GB2192704A

GB2192704A - A room heating radiator body

Info

Publication number: GB2192704A
Application number: GB08715686A
Authority: GB
Inventors: Andre Runte
Original assignee: Runtal Holding Co SA
Current assignee: Runtal Holding Co SA
Priority date: 1986-07-16
Filing date: 1987-07-03
Publication date: 1988-01-20
Also published as: ATA174987A; FR2601759B1; BE1000094A7; DE8709174U1; GB8715686D0; FR2601759A1; GR871049B; IT1221977B; CH670881A5; IT8721211A0; JPS6325424A; ES2007078A6; NL8701683A

Abstract

A radiator body (1) consists of a tube (4) which connects an inflow connector (2) to a return flow connector (3), the tube (4) being coiled around a centre (5) to define a spiral, the coils of which are preferably in a common plane. <IMAGE>

Description

SPECIFICATION A room heating radiator body The present invention relates to a room heating radiator body intended to operate in a central heating system and with a heating medium flowing between an inflow connector and an outflow connector.

Present room heating radiator bodies consist commonly of a welded structure and include two manifold tubes for the inflow and return flow to which flat tubes are connected to interconnect laterally said manifold tubes. These connections are welded and the tubes must also be welded shut at their ends. In order to allow a venting of the radiator it is common to provide two connectors located above each other at each connection between flat tubes and manifold tubes. Accordingly, a considerable part of the costs of manufacturing such a radiator are taken up by the welding and the subsequent checking of all weld seams, pressure test, etc. which costs are augmented by the fact that the welding requires specialized personnel. It has been a fundamental recognition that a radiator body of such design must be ventilated and special measures must be taken regarding this task.

Object of the invention is to substantially reduce the manufacturing costs for a room heating radiator body and to this end to completely relinquish the consuming welded design. A further object is to provide a room heating radiator body which comprises at least one multiple bent tube extending in an equal sense of winding as coiled tube around a center and connecting as a continuous line the inflow connector to the outflow connector of the radiator body.

The coiled tube can assume a great many of spiral shapes in accordance with aesthetic appearances to be attained.

The room heating radiator body forming part of a central heating system is intended to be mounted in rooms of buildings, is preferably as flat as possible and occupies predominantly a rectangularly limited space such as for instance under a window-sill. The preferred embodiments fulfill above objects and also the object regarding aesthetic considerations.

Apart from its advantage regarding a very simple and low-cost production the inventive radiator body incorporates the advantage that no venting or any equipment therefore is needed, because any air which may possibly be present will be transported away by the medium flowing through the tube. In contrast to a welded radiator body no dead spaces are present. The heating medium consisting presently of hot water flows in heating systems which in these days are preferably designed as low temperature heating systems with a high velocity through the tube such that such an inventive radiator body incorporates a smaller thermal inertia and an improved heat discharge than with a iarger dimensioned tube cross-section such that an improved utilization of the expended energy is achieved.

The present invention will be more fully understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof, when read in conjunction with the attached drawings, and wherein: Fig. 1 illustrates a front view of a room heating radiator body; Fig. 2 illustrates a side view of the room heating radiator body of Fig. 1,; Figs. 3, 3a, 4 and 5 illustrate various room heating radiator bodies according# to Fig. 7 but having variously shaped circumferential forms; and Fig. 6 illustrates a further embodiment of the room heating radiator body having a twin tube line shaped spirally.

The room heating radiator body 1 according to Figs. 1 and 2 is formed of a tube 4 connecting in the manner of a continuous line the inflow connector 2 to the return connector 3, which is multiple bent around a center 5 in an equal sense of winding and accordingly forms a coiled tube. The tube includes thereby coils extending in the sense of a spiral increasing distance around the center 5 and located in the sane plane, which coils have a substantially rectangular or oval circumferential shape.

Accordingly, a room heating radiator body is provided with in a front view displaces in the whole a rectangular or oval shape. Conclusively, the room heating radiator body is extremely flat and has a depth according to the diameter of the tube 4.

The space around the center which is not taken up by the coils of the tube may be filled in appropriately by a plate 6 which is illustrated in the figures 3 to 6 and the radiator control valve, which is not illustrated in the drawings can appropriately be mounted at said plate. Such as can be clearly seen in the drawings the tube end 7 located at the outside of the spiral is in such case bent inwards and led behind the coils of the tube extending in the same common plane to this plate 6.

Based on figures 3 to 5 it can be seen that it is possible to design the room heating radiator having a substantially rectangular circumferential shape arbitrarily with any kind of outer shape whereby the room heating body can be designed at its opposite ends rectilinearly or also in shape of a semicircle. A rectangular room heating radiator body can be installed such as illustrated in the drawing or also rotated by 900 in a vertically upright standing position. The two tubes 4a and 4b of the room heating radiator body illustrated in figure 3a, according to which the tube coils of one of the spirals proceeding from the center outwards alternate with the tube coils of the other spiral. The tubes 4a and 4b are mounted at one of their ends to a common infeed connector 2 and at the other respective ends to a common return connection 3.Both tube spirals may extend in the same plane or alternatively in parallel planes. According to the same principle multispirals, i.e. more than two spirals extending in different planes are possible.

The tube spirals according to figures 1 to-5 have a center, -from which the tube as infeed function or return flow function must be ar ranged in a second plane behind the tube line firming the spiral -back again towards the outer border of the spiral. The room heating body of figure 6 does not have this drawback.

This radiator has a twin or double, resp. tube line extending continuously and forming a spi ral such that in the center 12 one tube line connects integrally to the other tube line. In #this embodiment the tube forming the entire radiator body extends inclusive- the connectors at the tube- ends 13 and 14 for the infeed and return flow in one single planegonly. Such in corporates an advantage of~manufacture be cause it is not necessary to bend the tube into the second plane and is also an optimal sdlution regarding aesthetic considerations.In addition to the illustrated embodiments a room heating radiator body of this kind may be designed with a different circumferential shape which is not rectangular, it can have for instance a trapezoidal or rhomboidal shape if such is desired due to aesthetical design con- siderations or if such radiator is to be installed in an irregularly shaped niche in a room. It is possible to produce any other shape by a cor responding bending of the- tube-deviating from the shape according to figure 1 by angles different from 90 as well as with vari ous dimensions #of the rectilinear side lengths.

The specific advantage of the inventive room heating radiator body is that its manufacturing costs are substantially lower com pared with such of the common radiators, whereby the savings# on costs for material ac count to 15~20% and on costs for wages 40 50 %. Because# it consists# of one tube only it possesses a pressure resistance up to about 150 psi and it can be ventilated easily and completely to which end advantageously a common control valve is arranges at the inflow end, a small shut-off valve at the return flow end and a larger ventilation valve shortly ahead of the shut-off valve. During the filling operation the control and the ventilation valves are opened and the shut-off valve remains closed. As soon as water flows out of the ventilating valve it will be shut and the shut off valve will be opened. Therewith, the heating radiator body is filled up and completely veintilated.

While there are shown and described present preferred embodiments of the invention, its to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims.

Claims

1. A room heating radiator body intended to operate in a central heating system and with a heating medium flowing between an inflow connector and a return flow connector thereof, comprising at least one multiple bent tube extending in an equal sense of winding as coiled tube around a center and connecting as a continuous line said inflow connector to said return flow connector.

2. The room heating radiator body of claim 1, in which said tube comprises coils extending in a spiral-like fashion with an increasing distance from said center and in at least one common plane, which coils exhibit a substantially rectangular or oval circumferential shape, whereby a substantially rectangular or oval room heating radiator is provided.

3. The room heating radiator body of claim 2, in which the end of the tube located at the outside relative to the spiral is bent inwards and extends behind the coils located in the same common plane until adjacent the inner end of the tube.

4. The room heating radiator body of claim 1, in which two tubes define a double spiral or multiple spiral, resp., which tubes are mounted respectively at one end to a common inflow connector and at the opposite end to a common return flow connector, and in which the coils of one of the spirals alternate with the coils of the other of the spirals proceeding from the center of the spiral outwards and extend in one or several parallel planes.

5. The room heating radiator body of claim 1, in which a twin tube line consisting of one tube and connected at one end in a tube loop forms a spiral in which the tube loop forms the center thereof, and in which the two adjacently located tube ends of said twin line are located at the outer edge area of the spiral having substantially rectangular circumferential shape.

6. A room heating radiator body comprising an inflow connector and a return flow connector at respective ends of a tube which is formed into a coil, in which all parts of the coil are bent in the same sense.

7. A room heating radiator body substantially as herein described with reference to any of the accompanying drawings.