Hydrogen ni ji nu lɛ yɛ sɛɛnamɔi komɛi yɛ nitoo kɛ gbɛfaa mli. Kɛ akɛto hydrogen he lɛ, hydrogen ni ji nu (LH2) lɛ mli eyi obɔ kɛ tsɔne ni mli wa waa, ni ebiɔ ni akɛ nɔnyɛɛ ni baa shi awo mli koni akɛto. Shi kɛlɛ, esa akɛ hydrogen lɛ afee -253°C dani ebatsɔ nu, ni tsɔɔ akɛ ewa waa. Dɔlɛ ni baa shi waa kɛ la ni tsoɔ lɛ he osharai haa hydrogen ni ji nu lɛ feɔ nɔ ni yɔɔ oshara. Yɛ yiŋtoo nɛɛ hewɔ lɛ, shweshweeshwefeemɔ he gbɛjianɔtoi ni mli wa kɛ hekɛnɔfɔɔ ni nɔ kwɔ ji taomɔ nii ni sɛɛ efooo kɛ́ afee valves kɛha nitsumɔi ni sa lɛ.
Fadila Khelfaoui, kɛ Frédéric Blanquet ŋma
Velan valv (Velan)
Nibii ni akɛtsuɔ nii ni ji hydrogen ni ji nu (LH2).
Amrɔ nɛɛ, akɛ hydrogen ni ji nu tsuɔ nii ni abɔɔ mɔdɛŋ akɛ akɛtsu nii yɛ bei krɛdɛɛi srɔtoi amli. Yɛ kɔɔyɔŋ lɛlɛ mli lɛ, abaanyɛ akɛtsu nii akɛ roket shwiemɔ tsofa ni ebaanyɛ ekɛ shoofeemɔ hu aba yɛ transonic kɔɔyɔɔ tsɔnei amli. Akɛni “jeŋ nilee wulu” fiɔ sɛɛ hewɔ lɛ, nu ni ji hydrogen lɛ ebatsɔ nɔ titri ni akɛtsuɔ nii yɛ gbɛjianɔtoi ni haa hulutsoo lɛ yaa hiɛ waa, nibii ni haa hulutsoo lɛ yaa oya, kɛ nuklea fusion nibii amli. Beni gbɔmɛi ashwelɛ akɛ amɛná hiɛyaa ni yaa nɔ daa lɛ yaa hiɛ lɛ, tsɔnei wuji kɛ lɛlɛi babaoo kɛ hydrogen ni ji nu lɛ etsu nii akɛ tsofa yɛ nyɛsɛɛ afii nɛɛ amli. Yɛ nitsumɔ mli shihilɛi ni yɔɔ ŋwɛi nɛɛ amli lɛ, bɔ ni valves he hiaa ha lɛ jeɔ kpo faŋŋ waa. Nibii ni yɔɔ shweshweeshwe ni anyɛɔ akɛ he fɔ̃ɔ nɔ lɛ ji nɔ ko ni he hiaa waa yɛ nu mli hydrogen ni akɛhaa lɛ mli (nifeemɔ, gbɛfaa, nitoo kɛ mlijaa). Nitsumɔi ni kɔɔ hydrogen ni ji nu lɛ he lɛ ji kaa. Velan kɛ ehe ewo nitsumɔi srɔtoi ni kɔɔ nibii heei ahe lɛ amli be kakadaŋŋ, ni eka shi faŋŋ akɛ ekɛ ehewalɛ eye kunim yɛ ŋaa gbɛ nɔ kaai ni kɔɔ nu mli hydrogen nitsumɔ he lɛ mli.
Kaai ni yɔɔ tsɔne lɛ he gbɛjianɔtoo lɛ mli
Nɔnyɛɛ, latsaa kɛ hydrogen ni falɛ yɔɔ mli lɛ fɛɛ ji nibii titrii ni akwɛɔ yɛ valve he mfonirifeemɔ mli osharai ahe susumɔ mli. Bɔni afee ni valve lɛ atsu nii jogbaŋŋ lɛ, bɔ ni afee lɛ aha kɛ nibii ni akɛhalaa lɛ tsuɔ gbɛfaŋnɔ ko ni he hiaa waa he nii. Valves ni akɛtsuɔ nii yɛ hydrogen ni ji nu mli lɛ kɛ naagbai krokomɛi kpeɔ, ni nɔ ni fata he ji naagbai ni hydrogen lɛ kɛbaa dade nɔ lɛ. Yɛ hulutsoo be ni baa shi waa lɛ mli lɛ, esaaa akɛ valve nibii lɛ nyɛɔ amɛshiɔ hydrogen molecules lɛ atuatsemɔ pɛ (awieɔ gbɛi ni kɛ amɛhe woɔ mli lɛ ekomɛi ahe yɛ nikasemɔ mli lolo), shi moŋ esa akɛ amɛya nɔ amɛtsu nii jogbaŋŋ be kakadaŋŋ yɛ amɛwala be lɛ mli. Yɛ bɔ ni tsɔnei ahe nilee yaa hiɛ ehaa amrɔ nɛɛ he lɛ, nitsumɔhe lɛ bɛ nilee babaoo yɛ bɔ ni akɛ nibii ni jeee dade tsuɔ nii yɛ hydrogen nitsumɔi amli lɛ he. Kɛ́ oohala nɔ ni akɛbaatswa nɔ ko lɛ, ehe miihia ni osusu nɛkɛ sane nɛɛ he. Sealing ni tsuɔ nii jogbaŋŋ lɛ hu ji nɔ titri ni akɛkwɛɔ bɔ ni afee lɛ jogbaŋŋ ahaa. Srɔtofeemɔ ni miihe ashɛ 300°C yɛ nu mli hydrogen kɛ hulutsoo ni yɔɔ jɛmɛ lɛ teŋ (tsu mli hulutsoo), ni no haa hulutsoo be lɛ yaa hiɛ. Valve lɛ mli nibii lɛ eko fɛɛ eko baatsɔ hulutsoo mlilɛɛmɔ kɛ shwiemɔ mli yɛ gbɛi srɔtoi anɔ. Nɛkɛ srɔtofeemɔ nɛɛ baanyɛ aha ŋwɛi nibii ni he hiaa waa lɛ amli nu ni yɔɔ oshara aba. Bɔ ni valve stem lɛ mli wa ha lɛ hu ji nɔ ni akɛjwɛŋmɔ maa nɔ yɛ tsɔne lɛ he. Tsakemɔ ni jɛɔ fɛ̃i mli kɛyaa dɔlɛ mli lɛ haa dɔlɛ hoɔ. Bonnet lɛ mli hei ni mli edɔ lɛ baanyɛ afee ais, ni baanyɛ afite stem sealing nitsumɔ lɛ ni ená valve lɛ nitsumɔ nɔ hewalɛ. Kɛfata he lɛ, hulutsoo be ni baa shi waa ni ji -253°C lɛ tsɔɔ akɛ ehe miihia ni akɛ tsɔne ni hi fe fɛɛ ni haa hulutsoo be lɛ baa shi lɛ atsu nii koni valve lɛ anyɛ akwɛ nu ni ji hydrogen lɛ nɔ yɛ hulutsoo be nɛɛ mli, yɛ be mli ni ehaa nɔ ni fiteɔ kɛjɛɔ hulutsoo be mli lɛ baa shi. Shii abɔ ni dɔlɛ ni akɛyaa hydrogen ni ji nu lɛ mli lɛ baahi lɛ, ebaatsɔ la ni ebaatsɔ ŋmɔtɔ. Jeee nakai pɛ, shi moŋ kɔɔyɔɔ ni haa wala yibii lɛ shwieɔ shi lɛ baa yɛ he ni tsɔne ni tsiɔ la lɛ mli lɛ fãa lɛ. Kɛji kɔɔyɔɔ ni haa wala lɛ kɛ hydrogen loo nibii krokomɛi ni shãa lɛ kpe lɛ, la he oshara lɛ yaa hiɛ. No hewɔ lɛ, kɛji akɛ asusu la he oshara ni valvɛi baanyɛ akpee lɛ he lɛ, esa akɛ afee valvɛi lɛ kɛ nibii ni nyɛɔ etswaa, kɛ agbɛnɛ hu nibii ni nyɛɔ la tswaa, nibii ni akɛtsuɔ nii kɛ waya kpãi, ni fɛɛ yɛ woji ni tsɔɔ akɛ amɛhe wa fe fɛɛ. Enɛ haa valve lɛ tsuɔ nii jogbaŋŋ kɛji la ba. Nɔ ni tsiimɔ yaa hiɛ lɛ hu ji oshara ni baanyɛ aha valves lɛ akatsu nii. Kɛji akɛ nu mli hydrogen lɛ mɔmɔ valve lɛ gbɔmɔtso lɛ mli ni dɔlɛ ni tsɔɔ kɛ nu mli hydrogen ni hoɔ lɛ ba yɛ be kome mli lɛ, ebaaha nɔnyɛɛ lɛ aya hiɛ. Kɛji akɛ srɔtofeemɔ kpele ko yɛ nɔnyɛɛ mli lɛ, ŋmei (ŋmei)/gbee baa. Nɛkɛ nibii nɛɛ baanyɛ aha valve lɛ nitsumɔ shihilɛ lɛ aba naagbee oya, ni efiteɔ nibii babaoo po yɛ gbɛjianɔtoo lɛ mli naagbai ahewɔ. Ekɔɔɔ he eko shihilɛ pɔtɛɛ ni yɔɔ nitsumɔ mli lɛ, kɛji akɛ abaanyɛ asusu nibii ni awie he yɛ ŋwɛi nɛɛ ahe jogbaŋŋ ni abaanyɛ atsu nibii ni sa he nii yɛ gbɛjianɔtoo lɛ mli lɛ, ebaanyɛ eha valve lɛ atsu nii jogbaŋŋ ni anyɛɔ akɛ he fɔ̃ɔ nɔ. Kɛfata he lɛ, naagbai komɛi yɛ ni kɔɔ shihilɛ he saji ahe, tamɔ fugitive leakage. Hydrogen lɛ yɛ srɔto kwraa: eji molekuli bibii, ebɛ su, ebɛ ŋmɔlɔ, ni etswaa. Nɛkɛ sui nɛɛ tsɔɔ bɔ ni ehe hiaa waa akɛ zero leakage aba.
Yɛ Las Vegas Kooyigbɛ Anaigbɛ Ŋshɔnaa Hydrogen Nu-feemɔ nitsumɔhe lɛ,
Wieland Valve tsɔne he nilelɔi lɛ kɛ ŋaa nitsumɔi miiha
Valve tsabaai
Ekɔɔɔ he eko nitsumɔ pɔtɛɛ ni etsuɔ kɛ henɔ ni eyɔɔ lɛ, esa akɛ valves ni akɛtsuɔ nu hydrogen nitsumɔi fɛɛ ahe nii lɛ ashɛ taomɔ nii komɛi ni afɔɔ namɔ lɛ ahe. Nɔ ni fata taomɔ nii nɛɛ ahe ji: esa akɛ nibii ni akɛfee tsɔne lɛ fã lɛ akwɛ koni tsɔne lɛ mli emuuyeli lɛ ahi shi yɛ hulutsoo be ni baa shi waa mli; Esa akɛ nibii fɛɛ aná adebɔɔ mli la he shweshweeshwefeemɔ nibii. Yɛ yiŋtoo nɛɛ nɔŋŋ hewɔ lɛ, esa akɛ nibii ni akɛfiɔ nu mli hydrogen valves lɛ ahe kɛ nibii ni akɛwoɔ mli lɛ hu ashɛ shishijee taomɔ nii ni atsĩ tã yɛ yiteŋgbɛ lɛ ahe. Austenitic dade ni bɛ ŋmɔlɔ ji nɔ ni hi jogbaŋŋ kɛha nu mli hydrogen valves. Eyɛ hewalɛ ni hi jogbaŋŋ ni ekɛbaatsu nii, hulutsoo fioo pɛ efiteɔ, ni ebaanyɛ edamɔ hulutsoo bei wuji anaa. Nibii krokomɛi hu yɛ ni sa kɛha nu mli hydrogen shihilɛi, shi amɛtsuɔ nii yɛ nifeemɔi pɔtɛɛ komɛi amli pɛ. Kɛfata nibii ni akɛbaatsu nii lɛ ahe lɛ, esaaa akɛ akuɔ hiɛ ashwieɔ bɔ ni afee lɛ aha lɛ he saji fitsofitso komɛi anɔ, tamɔ valve lɛ shishigbɛ tsɔne lɛ ni akɛbaatsu nii koni akɛbu nɔ ni akɛwoɔ mli lɛ he kɛjɛ hulutsoo ni baa shi waa lɛ he. Kɛfata he lɛ, abaanyɛ akɛ nɔ ko ni tsiɔ nu kɛjɛɔ mli lɛ awo valve stem lɛ mlilɛɛmɔ lɛ mli koni nu akabote mli. Nibii ni akɛtsuɔ nii yɛ shihilɛi pɔtɛɛ komɛi amli lɛ ahe mfonirifeemɔ yeɔ ebuaa ni ehaa ŋaa gbɛ nɔ naagbai srɔtoi ahe tsabaai ni sa babaoo. Vellan kɛ ŋmeii valvɛi haa yɛ gbɛi srɔtoi enyɔ nɔ: ŋmeii valvɛi ni yɔɔ dade sɛi ni yɔɔ eccentric enyɔ kɛ eccentric etɛ. Nibii ni afee lɛ fɛɛ yɛ nyɛmɔ ni tsɔɔ gbɛi enyɔ nɔ. Kɛtsɔ diski lɛ su kɛ gbɛ ni etsɔɔ nɔ ebɔleɔ ehe lɛ he mfonirifeemɔ nɔ lɛ, abaanyɛ ana naatsii ni mli wa. Gbɛjegbɛ ko bɛ valve lɛ gbɔmɔtso lɛ mli ni nɔ ko ni eshwɛ yɛ mli lɛ bɛ. Yɛ Velan ŋwɛi ŋtayaa ni ji enyɔ lɛ mli lɛ, ekɛ ŋtayaa ni yɔɔ ŋtayaa lɛ mli lɛ he gbɛjianɔtoo lɛ tsuɔ nii, ni ekɛ VELFLEX ŋtayaa ni yɔɔ srɔto lɛ fataa he, koni enyɛ etsu ŋtayaa lɛ he nii jogbaŋŋ. Nɛkɛ gbɛ ni atsɔɔ nɔ afee nɛɛ baanyɛ adamɔ hulutsoo tsakemɔi wuji ni yɔɔ valve lɛ mli lɛ po anaa. TORQSEAL triple eccentric disc lɛ hu yɛ gbɛ krɛdɛɛ ko ni etsɔɔ nɔ ebɔleɔ ehe ni eyeɔ ebuaa koni disc lɛ nɔ ni akɛtswaa lɛ lɛ ashɛ sɛi lɛ he pɛ yɛ be mli ni eshɛɔ valve ni agbe naa lɛ he lɛ, ni ekɛ ŋmɔlɔ akatswa. No hewɔ lɛ, torque ni akɛkpaa valve lɛ baanyɛ aha diski lɛ ashɛ sɛi ni kɛ mla lɛ kpãa gbee lɛ he, ni ekɛ wedge effect ni fa bɔ ni sa aba yɛ valve ni agbe naa lɛ shihilɛ mli, yɛ be mli ni ehaa diski lɛ kɛ sɛi ni akɛkpaa lɛ he lɛ fɛɛ feɔ ekome. Bɔ ni valve sɛi lɛ yeɔ mla nɔ lɛ haa valve lɛ gbɔmɔtso lɛ kɛ diski lɛ náa “he-tsakemɔ” nitsumɔ, ni no haaa diski lɛ akamɔ yɛ be mli ni hulutsoo be lɛ tsakeɔ lɛ. Nibii ni akɛwoɔ dade ni akɛwoɔ mli lɛ mli lɛ baanyɛ atsu nii shii abɔ ni etsuɔ nii jogbaŋŋ yɛ hulutsoo be ni baa shi waa mli. VELFLEX ni ji eccentric ni ji enyɔ lɛ haa anyɛɔ atsuɔ valve lɛ he nii yɛ Intanɛt lɛ nɔ oya ni efee mlɛo. Shidaa aha sɛɛ shĩa lɛ, abaanyɛ akwɛ sɛi lɛ kɛ diski lɛ mli loo akwɛ nɔ tɛ̃ɛ, ni ehe ehiaaa ni ajie actuator loo nibii krɛdɛɛi ni akɛtsuɔ nii lɛ.
Tianjin Tanggu Nu-She Valve Co.,ltdlɛ miifi tsɔnei ni etee hiɛ waa ni haa mɔ he jɔɔ lɛ asɛɛ, ni nɔ ni fata he ji tsɔne ni haa mɔ he jɔɔ lɛwafer ŋmei valve, Lug ŋmei valve, Flange enyɔ ni yɔɔ ŋwɛi ŋmei valve, Flange enyɔ ni yɔɔ srɔto yɛ kɔmpiuta valve,Y-fɔmɔ nii, valv ni akɛtoɔ he,Wafer plɛte enyɔ kwɛmɔ valve, etsara nɔ.
Be ni akɛbaatsu nii: Manyawale-11-2023
