Ulwazi olusisiseko lweempompo zamachiza

Indlela yokukhetha impompo efanelekileyo kakhulu ibisoloko iyinto exhalabisa kakhulu abantu. Akukho lula kuwe ukuba ukhethe ilungeloimpompo yeekhemikhalikuba zonke ezi zinto zibalulekile: isiganeko, imidiya, imathiriyeli, njl.

Silapha isingeniso esicacileyo seentlobo ezahlukeneyo zeempompo, ukwenzela ukuba unike inkcazo ecacileyo yoluphi uhlobo lwempompo yeekhemikhali omele ukhethe.

Ukukhetha impompo, kufuneka siqale siqonde kwaye siqonde imigaqo yokukhetha umpompo wamachiza. 

1. Uhlobo lwempompo ekhethiweyo kunye nokusebenza ngokuhambelana nesixhoboukuhamba, intloko, uxinzelelo, ukushisa, ukuhamba kwe-cavitation, ukufunxa kunye nezinye iiparameters zenkqubo.

2. Kufuneka icacise iimfuno zeempawu eziphakathi.

Ekuthuthweni kwempompo yemidiya enokutsha, enetyhefu okanye ebiza imali eninzi, ifuna itywina elithembekileyo okanye ukusetyenziswa kweempompo ezingavuziyo, ezifanaimpompo yokuqhuba magnetic,Impompo uvalo,impompo yekhaka.

3. Usasazo lwempompo yeendaba ezonakalisayo, ukuthembeka koomatshini, ingxolo ephantsi, ukungcangcazela.

4. Uqoqosho kufuneka luthathele ingqalelo iindleko zezixhobo, iindleko zokusebenza, ukugcinwa kunye nolawulo lweendleko eziphantsi kakhulu.

5. Izihlandlo eziqhelekileyo, ukhetho lwempompo yeekhemikhali:

(1) Impompo centrifugalngesantya esiphezulu, ubungakanani obuncinci, ubunzima bokukhanya, ukusebenza kakuhle, ukuhamba okukhulu, isakhiwo esilula, akukho pulsation ye-infusion, ukusebenza okuzinzileyo, ukusebenza okulula kunye nokugcinwa lula kunye nokunye.

(2) Kukho iimfuno zokulinganisa, ukhetho lwempompo yokulinganisa.

(3) Iimfuno zentloko ziphezulu kakhulu, ukuhamba kuncinci kwaye akukho nto ifanelekileyo yempompo yemoto ye-centrifugal ephakanyisiweyo ingasetyenziswa, ipompo yokubuyisela ekhethiweyo, njengeemfuno ze-cavitation aziphezulu nazo zingasebenzisa impompo ye-vortex.

(4) Intloko iphantsi kakhulu, ukuhamba okukhulu, ukhetho lwempompo ye-axial kunye nempompo edibeneyo.

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(6) Umxholo wegesi ophakathi kwe-75%, izinga lokuhamba lincinci kwaye i-viscosity ingaphantsi kwe-37.4mm2 / s, ukhetho lwepompo ye-vortex.

Ukuqala rhoqo okanyeimpompo yokunkcenkceshelaiimeko eziphazamisayo, kufuneka asebenzise self-priming ukusebenza impompo, ezifanaimpompo ye-centrifugal yokuzenzela,impompo ye-vortex yokuzenzela, i-pneumatic (yombane) impompo ezinikeleyo.

Ukukhangela iindawo zokuhambisa kusetyenziswa ukhetho lwempompo yezinto ezinganyangekiyo kwi-corrosion esekelwe kwinkqubo kufuneka isekelwe kunikezelo lwamanzi kunye neemfuno zokuhambisa amanzi, ukusuka kwiinkalo ezintlanu eziza kuqwalaselwa. 

1. Ukuhamba kungenye yedatha ebalulekileyo yokusebenza kwempompo, ihambelana ngokuthe ngqo nomthamo wokuvelisa kunye nokuhanjiswa kwamandla kwesixhobo sonke. Njengoyilo lwenkqubo yoYilo lweZiko lunokubala impompo eqhelekileyo, ubuncinci, ubuninzi beentlobo ezintathu zetrafikhi. Khetha umpompo, ukuhamba okuphezulu njengesiseko, ngokuqwalasela ukuhamba okuqhelekileyo, ngokungabikho kokuhamba okuphezulu, ngokuqhelekileyo kunqweneleka amaxesha angama-1.1 okuhamba okuqhelekileyo njengokuhamba okuphezulu.

2. Inkqubo yesixhobo iyadingeka ukuphakamisa ipompo enye idatha ebalulekileyo yokusebenza, ukusetyenziswa ngokubanzi kwe-amplification 5% -10% margin ukuya entloko emva kokukhethwa.

3. Iipropati zolwelo, kubandakanywa igama eliphakathi kolwelo, iipropati ezibonakalayo, iipropati zeekhemikhali kunye nezinye iimpawu, ezibhekiselele kwintloko yesistim, ukubalwa kwe-NPS esebenzayo kunye nohlobo olufanelekileyo lwempompo, ukhetho lwemathiriyeli yempompo kunye nokusebenzisa olo hlobo lohlobo lwe-shaft seal.

4. Imeko yolungiselelo lwemibhobho yesixokelelwano sofakelo ibhekisa kumphakamo wokutyisa ulwelo, umgama wokuthumela ulwelo, ubuncinci benqanaba lolwelo kwicala lokufunxa, ubuninzi benqanaba lolwelo lwecala lokukhupha, njl. njl., kunye neenkcukacha. , ubude, izixhobo, kunye nokunye, ukwenzela ukuba uqhubeke nokubala kwentloko ye-comb kunye ne-NPSH isheke.

5. Ukumiselwa kweemeko zokusebenza, ezifana nokusebenza kolwelo T ohluthisiweyo woxinzelelo lomphunga, uxinzelelo lwecala lokufunxa (absolute), ukukhupha uxinzelelo lwenqanawa yecala, ukuphakama, ukusebenza kobushushu be-ambient yi-gap okanye eqhubekayo, nokuba indawo yempompo igxininisekile okanye iyashukunyiswa. Zisisiseko esibalulekileyo sokukhetha. Iimathiriyeli ezifana nempompo yentsimbi engatyiwa ngumhlwa ye-AFB, i-CQF yobunjineli yeplastiki yempompo yokuqhuba imagnethi.

Ukuhanjiswa kweengqungquthela eziqinileyo eziqulethe imidiya, ukusetyenziswa kwamacandelo e-convective afuna izinto ezinqabileyo zokunxiba, ukuba kuyimfuneko, ukutywinwa kwe-shaft nge-rinse ecocekileyo yamanzi.

Ukulungiswa kwemibhobho yeepompo zamachiza

Kuyilo lombhobho woyilo, kufuneka uqaphele oku kulandelayo:

A. Ukhetho olunengqiqo lobubanzi bombhobho, ububanzi bombhobho, kwinqanaba lokuhamba okufanayo, isantya sokuhamba sincinci, ilahleko yokuchasana incinci, kodwa ixabiso liphezulu, ububanzi bombhobho buncinci, luya kukhokelela ekunyuseni okubukhali kwilahleko yokuchasana. , intloko yempompo iyanda Ngokunyuka kwamandla, iindleko kunye neendleko zokusebenza ziye zanda. Ngoko kufuneka kuthathelwe ingqalelo kwimbono yobugcisa kunye nezoqoqosho.

B. Umbhobho wokukhupha kunye nezixhobo zayo kufuneka zikwazi ukukhumbula uxinzelelo oluphezulu.

C. uyilo lombhobho kufuneka lucwangciswe ngokuthe tye kangangoko kunokwenzeka ukunciphisa izixhobo zofakelo lwemibhobho kunye nokunciphisa ubude bombhobho kufuneka ujikwe xa iradiyasi yokugoba yedayamitha yengqiniba yombhobho kufuneka ibe ngama-3 ukuya ku-5 amaxesha eengile kangangoko kunokwenzeka 90 Lt; 0 & gt; C.

D. Icala lokukhutshwa kwempompo kufuneka lixhotyiswe ngeevalve (ibhola okanye i-valve yeglobhu, njl. njl.) kunye ne-valve yokukhangela. Ivalve isetyenziselwa ukulungelelanisa indawo yokusebenza yempompo. Ivalve yokukhangela ikhusela umpompo ekubuyiseleni umva xa ulwelo lubuyela umva kwaye luthintela impompo ekubetheni isando samanzi. (Xa i-backflow yolwelo, iya kuba noxinzelelo olukhulu olujikelezayo, umonakalo wempompo).