潜水排污泵使用的基本常识（Basic knowledge of submersible sewage pump）.docVIP

潜水排污泵使用的基本常识（Basic knowledge of submersible sewage pump） Submersible sewage pump is a pump without blockage, with a variety of forms such as diving and dry two, most often the submersible WQ type submersible sewage pump, the most common dry sewage pump as W horizontal and WL vertical sewage pump sewage pump two. Mainly used to transport municipal sewage, containing fiber in feces or liquids. The medium of solid particles, such as paper, usually at a temperature of not more than 80 degrees. A fiber that contains easily winding or bunching because of the medium to be conveyed. Therefore, the pump flow channel easy to plug, once the pump is blocked, will make the pump can not work properly, or even burned the motor, resulting in poor drainage. It has a serious impact on city life and environmental protection. Therefore, anti clogging and reliability are important factors in the performance of sewage pumps. As with other pumps, the impeller and the pressure chamber are the two core components of the sewage pump. Its performance is good and bad, it also represents the merits of the pump performance, the anti clogging performance of the sewage pump, efficiency, and cavitation performance, anti abrasion performance mainly by the leaves pump and water pressure chamber two components to ensure. 1, the structure of the impeller type: the impeller structure is divided into four categories: blade type (open and closed), cyclone type, channel type, (including single channel and dual channel) spiral centrifugal four open, semi open impeller has the advantages of easy fabrication, when the impeller can cause blockage, easy cleaning and maintenance but, in the long run, the particle abrasion will make the clearance of blade and the side wall of the indoor water pressure increase, thereby reducing efficiency. And the increase of the clearance will destroy the pressure difference distribution on the blade. Vortex is not only a large amount of losses and the pump will increase the axi