JPS5853577B2 - Vibrating burner spray device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises an exhaust pipe installed in a combustion chamber, into which at least one injector is provided for injecting an active substance into the exhaust pipe at a short distance from the combustion chamber. The present invention relates to a vibrating burner atomization device for the atomization of materials, with a nozzle of.

Vibrating burner spray devices of this type are used, inter alia, in agriculture and forestry for chemical and biological plant protection.

The object of the present invention is to produce a particularly uniform fine mist of active substances, in particular plant protection agents, and to improve the suspension of the mist, as disclosed in patent No. 768583 (Japanese Patent Publication No. 49-23332) owned by the applicant.
(No.) to form a vibrating burner atomizing device.

It is inter alia the following aspects that have led to the invention.

Oil-containing and oil-soluble plant protection agents are particularly well atomized.

A stable, ultra-fine mist is produced from the above-mentioned plant protection agent by means of an oscillating burner spray device according to the original patent.

This mist remains suspended indoors for a period of one hour, surrounding and covering the leaves of cultivated plants.

It is not possible to atomize pure plant protection agents, since the required and permissible amount of plant protection agent per unit volume is quantitatively too small to obtain sufficiently high fog densities.

A carrier substance, for example water, must therefore be added to the active substance.

However, to create droplets as fine as oil from water, it is necessary to supply relatively large amounts of heat at high temperatures.

However, on the other hand, such temperatures are not tolerated by plant protection agents.

That is, the plant protection agent is destroyed and loses its biological properties.

With the vibrating burner atomizing device according to Patent No. 768,583, these contradictory requirements cannot be met at the same time.

When water is used as a carrier material, a broad droplet spectrum is obtained; large, heavy droplets cannot be suspended and overdosing causes damage to the plants.

In order to overcome these difficulties, the present invention employs a method in which the plant protection agent and water are first atomized or vaporized at different high temperatures and mixed only at the end of the discharge pipe.

The structural solution of the invention is as follows.

That is, in the vibratory burner atomization device according to the original patent, a nozzle is provided in the immediate vicinity of the combustion chamber, in addition to the nozzle or nozzles provided therein.

Through this nozzle water is introduced, ie the substance which requires the highest temperature for its atomization or vaporization.

It is particularly suitable to preheat the abovementioned substances before the outlet of the auxiliary nozzle.

For this purpose, the nozzle is preferably connected to a preheating tube which is in heat transfer contact with the combustion chamber.

This preheating tube can be designed to have a sound-dampening effect.

The noise emitted by the vibrating burner atomizer is thus reduced.

When several substances have to be atomized or vaporized separately at high temperatures, the combustion chamber and the exhaust pipe are connected through several resonant chambers, and a nozzle is placed in each of these resonant chambers in the immediate vicinity of the combustion chamber. It is preferable that there be.

In that case, the mixing of the substances atomized or vaporized at high temperature by the nozzles mentioned takes place only in a common discharge pipe.

Such a solution when using several combustion chambers is such that each of these combustion chambers is connected to the exhaust pipe via at least one resonance chamber in each case, and each of said resonance chambers has a respective nozzle. This is because it is located in the immediate vicinity of the combustion chamber that belongs to the resonance chamber.

In the vibrating burner atomizer according to the present invention, when water is injected through the nozzle disposed in the immediate vicinity of the combustion chamber, in addition to cooling the waste gas, high-temperature steam is condensed into condensation nuclei of cold air, resulting in atomized oil impregnation. A fine grain spectrum is obtained that closely resembles that of plant protection agents.

Plant protection treatments with water- or water-oil emulsions of materials or suitable suspensions of active substances are now possible in oil-containing active substances or in oily carrier substances, since homogeneous fine mist with high buoyancy is obtained. It can be done in the same way as the material.

The present invention will now be described in detail with reference to the accompanying drawings.

The oscillating burner atomizing device or oscillating burner heating device according to patent no. 768,583 has a combustion chamber 10 to which a discharge pipe 12 is connected.

A fuel-air mixture coming from a carburetor 22 is introduced into the combustion chamber 10 .

The carburetor 22 is a tubular formation into which a fuel nozzle 24 and a starting air nozzle 26 project.

At one end of the vaporizer 22 is an air suction device 40 .

The other end of the carburetor 22 is connected to the combustion chamber 10.

The starting air nozzle 26, which connects to the carburetor 22, faces the suction flow device at a 45 degree angle and is positioned so that the airflow exiting the device passes directly over the opening of fuel nozzle #24.

A particularly powerful spray box is thus achieved.

The carburetor also has a venturi constriction in the area of the fuel nozzle 240, which venturi constriction is provided with a sharp separating edge 25 at the end toward the combustion chamber.

By means of the separating edge 25, the fuel that settles on the wall is added back to the air stream.

A mixing screen 16 is provided behind the separating edge 25 and projects into the combustion chamber 10.

This mixing screen 16 ensures good mixture handling,
Moreover, it forms a flashback prevention device.

The air suction device 40 of the vaporizer 22 consists of a funnel-shaped opening with a flow filling piece 30, at the end of which there is a manually adjustable main air valve 3.
2 is an obsession.

The main air valve 32 is provided with a shield 53 on which the starting air bellows 42 are arranged, so that the air suction device 4
Silencing and filtering effects are added to 0.

Starting air bellows 42 lead to starting air pipes 36 to starting air nozzles 26 in carburetor 22 .

The starting air pipe 36 is provided with a check valve 38 .

The starting air bellows also comprises an air inlet valve 43, which opens the opening gap in the rest state.

A spark plug 14 projects into the combustion chamber 10 for igniting the fuel-air mixture introduced into the combustion chamber 10 .

The spark plug is powered by an electric ignition mechanism.

The ignition mechanism consists of a magnetic ignition switch disposed below the starting air bellows 42 and a mushroom-shaped pressure element contacting the underside of the starting air bellows 42.

The active substance (including liquid) is contained within the active substance container 70 .

The active substance container 70 is equipped with a closed lid 86 .

The active substance is removed from the active substance container 70 via an active substance pipe 78, the iron pipe 78 being placed at the front end of the discharge pipe, and receipt of the active substance takes place via a drop weight 74 at the end of the flexible hose 72.

The hose is connected to the active substance tube T8.

There is an air release cock 76 in the active substance tube, by actuation of which air can be removed from the active substance container TO, which is under pressure during operation of the device.

Further, one end of the pressure transmission pipe 18 reaches this air vent cock, and the other end communicates with the vaporizer.

The active substance container 70 is closed at the specific position of the air vent cock 76, and the active substance tube 78, the active substance stopcock 76, and the active substance nozzle 84 are blown out of active substance residues by gas coming with pressure from the pressure transmission line 18. It will be done.

Pressure transmission tube 18 transmits the pressure generated in vaporizer 22 during use of the device to active substance container 70 and thus sucks the active substance into discharge tube 12 via active substance tube 78 and active substance nozzle 84 .

When the pressure in the vaporizer 22 is relieved, the active substance container 70
A check valve 20 is provided in the pressure transmission tube 18 so that the pressure in the pressure is maintained.

Automatic agent stop cock 8 immediately adjacent to the agent nozzle 84
0 is the default.

This is configured to close when the pressure in the discharge pipe 12 falls below a minimum pressure.

The measurement and evaluation of the pressure prevailing in the discharge pipe 12 takes place via a pressure measuring pipe 82 .

In order that two active substances which are chemically immiscible with each other can be atomized simultaneously in the device according to the invention, an auxiliary active substance container 7 is provided.
0a is provided.

This is a closed lid 8 like the active substance container 70 mentioned at the beginning.
6a, a falling weight 74a and a flexible tube 72a.

The active substance taken out from the auxiliary active substance container rOa is passed through the auxiliary active substance pipe 78a to the aforementioned active substance nozzle 8.
4 to another active substance nozzle 84a disposed immediately next to the active substance nozzle 84a.

The auxiliary agent pipe 78a also has an air vent cock 76a.
The cock is connected to the pressure transmission pipe 18 via a pipe 18a.

An auxiliary agent nozzle 84 is located within the auxiliary agent tube 78a.
An automatic substance stop cock 80a is also provided in the immediate vicinity of a.

The cock operates according to the same principle as the active substance cock 80.

If the device is intended to atomize only one active substance rather than two immiscible materials, the two active substance containers TO and 70a can be connected to each other by tubes 93 and 95.

The future tubes are provided with stopcocks 90 and 92.

A discharge pipe overhang 88 is attached to the end of the discharge pipe 12.

Although the fuel container is omitted in the above explanation, Patent No. 768
This generally corresponds to the description of the vibrating burner atomizer according to FIG. 1 of No. 583.

However, this device is provided with an auxiliary nozzle 84b.

The nozzle is located in the exhaust pipe 12 in the immediate vicinity of the combustion chamber 10.

This nozzle can be connected to an auxiliary active substance container 70b.

This auxiliary agent container 70b has an agent receiving hose 72b with a drop weight 74b at its end.

This active substance receiving hose 70b leads to a multi-way cock 76b.

Via the cock, the active substance receiving hose 72b connects to the hose 7.
Combined with 8c.

The hose 78c is connected to a multi-way cock 80b in front of the nozzle 84b.
leading to.

The active substance container 70b can be placed under pressure by means of the pressure transmission line 18, from which a line 18b leads to the multi-way stopcock 76b.

Note that the active substance container 70b is equipped with a sealing lid 86b.

From this container, tubes 93b and 95b lead to active substance container 70a via taps 90b and 92b.

These have a function corresponding to the pipe 93.95 and cock 90°920 functions.

Although container 70b is referred to as an active substance container, it can also be used to contain water.

The substance contained in the active substance container 70b or this container 7
When preheating the water contained in 0b, use the multi-way cock 7
6b leads to a hose 78e and from there to the preheating chamber 91.

The preheating chamber is in heat transfer contact with the combustion chamber 10.

Instead of the above structure of the preheating chamber 91, the preheating tube is installed in the combustion chamber 1.
It is also possible to lead the heating coil tubularly around 0.

It is also possible to form the combustion chamber 10 double-walled and to connect the hose 78e to the double-walled cavity.

Discharge from the preheating chamber 91 is performed by a hose 78d.

Hose 78d can also be coupled to nozzle 84b via a multi-way cock 80b.

The agent contained therein is transferred from the agent container 70 to the nozzle 84.
b into the discharge pipe 12.

For this purpose, multi-way cock T6 is connected to multi-way cock 80b via hose 78b.

The embodiment according to FIG. 2 has two resonant chambers 102104 in parallel.
The combustion chamber 100 is connected to an exhaust pipe 106 via a combustion chamber 100 .

Within each of these resonant chambers 102 , 104 is a nozzle 108 , 110 in close proximity to the combustion chamber 100 .

Further nozzles 112 and 114 are provided at the convergence of the resonant chambers 102 and 104 in the immediate vicinity of the exhaust pipe 106.

Via the nozzles 112 and 114, for example, optionally an active substance or a cooling liquid can be introduced.

Cooling liquid, for example, is introduced through the nozzles 108, 110 for steam generation.

In the embodiment according to FIG. 3 two combustion chambers 200.2
02 are each connected to a discharge pipe 208 via one resonance chamber 204, 206.

Each of the resonance chambers 204 and 206 includes a nozzle 210 .
212 are in the immediate vicinity of the combustion chambers 200, 202 belonging to the respective resonance chambers 204, 206.

Further, the nozzles 214 and 216 are located in the vicinity of the discharge pipe 208 at the gathering portion of the resonance chambers 204 and 206.

Nozzles 214, 216 can be provided, for example, optionally for the introduction of active substances or coolant.

Nozzles 210, 212 may be provided for supplying cooling liquid for steam generation purposes.

The embodiments of the present invention are as follows.

(1) A device that can couple the nozzle 84b to a preheating tube 91 in heat transfer contact with the combustion chamber 10.

(2) A device in which the preheating tube 91 is formed to muffle sound.

(3) Combustion chamber 100 is parallel to several resonance chambers 102°10
4, and a nozzle ioa is connected to each of these resonance chambers 102, 104 through a discharge pipe 106.
, 1 inch is the device in the immediate vicinity of the combustion chamber.

[Brief explanation of the drawing]

FIG. 1 is basically shown in FIG. 1 of Japanese Patent No. 768583. However, FIG. 2 is a schematic diagram of an oscillating burner atomizer with one combustion chamber and several resonant chambers, and FIG. 1 shows a schematic diagram of an oscillating burner atomizing device with a chamber; FIG. 10.100,200,202... Combustion chamber, 1
2.106...--Discharge pipe, 84,108,110°210.212...Nozzle, 91...
Preheating tube, 102, 104, 204, 206...
resonance chamber.

Claims (1)

[Scope of Claims] 1. A combustion chamber, a discharge pipe leading to the combustion chamber, a carburetor installed before the combustion chamber, a fuel container, a plurality of active substance containers, and a flow from the active substance container to the discharge pipe. It consists of an active substance pipe, a pressure transmission pipe between the vaporizer and the active substance pipe, and an active substance stop cock installed in the active substance pipe, the active substance stop cock being used to reduce the pressure in the exhaust pipe below the minimum pressure. A vibrating burner atomizer for active substance atomization designed to close automatically when the active substance is injected into the exhaust pipe, with at least one nozzle in the immediate vicinity of the combustion chamber for injecting the active substance into the exhaust pipe, either directly or with preheating. A vibrating burner atomizer, which is characterized by the use of a vibrating burner atomizer to introduce substances that require high temperatures. 2. Several combustion chambers are each connected to an exhaust pipe via at least one resonance chamber, and each of the resonance chambers is characterized in that a nozzle is located in the immediate vicinity of the combustion chamber belonging to each resonance chamber. A vibrating burner spray device according to claim 1.