JPH11101426A - Combustion apparatus for gas containing combustible constituent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make elevation of heating temperature easy and contrive compact construction of an apparatus and incidental equipment, by piercing a heat transfer pipe in a closed chamber filled with carbon particles, and using one opening as a gas inlet side opening and another opening as a gas combustion side opening. SOLUTION: A heat resistant electrically insulated closed chamber 3 is formed of a container 1 and a lid 2. Carbon particles are filled in the closed chamber 3. A plurality of heat transfer tubes 8 penetrating the closed chamber 3 in vertical directions are opened in upper and lower sides of the closed chamber 3, an opening opened in the lower side is made to function as a gas inlet side opening 9, and an opening opened in the upper side of the chamber 3 is made to function as a gas combustion side opening 10. And when exhaust gas containing a combustible constituent is introduced into an exhaust gas introduction chamber 11, the exhaust gas is heated by heat generated by carbon particles during the process of flowing in an interior of the heat transfer tubes 8 and is discharged at a high temperature into a combustion chamber 12. The exhaust gas having a high temperature and discharged into the combustion chamber 12 is brought into contact with air taken in through the air inlet opening 13 into the combustion chamber 12, so that the combustible constituent included in the exhaust gas is burned and a resulting gas having no combustible constituent is discharged from the combustion chamber 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus for treating gas containing combustible components such as exhaust gas discharged from an incinerator and odor exhaust gas discharged from a chemical factory, a food factory, a paper mill, and the like. It is.

[0002]

2. Description of the Related Art Conventionally, this type of combustion apparatus guides exhaust gas into a combustion chamber, heats the exhaust gas directly by a burner in the process of or in the combustion chamber, and burns the hot exhaust gas by contact with air. Things are known.

[0003]

However, in the case of the above-described combustion apparatus, there is a problem that it is not easy to increase the heating temperature and that the apparatus and incidental equipment become large and expensive.

[0004] It is an object of the present invention to provide a combustion apparatus for a gas containing a combustible component, in which the heating temperature can be easily increased and the apparatus and auxiliary facilities can be made compact.

[0005]

According to the present invention, in order to achieve the above object, carbon particles are filled in a heat-resistant electrically insulated closed chamber in which an electrode plate is disposed on an opposing surface, and a heat transfer tube is passed through the closed chamber. The heat transfer tube was configured so that one opening was a gas intake side port and the other opening was a gas combustion side port.

With this configuration, when a voltage is applied between the two electrode plates in the heat-resistant electrically insulating closed chamber, a current flows from one electrode plate through the carbon particles to the other electrode plate. When a voltage is applied to the carbon particles and a current flows, a spark is generated in a certain portion at a contact point between the carbon particles, and a high Joule heat is generated in that portion due to a high contact resistance in a certain portion. In addition, the carbon particles themselves also generate Joule heat due to the current and the fixed resistance, and together with these, the carbon particles become high in temperature and generate high heat generation.

When a gas containing a flammable component is fed from a gas inlet into a heat transfer tube penetrating the heat-resistant electrically insulated closed chamber, the gas is filled with the Garbon particles filled in the closed chamber during the passage through the closed chamber. The gas is heated by the heat generated from the gas to be heated to a high temperature and discharged from the gas combustion side port, where it comes into contact with air and combustible components contained in the gas burn.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment of a gas combustion device containing a combustible component according to the present invention.

In FIG. 1, reference numeral 1 denotes a heat-resistant electric insulating container made of ceramics, and reference numeral 2 denotes a heat-resistant electric insulating cover made of ceramics for closing an upper opening of the container 1. An insulating closed chamber 3 is formed.

Reference numerals 4a and 4b denote carbon electrode plates disposed on the opposing surfaces of the closed chamber 3, 5a and 5b denote external power supply connection terminals, and 6a and 6b denote insulators. Reference numeral 7 denotes the garbon particles filled in the closed chamber 3. As the carbon particles 7, processed charcoal such as charcoal, coal, activated carbon, and coke is used. In this example, charcoal particles of about 5 to 20 mm are used.

Reference numeral 8 denotes a plurality of heat transfer tubes provided in the closed chamber 3 so as to penetrate vertically. The heat transfer tube 8 is opened on the upper and lower sides of the closed chamber 3, and the lower opening is a gas intake side port 9, and the upper opening is a gas combustion side port 10. The number and diameter of the heat transfer tubes 8 are not particularly limited.
Further, in this example, the pipe is a straight pipe, but it is not necessarily required to be straight. Reference numeral 11 denotes an exhaust gas introduction chamber mounted below the closed chamber 3, 12 denotes a combustion chamber mounted above the closed chamber 3, and 13 denotes an air intake provided in the combustion chamber 12.

According to the apparatus for burning a gas containing a combustible component configured as described above, when a voltage is applied between the two electrode plates 4a and 4b, the current flows from one electrode plate 4a to the carbon particles 7a.
It passes through the group and flows to the other electrode plate 4b. When a voltage is applied to the group of carbon particles 7 and a current flows, spark discharge is generated in a certain portion at a contact point between the carbon particles 7 and high Joule heat is generated in the portion due to high contact resistance in a certain portion. In addition, the carbon particles 7 themselves also generate Joule heat due to the current and the specific resistance, and these are added to increase the temperature of the group of carbon particles 7 to generate high heat.

In this state, when an exhaust gas containing a combustible component is introduced into the exhaust gas introduction chamber 11, the exhaust gas enters the heat transfer tube 8 through the gas intake side port 9, flows through the heat transfer tube 8, and flows through the gas combustion side port 10. From the combustion chamber 12. The exhaust gas is heated by the heat generated from the carbon particles 7 in the process of flowing through the heat transfer tube 8, becomes a high temperature and is discharged into the combustion chamber 12, and the high-temperature exhaust gas discharged into the combustion chamber 12 is supplied to the air inlet 13. The combustible components contained in the exhaust gas are burned by contacting the air taken into the combustion chamber 12 from the
2 is discharged as a gas having no combustible components.

In this embodiment, the heat transfer tube 8 is provided so as to penetrate the closed chamber 3 in the vertical direction. However, the heat transfer tube 8 may be provided penetrating the closed chamber 3 in the horizontal direction. One opening of the heat transfer tube 8 that opens to the side wall of the heat transfer tube 8 serves as a gas intake side port 9, the opening that opens to the other side wall serves as a gas combustion side port 10, and the gas intake side port 9 of the sealed chamber 3 connects to An exhaust gas introduction chamber 11 is formed on the side wall that opens, and a combustion chamber 13 is formed on the side wall where the gas combustion side port 10 opens.

[0015]

As described above, according to the apparatus for burning a gas containing a combustible component according to the present invention, the heat generated from the garbon particles by applying an electric current to the carbon particles is utilized.
Since this is used to heat the gas as a heat source, it is possible to reduce the size of the apparatus and incidental equipment, and the heating temperature of the gas can be arbitrarily adjusted by changing the voltage of the current flowing through the carbon particles, High temperatures can be easily obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an example of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat-resistant electric insulating container 2 Heat-resistant electric insulating lid 3 Heat-resistant electric insulating sealed chamber 4a, 4b Electrode plate 5a, 5b External power supply connection terminal 6a, 6b Insulator 7 Carbon particles 8 Heat transfer tube 9 Gas intake side opening 10 Gas combustion side port 11 Gas introduction chamber 12 Combustion chamber 13 Air intake

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[Procedure amendment]

[Submission date] November 4, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

Claims (1)

[Claims] 1. A heat-resistant electrically insulated closed chamber in which an electrode plate is disposed on an opposing surface is filled with carbon particles, and the closed chamber is provided with a heat transfer tube penetrating therethrough. A combustion device for a gas containing a combustible component, characterized in that the inlet is an inlet and the other opening is a gas combustion side.