Open back water reciprocating flue type normal pressure boiler

Abstract

The invention belongs to an opening inverted water reciprocating flue normal pressure boiler. The boiler body is divided into three parts, an upper part inside the boiler body is a water storage tank while a lower part inside the boiler body is a lower boiler body water liner and a furnace hearth, an upper boiler body water liner is arranged between the lower end of the boiler body water storage tank and the upper end of the lower boiler body water liner, the upper boiler body water bladder liner and the lower boiler body water liner are connected through a through water pipe; a water inlet pipe is arranged on the upper end of the boiler body and is communicated with the water storage tank through a ball float valve, a water outlet pipe is communicated with the lower boiler body water liner; a reciprocating flue is arranged in the lower boiler body water liner, which consists of an upper flue, a lower flue and a main flue. The opening inverted water reciprocating flue normal pressure boiler has an inverted water working way with inflowing on the upper part and outflowing at the lower part, which sufficiently absorbs heat energy of the boiler body, and has the advantages of coal conservation, simple structure, low production cost, rapid firing, good safety and high heat utilization rate.

Description

technical field [0001] The invention belongs to an open backwater reciprocating flue type atmospheric boiler. Background technique [0002] Most of the traditional heating boilers adopt the structure that interlayers are arranged on the sides and top of the furnace body to form a water-absorbing bladder. It is connected with the lower end of the hot water absorber, and the outlet pipe is connected with the upper end of the hot water absorber. The cold water enters the hot water absorber and the hot water pipe from the water inlet pipe, and uses the heat absorber and the hot water pipe to absorb the heat of coal in the furnace to heat the inside. The water becomes hot water, and is discharged from the furnace body through the outlet pipe at the upper end of the water-absorbing water tank. [0003] This traditional heating boiler uses cold water to enter the water-absorbing tank near the furnace at the lower end of the furnace body, then gradually heats up, absorbs heat and t...

AI Technical Summary

Problems solved by technology

However, since the water-absorbing bladder is usually wrapped around the furnace, cold water first enters the water-absorbing bladder around the furnace, making the temperature around the furnace too low, making it difficult for the coal in the furnace to maintain a sufficient combustion temperature, often making the coal in the furnace unable to Fully burned, a large amount of unburned coal is discharged from the furnace body, resulting in waste of coal

[0004] On the other hand, the heat dissipation part of the boiler is located at the upper end of the furnace, and the heated water runs upwards, the heat absorption of the hot water is greatly reduced, and it cannot effectively absorb the heat of the furnace body at the upper end of the furnace, so that the temperature discharged from the smoke outlet is too high , resulting in wasted energy

Traditional heating boilers also have the disadvantages of large coal consumption, environmental pollution, complex structure, slow heating and low heat utilization rate.

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