JPH08582Y2 - Vaporization Bunsen burner - Google Patents

Description

[Detailed Description of the Invention] Industrial Application The present invention relates to a kerosene gasification Bunsen burner when gasifying kerosene is ejected from a nozzle, primary air is sucked by the jet flow of the nozzle, and premixed gas is combusted. is there.

2. Description of the Related Art A conventional vaporization Bunsen burner of this type will be described with reference to FIG.

In the figure, 1 is a vaporizer, 2 is a nozzle connected to the tip of the vaporizer 1, 3 is a Bunsen burner provided in front of the nozzle 2, 4 is a kerosene tank, 5 is kerosene from the kerosene tank 4 to the vaporizer 1. Is a pump for sending.

The nozzle 2 is connected to the carburetor 1 by a screw portion 6 and is gas-sealed by a seal portion 7. A jet port 8 is provided at the tip of the nozzle 2, and the vaporized gas sent from the vaporizer 1 is jetted to the burner 3 in FIG. A nozzle cleaning rod 9 is movably inserted into the nozzle 2, and the nozzle cleaning rod 9 is operated at the time of ignition and extinguishing to remove the tar attached to the ejection port 8.

The ejection port 8 usually has a diameter of 1 mm or less, and it is important to center it with the nozzle cleaning rod 9. When the centering is incomplete, the tip of the nozzle cleaning rod 9 is broken due to repeated movements. Therefore, in the prior art, first, the center of the nozzle cleaning rod 9 is automatically adjusted by the centering guide hole 10 and the tapered portion 11 of the nozzle cleaning rod 9, and then the tip of the nozzle cleaning rod 9 is inserted into the ejection port 8.

The first drawback of the above-mentioned prior art is that the gap between the centering guide hole 10 and the nozzle cleaning rod 9 is small when the nozzle cleaning rod 9 is closed (the open state is shown in the figure). When the tar component entered, it was fixed.

A second drawback of the prior art is that the driving force of the nozzle cleaning rod 9 is strengthened in order to enhance the returning force of the nozzle cleaning rod 9 by a strong spring (not shown) in order to supplement the above-mentioned first drawback. Therefore, it was a factor of cost increase.

Means for Solving the Problems The present invention has been made to eliminate the above-mentioned drawbacks of the prior art. A centering ring having a guide part in the center and a gas passage around the guide part is formed by another material, and the centering ring is formed in the nozzle. By inserting it inside, the contact area between the nozzle cleaning rod and the centering ring is reduced, and the adhesion force due to tar is reduced.

Action The sticking force of the nozzle cleaning rod due to tar is determined by the product of the area of the portion in contact with the centering guide hole and the shear fracture stress of the tar itself.

Therefore, by reducing the contact area, the above-mentioned drawbacks of the prior art can be eliminated.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a concrete example of a nozzle structure according to the present invention.

In the figure, the nozzle 2 is fastened to the tip of the carburetor 1 by a screw portion 6, and a jet port 8 is provided at the tip. Further, a centering ring 12 is provided in the nozzle 2 as a separate material.

FIG. 2A is a sectional view of the centering ring 12.
The centering ring 12 is fixed to the inner wall of the nozzle 2 by press fitting, and has a guide portion 13 of the nozzle cleaning rod 9 in the center and a gas passage 14 around the guide portion 13.

Further, FIG. 2 (b) is a view taken along the arrow A of FIG. 2 (a),
If there are at least three guide portions 13 (four in the figure), the core of the nozzle cleaning rod 9 can be taken out.

The present invention has the above-described structure, and includes a vaporizer 1 to a nozzle 2
The vaporized gas flowing therein is jetted into the burner 3 from the jet port 8 of the nozzle 2, and the jet flow sucks the primary air into the burner 3 to burn the premixed gas.

Further, the nozzle cleaning rod 9 moves to the left and right at the time of ignition and extinguishment, enters and exits the ejection port 8 of the nozzle 2, and removes the tar adhering to the ejection port 8.

At this time, in the present invention, since the nozzle cleaning rod 9 moves left and right along the guide portion 13 of the centering ring 12, the contact surface with the centering ring 12 is greatly reduced, and the nozzle cleaning rod 9
It is possible to improve the returning force and the shear fracture stress of tar.

The contact area with this centering ring 12 is the centering ring.
By providing the gas passage 14 in 12, the size can be further reduced, and the operation of the nozzle cleaning rod 9 can be further ensured.

Next, FIGS. 3 (a) and 3 (b) show another embodiment of the present invention, in which a taper portion 15 is formed on the side surface of the centering ring 12 and a slit 16 is provided therein. According to this, the centering ring 12 can be fixed in the nozzle 2 by utilizing the spring force of the tapered portion 15. It should be noted that one or more slits 16 are provided.

Advantageous Effects of Invention The first effect of the present invention is that the sticking force of the nozzle cleaning rod due to tar is greatly reduced, so that the trouble of the sticking force can be prevented.

The second effect is that the driving force of the nozzle cleaning rod can be reduced due to the drastic reduction of the fixing force, and the cost of the driving device can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention, and FIGS. 2 (a), (b) and FIGS. 3 (a), (b) are sectional views and side views of the centering ring, FIG. 4 is a conventional partial sectional view,
FIG. 5 is a layout of a combustor using the same vaporization Bunsen burner. In the figure, 1 is a vaporizer, 2 is a nozzle, 9 is a nozzle cleaning rod, 12 is a centering ring, 13 is a guide part, and 14 is a gas passage.

Claims (2)

[Scope of utility model registration request] 1. A nozzle cleaning rod (9) for connecting a nozzle (2) to a vaporizer (1) for vaporizing kerosene, and for cleaning an ejection port (8) of the nozzle (2) in the nozzle (2). A vaporized Bunsen burner, which is movably inserted, characterized in that a centering ring (12) having a guide portion (13) of a nozzle cleaning rod (9) is provided in the nozzle (2). 2. The centering ring (1) according to claim 1,
The taper part (15) and the slit (16) are provided on the side surface of 2), and the centering ring (12) is press-fitted and fixed in the nozzle (2) by utilizing the spring force of the taper part (15). Evaporative Bunsen burner.