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Hot water device

A hot water device and heat exchanger technology, applied in burner safety devices, residential hot water supply systems, heat sinks, etc., can solve problems such as poor productivity and increased manufacturing costs

Inactive Publication Date: 2020-05-01
NORITZ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the productivity is poor and the manufacturing cost is increased

Method used

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Experimental program
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Embodiment Construction

[0049] Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

[0050] figure 1 The shown water heater WH is constructed as a water heater, such as Figure 2 ~ Figure 4 As shown, it includes a burner unit BU (burner group) holding a plurality of burners 1 in a horizontal arrangement, a combustion chamber housing 2, a gas supply manifold G, a fan 4, a drive motor M for the fan 4, a primary Heat exchanger HE1, secondary heat exchanger HE2, unit case 5 and temperature fuse F (in Figure 4 omitted).

[0051] An air pressure chamber 59 , which will be described later, is provided in an area outside the combustion chamber case 2 and the primary heat exchanger HE1 in the inner area of ​​the unit case 5 . The primary heat exchanger HE1 corresponds to an example of the "heat exchanger" referred to in the present invention.

[0052] Each burner 1 is a gas burner and is a combustion tube. Such as Figure 5 As show...

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PUM

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Abstract

The hot water device (WH) is provided with: a burner (1) that receives combustion air from a fan (4); a heat exchanger (HE1) having a heat transfer pipe (7); and a combustion chamber case (2) in whicha combustion chamber (29) of the burner (1) is formed and which can guide the combustion gas generated by the burner (1) to the heat exchanger (HE1), wherein a unit case (5) enclosing the combustionchamber case (2) is further provided, and an outer region of the combustion case (2) inside the unit case (5) is configured as an air pressure chamber (59) having a higher pressure than the combustionchamber (29). Thus, combustion gas can be appropriately prevented or inhibited from leaking to the outside by a simple configuration.

Description

technical field [0001] The present invention relates to water heaters such as water heaters. Background technique [0002] As a specific example of a water heater, there is a water heater (for example, refer to Patent Documents 1 and 2) that includes a burner that receives the supply of combustion air from a fan, and a burner for combustion generated by the burner. A heat exchanger for heating cold and hot water by recovering heat from the gas. Such a hot water device includes a combustion chamber case that accommodates the burner inside and surrounds a combustion chamber of the burner. The combustion gas is guided to the heat exchanger by the combustor housing. [0003] In the above-mentioned water heater, it is required to properly prevent combustion gas from leaking from the inside of the combustion chamber casing and the heat exchanger to the outside of them. For example, an opening for maintenance of the burner or the like is provided in the combustion chamber housin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/02
CPCF24H9/02F24H9/2035F24D17/0005F24H1/0036F24H9/2042F28F1/30F28F1/325F28D2021/0024F28D7/1638F28D7/1661F28F2215/12Y02B30/18F24H15/31F24H15/20F23C5/02F23C7/008F23D2209/10F23K5/007F23L1/00F23L17/005F23M7/00F28F1/20
Inventor 长谷川宏树秋山隆福西启吾太田浩志马越亮辅
Owner NORITZ CORP