{"id":1078,"date":"2024-06-03T14:49:51","date_gmt":"2024-06-03T06:49:51","guid":{"rendered":"https:\/\/www.tflequip.com\/products\/ye3p-copy\/"},"modified":"2024-09-26T14:09:12","modified_gmt":"2024-09-26T06:09:12","slug":"ye4","status":"publish","type":"products","link":"https:\/\/www.tflequip.com\/lv\/products\/ye4\/","title":{"rendered":"YE4"},"content":{"rendered":"

Ieviest<\/h2>\n

YE4 s\u0113rijas spr\u0101dziendro\u0161s zemsprieguma tr\u012bsf\u0101\u017eu asinhronais motors<\/span><\/span><\/p>\n

R\u0101mja numurs: H63-55 <\/span><\/p>\n

Jauda: 0,12 ~ 450 kW <\/span><\/p>\n

Polu skaits: 212P <\/span><\/p>\n

Spriegums: 1000 V un zem\u0101ks<\/span><\/p>\n

 <\/p>\n

uz\u0146\u0113muma misija<\/a><\/span><\/h2>\n

Ap\u0146\u0113musies veikt zin\u0101tniskos p\u0113t\u012bjumus un inteli\u0123entu energotaup\u012bgu motoru ra\u017eo\u0161anu, lai k\u013c\u016btu par augstas klases ra\u017eo\u0161anas l\u012bderi motoru nozar\u0113.<\/span><\/p>\n

Visa darba pamat\u0101 ir koncentr\u0113\u0161an\u0101s uz \"zin\u0101tniskaj\u0101m un tehnolo\u0123iskaj\u0101m inov\u0101cij\u0101m\", \"klientu ieguvumu maksimiz\u0113\u0161anu\", \"za\u013co vides aizsardz\u012bbu\", <\/span><\/span><\/p>\n

S\u0101kot no produkta dizaina, ra\u017eo\u0161anas un ra\u017eo\u0161anas procesa l\u012bdz za\u013c\u0101s vides aizsardz\u012bbas koncepcijai, <\/span><\/span><\/p>\n

Izveidot nozares vado\u0161o za\u013co z\u012bmolu ar augstas ener\u0123ijas taup\u012b\u0161anas, augstas vides aizsardz\u012bbas un augstas veiktsp\u0113jas produktiem.<\/span><\/span><\/p>\n

 <\/p>\n

korporat\u012bvais redz\u0113jums<\/a><\/h2>\n

Izveidot pirm\u0101s klases augstas efektivit\u0101tes, ener\u0123ijas taup\u012b\u0161anas un vides aizsardz\u012bbas motora profesion\u0101lu ra\u017eo\u0161anas un p\u0113tniec\u012bbas b\u0101zi, veidot simts gadu uz\u0146\u0113mumu, izveidot starptautisku z\u012bmolu, xing valsts r\u016bpniec\u012bbu.<\/span><\/p>\n

Tehnolo\u0123iju att\u012bst\u012bbas virziens: no augstas efektivit\u0101tes uz \u012bpa\u0161i efekt\u012bvu att\u012bst\u012bbu. <\/span><\/span><\/p>\n

Produkta funkciju att\u012bst\u012bbas virziens: motora un motora integr\u0101cija, sistematiz\u0101cija, inteli\u0123enta att\u012bst\u012bba. <\/span><\/span><\/p>\n

Piel\u0101gojiet m\u0101rketinga re\u017e\u012bmu, iedzi\u013cinieties klient\u0101 un akt\u012bvi pal\u012bdziet klientiem produktu risin\u0101jumu izv\u0113l\u0113, projekt\u0113\u0161an\u0101 un uzst\u0101d\u012b\u0161an\u0101. <\/span><\/span><\/p>\n

Ievie\u0161ot \"za\u013c\u0101s\" koncepcijas koncepciju no pa\u0161iem pirms\u0101kumiem, klienti izjut\u012bs \"za\u013c\u0101s\" koncepcijas sniegtos ilgtermi\u0146a ieguvumus un veicin\u0101s \"za\u013co\" lielo un vid\u0113jo motoru att\u012bst\u012bbu, lai rad\u012btu starptautiskus z\u012bmolus.<\/span><\/span><\/p>\n

<\/h2>\n

pamatv\u0113rt\u012bba<\/a><\/h2>\n

Integrit\u0101te, sadarb\u012bba, inov\u0101cijas, kvalit\u0101te.<\/p>\n

Integrit\u0101te: likumu iev\u0113ro\u0161ana, integrit\u0101tes p\u0101rvald\u012bba.<\/span><\/span> Sadarb\u012bba: vienot\u012bba un sadarb\u012bba, daudzveid\u012bba un abpus\u0113ja izdev\u012bba.<\/span><\/span> Inov\u0101cijas: lauziet stereotipus, lauziet trad\u012bcijas.<\/span><\/span> Kvalit\u0101te: Kvalit\u0101te: tiek\u0161an\u0101s p\u0113c izcil\u012bbas, cen\u0161oties sasniegt pirm\u0101s klases kvalit\u0101ti.<\/span><\/span><\/p>\n

 <\/p>\n

 <\/p>\n

Atbilde uz s\u016bk\u0146a kavit\u0101ciju<\/span><\/strong><\/h2>\n

Kas ir kavit\u0101cija?
\nKad \u0161\u0137idruma viet\u0113jais spiediens s\u016bkn\u012b samazin\u0101s l\u012bdz kritiskajam spiedienam, \u0161\u0137idrum\u0101 veidojas burbu\u013ci. Kavit\u0101cija ir viss burbu\u013cu veido\u0161an\u0101s, kust\u012bbas, sadal\u012b\u0161an\u0101s un likvid\u0113\u0161an\u0101s process. Kritiskais spiediens parasti ir tuvs iztvaiko\u0161anas spiedienam.
\nK\u0101di ir kavit\u0101cijas draudi?
\n1. P\u0101rslodzes komponentu korozija
\nKorozijai ir divi iemesli:
\nPirmk\u0101rt, augstfrekvences (600-25000 Hz) trieciena d\u0113\u013c, ko rada burbu\u013cu pl\u012b\u0161ana ar spiedienu l\u012bdz 49 MPa, met\u0101la virsm\u0101 rodas meh\u0101nisk\u0101 erozija;
\nOtrais iemesls ir tas, ka iztvaiko\u0161anas laik\u0101 izdal\u0101s siltums, un rodas temperat\u016bras starp\u012bbas akumulators, kas izraisa hidrol\u012bzi. Radies sk\u0101beklis oksid\u0113 met\u0101lu un izraisa \u0137\u012bmisko koroziju.
\n2. S\u016bk\u0146a veiktsp\u0113jas pasliktin\u0101\u0161an\u0101s
\nKad notiek s\u016bk\u0146a kavit\u0101cija, ener\u0123ijas apmai\u0146a l\u0101psti\u0146rite\u0146a iek\u0161pus\u0113 tiek trauc\u0113ta un boj\u0101ta, un t\u0101s \u0101r\u0113j\u0101s \u012bpa\u0161\u012bbas izpau\u017eas k\u0101 Q-H l\u012bknes, Q-P un Q-eta l\u012bknes samazin\u0101\u0161an\u0101s. Smagos gad\u012bjumos t\u0101 var p\u0101rtraukt \u0161\u0137idruma pl\u016bsmu s\u016bkn\u012b un ne\u013caut tam darboties.
\nMazo \u012bpatn\u0113jo apgriezienu gad\u012bjum\u0101, \u0146emot v\u0113r\u0101 \u0161aurus un garus pl\u016bsmas kan\u0101lus starp l\u0101psti\u0146\u0101m, tikl\u012bdz rodas kavit\u0101cija, burbu\u013ci aizpilda visu pl\u016bsmas kan\u0101lu, un veiktsp\u0113jas l\u012bkne strauji samazin\u0101s.
\nVid\u0113jiem un lieliem \u012bpatn\u0113jiem \u0101trumiem pl\u016bsmas ce\u013c\u0161 ir \u012bss un plats, t\u0101p\u0113c ir nepiecie\u0161ams p\u0101rejas process, lai burbu\u013ci att\u012bst\u012btos un aizpild\u012btu visu pl\u016bsmas ce\u013cu. Atbilsto\u0161\u0101 veiktsp\u0113jas l\u012bkne s\u0101kas ar l\u0113nu kritumu un p\u0113c tam palielin\u0101s l\u012bdz noteiktam pl\u016bsmas \u0101trumam, bet tad strauji samazin\u0101s.
\nCentrb\u0113dzes s\u016bk\u0146u kavit\u0101cijai visbie\u017e\u0101k pak\u013caut\u0101s jomas ir:
\nPie priek\u0161\u0113j\u0101s v\u0101ka pl\u0101ksnes ar maksim\u0101lo l\u0101psti\u0146rite\u0146a izliekumu, pie l\u0101psti\u0146as iepl\u016bdes malas zemspiediena pus\u0113;
\nIzspiediet zemspiediena pusi pie v\u0101rpstas diafragmas iepl\u016bdes malas un virzo\u0161\u0101s l\u0101psti\u0146as kamer\u0101;
\nBl\u012bv\u0113juma atstarpe starp l\u0101psti\u0146as uzga\u013ca \u0101r\u0113jo apli un liela \u012bpatn\u0113j\u0101 \u0101truma l\u0101psti\u0146rite\u0146a korpusu bez priek\u0161\u0113j\u0101s p\u0101rsega pl\u0101ksnes, k\u0101 ar\u012b l\u0101psti\u0146as uzga\u013ca zemspiediena pus\u0113;
\nDaudzpak\u0101pju s\u016bk\u0146a pirm\u0101s pak\u0101pes l\u0101psti\u0146rati.
\nUzlabot pretkavit\u0101cijas pas\u0101kumus: Uzlabot s\u016bk\u0146a konstrukciju no s\u016bkn\u0113\u0161anas iepl\u016bdes atveres l\u012bdz pat l\u0101psti\u0146rite\u0146a tuvumam. Palielin\u0101t p\u0101rpl\u016bdes laukumu; Palielin\u0101t l\u0101psti\u0146rite\u0146a v\u0101ka pl\u0101ksnes iepl\u016bdes da\u013cas izliekuma r\u0101diusu, lai samazin\u0101tu strauju \u0161\u0137idruma pl\u016bsmas pa\u0101trin\u0101jumu un spiediena kritumu; Attiec\u012bgi samazinot l\u0101psti\u0146as iepl\u016bdes da\u013cas biezumu un noapa\u013cojot l\u0101psti\u0146as iepl\u016bdes da\u013cu, lai t\u0101 b\u016btu tuvu pl\u016bsmas l\u012bnijai, var samazin\u0101t ar\u012b pa\u0101trin\u0101jumu un spiediena samazin\u0101jumu ap l\u0101psti\u0146as galvu; Uzlabot l\u0101psti\u0146rite\u0146a un l\u0101psti\u0146as iepl\u016bdes da\u013cas virsmas gludumu, lai samazin\u0101tu pretest\u012bbas zudumus; Papla\u0161in\u0101t l\u0101psti\u0146as iepl\u016bdes malu pret l\u0101psti\u0146as iepl\u016bdes da\u013cu, lai \u0161\u0137idruma pl\u016bsma var\u0113tu iepriek\u0161 sa\u0146emt darbu un palielin\u0101t spiedienu.
\nIzmantojot iepriek\u0161 induc\u0113tu riteni, \u0161\u0137idruma pl\u016bsma iepriek\u0161 veic darbu iepriek\u0161 induc\u0113taj\u0101 riten\u012b, lai palielin\u0101tu \u0161\u0137idruma pl\u016bsmas spiedienu.
\nIzmantojot dubult\u0101s ies\u016bk\u0161anas l\u0101psti\u0146riteni, \u0161\u0137idruma pl\u016bsma non\u0101k l\u0101psti\u0146riten\u012b no ab\u0101m pus\u0113m vienlaic\u012bgi, dubultojot iepl\u016bdes \u0161\u0137\u0113rsgriezumu un samazinot iepl\u016bdes pl\u016bsmas \u0101trumu par vienu.
\nKonstrukcijas nosac\u012bjums ir nedaudz liel\u0101ks pozit\u012bvs uzpl\u016bdes le\u0146\u0137is, lai palielin\u0101tu l\u0101psti\u0146as iepl\u016bdes le\u0146\u0137i, samazin\u0101tu izliekumu l\u0101psti\u0146as iepl\u016bdes atver\u0113, samazin\u0101tu l\u0101psti\u0146as blo\u0137\u0113\u0161anos un palielin\u0101tu iepl\u016bdes laukumu; Uzlabot darba apst\u0101k\u013cus pie lieliem pl\u016bsmas \u0101trumiem, lai samazin\u0101tu pl\u016bsmas zudumus. Ta\u010du pozit\u012bvajam uzpl\u016bdes le\u0146\u0137im nevajadz\u0113tu b\u016bt p\u0101r\u0101k lielam, cit\u0101di tas ietekm\u0113s efektivit\u0101ti.
\nPretkavit\u0101cijas materi\u0101lu izmanto\u0161ana. Prakse liecina, ka, jo augst\u0101ka ir materi\u0101lu iztur\u012bba, ciet\u012bba un stingr\u012bba, jo lab\u0101ka to \u0137\u012bmisk\u0101 stabilit\u0101te un liel\u0101ka iztur\u012bba pret kavit\u0101ciju.
\nPas\u0101kumi \u0161\u0137idruma iepl\u016bdes ier\u012bces efekt\u012bv\u0101s kavit\u0101cijas rezerves palielin\u0101\u0161anai: Palieliniet \u0161\u0137idruma l\u012bme\u0146a spiedienu uzglab\u0101\u0161anas tvertn\u0113 pirms s\u016bk\u0146a, lai palielin\u0101tu efekt\u012bvo kavit\u0101cijas rezervi.
\nSamaziniet s\u016bk\u0146a ies\u016bkn\u0113\u0161anas ier\u012bces uzst\u0101d\u012b\u0161anas augstumu.
\nNomainiet ies\u016bkn\u0113\u0161anas ier\u012bci pret pretpl\u016bsmas ier\u012bci.
\nSamaziniet pl\u016bsmas zudumus cauru\u013cvad\u0101 pirms s\u016bk\u0146a. M\u0113\u0123iniet sa\u012bsin\u0101t cauru\u013cvadu vajadz\u012bgaj\u0101 diapazon\u0101, samazin\u0101t pl\u016bsmas \u0101trumu cauru\u013cvad\u0101, samazin\u0101t l\u012bkumus un v\u0101rstus, k\u0101 ar\u012b p\u0113c iesp\u0113jas palielin\u0101t v\u0101rstu atv\u0113rumu.
\nSamazin\u0101t darba vides temperat\u016bru s\u016bk\u0146a iepl\u016bdes atver\u0113 (kad transport\u0113t\u0101 darba vide tuvojas pies\u0101tin\u0101juma temperat\u016brai).
\nIepriek\u0161 min\u0113tos pas\u0101kumus var vispus\u012bgi analiz\u0113t un piem\u0113rot atbilsto\u0161i, pamatojoties uz s\u016bk\u0146u veidu, materi\u0101lu un lieto\u0161anas apst\u0101k\u013cu izv\u0113li uz vietas.
\nKavit\u0101cijas robe\u017ea un ies\u016bk\u0161anas galva: Ja s\u016bknis darbojas, \u0161\u0137idrums l\u0101psti\u0146rite\u0146a iepl\u016bdes atver\u0113 rada tvaiku pie noteikta vakuuma spiediena. Tvaika burbul\u012b\u0161i \u0161\u0137idruma da\u013ci\u0146u trieciena kust\u012bbas rezult\u0101t\u0101 izrais\u012bs eroziju uz l\u0101psti\u0146rite\u0146a met\u0101la virsmas, t\u0101d\u0113j\u0101di boj\u0101jot l\u0101psti\u0146riteni un citus met\u0101lus. \u0160aj\u0101 laik\u0101 vakuuma spiedienu sauc par iztvaiko\u0161anas spiedienu. Kavit\u0101cijas rezerve ir ener\u0123ijas p\u0101rpalikums uz \u0161\u0137idruma svara vien\u012bbu s\u016bk\u0146a iepl\u016bdes atver\u0113, kas p\u0101rsniedz iztvaiko\u0161anas spiedienu, izteikts metros un izteikts (NPSH) r.
\nIes\u016bkn\u0113\u0161anas augstums ir nepiecie\u0161am\u0101 kavit\u0101cijas rezerve \u0394 h, kas ir vakuuma pak\u0101pe, l\u012bdz kurai s\u016bknim ir at\u013cauts ies\u016bkt \u0161\u0137idrumu, tas ir, s\u016bk\u0146a at\u013cautais uzst\u0101d\u012b\u0161anas augstums metros. Ies\u016bk\u0161anas augstums = standarta atmosf\u0113ras spiediens (10,33 metri) - NPSH - dro\u0161\u012bbas rezerve (0,5 metri) - standarta atmosf\u0113ras spiediens var nospiest cauru\u013cvada vakuuma augstumu l\u012bdz 10,33 metriem.
\nPiem\u0113ram, ja konkr\u0113ta s\u016bk\u0146a kavit\u0101cijas rezerve ir 4,0 metri, apr\u0113\u0137iniet ies\u016bk\u0161anas augstumu \u0394 h
\nRisin\u0101jums: \u0394 h=10,33-4,0-0,5=5,83 m
\nKatra m\u0113rvien\u012bba un tai atbilsto\u0161ais burts: NPSH attiecas uz starp\u012bbu starp kop\u0113jo \u0161\u0137idruma spiedienu s\u016bk\u0146a iepl\u016bd\u0113 un spiediena spiedienu, pie kura \u0161\u0137idrums iztvaiko. M\u0113rvien\u012bba tiek apz\u012bm\u0113ta metros (\u016bdens kolonn\u0101) un izteikta (NPSH), ko var iedal\u012bt \u0161\u0101d\u0101s kategorij\u0101s: NPSHa - ier\u012bces NPSH, kas paz\u012bstama ar\u012b k\u0101 efekt\u012bva NPSH, kurai palielinoties, ir maz\u0101ka kavit\u0101cijas tendence;
\nNPSHr - s\u016bk\u0146a NPSH, kas paz\u012bstams ar\u012b k\u0101 nepiecie\u0161amais NPSH vai s\u016bk\u0146a iepl\u016bdes dinamisk\u0101 spiediena kritums, jo maz\u0101ks NPSHr, jo lab\u0101ka ir pretkavit\u0101cijas veiktsp\u0113ja;
\nNPSHc - kritisk\u0101 kavit\u0101cijas rezerve, kas attiecas uz kavit\u0101cijas rezervi, kas atbilst noteiktam s\u016bk\u0146a veiktsp\u0113jas samazin\u0101jumam;
\n[NPSH] - pie\u013caujam\u0101 kavit\u0101cijas rezerve, kas ir kavit\u0101cijas rezerve, ko izmanto, lai noteiktu s\u016bk\u0146a darb\u012bbas apst\u0101k\u013cus, parasti to uzskata par [NPSH]=(1,1-1,5) NPSHc.<\/p>","protected":false},"excerpt":{"rendered":"

YE4 s\u0113rijas spr\u0101dziendro\u0161s zemsprieguma tr\u012bsf\u0101\u017eu asinhronais motors<\/p>\n

R\u0101mja numurs: H63-55 <\/span><\/p>\n

Jauda: 0,12 ~ 450 kW <\/span><\/p>\n

Polu skaits: 212P <\/span><\/p>\n

Spriegums: 1000 V un zem\u0101ks<\/span><\/p>","protected":false},"featured_media":1080,"template":"","adweb_product_categories":[114],"adweb_product_tags":[99,117,303,305,301,302,306,304,300],"gallery":[1079],"order":null,"acf":[],"_links":{"self":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/adweb_products\/1078"}],"collection":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/adweb_products"}],"about":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/types\/products"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/media\/1080"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/media?parent=1078"}],"wp:term":[{"taxonomy":"adweb_product_cat","embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/adweb_product_categories?post=1078"},{"taxonomy":"adweb_product_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/adweb_product_tags?post=1078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}