JPS6210566Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an oil vaporization device, and more particularly to an oil vaporization device suitable for stably ejecting vaporized oil from a nozzle ejection portion.

FIG. 1 is an explanatory diagram showing a conventional petroleum vaporizer 1 coupled to a burner 2. As shown in FIG. The liquid petroleum that flows into the vaporization chamber 4 from the fuel filler joint 3 is vaporized by the heating action of the electric heater 5 provided in the vaporization chamber 4, as shown in FIG. The gas is ejected in a vaporized state from the ejection part 7 of the nozzle 6 which is communicated with the burner 2 side.

According to such a conventional oil vaporizer 1, petroleum as a liquid fuel can be supplied to the burner 2 in a vaporized state, and can be burned with blue flame and with small combustion noise, similar to gaseous fuel.

However, in such a conventional petroleum vaporizer 1, impurities contained in the composition of petroleum and carbides generated due to improper temperature control in the vaporizing chamber 4 are removed from the nozzle 6. It adheres and accumulates on the spouting part 7. These adhesion and deposition phenomena can be alleviated to some extent by proper temperature control in the vaporization chamber 4, but in the long term they accumulate and gradually narrow the opening area of the ejection part 7 and become clogged, causing combustion in the burner 2. There is a risk that the amount may gradually decrease and the resulting backfire may occur.

Therefore, conventionally, as shown by the two-dot chain line in FIG. Measures have been adopted to prevent such blockage by removing such substances.

However, it is impossible to completely remove the deposits by the above means, and deposits corresponding to the clearance between the diameter of the spouting part 7 and the outer diameter of the needle rod 8 may remain, or There is a possibility that the caliber will expand due to wear. Further, manual operation of the needle rod 8 does not meet the demands for automation of combustion control, and electromagnetic operation has problems such as difficulty in operating force and heat resistance of the operating part.

This idea was created in view of the above-mentioned conventional problems, and it is an oil that can automatically remove adhesion and deposits from the nozzle jetting part and stably jet petroleum in a vaporized state from the nozzle jetting part. The purpose is to provide a vaporization device.

This invention is an oil vaporizer that vaporizes oil using a first electric heater in a vaporization chamber and blows out the vaporized oil from a nozzle spouting part. This is what I did.

Hereinafter, embodiments of this invention will be described with reference to the drawings.

FIG. 3 is an explanatory diagram showing an embodiment of the oil vaporization apparatus according to this invention, and FIG. 4 is an explanatory diagram showing an enlarged main part of the same. The vaporization chamber 11 is formed by integrally joining a bottomed long cylindrical lower member 12 and a short cylindrical upper member 13 via a substantially ring-shaped intermediate member 14 without a gap. Lower member 1
A fuel filler joint 15 for introducing liquid petroleum into the vaporization chamber 11 is connected to the bottom side of the tank 2, and a cylindrical first electric heater 16 is provided inside the vaporization chamber 11 to heat and vaporize the liquid petroleum. is inserted through it with a slight gap. A holding hole 17 that supports the upper side of the first electric heater 16 is formed in the center of the intermediate member 14, and a plurality of communication holes 18 are formed around the holding hole 17. A temperature detector 19 is embedded in the intermediate member 14 from the outside, and the temperature detector 19 detects that the atmospheric temperature in the vaporization chamber 11 is raised to a temperature sufficient to completely vaporize the oil due to the preheating operation of the first electric heater 16. When the temperature is detected, oil is supplied from the oil filler joint 15.

A cover 20 is attached to the upper end of the vaporization chamber 11 so that the petroleum vaporized in the vaporization chamber 11 is led to an outflow port 22 formed in an outwardly protruding portion of the intermediate member 14 through a flow path 21. It's getting old. A nozzle holder 23 is connected to the outlet portion 22, and the outer circumference of the tip of the nozzle holder 23 includes:
Mixing tube 2 connected to a burner (not shown)
One end of 4 is fixed. Nozzle holder 2
The proximal end of the nozzle 25 is screwed to the distal end of the nozzle 3.
The cylindrical body of the nozzle 25 projects into the mixing tube 24 . A spouting portion 26 is provided at the tip of the nozzle 25 to spout vaporized petroleum into the mixing pipe 24 .

Further, a second electric heater 27 is attached to the outer periphery of the nozzle 25 . As shown in FIG. 5, the second electric heater 27 has a printed heater 29 formed on the circumferential surface of a ceramic cylindrical body 28, and its lead wire 30 is drawn out from one end of the mixing tube 24. It is. The second electric heater 27 operates only during the preheating operation time of the first electric heater 16 by a timer or the like from the start of operation of the first electric heater 16, and the nozzle 2
The main body of No. 5 and the spout 26 are heated to about 600° C. to ash the carbides and the like that have adhered to and accumulated on the spout 26.

Next, the operation of the above embodiment will be explained. When starting up the oil vaporizer, the first electric heater 16
And the second electric heater 27 starts operating at the same time. The first electric heater 16 starts heating the vaporizing chamber 1 during a preheating operation time of about 3 minutes from the start of operation.
A preheating operation is performed to raise the temperature of the atmosphere inside 1 to a temperature at which oil can be completely vaporized. The second electric heater 27 operates as described above in parallel with the preheating operation of the first electric heater 16, and the nozzle 2
The carbide, etc. attached and deposited on the spouting part 26 of No. 5 is ashed.

When the temperature detected by the temperature detector 19 reaches around 250°C and the preheating operation of the first electric heater 16 is completed, oil is supplied from the oil filler joint 15 and the temperature inside the vaporizing chamber 11 is raised. liquid petroleum was introduced. The petroleum introduced into the vaporization chamber 11 enters the gap between the lower member 12 and the first electric heater 16, is heat exchanged by the first electric heater 16, and enters the flow hole portion 1 of the intermediate member 14 in a gas-liquid mixed state.
8, further enters the gap between the upper member 13 and the first electric heater 16, and the first electric heater 1
6, and is completely vaporized.

The vaporized petroleum is ejected from the upper part of the vaporization chamber 11 through the flow passage 21, the outlet part 22, the nozzle holder 23, and the ejection part 26 of the nozzle 25, and is then ejected by an appropriate burner connected to the mixing pipe 24. It is constantly burned. Here, the petroleum that is first vaporized at the time of startup removes carbide, etc. in the spouting part 26 which is incinerated by the second electric heater 27.
It is blown away by the ejection action and removed from the ejection part 26, and is completely incinerated in a burner connected to the mixing pipe 24.

According to the above embodiment, when the oil vaporizer is started, the main body of the nozzle 25 and the spouting part 26 are automatically heated, and the carbides etc. that have adhered and accumulated in the spouting part 26 are incinerated, and the The ashed carbide etc. can be blown away to the burner side by the vaporized petroleum that is first ejected. Therefore, there is no need to clean the ejection part 26 of the nozzle 25 even after long-term use, and it is possible to prevent a gradual decrease in the amount of combustion and the occurrence of a fire due to backfire of the burner.

As described above, in the oil vaporizer according to this invention, a cylindrical electric heater is attached to the outer periphery of the nozzle that spouts out vaporized oil, so that it automatically removes the adhesion and deposits from the nozzle jetting part. This has the effect of being able to remove oil and stably eject vaporized oil.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional oil vaporizer and a burner connected together, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, and Fig. 3 is an illustration of an oil vaporizer according to this invention. FIG. 4 is an enlarged cross-sectional view showing the main parts of the embodiment, and FIG. 5 is a perspective view showing the second electric heater taken out. 11... vaporization chamber, 16... first electric heater,
25...Nozzle, 26...Ejection part, 27...Second
Electric heater.

Claims (1)

[Scope of utility model registration request] In an oil vaporization device that vaporizes oil by a first electric heater in a vaporization chamber and spouts the vaporized oil from a nozzle spouting part, a cylindrical second electric heater is attached to the outer periphery of the main body of the nozzle close to the tip of the nozzle. and means for operating the second electric heater within the preheating operation time of the first electric heater.