JP2776625B2 - Oil burning equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a combustion device using petroleum as a fuel and having a plurality of burners.

2. Description of the Related Art As shown in FIG. 4, in a conventional apparatus of this type, a heater 2 is built in a vaporizing cylinder 1 and a vaporizing chamber 4 partitioned by a vaporizing cylinder lid 3 is formed therein, Is provided with a heat receiving wall 5. A vaporizing cylinder inlet 6 is opened in the vaporizing chamber 4 and faces an oil feed nozzle 7 connected to a pump (not shown). A burner head 8 is mounted on the upper part of the vaporizing cylinder lid 3. . In the air chamber 9, two vaporizing cylinders 1, two oil feed nozzles 7, and two burner heads 8 are arranged.
A combustion fan 10 is connected to the lower part, and a secondary air port 11 is opened around the upper heat receiving wall 5.

In the above-described configuration, when the heater 4 is energized and the vaporizing cylinder 1 is heated to a predetermined temperature, the combustion fan 10 operates and the vaporizing air is supplied from the vaporizing cylinder inlet 6 to the vaporizing chamber 4 through the air chamber 9. At the same time, fuel is supplied from the oil feed nozzle 7 and comes into contact with the heated wall surface of the vaporization chamber 4 to be vaporized. The fuel that has become vaporized gas is mixed with vaporizing air to become a premixed gas,
The gas is ejected from the burner head 8 through the opening of the vaporization cylinder lid 3 and ignited by an igniter (not shown) to burn. Complete combustion is performed from the air chamber 9 by the secondary air supplied from the secondary air port 11. During combustion, the heat receiving wall 5 receives the heat of combustion and heats the vaporization cylinder 1, so that the amount of electricity supplied to the heater 2 is reduced, and the power consumption during combustion is reduced. By supplying or stopping the fuel from one oil feed nozzle 7 according to the required combustion amount, one burner head 8
Combustion was continued or stopped.

However, in the conventional configuration as described above,
In the case where one of the two burner heads 8 is burning and the other is stopped, it is necessary to maintain the stop side carburetor 1 at a predetermined temperature in preparation for the next combustion, but it cannot receive combustion heat. Therefore, the heater 2 is energized and heated. In this case, since the vaporizing air is also supplied to the vaporizing cylinder 1 on the stop side, the amount of heat radiation from the vaporizing cylinder 1 is large and a very large amount of electricity is required to maintain a predetermined temperature. Had.

The present invention solves such a conventional problem. When only one burner is burning, the amount of electricity supplied to the stop-side vaporization cylinder is reduced, and the temperature of the combustion-side and stop-side vaporization chambers is reduced. It is an object of the present invention to provide a petroleum combustion apparatus having a uniform oil content.

Means for Solving the Problems In order to achieve the above object, the combustion device of the present invention is configured such that the inside is divided by a partition, and the fuel is supplied in accordance with a main vaporization chamber to which fuel is always supplied at the time of combustion and a required combustion amount, A vaporizer forming a sub-vaporization chamber in which a stop is performed is provided, a heat receiving unit is provided in close proximity to a vaporization surface of the main vaporization chamber, and an electric heater for heating the vaporization chamber is provided while facing the main burner head. It is configured to be ubiquitously arranged on the side.

Effect of the Invention With the above-described configuration, the present invention receives the combustion heat of the main burner head mainly by the heat receiving portion as a heat source for heating the vaporizer by the heat receiving portion, heats the main vaporization chamber and the sub-vaporization chamber, and reduces the combustion of the sub-burner head. During shutdown, the sub-vaporization chamber is heated intensively by the heat transferred from the heat receiving part and the heater ubiquitously arranged on the sub-vaporization chamber side. Can be maintained.

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

1 to 3, reference numeral 13 denotes a carburetor having a heater 14, which is energized and stopped by a temperature control device (not shown) so that the temperature of the carburetor 13 becomes substantially constant. I have to. The inside of the vaporizer 13 has a partition wall 15 and a vaporizer lid 16.
It is divided into a main vaporization chamber 17 and a sub-vaporization chamber 18. The heater 14 is ubiquitously buried on the side of the sub-evaporation chamber 18. In the lower part of the vaporizer 13, a main mixture 19 and a sub mixture 20 are provided.
Openings correspond to the main vaporization chamber 17 and the sub-vaporization chamber 18, respectively, and heat receiving fins 21 are provided on the back surface of the main vaporization chamber 17. A main air port 22 and a sub air port 23 are opened in the vaporizer lid 16 corresponding to the main vaporization chamber 17 and the sub-vaporization chamber 18, and a main refueling nozzle 24,
A sub-refueling nozzle 25 faces, and a common refueling pump 27 and a sub-refueling pump 28
Is connected. A main mixing chamber 29, a main burner head 30, a sub-mixing chamber 31, and a sub-burner head 33 are disposed downstream of the main mixture port 19 and the sub-mixture port 20, respectively.
The heat receiving fin 21 faces above 30.

In the above configuration, when the heater 14 is energized and the carburetor 13 rises to a predetermined temperature (a temperature at which fuel can be vaporized), the combustion fan 26, the main refueling pump 27, and the sub refueling pump 28 operate, and the air and the fuel are The main vaporizing chamber 17 and the sub-vaporizing chamber from the port 22, the sub-air port 23 and the main fuel nozzle 24 and the sub-fuel nozzle 25
Supplied to 18. The supplied fuel is vaporized on each vaporization surface and mixed with air to become a premixed gas, and the main mixture 19,
Through the main mixing chamber 29, the sub-mixing air port 20, and the sub-mixing chamber 31, the fuel is jetted from the flame ports of the main burner head 30 and the sub-burner head 33, ignited by an igniter (not shown), and burned. When the combustion starts, the heat receiving fins 21 are heated, the temperature of the connected carburetor 13 rises, and the power supply to the heater 14 is stopped by the temperature control device (not shown). A heat source for maintaining the vaporizer 13 at a predetermined temperature is obtained mainly by receiving the heat of combustion in the main burner head 30 by the heat receiving fins 21. Is compensated by temporarily energizing the heater 14. Since no heat receiving fins are provided on the side of the sub-evaporation chamber 18, the heat source for heating the same chamber is that heat received by the heat receiving fins 21 provided on the side of the main vaporization chamber 17 is supplied by conduction. Heat received on the back wall of the sub-evaporation chamber 18,
Heat supplied by the heater 14 corresponds to the heat. Therefore, the combustion heat received by the sub-vaporization chamber 18 side is smaller than that received by the main vaporization chamber 17 side, and the shortage of heat needs to be compensated by energizing the heater.

When the required amount of combustion is small, the auxiliary refueling pump 28 is stopped to stop the combustion in the auxiliary burner head 33, but only the air is supplied to the auxiliary vaporization chamber 18 because the combustion fan 26 is common. I have. The temperature of the sub-vaporization chamber 18 needs to be maintained at a predetermined temperature so that the next combustion can be started immediately. At this time, the heat of the combustion heat from the main burner head 30 is the same as described above, but the heat of the sub-burner head 33 is lost, so that the temperature of the sub-vaporization chamber 18 decreases, and the heat is insufficient by energizing the heater 14. It is necessary to supplement the calorific value.

Even when the combustion is performed by both the main burner head 30 and the sub-burner head 33 as described above, even when the combustion is performed only by the main burner head 30, it is possible to compensate for the insufficient amount of heat by energizing the heater 14. Is required. If a heat receiving fin is also provided on the side of the sub-vaporization chamber 18 to receive combustion heat, if both burner heads are burning, the combustion heat is received by each of the heat reception fins, and the amount of heat required in the vaporization chamber is combustion heat. However, when combustion is performed only with the main burner head 30, the heat receiving fins on the side of the sub-vaporization chamber 18 serve as heat radiating plates, and a large amount of heat is released on the same side to the heater 14 in order to maintain the vaporization chamber at a predetermined temperature. Increases the amount of current flow.

When the position of the heater 14 is arranged so as to uniformly heat the main vaporization chamber 17 and the sub-vaporization chamber 18, if the sub-vaporization chamber 18 is maintained at a predetermined temperature, the temperature of the main vaporization chamber 17 receiving a large amount of heat will be overheated. And a good vaporized state cannot be obtained, and the vaporizer may be damaged.

In the configuration of the present embodiment, since the heater 14 is ubiquitously disposed on the side of the sub-vaporization chamber 18, a larger amount of heat is supplied to the sub-vaporization chamber 18 than to the main vaporization chamber 17 by energizing the heater 14. The disadvantages as described above are greatly reduced. In addition, during combustion, the supply of excess heat to the main vaporization chamber 17 can be reduced, and even when the combustion in the sub-burner head 33 is stopped, the sub-vaporization chamber 18 also transmits heat from the heat receiving fins 21. Because the calorific value is obtained (less than the main vaporization chamber 17 side)
It is not necessary to supply a heat quantity by energizing the 100% heater 14 unlike the conventional example, and power consumption can be greatly reduced.

Note that the ubiquitous amount of the heater 14 is not constant depending on the shape and the installation position of the heat receiving fins 21, and it is necessary to determine the temperature of both vaporization chambers during combustion so that they are substantially equal. When a sheathed heater or the like is used without being ubiquitous, a similar effect can be obtained even if the arrangement density of the heater wires is made closer to the sub-vaporization chamber 18 side.

Effects of the Invention As is apparent from the above description of the embodiment, according to the oil burning apparatus of the present invention, the inside is divided by the partition wall, and the fuel is always supplied at the time of combustion and the fuel is supplied according to the required amount of combustion. Supply, a vaporizer forming a sub-vaporization chamber in which the stop is performed, a heat receiving unit is provided in proximity to the vaporization surface of the main vaporization chamber, and a heater for heating the vaporizer while facing the main burner head. By adopting a configuration ubiquitously disposed on the side of the sub-vaporization chamber, (1) the amount of heat released from the vaporization chamber during the stop of combustion can be reduced, and the power consumption for maintaining a predetermined temperature can be significantly reduced.

(2) The amount of heat from the combustion flame in the other burner head can be supplied while the combustion in one burner head is stopped, and the power consumption for maintaining the temperature of the stopped vaporization chamber is small.

(3) Overheating of the main vaporizing chamber can be prevented, and a stable vaporized state can be obtained.

 Such effects can be obtained.

[Brief description of the drawings]

FIG. 1 is a cutaway longitudinal sectional view of an essential part of an oil combustion apparatus according to one embodiment of the present invention, FIG. 2 is a transverse sectional view of the essential part, FIG.
FIG. 4 is a partial sectional view of a conventional oil combustion device. 13… vaporizer, 14… heater (electric heater), 15… partition wall, 17… main vaporization chamber, 18… sub-vaporization chamber, 21… heat receiving fin (heat receiving part), 30… main burner head .

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hideo Tomita 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (58) Fields surveyed (Int.Cl. ⁶ , DB name) F23D 11/10 F23D 11/44

Claims (2)

(57) [Claims] A vaporizer having a main vaporization chamber to which fuel is always supplied during combustion and a sub-vaporization chamber to supply and stop fuel according to a required amount of combustion; An oil combustion device comprising: a heat receiving portion provided near a vaporization surface of a main vaporization chamber, facing a main burner head, and an electric heater for heating the vaporizer is ubiquitously disposed on a side of the sub-vaporization chamber. 2. The petroleum combustion apparatus according to claim 1, wherein the heat density of the electric heater for heating the vaporizer is increased on the side of the sub-vaporization chamber.