JP2013195008A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation system capable of reducing electric power consumption and loss of air conditioning energy.SOLUTION: A ventilation system includes: a ventilation device 30 installed in a toilet or a bathroom in a building and capable of executing constant ventilation for continuously exhausting indoor air; and a heat exchange ventilation device 1 including a body installed in a space under a roof of the building and simultaneously performing air supply and air exhaust for a heat recovery function between the indoor air and outside air. The ventilation device 30 can execute constant ventilation for continuously exhausting air. The heat exchange ventilation device 1 includes motors for driving blowers on an air supply side and an air exhaust side separately, can execute constant ventilation continuously, and stops the motor for an air exhaust blower 16 on the basis of an environmental state including an air temperature and a season condition and optionally set conditions.

Description

  The present invention provides a heat exchange ventilator that performs air supply and exhaustion at the same time and performs ventilation while exchanging heat between the air supply and exhaust, and a ventilator that includes only a ventilator that exhausts indoor dirty air. It is about the system.

  As a ventilation system for a building, for example, one disclosed in Japanese Patent No. 4678092 is known.

  When the ventilation system disclosed in the above patent publication is ventilating indoors / outdoors in the room side of the building in a state where ventilation is always performed in the bathroom, toilet, etc. of the building, the amount of air exhausted in the room side Therefore, the problem is that the generation of noise such as a draft or the amount of air sucked by the air discharge system of the bathroom or toilet is reduced and the ventilation efficiency is lowered.

  Therefore, in order to ventilate the entire building in a well-balanced manner, heat exchange ventilation is performed so that the supply air volume in the heat exchange ventilator is equivalent to the sum of the exhaust air volume of the heat exchange ventilator and the exhaust air volume of the ventilator. The diameter of the air supply fan of the apparatus is set larger than that of the exhaust fan, or the diameter of the duct of the air supply path is set larger than the diameter of the duct of the exhaust path.

Japanese Patent No. 4678092

  The ventilation system disclosed in Patent Document 1 is a ventilation system that performs ventilation while exchanging heat between exhaust and supply air at all times for 24 hours.

  Ventilation while exchanging heat can take in fresh air into the room and discharge dirty air outside the room while reducing heat loss during cooling and heating. May continue to operate 24 hours throughout the year. In this case, the air supply blower and the exhaust blower always operate. In the mid-term, when there is almost no difference between the outside air temperature and the room temperature in the building, such as in spring and autumn, heat exchange during air conditioning is small, so heat exchange between supply and exhaust may not be necessary. . In addition, the air supply blower and the exhaust blower always operate during cool time periods such as summer nights.

  As described above, in the conventional ventilation system, even when heat exchange is not necessary, the supply blower and the exhaust blower always operate, and there is a problem in that extra power is generated. .

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a ventilation system that can reduce power consumption and air-conditioning energy loss.

  In order to solve the above-described problem, the ventilation system according to the present invention is installed in a dirty zone including a toilet or bathroom of a building, and a ventilation device capable of performing continuous ventilation for continuously exhausting indoor air; A main body is installed in the ceiling space of the building, and includes a heat exchange ventilator that simultaneously performs air supply and exhaust with a heat recovery function between indoor air and outside air. A ventilation system with separate motors for air-side and exhaust-side blower drive, which can be continuously ventilated continuously, based on environmental conditions including air temperature and seasonal conditions or arbitrarily set conditions The motor of the exhaust fan of the heat exchange ventilator is stopped.

  According to the present invention, when the motor of the exhaust fan of the heat exchanging ventilator is stopped, it is possible to reduce power consumption and air conditioning energy loss in the intermediate period or in a period or time when heat exchange is not necessary.

It is sectional drawing (from the side) of the heat exchange ventilation apparatus which concerns on embodiment of this invention. It is a block diagram which shows the exhaust air path of the heat exchange ventilation apparatus of FIG. It is a block diagram which shows the supply air path of the heat exchange ventilation apparatus of FIG. It is the figure which looked at the heat exchange ventilation apparatus of FIG. 1 from the lower side. It is the schematic of the ventilation system of the building using the heat exchange ventilation apparatus and ventilation apparatus of FIG. It is a connection diagram of the control apparatus and external switch of the heat exchange ventilation apparatus of FIG.

  Below, the ventilation system concerning an embodiment of the invention is explained in detail based on a drawing. In addition, this invention is not limited by this embodiment.

Embodiment.
FIG. 1 is a cross-sectional view of a heat exchange ventilator according to an embodiment of the present invention.
As shown in FIG. 1, the heat exchange ventilator 1 is installed behind the ceiling surface 2 of the building, and a design panel 3 is provided on the lower surface of the heat exchange ventilator 1. It is a normal installation form that only the design panel 3 is exposed in the room. An exhaust dust removal filter 23 is provided in the design panel opening 22 of the design panel 3, and dust is removed before the room air is taken into the heat exchange ventilator 1. The heat exchange ventilator 1 of the present embodiment has a ceiling cassette type configuration, and the main body of the heat exchange ventilator of the present invention is the whole of the ceiling cassette type heat exchange ventilator. To do.

  As shown in FIG. 1, a heat exchanger 12 for performing heat exchange between exhaust and supply air, an exhaust blower 16, and a supply blower 20 are provided inside the heat exchange ventilation apparatus 1. ing. The exhaust blower 16 includes an exhaust drive motor 13, an exhaust fan 14, and an exhaust fan casing 15. The exhaust drive motor 13 is attached to the outer sheet metal 4 that forms the outer shell of the heat exchange ventilator 1 with the motor drive shaft facing downward. The air supply blower 20 includes an air supply drive motor 17, an air supply fan 18, and an air supply fan casing 19.

FIG. 2 is a configuration diagram illustrating an exhaust air passage of the heat exchange ventilator of FIG.
The exhaust air passage will be described below with reference to FIG.
The indoor air is discharged to the outside as indicated by the exhaust air passage 28, but the exhaust is a dust exhaust filter provided in the design panel opening 22 that is a part of the design panel 3 on the lower surface of the heat exchange ventilator 1. After passing through 23, the air is sucked into the heat exchange ventilator 1 from the underplate opening 27 provided in the underplate 26 on the lower surface of the heat exchanging ventilator 1, and sucked into the heat exchanger 12 to supply air. Heat exchange between the two and immediately after passing through the heat exchanger 12 vertically upward, it is sucked into the exhaust blower 16 located above, discharged into the exhaust duct connection port, and discharged to the outside. It is composed.

FIG. 3 is a configuration diagram showing a supply air path of the heat exchange ventilator 1 of FIG.
The air supply air path will be described below with reference to FIG.
Outdoor air is supplied into the room as indicated by the air supply air passage 29. Fresh outdoor air is taken into the heat exchange ventilator 1 via the air supply duct connection port 6. The outdoor air taken into the heat exchange ventilator 1 is dust-removed by the air supply insect removing filter 24 and the air supply dust removing filter 25, and then enters the heat exchanger 12 to exchange heat with the exhaust. Then, the air enters into the air supply air duct box 21, is sucked into the air supply blower 20, and is supplied into the room through the indoor air supply duct connection port 10.

FIG. 4 is a bottom view of the heat exchange ventilator of FIG.
As shown in FIG. 4, the exhaust duct 7 is connected to the exhaust duct connection port 5 on one side of the heat exchange ventilator 1, the air supply duct 8 is connected to the air supply duct connection port 6, and the respective ducts are connected. Through the outside wall 9 of the building to the outside and supply fresh air to the room.
In addition, an indoor air supply duct connection port 10 for distributing air into the room is provided on the side surface opposite to the side surface on which the exhaust duct connection port 5 and the air supply duct connection port 6 are provided. An indoor air supply duct 11 is connected to the indoor air supply duct connection port 10, and fresh air taken from the outside is supplied to the living room space through the indoor air supply duct 11.

FIG. 5 shows an outline of a building ventilation system using the heat exchange ventilator 1 of FIG.
In FIG. 5, the heat exchange ventilator 1 is attached to the indoor ceiling of the building, and an exhaust duct 7 and an air supply duct 8 are provided on a balcony or the like. An air supply duct 11 is connected to the indoor air supply duct connection port 10 for the outdoor air of the heat exchange ventilator 1, and the air supply ducts 11 are each open to a living room.

  The ventilation path of the bathroom / toilet etc. is connected to the ventilation device 30 attached to the dirty zone of the bathroom / toilet etc., connected to the exhaust duct 31 of the balcony, and the air in the dirty zone of the bathroom / toilet etc. is outdoors. Discharged. Here, it is assumed that the ventilator 30 can switch the driving speed with a driving switch 32 or the like.

  In the ventilation system shown in FIG. 5, when the heat exchange ventilator 1 and the ventilator 30 are constantly ventilated, the heat exchange ventilator 1 exchanges heat. A kind of ventilation is possible. Furthermore, by making the ventilation device 30 in the bathroom or toilet weakly operated, the air volume balance between the exhaust air and the air supply is not greatly broken, and the first type ventilation is possible.

  Further, in the ventilation system shown in FIG. 5, when the heat exchange ventilator 1 stops only the exhaust blower 16, only the supply blower 20 is ventilated, and the ventilator 30 is always ventilated, the non-heat exchange first Species ventilation is possible. Furthermore, by setting the ventilation device 30 in the bathroom or toilet to a strong operation, it is possible to interpolate the exhaust stop amount of the heat exchange ventilation device 1, and the first-rate ventilation is possible without greatly disrupting the balance of the air volume between the exhaust and the supply air. It is.

Next, the control system of the ventilation system shown in FIG. 5 will be described.
FIG. 6 is a connection diagram of the control device 33 and the external switches 34 to 36 of the heat exchange ventilator 1.
The control device 33 controls the exhaust blower 16 and the supply air blower 20. The ventilation operation switch 34 is for turning on and off the operation of the heat exchange ventilation apparatus 1. The ventilation operation switch 34 is provided, for example, on the wall surface of the room so that the resident can easily operate it. The ventilation operation switch 34 incorporates an LED or the like, and this LED is lit when the ventilation device is “ON”.

  As shown in FIG. 6, by providing input terminals of terminal blocks I to V and supplying power to the terminal block I and the terminal block II, the control circuit 33a configured by a microcomputer or the like is activated. Furthermore, the ventilation operation switch 34 and the terminal block III are connected and the ventilation operation switch 34 is set to “ON”, whereby the heat exchange ventilator 1 is operated strongly. Furthermore, the heat exchange ventilator 1 is in a weak operation by connecting the strength change switch 35 and the terminal block IV and turning the strength change switch 35 to “ON”. Further, the exhaust blower 16 is stopped by connecting the exhaust stop switch 36 and the terminal block V and setting the exhaust stop switch 36 to “ON”. Even when the exhaust blower 16 is stopped, the air supply blower 20 continues the ventilation operation.

  In the present embodiment, the exhaust stop means of the heat exchange ventilator 1 is realized by an operation switch. However, the present invention is not limited to this, and the exhaust stop may be performed by an outside air temperature sensor. For example, during the ventilation operation, the control device 33 always monitors the outside temperature detected by the outside temperature detecting device (external temperature sensor) 37. If the outside air temperature detected by the outside air temperature detection device 37 is, for example, 15 degrees or more, it is determined that the middle period has been reached. If it is determined that the intermediate period is reached, the exhaust blower 16 is stopped. Even when the exhaust fan 16 is stopped by the control circuit 33a, the air supply fan 20 continues the ventilation operation.

  Furthermore, although the exhaust stop means of the heat exchange ventilator 1 as described above has been described with respect to the example realized by the temperature detection device, the exhaust stop means is not limited to this, and the exhaust stop may be performed by a timer. For example, during the ventilation operation, the timer is controlled by the control device 33, the timer is set in the middle of summer and in the middle of the summer, and the exhaust blower 16 is stopped when the set time is reached. Even when the exhaust fan 16 is stopped by the control circuit 33a, the air supply fan 20 continues the ventilation operation.

  When the exhaust blower 16 is stopped as described above, it is possible to reduce power consumption of the heat exchange ventilator 1 and loss of air conditioner energy in the intermediate period or a time period or time period when heat exchange is not necessary.

  1 heat exchange ventilator, 2 ceiling surface, 3 design panel, 4 outer sheet metal, 5 exhaust duct connection port, 6 air supply duct connection port, 7 exhaust duct, 8 air supply duct, 9 outer wall, 10 indoor air supply duct connection port , 11 Indoor air supply duct, 12 Heat exchanger, 13 Exhaust drive motor, 14 Exhaust fan, 15 Exhaust fan casing, 16 Exhaust fan, 17 Supply air drive motor, 18 Supply fan, 19 Supply fan casing, 20 Supply air Blower, 21 Air supply box, 22 Design panel opening, 23 Exhaust dust removal filter, 24 Air supply insect filter, 25 Air supply dust removal filter, 26 Under plate, 27 Under plate opening, 28 Exhaust air passage, 29 Air supply air passage, 30 ventilator, 31 exhaust duct, 32 operation switch, 33 control device, 33a control circuit, 34 Ventilation operation switch, 35 strength change switch, 36 exhaust stop switch, 37 outside air temperature detection device.

Claims (4)

A ventilator that is installed in a dirty zone including a toilet or bathroom of a building and that is capable of continuous ventilation that continuously exhausts indoor air; and
A heat exchange ventilator that has a main body installed in the ceiling space of the building and performs supply and exhaust of air at the same time with a heat recovery function between indoor air and outside air;
With
The heat exchange ventilator is
In a ventilation system that is equipped with separate motors for driving the blower on the air supply side and the exhaust side, and that can be continuously ventilated continuously,
The ventilation system characterized by stopping the motor of the exhaust air blower of the heat exchange ventilator based on environmental conditions including temperature and seasonal conditions or arbitrarily set conditions. With external contacts including switches,
The ventilation system according to claim 1, wherein the heat exchange ventilator stops a motor of the exhaust fan by the external contact. The ventilation system according to claim 1, further comprising an outside air temperature sensor that detects an outside air temperature, wherein the heat exchange ventilator stops a motor of the exhaust blower based on an output of the outside air temperature sensor. With a timer,
The ventilation system according to claim 1, wherein the heat exchange ventilator stops a motor of the exhaust blower based on an output of the timer.

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