Oxygen-supplementation-type fume gas circulation combustion device

A flue gas circulation and combustion device technology, applied in combustion methods, combustion equipment, solid fuel combustion, etc., can solve problems such as wasting energy and polluting the environment, and achieve increased purity, less flue gas emissions, and less nitrogen oxides. Effect

Inactive Publication Date: 2012-03-14
上海尚实航空发动机股份有限公司
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Problems solved by technology

However, the current treatment method for the flue gas is basically to discharge the hot flue gas directly to the atmosphere. Therefore, it is necessary to heat the

Method used

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  • Oxygen-supplementation-type fume gas circulation combustion device
  • Oxygen-supplementation-type fume gas circulation combustion device

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Embodiment Construction

[0013] Such as figure 1 As shown, the oxygen-supplementing flue gas circulation combustion device of this embodiment includes a combustion chamber 1 and a blower 2 and a flue gas induced draft fan 3 that are respectively connected to the combustion chamber 1 through pipelines. The air damper 22 is connected, the smoke outlet of the smoke induced draft fan 3 is connected with the smoke exhaust damper 32 through the smoke exhaust pipe 31, the smoke exhaust pipe 31 is connected with the air inlet pipe 21 through the smoke circulation pipe 32, and the air inlet pipe 21 is connected with the output end of the oxygen supply device 4 .

[0014] In this embodiment, the flue gas circulation pipe 32 is provided with a flue gas circulation volume regulating damper 321, the output end of the oxygen supply device 4 is provided with an oxygen flow regulating valve 41, the oxygen supply device 4 is a vacuum oxygen generator, and the fresh air wind The inlet of the valve 22 is connected to t...

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Abstract

The invention discloses an oxygen-supplementation-type fume gas circulation combustion device which comprises a combustion chamber (1), an air blower (2) and a fume gas induced draft fan (3). The air blower (2) and the fume gas induced draft fan (3) are respectively connected with the combustion chamber (1) through pipelines; an air inlet of the air blower (2) is connected with a fresh air valve (22) through an air inlet pipeline; a fume outlet of the fume gas induced draft fan (3) is connected with a fume discharge air valve (32) through a fume discharging pipeline (31); the fume discharging pipeline (31) is communicated with the air inlet pipeline (21) through the fume gas circulation pipeline (32), and the air inlet pipeline (21) is connected with an output end of the oxygen supplying device (4). The oxygen-supplementation-type fume gas circulation combustion device can be used for sufficiently and circularly utilizing heat in fume gas for combustion, and has the advantages of less fume gas discharge, less discharged waste heat and nitrogen oxide, and energy conservation and is environmentally-friendly.

Description

technical field [0001] The invention relates to the field of industrial boilers and kilns, and specifically designs a combustion device for industrial boilers and kilns. Background technique [0002] At present, in the combustion system of industrial boilers and kilns, air is basically used as a combustion aid, and nearly 80% of the N in the air is 2 It is a non-combustible inert gas, which can passivate and dilute the combustion. After combustion, the flue gas at 500°C to 700°C carries nitrogen oxides and a lot of heat. However, the current treatment method for the flue gas is basically to discharge the hot flue gas directly to the atmosphere. Therefore, it is necessary to heat the air while discharging the hot flue gas, which wastes energy, and the flue gas contains nitrogen oxides and other pollutants. It also pollutes the environment in the air. Contents of the invention [0003] The present invention aims at the shortcomings of the above-mentioned prior art, and pro...

Claims

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Application Information

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IPC IPC(8): F23B80/02F23C9/06F23L7/00
Inventor 王石柱
Owner 上海尚实航空发动机股份有限公司
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