Numerical control gas burner

Abstract

The invention discloses a numerical control gas burner, which comprises a gas valve set, a gas metering unit, a blower, an igniter, a flame detector and a highly intelligent numerical control system. When the numerical control gas burner is operated, the highly intelligent numerical control system presets flame openness of the burner to control the gas valve set to output gas flow adapting to the flame openness according to manual instructions and feedback signals such as temperature, pressure or the like; and the highly intelligent numerical control system calculates and adjusts rotation speed of the blower to ensure constant output of best air distribution of the blower in large-range flame adjustment according to gas flow and air-fuel ratio provided by the gas metering unit. The highly intelligent numerical control system is completely different from special controllers for conventional gas burners, and is capable of monitoring and recording the whole combustion process and important parameters of a controlled object at any time, capable of sending acoustic, optic and text warnings in case of failure, and capable of automatically controlling the burner to take corresponding measures to ensure absolute security of personnel and equipment according to severity of the failure.

Description

technical field [0001] The present invention relates to a burner, in particular to a digitally controlled gas burner. Background technique [0002] At present, in the broad concept of burners, household water heaters, gas stoves, and even lighters can all be considered as a type of burner (or burner). According to its working principle, the burner can be defined as: it is a kind of equipment that converts substances into heat energy through the chemical reaction of burning, that is, air and fuel are mixed in an appropriate proportion through a premixing device to make them fully burnt. [0003] A gas burner (such as a natural gas burner) is a heating device that uses gas fuel. It is collectively referred to as a device that makes gas and air spray out and mix (or mix and spray) combustion in a certain way; gas machines are divided into industrial gas burners by type and application field Engines, civil gas engines, and special gas engines. [0004] Conventional proportiona...

AI Technical Summary

Problems solved by technology

Unstable gas pressure and flow will naturally change, directly affecting combustion and thermal efficiency

[0009] Since the control device of a conventional gas engine is very simple and can only operate in a fixed mode, it is impossible to realize the high automation, high safety, high stability and high intelligence chain control and intelligent alarm required by large and high-performance burners, obviously. There are defects such as low accuracy of air-fuel ratio, low heat conversion efficiency, poor stability and safety, and complicated operation process.

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