JP2958253B2 - Ice arena dew prevention mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dew condensation preventing mechanism in an ice arena.

[0002]

2. Description of the Related Art The present applicant has proposed a method and an apparatus for preventing dew condensation on an inner wall surface such as a ceiling of an indoor ice arena as a method and apparatus for preventing dew condensation on an ice arena (Japanese Patent Laid-Open No. 3-76952). . Prevention of dew condensation in the ice arena is particularly necessary in facilities that operate throughout the year, such as in summer, when the outside temperature rises.In the previous proposal, the air heated using the exhaust heat of refrigerators and the like was cooled to the ceiling. The dew condensation was prevented by sending the oil along the inner wall surface of the section.

FIG. 8 shows a method for preventing dew condensation on the ice arena. In the figure, 10 is an ice arena, 12 is an air blowing section, 14 is an ice surface, 16 is a refrigerator, 18 is a blower, 20 is a boiler, and 22 is a heater. The blower 18 uses the exhaust heat of the refrigerator 16 or the heat of the outside air to blow out the collected air heated by the heater 22 and the outside air to the blower 12.
To the ice arena 10 to prevent condensation from forming on the ceiling. If the exhaust heat from the refrigerator 16 or the like is insufficient, the boiler 20 is used together to heat the air for delivery.

[0004]

The above-described method of preventing dew condensation on an ice arena is generally considered to be inappropriate for indoor heating by flowing hot air through an ice arena in summer or the like when the outside temperature is high and the humidity is high. It is possible to suitably prevent condensation even under conditions where condensation is extremely likely to occur,
This makes it possible to obtain a high-quality ice surface with a smooth surface. However, when targeting a wide area such as an ice arena, a considerable amount of heat energy is required to allow hot air to flow over a large area, and dew condensation on the entire ceiling is almost evenly prevented. There was a problem that was difficult.

The present invention has been made to solve these problems, and an object of the present invention is to make it possible to efficiently prevent dew condensation on an ice arena, thereby further preventing dew condensation on an ice arena. It is an object of the present invention to provide a dew condensation preventing mechanism for an ice arena, which makes it possible to reduce running costs by effectively using energy.

[0006]

The present invention has the following arrangement to achieve the above object. That is, in ice arenas condensation preventing mechanism for preventing the dew condensation by warming the inner wall surface of the ceiling portion or the like of the ice arena, a heat collector by solar
Air flows through installing solar collecting heat external air flow path on the roof of the eye <br/> scan Arena Te, directly to the ceiling or
Along with the ceiling, the external air
An internal air flow passage communicating with the external air flow passage;
A blower that circulates air between the passage and the internal air flow path.
Provided with, as the supply of heat to the heat radiating portion, a heat storage unit for heat storage heat in the heat collector, and a sheet heat portion such as a boiler provided, temperature and humidity sensors that monitor the condensation in the Ice Arena A control unit that controls the heat storage unit and / or the heat supply unit to supply heat to the heat radiation unit when the temperature near the ceiling or the inner wall surface of the ice arena becomes lower than the dew point temperature based on the output of It is characterized by having.

[0007]

In the heat collecting section, heat is collected by utilizing natural energy such as solar heat, and this heat is transmitted to the heat radiating section to warm the inner wall surface of the ice arena and prevent dew condensation. By using natural energy, it is possible to effectively prevent dew condensation. Further, Ru can be achieved the required condensation prevention by heating the sheet by a combination of heat sources, such as Kyunetsu portion or the heat storage unit in the case of insufficient heat supply from the heat collector.

[0008]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory view showing a basic configuration of a dew condensation preventing mechanism of an ice arena according to the present invention. That is, the dew condensation preventing mechanism of the ice arena according to the present invention utilizes natural energy such as solar heat and geothermal heat to prevent dew condensation, and is characterized by achieving more efficient dew condensation prevention than the conventional method.

As shown in FIG. 1, the dew condensation preventing mechanism according to the present invention includes a heat collecting section 30 for collecting natural energy such as solar heat and supplying heat, and a heat collecting section 30 installed in an ice arena. The heat dissipating unit 32 includes a heat dissipating unit 32 for dissipating the transmitted heat and preventing dew condensation, and a heat supply unit 34 and a heat accumulating unit 36 for supplying heat necessary for preventing dew condensation to the heat dissipating unit. The heat supplying section 34 is a mechanism for additionally supplying heat when the heat supplied from the heat collecting section 30 to the heat radiating section 32 does not reach the amount of heat required for preventing dew condensation.
The purpose is to store the heat collected in step (1) and gradually supply it to the heat radiating section 32.

Reference numeral 38 denotes a temperature and humidity sensor for monitoring dew condensation in the ice arena. A control unit 40 controls the operation of the heat supply unit 34 and the heat storage unit 36 based on the output of the temperature and humidity sensor 38. The dew condensation preventing mechanism of the ice arena according to the present invention includes the heat collecting section 30, the heat radiating section 32,
The heat supply unit 34, the heat storage unit 36, and the like are controlled so as to prevent dew condensation efficiently as a whole, and various methods can be considered as an actual installation form or use form.

(Embodiment 1) An embodiment utilizing solar heat. The present embodiment is characterized in that heat is transferred into the ice arena using the heat pipe 42. FIG. 2 shows a schematic configuration of the heat collecting section and the heat radiating section of the present embodiment. In the same figure, part A shows the outside of the ice arena, and part B shows the inside of the ice arena. As the heat collecting part, a heat pipe 42 provided with a heat collecting plate 44 is installed in a high temperature part outside the ice arena, and the other end of the heat pipe 42 is drawn into the ice arena to be a heat radiating part. In the ice arena, a heat radiating plate 46 is attached to the heat pipe 42 so that heat from the heat pipe 42 is easily radiated from the heat radiating plate 46.

Since the heat pipe 42 has a function of conducting heat very efficiently from the high temperature section to the low temperature section, heat is efficiently transferred from the external high temperature section into the ice arena and the dew condensation on the ceiling and the like is prevented. Can be heated. In the ice arena, the heat pipe 42 and the heat radiating plate 46 are installed close to the inside or outside of the wall surface or the ceiling surface, so that external heat can be effectively used for preventing dew condensation. Note that a ceiling material or an inner wall material may be formed by a panel incorporating the heat pipe 42, and the heat pipe 42 may be directly embedded in the ceiling or the inner wall.

Since the heat pipe 42 can provide a suitable heat conduction even when installed over a long distance, it can be effectively used even when a wide area such as an ice arena is to be heated. Further, since heat can be dissipated over a certain area by the heat radiating plate 46 attached to the heat pipe 42, a wide range of heating can be performed by disposing the heat pipes 42 at certain intervals.

Further, the heat pipe 42 has an advantage that other energy such as electric power is not required for transferring heat energy, and is effective in terms of running cost. In addition,
It is effective to install the heat collecting part of the heat pipe 42 in an external high-temperature part where sunlight is directly irradiated, such as the roof of an ice arena. If it is high, it can collect heat and use it for heating.

Although the dew condensation condition varies depending on the temperature and humidity, the heating action by the heat pipe 42 may be a condition sufficient to prevent dew condensation in the ice arena.
It suffices if the temperature can be raised to about 8 to 10 ° C. at a humidity of 80 to 90%. In the summer season, the outside air temperature becomes considerably high and the heat energy by sunlight is strong, so that the heating by the heat pipe 42 can sufficiently prevent the dew condensation.

If sufficient heat energy to prevent dew condensation cannot be obtained due to heat collection of the heat pipe 42 due to seasonal conditions, weather, etc., the heat supply unit 34 such as a boiler or the heat storage unit is additionally required. It goes without saying that the unit 36 may be used in combination. The shortage of thermal energy can be easily compensated for by utilizing the exhaust heat of the refrigerator or the waste heat of the electric room.

(Embodiment 2) An embodiment utilizing solar heat. Unlike Embodiment 1, water is used as a heat medium. FIG. 3 shows a schematic configuration of the present embodiment. It has a heat collector 30 installed outside the ice arena, a heat radiator 32 installed inside the ice arena, and a heat storage tank 47. Reference numeral 48 denotes a pipe provided between the heat collection unit 30 and the heat storage tank 47, and reference numeral 49 denotes a pipe provided between the heat storage tank 47 and the heat radiation unit 32. 50 and 52 are pumps for circulating water between the heat collecting unit 30 and the heat storage tank 47 and between the heat storage tank 47 and the heat radiating unit 32, respectively.

The heat collecting section 30 is preferably installed on a roof or the like where the sunlight is directly applied in order to easily collect solar heat. The heat radiating section 32 is installed close to the ceiling of the ice arena and dissipates heat near the ceiling. The pump 50 is a heat collecting unit 30
Is operated when the water temperature T1 is higher than the water temperature T2 of the heat storage tank 47, and the pump 52 is controlled to operate when the temperature T3 near the ceiling or the inner wall surface of the ice arena becomes lower than the dew point temperature. By performing such control, the heat storage tank 47 functions as a heat exchange unit that stores heat with the heat collection unit 30 and as a heat exchange unit that supplies sufficient heat to the heat radiation unit 32 to prevent dew condensation. In addition, also in the case of this embodiment, the heat radiating part 32 can be installed so as to be in direct contact with the ceiling.

In the method of supplying heat to the heat radiating portion 32 by using the heat storage tank 47 as in the embodiment, it is possible to control such that only the amount of heat necessary for preventing dew condensation is supplied. In this case, heat is not directly heated as in the case where the heat energy is used, so that heat energy can be used without waste. Further, since heat can be stored in the heat storage tank 47, there is an advantage that even when sunlight is not shining at night, heat can be supplied to the radiator 32 to prevent dew condensation. The heat storage tank 4
7 Other uses other than dew condensation prevention include indoor heating and hot water supply, and in some cases, reverse heat collection to use the heat in the heat storage tank 47 to melt snow on the roof in winter. It is also possible.

In the present embodiment, if the heat collection by the heat collection unit 30 is insufficient, the heat supply unit 34 and the heat storage unit 36 that uses the exhaust heat of the refrigerator or the waste heat of the electric room are also used. To make up for the shortfall. In this embodiment, water is used as the heat medium. However, use of antifreeze as the heat medium in consideration of use in winter is also effective.

(Embodiment 3) This embodiment is characterized in that air collected using solar heat is sent into an ice arena to prevent dew condensation. FIG. 4 shows a schematic configuration of the present embodiment. Reference numeral 54 denotes an external air flow path as a heat collecting portion, which is configured to heat the air with solar heat or the like when the air flows through the flow path. The external air flow path 54 is installed at a site where external heat is easily collected, such as on the roof of an ice arena, so as to be efficiently warmed when air passes therethrough. The external air flow path 54 has a certain flow path length, and heat collecting fins are provided in the flow path. It is good to install.

Reference numeral 56 denotes an internal air flow path serving as a heat dissipating portion which is installed along a portion where dew condensation easily occurs, such as a ceiling portion, inside the ice arena. The external air flow path 54 for collecting heat and the internal air flow path 56 are provided in communication with each other, and air is circulated and flows between the external air flow path 54 and the internal air flow path 56. 58 and 60 are blowers for air circulation, and the air is circulated in the direction of the arrow in the figure. Reference numeral 62 denotes a heat source unit such as a heat supply unit and a heat storage unit used in combination with solar heat.

The dew condensation preventing mechanism of this embodiment has an internal air flow path 56 on the inner surface of the ice arena.
The dew condensation is prevented by allowing heated air to flow through the inside 6. Air circulation is temperature T of outdoor heat collecting part
4 is performed when the temperature is higher than the temperature T5 in the internal air flow path 56, that is, when the outside air temperature is higher than the internal temperature, and the heated air flows through the internal air flow path 56 to prevent dew condensation. I do. In addition, since the air flows along the outer surface of the internal air channel 56 on the indoor side of the ice arena, the internal air channel 5
Alternatively, an air blowing portion 64 may be provided to branch off from an inflow portion of the air to the air inlet 6.

The internal air passage 56 or the internal air passage 5
The cooled air flowing along the wall surface of No. 6 is collected at the exhaust port and returned to the external air passage 54 to be heated again. Thus, the dew condensation is prevented by the air warmed in the external air passage 56. It is effective to install the external air flow path 54 on a roof or the like where solar heat is directly irradiated so that the air can be efficiently heated. In this case, it is preferable to heat the air by heating the air by another heat source 62.

When the heat source section 62 is used, the amount of air from the external air flow path 54 that enters the heat source section 62 and the internal air flow path 5
The amount of air from 6 is adjusted with a damper, and the temperature T1
Blower 58 so that the air temperature is higher than the return air temperature T6.
It is good to control the amount of air. By heating the air in the heat source section 62, even when the amount of heat is insufficient seasonally, it is possible to appropriately prevent dew condensation.

In the mechanism of this embodiment, it is also possible to use heating by a heat pipe in the same manner as described in the previous embodiment. Further, a form in which a heat pipe type heat exchanger is used for the heat source section 62 and external heat is used as a part of the heat source is also conceivable.

(Embodiment 4) This embodiment is characterized by utilizing geothermal energy, hot spring heat, and waste heat. FIG. 5 shows a schematic configuration thereof. One end of the heat pipe 42 is buried in the heat source part to utilize geothermal heat and hot spring heat, and the other end is drawn into the ice arena and arranged at a location such as a ceiling to prevent dew condensation. The configuration of the heat radiating plate 46 and the like is the same as in the first embodiment. FIG. 5 (a) shows a configuration using geothermal energy, and FIG. 5 (b) shows a configuration using hot spring heat and drainage heat. One end of the heat pipe 42 is installed in the ground, in a hot spring, and in hot drainage, respectively.

This embodiment also has the advantage that no other energy such as electric power is required for the transfer of thermal energy, as in the first embodiment, the effect of fluctuations in outside air temperature is small, and the thermal energy source is stable. There is an advantage that there is.

(Embodiment 5) This embodiment is an embodiment in which dew condensation is prevented by using heat generated by electricity. FIG. 6 shows a schematic configuration thereof. 66 is a radiator such as a hotbed wire, a planar heating element, etc.
Install on the ceiling etc. where dew condensation should be prevented in the ice arena. The hotbed wire and the planar heating element are placed close to or in contact with the inner wall surface or buried inside a ceiling material or the like so that the inner wall surface can be suitably heated. The heat radiator 66 may be installed on the back side of the ceiling. Reference numeral 38 denotes a temperature / humidity sensor which controls the current flowing through the radiator 66 so as to prevent dew condensation by sensor control. The method using heat generated by electricity has advantages that the configuration is simple and that dew condensation can be stably prevented regardless of the weather or the like.

(Embodiment 6) This embodiment is an embodiment in which dew condensation is prevented using far infrared rays. FIG. 7 shows a schematic configuration thereof. Reference numeral 68 denotes a far-infrared ray generating device, which is arranged so as to irradiate far-infrared rays toward an easily condensed portion such as a ceiling inside the ice arena. The far-infrared ray generator uses gas, kerosene, electricity or the like as an energy source. The far-infrared ray generator is installed on a floor, a wall, or the like where use is not hindered, and a ceiling or the like is heated to prevent condensation. The amount of heat generated by the far-infrared ray generator is a temperature / humidity sensor 38.
Is controlled based on the detection result. The prevention of dew condensation using far-infrared rays also has advantages that the device configuration is simple and that dew condensation can be stably prevented.

[0031]

According to the dew condensation preventing mechanism for an ice arena according to the present invention, as described above, dew condensation can be prevented by utilizing natural energy such as solar heat.
Thermal energy can be effectively used to prevent dew condensation over a wide area, and efficient dew condensation can be prevented. In particular, facilities that are used throughout the year can be used effectively. In addition, the combined use of the heat source unit has a remarkable effect such as the use of natural energy and stable prevention of dew condensation.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a dew condensation preventing mechanism of an ice arena.

FIG. 2 is an explanatory diagram showing a configuration of a first embodiment of a dew condensation preventing mechanism of an ice arena.

FIG. 3 is an explanatory view showing a configuration of a second embodiment of a dew condensation preventing mechanism of an ice arena.

FIG. 4 is an explanatory diagram showing a configuration of a third embodiment of a dew condensation preventing mechanism for an ice arena.

FIG. 5 is an explanatory diagram showing a configuration of a fourth embodiment of a dew condensation preventing mechanism for an ice arena.

FIG. 6 is an explanatory diagram showing a configuration of a fifth embodiment of a dew condensation preventing mechanism for an ice arena.

FIG. 7 is an explanatory view showing a configuration of a sixth embodiment of a dew condensation preventing mechanism for an ice arena.

FIG. 8 is an explanatory diagram showing a configuration of a conventional example of a dew condensation preventing device for an ice arena.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ice arena 12 Air blowing part 14 Ice surface part 16 Refrigerator 18 Blower part 20 Boiler 30 Heat collecting part 32 Heat radiating part 34 Heat supply part 36 Heat storage part 38 Temperature / humidity sensor 40 Control part 42 Heat pipe 44 Heat collecting plate 46 Heat radiating plate 47 heat storage tank 48, 49 piping 50, 52 pump 54 external air flow path 56 internal air flow path 58, 60 blower 62 heat source 66 radiator 68 far infrared ray generator

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Uchibori 524, Prefectural Town, Nagano City, Nagano Prefecture Kitano Construction Co., Ltd. (72) Inventor Mitsuo Machida 524, Prefecture Town, Nagano City, Nagano Prefecture Kitano Construction Co. (72) Inventor Shigeaki Ogiwara 8146-3 Wakaho Watanai, Nagano City, Nagano Pref. Kitano Construction Co., Ltd. (56) References JP-A-3-76952 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) E04B 1/64 E04H 3/14

Claims (1)

(57) [Claims] 1. A dew condensation preventing mechanism for an ice arena, which heats an inner wall surface such as a ceiling of an ice arena to prevent dew condensation, wherein air flows as a heat collecting part by solar heat to collect solar heat.
The external air flow path is installed on the roof of the Ice Arena, as a heat dissipation unit to be installed directly or close to the ceiling of
Internal air flow path that communicates with the external air flow path along the ceiling
And circulates air between the external air flow path and the internal air flow path.
And a heat storage unit that stores heat in the heat collection unit and a heat supply unit such as a boiler as a heat supply unit for the heat radiation unit, and monitors dew condensation in the ice arena. Based on the output of the temperature and humidity sensor, when the temperature near the ceiling or the inner wall surface of the ice arena becomes equal to or lower than the dew point temperature, control is performed to supply heat from the heat storage unit and / or the heat supply unit to the heat radiation unit. A dew-prevention mechanism for the ice arena, which has a section.