JPH01155138A - Air supplying and discharging device - Google Patents

Abstract

PURPOSE:To supply air to a site, from which the air is being discharged, so as to correspond to the degree of discharging the air, by a method wherein an air supply control means, driving an air supplying facility in accordance with the condition of a negative pressure, detected by a negative pressure detecting means detecting the condition of a negative pressure in a housing with respect to atmosphere, is provided in the title device. CONSTITUTION:When air discharge is continued for a predetermined period of time through an air discharging duct 9, a pressure in a room becomes gradually the condition of a negative pressure compared with a pressure outside of the room. Air pressures, inside and outside of the room, are monitored at all times by a control unit 11a through air pressure sensors 11e, 11f and when a difference between both of the air pressure sensors 11e, 11f or the condition of negative pressure in the room has exceeded a predetermined specified value, the control unit 11a drives the air supplying fan 11g of an air supplying fan unit 11h to rotate it. Then, outdoor air flows into the room from air supplying ports 12a, 12b, 12c and air supplying and discharging hood 10 through an air supplying duct 12 whereby the condition of negative pressure in a residence 1 may be eliminated.

Description

[Detailed description of the invention] (a), Industrial application field The present invention relates to an air supply/exhaust device suitable for use in a residence.

(b), Prior Art Conventionally, in residential kitchens, exhaust gases generated during cooking, such as combustion gas, are exhausted using range hoods.

(C) 9 Problems to be Solved by the Invention However, since range hoods require a relatively large volume of exhaust air, the operating noise of the fan is loud and has the drawback of damaging the indoor environment. In addition, modern homes are highly airtight, so when you run a range hood, it is not possible to supply enough air to match the amount of exhaust air, which not only causes poor exhaust, but also creates negative pressure inside the home, causing doors and windows to close. It becomes difficult to open and close, and various other problems such as a whistling phenomenon occur.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, the present invention aims to provide an air supply/exhaust device that can supply air corresponding to the exhaust to the part where exhaust is performed, and that does not harm the indoor environment. It is.

(d) Means for solving the zero problem, that is, the present invention provides exhaust means (9a, 9b, 9c110) in rooms (2, 3, 5, 6) that require ventilation, and The means are connected to the exhaust equipment (11d) via the exhaust duct (1o), and one or more air supply means (10, 12) are provided in the building.
a, 12b, 12c), the air supply means is connected to the air supply equipment (l1g) via the air supply duct (12), and the building (
1) Provide negative pressure detection means (11e, 11f) for detecting a negative pressure state with respect to the outside air inside, and the negative pressure detection means (lie,
air supply control means (1lf) for driving the air supply equipment (IIg) in accordance with the negative pressure state within the building (1) detected by the
11a).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description should not be limited to the descriptions in the drawings. The following r (el
The same applies to the column ``, action''.

(e) 0 effect With the above-described configuration, the present invention detects the negative pressure in the room caused by the exhaust operation by the exhaust equipment (11d) using the negative pressure detection means (11e, 11f), and the air supply equipment (11g)
This acts to supply outside air to the indoor side.

(f), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a schematic diagram of a house to which an embodiment of the air supply and exhaust system according to the present invention is applied.

As shown in FIG. 1, the house 1 has a plurality of rooms such as a living room 2.3, a bathroom 5, and a kitchen 6.
3. In the bathroom 5 and kitchen 6, an exhaust duct 9 constituting an air supply/exhaust device 7 according to the present invention is installed. Exhaust duct 9
has exhaust ports 9a19b, 9c and an air supply/exhaust hood 10,
Each of the living rooms 2.3, the bathroom 5, and the kitchen 6 are provided with an opening, and a shutter 9d is provided to open and close each exhaust port 9a, 9b, 9c, and a portion where the air supply/exhaust hood 10 and the exhaust duct 9 are connected. It is provided so that it can be driven freely. Exhaust duct l-
The tip of 9 is connected to an exhaust fan section 11C of an air supply/exhaust fan device 11 provided outdoors of the house 1, and an exhaust fan 11d is built in the exhaust fan section 11c. Further, the supply/exhaust fan device 11 is provided with a control section 1.1a, and the aforementioned shutter 9d is connected to the control section 11a via a shutter drive device (not shown). Further, the control unit 11a is connected to a terminal control unit llb installed in each room, and atmospheric pressure sensors lie and llf installed outdoors and in the kitchen 6, and the supply/exhaust fan device 11 is connected to an air supply fan l1g. It has a built-in air supply fan section 11h. An air supply duct 12 is connected to the air supply fan section 11h, and the air supply duct 12 has air supply ports 12a, 12b, and 12c provided in each room.
and an air supply/exhaust hood 10 are connected.

Since the house 1 has the above configuration, when ventilating, the resident turns on the terminal control unit llb provided in the room to be ventilated.

Then, the terminal control unit 11b outputs a signal S1 to the control section 11a of the air supply/exhaust fan device 11, and the control section 1
1a rotates the exhaust fan lld built in the exhaust fan section 11C of the air supply/exhaust fan device 11, and also opens the shack 9d in the room corresponding to the terminal control unit 11b from which the signal S1 has been output from the previously closed state. Drive to state.

Then, the rotation of the exhaust fan 11d causes the air in the room where the shutter 9 is opened to be exhausted outside through the exhaust duct 9. When the exhaust air continues for a predetermined period of time through the exhaust duct 9, the pressure inside the room gradually becomes negative compared to the outside, but the air pressure inside and outside the room is constantly monitored by the control unit 11a using the air pressure sensors lie and llf. and both atmospheric pressure sensor lie
, llf, that is, when the indoor negative pressure exceeds a predetermined specified value, the control section 11a rotates the air supply fan l1g of the air supply fan section 11h. Then, the air supply fan l1g causes outdoor air to flow into the room from the air supply ports 12a, 12b, 12c of each room and the air supply/exhaust hood 10 through the air supply duct 12, thereby reducing the negative pressure inside the house. Eliminate. The control unit 11a requests that the negative pressure state in the room be eliminated.
detects this from the difference between the atmospheric pressure sensors 11e and llf, and stops driving the air supply fan l1g.

In this way, for the room where the shutter 9a is opened,
Indoor air is continuously exhausted through the exhaust ports 9a, 9b, 9c or the air supply/exhaust hood 10, and whenever the pressure difference inside and outside the house 1 exceeds a predetermined value, the air pressure sensors lie, 11f are activated. The air supply fan 11g is driven by the control unit 11a, and the air supply duct 12 and the air supply port 12a,
12b, 12c and the air supply/exhaust hood 10 to supply outside air to each room. Therefore, the inside of the house may become negative pressure due to exhaust operation.1. Stay in a comfortable condition without any worries.

In addition, the supply and exhaust amount by the supply and exhaust fan device 11 is determined by the signal S1 from the terminal control unit llb and the atmospheric pressure sensor llb.
e, llf, the control unit 11
a is controlled so that optimal air supply and exhaust operations are always performed. That is, depending on the number of ventilation requests based on the signal S1 output from the terminal control unit 11b of each room, and therefore the number of rooms to be ventilated by the air supply/exhaust fan device 11, the exhaust amount by the exhaust fan lid of the air supply/exhaust fan device 11 is determined. is switched in stages, and as the number of rooms to be ventilated increases, the amount of air supply and exhaust increases, and as the number of rooms to be ventilated decreases, the amount of air supply and exhaust decreases. Similarly, the atmospheric pressure sensor lie,
When the negative pressure inside the house 1 due to llf increases, the amount of air supplied by the air supply fan l1g is controlled to increase in stages.

In addition, although the above-mentioned embodiment described the case where only one barometric pressure sensor 11e111f was provided in the kitchen 6 and one outdoors, it is possible to provide a plurality of barometric pressure sensors 11e and 11f as necessary. Of course.

Further, as an air supply means for the air supply duct 12, an air supply port 12a,
12b, 1.2c, supply/exhaust '77 It is not necessary to install one or more in each room that requires ventilation; as long as the amount of air supply to the entire house is secured, one or more can be installed as necessary. , any number can be provided.

(g) 8 Effects of the Invention As explained above, according to the present invention, the living room 2.3,
Exhaust vent 9a in rooms that require ventilation such as kitchen 6 and bathroom 5
, 9b, 9c, providing exhaust means such as an air supply/exhaust hood 10,
These exhaust means are connected to an exhaust fan li via an exhaust duct 9.
In addition to connecting to exhaust equipment such as d, etc., one or more air supply ports 12a, 12b, 12c,
An air supply means such as a supply/exhaust hood 10 is provided, and the air supply means is connected to an air supply equipment such as an air supply fan l1g via an air supply duct 12 to detect a negative pressure state with respect to outside air in the building 1. Negative pressure detection means such as sensors lie and llf are provided, and air supply control means such as a control unit 11a is provided for driving the air supply equipment according to the negative pressure state in the building detected by the negative pressure detection means. With this configuration, the negative pressure inside the room that occurs due to the exhaust operation is detected by the negative pressure detection means, and the air supply equipment is used to
Outside air can be supplied to the indoor side, and even in modern homes where the indoor airtightness is high, an appropriate air supply can be ensured and good exhaust operation can be maintained. In addition, since the interior of the room does not become excessively negative pressure, it is possible to prevent the difficulty of opening and closing doors and windows, and the occurrence of whistling phenomena.

Note that when the air supply/exhaust fan device 11 is installed outdoors, it is possible to prevent the operating noise of the fan from entering the room and damaging the indoor environment.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a house to which an embodiment of the air supply and exhaust system according to the present invention is applied. 1...Residence (building) 2.3-...Room (living room) 5...Room (bathroom) 6...Room (kitchen) 7... Supply/exhaust device 9...Exhaust ducts 9a, 9b, 9c...Exhaust means (exhaust port) 10
... Exhaust means, air supply means (supply and exhaust hood) 11
a...Air supply control means (control unit) 11d...
...Exhaust equipment (exhaust fan) 11e111f...
・Negative pressure detection means (atmospheric pressure sensor) 11g...Air supply equipment (air supply fan) 12...
...Air supply ducts 12a, 12b, 12c---Air supply means (
Air supply port) Applicant: Mitsui Construction Co., Ltd. Matsushita Joko Co., Ltd. Agent: Patent attorney: Shinji Ai1) (and 2 others)

Claims (1)

[Claims] In a building having a plurality of rooms, an exhaust means is provided in the room that requires ventilation, and the exhaust means is connected to an exhaust equipment via an exhaust duct, and one or more rooms in the building are provided with an exhaust means. An air supply means is provided, the air supply means is connected to air supply equipment via an air supply duct, a negative pressure detection means is provided for detecting a negative pressure state with respect to outside air in the building, and the negative pressure detection means detects a state of negative pressure with respect to outside air within the building. An air supply/exhaust system comprising an air supply control means for driving the air supply equipment according to a negative pressure state in a building.