SU354673A1 - RADIATION BURNER - Google Patents

Description

The invention is based on radiation burners and can be used in various heat engineering installations.

Radiation burners are known, comprising a housing with a distribution chamber and a downstream layer of heat-resistant insulating material with channels for supplying a combustible mixture to the refractory nozzle.

The aim of the invention is to increase the heat transfer coefficient.

For this, the radiating nozzle is made in the form of hollow elements forming combustion chambers and having openings for discharging the combustion products to the adjacent nozzle section.

FIG. 1, 2, and 3 show embodiments of the burner in plan; in fig. 4 shows a section along LL in FIG. one; in fig. 5 —BB in FIG. 2; pas figs. 6 and 7 are embodiments of the burner, cuts.

The burner comprises a housing / with a distribution chamber 2, a layer 3 of fibrous insulating material with valves 4 for supplying a combustible mixture to a refractory radiating nozzle 5, made in the form of hollow elements 6 with openings 7 n 8 for the release of combustion products. Layer 3 is placed on the grid 9. In the channels 4 can be installed tube 10, provided with liners 11 (see Fig. 7).

The gas-air mixture from chamber 2 through channels 4 enters the cavity 12, where it is burned. Hot products of combustion exit cavity 12 through openings 7 and 8 and, striking adjacent areas of elements 6, additionally release their heat to the body of the radiating nozzle 5. Elements 6 in cross section may have a triangular profile.

FIG. 4 and 7 show embodiments of elements 5 in the form of an isosceles triangle, with cavity 12 on the side of layer 3 closed by the wall of element 6.

In the burners shown in FIG. 5 and 6, a layer 3 of the cavity wall 12 serves as layer 3, moreover

in fig. Figure 6 shows an embodiment of element 6 in the aggregate of two right-angled triangles, the hypotenuse of which at its lowest points are not touching and not touching layer 3.

FIG. 1 and 4, an embodiment of elements 6 is shown in which in order to exit the combustion products there are only end openings 7. In addition to the end openings 7, there are still openings 8 made in the side walls

elements 6 (see Fig. 6).

Holes 8 can be made only in the sides (see Fig. 2, 3, 5 n 7).

The tubes 10, in addition to reinforcing the channel 4 in the layer 3, serve to fix the element 6 relative to the inlet sections of the tubes 10, also serve to fix the element 6 relative to the layer 3.

Subject invention

Claims (6)

1. A radiation burner comprising a housing with a distribution chamber and a layer of heat-resistant insulating material discharged at the exit, with channels for supplying the combustible mixture to a refractory radiating nozzle, characterized in that forming the combustion chambers and having openings for the release of combustion products to the adjacent part of the nozzle. 2. Burner according to claim 1, characterized in that the elements have a triangular profile. 3. Burner no. 1, characterized in that the openings for the exit of combustion products made in opposite end sides of the elements, the longitudinal axes of which are angled to the corresponding axes of the adjacent elements. 4. Burner according to claim 3, characterized in that the holes are made in the side walls items. 5. Burner on PP. 1-4, characterized in that tubes are installed in the channels connected to the cavities of the elements. 6. A burner according to claim 5, characterized in that the tubes in the exit portions are provided with inserts. J FIG. . 5 8 5 V IIL. о / о ХХУУХ- у lSrv ZE; -: vр -;:; : 7 - Aa 6 12 7 6 2 iLJ II III Rig 2 L - s / g 7