JPH09178244A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce probability of troubles with the simplification of circuitry by arranging an adiabatic material on a box surface of a humidifying unit on the upstream side of an air feeder and a feed air port is formed on a panel surface facing a suction port of one panel surface communicating with a duct and a hot water heating means is arranged on the facade of an inflow side opening of the suction port. SOLUTION: A humidifying unit 20 is provided on the upstream side of an air feeder through an air duct 25. The humidifying unit 20 is built up with a metal panel and given a shape of a roughly solid box 21 in appearance and an adiabatic panel 22 made of a urethane foam is stuck on the external side thereof. A suction port 23 is formed on one side of the box 21 and a straightening duct 24 is arranged outside the box 21 to adjust the flow of the air flowing thereinto. A proper number of feed air ports 26 are provided on the panel surface facing the suction port 23 to feed air in the box into a room through the air duct 25. On the other hand, a hot water heater 27 (convector) is provided on the front of the opening of the suction port 23 to circulate hot water to be supplied from an external boiler.

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 structure of a unit for heating introduced outside air.

[0002]

2. Description of the Related Art House ventilation systems come in various types depending on whether forced fans are used for air supply and exhaust. 4 (a) to 4 (e) show a general type of ventilation system, but as will be described below, the present invention is particularly a type of ventilation system (a, c) that performs forced exhaust.
It is applied to.

Recently, a sensor for detecting dirt in the air in the room
A system has been proposed in which an exhaust fan is activated when the degree of contamination exceeds a certain level. The dirt in the air to be detected is, for example, cigarette smoke, carbon dioxide, water vapor during boiling and cooking, and these are detected by a smoke sensor, gas sensor, etc., and the exhaust fan is driven when the detection result exceeds the set threshold value. It does. Such a system turns on the exhaust fan according to the degree of dirt in the room air and turns it off.
Therefore, there is an advantage that the power cost can be suppressed.

[0004]

However, when the exhaust fan is driven in this way, an amount of outside air commensurate with the forced exhaust is supplied to the room, and particularly in a cold region such as Hokkaido, heat loss occurs in the winter. There was a problem that the comfort was seriously impaired.

Therefore, conventionally, there has been proposed a system for reducing heat loss by providing heating means on the air supply side. For example, Japanese Laid-Open Patent Publication No. 5-256485 discloses a sensor for detecting the outside air temperature, and when the outside air temperature is low, heating air is sent by switching the damper. However, in the configuration in which the air supply damper is switched to the motor, the device cost is increased and a malfunction such as freezing of the movable portion is likely to occur during the severe winter. Further, Japanese Patent Laid-Open No. 3-251298 proposes a system in which a heater means is provided under the floor to warm the outside air with the geothermal heat and the heater and to send it into the room, although it is not forcibly exhausted. However, since the underfloor space is open to the outside, it is difficult to heat the underfloor air in areas with severe cold, such as Hokkaido, and requires a large amount of heat sources (electricity, hot water, etc.) .

Therefore, an object of the present invention is to reduce the apparatus cost and the failure probability by further simplifying the apparatus configuration.

[0007]

In order to achieve the above object and to achieve the above object, a ventilation system according to the present invention comprises an exhaust device for exhausting indoor air to the outside by an exhaust fan, and external air to the indoor when driving the exhaust fan. As a technical premise of a ventilation system including an air supply device that can be introduced, a heating unit is arranged at a position upstream of the air supply device via a duct, and the heating unit is arranged with a heat insulating material on a box surface. , An intake port is formed on one panel surface, and an air supply port communicating with the duct is formed on a panel surface facing the intake port, while the air is supplied from an external boiler to a substantially front position of an inlet side opening of the intake port. A hot water heating means for circulating hot water is arranged.
Also, it is desirable to place the heating unit under the floor of the house or in the ceiling space.

[0008]

In the ventilation system according to the present invention, a heating unit is arranged at a position upstream of the air supply device via a duct to supply warmed air to the room. The heating unit has a box structure for warming the air naturally sucked by forced exhaust on the indoor side. This is because a small amount of heat from the heat source is effectively used. For this reason, a heat insulating material is placed on the inner surface of the box to suppress heat loss of the air inside the box.

An intake port (air intake port) for sucking air into the box and an air supply port for supplying air into the room are formed on opposite surfaces. This is to prevent the sucked cold air from flowing into the room as it is. For this reason, a heating means by hot water is provided in front of the intake port in the box to reliably heat the inhaled outside air by passing it through, and the warmed air is supplied to the inside of the room from the air outlet of the opposite panel. .

This heating unit can be freely installed in the house at any place where hot water can be supplied to the heating means. However, it is preferable that the temperature of the outside air sucked is not as low as possible. It is desirable to place it in a space.

[0011]

1 and 2 show an example of a ventilation system according to the present invention. The ventilation system according to the present invention is, as shown in FIG.
And an exhaust duct 11 for forcibly discharging indoor air to the outside by the exhaust fan 10, an outdoor hood 12, and the like, and an air supply port device (register) for introducing outside air when the exhaust fan 10 is driven. 14, air supply pipe 15
In addition, the heating unit 20 is provided upstream of these air supply systems via an air supply duct 25.

The heating unit 20 has a substantially cubic box (main body case) 21 formed by molding a metal panel as shown in FIG. 1, and a heat insulating panel 22 made of urethane foam or the like is attached to the outer surface of the box. A rectifying duct 24 that forms an intake port 23 on one side surface of the box 21 to regulate the flow of inflow air while preventing the temperature inside the box from decreasing.
To the outside. In addition, an appropriate number of air supply ports 26 for supplying the air in the box to the room via the air supply duct 25 are provided on the panel surface facing the air intake port 23.

On the other hand, a hot water heater (convector) 27 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 23. The warm water heater 27 is configured with gaps at appropriate intervals so that the outside air flowing from the intake port 23 can smoothly flow to the air supply port 26. For example, a steam heater type in which a hot water pipe is circulated with a U-shaped pipe, a storage panel type in which a plurality of ventilation holes 30 are provided on a panel surface as shown in FIG. 3, and the like have a shape as long as the flow of inflow air is not hindered. It doesn't matter.

Therefore, according to this structure, all the air that has flowed into the box 21 through the rectifying duct 24 passes through the hot water heater 27 in front of the intake port 23 to exchange heat and be warmed. It is sent to the room R from the air supply port 26. The air supply temperature at this time is about 25 to 30 although it varies depending on the driving state of the indoor exhaust fan 10 and the outside air temperature.
° C. The outside temperature is very severe, for example minus 20
Even under the condition of lower than ℃, the air that has passed through the hot water heater 27 is warmed up to about 10 ℃, and further mixed with the air staying in the box 21 to reliably heat up to about 20 ℃. Since it is heated, the temperature of the air supplied to the room R can maintain sufficient comfort unless the exhaust fan 10 is operated for an excessively long time.

The heating unit 20 is preferably placed under the floor or in the ceiling space. In either case, the indoor space is not wasted, and the outside air temperature itself to be inhaled does not become excessively low. When placed under the floor and in the ceiling space, the intake air (outside air) temperature is 5 to 10 ° C. or higher even in the severe winter season, so the temperature inside the box 21 should be kept appropriate even if the exhaust fan 10 is operated for a long time. Can be done.

As shown in FIG. 1, it is desirable that the box 21 has a slight margin in volume so that the sucked air can be stored to some extent. The box volume can be set as appropriate according to the indoor space, the outdoor temperature in winter, the amount of hot water supplied, and so on. Hot water heater designed according to (27)
Also change the design appropriately according to the box shape.

In the above embodiment, the case (box) of the heating unit is described as being formed of a metal panel, but it may be formed of a resin or wood panel as long as there is no cost disadvantage. Although the type of heat insulating material is not limited,
Since glass wool is not preferable because it may become fine powder and may be mixed into the air supply, it is desirable to use it in a state of being sandwiched between the box panels (so-called sandwich type).

Further, although the rectifying duct 24 is provided in the above embodiment, this member is not always necessary. However, in any case, it is preferable that the shape of the intake port 23 is slightly expanded toward the hot water heater 27 so that the inflowing air is evenly diffused in the vertical and horizontal directions to pass through the hot water heater (27). The hot water can be supplied to the hot water heater 27 by using the central facility in the house, and it is not necessary to install a special boiler.

[0019]

As described above, according to the ventilation system of the present invention, it is possible to secure the comfort of winter living even with a simple device configuration and reduce the device cost and the failure probability. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of the internal structure of a heating unit according to the present invention.

FIG. 2 is a diagram illustrating an overall configuration of a ventilation system according to the present invention.

FIG. 3 is a perspective view illustrating the external shape of the heating unit according to the present invention.

FIG. 4 is a conceptual diagram showing types of ventilation systems.

[Explanation of symbols]

 10 Exhaust Fan 11 Exhaust Duct 12 Outdoor Hood 14 Air Supply Device (Register) 15 Air Supply Pipe 20 Heating Unit 21 Box (Main Body Case) 22 Insulation Panel 23 Inlet 24 Rectifying Duct 25 Air Supply Duct 27 Hot Water Heater (Convector) ) 30 vents

Claims (2)

[Claims] 1. A ventilation system comprising an exhaust device for exhausting indoor air to the outside by an exhaust fan and an air supply device capable of introducing outside air into the room when the exhaust fan is driven, wherein a duct is provided upstream of the air supply device. The heating unit is provided with a heat insulating material on the box surface, an air inlet is formed on one panel surface, and an air supply port communicating with the duct is formed on a panel surface opposite to the air inlet. On the other hand, the ventilation system is characterized in that hot water heating means for circulating hot water supplied from an external boiler is arranged at a substantially front position of the inflow side opening of the intake port. 2. The ventilation system according to claim 1, wherein the heating unit is arranged at at least one of a space under a house floor and a ceiling space.