DG-Type Multistage Pump
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 5000 unit/month
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Description
DG type pump is horizontal multistage centrifugal pump,which is used to transport clean water with temperature less than 160℃,and also insoluble solid impurity 0.25%,and liquid such as water-soluble solid impurity 5% and other medium similar to water.
Application Area
It is mainly used in light textile industry comprehensive utilization and also sub-high pressure boiler water supply in small-scale thermal power plant.
Performance Range
Inlet diameter： 50－150 mm
Capacity：6－155m3/h
Head：50－960m
Speed：2980r/min
Matched power： 4－450kW
Structural Characteristics
The pump is single casing,single suction,multistage sectional centrifugal pump structure.The inlet%outlet of pump is vertical.(Please refer to structure chart).Detailed structure is as follows:
1、Stator part
It is mainly contained by some parts such as forepart,back part,middle part,guide vane bearing support&balance room,etc,which are all combined by tie bolt and nut.
2、Rotor part
Round nut has been tensed by impeller,impeller space sleeve,balance spacer sleeve,balance disk&shaft sleeve.Moreover,it has been fixed on the main shaft,which adopts flat key so as to avoid rotate.In doing so,the whole rotor supports on the both sides of bearing,consequently,rotor connected with motor directly by elastic pin coupling.
Gear gasket has been installed between impeller and balancing guard sleeve in order to compensate expansion,such part should be replaced during maintenance.
3、Balance organization
This pump adopts balance disk hydraulic balancing device,it is made up of balance ring,balance disk,balance sleeve and balance guard sleeve.
Balance leakage water will return to front-section suction vortex chamber.
- Q:What are the application areas of pumps?
- Performance range from the pump to see giant pump flow up to hundreds of thousands of cubic meters per hour, while the micro pump flow per hour in a few milliliters; pump from atmospheric pressure up to 19.61Mpa (200kgf/cm2); the lowest temperature of the liquid is transported up to -200 DEG C, up to 800 DEG C. Pumps carry a wide variety of fluids, such as water (clean water, sewage, etc.), oils, acid and alkaline solutions, suspensions, and liquid metals.In the chemical and oil sector production, raw materials, semi-finished products and finished products are mostly liquid, and semi-finished and finished products to raw materials, need to go through a complex process, to pump and provide transportation of liquid chemical reaction of the pressure and flow in the process, in addition, the device also used in many pumps to adjust the temperature.In agricultural production, the pump is the main irrigation and drainage machinery. Rural areas in our country are vast and vast, and a large number of pumps are needed every year in rural areas. Generally speaking, agricultural pumps account for more than half of the total output of pumps.Pumps are also the most widely used equipment in the mining and metallurgical industries. The mine needs pumping and drainage. In the process of ore dressing, smelting and rolling, the pump needs water to supply water first.
- Q:If the suction pump does not have enough suction range, you need to add a vacuum pump to increase the suction stroke. How do you install the suction pipe of the vacuum pump? Water pump impeller is not closed, it is normal that the vacuum pump is unable to pump suction pipe to a vacuum, is it because the water pump outlet pipe connected to the role of the check valve? But the water pump, outlet pipe, check valve sealing performance can achieve the function of non leakage?
- Vacuum suction principle of self suction pump:Assuming that the pump connected with the water inlet of a sealed container, the container has plenty of water, since the start of a water pump, water is thrown out of the water impeller pump body, water inlet seal vessel due to the extraction of water to form a vacuum cavity, this assumption will be connected to vacuum cavity and exposed to atmospheric conditions of water, water at atmospheric pressure under the effect of entry into the vacuum chamber".
- Q:Does the control cabinet of the fire control pump need to be related to the fire control room?
- Automatic sprinkler, which is mostly used in this device or high water tank, the whole set of equipment must meet the most unfavorable point (the farthest the highest point of water) water pressure of the faucet.
- Q:Why is the flow of the pump too small will occur cavitation phenomenon?
- Why is it easy to produce cavitation when the inlet flow of pump is lowered?This is because the main performance parameters such as the head, power and efficiency of the centrifugal pump are not fixed, but vary with the flow rate. The curve drawn on a coordinate paper is called the performance curve or characteristic curve of the centrifugal pump. What happens when the flow rate decreases? The disadvantage of throttling adjustment is that the pump flow is small, and the impeller is easy to cause cavitation
- Q:The water tank of the fish tank does not air out and only has the water outlet
- The air inlet pipe is connected with the oxygen burst, the entrance also pulled out, we can see that it is the design of a miter, the oblique incision back to the direction of the water flow speed, this outflow, negative pressure is formed in the oblique incision, the air can be sucked in. As shown.
- Q:Harm of air pump and pump
- Minimum starting current when centrifugal pump of such a small impact on the grid but long closed operation will make the liquid in the pump to the pump overheating temperature is too high will lead to the problem of the seal to a certain temperature will cause deterioration of oil bearing bearing caused by excessive wear and even bite dead
- Q:Why can the centrifugal pump hold down the pressure?
- Centrifugal pumps are vertical, horizontal, single-stage, multi-stage, single suction, double suction, self suction and other forms. Vertical centrifugal pump is referred to as submerged pump, molten salt pump and submerged pump. Centrifugal pumps use the impeller to rotate and cause centrifugal motion of the water to work.
- Q:What are the basic technical parameters of the pump?
- Two, pump head H head is the unit weight of the liquid pump pumping from the inlet of the pump (pump inlet flange) to the outlet of the pump (pump outlet flange) energy value. Effective energy is a Newtonian liquid through the pump unit is obtained. The N m/N=m, the height of liquid column pumping liquid. Habits referred to as meters. Three, the pump speed is n RPM pump unit time revolutions, represented by the symbol n, the unit is r/min. four, the pump NPSH NPSH NPSH is also called net positive suction head, said main parameters of cavitation performance. Cavitation has been used a h power of five, the power of the pump. And the efficiency of the pump is usually refers to the input power, which is the prime mover on the pump shaft power, it is also known as the shaft power, denoted by P;
- Q:How long does the fine stone pump need maintenance? What should I pay attention to?
- nan
- Q:What are the advantages and disadvantages of the pump control system and valve control system in the hydraulic system? How to choose in the project?
- Pump control system is generally used for closed systems, the flow of the oil pump changes to control the motor or cylinder actuator action. The utility model has the advantages that the principle is simple, and the power of the engine can be fully utilized. The disadvantage is that the calorific value of larger, relatively poor precision.
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DG-Type Multistage Pump
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 5000 unit/month
OKorder Service Pledge
OKorder Financial Service
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