ʻO ka valve palekana: ʻO nā mea waiwai o nā loea

Hōʻikeʻike

A pahu hopu palekana ʻo ia kekahi o nā mea kōkua koʻikoʻi koʻikoʻi i nā ʻōnaehana ʻoihana, hōʻoia i ka hana palekana ma ka hoʻokuʻu ʻana i ke kaomi keu.

Me ka palekana ole Nā Vilves, nā ʻoihana e mālama i nā kinoea kiʻekiʻe, nā wai, aiʻole ka mahu—e like me ka aila a me ke kinoea, mana pā'āʻu, Ke kālepaʻana, a me nā lāʻau lapaʻau—e kū i ka pilikia kiʻekiʻe o hemahema lako, pahū, a me nā leaks pōʻino.

ʻOi aku ka nui o nā pahu palekana ma mua o nā mea mīkini wale nō; ʻo lākou ka palekana hope ke hāʻule nā ​​ʻōnaehana mana kaomi ʻē aʻe.

Wahi a ka U.S. Papa Palekana Kemika (CSB), aneane 20% o nā ulia ʻoihana i nā ʻōnaehana kaomi ua hoʻopili ʻia i nā mīkini hoʻoluhi kaomi kūpono ʻole, ʻO Underscoring ko lākou mea nui.

1. He aha ia ka Valve Palekana?

A pahu hopu palekana he mea hoʻokuʻu kaomi ʻakomi i hoʻolālā ʻia e wehe i ka wā i ʻoi aku ai ke kaomi i loko o kahi ʻōnaehana ma mua o ka palena i koho mua ʻia, ʻike ʻia ʻo ka hoʻonoho kaomi, a e hoʻihoʻi hou i ka wā e hoʻi ai ke kaomi ʻōnaehana i kahi pae palekana.

Ke hana nei e like me ka laina pale hope e hoomalu i na lako, Poolali, a me nā limahana mai nā kūlana overpressure, ka mea e hiki ai ke alakaʻi i ka hemahema mechanical, pahū, a i ʻole nā ​​kahe wai weliweli.

ʻO nā hiʻohiʻona nui o kahi pahu palekana:

• Hana 'akomi: ʻAʻole koi i ka mana o waho a i ʻole ka ʻōnaehana mana e hana.
• Pane wikiwiki: Wehe koke ʻia ke ʻoi aku ke kaomi ma mua o nā palena palekana.
• Pani-Pono: E noho hou ma hope o ka hoʻokuʻu ʻana i ke kaomi keu.

KAHAIAU:

Ua hoʻokomo ʻia nā kiwi palekana mua i ka 18ke kenekulia i ke au enekini mahu mua e pale aku pahū paila, ʻo ia ka pilikia ʻoihana maʻamau.

Ua ulu nā hoʻolālā hou e hoʻokomo pūnāwai, Pilot-Nerated, a me nā ʻano bellows kaulike, mālama i nā koi ʻoihana paʻakikī.

2. Ku'ina Hana o ka Valve Palekana

A pahu hopu palekana hana ma ke ʻano he hana hoʻoluhi paʻi palekana palekana, wehe ʻakomi i ka wā i ʻoi aku ai ke kaomi i loko o kahi ʻōnaehana ma mua o ka mea i koho mua ʻia hoʻonoho kaomi a pani i ka manawa e hoʻi ai ke kaomi i kahi pae palekana.

ʻO kāna hana nui ka pale ʻana i ka pōʻino o nā moku kaomi, Poolali, a i ʻole nā ​​mea hana ma ka hoʻokuʻu ʻana i ka wai nui (aila, māhu, aiʻole ka wai) i ka lewa a i ʻole kahi puka palekana.

Hoʻoponopono ʻia ka loina hana e kahi kaulike maʻalahi ma waena o ke kaomi ʻōnaehana, ikaika mechanical (E.g., ʻo ka hoʻopaneʻe puna a i ʻole ka mana hoʻokele), a me ka hoʻopaʻa paʻa ʻana o ka noho valve.

Nā Mekani Nui o ka Hana

Hiki ke hoʻokaʻawale ʻia ka hana o ka valve palekana i ʻekolu pae-pani ana, wehe ana (hāpai), a noho hou-ʻo kēlā me kēia mea i hoʻomaluʻia e nā pilina ikaika kūikawā a me ka hoʻoikaika ikaika.

• Kūlana paʻa: Hoʻopaʻa ʻia kahi disc sila e pili ana i kahi noho e kahi puna a kaumaha paha, kūʻē i ka ʻōnaehana kaomi.
  ʻO ka ikaika pani (puna/kaumaha) ua calibrated e kaulike i ke kaomi ʻōnaehana ʻae ʻia (hoʻonoho kaomi).
• Wehe (Hana Pop): Ke ʻoi aku ka ikaika o ka ʻōnaehana ma mua o ke kaomi i hoʻonohonoho ʻia, ʻoi aku ka ikaika o luna o ka diski i ka ikaika pani, ka hāpai ʻana i ka disc e hoʻokuʻu i ka wai.
  No nā kiwi puna, hiki koke mai kēia (pop) e hōʻemi i ka hōʻiliʻili kaomi.
• Pani (Noho hou): E like me ka emi ʻana o ke kaomi i ka hoʻokau hou ʻana (hoʻonoho i ke kaomi e hoʻemi i ka puhi ʻana), hoʻopaʻa hou ka mana pani i ka diski, hoʻihoʻi i ka pono ʻōnaehana.

Nā ʻāpana hana koʻikoʻi

• Hoʻonoho i ke kaomi: ʻO ke kaomi calibrated kahi e hoʻomaka ai ke kiwi e hāpai. Wahi a Asmime bpvccce a viii, hoʻonohonoho maʻamau kēia 10% maluna o ka MAWP (ʻO ke kaomiʻana i ka hana).
• Kahe ana: ʻO ka nui o ka hoʻokuʻu ʻana (E.g., kg/h no ka mahu, scfm no ke kinoea), hoʻoholo ʻia e ka nui orifice a me ka ʻokoʻa kaomi. Kii 520 wehewehe i nā ʻano helu no ka mana kahe e pono ai.
• Pane pane: ʻO ka manawa i lawe ʻia no ka wehe piha ʻana ma hope o ka nui o ke kaomi i hoʻonohonoho ʻia. Ma nā noi koʻikoʻi, manawa pane o <0.1 kekona mea pono.
• Paʻa Paʻa hope: Hiki i ka valve ke mālama i ka pololei ʻoiai ke kaomi ʻana i lalo. Nā hoʻolālā kaulike-bellows hoʻohana ʻia i loko o nā kaiapuni kiʻekiʻe-backpressure.

3. Nā ʻano o nā pāpaʻi palekana

Hoʻokaʻawale ʻia nā valve palekana ma muli o kā lākou mīkini hoʻokō, nā hiʻohiʻona hoʻolālā, a me nā noi noi.

Hoʻolālā ʻia kēlā me kēia ʻano e hoʻoponopono i nā kūlana hana kikoʻī e like me ka pae kaomi, keka ao, a me ke ʻano wai.

ʻO nā pāpaʻi palekana i hoʻopiha ʻia i ka puna

ʻO ka hoʻolālā maʻamau, Hoʻohana nā kiwi hoʻopaʻa i ka pūnāwai i kahi pūnāwai i hoʻopaʻa ʻia e hoʻopaʻa i ka disc valve i ka noho.
Ke ʻoi aku ka nui o ka ʻōnaehana ma mua o ke kaomi i hoʻonohonoho ʻia, lanakila ka ikaika i ka ʻāʻī puna, e hāpai a hoʻokuʻu i ka wai.

• Nā hiʻohiʻona & Noi:

• • Hoʻolālā maʻalahi a paʻa.
  • Pinepine i loko nāʻaiʻana, Nā Hō'ī ea Air, a me na moku hana.
  • Paʻi paʻi: 10 psi e luna 10,000 Psi.
  • Loaʻa me nā helu puna like ʻole e hoʻohālikelike i nā kaomi hoʻonohonoho like ʻole.

• Loaʻa: Maʻalahi e hoʻouka a mālama, hilinaʻi ma lalo o nā kaomi fluctuating.

Pilot-Operated Safety Valves

Hoʻohana kēia mau kiwikā i ke kaomi ʻōnaehana no ke kōkua ʻana i ka hana valve nui ma o a pahu pailaka, nāna e hoʻomalu i ka wehe ʻana o ka pahu nui.

• Nā hiʻohiʻona & Noi:

• • Hāʻawi ka hōʻailona paʻa a he kūpono no nā ʻōnaehana e pono ai piʻi kiʻekiʻe me ka liʻiliʻi liʻiliʻi.
  • Kūpono no pono & Nā Pīpeku hau, ʻōnaehana mahu kiʻekiʻe, a me nā noi cryogenic.
  • Hiki ke lawelawe kiʻekiʻe backpressure ʻoi aku ka maikaʻi ma mua o nā hoʻolālā punawai.

• Loaʻa: ʻO ka mana kaomi pololei, liʻiliʻi liʻiliʻi no ka mana like, hoʻonohonoho liʻiliʻi kaomi ʻokoʻa.

ʻO nā pāpaʻi palekana wela

Hoʻolālā ʻia e pale i nā ʻōnaehana mai ka hoʻonuiʻana ma mua o nā hanana overpressure nui.
Wehe ʻia kēia mau kiwi ke piʻi ka mahana o ka wai, hoʻoulu ʻana i ke kaomi ma muli o hoʻonui wai i nā ʻōnaehana pani.

• Nā hiʻohiʻona & Noi:

• • Maʻamau i loko nā mea hoʻomehana wai wela, nā pahu hau, a me nā mea kālepa wela.
  • ʻOi aku ka liʻiliʻi o ka hoʻokuʻu ʻana ma mua o nā kiwi palekana maʻamau.

• Loaʻa: Pono no nā ʻōnaehana liʻiliʻi me nā puʻu puʻu wela kūloko.

Nā Pahu Palekana Palekana Bellows

E hoʻohui i kahi mea bellows e pale aku i ka hopena o hoʻopaʻa hope ma ka disc valve. Hoʻopaʻa kēia i ka hana paʻa a pale i ka neʻe ʻana o ke kaomi.

• Nā hiʻohiʻona & Noi:

• • Hoʻohana ʻia i nā ʻōnaehana me hoʻololi a kiʻekiʻe paha ke kua, e like me resineries, nā lāʻau kanu lāʻau, a Nā laina Steam kiʻekiʻe.
  • Hiki ke lawelawe nā wai ʻawaʻawa a ʻino paha ke hui pū me nā mea kūikawā e like me Monel a i ʻole Inconel.

• Loaʻa: ʻO ke kaomi wehe paʻa, pale i nā waiho ʻino ma ka pūnāwai.

Palekana Kokua Valves vs. Nā Paʻi Paʻi Paʻi

• Nā Pahu Palekana: Hoʻolālāʻia no nā wai hoʻopili (E.g., māhu, aila, mahu). ʻO lākou e hāmama loa ma ke kaomi ʻana.
• Nā Pahu Hoʻomaha: I hoʻohana no wai hiki ole ke hoopiliia (E.g., nā wai). Hāmama lākou mālie, ka ʻae ʻana i ka hoʻokuʻu ʻana i ka wai.
• ʻO nā pahu hoʻomaha palekana: Nā hoʻolālā Hybrid e hana ana no nā kinoea a me nā wai.

4. Nā mea hana a me ke kūkulu ʻana i nā kiwi palekana

ʻO ka hana a me ka hilinaʻi o kahi valve palekana e hoʻoikaika nuiʻia e nā mea i hoʻohanaʻia i kāna hana.

Pono nā pahu palekana e kū kaumaha kiʻekiʻe, mahalaha loa, nā wahi kūlike, a me ke kaumaha mechanical hou, ʻoiai e mālama pono ana i ka sila a me ka pane.

ʻO ke koho o nā mea e pili ana i ka ʻano wai (aila, māhu, wai), Ke hoʻokō nei, Lumi mahalaha, a me ka launa kemika.

Nā mea kino maʻamau

ʻAihue kīwī (Astm A216 WCB, A105):

• I hoʻohana nuiʻia no nā noi maʻamau e like me nā ʻōnaehana mahu a me nā paipu ʻoihana.
• ʻO ka ikaika a me ka paʻakikī a hiki i ~425 ° C (800° F).
• Kūʻai-pono akā hāʻawi ke kū'ēʻana i ka paleʻana.

Kila kohu ʻole (Astm A351 CF8M, 304/316):

• Kū'ē kiʻekiʻe i Kuupuiawi, oxiyan, a me nā kiʻekiʻe kiʻekiʻe (A hiki i 600 ° C / 1110° F).
• Makemake ʻia ma Kekau, petrochemimical, a me nāʻoihana meaʻai.
• 316 kila kohu ʻole, me ka mybdelum, hāʻawi i ke kū'ē maikaʻi i nā chloride a me nā kaiapuni ʻakika.

SG Hao (Hao Spheroidal Graphite / Ui):

• Hoʻohui i ka ikaika mechanical maikaʻi a me ke kūpaʻa haʻalulu.
• Maʻamau i loko ʻōnaehana kaomi waena, E.g., nā hana wai a me ka HVAC.

keleawe a me ke keleawe (ASTM B61, B62):

• Ke kū'ē neiʻo Corrosion Corrossion, nui loa noi kai a wai paha.
• Hoʻohana maʻamau i hoʻohaʻahaʻa- i nā ʻōnaehana kaomi waena a nā wahi hoʻomaʻemaʻe.

Nā'Ānela kūikawā (Molol, Actoel, Hailani, Titanium):

• Hoʻohana ʻia no ʻino loa a i ʻole nā ​​kūlana wela loa, e like me of 3Ikeha, Cessogen, a i ʻole nā ​​noi hoʻoheheʻe waika.
• Paʻa loa ʻo Monel ka wai kai a me ka waika hydrofluoric.
• Hiki i ka Inconel ke pale i nā mahana ma luna o 1000°C i nā ʻōnaehana kinoea wela wela a i ʻole ka wela wela.

ʻOki a me nā mea noho

• ʻO nā noho metala-a-metal (Kila kohu ʻole, Lealea):

• • Kūpono no mokumahu wela kiʻekiʻe a kinoea paha noi.
  • ʻO nā uhi stellite (huila kobalt-chromium) holomua ka ʻili ʻana a me ka ʻaʻahu.

• Sila palupalu (Ptfe, Epdm, Vithaton):

• • Hāʻawi ʻO ka hōʻailona paʻa-paʻa no ka wai a i ʻole ke kinoea haʻahaʻa.
  • Kūpono no meaʻai, Ka Makani, aʻo nāʻoihana kūlohelohe kahi koʻikoʻi ka leakage ʻole.
  • kaupalena i nā pae wela haʻahaʻa (<200° C).

Nā'āpana kūloko

• Pūpuwe: Hana ʻia maʻamau kiʻekiʻe-ikaika kuhiliʻole kila a Inconel no ka corrosion a me ka wela.
• Disc/Plug: He kila kuhiliʻole paʻa a i ʻole stellite i uhi ʻia no ka lōʻihi ma lalo o ka hopena mau.
• Bellows (no na kiwi kaulike): Hana ʻia mai Inconel a i ʻole ke kila kila e pale aku i ka corrosion a me ka hopena hope.

5. Nā Kūlana Koʻikoʻi a me nā palapala hōʻoia o ka pale palekana

Pono nā valve palekana e pili i nā kūlana koʻikoʻi e hōʻoia i ka hilinaʻi a me ka hoʻokō:

• Asme Boiler & ʻO ka pā'ālua pā'ālua (Mahele I & Viii)
• Nā Kūlana API (Kii 520, Kii 526, Kii 527)
• Iso 4126 – Nā Kūlana Kikowaena Palekana o ka Honua
• Ped (Aʻoaʻo Paʻi Paʻa, EU)

ʻO ka hoʻāʻo ʻana noho paa, hoʻonohonoho i ka hōʻoia kaomi, kaha kahe ana, a me nā ana manawa pane.

6. Nā hoʻohana ʻana i nā pāpaʻi palekana

Pāʻani nā kiwi palekana a kuleana koʻikoʻi i ka pale ʻana i nā mea hana, limahana, a me ke kaiapuni ma ka pale ʻana i ka overpressure ma nā ʻōnaehana ʻoihana like ʻole.

ʻO kā lākou hiki ke hoʻomaha maʻalahi i ka piʻi nui e hōʻoia i nā kaʻina hana i loko o nā palena hana palekana, e hoemi ana i ka pilikia o na pahū, pōʻino lako, a i ʻole nā ​​leaks weliweli.

Ailaʻaila a me nāʻoihana

• Pale Paʻi: Hoʻokomo ʻia nā kiwi palekana ʻōnaehana paipu, nā mea hoʻonohonoho, a me nā pahu mālama no ka pale ʻana i ka piʻi ʻana o ke kaomi ma muli o nā hemahema o ka hana a i ʻole nā ​​​​hana hana hewa.
• ʻO nā Rigs Offshore a me Onshore Rigs: Hoʻohana ʻia e pale i nā lako wili a me nā ʻōnaehana subsea, kahi e hiki ai i ka overpressure ke hana i nā pōʻino.
• Cryogenic a me LNG Pūnaehana: ʻO nā kiwi palekana i hoʻolālā ʻia no nā kaiapuni haʻahaʻa haʻahaʻa a me ke kaomi kiʻekiʻe mālama pono i nā kinoea wai.

Mana pā'āʻu

• ʻO nā Boilers and Turbines: He mea koʻikoʻi nā valve palekana Nā lawehala ōlohiʻana, ka pale ʻana i ka pahū ʻana o ka paila a me ka mālama ʻana i nā turbine mai ke kaomi mahu nui.
• Ka ikehu hou: I nā mea kanu lāʻau, pale ka pale ʻana i nā ʻōnaehana wai hoʻololi i ka wela mai ka wela a me ke kaumaha.

ʻO nāʻoihana a me nāʻoihana holoholona

• Na Reactors a me na Moku Pumi: Hoʻopaʻa nā pahu palekana i nā reactor kemika a me nā kolamu distillation mai nā hopena holo a i ʻole ke kūkulu ʻia ʻana o ke kaomi i manaʻo ʻole ʻia.
• Nā wai ʻino: ʻO nā kiwi i hana ʻia mai nā mea kū i ka corrosion (E.g., Molol, Hailani) hoʻohana ʻia no mea ʻino a ʻino paha.
• Laina Kaʻina Hana: Mālama nā ʻōnaehana kōkua i ka palekana i ka wā o ke kahe ʻana a i ʻole ka hoʻopaʻa ʻana.

ʻOihana ʻAi a me nā ʻoihana lāʻau lapaʻau

• Nā noi hoʻomaʻemaʻe:ʻO nā pahu palekana palekana he mea nui no ka meaʻai a me ka mea inu, hōʻoia i ka hoʻokō ʻana i nā kūlana FDA a me EHEDG.
• Kaiapuni ma'ema'e: ʻO nā pahu palekana i ka hana ʻana i nā lāʻau lapaʻau e mālama i ka mana kaomi me ka ʻole e hōʻemi i ka sterility huahana.
• Palekana Haʻahaʻa: Hoʻohana ʻia i nā laina hana no ka hau, Poliuawaena co₂, a i ʻole nā ​​ʻōnaehana pasteurization.

HVAC a me nā ʻōnaehana wai

• ʻO nā paila hoʻomehana: Kāohi nā pahu palekana nā pahū paila a i ʻole nā ​​hanana overpressure i nā ʻōnaehana HVAC pāʻoihana a me nā hale noho.
• Nā Pūnaehana Ea Paʻa: E pale i nā mea hoʻokipa ea a me nā compressors mai ke kūkulu ʻana i ke kaomi ma muli o nā hemahema regulator.
• Nā Hana Wai Kaona: Hoʻopili ʻia i loko nā hale hoʻoheheʻe, nā mea hoʻomehana wai, a me nā mea kōkua kōkua e pale aku i ka piʻi ʻana.

ʻO nā noi a me nā noi o Marina

• Na Boila Moku a me na Enekinia: He mea nui nā kiwi palekana i ʻōnaehana holo moana a me nā laina wahie e hōʻoia i ka hoʻokō ʻana i nā lula palekana IMO.
• Nā hanana lole: Mālama i nā mea hana e like me nā compressors, nā mea hoʻonohonoho, a me nā ʻōnaehana puhi ahi.

ʻEmi a me nā mīkini ʻenehana

• ʻO nā'āpana makani: Hoʻohana nā ʻōnaehana hydraulic i nā turbine makani i nā kiwi palekana e mālama ai paʻa hana palekana.
• Lako Kaumaha: Hoʻohana ʻia nā kiwi palekana ma nā kaomi hydraulic, nā mea hoʻohālikelike, a pimps e pale i ka pōʻino o ka hale ma muli o ke kaumaha.

7. Nā Pōmaikaʻi o nā Pahu Palekana

ʻO nā valves palekana he mau mea pono ʻole i nā ʻōnaehana ʻoihana ma muli o ko lākou mau mana kūʻokoʻa a me nā pono.

• ʻOkoʻa a hilinaʻi hoʻi i ka hoʻoluhi pilikia
  Hoʻohana ʻokoʻa nā pahu palekana me ka ʻole o ka mana o waho a i ʻole ka hana lima.
  Pane koke lākou i nā kūlana overpressure, hōʻoia i ka palekana wikiwiki o nā mea hana a me nā limahana.
• Hoʻolālā Pale-Pale
  Hana ʻia ma ke ʻano he laina pale hope loa, paʻa nā kiwi palekana i ke kūlana hāmama ke ʻoi aku ke kaomi ʻōnaehana ma mua o ka palena i kau ʻia, ka pale ʻana i ka pōʻino a i ʻole nā ​​pahū.
• Intertility ma waena o nāʻoihana
  Loaʻa i nā manaʻo like ʻole a me nā mea, Hiki ke hoʻopilikino ʻia nā valves palekana no nā media like ʻole (aila, māhu, nā wai), mahana, Pili, a me nā wahi kūpono,
  kūpono ia no nā ʻāpana e like me ka aila a me ke kinoea, mana pā'āʻu, Ke kālepaʻana, nā hale hakakala, a me hou aku.
• Ka Kahe Kiekie a me ka Mana Pumi Pono
  Hoʻolālā ʻia e lawelawe wikiwiki i ka nui o ka wai, mālama ʻia nā ʻōkuhi palekana i nā kaomi ʻōnaehana i loko o nā palena palekana, e hōʻemi ana i ka wā hoʻomaha o ka hana a me ka pōʻino i nā mea hana.
• Ka lōʻihi a me ke ola lōʻihi
  Hana ʻia mai nā mea paʻa a hoʻolālā ʻia no ke kaʻa paikikala hou, mālama ʻia nā kiwi palekana i ka hana no nā manawa lōʻihi ma lalo o nā kūlana hana paʻakikī.
• Maʻalahi o ka mālama ʻana a me ka hoʻāʻo ʻana
  Hiki ke ho'āʻo ʻia a hoʻopaʻa ʻia i ka nui o nā valve palekana, e ho'ēmi i nā kumukūʻai mālama a me kaʻaeʻana i ka mālama palekana i hoʻonohonohoʻia e hōʻoia i ka palekana mau.
• Kumukūʻai-kūpono
  Ma ka pale ʻana i ka pōʻino o nā mea hana a me ka manawa hoʻohaʻahaʻa ma muli o nā hanana overpressure, Hāʻawi nā valve palekana i ka mālama nui ʻana i ke ola o nā ʻōnaehana ʻoihana.

8. ʻO ka nui a me ke koho ʻana i ka valve palekana

ʻO ke koho ʻana a me ka hoʻonui ʻana i ka valve palekana kūpono he hana koʻikoʻi ia e hōʻoia i ka pale overpressure maikaʻi i nā ʻōnaehana ʻoihana.

ʻAʻole hiki i kahi valve kūpono ʻole ke hōʻoluʻolu pono i ke kaomi a i ʻole ke kumu o ka nalowale o ka huahana pono ʻole a me ka manawa haʻahaʻa hana..

ʻO ke kaʻina hana e pili ana i ka noʻonoʻo pono ʻana i nā ʻōnaehana ʻōnaehana, ʻano wai, a me nā kūlana hoʻoponopono.

ʻO nā mea nui e pili ana i ka hoʻonui ʻana i ka valve palekana

• Hoʻonoho i ke kaomi
  ʻO ke kaomi wehe o ka valve, a i ʻole e hoʻonoho i ke kaomi, pono e koho ʻia ma muli o ke kaomi hana ʻae ʻia o ka ʻōnaehana (Mawp).
  Maki, ua hoʻonoho ʻia ke kaomi i hoʻonohonoho ʻia ma luna a i ʻole ma luna iki o ka MAWP, e hōʻoia i ka hoʻoikaika wale ʻana o ka valve inā pono e pale i ka pōʻino.
• Hiki ke hoʻomaha (Ka Holo Waike)
  Pono e hiki i ka valve ke hoʻokuʻu i ka wai e hōʻemi i ke kaomi ʻōnaehana me ka palekana a me ka wikiwiki i ka wā o kahi hanana overpressure.
  Aia kēia mana i ka nui o ke kahe i manaʻo ʻia i ka wā o ka hoʻomaha, hiki ke pili i ke ʻano o ka wai (aila, māhu, aiʻole ka wai), kona wela, a me ke kaumaha.
• Na Waiwai
  Nā hiʻohiʻona e like me ka pae (wai, aila, a mahu paha), huakai, Viscosity, keka ao, a me ka corrosiveness e hoʻololi i ka hoʻolālā a me ka nui o ka valve.
  ʻo kahi laʻana, ʻOkoʻa ka helu kahe ʻana o ka mahu ma mua o ka wai ma muli o ka compressibility.
• Paʻa hope
  ʻO ke kaomi i lalo o ka puka valve pili i ka hana valve.
  Hoʻolālā ʻia kekahi mau valves e uku i ka backpressure (nā hoʻolālā bellows kaulike), aʻo nā mea ʻē aʻe e koi i nā hoʻololi i ka nui a i ʻole ke koho ʻana.
• Hoʻonohonoho Pūnaewele a me nā palena palekana
  Hoʻokomo ʻia nā manaʻo noʻonoʻo i nā hiʻohiʻona hiki ke hoʻoulu i ka overpressure (ka hoʻonuiʻana, hoʻokuʻu ʻia, ʻike ahi), a ua hoʻohui ʻia nā palena palekana i ka hiki o ka valve e hoʻokipa i nā kānalua.

Nā Kaʻina Hana a me nā Kūlana

ʻO ka helu ʻana o ka nui no nā kiwi palekana e hahai i nā ʻano maʻamau i wehewehe ʻia ma nā code ʻoihana e like me:

• Kii 520 / Kii 521
  Hāʻawi i nā kikoʻī kikoʻī a me nā kaʻina hana no ka hoʻonui ʻana i nā kiwi palekana no ke kinoea, māhu, a me ka lawelawe wai, hoʻokomo i nā waiwai wai, kūlana hoʻokuʻu, a me nā hiʻohiʻona valve.
• ASME Boiler and Pressure Vessel Code (BPVC), Ike VIII
  Hāʻawi i ke alakaʻi no nā mea hoʻomaha moku kaomi, e kuhikuhi ana i nā kaomi hoʻonohonoho ʻae ʻia, nā haʻawina hoʻokaumaha, a me nā ʻano nui.
• Iso 4126
  ʻO ke kūlana honua no nā mea palekana no ka pale ʻana i ke kaomi nui.

Nā Manaʻo koho Valve

• ʻAno Valve a me ka lawelawe lawelawe
  E koho i nā ʻano valve kūpono i ka pae wai a me ke kaiapuni hana (E.g., nā kiwi hoʻokele hoʻokele no ka mana kiʻekiʻe, hoʻouka pūnāwai no ka maʻalahi).
• ʻO nā kūpono kūpono
  E hoʻohālikelike i nā mea hana valve me ke kemika wai a me ka mahana.
• Nā kūlana hana
  E helu no ka wela wela, kaʻa paikikala, a me ka backpressure hiki.
• Hōʻoia a me ka hoʻokōʻana
  E hōʻoia i ka valve e hoʻokō i nā code ʻoihana kūpono a me nā kikoʻī o ka mea kūʻai aku.

9. ʻO nā hāʻule maʻamau a me ka mālama ʻana i nā pahu palekana

He kuleana koʻikoʻi ka valve palekana i ka palekana ʻoihana, akā, pili ko lākou hopena i ka mālama pono ʻana a me ka ʻike ʻana i nā hemahema i ka manawa.

Nā hāʻule maʻamau o ka pahu pale palekana

• ʻO ka ʻino a me ka hoʻohaʻahaʻa ʻana i nā mea
  ʻO ka ʻike ʻana i nā kemika koʻikoʻi, kaiwa, a hiki i nā wela kiʻekiʻe ke kumu i ka ʻino a i ʻole ka ʻāʻī ʻana o nā ʻāpana valve e like me ka noho valve, Disc, punawai, a me ke kino.
  Ke alakaʻi nei kēia i ka leakage, hoʻopaʻa pono ʻole, a me ka nalowale o ka pono o ka valve.
• Hoʻopili ʻana a i ʻole Jamming
  Waihona lepo, kūkaku, a i ʻole hiki ke hōʻiliʻili nā mea ʻē aʻe i ka noho valve a i ʻole nā ​​ʻāpana neʻe, e hoʻopaʻa i ka valve ma ke kūlana hāmama a pani ʻia paha.
  Hiki i kēia ke hopena i ka hiki ʻole ke wehe i ka wā overpressure a i ʻole ka leakage mau.
• ʻO ka Calibration kūpono ʻole a me ka hoʻonohonoho ʻana i ke kaomi ʻana
  Ua holo ʻoi aʻe ka manawa, Hiki i ka luhi puna a i ʻole ka lole mechanical ke hoʻololi i ke kaomi i hoʻonohonoho ʻia, wehe ʻia ka valve i nā kaomi hewa.
  Hoʻopilikia kēia i ka hana palekana ma o ka wehe mua ʻana (hoʻokuʻu pono ʻole) a lohi paha (pilikia i ka poino o na lako).
• Noho a me ke Sila Poino
  Hiki ke hoʻopau i ka noho valve a me nā sila i ka wehe hou ʻana a me ka pani ʻana, e hoʻololi i ka hiki o ka valve e hana i kahi sila paʻa a alakaʻi i ka leakage.
• Nā hopena hoʻopaʻa hope
  Hiki ke hoʻopilikia i ka hana ʻana o ka valve ka nui a i ʻole ka loli ʻana o ka backpressure i ka laina hoʻokuʻu, hiki ke hoʻomaka i ka wehe mua ʻana a i ʻole ka noho hou ʻana.
• Nā Hana Hana
  Nā pūnāwai naha, nā diski piko, a i ʻole nā ​​kumu ʻino i hana ʻia e ka luhi mechanical a i ʻole ka lawe hewa ʻole ʻana e hiki ke hana i ka valve.

Nā Hana Hoʻomaʻamaʻa no ka Valve Palekana

• Nānā mau a ho'āʻo
  ʻO ka hoʻāʻo hana manawa (E.g., hoao pop) pono e hana ʻia e hōʻoia i ke kaomi hoʻonohonoho, noho hou, a me ka hiki ke kahe.
  Manaʻo nā kūlana he nui i nā wā hoʻāʻo e pili ana i ke koʻikoʻi o ka hana, maʻamau i kēlā me kēia makahiki a i ʻole ʻelua makahiki.
• Hoʻomaʻemaʻe a me ka wehe ʻana i nā ʻōpala
  ʻO ka hoʻomaʻemaʻe ʻana i nā ʻāpana o loko a me ka hōʻoia ʻana i ka noho ʻole o ka valve a me ka disc mai nā waihona e kōkua i ka pale ʻana a me ka leakage.
• Puna a me ka Sila Pani
  Pono e nānā ʻia nā pūnāwai no ka ʻinoʻino a i ʻole ka nalo ʻana o ka haʻalulu a hoʻololi ʻia inā pono.
  Pono nā sila a me nā noho i ka nānā mau ʻana a me ka hoʻoponopono ʻana a i ʻole ke pani ʻia e mālama i ka paʻa.
• Hoʻoponopono Kalibration
  ʻO ka hoʻoponopono hou ʻana i ka valve i ke kaomi hoʻonohonoho pololei e hōʻoia i ka hana pololei a me ka hoʻokō ʻana i nā koi palekana ʻōnaehana.
• Lubrication o na apana nee
  ʻO ka lubrication kūpono e hōʻemi i ka ʻaʻahu a me ka friction ma nā mīkini valve, hoʻonui i ka pane a me ka lōʻihi.
• Palapala a me ka mālama moʻolelo
  Ka mālama ʻana i nā moʻolelo kikoʻī o ka nānā ʻana, Manaʻo, Hoʻoponopono, a he mea nui nā pani no ka hoʻokō ʻana i ke kānāwai a me ka mālama wānana.

10. Hoʻohālikelike me nā valves'ē aʻe

ʻO nā valve palekana he mau mea hana kūikawā i hoʻolālā ʻia no ka pale overpressure, akā kaʻana like lākou i kekahi mau hana like me nā ʻano valve ʻē aʻe e like me nā pahu hoʻomaha, Nā Wākē Kūʻai, a me na kiwi pani.

ʻO ka hoʻomaopopo ʻana i kēia mau ʻokoʻa e kōkua i ka wehewehe ʻana i kā lākou kuleana kūʻokoʻa i nā ʻōnaehana ʻoihana.

11. Hopena

ʻO nā kiwi palekana 'Ekā Hoʻopiʻi manaʻo no ka hōʻoia ʻana i ka hana palekana a hilinaʻi o nā ʻōnaehana ʻoihana.

Ma ka pale 'akomi i ka overpressure, mālama lākou i nā mea hana, limahana, a me ke kaiapuni.

Me nā koi ʻoihana e ulu nei—e like me ʻoi aku ka nui o nā kaomi hana, 'ūpō, a ʻoi aku ka ʻoi aku o nā kānāwai palekana-ʻo ka hoʻolālā a me ka mālama ʻana i ka valve palekana he pōhaku kihi o ka ʻenehana hou.

ʻO kēia: ʻO nā mea kūʻai aku kiʻekiʻe loa

ʻO kēia he mea lawelawe kūikawā no nā lawelawe kūʻai kūʻai, e hāʻawi ana i nā'āpana hana kiʻekiʻe no nāʻoihana e pono ai ke koi, Ke hoʻoikaika ikaika, a me ka pololei o ka dimensional.

Mai nā hale o nā mea hoʻokele i nā kino o nā kino machin, ʻO kēia Hāʻawi i nā hoʻololi o nā hopena hope e hoʻopau i nā hopena o nā mea e hoʻokō ai i nā kūlana honua olakino.

ʻO kā mākou Valve Casting Exptory:

Kāhaka kūʻai kūʻai No nā kino Valve & Trim

Hoʻohana i nāʻenehana casting was i hala e hana i nā geomet o nā geomet i loko o ka geomet.

Sand cread & Nā pāpale pīpī pale

Kūpono no ka medium i nā kino nui nui, flanges, a me nā bonnets-hāʻawi i kahi hopena kūpono-kūpono no nā noi pili pili, me ka aila & ʻO ka hanauna a me keʻano.

Ma ka hana pololei no ka bolve kūpono & Seal ingrity

CNC makiʻi o nā noho, KauwaiHua, a me nā hōʻailona hōʻailona e hōʻoia i kēlā me kēia'āpana i huiʻia a me nā koiʻana a me ka hōʻailonaʻana i nā pono hana.

Nā Kūlana Kūʻai no nā noi koʻikoʻi

Mai nā mea kanu lāʻau (CF8 / CF8m / CF3 / CF3M), Keihei, Ui, e duplex a me ke kiʻekiʻe-alyy, ʻO kēia hoʻolako i nā hale kūʻai kūʻai kūʻai i kūkuluʻia e hana i ka hoʻoponoponoʻana, ikaika nui, a iʻole nā ​​wahi kiʻekiʻe kiʻekiʻe.

Ināʻoe e koi i nā mea kanu maʻamau, pahu hopu palekana, nā hua waina honua, Nā Valoko, a iʻole ka hana kiʻekiʻe o nā hale kūʻai kūʻai kūʻai, ʻO kēia kāu hoa hilinaʻi no ka hemolele, durability, a me ka hōʻoia maikaʻi.

FaqS

He aha ke kumu e kamaʻilio ai ka valve palekana?

Kipi (ʻO ka weheʻana / paniʻana) ma muli o ka undersizing, hoʻopaʻa hope loa, a i ʻole ka hāʻule kaomi ʻana. Hiki iā ia ke hōʻino i ka valve a me ka ʻōnaehana, e koi ana i ka hoʻonui hou ʻana a i ʻole nā ​​hoʻonohonoho hoʻonohonoho.

Pehea ka hopena o ka backpressure i ka valve palekana?

ʻIke ʻia nā kiwi kaulike ʻole e hoʻonohonoho i ka neʻe kaomi (±1% no kēlā me kēia 10% hoʻopaʻa hope). Kiwikā kaulike (me ka bellow) kue i keia, mālama i ka pololei.

He aha ka ʻokoʻa ma waena o ka valve palekana a me ka disc rupture?

Hiki ke hoʻohana hou ʻia nā valve palekana, ʻoiai ʻo nā disc rupture he hoʻohana hoʻokahi manawa (pohā ma PS) a mālama i nā pilikia kiʻekiʻe. Hoʻohana pinepine ʻia lākou no ka redundancy i nā ʻōnaehana koʻikoʻi.