JP2023108087A - Dehumidifier system - Google Patents

Abstract

To provide a dehumidifier system which enables improvement of dehumidification capability.SOLUTION: A dehumidifier system includes: a refrigeration cycle 9; a dehumidification rotor 16; a heating part 17; and a heat exchanger 11 which conducts heat exchange of air between one passage 21 in which air suctioned from an indoor space and cooled in a heat sink 15 passes and the other passage 23 in which air which is suctioned from the indoor space and not conditioned passes. The dehumidifier system includes: a first draft trunk 31 which allows a suction port 2 and a moisture absorption part 19 to communicate in a written order; a second draft trunk 32 which allows the suction port 2, the heating part 17, a moisture discharge part 20, the heat sink 15, the one passage 21, and a radiator 13 to communicate in a written order; and a third draft trunk 33 which allows the suction port 2, the other passage 23, and the radiator 13 to communicate in a written order.SELECTED DRAWING: Figure 3

Description

The present invention relates to a dehumidifier.

Dehumidifiers have been put to practical use to reduce the humidity in indoor spaces and increase comfort. The configuration includes a refrigeration cycle in which a compressor, a radiator, an expander, and a heat absorber are connected annularly in a main body case having a suction port and a discharge port to circulate the refrigerant, and a dehumidifier having a moisture absorption part and a moisture release part. It has a rotor and a heating section that heats the moisture releasing section. Then, a first air passage for supplying air from the suction port to the moisture absorbing portion and discharging from the blowing port, sucking air from the suction port and supplying it to the heating portion, the moisture releasing portion, the heat absorber, and the radiator in this order, and supplying the air to the blowing port (For example, Patent Document 1 below).

JP 2016-087585 A

In such a conventional dehumidifier, the dehumidification rotor dehumidifies the air passing through the body case by absorbing moisture. Due to the difference, dew condensation is generated and dehumidification is performed. In particular, the dehumidification performance of the refrigeration cycle depends on the air temperature difference, so the higher the temperature of the indoor space where the dehumidifier is used, the better the performance. Therefore, during the summer when the indoor air temperature is high, the heating unit is not operated, the action of the dehumidification rotor is stopped, and the dehumidifier is operated simply as a refrigeration cycle type dehumidifier. At this time, since the heating unit is not operated, power consumption is suppressed, and the operation is more energy-saving than when the heating unit is operated. In the operation without operating the heating unit, further improvement in dehumidification capability is required while maintaining energy saving performance. .

The present invention is intended to solve the above-mentioned conventional problems, in which the dehumidifying ability is further improved while maintaining energy saving in the operation in which the heating part is not operated, and the dehumidifying ability is further improved in the operation in which the heating part is operated. It is an object of the present invention to provide an improved dehumidifier.

In order to achieve this object, the dehumidifier according to the present invention comprises a main body case having an inlet for sucking air in an indoor space and an outlet for blowing air into the indoor space, and a blower section for guiding air to the blowout port; a refrigeration cycle in which a radiator and a heat absorber are annularly connected to circulate a refrigerant; a dehumidification rotor having a moisture absorption section and a moisture release section; and a heating section for heating the moisture release section. Then, air heat exchange is performed between one passage through which the air sucked from the indoor space and cooled by the heat absorber passes and the other passage through which the unconditioned air sucked from the indoor space passes. a heat exchanger, comprising: a first air passage connecting the suction port and the moisture absorbing portion in this order; the suction port, the heating portion, the moisture releasing portion, the heat absorber, the one flow path, and the heat radiation and a third air passage connecting the suction port, the other flow passage, and the heat radiator in this order. It achieves the purpose of the term.

According to the present invention, since dehumidification can be performed by the heat exchanger, the dehumidifying ability is further improved while maintaining energy saving in the operation in which the heating unit is not operated, and the dehumidifying ability is further improved in the operation in which the heating unit is operated. You can get the effect of improving.

1 is a perspective view of a dehumidifier according to an embodiment of the present invention; FIG. AA sectional view of the dehumidifier according to the embodiment of the present invention 1 is an exploded perspective view of a heat exchanger of a dehumidifier according to an embodiment of the present invention; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following embodiment is an example that embodies the present invention, and does not limit the technical scope of the present invention. Further, the same reference numerals are attached to the same parts throughout the drawings, and the description thereof is omitted. Furthermore, in each drawing, detailed descriptions of parts that are not directly related to the present invention are omitted.

(Embodiment 1)
1 is a perspective view of a dehumidifier according to an embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view of the dehumidifier according to the embodiment of the invention.

As shown in FIGS. 1 and 2, the dehumidifier includes a box-shaped body case 1 .

The body case 1 includes an inlet 2 , an outlet 3 , an air blower 4 , a dehumidifier 5 , a water collector 6 , an air duct 7 , and a controller 8 .

The suction port 2 is an opening for sucking the air in the indoor space into the body case 1 , and is provided on the side surface of the body case 1 .

The air outlet 3 is an opening for blowing out air from inside the main body case 1 to the indoor space, and is provided in the upper portion (top surface) of the main body case 1 .

The air blower 4 guides air from the inlet 2 to the outlet 3, and is, for example, a fan such as a sirocco fan.

The dehumidifier 5 dehumidifies the air passing through the body case 1 and includes a refrigerating cycle 9 , a desiccant mechanism 10 and a heat exchanger 11 .

The refrigerating cycle 9 is formed by annularly connecting a compressor 12, a radiator 13, an expander 14, and a heat absorber 15 in this order, and refrigerant circulates. The air passing through the heat absorber 15 is cooled by the heat absorber 15 .

The desiccant mechanism 10 includes a dehumidifying rotor 16 , a heating section 17 and a drive means 18 .

The dehumidification rotor 16 has a disk shape, and the central axis of the disk shape is horizontally and rotatably erected in the operating state of the dehumidifier, and is rotated by the driving means 18 . The dehumidifying rotor 16 includes a moisture absorption section 19 and a moisture release section 20 .

The moisture absorbing portion 19 is a part of the dehumidifying rotor 16 and absorbs moisture from the air passing through the body case 1 .

The moisture releasing part 20 is a part of the dehumidifying rotor 16 and releases moisture to the air passing through the body case 1 .

The heating part 17 generates heat using a heating wire, and is provided at a position facing the moisture releasing part 20 . The heating unit 17 operates by being energized and heats the moisture releasing unit 20 .

The driving means 18 rotates the dehumidification rotor 16, and in this embodiment, an electrically driven motor is used.

Next, details of the heat exchanger 11 will be described with reference to FIG. 3 is an exploded perspective view of the heat exchanger 11 of the dehumidifier according to the embodiment of the invention.

As shown in FIG. 3, the heat exchanger 11 includes a plate 22 made of synthetic resin for forming one flow path 21 extending in one direction, and another flow path 23 extending in the other direction different from the one direction. A plurality of plates 24 made of synthetic resin are alternately superimposed for the purpose. In the present embodiment, one direction refers to a horizontal direction with respect to the ground surface of the main body case 1, and the other direction refers to a direction that intersects with the one direction at 90 degrees, that is, a vertical direction in the main body case 1. .

The plate body 22 includes a flat plate-shaped flat portion 25 and a plurality of ribs 26 provided in parallel on the flat portion 25 at predetermined intervals.

The rib 26 has a plate shape, is in contact with the plane portion 25 perpendicularly, and linearly extends in one direction.

The plate 24 includes a flat plate-shaped flat portion 27 and a plurality of ribs 28 provided in parallel on the flat portion 27 at predetermined intervals.

The rib 28 has a plate shape, is in contact with the plane portion 27 perpendicularly, and linearly extends in the other direction.

When a plurality of plates 22 and 24 are alternately superimposed, the ribs 26 and the flat portions 27 are in contact with each other without gaps to form the one-way flow paths 21, and the ribs 28 and the flat portions 25 are in contact with each other without gaps. By doing so, the other flow path 23 is formed. The one channel 21 and the other channel 23 are independent of each other so that there is no air flow.

Next, details of the water collecting portion 6 will be described with reference to FIG.

The water collection part 6 collects and stores water condensed in the dehumidification part 5 , and includes a water receiving part 29 and a water collection tank 30 .

The water receiver 29 is funnel-shaped with an opening at the bottom, is provided below the heat absorber 15 and the heat exchanger 11 , and guides falling water into the water collection tank 30 .

The water collecting tank 30 has a substantially box shape capable of storing water, and is provided below the water receiving portion 29 . The water collecting tank 30 has an opening at a part of the top surface so that the water that has fallen into the water receiving portion 29 can be guided inside. Also, the water collection tank 30 is detachably arranged with respect to the main body case 1 .

Next, the details of the air duct 7 will be described with reference to FIG.

The air passage 7 is an air passage through which the air sucked into the main body case 1 from the suction port 2 reaches the air outlet 3 .

The control unit 8 receives a signal from the operation unit 35 and controls the operations of the blower unit 4, the refrigerating cycle 9, and the heating unit 17. The winter mode for operating the heating unit 17 and the heating unit 17 a summer mode that does not operate;

The operation unit 35 has a plurality of buttons provided on the top surface of the main body case 1, and receives various instructions for operation of the dehumidifier by being pressed by the user, and sends them to the control unit 8. Send a signal.

In this embodiment, the air duct 7 includes a first air duct 31 , a second air duct 32 , and a third air duct 33 .

The first air passage 31 is an air passage that connects the suction port 2 and the moisture absorbing portion 19 in this order and reaches the air outlet 3 .

The second air passage 32 is an air passage that connects the suction port 2 , the heating section 17 , the moisture desorption section 20 , the heat absorber 15 , the one-way flow path 21 and the radiator 13 in this order and reaches the air outlet 3 .

The third air passage 33 is an air passage that connects the suction port 2 , the other flow path 23 , and the radiator 13 in this order and reaches the air outlet 3 .

Next, a representative operation of the dehumidifier in the present invention will be described.

When the user operates the operation unit 35 and instructs to start the operation of the dehumidifier, the control unit 8 starts the operation of the blower unit 4 and the dehumidification unit 5 . Due to the operation of the air blower 4, the air in the indoor space is sucked into the main body case 1 through the air inlet 2, passes through the air passage 7, and is blown out from the air outlet 3 into the indoor space. At this time, the air passing through the air passage 7 is dehumidified by the action of the dehumidifying section 5 . In the dehumidifying section 5 , water condensed on the heat absorber 15 and the heat exchanger 11 drips downward and falls into the water receiving section 29 . The water that has fallen into the water receiving portion 29 is guided into the water collecting tank 30 and stored therein. The above operation dehumidifies the air in the indoor space.

Next, the dehumidification operation in each mode of the dehumidifier of the present invention will be described in detail.

First, the winter mode dehumidification operation in which the heating unit 17 is operated will be described.

In the first air passage 31 , air in the indoor space sucked from the suction port 2 first passes through the moisture absorption portion 19 of the dehumidification rotor 16 . The moisture in the air is absorbed by the moisture absorbing portion 19 after passing through the moisture absorbing portion 19, so that the humidity of the air becomes lower than that before passing through the moisture absorbing portion 19. - 特許庁Furthermore, since adsorption heat is generated when moisture is adsorbed, the temperature of the air passing through the first air passage 31 rises. As a result, the air that has passed through the first air passage 31 has a higher temperature and lower humidity than before the passage, and is blown out from the air outlet 3 into the indoor space by the air blower 4 . Due to the above action, air is dehumidified in the first air passage 31 . It should be noted that the moisture adsorbed by the moisture absorbing portion 19 moves to the moisture releasing portion 20 as the dehumidifying rotor 16 rotates.

In the second air passage 32 , the air in the indoor space sucked from the suction port 2 first passes through the heating section 17 . The air that has passed through the heating unit 17 is heated by the heating unit 17 and has a higher temperature than before the passage. The air that has passed through the heating section 17 then passes through the moisture releasing section 20 of the dehumidifying rotor 16 . In the moisture desorption section 20 , the moisture adsorbed by the moisture absorption section 19 is released into the air passing through the moisture desorption section 20 by being heated by the heating section 17 . Therefore, the air that has passed through the moisture release section 20 has a higher humidity than before the passage.

The air that has passed through the moisture release section 20 then passes through the heat absorber 15 . The heat absorber 15 cools the air in the second air passage 32 whose temperature and humidity have increased. When the air passing through the heat absorber 15 has a dew point temperature or less, dew condensation occurs in the air, so the air in the second air passage 32 is dehumidified. At this time, water droplets generated by dew condensation are collected by the water collector 6 .

The air cooled by the heat absorber 15 then passes through one flow path 21 of the heat exchanger 11 . The air passing through the one flow path 21 exchanges heat with the air in the third air passage 33 passing through the other flow path 23 of the heat exchanger 11, cooling the air passing through the other flow path 23, and dew point Condensation occurs when cooled below the temperature. The air that has passed through the one-way flow path 21 then passes through the radiator 13 . Since the temperature of the air passing through the radiator 13 is lower than the temperature of the radiator 13, the air passing through the radiator 13 cools the radiator 13 and the temperature rises.

In the refrigerating cycle 9, as the radiator 13 is cooled, the cooling action of the air in the heat absorber 15 increases, and the dehumidification efficiency in the heat absorber 15 increases. The air that has passed through the radiator 13 is blown out from the outlet 3 into the indoor space by the air blower 4 . Due to the above action, air is dehumidified in the second air passage 32 , and the air passing through the other flow passage 23 is cooled in order to dehumidify in the third air passage 33 .

In the third air passage 33 , air in the indoor space sucked from the suction port 2 first passes through the other passage 23 of the heat exchanger 11 . The air passing through the other flow path 23 undergoes heat exchange with the air passing through the one flow path 21 of the heat exchanger 11 . On the other hand, since the air flowing into the flow path 21 is cooled by the heat absorber 15, it has a lower temperature than the air in the indoor space.

Since the air flowing into the other flow path 23 is not air-conditioned before it is sucked from the indoor space and passes through the other flow path 23, the temperature difference with the air in the indoor space is extremely small (almost none). Therefore, the air passing through the other flow path 23 is cooled by the air passing through the one flow path 21 of the heat exchanger 11, and when cooled to the dew point temperature or lower, dew condensation occurs in the other flow path 23. At this time, water droplets generated by dew condensation are collected by the water collector 6 . Note that "unconditioned" means that the air is not affected by changes in temperature and humidity after being sucked into the apparatus.

The air that has passed through the other flow path 23 then passes through the radiator 13 . Since the temperature of the air passing through the radiator 13 is lower than the temperature of the radiator 13, the air passing through the radiator 13 cools the radiator 13 and the temperature rises. By cooling the heat radiator 13, the dehumidification efficiency in the heat absorber 15 is enhanced. The air that has passed through the radiator 13 is then blown out from the outlet 3 into the indoor space by the air blower 4 . Due to the above action, the air is dehumidified in the third air passage 33, and the dehumidification efficiency in the heat absorber 15 of the second air passage 32 is increased.

With the above configuration, the dehumidifying action of the heat exchanger 11 works, so the dehumidifying capacity is improved. In the prior art, the air cooled by passing through the heat absorber 15 of the refrigeration cycle 9 is then passed through the radiator 13 and used to cool the radiator 13. It was not used for the purpose of In the present invention, the heat of the air that has passed through the heat absorber 15 is used for the dehumidification action of the heat exchanger 11, which makes it possible to improve the above dehumidification capability without newly increasing power consumption. It is also beneficial in As a result, it is possible to obtain a dehumidifying device that has improved dehumidifying performance while maintaining energy saving in the operation in which the heating unit 17 is operated.

Next, the dehumidification operation in the summer mode in which the heating unit 17 is not operated will be described.

When the heating unit 17 is not operated, the moisture release unit 20 does not release the moisture adsorbed by the moisture absorption unit 19 into the air. If the dehumidification by the moisture absorption part 19 is continued as it is, the dehumidification rotor 16 reaches a state where it can no longer absorb moisture. In other words, dehumidification by the dehumidification rotor 16 is stopped after a while from the start of the summer mode. The operating time required until dehumidification by the dehumidifying rotor 16 is stopped depends on the humidity in the indoor space where the dehumidifier is used. It is extremely short compared to the operation time after the operation is no longer performed. Below, the summer mode is started and each air passage will be described in a state where dehumidification by the dehumidification rotor 16 is no longer performed.

In the first air passage 31 , air in the indoor space sucked from the suction port 2 first passes through the moisture absorption portion 19 of the dehumidification rotor 16 . At this time, dehumidification by the dehumidification rotor 16 is not performed. The air that has passed through the hygroscopic part 19 is blown out from the outlet 3 into the indoor space by the blower part 4 . Air is not dehumidified in the first air passage 31 .

In the second air passage 32 , the air in the indoor space sucked from the suction port 2 first passes through the heating section 17 and then passes through the moisture releasing section 20 of the dehumidifying rotor 16 . Since the heating section 17 is not operating, the temperature and humidity of the air do not change even after passing through the heating section 17 and the moisture releasing section 20 .

The air that has passed through the moisture release section 20 then passes through the heat absorber 15 . In the heat absorber 15, the air in the second air passage 32 is dehumidified in order to cool the passing air and cause dew condensation. At this time, water droplets generated by dew condensation are collected by the water collector 6 .

The air that has passed through the heat absorber 15 then passes through one flow path 21 of the heat exchanger 11 . The air passing through the one flow path 21 exchanges heat with the air in the third air passage 33 passing through the other flow path 23 of the heat exchanger 11, cooling the air passing through the other flow path 23, and dew point Condensation occurs when cooled below the temperature.

The air that has passed through the one-way flow path 21 then passes through the radiator 13 . Since the temperature of the air passing through the radiator 13 is lower than the temperature of the radiator 13, the air passing through the radiator 13 cools the radiator 13 and the temperature rises. By cooling the heat radiator 13, the dehumidification efficiency in the heat absorber 15 is enhanced.

The air that has passed through the radiator 13 is blown out from the outlet 3 into the indoor space by the air blower 4 . Due to the above action, air is dehumidified in the second air passage 32 , and the air passing through the other flow passage 23 is cooled in order to dehumidify in the third air passage 33 .

In the third air passage 33 , air in the indoor space sucked from the suction port 2 first passes through the other passage 23 of the heat exchanger 11 . The air passing through the other flow path 23 undergoes heat exchange with the air passing through the one flow path 21 of the heat exchanger 11 .

On the other hand, since the air flowing into the flow path 21 is cooled by the heat absorber 15, it has a lower temperature than the air in the indoor space. Since the air flowing into the other flow path 23 is not air-conditioned before it is sucked from the indoor space and passes through the other flow path 23, the temperature difference with the air in the indoor space is extremely small (almost none). Therefore, the air passing through the other flow path 23 is cooled by the air passing through the one flow path 21 of the heat exchanger 11, and when cooled to the dew point temperature or lower, dew condensation occurs in the other flow path 23. At this time, water droplets generated by dew condensation are collected by the water collector 6 .

The air that has passed through the other flow path 23 then passes through the radiator 13 . Since the temperature of the air passing through the radiator 13 is lower than the temperature of the radiator 13, the air passing through the radiator 13 cools the radiator 13 and the temperature rises. By cooling the heat radiator 13, the dehumidification efficiency in the heat absorber 15 is enhanced. The air that has passed through the radiator 13 is blown out from the outlet 3 into the indoor space by the air blower 4 . Due to the above action, the air is dehumidified in the third air passage 33, and the dehumidification efficiency in the heat absorber 15 of the second air passage 32 is enhanced.

With the above configuration, the dehumidifying action of the heat exchanger 11 works, so the dehumidifying capacity is improved. In the prior art, the air cooled by passing through the heat absorber 15 of the refrigeration cycle 9 is then passed through the radiator 13 and used to cool the radiator 13. It was not used for the purpose of

In the present invention, the heat of the air that has passed through the heat absorber 15 is used for the dehumidification action of the heat exchanger 11, which makes it possible to improve the above dehumidification capability without newly increasing power consumption. It is also beneficial in As a result, it is possible to obtain a dehumidifying apparatus that maintains energy saving and further improves the dehumidifying ability in an operation in which the heating unit 17 is not operated.

In addition, the first air passage 31 may be further configured to communicate with the radiator 13 downstream of the moisture absorbing section 19 . With the above configuration, the radiator 13 can be cooled with more air, so the dehumidification efficiency in the heat absorber 15 is enhanced. Thereby, the dehumidifying ability in the second air passage 32 is improved. That is, it is possible to obtain a dehumidifying device with improved dehumidifying performance while maintaining energy saving.

In addition, it is also possible to adopt a configuration including a fourth air passage that directly communicates the suction port 2 and the radiator 13 in this order.

In the fourth air passage, air in the indoor space sucked from the suction port 2 first passes through the radiator 13 . Since the temperature of the air passing through the radiator 13 is lower than the temperature of the radiator 13, the air passing through the radiator 13 cools the radiator 13 and the temperature rises. By cooling the heat radiator 13, the dehumidification efficiency in the heat absorber 15 is enhanced.

With the above configuration, the radiator 13 can be cooled with more air, so the dehumidification efficiency in the heat absorber 15 is increased. Thereby, the dehumidifying ability in the second air passage 32 is improved. That is, it is possible to obtain a dehumidifying device with improved dehumidifying performance while maintaining energy saving.

In addition, a temperature detection unit 34 for detecting the temperature of the air in the indoor space may be provided, and the control unit 8 may be configured to execute summer mode or winter mode according to the temperature detected by the temperature detection unit 34 .

The temperature detection unit 34 can detect the temperature of the air, and is provided between the suction port 2 and the heat exchanger 11 in the second air passage 32 . The temperature detection unit 34 transmits information on the detected temperature to the control unit 8 as a signal.

The controller 8 executes the summer mode or winter mode based on the information transmitted from the temperature detector 34 . The summer mode is executed when the temperature detection unit 34 detects a temperature equal to or higher than a predetermined temperature, and the winter mode is executed when the temperature detection unit 34 detects a temperature lower than the predetermined temperature. The predetermined temperature is 28° C., for example. As a result, the control unit 8 switches the operation mode so that the power consumption and the dehumidification performance are well balanced, so that a highly convenient dehumidifier can be provided. In addition, the temperature detection unit 34 only needs to be able to detect the humidity of the air in the indoor space, and does not need to be provided between the suction port 2 and the heat exchanger 11 in the second air duct 32. It is not limited.

INDUSTRIAL APPLICABILITY The dehumidifying device according to the present invention provides a higher dehumidifying effect, and is extremely useful for dehumidifying indoor spaces and drying clothes.

1 Body Case 2 Suction Port 3 Blower Port 4 Blower Part 5 Dehumidifying Part 6 Water Collecting Part 7 Air Blowing Path 8 Control Part 9 Refrigeration Cycle 10 Desiccant Mechanism 11 Heat Exchanger 12 Compressor 13 Radiator 14 Expander 15 Heat Absorber 16 Dehumidifying Rotor 17 heating part 18 driving means 19 moisture absorbing part 20 moisture releasing part 21 one channel 22 plate 23 other channel 24 plate 25 plane part 26 rib 27 plane part 28 rib 29 water receiving part 30 water collection tank 31 first air passage 32 second air passage 33 third air passage 34 temperature detection unit 35 operation unit

Claims (4)

a body case having an inlet for sucking air in an indoor space and an outlet for blowing air into the indoor space;
an air blower that guides air from the inlet to the outlet;
a refrigeration cycle in which a radiator and a heat absorber are connected in a ring shape and a refrigerant is circulated;
a dehumidifying rotor having a moisture absorbing portion and a moisture releasing portion;
a heating unit that heats the moisture releasing unit;
Heat exchange for exchanging air between one passage through which the air sucked from the indoor space and cooled by the heat absorber passes and the other passage through which the unconditioned air sucked from the indoor space passes. equipped with a vessel and
a first air passage that communicates the suction port and the moisture absorbing portion in this order;
a second air passage that communicates the suction port, the heating section, the moisture releasing section, the heat absorber, the one flow path, and the heat radiator in this order;
A dehumidifying device comprising a third air passage that communicates the suction port, the other flow path, and the radiator in this order. The dehumidifier according to claim 1, wherein said first air passage further communicates with said radiator downstream of said moisture absorbing section. 3. The dehumidifying device according to claim 1, further comprising a fourth air passage connecting said suction port and said radiator in this order. a temperature detection unit that detects the temperature of the air in the indoor space;
A control unit that performs control according to the temperature detected by the temperature detection unit,
The control unit
a summer mode in which the heating unit does not perform a heating operation when the temperature detection unit detects a temperature equal to or higher than a predetermined temperature; and a heating operation by the heating unit when the temperature detection unit detects a temperature lower than the predetermined temperature. The dehumidifier according to any one of claims 1 to 3, comprising a winter mode for performing