Heat recovery device

A technology of heat recovery and heat-absorbing fins, which is applied to feed water heaters, fluid heaters, preheating, etc., and can solve the problems of heat recovery devices without heat-absorbing screens, heat recovery devices that cannot operate normally, and heat recovery devices that are large

CN113654030AInactive Publication Date: 2021-11-16BEIJING QING CHUANG JIN HUA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-11-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a heat recovery device, and relates to the technical field of heat recovery of high-temperature gas of coal and oil gasification combustion. The heat recovery device comprises an outer cylinder, wherein a heat absorbing screen assembly is arranged on the outer cylinder; a high-temperature gas inlet and a high-temperature gas outlet are formed in the two ends of the outer cylinder separately; the outer cylinder comprises an upper annular collecting box and a lower annular collecting box; a membrane-type water cooling wall is arranged between the upper annular collecting box and the lower annular collecting box; the heat absorbing screen assembly comprises an upper collecting box and a lower collecting box; and a heat absorbing sheet is arranged between the upper collecting box and the lower collecting box, the heat absorbing sheet is circumferentially arranged on the membrane-type water cooling wall, and the axis of the heat absorbing sheet is parallel to the axis of the membrane-type water cooling wall. According to the heat recovery device, the heat absorbing screen assembly is simple in structure; the surfaces of the heat absorbing sheet and the membrane-type water cooling wall are kept smooth, so that liquid ash and solid ash do not have bonding pivots in the movement process in the heat recovery device, and bonding and blocking are avoided.
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Description

technical field

[0001] The invention relates to the field of heat recovery of high-temperature gases such as coal and oil gasification combustion, and in particular to a heat recovery device. Background technique

[0002] With the development of society, the petrochemical and coal chemical industries, which are energy-intensive, will usher in tremendous changes. At the same time, it is also a historic opportunity for high-energy-consuming enterprises to upgrade their technologies. Combustion and gasification of carbon-containing coal, coke, oil and other substances will produce a large amount of high-temperature gas. If this part of high-temperature gas does not contain solids (substances with high melting points such as ash) matter), the heat is easier to recover. However, if it contains a large amount of solids and liquids, it is difficult to recover heat. Such molten liquid and gaseous substances will undergo a phase change during the heat recovery process and become sol...

Examples

Embodiment 1

[0038] combine Figure 1 to Figure 7 , the present invention provides a heat recovery device, comprising an outer cylinder 1, a heat absorbing panel assembly 2 is arranged on the outer cylinder 1, a high-temperature gas inlet 3 and a high-temperature gas outlet 4 are arranged at both ends of the outer cylinder 1, and the outer cylinder 1 is provided with a high-temperature gas inlet 3 and a high-temperature gas outlet 4 respectively. The cylinder 1 includes an upper annular header 11 and a lower annular header 12, a membrane water wall 13 is arranged between the upper annular header 11 and the lower annular header 12, and the heat absorption panel assembly 2 includes an upper header 21 and The lower header 22, a heat absorbing sheet 23 is arranged between the upper header 21 and the lower header 22, and the heat absorbing sheet 23 is circumferentially arranged on the membrane water wall 13, and the axis of the heat absorbing sheet 23 It is parallel to the axis of the membrane ...

Embodiment 2

[0051] to combine Figure 8 to Figure 11 , the present invention provides a heat recovery device, comprising an outer cylinder 1, a heat absorbing panel assembly 2 is arranged on the outer cylinder 1, a high-temperature gas inlet 3 and a high-temperature gas outlet 4 are arranged at both ends of the outer cylinder 1, and the outer cylinder 1 is provided with a high-temperature gas inlet 3 and a high-temperature gas outlet 4 respectively. The cylinder 1 includes an upper annular header 11 and a lower annular header 12, a membrane water wall 13 is arranged between the upper annular header 11 and the lower annular header 12, and the heat absorption panel assembly 2 includes an upper header 21 and The lower header 22, a heat absorbing sheet 23 is arranged between the upper header 21 and the lower header 22, and the heat absorbing sheet 23 is circumferentially arranged on the membrane water wall 13, and the axis of the heat absorbing sheet 23 It is parallel to the axis of the membr...