ʻIke kumu o nā motika pahū
1. Ke ʻano hoʻohālike o ka mīkini pahū
Manaʻo:ʻO ka mea i kapa ʻia ʻo explosion-proof motor e pili ana i ke kaʻa e hana ana i kekahi mau hana pahū e hōʻoia i hiki ke hoʻohana palekana ʻia i nā wahi pahū.
Hiki ke hoʻokaʻawale ʻia nā motika Explosion-proof i ʻekolu mau ʻano a i ʻole kā lākou ʻano composite e like me kā lākou kumu kumu o ka hālāwai ʻana i nā koi pahū:
1. ʻAno ʻaʻa ahi, ʻano B
He kaʻa kaʻa ʻaʻole e pahū i kahi hui pahū waho i ka wā e pahū ai i loko o ka motika.Loaʻa ka ikaika mechanical i ka pahu kaʻa (ka hao kiʻekiʻe, ka pā kila e like me ka pahu), i hiki iā ia ke pale i ka pahū a me ka hopena o waho me ka ʻole o ka pōʻino; Nā ʻāpana hoʻolālā (ākea a me ka lōʻihi) o ka ʻili hui pale ahi; nā koi no nā pahu hui, nā mea hoʻokomo uea, a pēlā aku; e hoʻomalu i ka wela o ka ʻili o ka pūpū i hiki ʻole ke loaʻa i kahi wela weliweli.
2. Hoʻonui i ke ʻano palekana, ʻano A
ʻOi aku ka maikaʻi o ka hoʻopaʻa ʻana o ka kaʻa, a ua ʻae ʻia nā koi pae palekana o IP55; pono e noʻonoʻo ka hoʻolālā electromagnetic e hoʻemi i ka piʻi ʻana o ka mahana; ka manawa e hiki ai ka rotor i kahi mahana weliweli i ka wā e paʻa ai, a hoʻolako ʻia me kahi mea uila hoʻomalu ponoʻī; e hoʻomaikaʻi i ka huli ʻana i ka huli ʻana, ka honua-i-ground a me ka pae-i-phase hoʻāʻo o ka uila insulation wili; hoʻomaikaʻi i ka hilinaʻi o ka pilina conductor; e hoʻomalu i ka palena palena iki o ka stator a me ka rotor.I ka pōkole, pale ia i nā huna ahi, nā arcs a i ʻole nā weliweli weliweli mai nā hiʻohiʻona a me ka uila, e hoʻomaikaʻi ai i ka palekana o ka hana.
3. ʻAno kaomi maikaʻi, ʻano P
He kaʻa pahū e hoʻokomo i ka ea hou i loko o ka hale a i ʻole e hoʻopiha iā ia me ke kinoea inert (e like me ka nitrogen) e pale ai i nā hui pahū o waho mai ke komo ʻana i ke kaʻa.
Ka laulā o ka hoʻohana:ʻO nā ʻano ʻano pahū a me nā ʻano puʻupuʻu maikaʻi e kūpono i nā wahi pōʻino a pau, a me nā mīkini pale ahi ( Type B) hoʻohana nui ʻia ma Kina.ʻOi aku ka haʻahaʻa o ke kumukūʻai hana a me ke kumukūʻai o ka mīkini palekana palekana ma mua o nā ʻano flameproof, a kūpono wale ia no Zone2 wahi.
2. Ka hoʻokaʻawale ʻana o nā kaʻa i loko o nā ea kinoea pahū
1. E like me ka helu ʻana o nā kahua pahū
Ka hoʻokaʻawale ʻana o nā wahi pahū | ʻāpana0 | Apana1 | ʻĀpana2 |
ʻO ka pinepine a me ka lōʻihi o nā lewa kinoea pahū | Nā wahi e ʻike mau ʻia ai nā lewa hau pahū a lōʻihi paha | Nā wahi e hiki mai ai nā ea kinoea pahū ma ka hana maʻamau | I ka wā o ka hana maʻamau, ʻaʻole hiki ke loaʻa kahi wahi kinoea pahū, a i ʻole kahi i ʻike ʻia i kekahi manawa a noho wale no ka manawa pōkole. |
2. E like me ke ʻano o ke kinoea pahū
lewa pahū Hoʻokaʻawale i nā mea uila | Papa I Na Lako Uila no ka Mine Lanahu | Papa II Nā lako uila no nā lewa kinoea pahū ma waho aʻe o nā mine lanahu | ||
II A | II B | II C | ||
Kaiaea kinoea pili | methane | ʻOi aku ma mua o 100 mau ʻano toluene, methanol, ethanol, diesel, etc. | Kokoke 30ʻano oethylene, kinoea, etc. | Hydrogen, acetylene, carbon disulfide, etc. |
3. Hoʻokaʻawale ʻia e like me ka mahana maoli o ke kinoea pahū
pūʻulu mahana | Ka wela o ka ili kiʻekiʻe °C | ʻano media |
T1 | 450 | Toluene, Xylene |
T2 | 300 | Ethylbenzene, etc. |
T3 | 200 | Diesel, etc. |
T4 | 135 | ʻO ka dimethyl etheretc. |
T5 | 100 | carbon disulfide etc. |
T6 | 85 | Ethyl nitrite, etc. |
3. Nā hōʻailona pahū o nā kaʻa pahū
1. Nā laʻana o nā hōʻailona pahū ʻana no nā motika asynchronous ʻekolu ʻāpana pale ahi.
ʻO ke kaʻa exDI flameproof no ka mine lanahu
ExD IIBT4 hale hana IIBod T4 pūʻulu e like me: wahi tetrafluoroethylene
2. Nā laʻana o nā hōʻailona pahū no ka hoʻonui ʻana i ka palekana ʻekolu-phase asynchronous motors:
Hoʻohana ʻia ka ExE IIT3 i nā wahi kahi o ka wela wela o ka pūʻulu T3 gas flammable i loko o ka hale hana.
4. ʻEkolu mau koi hōʻoia no nā motika pahū
Ke haʻalele ka mīkini pahū-hōʻoia i ka hale hana, pono e hoʻokō ka hana i nā koi o nā kūlana ʻenehana a me nā kūlana, a pono hoʻi e loaʻa i nā palapala hōʻoia ʻekolu i hoʻopuka ʻia e nā keʻena pili o ka mokuʻāina. Pono ka papa inoa kaʻa e hōʻike i nā helu palapala ʻekolu, ʻo ia hoʻi:
1. Palapala hōʻoia pahū
2. Helu laikini hana kaʻa kaʻa pahū
3. Ka helu MA ka palapala palekana.
Pono e loaʻa kahi hōʻailona EX ʻulaʻula ma ke kihi ʻākau o luna o ka papa inoa kaʻa a ma ka uhi o ka pahu puka.
Ka manawa hoʻouna: Mar-07-2023