Abstract: The water spray bottle uses atmospheric pressure to achieve the water spraying effect. The atmospheric pressure enters the pot and forces the water inside to spray out from the water spout. The water spout has many small ventilation holes, which can maintain The air pressure is balanced, and under a certain pressure, the smaller the area, the greater the pressure, and the farther the spray will go. The principle of a water spray bottle is similar to that of other sprayers, but you cannot use a water spray bottle to spray paint because the pressure is not enough. Even if it is sprayed out, it will affect the spraying effect and cause damage to the water spray bottle. Let’s take a look at how a water spray bottle works. 1. What is the principle of a spray bottle
A spray bottle is a water spraying device. Its main function is to spray water mist to water flowers and plants. Many people who grow flowers at home will have such a small spray bottle. However, many friends don’t quite understand the working principle of a watering bottle, so what is the principle of a watering bottle?
1. The water spraying principle of the watering kettle mainly uses the atmospheric pressure. It has a push pump that can push the gas into the kettle, so that the gas pressure in the kettle will increase, and then the water will The atmospheric pressure will force it out of the pot and spray out from the water spout. The greater the pressure, the farther it will spray.
2. There are many small ventilation holes on the water bottle. The principle of pressure balance is used here to allow air to enter to achieve the balance of internal and external atmospheric pressure; in addition, under the condition of a certain pressure, the area The smaller the pressure, the greater the spray, and the farther it sprays. These vents play the role of reducing the spray area.
The principle of spraying water from a spray bottle is actually very simple, similar to that of other sprayers. Therefore, some people suddenly thought that since the spray bottle can spray water, it should also be able to spray paint. So the spray bottle can spray paint. ?
2. Can a spray bottle be used to spray paint?
No.
There are two main reasons why water spray bottles cannot be used to spray paint:
1. Because of the spraying effect, the diameter of the nozzle for spraying paint must be finer. Generally speaking, The hole diameter is about 0.05 mm; while the water spray bottle does not have such high requirements, most of them are around 0.5 mm. If you use a water spray bottle to spray paint, the sprayed paint will be uneven, which will affect the actual effect.
2. Pressure issues. The pressure requirements for spraying water and spraying paint are different. The pressure requirements for spraying water are much smaller, so the design of the water spray bottle does not have high requirements; while spraying paint requires at least At 5 atmospheres, a water spray bottle cannot meet such requirements.
Therefore, you cannot use a spray bottle to spray paint, and if you use a spray bottle to spray paint rashly, it may cause damage to the spray bottle. For example, the water spout is blocked by paint, or the air tightness of the piston is not good. , unable to generate enough negative pressure, resulting in no water spray.