JPS5993106A - Liquid fuel burner device - Google Patents

Abstract

PURPOSE:To normally perform dry-burning of a soaked wick and to effect simple adjustment of a combustion amount, by a method wherein the contact area of a fixed wick with a moving wick is varied according to the moving distance of the moving wick. CONSTITUTION:The lower part of a fixed wick 7, positioned below inner and outer flame tubes and supported by inner and outer trays 8 and 9, is formed in the shape of a wedge so that a contact area is varied when the fixed wick makes contact with a moving wick 10 made of a fiber material. Meanwhile, a moving device 11 for the moving wick 10 is moved along the moving wick 10 and inner and outer guide tubes 12 and 13. This constitution facilitates adjustment of a combustion amount, reduces a fire-extinguishing time, and besides, brings the fixed wick into a condition in which the soaked fixed wick is dry- burnt during fire-extinguishing, resulting in minimizing of deterioration of a combustion condition due to adhesion of tar.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a liquid fuel combustion device, and in particular to a method for adjusting the combustion amount of a wick type combustor, and shortening the extinguishing time and shortening the burning time when using a fixed wick. Regarding possible configurations.

[Technical background of the invention and its problems]

Top-and-bottom wick type combustors are widely used because they are cheap and easy to use, but they require care for the wick.
When poor quality fuel is used, tar may adhere to the wick, making the wick hard and resulting in poor combustibility.

As a result, there were problems such as bad smells and soot. As a countermeasure to this problem, a method has been adopted in which the core is "karayaki" and the temperature of the core is raised to thermally decompose the tar component and evaporate and burn it, but the current shape of the core has the disadvantage that the "karayaki" time is quite long. there were. For this reason, combustors using ceramic wicks that are relatively resistant to tar adhesion have been put into practical use, but because the wick itself has a large volume, it also takes a long time to ``broil'' it, and when adjusting the amount of combustion, it is difficult to liquefy the fuel. Disadvantages include the need for surface adjustment means and long extinguishing times.

[Purpose of the invention]

The present invention was developed in consideration of the drawbacks of a wick type combustor, such as the long "burning" time and the complexity of the combustion amount adjustment mechanism when using a core material such as a hard ceramic.

[Summary of the invention]

Its basic structure consists of a relatively small-volume fixed core made of ceramic or foamed metal, and a movable core that is movably held below the fixed core.

〔Effect of the invention〕

With the above configuration, by reducing the volume of the fixed core and changing the contact area with the movable core depending on the distance of movement, "karayaki" can be constantly performed, and the amount of combustion can be easily adjusted.

[Embodiments of the invention]

Next, a detailed explanation will be given based on one embodiment of the present invention. FIG. 1 shows an embodiment of the present invention. Reference numerals 1 and 2 denote inner and outer flame tubes arranged concentrically, respectively, and a plurality of air holes 3 and 4 are provided on the outer peripheral surface of each cylinder over the entire circumference. An outer cylinder 5 is provided concentrically outside the outer flame cylinder 1, is made of a light-transmitting material, and is supported by a support cylinder 6. Reference numeral 7 denotes a fixed core located at the lower blade part between the inner and outer flame cylinders and supported by the inner and outer catch plates 8 and 9, and the lower part thereof is a movable core 10 made of fiber material.
It is wedge-shaped so that the contact area changes depending on the distance traveled when making contact with the object. Reference numeral 11 denotes a moving device for the movable core 10, which is moved inside the movable core 10 and along the outer and inner cylinders 12 and 13. 14 is a fuel tank.

Next, the operation will be explained based on one embodiment. Core moving device 1
1, when the movable core 10 is lifted up and comes into contact with the fixed core 7, the fuel moves to the fixed core 7. Ignition device (not shown)
When the flame is ignited and a flame is formed, the humidity around the fixed wick 7 increases and fuel evaporation is promoted. The amount increases and the flame moves upward. Eventually, the inner and outer flame cylinders 1 and 2 are heated to red-hot state with a combustion amount balanced with the amount of fuel sucked up from the movable wick 10 to the fixed wick 7, resulting in steady combustion. At this time, the amount of combustion is determined by the contact area between the moving wick 10 and the fixed wick 7, but since the contact area between the fixed wick 7 and the moving wick 10 is wedge-shaped, the contact area can be adjusted over a wide range, and as a result, the amount of combustion can be adjusted. The width can also be increased. When extinguishing a fire, the movable wick 10 should be lowered as it moves away from the fixed wick 7, but since the volume of the fixed wick 7 is small, the extinguishing time is short, and when extinguishing the fixed wick 7 is always in a "baked" state, which prevents tar build-up. The problem of deterioration of the combustion condition due to this is also unlikely to occur.

As explained above, according to the present invention, even when a fixed wick is used, it is easy to adjust the combustion amount, the extinguishing time is short, and the fixed wick becomes "baked" at the time of extinguishing, so there is no deterioration of the combustion state due to tar adhesion. Few.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention. 1, 2... Inner and outer flame tubes 5... Outer tube 7... Identification wick 10... Moving wick 11... Core moving device 14... Fuel tank holder 1 Kawa Chika) rW lr'i (and 1 others
Figure 1

Claims (2)

[Claims] (1) In a combustor that sucks up and burns fuel through a wick, the wick is divided into an upper fixed wick and a lower moving wick, and the contact area between the fixed wick and the moving wick changes depending on the moving distance of the moving wick. A liquid fuel combustion device characterized by: (2) The liquid fuel combustion device according to claim 1, wherein the fixed core is made of a hard material such as ceramic or foamed metal, and the movable core is made of a fibrous material.