Knapsack sprayer working principle and maintenance
First, the working principle When the operator shakes the rocker or the handle up and down, the plug rod reciprocates up and down in the pump cylinder through the connecting rod, and the stroke is 40-100mm. When the plug rod goes up, the cup moves upward from the bottom, and the volume of the cavity formed by the cup and the pump tube under the cup continuously increases, forming a partial vacuum. At this time, the liquid medicine in the liquid medicine barrel flushes the water inlet valve under the pressure difference between the liquid surface and the cavity, and enters the pump tube along the water inlet pipe to complete the water absorption process. When the stopper rod descends, the cup moves downwards, and the liquid in the pump tube is squeezed, so that the liquid pressure suddenly increases. Under this pressure, the inlet valve is closed, the outlet valve is pressed open, and the liquid passes through the outlet valve into the air chamber. The air in the air chamber is compressed and generates pressure on the liquid medicine. After the switch is opened, the liquid medicine is atomized and sprayed through the spray rod and enters the spray head. In hollow cone conical fog nozzles, including tangential feed nozzles or sprinkler heads with a hydrocyclone water core, the liquid enters the vortex chamber from the tangential inlet passage or the spiral passage of the hydrocyclone or the water core. Rotating, the nozzle hole is on the axis of the vortex chamber, and the ejected liquid forms a hollow conical film, which is then crushed into droplets. As for a nozzle with a double-grooved water core, the liquid is tangentially entered into the vortex chamber formed by the pit and the head piece in the center of the front part of the water core after passing through the water core through the axial liquid inlet channel on the water core. The nozzle of the slit nozzle has a semicircular spherically circulating end and a V-shaped cutout on the outside. The two jets ejected from the arcuate surfaces on both sides of the V-shaped groove collide with each other to produce liquid in the direction of the slot. Membrane, liquid film and static air media to form a fan-shaped fog flow.
Second, the use of maintenance
Knapsack sprayer should pay attention to the following points in addition to strictly following the requirements of the product manual.
1 New cowhide bowls on sprayers such as Gongnong-16 should be immersed in oil or animal oil (without vegetable oil) and soaked for 24 hours before installation. When installing the plug stem assembly into the pump barrel, care should be taken to tilt one side of the cowhide bowl into the pump barrel and then to rotate it so that the plug stem is upright and the other hand helps press the edge of the bowl into the pump barrel. It can be smoothly loaded and should not be stuffed.
2 Select the right boom and sprinkler head as required. The NS-15 sprayer has several spray booms. The double spray head T-shaped spray bar and four spray head spray bar are suitable for wide-range spraying. The U-shaped double sprayer spray bar can be used for crop spraying, and the lateral double sprayer spray bar Suitable for spraying between the rows on both sides of the crop. Hollow conical fog nozzles have several orifice heads. Big hole traffic. The fog spray bar is suitable for wide-range full-spray, the U-shaped double nozzle spray bar can be used for crop spraying, and the lateral double spray bar is suitable for inter-row spraying of both crop bases. Hollow conical fog nozzles have several orifice heads. Big hole traffic. The spray droplets are thicker and the spray angle is larger; on the contrary, the small orifices have small flow, finer droplets, and smaller spray angles. It can be selected according to the requirements of the spraying operation and the size of the crop.
3 When installing a 110-slot nozzle on the T-shaped direct spray boom of the NS-15 sprayer, the notch on the nozzle should be slightly deflected to approximately 5 degrees with the axis of the boom, so that the mist flow between adjacent nozzles can be avoided. Hit. During operation, the height of the spray bar should be controlled so that the mist flow of each spray head overlaps with each other, and the spray volume is evenly distributed throughout the spray, which is suitable when the herbicide is sprayed in full.
4 When working with a load, jog the rocker 18-25 times per minute. Operate the workers' agricultural-16, and Changjiang-10 sprayers so that they cannot bend over so as to prevent the liquid from spilling from the lid and splashing on the body.
5 Do not add more liquid than the water level indicated on the barrel wall. If you add too much, there will be an overflow at the pump cap during operation. When the liquid in the air chamber exceeds the safe water level, air pumping should be stopped immediately to prevent the air chamber from exploding.
6 All leather gaskets should be stored with oil so that they do not shrink.
7 At the end of daily use, spray with a little clear water, clean all parts of the sprayer, and then put it in a ventilated, dry place.
8 After spraying the herbicide, sprayer, including liquid tank, hose, spray bar, sprayer, etc. must be thoroughly cleaned to avoid phytotoxicity to the crop when spraying other pesticides.
Name: Fungus King seasoning
Spec.: 500 g
Shelf life: 12 months
Ingredients: Vegetable oil, bovine liver bacteria, mushrooms, chili peppers, bean paste, garlic, onions, Chicken Seasoning, ginger, chili, liquor, white sugar, edible flavor spices and so on.
Storage method: Normal temperature, avoid light storage, open the bag after refrigeration.
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ChongQing Baifu Foods Co., Ltd. , http://www.baifufood.com