Circulating condensation boiler

Abstract

The invention discloses a circulating condensation boiler which comprises a boiler shell. A lower collecting box is arranged at the upper end of the boiler shell; an upper collecting box is arranged at the lower end of the boiler shell; a combustor is arranged on the upper collecting box; a combustion pipe is fixedly arranged at one end, facing the lower collecting box, of the combustor; a disc isfixedly arranged on the inner wall of one end, opposite to the boiler shell, of the lower collecting box; a heat exchange pipe communicating with the lower collecting box and the upper collecting boxis fixedly arranged on the lower collecting box; the heat exchange pipe comprises an outer pipe and an inner pipe, wherein the two ends of the outer pipe respectively communicate with an inner cavityof the lower collecting box and an inner cavity of the upper collecting box, and the inner pipe is positioned on the inner side of the outer pipe; a water inlet device is connected to the inner pipe;an annular partition plate is fixedly arranged at one end, close to the boiler shell, of the inner cavity of the upper collecting box, and the partition plate is located between the circular ring where the outer pipe is located and the circular ring where the inner pipe is located; an upper spacer ring is fixedly arranged at one end, opposite to the boiler shell, of the partition plate; and a steam-water separation device is fixedly arranged on the upper spacer ring, and is arranged above the inner cavity of the upper collecting box; and a steam connector is fixedly arranged on the upper collecting box. The boiler has the effect of quickly producing steam.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a circulating condensing boiler. Background technique [0002] At present, gas-fired boilers are mainly divided into two types: vertical and horizontal. Although the horizontal gas-fired boiler can achieve flue gas condensation and recovery, it has the following disadvantages: large footprint, poor site adaptability; large water volume, large body heat dissipation loss , the actual operation efficiency is low, the steam production speed is slow, the start-up loss is large, the water intake needs thermal deoxygenation, the exhaust gas temperature is high or an independent water circulation system is required, the corrosion of the condenser is serious, the service life cannot be guaranteed, and the self-control level is relatively backward , the current vertical gas-fired boilers have the following disadvantages and deficiencies: high exhaust gas temperature and low thermal efficie...

AI Technical Summary

Problems solved by technology

[0002] At present, gas-fired boilers are mainly divided into two types: vertical and horizontal. Although the horizontal gas-fired boiler can achieve flue gas condensation and recovery, it has the following disadvantages: large footprint, poor site adaptability; large water volume, large body heat dissipation loss , the actual operation efficiency is low, the steam production speed is slow, the start-up loss is large, the water intake needs thermal deoxygenation, the exhaust gas temperature is high or an independent water circulation system is required, the corrosion of the condenser is serious, the service life cannot be guaranteed, and the self-control level is relatively backward , the current vertical gas boilers have the following shortcomings and deficiencies: high exhaust gas temperature, low thermal efficiency

[0004] The above-mentioned existing technical solutions have the following defects: the time for the existing boiler to generate steam is relatively long, although the time for the boiler to generate steam can be shortened by reducing the circulating water in the boiler, but the safety of the boiler when the circulating water is reduced Sex will decrease

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