Vertical Multi-Stage Centrifugal Pumps

Vertical Multi-Stage Centrifugal Pumps

Model:BLT

Slijedi o Vertical Multi-Stage Centrifugalni Pumpe povezane Blt, nadam se da će vam pomoći da bolje razumiju Vertikalni Multi-Stage centrifugalne pumpe.

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High-efficiency standard motor, Japan NSK bearings and cold-rolled 50ww800 silicon steel sheet made the pump high efficiency, low noise and maintenance-free. Totally enclosed shaft seal, IP55 protection grade, F class insulation grade, the special "double-lock" drive end bearing made the pump withstand higher inlet pressure.
Balanced & container-type shaft seal with all the parts assembled together, no axial rotating to prevent the shaft and rubber parts from wearing, with the characteristics of rapid changing, easy installation and safe operation.Dynamic sealing is made of cemented carbide materials and the static sealing is fluorine rubber material which make the mechanical seal to be high temperature resistance, long service life, easy changing and other significant characteristics.
Being produced by the most advanced international laser welding technology,, no eliminate welding, ensure the high intensity and efficiency. The processing technology: precision casting, CNC lathe, CNC machining center, the modern advanced technology such as the laser welding technique and processing equipment.2T-4T is spot welding,16T and above is laser welding.
Ugrađeni plivajući zaptivni prsten kućišta pumpe može smanjiti unutrašnje curenje nastalo diferencijalnim tlakom i spriječiti potrošnju energije kada se tekućina vraća u tijelo pumpe.
The pump core parts are designed to be multilevel interlocking, fastening nut locked, component system interlock assembly industry, to minimize the gap between the impeller per level, improve the efficiency of the impeller water conservancy, and ensure the stability, reliablity and efficiency of the pump core components.
Hladno istisnuta kuglasta osovina sa dobrim kvalitetom površine, visokom preciznošću obrade, istovremeno poboljšavajući sveobuhvatne mehaničke osobine vratila i pouzdanost pumpe.
Uputstvo za model

Overview Of The Product

Centrifugalna pumpa od nehrđajućeg čelika serije BL (T) (kasnije nazvana pumpa) ima karakteristike visoke učinkovitosti, niske razine buke, stalnog rada, itd. kompaktna cjelina, jednostavna instalacija, praktičan rad i održavanje.

Application Limits
- Ž
Srednja temperatura: normalan tip: 0 68 ~ 68 „: topla voda: 0 120 ~ 120 ƒ

- Ž
Ambient temperature:+40℃ ,

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Maksimalni ambijentalni pritisak: 1.0MPa,

- Ž
Advisable to use motor of higher power in case that the density or viscosity of medium is above that of water.

- Ž
PH: 5 do 8
Applications Fields

Water supply

BL

BLT

Filtracija i transfer na vodovodu

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Distribution from waterworks

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Podizanje pritiska u mreži

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Pressure boosting in high-rise buildins,hotels,etc.

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Povišenje pritiska za industrijsku vodu

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Industrija



Pressure boosting



Process water systems

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Sistemi za pranje i čišćenje

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Vehicle washing tunnels

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Fire fighting systems

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Liquid transfer



Cooling and air-conditioning systems(refrigerants)

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Boiler feed and condensate systems

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Machine tools(cooling lubricants)

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Aquafarming

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Transfer



Oil and alcohol

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Glikol i rashladna sredstva

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Obrada vode



Ultra-filtration systems

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Sistemi reverzne osmoze

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Omekšavanje, jonizujuće, demineralizacioni sistemi

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Sistemi destilacije

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Separatori

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Kupanje za kupanje

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navodnjavanje



Field irrigation(flooding)

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Sprinkler irrigation

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Drip-feed irrigation

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Certificate

Electric Motor
- Ž
Potpuno zatvoreni i ventilirajući dvopolni standardni motor

- Ž
Protection clsas: IP55

- Ž
Klasa izolacije: F

- Ž
Standard voltage Single phase 220V-50Hz Three phase:380/400V-50Hz

Standard energetske efikasnosti (IEC60034)

Calculation Of minimum Inlet Pressure

Ako je pritisak u pumpi niži od pritiska pare medija, doći će do kavitacije, što će utjecati na performanse pumpe. Da bi se izbjegla kavitacija i osigurao minimalni tlak na ulazu pumpe, maksimalna usisna visina treba izračunati na sljedeći način:

H = Pbx10.2-NPSH-Hf-hv-Hs

Pb: Atmospheric pressure, bar (In close pipeline system, it can be considered as the system pressure );
NPSH: Net positive suction head, m (Value at maximum flow of Q-NPSH curve);
Hf: Suction pipe line loss (Value at maximum flow of corresponding pipeline);
Hv: Medium vapour pressure, m (Medium vapour pressure at corresponding temperature, the default medium is water, as shown in figure4 on the right );
Hs: Safety margin, m, general value is 0.5.
Rezultat proračuna: ako je H pozitivan, pumpa je instalirana na usisni način, inače je ugrađena na donji način.

Note: It is not necessary to do above calculation under general conditions. Only when we use pump in the following situations do we need to calculate the H:
1. Medium temperature is high;
2. brzina protoka je veća od nominalne vrijednosti;
3.Suction glava je velika ili ulazni cjevovod je dug;
4.Sistemski pritisak je mali;
5.Ulazno stanje je loše.


Selection Of Pumps

Izbor pumpi treba da se zasniva na:
Radna tačka pumpe.
Dimensional data such as pressure loss as aresult of height differences,friction loss in the pipework,
Pump efficiency etc.
Materijali pumpe
Pump connections
Najčešće korišćene tabele za konfiguraciju mehaničkog zaptivača

1. Točka rada pumpe:

Iz radne tačke moguće je izabrati pumpu na bazi krive karte prikazane u "performansama / tehničkim" oznakama. podaci.

2. Dimensional data:

When sizing a pump the following must be taken into accounting: •Required flow and pressure at the draw-off point. •Pressure loss as a result of height differences. •Friction loss in the pipework(Hf) (Refer to Fig.1) It may. •Best efficiency at the estimated duty point. •NPSH value. •For calculation of the NPSH value, see corresponding curves chart.

3. Pump efficiency:

Before determining the best efficiency point, the operation pattern of the pump needs to be identified. If the pump expected to operate as the same duty point, then select a BL pump which is operating at a duty point corresponding with the best efficiency of the pump.
As the pump is sized on the basis of the highest possible flow, it is important always to have the duty point to the right on the efficiency curve(eta) in order to keep efficiency high when the flow drops.

4. Materijal pumpe:

Selection of pump connection depend on the rated pressure and pipe work. the pump offer a wide range of ftexible connection such as:

5. Uobičajene tablice s konfiguracijom mehaničkog brtvljenja

Application Field Vrsta brtve vratila Materijal brtve vratila  
Normalno Poseban 1 2 3
4
5
Type key
Rotirajući dio Kod Stationary part Kod Elastomeri Kod Kompresiona opruga Collor Kod
0 „do + 90â čiste vode   â— Grafit A SiC S FPM F SUS304 C ASFC
0 „do + 90â čiste vode â—   toalet W Grafit A FPM F SUS304 C WAFC
+ 90 „do + 120â otpornost na koroziju â—   SiC S SiC S EPDM E SUS304 C SSEC
do 0 „   â— toalet W toalet W EPDM E SUS304 C WWEC
Tip mehaničke brtve Model pumpe d1 d2 h
NJK BL (T) 2/4 12 12 55
BL(T)8/12/16/20 16 16 57.5
BL (T) 32/45/60/90 22 22 72
NDA BW(J)2/4 12.7 16 32
BW(J)8/16 17.4 20 33.5


Maximum Work Pressure

Model

Curve No.

BL(T)2,4

2

BL (T) 8,12,16,20

3

BL(T)32-2-2~BL(T)32-7

1

BL (T) 32-8-2 ~ BL (T) 32-12

4

BL (T) 32-13 ~ BL (T) 32-15-2

5

BL (T) 45-2-2 ~ BL (T) 45-6

1

BL(T)45-7-2~BL(T)45-9

4

BL(T)45-10-2~BL(T)45-13-2

5

BL(T)64-2-2~BL(T)64-5-2

1

BL (T) 64-5-1 ~ BL (T) 64-8

4

BL(T)90-2-2~BL(T)90-4-2

1

BL (T) 90-4 ~ BL (T) 90-6

4

BL (T) 120i150

6


Granice pritiska i temperature prikazane su na slici 4, tlak i temperatura moraju biti prikazani na slici. 4.

Maximum Ambient Temperature

Kada pumpa radi na mjestu gdje je temperatura okoline veća od 40 „ili je visina veća od 1000m, izlazna snaga motora P2 će se smanjiti zbog slabog hlađenja uzrokovanog niskom gustoćom zraka. treba biti opremljen motorom velike snage.

Performance Range
Product Range

Performance Curve - BL(T)2

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Krivulja izvedbe - BL (T) 4

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Krivulja performansi - BL (T) 8

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Krivulja performansi - BL (T) 12

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Performance Curve - BL(T)16

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Performance Curve - BL(T)20

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Performance Curve - BL(T)32

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Krivulja izvedbe - BL (T) 45

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Performance Curve - BL(T)64

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Standardna prirubnica PN25-40 / DN100, na upit.

Performance Curve - BL(T)90

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Standardna prirubnica PN25-40 / DN100, na upit.

Krivulja performansi - BL (T) 120

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Performance Curve - BL(T)150

Preporučuje se da se koristi u rasponu dizanja.

Tabela performansi

Komponente Materijali

Pakovanje Veličine Težina

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