JP2021092377A - Heat exchange type ventilation device with humidification function - Google Patents

Abstract

To provide a heat exchange type ventilation device with a humidification function capable of increasing humidification amount to a supply air flow that has undergone heat exchange by using the heat exchange type ventilation device.SOLUTION: A heat exchange type ventilation device 4 with a humidification function includes: a heat exchange type ventilation device 5 exchanging heat between an exhaust air flow 15 flowing in an inner exhaust air path for discharging air RA on an indoor side 2 to an outdoor side and a supply air flow 16 flowing in an inner supply air path for supplying air OA on the outdoor side to the indoor side 2; a humidifier 6 humidifying the supply air flow 16 that has undergone heat exchange; and a control section 8 controlling an operation of the humidifier 6. The control section performs control so as to perform humidification by using the humidifier 6 without adding the air RA on the indoor side 2 to the supply air flow 16 that has undergone heat exchange when an output capacity value specifying humidification amount of the humidifier 6 is a reference value or smaller and so as to perform humidification by using the humidifier 6 by adding the air RA on the indoor side 2 to the supply air flow 16 that has undergone heat exchange when the output capacity value exceeds the reference value.SELECTED DRAWING: Figure 2

Description

The present invention relates to a heat exchange type ventilation device with a humidifying function used in a living space or the like.

Conventionally, as a device capable of performing ventilation while suppressing a reduction in the effect of cooling or heating, a heat exchange type ventilation device that exchanges heat between a supply air flow and an exhaust flow during ventilation is known.

Since such a heat exchange type ventilator has a function of exchanging latent heat in addition to sensible heat, it is possible to obtain an indoor moisturizing effect, but by itself, the decrease in indoor relative humidity in winter when the outdoor absolute humidity is low can be obtained. It is difficult to prevent. Therefore, as a heat exchange type ventilator, a heat exchange type ventilator with a humidifying function has been developed in which a humidifying device is provided on the downstream side of the air supply air passage (for example, Patent Document 1). With this configuration, humidified air can be supplied indoors, and a decrease in indoor relative humidity in winter can be suppressed.

Japanese Unexamined Patent Publication No. 10-47736

However, in the conventional heat exchange type ventilator with a humidifying function, the air supply air exchanged in the heat exchange type ventilator is directly introduced into the humidifying device, so that the air volume is larger than that of the heat exchange type ventilator. The humidifying capacity (humidifying amount) could not be improved by increasing the air volume passing through the humidifying device.

Therefore, the present invention solves the above-mentioned conventional problems, and provides a heat exchange type ventilator with a humidifying function capable of increasing the amount of humidification to the air supply airflow after heat exchange by the heat exchange type ventilator. The purpose is.

Then, in order to achieve this object, the heat exchange type ventilation device with a humidifying function according to the present invention has an exhaust flow flowing through an exhaust air passage for exhausting indoor air to the outside and outdoor air to the inside. Controls the operation of a heat exchange type ventilator that exchanges heat between the air supply air flowing through the air supply air passage for supplying air, a humidifying device that humidifies the air supply air after heat exchange, and a humidifying device. It is equipped with a control unit. Then, when the output capacity value for specifying the humidification amount of the humidifier is equal to or less than the reference value, the control unit humidifies the air supply after heat exchange with the humidifier without adding indoor air, and outputs the output. When the capacity value exceeds the standard value, it is characterized in that indoor air is added to the air supply after heat exchange to control the humidification by a humidifier.

According to the heat exchange type ventilator with a humidifying function according to the present invention, there is provided a heat exchange type ventilator with a humidifying function capable of increasing the amount of humidification to the air supply after heat exchange by the heat exchange type ventilator. be able to.

FIG. 1 is a schematic view showing an example of installation of a heat exchange type ventilation device with a humidifying function according to a first embodiment of the present invention in a house. FIG. 2 is a schematic view showing the equipment configuration of the heat exchange type ventilator with a humidifying function. FIG. 3 is a block diagram showing a configuration of a control unit in the heat exchange type ventilator with a humidifying function. FIG. 4 is a flowchart showing a process performed by the processing unit of the control unit in the heat exchange type ventilator with a humidifying function. FIG. 5 is a diagram showing the relationship between the output capacity value and the rotational output value used for the processing performed by the processing unit of the control unit in the heat exchange type ventilator with a humidifying function. FIG. 6 is a schematic view showing the equipment configuration of the heat exchange type ventilator with a humidifying function according to the second embodiment of the present invention. FIG. 7 is a block diagram showing a configuration of a control unit in the heat exchange type ventilator with a humidifying function. FIG. 8 is a schematic view showing the equipment configuration of the heat exchange type ventilator with a humidifying function according to the third embodiment of the present invention. FIG. 9 is a block diagram showing a configuration of a control unit in the heat exchange type ventilator with a humidifying function.

The heat exchange type ventilator with a humidifying function according to the present invention circulates an exhaust flow that circulates an exhaust air passage for exhausting indoor air to the outside and an air supply air passage for supplying outdoor air indoors. It is provided with a heat exchange type ventilation device that exchanges heat with the air supply to be exchanged, a humidifying device that humidifies the air supply after heat exchange, and a control unit that controls the operation of the humidifying device. Then, when the output capacity value for specifying the humidification amount of the humidifier is equal to or less than the reference value, the control unit humidifies the air supply after heat exchange with the humidifier without adding indoor air, and outputs the output. When the capacity value exceeds the standard value, it is characterized in that indoor air is added to the air supply after heat exchange to control the humidification by a humidifier.

According to such a configuration, when the output capacity value for specifying the humidification amount of the humidifier exceeds the reference value, the air volume of the air flowing through the humidifier is increased by adding indoor air to the air supply after heat exchange. Can be made to. Therefore, even if the output of the humidifying device itself is the same, the amount of humidification to the air supply (the amount of water supplied indoors) can be increased, and the humidifying capacity of the heat exchange type ventilation device with a humidifying function is improved. be able to. That is, it is possible to provide a heat exchange type ventilator with a humidifying function capable of increasing the amount of humidification to the air supply airflow after heat exchange by the heat exchange type ventilator.

Further, the heat exchange type ventilation device with a humidifying function according to the present invention includes a blower device configured to be able to convey indoor air to the humidifying device. The control unit is configured to control the operation of the blower. When the output capacity value is equal to or less than the reference value, the blower is not operated, and when the output capacity value exceeds the reference value, the blower is used. May be configured to be controlled to operate.

According to such a configuration, by providing a blower as a means for adding indoor air to the air supply after heat exchange, even if the humidifier itself does not have the ability to convey air, the indoor air can be used as a humidifier. Can be distributed. That is, the humidifying capacity of the humidifying device in the heat exchange type ventilator with a humidifying function can be easily improved.

Further, in the heat exchange type ventilation device with a humidifying function according to the present invention, the control unit calculates the output capacity value using the humidity information regarding the humidity of the indoor air and the target humidity of the indoor air, and the calculated output capacity value. It may be configured to control the operation operation of the humidifier based on the above.

According to such a configuration, when the humidity of the indoor air does not approach the target humidity, the target humidity is achieved without depending on the performance such as the airtightness of the house, such as increasing the output capacity value by using the humidity information. The humidifier can be controlled in this way.

Further, in the heat exchange type ventilator with a humidifying function according to the present invention, the blower includes the first blower configured to be able to convey the air in the first room indoors to the humidifier and the air in the second room indoors. Includes a second blower configured to be able to transport the air to the humidifier. Then, the control unit selects one of the first blower and the second blower based on the temperature / humidity information of the air in the first room and the temperature / humidity information of the air in the second room, and the selected device. It may be configured to control the operation operation of the blower as the operation operation of the blower.

According to such a configuration, by switching the blower (first blower or second blower) that controls the operation operation, the humidifier is humidified as indoor air added to the air supply after heat exchange. By increasing the amount (the amount of water supplied indoors), air under more favorable temperature and humidity conditions can be selectively supplied. Therefore, the humidifying capacity of the heat exchange type ventilator with a humidifying function can be effectively improved.

Further, in the heat exchange type ventilator with a humidifying function according to the present invention, the blower has a first air passage through which air flows from the first indoor room and a second air passage through which air flows from the second indoor room. It is configured so that it can be switched between the air passage and the air passage. Then, the control unit selects either the first air passage or the second air passage based on the temperature / humidity information of the air in the first room and the temperature / humidity information of the air in the second room, and the selected wind. It may be configured to control the operating operation of the blower so as to convey the indoor air flowing through the road to the humidifier.

According to such a configuration, by switching the air passage (first air passage or second air passage) for carrying the indoor air to the humidifier, the humidifier is added to the air supply after heat exchange indoors. As air, air with more favorable temperature and humidity conditions can be selectively supplied by increasing the amount of humidification (the amount of water supplied indoors). Therefore, the humidifying capacity of the heat exchange type ventilator with a humidifying function can be effectively improved.

Further, in the heat exchange type ventilator with a humidifying function according to the present invention, the control unit selects and operates the first blower when the temperature of the air in the first room is higher than the temperature of the air in the second room. It is preferable to control the operation. By doing so, the humidifier is supplied with air having a higher temperature (air in the first room) in the indoor air as the indoor air added to the air supply after heat exchange. , The amount of water that can be contained as the air supply can be increased. Therefore, even if the output of the humidifier itself is the same, the amount of humidification to the air supply (the amount of water supplied indoors) can be increased, and the humidifying capacity of the heat exchange type ventilator with a humidifying function is effective. Can be improved.

Further, in the heat exchange type ventilator with a humidifying function according to the present invention, the control unit selects and operates the first blower when the humidity of the air in the first room is lower than the humidity of the air in the second room. It is preferable to control the operation. By doing so, the humidifier is supplied with air having a lower humidity (air in the first room) than the indoor air as the indoor air added to the air supply after heat exchange. , The amount of water that can be contained as the air supply can be increased. Therefore, even if the output of the humidifier itself is the same, the amount of humidification to the air supply (the amount of water supplied indoors) can be increased, and the humidifying capacity of the heat exchange type ventilator with a humidifying function is effective. Can be improved.

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

(Embodiment 1)
First, with reference to FIGS. 1 and 2, the equipment configuration of the heat exchange type ventilator 4 with a humidifying function according to the first embodiment of the present invention will be described. FIG. 1 is a schematic view showing an example of installation of a heat exchange type ventilation device 4 with a humidifying function according to a first embodiment of the present invention in a house 1. FIG. 2 is a schematic view showing the equipment configuration of the heat exchange type ventilator 4 with a humidifying function.

As shown in FIG. 1, the heat exchange type ventilator 4 with a humidifying function is installed between the floors of the house 1 or in the attic, and includes a heat exchange type ventilator 5, a humidifying device 6, and a blower 7. To. The heat exchange type ventilator 4 with a humidifying function ventilates the indoor 2 air (exhaust flow 15 described later) and the outdoor 3 air (supplied airflow 16 described later) while exchanging heat in the heat exchange type ventilator 5. , The air (circulating flow 17 described later) conveyed from the indoor 2 by the air supply 16 and the blower 7 is humidified in the humidifying device 6 as necessary and introduced into the indoor 2. That is, the heat exchange type ventilation device 4 with a humidifying function ventilates and transfers the heat of the exhaust flow 15 to the supply airflow 16 at the time of this ventilation to suppress the release of unnecessary heat. Further, the air supply airflow 16 is humidified to suppress a decrease in air humidity (indoor relative humidity) in the indoor area 2. In particular, in the heat exchange type ventilation device 4 with a humidifying function according to the first embodiment, when the output capacity value for specifying the humidification amount of the humidifying device 6 exceeds the reference value, the air supply air 16 after heat exchange is indoors. It is configured to add the air of 2 and humidify by the humidifying device 6.

Here, the exhaust flow 15 is an air flow that discharges the air in the indoor 2 to the outdoor 3. The exhaust flow 15 is first conveyed from the indoor 2 to the heat exchange type ventilation device 5 through the return air passage 9. The exhaust flow 15 that has exchanged heat with the air supply 16 in the heat exchange type ventilation device 5 is discharged from the heat exchange type ventilation device 5 to the outdoor 3 through the exhaust air passage 10. The return air passage 9 is arranged so as to connect each room of the house 1 with the heat exchange type ventilation device 5. The exhaust air passage 10 is arranged so as to connect the heat exchange type ventilation device 5 and the exhaust port provided on the outer wall surface of the house 1.

The air supply 16 is an air flow that introduces the air of the outdoor 3 into the indoor 2. The air supply airflow 16 is first conveyed from the outdoor 3 to the heat exchange type ventilator 5 through the outside air passage 11. The air supply air 16 that has exchanged heat with the exhaust flow 15 in the heat exchange type ventilation device 5 is conveyed from the heat exchange type ventilation device 5 to the humidifying device 6 through the relay air passage 12. The airflow 16 that has been humidified as needed in the humidifying device 6 is introduced from the humidifying device 6 into the indoor 2 through the air supply air passage 13. The outside air passage 11 is arranged so as to connect the air supply port provided on the outer wall surface of the house 1 and the heat exchange type ventilation device 5. The relay air passage 12 is arranged so as to connect the heat exchange type ventilation device 5 and the humidifying device 6. The air supply air passage 13 is arranged so as to connect the humidifying device 6 and each room of the house 1.

The circulating flow 17 is an air flow that humidifies the air in the indoor 2 and introduces it into the indoor 2 again. The circulating flow 17 is first conveyed from the indoor 2 to the humidifying device 6 through the blower 7 and the circulating air passage 14. The circulating flow 17 humidified in the humidifying device 6 merges with the air supply airflow 16 and then is introduced from the humidifying device 6 into the indoor 2 through the air supply air passage 13. The circulation air passage 14 is arranged so as to connect the blower device 7 and the humidifying device 6. The circulating flow 17 may be humidified by the humidifying device 6 after merging with the air supply air 16.

Next, a specific configuration of the heat exchange type ventilator 4 with a humidifying function will be described.

As shown in FIG. 2, the heat exchange type ventilator 4 with a humidifying function includes a heat exchange type ventilator 5, a humidifying device 6, and a blower 7. The humidifying device 6 and the blowing device 7 are configured such that the operation operation is controlled by the control unit 8 (see FIG. 3) described later.

The heat exchange type ventilator 5 is a device that ventilates while exchanging heat between the air RA (exhaust flow 15) in the indoor 2 and the air OA (air supply 16) in the outdoor 3. Specifically, as shown in FIG. 2, the heat exchange type ventilation device 5 includes a return air port 5a, an exhaust port 5b, an outside air port 5c, an air supply port 5d, a heat exchange element 5e, a humidity sensor 5f, and an exhaust fan 5g. It also has an air supply fan 5h.

The return air port 5a is an intake port for taking in the air RA (exhaust flow 15) of the indoor 2 from the return air air passage 9 (see FIG. 1) into the heat exchange type ventilation device 5. The exhaust port 5b is an exhaust port that discharges the exhaust flow 15 as an exhaust EA from the heat exchange type ventilator 5 to the exhaust air passage 10 (see FIG. 1). The outside air port 5c is an intake port that takes in the air OA (air supply airflow 16) of the outdoor 3 from the outside air air passage 11 (see FIG. 1) into the heat exchange type ventilation device 5. The air supply port 5d is a discharge port that discharges the air supply airflow 16 from the heat exchange type ventilation device 5 to the relay air passage 12.

The heat exchange element 5e is a member for performing heat exchange (sensible heat and latent heat) between the exhaust flow 15 and the supply airflow 16. The heat exchange element 5e is a total heat exchange element formed of heat transfer paper (heat transfer plate) based on cellulose fibers. However, the material is not limited to this. As the heat transfer plate constituting the heat exchange element 5e, for example, a moisture permeable resin film based on polyurethane or polyethylene terephthalate, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber can be used. .. Further, as the heat transfer plate constituting the heat exchange element 5e, a thin sheet having heat transfer properties and having a property of not allowing gas to permeate can be used. In this case, the heat exchange element 5e becomes a sensible heat exchange element.

The humidity sensor 5f is a sensor that detects the humidity of the exhaust flow 15 taken in from the return air port 5a, and is used as an input signal of the control unit 8 described later. The exhaust fan 5g is a blower for taking in the exhaust flow 15 from the return air port 5a and discharging it from the exhaust port 5b. The air supply fan 5h is a blower for taking in the air flow 16 from the outside air port 5c and discharging it from the air supply port 5d.

Further, inside the heat exchange type ventilation device 5, an internal exhaust air passage that communicates the return air port 5a and the exhaust port 5b and an internal air supply air passage that communicates the outside air port 5c and the air supply port 5d are configured. ing.

When the heat exchange type ventilation device 5 performs heat exchange ventilation, the exhaust fan 5g and the air supply fan 5h are operated, and the exhaust flow 15 flowing through the internal exhaust air passage in the heat exchange element 5e and the internal supply Heat exchange is performed with the air supply air 16 flowing through the air passage. As a result, the heat exchange type ventilator 5 transfers the heat of the exhaust flow 15 released to the outdoor 3 to the air supply 16 that takes in the indoor 2 when ventilating, suppresses the release of unnecessary heat, and indoors. Recover heat to 2. As a result, in winter, when ventilating, the temperature drop of the indoor 2 can be suppressed by the air having a low temperature of the outdoor 3. On the other hand, in the summer, when ventilating, the temperature rise of the indoor 2 can be suppressed by the high temperature air of the outdoor 3.

Subsequently, the humidifying device 6 is a device that humidifies the air supply 16 after heat exchange from the heat exchange type ventilator 5 and the air RA (circulating flow 17) of the indoor 2 from the blower 7 as needed. .. Specifically, as shown in FIG. 2, the humidifying device 6 includes an air supply inlet 6a, a circulation inflow port 6b, an airflow outlet 6c, and a humidifier 6d.

The airflow inlet 6a is an intake that takes in the airflow 16 from the relay air passage 12 into the humidifying device 6. The circulation inlet 6b is an intake that takes in the circulation flow 17 from the circulation air passage 14 into the humidifying device 6. The airflow outlet 6c is a humidified airflow 16 (airflow 16 from the heat exchange type ventilator 5 or a combination of the airflow 16 from the heat exchange type ventilator 5 and the circulating flow 17 from the blower 7). ) Is used as the supply air SA and is discharged to the supply air passage 13 (see FIG. 1).

The humidifier 6d is a unit for humidifying the air supply airflow 16 and the circulating flow 17 taken into the inside. The humidifier 6d has a humidifying motor 6e and a humidifying nozzle 6f. The humidifier 6d uses a humidifying motor 6e to rotate the humidifying nozzle 6f, sucks up the stored water by centrifugal force, scatters, collides, and crushes it in the surroundings (centrifugal direction), and impregnates the passing air with water. It has a centrifugal crushing type structure. Then, the humidifier 6d changes the rotation speed (hereinafter, rotational output value) of the humidifying motor 6e according to the output signal from the control unit 8 described later, and adjusts the humidifying capacity (humidifying amount).

The liquid added to the air by the humidifier 6d may be a liquid other than water, for example, a liquid such as hypochlorous acid water having bactericidal or deodorant properties. In this case, the hypochlorous acid water is included in the air flow 16 and supplied to the indoor 2, so that the indoor 2 can be sterilized or deodorized.

Subsequently, as shown in FIGS. 1 and 2, the blower 7 is installed between the floors of the indoor 2 or behind the ceiling, takes in the air RA (circulation flow 17) of the indoor 2 from the ceiling surface, and conveys it to the humidifier 6. It is a device that can be used. The blower device 7 is controlled to turn on / off the operation operation according to an output signal (hereinafter, blower output information) from the control unit 8 described later.

Next, the control during the humidification operation operation by the heat exchange type ventilation device 4 with a humidification function according to the first embodiment will be described with reference to FIGS. 3 to 5. FIG. 3 is a block diagram showing the configuration of the control unit 8 in the heat exchange type ventilation device 4 with a humidifying function. FIG. 4 is a flowchart showing a process performed by the processing unit 8b of the control unit 8 in the heat exchange type ventilation device 4 with a humidifying function. FIG. 5 is a diagram showing the relationship between the output capacity value and the rotational output value used in the processing performed by the processing unit 8b of the control unit 8 in the heat exchange type ventilation device 4 with a humidifying function. In FIG. 5, the control range of the rotation output value (rotation speed) in the humidifying device 6 (humidifying motor 6e) is set to 2000 rpm to 4000 rpm, and the range of the output capacity value is set to 2000 to 5000 to show the correlation.

The control unit 8 controls the operation of the humidifying device 6 and the blower device 7. Specifically, as shown in FIG. 3, the control unit 8 has an input unit 8a, a processing unit 8b, an output unit 8c, a storage unit 8d, and a timing unit 8e. The input unit 8a is output from the humidification operation output from the operation panel 18 installed in the indoor 2 and the set humidity (target humidity) of the air RA in the indoor 2 and the humidity sensor 5f of the heat exchange type ventilator 5. It receives information on the humidity (indoor humidity) of the air RA of the indoor 2 and outputs it to the processing unit 8b.

The processing unit 8b performs predetermined processing at regular time intervals (for example, 5 minutes) based on the time information output from the time measuring unit 8e. Specifically, the indoor humidity is set as the target humidity by using the past humidity information output from the storage unit 8d, the past output capacity value, and the calculation parameters, and the current humidity information output from the input unit 8a. The output capacity value is calculated to bring it closer to, and based on the calculated output capacity value, the rotation output value for the humidifier 6 (the number of rotations of the humidifying motor 6e in the humidifier 6d) and the ventilation output information for the blower 7 (operation). Information on on / off of operation) is specified and output to the output unit 8c. Here, the output capacity value is a value that is an index of the humidification capacity (humidification amount) of the entire heat exchange type ventilation device 4 with a humidification function. The output capacity value can also be said to be a value for specifying the amount of humidification required for the humidifying device 6 to bring the air RA of the indoor 2 closer to the target humidity.

The storage unit 8d stores the past humidity information, the past output capacity value, and the calculation parameters, and also stores the current indoor humidity information, the current output capacity value, and the current blast output information output from the processing unit 8b. Accept and memorize. In addition, information on the correlation between the output capacity value and the rotational output value shown in FIG. 5 is also stored. Each of the stored information is output from the storage unit 8d to the processing unit 8b in response to a request from the processing unit 8b.

The output unit 8c outputs the rotational output value received from the processing unit 8b to the humidifying device 6 (humidifying motor 6e of the humidifier 6d). Further, the output unit 8c outputs the blower output information received from the processing unit 8b to the blower device 7. Then, the humidifying device 6 executes the humidifying operation operation according to the rotation output value output from the output unit 8c. Further, the blower device 7 executes on / off of the blower operation operation based on the blower output information output from the output unit 8c.

Next, the processing flow performed by the processing unit 8b of the control unit 8 in the heat exchange type ventilation device 4 with a humidifying function will be described.

As shown in FIG. 4, the processing unit 8b of the control unit 8 is mainly composed of three steps (steps S01 to S03), and starts processing in response to a control signal from the operation panel 18.

Step S01 is a step for performing processing at the processing interval stored in the storage unit 8d. For example, when the processing interval is 5 minutes, the processing unit 8b repeats the time determination until 5 minutes elapse while receiving the time information output from the time counting unit 8e, and after 5 minutes elapses, the processing unit 8b performs processing in step S02. Proceed. When determining the time, the control signal of the operation panel 18 is received in the subsequent stage, and when the end signal is received, the process ends.

Step S02 is a step of updating the output capacity value. Here, the processing unit 8b updates the output capacity value based on each information output from the input unit 8a and the storage unit 8d, and proceeds to the process in step S03. As the calculation formula used at the time of updating, for example, the speed type PID (Proportional Integral Differential) control formula shown in the following formula (1) can be used.

R = R + Kp * [(ΔX0-ΔX1)
+ (1 / Ti) * ΔX0 + Td * {(ΔX0-ΔX1)-(ΔX1-ΔX2)}]
... Equation (1)
However, R is an output capacity value, Kp, Ti, and Td are PID parameters, and ΔX0, ΔX1, and ΔX2 are values based on the "target humidity-indoor humidity" one time before and two times before, respectively. is there.

Step S03 is a step of specifying the rotation output value and the blast output information according to the updated output capacity value. Here, the processing unit 8b determines the magnitude relationship between the reference value stored in the storage unit 8d and the updated output capacity value. Then, when the output capacity value is equal to or less than the reference value (NO), the processing unit 8b receives the rotation output value (first rotation output value shown in FIG. 5) and the ventilation output information corresponding to the output capacity value equal to or less than the reference value. The information (off information) for turning off the operation of the blower device 7 is specified. On the other hand, when the output capacity value exceeds the reference value (YES), the control unit 8 uses the rotation output value (second rotation output value shown in FIG. 5) and the ventilation output information corresponding to the output capacity value exceeding the reference value. The information (on information) for turning on the operation of the blower 7 is specified. Here, the reference value is a value defined corresponding to the maximum rotation speed that can be set in the humidifying motor 6e of the humidifying device 6.

As shown in FIG. 5, the first rotation output value is a value obtained by using the output capacity value as it is as the rotation output value. On the other hand, the second rotation output value is a value obtained by subtracting the adjustment value from the output capacity value to obtain the rotation output value. The second rotation output value is calculated by subtracting the adjustment value (strictly speaking, the rotation speed corresponding to the adjustment value) from the first rotation output value outside the control range in the region exceeding the reference value for the output capacity value. It can be said to be a value.

Here, the adjustment values are from the state in which only the air supply 16 from the heat exchange type ventilator 5 is humidified (the state in which the blower 7 is off) to the air supply 16 from the heat exchange type ventilator 5 and the air blower. The discontinuity of the humidifying capacity (rapid increase in the amount of humidification by the humidifying device 6) that occurs when shifting to the state of humidifying the airflow in which the circulating flow 17 from 7 has merged (the state in which the blower device 7 is on) This is a value set to reduce.

The processing of the processing unit 8b in step S03 will be described with reference to a specific example. As described above, in the present embodiment, the control range of the rotation output value (rotation speed) in the humidifying device 6 (humidifying motor 6e) is 2000 rpm to 4000 rpm, so that the reference value is 2000 to 5000 of the output capacity value. It is set to 4000 out of the range. Then, the adjustment value is set to 1000 (rotation speed 1000 rpm).

In the case of setting as described above, the humidifying device 6 turns off the blower output information when the output capacity value calculated by the processing unit 8b is equal to or less than the reference value (the output capacity value is in the range of 2000 or more and 4000 or less). In this state, the humidification process is executed with the rotation output value (rotation speed) of the humidification motor 6e in the range of 2000 rpm or more and 4000 rpm or less. On the other hand, when the output capacity value calculated by the processing unit 8b exceeds the reference value (the output capacity value is in the range of more than 4000 and 5000 or less), the humidifying device 6 rotates the humidifying motor 6e with the blower output information turned on. Humidification treatment is executed in the range where the output value (rotation speed) is more than 3000 rpm and 4000 rpm or less.

As described above, according to the heat exchange type ventilation device 4 with a humidifying function according to the first embodiment, the following effects can be enjoyed.

(1) In the heat exchange type ventilation device 4 with a humidifying function, when the output capacity value for specifying the humidifying amount of the humidifying device 6 is equal to or less than the reference value, the air RA of the indoor 2 is applied to the air supply air 16 after the heat exchange. Humidification is performed by the humidifying device 6 without adding, and when the output capacity value exceeds the reference value, the air RA of the indoor 2 is added to the air supply air 16 after heat exchange to humidify by the humidifying device 6. did. By doing so, when the output capacity value for specifying the humidification amount of the humidifier 6 exceeds the reference value, the humidifier 6 is distributed by adding the air RA of the indoor 2 to the air supply air 16 after heat exchange. It is possible to increase the air volume of the air. Therefore, even if the output of the humidifying device 6 itself is the same, the amount of humidification to the air supply 16 (the amount of water supplied to the indoor 2) can be increased, and the humidification of the heat exchange type ventilation device 4 with a humidifying function can be increased. You can improve your ability. That is, the heat exchange type ventilation device 4 having a humidifying function can increase the amount of humidification to the airflow 16 after the heat exchange by the heat exchange type ventilation device 5.

(2) The heat exchange type ventilator 4 with a humidifying function is provided with a blower 7 configured to be able to convey the air RA of the indoor 2 to the humidifier 6, and when the output capacity value is equal to or less than the reference value, the blower 7 is provided. Is not operated, and when the output capacity value exceeds the reference value, the blower 7 is operated. By doing so, even if the humidifying device 6 itself does not have the ability to convey air, the air RA of the indoor 2 can be circulated to the humidifying device 6. That is, the humidifying capacity of the humidifying device 6 in the heat exchange type ventilator 4 with a humidifying function can be easily improved.

(3) In the heat exchange type ventilator 4 with a humidifying function, the output capacity value is calculated using the humidity information regarding the humidity of the air RA in the indoor 2 and the target humidity of the air RA in the indoor 2 and is based on the calculated output capacity value. It was configured to control the operation of the humidifying device 6. By doing so, when the humidity of the air RA in the indoor 2 does not approach the target humidity, the output capacity value is increased by using the humidity information, and the target is independent of the performance such as the airtightness of the house 1. The humidifier 6 can be controlled to achieve humidity.

(4) According to the heat exchange type ventilator 4 with a humidifying function, when the humidifying amount for the air supply 16 is insufficient only by operating with only the air volume of the heat exchange type ventilator 5, the air blower 7 to the indoor 2 By increasing the air volume of the air flowing through the humidifying device 6 by transporting the air RA (circulating flow 17) of the above, the humidifying capacity of the heat exchange type ventilation device 4 with a humidifying function can be easily increased.

(5) In the heat exchange type ventilation device 4 with a humidifying function, since the air RA (circulation flow 17) of the indoor 2 is added to the air supply air 16 after the heat exchange by the heat exchange type ventilation device 5, the heat exchange The flow balance of the airflow flowing through the heat exchange type ventilation device 5 (flow rate of the exhaust flow 15 <flow rate of the supply airflow 16) is adjusted as compared with the case where the air RA of the indoor 2 is added to the previous supply airflow 16. Humidification can be performed by the humidifying device 6 without any problem.

(Embodiment 2)
The heat exchange type ventilation device 4a with a humidifying function according to the second embodiment of the present invention replaces one blower device 7 with two blower devices (first blower device 7a, second blower device 7a, second blower device) installed in each room. It differs from the first embodiment in that it is configured using 7b). Other than this, the configuration of the heat exchange type ventilator 4a with a humidifying function is the same as that of the heat exchange type ventilator 4 with a humidifying function according to the first embodiment. Hereinafter, the contents already explained in the first embodiment will be omitted again as appropriate, and the points different from the first embodiment will be mainly described.

The heat exchange type ventilation device 4a with a humidifying function according to the second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a schematic view showing the equipment configuration of the heat exchange type ventilation device 4a with a humidifying function according to the second embodiment of the present invention.

As shown in FIG. 6, the heat exchange type ventilator 4a with a humidifying function includes a heat exchange type ventilator 5, a humidifying device 6, a first blower 7a, a second blower 7b, and an air passage switching damper 19. Is configured to have. The first blower 7a and the air passage switching damper 19 are communicated with each other by the first circulation air passage 14a, and the second blower 7b and the air passage switching damper 19 are connected by the second circulation air passage 14b. The air passage switching damper 19 and the humidifying device 6 (circulation inflow port 6b) are communicated and connected by a third circulation air passage 14c. The humidifying device 6, the first blower device 7a, the second blower device 7b, and the air passage switching damper 19 are configured such that their respective operation operations are controlled by the control unit 80 (see FIG. 7).

The first blower device 7a is a device configured to be able to convey the air RA (first circulation flow 17a) of the first room 2a in the indoor 2 to the humidifying device 6. Specifically, the first blower 7a is installed between the floors of the first room 2a or behind the ceiling, takes in the air RA of the first room 2a from the ceiling surface, and takes in the air RA of the first room 2a, the first circulation air passage 14a, and the air passage switching damper. 19 and a device for transporting to the humidifying device 6 via the third circulation air passage 14c. Then, the first blower device 7a is controlled to turn on / off the operation operation according to the blower output information from the control unit 80. Here, the control method during the operation of the first blower 7a is the same as the control method during the operation of the blower 7 of the first embodiment, and thus the description thereof will be omitted.

Further, in the first room 2a in which the first blower 7a is installed, a first temperature / humidity sensor 20a for detecting the temperature / humidity of the air RA in the first room 2a is provided. The first temperature / humidity sensor 20a is a sensor that detects the temperature and humidity of the air RA in the first room 2a. The first temperature / humidity sensor 20a outputs information (temperature / humidity information) indicating the detected temperature and humidity to the control unit 80.

On the other hand, the second blower device 7b is a device configured to be able to convey the air RA (second circulation flow 17b) of the second room 2b in the indoor 2 to the humidifying device 6. Specifically, the second blower 7b is installed between the floors of the second room 2b or behind the ceiling, takes in the air RA of the second room 2b from the ceiling surface, and takes in the air RA of the second room 2b, the second circulation air passage 14b, and the air passage switching damper. 19 and a device for transporting to the humidifying device 6 via the third circulation air passage 14c. Then, the second blower device 7b is controlled to turn on / off the operation operation according to the blower output information from the control unit 80. Here, the control method during the operation of the second blower 7b is the same as the control method during the operation of the blower 7 of the first embodiment, and thus the description thereof will be omitted.

Further, in the second room 2b where the second blower 7b is installed, a second temperature / humidity sensor 20b for detecting the temperature / humidity of the air RA in the second room 2b is provided. The second temperature / humidity sensor 20b is a sensor that detects the temperature and humidity of the air RA in the second room 2b. The second temperature / humidity sensor 20b outputs information (temperature / humidity information) indicating the detected temperature and humidity to the control unit 80.

The air passage switching damper 19 is conveyed by the first state in which the air RA (first circulating flow 17a) from the first room 2a conveyed by the first blower 7a is circulated to the humidifier 6 and by the second blower 7b. This is a damper for switching between the second state in which the air RA (second circulating flow 17b) from the second room 2b is circulated to the humidifying device 6. Then, the air passage switching damper 19 is controlled to switch between the first state and the second state according to the air blow output information from the control unit 80.

The first circulating flow 17a is a flow of air that humidifies the air RA of the first room 2a conveyed by the first blower 7a and introduces it into each room of the indoor 2 again. When the air passage switching damper 19 is in the first state, the first circulating flow 17a is first passed through the first blowing device 7a, the first circulating air passage 14a, the air passage switching damper 19, and the third circulating air passage 14c. It is transported from the room 2a to the humidifying device 6. Then, the first circulating flow 17a humidified in the humidifying device 6 merges with the air supply airflow 16 and then is introduced from the humidifying device 6 into each room of the indoor 2 through the air supply air passage 13. The first circulating flow 17a may be humidified by the humidifying device 6 after merging with the air supply air 16.

On the other hand, the second circulating flow 17b is a flow of air that humidifies the air RA of the second room 2b conveyed by the second blower 7b and introduces it into each room of the indoor 2 again. When the air passage switching damper 19 is in the second state, the second circulating flow 17b passes through the second blower 7b, the second circulating air passage 14b, the air passage switching damper 19, and the third circulating air passage 14c. It is transported from the room 2b to the humidifying device 6. Then, the second circulating flow 17b humidified in the humidifying device 6 merges with the air supply airflow 16 and then is introduced from the humidifying device 6 into each room of the indoor 2 through the air supply air passage 13. The second circulating flow 17b may be humidified by the humidifying device 6 after merging with the air supply air 16.

Next, the control during the humidification operation operation by the heat exchange type ventilation device 4a with a humidification function according to the second embodiment will be described with reference to FIG. 7. FIG. 7 is a block diagram showing the configuration of the control unit 80 in the heat exchange type ventilation device 4a with a humidifying function.

The control unit 80 controls the operation of the humidifying device 6, the first blower device 7a, the second blower device 7b, and the air passage switching damper 19. As shown in FIG. 7, the control unit 80 includes an input unit 80a, a processing unit 80b, an output unit 80c, a storage unit 80d, and a timekeeping unit 80e. Since the roles of the respective parts in the control unit 80 correspond to the roles of the respective parts in the control unit 8 described above, the differences between the two will be described here.

The input unit 80a includes the temperature / humidity information of the air RA of the first room 2a output from the first temperature / humidity sensor 20a and the temperature / humidity information of the air RA of the second room 2a output from the second temperature / humidity sensor 20b. Is received and output to the processing unit 80b.

In step S03 shown in FIG. 4, the processing unit 80b outputs the temperature / humidity information of each room (the temperature / humidity information of the air RA of the first room 2a and the temperature / humidity of the air RA of the second room 2a) output from the input unit 80a. Based on the information), as the air RA of the indoor 2 to be added to the air supply air 16 after heat exchange, the air RA under more preferable temperature and humidity conditions is specified by increasing the humidification amount (the amount of water supplied to the indoor 2). .. Then, the processing unit 80b receives the blower output information (information regarding on / off of the operation operation) for the first blower device 7a and the blower output for the second blower device 7b so that the specified air RA is conveyed to the humidifying device 6. Information (information regarding on / off of driving operation) and switching information of the air passage switching damper 19 are specified, and each of the specified information is output to the output unit 80c.

The output unit 80c outputs each blower output information received from the processing unit 80b to each of the first blower device 7a and the second blower device 7b. Then, the first blower device 7a and the second blower device 7b execute the on / off of the blower operation operation based on the blower output information output from the output unit 8c. Further, the output unit 80c outputs the switching information received from the processing unit 80b to the air passage switching damper 19. Then, the air passage switching damper 19 has a first state (a state in which the first blower 7a and the humidifying device 6 communicate with each other) and a second state (a second state) based on the switching information output from the output unit 8c. (A state in which the blower 7b and the humidifier 6 communicate with each other) is switched.

As a result, in the heat exchange type ventilation device 4a with a humidifying function, when the output capacity value for specifying the humidification amount of the humidifying device 6 exceeds the reference value, the first air blower 7a is used for the air supply 16 after the heat exchange. The air RA (first circulating flow 17a) from the first chamber 2a to be transported is added and supplied as an air supply SA, and the air supply air 16 after heat exchange is conveyed by the second blower 7b. It is possible to switch between a state in which air RA (second circulation flow 17b) from the second room 2b is added and supplied as air supply SA.

A more detailed control example in the processing unit 80b is as follows.

<Control example A>
Of the temperature and humidity information of each room output from the input unit 80a, the processing unit is based on the temperature information of each room (the temperature information of the air RA of the first room 2a and the temperature information of the air RA of the second room 2a). A control example A performed by 80b will be described.

In control example A, the processing unit 80b compares the temperature of the air RA of the first room 2a with the temperature of the air RA of the second room 2b, and the temperature of the air RA of the first room 2a is the temperature of the air RA of the second room 2b. When the temperature is higher than the temperature of RA, the air RA of the first room 2a is specified as the air RA of the indoor 2 added to the air supply airflow 16 after heat exchange. That is, it is specified that the air RA of the first room 2a is used as the air RA under more favorable temperature and humidity conditions for increasing the humidification amount. Then, the processing unit 80b receives the blower output information (information regarding the on of the operation operation) for the first blower device 7a and the second blower device 7b so that the air RA of the specified first room 2a is conveyed to the humidifier device 6. The blower output information (information regarding the off of the operation operation) and the switching information (first state) of the air passage switching damper 19 are specified, and each of the specified information is output to the output unit 80c.

As a result, as the air RA of the indoor 2 added to the air supply 16 after heat exchange with respect to the humidifier 6, air having a higher temperature than the air RA of the indoor 2 (air RA of the first room 2a) is generated. Since it is supplied, the amount of water that can be contained as the air supply SA can be increased.

<Control example B>
Of the temperature and humidity information of each room output from the input unit 80a, the processing unit is based on the humidity information of each room (humidity information of air RA of first room 2a, humidity information of air RA of second room 2a). A control example B performed by 80b will be described.

In control example B, the processing unit 80b compares the humidity of the air RA of the first room 2a with the humidity of the air RA of the second room 2b, and the humidity of the air RA of the first room 2a is the humidity of the air RA of the second room 2b. When the humidity is lower than the humidity of RA, the air RA of the first room 2a is specified as the air RA of the indoor 2 added to the air supply airflow 16 after heat exchange. That is, it is specified that the air RA of the first room 2a is used as the air RA under more favorable temperature and humidity conditions for increasing the humidification amount. Then, the processing unit 80b receives the blower output information (information regarding the on of the operation operation) for the first blower device 7a and the second blower device 7b so that the air RA of the specified first room 2a is conveyed to the humidifier device 6. The blower output information (information regarding the off of the operation operation) and the switching information (first state) of the air passage switching damper 19 are specified, and each of the specified information is output to the output unit 80c.

As a result, as the air RA of the indoor 2 added to the air supply 16 after heat exchange with respect to the humidifier 6, air having a lower humidity than the air RA of the indoor 2 (air RA of the first room 2a) is generated. Since it is supplied, the amount of water that can be contained as the air supply SA can be increased.

As described above, according to the heat exchange type ventilation device 4a with a humidifying function according to the second embodiment, the following effects can be enjoyed.

(1) In the heat exchange type ventilator 4a with a humidifying function, by switching the blower device (first blower device 7a or second blower device 7b) that controls the operation operation, the humidifier device 6 is subjected to heat exchange after heat exchange. As the air RA of the indoor 2 added to the air supply air 16, air under more favorable temperature and humidity conditions can be selected and supplied by increasing the humidification amount (the amount of water supplied to the indoor 2). Therefore, the humidifying capacity of the heat exchange type ventilator 4a with a humidifying function can be effectively improved.

(2) In the heat exchange type ventilator 4a with a humidifying function, when the temperature of the air RA in the first room 2a is higher than the temperature of the air RA in the second room 2b, the first blower 7a is selected for operation. (Control example A). As a result, as the air RA of the indoor 2 added to the air supply 16 after heat exchange with respect to the humidifying device 6, air having a higher temperature than the air RA of the indoor 2 (air RA of the first room 2a) is generated. Since it is supplied, the amount of water that can be contained as the supply airflow 16 can be increased. Therefore, even if the output of the humidifying device 6 itself is the same, the amount of humidification to the air supply 16 (the amount of water supplied to the indoor 2) can be increased, and the heat exchange type ventilation device 4a with a humidifying function can be humidified. The ability can be effectively improved.

(3) In the heat exchange type ventilator 4a with a humidifying function, when the humidity of the air RA in the first room 2a is lower than the humidity of the air RA in the second room 2b, the first blower 7a is selected for operation. (Control example B). As a result, as the air RA of the indoor 2 added to the air supply 16 after heat exchange with respect to the humidifier 6, air having a lower humidity than the air RA of the indoor 2 (air RA of the first room 2a) is generated. Since it is supplied, the amount of water that can be contained as the supply airflow 16 can be increased. Therefore, even if the output of the humidifying device 6 itself is the same, the amount of humidification to the air supply 16 (the amount of water supplied indoors) can be increased, and the humidifying capacity of the heat exchange type ventilation device 4a with a humidifying function can be increased. Can be effectively improved.

(Embodiment 3)
The heat exchange type ventilation device 4b with a humidifying function according to the third embodiment of the present invention has two opening / closing dampers (first opening / closing damper 21a, second opening / closing damper) installed for each room with respect to one blower 7c. 21b) is different from the first and second embodiments in that it is configured to communicate with each other. Other than this, the configuration of the heat exchange type ventilator 4b with a humidifying function is the same as that of the heat exchange type ventilator 4 with a humidifying function according to the first embodiment. Hereinafter, the contents already explained in the first and second embodiments will be omitted again as appropriate, and the differences from the first and second embodiments will be mainly described.

The heat exchange type ventilation device 4b with a humidifying function according to the third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a schematic view showing the equipment configuration of the heat exchange type ventilation device 4b with a humidifying function according to the third embodiment of the present invention.

As shown in FIG. 8, the heat exchange type ventilator 4b with a humidifying function includes a heat exchange type ventilator 5, a humidifying device 6, a blower 7c, a first opening / closing damper 21a, and a second opening / closing damper 21b. It is composed of. Then, the blower 7c and the first opening / closing damper 21a are communicated and connected by the first circulation air passage 14a, and the blower 7c and the second opening / closing damper 21b are communicated and connected by the second circulation air passage 14b. The blower 7c and the humidifier 6 (circulation inlet 6b) are communicated and connected by a third circulation air passage 14c. The humidifying device 6, the blower device 7c, the first opening / closing damper 21a, and the second opening / closing damper 21b are configured such that their respective operation operations are controlled by the control unit 81 (see FIG. 9). The first circulation air passage 14a corresponds to the "first air passage" of the claim, and the second circulation air passage 14b corresponds to the "second air passage" of the claim.

The blower 7c is installed between the floors of the indoor 2 or behind the ceiling, and the air RA (first circulating flow 17a) of the first room 2a in the indoor 2 or the air RA (second circulating flow) of the second room 2b in the indoor 2 17b) is a device configured to be able to be conveyed to the humidifying device 6. Specifically, when the first circulating flow 17a is conveyed to the humidifying device 6, the blower 7c has a first opening / closing damper 21a and a first circulating air passage 14a from the ceiling surface of the first room 2a. The air RA of one room 2a is taken in and conveyed to the humidifying device 6 via the third circulation air passage 14c. On the other hand, when the second circulation flow 17b is conveyed to the humidifying device 6, the blower 7c has the second room 2b from the ceiling surface of the second room 2b via the second opening / closing damper 21b and the second circulation air passage 14b. Air RA is taken in and conveyed to the humidifying device 6 via the third circulation air passage 14c. Then, the blower device 7c is controlled to turn on / off the operation operation according to the blower output information from the control unit 81. Here, the control method during the operation of the blower 7c is the same as the control method during the operation of the blower 7 of the first embodiment, and thus the description thereof will be omitted.

The first opening / closing damper 21a is installed on the ceiling surface of the first room 2a. The first opening / closing damper 21a communicates between the first room 2a and the blower 7c, and the air RA (first circulation flow 17a) from the first room 2a flows in the open state, and the first room 2a and the blower are blown. It is a damper for switching between a closed state in which the air RA (first circulating flow 17a) from the first room 2a does not flow by shielding the device 7c. Then, the first opening / closing damper 21a is controlled to switch between the open state and the closed state according to the ventilation output information from the control unit 81.

On the other hand, the second opening / closing damper 21b is installed on the ceiling surface of the second room 2b. The second opening / closing damper 21b communicates between the second room 2b and the blower 7c, and the air RA (second circulation flow 17b) from the second room 2b flows in the open state, and the second room 2b and the blower are blown. It is a damper for switching between the closed state in which the air RA (second circulating flow 17b) from the second room 2b does not flow by shielding the device 7c. Then, the second opening / closing damper 21b is controlled to switch between the open state and the closed state according to the ventilation output information from the control unit 81.

Similar to the second embodiment, the first room 2a in which the first opening / closing damper 21a is installed is provided with the first temperature / humidity sensor 20a for detecting the temperature / humidity of the air RA in the first room 2a. Then, the first temperature / humidity sensor 20a outputs information (temperature / humidity information) indicating the detected temperature and humidity to the control unit 81.

On the other hand, in the second room 2b where the second opening / closing damper 21b is installed, a second temperature / humidity sensor 20b for detecting the temperature / humidity of the air RA in the second room 2b is provided as in the second embodiment. There is. Then, the second temperature / humidity sensor 20b outputs information (temperature / humidity information) indicating the detected temperature and humidity to the control unit 81.

The first circulating flow 17a is a flow of air that humidifies the air RA of the first room 2a conveyed by the blower 7c and introduces it into each room of the indoor 2 again. When the first opening / closing damper 21a is in the open state, the first circulation flow 17a is transmitted from the first room 2a through the first opening / closing damper 21a, the first circulation air passage 14a, the blower 7c, and the third circulation air passage 14c. It is transported to the humidifying device 6. Then, the first circulating flow 17a humidified in the humidifying device 6 merges with the air supply airflow 16 and then is introduced from the humidifying device 6 into each room of the indoor 2 through the air supply air passage 13. The first circulating flow 17a may be humidified by the humidifying device 6 after merging with the air supply air 16.

On the other hand, the second circulating flow 17b is a flow of air that humidifies the air RA of the second room 2b conveyed by the blower 7c and introduces it into each room of the indoor 2 again. When the second opening / closing damper 21b is in the open state, the second circulation flow 17b is transmitted from the second room 2b through the second opening / closing damper 21b, the second circulation air passage 14b, the blower 7c, and the third circulation air passage 14c. It is transported to the humidifying device 6. Then, the second circulating flow 17b humidified in the humidifying device 6 merges with the air supply airflow 16 and then is introduced from the humidifying device 6 into each room of the indoor 2 through the air supply air passage 13. The second circulating flow 17b may be humidified by the humidifying device 6 after merging with the air supply air 16.

Next, the control during the humidification operation operation by the heat exchange type ventilation device 4b with a humidification function according to the third embodiment will be described with reference to FIG. FIG. 9 is a block diagram showing the configuration of the control unit 81 in the heat exchange type ventilation device 4b with a humidifying function.

The control unit 81 controls the operation of the humidifying device 6, the blower 7c, the first opening / closing damper 21a, and the second opening / closing damper 21b. As shown in FIG. 9, the control unit 81 includes an input unit 81a, a processing unit 81b, an output unit 81c, a storage unit 81d, and a timekeeping unit 81e. Since the roles of the respective parts in the control unit 81 correspond to the roles of the respective parts in the control unit 80 described above, the differences between the two will be described here.

The input unit 81a includes the temperature / humidity information of the air RA of the first room 2a output from the first temperature / humidity sensor 20a and the temperature / humidity information of the air RA of the second room 2a output from the second temperature / humidity sensor 20b. Is received and output to the processing unit 81b.

Similar to the processing unit 80b of the control unit 80 in the second embodiment, the processing unit 81b has temperature / humidity information of each room output from the input unit 81a (temperature / humidity information of air RA in the first room 2a, second room 2a). The temperature and humidity conditions of the indoor 2 to be added to the air supply air after heat exchange 16 based on the temperature and humidity information of the air RA of the above, which is more preferable to increase the humidification amount (the amount of water supplied to the indoor 2). Identify the air RA of. Then, the processing unit 81b provides blown output information (information regarding on / off of operation operation) to the blower device 7c, opening / closing information of the first opening / closing damper 21a, and opening / closing information of the first opening / closing damper 21a so that the specified air RA is conveyed to the humidifying device 6. The opening / closing information of the second opening / closing damper 21b is specified, and each of the specified information is output to the output unit 81c.

The output unit 81c outputs the blower output information received from the processing unit 81b to the blower device 7c. Then, the blower device 7c executes on / off of the blower operation operation based on the blower output information output from the output unit 8c. Further, the output unit 81c outputs the opening / closing information received from the processing unit 81b to the first opening / closing damper 21a and the second opening / closing damper 21b, respectively. Then, the first opening / closing damper 21a and the second opening / closing damper 21b execute opening / closing of each damper based on the opening / closing information output from the output unit 81c. Specifically, the air RA (first circulation flow 17a) of the first room 2a is conveyed to the humidifying device 6 (first opening / closing damper 21a: open state / second opening / closing damper 21b: closed state) or second. Open and close each damper so that the air RA (second circulation flow 17b) in the room 2b is conveyed to the humidifying device 6 (first open / close damper 21a: closed state / second open / close damper 21b: open state). Execute. In such opening / closing switching, the first circulation air passage 14a through which the air RA (second circulation flow 17b) from the first room 2a circulates and the air RA (second circulation flow 17b) from the second room 2b circulate. It corresponds to selecting one of the second circulating air passages 14b to switch to the selected air passage.

As a result, in the heat exchange type ventilator 4b with a humidifying function, when the output capacity value for specifying the humidification amount of the humidifying device 6 exceeds the reference value, the air supply air 16 after heat exchange is sent from the first room 2a. Air RA (first circulation flow 17a) is added and supplied as supply air SA, and air RA (second circulation flow 17b) from the second room 2b is added to the supply airflow 16 after heat exchange. It is possible to switch between the state of being supplied as the air supply SA and the state of being supplied.

The processing unit 81b performs the same control as the control examples (control example A, control example B) shown in the second embodiment.

As described above, according to the heat exchange type ventilation device 4b with a humidifying function according to the third embodiment, the following effects can be enjoyed.

(1) In the heat exchange type ventilation device 4a with a humidifying function, the air passage (the first) for transporting the air RA of the indoor 2 to the humidifying device 6 by controlling the open / closed state of the first opening / closing damper 21a and the second opening / closing damper 21b. The amount of humidification (moisture supplied to the indoor 2) is used as the air RA of the indoor 2 to be added to the air supply air 16 after heat exchange by switching the one circulation air passage 14a or the second circulation air passage 14b). The air RA under more favorable temperature and humidity conditions can be selectively supplied by increasing the amount). Therefore, the humidifying capacity of the heat exchange type ventilator 4b with a humidifying function can be effectively improved.

(2) In the heat exchange type ventilation device 4b with a humidifying function, the effect (2) in the second embodiment is performed by performing the same control as the control examples (control example A and control example B) shown in the second embodiment. And the same effect as the effect (3) can be enjoyed.

The present invention has been described above based on the embodiments. It will be appreciated by those skilled in the art that these embodiments are exemplary and that various variations of each of these components or combinations of processing processes are possible and that such modifications are also within the scope of the present invention. By the way.

In the heat exchange type ventilation device 4 with a humidifying function according to the first embodiment, when the circulation flow 17 is conveyed to the humidifying device 6 by the blowing device 7, the on / off of the blowing operation of the blowing device 7 is controlled. I went, but it's not limited to this. For example, in addition to controlling the blowing operation of the blowing device 7 on / off, the amount of blowing air of the circulating flow 17 may be controlled when the blowing operation is on. By doing so, it is possible to improve the controllability of the amount of humidification with respect to the airflow 16 that supplies air to the indoor 2.

Further, in the humidifying device 6 constituting the heat exchange type ventilators 4, 4a and 4b with a humidifying function according to the first to third embodiments, the humidifier 6d has a centrifugal crushing type configuration, but the present invention is not limited to this. .. For example, as a humidifier 6d, an ultrasonic type configuration in which water particles are scattered by ultrasonic waves, a heating type configuration in which water vapor is generated by heating, vaporization in which water is vaporized by passing air through a filter coated with water or the like. It may be a structure of an expression or a combination of these. When these are adopted, the amplitude of ultrasonic waves, the amount of heating, and the amount of water dripping onto the filter may be used as parameter values corresponding to the output capacity values.

Further, in the heat exchange type ventilator 4a with a humidifying function, as a control example A, the control unit 80 is first when the temperature of the air RA in the first room 2a is higher than the temperature of the air RA in the second room 2b. The blower 7a is selected to control the operation operation, but the present invention is not limited to this. For example, the control unit 80 may select the first blower device 7a to control the operation operation when the temperature of the air RA in the first room 2a is lower than the temperature of the air RA in the second room 2b. Good. In this case, since the air RA of the second room 2b, which has a relatively high temperature, moves to the first room 2a through the indoor door or the like, the temperature of the air Ra of the first room 2a rises, and the temperature of the air Ra of the first room 2a rises. The relative humidity of the air Ra can be reduced. Therefore, it is possible to suppress the occurrence of dew condensation caused by the increase in relative humidity in the first room 2a.

Further, in the heat exchange type ventilator 4a with a humidifying function, as a control example B, the control unit 80 is first when the humidity of the air RA in the first room 2a is lower than the humidity of the air RA in the second room 2b. The blower 7a is selected to control the operation operation, but the present invention is not limited to this. For example, when the humidity of the air RA in the first room 2a is higher than the humidity of the air RA in the second room 2b, the control unit 80 may select the first blower device 7a to control the operation operation. Good. In this case, since the air RA of the second room 2b, which has a relatively low humidity, moves to the first room 2a through an indoor door or the like, the relative humidity of the air Ra of the first room 2a can be reduced. Therefore, the occurrence of dew condensation can be suppressed in the first room 2a where the humidity is relatively high.

Further, in the heat exchange type ventilator 4a with a humidifying function, the air RA (first circulating flow 17a) from the first chamber 2a is added to the air supply air 16 after the heat exchange and supplied as the air supply SA. , To switch between a state in which air RA (second circulation flow 17b) from the second chamber 2b conveyed by the second blower 7b is added to the supply airflow 16 after heat exchange and supplied as air supply SA. However, it is not limited to this. For example, when the control unit 80 adds the air RA (first circulation flow 17a) from the first room 2a, the air volume from the first room 2b is smaller than that of the first circulation flow 17a, and the air RA (second circulation) from the second room 2b. The flow 17b) may be added. In this case, by increasing the circulation amount of air RA in the entire indoor 2 room, the humidity of the room with relatively low humidity can be increased and the humidity of the room with relatively high humidity can be lowered. A comfortable indoor space can be realized.

The heat exchange type ventilator with a humidifying function according to the present invention is useful as a heat exchange type ventilator capable of exchanging heat between indoor air and outdoor air as having a humidifying function.

1 House 2 Indoor 3 Outdoor 4 Heat exchange type ventilation device with humidification function 4a Heat exchange type ventilation device with humidification function 4b Heat exchange type ventilation device with humidification function 5 Heat exchange type ventilation device 5a Return air port 5b Exhaust port 5c Outside air port 5d Air supply port 5e Heat exchange element 5f Humidifier sensor 5g Exhaust fan 5h Air supply fan 6 Humidifier 6a Air supply inlet 6b Circulation inlet 6c Air supply outlet 6d Humidifier 6e Humidifier motor 6f Humidifier nozzle 7 Blower 7a First air blower 7b 2nd blower 7c blower 8 control 8a input 8b processing 8c output 8d storage 8e timing part 9 return air passage 10 exhaust air passage 11 outside air passage 12 relay air passage 13 supply air passage 14 circulation air passage 14a First circulation air passage 14b Second circulation air passage 14c Third circulation air passage 15 Exhaust flow 16 Air supply air flow 17 Circulation flow 17a First circulation flow 17b Second circulation flow 18 Operation panel 19 Air passage switching damper 20a First temperature and humidity sensor 20b Second temperature / humidity sensor 21a First open / close damper 21b Second open / close damper 80 Control unit 80a Input unit 80b Processing unit 80c Output unit 80d Storage unit 80e Clocking unit 81 Control unit 81a Input unit 81b Processing unit 81c Output unit 81d Storage unit 81e Humidifier

Claims (7)

Heat exchange type ventilation that exchanges heat between the exhaust flow that circulates in the exhaust air passage for exhausting indoor air to the outside and the air supply that circulates in the air supply air passage for supplying outdoor air indoors. Equipment and
A humidifying device that humidifies the air supply after heat exchange,
A control unit that controls the operation of the humidifier, and
With
When the output capacity value for specifying the humidification amount of the humidifier is equal to or less than the reference value, the control unit humidifies the humidifier without adding indoor air to the air supply after heat exchange. When the output capacity value exceeds the reference value, the humidifying function is controlled to add indoor air to the air supply air after heat exchange to humidify the humidifying device. With heat exchange type ventilation system. A blower configured to be able to convey the indoor air to the humidifier is provided.
The control unit is configured to control the operation of the blower, and when the output capacity value is equal to or less than the reference value, the blower is not operated and the output capacity value exceeds the reference value. In this case, the heat exchange type ventilation device with a humidifying function according to claim 1, wherein the blower is controlled to operate. The control unit calculates the output capacity value using humidity information regarding the humidity of the indoor air and the target humidity of the indoor air, and controls the operation operation of the humidifying device based on the calculated output capacity value. The heat exchange type ventilation device with a humidifying function according to claim 1 or 2. The blower includes a first blower configured to be able to convey the air in the indoor first room to the humidifier, and a first blower configured to be able to convey the air in the indoor second room to the humidifier. Including two blowers
The control unit selects either the first blower device or the second blower device based on the temperature / humidity information of the air in the first room and the temperature / humidity information of the air in the second room. The heat exchange type ventilation device with a humidifying function according to claim 2, wherein the operating operation of the selected device is controlled as the operating operation of the blower. The blower is configured to be able to switch between a first air passage through which air flows from the first indoor room and a second air passage through which air flows from the second indoor room.
The control unit selects either the first air passage or the second air passage based on the temperature / humidity information of the air in the first room and the temperature / humidity information of the air in the second room. The heat exchange type ventilation device with a humidifying function according to claim 2, wherein the operating operation of the blower device is controlled so as to convey the indoor air flowing through the selected air passage to the humidifying device. 4. The control unit is characterized in that when the temperature of the air in the first room is higher than the temperature of the air in the second room, the first blower is selected to control the operation operation. Alternatively, the heat exchange type ventilator with a humidifying function according to 5. 4. The control unit is characterized in that when the humidity of the air in the first room is lower than the humidity of the air in the second room, the first blower is selected to control the operation operation. Alternatively, the heat exchange type ventilator with a humidifying function according to 5.

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