CN202819404U - Impulse type smoke water spraying machine - Google Patents

Abstract

The utility model provides an impulse type smoke water spraying machine which can spray smoke for oily preparation and can also spray water for water-based preparation, namely the impulse type smoke water spraying machine is both applied to the oily preparation and the water-based preparation. The impulse type smoke water spraying machine comprises a combustor, a spray pipe communicated with the combustor, and a carburetor formed by an air inlet chamber and a throat tube. The throat tube is communicated with the combustor. A spraying nozzle is arranged on the spray pipe, and the spraying nozzle is connected with a chemical box through a chemical liquid pipe. A fuel tank is connected with the throat tube through a guide tube. The combustor is communicated with the fuel tank through a gas guiding tube, and a single-valve communicated from the direction of the combustor to the direction of the fuel tank is arranged on the gas guiding tube.

Description

Pulse type smoke mist machine

technical field

The technology relates to a pulse fog machine, which is a device for dispensing pesticides.

Background technique

The pulse fog machine is a device for dispensing thermal fog, which has many advantages such as high efficiency, energy saving, and environmental protection. Thermal mist is an oily preparation made by dissolving oil-solvent pesticides in organic solvents and adding various additives such as adhesives and surfactants.

Pulse smoke machine, which can also be regarded as a pulse engine, generally includes a combustion chamber, a nozzle connected to the combustion chamber, a carburetor composed of an air intake chamber and a throat; the throat communicates with the combustion chamber; on the nozzle A spray nozzle is provided, and the spray nozzle is connected with the medicine tank; the fuel tank is connected with the throat pipe through a conduit. When in use, the air enters the intake chamber through the intake valve on the intake chamber (inhalation), and then mixes with the fuel sucked into the throat through the throat to form a combustible mixture that enters the combustion chamber (intake), and the combustible mixture The gas is burned (combustion) in the combustion chamber, and the high-temperature and high-speed gas after combustion is ejected through the nozzle (exhaust). After the high-temperature and high-speed gas is ejected from the nozzle, the pressure in the combustion chamber decreases, and the above-mentioned suction, intake, combustion, and exhaust processes are carried out again, and this cycle is repeated to form a self-excited self-absorption oscillation combustion process of the pulse fog machine.

The hot mist in the medicine box enters the nozzle after passing through the spray nozzle, and is thermally atomized by the high-temperature and high-speed gas to form fine mist, which is discharged into the air from the outlet of the nozzle to condense to form smoke. Instead of slowly falling vertically, it twists and turns and makes irregular movements in all directions, depositing on different positions of various parts of the target. Such as the front and back of crop leaves, the surrounding surfaces of stems and various parts of insect bodies. This multi-directional deposition allows thermal mist coverage to be higher than conventional spray coverage. The smog droplets formed by the hot fog agent are extremely fine, and the mist particles can be suspended in the air for a long time. This long-term floating ability makes it have good permeability to the crop canopy, and can diffuse and infiltrate into the crop bushes by itself, thus producing a good deposition effect. Strong adhesion to the target and resistance to rain erosion. The epidermis of plants and insects has a layer of wax. The oily droplets formed during thermal spray atomization have a strong affinity with the target, showing stronger adhesion and resistance to rain erosion than water-based droplets produced by conventional spraying. , has a longer duration.

However, the pulse fog machine is generally only applicable to the thermal spray of oil-based preparations, and cannot be applied to the water-based preparations formed by mixing water-based pesticides with water.

Contents of the invention

The purpose of the utility model is to provide a pulse-type mist mist machine that can spray mist on oily preparations and water-based preparations, that is to say, it is suitable for both oily preparations and water-based preparations.

This pulse-type smoke and water mist machine includes a combustion chamber, a nozzle connected to the combustion chamber, a carburetor composed of an air intake chamber and a throat; the throat communicates with the combustion chamber; a spray nozzle is arranged on the nozzle, The spray nozzle and the medicine tank are connected by a medicine liquid pipe; the fuel tank is connected with the throat pipe by a conduit; the combustion chamber and the fuel tank are communicated through an air guide pipe, and a single valve leading from the combustion chamber to the fuel tank is arranged on the air guide pipe. to the valve.

The applicant believes that the reason why the existing pulse foggers cannot spray water mist on aqueous preparations may be as follows. We know that the specific heat of oil-based preparations is about half that of water-based preparations. That is to say, for the same amount of water-based preparation and oil-based preparation to be heated to the same temperature, the heat required by the former is about twice that of the latter. When the pulse fog machine sprays the thermal spray normally, the temperature at the spray nozzle is about 700°C, and the temperature at the outlet of the nozzle is about 400°C, so that the hot spray is discharged from the nozzle outlet into the air to condense and form smoke And filled the air. If the existing pulse fog machine is used to atomize the water-based preparation, the temperature at the spray nozzle is about 300°C, and the temperature at the outlet of the nozzle is about 100°C. The droplets are directly sprayed or dripped from the outlet of the nozzle, and the water mist cannot be completely formed to achieve the effect of being diffused in the air; in addition, because the pulsating engine relies on the acoustic conditions formed by the engine's own structure and the oil and gas The self-excited self-priming oscillating combustion process caused by the joint coupling effect of the heating conditions formed by the mixed combustion, because the water-based preparation needs to absorb more heat after being added from the nozzle, destroying the original coupling conditions will make the pulsating engine unable to work normally .

Starting from the above possible reasons, the applicant increased the power of the pulse engine to supplement the heat required for the thermal atomization of the water-based preparation, so as to realize the purpose of using the pulse engine to atomize the water-based preparation, and to be able to thermally atomize the water-based preparation. The atomizing pulsating engine must be able to thermally smoke oily preparations, that is to say, one machine can be used for two purposes. This technology connects the combustion chamber and the fuel tank with an air guide pipe with a one-way valve. During the combustion process in the combustion chamber, the fuel tank is pressurized due to the increase in pressure, so that the difference between the pressure in the fuel tank and the pressure at the throat The value increases, so that more fuel enters the throat under the pressure difference to increase the fuel supply, thereby increasing the power of the engine. This technology changes the original self-priming oil supply mode into a pressurized oil supply mode to increase engine power, so that the pulse-type mist mist machine of this technology is suitable for spraying oily preparations and water-based preparations at the same time.

Therefore, on the basis of the original pulse fog machine, this technology changes the structural characteristics of the fog machine, uses the high-efficiency combustion characteristics of the pulse engine, and the economical and environmental protection characteristics of ultra-low dosage of medicine for pest control through thermal atomization and fuming, and develops a A new type of pulsating engine not only has the function of thermally fuming oil-solvent pesticides, but also has the function of thermally atomizing water-based pesticides, so that the smoke and water mist can rise and diffuse and be suspended in the control space for a long time The purpose is to realize the multi-functionality of one machine, and to adapt to the application requirements of different periods and different dosage forms in the orchard.

In the above-mentioned pulse type mist mist machine, the manual air pump communicates with the air intake chamber through the one-way valve. The pulse type mist mist machine can be started by manual air pump.

Description of drawings

Figure 1 is a schematic diagram of a pulse type smoke water mist machine.

Detailed ways

Referring to the pulse type smoke water mist machine shown in FIG. 1 , the nozzle pipe 1 communicates with the combustion chamber 2 , and the carburetor 3 is composed of an air intake chamber 31 and a throat pipe 32 . The chamber wall of the air intake chamber 31 is provided with a one-way air intake valve 33 capable of unidirectional air intake into the air intake chamber. The throat pipe 32 communicates with the combustion chamber 2 . The spray pipe 1 is provided with a medicine spray nozzle 4, and the medicine spray nozzle 4 is connected with the medicine box 5 by a medicine liquid pipe. The fuel tank 6 is connected with the throat pipe 32 by a conduit, and the combustion chamber and the fuel tank are connected by an air duct 7, and the air duct is provided with a check valve 8 leading from the combustion chamber to the fuel tank direction. Manual air pump 9 communicates with air intake chamber 31 through one-way valve 10 .

When the pulse-type mist mist machine is used for thermal fuming of oil-soluble hot mist, it will be discharged into the air from the outlet of the nozzle to condense to form mist. When thermally atomizing water-based preparations, the median diameter of the droplets discharged from the outlet of the nozzle into the air does not exceed 40 μm, achieving the effect of being diffused in the air, and there is no liquid drop or large droplet spraying at the nozzle nozzle .

Due to the two kinds of chemical pesticides, that is, oil-solvent pesticides and water-based pesticides, the difference in heat energy absorbed during thermal fuming and atomization is very large. Therefore, through a large number of experimental studies, on the basis of the original pulse fog machine, the original self-priming oil supply mode was changed to a pressurized oil supply mode, and the structure of the carburetor was increased (mainly to increase the volume of the intake chamber and throat size), and finally obtain a more powerful pulsating engine to better adapt to the need for more heat in the process of thermal atomization of water-based pesticides. As long as the water-based pesticide can be completely thermally atomized, the oil-solvent pesticide can be completely smoked. Therefore, this technology forms a pulse-type smoke and water mist multifunctional machine that integrates the functions of spraying smoke and spraying water.

Claims (2)

1. Pulse type smoke water mist machine, including a combustion chamber, a nozzle connected to the combustion chamber, a carburetor composed of an air intake chamber and a throat; the throat communicates with the combustion chamber; a spray nozzle is arranged on the nozzle , the spray nozzle and the medicine tank are connected by a liquid pipe; the fuel tank and the throat are connected by a conduit. Directional one-way valve. 2. The pulse type mist mist machine according to claim 1, characterized in that: the manual air pump communicates with the air intake chamber through a one-way valve.