Combined gap type gas steam boiler

Abstract

The invention discloses a combined gap type gas steam boiler. The combined gap type gas steam boiler comprises heat exchange pipes, an upper header, a lower header, a smoke shell, a combustor, a condenser, a chimney and a controller; the multiple heat exchange pipes form a vertically-arranged annular pipe row; a space defined by the annular pipe row is a hearth; the adjacent heat exchange pipes are combined to form axial gap channels evenly distributed along the circumference; the width of each axial gap channel ranges from 0.1 to 4mm, a laminar flow strengthening effect is formed, a center high-temperature area is eliminated, and only the 50 to 300 mm process is needed when the smoke temperature is reduced to 300 DEG C or below; and meanwhile, the smoke resistance is smaller than 1000Pa, heat loads of all the heat exchange pipes are evenly distributed, the scaling risk is reduced, and the boiler ton steel steaming consumption, the water volume and the draught fan power consumption are reduced. The combined gap type condenser is suitable for a heat conduction oil boiler, the combined gap type coil condenser is suitable for a coil steam generator, the laminar flow strengthening design is introduced into the two traditional boiler types, and the application of laminar flow strengthening is further expanded.

Description

technical field [0001] The invention relates to the technical field of gas boilers, in particular to a combined gap type gas steam boiler. Background technique [0002] In recent years, the smog problem persists, and urban areas have completely eliminated coal-fired boilers below 35 steam tons, but hotels, laundry shops, breweries, feed factories, district heating, etc. still need a large amount of coal-fired boilers between 0.1 and 10 steam tons Industrial boilers, these industrial boilers can choose natural gas or electricity as the energy source. The fuel cost of electric steam boilers is about 80%-120% higher than that of gas-fired steam boilers, so gas-fired steam boilers occupy a dominant position in the high-power steam boiler market of 0.5-10 steam tons. Gas-fired steam boilers are mostly used in urban areas, and the boiler room space is small. It is required to reduce the volume of steam boilers as much as possible to save space, improve boiler efficiency to reduce...

AI Technical Summary

Problems solved by technology

However, there are problems such as huge boiler volume, huge water volume, slow start-up and shutdown speed, and large heat loss when starting and stopping the furnace.

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