JP2000297905A - Pulse combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To greatly expand the heat transmission area of the combustion heat, and drastically improve the thermal efficiency by integrally forming a combustion chamber and a tail pipe, of a panel body of which the heat transmission area is large, and discharging an exhaust gas which is pulse-combusted in the combustion chamber through the tail pipe. SOLUTION: An air suction chamber 2 of a pulse combustion device 1 is formed into a cylindrical shape. A combustion chamber 3 and a tail pipe 4 are integrally formed in a panel body 10 wherein right and left panels are joined and bonded at a flange form bonded section. The panel body 10 is formed of the right and left panels and on respective panels, recesses of the shapes of right or left halves of the combustion chamber 3 and the tail pipe 4 are formed, and when being integrated, the combustion chamber 3 of a flat shape and the tail pipe 4 which communicates with the combustion chamber 3 and bends in detouring are housed inside. By integrating in such a manner, the panel body 10 works as a fin, and the heat transmission area is greatly enlarged. Also, on the outer periphery of the panel body 10, a wide contact surface with a liquid to be heated is formed, and a vapor film which is generated at the contact section with the liquid to be heated is kept to a minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulse combustion device.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a pulse combustion apparatus 1 mainly comprises an intake chamber 2, a combustion chamber 3, and a tail pipe 4, and air is introduced into the intake chamber 2. A flapper valve 5 is provided, and a fuel pipe 6 for introducing fuel is provided. A mixed gas obtained by mixing air and fuel is pulse-burned in the combustion chamber 3, and exhaust gas is discharged through a tail pipe 4. It is configured so that the liquid to be heated can be heated by bringing the liquid to be heated into contact with the outer periphery of the combustion chamber 3 and the tail pipe 4, but conventionally, the combustion chamber 3 is a polyhedron, The tail pipes 4 are separately assembled from each other by pipes, and have a high temperature of 800 ° C. or more at the time of pulse combustion. Therefore, a vapor film is formed on a contact surface of the liquid to be heated, and heat transfer is performed. Significantly worsens, resulting in poor thermal efficiency There is a problem in that that.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and can minimize a vapor film generated on a contact surface with a liquid to be heated, thereby improving thermal efficiency. The first gist of the present invention is to provide a pulse combustion apparatus that is configured to pulse-burn air and fuel introduced through an intake chamber in a combustion chamber and discharge exhaust gas through a tail pipe. In the combustion apparatus, at least the combustion chamber and the tail pipe are integrally formed by a panel body having a large heat transfer area. A second gist is that the panel body is constituted by two panels on the left and right sides, and the combustion chamber and the tail pipe are formed inside in a state where the left and right panels are tightly joined.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view of the pulse combustion apparatus, and FIG. 2 is a schematic side view of FIG.

[0005] The intake chamber 2 of the pulse combustion device 1 is formed in a cylindrical shape.
And the right panel 10b are integrally formed in a panel body 10 in which the right and left panels 10a and 10b are brought into close contact with each other by a flange-shaped joining portion 10c. Each of the panels 10a and 10b is formed with a left and right half-shaped recess of the combustion chamber 3 and the tail pipe 4 so that the pipe 4 is formed. And a tail pipe 4 which is bent in a detour shape in communication with the combustion chamber 3. By thus integrating the combustion chamber 3 and the tail pipe 4 with the panel body 10, a panel body is formed. The heat transfer area is greatly enlarged by the fins 10 serving as fins, and a large area of contact surface with the liquid to be heated is formed on the outer periphery of the panel body 10, whereby the contact portion with the liquid to be heated is formed. To minimize the vapor film generated Can become that the thermal efficiency can be remarkably improved than before. Also, the panel body 10
By integrally forming the combustion chamber 3 and the tail pipe 4, the manufacturing cost can be reduced and the size can be reduced.

FIG. 3 is a schematic configuration diagram in which a liquid container 11 through which a liquid to be heated is passed is provided on the outer periphery of the panel body 10.
The liquid before heating flows into the liquid container 11 from the liquid inlet 11a of the liquid container 11, and as described above, the panel body 10
The liquid is heated by contacting the outer periphery of the liquid, and the heated liquid flows out from the liquid outlet 11b on the upper side.

Although the combustion chamber 3 and the tail pipe 4 are integrally formed by the panel body 10, the intake chamber 2
The tail pipe 4 may be formed integrally with the panel body, and the tail pipe 4 may be formed in the panel body 10 by being detoured in various patterns. The sectional shape of the tail tube 4 may be circular or polygonal. Further, the outer peripheral shape of the panel body 4 is not limited to a square, and may be formed in another shape. In FIG. 3, a flapper valve 5 for introducing air and not allowing exhaust gas to pass is provided on the inlet side of the intake chamber 2, and an ignition device 7 and a fuel for injecting fuel are provided on the combustion chamber side of the fuel pipe 6. A nozzle 8 is provided.

[0008]

According to the present invention, there is provided a pulse combustion apparatus in which air and fuel introduced through an intake chamber are pulse-burned in a combustion chamber, and exhaust gas is discharged through a tail pipe. By integrally forming the tube with a panel body with a large heat transfer area, the panel body plays the role of a fin, and the heat transfer area of combustion heat is greatly expanded as compared with the conventional case.
As a result, the vapor film generated at the contact portion with the liquid to be heated can be minimized, and the thermal efficiency can be remarkably improved as compared with the related art.

Further, the panel body is constituted by two panels on the left and right sides, and the combustion chamber and the tail pipe are formed inside in a state where the left and right panels are in close contact with each other.
There is an effect that the combustion chamber and the tail pipe can be formed by reducing the cost and making the panel compact by tightly joining the two panels.

[Brief description of the drawings]

FIG. 1 is a schematic front configuration diagram of a pulse combustion device.

FIG. 2 is a side view showing the configuration of FIG.

FIG. 3 is an overall configuration diagram in which a liquid container for containing a liquid to be heated is provided on the outer periphery of a panel body.

FIG. 4 is a schematic configuration diagram of a conventional pulse combustion device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pulse combustion apparatus 2 Intake chamber 3 Combustion chamber 4 Tail tube 5 Flapper valve 6 Fuel pipe 7 Ignition device 8 Fuel nozzle 10 Panel body 10a Left panel 10b Right panel 10c Joint 11 Liquid container 11a Liquid inlet 11b Liquid outlet

Claims (2)

[Claims] 1. A pulse combustion apparatus configured to pulse-burn air and fuel introduced through an intake chamber in a combustion chamber and discharge exhaust gas through a tailpipe, wherein at least the combustion chamber and the tailpipe are heat-transferred. A pulse combustion device, which is integrally formed by a panel body having a large area. 2. The panel body is composed of two left and right panels, and the combustion chamber and the tail pipe are formed inside the left and right panels in a state of being tightly joined to each other. 2. The pulse combustion device according to 1.