ChiiPneumatic Control Valve?

Pneumatic Control Valve ndeyekumanikidza mhepo sesimba sosi, kune cylinder se actuator, uye nerubatsiro rwechinzvimbo, chinoshandura, solenoid mavharuvhu uye zvimwe zvinongedzo kutyaira vharafu, kuzadzisa on-off kana proportional regulation, gamuchira kutonga. chiratidzo cheindasitiri otomatiki control system kugadzirisa kuyerera, kudzvanywa, tembiricha uye mamwe maitiro maparamita.Pneumatic Control Valve inoratidzirwa nekudzora kuri nyore, kukurumidza kupindura, uye zvakachengeteka, hapana mamwe matanho ekuputika.Zvisinei, kushanda kwevhavha nguva nenguva kunokundikana, tichitevera tichatsanangura zvakadzama valve regulator inogona kuonekwa 5 marudzi ekukundikana uye kurapwa kwayo.

Type Single-seat, double seat, sleeve type Size Range(Inch) DN20 to DN200 (3/4″ to 8″) Pressure 16/40/64 bar (232/580/928 psi) TemperatureStandard type: -20℃ kusvika 200 ℃ (-4°F kusvika 392°F)Kudzikira-tembiricha mhando:-60℃ kusvika 196℃ (-76°F kusvika 384.8°F)Kutonhora mhando:-40℃ kusvika 450℃ (-40°F kusvika 842°F )Kubatanidza Sarudzo Dzakaputika kana Welded Valve Material WCB, CF8, CF8M, Cast iron Seal Material PTFE Pneumatic Accessories Positioner, FRL, pneumatic solenoid vharafu uye muganhu chinja Kuyerera maitiro Akaenzana muzana, mutsara, inokurumidza-kuvhura Actuator Type Multi-spring diaphragm Actuator Action actuator. mhando Yakananga chiito, reverse chiito Chitubu chiyero 20 kusvika100KPa, 40 kusvika 200KPa, 80 kusvika 240KPa Supply pressure 0.4~0.5MPa Adjustable range 50:1 Mutengo Dzvanya apa kuti uwane mutengo uri nani!

5 Yakajairwa Mhosho dzePneumatic Control Valve:

1. The Control Valve haishande

Chekutanga simbisa kana gasi sosi kudzvanywa kuri kwakaringana, tsvaga gasi sosi kutadza.Kana kudzvanywa kwemhepo kuri kwakajairika, tarisa kana iyo amplifier yenzvimbo kana yakadzvanywa mhepo inoshandura ine inobuda.

2. Kuvharika kwevhavha

Mumamiriro ezvinhu akadaro, unogona kukurumidza kuvhura, kuvhara yechipiri Mutsetse kana kudzora vharafu, kuitira kuti zvinhu zvakabiwa kubva wechipiri mutsetse kana kudzora vharafu aiva pakati kumhanya.Uye zvakare, iwe unogona zvakare kusungirira hunde nenyere dzepombi, mukuwedzera kune iyo chiratidzo kudzvanywa, yakanaka uye yakaipa simba rinotenderera tsinde, kuitira kuti vheji yepakati flash kadhi nzvimbo.

Kana isingakwanise kugadzirisa dambudziko, inogona kuwedzera gasi sosi kudzvanywa, kuwedzera simba rekutyaira kuti rifambe kumusoro nekudzika kakawanda kakawanda, rinogona kugadzirisa dambudziko.Kana vachiri vasingagoni kufamba, zvino vanofanira kuita kudzora vharafu disassembly processing, chokwadi, basa iri rinoda simba unyanzvi unyanzvi, zvinofanira kuitwa nerubatsiro nenyanzvi uye unyanzvi vashandi, zvimwe zvakakomba migumisiro.

3. Kubuda kwevhavha

Kudonha kweiyo pneumatic control valve kunowanzo kukonzerwa nekudonha kwemukati kwevhavha yekudzora, kubuda kwekurongedza uye kubuda kwevhavha core uye chigaro chevhavha.

3.1 Internal Leakage

Valve stem kureba kusagadzikana, gasi vharafu hunde kureba, kudzika kumusoro (kana pasi) chinhambwe hachina kukwana, zvichiita kuti pave nemukaha pakati peSPOOL nechigaro chevharuvhu, haigone kubata zvizere,

3.2 Packing Leakage

Kuti uite kuti zvinhu zvive nyore kutakura, chamfer kumusoro kwebhokisi rekuputira, isa simbi inodzivirira mhete ine gomba diki-rinodzivirira pazasi pebhokisi, cherechedza kuti nzvimbo yekubata pakati pemhete yekudzivirira uye kupfekedza haigone kuve. ndege yakarerekera.

Kuitira kudzivirira kuti stuffing isasundirwe kunze nepakati pressure.Iyo yepamusoro yebhokisi rekupfekedza uye iyo yekubatanidza yekubatanidza chikamu inofanira kupedzwa kuvandudza kupedzisa kwepamusoro uye kuderedza kupfeka kupfeka.Flexible graphite inosarudzwa sechizadza nekuda kwekusimba kwayo kwemhepo, simba diki rekukweshana, shanduko diki mukushandiswa kwenguva refu, kupfeka kudiki uye kubvaruka, kuchengetedzeka kuri nyore, uye kupikisa kumanikidza uye kushomeka kwekushisa kwakanaka nekuti simba rekukwenya harina. shanduko mushure mekunge gland bhaudhi yakasimbiswa zvakare isina ngura yemukati media, uye hunde uye stuffing bhokisi mukati kusangana kwesimbi hakuiti gomba kana ngura.

Nenzira iyi, nyatso chengetedza iyo valve stem packing tsamba chisimbiso, simbisa kuvimbika kwekurongedza chisimbiso, hupenyu hwebasa hunovandudzwawo zvakanyanya.

3.3 Valve Core, Valve Seat Deformation Leakage

Kusarudzwa kwezvinhu zvisingadziviriri, kuvepo kwegomba, trachoma uye zvimwe zvirema zvechigadzirwa kuti zvibviswe zvachose.Kana iyo deformation yevhavha yepakati uye chigaro isiri yakanyanya kuoma, yakanaka sandpaper inogona kushandiswa kukuya, kubvisa maronda, kugadzirisa chisimbiso kupedzisa, kugadzirisa chisimbiso kushanda.Kana kukanganisa kwakakomba, unofanira kutsiva valve itsva.

4. Oscillates

Kuoma kwechitubu chevhavhavha yekudzora haina kukwana, chiratidzo chinobuda chevhavhavha yekudzora haina kugadzikana uye inoshanduka nekukurumidza, izvo zvinokonzeresa nyore kudzora Valve oscillation.

Sezvo zvinokonzeresa oscillation zvakasiyana, zvinodikanwa kuita kongiri ongororo yematambudziko chaiwo.Semuenzaniso, vharafu yekugadzirisa ine guru rigidity spring inosarudzwa, uye iyo piston execution structure inoshandiswa panzvimbo.

Iyo pombi uye chigadziko chiri kudengenyeka kwechisimba, uye kupindira kwekudengenyeka kunogona kubviswa nekuwedzera kutsigirwa.Shandura chimiro chakasiyana chevhavha yekudzora.Kushanda mukuvhurika kudiki kunokonzerwa neoscillation, kunokonzerwa nekusarudzika kwakashata, kunyanya, nekuti iyo valve inoyerera simba C kukosha kwakakura kwazvo, inofanira kusarudzwa zvakare, sarudza kuyerera kweiyo C kukosha kudiki kana kushandiswa kwe-sub- range control kana kushandiswa kwevharuvhu yemubereki kukurira vharafu yekudzora inoshanda mukuvhura kudiki kunokonzerwa neiyo oscillation.

5. Noise

5.1 Nzira Yekubvisa Resonance Noise

Chete kana iyo control valve resonance, pane simba repamusoro uye inoburitsa anopfuura 100 decibels eruzha rwakasimba.Vamwe vanoratidza kudedera kwakasimba, ruzha haruna kukura, kumwe kudedera hakuna simba, asi ruzha rwakakura kwazvo;kumwe kudedera uye ruzha zvakakura.Ruzha urwu runoburitsa monotonic ruzha pane frequency pakati pe3000 ne7000 Hz.Zviri pachena, nekubvisa resonance, ruzha ruchanyangarika.

5.2 Cavitation Noise Atement

Cavitation ndiyo sosi huru ye hydrodynamic ruzha.Kana cavitation ikaitika, bubble rinoputika uye kuburitsa yakakwira-kumhanya, zvichikonzera mhirizhonga yemunharaunda uye cavitation ruzha.Ruzha rwacho rune ma frequency range uye rwunoburitsa ruzha rwakafanana neirwo runogadzirwa nemvura ine matombo.Kubvisa uye kuderedza cavitation inzira inoshanda yekubvisa uye kuderedza ruzha.

5.3 Shandisa Nzira Yakakora Yemadziro

Kushandisa gobvu-walled chubhu ndiyo imwe yenzira dzekubata nemasekete enzwi.Kushandisa madziro akatetepa kunogona kuwedzera ruzha ne5 DB, kushandisa gobvu remadziro chubhu kunogona kuderedza ruzha ne0 ~ 20 DB.Iko kukora kwemadziro edhayamita imwechete, iyo yakakura dhayamita yehumwe madziro ukobvu, zviri nani kudzikisa ruzha.Kune DN200 mapaipi ane madziro ukobvu hwe6.25,6.75,8,10,12.5,15,18,20 uye 21.5 mm, ruzha runogona kuderedzwa ne-3.5, -2 (kureva kuwedzera), 0,3,6,8, 11, 13 uye 14.5 DB zvakateerana.Zvechokwadi, kana rusvingo rwakakora, mari yacho inowedzera.

5.4 Shandisa Inzwi Inobvonza Material Method

Iyi zvakare ndiyo yakajairika, nzira inoshanda kwazvo yekugadziriswa nzira yekurira.Inzwi-inobata zvinhu zvinogona kushandiswa kuvharira kunobva ruzha uye pombi kuseri kwevharuvhu.Zvakakosha kutaura kuti kushanda kwekudzikisa ruzha kunomira pese panoiswa zvinhu zvinobata ruzha uye machubhu akakora nemadziro anoshandiswa, sezvo ruzha ruchigona kufamba nzendo refu kuburikidza nekuyerera kwemvura.Iyi nzira inoshandiswa apo ruzha rusina kunyanya kukwira uye urefu hwepombi hauna kureba, sezvo iri nzira inodhura.

5.5 Series Silencer Nzira

Inokodzera kunyarara kweaerodynamic ruzha.Inogona kunyatso kubvisa ruzha mukati memvura uye kudzvanya nhanho yeruzha inopfuudzwa kune yakasimba muganho layer.Iyi nzira inonyanya kushanda uye ine hupfumi apo huwandu hwekuyerera kwehuwandu hwakakwirira kana chiyero chekudzvinyirira kunodonha pamberi uye mushure mevhavha yakakwirira.Iko kushandiswa kweabsorption type series silencers kunogona kuderedza ruzha.Mafungiro ezvehupfumi, zvisinei, anowanzo kugumira pakuderedzwa kwe25 DB.

5.6 Enclosure Nzira

Shandisa zvakavharirwa, dzimba uye zvivakwa kuparadzanisa kunobva ruzha kubva kune kunze kwezvakatipoteredza kusvika mukati memiganhu inogamuchirwa.

5.7 Series Throttling

Kana chiyero chekumanikidza chevhavha yekudzora chakakwirira (△ P / p 1≥0.8) , nzira ye-series throttling inoshandiswa kuparadzira kudonha kwese kudonha pavhavha yekudzora uye yakagadziriswa throttling element shure kwevhavha.DIFFUSERS, porous restrictors, semuenzaniso, ndiyo inonyanya kushanda nzira yekudzikisa ruzha.Kuti uwane yakanakisa diffuser kunyatsoita, iyo diffuser (yakasimba chimiro uye saizi) inofanirwa kugadzirwa zvinoenderana nekumisikidzwa kwechidimbu chimwe nechimwe, kuitira kuti ruzha rweruzha rwunogadzirwa nevharuvhu rifanane neirwo rwunogadzirwa neanodhindisa.

5.8 Shandisa A Low Noise Valve

Yakaderera ruzha vharafu maererano nemvura kuburikidza ne spool, chigaro che tortuous kuyerera nzira (yakawanda-channel, yakawanda-channel) zvishoma nezvishoma inononoka kudzivirira chero pfungwa munzira yekuyerera kuti ibudise supersonic.Kune marudzi akasiyana-siyana, akasiyana-siyana e-low-noise valve structure (kune hurongwa hunokosha hwekugadzirisa) hunoshandiswa pakusarudza.Kana ruzha rwusina kukura zvakanyanya, sarudza yakaderera ruzha sleeve valve, inogona kuderedza ruzha 10 ~ 20 DB, iyi ndiyo yakanyanya hupfumi yakaderera ruzha vharafu.