CN206935600U - A kind of bubble type static nozzle - Google Patents

Abstract

The utility model relates to a bubble type electrostatic nozzle suitable for electrostatic pesticide spraying. The utility model has the advantages of improving the adsorption of the mist to the target, high spraying efficiency and uniform atomization. It is characterized by: a cylindrical bubble generator, a mixing chamber, a nozzle cap, an insulating sleeve, a micro-socket, a bearing sleeve, a nozzle substrate, an annular electrode, a nozzle sheet, and a long slit-shaped nozzle. When working, the micro-socket is connected to the external power supply, and the compressed gas is passed into the mixing chamber in a certain way, forming a stable bubble-like two-phase flow with the liquid passing into the mixing chamber, and atomizing the droplets due to the bubble atomization mechanism; entering the nozzle The droplets in the inner cavity of the cap are charged with the same kind of charge due to the electrostatic induction of the ring electrode, which increases the adsorption of the droplets, because the mutual repulsion of the same kind of charges makes the surface tension of the droplets drop, and it is easy to refine into smaller diameter fog Secondary atomization occurs due to droplets; the combined structure of round hole nozzles and long slit nozzles expands the scope of drug spraying.

Description

A bubble type electrostatic nozzle

technical field

The utility model patent relates to a bubble-type electrostatic nozzle suitable for electrostatic pesticide spraying, which belongs to the technical field of plant protection machinery.

Background technique

my country is a large agricultural country, and its pesticide production technology is in the leading position in the world, but its pesticide application technology and plant protection machinery are relatively backward. In the aspect of drug spraying, there are a series of problems such as poor droplet adhesion and low pesticide utilization rate, resulting in a huge amount of pesticides. Waste, drug residues in agricultural products and environmental pollution. Bubble atomization technology has fine atomization particle size, small gas-liquid ratio, high efficiency, can atomize liquids with different viscosities, and has a certain air delivery effect, while electrostatic spray technology can improve the adsorption capacity of droplets. Bubble atomization technology Most of them are used in industry, and the application in agriculture is rare. There are still few bubble-type electrostatic nozzles. Although they are improved compared with traditional nozzles, there are still a series of problems such as small spray area and low utilization rate of pesticides. If the combination of the two advanced technologies is used in nozzles, it can To achieve the effect of complementary advantages.

Contents of the invention

The purpose of this utility model is to provide a bubble-type electrostatic spray head based on the bubble-type electrostatic spray technology in view of the deficiencies of the prior art. Environmental pollution, cost saving.

In order to achieve the above object, the utility model adopts the following technical solutions:

A bubble-type electrostatic nozzle is characterized in that: a cylindrical bubble generator, (2) a mixing chamber, (3) a nozzle cap with a cone-shaped inner cavity, (4) an insulating sleeve, (5) a micro-socket, (6) Bearing sleeve, (7) nozzle substrate, (8) annular electrode, (9) nozzle sheet, (10) long slit nozzle. The (3) nozzle cap and (9) nozzle sheet are all made of insulating material; the (6) bearing sleeve and (1) bubble generator adopt interference connection; the (6) bearing sleeve and (7) The base body of the nozzle adopts an interference connection; the (4) insulating sleeve is made of insulating material or rubber with certain elasticity; the (8) ring electrode is connected with the (5) micro socket, The socket is connected to an external power supply during work; the (3) nozzle cap liquid outlet is a circular hole-shaped nozzle, and the liquid outlet on (4) the insulating sleeve and (9) the nozzle sheet is (10) a long slit-shaped nozzle. The combined structure of the hole-shaped spout and (10) long slit-shaped spout constitutes the liquid outlet of the nozzle.

Compared with the gas-assisted electrostatic nozzle and the traditional nozzle, the utility model has the following advantages:

1. The structure of the utility model is reasonable, the compressed gas is passed into the (2) mixing chamber from the (1) bubble generator in a certain way, and the liquid enters the (2) mixing chamber from the liquid inlet and forms a stable bubble with the compressed gas Two-phase flow, the gas-liquid two-phase forms bubble flow in (2) the mixing chamber, and the intervention of gas increases the flow velocity of the liquid at the outlet, which is helpful for the atomization of the liquid. The extrusion effect of the gas on the liquid at the outlet of the nozzle makes the liquid form a liquid line, and the bubbles expand rapidly at the exit due to the change of the internal and external pressure difference until they explode, breaking the liquid line into smaller particles.

2. When the liquid enters the area where the (3) nozzle cap is located, the electrostatic induction of (8) the ring electrode makes the droplets carry the same kind of charge, and the charged droplets increase the adsorption of the droplets to the target, and the charged droplets are due to The mutual repulsion of the same kind of charges reduces the surface tension of the droplets, which can effectively reduce the diameter of the droplets.

3. The outlet of the nozzle adopts the combination of round hole nozzle and (10) long slit nozzle, (3) the spray outlet of the nozzle cap adopts the round hole nozzle, (9) the nozzle sheet and (4) the fog drop of the insulating sleeve The outlet adopts (10) long slit-shaped nozzles, and the combination of round-hole-shaped nozzles and (10) long-slit-shaped nozzles fills the dead angle of traditional single round-hole-shaped nozzles and expands the spraying range.

4. (4) The insulating sleeve is made of insulating material or rubber with certain elasticity, which can not only achieve the effect of preventing leakage, but also facilitate disassembly and replacement.

Description of drawings

Fig. 1 is a schematic diagram of a front view section structure of a bubble type electrostatic nozzle;

Fig. 2 is a right-view structure diagram of a bubble-type electrostatic nozzle;

Figure 3 is a view of the liquid inlet side.

In Figure 1:

(1) Bubble generator (2) Mixing chamber (3) Nozzle cap (4) Insulation sleeve (5) Micro socket (6) Bearing sleeve (7) Nozzle base (8) Ring electrode (9) Nozzle sheet

In Figure 2:

(10) Long slit nozzle

detailed description

Below in conjunction with accompanying drawing and example the utility model is described further:

The utility model is used in conjunction with an electrostatic sprayer, as shown in Figure 1, the utility model is made of a cylindrical (1) bubble generator, (2) mixing chamber, and the inner cavity is a cone-shaped (3) nozzle cap, ( 4) Insulation sleeve, (5) micro-socket, (6) bearing sleeve, (7) nozzle substrate, (8) ring electrode, (9) nozzle sheet, (10) long slit nozzle. When working, the (5) miniature socket is connected to an external power supply to charge the (8) ring electrode, and the compressed gas is passed into the (2) mixing chamber from the (1) bubble generator in a certain way, and enters (2) ) The liquid in the mixing chamber forms a stable bubble-like two-phase flow, and the gas-liquid two-phase forms a bubble flow in the (2) mixing chamber. The extrusion effect on the liquid at the outlet of the nozzle makes the liquid form a liquid line, and the bubbles expand rapidly at the exit due to the change of the internal and external pressure difference until they explode, and the liquid line is blown into smaller particles. At the same time, due to the (8) ring electrode Electrostatic induction makes the droplets entering (3) the inside of the nozzle cap carry the same kind of charge, the charged droplets increase the adsorption of the droplets to the target, and the mutual repulsion of the same charges between the droplets reduces the surface of the droplets The tension and instability increase, and when sprayed at high speed from the nozzle nozzle, it breaks into small droplets, which effectively refines the droplets. Design (3) nozzle cap outlet as circular hole nozzle, (9) nozzle sheet and (4) outlet on insulating sleeve are designed as (10) long slit nozzle, round hole nozzle and (10) long slit nozzle The combined form effectively solves the dead angle problem existing in the spraying operation of a single circular hole nozzle, and effectively expands the spraying range. The (4) insulating sleeve wrapped outside the (8) ring electrode is made of insulating material or rubber with certain elasticity, which can effectively prevent the leakage problem existing in the operation process and facilitate disassembly and replacement.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (4)

1. A bubble type electrostatic nozzle is characterized in that: a cylindrical bubble generator, a mixing chamber, an inner cavity are a cone-shaped nozzle cap, an insulating sleeve, a micro-socket, a bearing sleeve, a nozzle substrate, an annular electrode, a nozzle The nozzle base is designed with a mixing chamber inside. One end of the bubble generator is fixed on the bearing sleeve, and the other end goes deep into the mixing chamber. The ring electrode is installed on the outside of the nozzle cap, and the nozzle sheet is fixed on the Between the nozzle cap and the insulating sleeve, there is a long slit nozzle on the nozzle sheet. 2. A bubble-type electrostatic nozzle according to claim 1, characterized in that: the liquid outlet on the nozzle cap is a circular hole-shaped nozzle, and the liquid outlet on the insulating sleeve and the nozzle sheet is a long slit-shaped nozzle. The combined structure of the hole-shaped nozzle and the long slit-shaped nozzle constitutes the droplet outlet of the nozzle. 3. A bubble-type electrostatic spray head according to claim 1, characterized in that: the compressed gas enters from the cylindrical bubble generator, and the liquid enters from the circular hole-shaped liquid inlet on the base of the spray head. Form the structure of inner air and outer liquid. 4. A bubble-type electrostatic spray head according to claim 1, characterized in that: said insulating sleeve is made of a certain elastic insulating material or rubber.