JPS632731Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a liquid fuel combustion device, in particular, the liquid fuel is fed under pressure to a vaporizer, heated and vaporized by a heater attached to the vaporizer, vaporized gas is ejected from a nozzle, and is combusted on a burner. The present invention relates to an improvement of the mounting fittings of the vaporizer in the device.

In the case of the above-mentioned combustion device, the axis of the burner mixing tube and the axis of the nozzle must be aligned in order to form a combustible mixed gas in the burner mixing tube by suctioning primary air using the energy of vaporized gas injection from the nozzle. Needless to say, this is extremely important in assembly work.

Conventionally, as shown in Fig. 1, when this type of combustion device is installed in a water heater, a burner 1 having a large number of flame ports 11 is generally fixed to a combustion chamber 21 of a water heater 2 with a burner ring 3. On the other hand, the burner mixing pipe 12 of the burner 1 is arranged so that the vaporized gas of kerosene is ejected from the vaporizer 4 equipped with the heater 41 into the burner mixing pipe 12 from the nozzle 51 of the ejection pipe 5. , a damper device 7 is provided which uses a mounting bracket 6 whose one end is fixed to the outer cylindrical cover 22 of the water heater 2 to place and fix the vaporizer 4 on the mounting bracket 6, and adjusts the amount of primary air. The burner mixing tube 12 was aligned with the axis of the axial center nozzle 51 via the axial center of the burner mixing tube 12.

However, such an assembly method is often affected by dimensional variations such as the longitudinal and lateral inclination of the burner mixing tube 12, the dimensional accuracy of the outer cylinder cover 21, and the dimensional accuracy of the mounting bracket 6 of the carburetor 4. Therefore, individual assembly adjustments, that is, extremely troublesome dimensional control during work, are required, and as a result, the combustion condition is also adversely affected.

In contrast, the present invention provides a combustion device that eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to the drawings.

Reference numeral 13 denotes a single plate-shaped pedestal, and a mounting bracket 8 having a U-shaped cross section and a groove 81 formed in a part to match the shape of the carburetor 4 is attached by spot welding, screws, etc. It is erected and fixed by. Note that a hole 82 for suppressing heat conduction from the vaporizer 4 is provided in a part of the mounting fitting 8.

The pedestal 13 is also equipped with a damper device 9 that adjusts the amount of primary air into the mixing pipe 12 of the burner 1 by combining two discs 91 with several fan-shaped adjustment holes 92. It is provided. It goes without saying that one of the two discs 91 may be formed by directly drilling several fan-shaped adjustment holes 92 in the base 13.

Therefore, when installing the carburetor 4, if the carburetor 4 is cylindrical as shown in the drawing, the mounting bracket 8
The carburetor 4 is placed perpendicularly to the U-shaped groove 81 provided in the pedestal 13, and the carburetor 4 is tightened and fixed to the pedestal 13 from above using the mounting band 10, and at this time,
The jet pipe 5 is inserted through a hole 93 provided in the center of the damper device 9, and the nozzle 51 is inserted into the burner mixing pipe 12, which has an end 121 attached to the pedestal 13 on the opposite side of the damper device 9. By letting
These integrated combustion devices can be installed with the burner 1 side inserted into the combustion chamber 21 of the water heater 2.

In this way, in the liquid fuel combustion device of the present invention, liquid fuel is force-fed to a vaporizer, heated and vaporized by a heater attached to the vaporizer, and then ejected from a nozzle and burned in a burner. Attach a pedestal equipped with a damper device for primary air adjustment to the pedestal, attach a mounting bracket to the pedestal, and fit the cylindrical outer peripheral surface of the carburetor into the groove formed in the bracket to mount the carburetor. By positioning and fixing the burner mixing tube, the carburetor can be installed without any problems even if the inclination dimension of the burner mixing tube varies slightly. This can be done accurately with a slight rotation of the cylinder, and therefore a good combustible mixture can be obtained at all times and stable combustion can be maintained.

Furthermore, the present invention is not limited to the shape of the combustion device shown in the drawings, and it goes without saying that it can be applied to a wide range of applications, including water heaters, as well as commercial and domestic heating equipment. .

[Brief explanation of the drawing]

FIG. 1 is a partial schematic diagram showing a conventional liquid fuel combustion device installed in a water heater as an example;
Fig. 2 is a right side view of the conventional liquid fuel combustion device shown in Fig. 1, Fig. 3 is an exploded perspective view of the liquid fuel combustion device of the present invention, and Fig. 4 is an example of the liquid fuel combustion device of the present invention used in a water heater. It is a partial schematic diagram showing that it is attached. 4... vaporizer, 5... jet pipe, 13... pedestal,
8...Mounting bracket, 9...Damper device, 12...Burner mixing pipe.

Claims (1)

[Scope of utility model registration request] Liquid fuel is force-fed to a vaporizer, heated and vaporized by a heater attached to the vaporizer, and ejected from a nozzle and burned by a burner, in which the vaporizer has a cylindrical outer periphery, and the vaporizer has a cylindrical outer periphery, The nozzle is integrally provided in the vaporizer, the burner has a burner mixing pipe for mixing the vaporized fuel ejected from the nozzle with primary air, and the burner mixing pipe has an air inlet side end that includes: A pedestal equipped with a damper device for adjusting the amount of primary air is installed, a mounting bracket having a groove for attaching the carburetor is fixed to the pedestal, and the outer periphery of the carburetor is fitted into the groove of the mounting bracket. and pressing the outer peripheral surface of the carburetor against the groove of the mounting bracket using a mounting band, thereby fixing the attitude of the carburetor so that the nozzle faces the air inlet side end of the burner mixer. A liquid fuel combustion device featuring: