JPH02282642A - Equipment for heat exchange-ventilation - Google Patents

Abstract

PURPOSE:To save the trouble of laying ducts, enable installing heat exchange- ventilation equipment in a limited piping space, and thus reduce the cost of the equipment by forming ductless passageways for the air-discharge for passing through the space of a ceiling the indoor air discharged through inlets from indoor spaces and by providing an inlet into a duct at the location where the flows of air from the inlets in the indoor spaces assume an equilibrium or at a location near it. CONSTITUTION:Fresh air A from the outside is warmed by heat exchange at a heat exchanger 1 with the air discharged from indoor spaces, conveyed by an air-feed fan 2 and by an air-feed duct 4, and sent into the indoor spaces from a specified spot in a building. The air thus supplied circulates through indoor spaces and then flows into a ceiling 9 through inlets 8 provided, for example, in the surface of the ceiling in the first story and in the floor in the second story. The inlets 8 are not connected with discharge ducts; the air flowing into the ceiling 9 is collected into a main discharge duct 6 through an inlet 10. The air thus collected is conveyed by an air-discharge fan 3 to the heat exchanger 1 and then discharged to the outside. The main discharge duct 6 is provided at the location where the flows of air drawn in through the inlets 8 from the indoor spaces assume an equilibrium, or a balance, in the ceiling as a whole or at a location near it.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to heat exchange ventilation equipment. More particularly, the present invention relates to an improved heat exchange ventilation system that is easy to install and that minimizes the space requirements for ducting.

(Prior Art) In recent years, with the improvement and spread of sash structures and heat insulation structures, the airtightness and heat insulation properties of ordinary residential buildings have been significantly improved. Along with this, attention has also been paid to ventilation throughout the interior of buildings, and various measures have been taken from the viewpoint of air circulation throughout the interior of the building.

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

As an attempt to ventilate the entire indoor area, there is a heat exchange ventilation system as shown in FIG. 4, for example.

This equipment sucks fresh air from outside, heats it by exchanging heat with indoor exhaust air using a heat exchanger (a), and then supplies the air indoors from an air supply port through a duct (x) using a blower fan (b). . The fresh and warmed air is
It circulates into each room through hallways, stairs, etc., and is led to the heat exchanger (A) through the exhaust duct (O) from the inlet (1) on the ceiling of the first floor and the floor of the second floor, and then exhausted to the outdoors. are doing.

In this case, exhaust air from particularly dirty toilets and the like is also intensively exhausted through the exhaust duct (E).

For example, heat exchange ventilation equipment, which can be exemplified in this way, is attracting attention from a practical point of view in terms of supplying fresh air to the entire indoor area, exhausting dirty air, and utilizing heat from the exhaust air. .

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

One of the issues is that in these conventional heat exchange equipment, it is necessary to connect the exhaust duct (E) to the suction port (1) of each room, and the piping construction of this exhaust duct (E) is difficult. It takes a lot of effort to do so, and in the current state of housing construction where it is not possible to create very large attic spaces, it is often difficult to route exhaust ducts (e) to all rooms.

Furthermore, construction is particularly difficult in the case of a 2x4 house or the like. Moreover, the installation of these ducts also had the disadvantage of not increasing the material and construction costs.

For this reason, heat exchange ventilation using an improved air circulation system enables highly efficient heat exchange ventilation throughout the indoor space even in a narrower attic space, and also reduces material and construction costs. It was hoped that the facility would be realized.

This invention was made in view of the above circumstances, and aims to provide a low-cost heat exchange ventilation equipment that does not require the hassle of duct piping and can be installed even in a narrow piping space. The purpose is

(Means for Solving the Problems) The present invention solves the above problems by distributing indoor exhaust air from the inlets of each room to the attic space in a heat exchange ventilation system that uses an indoor space as an air circulation path. To provide heat exchange ventilation equipment, which is characterized by forming a ductless exhaust passage and providing a duct suction port at or near the equilibrium point of fijl from the suction port of each room.

(Function) In the equipment of the present invention, the attic space is used as an exhaust path without leading the exhaust duct to each indoor room, so the installation of the duct piping system can be minimized. Furthermore, by providing the suction ports of the exhaust duct at or near the equilibrium point where the inflow air volume from the suction ports of each room is balanced, the ventilation is not biased depending on the air inflow from a specific suction port and its external exhaust. It also does not upset the balance of air circulation throughout the room.

(Example 1) Next, the heat exchange ventilation equipment of the present invention will be explained in more detail with reference to the attached drawings.

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

As shown in this example, the equipment of the present invention includes a heat exchanger (1), a blower fan (2), an exhaust fan (3), and a blower duct (4) installed at an appropriate location, such as in the attic space. ), and also includes an exhaust duct (5) for exhausting air from particularly dirty toilets, etc., and a centralized exhaust duct (6) for centrally collecting exhaust from each room.

In this equipment, outside fresh air (A) is heated by exchanging heat with indoor exhaust air in a heat exchanger (1), and is blown from a predetermined location in the building through a blower fan (2) and a blower duct (4). I'm trying to get it out. The air outlet (7) for blowing air is provided at a suitable position to allow air to circulate throughout the room through the hallway, door, etc.

The air that has been circulated in the room by this blown air supply is guided to the attic space (9) through suction ports (8) provided on the ceiling of the first floor, the floor of the second floor, and the like. Of course, if necessary, these suction ports (8) may be provided on the wall surface to allow exhaust gas to flow into the attic space.

Note that the suction port (8) is not connected to a conventional exhaust duct. In the ductless state, air flowing into the attic is collected through the suction port (10) into the central exhaust duct (6). The recovered air is guided to the heat exchanger (1) via the exhaust fan (3) and discharged to the outside.

At this time, the centralized exhaust duct (6) is connected to the suction port (8) of each chamber.
) should be installed at or near an equilibrium point where the inflow air volume from the attic space is balanced as a whole. FIG. 2 is a plan view illustrating this installed state.

As shown in FIG. 2, the suction port (lO) of the centralized exhaust duct (6) is the exhaust suction port of each chamber (8a>(8b)(
8c) Install at a position where the amount of air flowing into the attic space from (8d) is balanced and steady. By doing this, the air volume from a particular inflow path will not become too large and disrupt the balance of air circulation throughout the room.

In the examples shown in Figures 1 and 2, the heat exchanger (1), ventilation fan (2), and exhaust fan (3) are located in the attic space (
9) Although it is installed inside the building, if it is installed near the toilet or washroom, less duct work will be required.

Depending on the size of the attic space, it may be installed in other locations. Only the ventilation duct (4) and the central exhaust duct (6) may be provided in the attic space (9).

In either construction situation, it is possible to significantly reduce the labor, material costs, and construction costs associated with conventional duct piping construction.

In addition, by making it ductless, each room has a suction port (8).
If it is necessary to prevent wind noise from occurring in a certain area or to prevent indoor sounds from leaking to other areas, a suction grill with a noise-reducing function may be installed. 3
As shown in the figure, a sound deadening pipe (11) made of glass wool or the like may be used.

Of course, it goes without saying that various details of the equipment of this invention are possible (effects of the invention). In addition, the effort required for duct construction is greatly reduced, making it possible to accommodate buildings with narrow attic space.

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

[Brief explanation 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 an example of a suction grill with a silencing 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 Vagina 6...Common exhaust duct 7...Outlet 8 ...Suction port
Part 9...Attic space 10...Suction port 11...Sound-reducing pipe agent Patent attorney Toshio Nishizawa Diagram

Claims (1)

[Claims] (1) In heat exchange ventilation equipment that uses an indoor space as an air circulation path, a ductless exhaust path is formed that circulates indoor exhaust from the inlet of each room to the attic space, and the equilibrium point of the air volume from the inlet of each room or A heat exchange ventilation system characterized by having a duct suction port provided near the duct suction port.