JP3039597U - Ventilation system - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To simplify the device configuration of a ventilation system for heating and supplying air and reduce the device cost and failure probability. Purifies and regulates the intake air to obtain a comfortable indoor environment. SOLUTION: Exhaust device 11 for discharging indoor air to the outdoors
And an air supply device 15 for introducing outside air into the room R, and in a ventilation system using a fan device for at least one of exhaust air or air supply, a duct 17 is provided at a position upstream of the air supply device.
The heating unit 41 is arranged via the. Heating unit 41
While the heat insulating material is arranged on the box surface, the intake port is formed on one panel surface, and the air supply port communicating with the duct is formed on the opposite panel surface of the intake port, while the inlet side opening of the intake port A hot water heating means 47 for circulating hot water supplied from an external boiler is arranged at a substantially front position. Purification unit 2 with charcoal loaded upstream or downstream of the heating unit
1 may be further arranged.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ventilation system for a house, and more particularly to a forced ventilation system for heating outside air and introducing it into a room.

[0002]

[Prior art]

 Ventilation systems in houses are generally classified according to whether or not a forced fan is used for air supply and exhaust, as shown in Fig. 5 (a) to (e), and each system is used according to the purpose of ventilation. To be As will be described below, the present invention is particularly applicable to forced ventilation systems (a to c) for mechanical ventilation using a fan device.

Recently, there has been proposed a ventilation system in which a sensor detects dirt in the room air and drives an exhaust fan when the degree of dirt exceeds a certain level. The detected air pollution is, for example, cigarette smoke, steam of boiled dishes, carbon dioxide emitted by occupants, etc. These are detected by smoke sensors, gas sensors, etc., and the detection result exceeds the set threshold. Sometimes the fan is driven to ventilate. This type of system has an advantage that the power cost can be suppressed because the fan is turned on and off according to the degree of contamination of the air in the room.

[0004]

[Problems to be solved by the device]

 By the way, when the ventilation fan is driven, the amount of outside air that is commensurate with the forced exhaust is supplied to the room, and especially in cold regions such as Hokkaido, there is a problem that heat loss is significant in the winter and indoor comfort is impaired.

For this reason, conventionally, a system has been proposed which reduces heat loss by providing a heating means on the air supply side. For example, in Japanese Patent Laid-Open No. 5-256485, a sensor detects the outside air temperature, and when the outside air temperature is low, heated air is sent by switching a 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 in the severe winter season.

Further, Japanese Patent Laid-Open No. 3-251298 is a system in which a heater means is provided under the floor, the outside air is warmed by the geothermal heat and the heater, and this is sent indoors. However, since the underfloor is open to the outside air, the heating efficiency of the underfloor air is poor in areas with severe cold, such as Hokkaido, and a large amount of heat source (electricity, hot water, etc.) is required, which poses a practical problem. .

[0007] Furthermore, since it is difficult to clean the underfloor (likewise for the ceiling and the like) and it is not exposed to the sun, fungi and other germs easily propagate, and when the underfloor air is taken in as it is, these are sucked and supplied. There is also the problem of being sent from the device into the room. It is possible to provide a filter means on the air supply route, but this is not preferable because it compels the user to replace the filter and bear the expense.

There is also a problem that it is difficult to adjust the humidity only by the ventilation unit because the outside air contains a lot of humidity in the summer and is dry in the winter.

Therefore, an object of the present invention is to simplify the device configuration of the ventilation system for heating and supplying air to reduce the device cost and the failure probability, and to purify / humidify the intake air to create a more comfortable indoor environment. There is a point to gain.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object and solve the problems, a ventilation system according to the present invention comprises an exhaust device for discharging indoor air outdoors and an air supply device for introducing outside air into the room. In a ventilation system using at least one fan device, a heating unit is arranged at a position upstream of the air supply device via a duct, and the heating unit has a box surface provided with a heat insulating material and one panel. An intake port is formed on the surface, and an air supply port communicating with the duct is formed on a panel surface opposite to the intake port, while hot water supplied from an external boiler is provided substantially in front of the inflow side opening of the intake port. It is configured by arranging hot water heating means for circulating.

In addition, an air purifying unit may be further arranged upstream or downstream of the heating unit, and this air purifying unit forms an intake port for introducing outside air into the box on one panel surface and introduces it. An air supply port for taking out the outside air to the outside of the box is formed on a surface of a panel facing the air intake port, and charcoal is loaded between the air intake port and the air supply port.

[0012]

[Action]

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

An intake port for taking in air into the box and an air feeding port for taking out air from the box 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 with hot water is provided in front of the intake port inside the box to ensure that all the sucked outside air is heated, and the heated air is supplied from the air supply port of the opposite panel to the indoor side. To do.

There may be a case where a purifying unit for purifying the air to be heated is further arranged upstream or downstream of the heating unit. Charcoal is used to purify the air in this unit. This is because charcoal has many fine voids and can adsorb dust and mold in the air. It also has a so-called humidity control property, which absorbs humidity when the humidity is high and discharges the humidity when the outside air is dry.Therefore, it is possible to remove the humidity of the outside air in the summer and supply dry air to the room, while in the winter it is adsorbed in the summer. It is possible to release the generated moisture and prevent the inside of the room from drying. In addition, the antibacterial effect, antiseptic and rust preventive effect due to the far infrared ray emission characteristic of charcoal has been recently known, and even if it is used over a long period of time, it can be used semipermanently with almost no deterioration in its effect. No maintenance is required for charcoal exchange.

Like the heating unit, the air purifying unit also has a box structure for purifying / humidifying the air naturally sucked by driving the exhaust air or the air supply fan on the indoor side. This is because the purification and humidity control can be performed efficiently with a small amount of charcoal. In addition, an intake port for taking in air into the box and an air intake port for taking out air from the box are formed on the opposite surfaces, and charcoal is loaded between the intake port and the air intake port. This is to ensure that the outside air to be introduced comes into contact with the charcoal.

The location of the air purification unit may be provided upstream of the heating unit or downstream (between the heating unit and the air supply device). However, if it is installed in the lower stream of the heating unit, it is desirable to install 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. If it is provided upstream of the heating unit, the provision of such a heat insulating material can be omitted.

The position of this unit can be freely selected in the house as long as it is a place where hot water can be supplied to the heating means (heating unit). However, it is preferable that the outside air temperature to be sucked in is not as low as possible, so it is desirable to place it under the floor or in the ceiling space.

[0018]

【Example】

 Hereinafter, embodiments of the present invention will be described 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. 1, the present system includes an exhaust fan 11 forcibly exhausting the air in the room R to the outside, an exhaust duct 12 and an outdoor hood 13, and introduces outside air into the room when the exhaust fan 11 is driven. The mouth device 15 (register) and the air supply pipe 16 are provided. Then, an air purification unit 21 and a heating unit 41 were sequentially provided upstream of the air supply port device 15 via an air supply duct 17. The air purification unit 21 is not essential to the present invention, and may be omitted if there is no risk of suction of mold or dust due to the installation location of the unit or the like.

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

The main body case 22 accommodates two charcoal cases 31 and 35 having charcoal loaded inside. The charcoal cases 31 and 35 are, for example, formed into a box shape with a metal panel like the main body case 22. By constructing the opposite side surfaces of the case with a wire mesh 32 (for example, 16 mesh), the cases 31 and 35 are Allow air to flow through. The type and size of the charcoal to be put in this case does not matter, but a relatively large (long) charcoal 33 that keeps the shape of wood is piled up like a cross in the case 31 that is housed in the previous stage (on the intake port 23 side). This is for improving the air permeability in the charcoal case 31 and allowing the outside air to smoothly flow into the main body case 22 from the intake port 23. On the other hand, for example, a charcoal piece (fragment) 36 is loaded in the case 35 housed in the latter stage (on the side of the air supply port 24). This is to more completely remove fine dust and dirt that could not be removed by the front case 31. These charcoals may be loaded as they are, or in a breathable bag if desired.

The charcoal 33, 36 to be loaded is preferably Bincho charcoal, for example. This is because the fine voids are dense and have excellent ability to adsorb dust and moisture. Although Bincho charcoal is more expensive than other charcoals, this system allows the amount of charcoal used to be reduced to the amount required to fill the case (31, 35). However, there are no practical cost problems.

As for the dimensions of the main body case 22, the length L in the ventilation direction, the width W, and the height H are, for example, 600, 530, and 210 mm, respectively. On the other hand, the length l of the charcoal cases 31 and 35 is, for example, 200 mm. Further, the width w and the height dimension h are set to a size dimension that can be exactly accommodated in the main body case 22 so that no gap is formed between the width and the inner wall surface of the main body case 22. This is to prevent the inflowing air from being directly sent to the heating unit 41 of the next stage without passing through the charcoal cases 31 and 35. For example, w = 520 mm and h = 205 mm.

Therefore, all the air that has flowed in from the wire net (intake port) 23 of the main body case 22 passes through the charcoal case 31 in the front stage, and then passes through the charcoal case 35 in the rear stage to the heating unit 41 from the air supply port 24. Sent out. Although it is possible to load three charcoal cases (31, 35) in the main body case 22 with such a size, in this embodiment, in order not to reduce the fluidity of air in the unit, There are two charcoal cases loaded.

On the other hand, in the heating unit 41, for example, as shown in FIG. 3, a main body case 42 is formed of a metal panel into a substantially cubic box shape, and a heat insulating panel 43 such as urethane foam is attached to the outer surface thereof. While preventing a temperature drop in the box 42, an air inlet 44 is formed on one side surface of the box 42, and a rectifying duct 45 for adjusting the flow of inflow air is arranged outside. In addition, an appropriate number of air supply ports 46 for supplying the air in the box to the room R through the air supply duct 17 are provided on the panel surface facing the air intake port 44.

A hot water heater (convector) 47 that circulates 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 configured with appropriately spaced voids so that the outside air flowing from the intake port 44 through the purifying unit 21 in the preceding stage can smoothly flow to the air supply port 46. 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 50 are provided on the panel surface as shown in FIG. 4, etc. are used as long as the flow of inflowing air is not obstructed. It doesn't matter.

Therefore, according to such a configuration, all the air that has flowed into the box 42 through the rectifying duct 45 passes through the hot water heater 47 in front of the intake port 44 to perform heat exchange and be warmed. And is sent to the room R from the air supply port 46. 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 under conditions where the outside air temperature is very low, for example, below −20 ° C., the air that has passed through the hot water heater 47 is warmed up to about 10 ° C., and the air remaining in the box 42 is 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 it is mixed and heated up to about 20 ° C.

The air purification unit 21 and the heating unit 41 are preferably arranged 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 in the underfloor and ceiling spaces, the intake air temperature is 5 to 10 ° C or higher even during the harsh winter, so the temperature inside the box can be kept moderate even if the exhaust fan is operated for a long time. In addition, even if mold or other bacteria may propagate in the space, the air taken in is cleaned by the air purification unit 21, so there is no risk of these flowing into the room R and scattering.

It is desirable that each of the boxes 21 and 41 (particularly the heating unit 41) 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, etc.Therefore, for example, when arranging it in the ceiling space of a detached house, the upper and lower dimensions and the shape of the box are also included. The hot water heater 47 is designed according to the arrangement space and the design of the hot water heater 47 is changed according to the shape of the box.

In addition, in the above-mentioned embodiment, it was explained that the main body cases (boxes) 22 and 42 of the respective units are formed of metal panels, but they may be formed of resin or wood panel or the like as long as there is no cost disadvantage. I do not care. Although the type of the heat insulating material 43 is not limited, it is desirable that the glass wool is used in a state of being sandwiched between the box panels (so-called sandwich type) because it may become fine powder and mix into the air supply.

Further, although the rectifying duct 45 is provided in the heating unit in the above embodiment, this member is not always necessary. However, in any case, it is desirable that the shape of the intake port is slightly expanded toward the hot water heater 47 so that the inflowing air is evenly diffused in the up, down, left, and right directions to pass through the hot water heater 47. The hot water can be supplied to the hot water heater 47 by using the central facility in the house, and it is not necessary to provide a special boiler.

Furthermore, the arrangement order of the purifying unit 21 and the heating unit 41 does not necessarily have to be the same as that in the embodiment, and the arrangement order may be reversed (heating toward the downstream side, then purifying order). It is possible. However, when the purifying unit 21 is provided in the latter stage, it is desirable to dispose a heat insulating material also in the unit 21. This is to prevent the temperature of the air warmed by the heating unit 41 from decreasing. It is also possible to use boxes having substantially the same structure (size, material, etc.) for the main body cases 22 and 42 of the purifying unit and the heating unit to reduce the cost. In the embodiment, the charcoal is stored in the main body case (22) after being filled in the charcoal case (31, 35). However, the charcoal is directly loaded into the main body case, or the charcoal is also arranged in the heating unit. However, the present invention is not limited to the unit structure of the embodiment.

[0032]

[Effect of the invention]

 As described above, according to the ventilation system of the present invention, it is possible to reduce the device cost and the failure probability by simplifying the device configuration of the ventilation system for heating and supplying air. Furthermore, according to the system of the second aspect of the present invention, it is possible to purify and regulate the intake air 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)

[Utility model registration claims] 1. A ventilation system comprising an exhaust device for discharging indoor air outdoors and an air supply device for introducing outside air into the room, wherein a fan device is used for at least one of exhaust gas and air supply. A heating unit is arranged at a position upstream of the duct via a duct, and the heating unit has a heat insulating material arranged on the box surface, and an intake port is formed on one panel surface, and a panel surface opposite the intake port is formed While forming an air supply port communicating with the duct, a hot water heating means for circulating hot water supplied from an external boiler is arranged at a substantially front position of an inflow side opening of the intake port. Ventilation system. 2. A purifying unit is further arranged upstream or downstream of the heating unit, and the purifying unit has an intake port for introducing outside air in a box formed on one panel surface and the introduced outside air. The ventilation system according to claim 1, characterized in that an air supply port for taking out the air from the box is formed on a panel surface of the air intake port, and charcoal is loaded between the air intake port and the air supply port.