JP6101006B2 - Indirect heat storage wall system - Google Patents

Description

  The present invention relates to an indirect heat storage wall system that stores heat from sunlight and warms indoor space of a building.

  In a building, a sunny room can obtain a considerable amount of heat by solar radiation even in the winter, and becomes very hot during the day. Thus, a system has been proposed that uses heat storage walls to store heat from solar radiation and uses the heat stored in the heat storage walls for nighttime heating and the like.

  However, in a system using a heat storage wall, it is not possible to store all the heat generated by solar radiation, and heat may be released from the heat storage wall to the outside as the outside air temperature decreases. On the other hand, in a building, for example, a room around water such as a washroom or a toilet placed on the north side where the sun does not reach may be difficult to obtain the benefits of solar radiation.

  Therefore, Patent Document 1 describes a technique of recovering heat from warm air using a heat exchanger and using the recovered heat for heating and hot water supply when exhausting warm air warmed inside the roof sash. .

Japanese Patent Laid-Open No. 61-213445

  However, as described in Patent Document 1, when heat is recovered using a heat exchanger, if a large amount of heat is to be recovered, the amount of exhaust air needs to be increased, and the power consumption of the fan increases. The energy saving effect decreases (heat recovery efficiency decreases), and the cost for installing the heat exchanger increases.

  Therefore, the present invention solves such problems of the prior art, and an object thereof is to provide an indirect heat storage wall system that can effectively use heat generated by solar radiation with a simple configuration.

In order to solve the above problems, an indirect heat storage wall system according to the present invention includes a non-lighting room, a glass window provided in an opening of a building outer wall, and a glass window having a predetermined distance from the glass window. A heat storage wall arranged so as to face the window surface, a space between the glass window and the heat storage wall is a closed space, and a daylighting room in which the indoor side is a room side space from the heat storage wall is closed An air circulation device that circulates air from the space toward the non-lighting chamber, the daylighting chamber is provided on the upper floor than the non-lighting chamber , and the non-lighting chamber is supplied from the closed space by the air circulation device. The room-side space is directly warmed by the heat stored in the heat storage wall.

  In this invention, the surplus heat that could not be stored in the heat storage wall can be supplied from the closed space to the non-lighting chamber by the air circulation device, and the thermal environment of the non-lighting chamber can be improved. Thus, the heat from solar radiation can be effectively utilized with a simple configuration.

Further, a circulation duct that connects the non-lighting chamber and the closed space is further provided , one end of the circulation duct is connected to the floor opening of the closed space, and the other end of the circulation duct is connected to the non-lighting space. It is preferable to be connected to the ceiling opening of the room . In this case, air can be circulated between the non-lighting chamber and the closed space using the circulation duct, and the thermal environment in the non-lighting chamber can be improved efficiently.

  The air circulation device is preferably provided with a switch for reversing the air flow direction. By operating this switch and reversing the air flow direction, for example, in summer, the temperature of the closed space can be reduced by supplying the closed space with air in a non-lighted room in which the rise in temperature is suppressed due to no daylighting. The rise can be suppressed.

  According to the present invention, heat from solar radiation can be effectively used with a simple configuration.

It is a figure which shows the longitudinal cross-section of the building to which the indirect type thermal storage wall system was applied.

  Hereinafter, preferred embodiments of an indirect heat storage wall system according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the building X to which the indirect heat storage wall system 1 is applied is a two-story building, and includes a lighting room 10, a non-lighting room 20, an air circulation device 30, and a circulation duct 40. It is comprised including. In this embodiment, an example in which the indirect heat storage wall system 1 is applied to a two-story building X is shown as an example, but the present invention can also be applied to a building other than a two-story building.

  The daylighting room 10 is provided on the second floor of the building X. The daylighting room 10 is used as a living room such as a living room. The daylighting chamber 10 is provided with a glass window 11, a heat storage wall 12, and a shielding wall 13. The glass window 11 is provided in the opening of the outer wall of the closed space Z. Sunlight is guided into the daylighting chamber 10 by the glass window 11.

  The heat storage wall 12 has a predetermined distance from the glass window 11 and is arranged to face the window surface of the glass window 11. As the heat storage wall 12, a plurality of panels made of ALC (Autoclaved Light-weight Concrete) can be used. In addition, the black coating is given to the surface of the outdoor side (glass window 11 side) of the thermal storage wall 12 to the ALC substrate. Thereby, the condensing efficiency of the sunlight which injected into the outdoor side surface of the thermal storage wall 12 can be improved.

  The daylighting chamber 10 is partitioned by a heat storage wall 12 and a shielding wall 13 into a closed space Z on the outdoor side of the heat storage wall 12 and a room-side space Y on the indoor side of the heat storage wall 12. The closed space Z is formed between the glass window 11, the heat storage wall 12, and the shielding wall 13, and is closed (partitioned) with respect to other spaces.

  The heat storage wall 12 is warmed by sunlight that reaches the heat collecting surface of the heat storage wall 12 through the glass window 11. The heat storage wall 12 has a heat storage function and can store heat. The room-side space Y is warmed by the heat stored in the heat storage wall 12.

  The non-lighting room 20 is provided on the first floor portion of the building X. The non-lighting room 20 is used as a room for surrounding water such as a washroom and a toilet. In addition, the non-lighting room 20 is provided in a position that is recessed from the position of the outer wall on the second floor of the building X to the inside of the building X, and is a room that is difficult to obtain the benefits of solar radiation.

  In addition, the positional relationship and use of the lighting room 10 and the non-lighting room 20 mentioned above are examples, and are not limited to this.

  The air circulation device 30 includes a heat transfer duct 31, a fan 32, a heat transfer duct 33, and a switch 34. The heat transfer ducts 31 and 33 have a structure through which air can flow.

  One end of the heat transfer duct 31 opens into the closed space Z, and the other end is connected to the fan 32. One end of the heat transfer duct 33 opens into the non-lighting chamber 20, and the other end is connected to the fan 32.

  The fan 32 circulates air between the closed space Z and the non-lighting chamber 20 through the heat transfer ducts 31 and 33. A switch 34 is connected to the fan 32. By the switching operation by the switch 34, the fan 32 switches between the air flow from the closed space Z into the non-lighting chamber 20 and the air flow from the non-lighting chamber 20 to the closed space Z.

  The circulation duct 40 connects the non-lighting chamber 20 and the closed space Z so that air can flow.

  Next, the operation of the air circulation device 30 and the air flow will be described. For example, during the winter daytime, the fan 32 is operated to supply the air in the non-lighting chamber 20 from the closed space Z. In this case, surplus heat that cannot be stored by the heat storage wall 12 when sunlight enters the heat storage wall 12 can be supplied into the non-light-collecting chamber 20 by the air circulation device 30. Thereby, the temperature in the non-lighting chamber 20 can be raised.

  Further, since the inside of the non-lighting chamber 20 and the closed space Z are connected by the circulation duct 40, air is circulated between the inside of the non-lighting chamber 20 and the closed space Z when the fan 32 is operated. Can do.

  Further, for example, when it is desired to suppress the temperature rise of the daylighting chamber 10 in summer or the like, the air in the non-daylighting chamber 20 is supplied to the closed space Z by the fan 32 by operating the switch 34. In this case, the air in the non-light-collecting chamber 20 that is less likely to receive the benefits of solar radiation and whose temperature rise is suppressed can be supplied to the closed space Z. Thereby, the temperature rise in the lighting room 10 is suppressed.

  The present embodiment is configured as described above, and excess heat that cannot be stored in the heat storage wall 12 can be supplied from the closed space Z into the non-light-collecting chamber 20 by the air circulation device 30. The thermal environment can be improved. Thus, the heat from solar radiation can be effectively utilized with a simple configuration.

  In addition, by providing the circulation duct 40 that connects the non-lighting chamber 20 and the closed space Z, air can be circulated between the non-lighting chamber 20 and the closed space Z. The environment can be improved efficiently.

  Further, by providing the switch 34 for reversing the air flow direction, air can be supplied from the non-lighting chamber 20 to the closed space Z by the air flow device 30. In this case, for example, in summer, the air in the non-lighting chamber 20 in which the rise in temperature is suppressed due to no daylighting can be supplied to the closed space Z, the temperature in the closed space Z rises, and further in the daylighting chamber 10 Temperature rise can be suppressed.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, although ALC is used as the heat storage wall 12, other materials may be used.

  Further, a temperature sensor may be provided in the daylighting chamber 10 or the non-daylighting chamber 20, and the air flow direction by the fan 32 may be automatically switched according to the room temperature detected by the temperature sensor.

  Further, the installation position of the fan 32 and the switch 34, the shape of the heat transfer ducts 31 and 33, and the shape of the circulation duct 40 are not limited to those shown in FIG.

  DESCRIPTION OF SYMBOLS 1 ... Indirect type thermal storage wall system, 10 ... Daylighting room, 11 ... Glass window, 12 ... Thermal storage wall, 20 ... Non-lighting room, 30 ... Air circulation device, 34 ... Switch, 40 ... Duct for circulation, X ... Building, Z ... closed space.

Claims (3)

A non-lighting room,
A glass window provided in an opening of an outer wall of the building, and a heat storage wall disposed to face the window surface of the glass window with a predetermined distance from the glass window, and the glass window A space between the heat storage wall is a closed space, a daylighting room in which the indoor side is a room side space than the heat storage wall, and
An air circulation device for circulating air from the enclosed space toward the non-lighting chamber;
With
The daylighting room is provided on an upper floor than the non-daylighting room,
The indirect heat storage wall system, wherein the non-light-collecting chamber is heated by air supplied from the closed space by the air circulation device, and the room-side space is directly heated by heat stored in the heat storage wall. A circulation duct connecting the non-lighting chamber and the closed space is further provided , one end of the circulation duct is connected to a floor opening of the closed space, and the other end of the circulation duct is The indirect heat storage wall system according to claim 1, wherein the indirect heat storage wall system is connected to a ceiling opening of the non-lighting room .   The indirect heat storage wall system according to claim 1, wherein the air circulation device is provided with a switch that reverses an air circulation direction.

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