JPH10196992A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the constitution of equipment of a ventilation system conducting heated air supply and thereby to reduce the cost of the equipment and the probability of failure, and also to execute cleaning and humidity regulation of intake air and thereby to obtain a comfortable indoor environment. SOLUTION: In a ventilation system which is equipped with an exhaust device 11 exhausting indoor air outdoors and an air supply device 15 introducing outdoor air into a room R and uses a fan device for either exhaustion or air supply at least, an air cleaning unit 21 and a heating unit 41 are provided at positions on the upstream side of the air supply device with a duct 17 interlaid. The air cleaning unit 21 has a construction wherein an intake port for introducing the outdoor air into a box is formed in one panel face, while an air supply port for taking out the introduced air outside the box is formed in the opposite panel face to the intake port, and charcoal is charged between the intake port and the air supply port. The heating unit 41 has a construction wherein a heat insulating material is provided on box faces and the intake port is formed in one panel face and the air supply port in the opposite panel face to the intake port respectively, while a heating means 47 with hot water for circulating the hot water supplied from an external boiler is provided at an almost front position of an inflow-side opening of the intake port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation system for a house, and more particularly to a forced ventilation system for purifying and heating outside air and then introducing the outside air into a room.

[0002]

2. Description of the Related Art In general, a house ventilation system depends on whether or not a forced fan is used for air supply and exhaust, as shown in FIGS.
There are types as shown in (e), and each system is used properly according to the purpose of ventilation. As described below, the present invention is particularly applied to forced-ventilation systems (ac) that perform mechanical ventilation using a fan device.

Recently, there has been proposed a ventilation system which detects dirt of indoor air by a sensor and drives an exhaust fan when the degree of dirt becomes a certain level or more. Dirt of the air to be detected is, for example, smoke of cigarettes, water vapor of cooked dishes, carbon dioxide emitted by occupants, and the like, when these are detected by a smoke sensor, a gas sensor, and the like. Drive the fan to provide ventilation.
This type of system has the advantage that power costs can be reduced because the fan is turned on and off in accordance with the degree of indoor air contamination.

[0004]

By the way, when the ventilation fan is driven, an amount of outside air commensurate with the forced exhaust is supplied to the room. Especially in a cold region such as Hokkaido, heat loss is extremely large in the winter season, and the room is comfortable. There is a problem that the property is impaired.

For this reason, a system has been proposed in which heat loss is reduced by providing a heating means on the air supply side. For example, Japanese Patent Application Laid-Open No. 5-256485 discloses a technique in which the outside air temperature is detected by a sensor, and when the outside air temperature is low, heated air is supplied by switching a damper. However, in the configuration in which the air supply damper is switched between the motors, the cost of the apparatus is increased, and a failure such as the freezing of the movable portion in the severe winter season is likely to occur.

Japanese Patent Application Laid-Open No. 3-251298 discloses a method in which a heater is provided under the floor, and the outside air is heated by geothermal heat and a heater.
This is the system that sends this into the room. However, since the underfloor is open to the outside air, the efficiency of heating the underfloor air is poor in areas with severe cold air, such as Hokkaido, and a large amount of heat sources (electricity, hot water, etc.) are required, and there are practical difficulties. .

Further, since cleaning is difficult under the floor (the same applies to the underside of the ceiling, etc.) and the sun does not hit, it is easy for fungi and germs to proliferate. From the room. Although it is possible to provide a filter means on the air supply path, it is not preferable because it requires the user to replace the filter and burden the user with cost.

Further, since the outside air contains a lot of moisture in summer and dries in winter, it is difficult to adjust the humidity only with the ventilation unit.

Accordingly, an object of the present invention is to simplify the device configuration of a ventilation system for heating and supplying air, reduce the cost of the device and the probability of failure, and purify and regulate the intake air to provide a more comfortable indoor environment. The point is to gain.

[0010]

In order to achieve the above-mentioned object and to solve the problem, a ventilation system according to the present invention comprises an exhaust device for discharging indoor air to the outside and an air supply device for introducing outside air to the room. In a ventilation system using a fan device for at least one of exhaust air and air supply, a purifying unit and a heating unit are disposed via a duct at a position upstream of the air supplying device, and the purifying unit is An air inlet for introducing outside air into the box is formed on one panel surface, and an air outlet for taking out the introduced outside air out of the box is formed on an opposite panel surface of the air inlet, and the air inlet and the air outlet are formed. In the meantime, the heating unit is provided with a heat insulating material on a box surface, forms an air inlet for introducing outside air in the box on one panel surface, and converts the introduced outside air into a box. Outside The air supply port for taking out formed on the opposing panel faces of the intake port, a substantially front position of the inflow side opening of the intake port, constituting arranged hot water heating means for circulating hot water supplied from an external boiler.

[0011] Further, a heating unit is provided at a stage subsequent to the purifying unit, and an air inlet of the heating unit and an air inlet of the heating unit communicate with each other.
In some cases, the duct communicates with the air supply device.

[0012]

The ventilation system according to the present invention is provided with a purifying unit and a heating unit disposed at a position upstream of an air supply device via a duct to purify and warm outside air, and then supply air into a room. It is. Charcoal is used to purify the intake air. This is because charcoal has many fine voids and can adsorb dust and mold in the air. In addition, it absorbs moisture when the humidity is high, and exhales when the outside air dries, so it has a so-called humidity control property. It is possible to release moisture and prevent indoor drying. In addition, the antibacterial effect, antiseptic effect, anti-rust effect, etc. due to the far-infrared emission characteristic of charcoal have recently become known. No maintenance is required for replacement. On the other hand, for heating the intake air, hot water heating means for circulating hot water is used. Hot water heating means
Supply hot water from an external boiler.

Each of the air purifying and heating units has a box structure for purifying, controlling, and warming air naturally suctioned by driving an indoor exhaust fan or an air supply fan. Efficient purification and humidity control with a small amount of charcoal,
This is for effectively utilizing a small amount of heat from the heat source. In each unit, an intake port for taking in air into the box and an air supply port for taking out air from the box are formed on opposite surfaces, and in the purifying unit, charcoal is charged between them and heated. In the unit, a heating means is arranged at a position substantially in front of the intake port. This is to ensure that the sucked air is brought into contact with the charcoal and the heating means in each unit to prevent outside air from being directly sent into the room. Furthermore, a heat insulating material is arranged in the heating unit to suppress heat loss in the box.

The order of arrangement of the purifying unit and the heating unit is not particularly limited. However, when the heating unit is provided in the preceding stage, it is desirable to provide a heat insulating material also in the air purification unit. This is to prevent the air heated by the heating unit from cooling when passing through the air purification unit. Claim 2
In the case where the heating unit is disposed downstream of the purifying unit as described above, the arrangement of the heat insulating material in the purifying unit can be omitted.

This unit is a heating means (heating unit)
As long as hot water can be supplied to the house, the position can be freely selected in the house. However, it is preferable that the temperature of the outside air to be sucked is not as low as possible.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show an example of a ventilation system according to the present invention. As shown in FIG.
Exhaust fan 1 that forcibly exhausts air in room R to the outside
1, an exhaust duct 12 and an outdoor hood 13, and an air supply port device 15 (register) and an air supply pipe 16 for introducing outside air into the room when the exhaust fan 11 is driven.
An air purification unit 21 and a heating unit 41 are sequentially provided upstream of the air supply port device 15 via an air supply duct 17.

As shown in FIG. 2, the purifying unit 21 has a substantially cubic box (body case) 22 formed of a metal panel, for example, as shown in FIG. The lid 25 is not always necessary. One side surface of the main body case 22 is formed of a wire mesh 23 (for example, 16 mesh) so that outside air can be introduced into the case 22 and serves as an air inlet, while the opposite panel surface has a duct 18 (FIG. 1).
The heating unit 41 is provided with an air supply port 24 for sending out the air in the box 22 via the heating unit 41.

The main case 22 contains two charcoal cases 31 and 35 each having charcoal loaded therein. The charcoal cases 31 and 35 are formed in a box shape with a metal panel, for example, similarly to the main body case 22, and each case 31 and 35 is formed by forming opposing case side surfaces with a wire mesh 32 (for example, 16 mesh). Allow air to flow through. Although the type and size of the charcoal to be put in this case are not limited, for example, the case 31 accommodated in the former stage (on the side of the intake port 23) has a relatively large (long) shape that maintains the wood shape.
The charcoal 33 is piled up like a girder. This is because the air permeability inside the charcoal case 31 is made good and the outside air flows smoothly into the main body case 22 from the intake port 23. On the other hand, a case 35 accommodated in the latter stage (on the side of the air supply port 24) is loaded with, for example, charcoal pieces (shards) 36. This is to more completely remove fine dust, dust, and the like that could not be removed by the former case 31. These charcoals may be loaded as they are, but may be placed in a breathable bag if necessary.

As the charcoal 33, 36 to be charged, for example, Bincho charcoal is desirable. This is because the fine voids are dense and have an excellent ability to adsorb dust and moisture. Bincho charcoal is more expensive than other charcoal. However, according to this system, the amount of charcoal used can be reduced to a small amount enough to be loaded into the case (31, 35). However, there is no practical problem in terms of cost.

The dimensions of the main body case 22 are such that the length L, width W, and height H in the ventilation direction are, for example, 600, 530, and 2, respectively.
10 mm. On the other hand, the length l of the charcoal cases 31 and 35
Is, for example, 200 mm. In addition, width w and height dimension h
Has a size just enough to fit in the main body case 22 so that a gap is not formed between the main body case 22 and the inner wall surface. This is to prevent the inflowing air from being directly sent to the next-stage heating unit 41 without passing through the charcoal cases 31 and 35. For example, w = 520 mm, h = 205 m
m.

Therefore, the wire mesh (suction port) 2 of the main body case 22
All the air flowing in from the air inlet 2 passes through the front charcoal case 31 and then passes through the rear charcoal case 35 to supply the air to the air inlet 2.
4 to the heating unit 41. Although it is possible to load three charcoal cases (31, 35) into the main body case 22 by adopting such a size, the flowability of air in the unit is not reduced.
In this embodiment, the number of charcoal cases loaded is two.

On the other hand, in the heating unit 41, for example, as shown in FIG. 3, a main body case 42 is formed from a metal panel to form a substantially cubic box shape, and a heat insulating panel 43 such as urethane foam is attached to the outer surface thereof. To prevent the temperature inside the box 42 from dropping.
4, and a rectifying duct 45 for regulating the flow of the inflow air is disposed outside. Further, the air in the box is supplied to the panel surface facing the air inlet 44 through the air supply duct 17 in the room R.
The number of air supply ports 46 to be sent out is provided appropriately.

A hot water heater (convector) 47 for circulating hot water supplied from an external boiler (not shown) such as a central unit is provided in front of the opening of the intake port 44. The hot water heater 47 is connected to the air inlet 4
In order to allow the outside air flowing in from 4 to flow smoothly to the air supply port 46, the air gap is formed with appropriately spaced gaps. For example, there are a steam heater type in which a hot water pipe is circulated with a U-shaped pipe, and a storage panel type in which a plurality of ventilation holes 50 are provided on a panel surface as shown in FIG. It doesn't matter.

Therefore, according to this configuration, the rectifying duct 4
The air that has flowed into the box 42 through 5 passes through a hot water heater 47 in front of the intake port 44 to perform heat exchange, is heated, and is sent from the air supply port 46 to the room R.
The air supply temperature at this time is about 25 to 30 ° C., although it varies depending on the driving state of the indoor exhaust fan and the outside air temperature. Even when the outside air temperature is very low, for example, under a condition of lower than −20 ° C., the air passing through the hot water heater 47 is heated to about 10 ° C., and furthermore, the air remaining in the box 42 The temperature of the air supplied to the room R can be kept sufficiently comfortable unless the exhaust fan is operated for an excessively long time because the mixture is heated to around 20 ° C. without fail.

The purifying unit 21 and the heating unit 41
Is desirably arranged under the floor or in the ceiling space. In either case, the indoor space is not wasted, and the outside air temperature to be taken in does not become excessively low. When it is arranged under the floor and in the ceiling space, the intake air temperature is 5 to 10 ° C. or higher even in severe winter, so that the temperature in the box can be kept at an appropriate level even when the exhaust fan is operated for a long time. In addition, even if molds and germs may propagate in such a space, the inhaled air is purified by the air purification unit 21, so that there is no risk that these will flow into the room R and scatter.

It is desirable that each of the boxes 21 and 41 (particularly the heating unit 41) has a certain margin in volume so that the sucked air can be stored to some extent.
The box volume can be appropriately set according to the indoor space, the outside winter temperature, the amount of hot water supplied, and so on.For example, when the box volume is arranged in the ceiling space of a single-family house, the vertical dimensions and the shape of the box are also arranged. , And the design of the hot water heater 47 is appropriately changed according to the box shape.

In the above embodiment, the main body cases (boxes) 22 and 42 of each unit are described as being formed of a metal panel. However, as long as there is no disadvantage in cost, it may be formed of a resin or a wood panel. Absent. Although the type of the heat insulating material 43 is not limited, glass wool may be mixed into the air supply as fine powder. Therefore, it is preferable to use the glass wool in a state sandwiched between box panels (so-called sandwich type).

In the above embodiment, the rectifying duct 45 is provided in the heating unit, but this member is not always necessary. However, in any case, it is desirable that the shape of the air inlet be slightly widened toward the hot water heater 47, and that the inflow air be diffused evenly in the up, down, left, and right directions and pass through the hot water heater 47. Hot water can be supplied to the hot water heater 47 using a central facility in the house, and it is not necessary to provide a special boiler.

Further, the purifying unit 21 and the heating unit 4
The arrangement order of 1 is not necessarily required to be the same as that of the above-described embodiment, and the arrangement order may be reversed (the order of heating and purifying downstream). However, the air purification unit 21
In the latter case, it is desirable to provide a heat insulating material also in the unit 21. This is to prevent the temperature of the air heated by the heating unit 41 from decreasing. Further, it is possible to reduce the cost by using boxes having substantially the same structure (size, material, etc.) for the main body cases 22, 42 of the air purifying unit and the heating unit. In the embodiment, after the charcoal is loaded into the charcoal case (31, 35), the main body case (22)
The structure where charcoal is directly loaded into the main body case,
Alternatively, charcoal can be provided in the heating unit, and the present invention is not limited to the unit structure of the embodiment.

[0030]

As described above, according to the ventilation system of the present invention, it is possible to simplify the device configuration of the ventilation system for heating and supplying air, to reduce the device cost and the probability of failure, and to purify the intake air. It is possible to control the humidity and obtain a comfortable indoor environment.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a ventilation system according to the present invention.

FIG. 2 is an exploded perspective view illustrating an example of a purifying unit provided in the present system.

FIG. 3 is a perspective view illustrating an internal structure of a heating unit provided in the present system.

FIG. 4 is a perspective view showing another example of the hot water heating means.

FIG. 5 is a conceptual diagram showing types of ventilation systems.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Exhaust fan 12 Exhaust duct 13 Outdoor hood 15 Air supply device (register) 16 Air supply pipe 17, 18 Air supply duct 21 Purification unit 22, 42 Main body case 23 Wire mesh (inlet of purification unit) 24, 46 Transmission Vent 25 Lid 31,35 Charcoal case 32 Wire mesh 33,36 Charcoal 41 Heating unit 43 Insulation panel 44 Inlet 45 Rectifier duct 47 Hot water heater (Convector) 50 Vent

Claims (2)

[Claims] 1. A ventilation system comprising: an exhaust device for discharging indoor air to the outside; and an air supply device for introducing outside air into a room, wherein the ventilation system uses a fan device for at least one of exhaust and air supply. A purifying unit and a heating unit are arranged via a duct at an upstream position of the air purifying unit, and the purifying unit forms an intake port for introducing outside air into the box on one panel surface, and also controls the introduced outside air. An air outlet to be taken out of the box is formed on the panel surface opposite the air inlet, and charcoal is loaded between the air inlet and the air inlet, while the heating unit is provided with a heat insulating material on the box surface. An inlet for introducing outside air into the box is formed on one panel surface, and an air outlet for taking out the introduced outside air to the outside of the box is formed on an opposite panel surface of the inlet, and the inlet side of the inlet is formed. Abbreviation for opening The surface position, ventilation system characterized by being configured arranged hot water heating means for circulating hot water supplied from an external boiler. 2. A heating unit is disposed at a stage subsequent to the purifying unit, and an air inlet of the heating unit and an air inlet of the heating unit communicate with each other. The ventilation system according to claim 1, wherein the ventilation system communicates with a duct communicating with the ventilation device.