JPH0525118U - Liquid Fuel Combustor Vaporizer - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vaporizer for a liquid fuel combustion apparatus that eliminates combustion defects and extends the life of the materials used. [Structure] Burner 5 having a plurality of burner heads 8
And a carburetor 30 which is arranged independently of the burner 5 and has a heat recovery head 32. The heat recovery head 32 has a tip 32
A flame holding ring 33 is formed at the upper part of one burner head 8 so as to surround the combustion flame 10 in A, and the base end portion is attached to the carburetor body 31.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vaporizer for a liquid fuel combustion device such as an oil fan heater or an oil hot air heater.

[0002]

[Prior Art]

 A conventional liquid fuel combustion device will be described with reference to the drawings. FIG. 4 is a front sectional view showing the structure of a conventional liquid fuel combustion apparatus, FIG. 5 is a partially cutaway external perspective view of a carburetor, and FIG. 6 is a front sectional view thereof.

In FIG. 4, 1 is an oil tank, 2 is an oil feed pump, 3 is a vaporizer, 4 is a jet nozzle, 5 is a burner, 8 is a burner head, 20 is an oil supply tank, and 21 is a main body.

The liquid fuel sent from the oil tank 1 to the vaporizer 3 via the oil feed pump 2 and the oil feed pipe 17 is vaporized by the vaporizer 3 heated by the heater 15, and is vaporized from the jet nozzle 4 into vaporized gas. It spurts out. Then, it goes into the mixing pipe 6 provided at the inlet of the burner 5, mixes with the combustion air 7, passes through the burner head 8, and enters the combustion chamber 9 provided at the upper part of the burner head. Here, an igniter or the like (not shown) is ignited to form a combustion flame 10. Then, the combustion gas reaches the heat converter 12 through the combustion cylinder 11, the combustion heat is heat-exchanged, and the interior of the room is heated by the blowing of the warm air blower (not shown).

A flame holding ring 14 is disposed so as to project on the outer periphery of the upper portion of each burner head 8. The flame holding ring 14 concentrates the combustion flame 10 above the burner head 8 and guides it so as to enter the combustion cylinder 11, and also prevents the combustion flame 10 from spreading in the lateral direction of the combustion chamber 9.

A heat recovery head 13 is provided above the vaporizer 3 so as to project above the burner head 8. A part of the combustion flame 10 arranged upward by the flame holding ring 14 at the upper part of the burner head 8 directly heats the heat recovery head 13 and transfers the heat to the carburetor 3, so that the liquid fuel in the carburetor 3 is transferred. It is configured to vaporize. During the combustion, the heater 15 is energized by the heat capacity of the heat recovery head 13 where the conduction heat is insufficient to keep the vaporization temperature of the vaporizer 3 constant. That is, the heater 15 plays an auxiliary role for the heat recovery head 13. In the figure, 16 is a flame hole, 18 is a solenoid valve, and 19 is a heater thermistor.

[0007]

[Problems to be solved by the device]

 However, in the conventional vaporizer, the heat recovery head is installed so as to project into the combustion flame, which results in disturbance of the flow for complete combustion of the combustion flame, resulting in red combustion or incomplete combustion. It was a cause of poor combustion. In addition, the heat recovery head has a high temperature, which shortens the life of the material.

The present invention was devised in view of the above circumstances, and an object thereof is to provide a vaporizer for a liquid fuel combustion apparatus that eliminates defective combustion and extends the life of the material used.

[0009]

[Means for Solving the Problems]

 A vaporizer for a liquid fuel combustion apparatus according to the present invention comprises a burner having a plurality of burner heads, and a vaporizer having a heat recovery head arranged independently of the burners, and The heat recovery head is located on the top of one burner head so that the outer wall of the tip part surrounds the combustion flame and forms a flame holding ring, and the base end part is attached to the carburetor body so that heat can be conducted. It is characterized by being.

[0010]

【Example】

 An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is a front sectional view showing the structure of a liquid fuel combustion apparatus (hereinafter referred to as the apparatus of the present invention), FIG. 2 is a partial cutaway perspective view of a vaporizer of the apparatus of the present invention, and FIG. The same parts as in the prior art are designated by the same reference numerals.

The device of the present invention is the same as the conventional liquid fuel combustion device except that the structure of the vaporizer 30 is different. The vaporizer 30 includes a vaporizer body 31 and a heat recovery head 32.

The heat recovery head 32 is made of the same metal as the carburetor main body 31 and is a plate-like body having a cylindrical tip 32A and a base end 32B capable of conducting heat to the upper part of the carburetor main body 31. It is fixed.

As shown in FIG. 2, the tip portion 32 A is located above one burner head 8 which is closer to the vaporizer 3. The outer wall of the tip portion 32A includes the outer periphery of the flame hole 16 of the burner head 8 and is provided so as to surround the combustion flame ejected from the flame hole 16, and the flame retaining ring 33 is formed by the outer wall.

Next, the operation of the device of the present invention will be described. The liquid fuel delivered to the vaporizer 30 obtains heat of vaporization from the vaporizer main body 31 heated by the heater 15 and the vaporization element 34 mounted on the vaporizer 30, vaporizes, and jets from the jet nozzle 4. The jetted vaporized fuel draws in the combustion air 7 and enters the mixing tube 6, and becomes a mixing gas to form a combustion flame 10 on the plurality of flame holes 16 formed in the burner head 8 of the burner 5. The combustion flame 10 is adjusted upward by the flame holding ring 14 (on the left side in FIG. 2) and surely enters the combustion cylinder 11.

Since the flame holding ring 33 of the heat recovery head 32 is formed so as to surround the other combustion flame 10 described above, it acts similarly to the flame holding ring 14, and the combustion flame 10 is concentrated upward. The spread of the burning flame 10 is suppressed. The flame holding ring 33 is heated to a high temperature by conducting the combustion heat over the entire circumference. Therefore, the amount of heat conduction to the carburetor main body 31 increases, and the heat is rapidly conducted to serve as a heat source for vaporizing liquid fuel.

Therefore, the vaporization heat can be sufficiently recovered, and the heater 15 may be turned on occasionally during combustion with normal heat as an auxiliary, and it is not necessary to turn on the heater 15 during high heat.

In the above embodiment, the heat recovery head 32 is separate from the carburetor main body 32, but it goes without saying that this may be integrated with the carburetor main body 31.

[0018]

[Effect of the device]

 As described above, the carburetor of the liquid fuel combustion apparatus according to the present invention forms the flame holding ring at the top of one burner head so that the tip surrounds the combustion flame. , A heat recovery head whose base end is attached to the carburetor body so that heat can be conducted. Therefore, the combustion flame becomes a clean flame by complete combustion, and the heat recovery head is not directly exposed to the flame, so the life of the material used is extended. Further, since the vaporization heat recovery is improved, there is an advantage that the heater energization time can be reduced and energy can be saved.

[Brief description of drawings]

FIG. 1 is a front sectional view showing the structure of the device of the present invention.

2 is a partially cutaway external perspective view of the vaporizer of the device of the present invention. FIG.

FIG. 3 is a front sectional view of a vaporizer of the device of the present invention.

FIG. 4 is a front sectional view showing the structure of a conventional liquid fuel combustion apparatus.

FIG. 5 is a partially cutaway external perspective view of a conventional vaporizer.

FIG. 6 is a front sectional view of a conventional vaporizer.

[Explanation of symbols]

 5 Burner 8 Burner head 10 Combustion flame 14 Flame holding ring 16 Flame hole 30 Vaporizer 31 Vaporizer body 32 Heat recovery head 32A Tip 33 Flame holding ring

Claims (1)

[Scope of utility model registration request] 1. A burner having a plurality of burner heads, and a vaporizer having a heat recovery head arranged independently of the burner, wherein the heat recovery head is
The outer wall of the tip portion is located above the burner head so as to surround the combustion flame to form a flame holding ring, and the base portion is attached to the carburetor body so as to be able to conduct heat. Vaporizer for liquid fuel combustion equipment.