JPH01239324A - Heat exchanging ventilating heating facility - Google Patents

Abstract

PURPOSE:To eliminate installation limitations about piping for an air supply and exhaust air duct and cost-related problems, by allowing an under-floor space and/or an attic space to form a hot air circulation passage. CONSTITUTION:A heater 3 and a heat exchanger 4 are installed under the floor or in the attic. The hot air discharged from the heater 3 blows out to a first floor well or into a room near the staircase from a blowout port 6, and the hot air discharged from such spaces as corridor, stairways, and well is arranged to circulate through each room from an ventilation port 7 of each room. The air is sucked up an under-floor space 1 and an attic space 2 from an indoor suction port 8. The hot air introduced into the attic 2 and returned from the circulation of the space, is induced into the under-floor space 1 by way of a communication passage 9 which connects the attic 2 to the under-floor space 1. Fresh air sucked from the open air exchanges heat with the returned hot air by a heat exchanger 4, and is mixed with the returned hot air. The mixed air is arranged to circulate through each room as a hot air while part of the hot air is discharged into the open air after its heat exchange.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to heat exchange ventilation and heating equipment.

More specifically, this invention relates to a new and improved heat exchange ventilation/heating system that is as effective as whole-house ventilation and floor heating, and does not have construction restrictions or cost problems associated with duct piping. It is something.

(Conventional technology) In recent years, not only public facilities, factories, business offices, etc.
BACKGROUND ART The central heating system that centrally heats all rooms such as living rooms, kitchens, bathrooms, etc. in ordinary residential buildings is gradually starting to run counter to it.

On the other hand, as the airtightness of houses has increased due to Satsushi W4 construction, etc., it has become necessary to provide sufficient ventilation indoors, so various measures to systematically ventilate and heat indoors have been studied. It's coming.

For example, as shown in Figure 9, as equipment for efficient indoor heating, an air conditioner/heater (A) and a blower fan (B) are installed near the outdoors under the ceiling or inside the outer wall.
Warm the outdoor air through this air conditioner/heater (A),
It is known that air is then supplied into the room through an air supply duct. In addition, attempts have been made to provide exhaust ducts in this equipment to centralize the exhaust air.

(Problems to be Solved by the Invention) However, these conventional heating equipment or ventilation/heating equipment have some serious obstacles and problems.

The first and foremost problem is that with conventional equipment,
It is necessary to install a tact to circulate warm air to each room indoors. Most conventional housing structures do not have enough space to accommodate such ductwork, and even in 2x4 homes, there is no space for such duct piping.

Even if there is room for duct piping indoors, on walls, in the ceiling, etc., construction work associated with duct piping is severely restricted by the narrow housing structure, and the degree of freedom in construction is extremely limited. ing. Moreover, the material and construction costs will be large.

Furthermore, the circulation of hot air through these ducts involves narrow ducts that circulate hot air through complicated routes, resulting in extremely large reductions in air volume due to duct pressure loss, resulting in large energy losses in hot air.

In addition, in the case of such conventional equipment, as is clear from Figure 9, most of the exhaust air from the room is in the form of natural exhaust, and indoor ventilation is not good, causing hot air to flow through the room. The degree of utilization of thermal energy is not high.

In order to perform this exhaustion smoothly and to facilitate the installation of supply/exhaust ducts, a heat exchanger (work) is installed in the ceiling, as shown in Figure 10, and the outside air is heated by the air conditioner heating l1l (a). Heat exchange ventilation heats the room, supplies air into the room through an air supply duct (2), collects the air from the room into an exhaust duct (2) in the attic, exchanges heat in a heat exchanger, and exhausts the air outdoors. Heating equipment is also being considered.

However, in this case as well, there is almost no space for duct piping under the ceiling, making it virtually impossible to install duct piping, and even if it were possible, there would be significant construction and cost constraints, and any In conventional equipment that uses ducts, the rotational noise of equipment such as fans inevitably travels through the ducts and generates unpleasant noise.

(Means for Solving the Problems) This invention was made in view of the above-mentioned circumstances, and solves the problems of conventional ventilation and heating equipment, and solves the restrictions on piping construction of air supply and exhaust ducts and the cost. The purpose of the present invention is to provide a new heat exchange ventilation/heating equipment that has almost no problems with ventilation of the entire house and has the same effect as floor heating.

To achieve this objective, the present invention provides an underfloor and/or
Alternatively, a heat exchanger tfA ventilation/heating facility is provided in which a hot air circulation path is formed using the space under the attic as a passage.

Furthermore, the present invention also provides an effective aspect of equipment for forming a hot air circulation path using an underfloor and/or attic space as a passage.

(Function) By using the space under the floor and/or the ceiling as an indoor hot air circulation path, the space constraints and construction costs for conventional duct piping are significantly alleviated, and, moreover,
Since it uses underfloor heating and ceiling heating, it heats a wide area indoors and provides a mellow floor heating effect.The heating effect continues even when the heater is stopped, due to the heat storage in the underfloor and ceiling spaces. Improve the efficiency of thermal energy use.

Furthermore, in the heat exchange ventilation/heating equipment of the present invention in which the space under the floor and/or the ceiling is used as a circulation path for hot air, the pressure loss due to tact is reduced, the flow of hot air is increased, and the space under the floor and/or the ceiling is Warm air flows throughout the entire area, suppressing local heating, which prevents shrinkage and deformation of joists, joists, etc. due to overdrying.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the heat exchange ventilation and heating equipment of the present invention will be described in more detail with reference to the drawings showing embodiments of the present invention.

(Example) Fig. 1 shows an example of the heat exchange ventilation @ room equipment of the present invention. In this example, the space under the floor (1) as well as the space above the ceiling (2) is used as a hot air passage. This creates a hot air circulation path.

The heater (3) and heat exchanger (4) are located under the floor (5)
It is installed inside.

The warm air from the heater (3) is sent to the 11th atrium or indoors near the stairs through one or more air outlets (
6) The hot air blown from the room is circulated from spaces such as hallways, stairs, and atriums into each room through ventilation holes (7) provided in the doors and walls of each room. Each room has a suction port (8
), and the return hot air from the room is sucked into the underfloor (1) and attic (2) spaces through this suction port (8).

The return warm air flows under the floor (1) and at the ceiling (2).
/j After yJ, return it to the bit (5) under the floor (1) and let it be sucked into the heater (3).

In addition, in this example, the return hot air that is sucked into the attic space (2) and circulated through the space in the attic space (2) is
) and the attic (2) are connected under the floor (
1). This communication path (9) is, for example,
It can be installed in an appropriate location such as a closet or wall that is not normally used or where there is plenty of space.

The ventilation system of this equipment exchanges heat with the return hot air in the heat exchanger (4) of fresh air taken in from outside, mixes it with the return hot air, and heats the air! (3) warms the air and circulates it in each room as warm air.

A portion of the return hot air is exhausted outdoors after undergoing heat exchange.

In this case, for example, as shown in FIG.
0), the dirty air from the toilet (11) etc. may be sent directly to the heat exchanger (4), and after heat exchange, it may be exhausted outdoors as is, in the case of the example shown in Fig. 2. Is there heating? ! ! (3> and heat exchange B (4) are not directly connected, and the return warm air returned to the bit (5) under the floor (1) is sucked into the heater (3) and sent to each room with a warm mf
li! Make an i-ring.

FIG. 3 shows another example of the heat exchange ventilation and heating equipment of the present invention. In this example, the space under the floor (1) is used as a return warm air circulation path, but the space under the ceiling (2) is not used as a hot air passage. Warm air is blown into the room in the 21st century through the hot air supply path (12), and the return warm air is returned to the underfloor (1) through the suction port (8).

As shown in FIG. 1 and FIG.
) is characterized by forming a hot air circulation path using the space as a passageway, but due to the characteristics of the space under the floor (1) and the attic (2), it is not used as a passageway for supplying hot air into the room. ,
It is more preferable to use a circulation path for return warm air.Of course, it is also possible to use a path for supply hot air, but under the floor (1
) and attic space (2), it is necessary to take measures to remove dust.

In addition, when making the space under the floor (1) and the attic (2) a hot air circulation path, install appropriate partitions in the space under the floor (1) and the attic (2) to control the flow of hot air. hand,
It is preferable to circulate warm air throughout the entire area under the floor (1) and above the ceiling (2).This will achieve a floor heating effect over a wide area and avoid localized heating. can.

For example, Figure 4 illustrates the flow of hot air in the under-floor (1) space, but the return warm air sucked in from the hot air suction port (8) on the floor surface takes into consideration the fabric foundation classification. By providing an appropriate partition (13), circulation can be made throughout the space under the floor (1). By doing this,
Under the floor (1), on the floor of the first floor, and also under the ceiling (
In 2), the temperature of the second floor floor surface is effectively raised, and local temperature increases are prevented.

In particular, when the underfloor (1) is used as a hot air circulation path, it is preferable to use cloth foundation insulation.From this point of view as well, in order to make the cloth foundation building ground a heat storage capacity, as shown in Figure 4. ,
It is preferable to install a partition (13) to circulate warm air over almost the entire area under the floor (1).

Heat exchange ventilation heating equipment for the equipment of this invention, such as a heater (3), a heat exchanger (4), and a blower fan, can be installed appropriately in the space under the floor (1) or in the ceiling (2). can. From the viewpoint of space, noise, construction, etc., it is best to install it in the space under the floor (1), especially in the bit (5) under the floor (1) as illustrated in Figures 1, 2, and 3. preferable.

The entire equipment of this invention includes a heater (3) as a heat exchange ventilation/heating device, a heat exchanger (4), and a blower fan, and has a hot air outlet (6) and a hot air inlet (6) installed indoors.
8), and is further provided with an underfloor (1) and/or attic (2) as hot air passages, but it goes without saying that these are not limited to a specific type or shape. Nor. However, as for the heater (3), a preferable embodiment is one using a hot water heater that uses hot water.

This hot water heater is connected to a heating boiler, and, for example, the hot water coil unit shown in FIGS. 5 and 6 is exemplified as a suitable one.

FIG. 5 shows an example in which this hot water coil unit (14) is installed together with a heat exchanger (4) in a bit (5) under the floor (1). The warm air circulated under the floor (1) is guided to the suction port (15) of this hot water coil unit (14),
It is supplied into the room through the pipe (16).

FIG. 6 shows an example of the M4 type of this hot water coil unit (14). The hot water coil unit (14) includes
For example, it has a built-in hot water heat exchanger (17), a fan (18), and a filter (19).
17) is provided with a hot water circulation pipe (20) connected to a heating boiler together with radiation fins.

This invention allows such equipment to be installed in the space under the floor (1) or in the ceiling (2), so the degree of freedom in equipment installation is large, and it is suitable for heat exchange ventilation heating equipment for residential buildings. The space saving effect associated with the introduction of this will be extremely large.

For example, by installing the hot water coil unit (14) and the heat exchanger (4) in the bit (5) under the floor (1), noise such as vibration can be effectively prevented.

Furthermore, even when installed in the ceiling, there is no need to run air supply ducts like in the past, so noise will not be transmitted to each room through these ducts.

Of course, when performing hot water heating using the bit (5) under the floor (1), it is preferable to waterproof the bit (5).

Furthermore, in the heat exchange ventilation/heating equipment of the present invention, it is conceivable that sound in each room leaks and is transmitted through the suction ports (6) provided on the ceiling surface or the floor surface. It may be necessary to prevent this sound leakage.

FIG. 7 shows an example of a silencer that can effectively prevent leakage and transmission of sound. The silencer (21) is attached, for example, to a suction port (6) formed on the floor (22). The suction port (6) is provided with a drainboard or grill (23), and a flange portion (26) and a glass wool elbow portion (27) are installed below this through a support piece (25) between the joists (24). A silencer consisting of (2
1) Install.

In this example, the glass wool elbow part (27) is
The air outlet is closed by a wooden board (28), and has a branching part consisting of a branching outlet (29>(30)) in the left and right directions.The flange part (26) is made of, for example, a steel plate, a painted steel plate, Alternatively, it can have a structure in which four cylindrical parts that can be formed of an appropriate alloy, resin, etc. are joined,
They can be joined by welding or gluing. A glass wool elbow part (27) is bonded to the inner surface of the cylindrical part, but the 6-glass wool elbow part (27), which can be made by adhesion, is made of the material itself or is crushed due to its sound absorption performance, and has no suction. The indoor sound transmitted from the mouth (6) is absorbed by the transmission loss at the elbow and the branch and the sound absorption effect of the material of the glass wool elbow (27), and does not leak to other rooms. For example, a sound of 500 Hz will be reduced by about 15 to 20 dB.

According to such a silencer, not only does it have an excellent silencing effect as mentioned above, but the pressure loss during air blowing is small, and the manufacturing and assembly of the flange part (26) and glass wool elbow part (27), as well as This silencer (21) can be easily installed on the floor or ceiling, and can be retrofitted. Also, a compact silencer can be realized.

Of course, the shape and structure of the silencer are not limited to the examples above.The structure of the house in which the silencer is installed, the amount and flow of air, etc. In a silencer consisting of a flange part (3) and a glass wool elbow part (32),
Without providing a branch part at the air outlet of the glass wool elbow part (32), the other bent part (33) is connected to the outlet (34).
) to increase the sound deadening effect.

(Effects of the Invention) As described above in detail, the present invention solves the drawbacks of conventional ventilation and heating equipment requiring duct piping, and achieves the following excellent effects.

In other words, in the equipment of the present invention, the space constraints associated with duct piping are significantly reduced, so 2x
There is a great degree of freedom in construction as it can be installed even in small houses with attic spaces such as 4 houses, and the pressure on the cost burden of tact materials and construction costs is significantly reduced.

Construction can be done by a general construction company, and unlike conventional tact piping, a specialized construction company is not required.

By using the underfloor and /=i or attic spaces as hot air circulation paths, mellow, wide-area floor heating is achieved.
If it is under the floor, it will not cool down immediately even if the heating is stopped due to heat storage, and the heating effect will continue.

Furthermore, the present invention does not generate noise due to the rotation noise of fan tube equipment transmitted through the duct, which is caused by tact piping, or noise due to wind noise.

Furthermore, especially when installing heat exchange ventilation and heating equipment in an underfloor pit, vibrations and the resulting noise are significantly reduced because a stable foundation is available.

Even if there is a possibility that sound leaks from each room because no duct is used, the present invention can effectively prevent sound leakage by using a silencer that can be installed in the hot air suction port.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the present invention. Second
The figure is a sectional view showing another example of indoor ventilation and installation of a heat exchanger and heater. FIG. 3 is a sectional view showing still another example of the invention. FIG. 4 is a plan view illustrating hot air circulation under the floor. 5 and 6 are a perspective view and a partially cutaway perspective view of the hot water coil unit. FIG. 7 and FIG. 8 are sectional views each showing an example of a silencer. 9 and 10 are plan views showing conventional examples. 1...Under the floor 2...Attic 3...Heater 4...Heat exchanger 5...Underfloor bit
6...Blowout lower...Ventilation [18...Suction port 9...Communication path 10...Pipe line 11...Toilet 12...Warm air supply path 13...Partition
14...Hot water coil unit 15...Suction port
16...Pipe line 17...Hot water heat exchanger 18.
...1 fan...filter 20 hot water pipe 21...silencer 22...floor 2
3...Drain board/grill 24...Root thickness 25...
Support piece 26...Flange part 27...Glass wool elbow part 28...Plate body 29.30...Branch outlet 31...Flange part 32...Glass wool elbow part 33...Bending part 34. ... Exit agent Patent attorney Toshi Nishizawa Mistake 1
Figure 2 Figure 31.7] Figure 4 Figure 7 Figure 29.30 Figure 8 Figure 9

Claims (1)

[Scope of Claims] (1) A heat exchange ventilation/heating system in which a hot air circulation path is formed by using an underfloor and/or attic space as a passageway. (2) The heat exchange ventilation/heating equipment according to claim (1), wherein the space under the floor and/or the ceiling is a path for only return hot air from the room. (3) The heat exchange ventilation/heating equipment according to claim (1), further comprising a communication passage for hot air circulation between the underfloor and the attic. (4) Claim No. (1) in which a partition is provided to form a warm air passageway that heats the entire area under the floor and/or attic space.
(5) The heat exchange ventilation and heating equipment according to claim 1, in which the underfloor space is used as a hot air passage, wherein the underfloor space has a fabric foundation insulation and the fabric foundation building ground has a heat storage capacity. Heat exchange ventilation and heating equipment that forms a return hot air circulation path throughout the space. (6) The heat exchange ventilation and heating equipment according to claim (1), wherein the heat exchange ventilation and heating equipment is installed under the floor or in the attic space. (7) The heat exchange ventilation and heating equipment according to claim (1), in which a silencer is attached to the return warm air inlet to the underfloor and attic space provided on the floor and ceiling.