JPH087209Y2 - Combustion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a combustion device suitable as a defrosting combustor in open field cultivation.

(Prior Art) Generally, a return stack type combustor is used as a defrosting combustor in open field cultivation.

As shown in FIG. 6, this return stack type combustor (a) has an openable and closable inlet (c) that allows main fuel heavy oil to flow into the canopy (b) and also allows ignition fuel gasoline to enter.
And an air port (d) that can be opened and closed, and a canopy part (b)
An upper body portion having an upright combustion cylinder portion (e) in the central part of the above, and an ignition fuel storage cylinder (f) hung inward with the upper end facing the inflow port (c) ( To) and upper body (to)
And a lower body portion (h) which is a circular tank in which a main combustion fuel oil is accommodated and a secondary combustion space can be freely formed in the upper portion of the canopy portion (b).

In order to operate this return stack type combustor (a), the main fuel heavy oil is put in the circular tank of the lower body part (h) in advance, and the weather condition makes it possible to burn the main fuel heavy oil to generate a warm air atmosphere. When the temperature reached, the operator opened the inlet (c) of the canopy (b) of the upper body (g), injected about 100 cc of gasoline into the ignition fuel container (f), and ignited the tip. Insert the match shaft into the ignition fuel container (f),
After confirming ignition, close the inlet (C). As a result, in combination with the inflow of air from the air port (d), the gasoline in the ignition fuel storage cylinder (f) burns, and the combustion heat of this gasoline ignites the main fuel heavy oil, and in a few minutes the main fuel It leads to complete burning of heavy oil.

When extinguishing the fire, if the air port (d) is closed and the upper end opening of the upright combustion cylinder (e) is closed by the lid (li), the combustion is immediately stopped and the extinguishing is performed. In the figure, (N) is an air inlet opening downward.

When such a return stack type combustor (a) is used for open-row cultivation of loquat, for example, at least 20 units are required per 1000 m ² , and it is necessary to arrange these over a wide area at intervals. .

(Problems to be solved by the invention) In the conventional return stack type combustor (a), an operator opens the inflow port (c) of the canopy part (b) and ignites gasoline when it reaches a predetermined temperature. It is necessary to inject the match shaft into the fuel container (f) and put the ignited match shaft into the ignition fuel container (f) to ignite the main fuel heavy oil, which is extremely complicated. It was also dangerous.

In particular, when a large number of them are arranged and used over a wide area for defrosting in open field cultivation, the ignition work requires a lot of labor and time, and the patrol work at night involves many difficulties.

The present invention has been made in view of the above conventional problems, and facilitates ignition work, eliminates the danger, and even when a large number are arranged over a wide area,
An object of the present invention is to provide a combustion device capable of reducing the labor and time required for ignition work.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention ignites an igniting liquid fuel such as gasoline by an electric means in a primary combustion chamber to generate a heat generation temperature of combustion gas in the primary combustion chamber. A liquid fuel such as heavy oil is ignited by means of the above, and is completely burned.It consists of a bottom wall and a net-shaped side wall made of refractory metal, an ignition heater is installed internally, and it straddles the net-shaped side wall. Heavy fuel oil in the lower body part that has a canopy part with an air port and an upright combustion tube part, and a primary combustion chamber that hangs one end of a hung glass fiber core and that contains a liquid fuel for ignition. Provided is a combustion device in which an equal liquid fuel is accommodated and an upper portion is arranged on one side of a circular tank which can be freely formed in a secondary combustion space, and the other end of the glass fiber core is hung in the circular tank. To do.

(Operation) Ignition liquid fuel such as gasoline placed in the primary combustion chamber is ignited by igniting an ignition heater, and the other end is suspended in the liquid fuel such as heavy oil in the circular tank. The sucked liquid fuel such as heavy oil ignites, the mesh side wall becomes red heat, and the liquid fuel such as heavy oil in the circular tank burns in the secondary combustion space while vaporizing, and the combustion air passes through the upright combustion cylinder. It rises and becomes warmer from the upper end to form an atmosphere, which can prevent defrosting.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1, 2, 3, and 4.
The figure will be described.

The combustion device 1 includes an upper body 2 and a lower body 3. The upper body 2 has a canopy 2a and an upright combustion cylinder 2b, and the canopy 2a has an inflow port 4 that can be opened and closed and an openable and closable port. The upright combustion cylinder part 2b has an air inlet 5, and the upright combustion cylinder part 2b has a large number of downwardly opened air intakes on its peripheral wall
2c, a combustion part 2d having an inverted truncated cone shape and a chimney part 2e, and further has a convection promoting bent cylinder 6.

Most of the lower body 3 is composed of a circular tank 7 for containing and burning liquid fuel such as heavy oil, and the canopy portion 2a is provided at an upper opening edge 7a.
Is detachably covered, and a primary combustion small chamber 8 for accommodating and burning the ignited liquid fuel is defined on one side of the circular tank 7.

The primary combustion chamber 8 has a bottom wall 8a and a wire net made of stainless steel, and asbestos is attached to the mesh. The permeation effect and the net-like side wall made of refractory metal temporarily serve as a heat storage body or ignition core during exothermic combustion.
8b and an ignition heater 9 having an ignition function, which is used for an oil fan heater or the like, is internally provided, and a mesh side wall portion
A glass fiber core 10 is provided so as to straddle the upper end of 8b, and one end 10a of the glass fiber core 10 is suspended in the primary combustion small chamber 8.

The circular tank 7 accommodates a liquid fuel such as heavy oil, and the upper portion thereof can be freely formed into a secondary combustion space. Further, the circular tank 7 crosses the mesh-shaped side wall portion 8b and is close to the inner bottom portion 7b of the circular tank 7, and has a glass fiber core.
The other end 10b of 10 is located.

The ignition heater 9 penetrates the peripheral wall portion 3a of the lower body portion 3 and is connected to the conductive wire 11.

The glass fiber 10 and the mesh side wall portion 8b have a function of sucking up liquid fuel such as heavy oil contained in the circular tank 7.

The combustion apparatus 1 of the present invention is constructed as described above and operates as follows.

40 liters of heavy oil was put in the circular tank 7 of the combustion device 1 in advance, and 100 cc of a mixed liquid as an ignition liquid fuel, which was an equal mixture of gasoline, kerosene, and heavy oil, was put in the primary combustion small chamber 8 in order to prevent it in consideration of weather conditions. When frost is needed, the ignition heater 9 is energized.

When the ignition heater 9 ignites, the mixed liquid is ignited and burned in the primary combustion small chamber 8, the net-shaped side wall portion 8b becomes red hot, and the heavy oil component sucked up by the glass fiber core 11 is ignited. The liquid fuel such as heavy oil inside is completely combusted in the secondary combustion space and the combustion part 2d while being vaporized from the liquid surface part, and the combustion air is diffused from the chimney part 2e to the surroundings to form a warm air atmosphere and cultivate crops. Can prevent from frost damage.

The gasoline content in the ignition liquid fuel controls the sensitive ignition, the kerosene content maintains the ignition, and the heavy oil content controls the heat generation temperature. In this way, the heavy oil having a low ignition temperature and a high calorific value is vaporized and burned by the primary combustion of the ignited liquid fuel, and complete combustion is achieved.

According to the combustion apparatus 1 of the present invention, an operator opens the inflow port (c) of the canopy part (b) and ignites gasoline, as in the conventional return stack type combustor (a). It is not necessary to perform the work of injecting into the ignition fuel storage cylinder (f) into the ignition fuel containing cylinder (f), and the liquid fuel can be ignited by simply energizing the ignition heater 9. It is extremely easy and there is no danger associated with ignition work.

Further, the conductive wire 11 of the combustion device 1 is connected to the timer (le) through the transformer (wo), the timer (le) and the thermostat (wa) are connected, and the thermostat (wa) is connected to the electric supply line (power). ). Then, in consideration of the weather conditions, the thermostat (wa) is set to the temperature at which the ignition heater 9 is energized when defrosting is required, and when the heavy oil is completely combusted, the timer (le) can turn off the energization, so that It can be automatically ignited.

When the combustion device 1 of the present invention is used for defrosting in a wide open field cultivation area, as shown in FIG. 5, for example, 20 combustion devices 1, 1 are arranged at a required interval in the 1000 m ² area. , The conductive wire 11 of each combustion device 1 is connected to the timer (le) via the transformer (wo), the timer (le) and the thermostat (wa) are connected, and the thermostat (wa) is connected. Is connected to the electric supply line (f).

Next, put 40 liters of heavy oil into the circular tank 7 of each combustion device 1,1 ...
100cc of a mixed liquid as an ignition liquid fuel, in which equal amounts of gasoline, kerosene, and heavy oil are mixed, is placed in the primary combustion small chamber 8 and the temperature is set to a temperature at which the ignition heater 9 is energized when frost protection is required in consideration of weather conditions. Is set.

When the outdoor cultivation area is arranged and set in this manner and the operating temperature set in the thermostat (wa) is reached, the ignition heater 9 is energized and the ignition heater 9 ignites,
The mixed liquid in the primary combustion chamber 8 is ignited and burned, and as described above, the liquid fuel such as heavy oil in the circular tank 7 is completely combusted in the secondary combustion space and the combustion section 2d while vaporizing from the liquid surface portion. Then
Combustion air diffuses from the chimney portion 2e to the surroundings to form a warm air atmosphere and prevent cultivated crops from being damaged by frost.

The timer turns off the power when the heavy oil is completely burned.

As described above, when the combustion apparatus 1 of the present invention is used in a large number over a wide area for defrosting in open field cultivation, the conductive wire 11 is used for the timer (le) and the thermostat (wa).
By connecting with, a large number of combustion devices 1 can be automatically ignited when necessary, and the labor and time required for ignition work can be significantly reduced as compared with the conventional manual ignition work, and at night No patrol work is required.

Each of the combustion devices 1, 1 ... Is connected to an ignition liquid fuel tank attached to each combustion device 1 by interposing a solenoid valve or the like at the other end of a conduit having one end opened into the primary combustion small chamber 8. However, the solenoid valve may be connected to another timer to automatically replenish the required amount of liquid fuel for ignition.

(Effect of the Invention) According to the combustion device of the present invention, the liquid fuel can be ignited by simply energizing the ignition heater.
The conventional dangerous and troublesome manual ignition operation can be eliminated, the ignition work becomes extremely easy, and the danger associated with the ignition work does not occur.

Also, if you connect the conductive wire of the combustion device with a timer and a thermostat, you can automatically ignite when necessary,
When arranging and using a large number of combustion devices over a wide area, it is possible to automatically ignite a large number of combustion devices when needed, and the labor and time required for ignition work compared to the conventional manual ignition work. Can be significantly reduced, and no need for patrol work at night. Still, it has many practical effects such as being cheaper than the conventional heavy oil heater for exclusive use of facilities, and is extremely effective as an automatic heater for outdoor use.

[Brief description of drawings]

1 is a cutaway front view of the main part of the device of the present invention, FIG. 2 is a plan view of the same lower body, FIG. 3 is a cross-sectional view of the lower body, FIG. 4 is an enlarged detailed view of a primary combustion chamber, and FIG. FIG. 6 is an explanatory view when a large number of combustion devices of the present invention are arranged, and FIG. 6 is an explanatory view of a conventional device. 1 ... Combustion device, 2 ... Upper body, 2a ... Canopy, 2b ...
Upright combustion cylinder, 4 ... Inlet, 5 ... Air port, 7 ... Circular tank, 8 ... Primary combustion chamber, 8b ... Net side wall, 9 ...
Ignition heater, 10 ... glass fiber core, 11 ... conductive wire.

Claims (1)

[Scope of utility model registration request] 1. A liquid for ignition comprising a bottom wall and a net-shaped side wall made of refractory metal, an ignition heater provided therein, and one end of a glass fiber core hung so as to straddle the net-shaped side wall. The primary combustion small chamber that contains fuel contains a liquid fuel such as heavy oil in the lower body that has a canopy that has an air port and an upright combustion cylinder, and the upper body is removable. A combustion device which is disposed on one side of a freely-arranged circular tank, and has the other end of the glass fiber core suspended in the circular tank.