Ntchito ndi Kukonzanso Buku la ma Valves a Pazipata

2.4 Zigawo Zazikulu ndi Zida

DZINA	ZOTHANDIZA
Thupi / Bonnet	WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M
Geti	WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M
Mpando	A105, LF2, F11, F22, F304, 304L, F316 ndi 316L,
Tsinde	F304 （304L） 、 F316 （316L 、 2Cr13 mafuta1Cr13
Kulongedza	Kuluka graphite & Ololera graphite & PTFE etc.
Bolt / Mtedza	35 / 25、35CrMoA / 45
Bokosi	304 （316 Graph + Graphite / 304 （316） + Gasket
MpandoMphete / chimbale/ Kusindikiza	13Cr, 18Cr-8Ni, 18Cr-8Ni-Mo, PP, PTFE, STL etc

 

3. Kusunga & Kukonza & Kuyika & Ntchito

3.1 Kusunga & Kukonza

3.1.1 Mavavu amayenera kusungidwa m'nyumba. Zomalizirazo zimayikidwa ndi pulagi.

3.1.2 Kuyendera kwakanthawi ndi chilolezo kumafunika kwa mavavu omwe amasungidwa nthawi yayitali, makamaka pakusindikiza pamwamba. Palibe kuwonongeka komwe kumaloledwa. Coating kuyanika kwamafuta kumafunsidwa kuti mupewe dzimbiri lapanja.

3.1.3 Ponena za kusungitsa valavu kuposa miyezi 18, kuyesedwa kumafunikira asanaikidwe valavu ndikulemba zotsatira zake.

3.1.4 Ma Valves amayenera kuwunikidwa nthawi ndi nthawi ndikusamalidwa atayika. Mfundo zazikuluzikulu ndi monga pansipa:

1, Kusindikiza pamwamba

2, tsinde ndi tsinde mtedza

3, atanyamula

4, Internal kuyeretsa pamwamba pa Thupi ndi Bonnet.

3.2 Kuyika

3.2.1 Onaninso zolemba za valavu (Mtundu, DN, Mavoti, Zolemba) zomwe zimagwirizana ndi zolemba zomwe zikufunsidwa ndi mapaipi.

3.2.2 Kutsuka kwathunthu kwa zibowo ndi kusindikiza pamwamba kumafunsidwa asanayike valavu.

3.2.3 Onetsetsani kuti mabotolo ndi olimba musanakhazikitsidwe.

3.2.4 Onetsetsani kuti kulongedza kuli kolimba musanakhazikike. Komabe, sayenera kusokoneza kayendedwe ka tsinde.

3.2.5 Malo a Valve ayenera kukhala oyenera kuyendera ndi kugwira ntchito. Chopingasa payipi chimasankhidwa. Sungani dzanja lanu ndikutsamira.

3.2.6 Kwa valavu yotsekedwa, siyabwino kuyikidwa munthawi yovuta kwambiri yogwira ntchito. Tsinde liyenera kupewedwa kuti lisawonongeke.

3.2.7 Pogwiritsa ntchito valavu yowotcherera zitsulo, chidwi chimafunsidwa mukalumikiza valavu monga izi:

1, Welder ayenera mbiri yabwino.

2, kuwotcherera ndondomeko chizindikiro ayenera kukhala malinga ndi satifiketi wachibale kuwotcherera chuma.

3, pongotayira zinthu za mzere wowotcherera, mankhwala ndi magwiridwe antchito limodzi ndi anti-dzimbiri ziyenera kukhala zofanana ndi zakuthupi za kholo.

3.2.8 Kuyika ma Valve kuyenera kupewa kuthamanga kuchokera kuziphatikizi kapena mapaipi.

3.2.9 Pambuyo pokonza, ma valve ayenera kukhala otseguka pakuyesa kwa mapaipi.

3.2.10 Malo Othandizira: ngati chitolirocho chili cholimba mokwanira kuthandizira kulemera kwa valavu ndi makokedwe ogwirira ntchito, malo othandizira safunsidwa. Apo ayi amafunika.

Kukweza kwa 3.2.11: Kukweza magudumu pamanja sikuloledwa pamagetsi.

Ntchito ndi Kugwiritsa Ntchito

Ma 3.3.1 mavavu apachipata ayenera kukhala otseguka kwathunthu kapena otsekedwa pakagwiritsidwe ntchito kuti apewe mphete yosindikiza mipando ndi disc yomwe imayambitsidwa ndi liwiro lapakati. Sangathe kumangidwa pamalamulo oyenda.

3.3.2 Gudumu lamanja liyenera kugwiritsidwa ntchito m'malo mwa zida zina kutsegula kapena kutseka mavavu

3.3.3 Pakatentha kovomerezeka, nthawi yomweyo kuthamanga kumayenera kukhala kotsika poyerekeza ndi kuthamanga kwa ASME B16.34

3.3.4 Palibe kuwonongeka kapena kunyanyala komwe kumaloledwa poyendetsa valavu, kukhazikitsa ndi kugwira ntchito.

3.3.5 Kuyeza chida kuti muwone kuyenda kosakhazikika kumafunsidwa kuti muwongolere ndikuchotsa chowola kuti mupewe kuwonongeka kwa valavu ndi kutayikira.

3.3.6 Kuzizira kumakhudza magwiridwe antchito a valavu, ndipo zida zoyezera ziyenera kugwiritsidwa ntchito pochepetsa kutentha kapena kusintha valavu.

3.3.7 Pazida zophulika, gwiritsani ntchito zida zoyezera kuti mutsimikizire mozungulira ndikugwira ntchito musapitirire poyatsira (makamaka kuwala kwa dzuwa kapena moto wakunja).

3.3.8 Pakakhala madzi owopsa, monga zophulika, zotupa, poizoni, zopangira makutidwe ndi okosijeni, ndizoletsedwa kuti zisinthe kulongedza pakukakamizidwa. Mulimonsemo, ngati mwadzidzidzi, sizikulimbikitsidwa kuti musinthe kulongedza mokakamiza (ngakhale valavu ili ndi ntchito yotere).

3.3.9 Onetsetsani kuti madzimadzi siodetsedwa, omwe amakhudza magwiridwe antchito, osaphatikizapo zolimba, kupatula zida zoyesera zoyenera kugwiritsidwa ntchito kuchotsa dothi ndi zolimba zolimba, kapena kulowetsa ndi mtundu wina wa valavu.

3.3.10 Kugwiritsa ntchito kutentha

Zakuthupi	Kutentha	Zakuthupi	Kutentha
WCB	-29 ～ 425 ℃	WC6	-29 ～ 538 ℃
LCB	-46 mpaka 343 ℃	WC9	--29 ～ 570 ℃
Zamgululi	-196 mpaka 454 ℃	Zamgululi	-196 mpaka 454 ℃

3.3.11 Onetsetsani kuti thupi la valavu ndiloyenera kugwiritsidwa ntchito mu dzimbiri losagwira dzimbiri ndi dzimbiri poteteza malo amadzimadzi.

3.3.12 Munthawi yautumiki, yang'anani momwe mwasindikizira magwiridwe antchito monga tebulo lili pansipa:

Malo oyendera	Kutayikira
Kulumikizana pakati pa thupi la valavu ndi bonnet ya valavu	Zero
Atanyamula chisindikizo	Zero
Mpando wamagetsi wamagetsi	Malinga ndi luso

3.3.13 Nthawi ndi nthawi fufuzani ngati mitengo yakunyamulira yayamba kuvala, kulongedza ukalamba ndi kuwonongeka.

3.3.14 Mukakonza, phatikizaninso ndikusintha valavu, kenako yesani magwiridwe antchito ndikupanga mbiri.

4. Mavuto omwe angakhalepo, zoyambitsa ndi njira zothetsera mavuto

Kufotokozera kwamavuto	Zomwe zingayambitse	Njira zothandizira
Kutayikira pakunyamula	Kulongedza mosakwanira	Limbikitsaninso mtedza wazolongedza
	Kuchuluka kokwanira	Onjezani kulongedza kwina
	Kuwonongeka kolongedza chifukwa chantchito yayitali kapena chitetezo chosayenera	Bwezerani kulongedza
Kutayikira pampando wokhala ndi valavu	Nkhope yakuda	Chotsani dothi
	Nkhope yokhala ndi nkhope	Konzani kapena sinthani mphete yamipando kapena mbale ya valavu
	Malo owonongeka okhala ndi zolimba zolimba	Chotsani zolimba zolimba mumadzimadzi, bwezerani mphete kapena mpando wa valavu, kapena sinthanitsani ndi mtundu wina wa valavu
Kutayikira kulumikizana pakati pa thupi la valavu ndi bonnet ya valavu	Mabotolo samamangiriridwa bwino	Momwemonso zolumikizira
	Zowonongeka za bonnet zosindikiza nkhope ya valavu thupi ndi valavu flange	Konzani
	Gasket lowonongeka kapena losweka	Bwezerani gasket
Kusinthasintha kovuta kwa gudumu lamanja kapena mbale ya valavu sikungatsegulidwe kapena kutsekedwa.	Kulongedza mwamphamvu kwambiri	Moyenera kumasula mtedza wolongedza
	Kusintha kapena kupindika kwa chisindikizo	Sinthani kusindikiza kwa England
	Kuwonongeka mtedza tsinde vavu	Konzani ulusi ndikuchotsani zodetsazo
	Chingwe cha mtedza wovulala kapena chosweka	Bwezerani mtedza wothandizira
	Tsinde la valve yopindika	Bwezerani tsinde la valavu
	Dothi lotsogolera pamwamba pa mbale ya valve kapena thupi la valve	Chotsani dothi pamalo owongolera

Chidziwitso: Munthu wothandizira ayenera kukhala ndi chidziwitso chofunikira ndi zokumana nazo ndi mavavu Valve yosindikiza madzi

Kulongedza kwa bonnet ndikosindikiza kwamadzi, kudzapatulidwa kuchokera kumlengalenga pomwe kuthamanga kwa madzi kumafikira ku 0.6 ~ 1.0MP kuti mutsimikizire magwiridwe antchito a mpweya.

5. Chitsimikizo:

Valve itayamba kugwiritsidwa ntchito, nthawi ya valavu ndi miyezi 12, koma siyidutsa miyezi 18 kuchokera tsiku lobereka. Pakati pa nthawi ya chitsimikizo, wopanga amapereka ntchito yokonza kapena zida zina zaulere kwaulere pazowonongeka chifukwa chakuthupi, kapangidwe kake kapena kuwonongeka ngati ntchitoyi ndi yolondola.