| 摘要 |
<p>A combustion plate for use in a totally aerated combustion burner has a ceramic plate body (3a) with a multiplicity of flame holes (3b) formed therein for ejecting a premixed gas. The plate body is provided, in a lattice shape, with non-flame-hole portions (31) having no flame holes therein. Each of such regions of the plate body as are enclosed by the non-flame-hole portions (31) constitutes a collective flame-hole portion (32) having formed therein a plurality of flame holes. It is thus so arranged that flame lifting can be effectively prevented in the flame holes on the periphery of the collective flame-hole portions (32). Along each of such sides of the non-flame-hole portions (31) as are adjacent to each of the collective flame-hole portions (32), outside flame holes (3b') are formed at a predetermined spacing therebetween in a longitudinal direction of the non-flame-hole portions (31). This predetermined spacing is set to be greater than a spacing, in the longitudinal direction of the non-flame-hole portion (31), between two adjoining flame holes (3b) formed in the collective flame-hole portion (32). Outside flame holes (3b') along one width side and outside flame holes (3b') along the other width side, in the longitudinal direction of the non-flame-hole portion (31), are disposed at a positional shifting in the longitudinal direction of the non-flame-hole portion (31).</p> |
