Kusankha ndi Kugwiritsa Ntchito Electromagnetic Flow Meter mu Sewage Flow Measurement

Mawu Oyamba

Zolondola komanso zodalirika zoyezetsa ndikuwongolera kayendedwe ka zimbudzi m'malo opangira zimbudzi zamafuta akuchulukirachulukira. Nkhaniyi ikufotokoza za kasankhidwe ndi kagwiritsidwe ntchito ka ma electromagnetic flowmeters. Fotokozani makhalidwe ake posankha ndi kugwiritsa ntchito.

Flow mita ndi imodzi mwa zida zochepa zomwe zimakhala zovuta kugwiritsa ntchito kuposa kupanga. Izi zili choncho chifukwa kuthamanga kwake ndi kuchuluka kwamphamvu, ndipo palibe kukangana kwa viscous kokha m'madzi omwe akuyenda komanso zochitika zovuta zotuluka monga ma vortices osakhazikika ndi mafunde achiwiri. Chida choyezera chokhacho chimakhudzidwa ndi zinthu zambiri, monga payipi, kukula kwa caliber, mawonekedwe (zozungulira, amakona anayi), malire, katundu wapakati (kutentha, kuthamanga, kachulukidwe, kukhuthala, kunyansa, kuwononga, etc.), kutuluka kwamadzimadzi (mkhalidwe wa chipwirikiti, kugawa kwa liwiro, etc.) Poyang'anizana ndi mitundu yopitilira khumi ndi mazana amitundu yama mita otaya kunyumba ndi kunja (monga volumetric, kuthamanga kosiyana, turbine, dera, electromagnetic, akupanga, ndi matenthedwe otaya mita omwe apangidwa motsatizana), momwe mungasankhire zolondola pazinthu monga kutuluka, zofunika unsembe, mikhalidwe ya chilengedwe, ndi chuma ndizo maziko komanso maziko ogwiritsira ntchito bwino ma mita otaya. Kuwonjezera pa kuonetsetsa kuti chipangizocho chili ndi ubwino wake, kuperekedwa kwa ndondomeko ya ndondomeko komanso ngati kuika, kugwiritsa ntchito, ndi kukonza chidacho n'kofunika kwambiri. Nkhaniyi ikufotokoza za kusankha ndi kugwiritsa ntchito ma electromagnetic flow mita.

Kusankhidwa kwa mita ya electromagnetic flow

Ndi chitukuko cha sayansi ndi zamakono, luso lodziwiratu lodziwikiratu lapangidwanso kwambiri, ndipo zida zodziwira zokha zakhala zikugwiritsidwanso ntchito kwambiri pochiza zimbudzi, kotero kuti zomera zowonongeka zamadzimadzi sizimangopulumutsa anthu ambiri ndi zinthu zakuthupi koma chofunika kwambiri, zikhoza kukhala panthawi yake Pangani kusintha kwa ndondomekoyi. Nkhaniyi itenga ma electromagnetic flow metre a Hangzhou Asmik monga chitsanzo kuti afotokozere kagwiritsidwe ntchito ka zida zodziwira okha pakuchotsa zimbudzi ndi zovuta zina zomwe zilipo.

Mapangidwe a electromagnetic flow mita

Chida chodziwikiratu ndi chimodzi mwazinthu zofunika kwambiri pazida zowongolera zokha. Chida chodziwikiratu chodziwikiratu chimakhala ndi magawo atatu: ① sensa, yomwe imagwiritsa ntchito ma siginecha osiyanasiyana kuti izindikire kuchuluka kwa analogi; ② transmitter, yomwe imatembenuza chizindikiro cha analogi choyezedwa ndi sensa kukhala chizindikiro cha 4-20mA chamakono ndikuchitumiza ku In the programmable logic controller (PLC); ③ chiwonetsero, chomwe chimawonetsa zotsatira zake mwachidwi ndikupereka zotsatira. Zigawo zitatuzi zimaphatikizidwa mwachilengedwe, ndipo popanda gawo lililonse, sizingatchulidwe kuti chida chathunthu. Chida chodziwikiratu chakhala chikugwiritsidwa ntchito kwambiri popanga mafakitale chifukwa cha miyeso yake yolondola, kuwonetsa momveka bwino, komanso ntchito yosavuta. Kuphatikiza apo, chida chodziwikiratu chimakhala ndi mawonekedwe ndi ma microcomputer mkati, ndipo ndi gawo lofunikira pamakina owongolera okha. Imatchedwa "Maso a Automation Control System".

Kusankhidwa kwa mita ya electromagnetic flow

Popanga mafuta, kuchuluka kwa zinyalala zamafuta kudzapangidwa chifukwa cha zofunikira pakupangira, ndipo malo opangira zimbudzi ayenera kuyang'anira kutuluka kwa zimbudzi. M'mapangidwe am'mbuyomu, ambirimita yothamangaamagwiritsa ntchito vortex flow meters ndi orifice flow meters. Komabe, muzogwiritsira ntchito, zimawoneka kuti mtengo wowonetsera woyezedwa uli ndi kusiyana kwakukulu kuchokera kumayendedwe enieni, ndipo kupatukako kumachepetsedwa kwambiri posinthira ku mita ya electromagnetic flow.

Malinga ndi mawonekedwe a zimbudzi zokhala ndi kusintha kwakukulu kotuluka, zonyansa, kutsika kwa dzimbiri, ndi ma conductivity ena amagetsi, ma electromagnetic flowmeters ndi chisankho chabwino choyezera kutuluka kwa zimbudzi. Ili ndi kamangidwe kakang'ono, kakulidwe kakang'ono, ndikuyika bwino, kugwira ntchito, ndi kukonza. Mwachitsanzo, njira yoyezera imatengera kapangidwe kanzeru, ndipo kusindikiza kwathunthu kumalimbikitsidwa, kotero kuti imatha kugwira ntchito bwino m'malo ovuta.

Zotsatirazi ndizofotokozera mwachidule za mfundo zosankhidwa, momwe mungakhazikitsire, ndi zodzitetezeraelectromagnetic flowmeters.

Kusankhidwa kwa Caliber ndi Range

Mlingo wa transmitter nthawi zambiri umakhala wofanana ndi wa mapaipi. Ngati dongosolo la mapaipi liyenera kupangidwa, caliber ikhoza kusankhidwa molingana ndi kayendedwe ka kayendedwe kake ndi kayendedwe kake. Kwa ma electromagnetic flow metre, kuthamanga kwa 2-4m / s ndikoyenera. Muzochitika zapadera, ngati pali tinthu tating'onoting'ono tamadzimadzi, poganizira za kuvala ndi kung'ambika, mlingo wamba wamba ≤ 3m / s ukhoza kusankhidwa. Zamadzimadzi owongolera osavuta kulumikiza. Kuthamanga kwa liwiro ≥ 2m / s kungasankhidwe. Kuthamanga kwa kuthamanga kukadziwika, mtundu wa transmitter ukhoza kuzindikirika molingana ndi qv=D2.

Mtundu wa transmitter ukhoza kusankhidwa molingana ndi mfundo ziwiri: imodzi ndikuti mulingo wathunthu wa chidacho ndi wamkulu kuposa kuchuluka komwe kumayembekezeredwa; china ndi chakuti kutuluka kwabwinoko kumakhala kwakukulu kuposa 50% ya sikelo yonse ya chida kuti zitsimikizire kulondola kwa muyeso wina.

Kusankha kutentha ndi kupanikizika

Kuthamanga kwamadzimadzi ndi kutentha komwe ma electromagnetic flow mita amatha kuyeza ndizochepa. Posankha, kuthamanga kwa ntchito kuyenera kukhala kotsika kusiyana ndi kukakamizidwa kogwira ntchito kwa mita yothamanga. Pakali pano, specifications ntchito kuthamanga kwa flowmeters opangidwa m'nyumba atomu ndi: m'mimba mwake ndi zosakwana 50mm, ndi kuthamanga ntchito ndi 1.6 MPa.

Kugwiritsa ntchito m'malo ochizira zimbudzi

Malo opangira zimbudzi nthawi zambiri amagwiritsa ntchito mita ya HQ975 electromagnetic flow metre yopangidwa ndi Shanghai Huaqiang. Kupyolera mu kufufuza ndi kusanthula momwe ntchito ya Beiliu sewage treatment station ya No. Chiwerengero cha 7 otaya mamita kuphatikizapo backwashing, zobwezeretsanso madzi, ndi otaya mamita akunja ali ndi kuwerenga molakwika ndi kuwonongeka, ndi malo enanso ali ndi mavuto ofanana.

Zomwe zilipo komanso zovuta zomwe zilipo

Pambuyo pa miyezi ingapo yogwira ntchito, chifukwa cha kukula kwakukulu kwa mita yomwe imalowa m'madzi, kuyeza kwa mita yolowera madzi kunali kolakwika. Kukonzekera koyamba sikunathetse vutoli, kotero kuti kutuluka kwa madzi kumangoganiziridwa ndi kutuluka kwa madzi kunja. Pambuyo pa chaka chimodzi chogwira ntchito, ma flow meters ena anavutika ndi kugunda kwa mphezi ndi kukonzanso, ndipo kuwerengera kunali kosalondola. Zotsatira zake, kuwerengera kwa ma electromagnetic flow metres kulibe phindu lililonse. Nthawi zina pamakhala chodabwitsa kapena palibe mawu. Deta yonse yopangira madzi imawerengeredwa. Kuchuluka kwa madzi opangidwa pa siteshoni yonseyo sikunayesedwe. Dongosolo la voliyumu yamadzi m'malipoti osiyanasiyana a data ndi mtengo woyerekezeredwa, wopanda kuchuluka kwamadzi enieni komanso chithandizo. Zolondola ndi zowona za deta zosiyanasiyana sizingatsimikizidwe, zomwe zimawonjezera zovuta za kayendetsedwe ka kupanga.

Pakupanga kwatsiku ndi tsiku, chidacho chitakhala ndi vuto, oyendetsa sitima ndi oyendetsa migodi adalengeza ku dipatimenti yoyenerera nthawi zambiri ndipo adalumikizana ndi wopanga kuti akonze nthawi zambiri, koma panalibe zotsatirapo, ndipo ntchito yogulitsa pambuyo pake inali yosauka. Zinali zofunikira kulankhulana ndi ogwira ntchito yosamalira kangapo musanakafike pamalowo. Zotsatira zake sizabwino.

Chifukwa cha kusalondola bwino komanso kulephera kwakukulu kwa chida choyambirira, zimakhala zovuta kukwaniritsa zofunikira za zizindikiro zosiyanasiyana zoyezera pambuyo pokonza ndi kukonza. Pambuyo pofufuza ndi maphunziro ambiri, wogwiritsa ntchito amatumiza mafomu oti achotsedwe, ndipo dipatimenti yoyenerera yoyezera ndi kuyang'anira chigawocho ndi yomwe ili ndi udindo wovomereza. . The HQ975 electromagnetic flow metres omwe sanafikire moyo wautumiki womwe watchulidwa, koma amakhala ndi moyo wautali wautumiki, kuwonongeka kwakukulu kapena kuwonongeka kwa ukalamba kumachotsedwa ndikusinthidwa, ndi mitundu ina yamagetsi amagetsi amagetsi amasinthidwa malinga ndi mfundo zosankhidwa pamwambapa molingana ndi kupanga kwenikweni.

Chifukwa chake, kusankha koyenera komanso kugwiritsa ntchito moyenera ma electromagnetic flowmeters ndikofunikira kwambiri kuti zitsimikizire kulondola kwa muyeso ndikutalikitsa moyo wautumiki wa chidacho. Kusankhidwa kwa mita yoyenda kuyenera kutengera zofunikira zopanga, kuyambira momwe zinthu zilili popereka zida zamankhwala, mosamalitsa poganizira zachitetezo, kulondola komanso chuma cha kuyeza, ndikuwunika njira ya chipangizo choyezera sampuli ndi mtundu wa chida choyezera malinga ndi chikhalidwe ndi kutuluka kwa madzimadzi omwe amayezedwa ndi mafotokozedwe.

Kusankha molongosoka zachidacho ndi gawo lofunikira kwambiri pakuwonetsetsa moyo wautumiki komanso kulondola kwa chidacho. Chisamaliro chapadera chiyenera kuperekedwa pakusankhidwa kwa static pressure ndi kukana kutentha. Kuthamanga kwa static kwa chida ndi kuchuluka kwa kukana kukakamiza, komwe kuyenera kukhala kokulirapo pang'ono kuposa kukakamiza kwa sing'anga yoyezera, nthawi zambiri 1.25, kuwonetsetsa kuti palibe kutayikira kapena ngozi. Kusankhidwa kwa miyeso yoyezera makamaka kusankha malire apamwamba a sikelo ya chida. Ngati yasankhidwa yaying'ono kwambiri, idzadzaza mosavuta ndikuwononga chida; ngati yasankhidwa kukhala yaikulu kwambiri, idzalepheretsa kulondola kwa kuyeza. Nthawi zambiri, amasankhidwa ngati 1.2 mpaka 1.3 nthawi yamtengo wapatali wothamanga mu ntchito yeniyeni.

Chidule

Pakati pamitundu yonse yamadzi otaya zimbudzi, ma electromagnetic flow mita imagwira bwino ntchito, ndipo throttling flow mita imakhala ndi ntchito zosiyanasiyana. Pokhapokha pomvetsetsa machitidwe omwe akuyenda pamamita amatha kusankha mita yothamanga ndikupangidwira kuti muyeso ndi kuwongolera kwa madzi amadzimadzi Zolondola komanso zodalirika zimakwaniritsidwa. Pamaziko owonetsetsa kuti chidacho chikugwiritsidwa ntchito bwino, yesetsani kukonza zolondola komanso zopulumutsa mphamvu za chidacho. Pachifukwa ichi, sikoyenera kusankha chida chowonetsera chomwe chimakwaniritsa zofunikira zolondola komanso kusankha njira yoyenera yoyezera malinga ndi mawonekedwe a sing'anga yoyezera.

Mwachidule, palibe njira yoyezera kapena mita yothamanga yomwe ingagwirizane ndi madzi osiyanasiyana komanso mikhalidwe yotuluka. Njira zoyezera ndi zomangira zimafunikira miyeso yosiyanasiyana, njira zogwiritsira ntchito, ndi momwe amagwiritsidwira ntchito. Mtundu uliwonse uli ndi ubwino wake wapadera ndi zoperewera. Choncho, mtundu wabwino kwambiri womwe ndi wotetezeka, wodalirika, wodalirika, wodalirika komanso wodalirika uyenera kusankhidwa poyerekezera mwatsatanetsatane njira zosiyanasiyana zoyezera ndi zida za zida.