MD-D series coal mine with wear-resisting centrifugal pump
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Product overview
D type horizontal multi-stage centrifugal pump, MD type coal mine with wear-resisting centrifugal pump is our company according to the market need and development of series products. This product has a compact structure, strong commonality, high reliability, etc. The import and export direction can rotate 270 degrees, pump shaft can change the direction. D type, MD type pump has the same performance parameters and installation size. By changing the material of pump can be used to transport medium containing abrasive (particles). This product is accord with GB/T 5657-5657 standard for centrifugal pump technology conditions (Ⅲ). MD series products accord with MT114-1985 standard for coal mines with wear-resisting centrifugal pumps.
Application field
D type horizontal multi-stage centrifugal pump, MD type coal mine with wear-resisting performance of centrifugal pump with the same parameters and installation size, this series product has advantages of compact structure, strong commonality and high reliability, import and export direction can rotate 270 degrees, pump shaft can change the direction. By changing the material of pump can be used for conveying medium containing abrasive (particles). This product is accord with GB/T 5657-5657 standard for centrifugal pump technology conditions (Ⅲ). MD series of products also accord with MT114-1985 standard for coal mines with wear-resisting centrifugal pumps.
Product features
Can a good aspiration, breathe flange and flange can be arbitrary direction; Midway through the processing precision, high concentricity; Suction segment, middle section of the three sections of water use tension bolt connection as a body, safe and reliable connection
The working conditions
The work speed: 2950/1480 r/min
Medium: D type horizontal multi-stage centrifugal pump used for conveying water or physical and chemical properties of containing no solid particles similar Yu Qingshui
The liquid.
MD type coal mine with wear-resisting multistage centrifugal pump used for conveying solids content (volume concentration) is not greater than 1.5%
(particle size is less than 0.5 mm), the temperature is not higher than 80 ℃ of neutral mine water or other similar wastewater.
Liquid temperature: 0 ~ 80 ℃;
Flow range: 6.3 ~ 1200 m3 / h;
Lift range: 50 ~ 1140 m;
- 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?
- Valve control system is generally used for open systems, through the proportional valve or servo valve flow changes to control the motor or cylinder actuator action. The advantages of the system are energy saving, heat generation, and control accuracy. The disadvantage is that the system is complex and the cost is higher.
- Q: What's the pump? Where can I use it?
- Pump can usually be divided into three types of displacement pumps, power pumps and other types of pumps according to the principle of operation. In addition to classification according to the working principle, it can be classified and named according to other methods.
- Q: What is cavitation, centrifugal pump cavitation phenomenon how to solve?
- The pump is in operation, if the over-current part of the local area (usually the impeller blade inlet somewhere later) for some reason, the absolute pressure of pumping the liquid was reduced to liquid vapor pressure temperature, liquid vaporization began in the area, produce a lot of steam, forming bubbles, when the liquid contains a lot of bubbles forward by high pressure impeller zone, high pressure liquid around the bubbles in the bubble decreases drastically and rupture. Condensation in the bubble burst at the same time, the liquid particle filled hole at a high speed, this moment has a very strong effect of water hammer, and with a high impact frequency against the metal surface, the impact stress of hundreds to thousands of atmospheric pressure, impact frequency can be up to tens of thousands of times per second, serious breakdown when the wall thickness will be.The process of cavitation in a pump is caused by the bursting of bubbles and bubbles in the water pump and the destruction of the over-current components. Water pump cavitation, in addition to the over-current components will have a destructive effect, but also noise and vibration, and lead to the performance of the pump down, seriously when the pump will be interrupted liquid, can not work properly.
- Q: What is the lift off the dead center point? This is a straight mark about the water pump. What is the function and the relationship between the design head and the pump head? ThanksWhat exactly is the dead point lift? What's the function of this indicator?
- Pump downstream equipment design pressure is greater than 3MPa, if it is 400 meters, the downstream equipment design pressure is greater than 4MPa
- Q: What kind of motor does the hydraulic pump need?
- First count the flow: Q=dn L / minD displacement / revN RPM / minThen calculate the actual power: N=QP/ (60K) kwQ flow L / minP MPa MPaK total efficiency (usually 0.85)
- Q: What is the displacement of the pump? Flow? What is the volume efficiency and mechanical efficiency of the pump?
- Displacement of a pump: the volume of the discharged liquid calculated by the change in the size of the sealing geometry for each revolution of the hydraulic pump
- Q: What is the function of the heating pump system for the water pump design?
- As the feed water temperature is higher, in the case of non warm pump start, will make the pump body is subject to greater thermal impact; in addition, the flow components with the pump contact heating fast, not contact with water directly heating slowly. This expansion due to uneven speed, it will inevitably produce thermal stress, deformation of the pump body, sealing surface, the joint surface is lax and leaking phenomenon. Therefore, the warm water pump system is designed for the water pump.
- Q: Is the centrifugal pump large or small?
- NPSH is also called cavitation, cavitation is too big to be.3, pump the liquid when working in the impeller inlet will produce vapor due to a certain vacuum pressure, vaporization of the air bubbles in the liquid particle movement under the impact of erosion on the impeller, the metal surface, thus undermining the impeller and other metal, then vacuum pressure is called vaporization pressure, NPSH is excess vaporization pressure of surplus the energy position of the unit weight of the liquid in the pump suction port of. The unit with annotation, (NPSH) r with. The absorption process is necessary NPSH H: pump suction fluid allows the vacuum pump installation height is allowed, in meters.
- Q: If the calculation of the required pump flow is 45, lift 110, and the actual pump flow 100, head 125, what will happen in operation? Can I use it properly?
- Centrifugal pumps are too big to measure.There is a reason why the centrifugal pump does not measure up:The pump inlet pipe blockage, leakage.The pump inlet pressure is too low.
- Q: What's the difference between a centrifugal pump and a centrifugal pump? What are they used for?
- As the name suggests, centrifuges are machines that achieve centrifugal effects by centrifugal action. And you say the centrifugal pump is only specific, and the same as the pump
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MD-D series coal mine with wear-resisting centrifugal pump
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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