JPS60129515A - Wire net burner - Google Patents

Abstract

PURPOSE:To contrive an improvement in durability and reliability of the titled burner, by forming a combustion board piling up wire nets and providing a coated layer made of a specific organic silicon polymer on the surface of the wire net of a gas supply side part. CONSTITUTION:As for the titled burner, a combustion board 1 is formed by piling up wire nets 1' and a coated layer 5 made of organic silicon polymer is formed especially on the surface of the wire net of a gas supply side part out of the wire nets 1'. Simultaneously with a matter that gas mixed with air by an air suction port 2 and a mixing pipe 3 is arrived at the inside of the combustion board 1 and injected through the meshes of the wire net 1', the burner is ignited and heated at red heat by raising a surface temperature to 800-900 deg.C and strong infrared rays are irradiated. As the coated layer 5 made of an organic polymer on the surface of the wire net of a gas supply side part controlling durability and reliability of the wire net burner is provided like this, the burner is protected from a causative substance of unusual corrosion and the corrosion is prevented completely. With this construction, durability of the wire net is improved and the quality and reliability of the titled device can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wire mesh burner which is mainly used for cooking and has improved corrosion resistance and durability.

Structure of conventional examples and their problems Conventional infrared burners with infrared radiation surfaces include ceramic burners, which have a large number of circular holes in a refractory plate whose main component is aoto, and each mesh is made into a large hole. The wire mesh burners and Bunsen burners used to heat refractories were used.

Ceramic burners have weak mechanical strength, take time to heat up, and have low infrared generation efficiency.

This is because the temperature around the circular hole is relatively high due to the poor thermal conductivity of the ceramic itself, but the temperature in the area away from it is relatively low and the amount of radiation is small.

On the other hand, the Bunsen burner method for heating refractories at high temperatures has the disadvantage that it does not produce uniform red heat, takes the longest time, and has the lowest amount of radiation.

On the other hand, wire mesh burners are most advantageous in terms of radiation efficiency because they use metal with excellent thermal conductivity. but,
Due to high-temperature corrosion concerns, the temperature cannot be raised too much, and when using infrared burners for cooking, they are exposed to corrosive environments such as steam, salt, soy sauce, oil, or seasonings for a short period of time. There was a problem with corrosion.

The corrosive environment is different between the red-hot part and the gas supply side part, and the corrosion in the gas supply side part in particular was the biggest cause of the decrease in the durability of the wire mesh burner.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a wire mesh burner with extremely high practical value, which has significantly improved corrosion resistance of the gas supply part that governs the durability of the burner. This is the purpose.

Structure of the Invention In order to achieve the above-mentioned object, the wire mesh burner of the present invention has a combustion plate formed by overlapping a plurality of wire meshes, and of these wire meshes, Voliboron Rokiza/ is applied particularly to the surface ridge 1 of the wire mesh on the gas supply side. This method is provided with a laminated layer of organosilicon polymer as the main component, which improves the oxidation resistance of the wire mesh on the gas supply side and the corrosion resistance against salt and steam during repeated on-off operations, increasing the durability of the wire mesh burner. This has the effect of significantly improving reliability.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the top of FIG.

The figure shows a wire mesh burner constructed in the shape of a plate, and numeral 1 is a fixed frame 4 for holding a combustion plate 1, which is a plurality of sheets woven by plain weave, tatami paper, or other methods. Further, a coating layer 5 of an organosilicon polymer is formed on the surface of the wire mesh on the gas supply side.

The gas mixed with air in the air suction 1'' 2 and the mixing tube 3 reaches the inside of the combustion plate 1, ejects from the mesh of the wire mesh 1, and ignites at the same time, causing the surface temperature to rise and become red-hot to 800 to 900°C. Emits powerful infrared rays.

When using a wire mesh burner for cooking etc., as mentioned above,
Water vapor, salt, soy sauce, seasonings, sulfur, carbon, etc. are present in large amounts.

Here, since the combustion side of the wire mesh 1' is red-hot, it undergoes high-temperature oxidation. In addition, the gas supply side portion is cooled by gas and although the temperature does not rise much, it is subject to severe corrosion under wet conditions containing a large amount of salt.

The wire mesh burner is formed by stacking two or three layers to form a combustion section in order to prevent blowing out by gusts of wind or backfire and to ensure stable combustion.

Although it is an extremely resistant material to high-temperature oxidation under red heat, it corrodes extremely easily when exposed to lower temperatures, especially in a wet corrosive environment containing salt. The same can be said of other austenitic metal materials, and it is especially on the gas supply side that wire mesh burners suffer from corrosion due to practical problems. This part is coated with a coating layer 5 of an organosilicon polymer mainly composed of polyborosiloxane, which has excellent heat resistance, anti-saline corrosion resistance, oxidation reduction, and steam relieving properties. It is completely protected from substances, and therefore there is no corrosion of the wire mesh burner, no clogging of the mesh due to corrosion-generating substances, and no further damage to the mesh due to the progress of corrosion, and the durability of the wire mesh burner can be greatly improved. It is. Here, a Fe-Cr-Al alloy was used as the wire mesh layer, and a coating layer of SiC polymer [Showa Electric Wire Co., Ltd.: S%R-301] was formed on the surface as an organosilicon polymer. . Three layers of wire mesh are stacked, and the wire mesh on which the above coating layer is formed is used as the first layer on the gas supply side ↑゛91S. 15 Regarding the wire mesh burner of the present invention with this configuration
In repeated tests of burning for 15 minutes and extinguishing for 16 hours, or burning for 8 hours and extinguishing for 16 hours, even after 5000 hours, there was only slight discoloration and no corrosion was observed, indicating excellent durability.

The coating of organosilicon polymer whose main component is polyboron loxane does not change at all even when heated at 600°C for a long time, and is dense and highly flexible. It is believed that the adhesiveness, heat resistance, oxidation resistance, and corrosion resistance are further improved, and extremely good results as mentioned in Al1 were obtained.

Effects of the Invention As explained above, according to the present invention, an organic silicon polymer containing polyborosiloxane as a main component is applied to the surface of the wire mesh on the gas supply side, which affects the durability and reliability of the wire mesh bar. Because of the coating layer, it is completely protected from the substances that cause abnormal corrosion, and the corrosion is completely eliminated. There are no combustion defects or backfire phenomena, and the durability of the wire mesh burner is significantly improved, which improves the quality of the appliance.
It has excellent effects such as greatly improved reliability, and is of high practical value.

[Brief explanation of the drawing]

Figures 1a and b are a plan view, a cross-sectional view, and a second
Figures a and b are a sectional view of a main part and an enlarged sectional view of a main part showing a wire mesh burner according to an embodiment of the present invention. 1... Combustion plate, 1'... Wire mesh, 2...
...Air suction port, 3...Mixing pipe, 5...
... Laminated. Name of agent: Patent attorney Toshio Nakao and one other person Figure 1 (a) (b) Figure 2 (a) (b)

Claims (1)

[Claims] A wire mesh burner in which a combustion disk is formed by stacking a plurality of wire meshes, and a coating layer of an organosilicon polymer containing polyborosiloxane as a main component is provided on the surface of the wire mesh, particularly on the gas supply side portion of the wire meshes.