JP2020153616A - Ventilation system - Google Patents

Abstract

A ventilation system for supplying comfortable air to a room. A heat exchange type ventilator (1) comprising a supply air blower (18), an exhaust air blower (17), and a heat exchange element (6), and a bathroom heater/dryer (30) having a humidification mode for humidifying air by humidification means (42). , a supply air passage 7 through which air is blown from the outside to the room by a supply air blower 18, and an exhaust air passage 8 through which air is blown from the room to the outdoors by the exhaust air blower 17, and heat exchange The element 6 exchanges heat between the air passing through the supply air passage 7 and the air passing through the exhaust air passage 8, and the air humidified by the humidifying means 42 passes through the supply air passage downstream of the heat exchange element 6. A ventilation system characterized in that it flows into 7. [Selection drawing] Fig. 7

Description

The present invention relates to a ventilation system in a building.

As a ventilation system for a building, there is known a ventilation system using a ventilation device that introduces outside air from an outside air air supply port and supplies it into a room via a built-in heat exchange element (see, for example, Patent Document 1). This ventilation system solves the problem that the air supply blower and the exhaust blower are always in operation even when heat exchange is not required, resulting in extra power consumption.

Japanese Unexamined Patent Publication No. 2013-195008

In such a conventional ventilation system, it is not possible to positively control humidification, and when it is desired to humidify the air in the room, there is a problem that the user must operate a humidifier or the like in each room. there were.

Therefore, the present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a ventilation system that supplies comfortable air to a room by a humidifying function.

Then, in order to achieve this object, the ventilation system according to one aspect of the present invention includes a ventilation device including a supply air blower section, an exhaust blower section, a heat exchange element, and a humidification section that humidifies the air. It is equipped with a humidified air blower having a mode, an air supply air passage in which air is blown from the outside to the room by the air supply air blower, and an exhaust air passage in which air is blown from the room to the outside by the exhaust air blower. The heat exchange element exchanges heat between the air passing through the air supply air passage and the air passing through the exhaust air passage, and the air humidified by the humidifying portion flows into the air supply air passage on the downstream side of the heat exchange element. It is a ventilation system that achieves its intended purpose.

According to the present invention, it is possible to provide a ventilation system that supplies comfortable air to a room by a humidifying function.

Perspective view of the heat exchange type ventilator according to the first embodiment of the present invention. Cross-sectional view of the same heat exchange type ventilator Block diagram showing the configuration of the same heat exchange type ventilator Sectional drawing of the bathroom heater / dryer which concerns on Embodiment 1 of this invention Perspective view of the bathroom heater / dryer Block diagram showing the configuration of the bathroom heater / dryer Schematic diagram of a house provided with a ventilation system according to the first embodiment of the present invention. Schematic diagram showing the air supply air passage of the ventilation system Schematic diagram showing the exhaust air passage of the ventilation system Flow chart showing the control method of the ventilation system Flow chart showing the control method of the ventilation system

The ventilation system according to one aspect of the present invention includes a ventilation device including an air supply air blowing unit, an exhaust air blowing unit, and a heat exchange element, and a humidifying air blowing device having a humidification mode for humidifying air by the humidifying unit. The heat exchange element is provided with an air supply air passage in which air is blown from the outside to the room by the air supply air blower and an exhaust air passage in which air is blown from the room to the outside by the exhaust air blower. Heat exchange is performed between the passing air and the air passing through the exhaust air passage, and the air humidified by the humidifying portion flows into the air supply air passage on the downstream side of the heat exchange element.

According to this configuration, the humidified air can be supplied to the living room by the ventilation device, so that more comfortable air can be supplied by performing active humidification control. Further, for example, if a humidifying air blower such as a bathroom heater / dryer already installed in the bathroom is used, the temperature or humidity of the sucked bathroom air can be obtained simply by connecting the ventilation device to the existing humidifying air blower later. It will be a ventilation system that can supply comfortable air to the entire building.

Further, the humidifying air blower includes a pumping pipe, a rotating plate, and a water storage unit. The pumping pipe sucks up the liquid stored in the water storage part, and the rotating plate sucks up the liquid sucked up by the pumping pipe by rotating. It may be configured to be miniaturized.

According to this configuration, the amount of humidification can be finely controlled by controlling the rotation speed of the pumping pipe.

Further, the air passage changing means may be provided on the air passage connecting the ventilation device and the humidifying air blowing device.

According to this configuration, the amount of air flowing into the air supply air passage from the humidified air blower can be adjusted by the air passage changing means.

Further, the humidifying blower may be configured to have a heating means for heating the air.

According to this configuration, the amount of humidification can be increased by the heating means, and more comfortable air can be supplied by warming the air to be supplied even in the operation without humidification.

Further, the air heated by the heating means may be configured to flow into the air supply air passage.

As a result, the air heated by the heating means can be blown to the living room by the ventilation device. As a result, more comfortable air can be supplied.

Further, the air humidified by the humidifying portion may be configured to flow into the main body of the ventilation device.

As a result, the distance from the air outlet to the living room can be secured, so that the sound generated at the time of blowing air can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
First, the heat exchange type ventilation device according to the ventilation system of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a heat exchange type ventilator according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the heat exchange type ventilator according to the first embodiment of the present invention.

As shown in FIGS. 1 and 2, the heat exchange type ventilator 1 has a box-shaped main body. For example, on the side surface of the main body, an outside air suction port 2, an indoor air exhaust port 3 (indoor side suction port), an outside air air supply port 4 (indoor side air outlet), and a communication port 19 are provided. An indoor air suction port 5 is provided on, for example, the lower surface of the main body. The main body is installed behind the ceiling of the living room.

The outside air supply port 4 and the communication port 19 are provided on a side surface facing the side surface where the outside air suction port 2 or the indoor air exhaust port 3 is provided.

Ducts can be connected to the outside air suction port 2, the indoor air exhaust port 3, the outside air air supply port 4, and the communication port 19, respectively. The duct connected to the outside air suction port 2 and the indoor air exhaust port 3 is routed to the outer wall surface of the building to communicate with the outdoor air outside the building. The duct connected to the outside air supply port 4 communicates with the ceiling surface or the wall surface of the living room and communicates with the indoor air. The duct connected to the communication port 19 communicates with the bathroom heater / dryer 30, which will be described later. The air from the bathroom heater / dryer 30 flows into the main body of the heat exchange type ventilation device 1 from the communication port 19. The indoor air suction port 5 is provided on a surface exposed to the living room and communicates with the living room. The living room is provided with an indoor air outlet 90 (see FIG. 7). The air to be supplied is blown out to the living room from the indoor side outlet 90.

As shown in FIG. 2, a heat exchange element 6, a first control unit 13, an exhaust air blower unit 17, and an air supply air blower unit 18 are provided inside the heat exchange type ventilator 1.

The air supply air blowing unit 18 includes an air supply fan 9 and an air supply motor 11. The air supply fan 9 is rotated by the air supply motor 11. The air supply motor 11 is, for example, a DC motor or the like.

The exhaust blower portion 17 includes an exhaust fan 10 and an exhaust motor 12. The exhaust fan 10 is rotated by the exhaust motor 12. The exhaust motor 12 is, for example, a DC motor or the like.

The operation of the exhaust air blower unit 17 and the air supply air blower unit 18 is controlled by the first control unit 13. Specifically, the first control unit 13 controls the rotation speeds of the air supply motor 11 and the exhaust motor 12.

The heat exchange type ventilator 1 has an air supply air passage 7 and an exhaust air passage 8.

In the air supply air passage 7, the outdoor air taken into the heat exchange type ventilation device 1 is heat-exchanged with the air that passes through the heat exchange element 6 and is exhausted. After that, the outdoor air is sucked into the air supply fan 9 and supplied into the room from the indoor air outlet 90. That is, the air supply air passage 7 sucks fresh outdoor air (air supply air) from the outside air suction port 2, passes through the heat exchange element 6 inside the heat exchange type ventilation device 1, and enters the room from the outside air air supply port 4. It is a supply route.

The air exhausted in the exhaust air passage 8 is sucked into the main body from the indoor air suction port 5, passes through the heat exchange element 6, exchanges heat with the air to be supplied, and becomes the exhaust fan 10. Be sucked in. The air sucked into the exhaust fan 10 is discharged to the outside from the indoor air exhaust port 3. That is, the exhaust air passage 8 is a path for sucking contaminated indoor air (exhaust air) from the indoor air suction port 5 and exhausting it to the outside from the indoor air exhaust port 3 through the heat exchange element 6.

The heat exchange element 6 has a heat recovery function of supplying the heat amount of the exhausted air to the supplied air or supplying the heat amount of the supplied air to the heat amount of the exhausted air. There is. The heat exchange element 6 is arranged at a position where the air supply air passage 7 and the exhaust air passage 8 intersect.

The heat exchange type ventilation device 1 may include a bypass exhaust air passage. Switching between the heat exchange exhaust air passage and the bypass exhaust air passage, that is, switching between the exhaust air passage passing through the heat exchange element 6 and the exhaust air passage not passing through the heat exchange element 6 may be performed by a damper (not shown).

Further, the heat exchange type ventilation device 1 includes an indoor air supply temperature sensor 14, an indoor exhaust temperature sensor 15, and an indoor exhaust humidity sensor 16.

The indoor air supply temperature sensor 14 is provided in the air supply air passage 7 and detects the temperature of the air (SA) blown out from the outside air air supply port 4 of the heat exchange type ventilator 1. The indoor exhaust temperature sensor 15 is provided in the exhaust air passage 8 and detects the temperature of the air (RA) sucked from the indoor air suction port 5 of the heat exchange type ventilation device 1. The indoor exhaust humidity sensor 16 is provided in the exhaust air passage 8 and detects the humidity of the air (RA) sucked from the indoor air suction port 5 of the heat exchange type ventilation device 1.

The indoor exhaust temperature sensor 15 and the indoor exhaust humidity sensor 16 may be integrated temperature and humidity sensors instead of being separate. Further, the indoor exhaust temperature sensor 15 and the indoor exhaust humidity sensor 16 may be provided in the first operation unit 20, which will be described later.

Further, the first control unit 13 may be provided outside the heat exchange type ventilation device 1 instead of inside.

Next, the configuration of the heat exchange type ventilator will be described with reference to FIG. FIG. 3 is a block diagram showing a configuration of a heat exchange type ventilator according to the first embodiment of the present invention.

The heat exchange type ventilation device 1 includes a first control unit 13 and a first operation unit 20.

The first control unit 13 controls the air supply air blowing unit 18 and the exhaust air blowing unit 17. Specifically, the first control unit 13 controls the rotation speed of the air supply motor 11 and the rotation speed of the exhaust motor 12. As a result, the first control unit 13 controls the supply air volume and the exhaust air volume of the heat exchange type ventilation device 1.

The first operation unit 20 is provided in, for example, in a living room, and instructs the first control unit 13 to operate at least one of the air supply air blowing unit 18 and the exhaust air blowing unit 17. Further, temperature information from the indoor air supply temperature sensor 14, temperature information from the indoor exhaust temperature sensor 15, and humidity information from the indoor exhaust humidity sensor 16 are input to the first control unit 13.

Next, the bathroom heater / dryer according to the ventilation system of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a cross-sectional view of the bathroom heater / dryer according to the first embodiment of the present invention. FIG. 5 is a perspective view of the bathroom heater / dryer according to the first embodiment of the present invention.

The bathroom heater / dryer 30 is installed behind the ceiling of the bathroom. The bathroom heater / dryer 30 is connected to, for example, a hot water pipe on the side surface and a water supply pipe on the front surface when viewed from an inspection port (not shown).

The bathroom heater / dryer 30 has a front panel 31, a rectangular main body case 32, and a ventilation box 60.

The front panel 31 is attached to the lower surface of the main body case 32 at a position exposed to the bathroom. The front panel 31 is provided with a bathroom air suction port 33 and a bathroom air outlet 34. In the bathroom heater / dryer 30, the air in the bathroom is taken into the main body case 32 from the bathroom air suction port 33. The air that has passed through the main body case 32 is blown out from the air outlet 34 in the bathroom.

The air outlet 34 in the bathroom is provided with a louver (not shown) which is a means for changing the wind direction of the blown air.

The main body case 32 has a bathroom outside air outlet 35 and a bathroom exhaust port 36. Further, the main body case 32 includes a circulation fan 44, a circulation motor 45, a heating means, a humidifying means 42, and a water storage unit 49 inside.

The bathroom outside air outlet 35 is provided, for example, on the side surface of the main body case 32. A connection duct 80 is connected to the outlet 35 outside the bathroom and communicates with the heat exchange type ventilation device 1. The air that has passed through the main body case 32 is blown out from the air outlet 35 outside the bathroom and flows into the heat exchange type ventilator 1.

The bathroom exhaust port 36 is provided, for example, on the side surface of the main body case 32. The bathroom exhaust port 36 communicates with the ventilation box 60. The air that has passed through the main body case 32 is blown out from the bathroom exhaust port 36 and exhausted to the outside. The ventilation box 60 incorporates a bathroom ventilation fan 61. The ventilation box 60 is connected to, for example, the side surface of the main body case 32.

The heating means includes a first heating means 40 and a second heating means 43.

The first heating means 40 is installed above, for example, the bathroom air suction port 33, and heats the air sucked from the bathroom air suction port 33. The second heating means 43 is installed above, for example, the air outlet 34 in the bathroom, and reheats the air whose temperature has dropped after being humidified by the humidifying means 42 described later. The first heating means 40 and the second heating means 43 are, for example, hot water coils, and are configured so that hot water supplied from the water heater circulates.

The circulation fan 44 is rotated based on the operation of the circulation motor 45. The air in the bathroom is sucked from the bathroom air suction port 33 based on the rotation of the circulation fan 44, and the sucked air is warmed by the first heating means 40 and then guided to the humidifying means 42.

The humidifying means 42 humidifies the air heated by the first heating means 40. The humidifying means 42 includes a crushing motor 37, a pumping pipe 46, a centrifugal crushing disk 47, and a crushing wall 48.

The crushing motor 37 is fixed to, for example, the upper part of the main body case 32. The output shaft 50 of the crushing motor 37 extends downward, and a pumping pipe 46 is attached to the lower end of the output shaft 50. That is, the pumping pipe 46 is fixed to the output shaft 50, and the pumping pipe 46 rotates integrally with the output shaft 50.

A centrifugal crushing disk 47 is provided above the pumping pipe 46 in a horizontal direction. The centrifugal crushing disk 47 is rotated integrally with the pumping pipe 46 to scatter the water wound up by the pumping pipe 46.

The water storage unit 49 is located below the humidifying means 42. A water supply unit 52 provided with a water supply valve 51 is arranged at a lateral position of the water storage unit 49, and water is supplied to the water supply unit 52 from a water supply pipe. When the water supply valve 51 is opened according to the instruction of the second control unit 56, which will be described later, water is dropped from the water supply pipe to the water storage unit 49 via the water supply valve 51.

A crushing wall 48 is formed on the opposite side of the circulation fan 44 with respect to the pumping pipe 46. The crushing wall 48 includes a plurality of crushing frames 53. The crushing wall 48 is formed in a curved shape so as to surround the centrifugal crushing disk 47.

A gas-liquid separation device 55 is arranged on the opposite side of the pumping pipe 46 with respect to the crushing wall 48. In the gas-liquid separation device 55, water particles contained in the warm air that has passed through the crushing wall 48 are removed, and highly humid air containing water vapor is guided to the second heating means 43. The water droplets removed by the gas-liquid separation device 55 fall into the water storage unit 49.

When water is supplied from the water supply section 52 to the water storage section 49 and the pumping pipe 46 is rotated by the rotation of the crushing motor 37, the water in the water storage section 49 is wound upward along the inner peripheral surface of the pumping pipe 46 by centrifugal force. The rolled-up water is scattered around by the centrifugal crushing disk 47 as fine water droplets. The scattered fine water droplets collide with the crushing wall 48 and the crushing frame 53. By colliding with the crushing wall 48 and the crushing frame 53, the water particles are crushed into finer water particles. The crushed water droplets humidify the air passing through the humidifying means 42. According to this centrifugal crushing method, the amount of humidification can be controlled by controlling the rotation speed of the crushing motor 37. Further, since the size of the water droplet used for humidification can be made very small (for example, less than 1 micron), the possibility of causing discomfort to the user is reduced.

The air sucked from the bathroom air suction port 33 passes through the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, and the second heating means 43 in this order.

Next, the air flow of the bathroom heater / dryer 30 will be described. The air flow of the bathroom heater / dryer 30 is a first flow flowing through the circulation air passage 70, a second flow flowing through the bathroom exhaust air passage 71, and a third flow flowing through the connecting air passage 72. Including.

The circulation air passage 70 is an air passage in which the air in the bathroom is blown from the bathroom air suction port 33 to the air outlet 34 in the bathroom. The air passing through the first flow passes in the order of the bathroom air suction port 33, the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, the second heating means 43, and the air outlet 34 in the bathroom.

The bathroom exhaust air passage 71 is an air passage through which air in the bathroom is blown from the bathroom air suction port 33 to the bathroom exhaust port 36. The air passing through the second flow passes in the order of the bathroom air suction port 33, the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, the second heating means 43, and the bathroom exhaust port 36.

The connecting air passage 72 is an air passage through which the air in the bathroom is blown from the bathroom air suction port 33 to the outside air outlet 35 of the bathroom. The air passing through the third flow passes in the order of the bathroom air suction port 33, the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, the second heating means 43, and the out-of-bathroom outlet 35.

Next, the operation of the bathroom heater / dryer 30 will be described.

The bathroom heater / dryer 30 has operations such as a heating mode, a humidification mode, and a ventilation mode.

The heating mode is a mode in which the air sucked from the bathroom air suction port 33 is warmed and blown out. When the bathroom heater / dryer 30 is instructed to perform heating operation, the second control unit 56 supplies hot water (about 80 ° C.) from a water heater (not shown) to the first heating means 40 via a hot water pipe. Then, the circulation fan 44 is driven in a state where the first heating means 40 is sufficiently warmed (about 60 ° C.). By operating the circulation fan 44, the bathroom air is sucked from the bathroom air suction port 33. Then, the air sucked from the bathroom air suction port 33 passes through the first heating means 40 and is heated. Then, the heated bathroom air is blown out into the bathroom from the air outlet 34 in the bathroom or out of the bathroom from the air outlet 35 outside the bathroom. That is, the air warmed by the bathroom heater / dryer 30 is blown to the circulating air passage 70 or the connecting air passage 72.

In the heating mode, the second heating means 43 may be operated in addition to the first heating means 40.

Further, a cool air operation mode in which air is blown to the circulation air passage 70 without operating the first heating means 40 may be provided.

The ventilation mode is a mode in which the air sucked from the bathroom air suction port 33 is exhausted to the outside. When the bathroom heater / dryer 30 is instructed to perform bathroom ventilation operation, the second control unit 56 operates the circulation fan 44. By operating the circulation fan 44, the bathroom air is sucked from the bathroom air suction port 33. The bathroom air sucked into the bathroom heater / dryer 30 is blown out of the bathroom from the outside outlet 35 of the bathroom or outdoors from the exhaust port 36 of the bathroom. That is, the air exhausted from the bathroom heater / dryer 30 is blown into the bathroom exhaust air passage 71 or the connecting air passage 72.

The humidification mode is a mode in which the air sucked from the bathroom air suction port 33 is humidified by the humidifying means 42 and blown.

When the humidification operation is instructed, the second control unit 56 first causes the first heating means 40 to supply hot water (about 80 ° C.) from the water heater via the hot water pipe, and the first heating means 40 is sufficient. The circulation fan 44 is driven in a warm state (about 60 ° C.). When the circulation fan 44 is driven, the air sucked from the bathroom air suction port 33 passes through the first heating means 40 and is heated. Next, the air heated by the first heating means 40 passes through the humidifying means 42. Here, water is supplied to the water storage unit 49 via the water supply pipe, and the air is humidified by the humidifying means 42 using the water of the water storage unit 49. At this time, the temperature of the air is lowered by being humidified, but the humidified air is sent to the second heating means 43. Hot water is supplied to the second heating means 43 via a hot water pipe, and the humidified air passes through the sufficiently warm second heating means 43 and is reheated. Then, the reheated bathroom air is blown into the bathroom from the air outlet 34 in the bathroom or out of the bathroom from the air outlet 35 outside the bathroom. That is, the air humidified by the bathroom heater / dryer 30 is blown to the circulating air passage 70 or the connecting air passage 72.

The bathroom heater / dryer 30 includes a means for changing the air passage. The air passage changing means includes a first air passage changing means 38 and a second air passage changing means 39.

The switching between the circulation air passage 70 and the bathroom exhaust air passage 71 is performed by the first air passage changing means 38. Further, the switching between the circulating air passage 70 and the connecting air passage 72 is performed by the second air passage changing means 39. The first air passage changing means 38 and the second air passage changing means 39 each include, for example, a stepping motor and an air passage changing plate.

The second control unit 56 is provided on the upper surface of the main body of the bathroom heater / dryer 30, for example, and controls the operation of at least one of the bathroom ventilation fan 61, the circulation fan 44, and the air passage changing means.

Next, the configuration of the bathroom heater / dryer will be described with reference to FIG. FIG. 6 is a block diagram showing the configuration of the bathroom heater / dryer according to the first embodiment of the present invention.

The bathroom heater / dryer 30 includes a second control unit 56 and a second operation unit 57.

The second control unit 56 controls the operation of at least one of the circulation motor 45, the ventilation motor 62, the crushing motor 37, the water supply valve 51, and the air passage changing means. Further, the second control unit 56 is electrically connected to the first control unit 13.

The second control unit 56 controls the supply of hot water from the water heater to the first heating means 40 and the second heating means 43. Further, the second control unit 56 controls the opening and closing of the water supply valve 51 based on a preset program to control the amount of water supplied to the water storage unit 49.

The second operation unit 57 is provided in, for example, in the dressing room, and instructs the second control unit 56 to operate at least one of the circulation fan 44, the bathroom ventilation fan 61, the air passage changing means, and the humidifying means 42.

Next, the configuration of the ventilation system according to the first embodiment of the present invention will be described with reference to FIG. 7. FIG. 7 is a schematic view of a house provided with a ventilation system according to a first embodiment of the present invention.

The ventilation system 100 according to the present embodiment includes a heat exchange type ventilation device 1 (corresponding to a ventilation device) and a bathroom heater / dryer 30 (corresponding to a humidifying blower).

The heat exchange type ventilator 1 communicates with the outside through the outside air inflow duct 83. The outside air inflow duct 83 is connected to the outside air suction port 2. The outdoor air flowing in from the outside air introduction port 93 passes through the outside air inflow duct 83, and flows into the inside of the heat exchange type ventilation device 1 from the outside air suction port 2. Further, the heat exchange type ventilation device 1 communicates with the outside through the exhaust duct 82. The exhaust duct 82 is connected to the indoor air exhaust port 3. The indoor air exhausted from the indoor air exhaust port 3 passes through the exhaust duct 82 and is exhausted to the outside from the first outdoor side air outlet 91. Further, the heat exchange type ventilator 1 communicates with another room via the air supply duct 84. The air supply duct 84 is connected to the outside air air supply port 4. The air blown out from the outside air supply port 4 passes through the air supply duct 84 and is blown from the indoor air outlet 90 to the living room.

The bathroom heater / dryer 30 communicates with the outside through the bathroom exhaust duct 81. The bathroom exhaust duct 81 is connected to the ventilation box 60 and communicates with the bathroom exhaust port 36. The air blown out from the bathroom exhaust port 36 passes through the bathroom exhaust duct 81 and is exhausted to the outside from the second outdoor side air outlet 92.

Further, the heat exchange type ventilator 1 and the bathroom heater / dryer 30 are connected via a connection duct 80. The connection duct 80 is connected to the communication port 19 of the heat exchange type ventilation device 1 and the bathroom outlet 35 of the bathroom heater / dryer 30. By connecting with the connection duct 80, the heat exchange type ventilation device 1 and the bathroom heater / dryer 30 are communicated with each other. As a result, the air blown from the bathroom heater / dryer 30 can be sent to each room using the air passage of the heat exchange type ventilator 1 without having to route a plurality of ducts from the bathroom heater / dryer 30 to each room. Can be delivered. That is, a ventilation system that manages the air environment of the entire house can be configured simply by connecting the heat exchange type ventilation device 1 to the bathroom heater / dryer 30 installed in advance. Even if the heat exchange type ventilation device 1 is installed in advance and the bathroom heater / dryer 30 is retrofitted to the heat exchange type ventilation device 1, the same effect can be obtained.

The second air passage changing means 39 is provided on the air passage connecting the heat exchange type ventilation device 1 and the bathroom heater / dryer 30. The second air passage changing means 39 adjusts the amount of air flowing from the bathroom heater / dryer 30 into the heat exchange type ventilator 1. The second air passage changing means 39 operates in response to an instruction from the second control unit 56.
When the second air passage changing means 39 is open, air flows from the bathroom heater / dryer 30 into the heat exchange type ventilator 1. Specifically, the air sucked from the bathroom air suction port 33 connects the connecting air passage 72 to the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, the second heating means 43, and the bathroom outlet 35. It passes in order and flows into the inside of the heat exchange type ventilation device 1 from the communication port 19.

When the second air passage changing means 39 is closed, the inflow of air from the bathroom heater / dryer 30 to the heat exchange type ventilator 1 is restricted. Specifically, the air sucked from the bathroom air suction port 33 passes through the circulation air passage 70 in the order of the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, and the second heating means 43, and the bathroom It is blown into the bathroom from the inner air outlet 34. Alternatively, the air sucked from the bathroom air suction port 33 passes through the bathroom exhaust air passage 71 in the order of the first heating means 40, the humidifying means 42, the gas-liquid separation device 55, and the second heating means 43, and the bathroom exhaust port It is blown out from 36 to the outside.

The second air passage changing means 39 may be provided not on the bathroom heater / dryer 30 side but on the heat exchange type ventilator 1 side.

Here, the flow of air supplied in the ventilation system 100 will be described with reference to FIG. FIG. 8 is a schematic view showing an air supply air passage of the ventilation system according to the first embodiment of the present invention.

When the second air passage changing means 39 is open, in addition to the air sucked from the outside air suction port 2 and passing through the heat exchange element 6, the air sucked from the bathroom air suction port 33 and passing through the connection duct 80 is the air supply air. It flows on the road 7.

When the bathroom heater / dryer 30 performs the humidification operation with the second air passage changing means 39 open, the air humidified by the bathroom heater / dryer 30 is supplied with air on the downstream side of the heat exchange element 6. It merges with the air flowing through the road 7. Specifically, the air sucked from the bathroom air suction port 33 is humidified by the humidifying means 42, and is blown from the bathroom outside air outlet 35 through the connection duct 80 to the air supply air passage 7.

Further, when the heating operation is performed by the bathroom heater / dryer 30 with the second air passage changing means 39 open, the air warmed by the bathroom heater / dryer 30 is located on the downstream side of the heat exchange element 6. It merges with the air flowing through the air supply air passage 7. Specifically, the air sucked from the bathroom air suction port 33 is warmed by the first heating means 40 or the second heating means 43, and is blown from the bathroom outside air outlet 35 through the connection duct 80 to the air supply air passage 7. Will be done.

When the air that has passed through the bathroom heater / dryer 30 flows into the air supply air passage 7, it is preferable that the air flows into the main body of the heat exchange type ventilator 1. As a result, the distance from the indoor air outlet 90 can be secured, so that the sound generated at the time of blowing air can be reduced.

Further, it may flow into the downstream side of the heat exchange element 6 and the upstream side of the air supply fan 9. As a result, it is possible to blow air into the living room more efficiently.

When the air that has passed through the bathroom heater / dryer 30 flows into the air supply air passage 7, it may be configured to join in the air supply duct 84. As a result, the humidified state can be supplied to the living room while being kept high.

Further, the air sucked from the bathroom air suction port 33 may flow into the heat exchange type ventilation device 1 without being humidified and heated. As a result, the humidity or temperature contained in the bathroom air can be used for the air supplied to the living room without using the crushing motor 37 or the heating means. As a result, power consumption can be reduced.

Further, control may be performed to determine the angle at which the second air passage changing means 39 is opened from the target humidification amount or the target temperature. As a result, the amount of air flowing into the air supply air passage 7 can be adjusted, and more comfortable air can be supplied to the living room.

Next, the flow of air exhausted to the outside in the ventilation system 100 will be described with reference to FIG. FIG. 9 is a schematic view showing an exhaust air passage of the ventilation system according to the first embodiment of the present invention.

In the heat exchange type ventilation device 1, the air sucked from the indoor air suction port 5 is exhausted to the outside through the exhaust air passage 8 by the exhaust air blowing unit 17 (exhaust fan 10). Specifically, it is sucked into the main body of the heat exchange type ventilation device 1 from the indoor air suction port 5, passes through the heat exchange element 6, and is exhausted to the outside from the indoor air exhaust port 3 through the exhaust duct 82. ..

In the bathroom heater / dryer 30, the air sucked from the bathroom air suction port 33 is exhausted to the outside from the bathroom exhaust port 36 by the bathroom ventilation fan 61. Specifically, the air is exhausted to the outside by passing through the main body case 32, the ventilation box 60, and the bathroom exhaust duct 81 in this order.

Next, a method of controlling the ventilation system according to the present embodiment will be described with reference to FIGS. 10 and 11. Hereinafter, the operation in which the air humidified by the bathroom heater / dryer 30 flows into the air supply air passage 7 and is supplied to the living room is referred to as a humidified heat exchange air operation. Further, the operation in which the air warmed by the bathroom heater / dryer 30 flows into the air supply air passage 7 and is supplied to the living room is referred to as the heating heat exchange air operation.

First, a method of controlling the humidified heat exchange air operation will be described with reference to FIG. FIG. 10 is a flowchart showing a control method of the ventilation system according to the first embodiment of the present invention.

When the humidified heat exchange air operation is instructed (S01), the second control unit 56 instructs the second air passage changing means 39 to be opened (S02). Then, the second control unit 56 instructs the supply of hot water to the first heating means 40 and the second heating means 43 (S03). After that, the second control unit 56 operates the circulation fan 44 (S04). Further, the second control unit 56 operates the crushing motor 37 (S04). Then, the second control unit 56 opens the water supply valve 51 (S05) and starts the humidification operation in a state where water is supplied to the water storage unit 49.

After that, when the humidification heat exchange air operation stop signal is input from the first operation unit 20 to the first control unit 13 (Yes in S06), or when the humidity exceeds the predetermined humidity by the indoor exhaust humidity sensor 16 or the like. When it is detected (Yes in S07), the humidification operation is stopped. Specifically, the second control unit 56 closes the water supply valve 51 (S08), stops the circulation fan 44, stops the crushing motor 37, and stops the supply of hot water to the heating means (S09). ). Then, the second control unit 56 closes the second air passage changing means 39 (S10).

When the humidification operation stop signal is not input (No in S06) and the indoor exhaust humidity sensor 16 or the like does not detect that the humidity exceeds the predetermined humidity (No in S07), the humidification heat exchange air operation is continued.

In the case of the humidified heat exchange air operation, the hot water may not be supplied to the first heating means 40 or the second heating means 43. As a result, overhumidification can be suppressed. In addition, power consumption can be reduced. Further, the supply of hot water to the first heating means 40 or the second heating means 43 may be controlled according to the target humidification amount.

Next, a method of controlling the heating heat exchange air operation will be described with reference to FIG. FIG. 11 is a flowchart showing a control method according to the first embodiment of the present invention.

When the heating heat exchange air operation is instructed (S11), the second control unit 56 instructs the second air passage changing means 39 to be opened (S12). Then, the second control unit 56 operates the circulation fan 44 (S13). Further, the second control unit 56 instructs the supply of hot water to the first heating means 40 and the second heating means 43 (S14). When a heating heat exchange air operation stop signal is input from the first operation unit 20 (Yes in S15), or when it is detected by the indoor exhaust temperature sensor 15 or the like that the temperature has exceeded a predetermined temperature (in S16). Yes), stop the heating operation. Specifically, the second control unit 56 stops the supply of hot water to the first heating means 40 and the second heating means 43, and stops the circulation fan 44 (S17). Then, the second control unit 56 closes the second air passage changing means 39 (S18).

When the heating operation stop signal is not input (No in S15) and the indoor exhaust temperature sensor 15 or the like does not detect that the temperature has exceeded the predetermined temperature (No in S16), the heating heat exchange air operation is continued.

It should be noted that the humidifying heat exchange air operation may be a combination of the humidifying heat exchange air operation and the heating heat exchange air operation.

Further, the heat exchange type ventilation device 1 may be configured to be linked with HEMS (Home Energy Management System) and linked with other devices. For example, it may be linked with a ceiling-embedded air purifier or the like.

In the present embodiment, the heat exchange type ventilation device 1 and the bathroom heater / dryer 30 each have a control unit, but the ventilation system 100 as a whole may have one control unit. Further, the second air passage changing means 39 may be separate from the bathroom heater / dryer 30. Further, the second air passage changing means 39 may be controlled by a control unit that controls the entire ventilation system 100 or a first control unit 13.

Although the ventilation system according to the present invention has been described above based on the embodiment, the present invention is not limited to the embodiment. As long as the gist of the present invention is not deviated, various modifications that can be conceived by those skilled in the art are applied to the present embodiment, and a form constructed by combining components in different embodiments is also included in the scope of the present invention. Is done.

The ventilation system according to the present invention is also effective for applications such as a duct-type heat exchange air system for the purpose of heat exchange between outside air and indoor air, and a duct-type air conditioner.

1 Heat exchange type ventilation device 2 Outside air suction port 3 Indoor air exhaust port 4 Outside air air supply port 5 Indoor air suction port 6 Heat exchange element 7 Supply air air passage 8 Exhaust air passage 9 Air supply fan 10 Exhaust fan 11 For air supply Motor 12 Exhaust motor 13 First control unit 14 Indoor air supply temperature sensor 15 Indoor exhaust temperature sensor 16 Indoor exhaust humidity sensor 17 Exhaust air blower 18 Air supply air blower 19 Communication port 20 First operation unit 30 Bathroom Heater / dryer 31 Front panel 32 Main body case 33 Bathroom air suction port 34 In-bathroom air outlet 35 Out-of-bathroom air outlet 36 Bathroom exhaust port 37 Crushing motor 38 First air passage changing means 39 Second air passage changing means 40 First Heating means 42 Humidifying means 43 Second heating means 44 Circulation fan 45 Circulation motor 46 Pumping pipe 47 Centrifugal crushing disk 48 Crushing wall 49 Water storage part 50 Output shaft 51 Water supply valve 52 Water supply part 53 Crushing frame 55 Air-liquid separator 56 2nd control unit 57 2nd operation unit 60 Ventilation box 61 Bathroom ventilation fan 62 Ventilation motor 70 Circulation air passage 71 Bathroom exhaust air passage 72 Connection air passage 80 Connection duct 81 Bathroom exhaust duct 82 Exhaust duct 83 Outside air inflow duct 84 Air supply duct 90 Indoor air outlet 91 1st outdoor air outlet 92 2nd outdoor air outlet 93 Outside air inlet 100 Ventilation system

Claims (6)

A ventilation device including an air supply air blower, an exhaust air blower, and a heat exchange element.
A humidifying air blower having a humidifying mode for humidifying air by a humidifying section is provided.
An air supply air passage in which air is blown from the outside to the inside by the air supply air supply unit, and
An exhaust air passage for blowing air from the room to the outside by the exhaust air blowing unit is provided.
The heat exchange element exchanges heat between the air passing through the air supply air passage and the air passing through the exhaust air passage.
A ventilation system characterized in that the air humidified by the humidifying portion flows into the air supply air passage on the downstream side of the heat exchange element. The humidifying air blower includes a pumping pipe, a rotating plate, and a water storage unit.
The pumping pipe sucks up the liquid stored in the water storage unit, and sucks up the liquid.
The ventilation system according to claim 1, wherein the rotating plate refines the liquid sucked up by the pumping pipe by rotation. The ventilation system according to claim 1 or 2, wherein an air passage changing means is provided on an air passage connecting the ventilation device and the humidifying air blowing device. The ventilation system according to any one of claims 1 to 3, wherein the humidifying blower has a heating means for heating air. The ventilation system according to claim 4, wherein the air heated by the heating means flows into the air supply air passage. The ventilation system according to claim 1, wherein the air humidified by the humidifying portion flows into the main body of the ventilation device.