Shenhai Kuputika-Uchapupu
Define
Chiyero chekudzivirira chekuputika, tembiricha class, kuputika rudzi rwekudzivirira, uye nzvimbo inoshanda yekumaka zvinhu zvakakosha pakuongorora kuputika-yemagetsi emidziyo yemagetsi. Ruzivo urwu runoshandiswa kutsanangura mwero wekudzivirira kubva pakuputika, tembiricha yemhando iyo michina inogona kushanda zvakachengeteka, rudzi rwekudzivirirwa kwekuputika kunopiwa, uye nzvimbo dzakatarwa uko midziyo yakakodzera.
Kutora Ex demo IIC T6 GB semuenzaniso
EX
Ichi chiratidzo chinoratidza kuti midziyo yemagetsi inosangana nemhando imwe chete kana kupfuura inoputika mumhando dzekuputika;
Zvinoenderana nezvakatsanangurwa muChinyorwa 29 yeGB3836.1-2010 yakajairwa, chinhu chinodiwa midziyo yemagetsi isina kuputika kutakura zvakasiyana “Ex” kutara pachinzvimbo chakatanhamara pamuviri wayo wekunze. Uyezve, zita remuchina wemidziyo unofanirwa kuratidza inodiwa kuputika-chiratidzo chekumaka pamwe nenhamba yechitupa inosimbisa yayo.
kutevedzera.
Demb
Iyo yakaratidza kuputika yekudzivirira yemhando yemagetsi inoputika-isina kuputika inosarudza iyo chaiyo zvinoputika nzvimbo yengozi iyo yakagadzirirwa.
Kuputika Uchapupu Type
| Kuputika kwechiratidzo mhando | Kuputika kwemhando yekumaka | Notes |
|---|---|---|
| Flameproof mhando | d | |
| Kuwedzera kuchengeteka mhando | e | |
| Pressurized | p | |
| Intrinsically safe type | ia | |
| Intrinsically safe type | ib | |
| Oiri invasion type | o | |
| Mhando yekuzadza jecha | q | |
| Adhesive sealing type | m | |
| N-Type | n | Iwo mazinga ekudzivirira anoiswa seMA uye MB. |
| SpecialL mhando | s | Kurongeka kunosanganisira nA, nR, uye n-concave marudzi |
Cherechedza: Tafura inoratidza mhando dzekudzivirira kuputika kwemidziyo yemagetsi, inopa musanganiswa weakasiyana nzira dzekudzivirira kuputika kuti dzigadzire mhando dzekudzivirira kuputika kwehybrid.
Semuyenzaniso, zita racho “Ex demb” inomiririra mhando yekudzivirira kuputika kwehybrid yemidziyo yemagetsi, kubatanidza inodzivirira moto, kuwedzera kuchengeteka, uye encapsulation nzira.
Kurongeka kwenzvimbo munzvimbo dzine njodzi dzinoputika gasi:
Munzvimbo umo magasi anoputika uye zvinobvira moto mhute dzinosangana nemhepo kuita musanganiswa wegasi rinoputika, zvikamu zvitatu zvezone zvichienderana nehuwandu hwengozi zvinotangwa:
Zone 0 (inonzi Zone 0): Nzvimbo iyo gasi rinoputika rinosanganiswa nguva dzose, kazhinji, kana kuramba aripo mumamiriro ezvinhu akajairika.
Zone 1 (inonzi Zone 1): Nzvimbo iyo gasi rinoputika musanganiswa rinogona kuitika mumamiriro ezvinhu akajairika.
Zone 2 (inonzi Zone 2): Nzvimbo iyo gasi rinoputika musanganiswa risingatarisirwe kuti riitike mumamiriro akajairika, asi inogona kungoonekwa muchidimbu panguva yezviitiko zvisina kujairika.
Cherechedza: Mamiriro ezvinhu akajairika anoreva kutanga kwenguva dzose, vhara, kushanda, uye kuchengetedzwa kwemidziyo, nepo mamiriro asina kujairika ane chekuita nekusashanda zvakanaka kwemidziyo kana
zviito zvekusaziva.
Iko kuwirirana pakati penzvimbo dziri panjodzi yekuputika kwegasi uye dzinoenderana nemhando dzekudzivirira kuputika.
| Gasi boka | Maximum test kuchengetedza gap MESG (mm) | Minimum ignition current ratio MICR |
|---|---|---|
| IIA | MESG≥0.9 | MICR＞0.8 |
| IIB | 0.9＞MESG＞0.5 | 0.8≥MICR≥0.45 |
| IIC | 0.5≥MESG | 0.45＞MICR |
Cherechedza: Tichifunga nezve chaiwo mamiriro munyika yedu, kushandiswa kwe e-type (kuwedzera kuchengeteka) midziyo yemagetsi inongogumira kuZone 1, kubvumira:
Wiring mabhokisi uye junction mabhokisi asingaburitse sparks, arcs, kana tembiricha ine ngozi panguva yekushanda nguva dzose inoiswa senge d kana m mhando dzemuviri uye e type yechikamu chewaya..
Semuyenzaniso, iyo inoputika yekudzivirira dhizaini yeBPC8765 LED inoputika-chiratidzo chikuva mwenje ndeye Ex demb IIC T6 GB.. The light source compartment haipisi (d), chikamu chemutyairi chedunhu chakavharwa (mb), uye iyo wiring compartment features kuwedzera kuchengeteka (e) yekuvaka-isina kuputika. Sekureva kwambotaurwa, chiedza ichi chinogona kushandiswa muZone 1.
II
Chikamu chemidziyo yemudziyo wemagetsi-chisingapindi kuputika chinotarisa kukodzera kwayo kune chaiyo nzvimbo yegasi rinoputika.
Kuputika-proof midziyo inotsanangurwa semagetsi emagetsi izvo, pasi pemamiriro akatarwa, usabatidze nzvimbo yakapoteredza inoputika.
Saka, zvigadzirwa zvakanyorwa nezvambotaurwa pamusoro pekuputika-proof dhizaini (EX demb IIC) akakodzera chete kune ese anoputika gasi nharaunda, tisingabatanidzi migodhi yemarasha nenzvimbo dzepasi pevhu.
C
Iro gasi boka remagetsi emagetsi anoputika-rinotarisisa kuenderana kwayo neyakasanganiswa gasi rinoputika..
Tsanangudzo yeGas Group:
Munzvimbo dzese dzinoputika gasi, kunze kwemigodhi yemarasha nenzvimbo dzepasi pevhu (i.e., nharaunda dzakakodzera Kirasi II midziyo yemagetsi), magasi anoputika akaiswa mumapoka matatu, kureva A, B, uye C, zvichibva pahupamhi hwekuyedza kuchengetedza gap kana kushoma kupisa ikozvino reshiyo yemusanganiswa wegasi. Iyo gasi mapoka uye tembiricha yekudzima zvinoenderana nekuwanda kwe gasi rinobvira uye mhepo iri pasi petembiricha chaiyo yezvakatipoteredza uye mamiriro ekumanikidza.
Hukama pakati peanoputika gasi musanganiswa, magasi mapoka, uye hukuru hwekuyedza chengetedzo magapu kana hudiki hwekubatidza ikozvino reshiyo:
| Gasi boka | Maximum test kuchengetedza gap MESG (mm) | Minimum ignition current ratio MICR |
|---|---|---|
| IIA | MESG≥0.9 | MICR＞0.8 |
| IIB | 0.9＞MESG＞0.5 | 0.8≥MICR≥0.45 |
| IIC | 0.5≥MESG | 0.45＞MICR |
Cherechedza: Tafura yekuruboshwe inoratidza kuti hudiki hudiki hweanoputika gasi rekuchengetedza gasi kana hudiki huripo huripo hunoenderana nehuwandu hwepamusoro hwengozi ine chekuita nemagasi anoputika.. Saka, pane kuwedzera kudiwa kwekuomesera gasi mapoka ezvinodikanwa mumagetsi anoputika-asingapindi.
Mapoka egasi anowanzo sangana neakajairika magasi anoputika / zvinhu:
| Boka regesi/tembiricha boka | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, acrylic asidhi, benzene, styrene, carbon monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, chlorine | Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, peturu (kusanganisira peturu), mafuta emafuta, pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
| IIB | Propylene ester, dimethyl ether | Butadiene, epoxy propane, ethylene | Dimethyl ether, acrolein, hydrogen carbide | |||
| IIC | Hydrogen, gasi remvura | Acetylene | Carbon disulfide | Ethyl nitrate |
Muenzaniso: Muchiitiko apo zvinhu zvine ngozi zviripo munzvimbo inoputika gasi ihydrogen kana acetylene, boka regasi rakagoverwa kunharaunda iyi rakaiswa muboka reboka C. Naizvozvo, midziyo yemagetsi inoshandiswa mukati megadziriro iyi inofanirwa kutevedzera zvirevo zveboka regesi risingasviki IIC level..
Muchiitiko icho chinhu chiripo munzvimbo inoputika gasi is formaldehyde, boka regesi rakarongedzerwa nharaunda ino rinoiswa seboka A. Naizvozvo, midziyo yemagetsi inoshandiswa mukati megadziriro iyi inofanirwa kutevedzera zvirevo zveboka regasi rinenge IIA level. Zvisinei, midziyo yemagetsi ine gasi boka mazinga eIIB kana IIC anogona zvakare kushandiswa munzvimbo ino.
T6
The tembiricha boka rinopihwa kune chinoputika-chisina kuputika chigadziriso chemagetsi chinotarisa nharaunda yegasi iyo inopindirana nayo maererano nekupisa kwekupisa..
Boka rekushisa rinotsanangurwa sezvinotevera:
Tembiricha inogumira, kunonzi kupisa kwemoto, iripo kune inoputika gasi musanganiswa, kutsanangura tembiricha yavanogona kuva akabatidzwa. Naizvozvo, zvinodikanwa chaizvo zvinotonga tembiricha yepamusoro yemidziyo yemagetsi inoshandiswa mukati menzvimbo idzi, zvichida kuti tembiricha yepamusoro yemidziyo haipfuure tembiricha yekudzima. Naizvozvo, midziyo yemagetsi inoiswa mumapoka matanhatu, T1-T6, zvichibva patembiricha yavo yepamusorosoro.
| Ignition tembiricha yezvinhu zvinopisa | Iyo yakanyanya kupisa yepamusoro T yemidziyo (℃) | Tembiricha boka |
|---|---|---|
| t＞450 | 450 | T1 |
| 450≥t＞300 | 300 | T2 |
| 300≥t＞200 | 200 | T3 |
| 200≥t＞135 | 135 | T4 |
| 135≥t＞100 | 100 | T5 |
| 100≥t＞85 | 85 | T6 |
Zvichienderana neruzivo rwunopihwa patafura yekuruboshwe, hukama hwakajeka hunogona kucherechedzwa pakati pekupisa kwekushisa kwezvinhu zvinopisa uye zvinoenderana neboka rekushisa rinodiwa kune zvinoputika-zvisina simba magetsi emagetsi.. Zvakananga, sezvo kupisa kwemoto kunoderera, zvinodiwa paboka rekushisa kwezvigadzirwa zvemagetsi zvinowedzera.
Kurongeka kwetembiricha kunoenderana neanowanzo sangana anoputika magasi/zvinhu:
| Boka regesi/tembiricha boka | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, acrylic asidhi, benzene, styrene, carbon monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, chlorine | Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, peturu (kusanganisira peturu), mafuta emafuta, pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
| IIB | Propylene ester, dimethyl ether | Butadiene, epoxy propane, ethylene | Dimethyl ether, acrolein, hydrogen carbide | |||
| IIC | Hydrogen, gasi remvura | Acetylene | Carbon disulfide | Ethyl nitrate |
Cherechedza: Ruzivo rwunopihwa patafura iri pamusoro nderwechinangwa chete. Ndokumbirawo utarise zvinodikanwa zvinotsanangurwa muGB3836 kuti zvishandiswe nemazvo.
Muenzaniso: Kana kabhoni disulfide iri chinhu chine njodzi munzvimbo inoputika gasi, inofanana neboka rekushisa T5. Naizvozvo, boka rekushisa remidziyo yemagetsi inoshandiswa munzvimbo ino inofanira kuva T5 kana kupfuura. Saizvozvowo, kana formaldehyde chiri chinhu chine njodzi munzvimbo inoputika gasi, inofanana neboka rekushisa T2. Naizvozvo, boka rekushisa remidziyo yemagetsi inoshandiswa munharaunda iyi inofanira kuva T2 kana kupfuura. Zvakakosha kutaura kuti midziyo yemagetsi ine mapoka ekushisa eT3 kana T4 inogonawo kushandiswa munzvimbo ino.
GB
Iyo nhanho yekudzivirira yemidziyo inomiririra mwero wekudzivirira kune inoputika-yemagetsi emagetsi, zvichireva kuchengetedzwa kwechiyero chemidziyo.
Tsananguro dzechidziviriro chemidziyo yenzvimbo dzinoputika gasi dzinopihwa muchikamu 3.18.3, 3.18.4, uye 3.18.5 yeGB3836.1-2010.
3.18.3
Ga Level EPL Ga
Zvishandiso zvakagadzirirwa nzvimbo dzinoputika gasi maficha a “high” mwero wekudzivirira, kuve nechokwadi kuti haishande senzvimbo yekudzima panguva yekushanda nguva dzose, zvinotarisirwa kukanganisa, kana kusashanda zvakanaka.
3.18.4
Gb Level EPL Gb
Midziyo inoitirwa gasi rinoputika nharaunda ine a “high” mwero wekudzivirira, kuvimbisa kuti haishande senzvimbo yekudzima panguva yenguva dzose yekushanda kana mamiriro anotarisirwa kukanganisa.
3.18.5
Gc Level EPL Gc
Midziyo yakagadzirirwa kushandiswa munzvimbo dzinoputika gasi inoratidza a “general” nhanho yekudzivirira uye haiite senge sosi yekudzima panguva yekushanda nguva dzose. Matanho ekudzivirira ekuwedzera anogona zvakare kuitwa kuti ave nechokwadi chekuti haabatike zvakanaka mumamiriro ezvinhu anotarisirwa kuitika nguva zhinji., senge panyaya yekusashanda zvakanaka kwemwenje.