JP2008116086A - Dehumidification air conditioning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehumidification air conditioning device capable of reducing its dimension and costs by reducing the number of components of a basic device, and performing an energy-saving operation while keeping its dehumidification air conditioning capacity. <P>SOLUTION: This dehumidification air conditioning device comprises a processing-side flow channel 14, a regeneration-side flow channel 16 in which the air for regeneration is distributed as the counterflow of the processing-side flow channel 14, a dehumidifying rotor 30, a sensible heat exchanger 32, a heating means 42 for heating the air for regeneration, and a circulation flow channel 44 for circulating a part of the processed air processed by the dehumidifying rotor and the sensible heat exchanger to the processing-side flow channel at an upstream side with respect to the dehumidifying rotor. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dehumidifying air conditioner, and more particularly, to a dehumidifying air conditioner that dehumidifies outside air supplied to a general office building or a hospital facility.

  In building facilities such as general offices and hospital facilities, necessary outside air is introduced according to the number of people in the room by the Building Management Law. In the central type air conditioning equipment, an outside air processing air conditioner is installed, and the necessary outside air is cooled and dehumidified to adjust the temperature and then supplied to the room. However, in recent years, regulations on energy consumption of building facilities have been strengthened due to revisions to the Energy Conservation Law, and efforts to reduce energy consumption such as cogeneration facilities are progressing. In order to improve the efficiency of this cogeneration, it is necessary to effectively use the low-level heat generated, and dehumidifying air conditioners that dehumidify the outside air using a low-temperature heat source have attracted attention.

  However, in this type of dehumidifying air conditioner, dehumidifying performance is limited in hot water of about 80 ° C. obtained from cogeneration facilities, and therefore dehumidifies to a sufficient humidity to be supplied indoors under the summer peak outdoor air conditions. It was difficult.

  In order to solve this problem, Patent Document 1 discloses a dehumidifying air conditioner that improves dehumidifying performance by repeating dehumidification and cooling using a plurality of dehumidifying rotors.

  The dehumidifying air conditioner disclosed in Patent Document 1 is shown in FIG. The air flowing inside the dehumidifying air conditioner is divided into two types: indoor intake outdoor air, which is dehumidified air, and regeneration air, which is heated at a high temperature and used for moisture release. The apparatus includes two dehumidification rotors (dehumidification rotor 1 and dehumidification rotor 2), two sensible heat exchange rotors (sensible heat exchange rotor 3 and sensible heat exchange rotor 4), and two heaters (heater 5 and heater 6). And an evaporative cooler 7 and an evaporative cooler 8.

  The indoor intake outdoor air passes through the treatment area of the dehumidification rotor 2 by the blowing means and is dehumidified in the first stage, and then is sensible heat exchanged with the regeneration air in the sensible heat exchange rotor 4 and cooled. However, when the outdoor air condition is close to the summer peak state, the first stage of dehumidification is not sufficient, so that it passes through the dehumidification rotor 1 and the sensible heat exchange rotor 3 to become air of lower humidity in the room. It is aired.

  On the other hand, the regeneration air is introduced into the sensible heat exchange rotor 3 by the blowing means, and after sensible heat exchange with the indoor intake air, it is heated by a low temperature heat source supplied from a cogeneration facility such as hot water, Introduced into the playback area. The heated regeneration air regenerates the dehumidification rotor 1 and becomes highly dehumidified air and is discharged out of the system. Similarly, the sensible heat exchange rotor 4 and the dehumidifying rotor 2 perform sensible heat exchange and regeneration.

Therefore, according to the dehumidifying air conditioner disclosed in Patent Document 1, the dehumidifying device is connected to two stages in series to dehumidify the summer outdoor air to an amount of water that can be supplied indoors even when the heat source is at a low temperature. It becomes possible.
JP 2001-272055 A

  However, the configuration of the conventional dehumidifying air conditioner disclosed in Patent Document 1 requires a plurality of dehumidifying rotors and sensible heat exchange rotors, which increases the cost of manufacturing the equipment and increases the equipment dimensions and requires an installation area. There was a problem. In addition, since there are a plurality of components, it is necessary to heat the room air a plurality of times, and there is a concern that the amount of heat source used increases.

  The present invention has been made in view of such circumstances, and eliminates the above-mentioned drawbacks, reduces the number of components of the basic device, achieves downsizing and cost reduction, and maintains the dehumidifying air conditioning capability. An object of the present invention is to provide a dehumidifying air conditioner capable of energy saving operation.

  In order to achieve the above-mentioned object, the invention according to claim 1 forms a processing side flow path in which processing air supplied into the room is supplied by a processing side fan and a counter flow of the processing side flow path. In this way, the regeneration-side flow path through which the regeneration air is sent by the regeneration-side fan, the processing-side flow path, and the regeneration-side flow path is provided, and the internal dehumidifying material is rotated by the rotation. A dehumidification rotor that contacts the processing air in the path and contacts the regeneration air in the regeneration-side flow path, and a process that is provided across the processing-side flow path and the regeneration-side flow path and is dehumidified by the dehumidification rotor A sensible heat exchanger for exchanging sensible heat between the air for regeneration and the air for regeneration, and a heating means provided in the regeneration side flow path between the dehumidification rotor and the sensible heat exchanger for heating the air for regeneration And part of the processing air processed by the dehumidification rotor and sensible heat exchanger Provides a dehumidifying air-conditioning apparatus, characterized in that a circulation channel for circulating the processing side flow path of the upstream side of the dehumidifying rotor.

  According to the first aspect of the present invention, a part of the processing air processed by the dehumidification rotor and the sensible heat exchanger is returned to the processing side flow path upstream from the dehumidification rotor by the circulation flow path. The humidity of the processing air upstream from the rotor can be reduced. Therefore, low-humidity processing air can be produced by dehumidifying with the dehumidifying rotor.

  Further, according to the invention of claim 1, high dehumidification performance can be obtained even with a simple apparatus configuration of one dehumidification rotor and one sensible heat exchanger. Therefore, the number of parts of the device configuration can be reduced, and the size and cost of the device can be reduced.

  According to a second aspect of the present invention, in the first aspect, the constant flow damper that controls the flow rate of the processing air supplied from the processing side flow path into the chamber and the circulation flow path are provided, and the circulation flow is provided. Controls the circulating flow rate operation damper that controls the flow rate of processing air flowing through the passage, the temperature and humidity sensor that measures the temperature and humidity of the processing air processed by the sensible heat exchanger, and the rotational speed of the processing side fan A processing-side inverter, and the circulation flow rate operation damper and the processing-side inverter are operated in accordance with a measured value of the temperature and humidity sensor and an operation amount of the constant flow damper.

  According to the invention of claim 2, since the circulation flow rate is adjusted based on the measurement value of the temperature / humidity sensor, the processing air can be controlled to a desired temperature / humidity. Further, according to the invention of claim 2, since the constant flow damper is provided and the processing side inverter is operated, even when the circulating flow rate is adjusted, the processing air having a predetermined flow rate is supplied into the room. be able to. Therefore, according to the second aspect of the present invention, it is possible to supply processing air having a predetermined flow rate at a desired temperature and humidity into the room.

  According to a third aspect of the present invention, in the second aspect, the apparatus includes a pressure sensor that measures a pressure of the processing air supplied into the room, and the processing-side inverter is controlled based on a measurement value of the pressure sensor. It is characterized by.

  According to the invention of claim 3, since the pressure of the processing air supplied into the room is measured to control the processing-side inverter and the amount of processing air supplied is adjusted, the predetermined flow rate in the room The processing air can be reliably supplied.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the processing-side flow path is divided into a plurality of flow paths, and the processing air flowing through the plurality of flow paths is respectively in the dehumidification rotor and the sensible surface. While passing through the heat exchanger, an outlet of at least one of the divided channels is connected to an inlet of another channel through the circulation channel.

  According to the invention of claim 4, the processing-side flow path is divided into a plurality of flow paths, and the outlet part of the one flow path and the inlet part of the other flow path are connected by the circulation flow path. Therefore, the processing air passes through one flow path and then flows through the other flow path through the circulation flow path. Therefore, a part of the processing air is repeatedly supplied to the dehumidification rotor and the sensible heat exchanger for processing. Therefore, the dehumidifying performance can be enhanced, and processing air with lower humidity can be produced.

  In addition, it is preferable that a circulation flow path connects the exit part of a downstream flow path, and the inlet part of an upstream flow path with respect to the rotation direction of a dehumidification rotor. As a result, the processing air dehumidified in the downstream flow path flows into the upstream flow path having a high dehumidification performance, so that the dehumidification performance in the upstream flow path can be further improved, and processing at a lower humidity can be performed. Air can be produced.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the circulation flow path is provided with a cooling means for cooling the processing air flowing through the circulation flow path.

  According to the invention of claim 5, since the processing air flowing through the circulation channel is cooled, the temperature of the processing side air sent to the dehumidification rotor can be lowered. Therefore, the dehumidification performance in the dehumidification rotor can be further enhanced.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, a regeneration-side inverter that controls the rotation speed of the regeneration-side fan is provided, and the regeneration-side inverter is controlled according to the rotation speed of the processing-side fan. It is characterized by being.

  According to the invention of claim 6, since the air volume of the regeneration air is adjusted according to the air volume of the processing air, it is possible to perform more energy saving operation.

  According to the dehumidifying air conditioner according to the present invention, it is possible to provide a dehumidifying air conditioner having high dehumidifying performance even in a simple apparatus structure including one each of a dehumidifying rotor and a sensible heat exchanger.

  In addition, according to the dehumidifying air-conditioning apparatus of the present invention, high-performance dehumidifying performance is realized with a small size and low cost, and furthermore, energy consumption is reduced by monitoring the outlet state and changing the operating state, thereby reducing the amount of heat source used. An operable dehumidifying air conditioner can be realized.

  Hereinafter, preferred embodiments of a dehumidifying air conditioner according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic configuration diagram showing a first embodiment of a dehumidifying air conditioner according to the present invention.

  As shown in FIG. 1, the dehumidifying air-conditioning apparatus 10 according to the present embodiment includes a housing 12, and the inside of the housing 12 is divided into a processing-side flow path 14 and a regeneration-side flow path 16.

  The processing side flow path 14 is a flow path for taking in the processing air and blowing it into the indoor space (not shown). A processing air intake 18 and a processing air outlet 20 are formed on both side surfaces of the housing 12, and a processing side fan 22 is provided in the vicinity of the processing air intake 18 inside the housing 12. ing. By this processing side fan 22, processing air is fed into the processing side flow path 14 from the processing air intake port 18 and flows toward the processing air outlet 20.

  The regeneration-side channel 16 is a channel that takes in and discharges the regeneration air. A regeneration air intake 24 and a regeneration air outlet 26 are formed on both side surfaces of the housing 12, and a regeneration-side fan 28 is provided in the vicinity of the regeneration air outlet 26 inside the housing 12. . By this regeneration side fan 28, regeneration air is sent from the regeneration air intake port 24 to the regeneration side flow path 16 and flows toward the regeneration air outlet 26. In addition, as the air for regeneration, outside air may be used, or exhaust from the room may be used.

  A dehumidification rotor 30 and a sensible heat exchanger 32 are arranged in the housing 12 in order from the side closer to the processing air intake 18 and the regeneration air outlet 26.

  The dehumidification rotor 30 has a disk shape, and the side surface portion (disk surface) is arranged so as to be orthogonal to the flow of air passing through the processing side flow path 14 and the regeneration side flow path 16.

  The dehumidifying rotor 30 is formed by forming a honeycomb nonwoven fabric impregnated with a dehumidifying agent such as lithium chloride or silica gel into a rotor shape, and is rotated by being driven by a motor (not shown).

  Further, the dehumidification rotor 30 moves between the processing side channel 14 and the regeneration side channel 16 while rotating in a direction orthogonal to the air flow of the processing side channel 14 and the regeneration side channel 16, In the processing side flow path 14, the regeneration air taken in from the processing air intake port 18 is contacted to dehumidify the regeneration air, while in the regeneration side flow path 16, the regeneration air heated in contact with the regeneration air is heated. Played. That is, the dehumidification rotor 30 has a dehumidification region 34 for dehumidifying the processing air in the processing side flow path 14 and a regeneration region 36 that is heated and regenerated in contact with the regeneration air heated in the regeneration side flow path 16. ing.

  On the other hand, the sensible heat exchanger 32 has a disk shape, and its side surface portion (disk surface) is arranged so as to be orthogonal to the air flow passing through the processing side channel 14 and the regeneration side channel 16. Yes.

  The sensible heat exchanger 32 is made of a metal material such as aluminum in a rotor shape, and is rotated by being driven by a motor (not shown).

  Further, like the dehumidification rotor 30, the sensible heat exchanger 32 contacts the regeneration air in the regeneration side flow path 16 while rotating between the processing side flow path 14 and the regeneration side flow path 16 to regenerate. While recovering cold heat from the working air, the collected cold heat is applied to the dehumidified processing air in the processing-side flow path 14 to exchange heat between the processing air and the regeneration air. That is, the sensible heat exchanger 32 includes a heat release area 38 that collects cold heat from the regeneration side flow path 16 and the regeneration air that passes through, and a cooling area 40 that performs heat exchange with the process air dehumidified in the process side flow path 14. have.

  A heater (heating means) 42 is provided inside the regeneration-side flow path 16 sandwiched between the dehumidification rotor 30 and the sensible heat exchanger 32, and the heater 42 allows the heat radiation area 38 of the sensible heat exchanger 32 to be changed. The passed regeneration air is heated to a predetermined temperature.

  The dehumidifying air conditioner 10 according to the present embodiment is provided with a circulation channel 44. One end of the circulation channel 44 is connected to the processing air intake port 18, and the other end of the circulation channel 44 is connected to the processing air outlet 20. Then, part of the processing air processed by the sensible heat exchanger 32 is sent again into the processing-side flow path 14 upstream of the dehumidifying rotor 30.

  The circulation flow path 44 is provided with a circulation flow rate operation damper 46, and the flow rate of the processing air flowing through the circulation flow path 44 can be controlled by the circulation flow rate operation damper 46.

  A temperature / humidity sensor 48 is provided between the sensible heat exchanger 32 and the processing air outlet 20 in the processing side flow path 14, and the temperature of the processing air processed in the processing side flow path 14 and Detect humidity.

  The processing air outlet 20 and the room (not shown) are connected via a line 49, and a constant flow damper 50 is provided in the line 49. The constant flow damper 50 controls the amount of processing air supplied to the room to a predetermined constant value.

  A processing side inverter 52 is connected to the processing side fan 22, and the rotational speed of the processing side fan 22 is controlled by the processing side inverter 52.

  The processing-side inverter 52 is electrically connected with a temperature / humidity sensor 48 and a constant flow damper 50. The processing-side inverter 52 allows the processing-side inverter 52 to detect the temperature / humidity sensor 48 and the operation amount of the constant flow damper. The rotational speed of the processing side fan 22 is controlled.

  In addition, a temperature / humidity sensor 48 and a constant flow damper 50 are electrically connected to the circulation flow operation damper 46, and the circulation flow operation is performed according to the detection result of the temperature / humidity sensor 48 and the operation amount of the constant flow damper. The opening degree of the damper 46 is adjusted.

  Next, a case where the indoor space is dehumidified using the dehumidifying air conditioner according to the present embodiment will be described.

  In the processing side flow path 14, the processing side fan 22 is driven, so that the processing air is fed from the processing air intake port 18 into the processing side flow path 14. The air taken in from the processing air intake 18 passes through the dehumidifying region 34 of the dehumidifying rotor 30, so that moisture contained in the air is adsorbed by the dehumidifying material in the dehumidifying rotor 30. The dehumidified air is heated by the adsorption heat generated at the time of adsorption, and is cooled by exchanging sensible heat in the cooling region of the sensible heat exchanger 32 and is supplied into the room from the processing air outlet 20. The

  On the other hand, in the regeneration side flow path 16, the regeneration air is sent from the regeneration air intake port 24 to the regeneration side flow path 16 by driving the regeneration side fan 28. The regeneration air taken into the regeneration side channel 16 passes through the heat radiation area 38 of the sensible heat exchanger 32, is heated by exchanging sensible heat in the sensible heat exchanger 32, and dehumidified in the heater 42. The rotor 30 is heated to a temperature required to remove moisture in the regeneration region 36 and passes through the dehumidifying rotor 30. Since the dehumidifying rotor 30 is rotating, the dehumidifying material in the dehumidifying rotor 30 circulates in the processing side flow path 14 and the regeneration side flow path 16, and the regeneration air heated in the regeneration side flow path 16 The moisture adsorbed on the dehumidifying material is removed in the processing side flow path 14 to regenerate the dehumidifying material. The regeneration air is cooled by the heat of vaporization generated at that time and discharged from the regeneration air outlet 26 to the outside.

  By the way, in the present embodiment, a part of the processing air processed by the dehumidification rotor 30 and the sensible heat exchanger 32 is sent again to the processing side channel 14 upstream of the dehumidification rotor 30 by the circulation channel 44. ing. Therefore, the humidity of the processing air upstream from the dehumidifying rotor 30 can be reduced, and dehumidifying with the dehumidifying rotor 30 makes it possible to produce low-humidity air.

  Further, according to the present embodiment, high dehumidification performance can be obtained even with a simple apparatus configuration of one dehumidification rotor 30 and one sensible heat exchanger 32. Therefore, the number of parts of the device configuration can be reduced, and the size and cost of the device can be reduced.

  Furthermore, according to the present embodiment, since the circulation flow rate is adjusted based on the measured value of the temperature / humidity sensor 48, the processing air can be controlled to a desired temperature / humidity. Since the constant flow damper 50 is provided and the processing side inverter 52 of the processing side fan 22 is operated, even when the circulating flow rate is adjusted, predetermined diversion processing air is supplied into the room. Can do. As a result, it is possible to supply processing air at a predetermined flow rate at a desired temperature and humidity into the room.

  Next, a second embodiment of the dehumidifying air conditioner according to the present invention will be described. In addition, the same code | symbol is attached | subjected about the part which is common in the said embodiment, and the detailed description is abbreviate | omitted.

  Compared with the first embodiment shown in FIG. 1, the dehumidifying air conditioner 10A according to the second embodiment shown in FIG. 2 has a constant flow rate in the flow path where the air processed in the processing side flow path 14 reaches the indoor space. The difference is that a pressure sensor 54 is provided between the flow damper 50 and the processing-side flow path 14. The pressure sensor 54 is electrically connected to the processing side inverter 52. Then, the processing-side inverter 52 controls the inflow amount of processing air fed into the processing-side flow path 14 by controlling the rotational speed of the processing-side fan 22 based on the detection result of the pressure sensor 54.

  According to the dehumidifying air-conditioning apparatus 10A according to the present embodiment, the pressure of the processing air supplied into the room is measured to control the processing-side inverter 52 of the processing-side fan 22, and the amount of processing air supplied is reduced. Since the adjustment is performed, it is possible to reliably supply a predetermined amount of processing air into the room.

  The dehumidifying air conditioner 10B of the third embodiment shown in FIG. 3 is different from the first embodiment shown in FIG. 1 in that a cooling means 56 is provided in the middle of the circulation flow path 44B. . The cooling means 56 cools the processing air flowing through the circulation flow path 44B.

  According to the dehumidifying air-conditioning apparatus 10B according to the present embodiment, the temperature of the processing air that flows through the circulation flow path 44B and is sent again to the processing-side flow path 14 can be lowered. Can be increased. Therefore, the energy saving operation can be performed while maintaining the dehumidifying air conditioning capability.

  Compared to the first embodiment shown in FIG. 1, the dehumidifying air conditioner 10 </ b> C of the fourth embodiment shown in FIG. 4 has a processing side flow path 14 according to the first embodiment having a high-humidity processing side flow. It is divided into a path 14A and a low-humidity processing side channel 14B, and the outlet of the high-humidity processing side channel 14A is connected to the inlet of the low-humidity processing side channel 14B via the circulation channel 44C. The connection is different. The high-humidity processing side channel 14 </ b> A is provided downstream of the low-humidity processing side channel 14 </ b> B with respect to the rotation direction of the dehumidification rotor 30.

  Further, the dehumidification rotor 30C includes a high humidity air dehumidifying region 34A through which the processing air flowing through the high humidity processing side flow path 14A and a low humidity through which the processing air flowing through the low humidity processing side flow path 14B passes. It has a working air dehumidifying region 34B.

  Further, in the sensible heat exchanger 32C, the high humidity air cooling region 40A through which the regeneration air flowing through the high humidity processing side flow path 14A passes and the regeneration air flowing through the low humidity processing side flow path 14B pass through. It has an air cooling area 40B for low humidity.

  According to the dehumidifying air conditioner 10C according to the present embodiment, the processing-side flow path 14 is divided into the high-humidity processing-side flow path 14A and the low-humidity processing-side flow path 14B, and the high-humidity processing-side flow path. Since the outlet portion of 14A and the inlet portion of the low-humidity processing side channel 14B are connected via the circulation channel 44C, the processing air passes through the high-humidity processing side channel 14A and then circulates. The low-humidity processing side flow path 14B flows through the path 44C. Therefore, a part of the processing air is supplied twice to the dehumidification rotor 30C and the sensible heat exchanger 32C for processing. As a result, the dehumidifying performance can be enhanced, and processing air with lower humidity can be produced.

  The dehumidifying air conditioner 10D of the fifth embodiment shown in FIG. 5 is different from the fourth embodiment shown in FIG. 4 in that a cooling means 56D is provided in the middle of the circulation flow rate 44D.

  According to the dehumidifying air conditioner 10D according to the present embodiment, the temperature of the processing air flowing through the circulation flow path 44D and fed into the low humidity processing side flow path 14B can be lowered, so that the dehumidifying air conditioning apparatus itself dehumidifies. The performance can be further improved. Thereby, since the dehumidification performance in dehumidification rotor 30D can further be improved, an energy-saving operation can be performed, maintaining dehumidification air-conditioning capability.

  The dehumidifying air conditioner 10E of the sixth embodiment shown in FIG. 6 is different from the fourth embodiment shown in FIG. 4 in that an exhaust-side inverter 58 is provided. The exhaust-side inverter 58 is electrically connected to the processing-side inverter 52 and controls the rotation speed of the regeneration-side fan 28 according to the rotation speed of the processing-side fan 22.

  According to the dehumidifying air conditioner 10E according to the present embodiment, since the air volume of the regeneration air is adjusted according to the air volume of the processing air, further energy saving operation can be performed while maintaining the dehumidifying air conditioning capacity.

  The present invention is not limited to the above-described embodiment, and various changes can be made.

  For example, in the above embodiment, the processing-side flow path is divided into a high-humidity processing-side flow path and a low-humidity processing-side flow path. Although the example in which the inlet portion of the path is connected via the circulation flow path has been described, the present invention is not limited to this, and the process-side flow path is divided into two or more flow paths, and the plurality of divided flow paths are divided. The outlet part of at least one flow path of the path may be connected to the inlet part of another flow path via the circulation flow path.

The schematic block diagram which shows 1st Embodiment of the dehumidification air-conditioning apparatus which concerns on this invention. The schematic block diagram which shows 2nd Embodiment of the dehumidification air-conditioning apparatus which concerns on this invention. The schematic block diagram which shows 3rd Embodiment of the dehumidification air conditioner which concerns on this invention. The schematic block diagram which shows 4th Embodiment of the dehumidification air-conditioning apparatus which concerns on this invention. The schematic block diagram which shows 5th Embodiment of the dehumidification air-conditioning apparatus which concerns on this invention. The schematic block diagram which shows 6th Embodiment of the dehumidification air-conditioning apparatus which concerns on this invention. Schematic configuration diagram showing a dehumidifying air conditioner in the prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Dehumidification air conditioner, 12 ... Housing | casing, 14 ... Processing side flow path, 16 ... Regeneration side flow path, 18 ... Processing air intake port, 20 ... Processing air outlet, 22 ... Processing side fan, 24 ... Regeneration Air intake port, 26 ... Regeneration air outlet, 28 ... Regeneration fan, 30 ... Dehumidification rotor, 32 ... Sensible heat exchanger, 34 ... Dehumidification region, 36 ... Regeneration region, 38 ... Heat dissipation region, 40 ... Cooling region , 42 ... heating means, 44 ... circulation flow path, 46 ... circulation flow rate operation damper, 48 ... temperature / humidity sensor, 50 ... constant flow rate damper, 52 ... processing side inverter, 54 ... pressure sensor, 56 ... cooling means, 58 ... Playback inverter

Claims (6)

A processing-side flow path through which processing air supplied into the room is sent by a processing-side fan;
A regeneration side passage through which regeneration air is sent by a regeneration side fan so as to form a counter flow of the processing side passage;
Provided across the processing-side flow path and the regeneration-side flow path, and by rotating, the internal dehumidifier contacts the processing air in the processing-side flow path and contacts the regeneration air in the regeneration-side flow path A dehumidifying rotor,
A sensible heat exchanger which is provided across the processing side flow path and the regeneration side flow path and exchanges sensible heat between the processing air dehumidified by the dehumidification rotor and the regeneration air;
A heating means provided in a regeneration-side flow path between the dehumidifying rotor and the sensible heat exchanger, and heating the regeneration air;
A circulation flow path for circulating a part of the processing air processed by the dehumidification rotor and the sensible heat exchanger to the treatment side flow path upstream of the dehumidification rotor;
A dehumidifying air conditioner comprising: A constant flow damper for controlling the flow rate of processing air supplied from the processing side flow path into the room;
A circulation flow rate operation damper which is provided in the circulation flow path and controls the flow rate of the processing air flowing through the circulation flow path;
A temperature and humidity sensor for measuring the temperature and humidity of the processing air processed by the sensible heat exchanger;
A processing-side inverter that controls the rotational speed of the processing-side fan,
2. The dehumidifying air conditioner according to claim 1, wherein the circulation flow rate operation damper and the processing-side inverter are operated according to a measurement value of the temperature and humidity sensor and an operation amount of the constant flow damper. A pressure sensor for measuring the pressure of the processing air supplied into the chamber;
The dehumidifying air conditioner according to claim 2, wherein the processing-side inverter is controlled based on a measurement value of the pressure sensor. The processing-side flow path is divided into a plurality of flow paths, and the processing air flowing through the plurality of flow paths passes through the dehumidification rotor and the sensible heat exchanger, respectively.
The outlet part of at least one flow path of the divided flow paths is connected to the inlet part of another flow path via the circulation flow path. The dehumidifying air conditioner described in the paragraph.   The dehumidifying air conditioner according to any one of claims 1 to 4, wherein the circulation channel is provided with cooling means for cooling the processing air flowing through the circulation channel. A regeneration-side inverter that controls the rotation speed of the regeneration-side fan;
The dehumidifying air conditioner according to any one of claims 1 to 5, wherein the regeneration-side inverter is controlled in accordance with a rotation speed of the processing-side fan.

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