Complete pre-mixing type combustion system

Abstract

The invention discloses a totally premixed combustion system, comprising a single-chip, a display circuit, a keyboard setting circuit, a signal amplification circuit, a wave filter circuit, an A / D translation circuit, a D / A translation circuit, a gas flow sensor, a draught fan and gaseous mass flow controller. The single-chip and display circuit, keyboard setting circuit are respectively connected; the single-chip are connected in sequence with the D / A translation circuit, gaseous mass flow controller, gas flow sensor, the signal amplification circuit, the wave filter circuit and the A / D translation circuit, the output end of the A / D translation circuit is connected onto the single-chip; the single-chip also are connected in sequence with the draught fan, the gas flow sensor, the signal amplification circuit, the wave filter circuit and the A / D translation circuit. The output end of the A / D translation circuit is connected onto the single-chip. The system has simple structure, safety and credibility, accurate control, the system can get optimum matching of gas and air in reason, thereby obtaining good energy-saving effect.

Description

technical field [0001] The invention relates to a combustion system, in particular to a complete premixed combustion system. Background technique [0002] The time required for gas combustion consists of two parts, namely, the time of physical contact between the oxidizer and the gas (mixing time of gas and air) T ph and the time of chemical reaction of combustible components T ch. The combustion process can be divided into diffusion combustion T ph≥T ch, partial premixed combustion T ph≈T ch and complete premixed combustion T ph≤Tch according to the different proportions of the two. [0003] Since complete premixed combustion requires complete premixing of gas and air before combustion, compared with partial premixed combustion and diffusion combustion, complete premixed combustion has the following advantages: strong firepower and complete combustion; when used in industrial furnaces directly When the workpiece is heated, it will not cause excessive oxidation of the workp...

AI Technical Summary

Problems solved by technology

However, the flame propagation ability of the complete premixed combustion is very strong, so the flame stability is poor, the possibility of flashback is high, and the adjustment range is small; the structure is large and heavy; the noise is loud under high pressure and high load

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