1, structural characteristics: the use of liquid pulse pump pressure on the liquid pressure, small size, good sealing performance, large liquid discharge, the use of inverted air chamber for pulse liquid pressure regulator to maintain the nozzle continuous injection operations. The liquid tank is not sealed and unpressurized. The use of levers is labor-saving and labor-saving. The work pressure of the liquid is as high as 4.0-7.8 kg/cm2. The spray pressurizes and sprays the young and middle-aged fruit trees to spray. Droplets have a diameter of 50-250 microns and a concentration of 1:50-150 times.
2, technical points:
1 The liquid displacement pump has a large displacement and the volume of the air chamber is small. When the hand is cranked 6-10 times, the pressure reaches 5-7 kg/cm2. When the hand feels a large resistance, the manual speed should be slowed, and the pressure should be reduced. Rubber ring wear.
2 liquid pump pressure parts are two-way seal rubber ring, with a large contact area with the pump body, good sealing, but the resistance is also large, the liquid pump pressure hand crank is also set on the medicine box, it is best to coat each time A layer of soap reduces frictional resistance and causes the medicine box to shake.
3 The air chamber is small in volume, low in stored energy, and the pressure adjustment range is not wide. The best choice is to use a tangential centrifugal nozzle. In order to increase production efficiency, double nozzles can also be used for operation. No impact type nozzles are used to ensure the atomization quality of the liquid.
3, troubleshooting:
1 When the liquid pump cannot be pressurized, there is debris in the inlet and outlet valve unidirectional glass ball valves.
2 When the liquid pump is pressurized, the pressure of the liquid is low, and the atomization quality of the spray head is poor. It is the wear of the two-way rubber seal ring, and a new seal ring should be replaced.
2, technical points:
1 The liquid displacement pump has a large displacement and the volume of the air chamber is small. When the hand is cranked 6-10 times, the pressure reaches 5-7 kg/cm2. When the hand feels a large resistance, the manual speed should be slowed, and the pressure should be reduced. Rubber ring wear.
2 liquid pump pressure parts are two-way seal rubber ring, with a large contact area with the pump body, good sealing, but the resistance is also large, the liquid pump pressure hand crank is also set on the medicine box, it is best to coat each time A layer of soap reduces frictional resistance and causes the medicine box to shake.
3 The air chamber is small in volume, low in stored energy, and the pressure adjustment range is not wide. The best choice is to use a tangential centrifugal nozzle. In order to increase production efficiency, double nozzles can also be used for operation. No impact type nozzles are used to ensure the atomization quality of the liquid.
3, troubleshooting:
1 When the liquid pump cannot be pressurized, there is debris in the inlet and outlet valve unidirectional glass ball valves.
2 When the liquid pump is pressurized, the pressure of the liquid is low, and the atomization quality of the spray head is poor. It is the wear of the two-way rubber seal ring, and a new seal ring should be replaced.
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