He aha te Bellow Seal Globe Valve: Te Aratohu Tino Pai

Te Mārama ki ngā Takirere Porowhita Hiri o raro

Hetakirere porowhita hiri rarohe takirere kati motuhake i hangaia hei whakakore i te turuturu o te kakau i roto i ngā tono nui. He rerekē ki ngā takirere porowhita tuku iho, ka whakamahia he huihuinga pupuhi whakarewa kua whakapirihia ki te kakau me te tinana takirere, ka hanga he hiri ā-hiri. He mea nui tēnei hoahoa mō te whakahaere i ngā pāpāho paitini, waikura, teitei-parakore rānei i ngā wāhi kāore e whakaaetia ngā tukunga rerenga.

Ngā Wāhanga Matua o ngā Takirere Porowhita Hiri o raro

1. Te Huihuinga o ngā Pūwero

• Rauemi:Kowiri tira (SS316/316L), Inconel 625, Hastelloy C276 rānei
• Hoahoa:Ngā piko maha-paparanga (8-12 paparanga) mō te roa o te 10,000+ huringa
• Mahi:Ka pēhi/ka totoro i te wā e mahi ana te takirere me te pupuri tonu i te pumau o te hiri

2. Tinana Takirere

• Whakatauranga Pēhanga:Akomanga 150 ki te Akomanga 2500 (ANSI/ASME B16.34)
• Ngā Hononga Whakamutu:He mea whakarewa (RF/RTJ), he mea whakarewa kōtui, he mea whakarewa pūmau rānei
• Awhe Pāmahana:-196°C ki te 550°C (whakawetohia ki te wera nui)

3. Kākano me te Kōpae

• Huihuinga kōpae-kakau whakapūmau mō te whakahāngai
• Te whakapakeketanga o te mata (paninga Stellite 6) hei ātete ki te pakū

4. Hiri Tuarua (Pūrua)

• Ngā mowhiti tākai karāpeti i raro i te pupuhi hei ārai i te pakaru

Me pēhea te mahi a te takirere porowhita hiri o raro

Hipanga 1: Te whakatuwhera i te Valve

Ina hurihia te wira ringaringa ki te taha maui:

• Ka ara ake te kakau, ka hiki ake i te kōpae mai i te nohoanga
• Ka pēhia ngā papa raro ki te taha tuaka, kia mau tonu ai te pumau o te hiri

Hipanga 2: Te Katia o te Valve

Hurihanga ā-karaka:

• Ka pana te kakau i te kōpae ki te nohoanga, ka aukati i te rere o te wai
• Ka toro atu ngā papa raro ki te roa taketake

Hipanga 3: Te Ārai i te Tūmomo

Te mahi hiri takirua:

• Hiri matua: Ara turuturu o te kakau ārai i ngā pūwero
• Hiri tuarua: Tākai karāpiti (e tutuki ana ki te API 622)

Ngā Painga ki ngā Takirere Porowhita Paerewa

Ngā Taupānga Ahumahi

1. Te Tukatuka Matū

• Ngā tipu chlor-alkali (te pupuri hau chlorine)
• Te hanga API rongoā

2. Hinu me te Hau

• Ngā waeine alkylation HF
• Whakawhitinga waiora LNG (-162°C)

3. Te Whakaputa Hiko

• Te wehewehenga wai whāngai o te kohua
• Ngā pūnaha karo tāpoi mamaoa

Ngā Paearu Kōwhiringa

1. Momo Pūwero

• Ngā Pūwero Whakarewa:Pēhanga-teitei (ASME Class 1500+)
• Ngā Pūwero Whakarewa:Pāpāho waikura (whakaotinga hiko kua orohia)

2. Ngā Āhuatanga Rere

• Te ōrau ōrite me te rere rārangi mō ngā tono whakahaere

3. Ngā Tiwhikete

• NACE MR0175 mō te ratonga kawa
• PED 2014/68/EU mō ngā mākete Pākehā

Ngā Kaihanga Takirere Bellow o Haina

Ko ngā kaihanga Hainamana pēnei i a NSW Valve Manufacturer e tuku ana:

• Ngā hoahoa e tutuki ana i ngā whakaritenga API 602/BS 1873
• 30% ngā penapena utu ki ngā waitohu Pākehā
• Whakamātautau pupuhi ritenga (kitenga turuturu heriuma)

Ngā Tikanga Pai mō te Tiaki

• Arotake ā-tau mō ngā pakaru ngenge o te pupuhi hau
• Whakahinuhinu kakau ki te hinu pāmahana teitei
• Āraia te taipana nui rawa (mōrahi 50 Nm mō ngā takirere DN50)