A self-coupling installation device for water supply pumps of river engineering models

Abstract

The invention relates to a self-coupling installation device for a river model water supply pump.The device has the advantages of being stable in connection, free of underwater work, convenient and quick to install and easy to operate; besides, normal work of other water pumps is not affected when a single water pump is replaced, and continuous proceeding of an experiment is guaranteed.According to the technical scheme, the device comprises a connector pipeline, one end of the connector pipeline is communicated with a water outlet pipeline, and the connector pipeline is positioned in a water supply tank through a supporting frame with the axis staying horizontal.The device is characterized by further comprising a water pump crooked nozzle and a guiding rail structure used for guiding during water pump installation, one end of the water pump crooked nozzle is communicated with a water pump vertically arranged in the water supply tank, and the other end of the water pump crooked nozzle is communicated with the connector pipeline through a self-coupling connector.

Description

technical field [0001] The invention belongs to the field of river engineering model experiments, in particular to a self-coupling installation device of a water supply pump for providing water sources for river engineering model experiments. Background technique [0002] The physical model experiment of river engineering is one of the main tools and methods for studying hydrodynamics and sediment movement in the estuary and coastal areas. In the physical model test, the water supply system is an important link for the smooth development of the experiment. [0003] At present, the commonly used installation method of water pump is to fix the water pump on the concrete foundation base, and adopt flange connection between the water outlet of the water pump and the pipe; this installation method often has accident problems, such as the foundation is not stable or the surface of the foundation is not leveled , affecting the smooth installation of the water pump; the mechanical v...

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Problems solved by technology

[0003] At present, the commonly used installation method of water pump is to fix the water pump on the concrete foundation base, and adopt flange connection between the water outlet of the water pump and the pipe; this installation method often has accident problems, such as the foundation is not stable or the surface of the foundation is not leveled , affecting the smooth installation of the water pump; the mechanical vibration generated during the operation of the water pump causes the misalignment of the connection between the water suction pipe and the water outlet pipe of the water pump, and forms an air pocket in the pipe to cause cavitation.

[0004] The traditional water pump installation is time-consuming and labor-intensive, which is mainly reflected in the center line alignment, horizontal alignment and elevation alignment in the process of fixing the foundation; because the pump and the pipeline are connected by flanges and bolts, the mechanical vibration during the working process makes the The probability of accidents increases, and the repair and replacement procedures are complicated

Most of the water supply system consists of multiple water pumps working in parallel, and once a water pump fails, the staff needs to enter the water supply tank for maintenance, and other units are forced to stop running, causing the experiment to be interrupted

The problems caused by these phenomena have always existed in the river engineering model tests and have not been effectively resolved

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