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| Ka'idar auna electromagnetic flowmeter ta dogara ne akan dokar Faraday ta electromagnetic induction. Ma'aunin bututu na Flow Meter ne wani short bututu da ba na magnetic alloy da aka saka a cikin kayan rufi. Biyu lantarkin lantarki a kan ma'auni bututun ta hanyar bututun diameter bango. Its electrode kai ne daidai da ciki surface na liner. Lokacin da magnetic coil stimulated da biyu-directional wave pulse, zai samar da aiki magnetic filin da magnetic kwarara yawa B a tsaye shugabanci da ma'auni bututun axis. A wannan lokacin, idan ruwa da wani lantarki conductivity kwarara ta hanyar ma'auni bututun, yankan magnetic line za a gano fitar da lantarki karfin E. lantarki karfin E daidai da magnetic kwarara yawa B, ma'auni bututun ciki diamita d da kuma matsakaicin kwarara gudun V, da lantarki karfin E (kwarara siginar) gano da lantarki da kuma aika ta hanyar kebul zuwa mai juyawa. Bayan an kara aiki da siginar kwarara, mai juyawa zai iya nuna kwararar ruwa, kuma zai iya fitar da bugun jini, tattauna siginar halin yanzu da sauransu don sarrafawa da daidaitawa na kwarara. |
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E=KBdV
Tsarin:
E --- don siginar ƙarfin lantarki tsakanin lantarki (V)
B --- Magnetic Pass yawa (T)
d --- auna ciki diamita na bututun (m)
V --- Matsakaicin gudun gudun (m / s)
A cikin formula K, d ne daidaitacce, saboda magnetic stimulation halin yanzu ne daidaitacce halin yanzu, don haka B ma ne daidaitacce, to, da E = KBdV sananne, girman kwararar Q da siginar ƙarfin lantarki E daidai da daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daidaitacce daitacce daitacce daitacce Saboda haka, duk lokacin da aka auna E, za a iya ƙayyade kwararar Q. Wannan ya isa da mahimmancin aikin ma'aunin kwararar lantarki.
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| E = KBdV da aka sani, zafin jiki, matsin lamba, wutar lantarki, da kuma dangantakar ruwa mai ƙarfi na ruwa mai ƙarfi na ruwa mai ƙarfi na ruwa mai ƙarfi na ruwa mai ƙarfi na ruwa mai ƙarfi ba zai shafi sakamakon ma'auni ba. Game da yanayin kwarara muddin ya dace da kwararar symmetric na axis (kamar layered ko turbulence) ba zai shafi sakamakon ma'auni ba. Saboda haka electromagnetic kwarara mita ne wani ainihin girman kwarara mita. Ga masana'antun masana'antu da masu amfani, muddin an daidaita shi da ruwa na yau da kullun, za a iya auna yawan kwararar kowane matsakaicin kafofin watsa labarai ba tare da yin wani gyare-gyare ba, wannan shine babban fa'ida na ma'aunin kwararar lantarki na lantarki wanda babu wani ma'aunin kwararar lantarki. Babu aiki da abubuwan da ke hana ruwa a cikin bututun ma'auni, don haka kusan babu asarar matsin lamba kuma yana da babban aminci. |
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1. Tsarin kayan aiki mai sauki, abin dogaro, babu sassa masu motsawa, tsawon rayuwar aiki 2. Babu cutoff ruwa resistant sassa, babu matsin lamba asara da kuma ruwa blockage bayyanar. 3. Babu inertia na inji, sauri amsawa, kyakkyawan kwanciyar hankali, za a iya amfani da shi ga atomatik ganowa, daidaitawa tsarin sarrafawa. 4. Ma'aunin daidaito ba ya tasiri da nau'in kafofin watsa labarai da zafin jiki, viscosity, matsin lamba da sauran sigogin jiki. 5. Amfani da daban-daban hadewa na PTFE ko roba kayan liner da HC, HB, 316L, Ti da sauran lantarki kayan iya dacewa da bukatun daban-daban kafofin watsa labarai. 6. Cikakken adadin dijital, ƙarfin tsangwama mai ƙarfi, ingantaccen ma'auni, babban daidaito, ƙididdigar ma'auni na iya zuwa 150: l. 7. Full Chinese menu aiki, sauki don amfani, aiki mai sauki. 8. High definition baya haske LCD nuni. 9. Tare da biyu-directional kwarara ma'auni, biyu-directional total tarawa aiki, ciki yana da uku accumulator iya nuna m tarawa darajar, reverse tarawa darajar da bambanci tarawa darajar. 10. fitarwa hanya: halin yanzu, mitar biyu-direction fitarwa aiki da RS-485, Modbus, HART dubawa. 11. Yin amfani da SMD na'urori da surface shigarwa (SMT) fasaha, kewaye amintacce high.
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1.Complete inji da kuma firikwensin fasaha data
| Aika ka'idoji |
JB / T9248 a l999 |
| Nominal diamita |
10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, l000、l200、1400、1600、 l800 |
| Matsakaicin gudun gudun |
15m/s |
| Daidaito |
0.5 mataki, 1.0 mataki (bambanta da diamita) |
| Ruwa conductivity |
≥5uS/cm |
| yanayin zafin jiki |
Mai auna firikwensin: (-40 ~ + 80) ℃, Mai juyawa: (-l5 ~ + 50) ℃ |
| Lining kayan |
Polytetrafluoroethylene, polyneoprene, polyammonia, polyfluoroethylene (F46) |
| zafin jiki na ruwa |
≤120℃ |
| kayan lantarki |
316L、 Hashtag C, Hashtag B, titanium, tantalum, platinum / iridium, bakin karfe rufe tungsten carbide |
| Flange kayan |
Carbon karfe, bakin karfe |
| Karewar Gidaje |
IP65 |
| Alamar fashewa |
ExⅡBT6 Gb |
2. fasaha data na mai juyawa
| wutar lantarki |
DC |
(18~30)V |
| Sadarwa |
(85~265)V (45~63)Hz |
| ikon |
<20W (aiki tare da firikwensin) |
| ciki accumulator |
Gabaɗaya ƙididdigar ƙididdigar, reverse ƙididdigar, da bambancin darajar duk suna da jimlar accumulator |
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fitarwa siginar
(Shirye-shirye)
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Yanzu fitarwa |
● fitarwa siginar: biyu hanyoyi biyu, cikakken keɓewa (0 ~ l0) mA / (4 ~ 20) mA ● load juriya: (0 ~ l0) mA, (0 ~ 1.5) KΩ; (4 ~ 20) mA lokacin, (0 ~ 750) Ω ● tushen kuskure: ƙara ± l0μA bisa ga tushen kuskure na ma'auni a sama |
| mitar fitarwa |
● gaba da kuma baya kwarara fitarwa, fitarwa mita iyaka za a iya saita a cikin 1 ~ 5000Hz ● Transistor sa lantarki na lantarki bude kewayawa biyu fitarwa ● waje wutar lantarki ba mafi girma fiye da 35V, sa lantarki na lantarki mafi girma halin yanzu ne 250mA lokacin gabatarwa |
| Pulse fitarwa |
● gaba da kuma baya kwarara fitarwa, fitarwa mita iyaka iya zuwa 500cp / s ● pulse fadi ta atomatik saiti ko 20ms murabba'in wave ● transistor sa lantarki tare da photoelectric keɓewa bude kewayon biyu-direction fitarwa ● waje wutar lantarki ba mafi girma fiye da 35V. sa lantarki mafi girma halin yanzu ne 250mA lokacin jagoranci |
| Flow nuna fitarwa |
● Abubuwan da za a iya auna kwararar ruwa mai kyau da kuma adadin shugabanci, kuma za a iya yanke hukunci game da shugabancin kwararar ruwa |
| Alarm fitarwa |
● Biyu hanyoyi tare da photoelectric keɓewa transistor sa lantarki buɗe kewayon ƙararrawa fitarwa ● waje ikon samar da ba mafi girma fiye da 35V, lokacin da aka gabatar da sa lantarki mafi girma yanzu ne 250mA ● ƙararrawa yanayin: ruwa iska bututu, magnetic karya, kwarara iyaka |
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sadarwa dubawa
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RS-485、 MODBUS、 HART, Tare da kariya daga walƙiya |
| Damping Lokaci |
da(1~64)s |
| al'ada aiki yanayi |
yanayin zafin jiki: (-10 ~ 60) ℃, dangi zafi: 5% ~ 90% |
3.Flow auna kewayon:
| Diamita (mm) |
Ma'auni kewayon (m3 / h) |
Diamita (mm) |
Ma'auni kewayon (m3 / h) |
Diamita (mm) |
Ma'auni kewayon (m3 / h) |
| DN10 |
0.14 ~ 1.4 |
DN125 |
22.08 ~ 441.56 |
DN700 |
692.37 ~ 13847.40 |
| DN15 |
0.32 ~ 6.36 |
DN150 |
31.79 ~ 635.85 |
DN800 |
904.32 ~ 18086.40 |
| DN20 |
0.57 ~ 11.30 |
DN200 |
56.52 ~ 1130.4 |
DN900 |
1144.53 ~ 22890.60 |
| DN25 |
0.88 ~ 17.66 |
DN250 |
88.31 ~ 1766.25 |
DN1000 |
1413.00 ~ 28260.00 |
| DN32 |
1.45 ~ 28.94 |
DN300 |
127.17 ~ 2543.40 |
DN1200 |
2034.72 ~ 40694.40 |
| DN40 |
2.26 ~ 45.22 |
DN350 |
173.09 ~ 3461.85 |
DN1400 |
2769.48 ~ 55389.60 |
| DN50 |
3.53 ~ 70.65 |
DN400 |
226.08 ~ 4521.60 |
DN1600 |
3617.28 ~ 72345.60 |
| DN65 |
5.97 ~ 119.40 |
DN450 |
286.31 ~ 5722.65 |
DN1800 |
4578.12 ~ 91562.40 |
| DN80 |
9.04 ~ 180.86 |
DN500 |
353.25 ~ 7065.00 |
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| DN100 |
14.13 ~ 282.6 |
DN600 |
508.68 ~ 10173.6 |
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| Electromagnetic Flowmeter siffar da kuma shigarwa size (Flange misali: GB / T9119) |
| Diamita ta hanyar DN |
Matsin lamba Level |
Diamita na waje na flange D |
Bolt rami tsakiyar zagaye diamita K |
Bolt rami n-L |
Total tsawon L |
tsayi H |
| 10 |
PN40 |
90 |
60 |
4-φ14 |
200 |
190 |
| 15 |
PN40 |
95 |
65 |
4-φ14 |
200 |
190 |
| 20 |
PN40 |
105 |
75 |
4-φ14 |
200 |
190 |
| 25 |
PN40 |
110 |
85 |
4-φ14 |
200 |
200 |
| 32 |
PN40 |
140 |
100 |
4-φ18 |
200 |
205 |
| 40 |
PN40 |
150 |
110 |
4-φ18 |
200 |
215 |
| 50 |
PN40 |
165 |
125 |
4-φ18 |
200 |
220 |
| 65 |
PN16 |
185 |
145 |
4-φ18 |
200 |
240 |
| 80 |
PN16 |
200 |
160 |
4-φ18 |
200 |
255 |
| 100 |
PN16 |
220 |
180 |
4-φ18 |
250 |
270 |
| 125 |
PN16 |
250 |
210 |
4-φ18 |
250 |
300 |
| 150 |
PN16 |
285 |
240 |
8-φ22 |
300 |
330 |
| 200 |
PN16 |
340 |
295 |
12-φ24 |
350 |
390 |
| 250 |
PN16 |
405 |
355 |
12-φ26 |
450 |
450 |
| 300 |
PN16 |
460 |
410 |
12-φ28 |
500 |
500 |
| 350 |
PN16 |
520 |
470 |
16-φ30 |
550 |
520 |
| 400 |
PN16 |
580 |
525 |
16-φ32 |
600 |
635 |
| 450 |
PN10 |
615 |
565 |
20-φ26 |
600 |
685 |
| 500 |
PN10 |
670 |
620 |
20-φ26 |
600 |
750 |
| 600 |
PN10 |
780 |
725 |
20-φ30 |
600 |
830 |
| 700 |
PN6 |
860 |
810 |
24-φ26 |
700 |
890 |
| 800 |
PN6 |
975 |
920 |
24-φ30 |
800 |
1095 |
| 900 |
PN6 |
1075 |
1020 |
24-φ30 |
900 |
1195 |
| 1000 |
PN6 |
1175 |
1120 |
28-φ30 |
1000 |
1295 |
| 1200 |
PN6 |
1405 |
1340 |
32-φ33 |
1200 |
1395 |
| 1400 |
PN6 |
1630 |
1560 |
36-φ36 |
1400 |
1595 |
| 1600 |
PN6 |
1830 |
1760 |
40-φ36 |
1600 |
1700 |
| 1800 |
PN6 |
2045 |
1970 |
44-φ39 |
1800 |
1930 |
1. Duk bayanai a kan tebur ne kawai bisa ga misali irin firikwensin 2. Sauran ba a lissafa matsin lamba darajar da size iya bambanta 3. Ga ƙananan na'urorin firikwensin, girman farfajiyar mutum zai iya zama mafi girma fiye da na'urorin firikwensin
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Alamar kowane terminal na tebur mai zagaye kamar yadda ke ƙasa:
| I+: |
Flow yanzu fitarwa |
| COM: |
Yanzu Output |
| P+: |
Bidirectional kwarara mita (pulse) fitarwa |
| COM: |
mita (pulse) fitarwa |
| AL: |
Ƙasa iyaka ƙararrawa fitarwa |
| AH: |
Top ƙararrawa fitarwa |
| COM: |
Alarm fitarwa |
| FUSE: |
Shigar da wutar lantarki fuse |
| T+: |
Sadarwa Shigarwa |
| T-: |
Sadarwa Shigarwa |
| G: |
RS232 sadarwa |
| L1: |
220V (24V) samar da wutar lantarki |
| L2: |
220V (24V) samar da wutar lantarki |
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1, da waje muhalli bukatun: a. Flow mita ya kamata kauce wa shigar a cikin yanayin da zafin jiki canji sosai ko karkashin high zafin jiki radiation na kayan aiki, idan dole ne a shigar da wani thermal insulation, iska matakan. b. mafi kyau a shigar da ma'aunin kwararar ruwa a cikin gida, idan dole ne a shigar da shi a waje, ya kamata a kauce wa ruwan sama, ruwan ruwa da ruwa da kuma fuskantar rana, yana buƙatar matakan rigakafi da kariya. c. Flow mita ya kamata kauce wa shigarwa a cikin yanayin da ke dauke da lalata gas, dole ne a shigar da shi, yana buƙatar matakan iska. D. Don sauƙin shigarwa, kulawa da kulawa, ana buƙatar isasshen wurin shigarwa a kusa da ma'aunin kwarara. e. Flow ma'auni shigarwa wuri ya kamata kauce wa karfi magnetic filin da karfi rawar jiki tushen, kamar bututun rawar jiki babban, a biyu gefen Flow ma'auni ya kamata a da m bututun tushen.
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2, bukatun sashin tubu mai tsayi: Don inganta tasirin kwararar kwarara da karkatarwar filin kwarara, akwai wasu buƙatun tsawon sashin tubu mai tsayi na gaba da baya da aka shigar, in ba haka ba zai shafi daidaiton ma'auni (kuma za a iya shigar da rectifier, don kauce wa shigarwa kusa da bawul na daidaitawa da bawul na rabin buɗewa).
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| Pipe shigarwa iri |
Shigar da zane |
Standard bututun iri |
| gaba kai tsaye bututun L |
Bayan kai tsaye bututun S |
| karkata bututu |
Hoto a |
10D |
5D |
| Horizontal bututun |
Hoton b |
5D |
3D |
| bawul ƙasa |
Hoton c |
10D |
5D |
| Expanded bututun |
Hoton d |
10D |
5D |
| Pump ƙasa |
Hoto |
15D |
2D |
| shrinkage bututun |
Hoton f |
5D |
2D |
| Haɗuwa |
Hoto g |
30D |
3D |
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3, bukatun tsari bututu: Flow mita ga sama, ƙasa tsari bututu na shigarwa wuri yana da wasu bukatun, in ba haka ba ya shafi ma'auni daidaito. a 、 A saman, ƙasa tsari bututun ciki diamita ne daidai da ciki diamita na firikwensin, kuma ya kamata ya sadu: 0.98DN≤D≤1.05DN (tsari DN: firikwensin ciki diamita, D: tsari bututun ciki diamita) b, tsari bututun da firikwensin dole ne concentric, coaxial karkatarwa ya kamata ba ya fi 0.05DN
4, kusa da wucewa bukatun: Don sauƙaƙe gyaran kwarara ma'auni, ya fi kyau don kwarara shigarwa kusa da wucewa, Bugu da ƙari, da nauyi gurɓataccen ruwa da kwarara ma'auni bukatar tsabtace da ruwa ba zai iya dakatar, dole ne a shigar kusa da wucewa.
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5, Flow mita a kan bututun shigarwa bukatun:
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6, ƙasa na firikwensin: Don yin aiki mai aminci na ma'auni, inganta daidaito na ma'auni, ba tare da tsangwama da ƙarfin kwayoyin cuta na waje ba, firikwensin ya kamata ya sami kyakkyawan daban-daban ƙasa, ƙasa juriya <10Ω. A cikin bututun da aka haɗa na'urar firikwensin idan an rufe shi da rufin rufi ko bututun da ba na ƙarfe ba, a gefen na'urar firikwensin ya kamata a haɗa zoben ƙasa ko an gina lantarkin ƙasa. a、 A karfe bututun da aka shimfiɗa a wuri iri: karfe bututun da aka kauce wa wani rufi layer, danna ƙasa a ƙasa.
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b、 A kan roba bututun ko akwai rufi layers, fenti bututun: biyu karshen fuska a kan na'urar firikwensin ya kamata a kara da ƙasa zoben ko gina ƙasa lantarki, don haka da cewa a cikin bututun gudana da aka gwada kafofin watsa labarai da ƙasa gajeren haɗi, tare da sifili damar. In ba haka ba, electromagnetic flowmeter ba zai iya aiki yadda ya kamata ba.
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