Nā mea nānā no nā pahu mālama cryogenic

Ka nana ana onā pahu hoʻopaʻa ʻauamo cryogenicua māheleʻia i ka nānāʻana i waho, ka nānāʻana i loko a me ka nānāʻana i nāʻaoʻao he nui. E hoʻoholo ʻia ka nānā ʻana o ka pahu mālama cryogenic e like me nā kūlana hoʻohana ʻenehana o ka pahu mālama.

ʻO ka maʻamau, hana ʻia nā nānā ʻana o waho ma ka liʻiliʻi hoʻokahi manawa i ka makahiki, hana ʻia ka nānā ʻana i loko ma ka liʻiliʻi loa i hoʻokahi manawa i kēlā me kēia 3 mau makahiki, a hana ʻia nā nānā multi-faceted ma kahi o hoʻokahi manawa i kēlā me kēia 6 makahiki. Inā ʻoi aku ke ola o ka pahu mālama haʻahaʻa haʻahaʻa ma mua o 15 mau makahiki, koi ʻia ka nānā ʻana i loko a me waho i kēlā me kēia makahiki ʻelua, a inā he 20 mau makahiki ke ola o ka lawelawe, hana ʻia nā nānā kūloko a me waho ma ka liʻiliʻi hoʻokahi i kēlā me kēia makahiki.

Nānā i loko
1. Ina paha o loko o ka ili a me ka manhole lawe ma luna o ka waihona pahu mea corrosive a abraded, a ina paha he mau māwae ma ka weld seam, ke poʻo hoʻololi wahi a 'ē aʻe wahi me ka stress noonoo;
2. I ka wā e ʻino ai ka ʻili o loko a me waho o ka pahu, pono e hana ʻia nā ana mānoanoa o ka pā ma kona mau ʻāpana. Inā ʻoi aku ka liʻiliʻi o ka mānoanoa pā i ana ʻia ma mua o ka mānoanoa o ka pā hoʻolālā, pono e hoʻokō hou ʻia ka hōʻoia ikaika, a waiho ʻia nā manaʻo no ka hiki ke hoʻomau i ka hoʻohana ʻia;
3. Ke loa'a nā hemahema o ka paia o loko o ka pahu e like me ka decarbonization, ka corrosion stress, intergranular corrosion, a me nā māwae luhi, e hana ʻia ka hoʻokolokolo metallographic a me ke ana paʻakikī o ka ʻili, a e waiho ʻia kahi hōʻike nānā.Nānā waho
1. E nānā inā paha ka papa anti-corrosion, ka ʻūhā a me ka papa inoa o nā lakopahu mālama wai cryogenicua paʻa, a ua piha nā mea palekana a me nā mea hoʻomalu, paʻakikī a hilinaʻi;
2. Inā he mau māwae, deformations, a me ka overheating kūloko ma ka ili o waho;
3. E lawe i na weld, na mea kaomi no ka leaks, ina paha e paa ana na bolt hoopaa, a me ke poho o ke kumu.

Nānā nui ʻia
1. Non-destructive inspection of the main weld or shell, with a spot check long o 20% o ka huina weld long;
2. Ma hope o ka hala ʻana i nā nānā i loko a me waho, e hana i kahi hoʻokolohua hydraulic ma 1.25 manawa i ka hoʻolālā hoʻolālā o ka pahu waihona a me kahi hoʻāʻo ʻana i ka ea ma ke kaomi hoʻolālā o ka pahu waihona. I ka wā o ka nānā ʻana, ʻaʻole leak-free ka pahu a me nā welds a pau, a ʻaʻole i ʻike ʻia ka deformation abnormal o ka pahu;

Ma hope o ka pau ʻana o ka nānā ʻana i ka pahu mālama haʻahaʻa haʻahaʻa, e hana ʻia kahi hōʻike e pili ana i ka nānā ʻana i ka pahu mālama, e hōʻike ana i nā pilikia a me nā kumu e hiki ke hoʻohana mau ʻia a hiki ke hoʻohana ʻia akā pono e hoʻoponopono ʻia a hiki ʻole ke hoʻohana.