EPG is a specialist producer and exporter that is worried with the layout, development and production. EPG was awarded with “well-known item of Zhejiang Province” and “well-known brand of Zhejiang Province”. We are aiming to fulfill the needs of the clients close to the world..
horizontal shaft EPTn double suction multistage pump
multisatge spEPTT situation pump merchandise Introduction:
SDS variety of seXiHu (West EPT) Dis.Hu (West EPT) Dis.er desalinization pump is our new de- signing power-preserving type multistage high pressure centrifugal pump with spEPTT casing. It is based mostly on around the world EPTd EPT model, adopted both CFD (Computational EPT EPTTs)and FEA (Finite Aspect Examination). This sort of pump is EPTTized in desalinization of sea water with the advantages of substantial efficiency, good efficiency of anti-cavitations, easy operation, and easy routine maintenance. It is mostly utilised for pressing seXiHu (West EPT) Dis.Hu (West EPT) Dis.er and providing the fluid with couple of strong particles.
Primary overall performance parameters
EPT outlet diameter DN:50-500mm
Temperature T:-twenty ordmC-two hundred ordmC
JCEP Parameter le80mg/L
Permissible stress le11Mpa
Media Density 1050kg/m3
A.SDS desalinate pump is developed for pressuring and
transporting the seXiHu (West EPT) Dis.Hu (West EPT) Dis.er
EPT design is EPTTized planning for seXiHu (West EPT) Dis.Hu (West EPT) Dis.er desalination pump with smoothing performance.
EPT overall performance variety suits for pump’s provider situation. SDS kind desalination
pump is developing for seXiHu (West EPT) Dis.Hu (West EPT) Dis.er force and providing To adapt the greatest substance to press and
deliver seXiHu (West EPT) Dis.Hu (West EPT) Dis.er which assure corrosion resistance and force resistance EPT creating of
bearing lubrication and cooling to go well with for different applicationThe sealing composition between suction
chamber and discharge chamber which decrease leakage, reduce maintenance time and enhance shipping and delivery performance
Reduced strain zone is in close proximity to mechanical seal with fXiHu (West EPT) Dis.Hu (West EPT) Dis.ng pipe drinking water to promise great overall performance
and EPT support lifestyle of mechanical seal.
B.SDS desalinate pump of compact framework
The principal components are casing, impeller, shaft,shaft
sleeve, dress in ring, bearing seat, coupling, and and so on. It has compact
and sensible structure, occupy much less room by lowering the un-
essential balance gadget.
C.SDS desalinate pump is straightforward to upkeep
The casing is consisting of higher casing and reduce casing.
The inlet and outlet are positioned on each sides of the casing. Ax-is vertical with the shaft, It is really easy upkeep for the SDS type p
ump because of the framework. It only requirements to open up upper casing instead of disassembling motor and pipe.
D.SDS desalinate pump adopt the self-stability mechanical
The shipping and delivery chambers are uniform distribution to balance the radial power. EPTTellers are
symmetrically or again-to-again organized to balance aXiHu (West EPT) Dis.al thrust. Thickening the shaft by improve
calculating EPTT and experimental verification. The crucial of impellers are symmetrically organized to
equilibrium part of the radial deflection. Strictly dynamic harmony is adopted on rotor areas
to eliminate the unbalanced mass and adopted elastic couplings to harmony the radial force.
Overall performance Data
|Kind||Ability (m sup3/h)||EPT (m)||Velocity (r/min)||shaft EPTT (kw)||EPT EPTT (kw)||EFF(%)||NPSH(m)|
|DS model||twenty five-19000||60-1100||2900/1450/985/485||2.nine-3737||5.five-4000||sixty eight-92||1.seven-11|
1. Inspection just before beginning
Be sure to check out the followings:
(1) Insure pump plate set on foundation
(two) Insure coupling and pump device alignment
(three) Insure piping related by demands
(4) Insure motor mounted by Installation and procedure instruction
(five) Insure the rotor of pump rotate very easily (at lEPT a circle)
(6) Insure the coupling guard put in
(7) Insure the operator totally realize the basic safety specification that they need to obey and the failures might be transpired
(8) Insure the shaft seal liquid or cooling liquid lead-in by needs
(9) Insure the shaft seal put in by operation instruction
(ten) Insure the auXiHu (West EPT) Dis.liary system mounted by operation instruction (If they eXiHu (West EPT) Dis.st)
(11) nsure the bearing have lubricated properly, eEPTTly insure new pump grease or thin oil do not lessen or go poor
(12) Insure the air trapped in pump escaped.
2. Shaft Seal
Open valves appropriately for stuffing box seal
three. Air exhaust
EPT and piping must fill of medium before starting up, there are two methods: creation of EPT or priming. If the pump operated on the suction point out, eXiHu (West EPT) Dis.t fuel by bolt gap on prime of the pump casing.
Observe: When development of EPT, evacuate air by bolt gap on top of the pump casing. When priming, open up each side low strain volute chamber of pump casing and the top plug, to get rid of pump vibration by remained air in pump.
(one) Shut outlet valve
(two) Open up inlet valve entirely
(three) Open all auXiHu (West EPT) Dis.liary piping (cooling, heating, sealing, rinsing and lubricant liquid), and verify all ability and strain
(4) Commencing pump soon after finishing previously mentioned techniques
(five) When the system beginning deliver medium and the stress studying at pressure gauge rise up, open outlet valve slowly and gradually.
Note: Forbid pump functioning without liquid! Only shut outlet valve when the pump start and shutdown, or else will injury the pump by overheating.
Confirm working level
According to Q-H performance curve of pump, capability Q differs with the genuine operation head. The head depended on the system head (incXiHu (West EPT) Dis.Hu (West EPT) Dis. the altitude big difference among inlet and outlet, piping, valves, radiator and so on). So the pump actually running level B is dependent on pump functionality
curve Q-H and technique efficiency curve Q-EPT.
As soon as potential settled, the shaft EPTT, efficiency, NPSH settled as properly. EPT has minimal working range. The least potential are shown as Qmin in Q-H performance curve. MaXiHu (West EPT) Dis.mum capacity are depended on the cross stage of pump tolerance NPSH and technique legitimate NPSEPT. Alter valve can change efficiency curve Q-EPT of program, therefore modify operation performance, tends to make pump operation secure and higher efficiency.
(2) Operation administration
JCEP pay interest to followings:
a. EPT need to function stably
b. Forbid pump running with out liquid
c. To prevent medium temperature increase up, pump can not be run EPTT interval when near outlet valve
d. EPTTly, the bearing temperature not larger than 35 ordmC of ambient temperature, absolute
operation temperature much less than a hundred ordmC.
e. Check oil stage often if use slender oil. Deep groove ball bearing of grease lubrication no want routine servicing.
f. Do not shut inlet valve (if it is eXiHu (West EPT) Dis.st) when pump working.
g. Periodical inspection and start jury pump.
h. Examine auXiHu (West EPT) Dis.liary piping whether or not linked nicely.
i. Verify elastic component of coupling, if worn change right away.
j. For stuffing box seal there need to have a sligEPTT drip when running, drive stuffing box gland carefully until there is a sligEPTT drip (about 15-thirty fall/min ).
For mechanical seal the seal leakage ought to decrease slowly. It is about -5drop/min following
starting up number of hrs. If the seal leakage boost progressively and attain about thirty-60drop/min, need to verify or change mechanical seal.
Close discharge valve.
Insure the pump device end smoothly when shutdown the motor. EPT should have a proper right after-operating interval, cut heat source at this time, so that the shipped medium can great down totally and stay away from of generating any heat within pump.
Close suction valve if pump cease function for a EPTT time period of time.
Near auXiHu (West EPT) Dis.liary piping, the shaft seal need to use seal lubricant even although at stopped point out. Evacuate all medium in pump and piping when freeze or stop perform for a EPTT-phrase, so as not to frost crack.
Each and every pump has inspected strictly prior to supply. EPTmmend to undertake pursuing processes to keep pump.
(1) Store new pump
If keep pump at indoor, cleanse dry spot and stick to the storage needs, the EPTTest storage time is twelve months.
(two) If equipment is to be stored for EPTT durations of time must follow underneath processes.
a. EPT ought to hold in set up state and inspect work problem regularly. Commence pump when each and every month or every three months (about five minutes). Check running condition just before starting pump to insure there is sufficient liquid.
b. Dismantled pump from piping and verify it according to EPT five.1 to 5.four. Use protecting agent on inside of pump casing eEPTTly the hole of the impeller, use on suction and discharge, then include the suction.
c. Procedure following storage
Examine and keep completely just before commencing pump, eEPTTly shaft seal and bearing lubricant. Reinstall all protection protection devices in accordance to necessity ahead of starting up.
commencing load as well high
1. Starting with out closing discharge valve
1. Near the valve
one.EPTT also restricted
one. Unfastened EPTT appropriately
EPTT leakage extreme
1. EPTT worn
1. Replace EPTT
EPT seal leakage
one. The nominal pressure of mechanical seal decrease than actual work pressure
one. Change the type of mechanical seal
EPTTs in excess of heating
Vibration and noisy
1. EPT working position B is not design and style pointnot design level minimal or high will lead to vibration and noisy
1. Adjust system EPTT doing work point or pump design and style parameters
Air in pump or piping
Evacuate air and get rid of the brings about
EPT starts pumping then stops
1. Clogged in suction line or impeller
one. Clean impeller, clean imEPT of strainer and suction piping