Full-automatic high-safety low-nitrogen hot air heating combustion system and its operation method

A high-safety, combustion system technology, used in air heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as the inability to reach the auto-ignition point temperature, achieve the highest level of safety and automation, ensure no leakage, Clear and rigorous effect of ignition operation logic

Active Publication Date: 2022-04-15
WISDRI WUHAN WIS IND FURNACE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a natural safety risk in the low-temperature heating of gas. Due to the low temperature of the combustion environment, the safe self-ignition point temperature cannot be reached after the gas is introduced, and the combustion itself will cause the formation of nitrogen oxides.

Method used

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  • Full-automatic high-safety low-nitrogen hot air heating combustion system and its operation method
  • Full-automatic high-safety low-nitrogen hot air heating combustion system and its operation method

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with drawings and embodiments.

[0031] Such as figure 1 As shown, a fully automatic high-safety low-nitrogen hot air heating combustion system includes a hot blast stove 6, a main gas pipeline 1, a combustion-supporting air pipeline 4 and a controller 11, and the hot blast stove 6 is equipped with a flame automatic detection function Automatic ignition low-nitrogen burner 5, the entrance of the main gas pipeline 1 is the main gas inlet 001, the outlet is divided into the main gas pipeline 2 and the ignition gas pipeline 3, the entrance of the combustion air pipeline 4 is connected to the combustion air blower 401, the main gas The outlets of pipeline 2, ignition gas pipeline 3 and combustion-supporting air pipeline 4 are respectively connected to corresponding interfaces of automatic ignition low-nitrogen burner 5, and thermocouple 7 and combustible component detector 10 are arranged on the outlet sid...

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Abstract

The invention discloses a fully automatic high-safety low-nitrogen hot air heating combustion system and an operation method thereof. When the pressure value, the pressure of the combustion air pipeline is lower than the set safety pressure value, and the pressure in front of the main gas manual regulating valve is higher than the set safety pressure value, an alarm will be sent to the controller to prevent the system from starting or automatically stop running. Shut-off valve 1 and main gas shut-off valve 2 are controlled by the controller and can be combined with the pressure switch between the two to realize automatic detection of whether the shut-off valve leaks or not. The pressure of the pipeline automatically adjusts the air-fuel ratio in real time. The ignition gas shut-off valve 1 and the ignition gas shut-off valve 2 are controlled by the controller. The controller can perform PID control on the electric regulating valve according to the temperature difference between the temperature uploaded by the thermocouple and the target temperature. The invention has high safety and stability and ultra-low NOx emission.

Description

technical field [0001] The invention belongs to the technical field of hot air heating, and in particular relates to a fully automatic high-safety low-nitrogen hot air heating combustion system and an operating method thereof. Background technique [0002] The hot air heating system is widely used in the industrial field. According to the different heating temperature of the hot air, it is mainly divided into high temperature hot air heating (above 750°C) and medium and low temperature hot air heating (normal temperature to 750°C). Among them, the medium and low temperature hot air heating is more widely used. , Such as strip steel coating drying, automotive coating drying, paper drying, textile tenter setting, industrial packaging, indoor temperature adjustment and other fields. According to different heating methods, it is mainly divided into electric heating and gas heating. Among them, gas heating has more cost advantages and is favored by more and more industrial enterp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H3/04F24H9/00F24H9/1881F24H9/20F24H15/305F24H15/242F24H15/395F24H15/407F24H15/12F24H15/104
CPCF24H3/0488F24H9/0052F24H9/2085F24H9/1881
Inventor 周圣亮高阳秦凤华李飞李猛
Owner WISDRI WUHAN WIS IND FURNACE
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