A suppression device that can slow down the water hammer effect in the pipeline when opening and closing the valve

Abstract

The invention relates to the technical field of fluid pipelines, and discloses a suppression device capable of alleviating the water hammer effect in pipelines when opening and closing valves, including a valve body, a pipeline and an adjustment mechanism, the valve body is connected to the pipeline flange, and the adjustment mechanism Connected to the pipeline; the pipeline includes a direct current channel, a flow suppression channel and a flow suppression valve, and the direct flow channel is set through the center of the pipeline; the flow suppression channels are arranged alternately on both sides of the direct flow channel, and both ends of the flow suppression channel are connected to the direct current channel The flow suppression valves are respectively arranged on the flow suppression channels, and the flow suppression valves are connected with the adjustment mechanism; the adjustment mechanism includes adjustment grooves, bearings, bevel gear rings, adjustment rings and bevel gears; the adjustment grooves are arranged at the left end of the pipeline, and the bearings are sleeved on the In the adjustment groove, the bevel gear ring is sleeved on the bearing, the bevel gear and the bevel gear ring are meshed, and the adjustment ring is fixed on the left end face of the bevel gear ring; it solves the problem of closing and opening of the valve in the pipeline and the problem of the water pump in the prior art. Start-up and shutdown and sudden stop of the turbine cause the water hammer effect and easily damage the pipeline.

Description

technical field [0001] The invention relates to the technical field of fluid pipelines, in particular to a suppressing device that can slow down the water hammer effect in pipelines when opening and closing valves. Background technique [0002] In pressure pipelines, the water hammer effect is a hydraulic phenomenon accompanied by sharp fluctuations in fluid pressure and flow rate, usually caused by the closing and opening of valves in the pipeline system, the starting and stopping of pumps, and the sudden stop of turbines. When the open valve is suddenly closed or the feed pump stops, the water flow will generate a pressure on the valve and the pipe wall, mainly the valve or the pump. Due to the smooth wall of the pipe, the subsequent water flow quickly reaches the maximum under the action of inertia, and produces a destructive effect. This is the "water hammer effect" in hydraulics, which is called positive water hammer. On the contrary, the closed valve will also produce...

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Problems solved by technology

[0003] The invention provides a suppression device that can slow down the water hammer effect in the pipeline when the valve is opened and closed. The closing and opening of the pump, the start and stop of the water pump and the sudden stop of the water turbine cause the water hammer effect and easily damage the piping system.

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