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2017年1月3日星期二

Deep well submersible pump installation and installation in some of the notes and technical points

Deep well submersible pump
Deep well submersible pump motor has a water injection hole at the top, a vent hole, the lower part of a drainage hole, before installation, the need to fill the water from the filling hole, such as irrigation water will directly use the motor overheating, burned. It is suitable for pumping water from deep wells, but also for reservoirs, canals, rivers and so on to the water lifting project: mainly for highland and mountainous areas of human and livestock water, irrigation, also available for urban, industrial, railway, mining, site for drainage. Here we talk about deep well submersible pump installation and installation of some of the notes and technical points to the majority of users to bring the installation and use of the help and guidance.

1. Deep well submersible pump before installation inspection and preparation

(1) Check whether the pump is in compliance with the conditions of use of the pump, that is, the diameter of the well, the vertical and the quality of the wellbore, the static water level, the moving water level, the water discharge and the water quality condition. Otherwise, the pump can not be put under the well .

(2) Check the power supply equipment and power supply lines can ensure the normal operation of the pump.

(3) whether the power supply voltage and frequency meet the conditions of use.

(4) familiar with the installation instructions, the new drilling wells must be washed well, remove the mud after the water before they can install QJ submersible pump.

(5) check the electrical wiring, control and protection devices are reasonable and safe and reliable.

(6) ready to use a variety of installation tools, erected tripod and chain (or other lifting tools) to be safe, reliable, easy to use.

2. Deep well submersible pump installation

(1) pump unloading one drainage network, and then open the water injection and release holes bolts to the motor cavity filled with clean water, be sure to fill, to prevent false full. And check the motor ministries are leaking. Found that leaks should be adjusted according to the location of the bolts tighten bolts.

(2) carefully check whether the cable and connector bruises or damage, and found a timely packet holes.

Deep well submersible pump installation and installation in some of the notes and technical points

(3) measured with a 500-megohm winding insulation resistance of not less than l50 megohm.

(4) Install the protective switch and starting equipment, and check whether the motor is filled with water and then tighten the water injection, put the bolt holes, and then a good line protection board, drainage network ready to go down.

(5) in the deep well pump outlet to install a short water pipe section, and clamped with a clamp down into the well, so that the splint on the well.

(6) and then a pair of clamping plate clamp another section of the water pipe, and then hoisted down and short water pipe flange connection. Lifting the lifting chain to remove the first clamping plate, so that the pump tube down the well is located in the well stage, followed by repeated installation, go down, until all Bahrain, the last section of the splint does not unload the pump fixed on the wellhead.

(7) Finally put the covers, elbow, gate valve and other water pipes.

(8) to connect the flange each time to add pads, align the rear fastening screws to diagonal direction at the same time tighten to prevent skew leaking.

(9) cable to be fixed in the water pipe flange groove, each section are tied with a rope fixed, down the process to be careful, the cable can not be used when the sling, not to bruise the cable.

(10) under the process of the pump stuck phenomenon, to overcome the card point, can not force the next pump to avoid stuck.

(11) large wells and other wells when the installation is prohibited.

(12) protective switch and starter equipment should be equipped with voltage, current meter, indicator light, and installed in the distribution board, on the well around the appropriate location.

3. Deep well submersible pump start

(1) with 500 volt megger to measure the motor winding resistance to ground insulation resistance of not less than 5 megohm.

(2) Check the three-phase power lines, voltage compliance, a variety of instruments, protective equipment and wiring is correct before closing start.

(3) after starting to observe the current, voltage, whether the provisions of the scope of the operation of the sound with or without abnormal vibration phenomenon occurs, if not normal should promptly identify the cause of treatment.

4. Deep well submersible pump test steering

In order to determine the correct direction of rotation of the motor, the pump should be in the closed state, according to two directions. Through the exchange of three

Any two phases of the phase power supply change the direction of rotation. Rotation direction is different, the pressure gauge readings are also different. Pressure higher direction

Is the correct direction of rotation. It is also possible to determine the direction of rotation from the magnitude of the flow rate when the valve is open and the correct direction of rotation in the direction of the larger flow.

5. Deep well submersible pump stop

(1) Turn off the switch to stop, and then start to wait for 5 minutes or more time to prevent the motor temperature is too high, the best cut off after shutdown.

(2) protection switch shall not be disabled, or increase the fuse with aluminum wire copper wire is wrong.

(3) QJ deep well submersible pump continuous downtime shall not exceed 14 days, otherwise, water impurities, precipitation in the bearing and impeller clearance, or even block the pump shaft. If the working environment requires more than 14 days of downtime should be at least every 14 days to start once, run 5 minutes, to ensure that the unit at any time boot.
Manufacturers recommend: Shenlong stainless steel deep well pump
Keywords:Deep well submersible pump, installation check

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