JPH0213884Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention places a radiator in front of the forward-facing combustion surface of a surface combustion burner so that heating can be performed efficiently using both radiant heat and convection heat. , relates to a heating device in which a blower device is provided below the burner and blows hot air generated by combustion exhaust gas to the front.

[Prior art]

The above heating device was proposed in Utility Model Application No. 59-51288, and as shown in FIG. The air intake passage 8 of the blower device 7 was formed.

[Problem that the invention attempts to solve]

However, since the high-temperature radiator 4a is exposed to the outside, there is room for improvement in terms of safety, and the flow of gas sucked in by the blower 7 tends to cause combustion disturbances in the burner 2, so there is room for improvement in terms of combustion stability. There was room.

The purpose of this invention is to achieve efficient heating through both radiant heat transfer into the room by the radiator and convective heat transfer accompanying the blowing of combustion exhaust gas from the surface combustion burner into the room by the blower. While taking advantage of this, it improves safety by incorporating a high-temperature radiator, and improves combustibility by stably burning the surface combustion burner without the adverse effects of the blower.

[Means to solve the problem]

The characteristic means of the present invention is that the radiator in front of the forward-facing combustion surface of the surface combustion burner is formed into a porous shape, a heat-resistant glass for transmitting radiant heat is provided in front of the radiator, and between the radiator and the heat-resistant glass, The purpose of this invention is to form a descending intake passage for sucking the combustion exhaust gas from the surface combustion burner using the blower, and its effects are as follows.

[Effect]

In other words, the radiant heat from the radiator heated by the burner passes through the heat-resistant glass and is transferred forward, providing sufficient radiant heating.Furthermore, the combustion exhaust gas from the burner is transferred to the front through the heat-resistant glass. Convective heating can be efficiently performed by high-temperature warm air that passes through the radiator, is sent to the descending air intake path of the blower, is mixed with an appropriate amount of air as necessary, and is blown forward from the blower.

Disturbance of combustion in the burner caused by the gas flow in the descending intake passage is reliably prevented by the isolation effect of the radiator, and the temperature rise of the heat-resistant glass exposed to the outside is sufficiently suppressed by the intake air of the blower.

[Effect of idea]

As a result, while maintaining excellent heating performance through radiation and convection, it is possible to eliminate the external exposure of extremely hot objects, sufficiently improving safety, and ensuring that the burner remains stable regardless of large fluctuations in combustion load. It has become possible to combust it, and the combustibility has also been sufficiently improved.

In addition to simply adding heat-resistant glass,
By simply making improvements to the structure and arrangement of the radiator, it has become possible to provide a heating device that is superior in terms of heating performance, safety, cost, manufacturing, etc. as a whole.

〔Example〕

Next, an example will be shown with reference to FIGS. 1 and 2.

A burner 2 for surface combustion of fuel gas and air from an air supply pipe 1 is provided inside and above a closed case 3 with its combustion surface 2a facing forward, and a porous radiator 4 is placed in front of the burner 2. Suitable (about 2 to 3 cm) so that a combustion chamber 5 is formed between them.
radiators 4 provided at intervals and heated by burners 2;
The structure is such that radiant heat is transferred by far infrared rays or the like. An opening formed in the front wall of the case 3 is covered with a heat-resistant glass 6 so that heat can be radiated from the radiator 4 to the outside through the heat-resistant glass 6 located in front of the radiator 4.

An electric fan 7 such as a cross-flow type is provided below the burner 2, and the fan 7 is placed between the heat-resistant glass 6 and the radiator 4.
A descending intake passage 8 is formed by partition walls 9a, 9b, etc., and communicates with the upper end of the descending intake passage 8, and an outside air intake port 10 located behind the burner 2, and a hot air outlet 11 communicating with the exhaust side of the fan 7. Then, the combustion exhaust gas from the porous radiator 4 and the air from the outside air intake port 10 are mixed, and hot air, preferably about 80° C., is jetted forward from the hot air outlet 11, Further, the burner 2 is configured to be cooled with cold air from the outside air intake port 10.

In short, a heating device is constructed that can perform rapid heating, central heating, etc. with high thermal efficiency through the cooperation of radiant heat and convective heat.

In FIG. 2, 12 is an operating section, and 13 is an electric motor for driving the fan 7.

[Another example]

Various changes are possible in the specific structure, shape, dimensions, etc. of the surface combustion burner 2, and the radiator 4 is generally formed of holes in a honeycomb shape, a fine lattice shape, or a three-dimensional network shape. Although a ceramic sintered body having the following characteristics is used, the material, shape, dimensions, etc. can be changed as appropriate.

Heating the air with high temperature gas from the descending intake passage 8,
It may be configured as a so-called clean heating type in which the heated air is sent indoors and the combustion exhaust gas is sent outside, and the means for blowing out high temperature gas from the combustion exhaust gas is collectively referred to as a blower device 7.

[Brief explanation of drawings]

1 and 2 show an embodiment of the present invention,
FIG. 1 is a sectional view taken along the line -- in FIG. 2, and FIG. 2 is a front view. FIG. 3 is a sectional view of a conventional example. 2...Burner, 4...Radiator, 6...Glass,
7...Blower device, 8...Downward intake path.

Claims (1)

[Scope of utility model registration request] A radiator 4 is arranged in front of the forward facing combustion surface 2a of the surface combustion burner 2, and below the burner 2,
Blower device 7 that blows warm air from combustion exhaust gas forward
In the heating device, the radiator 4 is formed into a porous shape, a heat-resistant glass 6 for transmitting radiant heat is provided in front of the porous radiator 4, and the porous radiator 4 and the heat-resistant glass 6, a downward air intake passage 8 is formed between the air blower 7 and the combustion exhaust gas from the surface combustion burner 2.