Mhedzisiro yepneumatic valve positioner pneumaticvharafuyakavhara zvikonzero zvikuru nemhinduro
Valve positioner (inonziwo: Pneumatic valve positioner) chikamu chakakosha kugadzirisa vharafu, inowanzo shandiswa nepneumatic self-actuating control valve, inofambiswa neinobuda chiratidzo chemutongi, uye nechiratidzo chayo chekubuda kudzora wega- actuating control valve, kana nzvimbo yevharuvhu yekudzora, iyo stem offset inodzoserwa kuvhavha chinzvimbo nemagetsi mudziyo, Valve chinzvimbo chinotumirwa kune-pa-stage system software zvinoenderana nechiratidzo chemagetsi.
Valve positioner (inonziwo: Pneumatic valve positioner) chikamu chakakosha kugadzirisa vharafu, inowanzo shandiswa nepneumatic self-actuating control valve, inofambiswa neinobuda chiratidzo chemutongi, uye nechiratidzo chayo chekubuda kudzora wega- actuating control valve, kana nzvimbo yevharuvhu yekudzora, iyo stem offset inodzoserwa kuvhavha chinzvimbo nemagetsi mudziyo, Valve chinzvimbo chinotumirwa kune-pa-stage system software zvinoenderana nechiratidzo chemagetsi. Valve positioner chimiro: valve positioner inoenderana nechimiro uye musimboti inogona kukamurwa kuita pneumatic valve positioner, yemagetsi-gasi valve positioner yakangwara valve positioner. Valve positioner inogona kuwedzera simba rekugadzirisa vharafu, kuderedza dhizaini yekufambisa, kumhanyisa kumhanyisa tsinde, inogona kuvandudza mutsara wevharuvhu, kubvisa iyo stem friction simba uye kubvisa pesvedzero yesimba risingaenzaniswi, simbisa zvizere kumira kwakaringana uye kwakaringana. yevhavha yekugadzirisa. Valve positioner inoenderana mhando common actuator pneumatic actuator, yemagetsi actuator, yakananga sitiroko kuronga, Angle sitiroko kuronga musiyano.
Inoshandiswa kune otomatiki, bhuku remhando yakavhurika nekuvhara marudzi ese emavharuvhu, mafeni, etc. Valve positioner chikamu chakakosha chekumanikidza inodzora vharafu. Iyo valve stem offset chiratidzo inoonekwa seyekuisa mhinduro chaiyo yekuyera chiratidzo, uye inobuda chiratidzo chebhodhi rekudzora inoonekwa sechiratidzo chekuenzanisa. Kana izvo zviviri zvakasiyana, chiratidzo chinobuda kune actuator chinoshandurwa kuita iyo actuator chinzvimbo, uye imwe-kune-imwe tsamba pakati pevhavha stem offset nguva uye chiratidzo chekubuda chebhodhi rekutonga chinomiswa.
Naizvozvo, iyo valve positioner inoumba mhinduro yekudzora sisitimu ine stem offset seyeyero yechiratidzo chiratidzo uye kubuda kwebhodhi rekutonga sechiratidzo chekuisa. Iyo yekudzora shanduko yeiyo control system ndiyo inobuda chiratidzo chevhavha chinzvimbo kune actuator. Valve positioner kiyi muchiratidzo yakakamurwa kuita pneumatic valve positioner uye magetsi emagetsi valve positioner. Chiratidzo chepneumatic valve positioner chiratidzo chegasi, semuenzaniso, 20 ~ 100kPa gasi chiratidzo, chiratidzo chayo chekubuda zvakare chiratidzo chegasi. Magetsi midziyo yevhavha chinzvimbo chekuisa chiratidzo ndeye yakajairika magetsi kuyerera kana kushanda voltage siginecha, senge 4 ~ 20mA magetsi ekuyerera chiratidzo kana 1 ~ 5V yekushanda voltage chiratidzo, yemagetsi mudziyo wevhavha chinzvimbo chemukati chimiro chichashandurwa kuita magineti simba, uye ipapo kubuda gasi. chiratidzo kune rotary pressure regulating valve. Zvinoenderana nenzvimbo yekutungamira inogona kukamurwa kuita imwechete valve positioner uye kaviri valve positioner.
Unilateral valve positioner ine piston muchina actuator, valve positioner chete chinzvimbo chimwe chete chinoita basa, kaviri valve positioner inobata mativi ese episton muchina actuator cylinder, ita basa munzira mbiri. Zvinoenderana neiyo valve positioner inobuda uye kukosha kwekuwana kwechiratidzo chekuisa chakamisikidzwa mune yakanaka effect valve positioner uye reaction valve positioner.
Kana iyo yekuisa chiratidzo cheyakanaka-effect valve positioner inosimudzwa, chiratidzo chekubuda chinowedzerwawo, kuitira kuti kukosha kwekuwana kuve kwakanaka.
Kana iyo yekuisa chiratidzo cheiyo reaction valve positioner inosimudzwa, chiratidzo chekubuda chinodzikiswa uye kukosha kwekuwana kwakaipa. Zvinoenderana nevhavha chinzvimbo chekuisa chiratidzo chiratidzo chekufananidza kana chiratidzo chedata, chinogona kukamurwa kuita general valve positioner uye komputa interface yemagetsi emagetsi valve chinzvimbo.
General valve positioner type chiratidzo ndeyekufananidza kweyakajairwa kudzvanywa kana kuyerera kwemagetsi, kushanda voltage siginecha, komputa interface yemagetsi emagetsi valve positioner mhando chiratidzo ndiyo komputa interface yedhijitari chiratidzo. Zvinoenderana neiyo valve positioner haisi neCPU inogona kukamurwa kuita general magetsi evhavha positioner uye yakangwara yemagetsi valve positioner.
General magetsi emidziyo valve positioner haina CPU, saka, haina hungwaru, haigone kugadzirisa kwakakodzera kungwara kuverenga. Intelligent valve positioner neCPU, inogona kugadzirisa zvine chekuita nehuchenjeri kuverenga, senge sperm chiitiko rate chiteshi discrete system muripo, komputa interface yemagetsi emagetsi valve positioner inogonawo kutora PID uye mamwe mamodule echirongwa, kupedzisa kuverenga kunoenderana. Pneumatic valve yakavhara zvikonzero zvikuru uye zvigadziriso kutanga kune zvese, ngationgororei yega-inoshanda valve pneumatic valve yakavharwa ndiyo inoita kuti vharafu ive nehumwe huwandu hwekudonha, kuona kana kuvuza kwevhavha kwakakwira kupfuura kukosha kwakajairika, mhiri ndiyo dambudziko remhando yechigadzirwa. Chechipiri, iyo magetsi inoshandura inobuda haina kubatanidzwa nevhavha firimu musoro wekushanda kumanikidza. Kana vharafu yakanamatira muvhu.
Valve kutanga pane zvese, ngationgororei iyo yega-inoshanda valve pneumatic valve yakavharwa ndiyo inoita kuti gonhi rive nehumwe huwandu hwekudonha, kuona kana kuvuza kwevharuvhu kwakakwira kupfuura kukosha kwakajairika, kupfuura dambudziko remhando yechigadzirwa. Chechipiri, iyo magetsi inoshandura inobuda haina kubatanidzwa nevhavha firimu musoro wekushanda kumanikidza. Kana vharafu yakanamatira muvhu.
The valve spring force haikodzeri zvakanaka. Kana dzinde rakanamira.
Valve musimboti, yakakwira kumanikidza gedhi vharafu chikamu kupfeka firimu musoro vharafu disc kuvuza mutsi.
Common Positioning device kukanganisa.
Mhepo yekuvhura vharafu, zero torsion spring axial force yakakurisa. Dzinde ipfupi.
Gadzirisa vharuvhu pamberi uye mushure mekumanikidza musiyano wakakura kwazvo, chii chinonetsa chemuenzaniso sarudzo.
Kunyangwe iyo actuator yekubuda simba idiki, inogadziriswa yakakura inonzwisisika inobuda kumanikidza (PF kuwedzera simba rekubuda, yevhavha yekuvhara gasi, kutenderera kweruboshwe kwechikamu chekugadzirisa (yakasununguka), ndiko kuti, PO ~ PL shift, asi inoda. kuterera kune shanduko yehurongwa hwakazara sitiroko Nha.
Tinogona kutanga tawana chikonzero uye toshandisa mhinduro kubva pane zvataurwa pamusoro apa. Kana iwe uine manual pneumatic valve, ipapo nguva yese yakamiswa, rega munhu wese aite kusvetukira akafa, asiwo rega mudonzvo wedashibhodhi, uenzanise zvakare, zero uye yekumisikidza chiridzwa calibration zvakare; Pane zvikonzero zvakawanda nei nzvimbo yekuvhara yekufamba kurongeka isiri munzvimbo, hunde yevharuvhu yakapfeka zvishoma, uye iyo yakamanikidzwa gasi kudzvanywa kuri kusvika pachiyero. Kutanga, isa kukosha kwevhavha positioner, uye wozogadzirisa nzvimbo yekuvhara yekufamba kuronga; Mavharuvhu imhepo - yakavhurika kana mhepo - kuvhara mavharuvhu. Kana iri vheji yegesi, inogona kuona iyo pneumatic valve inoshanda kumanikidza, kuisa chimbo zero yekuyera chiyero chekugadzirisa haina dambudziko, uyezve, hapana kadhi vharafu. Kana iri gasi yakazaruka valve, iyo pneumatic valve yakaputsika, valve inofanira kuvharwa. Kana iyo isina kuvharwa, inogona kunge iyo yevhavha yemafuta yedunhu ndiro haina zvinhu zvakasviba zvakanamatira; Kana iyo valve yakavharwa netsaona, inorongedzerwa kubvunza kana kudzvanywa kwechiridzwa chechiridzwa kwakaringana, ndiko kuti, kana kudzvanywa kweiyo locator kunogona kugadzirisa kushanda kwevhavha yakavharwa; Tarisa kushanda kwekushanda kwevhavha yepneumatic haina kukwana, uye zvino tarisa pavhavha kana pane kadhi mamiriro, kana kuputika, zvakare yakavharwa.
Yakanyanya kukodzera yekutanga chimiro chekuisa mudziyo edza; Mhepo valve: 1, iyo axial simba rechirimo haina kukwana, inogona kuwedzerwa zvakakodzera. 2, mamiriro ekushanda anobvumira, valve inofanira kubviswa kuti iite muedzo wekumanikidza, tora mukana uyu kuti uongorore mamiriro ekuvhara kwevhavha yepamusoro yepamusoro-soro yegedhi valve, uye kana pane kukuvadzwa kwevhavha yevhavha uye high pressure gedhi valve.
3. Kana nyaya yekusavhara zvakare ikaitika, vheji inogona kuchekwa kuti ione kana pane zvinhu zvakasvibiswa pavhavha yepamusoro yegedhi revhavha yemwoyo. 4. 1. Simba reaxial rechitubu rakakura kwazvo, rinogona kuderedzwa zvakakodzera. 2.
3, kana mamiriro acho akaita zvakare padhuze asina kufa, anogona kucheka vharafu, tarisa kana pane zvinhu zvakasviba pavhavha yemoyo high pressure gedhi valve 4, tarisa valve pneumatic valve kushanda kudzvinyirira hakuna kukanganisa 5, chengetedza kana pane kukuvara kuvhavha disc 6, tarisa kana zero point yevhavha yakakwirira kana basa richiitwa mushure mechiitiko chekuvhara kwete kufa, Inorongedzerwa kutarisa maparameter makuru evhavha kuti uone kana pane musiyano pakati pe customized main parameters uye chaiyo yekushanda mamiriro.
Nguva yekutumira: Mar-01-2023
