{"id":1505,"date":"2025-06-27T15:25:58","date_gmt":"2025-06-27T07:25:58","guid":{"rendered":"https:\/\/www.tflequip.com\/?p=1505"},"modified":"2025-06-27T15:25:59","modified_gmt":"2025-06-27T07:25:59","slug":"should-the-outlet-valve-be-closed-when-starting-a-centrifugal-pump","status":"publish","type":"post","link":"https:\/\/www.tflequip.com\/lv\/should-the-outlet-valve-be-closed-when-starting-a-centrifugal-pump\/","title":{"rendered":"Vai, palai\u017eot centrb\u0113dzes s\u016bkni, izpl\u016bdes v\u0101rstam j\u0101b\u016bt aizv\u0113rtam?"},"content":{"rendered":"

Uzs\u0101kot centrb\u0113dzes s\u016bk\u0146a darb\u012bbu, j\u0101piev\u0113r\u0161 uzman\u012bba daudz\u0101m liet\u0101m. Vai, palai\u017eot centrb\u0113dzes s\u016bkni, ir j\u0101aizver izpl\u016bdes v\u0101rsts?<\/p>\n

Atbilde ir, ka jums tas ir j\u0101aizver!<\/p>\n

1: K\u0101p\u0113c, palai\u017eot centrb\u0113dzes s\u016bkni, izpl\u016bdes v\u0101rstam j\u0101b\u016bt aizv\u0113rtam?<\/p>\n

\"20250627145014\"<\/p>\n

Kad tiek iedarbin\u0101ts centrb\u0113dzes \u016bdens s\u016bknis, s\u016bk\u0146a izejas caurul\u0113 nav \u016bdens, t\u0101p\u0113c nav caurules pretest\u012bbas un pacel\u0161anas augstuma pretest\u012bbas. P\u0113c centrb\u0113dzes s\u016bk\u0146a iedarbin\u0101\u0161anas centrb\u0113dzes s\u016bk\u0146a augstums ir \u013coti zems, un pl\u016bsmas \u0101trums ir \u013coti liels. \u0160aj\u0101 laik\u0101 s\u016bk\u0146a motora (v\u0101rpstas jauda) jauda ir \u013coti liela (saska\u0146\u0101 ar s\u016bk\u0146a veiktsp\u0113jas l\u012bkni), ko ir viegli p\u0101rslogot, kas saboj\u0101 s\u016bk\u0146a motoru un l\u012bniju. T\u0101p\u0113c, lai s\u016bknis darbotos norm\u0101li, palai\u0161anas laik\u0101 izejas v\u0101rstam j\u0101b\u016bt aizv\u0113rtam.<\/p>\n

Ja tiek izmantots aksi\u0101l\u0101s pl\u016bsmas \u016bdens s\u016bknis, situ\u0101cija ir pret\u0113ja. Tas j\u0101iedarbina ar atv\u0113rtu v\u0101rstu. \u0160aj\u0101 laik\u0101 motora jauda ir minim\u0101la. T\u0101 k\u0101 \u012bs\u0101 laika period\u0101 nav pretest\u012bbas, tas darbosies ar lielu pl\u016bsmas \u0101trumu, kas bie\u017ei izraisa s\u016bk\u0146a vibr\u0101ciju, troksni un pat motora p\u0101rslodzi, kas sadedzina motoru. Izpl\u016bdes v\u0101rsta aizv\u0113r\u0161ana ir l\u012bdzv\u0113rt\u012bga m\u0101ksl\u012bgai pretest\u012bbas spiediena noteik\u0161anai caurul\u0113. P\u0113c tam, kad s\u016bknis darbojas norm\u0101li, l\u0113n\u0101m iedarbiniet v\u0101rstu, lai \u013cautu s\u016bknim pak\u0101peniski norm\u0101li str\u0101d\u0101t pa t\u0101 darb\u012bbas l\u012bkni.<\/p>\n

Pirms centrb\u0113dzes s\u016bk\u0146a iedarbin\u0101\u0161anas j\u0101p\u0101rliecin\u0101s par diviem punktiem:<\/p>\n

1) Piepildiet s\u016bk\u0146a korpusu ar \u016bdeni, lai rad\u012btu vakuumu;<\/p>\n

2) aizb\u012bdnis uz izpl\u016bdes caurules ir j\u0101aizver, lai s\u016bknis neveidotu pl\u016bsmu, kas var samazin\u0101t motora palai\u0161anas str\u0101vu un atvieglot s\u016bk\u0146a vienm\u0113r\u012bgu palai\u0161anu. S\u016bknim start\u0113jot vienm\u0113r\u012bgi, aizb\u012bd\u0146a v\u0101rsts ir j\u0101atver l\u0113ni un laikus.<\/p>\n

Centrb\u0113dzes s\u016bknis pace\u013c \u016bdeni, izmantojot vakuuma s\u016bkn\u0113\u0161anu, ko rada l\u0101psti\u0146rite\u0146a centrb\u0113dzes sp\u0113ks. T\u0101p\u0113c, iedarbinot centrb\u0113dzes s\u016bkni, vispirms ir j\u0101nosl\u0113dz izpl\u016bdes v\u0101rsts un j\u0101piepilda \u016bdens. Pirms centrb\u0113dzes s\u016bk\u0146a iedarbin\u0101\u0161anas \u016bdens l\u012bmenim ir j\u0101p\u0101rsniedz l\u0101psti\u0146rite\u0146a da\u013ca un j\u0101izlai\u017e centrb\u0113dzes s\u016bkn\u012b eso\u0161ais gaiss. P\u0113c iedarbin\u0101\u0161anas ap l\u0101psti\u0146riteni veidojas vakuums, kas ies\u016bc \u016bdeni uz aug\u0161u, un tas var autom\u0101tiski atv\u0113rties, lai paceltu \u016bdeni. T\u0101p\u0113c vispirms ir j\u0101nosl\u0113dz izpl\u016bdes v\u0101rsts.<\/p>\n

2. Par centrb\u0113dzes s\u016bkni<\/p>\n

Centrb\u0113dzes s\u016bknis ir l\u0101psti\u0146s\u016bknis, kas darbojas ar rot\u0113jo\u0161u l\u0101psti\u0146rati. Rot\u0101cijas proces\u0101 l\u0101psti\u0146u un \u0161\u0137idruma mijiedarb\u012bbas d\u0113\u013c l\u0101psti\u0146as nodod meh\u0101nisko ener\u0123iju \u0161\u0137idrumam, kas palielina \u0161\u0137idruma spiedienu un sasniedz \u0161\u0137idruma transport\u0113\u0161anas m\u0113r\u0137i. Centrb\u0113dzes s\u016bk\u0146a darb\u012bbai ir \u0161\u0101das \u012bpa\u0161\u012bbas:<\/p>\n

1\uff09Normas augstumam, ko rada centrb\u0113dzes s\u016bknis ar noteiktu \u0101trumu, ir ierobe\u017eota v\u0113rt\u012bba. Darba punkta caurpl\u016bdums un v\u0101rpstas jauda ir atkar\u012bga no s\u016bknim pievienot\u0101s ier\u012b\u010du sist\u0113mas apst\u0101k\u013ciem (st\u0101vok\u013ca starp\u012bba, spiediena starp\u012bba un zudumi cauru\u013cvad\u0101). Spr\u016bds main\u0101s l\u012bdz ar pl\u016bsmas \u0101trumu.<\/p>\n

2) Stabila darb\u012bba, nep\u0101rtraukta pieg\u0101de, nav pl\u016bsmas un spiediena puls\u0101ciju.<\/p>\n

3) parasti nav pa\u0161ies\u016bkn\u0113\u0161anas sp\u0113jas, pirms s\u016bk\u0146a darb\u012bbas uzs\u0101k\u0161anas tas ir j\u0101piepilda ar \u0161\u0137idrumu vai j\u0101iztuk\u0161o cauru\u013cvads.<\/p>\n

4) Centrb\u0113dzes s\u016bk\u0146i tiek iedarbin\u0101ti ar sl\u0113gtu izpl\u016bdes cauru\u013cvada v\u0101rstu, bet virpu\u013cs\u016bk\u0146i un aksi\u0101l\u0101s pl\u016bsmas s\u016bk\u0146i tiek iedarbin\u0101ti ar piln\u012bb\u0101 atv\u0113rtu v\u0101rstu, lai samazin\u0101tu palai\u0161anas jaudu.<\/p>\n

 <\/p>\n

\"20250627145030\"<\/p>\n

Pirms s\u016bk\u0146a iedarbin\u0101\u0161anas s\u016bk\u0146a korpuss tiek piepild\u012bts ar transport\u0113jamo \u0161\u0137idrumu; p\u0113c iedarbin\u0101\u0161anas l\u0101psti\u0146rati tiek darbin\u0101ts ar v\u0101rpstu, lai grieztos ar lielu \u0101trumu, un \u0161\u0137idrumam starp l\u0101psti\u0146\u0101m ar\u012b j\u0101grie\u017eas kop\u0101 ar to. Darbojoties centrb\u0113dzes sp\u0113kam, \u0161\u0137idrums no l\u0101psti\u0146rite\u0146a centra tiek izmests uz \u0101r\u0113jo malu un ieg\u016bst ener\u0123iju, ar lielu \u0101trumu atst\u0101jot l\u0101psti\u0146rite\u0146a \u0101r\u0113jo malu un non\u0101kot vol\u016btas s\u016bk\u0146a korpus\u0101.<\/p>\n

Vul\u016bt\u0113 \u0161\u0137idrums pal\u0113nin\u0101s, jo pl\u016bsmas kan\u0101ls pak\u0101peniski papla\u0161in\u0101s, un da\u013ca kin\u0113tisk\u0101s ener\u0123ijas tiek p\u0101rv\u0113rsta statisk\u0101 spiediena ener\u0123ij\u0101, un visbeidzot ar liel\u0101ku spiedienu iepl\u016bst izpl\u016bdes caurul\u0113 un tiek nos\u016bt\u012bts uz vajadz\u012bgo vietu. Kad \u0161\u0137idrums pl\u016bst no l\u0101psti\u0146rite\u0146a centra uz \u0101r\u0113jo malu, l\u0101psti\u0146rite\u0146a centr\u0101 veidojas zin\u0101ms vakuums. T\u0101 k\u0101 spiediens virs \u0161\u0137idruma virsmas uzglab\u0101\u0161anas tvertn\u0113 ir liel\u0101ks par spiedienu s\u016bk\u0146a iepl\u016bdes atver\u0113, \u0161\u0137idrums nep\u0101rtraukti tiek iespiests l\u0101psti\u0146rit\u0113. Ir redzams, ka, kam\u0113r vien l\u0101psti\u0146ritenis grie\u017eas, \u0161\u0137idrums nep\u0101rtraukti tiek ies\u016bkts un izvad\u012bts.<\/p>","protected":false},"excerpt":{"rendered":"

When starting a centrifugal pump, you need to pay attention to a lot of things. Should you close the outlet valve when starting a centrifugal pump? The answer is that you need to close it! 1: Why should the outlet valve be closed when starting a centrifugal pump? When the centrifugal water pump is started, […]<\/p>","protected":false},"author":4,"featured_media":1509,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/posts\/1505"}],"collection":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/comments?post=1505"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/posts\/1505\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/media\/1509"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/media?parent=1505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/categories?post=1505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/lv\/wp-json\/wp\/v2\/tags?post=1505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}