WO1998036222A1

WO1998036222A1 - Heating device

Info

Publication number: WO1998036222A1
Application number: PCT/FI1998/000126
Authority: WO
Inventors: Seppo Partanen
Original assignee: Seppo Partanen
Priority date: 1997-02-14
Filing date: 1998-02-11
Publication date: 1998-08-20
Also published as: FI970615A; AU5990698A; FI105362B; FI970615A0

Abstract

A heating device, particularly a so-called heating radiator, in which there is equipment bringing heat and equipment releasing heat and two separate circuits (3, 4 and 5, 6) for the heating media.

Description

Heating device

The present invention relates to a heating device and, more specifically, to a so- called heating radiator.

The field has many known arrangements used as heating radiators, some of which are used in so-called domestic hot water circuits, particularly to heat rooms subject to moisture, washrooms, saunas and similar rooms. The radiators are dimensioned according to the standards used in the field.

Recently, it has been discovered that radiators used in domestic hot water circuits suffer from the drawback of having too low a water temperature in the return circuit. This is a natural result of the water cooling when it circulates through the radiator, with further cooling occurring during the return circulation. This results in especially legionella bacteria beginning to breed in the circuit, causing an obvious health hazard, besides the detriments to the piping caused by the growth itself.

Though obviously a considerable increase in the water temperature in the domestic hot water circuit would be enough to remove this drawback, it would also lead to a substantial increase in energy costs and, for example, to the possibility of users being scalded by the hot water in showers etc.

The invention is intended to solve the above problems simply and economically. This is achieved by means of a heating radiator with the characteristic features described in the accompanying claims.

In the following, the invention is described in greater detail by reference to the accompanying drawings, in which:

Figure 1 shows a side view of one embodiment of the invention and

Figure 2 shows another embodiment of the invention. According to the invention, the principle used to release heat to the surroundings is immaterial. Such principles can be, for example, the release of heat by means of flat-plate constructions around pipes, of various kinds of sheet-metal surfaces or even combinations of these.

Figure 1 shows a heating radiator 1, with a casing 2, inside of which are devices for delivering and releasing heat. Casing 2 is of a type that permits air to circulate easily and convey heat to be released. This can be ensured in any manner whatever, particularly by making openings in the case, such as holes or similar, which shall not be discussed further here.

The basic idea of the invention is that the radiator contains two possible water circuits. Thus, the first circuit comprises inlet and outlet pipes 3 and 4, and the second corresponding components 5 and 6. Usually these are the ends of a single loop of piping. Suitable convection components, such as plates 7, 8 in close contact with the pipes, are connected to the piping loop. In this figure, these are only shown schematically as blocks. The intention is to lead the domestic hot water to one circuit, e.g. 3, 4 and the ordinary radiator circuit water to another 5, 6.

Figure 2 shows a situation identical to Figure 1 , except that there is now a platelike heat exchanger 2 in place of case 2.

Thus, according to the invention, both the domestic hot water and the radiator water circuits are brought to heat a washroom or sauna, for example. Because the temperature of the radiator water depends on the outdoor temperature, but the temperature of the domestic hot water circuit generally remains steady, the radiator circuit water is used to boost the heating of the room during a cold spell, when the growth of legionella bacteria is a particular problem. Correspondingly, the amount of heat released by the domestic hot water circuit decreases, while the temperature of its return water remains at a higher level.

Though this adds very little to the construction costs and needs no special expertise or tools, it completely avoids the problems caused by too low a return water temperature. If desired, the radiator water circulation can be completely shut off in summer, when the reduced heating requirement eliminates the temperature problem. Of course, the circuit should also be shut off when no heat at all is fed to the radiator circuit.

In the figures described above, the different circuits are located one after the other. However, it is clear that the components taking heat from different water circuits can equally well be placed parallel to, or on top of each other, and that their heat releasing capacity can be adjusted as much by basic dimensioning as by varying the circulation velocity of the waters.

The foregoing shows clearly that the basic principle of the invention is entirely independent of the equipment and in no way restricts design and planning.

The invention can be adapted in many ways, while remaining within the basic concept of the invention and the scope of the accompanying Claims.

Claims

1. A heating device, in particular a so-called heating radiator, with equipment bringing heat and equipment releasing heat, characterized in that the radiator (1) contains two separate circuits (3, 4 and 5, 6) for the heating media.

2. A device according to claim 1 , characterized in that the one circuit (3, 4) is intended for a so-called domestic hot water circuit and the other circuit (5, 6) for a so-called radiator water circuit.

3. A device according to claim 1 , characterized in that both circuits can be adjusted independently.

4. A device according to claim 1 , characterized in that both circuits comprise pipe loops and plates in close contact with them.