JP2555186B2 - Heat exchange ventilation equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to heat exchange ventilation equipment. More particularly, the present invention relates to an improved heat exchange ventilation facility that is easy to install and that minimizes the space required for duct piping.

(Prior Art) With the recent improvement and popularization of sash structures and heat insulating structures, airtightness and heat insulating properties of general residential buildings have been remarkably improved. Along with this, attention has been paid to ventilation in the entire area of the building, and various measures have been taken from the viewpoint of air circulation in the entire area of the building.

Attempts have also been made to combine this circulation with cooling and heating.

As an attempt to ventilate the entire indoor area, for example, there is a heat exchange ventilation facility as shown in FIG.

This equipment takes in fresh air from the outside, heats it by exchanging heat with indoor exhaust air using a heat exchanger (a), and then supplies air indoors through a duct (c) by a blower fan (a). . The fresh and warm air that has been supplied circulates into each room through the corridor, stairs, etc., and through the exhaust duct (e) from the inlet (d) on the ceiling and the floor on the first floor. It leads to the heat exchanger (a) and exhausts to the outside.

In this case, exhaust from particularly dirty toilets is also exhausted intensively by the exhaust duct (e).

For example, the heat exchange ventilation equipment that can be exemplified as described above is practically attracting attention in terms of supplying fresh air to the entire indoor area, exhausting dirty air, and utilizing heat of the exhaust air. .

(Problems to be Solved by the Invention) However, some problems to be improved remain in such conventional heat exchange equipment.

One of the problems is that in these conventional heat exchange facilities, it is necessary to connect the exhaust duct (e) to the suction port (d) of each room. However, it is often difficult to guide the exhaust duct (e) to all the rooms in the current state of housing construction where a very large space above the ceiling cannot be formed. Further, in the case of a 2 × 4 house or the like, its construction is particularly difficult. Moreover, the installation of these ducts has the drawback of increasing the material and construction costs.

Therefore, even in a narrower space above the ceiling, it is possible to perform highly efficient heat exchange ventilation for the entire indoor area, and at the same time, it is possible to reduce material and construction costs. Realization of facilities was desired.

The present invention has been made in view of the above circumstances, and provides a low-cost heat exchange ventilation facility that does not require the labor of duct piping and can be installed even in a narrow piping space. Has an aim.

(Means for Solving the Problems) As a solution to the above problems, the present invention provides a heat exchange ventilation facility using an indoor space as an air circulation path, in which indoor exhaust air from each room intake port is distributed to the space above the ceiling. (EN) A heat exchange ventilation facility characterized in that a ductless exhaust passage is formed and a duct suction port is provided at or near an equilibrium point of the air volume from each chamber suction port.

(Operation) In the facility of this invention, the exhaust duct is
Since the space above the ceiling is used as the exhaust path without being guided by, the installation of the duct piping system can be minimized. Moreover, the intake port of the exhaust duct is provided at or near the equilibrium point where the inflow air volume from each room intake port is balanced, so that the air intake from the specific intake port and its external exhaust are not biased. Therefore, the balance for air circulation throughout the room is not destroyed.

(Example) Next, the heat exchange ventilation equipment of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 shows an example of the present invention as corresponding to FIG. 4 described above.

As shown in this example, in the facility of the present invention, for example, the heat exchanger (1), the blower fan (2), the exhaust fan (3), and the blower duct (4) provided at appropriate places such as the space above the ceiling. ), And an exhaust duct (5) for exhausting particularly dirty toilets and the like, and a central exhaust duct (6) for centrally collecting exhaust from each room.

In this equipment, outside fresh air (A) is heat-exchanged with indoor exhaust in the heat exchanger (1) to be warmed,
The blower fan (2) and the blower duct (4) blow out from a predetermined place in the building. The outlet (7) for this blowout is provided at a position suitable for allowing the air to flow through the corridor, door, etc. to the indoor area. The air circulated in the room by this blow-off air supply is 1
It is guided to the space above the ceiling (9) through a suction port (8) provided on the ceiling and the floor of the second floor. Of course, if necessary,
These suction ports (8) may be provided on the wall surface to allow the exhaust gas to flow into the space above the ceiling.

In addition, a conventional exhaust duct is not connected to the suction port (8). In the ductless state, the air flowing into the back of the ceiling is collected from the suction port (10) in the central exhaust duct (6). The recovered air is guided to the heat exchanger (1) through the exhaust fan (3) and is discharged (B) to the outside.

At this time, the central exhaust duct (6) is provided at or near the equilibrium point where the amount of inflow air from the suction port (8) of each room is balanced as a whole of the space above the ceiling.
FIG. 2 illustrates this installation state as a plan view.

As shown in FIG. 2, the suction inlet (10) of the central exhaust duct (6) has the exhaust suction inlets (8a) (8b) (8c) of each chamber.
It will be installed at a position where the airflow from (8d) into the space above the ceiling is balanced and constantly balanced. By doing so, the amount of air from a specific inflow path does not become too large and the air circulation balance in the entire area of the room is destroyed.

1 and 2, the heat exchanger (1), the blower fan (2) and the exhaust fan (3) are installed in the space above the ceiling (9), but the toilet, the washroom If it is installed in the vicinity, the duct work will be less. It may be installed in other places depending on the size of the space above the ceiling.
In the above-ceiling space (9), only the ventilation duct (4) and the central exhaust duct (6) may be provided.

In any of the construction situations, it is possible to significantly reduce the labor, material cost and construction cost involved in the conventional duct piping construction.

If it is necessary to prevent the generation of wind noise at the suction port (8) of each room and to prevent the sound in the room from leaking to other places by making it ductless, the suction with a muffling function You may install a grill. This suction grill may be, for example, as shown in FIG. 3, using a sound deadening pipe (11) formed of glass wool or the like.

Needless to say, the details of the facility of the present invention can be changed.

(Effects of the Invention) As described in detail above, according to the present invention, the ventilation performance equivalent to that of the conventional equipment is realized, the labor of duct construction is significantly reduced, and it is applicable to a building with a narrow space above the ceiling. be able to.

Also, the material and construction costs of the duct are significantly reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a plan view thereof. FIG. 3 is a cross-sectional view illustrating a suction grill with a sound deadening function. FIG. 4 is a sectional view showing a conventional example. 1 ... Heat exchanger 2 ... Blower fan 3 ... Exhaust fan 4 ... Blower duct 5 ... Exhaust duct 6 ... Centralized exhaust duct 7 ... Blowout port 8 ... Suction port 9 ... Ceiling space 10 ... … Suction port 11 …… Muffing pipe

Claims (1)

(57) [Claims] 1. In a heat exchange ventilation facility using an indoor space as an air circulation path, a ductless exhaust path is formed to allow indoor exhaust air from each room intake port to flow into the space above the ceiling, and the air volume from each room intake port is balanced. A heat exchange ventilation facility characterized in that a duct suction port is provided at or near the point.