JPS605304Y2 - hot air heater - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the configuration of the basic frame of a warm air heater.

As conventional hot air heaters, the ones shown in Figures 1 to 3 are known, for example, and these are actually commercially available products that include a combustor 1 that uses kerosene as fuel, combustion gas, etc. Heat exchanger 2 for exchanging heat with indoor air, combustion air blower 3
, a blower 4 for indoor air circulation is always provided, and these devices are arranged in a predetermined positional relationship and fixed with a basic frame 5, and the appearance of this basic frame 5 is finished with an outer box 6.

As shown in FIG. 3, the conventional basic frame 5 has a structure in which a floor plate 5a, a shelf plate 5b, a front plate 5c, a partition wall 5d, side walls 5e1 and a back plate 5f are each integrally fixed by spot welding or the like.

However, in this conventional basic frame 5, as many as six plates (
5a to 5f) are integrated by spot welding or the like, the assembly is very complicated and the assembly cost is inevitably high.

In view of the above points, it is an object of the present invention to improve the workability of assembling a warm air heater by devising a basic frame structure with a simple structure with fewer connection points.

In order to achieve the above objective, the present invention forms the base of the basic frame body with a single metal plate having a width dimension that is approximately the same as the front width of the heater, and the shape of this base is Itabe,
The shelf board part and the back board part are integrally formed and bent into a step shape.

According to the present invention, by adopting the above-mentioned basic configuration, the basic frame can be assembled using a base made of a single metal plate formed in a step-like manner, and therefore, it is possible to assemble the basic frame during the assembly work. The number of parts required is greatly reduced compared to conventional ones, and assembly work efficiency can be improved.

The present invention will be described below with reference to embodiments shown in the drawings.

4 to 9 show an example of a forced air supply/exhaust hot air heater using the present invention. Reference numeral 1 indicates a combustor, for example, a hot type combustor that uses kerosene as fuel.

A heat exchanger 2 heats the indoor air by exchanging heat between the combustion gas of the combustor 1 and indoor air, and is fixed to the upper part of the combustor 1.

3 is a combustion air blower that blows combustion air to the combustor 1;
4 is a blower for indoor air circulation; 5 is a basic frame for arranging and fixing each of these devices in a predetermined positional relationship; and 6 is an outer box for finishing the appearance of this basic frame 5.

Next, the basic frame 5, which constitutes the main part of the present invention, will be explained in detail.

Reference numeral 50 designates the base of the basic frame 5, which is formed by bending a metal plate (for example, a galvanized steel plate) into a step-like shape and having a width dimension that is approximately the same as the front width W of the hot-air heater. The portion 50a, the front plate portion 50b, the shelf portion 50c, and the back plate portion 50d are integrally formed.

The floor plate portion 50a is formed to have a depth dimension that allows the humidifying section 7 of the humidifying device to be attached thereto.

Further, the front plate portion 50b, the shelf plate portion 50c, and the back plate portion 50d are formed in a size such that the combustion air blower 3 can be attached to the inner space 50e thereof.

Reference numeral 50f indicates a bent portion at the end of each of the plate portions 50a to 50d for reinforcement, and the overlapping portions are connected to each other by spot welding.

Mounting pieces 50g are bent near the lower end of the back plate portion 50d, and are provided at two locations on the left and right.

Reference numeral 51 denotes a leg mounting metal fitting, which also serves as a reinforcing member for the base 50, and is fixed by spot welding or the like between the mounting piece 50g and the lower surface of the floor plate portion 50a.

The leg mounting bracket 51 is formed of a metal plate having a bent cross-sectional shape as shown in the figure, and has nuts 51a at both ends thereof, which are supported by fixed waist nuts 51a located at the four corners of the base 50. The legs 52 are screwed and fixed.

The combustion air blower 3 is housed in the inner space 50e of the base 50, and is suspended and fixed to the inner surface of the shelf section 50c.

In this case, since the lower surface of the base 50 is completely open, the blower 3 can be easily assembled from the lower surface opening by turning the base 50 upside down during assembly.

53, 54, and 55 are walls, each having a bent portion 53 at the end.
a, 54a, 55a, and the side wall 53 and the partition wall 54 are fastened to the upper surface of the shelf section 50c of the base 50 with screws 56 at the bent portions 53a, 54a at the lower ends thereof. Fixed.

Further, the rear wall body 55 is fastened to the upper part of the back plate portion 50d of the base 50 by screws 56 at its lower end.

A combustor 1 and a heat exchanger 2 are installed between the side wall 53 and the partition wall 54, and the combustor 1 is fixed to the upper surface of the shelf 50c of the base 50.

Further, a fuel tank 8 is provided between the partition wall 54 and the outer box 6.
is stored.

Note that the outer box 6 is made of a member that covers the top surface, front surface, and right side surface of the basic frame body 5.

The blower 4 for indoor air circulation is fixed near the upper end on the outer surface side of the back wall 55, and the air blown by the blower 4 flows into the back wall 55 through the air hole 55b.

On the other hand, the combustion air blower 3 has an air supply fan (not shown) and an exhaust fan (not shown).The intake port of the air supply fan is connected to the air supply pipe 9a of the supply/exhaust pipe 9 through the opening 50h of the back plate portion 50d. , and the outlet of the air supply fan is located in the shelf section 50.
Combustion air inlet pipe 1a of combustor 1 through opening 50i of c
is connected to.

The intake port of the exhaust fan is the opening 50j of the shelf section 50c.
The discharge port of the exhaust fan communicates with the exhaust pipe 9b of the supply/exhaust pipe 9 through the opening 50k of the back plate portion 50d.

The supply/exhaust pipe 9 penetrates a wall 10a of a room 10 in which a warm air heater is installed and opens to the outside.

Note that 11 is a warm air outlet provided at the lower part of the front panel of the outer box 6, and 12 is a dish-shaped stand for receiving the support legs 52.

In the above configuration, combustion air enters the combustor 1 from the outside through the route of the air supply pipe 9a of the air supply and exhaust pipe 9 - the opening 50h -> the air supply fan of the blower 3 -> the opening 50i -> the intake pipe 1a, where it is combusted. is carried out, and the combustion gas is transferred from the combustor 1 to the heat exchanger 2.
→Outlet pipe 2a-opening 50j→Exhaust fan of blower 3→
It is discharged to the outside through the opening 50 and then the exhaust pipe 9b of the supply/exhaust tube 9.

On the other hand, indoor air flows from the blower 4 through the air inlet 55b of the rear wall 55, is heated while passing around the heat exchanger 2 and the combustor 1, becomes warm air, and is heated to the lower front of the outer box 6. The air is blown out from the provided air outlet 11 toward the indoor floor surface.

At this time, since the humidifying section 7 of the humidifying device is located in the high-temperature hot air flow path, an appropriate amount of moisture is evaporated from the humidifying section 7 and added to the warm air, humidifying the indoor air. I can do it.

By the way, since the humidifying part 7 is installed on the floor plate part 50a of the base 50 and is located at the lowest part in the heater, even if water leaks in the humidifying part 7, the leaked water will not leak to other parts. It is immediately dripped into the placing table 12 without splashing.

In addition, in the structure of this embodiment, as shown in FIGS. 7 and 9, a leg mounting bracket 51 is fixed to the mounting piece 50g of the base 50 and the lower surface of the floor plate portion 50a, and a nut 51a is inserted below the bracket 51. The support leg 5 is fixed under the nut 51a.
2, even if the spot welded part of the leg mounting bracket 51 should come off, it will remain in that state and there is no risk of the hot air heater 1 falling over, making it safe. .

Note that the present invention is not limited to the above-mentioned embodiment and can be modified in various ways.
, 4, etc., it goes without saying that various forms and structures can be used.

As described above, in the present invention, the base 50 of the basic frame 5
is formed by bending a single metal plate into a step-like shape, which not only improves the workability of assembling the basic frame 5, but also
There is an advantage that the combustion air blower 8 can be easily assembled through the large lower opening of the base 50.

By the way, in the conventional model, the combustion air blower 3 is installed on the floor plate 5.
a, a shelf board 5b, a front board 5c, a partition wall 5d, and a side wall 5e. However, due to the space, the opening is
Since it cannot be made sufficiently large due to strength problems, there is a problem in that the workability of assembling the blower 3 becomes poor.

In the present invention, this problem can be satisfactorily resolved as described above.

Further, the floor plate portion 50a of the base 50 is connected to the humidifying portion 7 of the humidifying device.
Since it is configured as a mounting part, even if water leaks when the humidifying part 7 is installed, it will not affect other functional parts, control electrical parts, etc., and there is no malfunction due to water leakage. There is.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional warm air heaters.
The figure is a front view, FIG. 2 is a side view, and FIG. 3 is a perspective view of the basic frame body. Figures 4 to 9 show an embodiment of the hot air heater of the present invention. Figure 4 is a front view, Figure 5 is a side view, Figure 6 is a perspective view of the basic frame, and Figure 6 is a perspective view of the basic frame body. FIG. 7 is a perspective view of the base of the basic frame, FIG. 8 is a sectional view of the base, and FIG. 9 is a partial front view showing the support leg attachment portion of the base. 1... Combustor, 2... Heat exchanger, 3.
...Air blower for combustion 4...Blower for indoor air circulation, 5...Basic frame, 50...
...Base, 50a... Floor plate part, 50b...
...Front plate part, 50c... Shelf board part, 50d...
... Back plate part, 50e ... Inner space, 51 ...
... Leg mounting bracket, 52 ... Support leg, 53,
54, 55...Wall body, 6...Outer box, 7
...humidifying section.

Claims (1)

[Scope of utility model registration request] a combustor; a heat exchanger for exchanging heat between the combustion gas of the combustor and indoor air; a combustion air blower for blowing combustion air to the combustor; and a hot air heated by the heat exchanger section. The basic frame includes an indoor air circulation blower that blows indoor air, a basic frame for arranging and fixing each of these devices in a predetermined positional relationship, and an outer box for finishing the appearance of this basic frame, and The base of the body is formed from a single metal plate with a width dimension that is approximately the same as the front width of the heater, and the shape of this base is such that the floor plate, front plate, shelf plate, and back plate are integrated. A wall is joined to the upper surface side of the base, the floor plate part of the base is formed to a size that allows the humidifying part of the humidifier to be attached, and the front plate part of the base is formed into a stepped shape. , a shelf board section, and a back board section, each of which is formed to a size that allows the combustion air blower to be attached to the inner space thereof.