JPH0227294Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a monotube oil combustor that burns by the ventilation force of the flame tube.

[Conventional technology]

A monotube oil combustor burns by sucking air through the ventilation force generated by the flame tube.
Insufficient ventilation may cause abnormal combustion, and stable combustion may occur unless the maximum calorific value is reduced. On the other hand, if the ventilation force is too strong, abnormal combustion will occur. This ventilation power greatly affects not only the length of the flame tube but also the density of the air, so if a combustor that produces stable combustion on flat ground is used as is at a high altitude of 1000 m or more above sea level, it will be the same as on flat land. It was not possible to obtain a combustion condition. For this reason, in order to achieve the same combustion conditions on both flatlands and highlands, it is necessary to change the length of the flame tube since the density of the air cannot be changed.

By the way, conventional proposals for changing the length of the flame tube have often been implemented as a structure to lower the height of the packaging, and mainly involve stacking flame tubes with different diameters and changing the length of the flame tube by sliding one of them. Things are common. (Refer to Utility Model Application Publication No. 56-60010) [Problem to be solved by the invention] By the way, the structure in which the flame tubes are doubled and one slides, means that the oil combustor is not only composed of flame tubes, but also has a guard. The guard and pillars are attached, and these guards and pillars must be moved all at once, and a means of fixing them in the slid position is also required, making the actual structure extremely complex and expensive. It is also very troublesome to handle.

[Means to solve problems]

This idea changes the ventilation force of the flame tube with an extremely simple structure. A ceiling frame 2 is attached to the lower flame tube 1 of a monotube oil combustor, and a central opening 6 is formed on the top surface of the ceiling frame 2. an opening edge 6a extending into the central opening 6;
is located at the lower end of the cylindrical portion 6b extending downward from the upper surface of the top frame 2, and the cylindrical portion 6b and opening edge 6a are formed into an L-shaped cross section, and the top plate 4 is located above the central opening 6. Bend the outer peripheral edge of the cylinder part 6 downward.
A cylindrical flange 3 with a smaller diameter than b is formed, and an upper flame tube 5 inscribed in the cylindrical flange 3 is provided between the top plate 4 and the opening edge 6a, and the upper flame tube 5 is made detachable to improve ventilation. It consists of a changeable flame tube.

[Effect]

In this device having the configuration described above, when the removable upper flame tube 5 is removed, the cylindrical flange 3, which is the outer peripheral edge of the top plate 4, is located inside the cylindrical portion 6b of the top frame 2. The cylindrical portion 6b and the opening edge 6a form a cylindrical flange 3 of the top plate 4.
is held, and the top plate 4 is difficult to come off even without special fixing means.

In addition, when the upper flame tube 5 is attached, the upper end of the upper flame tube 5 is located inside the cylindrical flange 3 to support the top plate 4, and the lower end of the upper flame tube 5 is cylindrical. It has a smaller diameter than the part 6b and is mounted on the opening edge 6a, so that the height of the flame tube can be easily increased without using special parts, and the ventilation force is increased.

〔Example〕

The implementation structure of this invention will be explained with reference to the drawings. 1 is the lower flame tube of a mono-tube oil combustor, 2 is the ceiling frame attached to the upper part of the lower flame tube 1, and 6 is the center provided on the top surface of the ceiling frame 2. The opening edge 6a, which is an opening and looks into the central opening 6 of the ceiling frame 2, is located at the lower end of the cylindrical part 6b extending downward from the top surface of the ceiling frame 2, and the cylindrical part 6b and the opening edge 6a are L-shaped in cross section. is formed. 4 is a top plate located above the central opening 6 and provided with a combustion gas discharge port; 3 is a cylindrical flange formed by bending the outer peripheral edge of the top plate 4 downward, and has a diameter smaller than that of the cylindrical portion 6b; It is. Reference numeral 5 designates an upper flame tube inscribed in the cylindrical flange 3 of the top plate 4 and installed between the top plate 4 and the opening edge 6a of the top frame 2, and is designed to be detachable at will by the operator.

7 is the oil tank of the oil burner, and 8 is the wick top and bottom knobs.

Therefore, when burning an oil combustor with the upper flame tube 5 attached, the ventilation force generated by the upper flame tube 5 is applied to the combustion section in addition to the ventilation force generated by the lower flame tube 1, and the air Even when used at high altitudes where the density of fuel is low, the amount of oxygen supplied to the combustion section is now the same as on level ground, preventing abnormal combustion.

On the other hand, when used in flat areas where the air density is high, the ventilation force is too strong when the upper flame tube 5 is attached.
Although there is a risk of blowing out the flame, remove the upper flame tube 5 and insert the cylindrical flange 3 of the ceiling frame 4 into the opening edge 6a of the ceiling frame 2.
If the fuel is placed on a rack, the ventilation force applied to the combustion section will be weakened and stable combustion will be possible.

〔effect〕

As mentioned above, this design has a removable upper flame tube 5.
is installed between the opening edge 6a of the top frame 2 and the top plate 4, so the operator can try using it by attaching or removing the upper flame tube 5 as necessary, and choose the most suitable one for the place of use. This made it possible to obtain a combustion condition, making it possible to use oil burners in a wide area.

In addition, the above effects are achieved only by adding the upper flame tube 5 consisting of a simple cylindrical body, and there is no change in other parts, and there is only a slight increase in cost. It has become a highly useful idea that can expand the range of practical use at low cost.

[Brief explanation of drawings]

FIGS. 1 and 2 are sectional views of essential parts showing how this device is used. 1... Lower flame tube, 2... Top frame, 3... Cylindrical flange, 4... Top plate, 5... Upper flame tube, 6... Center opening, 6a... Opening edge, 6b... Cylindrical Department.

Claims (1)

[Scope of utility model registration request] A ceiling frame 2 is attached to a lower flame tube 1 of a monotube oil combustor, a central opening 6 is provided on the upper surface of the ceiling frame 2, and an opening edge 6a extending into the central opening 6 extends downward from the upper surface of the ceiling frame 2. The cylindrical part 6b and the opening edge 6a are formed into an L-shaped cross section, and the outer peripheral edge of the top plate 4 located above the central opening 6 is bent downward to form a cylinder. A cylindrical flange 3 having a smaller diameter than the shaped part 6b is formed, and an upper flame tube 5 inscribed in the cylindrical flange 3 is provided between the top plate 4 and the opening edge 6a, and the upper flame tube 5 is made detachable. Flame tube structure of an oil combustor.