Detailed Product Description

         NSQ submersible sand pump

Technical Data

      Capacity:24~2400m3/h 
      Head:11~64 m 

      Voltage: 380V
      Submerged depth of the unit is less than 20m
      Max.weight concentration of sand is 60%

Structural Property

1.The whole machine is dry submersible pump, and the motor adopts oil chamber seal mode and is provided with mechanical seal inside, so that high pressure water and impurities are effectively prevented from entering inner cavity of the motor.
2.Besides the main impeller, there is the agitation impeller which can agitate the sludge deposited on the water bottom into turbulent flow and pump the sludge out.

3.The trans-flux parts such as the impeller and the agitation impeller are made from high-hardness high chromium cast steel, have wear resistance, corrosion resistance and strong drainage capacity, and allow big solid particles to pass.

4.The motor is submerged in water, is not limited by suction stroke, and has high sludge suction rate and thorough desilting.

5.The integral device is simplified, needs no auxiliary stirrer device or ejector device, and has simple and convenient operation and low total investment of the unit.

6.The agitation impeller directly approaches the depositional surface, and controls the concentration through submerged depth. Under the condition of large medium proportion, an auxiliary device can be arranged to increase the concentration of the medium.

Use Conditions

1.The power source is 50Hz/380V three-phase alternating-current supply, and the capacity of the substation transformator is two to three times of the rated capacity of the motor.

2.The temperature of the medium cannot exceed 60, and the medium does not contain inflammable or explosive gases.

3.The maximum weight concentration of the solid particles in the medium: the maximum weight concentration of the ash is 45% and the maximum weight concentration of the slag is 60%.

4.The submerged depth of the unit is not more than 20 meters, and the minimum submerged depth takes submerging of the motor as reference.

5. The unit works in the medium vertically, and the working status is continuous.

Product Selection

NSQ submersible sludge pump has many specifications to meet different working conditions of different users. As long as specifications and modes meeting the working conditions are reasonably and correctly selected, the best benefit can be obtained with less investment; simultaneously, reasonable working conditions can effectively prolong the service life of the pump, and the methods are as follows

1.Whether the field conditions (such as voltage, frequency, water quality, power source and capacity) accords with the use conditions is mastered.

2. The pump specification is selected:

1). Initial selection of the flow rate: the flow rate of the pump is determined according to demands.

2). Determination of pipes:critical sedimentation flow velocity is calculated according to the conveyed medium, so as to reasonably select the pipe diameter.

3). Calculation of pipe loss: the pipe loss is calculated according to the length of the pipe and the number of the syphons and valves.

4).Calculation of the pump lift: the pump lift=vertical height difference from the water surface to the water outlet + pipe loss + outlet pressure+safety margin (10%)

5).The pump specification is determined according to the pump lift and flow rate.

6).The installation mode is determined: fixed mode and mobile mode.