When
the diesel trash pump are operated in parallel, the speed and slip of the motor
are basically synchronized due to the power supply in the same grid. Therefore,
as long as the pump group is the same and the outlet valve opening is the same,
the external characteristics of each pump load are almost the same. The flow
error of each pump during operation is not large, and parallel connection is
not difficult.
Trailer mounted pump is independent of each other. Although the selection of each
diesel engine is the same, the speed regulation of each engine is not
synchronized. That is to say: the idle speed of each diesel engine irrigation
pump may be adjusted to be very close, but the outlet of each pump The pressure
has a large error due to the change of the flow rate. Therefore, the parallel
operation of the diesel engine pump with constant speed adjustment may cause
the phenomenon that one unit is overloaded while the other unit is running at
no load. The overloaded unit exceeds the output of the engine due to the load.
The torque will inevitably stop running automatically, causing the water supply
system to collapse. The diesel engine water pump automatic control panel can be
used to withstand mechanical, electrical, vibration, thermal stress and the
possible moisture effects under normal operating conditions.
The
automatic control panel of the diesel dewatering pump can automatically start
the pump set within 15 seconds after receiving the start command issued by the
user (passive normally open contact), and monitor, alarm and handle the fault
during the operation of the pump set, using intelligent numbers. As a key
component of automatic control, the automatic control panel has strong
versatility, complete functions and reliable performance; it can be matched
with various diesel pump sets. When the engine driven water pump is used, its
own operation can't be wrong. If your operation is wrong, then the fault of the
equipment when it is used is normal, and the effect of the operation will also
be problematic. Therefore, when using it, it is necessary to learn how to use
the device correctly, and then operate after learning, so as to avoid errors.
Maintenance is a very important thing in the process of operating a diesel
water pump. If you extend the life of your equipment, you must perform
maintenance because the equipment is inevitably worn out during use.
The
automatic control panel of the diesel engine irrigation pump adopts the
automatic control panel of the diesel engine pump, which can withstand the
mechanical, electrical, vibration, thermal stress and the moisture effects that
may be suffered under normal operating conditions. When preparing to start the
diesel water pump for the first time, check the installation of all the
equipment, inject the oil from the fuel filler into the diesel water pump
suspension, check the oil level with the dipstick, meet the required height,
add cooling water from the expansion tank to the diesel engine, the water level
is The 2/3 expansion tank is suitable for high. The diesel oil pump tank is filled
with diesel oil, and the exhaust hand pressure pump is pressed to let the
diesel oil enter the machine through the filter, connect the water pump inlet
and outlet pipes and the gate valve, close the gate valve of the water outlet
pipe, the outlet pressure gauge and the vacuum pressure gauge. Watering or
vacuuming the diesel water pump and inlet pipe, and draining the internal air,
opening the external circulation cooling water valve. When the inlet valve is
fully open and the outlet valve is closed, the diesel water pump is started.
When the diesel engine reaches the normal speed, it is gradually opened. The
valve on the water pipe is adjusted to the required working condition.
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