Ivhavha yekumisa inonyanya kushandiswa kugadzirisa uye kumisa mvura inoyerera nepapombi. Vanosiyana nemavharuvhu akadaibhora mavharuvhuuye mavharuvhu egedhi pakuti iwo akanyatsogadzirirwa kudzora kuyerera kwemvura uye haana kuganhurirwa kumasevhisi ekuvhara. Chikonzero nei vharuvhu yekumisa ichidanwa kudaro ndechekuti dhizaini yakare inopa imwe denderedzwa uye inogona kukamurwa kuita mahemispheres maviri, akaparadzaniswa ne equator, uko kuyerera kunochinja kwakananga. Zvinhu chaizvo zvemukati zvechigaro chekuvhara kazhinji hazvina denderedzwa (semuenzaniso, mavharuvhu ebhora) asi anowanzo kurongeka, hemispherical, kana plug shaped. Mavharuvhu egorobhu anorambidza kuyerera kwemvura zvakanyanya kana akavhurika kupfuura gedhi kana mavharuvhu ebhora, zvichikonzera kudonha kwepamusoro kuburikidza nawo. Globe mavharuvhu ane matatu makuru masisitimu emuviri, mamwe ayo anoshandiswa kudzikisa kudonha kwekumanikidza kuburikidza nevhavha. Kuti uwane rumwe ruzivo nezve mamwe mavharuvhu, ndapota tarisa kune yedu valve buyer's Guide.

Valve design

Stop valve inoumbwa nezvikamu zvitatu zvikuru: muviri wevharuvhu nechigaro, valve disc uye stem, kurongedza uye bonnet. Mukushanda, tenderedza hunde yakarukwa kuburikidza nevhiri remaoko kana kuti valve actuator kusimudza vharafu disc kubva pachigaro chevharuvhu. Nzira yemvura kuburikidza nevhavha ine nzira yakaita Z kuitira kuti mvura igone kubata musoro wevhavha disc. Izvi zvakasiyana nemavharuvhu egedhi apo iyo fluid iri perpendicular kune gedhi. Kugadziriswa uku dzimwe nguva kunotsanangurwa semuviri wevharuvhu wakaita Z kana T-shaped valve. Iyo yekupinza uye yekubuda inopindirana pamwe chete.

Mamwe magadzirirwo anosanganisira makona uye Y-yakaita mapatani. Mukona yekumisa vharafu, chinobuda chiri 90 ° kubva pakupinda, uye mvura inoyerera ichitevedza nzira yakaita L. Muchigadziro chemuviri weY-shaped kana Y-shaped valve, tsinde yevharuvhu inopinda mukati memuviri wevhavha pa45 °, apo iyo inopinza uye yekubuda inoramba iri mumutsara, yakafanana neyomutatu-nzira mode. Kupokana kweangular pattern kuyerera kuduku kudarika kweT-shaped pattern, uye kushorwa kweY-shaped pattern iduku. Three way mavharuvhu ndiwo anonyanyozivikanwa pamhando nhatu idzi.

Iyo yekuisa chisimbiso disc inowanzotapirwa kuti ikwane chigaro chevharuvhu, asi flat disc inogona kushandiswa zvakare. Kana vharuvhu ichivhurwa zvishoma, mvura inoyerera yakaenzana yakapoteredza dhisiki, uye kupfeka kugoverwa pachigaro chevhavha uye disc. Nokudaro, valve inoshanda zvinobudirira kana kuyerera kwakaderera. Kazhinji, nzira yekuyerera iri kudivi revhavha yevhavha, asi munzvimbo yepamusoro-yekushisa (steam), kana muviri wevhavha uchitonhora uye uchiita zvibvumirano, kuyerera kunowanzo dzokera kumashure kuchengetedza dhisiki yevhavha yakavharwa zvakasimba. Ivhavha inogona kugadzirisa nzira yekuyerera kushandisa kumanikidza kubatsira kuvhara (kuyerera pamusoro pe diski) kana kuzarura (kuyerera pasi pe diski), zvichiita kuti valve irege kukundikana kuvhara kana kukundikana kuzarura.

Iyo yekuisa chisimbiso dhisiki kana plug inowanzo kutungamirwa kusvika kuchigaro chevharuvhu kuburikidza nekeji kuti ive nechokwadi chekubata kwakaringana, kunyanya mu-high-pressure application. Mamwe magadzirirwo anoshandisa chigaro chevharuvhu, uye chisimbiso padivi revharuvhu redhisiki redhisiki rinosangana nechigaro chevharuvhu kuti risunungure kudzvanywa pakurongedzerwa kana vharuvhu yavhurwa zvizere.

Zvinoenderana nedhizaini yechinhu chekuisa chisimbiso, vharafu yekumisa inogona kukurumidza kuvhurwa nekutendeuka kwakati wandei kwevharuvhu kuti ikurumidze kutanga kuyerera (kana kuvharwa kumisa kuyerera), kana kuvhurwa zvishoma nezvishoma nekutenderera kwakawanda kwevhavha hunde kuti ibudise zvimwe. kudzora kuyerera kuburikidza nevhavha. Kunyange zvazvo mapulagi dzimwe nguva achishandiswa sezvinhu zvekuisa chisimbiso, haafanire kuvhiringika nemavharuvhu epuragi, ari maquarter turn devices, akafanana nemavharuvhu ebhora, anoshandisa mapulagi panzvimbo yemabhora kumira uye kutanga kuyerera.

application

Misa mavharuvhuanoshandiswa kuvhara uye kudzora zvidyarwa zvekuchenesa mvura, zvidyarwa zvemagetsi uye zvidyarwa zvekugadzira. Iwo anoshandiswa mumapombi eutsi, maseketi anotonhorera, masisitimu ekuzora, nezvimwewo, umo kudzora huwandu hwemvura inopfuura nemavharuvhu kunoita basa rakakosha.

Kusarudzwa kwezvinhu zveglobe valve body inowanzokandwa simbi kana ndarira / bhuronzi mune yakaderera kumanikidza maapplication, uye yakaumbwa kabhoni simbi kana simbi isina tsvina mukumanikidza kwakanyanya uye tembiricha. Izvo zvakatsanangurwa zvemuviri wevhavha kazhinji zvinosanganisira zvese zvinomanikidza zvikamu, uye "trim" inoreva zvikamu zvisiri zvemuviri wevharuvhu, kusanganisira chigaro chevharuvhu, disc uye stem. Saizi yakakura inotarwa neiyo ASME kirasi yekumanikidza kirasi, uye akajairwa mabhaudhi kana welding flanges anorairwa. Kukura mavharuvhu epasi kunotora simba rakawanda pane kuyera mamwe marudzi emavharuvhu nekuti kudonha kwekumanikidza kuyambuka vharafu kunogona kuve dambudziko.

Rising stem dhizaini ndiyo inonyanya kuzivikanwa mukatikumisa mavharuvhu, asi asiri kusimuka stem mavharuvhu anogona kuwanikwa zvakare. Bhoneti inowanzovharidzirwa uye inogona kubviswa nyore nyore panguva yekuongorora kwemukati kwevhavha. Chigaro chevharuvhu uye disc zviri nyore kutsiva.

Mavharuvhu ekumisa anowanzo otomatiki achishandisa pneumatic piston kana diaphragm actuators, ayo anoita zvakananga pahunde yevharuvhu kufambisa dhisiki munzvimbo. Iyo piston / diaphragm inogona kuve yakarerekera muchirimo kuvhura kana kuvhara vharafu pakurasikirwa kwemhepo. An electric rotary actuator inoshandiswawo.