JP4486437B2 - Building dehumidification system for easy maintenance - Google Patents

Description

  The present invention relates to a building dehumidification system that is easy to maintain. In particular, the present invention relates to a building dehumidification system that dehumidifies air with a dried dehumidifier.

Conventionally, a desiccant type air conditioner using a moisture absorbing action of a dehumidifying agent is known. For example, heated air is supplied to a rotating dehumidifying rotor, moisture in the dehumidifying rotor is evaporated with the heated air, and then exhausted to the outside. On the other hand, outdoor air is supplied to the dehumidifying rotor to be dehumidified. There is known a desiccant dehumidification system for supplying outdoor air into the room (for example, see Patent Document 1).
JP 2002-276998 A

  In a conventional desiccant dehumidifying system, when a driving unit such as a fan that blows air or a dehumidifying rotor is installed under a floor of a building, maintenance of the driving unit is difficult.

  Further, the temperature of the dehumidifying agent in the dehumidifying rotor and the dehumidifying rotor main body is increased by the heated air in the process of drying the dehumidifying agent. Therefore, when air for dehumidifying the room is supplied to the dehumidifying agent in the dehumidifying rotor or the dehumidifying rotor body whose temperature has risen, there is also a problem that the supply air temperature to the room increases.

  In order to solve such a problem, a building dehumidifying system according to the first aspect of the present invention includes a building and two dehumidifying agents provided under the floor of the building and provided to store the dehumidifying agent. Supply hot air to any one of the two intake pipes and the two intake pipes that lead the air from the outside of the building to the storage room and the dehumidifying agent storage room, and to dry the dehumidifier, A hot air supply destination switching unit provided outside the floor and a cold air having a temperature lower than that of the hot air are supplied to the other of the two intake pipes to dehumidify the air with the dried dehumidifying agent. Cooling air supply destination switching section provided, internal piping that guides air from the dehumidifying agent storage chamber supplied with cold air to the inside of the building, and exhaust that exhausts hot air that has passed through the dehumidifying agent storing chamber to the outside of the building And equipped with.

  Since the movable part of the building dehumidification system is provided outside the floor, maintenance of the movable part is easy. Moreover, since the dehumidifying agent storage chamber is provided under the floor of the building, dew condensation under the floor can be prevented by increasing the temperature under the floor. Moreover, the deterioration of the building due to condensation under the floor can be prevented. Moreover, when the air dehumidified by the dehumidifying agent in the dehumidifying agent storage chamber is supplied to the inside of the building, the dehumidifying agents in the other dehumidifying agent storing chambers can be dried.

  The building dehumidification system according to the present embodiment further includes an underground pipe provided below the floor of the building, and the internal pipe removes the air dehumidified by the dehumidifying agent stored in the dehumidifying agent storage chamber. After cooling in the basement using, guide to the inside of the building. For this reason, it is possible to reduce energy for cooling the air that has been dried by the dehumidifying agent and at the same time the temperature has increased.

  The building dehumidification system according to the present embodiment further includes a discharge destination switching unit that guides the hot air and the cold air that have passed through the dehumidifying agent storage chamber to any one of the internal piping or the exhaust unit, and the discharge destination switching unit is located outside the floor. Provided. For this reason, the maintenance of the discharge destination switching unit is easy. Moreover, the building dehumidification system in this embodiment further includes a blower fan that blows hot air and cold air inside the intake pipe to the dehumidifying agent storage chamber, and the blower fan is provided outside the floor. For this reason, maintenance of a ventilation fan is easy.

  The building dehumidification system in this embodiment further includes an internal direct pipe that guides the hot air and cold air that have passed through the dehumidifying agent storage chamber directly to the inside of the building without going through the basement. When dehumidifying the inside of an object, the cool air that has passed through the dehumidifying agent storage room is guided to the inside of the building using underground piping, and when the inside of the building is humidified, the warm air that has passed through the dehumidifying agent storage room To the inside of the building using internal direct piping. For this reason, when the inside of a building needs to be humidified, the humidified air can be supplied to the inside of a building.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  According to the present invention, since the movable part is provided outside the floor of the building, system maintenance is easy.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the development means of the invention.

  Drawing 1 is a figure showing an example of composition of building 42 provided with dehumidification system 30 concerning an embodiment of the present invention. An object of the present embodiment is to provide a building dehumidification system that can be easily maintained.

  The building dehumidification system 30 includes a building 42, a hot air generator 68, a cold air suction unit 74, a hot air supply destination switching valve 58, a cold air supply destination switching valve 48, and a plurality of intake pipes (44a to 44b). , Hereinafter collectively referred to as 44), a plurality of dehumidifying agent storage chambers (40a to 40b, hereinafter collectively referred to as 40), a plurality of discharge pipes (46a to 46b, hereinafter collectively referred to as 46), and a discharge destination. The switching unit 50, the internal pipe 54, the internal direct pipe 64, the underground pipe 66, the exhaust pipe 60, the exhaust part 56, the blower fan 52, the exhaust fan 53, the outside air suction fan 63, and the fuel cell 76. And a floor 70 and a wall 72. The building dehumidifying system 30 dehumidifies the inside of the building 42 using air dehumidified by the dehumidifying agent stored in the dehumidifying agent storage chamber 40 installed under the floor 70 of the building 42.

  The fuel cell 76 provides heat generated along with power generation to the hot air generator 68. The fuel cell 76 is, for example, a polymer electrolyte fuel cell (PEFC). The hot air generator 68 receives the exhaust heat of the fuel cell 76 by circulating cooling water for cooling the fuel cell 76. The hot air generator 68 warms the air outside the hot air generator 68 taken in by the outside air suction fan 63 with the cooling water received from the fuel cell 76. The hot air generator 68 supplies the air heated by the cooling water of the fuel cell 76 to the hot air supply destination switching valve 58. In this way, the warm air generator 68 generates warm air that warms the outside air to about 60 degrees and supplies the warm air to the warm air supply destination switching valve 58.

  The hot air supply destination switching valve 58 supplies the hot air supplied from the hot air generator 68 to any one of the intake pipes 44 in order to dry the dehumidifying agent stored in the dehumidifying agent storage chamber 40. The hot air supply destination switching valve 58 is provided outside the floor of the building 42.

  The cold air intake unit 74 includes a cold air intake fan 62 and supplies air outside the building 42 taken in by the cold air intake fan 62 to the cold air supply destination switching valve 48.

  The cold air supply destination switching valve 48 uses the hot air supply destination switching valve 58 to convert the air taken in from the cold air suction portion 74 to dehumidify the air using the dried dehumidifying agent stored in the dehumidifying agent storage chamber 40. The hot air is supplied to the other side of the intake pipe 44 that supplies hot air. The cold air supply destination switching valve 48 is provided outside the floor of the building 42.

  The intake pipe 44a and the intake pipe 44b connect the dehumidifying agent storage chamber 40a and the dehumidifying agent storage chamber 40b to the hot air supply destination switching valve 58 and the cold air supply destination switching valve 48, respectively. The intake pipe 44 guides air from the outside of the building 42 to each of the dehumidifying agent storage chambers 40. The blower fan 52 is provided in each of the intake pipes 44 and blows air inside the intake pipes 44 to the dehumidifying agent storage chamber 40. The blower fan 52 is provided outside the floor of the building 42.

  The dehumidifying agent storage chamber 40 stores a dehumidifying agent that dehumidifies air. Each dehumidifying agent storage chamber 40 is provided under the floor of the building 42. The dehumidifying agent is composed of, for example, silica gel or zeolite. The dehumidifying agent stored in the dehumidifying agent storage chamber 40 is dried (regenerated) by the air generated by the hot air generator 68 supplied via the intake pipe 44. Further, the dried dehumidifying agent stored in the dehumidifying agent storage chamber 40 dehumidifies the air that is taken in from the cold air suction unit 74 and supplied via the intake pipe 44.

  The air discharged from the dehumidifying agent storage chamber 40a and the dehumidifying agent storage chamber 40b is guided to the discharge destination switching unit 50 via the discharge pipe 46a and the discharge pipe 46b, respectively. The discharge destination switching unit 50 guides the air discharged from each dehumidifying agent storage chamber 40 to one of the exhaust pipe 60, the internal pipe 54, and the internal direct pipe 64. The discharge destination switching unit 50 is provided outside the floor.

  The discharge destination switching unit 50 includes a plurality of discharge destination switching valves (88a to 88b, hereinafter collectively referred to as 88). The discharge destination switching valve 88a and the discharge destination switching valve 88b connect the discharge pipe 46a and the discharge pipe 46b to any of the exhaust pipe 60, the internal pipe 54, and the internal direct pipe 64, respectively. In this way, the discharge destination switching unit 50 switches the connection destination of the discharge pipe 46 using the discharge destination switching valve 88, thereby discharging the air that has passed through the dehumidifying agent storage chamber 40 to the outside of the building 42. , Whether to supply to the inside of the building 42 is controlled. Further, when the air supplied from the discharge pipe 46 is supplied to the inside of the building 42, the discharge destination switching unit 50 supplies the air to the inside of the building 42 using the underground pipe 66 or the internal direct pipe 64. Used to control whether to supply directly to the inside of the building 42.

  The exhaust pipe 60 guides the air supplied from the discharge destination switching unit 50 to the exhaust unit 56. The exhaust unit 56 includes an exhaust fan 53. The air that has passed through the dehumidifying agent storage chamber 40 and led to the exhaust pipe 60 is exhausted to the outside of the building 42 by the exhaust fan 53. The exhaust fan 53 is provided outside the floor.

  The underground pipe 66 is provided further underground than below the floor of the building 42. The air supplied from the discharge destination switching unit 50 to the underground pipe 66 is cooled by the soil while passing through the underground pipe 66 and supplied to the internal pipe 54. The internal pipe 54 guides the air that has passed through the underground pipe 66 to the inside of the building 42.

  The internal direct piping 64 guides the air supplied from the discharge destination switching unit 50 directly into the building 42 without going through the underground.

  The internal pipe 54 and the internal direct pipe 64 are preferably arranged between the inner wall and the outer wall forming the wall 72 of the building 42. In this case, it is preferable that the internal piping 54 and the internal direct piping 64 are further disposed between the heat insulating material between the inner wall and the outer wall and the inner wall. By arranging in this way, it is possible to reduce the influence of the air inside the internal pipe 54 and the internal direct pipe 64 from the outside temperature before being supplied to each space of the building 42.

  As described above, the movable part of the building dehumidification system 30 includes the cold air intake fan 62, the outside air intake fan 63, the cold air supply destination switching valve 48, the hot air supply destination switching valve 58, the blower fan 52, and the discharge destination switching valve. 88 and the exhaust fan 53. Since these movable parts are all provided outside the floor of the building 42, system maintenance is easy.

  Also, a plurality of dehumidifying agent storage chambers 40 are provided, and an intake pipe 44 that guides air to each dehumidifying agent storage chamber 40 is connected, so that air dehumidified by the dehumidifying agent in the dehumidifying agent storage chamber 40 is constructed. When supplying the inside of the thing 42, the dehumidifying agent of the other dehumidifying agent storage chamber 40 can be dried. In addition, since the air dehumidified by the dehumidifying agent in the dehumidifying agent storage chamber 40 is guided underground after being cooled underground using the underground pipe 66, the air that has been dehumidified by the dehumidifying agent and at the same time the temperature has increased. The energy for cooling can be reduced.

  In addition, since the dehumidifying agent storage chamber 40 through which warm air passes is provided under the floor of the building 42, it is possible to prevent the under floor from condensing due to an increase in the temperature under the floor of the building 42. For this reason, deterioration of the building 42 due to condensation under the floor can be prevented.

  Further, the discharge destination switching unit 50 supplies the air that has passed through the dehumidifying agent storage chamber 40 to the inside of the building 42 using the underground piping 66 or directly into the building 42 using the internal direct piping 64. Since it is possible to switch the supply, when it is necessary to humidify the inside of the building 42, hot air that has absorbed moisture from the dehumidifying agent in the dehumidifying agent storage chamber 40 is supplied to the inside of the building 42. it can.

  In addition, after the dehumidifying agent in the dehumidifying agent storage chamber 40 is dried using the hot air generated by the hot air generator 68, the dehumidifying agent in the dehumidifying agent storing chamber 40 is used to start dehumidifying the air. It is preferable to set a cooling period during which the dehumidifying agent in the dehumidifying agent storage chamber 40, the intake pipe 44, and the discharge pipe 46 are cooled. Accordingly, it is possible to suppress an increase in the temperature of the air supplied to the inside of the building 42 due to the dehumidifying agent in the dehumidifying agent storage chamber 40, the intake pipe 44, and the exhaust pipe 46.

  In the building dehumidification system 30, the cold air supply destination switching valve 48, the hot air supply destination switching valve 58, and the discharge destination switching valve 88 are controlled according to the moisture absorption state of the dehumidifying agent in the dehumidifying agent storage chamber 40. The air conditioning demand inside the object 42 can be met.

  When the building dehumidifying system 30 dehumidifies the inside of the building 42, the hot air supply destination switching valve 58 has a hot air generator 68 in the dehumidifying agent storage chamber 40 in which the dehumidifying agent that needs to be regenerated is stored. The intake pipe 44 connected to the hot air generator 68 is switched so as to supply the hot air to be generated. Further, the cold air supply destination switching valve 48 supplies the cold air suction part 74 with air outside the building 42 to the intake pipe 44 connected to the dehumidifying agent storage chamber 40 in which a dehumidifying agent for dehumidifying the air is stored. The connected intake pipe 44 is switched. Further, the discharge destination switching valve 88 connected by the discharge pipe 46 to the dehumidifying agent storage chamber 40 to which the hot air is supplied is used to transfer the hot air after the dehumidifying agent in the dehumidifying agent storage chamber 40 is dried to the outside of the building 42. The exhaust pipe 46 and the exhaust pipe 60 are connected so as to be discharged. Further, the discharge destination switching valve 88 connected by the discharge pipe 46 to the dehumidifying agent storage chamber 40 to which the air taken in from the cold air suction part 74 is supplied is the air after being dehumidified by the dehumidifying agent in the dehumidifying agent storage chamber 40. The discharge pipe 46 and the underground pipe 66 are connected so that the pipe is cooled and then led into the building 42.

  When the building dehumidifying system 30 humidifies the inside of the building 42, the hot air supply destination switching valve 58 generates hot air in the dehumidifying agent storage chamber 40 in which the dehumidifying agent that needs to be regenerated is stored. The intake pipe 44 connected to the hot air generator 68 is switched so that the hot air generated by the device 68 is supplied. Further, the cold air supply destination switching valve 48 supplies the cold air suction part 74 with air outside the building 42 to the intake pipe 44 connected to the dehumidifying agent storage chamber 40 in which a dehumidifying agent for dehumidifying the air is stored. The connected intake pipe 44 is switched. Further, the discharge destination switching valve 88 connected by the exhaust pipe 46 to the dehumidifying agent storage chamber 40 to which the hot air is supplied guides the hot air after being humidified by the dehumidifying agent storage chamber 40 directly into the building 42. Thus, the discharge pipe 46 and the internal direct piping 64 are connected. The discharge destination switching valve 88 connected by the discharge pipe 46 and the dehumidifying agent storage chamber 40 to which the air taken in from the cold air intake part 74 is supplied is used to supply the air after humidifying the dehumidifying agent in the dehumidifying agent storage chamber 40. The discharge pipe 46 and the exhaust part 56 are connected so as to discharge to the outside of the building 42.

  FIG. 2 shows the state of the dehumidifying agent storage chamber 40, the hot air supply destination switching valve 58, the cold air supply destination switching valve 48, and the discharge destination switching valve 88 when the building dehumidifying system 30 performs the dehumidifying operation and the humidifying operation. It is a figure which shows an example. In the case where the building dehumidifying system 30 dehumidifies the inside of the building 42, the dehumidifying agent in the dehumidifying agent storage chamber 40a is in a state in which moisture in the air outside the building 42 can be absorbed, and the dehumidifying agent storing chamber 40b. When the dehumidifier is in a state that requires regeneration, the connection states of the hot air supply destination switching valve 58, the cold air supply destination switching valve 48, and the discharge destination switching valve 88 are as follows.

  The hot air supply destination switching valve 58 connects the hot air generator 68 and the intake pipe 44b to supply hot air to the dehumidifying agent storage chamber 40b. The cold air supply destination switching valve 48 connects the cold air suction part 74 and the intake pipe 44a so as to supply air from the cold air suction part 74 to the dehumidifying agent storage chamber 40a. Further, the discharge destination switching valve 88a connects the discharge pipe 46a and the underground pipe 66 so that the air dehumidified by the dehumidifying agent in the dehumidifying agent storage chamber 40a is cooled and then supplied to the inside of the building 42. Further, the discharge destination switching valve 88b connects the discharge pipe 46b and the exhaust pipe 60 in order to discharge the warm air after drying the dehumidifying agent stored in the dehumidifying agent storage chamber 40b to the outside of the building 42. .

  Further, for example, when the building dehumidifying system 30 humidifies the inside of the building 42, the dehumidifying agent in the dehumidifying agent storage chamber 40 a is in a state capable of absorbing moisture in the air outside the building 42. When the dehumidifying agent in the storage chamber 40b needs to be regenerated, the connection state of the hot air supply destination switching valve 58, the cold air supply destination switching valve 48, and the discharge destination switching valve 88 is as follows.

  The hot air supply destination switching valve 58 connects the hot air generator 68 and the intake pipe 44b to supply hot air to the dehumidifying agent storage chamber 40b. The cold air supply destination switching valve 48 connects the cold air suction part 74 and the intake pipe 44a so as to supply air from the cold air suction part 74 to the dehumidifying agent storage chamber 40a. In addition, the discharge destination switching valve 88b connects the discharge pipe 46b and the internal direct piping 64 so as to supply the hot air after being humidified by the dehumidifying agent stored in the dehumidifying agent storage chamber 40b directly into the building 42. Connecting. The discharge destination switching valve 88a connects the discharge pipe 46a and the exhaust pipe 60 in order to discharge the air humidified with the dehumidifying agent in the dehumidifying agent storage chamber 40a to the outside of the building 42.

  Thus, when the dehumidifying agent in one dehumidifying agent storage chamber 40 is dehumidifying the air passing through the dehumidifying agent storing chamber 40, the dehumidifying agent in the other dehumidifying agent storing chamber 40 is stored in the dehumidifying agent storage chamber. It is dried by the warm air passing through the chamber 40. Therefore, the dehumidification demand or the humidification demand for the building 42 can be continuously met.

  FIG. 3 is a diagram illustrating an example of the time development of the moisture absorption rate of the dehumidifying agent in the dehumidifying agent storage chamber 40. Lines 612 and 614 show an example of the time evolution of the moisture absorption rate of the dehumidifying agent stored in the dehumidifying agent storage chamber 40a and the dehumidifying agent storage chamber 40b, respectively. At time 0, the dehumidifying agent in the dehumidifying agent storage chamber 40a is in the process of dehumidifying the air passing through the dehumidifying agent storage chamber 40a. At time 0, the dehumidifying agent in the dehumidifying agent storage chamber 40b is in the process of being dried by the hot air passing through the dehumidifying agent storage chamber 40a. When the dehumidifying agent in the dehumidifying agent storage chamber 40a reaches a predetermined first moisture absorption rate (time t1), the hot air supply to the dehumidifying agent storage chamber 40b is controlled by controlling the hot air supply destination switching valve 58. Stop supplying. Further, when the dehumidifying agent in the dehumidifying agent storage chamber 40a reaches a predetermined second moisture absorption rate (time t2), the hot air supply destination switching valve 58 is controlled to control the dehumidifying agent storage chamber 40a. Start supplying wind. At the same time, by controlling the cold air supply destination switching valve 48, the supply of air from the cold air suction portion 74 to the dehumidifying agent storage chamber 40b is started.

  Further, when the dehumidifying agent in the dehumidifying agent storage chamber 40b reaches the first moisture absorption rate of a predetermined moisture absorption rate (time t3), the dehumidifying agent storage chamber 40a is controlled by controlling the hot air supply destination switching valve 58. Stop supplying hot air to the unit. Furthermore, when the dehumidifying agent in the dehumidifying agent storage chamber 40b reaches the second moisture absorption rate of the predetermined moisture absorption rate (time t4), the dehumidifying agent storage chamber is controlled by controlling the hot air supply destination switching valve 58. The supply of warm air is started at 40b. At the same time, by controlling the cold air supply destination switching valve 48, the supply of air from the cold air suction portion 74 to the dehumidifying agent storage chamber 40a is started.

  In this way, when the moisture absorption rate of the dehumidifying agent in the dehumidifying agent storage chamber 40 dehumidifying the air from the cold air suction part 74 reaches the predetermined first moisture absorption rate, the other dehumidifying agent storage chamber 40 By stopping the supply of hot air to the air, the dehumidifier in the dehumidifying agent storage chamber 40 that has been supplying the hot air, the intake pipe 44 and the exhaust pipe 46 are cooled, and then the air that dehumidifies the interior of the building 42 is removed. Can be supplied. Thereby, the rise in the temperature of the air supplied to the inside of the building 42 can be suppressed. Further, in order to dehumidify the inside of the building 42 when the moisture absorption rate of the dehumidifying agent in the dehumidifying agent storage chamber 40 dehumidifying the air from the cold air suction portion 74 reaches a predetermined second moisture absorption rate. By supplying the air taken in from the cold air suction portion 74 to the other dehumidifying agent storage chamber 40 that stores the already dried dehumidifying agent, the dehumidifying demand of the building 42 can be continuously met.

  Further, the building dehumidification system 30 may regenerate the dehumidifying agents in the plurality of dehumidifying agent storage chambers 40 in advance when it is not necessary to dehumidify the inside of the building 42. The building dehumidifying system 30 may include three or more dehumidifying agent storage chambers 40. In this case, it is possible to regenerate the dehumidifying agents in other dehumidifying agent storage chambers 40 in advance while dehumidifying the inside of the building 42 using the dehumidifying agent in one dehumidifying agent storage chamber 40. As a result, as the demand for dehumidification of the building 42 increases, the amount of moisture per hour that the dehumidifying agent in the dehumidifying agent storage chamber 40 absorbs moisture from the air taken in from the cold air suction part 74 is dehumidified in the dehumidifying agent storage chamber 40. Even when the amount of moisture absorbed by hot air is less than the amount of moisture per hour, the inside of the building 42 is dehumidified using the dehumidifying agent in the dehumidifying agent storage chamber 40 that has been regenerated in advance. Can do.

  As is clear from the above description, according to the present embodiment, the plurality of dehumidifying agent storage chambers 40 for storing the dehumidifying agent are provided under the floor of the building 42, and the intake pipe 44 is provided in each of the dehumidifying agent storage chambers 40. Lead the air to. The hot air supply destination switching valve 58 supplies hot air to any one of the intake pipes 44 in order to dry the dehumidifying agent in the dehumidifying agent storage chamber 40. The cold air supply destination switching valve 48 supplies air outside the building 42 having a temperature lower than that of the hot air to the other side of the intake pipe 44 in order to dehumidify the air with the dried dehumidifying agent. Accordingly, the dehumidifying agent stored in the other dehumidifying agent storage chamber 40 while dehumidifying the inside of the building 42 by supplying air dried using the dehumidifying agent stored in the dehumidifying agent storage chamber 40. Can be played.

  The internal piping 54 guides the air dehumidified by the dehumidifying agent stored in the dehumidifying agent storage chamber 40 to the inside of the building 42 after being cooled underground using the underground piping 66, so that it is simultaneously dried by the dehumidifying agent. The energy for cooling the air whose temperature has risen can be reduced.

  The internal direct piping 64 guides the air that has passed through the dehumidifying agent storage chamber 40 directly into the building 42 without going through the underground. Further, when the interior of the building 42 is dehumidified, the discharge destination switching unit 50 uses the underground pipe 66 to convert the air taken in from the cold air suction unit 74 that has passed through the dehumidifying agent storage chamber 40 into the building 42. Lead inside. When the inside of the building 42 is humidified, the hot air generated by the hot air generator 68 that has passed through the dehumidifying agent storage chamber 40 is guided to the inside of the building 42 using the internal direct piping 64. In this way, the building dehumidifying system 30 allows the air humidified by the dehumidifying agent in the dehumidifying agent storage chamber 40 to pass through the internal direct piping 64 even when the inside of the building 42 needs to be humidified. 42 can be supplied inside.

  According to the building dehumidification system 30 described in the present embodiment, the movable part is provided outside the floor, so that system maintenance is easy.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements are also included in the technical scope of the present invention.

An example of the structure of the building dehumidification system 30 which concerns on embodiment of this invention is shown. An example of the states of the dehumidifying agent storage chamber 40, the hot air supply destination switching valve 58, the cold air supply destination switching valve 48, and the discharge destination switching valve 88 when the building dehumidifying system 30 performs the dehumidifying operation and the humidifying operation is shown. An example of the time development of the moisture absorption rate of the dehumidifying agent in the dehumidifying agent storage chamber 40 is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 30 ... Dehumidification system of a building, 40 ... Dehumidifying agent storage room, 42 ... Building, 44 ... Intake pipe, 46 ... Discharge pipe, 48 ... Cold-air supply destination switching valve, 50 ... Discharge destination switching unit, 52 ... Blower fan, 53 ... Exhaust fan, 54 ... Internal piping, 56 ... Exhaust unit, 58 ... Hot air supply destination switching valve, 60 ... Exhaust piping, 62 ... cold air suction fan, 63 ... outside air suction fan, 64 ... internal direct piping, 66 ... underground piping, 68 ... hot air generator, 70 ... floor, 72 ... wall, 74 ... cold air suction part, 76 ... fuel cell, 88 ... discharge destination switching valve

Claims (5)

Two dehumidifying agent storage rooms provided below the floor of the building and provided to store the dehumidifying agent;
Two intake pipes for guiding air from the outside of the building to each of the dehumidifying agent storage chambers;
A hot air supply destination switching unit provided outside the building for supplying hot air to any one of the two intake pipes to dry the dehumidifying agent;
A cold air supply destination switching unit provided outside the building for supplying cold air having a temperature lower than that of the hot air to the other of the two intake pipes in order to dehumidify the air with the dried dehumidifying agent;
Underground piping provided in the basement further below the floor of the building;
An internal pipe for guiding the cold air dehumidified by the dehumidifying agent stored in the dehumidifying agent storage chamber supplied with the cold air to the inside of the building after being cooled in the basement using the underground pipe;
An internal direct pipe that guides the warm air and the cool air that have passed through the dehumidifying agent storage chamber directly to the inside of the building without passing through the underground,
An exhaust section for exhausting the warm air that has passed through the dehumidifying agent storage chamber to the outside of the building ;
A discharge destination switching unit that guides the warm air and the cold air that have passed through the dehumidifying agent storage chamber to any one of the internal pipe, the internal direct piping, and the exhaust unit ;
The discharge destination switching unit is provided outside the building, and when dehumidifying the inside of the building, the cold air that has passed through the dehumidifying agent storage chamber is converted into the inside of the building using the underground pipe. The building dehumidifying system guides the warm air that has passed through the dehumidifying agent storage chamber to the inside of the building using the internal direct pipe when the inside of the building is humidified. A blower fan that blows the warm air and the cool air inside the intake pipe to the dehumidifying agent storage chamber;
The blowing fan, buildings dehumidification system according to claim 1 provided outside of the building.   The internal pipe and the internal direct pipe are arranged between a heat insulating material between an inner wall and an outer wall forming a wall of the building, and the inner wall.
The building dehumidification system according to claim 1 or 2.   A fuel cell that generates electricity and generates heat;
  A hot air generator for generating the hot air by heating air from outside the building with cooling water for cooling the fuel cell and supplying the hot air to the hot air supply switching unit;
The building dehumidification system according to any one of claims 1 to 3, further comprising:   The building dehumidification system according to any one of claims 1 to 4, further comprising the building.

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