JPH0548027Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a hot-air heater equipped with a heat exchanger containing a gas burner or other burner.

(Conventional example) As shown in Fig. 4, a horizontally elongated heat exchanger with a constant burning burner c and a flashing burner d built into a housing b equipped with a wide hot air outlet and having approximately the same width as the warm air outlet. A convection blower f is provided, and a flashing burner d is provided.
A type of hot air heater that adjusts the temperature by blinking is generally known.

(Problem to be solved by the invention) However, since this type of heat exchanger e has a flashing burner d on one side and a constant burner c on the other side, when the flashing burner is extinguished, the temperature on the flashing burner side is Low-temperature wind blows out from the wind outlet, which is inconvenient and makes the user feel uncomfortable.

The purpose of the present invention is to provide a hot air heater that is free from such inconveniences.

(Means for Solving the Problems) The present invention includes a horizontally elongated heat exchanger with approximately the same width as the hot air outlet, and a convection blower in a case equipped with a wide hot air outlet on the front. In the case where the heat exchanger is provided with a constant flame burner and a blinking burner, and the temperature is adjusted by blinking the blinking burner, a constant flame burner is provided in the center of the width direction of the heat exchanger. and a flashing burner facing at least both sides in the width direction.

(Example) An example of implementing the present invention will be explained with reference to the attached drawings.
In the drawing, 1 is a housing with a wide hot air outlet 2 at the lower front, 3 is an oblong heat exchanger with almost the same width as the warm air outlet 2 provided in the housing 1, and 4 is the heat exchanger. A convection blower consisting of a Sirotskov fan with an air outlet 4a opened on the top surface of the heat exchanger 3; 5 and 6 indicate a constant burner and a flashing burner provided in the heat exchanger 3; the combustion capacity is switched by the flashing of the flashing burner 6; Adjust the temperature.

The configuration up to now is not particularly different from what has been commonly used in the past.

In the present invention, a permanent burner 5 is provided in the center of the heat exchanger 3 in the width direction, and flashing burners 6 are provided at least on both sides in the width direction. To be more specific, as shown in the figure, a flashing burner 6 is arranged on the rear side of the heat exchanger 3 over its entire width, and a constant burning burner 5 is arranged in the center of the front side of the heat exchanger 3. A partition plate 8 is provided inside the heat exchanger 3 to partition the heat exchanger 3 into an upper and lower part with the combustion surfaces of the burners 5 and 6 as a boundary, and a large number of secondary heat exchangers are provided in the partition plate 8 so as to surround each burner 5 and 6. Air holes 7 were provided.

Since the flashing burner 6 has a long overall length, repeated heating and cooling may deform the flame port 6a and cause incomplete combustion.

For this reason, the blinking burners 6 shown in the figure are a pair of left and right divided into two at the center.

In addition, in the drawing, 9 and 9 are flame transfer plates passed between the constant flame burner 5 and each flashing burner 6, 6, and 10 and 11 are the flame transfer plates placed on the top surface of the constant flame burner 5 from the front side of the heat exchanger 3. Flame rods and spark plugs 12 indicate an auxiliary heat exchanger facing the heat exchanger 3 with a gap in between. It is composed of first and second flat heat exchange bodies 12a, 12a rotatably connected by a communication pipe 13, and each heat exchange body 12a,
12a is connected to the heat exchanger 3 via each connecting pipe 14.
The exhaust heat from the heat exchanger 3 is also exchanged with the auxiliary heat exchanger 12, and is discharged to the outside from the exhaust pipe 15 connected to the back surface of the second heat exchanger 12a.

(Function) When all the burners 5 and 6 in the heat exchanger 3 are operated, the entire width of the heat exchanger 3 is heated, and therefore the air from the convection blower 4 is Since the hot air is uniformly heated by touching the auxiliary heat exchanger 12, the hot air blown out from the hot air outlet 2 becomes uniform over its entire width.

Furthermore, even when the flashing burner 6 is extinguished for temperature adjustment, the constant flame burner 5 burns in the center, so that the heat exchanger 3 can be heated as uniformly as possible in its width direction.

Therefore, in this case as well, the hot air becomes substantially uniform over the entire width of the hot air outlet 2.

In addition, when installing the constant flame burner 5 on the front side of the heat exchanger 3 as described above, the attached flame rod 10 and the ignition plug 11 can be attached from the front side of the heat exchanger 3, making maintenance easier. A blinking burner 6 with a large amount of heat is placed on the rear side of the heat exchanger 3 where it is easiest to take in the air volume from the convection blower 4.
This has the advantage of allowing efficient heat exchange.

(Effects) According to the present invention, a permanent burner is provided in the center of the heat exchanger in the width direction, and flashing burners are provided at least on both sides of the width, so that the temperature Even when the flashing burner is extinguished for adjustment, a uniform temperature can be obtained over almost the entire width of the hot air outlet.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view showing one example of the present invention;
3 is a cross-sectional view taken along the line --, FIG. 3 is a cross-sectional view taken along the line -- of FIG. 2, and FIG. 4 is a front cross-sectional view of the conventional example. 1... Instrument housing, 2... Warm air outlet, 3... Heat exchanger, 4... Convection blower, 5... Constant fire burner, 6
...flashing burner.

Claims (1)

[Scope of utility model registration request] A horizontally elongated heat exchanger with approximately the same width as the hot air outlet and a convection blower are installed in a case equipped with a wide temperature outlet on the front, and a constant flame burner is installed in the heat exchanger. In the case where the heat exchanger is provided with a flashing burner and the temperature is adjusted by the flashing of the flashing burner, a constant burning burner is provided in the center of the heat exchanger in the width direction, and at least on both sides of the width. A hot air heater with a flashing burner.