JP2013145065A - Air conditioning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air conditioning apparatus that can prevent corrosion without electro-coating and the like.SOLUTION: An air conditioning apparatus includes: a refrigerating cycle device for connecting a compressor 1 for applying pressure on a refrigerant, a condenser 2, a first throttle device 3, and a first cooling device 4 through refrigerant piping, and configuring a refrigerant circuit; a water content adsorption/desorption means 5 supporting an adsorbent, adsorbing a water content in air to the adsorbent in a water content adsorbing air passage 11, and desorbing the water content adsorbed from an adsorbing material in a water content desorbing air passage 10; a first blower 8 for forming an air flow passing through the water content desorbing air passage 10; and a second blower 9 for forming the air flow passing through the water content adsorbing air passage 11, wherein the condenser 2 is arranged more upward than the water content desorption means 5 with respect to the air flow at the water content desorbing air passage 10, and the first cooling device 4 is arranged more downward than the water content desorption means 5 with respect to the air flow.

Description

  The present invention relates to an air conditioner that cools a target space or the like. For example, this is to prevent corrosion of equipment installed in an environment where corrosive components are generated.

  For example, in an air conditioner using a refrigeration cycle, a pipe through which a refrigerant passes may be corroded when time passes. If the pipe is corroded and a hole is formed, refrigerant leakage including refrigeration oil occurs. In addition, a product produced by corrosion may be released into the space and adhere to a cooling target or the like. For this reason, conventionally, for example, there has been an electrodeposition coating applied to the surface of a heat exchanger of an air conditioner so that corrosive components do not touch the metal surface (see, for example, Patent Document 1).

JP 2003-138399 A

  In the conventional air conditioner as described above, an electrodeposition coating is applied to the heat exchanger in advance so as to have a corrosion prevention function (corrosion prevention function). However, due to the nature of the coating, if there is an insufficient part of the coating, peeling of the coating, etc., the anti-corrosion function will be reduced, and there is a possibility that the corrosion will proceed mainly in the part where the coating is insufficient.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an air conditioner capable of preventing corrosion without applying an electrodeposition coating or the like.

  An air conditioner according to the present invention includes a refrigerating cycle device that forms a refrigerant circuit by connecting a compressor, a condenser, a first throttling device, and a first cooler that pressurize a refrigerant through a refrigerant pipe, and an adsorbent. In the moisture adsorption air passage through which the air for adsorbing moisture is adsorbed, the moisture in the air is adsorbed by the adsorbent, and in the moisture desorption air passage through which the air for desorbing the adsorbed moisture passes. Moisture adsorption / desorption means for desorbing moisture adsorbed from the material, a first blower that forms a flow of air that passes through the moisture desorption air passage, and a second blower that forms a flow of air that passes through the moisture adsorption air passage And a condenser is disposed upstream of the moisture adsorption / desorption means with respect to the air flow, and a first cooler is disposed downstream of the moisture adsorption / desorption means.

  According to the air conditioner of the present invention, when the moisture adsorbing / desorbing means desorbs the moisture from the air in the moisture desorbing air passage and supplies it to the first cooler, and the first cooler cools the air. By washing the surface of the first cooler with condensed moisture, it is possible to prevent corrosive components from staying on the surface of the first cooler, and to prevent the corrosion of the first cooler without coating. Can do.

It is a figure which shows the structure of the air conditioning apparatus in Embodiment 1 of this invention. It is a figure which shows the structure of the water | moisture-content adsorption / desorption means 5 grade | etc., In Embodiment 1 of this invention. It is a figure which shows the flow of control in the air conditioning apparatus of Embodiment 2 of this invention. It is a figure which shows the structure of the air conditioning apparatus in Embodiment 3 of this invention. It is a schematic diagram showing the moisture adsorption characteristics of the adsorbent carried on the moisture adsorption / desorption means 5. It is a figure which shows the structure of the air conditioning apparatus in Embodiment 4 of this invention.

Embodiment 1 FIG.
1 is a diagram showing a configuration of an air-conditioning apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, in the air conditioner of the present embodiment, a compressor 1, a condenser 2, a first throttling device 3, and a first cooler 4 are connected to form a refrigerant circuit, and a refrigeration cycle is performed. It has a refrigeration cycle device that performs air conditioning in the room used (air conditioning target space). This air conditioner mainly performs dehumidification and cooling of the air-conditioning target space.

  The compressor 1 sucks the refrigerant, compresses it, and discharges it in a high temperature / high pressure state. Here, it is desirable that the compressor 1 is constituted by a compressor of a type that can adjust the discharge amount of the refrigerant, for example, by controlling the rotational speed of an inverter circuit or the like. The condenser 2 is a heat exchanger that exchanges heat between air in the room (hereinafter referred to as room air) and the refrigerant to condense and liquefy the refrigerant. Here, in order to supply air having a high temperature (low relative humidity) to the moisture adsorption / desorption means 5, the air is heated by exchanging heat between the indoor air and the refrigerant. The first expansion device 3 adjusts the flow rate of the refrigerant and expands it by reducing the pressure. The first cooler 4 is a heat exchanger that performs heat exchange between room air and the refrigerant, evaporates the refrigerant, and cools the air.

  FIG. 2 is a diagram showing the configuration of the moisture adsorption / desorption means 5 and the like according to Embodiment 1 of the present invention. The moisture adsorbing / desorbing means 5 of the present embodiment is constituted by, for example, a cylindrical dehumidifying rotor (desiccant rotor) in order to supply moisture adsorbed from room air to the first cooler 4. The dehumidifying rotor has pores such as zeolite, silica gel, activated carbon, mesoporous silica, etc., and a dehumidifying agent capable of adsorbing moisture in the air by capillary condensation inside the cylinder so that moisture from air with high relative humidity can be absorbed. Can be adsorbed. In addition, moisture can be desorbed (released) into air having a low relative humidity. Therefore, in the present embodiment, the moisture adsorption / desorption means 5 can be rotated in the circumferential direction around the rotor shaft 12. The moisture adsorbing / desorbing means 5 is divided into a desorbing portion 5a located in the moisture desorbing air passage 10 through which air having a low relative humidity passes and an adsorbing portion 5b located in the moisture adsorbing air passage 11 through which air having a high relative humidity passes. Like that. The adsorption / desorption will be described later. The moisture adsorption / desorption means driving device 6 has a motor or the like, and rotates the moisture adsorption / desorption means 5 in the circumferential direction at a constant speed, for example. For this reason, the adsorbent carried by the moisture adsorption / desorption means 5 is located, for example, in the moisture desorption air passage 10 or the moisture adsorption air passage 11 every predetermined time, and repeats the adsorption and desorption (release) of moisture. .

  The squeeze plate 7 is a flat plate for separating the moisture adsorption air passage 11 and the water desorption air passage 10. Moreover, the 1st air blower 8 ventilates the water | moisture-content desorption wind path 10, and forms the flow which passes indoor air through the condenser 2, the water | moisture-content adsorption / desorption means 5, and the 1st cooler 4, and sends it indoors. By passing air through the condenser 2 and the first cooler 4, heat exchange with the refrigerant is promoted. The 2nd air blower 9 ventilates the water | moisture-content adsorption | suction air path 11, and forms the flow which passes indoor air through the moisture adsorption / desorption means 5, and sends it indoors. The moisture desorption air passage 10 is an air passage for supplying the first cooler 4 with water released (desorbed) into the air by the moisture absorption / desorption means 5. The moisture adsorption air passage 11 is an air passage for adsorbing moisture supplied from the air to the first cooler 4 by the moisture adsorption / desorption means 5.

  Next, the operation of the present embodiment will be described. First, the operation related to the refrigerant circuit will be described based on the flow of the refrigerant. The high-temperature and high-pressure gas refrigerant discharged from the compressor 1 enters the condenser 2 through the discharge pipe. The gas refrigerant guided to the condenser 2 is liquefied by heat exchange with room air by the first blower 8. The liquefied refrigerant (liquid refrigerant) is depressurized by the first expansion device 3 and becomes a two-phase refrigerant and enters the first cooler 4. The two-phase refrigerant guided to the cooler repeats a cycle in which the first blower 8 exchanges heat with the air that has passed through the condenser 2 and the moisture adsorption / desorption means 5 to gasify and return to the compressor 1.

  Next, the operation | movement which linked the refrigerant circuit and the moisture adsorption / desorption means 5 is demonstrated. The room air that has flowed into the moisture adsorption air passage 11 by the second blower 9 passes through the moisture adsorption air passage 11 and is sent into the room again. At this time, the moisture adsorption / desorption means 5 adsorbs moisture in the room air passing through the moisture adsorption air passage 11 in the adsorption portion 5b.

  On the other hand, the room air that has flowed into the moisture desorption air passage 10 by the first blower 8 also passes through the moisture desorption air passage 10 and is sent again indoors. At this time, the indoor air is heated in the condenser 2 by the latent heat of condensation of the refrigerant. The heated air passes through the moisture desorption air passage 10 and flows into the desorption portion 5 a of the moisture adsorption / desorption means 5. Since the heated air has a low relative humidity, the moisture adsorbed from the moisture adsorption / desorption means 5 is desorbed. Air is humidified by the desorbed moisture. The humidified air flows into the first cooler 4. The air flowing into the first cooler 4 is cooled along with the evaporation of the refrigerant and sent to the room. At this time, the 1st cooler 4 dew condensation because the temperature of air becomes below a dew point temperature. At this time, the condensed water generated on the surface of the first cooler 4 prevents the corrosive component from adhering to the surface of the first cooler 4 by washing the surface with water.

  The air conditioner of this embodiment is installed in a room mainly for the purpose of dehumidifying the room. For this reason, for example, in the case of ambient air in a normal indoor environment, it is designed so that dew condensation occurs in most parts of the first cooler 4. However, with ambient air in an environment where the room temperature and humidity are low (the amount of moisture is small), there may be a case where a dew condensation environment cannot be obtained throughout the cooler. For example, when the ambient temperature / humidity condition is around the lower limit of the operating range of the air conditioner, the cooling capacity of the first cooler 4 is also suppressed, so that no condensation may occur in a part of the heat exchanger.

  Therefore, as described above, the air conditioner of the present invention desorbs and humidifies the moisture in the adsorbed room air, and allows the air having more moisture than the normal room air to flow into the first cooler 4. The condition is such that the entire area of the single cooler 4 (heat exchanger) can be washed with condensed water.

  Here, the corrosion of the heat exchanger (including piping connected to the heat exchanger) will be described. As an environment in which the air conditioner of the present embodiment is installed, there are, for example, a food processing plant and a food storage plant. By installing a heat exchanger serving as a cooler in such a room and operating the air conditioner, the temperature and humidity of the target space and the object to be processed are maintained and managed constant. For example, in a place where food is handled, there are cases where a metal tube is corroded by a metal corrosive component generated from the food. Here, an outline of metal corrosion due to metal corrosion components will be described.

  For example, in processing plants that cut vegetables, cleaning agents are used to wash the cut vegetables. In general, an aqueous solution of hypochlorous acid is often used as a cleaning agent because it has a high cleaning effect and has little influence on the human body in eating and drinking. And the process of washing | cleaning the cut vegetables with the huge tank filled with the hypochlorous acid aqueous solution is common. When putting vegetables in the tank for cleaning, hypochlorous acid water droplets, mist, etc. scatter in the space to be cooled and adhere to the heat exchanger, or the chlorine-based components of hypochlorous acid volatilize. It may soar up and be absorbed by moisture condensed on the heat exchanger.

  In addition, metal corrosion components may be generated directly from food. For example, sulfur-based gas is generated from eggs, and organic acids are generated from fried foods. In either case, the metal corrosion component is released into the space to be cooled, so that it is adsorbed by moisture condensed in the heat exchanger or the like and adheres to the heat exchanger. Moreover, the above-mentioned metal corrosion components adhering to the condensed moisture of the heat exchanger are concentrated by repeating the drying and condensation of the moisture. This is because when the metal corrosive component is absorbed by the moisture in the dew condensation part of the heat exchanger and then dried, almost only the corrosive component remains in the heat exchanger. It is because it adsorbs further. As a result, the power of metal corrosion is increased, leading to metal corrosion.

  On the other hand, if the mist such as hypochlorous acid occurs, the above corrosion occurs on the entire metal surface of the unit on which the heat exchanger is mounted, and if it is a gas such as hydrogen sulfide or organic acid, condensation occurs. The heat exchanger is in a state, and in any case of corrosion, the influence on food in the indoor space is enormous. For example, the heat exchanger has a structure in which fins formed of aluminum or the like are closely fixed to a heat transfer tube such as a copper pipe for the purpose of increasing the heat transfer area. When the aluminum fins composed of thin plates of about 0.1 mm are corroded, they become metal powder due to structural destruction and are blown out indoors by a blower or the like. As described above, since foods are often processed and stored in the room, metal powder is a big problem in terms of hygiene and the like. Moreover, when the copper piping which comprises a heat exchanger tube corrodes, there exists a malfunction which can make a hole in the copper piping. A refrigerant flows inside the copper pipe, and a hole is formed, so that a refrigerant mixed with refrigerating machine oil blows out into the room, which is a serious problem in food hygiene.

  In the present embodiment, the moisture adsorbing / desorbing means 5 desorbs moisture adsorbed from the room air, so that the air heated by the condenser 2 is humidified and supplied to the first cooler 4. In the first cooler 4, the entire cooler is in a dew condensation environment, and by cooling the air that flows in, moisture in the air is condensed and the first cooler 4 is washed with dew condensation water. For this reason, even if a corrosive component adheres to the first cooler 4 in a state of being mixed in the air, it is not concentrated on the surface, and corrosion in the first cooler 4 can be prevented.

  Moreover, in the air conditioning apparatus of this Embodiment, the air of temperature higher than room temperature flows in into the 1st cooler 4 by once warming indoor air with the condenser 2. FIG. For this reason, the efficiency of an air conditioning apparatus can be improved. For example, the efficiency (cooling capacity or dehumidifying capacity with respect to power consumption) of the air conditioner tends to increase as the evaporation temperature of the refrigerant increases. The evaporation temperature increases as the temperature of the air flowing into the cooler increases. For this reason, it is possible to perform operation more efficiently when the air heated by the condenser 2 is caused to flow in rather than the room air being directly flowed into the first cooler 4.

  Further, when the temperature of the air flowing into the first cooler 4 is low, the condensed water generated on the surface of the first cooler 4 may freeze and become frost. If frost forms on the surface of the first cooler 4, the efficiency of heat exchange between air and the refrigerant deteriorates, leading to an increase in air path resistance, etc., resulting in a decrease in efficiency and, for example, a liquid back operation. The compressor 1 may be damaged. In the air conditioning apparatus of the present embodiment, the temperature of the air flowing into the first cooler 4 is higher than the room air, so the condensed water does not become frost. For this reason, an operation | movement can be performed efficiently and a highly reliable air conditioning apparatus can be provided.

  From the above, it is particularly effective to operate the air conditioner of Embodiment 1 in a facility that maintains the indoor air temperature at a temperature slightly lower than room temperature, such as a food processing plant. For example, in a place where the ambient temperature is high and moisture in the air is sufficiently high, it is relatively easy to obtain the dew condensation environment in the first cooler 4 even if the ambient air is cooled as it is with the first cooler 4. Become. The air conditioner of the present embodiment sufficiently prevents corrosion even in an environment where it is difficult to obtain a dew condensation environment in the first cooler 4 such as a food processing plant where the indoor temperature is set low. Can measure.

  As described above, according to the air conditioning apparatus of the first embodiment, the moisture adsorbing / desorbing means 5 desorbs (releases) the moisture adsorbed from the room air in the moisture desorbing air passage 10 to the first cooler 4. The first cooler 4 cools the room air and condenses moisture, thereby generating condensed water on the surface of the first cooler 4 and washing the surface of the first cooler 4 with water. However, the corrosion of the first cooler 4 can be prevented without applying a coating or the like in advance. At this time, once the room air is warmed by the condenser 2, the desorption effect of the moisture adsorption / desorption means 5 in the moisture desorption air passage 10 can be further enhanced. In addition, by warming the indoor air, air having a temperature higher than room temperature flows into the first cooler 4, so that the evaporation temperature of the refrigerant in the first cooler 4 can be increased. It can be carried out.

Embodiment 2. FIG.
FIG. 3 is a diagram showing a control flow in the air-conditioning apparatus according to Embodiment 2 of the present invention. In the present embodiment, control of the air conditioner will be described. In the first embodiment, during the operation of the air conditioner, the first blower 8 and the second blower 9 are driven at the same time as the compressor 1 is driven. For example, the first blower 8 is driven for the purpose of refrigerant condensation in the condenser 2, moisture desorption in the moisture adsorption / desorption means 5, and refrigerant evaporation in the first cooler 4. On the other hand, the second blower 9 is driven for the purpose of moisture desorption in the moisture adsorption / desorption means 5. Moreover, both the 1st air blower 8 and the 2nd air blower 9 also have the objective of circulating indoor air.

  Here, in order to sufficiently distribute the air processed by the air conditioner indoors, for example, even when the thermostat is turned off where the refrigerant does not circulate in the refrigerant circuit, the air conditioner functions as a blower and the blowing operation continues. In many cases, control is used. In such a state where the refrigerant is not circulating in the refrigerant circuit, for example, heat absorption by the refrigerant is not performed in the first cooler 4, and the first cooler 4 is not cooled. For this reason, moisture in the air is not cooled by the first cooler 4 and does not condense. Driving the first blower 8 in this state promotes drying of the surface of the first cooler 4. Therefore, a lot of wet and dry cycles in which condensation occurs when the thermo is turned on and drying occurs when the thermo is turned off cause concentration of corrosive components.

  Here, the air conditioner has independently a second blower 9 and a first blower 8 that can be utilized for indoor air circulation. Therefore, in the air conditioning apparatus according to the present embodiment, at the time of the thermo OFF in which the refrigerant circuit is not operated, the driving of the first blower 8 is stopped (turned off) at least in the case of the thermo OFF in which the refrigerant circuit is not operated. Then, as in the present embodiment, when the air blowing operation is performed indoors without operating the refrigerant circuit, only the second blower 9 is driven (turned on). Since the first blower 8 is stopped without being driven, the air inflow to the first cooler 4 can be suppressed, and the air is circulated in the room without accelerating the drying of the first cooler 4. Can do. Although not particularly limited, the air conditioner may be equipped with a variable air volume blower as the second air blower 9 in order to adjust the indoor circulation air volume. Further, when the thermo is not OFF (when the thermo is ON), the compressor 1, the first blower 8, and the second blower 9 are driven (ON).

  As described above, in the air conditioning apparatus of the second embodiment, for example, in the air blowing operation when the thermo is OFF, only the second air blower 9 is driven, and therefore the first cooling in which dew condensation by the first air blower 8 cannot be expected. By not ventilating the cooler 4, the first cooler 4 can be prevented from drying, and when the thermostat is turned off, the corrosive component is washed with condensed water from the first cooler 4 during operation. It is possible to reduce the dry and wet cycle by the above and prevent corrosion of the first cooler 4. Refrigerant leakage can be prevented.

Embodiment 3 FIG.
FIG. 4 is a diagram showing the configuration of the air-conditioning apparatus according to Embodiment 3 of the present invention. In FIG. 4, the same reference numerals as those in FIG. 1 perform the same operations as those described in the first embodiment. The air conditioner of the present embodiment further includes a second expansion device 13 and a second cooler 14. In the refrigerant circuit, the second expansion device 13 depressurizes the liquid refrigerant flowing from the condenser 2 to form a two-phase refrigerant. The second cooler 14 evaporates a part of the two-phase refrigerant from the second expansion device 13. In the present embodiment, the first expansion device 3 further depressurizes the refrigerant that has passed through the second cooler 14, completely evaporates with the first cooler 4, and returns to the compressor 1.

  The air conditioner of the present embodiment is formed so that the air that has passed through the second cooler 14 by the second blower 9 passes through the adsorbing portion 5 b of the moisture adsorption / desorption means 5. The second cooler 14 cools the air to increase the relative humidity in the air flowing into the moisture adsorption / desorption means 5.

  FIG. 5 is a schematic diagram of moisture adsorption characteristics of the adsorbent carried on the moisture adsorption / desorption means 5. As shown in FIG. 5, the moisture adsorption / desorption means 5 tends to increase the amount of moisture adsorption from air having a high relative humidity. Therefore, by increasing the relative humidity of the air flowing into the moisture adsorption / desorption means 5, the moisture adsorption amount adsorbed by the moisture adsorption / desorption means 5 at the adsorption portion 5b is increased. Accordingly, the amount of moisture desorbed at the desorption portion 5a of the moisture absorption / desorption means 5 increases, and the moisture amount of the air flowing into the first cooler 4 increases. For this reason, the amount of dew condensation in the 1st cooler 4 can increase, the water-washing function in the 1st cooler 4 can be improved, and corrosion can be prevented.

Embodiment 4 FIG.
FIG. 6 is a diagram showing a configuration of an air-conditioning apparatus according to Embodiment 4 of the present invention. In FIG. 6, the same reference numerals as those in FIG. 4 perform the same operations as those described in the first and third embodiments. The temperature / humidity detector 15 detects the temperature and humidity of the room air. The controller 16 serving as a control device controls the operation of the air conditioner. In the present embodiment, the air conditioner is controlled based on the temperature and humidity related to detection by the temperature / humidity detector 15 in particular. Here, the controller 16 may be mounted in the air conditioner or may be installed independently.

  The operation of the air conditioning apparatus of the present embodiment will be described focusing on the processing of the controller 16. The controller 16 calculates the dew point temperature of the room air based on the temperature and humidity related to the detection by the temperature / humidity detector 15. Then, the opening degree of the second expansion device 13 is determined and controlled so as to be higher than the dew point temperature. The opening degree of the second expansion device 13 is adjusted so that the evaporation temperature of the refrigerant in the second cooler 14 becomes equal to or higher than the dew point temperature of the room air. Thereby, in the second cooler 14, the moisture adsorption amount in the moisture adsorption / desorption means 5 can be increased without causing condensation. For this reason, corrosion of the first cooler 4 and the second cooler 14 can be prevented by washing with water in the first cooler 4 and not causing condensation in the second cooler 14.

  Here, the best way for the controller 16 to determine whether or not the evaporation temperature in the second cooler 14 is equal to or higher than the dew point temperature is based on the refrigerant pressure or temperature detected in the second cooler 14. Further, for example, data based on the air conditioner is stored in storage means (not shown) included in the controller 16. For example, data in a table format in which the opening degree of the second expansion device 13 is determined in advance according to the indoor air condition is set as data based on the air conditioner. And the opening degree of the 2nd expansion device 13 can also be determined based on the temperature and humidity which the temperature / humidity detector 15 detects.

  As described above, in the air conditioner of Embodiment 4, the controller 16 controls the opening degree of the second expansion device 13 so that the evaporation temperature of the refrigerant in the second cooler 14 is equal to or higher than the dew point temperature. Therefore, by preventing condensation in the second cooler 14, not only the first cooler 4 but also the corrosion of the second cooler 14 can be prevented.

Embodiment 5 FIG.
In the above-described embodiment, the example of the dehumidification rotor that rotates the dehumidifier by using the moisture adsorption / desorption means 5 as the dehumidification rotor has been described. However, for example, the same situation can be obtained by switching the air path without rotating the dehumidifier. It becomes possible. For example, in FIG. 2, the dehumidification rotor is not rotated, and the desorption section 5 a allows the second blower 9 to ventilate the moisture for a certain period of time, and then the first blower 8 desorbs the moisture. The air path is switched. For this reason, the water | moisture-content adsorption / desorption means drive device (rotor rotation mechanism) 6 becomes unnecessary, and can reduce cost and apparatus arrangement space.

  Although not particularly shown in the above-described embodiment, the air conditioner according to the present invention is a device mainly for indoor dehumidification from the viewpoint of configuration. For this reason, when the temperature management of indoor air is performed more strictly and efficiently, it is preferable to combine it with an air conditioner having a different configuration.

  Moreover, in the air conditioning apparatus of the above-mentioned embodiment, although it is set as the air conditioning apparatus comprised so that a liquid reservoir (receiver) may not be provided between the condenser 2 and the 1st expansion device 3, a liquid reservoir is used. The same effect can be obtained with the air conditioner having the provided structure. Similarly, an air conditioner configured to provide an accumulator between the first cooler 4 and the compressor 1 can provide the same effect.

  DESCRIPTION OF SYMBOLS 1 Compressor, 2 Condenser, 3 1st throttle device, 4 1st cooler, 5 Moisture adsorption / desorption means, 5a Desorption part, 5b Adsorption part, 6 Moisture adsorption / desorption means drive device, 7 Slot plate, 8 First blower , 9 Second blower, 10 moisture desorption air passage, 11 moisture adsorption air passage, 12 rotor shaft, 13 second throttle device, 14 second cooler, 15 temperature / humidity detector, 16 controller.

Claims (5)

A refrigeration cycle apparatus that configures a refrigerant circuit by connecting a compressor, a condenser, a first throttling device, and a first cooler that pressurize the refrigerant with a refrigerant pipe;
In the moisture adsorption air passage through which the adsorbent is supported and the air for adsorbing moisture to the adsorbent passes, the air for adsorbing moisture in the air to the adsorbent and desorbing the adsorbed moisture passes. Moisture adsorption / desorption means for desorbing moisture adsorbed from the adsorbent in the moisture desorption air passage,
A first blower forming a flow of air passing through the moisture desorption air passage;
A second blower that forms a flow of air passing through the moisture adsorption air passage,
In the moisture desorption air passage, the condenser is arranged upstream of the moisture adsorption / desorption means with respect to the air flow, and the first cooler is arranged downstream of the moisture adsorption / desorption means. An air conditioner characterized.   The air conditioner according to claim 1, wherein the first air blower is not driven while the refrigerant circulation in the refrigerant circuit is stopped. Between the condenser and the first expansion device, a second expansion device and a second cooler are further connected by a refrigerant pipe,
The air conditioner according to claim 1 or 2, wherein the second cooler is disposed on the windward side of the moisture adsorption / desorption means of the moisture adsorption air passage.   The opening degree of the second expansion device is adjusted so that the evaporation temperature in the second cooler is higher than the dew point temperature of the air flowing into the second cooler. The air conditioning apparatus described. The moisture absorption / desorption means includes
A cylinder provided across the moisture adsorption air passage and the moisture desorption air passage, and rotatably installed in a circumferential direction around an axis, wherein an adsorbent is provided in the cylinder, and the moisture adsorption air Moisture in the air passing through the moisture adsorption air passage is adsorbed by the adsorption portion located on the road, and adsorbed in the adsorption portion by the air passing through the moisture desorption air passage in the desorption portion located on the moisture desorption air passage A dehumidification rotor that desorbs moisture;
The air conditioning apparatus according to any one of claims 1 to 4, further comprising: a rotor driving unit that rotates the dehumidifying rotor in a circumferential direction.

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