Heat exchanger for dehumidification treatment device and dehumidification treatment device

Abstract

The present invention relates to the technical field of humidification and dehumidification equipment, and in particular to a heat exchanger for a humidification and dehumidification treatment device, comprising a top cover, a water receiving tray, and a plurality of heat exchange tubes, wherein the top cover and the water receiving tray are provided with an air guide cavity, and the water receiving tray is provided with a drain port; the plurality of heat exchange tubes are installed between the top cover and the water receiving tray, the heat exchange tubes are connected to the outside through the air guide cavity, and the gaps between the heat exchange tubes form a cold air duct, wherein the air in the cold air duct is suitable for heat exchange with the air in the heat exchange tube during dehumidification operation; the top cover is provided with a water cavity and a flow guide component, and the flow guide component is suitable for guiding the water in the water cavity to the outer surface of the heat exchange tube during humidification operation, so as to form a wet curtain located in the cold air duct on the outer surface of the heat exchange tube. The heat exchanger of the present invention can share a set of devices for humidification and dehumidification operation, has a compact structural design, occupies a small area, can meet the working requirements of humidification and dehumidification at the same time, and the humidification and dehumidification treatment device formed by assembling this heat exchanger has more comprehensive functions and can greatly increase the frequency of use of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of dehumidification equipment, and in particular to a heat exchanger and a dehumidification processing device. Background Art

[0002] Humidification and dehumidification are common methods of air treatment in air handling devices. Dehumidification typically involves the use of desiccant adsorption. Desiccant adsorption is placed within the dehumidifier, and the air passing through it is dehumidified through physical adsorption. For example, a rotary dehumidifier utilizes a slowly rotating honeycomb desiccant wheel coated with a desiccant to absorb water vapor from the ambient air. The wheel is then heated to a high temperature to dehydrate and regenerate the desiccant, achieving continuous dehumidification. For humidification, water is typically atomized, and the atomized water vapor increases the water vapor content in the air, achieving humidification.

[0003] Most dehumidifiers on the market only dehumidify, not adjust humidity. They're typically used only when the humidity is high or to dry clothes, resulting in infrequent usage. If humidification is required, the typical approach is to add a separate humidifier, but this can easily oversize the entire unit, hindering usability. Summary of the Invention

[0004] The present invention aims to address at least one of the technical problems existing in the related art. To this end, the present invention proposes a heat exchanger for a dehumidification treatment device. Through its structural design, the heat exchanger can simultaneously meet the operating requirements of air handling equipment in both humidification and dehumidification modes. Humidification and dehumidification can be performed using a single device. This compact design and small footprint create a more comprehensive dehumidification treatment device, significantly increasing the frequency of equipment use.

[0005] The present invention also proposes a dehumidification treatment device, which includes the above-mentioned heat exchanger and adds a humidification function to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, it can also adjust the humidity, so that the equipment has both dehumidification and humidification functions. The whole machine has a compact structure and occupies a small area. Within a limited space, it can achieve more comprehensive functions and greatly increase the frequency of equipment use.

[0006] According to a first embodiment of the present invention, a heat exchanger for a dehumidification treatment device comprises a top cover, a water receiving tray, and a plurality of heat exchange tubes.

[0007] The top cover and the water receiving tray are both provided with an air guide cavity, and the water receiving tray is provided with a drain outlet;

[0008] The plurality of heat exchange tubes are installed between the top cover and the water receiving tray, and the heat exchanger includes:

[0009] A top cover and a water receiving tray, wherein both the top cover and the water receiving tray are provided with an air guide cavity, and the water receiving tray is provided with a drain outlet;

[0010] A heat exchange tube is installed between the top cover and the water receiving tray, the heat exchange tube is connected to the outside through the air guide cavity, and a cold air duct is formed in the space outside the tube wall of the heat exchange tube. The air in the cold air duct is suitable for heat exchange with the air in the heat exchange tube in the dehumidification mode of the air handling equipment;

[0011] The top cover is provided with a water cavity, and the water in the water cavity is suitable for humidifying the air in the cold air duct in the humidification mode of the air treatment equipment.

[0012] According to the embodiment of the present invention, the dehumidification treatment device can simultaneously meet the working requirements of the air treatment equipment in the humidification mode and the dehumidification mode through structural design. The humidification and dehumidification operations can share a set of devices. The structural design is compact and occupies a small area. The resulting dehumidification treatment device has more comprehensive functions and can greatly improve the frequency of equipment use.

[0013] According to one embodiment of the present invention, the area of ​​the top cover is smaller than the area of ​​the water receiving tray, and the projection of the top cover on the water receiving tray falls entirely on the water receiving tray. In the humidification mode of the air treatment equipment, the water in the water cavity flows through the edge of the water cavity and falls into the water receiving tray, forming a water curtain between the top cover and the water receiving tray.

[0014] According to one embodiment of the present invention, a guide component is also provided on the top cover, and the guide component is suitable for guiding the water in the water chamber to the outer surface of the heat exchange tube in the humidification mode of the air treatment equipment, so as to form a wet curtain on the outer surface of the heat exchange tube located in the cold air duct.

[0015] According to one embodiment of the present invention, the water cavity is formed on the upper surface of the top cover, and the top cover is provided with a cold air outlet of the cold air duct. The edge position of the cold air outlet protrudes toward the water cavity to form a surrounding plate, and the surrounding plate is provided with a notch connecting to the water cavity.

[0016] According to one embodiment of the present invention, the flow guiding component includes a flow guiding rib, the flow guiding rib passes through the notch and the cold air outlet, and the flow guiding rib extends from the water cavity toward the surface of the heat exchange tube.

[0017] According to one embodiment of the present invention, the top cover is a circular cover, the cold air outlet includes arc-shaped air outlet holes, the air outlet holes are distributed around the central axis of the top cover, the air outlet holes are connected to a plurality of the guide ribs, and the guide ribs correspond one-to-one to the heat exchange tubes.

[0018] According to one embodiment of the present invention, the bottom of the top cover is provided with a first mounting opening for mounting the first end of the heat exchange tube, and the first mounting opening is staggered with the cold air outlet;

[0019] and / or,

[0020] The cold air outlet and the heat exchange tube both include multiple layers, which are alternately distributed outward along the central axis of the top cover. In the humidification mode of the air treatment equipment, the water in the water cavity flows through the cold air outlet, through the wall of the heat exchange tube, and flows to the water receiving tray to form a multi-layer wet curtain.

[0021] According to one embodiment of the present invention, the top cover is provided with a hot air inlet and a hot air outlet, the air guide cavity includes an air inlet cavity, an air outlet cavity and a transition cavity, the air inlet cavity and the air outlet cavity are provided on the top cover, the transition cavity is provided on the water receiving tray, the heat exchange pipe includes an air inlet pipe and an air outlet pipe, the first end of the air inlet pipe is connected to the air inlet cavity, the first end of the air outlet pipe is connected to the air outlet cavity, the second end of the air inlet pipe and the second end of the air outlet pipe are connected through the transition cavity.

[0022] According to one embodiment of the present invention, the air inlet chamber includes a plurality of air inlet channels connected to the hot air inlet, the plurality of air inlet channels are arranged in parallel, and each of the air inlet channels corresponds to a plurality of the air inlet pipes; the air outlet chamber includes a plurality of air outlet channels connected to the hot air outlet, the plurality of air outlet channels are arranged in parallel, and each of the air outlet channels corresponds to a plurality of the air outlet pipes; the air inlet channels and the air outlet channels are alternately distributed with the air outlet holes.

[0023] According to one embodiment of the present invention, the heat exchange tubes are distributed in an array, and the space between the outermost adjacent heat exchange tube walls forms the cold air inlet of the cold air duct.

[0024] According to one embodiment of the present invention, the top cover includes a first cover body and a second cover body that cooperate with each other; the second cover body is provided with a first mounting port for assembling the first end of the heat exchange tube, and part of the air guide cavity is formed between the first cover body and the second cover body.

[0025] According to one embodiment of the present invention, the first cover forms the water cavity, and the first cover is provided with a water injection channel communicating with the water cavity.

[0026] According to one embodiment of the present invention, the water receiving tray includes a first tray body and a second tray body that cooperate with each other, a portion of the air guide cavity is formed between the first tray body and the second tray body, and the first tray body is provided with a second mounting port for assembling the second end of the heat exchange tube.

[0027] According to one embodiment of the present invention, the first tray forms a water receiving trough and a drainage channel connected to the water receiving trough; the second tray is provided with the drainage port.

[0028] According to a second embodiment of the present invention, a dehumidification device includes a housing having an air inlet and an air outlet, and the housing is provided with:

[0029] The heat exchanger of the first embodiment;

[0030] Dehumidification wheel, including adsorption zone and regeneration zone;

[0031] a heater, located on a side of the dehumidification wheel facing away from the heat exchanger, adapted to heat the airflow passing through the heater and then flow it to the regeneration zone;

[0032] a conveying fan adapted to convey the airflow from the air inlet through the cold air duct of the heat exchanger, and then convey the airflow through the adsorption area of ​​the dehumidification wheel and then out of the air outlet;

[0033] The circulation fan is adapted to convey the airflow passing through the regeneration zone through the heat exchange tubes of the heat exchanger and then to the circulation fan.

[0034] According to one embodiment of the present invention, the dehumidification processing device includes a dehumidification mode and a humidification mode;

[0035] In the dehumidification mode, the airflow of the conveying fan passes through the dehumidification wheel to perform a dehumidification operation, and at the same time, the heater and the circulating fan work to regenerate the dehumidification wheel;

[0036] In the humidification mode, the heater and the circulation fan do not work, and the airflow of the conveying fan performs a humidification operation when flowing through the cold air duct of the heat exchanger.

[0037] According to one embodiment of the present invention, a water tank is further provided in the casing, and the heat exchange condensed water in the dehumidification mode and the circulating humidification water in the humidification mode are both connected to the water tank through the water receiving tray for recovery, and the water tank is connected to the water cavity on the top cover through a water pump.

[0038] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0039] Through structural improvements, a humidification function is added to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, the humidity can also be adjusted, so that the equipment has both dehumidification and humidification functions. The whole machine has a compact structure and occupies a small area. Within a limited space, it can achieve more comprehensive functions and greatly increase the frequency of equipment use.

[0040] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 Schematic diagram of the structure of a heat exchanger of a dehumidification treatment device provided in an embodiment of the present invention;

[0043] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of part A;

[0044] Figure 3 Schematic diagram of the structural assembly relationship of the heat exchanger of the dehumidification treatment device provided by an embodiment of the present invention;

[0045] Figure 4 is a structural schematic diagram of a first cover provided by an embodiment of the present invention;

[0046] Figure 5 is a structural schematic diagram of a second cover provided by an embodiment of the present invention;

[0047] Figure 6 is a structural schematic diagram of a first disk provided by an embodiment of the present invention;

[0048] Figure 7 is a structural schematic diagram of a second disk provided by an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram of the structural assembly relationship of the dehumidification processing device provided by an embodiment of the present invention;

[0050] Figure 9 This is a schematic diagram of the external structure of the dehumidification processing device provided by an embodiment of the present invention;

[0051] Figure 10 This is a dehumidification principle diagram of the dehumidification processing device provided in an embodiment of the present invention.

[0052] Reference numerals:

[0053] 1: Top cover; 101: Water chamber; 102: Flow guide component; 1021: Flow guide rib; 103: Hot air inlet; 104: Hot air outlet; 11: First cover; 111: Water injection channel; 12: Second cover; 121: First installation port;

[0054] 2: water tray; 201: drain port; 21: first tray; 211: second mounting port; 212: water trough; 213: drainage channel; 22: second tray;

[0055] 3: air guide cavity; 301: air inlet cavity; 3011: air inlet channel; 302: air outlet cavity; 3021: air outlet channel; 303: transition cavity;

[0056] 4: heat exchange tube; 401: air inlet pipe; 402: air outlet pipe;

[0057] 5: Cold air duct; 501: Cold air outlet; 5011: Air outlet; 502: Enclosure; 503: Notch; 504: Cold air inlet;

[0058] 6: Casing; 601: Air inlet; 602: Air outlet; 603: Top plate; 604: Support assembly; 605: Rotor assembly mounting plate; 606: Base; 607: Door assembly; 608: Side panel; 609: Water tank; 610: Filter assembly; 61: Heat exchanger; 62: Dehumidification wheel; 621: Adsorption zone; 622: Regeneration zone; 63: Heater; 64: Conveying fan; 65: Circulation fan. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0060] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0061] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0062] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0063] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0064] According to the first embodiment of the present invention, a heat exchanger 61 of a dehumidification treatment device is provided. Figure 1 and Figure 3 The heat exchanger 61 includes a top cover 1, a water receiving pan 2 and a heat exchange tube 4. The top cover 1 and the water receiving pan 2 are both provided with an air guide cavity 3, and the water receiving pan 2 is provided with a drain outlet 201; the heat exchange tube 4 is installed between the top cover 1 and the water receiving pan 2, and the heat exchange tube 4 is connected to the outside through the air guide cavity 3. A cold air duct 5 is formed in the space outside the tube wall of the heat exchange tube 4. The air in the cold air duct 5 is suitable for heat exchange with the air in the heat exchange tube 4 in the dehumidification mode of the air treatment equipment; the top cover 1 is provided with a water cavity 101, and the water in the water cavity 101 is suitable for humidifying the air in the cold air duct 5 in the humidification mode of the air treatment equipment.

[0065] It can be understood that the structural design of the heat exchanger 61 constitutes two channels of the heat exchanger 61, one is the external channel of the heat exchanger 61, that is, the cold air duct 5 formed by the space outside the tube wall of the heat exchange tube 4, and the other is the internal channel of the heat exchanger 61, that is, the heat exchange channel formed by the top cover 1, the air guide cavity 3 inside the water receiving tray 2 and multiple heat exchange tubes 4.

[0066] The internal channel of the heat exchanger 61 is used during the dehumidification process. After the circulating hot and humid gas regenerates the dehumidification wheel 62, it is condensed in the internal channel of the heat exchanger 61. The external channel of the heat exchanger 61 is used to circulate the air to be treated during the dehumidification and humidification operations. The difference between the external channel of the heat exchanger 61 during the dehumidification and humidification operations is that during the humidification operation, the water in the water chamber 101 is directed to the outer surface of the heat exchange tube 4 to form a wet curtain located in the cold air duct 5 on the outer surface of the heat exchange tube 4, or the water in the water chamber 101 flows directly from the edge of the water chamber 101 to the water receiving tray, thus forming a water curtain between the top cover 1 and the water receiving tray 2. Whether it is a wet curtain or a water curtain, it can be used to humidify the air flowing through the cold air duct 5. During the dehumidification operation, the water in the water chamber 101 is not used for humidification. The cold air duct 5 is in a dry state, and the air flowing through the cold air duct 5 directly enters the next dehumidification step.

[0067] Specifically, this embodiment provides a humidification process in a humidification mode. In this embodiment, the area of ​​the top cover 1 is smaller than the area of ​​the water receiving pan 2, and the projection of the top cover 1 on the water receiving pan 2 falls entirely on the water receiving pan 2, that is, the axial projection area of ​​the water receiving pan 2 is larger than the axial projection area of ​​the top cover 1. All water flowing down from the top cover 1 can be received by the water receiving pan 2. In the humidification mode of the air handling device, the water in the water cavity 101 flows through the edge of the water cavity 101 and continues downward along the edge of the top cover 1 until it falls into the water receiving pan 2, forming a water curtain between the top cover 1 and the water receiving pan 2. Before entering the cold air duct 5 outside the wall of the heat exchange tube 4, the air to be humidified must first pass through the water curtain. The air passing through the water curtain will carry some water vapor, forming a humidification effect.

[0068] In another embodiment of the humidification process in humidification mode, in this embodiment, a flow guide component 102 is further provided on the top cover 1. The flow guide component 102 is suitable for guiding the water in the water chamber 101 to the outer surface of the heat exchange tube 4 in the humidification mode of the air handling equipment, so as to form a wet curtain on the outer surface of the heat exchange tube 4 located in the cold air duct 5. During the humidification operation, the water chamber 101 contains water for humidification. The flow guide component 102 guides the water in the water chamber 101 to the outer surface of the heat exchange tube 4. The water has a certain adhesion force and will form a water film on the outer surface of the heat exchange tube 4. When the air to be humidified passes through the cold air duct 5, the water film evaporates to form water vapor. At this time, the heat exchange tube 4 acts as a wet curtain, so that the air to be humidified flowing through the cold air duct 5 is humidified.

[0069] During the dehumidification operation, there is no water in the water chamber 101. After the dehumidified air flows through the cold air duct 5, it enters the dehumidification wheel 62 for dehumidification to obtain dry air. The dehumidification wheel 62 needs to be regenerated after the dehumidification operation. Combined with the dehumidification treatment device mentioned later, the heated air is blown through the regeneration area 622 of the dehumidification wheel 62 so that part of the dehumidification wheel 62 has the dehumidification function again, and the hot air undergoing the regeneration process must return to the structure of the heat exchanger 61 of this embodiment for condensation. Specifically, after the hot air enters the heat exchanger 61, heat exchange and condensation are carried out in the heat exchange channel formed by the top cover 1, the air guide cavity 3 inside the water receiving tray 2 and the heat exchange pipe 4, and the condensed water is discharged from the drain outlet 201.

[0070] The heat exchanger 61 of the dehumidification treatment device provided in this embodiment can simultaneously meet the working requirements of the air treatment equipment in humidification mode and dehumidification mode through structural design. Humidification and dehumidification work can share a set of devices. The structural design is compact and occupies a small area. The resulting dehumidification treatment device has more comprehensive functions and can greatly increase the frequency of equipment use.

[0071] In view of the specific role of the heat exchanger 61 in the humidification process, this embodiment further explains the specific structure of the heat exchanger 61 in the humidification process "the guide component 102 guides the water in the water cavity 101 to the outer surface of the heat exchange tube 4". Figure 1 and Figure 2 As shown, in this embodiment, the water cavity 101 is formed on the upper surface of the top cover 1, and the top cover 1 is provided with a cold air outlet 501 of the cold air duct 5, and the edge position of the cold air outlet 501 protrudes toward the water cavity 101 to form a surrounding plate 502, and the surrounding plate 502 is provided with a notch 503 connected to the water cavity 101, and the guide component 102 includes a guide rib 1021, which passes through the notch 503 and the cold air outlet 501, and the guide rib 1021 extends from the water cavity 101 toward the surface of the heat exchange tube 4.

[0072] Among them, the water cavity 101 is used to store water used for humidification, and the enclosure 502 can prevent water from excessively flowing into the cold air duct 5. To guide the water during the humidification process, it is necessary to rely on the guide ribs 1021. Since the guide ribs 1021 extend from the water cavity 101 toward the surface of the heat exchange tube 4, the water in the water cavity 101 follows the extension direction of the guide ribs 1021, from the gap 503 through the enclosure 502 into the cold air duct 5. Water has a certain adhesion force. In the cold air duct 5, it will also flow along the guide ribs 1021, and then flow to the surface of the heat exchange tube 4, forming a water film on the surface of the heat exchange tube 4. At this time, the heat exchange tube 4 has the function of a wet curtain. When air flows through, the water film evaporates to form water vapor, which humidifies the air.

[0073] An embodiment of the present invention is shown in Figure 4 and Figure 5As shown, the top cover 1 is a circular cover, and the cold air outlet 501 includes multiple arc-shaped air outlet holes 5011. The multiple air outlet holes 5011 are coaxially distributed around the central axis of the top cover 1. All air outlet holes 5011 are connected to multiple guide ribs 1021, and the guide ribs 1021 correspond one-to-one to the heat exchange tubes 4.

[0074] The circular cover structure of the top cover 1 has multiple arc-shaped air outlets 5011 distributed around the central axis of the top cover 1. In this structure, the heat exchange tube 4 can only be connected to the top cover 1 in the gap between the multiple arc-shaped air outlets 5011. Since the multiple air outlets 5011 are coaxially distributed around the central axis of the top cover 1, this indirectly ensures that the heat exchange tubes 4 are also arranged corresponding to the arc-shaped air outlets, thereby ensuring the orderly distribution of the heat exchange tubes 4. All air outlets 5011 are connected to multiple guide ribs 1021, and the guide ribs 1021 correspond one-to-one with the heat exchange tubes 4 for diversion. That is, the water discharged from the water cavity 101 will flow downstream to the corresponding heat exchange tube 4. The precise flow direction of the water can form a wet curtain on the surface of all heat exchange tubes 4, accelerating the formation of a water film on the outer surface of the heat exchange tubes 4, improving the humidification efficiency, and ensuring the humidification effect.

[0075] It is understandable that in the above embodiment structure, the top cover 1 is a circular cover structure, but it is not limited to a circular cover structure. The top cover 1 can also be in other shapes. Correspondingly, the structure of the cold air outlet 501 is not limited to an arc structure coaxially distributed around the central axis of the top cover 1. It can also present other structures and distribution methods, as long as it can enable the guide ribs 1021 to guide water to the heat exchange tube 4. As for the diversion effect of the guide ribs 1021, it is not necessary for all heat exchange tubes 4 to correspond to the guide ribs 1021. Obviously, if the guide ribs 1021 only guide the water in the water cavity 101 to part of the heat exchange tubes 4, it can also have a humidification effect to a certain extent. For example, only forming a wet curtain on the outer surface of the outermost heat exchange tube 4 can also have a humidification effect. The above embodiment provides a specific implementation structure, but is not limited to this implementation structure.

[0076] Under the above-mentioned structure of "multiple arc-shaped air outlet holes 5011 distributed around the central axis of the top cover 1", in this embodiment, a first mounting port 121 for assembling the first end of the heat exchange tube 4 is provided at the bottom of the top cover 1, and the first mounting port 121 is staggered with the cold air outlet 501; and / or, the cold air outlet 501 and the heat exchange tube 4 both include multiple layers, which are alternately distributed outward along the central axis of the top cover 1. The staggered arrangement of the first mounting port 121 and the cold air outlet 501 can also form a cold air outlet 501 and the heat exchange tube 4 alternately distributed outward along the central axis of the top cover 1. In this way, as the water in the water cavity 101 flows through the wall of the heat exchange tube 4 through the cold air outlet 501, it flows to the water receiving tray 2 to form a wet curtain, and finally multiple layers of wet curtains are formed in the cold air duct 5. In the humidification mode of the air treatment equipment, the air to be humidified can be humidified multiple times during the process of flowing through the cold air duct 5, and the humidification effect is better.

[0077] One embodiment of the present invention, combined with Figure 3 、 Figure 4 and Figure 5 As shown, a hot air inlet 103 and a hot air outlet 104 are provided on the top cover 1, and the air guide cavity 3 includes an air inlet cavity 301, an air outlet cavity 302 and a transition cavity 303 (refer to Figure 7 ), the air inlet cavity 301 and the air outlet cavity 302 are provided on the top cover 1. Figure 6 and Figure 7 The transition chamber 303 is arranged in the water receiving tray 2, and the heat exchange tube 4 includes an air inlet pipe 401 and an air outlet pipe 402. The first end of the air inlet pipe 401 is connected to the air inlet chamber 301, the first end of the air outlet pipe 402 is connected to the air outlet chamber 302, and the second end of the air inlet pipe 401 and the second end of the air outlet pipe 402 are connected through the transition chamber 303.

[0078] The air inlet chamber 301, the air outlet chamber 302 and the transition chamber 303 constitute a channel for condensation of humid hot air inside the heat exchanger 61. The humid hot air enters through the hot air inlet 103, passes through the air inlet chamber 301, the air inlet pipe 401, the transition chamber 303, the air outlet pipe 402 and the air outlet chamber 302 in sequence, and finally is discharged as dry air from the hot air outlet 104. During the dehumidification process using the heat exchanger 61, hot and humid air enters through the hot air inlet 103 of the top cover 1, first entering the air inlet chamber 301 of the top cover 1, and then entering the air inlet pipe 401 for the first heat exchange and condensation. After the first heat exchange and condensation through the air inlet pipe 401, the air enters the transition chamber 303 of the water receiving tray 2. The condensed water after the heat exchange and condensation remains in the water receiving tray 2. The air then enters the air outlet pipe 402 from the transition chamber 303 of the water receiving tray 2 for the second heat exchange and condensation. The condensed water after the second heat exchange and condensation flows back into the transition chamber 303 of the water receiving tray 2. The air after the second heat exchange and condensation enters the air outlet chamber 302 of the top cover 1 and is discharged as dry air through the hot air outlet 104 of the top cover 1. As can be seen from the structure of this embodiment, in the structure of the heat exchanger 61, the functions of the top cover 1 are highly integrated. Not only can a wet curtain be formed on the heat exchange tube 4 through the cold air outlet 501 of the top cover 1, but hot and humid air can also be introduced into the top cover 1 and dry air can be discharged. From the perspective of the overall equipment, by integrating single equipment parts with higher integration, the overall structure can be simplified, costs can be reduced, and the size of the entire equipment can be controlled.

[0079] It is understood that the air guide cavity 3 may include the air inlet cavity 301, the air outlet cavity 302, and the transition cavity 303, or may include only the air inlet cavity 301 and the air outlet cavity 302. In the case where the air guide cavity 3 includes only the air inlet cavity 301 and the air outlet cavity 302, one of the air inlet cavity 301 and the air outlet cavity 302 can be provided in the top cover 1, and the other can be provided in the water receiving tray 2. When the air guide cavity 3 includes the air inlet cavity 301, the air outlet cavity 302 and the transition cavity 303 at the same time, the distribution of the air inlet cavity 301, the air outlet cavity 302 and the transition cavity 303 is not limited to the above example, and the setting positions of the three can be changed, as long as it can be ensured that the air inlet pipe 401 and the air outlet pipe 402 can be connected through the transition cavity 303, the air inlet pipe 401 is connected to the outside through the air inlet cavity 301, and the air outlet pipe 402 is connected to the outside through the air outlet cavity 302. As for whether the air inlet cavity 301, the air outlet cavity 302 and the transition cavity 303 are specifically set on the top cover 1 or the water receiving tray 2, there is no restriction and all can meet the implementation purpose.

[0080] An embodiment of the present invention is shown in Figure 5The air inlet chamber 301 includes multiple air inlet channels 3011 connected to the hot air inlet 103. The multiple air inlet channels 3011 are arranged in parallel, and each air inlet channel 3011 is connected to multiple air inlet pipes 401. The air outlet chamber 302 includes multiple air outlet channels 3021 connected to the hot air outlet 104. The multiple air outlet channels 3021 are arranged in parallel, and each air outlet channel 3021 is connected to multiple air outlet pipes 402. The air inlet channels 3011 and the air outlet channels 3021 are arranged alternately with the air outlet holes 5011. The alternating arrangement requires that the air inlet chamber 301 and the air outlet chamber 302 be arranged in parallel. If the alternating arrangement is not adopted, the structures of the air inlet chamber 301 and the air outlet chamber 302 can be simpler. The alternating arrangement can improve the heat exchange efficiency of the heat exchanger 61 in the dehumidification mode, ensuring sufficient condensation.

[0081] The multiple parallel inlet channels 3011 and outlet channels 3021 ensure more uniform airflow and ensure effective and efficient heat exchange. Each inlet channel 3011 is connected to multiple inlet pipes 401, and each outlet channel 3021 is connected to multiple outlet pipes 402, thereby ensuring that as many heat exchange tubes 4 as possible can be distributed. The inlet channels 3011 and outlet channels 3021 are alternately arranged with the outlet holes 5011. This alternating arrangement improves the heat exchange efficiency of the heat exchanger 61 in dehumidification mode, ensuring sufficient condensation. It also improves humidification efficiency in humidification mode, ensuring faster and more uniform formation of the wet curtain.

[0082] It is understandable that because of the alternating distribution, the air inlet chamber 301 and the air outlet chamber 302 must be arranged in the form of parallel channels. If they are not alternately distributed, the structures of the air inlet chamber 301 and the air outlet chamber 302 can be simpler. For example, two simple cavities can serve as the air inlet chamber 301 and the air outlet chamber 302 and can also play a corresponding role, but the structural effect is not as good as that of this embodiment.

[0083] In the above-described distribution of the air inlet channels 3011 and the air outlet channels 3021, the top cover 1 can be a circular cover, and the air inlet channels 3011 and the air outlet channels 3021 can be arc-shaped, with all the air inlet channels 3011 and the air outlet channels 3021 being coaxially distributed around the central axis of the top cover 1. That is, the central axis of the air inlet channels 3011 is the central axis of the top cover 1, and the central axis of the air outlet channels 3021 is also the central axis of the top cover 1. The distribution of the arc-shaped air ducts (unless otherwise specified, the air ducts refer to at least one of the air inlet channels 3011 and the air outlet channels 3021) helps reduce airflow resistance.

[0084] In this embodiment, the air inlet channel 3011 is connected to the air outlet channel 3021 in a one-to-one correspondence through the transition chamber 303. This allows for smoother air flow, ensuring that the airflow from the hot air inlet 103 and the airflow from the hot air outlet 104 are equal or close in flow rate. This allows the airflow to pass through the heat exchanger 61 quickly, preventing airflow backlogs or air gaps within the heat exchanger 61, thereby improving heat exchange efficiency. Of course, the air inlet channel 3011 and the air outlet channel 3021 may also be arranged in other configurations besides a one-to-one correspondence.

[0085] One embodiment of the present invention, combined with Figure 1 and Figure 3 Heat exchange tubes 4 are arranged in an array, with the spaces between the outermost adjacent heat exchange tubes 4 forming cold air inlet 504 for cold air duct 5. This array arrangement of heat exchange tubes 4 ensures uniform distribution of cold air inlet 504, resulting in uniform air flow into cold air duct 5 of heat exchanger 61. This further orderly distribution of heat exchange tubes 4 ensures uniform humidification in humidification mode and improved dehumidification efficiency in dehumidification mode.

[0086] An embodiment of the present invention is shown in Figure 3 The top cover 1 includes a first cover body 11 and a second cover body 12 that cooperate with each other. The first cover body 11 forms a water cavity 101 and is provided with a water injection channel 111 that connects to the water cavity 101. The second cover body 12 is provided with a first mounting port 121 for mounting the first end of the heat exchange tube 4. A portion of the air guide cavity 3 is formed between the first cover body 11 and the second cover body 12. The water receiving tray 2 includes a first tray body 21 and a second tray body 22 that cooperate with each other. A portion of the air guide cavity 3 is formed between the first tray body 21 and the second tray body 22. The first tray body 21 is provided with a second mounting port 211 for mounting the second end of the heat exchange tube 4. The first tray body 21 forms a water receiving trough 212 and a drainage channel 213 that connects to the water receiving trough 212. The second tray body 22 is provided with a drainage port 201.

[0087] The first cover 11 and the second cover 12 are easy to process. The first cover 11 and the second cover 12 can be connected in a detachable manner, or they can be connected as one piece. Similarly, the first plate 21 and the second plate 22 are similar to the first cover 11 and the second cover 12. The first mounting port 121 and the second mounting port 211 are used to connect and install the heat exchange tube 4, which is convenient for the assembly of the heat exchange tube 4. The heat exchange tube 4 and the top cover 1 and the water receiving tray 2 can be connected in a detachable manner. Then, during the use of the heat exchanger 61, the length and number of the heat exchange tube 4 can be adjusted as needed, thereby changing the heat exchange and condensation effect of the heat exchanger 61, and the versatility of the whole machine is better. The heat exchange tube 4 can be an aluminum tube or a plastic tube or other pipe material suitable for heat exchange. In order to ensure better heat exchange efficiency, the heat exchange tube 4 can be made of an aluminum tube with higher heat exchange efficiency.

[0088] In this embodiment, in addition to the internal channel of the heat exchanger 61 formed by the air guide cavity 3 and the heat exchange tube 4 for condensation heat exchange, the main structure is to optimize the working process in the humidification mode in detail. A fence is set on the edge of the upper surface of the first cover body 11, a water cavity 101 is formed on the first cover body 11, and a water injection channel 111 connected to the water cavity 101 is set on the edge fence of the first cover body 11; a fence is set on the edge of the upper surface of the first disk body 21, a water receiving groove 212 is formed on the upper surface of the first disk body 21, and a drainage channel 213 connected to the water receiving groove 212 is set on the edge fence of the first disk body 21. The second disk body 22 is provided with a drainage port 201.

[0089] During the humidification process, water is injected into the water cavity 101 on the upper surface of the first cover 11 through the water injection channel 111, ensuring that water is always present in the water cavity 101. The water in the water cavity 101 flows downward from the cold air duct 5 along the flow guide 102. The water has a certain adhesion and flows along the flow guide 102 to the heat exchange tube 4. There, it has a certain adhesion and covers the heat exchange tube 4, forming a water film on the outer surface of the heat exchange tube 4. When the air to be humidified forms a breeze, the water film evaporates to form water vapor. At this time, the heat exchange tube 4 acts as a wet curtain, humidifying the treated air flowing through the cold air duct 5. The unevaporated water on the heat exchange tube 4 flows under the action of gravity to the upper surface of the first disk 21, and then is discharged into the water tank 609 through the drainage channel 213.

[0090] It can be understood that the water injection channel 111 and the drainage channel 213 are both connected to the water tank 609 to form a circulation. This water tank 609 is also the water tank 609 into which the condensed water drain outlet 201 is connected during the dehumidification process. Humidification and dehumidification share the water tank 609, and the overall structure is more compact. It can also save water resources, so that the water resources in the dehumidification system can be recycled.

[0091] The second embodiment of the present invention proposes a dehumidification treatment device, which includes the above-mentioned heat exchanger 61, which is equivalent to adding a humidification function to the dehumidification equipment. In addition to ensuring the dehumidification effect of the equipment, it can also adjust the humidity, so that the equipment has both dehumidification and humidification functions. The whole machine has a compact structure and occupies a small area. Within a limited space, it can achieve more comprehensive functions and greatly improve the frequency of use of the equipment.

[0092] A dehumidification treatment device according to the second aspect of the present invention, combined with Figure 8 and Figure 9 As shown, it includes a housing 6, which is provided with an air inlet 601 and an air outlet 602. The housing 6 is equipped with: a heat exchanger 61, a dehumidification wheel 62, a heater 63, a conveying fan 64 and a circulating fan 65, wherein, see Figure 10The dehumidification wheel 62 includes an adsorption zone 621 and a regeneration zone 622; the heater 63 is located on the side of the dehumidification wheel 62 facing away from the heat exchanger 61; it is suitable for heating the airflow flowing through the heater 63 and then flowing it to the regeneration zone 622; the conveying fan 64 is suitable for conveying the airflow from the air inlet 601 through the cold air duct 5 of the heat exchanger 61, and then conveying it through the adsorption zone 621 of the dehumidification wheel 62 and then flowing out from the air outlet 602; the circulating fan 65 is suitable for conveying the airflow flowing through the regeneration zone 622 through the heat exchange tube 4 of the heat exchanger 61 and then flowing to the circulating fan 65.

[0093] It can be understood that in this embodiment, the heat exchanger 61, the dehumidification wheel 62 and the heater 63 cooperate to realize the dehumidification function of the dehumidification treatment device, and the heat exchanger 61 is designed to realize the humidification function of the dehumidification treatment device. Some components (such as the heat exchanger 61 and the conveying fan 64) are shared in the humidification mode and the dehumidification mode. At the same time, the humidification mode and the dehumidification mode work relatively independently and do not affect each other.

[0094] The dehumidification treatment device includes a dehumidification mode and a humidification mode. In the dehumidification mode, the airflow of the conveying fan 64 passes through the dehumidification wheel 62 to perform a dehumidification operation. At the same time, the heater 63 and the circulating fan 65 work to regenerate the dehumidification wheel 62; in the humidification mode, the heater 63 and the circulating fan 65 do not work, and the airflow of the conveying fan 64 performs a humidification operation when flowing through the cold air duct 5 of the heat exchanger 61.

[0095] In a specific embodiment of the dehumidification treatment device, an air inlet 601 is provided on the side of the housing 6, and an air outlet 602 is provided on the top of the housing 6. The air inlet 601 and the air outlet 602 are suitable for conveying the air flow of the fan 64. Figure 8 The dehumidification wheel 62 is arranged horizontally and is installed above the top cover 1; the casing 6 includes a top plate 603, a support assembly 604, a wheel assembly mounting plate 605, an air inlet enclosure and a base 606 from top to bottom, and the air inlet enclosure includes door assemblies 607 on both sides and side panels 608 on the front and rear sides. An air intake grille is provided on the door assembly 607 and the side panels 608 to form an air inlet 601 for air intake. A water tank 609 is installed on the base 606, and a heat exchanger 61 is arranged on the water tank 609. The heat exchanger 61 is surrounded by air inlet enclosures, and a filter assembly 610 is arranged between the air inlet enclosure and the heat exchanger 61. Above the heat exchanger 61 is a dehumidification wheel 62, and above the dehumidification wheel 62 are a heater 63 and a circulation fan 65. The dehumidification wheel 62, the heater 63 and the conveying fan 64 are installed on the wheel assembly mounting plate 605, and above the heater 63 and the circulation fan 65 is the conveying fan 64. The conveying fan 64 is fixed to the support assembly 604, and the upper part of the conveying fan 64 is a top plate 603, and an air outlet grille is arranged on the top plate 603 to form an air outlet 602 for air outlet.

[0096] In the above structure, the dehumidification device has two functions: humidification and dehumidification. The specific working process is as follows:

[0097] Dehumidification process: please combine Figure 8 、 Figure 9 and Figure 10 The air to be dehumidified enters the casing 6 from the air inlet 601, and first passes through the filter assembly 610 to filter out dust and other impurities in the air. Then the filtered air passes through the cold air duct 5 on the heat exchanger 61 to the adsorption area 621 of the dehumidification wheel 62. The hygroscopic medium in the adsorption area 621 adsorbs water vapor in the air, and the water vapor undergoes phase change and releases latent heat at the same time. The treated air becomes dry and hot air due to the reduction of its own moisture and the release of latent heat. After being transported by the conveying fan 64, it is discharged from the casing 6 from the air outlet 602 to obtain dehumidified air. During the dehumidification process, the dehumidification wheel 62 is in a rotating state. The dehumidification wheel 62 is divided into an adsorption area 621 and a regeneration area 622. The treated air to be dehumidified coming out of the cold air duct 5 passes through the adsorption area 621 for dehumidification; and the heater 63, the circulating fan 65 and the heat exchanger 61 are connected end to end to form an air duct suitable for air flow. The air flows through the regeneration area 622 of the dehumidification wheel 62. During the dehumidification process, the adsorption area 621 adsorbs water vapor and gradually tends to be saturated. As the dehumidification wheel 62 rotates, the saturated area rotates to the regeneration area 622, and the heater 63 heats the air. The hot air passes through the saturated area, causing the moisture adsorbed in the area to evaporate, thereby restoring the dehumidification capacity of the wheel; at the same time, the circulating air becomes humid hot air due to the absorption of the desorbed water vapor; thereafter, under the action of the circulating fan 65, the humid hot air is transported to the heat exchanger 61, and the humid hot air inside the heat exchanger 61 is condensed to separate moisture in the condenser channel. The condensed water flows into the water tank 609 through the drain outlet 201 of the heat exchanger 61. The humid hot air becomes dry air after passing through the heat exchanger 61 and is reused by the circulating fan 65, and this cycle repeats.

[0098] Humidification process: see Figure 3 、 Figure 4 、 Figure 8 and Figure 9The processed air enters the casing 6 from the air inlet 601, first passes through the filter assembly 610 to filter out dust and other impurities in the air, and then enters the cold air duct 5 on the heat exchanger 61. During the humidification process, the water cavity 101 on the top cover 1 guides water to the surface of the heat exchange tube 4 to form a water film, and performs humidification in the cold air duct 5 to increase the atomized water vapor or evaporate water, etc., so that the moisture content in the air passing through the cold air duct 5 increases, and then is transported by the conveying fan 64 and discharged from the casing 6 from the air outlet 602 to obtain humidified air. During the humidification process, the air to be humidified does not need to pass through the dehumidification wheel 62, so a gas channel that does not pass through the dehumidification wheel 62 can be added to facilitate the outflow of the air to be humidified. In the structure of this embodiment, considering the factor of saving space, the humidified air can pass through the dehumidification wheel 62 without adding an additional gas channel. When the humidification operation is performed, the heater 63 and the circulating fan 65 do not work, and the dehumidification wheel 62 does not rotate, that is, the area where the air passes through the dehumidification wheel 62 is a fixed area, and after the dehumidification wheel 62 absorbs moisture to saturation, it will not affect the dehumidification operation.

[0099] In the structure of the above-mentioned dehumidification treatment device, a water tank 609 is provided in the casing 6 of this embodiment. The heat exchange condensed water in the dehumidification mode and the circulating humidification water in the humidification mode are both connected to the water tank 609 through the water receiving tray 2 for recovery. The water tank 609 is connected to the water cavity 101 on the top cover 1 through a water pump.

[0100] Specifically, Figure 6 and Figure 7 Combine Figure 8 As shown, the drainage channel 213 on the first plate body 21 of the water receiving tray 2 is connected to the water tank 609, and the drain port 201 of the second plate body 22 of the water receiving tray 2 is also connected to the water tank 609. During the dehumidification process, the heat exchange condensation water generated by the heat exchange and condensation process in the heat exchanger 61 is eventually discharged into the water tank 609 through the drain port 201. Similarly, during the humidification process, the water flowing down from the water cavity 101 of the top cover 1 for forming the wet curtain eventually flows into the water receiving trough 212 on the first plate body 21, and is discharged into the water tank 609 through the drainage channel 213 on the water receiving trough 212. The water tank 609 is connected to the water cavity 101 on the top cover 1 through a water pump. When humidification operation is required, water is pumped into the water cavity 101 by the water pump for humidification operation, thereby forming a recycling of water in the dehumidification process.

[0101] Since the dehumidification device includes two modes, humidification mode and dehumidification mode, in humidification mode, water is needed for humidification operation, while in dehumidification mode, a completely dry environment is required. Therefore, when switching between humidification and dehumidification modes, the water flow needs to be strictly controlled. The control of the water flow needs to be completed by the water tank 609 and the water pump. Specifically, when the water in the water cavity 101 flows downward from the edge of the water cavity 101 to form a water curtain for humidification, the water cavity 101 of the top cover 1 can be set to a water guide surface structure with a high middle and low surroundings. After the water pumped out from the water tank 609 enters the water cavity 101, Instead of staying in the water chamber 101, the water flows directly out of the edge, following the terrain, forming a water curtain between the top cover 1 and the water receiving tray 2. When the water in the water chamber 101 flows downward from the cold air duct 5 and is directed by the guide ribs 1021 to the outer wall of the heat exchange tube 4 to form a wet curtain for humidification, the cold air outlet 501 of the cold air duct 5 in the water chamber 101 of the top cover 1 can be set as the lowest point of the water chamber 101. After the water pumped from the water tank 609 enters the water chamber 101, it flows directly to the cold air outlet 501 following the terrain. Then, under the guidance of the guide ribs 1021, it flows downward to the outer wall of the heat exchange tube 4, forming a wet curtain. Regardless of which humidification method is used, the water will not stay in the water chamber 101 for too long, but will flow downward and eventually enter the water receiving tray 2, from which it is discharged into the water tank 609. When the humidification mode is switched to the dehumidification mode, the interior of the device is always dry, facilitating the smooth operation of the dehumidification operation.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A heat exchanger for a dehumidification treatment device, characterized in that: The heat exchanger comprises: A top cover and a water receiving tray, wherein both the top cover and the water receiving tray are provided with an air guide cavity, and the water receiving tray is provided with a drain outlet; A heat exchange tube is installed between the top cover and the water receiving tray, the heat exchange tube is connected to the outside through the air guide cavity, and a cold air duct is formed in the space outside the tube wall of the heat exchange tube. The air in the cold air duct is suitable for heat exchange with the air in the heat exchange tube in the dehumidification mode of the air handling equipment; The top cover is provided with a water cavity, which is formed on the upper surface of the top cover. The water in the water cavity is suitable for humidifying the air in the cold air duct under the humidification mode of the air treatment equipment; the top cover is provided with a cold air outlet of the cold air duct, and the edge position of the cold air outlet protrudes toward the water cavity to form a surrounding plate, and the surrounding plate is provided with a notch connected to the water cavity.

2. The heat exchanger of the dehumidification treatment device according to claim 1, characterized in that: The area of ​​the top cover is smaller than the area of ​​the water receiving tray, and the orthographic projection of the top cover on the water receiving tray is located in the water receiving tray. In the humidification mode of the air treatment equipment, the water in the water cavity flows through the edge of the water cavity and falls into the water receiving tray, forming a wet curtain between the top cover and the water receiving tray.

3. The heat exchanger of the dehumidification treatment device according to claim 2, characterized in that: The top cover is also provided with a flow guide component, which is suitable for guiding the water in the water cavity to the outer surface of the heat exchange tube in the humidification mode of the air treatment equipment, so as to form the wet curtain located in the cold air duct on the outer surface of the heat exchange tube.

4. The heat exchanger of the dehumidification treatment device according to claim 3, characterized in that: The flow guiding component includes a flow guiding rib, the flow guiding rib passes through the notch and the cold air outlet, and the flow guiding rib extends from the water cavity toward the surface of the heat exchange tube.

5. The heat exchanger of the dehumidification treatment device according to claim 4, characterized in that: The top cover is a circular cover, and the cold air outlet includes arc-shaped air outlet holes. The air outlet holes are distributed around the central axis of the top cover, and the air outlet holes are connected to a plurality of the guide ribs.

6. The heat exchanger of the dehumidification treatment device according to claim 2, characterized in that: The bottom of the top cover is provided with a first mounting opening for assembling the first end of the heat exchange tube, and the first mounting opening is staggered with the cold air outlet; and / or, The cold air outlet and the heat exchange tube both include multiple layers and are alternately distributed along the radial direction of the top cover. In the humidification mode of the air handling equipment, the water in the water chamber flows through the cold air outlet, through the wall of the heat exchange tube, and flows to the water receiving tray to form multiple layers of the wet curtain.

7. The heat exchanger of the dehumidification treatment device according to claim 5, characterized in that: The top cover is provided with a hot air inlet and a hot air outlet, the air guide cavity includes an air inlet cavity, an air outlet cavity and a transition cavity, the air inlet cavity and the air outlet cavity are provided on the top cover, the transition cavity is provided on the water receiving tray, the heat exchange pipe includes an air inlet pipe and an air outlet pipe, the first end of the air inlet pipe is connected to the air inlet cavity, the first end of the air outlet pipe is connected to the air outlet cavity, the second end of the air inlet pipe and the second end of the air outlet pipe are connected through the transition cavity.

8. The heat exchanger of the dehumidification treatment device according to claim 7, characterized in that: The air inlet chamber includes multiple air inlet channels connected to the hot air inlet, and the multiple air inlet channels are arranged in parallel, and each of the air inlet channels corresponds to and is connected to multiple air inlet pipes; the air outlet chamber includes multiple air outlet channels connected to the hot air outlet, and the multiple air outlet channels are arranged in parallel, and each of the air outlet channels corresponds to and is connected to multiple air outlet pipes; the air inlet channels and the air outlet channels are alternately distributed with the air outlet holes.

9. The heat exchanger of the dehumidification treatment device according to claim 1, characterized in that: The heat exchange tubes are distributed in an array, and the space between the outermost adjacent heat exchange tube walls forms the cold air inlet of the cold air duct.

10. The heat exchanger for a dehumidification treatment device according to any one of claims 1 to 9, characterized in that: The top cover includes a first cover body and a second cover body that cooperate with each other; the second cover body is provided with a first mounting opening for assembling the first end of the heat exchange tube, and a part of the air guide cavity is formed between the first cover body and the second cover body.

11. The heat exchanger of the dehumidification treatment device according to claim 10, characterized in that: The first cover forms the water cavity, and the first cover is provided with a water injection channel communicating with the water cavity.

12. The heat exchanger for a dehumidification treatment device according to any one of claims 1 to 9, characterized in that: The water receiving tray includes a first tray body and a second tray body that cooperate with each other, a portion of the air guide cavity is formed between the first tray body and the second tray body, and the first tray body is provided with a second mounting port for assembling the second end of the heat exchange tube.

13. The heat exchanger of the dehumidification treatment device according to claim 12, characterized in that: The first disc forms a water receiving trough and a drainage channel connected to the water receiving trough; the second disc is provided with the drainage port.

14. A dehumidification device, comprising a housing, characterized in that: The housing is provided with an air inlet and an air outlet, and the housing is provided with: The heat exchanger according to any one of claims 1 to 13; Dehumidification wheel, including adsorption zone and regeneration zone; a heater, located on a side of the dehumidification wheel facing away from the heat exchanger, adapted to heat the airflow passing through the heater and then flow it to the regeneration zone; a conveying fan adapted to convey the airflow from the air inlet through the cold air duct of the heat exchanger, and then convey the airflow through the adsorption area of ​​the dehumidification wheel and then out of the air outlet; The circulation fan is adapted to convey the airflow passing through the regeneration zone through the heat exchange tubes of the heat exchanger and then to the circulation fan.

15. The dehumidification device according to claim 14, characterized in that: The dehumidification processing device includes a dehumidification mode and a humidification mode; In the dehumidification mode, the airflow of the conveying fan passes through the dehumidification wheel, and the heater and the circulating fan work to regenerate the dehumidification wheel; In the humidification mode, the heater and the circulation fan do not work, and the airflow of the delivery fan is humidified when flowing through the cold air duct of the heat exchanger.

16. The dehumidification device according to claim 15, characterized in that: A water tank is also provided in the casing. The heat exchange condensed water in the dehumidification mode and the circulating humidification water in the humidification mode are both connected to the water tank through a water receiving tray for recovery. The water tank is connected to the water cavity on the top cover through a water pump.

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