JPS63131914A - Liquid fuel combustion equipment - Google Patents

Abstract

PURPOSE:To make the substantial control of combostion amount possible and prevent the thermal deformation of combustion cylinders, the generation of upflame, soot, and foul odor, and the deterioration of exhaust gas by a method wherein the combustion cylinders are divided into a plurality of the upper and lower parts and the up and down motion of a wick is linked to the combination and separation of a plurality of the combustion cylinders and the projecting amount of the wick is made small at the separation time of a plurality of the combustion cylinders. CONSTITUTION:When a control knob 120 is pushed down, a driving lever 123 rotates in the clockwise direction and a driving rod 126 pushes up a movable rod 49 and a comhustion cylinder 23 at the upper side, rises up and is separated from a combustion cylinder 22 at the lower side and the opening and closing body of the rod 49 is located at the inside of an air through hole 29 located at the connecting part between both the cylinders 22, 23 and closes nearly the hole 29. A cooperation lever 113 rotates in the clockwise direction with the descent of the knob 120 and an eyelet 94 supporting a clutch lever 93 descends and a clutch 95 also deseconds. As a link lever 77 is rotated in the counter clockwise direction by the energizing force of a return spring 78 and an operation lever 81 is also rotated in the counter clockwise direction, a wick 21 descends and its projecting amount is made small.

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 wick-type kerosene stove, and in particular, to a combustion device in which the amount of combustion can be significantly adjusted. Regarding.

(Prior Art) Conventionally, in a wick-type kerosene stove, the amount of protrusion of the wick is constant, and it has been difficult to adjust the amount of combustion. Since then, kerosene stoves have become commonplace in which the protrusion of the wick can be adjusted and the amount of combustion can be adjusted within a permissible range that does not deteriorate the exhaust gas components. However, the amount of combustion in this type of kerosene stove can only be adjusted to 90-80% of the maximum amount, so when the room temperature rises excessively, it is necessary to extinguish the fire or open the window to adjust the room temperature. There were many disadvantages in terms of operability and economics.

Therefore, as shown in Japanese Utility Model Publication No. 50-113930 or Japanese Utility Model Publication No. 55-22325, the wick covered by one combustion tube is divided into front and rear parts, and the front and rear wicks are separated from each other independently. As a haunt,
Oil stoves have been proposed in which the amount of combustion can be significantly adjusted.

However, with the structure of this kerosene stove, the combustion heat applied to the combustion tube is uneven, especially during small combustion in which only one wick is burned, so that the combustion tube is likely to be thermally deformed due to temperature differences. In addition, since there is only one combustion tube and its volume is constant, when switching between large combustion and small combustion in which both wicks are burned, the combustion balance is disrupted and the generation of flames and soot is a transient phenomenon. Or, during small combustion, deterioration of exhaust gas such as the generation of odor tends to occur.

(Problems to be Solved by the Invention) As mentioned above, with conventional liquid fuel combustion devices, such as wick-type kerosene stoves, it is difficult to significantly adjust the amount of combustion, and it is difficult to greatly adjust the amount of combustion. Therefore, the proposed device had a structure in which there was only one combustion tube and the wick within it was divided, resulting in thermal deformation of the combustion tube, generation of standing flames, soot, odor, and deterioration of exhaust gas. There was a problem that could easily occur.

The present invention has been made in consideration of the above circumstances, and is capable of greatly adjusting the amount of combustion, and also prevents thermal deformation of the combustion tube.
The object of the present invention is to provide a liquid fuel combustion device that can prevent the generation of flames, soot, and odor, and the deterioration of exhaust gas.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a liquid fuel combustion device in which a combustion tube covers a lamp wick whose lower part is immersed in liquid fuel and is movable up and down and can appear freely, in which a plurality of combustion tubes are arranged vertically. In addition, the plurality of combustion tubes can be connected and separated in the vertical direction, and the plurality of combustion tubes are divided into The vertical movement of the lamp wick is linked to the connection and separation of the lamps.

<Function> In the liquid fuel combustion apparatus of the present invention, the amount of combustion is adjusted by combining or separating a plurality of vertically divided combustion cylinders by utilizing the flame focusing effect of the combustion cylinder. That is, when a plurality of combustion tubes are combined, the amount of combustion increases, and when they are separated, the amount of combustion decreases. In addition, by moving the wick up and down in conjunction with the combination and separation of the combustion tubes, and by increasing the amount of protrusion of this wick when the fuel is large and decreasing it when the fuel is small, liquid fuel is vaporized due to changes in the effective volume of the combustion chamber. The amount of vaporized gas and its draft force are matched. In this way, the combustion state is stabilized during large combustion, small combustion, and when switching between the two, resulting in the generation of transient flames and soot during switching, lack of red heat due to lack of vaporized gas, Prevents odor and carbon monoxide generation.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a main body of the apparatus, and the main body 1 of the apparatus includes a fixed tank 3 fixed to a base 2 via a support frame 4, and a case body (not shown) attached to cover the fixed tank 3. ing. Further, a fuel tank 5 located inside the case body and on the right side of the upper surface of the fixed tank 3 when viewed from the front is a fuel tank 5 that supplies liquid fuel such as kerosene to the fixed tank 3 at a constant level. is attached removably.

Further, a combustion section 11 is provided on the upper left side of the fixed tank 3. Next, the configuration of this combustion section 11 will be explained.

An opening 12 is formed on the upper left side of the fixed tank 3, and a stepped portion 13 surrounds this opening 12.
A burner basket 14 having a substantially cylindrical shape with a reduced diameter at the upper part is fixed through the burner basket 14, and a flange-shaped fire pan 15 is formed at the upper end of the burner basket 14.

Further, a cylindrical core guide 16 is integrally provided on the inner bottom surface of the fixed tank 3, and the upper part of the core guide 16 faces the upper part of the burner basket 14 from the inside with a small gap therebetween. At the same time, a regulating plate 18 is provided which has a grate portion 17 corresponding to the grate portion 15 of the burner basket 14 on its upper end surface and is partially open.

Then, the burner basket 14 and the core guide 16
A cylindrical lamp wick 21 made of non-combustible fibers is supported in between so as to be movable up and down, and the upper part of the lamp wick 21 is retractable from the fire pan 15.17.
The lower part is constantly immersed in the liquid fuel in the fixed tank 3.

Furthermore, above the fire pan 15.17, a lower combustion tube 22 and an upper combustion tube 23 are provided that cover the lamp wick 21 and can be coupled and separated in the vertical direction. Next, the configuration of these combustion tubes 22 and 23 will be explained starting from the lower combustion tube 22.

There are many air holes 2 on the fire pan 17 of the wick guide 16.
A cylindrical lower inner flame cylinder 25 having a diameter of 4 is placed. A plurality of lower guide disks 26, which are partially opened inside, are fixed horizontally to the F-side inner flame tube 25, and a lower rectifier plate stand 27 is fixed to the upper end surface. There is. Furthermore, a lower current plate 2 is placed on this lower current plate stand 27.
8 are fixedly fixed thereto, and an air passage port 29 having the same shape and overlapped with each other is formed in the center of the lower baffle plate base 27 and the lower baffle plate 28 .

On the other hand, on the fire pan 15 of the burner basket 14,
A cylindrical lower outer flame tube 31 having a large number of air holes 30 is placed concentrically on the outer circumferential side of the lower inner flame tube 25, and the upper end of this lower outer flame tube 31 is placed. A lower glass retainer 32 is fixed to the portion in the form of seven lunges. Further, a substantially cylindrical lower outer cylinder 33 is attached to the lower part of the lower outer flame cylinder 31 by a cross pin (not shown) and is located concentrically on the outer periphery of the lower outer flame cylinder 31. A lower glass outer cylinder 34 is attached between the cylinder 33 and the lower glass retainer 32. A gap is formed between the lower end of the lower outer cylinder 33 and the fire pan 15 of the burner basket 14, and this gap serves as a lower air intake port 35 that opens downward.

The upper combustion tube 23 is coaxially and vertically movably supported above the lower combustion tube 22 configured as described above. Similarly to the lower combustion tube 22, the upper combustion tube 23 includes an upper inner flame tube 37 having the same diameter as the lower inner flame tube 25 and a large number of air holes 36, and an upper guide disk 3.
8. Partially opened upper rectifying plate stand 39, upper rectifying plate 40
, an upper outer flame tube 42 having the same diameter as the lower outer flame tube 31 and having a large number of air holes 41, an upper glass retainer 43, an upper glass outer tube 44 having the same diameter as the lower glass outer tube 34, and a cross pin (Fig. (not shown).

This upper combustion tube 23 differs from the lower combustion tube 22 in particular in that the upper outer flame tube 42 and the upper glass outer tube 4
4, an air control tube 46 having a plurality of upper air intake ports 45 is fixed between the lower ends of the lower glass retainer 32, and a gap is formed between the air control tube 46 and the lower glass retainer 32. There is. Further, on the outer peripheral surface of the air control cylinder 46,
so as to surround the lower glass retainer 32 while maintaining a gap,
A hollow cylindrical air guide tube 47 is fixed, and a gap between the air guide tube 47 and the lower glass retainer 32 is opened downward.

Further, the upper combustion tube 23 has an upper rectifying plate 40.
A movable rod 49 is vertically fixed through the center of the upper rectifying plate base 39 and the upper guide disk 38, and the lower part of the movable rod 49 is connected to the lower guide disk of the lower combustion tube 22. 2
6 in a slidable manner to reach the inside of the core guide 16. Further, in the center of the movable rod 49, the outer diameter is slightly smaller than the air passage opening 29 at the joint part of the two combustion tubes 22, 23, and this air passage hole 29 is connected to the two combustion tubes 22, 23.
．． A plate-shaped opening/closing body 50 is fixed horizontally, which opens when the parts 23 are connected and closes when they are separated.

Further, on the front side of the bottom of the device main body 1, there is provided a wick ejection mechanism 61 for making the lamp wick 21 appear and retract, and this wick ejection mechanism 61 includes a combustion tube elevating mechanism 62 for moving the upper combustion tube 23 up and down. is incorporated. Next, the configurations of the wick projecting/retracting mechanism 61 and the combustion tube lifting/lowering mechanism 62 will be explained.

An operation plate 63 is attached to the front side of the fixed tank 3, and a bearing plate 64 is attached to the rear side of this operation plate 63.
A cylindrical operating shaft 65 is rotatably and horizontally supported. A core vertical shaft 66 that rotatably passes through the front surface of the fixed tank 3 is fitted into this operating shaft 65, and this core vertical shaft 66 is connected to a stopper hole formed at the front end of the core vertical shaft 66. 67 and engaged with a notch 68 formed at the front of the operating shaft 65, the operating shaft 65 is prevented from being pulled out and rotated, and the shaft spring 70 is also prevented from rotating. is constantly urged backwards. Furthermore, a backing 71 is sandwiched between the fixed tank 3 and the bearing plate 64 so as to surround the core vertical shaft 66.

Further, a right end portion of a lifting plate 72 is fixed to the rear end of the lead vertical shaft 66 located in the fixed tank 3, and a lead holder shaft 73 is provided on the left end of the lifting plate 72 to protrude rearward. ing. On the other hand, a cylindrical wick holder 74 is fixed to the outer peripheral surface of the lamp wick 21, and a holder metal fitting 75 is fixed to the front surface of this wick holder 74.
5 has a long hole 76 formed therein. And this long hole 7
6 is engaged with the wick holder shaft 73, so that the lamp wick 21 moves up and down in conjunction with the rotation of the wick up and down shaft 66.

Further, an interlocking lever 77 is supported by the operating shaft 65 so as to be movable up and down, and the interlocking lever 77 is always urged counterclockwise when viewed from the front by a return spring 78. The interlocking lever 77 has a locking pin 79 protruding forward at its left end, and regulating pieces 80 are integrally bent at the upper and lower sides of its right end.

Further, an operating lever 81 is fixedly supported on the operating shaft 65, and this operating lever 81 is positioned with some play between the pair of regulating pieces 80 of the interlocking lever 77. On the other hand, on the right side of the operation panel 63 is a slider guide 8.
2 is formed, and a slider 83 is attached to this slider guide 82.
is supported to be vertically slidable, and an operating knob 85 is fixed to the front surface of this slider 83 via a support 84. A flanged projection 86 formed protrudingly on the rear surface of the slider 83 is engaged with an elongated notch 87 formed at the right end of the operating lever 81, and is adapted to the up and down movement of the operating knob 85. Interlockingly, the operation shaft 65
And the core vertical shaft 66 is adapted to rotate.

Next, the structure of the locking mechanism 91 incorporating the extinguishing mechanism 90 of the wick projecting/retracting mechanism 61 will be explained.

The locking pin 79 of the interlocking lever 77 is connected to the operation plate 63.
It protrudes forward from an arcuate groove 92 formed on the left side. A clutch lever 93 is supported by an eyelet 94 on the upper left side of the front surface of the operation plate 63 so as to be movable up and down, and the locking pin 79 is attached to the lower part of the clutch lever 93. Clutch 95 is fixed. Furthermore, the clutch lever 93 is always biased clockwise by a clutch spring 96.

Further, a horizontal sensing piece 97 is bent and formed on the right side of the clutch lever 93, and this sensing piece 97 passes freely through the front surface of the operating plate 63 and is attached to the upper surface of the operating plate 63. It is faced from below. Then, a flange part 9 is attached to the lower end.
A pendulum shaft 99 having a pendulum shaft 99 loosely passes through the sensing piece portion 97 and the upper surface of the operating plate 63 from below.
It is screwed onto a pendulum 100 located above 3.

Further, an operating lever 101 that is pressed from below by the sensing piece 97 is supported on the operating shaft 65 so as to be movable up and down.
02, it is always biased counterclockwise. A horizontal sensor 1 is provided at the right end of the operating lever 101.
03 is integrally bent, and this sensing body 103 is formed by a slit 10 formed on the right side of the operation plate 63.
4, is positioned above the fixed tank 3, and is pressed against the lower surface of the fuel tank 5 so as to be able to approach and separate.

Next, the configuration of the combustion tube lifting/lowering mechanism 62 that is linked to the wick projecting/retracting mechanism 61 will be described.

An eyelet 94 supporting the clutch lever 93 on the operation plate 63 passes through a long hole 111 formed in the operation plate 63, and is movable by a predetermined amount. Also,
There is another eyelet 11 on the left end of the front surface of the operation panel 63.
A cooperative lever 113 is supported by 2 so as to be vertically movable, and the eyelet 94 is rotatably passed through the cooperative lever 113. On the other hand, on the left side of the slider guide 82 of the operation plate 63, there is another slider guide 1.
14 is formed, and a slider 115 is supported on this slider guide 114 so as to be able to move up and down.
15, there are two elongated holes 116. An adjustment plate 118 formed with the support 117 is fixed, and the support 11
An adjustment knob 120 is fixed via 9. A shaft 121 protruding from the right end of the cooperative lever 113 is engaged with the elongated hole 116 on the upper side of the adjustment plate 118. A cooperative lever 113 is adapted to rotate.

Further, a drive shaft 122 is rotatably and horizontally supported at the bottom of the device main body 1, and the left end of a drive lever 123 is fixed to the front end of the drive shaft 122, and the right end of the drive lever 123 is fixed to the front end of the drive shaft 122. A shaft body 124 protruding from the top is engaged with a long hole 117 on the lower side of the adjustment plate 118, so that the drive shaft 122 rotates in conjunction with the vertical movement of the adjustment knob 120. It has become. On the other hand, inside the core guide 16, there are a plurality of guide plates 125 that are partially open.
is fixed horizontally, and slidably passes through the center of these guide plates 125, and a drive rod 126 whose upper end abuts the lower end of the movable rod 49 is supported so as to be vertically movable. A shift plate 128 in which a long hole 127 is formed is fixed to the lower end of the rod 126. And this shift plate 12
A shaft body 130 protruding from the left end of a connecting lever 129 whose right end is fixed to the rear end of the drive shaft 122 is engaged in the elongated hole 127 of the drive shaft 122. The shift plate 128 and the drive rod 126 move up and down in conjunction with the movement.

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

First, the operation of the wick projecting/retracting mechanism 61 will be explained.

When the operating knob 85 is pushed down, the operating lever 81 rotates clockwise in conjunction with this, and
An operating shaft 65 and a core vertical shaft 6 are integrated with this operating lever 81.
6 and the lifting plate 72 are rotated clockwise, and the wick 21 is projected onto the fire pan 15.17. Further, as the operating lever 81 rotates, the operating lever 81 presses the lower regulation piece portion 80 of the interlocking lever 77 from above, so that the interlocking lever 77 rotates clockwise.
The locking pin 79 of the interlocking lever 77 is engaged with the clutch 95 located opposite the arcuate vortex 92, and the interlocking lever 77 is rotated clockwise against the biasing force of the return spring 78. is maintained in the same state. Therefore, the lamp wick 21 is also held in a protruding state.

Here, for example, by energizing a heater (not shown) and touching the protruding lamp wick 21, the lamp wick 21 is ignited and combustion begins.

Moreover, when extinguishing a fire, push up the operation knob 85 strongly. Then, the operating lever 81 presses the upper regulating piece 80 of the interlocking lever 77 from below, and a strong counterclockwise force is applied to the interlocking lever 77, thereby resisting the biasing force of the clutch spring 96. , interlocking lever 7
The locking pin 79 of No. 7 is forcibly removed from the clutch 95. Then, as the locking pin 79 is disengaged from the clutch 95, the interlocking lever 77 is moved by the biasing force of the return spring 78.
rotates counterclockwise, and the lower regulating piece 80 of the interlocking lever 77 presses the operating lever 81 from below, causing the operating lever 81 to rotate counterclockwise. The operating shaft 6 is integrated with this operating lever 81.
5 and the wick vertical shaft 66 are rotated counterclockwise, and the wick 21 is lowered and recessed, thereby extinguishing the fire.

In addition, if an earthquake occurs during combustion, the equipment body 1
When a force is applied to knock down this device body 1,
As the pendulum 100 swings, the flange portion 98 of the pendulum shaft 99 moves the sensing piece portion 97 of the clutch lever 93, and the clutch lever 93 rotates, causing the clutch 9 to rotate.
5 is removed from the locking pin 79 of the interlocking lever 77. Then, the wick 21 is immersed and extinguished in the same manner as described above.

Furthermore, when the fuel tank 5 is removed during combustion, as the fuel tank 5 separates from the sensor 103 of the actuating lever 101, the actuating lever 101 is moved counterclockwise by the biasing force of the actuating spring 102. The operating lever 101 presses the sensing piece 97 of the clutch lever 93 from below, causing the clutch lever 93 to rotate counterclockwise. Along with this, this clutch lever 9
The clutch 95 of No. 3 is disengaged from the locking pin 79 of the interlocking lever 77, and the wick 21 is retracted and extinguished in the same manner as described above.

Next, the operation of the combustion cylinder elevating mechanism 62 will be explained.

As shown in FIG. 1, when the adjustment knob 120 is raised, the upper combustion tube 23 is in a lowered state, and the lower combustion tube 23 is in a lowered state.
It is connected to 2.

As shown in FIG. 2, when the adjustment knob 120 is pushed down, the drive lever 123 rotates in the chronological direction, and the drive shaft 12 is rotated integrally with this drive lever 123.
2 and the connecting lever 129 rotate clockwise.

Accordingly, the shift plate 128 and the drive rod 126 rise together, the drive rod 126 pushes up the movable rod 49, the upper combustion tube 23 rises together with the movable rod 49, and the lower combustion tube rises. 23 and the movable rod 4
The opening/closing body 50 of No. 9 is located within the air passage opening 29 of the engaging portion of both combustion tubes 22, 23, and substantially closes this air passage 29.

Further, as the adjustment knob 120 is lowered, the cooperative lever 113 rotates in the opening direction, and the clutch lever 93
As the eyelet 94 supporting the lowers, the clutch 95 also lowers. Then, this clutch 9
The interlocking lever 77, which is engaged with the lever 5 through the locking pin 79, is rotated counterclockwise by the biasing force of the return spring 78, and the operating lever 81 is rotated counterclockwise around S1. The lamp wick 21 is lowered and its protrusion amount becomes smaller.

On the other hand, when the adjustment knob 120 is pushed up, the drive lever 123 rotates in the counterclockwise opening direction, the drive rod 126 descends, and the movable rod 49 and the upper combustion tube 23 descend due to their own weight. While being connected to the lower combustion tube 23, the opening/closing body 50 is also lowered to open the air passage 29. At the same time, the cooperative lever 113 rotates counterclockwise to raise the clutch 95. Then,
As the interlocking lever 77 is rotated in the rotational direction,
The operating lever 81 is also rotated clockwise, and the lamp wick 21 rises, increasing its protrusion amount.

Next, the combustion action will be explained.

Combustion occurs between the inner flame tube 25.37 and the outer flame tube 31 surrounding the wick 21.
, 4'2, but due to the flame focusing action of the inner flame tube 25°37; when both combustion tubes 2'2 and 23 are combined, the amount of combustion increases, and when they are separated. Sometimes it gets smaller. That is, by connecting and separating the two combustion tubes 22 and 23 in this way, the amount of combustion can be greatly adjusted. Of course, by changing the heights of both combustion tubes 22 and 23, the range in which the combustion amount can be adjusted can be set arbitrarily. - During small combustion, combustion air is supplied to the combustion chamber through the lower air intake 35 and the air hole 30 of the lower outer flame tube 31, and also through the lower end opening of the wick guide 16,
This is carried out through the guide plate 125 therein, the lower guide disk 26 in the lower inner flame tube 25 and the air hole 24 of the lower inner flame tube 25. At the time of large combustion, in addition to this, combustion is carried out through the gap between the air guide tube 47 and the lower glass retainer 32, the upper air intake port 45, and the air hole 41 of the upper outer flame tube 42, as well as through the lower straightening plate. Stand 27 and lower rectifier plate 28
air passage 29, upper guide disk 3 in upper inner flame tube 37
8 and the air hole 3G of the upper inner flame cylinder 37.

According to the above configuration, the combustion heat is uniformly applied to each combustion cylinder 22, 23 in the circumferential direction during both large combustion and small combustion, so it is due to the temperature difference! ! i Baking tube 22
．． 23 thermal deformation does not occur.

Also, during small combustion, the air control tube 46 and the lower glass retainer 32
Since the gap between the upper combustion cylinder 23 and the upper combustion cylinder 23 becomes wider by the amount of rise of the upper combustion cylinder 23, a large amount of cold air is introduced from the outside.

This cold air is then introduced into the lower combustion tube 22 and utilized as secondary combustion air.
Since it has the effect of cooling the upper combustion tube 23 against the heating caused by the flame, the upper combustion tube 23 can maintain stable performance for a long period of time without thermal deformation.

Furthermore, as described above, the amount of protrusion of the wick 21 increases when the two combustion tubes 22, 23 are combined, and decreases when they are separated, so the amount of liquid fuel evaporated increases when the two combustion tubes 22, 23 are combined. It decreases when separated. That is, the amount of vaporized gas produced by vaporizing the liquid fuel and its draft force are matched to changes in the effective volume of the combustion chamber. Therefore, a stable combustion state can be obtained during large combustion, small combustion, and switching between the two.

For example, when switching from large combustion to small combustion, the amount of vaporized gas and its draft force are also reduced as the effective volume of the combustion chamber is reduced, thereby preventing transient phenomena such as the generation of flares and soot.

Conversely, even when switching from small combustion to large combustion, the amount of vaporized gas increases immediately, so the response speed of combustion switching is fast and there is no lack of red heat due to lack of vaporized gas.

Further, deterioration of exhaust gas such as odor and carbon monoxide generation is also prevented.

Furthermore, each combustion tube 22.23 has an air intake port 35.45 on the outer peripheral side, and both combustion tubes 22.
Since the air passage port 29 of the joint 23 is also closed during separation, combustion air is effectively supplied during both small combustion and large combustion, making the combustion state more stable.

Note that when the two combustion cylinders 22 and 23 are connected and separated, the operation lever 81 is operated via the operation knob 85 within the range allowed by both the regulation pieces 80 of the interlocking lever 77.
By rotating the lamp, the amount of protrusion of the lamp wick 21 can be finely adjusted, and the combustion state can be finely adjusted.

〔Effect of the invention〕

According to the present invention, the combustion tube that covers the lamp wick is divided into a plurality of upper and lower parts, and the combustion amount is adjusted by combining and separating these plurality of combustion tubes, so that the amount of combustion amount that can be adjusted is greatly increased. It can be set as desired, and since the combustion heat is uniformly applied to each combustion tube in the circumferential direction, it is possible to prevent thermal deformation of the combustion tube due to temperature differences.In addition, the vertical movement of the wick can be used to connect and separate multiple combustion tubes. Since the amount of vaporized gas is adjusted in accordance with changes in the effective volume of the combustion chamber, stable combustion conditions can be obtained during large combustion, small combustion, and when switching. It can prevent the generation of flames and soot, lack of red heat, and deterioration of exhaust gas.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing one embodiment of the liquid fuel combustion device of the present invention, Fig. 2 is a cross-sectional view when both combustion tubes are separated, Fig. 3 is a perspective view thereof, and Fig. 4 is a lamp wick protrusion and ejection. FIG. 5 is an exploded perspective view of the mechanism, FIG. 5 is a perspective view of its assembled state, and FIG. 6 is a front view thereof. 21...Light wick, 22...Lower combustion tube, 23...Upper combustion tube.

Claims (1)

[Claims] (1) In a liquid fuel combustion device comprising a lamp wick whose lower part is immersed in liquid fuel and is movable up and down and retractable, and a combustion tube that covers this lamp, the combustion tube is divided into a plurality of upper and lower parts, and The plurality of combustion tubes can be freely connected and separated in the vertical direction, and the vertical movement of the lamp wick is linked to the connection and separation of the plurality of combustion tubes, and the amount of protrusion of the lamp wick when the plurality of combustion tubes are separated is A liquid fuel combustion device characterized by reducing the size of.