FI85540C - FOERFARANDE FOER LAEGGNING AV KYLROER. - Google Patents

Description

85540

The invention relates to a method of installing cooling pipes for freezing artificial ice, in which the cooling pipes are installed and supported on site by means of supports, the means of which determine the height position and the mutual distance of the pipes.

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As will be apparent from the foregoing, the present invention relates to a method of installing cooling pipes, in which sheets formed of steel sheet, other metal sheet, other thermally conductive material or other material, cooling pipes made of a suitable material, the plate giving the pipes a reliable lower support and determining the height position of the pipes and the appropriately selected profile shape, divisions - height or distance between systems, tongues, etc. determine the distance between the pipes stresses while the plate may act as a thermally conductive and / or reflective layer.

It is preferred to provide the boards with suitable routing so that water is passed through the board to the moisture permeable layers below it, whereby the moisture stress on the board 20 can be reduced or the stress can be eliminated. In addition, it is preferable that the material of the sheet is moisture and corrosion resistant, or the sheet is coated with an anti-corrosion coating such as zinc, plastic, paint, etc. It is further preferred that the sheet material is thermally conductive and / or reflective • or the sheet is coated with a reflective layer.

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For example, artificial ice in an artificial ice rink is usually made by leveling the field with coarse gravel, etc. A finer-grained material such as - * - sand, stone ash, etc. is applied on top of this. track tubes. Freezing is done using either $ 25 mm PEL 30 plastic pipe or fi 17 mm - fi 23 mm steel pipe as the track piping. The purpose of the coolant introduced into the track piping is to freeze and maintain the ice on the track. According to established practice, the pipes in the track pipeline run at a distance of 100 mm from each other.

Although the freezing of an artificial ice rink has been described above, the invention is in no way limited to artificial ice rinks, but the invention relates to all those objects where the use of artificial ice is justified.

2 85540 1 The problem in the solutions of artificial ice rinks has generally been that the freezing takes place slowly and the ice layer has had to be made quite thick, e.g. due to poorly insulating / reflective material choices.

5 The installation of cooling pipes in, for example, artificial ice rinks has caused problems, especially when they are loosely installed in a layer of sand, stone ash, etc., because reliable support for the pipes has not been traced, so that the vertical and horizontal distance between the pipes has not been kept constant. Various attempts have been made to overcome this problem, as can be seen from the known solutions 10 described below.

There are e.g. a procedure in which a grooved asphalt layer is cast on the surface of the leveled field, in which grooves cooling pipes are installed. The use of a cast asphalt layer for pipe installation has proven to be an expensive solution. Asphalt application is also dependent on weather conditions such as rain and air temperature. Its other drawbacks are e.g. the fact that if the track has to be repaired for some reason (e.g. ground movement), the asphalt layer must be re-cast.

Finnish patent No. 31687 discloses an arrangement for outdoor air ice paths, where beams (wood runs) are arranged on a gravel or similar base, which support cooling pipes and spacers determining the position of the pipes. A finely crushed material such as white marble sand has been used as a reflective material. These spacers are not further defined, but are not a widthwise continuous substrate, as in the invention, but it can be deduced from the word spacer that it is a part installed between two pipes 25, which is probably short and at most the edge of the wood run. Separate wood runs have been used to support the pipes and spacers below, ".:.: While in the invention the plate also functions in this function.

: In the invention, boards with different mounting guides thus operate simultaneously in several tasks. They act as a support under the pipes, keeping the pipes in place in the height direction while the distance between the installation guides determines and maintains the distance between the pipes. The plates cover in length and width the entire area where the cooling pipes are installed, can act as heat exchangers and. as equalizers and, if desired, can also act as heat reflectors, so that the solution according to the invention differs substantially in all respects from the solution of Finnish patent no. 31687.

- - * U.S. Patent No. 3,485,057 has e.g. the method of installation of the cooling pipes is shown,. . wherein the pipes are supported on shaped strips having a groove for installing the pipes 40. Also in relation to this U.S. patent, the method of the invention for installing pipes 3,85540 1 is completely different.

A further advantage of the method according to the invention is that when using a highly thermally conductive plate, heat is efficiently transferred on the surfaces of the plate, effectively equalizing the temperature in the space between the pipes, whereby freezing is faster and the ice layer can be thinner. In addition, the plates and tubes can be reused if necessary.

In order to achieve the objects set out above and which will become apparent later, the invention is mainly characterized in that the area to be frozen is covered with form plates and that the cooling pipes are mounted and supported on guides provided by the material of said form plate.

The following detailed description of the invention shows by way of example the use of the invention in freezing artificial ice rinks with reference to some embodiments of the invention shown in the figures of the accompanying drawings 15 in said application, to which application and details shown in the figures are not narrowly limited. The same method can also be used to install outdoor tracks such as sports fields or the like, as well as street areas and similar heating pipes, by replacing the cooling pipes with heating pipes in which the heating liquid is water or the like.

Figure 1 shows a substrate (1) made of coarse soil such as gravel, sorghum, etc., on which a leveling layer (2) made of sand, stone ash, light gravel, blast furnace slag pellet or similar moisture-permeable material is placed, on which form plates, in this case corrugated sheets (3 ) is mounted so that the lower surface (3a) of the form plate (3) or all the lower surfaces (3a, 3b, 3c) rest on the leveling layer (2). Holes (3d) are made in the form plate (3), e.g. to conduct water to the lower layers (1, 2). •: · The cooling pipes (4) are installed in the upward opening grooves (3e) of the form plate (3).

On top of the form plate (3) there is a surface layer 30 (5) made of sand, stone ash or similar material. On top of this is a frozen layer of ice (6).

Figure 2 shows a substrate (1) made of coarse soil such as gravel, sorghum, etc., with a leveling layer (2) made of sand, stone ash, light gravel, blast furnace slag pellet or other moisture-permeable material, on which tongues 35 (3f), tongues ( 3g) or similar shaped plates (3 ') with mounting guides are mounted so that the plates (3') rest on the leveling layer (2). Holes (3d) - are made in the plate (3 '); * -: or holes are created when mounting guides (3f), tabs (3g), etc. are made to conduct water, moisture, etc. to the underlying layers (1,2). The cooling pipes (4) are mounted between the upwardly directed systems (3f), tabs (3g) of the plate (3 '). 40 The surface of the plate (3 ') is a surface layer (5) made of sand, stone ash or similar material. On top of this is a frozen layer of ice (6).

Claims (9)

1. A method for mounting cooling pipes (4) for use in freezing of canisters, in which the cooling pipes (4) are mounted and supported against support at the building site, by means of which support is determined the height position and spacing of the pipes, characterized in that the area which The freezing pipes (3,3 ') and the cooling pipes (4) must be mounted and supported against the control means (3e, 3f, 3g) provided by the material on said mold plate (3,3'). Method according to claim 1, characterized in that the cooling pipes (4) are mounted in the locking spaces (3e) in the molding discs (3,3 '), which locking spaces (3e) open upwards or between bumps (3f), protrusions (3g) or the like. projections at fixed intervals aimed upwards. Method according to claim 1 or 2, characterized in that heels (3d) are made in the molding discs (3,3 ') for passing water through the molding discs (3,3'). 4. A method according to any of claims 1-3, characterized in that the molding discs (3,3 ') function as heat transfer and equalizers between the adjacent cooling pipes (4). Process according to any of claims 1-4, characterized in that the molding sheets (3,3 ') are made of material which reflects heat radiation and / or are coated with a layer that reflects heat radiation. • · Process according to any of claims 1-5, characterized in that the molding sheets (3,3 ') are made of corrosion-resistant material and / or are coated against corrosion. • t • ♦ Use of the method according to any of claims 1-6 for mounting cooling tubes (4) for artisan paths. Use of the method according to any one of claims 1-6 for mounting cooling tubes (4) for artificial flasks. Use of the method according to any of claims 1-6 for mounting heating pipes for outdoor courses, such as sports plans or counterparts and street areas or the like. • ·