JPS60259808A - Vaporizing device - Google Patents

Abstract

PURPOSE:To shorten the preheating time to quickly realize an ignitable condition by disposing a fuel vaporizing chamber by means of heating by an electric heater as well as a vaporizing chamber by means of burning heat. CONSTITUTION:When a vaporizer 11 reaches a predetermined temperature by an electric heater 27, the fuel supplying mechamism is actuated by a signal from a temperature sensor 34 to cause kerosene to be injected from a fuel injection port 45a to enter a vaporizing chamber 43. It falls down to enter a vaporizing chamber 24 from an opening 24a in tis liquid state, and then heated in a vaporizing chamber 11 to become gasified. The fasified kerosene is pressurized in a bend 25 between a nozzle body 13 and a vaporizing chamber plate 23 and a guide 22. It is also raised in temperature, and enters from a communicating hole 15 to a communicating hole 14 in the nozzle 13 to be injected out of an injection port 16 of a burner 51 to the interior of an outlet tube 56. It is then led from a gas chamber frame 55 through multiple holes 53 in a burner body 54 to the outside for ignition and burning. When the temperature of the burner 51 is increased due to burning, an outer plate 42 is heated through a heat guide plate 57 to allow the vaporization to be done in the vaporizing chamber 43, and at the same time, the heater 27 is turned off by a signal from the sensor 34 so that the vaporizing chamber 43 may be maintained at the predetermined temperature for the continuous gasification and injection.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a vaporizer that vaporizes and burns liquid fuel.

[Technical background of the invention and its problems]

Conventionally, when liquid fuel such as kerosene is ejected from a nozzle to be combusted by vaporizing it, a fuel supply port body is connected to the nozzle via a vaporizer, but the vaporizer is
For example, in addition to inserting a heating medium and a pressurizing material into the vaporizing tube, a sheathed heater and a heat receiving section from the combustion section are installed along the vaporizing tube, and the combustion inside the vaporizing tube is heated and vaporized by the heater, and then ejected from the nozzle. At the same time, the fuel is ignited and combusted, and during combustion, the heat of combustion is received by the heat receiving section to perform vaporization.

However, when using such a device, the prediction%! One hour is long, the start-up is slow, and the fuel path is easily clogged by heavy components (tar-like substances) that precipitate when the fuel is vaporized.

[Purpose of the invention]

The present invention aims to solve the above-mentioned problems.
The purpose of this is to shorten the preheating time so that it can be quickly ignited, and to increase the durability against heavy fuel components.

[Summary of the invention]

The vaporization device of the present invention includes a first vaporization chamber that is communicated with the nozzle, vaporizes the fuel by heating the electric heater, and supplies vaporized gas to the nozzle;
A second vaporization chamber that vaporizes the fuel using the combustion heat of the fuel and supplies vaporized gas to the nozzle via the first vaporization chamber, and a fuel supply foil provided in the second vaporization chamber. It is characterized by the fact that when combustion starts, it vaporizes in the first vaporization chamber and 1
), the fuel is vaporized in the second vaporization chamber during combustion.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Reference numeral 11 denotes a carburetor body formed into a substantially flat plate shape, and a nozzle 12 is installed in the lateral direction in the middle of one side of this carburetor body 11.
I'm being treated. In this nozzle 12, a nozzle body 13 having an approximately semicircular cross section is integrally formed with a carburetor body 11, and a communication hole 14 is formed in the axial direction in this nozzle body 13, and a middle upper part of the communication hole 14 is formed in the nozzle body 13. A communication hole 15 is formed, and a jet 11 hole 71 is formed at the tip of the nozzle body 13 *y, i part.
A spout body 17 to the right of 16 is attached 1-J, and a tube body 18 is connected to the rear part of the nozzle body 13.
8 from inside the flow hole 14 of the nozzle body 13 and the jetting body 1
A needle shaft 19 is movably moved forward and backward in the axial center of the tube body 18, and a mechanism 20 and a gas relief pipe joint 21 are attached to the rear of the tube body 18. has been set up.

A vaporization chamber plate 23 having an arcuate guide portion 22 corresponding to the outside of the nozzle body 13 is attached along the outer side of one side of the vaporizer main body 11, and the vaporization chamber plate 23 and the outer surface of the vaporizer main body 11 and A flat first vaporizing chamber 24 is provided along one side of the vaporizer main body 11 between the outer surface of the nozzle main body 13 and the outer surface of the nozzle main body 13 .
is formed, and a terminal end of a bent portion 25 along the outside of the nozzle body 13 of the first vaporization chamber 24 communicates with the communication hole 15 .

A plate-shaped electric heater 27 is in contact with the other side of the vaporizer main body 11, and a heater holding plate 2 is attached to the outer surface of the electric heater 27.
8 is in contact with the heater holding plate 28, and a spring plate 2 is placed on the outside of the heater holding plate 28.
A heater cover 30 is provided via 9, and the upper and lower portions of this heater cover 30 are fixed with screws 32 to mounting portions 31 formed at the upper and lower portions of the carburetor main body 11.
An electric heater 27 is pressed into contact with.

Also, there is a sensor on the top of one side of the vaporizer main body 11.
A temperature sensor 34 for controlling the supply of the electric heater 27 and the liquid fuel J'l is attached to the sensor attachment section 33.

One side edge of the carburetor main body 11 is integrally joined to one surface of a substrate 41 at right angles, and on the other surface of this substrate 41, an outer plate 42 that is bulged outward leaving an edge is attached. A flat second vaporizing chamber 43 is formed between the substrate 41 and the outer plate 42, and the inner surface of the outer plate 42 of the second vaporizing chamber 43 is connected to the heat receiving surface 44. At the same time, one side opening 2 of the first vaporization chamber 24 is connected to the second vaporization chamber 43.
4a are in communication. Further, a fuel 1 supply port body 45 is connected to the upper part of the substrate 41 through the second vaporization chamber 43, and a spout 45 is narrowed at the tip of this fuel supply body 45.
a is formed. Note that mounting holes 47 are formed at the four corners of the outside plate 42.

Also, in Fig. 10, 51 is a burner, and this = 5
- The barb 51 is provided with a combustion port body 54 that defines a large number of through holes 53 in the burner frame 52, and
A gas chamber frame 55 that communicates with the combustion port body 54 is attached to the lower part of the burner frame 55, and a blower outlet pipe 56 with one end open is provided in the gas chamber frame 55. A plate 57 is extended.

The outer plate 42 of the second vaporization chamber 43 is brought into contact with this heat conductive plate 57 and fixed through the holes 47 at the four corners thereof, and the spout body 17 of the nozzle 12 is is made to face the frontage of the blowout cylinder 56.

Next, the operation will be explained.

During combustion, when the electric heater 27 is energized to generate heat, the vaporizer main body 11 is heated and its temperature rises.

When the carburetor body 11 reaches a predetermined temperature, a signal from the temperature sensor 34 activates a fuel supply mechanism (not shown), and kerosene as liquid fuel is jetted out from the spout 45a of the fuel supply port body 45. The liquid enters the second vaporizing chamber 43 between the substrate 41 and the outer plate 42, and falls as it is into the first vaporizing chamber between the vaporizer main body 11 and the vaporizing chamber plate 23 through the opening 24a in a liquid state. 24 enters 6-, is heated by the vaporizer main body 11, and its temperature rises,
Gasification. This gasified kerosene is pressurized by the bending part 25 between the nozzle body 13 and the guide part 22 of the vaporization chamber root 23, further increases in temperature, enters the circulation hole 14 in the nozzle body 13 through the communication hole 15, and enters the jet 11. It is ejected from the ejection port 16 of the body 17 into the blow-off port tube 56 of the burner 51, guided outward from the gas chamber frame 55 through the numerous through holes 53 of the combustion port body 54, and ignited and burned.

At this time, the twenty dollar shafts 1 to 19 retreat from the spout 16 of the spout body 17 by the operation of the advance jq mechanism 20 to open the spout 16, and the pipe line of the gas relief pipe joint 21 is closed by an external valve. Closed.

Then, the temperature of the burner 51 increases due to combustion. Then,
The outer plate 42 of the second vaporization chamber 43 is heated via the heat conduction plate 57, and the kerosene is vaporized in the second vaporization chamber 43.The temperature of the entire device rises and reaches a predetermined temperature. ) The electric heater 27 is turned off in response to a signal from the island temperature sensor 34, and in this state, the second vaporization chamber 43 is maintained at a predetermined temperature to continuously gasify and eject kerosene.

During the ignition combustion, the bent portion 2 of the first vaporization chamber 24
Since the vaporized gas is pressurized in step 5, it is not necessary to use an open foam or mesh heating medium, pressurizing material, etc.
<, It is difficult to cause clogging, and the volume of the vaporizing section can be increased, improving durability. Also, since stable internal pressure can be maintained, combustion is stable at the upper 11F.

In addition, during steady combustion, kerosene is ejected from the fuel Ijt feeder 45 and brought into contact with the outer plate 42 of the second vaporization chamber 43, that is, the heat receiving surface 44 for combustion heat.
The phenomenon of atomization of kerosene occurs and vaporization is promoted. J:
In addition, since kerosene is dry and vaporized on the heat receiving surface 44, the heavy components generated during vaporization are distributed 1.1 on the heat receiving surface 44.
In addition, kerosene is ejected from a part of the second vaporization chamber 43 and vaporized.
In this way, the volume of the second vaporization chamber 43 can be effectively utilized to generate heavy components, and the durability against heavy components is high.

Furthermore, if the jet is throttled and ejected from the jet port 45a of the combustion supply port body 45 and brought into contact with the heat receiving surface 44 as described above, the heavy components generated from the kerosene during vaporization will adhere to the heat receiving surface 44. ,
As shown in FIG. 11, this grows into an almost cylindrical shape around the abutting part of the kerosene heat receiving surface 44, and therefore, the kerosene path tends to shrink during combustion. By tilting the constricted part of the spout 45a downward and spouting kerosene obliquely downward, the growth of the lower portion of the heavy component that grows into a cylindrical shape is significantly delayed, and the shrinking phenomenon of the kerosene path is extremely slow. Therefore, the durability f1 against heavy components can be significantly improved.

When extinguishing a fire, the fuel supply mechanism is stopped by a fire extinguishing operation command to stop the supply of kerosene from the combustion supply port body 45, and
In the nozzle 12, the needle shaft 19 is moved toward the jet nozzle body 11 by the advancing/retracting mechanism 20 to close and clean the jet nozzle 16, and the external valve of the gas relief pipe joint 21 is operated to open the pipe. Easily release the internal gas.

〔Effect of the invention〕

According to the present invention, since only the first vaporization chamber is required during preheating using the electric heater, the preheating time can be extremely shortened, and a state in which ignition can be quickly achieved can be achieved.

In addition, since it is vaporized by the heat of the burner during combustion, there is no need for electricity required for vaporization of combustion, and since it is vaporized in the second vaporization chamber during combustion, heavy substances generated when vaporizing with 1'l of fuel are The components accumulate in the second vaporization chamber, and as a result, durability against heavy components can be increased. .

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the apparatus of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a side view of FIG. 1. Fig. 5 is a rear view of Fig. 1, Fig. 6 is a sectional view of the section from Fig. 4 - ■, Fig. 7 is a sectional view of the section from Fig. 6 - V'', and Fig. 8 is a sectional view of the section from Fig. 6 - ■. - Cross-sectional view of the ■ part, Figure 9 is the 6th
FIG. 10 is a partially cutaway side view of the device attached to the burner with the lid on, and FIG. 11 is an explanatory diagram showing the state of attachment of heavy components. 12... Nozzle, 24... First vaporization chamber, 27... Electric heater, 43... Second vaporization chamber, 44... Heat receiving surface, 1
0-45...Fuel F1 supply port body. June 4, 1980 Inventor: Katsuhisa Sato Katsuhisa Endo Patent applicant: Toshiba Heat Appliances Co., Ltd. -11-42-

Claims (2)

[Claims] (1) a first vaporization chamber that is communicated with the nozzle and vaporizes the fuel by heating the electric heater and supplies vaporized gas to the nozzle; A vaporization device comprising: a second vaporization chamber that supplies vaporized gas to a nozzle through the first vaporization chamber; and a fuel supply port provided in the second vaporization chamber. (2) The vaporization device according to claim 1, wherein the second vaporization chamber is configured to eject fuel from a fuel supply port into contact with a heat receiving portion for combustion heat.