JPS6017980B2 - Ice rink equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ice-freezing device for a skating rink, and more specifically, the present invention relates to an ice-freezing device for a skating rink, and more particularly, by using a pongee tube, which is a soft pipe made of cold-resistant synthetic resin, as a floor pipe, it is easy to install and can be iced easily. Regarding equipment.

Conventionally, the floor pipe of ice rink equipment has
There is a method that uses a hard tube made of cold-resistant synthetic resin, but according to this method, the length of the hard tube must be prepared between the main headers on both sides of the link, but this hard tube is long and heavy. Because it is heavy, for example, if it is to be used as a pool in the summer or as a skating rink in the winter, it is difficult to assemble and dismantle it, requiring a large number of workers and specialized engineers. The supporting frame also had to be made larger. In addition, this hard pipe in particular has a large internal resistance during liquid flow, similar to steel pipes, so a relatively large diameter pipe must be used.As a result, the pipe laying pitch becomes large and the The floor line between the pipes becomes a concave part, and the upper part of the pipe often freezes into a mountain part, resulting in a bad ice floor with an uneven floor line as a whole.

Furthermore, since the floor pipe is a heavy, long hard pipe, for example, if a part of the pipe breaks in the middle of the pipe, it is difficult to repair or replace only that part.

Even if this problem of damage does not occur, if a problem occurs such as abrasion or damage to the adapter part when connecting to the main header during assembly or disassembly, and the length of the pipe becomes short, the length It is not possible to extend the pipe and a new pipe will have to be installed.
Furthermore, since each pipe is long, it is fine when it is installed on a skating rink, but if it is removed and the site is used for a pool, it is necessary to store the long pipe until the next time it is assembled. There are many problems, such as the need for a large storage space.

The present invention aims to solve these conventional problems and provide an icing device for a skating rink that has a remarkable icing effect and is easy to install.

The details of the present invention will be explained based on embodiments shown in the drawings.
1 is a plan view of a skating rink in which the present invention is implemented, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view of a pipe support.

In the figure, 1 is a floor pipe that is installed between the main headers 2 and 2 and constitutes the floor of the skating rink, and is connected to the main headers 2 and 2 by using a flexible joint, for example, a bellows tube as shown in the figure. It is connected via part 3.

That is, in order for the floor pipe 1 to allow the cooled prine to flow therein and to leak the surrounding water for forming the skating rink, the material thereof must be able to withstand the cooling temperature, and furthermore, Since there is a significant temperature difference between when brine is flowing and when it is not, it must be able to withstand expansion and contraction. The object of the present invention can be achieved by using a soft pipe made of synthetic resin as the pipe material used for the floor pipe 1. In particular, among the soft pipes made of synthetic resin, a soft pipe made of vinyl acetate is used. Tubes are preferred.

The vinyl acetate soft pipe has a cold resistance of 120%.
qo, has good pressure resistance, and has chemical resistance, especially the property that it will not be immersed in the calcium chloride solution used for brine. In the present invention, the synthetic resin soft pipe is used as the floor pipe 1, and the connecting part 3 is connected to the main header 2 using a synthetic resin flexible joint that has the same cold resistance and chemical resistance as the floor pipe 1. In addition to absorbing the shrinkage of the pipe during cooling, the length is set so that there is still room even if the damaged end of the floor pipe 1 is removed during assembly and disassembly work at the beginning and end of each season. ing. 4 is a base for forming a skating rink.

When installing a skating rink on a flat surface, place the base 4 directly on the flat surface, and when installing it in a pool, place the base 4 directly on the flat surface.
must be erected. A waterproof sheet 5 for water storage is laid on the base 4, a chevron-shaped part 7 is created around the link, and a water storage part 8 for the link is provided. As an example of creating the water storage portion 8, the convex material 6 for forming the chevron portion is continuously placed on the lower side of the edge of the spread waterproof sheet 5, and the end edge of the waterproof sheet 5 is placed on top of the convex material 6 to form the chevron portion 7. It is to create. Therefore, a freezing water storage section 8 is created within the chevron-shaped portion T, and then a support body 9 is installed so that the floor pipe 1 is installed in the water storage section 8 in a hollow supported state.

As shown in FIG. 3, the pipe support 9 is a plate body provided with insertion holes 10 opened upward according to the installation intervals of the floor pipes 1, or something equivalent thereto, which is inserted into the water storage section 8. The floor pipe 1 is placed in a hole 10 in a state of being inserted to prevent the floor pipe 1 from sagging inside. Support insertion hole 1
0', as shown in the figure, it closes upward, so the synthetic resin tube can be fitted into it.

Therefore, in order to freeze a skating rink using this device, ``first, fill the water storage section 8' with water to form the first frozen layer;
An elastic plate 11 made of rubber or the like with its lower end submerged in water is continuously positioned in front of the fence.

Next, the brine led from the brine tank 12 is transferred to the refrigerator 1.
3, and sends it to the main header 2, and then to each floor pipe 1. The sent brine flows through the floor pipe 1 and enters the main header 2 at the end of the pond while absorbing facial heat and latent heat from the surrounding water and is sent to the prine tank 12 again. This cycle is repeated one after another. In this process, the water in the water storage section 8 encloses the floor pipe 1 and the elastic plate 11
(with the lower part submerged) to form a first frozen layer as base water, then water is poured onto the base ice to a required depth, and this is frozen on the base ice.

Although the floor pipe 1' contracts when it freezes, the connecting part 3 using a flexible joint covers this contraction and prevents unreasonable contraction force from being applied in the length direction of the hose.

In addition, if the chevron-shaped portion constituting the water storage section 8 is made high enough for the ice thickness to be used as a skating rink, the two-stage or multi-stage icing work as described above is unnecessary, and the icing work can be performed in one stage or in multiple stages. .

As described above, the skating rink icing device according to the present invention utilizes cold-resistant synthetic resin pipes for the floor pipe 1 for delivering the icing brine, and as a result, the skating rink ice-freezing device according to the present invention is effective in assembling and dismantling the skating rink. However, compared to the case where a straight hard pipe is used, it is possible to extend a spirally wound soft pipe and install it via a connecting part 3 formed by using a flexible joint between both headers 2. Often, the work does not require a large number of people, and the pipes are rolled out straight away, and supports 9 are fitted into each of them, and hollow supports are placed on the waterproof sheet 5 so that a high-quality ice floe is formed. It is convenient and easy to work because all you have to do is build it up and erect it.

In particular, the internal resistance of such a soft pipe inner arm against brine is smaller than that of a hard pipe, so if it is a hard pipe, the diameter of the pipe should be 15°, whereas the typical diameter is about 3°. This makes it possible to use pipes with a diameter of 6 to 6. Therefore, the space between the core floor pipes 1 can be narrowed, so that the surface of ice formed by passing plines through the floor pipes 1 becomes flat. Unlike conventional large-diameter hard tubes, there is no unevenness on the surface. In addition, since the pipe diameter is small, there is no air remaining in the pipe, and the heat absorbed from the freezing water and freezing water is absorbed from all around the floor pipe 1 without impeding the heat absorption, thereby promoting freezing. .

Furthermore, as a result of the diameter of the pipe being reduced by 4 mm, although the number of pipes laid is greater than that of a large-diameter hard pipe, the overall capacity is smaller, so the amount of pline flowing through it is reduced, and the above-mentioned freezing capacity is reduced. Coupled with this improvement, the running cost required for prine distribution is reduced, and it is economical because it is possible to use the main header 2, brine tank 12, and refrigerator 13 even if their capacities are smaller than those of their subordinates. In addition, in the present invention, each floor pipe 1 is connected to the main header 2 via the connecting part 3 made of a flexible joint, so even if the pipe 1 contracts during freezing, the connecting part 3 The contraction force can be absorbed by the pipe 1, and there is no problem such as the connection between the pipe 1 and the main header 2 coming undone, and the support 9 that holds the floor pipe 1 in a hollow state can only face upwards through the insertion hole 10 at the entrance. A plurality of pipes 1 are formed at a constant pitch, and each pipe 1 is reliably supported by the support 9 by simply inserting the iron into the insertion hole 10, and the intervals between each pipe 1 are maintained at regular intervals. Pipe 1...
It is possible to make the quality of ice uniform by eliminating uneven freezing caused by the arrangement of the ice.

Furthermore, the floor pipe 1 installed in the water storage section 8 has an insertion hole 1 provided in the support body 9 with an upwardly closed opening, as shown in FIG.
0 and is supported in a hollow state, this floor pipe is completely hollow supported in the freezing water, and the freezing water is sent to the water storage part 8, and the pipe is submerged in the water. When the pipe is sent underwater in a submerged state, the pipe contracts due to the drop in temperature and becomes horizontally straight underwater.
Moreover, since the insertion hole 10 has an upward-facing entrance, the pipe 1 is supported by the support body 9 at the iron insertion part into the insertion hole 10, so that it can maintain a horizontally straight state, thereby making it possible to completely hold the pipe. By rerouting the pipe to a hollow position underwater, the freezing conditions for the water and sewer parts of the pipe are kept constant, making it possible to form high-quality ice on the skating rink.

Next, examples of the present invention will be shown.

Now, when we want to freeze 10 layers of ice on that outdoor skating rink, we first create a first layer of ice with a thickness of 6 layers.
Next, we compared the number of freezing days required to create a second frozen layer with a thickness of 4 and the power consumption, and the results were as follows.
It was as shown in Figure 4 of the attached table.

The experimental conditions at this time were (comparative example) 400 polyethylene rigid pipes with a diameter of 3 mm were laid at equal intervals in the water storage section.

(The present invention) 870 vinyl acetate soft pipes with a diameter of 15 mm were laid at equal intervals in the water storage section.

At this time, the outside temperature was 15 to 20 oo, the refrigeration function was 24 degrees Frozen, and the liquid was calcium chloride.

As a result, the ice of the comparative example has an uneven surface, which can cause falls when skating, and the edges of the skates can comb, making the packed ice extremely fatigued, whereas the ice according to the present invention has a flat surface and can be easily exposed to direct sunlight. Even when exposed to sunlight, only the surface melts, indicating that the quality of the ice inside is good and that the heat transfer effect from the ice to the brine in the floor pipe is good.

In particular, the number of freezing days is 1/2 compared to that of the comparative example, and the amount of electricity used is about 1/4 compared to that of the comparative example, so the difference in effect is extremely remarkable. In addition, compared to the comparative example, the number of freezing days in the present invention is 1/2, and the power consumption is higher than that in the comparative example.
Days are the number of days required when the refrigerator is operated at full capacity, whereas the present invention is the total number of days, and when converted to the number of days of full operation, it is completed in about 1.5 days.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a plan view of the skating rink, Fig. 2 is an enlarged side view, Fig. 3 is a perspective view of the floor pipe support, and Fig. 4 is a diagram showing the number of freezing days and power consumption. It is a graph showing the relationship between. 1: Floor pipe, 2: Main header, 3: Connection part, 4
: Base, 5: Waterproof sheet, 6: Dekomura, 7: Yamagata lumber, 8:
water storage part, 9: support body, 10: insertion hole, 11: elastic plate body,
12: Brine tank, 13: Freezer. Figure l Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A long support body with a large number of insertion holes opening upward is arranged in a suitable number of rows in one direction in the water storage part, and the insertion holes of this support body are filled with a soft tube made of cold-resistant synthetic resin. The floor pipe is inserted and supported, the floor pipe is erected and supported in a hollow state, and the ends of the pipe are connected to the main headers on both sides of the skating rink via connecting parts using flexible joints, and the brine is frozen with refrigerating material. A skating rink icing device that makes it possible to distribute ice.