JPS5913470Y2 - vaporizing burner - Google Patents

Description

[Detailed description of the invention] This invention relates to a vaporization burner that burns a mixture of vaporized gas such as petroleum and air. The structure is simplified by forming a part of the flame hole and forming the emblem integrally with the flame hole.

In gas burners, the area of the passage was changed depending on the inclination of the flow, and the passage was of sufficient length to ensure uniform gas distribution.

However, in forced-air systems that premix most or all of the air and burn it, the mixture ratio is around 1, which is very likely to cause flashbacks, so it is necessary to increase the pressure inside the burner head. there were.

Therefore, the gas mixture is inevitably supplied at a high pressure, that is, at a considerable flow rate, so if this flow hits the flame hole uniformly, it will be ejected uniformly from the flame hole, but if it hits the flame hole in one direction,
The amount of ejection from that point increases, causing uneven flame distribution.

Therefore, in the case of a flowing air-fuel mixture, a throttle is installed to eliminate this flow.

Generally, the flame hole is configured in one stage, but in this embodiment, there is also one in which it is configured in two stages.

This is because a small diameter requires a large amount of combustion, but multistage not only increases the number of parts, but also increases the number of connections, slows down the temperature rise, and reliquefies the oil vaporized mixture. There is also a fear that

The present invention is intended to eliminate such drawbacks of the conventional art, and embodiments thereof will be described below with reference to the drawings.

In the figure, 1 is an upper burner head part forming a burner cap, and a flame hole 2 consisting of a large number of tooth grooves is formed on the lower surface of its periphery, and a flame holding groove 3 is formed by a flame holding projection 4 protruding in front of the flame hole. A top plate 6 is formed in the upper part in a concave shape, and consists of a straight part 5 extending approximately perpendicularly from the root of the tooth.

Reference numeral 7 designates a lower lower burner head section on which the upper burner head section 1 is placed, and the flame hole 8.7 has a large number of tooth grooves on the upper surface of its peripheral edge. and a flame-holding protrusion 10 forming a flame-holding groove 9, and a direct part 11 vertically lowered from the inner wall of the flame hole 8, and a straight part 5 of the upper burner head part 1 and a lower burner head. The straight portion 11 of the portion 7 forms a rectifying gap 12 that substantially regulates the flame hole load.

The flame holes 2 and 8 are arranged in a staggered manner in two stages, upper and lower, due to the relationship between the tooth grooves.

Reference numeral 14 denotes a throttle body, which has a narrow gap 16 in the top plate 6 and a vertical throttle opening 15, and is formed integrally with the lower burner head portion 7.

Reference numeral 18 denotes a heating element made of a sheathed heater or the like which is approximately half-cast in the burner stand 19. The lower burner head section 7 is placed so as to enclose the exposed half of the heating element 18, and Flange 13 and flange 2 of burner stand 19
0, it is fixed with a screw 22.

17 is a screw for fixing the upper burner head section 1 to the throttle body 14.

21 is a vaporization mixing chamber inside the burner stand 19.

Next, the action will be explained.

The vaporizing motor (not shown) and the heating element 18 are energized to perform preheating.

After that, oil is supplied to the vaporization chamber and vaporized, and the vaporized gas is mixed with the air that is supplied at the same time and moves into the vaporization mixing chamber 2.
1 to the aperture 15 of the aperture body 14, it is rectified in the vertical direction, collides with the top plate 6, is uniformly applied to the rectification gap 12, and is ejected from the flame holes 2 and 8 to be burned.

By the way, since the throttle body 14 and the lower burner head part 7 are integrally constructed, at the time of ignition, the heat of the heat generating body 18 is applied to the throttle body 14 to the same extent as the flame hole 8, and the preheating rise in the throttle body 14 is prevented. The vaporized gas does not become liquefied early in the throttle body 14.

Also, during use, the heat received from the flame of the lower burner head section 7 is conducted to the throttle body 14, so a sufficiently high temperature can be obtained.
Mixed gas can be preheated.

Moreover, the flame hole 8 is cooled conversely and is advantageous in terms of material.

In addition, not only is the number of parts reduced by one, but the aperture body 14
By fixing the upper burner head part 1 with screws 17 or the like, it can be easily fixed as a burner body, and the structure is very easy.

As described above, according to the present invention, the temperature rises quickly at the throttle body during ignition, there is no fear that the vaporized gas will liquefy at the throttle body, and good ignition characteristics can be obtained.

Even during subsequent combustion, there is no risk of liquefaction at the throttle body due to heat transfer from the flame hole to the throttle body.

It goes without saying that by providing the restrictor, the supply distribution of the mixed gas to each flame hole is made uniform, and the flame length is made uniform.

[Brief explanation of the drawing]

The figure is a half-cut side view of a burner head in an embodiment of the present invention. 1... Upper burner head part, 2... Flame hole, 3... Flame holding groove, 6... Top plate, 7...
... lower burner head section, 8 ... flame hole, 9.
... Flame holding groove, 12 ... Rectification gap, 14.
...Aperture body, 15...Aperture mouth, 17...
...Screw, 18. ... Heat generation.

Claims (2)

[Scope of utility model registration request] (1) Equipped with a burner stand that has a mixed gas path inside which a mixed gas of vaporized gas such as kerosene and air passes, and a burner head that is placed on the burner stand, and the burner head has a lower burner head and an upper burner The head part is placed on top of the burner head part, and a large number of flame holes are formed at the joint peripheral edge.A heating element is provided at the joint part of the lower burner head part and the burner stand, and the lower burner head part is equipped with a flame hole inside the burner stand. A vaporizing burner characterized by integrally forming a restricting body that restricts a passage from a mixed gas passage to a flame hole of a burner head. (2) Registration of a utility model in which the upper and lower burner heads are combined by connecting the aperture body of the lower burner head and the top plate of the upper burner head that faces it at a distance using connecting means such as screws. A vaporizing burner according to claim 1.