JP6114165B2 - 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 this type, when the heating capacity of the combustion cylinder is made higher, the tip of the fuel core 103 provided so as to be movable up and down is provided between the core guide outer cylinder 101 and the core guide inner cylinder 102. The amount of exposure exposed on the pan 104 is increased so that the amount of unburned gas generated from the fuel core 103 is increased, and the chimney effect can be obtained even when the flame generated in the secondary combustion chamber 105 increases. Since it is necessary to increase the height of the combustion ring 106, as shown in FIG. 2, the height of the inner cylinder 107 is higher than that of the middle cylinder 108 and the glass outer cylinder 109, and the height of the combustion ring 106 is further increased. In some cases, a secondary combustion chamber 105 is formed on the outer side of the upper portion of the inner cylinder 107 and the inner side of the combustion ring 106. (For example, see Patent Document 1)

  As a result, even if the amount of combustion air flowing up between the intermediate cylinder 108 and the glass outer cylinder 109 and flowing into the secondary combustion chamber 105 increases, the inner cylinder 107 also rises, so that the inner cylinder 107 rises. Since the combustion air flowing in the secondary combustion chamber 105 also increases, the combustion air in the secondary combustion chamber 105 is balanced, and the flame generated in the secondary combustion chamber 105 does not fluctuate, and the secondary combustion chamber The flame generated at 105 does not come into contact with the flame expansion plate 111 erected on the lid 110 at the upper end of the inner cylinder 107, and the temperature of the flame does not decrease, so that a large amount of soot adheres to the flame expansion plate 111. Even though the structure is extremely simple, primary combustion and secondary combustion are always performed in one combustion cylinder, and complete combustion is always achieved, thereby preventing unburned gas from being released into the room. Can always be used with confidence.

JP 2009-180485 A

  By the way, in this conventional one, the lower end of the combustion ring 106 is almost the same height as the outer cylinder holder 112 that closes the upper part between the middle cylinder 108 and the glass outer cylinder 109, so that the upper end portion of the middle cylinder 108 is the glass outer cylinder. 109, the upper end portion of the middle cylinder 108 is in contact with the outer cylinder presser 112 that rises between the middle cylinder 108 and the glass outer cylinder 109 and is cooled by the combustion air flowing into the secondary combustion chamber 105. For this reason, the temperature of the upper end portion of the middle cylinder 108 in the vicinity thereof is lowered and becomes darker than the red color near the center of the middle cylinder 108, so that the upper end portion of the cylinder 108 is viewed when the combustion cylinder is viewed. There was a problem that the dark-colored part of the room worsened the feeling of heating.

  Therefore, if the lower end of the combustion ring 106 is lengthened so as to hide the dark color portion of the upper end portion of the middle cylinder 108, the glass outer cylinder is inserted into the gap 113 formed between the combustion ring 106 and the outer cylinder holder 112. There is a problem that the air that has risen up the outer periphery of 109 becomes difficult to flow in, and the air supplied to the secondary combustion chamber 105 as secondary air decreases.

  In order to solve the above-mentioned problems, in claim 1 of the present invention, an inner cylinder and an inner cylinder having a large number of small holes, an outer glass outer cylinder, and an outer cylinder base on which the outer glass cylinder is placed. Further, 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 middle cylinder, and the primary between the inner cylinder and the middle cylinder. In addition to forming a combustion chamber, the inner cylinder is taller than the middle cylinder, and is supported by a lid at the upper end of the inner cylinder and extends outward from the inner cylinder and the glass outer cylinder to a larger diameter than the inner cylinder. An oil combustion is provided with a flame expansion plate, and further provided with a combustion ring standing higher than the flame expansion plate at the upper end of the glass outer cylinder, and a secondary combustion chamber is formed by the outer side of the upper part of the inner cylinder and the inner side of the combustion ring In the combustion cylinder of the appliance, the lower end of the combustion ring is set so as to cover the upper end portion of the glass outer cylinder around the upper end portion of the middle cylinder. Rutotomoni, in which the air intake hole through which air flows to the position of the formed gap between the outer cylinder holding a burning ring provided in the combustion ring.

  According to a second aspect of the present invention, in the first aspect of the present invention, the air intake hole is provided in the combustion ring so as to be positioned at the narrowest portion in a gap formed between the cylinder presser and the combustion ring.

  According to the first aspect of the present invention, the lower end of the combustion ring is provided so as to cover the upper end portion of the glass outer cylinder around the upper end portion of the middle cylinder, and the gap formed between the outer cylinder retainer and the combustion ring is provided. Since the combustion ring is provided with an air intake hole through which air flows into the position, the dark colored portion of the upper end portion of the middle cylinder 108 is not covered with the combustion ring, and the heating feeling is not impaired even when the combustion cylinder is viewed. At the same time, the air flowing in from the air intake hole merges with the air rising between the middle cylinder and the glass outer cylinder and is supplied as secondary air to the secondary combustion chamber to promote secondary combustion and complete combustion. It can be achieved.

According to a second aspect of the present invention, the air intake hole is provided in the combustion ring so as to be positioned in the narrowest portion of the gap formed between the outer cylinder holder and the combustion ring. Air from the outer periphery of the glass outer cylinder can be drawn in efficiently from the air intake hole provided in the part where the flow speed of the warm air is fast, and from the primary combustion chamber formed between the inner cylinder and the middle cylinder It is possible to prevent the unburned gas flowing into the gap formed between the outer cylinder holder and the combustion ring from flowing out of the combustion cylinder through the air intake hole of the combustion ring.

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.

Next, a combustion cylinder of an oil burning appliance according to the present invention will be described with reference to an embodiment shown in 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. Between the flange portion 8 of the cylinder 7, there is an air inflow interval 14.

  A through hole 15 is formed in the upper part of the outer cylinder base 12 and is larger than the outer diameter of the middle cylinder 11 and through which the middle cylinder 11 containing the inner cylinder 10 passes. Air that has passed through the gap 14 flows through the gap 16 between the inner cylinder 10 and the middle cylinder 11, and the fuel core 6 is positioned between the inner cylinder 10 and the middle cylinder 11 as a primary combustion chamber 17 on the core guide cylinder 1. It is what was done.

  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. The lower end portion of the combustion ring 27 reaches a position of about 23 mm downward from the position of the outer cylinder retainer 21, and the upper end portion of the middle cylinder 11 is arranged so that it cannot be seen from the outside. An appropriate gap 30 of about 5 mm is formed between the glass outer cylinder 18 and the combustion ring 27, and the upper portion of the gap 30 is narrowed by the outer cylinder holder 21. The distance of the gap 30 between 21 and the combustion ring 27 is approximately 3 mm.

  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.

  Reference numeral 37 denotes a plurality of air intake holes having a diameter of 2 mm provided at predetermined intervals around the entire periphery of the lower portion of the combustion ring 27, and are formed so as to be positioned in a narrowed portion above the gap 30.

Next, the operation of this embodiment will be described.
Now, if the fuel core 6 is ignited by a known ignition means (not shown), combustion starts in the primary combustion chamber 17 in the combustion cylinder 9, and this combustion occurs between the inner cylinder 10 and the inner cylinder 11. 10 is performed 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 heat state is directly or through the glass outer cylinder 18 or a reflector (not shown). The radiant heating is performed by the reflection.

  At this time, the portion from the upper end of the middle cylinder 11 to about 23 mm downward is lower in temperature and darker than the lower portion, but the lower end of the combustion ring 27 is not visible from the outside. Since the portion surrounds the dark-colored portion, when the combustion cylinder is viewed when radiant heating is performed, only a bright red hot color can be seen, and the heating feeling can be increased.

  In addition, the combustion gas that has risen in the primary combustion chamber 17 while causing the middle cylinder 11 to heat red 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, where a large space is formed. In addition, the rise is suppressed by the flame expansion plate 25, the flow velocity is slow, and the space between the middle cylinder 11 and the glass outer cylinder 18 is closed by the outer cylinder holder 21, but the middle cylinder 11 of the outer cylinder holder 21 is closed. Since the air holes 22 having a diameter of 5 mm are formed at equal intervals on the entire circumference between the glass outer cylinder 18 and the glass outer cylinder 18, the air that has risen between them is formed as secondary air from the air holes 22. While being supplied to the secondary combustion chamber 31, a narrowed portion at the upper portion of the gap 30 from the air intake hole 37 of the combustion ring 27, that is, at a distance of about 3 mm between the outer cylinder holder 21 and the combustion ring 27. Into the secondary combustion chamber 31 It is intended to be.

  At this time, since the flow velocity of air is high in the narrow portion at the top of the gap 30, air flows around the combustion ring 27 from the air intake hole 37 of the combustion ring 27 so that the air is efficiently drawn. It can be taken in and promotes combustion in the secondary 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, 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.

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 37 Air intake hole

Claims (2)

  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. The outer core is supported by an outer cylinder holding member, a fuel core is positioned between the inner cylinder and the middle cylinder, a primary combustion chamber is formed between the inner cylinder and the middle cylinder, and the inner cylinder is taller than the middle cylinder. In addition, a flame expansion plate is provided at the upper end of the inner cylinder and supported by the lid so as to extend outward from the diameter of the inner cylinder above the middle cylinder and the glass outer cylinder, and further to the upper end of the glass outer cylinder. A combustion cylinder of an oil combustion appliance having a combustion ring standing higher than a flame plate and forming a secondary combustion chamber between the outer side of the upper part of the inner cylinder and the inner side of the combustion ring, wherein the lower end of the combustion ring is the upper part of the middle cylinder Is provided so as to cover the upper end portion of the glass outer cylinder around the outer cylinder and is formed between the outer cylinder holder and the combustion ring. Combustion cylinder of the oil burner to air to the position of the gap, characterized in that the air intake holes flowing provided into the combustion ring.   2. The combustion cylinder of an oil combustion appliance according to claim 1, wherein the air intake hole is provided in the combustion ring so as to be positioned at a narrowest portion in a gap formed between the cylinder holder and the combustion ring.

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