JP6548901B2 - Air conditioning system and air conditioning method - Google Patents

Description

  The present invention relates to a latent heat sensible heat separation type air conditioning system and an air conditioning method for separating and processing latent heat and sensible heat.

  FIG. 20 is a diagram showing a general desiccant-type air conditioning system. FIG. 21 is an air line diagram of a general desiccant-type air conditioning system.

  In recent years, a desiccant-type air conditioning system 100 that separates and processes latent heat and sensible heat has been used (see Patent Document 1).

As shown in FIGS. 20 and 21, the general desiccant-type air conditioning system 100 performs the following processing at high load.
(1) The outside air OA is introduced into the first air conditioner 110 and cooled by the precooler 111.
(2) The air cooled by the precooler 111 is dehumidified by the desiccant rotor 112.
(3) The heat of the air dehumidified by the desiccant rotor 112 is taken away by the sensible heat rotor 113.
(4) The air whose heat has been removed by the sensible heat rotor 113 is blown from the first air conditioner 110 to the second air conditioner 120.
(5) The cooling coil 121 cools the air blown from the first air conditioner 110 to the second air conditioner 120 and the return air RA blown from the living room 130 to the second air conditioner 120.
(6) The air cooled by the cooling coil 121 is blown by the fan 122 to the living room 130 as the supply air SA.
(W1) The return air RA blown from the living room 130 is taken into the first air conditioner 110, and is heated by the sensible heat rotor 113 using the heat taken in (4).
(W2) The air heated by the sensible heat rotor 113 is further heated by the regeneration heater 115.
(W3) The air heated by the regeneration heater 115 is allowed to pass through the desiccant rotor 112, the latent heat is removed, and the air is blown as exhaust EA.

JP-A-6-221618

  However, in the conventional desiccant-type air conditioning system 100 as in the prior art, a predetermined amount of regenerated energy is required regardless of the amount of cooling in the precooler 111 at high load, so W (2) in FIG. Since the regeneration heater 115 requires much energy, the system efficiency may be worse than that of the total heat exchanger.

  An object of the present invention is to solve the above-mentioned problems and to provide an air conditioning system and an air conditioning method of a latent heat sensible heat separation system with high efficiency under high load.

The air conditioning system according to the present invention is
With a dehumidifiable rotor that dehumidifies outside air,
An aftercooler that cools outside air that has passed through the dehumidifiable rotor and blows it to the room side;
A mixing unit that mixes the return air blown from the room into the outside air before being blown to the aftercooler through the dehumidifiable rotor;
A cooling member to which outside air blown from the aftercooler and return air blown from the room are blown;
And the like.

The air conditioning system according to the present invention is
The air conditioner further comprises a regenerative heater for heating the return air blown from the room and blowing the air to the dehumidifiable rotor.

The air conditioning system according to the present invention is
A sensible heat rotor is provided for cooling outside air before being mixed in the mixing section through the dehumidifiable rotor, by sensible heat of return air before being blown to the regeneration heater.

The air conditioning system according to the present invention is
A fan is provided to supply the air cooled by the cooling member to the living room .

The air conditioning system according to the present invention is
The dehumidifiable rotor may be a desiccant rotor.

The air conditioning method according to the present invention is
The first step of dehumidifying the outside air with a dehumidifiable rotor,
A second procedure for mixing the return air blown from the room with the dehumidified air outside;
Third step of cooling and dehumidifying the outside air mixed with the return air,
A fourth procedure in which the return air blown from the room is cooled and dehumidified outside air is further mixed;
A fifth step of cooling the outside air, to which the return air is further mixed;
A sixth procedure for supplying fresh air to the room;
It is characterized by having.

The air conditioning method according to the present invention is
A seventh procedure for heating the return air blown from the room;
And D. an eighth step of drying the dehumidifiable rotor which has been heated in the first step.

The air conditioning method according to the present invention is
It is characterized by having the procedure of heat-exchanging and cooling the outside air dehumidified by said 1st procedure by the sensible heat of the return air before being heated by said 7th procedure.

The air conditioning system according to the present invention comprises a dehumidifiable rotor for dehumidifying outside air, an aftercooler for cooling the outside air having passed through the dehumidable rotor, and blowing air to the room side, and blowing the air into the aftercooler through the dehumidable rotor. A cooling unit for mixing the return air blown from the room, the cooling air to which the outside air blown from the aftercooler and the return air blown from the room are blown, and the cooling member And a fan for supplying the stored air to the room, so that after dehumidifying with the dehumidifiable rotor, the return air is mixed with the outside air to obtain an air volume relative to the total dehumidifying amount for removing the indoor latent heat load. By increasing the required dehumidification amount per unit air volume and raising the dew point temperature required for cooling dehumidification, it is possible to raise the required cooling temperature above the general chilled water temperature Ri, to enable good latent heat sensible separation air conditioning efficiency. In addition, by adjusting the amount of return air to be mixed according to the conditions of the living room, the amount of return air is minimized while securing the necessary cold water temperature, and the throughput of the second air conditioner using high temperature cold water is increased. System efficiency can be increased.

  The air conditioning system according to the present invention includes the regeneration heater for heating the return air blown from the room and blowing the air to the dehumidifiable rotor, so that the dehumidifying efficiency of the dehumidifiable rotor can be improved.

  The air conditioning system according to the present invention includes the sensible heat rotor that cools the outside air before being mixed in the mixing section through the dehumidifiable rotor by the sensible heat of the return air before being blown to the regeneration heater. Heat exchange of high temperature air after dehumidifying outside air with the dehumidifiable rotor with the sensible heat rotor results in high temperature when the return air passes through the sensible heat rotor, thus reducing the heating energy by the regeneration heater It becomes possible.

The air conditioning system according to the present invention includes the fan for supplying the air cooled by the cooling member to the living room, so that the system efficiency can be increased.

  In the air conditioning system according to the present invention, since the dehumidifiable rotor is a desiccant rotor, more efficient latent heat sensible heat separation air conditioning is enabled.

In the air conditioning method according to the present invention, the first procedure of dehumidifying the outside air with the dehumidifiable rotor, the second procedure of mixing the return air blown from the room with the dehumidified air, and the outside air mixed with the return air Third step of cooling and dehumidifying the air, fourth step of further mixing the return air blown from the room with the cooled and dehumidified outside air, and fifth step of cooling the outside air further mixed with the return air And the sixth procedure for supplying outside air to the living room, the second procedure can compensate for the lack of the dehumidifying amount according to the third procedure with cold water at the same temperature level as general air conditioning, and the efficiency Allows good latent heat sensible heat separation air conditioning.

  The air conditioning method according to the present invention comprises: a seventh procedure for heating the return air blown from the room; an eighth procedure for drying the dehumidifiable rotor in which the heated return air is dehumidified in the first procedure; As a result, it is possible to improve the dehumidification efficiency of the dehumidifiable rotor.

  Since the air conditioning method according to the present invention has a procedure of mixing the return air blown from the living room cooled and dehumidified with the high temperature cold water before the cooling and dehumidified with the low temperature cold water, the dispersing process is performed for each living room It is possible to dehumidify, and it becomes possible to control each living room individually and comfortably. In addition, the efficiency of the entire system is improved because it is sufficient if the required amount of each room can be dehumidified.

It is a figure which shows the air conditioning system of the latent-heat sensible-heat isolation | separation system of 1st Embodiment. It is an air line figure of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 1st Embodiment. It is a figure which shows the air conditioning system of the latent-heat sensible-heat isolation | separation system of 2nd Embodiment. It is an air line figure of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 2nd Embodiment. It is a figure which shows the high load term of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 3rd Embodiment. It is an air line figure of the high load term of the air conditioning system of a latent heat sensible heat separation system of a 3rd embodiment. It is a figure which shows the middle term of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 3rd Embodiment. It is an air line figure of the middle term of the air conditioning system of a latent heat sensible heat separation system of a 3rd embodiment. It is a figure which shows the high load term of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 4th Embodiment. It is an air line figure of the high load term of the air conditioning system of a latent heat sensible heat separation system of a 4th embodiment. It is a figure which shows the intermediate period of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 4th Embodiment. It is an air line figure of the middle term of the air conditioning system of a latent heat sensible heat separation system of a 4th embodiment. It is a figure which shows the high load term of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 5th Embodiment. It is an air line figure of the high load term of the air conditioning system of a latent heat sensible heat separation system of a 5th embodiment. It is a figure which shows the middle term of the air conditioning system of the latent-heat sensible-heat isolation | separation system of 5th Embodiment. It is an air line figure of the middle term of the air conditioning system of a latent heat sensible heat separation system of a 5th embodiment. It is a figure which shows the air conditioning system of the latent-heat sensible-heat isolation | separation system of 6th Embodiment. It is a figure which shows the air conditioning system of the latent-heat sensible-heat isolation | separation system of 7th Embodiment. The example which installed multiple 2nd air conditioners of the air conditioning system of the latent-heat sensible-heat isolation | separation system of this embodiment is shown. It is a figure which shows the conventional air conditioning system. It is an air line figure of the conventional air conditioning system.

  Hereinafter, an embodiment of a latent heat sensible heat separation type air conditioning system 1 according to the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an air conditioning system of a latent heat sensible heat separation system according to a first embodiment. FIG. 2 is an air line diagram of the latent heat sensible heat separation type air conditioning system of the first embodiment.

  The air conditioning system 1 of the latent heat sensible heat separation system according to the first embodiment mixes a part of the return air RA blown from the room 30 with the outside air OA and sends it to the second air conditioner 20. A first air conditioner 10 for discharging the part as exhaust EA to the outside, and a second air conditioner 20 for taking in part of the outside air OA and return air RA blown from the first air conditioner 10 and blowing the air to the living room 30; Prepare.

  The first air conditioner 10 has a desiccant rotor 11 as a dehumidifiable rotor, a sensible heat rotor 12, an aftercooler 13, and a regeneration heater 14. Moreover, between the sensible heat rotor 12 and the aftercooler 13, it has the mixing part 50 which mixes return air RA with external air OA.

  The desiccant rotor 11 of the first embodiment may be a general desiccant rotor that can be dehumidified. The sensible heat rotor 12 exchanges sensible heat between the outside air OA and the return air RA. The aftercooler 13 can raise the target dew point temperature for cooling and dehumidifying by mixing the return air RA with the outside air OA, and can use 7 ° C. cold water used in general air conditioning. The regenerative heater 14 can use exhaust heat and room heat of a heat pump.

  The second air conditioner 20 also includes a cooling coil 21 as a cooling member and a fan 22 for blowing air to the living room 30. The cooling coil 21 can use high temperature cold water (about 14 ° C. to 16 ° C.) to process only sensible heat, and the efficiency of the refrigerator is improved.

  The return air RA is blown from the living room 30 to the first air conditioner 10 through the flow path 31. An adjustment damper 32 is provided in the flow path 31 so that the flow rate can be adjusted. The adjustment damper 32 may be provided for each air blowing point.

As shown in FIG. 1, in the air conditioning system 1 of the latent heat sensible heat separation system according to the first embodiment, the process is performed as follows at high load.
(1) The outside air OA is taken into the first air conditioner 10 and dehumidified by the desiccant rotor 11.
(2) The heat of the outside air OA dehumidified by the desiccant rotor 11 is taken away by the sensible heat rotor 12.
(3) The mixing unit 50 mixes the return air RA blown from the room 30 with the outside air OA whose heat has been removed by the sensible heat rotor 12.
(4) The outside air OA mixed with the return air RA in (3) is cooled and dehumidified by the aftercooler 13.
(5) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(6) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(7) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the first air conditioner 10, and heated by the sensible heat rotor 12 using the heat taken in (2).
(W2) The return air RA heated by the sensible heat rotor 12 is further heated by the regeneration heater 14.
(W3) The return air RA heated by the regeneration heater 14 is allowed to pass through the desiccant rotor 11, latent heat is removed from the desiccant rotor 11, and the air is blown as exhaust EA.

  Thus, when the high temperature outside air OA after dehumidifying with the desiccant rotor 11 is heat exchanged with the sensible heat rotor 12, the return air RA becomes high temperature when passing through the sensible heat rotor 12. It is possible to reduce the heating energy in 2).

  However, after exchanging heat with the sensible heat rotor 12, it is necessary to further cool the high temperature outside air OA after dehumidifying with the desiccant rotor 11, but if it is cooled with the aftercooler 13 as it is, the dehumidifying amount is about 7 ° C It runs short and latent heat sensible heat separation air conditioning becomes impossible.

  Therefore, after the latent heat sensible heat separation type air conditioning system 1 of the first embodiment dehumidifies with the desiccant rotor 11, the necessary absolute humidity is raised by mixing the return air RA with the outside air OA, and the cold water for the aftercooler 13 It is possible to use 7 ° C. cold water used in general air conditioning as the temperature of (1), which enables efficient dehumidification.

  In addition, since the return air RA becomes high temperature when passing through the sensible heat rotor 12, the heating energy at W (2) by the regenerative heater 14 can be reduced, so it is possible to widen the choice of heat sources. . For example, a heat pump, cogeneration waste heat, or solar heat can also be used.

  Furthermore, since the cooling coil 21 only needs to process sensible heat, high temperature cold water (about 14 ° C. to 16 ° C.) can be used.

  FIG. 3 is a view showing a latent heat sensible heat separation type air conditioning system according to a second embodiment. FIG. 4 is an air line diagram of a latent heat sensible heat separation type air conditioning system of the second embodiment.

  The air conditioning system 1 of the latent heat sensible heat separation system according to the second embodiment mixes a part of the return air RA blown from the room 30 with the outside air OA and sends it to the second air conditioner 20. A first air conditioner 10 for discharging the part as exhaust EA to the outside, and a second air conditioner 20 for taking in part of the outside air OA and return air RA blown from the first air conditioner 10 and blowing the air to the living room 30; Prepare.

  The first air conditioner 10 has a total heat exchange rotor 16 as a dehumidifiable rotor and an aftercooler 13. Moreover, between the sensible heat rotor 12 and the aftercooler 13, it has the mixing part 50 which mixes return air RA with external air OA.

  The total heat exchange rotor 16 of the second embodiment may be a general total heat exchange rotor that can be dehumidified. The aftercooler 13 can raise the target dew point temperature for cooling and dehumidifying by mixing the return air RA with the outside air OA, and can use 7 ° C. cold water used in general air conditioning.

  The second air conditioner 20 also has a cooling coil 21 and a fan 22 for blowing air into the living room 30.

  The return air RA is blown from the living room 30 to the first air conditioner 10 through the flow path 31. An adjustment damper 32 is provided in the flow path 31 so that the flow rate can be adjusted. The adjustment damper 32 may be provided for each air blowing point.

As shown in FIG. 3, in the air conditioning system 1 of the latent heat sensible heat separation type according to the second embodiment, the process is performed as follows at the time of high load.
(1) The outside air OA is introduced into the first air conditioner 10, and is exchanged with the exhaust air EA by the total heat exchange rotor 16 to cool and dehumidify.
(2) The return air RA blown from the room 30 is mixed with the outside air OA cooled and dehumidified by the total heat exchange rotor 16 in the mixing unit 50.
(3) The outside air OA mixed with the return air RA in (2) is cooled and dehumidified by the aftercooler 13.
(4) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(5) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(6) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the first air conditioner 10, passed through the total heat exchange rotor 16, heat exchanged, and blown as exhaust EA.

  It is preferable that the air conditioning system 1 of the latent heat sensible heat separation system of the second embodiment is used particularly in summer. The regeneration heater is unnecessary because of the total heat exchange rotor.

  However, the outside air OA after dehumidification with the total heat exchange rotor 16 is still high in temperature, and it is necessary to further cool and dehumidify. It will be short.

  Therefore, after the latent heat sensible heat separation type air conditioning system 1 of the second embodiment is dehumidified by the total heat exchange rotor 16, the required absolute humidity is raised by mixing the return air RA with the outside air OA, and for the aftercooler. As the temperature of cold water, 7 ° C. cold water used in general air conditioning can be used, which enables efficient dehumidification.

  Moreover, it becomes possible to construct the air conditioning system 1 of a latent heat sensible heat separation system at low cost by using only one total heat exchange rotor 16.

  FIG. 5 is a view showing an air conditioning system of a latent heat sensible heat separation system according to a third embodiment. FIG. 6 is an air line diagram in summer of the air conditioning system of the latent heat and sensible heat separation system according to the third embodiment. FIG. 7 is a diagram showing an intermediate period of the latent-heat sensible-heat separation type air conditioning system of the third embodiment. FIG. 8 is an air line diagram at an intermediate stage of the latent-heat / sensible-heat separation type air conditioning system of the third embodiment.

The air conditioning system 1 of the latent heat sensible heat separation system according to the third embodiment mixes a part of the return air RA sent from the room 30 with the outside air OA and sends it to the second air conditioner 20. A first air conditioner 10 for discharging the part as exhaust EA to the outside, and a second air conditioner 20 for taking in part of the outside air OA and return air RA blown from the first air conditioner 10 and blowing the air to the living room 30; Prepare.

  The first air conditioner 10 has a dual-purpose rotor 18 as a dehumidifiable rotor, an aftercooler 13 and a regeneration heater 14. Moreover, between the sensible heat rotor 12 and the aftercooler 13, it has the mixing part 50 which mixes return air RA with external air OA.

  The dual-use rotor 18 according to the third embodiment is a rotor that can selectively use the function as the desiccant rotor and the function of the total heat exchange rotor according to the rotational speed. When the rotation speed is about 2 to 20 rph, it functions as a desiccant rotor and performs mainly dehumidification. When the rotation speed is about 8 to 20 rpm, it functions as a total heat exchanger and mainly performs total heat exchange with the exhaust EA.

  The number of revolutions of the dual-purpose rotor 18 may be changed by changing the number of revolutions of a drive unit (not shown) or by switching a reduction member (not shown) having a different reduction ratio.

  The aftercooler 13 can raise the target dew point temperature for cooling and dehumidifying by mixing the return air RA with the outside air OA, and can use 7 ° C. cold water used in general air conditioning. The regenerative heater 14 can use exhaust heat and room heat of a heat pump.

  The second air conditioner 20 also has a cooling coil 21 and a fan 22 for blowing air into the living room 30. The cooling coil 21 can use high temperature cold water (about 14 ° C. to 16 ° C.) to process only sensible heat, and the efficiency of the refrigerator is improved.

  The return air RA is blown from the living room 30 to the first air conditioner 10 through the flow path 31. An adjustment damper 32 is provided in the flow path 31 so that the flow rate can be adjusted. The adjustment damper 32 may be provided for each air blowing point.

  In the air conditioning system 1 of the latent heat sensible heat separation system of the third embodiment, as an example, the specification of the first air conditioner 10 is changed and processed in a high load period such as summer, and an intermediate period.

  First, the process of the air conditioning system 1 of the latent heat sensible heat separation system of the third embodiment in a high load period such as summer will be described. As shown in FIG. 5 and FIG. 6, in summer, the dual-purpose rotor 18 is used as a total heat exchange rotor with the number of rotations increased to 10 to 20 rpm. The regeneration heater 14 is not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the third embodiment in summer is processed as follows.
(1) The outside air OA is taken into the first air conditioner 10, and the dual use rotor 18 is used as a total heat exchange rotor to cool and dehumidify.
(2) The return air RA blown from the room 30 is mixed with the outside air OA cooled and dehumidified by the total heat exchange rotor in the mixing unit 50.
(3) The outside air OA mixed with the return air RA in (2) is cooled and dehumidified by the aftercooler 13.
(4) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(5) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(6) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1, W2) The return air RA blown from the living room 30 is taken into the first air conditioner 10, without using the regenerative heater 14, and passing through the combined rotor 18 as a total heat exchange rotor to exchange heat and exhaust EA. As a fan.

  As described above, the latent-heat sensible-heat separation air conditioning system 1 according to the third embodiment used in the summer cools and dehumidifies the relatively high-temperature outside air OA with the dual-purpose rotor 18 functioning as a total heat exchange rotor. The need to use 14 is eliminated, energy for operating the regenerative heater 14 is not required, and energy saving can be realized compared to a general desiccant system.

  However, the air after dehumidification with dual-purpose rotor 18 is still high temperature and needs to be further cooled, but if it is cooled with aftercooler 13 as it is, the amount of dehumidification is insufficient, and with cold water of about 7 ° C, latent heat sensible heat It becomes impossible to separate air conditioning.

  Therefore, after the latent heat sensible heat separation type air conditioning system 1 of the third embodiment is dehumidified by the dual use rotor 18, the required absolute humidity is raised by mixing the return air RA with the outside air OA, and the cold water for the aftercooler 13 It is possible to use 7 ° C. cold water used in general air conditioning as the temperature of (1), which enables efficient dehumidification.

  Moreover, it becomes possible to construct the air conditioning system 1 of a latent heat sensible heat separation system at low cost by using only one dual-purpose rotor 18.

  Next, processing of the air conditioning system 1 of the latent heat sensible heat separation system of the third embodiment in the middle period will be described. As shown in FIG. 7 and FIG. 8, in the intermediate period, the dual-purpose rotor 18 is used as a desiccant rotor with the number of rotations reduced to 2 to 20 rph. In the middle period, the aftercooler 13 is not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the third embodiment in the middle period is processed as follows.
(1) The outside air OA is introduced into the first air conditioner 10 and used as a desiccant rotor by lowering the number of revolutions of the dual-purpose rotor 18, and dehumidified.
(2, 3, 4) In the intermediate period, the outside air OA dehumidified by the desiccant rotor is not mixed with the return air RA and the aftercooler 13 is not used, and the first air conditioner 10 to the second air conditioner 20 as it is Be blown.
(5) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(6) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the first air conditioner 10,
It heats with the regeneration heater 14.
(W2) The return air RA heated by the regeneration heater 14 is allowed to pass through the dual-purpose rotor 18 used as the desiccant rotor, latent heat is removed from the desiccant rotor, and is blown as the exhaust air EA.

  Thus, the latent heat sensible heat separation type air conditioning system 1 of the third embodiment can perform efficient latent heat sensible heat separation air conditioning according to the load, and can respond efficiently even to the intermediate period. Become.

Furthermore, the latent-heat sensible-heat separation type air conditioning system 1 of the third embodiment increases the number of revolutions of the dual-purpose rotor 18 and uses it as a total heat exchanger, recovers waste energy, and then replaces the aftercooler 13 with warm water or the like. It is possible to cope with the winter season by using a heating heater and replacing the cooling coil 21 with a heating coil.

  FIG. 9 is a diagram showing a high load period of the latent heat sensible heat separation type air conditioning system of the fourth embodiment. FIG. 10 is a high load air line diagram of the air conditioning system of the latent heat sensible heat separation type according to the fourth embodiment. FIG. 11 is a diagram illustrating an intermediate stage of the latent-heat sensible-heat separation air-conditioning system according to the fourth embodiment. FIG. 12 is an air line diagram at an intermediate stage of the air conditioning system of the latent heat and sensible heat separation system according to the fourth embodiment.

  The air conditioning system 1 of the latent heat sensible heat separation system according to the fourth embodiment mixes a part of the return air RA blown from the room 30 with the outside air OA and sends it to the second air conditioner 20. A first air conditioner 10 for discharging the part as exhaust EA to the outside, and a second air conditioner 20 for taking in part of the outside air OA and return air RA blown from the first air conditioner 10 and blowing the air to the living room 30; Prepare.

  The first air conditioner 10 has a dual-use rotor 18 as a dehumidifiable rotor, a sensible heat treatment rotor 12, an aftercooler 13, and a regeneration heater 14. Moreover, between the sensible heat rotor 12 and the aftercooler 13, it has the mixing part 50 which mixes return air RA with external air OA.

  The dual-purpose rotor 18 according to the fourth embodiment is a rotor that can selectively use the function as the desiccant rotor and the function of the total heat exchange rotor according to the rotational speed. When the rotation speed is about 2 to 20 rph, it functions as a desiccant rotor and performs mainly dehumidification. When the rotation speed is about 8 to 20 rpm, it functions as a total heat exchange rotor and mainly performs total heat exchange with the exhaust gas EA.

  The number of revolutions of the dual-purpose rotor 18 may be changed by changing the number of revolutions of a drive unit (not shown) or by switching a reduction member (not shown) having a different reduction ratio.

  The sensible heat processing rotor 12 exchanges sensible heat between the outside air OA and the return air RA. The aftercooler 13 can raise the target dew point temperature for cooling and dehumidifying by mixing the return air RA with the outside air OA, and can use 7 ° C. cold water used in general air conditioning. The regenerative heater 14 can use exhaust heat and room heat of a heat pump.

  The second air conditioner 20 also has a cooling coil 21 and a fan 22 for blowing air into the living room 30. The cooling coil 21 can use high temperature cold water (about 14 ° C. to 16 ° C.) to process only sensible heat, and the efficiency of the refrigerator is improved.

  The return air RA is blown from the living room 30 to the first air conditioner 10 through the flow path 31. An adjustment damper 32 is provided in the flow path 31 so that the flow rate can be adjusted. The adjustment damper 32 may be provided for each air blowing point.

  In the air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment, the specification of the first air conditioner 10 is changed and processed in a high load period such as summer and the middle period.

  First, the process of the air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment in a high load period such as summer will be described. As shown in FIG. 9 and FIG. 10, in summer, the dual-purpose rotor 18 is used as a total heat exchange rotor with the number of rotations increased to 8 to 20 rpm. The sensible heat rotor 12 and the regeneration heater 14 are not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment in summer is processed as follows.
(1) The outside air OA is taken into the first air conditioner 10, and the dual use rotor 18 is used as a total heat exchange rotor to cool and dehumidify.
(2, 3) The return air RA blown from the room 30 is mixed with the outside air OA cooled and dehumidified by the total heat exchange rotor in the mixing unit 50.
(4) The outside air OA mixed with the return air RA in (3) is cooled and dehumidified by the aftercooler 13.
(5) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(6) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(7) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1, W2, W3) The return air RA blown from the living room 30 is taken into the first air conditioner 10, and the combined use rotor 18 as a total heat exchange rotor is passed without using the sensible heat rotor 12 and the regeneration heater 14. Heat exchange and blow as exhaust EA.

  As described above, the latent-heat sensible-heat separation type air conditioning system 1 of the fourth embodiment used in the summer cools and dehumidifies the relatively high-temperature outside air OA with the dual-purpose rotor 18 functioning as a total heat exchange rotor. The need to use 14 is eliminated, energy for operating the regenerative heater 14 is not required, and energy saving can be realized compared to a general desiccant system.

  However, the air after dehumidification with dual-purpose rotor 18 is still high temperature and needs to be further cooled, but if it is cooled with aftercooler 13 as it is, the amount of dehumidification is insufficient, and with cold water of about 7 ° C, latent heat sensible heat It becomes impossible to separate air conditioning.

  Therefore, the latent heat sensible heat separation type air conditioning system 1 of the fourth embodiment dehumidifies with the dual use rotor 18 and then mixes the return air RA with the outside air OA to raise the necessary absolute humidity, and cool water for the aftercooler 13 It is possible to use 7 ° C. cold water used in general air conditioning as the temperature of (1), which enables efficient dehumidification.

  Moreover, it becomes possible to construct the air conditioning system 1 of a latent heat sensible heat separation system at low cost by using only one dual-purpose rotor 18.

  Next, processing of the air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment in the middle period will be described. As shown in FIGS. 11 and 12, in the intermediate period, the dual-purpose rotor 18 is used as a desiccant rotor with the number of rotations reduced to 2 to 20 rph. In the middle period, the aftercooler 13 is not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment in the middle period is processed as follows.
(1) The outside air OA is introduced into the first air conditioner 10 and used as a desiccant rotor by lowering the number of revolutions of the dual-purpose rotor 18, and dehumidified.
(2) The heat of the outside air OA dehumidified by the desiccant rotor is taken away by the sensible heat rotor 12.
(3, 4) In the intermediate period, the outside air OA that has been deprived of heat by the sensible heat rotor 12 is not mixed with the return air RA, and the aftercooler 13 is not used either, and the first air conditioner 10 to the second air conditioner as it is It is blown to 20.
(6) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(7) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the second air conditioner 10, and heated by the sensible heat rotor 12 using the heat taken in (2).
(W2) The return air RA heated by the sensible heat rotor 12 is heated by the regeneration heater 14.
(W3) The return air RA heated by the regeneration heater 14 is allowed to pass through the dehumidifiable rotor 11, the latent heat is removed from the desiccant rotor 11, and the air is blown as exhaust EA.

  As described above, in the latent heat sensible heat separation type air conditioning system 1 according to the fourth embodiment, efficient latent heat sensible heat separation air conditioning can be performed according to the load, and it is possible to efficiently cope with the intermediate period. Become.

  FIG. 13 is a diagram showing a high load period of the latent heat sensible heat separation type air conditioning system of the fifth embodiment. FIG. 14 is a high load air line diagram of a latent heat sensible heat separation type air conditioning system according to the fifth embodiment. FIG. 15 is a diagram showing an intermediate stage of the air conditioning system of the latent heat and sensible heat separation system according to the fifth embodiment. FIG. 16 is an air line diagram at an intermediate stage of the air conditioning system of the latent heat and sensible heat separation system according to the fifth embodiment.

  The air conditioning system 1 of the latent heat sensible heat separation type according to the fifth embodiment mixes a part of the return air RA blown from the room 30 with the outside air OA and sends it to the second air conditioner 20. A first air conditioner 10 for discharging the part as exhaust EA to the outside, and a second air conditioner 20 for taking in part of the outside air OA and return air RA blown from the first air conditioner 10 and blowing the air to the living room 30; Prepare.

  The first air conditioner 10 includes a precooler 19, a dual-use rotor 18 as a dehumidifiable rotor, a sensible heat rotor 12, an aftercooler 13, and a regeneration heater 14. Moreover, between the sensible heat rotor 12 and the aftercooler 13, it has the mixing part 50 which mixes return air RA with external air OA.

  The dual-use rotor 18 of the fifth embodiment is a rotor that can selectively use the function as the desiccant rotor and the function of the total heat exchange rotor according to the number of revolutions. When the rotation speed is about 2 to 20 rph, it functions as a desiccant rotor and performs mainly dehumidification. When the rotation speed is about 8 to 20 rpm, it functions as a total heat exchange rotor and mainly performs total heat exchange with the exhaust gas EA.

  The number of revolutions of the dual-purpose rotor 18 may be changed by changing the number of revolutions of a drive unit (not shown) or by switching a reduction member (not shown) having a different reduction ratio.

  The precooler 19 cools the outside air OA. The sensible heat processing rotor 12 exchanges sensible heat between the outside air OA and the return air RA. The aftercooler 13 can raise the target dew point temperature for cooling and dehumidifying by mixing the return air RA with the outside air OA, and can use 7 ° C. cold water used in general air conditioning. The regenerative heater 14 can use exhaust heat and room heat of a heat pump.

  The second air conditioner 20 also has a cooling coil 21 and a fan 22 for blowing air into the living room 30. The cooling coil 21 can use high temperature cold water (about 14 ° C. to 16 ° C.) to process only sensible heat, and the efficiency of the refrigerator is improved.

  The return air RA is blown from the living room 30 to the first air conditioner 10 through the flow path 31. An adjustment damper 32 is provided in the flow path 31 so that the flow rate can be adjusted. The adjustment damper 32 may be provided for each air blowing point.

  In the air conditioning system 1 of the latent heat sensible heat separation system of the fifth embodiment, a portion to be used or a portion not to be used of the first air conditioner 10 is switched and processed in a high load period and an intermediate period such as summer.

  First, the process of the air conditioning system 1 of the latent heat sensible heat separation system of the fifth embodiment in a high load period such as summer will be described. As shown in FIG. 13 and FIG. 14, in summer, the dual-purpose rotor 18 is used as a total heat exchange rotor with the number of rotations increased to 8 to 20 rpm. The precooler 19, the sensible heat rotor 12 and the regeneration heater 14 are not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the fifth embodiment in summer is processed as follows.
(1, 2) The outside air OA is introduced into the first air conditioner 10, and the dual use rotor 18 is used as a total heat exchange rotor to cool and dehumidify.
(3, 4) The return air RA blown from the room 30 is mixed with the outside air OA cooled and dehumidified by the total heat exchange rotor in the mixing unit 50.
(5) The outside air OA mixed with the return air RA is cooled and dehumidified by the aftercooler 13.
(6) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(7) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(8, 8 ′) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1, W2, W3) The return air RA blown from the living room 30 is taken into the first air conditioner 10, and the combined use rotor 18 as a total heat exchange rotor is passed without using the sensible heat rotor 12 and the regeneration heater 14. Heat exchange and blow as exhaust EA.

  As described above, the latent-heat sensible-heat separation air conditioning system 1 of the fifth embodiment used in the summer cools and dehumidifies the relatively high-temperature outside air OA with the dual-purpose rotor 18 functioning as a total heat exchange rotor. The need to use 14 is eliminated, energy for operating the regenerative heater 14 is not required, and energy saving can be realized compared to a general desiccant system.

  However, the air after dehumidification with dual-purpose rotor 18 is still high temperature and needs to be further cooled, but if it is cooled with aftercooler 13 as it is, the amount of dehumidification is insufficient, and with cold water of about 7 ° C, latent heat sensible heat It becomes impossible to separate air conditioning.

  Therefore, the latent heat sensible heat separation type air conditioning system 1 of the fifth embodiment dehumidifies with the dual use rotor 18 and then mixes the return air RA with the outside air OA to increase the necessary absolute humidity, and cool water for the aftercooler 13 It is possible to use 7 ° C. cold water used in general air conditioning as the temperature of (1), which enables efficient dehumidification.

  Next, processing of the air conditioning system 1 of the latent heat sensible heat separation system of the fourth embodiment in the middle period will be described. As shown in FIG. 15 and FIG. 16, in the intermediate period, the dual-purpose rotor 18 is used as a desiccant rotor with the number of rotations reduced to 2 to 20 rph. In the middle period, the aftercooler 13 is not used.

The air conditioning system 1 of the latent heat sensible heat separation system of the fifth embodiment in the intermediate period is processed as follows.
(1) The outside air OA is introduced into the first air conditioner 10, and is precooled by the precooler 19 to a temperature at which the target humidity can be achieved with the dehumidifying ability of the dual use rotor 18 used as the desiccant rotor.
(2) The rotation speed of the dual-purpose rotor 18 is lowered to use as a desiccant rotor to dehumidify the pre-cooled outside air OA.
(3) The heat of the outside air OA dehumidified by the desiccant rotor is taken away by the sensible heat rotor 12.
(4, 5, 6) In the intermediate period, the outside air OA that has been deprived of heat by the sensible heat rotor 12 is not mixed with the return air RA, and the aftercooler 13 is not used, and the first air conditioner 10 to the second Air is blown to the air conditioner 20.
(7) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(8) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the second air conditioner 10, and heated by the sensible heat rotor 12 using the heat taken in (2).
(W2) The return air RA heated by the sensible heat rotor 12 is heated by the regeneration heater 14.
(W3) The return air RA heated by the regeneration heater 14 is allowed to pass through the dehumidifiable rotor 11, the latent heat is removed from the desiccant rotor 11, and the air is blown as exhaust EA.

  Thus, in the latent heat sensible heat separation type air conditioning system 1 of the fifth embodiment, efficient latent heat sensible heat separation air conditioning can be performed according to the load, and it is possible to efficiently cope with the intermediate period Become. In addition, by performing precooling by the precooler 19, even if the indoor sensible heat load is small, the room temperature can be maintained at an appropriate temperature without reheating.

  In addition, even in the middle of the year, the outside air temperature is high, it is difficult to dehumidify with the dual purpose rotor 18 as the desiccant rotor, and precool is performed in the case of low sensible heat load where room temperature decreases when cooling dehumidification is performed aftercool. As a result, even with low sensible heat load, reheating is unnecessary and energy saving is achieved.

  FIG. 17 is a diagram showing an air conditioning system of a latent heat sensible heat separation system according to a sixth embodiment.

  The latent-heat sensible-heat separation type air conditioning system 1 according to the sixth embodiment cools and dehumidifies the outside air OA and blows it to the second air conditioner 20, and also discharges a part of the return air RA to the outside as exhaust EA. The air conditioner 10 and a second air conditioner 20 that takes in part of the outside air OA and the return air RA blown from the first air conditioner 10 and blows air to the living room 30 are provided.

  The first air conditioner 10 has a total heat exchange rotor 16 as a dehumidifiable rotor, a pre-after-cooler 13a, and an after-cooler 13b.

  The total heat exchange rotor 16 of the sixth embodiment may be a general total heat exchange rotor that can be dehumidified. The pre-after-cooler 13a is for pre-cooling with high temperature cold water to achieve energy saving before the after-cooler 13b. The aftercooler 13 b uses low-temperature cold water of 7 ° C. used in general air conditioning, and the amount of cold water is controlled by an indoor humidifier or the like. In addition, when there are a plurality of indoor air conditioners and the plurality of indoor humidifiers have opposite values, the amount of cold water may be controlled using any one indicated value as an index.

  The second air conditioner 20 also has a cooling coil 21 and a fan 22 for blowing air into the living room 30.

  The return air RA is blown from the living room 30 to the first air conditioner 10 and the second air conditioner 20 through the flow path 31. An adjustment damper 32 may be provided in the flow path 31 to adjust the flow rate. The adjustment damper 32 may be provided for each air blowing point.

As shown in FIG. 17, in the air conditioning system 1 of the latent heat sensible heat separation type according to the sixth embodiment, the process is performed as follows at the time of high load.
(1) The outside air OA is introduced into the first air conditioner 10, and is exchanged with the exhaust air EA by the total heat exchange rotor 16 to cool and dehumidify.
(2) The outside air OA cooled and dehumidified by the total heat exchange rotor 16 is cooled and dehumidified by the high temperature cold water in the pre-after cooler 13a.
(3, 4) The outside air OA cooled and dehumidified by the pre-after-cooler 13a is cooled and dehumidified by low-temperature cold water by the aftercooler 13b.
(5) The outside air OA cooled and dehumidified by the aftercooler 13 is blown from the first air conditioner 10 to the second air conditioner 20.
(6) The outside air OA blown from the first air conditioner 10 and the return air RA blown from the room 30 are taken into the second air conditioner 20 and cooled by the cooling coil 21.
(7) The outside air OA cooled by the cooling coil 21 is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the first air conditioner 10, passed through the total heat exchange rotor 16, heat exchanged, and blown as exhaust EA.

  It is preferable that the air conditioning system 1 of the latent heat sensible heat separation system of the sixth embodiment be used particularly in summer. The regeneration heater is not necessary because of the total heat exchange rotor 16. Moreover, it becomes possible to construct the air conditioning system 1 of a latent heat sensible heat separation system at low cost by using only one total heat exchange rotor 16.

  However, the outside air OA after dehumidifying with the total heat exchange rotor 16 is still high in temperature, and it is necessary to further cool and dehumidify. However, if it is cooled with the aftercooler 13b as it is, it is dehumidified with general cold water (about 7 ° C.) It will be short.

  Therefore, the latent heat sensible heat separation type air conditioning system 1 of the sixth embodiment dehumidifies with the total heat exchange rotor 16 and then performs high temperature cooling with the pre-after-cooler 13a to reduce the usage of 7 ° C cold water with low refrigerator efficiency. To achieve efficient dehumidification. When the dehumidification is insufficient, the whole air volume may be increased by mixing the return air RA with the outside air OA to increase the dehumidification amount.

  FIG. 18 is a diagram showing an air conditioning system of a latent heat / sensible heat separation system according to a seventh embodiment.

  The latent-heat sensible-heat separation type air conditioning system 1 according to the seventh embodiment exchanges and cools the outside air OA, blows it to the second air conditioner 20, and discharges a part of the return air RA to the outside as exhaust EA. A first air conditioner 10, and a second air conditioner 20 that takes in part of the outside air OA and the return air RA sent from the first air conditioner 10 and sends the air to the living room 30.

  The first air conditioner 10 has a total heat exchange rotor 16 as a dehumidifiable rotor, and a pre-after-cooler 13a.

  The total heat exchange rotor 16 of the second embodiment may be a general total heat exchange rotor that can be dehumidified. The pre-after-cooler 13a dehumidifies with high temperature cold water to a humidity slightly higher than the indoor humidity.

The second air conditioner 20 also has an aftercooler 21 a, a high temperature cold water coil 21 b, and a fan 22 for blowing air to the living room 30. The aftercooler 21 a uses 7 ° C. cold water used in general air conditioning, and the amount of cold water is controlled by an indoor humidifier or the like. The aftercooler 21a and the high temperature cold water coil 21b are installed in parallel. The outside air OA is blown from the first air conditioner 10 to the aftercooler 21a. Further, the return air RA whose flow rate is adjusted by the first adjustment damper 32a is blown from the room 30 to the aftercooler 21a. The return air RA whose flow rate is adjusted by the second adjustment damper 32 b is blown from the room 30 to the high temperature cold water coil 21 b to remove sensible heat.

As shown in FIG. 18, in the air conditioning system 1 of the latent heat and sensible heat separation system according to the seventh embodiment, the process is performed as follows at the time of high load.
(1) The outside air OA is introduced into the first air conditioner 10, and is exchanged with the exhaust air EA by the total heat exchange rotor 16 to cool and dehumidify.
(2) The outside air OA cooled and dehumidified by the total heat exchange rotor 16 is cooled and dehumidified by the high temperature cold water in the pre-after cooler 13a.
(3) The outside air OA cooled and dehumidified by the pre-after cooler 13 a is blown from the first air conditioner 10 to the second air conditioner 20.
(4a) The aftercooler 13a cools and dehumidifies the outside air OA cooled and dehumidified and the return air RA blown from the room 30 and having its flow rate adjusted by the first adjustment damper 32a with the low temperature cold water in the aftercooler 21a.
(4b) In parallel, the high temperature cold water coil 21b removes sensible heat from the return air RA which is blown from the living room 30 and whose flow rate is adjusted by the second adjustment damper 32b.
(5) The outside air OA cooled by the aftercooler 21a and the high temperature cold water coil 21b is blown by the fan 22 to the living room 30 as the air supply SA.
(W1) The return air RA blown from the living room 30 is taken into the first air conditioner 10, passed through the total heat exchange rotor 16, heat exchanged, and blown as exhaust EA.

  It is preferable that the air conditioning system 1 of the latent heat sensible heat separation system of the seventh embodiment is used particularly in summer. The regeneration heater is unnecessary because of the total heat exchange rotor. Moreover, it becomes possible to construct the air conditioning system 1 of a latent heat sensible heat separation system at low cost by using only one total heat exchange rotor 16.

  However, the outside air OA after dehumidifying with the total heat exchange rotor 16 is still high in temperature, and it is necessary to further cool and dehumidify, but if it is cooled with the aftercooler 21a as it is, it will be dehumidified with general cold water (about 7 ° C) It will be short.

  Therefore, the latent-heat sensible-heat separation type air conditioning system 1 of the seventh embodiment is dehumidified by the total heat exchange rotor 16 and then dehumidified by high-temperature cold water in the pre-after-cooler 13a to use low-temperature cold water used in the aftercooler 21a. The efficiency can be improved by reducing the amount of Also, when dehumidification is insufficient, it is sufficient to increase the overall air volume by mixing the return air RA with the outside air OA and increase the amount of dehumidification, so the temperature of cold water for the aftercooler 21a is generally It is possible to use 7 ° C cold water used for air conditioning.

  FIG. 19 shows an example in which a plurality of second air conditioners 20 of the air conditioning system 1 of the latent heat sensible heat separation system according to the present embodiment are installed.

  The air conditioning system 1 of the latent heat sensible heat separation system according to the seventh embodiment can control the amount of dehumidification with the second air conditioner 20. For example, a plurality of second air conditioners 20 can be installed on each floor or each room. Therefore, the air conditioning system 1 of the latent heat sensible heat separation type according to the seventh embodiment is dehumidified by controlling the first adjustment damper 32a and the second adjustment damper 32b shown in FIG. It is possible to control each floor or each room individually and comfortably. In addition, the efficiency of the entire system is improved because it is only necessary to dehumidify the required amount for each floor or each room.

  Further, since it is not necessary to blow the return air RA to the first air conditioner 10, a duct between the first air conditioner 10 and the second air conditioner 20 among the ducts forming the flow path 31 is not necessary.

  The sixth embodiment shown in FIG. 17 and the seventh embodiment shown in FIG. 18 correspond to those of the aftercooler 13 of the first air conditioner 10 of the fourth embodiment shown in FIG. Alternatively, the pre-after-cooler 13a and the after-coolers 13b and 21a may be provided.

  As described above, the air conditioning system 1 according to the present embodiment passes the desiccant rotor 11, the total heat exchange rotor 16, or the dual use rotor 18, and the desiccant rotor 11, the total heat exchange rotor 16, or the dual use rotor 18 for dehumidifying the outside air OA. The outdoor air is cooled from the indoor room 30 before it is blown to the aftercooler 13 through the aftercooler 13 which cools the outdoor air OA and blows it to the living room 30 side, the desiccant rotor 11, the total heat exchange rotor 16 or the combined rotor 18 Since the mixing unit 50 for mixing the return air RA is provided, the room latent heat load is achieved by mixing the return air RA with the outside air OA after dehumidifying with the desiccant rotor 11, the total heat exchange rotor 16, or the dual-use rotor 18. To increase the air volume relative to the total dehumidification volume to By increasing the required dew point temperature, it is possible to increase the required cooling temperature to 7 ° C. or higher are common cold temperatures.

  The air conditioning system 1 according to the present embodiment includes the regenerative heater 14 that heats the return air RA blown from the room 30 and blows to the desiccant rotor 11 or the dual purpose rotor 18, so that the desiccant rotor 11 or the dual purpose rotor 18 is It is possible to improve the dehumidification efficiency.

  In the air conditioning system 1 according to the present embodiment, the outside air OA before being mixed by the mixing unit 50 through the desiccant rotor 11, the total heat exchange rotor 16, or the dual use rotor 18 is returned air before being blown to the regeneration heater 14. Since the sensible heat rotor 12 is cooled by the sensible heat of RA, heat exchange of high temperature air after dehumidifying the outside air OA with the desiccant rotor 11, the total heat exchange rotor 16, or the dual purpose rotor 18 is performed by the sensible heat rotor 12, Since the return air RA becomes high temperature when passing through the sensible heat rotor 12, it is possible to reduce the heating energy by the regenerative heater 14.

  In the air conditioning system 1 according to the present embodiment, the cooling member 21 to which the outside air OA blown from the aftercooler 13 and the return air RA blown from the living room 30 are blown and the air cooled by the cooling member 21 into the living room 30 Since the fan 22 for supplying air is provided, it is possible to blow the comfortable air supply SA by adjusting the temperature of the cooling member 21 according to the condition of the living room 30.

  The air conditioning system 1 according to the present embodiment includes the pre-after-cooler 13a that cools and dehumidifies the outside air before it is blown to the aftercoolers 13b and 21a through the total heat exchange rotor 16 with high temperature cold water. Therefore, the amount of low-temperature cold water used can be reduced, and efficient dehumidification is possible.

  The air conditioning system 1 according to the present embodiment includes the first air conditioner 10 including the total heat exchange rotor 16 and the pre-after cooler 13a, and the second air conditioner 20 including the aftercooler 21a and the mixing unit 50. The two air conditioners 20 can be individually and comfortably controlled. In addition, since it is only necessary to dehumidify the required amount of each second air conditioner 20, the efficiency of the entire system is improved.

In the air conditioning system 1 according to the present embodiment, the aftercooler 21a cools the outside air that has been cooled and dehumidified by the pre-aftercooler 13a and the return air RA that is blown from the room 30 and whose flow rate is adjusted by the first adjustment damper 32a. Since the second air conditioner 20 dehumidifies in parallel to the aftercooler 21a, it has a high temperature cold water coil 21b for removing the sensible heat of the return air which is blown from the room 30 and whose flow rate is adjusted by the second adjustment damper 32b. By controlling the first adjustment damper 32a and the second adjustment damper 32b, it is possible to control each second air conditioner 20 individually and comfortably.

  In the air conditioning system according to the present embodiment, since the dehumidifiable rotor is composed of the desiccant rotor 11, more efficient latent heat sensible heat separation air conditioning is enabled.

  In the air conditioning system 1 according to the present embodiment, since the dehumidifiable rotor is composed of the total heat exchange rotor 16, the latent heat sensible heat separation air conditioning can be performed inexpensively and efficiently.

  In the air conditioning system 1 according to the present embodiment, the dehumidifiable rotor has the functions of the desiccant rotor 11 and the total heat exchange rotor 16 by changing the number of rotations, so efficient latent heat sensible heat separation air conditioning according to the load. To be possible.

  In the air conditioning method according to the present embodiment, a first procedure for dehumidifying the outside air OA with the desiccant rotor 11, a second procedure for mixing the return air RA blown from the room 30 with the dehumidified outside air OA, and a return air The third procedure for cooling the outside air OA mixed with RA, the fourth procedure for further mixing the return air RA blown from the room 30 to the cooled outside air OA, and the return air RA further mixed Since it has the 5th procedure of cooling outside air OA and the 6th procedure of supplying outside air OA to living room 30, it is cold-water temperature used by general air conditioning by the 3rd procedure according to the 2nd procedure. The deficiency of the dehumidification amount can be compensated at 7 ° C. or higher, and efficient latent heat sensible heat separation air conditioning can be performed.

  The air conditioning method according to the present embodiment includes a seventh procedure of heating the return air RA blown from the living room 30, and an eighth procedure of drying the desiccant rotor 11 from which the heated return air RA has been dehumidified in the first procedure. And the dehumidifying efficiency of the desiccant rotor 11 can be improved.

  The air conditioning method according to the present embodiment includes a procedure for heat exchange and cooling of the outside air OA dehumidified in the first procedure by the sensible heat of the return air RA before being heated in the seventh procedure. It is possible to reduce energy.

  In the air conditioning method according to the present embodiment, a procedure for dehumidifying the outside air OA with the total heat exchange rotor 16, a procedure for cooling and dehumidifying the outside air OA dehumidified by the total heat exchange rotor 16 with high temperature cold water, and Since the procedure for cooling and dehumidifying the outside air OA with low temperature cold water and the procedure for supplying the outside air OA cooled and dehumidified with low temperature cold water to the room 30, the required absolute humidity is raised and the cold water for cooling dehumidification with low temperature cold water It is possible to use 7 ° C. cold water used in general air conditioning as the temperature of (1), which enables efficient dehumidification. When the dehumidification is insufficient, the whole air volume may be increased by mixing the return air RA with the outside air OA to increase the dehumidification amount.

  In the air conditioning method according to the present embodiment, a procedure for mixing the return air RA blown from the room 30 with the outside air OA cooled and dehumidified with low temperature cold water, and dehumidifying the outside air OA mixed with the return air RA with high temperature cold water Since it has a procedure, it can disperse-process and dehumidify for every living room 30, and it becomes possible to control each living room 30 separately comfortably, respectively. In addition, it is only necessary to dehumidify the required amount for each living room 30, so the efficiency of the entire system is improved.

  Since the air conditioning method according to the present embodiment has a procedure of mixing the return air RA blown from the room 30 with the outside air OA cooled and dehumidified with the high temperature cold water before cooling and dehumidifying with the low temperature cold water, it is dispersed in every room 30 It can be processed and dehumidified, and it becomes possible to control each living room 30 individually and comfortably. In addition, it is only necessary to dehumidify the required amount for each living room 30, so the efficiency of the entire system is improved.

  In addition, by adopting the after-cool system, the heat recovery amount for the regeneration air becomes larger than that of the pre-cool system by heat exchange with the high temperature air after the adsorption and dehumidification, which results in more energy saving. Moreover, you may apply the system which uses a pre after-cooler by each embodiment.

  Further, when the load is high, the rotational speed is increased to use as a total heat exchanger, so that the thermal energy for heating the regeneration air becomes unnecessary. When it is used as a total heat exchanger, after-cool heat energy is required, which of the desiccant type and the total heat exchanger will save energy differs depending on conditions such as load, temperature and humidity, and refrigerator efficiency. However, under the conditions of a general office building etc., the total heat exchanger + after-cool method is more energy saving.

  In the middle period, since the outside temperature and humidity conditions are loose, it is often possible to dehumidify to the target humidity even when the dual purpose rotor 18 is used as a desiccant rotor. In particular, when the indoor sensible heat load is small, if the cooling and dehumidification is performed by aftercooling, the room temperature drops too much and a reheat load is generated, so the desiccant rotor type is more energy saving.

  Further, in the air conditioning system of the present embodiment, the combined rotor 18 is switched between the total heat exchanger and the desiccant rotor by changing the number of revolutions of the rotor, and the return air RA is mixed before after-cool. Thus, appropriate operation control can be performed according to operating conditions such as weather conditions and load conditions.

  Furthermore, the first air conditioner 10 processes latent heat load, the second air conditioner 20 performs latent heat sensible heat separation air conditioning that processes only sensible heat, and the first air conditioner 10 cools and dehumidifies at 7 ° C. of common cold water. Mix the return air RA and cool and dehumidify as you can. Thereby, the first air conditioner 10 uses 7 ° C. cold water, but the second air conditioner 20 can use high temperature cold water of 14 ° C. to 16 ° C., and can improve the efficiency of the refrigerator Become.

  In the ordinary desiccant cycle, heat exchange with low temperature and low humidity outside air was difficult in winter, but by using the rotor as a total heat exchanger, heat exchange in winter becomes possible, and annual energy efficiency improves.

  The present invention is not limited by this embodiment. That is, although a lot of specific detailed contents are included for illustration in describing the embodiment, various variations and changes may be added to the detailed contents by those skilled in the art.

1 ... Air conditioning system 10 ... 1st air conditioner 11 ... Desiccant rotor (dehumidifiable rotor)
12 ... sensible heat rotor 13 ... after cooler 14 ... regeneration heater 16 ... total heat exchange rotor (dehumidifiable rotor)
18 ... Combined rotor (dehumidifiable rotor)
19 Pre-cooler 20 Second air conditioner 21 Cooling coil (cooling member)
22 ... fan 30 ... room 31 ... flow path 32 ... adjustment damper 50 ... mixing unit

Claims (8)

With a dehumidifiable rotor that dehumidifies outside air,
An aftercooler that cools outside air that has passed through the dehumidifiable rotor and blows it to the room side;
A mixing unit that mixes the return air blown from the room into the outside air before being blown to the aftercooler through the dehumidifiable rotor;
A cooling member to which outside air blown from the aftercooler and return air blown from the room are blown;
An air conditioning system comprising: The air conditioning system according to claim 1, further comprising a regenerative heater that heats the return air blown from the living room and blows the air to the dehumidifiable rotor. The sensible heat rotor according to claim 2, further comprising: a sensible heat rotor configured to cool outside air before being mixed in the mixing section through the dehumidifiable rotor, by sensible heat of return air before being blown to the regeneration heater. Air conditioning system. The air conditioning system according to any one of claims 1 to 3, further comprising a fan for supplying the air cooled by the cooling member to the living room. The air conditioning system according to any one of claims 1 to 4, wherein the dehumidifiable rotor comprises a desiccant rotor. The first step of dehumidifying the outside air with a dehumidifiable rotor,
A second procedure for mixing the return air blown from the room with the dehumidified air outside;
Third step of cooling and dehumidifying the outside air mixed with the return air,
A fourth procedure in which the return air blown from the room is cooled and dehumidified outside air is further mixed;
A fifth step of cooling the outside air, to which the return air is further mixed;
A sixth procedure for supplying fresh air to the room;
An air conditioning method characterized by having. A seventh procedure for heating the return air blown from the room;
An eighth step of drying the dehumidifiable rotor in which the heated return air is dehumidified in the first step;
The air conditioning method according to claim 6 , characterized in that: Conditioning according to claim 7, characterized in that it comprises the steps outside air dehumidified in the first step, is cooled by heat exchange with the sensible heat of the previous return air being heated in said seventh step Method.

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