izola\u010dn\u00e9ho odporu a pred\u010dasn\u00e9 zlyhanie vinutia.<\/p>\n<\/div>\n

\n
Prenos kvapiek vody<\/div>\n

Ventil\u00e1tor nas\u00e1va nielen nas\u00fdten\u00fd vzduch, ale aj mal\u00e9 kvap\u00f4\u010dky vody, ktor\u00e9 s\u00fa strh\u00e1van\u00e9 pr\u00fadom vzduchu z plniacej sekcie. Tieto kvap\u00f4\u010dky s\u00fa obohaten\u00e9 o miner\u00e1ly (uhli\u010ditan v\u00e1penat\u00fd, oxid kremi\u010dit\u00fd, rozpusten\u00e9 soli) a pri odparovan\u00ed vody sa usadzuj\u00fa na povrchoch motora, \u010d\u00edm vytv\u00e1raj\u00fa miner\u00e1lny kame\u0148, ktor\u00fd absorbuje vlhkos\u0165 a ur\u00fdch\u013euje kor\u00f3ziu.<\/p>\n<\/div>\n

\n
Bioc\u00eddne a chemick\u00e9 o\u0161etrenie<\/div>\n

Chladiaca voda sa upravuje bioc\u00eddmi (chl\u00f3r, br\u00f3m, kvart\u00e9rne am\u00f3niov\u00e9 zl\u00fa\u010deniny) na kontrolu legionely a rias. Tieto chemik\u00e1lie s\u00fa pr\u00edtomn\u00e9 v kvapk\u00e1ch, ktor\u00e9 sa dostan\u00fa do motora, a \u010dasom m\u00f4\u017eu nap\u00e1da\u0165 n\u00e1tery motora a lak vinut\u00ed. Inhib\u00edtory vodn\u00e9ho kame\u0148a a inhib\u00edtory kor\u00f3zie v chladiacej vode zvy\u0161uj\u00fa chemick\u00fa expoz\u00edciu.<\/p>\n<\/div>\n

\n
Teplotn\u00e9 cyklovanie<\/div>\n

Motory ventil\u00e1torov chladiacich ve\u017e\u00ed prech\u00e1dzaj\u00fa v\u00fdrazn\u00fdmi teplotn\u00fdmi zmenami: tepl\u00fd vlhk\u00fd vzduch po\u010das prev\u00e1dzky s pln\u00fdm za\u0165a\u017een\u00edm (teplota okolia 40 a\u017e 50 \u00b0C v bl\u00edzkosti ventil\u00e1tora), studen\u00fd vzduch v noci alebo po\u010das zimn\u00e9ho vypnutia (pod 0 \u00b0C v chladnom podneb\u00ed) a tepeln\u00fd \u0161ok sp\u00f4soben\u00fd r\u00fdchlym ochladen\u00edm motora po vypnut\u00ed. Izol\u00e1cia triedy F odol\u00e1va \u00fa\u010dinkom tepeln\u00fdch cyklov na izol\u00e1ciu vinutia, ktor\u00fdm motory s izol\u00e1ciou triedy B nemusia odol\u00e1va\u0165.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

2. V\u00fdber p\u00f3lu pre r\u00fdchlos\u0165 ventil\u00e1tora chladiacej ve\u017ee<\/h2>\n

Ventil\u00e1tory chladiacich ve\u017e\u00ed s\u00fa axi\u00e1lne ventil\u00e1tory s ve\u013ek\u00fdm priemerom (s priemerom 1,5 a\u017e 10 m), ktor\u00e9 pracuj\u00fa pri n\u00edzkych ot\u00e1\u010dkach, aby udr\u017eali n\u00edzke ot\u00e1\u010dky ventil\u00e1tora, \u010d\u00edm sa zn\u00ed\u017ei hluk a zv\u00fd\u0161i \u00fa\u010dinnos\u0165 lopatiek ventil\u00e1tora. Ot\u00e1\u010dky ventil\u00e1tora s\u00fa ur\u010den\u00e9 aerodynamick\u00fdm dizajnom ve\u017ee, ale zvy\u010dajne sa pohybuj\u00fa v rozmedz\u00ed 300 a\u017e 900 ot.\/min. pre ve\u013ek\u00e9 priemyseln\u00e9 chladiace ve\u017ee a 700 a\u017e 1 200 ot.\/min. pre balen\u00e9 chladiace ve\u017ee.<\/p>\n

\n
\n
4-p\u00f3lov\u00fd<\/div>\n
1 450 ot.\/min.<\/div>\n

Balen\u00e9 chladiace ve\u017ee s mal\u00fdmi ventil\u00e1tormi (priemer 0,5 a\u017e 1,5 m), kde kone\u010dn\u00e9 ot\u00e1\u010dky ventil\u00e1tora dosahuje prevodovka alebo reme\u0148ov\u00e1 redukcia. Pou\u017e\u00edvaj\u00fa sa aj na priamy pohon mal\u00fdch chladiacich ve\u017e\u00ed s n\u00faten\u00fdm pr\u00faden\u00edm, kde s\u00fa kon\u0161truk\u010dn\u00e9 ot\u00e1\u010dky ventil\u00e1tora 1 200 a\u017e 1 400 ot.\/min.<\/p>\n<\/div>\n

\n
6-p\u00f3lov\u00fd \u2605<\/div>\n
960 ot.\/min.<\/div>\n

\u0160tandard pre aplik\u00e1cie s priamym pohonom chladiacich ve\u017e\u00ed. 960 ot.\/min je v prev\u00e1dzkovom rozsahu v\u00e4\u010d\u0161iny lopatiek ventil\u00e1torov chladiacich ve\u017e\u00ed z FRP s ve\u013ek\u00fdm priemerom (priemer 2 a\u017e 6 m) bez potreby prevodovky. Najbe\u017enej\u0161ia \u0161pecifik\u00e1cia pre priemyseln\u00e9 a HVAC chladiace ve\u017ee.<\/p>\n<\/div>\n

\n
8-p\u00f3lov\u00fd<\/div>\n
720 ot.\/min.<\/div>\n

Ve\u013emi ve\u013ek\u00e9 chladiace ve\u017ee s priemerom ventil\u00e1tora nad 5 m, kde by r\u00fdchlos\u0165 ot\u00e1\u010dania ventil\u00e1tora pri 960 ot.\/min. prekro\u010dila kon\u0161truk\u010dn\u00e9 limity. Pou\u017e\u00edvaj\u00fa sa aj pre chladiace ve\u017ee s n\u00edzkou hlu\u010dnos\u0165ou, kde 720 ot.\/min. zni\u017euje aerodynamick\u00fd hluk v porovnan\u00ed s prev\u00e1dzkou pri 960 ot.\/min. pri rovnakom prietoku vzduchu.<\/p>\n<\/div>\n

\n
YD 4\/6-p\u00f3lov\u00fd<\/div>\n
1 450 \/ 960 ot.\/min.<\/div>\n

Dvojr\u00fdchlostn\u00fd motor s prep\u00ednan\u00edm p\u00f3lov pre chladiace ve\u017ee vy\u017eaduj\u00face dve r\u00fdchlosti ventil\u00e1tora (vysok\u00e1 r\u00fdchlos\u0165 v letnej \u0161pi\u010dke, n\u00edzka r\u00fdchlos\u0165 v miernom po\u010das\u00ed). Motor YD nahr\u00e1dza dva samostatn\u00e9 motory a eliminuje zlo\u017eitos\u0165 extern\u00fdch rel\u00e9 s prep\u00ednan\u00edm vinutia. Riadenie n\u00e1jdete v \u010dasti 5.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

3. Krytie IP55 a ochrana proti kor\u00f3zii pre prev\u00e1dzku chladiacich ve\u017e\u00ed<\/h2>\n
\n
\n
IP55 pre umiestnenie ventil\u00e1tora chladiacej ve\u017ee<\/div>\n

Motor je umiestnen\u00fd v pr\u00fade vzduchu nad plniacou sekciou, priamo vystaven\u00fd tepl\u00e9mu vzduchu nas\u00fdten\u00e9mu vodou a kvapk\u00e1m vody pren\u00e1\u0161an\u00fdm z rozpra\u0161ovac\u00edch zbera\u010dov pod n\u00edm. Minim\u00e1lnou po\u017eiadavkou na in\u0161tal\u00e1ciu motora ventil\u00e1tora chladiacej ve\u017ee je krytie IP55 (ochrana proti prachu, ochrana pred pr\u00fadmi vody z ak\u00e9hoko\u013evek smeru). IP55 zabra\u0148uje priamemu vniknutiu kvapiek vody pren\u00e1\u0161an\u00fdch pr\u00fadom vzduchu a obmedzuje r\u00fdchlos\u0165, akou vlhk\u00fd vzduch vstupuje do krytu motora d\u00fdchan\u00edm. Uk\u00e1zalo sa, \u017ee motory s kryt\u00edm IP54 alebo ni\u017e\u0161\u00edm prest\u00e1vaj\u00fa fungova\u0165 v d\u00f4sledku degrad\u00e1cie izol\u00e1cie vinutia po\u010das prev\u00e1dzky chladiacej ve\u017ee v priebehu 2 a\u017e 4 rokov, \u010do si vy\u017eaduje \u0161pecifik\u00e1ciu IP55 pre spo\u013eahliv\u00fa dlhodob\u00fa prev\u00e1dzku.<\/p>\n<\/div>\n

\n
Po\u017eiadavky na \u00fapravu odoln\u00fa vo\u010di kor\u00f3zii<\/div>\n

\u0160tandardn\u00e9 n\u00e1tery motora a r\u00e1mu s\u00fa ur\u010den\u00e9 pre such\u00e9 priemyseln\u00e9 prostredie a r\u00fdchlo sa degraduj\u00fa vo vlhkej atmosf\u00e9re chladiacej ve\u017ee za\u0165a\u017eenej miner\u00e1lmi. Doplnkov\u00fd n\u00e1ter chladiacej ve\u017ee Korea Ever-Power radu Y2 zah\u0155\u0148a: impregn\u00e1ciu vinut\u00ed na b\u00e1ze epoxidu so \u0161pecifik\u00e1ciou odolnosti vo\u010di vlhkosti; epoxidov\u00fd z\u00e1kladn\u00fd n\u00e1ter pre n\u00e1morn\u00e9 pou\u017eitie a polyuret\u00e1nov\u00fd vrchn\u00fd n\u00e1ter na v\u0161etk\u00fdch vonkaj\u0161\u00edch povrchoch; skrutky svorkovnice a upevnenia typov\u00fdch \u0161t\u00edtkov z nehrdzavej\u00facej ocele alebo \u017eiarovo pozinkovan\u00e9; a stieracie tesnenia z karbidu krem\u00edka na prechodoch hriade\u013ea. Tieto \u00fapravy odoln\u00e9 vo\u010di kor\u00f3zii predl\u017euj\u00fa typick\u00fa \u017eivotnos\u0165 motora chladiacej ve\u017ee z 2 a\u017e 4 rokov (\u0161tandardn\u00fd motor) na 8 a\u017e 15 rokov (\u0161pecifik\u00e1cia chladiacej ve\u017ee Y2).<\/p>\n<\/div>\n<\/div>\n

\n

Ohrieva\u010de priestorov: pre chladiace ve\u017ee v chladnom podneb\u00ed, kde m\u00f4\u017ee by\u0165 motor po\u010das dlh\u0161\u00edch obdob\u00ed odstavenia vystaven\u00fd teplot\u00e1m pod 5 \u00b0C, \u0161pecifikujte ohrieva\u010de priestorov namontovan\u00e9 na motore (antikondenza\u010dn\u00e9 ohrieva\u010de) vo vinut\u00ed. Tieto ohrieva\u010de s v\u00fdkonom 50 a\u017e 150 W udr\u017eiavaj\u00fa vinutie po\u010das odstavenia nad rosn\u00fdm bodom, \u010d\u00edm zabra\u0148uj\u00fa hromadeniu kondenz\u00e1cie v dutine vinutia. Ohrieva\u010de priestorov musia by\u0165 odpojen\u00e9 od nap\u00e4tia, ke\u010f je motor v chode, a zapnut\u00e9, ke\u010f je motor zastaven\u00fd \u2013 jednoduch\u00e9 blokovacie rel\u00e9 na styka\u010di motora to dosiahne automaticky.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\n

4. V\u00fdpo\u010det v\u00fdkonu motora ventil\u00e1tora chladiacej ve\u017ee<\/h2>\n
\n
Pr\u00edklad dimenzovania motora ventil\u00e1tora priemyselnej chladiacej ve\u017ee<\/div>\n
\n
\n
Dan\u00e9 (ve\u017ea na odvod tepla s 2 000 kW):<\/div>\n
Priemer ventil\u00e1tora: 4,0 m
\nOt\u00e1\u010dky ventil\u00e1tora: 6-p\u00f3lov\u00fd priamy pohon pri 960 ot.\/min
\nR\u00fdchlos\u0165 hrotu ventil\u00e1tora: \u03c0 \u00d7 4,0 \u00d7 960\/60 = 201 m\/s \u2014
\npo\u010dkajte \u2013 to prekra\u010duje limity, tak\u017ee:
\nR\u00fdchlos\u0165 ot\u00e1\u010dania ventil\u00e1tora: \u03c0 \u00d7 4,0 \u00d7 960 \u00f7 60 = 201 \u2192 kontrola:
\nv-hrot = \u03c0 \u00d7 D \u00d7 n\/60 = \u03c0 \u00d7 4,0 \u00d7 960\/60 = 201 m\/min = 33,5 m\/s
\n(v r\u00e1mci typick\u00e9ho limitu FRP ventil\u00e1tora 35\u201345 m\/s)<\/div>\n<\/div>\n
\n
Odhadovan\u00fd v\u00fdkon motora ventil\u00e1tora:<\/div>\n
N\u00e1vrhov\u00fd prietok vzduchu Q = 150 000 m\u00b3\/h = 41,7 m\u00b3\/s
\nStatick\u00fd tlak ventil\u00e1tora \u0394P = 45 Pa (typick\u00e1 ve\u017ea s n\u00edzkym odporom)
\n\u00da\u010dinnos\u0165 ventil\u00e1tora \u03b7-ventil\u00e1tor = 0,72 (axi\u00e1lne pr\u00fadenie v n\u00e1vrhovom bode)
\nV\u00fdkon na hriadeli = Q \u00d7 \u0394P \u00f7 \u03b7-ventil\u00e1tor = 41,7 \u00d7 45 \u00f7 0,72 = 2 605 W
\n\u00da\u010dinnos\u0165 motora IE3 6-p\u00f3lov\u00fd \u2248 0,90
\nVstupn\u00fd v\u00fdkon motora = 2 605 \u00f7 0,90 = 2,9 kW
\nS faktorom slu\u017eieb 1,2: Vyberte Y2 4,0 kW, 6-p\u00f3lov\u00fd, IP55<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n

Pozn\u00e1mka: Skuto\u010dn\u00fd v\u00fdkon motora ventil\u00e1tora chladiacej ve\u017ee by sa mal overi\u0165 na z\u00e1klade \u00fadajov o v\u00fdkone ventil\u00e1tora od v\u00fdrobcu ve\u017ee, ktor\u00e9 zoh\u013ead\u0148uj\u00fa \u0161pecifick\u00fa kon\u0161trukciu lopatiek ventil\u00e1tora, uhol sklonu a odpor pr\u00fadenia vzduchu vo ve\u017ei. Vy\u0161\u0161ie uveden\u00fd jednoduch\u00fd v\u00fdpo\u010det poskytuje r\u00e1dov\u00fd odhad pre po\u010diato\u010dn\u00fd v\u00fdber motora. Na zoh\u013eadnenie zmien v\u00fdkonu ventil\u00e1tora v z\u00e1vislosti od sez\u00f3ny a zmien pracovn\u00e9ho cyklu pou\u017eite servisn\u00fd faktor 1,15 a\u017e 1,25.<\/p>\n<\/div>\n

<\/p>\n

\n

5. Sp\u00f4sob \u0161tartovania a dvojr\u00fdchlostn\u00e9 ovl\u00e1danie ventil\u00e1tora<\/h2>\n
\n
\n
Spustenie DOL pre mal\u00e9 ve\u017eov\u00e9 ventil\u00e1tory<\/div>\n

Motory ventil\u00e1torov chladiacich ve\u017e\u00ed s v\u00fdkonom pod 11 kW je mo\u017en\u00e9 sp\u00fa\u0161\u0165a\u0165 priamo (DOL). Zotrva\u010dnos\u0165 pri rozbehu ventil\u00e1tora je vysok\u00e1 (lopatky ventil\u00e1tora s ve\u013ek\u00fdm priemerom maj\u00fa zna\u010dn\u00fa rota\u010dn\u00fa zotrva\u010dnos\u0165), ale po\u017eiadavka na rozbehov\u00fd kr\u00fatiaci moment je n\u00edzka, preto\u017ee sklon lopatiek ventil\u00e1tora je n\u00edzky a odpor pr\u00fadenia vzduchu v pokoji je minim\u00e1lny. Typick\u00fd je rozbehov\u00fd pr\u00fad 6 a\u017e 7-n\u00e1sobok menovit\u00e9ho pr\u00fadu po dobu 3 a\u017e 6 sek\u00fand, k\u00fdm ventil\u00e1tor dosiahne menovit\u00e9 ot\u00e1\u010dky. Priamy \u0161tart je najjednoduch\u0161\u00ed pr\u00edstup pre mal\u00e9 ventil\u00e1tory chladiacich ve\u017e\u00ed s jednou r\u00fdchlos\u0165ou.<\/p>\n<\/div>\n

\n
Hviezda-trojuholn\u00edk alebo m\u00e4kk\u00fd \u0161tart pre ve\u013ek\u00e9 ventil\u00e1tory<\/div>\n

Motory ventil\u00e1torov chladiacich ve\u017e\u00ed s v\u00fdkonom nad 11 kW by mali pou\u017e\u00edva\u0165 \u0161tartovanie hviezda-trojuholn\u00edk alebo soft\u0161tart\u00e9r, aby sa zn\u00ed\u017eil vplyv \u0161tartovacieho pr\u00fadu na nap\u00e1janie. Vysok\u00e1 zotrva\u010dnos\u0165 ventil\u00e1tora znamen\u00e1, \u017ee motor pri zapojen\u00ed hviezda-trojuholn\u00edk zr\u00fdch\u013euje pomaly a \u010das v zapojen\u00ed hviezda je dlh\u00fd \u2013 typicky 8 a\u017e 15 sek\u00fand pre 6-p\u00f3lov\u00fd motor poh\u00e1\u0148aj\u00faci ventil\u00e1tor s priemerom 4 a\u017e 6 m. Prechod z hviezdy do trojuholn\u00edka mus\u00ed by\u0165 plynul\u00fd; pre ve\u013ek\u00e9 ventil\u00e1tory sa uprednost\u0148uje prechod s asistenciou odporu, aby sa predi\u0161lo pr\u00fadov\u00e9mu n\u00e1poru v momente zapojenia trojuholn\u00edk.<\/p>\n<\/div>\n

\n
Dvojr\u00fdchlostn\u00fd motor YD pre sez\u00f3nne ovl\u00e1danie<\/div>\n

Pou\u017eitie viacr\u00fdchlostn\u00e9ho motora YD s prep\u00ednan\u00edm p\u00f3lov (4\/6-p\u00f3lov\u00fd s 1 450\/960 ot.\/min.) na ventil\u00e1tore chladiacej ve\u017ee poskytuje dve pevn\u00e9 r\u00fdchlosti ventil\u00e1tora bez frekven\u010dn\u00e9ho meni\u010da. Po\u010das letnej \u0161pi\u010dky chladenia be\u017e\u00ed ventil\u00e1tor vysokou r\u00fdchlos\u0165ou (1 450 ot.\/min., maxim\u00e1lny prietok vzduchu a chladiaci v\u00fdkon). Za mierneho po\u010dasia prepnutie na n\u00edzku r\u00fdchlos\u0165 (960 ot.\/min.) zni\u017euje v\u00fdkon ventil\u00e1tora pribli\u017ene o 701 TP3T (kocka pomeru ot\u00e1\u010dok: (960\/1 450)\u00b3 = 0,29) a z\u00e1rove\u0148 zachov\u00e1va dostato\u010dn\u00e9 chladenie. Dvojr\u00fdchlostn\u00e1 regul\u00e1cia je najn\u00e1kladovo najefekt\u00edvnej\u0161ia met\u00f3da regul\u00e1cie v\u00fdkonu pre chladiace ve\u017ee, ktor\u00e9 nevy\u017eaduj\u00fa plynul\u00e9 modulovanie.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

6. S\u00e9ria K\u00f3rejsk\u00fdch Ever-Power Y2 pre pohony ventil\u00e1torov chladiacich ve\u017e\u00ed<\/h2>\n
\n
\n

S\u00e9ria Korea Ever-Power Y2 v 6-p\u00f3lov\u00fdch a 8-p\u00f3lov\u00fdch konfigur\u00e1ci\u00e1ch pokr\u00fdva v\u00fdkonov\u00fd rozsah 0,75 a\u017e 45 kW potrebn\u00fd pre motory ventil\u00e1torov chladiacich ve\u017e\u00ed s priamym pohonom. 6-p\u00f3lov\u00fd Y2 s 960 ot.\/min je \u0161tandardnou \u0161pecifik\u00e1ciou pre v\u00e4\u010d\u0161inu priemyseln\u00fdch a komer\u010dn\u00fdch aplik\u00e1ci\u00ed ventil\u00e1torov chladiacich ve\u017e\u00ed. Spolo\u010dnos\u0165 Korea Ever-Power dod\u00e1va Y2 pre chladiace ve\u017ee so zv\u00fd\u0161enou impregn\u00e1ciou vinut\u00ed odolnou vo\u010di vlhkosti, vonkaj\u0161\u00edm n\u00e1terom odoln\u00fdm vo\u010di kor\u00f3zii a upevnen\u00edm svorkovnice z nehrdzavej\u00facej ocele ako \u0161pecifik\u00e1ciu bal\u00edka chladiacich ve\u017e\u00ed. Kompletn\u00fd rad Y2 je uveden\u00fd v sekcia produktov trojf\u00e1zov\u00fdch motorov<\/a>Kontakt K\u00f3rea Ever-Power<\/a> pre \u0161pecifik\u00e1cie bal\u00edka chladiacej ve\u017ee vr\u00e1tane ohrieva\u010da priestoru, ovl\u00e1dacieho rel\u00e9 ohrieva\u010da priestoru a mo\u017enost\u00ed \u00fapravy vinutia proti kondenz\u00e1cii.<\/p>\n<\/div>\n

\n
\n
Y2 \u2014 \u0160pecifik\u00e1cia ventil\u00e1tora chladiacej ve\u017ee<\/div>\n\n\n\n\n\n\n\n\n\n\n
Poliaci<\/td>\n6P (960 ot.\/min.) \u0161tandard<\/td>\n<\/tr>\n
Rozsah v\u00fdkonu<\/td>\n0,75 \u2013 45 kW<\/td>\n<\/tr>\n
Krytie IP<\/td>\n\u0160tandard IP55<\/td>\n<\/tr>\n
Izol\u00e1cia<\/td>\nTrieda F, odoln\u00e1 vo\u010di vlhkosti<\/td>\n<\/tr>\n
Efekt\u00edvnos\u0165<\/td>\nIE3 (energetick\u00e1 trieda)<\/td>\n<\/tr>\n
Povinnos\u0165<\/td>\nS1 kontinu\u00e1lny<\/td>\n<\/tr>\n
Ohrieva\u010d priestoru<\/td>\nVolite\u013en\u00e9 (100 W pre CT)<\/td>\n<\/tr>\n
Dvojr\u00fdchlostn\u00e1 mo\u017enos\u0165<\/td>\nK dispoz\u00edcii je YD 4\/6-p\u00f3lov\u00fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

7. Aplik\u00e1cie pohonu ventil\u00e1torov chladiacich ve\u017e\u00ed<\/h2>\n
\n
\n
Priemyseln\u00e1 chladiaca ve\u017ea<\/div>\n

Protipr\u00fadov\u00e9 a prie\u010dne pr\u00fadov\u00e9 chladiace ve\u017ee na priemyseln\u00e9 procesn\u00e9 chladenie (chemick\u00fd, petrochemick\u00fd, elektr\u00e1rensk\u00fd, v\u00fdrobn\u00fd). Ventil\u00e1torov\u00e9 motory 7,5 a\u017e 45 kW, 6-p\u00f3lov\u00e9, IP55, trieda F. Typick\u00e9 konfigur\u00e1cie ve\u017eov\u00fdch \u010dl\u00e1nkov pou\u017e\u00edvaj\u00fa 2 a\u017e 8 ventil\u00e1torov\u00fdch \u010dl\u00e1nkov, ka\u017ed\u00fd s jedn\u00fdm motorom. 6-p\u00f3lov\u00fd priamy pohon Y2 je \u0161tandardnou \u0161pecifik\u00e1ciou pre \u010dl\u00e1nky s priemerom ventil\u00e1tora 2 a\u017e 5 m.<\/p>\n<\/div>\n

\n
Chladiaca ve\u017ea budovy HVAC<\/div>\n

Balen\u00e9 a na mieste montovan\u00e9 chladiace ve\u017ee na chladenie kondenz\u00e1torov klimatiz\u00e1ci\u00ed. Motory ventil\u00e1torov 0,75 a\u017e 15 kW, 6-p\u00f3lov\u00e9 alebo 4-p\u00f3lov\u00e9 s prevodovkou pre mal\u00e9 ve\u017ee. Dvojr\u00fdchlostn\u00fd motor YD, ob\u013e\u00faben\u00fd pre chladiace ve\u017ee kancel\u00e1rskych budov, kde prev\u00e1dzka s \u010diasto\u010dn\u00fdm za\u0165a\u017een\u00edm tvor\u00ed v\u00e4\u010d\u0161inu ro\u010dn\u00fdch hod\u00edn.<\/p>\n<\/div>\n

\n
Chladenie d\u00e1tov\u00e9ho centra<\/div>\n

Chladiace ve\u017ee pre kondenza\u010dn\u00e9 chladiace zariadenia d\u00e1tov\u00fdch centier. Ve\u013emi vysok\u00fd ro\u010dn\u00fd prev\u00e1dzkov\u00fd v\u00fdkon (8 760 hod\u00edn\/rok nepretr\u017eite). Y2 6-p\u00f3lov\u00fd 3,0 a\u017e 22 kW, IP55, s ohrieva\u010dom priestoru pre obdobia odst\u00e1vky ve\u017ee. Dlh\u00e1 \u017eivotnos\u0165 je nevyhnutn\u00e1 vzh\u013eadom na k\u013e\u00fa\u010dov\u00fa \u00falohu chladenia v kontinuite prev\u00e1dzky d\u00e1tov\u00e9ho centra.<\/p>\n<\/div>\n

\n
Ventil\u00e1tor odparovacieho kondenz\u00e1tora<\/div>\n

Odparovacie kondenz\u00e1tory pre chladiace syst\u00e9my (chladiarne, spracovanie potrav\u00edn, priemyseln\u00e9 chladenie) pou\u017e\u00edvaj\u00fa kombinovan\u00fd mechanizmus priameho chladenia vzduchom a odparovania. Po\u017eiadavky na motor s\u00fa rovnak\u00e9 ako u motorov ventil\u00e1torov chladiacich ve\u017e\u00ed \u2013 IP55, 6-p\u00f3lov\u00fd, vinutie odoln\u00e9 vo\u010di vlhkosti, exteri\u00e9r odoln\u00fd vo\u010di kor\u00f3zii. Y2 0,75 a\u017e 7,5 kW pokr\u00fdva v\u00e4\u010d\u0161inu aplik\u00e1ci\u00ed odparovac\u00edch kondenza\u010dn\u00fdch ventil\u00e1torov.<\/p>\n<\/div>\n<\/div>\n

\n
\n

\"Ventil\u00e1tor<\/p>\n

Ventil\u00e1tor chladiacej ve\u017ee<\/div>\n<\/div>\n
\n

\"Test<\/p>\n

Sk\u00fa\u0161ka vodn\u00fdm l\u00fa\u010dom IP55<\/div>\n<\/div>\n
\n

\"Chladiaci<\/p>\n

CE a ISO<\/div>\n<\/div>\n
\n

\"Z\u00e1kazn\u00edci<\/p>\n

Glob\u00e1lni z\u00e1kazn\u00edci<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

8. \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\n
\n
Motor ventil\u00e1tora na\u0161ej chladiacej ve\u017ee zlyhal po 18 mesiacoch. Ako m\u00f4\u017eeme pred\u013a\u017ei\u0165 \u017eivotnos\u0165 motora?<\/div>\n<\/div>\n
\n

18-mesa\u010dn\u00e1 \u017eivotnos\u0165 motora v chladiacej ve\u017ei je charakteristick\u00e1 pre motor bez dostato\u010dnej odolnosti vinutia vo\u010di vlhkosti alebo dostato\u010dnej ochrany proti kor\u00f3zii vonkaj\u0161\u00edch komponentov. Na pred\u013a\u017eenie \u017eivotnosti na rozsah 8 a\u017e 15 rokov, typick\u00fd pre spr\u00e1vne \u0161pecifikovan\u00e9 motory chladiacich ve\u017e\u00ed: (1) \u0160pecifikujte minim\u00e1lne krytie IP55 \u2013 IP54 nie je posta\u010duj\u00face pre prostredie s kvapkami vody v mieste ventil\u00e1tora. (2) \u0160pecifikujte impregn\u00e1ciu vinutia odoln\u00fa vo\u010di vlhkosti \u2013 balenie chladiacej ve\u017ee Korea Ever-Power Y2 obsahuje dodato\u010dn\u00fd epoxidov\u00fd n\u00e1ter vinutia na \u0161tandardn\u00fd polyesterov\u00fd lak. (3) Pridajte antikondenza\u010dn\u00e9 ohrieva\u010de priestoru (100 W) s automatick\u00fdm ovl\u00e1dan\u00edm, ktor\u00e9 sa zapn\u00fa pri zastaven\u00ed motora \u2013 t\u00fdm sa zabr\u00e1ni hromadeniu vlhkosti v dutine vinutia po\u010das mimo prev\u00e1dzky ve\u017ee. (4) Skontrolujte a znovu dotiahnite upevnenia veka svorkovnice a priechodky pri prvom a tre\u0165om intervale \u00fadr\u017eby \u2013 vibr\u00e1cie kon\u0161trukcie chladiacej ve\u017ee ich m\u00f4\u017eu \u010dasom uvo\u013eni\u0165, \u010do umo\u017en\u00ed vlhk\u00e9mu vzduchu vnikn\u00fa\u0165 do svorkovnice a prech\u00e1dza\u0165 cez k\u00e1blov\u00e9 zakon\u010denia. (5) Naneste opravn\u00fa farbu na v\u0161etky miesta, kde koroz\u00edvne prostredie chladiacej ve\u017ee napadlo vonkaj\u0161\u00ed povrch motora po prvom roku prev\u00e1dzky.<\/p>\n<\/div>\n<\/div>\n

\n
\n
M\u00f4\u017eem pou\u017ei\u0165 frekven\u010dn\u00fd meni\u010d (VFD) na motore ventil\u00e1tora chladiacej ve\u017ee na plynul\u00e9 modulovanie chladiaceho v\u00fdkonu?<\/div>\n<\/div>\n
\n

\u00c1no \u2013 a pre chladiace ve\u017ee s vysok\u00fdm ro\u010dn\u00fdm po\u010dtom prev\u00e1dzkov\u00fdch hod\u00edn a v\u00fdrazn\u00fdmi zmenami za\u0165a\u017eenia je frekven\u010dn\u00fd meni\u010d (VFD) na motore ventil\u00e1tora chladiacej ve\u017ee jednou z invest\u00edci\u00ed s najvy\u0161\u0161ou n\u00e1vratnos\u0165ou energie. Plat\u00ed kubick\u00fd z\u00e1kon \u00faspor: zn\u00ed\u017eenie ot\u00e1\u010dok ventil\u00e1tora o 20% u\u0161etr\u00ed 49% v\u00fdkonu ventil\u00e1tora. Pre motor Y2 na pohone VFD chladiacej ve\u017ee \u0161pecifikujte invertorov\u00fd motor YVF2 s n\u00faten\u00fdm chladen\u00edm IC416, preto\u017ee ventil\u00e1tor Y2 s hriadeln\u00fdm ventil\u00e1torom IC411 str\u00e1ca prietok chladiaceho vzduchu \u00famerne kubickej r\u00fdchlosti \u2013 pri ot\u00e1\u010dkach ventil\u00e1tora 50% klesne chladenie IC411 na 12,5%, pri\u010dom motor st\u00e1le zvl\u00e1da rovnak\u00fd kr\u00fatiaci moment. YVF2 s IC416 udr\u017eiava pln\u00e9 chladenie pri akejko\u013evek r\u00fdchlosti. Taktie\u017e sa uistite, \u017ee samotn\u00fd VFD je umiestnen\u00fd v utesnenom kryte (IP54 alebo lep\u0161\u00ed) mimo z\u00f3ny vlhk\u00e9ho vzduchu chladiacej ve\u017ee \u2013 VFD nain\u0161talovan\u00fd vo vn\u00fatri kon\u0161trukcie chladiacej ve\u017ee v dr\u00e1he vzduchu bude po\u0161koden\u00fd vniknut\u00edm vlhkosti v priebehu nieko\u013ek\u00fdch t\u00fd\u017ed\u0148ov bez oh\u013eadu na jeho krytie IP.<\/p>\n<\/div>\n<\/div>\n

\n
\n
Ke\u010f je ve\u017ea v zime vypnut\u00e1, motor ventil\u00e1tora be\u017e\u00ed v opa\u010dnom smere. Je to \u0161kodliv\u00e9?<\/div>\n<\/div>\n
\n

V niektor\u00fdch chladiacich ve\u017eiach doch\u00e1dza k prirodzen\u00e9mu konvek\u010dn\u00e9mu sp\u00e4tn\u00e9mu pr\u00fadeniu vzduchu cez ve\u017eu, ke\u010f je ventil\u00e1tor zastaven\u00fd \u2013 tepl\u00fd vzduch z n\u00e1dr\u017ee prirodzene st\u00fapa a vytv\u00e1ra smerom nahor, ktor\u00fd rozt\u00e1\u010da lopatky ventil\u00e1tora v opa\u010dnom smere. Toto sp\u00e4tn\u00e9 rota\u010dn\u00e9 ...<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
<\/div>\n

 <\/p>\n

\n
Korea Ever-Power \u00b7 S\u00e9ria Y2 \u00b7 6-p\u00f3lov\u00fd ventil\u00e1tor chladiacej ve\u017ee<\/div>\n

Potrebujete motor s dlhou \u017eivotnos\u0165ou pre va\u0161u chladiacu ve\u017eu?<\/h2>\n

Korea Ever-Power Y2 6-p\u00f3lov\u00fd: IE3, IP55, trieda F odoln\u00e1 vo\u010di vlhkosti, 0,75 \u2013 45 kW. Chladiaca ve\u017ea odoln\u00e1 vo\u010di kor\u00f3zii s mo\u017enos\u0165ou ohrieva\u010da priestoru a epoxidovou \u00fapravou vinutia.<\/p>\n

Zobrazi\u0165 sortiment motorov Y2<\/a><\/p>\n<\/div>\n<\/div>\n

Upravil Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 Y2 Series \u00b7 Cooling Tower Fan Drive Guide Electric Motor for Cooling Tower Fan Drives: IP55, High Humidity and Corrosion-Resistant Selection Cooling tower fan motors operate in the most severe long-term corrosion environment of any industrial motor application: continuous exposure to warm humid air saturated with water droplets, mineral deposits from evaporating […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-236","post","type-post","status-publish","format-standard","hentry","category-industrial-electric-motor"],"_links":{"self":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/comments?post=236"}],"version-history":[{"count":1,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/236\/revisions"}],"predecessor-version":[{"id":239,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/236\/revisions\/239"}],"wp:attachment":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/media?parent=236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/categories?post=236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/tags?post=236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}