JPS584013Y2 - liquid fuel combustion equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pot-type liquid fuel combustion device.

In general, pot-type liquid fuel combustion devices are mainly used in cold regions and have a long usage season, but the amount of heat required differs greatly between the beginning or end of Seymour and the middle of the season.

Therefore, a stove that generates as little heat as possible can be said to be an easy-to-use stove from the consumer's standpoint.

However, the wider the range of calorific value and the smaller the calorific value of low notches, the more technically difficult it is to achieve complete combustion.At high notches, there is no particular problem as the primary air is mixed sufficiently, but at low notches, the air This causes problems such as soot being deposited inside the burner and the flame not spreading throughout the burner resulting in one-sided combustion.

In particular, soot adheres to the ignition heater, which causes an overcurrent to flow through the ignition heater, resulting in a shortened service life.

Various improvement plans have been proposed in the past in view of these problems, and Figures 4 and 5 show examples of them, but even with this method, the amount of soot deposited may be reduced. Soot will still adhere to the burner, and if the calorific value of the low-notch burner is low, the entire burner will not burn, but only one half of the burner will burn, resulting in so-called one-sided combustion, which will cause the generation of odor and soot, so it is not possible to lower the calorific value of the low-notch burner. The drawback was that it couldn't be done.

The present invention has been made to improve the above-mentioned conventional drawbacks, and provides a liquid fuel combustion device in which the range of calorific value can be greatly changed, the calorific value of low notches is smaller than that of the conventional one, and complete combustion can be performed even at low notches. It is something.

The present invention will be explained below with reference to FIG. 1, which shows the general structure of a liquid fuel combustion apparatus, and FIGS. 2 and 3, which show an embodiment of the invention.

Regarding the conventional example shown in Fig. 4 and Fig. 5, please refer to Section 2.
The same parts as those of the present invention shown in the figures and FIG. 3 are given the same symbols, and their explanations will be omitted.

In Figures 1 to 3, 1 is a combustion tube, 2 is a burner,
3 is a blower, 4 is an oil feed pipe, 5 is an oil amount adjusting device, and 6 is an exhaust pipe.

Further, 7 is an upper combustion ring, 7' is a lower combustion ring, and 8 is a blue flame plate interposed and fixed radially and at the same pitch in the circumferential direction between the upper combustion ring 7 and the lower combustion ring 7'.
Reference numeral 9 denotes a cylindrical blue flame ring having an outer diameter smaller than the inner diameter of the upper combustion ring 7 and fixed to the upper end of the blue flame plate 8.

These upper combustion ring 7, lower combustion ring 7', and blue flame plate 8 constitute a flame auxiliary body and are installed inside the burner 2.

The blue flame ring 9 is fixed to the upper end of the blue flame plate 8 constituting the flame auxiliary body.

Reference numeral 10 denotes a cylindrical blue flame body formed by punching or wire mesh, and is placed on the bottom surface of the burner 2 inside a virtual cylinder formed by the inner end surface of the blue flame plate 8 of the combustion auxiliary body. has been done.

Further, the cylindrical blue flame body 10 has a dimension in the height direction such that it is located below the blue flame ring 9 of the auxiliary combustion body when it is installed on the bottom surface of the burner.

11 is a secondary air hole, and 12 to 14 are primary air holes.

The number of blue flame plates 8 is the same as the number of primary air holes 15 in the first stage provided in the burner 2, or ±.

Next, the operation of the liquid fuel combustion apparatus configured as described above will be explained.

First, to explain the general operation, the oil amount adjustment device 5
When turned on, fuel flows out through the oil feed pipe 5 to the bottom of the burner 2.

At the same time, the blower 3 is started and air is supplied into the burner 2 from the primary air holes 12 to 14 and the secondary air hole 11 of the burner 2.

When the fuel flowing to the bottom of burner 2 is ignited with a matchstick or ignition heater, the ignited flame gradually grows larger due to self-combustion heat and burns at a combustion position according to the amount of fuel supplied, and the exhaust gas after combustion is Heat is exchanged in the combustion tube 1 and exhausted to the outside through the exhaust tube 6.

Next, to explain the operation of the main parts of the present invention, the oil pipe 4
When the supplied fuel is ignited, self-combustion heat promotes evaporation of the fuel and the fire becomes larger and spreads throughout the burner 2 and burns, but the air coming out of the primary air hole 15 hits the blue flame body 10 and some of it goes down. It mixes with the entrained vaporized gas, and some of it becomes blue flame 1.
0 and burns the vaporized gas inside the blue flame body 10.

As a result, the blue flame body 10 becomes red hot, raising the temperature of the combustion chamber, raising the temperature of the vaporized gas, and creating a mixed gas that is easily combustible and combusts with a blue flame due to the inflow of air from the primary air holes 12 to 14.

Moreover, since the inflow speed of air is suppressed by the blue flame body 10, the vaporized gas can spread throughout the burner 2, and even mixing can be obtained, that is, stable and complete combustion can be obtained.

In addition, when the blue flame body 10 is inserted and when it is not, the ventilation force of the exhaust pipe 6 is -0°8 mmH2 when the fuel consumption is the same.
When the temperature exceeds 0, combustion occurs on one side without the blue flame element 10, but when the blue flame element 10 is included, one-sided twisting does not occur unless the temperature exceeds -2 mmH2O.

Therefore, combustion defects due to differences in the length of the exhaust pipe 6 are less likely to occur (compared to the conventional type, the amount of heat generated can be lowered).

Also, when the blue flame ring 9 is raised, the sky air hole 12
This is to prevent the air coming out from interfering with the opposing air and causing turbulence, resulting in non-uniform mixing.

That is, the air coming out of the primary air hole 12 at the top stage is applied to the blue flame ring 9 and is held down so that it does not reach the center of the burner 2, thereby burning the mixed gas that has risen between the blue flame plates 8 on the outside of the blue flame body 10. It is something that makes you

According to the structure of the liquid fuel combustion device of the present invention described above, it is possible to greatly change the range of calorific value compared to conventional ones, and the low notch calorific value can also be greatly reduced.Moreover, because of the blue flame ring, the low notch calorific value can be greatly reduced. Good combustion can be obtained in any combustion state from high to high notch.

In other words, by providing a combustion aid, it is possible to prevent the generation of odor and soot at low notches, but by further providing a blue flame ring, it is possible to improve combustion at medium and high notches, thereby preventing the generation of odor and soot. This means that good combustion can be obtained in any combustion state.

[Brief explanation of the drawing]

Fig. 1 is a simplified sectional view showing the general structure of a liquid fuel combustion device, Fig. 2 is a top view of the burner portion of the device of the present invention, Fig. 3 is a sectional view of the same, and Fig. 4 is a conventional burner. A top view of the portion, and FIG. 5 is a sectional view thereof. In addition, 2 is a combustion tube, 7 is an upper combustion ring, 7' is a lower combustion ring, 8 is a blue flame plate, 9 is a blue flame ring, and 10 is a cylindrical blue flame body.

Claims (1)

[Scope of utility model registration request] A combustion auxiliary body consisting of a predetermined number of blue flame plates interposed radially and at the same pitch between the upper combustion ring and the lower combustion ring is installed inside the burner, and a cylindrical blue flame body made of punching or wire mesh is arranged radially between the upper combustion ring and the lower combustion ring. A cylindrical blue flame ring is fixed to the upper end of the blue flame plate, and a cylindrical blue flame ring is fixed to the upper end of the blue flame plate. A liquid fuel combustion device characterized in that a flame ring corresponds to an uppermost primary air hole bored in the peripheral side wall of the burner.