Igwe anaghị agba nchara maka ọkụ ọkụ bụ ụdị ọkpọkọ mmiri ọkụ, nke so na ụdị tube nchara enweghị nkebi. Usoro mmepụta ihe bụ otu ihe ahụ dị ka tube na-enweghị ihe ọ bụla, ma e nwere ihe siri ike chọrọ na ígwè eji eme ihe na-emepụta tube ígwè. A na-ejikarị ọkụ ọkụ na tube na-enweghị ihe ọ bụla na-eme ihe na okpomọkụ dị elu na ọnọdụ nrụgide dị elu, ọkpọkọ na ikuku okpomọkụ dị elu na ikuku mmiri n'okpuru ihe ahụ, ga-eme oxidation na corrosion. A na-achọrọ tubes ígwè ka ọ nwee nnukwu ike na-adịgide adịgide, nnukwu nguzogide corrosion oxidation, yana nkwụsi ike anụ ahụ dị mma. A na-ejikarị ọkụ ọkụ na tube na-enweghị ihe ọ bụla na-emepụta nnukwu nrụgide na ultra-high pressure boiler superheater tube, reheater tube, gas ndu ji esi mmiri ọkụ na enweghị nkebi tube, isi uzuoku tube, wdg.

Obere na ọkara mgbali mmiri ọkụ tubeGB3087-1999, mmiri ọkụ tube enweghị nkebiGB5310-1999a na-eji na-arụpụta a dịgasị iche iche nke owuwu nke ala mgbali ji esi mmiri ọkụ superheated uzuoku ọkpọkọ, esi mmiri ọkpọkọ na locomotive ji esi mmiri ọkụ superheated uzuoku ọkpọkọ, anwụrụ anwụrụ, obere anwụrụ anwụrụ anwụrụ na arch brik ọkpọkọ nke elu àgwà carbon structural ígwè ọkụ akpọrepu na oyi adọta (akpọrela). ) igwe anaghị agba nchara. Igwe anaghị agba nchara maka nhazi (GB/T8162-1999) bụ tube nchara na-enweghị nkebi maka ihe owuwu izugbe na nhazi igwe. Nkọwapụta na ogo ọdịdị:GB5310-95"Seamless Steel tube maka High pressure ji esi mmiri ọkụ" ọkụ akpọrepu ọkpọkọ dayameta 22 ~ 530mm, mgbidi ọkpụrụkpụ 20 ~ 70mm. The elu dayameta nke oyi adọta (oyi akpọrepu) tube bụ 10 ~ 108mm, na mgbidi ọkpụrụkpụ bụ 2.0 ~ 13.0mm. Pụrụ iche ekara enweghị nkebi ígwè ọkpọkọ bụ a n'ozuzu okwu maka enweghị nkebi ígwè ọkpọkọ nke ọzọ cross ngalaba shapes ma e wezụga gburugburu ọkpọkọ. Dị ka dị iche iche udi na size nke ígwè ọkpọkọ ngalaba, ọ nwere ike kewaa nha nha mgbidi ọkpụrụkpụ pụrụ iche ekara enweghị nkebi ígwè ọkpọkọ (koodu D), unequal mgbidi ọkpụrụkpụ pụrụ iche ekara enweghị enweghị nkebi (koodu maka BD), mgbanwe dayameta pụrụ iche. -ụdị enweghị nkebi ígwè ọkpọkọ (koodu maka BJ). A na-eji tubes ígwè na-enweghị ụdị pụrụ iche eme ihe n'ọtụtụ akụkụ dị iche iche, ngwá ọrụ na akụkụ ígwè ọrụ. E jiri ya tụnyere tube gburugburu, tube nke nwere ụdị pụrụ iche n'ozuzu nwere oge ka ukwuu nke inertia na modulus nke ngalaba, ma nwee ikike dị ukwuu iguzogide ịgbagọ na torsion, nke nwere ike belata ịdị arọ nke ihe owuwu ahụ ma chekwaa ígwè. 4. Nnwale ihe mejupụtara kemịkalụ (1)GB3087-82"Ụdị igwe anaghị agba nchara maka igwe ọkụ ọkụ dị ala na nke ọkara" ndokwa. Usoro nyocha ihe mejupụtara kemịkalụ dabere GB222-84 na GB223 “Steel and Alloy Chemical Analysis Method” akụkụ dị mkpa. (2)GB5310-95"Ụdị igwe anaghị agba nchara maka igwe ọkụ ọkụ dị elu" ndokwa. Usoro nnwale nke ihe mejupụtara kemịkalụ kwekọrọ n'akụkụ ndị dị mkpa nke GB222-84, Usoro nyocha Chemical nke Steel na Alloy, yana GB223 Usoro nyocha kemịkalụ nke ígwè na alloy. (3) A ga-eme nyocha ihe mejupụtara kemịkalụ nke tubes igwe eji esi mmiri ọkụ na-ebubata dị ka ụkpụrụ ndị dị mkpa akọwapụtara na nkwekọrịta ahụ si dị. 5 ji esi mmiri ọkụ na enweghị nkebi tube ígwè (1) elu àgwà carbon structural ígwè ígwè bụ 20G,20MnG. (3) nchara na-eguzogide nchara nke a na-ejikarị 1Cr18Ni9, 1Cr18Ni11Nb boiler tube na mgbakwunye iji hụ na ihe mejupụtara kemịkalụ na ihe eji arụ ọrụ, iji mee mgbọrọgwụ ule hydraulic site na mgbọrọgwụ, iji mee flaring, ule flattening. A na-ebunye tubes ígwè na ọnọdụ okpomọkụ a na-agwọ. Tụkwasị na nke ahụ, a na-achọkwa microstructure, nha ọka na decarbonization oyi akwa nke ọkpọ ígwè emechara.

6. Nnwale arụmọrụ anụ ahụ (1) GB3087-82 "Igwe anaghị agba nchara maka igwe ọkụ ọkụ dị ala na nke ọkara” ndokwa. Nnwale tensile dị ka GB/T228-87 si dị, ule hydraulic dị ka GB/T241-90 si dị, ule skwọsh dị ka GB/T246-97 si dị, nnwale ọkụ dị ka GB/T242-97, ule ịgbado oyi dị ka GB24497 (2) GB5310 -95 "Igwe anaghị agba nchara maka igwe mmiri ọkụ dị elu” ndokwa. Nnwale tensile, ule hydrostatic na ule flattening bụ otu ihe ahụ GB3087-82; Nnwale mmetụta dị ka GB229-94 si dị, nnwale ọkụ dị ka GB/T242-97 si dị, ule nha ọka dịka YB/T5148-93 siri dị; Dị ka GB13298-91 maka nyocha anụ ahụ microscopic, GB224-87 maka nyocha oyi akwa decarbonized, yana dịka GB224-87 maka nyocha ultrasonicGB / T5777-96. na ụkpụrụ ndị dị mkpa akọwapụtara na nkwekọrịta ahụ.

7. Isi mbubata na mbupụ ọnọdụ

(1) nnukwu igwe na-ekpo ọkụ ọkụ enweghị nkebi tube isi mba ndị na-ebubata bụ Japan, Germany. Ọtụtụ mgbe mbubata nkọwa nke 15914.2 mm;2734.0 mm; 219.110.0 mm; 41975mm; 406.460 mm, wdg Opekempe nkọwapụta bụ 31.84.5 mm, ogologo na-abụkarị 5 ~ 8 m.(2) n'ihe banyere mbubata na-ekwu, Germany mannesmann enweghị nkebi ji esi mmiri ọkụ tube, ọkpọkọ igwe nri dị ST45 site ultrasonic ule nke onuogugu, chọpụtara na ọnụ ọgụgụ dị nta nke n'ime ntụpọ nke ígwè ọkpọkọ karịa ụlọ ọrụ ụkpụrụ na German ígwè Association ụkpụrụ.(3) si Germany ibubata alloy ígwè ọkpọkọ, ígwè. ọkwa bụ 34 crmo4 na 12 crmov, wdg Ụdị ígwè tube dị elu na-arụ ọrụ okpomọkụ dị mma, nke a na-ejikarị eme ihe maka ọkụ ọkụ ọkụ ọkụ ígwè ọkpọkọ. 152.48.0 mm12m;89.110.0 mm6m; 101.610.0 mm12m; 114.38.0 mm6m; 127.08.0 mm9m JISG3458 mmejuputa ụkpụrụ ụlọ ọrụ Japan, dị ka ọkwa nchara maka STPA25, ụdị ọkpọkọ ígwè a na-eji maka ịkwado na elu okpomọkụ alloy tube. nnukwu mba ndị na-ebubata bụ Japan, Germany. Ọtụtụ mgbe mbubata nkọwa nke 15914.2 mm;2734.0 mm; 219.110.0 mm; 41975mm; 406.460 mm bụ nke kacha nta nkọwa dị ka 31,84.5 mm, ogologo na-abụkarị 5 ~ 8 m. ọnụ ọgụgụ dị nta nke esịtidem ntụpọ nke ígwè ọkpọkọ karịa ụlọ ọrụ ụkpụrụ na German ígwè Association ụkpụrụ.(3) si Germany ibubata alloy ígwè ọkpọkọ, ígwè ọkwa. bụ 34 crmo4 na 12 crmov. 152.48.0 mm12m;89.110.0 mm6m; 101.610.0 mm12m; 114.38.0 mm6m; 127.08.0 mm9m JISG3458 mmejuputa ụkpụrụ ụlọ ọrụ Japan, dị ka ọkwa nchara maka STPA25. Ụdị ọkpọkọ ígwè a na-eji eme ihe na tube alloy dị elu.

The ji esi mmiri ọkụ enweghị nkebi tube mmepụta ụzọ esi esi mmiri ọkụ na ụdị enweghị nkebi tube. Ụzọ nrụpụta na tube enweghị nkebi bụ otu, ma nwee arịrịọ siri ike maka nrụpụta ígwè eji na ọkpọkọ ígwè. Dị ka ojiji nke okpomọkụ nwere ike kewara abụọ n'ozuzu ji esi mmiri ọkụ tube na elu nsogbu ji esi mmiri ọkụ tube.1, nnyocha nke (1) n'ichepụta usoro: (1) general ji esi mmiri ọkụ enweghị nkebi tube okpomọkụ n'okpuru 450 ℃, anụ ụlọ ọkpọkọ tumadi na-eji 10 , 20 carbon steel na-ekpo ọkụ akpọrepu ma ọ bụ oyi adọta tube mmepụta. uzuoku mmiri, oxidation na corrosion ga-eme. Ihe achọrọ nke ọkpọkọ ígwè nwere ike mgbawa dị elu, nnukwu oxidation corrosion resistance, ma nwee ezigbo nkwụsi ike nhazi. superheated uzuoku ọkpọkọ, nnukwu na obere ọkpọkọ na tube arch brik, wdg (2) elu nsogbu ji esi mmiri ọkụ enweghị nkebi tube bụ tumadi ji rụpụta elu-nrụgide na ultrahigh-nrụgide. ji esi mmiri ọkụ superheater tubes, reheater tube, airway isi uzuoku ọkpọkọ, wdg.

Ojiji nke mmiri ọkụ tube enweghị nkebi

(1) n'ozuzu ji esi mmiri ọkụ enweghị nkebi tube na-tumadi-eji mee ka mmiri mgbidi tube, mmiri ọkpọkọ, superheated uzuoku tube, locomotive ji esi mmiri ọkụ superheated uzuoku ọkpọkọ, nnukwu na obere ọkpọkọ na tube arch brik, wdg (2) nnukwu nsogbu ji esi mmiri ọkụ enweghị nkebi tube bụ tumadi. eji arụpụta elu-nrụgide na ultrahigh-nrụgide ji esi mmiri ọkụ superheater tubes, reheater tube, airway isi uzuoku ọkpọkọ, wdg (3) GB3087-82 ala ọkara. Igwe ọkụ na-ekpo ọkụ na-enweghị nkebi tubes na GB5310-95 "oke nrụgide ji esi mmiri ọkụ enweghị nkebi ígwè tube" ụkpụrụ. Ogo ọdịdị: A naghị ekwe ka tube ígwè dị n'ime na n'èzí nwee mgbape, mpịachi, mpịachi, scarring, delamination na ntutu. A ga-ewepụ ntụpọ ndị a kpamkpam. Wepụ adịghị mma ndiiche, omimi agaghị gafere nominal mgbidi ọkpụrụkpụ ihicha na n'ezie mgbidi ọkpụrụkpụ ga-abụ ihe na-erughị kacha nta uru nke mgbidi ọkpụrụkpụ kwere. Weight ngụkọta oge usoro nke ji esi mmiri ọkụ enweghị nkebi tube tiori: – mgbidi ọkpụrụkpụ (dayameta) * 0.02466 * ọkpụrụkpụ mgbidi.