JP2924185B2 - Oil burning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-fired oil combustion apparatus.

[0002]

2. Description of the Related Art In this type of conventional apparatus, as shown in FIG. 5, a heater 2 is built in the bottom of a vaporizing cylinder 1 and a vaporizing cylinder lid 3 is provided on the upper part of the heater 2. Tube lid 3
The vaporization chamber 4 is formed in such a manner that the vaporization cylinder 1 is partitioned by the vaporizer. The heat receiving section 5 provided at the end of the vaporizing cylinder 1 is formed in a ring shape. A vaporizing cylinder inlet 6 provided at a lower portion of the vaporizing cylinder 1 opens tangentially on the peripheral surface of the vaporizing chamber 4, and an oil feed nozzle 7 communicated with an oil pump (not shown) is provided at the opening. It is configured to face. The burner head 8 provided on the upper part of the vaporization cylinder lid 3 is composed of a flame port plate 9, a flame port net 10, and a flame port cap 11.
The vaporizing air chamber 12 contains the vaporizing cylinder 1, communicates with the combustion fan 13, and forms a secondary air port 14 at the end thereof.

The preheating operation in the above configuration will be described. When the heater 2 is energized, the vaporizing cylinder 1 and the burner head 8 are preheated. When the temperature of the peripheral surface of the vaporizing chamber 4 rises to a set temperature, the heater 2 is turned on and off at this temperature to reach the set temperature. Controlled. Next, the combustion operation will be described. The air sent from the combustion fan 13 is supplied to the vaporization cylinder inlet 6.
The vaporized air flows into the vaporization chamber 4 from the air, and is divided into two systems: vaporized air forming a swirling flow inside the vaporization chamber 4 and secondary air ejected from the secondary air port 14. Also, the kerosene collides with the inner peripheral surface of the vaporization chamber 4 and is vaporized, and the kerosene that has not been completely vaporized flows down to the bottom of the vaporization cylinder 1. And vaporization room 4
Is mixed with the vaporized air inside the vaporization chamber 4 to form a premixed gas, which is ejected from the flame port plate 9. Thereafter, the premixed gas which has been ignited by the discharge of the ignition electrode (not shown) in the gap between the heat receiving portion 5 and the burner head 8 and has started combustion is further promoted by the secondary air, and the flame is formed uniformly. You. When the combustion heat received by the heat receiving unit 5 is conducted to the vaporization cylinder 1, the vaporization chamber 4 approaches the set temperature,
At the same time, the heater 2 is turned on and off, and the temperature of the inner peripheral surface of the vaporization chamber 4 is controlled to be the set temperature.

[0004]

However, in the above configuration, kerosene colliding with the inner peripheral surface of the vaporizing chamber 4 only flows smoothly along the inner peripheral surface of the vaporizing chamber 4, so that the kerosene generated by the collision is The amount of diffusion was small. On the other hand, the vaporized air that has collided with the inner peripheral surface of the vaporization chamber 4 forms a swirling flow, immediately separates from the inner peripheral surface of the vaporization chamber 4 in a short time, and flows into the burner head 8, so that the kerosene is evaporated by the vaporized air. There was little effect that it could be pushed. As a result, the inner peripheral surface of the vaporization chamber 4 provided for vaporizing the kerosene does not function sufficiently, so that a large amount of non-vaporized kerosene stays on the bottom surface of the vaporization cylinder 1 and is vaporized again. However, there is a problem that vaporization delay occurs.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to improve kerosene diffusion and vaporization ability in order to prevent vaporization delay.

[0006]

According to the present invention, there is provided an oil-fired combustion apparatus comprising: a uniform chamber having a burner head on an upper surface; and a fuel disposed in communication with one end of the uniform chamber. A carburetor, a carburetor provided in the carburetor, to which the fuel is supplied, an oil feed nozzle for ejecting the fuel toward the carburetor, and a fuel diffuser provided to face the carburetor. A vaporizing air inlet for supplying air to be vaporized, wherein the vaporizer is disposed such that the vaporizing section is located above the burner head and the fuel vaporized in the vaporizing section flows downward and flows into the uniform chamber. With
Vaporizing portion in which the fuel and air are supplied substantially form the flat, and the vaporizing portion Rutotomoni provided spreading section substantially formed in a horizontal direction, located above the burner head
As described above, the heat receiver is provided on the outer surface of the vaporizer of the vaporizer .

[0007]

According to the present invention, the air introduced from the vaporized air inlet collides with the vaporizing portion and is dispersed by the above-mentioned structure. However, since the vaporizing portion is flat, the air is uniformly distributed in all directions along the surface of the vaporizing portion. I do. On the other hand, the kerosene injected from the oil feed nozzle collides with the vaporizing part and flows down by the diffusion part of the vaporizing part.
It is blocked and flows almost horizontally along this,
The time during which the gas is diffused and stays in the vaporizing section is increased. The vaporizing section efficiently receives the heat of combustion due to the combustion in the burner head. Therefore, kerosene is vaporized efficiently and instantaneously.

[0008]

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

In FIG. 1 to FIG. 4, reference numeral 15 denotes a box-shaped uniform chamber having a bottom, and a burner head 16 is provided on the upper surface. 1
Reference numeral 7 denotes a vaporizer having a built-in heater 18 and a burner head 16.
And is provided upstream of the uniform chamber 15. Reference numeral 19 denotes a vaporizing portion provided above the vaporizer 17 , in this embodiment an inclined vaporizing portion formed so as to protrude toward the burner head 16, and extends substantially horizontally on the inner surface thereof. Diffuser,
In this embodiment, a plurality of diffusion grooves 20 are provided. 2
Reference numeral 1 denotes a heat receiving unit provided below the inclined vaporizing unit 19 and having heat receiving fins. Reference numeral 22 denotes a vaporized air inlet provided on the vaporizer lid 23 facing the inclined vaporizer 19. Numeral 24 is an oil feed nozzle inlet provided on the vaporizer lid 23 facing the upper part of the inclined vaporizer 19, and an oil feed nozzle 25 faces the oil feed nozzle inlet 24. 26 communicates with a secondary air chamber 27 surrounding the burner head 16 and a vaporized air inlet 22.
Is a vaporized air chamber provided on the upstream side. Reference numeral 28 denotes a vaporized air chamber inlet that is open to the vaporized air chamber 26 so as to face the vaporized air inlet 22. Reference numeral 29 denotes a combustion fan which is connected to the vaporized air chamber inlet 28.

Next, the preheating operation in this configuration will be described. When the heater 18 is energized, the temperature of the vaporizer 17 rises to the set temperature, and then the heater 18 is turned on and off to maintain the set temperature. Next, the combustion operation will be described. The air supplied from the combustion fan 29 flows into the vaporized air chamber 26 from the vaporized air chamber inlet 28, and the vaporized air and the burner head 16 supplied to the vaporizer 17 from the vaporized air inlet 22 and the oil feed nozzle inlet 24. The air is divided into two systems of secondary air supplied to the system. The vaporized air is vaporized
After the collision , the vaporized air supplied from the vaporized air inlet 22 particularly collides with the lower part of the inclined vaporizer 19.
Therefore , it rises along the inclined vaporizing portion 19. On the other hand, the kerosene sprayed from the oil feed nozzle 25 tends to flow down the inclined vaporizing section 19, but enters the diffusion groove 20 on the way, and the kerosene flows downward along the diffusion groove 20 while flowing horizontally. Therefore, the kerosene contacts and diffuses over a wide area of the inclined vaporizing section 19. In addition, kerosene is used as diffusion groove 2
When entering 0, the flow is disturbed, so that the heat transfer coefficient increases and the vaporization ability improves. That is, the kerosene is expanded by the vaporized air over a wide area of the inclined vaporizing portion 19 and the diffusion groove 20 is formed.
Since it is scattered when flowing down from, it is instantaneously vaporized. Further, since the kerosene which is going to fall on the inclined vaporizing section 19 and the vaporized air which rises on the inclined vaporizing section 19 flow in opposite directions, the vaporized air effectively spreads the kerosene. Accordingly, by increasing the opening area of the vaporized air inlet 22, the flow velocity of the vaporized air is reduced and the pressure loss can be reduced. Also, the inclined vaporizer 1
Since the vaporized gas vaporized in 9 is homogenized in the uniform chamber 15 and burns together with the secondary air in the burner head 16, the combustion characteristics are good. Further, since the combustion heat is recovered by the heat receiving unit 21, the frequency of use of the heater 18 is reduced, and the electricity bill can be reduced.

[0011]

As described above, according to the petroleum combustion apparatus of the present invention, the following effects can be obtained.

According to the first aspect of the invention, the kerosene injected from the oil supply nozzle is prevented from flowing down by the diffusion portion of the vaporizing portion and flows substantially horizontally along the diffusion portion, and is diffused widely to the vaporizing portion. The staying time increases. Therefore, kerosene is efficiently vaporized in a wide range, and the vaporization ability is improved.

[0013] Further, the vaporizing section has a heat receiving surface provided on an outer surface thereof.
Combustion heat generated by combustion in the burner head section
Because of the heat received, kerosene stays in the vaporizing section for a long time and
Even if it diffuses into the air, it can be vaporized satisfactorily, and a high vaporization ability can be maintained while saving electricity costs.

[0014] By flowing the vaporized air is <br/> opposite directions to increase the kerosene and inclined vaporization section to be dropped inclined vaporizing section according to the second aspect, kerosene effectively by vaporizing the air The opening area of the vaporized air inlet can be increased by an amount corresponding to the expansion. Therefore, the flow rate of the vaporized air is reduced to reduce the pressure loss.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an oil combustion apparatus according to an embodiment of the present invention.

FIG. 2 is a side sectional view of a main part of the apparatus.

FIG. 3 is a plan sectional view of the apparatus.

FIG. 4 is a perspective view of an external appearance of the device with a part cutaway.

FIG. 5 is a cross-sectional view of a conventional oil combustion device.

[Explanation of symbols]

 Reference Signs List 17 vaporizer 19 inclined vaporizer 20 diffusion groove 22 vaporized air inlet 26 oil feed nozzle

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-230006 (JP, A) JP-A-60-13411 (JP, A) JP-A-4-158106 (JP, A) JP-A-2- 78812 (JP, A) Japanese Utility Model Showa 54-76533 (JP, U) Japanese Utility Model Showa 56-124732 (JP, U) Japanese Utility Model Showa 53-77434 (JP, U) (58) Field surveyed (Int. ⁶ , DB name) F23D 11/10 F23D 11/40 F23D 11/44

Claims (2)

(57) [Claims] 1. A uniform chamber having a burner head on an upper surface, a vaporizer for vaporizing fuel disposed in communication with one end of the uniform chamber, and a vaporizer provided in the vaporizer and supplied with the fuel. An oil feed nozzle for ejecting the fuel toward the vaporizing section, and a vaporized air inlet provided to face the vaporizing section and supplying air for diffusing the fuel, wherein the vaporizer includes the vaporizing section. Is positioned above the burner head and arranged so that the fuel vaporized in the vaporizing section flows downward and flows into the uniform chamber, and the vaporizing section to which the fuel and air are supplied is formed in a substantially planar shape. and wherein providing the diffusion section substantially in the form of horizontal in the vaporization section Rutotomo
The carburetor so as to be located above the burner head.
Petroleum combustion equipment with a heat receiving part on the outer surface of the vaporizing part . 2. The vaporizer according to claim 1, wherein the vaporizer is an inclined vaporizer, an oil feed nozzle injects fuel into an upper part of the inclined vaporizer, and a vaporized air inlet supplies the fuel to a lower part of the inclined vaporizer. Oil burning equipment.