JP5127486B2 - Burning cylinder of oil burning equipment - Google Patents

Description

  The present invention relates to a multi-cylinder type combustion cylinder used in an oil combustor such as an oil stove.

Conventionally, in a combustion cylinder of this kind of oil burning appliance, an inner cylinder 111 and an intermediate cylinder 112 having at least a large number of small holes 120, a glass outer cylinder 116 on the outer side thereof, and the glass outer cylinder 116 are placed. The outer cylinder base 113, and the upper end of the glass outer cylinder 116 is supported by an outer cylinder retainer 119 connected to the upper end of the middle cylinder 112 so that the inner cylinder 111 is lower than the inner cylinder 112, and At the upper end of the cylinder 111, a flame expansion plate support cylinder 123 standing from the cover body 122 and projecting outward, and supported by the flame expansion plate support cylinder 123, above the middle cylinder 112 and the glass outer cylinder 116, the inner cylinder 111 is provided. A flame expansion plate 124 that is larger than the outer diameter of the flame spreader plate 124 is provided. The inner tube 111 is surrounded by a small hole 118 in the middle tube 112, a secondary air hole 127 in the flame spread plate support tube 123, and the flame spread plate 124. A secondary combustion chamber 121 is formed, The upper end of the outer tube 116, which high upright and secondary air from the baffle 124 is provided with a hole or combustion ring 128 forming the gap flows is known. (For example, see Patent Document 1)
Japanese Patent No. 3715255

  As a result, the combustion performed between the inner cylinder 111 and the inner cylinder 112 proceeds while rising, and the flow rate of the unburned gas is reduced in the upper secondary combustion chamber 121, and the inner cylinder 111 side and the outer cylinder Secondary combustion is performed with the supply of secondary air from one side, and fresh air for secondary combustion is also obtained from the outside by the combustion ring 128.

  By the way, in this conventional type, when a combustion cylinder with higher heating capacity is used, the tip of the fuel core provided so as to be movable up and down between the core guide outer cylinder and the core guide inner cylinder is exposed on the pan. Increase the amount to increase the amount of unburned gas generated from the wick, and increase the height of the combustion ring so that the chimney effect can be obtained even if the flame generated in the secondary combustion chamber increases. In this case, the combustion air flowing into the secondary combustion chamber from the secondary air hole formed in the flame expansion plate support cylinder rising in the inner cylinder and standing on the lid at the upper end of the inner cylinder is necessary. Combustion air and combustion gas rising between the inner cylinder and the middle cylinder, and combustion air flowing between the inner cylinder and the glass outer cylinder and flowing from the small hole in the upper part of the middle cylinder to the secondary combustion chamber increase. The combustion air is unbalanced, and the flame generated in the secondary combustion chamber fluctuates. A large amount of soot adheres to the flame expansion plate when the flame generated in the combustion chamber comes into contact with the flame expansion plate supported by the flame expansion plate support cylinder standing on the lid at the upper end of the inner cylinder and the temperature of the flame decreases. There was a problem.

The present invention focuses on this point and solves the above-mentioned problems. In particular, in claim 1, the inner cylinder and the middle cylinder having a large number of small holes, the outer glass outer cylinder and the outer glass cylinder are provided. The outer cylinder base is mounted, and the upper end of the glass outer cylinder is supported by an outer cylinder presser connected to the upper end of the middle cylinder, and a fuel core is positioned between the inner cylinder and the inner cylinder. in combustion cylinder oil burner forming a primary combustion chamber between the cylinder and the middle cylinder, the outer larger than the diameter of the inner cylinder before Symbol inner tube the upper end in above the middle tube and the glass outer cylinder is supported on the lid A flame expansion plate extending in the direction is provided, and further, a combustion ring standing higher than the flame expansion plate is provided at the upper end of the glass outer cylinder, and a secondary combustion chamber is formed between the outer side of the upper part of the inner cylinder and the inner side of the combustion ring. thereby forming the height of the inner cylinder is provided above the middle cylinder and the glass outer tube, the upper end of the inner cylinder combustion ring But on the height of lower height of the baffle from the upper end.

  Further, in the combustion cylinder of the oil combustion appliance according to claim 2, in particular, in the combustion cylinder of the oil combustion appliance of claim 1, the inner diameter of the combustion ring is larger than the outer diameter of the glass outer cylinder, and the lower end of the combustion ring is It is provided so as to cover a part of the upper part of the glass outer cylinder, and in the secondary combustion chamber, combustion gas and secondary air rising between the inner cylinder and the middle cylinder, and the middle cylinder and the glass outer cylinder The secondary air that rises in the air and flows in from the vent hole formed in the outer cylinder presser and the secondary air that rises in the inner cylinder and flows in from the small hole in the inner cylinder are supplied.

  According to a third aspect of the present invention, there is provided a combustion cylinder of the oil combustion appliance according to claim 3, in particular, in the combustion cylinder of the oil combustion appliance of claim 2, wherein a rectifying plate having a hole portion formed in an inner upper portion of the inner cylinder is provided. The plate is provided so as to be positioned at substantially the same height as the position of the outer cylinder presser.

  Further, in the combustion cylinder of the oil combustion appliance according to claim 4, in particular, in the combustion cylinder of the oil combustion appliance of claim 3, the lid at the upper end of the inner cylinder is formed with a plurality of small holes, and the flame expansion A plurality of air holes are provided at a position facing the fuel core at the front end of the plate.

According to the first aspect of the present invention, the height of the inner cylinder is higher than that of the middle cylinder and the glass outer cylinder, and the upper end thereof is lower than the upper end of the combustion ring by the height of the flame spreading plate, and the height of the combustion ring is further increased. Since the secondary combustion chamber was formed at the outer side of the upper part of the inner cylinder and the inner side of the combustion ring, the combustion air rising between the inner cylinder and the middle cylinder was increased by increasing the height of the combustion ring. Even if the combustion gas rises between the middle cylinder and the glass outer cylinder and the combustion air flowing from the small hole at the top of the middle cylinder to the secondary combustion chamber increases, the inside of the inner cylinder rises and the lid at the upper end of the inner cylinder The combustion air that flows into the secondary combustion chamber from the small holes formed in the upper peripheral surface of the inner cylinder and the combustion air flowing to the secondary combustion chamber also increases, so that the combustion air in the secondary combustion chamber can be balanced, A flame expansion plate in which the flame generated in the secondary combustion chamber does not fluctuate, and the flame generated in the secondary combustion chamber stands on the lid at the upper end of the inner cylinder Because there is no contact, and the temperature of the flame does not decrease, a large amount of soot does not adhere to the flame expansion plate. Further, as in the past, the flame expansion plate is erected on the lid at the upper end of the inner cylinder. While eliminating the need for a flame expansion plate support cylinder that supports the engine and reducing the number of parts, primary combustion and secondary combustion are always performed in one combustion cylinder to achieve complete combustion. It prevents the release of fuel gas into the room and can always be used with confidence.

  Further, according to the combustion cylinder of the oil combustion appliance according to claim 2 of the present invention, the secondary air flowing into the secondary combustion chamber from the gap between the lower end of the combustion ring and the outer cylinder holder, Combustion gas and secondary air that rises between the cylinder and the middle cylinder, secondary air that rises between the middle cylinder and the glass outer cylinder and flows into the outer cylinder presser, and the inner cylinder The secondary air is supplied through the small holes of the inner cylinder and rises in the inner cylinder. Therefore, in the secondary combustion chamber, two large spaces formed by the inner side of the combustion ring and the outer side of the upper part of the inner cylinder are provided. Secondary air is supplied from the entire circumference so as to surround the secondary combustion chamber, and mixing with the combustion gas is performed smoothly, so that complete combustion is always achieved with good combustion and unburned gas is released into the chamber. There is nothing to do.

  Further, according to the combustion cylinder of the oil burning appliance according to claim 3 of the present invention, the rectifying plate having a hole formed in the inner cylinder inner upper portion is provided, and the rectifying plate is substantially the same height as the position of the outer cylinder holding member. Because the secondary air that has risen in the inner cylinder is located near the boundary between the primary combustion chamber and the secondary combustion chamber due to the resistance of the rectifying plate, the small hole in the inner cylinder Thus, since the air is blown out to the primary combustion chamber and the secondary combustion chamber near the boundary between the primary combustion chamber and the secondary combustion chamber, complete combustion is further promoted.

  According to the combustion cylinder of the oil burning appliance according to claim 4 of the present invention, a plurality of small holes are formed in the lid at the upper end of the inner cylinder, and at the position facing the fuel core at the tip of the flame expansion plate. Since a plurality of ventilation holes are provided, the secondary air that has risen inside the inner cylinder from the small hole in the lid is guided by the flame expansion plate and supplied from above the secondary combustion chamber. Thus, complete combustion is further achieved, and the fire extinguishing time can be shortened by letting unburned gas at the time of extinguishing escape from here through the vent holes of the flame expansion plate.

Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a core guide cylinder composed of a core guide outer cylinder 2 and a core guide inner cylinder 3 erected from the center of a fuel tank (not shown), and the upper ends of the core guide outer cylinder 2 and the core guide inner cylinder 3. Each has a step-like fire tray portion 4 and has a plurality of through holes 5 on the upper surface of the core guiding inner cylinder 3 for releasing air rising inward as combustion air.

A fuel core 6 is provided in the core guide cylinder 1 between the core guide outer cylinder 2 and the core guide inner cylinder 3 so as to be movable up and down, and its tip is exposed on the pan 4 when raised.
Reference numeral 7 denotes a support cylinder fixed to the outer periphery of the flame tray portion 4 of the core guide outer cylinder 2, and a flange portion 8 bent outward is formed at the upper end.

  9 is a cross pin 13 in which an inner cylinder 10 having a large number of small holes, an intermediate cylinder 11 having a large number of small holes on the outer side of the inner cylinder 10, an outer cylinder base 12 on the outer side of the inner cylinder 11, etc. The lower end of the inner cylinder 10 is placed on the pan 4 and the lower end of the middle cylinder 11 is placed on the pan 4, and is supported by the outer base 12. An air inflow interval 14 is provided between the flange portion 8 of the cylinder 7 and the inner cylinder 10 is built in the upper portion of the outer cylinder base 12 which is larger than the outer diameter of the middle cylinder 11. A through-hole 15 through which the middle cylinder 11 passes is formed. Air that has passed through the gap 14 flows into the gap 16 between the through-hole 15 and the middle cylinder 11, and further, the inner cylinder 10 and the middle cylinder 11 are separated from each other. A fuel core 6 is located between them, and this space is provided as a primary combustion chamber 17 on the core guide cylinder 1.

  The outer cylinder base 12 of the combustion cylinder 9 mounts and supports a glass outer cylinder 18 made of a heat-resistant heat-transmitting material having an outer diameter of 120 mm, a height of 130 mm and facing the upper portion of the middle cylinder 11.

  Further, the middle cylinder 11 uses a stainless steel plate having a diameter of 90 mm, a height of 190 mm, and a thickness of 0.2 to 0.6 mm. A large number of small holes 19 of ~ 2.0 mm are formed, and at the upper part which is at most ½ of the total length facing the upper glass outer cylinder 18, a horizontally long shape of 1.5 to 3.0 mm × 10 to 15 mm These small holes 20 are arranged in a staggered brick shape while partially polymerizing each other vertically, and the overall aperture ratio is 40 to 60%.

  Reference numeral 21 denotes an outer cylinder presser that closes the upper portion between the middle cylinder 11 and the glass outer cylinder 18, and fixes one end to the upper end of the middle cylinder 11 and extends the other end to the upper end of the glass outer cylinder 18. Between the middle cylinder 11 and the glass outer cylinder 18 that are supported by the upper cylinder holder 21 and are closed by the outer cylinder holder 21, vent holes 22 having a diameter of 3 mm are formed circumferentially at equal intervals. is there.

  The inner cylinder 10 is made of a stainless steel plate having a diameter of 65 mm, a height of 235 mm and a diameter of 0.3 to 0.8 mm. A plurality of small holes 23 having a diameter of 1.2 to 2.0 mm are formed on the entire circumference. Is tall and has an upper part protruding upward from the outer cylinder holder 21.

  The inner cylinder 10 is provided with a flame expansion plate 25 that is supported by a lid 24 provided at the upper end of the inner cylinder 10 and that is larger than the diameter of the inner cylinder 10 and smaller than the middle cylinder 11 and spreads outward. Further, a plurality of small holes 26 for supplying secondary combustion air from the inside of the inner cylinder 10 to the upper side of the lid body 24 are formed in the lid body 24.

  Reference numeral 27 denotes a cylindrical combustion ring provided outside the outer cylinder holder 21 so as to cover the flame expansion plate 25, and a locking part 29 formed on the upper surface of the outer cylinder holder 21 by three cut pieces 28 raised and raised. An appropriate gap 30 of 3 to 6 mm is formed between the outer cylinder holder 21 and the outer cylinder holder 21.

  The combustion ring 27 has a diameter of 130 mm and a height of 80 mm, and the upper part of the inner cylinder 10 is located substantially concentrically inside the combustion ring 27, and is a space formed by the inner side of the combustion ring 27 and the outer side of the upper part of the inner cylinder 10. As a result, the secondary combustion chamber 31 is formed, and the air rising on the outer periphery of the glass outer cylinder 18 is supplied as secondary air to the secondary combustion chamber 31 through the gap 30 to promote combustion.

  Reference numeral 32 denotes a plurality of vent holes provided at the front end portion of the flame spreader plate 25 at a position facing the fuel core 6. The circumferential portion of the flame spreader plate 25 is positioned directly above the fuel core 6. Since it becomes resistance to upward escape of unburned gas generated from the fuel core 6 at the time of fire extinguishing, by providing a vent 32 to prevent this, the unburned gas at the time of fire extinguishing is let out from here. It is intended to shorten time.

Reference numeral 33 denotes a guide plate provided at the inner lower portion of the inner cylinder 10, and supplies combustion air flowing in from below to the primary combustion chamber 17 at the upper end of the fuel core 6 and supplies combustion air upward through a central opening 34. Is.
Reference numeral 35 denotes a rectifying plate provided in the inner upper part of the inner cylinder 10, which rectifies in various hole portions 36 to supply combustion air upward, and to the primary combustion chamber 17 between the central inner cylinder 10 and the middle cylinder 11. Combustion air is supplied.

Next, the operation of this embodiment will be described.
When the fuel core 6 is ignited by a well-known ignition means (not shown), combustion is started in the primary combustion chamber 17 in the combustion cylinder 9, and this combustion is caused between the inner cylinder 10 and the middle cylinder 11. By being performed up to the upper end, the brick-shaped small hole 20 portion from the lower part to the middle of the middle cylinder 11 is favorably red-heated, and this red-heated state is directly or via a glass outer cylinder 18 on a reflector (not shown). By reflection, radiant heating is performed.

  In addition, the combustion gas that has risen in the primary combustion chamber 17 while making the middle cylinder 11 red-heated flows into the secondary combustion chamber 31 formed by the outer side of the upper part of the inner cylinder 10 and the inner side of the combustion ring 27, and here in the large space. At the same time, the flame expansion plate 25 suppresses the rise so that the flow rate is slow, and the space between the middle tube 11 and the glass outer tube 18 is closed by the outer tube presser 21. Since air vents 22 having a diameter of 3 mm are formed at equal intervals in the portion located between the glass outer cylinders 18, the air that has risen between them is formed as secondary air from the air vents 22. It is supplied to the next combustion chamber 31.

  Further, the air that has risen in the inner cylinder 10 from the small hole 26 of the lid body 24 is guided to the flame expansion plate 25, and the secondary air from above the secondary combustion chamber 31 is supplied. The air outside the combustion cylinder 9 is also supplied as the secondary air from the lower side to the upper side of the secondary combustion chamber 31 through the gap 30 of the combustion ring 27.

  At this time, the height of the inner cylinder 10 is higher than that of the middle cylinder 11 and the glass outer cylinder 18, and the upper end of the inner cylinder 10 is lower than the upper end of the combustion ring 27 by the height of the flame expansion plate 25, that is, the abbreviation of the combustion ring 27. Since the height of the combustion ring 27 is increased by being positioned up to the height of the third quarter, the combustion air and the combustion gas rising between the inner cylinder 10 and the middle cylinder 11, Even if the amount of combustion air that rises between the glass outer cylinders 18 and flows from the small holes 20 in the upper part of the middle cylinder 11 to the secondary combustion chamber 31 increases, the inside of the inner cylinder 10 rises and the lid 24 at the upper end of the inner cylinder 10. The combustion air flowing into the secondary combustion chamber 31 from the small holes 26 formed in the inner cylinder 10 and the small holes 23 formed in the entire upper peripheral surface of the inner cylinder 10 also increases, so that the combustion air in the secondary combustion chamber 31 is increased. There is a balance so that the flame generated in the secondary combustion chamber 31 does not fluctuate. The generated flame does not come into contact with the flame expansion plate 25 erected on the lid 24 at the upper end of the inner cylinder 10, and thus the temperature of the flame does not decrease, so that a large amount of soot does not adhere to the flame expansion plate 25. Is.

  In the secondary combustion chamber 31, secondary air is supplied from the entire circumference so as to surround the secondary combustion chamber 31 in a large space formed by the inside of the combustion ring 27 and the outside of the upper portion of the inner cylinder 10. Mixing with the combustion gas is performed smoothly so that complete combustion is always achieved with good combustion and no unburned gas is released into the room.

  Further, the combustion cylinder 9 of the present case has an extremely simple configuration while reducing the number of parts by eliminating the need for a flame expansion plate support cylinder that stands on the lid 24 at the upper end of the inner cylinder 10 and supports the flame expansion plate 25 as in the past. However, the primary combustion and the secondary combustion are performed in one combustion cylinder 9 so that complete combustion is always achieved, and release of unburned gas into the chamber is prevented, so that it can always be used with confidence.

  Further, in the combustion cylinder 9 of the present case, the combustion gas passing through the secondary combustion chamber 31 from the primary combustion chamber 17 smoothly flows out to the upper end of the combustion ring 27 without being obstructed by the flame expansion plate 25 compared to the conventional case. So, fire is extinguished quickly when extinguishing.

  Further, in the combustion cylinder 9 of the present case, since the rectifying plate 35 in the inner cylinder 10 is located at the boundary between the primary combustion chamber 17 and the secondary combustion chamber 31, that is, at substantially the same height as the outer cylinder presser 21, Combustion air that has risen in the cylinder 10 flows from the small hole 23 of the inner cylinder 10 located near the boundary between the primary combustion chamber 17 and the secondary combustion chamber 31 due to the resistance of the rectifying plate 35 to the primary combustion chamber 17. And the secondary combustion chamber 31 is blown out to the primary combustion chamber 17 and the secondary combustion chamber 31 in the vicinity of the boundary between the secondary combustion chambers 31, thereby promoting complete combustion.

1 is a cross-sectional view of a combustion cylinder with an embodiment of the present invention. Sectional drawing of the combustion cylinder which shows a prior art example.

Explanation of symbols

6 Combustion core 10 Inner cylinder 11 Middle cylinder 12 Outer cylinder base 17 Primary combustion chamber 18 Glass outer cylinder 21 Outer cylinder holder 24 Cover body 25 Flame expansion plate 27 Combustion ring 31 Secondary combustion chamber

Claims (4)

It consists of an inner cylinder and a middle cylinder with many small holes, an outer glass outer cylinder and an outer cylinder base on which the glass outer cylinder is placed, and the upper end of the glass outer cylinder is connected to the upper end of the middle cylinder. and while supporting an outer tubular retainer, in a combustion cylinder of the oil burner which forms the primary combustion chamber between the inner cylinder and the middle cylinder to position the燃芯between the inner cylinder and the middle cylinder, before Symbol At the upper end of the inner cylinder, there is provided a flame expansion plate supported by the lid body and extending outward from the inner cylinder and the diameter of the inner cylinder above the inner cylinder and the glass outer cylinder. A combustion ring which is erected, and forms a secondary combustion chamber between the outer side of the upper part of the inner cylinder and the inner side of the combustion ring, and the inner cylinder is provided higher than the middle cylinder and the glass outer cylinder, burning the upper end of the oil burner, characterized in that provided in the height of a low height of the baffle from the upper end of the combustion ring .   The inner diameter of the combustion ring is larger than the outer diameter of the glass outer cylinder, a gap is provided between the lower end of the combustion ring and the outer cylinder holder, and the secondary combustion chamber is provided between the lower end of the combustion ring and the outer cylinder holder. The secondary air flowing in through the gap between the inner cylinder and the middle cylinder, the combustion gas and secondary air rising between the inner cylinder and the middle cylinder, and the passage formed between the middle cylinder and the glass outer cylinder to form the outer cylinder presser 2. The oil burning appliance according to claim 1, wherein secondary air flowing in from the pores and secondary air rising in the inner cylinder and flowing in from the small holes of the inner cylinder are supplied. Combustion cylinder.   3. The oil according to claim 2, wherein a rectifying plate having a hole is formed in an inner upper portion of the inner cylinder, and the rectifying plate is provided so as to be positioned at substantially the same height as a position of the outer cylinder holding member. Combustion cylinder for combustion equipment.   The oil combustion according to claim 3, wherein a plurality of small holes are formed in the lid at the upper end of the inner cylinder, and a plurality of vent holes are provided at positions facing the fuel core at the tip of the flame expansion plate. The burning cylinder of the instrument.

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