Masu Iyara Mai Barkawa na Kwayar Brass don Hanyoyin Ruwa da Gas

Takaifawa mai zurfi zuwa iyakar haƙiri a cikin tsarin ruwan sharuwa da tsarin gasin karanci mai karanci

Yaushe brass ke takaifawa zuwa dezincification a cikin ruwan neri, wanda bayaƙe chloride

Alabbarin ball brass sun dabi'u ne mai tsokoki-zinc, inda zinc ke kama da wataƙila 15% ko ka˜nu. Wannan nukarin ya haɗuwa yana kawar da abin mamaki na dezincification a cikin shirin ruwan gida wanda aka yi lafiya. Lokacin da ake amfani da shi a cikin ruwa mai zurfi wanda zama tausayi da chloride, brass yana hada garuruwa mai sauƙi mai nisa-ruka wanda yana gyara nafasansa, kuma yana durcewa leaching mai zurfi na zinc. Don zabarai brass mara sarangi, masoyin yanki suna ƙara arsenic ko antimony domin kawo sauya. Wadannan kayayyaki sun dace da ma'auni da aka hada ta ASTM B858 kuma suna nuna nettofi mai sauƙi a lokacin yanayin test. Laburan sun bayyana karshen kama da 80% reduction a cikin dezincification dibu da standard brass, kuma samfurori suna tafi almost no weight koda suka kasance 10 rana a cikin yanayin test.

Hali na passivation a gas inert (LP/natural gas) akwai yanayin lautu na seawater

Idanuwa a wani tsarin gas na zurfi gudaɗi da kayan oksijin suna kama da tausayi 0.5 per million kuma har zuwa ba za ta fada 120 daraja selsias, valves na brass (kumburi) suna kafa furuwa daga copper oxide masu mahimmanci akan saufinsu. Waɗannan furuwa suna tafi daidai ba a buƙatar gwajalumo ko abubuwa biyu ba. Yanzu, irin waɗannan abubuwa za su fara magana idan mukuwa kan samar da ruwan samson. Kayan mai zunfawa a cikin ruwa shine mai yawa da tausayi 19,000 ppm wanda ke furciwa waɗannan layer masu kari. Ayunan chloride daga ruwan samson suna shigo cikin oxide film kuma suna fara kirkirar cututtuka akan saufin kumburi. Muna ganin rashin girma ya ƙarewa ne tsakanin karshen 5 zuwa 8 lokuta ga wuraren da aka amfani da gas. Don dalilai waɗannan babu ingginia doma zasu yi amfani da standard brass valves a cikin wadannan yanayi na ruwa idan ba suka gwajala. Amma idan aka ba su muryar gwajalo a cikin tsarin gas brass valves suna tafi daidai labari da rashin korosi.

Kunshin Tare da Kula da Kwabo na Girma-Kwabo

Samaruwar Kogin Brass Ball Valve tare da Kunshi na PTFE

Kogin brass ball valves tare da kunshin PTFE suna ba da kwabo mai zurfi ga kula, kamar yadda suka shafi canjin girma da halayen girma mai hankali. Wadannan kogin na iya samun girmomai hada zuwa ga 4 MPa (kamar 580 psi) da girma ta hada zuwa ga 175°C (kamar 347°F) ba a sake shiga abubuwan da suka haifar da su. Lokacin da aka yi iman baya kogin da yawa da elastomer seals, waɗanda PTFE suna farfado sosai a alakar da hoton ruwa ko saturated steam. Me? Saboda PTFE yana tsayin tsanki a girma mai hankali, yana amfani da friction karanci yayin aiki, kuma bai canza tsakartaka a lokaci mai iyaka ba yayin da aka yi stress cycles. Nau'in hanyo shine ya dace saurin gwajin kwabo da kwabo mai kwabo, kamar yadda ya kasance a cikin samar da expansions da contractions a halayen sayenshin da zaune.

Gwadaɗawa da Ingancin Tsarin Buguje

Tare da ma'aunin ASTM F1970, wadanda suka sami sanarwar tushen kwallon birni na brass suna tsaddadar yawan gudanarwa ta hanyar karshen 0.001 mL kowace mintuna, kamar yadda suka dawo akan 10,000 shiga da fita cikin kai tsaye. Wannan yake nufin karshen abu daya kawai za a iya guduwa kowace awa, wanda yake nuna yadda wadannan kwalluka ke bada ingancin sauyin da ke shiga sosai kafin karshen kowane cuta akan sarari. Harshe mai kyau kuma ya taimaka, saboda brass ke karkasa hankali da karkashin hankali. Wannan abu yake kama da rashin rashin halayyin da ke bayyana canjin girma na hankali, kuma yake kama da kanso muhimmiyar gudanarwa ta gas kamar yadda ba za a iya karshen abu daya bane don dalilin kariya.

Sanarwa ta Kariya da Kiyaye Canje-Canje don Gona’i Mai Mahimmanci

Zaɓi-zabin NSF/ANSI 61 (ruwan ran) da CSA B125.1 (samar da gas)

Idan ake furu babban kwalitatin kwari na brass da aka shigar da shuka mai tsada rawa ko gas mai tsada abubuwa a North America, dole ne su dawo da gwaji mai zurfi game da lafiya da kari. Standard din NSF/ANSI 61 yana nuna ko kayayyakin, amma a cikin hanyoyin da kayayyakin brass daban-daban, za su ba da abubuwa mai zurfi kamar lead ko cadmium cikin ruwanmu na bidiyo. Ga wadanda ke so su yi amfani da wajen da aka yarda, kayan brass dole ne su kasance taushe da 0.25% lead saboda tallafin EPA daga 2023. A hanyar biyu akwai alama mai muhimmanci wasu ta CSA B125.1 wacce taimakawa wadannan kwari su kasance suna tsayar da gas idan suke ayyukan gas mai tsada ko LP gas. Wadansu actually yin gwaji game da rukunin gas ta hanyar helium kuma richiya cinikin da aka buƙata zai kasance da ƙasa 0.001 mL per minute. Iko dabbakon tallafi suna richiyawa sanarwa mai zurfi game da wurin da kayayyaki su daga, gwajiyan kusan kowane mahaifinta, da sauya sashin gwaji kowace uku shekara. Kwari wadanda bai dawo da wannan standard ba za su iya kiyasta abin da suke kansu kuma su ba da karancewa masu girma da ƙasa $50k kowace lokaci da wanda bakka ya samu. Don haka waɗansu masu aiki duk suna so suyi amfani da kayan ajiye-ajiye da aka kira da suwa a cikin ayyukan gina abubuwa mai muhimmanci.

Tushe na Amfani da Kwayoyin Rarraba

Tatsuniyar kewayon gudunma a cikin yawan rarraba (ƙasa da 1.5 N·m) a tsakanin 500–10,000 rarraba kusa da ISO 5211

Zaƙurƙun shafin ginya masu daidaitawa suna aiki da kyau saboda suka canza kai tsakiya a cikin yawan gwargwado. Waɗannan shafukan ginya suna buƙatar torque mai yawa da tausayi 1.5 Newton meters don aiki, ko kuma bayan 10,000 cycles bisa zuwa zuwa tests da aka sanya ta ISO 5211 standards. Wanda ya sa waɗannan shafukan ginya su kasance so na iya aiki shine saboda suna aiki daidai ba tare da wane nau'in port da suka shigar da ita ba, wanda yake nufin abokan aiki babu za a tafi ko su shaƙe a cikin wasan gwamnati ko sararin ruwa a birni. Dalilin waɗannan shafukan ginya su zama bata basso shine yayin da iri uku na dalilai su yi aiki tare. Brass natsara yake da alamar da ke kare friction, yayin da dukkia suke cikin anfani suna da kyau a cikin takalmomi. Sai dai kuma akwayi PTFE mai kyau ana amfani da ita don sharuddan sadarwa, don haka babu kimnin dan adam don amfani da kayan rage ko kawo gyara-gyaran lokaci lokaci. Tambayoyin sharuɗɗan yana nuna cewa yanayin torque ba ya canzawa sosai a cikin 500 zuwa 10,000 ayyuka. Wannan yana nufin shafukan ginya zasu zama fi maƙamiyar shekara biyu ba tare da buƙatar gyara-gyaran a cikin applications na ruwan madugu, yana kare kuduren lokaci lokaci ba tare da yin ruwan sarari ko karanci ba.