Air blowing premixing type low-output gas burner and ignition method thereof |
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| 申请号 | JP28194087 | 申请日 | 1987-11-07 | 公开(公告)号 | JPS6488015A | 公开(公告)日 | 1989-04-03 |
| 申请人 | Gaz De France; | 发明人 | FURANSOA KANON; DANI DEI PAORA; JIYORUJIYU OOSUTORI; ANDORE BUANSHIYON; | ||||
| 摘要 | PURPOSE: To stabilize a flame over the entire changing range of the supply ratio of air and gas by providing a device with a correction orifice at a flammable gas entrance passage, providing a diaphragm-type passage with a small sectional area at an air entrance passage and then generating an excessive pressure at air being supplied to a pre-mixing room. CONSTITUTION: Air and a flammable gas are supplied from entrance passages 3 and 4 to a pre-mixing room 2 of a low-output burner 1. An orifice is provided at a grill 5 with a proper diameter and distribution state, and flame is adhered or stabilized at the entrance of a combustion room 6 of the burner. The burner l is dipped into a liquid 7 to be heated greatly and ignition is made by supplying a high voltage to an electrode II. For adjusting the flow rate of air and the flammable gas to a proper and needed state over the entire fluctuation range of a supply pressure, a passage 16 with a small sectional area is provided at the air entrance passages 3 and a device 18 with a correction orifice 19 is provided at the flammable gas entrance passage 4. A mixed gas flows to the side of the combustion room 6 and a slightly excessive pressure is formed at the part of the room 2 whose pressure becomes slightly low. The flow rate of the air and the flammable gas is adjusted to a needed value by pressure sensors 20 and 21 and static pressure is secured positively at the air entrance passages 3 and the pre-mixing room. | ||||||
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