JP5002339B2 - Ventilation system for buildings having a ventilation layer in the outer wall - Google Patents

Description

  The present invention relates to a building ventilation system having a ventilation layer in an outer wall.

  When ventilating inside the building, the outside air is taken in directly from outside, or in the building adopting the basic insulation method, ventilation is performed using cold air under the floor in summer or warm air under the floor in winter. Things have been done.

JP 2003-185207 A

  However, the temperature of the outside air varies greatly depending on the season and the time of the day, and hot air enters the room in the summer, while cold air enters the room in the winter. If the fluctuation of the indoor temperature due to ventilation is large, the load on the fluctuation of the indoor temperature of the air conditioner also becomes large, the power consumption increases, and the capacity of the air conditioner to be set must be large.

  In view of the above-described problems, the present invention can suppress indoor air fluctuation, reduce the burden on an air conditioner, and reduce power consumption by selecting an optimal location for introducing air for ventilation. It is an object of the present invention to provide a ventilation system for a building having a ventilation layer in the outer wall wall.

  In summer, it is generally known that the temperature under the floor is lower than the outside air, but the inventor measured and examined the temperature of each part of the building having a ventilation layer inside the outer wall. In the winter, especially during the daytime in winter, he found the fact that the temperature of the ventilation layer in the outer wall was higher than that of the outside air. The present invention has been made based on this fact.

The above problem is a ventilation system for a building having a ventilation layer in the outer wall,
An underfloor air intake that takes in the air under the floor into the room,
An outside air supply port for taking outside air into the room,
A ventilation layer air inlet for taking in the air of the ventilation layer in the outer wall body into the room is provided,
Under the floor, outside air, temperature sensors that measure the temperature of each part of the ventilation layer in the outer wall wall are provided, respectively.
Based on temperature information detected by a temperature sensor that measures the temperature of each part, the control unit is configured to select an optimal air introduction position from among the underfloor air supply port, the outside air supply port, and the ventilation layer air supply port. It is solved by a building ventilation system characterized by

  According to the ventilation system of this building, the underfloor air intake port that takes in the air under the floor, the outside air intake port that takes in the outside air into the room, and the ventilation layer air intake port that takes in the air of the ventilation layer inside the outer wall wall into the room The control means for selecting the optimum air introduction location based on the temperature information detected by the temperature sensor that measures the temperature of each part from any of the above, selects the optimum air introduction location and introduces air. It is possible to suppress air fluctuations in the room due to the above, reducing the burden on the air conditioner and reducing power consumption.

In the above solution,
The setting of the control means can be switched between hot air and cold air,
When set to hot air, the air with the highest temperature is selected from the underfloor air inlet, the outside air inlet, and the vent layer air inlet based on the temperature information detected by the temperature sensor that measures the temperature of each part. Air is introduced from the introduction point,
When cold air is set, the lowest temperature of the air is introduced from the underfloor air inlet, outside air inlet, and vent layer air inlet based on the temperature information detected by the temperature sensor that measures the temperature of each part. Air is introduced from the location,
It should be made possible.

  Since the setting of the control means can be switched between hot air and cold air, an underfloor air inlet for taking in air under the floor, an outdoor air inlet for taking outside air into the room, and a ventilation layer in the outer wall body Based on the temperature information detected by the temperature sensor that measures the temperature of each part from one of the ventilation layer air intake ports that take in the air into the room, ventilation that has a low impact on the indoor temperature environment can be performed, It is possible to more effectively suppress indoor air fluctuations due to ventilation, thereby reducing the burden on the air conditioner and reducing power consumption.

  Since the present invention is as described above, by selecting an optimal location for introducing air for ventilation, it is possible to suppress fluctuations in the indoor air due to ventilation, reduce the burden on the air conditioner, and reduce power consumption. It is possible to provide a ventilation system for a building having a ventilation layer in the outer wall.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  In the ventilation system 1 of a building having a ventilation layer in the outer wall shown in FIGS. 1 and 2, 2 is a building, 3 is an outer wall, 4 is a foundation, 5 is a first floor, 6 is a second floor, and 7 is a room. , 8 is the outside.

  The outer wall 3 of the building 2 has an outer wall ventilation layer 9 through which air passes. The ventilation of the air to the outer wall ventilation layer 9 of the outer wall 3 is taken in from an air intake 10 provided at the boundary between the lower end portion of the outer wall 3 and the foundation 4, passes through the outer wall ventilation layer 9 inside the outer wall 3, From the outer wall of the first floor to the outer wall of the second floor, it is discharged to the eaves part 18.

  The outer wall 3 is provided with a ventilation layer air inlet 11 for taking in the air in the outer wall ventilation layer 9 into the room, one on each of the first and second floors of the building 2.

  On the outer wall 3, an outside air supply port 12 for taking in air from the outside 8 into the room is provided on each of the first and second floors of the building 2.

  The floor surface 5 on the first floor of the building 2 is provided with an underfloor air inlet 14 for taking in air in the underfloor space 13 into the room. The floor surface 6 on the second floor is provided with a vent hole 15 communicating with the room 7 on the first floor.

  As in the control means shown in FIG. 2, the air inlets 11, 11, the outside air inlets 12, 12, and the underfloor air inlet 14 are each supplied with an air inlet by a signal from a control unit described later. An opening / closing means (not shown) for freely opening and closing the door is provided so that the intake of air from each part can be controlled.

  The air inlets of the ventilation layer air inlets 11 and 11, the outside air inlets 12 and 12, and the underfloor air inlet 14 are opened and closed by the control means as follows. A temperature sensor 16 for measuring the temperature of each part of the outside 8, the outer wall ventilation layer 9, and the underfloor space 13 is provided, and the temperature of each part measured by each temperature sensor 16 is sent to the control unit 17. The control unit 17 determines opening / closing of the air intake ports of each part based on the sent temperature information and a preset condition of hot air or cold air, and opens / closes the air intake ports of each part by the opening / closing means.

For example, when the condition is set to warm air in advance, the air from the highest temperature among the temperatures of the respective parts of the ventilation layer air inlets 11, 11, the outside air inlets 12, 12, and the underfloor air inlet 14 is changed. In order to introduce, control is performed to open the air supply port at the highest temperature and close the other air supply ports.
On the other hand, when the condition is set to cold air in advance, air is introduced from the lowest temperature among the temperatures of the respective parts of the ventilation layer air inlets 11, 11, the outside air inlets 12, 12, and the underfloor air inlet 14. Therefore, control is performed to open the air supply port at the lowest temperature and close the other air supply ports.

  In FIG. 3, the ventilation layer air inlets 11 and 11 are opened, the outside air inlets 12 and 12 and the underfloor air inlet 14 are closed, and the air in the outer wall ventilation layer 9 is ventilated through the ventilation layer air inlets 11 and 11. Shows the situation.

  According to the present embodiment, any one of the underfloor air inlet for taking in the air under the floor, the outside air inlet for taking in the outside air into the room, and the ventilation layer air inlet for taking in the air in the ventilation layer in the outer wall body into the room. Thus, the air can be introduced by selecting the optimum air introduction location by the control means for selecting the optimum air introduction location based on the temperature information detected by the temperature sensor that measures the temperature of each part. In the case of a building having a ventilation layer in the outer wall body as in this embodiment, in the winter, especially in winter, the air in the outer wall wall is warmer than the outside air due to the fact that the temperature of the ventilation layer is higher than the outside air. Since it can be taken into the room, fluctuations in the room air due to ventilation can be suppressed, and the burden on the air conditioner can be reduced and the power consumption can be reduced.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the ventilation layer supply port 11 and the outside air supply port 12 are installed on different wall surfaces has been described. However, the ventilation layer supply port 11 and the outside air supply port 12 are provided on the same wall surface. May be. In addition, a control valve that can select or close the air from the outer wall ventilation layer 8 and the air from the outside air 8 by using a common air supply port leading to the indoor side at that time may be provided.

  Moreover, there is no restriction | limiting in particular in the opening / closing method by the control means of each supply port, The ventilation method may be passive ventilation, and the active ventilation which served as the opening and closing by a fan may be sufficient.

  In addition, the air intake port for taking in air is not limited to any one of the underfloor air supply port, the outside air supply port, and the ventilation layer air supply port, and may be ventilated at two locations depending on the environment. You may ventilate using all three locations.

  Further, in the above embodiment, only the case where the setting condition of the control means is the setting of hot air and cold air is shown. However, the setting condition for the control means may be provided in multiple stages, or the reference temperature setting Control may be performed so as to optimize the indoor environment at a low load in relation to the temperature of the room.

  The object of the present invention is to take advantage of the fact that the temperature of the ventilation layer in the outer wall wall is higher than the outside air in the winter, especially in the winter day of the building having a ventilation layer in the outer wall wall, which has not been noticed until now. It is based on the use, and it is to ventilate using the optimal air from the underfloor space, the outside, and the outer wall ventilation layer.

It is a figure which shows the implementation condition of this invention, Comprising: It is a cross-sectional side view which shows the condition which is ventilating at each air supply port. It is explanatory drawing which shows the structure of the control means of this invention. It is a figure which shows the implementation condition of this invention, Comprising: It is a cross-sectional side view which shows the condition which is ventilating with a ventilation layer air inlet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Building ventilation system 2 ... Building 7 ... Indoor 8 ... Outside 9 ... Outer wall ventilation layer 11 ... Ventilation layer air inlet 12 ... Outside air inlet 13 ... -Underfloor space 14 ... Underfloor air supply port 16 ... Temperature sensor 17 ... Control means

Claims (2)

A building ventilation system having a ventilation layer in the outer wall,
An underfloor air intake that takes in the air under the floor into the room,
An outside air supply port for taking outside air into the room,
A ventilation layer air inlet for taking in the air of the ventilation layer in the outer wall body into the room is provided,
Under the floor, outside air, temperature sensors that measure the temperature of each part of the ventilation layer in the outer wall wall are provided, respectively.
Based on temperature information detected by a temperature sensor that measures the temperature of each part, the control unit is configured to select an optimal air introduction position from among the underfloor air supply port, the outside air supply port, and the ventilation layer air supply port. Building ventilation system characterized by. The setting of the control means can be switched between hot air and cold air,
When set to hot air, the air with the highest temperature is selected from the underfloor air inlet, the outside air inlet, and the vent layer air inlet based on the temperature information detected by the temperature sensor that measures the temperature of each part. Air is introduced from the introduction point,
When cold air is set, the lowest temperature of the air is introduced from the underfloor air inlet, outside air inlet, and vent layer air inlet based on the temperature information detected by the temperature sensor that measures the temperature of each part. Air is introduced from the location,
The building ventilation system according to claim 1.

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