KCB gear pump operation caused by motor temperature is too high

2023-01-04 09:06:50
KCB gear pump is mainly used in the oil, chemical, metallurgy, mining, power plants and other industries the transfer of oil media, pressurization, fuel injection, and large oil and thin oil machinery and equipment circulation, in all types of machinery and equipment can be lubricated Pump use. Motor overheating is a common problem in the work of KCB gear pump, the specific analysis and testing are as follows: First, the use of the range (flow, lift) over the design requirements of the gear pump series by spectrum selection of appropriate motor Second, the proportion of the medium over gear Third, the packing gland pressure is too tight or mechanical seal spring is too tight Adjust the gland or mechanical seal spring compression Fourth, the pump assembly quality is poor, there is friction Department or the motor and the pump shaft is not the heart to check the assembly quality, troubleshooting can be assembled for the above conditions, one by one to do the analysis to find out the real cause of motor overheating, in accordance with the corresponding fault, maintenance treatment.

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The installation is as follows.

1. Installation Steps
a) Choose correct installation site, taking installation area, pipeline, transmitter location &

valve location into consideration;
b) Install the meter according to direction mark on sensor; c) Install the sensor & transmitter on pipeline;
d) Connect transmitter & sensor with 9-pin cable;
e) Start.


2. Site selection

a) Sensor stays away from mechanical vibration source, for example, pump. Use flexible pipe to connect meter with pipeline if inevitable. The housing of meter must be standalone, out of touch with any other device. There must be 3 times the size of sensor between 2 sensors if there are many flow meters on the same pipeline, to avoid resonance.

b) Do not install sensor on pipeline that easily expands with hot and contracts with cold, especially near expansion joint, which leads to a worse stability.

c) Sensor stays away from industrial electromagnetic field, such as large generator and transformer, better 5m at least. Such device influences the performance of drive coil and pickoffs. Make sure magnetic field intensity less than 400A/m.

d) Sensor shall be installed on lower pipeline, to be easily full of fluid.
e) Make sure Ex-mark meet application requirements if in hazardous area.

f) Build a sunshade if the meter is under direct solar radiation. g) Keep the meter from corrosive liquid.


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