JP2797664B2 - Combustion equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a combustion device using petroleum as a fuel.

2. Description of the Related Art A conventional combustion apparatus of this type is configured as shown in FIG.

That is, reference numeral 1 denotes a heater which is cast into the bottomed vaporizing cylinder 2. Reference numeral 3 denotes a primary air pipe provided on a side wall of the vaporization cylinder 2, and a fuel injection pipe 4 is provided inside. Reference numeral 5 denotes a heat receiving portion provided at the upper end of the vaporization cylinder 2, reference numeral 6 denotes a flame port provided along the heat receiving portion 5, and numeral 7 denotes a flame port cap.

Here, when the heater 1 is energized and the vaporization cylinder 2 reaches a predetermined temperature, the combustion fan and the fuel supply pump (both not shown) are operated, and primary air for vaporization is blown from the primary air pipe 3 and the fuel is supplied. Fuel is supplied from the injection pipe 4. The supplied fuel is vaporized by the heated inner wall of the vaporization cylinder 2 and is mixed with primary air to become a vaporized gas. The vaporized gas rises in the vaporizing cylinder 2 and is injected from the flame port 6, and is ignited by an igniter (not shown) to start combustion. Thereafter, the heat receiving unit 5 receives the heat of the combustion flame, feeds it back to the vaporization cylinder 2 to promote vaporization, stops the power supply to the heater 1, and continues combustion.

However, in the above configuration, since the path from the vaporizing cylinder 2 to the flame opening 6 is single, there is a limit in fuel supply and combustion when the amount of combustion is largely varied. It is necessary to switch and use a plurality of combustion devices. for that reason,
It is difficult to preheat other stopped combustion devices with the operating combustion device, and the heat dissipation loss from the vaporization cylinders 2 of the plurality of combustion devices increases, resulting in an increase in power consumption. Had.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem, and an object of the present invention is to preheat a plurality of carburetors by using a combustion flame to compensate for heat dissipation loss from the carburetors, thereby reducing power consumption.

Means for Solving the Problems To solve the above problems, the combustion apparatus of the present invention is provided with a preheated flame port and a preheated vaporizer adjacent to a vaporizer for generating a main combustion flame and a flame port thereof, Further, a preheating section is provided above the preheating flame port and extends from a part of the vaporizer and receives heat released from the preheating flame port.

According to the present invention, since the preheating portion is heated by the combustion flame formed in the preheating flame portion even in the flame portion where the combustion flame is not formed, the main combustion flame is generated from the preheating portion. Heat is transferred to the evaporator. That is, the vaporizer is always in a preheated state.

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

1 to 3, reference numeral 8 denotes a plurality of bottomed cylindrical vaporizers, each of which is provided with a perforated plate-shaped flame port 9 at an upper portion thereof. At the side of the flame opening 9, there is provided a heat receiving unit 10 extending from a part of the peripheral wall of the vaporizer 8 and standing upright. Above the inside of the vaporizer 8, a plate-shaped mixing promoting plate 11 is provided. A perforated plate-shaped preheating flame port 12 is provided adjacent to each of the plurality of flame ports 9. The flame port 9 and the preheating flame port 12 are formed on the same plane. A cylindrical preheated evaporator with a bottom is located below the preheating flame port 12.
13 is provided, and a cylindrical mixing promoting body 14 is provided therein. In addition, a heat receiving wall 15 is provided at a side of the preheating flame port 12 and not adjacent to the flame port 9, and extends upright from a part of the peripheral wall of the preheat vaporizer 13. Above the preheating flame port 12, a plurality of preheating sections 16 are provided so as to protrude.
The preheating unit 16 is provided as a separate component from each of the plurality of carburetors 8, or is provided as an integral structure. A primary air inlet 17 is provided on the bottom surface of the vaporizer 8, and the lower end thereof communicates with an air passage 18 provided below the vaporizer 8 and the preheat vaporizer 13. A fuel supply pipe 19 is inserted into the primary air inlet 17, and its tip faces the carburetor 8, and the other end is connected to a fuel supply pump 20. A blower 21 is mounted in a part of the air passage 18. A primary air inlet 22 for the preheating vaporizer is also provided on the bottom surface of the preheating vaporizer 13 so as to communicate with the air passage 18, and the inside of the primary heating fuel supply pipe 23 for the preheating vaporizer faces the inside of the preheating vaporizer 13. It is inserted and provided. 24 is the preheating vaporizer fuel supply pipe
A fuel supply pump for a preheat vaporizer connected to 23. twenty five
Is a heater cast into the preheat vaporizer 13. The preheating flame port 12 is provided with an ignition device (not shown). Two
6,27 is a combustion flame.

In the above configuration, the heater 25 is energized and the preheat vaporizer 13
When the temperature reaches a predetermined temperature, the blower 21 and the fuel supply pump 24 for the preheating vaporizer are operated, the primary air is blown from the primary air inlet 22 for the preheating vaporizer, and the fuel is ejected from the fuel supply pipe 23 for the preheating vaporizer. You. The injected fuel is supplied to the preheat vaporizer 13
The fuel is sufficiently mixed with the primary air by the mixing accelerator 14 to form a uniform vaporized gas.
Squirted from. At this time, the fuel is ignited by an ignition device (not shown), and a combustion flame 27 is formed in the preheating flame port portion 12, and combustion is started. The heat of the combustion flame 27 is transferred to the preheating section 16 of the vaporizer 8.
And feeds it back to the plurality of vaporizers 8 as a whole. When the vaporizer 8 reaches a predetermined temperature, the fuel supply pump 20
Is operated, fuel is ejected from the fuel supply pipe 19 and the carburetor 8
Vaporized within. The vaporized fuel is mixed with the primary air flowing from the primary air inlet 17 to become a vaporized gas, and is ejected from the flame opening 9. At this time, the ignition is performed by the combustion flame 27 formed on the preheating flame port 12 and the combustion flame 26
Is formed and combustion is started. Since the vaporized gas is distributed by the mixing promoting plate 11, the combustion flame 26 is formed uniformly. Thereafter, the plurality of vaporizers 8 maintain a stable temperature and promote vaporization by feedback of heat from the preheating section 16 and the heat receiving section 10 receiving the heat of the combustion flame 26. Also,
In the preheat vaporizer 13, the heat of the combustion flame 27 is fed back from the heat receiving wall 15 to prevent the temperature of the preheat vaporizer 13 from decreasing and to keep the temperature of the preheat vaporizer 13 constant while turning on and off the power supply to the heater 25. To maintain combustion.
When the temperature of the vaporizer 8 rises and cannot be kept stable, the operation of the preheat vaporizer 13 is stopped to extinguish the combustion flame 27 and lower the temperature of the vaporizer 8. Further, in the combustion device, when the amount of combustion is changed to be small, one of the plurality of carburetors 8 is stopped to adjust the capacity. Here, the combustion flame 27 formed in the preheating flame port portion 12 heats the preheating portion 16 spouted from the carburetor 8, so that the temperature of the carburetor 8 is kept stable during operation of the combustion device. , A good vaporization state can be maintained, and the preheating of the vaporizer 8 is always performed during standby of the combustion device.
There is an effect that the combustion can be maintained at any time. Further, in the carburetor 8 in which the combustion is stopped, the heat loss due to the passage cooling of the primary air is compensated, and the temperature of the carburetor 8 can be kept stable, so that the combustion can be started at any time. The vaporizer 8 is a heat receiving part other than the preheating part 16.
Since the heat of the combustion flame 26 is fed back from 10, a sufficient amount of heat can be obtained to keep the temperature of the vaporizer 8 stable. Since the preheat vaporizer 13 feeds back the heat of the combustion flame 27 from the heat receiving wall 15, even when the temperature of the preheat vaporizer 13 is kept stable, the power supply to the heater 25 can be reduced, and the power consumption can be reduced. The flame opening 9 and the preheating flame opening 12 are provided so as to be adjacent to each other, and are ignited by the combustion flame 27 formed on the preheating flame opening 12, so that the plurality of flame openings 9 are reliably ignited. be able to. Further, since the preheated carburetor 13 is operated first to heat the other carburetors 8 with the combustion flame 27, the plurality of carburetors 8 can be brought into a standby state for operation in a short time.

Effects of the Invention As described above, according to the combustion device of the present invention, the following effects can be obtained.

(1) A heater is provided to the vaporizer to heat the preheater of the vaporizer with the combustion flame formed above the preheat vaporizer and to keep the temperature of the vaporizer stable during operation or standby of the combustion device. There is no need to attach, and power consumption can be reduced.

(2) Since the preheating flame port is provided adjacent to the flame port, ignition by the combustion flame can be reliably performed.

(3) Since the heat of the combustion flame is fed back to the vaporizer from the heat receiving section, and the temperature of the vaporizer is kept stable, a good vaporized state can be obtained.

(4) Since the heat of the combustion flame is fed back to the preheat vaporizer via the heat receiving wall, the power supply time of the heater for keeping the temperature of the preheat vaporizer stable can be short, and the power consumption can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of an essential part of a combustion apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of an essential part of the apparatus, FIG. 3 is a side sectional view of the apparatus, and FIG. It is a fragmentary sectional view of a device. 8 vaporizer, 9 flame outlet, 10 heat receiving part, 12 preheat flame outlet, 13 preheat vaporizer, 15 heat receiving wall, 16 preheat part.

Claims (1)

(57) [Claims] 1. A vaporizer having a bottomed cylindrical shape, a flame port provided on an upper portion of the vaporizer, and a gas port provided on a side of the flame port and standing upright from a part of the vaporizer. A heat receiving portion that receives heat of the combustion flame of the flame port, a preheating flame port provided adjacent to the flame port, a preheating vaporizer provided below the preheating flame port, and the preheating; A heat-receiving wall provided on a side of the flame port and standing upright from a part of the preheat vaporizer and receiving heat emitted by a combustion flame of the preheat flame port; and a preheating flame port from a part of the vaporizer. A preheating section extending above the section and receiving heat released by the preheating flame port section.