Muqaddima: Ahammiyat muragat al-juda fi masha’ir khtut anabib al-gaz
Tu’adda khtut anabib al-gaz al-tabii’i min al-bina’ al-takh-tibiyya al-hayawiyya allati tu-tlibu a’la darajat min ma’arif al-juda fi ‘amaliyyat al-laham. Ay ‘ayb fi al-wusul al-mulahama yuqaddi ila tasarrub al-gaz al-bali’, wa dhalika yuihadid bi-al-ashkhas wa al-mulk wa al-bi’a. Fi hadha al-dalil al-shamil, nastirid ma’arif muragat al-juda al-‘alamiyya wa nurbituha bi-ikhtiyar ma’iidat al-laham al-mulwala al-munasiba, ma’a al-ttis ‘ala huquq ENGINE WELDER.
Al-qism al-awwal: marahat muragat jida al-laham
1.1 al-Tahkim qabl al-laham (Preheat Control)
Yu’ad al-tasniya al-muqaddam li-al-wusul qabl al-laham min ahamm al-‘asbab li-man’ al-tashqiqat al-barida fi khtut al-anabib al-fuladhiyya. Yajub ‘i’da’ nizham tisi’ qabl ‘amaliyyat al-laham min 100-150 daraja li-al-fuladh al-karboni, wa min 150-200 daraja li-al-fuladh al-munkhals al-spa’iikh. Ma’iidat ENGINE WELDER mitla HW450D tuqaddim tayyar lahmi mustaqir ‘ind 280-320 ampier khafiya taktfi li-tasniyat al-minatiq al-mu’iit bi-al-wusul.
1.2 al-Fahs ma ba’d al-laham ghayr al-muhtari (NDT)
- Al-taswir al-ish’ai’i (RT): yakhfu ‘an al-makhan wa al-shu’ubat al-dakhiliyya — mulzim li-al-judhur
- Al-mawjadat fawq al-sawtiyya (UT): fa’al li-kashf al-shu’ubat al-sathiyd wa al-janibiyya
- Al-mulaththatat al-sathiyya (MT/PT): lifahs al-shu’ubat al-sathiyya ‘ala al-sath al-khariji
- Ikhtiyar al-daght al-hidruwlitiki: tahqiq ‘an ‘imtiyaz al-khatt al-kamil ‘ind dagh 1.25x
Al-qism al-thani:awlawiyyat ma’iidat al-laham al-mulwala li-khtut al-gaz
Tatbaq ‘amaliyyat ma-sha’ir anabib al-gaz al-tabii’i ma’iidat lahmi muwalida taimizu bi-al-khasiyyaat al-thaqiliyya:
- Istiqrar qaws al-laham: taqallubat tayyar la tasbih 5 ampier
- Quwwat lahmi ghayr aqall min 350 ampier li-al-‘amal fi al-shurt al-barida
- Nizam tasfiya thaqim ya’mal fi darajat -40 ila +55 daraja
- Quwwat takhliit kahrabii mu’awwana ghayr aqall min 6 kilu fuwad ampier li-al-da’i’ wa al-‘adawat
- Mi’yat ta’dil al-taswiya li-al-irtifa’ al-‘aliiya fi al-masha’ir al-jibaliyya
Al-qism al-thalith: jadwal ikhtiyar manakhil ENGINE WELDER hasab nawi al-mashru’
| Al-manakhil | Nan al-waqt | Tayyar al-laham @60% | Quwwat mu’awwana | Al-qatr al-muwaqqat |
|---|---|---|---|---|
| HW190 | Bnzina | 190A | 3.5kVA | DN100-DN300 |
| HW230 | Bnzina | 230A | 4kVA | DN200-DN400 |
| HW320DS | Diizal | 320A | 5kVA | DN300-DN700 |
| HW350D | Diizal | 350A | 6kVA | DN400-DN800 |
| HW450D | Diizal | 450A | 8kVA | DN600-DN1200 |
| HW450DS | Diizal | 450Ax2 | 8kVA | DN800-DN1400 (dhati al-laham) |
| HW600DS | Diizal | 600Ax2 | 12kVA | DN1000-DN1600 |
| HW800DS | Diizal | 800Ax2 | 15kVA | DN1200+ |
Al-qism al-rabi’: tiqua al-laham bi-ghaz al-muharami al-ma’dani (GMAW/MAG) fi al-masha’ir
Tusta’mal tiqua al-laham bi-ghaz al-muharami al-ma’dani (GMAW) ‘ala sa’at ‘adam al-wusul fi masha’ir al-anabibi li-mal’ wa tikt al-wusul. Yuamin al-muwalid HW450D tayyar lahmi mustaqir ‘ind 280-320 ampier ma’a ghaz al-khtlit (Ar+CO2) bi-nisbat 80/20, wa dhalika yuqaddim nisbat tartib ‘aliya ma’a taqllul al-tabashshur.
Nisab al-‘uyub al-masbhura hasab mi’yar API 1104:
- Makan / furughat: la tazid ‘an 2% min toul al-laham
- Shu’ubat: sifr tasamuh
- Insimakh naqis: la tazid ‘an 1.5 mm fi al-‘umq
- ‘i’da’ insimah janibi: la tazid ‘an 1.5 mm
Al-qism al-khamis: dirasa hala — khat anabib gaz fi al-Sharq al-Awsa
Wudi’a 14 wahda HW450D wa wahdatayn HW600DS fi mashru’ khat anabib gaz tabii’i tuil 320 kilometr fi mintaqat al-Khalij al-Arabi. Al-natayij al-tashghiliyya:
- Qatr al-anab: 914 millimetr (36 pulgada), sumkhat al-jidar 18.2 millimetr
- Adad al-wusul: 28,500 wusul mulahama
- Mira al-wusul al-yawmi: 52-78 wusula bi-istikhdam nizam al-laham al-ali
- Mira al-‘uyub: 0.8% (dakhil al-mi’yar 2% al-masbur)
- Waqt al-wuquf ghayr al-muqaddar: 2.3% min ‘i’da’ waqt al-tashghal
- ‘I’da’ sa’at al-‘amal: 41,000 sa’a tashghal
Al-qism al-sadis: nasaht li-man’ ‘uyub al-laham
- Al-tahqiq ‘an nizamat sathay al-anab qabl al-laham — izalat al-sudda wa al-duhn wa al-shahm
- Tadqiq ‘an ‘i’da’ surat mahrajat al-simi — 6-10 millimetr/thaniva li-wahad al-maid
- Riqabit darajat al-jarra bayn al-timrat — la tasbih 250 daraja
- Ista’mal ghaz al-himaya al-munasib aw khtlit al-Argon
- Fahs al-qutb al-Kuli qabl al-budu — ‘istibdal al-qutub al-mudalla furatan
- Al-tasniya al-muqaddam wajib fi darajat al-jarra aqall min 5 darajat
Li-al-istifsa’at ‘an ikhtiyar ma’iidat al-laham al-munasiba li-mashru’ak aw li-khud ratb al-thaman, tawassal ma’ana: jihaz: 010-86468776 | barid elektroni: denoh@126.com | al-Mawqi’: https://www.denohgroup.com/contact/