ʻIke kumu o nā motika pahū

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.

 

信图片_202303071731561

 

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.

 

信图片_20230307173156


Ka manawa hoʻouna: Mar-07-2023