2.5 Pākuʻi kiwikā

ʻO ka valve plug kahi valve e hoʻohana ana i ke kino plug me kahi lua ma ke ʻano he ʻāpana wehe a pani, a hoʻohuli ke kino plug me ke kumu valve e hoʻokō i ka wehe a me ka pani ʻana. He ʻano maʻalahi ka valve plug, wehe wikiwiki a pani, hana maʻalahi, pale wai liʻiliʻi, liʻiliʻi nā ʻāpana a māmā. Loaʻa nā valve plug i nā ʻano pololei, ʻekolu ala a me ʻehā ala. Hoʻohana ʻia ka valve plug pololei e ʻoki i ka medium, a hoʻohana ʻia nā valve plug ʻekolu ala a me ʻehā ala e hoʻololi i ke kuhikuhi o ka medium a hoʻohuli paha i ka medium.

2.6kiwikā pulelehua

ʻO ka valve pepeke he papa pepeke e hoʻohuli ana i 90° a puni kahi axis paʻa i loko o ke kino valve e hoʻopau i ka hana wehe a pani. He liʻiliʻi ka nui o nā valve pepeke, māmā ke kaumaha a maʻalahi ke ʻano, nona nā ʻāpana liʻiliʻi wale nō.

A hiki ke wehe a pani koke ʻia ma ka hoʻohuli wale ʻana i 90°, he mea maʻalahi ke hana. Ke wehe piha ʻia ka valve butterfly, ʻo ka mānoanoa o ka papa butterfly wale nō ke kūʻē i ka wā e kahe ai ke kikowaena ma ke kino valve. No laila, he liʻiliʻi loa ka emi ʻana o ke kaomi i hana ʻia e ka valve, no laila he mau ʻano kaohi kahe maikaʻi kona. Ua māhele ʻia nā valve butterfly i ʻelua ʻano sila: sila palupalu elastic a me ka sila paʻakikī metala. ʻO ka valve sila elastic, hiki ke hoʻokomo ʻia ke apo sila i loko o ke kino valve a i ʻole e hoʻopili ʻia i ka periphery o ka papa butterfly. Loaʻa iā ia ka hana sila maikaʻi a hiki ke hoʻohana ʻia no ka throttling, nā pipelines vacuum medium a me nā media corrosive. ʻO nā valves me nā sila metala he lōʻihi ka lōʻihi o ka lawelawe ma mua o nā valves me nā sila elastic, akā he paʻakikī ke hoʻokō i ka sila piha. Hoʻohana pinepine ʻia lākou i nā kūlana kahi e loli nui ai ke kahe a me ka emi ʻana o ke kaomi a pono ka hana throttling maikaʻi. Hiki i nā sila metala ke hoʻololi i nā mahana hana kiʻekiʻe, ʻoiai ʻo nā sila elastic he hemahema o ka palena ʻia e ka mahana.

2.7Kiwikā nānā

ʻO ka valve nānā he valve hiki ke pale aku i ke kahe hope o ka wai. Wehe ka disk o ka valve nānā ma lalo o ka hana o ke kaomi wai, a kahe ke wai mai ka ʻaoʻao komo a i ka ʻaoʻao puka. Ke haʻahaʻa ke kaomi ma ka ʻaoʻao komo ma mua o ka ʻaoʻao puka, pani koke ka disc valve ma lalo o ka hana o ka ʻokoʻa kaomi wai, kona kaumaha ponoʻī a me nā mea ʻē aʻe e pale ai i ke kahe ʻana o ka wai. Wahi a ke ʻano hoʻonohonoho, hiki ke hoʻokaʻawale ʻia i ka valve nānā hāpai a me ka valve nānā wili. ʻOi aku ka maikaʻi o ke sila ʻana o ke ʻano hāpai a me ke kūpaʻa wai nui ma mua o ke ʻano wili. No ke komo ʻana omo o ka paipu omo pamu, pono e hoʻohana ʻia kahi valve lalo. ʻO kāna hana, ʻo ia ke hoʻopiha i ka paipu komo pamu me ka wai ma mua o ka hoʻomaka ʻana i ka pamu; ma hope o ka hoʻōki ʻana i ka pamu, e mālama i ka paipu komo a me ke kino pamu i piha i ka wai no ka hoʻomākaukau ʻana no ka hoʻomaka hou ʻana. Hoʻokomo wale ʻia ka valve lalo ma ka paipu kū pololei ma ke komo ʻana o ka pamu, a kahe ke kikowaena mai lalo a luna.

2.8Kiwikā diaphragm

ʻO ka ʻāpana wehe a me ka pani ʻana o ka valve diaphragm he diaphragm laholio, kahi i hoʻopaʻa ʻia ma waena o ke kino valve a me ka uhi valve.

Ua hoʻopaʻa ʻia ka ʻaoʻao waena o ka diaphragm ma ke kumu valve, a ua uhi ʻia ke kino valve me ka laholio. ʻOiai ʻaʻole komo ka mea waena i loko o ka lua o loko o ka uhi valve, ʻaʻole pono ka pahu hoʻopihapiha no ke kumu valve. He ʻano maʻalahi ka valve diaphragm, hana sila maikaʻi, mālama maʻalahi, a haʻahaʻa ke kūpaʻa wai. Ua māhele ʻia nā valve diaphragm i ke ʻano weir, ke ʻano pololei, ke ʻano ʻākau a me ke ʻano kahe pololei.

3. Nā kuhikuhi koho valve i hoʻohana pinepine ʻia

3.1 Nā kuhikuhi koho ʻana i ka valve puka

Ma lalo o nā kūlana maʻamau, pono e makemake ʻia nā kiwikā puka. Ma waho aʻe o ke kūpono no ka mahu, ka ʻaila a me nā mea hana ʻē aʻe, kūpono nō hoʻi nā kiwikā puka no nā mea hana e loaʻa ana nā mea paʻa granular a me ka viscosity kiʻekiʻe, a kūpono hoʻi no nā kiwikā i loko o nā ʻōnaehana hoʻokuʻu a me nā ʻōnaehana vacuum haʻahaʻa. No nā mea hana e loaʻa ana nā ʻāpana paʻa, pono e hoʻolako ʻia ke kino o ka kiwikā puka me hoʻokahi a ʻelua paha mau lua purge. No nā mea hana haʻahaʻa wela, pono e koho ʻia nā kiwikā puka kūikawā haʻahaʻa wela.

3.2 Nā kuhikuhi no ke koho ʻana i nā kiwikā hoʻōki

He kūpono ka valve hoʻōki no nā pipelines me nā koi palupalu ma ke kū'ē'ē wai, ʻo ia hoʻi, ʻaʻole i manaʻo nui ʻia ka pohō kaomi, a me nā pipelines a i ʻole nā ​​​​mea hana me ke kiʻekiʻe o ka mahana a me ke kaomi kiʻekiʻe. He kūpono ia no ka mahu a me nā pipelines waena ʻē aʻe me DN <200mm; hiki i nā valves liʻiliʻi ke hoʻohana i nā valves ʻoki. ʻO nā valves, e like me nā valves nila, nā valves mea hana, nā valves laʻana, nā valves anakahi kaomi, a pēlā aku; loaʻa i nā valves hoʻōki ka hoʻoponopono kahe a i ʻole ka hoʻoponopono kaomi, akā ʻaʻole koi ʻia ka pololei o ka hoʻoponopono ʻana, a he liʻiliʻi ke anawaena o ka pipeline, no laila pono e hoʻohana i kahi valve hoʻōki a i ʻole ka valve throttling Valve; No nā media ʻawaʻawa loa, pono e hoʻohana i kahi valve hoʻōki i hoʻopaʻa ʻia i ka bellows; akā naʻe, ʻaʻole pono e hoʻohana ʻia ka valve hoʻōki no nā media me ka viscosity kiʻekiʻe a me nā media i loaʻa nā ʻāpana i maʻalahi i ka sedimentation, ʻaʻole hoʻi e hoʻohana ʻia e like me ka valve vent a me kahi valve i kahi ʻōnaehana vacuum haʻahaʻa.

3.3 Nā kuhikuhi koho ʻana i ka valve pōpō

He kūpono nā kiwikā pōpō no nā mea hoʻoheheʻe haʻahaʻa, kaomi kiʻekiʻe, a me nā mea hoʻonaninani kiʻekiʻe. Hiki ke hoʻohana ʻia ka hapa nui o nā kiwikā pōpō i loko o nā mea hoʻoheheʻe me nā ʻāpana paʻa i hoʻokuʻu ʻia, a hiki ke hoʻohana ʻia hoʻi i nā mea hoʻoheheʻe pauka a me ka granular e like me nā koi o nā mea sila; ʻaʻole kūpono nā kiwikā pōpō piha-kahawai no ka hoʻoponopono ʻana i ke kahe, akā kūpono no nā manawa e pono ai ka wehe wikiwiki a me ka pani ʻana, kahi mea maʻalahi ke hoʻokō. ʻOki ulia pōpilikia i nā ulia; ʻōlelo pinepine ʻia i loko o nā paipu me ka hana sila paʻa, ka ʻaʻahu, nā kahawai shrinkage, ka neʻe wikiwiki ʻana a me ka pani ʻana, ka ʻoki kaomi kiʻekiʻe (ʻokoʻa kaomi nui), ka walaʻau haʻahaʻa, ka hanana gasification, ka torque hana liʻiliʻi, a me ke kūʻē wai liʻiliʻi. E hoʻohana i nā kiwikā pōpō; kūpono nā kiwikā pōpō no nā hale māmā, nā ʻoki haʻahaʻa haʻahaʻa, a me nā mea corrosive; ʻo nā kiwikā pōpō kekahi mau kiwikā kūpono loa no nā mea hoʻoheheʻe haʻahaʻa a me nā mea hoʻoheheʻe cryogenic. No nā ʻōnaehana paipu a me nā mea hana me nā mea hoʻoheheʻe haʻahaʻa, pono e hoʻohana ʻia nā kiwikā pōpō haʻahaʻa me nā uhi kiwikā; koho I ka wā e hoʻohana ai i kahi kiwikā pōpō lana, pono i kāna mea noho ke hāpai i ka ukana o ka pōpō a me ka mea hana. Pono nā kiwikā pōpō nui i ka ikaika nui i ka wā o ka hana. Pono nā kiwikā pōpō me DN ≥ 200mm e hoʻohana i ka hoʻoili ʻana o ke kia ilo; kūpono nā kiwikā pōpō paʻa no nā diameters nui a me nā kūlana kaomi kiʻekiʻe; eia kekahi, pono nā kiwikā pōpō i hoʻohana ʻia i nā paipu hana no nā mea ʻawahia loa a me nā mea lapalapa e loaʻa i nā ʻano hana pale ahi a me nā anti-static.

3.4 Nā kuhikuhi koho ʻana i ka valve Throttle

He kūpono ka valve throttle no nā manawa i haʻahaʻa ai ka mahana waena a kiʻekiʻe ke kaomi. He kūpono ia no nā ʻāpana e pono ai ke hoʻoponopono i ka nui o ke kahe a me ke kaomi. ʻAʻole kūpono ia no nā media me ka mānoanoa kiʻekiʻe a me nā ʻāpana paʻa, a ʻaʻole kūpono hoʻi no ka hoʻohana ʻana ma ke ʻano he valve hoʻokaʻawale.

3.5 Nā kuhikuhi koho valve plug

He kūpono ka valve plug no nā hanana e pono ai ka wehe wikiwiki a me ka pani ʻana. ʻAʻole kūpono ia no ka mahu a me ka medium me ka mahana kiʻekiʻe. Hoʻohana ʻia ia no ka medium me ka mahana haʻahaʻa a me ka viscosity kiʻekiʻe, a kūpono hoʻi no ka medium me nā ʻāpana i hoʻokuʻu ʻia.

3.6 Nā kuhikuhi koho ʻana i ka valve pepeke

He kūpono nā kiwikā pepeke no nā kūlana me nā anawaena nui (e like me DN﹥600mm) a me nā lōʻihi kūkulu pōkole, a me nā kūlana kahi e pono ai ka hoʻoponopono ʻana i ke kahe a me ka wehe wikiwiki a me ka pani ʻana. Hoʻohana nui ʻia lākou no ka wai, ka ʻaila a me nā huahana kaomi me nā mahana ≤80°C a me nā kaomi ≤1.0MPa. Ea a me nā mea ʻē aʻe; no ka mea, ʻoi aku ka nui o ka pohō kaomi o nā kiwikā pepeke i hoʻohālikelike ʻia me nā kiwikā puka a me nā kiwikā pōpō, kūpono nā kiwikā pepeke no nā ʻōnaehana paipu me nā koi pohō kaomi wehe.

3.7 Nā kuhikuhi koho valve nānā

ʻO ka maʻamau, kūpono nā kiwikā nānā no nā mea maʻemaʻe a ʻaʻole kūpono no nā mea i loaʻa nā ʻāpana paʻa a me ka mānoanoa kiʻekiʻe. Ke DN ≤ 40mm, pono e hoʻohana ʻia kahi kiwikā nānā hāpai (ʻae wale ʻia e hoʻokomo ʻia ma nā paipu ākea); ke DN = 50 ~ 400mm, pono e hoʻohana ʻia kahi kiwikā nānā hāpai swing (hiki ke hoʻokomo ʻia ma nā paipu ākea a me ke kū pololei, Inā hoʻokomo ʻia ma kahi paipu kū pololei, pono ke kuhikuhi kahe waena mai lalo a luna); ke DN ≥ 450mm, pono e hoʻohana ʻia kahi kiwikā nānā buffer; ke DN = 100 ~ 400mm, hiki ke hoʻohana ʻia kahi kiwikā nānā wafer; kahi kiwikā nānā swing Hiki ke hana ʻia ka kiwikā hoʻihoʻi i kahi kaomi hana kiʻekiʻe loa, hiki i ka PN ke hiki i ka 42MPa, a hiki ke hoʻopili ʻia i kekahi mea hana a me kekahi pae mahana hana ma muli o nā mea o ka pūpū a me nā sila. ʻO ka mea waena he wai, mahu, kinoea, mea ʻino, ʻaila, lāʻau lapaʻau, a pēlā aku. ʻO ka pae mahana hana o ka mea waena ma waena o -196 ~ 800 ℃.

3.8 Nā kuhikuhi koho ʻana i ka valve diaphragm

He kūpono ka valve diaphragm no ka ʻaila, ka wai, nā media acidic a me nā media i loaʻa nā mea paʻa i hoʻokuʻu ʻia me ka mahana hana ma lalo o 200°C a me ke kaomi ma lalo o 1.0MPa. ʻAʻole kūpono ia no nā mea hoʻoheheʻe organik a me nā media oxidant ikaika. Pono e koho ʻia nā valve diaphragm ʻano Weir no nā media granular abrasive. I ke koho ʻana i kahi valve diaphragm ʻano weir, e nānā i kāna papa ʻano kahe; pono nā wai viscous, nā slurries sima a me nā media precipitating e hoʻohana i nā valve diaphragm pololei; koe wale nō nā koi kikoʻī, ʻaʻole pono e hoʻohana ʻia nā valve diaphragm i nā pipeline vacuum a me nā lako vacuum.