JPS621654Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a hot air heater, in particular a hot air heater in which a combustion chamber in which a combustor and a blower for indoor air circulation are vertically arranged, and a fuel tank are arranged side by side in a main body casing. Regarding.

In this type of hot-air heater, the separation distance between the combustor and the cartridge tank serving as the fuel tank that supplies fuel to the combustor prevents the flame in the combustor and its hot air from exerting a thermal influence on the cartridge tank. In other words, from a safety standpoint, it is strictly regulated by JIS standards. In order to satisfy this JIS standard, the first possible method is to separate the combustion chamber itself from the cartridge tank by the necessary distance.
This method results in an increase in the outer dimensions of the heater main body casing in the lateral direction, and is therefore problematic in terms of the space saving required for the indoor heater.
In order to solve these problems, it is possible to narrow the width of the combustion chamber and separate it from the cartridge tank within the main body casing of a predetermined width. Although the problem of space does not arise, the problem of a reduction in the amount of hot air supplied does arise.

The present invention has been developed in view of these problems, and involves deviating the combustor, the cylindrical body surrounding it, and the blower to the side opposite to the fuel tank with respect to the longitudinal centerline of the combustion chamber. Accordingly, the present invention provides a hot air heater that satisfies all of safety, hot air supply amount, and external dimensions.

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is the bottom plate that forms the base of the heater, and 2 is the bottom plate that forms the base of the heater.
The main body casing 3 is a combustion chamber partitioned toward one side of the main body casing 2, and an air intake port 4 and a hot air discharge port 5 are provided at the rear and front surfaces of the upper part, respectively. Reference numeral 7 denotes a mounting frame for a blower, which will be described later, which is fixed to the rear surface of the main body casing 2, and has an opening 8 connected to the air intake port 4. A combustor 9 and a blower 10 for indoor air circulation are vertically arranged in the combustion chamber 3. To be more specific, the combustor 9 is fixed to the upper surface of the bottom plate 1, and a flame is mounted on the upper part. A blower 10 is provided.
is attached to the mounting frame 7 at the rear of the upper part of the combustor 9. Furthermore, the combustor 9 and the blower 10 have their longitudinal center lines aligned with the dashed-dotted line in FIG.
As shown in C ₁ , match each other and
The longitudinal center line of the combustion chamber 3, that is, the two-dot chain line in FIG.
It is arranged so as to be offset to the side opposite to the cartridge tank described later with respect to _C2 .

The blower 10 is equipped with a propeller fan 10A, and since the amount of air blown by the propeller fan 10A tends to increase toward the right side of the figure, the amount of air blown to the wide space of the combustion chamber 3 on the side of the cartridge tank 19 increases. It's becoming like that.

Reference numeral 13 denotes a heat shielding tube that laterally blocks the heat of the flame 14 generated in the flame forming part 11 of the combustor 9 during ignition and guides it upward; 15 denotes a mixing area of combustion gas and air in the combustion chamber 3; , 17 is an oil pan fixed to the bottom plate 1 via a mounting frame 18, 19 is a cartridge tank as a liquid fuel tank placed on the oil pan 17, and 20 connects the oil pan 17 and the combustor 9. The oil supply pipe 21 is a partition plate separating the combustion chamber 3 from the oil pan 17 and the tank 19, and 22 is a louver provided in front of the hot air outlet 5.

In the heater configured as described above, since the combustor 9 and the blower 10 are located on the same center line _C1 , warm air with less temperature unevenness can be obtained, and the center line
Since C ₁ is offset from the center line C ₂ of the combustion chamber 3 to the side opposite to the tank 19, the high temperature portion from the combustor 9 that reaches the flame 14 or the mixing zone 15 is moved away from the tank 19 and Therefore, the thermal influence on these is reduced. In other words, assuming that the center line _C1 is a line indicating the minimum separation distance from the tank 19 according to the JIS standard, if you are trying to obtain the same amount of hot air with the structure of the conventional product, the combustion It is necessary to move the longitudinal center line C ₂ of the chamber to the center line C ₁ to match it. Therefore, the combustion chamber 3 is separated from the tank 19 by the amount of movement, and as a result, the external dimensions of the main body casing 2 become larger, but in the present invention, as already stated,
The common center line _C1 of the combustor 9 and the blower 10 is connected to the center line _C2 of the combustion chamber 3 in the cartridge tank 1.
Since it is shifted to the side opposite to 9, when trying to obtain the same amount of hot air as the conventional product, it is possible to easily satisfy the JIS standard with smaller external dimensions than the conventional product.

Further, as mentioned above, since the amount of air blown by the blower 10 increases in the direction of the cartridge tank 19, in combination with the heat shielding effect of the heat shield tube 13, the temperature of the cartridge tank 19 is further reduced.
There is an advantage that the thermal influence on the cartridge tank 19 can be reduced.

As mentioned above, the hot air heater according to the present invention is
The combustor, the cylindrical body that surrounds it, and the blower for indoor air circulation are arranged offset to the side opposite to the fuel tank with respect to the longitudinal center line of the combustion chamber, which is different from the conventional product. The same amount of heat transfer can be obtained and
While satisfying the safety standards according to the JIS standard, the overall external dimensions can be reduced, which has the advantage of requiring less space when installed as an indoor heater.

In addition, since the amount of air blown by the blower is increased toward the fuel tank side, the effect of lowering the temperature of the combustion chamber on the fuel tank side, combined with the installation of a cylinder with a heat shielding function, reduces the temperature of the fuel tank. This has the advantage of further reducing the heat effect on the fuel tank.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of a hot air heater according to the present invention, and FIG. 2 is a side sectional view thereof. 3... Combustion chamber, 9... Combustor, 10... Blower, 19... Cartridge tank.

Claims (1)

[Claims for Utility Model Registration] (1) A hot-air heating system in which a combustion chamber in which a combustor and an indoor air circulation blower are vertically arranged, and a fuel tank are arranged horizontally in a main body casing. In the engine, the combustor and the blower are arranged offset to the side opposite to the fuel tank with respect to the longitudinal centerline of the combustion chamber, the combustor is surrounded, and the combustor is similar to the combustor. A hot air heater characterized by having a cylindrical body arranged in an offset manner. (2) Claim 1 for utility model registration where the fuel tank is a cartridge tank placed on an oil pan
Hot air heater as described in section.