Above photo is model 85-67x6A.
1、 Summary of multistage boiler feed water pump
This series of pumps are horizontal single suction multistage segmented centrifugal pumps, which can transport clear water or liquid with physical and chemical properties similar to clear water. It is suitable for water supply of medium and low pressure boiler or sub high pressure boiler, and also for high pressure water supply and drainage of factory or city. The temperature of transmission medium is -20 ℃～ 140℃, and the allowable pressure at the inlet is less than 0.6MPa.
2、Executive Standards of boiler feed water pump
GB / T5657-95 technical conditions for centrifugal pumps (Class III)
JB / T1051-93 types and basic parameters of multistage clear water centrifugal pump
GB / T 114-2005 multistage centrifugal pumps for coal mines
GB / T 13006 centrifugal pump, mixed flow pump, axial flow pump, cavitation allowance
GB / T 13007 centrifugal pump efficiency
3、Working principle of feed pump for boiler feed water pump
The impeller rotates through the pump shaft driven by the motor to work on the liquid and increase its energy, so that the required amount of liquid can be continuously sent out through the horizontal outlet of the pump's inlet section, positive impeller, positive guide vane, middle section and outlet section, transition pipe, secondary inlet section, reverse guide vane and vertical outlet of outlet section.
4、At present, in the operation of power plant, high-quality and reliable feed water pump is a common equipment in daily work, which provides a stable power source and makes the corresponding power plant equipment have better auxiliary effect. All these high-quality performance comes from several advantages of feed water pump equipment.
1. Precision and operation reliability
From the perspective of current equipment structure design, the unique motor structure and pump body achieve the effect of online design, which has more excellent performance on its concentricity and machining accuracy. From the comparison of the current washing pump model and corresponding functions, we can find that its structure is more stable and its design is more stable, so that the casting process and appearance have been significantly improved, so that the feed water pump equipment in the application shows better effect.
2. Sealing and maintenance convenience
In the use of a comprehensive seal, can make the system run more durable, and the structure of the feed pump also determines its own better sealing effect, through continuous improvement, the corresponding equipment wear rate is greatly reduced. Even in some seriously polluted environment, the feed pump can effectively resist external corrosion and wear. After the equipment is damaged, its simple structure and convenient design can also quickly realize maintenance and easy replacement of bearings and mechanical seals.
5. Product photos
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