JP2011158236A - Method of constructing cool-temperature warehouse using ice layer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of constructing a cool-temperature warehouse, which can be operated inexpensively. <P>SOLUTION: This method includes: a process of forming a space for producing an ice layer by surrounding the circumference by a dam and ground and installing a protective material on the surface of the ground; a process of forming an ice tower by providing a cavity within the dam, forming a vertical ventilation port communicating outside with the cavity in the dam and providing a large number of squares within the cavity extended vertically; a process of assembling structure members and a framework for a carrying-in passage for the cool-temperature warehouse in the space; a process of creating the ice layer in the space; and a process of forming a necessary space for the cool-temperature warehouse and carrying-in passage by cutting ice of the ice layer. In the ice creating process, at an early stage of winter, work to form a thin ice layer by filling water is repeatedly performed so as to form the ice layer with intended thickness and water is filled in the squares in the ice tower so as to start the operation of the ice tower. At a terminal stage of winter, curing water is filled on the surface of the ice layer to suppress melting of the ice layer. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method for constructing a cold / hot warehouse utilizing an ice layer.

  In recent years, the use of snow and ice thermal energy has attracted attention from the viewpoint of preventing global warming. Under these circumstances, the enforcement order of the so-called New Energy Law (Special Measures Law on Promotion of New Energy Utilization) was revised in 2002 to actively introduce snow and ice thermal energy.

  Conventionally, the use of snow and ice thermal energy has been achieved by storing snow in the winter and ice transported by cutting and transporting ice on the lake as a cold heat source and storing it in an insulated warehouse to store agricultural products in the warehouse in the summer. There are known cases where it is used for cooling or cooling of public facilities.

  Examples of the use of snow and ice heat energy as described above are gradually increasing, but there are only about 50 facilities as of 2008, and it cannot be said that they are fully utilized. The reason is that the initial cost required for construction of the facility is large, and that a large amount of snow and ice needs to be transported every year in order to exert a great effect, so that a running cost is required. Therefore, the use of snow and ice thermal energy has the effect of reducing the environmental load such as carbon dioxide reduction, but since the cost reduction effect is small, the use of snow and ice thermal energy on a large scale has not been achieved. .

  The present invention has been developed in view of such a situation, and an object thereof is to provide a method for constructing a cold / hot warehouse utilizing an ice layer in consideration of cost reduction.

  Rarely, permafrost appears in civil engineering excavation work in mountainous areas in cold regions. The inventor artificially created such an event and built a warehouse in such a place to ensure low temperatures throughout the year, eliminate the need to transport snow and ice every year, and reduce running costs. We have developed a method for constructing a cold / hot warehouse.

  In the construction of the cold warehouse of the present invention, as technical problems to be solved, (1) how to form a thick ice layer, (2) how to suppress melting of the ice layer, (3) melting It can be considered how to regenerate the ice, (4) how to ensure the safety of the warehouse, and (5) how to build the warehouse in the ice layer. The present inventor proposes the following solutions regarding these points.

(1) How to form a thick ice layer A thin ice layer is formed by spreading water of several centimeters to several tens of centimeters, and a thick ice layer is artificially formed by repeating this process. If the ice layer does not reach the required thickness in one year, water is applied to the surface of the frozen ice and cured from spring to autumn to prevent melting of the ice and release the cured water in the following year. In winter, water is applied to the surface of the ice to regenerate the part melted over the years and thicken the ice layer. By repeating this for several years, an ice layer with the required thickness is formed.
(2) How to suppress melting of the ice layer Consider the top, bottom (surface in contact with the ground) and side of the ice layer.
First, melting of the upper surface of the ice layer is suppressed by applying water to the surface. This is because water reaches its maximum density at 4 ° C, and the water on the surface of the ice layer is kept in a state where it is not stirred, so that the water on the top surface of the ice layer is always cooled with ice to form a film of about 0 ° C. This is because suppression of melting of ice can be expected.
In addition, regarding the lower surface of the ice layer, after the construction of the cold warehouse, the ground is always covered with the ice layer, and it is expected that the ground will become frozen soil. However, since there is a possibility of melting by geothermal heat, a heat insulating material and a waterproof material are laid on the upper surface of the protective material. Alternatively, for the sake of completeness, it is also preferable to lay a heat pipe as will be described later in the ground.
Furthermore, about the side surface of an ice layer, what is called an ice tower which is mentioned later is installed, and the melting of an ice layer is suppressed.
(3) How to regenerate the melted ice Discharge the flood water on the top of the ice layer in the early winter and create a thin ice layer in the winter. This is done every year. In addition, when it is difficult to regenerate the ice layer, the depth of water filling is adjusted and the ice layer is regenerated repeatedly. When a predetermined thickness is reached, the surface of the ice layer is submerged and cured.
In addition, on the ice layer side, the water in the ice tower was changed in the fall, the vents at the top and bottom of the ice tower were opened in the winter to freeze the water in the ice tower, and the ice tower was vented in the spring. Close.
(4) How to ensure the safety of the warehouse By building the warehouse with structural materials such as steel, independent of the ice layer, ensure safety against ice loosening and cracking due to earthquakes, etc. .
(5) How to build a warehouse in the ice layer It is expected that it takes multiple years to form an ice layer. May induce melting of the ice layer. Therefore, the inside of the warehouse is frozen together when the ice layer is formed, and the ice inside the warehouse is cut out after completion. Alternatively, the interior of the warehouse may be filled with a heat insulating material such as styrene foam or earth and sand, and the heat insulating material or the like may be taken out after completion.

  According to claim 1 of the present invention, a cold warehouse construction method using an ice layer is surrounded by a weir and a natural ground, and a protective material is installed on the surface of the natural ground to form a space for forming an ice layer. An ice tower by providing a cavity in the weir, providing a vent for communicating the outside and the cavity in the upper and lower portions of the weir, and providing a plurality of ridges extending vertically in the cavity Forming a structure for a cold storage warehouse and a framework for a carry-in path in the space, forming an ice layer in the space, cutting out the ice in the space, Forming a necessary space of a road, and in the ice layer forming step, forming a thin ice layer by replenishing water in the early winter period to form an ice layer of a required thickness, Iceta with water on the tower wall Starts operation over, the winter end, is characterized in that by flooding the curing water to the surface of the ice layer to suppress the melting of the ice layer.

  The construction method of the cold warehouse using the ice layer described in claim 2 of the present application encloses the surrounding area by a weir and a natural ground, and installs a protective material on the surface of the natural ground to form a space for forming an ice layer. An ice tower by providing a cavity in the weir, providing a vent for communicating the outside and the cavity in the upper and lower portions of the weir, and providing a plurality of ridges extending vertically in the cavity Forming a structural member of a cold / hot warehouse and a framework for a carry-in path in the space, and placing a heat insulating material or earth and sand in a portion corresponding to the inside of the cold / hot warehouse and the inside of the carry-in path, and the space A step of forming an ice layer, and a step of taking out a heat insulating material or earth and sand disposed in a portion corresponding to the inside of the cold / hot warehouse and the inside of the carry-in passage to form a necessary space for the cold / heat warehouse and the carry-in passage In the ice layer creation process In the beginning of winter, water is repeatedly formed to form a thin ice layer to form an ice layer with the required thickness. In the last stage, curing water is flooded on the surface of the ice layer to suppress melting of the ice layer.

  The method for constructing a cold warehouse utilizing an ice layer according to claim 3 of the present application is characterized in that in the method of claim 1 or 2, the method further comprises a step of installing a heat pipe on the ground. is there.

  ADVANTAGE OF THE INVENTION According to this invention, the construction method of a cold / hot warehouse which suppressed the running cost low is maintained, maintaining reduction of environmental impacts, such as reduction of a carbon dioxide. In the method of the present invention, the construction of an efficient cold / hot warehouse is achieved by solving technical problems such as formation of a thick ice layer, suppression of melting of the ice layer, creation of melted ice, and ensuring safety of the warehouse. How to use is obtained.

  Next, an example of a method for constructing a cold / hot warehouse using an ice layer according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 (a) schematically shows the entire cold warehouse constructed by the method of the present invention, and FIG. 2 shows the steps of the cold warehouse construction method shown in FIG. 1 (a). FIG.

  First, a construction site for a cold / hot warehouse is created (see FIG. 2A). The construction site is created by excavating appropriate ground. In order to reduce the construction cost, a location where the construction amount of the weir 10 described later is reduced as much as possible (for example, a location where three sides are surrounded by natural ground and one side is surrounded by the weir 10) is selected. Is preferred.

  Next, in order to form a space for forming the ice layer 18, the weir 10 is formed at a location facing the natural ground of the construction site (see FIG. 2B). The weir 10 is provided to support the ice layer 18 and to suppress melting of the ice layer in cooperation with the ice tower 12 described later. The weir 10 is preferably made of concrete. In order to install the ice tower 12, the concrete frame of the weir 10 has a hollow inside, and vent holes 10a and 10b are provided in the lower and upper parts in order to vent the cavity. As shown in FIG. 3, the ice tower 12 is formed by a number of ridges 12 a arranged so as to extend vertically in the cavity inside the concrete skeleton, and freezes the water stretched in each ridge 12 a. In addition, the inside of the cavity is cooled by latent heat generated when the ice in the cage 12a is melted, and thereby, the melting of the ice layer on the side surface of the weir 10 is suppressed.

  Together with the formation of the weir 10 and the ice tower 12, a protective material 14 for protecting the surface of the natural ground of the construction site is installed (see FIG. 2B). A heat insulating material 14a and a waterproof material 14b are disposed on the surface of the protective material 14 on the ice layer side (see FIG. 1B). Similarly, it is preferable to arrange the heat insulating material 14a and the waterproof material 14b on the surface of the weir 10 on the ice layer side.

  Next, the structural member (column or the like) 16a of the cold / hot warehouse 16 is assembled in the space formed by the weir 10 and the natural ground (see FIG. 2C). Along with this, a framework 16b of the carry-in path to the cold / hot warehouse 16 is also installed.

  Next, the ice layer 18 is formed in the space formed as described above (see FIGS. 2D to 2F). The formation of the ice layer 18 starts at the beginning of the winter, but as described above, a thin ice layer is formed by spreading water of several centimeters to several tens of centimeters, and this is sequentially repeated. At the same time, the operation of the ice tower 12 is started by filling the ridge 12a of the ice tower 12 with water. At the end of the winter season, the curing water 20 is submerged on the surface of the ice layer 18 as described above in order to suppress melting of the ice layer 18.

  Next year, the curing water 20 is discharged at the beginning of winter, and the formation of the ice layer 18 is resumed. At the same time, the operation of the ice tower 12 is resumed. At the end of the winter season, the curing water 20 is submerged on the surface of the ice layer 18. These operations are repeated until the ice layer 18 having the required thickness is obtained.

  Next, the ice in the ice layer 18 is cut out to form the cold / hot warehouse 16 and the necessary space for the carry-in path (see FIG. 2 (g)). At the same time, the cold / hot warehouse 16 is completed by performing necessary work such as installation of the ventilation holes 16c, interior work, and electrical equipment work.

  When the ice layer 18 is melted, as described above, the curing water 20 is discharged in the early winter, the water of the ice 12a of the ice tower 12 is replaced, and the ice layer 18 is thinly stretched to melt. The ice layer 18 corresponding to the thickness is regenerated. If it is difficult to regenerate at once, the ice layer 18 is regenerated by repeating these operations.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, in the above-described embodiment, the insulating material 14a is provided on the protective material 14 to suppress melting on the lower surface of the ice layer 18, but as shown in FIG. In addition, the heat pipe 22 may be installed to further suppress thaw of the ice layer 18. The heat pipe 22 has a large number of pipes installed on the ground, the upper ends of the pipes are exposed to the ground, and the radiation fins 22a are attached. The heat medium enclosed in the pipe absorbs the heat in the ground. Then, it evaporates and rises, cools and liquefies by cold outside air on the ground, and descends to transport cold heat into the ground and freeze the ground around the installation site.

  Moreover, in the said embodiment, although ice is cut out in order to form the required space of the cold warehouse 16 after completion of the ice layer 18, a heat insulating material, earth and sand, etc. are arrange | positioned beforehand in the formation place of required space, After the ice layer 18 is completed, the heat insulating material and earth and sand may be taken out to form a necessary space for the cold / hot warehouse 16.

FIG. 1 (a) is a diagram schematically showing the entire cold / hot warehouse constructed by the method of the present invention, and FIG. 1 (b) is an enlarged view of a portion 1a of FIG. 1 (a). It is the figure which showed each process of the construction method of the cold / hot warehouse shown in FIG. It is an enlarged view which shows the inside of an ice tower. It is the schematic diagram which showed the state which installed the heat pipe.

DESCRIPTION OF SYMBOLS 10 Weir 10a, 10b Vent 12 Ice tower 12a １４ 14 Protection material 14a Heat insulation material 14b Waterproof material 16 Cold / warm warehouse 16a Structural member 16b Frame of carry-in path 16c Ventilation hole 18 Ice layer 20 Curing water 22 Heat pipe

Claims (3)

A method for constructing a cold / hot warehouse utilizing the ice layer,
Surrounding the surroundings by a weir and a natural ground, installing a protective material on the surface of the natural ground, forming a space for creating an ice layer;
An ice tower is formed by providing a cavity in the weir, providing a vent for communicating the outside and the cavity at the upper and lower portions of the weir, and providing a plurality of ridges extending vertically in the cavity. Process,
Assembling a structural member of a cold / hot warehouse and a framework for a carry-in path in the space;
Creating an ice layer in the space;
Cutting out the ice of the ice layer, forming a necessary space for cold storage and loading path;
Including
In the ice layer formation process, the ice layer of the required thickness is formed by repeatedly forming water in the early winter to form a thin ice layer, and water is applied to the base of the ice tower to operate the ice tower. A method characterized by suppressing the melting of the ice layer by injecting curing water onto the surface of the ice layer at the end of winter. A method for constructing a cold / hot warehouse utilizing the ice layer,
Surrounding the surroundings by a weir and a natural ground, installing a protective material on the surface of the natural ground, forming a space for creating an ice layer;
An ice tower is formed by providing a cavity in the weir, providing a vent for communicating the outside and the cavity at the upper and lower portions of the weir, and providing a plurality of ridges extending vertically in the cavity. Process,
Assembling the structural members of the cold / warm warehouse and the framework for the carry-in path in the space, and placing the heat insulating material or earth and sand in a portion corresponding to the inside of the cold / hot warehouse and the inside of the carry-in path;
Creating an ice layer in the space;
Removing the heat insulating material or earth and sand disposed in the portion corresponding to the inside of the cold and hot warehouse and the inside of the carry-in path, and forming the necessary space of the cold and hot warehouse and the carry-in path;
Including
In the ice layer formation process, the ice layer of the required thickness is formed by repeatedly forming water in the early winter to form a thin ice layer, and water is applied to the base of the ice tower to operate the ice tower. A method characterized by suppressing the melting of the ice layer by injecting curing water onto the surface of the ice layer at the end of winter. The method according to claim 1, further comprising a step of installing a heat pipe in the ground.

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