sewage pumpIt is a pump specially designed to handle sewage, wastewater and other liquids containing solid particles.

The following is aboutsewage pumpDetailed data on how it works:

1.Main types

• Submersible sewage pump: The pump and motor are integrated in design and can be fully immersed in water. It is suitable for deep wells, ponds, basements and other places.
• Self-priming sewage pump: It has a self-priming function and can automatically suck in liquid after startup. It is suitable for ground-mounted sewage systems.
• Non-clogging sewage pump: Designed with large channels, it can handle sewage containing larger solid particles and is suitable for municipal and industrial wastewater treatment.

2.Equipment composition

• Pump body:

  • Material: Cast iron, stainless steel, engineering plastics, etc.
  • structure: Contains suction and discharge ports, designed with large channels to prevent clogging.

• impeller:

  • type: Open type, semi-open type, closed type.
  • Material: Stainless steel, cast iron, bronze, etc.
  • diameter: According to the pump specifications and design requirements.

• Motor:

  • type: Three-phase AC motor.
  • power: Typically ranges from a few kilowatts to tens of kilowatts, depending on system requirements.
  • Speed: Common range is 1450-2900 revolutions per minute (rpm).

• Seals:

  • type: Mechanical seal, packing seal.
  • Material: Silicon carbide, ceramics, rubber, etc.

• Bearing:

  • type: Rolling bearings, sliding bearings.
  • Material: Steel, bronze, etc.

• control system:

  • PLC controller: Used for logic control and data processing.
  • sensor: Liquid level sensor, pressure sensor, temperature sensor, etc.
  • control Panel: Used for human-computer interaction to display system status and parameters.

3.Performance parameters

• Flow (Q):

  • Unit: cubic meters per hour (m3/h) or liters per second (L/s).
  • Common range: 10-500 m3/h.

• Lift(H):

  • Unit: meter (m).
  • Common range: 5-50 meters.

• Power(P):

  • Unit: kilowatt (kW).
  • Common range: several kilowatts to tens of kilowatts.

• Efficiency(n):

  • Indicates the energy conversion efficiency of the pump, usually expressed as a percentage.
  • Common range: 60%-85%.

• By particle diameter:

  • Unit: millimeter (mm).
  • Common range: 20-100 mm.

• Pressure(P):

  • Unit: Pascal (Pa) or bar (bar).
  • Common range: 0.1-0.5 MPa (1-5 bar).

4.Work process details

• Start time:

  • The time from receiving the start signal to the pump reaching the rated speed is usually a few seconds to tens of seconds.

• water absorption height:

  • The maximum height at which the pump can draw water from the water source is usually several meters to more than ten meters.

• Flow-head curve:

  • It represents the change of pump head under different flow rates and is an important indicator of pump performance.

• NPSH (net positive suction head):

  • Indicates the minimum pressure required on the suction side of the pump to prevent cavitation.

5.Working principle

sewage pumpThe working principle mainly includes the following steps:

1. start up: When the sewage liquid level reaches the set value, the liquid level sensor or float switch will send a signal and start automatically.sewage pump. Manual activation is also possible, usually via a button or switch on the control panel.
2. absorb water:sewage pumpSuction sewage from cesspools or other water sources through suction pipes. The inlet of the pump is usually equipped with a filter to prevent larger debris from entering the pump body.
3. Supercharge: After sewage enters the pump body, centrifugal force is generated by the rotation of the impeller, which accelerates and pressurizes the sewage flow. The design and speed of the impeller determine the pressure and flow of the pump.
4. delivery: The pressurized sewage is transported to the drainage system or treatment facility through the outlet pipe.
5. control:sewage pumpUsually equipped with liquid level sensors and pressure sensors to monitor the operating status of the system. An automatic control system adjusts pump operation based on data from these sensors to ensure stable water pressure and flow.
6. stop: When the sewage level drops below the set value or the system detects that drainage is no longer needed, the control system will automatically shut downsewage pump. Manual stopping is also possible, via a button or switch on the control panel.

6.Application scenarios

• Municipal drainage:

  • Treat urban sewage and rainwater to prevent urban flooding.
  • Typical parameters: flow rate 100-300 m3/h, head 10-30 meters.

• Industrial wastewater treatment:

  • Treat wastewater generated during industrial production to prevent environmental pollution.
  • Typical parameters: flow rate 50-200 m3/h, head 10-40 meters.

• construction site drainage:

  • Remove water and mud from the construction site to ensure smooth construction.
  • Typical parameters: flow rate 20-100 m3/h, head 5-20 meters.

• familysewage treatment:

  • Treat household sewage, such as kitchen and bathroom drainage, to prevent household environmental pollution.
  • Typical parameters: flow rate 10-50 m3/h, head 5-15 meters.

7.Maintenance and care

• Regular inspection:

  • Check the condition of seals, bearings and motor.
  • Check the operation of control systems and sensors.

• clean:

  • Regularly clean the debris in the pump body and pipes to ensure smooth water flow.
  • Clean the filter and impeller.

• lubricating:

  • Lubricate bearings and other moving parts regularly.

• test run:

  • Perform regular test runs to ensure that the pump can start and operate properly in an emergency.

With these detailed data and parameters, a more comprehensive understanding can besewage pumpworking principle and performance characteristics for better selection and maintenancesewage pump.