Nā huahana i hōʻike ʻia
- Meter Turbine maʻamau
- ⅛-8 "(4-200 mm)
- -4-300 ° F (-20 ~ + 150 ℃)
- 0.5%
- a hiki i ka 20 cP
- a i 3000 psi (25Mpa)
- SS # 304 a i ʻole # 316 (kino) 2Cr13 a i ʻole CD4MCu (rotors) Tungsten Carbide (nā bearings)
- 4-20mA, pulse, Modbus, HART
- Flanges (ANSI, DN, JIS) FNPT, MNPT, papapaoa
- Nā wai maʻemaʻe
- Nā wai liʻiliʻi viscosity, DI-wai, nā aila wahie
- Meter Turbine Maʻemaʻe
- ⅛ "- 8" (4-200 mm)
- -4-300 ° F (-20 ~ + 150 ℃)
- 0.5%
- 1 a 10 cSt
- a i 150 psi (10 bar)
- SS # 316L (kino) 2Cr13 a i ʻole CD4MCu (rotors) Tungsten Carbide (nā bearings)
- 4-20ma, pulse, modbus, hart
- Flanges hoʻomaʻemaʻe
- Nā wai maʻemaʻe
- Nā mea ʻai a me nā mea inu
- Meter Turbine Kaho Haahaa
- ¹¹₁₆ ”- ⅛" (1-4 mm)
- 14-200 ° F (-10 ~ + 100 ℃)
- 2%
- 1 a 10 cSt
- 290 psi (20 pā)
- Keleawe (pūpū), INO * 18-8 (1.4305) (halihali), SS # 304 a i ʻole polyvinylidene fluoride (mīkini peʻe)
- 4-20mA, pulupulu
- 0-5 vdc
- Nā wai maʻemaʻe
- Nā mīkini OEM / Dispenser
ʻIkepili Meter Turbine
Ua hoʻokomo ʻia nā mita turbine no ke ana ʻana i ka wai e Reinard Woltman, he mea hana mea hana Kelemania i ke kenekulia 18. I kēia mau lā, ua kapa ʻia nā mika wai ʻāina he Woltman mika me kahi kahua hoʻonohonoho honua e helu ana paha i nā miliona mau mika. Hiki ke hoʻohana ʻia nā mīkini turbine i nā noi wai a me nā kinoea i hoʻopaʻa ʻia. Aia i loko o ka mīkini turbine kekahi mau mea e pili ana i ke kino kahe, ka mea huila turbine, ke kākoʻo rotor/axle, ka (mau) a me ka module pickoff e helu i ka huli ʻana o ka turbine. ʻO ka mea nui e hāʻawi ana i ka heluhelu kahe kahe ʻana, ʻo ia ka mea turbine rotating e loaʻa i kahi rotor multi-bladed i kau ʻia ma nā kihi ʻākau i ke kahe i loko o kahi paipu me nā bearings free-spinning. ʻOi aku ka liʻiliʻi o nā rotors ma mua o ke kahe kahe ʻana a ʻo ko lākou wikiwiki o ka hoʻololi ʻana e pili pono i ka volumetric kahe o ka wai. Hiki ke ʻike ʻia ka hoʻololi ʻana o nā lau e nā mea paʻa o ka mokuʻāina (reluctance, inductance, capacitive and Hall-effect pickoffs) a i ʻole e nā mea ʻike mechanical (gear a magnetic drives).
Nā pickoff hōʻeuʻeu
Loaʻa i kahi module pickoff ʻano hoʻohaʻahaʻa i kahi magnet mau, kahi ʻāpana pole ferrous a me kahi wili uwea. I kēlā me kēia manawa e hele ai ka pahi turbine ma ke kahua i hana ʻia e ka magnet, hoʻopuka ka coil i kahi pulse. Hōʻike kēlā me kēia pulse i ka leo discrete o ka wai; ʻO ka helu o nā puʻupuʻu no kēlā me kēia ʻāpana i kapa ʻia ʻo K-factor o ka mika.
Hele mai nā koho koho inductance me kahi magnet mau i hoʻokomo ʻia i loko o ka rotor, i ka wā e hele ai kēlā me kēia lau i ka wili, hana ia i ka pulse voltage e hōʻike ana i hoʻokahi kipi piha o ka rotor. ʻO nā mea hoʻopuka o nā ʻano pickoff ʻelua he mau hawewe sine mau me ke alapine e like me ka nui o nā kahe kahe. No ka nāwaliwali loa o ka hōʻailona pulse ma nā kahe kahe haʻahaʻa, pono e pōkole ka mamao ma waena o ka pickoff a me nā mea uila hōʻike pili. E aʻo hou e pili ana i ka lima lima Nā Mīkini Kahe Ultrasonic ʻaneʻi.
Nā Sensors Capacitive
Hoʻokumu nā mea ʻikepili Capacitive i kahi nalu sine ma o ka hana ʻana i kahi hōʻailona RF i hoʻonui ʻia e ka neʻe o nā pahi wili.
Nā Transistors Hall-Effect
Hoʻololi nā transistors Hall-hopena i ko lākou mokuʻāina ke kū lākou i kahi alo o kahi ikaika haʻahaʻa (ma ke kauoha o 25 gauss) māpuna uila. Hoʻokomo ʻia nā mākēneki liʻiliʻi loa i nā kihi o nā lau rotor. I kēia ʻano ʻōnaehana, hana maʻamau ʻia nā rotors i kahi mea non-magnet, e like me polypropylene, Ryton, a i ʻole PVDF (Kynar). ʻO kā lākou hōʻailona hōʻailona kahi kaʻaahi pulse square square, ma ke kaulike pinepine i ka helu kahe volumetric.
Me ka loaʻa ʻole o ka drag magnet, hiki i ka Hall Effect ke hana ma nā kahe o ke kahe o lalo (0.2 ft / sec) ma mua o nā hoʻolālā pickoff magnet (0.5-1.0 ft / sec). Hāʻawi pū ka mea ʻike Hall-hopena i kahi hōʻailona o ka amplitude kiʻekiʻe (ʻo ka maʻamau he 10.8-V nalu nalu), e ʻae ana i ka mamao o ka lawe ʻana a hiki i 3,000 kapuaʻi ma waena o ka mea ʻike a me ka uila me ka ʻole o ka hoʻonui ʻana.
ʻO ka hoʻolālikelike ʻana i ka mīkini turbine
Hōʻike ka pihi hoʻololi ʻana i ka mīkini turbine maʻamau i ka pilina ma waena o ke kahe wai a me ka K-factor (pulses/gallon). Hiki ke pololei loa nā mika turbine; ma waena o 0.5-1% me kahi kiʻekiʻe e like me 0.1% o ka heluhelu ʻana (ke kahe maoli) a me ka linearity o ± 0.25% ma luna o kahi 10: 1 ākea ākea a i ʻole ± 0.15% linearity ma kahi 6: 1. ʻO ka hana hou ʻana mai ka ± 0.2% a ± 0.02% ma luna o ka laina laina.
Ma hope o ka hoʻopaʻa ʻia ʻana, hāʻawi ʻia nā mīkini kahe turbine a pau i ka mea hoʻohana hope me kahi K-factor i loko o nā puʻupuʻu no kēlā me kēia leo i loko o ka pūʻulu pololei i helu ʻia e ka mea hana. No ka pololei o ka mika kahe, hiki ke hāʻawi ʻia kekahi mau K-factor no nā ʻāpana like ʻole o nā pae kahe o ka mika. ʻO ka mea nui, pili ka K-factor wale nō i ka wai i hoʻohālikelike ʻia ka mika.
Nā Ana Akamai Loaʻa ka mika kahe turbine ALTM i nā nui mai ½” a 12” (15-300 mm) a hōʻike i kahi lakio hoʻohuli ākea me ka maopopo ʻole a me kahi hopena hiki ke hana hou ʻia. He maikaʻi loa ka ALTM no ke ana pololei ʻana o ke kahe koke ʻana o nā wai viscosity haʻahaʻa e like me ka wai piula a me ka wai demineralized, nā wahie, nā kinoea liquefied, nā aila wahie māmā, nā mea hoʻoheheʻe, a me nā wai lāʻau lapaʻau.
