JP5951832B1 - Thermal storage heating system - Google Patents

Abstract

Provided is a heat storage and heating device that can prevent condensation on a window surface and is useful for preventing a downdraft in which cool air descends from a glass surface and a cold draft. A heat storage and heating device, such as a window glass, provided with a heat dissipation element filled with a heat storage medium and a support member capable of detachably installing a plurality of heat dissipation elements with a gap. The heat storage medium filled in the heat radiating element 12 uses a latent heat storage material with a phase change from liquid to solid, and utilizes solidification latent heat when the latent heat storage material changes phase from liquid to solid. As a result, an ascending air current is generated in the vicinity of the heat dissipating element 12 to reduce the indoor relative humidity. [Selection] Figure 1A

Description

  The present invention relates to a heat storage and heating device, and in particular, a cold draft that prevents condensation caused by a temperature difference between the inside and outside during the winter season, mitigates cold air transmitted to the indoor side through the glass surface, and cool air falls from the glass surface of the window. The present invention relates to a heat storage and heating apparatus suitable for prevention.

During winter, the temperature around the window glass with poor thermal insulation performance tends to decrease due to the temperature difference between indoor and outdoor, and the temperature near the glass surface often falls below the dew point, so condensation may occur on the glass surface. . Such condensation causes mold on the window frame and the wall surface, and causes deterioration of the environment in the living room.To prevent condensation, wipe off water droplets on the glass surface, or use a panel heater on the window surface. Measures such as installation are taken. In particular, in the winter season, the outside air temperature decreases most from around 4:00 to 6:00 in the morning. Therefore, condensation tends to occur on the surface of the window glass during the time period.

  Conventionally, a heater for preventing condensation described in Japanese Patent Application Laid-Open No. 2003-10667 (Patent Document 1) has been proposed by the applicant of the present invention. In the invention described in the publication, a plurality of belt-like heating elements are arranged in parallel with a gap therebetween, and an electric heater is provided inside the belt-like heating element, and an opening edge formed between the belt-like heating elements While the lower edge side is the air inlet, the upper edge side is the hot air outlet. With such a configuration, an air curtain is formed in the vicinity of the glass surface by the film-like rising heat flow radiated from the hot air discharge port, and the temperature in the vicinity of the window is raised to raise the inner glass surface temperature to the dew point or higher. In addition, condensation on the surface of the window glass is prevented by promoting evaporation of water droplets condensed by the rising airflow.

  In other words, in order to prevent the condensation of the window glass, it is effective not to lower the temperature of each part of the glass surface. Therefore, in the invention described in Patent Document 1, countermeasures for condensation are taken by raising the temperature near the window glass above the dew point. Is going.

JP 2003-10667 A

However, the invention described in Patent Document 1 is a countermeasure against condensation using electricity by exemplifying a carbon fiber heater, a sheet heating element, or a nichrome wire as a heat source of the heater. In this case, for example, in the case of a heater having a length of 600 mm in the longitudinal direction, the power consumption is 55 W. Therefore, the electricity cost when used for one month as a countermeasure for condensation is about 1,000 yen. Become.
Or the cost required for dew condensation countermeasures when using a heater with a length in the longitudinal direction of 1,800 mm is 175 W, so the electricity bill for continuous use for one month is 3,000. Although it is about a circle, further reduction of running cost is desired from the viewpoint of energy saving and power saving.
In addition, it is possible to replace the window glass with a double-layer glass such as a pair glass with a thick air layer so as not to lower the surface temperature of the glass surface on the indoor side. In many cases, it is practically difficult to replace glass with double-glazed glass in terms of cost, construction work, and the like.

The present invention has been made in view of such circumstances, and it is possible to prevent condensation on the window surface without directly using electric power and the like, and a downdraft in which cool air falls from the glass surface, and It aims at providing the thermal storage heating apparatus which is useful also in prevention of a cold draft.

The invention according to claim 1 is the heat dissipation element (12, 20, 30, 40, 54) in which the latent heat storage material is filled and the solidification point of the latent heat storage material is in the range of 15 ° C to 65 ° C. In the heat storage and heating device, the latent heat storage material uses solidification latent heat when the phase changes from a liquid to a solid, and the indoor airflow is generated by the rising airflow generated around the heat dissipation element (12, 20, 30, 40, 54). This reduces the relative humidity of the air that touches the window glass and suppresses the temperature drop of the window glass, and the heat dissipating elements (12, 20, 30, 40, 54) are formed in a flat plate shape and arranged in parallel in two or more. When the thickness of the heat dissipating element is d (mm), the relationship of 5 ≦ d ≦ 75 is satisfied, and the height of the heat dissipating element (12, 20, 30, 40, 54) is L (Mm) When the clearance S (mm) of the rement (12, 20, 30, 40, 54) is satisfied, the relationship of 2 ≦ S ≦ 4.5 × L ^0.2 +5 is satisfied ,
The heat dissipating element (12, 20, 30, 40, 54) includes a support member (14) on which the detachable element is detachably installed. The support member (14) has at least a rising portion (14B), and the rising portion (14B) is provided with a plurality of groove portions (15) to be fixed in a state where the end portions of the heat dissipating elements (12, 20, 30, 40, 54) are inserted, and the intervals between the groove portions (15) are set at a fine pitch. The gap S between the formed and fixed heat dissipating elements (12, 20, 30, 40, 54) can be finely adjusted,
When the heat dissipating element (12, 20, 30, 40, 54) is installed on the support member (14), a gap is formed below the lower end of the heat dissipating element (12, 20, 30, 40, 54). The lower part of the groove (15) is formed at a position slightly shifted upward and is configured to take in air from the gap.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to prevent dew condensation of a window surface using unused energy, such as hot spring heat and the hot water of a bathtub, and has the effect of reducing electric power consumption significantly.
It is also effective in preventing downdrafts and cold drafts where cold air falls from the glass surface of the window, and contributes to energy saving during heating.

It is a schematic perspective view which shows the relationship with the window glass in which the thermal storage heating apparatus which concerns on this invention was installed. It is the figure which showed the hybrid type thermal storage heating apparatus among the thermal storage heating apparatuses which concern on this invention, Comprising: FIG. 1B (a) is a front view, FIG.1B (b) is a top view, FIG.1B (c) is a side view. It is. It is the outline which shows the relationship with the window glass in the thermal storage heating apparatus which concerns on this invention shown to FIG. 1A, Comprising: Fig.2 (a) is a front view which shows the relationship between a thermal storage heating apparatus and a window glass, FIG.2 (b). Is a side view showing the relationship between the apparatus and the window glass, and FIG. 2C is a plan view showing the relationship between the apparatus and the window glass. Similarly, it is a perspective view which shows the state which decomposed | disassembled the structural member of the thermal storage heating apparatus which concerns on this invention shown to FIG. 1A. Similarly, it is the schematic which showed the flow of the air in the thermal storage heating apparatus which concerns on this invention shown to FIG. 1A, and is arrow sectional drawing along the IV-IV line of FIG.2 (c). Similarly, it is the schematic which showed the modification of the thermal radiation element used for the thermal storage heating apparatus which concerns on this invention. It is the figure which showed the application example of the heat storage heating apparatus which concerns on this invention, (a) is a front view, (b) is a side view, (c) is a top view, (d) is a schematic perspective view which shows a use condition. . Similarly, it is the figure which showed the application example of the thermal storage heating apparatus which concerns on this invention, (a) is a perspective view which shows the whole structure, (b) is the top view and front view of a rack (support member), (c) is heat dissipation. It is the top view, front view, and side view of an element. Similarly, it is the figure which showed the application example of the thermal storage heating apparatus which concerns on this invention, and is the figure which showed schematic structure of the thermal storage heating apparatus using the heat radiating element formed in the rod shape. Similarly, it is explanatory drawing which showed the height L, the thickness d, and the clearance gap S in the thermal radiation element of the thermal storage heating apparatus which concerns on this invention. Similarly, it is the graph which showed the result of having performed the numerical analysis about the influence of the various factors which give to the thermal radiation amount of the thermal storage heating apparatus which concerns on this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a heat storage and heating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1A is a schematic perspective view showing a relationship with a window glass in which a heat storage heating device according to the present invention is installed, FIG. 2A is a front view showing a relationship between the heat storage heating device and the window glass, and FIG. Is a side view showing the relationship between the apparatus and the window glass, FIG. 2C is a plan view showing the relationship between the apparatus and the window glass, and FIG. 3 is a perspective view showing an exploded state of the heat storage and heating apparatus.

The heat storage and heating device 10 is installed at the lower part of the window surface 100 on the indoor side. For example, a plurality of heat dissipating elements 12 are provided with a certain gap, and the recesses and protrusions formed in each element are fitted together. As shown in FIG. 1, the heat dissipating element 12 is fixed in a state where it is inserted into a horizontal frame (rack) 14 as a support member.
The regenerative heating device 10 here is installed mainly for the purpose of preventing dew condensation that occurs on the indoor window surface, but at the same time has a function as a heating device that prevents or alleviates cold air intrusion and cold draft from the window surface. Have both.

The inside of the heat dissipating element 12 is filled with a latent heat storage material, and the latent heat storage material accompanies a phase change from solid to liquid during the heat storage, so that it is possible to store an amount of heat that is orders of magnitude greater than that of a normal sensible heat storage material. Therefore, it is possible to function in the morning where the outside air temperature is particularly low and condensation is likely to occur. In this embodiment, as a latent heat storage material, the main component is polyethylene glycol (PEG) capable of controlling the phase change temperature relatively freely, and calcium chloride having a freezing point near room temperature and a large solidification-melting latent heat. Something is used.
A latent heat storage material is a heat storage material that utilizes the property of melting a substance to store heat as a liquid and releasing heat when the phase changes from a liquid to a solid. In such a latent heat storage material, since it is liquefied at the time of melting, the heat dissipating element 12 needs to have a sealing property and be able to withstand expansion and contraction. Here, the liquid includes a “gel (jelly) molten state” and “an internal molten state impregnated with something” in addition to a complete liquid.

Polyethylene glycol is obtained by adding ethylene oxide to ethylene glycol or water, and is not a single composition but a mixture of polyethylene glycols having different molecular weights as in a general polymer compound. For example, PEG-6000S (freezing point 62 ° C.) or the like can be used from trade name PEG-1000 (freezing point 37 ° C.) manufactured by Sanyo Chemical Industries, Ltd. In order to prevent dew condensation on the window surface during the winter season, it is preferable that the phase change temperature (freezing point) is in the range of 15 ° C to 65 ° C, preferably in the range of 15 ° C to 50 ° C. It is clear from the experimental results. The thickness d (mm) of the heat dissipating element 12 is within the range of 5 ≦ d ≦ 75, preferably 15 ≦ d ≦ 50.

The grounds when the lower limit of the freezing point of the latent heat storage material is set to 15 ° C. in the range of the phase change temperature described above are as follows. In general, the indoor temperature and humidity vary depending on the area and the use of the building, but the maximum dew point in the room is about 14 ° C. as shown in Table 1. Therefore, the lower limit of the freezing point of the latent heat storage material is set to 15 ° C., which is slightly higher than that.
For example, assuming that the outside air temperature drops to 7.5 ° C. or less when the room temperature is 20 ° C. and the relative humidity is 50% (dew point 9 ° C.), as shown in Table 1, a single-layer glass having a thickness of 3 mm In this case, the glass surface temperature on the indoor side is below the dew point of 9 ° C., and the glass surface on the indoor side is condensed.

In order to prevent dew condensation under such circumstances, the heat radiating element 12 is installed in the lower part of the space formed between the window and the curtain, and the indoor side glass is formed by the solidification latent heat of the latent heat storage material filled therein. Increasing the temperature of the air layer adjacent to the surface to a temperature at which condensation does not occur is considered as a preventive measure.
Specifically, the heat dissipating element 12 having a freezing point of 15 ° C. is installed in the lower part of the space between the window and the curtain. Since the space between the window and the curtain is partitioned from the room by the curtain, the temperature is lower than that in the room. For this reason, by releasing solidification latent heat from the heat dissipating element 12 having a freezing point of 15 ° C. in the lower part of the space, the temperature of the space is raised and an upward air flow is generated. Thereby, while reducing the relative humidity of the space between a window and a curtain, the glass surface temperature of an indoor side can be kept more than a dew point, and the condensation of a window glass can be prevented by the evaporation effect by an airflow.

Here, the latent heat storage material having a freezing point of 15 ° C. is kept in a liquid state when the indoor temperature during the day is 20 ° C. On the other hand, when the outside air temperature decreases, the room temperature also decreases, and the relative humidity gradually increases accordingly. When the room temperature further decreases and the heat dissipating element 12 falls below 15 ° C., the latent heat storage material filled therein begins to solidify, and the solidified latent heat is released accordingly.
In addition, about a latent heat storage material, it is desirable from an energy-saving viewpoint if it heat-stores using unused energy, such as hot spring heat and waste water.

The upper limit of the freezing point was set to 65 ° C. as follows.
In the cold season of cold regions, the outside air temperature often falls below -20 ° C, and condensation occurs during the day. In such a case, a latent heat storage material with a high phase change temperature is required, but the heat source for melting is limited to combustion exhaust gas when using unused energy, so its use is extremely limited. Will be.

Therefore, by using a hybrid heat storage and heating device that combines a conventional electric heater and a heat dissipation element filled with a latent heat storage material, it is possible to supplement the amount of heat that is insufficient in the cold season with an electric heater. It is an effective policy on the ground.
FIG. 1B is a diagram showing an outline of a hybrid type heat storage and heating device 50. As shown in the figure, the hybrid heat storage and heating apparatus 50 combines an electric heater 52 and a heat dissipating element 54, places the electric heater 52 inside a rack 56, and is filled with a latent heat storage material above it. The heat dissipating element 54 is detachably installed.

For the heat storage in the latent heat storage material filled in the heat dissipation element 54, it is possible to melt and store heat at a cheap nighttime power at night and to dissipate heat between 8am and 22:00 in the time when demand increases. It is also used for leveling demand. At this time, the freezing point of the latent heat storage material is set to an upper limit of 65 ° C. in consideration of heating / melting by an electric heater, indoor heating performed by changing the downdraft in the vicinity of the window glass to an ascending current, and prevention of condensation.

Further, assuming that the thickness of the heat dissipating element 12 is d (mm), d satisfies the relationship of 5 ≦ d ≦ 75 . The thickness d of the heat dissipating elements 12, 54 is an important factor for effectively releasing the solidification latent heat to the surroundings. When the room temperature is below the freezing point, the latent heat storage material melted by unused energy or the like starts to solidify from the surface side of the heat dissipating element 12, and the solid layer gradually advances into the heat storage material. Even if the room temperature is below the freezing point, in the vicinity thereof, the speed of progression into the solid layer due to solidification is slow and the duration of functioning as a latent heat storage material per unit weight becomes long, but the thickness d of the element is extremely When it becomes thin, the room temperature becomes below the freezing point, and at the same time, the entire heat storage material is solidified in a short time, and it may not function as a heat storage material in the time zone when the outside air temperature at 4:00 to 6:00 in the morning is the lowest.

That is, of 5 ≦ d ≦ 75, d = 5 mm, which is the minimum value, is a limit thickness that effectively releases latent heat of solidification. On the other hand, the maximum thickness d = 75 mm indicates that when the latent heat storage material reaches the freezing point due to a decrease in the room temperature, when the solid layer expands from the surface to the inside and the thickness increases, the solidification latent heat generated inside is The solid layer that has already solidified becomes the thermal resistance, but the thickness is such that the amount of heat released from the element surface is not extremely reduced, and the depth that can be installed at the bottom of the window frame is secured. In addition, when two or more elements are installed adjacent to each other, the depth that can be installed in the lower part of the window is assumed to be about 80 mm, so the limit thickness that can be installed in the depth of 80 mm is d = 75 mm. Become.

As shown in FIG. 3, the heat dissipating element 12 is formed in the shape of a flat housing and is made of a resin such as polyethylene resin or polypropylene resin having excellent heat conduction efficiency, or a metal such as aluminum or stainless steel. When the internal latent heat storage material undergoes phase change, heat is radiated from the surface of the housing. The horizontal frame 14 as a support member includes a bottom portion 14A and a rising portion 14B. In the rising portion 14B, three pairs of groove portions 15 for housing the heat dissipating elements 12 are provided inside the rising portions 14B facing each other. Yes. A non-slip sheet (not shown) is attached to the lower surface of the horizontal frame 14 to ensure stability when installed on the floor surface.

The horizontal ends of the three heat dissipating elements 12 can be inserted into the three pairs of vertical grooves of the groove 15 and arranged in parallel. Of course, the number of heat dissipating elements 12 is not limited to three as in this embodiment, but is not limited to this, and the number of grooves can be increased or decreased, such as the size of the window surface (glass surface) 100 and the temperature change of the installation location. Is possible.
Further, the groove portion 15 is formed so that the lower portion thereof is positioned slightly above the bottom portion 14A, and when the heat dissipation element 12 is installed, the lower end of the heat dissipation element 12 and the bottom portion 14A The dimension of the groove portion 15 is set so that a gap 16 for taking in air is formed therebetween.

In addition, the groove part 15 may be provided with an insertion piece that can be fitted to the groove part 15 in the housing of the heat dissipation element 12 in addition to directly inserting the lateral end part of the heat dissipation element 12. It is also possible to form with a fine pitch so that the interval between the heat dissipating elements 12 can be finely adjusted. According to this, it becomes possible to finely adjust the heat radiation amount.

  In addition, when a plurality of layers of heat dissipating elements 12 are arranged in parallel to release the solidification latent heat of each heat dissipating element 12 uniformly, the temperature drop of the heat dissipating element located on the window side becomes the fastest due to the influence of the outside air temperature. Therefore, by setting the freezing point lower than that of the heat dissipating element arranged at the center or indoor side, it is possible to adjust the discharge time of the solidifying latent heat. That is, the release time and duration of solidification latent heat can be adjusted by combining a plurality of heat dissipation elements filled with latent heat storage materials having different freezing points.

FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2C, and shows the air flow between the heat storage heating device 10 and the window surface 100. As shown in the figure, when the heat storage and heating device 10 installed at the lower position of the window surface (glass surface) 100 is operated, heat is transferred from the heat dissipating element 12 to the surrounding air by natural convection or heat conduction. As a result, the air density of the portion is reduced, the draft works due to the difference in density with the room air, and the indoor air is drawn from the gap 16 between the lower end of the heat dissipating element 12 and the bottom 14A of the horizontal frame 14. take in. Then, while the air is warmed by convective heat transfer from the heat dissipating element 12, an upward air flow is continuously generated in the vicinity of the window surface 100, and the indoor air temperature in the vicinity of the window surface 100 is increased, thereby causing the window surface 100 to rise. It is designed to prevent condensation on the surface.

FIG. 5A is a schematic view showing a modification of the heat dissipating element used in the heat storage and heating device according to the present invention. The heat radiating element 20 shown in FIG. 5A (a) is provided with a transparent portion 22 that can visually check the state of the latent heat storage material filled therein so that the phase change of the latent heat storage material can be visually observed. It has become. As a result, when the latent heat storage material is a liquid, it can be determined that the heat storage state is present, while when the latent heat storage material is a solid state, it can be determined that the heat storage state is in a heat dissipation state. It can be used as a guide in doing. For example, in preparation for low temperatures in the morning, heat is stored using the remaining hot water of the bath or the solar heat of the sun.

In the heat dissipating element 30 shown in FIG. 5A (b), a handle 32 is provided on the upper portion thereof, and when the heat dissipating element 30 is moved, the handle 32 is used to facilitate carrying. In addition, since it is considered that the entire heat dissipation element 30 is hot after heat storage, for example, if the handle 32 is formed or covered using a material having low thermal conductivity, the heat dissipation element is conscious of the heat. It can be moved to the installation position of the horizontal frame 14 without contributing to the improvement of convenience.

FIG. 5B to FIG. 5D are diagrams showing modified examples of the heat storage and heating device, and among these, the heat storage and heating device 60 shown in FIG. 5B is an application example of the heat storage and heating device using a flat plate-like heat dissipation element. .
5B, (a) is a front view, (b) is a side view, (c) is a plan view, and (d) is a schematic perspective view showing a use situation. As shown in these drawings, the heat storage and heating device 60 includes a plurality of small heat radiating elements 62, and the heat radiating elements 62 are disposed side by side in parallel with the window surface 100 and installed in a rack 64. This heat storage and heating device 60 has a high degree of freedom with respect to the width direction (window width), and is effective when installed below a narrow window surface or a part of the window surface.

The heat storage and heating device 70 shown in FIG. 5C has a shape in which the heat dissipating elements 72 are arranged radially, FIG. 5C (a) is a perspective view showing the overall configuration, and (b) is a plan view of the rack 74 (supporting member). FIG. 4C is a plan view, a front view, and a side view of the heat dissipating element 72.
As shown in FIGS. 5C (a) and 5 (c), the heat dissipating element 72 of the heat storage and heating device 70 is formed by a casing extending in the radial direction and partially having a semicircular curved surface. A handle 72A is attached to the.
Each heat dissipating element 72 is supported by a rack 74 shown in FIG. 5C (b). For example, the heat dissipating element 72 can be installed on a side of a window surface, etc. It is.

FIG. 5D is a diagram showing a schematic configuration of a heat storage and heating device 80 using a heat radiating element formed in a rod shape. In the heat storage and heating device 80 of FIG. 5D, the heat dissipating elements 82A and 82B are formed in a bar shape and have a hexagonal shape in a plan view and a vertically long bar shape, and a plurality of heat dissipating elements 82A and 82B are alternately arranged in the height direction. Is arranged. That is, the heat storage and heating device 80 in FIG. 5D is a self-supporting heating device in which a plurality of rod-shaped heat dissipating elements 82 are combined and arranged in a honeycomb shape to form a vertical space 83 inside.
A vertical space 83 having a hexagonal shape in plan view formed by being surrounded by the heat dissipating elements 82A and 82B serves as a flow path of the rising air stream warmed by each element. Since the heat dissipating elements 82A and 82B arranged in the honeycomb shape are arranged so that the height directions are staggered, it is possible to stack a plurality of heat storage and heating devices 80 in the height direction. It can be installed and used in spaces that require a large amount of heat storage and heat dissipation, such as the windows in the lobby. In addition, in the heat storage and heating apparatus 80 shown in FIG. 5D, the shape of the heat dissipating element 82 is a hexagonal shape in plan view, but of course it is not limited to this and may be a polygonal shape other than a circle or a hexagon.

(Example)
In the heat storage and heating apparatus of the present embodiment, the key point is how to secure the heat dissipation amount of the heat dissipating element in which the latent heat storage material is enclosed. The heat dissipating amount is the height L, the thickness d, and the gap S of the heat dissipating element. It depends on the arrangement form. Therefore, the optimization of the dimensions and the like of the heat dissipating element was attempted by experiments and numerical analysis, and the results will be described.
FIG. 6 shows the height L, thickness d, and gap S in the heat dissipating element 40, and FIG. 7 is a graph showing the results of numerical analysis of the influence of various factors on the heat dissipation amount.
As shown in FIGS. 6 and 7, the maximum heat dissipation increases as the height L of the heat dissipating element 40 and the temperature difference between the surface temperature of the heat dissipating element and the room temperature (heating element temperature−room temperature) increase. It is understood that the optimum gap S between the heat dissipating elements 40 increases as the height L increases. For example, when the height L of the heat dissipating element 40 is 130 mm, its surface temperature is 30 ° C., and the room temperature is 20 ° C. (temperature difference 10 ° C.), the optimum clearance S is 9 mm and the maximum heat dissipating amount is about 144 (w / m). ² ). The following relationship is established between the height L of the heat dissipating element and the optimum gap S.
2 ≦ S ≦ 4.5 × L ^0.2 +5 to (1) formula

The grounds of the above-mentioned formula (1) are as follows.
Here, the lower limit of 2 mm is that when the practical minimum height L of the element enclosing the latent heat storage material is about 30 mm, when the gap S is less than 2 mm, the flow resistance of the air increases, and the amount of ascending airflow generated It is extremely reduced and the amount of heat necessary to prevent condensation cannot be obtained.
Further, the upper limit formula (4.5 × L ^0.2 +5) is a limit value at which the amount of heat release does not increase even if the gap S is further expanded. That is, it is a starting gap where the amount of heat release becomes saturated. Even if the gap is further widened, the depth of the apparatus is simply increased, and it is difficult to secure a space for placing the apparatus under the window frame.

Use of the heat storage and heating device 10 of the present embodiment configured as described above is performed as follows. First, with respect to the heat dissipating elements 12, 20, 30, 40, etc., an operation is performed in which the latent heat storage material is liquefied and stored using midnight power or unused energy (hot water such as hot water or bathtub water). At this time, the heat radiating element is removed from the horizontal frame, moved to a heat source, and immersed in a heat source such as waste water to store heat.
Then, after the predetermined time has elapsed, after the latent heat storage material has been liquefied and stored, a horizontal frame installed again at a location where the heat dissipation element is desired to prevent condensation, for example, a position below the window surface 100 on the indoor side. Insert into.

When the room temperature is high, the latent heat storage material enclosed in the heat dissipation element maintains a liquid state, but as the room temperature decreases from midnight to the morning, the temperature of the latent heat storage material itself also decreases. To go. When the room temperature falls below the freezing point of the latent heat storage material, the latent heat storage material starts to solidify and releases solidification latent heat. At this time, using the latent heat radiated from the surface of the heat dissipating element, as shown in FIG. 4, while the air below the window surface (glass surface) 100 is warmed, the indoor air is introduced from below the heat dissipating element 12. Then, the relative humidity is lowered by warming the air in the vicinity of the window surface 100 on the indoor side. Moreover, since the local air curtain is formed along the window surface 100, it becomes possible to prevent the dew condensation generated on the indoor window surface 100.

Thus, according to the heat storage and heating device 10 in the present embodiment, the heat dissipation element is filled with the latent heat storage material, and the phase change temperature is accurately set, so that the temperature decreases most around 4 o'clock in the morning. From about 7 to about 7 o'clock, the heat radiation time can be selected relatively easily to dissipate heat, so that it is possible to reliably prevent condensation on the glass surface in the morning where condensation is most likely to occur.
In addition, because the phase change temperature is set low, it is possible to use hot water drainage with a relatively low temperature as a heat source for heat storage, or hot water such as a bathtub, and the efficiency of unused energy Can be used effectively.

  In addition, a heat dissipating element with a freezing point (melting point) of 15 ° C to 20 ° C can be cooled with its latent heat of fusion by solidifying the latent heat storage material using river water, tap water, well water, etc. in summer. It becomes possible.

As described above, according to the present invention, it is possible to prevent condensation that occurs on the window surface in which large glass is fitted, and at the same time, it is possible to prevent downdraft due to cold air entering from the window, A reduction in heating costs can also be achieved.

100 Window surface (glass surface)
DESCRIPTION OF SYMBOLS 10 Heat storage heating apparatus 12 Radiation element 14 Horizontal frame 14A Bottom part 14B Rising part 15 Groove part 16 Cavity 20 Radiation element 22 Transparent part 30 Heat radiation element 32 Handle 40 Heat radiation element 50 Hybrid heat storage heating apparatus 52 52A Electric heater 54 Heat radiation element 56 Rack 60 Heat storage Heating device 62 Heat radiation element 64 Rack 70 Heat storage heating device 72 Heat radiation element 72A Handle 74 Rack 80 Heat storage heating device 82A 82B Heat radiation element 83 Vertical space 84 Handle

Claims (1)

In the heat storage and heating device comprising a heat dissipating element that is filled with a latent heat storage material and has a freezing point of the latent heat storage material in the range of 15 ° C to 65 ° C,
Utilizing solidification latent heat when the latent heat storage material undergoes a phase change from liquid to solid, the relative humidity of the air touching the indoor window glass with the rising airflow generated around the heat radiating element is reduced, and the window glass Suppresses temperature drop,
The heat dissipating elements are formed in a flat plate shape and arranged in parallel in two or more,
When the thickness of the heat dissipating element is d (mm), the relationship of 5 ≦ d ≦ 75 is satisfied, the height of the heat dissipating element is L (mm), and the clearance S (mm) of the heat dissipating element And satisfying the relationship of 2 ≦ S ≦ 4.5 × L ^0.2 +5 ,
The heat dissipating element includes a support member that is detachably mounted. The support member has at least a rising portion, and the rising portion is provided with a plurality of groove portions that are fixed in a state where the end portion of the heat dissipating element is inserted. The spacing between the grooves is formed with a fine pitch, and the gap S between the heat dissipating elements to be fixed can be finely adjusted.
When the heat dissipating element is installed on the support member, the lower part of the groove is formed at a slightly shifted position so that a gap is formed below the lower end of the heat dissipating element, and air is taken from the gap. A heat storage and heating device characterized by being made .

Images