ZD ZD Self-balance Multistage Centrifugal Pumps
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1 ZD ZD Self-balace Multistage Cetrifugal Pumps 1. Geeral Descriptio The self-balace multistage cetrifugal pump developed idepedetly by our compay was revolutioized i its structure, has o eed of balace disc or drum for couterbalacig the axial force, ad offers safer ad more reliable operatio i trasferrig various fluids, particularly i deliverig high temperature fluid ad other fluids cotaiig gas ad solids uder large frequet chage of operatio coditio, without frequet displacemet of balace device, wear-ad-tear ad failure of mechaism, ad steam frictio which would take place i the traditioal cetrifugal pump. Adoptio of the pateted techologies for hi-pressure self-balace sectioal cetrifugal pump (Patet No.: ZL ) ad i-pressure multistage pump combied seal (Patet No.: ZL X) icreases more techical superiorities. This type of pump is widely used for deliverig water cotaiig up to 5% wt solids of grai size less tha 0.2 mm ad media similar to water i physical property i such applicatios as petrochemical medium trasfer the descalig of hot rolled steel, water ijectio of oilfield, crude oil trasfer, chemical product, boiler feed, mie draiage, coal miig, etc. 2. Structural features ZD Opposed impeller arragemet provides permaet axial hydraulic balace without balace disc or drum, ad the bearig set bears trasiet axial thrust ad residual axial force due to the machiig error of compoets ad the spiral seal, completely avoidig the shaft breakig ad other serious faults resultig from failure of the balace device due to fluid cotaiig solids or steam frictio at high-temperature. This makes the pump operate smoothly ad reliably uder ay extreme operatig coditios. The pump was desiged with high ad low pressure sectios ad provided with a ceter support for the pump body, splash-lubricated slidig bearigs to bear the radial force ad rollig bearigs or thrust disc to bear residual axial force. Multi-start spiral seal used for the iterstage sealig ad the separatio of high pressure sectio from low oe provides more reliable sealig effectiveess ad less wear-ad-tear, particularly i trasferrig fluid cotaiig solids, esurig log-term reliable operatio of the pump. The choice of combiatio type of the shaft seal depeds o the fluid to be trasferred. The combiatio of spiral seal with labyrith seal plus the recovery system of leaked fluid is suitable for fluid cotaiig solids which is ot harmful to eviromet; the combiatio of spiral seal ad high polymer filler for two-phase ad three-phase fluids (cotaiig solids ad/or gas) of selflubricity, (The high polymer filler is of o-lie maiteace); ad the combiatio of spiral seal ad mechaical seal for high-temperature ad corrosive fluids. 01
2 3. Descriptio of the selectio of pump 3.1 This catalogue shows the performace parameter of ZD medium-pressure ad high-pressure series self-balace pumps. The medium-pressure series pumps are maily used for itermediate head service such as petroleum ad chemical applicatios, ad the high-pressure for high head service such as metallurgy idustry ad water ijectio of oilfield. 3.2 If fluid to be delivered is less tha 80 ad relatively high outlet pressure is eeded, the ZD high-pressure series should be preferred. If the fluid is up to 200, corrosive, iflammable or explosive ad process coditios meet the data i the performace parameter tables, the ZD medium-pressure series should be preferred, ad the the high-pressure series should be selected whe the process coditios do t meet the data. 3.3 Customers may choose the ZD medium-pressure series or the ZD high-pressure oe accordig to the property of fluid ad seal requiremets before selectig cocrete model agaist the performace parameter tables. 3.4 The followig tables 1, 2 ad 3 give four (4) sorts of fluids, five (5) types of materials for wetted parts ad three (3) types of shaft seals respectively to select from. Table 1 Category of fluids Fluid Nor. temp. water Corrosive fluid Boiler water or high temp. fluid Crude oil ad clea oil Code S F G Y Table 2 Materials for wetted parts Material ZG ZG15Cr12 ZG07Cr19Ni9 ZG07Cr19Ni11Mo2 Duplex phase steel Code I II III IV V Table 3 Type of shaft seals Type Spiral seal plus labyrith seal Spiral seal plus high polymer filler Spiral seal plus mechaical seal Sigle faced Dual faced Bellows Code (No code) T J S B 3.5 I case that the customer asks us to select the model of pump for him, he should state the ame of fluid, chemical compositio, physical property, process coditios,electrical utility, etc. 3.6 The selectio of product ad service should be i accordace with the scope of supply ad service herei. 4. Scope of desig, supply ad service 4.1 Scope of desig (to be supplied accordig to cotract) Pump system, pump house equipmet arragemet ad costructio, high/low voltage electrical cotrol system, other system-related equipmet 02
3 4.2 Supply scope of pump package ad its system (to be supplied accordig to cotract) Pump package, high/low pressure water supply system, high/low pressure valve set system, high-pressure accumulator system, electrical cotrol system for the whole pump package, ad other associated equipmet. 4.3 Scope of service Direct the selectio of pump ad its system, supply techical documets required for the pump ad its system, trai operator ad servicema for customers, ad supervise or carry out the istallatio ad commissioig of the pump ad it system accordig to cotract. 5. The explaatio of pump model umber There are pump model umber ad pump package model umber for the self-balace cetrifugal pump Example 1 Model umber of pump: ZDF B- ZDF: Medium-pressure Aticorrosive self-balace cetrifu gal pump 250: Rated pump capacity, 250m 3 /h 135: ead of idividual impeller, 135m 8: Number of impeller, 8 B : Type of shaft seal, B meas the combiatio of spiral seal ad bellows-type mechaical seal : Code of material for wetted parts, IV meas ZG07Cr19Ni11Mo2. Model umber of pump package: ZDFS Z- ZDFS: Medium-pressure Aticorrosive self-balace pump package 260: Workig capacity of pump, 260m 3 /h 112: ead at workig capacity, 1120m Z: icreaser, (Y: speed-regulatig hydrodyamic clutch), (No sig here meas without speed i creaser or hydrodyamic clutch) : Code of material for wetted parts, meas ZG15Cr12. Example 2 Model umber of pump: ZDS J- ZDS: igh-pressure self-balace cetrifugal pump 350: Rated pump capacity, 350m 3 /h 200: ead of pump, 2000m J: Type of shaft seal, J meas the combiatio of spiral ad sigle faced mechaical seal : Code of material for wetted parts, meas ZG07Cr19Ni. Model umber of pump package: ZDSS Y- ZDSS: igh-pressure self-balace pump package 360: Workig capacity of pump, 360m 3 /h 220: ead at workig capacity, 2200m Y: -regulatig hydrodyamic clutch icreaser, (Z: speed icreaser), (No sig here meas without hydrodyamic clutch or speed icreaser) : Code of material for wetted parted, II meas ZG15Cr12. 03
4 6 Performace Parameter of ZD Medium-pressure Pumps ead (r/mi) NPSR 04
5 ead (r/mi) NPSR 05
6 ead (r/mi) NPSR 06
7 ead (r/mi) NPSR 07
8 ead (r/mi) NPSR 08
9 ead (r/mi) NPSR 09
10 ead (r/mi) NPSR 10
11 7. Performace Parameter of ZD S F G AND Y igh-pressure Pumps ead (r/mi) NPSR 11
12 ead (r/mi) NPSR
13 NPSR (r/mi) ead
14 NPSR (r/mi) ead
15 NPSR (r/mi) ead
16 NPSR (r/mi) ead
17 8.Sectioal Drawig of Pump 17
18 9. Outlie Drawig of Pump Package The outlie drawig shows the basic cofiguratio of the pump package. Ay device beyod the diagrammatic pump package should be specified i a cotract ad a techical agreemet, if required. 18
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20 Attachmet: Datasheet of self-balace cetrifugal pump CONGING PUMP INDUSTRY CO. LTD. CONTRACT NO.: NO. REUIRED: PUMP MODEL: PUMP PACKAGE NO.: TYPE: MULTISTAGE CENTRIFUGAL PUMP 1 OPERATING CONDITION SELF-BALANCE CENTRIFUGAL PUMP DATASEET PAGE NO. OF STANDARD AND SPECIFICATIONS: PURCASER: END USER: PROJECT: ITEM NO.: EUIPMENT: PERFORMANCE 2 FLUID: CAPACITY: RATED m 3 /h MAX. m 3 /h 3 PUMPING TEMP.: NOR MAX EAD: m MIN. FLOW FLOW MAX. FLOW 4 NOR. TEMP.: kg/m3 NPSR: m PUMP SPEED: r/mi 5 VAP. NOR. TEMP.: MPa MOTOR PWR: kw ROTN (VIEWED FROM DE): CW CCW 6 NOR. TEMP.: mpa.s INTERM. TRANS. UNIT: YDRODYN. CLUTC SPEED INCR. 7 SOLIDS CONT. %Wt MAX. SIZE mm TYPE: CAPACITY : MIN NOR MAX INLET PRES.: NOR. MPa MAX. MPa OUTLET PRES.: NOR. MPa MAX. MPa DIFF. PRES.: MPa EAD m NPSA m OPERATION: CONT. INTMT FLUID PROPS: FLAM. TOXIC CORR. LOC.: INDOOR OUTDOOR TROPICAL CLASS AREA: DRIVER: MOTOR TURBINE ELECTRICAL POWER SUPPLY V z P AUX. SUPPLY V z P MOTOR: EXPL.-PROOF PROT. INSUL. CONTR.: EXPL.-PROOF PROT. INSUL. SERVICE FLUSING UENCING COOLING ISOLATING MATERIAL TYPE OF CPLG: FLEX. PIN MEMBRANE TOOT SAFT SEAL: SPIRAL LABYRINT SPIRAL FILLER SPIRAL MEC. SEAL CASING SUPPORT: CENTERLINE FOOT WETTED PARTS: ZaG ZG15Cr12 ZG07Cr19Ni9 ZG07Cr19Ni11Mo2 DUPLEX STEEL SAFT: 35CrMoV 0Cr17Ni4Cu4Nb; WEAR RING: 38CrMoAl 1Cr17Ni2 DUPLEX STEEL MATCING: WETTED PARTS OF MATERIAL I SOULD BE USED WIT SAFT AND WEAR RING OF MATERIAL I; WETTED PARTS OF MATERIAL II OR III OR IV WIT SAFT AND WEAR RING OF MATERIAL II; AND WETTED PARTS OF MATERIAL V WIT SAFT OF MATERIAL II AND WEAR RING OF V. MATCING OF MATERIALS MAY BE ACCORDING TO INDIVIDUAL CUSTOMER S REUIREMENTS. CEMICAL COMPOSITION & PYSICAL PROPERTIES OF FLUID: MEC. SEAL DETECTION & CONTROL MOTOR BEARING RADIAL: SLID ROLLING AXIAL: SLID ROLLING COOLING: AIR WATER LUBRICATION.: SPLAS FORC SINGLE OIL STATION COMB. OIL STATION TYPE: POWER: KW SPEED: r/mi VOLT.: V z P EXPL.-PROOF: PROT.: INSUL.: COOLING: EATER: YES NO POWER: W TY.: DE BEARING NDE BEARING TRUST BEARING TEMP. INLET CASING LUBRICATION LINE MOTOR BEARING WINDING COOLING WATER INLET OUTLET BALANCE PIPE PRES. LUBE COOLING WATER FILTER DIFF PRES. SYSTEM CONTROL & SOFTWARE ONLY PRIMARY SIGNAL OUTPUT, NOT CONTROL SINGLE FACED DUAL FACED SPRING MET. BELLOWS BUILT-IN BALANCED UNBALANCED SELF-FLUS. EXT. FLUS. UENC. NO UENC 30 20
21
22 Referece List of Self-balacig Multistage cetrifugal pumps ZD (S, F, G ad Y)
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