Full-premixing plate type steam generator

Abstract

The invention provides a full-premixing plate type steam generator, and relates to the technical field of steam generators. The full-premixing plate type steam generator comprises a main shell, a combustor, a vaporization section, a heating section and a preheating section, wherein a fuel gas inlet is formed in the top of the main shell, a smoke outlet is formed in the bottom of the main shell, the combustor, the vaporization section, the heating section and the preheating section are sequentially arranged in the main shell from top to bottom, the upper end of the vaporization section communicates with a steam outlet, a main water inlet is located in the bottom of the main shell, the combustor comprises a fire grate and an ignition device, the fire grate comprises an upper-layer fire grateand a lower-layer fire grate, through holes with different shapes and sizes are uniformly distributed in the upper-layer fire grate and the lower-layer fire grate, the ignition device is positioned below the fire grate, the vaporization section, the heating section and the preheating section are of a tubular structure, and heat absorption blades are arranged on the periphery of a tube wall. Flamedistribution is uniform, strength is consistent, combustion is sufficient, a heated body is uniformly heated, heat efficiency is high, carbon deposition is not prone to being generated in the heatedbody, and safety is high.

Description

technical field [0001] The invention relates to the technical field of steam generators, in particular to a fully premixed plate steam generator. Background technique [0002] A steam generator is a device that uses the heat generated by fuel combustion to heat water to generate steam. It is widely used in the food industry, biological equipment industry, and chemical industry. The combustion flame of the traditional atmospheric combustion modular furnace or the fully premixed combustion modular furnace adopts either upward or radial combustion, which cannot avoid the problem of uneven cross-section temperature during the cooling and condensation process of the flue gas, and is prone to carbon deposits in the heated body, which affects The heat transfer efficiency has to be cleaned regularly, which is very troublesome. Moreover, the flame distribution is uneven, the intensity is inconsistent, the combustion is insufficient, and it is easy to form a flame concentration area,...

AI Technical Summary

Problems solved by technology

The combustion flame of the traditional atmospheric combustion modular furnace or the fully premixed combustion modular furnace adopts either upward or radial combustion, which cannot avoid the problem of uneven cross-section temperature during the flue gas cooling and condensation process, and is prone to carbon deposits in the heated body, which affects The heat transfer efficiency has to be cleaned regularly, which is very troublesome

And the flame distribution is uneven, the intensity is inconsistent, the combustion is insufficient, and it is easy to form a flame concentration area, which makes the heating body unevenly heated, and the thermal efficiency is low

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