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渣浆泵进水管路安装注意事项

渣浆泵进水管路安装注意事项

作者:admin    来源:未知    发布时间:2019-12-01 09:37    浏览量:
渣浆泵进水管路安装注意事项
(1)泵进水管不能有漏气的地方,否则会吸不上水或减小泵的流量。
(2)泵进水管不能有存气的地方,所以进水管的任何部位都不能高于水泵的进口,进水管的横管应该水平或稍向下倾斜较好,千万不能上翘,上翘容易存留空气。图6-8为进水管安装示例。
(3)如果装有扩散管的话,扩散管应为上面是直线,下面是斜线的偏心扩散管,见图6-8。
(4)泵进水管在泵的进口前必需有一段直管段, 不能马上接弯头,以使水流平稳进入泵内。
(5)泵进水管的直径和底阀口径不能任意减小,进水管的直径和底阀口径至少应与泵入口口径相同,可大不可小,否则可能会造成泵的汽蚀。
(6)泵进水管应尽最缩短,减少弯头等阻力件,以减少进水阻力损失。
(7)进水管的淹没深度以及离底面、壁面的距离要按本章第一节进水池的要求尺寸进行,不要任意减小。
(8)泵进水管一般不能两台泵合用一个进水母管,以免互相干扰夺水,除非母管直径非常之大。
(9)泵进水管应支承牢固,不能把管的重量附加到泵上,造成泵的损坏,
四、泵出水管安装注意事项
(1)泵出水口不宜安装过高,最好是泵在工作时,出水口淹没在水中,停泵时,出水口露出水面,这样最节省扬程也便于检修。尤其对低扬程泵来讲是很重要的。
(2)对扬程较高的泵( >20m)出水管路中必需安装逆止阀,以防止水锤现象发生。逆止阀一般安装在泵出口,闻阔的前面为好。
(3) 泵出水管不能有漏水的地方:尤其对商扬程泵压力较大造成人身伤害。
(4)如果管路需经常拆妇的话,用法兰连接较方便。
(5)泵出水管应支撑牢固,不允许管路重量压在水泵上,以避免损坏泵和发生振动。渣浆泵厂家

Precautions for installation of water inlet pipe of slurry pump
(1) there shall be no air leakage in the water inlet pipe of the pump, otherwise the water will not be absorbed or the flow of the pump will be reduced.
(2) the water inlet pipe of the pump shall not have a place for gas storage, so any part of the water inlet pipe shall not be higher than the inlet of the pump. The horizontal pipe of the water inlet pipe shall be horizontal or slightly downward inclined, and it shall not be upwarped, which is easy to retain air. Figure 6-8 shows an example of water inlet pipe installation.
(3) if a diffusion tube is installed, the diffusion tube shall be an eccentric diffusion tube with a straight line on the top and a diagonal line on the bottom, as shown in Figure 6-8.
(4) the water inlet pipe of the pump must have a straight section before the pump inlet, and the elbow cannot be connected immediately, so as to make the water flow smoothly into the pump.
(5) the diameter of the pump water inlet pipe and the diameter of the bottom valve shall not be arbitrarily reduced. The diameter of the water inlet pipe and the diameter of the bottom valve shall be at least the same as the diameter of the pump inlet, which may be large or not small, otherwise it may cause cavitation of the pump.
(6) the water inlet pipe of the pump shall be as short as possible to reduce the elbow and other resistance parts, so as to reduce the water inlet resistance loss.
(7) the submergence depth of the water inlet pipe and the distance from the bottom and wall surface shall be in accordance with the requirements of the first section of this chapter, and shall not be arbitrarily reduced.
(8) generally, the water inlet pipe of two pumps cannot share one main water inlet pipe, so as to avoid mutual interference and water seizing, unless the diameter of the main pipe is very large.
(9) the water inlet pipe of the pump shall be firmly supported, and the weight of the pipe cannot be attached to the pump, causing damage to the pump,
IV. precautions for installation of pump outlet pipe
(1) the water outlet of the pump should not be installed too high. It is better that when the pump is working, the water outlet is submerged in the water. When the pump is stopped, the water outlet is exposed to the water surface, so as to save the lift and facilitate maintenance. Especially for the low head pump is very important.
(2) check valve must be installed in the outlet pipeline of the pump with high lift (> 20m) to prevent water hammer. The check valve is generally installed at the pump outlet, and it is better to smell the wide front.
(3) the outlet pipe of the pump shall be free from water leakage, especially causing personal injury due to the high pressure of the commercial lift pump.
(4) if the pipeline needs to be disassembled frequently, it is convenient to connect it with flange.
(5) the water outlet pipe of the pump shall be firmly supported, and the weight of the pipe shall not be pressed on the water pump to avoid damage to the pump and vibration. Slurry pump manufacturer

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