JPH064191Y2 - End-of-life combustor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention eliminates unburned components in exhaust gas from diesel engines and other automobile engines, kerosene, gas heaters, heavy oil, gas combustion furnaces, coal-fired boiler furnaces, etc. The present invention relates to a burning device.

[Conventional technology]

As a conventional technique, a porous combustion medium made of metal or ceramics is arranged in the exhaust gas passage to capture solid unburned carbonaceous solids called soot and mist in exhaust gas, which is necessary for complete combustion. There was one that was designed to give the required time and oxygen.

[Problems to be solved by the device]

The conventional technique has the following problems to be solved.

In an unburned-combustion device of the type in which all of the exhaust gas passes through the pores of the combustion medium, the solid unburned components once trapped in the porous combustion medium blow out together with the exhaust gas passage. Therefore, the capture rate of unburned components is low, and most of them are discharged as solid unburned components.

In an unburned-combustion device in which combustion media are staggered in the exhaust passage, some of the solid unburned matter in the exhaust gas flows along the exhaust gas streamline without ever contacting the porous combustion medium. Some of the air will blow through, and as in the previous section, the capture rate of unburned matter is low, and most of it is discharged as solid unburned matter.

[Means for Solving the Problems]

In order to solve the above-mentioned conventional problems, the present invention provides a disk in which the central portion is made of a porous combustion medium and the peripheral portion is impermeable to gas, and the peripheral portion is made of a porous combustion medium, and the central portion is made of gas. It is an object of the present invention to propose an unburned component combustion device characterized in that discs that do not pass through are arranged alternately along the passage of combustion exhaust gas.

That is, in the present invention, the exhaust gas passage is completely blocked by the combustion medium so that all of the exhaust gas containing unburned components passes through the porous combustion medium. Further, the outer peripheral portion of the combustion medium is punctured into a donut shape to form a closed hole, and the blow-through of exhaust gas from this portion is completely blocked. The combustion medium arranged next is punctured in the central portion to form a closed hole, and the blow-through of exhaust gas is completely cut off at this portion. Combustion media of the outer peripheral portion and the central portion are alternately arranged.

[Action]

Since the present invention is configured as described above, the flow direction of the exhaust gas changes, and the solid unburned matter is separated from the gas flow by inertial force and captured in the closed hole part that is occluded. With the heat of the exhaust gas or the heat added separately, complete combustion takes place over time.

〔Example〕

1 to 6 show an embodiment of the present invention.
FIG. 1 is an overall vertical sectional view, FIG. 2 is a front view of the same, and FIG.
The drawing is a cross-sectional view of a disk of the first kind, FIG. 4 is a front view of the same, FIG. 5 is a cross-sectional view of a disk of a second kind, and FIG. 6 is a front view of the same.

The combustion exhaust gas G1 of the engine or boiler combustion furnace, which contains solid unburned matter such as soot or mist, flows into the unburned matter combustion apparatus main body 1 and is formed into a disk-shaped porous material made of metal or ceramics and the outer periphery of the combustion medium. The first kind of discs 4a and 4b, which are crushed in a donut shape on the outlet side, and the second type discs 5a and 5b, which are made of the same porous combustion medium as described above, are crushed on the outlet side of the central portion. , The unburned solids are trapped by the crushed portions while passing through the main bodies alternately arranged so as to block the exhaust gas passage, and are discharged as clean gas G2 after complete combustion. Porous combustion medium 4
a, 4b, 5a. At 5b, the solid unburned matter jumps out from the stream line of the exhaust gas due to its inertial force, and this is captured by the outlet side crushed portion. That is, the first type discs 4a and 4b having a porous combustion medium in the central portion through which the gas can pass, and the second type discs 5a and 5b similarly having the combustion medium in the peripheral portion through which the gas can pass. Are alternately arranged in the order of 4a, 5a, 4b, 5b, whereby the flow direction of the exhaust gas is largely changed and the unburned solid content is separated from the gas flow. It should be noted that the porous combustion media 6a, 6b, 6c are also formed on the inner wall of the apparatus body 1 where the gas flow direction changes greatly.
Is provided, and the heat insulating material 7 is provided on the inner wall of the other parts.
a and 7b are provided. Further, as shown in FIGS. 3 to 6, the blind portions 41 and 51 are completely sealed by applying a paste-like heat-resistant material at room temperature and heating and sintering.

Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, electric heaters 8a, 8b, 8c for heating are arranged in the spaces formed between the discs 4a and 5a, 5a and 4b, and between 4b and 5b, and captured by the discs. The combustion temperature of unburned solids is maintained.

Next, a third embodiment of the present invention will be described with reference to FIGS. 8 and 9. In the present embodiment, the catalyst 9 for promoting combustion is arranged at the porous portion where the unburned solids are completely burned after being captured, and the unburned solids are completely burned at a lower temperature for a shorter time. .

[Effect of device]

In the present invention, since a plurality of porous combustion media having different gas blow-through positions are alternately arranged, unburned solid content can be completely captured and complete combustion is possible. Since the space surrounded by the porous combustion medium forms the combustion chamber surrounded by the radiation exchanger (combustion medium), the heat of the exhaust gas can be effectively recovered and used.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention.
FIG. 1 is an overall vertical sectional view, FIG. 2 is a front view of the same, and FIG.
The drawing is a cross-sectional view of a disk of the first kind, FIG. 4 is a front view of the same, FIG. 5 is a cross-sectional view of a disk of a second kind, and FIG. 6 is a front view of the same. FIG. 7 is an overall vertical sectional view showing a second embodiment of the present invention, and FIGS. 8 and 9 are sectional views of a disk showing a third embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Unburned component combustion apparatus main body 2 ... Inlet side flange 3 ... Outlet side flange 4a, 4b ... 1st type disc 5a, 5b ... 2nd type disc 41 ... Outer peripheral part crushing part 51 ... Central part crushing part 6a, 6b, 6c ... Porous combustion medium 7a, 7b ... Heat insulating material 8a, 8b, 8c ... Electric heater 9 ... Catalyst

Claims (1)

[Scope of utility model registration request] Claims: 1. A combustion exhaust gas comprising a disk whose central portion is made of a porous combustion medium and whose peripheral portion is impermeable to gas, and a disk whose peripheral portion is made of a porous combustion medium and whose central portion is impermeable to gas. An unburned matter combustor characterized in that they are arranged alternately along the passage of the.