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Full-primary combustion type combustor

A technology of burners and combustion plates, applied in the direction of gas fuel burners, burners, burners, etc., can solve the problems of high cost and high price, and achieve the effects of preventing falling off, low cost, and cost reduction

Pending Publication Date: 2020-09-01
RINNAI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, it needs high cost to manufacture such ultra-fine metal fibers, therefore, the conventional example that utilizes the knitted fabric made of metal fibers to constitute the porous body will become expensive.

Method used

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  • Full-primary combustion type combustor
  • Full-primary combustion type combustor
  • Full-primary combustion type combustor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Figure 1 to Figure 4 The combustion device shown has: a full primary combustion type burner 1 according to an embodiment of the present invention, which has a burner body 11 to which a mixed gas (mixed gas of fuel gas and primary air) is supplied to the inside; Combustion plate portion 12 covered by the downward opening surface 111 of 11; The basket flange portion 22. Inside the combustion basket 2, a heat exchanger 3 for supplying hot water is housed.

[0022] The heat exchanger 3 is constituted by a fin-and-tube heat exchanger having a large number of fins 31 and a plurality of heat-absorbing tubes 32 penetrating the fins 31 . A plurality of connection covers 33 are installed on the outer surfaces of the side plates 23, 24 on one side and the other side in the lateral direction of the combustion basket 2, and divide between these connection covers 33 and each side plate 23, 24: adjacent 2 All the heat-absorbing pipes 32 are connected in series. In addition, the w...

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PUM

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Abstract

The invention provides a full-primary combustion type combustor which is provided with a combustion plate section (12) for discharging a gas mixture. The combustion plate section (12) has a porous body (123) made of metal fibers and a distribution plate (124) in which a plurality of distribution holes (124a) are formed, wherein the distribution plate (124) is disposed so as to overlap the back surface of the porous body (123), and the cost can be reduced. The porous body (123) is configured from a nonwoven fabric in which metal fibers are laminated into a felt. The surface of the non-woven fabric (123) is covered with a metal mesh sheet (125). Preferably, a mesh sheet (125) is formed by weaving wires, which are formed by binding a plurality of metal fibers, into a mesh. The mesh size of the mesh thin plate (125) is less than or equal to a flame extinguishing distance of the mixed gas discharged from the combustion plate part.

Description

technical field [0001] The present invention relates to an all-primary combustion burner having a combustion plate portion for injecting mixed gas. Background technique [0002] In the past, such an all-once combustion burner has been known. The all-on-one combustion burner is composed of a porous body made of metal fibers and a distribution plate with many distribution holes formed on the combustion plate, wherein the distribution plates are stacked. On the back surface of the porous body on the upstream side in the flow direction of the air-fuel mixture, the air-fuel mixture is ejected through the distribution holes and the porous body (for example, refer to Patent Document 1). [0003] Here, in the conventional example described above, the porous body is constituted by a woven fabric in which metal fibers are woven into a knit shape. However, in order to weave such woven fabrics, it is necessary to make the metal fibers extremely fine in order to prevent breakage of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/16F23D14/02F23D14/46
CPCF23D14/16F23D14/02F23D14/46F23D14/145F23D2203/103F23D2203/106F23D2212/201F23D2203/102F24H9/1836F24H1/40F23D14/58F23D2203/105F24H1/107
Inventor 小野贵大
Owner RINNAI CORP