Name: Vertical Centrifugal Pump And Multi-Stage Centrifugal Pumps
Brand: JIEXI Fast Marine Service(Guangzhou) Co., Ltd
SKU: COD
Availability: InStock
Rating: 5 (1 reviews)

Description

Specification

Product Name	Horizontal Centrifugal Pump
Material	Stainless Steel
Model Series	COD2-50T-380V, COD Series. COD series immersion multistage centrifugal pumps are suitable for conveying thin, clean, non-explosive, non-corrosive or slightlycorrosive liquids free of solid particles and fibers.
Parameters	Rated lift: 37m, Rated flow: 2m³/h, Power: 0.55kW, Voltage: 380V, Current: 3.8/Y1.4A, Insulation class: 155(F), Waterproof class: IP55
Typical Applications	EDM, lathe, grinder, machining center Cooling device Industrial cleaning equipment Filtration system Agricultural irrigation and dehydration Car cleaning
Medium Temperature	Low temperature type (-20~+15℃) Room temperature type (+15~+70℃) High temperature type (+70~+104℃)
Ambient Temperature	<50°C
Maximum Working Pressure	1.0Mpa

Centrifugal pump is the use of impeller rotation to make the water centrifugal movement to work. Before the pump is started, the pump shell and the suction tube must be filled with water, and then the motor is started, so that the pump shaft drives the impeller and water to do high-speed rotating movement, and the water has centrifugal movement, is thrown to the outer edge of the impeller, and flows into the pressure water pipe of the pump through the flow channel of the spiral pump shell.

The Basic Structure of Centrifugal Pump
1. The impeller is the core part of the centrifugal pump, its speed is higher than the force, the blade on the impeller plays the main role, the impeller should pass the static balance experiment before assembly. The inner and outer surfaces on the impeller should be smooth to reduce the friction loss of the water flow.
2. The pump body is also called the pump shell, it is the main body of the pump. It plays the role of supporting and fixing, and is connected with the bracket for mounting bearings.
3. The role of the pump shaft is to connect the coupling and the motor to pass the torque of the motor to the impeller, so it is the main component of transferring mechanical energy.
4. The sliding bearing is used as a transparent oil lubricant, refueling to the oil level line. Too much oil should seep along the pump shaft, and too little bearing should overheat and burn out causing accidents! During the operation of the pump, the temperature of the bearing is up to 85 degrees, and the general operation is about 60 degrees.
5. Sealing ring is also known as leakage reduction ring.
6. The packing box is mainly composed of packing, water seal ring, packing cylinder, packing gland and water seal tube. The function of the stuffing box is mainly to close the gap between the pump shell and the pump shaft, so that the water flow in the pump does not flow outside and the outside air does not enter the pump, and the vacuum in the pump is always maintained. When the pump shaft and the packing friction generate heat, it is necessary to rely on the water seal pipe to inject water into the water seal ring to cool the packing and maintain the normal operation of the pump. Therefore, special attention should be paid to the inspection of the stuffing box during the operation of the pump, and the stuffing should be replaced after 600 hours of operation.

Basic Structure
The basic structure of the centrifugal pump is composed of eight parts, which are: impeller, pump body, pump cover, water retaining ring, pump shaft, bearing, sealing ring, stuffing box, axial force balancing device.
1, the impeller is the core part of the centrifugal pump, it has high speed and large output force.
2, the pump body is also called the pump shell, it is the main body of the pump. It plays the role of supporting and fixing, and is connected with the bracket for mounting bearings.
3, the role of the pump shaft is to connect the coupling and the motor, the motor torque to the impeller, so it is the main part of the transfer of mechanical energy
4, sealing ring is also known as leakage reduction ring.
5, the stuffing box is mainly filled, do not let the water flow inside the pump to the outside and do not let the outside air into the pump. Always maintain the vacuum in the pump! When the pump shaft and the packing friction generate heat, it is necessary to rely on the water seal pipe to inject water into the water seal ring to cool the packing!
6, the axial force balancing device, in the operation of the centrifugal pump, because the liquid is at low pressure into the impeller, and at high pressure out, so that the pressure on both sides of the impeller is unequal, resulting in the axial thrust pointing to the entrance direction, will cause the rotor axial movement, wear and vibration, so the axial thrust bearing should be set in order to balance the axial force.

Species
First, according to the number of impeller classification
1. Single-stage pump: that is, there is only one impeller on the pump shaft.
2. Multistage pump: that is, there are two or more impellers on the pump shaft, then the total lift of the pump is the sum of the lift generated by n impellers.

Second, according to the work pressure to classify
1. Low pressure pump: pressure is less than 100 meters water column;
2. Medium pressure pump: pressure between 100~650 meters water column;
3. High pressure pump: the pressure is higher than 650 meters water column.

Third, according to the impeller suction mode to classify
1. Unilateral water inlet pump: also called single suction pump, that is, there is only one water inlet on the impeller;
2. Bilateral water pump: also called double suction pump, that is, there is a water inlet on both sides of the impeller. Its flow rate is twice as large as the single-suction pump, and it can be approximately regarded as two single-suction pump impellers placed back-to-back together.

Four, according to the combination of pump shell to classify
1. Horizontal open-type pump: that is, a joint is opened on the horizontal surface through the axis line.
2, vertical bonding surface pump: that is, the bonding surface is perpendicular to the axis line.

Five, according to the position of the pump shaft classification
1. Horizontal pump: The pump shaft is located in a horizontal position.
2. Vertical pump: the pump shaft is located in a vertical position.

Six, according to the impeller out of the classification
1. Volute pump: After the water comes out of the impeller, it directly enters the pump housing with a spiral shape.
2. Guide vane pump: after the water comes out of the impeller, it enters the guide vane set outside, and then enters the next level or flows into the outlet pipe.

Seven, according to the installation height classification
1. Self-filling centrifugal pump: the pump shaft is lower than the surface of the suction pool, and it does not need to be filled when starting, and can be automatically started.
2. Suction centrifugal pump (non-self-filling centrifugal pump) : the pump shaft is higher than the surface of the suction pool. Before starting, it is necessary to fill the pump shell and suction pipe with water first, and then drive the motor, so that the impeller rotates at a high speed, the water is thrown out of the impeller by centrifugal force, and the center of the impeller forms negative pressure, the water in the suction pool enters the impeller under atmospheric pressure, and is thrown out of the impeller into the pressurized water pipe by the high-speed rotating impeller.

In addition, according to the use can also be classified, such as oil pump, water pump, condensate pump, ash pump, circulation pump and so on.

Peculiarity
By suction
The single suction pump liquid flows into the impeller from one side, and there is an axial force
The double suction pump liquid flows into the impeller from both sides, there is no axial force, and the flow rate of the pump is almost double that of the single suction pump

In progression
A single stage pump has only one impeller on the pump shaft
Multistage pump the same pump shaft is installed with two or more impellers, the liquid flows through each impeller in turn, the more series, the higher the head

By pump shaft orientation
The horizontal pump shaft is placed horizontally
Vertical pump shaft perpendicular to the horizontal plane

By shell type
The segmented pump housing is connected by long bolts between segments in a plane part perpendicular to the shaft
The central pump housing is split in a plane through the axis line
Volute pump A centrifugal pump equipped with a spiral pressure chamber, such as a commonly used end-suction cantilever centrifugal pump
Turbine pump A centrifugal pump with a vane type pressure chamber

Special structure
As part of the pipeline, the pipeline pump is installed without changing the pipeline
Submersible pump and motor made into one immersed in water
Subaqueous pump The pump body is immersed in the liquid
The impeller of the shield pump and the motor rotor are connected as one body, and in the same sealed shell, there is no need to use a sealed structure, and it is a non-leakage pump
In addition to the inlet and outlet of the magnetic pump, the pump body is completely closed, and the connection between the pump and the motor is driven by magnetic steel mutual suction
Self-priming pump, no need to fill liquid when the pump starts
The high-speed pump increases the speed of the pump shaft by the speed box, the general speed can reach 10000r/min or more, and it can also be called a partial shunt pump or a tangential booster pump
The inlet and outlet nozzle of the vertical cylinder pump is at the same height in the upper part, with an inner and outer shell, the inner shell is composed of a rotor, guide vane, etc., and the outer shell is an inlet diversion channel, and the liquid is sucked from the lower part.
ISG domestic feed pump, domestic pump, community pump, water supply and drainage equipment, according to IS, IR type centrifugal pump performance parameters and the unique combination of vertical pump design, and in strict accordance with ISO2858 requirements for design and manufacture, using domestic high-quality hydraulic model design, is the most ideal new generation of horizontal pump products. The products are all cemented carbide mechanical seals. Application: ISW type pump is suitable for industrial and urban water supply and drainage, such as pressurized water supply in high-rise buildings, garden sprinkler irrigation, fire pressurization, long-distance transmission, HVAC refrigeration cycle, bathroom pressurization and equipment supporting, the use temperature does not exceed 85℃. ISWR type pump is widely used in: metallurgy, chemical industry, textile, paper making, as well as hotel and other boiler heat source water pressurization, transportation, and urban heating system,SGWR type use temperature does not exceed 120℃.

Vertical Centrifugal Pump And Multi-Stage Centrifugal Pumps

Description

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