He aha ka Vortex Flow Meter?

ʻO ka mika vortex kahi ʻano o ka volumetric flow meter e hoʻohana ana i kahi ʻano kūlohelohe i hana ʻia ke kahe ka wai a puni kahi mea bluff.Hana ʻia nā mika kahe o ka Vortex ma lalo o ke kumu hoʻoheheʻe vortex, kahi e hoʻoheheʻe ʻia ai nā vortices (a i ʻole eddies) ma lalo o ke kahawai o ka mea.ʻO ke alapine o ka hoʻoheheʻe ʻana o ka vortex i kūlike me ka wikiwiki o ka wai e kahe ana ma ka mika.

ʻOi aku ka maikaʻi o nā mika kahe Vortex no nā ana kahe ʻana kahi e pilikia ai ka hoʻokomo ʻana i nā ʻāpana neʻe.Loaʻa iā lākou ma ka papa hana ʻenehana, keleawe, a i ʻole nā ​​​​mea hana plastik āpau.He haʻahaʻa ka ʻike i nā ʻano like ʻole o ke kaʻina hana a, me ka ʻole o nā ʻāpana neʻe, ʻaʻahu haʻahaʻa haʻahaʻa i hoʻohālikelike ʻia me nā ʻano mika kahe.

Hoʻolālā ʻo Vortex Flow Meter

Hana ʻia ka mīkini kahe vortex me 316 stainless steel a i ʻole Hastelloy a loaʻa i kahi kino bluff, kahi hui sensor vortex, a me nā mea uila uila - ʻoiai hiki ke kau ʻia ka hope ma kahi mamao (Figure 2).Loaʻa maʻamau lākou i ka nui flange mai ka ½ in. a hiki i ka 12 in. ʻO ke kumukūʻai i hoʻokomo ʻia o nā mika vortex he hoʻokūkū me ka nui o nā mika puka ma lalo o ʻeono iniha.He haʻahaʻa loa ke kumu kūʻai haʻahaʻa loa o nā mita kino wafer (flangeless), ʻoiai ʻoi aku ka maikaʻi o nā mika flanged inā pilikia ke kaʻina hana a i ʻole ma kahi wela kiʻekiʻe.

Ua hoʻāʻo ʻia nā ʻano kino Bluff (pāhālike, rectangular, t-shaped, trapezoidal) a me nā ana e hoʻokō ai i nā ʻano i makemake ʻia.Ua hōʻike ʻia ka hoʻāʻo ʻana i ka linearity, nā palena helu Reynolds haʻahaʻa, a me ka naʻau i ka distortion profile velocity ʻokoʻa wale me ke ʻano o ke kino bluff.I ka nui, pono ka laula o ke kino bluff he hapa nui o ke anawaena paipu e komo ai ke kahe holookoa i ka hookahe.ʻO ka lua, ʻo ke kino bluff pono e hoʻopuka i nā ʻaoʻao ma ka ʻaoʻao i luna e hoʻoponopono i nā laina o ka hoʻokaʻawale ʻana, me ka nānā ʻole i ka nui o ke kahe.ʻO ke kolu, ʻo ka lōʻihi o ke kino bluff ma ke ala o ke kahe ʻana he mau helu o ka laula o ke kino bluff.

I kēia lā, ʻo ka hapa nui o nā mika vortex e hoʻohana i ka piezoelectric a i ʻole capacitance-type sensor e ʻike ai i ka oscillation kaomi a puni ke kino bluff.Ke pane nei kēia mau mea ʻike i ka oscillation puʻe me kahi hōʻailona puka haʻahaʻa haʻahaʻa i loaʻa ke alapine like me ka oscillation.ʻO ia mau mea ʻike he modular, maʻalahi, maʻalahi ke hoʻololi ʻia, a hiki ke hana ma luna o kahi ākea o nā pae wela - mai nā wai cryogenic a i ka mahu wela.Hiki ke loaʻa nā ʻike i loko o ke kino mika a i waho paha.Hoʻopili pololei ʻia nā mea ʻike wai e ka piʻi ʻana o ke kaomi vortex a ua hoʻopaʻa ʻia i loko o nā hihia paʻakikī e pale aku i ka ʻino a me nā hopena erosion.

ʻO nā mea ʻike o waho, ʻo ka maʻamau piezoelectric strain gages, ʻike i ka hoʻokahe pololei ʻana o ka vortex ma o ka ikaika i hana ʻia ma ka pahu shedder.ʻOi aku ka makemake o nā mea ʻike o waho ma nā noi erosive/corrosive nui e hōʻemi i nā kumukūʻai mālama, ʻoiai ʻo nā mea ʻike kūloko e hāʻawi i ka laulā maikaʻi (ʻoi aku ka maikaʻi o ke kahe ʻana).ʻAʻole lākou i maʻalahi i ka haʻalulu paipu.ʻO ka hale uila ka mea maʻamau i helu ʻia i ka pahū a me ka weatherproof, a loaʻa i ka module transmitter uila, nā pilina hoʻopau, a me ke koho ʻana i kahi hōʻailona kahe kahe a / a i ʻole ka huina.

Nā Kaila Vortex Flow Meter

Hāʻawi nā mika vortex akamai i kahi hōʻailona puka kikohoʻe e loaʻa ana ka ʻike hou aku ma mua o ka kahe kahe wale nō.Hiki i ka microprocessor i loko o ka flowmeter ke hoʻoponopono pono no ka lawa ʻole o nā kūlana paipu pololei, no ka ʻokoʻa ma waena o ke anawaena lua a me ka matin.

Nā noi a me nā palena

ʻAʻole ʻōlelo pinepine ʻia nā mita Vortex no ka hoʻopaʻa ʻana a i ʻole nā ​​​​mea hoʻoheheʻe ʻē aʻe.ʻO kēia no ka mea hiki ke hāʻule i lalo o ka palena helu Reynolds haʻahaʻa o ka mika.ʻOi aku ka liʻiliʻi o ka pūʻulu holoʻokoʻa, ʻoi aku ka nui o ka hewa o ka hopena.

ʻAʻole hiki i nā kinoea puʻe haʻahaʻa (haʻahaʻa haʻahaʻa) ka puʻuwai puʻupuʻu ikaika, ʻoi aku inā haʻahaʻa ka wikiwiki o ka wai.No laila, i loko o ia mau lawelawe, ʻilihune ka laulā o ka mika a ʻaʻole hiki ke ana ʻia nā kahe haʻahaʻa.Ma ka ʻaoʻao ʻē aʻe, inā ʻae ʻia ka hiki ke hoʻemi ʻia a pololei ka nui o ka mika no ke kahe maʻamau, hiki ke noʻonoʻo ʻia ka vortex flowmeter.