{"id":100290,"date":"2026-02-15T20:32:05","date_gmt":"2026-02-15T20:32:05","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&p=100290"},"modified":"2026-07-17T03:17:14","modified_gmt":"2026-07-17T03:17:14","slug":"vibration-iso20816-8-compressors","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/sk\/calculators\/vibration-iso20816-8-compressors\/","title":{"rendered":"Limity vibr\u00e1ci\u00ed pre piestov\u00e9 kompresory pod\u013ea normy ISO 20816-8"},"content":{"rendered":"

Limity vibr\u00e1ci\u00ed pre piestov\u00e9 kompresory pod\u013ea normy ISO 20816-8<\/h1>\n

\u010co je norma ISO 20816-8 a pre\u010do je d\u00f4le\u017eit\u00e1 pre piestov\u00e9 kompresory?<\/h2>\n

ISO 20816-8 je medzin\u00e1rodn\u00e1 norma, ktor\u00e1 definuje krit\u00e9ri\u00e1 hodnotenia intenzity vibr\u00e1ci\u00ed \u0161pecificky pre piestov\u00e9 kompresory vr\u00e1tane typov pre procesn\u00e9 plyny, vzduch a chladenie. Stanovuje \u0161tyri vibra\u010dn\u00e9 z\u00f3ny (A, B, C, D) na z\u00e1klade nameranej r\u00fdchlosti v mm\/s RMS, \u010do pom\u00e1ha in\u017einierom ur\u010di\u0165, \u010di kompresor pracuje v r\u00e1mci prijate\u013en\u00fdch limitov alebo vy\u017eaduje n\u00e1pravn\u00e9 opatrenie.<\/p>\n

Piestov\u00e9 kompresory sa z\u00e1sadne l\u00ed\u0161ia od rota\u010dn\u00fdch strojov, ako s\u00fa odstrediv\u00e9 alebo axi\u00e1lne kompresory. Piestovo-k\u013eukov\u00fd mechanizmus a pulzuj\u00face plynov\u00e9 sily, ktor\u00e9 s\u00fa vlastn\u00e9 piestov\u00fdm kon\u0161trukci\u00e1m, sp\u00f4sobuj\u00fa po\u010das be\u017enej prev\u00e1dzky v\u00fdrazne vy\u0161\u0161ie \u00farovne vibr\u00e1ci\u00ed. Preto existuje norma ISO 20816-8 ako samostatn\u00e1 s\u00fa\u010das\u0165 rodiny noriem ISO 20816 \u2013 uplatnenie obmedzen\u00ed z noriem pre rota\u010dn\u00e9 stroje (ako je ISO 20816-3) na piestov\u00e9 kompresory by viedlo k zav\u00e1dzaj\u00facim a pr\u00edli\u0161 konzervat\u00edvnym hodnoteniam.<\/p>\n

The scope of ISO 20816-8 is specific: it applies to reciprocating compressor systems mounted on rigid foundations, with typical operating speeds from 120 r\/min to 1800 r\/min. Rotating and torsional shaft vibration, as well as the vibration of drivers (electric motors, engines) and driven auxiliary equipment, are outside its scope and must be evaluated using the other applicable standards for those machine types.<\/p>\n

Str\u00e1nka Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory<\/strong> Bezplatn\u00fd online n\u00e1stroj z tejto in\u017einierskej s\u00fapravy implementuje klasifik\u00e1ciu z\u00f3n pod\u013ea normy ISO 20816-8 v kalkula\u010dke zalo\u017eenej na prehliada\u010di. In\u017einieri m\u00f4\u017eu zada\u0165 nameran\u00fa r\u00fdchlos\u0165 vibr\u00e1ci\u00ed, vybra\u0165 typ kompresora a typ z\u00e1kladov a okam\u017eite z\u00edska\u0165 pr\u00edslu\u0161n\u00fa vibra\u010dn\u00fa z\u00f3nu spolu s prev\u00e1dzkov\u00fdmi odpor\u00fa\u010daniami \u2013 nie s\u00fa potrebn\u00e9 \u017eiadne tabu\u013eky ani manu\u00e1lne vyh\u013ead\u00e1vanie v tabu\u013ek\u00e1ch.<\/p>\n

Ak\u00e9 s\u00fa hranice vibra\u010dn\u00fdch z\u00f3n pod\u013ea normy ISO 20816-8 pre pevn\u00e9 z\u00e1klady?<\/h2>\n

Pre piestov\u00e9 kompresory namontovan\u00e9 na pevn\u00fdch bet\u00f3nov\u00fdch alebo oce\u013eov\u00fdch blokov\u00fdch z\u00e1kladoch priamo spojen\u00fdch s kon\u0161trukciou budovy definuje norma ISO 20816-8 tri hranice z\u00f3n: A\/B pri 7,1 mm\/s RMS, B\/C pri 14,0 mm\/s RMS a C\/D pri 28,0 mm\/s RMS. Z\u00f3na A predstavuje novo uveden\u00e9 do prev\u00e1dzky alebo vynikaj\u00faci stav, zatia\u013e \u010do z\u00f3na D ozna\u010duje vibr\u00e1cie dostato\u010dne siln\u00e9 na to, aby sp\u00f4sobili po\u0161kodenie.<\/p>\n\n\n\n\n\n\n\n
Hranica z\u00f3ny<\/th>\nR\u00fdchlostn\u00fd limit (mm\/s RMS)<\/th>\nPrev\u00e1dzkov\u00fd v\u00fdklad<\/th>\n<\/tr>\n<\/thead>\n
A\/B<\/td>\n7.1<\/td>\nPrechod z novo uveden\u00e9ho do prev\u00e1dzky (v\u00fdborn\u00fd) na prijate\u013en\u00fd pre dlhodob\u00fa prev\u00e1dzku<\/td>\n<\/tr>\n
B\/C<\/td>\n14.0<\/td>\nPrechod z prijate\u013enej na obmedzen\u00fa prev\u00e1dzku \u2013 odpor\u00fa\u010da sa vy\u0161etrovanie<\/td>\n<\/tr>\n
C\/D<\/td>\n28.0<\/td>\nPrechod z obmedzen\u00e9ho na nebezpe\u010dn\u00fd stav \u2013 riziko po\u0161kodenia, ak prev\u00e1dzka pokra\u010duje<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pevn\u00e9 z\u00e1klady s\u00fa najbe\u017enej\u0161ou met\u00f3dou in\u0161tal\u00e1cie ve\u013ek\u00fdch kompresorov procesn\u00e9ho plynu v rafin\u00e9ri\u00e1ch a chemick\u00fdch z\u00e1vodoch. Hmotnos\u0165 a tuhos\u0165 z\u00e1kladu obmedzuj\u00fa pohyb r\u00e1mu, a preto s\u00fa hranice z\u00f3n ni\u017e\u0161ie v porovnan\u00ed s flexibiln\u00fdmi (pru\u017einami izolovan\u00fdmi) in\u0161tal\u00e1ciami. Napr\u00edklad hodnota 12 mm\/s RMS na kompresore procesn\u00e9ho plynu s pevn\u00fdm z\u00e1kladom spad\u00e1 do z\u00f3ny B \u2013 prijate\u013en\u00e1 pre neobmedzen\u00fa dlhodob\u00fa prev\u00e1dzku.<\/p>\n

Does ISO 20816-8 Cover Flexible (Spring-Isolated) Foundations?<\/h2>\n

No \u2014 ISO 20816-8 applies to reciprocating compressors mounted on rigid foundations and does not define a separate zone table for flexible (spring-isolated) installations. For spring-isolated machines, the tool offers optional engineering guidance boundaries \u2014 A\/B at 9.0 mm\/s RMS, B\/C at 18.0 mm\/s RMS, and C\/D at 36.0 mm\/s RMS \u2014 extrapolated from the rigid-foundation values to reflect the additional frame motion that spring isolation permits. These guidance values are not part of ISO 20816-8, and an assessment based on them should not be reported as an ISO 20816-8 zone classification.<\/p>\n\n\n\n\n\n\n\n
Hranica z\u00f3ny<\/th>\nRigid Foundation \u2014 ISO 20816-8 (mm\/s RMS)<\/th>\nFlexible Foundation \u2014 extrapolated guidance, not in ISO 20816-8 (mm\/s RMS)<\/th>\nFaktor zv\u00fd\u0161enia<\/th>\n<\/tr>\n<\/thead>\n
A\/B<\/td>\n7.1<\/td>\n9.0<\/td>\n\u00d71,27<\/td>\n<\/tr>\n
B\/C<\/td>\n14.0<\/td>\n18.0<\/td>\n\u00d71,29<\/td>\n<\/tr>\n
C\/D<\/td>\n28.0<\/td>\n36.0<\/td>\n\u00d71,29<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pru\u017einovo izolovan\u00e9 in\u0161tal\u00e1cie s\u00fa be\u017en\u00e9 pre vzduchov\u00e9 kompresory a chladiace kompresory v budov\u00e1ch, kde je potrebn\u00e9 minimalizova\u0165 prenos vibr\u00e1ci\u00ed na kon\u0161trukciu. Flexibiln\u00fd z\u00e1klad umo\u017e\u0148uje r\u00e1mu kompresora vo\u013enej\u0161\u00ed pohyb pri n\u00edzkych frekvenci\u00e1ch, \u010d\u00edm absorbuje zotrva\u010dn\u00e9 sily, a nie ich pren\u00e1\u0161a. In\u017einieri musia pred pou\u017eit\u00edm tohto Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory<\/strong> tool; selecting the wrong foundation type can shift the zone classification by one full zone and lead to incorrect maintenance decisions. Keep in mind that only the rigid-foundation assessment is a true ISO 20816-8 classification \u2014 the flexible-foundation option applies the extrapolated guidance values described above, which lie outside the scope of the standard.<\/p>\n

Ako sa porovn\u00e1vaj\u00fa limity vibr\u00e1ci\u00ed piestov\u00e9ho kompresora s limitmi rota\u010dn\u00e9ho stroja?<\/h2>\n

Reciprocating compressors have significantly higher acceptable vibration levels than rotating machines. The Zone A upper limit for reciprocating compressors on rigid foundations is 7.1 mm\/s RMS \u2014 roughly five times the 1.4 mm\/s RMS Zone A\/B boundary for a medium-size rotating machine (ISO 20816-3, formerly ISO 10816-3, Group 2 on rigid support). This difference exists because the reciprocating mechanism inherently generates higher vibration that is considered normal operation.<\/p>\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nPiestov\u00e9 kompresory (ISO 20816-8, pevn\u00e9)<\/th>\nRotating Machines (ISO 20816-3, Group 2, Rigid Support)<\/th>\nPomer<\/th>\n<\/tr>\n<\/thead>\n
Hranica z\u00f3ny A\/B<\/td>\n7,1 mm\/s RMS<\/td>\n1.4 mm\/s RMS<\/td>\n5.1\u00d7<\/td>\n<\/tr>\n
Hranica z\u00f3ny B\/C<\/td>\n14,0 mm\/s RMS<\/td>\n2,8 mm\/s RMS<\/td>\n5.0\u00d7<\/td>\n<\/tr>\n
Hranica z\u00f3ny C\/D<\/td>\n28,0 mm\/s RMS<\/td>\n4.5 mm\/s RMS<\/td>\n6.2\u00d7<\/td>\n<\/tr>\n
Prim\u00e1rny zdroj vibr\u00e1ci\u00ed<\/td>\nZotrva\u010dn\u00e9 sily piestu a k\u013euky, pulz\u00e1cia plynu<\/td>\nNevyv\u00e1\u017eenos\u0165 rotora, nespr\u00e1vne zarovnanie<\/td>\n\u2014<\/td>\n<\/tr>\n
Dominantn\u00fd frekven\u010dn\u00fd obsah<\/td>\n1\u00d7, 2\u00d7 a vy\u0161\u0161ie r\u00e1dy r\u00fdchlosti behu<\/td>\nPrim\u00e1rne 1\u00d7 r\u00fdchlos\u0165 behu<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Toto porovnanie zd\u00f4raz\u0148uje kritick\u00fd in\u017einiersky princ\u00edp: limity vibr\u00e1ci\u00ed s\u00fa \u0161pecifick\u00e9 pre dan\u00fd typ stroja. Aplik\u00e1cia limitov rota\u010dn\u00e9ho stroja na piestov\u00fd kompresor by sp\u00f4sobila, \u017ee takmer ka\u017ed\u00e1 jednotka by bola signalizovan\u00e1 nadmern\u00fdmi vibr\u00e1ciami, \u010do by viedlo k zbyto\u010dn\u00fdm odstaveniam a plytvaniu zdrojmi na \u00fadr\u017ebu. Naopak, aplik\u00e1cia limitov piestov\u00e9ho kompresora na odstrediv\u00fd kompresor by mohla vies\u0165 k tomu, \u017ee skuto\u010dne nebezpe\u010dn\u00e9 vibr\u00e1cie zostan\u00fa nepov\u0161imnut\u00e9. Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory<\/strong> N\u00e1stroj zabezpe\u010duje automatick\u00e9 pou\u017eitie spr\u00e1vneho \u0161tandardu na z\u00e1klade v\u00fdberu stroja pou\u017e\u00edvate\u013ea.<\/p>\n

\u010co znamenaj\u00fa \u0161tyri vibra\u010dn\u00e9 z\u00f3ny (A, B, C, D) v norme ISO 20816-8?<\/h2>\n

\u0160tyri z\u00f3ny v norme ISO 20816-8 klasifikuj\u00fa intenzitu vibr\u00e1ci\u00ed do ak\u010dn\u00fdch kateg\u00f3ri\u00ed: Z\u00f3na A predstavuje vynikaj\u00faci stav typick\u00fd pre novo uveden\u00e9 stroje, z\u00f3na B ozna\u010duje prijate\u013en\u00fa dlhodob\u00fa prev\u00e1dzku, z\u00f3na C znamen\u00e1, \u017ee vibr\u00e1cie dosiahli \u00farovne vy\u017eaduj\u00face presk\u00famanie a obmedzenie prev\u00e1dzky a z\u00f3na D signalizuje bezprostredn\u00e9 riziko po\u0161kodenia vy\u017eaduj\u00face okam\u017eit\u00fd z\u00e1sah.<\/p>\n

    \n
  1. Z\u00f3na A<\/strong> \u2014 \u00darovne vibr\u00e1ci\u00ed typick\u00e9 pre novo uveden\u00e9 do prev\u00e1dzky alebo ned\u00e1vno gener\u00e1lne opraven\u00e9 piestov\u00e9 kompresory. Nie s\u00fa potrebn\u00e9 \u017eiadne opatrenia. Toto je z\u00e1kladn\u00fd cie\u013e pre akcepta\u010dn\u00e9 sk\u00fa\u0161ky.<\/li>\n
  2. Z\u00f3na B<\/strong> \u2014 \u00darovne vibr\u00e1ci\u00ed s\u00fa prijate\u013en\u00e9 pre neobmedzen\u00fa dlhodob\u00fa prev\u00e1dzku. V\u00e4\u010d\u0161ina kompresorov v be\u017enej prev\u00e1dzke pracuje v tejto z\u00f3ne. Monitorovanie by malo pokra\u010dova\u0165 v be\u017en\u00fdch intervaloch.<\/li>\n
  3. Z\u00f3na C<\/strong> \u2014 \u00darovne vibr\u00e1ci\u00ed, ktor\u00e9 nie s\u00fa prijate\u013en\u00e9 pre trval\u00fa prev\u00e1dzku. Kompresor m\u00f4\u017ee pracova\u0165 obmedzen\u00fd \u010das, k\u00fdm sa pl\u00e1nuj\u00fa n\u00e1pravn\u00e9 opatrenia, ale vy\u0161etrovanie pr\u00ed\u010diny by sa malo za\u010da\u0165 okam\u017eite. Medzi be\u017en\u00e9 pr\u00ed\u010diny patria opotrebovan\u00e9 vodiace li\u0161ty prie\u010dky, uvo\u013enen\u00e9 z\u00e1kladov\u00e9 skrutky alebo rezonancia pulz\u00e1cie plynu.<\/li>\n
  4. Z\u00f3na D<\/strong> \u2014 \u00darovne vibr\u00e1ci\u00ed s\u00fa dostato\u010dne siln\u00e9 na to, aby sp\u00f4sobili r\u00fdchle po\u0161kodenie kompresora, potrubia alebo z\u00e1kladov. Odpor\u00fa\u010da sa okam\u017eit\u00e9 vypnutie alebo zn\u00ed\u017eenie za\u0165a\u017eenia. Pokra\u010dovanie v prev\u00e1dzke v z\u00f3ne D predstavuje riziko katastrofick\u00e9ho zlyhania lo\u017e\u00edsk, k\u013eukov\u00e9ho hriade\u013ea alebo komponentov pod tlakom.<\/li>\n<\/ol>\n

    Syst\u00e9m z\u00f3n poskytuje univerz\u00e1lny komunika\u010dn\u00fd r\u00e1mec medzi t\u00edmami prev\u00e1dzky, \u00fadr\u017eby a in\u017einierstva spo\u013eahlivosti. Namiesto debaty o tom, \u010di je konkr\u00e9tne \u010d\u00edslo vibr\u00e1ci\u00ed \u201evysok\u00e9\u201c alebo \u201en\u00edzke\u201c, sa t\u00edmy m\u00f4\u017eu odvola\u0165 na klasifik\u00e1ciu z\u00f3n pod\u013ea normy ISO 20816-8, aby mohli robi\u0165 konzistentn\u00e9 rozhodnutia v r\u00e1mci r\u00f4znych typov kompresorov a in\u0161tal\u00e1ci\u00ed.<\/p>\n

    Ktor\u00e9 typy kompresorov pokr\u00fdva norma ISO 20816-8?<\/h2>\n

    ISO 20816-8 covers all major categories of reciprocating compressors: process gas compressors used in refineries and chemical plants, industrial air compressors for plant utilities, and refrigeration compressors used in HVAC and industrial cooling systems. The same ISO 20816-8 zone boundary structure applies to all three types when they are mounted on rigid foundations; for spring-isolated installations the tool applies the extrapolated non-ISO guidance values described above.<\/p>\n

      \n
    • Kompresory procesn\u00fdch plynov<\/strong> \u2014 Typicky ve\u013ek\u00e9, viacstup\u0148ov\u00e9, pomalobe\u017en\u00e9 (300 \u2013 600 ot.\/min.) stroje spracov\u00e1vaj\u00face vod\u00edk, zemn\u00fd plyn, etyl\u00e9n a in\u00e9 procesn\u00e9 plyny. Zvy\u010dajne montovan\u00e9 na pevn\u00e9 \u017eelezobet\u00f3nov\u00e9 z\u00e1klady. Tieto stroje predstavuj\u00fa najrizikovej\u0161ie aplik\u00e1cie z d\u00f4vodu prev\u00e1dzky v hor\u013eav\u00fdch alebo toxick\u00fdch l\u00e1tkach.<\/li>\n
    • Vzduchov\u00e9 kompresory<\/strong> \u2014 Stredn\u00e9 a\u017e ve\u013ek\u00e9 piestov\u00e9 vzduchov\u00e9 kompresory (zvy\u010dajne 500 \u2013 1 800 ot.\/min.) pou\u017e\u00edvan\u00e9 na pr\u00edvod vzduchu do z\u00e1vodu. \u010casto sa montuj\u00fa na pevn\u00e9 alebo flexibiln\u00e9 z\u00e1klady v z\u00e1vislosti od po\u017eiadaviek na in\u0161tal\u00e1ciu. Probl\u00e9my s vibr\u00e1ciami vzduchov\u00e9ho kompresora \u010dasto pramenia z degrad\u00e1cie ventilov alebo poruchy pre\u0165a\u017eovacieho ventilu.<\/li>\n
    • Chladiace kompresory<\/strong> \u2014 Piestov\u00e9 kompresory s otvoren\u00fdm pohonom alebo polohermetick\u00e9 piestov\u00e9 kompresory pou\u017e\u00edvan\u00e9 v amoniakov\u00fdch chladiacich syst\u00e9moch, priemyseln\u00fdch chladi\u010doch a chladiarensk\u00fdch skladoch. Tieto m\u00f4\u017eu pracova\u0165 pri vy\u0161\u0161\u00edch ot\u00e1\u010dkach (900 \u2013 1 750 ot.\/min.) a \u010dasto s\u00fa pru\u017einovo izolovan\u00e9, aby sa minimalizoval prenos hluku a vibr\u00e1ci\u00ed do ob\u00fdvan\u00fdch priestorov.<\/li>\n<\/ul>\n

      Str\u00e1nka Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory<\/strong> tool supports all three compressor types with appropriate quick-preset values. For example, the tool includes presets of 12 mm\/s for a process compressor on a rigid foundation (Zone B), 20 mm\/s for an air compressor (Zone C on rigid; also Zone C under the flexible-foundation guidance values), and 8 mm\/s for a refrigeration compressor (Zone B on rigid; Zone A under the flexible-foundation guidance values).<\/p>\n

      Pre\u010do nie s\u00fa vibr\u00e1cie potrubia vyvolan\u00e9 pulz\u00e1ciou zahrnut\u00e9 v norme ISO 20816-8?<\/h2>\n

      Norma ISO 20816-8 sa zaober\u00e1 iba vibr\u00e1ciami r\u00e1mu a lo\u017eiskov\u00e9ho telesa samotn\u00e9ho kompresora. Vibr\u00e1cie potrubia vyvolan\u00e9 pulz\u00e1ciou \u2013 \u010dasto najkritickej\u0161\u00ed probl\u00e9m s vibr\u00e1ciami pri in\u0161tal\u00e1ci\u00e1ch piestov\u00fdch kompresorov \u2013 sa musia posudzova\u0165 samostatne pomocou noriem, ako s\u00fa napr\u00edklad smernice Energetick\u00e9ho in\u0161tit\u00fatu pre predch\u00e1dzanie \u00fanavov\u00fdm poruch\u00e1m v procesn\u00fdch potrubiach vyvolan\u00fdm vibr\u00e1ciami alebo po\u017eiadavky na \u0161t\u00fadiu pulz\u00e1ci\u00ed pod\u013ea API 618.<\/p>\n

      Piestov\u00e9 kompresory generuj\u00fa pulz\u00e1cie tlaku plynu s n\u00e1sobkami prev\u00e1dzkovej r\u00fdchlosti a po\u010dtu valcov. Tieto pulz\u00e1cie sa \u0161\u00edria pripojen\u00fdm potrubn\u00fdm syst\u00e9mom a m\u00f4\u017eu vyvol\u00e1va\u0165 mechanick\u00e9 vlastn\u00e9 frekvencie rozp\u00e4t\u00ed potrub\u00ed, spojov s mal\u00fdm priemerom a pr\u00edstrojov\u00fdch potrub\u00ed. Pod\u013ea prieskumu Energetick\u00e9ho in\u0161tit\u00fatu z roku 2019 predstavuje \u00fanava potrubia z vibr\u00e1ci\u00ed pribli\u017ene 20 % v\u0161etk\u00fdch \u00fanikov uh\u013eovod\u00edkov v \u0165a\u017eobnom a plyn\u00e1renskom priemysle, \u010do z nej rob\u00ed hlavn\u00fa pr\u00ed\u010dinu neh\u00f4d so stratou kontroly.<\/p>\n

      Toto rozl\u00ed\u0161enie je d\u00f4le\u017eit\u00e9: kompresor m\u00f4\u017ee ma\u0165 \u00faplne prijate\u013en\u00e9 vibr\u00e1cie r\u00e1mu (z\u00f3na A alebo B pod\u013ea normy ISO 20816-8) a z\u00e1rove\u0148 vibr\u00e1cie potrubia dostato\u010dne siln\u00e9 na to, aby sp\u00f4sobili \u00fanavov\u00e9 zlyhanie v priebehu nieko\u013ek\u00fdch t\u00fd\u017ed\u0148ov. In\u017einieri vykon\u00e1vaj\u00faci posudzovanie vibr\u00e1ci\u00ed na in\u0161tal\u00e1ci\u00e1ch piestov\u00fdch kompresorov by mali v\u017edy vyhodnoti\u0165 vibr\u00e1cie r\u00e1mu kompresora pod\u013ea normy ISO 20816-8 aj s\u00favisiace vibr\u00e1cie potrubia pod\u013ea pr\u00edslu\u0161n\u00fdch noriem pre vibr\u00e1cie potrubia.<\/p>\n

      Ako pou\u017e\u00edvate bezplatn\u00fd online n\u00e1stroj na hodnotenie vibr\u00e1ci\u00ed pod\u013ea normy ISO 20816-8?<\/h2>\n

      Str\u00e1nka Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory<\/strong> free online tool requires three inputs: compressor type (process gas, air, or refrigeration), foundation type (rigid or flexible), and the measured vibration velocity in mm\/s RMS. The tool instantly returns the applicable vibration zone, the zone boundary values, and an operational recommendation \u2014 based on ISO 20816-8 criteria for rigid foundations, or on the tool’s extrapolated guidance values for flexible foundations.<\/p>\n

        \n
      1. Vyberte typ kompresora<\/strong> \u2014 Vyberte si z mo\u017enost\u00ed Kompresor procesn\u00e9ho plynu, Vzduchov\u00fd kompresor alebo Chladiaci kompresor. Hoci hranice z\u00f3n s\u00fa v s\u00fa\u010dasnosti pre v\u0161etky tri typy rovnak\u00e9, tento v\u00fdber umo\u017e\u0148uje vhodn\u00fd kontext pre text odpor\u00fa\u010dania a podporuje bud\u00face rev\u00edzie noriem, ktor\u00e9 sa m\u00f4\u017eu l\u00ed\u0161i\u0165 pod\u013ea typu kompresora.<\/li>\n
      2. Vyberte typ z\u00e1kladu<\/strong> \u2014 Choose Rigid Foundation or Flexible (Spring-Isolated). This selection determines which set of zone boundaries applies; note that only the rigid-foundation boundaries come from ISO 20816-8, while the flexible option uses the tool’s extrapolated non-ISO guidance values. If uncertain, inspect the compressor mounting: rigid foundations have the frame bolted directly to concrete or steel; flexible foundations have visible spring or rubber isolation elements between the frame and the support structure.<\/li>\n
      3. Zadajte nameran\u00fa r\u00fdchlos\u0165<\/strong> \u2014 Zadajte celkov\u00fa r\u00fdchlos\u0165 vibr\u00e1ci\u00ed v mm\/s RMS nameran\u00fa na r\u00e1me kompresora alebo na telese lo\u017eiska. Merania by sa mali vykon\u00e1va\u0165 v smere maxim\u00e1lnych vibr\u00e1ci\u00ed, zvy\u010dajne horizont\u00e1lne kolmo na os k\u013eukov\u00e9ho hriade\u013ea.<\/li>\n
      4. V\u00fdsledky kontroly<\/strong> \u2014 N\u00e1stroj zobrazuje farebne odl\u00ed\u0161en\u00fd indik\u00e1tor z\u00f3ny (A = zelen\u00e1, B = \u017elt\u00e1, C = oran\u017eov\u00e1, D = \u010derven\u00e1), nameran\u00fa hodnotu vzh\u013eadom na hranice z\u00f3ny a konkr\u00e9tne prev\u00e1dzkov\u00e9 odpor\u00fa\u010danie.<\/li>\n<\/ol>\n

        Pre be\u017en\u00e9 scen\u00e1re s\u00fa k dispoz\u00edcii r\u00fdchle predvo\u013eby: procesn\u00fd kompresor na pevnom z\u00e1klade pri r\u00fdchlosti 12 mm\/s, vzduchov\u00fd kompresor pri r\u00fdchlosti 20 mm\/s a chladiaci kompresor pri r\u00fdchlosti 8 mm\/s. Tieto predvo\u013eby umo\u017e\u0148uj\u00fa in\u017einierom r\u00fdchlo presk\u00fama\u0165 funk\u010dnos\u0165 n\u00e1stroja a pochopi\u0165, ako funguj\u00fa klasifik\u00e1cie z\u00f3n, e\u0161te pred zadan\u00edm vlastn\u00fdch nameran\u00fdch \u00fadajov.<\/p>\n

        Ak\u00e9 postupy merania sa odpor\u00fa\u010daj\u00fa pre hodnotenia pod\u013ea normy ISO 20816-8?<\/h2>\n

        ISO 20816-8 assessments require vibration velocity measurements in mm\/s RMS taken on the compressor frame or main bearing housings. Measurements should be taken at steady-state operating conditions in all three axes (horizontal, vertical, axial), with the highest value used for zone classification. Broadband measurements covering at least 2\u20131000 Hz are recommended.<\/p>\n

          \n
        • Parameter merania:<\/strong> R\u00fdchlos\u0165, mm\/s RMS (stredn\u00e1 kvadratick\u00e1 hodnota). Nepou\u017e\u00edvajte \u0161pi\u010dkov\u00e9 alebo medzi\u0161pi\u010dkov\u00e9 hodnoty \u2013 tie nadhodnotia z\u00e1va\u017enos\u0165 o 40 \u2013 100 % v z\u00e1vislosti od charakterist\u00edk tvaru vlny.<\/li>\n
        • Miesta merania:<\/strong> Teles\u00e1 hlavn\u00fdch lo\u017e\u00edsk, teles\u00e1 vodiacich l\u00ed\u0161t prie\u010dky a povrchy r\u00e1mu v bl\u00edzkosti stredovej \u010diary k\u013eukov\u00e9ho hriade\u013ea. Vyhnite sa meraniu na tenk\u00fdch krytoch, uz\u00e1veroch ventilov alebo potrubiach \u2013 tieto miesta vykazuj\u00fa lok\u00e1lne rezonan\u010dn\u00e9 zosilnenie, ktor\u00e9 nepredstavuje vibr\u00e1cie r\u00e1mu.<\/li>\n
        • Frekven\u010dn\u00fd rozsah:<\/strong> \u0160irokop\u00e1smov\u00e9 meranie pokr\u00fdvaj\u00face minim\u00e1lne 2 Hz a\u017e 1 000 Hz. Piestov\u00e9 kompresory generuj\u00fa zna\u010dn\u00e9 mno\u017estvo energie pri n\u00edzkych frekvenci\u00e1ch (1\u00d7 a 2\u00d7 be\u017en\u00e1 r\u00fdchlos\u0165), preto s\u00fa nevyhnutn\u00e9 pr\u00edstroje s primeranou n\u00edzkofrekven\u010dnou odozvou. \u0160tandardn\u00e9 akcelerometre s hornopriepustn\u00fdmi filtrami nastaven\u00fdmi nad 10 Hz m\u00f4\u017eu prehliadnu\u0165 kritick\u00fd n\u00edzkofrekven\u010dn\u00fd obsah.<\/li>\n
        • Prev\u00e1dzkov\u00e9 podmienky:<\/strong> Merania by sa mali vykon\u00e1va\u0165 pri norm\u00e1lnom, ust\u00e1lenom prev\u00e1dzkovom za\u0165a\u017een\u00ed. Vibr\u00e1cie po\u010das sp\u00fa\u0161\u0165ania, vyp\u00ednania alebo prev\u00e1dzky bez z\u00e1\u0165a\u017ee nie s\u00fa reprezentat\u00edvne a nemali by sa pou\u017e\u00edva\u0165 na klasifik\u00e1ciu z\u00f3n.<\/li>\n
        • Po\u010det od\u010d\u00edtan\u00ed:<\/strong> V ka\u017edom bode vykonajte aspo\u0148 tri po sebe nasleduj\u00face merania, aby ste overili opakovate\u013enos\u0165. Vibr\u00e1cie piestov\u00e9ho kompresora sa m\u00f4\u017eu meni\u0165 v z\u00e1vislosti od za\u0165a\u017eenia plynom, stavu ventilu a tepeln\u00e9ho stavu.<\/li>\n<\/ul>\n

          Ako zapad\u00e1 norma ISO 20816-8 do rodiny noriem ISO 20816?<\/h2>\n

          Norma ISO 20816-8 je jednou z nieko\u013ek\u00fdch \u010dast\u00ed \u0161pecifick\u00fdch pre stroje v r\u00e1mci rodiny noriem ISO 20816 pre hodnotenie vibr\u00e1ci\u00ed. Ka\u017ed\u00e1 \u010das\u0165 sa zaober\u00e1 inou kateg\u00f3riou strojov s hranicami z\u00f3n kalibrovan\u00fdmi na vibra\u010dn\u00e9 charakteristiky dan\u00e9ho konkr\u00e9tneho typu zariadenia. T\u00e1to rodina nahradila a zl\u00fa\u010dila star\u0161ie s\u00e9rie ISO 10816 a ISO 7919.<\/p>\n\n\n\n\n\n\n\n\n\n\n
          \u0160tandardn\u00e1 \u010das\u0165<\/th>\nTyp stroja<\/th>\nK\u013e\u00fa\u010dov\u00fd rozdiel oproti norme ISO 20816-8<\/th>\n<\/tr>\n<\/thead>\n
          ISO 20816-1<\/td>\nV\u0161eobecn\u00e9 usmernenia<\/td>\nR\u00e1mcov\u00fd \u0161tandard; neuv\u00e1dza konkr\u00e9tne hranice z\u00f3ny<\/td>\n<\/tr>\n
          ISO 20816-3<\/td>\nPriemyseln\u00e9 stroje (\u010derpadl\u00e1, motory, ventil\u00e1tory, kompresory > 15 kW)<\/td>\nLen pre rota\u010dn\u00e9 stroje; v\u00fdrazne ni\u017e\u0161ie limity vibr\u00e1ci\u00ed<\/td>\n<\/tr>\n
          ISO 20816-5<\/td>\nHydraulick\u00e9 turb\u00edny a \u010derpacie turb\u00edny<\/td>\nZah\u0155\u0148a vibr\u00e1cie hriade\u013ea aj kon\u0161trukcie hydrogener\u00e1torov<\/td>\n<\/tr>\n
          ISO 20816-8<\/td>\nPiestov\u00e9 kompresory<\/td>\nNajvy\u0161\u0161ie hranice z\u00f3ny odr\u00e1\u017eaj\u00face sily vratn\u00e9ho mechanizmu<\/td>\n<\/tr>\n
          ISO 20816-9<\/td>\nPrevodovky<\/td>\nZoh\u013ead\u0148uje frekvencie z\u00e1beru ozuben\u00fdch kolies a sily zasahovania zubov<\/td>\n<\/tr>\n
          ISO 20816-21<\/td>\nVetern\u00e9 turb\u00edny<\/td>\nRie\u0161i vibr\u00e1cie gondoly a ve\u017ee pri premenlivom za\u0165a\u017een\u00ed vetrom<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Pochopenie miesta normy ISO 20816-8 v r\u00e1mci tejto rodiny pom\u00e1ha in\u017einierom vyhn\u00fa\u0165 sa be\u017enej chybe: pou\u017eitiu nespr\u00e1vnej \u010dasti normy pre ich konkr\u00e9tny stroj. Napr\u00edklad in\u017einier spo\u013eahlivosti pracuj\u00faci v rafin\u00e9rii m\u00f4\u017ee potrebova\u0165 normu ISO 20816-3 pre odstrediv\u00e9 \u010derpadl\u00e1 a motory, ISO 20816-8 pre piestov\u00e9 kompresory a ISO 20816-9 pre prevodovky \u2013 to v\u0161etko v r\u00e1mci toho ist\u00e9ho z\u00e1vodu.<\/p>\n

          \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n

          Ak\u00e1 \u00farove\u0148 vibr\u00e1ci\u00ed je prijate\u013en\u00e1 pre piestov\u00fd kompresor?<\/h3>\n

          For reciprocating compressors on rigid foundations, vibration velocity up to 7.1 mm\/s RMS is considered excellent (Zone A), and up to 14.0 mm\/s RMS is acceptable for unrestricted long-term operation (Zone B) per ISO 20816-8. For flexible (spring-isolated) foundations ISO 20816-8 does not define limits; the tool’s extrapolated engineering guidance uses 9.0 and 18.0 mm\/s RMS respectively.<\/p>\n

          M\u00f4\u017eem pou\u017ei\u0165 limity normy ISO 20816-3 pre piestov\u00fd kompresor?<\/h3>\n

          No. ISO 20816-3 applies exclusively to rotating machines. Reciprocating compressors generate inherently higher vibration due to the piston-crank mechanism, and their acceptable levels are several times higher than typical rotating machine limits. Always use ISO 20816-8 for reciprocating compressors to avoid false alarms and unnecessary shutdowns.<\/p>\n

          Does ISO 20816-8 define limits for flexible (spring-isolated) foundations?<\/h3>\n

          No. ISO 20816-8 applies to reciprocating compressors on rigid foundations and defines zone boundaries for rigid installations only. The flexible-foundation values offered by the tool (for example, 9.0 mm\/s at the A\/B boundary versus 7.1 mm\/s for rigid) are extrapolated engineering guidance \u2014 approximately 27\u201329% above the rigid boundaries, reflecting the additional frame motion allowed by the isolation system \u2014 and are not ISO 20816-8 limits.<\/p>\n

          Vz\u0165ahuje sa norma ISO 20816-8 na vibr\u00e1cie potrub\u00ed piestov\u00fdch kompresorov?<\/h3>\n

          Norma ISO 20816-8 sa vz\u0165ahuje iba na vibr\u00e1cie r\u00e1mu kompresora a telesa lo\u017eiska. Vibr\u00e1cie potrubia vyvolan\u00e9 pulz\u00e1ciou \u2013 \u010dasto najkritickej\u0161\u00ed probl\u00e9m \u2013 sa musia posudzova\u0165 samostatne pomocou noriem, ako s\u00fa smernice Energetick\u00e9ho in\u0161tit\u00fatu, alebo vykonan\u00edm \u0161t\u00fadie pulz\u00e1cie a mechanickej odozvy pod\u013ea normy API 618 po\u010das f\u00e1zy n\u00e1vrhu.<\/p>\n

          M\u00e1m mera\u0165 vibr\u00e1cie v posunut\u00ed, r\u00fdchlosti alebo zr\u00fdchlen\u00ed pod\u013ea normy ISO 20816-8?<\/h3>\n

          Hranice z\u00f3n pod\u013ea normy ISO 20816-8 s\u00fa definovan\u00e9 r\u00fdchlos\u0165ou, konkr\u00e9tne mm\/s RMS. Pou\u017e\u00edvajte \u0161irokop\u00e1smov\u00e9 merania r\u00fdchlosti pokr\u00fdvaj\u00face aspo\u0148 2 \u2013 1 000 Hz. Ak v\u00e1\u0161 pr\u00edstroj meria zr\u00fdchlenie, uistite sa, \u017ee m\u00e1 softv\u00e9rov\u00fa integr\u00e1ciu na prevod na r\u00fdchlos\u0165 s primeranou n\u00edzkofrekven\u010dnou odozvou, preto\u017ee piestov\u00e9 kompresory produkuj\u00fa zna\u010dn\u00e9 mno\u017estvo energie pri 1\u00d7 a 2\u00d7 prev\u00e1dzkovej r\u00fdchlosti (\u010dasto pod 20 Hz).<\/p>\n

          Ako \u010dasto by sa mali mera\u0165 vibr\u00e1cie na piestov\u00fdch kompresoroch?<\/h3>\n

          Hoci norma ISO 20816-8 nepredpisuje konkr\u00e9tny interval monitorovania, osved\u010den\u00e9 postupy v odvetv\u00ed odpor\u00fa\u010daj\u00fa mesa\u010dn\u00e9 merania na trase pre nekritick\u00e9 kompresory a nepretr\u017eit\u00e9 online monitorovanie pre kritick\u00e9 kompresory procesn\u00e9ho plynu. Stroje prev\u00e1dzkovan\u00e9 v z\u00f3ne C by sa mali monitorova\u0165 so zv\u00fd\u0161enou frekvenciou (t\u00fd\u017edenne alebo nepretr\u017eite), k\u00fdm sa nedokon\u010dia n\u00e1pravn\u00e9 opatrenia.<\/p>\n

          Ak\u00e9 s\u00fa be\u017en\u00e9 pr\u00ed\u010diny vysok\u00fdch vibr\u00e1ci\u00ed piestov\u00fdch kompresorov?<\/h3>\n

          Medzi be\u017en\u00e9 pr\u00ed\u010diny patr\u00ed opotrebovan\u00e9 tesnenie kr\u00ed\u017eovej hlavy alebo piestnej ty\u010de, uvo\u013enen\u00e9 z\u00e1kladov\u00e9 skrutky, nevyv\u00e1\u017een\u00e9 proti\u013eahl\u00e9 valce, degradovan\u00e9 alebo netesn\u00e9 ventily kompresora, rezonancia pulz\u00e1ci\u00ed plynu v potrubnom syst\u00e9me, nespr\u00e1vne zarovnanie medzi kompresorom a pohonom a opotrebovanie k\u013eukov\u00e9ho hriade\u013ea alebo lo\u017eiska. \u0160pecifick\u00fd obsah vibra\u010dnej frekvencie (spektr\u00e1lna anal\u00fdza) pom\u00e1ha rozl\u00ed\u0161i\u0165 tieto z\u00e1kladn\u00e9 pr\u00ed\u010diny.<\/p>\n

          Je n\u00e1stroj Vibration Limits \u2013 Reciprocating Compressors (Limity vibr\u00e1ci\u00ed \u2013 piestov\u00e9 kompresory) bezplatn\u00fd?<\/h3>\n

          \u00c1no. N\u00e1stroj Vibration Limits \u2014 Reciprocating Compressors je bezplatn\u00e1 in\u017einierska kalkula\u010dka zalo\u017een\u00e1 na prehliada\u010di (Free Engineering Tool #024), ktor\u00e1 implementuje klasifik\u00e1ciu z\u00f3n pod\u013ea normy ISO 20816-8. Nevy\u017eaduje si registr\u00e1ciu, in\u0161tal\u00e1ciu softv\u00e9ru ani platbu. In\u017einieri m\u00f4\u017eu zada\u0165 svoje nameran\u00e9 hodnoty vibr\u00e1ci\u00ed a okam\u017eite z\u00edska\u0165 klasifik\u00e1ciu z\u00f3n s prev\u00e1dzkov\u00fdmi odpor\u00fa\u010daniami.<\/p>","protected":false},"excerpt":{"rendered":"

          Bezplatn\u00e1 online kalkula\u010dka na vyhodnotenie vibra\u010dn\u00fdch z\u00f3n pod\u013ea normy ISO 20816-8 pre piestov\u00e9 kompresory. Vyhodno\u0165te r\u00fdchlos\u0165 lo\u017eiskov\u00e9ho telesa vzh\u013eadom na limity z\u00f3n A\/B\/C\/D pre kompresory procesn\u00fdch plynov, vzduchu a chladenia na pevn\u00fdch a flexibiln\u00fdch z\u00e1kladoch.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100290","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/calculator\/100290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":8,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/calculator\/100290\/revisions"}],"predecessor-version":[{"id":102639,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/calculator\/100290\/revisions\/102639"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=100290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=100290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=100290"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}