JPH0461254U

JPH0461254U -

Info

Publication number: JPH0461254U
Application number: JP10349590U
Authority: JP
Priority date: 1990-10-01
Filing date: 1990-10-01
Publication date: 1992-05-26

Description

[Brief explanation of the drawing]

第１図は本考案による第１の実施例を示す排気
室構造の正面図、第２図は第１図のＡ−Ａ線断面
図、第３図は本考案による排気室内部での排ガス
流れを示す断面図、第４図は本考案による排気室
での騒音レベルを示すスペクトル特性図、第５図
、第７図はそれぞれ本考案による第２，３の実施
例を示す排気室構造の正面図、第６図、第８図は
それぞれ第５図、第７図のＢ−Ｂ線断面図、Ｃ−
Ｃ線断面図、第９図、第１０図、第１１図はそれ
ぞれ本考案による第４，５，６の実施例を示す排
気室構造の断面図、第１２図は従来例を示す燃焼
装置の正面図、第１３図は第１２図のＤ−Ｄ線断
面図、第１４図は従来例による排気室内部での排
ガス流れを示す断面図、第１５図は従来の排気室
での騒音レベルを示すスペクトル特性図である。１……バーナ、２……バーナ室、３……送風機
、４……燃焼室、５……熱交換器、６……排気室
、７……防雨板、８……排気口、１１……排気通
路、１１ａ……排気通路上面、１１ｂ……排気通
路下面、１２……排気室角部、１３……排気室天
井部。 Fig. 1 is a front view of the exhaust chamber structure showing the first embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is the flow of exhaust gas inside the exhaust chamber according to the present invention. 4 is a spectral characteristic diagram showing the noise level in the exhaust chamber according to the present invention, and FIGS. 5 and 7 are front views of the exhaust chamber structure showing the second and third embodiments according to the present invention, respectively. Figures 6 and 8 are cross-sectional views taken along line B-B and C- of Figures 5 and 7, respectively.
9, 10, and 11 are sectional views of exhaust chamber structures showing fourth, fifth, and sixth embodiments of the present invention, respectively, and FIG. 12 is a sectional view of a combustion device showing a conventional example. A front view, FIG. 13 is a sectional view taken along the line D-D in FIG. 12, FIG. 14 is a sectional view showing the flow of exhaust gas inside the exhaust chamber according to the conventional example, and FIG. 15 is a sectional view showing the noise level in the conventional exhaust chamber. FIG. 1...Burner, 2...Burner chamber, 3...Blower, 4...Combustion chamber, 5...Heat exchanger, 6...Exhaust chamber, 7...Rainproof plate, 8...Exhaust port, 11... ...exhaust passage, 11a...exhaust passage upper surface, 11b...exhaust passage lower surface, 12...exhaust chamber corner, 13...exhaust chamber ceiling.

Claims

[Scope of Claim for Utility Model Registration] 1. A burner chamber housing a burner, a blower supplying air to the burner, a combustion chamber provided above the burner chamber, a heat exchanger disposed within the combustion chamber, and an exhaust gas. In a combustion device comprising an exhaust chamber having an opening and communicating with the combustion chamber, and a rainproof plate provided inside the exhaust chamber, the rainproof plate and the ceiling of the exhaust chamber facing thereto, An exhaust chamber structure for a combustion device, characterized in that at least one opposing surface of the two is formed into a wing-like curved surface shape so that the area of the exhaust passage formed by both of them increases as it goes toward the exhaust port. . 2. Exhaust chamber structure for a combustion device according to claim 1, wherein the corner wall surface inside the exhaust chamber forming the exhaust passage is a curved surface that changes shape to form a continuous arc when viewed from the side. . 3. A water heater or bathtub with hot water supply, characterized by comprising the exhaust chamber structure according to claim 1 or 2.