Namuhla, umhleli uzokwethula indlela yokubhekana namaphutha avamile ama-valve okulawula. Ake sibheke!

Yiziphi izingxenye okufanele zihlolwe uma kwenzeka iphutha?

1. Udonga lwangaphakathi lomzimba wevalvu

Udonga lwangaphakathi lomzimba wevalvu luvame ukuthintwa futhi lugqwale yi-medium lapho amavalvu alawulayo esetshenziswa ezindaweni zokucindezela okuphezulu kanye nemidiya egqwalisayo, ngakho-ke kubalulekile ukunaka ukuhlola ukumelana kwayo nokugqwala kanye nengcindezi.

2. Isihlalo sevalvu

Ubuso bangaphakathi bentambo evikela isihlalo se-valve buqothuka ngokushesha lapho i-valve elawulayo isebenza, okuholela ekutheni isihlalo se-valve sibe sikhululeke kakhulu. Lokhu kungenxa yokungena kwe-medium. Uma uhlola, khumbula lokhu. Ubuso bokuvala isihlalo se-valve budinga ukuhlolwa ukuthi abukho yini ukonakala ngenkathi i-valve isebenza ngaphansi kokwehluka okukhulu kwengcindezi.

3. I-Spool

I-valve yokulawulaingxenye enyakazayo uma isebenza ibizwa ngokuthiumongo wevalvu. Yileyo imidiya eyonakele futhi yaguguleka kakhulu. Yonke ingxenye ye-valve core idinga ukuhlolwa kahle ukuguguleka kwayo kanye nokugqwala ngesikhathi sokulungiswa. Kufanele kuqashelwe ukuthi ukuguguleka kwe-valve core (cavitation) kuba kubi kakhulu uma umehluko wokucindezela umkhulu. Kuyadingeka ukulungisa i-valve core uma yonakele kakhulu. Ngaphezu kwalokho, kufanele uqaphele noma yiziphi izenzakalo ezifanayo esiqwini se-valve kanye nanoma yikuphi ukuxhumana okuxekethile ne-valve core.

4. Izindandatho “O” nezinye izingcezu zegesi

Kungakhathaliseki ukuthi kuyaguga noma kuyaqhekeka.

5. Ukupakisha kwe-PTFE, ukuvala amafutha

Kungakhathaliseki ukuthi iyaguga noma ngabe indawo yokuhlangana yonakele, kufanele ishintshwe uma kudingeka.

Ivalvu elawulayo yenza umsindo, kufanele ngenzeni?

1. Susa umsindo we-resonance

Amandla ngeke abekwe ngaphezulu kuze kube yilapho ivalvu elawulayo izwakala, idala umsindo omkhulu ongaphezu kuka-100 dB. Amanye anomsindo ophansi kodwa anokudlidliza okunamandla, amanye anomsindo omkhulu kodwa anokudlidliza okubuthakathaka, kanti amanye anomsindo kanye nokudlidliza okukhulu.

Imisindo yethoni eyodwa, ngokuvamile kumafrikhwensi aphakathi kuka-3000 no-7000 Hz, ikhiqizwa yilo msindo. Vele, umsindo uzozihambela wodwa uma umsindo ususwa.

2. Susa umsindo we-cavitation

Imbangela eyinhloko yomsindo we-hydrodynamic ukugoba. Ukuxokozela okukhulu kwendawo nomsindo wokugoba kukhiqizwa umthelela wesivinini esikhulu owenzeka lapho amabhamuza ewa ngesikhathi sokugoba.

Lo msindo unebanga elibanzi lemvamisa kanye nomsindo wokukhenceza okhumbuza uketshezi oluqukethe amatshe amancane nesihlabathi. Enye indlela ephumelelayo yokususa nokunciphisa umsindo ukunciphisa nokunciphisa ukucasuka.

3. Sebenzisa amapayipi anezindonga ezijiyile

Enye indlela yokubhekana nomzila womsindo ukusebenzisa amapayipi anezindonga eziqinile. Ukusetshenziswa kwamapayipi anezindonga ezijiyile kunganciphisa umsindo ngama-decibel angu-0 kuya kwangu-20, kuyilapho amapayipi anezindonga ezijiyile engandisa umsindo ngama-decibel angu-5. Uma umphumela wokunciphisa umsindo uqina, udonga lwepayipi olunobubanzi obufanayo bepayipi luba lukhulu futhi ububanzi bepayipi obufanayo bobukhulu bodonga bube bukhulu.

Isibonelo, inani lokunciphisa umsindo lingaba ngu--3.5, -2 (okungukuthi, liphakanyisiwe), 0, 3, kanye no-6 uma ubukhulu bodonga lwepayipi le-DN200 bungu-6.25, 6.75, 8, 10, 12.5, 15, 18, 20, kanye no-21.5mm, ngokulandelana. 12, 13, 14, kanye no-14.5 dB. Ngokwemvelo, izindleko ziyanda ngobukhulu bodonga.

4. Sebenzisa izinto ezithinta umsindo

Lena futhi indlela ethandwa kakhulu nephumelelayo yokucubungula izindlela zomsindo. Amapayipi angasongwa ngezinto ezimunca umsindo ngemuva kwamavalvu nemithombo yomsindo.

Kubalulekile ukukhumbula ukuthi umsindo uhamba amabanga amade ngokugeleza koketshezi, ngakho-ke ukusebenzisa amapayipi anezindonga ezijiyile noma ukusonga izinto ezimunca umsindo ngeke kuwuqede ngokuphelele umsindo.

Ngenxa yezindleko zayo eziphakeme, le ndlela ifaneleka kakhulu ezimweni lapho amazinga omsindo ephansi khona kanye nobude bamapayipi bufushane.

5. I-muffler yochungechunge

Umsindo we-aerodynamic ungasuswa kusetshenziswa le ndlela. Inamandla okunciphisa ngempumelelo izinga lomsindo elidluliselwa kungqimba oluqinile lwesithiyo futhi isuse umsindo ngaphakathi koketshezi. Izindawo ezinkulu zokugeleza kobuningi noma izindawo eziphansi kakhulu ngaphambi nangemva kwevalvu zilungele kakhulu ukonga nokusebenza kahle kwale ndlela.

Izithulisi ezimunca umsindo ziyindlela ephumelelayo yokunciphisa umsindo. Noma kunjalo, ukuncishiswa komsindo kuvame ukukhawulelwa ku-25 dB ngenxa yezindleko.

6. Ibhokisi elingangeni msindo

Sebenzisa amabhokisi angangeni msindo, izindlu nezakhiwo ukuze uhlukanise imithombo yomsindo wangaphakathi futhi unciphise umsindo wangaphandle wendawo ozungezile ube sebangeni elamukelekayo.

7. Ukujikijela kochungechunge

Indlela yochungechunge lwe-throttling isetshenziswa lapho ingcindezi ye-valve elawulayo iphezulu kakhulu (△P/P1≥0.8). Lokhu kusho ukuthi ukwehla kwengcindezi yonke kusatshalaliswa phakathi kwe-valve elawulayo kanye ne-throttling element ehleliwe ngemuva kwe-valve. Izindlela ezinhle kakhulu zokunciphisa umsindo ngokusebenzisa amapuleti okunciphisa ukugeleza anezimbobo, ama-diffuser, njll.

I-diffuser kumele iklanywe ngokuhambisana nomklamo (isimo somzimba, usayizi) ukuze i-diffuser isebenze kahle kakhulu.