ZA Petrochemical Process Pump

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Product Description:

<1>Technical data:

   a) Flow Q≤2400m3/h

   b) Head H≤300m

   c) Operation pressure P≤2.5MPa

   d) Medium temperature:T -80-+450

<2>Features:

   a) Single-stage horizontal radial cut-opened spiral casing pump;

   b) The impeller is a single-suction radial one

   c) Axial suck-in and radial drain

   d) Axle seal at ex-works uses a single or dual endface mechanical seal, either a packing seal

   e) Anle seal fitted cooling

<3>Application:

   a) Oil refinery, petrochemical industry, coal process Industry and sub-zero engineering;

   b) Chemical industry, paper making, paper pulp, sugar refinery and common process engineering;

   c) Water works, sea water desalt plant;

   d) Warming and air-conditioning system;

   e) Power plant;

   f) Environmental protection project;

   g) Ship and maritime industry and so on.

<4>Structure characteristic:

     This pump is single-stage horizontal radial cut-opened spiral casing pump. The pump casing is foot supported and the impeller is a single-suction radial one, axial suck-in and radial drain- out. Both front and rear oral rings and balancing hole are used to balance the axial force upon the conditions of use. The stan-
dard designed axle seal at ex-works uses a single or dual end face mechanical seal, either a packing seal, and is fitted cooling,rinsing or seal liquid system.(Please make a note in the contract ,in case of a special requirement with the axle seal).The standard pipeline is designed per API. The rated pressure
classes of the flanges on both suck-in and drain-out pipelines

<5>Medium:

    The vitriol, nitric acid, hydrochloric acid, phosphoric acid etc. inorganic and organic acids of various temperatures andconcentrations; the sodium hydroxide, sodium carbonate etc. alkaline solutions of various temperatures and concentrati ons; various salt solutions.Various liquid petrochemical products, organic chemical compounds and other corrosive raw materials and products.The corrosion-proof materials available at present in this C o.can meet with the demands of the above media. Please provide the detailed information about the medium to be transported at order.

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Q:1.5 kW three-phase pump with 600 meters line, should match what big line?
Resistivity of copper conductors is 0.017 ohm mm / m, R= P L/S, the resistance can be obtained by 600 meters 2.5 mm - single stranded conductor is 4.08 ohms, and rated current 1.5KW three-phase pump is about 3A, so the pressure drop resistance of the wire leading to the U=4.08X3=12.24V. So if the supply voltage can be stabilized at 380V~400V, with 2.5 mm - cable; if the supply voltage is between 370~390V, with 4 mm - cable. (above is copper core, aluminum core shall be increased by 1)
Q:Water pumps are always pumping water, what's the matter?
Cause analysis of water pump without waterThere is air in the inlet pipe and pump body(1) before the water pump is started, the water is not filled enough. Sometimes it seems that the water has been discharged from the vent hole, but the pump shaft is not rotated. The air is completely discharged, resulting in a small amount of air remaining in the inlet pipe or pump body.(2) in contact with the water pump inlet of the horizontal application of reverse flow direction, fell more than 0.5% slope, connect one end of the highest import pumps, do not completely level. If the upward tilt, the intake pipe will retain air, reducing the water pipes and pumps in the vacuum, water absorption.(3) pump packing has been used for long-term wear or packing pressed too loose, discharge gap caused by the large amounts of water from filling with the shaft sleeve, the external air gap into the pump from the inside, affected the water.(4) because of the long latent water and the corrosion of the pipe wall, the water inlet of the water inlet is constantly dropping. When the holes appear above the water, the air enters the water inlet pipe from the hole.(5) there is a crack at the bend of the inlet pipe, and there is a small gap between the inlet pipe and the water pump, which may cause the air to enter the inlet pipe.
Q:How do I calculate the power of the pump?
A 15kw pump, know how to calculate the head pumping water for an hour (if the head is 10 meters)Lift: MFlow rate: kg / sec (general water pump is cubic / hour, if 10 cubic hour / hour: 2.7 kg / sec)Efficiency: average 60%15000/102*0.6=88 kilograms per second88/10=8.8 kg / sec8.8*3600=31680 kg / h=31.6 cubic / hour
Q:How can the pump be stationary?
Rusty, turn with your hands to see the situation, the two bearings filled with lubricating oil.
Q:What is the reason that the centrifugal pump outlet pressure decreases and the operating current increases?
The reasons are as follows:(1) motor guide bearing wear, water pump rubber bearing wear, sealing ring wearMotor or water pump bearings wear, will make the submersible pump in the machine on the wrong state of work, serious damage to submersible pumps, stator windings burned. The method is to repair or replace damaged bearings and bushings.(2) thrust bearing wear, submerged pump impeller and lower cover wearThis situation will also make the submersible pump on the machine in an abnormal state of work, serious damage to the submersible pump. The treatment method is to check the cause of the wear of the thrust bearing. Whether the mechanical seal of the shaft extension is damaged or not, which causes sand particles and impurities to enter the inner cavity of the motor, causes excessive wear of the thrust bearing. If it is caused by the mechanical seal of the submersible pump, the replacement of the thrust bearing, thrust plate and impeller, lower cover plate and other parts shall be replaced by mechanical seals at the shaft extension end.(3) the flow of the submersible pump is too large or too smallThe use of submersible pumps flow beyond the scope of use will make the motor overload of centrifugal pump or mixed flow pump, excessive flow, the pump shaft power increases, the motor overload; for the axial flow pump, the flow is too small, the pump shaft power increases, the motor overload. The treatment method is to adjust the valve properly, reduce the flow rate of the centrifugal pump or the mixed flow pump (increase the axial flow pump), and make the flow of the pump in the normal range of use.(4) the shaft of the submersible pump is bent and the bearings are not concentricThis is a serious case of submersible pumps, should be immediately overhauled, straighten the bent shaft, replace the unqualified bearings, re assembled submersible pumps.
Q:Domestic pump automatic shut off the water, but also turn around, stop what happened?
You can find a water pump factory people ask, ah, Baidu, find a corporate website, many have online advice. By the way, a site called water industry navigation, pump manufacturers included a lot, and find it may be faster.
Q:What does water flow mean?
The amount of water delivered by the pump during the unit time, that is, the flow of the pump. Generally, there are three kinds of time units, namely, seconds, minutes and hours. In our country, the unit of flow adopts the international metric units, liters, milliliters, cubic, thousand cubic meters, etc., and different units are used according to different usage environments.
Q:The flow of the pump will be reduced, the speed will change, the power of the motor will change?
To be sure, the flow rate decreases and the speed decreases! The change of power depends on the change of the lift! If the flow rate decreases and the head rises, the power is likely to remain unchanged!
Q:The problem of single phase pumps
Is your starting capacitor pump is broken. Because you pump it is a single asynchronous motor..... Single-phase asynchronous motor by capacitive phase shifting function, the single-phase alternating current isolated from another 90 degree phase alternating current. The two alternating current into two groups or four groups of motor winding, forming a rotating magnetic field inside the motor rotating magnetic field induced current in the rotor, the induced current magnetic field and rotating magnetic field in the opposite direction, by rotating magnetic field push pull into the rotating state, because the rotor must be cutting magnetic lines to produce induction current, so the rotor speed must be lower than the rotating magnetic induction motor speed, so thatSo if the starting capacitor is broken, then your pump will start difficult,
Q:How many lift pumps should be used for 100 meters tall buildings?
35m lift around. HVAC pump lift is generally between 5~50m, the selection of the head is mainly to see the difference between water pressure. As head of 35m as an example, if the inlet height of 60m, so the theory of height =60+35=95m, if all pipe closed air conditioning water system, and resistance of the equipment for water is equal to the pressure difference is equal to the pump head to choose your height, and out of the water is the same, the resistance loss of lift all into the water. The calculated resistance loss is needed to pump lift. The resistance component (1) chiller resistance at 60-100kpa (2) water collector resistance in 120-200kpa (3) 20-50kpa (4) air terminal equipment body resistance is generally not less than 40kpa so 100m building the resistance calculation of estimated value = (1) 80kp+ (2) chiller resistance pipe, the collector resistance (140kpa+ 3) air terminal equipment 40kpa+ (4) body resistance 50kp=310kpa safety factor of 10% 320x1.1=341kpa H= P/ (head of pressure water density * acceleration of gravity g =352000/ (10m) X9.8 =34.8m fand) so we head for 35 meters

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