JPS6364687B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil-burning appliance in which the amount of heat generated is varied by keeping the wick height constant and adjusting the amount of air intake. Generally, in an oil combustor that uses a lamp wick, the means to vary the calorific value are to adjust the wick height, or to provide some small holes in the inner and outer flame tubes with larger diameter ones and smaller diameter ones. There are some types that change the amount of air inflow from the small hole by selecting a small hole, but in the former case, the calorific value decreases as the core height is lowered, but the ratio of carbon monoxide to carbon dioxide in the combustion exhaust gas sharply increases. It has the disadvantage that it increases and far exceeds the standard value specified by JIS (0.002 or less). Moreover, in the latter case, only a high calorific value or a low calorific value can be obtained, and there is a drawback that the calorific value cannot be varied linearly. In addition, in both cases, the variable range of calorific value is approximately 100 to 300 kcal/
It was narrow, about h.

The present invention provides an adjustment means for varying the amount of air that flows between the inner part of the lamp wick and the outer flame tube, so that the ratio of carbon monoxide to carbon dioxide in the combustion exhaust gas is within the standard value specified by JIS. The heating value has a wide variable range of 1000Kcal/h or more,
Moreover, it is designed to be linearly variable.

The present invention will be explained below with reference to one embodiment thereof. In the figure, 1 is the main body of the device, 2 is the lamp wick upper and lower knob, 3 is the igniter knob, 4 is the extinguishing lever, and 5
is a combustion cylinder, which is constructed as follows. That is, an inner flame tube 7, an outer flame tube 8, and an outer flame tube 9 are provided concentrically from the inside to the outside by the cross pin 6,
A partition plate 10 having a partition plate 11 caulked thereto is fixed to the inner surface of the inner flame cylinder 7, and an inner flame cylinder cap support stand 12 is coupled to the upper part of the partition plate 10. Further, above the inner flame tube 7, an inner flame tube cap 13 is fixed to the inner flame tube cap support stand 12 at a position with an appropriate gap a, and the inner flame tube cap 13 is fixed to the inner flame tube cap support 12. , an incandescent element support tube 15 to which an incandescent element 14 made of a lath net is fixed by welding or the like.
is fixed. In order to improve the glowing state of the incandescent body 14, a space b is provided between the upper surface of the inner flame tube cap 13 and the lower end of the incandescent body 14, and a gap c is provided between the incandescent body 14 and the incandescent body support cylinder 15. The upper part of the tube is formed of a lath net to allow hot gas to pass therethrough and to reduce the conduction heat transferred to the incandescent support tube 15.

Further, at the upper part of the outer cylinder 9, an outer ring 16 is provided outside the incandescent body 14 and is coupled to the upper surface of the outer cylinder 9.
An outer cylinder 17 made of a heat transmitting body fixed by a cylindrical member is provided, and the upper part thereof has a catalyst body 18 for purifying carbon monoxide, hydrocarbons, etc. on the inner surface, and an outer cylinder ring 19 is welded to the lower part of the outer periphery. The outer cylinder 20 is fixed, and the outer cylinders 9, 17, and 20 form a three-stage structure. Furthermore, the upper part of the outer cylinder 20 has an opening area D of the outer cylinder 20.
An adjustment plate 21 is provided to vary the. The combustion tube 5 constructed as described above is constructed by placing the inner and outer flame tubes 7 and 8 on the upper fire pans 25 and 26 of the wick guide tube 23 and the outer wick tube 24 for providing a guide section for the lamp wick 22. It is posted.

Next, the principle of variable calories will be explained. Combustion begins when the wick 22 raised by the wick up/down knob 2 is ignited by the knob 3 of the igniter, and the combustion heat and combustion air promote the vaporization of the kerosene sucked into the wick 22, and at a certain point the combustion stabilizes. The combustion chamber d is made up of the inner and outer flame tubes 7 and 8, and the gap a is made up of the inner flame tube 7 and the inner flame tube cap 13.
The combustion is completed in , and the incandescent body 14 is heated to red by the hot gas, so the ratio of carbon monoxide to carbon dioxide in the exhaust gas is low, and indoor pollution is small. At this time, as shown in FIG. 4, when the adjusting plate 21 is opened to maximize the opening area D of the outer cylinder 20, the outer cylinder 1
The ventilation force △P ₁ within 7 and 20 is maximum, and the calorific value is also maximum. Next, as shown in FIG. 5, when the adjustment plate 21 is closed and the opening area D of the outer cylinder 20 is minimized, the ventilation force ΔP ₁ ' inside the outer cylinders 17 and 20 is also minimized, and the amount of heat generated is also minimized. That is, by changing the opening area D of the outer cylinder 20, the ventilation force ΔP inside the outer cylinders 17, 20 changes, and by changing the ventilation force ΔP, the amount of kerosene vaporized from the wick 22 and the combustion chamber are changed. The amount of air flowing into d and d' changes. At this time, the amount of combustion air and the amount of kerosene vaporized change while maintaining certain conditions, so compared to when the calorie is varied by moving the wick 22 up and down, the amount of carbon monoxide in the exhaust gas when the calorific value is low is The ratio of carbon dioxide to carbon dioxide is small. In other words, in the variable range from high calorific value to low calorific value, the ratio of combustion air amount to kerosene vaporization amount changes in the best combustion range at any point, so the calorific value can be made linear and its variable width can be made larger. In addition, FIGS. 6 to 8 show other embodiments, and FIG. 6 shows the maximum calorific value,
FIG. 7 shows a plane of the outer cylinder 20 and the adjusting plate 21 in the state of the minimum calorific value, and FIG. 8 shows a cross section from the front. The flat surface of the outer cylinder is sealed to prevent suffocation and combustion. Furthermore, in the above two embodiments, the case where the opening area D of the outer cylinder 20 is changed has been described, but the case where the opening area of the lower part of the outer cylinder 9 and the core guide cylinder 23 is changed, that is, the combustion chambers d, d. Even by changing the amount of air flowing into the inside, the calorie can be varied in the same manner as described above.

As described above, according to the present invention, the combustion width can be varied widely, and the exhaust gas characteristics can also be made good. In particular, in the present invention, a catalyst is provided at the top of the outer cylinder and a damper is provided above the catalyst, so when the damper is closed to reduce the amount of heat generated, the damper causes the exhaust gas to accumulate near the catalyst. The degree of contact between the catalyst and exhaust gas is improved, and the temperature of the catalyst can be maintained high due to the accumulation of this exhaust gas and the radiant heat from the damper, and the exhaust gas characteristics at low heat generation times, which tend to deteriorate relatively, are also improved. be able to. Furthermore, since the added catalyst is installed horizontally within the combustion cylinder, separate from the damper, the catalyst is always in contact with all of the exhaust gas. Therefore, the exhaust gas characteristics are always good regardless of the combustion state.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an oil combustion appliance according to an embodiment of the present invention, Fig. 2 is a perspective view of the main parts thereof, Fig. 3 is a vertical sectional view thereof, and Figs. 4 and 5 are the main parts thereof. 6 and 7 are plan views of main parts of other embodiments,
FIG. 8 is a longitudinal sectional view of the main part. 1... Appliance body, 5... Combustion tube, 7... Inner flame tube, 8... Outer flame tube, 9... Outer tube, 13... Inner flame tube cap, 14... Red-heating element, 17... Outer Tube, 20
... Outer cylinder, 21 ... Adjustment plate (adjustment means).

Claims (1)

[Scope of Claims] 1. An inner flame tube, an outer flame tube, and an outer tube are provided from the inside to the outside, and a wick is visible between the inner and outer flame tubes, and
An oil combustion appliance in which an air-permeable catalyst is disposed inside the upper part of an outer cylinder, and a damper is provided in the upper opening of the outer cylinder above the catalyst to change the amount of combustion by varying the opening area. 2. The oil combustion appliance according to claim 1, wherein the outer cylinder has a three-stage structure consisting of a metal cylinder, a cylinder made of a heat ray transmitter, and a metal cylinder from below. 3. The oil burning appliance according to claim 1, characterized in that a red-hot body is provided at the upper part of the inner flame cylinder, and this red-hot body is constituted by a red-hot part made of a lath net and a support tube that supports the red-hot part.