Kusankha kwa ma valve pagalimoto, kuti muphunzire njira yothetsera kutayikira kwa valve
Kusankhidwa kwa mawonekedwe a valve kumatengera:
1) mtundu wa valve, mawonekedwe ndi kapangidwe.
2) mphindi yotsegulira ndi kutseka kwa valve (kuthamanga kwa payipi, kusiyana kwakukulu kwa valve), kukankhira.
3) Fananizani kutentha kozungulira ndi kutentha kwamadzimadzi.
4) Mode ndi pafupipafupi ntchito.
5) Kutsegula ndi kutseka liwiro ndi nthawi.
6) tsinde m'mimba mwake, wononga mphindi, mayendedwe kasinthasintha.
7) Connection mode.
8) Mphamvu gwero magawo: magetsi magetsi voteji, gawo nambala, pafupipafupi; Pneumatic mpweya gwero kuthamanga; Ma hydraulic medium pressure.
9) Kuganizira mwapadera: kutentha kochepa, anti-corrosion, kuphulika-umboni, madzi, kuteteza moto, chitetezo cha radiation, etc.
Pazida zonse zoyendetsera ma valve, zida zamagetsi ndi mafilimu ndizomwe zimagwiritsidwa ntchito kwambiri. Zipangizo zamagetsi zimagwiritsidwa ntchito makamaka pazitsulo zotsekedwa; Wowonda filimu pneumatic chipangizo zimagwiritsa ntchito valavu ulamuliro. Electromagnetic drive imagwiritsidwa ntchito makamaka pama valve ang'onoang'ono awiri. Ma bellows ophatikizidwa amagwiritsidwa ntchito makamaka mu mavavu a disk stroke ndi media zowononga komanso zapoizoni. Koma kagwiritsidwe ntchito kake kaŵirikaŵiri kamakhala kochepa ndi chipangizo chothandizira choyendetsa ndege chomwe chimayang'anira kufala kwakukulu.
Chofunikira chapadera pakuchita ma valve ndikutha kuchepetsa torque kapena mphamvu ya axial. Chipangizo chamagetsi cha vavu chimagwiritsa ntchito ma torque oletsa ma couplings. Pazida zama hydraulic ndi pneumatic drive, mphamvu yachibale imatengera gawo logwira mtima la diaphragm kapena piston komanso kukakamiza kwa sing'anga yoyendetsa. Kasupe angagwiritsidwenso ntchito kuchepetsa mphamvu yogwiritsidwa ntchito.
Njira zothetsera kutayikira kwa valve
Kutayikira kwa valavu kwakhala chimodzi mwazinthu zazikulu zotayikira mu chipangizocho, chifukwa chake ndikofunikira kwambiri kuwongolera kuthekera koletsa kutayikira kwa valavu, kupewa kutayikira kwa valve, kuyenera kudziwa zambiri za magawo osindikiza a valve kuti mupewe kutayikira kwa media -- valavu. kusindikiza, ichi ndiye chofunika kwambiri.
Kusindikiza ndikuteteza kutayikira, kotero mfundo yosindikiza ma valve ndikuletsanso kufufuza kwa kutayikira. Pali zinthu ziwiri zazikulu zomwe zimayambitsa kutayikira, chimodzi ndi chofunikira kwambiri chomwe chimakhudza ntchito yosindikiza, ndiko kuti, pali kusiyana pakati pa awiri osindikiza, chinacho pali kusiyana kwapakati pakati pa mbali ziwiri za kusindikiza.
Mfundo yosindikizira ma valve imachokeranso ku kusindikiza kwamadzimadzi, kusindikiza kwa gasi, mfundo yosindikizira njira yotayira ndi kusindikiza ma valve ndi zina zinayi zowunikira.
1. Kulimba kwamadzimadzi
Kulimba kwamadzimadzi kumatsimikiziridwa ndi kukhuthala kwake komanso kugwedezeka kwamadzi. Pamene valavu yothamanga ya capillary yadzazidwa ndi mpweya, kuthamanga kwa pamwamba kungathe kuthamangitsa kapena kutulutsa madzi mu capillary. Ndipo izo zimapanga tangent Ngongole. Pamene tangent Angle ili yosakwana 90 °, madziwo amalowetsedwa mu chubu cha capillary, ndipo kutuluka kumachitika.
Chifukwa cha kutayikira chagona zosiyanasiyana katundu wa sing'anga. Yesani ndi zofalitsa zosiyanasiyana, pansi pa chikhalidwe chomwecho, mudzapeza zotsatira zosiyana. Mukhoza kugwiritsa ntchito madzi, mpweya, palafini, etc. Pamene tangent Angle ndi wamkulu kuposa 90 °, kutayikira kudzachitikanso.
Chifukwa cha ubale ndi mafuta kapena sera filimu pa zitsulo pamwamba. Mafilimu apamwambawa akasungunuka, mawonekedwe achitsulo amasintha, ndipo madzi, omwe poyamba adakanidwa, amanyowetsa pamwamba ndi kutuluka. Poganizira zomwe zili pamwambazi, malinga ndi dongosolo la Poisson, cholinga chopewa kutayikira kapena kuchepetsa kutayikira chingathe kukwaniritsidwa pansi pa kuchepetsa kukula kwa capillary ndi viscosity yapakatikati.
2. Kuthina kwa gasi
Malinga ndi chilinganizo cha Poisson, kulimba kwa gasi kumagwirizana ndi ma molekyulu a mpweya ndi kukhuthala kwa gasi. Kutayikira kumayenderana mosiyanasiyana ndi kutalika kwa capillary ndi kukhuthala kwa mpweya, komanso molingana ndi kukula kwa capillary ndi mphamvu yoyendetsa. Pamene kukula kwa capillary ndi madigiri ambiri a ufulu wa mamolekyu a gasi ali ofanana, ma molekyulu a mpweya adzalowa mu capillary ndi kuyenda kwaufulu kwamafuta.
Choncho, tikamayesa kusindikiza ma valve, sing'anga iyenera kukhala madzi kuti igwire ntchito yosindikiza, ndi mpweya kapena mpweya sungathe kugwira ntchito yosindikiza.
Ngakhale titachepetsa kukula kwa capillary pansi pa molekyulu ya gasi ndi mapindikidwe apulasitiki, kutuluka kwa mpweya sikungaimitsidwebe. Chifukwa chake ndi chakuti gasi amathabe kufalikira kudzera m'makoma achitsulo. Chifukwa chake tikayesa gasi, tikuyenera kukhala okhwima kuposa kuyesa kwamadzi.
3. Kusindikiza mfundo ya kutayikira njira
Chisindikizo cha valve chimapangidwa ndi magawo awiri, roughness, yomwe imapangidwa ndi kukhwima kwa kusalinganika komwe kumafalikira pamtunda wa waveform ndi kuyendayenda kwa mtunda pakati pa nsonga. Pokhala kuti mphamvu zotanuka zazinthu zambiri zazitsulo ndizochepa m'dziko lathu, tikuyenera kukweza zofunikira za kukakamiza kwazitsulo zazitsulo, ndiko kuti, mphamvu yopondereza yazinthu iyenera kupitirira kusungunuka kwake, ngati tikufuna kukwaniritsa dziko losindikiza. Choncho, pakupanga valavu, awiri osindikizira amaphatikizana ndi kusiyana kolimba kuti agwirizane.
4. Mavavu osindikizira awiri
The valve seal pair ndi gawo la mpando wa valve ndi shutoff yomwe imatseka pamene ikukhudzana. Chitsulo chosindikizira pamwamba chimakhala chowonongeka kuchokera ku clamping media, media corrosion, kuvala particles, cavitation ndi kukokoloka pakagwiritsidwa ntchito.
Mwachitsanzo, valani tinthu tating'onoting'ono, ngati tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono tating'onoting'ono, pomwe malo osindikizira amayendetsedwa, kulondola kwapamwamba kudzakhala bwino, ndipo sikudzakhala koyipa. M'malo mwake, zidzapangitsa kulondola kwapamwamba kwambiri. Chifukwa chake, pakusankhidwa kwa tinthu tating'onoting'ono, zinthu, mawonekedwe ogwirira ntchito, zokometsera ndi dzimbiri za malo osindikizira ziyenera kuganiziridwa mozama. Monga tinthu tating'onoting'ono, tikamasankha zisindikizo, tiyenera kuganizira mozama zinthu zosiyanasiyana zomwe zimakhudza magwiridwe antchito awo kuti tigwire ntchito yoletsa kutayikira. Chifukwa chake, zida zomwe zimalimbana ndi dzimbiri, abrasion ndi kukokoloka ziyenera kusankhidwa. Kupanda kutero, kusowa kwa chilichonse mwazofunikira kumapangitsa kuti ntchito yake yosindikiza ** ichepe.
Pali zinthu zambiri zomwe zimakhudza chisindikizo cha valve, makamaka izi:
1. Kusindikiza chowonjezera kapangidwe
Pansi pa kusintha kwa kutentha kapena mphamvu yosindikiza, mawonekedwe a awiri osindikiza adzasintha. Ndipo kusintha kumeneku kudzakhudza ndikusintha kusindikiza kusindikiza pakati pa mphamvu, kotero kuti ntchito ya chisindikizo cha valve imachepetsedwa.
Choncho, posankha zisindikizo, tiyenera kusankha zisindikizo ndi zotanuka deformation. Pa nthawi yomweyo, tcherani khutu m'lifupi mwa kusindikiza pamwamba. Chifukwa chake ndi chakuti kukhudzana pamwamba pa kusindikiza sikugwirizana kwathunthu. Pamene m'lifupi mwake kusindikiza pamwamba kumawonjezeka, m'pofunika kuonjezera mphamvu yofunikira yosindikiza.
2. Kuthamanga kwapadera kwa kusindikiza pamwamba
Kupanikizika kwapadera kwa malo osindikizira kumakhudza ntchito yosindikiza komanso moyo wautumiki wa valve.
Choncho, kusindikiza pamwamba kusindikiza ndi chinthu chofunika kwambiri. Pazifukwa zomwezo, kupanikizika kwapadera kwambiri kungayambitse kuwonongeka kwa valve, koma kupanikizika kochepa kwambiri kumayambitsa kuvunda kwa valve. Choncho, tiyenera kuganizira mozama kupanikizika kwapadera pakupanga koyenera.
3. Thupi katundu wa sing'anga
Zakuthupi za sing'anga zimakhudzanso ntchito yosindikiza ma valve. Zinthu zakuthupi izi zimaphatikizapo kutentha, mamasukidwe akayendedwe, ndi hydrophilicity pamwamba.
Kusintha kwa kutentha sikumangokhudza kumasuka kwa awiri osindikiza komanso kukula kwa zigawozo, komanso kumakhala ndi chiyanjano chosagwirizana ndi kukhuthala kwa mpweya. Kukhuthala kwa mpweya kumawonjezeka kapena kutsika ndi kuwonjezeka kapena kuchepa kwa kutentha.
Choncho, kuti tichepetse kutentha kwa kutentha pa ntchito yosindikiza ya valve, tiyenera kupanga awiri osindikizira mu mpando wosinthika ndi ma valve ena okhala ndi chiwongoladzanja cha kutentha.
4. Ubwino wa awiri osindikiza
Chisindikizo khalidwe makamaka amatanthauza kusankha zipangizo, kufanana, kupanga zolondola pa cheke. Mwachitsanzo, chimbale chimagwirizana bwino ndi nkhope yosindikiza mpando kuti ikhale yolimba. Mawonekedwe a ma corrugations ochulukirapo ndikuti ntchito yake yosindikiza labyrinth ndi yabwino.
Nthawi yotumiza: Aug-18-2022
