Surface cooling rotary dehumidifier

Abstract

The utility model relates to the technical field of dehumidifiers, in particular to a surface cooling rotary dehumidifier. The rotating wheel comprises a main box body, an inner cavity of the main box body is divided into a condensation cavity and a heating cavity by a rotating wheel body, a first heat exchange fin and a second heat exchange fin are installed in the condensation cavity and the heating cavity respectively, a semiconductor chilling plate is installed on the side wall, where the condensation cavity is located, in the main box body, and the refrigeration end of the semiconductor chilling plate faces inwards and is connected with the first heat exchange fin. A heat pipe heat exchanger with one end connected with the heating end of the semiconductor chilling plate is installed on the box wall of the main box body, and the other end of the heat pipe heat exchanger is connected with the second heat exchange fin after crossing the rotating wheel body. According to the utility model, the utilization of energy in the rotary dehumidifier is optimized, and the energy consumption in the whole operation process of the rotary dehumidifier is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidifiers, in particular to a surface-cooled rotary dehumidifier. Background Art

[0002] The rotary dehumidifier uses a slowly rotating honeycomb hygroscopic rotary wheel coated with an adsorbent on its surface to absorb water vapor in the ambient air, and heats the rotary wheel at high temperature to dehydrate the adsorbent to achieve continuous dehumidification.

[0003] Most of the traditional rotary dehumidifiers are described in the text of the Chinese patent publication number CN117646942A, which is called a low-temperature rotary dehumidifier unit. They are provided with a dehumidification channel for dehumidification and a regeneration channel for dehydrating the rotary body. A surface cooler is provided in the dehumidification air inlet area at the air inlet end of the dehumidification channel to condense and dehumidify the gas before adsorption through the rotary body. In addition, a heater is also provided in the regeneration channel to heat the regeneration gas entering the rotary body to heat and dehydrate the dehumidification rotary wheel. In actual implementation, an outlet heater is also provided at the outlet end of the dehumidification channel to reduce the temperature difference between the gas discharged after dehumidification and the indoor gas. In the traditional rotary dehumidifier, the surface cooler, the heater and the outlet heater are three independent mechanisms distributed in the dehumidification channel and the regeneration channel. In fact, the surface cooler will generate a large amount of working heat during operation. The traditional dehumidifier not only fails to utilize the above working heat, but also affects the overall condensation effect of the dehumidification channel, which increases the overall energy consumption of the rotary dehumidifier, so it is urgent to solve it. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a surface-cooled rotary dehumidifier, which optimizes the utilization of energy in the rotary dehumidifier and reduces the energy consumption during the overall operation of the rotary dehumidifier.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A surface-cooled rotary dehumidifier comprises a main box body, the inner cavity of the main box body is divided by a rotary body to form a condensing chamber and a heating chamber, the condensing chamber and the heating chamber are respectively provided with a first heat exchange fin, a semiconductor refrigeration plate is provided on the side wall of the main box body where the condensing chamber is located, the cooling end of the semiconductor refrigeration plate faces inward and is connected to the first heat exchange fin, a heat pipe heat exchanger with one end connected to the heating end of the semiconductor refrigeration plate is provided on the box wall of the main box body, and the other end of the heat pipe heat exchanger is connected to the second heat exchange fin after passing over the rotary body.

[0007] As a further solution of the utility model: the outer wall of the main box body includes an aluminum shell layer, an epoxy resin filling layer and an insulation layer distributed in sequence from the inside to the outside, the semiconductor refrigeration plate is installed on the aluminum shell layer, and the heating end of the semiconductor refrigeration plate and the heat pipe exchanger are both located in the epoxy resin filling layer.

[0008] As a further solution of the utility model: thermal conductive silicone grease is arranged between the heating end of the semiconductor refrigeration plate and the heat pipe heat exchanger.

[0009] As a further solution of the utility model: the condensing chamber and the heating chamber are distributed in sequence along the horizontal direction, and semiconductor refrigeration plates and heat pipe heat exchangers are arranged on the front and rear side walls of the main box body. The semiconductor refrigeration plates are distributed in a dot matrix on the side walls of the main box body, and the heat pipe heat exchangers are arranged to be horizontally distributed and in several groups corresponding to the number of rows of semiconductor refrigeration plates, and each group of heat pipe heat exchangers is connected to the heating ends of all the semiconductor refrigeration plates in the corresponding row.

[0010] As a further solution of the utility model: the first heat exchange fins and the second heat exchange fins are both distributed horizontally, and the first heat exchange fins and the second heat exchange fins are set to a number corresponding to the number of rows of semiconductor refrigeration plates, and the front and rear sides of the first heat exchange fins are respectively connected to the cooling ends of all the semiconductor refrigeration plates in the corresponding rows on the front and rear walls of the main box body, and the front and rear sides of all the second heat exchange fins are respectively connected one by one to several groups of heat pipe exchangers on the front and rear walls of the main box body.

[0011] As a further solution of the utility model: the dehumidifier also includes an air inlet filter assembly located at the front end of the air inlet of the condensing chamber of the main box, and the air inlet filter assembly includes a return air fan and a G4 primary filter.

[0012] As a further solution of the utility model: the wheel body is located as a whole in the inner cavity of the main box body, and the heating cavity and the condensing cavity are respectively equipped with a heat exchange cover and an isolation cover eccentrically distributed at the end of the wheel body. The heat exchange cover and the isolation cover are symmetrically distributed at both ends of the wheel body, and the adjacent ends of the heat exchange cover and the isolation cover close to the wheel body are connected to the wheel body, and the separated ends of the isolation cover are respectively connected to the inner cavity of the air inlet filter assembly and the outside of the main box body through pipes. The outer wall of the main box body is equipped with an electric auxiliary heat blower whose input and output ends are both connected to the heat exchange cover, and the regeneration channel is formed by the inner cavities of the heat exchange cover and the isolation cover.

[0013] As a further solution of the present invention: the outer wall of the heat exchange cover is fitted with the second heat exchange fins.

[0014] As a further solution of the utility model: the dehumidification exhaust port of the dehumidifier is arranged on the top of the main box body located at the heating chamber, and the dehumidification exhaust port is connected to the air supply fan.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Utilizing the characteristic of semiconductor refrigeration plate that one end is cooling and the other end is heating, the cooling end of the semiconductor refrigeration plate cools the condensing chamber. In addition, the heat energy of the heating end of the semiconductor refrigeration plate is introduced into the heating chamber through the heat pipe heat exchanger, and the heat energy is continuously exchanged in the heating chamber, so that the heat outside the condensing chamber is continuously and quickly exported to the heating chamber, which can effectively reduce the influence of the heat energy generated in the refrigeration process on the refrigeration effect of the condensing chamber, thereby reducing the energy consumption in the refrigeration process. In addition, when the condensing chamber is dehydrated and dehumidified and the gas after adsorption and dehumidification by the rotor body enters the heating chamber, the gas can be heated by the heating chamber and then discharged into the room to reduce the temperature difference between the gas discharged into the room and the indoor air; in addition, the heat energy of the heating chamber can also be used to assist in heating the return air gas dried and heated by the rotor body in the return air channel, which optimizes the utilization of energy in the rotary dehumidifier and reduces the energy consumption during the overall operation of the rotary dehumidifier.

[0017] 2. The outer wall of the main box includes an aluminum shell layer, an epoxy resin filling layer and a thermal insulation layer which are distributed from the inside to the outside, which can achieve a good thermal insulation effect on the inner cavity of the main box. In addition, the semiconductor refrigeration chip is installed on the aluminum shell layer, and the heating end of the semiconductor refrigeration chip and the heat pipe heat exchanger are both located in the epoxy resin filling layer, which effectively reduces the heat loss of the heat pipe heat exchanger during the heat conduction process.

[0018] 3. Thermal conductive silicone grease is provided between the heating end of the semiconductor refrigeration sheet and the heat pipe heat exchanger, which improves the heat exchange effect between the semiconductor refrigeration sheet and the heat pipe heat exchanger.

[0019] 4. The semiconductor refrigeration sheets are distributed in a dot matrix on the side wall of the main box, which further ensures the uniformity of cooling on one side of the condensing chamber. The heat pipe heat exchangers are arranged in a horizontal distribution and correspond to several groups of rows of semiconductor refrigeration sheets. Each group of heat pipe heat exchangers is connected to the heating ends of all semiconductor refrigeration sheets in the corresponding row, which also enables the heat pipe heat exchangers to heat the heating chamber in layers from top to bottom, and also ensures the uniformity of heating on one side of the heating chamber.

[0020] 5. The first heat exchange fin and the second heat exchange fin can realize stratified cooling and stratified heating of the condensing chamber and the heating chamber, thereby improving the uniformity of heat exchange of the gas entering the condensing chamber and the heating chamber.

[0021] 6. Use the return air fan to guide the gas to the condensation chamber and filter it through the G4 primary filter to improve the cleanliness of the dehumidified air.

[0022] 7. The heat exchange between the gas in the regeneration channel and the heating chamber is realized through the heat exchange cover, and the heating chamber can perform auxiliary heating on the regeneration gas in the regeneration channel, which further improves the energy utilization rate and reduces the energy consumption of the electric auxiliary heating fan.

[0023] 8. The outer wall of the heat exchange cover is fitted with the second heat exchange fins, which further improves the heat exchange effect between the second heat exchange fins and the heat exchange cover, thereby improving the heating effect of the regeneration gas in the heat exchange cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the main box in the utility model.

[0025] Figure 2 It is a schematic diagram of the side section structure of the condensation chamber in the utility model.

[0026] Figure 3 for Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0027] Figure 4 It is a schematic diagram of the side section structure of the heating chamber in the utility model.

[0028] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0029] Figure 6 It is a structural schematic diagram of the utility model.

[0030] Figure 7 It is a schematic diagram of the top structure of the utility model.

[0031] Figure 8 It is a schematic diagram of the workflow of the utility model.

[0032] In the figure: 10, main box body; 11, aluminum shell layer; 12, epoxy resin filling layer; 13, insulation layer; 14, semiconductor refrigeration plate; 15, heat pipe heat exchanger; 16, thermal grease; 17, first heat exchange wing; 18, second heat exchange wing; 20, rotor body; 30, electric auxiliary heat blower; 41, isolation cover; 42, heat exchange cover; 50, dehumidification exhaust port; 60, air inlet filter assembly; 61, G4 primary filter; 62, return air fan; 70, supply air fan. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] For ease of understanding, the specific structure and working mode of the utility model are further described below in conjunction with the accompanying drawings:

[0035] The specific structure of the utility model refers to Figure 1-8 As shown, its main structure includes a main box body 10 constituting the main structure of the dehumidifier, wherein the inner cavity of the main box body 10 is divided by a rotor body 20 to form a condensation chamber and a heating chamber. Specifically, the condensation chamber is equipped with a first heat exchange fin 17, and a semiconductor refrigeration plate 14 is installed on the side wall where the condensation chamber is located in the main box body 10. The cooling end of the semiconductor refrigeration plate 14 faces inward and is connected to the first heat exchange fin 17. The first heat exchange fin 17 is cooled by the cooling end of the semiconductor refrigeration plate 14, so as to realize condensation, dehydration and dehumidification of the gas. A second heat exchange fin 18 is installed in the heating chamber, and a heat pipe heat exchanger 15 with one end connected to the heating end of the semiconductor refrigeration plate 14 is installed on the box wall of the main box body 10. The other end of the heat pipe heat exchanger 15 passes over the rotor body 20 and is connected to the second heat exchange fin 18, thereby heating the second heat exchange fin 18. By utilizing the characteristic of semiconductor refrigeration plate 14 that one end is cooling and the other end is heating, the cooling end of semiconductor refrigeration plate 14 cools the condensing chamber. In addition, the heat energy of the heating end of semiconductor refrigeration plate 14 is introduced into the heating chamber through heat pipe heat exchanger 15, and the heat energy is continuously exchanged in the heating chamber, so that the heat outside the condensing chamber is continuously and quickly exported to the heating chamber, which can effectively reduce the influence of the heat energy generated in the refrigeration process on the refrigeration effect of the condensing chamber, thereby reducing the energy consumption in the refrigeration process. In addition, when the condensing chamber is dehydrated and dehumidified and the gas after adsorption and dehumidification by the rotor body 20 enters the heating chamber, the gas can be heated by the heating chamber and then discharged into the room to reduce the temperature difference between the gas discharged into the room and the indoor air; in addition, the heat energy of the heating chamber can also be used to assist in heating the return air gas dried and heated by the rotor body 20 in the return air channel, which optimizes the utilization of energy in the rotary dehumidifier and reduces the energy consumption during the overall operation of the rotary dehumidifier.

[0036] Further, such as Figure 1 As shown, the outer wall of the main box body 10 includes an aluminum shell layer 11, an epoxy resin filling layer 12 and a heat preservation layer 13 which are sequentially distributed from the inside to the outside, and can achieve a good heat preservation effect on the inner cavity of the main box body 10. Figure 3 and Figure 5 As shown, the semiconductor refrigeration plate 14 is installed on the aluminum shell layer 11, and the heating end of the semiconductor refrigeration plate 14 and the heat pipe heat exchanger 15 are both located in the epoxy resin filling layer 12, which effectively reduces the heat loss of the heat pipe heat exchanger 15 during the heat conduction process.

[0037] Furthermore, Figure 3 As shown, a thermal conductive silicone grease 16 is provided between the heating end of the semiconductor refrigeration sheet 14 and the heat pipe heat exchanger 15 , thereby improving the heat exchange effect between the semiconductor refrigeration sheet 14 and the heat pipe heat exchanger 15 .

[0038] On the basis of the above, if Figure 1-4As shown, the condensing chamber and the heating chamber are sequentially distributed in the horizontal direction, and semiconductor cooling sheets 14 and heat pipe heat exchangers 15 are arranged on the front and rear side walls of the main box 10. By cooling both sides of the condensing chamber and heating both sides of the heating chamber, the uniformity of cooling in the condensing chamber and heating in the heating chamber is improved. In addition, the semiconductor cooling sheets 14 are distributed in a dot matrix on the side walls of the main box 10, which further ensures the uniformity of cooling on one side of the condensing chamber. The heat pipe heat exchangers 15 are arranged in a horizontal distribution and correspond to the number of rows of semiconductor cooling sheets 14. Each group of heat pipe heat exchangers 15 is connected to the heating ends of all semiconductor cooling sheets 14 in the corresponding row, so that the heat pipe heat exchangers 15 heat the heating chamber in layers from top to bottom, which also ensures the uniformity of heating on one side of the heating chamber.

[0039] Further, such as Figure 2 and Figure 4 As shown, the first heat exchange fin 17 and the second heat exchange fin 18 are both horizontally distributed, and the first heat exchange fin 17 and the second heat exchange fin 18 are set to a number corresponding to the number of rows of semiconductor refrigeration sheets 14, so that the first heat exchange fin 17 and the second heat exchange fin 18 can realize layered cooling and layered heating of the condensation chamber and the heating chamber, and improve the uniformity of heat exchange of the gas entering the condensation chamber and the heating chamber. Specifically, the front and rear sides of the first heat exchange fin 17 are respectively connected to the cooling ends of all the semiconductor refrigeration sheets 14 in the corresponding rows on the front and rear walls of the main box 10, ensuring the cooling effect of the first heat exchange fin 17; the front and rear sides of all the second heat exchange fins 18 are respectively connected to a plurality of groups of heat pipe heat exchangers 15 on the front and rear walls of the main box 10, ensuring the heating effect of the second heat exchange fin 18.

[0040] On the basis of the above, if Figure 6 and Figure 7 As shown, the dehumidifier also includes an air inlet filter assembly 60 located at the front end of the air inlet of the condensing chamber of the main box 10. The air inlet filter assembly 60 includes a return air fan 62 and a G4 primary filter 61. The return air fan 62 is used to guide the gas to the condensing chamber and filter it through the G4 primary filter 61 to improve the cleanliness of the dehumidified air.

[0041] In addition, if Figure 6As shown, the rotor body 20 is located as a whole in the inner cavity of the main housing 10, and the heating cavity and the condensing cavity are respectively equipped with a heat exchange cover 42 and an isolation cover 41 eccentrically distributed at the ends of the rotor body 20. Specifically, the heat exchange cover 42 and the isolation cover 41 are symmetrically distributed at both ends of the rotor body 20, and the adjacent ends of the heat exchange cover 42 and the isolation cover 41 close to the rotor body 20 are both connected to the rotor body 20, and the separated ends of the isolation cover 41 are respectively connected to the inner cavity of the air inlet filter assembly 60 and the outside of the main housing 10 through a pipeline, and the outer wall of the main housing 10 is equipped with an electric auxiliary heat blower 30 whose input end and output end are both connected to the heat exchange cover 42, and a regeneration channel is formed by the inner cavity of the heat exchange cover 42 and the isolation cover 41. When the electric auxiliary hot air blower 30 is working, negative pressure is generated at the air inlet end of the electric auxiliary hot air blower 30, and positive pressure is generated in the condensation chamber by the return air blower 62, so that the section where the isolation cover 41 is connected to the air inlet filter assembly 60 can be inlet, and a part of the gas filtered by the air inlet filter assembly 60 is used as the return air gas, thereby ensuring the cleanliness of the return air gas; in addition, the gas is a normal temperature gas that has not entered the condensation chamber for condensation and cooling, which can reduce the energy consumption required for heating the return air gas. After that, the return air gas enters the electric auxiliary hot air blower 30, is heated by the electric auxiliary hot air blower 30, and is heated and dried again through the return air channel to the rotor body 20, and is discharged from the low-pressure end where the isolation cover 41 is connected to the outside of the main box body 10, thereby realizing the regeneration and drying operation of the rotor body 20. In the present embodiment, the regeneration gas is the normal temperature gas filtered by the air inlet filter assembly 60 as the return air gas, thereby reducing the energy consumption required for heating the return air gas; in addition, the isolation cover 41 is used to reduce the influence of the temperature in the condensation chamber on the regeneration channel, and the heat exchange between the regeneration channel and the gas in the heating chamber is realized through the heat exchange cover 42, so that the heating chamber can auxiliary heat the regeneration gas in the regeneration channel, further improving the energy utilization rate and reducing the energy consumption of the electric auxiliary heat blower 30.

[0042] Specifically, Figure 6 As shown, the outer wall of the heat exchange cover 42 is in contact with the second heat exchange fins 18 , which further improves the heat exchange effect between the second heat exchange fins 18 and the heat exchange cover 42 , thereby improving the heating effect of the regeneration gas in the heat exchange cover 42 .

[0043] In addition, if Figure 7 As shown, the dehumidification exhaust port 50 of the dehumidifier is arranged on the top of the main box 10 at the heating chamber, as shown in FIG. Figure 8 As shown, the dehumidification exhaust port 50 is connected to the air supply fan 70, so that the dehumidified and heated gas in the heating chamber can be better discharged into the room.

[0044] Of course, for those skilled in the art, the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0046] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A surface-cooled rotary dehumidifier, characterized in that: The invention comprises a main box body (10), wherein the inner cavity of the main box body (10) is divided by a rotor body (20) into a condensing cavity and a heating cavity, wherein a first heat exchange fin (17) and a second heat exchange fin (18) are respectively installed in the condensing cavity and the heating cavity, wherein a semiconductor refrigeration plate (14) is installed on the side wall where the condensing cavity is located in the main box body (10), wherein the cooling end of the semiconductor refrigeration plate (14) faces inward and is connected to the first heat exchange fin (17), and a heat pipe heat exchanger (15) having one end connected to the heating end of the semiconductor refrigeration plate (14) is installed on the box wall of the main box body (10), wherein the other end of the heat pipe heat exchanger (15) passes over the rotor body (20) and is connected to the second heat exchange fin (18).

2. A surface-cooled rotary dehumidifier according to claim 1, characterized in that: The outer wall of the main box body (10) comprises an aluminum shell layer (11), an epoxy resin filling layer (12) and a thermal insulation layer (13) which are sequentially arranged from the inside to the outside; the semiconductor refrigeration plate (14) is mounted on the aluminum shell layer (11), and the heating end of the semiconductor refrigeration plate (14) and the heat pipe heat exchanger (15) are both located in the epoxy resin filling layer (12).

3. A surface-cooled rotary dehumidifier according to claim 1, characterized in that: Thermally conductive silicone grease (16) is provided between the heating end of the semiconductor refrigeration sheet (14) and the heat pipe heat exchanger (15).

4. A surface-cooled rotary dehumidifier according to any one of claims 1 to 3, characterized in that: The condensing chamber and the heating chamber are sequentially distributed in the horizontal direction. Semiconductor refrigeration sheets (14) and heat pipe heat exchangers (15) are arranged on the front and rear side walls of the main box (10). The semiconductor refrigeration sheets (14) are distributed in a dot matrix on the side walls of the main box (10). The heat pipe heat exchangers (15) are arranged in a horizontal distribution and correspond to a number of groups of rows of semiconductor refrigeration sheets (14). Each group of heat pipe heat exchangers (15) is connected to the heating ends of all semiconductor refrigeration sheets (14) in the corresponding row.

5. A surface-cooled rotary dehumidifier according to claim 4, characterized in that: The first heat exchange fins (17) and the second heat exchange fins (18) are both horizontally distributed. The first heat exchange fins (17) and the second heat exchange fins (18) are arranged in a number corresponding to the number of rows of semiconductor refrigeration plates (14). The front and rear sides of the first heat exchange fins (17) are respectively connected to the cooling ends of all semiconductor refrigeration plates (14) in the corresponding rows on the front and rear walls of the main box body (10), and the front and rear sides of all the second heat exchange fins (18) are respectively connected one by one to a plurality of groups of heat pipe heat exchangers (15) on the front and rear walls of the main box body (10).

6. A surface-cooled rotary dehumidifier according to any one of claims 1 to 3, characterized in that: The dehumidifier further comprises an air inlet filter assembly (60) located at the front end of the air inlet of the condensation chamber of the main box (10), and the air inlet filter assembly (60) comprises a return air fan (62) and a G4 primary filter (61).

7. A surface-cooled rotary dehumidifier according to claim 6, characterized in that: The rotor body (20) is located as a whole in the inner cavity of the main housing (10); a heat exchange cover (42) and an isolation cover (41) eccentrically distributed at the ends of the rotor body (20) are respectively installed in the heating cavity and the condensing cavity; the heat exchange cover (42) and the isolation cover (41) are symmetrically distributed at the two ends of the rotor body (20); the adjacent ends of the heat exchange cover (42) and the isolation cover (41) close to the rotor body (20) are both connected to the rotor body (20); the separated ends of the isolation cover (41) are respectively connected to the inner cavity of the air inlet filter assembly (60) and the outside of the main housing (10) through pipelines; an electric auxiliary heat blower (30) whose input end and output end are both connected to the heat exchange cover (42) is installed on the outer wall of the main housing (10); and the regeneration channel is formed by the inner cavities of the heat exchange cover (42) and the isolation cover (41).

8. A surface-cooled rotary dehumidifier according to claim 7, characterized in that: The outer wall of the heat exchange cover (42) is in contact with the second heat exchange fin (18).

9. A surface-cooled rotary dehumidifier according to any one of claims 1 to 3, characterized in that: The dehumidification exhaust port (50) of the dehumidifier is arranged on the top of the main box (10) located at the heating chamber, and the dehumidification exhaust port (50) is connected to the air supply fan (70).

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