JP2014118007A - Absorption-type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorption-type air conditioner in which cooling performance can be improved by improving regeneration capacity of an absorption agent.SOLUTION: A absorption-type air conditioner 1 is configured to include a three-way valve 41 switchable to a first communication position to make communication between a vapor piping 38 and an absorption piping 7A and to a second communication position to make communication between the vapor piping 38 and an absorption piping 7B, a four-way valve 15 switchable to a first communication position to make communication between a cooling water pipe 39 and an absorption piping 6A and to a second communication position to make communication between the cooling water pipe 39 and an absorption piping 6B, and, a vapor valve 42 openable/closable between an opening position for opening the vapor piping 38 and a closing position for closing the vapor piping 38.

Description

  The present invention relates to an adsorption-type air conditioner, and more particularly, to an adsorption-type air conditioner that is provided in a vehicle or the like and cools a passenger compartment.

  Adsorption-type air conditioners that air-condition the interior of a vehicle provide cooling capacity by evaporating the refrigerant in an adsorber held in a vacuum, and the refrigerant is continued by adsorbing the evaporated vapor medium to the adsorbent. Adsorption type air conditioners that evaporate continuously and maintain cooling capacity are known.

  This adsorption type air conditioner heats the adsorbent when the adsorbent adsorption capacity decreases, desorbs (regenerates) the adsorbed refrigerant, and evaporates the refrigerant again to obtain cooling capacity. . However, when the adsorbent becomes fully adsorbed as the adsorbing operation proceeds, the latent heat of vaporization of the evaporation medium decreases and the cooling capacity decreases.

  As an adsorption type air conditioner that can prevent the cooling capacity from being lowered, the liquid phase medium supplied to the adsorbent is heated using the exhaust heat of the internal combustion engine to quickly raise the temperature of the adsorbent. Thus, it is known to continuously evaporate the refrigerant by increasing the regeneration capacity of the adsorbent (see, for example, Patent Documents 1 and 2).

Japanese Patent Laid-Open No. 8-296922 JP 2004-286247 A

  However, in such a conventional adsorption type air conditioner, the heat capacity of the internal combustion engine can be sufficiently ensured while the vehicle is traveling, but the operation state in which the heat capacity of the internal combustion engine is small, for example, immediately after starting, etc. In the operation state where the temperature of the cooling water is low, the liquid phase medium (for example, engine cooling water) cannot be sufficiently heated by the exhaust heat of the internal combustion engine. For this reason, there is a problem that the adsorbent for the attaching / detaching operation is not sufficiently regenerated and the cooling performance is deteriorated.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide an adsorption-type air conditioner that can improve the cooling performance by improving the regeneration capacity of the adsorbent. .

  In order to achieve the above object, an adsorption type air conditioner according to the present invention (1) heats a liquid phase medium using a heat receiving part for generating steam using heat of a high temperature medium and heat of the high temperature medium. A heat exchange passage portion having a liquid phase medium heat receiving portion, a bypass passage portion that bypasses the heat exchange passage portion and distributes the high temperature medium, and a flow path through which the high temperature medium flows is switched to the heat exchange passage portion. A heat recovery device comprising a first switching position and a first switching means switchable to the second switching position for switching to the bypass passage section, respectively, each containing a refrigerant and an adsorbent, and heated by the evaporative condensation section The cooling effect is exerted by the evaporating action of the refrigerant, the evaporated refrigerant is adsorbed to the adsorbent, and the adsorbent is heated to remove the refrigerant adsorbed on the adsorbent. Separation A first vapor circulation section that circulates the vapor medium between the first adsorber and the second adsorber, and the adsorbent and the vapor heat receiving section of the first adsorber, and the second The liquid phase between the second vapor circulation section for circulating the vapor medium between the adsorbent and the vapor heat receiving section of the adsorber, and the first adsorbent and the liquid medium heat receiving section. A first liquid phase medium circulation section for circulating the medium; a second liquid phase medium circulation section for circulating the liquid phase medium between the second adsorbent and the liquid phase medium heat receiving section; and the steam. Second switching means switchable between a first communication position that communicates the heat receiving section and the first steam circulation section and a second communication position that communicates the steam heat reception section and the second steam circulation section. And a first communication position that communicates the liquid phase medium heat receiving section and the first liquid phase medium circulation section. A third switching means switchable to a second communication position that communicates the liquid phase medium heat receiving section and the second liquid phase medium circulation section, an open position that opens the steam heat receiving section, and the steam heat reception And an opening / closing means that is openable and closable with a closing position for closing the part.

  This adsorption type air conditioner is an adsorbent for the first adsorber when the temperature of the liquid phase medium is low and the temperature of the liquid phase medium supplied to the adsorbent is low, such as immediately after the start of the internal combustion engine. Alternatively, the adsorbent of the second adsorber and the steam heat receiving part are communicated with each other via the steam circulation part. For this reason, the vapor medium evaporated by the high temperature medium (for example, exhaust heat of the internal combustion engine) can be introduced into one of the adsorbent of the first adsorber and the adsorbent of the second adsorber, The adsorbent regeneration ability can be increased by raising the temperature of the adsorbent early.

  On the other hand, the other of the adsorbent of the first adsorber and the adsorbent of the second adsorbent can exhibit the cooling capacity by adsorbing the evaporation medium of the refrigerant heated by the evaporation condensing unit. As a result, the cooling capacity can be improved.

  In the adsorption-type air conditioner described in (1) above, (2) when the cooling operation mode is set and the first cooling mode is switched to the rapid cooling mode in which rapid cooling is performed at a high rate of temperature rise of the adsorbent, the first The switching means is switched to the first switching position, and the switching control means is configured to switch the opening / closing means to the open position.

  In this adsorption type air conditioner, for example, when the temperature of the liquid phase medium supplied to the adsorbent is low, such as immediately after the start of the internal combustion engine, the switching control means sets the second switching means to the first switching position. And the opening / closing means is switched to the open position.

  For this reason, the adsorbent of the first adsorber or the adsorbent of the second adsorber and the steam heat receiving part are communicated with each other through the steam circulation part and evaporated by a high temperature medium (for example, exhaust heat of the internal combustion engine). A vapor medium is introduced into the adsorbent. Accordingly, it is possible to improve the regeneration capacity of the adsorbent by raising the temperature of the adsorbent early.

  In the adsorption type air conditioner according to the above (1) or (2), (3) the switching control means is set to the cooling operation mode, and the temperature rising rate of the adsorbent is higher than that of the rapid cooling mode. When shifting to the low strong cooling mode, the first switching means is switched to the first switching position, and the opening / closing means is switched to the closed position.

  The switching control means of the adsorption type air conditioner sets the first switching means to the first switching mode when the cooling operation mode is set and the adsorbent is heated to a strong cooling mode lower than the rapid cooling mode. Since the switching means is switched to the switching position and the opening / closing means is switched to the closing position, the temperature of the liquid phase medium supplied to the adsorbent is raised by a high-temperature medium (for example, exhaust heat of the internal combustion engine).

  The liquid phase medium has a heating rate slower than that of the vapor medium and is lower than that of the vapor medium, but can be heated to a temperature sufficient to regenerate the adsorbent by the liquid phase medium heat receiving unit. Therefore, it is possible to raise the temperature of the adsorbent early to increase the regeneration capacity of the adsorbent and to improve the cooling capacity.

  In the adsorption type air conditioner according to (1) to (3) above, (4) when the switching control unit shifts to a non-heat recovery mode in which heat recovery by the heat recovery unit is not performed, the first control unit The switching means is switched to the second switching position, and the opening / closing means is switched to the closed position.

  The switching control means of the adsorption type air conditioner switches the first switching means to the second switching position and moves the opening / closing means to the closed position when the non-heat recovery mode in which the heat recovery by the heat recovery device is not performed. Therefore, the liquid phase medium supplied to the adsorbent is not heated by the high temperature medium. For this reason, it is possible to prevent the liquid phase medium from being excessively heated regardless of the setting of the cooling operation mode.

  In the adsorption type air conditioner described in (2) above, (5) the switching control unit shifts to the rapid cooling mode on condition that the temperature of the liquid phase medium is lower than a predetermined temperature. Consists of things.

  Since the switching control means of this adsorption type air conditioner shifts to the rapid cooling mode on condition that the temperature of the liquid phase medium is lower than a predetermined temperature, the adsorbent is immediately after starting the internal combustion engine. When the temperature of the liquid phase medium supplied to the refrigerant is low, the vapor medium evaporated by the high temperature medium (for example, exhaust heat of the internal combustion engine) is introduced into the adsorbent to quickly raise the temperature of the adsorbent. Reproduction ability can be increased. For this reason, for example, rapid cooling can be performed when the internal combustion engine is started.

  In the adsorption type air conditioner described in (3) above, (6) the switching control means is provided on the condition that the temperature of the liquid phase medium is equal to or higher than the predetermined temperature and lower than a preset temperature. It is comprised from what transfers to the said strong cooling mode.

  Since the switching control means of this adsorption type air conditioner shifts to the strong cooling mode on condition that the temperature of the liquid phase medium is equal to or higher than a predetermined temperature and lower than a preset temperature, the adsorbent is regenerated. A liquid phase medium having a temperature sufficient for this can be supplied to the adsorbent. Therefore, it is possible to raise the temperature of the adsorbent early to increase the regeneration capacity of the adsorbent, and it is possible to improve the cooling performance by strong cooling.

  ADVANTAGE OF THE INVENTION According to this invention, the adsorption | suction type air conditioner which can improve the reproduction | regeneration capability of adsorption agent and can improve cooling performance can be provided.

It is a figure showing one embodiment of the adsorption type air conditioner concerning the present invention, and is a schematic structure figure of a vehicle provided with an adsorption type air conditioner. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a control block diagram of an adsorption type air conditioner. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 1st state at the time of strong cooling mode. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 2nd state at the time of a strong cooling mode. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 1st state at the time of rapid cooling mode. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 2nd state at the time of rapid cooling mode. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 1st state at the time of non-heat recovery mode. It is a figure which shows one Embodiment of the adsorption type air conditioner which concerns on this invention, and is a figure which shows the flow of the cooling water of the 2nd state at the time of non-heat recovery mode.

Hereinafter, embodiments of an adsorption type air conditioner according to the present invention will be described with reference to the drawings.
1-8 is a figure which shows one Embodiment of the adsorption | suction type air conditioner which concerns on this invention.
First, the configuration will be described.
In FIG. 1, the adsorption-type air conditioner 1 has two adsorbers 2A and 2B, and by continuously operating the two adsorbers 2A and 2B, the cooling capacity is continuously generated. Yes. In the adsorption-type air conditioner 1 of the present embodiment, the adsorber 2A constitutes a first adsorber, and the adsorber 2B constitutes a second adsorber.

  The adsorbers 2A and 2B are housed in stainless steel casings 3A and 3B in which a refrigerant (for example, water) W1 is sealed in a state where the inside is maintained in a substantially vacuum, and the casings 3A and 3B. Adsorption that cools or heats the evaporating and condensing pipes 4A and 4B as evaporating and condensing parts that exchange heat with the refrigerant W1 in 3A and 3B, and the adsorbents 5A and 5B enclosed (accommodated) in the casings 3A and 3B. It includes pipes 6A, 6B, 7A, 7B and the like.

  The adsorbents 5A and 5B are made of, for example, silica gel, zeolite, activated carbon, activated alumina, or the like. Moreover, the refrigerant | coolant enclosed with casing 3A, 3B is not limited to water.

  The adsorbents 5A and 5B adsorb or desorb the refrigerant according to the refrigerant humidity (relative humidity) in the atmosphere. The greater the refrigerant humidity (relative humidity), the larger the amount of refrigerant (moisture) adsorbed. Thus, the smaller the refrigerant humidity (relative humidity), the smaller the refrigerant (moisture) adsorption amount.

  For this reason, when the adsorbents 5A and 5B are heated, the relative humidity in the vicinity of the surfaces of the adsorbents 5A and 5B increases, the amount of adsorbable water decreases, and the adsorbed moisture desorbs and evaporates. That is, the adsorbents 5A and 5B desorb and release the adsorbed moisture while absorbing heat from the surroundings.

  Further, the evaporation phase condensing pipes 4A and 4B are configured such that a liquid phase medium flows therethrough. In the present embodiment, the liquid phase medium is composed of cooling water for cooling the engine 9 described later. The liquid phase medium is not limited to cooling water.

  The adsorption pipes 6A, 6B, 7A, and 7B are made of metal pipes such as aluminum. Cooling water flows through the inside of the adsorption pipes 6A and 6B, and a vapor medium passes through the inside of the adsorption pipes 7A and 7B. It comes to circulate.

  The adsorption pipes 6A and 6B are connected to a cooling water pipe 8. The cooling water pipe 8 is connected to a water jacket and a main radiator 10 provided in an engine 9 which is an internal combustion engine.

  Further, a water pump 11a and a thermostat 11b are provided on the cooling water pipe 8. When the water pump 11a is operated, the cooling water is adsorbed pipes 6A and 6B, the cooling water pipe 8, the engine 9, and the main radiator 10. The cooling water which is circulated between the two and is heat-exchanged with the air by the main radiator 10 is supplied to the adsorption pipes 6A and 6B. The water pump 11a is composed of, for example, a mechanical water pump driven by a crankshaft of the engine 9.

  Further, the thermostat 11b bypasses the main radiator 10 when the temperature of the cooling water flowing through the cooling water pipe 8 is low, such as when the engine 9 is warming up, and the cooling water is passed between the cooling water pipe 8 and the engine 9. Switching control is performed to circulate.

  The thermostat 11b includes a thermoactuator having a thermowax that is displaced according to the temperature of the cooling water, and a switching valve that switches the engine 9 and the main radiator 10 between communication and non-communication according to the displacement of the thermowax. The The thermostat 11b is not limited to a thermoactuator.

Further, the adsorption pipes 6 </ b> A and 6 </ b> B are connected to a cooling water pipe 12, and the cooling water pipe 12 is connected to a sub radiator 13. The sub-radiator 13 includes a blower fan 13a, and cools the cooling water by exchanging heat between the outside air and the cooling water.
Here, for convenience of explanation, FIG. 1 shows two sub-radiators 13, but there is only one sub-radiator 13. Note that two sub-radiators 13 may be provided independently.

  The cooling water pipe 12 is provided with an electric water pump 14. When the water pump 14 is operated, the cooling water is circulated between the adsorption pipes 6 A and 7 A and the sub-radiator 13. Heat-exchanged cooling water is supplied to the adsorption pipes 6A and 6B.

  Further, an electromagnetic four-way valve 15 as a third switching means is interposed between the cooling water pipe 8 and the cooling water pipe 12 and the adsorption pipes 6A and 6B.

  The four-way valve 15 communicates between the cooling water pipe 8 and the adsorption pipe 6A, communicates the cooling water pipe 12 and the adsorption pipe 6B, and communicates the cooling water pipe 8 and the adsorption pipe 6B with cooling. Switching is possible between a second communication position where the water pipe 12 and the adsorption pipe 6A communicate with each other.

  The evaporative condensing pipes 4A and 4B are connected to a cooling water pipe 16, and the cooling water pipe 16 is connected to the sub radiator 13. The cooling water pipe 16 is provided with an electric water pump 17. When the water pump 17 is operated, the cooling water is circulated between the sub radiator 13 and the evaporative condensation pipes 4 </ b> A and 4 </ b> B. Cooling water heat-exchanged with air is supplied to the evaporative condensation pipes 4A and 4B.

  The evaporative condensing pipes 4A and 4B are connected to a cooling water pipe 18, and the cooling water pipe 18 is connected to an indoor heat exchanger 19. An electric water pump 23 is provided on the cooling water pipe 18, and the cooling water cooled by the operation of the water pump 23 between the evaporative condensation pipes 4 </ b> A and 4 </ b> B, the cooling water pipe 18, and the indoor heat exchanger 19. Has come to circulate.

  This indoor heat exchanger 19 is cooled by the cooling capacity generated by the adsorbers 2A and 2B, and exchanges heat between the cooling water flowing through the evaporative condensation pipes 4A and 4B and the air blown into the room so as to cool the conditioned air. It has become.

  The indoor heat exchanger 19 is disposed in an air conditioning casing 20 that forms a passage for conditioned air. For example, a centrifugal blower 21 is disposed on the upstream side of the air flow of the air conditioning casing 20. Cooling air in which cooling water and air are heat-exchanged by the air blower 21 is introduced into the room.

  Further, an electromagnetic four-way valve 22 is interposed between the cooling water pipe 16 and the cooling water pipe 18 and the evaporative condensation pipes 4A and 4B. The four-way valve 22 communicates the cooling water pipe 16 and the evaporative condensing pipe 4A, and communicates the cooling water pipe 16 and the evaporative condensing pipe 4B with the first switching position for communicating the cooling water pipe 18 and the evaporative condensing pipe 4B. In addition, switching between the cooling water pipe 18 and the second switching position where the evaporative condensing pipe 4A communicates is possible.

  Further, the adsorption air conditioner 1 includes an exhaust heat recovery device 31 as a heat recovery device, and this exhaust heat recovery device 31 is provided on an exhaust pipe 32 of the engine 9. The exhaust heat recovery device 31 includes an exhaust pipe portion 33 connected to an exhaust pipe 32, and the inside of the exhaust pipe portion 33 is separated from a heat receiving passage 35 and a heat receiving passage 35 as heat exchange passage portions by a partition member 34. It is partitioned into a bypass passage 36 as a bypass passage portion bypassed.

  Exhaust gas as a high-temperature medium discharged from the engine 9 through the exhaust pipe 32 flows through the heat receiving passage 35 and the bypass passage 36. Further, a switching valve 37 as a first switching means is provided at the downstream end of the partition member 34 in the exhaust gas exhaust direction. The switching valve 37 is driven by, for example, an electromagnetic actuator 37a. As a result, the flow path through which the exhaust gas flows can be switched to the first switching position for switching to the heat receiving passage 35 and the second switching position for switching to the bypass passage 36.

  Further, a steam pipe 38 serving as a steam heat receiving portion is provided on the upstream side of the heat receiving passage 35 in the exhaust direction of the exhaust gas, and the steam pipe 38 is filled with a liquid phase medium, for example, water W2. The water W2 is accommodated in the steam pipe 38 such that the water surface of the water W2 reaches a certain height from the bottom of the steam pipe 38. Moreover, although the liquid phase medium of this Embodiment is water, it is not limited to water.

  The heat receiving passage 35 is provided with a cooling water pipe 39 as a liquid phase medium heat receiving portion, and the cooling water pipe 39 is located downstream of the steam pipe 38 in the exhaust gas exhaust direction. The cooling water pipe 39 is connected to the cooling water pipe 8 via a flange portion 39a, and the cooling water pipe 39 and the cooling water pipe 8 are configured to circulate cooling water of the engine 9.

  The cooling water pipe 39 communicates with the adsorption pipes 6A and 6B via the cooling water pipe 8. For this reason, the four-way valve 15 has a first communication position where the cooling water pipe 39 communicates with the adsorption pipe 6A via the cooling water pipe 8, and a second communication position where the cooling water pipe 39 communicates with the adsorption pipe 6B via the cooling water pipe 8. It will be switched to the communication position.

  On the other hand, the steam pipe 38 is connected to the adsorption pipes 7A and 7B via an electromagnetic three-way valve 41 as a second switching valve. The three-way valve 41 is freely switchable between a first communication position for communicating the steam pipe 38 and the adsorption pipe 7A and a second communication position for communicating the steam pipe 38 and the adsorption pipe 7B.

  Further, for example, an electromagnetic steam valve 42 as an opening / closing means is provided on the steam pipe 38. The steam valve 42 has an open position for opening the steam pipe 38 and a closed position for closing the steam pipe 38. It can be opened and closed between.

  For this reason, when the steam valve 42 is closed, the communication between the steam pipe 38 and the adsorption pipes 7A and 7B is blocked. When the steam valve 42 is opened, any one of the steam pipe 38, the adsorption pipe 7 </ b> A, and the adsorption pipe 7 </ b> B is communicated via the three-way valve 41.

  When any one of the steam pipe 38 and the adsorption pipe 7A and the adsorption pipe 7B is communicated via the three-way valve 41, the heat of the hot exhaust gas flowing through the heat receiving passage 35 and the water W2 in the steam pipe 38 The heat is exchanged, and steam is generated in the steam pipe 38. This vapor circulates between the vapor pipe 38 and either the adsorption pipe 7A or the adsorption pipe 7B, thereby heating the adsorbent 5A or the adsorbent 5B.

  In addition, the cooling water flowing through the cooling water pipe 39 located on the downstream side of the steam pipe 38 is heated by exchanging heat with the high-temperature exhaust gas flowing through the heat receiving passage 35. When the cooling water is heated, the heated cooling water circulates between the cooling water pipe 39 and either the adsorption pipe 6A or the adsorption pipe 6B, thereby heating the adsorbent 5A or the adsorbent 5B. Will do. Accordingly, the adsorbents 5A and 5B are regenerated by being heated by the high-temperature cooling water and steam higher than the cooling water.

  In the adsorption type air conditioner 1 of the present embodiment, the adsorption pipe 6A and the cooling water pipe 8 constitute a first liquid phase medium circulation part, and the adsorption pipe 6B and the cooling water pipe 8 constitute a second liquid phase medium circulation part. Is configured. Further, the adsorption pipe 7A constitutes a first vapor circulation part, and the adsorption pipe 7B constitutes a second vapor circulation part.

  As shown in FIG. 2, the blower fan 13a, the water pumps 14, 17, 23, the four-way valves 15, 22, the centrifugal blower 21, the actuator 37a, the three-way valve 41, and the steam valve 42 are an ECU (Electronic Control Unit). 43 is driven.

In addition, a cooling switch 44 is provided in an instrument panel or the like in the passenger compartment, and when the cooling switch 44 is operated, the ECU 43 determines that the cooling operation mode is set and drives the centrifugal blower 21. It is supposed to be. When the centrifugal blower 21 is driven, the cold air heat-exchanged by the indoor heat exchanger 19 is introduced into the room.
The ECU 43 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The ECU 43 acquires detection information of the cooling switch 44 and the water temperature sensor 45 based on the cooling program stored in the ROM by the CPU, and the blower fan 13a and the water pumps 14, 17, 23, 4 and 4 based on the detection information. The one-way valves 15 and 22, the centrifugal blower 21, the actuator 37a, the three-way valve 41, and the steam valve 42 are controlled.

  In addition, information is input from the water temperature sensor 45 to the ECU 43. The water temperature sensor 45 is provided in the cooling water pipe 8, for example, and the water temperature sensor 45 detects the temperature of the cooling water flowing through the cooling water pipe 8 and outputs detection information to the ECU 43.

  When the ECU 43 determines that the temperature of the cooling water temperature when the cooling switch 44 is operated is lower than a predetermined temperature T1 ° C. based on the detection information from the water temperature sensor 45, the ECU 43 enters the rapid cooling mode. Transition.

  When shifting to the rapid cooling mode, the ECU 43 drives the actuator 37a to switch the switching valve 37 to the first switching position and switches the steam valve 42 to the open position.

Further, the ECU 43 is based on detection information from the water temperature sensor 45, and the temperature of the cooling water when the cooling switch 44 is operated is equal to or higher than a predetermined temperature T1 ° C. and lower than a preset temperature T 2 ° C. On the condition that it is, it shifts to the strong cooling mode.
When shifting to the strong cooling mode, the ECU 43 drives the actuator 37a to switch the switching valve 37 to the first switching position and switches the steam valve 42 to the closed position.

  In addition, the ECU 43 shifts to the non-heat recovery mode on the condition that the temperature of the cooling water temperature is equal to or higher than the set temperature T2 ° C., regardless of the operation of the cooling switch 44, based on the detection information from the water temperature sensor 45. It has become. Here, at the time of non-cooling, the ECU 43 stops the operation of the centrifugal blower 21.

The ECU 43 drives the actuator 37a to switch the switching valve 37 to the second switching position and switches the steam valve 42 to the non-heat recovery mode in which the heat recovery of the cooling water by the exhaust heat recovery device 31 is not performed. Switch to the closed position.
In the adsorption type air conditioner 1 of the present embodiment, the ECU 43, the cooling switch 44, and the water temperature sensor 45 constitute a switching control means. The predetermined temperature T1 ° C. and the set temperature T2 ° C. are stored in the ROM of the ECU 43.

Next, the operation will be described.
(Strong cooling mode)
First, the operation of the adsorption type air conditioner 1 in the strong cooling mode will be described with reference to FIGS. This strong cooling mode is a mode in which the cooling capacity is lower than that in the rapid cooling mode, and the heating rate of the adsorbents 5A and 5B is set lower than that in the rapid cooling mode.

  When the cooling switch 44 is operated by a vehicle occupant, the ECU 43 determines whether the engine cooling water temperature is equal to or higher than the predetermined temperature T1 ° C. and lower than the set temperature T2 ° C. based on the detection information of the water temperature sensor 45. To do. When the ECU 43 determines that the engine cooling water temperature is equal to or higher than the predetermined temperature T1 ° C. and lower than the set temperature T2 ° C., the ECU 43 operates the water pumps 14, 17, 23 and the centrifugal blower 21 to distribute the cooling water and air. .

  Further, as shown in FIG. 3, the ECU 43 switches the steam valve 42 to the closed position and drives the actuator 37a to switch the switching valve 37 to the first switching position. Further, the four-way valve 15 is switched to the first communication position and the four-way valve 22 is switched to the second communication position.

  Therefore, the cooling water pipe 39 is communicated with the adsorption pipe 6 </ b> A through the cooling water pipe 8, and the sub radiator 13 is communicated with the adsorption pipe 6 </ b> B through the cooling water pipe 12. For this reason, the cooling water flowing through the cooling water pipe 39 receives the heat of the exhaust gas flowing through the heat receiving passage 35 and rises in temperature, and as indicated by the arrow A1, the high-temperature cooling water becomes the cooling water pipe 39, the cooling water pipe 8 and the adsorption pipe 6A. Circulate between.

  As indicated by A2, low-temperature cooling water cooled by the sub-radiator 13 circulates between the sub-radiator 13, the cooling water pipe 12, and the adsorption pipe 6B. Further, since the evaporative condensing pipe 4B communicates with the indoor heat exchanger 19 via the cooling water pipe 18, the cooling water flows between the evaporating condensing pipe 4B, the cooling water pipe 18 and the indoor heat exchanger 19 as indicated by A3. Circulate.

  Furthermore, since the evaporative condensing pipe 4A communicates with the sub-radiator 13 via the cooling water pipe 16, low-temperature cooling water communicates between the evaporative condensing pipe 4A, the cooling water pipe 16 and the sub-radiator 13, as indicated by A4.

  At this time, since the cooling water heated by the air blown into the room circulates in the evaporative condensation pipe 4B of the adsorber 2B, the refrigerant W1 in the casing 3A evaporates and the latent heat of vaporization during the evaporation of the refrigerant W1 causes Heat is exchanged between the cooling water cooled by the evaporative condensation pipe 4B and the outside air, and the air blown into the room is cooled.

  At the same time, in the casing 3B of the adsorber 2B, the evaporation refrigerant evaporated by the adsorbent 5B is adsorbed to promote evaporation. At this time, the adsorbent 5B generates heat (condensation heat) when adsorbing the evaporative refrigerant, and when the temperature of the adsorbent 5B rises, the moisture adsorption capacity decreases, so the sub-radiator 13 and the adsorption pipe 6B. The cooling water is circulated between and the temperature of the adsorbent 5B is suppressed.

  On the other hand, because the engine cooling water heated by the exhaust gas flows into the adsorption pipe 6A of the adsorber 2A, the adsorbent 5A in the casing 3A is heated, and the adsorbent 5A releases the adsorbed water ( Detach).

At this time, since the cooling water cooled by the sub-radiator 13 is circulating in the evaporative condensation pipe 4A of the adsorber 2A, the water vapor desorbed from the adsorbent 5A is cooled and condensed by the evaporative condensation pipe 4A. Thus, the adsorbent 5A is regenerated.
Thus, on the adsorber 2B side, the refrigerant is evaporated and the evaporation medium is adsorbed, while on the adsorber 2A side, the adsorbed moisture is desorbed and the evaporation medium is cooled and condensed.

  Therefore, the evaporation condensing pipe 4B of the adsorber 2B functions as an evaporator for evaporating the liquid-phase refrigerant, and the evaporating condensation pipe 4A of the adsorber 2A functions as a condenser for condensing the evaporative refrigerant. Here, the state in which the cooling water flows when the evaporative condensation pipe 4B functions as an evaporator and the evaporative condensation pipe 4A functions as a condenser is referred to as a first state.

  Further, in the strong cooling mode, heat exchange is not performed in the steam pipe 38, so that heat exchange can be performed efficiently between the exhaust gas and the cooling water flowing through the cooling water pipe 39, and the amount of heat recovered from the exhaust gas. Can be more. For this reason, the temperature increase rate of the cooling water can be increased.

  Further, during the warm-up operation of the engine 9 during non-cooling, since the temperature rise rate of the cooling water can be increased, the warm-up time of the engine 9 can be shortened and the piston of the engine 9 such as a piston can be slid. The friction loss of the moving member can be reduced and the fuel consumption of the engine 9 can be prevented from deteriorating.

  Next, the ECU 43 switches the four-way valve 15 to the second communication position as shown in FIG. 4 when the first state has elapsed for a certain period of time or longer, that is, when the regeneration of the adsorbent 5A is completed. The direction valve 22 is switched to the first communication position.

  For this reason, the cooling water pipe 39 is communicated with the adsorption pipe 6B via the cooling water pipe 8, and the sub radiator 13 is communicated with the adsorption pipe 6A via the cooling water pipe 12. For this reason, the cooling water flowing through the cooling water pipe 39 receives the heat of the exhaust gas flowing through the heat receiving passage 35 and rises in temperature. As indicated by the arrow B1, the high-temperature cooling water becomes the cooling water pipe 39, the cooling water pipe 8 and the adsorption pipe 6B. Circulate between.

  Further, as indicated by an arrow B2, low temperature cooling water cooled by the sub radiator 13 circulates between the sub radiator 13, the cooling water pipe 12, and the adsorption pipe 6A. Further, since the evaporative condensing pipe 4A communicates with the indoor heat exchanger 19 via the cooling water pipe 18, the cooling water is connected between the evaporating condensing pipe 4A, the cooling water pipe 18 and the indoor heat exchanger 19 as indicated by an arrow B3. Circulate.

  Further, since the evaporative condensing pipe 4B communicates with the sub radiator 13 via the cooling water pipe 16, low temperature cooling water communicates between the evaporating condensing pipe 4B, the cooling water pipe 16 and the sub radiator 13, as shown by an arrow B4. .

  At this time, the cooling water heated by the air blown into the room circulates in the evaporation condensing pipe 4A of the adsorber 2A, so that the liquid phase refrigerant in the casing 3B evaporates and the liquid phase refrigerant evaporates when evaporating. Heat is exchanged between the cooling water cooled by the evaporative condensation pipe 4 </ b> A by the latent heat and the outside air, and the air blown into the room is cooled.

  At the same time, in the casing 3A of the adsorber 2A, the evaporating refrigerant evaporated by the adsorbent 5A is adsorbed to promote evaporation. At this time, the adsorbent 5A generates heat (condensation heat) when adsorbing the evaporative refrigerant, and when the temperature of the adsorbent 5A rises, the moisture adsorbing capacity decreases, so the sub radiator 13 and the adsorption pipe 6A. The cooling water is circulated between and the temperature of the adsorbent 5A is suppressed.

  On the other hand, because the engine cooling water heated by the exhaust gas flows into the adsorption pipe 6B of the adsorber 2B, the adsorbent 5B in the casing 3B is heated, and the adsorbent 5B releases the adsorbed water ( Detach).

At this time, since the cooling water cooled by the sub-radiator 13 is circulated through the evaporative condensation pipe 4B of the adsorber 2B, the water vapor desorbed from the adsorbent 5B is cooled and condensed by the evaporative condensation pipe 4B. Thus, the adsorbent 5B is regenerated.
Thus, on the adsorber 2A side, the refrigerant is evaporated and the evaporation medium is adsorbed, while on the adsorber 2B side, the adsorbed moisture is desorbed and the evaporation medium is cooled and condensed.

  Therefore, the evaporation condensing pipe 4A of the adsorber 2A functions as an evaporator for evaporating the liquid phase refrigerant, and the evaporation condensing pipe 4B of the adsorber 2B functions as a condenser for condensing the evaporative refrigerant. Here, the state in which the cooling water flows when the evaporative condensation pipe 4A functions as an evaporator and the evaporative condensation pipe 4B functions as a condenser is referred to as a second state.

  And ECU43 will be set to a 1st state again, when fixed time passes. In this way, the adsorption air conditioner 1 is continuously operated while repeating the first state and the second state at regular intervals. The predetermined time described above is selected based on the moisture adsorption performance of either one or both of the adsorbents 5A and 5B.

  Further, in the strong cooling mode, the regenerating ability of the adsorbents 5A and 5B can be improved by increasing the heating rate of the adsorbents 5A and 5B with the cooling water heated by the heat of the exhaust gas, so that the cooling performance is improved. Can be improved.

(Rapid cooling mode)
Next, the operation of the adsorption type air conditioner 1 in the rapid cooling mode will be described with reference to FIGS. The rapid cooling mode is a mode in which the temperature increase rate of the adsorbents 5A and 5B is set high when the room temperature is high, for example, when the engine 9 is started, and the room needs to be rapidly cooled. .
Here, when the heat capacity of the engine 9 is low, such as when the engine 9 is started, the heat capacity of the exhaust gas discharged from the engine 9 is also small. For this reason, even if the cooling water flowing through the cooling water pipe 39 is heated by the exhaust gas having a small heat capacity and supplied to the adsorption pipe 6A or the adsorption pipe 6B, it is difficult to raise the temperature of the adsorbents 5A and 5B. Therefore, it becomes difficult to regenerate the adsorbents 5A and 5B at an early stage, and the cooling performance is deteriorated.

  Therefore, when the cooling switch 44 is operated by the vehicle occupant, the ECU 43 of the adsorption air conditioner 1 according to the present embodiment has the engine cooling water temperature below the predetermined temperature T1 ° C. based on the detection information of the water temperature sensor 45. It is determined whether or not. When the ECU 43 determines that the engine cooling water temperature is lower than the predetermined temperature T1 ° C., the ECU 43 operates the water pumps 14, 17, 23 and the centrifugal blower 21 to distribute the cooling water and air.

  Further, as shown in FIG. 5, the ECU 43 switches the steam valve 42 to the closed position and drives the actuator 37a to switch the switching valve 37 to the first switching position. Further, the four-way valve 15 is switched to the first communication position and the four-way valve 22 is switched to the second communication position. For this reason, the flow of the cooling water is in the first state.

  Further, the ECU 43 switches the steam valve 42 to the open position and switches the three-way valve 41 to the first communication position. For this reason, the steam pipe 38 communicates with the adsorption pipe 7A, and the water W2 in the steam pipe 38 receives the heat of the high-temperature exhaust gas and evaporates to become steam having a temperature higher than that of the cooling water.

  At this time, in addition to the high-temperature cooling water flowing through the cooling water pipe 39, the cooling water pipe 8 and the adsorption pipe 6A, as shown by C1, the vapor medium flows between the vapor pipe 38 and the adsorption pipe 7A, thereby adsorbing. An intermediate temperature steam that is higher than the engine coolant temperature and lower than the exhaust gas temperature is supplied to the pipe 7A. For this reason, the temperature increase rate of the adsorbent 5A is further increased as compared with that in the strong cooling mode, and the regeneration capability of the adsorbent 5A is enhanced.

  Next, the ECU 43 switches the four-way valve 15 to the second communication position as shown in FIG. 6 when the first state has elapsed for a predetermined time or longer, that is, when the regeneration of the adsorbent 5A is completed. The direction valve 22 is switched to the first communication position. For this reason, the flow of the cooling water is in the second state.

  Further, the ECU 43 switches the three-way valve 41 to the second communication position. When the three-way valve 41 is switched to the second communication position while the steam valve 42 is switched to the open position, the flow of the cooling water is the same as the second state described above.

  At this time, in addition to the high-temperature cooling water flowing through the cooling water pipe 39, the cooling water pipe 8 and the adsorption pipe 6B, the vapor medium flows between the vapor pipe 38 and the adsorption pipe 7B as shown by the arrow C2, Medium temperature steam that is higher than the engine coolant temperature and lower than the exhaust gas temperature is supplied to the adsorption pipe 7B. For this reason, the temperature increase rate of the adsorbent 5B is further increased as compared with that in the strong cooling mode, and the regeneration capacity of the adsorbent 5A is enhanced.

  The ECU 43 returns to the first state when a certain time has elapsed. In this way, the adsorption air conditioner 1 is continuously operated while repeating the first state and the second state at regular intervals.

For this reason, when the rapid cooling mode is executed in an operating state where the engine coolant temperature is low, such as immediately after the engine 9 is started, the regeneration capacity of the adsorbents 5A and 5B can be increased. Therefore, in the first state, the evaporation condensation pipe 4B of the adsorber 2B can function as an evaporator, and the evaporation condensation pipe 4A of the adsorber 2A can function as a condenser.
Further, in the second state, the evaporative condensation pipe 4A of the adsorber 2A can function as an evaporator, and the evaporative condensation pipe 4B of the adsorber 2B can function as a condenser, thereby improving the cooling performance. Can do.

(Non-heat recovery mode)
Next, the operation of the adsorption air conditioner 1 in the non-heat recovery mode will be described with reference to FIGS.
The ECU 43 determines whether or not the engine coolant temperature is equal to or higher than the set temperature T2 ° C. based on the detection information of the water temperature sensor 45 when the cooling switch 44 is operated by a vehicle occupant. When the ECU 43 determines that the engine coolant temperature is equal to or higher than the set temperature T2 ° C., the ECU 43 operates the water pumps 14, 17, 23 and the centrifugal blower 21 to distribute the coolant and air.

  As shown in FIG. 7, the ECU 43 switches the steam valve 42 to the closed position and drives the actuator 37a to switch the switching valve 37 to the second switching position. Further, the four-way valve 15 is switched to the first communication position and the four-way valve 22 is switched to the second communication position. For this reason, the flow of the cooling water is in the first state.

  At this time, since the cooling water flowing through the cooling water pipe 8 is not heated by the exhaust gas, the cooling water supplied to the cooling water pipe 39 is not excessively heated, and the cooling performance of the engine 9 is deteriorated. Can be prevented.

  Next, the ECU 43 sets the four-way valve 15 to the second communication position as shown in FIG. 9 when the first state has elapsed for a certain time or longer, that is, when the regeneration of the adsorbent 5A is completed. At the same time, the four-way valve 22 is switched to the first communication position. For this reason, the flow of the cooling water is in the second state.

  At this time, since the cooling water flowing through the cooling water pipe 8 is not heated by the exhaust gas, the cooling water supplied to the cooling water pipe 39 is not excessively heated, and the cooling performance of the engine 9 is deteriorated. Can be prevented.

  On the other hand, in the casing 3B of the adsorber 2B, when the adsorbent 5B adsorbs the evaporated refrigerant and promotes evaporation, the adsorbent 5B generates heat (condensation heat) when adsorbing the evaporated refrigerant. When the temperature of the adsorbent 5B rises, the moisture adsorption capacity decreases, so that the cooling water is circulated between the sub-radiator 13 and the adsorption pipe 6B to suppress the temperature rise of the adsorbent 5B.

  At this time, if the cooling water is excessively heated by the exhaust gas, in order to enhance the cooling performance of the cooling water supplied to the adsorption pipe 6B in order to cool the adsorbent 5A heated to a high temperature in the first state. In addition, the load on the sub radiator 13 increases.

  The adsorption-type air conditioner 1 of the present embodiment does not need to improve the cooling performance of the cooling water supplied to the adsorption pipe 6B because the cooling water is not heated by the exhaust gas when the non-heat recovery mode is entered. The load of the sub radiator 13 can be reduced. In addition, when the cooling water is supplied to the adsorption pipe 6A in the first state, the load on the sub-radiator 13 can be reduced as in the second state.

  In the non-heat recovery mode, when the cooling switch 44 is not operated, the ECU 43 controls the switching valve 37 to the second switching position on the condition that the engine cooling water temperature has become equal to or higher than the set temperature T2. I do. Even if it does in this way, it can prevent that the cooling water supplied to the cooling water pipe | tube 39 raises temperature too much, and can prevent that the cooling performance of the engine 9 deteriorates.

  As described above, the adsorption-type air conditioner 1 of the present embodiment has the steam pipe 38 that generates steam using the heat of the exhaust gas and the cooling water pipe 39 that heats the cooling water using the heat of the exhaust gas. Heat receiving passage 35, bypass passage 36 for bypassing heat receiving passage 35 and circulating exhaust gas, first switching position for switching the passage through which exhaust gas flows to heat receiving passage 35, and second switching for switching to bypass passage 36 An exhaust heat recovery unit 31 including a switching valve 37 that can be switched to a position is provided.

  Further, the adsorption type air conditioner 1 accommodates the refrigerant W and the adsorbents 5A and 5B, respectively, exhibits the cooling ability by the evaporating action of the refrigerant W1 heated by the evaporating and condensing pipes 4A and 4B, and evaporates the refrigerant ( Adsorbers 2A and 2B that desorb the refrigerant (evaporated refrigerant) adsorbed on the adsorbents 5A and 5B by adsorbing the evaporated refrigerant) on the adsorbents 5A and 5B and heating the adsorbents 5A and 5B. It has.

  Further, the adsorption type air conditioner 1 causes the vapor to flow between the adsorbent 5A and the vapor pipe 38 of the adsorber 2A, and the adsorbent 5B and the vapor pipe 38 of the adsorber 2B. The adsorbing pipe 7B to be circulated, the adsorbing pipe 6A for circulating the cooling water between the adsorbent 5A and the cooling water pipe 39 via the cooling water pipe 8, and the adsorbent 5B and the cooling water pipe 39 via the cooling water pipe 8 And an adsorption pipe 6B for circulating the cooling water.

  Further, the adsorption type air conditioner 1 is switchable between a first communication position where the steam pipe 38 and the adsorption pipe 7A are communicated and a second communication position where the steam pipe 38 and the adsorption pipe 7B are communicated. The four-way valve 15 that can be switched between the first communication position for communicating the cooling water pipe 39 and the adsorption pipe 6A and the second communication position for communicating the cooling water pipe 39 and the adsorption pipe 6B, and the steam pipe 38 are opened. And a steam valve 42 that can be freely opened and closed between an open position for closing and a closed position for closing the steam pipe 38.

  For this reason, the adsorption air-conditioning apparatus 1 has the cooling switch 44 when the temperature of the cooling water is low, such as immediately after the engine 9 is started, and the temperature of the cooling water supplied to the adsorbents 5A, 5B is low. And the four-way valve 15 is switched to the first switching position and the steam valve 42 is switched to the open position under the condition that the cooling water temperature is lower than the predetermined temperature T1 ° C. Thus, the adsorbents 5A and 5B and the vapor pipe 38 can be communicated with each other through the adsorption pipe 7A or the adsorption pipe 7B.

  Therefore, the vapor evaporated by the heat of the exhaust gas can be introduced into either one of the adsorbents 5A and 5B, and the adsorbents 5A and 5B are heated up early to increase the regeneration capacity of the adsorbents 5A and 5B. be able to.

  In addition, the other of the adsorbents 5A and 5B can exhibit cooling capacity by generating latent heat of evaporation by adsorbing the evaporation medium of the refrigerant heated by the evaporation condensation pipe 4A or the evaporation condensation pipe 4B. it can. As a result, the cooling capacity can be improved.

  Further, the ECU 43 switches to the strong cooling mode on the condition that the cooling switch 44 is operated and the cooling water temperature is equal to or higher than the predetermined temperature T1 ° C. and lower than the set temperature T2 ° C., and the four-way valve 15 is turned on. In addition to switching to the switching position 1, the steam valve 42 is switched to the closed position, so that the cooling water supplied to the adsorbents 5A and 5B can be heated by the exhaust gas.

  The cooling water supplied to the adsorbents 5A and 5B has a temperature rising rate slower than that of the vapor medium and a temperature lower than that of the vapor. However, the cooling water is set to a temperature sufficient to regenerate the adsorbents 5A and 5B by the cooling water pipe 39. The temperature can be raised. Therefore, the adsorbents 5A and 5B can be raised in temperature early to increase the regeneration capacity of the adsorbents 5A and 5B, and the cooling capacity can be improved.

  Further, the ECU 43 shifts to the non-heat recovery mode in which the heat recovery by the exhaust heat recovery device 31 is not performed on the condition that the cooling water temperature is equal to or higher than the set temperature T2 ° C. regardless of the operation of the cooling switch 44. Since the four-way valve 15 is switched to the second switching position and the steam valve 42 is switched to the closed position, the cooling water supplied to the adsorbents 5A and 5B can be prevented from being heated by the exhaust gas. .

  For this reason, it is possible to prevent the cooling water from being excessively heated regardless of the setting of the cooling operation mode, and it is possible to prevent the cooling performance of the engine 9 from deteriorating. Further, in the cooling operation mode, it is not necessary to supply cold cooling water to the high temperature adsorbents 5A and 5B heated by an excessive cooling water temperature, so that the load on the sub radiator 13 can be reduced.

  As described above, the adsorptive air conditioner according to the present invention has an effect of improving the cooling performance by improving the regeneration capacity of the adsorbent, and is provided in a vehicle or the like to cool the vehicle interior. It is useful as an adsorption type air conditioner.

  DESCRIPTION OF SYMBOLS 1 ... Adsorption-type air conditioner, 2A ... Adsorber (1st adsorber), 2B ... Adsorber (2nd adsorber), 4A, 4B ... Evaporation condensation piping (evaporation condensation part), 5A, 5B ... Adsorbent , 6A ... adsorption pipe (first liquid phase medium circulation part), 6B ... adsorption pipe (second liquid phase medium circulation part), 7A ... adsorption pipe (first vapor circulation part), 7B ... adsorption pipe ( (Second steam circulation section), 8 ... cooling water pipe (first liquid phase medium circulation section, second liquid phase medium circulation section), 15 ... four-way valve (third switching means), 31 ... exhaust heat recovery (Heat recovery device), 35 ... heat receiving passage (heat exchange passage portion), 36 ... bypass passage (bypass passage portion), 37 ... switching valve (first switching means), 38 ... steam pipe (steam heat receiving portion), 39 ... Cooling water pipe (liquid phase medium heat receiving part), 41 ... Three-way valve (second switching means), 42 ... Steam valve (opening / closing means), 43 ... EC (Switching control means), 44 ... cooling switch (switching control means), 45 ... water temperature sensor (switching control means)

Claims (6)

A heat exchange passage section having a steam heat receiving section for generating steam using the heat of the high temperature medium, a liquid phase medium heat receiving section for heating the liquid phase medium using the heat of the high temperature medium, and the heat exchange passage section. A bypass passage portion for bypassing and passing the high-temperature medium, a first switching position for switching the flow path through which the high-temperature medium flows to the heat exchange passage portion, and a second switching position for switching to the bypass passage portion are freely switchable. A heat recovery device comprising a first switching means,
Refrigerant and adsorbent are accommodated in each of them, and air-cooling ability is exhibited by the evaporating action of the refrigerant heated by the evaporating and condensing part, adsorbing the evaporated refrigerant to the adsorbent, and heating the adsorbent A first adsorber and a second adsorber for desorbing the refrigerant adsorbed on the adsorbent,
A first vapor circulation section for circulating the vapor medium between the adsorbent of the first adsorber and the vapor heat receiving section;
A second steam circulating section for circulating the steam medium between the adsorbent of the second adsorber and the steam heat receiving section;
A first liquid phase medium circulation unit for circulating the liquid phase medium between the first adsorbent and the liquid phase medium heat receiving unit;
A second liquid phase medium circulation unit for circulating the liquid phase medium between the second adsorbent and the liquid phase medium heat receiving unit;
A second communication position that is switchable between a first communication position that communicates the steam heat receiving section and the first steam circulation section and a second communication position that communicates the steam heat reception section and the second steam circulation section. Switching means;
A first communication position that communicates the liquid phase medium heat receiving section and the first liquid phase medium circulation section, and a second communication position that communicates the liquid phase medium heat reception section and the second liquid phase medium circulation section. A third switching means switchable to each other;
An adsorption-type air conditioner comprising an opening / closing means that is openable and closable between an open position for opening the steam heat receiving portion and a closing position for closing the steam heat receiving portion.   When the cooling operation mode is set and the transition to the rapid cooling mode in which rapid cooling is performed with a high temperature increase rate of the adsorbent, the first switching means is switched to the first switching position, and the opening and closing The adsorption type air conditioner according to claim 1, further comprising switching control means for switching means to the open position.   The switching control means changes the first switching means to the first when the cooling operation mode is set and the temperature rising rate of the adsorbent shifts to a strong cooling mode lower than the rapid cooling mode. The adsorption type air conditioner according to claim 1 or 2, wherein the opening / closing means is switched to the closed position.   The switching control means switches the first switching means to the second switching position when the mode is shifted to the non-heat recovery mode in which heat recovery by the heat recovery unit is not performed, and the opening / closing means is moved to the closed position. The adsorption type air conditioner according to claim 1, wherein the adsorption type air conditioner is switched to.   The adsorption type air conditioner according to claim 2, wherein the switching control means shifts to the rapid cooling mode on condition that the temperature of the liquid phase medium is lower than a predetermined temperature.   The switching control means shifts to the strong cooling mode on condition that the temperature of the liquid phase medium is equal to or higher than the predetermined temperature and lower than a preset temperature. Adsorption type air conditioner as described.

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