JPH0624650Y2 - Oil burner glass burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to a glass cylinder of an oil stove in which a so-called outer flame cylinder is formed of a glass cylinder.

<Prior Art> A glass burner for an oil stove is known in which a pattern or pattern is formed on a glass cylinder provided as an outer flame cylinder, but this pattern or pattern does not change in color even when the temperature changes. Therefore, during combustion, it is known that the burner is at a dangerous temperature due to the red hot state of the burner, but immediately after the fire is extinguished, it is not known whether the burner is at a dangerous temperature because the red heat of the burner gradually diminishes.

Therefore, it is conceivable that the burner temperature is shown by the temperature indicating paint. However, there is no practical material that can withstand the high temperature of the burner and it has not been commercialized, but recently, a metal oxide thermochromic material having high temperature durability has been developed and is in the stage of commercialization. However, even if a pattern or pattern is formed on the glass burner using a thermochromic material,
Since this thermochromic material changes color from yellow to orange and then to red, the thermochromic material becomes close to a co-color during and immediately after burning, making it difficult to see patterns and patterns.

Therefore, the present applicant has proposed a device in which a heat-resistant white coating film that serves as the back of the thermochromic material is formed on the glass cylinder so that the pattern of the thermochromic material can be easily distinguished. (Application No. 61-201977) When a pattern or pattern of such a thermochromic material is formed,
In addition to the above safety function, the design becomes excellent even during combustion.

However, if a white paint that serves as a background is simply applied to the glass burner, the amount of infrared rays passing through the glass cylinder of the glass burner decreases, and the total amount of energy radiated to the front surface decreases. Further, since the energy transmitted from the glass cylinder to the outside is shielded by the white paint inside the burner, heat is accumulated inside the burner and the temperature becomes high, which may cause a thermal failure in the burner such as an abnormal temperature rise of the burner. There is.

<Means for solving the problem> A colored film that blocks a band-shaped red heat color is formed on a part of a transparent glass cylinder, and a pattern formed by a thermochromic material and a dummy pattern are formed on this film. To do.

<Operation> The burner temperature is recognized by the color difference between the dummy pattern and the thermochromic material pattern. The red-hot color of the burner is radiated from the transparent part that does not form a colored film.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an oil stove used in an embodiment of the present invention, in which 1 is a main body and 2 is a glass burner. As is well known, the glass burner 2 has a transparent glass cylinder arranged on the outer peripheral side so that the red heat state of the inner flame cylinder and the outer flame cylinder can be seen. The glass cylinder of this glass burner 2 is shown in Fig. 2 (a).
It is configured as shown in. 31 in FIG. 2 (a)
Is a transparent glass cylinder and is made of a heat-resistant material such as borosilicate glass. A colored undercoat film 4 is formed in a band shape in the central portion of the glass cylinder 3. This film 4
Is formed by applying a heat-resistant inorganic ink in a band shape and then drying by touching with a finger. As shown in FIG. 3, which is an enlarged view, patterns 5 of thermochromic material and patterns 6 of dummy are alternately formed on the colored base film 4. The pattern 5 of the thermochromic material has a heat resistance of 7
A thermochromic material pigment BiVO ₄ .0.1CaO powder composed of an inorganic metal oxide having a temperature of 00 to 800 ° C. is used as a binder with a frit having a melting point of 580 ° C. to form a coating ink, which is formed into a line by silk printing. The dummy patterns 6 are thicker and wider than the dummy patterns 6. The dummy pattern 6 is formed of a heat-resistant paint having the same color as the thermochromic material pattern 5. For example, thermochromic material
Since BiVO ₄ .0.1CaO has a yellow color at room temperature, a yellow heat-resistant paint is also used for the dummy pattern 6. In addition, this thermochromic material BiVO.0.1CaO is yellow at normal temperature and exhibits orange to red at 120 ° C. or higher. This material is reliable and practical at high temperatures.

FIG. 2 (b) shows another example, in which the coating 4, patterns 5, 6 are formed in a pair of strips on the top and bottom of the glass cylinder 3. As shown in FIG. 4, which is an enlarged view of the patterns 5 and 6, the patterns 5 and 6 are alternately formed, and the lines of the thermochromic material pattern 5 are thicker and wider than the lines of the dummy pattern 6. There is.

When the thermochromic material pattern 5 is formed thicker and wider than the dummy pattern 6 as described above, the visibility in a high temperature state is improved.

In such an oil stove, the patterns 5 and 6 are yellow at room temperature and can be recognized at a glance as a non-combustion state. When burned next, only the pattern 5 of the thermochromic material changes color from yellow to orange and red as the burner temperature gradually rises. Due to this color change, the temperature state of the burner can be recognized by the difference from the dummy pattern 6, and the patterns 5 and 6 are lifted up with the film 4 as the back, making them easy to visually recognize. The red hot light in the burner is emitted from the portion where the film 4 is not formed, and is emitted to the room directly or by the reflector. This radiation eliminates the heat withdrawal.

Further, even if the red heat of the burner disappears immediately after extinguishing the fire, the burner temperature can be recognized by the color of the thermochromic film 5 and the burn can be prevented.

<Effect> As described above, according to the present invention, infrared rays can be sufficiently radiated while the temperature state of the burner can be checked at a glance.

[Brief description of drawings]

FIG. 1 is a perspective view of a stove used in an embodiment of the present invention, FIGS. 2 (a) and 2 (b) are perspective views of the same example, and FIG. 3 is an enlarged view of an essential part of FIG. 2 (a). Fig. 4 is an enlarged view of the main part of Fig. 2 (b). 2: Burner, 3: Glass cylinder, 4: Colored film, 5: Thermochromic film, 6: Dummy film.

Claims (1)

[Scope of utility model registration request] 1. A petroleum stove comprising a transparent glass cylinder on which a band-shaped colored film for blocking the red-hot color is formed, and a pattern formed of a thermochromic material and a dummy pattern are formed on the film. Glass burner.