JP2018128186A - Air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning system which can form a more comfortable indoor humidity environment by an air cleaner.SOLUTION: An air conditioning system includes: an air-conditioning heat exchanger 1 which adjusts temperature in a housing H by discharging and absorbing heat by circulating water as a heat exchanging medium; a heat pump outdoor unit 2 as a heat source device which can heat and cool the circulating water as the heat exchanging medium; an air cleaner 4 taking in the air in a room R of the housing H, brings it into contact with cleaned water, and discharges the cleaned air outside the room R; a temperature humidity sensor 61 detecting temperature and humidity of the air inside the room R of the housing H; a cleaned water heat exchanger 50 capable of heating and cooling the cleaned water by heat exchange with the circulating water as the heat exchanging medium; and a control unit 6 as a control part controlling temperature of the cleaned water by the cleaned water heat exchanger 50 on the basis of the detection by the temperature humidity sensor 61.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioning system.

  2. Description of the Related Art Conventionally, an air conditioning system including an air purifier that takes in air that circulates in a room and cleans the air by bringing it into contact with purified water and returns the purified air to the room is known (for example, see Patent Document 1). .

Japanese Patent No. 5430284

  However, since the purified water is brought into contact with the room air in the air purifier, the room air is dehumidified or humidified based on the relationship between the room humidity and the temperature of the purified water, and the room humidity is deteriorated from a comfortable humidity. There was a fear. For example, if the temperature of the purified water is higher than the outdoor temperature of the indoor absolute humidity in the summer when the air conditioning is necessary and the humidity is high, the air will be humidified during the purification of the air. There was a risk that it could not be kept.

  The present invention has been made paying attention to the above-described problems, and an object thereof is to provide an air conditioning system capable of forming a comfortable indoor humidity environment with an air purifier.

In order to achieve the above object, the air conditioning system of the present invention includes:
A heat exchanger for air conditioning that adjusts the temperature in the building by radiating and absorbing heat with a heat exchange medium;
A heat source device capable of heating and cooling the heat exchange medium;
An air purifier for taking in the air in the building and bringing it into contact with purified water and discharging the purified air into the building;
A temperature and humidity sensor for detecting the temperature and humidity of the air in the building;
A purified water heat exchanging section capable of heating and cooling the purified water by heat exchange with the heat exchange medium;
A control unit for controlling the temperature of the purified water by the purified water heat exchange unit based on the detection of the temperature and humidity sensor;
It was set as the air conditioning system characterized by providing.

The control unit performs a dehumidifying operation process in which the temperature of the heat exchange medium supplied to the purified water heat exchange unit is controlled to be lower than a temperature at which the absolute humidity of the air in the building becomes a saturated water vapor pressure. It is preferable to carry out.
Further, when the humidity detected by the temperature / humidity sensor is equal to or lower than a preset target humidity during the execution of the dehumidifying operation process, the control unit is configured to supply the heat exchange medium supplied to the purified water heat exchange unit. It is preferable to execute an appropriate humidity operation process in which the temperature is controlled to a temperature at which the absolute humidity of the air in the building becomes a saturated water vapor pressure.
Moreover, the said control part controls the temperature of the said heat exchange medium supplied to the said purified water heat exchange part to the temperature higher than the temperature from which the absolute humidity of the air in the said building becomes a saturated water vapor pressure. Is preferably performed.
The air conditioner heat exchanger is provided below the floor of the building so that the temperature of the room inside the building can be adjusted via the floor and the air under the floor by radiant heat, and the air purifier removes the air in the room from the air It is good also as an air-conditioning system provided under the floor of the building so that the air taken in from the intake and purified can be discharged from the air outlet into the room.

  In the air conditioning system of the present invention, the control unit performs humidification that is not necessary in the summer or dehumidification that is not necessary in the winter in the air purifier based on the temperature and humidity of the air in the building detected by the temperature and humidity sensor. It is possible to control the temperature of the purified water so that there is not. As a result, a comfortable indoor humidity environment can be formed by the air purifier.

Further, in the case where the control unit executes a dehumidifying operation process in which the temperature of the heat exchange medium is controlled to be lower than the temperature at which the absolute humidity of the air in the building becomes the saturated water vapor pressure, the dehumidification of the air in the building is surely performed. Is possible. In addition, when the dehumidifying operation process is executed, when the humidity is equal to or lower than the target humidity, the appropriate humidity operation process is executed to control the temperature of the heat exchange medium to a temperature at which the absolute humidity of the air in the building becomes the saturated water vapor pressure. Excessive dehumidification during dehumidifying operation can be suppressed.
In addition, the control unit executes a humidifying operation process in which the temperature of the heat exchange medium is controlled to be higher than the temperature at which the absolute humidity of the air in the building becomes the saturated water vapor pressure. Then, it is possible to reliably humidify the air in the building.
If the heat exchanger for air conditioning and the air purifier are provided under the floor of the building, it is easy to suck and exhaust the heat exchange medium of the air conditioning heat exchanger to the purified water heat exchange section of the air purifier. The structure can be simplified and the workability is excellent.

It is a whole system figure showing typically the whole air-conditioning system composition of Embodiment 1 of the present invention. It is a schematic block diagram which shows typically the structure of the air cleaner of the air conditioning system of Embodiment 1. FIG. FIG. 3 is a block diagram showing a configuration of a control system in the air conditioning system of the first embodiment. 3 is a flowchart showing a flow of processing of operation control of the air purifier in the air conditioning system of the first embodiment. FIG. 3 is an explanatory diagram of a state in which the air purifier is operated in an “air purification / deodorization operation mode” in the air conditioning system of the first embodiment. It is explanatory drawing of the state which act | operated the air purifier in "the weak air_conditioning dehumidification operation mode" in the air conditioning system of Embodiment 1. FIG. It is explanatory drawing of the state which act | operated the air purifier in the "humidification operation mode" in the air conditioning system of Embodiment 1. 6 is a time chart showing a temperature change during an experiment in which the air purifier is operated in the “weak cooling and dehumidifying operation mode” in the air conditioning system of the first embodiment. 6 is a time chart showing a change in relative humidity during an experiment in which the air purifier is operated in the “weak cooling and dehumidifying operation mode” in the air conditioning system according to Embodiment 1. 6 is a time chart showing a change in dehumidification amount during an experiment in which the air purifier is operated in the “weak cooling and dehumidifying operation mode” in the air conditioning system of the first embodiment. 6 is a time chart showing a temperature change of a comparative example in which the air purifier is operated in the “weak cooling and dehumidifying operation mode” at a purified water temperature different from that of the first embodiment. 6 is a time chart showing a change in relative humidity of a comparative example in which an air purifier is operated in a “weak cooling and dehumidifying operation mode” at a purified water temperature different from that of the first embodiment. 6 is a time chart showing a dehumidification amount change of a comparative example in which the air purifier is operated in the “weak cooling and dehumidifying operation mode” at a purified water temperature different from that of the first embodiment. It is a flowchart which shows the flow of a process of the operation control of the air purifier of other embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
First, the overall configuration of the air conditioning system of Embodiment 1 will be described with reference to FIG. FIG. 1 is an explanatory diagram showing an example of an air conditioning system AS installed in a house (building) H.

  The air conditioning system AS includes an air conditioner heat exchanger 1, a heat pump outdoor unit (heat source device) 2, a header box 3, and an air purifier 4.

  A plurality of air-conditioning heat exchangers 1 are installed under the floor UF of the house H. In the heat exchanger 1 for air conditioning, circulating water as a heat exchange medium is circulated from the heat pump outdoor unit 2 through a circulation pipe 11, and the air in the floor F and the underfloor UF is radiated by heat radiation and heat absorption by the circulating water. Heat or cool. Thus, the temperature of the room R in the house H is adjusted.

  The heat pump outdoor unit 2 is a device that uses heat generation and heat absorption generated with the compression and expansion of refrigerants such as chlorofluorocarbon gas and alternative chlorofluorocarbon gas, and has the same functions as those commonly used as outdoor units for air conditioners. It is an apparatus having. The heat pump outdoor unit 2 heats and cools the circulating water circulated between the air conditioner heat exchangers 1 by heat generation and heat absorption of the refrigerant. The supply of circulating water to each air conditioning heat exchanger 1 is controlled by switching a switching valve (not shown) in the header box 3 and is selectively supplied and supplied to each air conditioning heat exchanger 1. It is possible to stop.

  The heat source device that heats and cools the circulating water is not limited to the heat pump outdoor unit 2 described above, but other than a heat pump type such as an absorption chiller / heater or a heating / cooling device using a Peltier element. It can also be used. Further, the heat exchange medium is not limited to circulating water as long as it is a fluid.

Next, the air purifier 4 will be described with reference to FIG.
FIG. 2 is a schematic configuration diagram schematically showing the configuration of the air purifier 4, and the air purifier 4 includes a casing 41 installed in the underfloor UF. The gas-liquid contact chamber 41 a formed inside the housing 41 is connected to the intake pipe 42 and the exhaust pipe 43.

  The intake pipe 42 has one or a plurality of air intake ports 42a (see FIG. 1) opened in the room R of the house H, and further, the air intake port 42a to the gas-liquid contact chamber 41a in the middle thereof. A fan 42f that blows air is provided. Further, the exhaust pipe 43 has one or a plurality of air discharge ports 43a (see FIG. 1) opened into the room R. Thereby, when the fan 42f is driven, air can be circulated between the room R and the gas-liquid contact chamber 41a.

  Further, the air purifier 4 is configured to inject purified water from above the gas-liquid contact chamber 41a to purify the air in the room R to be circulated, and a circulation pipe 44, a pump 45, an injection nozzle 46, and a purification element 47. , 47.

As shown in the figure, the circulation pipe 44 is connected by connecting the lower part and the upper part of the gas-liquid contact chamber 41a, and includes a pump 45 in the middle. An injection nozzle 46 is attached to the tip of the circulation pipe 44 at the upper part of the gas-liquid contact chamber 41a.
With the above configuration, when the pump 45 is driven, the purified water collected in the lower portion of the gas-liquid contact chamber 41a is sucked and sprayed in the form of a mist from the jet nozzle 46 at the upper portion of the gas-liquid contact chamber 41a into the gas-liquid contact chamber 41a. In addition, the purified water can be circulated. Further, a water supply pipe 48 is connected to the circulation pipe 44 so that purified water can be added at any time. The purified water is not particularly limited as long as it is clean water, and tap water, well water, distilled water, pure water, electrolytic water, and the like can be used.

The purification element 47 is arranged in the gas-liquid contact chamber 41a so as to oppose the direction in which the purified water is ejected from the ejection nozzle 46, and has a large number of pores through which air and purified water can pass. The area is being expanded.
A drainage drain 49 is connected to the lower part of the gas-liquid contact chamber 41a. The drainage drain 49 enables the water accumulated in the gas-liquid contact chamber 41a to be discharged to the outside when the purified water becomes excessive or during maintenance.

  Therefore, in the air purifier 4, when the fan 42f and the pump 45 are driven, the purified water injected from the injection nozzle 46 to the contaminated air COA in the room R sucked from the intake pipe 42 in the gas-liquid contact chamber 41a. Dust and odor are removed by contact. The air CLA thus purified is returned from the exhaust pipe 43 to the room R.

  Further, in the first embodiment, the temperature of the purified water ejected from the ejection nozzle 46 can be adjusted. As a configuration for adjusting the temperature, a purified water heat exchanger 50 is provided in the middle of the circulation pipe 44. Although the purified water heat exchanger 50 is shown separately from the air purifier 4 in the figure, the purified water heat exchanger 50 may be installed in the air purifier 4.

  This purified water heat exchanger 50 has a heat exchanging portion 51 that can come into contact with purified water, and the heat exchanging portion 51 is branched from the circulation pipe 11 and is connected to the heat pump outdoor unit 2 via the header box 3. The purification side piping 22 to which the circulating water is supplied from is connected (see FIG. 1). Therefore, the heat exchanging portion 51 is configured to be able to heat and cool the purified water by exchanging heat between the circulating water and the purified water. Thereby, the temperature of purified water can be adjusted with the temperature of circulating water.

  The temperature of the circulating water supplied from the heat pump outdoor unit 2 to the circulation pipe 11 and the purification side pipe 22 and the switching of the water distribution in the header box 3 are controlled by a control unit 6 (see FIG. 3) provided in the header box 3. Is done.

  As shown in FIG. 3, a temperature / humidity sensor 61, a main remote controller 62, sub-remote controllers 63 and 63, a heat pump outdoor unit 2, a header box 3, and an air purifier 4 are connected to the control unit 6. As shown in FIG. 1, the temperature / humidity sensor 61 and the main remote controller 62 are arranged in a common space such as a living room in the room R, and the sub-remote controller 63 is arranged in a private room in the room R.

The control unit 6 controls the operation of the air purifier 4 based on the settings of the remote controllers 62 and 63 and the detection value of the temperature / humidity sensor 61. The control will be described with reference to the flowchart of FIG. .
In the main remote controller 62 and / or the sub remote controller 63, at least the “air purification / deodorization operation mode”, “weak cooling / dehumidification operation mode”, and “humidification operation mode” can be selected as the operation mode of the air purifier 4. ing.

  Therefore, the control unit 6 first determines whether the “air purification / deodorization operation mode”, the “weak cooling / dehumidification operation mode”, or the “humidification operation mode” is selected as the operation mode (step S101).

The “air purification / deodorization operation mode” is for purifying and deodorizing the air in the room R by the air purifier 4 without performing dehumidification and humidification, and is mainly selected in an intermediate period or the like.
When the “air purification / deodorization operation mode” is selected, the purified water heat exchanger 50 is not driven and the air cleaner 4 is driven (step S102). In this case, since the circulating water is not supplied from the heat pump outdoor unit 2 to the heat exchanging unit 51, the heat pump outdoor unit 2 is not driven or stops supplying the circulating water to the purification side pipe 22. .

That is, in the interim period, the air-conditioning heat exchanger 1 is mainly non-driven, the heat pump outdoor unit 2 is not driven, and the air-conditioning heat exchanger 1 and purified water from the header box 3 as shown in FIG. The supply of circulating water to the heat exchanger 50 is shut off. In addition, the circulation piping 11 and the purification | cleaning side piping 22 shown with the dotted line in FIG. 5 show the non-supply state of circulating water.
Therefore, in the air purifier 4, the fan 42 f is driven to circulate the air in the room R through the gas-liquid contact chamber 41 a, and the pump 45 is driven to inject purified water from the injection nozzle 46, so that dust in the air Remove dust, smell, etc.

The “weak cooling and dehumidifying operation mode” is for dehumidifying the air while cooling the air passing through the air purifier 4, and is mainly selected during the rainy season, summer, and early autumn.
When the “weak cooling / dehumidifying operation mode” is selected, the absolute humidity is obtained from the temperature and humidity detected by the temperature / humidity sensor 61 (step S103). Further, the dew point temperature with respect to the absolute humidity (the temperature at which the water vapor pressure of the absolute humidity becomes the saturated water vapor pressure) is obtained, and the temperature of the circulating water supplied to the heat exchange unit 51 is set to a temperature lower than the dew point temperature (step S104). . As processing for setting the temperature of the circulating water to a temperature lower than the dew point temperature, the temperature of the circulating water may be set according to the calculated dew point temperature, or the temperature of the circulating water is set in advance. It is good also as made comparatively low temperature (for example, temperature of about several to 10 degreeC).

  FIG. 6 shows an operation example of the “weak cooling and dehumidifying operation mode”, in which the circulating water cooled by the heat pump outdoor unit 2 is exchanged with purified water in the air purifier 4 from the header box 3 via the purification side pipe 22. It supplies to the container 50 (illustration omitted in FIG. 6). In the case of this illustrated example, the supply of circulating water to the air conditioner heat exchanger 1 is stopped in the circulation pipe 11 as indicated by the dotted line.

  As described above, when circulating water having a temperature lower than the dew point temperature of the humidity in the room R is supplied to the heat exchanging unit 51 of the air purifier 4, in the gas-liquid contact chamber 41 a, Since water vapor is converted into water droplets, the air is cooled and dehumidified (dehumidified).

  In addition, when the detected humidity RHr of the temperature / humidity sensor 61 reaches a preset target humidity RHt (S105 in FIG. 4) during the “weak cooling / dehumidifying operation mode”, the detected humidity RHr is again set to the target humidity. An appropriate humidity operation process is executed until the value becomes higher than RHt (S106 in FIG. 4).

  This appropriate humidity operation process is to stop dehumidification while continuing the weak cooling operation. In this case, the temperature of the circulating water supplied to the heat exchange unit 51 is determined by the temperature and relative humidity detected by the temperature / humidity sensor 61. Control to a temperature equivalent to the dew point temperature of the calculated absolute humidity. In addition, you may make it switch to "air purification / deodorizing operation mode" instead of a suitable humidity driving | running process.

The “humidifying operation mode” is for humidifying the air passing through the air purifier 4 and is selected mainly from late autumn to winter to early spring.
When the “humidifying operation mode” is selected, the absolute humidity is obtained from the temperature and humidity detected by the temperature / humidity sensor 61 (S107). Furthermore, the dew point temperature with respect to absolute humidity is calculated | required, and the temperature of the circulating water supplied to the heat exchange part 51 is set to temperature higher than a dew point temperature (step S108). In this case, the temperature of the circulating water may be a preset relatively high temperature (for example, a temperature of about 20 ° C. to 40 ° C.).

  FIG. 7 shows an operation example of the “humidification operation mode”, in which the heat pump outdoor unit 2 performs the heating operation, and the circulating water used for the heating is supplied via the header box 3 to the air conditioner heat exchanger 1 and It supplies to the purified water heat exchanger 50 (not shown in FIG. 7) of the air purifier 4.

  As described above, when the circulating water having a temperature higher than the dew point temperature of the absolute humidity of the air in the room R is supplied to the purified water heat exchanger 50 of the air purifier 4, the purified water is supplied in the gas-liquid contact chamber 41 a. Moisture is added to the air and humidified. At this time, if the temperature of the purified water is higher than the air temperature, the air is also heated.

  When the detected humidity RHr of the temperature / humidity sensor 61 reaches the preset target humidity RHt during this “humidifying operation mode” (S109 in FIG. 4), the detected humidity RHr is again set from the target humidity RHt. May be performed until the temperature becomes lower (S110 in FIG. 4).

  In the appropriate humidity operation process, the temperature of the circulating water is controlled to a temperature corresponding to the dew point temperature of the absolute humidity calculated by the temperature detected by the temperature / humidity sensor 61 and the relative humidity. In addition, you may make it switch to an "air purification / deodorizing driving | operation" instead of a suitable humidity temperature point process.

(Example of operation of the embodiment)
Next, measurement results obtained by actually driving the air conditioning system of the first embodiment and measurement results of the comparative example will be described.
In this operation example, in the summer, the target humidity RHt is set to 65% RH (relative humidity), the operation is performed in the “weak cooling and dehumidifying operation mode”, and the “appropriate humidity operation process” is performed when the detected humidity RHr reaches the target humidity RHt. went.

More specifically, an indoor space having a floor area of 30 m ² and a ceiling height of 2.5 m was used as the room R shown in FIG. 1, and the fan 42f of the air purifier 4 was driven at an air volume of 80 m ³ / h. Also, depending on the relationship between the detected room temperature Tr and the detected humidity RHr, the circulating water temperature is set to 10 ° C. during the “weak air-cooling dehumidifying operation mode”, and the dew point temperature is set to 18 ° C. during the “appropriate humidity operating process”. did.

  8A, 8B, and 8C show actual measurement data during the above operation, FIG. 8A shows the room temperature and circulating water temperature, FIG. 8B shows the room relative humidity, and FIG. 8C shows the dehumidification amount in the air purifier 4. Show.

  In the figure, the air purifier 4 was stopped between t0 and t1, the window (not shown) was opened, and the window was closed and the operation of the air purifier 4 was started from the time t1. Further, at time t5, in response to the humidity of the outside air exceeding the target humidity RHt, control was performed to reduce the temperature of the circulating water in the purified water heat exchanger 50 to 10 ° C. after time t6.

  As shown in these drawings, the air purifier 4 is operated in the “weak cooling and dehumidifying operation mode” after the time t1, so that the humidity of the air outlet (air outlet 43a) is not humidified by the air purifier 4. Was able to be suppressed. In this case, in a state where the detected humidity RHr is the target humidity RHt, the “appropriate humidity operation process” is executed, and the temperature of the circulating water in the purified water heat exchanger 50 is controlled to 18 ° C., so that the indoor humidity (detected humidity RHr ) Could be maintained at 65% RH. Moreover, when the temperature of the circulating water of the purified water heat exchanger 50 was lowered to 10 ° C. (after time t6), the humidity at the outlet (air outlet 43a) was suppressed and dehumidification could be performed.

Next, FIG. 9A, FIG. 9B, and FIG. 9C show actual measurement data of the comparative example.
This comparative example was executed on a different day from the above-described first embodiment, and during operation in the “weak cooling dehumidification operation mode”, the circulating water temperature was set to 10 ° C., and the “weak cooling dehumidification operation mode” At the time of a stop, the data at the time of setting to 20 degreeC higher than a dew point temperature are shown. 9A shows the room temperature and circulating water temperature, FIG. 9B shows the room relative humidity, and FIG. 9C shows the dehumidification amount in the air purifier 4. The operation of the air purifier 4 started at the time t01.

  As shown in these figures, after the operation of the air purifier 4 was started, the indoor humidity (detected humidity RHr) could be controlled in the vicinity of 65% RH, which is the target humidity. However, after the time t03, when the temperature of the circulating water was set to 20 ° C., the air purifier 4 humidified, and the humidity at the outlet (air outlet 43a) of the air purifier 4 increased. . For this reason, in the comparative example, the variation of the indoor humidity (detected humidity RHr) is larger than that in the operation example of the first embodiment.

(Effect of Embodiment 1)
Below, the effect of the air conditioning system of this Embodiment 1 is enumerated.
1) The air conditioning system of the embodiment
A heat exchanger 1 for air conditioning that adjusts the temperature in the house H by radiating and absorbing heat with circulating water as a heat exchange medium;
A heat pump outdoor unit 2 as a heat source device capable of heating and cooling circulating water as a heat exchange medium;
An air purifier 4 that takes in the air in the room R of the house H, contacts the purified water, and releases the purified air to the room R;
A temperature and humidity sensor 61 for detecting the temperature and humidity of the air in the room R of the house H;
Purified water heat exchanger 50 capable of heating and cooling purified water by heat exchange with circulating water as a heat exchange medium;
A control unit 6 as a control unit for controlling the temperature of the purified water by the purified water heat exchanger 50 based on the detection of the temperature and humidity sensor 61;
It is characterized by providing.
Therefore, it is possible to control the temperature of the purified water so as not to perform humidification that is not necessary in summer and dehumidification that is not necessary in winter. Thereby, a comfortable indoor humidity environment can be formed by the air purifier 4.

2) The air conditioning system of the embodiment
The control unit 6 dehumidifies the temperature of the circulating water supplied to the purified water heat exchanger 50 to a temperature lower than the dew point temperature at which the absolute humidity of the air in the room R of the house H becomes the saturated water vapor pressure. Processing (S103, S104) is executed.
Therefore, the purified water heat-exchanged by the purified water heat exchanger 50 is also set to a temperature lower than the dew point temperature of the absolute humidity of the air in the room R of the house H. In the gas-liquid contact chamber 41a of the air purifier 4, the purified water Water vapor in the air forms water droplets on the surface of the air to cool and dehumidify the air.

3) The air conditioning system of the embodiment
When the detected humidity RHr of the temperature / humidity sensor 61 is equal to or lower than a preset target humidity RHt during the dehumidifying operation process (S105), the control unit 6 sets the temperature of the circulating water supplied to the purified water heat exchanger 50. In addition, an appropriate humidity operation process (S106) is performed in which the dew point temperature is a temperature at which the absolute humidity becomes the saturated water vapor pressure.
Therefore, the purified water heat-exchanged by the purified water heat exchanger 50 is also set to the dew point temperature of the air in the room R, so that the air in the room R is neither dehumidified nor humidified, and the target Can be maintained at humidity.

4) The air conditioning system of the embodiment
The control unit 6 is a humidifying operation for controlling the temperature of the circulating water supplied to the purified water heat exchanger 50 to a temperature higher than a dew point temperature at which the absolute humidity of the air in the room R of the house H becomes a saturated water vapor pressure. Processing (S107, S108) is executed.
Therefore, the purified water heat-exchanged by the purified water heat exchanger 50 is also set to a temperature higher than the dew point temperature of the absolute humidity of the air in the room R of the house H. In the gas-liquid contact chamber 41a of the air purifier 4, the purified water The moisture can be added to the air for humidification.

5) The air conditioning system of the embodiment
The air conditioner heat exchanger 1 is provided in the underfloor UF of the house H so that the temperature of the room R of the house H can be adjusted via the air of the floor F and the underfloor UF by radiant heat,
The air purifier 4 is provided in the underfloor UF of the house H so that the air in the room R can be taken from the air intake port 42a and the purified air can be discharged from the air discharge port 43a to the room R.
Thus, since the heat exchanger 1 for air conditioning and the air purifier 4 are installed in the underfloor UF, the wiring distance of the piping for supplying purified water to the purified water heat exchanger 50 of the air purifier 4 is short. The connection work is also easy. As a result, the configuration can be simplified and the workability is excellent.

(Other embodiments)
Next, another embodiment of the present invention will be described.
In the description of the other embodiments, the same reference numerals as those in the first embodiment are assigned to the same components as those in the first embodiment, and the description thereof will be omitted. Only the differences from the first embodiment will be described.

(Embodiment 2)
The air conditioning system of the second embodiment is a modification of the first embodiment. When the control unit 6 controls the operation of the air purifier 4, the dehumidifying operation process, the humidifying operation process, and the appropriate humidity operation process are automatically performed. This is an example of executing.

  FIG. 10 is a flowchart showing a flow of operation control processing of the air purifier 4 in the air conditioning system of the second embodiment.

  In step S201, the detected humidity RHr detected by the temperature / humidity sensor 61 is compared with the target humidity RHt. If the detected humidity RHr is higher than the target humidity RHt, the process proceeds to step S202. If the detected humidity RHr is lower than the target humidity RHt, the process proceeds to step S203, and the detected humidity RHr and the target humidity RHt are equal. Advances to step S204.

  In this comparison, the detected humidity RHr and the target humidity RHt may have a certain range. In other words, the process proceeds to step S202 when the detected humidity RHr is higher than the target humidity RHt by a predetermined level or more, proceeds to step S203 when the detected humidity RHr is lower than the target humidity RHt by a predetermined level or higher, and otherwise proceeds to step S204. Good.

  In step S202, which proceeds when the detected humidity RHr is higher than the target humidity RHt, a dehumidifying operation process is performed. In this dehumidifying operation process, the process of step S103 and step S104 of the first embodiment is basically executed. That is, the absolute humidity is obtained from the relative humidity detected by the temperature / humidity sensor 61. And the dew point temperature of absolute humidity is calculated | required and the temperature of the circulating water supplied to the heat exchange part 51 is set to temperature lower than a dew point temperature.

  In step S203, which proceeds when the detected humidity RHr is lower than the target humidity RHt, a humidifying operation process is performed. In this humidification process, the steps S107 and S108 of the first embodiment are basically executed. That is, the absolute humidity is obtained from the relative humidity detected by the temperature / humidity sensor 61. And the dew point temperature of absolute humidity is calculated | required and the temperature of the circulating water supplied to the heat exchange part 51 is set to temperature higher than a dew point temperature.

  In step S204, which proceeds when the detected humidity RHr and the target humidity RHt are equal, an appropriate humidity operation process is performed. In this appropriate humidity operation process, the absolute humidity is obtained from the relative humidity detected by the temperature / humidity sensor 61. And the dew point temperature of absolute humidity is calculated | required and the temperature of the circulating water supplied to the heat exchange part 51 is set to dew point temperature.

  Therefore, even in the air conditioning system according to the second embodiment, when the air purifier 4 is in operation, the humidity in the room R can be controlled to the target humidity RHt to maintain an appropriate humidity.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

For example, although the heat exchanger for air conditioning illustrated what was installed under the floor, it is not limited to this, The thing of the type which heat-exchanges directly with indoor air may be used, or it is used for flooring You may use the type which wired piping for heat exchange.
Moreover, although the heat pump outdoor unit as a heat source device was illustrated, it is not limited to this, An absorption-type cold / hot water machine, the heating / cooling apparatus using a Peltier device, etc. can be used. Furthermore, it is also possible to use a heating means and a cooling means that are separately provided so that the heating medium and the cooling medium are respectively supplied to the heat exchange section of the air purifier.
The building to which the air conditioning system of the present invention is applied is not limited to a house.

1 Heat exchanger for air conditioning 2 Heat pump outdoor unit (heat source device)
4 Air purifier 6 Control unit (control unit)
42a Air intake port 43a Air exhaust port 50 Purified water heat exchanger (purified water heat exchanger)
61 Temperature / humidity sensor AS Air conditioning system RHr Detected humidity RHt Target humidity H Residential R Indoor

Claims (5)

A heat exchanger for air conditioning that adjusts the temperature in the building by radiating and absorbing heat with a heat exchange medium;
A heat source device capable of heating and cooling the heat exchange medium;
An air purifier for taking in the air in the building and bringing it into contact with purified water and discharging the purified air into the building;
A temperature and humidity sensor for detecting the temperature and humidity of the air in the building;
A purified water heat exchanging section capable of heating and cooling the purified water by heat exchange with the heat exchange medium;
A control unit for controlling the temperature of the purified water by the purified water heat exchange unit based on the detection of the temperature and humidity sensor;
An air conditioning system comprising: The air conditioning system according to claim 1,
The control unit performs a dehumidifying operation process for controlling the temperature of the heat exchange medium supplied to the purified water heat exchange unit to be lower than a temperature at which the absolute humidity of air in the building becomes a saturated water vapor pressure. An air conditioning system characterized by that. The air conditioning system according to claim 2,
When the humidity detected by the temperature / humidity sensor is equal to or lower than a preset target humidity during the execution of the dehumidifying operation process, the control unit sets the temperature of the heat exchange medium supplied to the purified water heat exchange unit. An air conditioning system that performs an appropriate humidity operation process for controlling the absolute humidity of the air in the building to a temperature at which the saturated water vapor pressure is reached. In the air conditioning system according to any one of claims 1 to 3,
The control unit performs a humidification operation process for controlling the temperature of the heat exchange medium supplied to the purified water heat exchange unit to a temperature higher than a temperature at which the absolute humidity of air in the building becomes a saturated water vapor pressure. An air conditioning system characterized by In the air conditioning system according to any one of claims 1 to 4,
The air conditioner heat exchanger is provided under the floor of the building so as to be able to adjust the temperature of the room interior of the building via the floor and the air under the floor by radiant heat,
An air conditioning system, wherein the air purifier is provided under the floor of the building so as to be able to take in indoor air from an air intake and discharge the purified air into the room through an air outlet.