JP5127280B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner having functions of dehumidification and humidification by an adsorbent.

As a first prior art, a humidifying unit including a honeycomb-shaped rotating rotor carrying an adsorbent is formed integrally with an outdoor unit of an air conditioner, and humidified air is transported indoors through an air duct. In addition, a hydrophobic zeolite having a low adsorption energy is used as the adsorbent supported on the rotating rotor, and the SiO ₂ molar fraction is larger than the Al ₂ O ₃ molar fraction, that is, SiO ₂ / Al ₂ O _3. There is known a technique in which a material having a value larger than 1 is used (see, for example, Patent Document 1).

  As a second conventional technique, an adsorbent, a blower, a heating source, an air supply switching unit and an exhaust switching unit are provided, and dehumidification ventilation and humidification ventilation are performed by switching the air supply port and the exhaust port to the outside or the room. The technique which can do is known (for example, refer patent document 2).

  As a third conventional technique, a dehumidifying / humidifying device including a rotatable moisture absorbent material, a blower, and a regeneration heater is installed in an indoor unit of an air conditioner, and the dry air generated in the processing chamber by the moisture absorbent material or the regeneration chamber is used. A technique is known in which dehumidification or humidification is performed by switching generated damper air to each duct that communicates indoors and outdoors with the generated wet air (see, for example, Patent Document 3).

JP 2001-96126 A (paragraphs 0023, 0030, 0042) Japanese Patent No. 2830493 (paragraphs 0010-0012, FIG. 1) Japanese Patent No. 2998513 (paragraphs 0039-0046, FIG. 1)

In the first prior art disclosed in Patent Document 1, since the outdoor high-humidity air is adsorbed by the adsorbent, it is easier to secure the amount of adsorption than using indoor air, but when transporting humidified air into the room There was a problem of condensation in the air duct.
In addition, if hydrophobic zeolite with low adsorption energy is used as the adsorbent, the amount of zeolite adsorbed is smaller than that of silica gel and activated carbon adsorbents. In particular, hydrophobic zeolite requires less adsorption energy, but it is sufficient because the amount of adsorption is small. There was a problem that a sufficient amount of humidification could not be obtained.

  Further, in the second prior art disclosed in Patent Document 2, dehumidifying operation and humidifying operation can be performed by switching the air supply port and the exhaust port, but there is always one air path passing through the adsorbent. The adsorbing step of adsorbing moisture on the adsorbent and the regeneration step of dehumidifying the moisture are alternately performed, that is, there is a drawback that continuous dehumidification and humidification cannot be performed. Also, during the dehumidifying operation in the summer, the outdoor high-temperature and high-humidity air is adsorbed and supplied indoors, so the humidity does not drop sufficiently, and during the humidifying operation in the winter, the outdoor low-temperature air is heated and regenerated. There was a problem that would become larger.

  Further, in the third prior art disclosed in Patent Document 3, since the hygroscopic material is rotatable, it is possible to perform dehumidifying operation and humidifying operation continuously. However, since a heater is required for regeneration, energy saving is possible. There was a problem of low nature. In addition, humidification or dehumidification is performed by inhaling indoor air, so it is regenerated using humidified and relatively humid air during humidifying operation, and dehumidified and relatively humid air is adsorbed during dehumidifying operation. Therefore, there was a problem that a sufficient dehumidifying / humidifying amount could not be obtained.

  The present invention has been made to solve the above-described problems, and has as its main object to provide an air conditioner equipped with a dehumidifying / humidifying function that can be regenerated without a heater and is highly energy-saving. To do.

An air conditioner according to the present invention includes a compressor, a four-way valve, an outdoor unit heat exchanger, and an outdoor unit having an expansion valve, and an indoor unit having an indoor unit heat exchanger, the compressor, the four-way valve, An air conditioner having a heat pump cycle in which an outdoor unit heat exchanger, an expansion valve, and an indoor unit heat exchanger are sequentially connected by piping and can be switched between heating and cooling are provided with a first blowing unit, and the first blowing unit Has a first air passage that takes in outdoor air and discharges it outside the room, and second air blowing means. Air is taken in by the second air blowing means and discharged into the room through the indoor unit heat exchanger. The second air path, the first air path and the second air path are arranged across the area, the area facing the first air path and the area facing the second air path move, Moisture adsorption means for adsorbing moisture in the air of the air passage and regenerating the adsorbed water with the air of the other air passage The indoor unit heat exchanger is disposed upstream of the moisture adsorption means in the second air path, and the indoor unit heat exchanger functions as a condenser to heat the air in the second air path. When the water adsorbing means adsorbs the moisture adsorbed in the first air passage, it is regenerated in the second air passage by the heated air in the second air passage, and the indoor unit heat exchanger functions as an evaporator. When the air in the second air passage is cooled, the moisture adsorbed by the moisture adsorbing means in the second air passage is caused by the outdoor air taken in via the first air passage and the first air passage. The first moisture adsorbing means and the second moisture adsorbing means, which are regenerated in the inside and carrying different adsorbents as the moisture adsorbing means, are arranged in series, and the first air blowing means and the second air blowing means are in the air conditioning operation. to allow forward and reverse rotation in response to, those for switching the direction of rotation during the heating operation in accordance with the cooling and heating operations That.

The air conditioner according to the present invention includes a compressor, a four-way valve, an outdoor unit heat exchanger, an outdoor unit having an expansion valve, and an indoor unit having an indoor unit heat exchanger. In an air conditioner having a heat pump cycle in which a valve, an outdoor unit heat exchanger, an expansion valve, and an indoor unit heat exchanger are sequentially connected by piping to switch between cooling and heating, the air conditioner has a first blowing means, It has the 1st air path which takes in outdoor air with a ventilation means, and discharges it outside a room, and has the 2nd ventilation means, takes in indoor air with this 2nd ventilation means, and goes indoors via an indoor unit heat exchanger. The second air path to be discharged, the first air path and the second air path are arranged across the area, the area facing the first air path and the area facing the second air path are moved, Moisture absorption that adsorbs moisture in the air of one air passage and regenerates the adsorbed water with the air of the other air passage. And in the second air passage, the indoor unit heat exchanger is disposed upstream of the moisture adsorption means, and the indoor unit heat exchanger functions as a condenser and air in the second air passage When the water is heated, the moisture adsorbed by the moisture adsorbing means in the first air path is regenerated in the second air path by the heated air in the second air path, and the indoor unit heat exchanger is When the air in the second air passage is cooled by functioning as the water adsorbed in the second air passage by the moisture adsorbing means, the outdoor air taken in via the first air passage causes the first air passage to The first moisture adsorbing means and the second moisture adsorbing means that are regenerated in the air passage and carry different adsorbents as the moisture adsorbing means are arranged in series, and the first blowing means and the second blowing means are to allow forward and reverse rotation in response to cooling and heating operations, switching the rotational direction during the heating operation in accordance with the cooling and heating operations By combining the heat pump cycle and the dehumidifying / humidifying device, it is possible to regenerate without a heater using the heat of the refrigerant discharged from the compressor or the condensed exhaust heat, and an air conditioner equipped with a highly energy-saving dehumidifying / humidifying function There is an effect that it is obtained.

Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram of an air conditioner equipped with a dehumidifying / humidifying function in Embodiment 1 of the present invention, and FIG. 1 (a) is a schematic configuration diagram of an indoor side device viewed from the lower surface, FIG. FIG. 2 is a diagram showing a schematic configuration of an indoor side device viewed from the side and a refrigerant circuit (heating circuit) of a heat pump cycle. As is well known, the heat pump cycle includes a compressor 4, a four-way valve 7 that switches as indicated by a solid line in the drawing during heating operation, and a broken line in the drawing during cooling operation, a condenser during cooling operation, and an evaporator during heating operation. As an outdoor unit heat exchanger 5, an expansion valve 6 that expands high-temperature and high-pressure liquid condensed in the condenser to form a low-temperature and low-pressure refrigerant, and an evaporator during cooling operation The indoor unit 1 includes the indoor unit heat exchanger 3 that functions as a condenser during the heating operation, and heat obtained by heat exchange with the outdoor air can be supplied indoors. Although the indoor unit heat exchanger 3 is shown as being separated into two in FIG. 1B, it is installed so as to go around the indoor suction port 15 as shown by the broken line in FIG. Is. In FIG. 1A, indoor suction ports 16 are formed at four locations around the indoor heat exchanger 3.

  The dehumidifying / humidifying unit 9 is installed behind the ceiling in the vicinity of the indoor unit 1 installed on the ceiling surface 8. Further, as shown in FIG. 1 (b), a first air air passage 12 is formed by the first air blowing means 11 stored in the dehumidifying / humidifying unit 9, and is already installed in the indoor unit 1. A second air air passage 14 is formed by the indoor unit blower as the second air blowing means 13, and both air passages are partitioned by the side wall of the indoor unit 1 and the dehumidifying / humidifying unit 9. The first air air passage 12 communicates with the outside through an air supply duct 17 and an exhaust duct 18 connected to the outside, and the second air air passage 14 passes through the indoor air inlet 15 and the indoor air outlet 16 of the indoor unit 1. It communicates with the room through. Moreover, the moisture adsorbing means 10 having a honeycomb structure carrying an adsorbent and having air permeability in the axial direction is inserted into the downstream side of the indoor heat exchanger 3 in the indoor unit 1 and the dehumidifying / humidifying unit 9 in the first form. The air air passage 12 and the second air air passage 14 are installed. The moisture adsorbing means 10 is cylindrical and rotatable, and as the adsorbent to be supported, a porous substrate made of, for example, zeolite, silica gel, activated carbon or the like is applied, surface-treated or impregnated.

Next, an example of the operation will be described. First, since the humidification operation is generally required when the room is dried during heating in winter, the outdoor air has a low temperature (7 ° C./87% RH under the heating standard condition). During the heating and humidifying operation, the first air air passage 12 becomes an adsorption air passage, sucks low-temperature and high-humidity outdoor air from the air supply duct 17, adsorbs moisture to the moisture adsorbing means 10, and supplies dry air as the first air blower. The air is exhausted outside by the means 11 through the exhaust duct 18.
On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air that is dried by the second air blowing means 13 is sucked from the indoor suction port 15 and functions as a condenser for heating operation. 3 is heated to become heated air. The moisture adsorbing means 10 rotates, the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is discharged from the indoor outlet 16 and the room is heated and humidified.

At this time, when a general adsorbent such as zeolite or silica gel is used as the adsorbent supported on the moisture adsorbing means 10, the relative humidity of the regeneration inlet air needs to be at least 10% or less for sufficient humidification. Therefore, even if the indoor air heated to 20 ° C. is sucked by heating, it is necessary to raise the temperature to about 45 ° C. and take moisture from the adsorption means into the air side. For example, as shown in FIG. 1, when an indoor unit blower 13 of an air conditioner (air flow rate with an air conditioning function of 1 horsepower model: about 8 m ³ / min) is used as a regenerative blower, if the temperature is raised with a conventional heater, About 1 kW heater input is required, but by combining with the heat pump cycle and regenerating with the outlet air of the condenser (indoor heat exchanger 3), a regenerated air temperature of about 48 ° C. can be obtained during rated operation. Renewal without heater is possible, resulting in significant energy savings.

  Next, since the dehumidifying operation is generally used at the same time as the cooling operation at high humidity in summer, the outdoor air becomes a high temperature (35 ° C./40% RH in the cooling standard condition). At the time of the cooling and dehumidifying operation, the second air air passage 14 becomes an adsorption air passage, the indoor air is sucked in by the second air blowing means 13 from the indoor suction port 15, and the indoor heat functioning as an evaporator for the cooling operation. By passing through the exchanger 3, the temperature is lowered to near the dew point temperature and becomes low-temperature and high-humidity air. The moisture of the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10, and the generated dry air is discharged from the indoor outlet 16 to cool and dehumidify the room. On the other hand, in the first air air passage 12 serving as the regeneration air passage, the moisture adsorbing means 10 rotates, and the water adsorbed by the second air air passage 14 and transferred to the first air air passage 12 side is supplied. The air is regenerated by the outdoor high-temperature air sucked from the air duct 17 and is exhausted outside the room through the exhaust duct 18 by the first blowing means 11 as high-temperature high-humidity air.

  At this time, outdoor air is used as the regeneration inlet air, so the relative humidity is relatively high and the regeneration temperature is insufficient. However, the dew point is combined with the heat pump cycle by the evaporator (indoor heat exchanger 3) as the adsorption inlet air. Since the air is used to increase the humidity to near 100% relative humidity that decreases to near the temperature and the adsorption amount of the adsorbent is the largest, the difference from the relative humidity of the regeneration air becomes large, and the adsorption amount is secured. be able to. In addition, dehumidification is performed as a single heat pump cycle. By combining dehumidification with the moisture adsorbing means 10, the amount of dehumidification increases without a heater, which not only improves the dehumidification efficiency but also reduces the latent heat load by reducing the indoor humidity. This contributes to improvement of the operation efficiency of the heat pump cycle.

  In FIG. 1, a heat pump cycle composed of minimum elements is shown. As shown in FIG. 15, a receiver 56 is added after the expansion valve 6a, and an expansion valve 6b is added to the receiver outlet. Similarly, as shown in FIG. 16, an accumulator 57 may be added to the compressor suction portion. By adding the receiver 56 or the accumulator 57, it is possible to accumulate an excess refrigerant amount that is the difference between the refrigerant amount required for cooling and heating, and to obtain an air conditioner of a type that does not require additional refrigerant on site. .

  In FIG. 1, the dehumidifying / humidifying unit 9 is installed on only one of the four side surfaces of the indoor unit 1, but it may be installed on two, three, or the entire surface. By increasing the number of dehumidifying / humidifying units 9, a larger amount of dehumidifying / humidifying can be secured, and dehumidified air and humidified air can be selectively supplied only in a necessary direction.

  In FIG. 1, the first air air passage 12 communicates with the outside through the air supply duct 17 and the exhaust duct 18, but either or both of the air supply duct 17 and the exhaust duct 18 are removed, The air may be supplied from the air or exhausted to the back of the ceiling. In this case, during humidification operation in winter, dry air is supplied to the back of the ceiling for dehumidification, so that the humidity is reduced and condensation on the back of the ceiling can be prevented.

  In FIG. 1, the moisture adsorbing means 10 is disposed on the downstream side of the indoor heat exchanger 3 in the second air air passage 14, but may be disposed on the upstream side of the indoor heat exchanger 3. Also in this case, during the dehumidifying operation, the air whose humidity has been lowered by the moisture adsorbing means 10 is sucked into the evaporator (indoor heat exchanger 3), so that there is an effect of reducing the latent heat load on the air conditioner, and the adsorption Since the temperature slightly increases due to the heat of adsorption of the agent, the drain water can be reduced.

  In FIG. 1, the moisture adsorbing means 10 is regenerated using air heated by the indoor heat exchanger 3 functioning as a condenser during the humidifying operation, and hot outdoor air during the dehumidifying operation. As described above, in the first air air passage 12, the first auxiliary heater 19 is provided upstream of the moisture adsorption means 10, and in the second air air passage 14, the second auxiliary heater 19 is provided upstream of the moisture adsorption means 10. A heater 20 may be installed. Further, only one of the first auxiliary heater 19 and the second auxiliary heater 20 may be installed. When the first auxiliary heater 19 is installed, a sufficient regeneration temperature can be ensured even if the outdoor air is at a low temperature during the dehumidifying operation. On the other hand, when the second auxiliary heater 20 is installed, the humidification is performed. Even when the air conditioning load is small during operation and the condensation temperature is 40 ° C. or lower, the regeneration temperature can be ensured by raising the temperature to 45 ° C. or higher.

  In FIG. 2, the air heated by the indoor heat exchanger 3 and the second auxiliary heater 20 functioning as a condenser during the humidifying operation and the high temperature outdoor air are raised by the first auxiliary heater 19 during the dehumidifying operation. As shown in FIG. 3, instead of the first auxiliary heater 19, the first regeneration auxiliary heat exchanger 21 is replaced by the second regeneration heater 20 instead of the second auxiliary heater 20, as shown in FIG. The auxiliary heat exchanger 22 is installed, and the first regeneration auxiliary heat exchanger 21 and the second regeneration auxiliary heat exchanger 22 are connected to a pipe bypassed from the outlet of the compressor 4, a switching valve 23 and a check valve 24. You may connect via. Further, the switching valve 23 is not used, and only one of the first regeneration auxiliary heat exchanger 21 and the second regeneration auxiliary heat exchanger 22 may be installed. At this time, the same effect as when the first auxiliary heater 19 and the second auxiliary heater 20 are installed can be obtained without increasing the heater input.

  As described above, by combining the heat pump cycle and the dehumidifying / humidifying device, it is possible to regenerate without the heater using the heat of the refrigerant discharged from the compressor or the condensed exhaust heat, and the energy-saving heating / humidifying operation and cooling / dehumidification are possible. An air conditioner that can be operated can be obtained.

Embodiment 2. FIG.
FIG. 4 is a schematic configuration diagram of an air conditioner equipped with a dehumidifying / humidifying function according to Embodiment 2 of the present invention, and FIG. 4 (a) is a schematic configuration diagram of an indoor device viewed from the side, FIG. FIG. 3 is a diagram illustrating a schematic configuration of the indoor side device viewed from the lower surface and a refrigerant circuit (heating circuit) of a heat pump cycle. The description of the same parts as those in Embodiment 1 is omitted. Although the indoor unit heat exchanger 3 is shown as being separated into two in FIG. 4 (a), the indoor unit heat exchanger 3 is installed so as to go around the indoor suction port 15 as shown in FIG. 4 (b). It is. The dehumidifying / humidifying unit 9 is installed on the ceiling behind the indoor unit 1 installed on the ceiling surface 8. Inside the dehumidifying / humidifying unit 9, a first air air passage 12 and a second air air passage 14 are formed by the partition wall 25, and the first air air passage 12 includes the first air blowing means 11 and the second air air passage 12. Second air blowing means 13 is installed in the air air passage 14. The first air air passage 12 communicates with the outdoor as in the first embodiment, and the second air air passage 14 is connected to the indoor unit by the first indoor unit connection duct 26 and the second indoor unit connection duct 27. 1, and communicates with the room through the indoor inlet 15 and the indoor outlet 16 of the indoor unit 1. Further, the moisture adsorbing means 10 is installed inside the dehumidifying / humidifying unit 9 so as to straddle the first air air passage 12 and the second air air passage 14.

  Next, an example of the operation will be described. First, since the humidification operation is generally required when the room is dried during heating in winter, the outdoor air has a low temperature and high humidity (7 ° C./87% RH under the heating standard condition). During the heating and humidifying operation, the first air air passage 12 becomes an adsorption air passage, sucks low-temperature and high-humidity outdoor air from the air supply duct 17, adsorbs moisture to the moisture adsorbing means 10, and supplies dry air as the first air blower. The air is exhausted outside by the means 11 through the exhaust duct 18. On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air is sucked from the indoor air inlet 15 by the indoor unit blower, and the temperature is raised by the indoor heat exchanger 3 functioning as a condenser for heating operation. It becomes heated air and is taken into the dehumidifying / humidifying unit 9 by the second air blowing means 13 through the first indoor unit connecting duct 26. The moisture adsorbing means 10 rotates, the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is transported to the indoor unit 1 through the second indoor unit connection duct 27 and discharged from the indoor outlet 16 so that the room is heated and humidified. At this time, in the same manner as in the first embodiment, by combining with the heat pump cycle and regenerating with the outlet air of the condenser (indoor heat exchanger 3), a sufficient regeneration air temperature can be obtained, so that regeneration without a heater is possible. It becomes energy saving greatly.

  Next, since the dehumidifying operation is generally used at the same time as the cooling operation at high humidity in summer, the outdoor air becomes a high temperature (35 ° C./40% RH in the cooling standard condition). During the cooling and dehumidifying operation, the second air air passage 14 serves as an adsorption air passage, the indoor air is sucked from the indoor suction port 15 by the indoor unit blower, and the indoor heat exchanger 3 functioning as an evaporator for the cooling operation. , The temperature is lowered to near the dew point temperature and becomes low-temperature and high-humidity air, and is taken into the dehumidifying / humidifying unit 9 through the first indoor unit connection duct 26 by the second blowing means 13. The moisture of the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10, and the generated dry air is conveyed to the indoor unit 1 through the second indoor unit connection duct 27 and discharged from the indoor outlet 16. Is dehumidified. On the other hand, in the first air air passage 12 serving as the regeneration air passage, the moisture adsorbing means 10 rotates, and the water adsorbed by the second air air passage 14 and transferred to the first air air passage 12 side is supplied. The air is regenerated by the outdoor high-temperature air sucked from the air duct 17 and is exhausted outside the room through the exhaust duct 18 by the first blowing means 11 as high-temperature high-humidity air. At this time, as in the first embodiment, in combination with the heat pump cycle, the adsorption inlet air is reduced to near the dew point temperature by the evaporator (indoor heat exchanger 3), and the adsorption amount of the adsorbent is the largest at 100% relative humidity. Since the air whose humidity has increased to the vicinity is used, the amount of adsorption can be secured and the amount of dehumidification can be increased without using a heater.This not only improves the dehumidification efficiency, but also reduces the latent heat load due to a decrease in indoor humidity. It can reduce, and it contributes to the improvement of the operation efficiency of a heat pump cycle.

  In FIG. 4, the heat pump cycle configured with the minimum elements is illustrated. However, as illustrated in FIG. 15 of the first embodiment, the receiver 56 and the receiver 56 are disposed after the expansion valve 6 a. An expansion valve 6b may be added to the receiver outlet, and similarly, an accumulator 57 may be added to the compressor suction portion as shown in FIG. By adding the receiver 56 or the accumulator 57, it is possible to accumulate an excess refrigerant amount that is the difference between the refrigerant amount required for cooling and heating, and to obtain an air conditioner of a type that does not require additional refrigerant on site. .

  In FIG. 4, the two side surfaces facing each other of the indoor unit 1 are used and one dehumidifying / humidifying unit 9 is connected. However, the remaining two side surfaces may be used to add the dehumidifying / humidifying unit 9. . By increasing the number of dehumidifying / humidifying units 9, a larger amount of dehumidifying / humidifying can be secured, and dehumidified air and humidified air can be selectively supplied only in a necessary direction.

  In FIG. 4, the first air air passage 12 communicates with the outside through the air supply duct 17 and the exhaust duct 18, but either or both of the air supply duct 17 and the exhaust duct 18 are removed, The air may be supplied from the air or exhausted to the back of the ceiling. In this case, during humidification operation in winter, dry air is supplied to the back of the ceiling for dehumidification, so that the humidity is reduced and condensation on the back of the ceiling can be prevented.

  In FIG. 4, the moisture adsorbing means 10 is regenerated using the air heated by the indoor heat exchanger 3 functioning as a condenser during the humidifying operation and the high temperature outdoor air during the dehumidifying operation. As described above, in the first air air passage 12, the first auxiliary heater 19 is provided upstream of the moisture adsorption means 10, and in the second air air passage 14, the second auxiliary heater 19 is provided upstream of the moisture adsorption means 10. A heater 20 may be installed. Further, only one of the first auxiliary heater 19 and the second auxiliary heater 20 may be installed. When the first auxiliary heater 19 is installed, a sufficient regeneration temperature can be ensured even if the outdoor air is at a low temperature during the dehumidifying operation. On the other hand, when the second auxiliary heater 20 is installed, the humidification is performed. Even when the air conditioning load is small during operation and the condensation temperature is 40 ° C. or lower, the regeneration temperature can be ensured by raising the temperature to 45 ° C. or higher.

  In FIG. 5, the air heated by the indoor heat exchanger 3 and the second auxiliary heater 20 functioning as a condenser during the humidifying operation, and the high temperature outdoor air is raised by the first auxiliary heater 19 during the dehumidifying operation. As shown in FIG. 6, instead of the first auxiliary heater 19, the first regeneration auxiliary heat exchanger 21 is replaced with the second regeneration heater 20 instead of the second auxiliary heater 20, as shown in FIG. The auxiliary heat exchanger 22 is installed, and the first regeneration auxiliary heat exchanger 21 and the second regeneration auxiliary heat exchanger 22 are connected to a pipe bypassed from the outlet of the compressor 4, a switching valve 23 and a check valve 24. You may connect via. Further, the switching valve 23 is not used, and only one of the first regeneration auxiliary heat exchanger 21 and the second regeneration auxiliary heat exchanger 22 may be installed. At this time, the same effect as when the first auxiliary heater 19 and the second auxiliary heater 20 are installed can be obtained without increasing the heater input.

  As described above, by combining the heat pump cycle and the dehumidifying / humidifying device, it is possible to regenerate without the heater using the heat of the refrigerant discharged from the compressor or the condensed exhaust heat, and the energy-saving heating / humidifying operation and cooling / dehumidification are possible. An air conditioner that can be operated can be obtained.

Embodiment 3 FIG.
FIG. 7 is a schematic configuration diagram of an air conditioner equipped with a dehumidifying / humidifying function according to Embodiment 3 of the present invention, and shows a schematic configuration of an indoor device viewed from the side and a refrigerant circuit (heating circuit) of a heat pump cycle. It is a figure. The description of the same parts as those in Embodiment 1 is omitted. In the first air air passage 12 formed inside the dehumidifying / humidifying unit 9, an auxiliary heat exchanger 28 connected in series with the outdoor heat exchanger 5 is installed upstream of the moisture adsorption means 10.

  Next, an example of the operation will be described. First, since the humidification operation is generally required when the room is dried during heating in winter, the outdoor air has a low temperature (7 ° C./87% RH under the heating standard condition). During the heating / humidifying operation, the first air air passage 12 becomes an adsorption air passage, and sucks outdoor air from the air supply duct 17 and passes through the auxiliary heat exchanger 28 functioning as an evaporator for the heating operation. The temperature drops to near the dew point temperature, resulting in low temperature and high humidity air. The moisture in the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10 to become dry air, and is exhausted to the outside by the first blower means 11 through the exhaust duct 18. On the other hand, in the second air air passage 14 serving as a regenerative air passage, the indoor air is sucked from the indoor suction port 15 by the second air blowing means 13, and the indoor heat exchanger 3 functioning as a condenser for heating operation is used. The temperature is raised to become heated air. The moisture adsorbing means 10 rotates, the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is discharged from the indoor outlet 16 and the room is heated and humidified.

  At this time, in combination with the heat pump cycle, the air that has been reduced to near the dew point temperature by the evaporator (auxiliary heat exchanger 28) as the adsorption inlet air, and the humidity has increased to about 100% relative humidity where the adsorption amount of the adsorbent is the largest. Since it is used, the amount of adsorption can be increased. Further, as in the first and second embodiments, regeneration with the outlet air of the condenser (indoor heat exchanger 3) provides a sufficient regeneration air temperature, so that regeneration without a heater is possible. Energy saving.

  Next, since the dehumidifying operation is generally used at the same time as the cooling operation at high humidity in summer, the outdoor air becomes a high temperature (35 ° C./40% RH in the cooling standard condition). At the time of the cooling and dehumidifying operation, the second air air passage 14 becomes an adsorption air passage, the indoor air is sucked in by the second air blowing means 13 from the indoor suction port 15, and the indoor heat functioning as an evaporator for the cooling operation. By passing through the exchanger 3, the temperature is lowered to near the dew point temperature and becomes low-temperature and high-humidity air. The moisture of the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10, and the generated dry air is discharged from the indoor outlet 16 to cool and dehumidify the room. On the other hand, in the first air air passage 12 serving as a regeneration air passage, the outdoor air sucked from the air supply duct 17 is heated by the auxiliary heat exchanger 28 functioning as a condenser for the cooling operation and heated air. It becomes. The moisture adsorbing means 10 rotates, the moisture adsorbed by the second air air passage 14 and transferred to the first air air passage 12 side is regenerated by the heated air, and the first air blowing means 11 is formed as high-temperature high-humidity air. Thus, the air is exhausted outside through the exhaust duct 18.

At this time, since outdoor air is used as the regeneration inlet air, the relative humidity is relatively high and the regeneration temperature is insufficient (cooling standard condition: 35 ° C./40% RH). However, as shown in FIG. By combining with the cycle and regenerating with the outlet air of the auxiliary heat exchanger 28 connected in series with the outdoor heat exchanger 5 functioning as a condenser, the regeneration temperature can be raised without a heater. For example, if an air blower indoor unit blower (air flow capacity of air-conditioning function 1 horsepower model: approx. 8 m ³ / min) is used as an adsorption blower, and the regenerative air flow is also equivalent, the regeneration will be approximately 42 ° C during rated operation. An air temperature is obtained, which corresponds to heating with a heater input of about 280 W when the temperature is raised by a conventional heater. Similarly to Embodiment 1 and Embodiment 2, combined with the heat pump cycle, the adsorption inlet air is reduced to near the dew point temperature by the evaporator (indoor heat exchanger 3), and the amount of adsorption of the adsorbent is the largest. Since air whose humidity has increased to around 100% is used, the amount of adsorption can be secured and the amount of dehumidification can be increased without a heater. This not only improves dehumidification efficiency, but also reduces indoor humidity. The latent heat load can be reduced, which contributes to the improvement of the operation efficiency of the heat pump cycle.

  In FIG. 7, the dehumidifying / humidifying unit 9 is installed on only one of the four side surfaces of the indoor unit 1, but may be installed on two, three, or the entire surface. By increasing the number of dehumidifying / humidifying units 9, a larger amount of dehumidifying / humidifying can be secured, and dehumidified air and humidified air can be selectively supplied only in a necessary direction.

  In FIG. 7, the first air air passage 12 communicates with the outside through the air supply duct 17 and the exhaust duct 18, but either or both of the air supply duct 17 and the exhaust duct 18 are removed and the back of the ceiling The air may be supplied from the air or exhausted to the back of the ceiling. In this case, during humidification operation in winter, dry air is supplied to the back of the ceiling for dehumidification, so that the humidity is reduced and condensation on the back of the ceiling can be prevented.

  As described above, by combining the heat pump cycle and the dehumidifying / humidifying device and installing the auxiliary heat exchanger connected in series with the outdoor heat exchanger in the dehumidifying / humidifying device, the high-humidity air at the outlet of the evaporator is used. The adsorption amount of the moisture adsorption means can be increased, and it is possible to regenerate without a heater using the high-temperature air at the outlet of the condenser, which has high dehumidifying / humidifying performance and high energy saving heating / humidifying operation and cooling / dehumidifying operation. A possible air conditioner can be obtained.

Embodiment 4 FIG.
FIG. 8 is a schematic configuration diagram of an air conditioner equipped with a dehumidifying / humidifying function according to Embodiment 4 of the present invention, and shows a schematic configuration of an indoor device viewed from the side and a refrigerant circuit (heating circuit) of a heat pump cycle. It is a figure. The description of the same parts as those in Embodiment 1 is omitted. A rotation driving means 29 is connected to the rotatable moisture adsorbing means 10 installed in the dehumidifying / humidifying unit 9, and the air volume detecting means 30 is disposed upstream of the moisture adsorbing means 10 in the first air air passage 12. The first temperature detecting means 31 and the first humidity detecting means 32 are installed, and the second temperature detecting means 33 and the second humidity detecting means 34 are installed on the downstream side.

  Next, an example of the operation will be described. First, during the humidifying operation, the first air air passage 12 becomes an adsorption air passage, and sucks outdoor air of low temperature and high humidity from the air supply duct 17. The sucked outdoor air has an air volume V detected by the air volume detector 30, an inlet air temperature T 1 detected by the first temperature detector 31, and an inlet air relative humidity φ 1 detected by the first humidity detector 32. Thereafter, moisture is adsorbed by the moisture adsorbing means 10 to become dry air, the outlet air temperature T2 is detected by the second temperature detecting means 33, and the outlet air relative humidity φ2 is detected by the second humidity detecting means 34. The air is exhausted out of the room by the means 11 through the exhaust duct 18. On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air is sucked from the indoor air inlet 15 by the second air blowing means 13, and the humidification operation is generally performed when the room is dried during heating in winter. Since this is necessary, the temperature is raised by the indoor heat exchanger 3 functioning as a condenser to become heated air. The moisture adsorbing means 10 rotates, the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is discharged from the indoor outlet 16 and the room is heated and humidified.

Next, in the dehumidifying operation, the second air air passage 14 becomes an adsorption air passage, and the indoor air is sucked from the indoor air inlet 15 by the second air blowing means 13, and the dehumidifying operation is generally performed in the summer when the humidity is high. Since it is used at the same time as the cooling operation, when it passes through the indoor heat exchanger 3 functioning as an evaporator, the temperature decreases to near the dew point temperature and becomes low-temperature, high-humidity air. The moisture of the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10, and the generated low-temperature dry air is discharged from the indoor outlet 16 to cool and dehumidify the room.
On the other hand, in the first air air passage 12 serving as a regeneration air passage, outdoor high-temperature air is sucked from the air supply duct 17. The sucked outdoor air has an air volume V detected by the air volume detector 30, an inlet air temperature T 1 detected by the first temperature detector 31, and an inlet air relative humidity φ 1 detected by the first humidity detector 32. Thereafter, the moisture adsorbing means 10 rotates, and the moisture adsorbed by the second air air passage 14 and transferred to the first air air passage 12 is regenerated by the high temperature outdoor air to become high temperature and high humidity air. The generated high-temperature and high-humidity air has the outlet air temperature T2 detected by the second temperature detector 33 and the outlet air relative humidity φ2 detected by the second humidity detector 34, and the exhaust duct 18 is detected by the first blower 11. The air is exhausted through the room.

At this time, the dehumidifying / humidifying amount is generally obtained by the following equation (1).
W = ρ × V × ΔX ―――――――――――――――― （１）
Here, W (kg / h) is the dehumidification / humidification amount, ρ (kg / m ³ ) is the air density, V (m ³ / h) is the air flow rate, and ΔX (kg / kg ′) is the inlet air absolute humidity X1. It is the difference of the outlet air absolute humidity X2.
The inlet air absolute humidity X1 can be obtained from the inlet air temperature T1 detected by the first temperature detecting means 31 and the inlet air relative humidity φ1 detected by the first humidity detecting means 32, and the outlet air absolute humidity X1. X2 can be obtained from the outlet air temperature T2 detected by the second temperature detecting means 33 and the outlet air relative humidity φ2 detected by the second humidity detecting means 34, so that it is detected by the air volume detecting means 30. Together with the air flow rate V, the dehumidifying / humidifying amount W can be calculated from the measured data. Since the amount of adsorbed water and the amount of regenerated water in the moisture adsorbing means 10 are equal in principle, the amount of adsorption (dehumidification amount) in the first air air passage 12 during the humidification operation and the first amount during the dehumidification operation according to equation (1). By obtaining the regeneration amount (humidification amount) in the air air passage 12, it is possible to estimate the humidification amount and dehumidification amount in the second air air passage 14, respectively.

  Further, when the dehumidification / humidification amount W estimated by the equation (1) is different from the target value, the air flow rate V is changed by controlling the first air blowing means 11 by an indoor unit control means (not shown), thereby achieving the target It is possible to obtain the same dehumidifying / humidifying amount W as the value. Generally, if the regeneration temperature is constant, the larger the air volume V, the greater the dehumidifying / humidifying amount W. Further, the dehumidifying / humidifying amount W can be adjusted by controlling the rotational speed of the moisture adsorbing means 10 by the rotation driving means 29. Generally, the optimum value of the rotational speed exists between 10 and 30 rph, and the dehumidifying / humidifying amount W decreases even if the rotational speed is larger or smaller than the optimum value.

  In FIG. 8, the air volume detection means 30 is installed on the upstream side of the moisture adsorption means 10 in the first air flow path 12, but may be installed on the downstream side. Further, it is assumed that the air volume detecting means 30 is provided with a sensor or the like and directly measuring the wind speed or the air volume, but the air volume is estimated based on the pressure, air volume, and input characteristics of the first air blowing means 11. Alternatively, the air volume may be estimated based on the temperature drop from the inlet air temperature T1 and the outlet air temperature T2. Further, in the second air air passage 14, the first temperature detecting means 31 is installed on the upstream side of the moisture adsorbing means 10, and the second temperature detecting means 33 is installed on the downstream side, and the pressure and air volume of the second air blowing means 13 are installed. The air volume V may be estimated based on the input characteristics, and the dehumidification / humidification amount W may be estimated from the air volume V, the inlet air temperature T1, and the outlet air temperature T2.

  In FIG. 8, the first humidity detection unit 32 and the second humidity detection unit 34 are installed on the upstream side and the downstream side of the moisture adsorption unit 10, respectively, but temperature changes before and after the moisture adsorption unit 10 are detected. If this is the case, an approximate change in relative humidity can be estimated. Therefore, when the detection accuracy of the dehumidification / humidification amount is not required, only one of the first humidity detection means 32 and the second humidity detection means 34 is installed. The number of parts may be reduced.

  In FIG. 8, the dehumidifying / humidifying unit 9 is installed on only one of the four side surfaces of the indoor unit 1, but may be installed on two, three, or the entire surface. By increasing the number of dehumidifying / humidifying units 9, it is possible to secure a larger amount of dehumidifying / humidifying, and it is also possible to selectively supply only a necessary amount of dehumidified air or humidified air in a necessary direction.

  In FIG. 8, the first air air passage 12 communicates with the outside through the air supply duct 17 and the exhaust duct 18, but either or both of the air supply duct 17 and the exhaust duct 18 are removed and the back of the ceiling The air may be supplied from the air or exhausted to the back of the ceiling. In this case, during humidification operation in winter, dry air is supplied to the back of the ceiling for dehumidification, so that the humidity is reduced and condensation on the back of the ceiling can be prevented.

  As described above, the dehumidifying / humidifying capacity suitable for the purpose is obtained by detecting the air volume and temperature / humidity changes before and after the moisture adsorbing means, estimating the dehumidifying / humidifying amount, and controlling the blower air volume and the rotation speed of the moisture adsorbing means. The air conditioner which can be obtained can be obtained.

Embodiment 5 FIG.
FIG. 9 is a schematic configuration diagram of an air conditioner equipped with a dehumidifying / humidifying function in Embodiment 5 of the present invention, and shows a schematic configuration of an indoor side device and a refrigerant circuit (heating circuit) of a heat pump cycle as viewed from the bottom surface. It is a figure. The description of the same parts as those in Embodiment 2 is omitted. A rotation driving means 29 is connected to the rotatable moisture adsorbing means 10 installed in the dehumidifying / humidifying unit 9, and the air volume detecting means 30 is located upstream of the moisture adsorbing means 10 in the second air air passage 14. The first temperature detecting means 31 and the first humidity detecting means 32 are installed, and the second temperature detecting means 33 and the second humidity detecting means 34 are installed on the downstream side.

  Next, an example of the operation will be described. First, at the time of humidification operation, the first air air passage 12 becomes an adsorption air passage, and the low-temperature and high-humidity outdoor air is sucked from the air supply duct 17, the water is adsorbed by the water adsorbing means 10, and the dry air is supplied to the first air The air is exhausted to the outside through the exhaust duct 18 by the blowing means 11. On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air is sucked from the indoor air inlet 15 by the indoor unit blower, and the humidification operation is generally required when the room is dried during heating in winter. Therefore, the temperature is raised by the indoor heat exchanger 3 functioning as a condenser to become heated air, which is taken into the dehumidifying / humidifying unit 9 through the first indoor unit connection duct 26 by the second blowing means 13. The heated air is detected by the air volume detecting means 30, the air temperature V 1 is detected by the first temperature detecting means 31, and the inlet air relative humidity φ 1 is detected by the first humidity detecting means 32. 10 rotates to regenerate the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side to become high-temperature and high-humidity air. The generated high-temperature, high-humidity air is detected by the second temperature detecting means 33 for the outlet air temperature T2, and the second humidity detecting means 34 for the outlet air relative humidity φ2, and then the second indoor unit connecting duct 27. It is conveyed to the indoor unit 1 through, discharged from the indoor outlet 16, and the room is heated and humidified.

  Next, in the dehumidifying operation, the second air air passage 14 becomes an adsorption air passage, and the indoor air is sucked from the indoor suction port 15 by the indoor unit blower. In general, the dehumidifying operation is performed in the cooling operation at high humidity in summer. Since it is used at the same time, it passes through the indoor heat exchanger 3 functioning as an evaporator, so that the temperature decreases to near the dew point temperature and becomes low-temperature high-humidity air. It is taken into the dehumidifying / humidifying unit 9 through the connection duct 26. This low-temperature high-humidity air is detected after the air volume V is detected by the air volume detector 30, the inlet air temperature T 1 is detected by the first temperature detector 31, and the inlet air relative humidity φ 1 is detected by the first humidity detector 32. Water is adsorbed by the adsorbing means 10 and becomes low-temperature dry air. The generated low-temperature dry air detects the outlet air temperature T2 by the second temperature detection means 33 and the outlet air relative humidity φ2 by the second humidity detection means 34, and then passes through the second indoor unit connection duct 27. It passes through the indoor unit 1 and is discharged from the indoor outlet 16 to cool and dehumidify the room. On the other hand, in the first air air passage 12 serving as the regeneration air passage, the moisture adsorbing means 10 rotates, and the water adsorbed by the second air air passage 14 and transferred to the first air air passage 12 side is supplied. The air is regenerated by the outdoor high-temperature air sucked from the air duct 17 and is exhausted outside the room through the exhaust duct 18 by the first blowing means 11 as high-temperature high-humidity air.

  At this time, the dehumidifying / humidifying amount W can be obtained from the measured data by the equation (1) as in the fourth embodiment, and during the humidifying operation, the regeneration amount (humidifying amount) in the second air air passage 14 and the dehumidifying operation are determined. In some cases, the amount of humidification and the amount of dehumidification can be estimated as the amount of adsorption (dehumidification amount) in the second air air passage 14, respectively. Further, when the dehumidification / humidification amount W estimated by the equation (1) is different from the target value, the dehumidification / humidification amount W equal to the target value is changed by controlling the second air blowing means 13 to change the air flow rate V. Can be obtained. Further, the dehumidifying / humidifying amount W can be adjusted by controlling the rotational speed of the moisture adsorbing means 10 by the rotation driving means 29.

  In FIG. 9, in the second air air passage 14, the air volume detection means 30 is installed on the upstream side of the moisture adsorption means 10, but it may be installed on the downstream side. Further, it is assumed that the air volume detecting means 30 is provided with a sensor or the like and directly measuring the air speed or the air volume, but the air volume is estimated based on the pressure, air volume, and input characteristics of the second air blowing means 13. Alternatively, the air volume may be estimated based on the temperature drop from the inlet air temperature T1 and the outlet air temperature T2.

  In FIG. 9, the first humidity detection unit 32 and the second humidity detection unit 34 are installed on the upstream side and the downstream side of the moisture adsorption unit 10, respectively, but temperature changes before and after the moisture adsorption unit 10 are detected. If this is the case, an approximate change in relative humidity can be estimated. Therefore, when the detection accuracy of the dehumidification / humidification amount is not required, only one of the first humidity detection means 32 and the second humidity detection means 34 is installed. The number of parts may be reduced. Further, the air volume detecting means 30, the first temperature detecting means 31, the first humidity detecting means 32, the second temperature detecting means 33, and the second humidity detecting means 34 are installed in the first air air passage 12, and are humidified. By calculating the amount of adsorption (dehumidification amount) in the first air air passage 12 during operation and the amount of regeneration (humidification amount) in the first air air passage 12 during dehumidification operation, the humidification amount and dehumidification amount are estimated, The first air blowing means 11 may be controlled to adjust the dehumidification / humidification amount.

  In FIG. 9, two dehumidifying / humidifying units 9 are connected using the two side surfaces of the indoor unit 1 facing each other. However, the dehumidifying / humidifying unit 9 may be added using the remaining two side surfaces. . By increasing the number of dehumidifying / humidifying units 9, it is possible to secure a larger amount of dehumidifying / humidifying, and it is also possible to selectively supply only a necessary amount of dehumidified air or humidified air in a necessary direction.

  In FIG. 9, the first air air passage 12 communicates with the outside through the air supply duct 17 and the exhaust duct 18, but either or both of the air supply duct 17 and the exhaust duct 18 are removed, The air may be supplied from the air or exhausted to the back of the ceiling. In this case, during humidification operation in winter, dry air is supplied to the back of the ceiling for dehumidification, so that the humidity is reduced and condensation on the back of the ceiling can be prevented.

  As described above, the dehumidifying / humidifying capacity suitable for the purpose is obtained by detecting the air volume and temperature / humidity changes before and after the moisture adsorbing means, estimating the dehumidifying / humidifying amount, and controlling the blower air volume and the rotation speed of the moisture adsorbing means. The air conditioner which can be obtained can be obtained.

Embodiment 6 FIG.
FIG. 10 is a conceptual diagram of isothermal adsorption lines of various adsorbents carried on the moisture adsorption means in Embodiment 6 of the present invention, 35 is a general zeolite, and 36 is 1.5 to 2.5 nm ( The first adsorbent is a porous silicon material provided with a large number of pores of about nanometers), and 37 is the isothermal of a second adsorbent which is a zeolite-based material provided with a large number of pores of about 0.7 nm. An adsorption line is shown. In FIG. 10, the horizontal axis represents the relative humidity of the target air, and the vertical axis represents the equilibrium adsorption amount of moisture. In FIG. 10, the change in the equilibrium adsorption amount of water with respect to the relative humidity in the range where the relative humidity of the air is equal to or lower than the _0th relative humidity 38 (Φ ₀ ), as indicated by a general isothermal adsorption line 35 of zeolite. The slope, which is the rate, is greater than the slope in the range above the 0th relative humidity 38, and the 0th relative humidity 38 is typically less than 10%. Further, as shown in the isothermal adsorption line 36 of the first adsorbent, the first adsorbent used in the sixth embodiment has a first relative humidity in which the relative humidity of air is greater than the zero relative humidity 38. The slope that is the rate of change of the equilibrium adsorption amount of moisture relative to the relative humidity in the range of the humidity 39 (Φ ₁ ) to the second relative humidity 40 (Φ ₂ ) is less than the first relative humidity 39 or the second relative humidity 40. Greater than the slope in the range exceeding.

The first relative humidity 39 and the second relative humidity 40 are increased or decreased in the range of 30% to 60% by increasing or decreasing the pore diameter of the porous silicon material that is the first adsorbent. At this time, the equilibrium adsorption amount 43 (q ₁ ) at the first relative humidity is smaller than the equilibrium adsorption amount 42 (q ₀ ) at the _zero relative humidity, and the equilibrium adsorption amount at the second relative humidity. 44 (q ₂ ) is larger than the equilibrium adsorption amount 42 at the 0th relative humidity. Similarly, as shown in the isothermal adsorption line 37 of the second adsorbent, the second adsorbent used in the present embodiment has a relative humidity of air equal to or less than the _third relative humidity 41 (Φ ₃ ). The slope, which is the rate of change of the equilibrium adsorption amount of water with respect to the relative humidity in the range, is greater than the slope in the range exceeding the third relative humidity 41. At this time, the third relative humidity 41 is larger than the zero relative humidity 38 and smaller than the first relative humidity 39, and the equilibrium adsorption amount 45 (q ₃ ) at the third relative humidity is It is greater than the equilibrium adsorption amount 42 at 0 relative humidity.

FIG. 11 is a conceptual diagram of an isothermal adsorption line of an adsorbent obtained by mixing silica gel and zeolite supported by a moisture adsorbing means in the same manner as in FIG. 47 shows the isothermal adsorption line of the third adsorbent synthesized by mixing 100% zeolite, 48 mixing zeolite and silica gel, and increasing the blending ratio of zeolite. In FIG. 11, the horizontal axis represents the relative humidity of the target air, and the vertical axis represents the equilibrium adsorption amount of moisture. The isothermal adsorption line 46 of silica gel 100% and the isothermal adsorption line 47 of zeolite 100% overlap with the _fourth relative humidity 49 (Φ ₄ ), which is generally about 60%, and the isothermal adsorption line 48 of the third adsorbent. As shown in FIG. 4, the equilibrium adsorption amount of the third adsorbent is more than 100% of silica gel in the relative humidity range lower than the fourth relative humidity 49, and in the relative humidity range higher than the fourth relative humidity 49. More than 100% zeolite.

FIG. 12 is a schematic diagram showing the results of analysis of the adsorption energy distribution of each of the terminal cation species of the zeolite of the present invention. FIG. 12 (a) shows the terminal cation Na (sodium), and FIG. 12 (b) shows the terminal cation K ( (Potassium) distribution.
Chaotin is a cation ion-bonded with the molecular structure of zeolite. The adsorption characteristics change by ion exchange of this chaotic with various substances, so the terminal cations are exchanged according to the purpose and the adsorption characteristics. Can be improved.
In FIG. 12, the horizontal axis represents the adsorption energy, and the vertical axis represents the integrated value of the amount of adsorbed water. The amount of water adsorbed by each adsorbing energy is shown integrated from the smaller adsorbing energy. Each line in the figure shows that 58 is small in SiO ₂ / Al ₂ O ₃ (≈2.5), 59 is in SiO ₂ / Al ₂ O ₃ (≈3.5), and 60 is SiO ₂ / Al ₂ O _3. The distribution is large (≈5.0), and a smaller SiO ₂ / Al ₂ O ₃ indicates that more moisture is adsorbed with lower adsorption energy.

  Next, an example of the operation will be described. Description will be made assuming that an adsorbent having an isothermal adsorption line as shown in FIG. 10 is carried on the moisture adsorption means 10 of FIG. First, since the humidification operation is generally required when the room is dried during heating in winter, the outdoor air has a low temperature (7 ° C./87% RH under the heating standard condition). During the heating and humidifying operation, the first air air passage 12 becomes an adsorption air passage, sucks low-temperature and high-humidity outdoor air from the air supply duct 17, adsorbs moisture to the moisture adsorbing means 10, and supplies dry air as the first air blower. The air is exhausted outside by the means 11 through the exhaust duct 18. On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air that is dried by the second air blowing means 13 is sucked from the indoor suction port 15 and functions as a condenser for heating operation. 3 is heated to become heated air. The moisture adsorbing means 10 rotates, the moisture adsorbed by the first air air passage 12 and transferred to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is discharged from the indoor outlet 16 and the room is heated and humidified.

At this time, when the first adsorbent having the isothermal adsorption line 36 is carried on the moisture adsorbing means 10, the relative humidity of the inlet air is in the range from 87% to Φ ₂ in the first air air passage 12 which is the adsorption air passage. , The adsorption amount is increased up to the equilibrium adsorption amount q _2, so that the adsorption amount is greatly increased as compared with a general zeolite adsorbing only the equilibrium adsorption amount q ₀ . In the second air air passage 14, which is one of the regeneration air passages, sufficient regeneration can be achieved if the relative humidity of the regeneration inlet air is made Φ ₁ or less. Therefore, the first adsorbent is adjusted so that Φ ₁ is about 40%. By adjusting the pore size of the porous silicon material, the adsorption amount difference of q ₂ −q ₁ is large even if low temperature regeneration, that is, indoor air heated to 20 ° C. by heating is used as it is as regeneration air. A corresponding amount of humidification can be obtained. Similarly, when the second adsorbent having the isothermal adsorption line 37 is carried on the moisture adsorbing means 10, in the first air air passage 12 which is an adsorption air passage, a wide range from the relative humidity of the inlet air from 87% to Φ ₃ is obtained. , The adsorption amount is increased up to the equilibrium adsorption amount q _3, so that the adsorption amount is greatly increased as compared with a general zeolite adsorbing only the equilibrium adsorption amount q ₀ . In the second air air passage 14 which is one of the regeneration air passages, the regeneration air can be sufficiently regenerated if the relative humidity of the regeneration inlet air is made Φ ₃ or less, so a general zeolite whose regeneration temperature must be raised to Φ ₀ or less. As compared with the above, regeneration is possible at a low temperature, and the humidification amount can be increased according to the difference in adsorption amount of q ₃ -q ₀ .

  Next, since the dehumidifying operation is generally used at the same time as the cooling operation at high humidity in summer, the outdoor air becomes a high temperature (35 ° C./40% RH in the cooling standard condition). At the time of the cooling and dehumidifying operation, the second air air passage 14 becomes an adsorption air passage, the indoor air is sucked in by the second air blowing means 13 from the indoor suction port 15, and the indoor heat functioning as an evaporator for the cooling operation. By passing through the exchanger 3, the temperature is lowered to near the dew point temperature and becomes low-temperature and high-humidity air. The moisture of the low-temperature and high-humidity air is adsorbed by the moisture adsorbing means 10, and the generated dry air is discharged from the indoor outlet 16 to cool and dehumidify the room. On the other hand, in the first air air passage 12 serving as the regeneration air passage, the moisture adsorbing means 10 rotates, and the water adsorbed by the second air air passage 14 and transferred to the first air air passage 12 side is supplied. The air is regenerated by the outdoor high-temperature air sucked from the air duct 17 and is exhausted outside the room through the exhaust duct 18 by the first blowing means 11 as high-temperature high-humidity air.

At this time, when the first adsorbent having the isothermal adsorption line 36 is carried on the moisture adsorption means 10, the dew point temperature is caused by the evaporator (indoor heat exchanger 3) in the second air air passage 14 that is the adsorption air passage. Since it is cooled to the vicinity and adsorbs up to the equilibrium adsorption amount q ₂ in the range from about 100% relative humidity of the inlet air to Φ ₂ , the general amount of equilibrium adsorption hardly changes from q ₀ even in the high humidity range. Compared to zeolite, the amount of adsorption is greatly increased. In the first air air passage 12, which is one of the regeneration air passages, sufficient regeneration can be achieved if the relative humidity of the regeneration inlet air is made Φ ₁ or less. Therefore, the first adsorbent is adjusted so that Φ ₁ is about 40%. By adjusting the pore size of the porous silicon material, it is possible to obtain a dehumidification amount corresponding to a large adsorption amount difference of q ₂ −q ₁ even if the outdoor air having a relatively high humidity is used as the regeneration air as it is. Can do. Similarly, when carrying a second adsorbent with adsorption isotherm 37 to moisture adsorption means 10, the second is a suction air passage in the air air path 14, from near 100% relative humidity of the inlet air of [Phi ₃ Since the adsorption up to the equilibrium adsorption amount q ₃ is carried out in a wide range, the adsorption amount is greatly increased as compared with a general zeolite in which the equilibrium adsorption amount hardly changes from q ₀ even in the high humidity range. In the first air air passage 12, which is one of the regeneration air passages, sufficient regeneration can be achieved if the relative humidity of the regeneration inlet air is made Φ ₃ or less. Therefore, a general zeolite whose regeneration temperature must be raised to Φ ₀ or less. Compared to the above, regeneration is possible at a low temperature, and the dehumidification amount can be increased according to the difference in adsorption amount between q ₀ and q ₃ .

When the moisture adsorbing means 10 is loaded with the third adsorbent having the isothermal adsorption line 48, the adsorption characteristics of both silica gel and zeolite are utilized. As a general property of the adsorbent, silica gel is suitable for dehumidification because it has a large amount of adsorption at high humidity as shown by the isothermal adsorption line 46, and zeolite is suitable for a wide humidity range as shown by the isothermal adsorption line 47. Since it has an almost constant adsorption amount, it is suitable for humidification applications and has a fast adsorption / dehumidification reaction rate. Therefore, in both humidification and dehumidification operations, in the adsorption air passage, in the range of Φ ₄ from the relative humidity of the inlet air, the adsorption amount of silica gel is larger than that of zeolite, and the relative humidity range is lower than Φ _4. However, the adsorption amount of zeolite does not decrease as much as silica gel, and it is possible to cope with a wider humidity range. In addition, in the regeneration air channel, the adsorption amount of silica gel is smaller than that of zeolite, so that regeneration at a lower temperature than zeolite is possible. Here, it is desirable to change the blending ratio of zeolite and silica gel according to the application, to increase the blending ratio of zeolite for humidification applications, and to increase the blending ratio of silica gel for dehumidification applications. Increases the adsorption and dehumidification speed by increasing the mixing ratio of zeolite, for example, the mixing ratio of zeolite and silica gel to about 8: 2 or 7: 3, and higher dehumidifying / humidifying performance. Can be secured.

Further, the adsorption energy distribution in FIG. 12 is obtained by integrating the amount of adsorption from the smaller adsorption energy on the left side of the figure, but when the terminal cation in FIG. 12A is Na, moisture is adsorbed. While the adsorption energy covers a wide range up to 40 kcal / mol or more, when the terminal cation in FIG. 12B is K, the adsorption energy is only in the range of 20 kcal / mol or less. This is thought to be due to the position where water molecules adsorb to the zeolite. That is, in the case of the K cation, it is only adsorption to the six-membered ring of oxygen having a small adsorption energy called pore feeling, but in the case of the Na cation, water molecules adsorbed to the cation species electrostatic field having a large adsorption energy are also present. This is because it exists. Here, the adsorption energy that can be desorbed by the heater with a heating capacity of 1 kW to secure a dehumidifying / humidifying amount is estimated to be, for example, about 13 kcal / mol at a dehumidifying / humidifying amount of 1 L / h, and is adsorbed with more energy. Water will not be desorbed with a 1 kW heater. Therefore, in the adsorption energy distribution of Na cations in FIG. 12 (a), moisture adsorbed with an energy of 20 kcal / mol or more does not contribute to dehumidification, whereas in the case of K cations in (b) Almost all of the water contributes to dehumidification, and the amount is about twice that of the Na cation in any SiO ₂ / Al ₂ O ₃ . In particular, Y-type zeolite having a large amount of adsorption at 10 to 20 kcal / mol and having a SiO ₂ / Al ₂ O ₃ content of 2.5 to 3.0 is desirable.

  Furthermore, although the amount of desorbed water with respect to a constant heating amount of 1 kW is described here as an example, the amount of heating required to desorb the same amount of water is reduced by using zeolite of K cation with low adsorption energy. In other words, there is also an energy saving effect that enables low temperature regeneration. Here, when producing the K cation zeolite as described above, it is common to use a relatively inexpensive Na cation zeolite and exchange Na ions for K ions. At this time, if the K ions are increased as much as possible, for example, if K ions: Na ions are set to 90%: 10%, the adsorption energy decreases as described above, so that the moisture desorption amount increases with respect to a certain heating amount, or is constant. There is an effect such as reduction of the heating capacity necessary for the amount of water desorption. Moreover, if the exchange amount to K ion is reduced, for example, if K ion: Na ion is about 50%: 50%, the effect of lowering the adsorption energy can be expected while reducing the cost for ion exchange.

  As described above, as an adsorbent carried on the moisture adsorption means, a porous silicon material having a large number of pores of about 1.5 to 2.5 nm, or a zeolite having a large number of pores of about 0.7 nm By using a system material, the amount of adsorption is greatly increased compared to the use of general zeolite, and it is possible to regenerate without a heater, so energy saving is high and high-performance dehumidifying / humidifying operation is possible. An air conditioner can be obtained. In addition, it is possible to handle a wide humidity range by mixing materials with zeolite and silica gel and increasing the blending ratio of zeolite, and the rate of adsorption and dehumidification is improved, resulting in higher dehumidifying / humidifying capacity. In addition, by making the terminal cation of zeolite K cation with low adsorption energy, the amount of dehumidification / humidification for a certain amount of heating increases or the heating capacity necessary for a certain amount of water desorption is increased. Reduction, that is, low temperature regeneration is possible, and an air conditioner with high dehumidifying / humidifying efficiency can be obtained.

Embodiment 7 FIG.
FIG. 13 is a schematic installation diagram of the moisture adsorbing means according to the seventh embodiment of the present invention, 50 is a moisture adsorbing means for high-humidity air, and 51 is a moisture adsorbing means for low-humidity air. It is divided into an adsorption means adsorption area 50a, a moisture adsorption means regeneration area 50b for high humidity air, a moisture adsorption means adsorption area 51a for low humidity air, and a moisture adsorption means regeneration area 51b for low humidity air. As the adsorbent carried on the moisture adsorbing means 50 for high-humidity air, for example, as the adsorbent carried on the moisture adsorbing means 51 for low humidity air shown in FIG. 10 includes a second adsorbent indicated by an isothermal adsorption line 37. FIG. 14 is a conceptual diagram of the change in air relative humidity at this time, 52 in FIG. 14 (a) shows the change in air relative humidity during adsorption, and 53 in FIG. 14 (b) shows the change in air relative humidity during regeneration. Yes. _{Reference numeral} 54 denotes an air relative humidity (Φ _adin ) at the time of adsorption, 55 denotes an air relative humidity (Φ _dein ) at the time of regeneration, and Φ ₁ , Φ ₂ and Φ ₃ are the first relative humidity in FIG. 39, the second relative humidity 40, and the third relative humidity 41.

  Next, an example of the operation will be described. When viewed from the upstream side of the first air air passage 12, the moisture adsorbing means 50 for high humidity air and the moisture adsorbing means 51 for low humidity air as shown in FIG. Description will be made assuming that the moisture adsorbing means 50 for wet air is installed so as to come to the front. At this time, the first air blowing means 11 and the second air blowing means 13 can be rotated forward and backward, the air rotates forward during the heating operation, the air flows in the direction shown in FIG. 2, the air rotates backward during the cooling operation, and the air is It is assumed that it flows in the direction opposite to FIG. First, since the humidification operation is generally required when the room is dried during heating in winter, the outdoor air has a low temperature (7 ° C./87% RH under the heating standard condition). During the heating and humidification operation, the first air air passage 12 becomes an adsorption air passage, and the low-temperature and high-humidity outdoor air sucked from the air supply duct 17 is the moisture adsorbing means adsorption area 50a for high-humidity air and moisture for low-humidity air. Moisture is adsorbed by passing in the order of the adsorbing means adsorbing area 51a, and is exhausted to the outside through the exhaust duct 18 by the first air blowing means 11 that is rotating forward as dry air. On the other hand, in the second air air passage 14 serving as a regeneration air passage, indoor air is sucked from the indoor air inlet 15 by the indoor unit blower, and the temperature is raised by the indoor heat exchanger 3 functioning as a condenser for heating operation. It becomes heated air and is taken into the dehumidifying / humidifying unit 9 through the first indoor unit connection duct 26 by the second air blowing means 13 rotating in the forward direction, and the moisture adsorbing means regeneration area 51b for the low humidity air, the moisture for the high humidity air Passes in the order of the suction means regeneration area 50b. At this time, the moisture adsorbing means for high humidity air 50 and the moisture adsorbing means for low humidity air 51 rotate, and in the first air air passage 12, the moisture adsorbing means adsorption area for high humidity air 50a, the moisture adsorption means for low humidity air are provided. Moisture that has been adsorbed in the adsorption region 51a and moved to the second air air passage 14 side is regenerated by the heated air and becomes high-temperature and high-humidity air. The generated high-temperature and high-humidity air is transported to the indoor unit 1 through the second indoor unit connection duct 27 and discharged from the indoor outlet 16 so that the room is heated and humidified.

  Next, since the dehumidifying operation is generally used at the same time as the cooling operation at high humidity in summer, the outdoor air becomes a high temperature (35 ° C./40% RH in the cooling standard condition). During the cooling and dehumidifying operation, the second air air passage 14 serves as an adsorption air passage, the indoor air is sucked from the indoor suction port 15 by the indoor unit blower, and the indoor heat exchanger 3 functioning as an evaporator for the cooling operation. , The temperature is lowered to near the dew point temperature and becomes low-temperature and high-humidity air, and is taken into the dehumidifying / humidifying unit 9 through the second indoor unit connecting duct 27 by the second air blowing means 13 rotating in the reverse direction. . The low-temperature high-humidity air passes through the moisture-absorbing means adsorption area 50a for high-humidity air and the moisture-absorbing means adsorption area 51a for low-humidity air in this order to adsorb moisture, and becomes dry air. 26 is conveyed to the indoor unit 1 and discharged from the indoor outlet 16 so that the room is dehumidified. On the other hand, in the first air air passage 12 serving as a regeneration air passage, the outdoor high-temperature air sucked from the exhaust duct 18 by the reversely rotating first air blowing means 11 is converted into the moisture adsorption means regeneration region 51b for the low-humidity air. It passes in the order of the moisture adsorption means regeneration region 50b for high-humidity air. At this time, the moisture adsorbing means for high humidity air 50 and the moisture adsorbing means for low humidity air 51 rotate, and in the second air air passage 14, the moisture adsorbing means adsorption area 50a for high humidity air and the moisture adsorption means for low humidity air are provided. Moisture that has been adsorbed in the adsorption region 51a and has moved to the first air air passage 12 side is regenerated by high-temperature air to become high-temperature and high-humidity air. The generated high-temperature and high-humidity air is exhausted to the outside through the air supply duct 17 by the first air blowing means 11 rotating in the reverse direction.

At this time, in both the humidification and dehumidification operations, the adsorption air passage is carried by the moisture adsorption means 50 for high-humidity air as shown by the air relative humidity change 52 during adsorption in FIG. In the range of relative humidity Φ _adin to Φ ₂ where the equilibrium adsorption amount of the first adsorbent is large, a large amount of water is adsorbed, so the relative humidity decreases rapidly in the thickness direction. Almost no change when Φ ₂ or less. On the other hand, the equilibrium adsorption amount of the second adsorbent carried by the moisture adsorption means 51 for low-humidity air does not decrease to Φ ₃ which is low humidity, and is within the range of relative humidity Φ ₁ to Φ ₃ . Since there are more adsorbents than one adsorbent, the moisture of low humidity air having a relative humidity of Φ _{1 that} has flowed out of the moisture adsorption means adsorption area 50a for high humidity air has a relative humidity of Φ ₃ in the moisture adsorption means adsorption area 51a for low humidity air. Since it is adsorbed to a certain extent, the amount of adsorption can be increased by q ₃ −q _{1 as} compared with the case where only the moisture adsorbing means 50 for high humidity air is used.

In one regeneration air passage, as shown in the air relative humidity change 53 during regeneration in FIG. 14B, the indoor air is heated by the indoor heat exchanger 3, so the relative humidity Φ _dein is greater than Φ ₃ . At the time of the humidifying operation that becomes smaller, a large amount of moisture is regenerated in the range of relative humidity Φ _dein to Φ ₃ where the equilibrium adsorption amount of the second adsorbent carried on the moisture adsorbing means 51 for low-humidity air is small. Humidity increases rapidly in the thickness direction, but hardly changes when the relative humidity is Φ ₃ or more. On the other hand, the equilibrium adsorption amount of the first adsorbent carried on the moisture adsorption means 50 for high-humidity air does not increase to Φ ₁ which is relatively high humidity, and the relative humidity Φ ₃ to Φ ₁ Since the range is much smaller than the second adsorbent, the moisture of the low humidity air having a relative humidity Φ _{3 that} has flowed out of the low humidity air moisture adsorbing means regeneration region 51b is relative to the high humidity air moisture adsorbing means regeneration region 50b. Since the humidity is regenerated to the extent of Φ ₂ , the amount of humidification corresponding to the difference in adsorption amount of q ₂ −q ₃ can be increased as compared with the case where only the moisture adsorption means 51 for low humidity air is used. it can. Further, during the dehumidifying operation for regenerating with outdoor air, when the outdoor air has a high humidity and the relative humidity Φ _dein is larger than Φ ₃ , it is hardly regenerated by the moisture adsorbing means 51 for low humidity air carrying the second adsorbent. By increasing the pore diameter of the porous silicon material, which is the first adsorbent, so that Φ ₁ and Φ ₂ are as large as possible, the overall dehumidification amount corresponds to the difference in adsorption amount of q ₂ -q _dein Can be increased. Accordingly, when both the dehumidifying and humidifying operations are considered, even if Φ ₁ and Φ ₂ increase in the adsorption air passage and the adsorption amount of the first adsorbent in the moisture adsorbing means for high humidity air 50 decreases, the low humidity Since the second adsorbent in the moisture adsorbing means 51 for air can compensate for low-humidity air of about Φ _3, it is desirable to make the pore diameter of the porous silicon material as the first adsorbent as large as possible. For example, by setting the pore diameter to 2.5 nm, Φ ₁ is 45% and Φ ₂ is 60%. At the time of regeneration shown in FIG. 14B, regeneration in the moisture adsorbing means 50 for high humidity air is relative humidity. Since it becomes possible to 60%, not only the amount of dehumidification / humidification is greatly increased, but also low temperature regeneration is possible.

In FIG. 14, the adsorbent carried on the moisture adsorbing means 51 for low-humidity air is described as the second adsorbent. However, the isothermal adsorption line 48 shown in FIG. You may use the 3rd adsorption agent which is the zeolite made into K (potassium) cation with small energy. In this case, since the amount of adsorption up to the relative humidity Φ _4, which is relatively high humidity, is small, if Φ _dein is smaller than Φ ₄ during the regeneration shown in FIG. 14B, the regeneration is performed in the moisture adsorption means 51 for low humidity air. In addition, the amount of regeneration for a certain amount of heating can be increased, or the heating capacity necessary for a certain amount of moisture desorption can be reduced, so that the dehumidifying / humidifying efficiency can be improved.

  In FIG. 13, the moisture adsorbing means 50 for high humidity air and the moisture adsorbing means 51 for low humidity air are separated and installed to some extent, but they may be installed in contact with each other, Separate adsorbents may be supported on the front and back. When installed in contact with each other, it is necessary to align the cell positions of both honeycomb base materials so as not to cause pressure loss.

  As described above, as the moisture adsorption means, the moisture adsorption means for high humidity carrying the first adsorbent in which the rate of change of the equilibrium adsorption amount with respect to the relative humidity changes rapidly in a relatively high humidity range, and the low humidity A low-humidity moisture adsorbing means carrying a second adsorbent that changes abruptly in series, and supplying adsorbed air from the high-humidity moisture adsorbing means side and regeneration air from the low-humidity moisture adsorbing means side Therefore, adsorption and regeneration are performed in the relative humidity range suitable for each adsorbent, and the amount of adsorption is mutually compensated. Since it can be regenerated with humid air, a sufficient dehumidifying / humidifying amount can be ensured without a heater, and an air conditioner with high energy saving and dehumidifying / humidifying efficiency can be obtained.

It is a schematic block diagram of the air conditioner carrying a dehumidification / humidification function in Embodiment 1 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which installed the auxiliary heater in Embodiment 1 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which installed the regeneration auxiliary | assistant heat exchanger in Embodiment 1 of this invention. It is a schematic block diagram of the air conditioner carrying a dehumidification / humidification function in Embodiment 2 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which installed the auxiliary heater in Embodiment 2 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which installed the regeneration auxiliary heat exchanger in Embodiment 2 of this invention. It is a schematic block diagram of the air conditioner carrying a dehumidification / humidification function in Embodiment 3 of this invention. It is a schematic block diagram of the air conditioner carrying a dehumidification / humidification function in Embodiment 4 of this invention. It is a schematic block diagram of the air conditioner carrying a dehumidification / humidification function in Embodiment 5 of this invention. It is a conceptual diagram of the isothermal adsorption line of the various adsorbents (1st adsorbent, 2nd adsorbent) carry | supported by the water | moisture-content adsorption | suction means in Embodiment 6 of this invention. It is a conceptual diagram of the isothermal adsorption line of the adsorbent which mixed the silica gel and zeolite supported by the water | moisture-content adsorption | suction means in Embodiment 6 of this invention, and changed those compounding ratios. It is an analysis result schematic diagram of adsorption energy distribution by each terminal cation kind of zeolite in Embodiment 6 of this invention. It is a schematic installation figure of the water | moisture-content adsorption | suction means in Embodiment 7 of this invention. It is a conceptual diagram of the air relative humidity change in the water | moisture-content adsorption | suction means in Embodiment 7 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which added the receiver to the refrigerant circuit in Embodiment 1 of this invention. It is a schematic block diagram of the air conditioner carrying the dehumidification / humidification function which added the accumulator to the refrigerant circuit in Embodiment 1 of this invention.

Explanation of symbols

1 indoor unit, 2 outdoor unit, 3 indoor unit heat exchanger, 4 compressor, 5 outdoor unit heat exchanger, 6 expansion valve, 7 four-way valve, 8 ceiling surface, 9 dehumidifying / humidifying unit, 10 moisture adsorbing means, 11th 1 air blowing means, 12 first air air passage, 13 second air air blowing means, 14 second air air passage, 15 indoor air inlet, 16 indoor air outlet, 17 air supply duct, 18 exhaust air duct, 19 first Auxiliary heater, 20 second auxiliary heater, 21 first regeneration auxiliary heat exchanger, 22 second regeneration auxiliary heat exchanger, 23 switching valve, 24 check valve, 25 partition wall, 26 first Indoor unit connection duct, 27 Second indoor unit connection duct, 28 Auxiliary heat exchanger, 29 Rotation drive means, 30 Air volume detection means, 31 First temperature detection means, 32 First humidity detection means, 33 Second Temperature detection means, 34 Second humidity detection means, 35 General zeolite Temperature adsorption line, 36 Isothermal adsorption line of first adsorbent, 37 Isothermal adsorption line of second adsorbent, 38 0th relative humidity, 39 1st relative humidity, 40 2nd relative humidity, 41 3rd 42, equilibrium adsorption amount at 0th relative humidity, 43 equilibrium adsorption amount at first relative humidity, 44 equilibrium adsorption amount at second relative humidity, 45 equilibrium adsorption amount at third relative humidity, 46 silica gel 100% isotherm adsorption line, 47 zeolite 100% isotherm adsorption line, 48 third isotherm adsorption line, 49 fourth relative humidity, 50 moisture adsorption means for high humidity air (50a adsorption region, 50b regeneration region) ), 51 moisture adsorption means for low humidity air (51a adsorption area, 51b regeneration area), 52 air relative humidity change during adsorption, 53 air relative humidity change during regeneration, 54 inlet air relative humidity during adsorption, 55 Inlet air relative humidity, 56 receivers, 57 accumulator, 58 SiO ₂ / Al ₂ O ₃ small amount of adsorbed moisture integral value, 59 SiO ₂ / Al ₂ O ₃ integral amount of adsorbed moisture amount, 60 SiO ₂ / Integrated value of moisture adsorbed when Al ₂ O _{3 is} large.

Claims (22)

An outdoor unit having a compressor, a four-way valve, an outdoor unit heat exchanger, and an expansion valve;
An indoor unit having an indoor unit heat exchanger,
In the air conditioner provided with a heat pump cycle capable of switching between cooling and heating by connecting the compressor, the four-way valve, the outdoor unit heat exchanger, the expansion valve, and the indoor unit heat exchanger sequentially with piping,
A first air passage that has a first air blowing means, takes in outdoor air by the first air blowing means, and discharges the air outside the room;
A second air passage that has second air blowing means, takes indoor air through the second air blowing means, and discharges the air into the room through the indoor unit heat exchanger;
The first air passage and the second air passage are arranged to straddle, the region facing the first air passage and the region facing the second air passage move, and one of the air passages Moisture adsorption means for adsorbing moisture in the air and regenerating the adsorbed moisture with the air of the other air path;
With
In the second air path, the indoor unit heat exchanger is disposed upstream of the moisture adsorption means,
When the indoor unit heat exchanger functions as a condenser to heat the air in the second air passage,
The moisture adsorbed by the moisture adsorbing means in the first air path is regenerated in the second air path by the heated air in the second air path,
When the indoor unit heat exchanger functions as an evaporator to cool the air in the second air passage,
The moisture adsorbed by the moisture adsorption means in the second air path is regenerated in the first air path by the outdoor air taken in through the first air path ,
As the moisture adsorption means, a first moisture adsorption means and a second moisture adsorption means carrying different adsorbents are arranged in series,
An air conditioner characterized in that the first air blowing means and the second air blowing means are capable of rotating in forward and reverse directions according to an air conditioning operation, and the rotation direction is switched during the heating operation according to the air conditioning operation.   The air conditioner according to claim 1, wherein the indoor heat exchanger operates as a condenser to heat air in the second air passage during indoor humidification operation. An auxiliary heater provided on the upstream side of the moisture adsorbing means in the second air path;
The air conditioner according to claim 1 or 2, wherein during the indoor humidification operation, the auxiliary heater is operated to heat the air in the second air passage. A regenerative auxiliary heater provided on the upstream side of the moisture adsorbing means in the second air passage and connected via a bypass pipe having an outlet and an on-off valve of the compressor;
3. The air in the second air passage is heated during indoor humidification operation by controlling the on-off valve to operate the regeneration auxiliary heater as a condenser. Air conditioner.   2. The air conditioner according to claim 1, wherein during the indoor dehumidifying operation, the indoor heat exchanger operates as an evaporator to cool the air in the second air passage to near the dew point temperature. An auxiliary heater provided on the upstream side of the moisture adsorption means of the first air path,
The air conditioner according to claim 1 or 5, wherein, during an indoor dehumidifying operation, the auxiliary heater is operated to heat the air in the first air passage. A regenerative auxiliary heater provided on the upstream side of the moisture adsorbing means of the first air passage and connected via an outlet of the compressor and a bypass pipe having an on-off valve;
6. The indoor dehumidifying operation controls the on-off valve to operate the regeneration auxiliary heater as a condenser to heat the air in the first air passage. Air conditioner. A regenerative auxiliary heater provided on the upstream side of the moisture adsorbing means of the first air passage, and connected in series with the outdoor unit heat exchanger;
6. The air conditioner according to claim 1, wherein during the indoor dehumidifying operation, the regeneration auxiliary heater is operated as a condenser to heat the air in the first air passage. A first auxiliary heater provided on the upstream side of the moisture adsorbing means in the first air path;
A second auxiliary heater provided on the upstream side of the moisture adsorption means of the second air path,
During the dehumidifying operation, the first auxiliary heater is operated to heat the air in the first air path,
6. The air conditioner according to claim 1, wherein the air in the second air passage is heated by operating the second auxiliary heater during a humidifying operation. . A first regeneration auxiliary heater provided on the upstream side of the moisture adsorbing means in the first air passage and connected to the outlet of the compressor via a first bypass pipe having a first on-off valve; ,
A second regeneration auxiliary heater provided on the upstream side of the moisture adsorbing means in the second air passage and connected to the outlet of the compressor via a second bypass pipe having a second on-off valve; With
During the dehumidifying operation, the first on-off valve and the second on-off valve are controlled to operate the first regeneration auxiliary heater as a condenser to heat the air in the first air path,
In the humidification operation, the first on-off valve and the second on-off valve are controlled to operate the second regeneration auxiliary heater as a condenser to heat the air in the second air passage. The air conditioner according to claim 1, claim 2, or claim 5. A dehumidifying / humidifying unit for storing the moisture adsorbing means;
The air conditioner according to any one of claims 1 to 10, wherein the first air blowing unit and the second air blowing unit are housed in the dehumidifying / humidifying unit. First temperature detection means provided on the upstream side of the moisture adsorption means in the first air path;
Second temperature detection means provided on the downstream side of the moisture adsorption means in the first air path;
Humidity detection means provided on one or both of the upstream side and the downstream side of the moisture adsorption means of the first air path;
A dehumidifying / humidifying amount calculating unit that estimates a dehumidifying / humidifying amount by the moisture adsorbing unit based on output values of the first temperature detecting unit, the second temperature detecting unit, and the humidity detecting unit; The air conditioner according to claim 1. First temperature detection means provided on the upstream side of the moisture adsorption means in the second air path;
Second temperature detection means provided on the downstream side of the moisture adsorption means in the second air path;
Humidity detection means provided on either or both of the upstream side and the downstream side of the moisture adsorption means of the second air path;
A dehumidifying / humidifying amount calculating unit that estimates a dehumidifying / humidifying amount by the moisture adsorbing unit based on output values of the first temperature detecting unit, the second temperature detecting unit, and the humidity detecting unit; The air conditioner according to claim 1.   The one or both of the first air blowing means and the second air blowing means are controlled based on the dehumidifying / humidifying amount estimated by the dehumidifying / humidifying amount calculating means. The air conditioner of Claim 12 or Claim 13. The moisture adsorbing means is a rotary type molded in a cylindrical shape and has air permeability in the axial direction, and includes a driving means for rotating the moisture adsorbing means,
The air conditioner according to claim 12 or 13, wherein the number of rotations of the moisture adsorbing unit is controlled by the driving unit based on the dehumidifying / humidifying amount estimated by the dehumidifying / humidifying amount calculating unit.   One or both of the inlet and the outlet of the first air passage are disposed on the interior ceiling, and air is sucked from the interior ceiling or exhausted to the interior ceiling. The air conditioner according to any one of claims 1 to 15.   The adsorbent supported by the moisture adsorbing means is composed of a silicon material provided with a large number of pores having a hole diameter of 1.5 to 2.5 nanometers, and the first relative humidity having a low humidity and the first humidity. The rate of change of the equilibrium adsorption amount of water relative to the relative humidity in the range relative to the second relative humidity that is higher than the relative humidity of 1 is greater than the rate of change of the equilibrium adsorption amount relative to the relative humidity outside the range of the relative humidity. And a first adsorbent having an adsorption characteristic such that the first relative humidity and the second relative humidity are in the range of 30% to 60%. The air conditioner in any one of thru | or 16.   The adsorbent supported by the moisture adsorbing means is composed of a zeolitic material provided with a large number of pores having a hole diameter of about 0.7 nanometer, and has a lower humidity than the first relative humidity. The rate of change of the equilibrium adsorption amount of water relative to the relative humidity in a range below 3 relative humidity is higher than the rate of change of the equilibrium adsorption amount relative to the relative humidity in the range above the third relative humidity. The air conditioner according to claim 1, wherein two adsorbents are used.   The adsorbent supported on the moisture adsorbing means is a mixture of zeolite and silica gel, which is synthesized by increasing the blending ratio of zeolite, and the terminal cation species of the zeolite is 50% or more of potassium. The air conditioner according to any one of claims 1 to 16, wherein a third adsorbent having a ratio is used. The air conditioner according to claim 17 , wherein the first adsorbent is used as an adsorbent carried on the first moisture adsorbing means. 19. The air conditioner according to claim 18 , wherein the second adsorbent is used as an adsorbent carried on the second moisture adsorbing means. The air conditioner according to claim 19 , wherein the third adsorbent is used as an adsorbent carried on the second moisture adsorbing means.

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