{"id":4302,"date":"2021-12-29T07:10:15","date_gmt":"2021-12-29T07:10:15","guid":{"rendered":"https:\/\/zecovalve.com\/how-the-gate-valve-works.html"},"modified":"2022-08-20T03:00:03","modified_gmt":"2022-08-20T03:00:03","slug":"how-the-gate-valve-works","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/tr\/how-the-gate-valve-works.html","title":{"rendered":"S\u00fcrg\u00fcl\u00fc Vanalar Nas\u0131l \u00c7al\u0131\u015f\u0131r?"},"content":{"rendered":"

T\u00fcm vanalar, bir proses ak\u0131\u015fkan\u0131n\u0131n ak\u0131\u015f\u0131n\u0131 durdurmak, buna izin vermek veya k\u0131smak i\u00e7in tasarlanm\u0131\u015ft\u0131r. Orijinal vana tasar\u0131mlar\u0131ndan biri olan s\u00fcrg\u00fcl\u00fc vanalar, ba\u015fta s\u0131v\u0131 olmak \u00fczere a\u00e7ma-kapama i\u015flemleri i\u00e7in idealdir. S\u00fcrg\u00fcl\u00fc vana, dikd\u00f6rtgen veya dairesel bir kap\u0131y\u0131 s\u0131v\u0131n\u0131n yolundan kald\u0131rarak \u00e7al\u0131\u015f\u0131r. Vana tamamen a\u00e7\u0131k oldu\u011funda s\u00fcrg\u00fcl\u00fc vanalar tam ge\u00e7i\u015flidir, yani kapak ve boru hatt\u0131 \u00e7ap\u0131 ayn\u0131 a\u00e7\u0131kl\u0131\u011fa sahip oldu\u011fundan ak\u0131\u015f\u0131 engelleyecek hi\u00e7bir \u015fey yoktur. Bu delik \u00e7ap\u0131 ayn\u0131 zamanda valf boyutunu da belirler. Bu tam ge\u00e7i\u015fli tasar\u0131m\u0131n bir avantaj\u0131, enerji tasarrufu sa\u011flayan ve toplam sahip olma maliyetini azaltan \u00e7ok d\u00fc\u015f\u00fck s\u00fcrt\u00fcnme kayb\u0131d\u0131r.<\/p>\n\n\n\n\n\n

S\u00fcrg\u00fcl\u00fc Vana Nedir?<\/h2>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana, medya ak\u0131\u015f\u0131n\u0131 durdurmak veya izin vermek i\u00e7in tasarlanm\u0131\u015f do\u011frusal end\u00fcstriyel vana ailesinin bir \u00fcyesidir. Bu valf, bulama\u00e7 gibi daha kal\u0131n par\u00e7ac\u0131klar i\u00e7eren ortamlar\u0131 kesebilen kama benzeri bir disk ile \u00e7ift y\u00f6nl\u00fcd\u00fcr. Kapatma hareketi, vanay\u0131 a\u00e7mak i\u00e7in kaman\u0131n yukar\u0131ya veya kapatmak i\u00e7in a\u015fa\u011f\u0131ya do\u011fru hareket ettirilmesiyle sa\u011flan\u0131r.<\/p>\n\n\n\n

\u00c7o\u011fu kesme vanas\u0131nda oldu\u011fu gibi, s\u00fcrg\u00fcl\u00fc vanan\u0131n kapasitesi s\u0131n\u0131rl\u0131 da olsa k\u0131sma i\u00e7in kullan\u0131lmas\u0131 tavsiye edilmez. Kama kap\u0131s\u0131, hareketli ortam\u0131n titre\u015fiminden kaynaklanan hasara olduk\u00e7a yatk\u0131nd\u0131r.<\/p>\n\n\n

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\"Bas\u0131n\u00e7<\/figure>\n<\/div>\n\n\n

nas\u0131l S\u00fcrg\u00fcl\u00fc Vanalar<\/a><\/mark><\/strong> \u0130\u015f?<\/h2>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vanan\u0131n a\u00e7ma ve kapama k\u0131sm\u0131 kap\u0131d\u0131r, kap\u0131n\u0131n hareket y\u00f6n\u00fc ak\u0131\u015fkan\u0131n y\u00f6n\u00fcne diktir, s\u00fcrg\u00fcl\u00fc vana sadece tam a\u00e7\u0131k ve tam kapal\u0131 olabilir, ayarlanamaz ve k\u0131s\u0131lamaz. <\/p>\n\n\n\n

Kap\u0131n\u0131n iki s\u0131zd\u0131rmazl\u0131k y\u00fczeyi vard\u0131r. En s\u0131k kullan\u0131lan s\u00fcrg\u00fcl\u00fc vanalar\u0131n iki s\u0131zd\u0131rmazl\u0131k y\u00fczeyi bir kama \u015fekli olu\u015fturur. Kama a\u00e7\u0131s\u0131 vana parametrelerine g\u00f6re de\u011fi\u015fir, genellikle 5\u00b0, ortam s\u0131cakl\u0131\u011f\u0131 y\u00fcksek olmad\u0131\u011f\u0131nda ise 2\u00b052'dir. Kama s\u00fcrg\u00fcl\u00fc vanan\u0131n kap\u0131s\u0131, sert kap\u0131 ad\u0131 verilen bir b\u00fct\u00fcn halinde yap\u0131labilir; ayn\u0131 zamanda i\u015flenebilirli\u011fini geli\u015ftirmek ve i\u015fleme s\u0131ras\u0131nda s\u0131zd\u0131rmazl\u0131k y\u00fczeyi a\u00e7\u0131s\u0131ndaki sapmay\u0131 telafi etmek i\u00e7in az miktarda deformasyon \u00fcretebilen bir kap\u0131ya da d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir. Plakaya yay kap\u0131s\u0131 denir. <\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana kapat\u0131ld\u0131\u011f\u0131nda, s\u0131zd\u0131rmazl\u0131k y\u00fczeyi yaln\u0131zca ortam\u0131n bas\u0131nc\u0131yla kapat\u0131labilir, yani, s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin s\u0131zd\u0131rmazl\u0131\u011f\u0131n\u0131 sa\u011flamak i\u00e7in kap\u0131n\u0131n s\u0131zd\u0131rmazl\u0131k y\u00fczeyi di\u011fer taraftaki valf yuvas\u0131na do\u011fru bast\u0131r\u0131l\u0131r. kendili\u011finden s\u0131zd\u0131rmazd\u0131r. <\/p>\n\n\n\n

\u00c7o\u011fu s\u00fcrg\u00fcl\u00fc vana zorla kapat\u0131l\u0131r, yani vana kapat\u0131ld\u0131\u011f\u0131nda, s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin s\u0131k\u0131l\u0131\u011f\u0131n\u0131 sa\u011flamak i\u00e7in kap\u0131, harici bir kuvvet taraf\u0131ndan vana yuvas\u0131na do\u011fru bast\u0131r\u0131lmaya zorlan\u0131r. S\u00fcrg\u00fcl\u00fc valfin kap\u0131s\u0131, a\u00e7\u0131k kollu s\u00fcrg\u00fcl\u00fc valf olarak da bilinen, kald\u0131rma kollu s\u00fcrg\u00fcl\u00fc valf olarak adland\u0131r\u0131lan valf g\u00f6vdesi ile do\u011frusal olarak hareket eder. Genellikle kald\u0131rma \u00e7ubu\u011funun \u00fczerinde trapez di\u015f bulunur. Valfin \u00fcst k\u0131sm\u0131ndaki somun ve valf g\u00f6vdesindeki k\u0131lavuz oluk, d\u00f6nme hareketini do\u011frusal harekete d\u00f6n\u00fc\u015ft\u00fcr\u00fcr, yani \u00e7al\u0131\u015fma torku, \u00e7al\u0131\u015fma itme kuvvetine d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr. Vana a\u00e7\u0131ld\u0131\u011f\u0131nda, kapa\u011f\u0131n kald\u0131rma y\u00fcksekli\u011fi vanan\u0131n vana \u00e7ap\u0131n\u0131n 1:1'ine e\u015fit oldu\u011funda ak\u0131\u015fkan kanal\u0131 tamamen a\u00e7\u0131l\u0131r ancak \u00e7al\u0131\u015fma s\u0131ras\u0131nda bu konum izlenemez. Ger\u00e7ek kullan\u0131mda valf g\u00f6vdesinin tepe noktas\u0131, yani a\u00e7\u0131lamayan konum, tamamen a\u00e7\u0131k konum olarak i\u015faret olarak kullan\u0131l\u0131r. S\u0131cakl\u0131k de\u011fi\u015fikliklerinden dolay\u0131 kilitleme olgusunu dikkate almak i\u00e7in, genellikle \u00fcst konuma kadar a\u00e7\u0131l\u0131r ve ard\u0131ndan tamamen a\u00e7\u0131k vana konumu olarak 1\/2-1 d\u00f6n\u00fc\u015fe kadar geri d\u00f6ner. Bu nedenle vanan\u0131n tam a\u00e7\u0131k konumu, panjurun konumu yani stroku ile belirlenir. Baz\u0131 s\u00fcrg\u00fcl\u00fc vanalarda g\u00f6vde somunu, s\u00fcrg\u00fcl\u00fc plakan\u0131n \u00fczerine yerle\u015ftirilmi\u015ftir. El \u00e7ark\u0131, valf g\u00f6vdesinin d\u00f6nmesini sa\u011flamak \u00fczere d\u00f6ner ve kap\u0131 plakas\u0131 kald\u0131r\u0131l\u0131r. Bu t\u00fcr vanalara d\u00f6ner kollu s\u00fcrg\u00fcl\u00fc vana veya koyu kollu s\u00fcrg\u00fcl\u00fc vana denir.<\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vanan\u0131n \u00e7al\u0131\u015fmas\u0131<\/h2>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana di\u011fer vanalara benzer \u015fekilde \u00e7al\u0131\u015f\u0131r. Valf\u0131 a\u00e7mak i\u00e7in, kap\u0131y\u0131 (G) di\u015fler arac\u0131l\u0131\u011f\u0131yla g\u00f6vde (B) \u00fczerinde yukar\u0131 veya a\u015fa\u011f\u0131 hareket ettiren el \u00e7ark\u0131n\u0131 (A) \u00e7evirin. Bir s\u00fcrg\u00fcl\u00fc vanan\u0131n, vanay\u0131 tamamen a\u00e7mak veya kapatmak i\u00e7in birden fazla 360\u00b0 d\u00f6n\u00fc\u015f yapmas\u0131 gerekir. Kapak kald\u0131r\u0131ld\u0131\u011f\u0131nda, giri\u015fi \u00e7\u0131k\u0131\u015fa a\u00e7arak medyan\u0131n ak\u0131\u015f\u0131 i\u00e7in engelsiz bir ge\u00e7i\u015f yolu sa\u011flar. Kap\u0131 indirildi\u011finde kapan\u0131r ve medya ak\u0131\u015f\u0131n\u0131 engeller.<\/p>\n\n\n\n

Kap\u0131n\u0131n dikey hareketi ile ak\u0131\u015f h\u0131z\u0131 aras\u0131ndaki ili\u015fki, bir s\u00fcrg\u00fcl\u00fc vana i\u00e7in do\u011frusal de\u011fildir ve en b\u00fcy\u00fck de\u011fi\u015fiklikler neredeyse tamamen kapanmada meydana gelir. Ak\u0131\u015f\u0131 d\u00fczenlemek i\u00e7in kullan\u0131ld\u0131\u011f\u0131nda, k\u0131smi a\u00e7\u0131lmadaki ak\u0131\u015f\u0131n nispeten y\u00fcksek h\u0131z\u0131, kapak ve yata\u011f\u0131n a\u015f\u0131nmas\u0131na neden olur, bu da kap\u0131n\u0131n olas\u0131 titre\u015fimleriyle birlikte vanan\u0131n servis \u00f6mr\u00fcn\u00fc k\u0131salt\u0131r. Bu nedenle s\u00fcrg\u00fcl\u00fc vana yaln\u0131zca a\u00e7ma\/kapama kontrol\u00fc i\u00e7in kullan\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana \u00c7al\u0131\u015ft\u0131rma Y\u00f6ntemi<\/h2>\n\n\n\n

\u00dc\u00e7 ana tip s\u00fcrg\u00fcl\u00fc vana \u00e7al\u0131\u015ft\u0131rma y\u00f6ntemi vard\u0131r:<\/p>\n\n\n\n

Manuel giri\u015f valfi<\/a><\/mark><\/strong>: Bir manuel s\u00fcrg\u00fcl\u00fc vana, \u015eekil 3'te g\u00f6sterildi\u011fi gibi, vanay\u0131 a\u00e7mak veya kapatmak i\u00e7in manuel olarak d\u00f6nd\u00fcr\u00fclen bir el \u00e7ark\u0131na sahiptir. Bu, bir kullan\u0131c\u0131n\u0131n sahada \u00e7ark\u0131 d\u00f6nd\u00fcrmesini gerektirir. Manuel s\u00fcrg\u00fcl\u00fc vana en ekonomik olan\u0131d\u0131r, \u00f6zellikle de s\u00fcrg\u00fcl\u00fc vanalar\u0131n kurulumundan sonra kullan\u0131m\u0131 genellikle d\u00fc\u015f\u00fck oldu\u011fundan.<\/p>\n\n\n\n

Pn\u00f6matik giri\u015f valfi<\/a><\/mark><\/strong>: Pn\u00f6matik s\u00fcrg\u00fcl\u00fc vana, el \u00e7ark\u0131 yerine pn\u00f6matik bir akt\u00fcat\u00f6r kullan\u0131r. Bas\u0131n\u00e7l\u0131 hava kullanarak akt\u00fcat\u00f6r, kap\u0131y\u0131 kald\u0131rmak veya indirmek i\u00e7in g\u00f6vdeyi d\u00f6nd\u00fcrebilir. Bu, sahada hi\u00e7bir kullan\u0131c\u0131 olmadan uzaktan \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131na olanak tan\u0131r ancak sahada bir pn\u00f6matik sistem gerektirir.<\/p>\n\n\n\n

Elektrikli s\u00fcrg\u00fcl\u00fc vana<\/mark><\/a><\/strong>: Elektrikli s\u00fcrg\u00fcl\u00fc vanada el \u00e7ark\u0131 yerine elektrik motoru kullan\u0131l\u0131r. Akt\u00fcat\u00f6r, elektrik g\u00fcc\u00fcn\u00fc kullanarak kap\u0131y\u0131 kald\u0131rmak veya indirmek i\u00e7in g\u00f6vdeyi d\u00f6nd\u00fcr\u00fcr. Bu, sahada hi\u00e7bir kullan\u0131c\u0131 olmadan uzaktan \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131na olanak tan\u0131r ancak sahada elektrik g\u00fcc\u00fc gerektirir. Bunlara ayr\u0131ca \u015fu adlar da verilir: motorlu s\u00fcrg\u00fcl\u00fc vana<\/a><\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc Vana Hareketi<\/h2>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana kapat\u0131ld\u0131\u011f\u0131nda, s\u0131zd\u0131rmazl\u0131k y\u00fczeyi yaln\u0131zca orta bas\u0131n\u00e7la, yani yaln\u0131zca orta z41h flan\u015f kamal\u0131 s\u00fcrg\u00fcl\u00fc vanan\u0131n bas\u0131nc\u0131yla kapat\u0131labilir. . \u00c7o\u011fu s\u00fcrg\u00fcl\u00fc vana zorla kapat\u0131l\u0131r, yani vana kapat\u0131ld\u0131\u011f\u0131nda, s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin s\u0131k\u0131l\u0131\u011f\u0131n\u0131 sa\u011flamak i\u00e7in kap\u0131, d\u0131\u015f kuvvet taraf\u0131ndan vana yuvas\u0131na do\u011fru bast\u0131r\u0131lmaya zorlan\u0131r. Hareket modu: S\u00fcrg\u00fcl\u00fc vanan\u0131n kap\u0131s\u0131, a\u00e7\u0131k \u00e7ubuklu s\u00fcrg\u00fcl\u00fc vana olarak da bilinen vana sap\u0131 ile do\u011frusal olarak hareket eder. Kald\u0131rma \u00e7ubu\u011funun \u00fczerinde genellikle trapez di\u015f bulunur. Valfin \u00fcst k\u0131sm\u0131ndaki somun [] ve valf g\u00f6vdesindeki k\u0131lavuz oluk, d\u00f6nme hareketini do\u011frusal harekete d\u00f6n\u00fc\u015ft\u00fcr\u00fcr, yani \u00e7al\u0131\u015fma torku, \u00e7al\u0131\u015fma itme kuvvetine d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr. Vana a\u00e7\u0131ld\u0131\u011f\u0131nda, kapa\u011f\u0131n kald\u0131rma y\u00fcksekli\u011fi vana \u00e7ap\u0131n\u0131n 1:1'ine e\u015fit oldu\u011funda ak\u0131\u015fkan kanal\u0131 tamamen a\u00e7\u0131kt\u0131r ancak \u00e7al\u0131\u015fma s\u0131ras\u0131nda bu konum izlenemez. S\u0131cakl\u0131k de\u011fi\u015fikliklerinden dolay\u0131 kilitleme olgusunu dikkate almak i\u00e7in, genellikle \u00fcst konuma kadar a\u00e7\u0131l\u0131r ve ard\u0131ndan tamamen a\u00e7\u0131k vana konumu olarak 1\/2-1 d\u00f6n\u00fc\u015fe kadar geri d\u00f6ner. Bu nedenle vanan\u0131n tamamen a\u00e7\u0131k konumu, kap\u0131n\u0131n konumuna (yani strok>) g\u00f6re belirlenir. Baz\u0131 s\u00fcrg\u00fcl\u00fc vana g\u00f6vdesi somunlar\u0131 kap\u0131n\u0131n \u00fczerinde bulunur ve el \u00e7ark\u0131, vana g\u00f6vdesini d\u00f6nd\u00fcrmek i\u00e7in tahrik etmek \u00fczere d\u00f6ner ve Kap\u0131 kald\u0131r\u0131ld\u0131\u011f\u0131nda buna d\u00f6ner kollu s\u00fcrg\u00fcl\u00fc vana veya karanl\u0131k kollu s\u00fcrg\u00fcl\u00fc vana denir.<\/p>\n\n\n\n\n