Horizontal water-pipe-type-structure steam generator

Abstract

The invention belongs to the technical field of heat exchanging equipment, and particularly relates to a horizontal water-pipe-type-structure steam generator. The horizontal water-pipe-type-structuresteam generator comprises a membrane-type wall furnace hearth and a convection heating surface. The generator further comprises an atmospheric pressure energy-saving device, one side of the membrane-type wall furnace hearth is provided with a burner, and produced high temperature flue gas passes through the convection heating surface and the atmospheric pressure energy-saving device in sequence and finally is discharged; and softened water heated and deoxidized by the atmospheric pressure energy-saving device is sent into a lower collecting box through a water supplying system, steam generatedafter the softened water is heated through the membrane-type wall furnace hearth and the convection heating surface enters into an upper collecting box, the upper collecting box is internally provided with a steam-water baffle used for steam-water separation, and the separated-out steam enters a steam outlet pipe seat. According to the horizontal water-pipe-type-structure steam generator, the burner is arranged on one side of the membrane-type wall furnace hearth, so that the produced high temperature flue gas flows left and right, the flowing area of the flue gas is increased, and the heat exchanging efficiency is improved accordingly; inlet water is deoxidized through the atmospheric pressure energy-saving device so that the situation that dissolved oxygen in the inlet water corrodes awater pipe and make the water pipe scale can be prevented; and the steam-water baffle is arranged in the upper collecting box in order to separate out high-purity steam.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment, and in particular relates to a steam generator with a horizontal water tube structure. Background technique [0002] There are nearly 600,000 generators in my country's coal-fired industry, which consume 800 million tons of coal annually, accounting for the largest amount of coal consumption in the country. Coal-fired industrial generators have low efficiency, high levels of pollutant emissions, and low levels of automation, putting enormous pressure on the environment. With the increasing demand for energy conservation, emission reduction and smog control in the country, and the further strengthening of oil and gas energy production capacity, oil and gas boilers will gradually replace the market for small and medium coal-fired boilers in the future. [0003] In recent years, my country has made great progress in fuel oil and gas generators, with continuous improvement of efficie...

AI Technical Summary

Problems solved by technology

However, the flue gas flow is a two-way process formed by the cooperation of the furnace, convection tube bundle, back-combustion chamber, smoke pipe assembly and condensation chamber, which is not conducive to the optimization of the overall volume of the generator.

[0006] Therefore, oil-fired gas-fired boilers still have the potential to be explored in terms of structure and energy efficiency; moreover, the current small traditional steam generator has a large water volume, generally greater than 50L, low thermal efficiency, and there are certain safety hazards, and the water pipes are prone to scaling

Images