Dehumidicating device

Abstract

The present invention relates to a dehumidification device such as a desiccant dehumidifier, and more specifically, to a dehumidification device capable of minimizing energy consumption during the process of desorbing moisture from a dehumidification rotor and regenerating it. The dehumidification device according to the present invention comprises: a dehumidification rotor that adsorbs moisture from the air; a cassette spaced apart on each side of the rotor, with partition walls formed radially from the center of the dehumidification rotor; and a heating means having a housing with an open top provided on one side of the cassette, wherein the housing has a first heater that heats air passing through the dehumidification rotor and a second heater that heats air passing through the first heater and re-supplies it to the dehumidification rotor, the heating means being installed side by side, wherein the first heater and the second heater are installed at an angle such that they are spaced apart from the cassette as they move outward from adjacent surfaces.

Description

Technology Field

[0001] The present invention relates to a dehumidification device such as a desiccant dehumidifier, and more specifically, to a dehumidification device capable of minimizing energy consumption during the process of desorbing moisture from a dehumidification rotor and regenerating it. Background Technology

[0003] In general, dehumidification, which removes moisture from the air, requires relatively more energy compared to cooling or heating and tends to result in complex systems, so humidity control is rarely implemented in ordinary buildings.

[0004] However, the importance of dehumidification is increasing day by day for a comfortable indoor environment, prevention of condensation, product storage, maintenance of product quality, and improvement of productivity.

[0005] In particular, as maintaining high indoor temperatures to conserve cooling energy leads to increased indoor humidity and a significant decline in comfort, the importance of energy-saving dehumidifiers is growing.

[0006] Dehumidifiers are broadly classified into adsorption and cooling types. The adsorption type absorbs moisture using an adsorbent, and examples include desiccant dehumidifiers. The cooling type, also known as the cooling dew point type, is a method in which dehumidification is achieved by cooling humid air to below its dew point temperature.

[0007] Among various types of dehumidifiers, a desiccant dehumidifier is a device that produces dry air by equipping a rotary dehumidification rotor with an adsorbent, adsorbing moisture contained in the air onto the adsorbent, and then removing the adsorbed moisture using dry air.

[0008] On-site, cooling dehumidification methods using coil cooling and dry dehumidification methods using dehumidification rotors are used individually or in combination.

[0009] Desiccant dehumidifiers can be configured in a single mode with one dehumidification rotor or in a dual mode with two dehumidification rotors.

[0010] These desiccant dehumidifiers have a process of desorbing adsorbed moisture using a heater to continuously use the rotary dehumidification rotor.

[0011] FIG. 1 shows a conventional desiccant dehumidifier (100). As illustrated, it includes a rotary dehumidifying rotor (110) and a pair of cassettes (120A, 120B) provided on both sides of the dehumidifying rotor (110), and the cassettes (120A, 120B) are provided with a plurality of partition walls (121).

[0012] Meanwhile, the desiccant dehumidifier (100) undergoes a regeneration process in which moisture is removed by a heater for continuous use of the rotary dehumidifying rotor (110), and the air containing a large amount of moisture removed from the dehumidifying rotor (110) is discharged to the outside.

[0013] As shown in FIG. 2, the cassette (120A, 120B) has a protruding duct (140) for discharging air, which causes the desiccant dehumidifier to have a thick thickness (d1).

[0014] In addition, there is a problem with high energy consumption during the process of desorbing moisture from the dehumidification rotor. Prior art literature

[0016] Registered Patent No. 10-2658652 Registered Patent No. 10-1196775 Registered Patent No. 10-2597628 The problem to be solved

[0017] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a thin dehumidifying device by discharging air through the corners of a cassette.

[0018] Another objective of the present invention is to provide a dehumidification device capable of minimizing energy consumption during the process of regenerating by desorbing moisture from a rotor. means of solving the problem

[0020] To solve the above technical problem, the dehumidification device according to the present invention comprises: a rotary dehumidification rotor that adsorbs moisture from the air; a cassette spaced apart on each side of the dehumidification rotor, which is divided into a processing zone, a regeneration zone, and a cooling zone by radially forming partition walls from the center of the dehumidification rotor, and has an exhaust port formed at the corner; a heating means provided on one side of the cassette to desorb moisture from the dehumidification rotor; a duct cover that guides air discharged from the regeneration zone to be discharged through the exhaust port; and a regeneration fan that discharges air to the outside through the exhaust port.

[0021] In addition, it is preferable that the duct cover includes a first sealing part covering one side of the regeneration zone and a second sealing part extending from the first sealing part and covering the exhaust port.

[0022] In addition, it is preferable that the duct cover be formed in a stepped shape such that the second sealing portion is formed higher than the first sealing portion.

[0023] In addition, the heating means is preferably provided with a housing with an open top on one side of the cassette, and the housing has a first heater that heats the air passing through the dehumidification rotor and a second heater that heats the air passing through the first heater and re-supplies it to the dehumidification rotor, and the first heater and the second heater are preferably installed at an angle such that they are spaced apart from the cassette as they extend outward from adjacent surfaces.

[0024] In addition, it is preferable that the heating means be equipped with a partition so that the air passing through the dehumidification rotor is supplied only to the first heater and not to the second heater.

[0025] In addition, it is preferable that the first and second heaters are PCT heaters (Positive temperature coefficient heaters).

[0026] In addition, it is preferable that the above partition wall be divided into a treatment zone for adsorbing moisture from the air, a regeneration zone for desorbing moisture adsorbed by the heating means, and a cooling zone for cooling the dehumidification rotor heated by the heating means. Effects of the invention

[0028] According to the present invention, by discharging air through the corners of a cassette that were not previously utilized, it is possible to provide a thin desiccant dehumidifier.

[0029] In addition, as air passing through the cooling zone of the dehumidification rotor passes through the heater and is recirculated to the regeneration zone of the dehumidification rotor, it has the effect of reducing differential pressure and increasing airflow.

[0030] Therefore, the energy used in the process of desorbing moisture from the dehumidification rotor can be minimized. Brief explanation of the drawing

[0032] Figures 1 and 2 show a conventional desiccant dehumidifier. FIGS. 3 to 7 are drawings for explaining the configuration of a dehumidification device according to the present invention. FIGS. 8 and 9 are drawings for explaining the operation of a dehumidification device according to the present invention. Specific details for implementing the invention

[0033] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0034] Referring to FIGS. 3 to 7, an embodiment according to the present invention is a desiccant dehumidifier comprising a dehumidifying rotor (10) that rotates by a driving means (not shown) and cassettes (20A, 20B) each disposed on both sides of the dehumidifying rotor (10) and having protruding partition walls (21) formed to partition the intake / exit space through which air is drawn in and out of the dehumidifying rotor (10).

[0035] The dehumidifying rotor (10) is formed in a cylindrical shape, and the interior can be formed by forming an inorganic fiber paper, such as ceramic paper, into a honeycomb shape, and then attaching a moisture adsorbent such as silica gel or zeolite to the inorganic fiber paper.

[0036] The dehumidifying rotor (10) is not limited to the previously described known technology.

[0037] The cassette (20A, 20B) has partition walls (21) formed radially from the center of the dehumidification rotor (10), and is divided into a processing zone, a regeneration zone, and a cooling zone by the partition walls (21).

[0038] To explain in detail with reference to FIG. 6, the processing zone is an area where air to be dehumidified is introduced and dehumidified in the dehumidification rotor (10), the regeneration zone is an area where heated air is introduced to remove moisture dehumidified in the dehumidification rotor (10), and the cooling zone is an area that cools the regeneration zone.

[0039] The cassette (20A, 20B) of this embodiment may be divided into 7 spaces, but the number of these spaces is not limited.

[0040] In addition, the cassette (20A, 20B) is formed of a heat-resistant plastic material, making it easy to manufacture and lighter than if formed of steel.

[0041] In addition, due to low thermal conductivity, heat loss caused by the conduction of air passing through each chamber can be minimized.

[0042] Cassettes (20A, 20B) are installed on each side of the dehumidifying rotor (10), and a heat-resistant silicone sealing member (not shown) is installed between the dehumidifying rotor (10) and the cassettes (20A, 20B). Here, it is preferable that the sealing member be formed to have heat resistance of at least 200 to 250°C so that it can be used even when the air entering and exiting the dehumidifying rotor cassettes (20A, 20B) is at a high temperature.

[0043] An exhaust port is formed at the corner of the above cassette.

[0044] And, on one side of the cassette (20A, 20B), a drive shaft is installed so as to rotate by a driving means and pass through the cassette (20A, 20B) to face the dehumidification rotor (10), and a belt is installed to connect the drive shaft and the dehumidification rotor (10).

[0045] Accordingly, when the driving means is driven, the dehumidifying rotor (10) is configured to rotate by a belt that rotates in conjunction with the rotating driving shaft.

[0046] In addition, the present embodiment is provided with a heating means (30), the heating means (30) including a first heater (35) and a second heater (36) built into a housing (31), which will be described later.

[0047] In particular, an embodiment according to the present invention includes a duct cover (50) that guides air discharged from the regeneration zone to be discharged to the exhaust port (60), and a regeneration fan (40) that discharges air to the outside through the exhaust port (60).

[0048] The above duct cover (50) includes a first sealing part (51) that covers one side of the cassette (20A), particularly one side of the regeneration zone, and a second sealing part (52) that extends from the first sealing part (51).

[0049] In addition, the second sealing part (52) is formed higher than the first sealing part (51), so that the duct cover (50) is formed with a step difference overall.

[0050] Of course, it is natural that a sealing member is provided to seal the space between the duct cover (50) and the cassette (20A).

[0051] The heating means (30) includes a first heater (35) and a second heater (36) built into a housing (31). The housing (31) is provided on one side of one of the cassettes (20A, 20B), and in this embodiment, the housing (31) has a roughly rectangular shape with an open surface facing the cassettes (20A, 20B) (top surface in FIG. 2).

[0052] In this embodiment, the first heater (35) and the second heater (36) are composed of plate-shaped PCT heaters (Positive temperature coefficient heaters).

[0053] As can be seen from FIG. 8, air supplied through the dehumidification rotor (10) is heated while passing through the first heater (35), and the air that has passed through the first heater (35) passes through the second heater (36) and is supplied back to the dehumidification rotor (10). The heated air desorbs moisture adsorbed on the dehumidification rotor (10) and passes through the regeneration zone containing a large amount of moisture, is guided to the exhaust port (60) by the duct cover (50), passes through the exhaust hole (61), and is discharged to the outside through the regeneration fan (40).

[0054] At this time, in order to prevent the air supplied through the dehumidification rotor (10) from being supplied directly to the second heater (36) without passing through the first heater (35), a partition (33) is provided at the upper center of the housing (31).

[0055] Since air flow must be smooth through the bottom surface (37) of the housing (31), the bulkhead is formed only at the upper center of the housing (31), and the bulkhead (33) is not formed on the bottom surface (37).

[0056] As illustrated in FIG. 9, the first heater (35) and the second heater (36) are arranged side by side adjacent to each other. While it is possible to arrange them horizontally (Fig. 9 (a)), it is more preferable to install them at an angle so that they are spaced further outward from the cassette on adjacent surfaces (Fig. 9 (b)).

[0057] That is, it can be seen that the facing surfaces of the first heater (35) and the second heater (36) are spaced apart from the bottom surface (37) of the housing, and the opposite surfaces of the first heater and the second heater are installed at an angle so as to be close to the bottom surface of the housing.

[0058] As shown in FIG. 9 (a), when the first heater (35) and the second heater (36) are installed horizontally, when air passing through the first heater (35) flows along the bottom surface (37) of the housing to the second heater (36), the differential pressure increases, causing the airflow velocity in the space between the first heater (35) and the second heater (36) to decrease. Consequently, the regeneration efficiency of the dehumidification rotor (10) decreases. In order to prevent such a decrease in regeneration efficiency, the capacity of the regeneration fan must be increased, which leads to a problem of significantly increased energy consumption.

[0059] In contrast, as shown in FIG. 9 (b), when the first heater (35) and the second heater (36) are not installed horizontally, but rather the facing surfaces of the first heater (35) and the second heater (36) are installed at the top and are inclined so that they descend toward the outside, the space (area) between the facing surfaces of the first heater (35) and the second heater (36) and the bottom surface (37) of the housing increases.

[0060] Therefore, when air passing through the first heater (35) flows along the bottom surface (37) of the housing to the second heater (36), the differential pressure is reduced, and the airflow between the first heater (35) and the second heater (36) becomes smooth.

[0061] Therefore, the regeneration efficiency of the dehumidifying rotor (10) is increased, and on the other hand, since there is no need to significantly increase the capacity of the regeneration fan (40) to prevent a decrease in regeneration efficiency, the energy required for the regeneration of the dehumidifying rotor (10) can be minimized.

[0062] Referring again to FIG. 8, the air supplied to the first heater (35) through the dehumidifying rotor (10) passes through the second heater (36) and is supplied back to the dehumidifying rotor (10) to dehydrate the moisture from the dehumidifying rotor (10) and regenerate.

[0063] In this way, the air containing a large amount of moisture removed from the dehumidifying rotor (10) is discharged to the outside through the duct provided at the corner of the cassette (20A, 20B).

[0064] The above detailed description is illustrative of the present invention. Furthermore, the foregoing describes preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, modifications or alterations are possible within the scope of the concept of the invention disclosed herein, the scope equivalent to the disclosed content, and / or the scope of the art or knowledge. The described embodiments describe the best state for implementing the technical concept of the present invention, and various modifications required for specific fields of application and uses of the present invention are possible. Accordingly, the above detailed description of the invention is not intended to limit the present invention to the disclosed embodiments. Additionally, the appended claims should be interpreted as including other embodiments. Explanation of the symbols

[0066] 1: Dehumidifier 10: Dehumidification rotor 20A, 20B: Cassette 21: Partition wall 30: Heating means 31: Housing 32: Slot 33: Bulkhead 35: 1st heater 36: Second heater 40: Playback fan 50: Duct cover 51: First seal 52: Second seal

Claims

Claim 1 A dehumidification device comprising: a rotary dehumidifying rotor that adsorbs moisture from the air; a pair of cassettes spaced apart on each side of the dehumidifying rotor, each having a partition wall formed radially from the center of the dehumidifying rotor to divide the cassette into a processing zone, a regeneration zone, and a cooling zone; an exhaust port formed at one corner of one of the cassettes; a heating means provided on one side of the cassette to desorb moisture; and a duct cover that covers one side of the cassette to guide air passing through the regeneration zone to the exhaust port; wherein the duct cover comprises a first sealing part covering the upper part of the regeneration zone and a second sealing part covering the upper part of the exhaust port. Claim 2 A dehumidifying device according to claim 1, further comprising a regeneration fan that discharges air to the outside through the exhaust port. Claim 3 A dehumidification device according to paragraph 2, characterized in that the duct cover is formed in a stepped shape such that the second sealing portion is formed higher than the first sealing portion. Claim 4 A dehumidification device according to claim 1, wherein the heating means is provided with a housing with an open top on one side of the cassette, and the housing has a first heater that heats air passing through the dehumidification rotor and a second heater that heats air passing through the first heater and re-supplies it to the dehumidification rotor, the heating means being built side by side. Claim 5 A dehumidification device according to claim 4, wherein a partition is provided at the upper center of the housing so that air passing through the dehumidification rotor flows into the first heater, and the partition is not formed on the bottom surface of the housing so that air passing through the first heater flows into the second heater along the bottom surface of the housing. Claim 6 A dehumidification device characterized in that, in claim 5, the first heater and the second heater are PCT heaters (Positive temperature coefficient heaters). Claim 7 A dehumidification device according to claim 4, characterized in that the first heater and the second heater are installed at an angle such that they are spaced apart from the cassette as they move outward from adjacent surfaces. Claim 8 A dehumidifying device according to claim 1, characterized in that the air passing through the regeneration zone is discharged into the space between a pair of cassettes through the exhaust port.

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