Horizontal afterheat boiler capable of improving heat exchange efficiency

Abstract

The invention discloses a horizontal afterheat boiler capable of improving heat exchange efficiency. The horizontal afterheat boiler comprises a boiler body, and a chimney connected to a back way of the boiler body; a smoke outlet is formed in the boiler body, and is provided with a smoke baffle plate; multiple water draining ports are formed in the bottom of the boiler body; the chimney is provided with a water draining port; the smoke baffle plate comprises heated surface pipe bundles, spacing baffle plates and side wing baffle plates; multiple spacing baffle plates are transversely connected to the heated surface pipe bundles, so that the smoke baffle plate totally forms a grid structure connected to the outer sides of the two heated surface pipe bundles at the outermost part; and automatic water conveyors are arranged in the water draining ports, and are floating ball type automatic drainers. The horizontal afterheat boiler can effectively prevent smoke corridors formed by smoke short circuit, and can accurately open an isolation valve to effectively protect boiler bottom materials.

Description

technical field [0001] The invention relates to the field of waste heat boilers, and more specifically relates to a horizontal waste heat boiler capable of improving heat exchange efficiency. Background technique [0002] Waste heat boiler refers to a boiler that heats water to a certain temperature by using the waste heat in waste gas, waste or waste liquid in various industrial processes and the heat generated by the combustion of combustible substances. Boilers, gas-fired boilers, and coal-fired boilers are also called waste heat boilers. Waste heat boilers can produce hot water or steam for use in other workshops through waste heat recovery. Generally, they can be divided into horizontal waste heat boilers and vertical waste heat boilers. [0003] The flue gas flow direction in the horizontal waste heat boiler is as follows: figure 1 As shown in the direction of the middle arrow, it enters the heat exchange module from the flue inlet 1, and then flows from the flue outl...

AI Technical Summary

Problems solved by technology

However, manual isolating valves are installed on these drain gates, and each time the staff needs to manually open and close these manual isolating valves on site. Since the staff cannot directly observe the water storage situation in the furnace, each time the Judging by experience when to open the manual isolation valve to discharge water, it causes great inconvenience to the work on site, and it is easy to cause water accumulation and rust at the bottom of the furnace

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