it can only be opened or closed, and the action time when opening and closing is relatively short.　　Generally speaking, the above two cases are the case that the slurry pump does not absorb water. The solutions are also introduced. I believe that people can deal with this problem in time. However, if the problem is serious, you must not adjust it at will. At this time,　　 With protection . cf fire control cabinet integrates many electrical components, which can form a three-dimensional protection for the fire pump, including voltage overvoltage and undervoltage protection, current overcurrent and undercurrent protection, overload protection, phase loss protection, overheating protection, etc. this　　Then it can enter into the volute pump housing. Then in the volute pump casing, the medium slows down because the flow channel is also gradually expanding.Piacenza,　　 In addition, the noise method directly detects the noise of the equipment in the detection process, but this measurement will also be affected by the surrounding noise, so in fact, this measurement is not very accurate.　　Normal operation. The submersible slurry pump can transport the slurry with corrosive or solid particles coal slurry heavy medium transportation and dredging the river. When the equipment is pumping sand, some sand layers around the equipment will make the equipment covered by a large amount of sediment and the current will slowly increase during use. Well, when the equipment is used again, the solvent in the pump is often less, and the power consumption is also less, and the efficiency of the pump in use is often improved, and the fact is　　Motor heating: cause: A. whether it is overloaded; b. Pump motor failure; c. Whether the input three-phase voltage is balanced; Microcomputer controller displays E: cause: pressure gauge failure or timeout undervoltage. In this state, press the key to eliminate the alarm.　　 First remove the pump from the engine.property right,　　 The difference between the vertical slurry pump and the submersible slurry pump The working position of the vertical slurry pump is different. The vertical slurry pump is partially immersed in the pit and cannot be completely immersed in the liquid level. The submersible slurry pump can be completely immersed (including the motor part) below the liquid level; Use of motor for vertical slurry pump　　 The standby submersible slurry pump shall roll the shaft / turn every week to make the bearing uniformly accept the static load and external oscillation. The building structure in the water pump room shall be reconstructed. Sound absorbing and isolating plates shall be installed around the wall and on the top of the machine room and fixed with light steel keel; The connecting holes between the machine room and other rooms are tightly blocked,　　 We also need to make choices according to local conditions when we make purchases at ordinary times. For example, the head of the centrifugal pump itself is relatively high,BorujerdWater well pipeline pump, but its water output is not very large when it is used, so it is effective when it is used in many mountainous areas

　　Submersible slurry pump In addition, the sewage pump is usually driven by a motor, which also requires some time og quantity when switching on and off, so in fact, it can be adjusted to a certain extent during use. The submersible slurry pump needs to use a line when in useoffer,　　Stop, then tighten the bearing seat, press down the nut,BorujerdQJ submersible pump, and fix the axial position of the rotor. The latter submersible slurry pump uses a barrel support, which generally does not need to adjust the impeller clearance. Therefore, if there is a problem with the clearance in the future use, loosen the support clamp first, and say that the nut is loose　　However, with the increase of pump operation time, it is bound to be accompanied by the decrease of pump efficiency and the wear of flow passage components. The most serious parameter affecting the pump characteristic curve is the wear of the pump impeller. After the wear of the impeller, it is equivalent to the downward movement of the pump H-Q curve, which reduces the flow and head　　 When adding lubricating oil to the pump at ordinary times,BorujerdVortex pump and pipeline pump, the metering must be controlled,　　After the submersible slurry pump leaves the factory, there is generally only outgoing cable and the user needs to connect it separately during installation. If the connection is wrong, it will seriously affect the normal operation of the pump, so we should follow the correct steps to connect.　　The operating environment is different: the key difference between the submersible slurry pump and the vertical slurry pump lies in diving. During the operation of the vertical slurry pump some parts intrude into the pit and cannot completely invade the slurry; The submersible slurry pump can completely penetrate below the slurry level.　　 First, screw down the bolts on the side bearing pressure cap, and then remove the nuts used for the connection between the three parts: discharge section, stuffing box body and bearing body; Then screw off the round nut on the shaft, and successively install the bearing inner race, bearing gland and retaining sleeve