JP2021029894A - Cool bench system - Google Patents

Abstract

To provide a cool bench system capable of being easily transported and assembled, suppressing a running cost when cooling an outdoor space low, and allowing people to rest while obtaining more comfortable cool feeling than ever before.SOLUTION: A cool bench system 1 comprises: an upright pillar 2 upright while having a roughly cylindrical shape with a closed top face; and a bench part 3 connected to a lower end side of the upright pillar 2, and allowing a user to be seated. The upright pillar 2 includes: an inner cylindrical body 21 of a cylindrical shape; a water-absorbing sheet 22 arranged so as to cover the surface of the inner cylindrical body 21; a flexible pipe 23 spirally arranged along the surface of the water-absorbing sheet 22 to allow cooling water to flow; and an outer cylindrical body 24 of a cylindrical shape, arranged outside the flexible pipe 23. With the configuration, the cool bench system 1 can be easily transported and assembled, suppresses a running cost when cooling an outdoor space low, and allows people to rest while obtaining more comfortable cool feeling than ever before.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cool bench system in which a cool space is created in a fixed outdoor space so that people can easily rest while getting a cool feeling.

In recent years, the temperature in summer has risen due to the phenomenon of global warming, and the demand for outdoor air conditioners that can be used in plazas where people gather, outdoor event venues, etc. is increasing. Conventionally, there are various outdoor cooling devices for cooling a certain outdoor space. For example, a device that ejects mist from a spray nozzle and alleviates the heat wave in summer by the latent heat accompanying the evaporation of this mist has become widespread. doing.

Further, for example, an outdoor cooling system having an arched roof on the upper part, an outdoor passage provided with side walls and doors on both sides, and a cooling mechanism for cooling air on the lower surface of the passage floor is disclosed. (See, for example, Patent Document 1). In this system, the air on the floor surface is cooled by the cooling mechanism, and the side walls and doors play a role of preventing the diffusion of the cooled air to form a "cold air pool", which allows passers-by to feel cool from their feet. ..

In addition, the cold heat obtained by the heat pump is sent to the radiant panel provided on the truck to a transportable truck equipped with a gas heat pump and gas tank on the loading platform, and the radiant heat of the surrounding people is absorbed to give a cool feeling outdoors. An air conditioner is disclosed (see, for example, Patent Document 2). Furthermore, by spraying water from the nozzle while rotating, it prevents the mist from adhering to the nozzle and piping and prevents water droplets from falling, and the heat of vaporization when the mist evaporates without wetting the passersby directly underneath makes the surroundings. A cooling device that lowers the temperature of air to give a cool feeling is disclosed (see, for example, Patent Document 3). Furthermore, an outdoor heating / cooling system is also disclosed in which the air sucked from the air return part at the waist of the seat is cooled by an HVAC device and cold air is blown out from the air outlets at the feet of the seat and the back of the head to give the seated user a feeling of coolness. (See, for example, Patent Document 4).

Japanese Unexamined Patent Publication No. 2017-053521 JP-A-2015-178924 Japanese Unexamined Patent Publication No. 2011-220644 Special Table 2015-508683

However, in the outdoor cooling method using the spray nozzle type mist, the human hair and face get wet before evaporating, which causes discomfort to the user, and if the particle size is small, it is affected by the outdoor wind. It is easy to obtain a cooling effect at all depending on the wind direction and speed of the natural wind. Further, since a large amount of water is required to use the spray nozzle, there is a problem that the installation conditions are limited and the running cost is high.

Further, in the outdoor cooling system shown in Patent Document 1, since the cooling mechanism is installed under the floor of the aisle, the feet are cooled, but the overhead (upper body) cannot obtain a sufficient cooling feeling. There is also the problem that it cannot be relocated due to its permanent structure. Further, since the outdoor air conditioner shown in Patent Document 2 is an in-vehicle type, it can be used only in a place where a car can ride and is not versatile. As described above, there is still much room for improvement in the conventional outdoor cooling system.

The present invention has been made in view of the above problems, can be easily transported and assembled, keeps the running cost at the time of cooling the outdoor space low, and gives people an unprecedented comfortable cooling feeling. The purpose is to provide a cool bench system that allows you to rest while resting.

In order to solve the above problems, the present invention is a cool bench system that forms a cool space in a fixed space, and is connected to an upright pillar having a substantially cylindrical shape with a closed upper surface and a lower end side of the upright pillar. The upright pillar comprises a cylindrical inner cylinder, a water-absorbent sheet arranged to cover the surface of the inner cylinder, and a spiral along the surface of the water-absorbent sheet. It is characterized by having a water supply pipe arranged in a shape and flowing cooling water, and a cylindrical outer cylindrical body arranged outside the water supply pipe.

In this cool bench system, a heat source machine for generating cooling water is further provided, and the cooling water generated by the heat source machine is connected to the upper surface of the upright pillar via a cooling water pipe. It is preferable that a header for supplying water to the water supply pipe by a header method is arranged.

In this cool bench system, it is preferable that a connecting member is connected to the lower end side of the upright pillar in order to connect to the bench portion.

In this cool bench system, the bench portion includes a backrest surface formed along the outer peripheral shape of the upright pillar, a seat surface portion extending in the horizontal direction from the lower end side of the backrest surface, and the connecting member. It is preferable that the upright pillar support portion to be fitted and the base for supporting the seat surface portion from below are provided, and the backrest surface and the seat surface portion are made of a metal having high thermal conductivity.

In this cool bench system, the seat surface portion has a water storage space in its internal space for storing condensed water formed on the surface of the water supply pipe and dripping downward along the water absorbing sheet. , It is preferable that a plurality of PCM containers filled with a latent heat storage material (PCM) composition are arranged in the water storage space.

In this cool bench system, the bench portion further has a water storage section for storing condensed water formed on the surface of the water pipe and dripping downward along the water absorbing sheet. A plate for PCM provided adjacently in a plate shape is arranged under the seat surface of the surface portion, and the seat surface portion is a foldable seat surface portion rotatably connected to the lower end side of the backrest surface. Is preferable.

In this cool bench system, the base has an opening surface on one side thereof, and the cool bench system further includes a blower for blowing outside air from the opening surface into the internal space of the upright pillar, and the inside thereof. The cylindrical body and the outer cylindrical body preferably have a plurality of through holes on the surface thereof for passing the air blown from the blower to the outside.

In this cool bench system, the distance between adjacent water pipes of the spirally arranged water pipes is preferably in the range of 1 mm to 10 mm.

The cool bench system according to the present invention includes an upright pillar having a substantially cylindrical shape with an upper surface closed and standing upright, and a bench portion connected to the lower end side of the upright pillar for a user to sit on. The upright pillars are a cylindrical inner cylinder, a water-absorbent sheet arranged so as to cover the surface of the inner cylinder, and a flexible pipe spirally arranged along the surface of the water-absorbent sheet through which cooling water flows. And has a cylindrical outer cylindrical body arranged on the outer side of this flexible tube. With this configuration, the cool bench system according to the present invention can be easily transported and assembled, keeps the running cost when cooling the outdoor space low, and allows people to rest while getting a comfortable feeling of coolness that has never been seen before. it can.

It is a figure explaining the heat transfer of the cool bench system which concerns on Embodiment 1 of this invention. (A) A partial perspective view of the upright pillars forming the cool bench system of the same as above, (b) a plan view of the tubular structure constituting the upright pillar of the same as above, and (c) a sectional view taken along line AA of the tubular structure of the same as above. .. It is an enlarged reference view of the dotted line part of FIG. 3C. It is explanatory drawing of the connection state of the upright pillar and the bench part provided in the cool bench system as above. (A) The bottom view of the bench portion of the same as above, and (b) the explanatory view of the structure of the bench portion of the same as above. It is an image diagram which shows the usage state of the cool bench system as above. It is an image diagram which shows the usage state of the cool bench system as above. It is an overall view of the system which concerns on the modification 2 of Embodiment 1 of the same above. It is a figure explaining the heat transfer of the cool bench system which concerns on Embodiment 2 of this invention.

(Embodiment 1)
The cool bench system according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7. The cool bench system according to the first embodiment provides an environment in which people can rest while feeling cool in a certain outdoor space, and in particular, in a hot summer or in a tropical country, for example, a park where people gather. , Squares, event venues and construction sites.

First, the overall structure of the cool bench system according to the first embodiment will be described with reference to FIG. In the cool bench system 1, a cool space is formed in a fixed outdoor space, and an upright pillar 2 having a substantially cylindrical shape with an upper surface closed and standing upright, and an upright pillar 2 connected to the lower end side of the upright pillar 2 for a user to sit on. The bench portion 3 of the above is provided. The cool bench system 1 has a size of, for example, a width dimension of 1500 (mm) × a height dimension of 2000 (mm).

As shown in FIG. 2A, the upright pillar 2 has a plurality of tubular structures 2a connected in the vertical direction inside. As shown in FIG. 2C, the tubular structure 2a is a metal, cylindrical inner cylindrical body 21, a water-absorbent sheet 22 arranged so as to cover the surface of the inner cylindrical body 21, and a water-absorbent sheet. It has a flexible pipe (water supply pipe) 23 that is spirally arranged along the surface of 22 and through which cooling water flows, and a metal cylindrical outer cylindrical body 24 that is arranged outside the flexible pipe 23. The upright pillar 2 does not necessarily have to be composed of a plurality of tubular constituents 2a, and one upright pillar 2 is an inner cylinder 21, a water absorbing sheet 22, a flexible pipe (water pipe) 23, and an outer cylinder. A structure having a body 24 may be used. As shown in FIG. 2B, the tubular structure 2a has a connecting angle 25 and is connected in the vertical direction. The flexible tube 23 is locked from the outside using the bind wire 26.

The flexible pipe 23 is one method, as long as it has a flexible structure capable of supplying cooling water, and a single pipe having a smooth surface is also possible. In the first embodiment, the flexible tube 23, which has a large surface area (heat exchange efficiency: high) even at the same distance and is flexible and absorbs displacement and movement by bending, is suitable for spirally winding around a cylindrical body. The material of the flexible tube 23 is preferably aluminum or copper, or SUS (austenitic) 304 or 316, which has corrosion resistance, in terms of thermal conductivity. The flexible tube 23 is generally a thin product, and can be used as a heat exchange material.

For the water-absorbent sheet 22, for example, a non-woven felt that has water retention and hydrophilicity and is capable of uniformly diffusing water by utilizing the capillary phenomenon is used. In addition, polyester, rayon, nylon, pulp, regenerated cellulose, cupra, acetate, vinylon, acrylic, wool, etc. A PVA sponge or the like may be used. The flexible pipe 23 is, for example, a stainless steel corrugated pipe, and is lightweight and flexible, so that it can be easily installed.

As shown in FIG. 1, the cool bench system 1 includes a heat source machine 4 (heat pump type chiller) for generating cooling water. Further, the heat source machine 4 and the cooling water pipe 4a are connected to the upper surface of the upright pillar 2 via a cooling water pipe 4a, and the cooling water generated by the heat source machine 4 is headed to each flexible pipe 23 of the plurality of tubular structures 2a. A header 2b for supplying water is arranged. Further, a header 2b for discharging water for returning the hot water circulated through the flexible pipe 23 to the heat source machine via the cooling water pipe 4a is also arranged. Specifically, as shown in FIG. 2C, the inner cylindrical body 21 of the tubular structure 2a is formed with flexible pipe holes 21b and 21c at two locations, and passes through the holes 21b and 21c. The water supply side of the flexible pipe 23 is connected to the water supply header 2b, and the water discharge side is connected to the water discharge header 2b. The header 2b is housed inside the header cover 2c.

By providing the lock mechanism on the header 2b, it is possible to stop the water supply to the flexible pipe 23 of the predetermined tubular structure 2a, and it is possible to adjust the cooling. Further, an air bleeding valve 2d with a check valve is attached to the header 2b, and the air bleeding valve 2d effectively exhausts the air accumulated in the flexible pipe 23 and the cooling water pipe 4a to the outside of the pipe. The check valve prevents air from flowing into the flexible pipe 23 and the cooling water pipe 4a.

Here, the position of the header 2b is most preferably the uppermost portion of the upright pillar 2. This is because it is easy to bleed air, it is easy to control each circuit of the flexible pipe 23 through which brine flows, and maintenance such as operation switching in summer and winter is easy.

The heat pump type chiller, which is the heat source machine 4, cools the water by applying the pressure adjustment by the pressurizer to the natural refrigerant such as CO2 refrigerant to cool the natural refrigerant, and the heat can be used to cool the water. , Cooling water (temperature of about 7 to 10 ° C.) can be generated more efficiently, and CO2 emissions can be suppressed.

A circulation pump (not shown) is arranged inside the heat pump type cooler. This circulation pump is a pump for circulating the cooling water in the cooling water pipe 4a, and when the circulation pump is driven, the hot water circulated and returned from the upright pillar 2 side is cooled. Further, the cooling water is sent to the header 2b provided on the upper surface of the upright pillar 2, and the cooling water is circulated to each flexible pipe 23 branched via the header 2b.

A cylindrical connecting member 2e is connected to the lower end side of the upright pillar 2 in order to connect to the bench portion 3 shown in FIG. 2 (a). With this configuration, the upright pillar 2 is in a form of standing upright from the bench portion 3 when the cool bench system 1 is used.

As shown in FIG. 4, the bench portion 3 is connected to a backrest surface 31 formed along the outer peripheral shape of the upright pillar 2 and a seat surface portion 32 extending horizontally from the lower end side of the backrest surface 31. It includes an upright pillar support portion 33 that fits with the member 2e, and a base 34 that supports the seat surface portion 32 from below. The backrest surface 31 and the seat surface portion 32 are made of a metal (iron or aluminum) having high thermal conductivity. With this configuration, it is possible to easily exchange heat between the cold air of the backrest surface 31 and the seat surface portion 32 and the body temperature of the user by a heat transfer method.

The seat surface portion 32 has a water storage space 32a for storing the condensed water generated on the surface of the flexible pipe 23 and falling down along the water absorbing sheet 22 in the internal space thereof. In the first embodiment, the internal space of the backrest surface 31 and the water storage space of the seat surface portion 32 are continuous. With this configuration, the cold dew condensation water staying in the water storage space 32a under the seat surface is a pool of cold air, and the surfaces of the seat surface portion 32 and the backrest surface 31 are cooled by the heat conduction of the metal.

Here, the flow of condensed water formed on the surface of the flexible pipe 23 will be described with reference to FIG. When cooling water cooled by a heat source machine 4 (heat pump, etc.) (antifreeze liquid or ground water that does not require a heat source machine can be sent) is sent into the flexible tube 23 that is wound around the outer circumference of the upright pillar 2. By exchanging heat with summer air having a high temperature and humidity, the air is cooled on the surface of the flexible tube 23 that has been cooled, and dew condensation water is formed on the surface of the flexible tube 23.

Here, the distance between adjacent flexible pipes 23 of the flexible pipes 23 arranged in a spiral shape is in the range of 1 mm to 10 mm, more preferably in the range of 2 mm to 5 mm. With this configuration, the dew condensation water formed on the surface of the flexible pipe 23 moves so as to wrap around the inside of the upright pillar 2 as shown by the arrow in FIG. 3, and the dew condensation water comes into contact with the flexible pipe 23. It penetrates into the hydrophilic water-absorbent sheet 22. Further, the condensed water flows down while dripping down along the water absorbing sheet 22, drips down the space behind the backrest surface 31 of the bench portion 3, and stays in the water storage space 32a of the seat surface portion 32.

Here, in the water storage space 32a of the seat surface portion 32, a plurality of PCM containers 32b filled with a latent heat storage material (PCM) composition are arranged. The PCM container 32b has, for example, a donut shape. With this configuration, it is possible to appropriately prevent the seat surface portion 32 and the backrest surface 31 from being overcooled and the dew condensation water adhering to the surface to wet the clothes of the user.

Explaining the latent heat storage material, this latent heat storage material is a substance that utilizes the release / absorption of heat accompanying the phase change of the substance, and is a solid or liquid that faces the melting point / freezing point (phase transition temperature). The latent heat storage material maintains a nearly constant temperature when changing to a state. Further, the latent heat storage material has a characteristic that it can retain a heat storage amount many times larger than that of water or concrete at room temperature. In particular, in the first embodiment, by using a low-temperature heat storage material which is a heat storage material whose phase changes mainly in the range of 25 to 30 ° C., the heat storage material exchanges heat with the dew condensation water, and the dew condensation water becomes cold. It is possible to prevent the water from passing too much, keep the water temperature at 25 to 30 ° C., prevent the seat surface portion 32 and the backrest surface 31 from condensing and getting wet, and give the user a feeling of coolness.

Further, each latent heat storage material has a unique phase change temperature, and the phase change temperature can be adjusted by blending a melting point adjusting agent of the latent heat storage material so as to match the target temperature in the manufacturing process. The latent heat storage material composition used in the cool bench system 1 according to the first embodiment has, for example, sodium sulfate 10-hydrate, calcium chloride 6-hydrate, and carbon dioxide as main raw materials (actually undergoing phase change to absorb and dissipate heat). Inorganic hydrates such as sodium monohydrate, disodium hydrogen phosphate 10 hydroxide, sodium thiosulfate 5 hydroxide, sodium acetate trihydrate, and organic materials such as paraffin wax and polyethylene glycol can be used. .. Examples of the melting point adjusting material (material for adjusting the phase change of the main raw material at a target temperature) include water, urea, ammonium chloride, ammonium sulfate, ammonium bromide, sodium chloride, potassium chloride, and sodium bromide. One type or a mixture of two or more types of the above can be used. Further, examples of the supercooling preventive material (material for reliably precipitating crystals at a temperature near the freezing point) include sodium tetraborate, sodium pyrophosphate, disodium phosphate, lithium fluoride, barium chloride, and strontium chloride. One or a mixture of two or more of the above can be used. Further, as a phase separation preventing material (a material for preventing phase separation due to a difference in specific gravity), for example, one or more of sodium polyacrylate, polyacrylamide, carboxymethyl cellulose, attapulsite, sepiolite and the like are mixed. Can be used.

As shown in FIG. 5, the base 34 of the bench portion 3 also includes a water stop plate 35 erected in the vertical direction, a circulation pump connection port 36, a support rod 37, a flexible pipe connection port 38, and an overflow drain port 39. Be prepared. Cooling water can be flowed from the flexible pipe connection port 38 to the flexible pipe 32c arranged in the water storage space 32a to cool the condensed water stored in the water storage space 32a.

The base 34 of the bench portion 3 has an opening surface on one surface thereof, and the cool bench system 1 is a blower for sending outside air from the opening surface into the internal space of the upright pillar 2 as shown in FIG. 5 (b). 5 is provided. Further, the inner cylinder 21 and the outer cylinder 24 have a plurality of through holes 21a and 24a on the surface thereof for passing the air blown from the blower 5 to the outside. With this configuration, at the same time as the operation of the heat source machine 4, the blower 5 installed in the base 34 of the bench portion 3 operates, takes in outside air from the opening of the bench portion 3, and heads toward the internal space of the upright pillar 2. Is blown. Then, the blown air is blown out from a large number of through holes 21a and 24a on the surface of the upright pillar 2, and at that time, it passes through the water-absorbent sheet 22 which is wet with condensed water and is cooled. It is blown out from the gap of the flexible tube 23. Finally, the blown air comes into contact with the water absorbing sheet 22 and the flexible pipe 23 to be cooled, and becomes cold air and is blown out to the outside. A dust filter 5a shown in FIG. 5B is provided at the intake port of the blower 5 to reduce dust from entering the inside of the upright pillar 2 as much as possible.

Here, as shown in FIG. 1, the cool bench system 1 may include a drain pipe 6 for draining the condensed water stored in the water storage space 32a of the seat surface portion 32 to the ground side. With this configuration, the dew condensation water staying in the water storage space 32a overflows when it reaches a certain amount, and the dew condensation water is drained from the drain pipe 6. For example, the drained drain water is impregnated in the water retention block 8 laid at the feet of the bench user. As a result, the water-retaining block at the feet is always wet and the surface temperature is lowered, which has the further effect of lowering the air temperature at the feet and absorbing the infrared radiant heat of the human body.

The cool bench system 1 may further include a circulation pump 7 for circulating the condensed water stored in the water storage space 32a of the seat surface portion 32. The piping from the power-saving circulation pump 7 is connected to, for example, a sprinkler pipe 2f arranged on the upper surface of the upright pillar 2, and drops from the sprinkler pipe 2f from the upper end of the water-absorbent sheet 22 of the upright pillar 2, and the circulation pump 7 It circulates in. With this structure, the water-absorbent sheet 22 can be in a swollen state even when the dew condensation water is not sufficient.

Next, the cooling function (heat transfer) of the cool bench system 1 will be described with reference to FIG. First, when the user sits down, the heat transfer (B) is transferred from the contact surfaces of the buttocks (seat surface 32) and the back (backrest 31) to provide a cool feeling. .. Further, from the upright pillar 2 installed upright in the central portion of the bench portion 3, the cooled ambient air comes down from above the user's head by the downdraft (E) like a waterfall, and from the user. It has a radiant cooling function that absorbs the infrared radiant heat (C). Further, it also has a convection type cooling function in which cold air (D) is blown outward from the upright pillar 2 by the function of the blower 5.

Next, a usage example of the cool bench system 1 according to the first embodiment will be described with reference to FIGS. 6 and 7. In FIG. 6, in addition to the cool bench system 1, a roof 9 coated with a special coating material is provided, and a water-retaining block 8 is paved to provide a gazebo-like cool spot. When the cool bench system 1 is installed and used in this way, the increase in the road surface temperature is suppressed by blocking the sunlight, the infrared radiation from the road surface is reduced, and the direct sunlight received by the user is blocked. Therefore, it has the further effect of relieving the heat felt by the user.

FIG. 7 is an image of use in which a plurality of cool spots shown in FIG. 6 are arranged in a park, a plaza, or the like. A special coating method is applied to the roof 9, and strip-shaped (or grid-shaped, shutter-shaped, etc.) upright wall surfaces 9a are provided on the east, west, and south sides to block not only the roof 9 but also the sunlight that enters the cool spot. .. Then, the outer surface of the wall surface 9a is similarly subjected to a special coating method. If the wall is closed, the lightweight temporary body may be blown away by the wind, and if the opening is large, the cold air will be washed away by the natural wind. Therefore, in FIG. 7, the wall surfaces 9a having openings are staggered upright, which produces a wind reduction effect that softens the momentum even in strong winds.

As described above, the cool bench system 1 according to the first embodiment is connected to an upright pillar 2 having a substantially cylindrical shape with a closed upper surface and standing upright, and a user connected to the lower end side of the upright pillar 2. A bench portion 3 for sitting is provided. A cylindrical upright pillar 2 made of metal (aluminum or the like) having good thermal conductivity, whose upper surface is closed and whose inside is hollow, is provided in the central portion of the bench portion 3. A large number of through holes are formed on the surface of the upright pillar 2, and a water-absorbent sheet 22 (felt, etc.) having water retention and hydrophilicity is wrapped around the upright pillar 2, and further, heat conduction and corrosion resistance are provided on the outer periphery thereof. An excellent flexible tube 23 is spirally wound so as to come into contact with the water-absorbent sheet 22. Due to this structure, the cool bench system 1 is lightweight and portable and can be easily assembled. Further, by using a circulation type heat pump for the heat source machine 4, the running cost at the time of cooling in the outdoor space can be suppressed low.

In addition, the user of the cool bench system 1 can rest while getting an unprecedented feeling of coolness by the cooling functions (1) to (3) below. That is, (1) the ambient air is cooled by passing cooling water through the flexible pipe 23 spirally wound around the upright pillar 2, and the cold air naturally drops above the user's head by a downdraft like a waterfall. It exchanges heat with the human body with cold air. (2) The cold air generated by the dew condensation water generated around the flexible tube 23 cools the surfaces of the seat surface portion 32 and the backrest surface 31 and deprives the body temperature by heat exchange by contact. (3) When the surface temperature of the upright pillar 2 is lowered, the infrared radiant heat from the surrounding object (human body) is absorbed and the heat of the object is taken away.

Further, by arranging the PCM container 32b in the water storage space 32a of the seat surface portion 32, the space temperature inside the water storage space 32a and the backrest surface 31 is kept constant for a long time (to prevent it from being overcooled by cold condensed water). be able to. As a result, it is possible to appropriately prevent the seat surface portion 32 and the backrest surface 31 from being overcooled and the dew condensation water adhering to the surfaces to wet the clothes of the user.

(Modification example 1)
A modification 1 of the first embodiment will be described. In the first modification, in addition to the cool bench system 1 according to the first embodiment, the surfaces of the seat surface portion 32 and the backrest surface 31 are specially coated with heat insulating properties and heat insulating properties for suppressing the generation of condensed water. The agent is applied. This special coating paint is, for example, a ceramic-blended heat-shielding paint, and for example, a hollow bead type, a shirasu balloon type, a true sphere fine ceramic type, or the like is used. With this configuration, in the present modification 1, in addition to the effect in the first embodiment, the special coating material applied to the seat surface portion 32 and the backrest surface 31 between the ambient temperature and the hollow layer temperature under the seat surface. A heat insulating layer is provided, and a vacuum layer prevents heat conduction due to convection and radiation. As a result, when the user is not seated, a heat insulating layer is formed between the seat surface portion 32 and the backrest surface 31 and dew condensation is unlikely to occur. The heat transfer is performed and the user can get a feeling of coolness.

(Modification 2)
A modification 2 of the first embodiment will be described with reference to FIG. Green power is used as a power supply method for the cool bench system 1 according to the second modification. For example, by using a power generation vehicle S equipped with a power generation system capable of converting waste oil and fat into energy, a solar power generation 81 or a wind power generation 82, the cool bench system 1 can be used even in a place where there is no electric wire and power supply is difficult. it can. Unlike the solar power generation 81 and the wind power generation 82, which are affected by time and weather, the power generation vehicle S can secure a stable power source. As an operation method, the storage battery 83 is charged by the power generation vehicle S, power is supplied to the heat source machine 4, the blower 5, and the circulation pump 7, and the cool bench system 1 is operated. Further, during the daytime, the storage battery 83 can be charged from the solar power generation 81 or the wind power generation 82.

(Embodiment 2)
Hereinafter, a second embodiment of the cool bench system according to the present invention will be described with reference to FIG. The same components as those of the cool bench system 1 according to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The cool bench system 1 according to the second embodiment includes a foldable seat surface portion 40 rotatably connected to the lower end side of the backrest surface 31 on the upper side. It is known that it is very effective to cool the palms, soles, and cheeks as one of the cooling methods for humans. As shown in FIG. 9, by folding the foldable seat surface portion 40 upward, the user can touch and cool the cooled upright pillar 2 before sitting as a bench.

Further, the bench portion 3 of the cool bench system 1 according to the second embodiment is a water storage section for storing the condensed water formed on the surface of the flexible pipe 23 and dripping downward along the water absorbing sheet 22. Has 41. Further, a PCM plate body 42 is arranged adjacently in a plate shape under the seat surface of the foldable seat surface portion 40. With this configuration, when not in use, the cold backrest surface 31 cools the PCM plate 42 without dew condensation, and when the user sits down, the temperature range is appropriate (a range of about 25 to 30 ° C.). It has the effect of obtaining a cool feeling.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made without changing the gist of the invention. For example, in the cool bench system according to the above embodiment, the function as an outdoor cooling system has been described, but it can also be used as an outdoor heating system by using a heat pump type water heater as a heat source machine.

1 Cool bench system 2 Upright pillar 2a Cylindrical structure 2b Header 2c Header cover 2d Air vent valve 2e Connection member 2f Sprinkler pipe 3 Bench part 4 Heat source machine 5 Blower 5a Dust filter 6 Drain pipe 7 Circulation pump 21 Inner tubular body 21a , 24a Through hole 21b, 21c Flexible pipe hole 22 Water absorption sheet 23 Flexible pipe (water pipe)
24 Outer tubular body 25 Connecting angle 26 Bind wire 31 Backrest surface 32 Seat surface 32a Water storage space 32b PCM container 33 Upright pillar support 34 Base 35 Water stop plate 36 Circulation pump connection port 37 Support rod 40 Folding seat 41 Water storage section 42 PCM board

In this cool bench system, the bench portion further has a water storage section for storing condensed water formed on the surface of the water pipe and dripping downward along the water absorbing sheet. A PCM plate body provided in a plate shape adjacent to the seat surface is arranged under the seat surface of the surface portion, and the seat surface portion is rotatably connected to the lower end side of the backrest surface. It is preferably a foldable seating surface.

Claims (8)

A cool bench system that creates a cool space in a certain space.
An upright pillar with a substantially cylindrical shape with a closed top surface,
A bench portion connected to the lower end side of the upright pillar for the user to sit on is provided.
The upright pillars are a cylindrical inner cylinder, a water-absorbent sheet arranged so as to cover the surface of the inner cylinder, and a water supply pipe spirally arranged along the surface of the water-absorbent sheet to allow cooling water to flow. , And a cool bench system comprising a cylindrical outer cylinder located outside the water supply pipe. The cool bench system further
Equipped with a heat source machine to generate cooling water
On the upper surface of the upright pillar, a header is arranged which is connected to the heat source machine via a cooling water pipe and for supplying the cooling water generated by the heat source machine to the water pipe by a header method. The cool bench system according to claim 1. The cool bench system according to claim 1 or 2, wherein a connecting member is connected to the lower end side of the upright pillar in order to connect to the bench portion. The bench portion includes a backrest surface formed along the outer peripheral shape of the upright pillar, a seat surface portion extending horizontally from the lower end side of the backrest surface, and an upright pillar support that fits with the connecting member. A portion and a base for supporting the seat surface portion from below are provided.
The cool bench system according to claim 3, wherein the backrest surface and the seat surface portion are formed of a metal having high thermal conductivity. The seating surface portion has a water storage space in its internal space for storing condensed water formed on the surface of the water pipe and dripping downward along the water absorbing sheet.
The cool bench system according to claim 4, wherein a plurality of PCM containers filled with a latent heat storage material (PCM) composition are arranged in the water storage space. The bench portion further has a water storage section for storing the condensed water formed on the surface of the water pipe and dripping downward along the water absorbing sheet.
Below the seat surface of the seat surface portion, a plate body for PCM provided adjacently in a plate shape is arranged.
The cool bench system according to claim 4, wherein the seat surface portion is a foldable seat surface portion rotatably connected to the lower end side of the backrest surface. The base has an opening surface on one surface thereof, and has an opening surface.
The cool bench system further
A blower for blowing outside air from the opening surface into the internal space of the upright pillar is provided.
Any one of claims 4 to 6, wherein the inner cylinder and the outer cylinder have a plurality of through holes on the surface thereof for passing air blown from the blower to the outside. The cool bench system described in. The cool bench system according to any one of claims 1 to 7, wherein the distance between adjacent water pipes of the water pipes arranged in a spiral shape is in the range of 1 mm to 10 mm.