Small submersible sewage pump is a kind of sewage treatment equipment with pump and motor connected design, submerged under liquid work, widely used in municipal engineering, industrial wastewater treatment and building drainage field. The equipment adopts vertical structure, with compact structure, low noise characteristics, can be directly installed in the sewage pool operation.
Submersible sewage pumps are submersible sewage pumps that are particularly suitable for transferring liquids containing hard solids, fibrous materials, and particularly dirty, sticky and slippery liquids. There are two types: AS and AV submersible sewage pumps.
QW submersible sewage pump is a kind of pressure pump with large flow channel anti-clogging hydraulic parts design, which greatly improves the dirt passing ability.
Pipeline centrifugal pumps are general-purpose equipment for conveying clear water and liquids with similar physical and chemical properties, widely used in industrial and urban water supply and drainage, high-rise building pressure boosting, fire-fighting systems, HVAC circulation and other fields [2]. According to the installation form can be divided into vertical and horizontal, according to the impeller structure is divided into closed, open and semi-open [1], the adaptable medium temperature range -20 â?? to 240 â?? [3], typical models include ISG, ISW, IRG, etc. [2] [4].
The equipment consists of impeller, pump body, sealing ring and other core components, the impeller rotates to generate centrifugal force to achieve liquid transport, the pump body plays a supporting role, and the sealing system to protect the operating vacuum. It adopts modular piping design, equipped with high-efficiency hydraulic model, supports electric drive and direct connection structure, featuring low noise, small footprint and easy maintenance. Installation requires precise calculation of suction height and ensuring pipeline sealing, and the performance curve reflects the relationship between flow rate, head and power [4]. Common faults such as air binding can be solved by filling water and exhausting air, and the bearings and sealing parts need to be overhauled regularly [2].
