FR2498303A1 - GUIDE FOR THE FIXING OF HEATING PIPES OF A RADIATION HEATING FACILITY - Google Patents

Abstract

THE INVENTION RELATES TO A GUIDE MADE OF A FLAT METAL MATERIAL FOR THE FIXING OF RADIATION HEATING PIPES. THIS GUIDE PRESENTS SLOTS 16 EACH OTHER OF EQUAL DISTANCES IN LONGITUDINAL DIRECTION, EXTENDING TRANSVERSALLY, SHAPED BY BENDING THE GUIDE 12 AND INTENDED TO RECEIVE THE HEATING PIPES 22. THIS GUIDE MAY BE SUITABLE FOR THE FIXING OF PIPES OF HEATING IN FLOORS, WALLS AND CEILINGS, AS WELL AS IN EXTERNAL SURFACES SUCH AS THE EDGES OF SWIMMING POOLS AND TAKEOFF AND LANDING TRACKS.

Description

The present invention relates to a guide made

  of a flat metallic material for the fixation of

  heating of a heating system

  radiation. To simplify the description, this guide

  will be described below, by way of example, for fixing the heating pipes of a heating installation in the ground. The guide is intended primarily for this application for which all its benefits are obtained. However, it is also necessary

  for fixing heating pipes in

  heating installations in the walls and in the

  background. Similarly, it can be used in surfaces

  external factors, such as in

  swimming grounds, in take-off and landing

  15. Landing etc. Finally, cooling agents

  and environments that capture heat from the environment can also be transported

fixed by the guide.

  Guides for fixing heating pipes are known. They are placed on the floor at the floor of the room to be heated. The pipe or pipes

  heating, which are made of a flexible plastic material

  xible, are set up in the guides according to a

  my predetermined and are maintained by these guides in their prescribed position. The two ends of the heating pipe or pipes are respectively connected to the supply and return of a central heating installation. Screed concrete or a mortar is poured on the floor to cover the guides and heating pipes. Guides of this type for fixing the heating pipes are known. Most often, they are made of an extruded or expanded plastic material. The plastic material has only a low thermal conductivity. The heat dissipation of the heating pipes in the floor is thus braked. The plastic also has a coefficient of thermal expansion different from

  those of the screed and / or concrete. This difference

  stress in the floor and cracks may form. To counteract these effects, the effective height of the screed is increased. This measurement then influences the transmission of heat from the heating pipes in the room to be heated. In order to obtain equal expansion coefficients and to avoid thermal cracking, the plastic guides were reinforced by means of steel wires. This

  makes manufacturing more expensive and other incon-

  as the poor thermal conductivity remains. Another disadvantage of all plastic guides still lies in the fact that, for

  reasons of solidity, they must have a high

  determined minimum below the heating pipes

  wise. This increases the volume of the screed concrete or casting mortar. Increased masses

  be unnecessarily heated. Guides on the subject

  flat metallics are also known. These guides pre-

  have sharp edges that may cut into the

  sensitive plastic material of heating pipes.

  In general, these guides are also not sufficiently

  stable in length or rigid in torsion. All

  the known guides also have the disadvantage of de-

  easily place on the floor. In this case, it must be taken into consideration that, when installing a heating system in the ground, they are placed first on the floor. The

  heating pipes are then placed in their

  prescribed position and are, in that position, fixed to the guides. When laying the heating pipes in their prescribed position, these pipes are in particular bent. These operations introduce tensions

  such that the guides move after the

  Heating has been fixed there.

  However, the purpose of the invention is to achieve

  a guide for fixing the heating pipes of a radiant heat

  in such a way that by means of the technical means

  the optimum strength of the guides can be

  and floor, a thermal conductivity ma-

  maximum, a minimum risk of notching of the heating pipes and also a minimum effective height of the concrete of the screed or mortar and simultaneously manufacturing costs which are lower than those of known guides. This goal is achieved in accordance with

  invention for a guide made of a flat material

  because it presents slots of

  designed to receive heating pipes, spaced the

  each other of equal distances in the long

  tudinal, extending transversely and formed by

  age of the guide. The use of a flat metal material

  lique allows to obtain a high thermal conductivity and the same coefficient of thermal expansion,

  than that of screed concrete or mortar. At the different

  of known guides made of flat material

  metal, the guide according to the invention is, however,

  shaped or folded in such a way as to

  slots for the direct introduction of tu-

  heating. Thanks to these successive niches,

  the guide is stable in length and rigid in torsion.

  It can thus be of a slim realization. Its thick

  It is of the order of magnitude of 1 mm or a little more only. The heating pipes held in the crenellations are thus practically placed directly on

  floor. This decreases the effective height of the baby.

  tone of screed or mortar. As a result, the conductibility

  Thermal density increases. At the same time, energy is saved because the volume of screed that must be

heated is less important. -

  In an advantageous embodiment, the

  have a square section, seen in a longitudinal direction

  tudinal, and the transitions between the bottom and the two sides of the crenellations are rounded. The heating pipes are thus in direct contact with the guide

  metal on most of their periphery.

  This not only ensures proper maintenance of the hose

  heating, but also a good thermal transition.

  In another embodiment, projections in

  in the upper zone

  re sides of the slots and extend inside

  of these. These projections are advantageously repouss-

  in the material of the guide. They are arranged

  and lengthened in such a way that they are

  tact from the top with the heating pipes

  in the slots. These heating pipes are thus safely retained in the crenellations. When laying, the heating pipes are prevented from leaving the slots under the effect of the voltages then produced.

  It should be added that the heating pipes

  are made of a sensitive plastic material and that they must be protected against cutting by sharp edges. For this purpose, according to the invention, the longitudinal edges of the guide are bent to form a rounded outward or downward. There are rounds not only in the niche area,

  but also at the level of the horizontal parts which

  bind these niches. The roundings then fill the

  function. to increase the long-term stability

  tudinal and the torsional rigidity of the guides.

  In another embodiment, the edges of the

  rounded are chamfered to form sharp edges. These sharp edges sink into the floor

  especially in the case. o guides are led to

  clink a little when introducing the heating pipes. This gives for the first time a guide that is supported without being able to slide at all

on the floor.

  To further increase the longitudinal stability

  tudinal and torsional stiffness, the present guide

  in addition two moldings that extend in the long

  gitudinal equidistant from its longitudinal edges and which are pushed towards its lower face. These moldings may be pushed back only to a degree or height such that, for a guide placed on the floor, they do not come into contact with the latter and that the guide rests only on the edges

  vividly mentioned above. Resistance to sliding

  the desired form remains intact.

  The guide according to the invention is made of a steel strip, preferably a galvanized steel strip. This strip has a thickness of about 1 mm or a little more than 1 mm. The guides can be simply cut to length on site. Instead of

  to be made of steel strip or strip of

  galvanized, the guide may also be made of brass,

aluminum or another metal.

  The distance between two successive crenellations ranges from 30 to 70 mm and is preferably 50 mm. This provides sufficient possibilities for laying the heating pipes according to any desired scheme. In general, the

  distance between two heating pipes is never in-

  less than 50 mm. That's why this distance

  titrate the preferred measure. Longitudinal stability and torsional rigidity of the guides are also increased by the tight succession of slots. The sides that limit the crenellations, the bottom that connects the right-angled sides and the horizontal parts that connect the sides of neighboring battlements give a resistant moment

  considerable. The width of a square or a cor-

  corresponds to the outside diameter of a heating pipe,

for example 21 mm.

  * To facilitate the insertion of the heating pipes in the corresponding slot, the guides have characteristic marks on their upper face, equidistant from each other, by

  example all four slots. These marks are

  may also be numbered. By simply counting the characteristic marks or reading their number, the fitter can immediately determine the slot in which a heating pipe is to be inserted. In an adventurous embodiment, at least one hole is provided in the bottom of the slots. he

  is stamped into the strip at a time

  purpose of the manufacture of the guide. The hole provided in the bottom of each slot of the completed guide serves two functions. During the passage of the guide in the manufacturing machine or folder, advancement fingers engage in these holes. These advancement fingers allow to advance the guide or the strip

  step by step each time precisely from the predetermined distance

  completed through the manufacturing machine. The intro-

  Draining the finger (s) into the hole (s) immediately ensures accurate advancement. If the guide or

  -Feuillard was seized by pincers or jaws

  it would be much more expensive to achieve. The second function of the holes appears when using the completed guide. The guide can be fixed on a floor by means of screws, dowels

  or similar organs driven into the holes. From

  Threaded rods can pass through these holes and the guide can be attached to spacers, reinforcing elements, etc. After having described the characteristics of the invention, another advantage of the guide which is obtained when it is laid in concrete is described.

  clevis. As a result of significant temperature variations

  load bearing, thermal stresses occur

  in this concrete and may cause cracking.

  This cracking occurs especially at the level of

  wall corbels, in corners and in

  very places of irregular geometric shape. In order to avoid such cracking, the concrete has been reinforced so far, a plastic material has been incorporated therein and expansion joints have been provided. The

  The guide according to the invention makes these measurements super-

  flues. It behaves like a frame element.

  Clevis concrete also flows into hollow spaces

  between the crenellations or below the horizontal

  the. This results in extensive surface contact between the guide and the screed concrete. Thermal stresses in the screed concrete are captured by

  the sides limiting the slots of the guides and are

  tenuous. They can not add up on any

  the length of a floor and cause cracks.

  Experiments have shown that using the guides according to the invention, floors or floors of

  any geometrical form, devoid of armor

  ture or expansion joints, do not

do not crack.

  An embodiment of the invention will hereinafter be described by way of example with reference to the accompanying drawings in which: FIG. 1 is a side view, partly in section, along line 1-1 of FIG. 2, a portion of a guide according to the invention; FIG. 2 is a top plan view of the guide portion shown in FIG. 1;

  FIG. 3 is a sectional view of the guide

ahead of line 3-3 of FIG. 1;

  FIG. 4 is a sectional view of the guide

  ahead of line 4-4 of FIG. 1; FIG. 5 is a perspective view of a portion of the guide with a heating pipe inserted therein; FIG. 6 is a perspective view of a

  package of guides for transport or for

  WCS; FIG. 7 is a cross-sectional view of a built-in heating floor according to the invention, the sectional plane crossing the guide along the line 3-3 of FIG. 1, and FIG. 8 is a cross-sectional view similar to FIG. 7, the section plane passing through the guide along the line 4-4 of FIG. 1. Figs. 1 and 2 illustrate a portion of a guide 12. It is formed of the horizontal portions 14

  and slots 16 located between these parts. These credits

  are bounded by the sides 18 and the bottom 20.

  In the form shown, the guide is made of a

  flat metal. The slots are pushed back in this matter. This is a simple manufacturing operation. In the slot 16 on the left is placed a heating pipe 22. Between the sides 18 and the bottom 20 are provided rounded transitions 24. Above the heating pipe 22, as shown in FIG. 2, projections 26 in the form of dimples extend into the slots 16. They are arranged in contact from above with the pipe of

  heating 22 and prevent this pipe can disengage

  ger up the niche. To further achieve this goal, the projections 26 instead of being punctual, as illustrated, may also have the shape of long bars. The longitudinal edges 28 of the guides 12 have the shape of rounded 30. The heating pipe 22 is thus protected against a notch at its places of exit crenellations. In addition, as mentioned

  higher, the resistant moment of the guides 12 is increased

  mented. As shown in Figs. 3 and 4, the edges 32 of the rounded edges 30 have the shape of sharp edges 34.

  can thus, as shown in Figs. 3 and 4,

  The two moldings 38 are also provided in the guide 12. These moldings are visible in FIGS. 3 and 4. They increase

  the moment resistant and thus the longitudinal stability

  and the torsional rigidity of the guide 12.

  Fig. 5 is a perspective view of the guide with a heating pipe inserted in place. A characteristic mark 40 is visible in addition to what was

  provided in the preceding figures. It facilitates the

  crenellations during the introduction of the heating pipes and during the cutting of the guides at length. Fig. 5 further shows how the inserted heating pipe is held up by the boss-shaped protrusions 26 and is not in contact

  at its places of exit from the slots

rounded faces.

  Fig. 6 illustrates some guides 12 grouped into a package. Such a package may include a number

  of guides greater or less than that shown.

  The guides are about 3 to 4 m long and are strapped in the package. It is under this

  form that they are delivered to the yard.

  Figs. 7 and 8 are two cross-sectional views taken at different locations of a

  underfloor heating carried out by means of a guide

  form to the invention. Both figures show that the distance between the bottom side of the heating pipe

  22 and the upper side of the floor 36 is very small.

  It should also be noted that Guide 12 is

  dark somewhat in the ground 36 by its sharp edges

  34. This depression is represented somewhat exaggerated

  d in FIG. 8. This figure, however, shows the extent to which the guide 12 can sink into the floor 36 and is thus prevented from slipping. The yoke 42 is cast on the floor 36. FIG. 7 shows, in this respect, that the cleft completely fills the space between the battlements

  horizontal sections 14. This ensures a reciprocal anchorage

  of guide 12 and clevis 42. Guide 12 refers to

  has a preferred frame and prevents the appearance

cracks.

  Some figures further illustrate the hole 44 provided in the bottom 20 of the crenellations 16. In the form shown, the guide or the strip forming this guide is grasped by these holes in a folder or a manufacturing machine. In addition, in the finished guide 12, screws, dowels, threaded rods, etc. can be introduced into holes 4i. This makes it possible to fix the guide on a load bearing floor or to other elements.

2498X03

Claims (7)

R E V E N D I C A T I 0 N S. -   1 - Guide made of a flat metallic material,   for fixing the heating pipes of a   radiant heating element, characterized in that it has slots (16) spaced from each other of equal distances in the longitudinal direction,   extending transversely, formed by folding the guide-   (12) and for receiving the heating pipes (22).   2 - Guide according to claim 1, characterized   characterized in that the crenellations (16) have, in the longitudinal direction, a square cross-section and the transitions (24) between the bottom (20) and the two sides (18) are rounded.   3 - GUIDE according to any one of revendicatioes 1 and 2, characterized in oe that protrusions in the form of dimples (26) are provided in the upper zone of the sides   (18) and extend into the crenellations (16).   % - Guide- according to any one of revendicaticns 1 to 3, characterized in that its longitudinal edges (28) are bent outwardly or downwardly to form a rounded (30).   - Guide according to claim 4, characterized in that the edges (32) of the roundings (30) are   chamfered to form sharp edges (34).   6 - Guide according to any one of claims 1   to 5, characterized in that it has two moldings (38) extending in the longitudinal direction & equal distance from its longitudinal edges and pushed towards its face lower.   Guide according to any one of the claims   1 to 6, characterized in that it is made of a steel strip,   preferably a galvanized steel strip.   8 - Guide according to any one of claims 1 to   6, characterized in that it is aluminum, brass or another metal.   9 - Guide according to any one of claims 1 to 8,   characterized in that the distance between two successive crenellations (16) is between 30 to 70 mm and is preferably 50 mm.   -Guide according to any one of claims 1 to 9,   characterized in that it has on its upper face, characteristic marks (i0) located at equal   distance from one another, for example all four crenellations (16).   11 -guide according to any one of claims 1 to 10,   characterized in that at least one hole (i4) is provided   in the bottom (20) of the crenels (16).