GB/T5310-2017 paipu maʻemaʻe no ka paila kiʻekiʻe
Palapala noi
Hoʻohana nui ʻia no ke kiʻekiʻe kiʻekiʻe a me ka lawelawe wela o ka paila (Superheater tube, reheater tube, ea alakaʻi paipu, pahu mahu nui no nā boiler kiʻekiʻe a kiʻekiʻe). Ma lalo o ka hana o ke kinoea flue wela kiʻekiʻe a me ka mahu wai, e oxidize a corrode ka paipu. Pono ka paipu kila i ke kūpaʻa kiʻekiʻe, ke kūpaʻa kiʻekiʻe i ka oxidation a me ka corrosion, a me ka paʻa paʻa.
Papa Nui
Papa o ke kila kila kila kiʻekiʻe: 20g, 20mng, 25mng
Ke kila kila kila: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.
Ma nā kūlana like ʻole he ʻokoʻa ka Papa
GB5310 : 20G = EN10216 P235GH
| Mea waiwai | C | Si | Mn | P | S | Cr | MO | NI | Al | Cu | Ti | V |
| P235GH | ≤0.16 | ≤0.35 | ≤1.20 | ≤0.025 | ≤0.025 | ≤0.3 | ≤0.08 | ≤0.3 | ≤0.02 | ≤0.3 | ≤0.04 | ≤0.02 |
| 20G | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.03 | ≤0.03 | - | - | - | - | - | - | - |
| Mea waiwai | Ikaika U'i | Hāʻawi | Hoʻonui |
| 20G | 410-550 | ≥245 | ≥24 |
| P235GH | 320-440 | 215-235 | 27 |
| 360-500 | 25 |
| Mea waiwai | Hoao | ||||||
| 20G: | Ka palahalaha ana | Hydraulic | Ho'āʻo Impact | NDT | Eddy | Ka nui o ka grazin | Hoʻolālā microscopic |
| P235GH | Ka palahalaha ana | Hydraulic | Ho'āʻo Impact | NDT | Electromagnetic | Hoʻonui ʻia ka neʻe ʻana | Leak tightness |
Hoʻomanawanui
ʻO ka mānoanoa o ka pā a me ka anawaena o waho:
Inā ʻaʻohe koi kūikawā, e hāʻawi ʻia ka paipu e like me ke anawaena o waho maʻamau a me ka mānoanoa o ka paia. E like me ka pepa ma hope
| Hoʻokaʻawale ʻana | Ke ano hana | Ka nui o ka paipu | Hoʻomanawanui | |||
| Papa maʻamau | Papa kiʻekiʻe | |||||
| WH | Paipu Wela Rolled（extrude） | Anawaena waho maʻamau （D） | <57 | 士 0.40 | ±0,30 | |
| 57 〜325 | SW35 | ±0.75%D | ±0.5%D | |||
| S>35 | ±1%D | ±0.75%D | ||||
| >325 ~6.. | + 1%D a i ʻole + 5. E lawe i hoʻokahi liʻiliʻi一2 | |||||
| >600 | + 1%D a i ʻole + 7,E lawe i hoʻokahi liʻiliʻi一2 | |||||
| Mānoanoa Pāpā Mānoanoa （S） | <4.0 | ±|・丨） | ±0.35 | |||
| >4.0-20 | + 12.5%S | ±10%S | ||||
| >20 | DV219 | ±10%S | ±7.5%S | |||
| 心219 | + 12.5%S -10%S | 土10%S | ||||
| WH | Paipu hoonui wela | Anawaena waho maʻamau (D) | pau loa | ±1%D | ±0.75%. |
| Mānoanoa Pāpā Mānoanoa (S) | pau loa | + 20%S -10%S | + 15%S -io%s | ||
| wc | Huki anu (rolled) Ppipe | Anawaena waho maʻamau (D) | <25.4 | ± 'L1j | — |
| >25.4 〜4() | ±0.20 | ||||
| >40 〜50 | |:0.25 | — | |||
| >50 〜60 | ±0.30 | ||||
| >60 | ±0.5%D | ||||
| Mānoanoa Pāpā Mānoanoa (S) | <3.0 | ±0.3 | ±0.2 | ||
| >3.0 | S | ±7.5%S |
Ka lōʻihi:
ʻO ka lōʻihi maʻamau o nā paipu kila he 4 000 mm ~ 12 000 mm. Ma hope o ke kūkākūkāʻana ma waena o ka mea hoʻolako a me ka mea kūʻai aku, a hoʻopiha i kaʻaelike, hiki ke hāʻawiʻia i nā paipu kila me ka lōʻihi ma mua o 12 000 mm a iʻole ka pōkole ma mua o I 000 mm akāʻaʻole iʻoi aku ka pōkole ma mua o 3 000 mm; ka lōʻihi pōkole ʻO ka helu o nā paipu kila ma lalo o 4,000 mm akā ʻaʻole i emi iho ma mua o 3,000 mm ʻaʻole ia ma mua o 5% o ka huina o nā paipu kila i hāʻawi ʻia.
Kaumaha lawe:
Ke hāʻawiʻia ka paipu kila e like me ke anawaena o waho a me ka mānoanoa o ka paia nominal a iʻole ke anawaena o loko a me ka mānoanoa o ka paia nominal, e hāʻawiʻia ka paipu kila e like me ke kaumaha maoli. Hiki ke hāʻawi ʻia e like me ke kaumaha theoretical.
Ke hāʻawiʻia ka paipu kila e like me ke anawaena o waho a me ka mānoanoa liʻiliʻi o ka paia, hāʻawiʻia ka paipu kila e like me ke kaumaha maoli; kūkākūkā nā ʻaoʻao hoʻolako a koi. A ua hōʻike ʻia ma ka ʻaelike. Hiki ke hāʻawi ʻia ka paipu kila e like me ke kaumaha theoretical.
Kaumaha kaumaha:
E like me nā koi o ka mea kūʻai aku, ma hope o ke kūkākūkā ʻana ma waena o ka mea hoʻolako a me ka mea kūʻai aku, a ma ka ʻaelike, ʻo ka ʻokoʻa ma waena o ke kaumaha maoli a me ke kaumaha theoretical o ka paipu kila hāʻawi e hoʻokō i kēia mau koi:
a) Paipu kila hoʻokahi: ± 10%;
b) ʻO kēlā me kēia pūʻulu o nā paipu kila me ka liʻiliʻi loa o 10 t: ± 7.5%.
Koi hoao
Hōʻike Hydraustatic:
Pono e ho'āʻo hydraulically ka paipu kila i kēlā me kēia. ʻO 20 MPa ke kaomi hoʻāʻo kiʻekiʻe. Ma lalo o ke kaomi ho'āʻo, ʻaʻole i emi iho ka manawa stabilization ma mua o 10 s, a ʻaʻole e kahe ka paipu kila.
Ma hope o ka ʻae ʻana o ka mea hoʻohana, hiki ke hoʻololi ʻia ka hoʻāʻo hydraulic e ka eddy current testing a i ʻole ka hoʻāʻo leakage flux magnetic.
Ho'āʻo Nondestructive:
ʻO nā paipu e koi aku i ka nānā hou aku e pono ke nānā ʻia me ka ultrasonically. Ma hope o ke kūkākūkā e koi i ka ʻae o ka ʻaoʻao a ua kuhikuhi ʻia i loko o ka ʻaelike, hiki ke hoʻohui ʻia nā hoʻāʻo ʻole luku ʻē aʻe.
Ho'āʻo palahalaha:
ʻO nā paipu me ke anawaena o waho i ʻoi aku ma mua o 22 mm e kau ʻia i kahi hoʻāʻo palahalaha. ʻAʻole pono e ʻike ʻia ka delamination, nā kiko keʻokeʻo, a me nā haumia i ka wā o ka hoʻokolohua holoʻokoʻa.
ʻO ka hoʻāʻo ʻana i ke ahi:
E like me nā koi o ka mea kūʻai aku a i ʻōlelo ʻia ma ka ʻaelike, hiki ke hana ʻia ka paipu kila me ke anawaena o waho ≤76mm a me ka mānoanoa pā ≤8mm. Hana ʻia ka hoʻokolohua ma ka lumi wela me kahi taper o 60 °. Ma hope o ka puhi ʻana, pono e hoʻokō ka nui o ke anawaena o waho i nā koi o ka papa ʻaina aʻe, a ʻaʻole pono e hōʻike ka mea hoʻāʻo i nā māwae a i ʻole nāha.
| ʻAno kila
| ʻO ke anawaena o waho o ka lapalapa o ka paipu kila/% | ||
| Ka anawaena o loko/ka anawaena o waho | |||
| <0.6 | >0.6 〜0.8 | >0.8 | |
| ʻO ke kila hoʻolālā kalapona kiʻekiʻe | 10 | 12 | 17 |
| kila kila kila | 8 | 10 | 15 |
| • Ua helu ʻia ke anawaena o loko no ka hāpana. | |||
