Namhlanje, umhleli uya kukwazisa indlela yokujongana neempazamo eziqhelekileyo zeevalvu zokulawula. Makhe sijonge!

Ngawaphi amalungu ekufuneka ajongwe xa kukho impazamo?

1. Udonga lwangaphakathi lomzimba wevalvu

Udonga lwangaphakathi lomzimba we-valve luhlala luchaphazeleka kwaye luhlanjululwe yi-medium xa iivalve ezilawulayo ziqeshwe kwi-high-pressure differential kunye ne-corrosive media setting, ngoko ke kubalulekile ukunyamekela ukuvavanya ukubola kwayo kunye nokumelana noxinzelelo.

2. Isihlalo sevalve

Umphezulu ongaphakathi womsonto okhusela isihlalo sevalve udlaka ngokukhawuleza xa ivelufa elawulayo isebenza, nto leyo ekhokelela ekubeni isitulo sevalve sikhululeke. Oku kungenxa yokungena kwesiphakathi. Xa uhlola, khumbula oku. Umphezulu wokutywina wesitulo sevalve kufuneka uhlolwe ukonakala ngelixa ivalve isebenza phantsi koxinzelelo olumandla.

3. Spool

Ivalve elawulayoicandelo elishukumayo xa lisebenza libizwa ngokuba yiundoqo wevalvu. Yeyona eyonakaliswe kakhulu ngamajelo eendaba. Ilungu ngalinye le-valve core kufuneka linxibe kunye nomhlwa ngokufanelekileyo ngexesha lokugcinwa. Kufuneka kuqatshelwe ukuba ukunxiba kwe-valve core (cavitation) kunzima ngakumbi xa ukuhlukana koxinzelelo kuninzi. Kuyimfuneko ukulungisa isiseko se-valve ukuba sonakaliswe kakhulu. Ngaphaya koko, kufuneka ukhumbule naziphi na izehlo ezithelekisekayo kwisiqu sevalvu kunye nakuphi na ukudityaniswa okuxekethileyo kunye nondoqo wevalvu.

4. Amakhonkco "O" kunye nezinye iigaskets

Nokuba iyaguga okanye iyaqhekeka.

5. PTFE ukupakisha, ukutywina igrisi

Ingaba iguga kwaye indawo yokukhwelana yonakele, kufuneka itshintshwe ukuba kuyimfuneko.

Ivalve elawulayo yenza ingxolo, kufuneka ndenze ntoni?

1. Ukuphelisa ingxolo ye-resonance

Amandla awazukwaleka de ivalufa elawulayo iveze, idala ingxolo ephezulu engaphezulu kwe-100 dB. Ezinye zinengxolo ephantsi kodwa iintshukumo ezinamandla, ezinye zinengxolo ephezulu kodwa zishukuma zibuthathaka, ngelixa ezinye zinengxolo kunye nokungcangcazela okukhulu.

Izandi ezinethowuni enye, eziqhele ukuba phakathi kwe-3000 kunye ne-7000 Hz, ziveliswa yile ngxolo. Ngokuqinisekileyo, ingxolo iya kuhamba ngokwayo ukuba i-resonance isusiwe.

2. Ukuphelisa ingxolo ye-cavitation

Isizathu esiphambili somsindo we-hydrodynamic yi-cavitation. I-turbulence yendawo eyomeleleyo kunye nesandi se-cavitation iveliswa yimpembelelo yesantya esiphezulu eyenzeka xa ama-bubbles ewa ngexesha le-cavitation.

Le ngxolo inoluhlu olubanzi lwamaza kunye nesandi esikhexisayo esisikhumbuza ulwelo oluqulathe iingqalutye kunye nesanti. Enye indlela esebenzayo yokulahla kunye nokunciphisa ingxolo kukunciphisa nokunciphisa i-cavitation.

3. Sebenzisa imibhobho eneendonga ezingqindilili

Enye inketho yokujongana nomzila wesandi kukusebenzisa imibhobho eneendonga ezinamandla. Ukusetyenziswa kwemibhobho eneendonga ezingqindilili kunokunciphisa ingxolo ngeedecibels ezi-0 ukusa kwezingama-20, ngoxa imibhobho eneendonga ezibhityileyo inokwandisa ingxolo ngeedecibels ezi-5. Ukuqina kwesiphumo sokunciphisa ingxolo, kokukhona udonga lombhobho luqina kwidayamitha yombhobho ofanayo kwaye ubukhulu becala lombhobho wobukhulu obufanayo bodonga.

Ngokomzekelo, isixa sokunciphisa ingxolo sinokuba -3.5, -2 (oko kukuthi, siphakanyiswe), 0, 3, kunye ne-6 xa ubukhulu bodonga lwe-DN200 umbhobho 6.25, 6.75, 8, 10, 12.5, 15, 18, 20 , kunye ne-21.5mm, ngokulandelanayo. 12, 13, 14, kunye ne-14.5 dB. Ngokwemvelo, iindleko zinyuka ngobunzima bodonga.

4. Sebenzisa imathiriyeli efunxa isandi

Le ikwayeyona ndlela idumileyo nesebenzayo yokuqhuba iindlela zesandi. Imibhobho inokusongwa ngezinto ezifunxa isandi emva kweevalvu kunye nemithombo yengxolo.

Kubalulekile ukukhumbula ukuba ingxolo ihamba imigama emide ngokuqukuqela kwamanzi, ngaloo ndlela isebenzisa imibhobho eneendonga ezishinyeneyo okanye ukusonga izinto ezifunxa isandi akuyi kuyiphelisa ngokupheleleyo ingxolo.

Ngenxa yexabiso layo eliphezulu, le ndlela ifaneleke kakhulu kwiimeko apho amanqanaba engxolo aphantsi kunye nobude bemibhobho bufutshane.

5.Series muffler

Ingxolo yeAerodynamic inokupheliswa ngokusebenzisa obu buchule. Inamandla okunciphisa ngokufanelekileyo inqanaba lengxolo elinxibelelene nomgangatho oqinileyo wokuthintelwa kunye nokuphelisa ingxolo ngaphakathi kulwelo. Ukuhamba kobunzima obukhulu okanye iindawo zomlinganiselo woxinzelelo oluphezulu ngaphambi nokulandela ivalve zifaneleke kakhulu kuqoqosho lwale ndlela kunye nokusebenza kakuhle.

Izithulisi ezifunxayo ezisemgceni ziyindlela esebenzayo yokunciphisa ingxolo. Nangona kunjalo, ukuthotywa kuthintelwe malunga ne-25 dB ngenxa yeendleko.

6. Ibhokisi yesandi

Sebenzisa iibhokisi ezingavakaliyo, izindlu kunye nezakhiwo ukwahlula imithombo yengxolo yangaphakathi kunye nokunciphisa ingxolo yangaphandle yokusingqongileyo ibe kuluhlu olwamkelekileyo.

7. Series throttling

Uchungechunge lwe-throttling approach lusetyenziswa xa uxinzelelo lwevalve elawulayo luphezulu kakhulu (△P/P1≥0.8). Oku kuthetha ukuba yonke i-drop drop pressure ihanjiswa phakathi kwevalve elawulayo kunye ne-fixed throttling element emva kwevalve. Ezona ndlela zingcono zokunciphisa ingxolo kukusebenzisa iipleyiti zokunciphisa ukuqukuqela, ii-diffusers, njl.

I-diffuser kufuneka iyilwe ngokuhambelana noyilo (isimo somzimba, ubungakanani) ukwenzela ukusebenza kakuhle kwe-diffuser.