Kugwiritsa Ntchito ndi Kukonza Buku la ma Valves a Chipata Chitsulo

1. Zazonse

Mavavu amtunduwu amagwiritsidwa ntchito kutseka kapena kutsegula mapaipi mu mapaipi kuti ntchito isayende bwino.

2. Mafotokozedwe Akatundu

Chofunikira cha 2.1

2.1.1 Kupanga ndi kupanga: API600, API603, ASME B16.34, BS1414

2.1.2 Mapeto olumikizira: ASME B16.5, ASME B16.47, ASME B16.25

2.1.3 Maso ndi nkhope kapena kumapeto mpaka kumapeto: ASME B16.10

2.1.4 Kuyendera ndi kuyesa: API 598 、 API600

Makulidwe amitundu 2.1.5: MPS2 ″ ～ 48 ″, Mavoti apadera mwanjira: Class150 ～ 2500

2.2 mavavu zino ndi Buku (actuated mwa handwheel kapena zida bokosi) mavavu chipata ndi malekezero flange ndi mapeto mbuyo kuwotcherera mapeto. Vavu tsinde chimayenda vertically. Mukatembenuza chozungulira cha mawoko mozungulira, chipatacho chimagwa pansi kutseka payipiyo; mukatembenuza mawilo kuti musadutsane ndi wotchi, chipatacho chimakwera kuti chitsegule payipi.

2.3 Mapangidwe ake amawona Mkuyu 1, 2and3.

2.4 Mayina ndi zida zamagawo akulu zalembedwa mu Gulu 1.

Gulu 1）

3. Kusunga, kukonza, Kuyika ndikugwira ntchito

3.1 Kusunga ndi kukonza

3.1.1 Mavavu ayenera kusungidwa m'chipinda chouma komanso chopumira mpweya wabwino. Mapeto a ndimeyi ayenera kulumikizidwa ndi zokutira.

3.1.2 Mavavu omwe amasungidwa kwanthawi yayitali amayenera kuyesedwa ndikuyeretsedwa pafupipafupi, makamaka kuyeretsa malo okhala kuti zisaonongeke, ndipo malo omalizidwa azikhala okutidwa ndi dzimbiri loletsa mafuta.

3.1.3 Ngati nthawi yosungira idutsa miyezi 18, mavavu amayenera kuyesedwa ndikujambula.

3.1.4 Ma valve oyika ayenera kuwunikidwa ndikukonzedwa pafupipafupi. Mfundo zazikuluzikulu zokonzera zinthu ndi izi:

1) Kusindikiza nkhope

2) Valavu ya tsinde ndi valavu.

3) Kulongedza.

4) Kudetsa pamtunda wamkati mwa thupi la valavu ndi bonnet ya valavu

3.2 Kuyika

Musanakhazikike, onetsetsani kuti chizindikiritso cha valavu (monga mtundu, DN, 3.2.1PN ndi zinthu) chimadziwika malinga ndi zofunikira za mapaipi.

3.2.2 Musanakhazikitsidwe, yang'anani mosamala valavu ndikusindikiza nkhope. Ngati pali dothi, yeretsani bwinobwino.

3.2.3 Musanakhazikitsidwe, onetsetsani kuti mabatani onse amangiriridwa mwamphamvu.

3.2.4 Musanakhazikitsidwe, onetsetsani kuti kulongedza kumapanikizidwa mwamphamvu. Komabe, kuyenda kwa tsinde la valavu sikuyenera kusokonezedwa.

3.2.5 Kukhazikitsa kwa valavu kuyenera kuyang'anira kuyendera ndi kugwira ntchito. Malo omwe akuyenera kukhala akuti payipi ndiyopingasa, mawilo am'mwamba ali pamwamba, ndipo tsinde la valavu ndilowongoka.

3.2.6 Kwa valavu yotsekedwa nthawi zonse, siyabwino kuyiyika pamalo pomwe kuthamanga kwa magwiridwe antchito kuli kwakukulu kwambiri kuti mupewe kuwonongeka kwa tsinde la valavu.

Ma 3.2.7 ma waya otsekemera azikhala ndi zofunikira izi akalumikizidwa kuti ayikepo mapaipi patsamba:

1) Kuwotcherera kuyenera kuchitidwa ndi wowotcherera yemwe ali ndi satifiketi yoyenerera ya welder yovomerezeka ndi State Boiler and Pressure Vessel Authority; kapena wowotcherera amene wapeza satifiketi yoyenerera ya wowotcherera yotchulidwa mu ASME Vol.Ⅸ.

2) Njira zamagetsi zowotcherera ziyenera kusankhidwa monga zafotokozedwera m'buku lazokutsimikizirani zakuthupi.

3) Kupangika kwamankhwala, magwiridwe antchito komanso kukana kwazitsulo kwazitsulo zazitsulo zosungunuka ziyenera kukhala zogwirizana ndi chitsulo.

3.2.8 Valve nthawi zambiri imayikidwa, kupanikizika kwakukulu chifukwa cha zothandizira, zowonjezera ndi mapaipi ayenera kupewedwa.

3.2.9 Pambuyo pokonza, poyesa kupanikizika kwa mapaipi, valavu iyenera kutsegulidwa kwathunthu.

3.2.10 Malo okuthandizani: ngati payipi ili ndi mphamvu zokwanira kunyamula kulemera kwa valavu ndi makokedwe ogwirira ntchito, ndiye kuti palibe mfundo yofunikira, apo ayi valavu iyenera kukhala ndi mfundo.

3.2.11 Kukweza: osagwiritsa ntchito chopukutira m'manja kukweza ndi kukweza valavu.

3.3 Ntchito ndi ntchito

3.3.1 Pakati pa nthawi yantchito, chipata cha valavu chimayenera kutsegulidwa kwathunthu kapena kutsekedwa kwathunthu kuti zisawonongeke pamwamba pa mphete ya mpando ndi chipata cha valavu chifukwa chothamanga kwambiri. Sizingagwiritsidwe ntchito kusintha kuchuluka kwa mayendedwe.

3.3.2 Mukatsegula kapena kutseka valavu, gwiritsani ntchito chopukutira dzanja m'malo mwa lever wothandizira kapena gwiritsani ntchito chida china.

3.3.3 Pakugwira ntchito kutentha, onetsetsani kuti kupsinjika kwakanthawi kumakhala kotsika poyerekeza ndi 1.1 nthawi zomwe kuthamanga kwa magwiridwe antchito kutentha-kutentha mu ASME B16.34.

3.3.4 Zipangizo zachitetezo ziyenera kukhazikitsidwa paipiipi kuti zisawonongeke kuthamanga kwa valavu pantchito yotentha kuti isapitirire kuthamanga kwakukulu kololeza.

3.3.5 Kukwapula ndi kugwedeza valavu sikuletsedwa panthawi yoyendera, kukhazikitsa ndi kugwiranso ntchito.

3.3.6 Kuwonongeka kwamadzimadzi osakhazikika, mwachitsanzo, kuwonongeka kwa madzi ena kumatha kubweretsa kufutukuka kwa voliyumu ndikupangitsa kukwera kwa magwiridwe antchito, kuwononga valavu ndikupangitsa kudzaza, chifukwa chake, gwiritsani ntchito zida zoyesera zoyenera kuti muchepetse kapena kuwononga zinthu zomwe zingayambitse kuwonongeka zamadzimadzi.

3.3.7 Ngati madzimadzi ndi condensate, izi zimakhudza magwiridwe antchito a valve, gwiritsani ntchito zida zoyesera zoyenera kuti muchepetse kutentha kwa madzi (mwachitsanzo, kutsimikizira kutentha kwamadzimadzi) kapena kusinthitsa mtundu wina wa valavu.

3.3.8 Padzimadzi lotha kudzigwiritsa ntchito, gwiritsani ntchito zida zoyezera kuti mutsimikizire mozungulira ndikugwira ntchito musapitirire poyatsira (makamaka kuwala kwa dzuwa kapena moto wakunja).

3.3.9 Pakakhala madzi owopsa, monga kuphulika, kupsa. Mankhwala owopsa, makutidwe ndi okosijeni, saloledwa kutulutsa paketi pansi pamavuto (ngakhale valavu ili ndi ntchito yotere).

3.3.10 Onetsetsani kuti madzimadzi siodetsedwa, omwe amakhudza magwiridwe antchito, mulibe zolimba zolimba, apo ayi zida zoyenera zoyezera ziyenera kugwiritsidwa ntchito kuchotsa dothi ndi zolimba zolimba, kapena kusinthana ndi valavu yamtundu wina.

3.3.11 Kutentha kovomerezeka:

3.3.12 Onetsetsani kuti zinthu za thupi la valavu ndizoyenera kugwiritsidwa ntchito poyambitsa dzimbiri komanso dzimbiri.

3.3.13 Munthawi yautumiki, yang'anani ntchito zosindikiza malinga ndi tebulo ili pansipa:

3.3.14 Nthawi ndi nthawi fufuzani kuvala kwa nkhope yosindikiza. Atanyamula ukalamba ndi kuwonongeka. Konzani kapena m'malo mwa nthawi ngati umboni wapezeka.

3.3.15 Mukakonza, phatikizaninso ndikusintha valavu, mayesedwe oyeserera ndikupanga mbiri.

3.3.16 Kuyesa ndikukonzanso mkati ndizaka ziwiri.

4. Mavuto omwe angakhalepo, zoyambitsa ndi njira zothetsera mavuto

Chidziwitso: Wothandizira ayenera kukhala ndi chidziwitso chofunikira ndi chidziwitso pamavavu.

5. Chitsimikizo

Valve itayamba kugwiritsidwa ntchito, nthawi ya valve ya valve ndi miyezi 12, koma siyidutsa miyezi 24 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.