JP2018504235A - Air condenser and clothes dryer - Google Patents

Abstract

An air condenser (1) including a condensing air path (j) and a cooling pipe line (i) installed crossing each other, wherein the condensing air path (j) includes a first group of condensing air paths and a second group of condensing air paths. Including a condensing air passage, in which a suction air passage of the first group of condensing air passages and an outlet air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable, An air condenser (1) and a clothes dryer in which a blow-off air passage of an air passage and a suction air passage of a second group of condensing air passages are installed so as to be at least partially heat exchangeable. In the air condenser (1), heat is exchanged between the hot and humid air flowing out from the drum (3) of the clothes dryer and the air just before entering the heater (2) after being condensed by the air condenser (1). By installing the first group of condensing air channels and the second group of condensing air channels that can partially exchange heat, the residual heat of the high-temperature air in the condensing air channel (j) can be effectively recycled to reduce heat loss. This can be reduced, improving the heat exchange efficiency and achieving the purpose of energy saving.

Description

  The present invention relates to the field of clothes drying devices, and more particularly to an air condenser used in a clothes dryer and a clothes dryer having the air condenser.

  The condensers used in clothes dryers in the current market are generally cross air heat exchangers, which have only a single condensing air channel and cooling air channel that intersect. When used in a clothes dryer, the amount of intake heat in the condensing air passage is not sufficiently utilized, so that the heat efficiency is low and the energy loss is large.

  As shown in FIGS. 1-2, the structure of the said cross-type air heat exchanger and the air flow direction of the inside are shown typically. The principle of operation of the conventional condenser used in the clothes dryer is as follows. That is, in the process of using the clothes dryer, the air path passing through the conventional condensing clothes dryer is divided into a condensing air path j ′ and a cooling air path i ′, and the cooling air path i ′ The air is sucked into the clothes dryer by the fan and heat exchange is performed on the inner surface of the air condenser 1 ′, whereby the heat-exchanged air is heated and air is passed through the outlet of the cooling air passage. It is discharged from the condenser 1 '. The condensing air passage j ′ is a closed loop air passage, and air circulates in the condensing air passage j ′ formed between members such as the drum 3 ′ of the clothes dryer, the air condenser 1 ′, and the heater 2 ′. The saturated heated air 5 ′ before operating and passing through the air condenser in the drum 3 ′ is sucked into the air condenser 1 ′ by the fan, and heat is exchanged on the inner surface of the air condenser 1 ′. The moisture of the saturated heating air 5 ′ before passing through the water is condensed to become condensed water 9 ′, and then discharged from the air condenser 1 ′, and the unsaturated heating air 8 ′ discharged from the air condenser 1 ′ is used as the heater. Heated by 2 ′ to become heated dry air 4 ′, enters into the drum 3 ′ of the clothes dryer and comes into sufficient contact with the clothes, evaporates the moisture on the clothes surface to become water vapor, and again sucks into the air condenser 1 ′ To condense and form a closed loop circulation process. The direction of air flow in the cooling air passage i 'is as follows. That is, the room temperature dry air 6 ′ before passing through the air condenser enters the air condenser 1 ′ and exchanges heat with the saturated heating air 5 ′ before passing through the air condenser to become heated dry air 7 ′. It is discharged out of the air condenser 1 ′. In the clothes dryer using the conventional condenser, the amount of heat of the hot air discharged from the condenser in the cooling air passage i 'is lost, and a large amount of heat is wasted.

  Therefore, in the market, an air condenser used for a clothes dryer and a clothes dryer having the air condenser are urgently required. The condenser can recycle the amount of heat of the steam-containing hot air cooled in the condensing air path so as to preheat the steam-free air discharged to the heating member at a relatively low temperature, thereby saving energy. Is realized.

  The present invention proposes to submit an air condenser in order to solve the problem that the amount of heat of the heated air existing in the process of using the cross heat exchanger in the prior art is wasted and the heat exchange efficiency is low. One purpose.

  Another object of the present invention is to provide a clothes dryer with low energy loss during use and high heat exchange efficiency by installing the air condenser.

  In order to achieve the object, the present invention adopts the following technical means.

  An air condenser including a condensing air path and a cooling pipe line installed in an intersecting manner, wherein the condensing air path includes a first group of condensing air paths and a second group of condensing air paths, of which the first The suction air passage of the group condensing air passage and the air outlet air passage of the second group condensing air passage are installed so as to be at least partially heat-exchangeable, and the air outlet air passage of the first group condensing air passage and the air outlet of the second group An air condenser installed so that at least partly heat exchange with the suction air passage of the condensation air passage is possible.

  Further, the condensed air passage includes an intermediate air passage, and at least a part of the intermediate air passage is connected between the suction air passage and the outlet air passage of the first group of condensing air passages, and at least one other air passage. The intermediate air passage is connected between the suction air passage and the blowout air passage of the second group of condensing air passages, and the intermediate air passage and the cooling pipe are installed so as to cross each other so as to perform heat exchange. ing.

  Further, the first group of condensing air passages includes at least one first condensing fin, and the first condensing fin includes at least a suction air passage and a blow-off air passage of the first condensing air passage. The second group of condensing air passages includes at least one second condensing fin, wherein the second condensing fin includes at least a suction air passage and a blowing air passage of the second condensing air passage. And the first condensing air passage and the second condensing air passage are adjacent to each other, and their projections at least partially overlap to form the first condensing air passage. The first condensing fin and the second condensing fin are arranged so that the blow-off air passage of the air passage and the suction air passage of the second condensing air passage are installed adjacent to each other and their projections at least partially overlap each other. And are installed alternately.

  Further, the intermediate air passage is formed integrally with or separately from the suction air passage and the blow air passage of the first group condensing air passage and the second group condensing air passage.

  Further, the cooling pipe is used for introducing a low-temperature gas or liquid.

  Furthermore, it further includes four connection ports, and the first group of condensing air paths, the first group of condensing air paths, the second group of condensing air paths, and the second group The condensing air passages of the group are connected to each other.

  On the other hand, the present invention employs the following technical means.

  A clothes dryer including a drum and a heater, wherein the clothes dryer is provided with the air condenser as described above, and the drum is communicated with the first suction port and the second suction port of the air condenser. Clothing dryer.

  The beneficial effects of the present invention are as follows. In other words, the air condenser according to the present invention can partially exchange heat so that the hot and humid air flowing out from the drum of the clothes dryer and the air immediately before entering the heater are condensed by the air condenser and exchanged heat. By installing the first group of condensing air channels and the second group of condensing air channels, it is possible to pre-heat and simultaneously preheat the hot and humid air, effectively reducing the residual heat of the hot air in the condensing air channel. It is possible to reduce the heat loss, improve the heat exchange efficiency and achieve the purpose of energy saving.

  Since the air condenser is installed in the clothes dryer according to the present invention, and the residual heat of the air in the condensed air passage can be effectively recycled by the air condenser, the heat exchange of the heater for heating the air Efficiency increases by 14% to 20%, effectively reduces energy consumption, improves heat exchange efficiency, lower energy consumption of clothes dryer in use process, more environmentally friendly, clothes drying Improve market competitiveness of aircraft.

It is the schematic of the structure of the air condenser in a prior art, and the wind path direction which passes the said air condenser. It is a schematic diagram of the air flow direction inside the clothes dryer in a prior art. It is a structure schematic diagram of the air path of the air condenser which concerns on Example 1 of this invention. It is a structure schematic diagram of the 1st condensation fin concerning the example 1 of the present invention. It is a structure schematic diagram of the 2nd condensation fin concerning the example 1 of the present invention. It is a structural schematic diagram of a cooling sheet according to the first embodiment of the present invention. It is a schematic diagram of the air flow direction inside the condensation-type clothes dryer which concerns on this invention Example 1. FIG. It is a structure schematic diagram of the 1st condensation fin concerning the example 2 of the present invention. It is a structure schematic diagram of the 2nd condensation fin concerning the example 2 of the present invention. It is a structure schematic diagram of the combination of the 1st condensation fin concerning this invention Example 2 and the 2nd condensation fin. It is a structure schematic diagram of the air flow direction in the exhaust type clothes dryer which concerns on this invention Example 2. FIG. It is a structural schematic diagram of the air condenser which concerns on Example 3 of this invention. It is a structure schematic diagram of the air flow direction in the heat pump type clothes dryer which concerns on Example 3 of this invention.

i'-cooling air path, j'-condensing air path, 1'-air condenser, 2'-heater, 3'-drum, 4'-heated dry air, 5'-saturation before passing through the air condenser Heated air, 6'-room temperature dry air before passing through the air condenser, 7'-heated dry air, 8'-unsaturated heated air after passing through the air condenser, 9'-condensed water;
1-air condenser, 2-heater, 3-drum, 4-heated dry air, 5-saturated heated air, 6-room temperature dry air, 7-heated dry air, 8-unsaturated heated air, 9-condensed water, 10-heat exchange pipe, 11-cooling sheet, 111-ventilation hole, 12-first condensing fin, 121-first air guiding groove, 13-second condensing fin, 131-second air guiding groove, 23-overlapping region;
i-cooling duct, j-condensation air path, A-first inlet, B-second inlet, C-first outlet, D-second outlet.

  The technical means of the present invention will be further described below with reference to the drawings and specific embodiments.

  The present invention is an air condenser that includes a condensing air passage and a cooling pipe that are installed crossing each other, and the condensing air passage includes a first group of condensing air passages and a second group of condensing air passages. The suction air passage of the first group of condensing air passages and the outlet air passage of the second group of condensing air passages are at least partially installed so as to be capable of exchanging heat, and An air condenser in which the suction air passages of the two groups of condensing air passages are at least partially installed so as to be able to exchange heat is submitted. The condensed air passage includes an intermediate air passage, in which at least a part of the intermediate air passage is connected between the suction air passage and the outlet air passage of the first group of condensing air passages, and at least some other intermediate air passages. The air passage is connected between the suction air passage and the blow air passage of the second group of condensing air passages, so that the cold air or the refrigerant liquid in the cooling pipe can exchange heat with the intermediate air passage of the condensing air passage, The intermediate air duct and the cooling pipe are installed so as to cross each other.

Example 1
As shown in FIGS. 3-7, it is the structure of the air condenser of the condensation-type air clothes dryer which concerns on a present Example, and the air flow direction in the air condenser in a clothes dryer. The air condenser according to the present embodiment includes a condensing air path j and a cooling pipe line i installed in an intersecting manner, and the condensing air path j includes a first group of condensing air paths and a second group of condensing air paths. Among them, the suction air passage of the first group of condensing air passages and the outlet air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable, and the air blowing of the first group of condensing air passages. The passage and the suction air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable. The cooling pipe i is installed between the first group of condensing air paths and the second group of condensing air paths, and is used for passing a low-temperature gas or liquid. The heated air passing through the first group of condensed air paths and the second group of condensed air paths j of the condensed air path j exchanges heat with the low-temperature gas or liquid in the cooling pipe line i. As a further embodiment, the condensing air passage further includes an intermediate air passage, at least a portion of the intermediate air passage being connected between the suction air passage and the outlet air passage of the first group of condensing air passages, and at least other Some intermediate air passages are connected between the suction air passage and the blow air passage of the second group of condensing air passages. Heated air in the first group of condensing air passages and the second group of condensing air passages exchange heat with a low-temperature gas or liquid in the cooling pipe i in the intermediate air passage.

  The cooling pipe line i is composed of a cooling sheet 11, and the cooling sheets 11 are sequentially arranged over the entire thickness direction of the condenser. As shown in FIG. 6, it is the structure of the cooling sheet | seat 11 which concerns on a present Example, the ventilation hole 111 is opened by the cooling sheet 11, and the ventilation hole 111 has a flanging structure and distribute | circulates from the cooling pipe line i. Used to allow room temperature dry air to pass through. The shape of the ventilation hole 111 opened in the cooling sheet 11 may be an arbitrary shape as long as it can ensure that air can pass through the ventilation hole 111.

  The first group of condensing air passages j of the condensing air passage j includes at least one first condensing fin 12, and at least a suction air passage and a blow-off air passage of the first condensing air passage are formed in the first condensing fin. The second group of condensing air passages includes at least one second condensing fin 13, and the second condensing fin 13 is formed with a suction air passage and a blow-off air passage of the second condensing air passage. . The first group of condensing air paths is configured so that the first condensing fins 12 are sequentially arranged, and the second group of condensing air paths is configured such that the second condensing fins 13 are sequentially arranged, and the first The suction air passage and the blowout air passage of the condensing air passage of the group are formed so that the suction air passage and the blowout air passage of the first condensing air passage of the first condensing fins 12 are arranged, The suction air passage and the blowout air passage of the condensing air passage are formed such that the suction air passage and the blowout air passage of the second condensing air passage of the second condensing fin 13 are arranged. The first condensing fins 12 and the first condensing fins 12 and the second condensing air passages are disposed adjacent to each other, and their projections are at least partially overlapped with each other. Two condensing fins 13 are alternately arranged. Similarly, the outlet air passage of the first condensing air passage and the suction air passage of the second condensing air passage are installed adjacent to each other, and their projections at least partially overlap. The first condensing fins 12 and the second condensing fins 13 are alternately installed over the entire thickness direction of the air condenser. When designing the intermediate air passage of the condensing air passage, the intermediate air passage may be installed integrally with or separately from the suction air passage and the outlet air passage of the first group condensing air passage and the second air condensing air passage. Good.

  In order to ensure that the gas passing through the condensing air path j can pass along the direction of the air path, in the present embodiment, both the first condensing fins 12 and the second condensing fins 13 are guided. Grooves are installed. As a more specific embodiment, a first air guide groove 121 is installed in the first condensing fin 12, and the direction of the first air guide groove 121 is changed from the first suction port A of the condenser to the first of the condenser. The first air guide groove 121 is uniformly distributed along the width direction of the first air inlet and the first air outlet. A second air guide groove 131 is installed in the second condensing fin 13, and the direction of the second air guide groove 131 extends from the second suction port B of the condenser to the second outlet D of the condenser. In addition, the second air guide grooves 131 are uniformly distributed along the width direction of the second suction port B and the second air outlet D.

  In the present embodiment, a flanging structure is installed in the ventilation hole 111 of the cooling sheet 11, and the flanging structure supports the first condensing fin 12 and the second condensing fin 13 adjacent to each of the cooling sheet 11. It is used for. Therefore, the height of the flanging structure is equal to the width of the air guide grooves installed in the first condensation fins 12 and the second condensation fins 13. As a further embodiment, in this embodiment, the first air guide groove 121 has one end fixed to the cooling sheet 11 and the other end fixed to the first condensing fin 12. The second air guide groove 131 has one end fixed to the cooling sheet 11 and the other end fixed to the second condensing fin 13.

  As shown in FIG. 7, this embodiment further submits a clothes dryer including an air condenser 1, a heater 2, and a drum 3 for storing and drying clothes according to this embodiment. In the process of drying clothes by the clothes dryer according to the present embodiment, the flow direction of air and the change of air in the clothes dryer are as follows. That is, in the cooling pipe, the room temperature dry air 6 before passing through the air condenser enters the air condenser from the inlet of the cooling pipe, and the air condensing enters from the drum 3 into the condensing air path in the cooling pipe. After the heat exchange with the saturated heated air 5 before passing through the vessel, the room temperature dry air 6 becomes the heated dry air 7. In the condensing air passage, the saturated heated air 5 that has entered the air condenser 1 from the drum 3 enters the air condenser 1 from the first suction port A and the second suction port B of the air condenser 1 and heats. After being exchanged, heat is exchanged in the air condenser 1 to become heated dry air 7, which is discharged from the air condenser through the first blowout port C and the second blowout port D, respectively, and joined to the heater 2. It enters and is heated. Both heat exchanges are performed in the air condenser 1, while the air in the condensing air passage and the air in the cooling conduit exchange heat, and on the other hand, the air in the condensing air passage of the first group Heat exchanges with the air in the second group of condensing air paths. The airflow passing through the first air guide groove 121 of the first condensing fin 12 and the air current passing through the second air guide groove 131 of the second condensing fin 13 are the first condensing fin 12 and the second airflow. The condensation fins 13 join together and exchange heat. The airflow passing through the first air guide groove of the first condensing fin 12 is the saturated heating air 5 before passing through the air condenser, and passes through the second air guide groove 131 of the second condensing fin 13. The airflow is unsaturated heated air 8. The saturated heating air 5 before passing through the air condenser at the place where the first condensation fins 12 and the second condensation fins 13 overlap each other transmits the amount of heat to the unsaturated heating air 8 and preheats the air. The unsaturated heated air 8 after passing through the condenser precools the saturated heated air 5, whereby the room temperature dry air 6 in the cooling pipe i further cools the saturated heated air 5, and the generated condensed water 9. Can be easily discharged to the outside of the air condenser 1.

  Unsaturated heated air 8 after passing through the air condenser enters the heater 2, is heated by the heater 2, becomes heated dry air 4, and then enters the drum 3 to dry clothes to become saturated heated air 5. Enter the next air circulation.

  In the present embodiment, the first condensing fins 12, the second condensing fins 13, and the cooling sheet 11 are all manufactured from one material of PVC, PET, or aluminum sheet.

  As a preferred embodiment, the first condensing fin 12, the second condensing fin 13 and the cooling sheet 11 according to the present embodiment have a thickness of 0.2 mm to 0.4 mm.

  In the present embodiment, the air condenser 1 is partially exchanged so that the hot and humid air flowing out from the drum 3 of the clothes dryer and the air immediately before entering the heater 2 after being condensed by the air condenser 1 exchange heat. By installing the first group of condensing air channels and the second group of condensing air channels that can exchange heat, it is possible to preheat and simultaneously cool the hot and humid air, and the residual heat of the hot air in the condensing air channel Can be effectively recycled, heat loss can be reduced, heat exchange efficiency can be improved, and energy saving purposes can be achieved.

Example 2
This example presents an air condenser and an exhaust clothes dryer. As shown in FIGS. 8-10, it is the structure of the air condenser which concerns on a present Example, and similarly to Example 1, the air condenser which concerns on a present Example crosses the condensing air path installed and cooling A condensing air path including a first group of condensing air paths and a second group of condensing air paths, of which a first group of condensing air paths and a second group of condensing air paths The blowing air passage is at least partially installed so as to be able to exchange heat, and the blowing air passage of the first group of condensing air passages and the suction air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable. Has been. The cooling pipe is installed between the first group of condensing air paths and the second group of condensing air paths, and is used for passage of refrigerant gas or refrigerant liquid. The heated air that passes through the first group of condensed air paths and the second group of condensed air paths exchanges heat with the refrigerant gas or refrigerant liquid in the cooling pipe.

  The cooling pipe is composed of a cooling sheet 11, and the cooling sheets 11 are sequentially arranged over the entire thickness direction of the condenser. Ventilation holes are opened in the cooling sheet 11, and the ventilation holes have a flanging structure and are used for passing room temperature dry air flowing from the cooling pipeline. The shape of the vent hole opened in the cooling sheet 11 may be an arbitrary shape, and it is only necessary to ensure that air can pass through the vent hole. In the present embodiment, the first condensing fins in the first group of condensing air passages and the second condensing fins in the second group of condensing air passages have the same structure and installation method as those of the first embodiment.

  The first group of condensing air paths is configured such that the first condensing fins 12 are sequentially arranged, and the condensing air path of the second group is configured such that the second condensing fins 13 are sequentially arranged. Has been. The first condensing fins 12 and the second condensing fins 13 are alternately installed over the entire thickness direction of the air condenser. In order to ensure that the gas passing through the condensing air passage can pass along the direction of the air passage, in the present embodiment, both the first condensing fins 12 and the second condensing fins 13 are provided with air guiding grooves. Is installed. As a more specific embodiment, a first air guide groove 121 is installed in the first condensing fin 12, and as shown in FIG. 11, the direction of the first air guide groove 121 is the first suction of the condenser. It extends from the mouth A to the first outlet C of the condenser, and the first air guide grooves 121 are uniformly distributed along the width direction of the first inlet A and the first outlet C. . A second air guide groove 131 is installed in the second condensing fin 13, and the direction of the second air guide groove 131 extends from the second suction port B of the condenser to the second outlet D of the condenser. In addition, the second air guide grooves 131 are uniformly distributed along the width direction of the second suction port B and the second air outlet D.

  In this embodiment, a flanging structure is installed in the ventilation hole of the cooling sheet 11, and the flanging structure supports the first condensing fin 12 and the second condensing fin 13 adjacent to the cooling sheet 11. It is used. Therefore, the height of the flanging structure is equal to the width of the air guide grooves installed in the first condensation fins 12 and the second condensation fins 13. As a further embodiment, in this embodiment, the first air guide groove 121 has one end fixed to the cooling sheet 11 and the other end fixed to the first condensing fin 12. The second air guide groove 131 has one end fixed to the cooling sheet 11 and the other end fixed to the second condensing fin 13.

  Among them, the first condensing fins 12 and the second condensing fins 13 form an overlapping region 23 in the process of forming the condensing air path. In the overlapping region 23, the air condenser according to the present embodiment is used for the exhaust-type clothes dryer, and therefore the first air guide groove 121 in the first condensing fin 12 and the second air guide in the second condensing fin 13 are used. Saturated heated air 5 that has entered the air condenser from the air groove 131 exchanges heat with the unsaturated heated air 8 in the second condensing fins 13 and the first condensing fins 12 in the overlapping region 23.

  As shown in FIG. 11, it is an air path circulation system of the internal air of the exhaust type clothes dryer according to the present embodiment, and includes a cooling pipe and a condensing air path. The room temperature dry air 6 enters the cooling pipe and is subjected to heat exchange to become heated dry air 7, then enters the heater 2, and the heated dry air 7 heated by the heater 2 becomes the heated dry air 4, and the drum 3 Get inside and dry clothes. After drying the clothes, the heated and dried air 4 becomes the saturated heated air 5 and enters the air condenser 1 through the first suction port A and the second suction port B to exchange heat, as shown in FIGS. Thus, after the heat exchange in the air condenser 1, the saturated heated air 5 becomes the unsaturated heated air 8, and the outside of the air condenser 1 through the first air outlet C and the second air outlet D. To be discharged.

Example 3
The present embodiment presents an air condenser used in a heat pump clothes dryer and a heat pump clothes dryer using the air condenser. As shown in FIGS. 12 and 13, the structure of the air condenser according to the present embodiment and the air circulation path inside the heat pump clothes dryer.

  The present embodiment is basically the same as the structure of the air condenser in the first and second embodiments. The distinction is that a mounting hole is provided in the cooling sheet 11 according to the present embodiment, and a heat exchange tube 10 for introducing condensed gas or condensate is attached to the mounting hole.

  In the present embodiment, the drum 3 of the heat pump clothes dryer is communicated with the first suction port A and the second suction port B of the air condenser 1, and the heater 2 is connected to the first outlet C of the air condenser 1. And the second air outlet D.

  Saturated heated air 5 discharged from the drum 3 enters the air condenser 1 through the first suction port A and the second suction port B, and exchanges heat with the condensed gas or condensate introduced into the heat exchange pipe 10. After that, it becomes unsaturated heated air 8 and is discharged from the first air outlet C and the second air outlet D to the outside of the air condenser 1. At the same time, the condensed water 9 generated in the heat exchange process is dropped through the heat exchange pipe 10 and discharged to the outside of the air condenser 1. Unsaturated heated air 8 after passing through the air condenser enters the heater 2, is heated and becomes heated dry air 4, enters the drum 3 again, and continues to dry clothes.

  Thereafter, the air circulation path is repeated until the drying of the clothes is completed.

  Since the air condenser is installed in the clothes dryer according to the present invention, and the air condenser can effectively recycle the residual heat of the air in the condensing air passage, the heat exchange of the heater for heating the air Efficiency increases by 14% to 20%, effectively reduces energy consumption, improves heat exchange efficiency, lower energy consumption of clothes dryer in use process, more environmentally friendly, clothes drying Improve market competitiveness of aircraft.

  Of course, the above-described embodiments of the present invention are merely examples for clearly explaining the present invention, and do not limit the embodiments of the present invention. Those skilled in the art can make various other changes or variations based on the above description. Here, it is not necessary to list all the embodiments, and it is not possible to list all the embodiments. Any modification, equivalent replacement and improvement should be included in the claims of the present invention without departing from the spirit and principle of the present invention.

Claims (7)

An air condenser including a condensing air passage and a cooling pipe installed crossing each other,
The condensed air path includes a first group of condensed air paths and a second group of condensed air paths,
The suction air passage of the first group of condensing air passages and the outlet air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable,
An air condenser, characterized in that the outlet air passage of the first group of condensing air passages and the suction air passage of the second group of condensing air passages are installed so as to be at least partially heat exchangeable. The condensed air passage includes an intermediate air passage;
At least a portion of the intermediate air passage is connected between the suction air passage and the outlet air passage of the first group of condensing air passages;
At least some other intermediate air passages are connected between the suction air passage and the blow air passage of the second group of condensing air passages;
The air condenser according to claim 1, wherein the intermediate air passage and the cooling pipe are installed so as to cross each other so as to perform heat exchange. The first group of condensing air passages includes at least one first condensing fin, and at least a suction air passage and a blowing air passage of the first condensing air passage are formed in the first condensing fin,
The second group of condensing air passages includes at least one second condensing fin, and at least a suction air passage and a blowing air passage of the second condensing air passage are formed in the second condensing fin,
The suction air passage of the first condensing air passage and the blow-off air passage of the second condensing air passage are installed adjacent to each other, and their projections overlap at least partially, and the air blowing of the first condensing air passage The first condensing fins (12) and the second condensing fins (12) are arranged so that the air passages and the suction air passages of the second condensing air passages are adjacent to each other and their projections at least partially overlap each other. 13) and the air condenser according to claim 2, wherein the air condenser is installed alternately.   The said intermediate | middle air path is formed integrally or separately with the suction air path and the blowing air path of the 1st group condensing air path and the 2nd group condensing air path. Air condenser.   The air condenser according to claim 1, wherein the cooling pipe is used for introducing a low-temperature gas or liquid.   Further comprising four connection ports, the first group of condensing air paths, the first group of condensing air paths, the second group of condensing air paths, and the second group The air condenser according to claim 1, wherein the outlet air passages of the condensing air passage are connected to each other. A clothes dryer comprising a drum (3) and a heater (2),
The air condenser (1) according to any one of claims 1 to 6 is installed in the clothes dryer,
The clothes dryer, wherein the drum (3) communicates with the first suction port (A) and the second suction port (B) of the air condenser (1).