The self priming trash pump integrates self-priming and non-blocking sewage discharge, adopts axial recirculation and external mixing, and through the unique design of the pump body and impeller flow passage, it can be installed like the general self-priming pump without installing the bottom valve and irrigation. Water diversion, and can also contain liquids containing large particles of solids and long fibers, which can be widely used in municipal sewage engineering, river pond culture, light industry, papermaking, textile, food, chemical, electric industry, fiber, slurry and hybrid suspension. The most ideal impurity pump for the medium.
During the use of the self priming trash pump, the parts that are more easily damaged are mechanical seals. It is one of the important components of the self-priming sewage pump. When the mechanical seal of the self-priming sewage pump is damaged, the liquid medium will be transported. The phenomenon of water leakage occurs, and the first possibility of water leakage at the mechanical seal is the wear of the moving and stationary rings of the machine seal. The main reasons are as follows:
1. The installation is too tight. Observe the dynamic and static ring plane of the mechanical seal. If there is severe scorching, the plane is black and very deep, the sealing rubber becomes hard and loses elasticity. This phenomenon is caused by the installation being too tight.
2, the installation is too loose. Observing machine seals, static ring plane, its surface has a very thin scale, can be wiped off, the surface is basically no wear, which is caused by the loss of elasticity and assembly of the spring, or the axial movement of the motor.
3, the water quality is poor with particles. Due to poor water quality, containing small particles and high content of hydrochloride in the medium, the surface of the abrasive wear seal or the surface of the strained surface creates grooves and ring grooves.
4. Due to the water leakage caused by cavitation, we need to install the automatic exhaust valve and replace the machine seal.
5, dry grinding damage caused by water shortage operation, we need to discharge the air in the pump and the pump cavity, replace the mechanical seal.
6, the observation machine seals, static ring plane, the surface has a thin layer of scale, can be wiped off, the surface is basically no wear. This is caused by the loss of spring elasticity and poor assembly, or the axial movement of the motor. At this time, we only need to install the spring correctly.