HU207575B - Gas convector - Google Patents

Abstract

The present invention relates to a gas convector, the essence of which is a front wall face (1) surrounding the front and side of the combustion chamber (4) and the heat transfer passage (5), and a rear and side surround of the combustion chamber (7) and the air heater space (10) separated therefrom; has a front open-wall wall wall (2), and between its opposed open surfaces, with its opposite side walls, the heat recovery wire passage (5) with the flue gas supply (6) connecting the combustion chamber (7) and the air heater space (10) with the combustion chamber (4). ) has a partition wall (3) provided with a connecting air passage (13). ffl HU 207 575 Scope of description: 4 pages (including 1 sheet)

Description

BACKGROUND OF THE INVENTION The present invention relates to a gas convector which can be manufactured with a simple technology, with minimal basic components, easily, cheaply and with different heating parameters.

Most convectors currently known and commonly used are made of sheet metal. They generally consist of a combustion chamber, a heat recovery draft passage, a flue gas collection space, an air preheating space, and a flue gas outlet and air intake. These structural members are formed by extrusion and secured to each other by welding. The components are also enamelled to provide better heat dissipation. The plate convectors are characterized by the fact that the treads are flat plates and therefore have a relatively low performance. An example of such a gas convector is Oravecz's "Economical Heating of Houses, Flats, Weekend Houses" (Technical Publisher, 1982, pp. 24-25).

A similar solution is disclosed in U.S. Patent No. 3,202,172. German publication, where the sealing between the panel elements is good due to the seams. To increase the low power from flat heating surfaces, additional heat transfer draft passages are built into the convector. However, this increases the flow resistance of the flue gas, which reduces the convector's load capacity. Another disadvantage is that this solution does not provide for preheating of the combustion air.

It is known to have a convector made of cast iron combustion chamber and heat recovery draft passages. Here, the heat recovery draft passages are essentially channels bent in a 180 ° arc, the lower part of which is the combustion chamber. In this section, the individual tag elements are interconnected. The upper tapering portions of the member elements bend in a 180 ° arc and are connected to the open air through the combustion chamber. The desired performance can be increased or decreased by varying the number of member elements. Although one-piece molded parts are compact, their manufacture requires a complicated molding and casting process, which increases the cost of production. It also has the disadvantage that the cleaning and inspection of the members after casting is difficult and difficult to assemble.

No. 182296. A Hungarian patent discloses a gas convector which assembles each member from two or more cast parts perpendicular to the longitudinal axis of the combustion chamber. Although this solution facilitates the cleaning and inspection of the members after casting, the disadvantage is that the number and shape of the required castings increases the cost of molding and casting, and that many of the contacting casting surfaces require high manufacturing precision and, last but not least, a lot of finishing. In addition to this solution, the sealing of the surfaces is difficult, the assembly of the individual elements requires a lot of material and production time.

The object of the present invention is to provide a gas convector with open casting elements which can be manufactured by the simplest molding and casting, to reduce manufacturing costs, to simplify on-site assembly and material use, while allowing the use of basic casting elements to meet different power requirements.

Accordingly, the present invention relates to a gas convector having a combustion chamber interconnected with an open air space through an air preheater space receiving a gas burner, a heat recovery draft passage thereto, and an associated combustion product space with an open air passage separated from the air preheater space.

SUMMARY OF THE INVENTION The present invention comprises an open face surface face of a combustion chamber and a heat transfer draft passageway having an open face on the back and an open surface facing face of an open surface facing the combustion chamber and the separated air preheating space separated from and facing each other. a wall separating the heat recovery draft passage connecting the heat recovery draft passage to the flue gas space and an air passage connecting the air preheating space to the combustion space.

Thus, the invention is based on the discovery that, contrary to prior art, dividing convector elements made of castings into a vertical longitudinal section rather than into a cross-section of the heater, yields shell-shaped, open-end face and front open casting elements that are simple to form. can be produced by casting. However, by changing the design of the partition between them, the heating power can be selected at any time without compromising efficiency. The construction of the present invention simplifies installation and maintenance work, and allows the use of base castings to meet various performance requirements.

According to the invention, it is preferred that the gas convector has a combustion chamber. and / or a heat recovery draft passage and / or a combustion product space on the outer and / or inner boundary wall with surface-extending ribs and / or spikes.

Preferably, the gas convector partition wall of the present invention has a vertical, open-ended tubular, smooth and / or ribbed passageway. This design increases the heating surface and thus the heating capacity of the convector and allows for different running speeds using the same casting elements.

The invention will be described in more detail by way of an exemplary embodiment, wherein:

Figure 1 is a vertical cross-sectional view of the furnace body of the gas convector according to the invention, a

Figure 2 is a side view of the back and front of the gas convector shown in Figure 1, a

Figure 3 is a sectional view taken along line III-III in Figure 2.

In the exemplary embodiment shown in the drawings, the gas convector according to the invention is delimited by a (1) front wall casting (2) and a back wall casting (2) and forms an integral partition (3) therebetween. The face casting (1), which is essentially the frontal portion of the vertical longitudinal section of the gas convector (4) along the longitudinal axis of the combustion chamber, has an open shell element. The casting (1) is surrounded by sidewalls1

EN 207 575 Β the combustion chamber (4) and the heat transfer draft passage (5) forming a continuation thereof. Similarly, the shell casting (2) is also an open shell casting at the front towards the face casting (1), which encloses the flue product space (7) with its side walls and the combustion air preheating space (10) separated by a partition wall (8). The flue gas compartment (7), via the flue gas outlet (9), also passes through the nozzle (12) with a dividing wall (12) to the free air space. The air preheating space (10) is connected to the free air space by air supply to the other nozzle part (12), which is separated by a partition wall (8).

The combustion product passage (6) provided between the heat transfer draft passage (5) and the combustion product space (7) in the partition (3) arranged between the open side of the face casting (1) and the opposite open face of the back casting (2) is provided by free flow from the heat transfer draft passage (5) to the flue product space (7). In addition, in the partition (3), an air passage (13) between the air preheating space (10) and the combustion chamber (4) ensures the introduction of preheated air into the combustion chamber (4) and the gas burner (16) arranged therein.

The end-casting (1), the partition (3) and the back-end (2) are joined by coupling elements (not shown) and sealed between the connecting surfaces (15). In the exemplary embodiment, the partition (3) is made of refractory steel sheet.

The partition (3) may be made of cast iron or refractory material. Its thickness depends on the required heating power of the convector. For greater power, although not shown, the partition (3) may be formed by vertical passageways which extend to open at each end a tubular heat transfer surface. Depending on the desired performance, the inner surface of the passages may be provided with or without vertical ribs.

Also, to increase overall power, the combustion chamber (4) and, if necessary, the heat transfer draft passage (5) and / or the combustion product space (7), although not shown, are external or internal, possibly on both sides, increasing heat transfer surface, in some cases, spikes can also be formed.

The gas convector (14) forming a unit assembled with the coupling elements (not shown) stands on legs and may, of course, be enclosed, at least in part, by a cover.

During the operation of the exemplary gas convector, the gas burner (16) provided in the combustion chamber (4) with ignition and control means is ignited. The combustion product having heat energy passes through the heat transfer passageway (5) where it transmits a large part of its heat energy through the combustion product passage (6) to the combustion product space (7) and through the exhaust product outlet (9) to the free air space. Since the air pre-emptying space (10) heats the free air flowing through the air inlet (11) through the partition (3) and through the partition wall (8) of the combustion product space (7). The heated air enters the combustion chamber (10), through the air passage (13), through the partition (3), into the combustion chamber (4) and into the gas burner (16).

If tubular passageways (not shown) are provided vertically at each end of the bulkhead (3), they are heated by the heat energy flowing from the combustion chamber (4), the heat transfer draft passage (5) and the combustion product space (7) and It starts.

The gas convector according to the invention is not limited to the exemplary embodiment, but may be embodied in other forms within the scope of the invention.

Claims (3)

PATENT CLAIMS 1. A gas convector having a combustion chamber interconnected by an open space through an air preheating space receiving a gas burner, and a heat recovery draft passage therewith connected thereto, and a combustion chamber (4) having a combustion chamber (4) (5) having a front face casting (1) with an open surface facing the front and a side, and a front facing face casting (2) surrounding the combustion product space (7) and the air heating space (10) separated from it, and open to one another between the surfaces thereof by a flue gas passage (6) connecting the heat recovery draft passage (5) to the flue gas space (7) and an air passage (13) connecting the air preheating space (10) to the combustion space (4) area (3) is. Gas convector according to Claim 1, characterized in that the combustion chamber (4) and / or the heat recovery draft passage (5) and / or the combustion product space (7) are provided with surface-extending ribs and / or spikes on the outer and / or inner boundary wall. Gas convector according to claim 1 or 2, characterized in that the partition wall (3) is formed by vertical tubular, smooth and / or ribbed openings at both ends.