Thevalve pachipatandi valavu yodziwika bwino yomwe imagwiritsidwa ntchito mosiyanasiyana. Amagwiritsidwa ntchito makamaka posungira madzi, zitsulo ndi mafakitale ena. Kugwiritsa ntchito kwake kwakukulu kwadziwikazyolembedwa ndi msika. Kwa zaka zambiri za kuyang'anira khalidwe ndi luso lapamwamba ndi kuyesa, wolemba sanangopanga kafukufuku wokhudzana ndi kuzindikira kwa valve ya pakhomo, komanso kugwiritsa ntchito valavu yachipata, ndakhala ndikufufuza mosamala komanso mosamala.
Zotsatirazi ndizokambirana zambiri za kapangidwe kake, kugwiritsa ntchito, kuthetsa mavuto, kuyang'anitsitsa khalidwe ndi zina za valve yachipata.
Kapangidwe
Mapangidwe avalve pachipata: Ndivalve pachipatandi avalavuyomwe imagwiritsa ntchito mbale yachipata ndi mpando wa valve kuwongolera kutsegula ndi kutseka. Thevalve pachipatamakamaka amakhala ndi valavu thupi, mpando valavu, mbale pachipata, tsinde valavu, valavu chivundikirocho, kalata kunyamula, kulongedza chivundikiro kukakamiza, valve tsinde nati, dzanja-gudumu, etc. Malingana ndi kusintha kwa malo achibale pakati pa chipata ndi mpando wa valve, kukula kwa njira kungasinthidwe ndipo njirayo ikhoza kudulidwa. Kuti mutseke valavu yachipata mwamphamvu, mbale ya pakhomo ndi mpando wa valve ndi pansi.
Malinga ndi mawonekedwe osiyanasiyana a kamangidwe ka valve pachipata, valavu yachipata ikhoza kugawidwa m'magulu awiri: wedge ndi ofanana.
Chipinda cha chipata cha valavu ya chipata cha wedge chili mu mawonekedwe, ndipo malo osindikizira amatsatiridwa pamzere wapakati wa njira. Mphepete pakati pa mbale yachipata ndi mpando wa valve umagwiritsidwa ntchito kusindikiza (kutseka). Mbalame ya wedge ikhoza kukhala chipata chimodzi kapena zipata ziwiri.
Kusindikiza pamwamba pa valavu yachipata chofanana ndi yofanana wina ndi mzake ndi perpendicular kwa mzere wapakati wa njira. Amagawidwa m'mitundu iwiri: njira yotseguka komanso yosatsegula. Pali zipata ziwiri zokhala ndi makina otseguka. Chipata chikatsika, ma wedges a zipata ziwiri zofanana amathandizira zipata ziwiri pampando wa valve pamtunda ndikudula njira yotuluka. Pamene chipata chikukwera ndikutsegula, fosholo ndi chipata zimagwirizana ndi chipata zimalekanitsidwa, chipatacho chimakwera pamtunda wina, ndipo mpheroyo imagwiridwa ndi con The double gate plate popanda njira yotseguka. Pamene mbale ya pachipata imalowa pampando wa valve pampando wa valve ziwiri zofanana, kuthamanga kwa madzi kumagwiritsidwa ntchito kukanikiza mbale ya pachipata pa thupi la valve kumbali ya valve kuti asindikize madzi.
Malinga ndi kayendedwe kosiyanasiyana kwa tsinde la valve pamene chipata chimatsegulidwa ndi kutsekedwa, valavu yachipata imagawidwa m'magulu awiri: valavu yachipata chotsegula ndi valve yamdima yamdima. Pamene tsinde la valavu ndi mbale ya chipata cha valve yotseguka-bar ya chipata imatsegulidwa kapena kutsekedwa, amadzuka ndikugwa nthawi yomweyo; pamene valavu yachipata chamdima imatsegulidwa kapena kutsekedwa, tsinde la valve limangozungulira, kukwera ndi kugwa kwa tsinde la valve sikungathe kuwonedwa, ndipo mbale ya valve imakwezedwa kapena kutsika. Ubwino wa valavu yachipata chotseguka ndikuti imatha kuweruza kutalika kwa njirayo kudzera pakukwera kwa tsinde la valve, koma imatha kufupikitsa kutalika kwake. Mukayang'ana pa dzanja-gudumu kapena chogwirira, tembenuzirani dzanja-gudumu kapena chogwirira mozungulira, ndipo valavu imatsekedwa.
Nthawi ndi mfundo yosankhidwa yogwiritsira ntchito valve yachiwiri yachipata:
01 pawovalve pachipata
Kugwiritsa ntchito valve ya flat gate:
(1) Mafuta ndi gasi kufala mapaipi, mavavu lathyathyathya zipata ndi mabowo apatutsidwa ndi yabwino kuyeretsa mapaipi.
(2) Mapaipi otumizira ndi zida zosungira mafuta oyengedwa.
(3) Zida zamadoko zamafuta ndi gasi.
(4) Mapaipi okhala ndi media yoyimitsidwa.
(5) Paipi yotumizira gasi m’tauni.
(6) Ntchito yopezera madzi.
Mfundo yosankhidwa ya valve ya flat gate:
(1) Pamapaipi otumizira mafuta ndi gasi, sankhani mavavu a zipata zathyathyathya okhala ndi zipata chimodzi kapena zipata ziwiri. Ngati mukufuna kuyeretsa mapaipi, sankhani valavu yachipata chathyathyathya chokhala ndi chipata chimodzi chokhala ndi bowo lolowera.
(2) Papaipi yotumizira ndi zida zosungiramo mafuta oyengedwa, sankhani chipata chimodzi chopanda bowo kapena valavu yachipata chokhala ndi zipata ziwiri.
(3) Pazida zochotsera mafuta ndi gasi, sankhani chipata chimodzi chokhala ndi mpando wa valavu woyandama wa ndodo yakuda yokhala ndi dzenje losokoneza kapena valavu yachipata chathyathyathya yokhala ndi zipata ziwiri.
(4) Kwa mapaipi okhala ndi media yoyimitsidwa, sankhani valavu yachipata cha mbale yooneka ngati mpeni.
(5) Pamapaipi otumizira gasi m'tauni, sankhani chipata chimodzi kapena zipata ziwiri zofewa zotsekera ndodo yathyathyathya.
(6) Kuti mupange uinjiniya wamadzi, sankhani mbale imodzi yachipata kapena mbale ziwiri zolowera pachipata popanda dzenje lotsegula ndodo lathyathyathya.
02 gawovalve pachipata
Nthawi zogwirira ntchito za wedge gate valve: Pakati pa mitundu yosiyanasiyana ya ma valve, ma valve a pachipata ndi omwe amagwiritsidwa ntchito kwambiri. Nthawi zambiri imakhala yoyenera kutsegulidwa kwathunthu kapena kutseka kwathunthu, ndipo singagwiritsidwe ntchito powongolera ndi kugwedeza.
Valve ya pachipata cha wedge imagwiritsidwa ntchito m'malo omwe palibe chofunikira kwambiri pakukula kwakunja kwa valavu, ndipo mikhalidwe yogwiritsira ntchito imakhala yovuta. Mwachitsanzo, kwa sing'anga yotentha kwambiri komanso yothamanga kwambiri, pamafunika kuti mbali zotsekedwa ziyenera kusindikizidwa kwa nthawi yayitali.
Nthawi zambiri, pakagwiritsidwe ntchito kapena zofunikira pakusindikiza kodalirika, kuthamanga kwambiri, kudula kwamphamvu (kusiyana kwakukulu), kutsika kwapakati (kusiyana kochepa), phokoso lotsika, dzenje la mpweya ndi zochitika za vaporisation, sing'anga yotentha kwambiri. , kutentha kochepa (kuzizira kwambiri), tikulimbikitsidwa kugwiritsa ntchito valavu yachipata cha puncture. Mwachitsanzo, pali ntchito zambiri m'makampani opanga magetsi, kusungunula mafuta, petrochemical, mafuta akunyanja, uinjiniya wamadzi ndi uinjiniya wochotsa zimbudzi pomanga m'matauni, ndi mafakitale amankhwala.
Mfundo yosankha:
(1) Zofunikira pa mawonekedwe amadzimadzi a valve. Valve yachipata imagwiritsidwa ntchito pazinthu zogwirira ntchito ndi kukana kwakung'ono koyenda, mphamvu yothamanga kwambiri, mawonekedwe abwino oyenda komanso zofunikira zosindikizira.
(2) Kutentha kwakukulu komanso sing'anga yapamwamba kwambiri. Monga ngati nthunzi yothamanga kwambiri, kutentha kwambiri komanso mafuta othamanga kwambiri.
(3) Kutentha kochepa (kuzizira kwambiri) sing'anga. Monga madzi ammonia, madzi haidrojeni, okosijeni wamadzimadzi ndi media zina.
(4) Kuthamanga kochepa komanso kwakukulukukula. Monga mapulojekiti a madzi apampopi ndi ntchito zochotsa zimbudzi.
(5) Malo oyika: sankhani valavu yamdima yachitsulo pamene kutalika kwa unsembe kuli kochepa; sankhani valavu yachipata cha ndodo yotseguka pamene kutalika sikuli kochepa.
(6) Pokhapokha pamene ikhoza kutsegulidwa kwathunthu kapena kutsekedwa kwathunthu, ndipo sichingagwiritsidwe ntchito pakusintha ndi kugwedeza, valavu ya chipata cha puncture ingasankhidwe.
Zolakwika zitatu zofala ndi kukonza
01 Zolakwika zomwe zimachitika kawirikawiri komanso zomwe zimayambitsa mavavu a zipata
Pambuyo pogwiritsira ntchito valavu yachipata, mavuto otsatirawa nthawi zambiri amapezeka chifukwa cha kutentha, kupanikizika, dzimbiri komanso kusuntha kwachibale kwa kukhudzana kulikonse.
(1) Kutayikira: Pali mitundu iwiri, ndiyo kutuluka kunja ndi kutuluka mkati. Kutuluka kunja kwa valavu kumatchedwa kutayikira, ndipo kutayikirako kumakhala kofala mu bokosi lonyamula katundu ndi kugwirizana kwa flange.
Zifukwa za kutayikira kwa bokosi lolongedza katundu: zosiyanasiyana kapena khalidwe la kulongedza sikukwaniritsa zofunikira; kukalamba kwa kunyamula kapena kuvala kwa tsinde la valve; kusungunuka kwa chithokomiro cha chithokomiro; kukanda pamwamba pa tsinde la valve.
Zifukwa zowonongeka pa kugwirizana kwa flange: zinthu kapena kukula kwa gasket sikukwaniritsa zofunikira; ubwino processing wa flange kusindikiza pamwamba ndi osauka; mabawuti olumikizira amamangiriridwa molakwika; kasinthidwe ka mapaipi ndi osayenera, zomwe zimapangitsa kuti pakhale zochulukira zochulukira pamalumikizidwewo.
Zifukwa za kutayikira kwamkati kwa valavu: Kutayikira komwe kumachitika chifukwa cha kutsekedwa kwa valve ndi kutuluka kwamkati, komwe kumachitika chifukwa cha kuwonongeka kwa kusindikiza pamwamba pa valve kapena muzu wosasunthika wa mphete yosindikiza.
(1) Kuwonongeka nthawi zambiri kumakhala dzimbiri la thupi la valve, chivundikiro cha valve, tsinde la valve ndi kusindikiza kwa flange. Kuwonongeka kumachitika makamaka chifukwa cha sing'anga, komanso kutulutsidwa kwa ayoni mu fillers ndi gaskets.
(2) Kukwapula: Kukoka kapena kusenda kwapafupiko kumachitika pamene mbale ya pachipata ndi mpando wa valve zikuyenda pang'onopang'ono pansi pa zovuta zina.
02 Kusamalira valavu yachipata
(1) Kukonzekera kwa kutuluka kwa kunja kwa valve
Mukakanikiza chojambuliracho, bawuti yam'mwamba ya gland iyenera kuyezedwa kuti isapendekeke, ndikusiya mpata wa kukanikiza. Mukakanikiza chodzaza, tsinde la valavu liyenera kutembenuzidwa kuti lipangitse chodzaza kuzungulira yunifolomu ya valavu ndikupewa kupanikizika kuti zisafe, kuti zisakhudze kuzungulira kwa tsinde la valve, kuonjezera kuvala kwa chodzaza, ndikufupikitsa ntchitoyo. moyo. Pamwamba pa tsinde la valavu amakanda, kuti sing'angayo ikhale yosavuta kutulutsa. Iyenera kukonzedwa kuti ichotse zokopa pamwamba pa tsinde la valve musanagwiritse ntchito.
Kwa kutayikira kwa kugwirizana kwa flange, ngati gasket yawonongeka, iyenera kusinthidwa; ngati katundu wa gasket sanasankhidwe bwino, zinthu zomwe zingathe kukwaniritsa zofunikira zogwiritsira ntchito ziyenera kusankhidwa; ngati malo osindikizira a flange ndi olakwika, malo osindikizira a flange ayenera kuchotsedwa ndikusinthidwanso mpaka atayenerera.
Kuphatikiza apo, kumangitsa bwino ma bawuti a flange, kukonza mapaipi moyenera, ndikupewa katundu wowonjezera pa kulumikizana kwa flange kumathandizira kupewa kutayikira pa kulumikizana kwa flange.
(2) Kukonza kutulutsa kwamkati kwa valve
Kukonzekera kwa kutayikira kwamkati ndiko kuthetsa kuwonongeka kwa malo osindikizira ndi kufooka kwa muzu wa mphete yosindikizira (pamene mphete yosindikizira imayikidwa pa mbale ya valve kapena mpando wa valve mwa kukanikiza kapena ulusi). Ngati malo osindikizira amakonzedwa mwachindunji pa thupi la valve ndi mbale ya valve, palibe vuto la mizu yofooka ndi kutayikira.
Pamene malo osindikizira awonongeka kwambiri ndipo malo osindikizira amapangidwa ndi mphete yosindikizira, mphete yakaleyo iyenera kuchotsedwa ndikukhala ndi mphete yatsopano yosindikiza; ngati malo osindikizira amakonzedwa mwachindunji pa thupi la valve, malo osindikizira owonongeka ayenera kuchotsedwa poyamba, ndiyeno mphete yatsopano yosindikizira kapena yokonzedwayo iyenera kuikidwa pamalo atsopano osindikizira. Pamene zokopa, tokhala, akuphwanya, mano ndi zina zolakwika za kusindikiza pamwamba zosakwana 0.05mm, angathe kuthetsedwa ndi akupera.
Muzu wa mphete yosindikizira ukutuluka. Pamene mphete yosindikizira ikanikizidwa ndikukhazikika, lamba wa PTFE kapena utoto woyera wandiweyani ukhoza kuikidwa pansi pa mpando wa valve kapena kusindikiza mphete yosindikizira, ndiyeno kukanikizidwa mu mphete yosindikiza kuti mudzaze muzu wa mphete yosindikiza. Pamene mphete yosindikizira yakhazikitsidwa ndi ulusi, lamba wa PTFE kapena utoto woyera wandiweyani uyenera kuikidwa pakati pa ulusi Kutayikira pakati pa mizere.
(3) Kukonza valavu dzimbiri
Kawirikawiri, thupi la valavu ndi chivundikiro cha valve zimakhala zowonongeka mofanana, pamene tsinde la valve nthawi zambiri limabowola. Pokonza, zowonongazo ziyenera kuchotsedwa poyamba. Kwa tsinde la valavu yokhala ndi maenje otsekera, iyenera kukonzedwa pa lathe kuti ithetse kukhumudwa, kusintha kukhala chodzaza chomwe chili ndi chothandizira kutulutsa kosalekeza, kapena kuyeretsa chodzaza ndi madzi osungunuka kuti muchotse ma ion muzodzaza zomwe zimawononga. pa tsinde la valve.
(4) Kukonza zotupa pamalo osindikizira
Pogwiritsa ntchito valavu, zowonongeka pamtunda wosindikiza ziyenera kutetezedwa momwe zingathere, ndipo torque siyenera kukhala yaikulu kwambiri potseka valve. Ngati abrasions pa kusindikiza pamwamba akhoza kuthetsedwa ndi akupera.
Kuzindikira ma valve anayi a zipata
M'malo amsika omwe alipo komanso zosowa za ogwiritsa ntchito, mavavu a zipata zachitsulo amakhala ndi gawo lalikulu. Monga woyang'anira khalidwe lazinthu, kuwonjezera pa kudziŵa zoyezetsa zamtundu wazinthu, muyeneranso kumvetsetsa bwino za mankhwala omwewo.
01 Maziko oyesera a valve pachipata chachitsulo
Kuzindikira kwa valve pachipata chachitsulo kumatengera mtundu wa GB/T12232-2005 "General valve flange connection iron gate valve".
02 Kuwunika zinthu za valve pachipata chachitsulo
Zimaphatikizapo: logo, * makulidwe ang'onoang'ono a khoma, kuyesa kuthamanga, kuyesa kwa chipolopolo, etc. Pakati pawo, makulidwe a khoma, kuthamanga ndi chipolopolo choyezetsa ndizofunikira kufufuza zinthu ndi zinthu zofunika. Ngati pali zinthu zosayenera, zitha kuweruzidwa mwachindunji ngati zinthu zosayenera.
Mwachidule, kuyang'anira khalidwe la mankhwala ndi gawo lofunikira pakuwunika kwazinthu zonse. Kufunika kwake kumadziwikiratu. Monga oyang'anira kutsogolo, tiyenera kulimbitsa khalidwe lathu nthawi zonse. Sitiyenera kuchita ntchito yabwino poyang'anira katundu, komanso kumvetsetsa zinthu zomwe zayesedwa, kuti tithe kuchita bwino poyang'anira.
Nthawi yotumiza: Mar-23-2023
