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Spiral pipe membrane wall hearth and application thereof

A spiral coil and membrane technology, applied in the field of spiral coil membrane fireplace hearth, can solve the problems of increasing installation workload, reducing heat exchange efficiency, and large amount of deformation of straight tube membrane wall due to thermal expansion and cold contraction , to achieve the effect of reducing installation workload, improving heat exchange efficiency, and unique flow mode

Inactive Publication Date: 2018-01-19
厦门引导热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This kind of membrane water-cooled wall with straight tube longitudinal welding has many defects: the one-way flow of water vapor in the straight tube is too smooth, the heat transfer intensity is low, and it is not convenient to realize forced circulation flow with multiple tubes in parallel; its volume is large and its structure is not compact enough to It is very suitable for medium and small boilers; the inner wall of the straight tube furnace makes it inconvenient for heat sources such as flame or flue gas to form horizontal erosion on the tube wall, and the heat exchange efficiency is low; The structure of the furnace causes the flame, the radiation of the flue gas, and the dead angle of the flow, which significantly reduces the heat transfer efficiency. Additional welding and assembly procedures are required before the installation of the furnace, which increases the installation workload; the structural strength of the straight-tube membrane fireplace panel is not ideal , it needs to be equipped with a large-scale steel frame support to form the furnace; the straight tube-shaped membrane wall has a large amount of deformation due to thermal expansion and contraction, and the thermal stress is large

Method used

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  • Spiral pipe membrane wall hearth and application thereof
  • Spiral pipe membrane wall hearth and application thereof
  • Spiral pipe membrane wall hearth and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 A kind of spiral coil membrane type fireplace hearth shown, it comprises: a spiral coil 201, a spiral sealing plate 202, the gap between each spiral of this spiral coil 201 is welded up with this spiral sealing plate 202, book To form a complete cylindrical membrane hearth 20 .

Embodiment 2

[0034] A spiral coil membrane fireplace body, which is provided with the spiral coil membrane fireplace chamber 20 in Embodiment 1, and end plates (not shown in the figure) are welded at both ends of the spiral coil membrane fireplace chamber 20, By means of this, a complete spiral coil membrane fireplace body 2 is formed.

[0035] The furnace body of embodiment 2 is convenient to use, and the simplest application is such as inputting heat into the furnace 20 of the spiral coil membrane fireplace body 2 through the end plate, such as inputting high-temperature flue gas, and cooling water from one end of the spiral coil tube 201 The cold water is input into the mouth, and the high-temperature flue gas scours the inner wall of the corrugated furnace horizontally, and the cold water is heated into hot water or steam, which is output from the hot water outlet (or steam outlet) at the other end of the spiral coil 201. In the above application, the heated water in the spiral coil 20...

Embodiment 3

[0037] Such as image 3 A heat supply device 100 is shown, which includes: an oil tank cylinder 1, a spiral coil membrane fireplace body 2 in Embodiment 2, a water inlet pipe 3, a water vapor output pipe 4, and a gas-liquid circulation System 9, wherein the spiral coil membrane fireplace body 2 includes a furnace 20, the furnace 20 includes a spiral coil 201, a spiral sealing plate 202, and the gap between each spiral of the spiral coil 201 is welded with the spiral sealing plate 202 , the two ends of the furnace 20 are welded with end plates (not shown in the figure), the furnace body 2 is placed in the oil storage cylinder body 1, and a jacket space 5 is formed between the oil storage cylinder body 1 and the furnace body 2 , there is a high-boiling point liquid layer 6 in the jacket space 5, the high-boiling point liquid layer 6 is composed of a high-boiling point liquid energy-carrying medium with a boiling point of 340 ° C, and an air gap is formed between the high-boiling...

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Abstract

The invention discloses a spiral pipe membrane wall hearth and application thereof. The spiral pipe membrane wall hearth comprises a spiral pipe and a spiral sealing plate, and gaps between spirals ofthe spiral pipe are welded through the spiral sealing plate so that the complete cylindrical membrane wall hearth can be formed. The spiral pipe membrane wall hearth and the application thereof havethe advantages that the heat exchange efficiency is high, the structure is compact, installation is easy, and the safety is good.

Description

technical field [0001] The invention relates to the field of industrial heating, in particular to a spiral coil membrane type hearth and its application. Background technique [0002] A boiler is a mechanical device that uses heat from fuel or other energy sources to heat water into hot water or steam. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power plant, or converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, and also have a small amount of application in industrial production. Boilers that generate steam are called steam boilers, and are mostly used in thermal power stations, ships, locomotives, and industrial and mining enterprises. [0003] The water-cooled wall is the main radiation evaporation heating surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M5/08F24H7/00
CPCF22B31/08F23M5/08F24H7/02F24H7/04F24H9/0005F24H9/1809F24H9/2007F24H9/139
Inventor 程洪亮
Owner 厦门引导热能科技有限公司
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