JP3124419B2 - Ventilation system for building heat reservoir space - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the space behind a hut in a building such as a hotel or office having a hut space on the top floor, or a heat pool space such as the upper part of an atrium or a top light, or a house. A ventilation system for a heat reservoir space in a building that ventilates a heat reservoir space under the floor (these spaces are collectively referred to as a heat reservoir space in a building in the present invention). The present invention relates to a ventilation system for a heat reservoir space.

[0002]

2. Description of the Related Art In a building having a heat reservoir space as described above, the temperature of the heat reservoir space becomes high especially in summer,
Therefore, there is a problem that the indoor living environment is deteriorated by radiation from the ceiling surface to the room, and the cooling load is thereby increased. Therefore, a method is generally adopted in which a natural ventilation port that communicates with the outside air is installed in the heat storage space, and hot air in the heat storage space is removed by natural convection.

[0003]

However, in the case where a natural ventilation port that communicates with the outside air is installed in the heat storage space as in the prior art, although it has the effect of removing the hot air in the heat storage space in summer, Conversely, in winter, cold air from outside air is drawn into the heat accumulation space to lower the temperature of the ceiling surface. For this reason, there is a problem that causes an increase in the indoor heating load. In particular, this tendency is remarkable in a building in a cold region.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. In a building having a heat storage space, ventilation in the heat storage space can be performed only at a high temperature. It is an object of the present invention to provide a ventilation system for a heat reservoir space of a building, which can improve comfort of a living space in a building and can reduce an air conditioning load in the living space.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a ventilation system for a heat reservoir space of a building according to the present invention is provided at least on a diagonal line of the heat reservoir space of the building or at least two places above and below the space. Provide ventilation openings.

[0006] The ventilation opening is connected to an extension duct from a supply duct and a re- duct of an air conditioning facility or a mechanical ventilation facility in the building.

[0007] Further, the temperature in the heat reservoir space is sensed at the ventilation port, and when the temperature is equal to or higher than an opening set temperature, the ventilation port is opened.

Similarly, when the temperature is equal to or lower than the set closing temperature,
A self-powered ventilation damper device for closing is arranged.

The present invention has the following operational effects by the ventilation system having the above configuration.

[0010]

The ventilation system for a heat reservoir space of a building according to the present invention is constructed as described above. When the temperature in the heat reservoir space exceeds a set temperature, the self-powered ventilation damper device is opened, The hot air in the heat storage space can be ventilated from the vent. Therefore, when the inside of the heat reservoir space becomes hot in summer or the like, the hot air can be ventilated,
If the temperature inside the heat reservoir is lower than the set temperature in winter etc.
Since the self-powered ventilation damper device keeps the ventilation port closed, it is possible to prevent cold air from being drawn into the heat reservoir space from outside air.

The self-powered ventilation damper device is opened and closed by a damper opening / closing mechanism that opens and closes the damper using a wax whose volume expansion changes according to temperature or a shape memory alloy spring whose shape changes according to temperature as a driving source. It can be operated without the need for power.

[0012] Furthermore, in the case of ventilation, when the ventilation opening is provided on the outer wall of the building, natural ventilation can be performed in the heat reservoir space by natural convection directly using the outside air. Alternatively, in the case of being connected to an extension duct such as a supply duct of a mechanical ventilation facility and a retentate duct, forced ventilation in the heat reservoir space can be performed by forced ventilation by an air conditioning facility or a mechanical ventilation facility.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIGS. 1 to 3 are diagrams each showing a configuration of a ventilation system for a heat reservoir space of a building. FIG. 1 is a system configuration diagram in the case of natural ventilation, and FIGS. 2 and 3 are systems of different examples in a case of forced ventilation. 4 to 6 are configuration diagrams of different examples of the self-powered ventilation damper device.

At the back of the ceiling of the living space 2 on the top floor of the building 1, a space behind the hut serving as a heat reservoir space 3 is provided. FIG.
In the example of the natural ventilation system shown in FIG. 1, a ventilation port 4 is provided on the outer wall of the building 1 forming the heat reservoir space 3. The vents 4 are desirably provided at at least two places on the diagonal line of the outer wall or above and below the space in order to enhance the natural ventilation effect, and the specific configuration of these vents 4 is shown in FIGS. A self-operated ventilation damper device 5 which senses the temperature in the heat reservoir space 3 and opens when the temperature is equal to or higher than a set temperature.
Is installed. Although the self-powered ventilation damper device 5 will be described later, the natural ventilation effect can be further enhanced by using the self-powered ventilation damper device 5 as a shutter system to increase the ventilation area of the ventilation port 4.

In the case of a building having air conditioning equipment or mechanical ventilation equipment, in the case of a forced ventilation system in which the heat reservoir space 3 is ventilated by using supply ducts and retentate ducts of the air conditioning equipment or mechanical ventilation equipment of the building, As shown in FIG. 2, extension ducts 9 and 1 extending from the supply duct 7 and the return duct 8 of the air-conditioning equipment or mechanical ventilation equipment of the building for air-conditioning or ventilation of the living space 2 and the bathroom 6 into the heat reservoir space 3.
0 is provided, and the open end thereof is used as the ventilation port 4, and the self-powered ventilation damper device 5 described above is installed in the ventilation port 4. in this case,
In order to enhance ventilation efficiency, it is necessary to arrange the extension duct 9 extending from the supply duct 7 and the extension duct 10 extending from the retan duct 8 as far as possible from each other and on both sides of the heat reservoir space 3. desirable.

FIG. 3 shows another example of the forced ventilation system. This example is the same as the example shown in FIG. 2 in that the supply duct 7 and the urethane duct 8 of the air conditioning equipment or the mechanical ventilation equipment of the building are used, but the air supply to the heat storage space 3 is performed in the living space. This is performed by an extension duct 11 extending from one of the bath rooms 6 to the heat storage space 3, and exhaust air from the heat storage space 3 is extended through an extension duct 12 extended from the heat storage space 3 to another bath room 6. After once going to the bath room 6, the ventilation duct 8 is used for ventilation, and the extension duct 11 is connected to the extension duct 11 from the bath room 6 in which the extension duct 11 is extended. , 12 open to the interior of the heat reservoir space 3 as ventilation ports 4, respectively, and the self-powered ventilation damper device 5 described above is installed in the ventilation ports 4. In addition, a self-operated ventilation damper device 5 is provided in the urethane duct 8 connected in the middle of the extension duct 11.
A self-powered ventilation damper device 13 that operates in the opposite direction to that described above is provided.

In the system shown in FIG. 3, since the air in the living space 2 is used for ventilation of the heat storage space 3, there is no need to increase the air volume of the entire system, and the system shown in FIG. It is more economical than As described above, it is desirable that the extension ducts 11 and 12 be disposed on both sides of the heat reservoir space 3.

Next, the configuration of the self-powered ventilation damper device 5 will be described. The one shown in FIG. 4 uses a wax (gel-like viscous body) whose volume expands and changes according to temperature, and has a damper opening / closing mechanism 14 that opens and closes a damper using the wax as a drive source. Outer cylinder 1 to be mounted on
5, a damper 17 that is rotatably installed in the damper outer cylinder 15 via a rotation shaft 16 and opens and closes the damper outer cylinder 15.
A pinion gear 18 mounted on one end of the rotating shaft 16, a cylinder 19 installed on the outer periphery of the damper outer cylinder 15, a piston 20 sliding in the cylinder 19, and a wax 21 sealed in the cylinder 19, A rack 22 coupled to the piston 20 and engaged with the pinion gear 18;
It comprises a setting adjuster 23 for adjusting the initial setting position of the piston 20 by increasing or decreasing the amount of the wax 21 and adjusting the opening / closing temperature of the damper 17, and stoppers 24 and 25.

Since the wax 21 expands in proportion to the ambient temperature, the opening area of the damper 17 can be adjusted according to the load. Further, the damper outer cylinder 15 and the damper 17 are round,
Any shape may be used, and when the size is large, a plurality of dampers 17 may be provided so as to interlock with each other.

The one shown in FIG. 5 uses a wax (gel-like viscous material) whose volume expands and changes depending on the temperature, similarly to the one shown in FIG.
8 and a rack 22, a damper opening / closing rod 26 is attached to one end of the rotating shaft 16.
A damper closing spring 27 is connected to one end, and a push stay 28 is provided at the other end, and a piston plate 29 coupled to the piston 20 is brought into contact with the push stay 28 to constitute a damper opening / closing mechanism 30. .

In this embodiment, as the wax 21 expands due to an increase in the ambient temperature, the piston 20 is moved, and the push stay 28 is pushed to open the damper 17. On the other hand, when the temperature drops and the piston plate 29 returns, the damper 17 is closed by the damper closing spring 27. The opening set temperature of the damper 17 can be changed depending on the type of the setting controller 23 or the wax 21.

FIG. 6 shows another embodiment of the self-powered ventilation damper device 5, which uses a shape memory alloy spring whose shape changes according to temperature and uses the shape memory alloy spring as a drive source to open and close the damper. With an opening and closing mechanism 31;
A spring mounting stay 32 is mounted on one end of the rotating shaft 16, and a pair of shape memory alloy springs 34 and 35 are provided between both ends of the spring mounting stay 32 and the bracket 33. This is the same as the embodiment.

In this case, when the ambient temperature rises and becomes equal to or higher than the set temperature, the shape memory alloy spring 34 has a spring shape, and conversely, the shape memory alloy spring 35 has changed from a spring shape to a wire shape. Is rotated 90 degrees, the damper 17 is opened, and when the ambient temperature falls below the set temperature, the damper 17 operates in a reverse manner to the above.
Operates to be in a closed state. The set temperature can be arbitrarily changed and adjusted by using a shape memory alloy spring corresponding thereto.

Further, the shape memory alloy spring 34 may be an ordinary coil spring. In this case, the spring constant needs to be smaller than that of the shape memory alloy spring 35. The fulcrum of the springs 34 and 35 and the shape and mounting position of the spring mounting stay 32 can be changed to other parts as long as the above operation is performed.
And the number of dampers 17 to be installed can be appropriately changed within the scope of the above-described embodiment.

As described above, various embodiments of the self-powered ventilation damper device 5 can be used. On the other hand, the self-powered ventilation damper device 13 used in the forced ventilation system shown in FIG. 90 to the damper 17
By adopting a configuration in which they are staggered, a device similar to the self-powered ventilation damper device 5 described above can be used.

According to each of the above-described embodiments, the temperature in the heat reservoir space 3 rises in summer or the like, and the damper opening / closing mechanisms 14, 30, 3 in the self-powered ventilation damper device 5 are used.
1, the damper 17 is rotated and released by a change in volume expansion of the wax 21 or a change in the shape of the shape memory alloy springs 34, 35, and the hot air in the heat reservoir space 3 passes through the ventilation port 4, and In the example of FIG. 2, natural ventilation is performed by natural convection, and in the examples of FIGS. 2 and 3, forcible through the supply duct 7 and the return duct 8 and the extension ducts 9, 10, 11, and 12 of the air conditioning system or the mechanical ventilation system of the building. Ventilated.

On the other hand, when the temperature in the heat storage space 3 is equal to or lower than the set temperature in winter or the like, ventilation is not performed because the self-powered ventilation damper device 5 is closed, and cool air is taken into the heat storage space 3. The space 3 functions as a heat reservoir space. Therefore, it is possible to remove the hot air in the heat storage space 3 in the summer and at the same time to prevent the inflow of cool air into the heat storage space 3 in the winter, so that the air conditioning load due to the influence of heat radiation from the ceiling surface into the living space can be reduced. Increase can be prevented,
The comfort of the living space in the building can be improved, and the power required for air conditioning can be reduced to save energy.

[0028]

As described above, according to the ventilation system for a heat reservoir space of a building according to the present invention, in a building having a heat reservoir space, ventilation in the heat reservoir space can be performed only at high temperatures. Therefore, heat radiation from the ceiling surface can be reduced throughout the year regardless of summer or winter.
Therefore, it is possible to improve the comfort of the living space and save energy by reducing the air conditioning load. Further, since a special power source is not required as a ventilation system, an economical system can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a ventilation system for a heat reservoir space of a building according to the present invention, and is a configuration diagram showing an example of a natural ventilation system.

FIG. 2 is a diagram illustrating a ventilation system for a heat reservoir space of a building according to the present invention, and is a configuration diagram illustrating an example of a forced ventilation system.

FIG. 3 is a diagram showing a ventilation system for a heat reservoir space of a building according to the present invention, and is a configuration diagram showing another example of a forced ventilation system.

FIG. 4 is a configuration diagram of a self-powered ventilation damper device used in a ventilation system for a heat reservoir space of a building according to the present invention, (A).
Is a longitudinal sectional view, and (B) is a right side view thereof.

FIG. 5 is a configuration diagram of another self-powered ventilation damper device used for a ventilation system for a heat reservoir space of a building according to the present invention;
(A) is a longitudinal sectional view, and (B) is a right side view thereof.

FIG. 6 is a configuration diagram of another self-powered ventilation damper device used for a ventilation system for a heat reservoir space of a building according to the present invention;
(A) is a longitudinal sectional view, and (B) is a right side view thereof.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Building 2 Living space 3 Heat accumulation space 4 Ventilation opening 5, 13 Self-powered ventilation damper device 6 Bath room 7 Supply duct 8 Retentate duct 9, 10, 11, 12 Extension duct 14, 30, 31 Damper opening / closing mechanism 15 Damper outer cylinder 16 Rotating shaft 17 Damper 18 Pinion gear 19 Cylinder 20 Piston 21 Wax 22 Rack 23 Setting adjuster 24, 25
Stopper 26 Damper opening / closing rod 27 Damper closing spring 28 Push stay 29 Piston plate 32 Spring mounting stay 33 Bracket 34, 35 Shape memory alloy spring

Claims (1)

(57) [Claims] 1. A ventilation hole is provided at at least two places on a diagonal line of a heat reservoir space of a building or above and below the space, and the ventilation hole is extended from a supply duct and a retan duct of an air conditioning system or a mechanical ventilation system in the building. In addition to connecting to the duct, the ventilation port senses the temperature in the heat reservoir space and opens the ventilation port when the temperature is equal to or higher than the set opening temperature, and opens the ventilation port when the temperature is equal to or lower than the closing setting temperature. A ventilation system for a heat reservoir space in a building, wherein a closed self-powered ventilation damper device is arranged.