the sewage pump currently visible on the market is called non-clogging sewage pump, then whether it is a true sense of non-clogging! Shanxi sewage pump, which often has users, is blocked by sundries in the sewage pool before long, causing the motor to burn down. How to choose a sewage pump makes many users worry......
"The most critical problem for the sewage pump in Shanxi is the reliability, because the medium to be transported is some mixed liquid containing solid materials. This problem makes the sewage pump have higher requirements in terms of sealing, motor bearing capacity, bearing arrangement and selection than ordinary pumps. Therefore, the sealing reliability and bearing capacity of the sewage pump must be clearly understood when selecting the sewage pump.
In order to improve the life of the sewage pump, most manufacturers at home and abroad are now in the pump protection system to think of ways, that is, in the pump leakage, overload, overtemperature and other failures can be automatic alarm, and automatic shutdown for repair.
It is necessary to set up a protection system in the sewage pump, which can effectively protect the safe operation of the electric pump. But this is not the key to the problem, the protection system is only a remedy after the pump failure, is a relatively passive approach.
The key to the problem should be to start from the root, completely solve the pump in the seal, overload and other aspects of the problem, this is a more active approach.
Shanxi sewage pump selection matters needing attention
Flow rate: the flow rate of the sewage pump shall be selected according to the second flow rate of drainage (unit of measurement: L/s); When there is displacement adjustment, it can be selected according to the maximum hourly flow rate of drainage (unit of measurement: m & sup3;/h).
Head: The head of the sewage pump is determined after calculating the pipeline loss according to the lifting height. If the medium to be transported is a mixed liquid containing a certain solid medium (such as sediment), this problem makes the sewage pump in the motor carrying capacity, bearing arrangement, pump body seal and other aspects of the requirements are higher than the general pump, generally speaking, to choose self-priming sewage pump or submersible sewage pump. When selecting and ordering, be sure to understand whether the sealing and carrying capacity of the sewage pump you choose is appropriate.
Sewage pumps used in buildings include submersible sewage pumps, liquid drainage pumps, vertical sewage pumps and horizontal sewage pumps. The vertical sewage pump and horizontal sewage pump requires the establishment of seismic isolation base, to occupy a certain space, so less use in the building.
In the building, if the site is small and the displacement is not large, the submersible sewage pump and the submersible sewage pump can be preferred. Among them, the subliquid sewage pump can generally be used in more important places. Its overall structure is compact, small in size, low in noise, convenient to move, and simple to install. The energy-saving effect is remarkable, the maintenance is convenient, no need to build a pump room, can dive into the water, greatly reduce the project cost.
In public buildings, one standby water pump shall be set up according to each drainage collecting tank as a unit, and it is advisable to operate alternately in normal times to reduce the long-term load operation of the pump and improve the service life.
When extracting sewage and wastewater with large medium, the outlet pipes of submersible sewage pumps in different sumps shall not be combined and discharged, and the submersible sewage pump is most suitable to be equipped with crushing device. When lifting sewage containing more fiber, can be used with cutting device or large channel submersible sewage pump.
When extracting general waste water, the outlet pipes of submersible sewage pumps of different sumps can be combined and discharged according to the actual situation.
When two or more pumps share one outlet pipe, valves and check valves shall be installed on the outlet pipe of each pump. When the drainage of a single water pump is likely to produce backflow, a check valve shall be set. It is not allowed to combine the pressure drainage pipe with the gravity drainage pipe in the construction.
Mechanical aspects of high reliability, low noise, small vibration.
Shanxi sewage pump
Economically, the total cost of equipment, operation, maintenance and management is the lowest.
The selected model and performance meet the requirements of process parameters such as device flow, head, pressure, temperature, cavitation flow, suction, etc.
Must meet the requirements of the media characteristics:
1) For pumps that transport flammable, explosive, toxic or valuable media, shaft seals are required to be reliable or non-leaking pumps, such as magnetic drive pumps, diaphragm pumps, and shielding pumps.
2) for conveying corrosive medium pump, requires the convection parts using corrosion resistant materials, such as: fluorine plastic material pump, if the corrosion is not strong, can also be used as appropriate engineering plastic pump.
3) For the pump conveying solid particle medium, the convection parts shall be made of corrosion-resistant and wear-resistant materials, and the shaft seal shall be washed with clean liquid when necessary.
