Zithini iiValve zeCryogenic: Uhlobo, Ukusetyenziswa (LNG, Ezonyango)

1. Intshayelelo kwiiValve zeCryogenic

Iivalvu zeCryogenicziivalvu ezenzelwe ngokukodwa ezisetyenziselwa ukulawula ukuhamba kolwelo olubandayo kakhulu kunye neegesi, ngesiqhelo kumaqondo obushushu angaphantsi-40°C (-40°F)Ezi valve zibalulekile ekuphatheni amashishiniigesi yendalo enyibilikisiweyo (LNG), initrogen engamanzi, ioksijini, ihydrogen, kunye nehelium, apho iivalvu eziqhelekileyo zingaphumeleli ngenxa yoxinzelelo lobushushu, ukuqhekeka kwezinto, okanye ukungaphumeleli kwetywina.

Ukuqinisekisa ukusebenza ngokukhuselekileyo nangokufanelekileyo, iivalvu ze-cryogenic zenziwe ngezinto ezizodwa, iziqu ezinde, kunye neendlela ezikhethekileyo zokutywina ukuze zikwazi ukumelana namaqondo obushushu aphantsi kakhulu ngaphandle kokuvuza okanye ukungasebenzi kakuhle koomatshini.

2. Iimpawu eziphambili zolwakhiwo lweeValve zeCryogenic

Ngokungafaniyo neevalvu zesiqhelo, iivalvu ze-cryogenic ziquka izinto ezithile zoyilo lokusingatha ukubanda okukhulu:

2.1 Ibhonethi Eyongeziweyo (Ulwandiso lweStem)

- Ithintela ukudluliselwa kobushushu ukusuka kwindawo esingqongileyo ukuya emzimbeni wevalvu, inciphisa ukwakheka komkhenkce.

- Igcina ukupakisha kunye ne-actuator kubushushu obuqhelekileyo ukuqinisekisa ukusebenza kakuhle.

2.2 Izixhobo zokutywina ezikhethekileyo

- UkusetyenziswaI-PTFE (Teflon), i-graphite, okanye izitywino zesinyithiukugcina ukuvalwa okuqinileyo nokuba kushushu kakhulu.

- Ithintela ukuvuza, nto leyo ibalulekileyo kwiigesi ezinobungozi ezifana ne-LNG okanye i-oksijini engamanzi.

2.3 Izinto Zomzimba Eziqinileyo

- Yenziwe ngeintsimbi engatyiwayo (SS316, SS304L), ithusi, okanye ii-alloys ze-nickelukumelana nokubuthathaka.

- Ezinye iivalvu ze-cryogenic ezisebenzisa uxinzelelo oluphezuluintsimbi eyenziweyoukuze ufumane amandla angakumbi.

2.4 Ukufakwa kweVacuum (Ukhetho xa ubanda kakhulu)

- Ezinye iivalvu zisebenzaiijakethi zevacuum ezibiyelwe ngodonga oluphindwe kabiniukunciphisa ukungena kobushushu kwiindawo ezisebenzisa ubushushu obuphantsi kakhulu.

3. Uhlu lweeValve zeCryogenic

3.1 Ngokwezinga lobushushu

3.2 Ngohlobo lweValve

- Iivalvu zeBhola zeCryogenic– Eyona ilungileyo xa ivaliwe ngokukhawuleza; ixhaphakile kwiinkqubo zegesi ze-LNG kunye nezemizi-mveliso.

- Iivalvu zeSango leCryogenic– Isetyenziselwa ulawulo oluvulekileyo/oluvaliweyo olupheleleyo kunye nokunciphisa uxinzelelo oluncinci.

- Iivalvu zeGlobe zeCryogenic– Nika ulawulo oluchanekileyo lokuhamba kwamanzi kwiipayipi ezibonisa ukungcola.

- Iivalvu zokujonga iiCryogenic– Nqanda ukubuya kwamanzi kwiinkqubo zobushushu obuphantsi.

- Iivalvu zebhabhathane eziKhanyayo– Ilula kwaye incinci, ilungele iipayipi ezinkulu. 

3.3 Ngesicelo

- Iivalvu ze-LNG– Phatha igesi yendalo enyibilikisiweyo kwi-162°C (-260°F).

- Inqwelo-moya kunye noKhuselo– Isetyenziswa kwiinkqubo ze-rocket fuel (i-hydrogen kunye ne-oxygen engamanzi).

- Ezonyango kunye nezeSayensi– Ifumaneka kwiimashini zeMRI kunye nendawo yokugcina izinto ezibonisa ukukhanya.

- Ukucubungula iGesi kwiShishini– Isetyenziswa kwizityalo zokwahlula umoya (ioksijini, initrogen, iargon).

4. Iingenelo zeeValve zeCryogenic

✔Ukusebenza okungenabungozi ekuvuzeni– Ukuvalwa okuphucukileyo kuthintela ukuvuza kwegesi okuyingozi.

✔Ukusebenza kakuhle kobushushu– Iibhonethi ezinde kunye nobushushu kunciphisa ukudluliselwa kobushushu.

✔Ukuqina– Izinto ezikumgangatho ophezulu ziyamelana nokuqhekeka nokuqhekeka.

✔Ukuthobela uKhuseleko– IdibanaI-ASME, i-BS, i-ISO, kunye ne-APIimigangatho yokusetyenziswa kwe-cryogenic.

✔Ukugcinwa Okuphantsi– Yenzelwe ukuthembeka kwexesha elide kwiimeko ezinzima.

5. Umahluko oPhambili phakathi kweeValve zeCryogenic kunye nezeOrdinary

Isiphelo

Iivalvu zeCryogeniczibalulekile kumashishini ajongene nolwelo olushushu kakhulu. Uyilo lwabo olukhethekileyo—oluqukaiibhonethi ezinde, izitywino ezisebenza kakuhle, kunye nezixhobo ezihlala ixesha elide—ziqinisekisa ukusebenza ngokukhuselekileyo nangokufanelekileyo kwiimeko ezinzima. Ukuqonda ulwahlulo lwazo, iingenelo, kunye nomahluko kwiivalvu ezisemgangathweni kunceda ekukhetheni ivalvu efanelekileyo yokusetyenziswa kwe-cryogenic.