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Boiler

一种锅炉、水管的技术，应用在锅炉领域，能够解决脱落、翅片裂痕、不能有效利用扩大传热面等问题，达到高耐久性、低NOx化的效果

Active Publication Date: 2008-06-04
MIURA COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art boilers, there is a problem that effective heat recovery cannot be performed due to the location of the fins on the water tubes
In other words, there is a problem that the enlarged heat transfer surface provided on the water tube group constituting the boiler cannot be effectively utilized.
In addition, there are problems such as cracks and falling off on the fins that are overheated by the combustion gas depending on the situation.

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0047] Next, a boiler according to a first embodiment of the present invention will be described with reference to the drawings.

[0048] Fig. 1 is an explanatory diagram of a longitudinal section of a boiler according to a first embodiment of the present invention. Fig. 2 is a schematic explanatory diagram of a cross section taken along line II-II of Fig. 1 . Fig. 3 is a schematic explanatory diagram of a cross section taken along line III-III in Fig. 1 . Fig. 4 is a schematic explanatory view of a cross section taken along line IV-IV in Fig. 1 .

[0049] As shown in FIG. 1 etc., the boiler 1 of this embodiment is comprised using the tank body 10 which has the water tube group arranged in the ring, and the burner 40 arrange|positioned in the center part of these water tube groups. At a position above the combustor 40 , an air box 50 for supplying combustion air to the combustor 40 is provided.

[0050] The tank body 10 is constituted by erecting a plurality of water pipe g...

no. 2 example

[0072] Next, a boiler according to a second embodiment of the present invention will be described. The basic structure of the boiler of the second embodiment of the present invention is the same as that of the first embodiment described above. Therefore, in the following description, the same reference numerals as those of the first embodiment are assigned to the same parts as those of the first embodiment, and detailed description thereof will be omitted, and the configurations different from those of the first embodiment will be mainly described.

[0073] Fig. 5 is a schematic explanatory diagram of a cross section of a boiler according to a second embodiment of the present invention. More specifically, FIG. 5 is a schematic explanatory diagram corresponding to FIG. 2 of the first embodiment described above. That is, this FIG. 5 is a schematic explanatory diagram of a cross section near the inner gas flow path 25 (corresponding to the "gas flow path" of the present inventio...

no. 3 example

[0081] Next, a boiler according to a third embodiment of the present invention will be described. The basic structure of the boiler of the third embodiment of the present invention is the same as that of the first embodiment described above. Therefore, in the following description, the same reference numerals as those of the first embodiment are assigned to the same parts as those of the first embodiment, and detailed description thereof will be omitted, and the configurations different from those of the first embodiment will be mainly described.

[0082] Fig. 6 is an explanatory diagram of a longitudinal section of a boiler according to a third embodiment of the present invention. Fig. 7 is a schematic explanatory diagram of a cross section taken along line VII-VII of Fig. 6 . FIG. 8 is a schematic explanatory diagram of a cross section taken along line VIII-VIII in FIG. 6 . Fig. 9 is a schematic explanatory diagram of a cross section taken along line IX-IX of Fig. 6 .

[...

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PUM

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Abstract

An object of the present invention is to provide a boiler having a water tube group having an enlarged heat transfer surface (fins, etc.) that efficiently recovers heat and has high durability. The present invention is a boiler (1) comprising a tank body (10) having an inner water pipe group (20) and an outer water pipe group (30) arranged in a ring, and a combustion engine disposed in the center of the inner water pipe group (20). A device (40), characterized in that the adjacent inner water pipes constituting the inner water pipe group (20) are closed except for the part where the gas flow path is provided, and the inner water pipe group near the gas flow path (20) and at least one of the above-mentioned outer water tube group (30) is provided with column fins (22, 32).

Description

technical field [0001] The present invention relates to boilers (multi-tube tubular boilers). Background technique [0002] In the past, boilers having a tank body provided with a group of water tubes arranged in a ring are known. In such a boiler, generally, a burner is disposed at the center of the water tube group. That is, in the boiler having such a structure, the central portion of the group of water tubes arranged in an annular shape functions as a combustion chamber for burning the fuel supplied from the burner. [0003] Also, in conventional boilers, in order to increase the amount of heat recovered from the combustion gas generated in the burner, there is known a technique of providing fins on predetermined water tubes constituting the water tube group (for example, refer to Patent Document 1). [0004] However, in conventional boilers, there is a problem that effective heat recovery cannot be performed due to the location of the fins on the water tubes. That is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/40F24H9/18
CPCF24H1/403F24H9/0026F28F2215/04F28D7/1669F28F1/124F28D7/0041F24H1/406F24H1/40
Inventor 角宗司
Owner MIURA COMPANY LIMITED
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