okokuqala. Iluphi uhlobo lwevalvu yokuvala{1}i-valve efakwe kuyo indlela yesondo lesandla?
Okokuqala, kufanele sicacise umbuzo wokuthi hlobo luni-lokuvala ivalvu idivayisi yesandla efakwe kuyo. Isondo lesandla le-actuator kagesi ukucushwa kwalo okujwayelekile, futhi akukho mbuzo wokuthi lisethe isondo lesandla, ngakho-ke ingxabano isekutheni ivalvu yomoya idinga ukusetha indlela yesondo lesandla.
okwesibili. Iyini indima yomshini wesondo lesandla?
1. Lapho isignali yomthombo womoya noma isignali kagesi ihluleka, noma lapho izingxenye eziyinhloko ze-actuator (ezifana ne-diaphragm, intwasahlobo, uphawu, ukudlulisa, njll.) zonakalisiwe, ukusebenza okuzenzakalelayo kufanele kushintshwe ekusebenzeni okwenziwa ngesandla, futhi isondo lesandla lingasetshenziswa Umshini uyaqhubeka nokugcina umsebenzi wokulawula we-valve elawulayo.
2. Umshini wesondo lesandla ungasetshenziswa futhi njengesinqamuleli sokulawula ukushaywa kwevalvu. (Umsebenzi wokukhawulela)
3. I-handwheel mechanism ingathuthukisa ukuthembeka kokusebenza kwe-valve elawulayo. Uma i-bypass yengezwe ku-valve elawulayo, izindleko zokutshala izimali zikhulu, indawo inkulu, futhi izindleko ziphakeme uma izinga likhulu noma izinsimbi eziyigugu zisetshenziswa. Kubiza kakhulu{3}}ukusebenzisa indlela yesondo lesandla kungakhathaliseki ukuthi yimalini yokutshala imali noma indawo yaphansi.
okwesithathu. Ingabe i-valve yokuvala{1}idinga ukuhlonyiswa ngomshini wesondo lesandla?
Ukuthi i-valve-yovala ifakwe i-handwheel, ayikho impendulo enembile, ikakhulukazi ngenxa yokucabangela izimo zohlelo lokusebenza ezihlukene, kufanele kube-ubudlelwano bokuhwebelana.
1 Uma sibheka izidingo ze-HG/T20507-2014, igxile kakhulu ekuxhumekeni ukuze kuvinjwe ukuklanywa kwesondo lesandla ukuthi lingathikamezi ukwenziwa kwezenzo ezihlanganayo.
I-2SH/T3005-2016 ayicacisi ukuthi idinga ukusethwa, kodwa ibeka phambili izithiyo ezithile eziyisisekelo.
3 Ngokuvamile, ivalvu{1}}yokuvala ehlobene ne-interlock yokuphepha akufanele inikezwe indlela yesondo lesandla. Kwamanye ama-valve avaliwe{3}angabambi iqhaza ekuxhumekeni kokuphepha, ngokombono wokukhiqiza inqubo, ngokuya ngokubaluleka kokulawulwa kwenqubo, akukho ukudlula futhi ukwehluleka kwevalvu ngeke kubangele ukukhubazeka kokukhiqiza ngesikhathi esilinganiselwe esilawulekayo Okulandelayo, ungakwazi ukwengeza indlela yesondo lesandla. Kulokhu, uma kucatshangelwa ukuthi kungase kube nokuphathwa kabi kwabasebenzi ngesikhathi sokusebenza okuvamile, ukuvala ngesandla kwe-valve, njll., ungacabangela ukwengeza izinyathelo zokuphatha ezihambisanayo, njengokukhiya isondo lesandla noma ukususwa kwesondo lesandla.
