JPH0379011U

JPH0379011U -

Info

Publication number: JPH0379011U
Application number: JP13723289U
Authority: JP
Priority date: 1989-11-27
Filing date: 1989-11-27
Publication date: 1991-08-12

Description

[Brief explanation of the drawing]

第１図はこの考案の液体燃料燃焼装置を示す要
部断面図、第２図および第３図はそれぞれ三次空
気導入口の配列状態を示す第１図のＡ−Ａ断面図
、第４図はこの考案の液体燃料燃焼装置を用いた
給湯機の一例を示す要部断面図、第５図は従来の
液体燃料燃焼装置を示す要部断面図である。１…噴霧口、２…戻り式圧力噴霧ノズル（流量
可変霧化器）、３…内筒、４…一次空気導入口、
５…旋回器、６…中央開口部、７…旋回羽根、９
…空気通路、１０…外筒、１１…二次空気導入口
、１２…三次空気供給口、１３…三次空気室、１
４…三次空気導入口、１５…送風器、１６…レベ
ラ、１７…ポンプ、１８…戻り流量調整弁、１９
…バーナ、２０…燃焼室。 Figure 1 is a cross-sectional view of the main parts of the liquid fuel combustion device of this invention, Figures 2 and 3 are cross-sectional views taken along line A-A in Figure 1, showing the arrangement of tertiary air inlets, respectively. FIG. 5 is a cross-sectional view of a main part of an example of a water heater using the liquid fuel combustion device of this invention, and FIG. 5 is a cross-sectional view of a main part of a conventional liquid fuel combustion device. 1... Spray port, 2... Return type pressure spray nozzle (variable flow rate atomizer), 3... Inner cylinder, 4... Primary air inlet,
5...Swirl device, 6...Central opening, 7...Swirl blade, 9
...Air passage, 10...Outer cylinder, 11...Secondary air inlet, 12...Tertiary air supply port, 13...Tertiary air chamber, 1
4...Tertiary air inlet, 15...Blower, 16...Leveler, 17...Pump, 18...Return flow rate adjustment valve, 19
...Burner, 20...Combustion chamber.

Claims

[Claims for Utility Model Registration] 1. A burner having an inner and outer cylinder is attached to a combustion chamber, an air passage is formed between the inner cylinder and the outer cylinder, and an air passage is provided in the rear part of the inner cylinder on the opposite side from the combustion chamber. In addition to opening a primary air inlet that communicates with the passage, a variable flow rate atomizer is installed near the primary air inlet in the inner cylinder so that the atomizer is on the combustion chamber side. is provided with a swirler having a plurality of swirling blades,
In a liquid fuel combustion device in which a plurality of rows of secondary air inlets are opened in the inner cylinder portion on the combustion chamber side of the swirler, a tertiary air chamber is formed on the burner attachment side of the combustion chamber, and A liquid fuel combustion device characterized in that a plurality of tertiary air inlets are provided on a wall of a tertiary air chamber, and a tertiary air supply port is provided in the outer cylinder to communicate the tertiary air chamber with an air passage. 2. The liquid fuel combustion apparatus according to claim 1, wherein the diameter of the plurality of tertiary air introduction ports is formed to increase as it goes upward from the burner. 3. The liquid fuel combustion apparatus according to claim 1, wherein the total area of the tertiary air inlets in each row is set to increase as one goes upward from the burner. 4. The liquid fuel combustion device according to any one of claims 1 to 3, wherein the variable flow rate atomizer is a return type pressure spray nozzle in which the flow is returned to the leveler via a return flow rate regulating valve. 5. A water heater comprising the liquid fuel combustion device according to any one of claims 1 to 4. 6. A bathtub with hot water supply, characterized by comprising the liquid fuel combustion device according to any one of claims 1 to 4.