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Large scale water-fire tube hot-water boiler with single drum horizontal vertical spirally corrugated tube

A technology for threaded smoke pipes and hot water boilers, which is applied to water heaters, fluid heaters, lighting and heating equipment, etc. The effect of reducing the exhaust gas temperature, prolonging the residence time and simple structure

Active Publication Date: 2009-10-14
哈尔滨红旗锅炉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a large-scale water-fire tube hot water boiler with horizontally placed single-drum vertical threaded smoke tube to solve the problem that the threaded smoke tube of the existing water-fire tube hot water boiler is easily damaged under low load due to the horizontal arrangement. Dust accumulation, resulting in an increase in exhaust gas temperature and a significant decrease in thermal efficiency

Method used

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  • Large scale water-fire tube hot-water boiler with single drum horizontal vertical spirally corrugated tube
  • Large scale water-fire tube hot-water boiler with single drum horizontal vertical spirally corrugated tube
  • Large scale water-fire tube hot-water boiler with single drum horizontal vertical spirally corrugated tube

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine Figure 1~3 To illustrate this embodiment, the single-drum horizontal vertical threaded smoke tube large-scale water-fire tube hot water boiler in this embodiment includes a furnace body 30, a coal feeding hopper 1, a combustion equipment 2, a front wall water-cooled lower header 4, a front wall Wall water cooling wall 5, upper drum 6, two upper headers of side wall water cooling walls 8, two front side wall water cooling walls 9, two front side water cooling wall lower headers 10, two rear side wall water cooling walls 11 , two water-cooled lower headers of the rear side wall, lower header of the water-cooled wall of the furnace rear wall 13, water-cooled wall of the furnace rear wall 14, the first connecting pipe 19, the second connecting pipe 20 and the third connecting pipe 22, the front wall The water-cooled wall 5, the water-cooled wall 14 of the rear wall of the furnace and the two front side wall water-cooled walls 9 are...

specific Embodiment approach 2

[0011] Specific implementation mode two: combination figure 1 To illustrate this embodiment, the vertical threaded smoke pipe economizer 17 in this embodiment is composed of a housing 50 and a plurality of threaded smoke pipes 51; the multiple threaded smoke pipes 51 are vertically placed in the housing 50, and Both ends of each vertically placed threaded smoke pipe 51 are respectively inserted into corresponding threaded smoke pipe installation holes on the upper cover plate 49 and the lower bottom plate 48 of the housing 50 . Such an arrangement not only has a simple structure, but also prevents dust accumulation in the threaded smoke pipe 51 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Embodiment 3: In this embodiment, the diameter of the threaded smoke pipe 51 is 56.5 mm, 63 mm, 69 mm or 81 mm. Such setting ensures that the vertical threaded smoke pipe will not produce dust accumulation under different loads. Other components and connections are the same as those in the second embodiment.

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Abstract

A single drum horizontal vertical spirally corrugated tube large scale water-fire tube hot-water boiler relates to a water-fire tube hot-water boiler. The invention solves the problem that the existing water-fire hot-water boiler is likely to accumulate ash under low load, thus causing rise of flue gas temperature and obvious drop of heat efficiency. A membrane water wall partition is parallelly arranged at the rear of the water wall in a hearth rear wall ; two rear side wall water walls are positioned at the rear of the hearth rear wall water wall as well as at two sides in a furnace body; a coiled pipe is arranged in a cavity formed by the enclosure of the hearth rear wall water wall, the membrane water wall partition and the two rear side wall water walls; the hearth rear wall water wall, the membrane water wall partition, the two rear side wall water walls and the cavity formed by the enclosure of the three are positioned in the middle part of the furnace body; and the hearth rear wall water wall is a membrane water wall; and at least one vertical spirally corrugated tube coal economizer is arranged at the rear end in the furnace body. The invention adopts the vertical spirally corrugated tube coal economizer, and therefore no ash is accumulated in the spirally corrugated tube, ash removal is easy and the heat efficiency of the boiler is improved.

Description

technical field [0001] The invention relates to a water-fire tube hot water boiler. Background technique [0002] In order to meet the heating needs in winter, there are a large number of water-fire tube hot water boilers in operation in my country. The current water-fire tube boilers have ash accumulation in the threaded smoke tube under low load, and the exhaust gas temperature rises above 200°C, resulting in a significant drop in boiler efficiency. The reason is that the main components of the current water-fire tube boilers, namely the threaded smoke tubes, are arranged horizontally. When the load is below 50% of the rated load, the velocity of the flue gas in the threaded smoke tubes will drop significantly, and the large particles of smoke in the flue gas cannot be taken away, resulting in threaded smoke. Dust accumulates in the tube, the heat transfer area is greatly reduced, so that the exhaust gas temperature is significantly increased, the thermal efficiency of th...

Claims

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Application Information

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IPC IPC(8): F24H1/44F24H9/00
Inventor 别如山王庆功
Owner 哈尔滨红旗锅炉有限公司
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