Plugging valve pumping station water filling device

Abstract

The invention relates to a plug valve type water filling device for a pump station. The plug valve type water filling device comprises a plug valve, a truss groove, a truss, a screw, a bracket and an electric or manual nut, wherein the shape of the plug valve is matched with an inlet of a water pump water inlet pipe, and the plug valve wholly adopts a cone shape; the truss groove is formed in the bottom of a water inlet tank below the water pump water inlet pipe; the truss comprises a cross beam, a vertical beam and a sloping beam which are connected integrally; the upper end of the vertical beam of the truss is connected with the screw; the cross beam is placed in the truss groove; the plug valve is arranged on the cross beam under a water inlet of the water inlet pipe; the bracket is fixed at the upper part of the wall of the water inlet tank; the electric or manual nut is fixed on the bracket. According to the plug valve type water filling device for the pump station, a manual method or an external force method is adopted to lift the plug valve until the plug valve is lifted to the inlet of the water pump water inlet pipe and blocks the inlet of the water pump water inlet pipe; both a bottom valve and a vacuum pump exhaust system are omitted, and meanwhile, the plug valve can further prevent eddies in water.

Description

technical field [0001] The invention relates to a water filling device for a valve blocking type pumping station. Background technique [0002] As an important basic project, the pumping station is playing an increasingly important role in the construction of the national economy. As a general-purpose machine, the water pump has been widely used in various departments of the national economic construction and in the daily life of urban and rural residents. In order to reduce the buried depth of the foundation in most centrifugal pump pump stations, which is beneficial to construction, ventilation, lighting, moisture-proof and groundwater impact, the water pump generally adopts a positive installation height. Usually, the water pump is not filled with water before operation. If it is started directly, the water pump cannot work normally. . Therefore, the centrifugal water pump at the right installation height needs to be filled with water (commonly known as the priming pump)...

AI Technical Summary

Problems solved by technology

Due to the large loss of water head at the bottom valve, the operating efficiency of the pump station is reduced, and sometimes the bottom valve is not closed tightly or cannot be closed, resulting in water leakage from the bottom valve, which cannot complete the water filling of the pump, and is inconvenient to use. It becomes more difficult to fill with water

In order to improve the water filling performance of the water pump, there is also a water filling method with a water bottom valve, that is, the bottom valve is moved from the inlet of the water inlet to a suitable position in the middle of the water inlet pipe, but it needs a long enough water inlet pipe to complete the water pump filling. Moreover, the existence of the bottom valve increases the head loss, reduces the operating efficiency of the pumping station, and is inconvenient to use

[0004] In order to reduce the energy loss caused by the bottom valve, the improved method is not to install a bottom valve at the water inlet of the water inlet pipe to improve the operation efficiency of the pump station, but in this way, the water filling needs of the pump cannot be completed.

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