JP4146732B2 - Snow and ice heat source supply system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a snow and ice heat source supply system that can efficiently and inexpensively use the cold heat of snow.
[0002]
[Prior art]
In recent years, a cold energy utilization system has been proposed for effectively utilizing environmentally friendly unused energy using snow. In urban areas, the difference in seasonal demand, which significantly increases the amount of electricity used for building air conditioning in the summer, tends to become larger, and office buildings in cold districts also use a considerable amount of cold in the summer. . Therefore, there is a cold heat storage method that uses snow to level the energy throughout the year by storing snow efficiently in the winter, storing it until the summer, and allocating this unused energy to the cold demand in the summer. Is provided.
[0003]
Prior art document information related to the invention of this application includes the following.
[Patent Document 1]
JP 2000-230793 A
[Patent Document 2]
JP-A-7-305873
[0004]
The snow-based cold heat storage method and apparatus disclosed in Patent Document 1 store a snow in a heat storage tank provided in an underground space in winter and store it until summer, and in the summer, a solid substance mixed into snow The feature is characterized in that the snowmelt water from which the water is removed with a filter is sent to a heat exchanger on the load side to take out cold heat. Also, a heat storage tank that is installed in the underground space and stores snow in the winter and stores it until the summer, a snowmelt water extraction pipe that is provided in the heat storage tank and communicates with the heat exchanger on the load side, and this snowmelt water extraction pipe It is characterized by having a filter provided between the heat storage tank and a cold water return pipe connected to the load-side heat exchanger.
[0005]
According to this snow-use cold heat storage method and its device, snow is efficiently stored in the winter, stored until summer, and this unused energy is used for summer cold demand. It is said that leveling can be achieved and increase in energy costs can be suppressed.
[0006]
In addition, the heat storage / heat exchange system using snow utilization and natural icing disclosed in Patent Document 2 described above stores snow that has fallen in winter in a container of a certain standard and has a small amount of heat transfer with the outside. Store in room and store until summer. In summer, the necessary amount of snow is taken out according to the demand for cooling and refrigeration and introduced into the heat storage tank. Heat exchange in the heat storage tank blows outside air directly to the floating snow, lowers the temperature, passes a pipe directly under the road surface exposed to direct sunlight, and distributes a mixed fluid of snow and water inside it , Using a conventional chiller unit. In order to transport snow from one snow storage chamber to a plurality of heat storage tanks, the melting state of snow in each heat storage tank is monitored by a sensor, and the transport amount is changed based on the result.
[0007]
According to this heat storage / heat exchange system, effects such as peak demand reduction, energy saving, and cooling cost reduction are obtained.
[0008]
[Problems to be solved by the invention]
However, the snow-based cold heat storage method and apparatus disclosed in Patent Document 1 need to be constructed by attaching a heat storage tank that stores a large amount of snow until the summer, and is disclosed in Patent Document 2 described above. Even in the heat storage and heat exchange system that uses snow and natural icing, a snow storage room must be installed in the heat storage tank. For this reason, a huge heat storage tank or snow storage room (snow ice storage) with a heat insulation structure must be built for the cold heat utilization facility, and it is difficult to secure it, and the burden of building a snow ice storage for each user is difficult. There was a disadvantage that the initial cost of the cold energy utilization system increased significantly. And since the cold energy utilization facility and the snow and ice storage are integrated, it has been difficult to respond to urgent cold heat demand and transient cold heat demand such as various events. In addition, there is a limit to the amount of snow that can be stored in the snow ice warehouse, so snow storage may be lost due to changes in the climate and demand, which may be a fatal problem in facilities such as agricultural product storage. For this reason, it is necessary to add a backup system after exhausting the cold heat of the snow ice store, which also increases the initial cost.
The present invention has been made in view of the above circumstances, and it is possible to use cold heat from snow and ice without constructing a large-scale snow ice warehouse, and for urgent cold heat demand and temporary cold heat demand such as various events. In addition, we will provide a snow and ice heat source supply system that can respond quickly and eliminate the need for a backup system, reducing the initial cost of the cold energy utilization system, and realizing efficient and reliable cold energy utilization. For the purpose.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the snow and ice heat source supply system according to claim 1 of the present invention is constructed in the snow storage area, a cold supply container in which the snow in the snow storage area is housed as snow ice and insulated from the outside, and the snow storage area. A storage facility for storing a plurality of the cold heat supply containers, a heat exchange unit to which the cold heat supply containers are connected and heat-exchanging with the snow and ice contained in the cold heat supply containers to extract cold heat, and the heat exchange units from the storage facilities And a transport means for transporting the cold supply container containing snow and ice and collecting the used cold supply container from the heat exchange unit to the storage facility.
[0010]
In this snow and ice heat source supply system, a necessary amount of the cold heat source (that is, snow and ice) can be supplied to the heat exchange unit by the cold heat supply container when necessary according to the demand for cold heat. This makes it possible to use cold heat from snow and ice without constructing a large-scale snow and ice warehouse, so that the burden of individual snow and ice storage construction is not imposed on the user, and the initial cost of the cold energy utilization system is greatly reduced. Become. And it becomes possible to respond promptly to urgent cold / hot demand such as various events. In addition, the required amount of cold energy can always be supplied, and it is not necessary to provide a backup system after exhausting the cold heat of the snow ice store, which also reduces the initial cost. Furthermore, since a storage facility is constructed in the snow yard, a large-scale heat insulation facility for keeping the cold heat source cold becomes unnecessary.
[0011]
The snow and ice heat source supply system according to claim 2 is the snow and ice heat source supply system according to claim 1, wherein the cold heat supply container is provided with a loading floor having a drain outlet, and melted water of snow and ice formed below the loading floor. A melt pit for storage, wherein the melt pit is provided with a melt outlet for taking out the melt water.
[0012]
In this snow and ice heat source supply system, the melt water outlet of the cold heat supply container is connected to the heat exchange unit of the cold heat utilization facility, and the molten water in the melt water pit is supplied to the heat exchange unit. Accordingly, it is possible to gradually draw out the cold heat of the snow ice while keeping the water in the melt pit at a low temperature by the melt water melted from the snow ice. In addition, in the case of the water circulation type, there is an advantage that it is possible to flexibly cope with the temperature and humidity conditions of the heat exchange unit.
[0013]
The snow and ice heat source supply system according to claim 3 is the snow and ice heat source supply system according to claim 2, wherein the cold heat supply container includes a cold air outlet.
[0014]
In this snow and ice heat source supply system, the internal air of the cold heat supply container can be taken out from the cold air outlet, and low-temperature cold air cooled by large latent heat due to melting of snow and ice can be obtained. And since this cold air is in direct contact with the melted snow and ice and is humid, it can be suitably used for storing fresh vegetables that are particularly resistant to freezing and require a low temperature and high humidity environment. In addition, since this cold air is in direct contact with snow and ice, it has useful effects for cooling such as a deodorizing function (particularly ammonia odor), a dust removing function, and a negative ion effect.
[0015]
The snow and ice heat source supply system according to claim 4 is the snow and ice heat source supply system according to claim 1 or 2, wherein the storage facility processes the snow in the snow yard stored in the cold heat supply container into high-quality snow and ice. A snow processing device is provided.
[0016]
In this snow and ice heat source supply system, the snow in a naturally accumulated state is compressed to a predetermined density, for example, by a snow processing device, and a larger amount of snow is stored than in the case of storing snow without compression, and the volume efficiency of the cold heat supply container is reduced. Increased, the cold capacity per cold supply container increases. Further, by adjusting the compression ratio of the snow processing apparatus, the cooling / heating capacity per one cooling / heating supply container can be adjusted.
[0017]
The snow and ice heat source supply system according to claim 5 is the snow and ice heat source supply system according to any one of claims 1 to 4, wherein the cold heat supply container detects the amount of snow and ice in the interior thereof as a snow and ice amount detection signal. Snow ice quantity detection means capable of being sent out, the snow ice quantity detection signal from each of the cold and cold supply containers is input, and the replacement time of each cold and cold supply container is calculated based on the snow and ice quantity detection signal and based on the replacement time It is provided with a function that enables centralized management to formulate a delivery instruction of the cold supply container from the storage facility to the heat exchange unit.
[0018]
In this snow and ice heat source supply system, it is possible to perform centralized management by calculating the replacement time of each cold heat supply container based on the detection signal of the amount of snow and ice from each cold heat supply container and formulating the delivery instruction of the cold heat supply container based on this replacement time By providing the function as described above, it is possible to prevent the cold heat supply container from being exchanged in a state where snow and ice remain, and the state where the cold heat cannot be taken out. In addition, since the amount of snow and ice can be ascertained by means of detecting the amount of snow and ice, there is no need to open and close the door of the cooling / heating supply container for visual confirmation. Can be increased. As a result, the cold supply container can be replaced at an appropriate time, and efficient and highly reliable use of cold heat can be realized.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a snow and ice heat source supply system according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a configuration diagram schematically showing the configuration of a snow and ice heat source supply system according to the present invention, FIG. 2 is an explanatory diagram showing a snow ice carry-in example 1, FIG. 3 is an explanatory diagram showing a snow and ice carry-in example 2, FIG. Is an explanatory diagram of a cold heat supply container having an inclined floor, FIG. 5 is an explanatory diagram when the cold heat supply container is used in the snowmelt water circulation heat exchange system, and FIG. 6 is an explanatory diagram showing a cold heat supply container with a snowmelt water pit integrated structure FIG. 7 is an explanatory diagram showing a cold supply container having a snowmelt water non-separation structure, FIG. 8 is an explanatory view when the cold supply container is used in a cold air circulation system, and FIG. 9 shows a detailed structure of the cold supply container. FIG. 10 is an explanatory diagram showing the groundwater reduction status of snowmelt water, and FIG. 11 is a side view of a cold / heat supply container provided with a photovoltaic power generation panel.
[0020]
As shown in FIG. 1, a snow and ice heat source supply system 1 according to the present embodiment includes a cold heat supply container (for example, cold heat) in which the snow in the snow yard 3 is housed as snow ice and the inside is insulated from the outside through a heat insulating structure. Supply container) 5, a storage facility 7 that is constructed in the snow yard 3 and stores a plurality of cold supply containers 5, and a cold supply container 5 is connected to the snow ice contained in the cold supply container 5 to exchange heat. While transporting the cold energy supply facility 5 containing snow and ice from the storage facility 7 to the cold energy utilization facilities 11A to 11G, and the cold energy utilization facilities 11A, 11B, 11C, 11D, 11E, 11F, and 11G having the heat exchange unit 9 to be taken out , And transporting means 13 for recovering the cold heat supply container 5 used for cold heat from the cold heat utilization facilities 11A to 11G to the storage facility 7.
[0021]
In the present embodiment, the case where the cold energy supply container 5 is used as the cold energy supply container will be described as an example. However, the cold energy supply container is a general container (container), and particularly cargo. It is not limited to large containers used for transportation.
[0022]
Further, in the present embodiment, the snow and ice heat source supply system will be described by taking, as an example, the cold / heat supply container 5 that is thermally insulated from the outside through a heat insulation structure using a heat insulation panel or the like. The heat source supply system may be a method in which a cold heat supply container having an outer heat insulation structure on the cold heat utilization facility side and having no heat insulation structure therein is accommodated. With such a system configuration, the weight of the cold supply container can be reduced, and the transportability can be improved.
[0023]
Furthermore, in the present embodiment, the snow and ice heat source supply system will be described as an example in which the cold heat utilization facilities 11A to 11G include the heat exchange unit 9, but the heat exchange unit 9 is not necessarily included in the cold heat utilization facilities 11A to 11G. It is not necessary to be provided and may be provided separately from the cold energy utilization facilities 11A to 11G.
[0024]
In addition to the method of storing snow in a state where it is packed in the cold energy supply container 5 as used in the present embodiment, the storage of snow is stocked in a large amount in the snow yard 3 and stored in the cold energy supply container 5 every time it is carried out. There is a method of stuffing. According to the latter storage method, the freedom degree of the storage place of the used cold-heat supply container 5 can be raised.
[0025]
The storage facility 7 is preferably provided with a snow processing device that processes the snow in the snow storage 3 accommodated in the cold heat supply container 5 into high-quality snow ice. Here, “high quality snow and ice” refers to snow and ice having high energy (cold heat) density, cold sustainability, and stable cold supply capability.
As a function of the snow processing apparatus for obtaining such high-quality snow ice, there is, for example, a snow compression function. This snow processing device compresses the snow in a naturally accumulated state to a predetermined density, and can store a larger amount of snow than when storing snow without compression. Thereby, the volumetric efficiency of the cold energy supply container 5 is enhanced, and the cold energy capacity per one cold energy supply container is increased. Further, by adjusting the compression ratio of the snow processing device, the cooling / heating capacity per cooling / heating container can be adjusted. As the compression power in this case, not only a mechanical compression device but also human power and gravity can be used.
[0026]
Moreover, as a function of the snow processing apparatus for obtaining high quality snow and ice, the following can be mentioned in addition to the above compression function. In other words, it has a function to add sustainability to snow to enhance sustainability or stability, a function to further cool the snow to increase sustainability, and a process to open a vent hole in the snow for direct cooling type. And the like (for example, deodorizing property, dust removing property, generation of negative ions), a function of adding water to snow to form a sherbet for stable supply, and the like.
[0027]
The snow ice packed in the cold energy supply container 5 in this way is conveyed to the cold energy utilization facilities 11 </ b> A to 11 </ b> G via the conveying means 13. As the transport means 13, a ship such as a truck or the like, a railway vehicle, or the like can be used.
[0028]
The cold supply container 5 packed with snow and ice is stored in the storage facility 7 in the snow yard 3 and is transported by the transport means 13 to the cold heat supply relay base 15 secured in the vicinity of the cold heat utilization facilities 11A to 11G. After that, it may be placed and stored and used as a relay base. At this time, it is desirable that the cold supply relay base 15 effectively uses an idle land such as an underpass as an accommodation space without constructing a new structure in order to suppress the construction cost.
[0029]
The snow and ice heat source supply system 1 can be used for cooling, low-temperature storage, low-temperature aging, use of a low-temperature environment such as low-temperature sterilization / low-temperature treatment, use of low-temperature water, and direct use of snow (entertainment, exhibition). For example, the cold-use facilities 11A to 11G that specifically use these facilities will attract large-scale shopping malls, food / grocery supermarkets, DIY commercial facilities 11A, museums 11B, private factories 11C, communities, and recreation spaces In addition to the facility 11D, agricultural products and marine products, there are a storage facility 11E for dairy products and flowers, a facility 11F that uses low-temperature aging techniques such as liquor, and a culture facility 11G such as sturgeon and rainbow trout. In addition, although illustration is abbreviate | omitted, a common house, the cooling of a public facility, an aquarium, a zoo, etc. can be mentioned.
[0030]
As shown in FIG. 2, as a method of carrying snow and ice to the cold energy utilization facilities 11 </ b> A to 11 </ b> G, the cold heat supply container 5 a newly carried in is replaced with a used cold heat supply container 5 b, and the used cold heat supply container 5 a is used. As shown in FIG. 3, only the snow and ice of the new cold heat supply container 5a that has been carried in is supplied to the used cold heat supply container 5b, and the used cold heat supply container 5a is recovered. Or the like.
[0031]
In the case of the method of supplying only snow and ice as shown in FIG. 3, the snow and ice 17 that has become a block as shown in FIG. 4 is slid by the power of a machine or the like (feed mechanism such as a fluid pressure cylinder or rack and pinion). And supply. Moreover, when employ | adopting such a slide supply system, let the floor part of the cold-heat supply container 5 be a slippery smooth surface. Furthermore, it is also possible to form a sloping floor 19 having a downward slope in the supply direction and open the door 18 so as to slide by the dead weight of the snow and ice 17.
[0032]
In addition, a thermal heater (not shown) that melts only the bottom surface of the snow ice 17 may be disposed on the floor portion of the cold heat supply container 5 in order to make the snow ice 17 easy to slide. In addition, the power supply in this case is good also as obtaining from the solar panel mentioned later attached to the outer wall of the cold-heat supply container 5. FIG. If such a heating heater melting method using a solar panel is adopted, it is possible to make the movement of the snow and ice 17 easier without using another power supply facility.
[0033]
The extraction of the cold heat from the cold heat supply container 5 may be a water circulation type in which snowmelt water is circulated through the heat exchange unit 9 to exchange heat as shown in FIG. In this case, as shown in FIG. 6, the melted water is stored separately from the snow ice 17 and provided with a melt pit 21 at the bottom of the container. As shown in FIG. 23 and the snow and ice 17 can be mixed, and any one of the snowmelt water non-separation structures can be used.
[0034]
Moreover, taking out cold heat can be not only the melted water 23 but also a cold air circulation type in which cold air inside the cold heat supply container 5 is blown to the cold heat utilization facilities 11A to 11G as shown in FIG. In this case, the cold supply container 5 is provided with a cold air outlet 25 and a cold air return port 26. As a result, the internal air of the cold supply container 5 can be taken out from the cold air outlet 25, and low-temperature cold air cooled by the large latent heat due to melting of the snow ice 17 can be obtained. And since this cold air is in direct contact with the melted snow and ice and is humid, it can be suitably used for storing fresh vegetables that are particularly resistant to freezing and require a low temperature and high humidity environment.
[0035]
In addition, since this cold air is in direct contact with snow and ice, it has useful effects for cooling such as a deodorizing function (particularly ammonia odor), a dust removing function, and a negative ion effect. In particular, it has been reported that the deodorizing function can be suitably used for cooling a welfare facility for the elderly.
[0036]
As shown in FIG. 9, the cold heat supply container 5 is more specifically a loading floor 29 having a drainage port 27, and a snow melting water pit 21 that is formed below the loading floor 29 and stores molten water of the snow ice 17. The melt pit 21 is provided with at least a melt outlet 31. Moreover, although the cold-power supply container 5 by this Embodiment is provided with the return water inlet 33 for collect | recovering molten water in addition to the molten water inlet 31, it is used for sprinkling molten water to snow etc. When used and not returned to the molten water pit 21, the return water intake 33 may not be provided. The cold heat supply container 5 is provided with a cold air outlet 25 at the upper part of the side wall.
[0037]
In the cold heat supply container 5, the molten water outlet 31 and the return water inlet 33 are connected to the heat exchange unit 9 of the cold heat utilization facilities 11 </ b> A to 11 </ b> G, and the molten water 23 in the molten water pit 21 is replaced with the heat exchange unit 9. Circulated to That is, it becomes a water circulation type cold heat utilization system. Thereby, it is possible to gradually draw out the cold heat of the snow ice 17 while keeping the melt water 23 in the melt pit 21 at a low temperature by the melt water 23 melted from the snow ice 17. In addition, in the case of the water circulation type, there is an advantage that it is possible to flexibly cope with the temperature / humidity conditions of the cold energy utilization facilities 11A to 11G.
[0038]
In addition, it is conceivable to sprinkle the snow as a measure to improve the water circulation type immediate effect. That is, the efficiency of extracting cold heat from snow can be increased by using water spray as a heat conduction medium. The water spray in this case is preferably returned water from the heat exchange unit 9 or water of another system such as tap water (having a higher temperature than the returned water).
[0039]
Further, the cold heat supply container 5 is provided with a cold air outlet 25. Therefore, the method for drawing out heat from the cold heat supply container 5 can be used both as a water circulation type and a cold air circulation type.
[0040]
In addition, after taking out cold heat, the snow and ice 17 changes in state to the melted water 23. As shown in FIG. 10, for example, the melted water 23 penetrates into the ground and is reduced to the groundwater to prevent the groundwater from being depleted. can do.
[0041]
The snow and ice heat source supply system 1 includes a snow and ice amount detection means 41 (see FIG. 9) in which the cold and heat supply container 5 can detect the amount of snow and ice in the interior and send it as a snow and ice amount detection signal. In addition, the snow and ice heat source supply system 1 has a function that enables centralized management. The function enabling this centralized management can be realized by the centralized management center 43 (see FIG. 1) having a computer storing a delivery instruction formulation program and the like. That is, the central management center 43 grasps the amount of snow and ice from each cold / heat supply container 5 based on the input of the snow and ice amount detection signal from the snow and ice amount detection means 41, and based on this snow and ice amount detection signal, In addition to calculating the replacement time, the storage device 7 functions to formulate a delivery instruction of the cold heat supply container 5 from the storage facility 7 to the cold heat utilization facilities 11A to 11G based on the replacement time.
[0042]
Examples of the snow / ice amount detecting means 41 at this time include a melting water measuring means, a temperature measuring means, a pressure receiving measuring means, a container total weight measuring means, and a snow / ice amount detecting means using a laser. The melt water measurement means uses the fact that the snow and ice 17 eventually melts into water. That is, the remaining amount of snow can be calculated by measuring the amount of snowmelt water. Then, the container replacement time is predicted from the amount of snow change. For example, a flow meter that can be digitally measured is installed in a pipe connected to the heat exchange unit 9, and the flow rate is measured and the total amount of molten water is calculated.
[0043]
Further, in the method using the temperature measuring means, the replacement time is predicted from the temperature change in the cold energy supply container 5 based on the past measurement results. If the necessary cold energy cannot be taken out even if snow remains, the cold heat supply container 5 must be replaced. Therefore, the method using the temperature measuring means is particularly effective under such circumstances. In this case, the temperature sensor is relatively inexpensive. The temperature measuring means, for example, installs temperature sensors that can be measured digitally at several locations on the inner surface side of the container and one location on the outer side, and measures the temperature. In addition, the number of temperature sensors and an installation location are suitably set by the magnitude | size, shape, etc. of the cold-heat supply container 5, and are not limited to an above-described number and location.
[0044]
In the method using the pressure receiving measuring means, the pressure receiving pressure on the inner bottom surface of the cold energy supply container 5 is measured, and the replacement time is predicted from the amount of remaining snow. For example, a sheet-like pressure sensor capable of calculating pressure from electric conductivity is installed on the inner bottom surface of the cold heat supply container 5 and measured.
[0045]
In the method using the total container weight measuring means, for example, a truck scale is permanently installed at the installation location of the cold heat supply container 5, and the remaining snow amount is calculated by measuring the total container weight.
[0046]
Further, the snow / ice amount detection signal from the snow / ice amount detecting means 41 is periodically transmitted to the central management center 43 by a wireless communication system (PHS use system or the like). Thereby, wiring construction becomes unnecessary and reception of the snow / ice amount detection signal from the cold / heat supply container 5 that is moving by the transport means 13 can be enabled.
[0047]
The central management center 43 aggregates the snow / ice amount detection signals transmitted from the individual cold / heat supply containers 5 and analyzes them with reference to weather prediction, facility use prediction, past measurement results, etc., and predicts the container replacement time. Then, a container delivery plan is prepared from each container replacement time, and a delivery instruction is formulated. This formulation includes one that outputs a delivery instruction mark or one that is sent as a delivery instruction signal to a business establishment that performs delivery work. The delivery company receiving the delivery work delivers a predetermined number of the cold energy supply containers 5 to each of the cold energy utilization facilities 11A to 11G at a predetermined time according to this container distribution plan.
[0048]
Therefore, according to the snow and ice heat source supply system 1, a necessary amount of the cold heat source (ie, snow and ice) can be supplied to the cold heat utilization facilities 11A to 11G by the cold heat supply container 5 when necessary according to the cold demand. Become. As a result, it becomes possible to use the cold heat from snow and ice without constructing a large-scale snow ice storage in the cold heat utilization facilities 11A to 11G, and the burden of individual snow ice storage construction on the user does not occur, and the initial cost of the cold heat utilization system Is greatly reduced. And it becomes possible to respond promptly to urgent cold / hot demand such as various events. In addition, the required amount of cold energy can always be supplied, and it is not necessary to provide a backup system after exhausting the cold heat of the snow ice store, which also reduces the initial cost. Furthermore, since the storage facility 7 is constructed in the snow yard, a large-scale heat insulation facility for keeping the cold heat source cold is also unnecessary.
[0049]
Further, the central management center 43 that calculates the replacement time of each cold / heat supply container 5 based on the snow / ice amount detection signal from each cold / heat supply container 5 and formulates a delivery instruction for the cold supply container 5 based on the replacement time is provided. As a result, it is possible to prevent the cold heat supply container 5 from being replaced in a state where snow and ice remain, and the state in which cold heat cannot be taken out. Further, since the amount of snow and ice can be grasped by the snow and ice amount detecting means 41, it is not necessary to open and close the door 18 of the cold / hot supply container 5 for visual confirmation, and once the snow and ice 17 is accommodated, it is not necessary to open the door 18 and The cooling performance of the supply container 5 can be enhanced. Thereby, the cold supply container 5 can be replaced at an appropriate time, and efficient and highly reliable use of cold heat can be realized.
[0050]
As shown in FIG. 11, the cold heat supply container 5 may be provided with a solar panel 51 on an upper surface or an outer wall surface. Thereby, the heat which approachs the inside of the cold heat supply container 5 can be reduced. That is, the solar panel 51 has an action as a heat insulating plate. Moreover, the solar panel 51 may be used during a non-snowfall period. The electric power obtained in this manner is stored directly or directly in a storage battery or the like, for example, a cold air blower fan of the cold supply container 5, a thermal heater for sliding, lighting, a wireless communication system (PHS), or the like. It can be used as a power source for use systems and the like.
[0051]
Moreover, the solar panel 51 is attached vertically so as to be parallel to the outer wall surface of the cold heat supply container 5 or the outer wall surface (not shown) of the heat insulation structure covering the cold heat supply container 5, so that it can be used during snow accumulation. Snow accumulation on the light receiving surface can be prevented, and both direct light of sunlight and reflected light reflected from the snow accumulation surface can be received, thereby improving power generation efficiency.
[0052]
【The invention's effect】
As described above in detail, according to the snow and ice heat source supply system according to claim 1 of the present invention, a cold heat supply container that houses the snow in the snow yard as snow ice, and a plurality of cold heat supplies constructed in the snow yard. Since it has a storage facility for storing containers, a heat exchange unit that extracts the cold energy of the cold energy supply container, and a conveying means for conveying the cold energy supply container between the storage facility and the heat exchange unit, according to the demand for cold energy When needed, the required amount of cold source (ie, snow and ice) can be supplied to the heat exchange unit by the cold supply container. As a result, the heat exchange unit can use the heat generated by snow and ice without constructing a large-scale snow and ice warehouse, so that the burden on individual snow and ice storage construction is not imposed on the user, and the initial cost of the cold energy utilization system is greatly increased. Can be reduced. And it can respond quickly to urgent cold / hot demands such as various events and transient cold / hot demands. In addition, since the required amount of cold energy can always be supplied, there is no need to provide a backup system after the cold ice in the snow ice warehouse has been used up, thereby reducing the initial cost. Furthermore, since the storage facility is constructed in the snow yard, it is possible to eliminate the need for a large-scale heat insulation facility for keeping the cold heat source cold.
[0053]
According to the snow and ice heat source supply system according to claim 2, the cold heat supply container includes a loading floor having a drainage port and a melt pit formed below the loading floor and storing melted water of snow and ice. Since the water pit is provided with a melt outlet, the melt outlet of the cold supply container can be connected to the heat exchange unit to supply the melt water in the melt pit to the heat exchange unit. While keeping the water in the melt pit at a low temperature by the melted water that melts from the snow and ice, the cold heat of the snow and ice can be gradually drawn out. In addition, in the case of the water circulation type, there is an advantage that it is possible to flexibly cope with the temperature and humidity conditions of the heat exchange unit.
[0054]
According to the snow and ice heat source supply system of the third aspect, since the cold heat supply container includes the cold air outlet, the internal air is taken out from the cold air outlet and is cooled by the large latent heat obtained by melting the snow and ice. A low temperature cold can be obtained. And since this cold air is in direct contact with the melted snow and ice and is humid, it can be suitably used for storing fresh vegetables that are particularly resistant to freezing and require a low temperature and high humidity environment. In addition, since this cold air is in direct contact with snow and ice, it has useful effects for cooling such as a deodorizing function (particularly ammonia odor), a dust removing function, and a negative ion effect.
[0055]
According to the snow and ice heat source supply system of claim 4, the storage facility includes a snow processing device that processes the snow in the snow storage area accommodated in the cold heat supply container into high-quality snow and ice. Compared to storing snow as it is, it is possible to increase the volumetric efficiency by compressing to a predetermined density, and to increase the cooling capacity per cooling supply container.
[0056]
According to the snow and ice heat source supply system of claim 5, the cold / heat supply container includes snow / ice amount detection means, and the snow / ice amount detection signal from each of the cold / heat supply containers is inputted, and each of the cold / heat supply containers is based on the snow / ice amount detection signal. It has a function that enables centralized management to calculate the delivery instruction of the cold supply container from the storage facility to the cold use facility based on this exchange time, so that snow and ice remain It is possible to prevent the exchange of cold heat supply containers and the situation where snow and ice are lost and cold heat cannot be taken out, and it is possible to replace the cold heat supply containers at an appropriate time, realizing efficient and reliable use of cold heat it can.
[Brief description of the drawings]
FIG. 1 is a configuration diagram schematically showing the configuration of a snow and ice heat source supply system according to the present invention.
FIG. 2 is an explanatory diagram showing a snow ice delivery example 1;
FIG. 3 is an explanatory diagram illustrating a second example of carrying snow and ice.
FIG. 4 is an explanatory diagram of a cold heat supply container having an inclined floor.
FIG. 5 is an explanatory diagram when a cold supply container is used in the snowmelt water circulation heat exchange method.
FIG. 6 is an explanatory view showing a cold supply container having a snowmelt water pit integrated structure.
FIG. 7 is an explanatory view showing a cold supply container having a snowmelt water non-separation structure.
FIG. 8 is an explanatory diagram when a cold supply container is used in the cold air circulation method.
FIG. 9 is a perspective view showing a detailed structure of a cold energy supply container.
FIG. 10 is an explanatory diagram showing the groundwater reduction status of snowmelt water.
FIG. 11 is a side view of a cold supply container provided with a photovoltaic power generation panel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Snow and ice heat source supply system, 3 ... Snow deposit field, 5 ... Cold-heat supply container (cold-heat supply container), 7 ... Storage equipment, 9 ... Heat exchange unit, 13 ... Conveyance means, 17 ... Snow ice, 21 ... Melt water pit, DESCRIPTION OF SYMBOLS 23 ... Molten water, 25 ... Cold air outlet, 27 ... Drain outlet, 29 ... Loading floor, 31 Molten water outlet, 41 ... Snow ice amount detection means, 43 ... Central control center

Claims (5)

A cold supply container in which the snow in the snow yard is housed as snow ice and insulated from the outside;
A storage facility that is constructed in the snow yard and stores a plurality of the cold supply containers;
A heat exchange unit to which the cold supply container is connected and heat exchange with snow and ice contained in the cold supply container to take out the cold heat;
Transporting the cold supply container containing snow and ice from the storage facility to the heat exchange unit, and transporting means for collecting the used cold supply container from the heat exchange unit to the storage facility. Features a snow and ice heat source supply system. The snow and ice heat source supply system according to claim 1,
The cold heat supply container includes a loading floor having a drain outlet, and a melt pit that is formed below the loading floor and stores melted water of snow and ice,
A snow and ice heat source supply system, wherein the melt pit is provided with a melt outlet for taking out the melt. The snow and ice heat source supply system according to claim 2,
The snow and ice heat source supply system, wherein the cold heat supply container includes a cold air outlet. In the snow and ice heat source supply system according to claim 1 or 2,
The snow and ice heat source supply system, wherein the storage facility includes a snow processing device that processes the snow in the snow yard stored in the cold heat supply container into high-quality snow and ice. In the snow and ice heat source supply system according to any one of claims 1 to 4,
The cold heat supply container includes a snow ice amount detection means capable of detecting the amount of snow and ice inside and sending it as a snow ice amount detection signal,
A snow / ice amount detection signal from each of the cold / heat supply containers is input, and a replacement time of each of the cold / heat supply containers is calculated based on the snow / ice amount detection signal, and the cold heat from the storage facility to the heat exchange unit is calculated based on the replacement time. A snow and ice heat source supply system having a function capable of centralized management for formulating delivery instructions for supply containers.

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