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Measures to prevent water hammer in vertical slurry pump

人气:833 发表时间:2021-07-23

In the normal use of some water supply systems, water hammer is easy to occur. It is the hammering phenomenon caused by the sudden and rapid change of flow rate when the slurry pump starts and stops, which is harmful to the pipe network. It is very large, which can lead to pipe burst in severe cases, which is very dangerous, so it is very important to prevent water hammer reasonably. Let's take a look at the measures to prevent water hammer in the vertical direction. 1. Reducing the flow rate of water supply pipeline can reduce the surge pressure to a certain extent, but it will increase the diameter of water supply pipeline and increase the project investment. When arranging water pipes, try to avoid uplift or drastic change of slope. 2. Reduce the length of water pipeline. The longer the pipeline is, the greater the water hammer value when the pump is stopped. From one pump station to two pump stations, two vertical slurry pump stations are connected by pumping wells. 3. When the pump is stopped, the size of the water hammer is mainly related to the geometric lift of the pump house. The higher the geometric head, the greater the water hammer value when stopping the pump. Therefore, a reasonable pump head should be selected according to local conditions. 4. After the vertical slurry pump stops running, start the pump again after the pipe behind the one-way valve is filled with water. 5. When starting the water pump, the water outlet valve of the water pump cannot be fully opened, otherwise a great water shock will occur. Many major water hammer accidents in pumping stations occur under such circumstances. Hebei Yingdike Pump Industry Group Co., Ltd. is a professional manufacturer of slurry pumps, submersible slurry pumps and sand suction pumps. It is an enterprise integrating research, development and production in Hebei Province.