JP2680622B2 - Burning appliances - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combustion appliance such as an oil heater having a cartridge tank for supplying petroleum fuel to a burner device and an oil pan.

(B) Conventional technology In this type of burner, on the bottom plate of the body case,
The burner device and the oil pan that receives the fuel from the cartridge tank are fixed, and the petroleum fuel in the oil pan is supplied to the burner device through the oil supply pump and oil supply pipe. It is known from the official gazette.

(C) Problems to be Solved by the Invention In the conventional structure described above, the burner device and the oil pan are fixed to the bottom of the body case in a state of being separated from each other. Is difficult to do and requires a large installation space,
It was inconvenient to carry. Therefore, in recent years, in order to reduce the size of the appliance, there has been proposed a combustion appliance in which an oil pan and a burner device are brought close to each other or the oil pan has a small capacity. However, if the oil pan has a small capacity, the fuel in the oil pan will be emptied for a short time after the operation of the alarm mechanism that informs of the fuel exhaustion of the cartridge tank, and the refueling pump sucks air and the burner device malfunctions. There were problems such as burning, and extinguishing the fire carelessly to generate a foul odor.

The present invention has been made in view of the above facts,
It is an object of the present invention to make it possible to increase the capacity of the oil pan and to shorten the length of the fuel supply pipe as much as possible while keeping the equipment compact.

(D) Means for Solving the Problems The present invention includes a main body case, a burner device fixed on a bottom plate of the main body case, a cartridge tank, and an oil tray for storing fuel supplied from the cartridge tank, In a combustion instrument equipped with an oil supply pump and a fuel supply pipe for supplying the fuel in the pan to the burner device, a recess is provided in the front end of the oil pan at a substantially central portion, and a part of the burner device is inserted into the recess. In this state, the oil pan is fixed on the bottom plate of the main body case, and the oil supply pump is attached to the front part of the oil pan adjacent to the burner device.

(E) Action A recess (43B) is provided in the front end of the oil pan (43) at approximately the center, and the oil pan (43) is inserted with the burner device (8) partially inserted into the recess (43B). The main body case (1) is fixed on the bottom plate (2) of the main body case (1).
Not only can the area of the bottom plate (2) of the tank be made as small as possible and the equipment can be made compact, but the capacity of the oil pan (43) can be increased, and the cartridge tank (4
4) You can extend the burning time after emptying the fuel.

Moreover, since the oil supply pump (P) is attached to the one side front part (43A) of the oil pan (43) adjacent to the burner device (8), the total length of the fuel supply pipe (24) is significantly larger than before. It is possible to shorten the length, and even if the fuel pump (P) is idle, it is possible to suppress the abnormal rise of the flame.

(F) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

In the figure, (1) is a body case of a combustion appliance such as a radiant oil heater, and a front panel having a bottom plate (2) as a stand, a peripheral side plate (3), a top plate (4), and an opening (5). (6) and the tank cover (7).
(8) is a burner device mounted and fixed on the bottom plate (2), and the burner device (8) is arranged in the lower part of the main body case (1).

Next, the burner device (8) will be described in detail.
(9) is a cylindrical motor case having an air supply port (10) in an appropriate place on the side wall, (11) is an air supply case communicating with the motor case (9) through a ventilation port (12), and (13) is The burner case is connected to the air supply case (11) via a heat insulating material (14), and has a plurality of air passages (15) for introducing secondary air into the burner case (13) along the side wall of the burner case (15). ) Is opened, and the motor case (9), the air supply case (11) and the burner case (13) are frozen in that order. (16) is a motor installed in the motor case (9), and its motor shaft (17) penetrates the air supply case (11) and has its tip protruding into the burner case (13). An air supply case (11) is provided in the middle of the motor shaft (17).
An air supply fan (18) consisting of a turbo fan is installed inside. (19) is a bottomed cylindrical burner body that is installed approximately in the center of the burner case (13). A vaporization heater (20) is embedded in the peripheral wall of the burner body (19). It is connected to the air supply case (11) through 14). Further, a primary air inlet (21) is provided in the burner body (19) at substantially the center of the bottom thereof, and a vaporization premixing chamber (22) is formed therein. At the tip of the motor shaft (17), a stirring plate (23) also functioning as a fuel scatter plate in the vaporization premixing chamber (22) is attached, and the stirring plate (23) has the primary air inlet (21). Fuel is supplied from a fuel supply pipe (24) facing the vaporization premixing chamber (22). (25) is a fixture provided in the vaporization premixing chamber (22) near the primary air inlet (21), which supports the outlet portion of the fuel supply pipe (24) and connects the fuel supply pipe (24). The fuel is prevented from leaking to the outside of the vaporization premix chamber (22). (26) is an annular diaphragm plate having a diaphragm opening (27) at substantially the center, (28) is a straightening plate which is located outside the diaphragm opening (27) and has a plurality of through holes (29) formed in an annular shape,
Reference numeral (30) is a bottomed cylindrical support tube fixed to the central portion of the upper surface of the rectifying plate (28). These are a diaphragm plate (26) and a rectifying plate (2
8) The support cylinder (30) is installed in the burner body (19) in this order. (31) is a burner head mounted near the tip opening of the burner body (19), and is formed into a generally horseshoe shape in plan view by a large number of small circular holes (32) drilled leaving a part of its central portion and outer peripheral portion. It has a flame mouth portion (33) formed. (F) is a blue flame formed on the flame opening (33). At the lower peripheral portion of the air supply case (11), a fourth
As shown in the figure, there is an air discharge port (34) for inserting the fuel supply pipe (24) in the middle and discharging a part of the air in the air supply case (11) to the lower space in the main body case (1). The air discharge port (34) is provided in the shape of a cylinder having a length of 3 mm or more, and the generated air flow is made laminar to prevent noise. Further, as shown in FIG. 5, the stirring plate (23) has upward stirring blades (23
A) and four downward stirring blades (23B) are formed by cutting and raising four pieces each. In addition, the fixing bracket (2
5) has a downward hanging edge portion (25C) around the entire circumference of an oil pan (25B) having an upward burring hole (25A) in the central portion as shown in FIG. ), Three fixing legs (25D) and a plurality of thin legs (25E) between the fixing legs (25D). In FIG. 2, (35) is an air supply duct, one end of which is connected to the air supply port (10) of the motor case (9), and the other end of which is a main body case via an air supply filter (not shown). It communicates with the outside of (1). (36) is a spark plug, (37) is a flame detector, and these spark plug (36) and flame detector (37) are penetratingly supported by the burner case (13).

Reference numeral (38) denotes a combustion cylinder provided in the main body case (1) corresponding to the opening (5) of the front panel (6), which is formed of heat-resistant transparent glass into a hollow cylindrical shape. The flame (F) of the burner device (8) rises in the lower part of (). Reference numeral (39) is a partition plate also serving as a horizontal reflection plate, which is provided so as to partition the inside of the main body case (1) into upper and lower parts. This partition plate (39) has its rear edge at the rear plate portion (3A) of the peripheral side plate (3). It is fixed to. A lower support portion (40) that fits and supports the lower end of the combustion tube (38) is provided substantially in the center of the partition plate (39), and the lower surface of the partition plate (39) and the burner. Approximately 5-10 mm gap (a) between the case (13)
Is formed. (41) is a reflecting plate provided in the rear part of the combustion tube (38) and having an arcuate shape in a plan view. The lower end of the reflecting plate is fixed to the partition plate (39) by spot welding or the like to be integrated with the partition plate (39). A space (b) whose lower end communicates with a space below the partition plate (39) is formed between the reflection plate (41) and the peripheral side plate (3). Reference numeral (42) is a red heating element suspended in the combustion tube (38).
Is energized by the flame (F) of the burner device (8) and becomes red. Then, the combustion exhaust gas in the combustion cylinder (38) is discharged to the front of the main body case (1) through the information exhaust passage of the combustion cylinder (38).

(43) is arranged close to the burner device (8) at the rear of the burner device (8) and the bottom plate (2)
An oil pan placed and fixed on the oil pan (43) normally stores a substantially fixed amount of petroleum fuel from the cartridge tank (44), and an oil pump (P) such as an electromagnetic pump and the fuel supply pipe ( The fuel is supplied to the burner device (8) via 24). And this oil pan (43) is the first
As shown in FIG. 2 and FIG. 2, the rear part is projected rearward from the rear plate part (3A) of the peripheral side plate (3), and the front parts (43A) (43A) of the rear plate part (3A) are connected to the burner device (8). It projects to the left and right sides. That is, an arc-shaped recess (43B) is provided in the substantially central portion of the front end of the oil pan (43), and a part of the motor case (9) of the burner device (8) is inserted into this recess (43B). I have to. The cartridge tank (44) is for replenishing the oil pan (43) with petroleum fuel by inserting the oil supply port (45) into the oil pan (43) of the oil pan (43). ) When the fuel in the oil pan (43) is empty and the steady oil level (X) of the oil pan (43) is about to drop, a float switch (not shown) provided in the oil pan (43) detects this and the cartridge A notifying mechanism (not shown) for notifying the fuel exhaustion of the tank (44) is operated. Further, the suction port of the oil supply pump (P) is normally opened close to the lowest position in the oil pan (43).

In the above embodiment, the upper portion of the cartridge tank (44) is exposed to the outside of the body case (1). However, as shown in another embodiment of FIG. A cartridge tank accommodation space (48) partitioned by the partition wall (47) may be formed, and the cartridge tank (44) may be accommodated in the accommodation space (48) so that it can be freely taken in and out.

In the above structure, when the vaporization heater (20) is energized, the burner body (19) is heated and the burner body (1
When the temperature of 9) reaches the temperature at which oil can be vaporized, a burner temperature detector (not shown) detects the temperature, and the motor (16)
Starts driving and the air supply fan (18) and the stirring plate (23) rotate. After the drive of the motor (16) is started, the oil supply pump (P) is operated, and the fuel supply pipe (24) is connected to the oil pan (43).
The petroleum fuel inside is supplied to the lower surface of the rotating stirring plate (23). Then, the fuel supplied to the stirring plate (23) is scattered into fine particles by centrifugal force, and the scattered fuel contacts the inner surface of the peripheral wall of the heated burner body (19) to be instantly vaporized and vaporized. It becomes gaseous fuel in the premix chamber (22).

On the other hand, combustion primary air from the air supply fan (18) is supplied to the vaporization premixing chamber (22) from the primary air inlet (21), and the aforementioned gaseous fuel is vaporized premixed by the stirring plate (23). It is premixed with the primary air in the chamber (22), and the premixed air passes through the throttle port (27) and the through hole (29) and the small circular hole (32) of the burner port (33) of the burner head (31). Then, it is jetted out and ignited by the ignition plug (36), and a flame (F) is formed above the flame opening (33) to burn a blue flame.

A part of the air blow of the air supply fan (18) is discharged to the lower space in the main body case (1) from the air discharge port (34) provided in the air supply case (11) as shown in FIG. , This air enters the burner case (13) through the air vent (15) by the suction force due to the draft action of the flame (F) and enters the outside and inside of the flame (F) as secondary air by natural ventilation. It is supplied so as to promote the secondary combustion without shortening the length of the flame (F). Therefore, at the time of strong combustion of the burner device (8), the red heat body (42) is wrapped in the long flame (F) extending to the upper part of the red heat body (42) and is radiated well, and the heat ray is radiated into the room. It then acts as a radiant heating.

According to the present embodiment, an arcuate recess (43B) is provided in the front center of the oil receiving tray (43) to which fuel is replenished from the cartridge tank (44), and the burner device (43B) is provided in this recess (43B). Since the oil receiving tray (43) is placed and fixed on the bottom plate (2) of the main body case (1) while a part of the main body case (1) is inserted, the area of the bottom plate (2) of the main body case (1) is Can be made as small as possible and the equipment can be made compact, and since the front parts (43A) (43A) of the oil pan (43) project to the left and right side parts of the burner device (8), the oil The capacity of the pan (43) can be increased so that the fuel in the oil pan (43) does not become empty in a short time after the fuel in the cartridge tank (44) becomes empty. The combustion can be continued for a long time even after the fuel in the cartridge tank (44) is exhausted.

Further, since the oil supply pump (P) is attached to the front part (43A) on one side of the oil pan (43) adjacent to the burner device (8), the total length of the combustion supply pipe (24) is significantly larger than that of the conventional one. Since it can be shortened, the total amount of air sent into the fuel in the fuel supply pipe (24) can be reduced even if the fuel pump (P) is idle, and as a result, abnormal rise of flame is suppressed. be able to.

(G) Effect of the Invention As is apparent from the above description, the present invention includes a main body case, a burner device fixed on the bottom plate of the main body case,
In a combustion instrument equipped with a cartridge tank, an oil pan for storing fuel replenished from the cartridge tank, an oil supply pump for supplying the fuel in the pan to the burner device, and a fuel supply pipe, a front end portion of the oil pan is provided. A recess is provided substantially in the center, and the oil pan is fixed on the bottom plate of the main body case with a part of the burner device inserted in the recess, and the oil pump is provided on an oil pan adjacent to the burner device. Since it is attached to the front part of one side, the following effects are achieved.

The area of the bottom plate of the body case can be made as small as possible, the equipment can be made compact, and it does not require a large installation space.In addition, the capacity of the oil pan for refueling from the cartridge tank is sufficiently large. Therefore, the combustion time is extended after the fuel in the cartridge tank is emptied, which is excellent in usability.

Since the refueling pump is attached to the front part of the one side of the oil pan that is close to the burner device, the total length of the fuel supply pipe can be made much shorter than before, and the refueling pump will be idle. Also, the abnormal rise of the flame can be suppressed, and the safety is improved.

[Brief description of the drawings]

1 to 6 show an embodiment of the combustion instrument of the present invention, FIG. 1 is a partially cutaway side view of the combustion instrument of the present invention, and FIG. 2 shows a burner device and an oil pan. FIG. 3 is a plan view of a main portion showing the positional relationship, FIG. 3 is a longitudinal sectional view of the burner device, and FIG.
FIG. 5 is an enlarged sectional view of an essential part of FIG. 3, FIG. 5 is an enlarged sectional view of an essential part of FIG. 3, FIG. 6 is a perspective view of a fixing bracket, and FIG. 7 is another embodiment of the combustion instrument of the present invention. It is a partially notched side view shown. (1) …… Main body case, (2) …… Bottom plate, (8) …… Burner device, (24) …… Fuel supply pipe, (43) …… Oil pan, (43A) …… Front part of oil pan , (43B) ... recessed part,
(44) …… Cartridge tank, (P) …… Refueling pump.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masanobu Numao, 2-18, Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (56) References: 56-81343 (JP, U) 59-191048 (JP, U) Actual public 6-10485 (JP, Y1) Actual public 48-22018 (JP, Y1)

Claims (1)

(57) [Claims] 1. A main body case, a burner device fixed on a bottom plate of the main body case, a cartridge tank, an oil pan for storing fuel supplied from the cartridge tank, and a fuel in the pan for the burner device. In a combustion instrument including an oil supply pump and a fuel supply pipe for supplying, a recess is provided at a substantially central portion of a front end of the oil receiver, and the oil receiver is a main body in a state where a part of the burner device is inserted into the recess. A combustor which is fixed on a bottom plate of a case, and is further provided with the refueling pump attached to a front part of one side of an oil receiving plate which is adjacent to a burner device.