Customized floorstanding displays
Customized floorstanding displays.
We, Very Display,are not just a Sign or Display Maker, but a 15 years experienced acrylic POP display pioneer, and also the first supplier in china who combined the acrylic POP signs and displays with Led lighting technology.
We also offer an ever-expanding selection of acrylic displays for use by retail stores, gift shops, museum stores, designers, department stores, collectible shops, bookstores, and restaurants.
Material: we designed and produced lights signs and light displays according to clients demands, acrylic to be the main body light guide plate.
Advantages:
We make all customers dreams came true, because we friendly & conscientious sales and over 14years experienced & creative 3D artists team ;
We make everything possible, any signs or displays involved with various of materials, like wood, metal, glass or even stone, because we have qualified supplier chains working with us;
We make every order on time delivered, because we have quite skilled and high efficiency production and QC team.
Customers' designs and OEM orders welcome.
Desk Calendar Holder,Acrylic Calendar Stand,Acrylic Calendar Holder,Floorstanding Displays. Very display co.,ltd , https://www.verydisplay.com
Plant protection nozzle good and bad big PK
[ China Agricultural Machinery Industry News ] As the saying goes: If workers want to do something good, they must first sharpen their tools. If you want to do a good job of flying defense, in addition to the hard-working iron itself, you must also have a plant protection machine that will come. And this will come, not only in the flight control system, power system, positioning system, etc., but also the choice of spray system is also very particular.
Plant protection nozzle good and bad big PK
Pressure VS Centrifugal Pros and Cons Big PK
At present, the plant protection drone spraying system mainly uses two types of fan-shaped pressure nozzles and centrifugal nozzles. Many new flying hands may still be entangled. Which effect is better? Let's compare them first, their advantages and disadvantages:
The principle of the fan-shaped pressure nozzle is to apply a certain pressure to the liquid medicine through the pressure pump to spray out the fan-shaped pressure nozzle, and the diameter of the droplet of the medicine liquid is generally 70-120 micrometers.
Advantages: The pressure under the liquid medicine is large, the penetrating power is strong, the amount of liquid medicine generated is small, and the evaporation amount in arid areas is small;
Disadvantages: the liquid atomization is not uniform, the diameter of the droplets is quite different, and the nozzle is easy to block, especially when the powder is sprayed.
The principle of the centrifugal nozzle is to drive the centrifugal nozzle to rotate at a high speed by the motor to take out the liquid and then use the centrifugal force to pull out.
Advantages: the atomization of the liquid is uniform, the atomization effect is good, and the diameter of the droplets is not much different;
Disadvantages: the accessories of the centrifugal nozzle are prone to problems. The motor with the brush motor version is easy to damage, the life is short, the replacement frequency is high, the cost of the brushless motor version is high; and the centrifugal nozzle basically has no downforce, completely relying on The wind field of the drone is pressed down, which is larger than the pressure nozzle, and the effect is poor for high-crop crops and fruit trees.
Where is the choice of nozzles?
It is not difficult to see from the above comparison that pressure nozzles and centrifugal nozzles have their own advantages and weaknesses. Faced with different working environments and crops, choosing a good nozzle will make the operation more effective.
Look at the model
According to the person in charge of the flight defense of the company, it is generally better to use the pressure nozzle on a single rotor. The centrifugal nozzle is better matched with the multi-rotor.
Look at crops
If it is a high-density crop, the pressure nozzle will be more suitable. For example, if the cotton sprays the defoliant, the penetration of the pressure nozzle is stronger and the effect will be better.
On the contrary, if the crop density is not particularly large, and the atomization effect is good, the centrifugal nozzle will be more suitable, such as wheat spraying foliar fertilizer, and some common crop pest control, centrifugal nozzle is a better choice, such as wheat. Rice pest control.
See pharmacy
One of the fatal shortcomings of pressure nozzles is that they are easy to block. Therefore, when spraying powder pesticides, try to avoid using pressure nozzles. It is better to use centrifugal nozzles. When spraying water medicines, pressure nozzles and centrifugal nozzles are more suitable. You can choose the right nozzle for your model and crop.
to sum up
Nothing wrong, only better!
In the case of need, the two types of nozzles can be used universally, but when it is necessary to pay attention to it, it is necessary to choose the plant protection nozzle according to the advantages and disadvantages of the nozzle itself, and the type of machine, the sprayed crop and the medicament.
The nozzles are used well and save trouble!