D\u00f6kme ta\u015f k\u00fcresel vana, k\u00fcl boru hatt\u0131nda ideal bir a\u00e7ma ve kapama cihaz\u0131d\u0131r ve s\u0131zd\u0131rmazl\u0131\u011f\u0131, vanan\u0131n kalitesini ve servis \u00f6mr\u00fcn\u00fc do\u011frudan etkiler. Ge\u00e7mi\u015fte, O-\u015fekilli kau\u00e7uk conta yap\u0131s\u0131 benimsenmi\u015fti; bu, O-halkan\u0131n \u015faft \u00fczerinde i\u015flenmi\u015f halka olu\u011funa yerle\u015ftirildi\u011fi ve daha sonra contalar aras\u0131ndaki contay\u0131 olu\u015fturmak i\u00e7in man\u015fon par\u00e7alar\u0131 \u00fczerinde i\u015flenmi\u015f deli\u011fe monte edildi\u011fi anlam\u0131na geliyordu. \u015faft ve delik. Bu yap\u0131n\u0131n s\u0131zd\u0131rmazl\u0131k performans\u0131, O-ringin s\u0131k\u0131\u015ft\u0131r\u0131lmas\u0131ndan kaynaklanan giri\u015fime ve delik ve mil par\u00e7alar\u0131n\u0131n i\u015fleme do\u011frulu\u011funa ba\u011fl\u0131d\u0131r. Parazit \u00e7ok k\u00fc\u00e7\u00fckse s\u0131zd\u0131rmazl\u0131k performans\u0131 zay\u0131ft\u0131r. Parazit \u00e7ok b\u00fcy\u00fckse, montaj s\u0131ras\u0131nda O-halkan\u0131n ezilmesi kolayd\u0131r, bu da conta ar\u0131zas\u0131na katk\u0131da bulunur.<\/p>\n\n\n\n
S\u0131zd\u0131rmazl\u0131k yap\u0131s\u0131 basit ve montaj\u0131 kolayd\u0131r. Bununla birlikte, \u015faft\u0131n ve deli\u011fin i\u015fleme do\u011frulu\u011fu y\u00fcksek de\u011filse veya iyile\u015ftirilmesi zor de\u011filse, temel s\u0131zd\u0131rmazl\u0131k performans\u0131n\u0131n garanti edilmesi zordur veya do\u011fruluk daha fazla geli\u015ftirilemez. Ana dezavantaj s\u0131zd\u0131rmazl\u0131k malzemesidir. Bu t\u00fcr s\u0131zd\u0131rmazl\u0131k yap\u0131s\u0131 silindir ve hidrolik silindir i\u00e7in \u00e7ok uygundur. K\u00fcll\u00fc sularda kullan\u0131lan d\u00f6kme ta\u015f k\u00fcresel vanalar\u0131n s\u0131zd\u0131rmazl\u0131k performans\u0131n\u0131 sa\u011flamak zordur. Bunun nedeni, k\u00fcresel vanan\u0131n anahtar\u0131n\u0131n k\u0131smi d\u00f6ner tipte olmas\u0131 ve anahtarlama i\u00e7in genellikle 90 \u00b0 d\u00f6nmesi gerekmesidir. Valf \u00e7ubu\u011fu ile valf g\u00f6vdesi aras\u0131ndaki dinamik uyumdan dolay\u0131 belirli bir bo\u015fluk vard\u0131r. Valf a\u00e7\u0131l\u0131p kapat\u0131ld\u0131\u011f\u0131nda, bilyaya etki eden ortam\u0131n b\u00fcy\u00fck itme kuvveti ka\u00e7\u0131n\u0131lmaz olarak valf \u00e7ubu\u011funun belirli bir dereceye kadar e\u011filmesine neden olur. Valf \u00e7ubu\u011funun kuvvetinin sapt\u0131\u011f\u0131 taraf ciddi \u015fekilde a\u015f\u0131nacakt\u0131r. Ayr\u0131ca k\u00fcl suyunda b\u00fcy\u00fck miktarda ask\u0131da kat\u0131 madde bulunmas\u0131 s\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131 a\u015f\u0131nd\u0131racakt\u0131r. Sonu\u00e7 olarak, valf g\u00f6vdesindeki O-ring'in kullan\u0131m \u00f6mr\u00fc k\u0131sad\u0131r ve s\u0131kl\u0131kla s\u0131z\u0131nt\u0131 meydana gelir, bu da saha ortam\u0131n\u0131 bir dereceye kadar etkiler. Bu nedenle s\u0131zd\u0131rmazl\u0131k yap\u0131s\u0131n\u0131n ve malzemelerinin iyile\u015ftirilmesine karar verilmi\u015ftir. \u0130yile\u015ftirmenin ana \u00e7\u0131k\u0131\u015f noktas\u0131 mil ve delik montaj\u0131ndaki s\u0131k\u0131\u015ft\u0131rma miktar\u0131na g\u00f6re ayarlanabiliyor olmas\u0131d\u0131r. Etkili s\u0131zd\u0131rmazl\u0131k, \u015faft\u0131n ve deli\u011fin i\u015fleme do\u011frulu\u011funu b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131rmadan sa\u011flanabilir.
<\/p>\n\n\n\n
X halkas\u0131 \u00e7evresinde s\u0131zd\u0131rmazl\u0131k y\u00fczeyleri ve s\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131n i\u00e7inde ve d\u0131\u015f\u0131nda ya\u011flama oluklar\u0131 bulunmaktad\u0131r. Bu yap\u0131, d\u00fc\u015f\u00fck kurulum do\u011frulu\u011fu ve iyi kullan\u0131m g\u00fcvenilirli\u011fi ile O-ring'den \u00fcst\u00fcnd\u00fcr. Bak\u0131m gerektirmez ve fiyat\u0131 d\u00fc\u015f\u00fckt\u00fcr. S\u0131k\u0131\u015ft\u0131rma miktar\u0131 conta ile de ayarlanabilir. S\u0131z\u0131nt\u0131y\u0131 etkili bir \u015fekilde \u00f6nleyebilen, vanan\u0131n servis \u00f6mr\u00fcn\u00fc b\u00fcy\u00fck \u00f6l\u00e7\u00fcde uzatabilen ve vanan\u0131n g\u00fcvenilirli\u011fini art\u0131rabilen \u00e7e\u015fitli bas\u0131n\u00e7 derecelerindeki d\u00f6kme ta\u015f vanalar\u0131n s\u0131zd\u0131rmazl\u0131\u011f\u0131nda yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n
X-\u015fekilli s\u0131zd\u0131rmazl\u0131k malzemesi olarak poli\u00fcretan\u0131n (CPU) kullan\u0131lmas\u0131, geleneksel O-\u015fekilli s\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131n sorunlar\u0131n\u0131 etkili bir \u015fekilde \u00e7\u00f6zebilir. D\u00f6k\u00fclebilir poli\u00fcretan uluslararas\u0131 kabul g\u00f6rm\u00fc\u015f bir s\u0131zd\u0131rmazl\u0131k malzemesi t\u00fcr\u00fcd\u00fcr. B\u00fcy\u00fck elastikiyet mod\u00fcl\u00fcne, iyi fiziksel ve mekanik \u00f6zelliklere sahiptir ve b\u00fcy\u00fck darbe y\u00fck\u00fcn\u00fc ta\u015f\u0131yabilir. \u015eu anda, poli\u00fcretan temel olarak hidroliz direnci problemini \u00e7\u00f6zm\u00fc\u015ft\u00fcr ve s\u0131cakl\u0131k direnci de s\u00fcrekli olarak geli\u015ftirilmektedir, bu da poli\u00fcretan\u0131n uygulama alan\u0131n\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde geni\u015fletmektedir. D\u00f6kme poli\u00fcretanl\u0131 X \u015fekilli s\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131n \u00fcretimi, teknoloji a\u00e7\u0131s\u0131ndan basit ve maliyeti d\u00fc\u015f\u00fckt\u00fcr. Bas\u0131n\u00e7 direnci seviyesi 60MPa veya daha y\u00fckse\u011fe ula\u015fabilir ve bas\u0131n\u00e7 koruma etkisi olduk\u00e7a iyidir, temelde s\u0131f\u0131r s\u0131z\u0131nt\u0131ya ula\u015f\u0131r.<\/p>\n\n\n\n
\u00c7al\u0131\u015fma prensibi: C\u0131vatay\u0131 s\u0131karken salmastra a\u015fa\u011f\u0131 do\u011fru hareket ederek ayar contas\u0131na bask\u0131 yapar. V \u015feklindeki salmastra contas\u0131na bas\u0131ld\u0131\u011f\u0131nda, X \u015feklindeki s\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131n i\u00e7 ve d\u0131\u015f dudaklar\u0131, g\u00fcvenilir bir s\u0131zd\u0131rmazl\u0131k sa\u011flamak i\u00e7in ayn\u0131 anda milin s\u0131zd\u0131rmazl\u0131k y\u00fczeyine ve deli\u011fe do\u011fru bast\u0131r\u0131l\u0131r. Ana s\u0131zd\u0131rmazl\u0131k performans\u0131, montaj s\u0131ras\u0131nda c\u0131vatan\u0131n s\u0131kma kuvvetine ba\u011fl\u0131d\u0131r ve \u015faft\u0131n ve deli\u011fin boyutsal do\u011frulu\u011fu ile ilgisi yoktur.<\/p>\n\n\n\n
K\u00fcresel vanan\u0131n bas\u0131nc\u0131na ve kalibresine g\u00f6re paketleme haznesindeki baharat miktar\u0131 belirlenir. Geni\u015flik eksenin boyutuna g\u00f6re belirlenir. 0,6 ~ 2,5MPa ve dn250mm bas\u0131n\u00e7 alt\u0131nda bir X-halkas\u0131 \u00f6nlenecektir; iki x-halkas\u0131 2,5 ~ 10MPa ve DN300 bas\u0131nc\u0131 alt\u0131na yerle\u015ftirilecektir. Paketleme b\u00f6lmesinin boyutu ve derinli\u011fi baharat pedinin, bas\u0131n\u00e7 aktarma halkas\u0131n\u0131n ve X halkas\u0131n\u0131n y\u00fcksekli\u011fine g\u00f6re belirlenir.<\/p>\n\n\n\n
Bas\u0131n\u00e7 aktarma halkas\u0131 y\u00fcksek bas\u0131nca ve geni\u015f \u00e7apa ayarlanm\u0131\u015ft\u0131r. \u0130ki set X-halkal\u0131 conta aras\u0131na monte edilir. Ana i\u015flevi \u00fcst bas\u0131nc\u0131 aktarmak ve X-halkal\u0131 contalar\u0131n stres durumunu de\u011fi\u015ftirmektir. S\u0131zd\u0131rmazl\u0131k performans\u0131n\u0131 elde etmek i\u00e7in X halkas\u0131n\u0131n kuvveti ta\u015f\u0131mas\u0131n\u0131 ve radyal olarak deforme olmas\u0131n\u0131 sa\u011flar.<\/p>\n\n\n\n
X \u015feklindeki conta halkas\u0131, bas\u0131n\u00e7 halkas\u0131 (salmastra contas\u0131) ve destek halkas\u0131 (salmastra yast\u0131\u011f\u0131) ile birlikte kullan\u0131lan dudak tipi bir conta halkas\u0131d\u0131r. Orta s\u0131z\u0131nt\u0131y\u0131 etkili bir \u015fekilde \u00f6nleyebilir.<\/p>\n\n\n\n
X halkas\u0131n\u0131n kuvveti, bas\u0131n\u00e7 halkas\u0131n\u0131n (salmastra salmastras\u0131) bas\u0131nc\u0131 arac\u0131l\u0131\u011f\u0131yla X halkas\u0131na iletilir. S\u0131zd\u0131rmazl\u0131k halkas\u0131n\u0131n alt k\u0131sm\u0131, destek halkas\u0131n\u0131n (paketleme yast\u0131\u011f\u0131) \u00fc\u00e7 noktadan kuvvet uygulama y\u00f6ntemiyle sa\u011flan\u0131r. \u015eaft\u0131n ve valf deli\u011finin s\u0131zd\u0131rmazl\u0131k y\u00fczeyindeki kuvvet e\u015fittir, bu da daha iyi bir s\u0131zd\u0131rmazl\u0131k etkisi sa\u011flayabilir.<\/p>\n\n\n\n
\u0130yile\u015ftirme sayesinde valf yap\u0131s\u0131 daha makul ve s\u0131zd\u0131rmazl\u0131k daha g\u00fcvenilir hale geldi. Hammadde tasarrufu sa\u011flayabilir, maliyetleri azaltabilir, hizmet \u00f6mr\u00fcn\u00fc uzatabilir ve kullan\u0131c\u0131lar\u0131n ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131layabilir.<\/p>\n\n\n\n\n