Natural gas heating furnace burner cooling protection device

Abstract

The invention discloses a cooling protection device for a natural gas heating furnace burner, which includes a natural gas heating furnace and a three-way burner. The three-way burner is connected with a natural gas supply system and an oxygen supply system. The first manual control valve and the airflow distribution system, the airflow distribution system is used to adjust the flow direction and flow rate of the airflow, and it is located at the air outlet of the oxygen delivery pipe; the oxygen delivery pipe communicates with the cooling airflow supply system, and their connection point is located at the first Between the manual control valve and the air distribution system; the cooling air supply system is electrically connected to the temperature detection device in the natural gas heating furnace. The invention can accelerate the cooling speed of the burner through the external compressed gas, improve the efficiency and save time; avoid the use of blowers, save electric energy and do not generate large noise; the distributor can evenly distribute the cooling air flow, and make all parts of the burner even Cooling, no deformation due to temperature difference.

Description

technical field [0001] The invention relates to a cooling device, in particular to a cooling protection device for a burner of a natural gas heating furnace. Background technique [0002] Burner cooling protection device is a necessary equipment for natural gas heating furnace. Since the inside of the furnace is always in a high temperature state, if the burner is not cooled properly, it is easy to overheat, deform, or even burn. Therefore, after the natural gas heating furnace is used, the burner needs to be cooled. [0003] At present, the cooling protection of the burner of the natural gas heating furnace still adopts the traditional device, that is, it depends on the high-power blower to blow a large amount of air into the burner through the oxygen supply pipeline, so as to achieve the purpose of cooling the burner. [0004] With such a cooling protection device, it takes at least 8 hours for the burner to cool from 1300°C to 300°C, which takes a long time and has low ...

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Problems solved by technology

[0004] With such a cooling protection device, it takes at least 8 hours for the burner to cool from 1300°C to 300°C, which takes a long time and has low cooling efficiency. At the same time, it will invisibly waste power resources and generate a lot of noise pollution when the blower is working.

[0005] More importantly, such a cooling protection device has a poor cooling effect on the burner. Due to the shape characteristics of the burner itself, ordinary air supply pipes often directly blow the airflow in a straight line to the windward side of the burner, which cannot be evenly distributed. Distributed on the entire outer surface of the burner, which also makes the windward side of the burner cool faster, while the leeward side, top surface, side and other areas need to wait until the cooling air flow is blocked by the windward side before cooling. delay, which also causes uneven cooling on the windward side, the leeward side and other sides of the burner, and it is easy to cause deformation of the burner, reducing the cooling effect of the burner, which will directly lead to a reduction in the service life of the burner and increase the equipment. maintenance cost

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