Concrete cooling device and concrete cooling method

Abstract

To cool concrete further effectively.SOLUTION: The concrete cooling device includes a cylindrical heat absorption section embedded in concrete in a predetermined length, a cylindrical heat radiation section protruding above the top edge of the concrete in a predetermined length, and a working fluid sealed integrally within the cylindrical sections of the heat absorption section and the heat radiation section. The concrete cooling method also includes the steps of preparing the concrete cooling device and supplying power to a temperature adjustment section to cool the concrete.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a concrete cooling device and a concrete cooling method. [Background technology]

[0002] Techniques for cooling concrete to prevent thermal cracking in mass concrete are known. For example, Patent Document 1 discloses a technique for controlling the temperature of concrete, which involves inserting a heat pipe with high thermal conductivity into the poured ready-mix concrete, thereby removing the heat of hydration generated as the concrete hardens. This technique makes it possible to prevent cracking in concrete caused by the temperature difference between the interior of the concrete and near the surface. Patent Document 2, which is unrelated to concrete, discloses a technique for a cooling device that can efficiently cool an object by alternately stacking heat pipes and Peltier elements for cooling equipment on the object to be cooled and a heat transfer plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6388973 [Patent Document 2] Japanese Patent Application Publication No. 11-351768 Summary of the Invention [Problem to be solved by the invention]

[0004] The invention of Patent Document 1 releases heat from concrete into the atmosphere by evaporation of working fluid sealed in a wick with a capillary structure formed inside the heat pipe, vapor movement, condensation, and circulation of the working fluid, and requires the preparation of a heat pipe with a complex internal structure. The invention of Patent Document 2 is not aimed at cooling concrete.

[0005] In view of the above background, the present invention provides a technique for more effectively cooling concrete. [Means for solving the problem]

[0006] One aspect of the present disclosure provides a concrete cooling device having a heat absorption section of a cylindrical body embedded in concrete for a predetermined length, a heat dissipation section of a cylindrical body protruding a predetermined length above the top edge of the concrete, and a working fluid sealed as a unit inside the cylindrical body of the heat absorption section and the heat dissipation section.

[0007] The concrete cooling device may include a temperature adjuster provided on the outer peripheral surface of the heat dissipation unit to cool the working fluid, and a power supply unit to supply power to the temperature adjuster.

[0008] This concrete cooling device may have a temperature measurement means for measuring the temperature of the concrete, a transmission means for transmitting measurement data indicating the temperature of the concrete to a predetermined terminal, and a power supply unit for supplying power to at least the transmission means.

[0009] In this concrete cooling device, the temperature measuring means may be provided on the outer peripheral surface of the heat absorption portion.

[0010] In this concrete cooling apparatus, the power supply unit may further include a power generation means, and the power supply unit may supply the power generated by the power generation means to the temperature adjustment body.

[0011] In this concrete cooling apparatus, the power supply unit may further include a power generation unit, and the power supply unit may supply power generated by the power generation unit to at least the transmission unit.

[0012] In this concrete cooling device, the power generating means may include a thermoelectric element that generates power using the temperature of the concrete, the heat absorption portion, or the heat radiation portion.

[0013] In this concrete cooling apparatus, the power generating means may include a power generating device that generates power using natural energy.

[0014] In this concrete cooling apparatus, the temperature adjusting body may include a Peltier element.

[0015] In this concrete cooling apparatus, the thermoelectric element may include a Peltier element.

[0016] In this concrete cooling apparatus, the working fluid may include ethanol.

[0017] Yet another aspect of the present disclosure provides a method for cooling concrete, including the steps of providing a concrete cooling device and supplying power to the temperature regulating body to cool the concrete. [Effects of the Invention]

[0018] According to the present invention, concrete can be cooled more effectively. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a diagram illustrating an example of the system configuration of a temperature control system 100. [Figure 2] 1 is a diagram illustrating an example of the functional configuration of a concrete cooling device 1. FIG. [Figure 3A] 1 is a perspective view illustrating an example of the appearance of a concrete cooling device 1 according to an embodiment. [Figure 3B] FIG. 1 is a top view of the concrete cooling device 1. [Figure 4] AA cross-sectional view of the concrete cooling device 1. [Figure 5] BB cross-sectional view of concrete cooling device 1. [Figure 6] FIG. 2 illustrates a cooling device 200 according to an embodiment. [Figure 7] 2 is a flowchart illustrating a concrete cooling method performed using the concrete cooling device 1. [Figure 8] A sequence chart illustrating a concrete temperature control method in the temperature control system 100. [Figure 9] FIG. 10 is a top view of a concrete cooling device 1 according to another embodiment. [Figure 10] FIG. 2 illustrates a cooling device 200 according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] 1. Configuration 1 is a diagram illustrating an example of the system configuration of a temperature control system 100. In this example, the temperature control system 100 (or simply referred to as "system") is a management system that appropriately controls the temperature of concrete / cools concrete using, for example, a concrete cooling device 1. In this example, the temperature control system 100 includes, for example, the concrete cooling device 1 and a management device 2.

[0021] The concrete cooling device 1 (or simply referred to as "cooling device / device") is a device for cooling concrete, and is an example of a cooling device introduced in a construction method (so-called "heat pipe cooling method") that uses heat pipes to suppress the temperature rise due to the heat of hydration of mass concrete (or simply referred to as "concrete").

[0022] The management device 2 is a device that manages the concrete cooling device 1, and includes, for example, an information processing device (such as a management device / terminal device) for controlling the concrete cooling device 1 in accordance with the internal temperature of the concrete. In this example, the management device 2 records various data including a database. Note that the concrete cooling device 1 and the management device 2 can exchange various data via, for example, a network 9. Here, the cooling of concrete will be described.

[0023] Generally, when concrete is poured at a construction site, the hydration (mixing) heat of the raw material cement causes a temperature difference between the inside and outer periphery (surface) of the concrete, which causes so-called internally restrained thermal cracking, a problem. Internally restrained thermal cracking refers to cracking caused by internal stress resulting from uneven temperature distribution inside the concrete (the surface is cooled by the outside air, while the inside temperature rises due to the heat of hydration). Therefore, in order to prevent such thermal cracking of concrete, it is necessary to reduce the temperature difference between the inside and surface of the concrete, for example, to cool the inside of the concrete, which has a high heat content.

[0024] For example, a method has been introduced in which heat pipes with large heat transfer rates are installed in concrete to remove heat from inside the concrete and release it to the outside (open air) (not shown). In this example, a working fluid (or simply "working liquid") is sealed inside the heat pipe to effectively transfer heat, and its heat transfer rate is known to be equivalent to a thermal conductivity several tens to several hundred times higher than, for example, when simply installing a copper rod. Another known method is pipe cooling, which uses a water circulation system to circulate the working fluid (water) inside the pipe. While this method provides a higher cooling effect than the above methods, it has various issues, such as time-consuming installation and construction and complicated operation.

[0025] In any case, in order to cool concrete more effectively, it is necessary to increase the cooling efficiency by forcibly cooling the working fluid of the heat pipe. Furthermore, in order to solve the various problems mentioned above, it is necessary to improve the workability and operability by using an improved concrete cooling device 1. Therefore, one of the objectives of the invention according to this embodiment is to solve these problems. The specific structure of the concrete cooling device 1 will be described later.

[0026] FIG. 2 is a diagram illustrating an example of the functional configuration of the concrete cooling device 1. In this embodiment, the concrete cooling device 1 includes a heat pipe 10, a working fluid 11, a temperature regulator 20, a power generating means 30, a temperature measuring means 40, a transmitting means 50, and a power supply unit 90. The heat pipe 10 (or simply referred to as "pipe / pipe 10") has a hollow pipe-shaped body with both ends closed, and is divided into a heat absorbing portion embedded in the concrete for a predetermined length and a heat radiating portion protruding above the top edge of the concrete for a predetermined length. The working fluid 11 is a liquid (fluid) sealed inside the heat pipe 10.

[0027] The temperature adjuster 20 is provided, for example, on the outer periphery of the heat dissipation unit, and cools the working fluid 11 through physical contact with the pipe body. In addition, the temperature adjuster 20 receives power from a power supply unit 90 to perform its cooling function.

[0028] The power generating means 30 includes a power generating device that generates power using natural energy. Alternatively, the power generating means 30 includes, for example, a thermoelectric element (Peltier element) that generates power using the temperature difference between both sides of the device (element) body. The power generating means 30 may be included as one of the components of the power supply unit 90. In this case, the power generating means 30 can supply the generated power to various devices via the power supply unit 90.

[0029] The temperature measuring means 40 measures, for example, the temperature of the concrete in contact with the outer periphery of the pipe body of the heat absorbing portion. In this example, the transmitting means 50 transmits, for example, measurement data indicating the internal temperature of the concrete measured by the temperature measuring means 40 to a predetermined terminal. In this example, the temperature measuring means 40 or the transmitting means 50 can receive power from a power supply unit 90.

[0030] The power supply unit 90 supplies, for example, power generated by the power generation means 30 to the temperature adjustment body 20, the temperature measurement means 40, and the transmission means 50. In this example, the power supply unit 90 includes the power generation means 30. Note that the power supply unit 90 may be an external power source (power supply device) simply for supplying power.

[0031] FIG. 3A is a perspective view illustrating the exterior of a concrete cooling device 1 according to one embodiment. In this example, the concrete cooling device 1 includes a heat pipe 10, a cooling device 200, and a power supply device 300. The heat pipe 10 includes, for example, a cylindrical member (single pipe / pipe) with both ends closed, and, for example, a working fluid can be sealed inside the pipe. The pipe is made of a material with relatively high thermal conductivity, such as a metal such as aluminum or copper. In this example, the heat pipe 10 is buried to a predetermined depth inside the concrete C, and can cool the concrete C using the thermal conduction of the working fluid and the pipe itself.

[0032] In this example, cooling device 200 (an example of a temperature adjuster) is a cooling device including, for example, a Peltier element (or referred to as a "first Peltier element"). Also, in FIG. 3A, cooling device 200 is provided, for example, on the outer circumferential surface of the heat dissipation portion of heat pipe 10, particularly on the side surface (curved portion of the cylinder) at the top of heat pipe 10, and can cool the working fluid inside the pipe via pipe 10. The Peltier element includes a thermoelectric element that has the Peltier effect (a type of thermoelectric effect) that generates a temperature difference between both sides of the element body in response to an applied current. Here, the cooling principle (including the Peltier effect) of cooling device 200 will be briefly described.

[0033] The heat absorption and radiation effects of the thermoelectric elements can be controlled by the direction and magnitude of the current, allowing the cooling device 200 to cool the working fluid inside the pipe via a physical contact surface. In this example, the cooling device 200 is modularized on a copper substrate (not shown), which has low heat capacity and excellent thermal uniformity, and contributes to fast temperature response and minimal temperature variation. This allows the cooling device 200 to achieve a more effective cooling function. Furthermore, by using Peltier elements as the thermoelectric elements that make up the cooling device 200, power consumption can be reduced, making it possible to use, for example, a relatively small battery as a power source.

[0034] In this example, the power supply device 300 (an example of a power supply unit / power generation means) is capable of generating power itself and is a main power source that supplies power to the cooling device 200 via a power line (not shown). The power supply device 300 is, for example, a device that generates power using natural energy and supplies the power, specifically a solar power generation device, and includes a solar panel.

[0035] The concrete cooling apparatus 1 may include other components, such as a communication device 500 for various data communications and / or a sheath pipe S for protecting the heat pipe 10, as shown in the figure. The concrete cooling apparatus 1 is preferably installed inside the concrete C via a sheath pipe S buried to a predetermined depth inside the concrete C for pipe reuse and protection. However, the concrete cooling apparatus 1 may be directly buried in the concrete C without using (or interposing) the sheath pipe S. However, if the concrete cooling apparatus 1 is directly buried in the concrete C, it is necessary to cut the heat pipe 10 to fit the top surface of the concrete after curing and fill the inside with non-shrink mortar or the like. The structure (internal structure) and function of the concrete cooling apparatus 1 will be described in more detail below.

[0036] 3B is a top view of the concrete cooling device 1. In this example, the power supply device 300 has a solar panel and can generate electricity using sunlight. It is also assumed that the pouring surface of the concrete C covers a wide area in plan view, and therefore multiple units of the concrete cooling device 1 may be installed at predetermined intervals depending on the pouring area of ​​the concrete C (not shown). Here, the internal structure of the concrete cooling device 1 will be described using a cross-sectional view taken along the line AA.

[0037] 4 is a cross-sectional view taken along the line AA of the concrete cooling device 1. In this example, the structure (members) of the heat pipe 10 itself is divided into a heat absorbing portion 10A and a heat radiating portion 10R in terms of the function of cooling the concrete C.

[0038] The heat absorption section 10A has the function of removing heat from the concrete C, and is a section that is embedded in the concrete C. In FIG. 4, a sheath tube S is embedded in the concrete C beforehand, and the pipe 10 itself is installed inside the sheath tube S. In this example, the sheath tube S is a member for protecting the heat pipe 10, and intermediate water W is poured into the sheath tube S beforehand. The gap between the sheath tube S and the pipe 10 is sealed with a lid. Therefore, the heat absorption section 10A can absorb heat via the intermediate water W (or air / water vapor) inside the sheath tube S that comes into contact with the concrete C.

[0039] The heat dissipation unit 10R has the function of dissipating the heat absorbed by the heat absorption unit 10A. In this example, the heat dissipation unit 10R is the portion that protrudes above the top edge of the concrete C, that is, in FIG. 4, it is the pipe on the side where the cooling device 200 is attached, with the top surface of the concrete C as the boundary.

[0040] The working fluid 11 is a medium that fills the gaps within the heat pipe 10 and transfers heat from the bottom to the top by convection within the gaps. The working fluid 11 includes, for example, a haloalkane refrigerant (such as HFC-134a) or ethanol. In this example, the cooling device 200 cools the side of the upper part (heat dissipation section 10R) of the heat pipe 10. The heat transferred from the bottom to the top of the heat pipe 10 by convection of the working fluid 11 within the pipe is released into the atmosphere from the outer surface of the heat dissipation section 10R of the heat pipe 10, and the working fluid 11 heated inside the concrete C is cooled via the heat pipe 10 by the heat absorption surface of the Peltier element. This indirectly cools the working fluid 11 in the upper part of the pipe.

[0041] A thermoelectric element 310 (an example of a power supply unit / power generation means), which is a modified example of the power supply device 300, is a cooling device 200 and also functions as a power generation means 30 and power supply unit 90, generating electricity from the temperature difference between both sides of the element body and supplying the generated electricity to various devices. The thermoelectric element 310 includes, for example, a Peltier element (or a "second Peltier element"). Here, the first Peltier element of the cooling device 200 is used to receive power and turn either of its two sides into a heat absorption or heat generation surface, while the second Peltier element is used to generate electricity from the temperature difference between the two sides of the Peltier element, i.e., the temperature difference between the heat absorption and heat generation surfaces. This is a power generation method that utilizes the properties of the inverse of the Peltier effect, the so-called Seebeck effect (a type of thermoelectric effect).

[0042] 4, the thermoelectric element 310 generates electricity from the temperature difference between both sides of the element body, that is, the contact surface with the outer circumferential surface of the heat pipe 10 (heat absorption portion 10A) and the contact surface with the intermediate water W or air. In this example, when the temperature distribution of the entire concrete cooling device 1 is taken into consideration, for example, the contact surface with the outer circumferential surface of the heat pipe 10 is the low temperature side, and the contact surface with the intermediate water W or air is the high temperature side.

[0043] As a result, the thermoelectric element 310 generates a current (generates electricity) from these temperature differences and supplies power to various devices, in this example, the communication device 500 or the thermometer 400, via current-carrying wires (not shown). It is known that power generation by the Seebeck effect is possible with a temperature difference of, for example, about 1°C, and the thermoelectric element 310 can be installed anywhere in the concrete cooling device 1 where even a slight temperature difference occurs. The thermoelectric element 310 may be installed, for example, on the inner circumferential surface of the sheath tube S or the outer circumferential surface of the heat dissipation section 10R.

[0044] The thermometer 400 (an example of a temperature measurement means) includes a device (e.g., a temperature sensor) for measuring the temperature of the concrete C. In this example, the thermometer 400 is attached to the lower end of the outer circumferential surface of the heat absorption part 10A or the bottom of the pipe 10, where the concrete temperature is less affected by the concrete cooling apparatus 1. For example, in FIG. 4, the thermometer 400 is installed on the outer circumferential surface of the heat absorption part 10A of the heat pipe 10, which is relatively close to the contact surface with the concrete C. Alternatively, the thermometer 400 may be attached not to the main body of the concrete cooling apparatus 1 but to the inner circumferential surface of the sheath tube S or the outer circumferential surface that directly contacts the concrete C. For example, the thermometer 400 may be attached anywhere as long as the operator can regard the temperature measured by the thermometer 400 as the internal temperature of the concrete C. The thermometer 400 includes an electronically controlled device, and is supplied with power by a thermoelectric element 310 or the like via a power cable (not shown).

[0045] The communication device 500 (an example of a transmitting means) includes a device for transmitting measurement data (temperature data) indicating the temperature of the concrete C measured by the thermometer 400 to a management device (an example of a predetermined terminal) not shown. In this example, the communication device 500 is installed in a location suitable for data transmission, such as on the outer circumferential surface of the heat dissipation portion 10R of the heat pipe 10 located outside the concrete C in FIG. 4. The communication device 500 can also acquire temperature data from the thermometer 400 via a communication line not shown. Furthermore, the communication device 500 receives power from the thermoelectric element 310 via a power line not shown.

[0046] In this way, the concrete cooling apparatus 1 can cool the concrete C. Next, the structure of the concrete cooling apparatus 1 will be described with reference to a cross-sectional view taken along the line BB.

[0047] 5 is a cross-sectional view taken along the line BB of the concrete cooling device 1. In this example, a cooling device 200 is attached to the outer circumferential surface of the heat dissipation section 10R of the heat pipe 10. The cooling device 200 is in close contact with the outer circumferential surface of the heat pipe 10 and can cool the working fluid 11 inside via the pipe material.

[0048] In this example, the cooling device 200 has a flexible (soft) structure that combines, for example, a Peltier element and a rubber material (for example, the flexible Peltier module AR-TEM-es-02 manufactured by Asahi Rubber Co., Ltd.). Therefore, even if the outer peripheral surface is a curved surface such as a ring, like the heat pipe 10 in FIG. 5, it can be bent and attached. Here, the cooling device 200 will be described.

[0049] FIG. 6 is a diagram illustrating a cooling device 200 according to one embodiment. In this example, FIG. 6 shows a side view of the cooling device 200. In this example, the cooling device 200 has a flexible material (a material with excellent shape changeability) that allows the body to be freely bent, as described above. This allows the cooling device 200 to be attached according to the curved surface of the heat pipe 10 described above, thereby enabling the working fluid to be cooled effectively.

[0050] 2.Operation Here, we will explain the operation of the concrete cooling device 1. The concrete cooling device 1 is assumed to be used, for example, at a construction site where concrete is poured. First, we will explain the overall flow of a concrete cooling method using the concrete cooling device 1.

[0051] 7 is a flowchart illustrating a concrete cooling method performed using the concrete cooling apparatus 1. In step S1, an operator prepares the concrete cooling apparatus 1. In this example, preparation includes the task of installing the concrete cooling apparatus 1 (including the sheath pipe S) in advance at a predetermined interval in the location where concrete is to be poured.

[0052] In step S2, the worker pours the concrete. In this example, the worker pours the raw concrete into the pouring area. In this example, the worker pours the concrete until the heat dissipation portion 10R of the heat pipe 10 is exposed (protrudes) from the top edge of the concrete.

[0053] In step S3, the worker starts cooling the concrete cooling device 1. In this example, the temperature adjusting device 20 receives power from the power generating means 30 or the power supply unit 90 and cools the working fluid 11 inside the pipe. So far, an overview of the cooling method using the concrete cooling device 1 has been explained. The concrete cooling device 1 is capable of various temperature controls by linking with the management device 2. For example, the temperature adjusting device 20 may be instructed to operate when the internal temperature of the concrete C measured by the thermometer 400 reaches a predetermined temperature, which is the time to start cooling. Next, a concrete temperature management method in the temperature management system 100 will be explained.

[0054] 2-1.Concrete temperature control method FIG. 8 is a sequence chart illustrating a concrete temperature control method in the temperature control system 100. In this example, the temperature control system 100 can more effectively suppress thermal cracking by performing appropriate temperature control regarding the cooling of the concrete C. Furthermore, by automatically controlling the cooling work by the system, the efficiency and reliability of the work can be improved. In this example, the following process is executed, for example, when cooling is started by the concrete cooling device 1 (step S3 in FIG. 7).

[0055] In step S101, the concrete cooling device 1 measures the internal temperature of the concrete C. In this example, the temperature measurement means 40 of the concrete cooling device 1 measures the temperature at a predetermined location (a location that is considered to be the internal temperature of the concrete C). The temperature measurement means 40 can perform measurements at any frequency, for example, and obtain temperature data (an example of measurement data) for each time-series change at the measurement location.

[0056] In step S102, the concrete cooling device 1 transmits the measured temperature data to the management device 2. In this example, the concrete cooling device 1 transmits the data using a predetermined communication method via the transmission means 50. The data is transmitted at any frequency, for example.

[0057] In step S103, when the management device 2 acquires temperature data from the concrete cooling device 1, it records the acquired data in a database. In this example, the management device 2 records temperature data for each time-series change at the measurement point. Here, in order to cool the concrete C, the temperature management system 100 needs to control the cooling temperature of the temperature adjusting body 20 to appropriately cool the working fluid 11.

[0058] In step S104, the management device 2 refers to a predetermined temperature plan and compares it with the measurement data recorded in the database. In this example, the temperature plan includes, for example, a schedule for lowering the temperature of the target concrete to a predetermined temperature in a predetermined period of time. In this example, the management device 2 controls the cooling temperature of the temperature adjusting body 20 based on this schedule to adjust the temperature of the working fluid 11 (concrete C).

[0059] In step S105, the management device 2 outputs a control instruction to the concrete cooling apparatus 1. In this example, the control instruction includes an instruction to change the magnitude of the current value passed through the temperature adjusting body 20 or the magnitude of the power value supplied by the power supply unit 90 to the concrete cooling apparatus 1. Note that the concrete cooling apparatus 1 can obtain the control instruction from the management device 2 via the communication device 500, for example.

[0060] In step S106, when the concrete cooling device 1 receives the control instruction from the management device 2, it changes the setting of the temperature adjusting device 20 in accordance with the instruction. In this example, the concrete cooling device 1 increases the current value applied to the device main body, for example, to increase the cooling function of the temperature adjusting device 20. This allows the temperature adjusting device 20 to further cool the working fluid 11.

[0061] As described above, the temperature control system 100 can adjust the temperature of the temperature adjusting body 20 that cools the working fluid 11, for example, based on measurement data indicating the temperature of the concrete. This allows the temperature control system 100 to appropriately manage the temperature of the target concrete, thereby effectively preventing the occurrence of thermal cracks.

[0062] 3. Variations The present invention is not limited to the above-described embodiment, and various modifications are possible. Some modifications will be described below. Two or more of the following features may be combined and applied.

[0063] (1) Temperature control system 100 The hardware configuration, network configuration, and functional configuration of the temperature control system 100 are not limited to those exemplified in the embodiment. The temperature control system 100 may have any hardware configuration, network configuration, and functional configuration as long as the required functions can be realized. For example, multiple physical devices may cooperate to function as the temperature control system 100. In this example, the concrete cooling device 1 may have at least some of the functions described as being implemented in the management device 2. In this example, the concrete cooling device 1 may control the temperature management of the concrete C itself.

[0064] (2) Concrete cooling equipment 1 The hardware configuration, device configuration, and functional configuration of the concrete cooling apparatus 1 are not limited to those exemplified in the embodiment. The concrete cooling apparatus 1 may have any hardware configuration, device configuration, and functional configuration as long as the required functions can be realized. For example, multiple physical devices may cooperate to function as the concrete cooling apparatus 1. Furthermore, the correspondence between the functional elements included in the concrete cooling apparatus 1 and the hardware or various devices is not limited to those exemplified in the embodiment. In this example, at least some of the functions of the power supply device 300 and the thermoelectric element 310 may be implemented in, for example, the power supply unit 90. Furthermore, at least some of the components included in the concrete cooling apparatus 1 may be connected to a computer network such as the Internet via, for example, a communication device 500 and controlled by various information processing devices. The concrete cooling apparatus 1 may also have physical hardware such as a processor, memory, storage, or communication device for controlling the temperature of the concrete.

[0065] The concrete cooling apparatus 1 may also include a sheath pipe S and intermediate water W. The concrete cooling apparatus 1 may not also include the power supply device 300, the thermoelectric element 310, the thermometer 400, and the communication device 500. In other words, the concrete cooling apparatus 1 only needs to have a heat pipe 10 as the main body, a working fluid 11 sealed therein, a temperature adjuster 20 for cooling the working fluid 11, and a power supply unit 90 for supplying power to the temperature adjuster 20. In the concrete cooling apparatus 1, the working fluid 11 inside the heat pipe 10 may be a gas, a gas-liquid two-phase fluid, a gel, a sol, or the like, instead of a liquid.

[0066] Furthermore, the appearance, configuration, and functions of the concrete cooling device 1 shown in the figure are merely an example and merely represent an overview of the concrete cooling device 1. Therefore, the concrete cooling device 1 may be equipped with any sensors, devices, and equipment, and these may be installed in any location. In this example, the concrete cooling device 1 may have, for example, a power storage device (battery) in addition to the power supply device / power generation device. Also, in this example, the concrete cooling device 1 may have a thermometer for measuring the outside air temperature.

[0067] (3) Heat pipe 10 The functional configuration of the heat pipe 10 is not limited to the example shown in the embodiment. The heat pipe 10 may have any functional configuration as long as it can achieve the required functions. In this example, the shape of the heat pipe 10 may be any shape, and the heat dissipation section 10R may be processed into a shape that allows the heat dissipation section 10R to easily dissipate heat, such as a star-shaped shape in horizontal cross section that increases the surface area for heat dissipation.

[0068] 9 is a top view of a concrete cooling device 1 according to another embodiment. In this example, the heat pipes 10 have various shapes. The variations may be, for example, a hexagonal shape, as shown in the cross section of FIG. 9.

[0069] Furthermore, the working fluid 11 sealed inside the heat pipe 10 may be any type, and instead of HFC-134a or ethanol, it may be, for example, various other fluids, a viscous fluid, or simply water. To enhance the cooling effect, the working fluid 11 is preferably filled to a height at least equal to or higher than the concrete top surface (the boundary surface between the heat dissipation section 10R and the heat absorption section 10A). Furthermore, the working fluid 11 does not have to be sealed. In this case, it may be maintained in the heat pipe 10 in a state with high cooling performance, for example, by combining it with a water circulation system.

[0070] (4) Cooling device 200 The form of the functional configuration of the cooling device 200 is not limited to that exemplified in the embodiment. The cooling device 200 may have any form of functional configuration as long as it can realize the required functions. In this example, the cooling device 200 may be made of any material. For example, each module of the cooling device 200 may be coated with a resin material, which provides resistance to corrosion caused by rainwater / condensation water. The cooling device 200 may have any shape, for example, a cylindrical (columnar) shape that completely covers the heat dissipation unit 10R.

[0071] Fig. 10 is a diagram illustrating a cooling device 200 according to another embodiment. In Fig. 10, the cooling device 200 includes, for example, a heat sink HS. In this example, the heat sink HS is attached to a surface of the cooling device 200, for example, the surface opposite to the surface in contact with the heat dissipation unit 10R (the so-called heat dissipation surface). This increases the heat dissipation area of ​​the cooling device 200, allowing the working fluid to be cooled effectively.

[0072] (5) Power supply device 300 The functional configuration of the power supply device 300 is not limited to that exemplified in the embodiment. The power supply device 300 may have any functional configuration as long as it can realize the required functions. In this example, the power supply device 300 may be installed as a device separate from the concrete cooling device 1. The power supply device 300 may also supply power to any device or equipment via the power supply unit 90. The power supply device 300 may also be a power generation device that uses other natural energy sources besides solar power, such as wind power. In the case of a wind power generation system, the power supply device 300 includes a simple windmill. The power supply device 300 may also be an external power source (power supply device) that does not generate power but simply supplies power from a battery.

[0073] (6) Thermoelectric element 310 The functional configuration of the thermoelectric element 310 is not limited to that exemplified in the embodiment. The thermoelectric element 310 may have any functional configuration as long as it can achieve the required functions. In this example, the thermoelectric element 310 may be installed not in the heat absorption portion 10A of the heat pipe 10 but, for example, in the heat dissipation portion 10R or the sheath tube S, as long as it is located in a place where power can be generated by the temperature difference between both sides. Furthermore, the thermoelectric element 310 may supply power to any device or equipment via the power supply unit 90.

[0074] (7) Thermometer 400 The functional configuration of the thermometer 400 is not limited to that exemplified in the embodiment. The thermometer 400 may have any functional configuration as long as it can achieve the required functions. In this example, the thermometer 400 may be either analog or digital. The concrete cooling device 1 may also have multiple thermometers 400. In this example, the thermometers 400 may be installed, for example, near the heat absorption portion 10A of the heat pipe 10 and near the heat radiation portion 10R, and in this case, the temperature difference between the two locations where the thermometers 400 are located may be measured.

[0075] (8) Communication device 500 The functional configuration of the communication device 500 is not limited to that exemplified in the embodiment. The communication device 500 may have any functional configuration as long as it can realize the required functions. In this example, the communication device 500 may be integrated with the thermometer 400, for example. Furthermore, in addition to data communication with the management device 2, the communication device 500 may have a function for communicating with various devices in the concrete cooling device 1 (for example, near field communication).

[0076] (9) Management device 2 The functional configuration of the management device 2 is not limited to that exemplified in the embodiment. The management device 2 may have any functional configuration as long as it can realize the required functions. Furthermore, the correspondence between functional elements and hardware is not limited to that exemplified in the embodiment. For example, at least some of the functions described in the embodiment as being implemented in the management device 2 may be implemented in another device or system, or conversely, at least some of the functions described in the embodiment as being implemented in another device or system may be implemented in the management device 2. In this example, the management device 2 may have an input device and / or a display device. In this example, the input device is a device for inputting information to the management device 2 and includes, for example, a touch screen, a keyboard, a mouse, or a pointing device. In this example, the display device is a device for displaying information and includes, for example, an organic electroluminescence (EL) display, a liquid crystal display, or a mobile terminal such as a pre-registered smartphone or tablet. These devices are used, for example, when a user intervenes in the system.

[0077] (10) Concrete cooling method The flowchart shown in FIG. 7 merely shows one example of the operations, and the concrete cooling method is not limited to this. Some of the operations shown may be omitted or changed, the order may be changed, or new operations may be added. In this example, in step S1, the concrete cooling device 1 may start cooling in advance, and if the outside temperature is high, this allows the poured concrete C to be cooled immediately in step S2. Furthermore, the concrete cooling device 1 may be installed by transporting it by workers, or in the case of large-scale construction, by using a crane or the like.

[0078] (11) Concrete temperature control method The sequence chart shown in FIG. 8 merely shows one example of the operation, and the operation of the temperature control system 100 is not limited to this. Some of the illustrated operations may be omitted or changed, the order may be changed, or new operations may be added. In this example, the management device 2 may manage the temperature of the concrete using, for example, a preset temperature threshold in addition to or instead of the method of using the temperature plan described above to lower the temperature of the concrete to a predetermined temperature in a predetermined period of time. In this example, the threshold may be set to, for example, the surface temperature of the concrete. This makes it possible to maintain the internal temperature and surface temperature of the concrete at the same temperature, thereby suppressing the occurrence of temperature differences.

[0079] Furthermore, the management device 2 may notify the user when the temperature of the concrete has dropped to a designated temperature. In this example, the temperature management (cooling) of the concrete is performed under the supervision of the user who is the worker. Therefore, the management device 2 can make a judgment based on the temperature data acquired from the concrete cooling device 1 and notify the user whether the temperature of the concrete has dropped to the designated temperature.

[0080] Furthermore, the present invention can be used not only to suppress temperature rises due to hydration reactions inside the concrete C in order to prevent internally restrained thermal cracking of the concrete C, but also to prevent cracking by preventing a sudden drop in temperature at the outer periphery (surface) of the concrete C during periods such as winter when the outside air temperature is low. The Peltier element used in the cooling device 200 can also be used as a heating device by changing the power supply, in which case the sheath tube S should only be inserted into the concrete C up to the outer periphery. The installation location is determined based on numerical calculations such as temperature stress analysis to obtain the most effective results. [Explanation of symbols]

[0081] 100...Temperature control system, 1...Concrete cooling device, 2...Management device, 10...Heat pipe, 10A...Heat absorption section, 10R...Heat radiation section, 11...Working fluid, 20...Temperature adjustment body, 200...Cooling device, 30...Power generation means, 300...Power supply device, 310...Thermoelectric element, 40...Temperature measurement means, 400...Thermometer, 50...Transmission means, 500...Communication device, 9...Network, 90...Power supply section, C...Concrete, HS...Heat sink, S...Sheath pipe, W...Intermediate water

Claims

1. a cylindrical heat absorption part embedded in concrete for a predetermined length; a cylindrical heat dissipation portion protruding a predetermined length above the top edge of the concrete; a working fluid sealed integrally within the cylindrical bodies of the heat absorption portion and the heat radiation portion; A concrete cooling device having a cooling mechanism.

2. a temperature adjusting body provided on an outer peripheral surface of the heat dissipation part and configured to cool the working fluid; a power supply unit that supplies power to the temperature adjusting unit; 10. The concrete cooling system of claim 1, comprising:

3. a temperature measuring means for measuring the temperature of the concrete; a transmitting means for transmitting measurement data indicating the temperature of the concrete to a predetermined terminal; a power supply unit that supplies power to at least the transmitting means; 2. The concrete cooling device of claim 1, further comprising:

4. The temperature measuring means is provided on the outer circumferential surface of the heat absorbing portion.

4. The concrete cooling system of claim 3.

5. the power supply unit further includes a power generation means, The power supply unit supplies the power generated by the power generation means to the temperature adjustment body.

3. The concrete cooling system of claim 2.

6. the power supply unit further includes a power generation means, The power supply unit supplies the power generated by the power generation unit to at least the transmission unit.

4. The concrete cooling system of claim 3.

7. The power generating means includes a thermoelectric element that generates power using the temperature of the concrete, the heat absorbing portion, or the heat radiating portion.

7. A concrete cooling device according to claim 5 or 6.

8. The power generation means includes a power generation device that generates power using natural energy.

7. A concrete cooling device according to claim 5 or 6.

9. The temperature adjusting body includes a Peltier element 3. The concrete cooling system of claim 2.

10. The thermoelectric element includes a Peltier element.

8. A concrete cooling system according to claim 7.

11. The working fluid contains ethanol 2. The concrete cooling system of claim 1.

12. providing a concrete cooling system according to claim 2; supplying power to the temperature adjusting body to cool the concrete; A concrete cooling method comprising:

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