JP2625901B2 - Liquid heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a liquid-fuel combustion device such as a light-core oil stove used for home heating and the like, and in particular, significantly reduces the amount of combustion. The invention relates to an adjustable combustion device.

(Prior art) Conventionally, in a wick type oil stove, the amount of protrusion of the wick was constant, and it was difficult to adjust the amount of combustion.
After that, by providing a non-combustible gas characteristic, particularly a control flow area formed between the lamps in an allowable range where the CO / CO ₂ does not deteriorate, in the control fluid blocking the bottom surface, a high concentration of CO leaked into the control area is provided. There has been proposed a combustion apparatus in which unburned gas containing is shielded by a clean air flow supplied above the inner flame tube, thereby preventing the unburned gas from being directly released into the atmosphere.

However, in the structure of such a combustion device, it is difficult for the air required for combustion to be supplied from the inside of the inner flame tube into the combustion chamber due to the fluid control provided inside the inner flame tube, The amount of air corresponding to the changing amount of vaporized gas is not supplied, and an unstable combustion state is likely to occur. In particular, in the case of strong combustion in which the projection amount of the lamp core is increased, the amount of air tends to be insufficient with respect to the amount of vaporized gas, and the amount of heat generated tends to decrease.

(Problems to be Solved by the Invention) In the above prior art, unburned gas containing high-concentration CO leaked into the inner flame tube at the time of weak combustion in which the protrusion amount of the light core is reduced is directly discharged to the atmosphere. To prevent
Since the fluid is provided inside the inner flame cylinder, it is difficult to supply appropriate air in accordance with the amount of vaporized gas, and there is a problem that an unstable combustion state and a decrease in the calorific value are likely to occur.

Therefore, the present invention prevents the rapid deterioration of the combustion characteristics during weak combustion and enables the supply of air corresponding to the amount of the vaporized gas, thereby having a good and stable combustion state and a significant combustion state. It is an object of the present invention to provide a liquid fuel combustion device capable of adjusting the amount of combustion.

[Structure of the Invention] (Means for Solving the Problems) The present invention is provided with a wick raising mechanism 44 for raising the wick 13 to the combustion area in conjunction with the movement of the operating body 52, and the outer flame cylinder 21 and the inner flame cylinder are provided. And an outer cylinder 33 and an inner cylinder 32 having air supply holes 34 and 35 at corresponding positions on the respective sides, and the outer cylinder 33 or the inner cylinder 32 is provided. Tube 32
Air adjustment cylinder 31 made expandable by moving up and down
Is provided in the inner flame tube 16 of the combustion tube 14, and an air adjusting expansion / contraction mechanism that expands / contracts the air adjustment tube 31 in conjunction with the movement of the operating body 52.
45 is provided, and as the lamp core 13 is lowered by the operation of the operation body 52, the air adjusting cylinder 31 is extended, and the air supply holes 34, 35 gradually become incompatible and closed, and the lamp core 13 is closed. The air adjusting cylinder 31 contracts as it rises, and the air supply holes 34, 35 are gradually opened to correspond to each other.

(Operation) According to the present invention, the light core is operated by operating the operation body 52 with the above configuration.
At the time of weak combustion in which the protrusion amount of the thirteen is reduced, the air adjusting cylinder 31 extends and the air supply holes 34 and 35 are closed. As a result, the unburned gas leaked from the inside of the combustion chamber 28 formed between the outer flame cylinder 21 and the inner flame cylinder 16 into the inner flame cylinder 16 extends to form the air supply holes 34,3.
5 is introduced between the closed air control cylinder 31 and the inner flame cylinder 16, and this unburned gas is mixed with clean air supplied upward through the air control cylinder 31, and The fuel is supplied from the vicinity of the upper end into the combustion chamber 28 to promote combustion. Also,
As the protrusion amount of the light core 13 is increased by the operation of the operation body 52, the air adjusting cylinder 31 is reduced in conjunction with this, and the air supply holes 34, 35 are gradually opened to correspond to each other, and are generated from the light core 13. An appropriate amount of air corresponding to the amount of vaporized gas is supplied from the air supply holes 34 and 35 of the air control cylinder 31 into the combustion chamber 28,
A stable combustion state is obtained. Further, in the case of strong combustion in which the projection amount of the lamp core 13 is increased by operating the operation body 25, the air supply holes 34 and 35 are fully opened and a large amount of air is supplied, so that the amount of heat generated increases.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 3, reference numeral 1 denotes a base on which a fixed tank 2 is fixed via a support frame (not shown). On one side of the upper surface of the fixed tank 2, a fuel tank (not shown) for supplying a liquid fuel such as kerosene while always maintaining a constant level in the fixed tank 2 is detachably mounted.

Further, on the other side above the fixed tank 2, a combustion section 3 is provided. Next, the configuration of the combustion unit 3 will be described with reference to FIGS.

An opening 4 is formed on the other upper side of the fixed tank 2, and a substantially cylindrical burner basket 6, whose diameter is reduced at the upper portion, is fixed around the opening 4 via a step 5. An upper portion of the burner basket 6 has a stepped portion 7 extending outward, and a top end of the burner basket 6 is formed with a flanged fire tray portion 8. The burner basket 6 is provided with a large number of air holes 9 located between the stepped portion 7 and the fire plate portion 8. In addition, a cylindrical core guide 10 is integrally erected on the inner bottom surface of the fixed tank 2, and the upper portion of the core guide 10 is opposed to the upper portion of the burner basket 6 while holding a small problem from the inside. With
A core guide cap 12 is provided on the upper end surface of the burner basket 6 at a lower portion of the fire tray 8, facing the step 7, having a fire tray 11 and partially open. .

A cylindrical light core 13 made of non-combustible fiber is supported between the burner basket 6 and the core guide 10 so as to be vertically movable.
The lower part is always immersed in the liquid fuel in the fixed tank 2.

Further, a combustion tube 14 that covers the light core 13 is provided above the fire plates 8 and 11. Next, the configuration of the combustion cylinder 14 will be described.

A cylindrical inner flame tube 16 having a large number of air holes 15 is mounted on the fire tray portion 11 on the core guide 10 side. And
A rectifying plate base 18 having an air passage opening 17 formed on the upper end surface of the inner flame tube 16 is fixed, and a rectifying plate 19 is fixed on the rectifying plate base 18.

On the other hand, a large number of air holes 20 are located on the fire plate 8 of the burner basket 6 concentrically around the outer periphery of the inner flame tube 16.
The outer flame cylinder 21 having a cylindrical shape is mounted, and a glass holder 22 is fixed to an upper end portion of the outer flame cylinder 21 in a flange shape. A substantially cylindrical metal outer cylinder 23 is attached to the lower part of the outer flame cylinder 21 by a cross pin (not shown) concentrically located on the outer peripheral side thereof.
A glass outer cylinder 24 is mounted between 23 and the glass holder 22. In addition, a gap is formed between the lower end of the metal cylinder 23 and the fire plate 8 of the burner basket 6, and this gap forms an air intake port 25 that opens downward. At the upper end of the metal outer cylinder 23, a flange-shaped air regulating portion 27 is formed via a step portion 26.

The combustion cylinder 14 has a combustion chamber 28 formed between the inner flame cylinder 16 and the outer flame cylinder 21, and the outer flame cylinder 21 above the air regulating portion 27 of the metal outer cylinder 23 has a red heat. A portion 29 is formed, and the air hole 20 of the glowing portion 29 is formed with an opening ratio larger than the air hole 20 of the outer flame tube 21 and the air hole 15 of the inner flame tube 16 below the air regulating portion 27. I have.

In addition, a guide disk 30 partially open inside is fixed horizontally below the inner flame cylinder 16, and the inner circumference side of the inner flame cylinder 16 is disposed on the guide disk 30. The air adjusting cylinder 31 is provided concentrically with the air adjusting cylinder 31. The air adjusting cylinder 31 has an inner cylinder 32 and an outer cylinder 33, and a large number of large air supply holes 34, 35 are provided at corresponding positions on lower side surfaces of the inner cylinder 32 and the outer cylinder 33, respectively. The air supply holes 34 and 35 are provided so as to substantially correspond to the air regulating section 27. The lower end of the inner cylinder 32 is fitted and fixed to a step 36 formed upright on the guide disk 30, and a guide disk 38 having a number of air holes 37 is fixed to the upper end thereof. ing. On the other hand, a disk 40 having a large number of air holes 39 is fixed horizontally at the upper end of the outer cylinder 33, and the disk 40 is placed on the upper end of the inner cylinder 32. In a state where the air supply hole 34 of the inner cylinder 32 and the air supply hole 35 of the outer cylinder 33 are fully opened at corresponding positions, the outer cylinder 33 holds a slight gap on the outer peripheral side of the inner cylinder 32. Thus, the inner cylinder 32 is entirely surrounded. Further, a number of air holes 41 are provided around the guide disk 30 of the inner flame cylinder 16 so as to be located outside the inner cylinder 32.

Further, the air regulating cylinder 31 has a movable rod 42 at its center.
The movable rod 42 is provided vertically with the inner flame tube 16.
The guide disc 30 and the center of the guide disc 38 of the inner cylinder 32 are slidably penetrated, and the upper end thereof is penetrated through the center of the disc 40 of the outer cylinder 33 and locked. A snap ring 43 is provided at the protruding end of the disk 40, and is in a retaining state. Also, the lower end of the movable rod 42 is
Try to reach within 10.

Further, on the front side of the fixed tank 2, there are provided a wick raising / lowering mechanism 44 for moving the wick 13 up and down, and an air adjusting telescopic mechanism 45 for expanding and contracting the air adjusting cylinder 31 by moving the outer cylinder 33 up and down. ing. Next, these wick lifting mechanisms 44
The configuration of the air adjusting cylinder expansion / contraction mechanism 45 will be described.

A core vertical shaft 46 is rotatably and horizontally inserted through and supported by the fixed tank 2, and a pair of lifting plates 47 is fixed to the core vertical shaft 46 inside the fixed tank 2. The lifting plate 47 is provided at a right angle to the core vertical axis 46 and is located on both side surfaces of a cylindrical core holder 48 fixed to the outer peripheral surface of the lamp core 13. An L-shaped long groove 49 is formed at the tip of each lifting plate 47, and a core holder shaft 50 protruding from both side surfaces of the core holder 48 is engaged with the long groove 49. Core vertical axis
The wick 13 moves up and down in conjunction with the rotation of 46.

A support plate 51 is provided upright on the base 1 at a position rearward of one end of the core vertical shaft 46.
A base end of an operation lever 53, which is disposed in a direction perpendicular to the core vertical shaft 46 and has an operation knob 52 as an operation body at a distal end, is rotatably supported on the 51 so as to be vertically rotatable. Further, one end of an interlocking lever 54 provided in parallel with the operation lever 53 toward the base end of the operation lever 53 is fixed to one end of the core vertical shaft 46, and the other end of the interlocking lever 54 Has a shaft 55
Is fixed to the operation lever 53 side, and the shaft 55 is further engaged with the operation lever 53 in a long hole 53a formed at the distal end from the base support portion at the base end.
The operating lever 52 is operated by operating the operating knob 52.
When the lever 53 is turned up and down, the interlocking lever 54 is
The fulcrum pivots in the vertical direction, and the rotation of the interlocking lever 54 causes the core vertical shaft 46 to rotate, thereby causing the light core 13 to move up and down.

 Next, the configuration of the air adjusting cylinder expansion / contraction mechanism 45 will be described.

A horizontal portion 57a of a drive shaft 57 is supported on the base 1 at a lower side of the fixed tank 2 so as to be rotatable and horizontally via a shaft support member 56. This horizontal part 57a is the vertical axis of the core.
The horizontal portion 57a is provided with a bent portion 57b at the end of the horizontal portion 57a on the side of the operation lever 53. The bent portion 57b is formed to be bent in parallel with the operation lever 53, and the end of the bent portion 57b is further provided. An engaging portion 57c that engages with a lower portion of the operation lever 53 is bent at the portion. Further, the core guide 10 of the horizontal portion 57a
A bent portion 57d bent toward the center of the core guide 10 is provided at the end on the side, and an engaging portion 57e is bent at the end of the bent portion 57d. . On the other hand, a guide plate 58 having a part opened is fixed horizontally in the lead guide 10, and slides along a guide portion 12 a formed at the center of the guide plate 58 and the center of the lead guide cap 12. A drive rod 59 that penetrates the movable rod 42 and whose upper end is in contact with the lower end of the movable rod 42 is supported so as to be able to move up and down.A shift plate 61 having a long hole 60 is provided at the lower end of the drive rod 59. It is fixed.
An engaging portion 57e of the drive shaft 57 is engaged with the long hole 60 of the shift plate 61, and the drive rod 59 moves up and down in conjunction with the rotation of the drive shaft 57. ing.

A spring 62 is wound around the drive shaft 57,
One end of the spring 62 is engaged with the lower part of the bent portion 57b of the drive shaft 57, and the other end is locked on the base 1 to urge the drive shaft 57 to always rotate upward. . As a result, the engagement portion 57c of the drive shaft 57 is resiliently engaged with the operation lever 53 by the bias of the spring 62, and the operation knob 52 is operated to rotate the operation lever 53 upward. Then, the interlocking lever 54 pivots upward and the light core 13 descends, and the drive shaft 57 pivots upward by the bias of the spring 62 to raise the drive rod 59, and conversely pivots the operation lever 53 downward. Then, the interlocking lever 54 rotates downward and the wick 13 rises,
The drive shaft 57 rotates downward against the bias of the spring 62 to lower the drive rod 59.

 Next, the operation of the above configuration will be described.

First, the operation of the wick raising / lowering mechanism 44 and the air adjusting cylinder expansion / contraction mechanism 45 will be described.

When the operation knob 52 is pushed down as shown in FIGS. 2 and 4, the operation lever 53 pivots downward around the base shaft support portion, and the interlocking lever 54 moves up and down through the shaft 55. The lamp core 13 pivots downward with the shaft 46 as a fulcrum, the core vertical shaft 46 and the lifting plate 47 pivot clockwise integrally with the interlocking lever 54, and the lamp core 13 projects greatly above the fire tray 8. Further, with the rotation of the operation lever 53, the engagement portion 57 of the drive shaft 57 which is resiliently engaged with the operation lever 53 is provided.
When c is depressed, the drive shaft 57 is
Rotate downward against the bias of 2. And shift board 6
1 and the drive rod 59, the long hole 60 of the shift plate 61 and the engaging portion 5
7e, the movable rod 42 and the outer cylinder 33 of the air adjustment cylinder 31 descend by their own weight, and the air adjustment cylinder
31 is reduced, the outer cylinder 33 entirely surrounds the inner cylinder 32, and the air supply holes 35 of the outer cylinder 33 and the air supply holes 34 of the inner cylinder 32 are in corresponding positions and are fully opened. It becomes a strong combustion state.

Here, for example, when a heater (not shown) is energized and brought into contact with the projected light core 13, the light core 13 is ignited and combustion starts. When the operation knob 52 is pushed up during this combustion operation to adjust the amount of combustion as shown in FIGS. 1 and 3, the operation lever 53 rotates upward and the interlocking lever 54 rotates upward, and The vertical shaft 46 and the lifting plate 47 rotate counterclockwise, and the projection of the light core 13 gradually decreases. Further, with the upward rotation of the operation lever 53, the drive shaft 57 is rotated upward by the bias of the spring 62, and the shift plate 61 and the drive rod 59 are raised, whereby the drive rod 59 is moved. The outer cylinder 33 is raised integrally with the movable rod 42 by pushing up the movable rod 42. At this time, the air supply hole of the outer cylinder 33
The air supply hole 34 of the inner cylinder 32 moves to the non-corresponding position, and only a part thereof is opened. That is, as the amount of projection of the lamp core 13 decreases by the operation of the operation knob 52, the outer cylinder 33 gradually rises, so that the air supply holes 34 and 35 gradually reduce the overlapping portion and the opening amount decreases. Wick
As the amount of projection of 13 increases, the outer cylinder 33 gradually descends, so that the air supply holes 34 and 35 gradually overlap and the opening amount increases. In this way, the opening amounts of the air supply holes 34 and 35 that are adapted to the protrusion amount of the lamp core 13 are obtained. Then, as shown in FIG. 1 and FIG.
When the projecting amount of the lamp core 13 is reduced, that is, in a state where the upper end of the light core 13 slightly projects from the fire tray part 11, the outer cylinder 33 rises about 1/3 of its entire length, and the air adjusting cylinder 31 becomes almost the entire length of the inner flame cylinder 16. Stretch to more than 2/3 height. This allows air supply holes 3
The positions 4 and 35 are non-corresponding positions, and the air supply hole 34 is almost closed by the side wall of the outer cylinder 33 and the air supply hole 35 is almost closed by the side wall of the inner cylinder 32, so that a weak combustion state is achieved.

To extinguish a fire, the operation knob 52 is pushed up strongly. Then, the core up-down shaft 46 and the lifting plate 47 are pivoted integrally and counterclockwise via the interlocking lever 54, and the wick 13 descends and sinks, thereby extinguishing the fire. In this case, the angle at which the drive shaft 57 rotates upward by the urging of the spring 62 depends on the long hole 60 of the shift plate 61 and the engagement portion 57e.
Therefore, the engagement portion 57c is separated from the operation lever 53.

 Next, the combustion action will be described.

When the light core 13 is ignited, combustion starts, and the high-temperature combustion gas generated by the combustion rises in the combustion chamber 28 to generate a draft force, and the combustion air flows into the air holes 15 of the inner flame tube 16 and the air The gas is supplied from the hole 20 into the combustion chamber 28, and the combustion is continued. At this time, the combustion air supplied into the combustion chamber 28 from the air hole 15 of the inner flame tube 16 is supplied to the air hole 41 of the guide disc 30, the air holes 37 and 39 at the upper part of the air adjustment tube 31, and the air at the side. Supply hole 34,
35, and from the air hole 20 of the outer flame tube 21 to the combustion chamber 28.
The combustion air supplied to the inside is the air intake of the metal outer cylinder 23
Supplied from 25.

Then, when the protruding amount is greater intense combustion of wick 13, as shown in FIG. 2, the flame F ₁ is formed on the upper end of the combustion chamber 28, air supplied from the inside of the inner flame tube 16 as indicated by the arrow A large amount of air is supplied from the air holes 41 of the guide disk 30, the air supply holes 34, 35 which are fully opened at the corresponding positions of the reduced air conditioner cylinder 31, and the air holes 37, 39 on the upper part of the air conditioner tube 31, and are stable and maintaining the combustion state, unburnt gas that has risen to the combustion chamber 28 can burn, it is completely burned by the flame F ₁ formed further combustion chamber 28 upper end.

Further, when the protruding amount is small weak combustion wick 13 as shown in FIG. 1, the flame F ₂ is formed in a state that falls into the combustion chamber 28, air supplied from the inside of the inner flame tube 16, Because the air adjusting cylinder 31 extends and the air supply holes 34 and 35 are closed,
As shown by the arrow, a small amount is supplied from the air hole 41 of the guide disk 30 and a large amount is supplied from the air hole 39 on the upper part of the air adjustment cylinder 31 in the extended state. And the air hole at the lower part of the inner flame tube 16
The air supplied from 15 to the combustion chamber becomes a mixed gas with the vaporized fuel and moves up the combustion chamber 28. At this time, since the space 63 between the inner flame cylinder 16 and the extended air regulating cylinder 31 becomes negative pressure by the air supplied from above the air regulating cylinder 31, a part of the mixed gas is 16 The air flows into the space 63 inside and rises in the space 63 while being mixed with the air from the air holes 41 of the guide disk 30, and is further supplied near the upper end of the air adjustment tube 31 above the air adjustment tube 31. is supplied from the air hole 15 of the inner flame tube 16 again and mixed with air that is into the combustion chamber 28, the flame holding is formed in this portion is completely combusted further flame F ₂ which is formed above . In this way, unburned gas containing high concentrations of CO is prevented from being directly released into the atmosphere, and CO / C
Prevents O ₂ from deteriorating and generating odor.

Further, since the air supply holes 34 and 35 of the air adjusting cylinder 31 are opened in an amount corresponding to the amount of projection of the light core 13, the air supply holes 34 and 35 are burned into the combustion chamber 28 in an appropriate amount corresponding to the amount of vaporized gas generated. Air is supplied, a stable combustion state is obtained, and at the time of strong combustion, the air adjustment cylinder 31 contracts and the air supply hole 3
4,35 are fully open and a large amount of air is supplied, resulting in a high calorific value.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the expansion and contraction of the air adjustment cylinder may be such that the movable rod is locked to the inner cylinder side, and the inner cylinder is moved up and down by removing the disk of the outer cylinder. The number, shape, and the like of may be appropriately selected.

[Effects of the Invention] The present invention includes an outer cylinder and an inner cylinder each having an air supply hole at a position corresponding to each side, and an air-conditioning cylinder that can be expanded and contracted by vertically moving the outer cylinder or the inner cylinder. Is provided in the inner flame cylinder of the combustion cylinder, and an air adjustment cylinder expansion / contraction mechanism that expands and contracts the air adjustment cylinder in conjunction with the movement of the operation body is provided. As the core light is lowered by operating the operation body, the air adjustment cylinder is provided. Is extended, the air supply hole gradually becomes incompatible and closed, and as the wick rises, the air adjustment tube shrinks so that the air supply hole gradually opens to correspond to each other. By doing so, it is possible to prevent a sudden deterioration of the combustion characteristics during weak combustion, and to supply air commensurate with the amount of vaporized gas. Can make adjustments A liquid fuel combustion device can be provided.

[Brief description of the drawings]

1 is a cross-sectional view of a combustion section showing a weak combustion, FIG. 2 is a cross-sectional view of a combustion section showing a strong combustion, FIG. 3 is a partially cutaway perspective view of the whole showing a weak combustion, FIG. FIG. 3 is a partially cutaway perspective view of the whole showing strong combustion. 13… Light core 14… Combustion cylinder 16… Inner flame cylinder 21 …… Outer flame cylinder 31 …… Air adjustment cylinder 32 …… Inner cylinder 33 …… Outer cylinder 34,35 …… Air supply hole 44 …… Light core elevating Mechanism 45 ……………………………………………………………………………………………………………………………………………………………………….

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-101518 (JP, A) JP-A-60-101517 (JP, A) JP-A-58-181145 (JP, A)

Claims (2)

(57) [Claims] 1. A wick which is immersed in a lower part in a liquid fuel and which can move up and down, a wick raising / lowering mechanism which raises the wick to a combustible region in conjunction with movement of an operation body, an outer flame tube and an inner flame tube And a combustion cylinder that covers the light core, and an outer cylinder and an inner cylinder that are provided in the inner flame cylinder and have air supply holes at corresponding positions on the respective side portions. An air adjusting cylinder that can be expanded and contracted by moving the operating body up and down, and an air adjusting cylinder expanding and contracting mechanism that expands and contracts the air adjusting cylinder in conjunction with the movement of the operating body, and lowers the light core by operating the operating body. In accordance with this, the air adjusting cylinder extends and the air supply hole gradually becomes incompatible and closes,
Oil stoves have been generalized in which the amount of protrusion of the wick can be adjusted so that the amount of combustion can be adjusted when the wick is raised. However, since the amount of combustion in this type of oil stove can only be adjusted to 90-80% of the maximum amount of combustion, it is necessary to extinguish the fire when the room temperature rises moderately or to open the window and adjust the room temperature. There were problems in terms of nature and economy. And, the reason why the amount of combustion can be adjusted only a little in this way is that during the weak combustion in which the projection amount of the light core is reduced, a fire is formed to descend into the combustion chamber, thereby leaking from the combustion chamber into the inner flame tube of the combustion cylinder. High concentration of CO
This is because unburned gas containing carbon dioxide is directly released into the atmosphere to increase the total hydrocarbon, which causes a problem that CO / CO ₂ is deteriorated and odor is generated. Therefore, as shown in JP-A-62-108909, the inner flame of the combustion cylinder extends from near the position facing the light core to a position below the upper end of the inner flame, and The liquid fuel combustion device according to claim 1, wherein the air adjusting cylinder is reduced in size according to the cylinder, and the air supply holes are gradually opened to correspond to each other. 2. A liquid fuel combustion apparatus according to claim 1, wherein said air regulating cylinder has a height of at least about 2/3 of said inner flame cylinder at the time of said maximum extension.