16
2.5.Spray control (Pipe controller-5 Way):
As mentioned above, the boom is divided into three sections, which are left, middle and right, which
are independently controlled by three switches. The control device is located on the right side of the
seat, as shown in Fig.6. And two rear wheels are equipped with a compensatory sprinkler, with the
middle part of the sprinkler shared by a spray switch. This pipeline controller is 5-way, and the other
two are standby to connect to spray leg by the user.When the chemical tank is filled, the ball valve is
switched to the spray model (as shown in Fig.5). The control switch is opened (position as the Fig.6),
and the pressure is adjusted to 0.2-0.5 by adjusting the pressure knob. Open the spray switch, pull it
to the inside, control the pipeline, and the left,middle and right three spray switches control the spray
switch of the three segment of the boom on the left,middle and right.
Fig.10: Schematic diagram of pipeline controller
2.6.Determination of spray volume and operating speed:
The amount of spray is related to spray pressure and walking speed. The spray pressure and
operating speed must be determined before operation. The forward speed should not be too fast,
otherwise the turbulence of the machine will affect the spraying uniformity.
The formula for calculating the walking speed:
V =
40g
QB
Formula: V-sprayer travel speed, unit km/h,g-Spraying quantity of sprayer, unit l/min (total volume
of each sprinkler)
Note: the reference value of single nozzle is 1.2l/min (pressure 0.3MPa)
Reference value of single nozzle 1.38l/min (pressure 0.4MPa)
Reference value of single nozzle 1.56l/min (pressure 0.5MPa)
Pressure meter
Spray switch
L/M/R
Pipeline control
master switch
Pressure
control valve
Spare switch
(For spray legs)
