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不论喷灌机,或是移动式水泵站在工作时都是借于吸水装置提取水渠中的水,吸水装置应该保证过流时的水力损失最小和空气渗入水泵最少。在从水渠中吸水时,喷灌机提取全部水量(或者仅仅一部分)。这靠换水系数来保证 K_B=W/Q(W—过水流量;Q—装置
No matter whether the irrigation machine or the mobile pump station is working, the water in the aqueduct is extracted by means of a suction device which should ensure the least hydraulic loss and the infiltration of air into the water pump at minimum. The sprinkler draws the full amount of water (or only a portion of it) as it absorbs water from the drains. This depends on the water exchange coefficient to ensure that K_B = W / Q (W-water flow; Q-device