He aha nā ʻano mika kahe kahawai hāmama a mākou e hoʻolako ai?

1. Mīkini kahe kahawai hāmama UOL no nā ʻano flume a me nā weir like ʻole

Hiki ke ana pololei ʻia kēia mika e ka pae o nā wai. Ke hoʻohana ʻia i ke ana ʻana o ke kahe no ke kahawai hāmama, pono e hoʻokomo i ka flume a me ka weir.Hiki i ka weir ke hoʻololi i ke kahe ʻana i ka pae o ka pae wai ma ke kahawai hāmama. Ana ka mika i ka pae wai i loko o ke awāwa weir wai, a laila helu i ka nui o ke kahe e like me ka pilina wai-kahe o ke awāwa weir wai like i loko o ka microprocessor i loko o ka mika. ʻO nā awāwa weir nui he mau awāwa Bacher, weir triangular a me weir rectangular. I ke ana ʻana i ka pae wai, hoʻohana ʻia ka ʻenehana echo ultrasonic, a ua hoʻopaʻa ʻia ke ana pae ma luna o ke kiko nānā pae wai o ka weir. Hoʻonohonoho pololei ʻia ka mokulele transmitter o ke ana pae me ka ʻili wai. Ma lalo o ka mana o ka microcomputer, hoʻouna a loaʻa ka mika pae ultrasonic i nā nalu ultrasonic. Wahi a Hb=CT/2 (ʻo C ka wikiwiki o ke kani o ka nalu ultrasonic i ka lewa, ʻo T ka manawa o ka nalu ultrasonic i ka lewa), helu ʻia ka mamao Hb ma waena o ka mika pae ultrasonic a me ka pae wai i ana ʻia, i mea e loaʻa ai ke kiʻekiʻe o ka pae wai Ha. ʻO ka hope loa, loaʻa ke kahe wai e like me ke ʻano helu kahe. Ma muli o ke ana ʻole ʻana i ka pilina, hiki ke hoʻohana ʻia i nā wahi ʻino. He kūpono ka mika kahe kahawai hāmama no nā waihona wai, nā muliwai, nā papahana mālama wai, nā kahawai hoʻololi wai o ke kūlanakauhale, nā kahawai hoʻokahe wai o ka muliwai e hoʻoluʻu ana i ka mea hana mana wela, ka mālama ʻana i ka wai ʻino i loko a me nā kahawai hoʻokuʻu, nā kūlana hana o ka hoʻokuʻu ʻana i ka wai ʻino o nā ʻoihana a me nā papahana mālama wai a me nā kahawai irrigation mahiʻai.

2. DOF6000 serial Area velocty open channel flowmeter no ke kahawai a i ʻole ka paipu i hoʻopiha hapa ʻia

Hoʻohui ka mika kahe wikiwiki o ka wahi i ke ana ʻana o ka wikiwiki o ke kahe a me ke ana ʻana o ka pae wai, hoʻohana ia i ke kumumanaʻo Doppler ultrasonic no ke ana ʻana o ka nui o ke kahe.I ke ana ʻana i ka pae wai, ua kau ʻia ka sensor ma lalo a kokoke paha i kahi wai. Ma o ke sensor kaomi hydrostatic, loaʻa i ke kaula hōʻailona lako mana ka hana o ka hoʻoulu ʻana i ka ea. Hoʻohana ʻia ke kaomi lewa ma luna o ka ʻili wai ma ke ʻano he kaomi kuhikuhi o ke sensor kaomi hydrostatic e ana i ke kaomi wai, i mea e helu ai i ke kiʻekiʻe o ka pae wai. He kūpono ka mika kahe ultrasonic wikiwiki no ke ana ʻana i nā kahawai hāmama a i ʻole nā ​​​​paipu piha ʻole me nā anawaena ʻoi aku ma mua o 300mm no ka hoʻokuʻu ʻana i ka wai ʻino a me ka wai ʻino, nā kahawai maʻemaʻe, ka wai inu a me ka wai kai.