Dehumidification device with regenerable solid hygroscopic material and its use method and control method

Abstract

The present invention discloses a dehumidification device with regenerable solid hygroscopic materials and a method for using and controlling the same, which belongs to indoor dehumidification technology. Existing dehumidification devices are not conducive to the discharge of moisture, and the equipment is large in size and has high operating energy consumption. The present invention can switch the wind direction to a dehumidification mode or a regeneration mode through a first wind direction switching device and a second wind direction switching device. Therefore, the dehumidification device can work in a dehumidification mode, where the solid hygroscopic materials of the dehumidification system adsorb water vapor in the air to dehumidify the air, and can also work in a regeneration mode, where the water vapor adsorbed by the solid hygroscopic materials of the dehumidification system is removed, so that the solid hygroscopic materials of the dehumidification system can be reused. By changing the flow direction of the airflow, the solid hygroscopic materials of the dehumidification system are dehumidified or regenerated, which simplifies the pipeline configuration, makes the product structure simple, and is easy to install.

Description

Technical Field

[0001] The invention belongs to indoor dehumidification technology, and in particular relates to a dehumidification device with regenerable solid hygroscopic material and a use method and a control method thereof. Background Art

[0002] Excessive humidity in indoor spaces often causes a series of environmental problems, such as the growth of bacteria and mold, and the generation of odors. At the same time, humid air may affect the storage quality of various items and even damage human health. Therefore, it is necessary to adjust the ambient humidity of indoor spaces by means of ventilation and dehumidification. However, whether it is through natural ventilation by opening windows or forced ventilation by exhaust and ventilation fans, the humidity regulation capacity is limited, and it may even aggravate the humidity problem in indoor spaces when the climate is humid or the weather is rainy. Condensation dehumidification by means of compression refrigeration or thermoelectric refrigeration inevitably has the disadvantages of heavy equipment, large space occupation, difficult treatment of condensed water, and poor dehumidification effect at low temperatures. Compared with refrigeration condensation dehumidification, fixed bed solid adsorption dehumidification has the advantages of high dehumidification efficiency and no condensed water, but it cannot work continuously and needs to be regenerated after adsorption saturation, so its application scenarios are limited; and although the rotary solid adsorption dehumidification device can work continuously, its structure and working state are complex and it occupies a large space, which also limits its application.

[0003] In the prior art, Harbin Institute of Technology applied for a Chinese invention patent with announcement number CN108644928B on May 17, 2018 and authorized on May 15, 2020, which discloses "A solid adsorption dehumidification device with continuous moisture absorption and intermittent regeneration". The solid adsorption dehumidification device with continuous moisture absorption and intermittent regeneration includes a moisture absorption component, a heating device, a refrigeration compressor, an induced draft fan, a water storage tank and a mounting frame, wherein the moisture absorption component includes two layers of ventilation grid plates and two layers of heat-resistant wire mesh, the heat-resistant wire mesh is fixed between the ventilation grid plates, which are filled with solid moisture-absorbing materials, and the heating device is located between the heat-resistant wire meshes, the induced draft fan and the moisture absorption component are spaced and fixed on the upper part of the mounting frame, the condensing sheet and the heat sink are connected to the refrigeration compressor and fixed between the induced draft fan and the moisture absorption component, the water storage tank and the refrigeration compressor are fixed at the lower part of the mounting frame, and the water storage tank is located below the condensing sheet. This solution is based on fixed-bed solid adsorption dehumidification technology, which uses an induced draft fan to drive the airflow through the solid hygroscopic material for dehumidification. After dehumidification is completed, the same induced draft fan is used in conjunction with a heating device to regenerate the solid hygroscopic material. Therefore, the conveying direction of the regenerated exhaust gas is the same as that during dehumidification, which is not conducive to the discharge of moisture. Accordingly, this solution uses a refrigeration compressor to condense the moisture in the regenerated exhaust gas and then collect it for treatment, which increases the size of the equipment and operating energy consumption.

[0004] In addition, the prior art also has the following disadvantages:

[0005] The fixed bed solid adsorption dehumidifier must be regenerated after being saturated with moisture before it can work again. However, the two states of moisture absorption and regeneration cannot be switched automatically, so the automatic cycle of the dehumidification and regeneration process cannot be achieved, resulting in inconvenience in use.

[0006] The dehumidification module of the fixed-bed solid adsorption dehumidification device often needs to be combined with components such as fans and heating devices to work properly, resulting in the equipment being bulky and complex in structure, and lacking in practicality. Summary of the invention

[0007] The technical problem to be solved and the technical task proposed by the present invention are to overcome at least one technical defect mentioned in the prior art and to provide a dehumidification device with regenerable solid hygroscopic material and a use method and a control method thereof.

[0008] To achieve the above object, the dehumidification device with regenerable solid hygroscopic material of the present invention comprises an air supply system, a dehumidification system and a piping system, and is characterized in that:

[0009] The air supply system comprises an air inlet, a first air outlet, a second air outlet and a heating module, wherein the heating module is configured to heat the airflow discharged from the first air outlet;

[0010] The dehumidification system has a solid moisture absorbing material;

[0011] The pipeline system includes a first wind direction switching device and a second wind direction switching device, the first wind direction switching device has a return air pipeline, and the second wind direction switching device has an exhaust air pipeline;

[0012] The first air outlet, the first wind direction switching device, the dehumidification system, the second wind direction switching device, and the second air outlet are connected in series in sequence;

[0013] The first wind direction switching device and the second wind direction switching device are configured to switch the wind direction to a dehumidification mode or a regeneration mode. In the dehumidification mode, the airflow generated by the air supply system flows sequentially through the second air outlet, the second wind direction switching device, the dehumidification system, and the return air duct of the first wind direction switching device. In the regeneration mode, the airflow generated by the air supply system flows sequentially through the first air outlet, the first wind direction switching device, the dehumidification system, and the exhaust duct of the second wind direction switching device.

[0014] The technical solution can switch the wind direction to the dehumidification mode or the regeneration mode through the first wind direction switching device and the second wind direction switching device. Therefore, when the dehumidification device is working, it can work in the dehumidification mode, and the solid hygroscopic material of the dehumidification system absorbs the water vapor in the air to dehumidify the air. It can also work in the regeneration mode to remove the water vapor absorbed by the solid hygroscopic material of the dehumidification system, so that the solid hygroscopic material of the dehumidification system can be reused.

[0015] Preferably, the first wind direction switching device and the second wind direction switching device are configured to switch the wind direction to a ventilation mode for ventilation, and the ventilation mode is that the airflow generated by the air supply system flows through the second air outlet and the exhaust duct of the second wind direction switching device in sequence.

[0016] Preferably, the first wind direction switching device and the second wind direction switching device are configured to switch the wind direction to a heating mode for heating, and the heating mode is that the airflow generated by the air supply system flows through the first air outlet and the return air duct of the first wind direction switching device in sequence.

[0017] Preferably, in order to simplify the structure and ensure smooth air flow, the first wind direction switching device includes a first pipeline, a second pipeline and the return air pipeline which are connectable to each other, the first pipeline is connected to the first air outlet, the second pipeline is connected to the first end of the dehumidification system, and at least one first switching valve for switching the connection state of the first pipeline, the second pipeline and the return air pipeline is configured;

[0018] The second wind direction switching device includes a third pipeline, a fourth pipeline and the exhaust pipeline that can be connected to each other, the third pipeline is connected to the second end of the dehumidification system, the fourth pipeline is connected to the second air outlet, and at least one second switching valve is configured for the third pipeline, the fourth pipeline and the exhaust pipeline to switch the connection status of the three.

[0019] Specifically, in order to make the structure compact, the first wind direction switching device and the second wind direction switching device both include three ventilation valves, the three ventilation valves include three evenly distributed air ports, and a switching valve for switching the connection state of the three air ports is arranged inside the three ventilation valves. In particular, in order to facilitate the assembly of the switching valve, the three ventilation valves include a symmetrical first valve housing and a second valve housing, and the switching valve is assembled between the first valve housing and the second valve housing through shaft rotation and is driven by a motor.

[0020] Preferably, to facilitate assembly and subsequent maintenance, the dehumidification system includes a channel and a first interface provided at a first end of the channel and a second interface provided at a second end of the channel, the first interface being connected to the second pipeline, and the second interface being connected to the third pipeline; the solid hygroscopic material is placed in the channel and limited by the first interface and the second interface.

[0021] Preferably, in order to achieve automatic control, a first temperature and humidity sensor is configured in the first wind direction switching device, a second temperature and humidity sensor is configured in the second wind direction switching device, and a third temperature and humidity sensor is also configured to detect the temperature and humidity of the indoor space; the first temperature and humidity sensor, the second temperature and humidity sensor and the third temperature and humidity sensor provide signals to the controller for the controller to control the operation of the dehumidification device.

[0022] In order to achieve the above-mentioned purpose, the method for using the dehumidifier of the present invention is characterized in that: the dehumidifier is the dehumidifier of the present invention mentioned above, the air inlet and the return air duct are connected to the indoor room, and the exhaust duct is connected to the outdoor room.

[0023] In order to achieve the above object, the control method of the dehumidification device of the present invention is characterized by:

[0024] The dehumidification device is the dehumidification device of the present invention;

[0025] The air inlet and the return air duct are connected to the room, and the exhaust duct is connected to the outside of the room;

[0026] The first wind direction switching device is provided with a first temperature and humidity sensor, the second wind direction switching device is provided with a second temperature and humidity sensor, and a third temperature and humidity sensor for detecting the temperature and humidity of the indoor space is also provided; the first temperature and humidity sensor, the second temperature and humidity sensor and the third temperature and humidity sensor provide signals to the controller for the controller to control the operation of the dehumidification device;

[0027] The dehumidification and regeneration of the dehumidification device includes the following steps:

[0028] B) performing dehumidification work and continuing for a set time, determining whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor, if the result is yes, repeating step B), if the result is no, executing step C);

[0029] C) Perform regeneration work and continue for a set time to determine whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor. If the result is yes, repeat step C); if the result is no, return to step B).

[0030] Therefore, during operation, automatic switching between the dehumidification mode and the regeneration mode is achieved.

[0031] Preferably, it includes step A): determining whether the moisture content monitored by the third temperature and humidity sensor is greater than a set value, if the result is yes, executing step B), if the result is no, stopping the dehumidification device;

[0032] At any time point during the execution of steps B) and C), step A) is executed once. By executing step A), it can be determined whether dehumidification needs to be continued or no longer needed. If dehumidification needs to be continued, steps B) and C) can be continued. If dehumidification is no longer needed, the dehumidification and regeneration work of the dehumidification device can be automatically stopped.

[0033] In order to automatically start the dehumidification device to perform dehumidification, the dehumidification device is started at any time point in step A), step B) and step C) to perform dehumidification and regeneration.

[0034] The present invention can switch the wind direction to the dehumidification mode or the regeneration mode through the first wind direction switching device and the second wind direction switching device. Therefore, the dehumidification device can work in the dehumidification mode, and the solid hygroscopic material of the dehumidification system absorbs the water vapor in the air to dehumidify the air, and can also work in the regeneration mode to remove the water vapor absorbed by the solid hygroscopic material of the dehumidification system, so that the solid hygroscopic material of the dehumidification system can be reused.

[0035] The present invention connects the first air outlet, the first wind direction switching device, the dehumidification system, the second wind direction switching device, and the second air outlet in series. In the dehumidification mode, the airflow generated by the air supply system flows through the second air outlet, the second wind direction switching device, the dehumidification system, and the return air duct of the first wind direction switching device in sequence. In the regeneration mode, the airflow generated by the air supply system flows through the first air outlet, the first wind direction switching device, the dehumidification system, and the exhaust air duct of the second wind direction switching device in sequence. By changing the flow direction of the airflow, the solid hygroscopic material of the dehumidification system is dehumidified or the solid hygroscopic material of the dehumidification system is regenerated, which simplifies the pipeline configuration, makes the product structure simple, and is easy to install. Moreover, the water vapor separated by dehumidification is evaporated and discharged outdoors through regeneration.

[0036] Furthermore, the first wind direction switching device and the second wind direction switching device are configured to switch the wind direction to a ventilation mode for ventilation and to switch the wind direction to a heating mode for heating, giving the product more functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is an isometric view of the dehumidification device of the present invention;

[0038] Figure 2 It is a schematic diagram of the structure decomposition of the three-ventilation valve of the present invention;

[0039] Figure 3 It is a schematic diagram of the orthographic projection of the three-ventilation valve of the present invention;

[0040] Figure 4 is an axonometric view of a dehumidification system of the present invention;

[0041] Figure 5 It is a schematic diagram of the structural decomposition of the dehumidification system of the present invention;

[0042] Figure 6 is an axonometric view of the air supply system of the present invention;

[0043] Figure 7 for Figure 6 A schematic diagram of the internal structure of the air supply system from another perspective;

[0044] Figure 8 It is a control schematic diagram of the method of the present invention;

[0045] Description of the numbers in the figure:

[0046] 100 air supply system: 101 air inlet, 102 first air outlet, 103 second air outlet, 104 heating module, 105 box, 106 first fan, 107 second fan;

[0047] 200 dehumidification system: 201 solid moisture absorbing material, 202 channel, 203 first interface, 204 second interface;

[0048] 310 first wind direction switching device: 311 first pipeline, 312 second pipeline, 313 return air pipeline;

[0049] 320 second wind direction switching device, 321 third pipeline, 322 fourth pipeline, 323 exhaust pipeline;

[0050] 330 three-ventilation valve, 331 air outlet, 332 switching valve, 333 first valve housing, 334 second valve housing, 335 shaft, 336 motor, 337 spoke plate, 338 air flow channel, 339 arc surface. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present invention.

[0055] The present invention is described in detail below in conjunction with specific embodiments and accompanying drawings.

[0056] like Figure 1 The dehumidification device shown is an embodiment of the technical solution of the present invention. In the following description, the local structure of this embodiment is replaced equivalently, and this embodiment can be evolved into other embodiments.

[0057] Figure 1 The dehumidification device shown includes an air supply system 100, a dehumidification system 200 and a piping system.

[0058] Air supply system 100 Figure 1 , Figure 6-7 As shown, there is an air inlet 101, a first air outlet 102, a second air outlet 103 and a heating module 104, and the heating module 104 is configured to heat the airflow discharged from the first air outlet 102. The heating module 104 is preferably a PTC heater. Specifically, in order to achieve air supply, the air supply system 100 has a box 105 and a first fan 106 and a second fan 107 arranged in the box. The first fan and the second fan are both unidirectional centrifugal fans, and both include a centrifugal wind wheel driven by a motor and rotating in a volute. The air inlet 101, the first air outlet 102 and the second air outlet 103 of the air supply system are all arranged on the side wall of the box, so the air inlet, the first air outlet, and the second air outlet are installed on the top of the room in a horizontal direction, which can occupy a lower height and save space. In specific implementation, the direction of the air inlet, the first air outlet and the second air outlet can be changed according to demand.

[0059] As shown in the air supply system 100, when the first fan 106 is working, the airflow enters the box from the air inlet 101, is sucked in and pressurized by the first fan 106, and then flows out from the first air outlet 102. When the second fan 107 is working, the airflow enters the box from the air inlet 101, is sucked in and pressurized by the second fan 107, and then flows out from the second air outlet 103. In specific implementation, the first fan and the second fan can be replaced by a two-way fan, and the air outlet direction of the two-way fan can be changed by changing the direction of the wind wheel of the two-way fan, such as when the wind wheel rotates clockwise, the air is discharged from the first air outlet, and when the wind wheel rotates counterclockwise, the air is discharged from the second air outlet. The first fan and the second fan can also be replaced by a one-way fan in conjunction with a valve, and the air is discharged to the first air outlet and the second air outlet respectively by switching the valve.

[0060] like Figure 4-5 As shown, the dehumidification system 200 includes a channel 202 and a first interface 203 and a second interface 204 respectively connected to both ends of the channel, and a solid hygroscopic material 201 is placed in the channel 202 and limited by the first interface and the second interface. By disassembling the first interface and / or the second interface, the solid hygroscopic material placed in the channel can be replaced.

[0061] like Figure 1 As shown, the pipeline system includes a first wind direction switching device 310 and a second wind direction switching device 320. The first wind direction switching device and the second wind direction switching device both include Figure 2-3 The three ventilation valves 330 with the same structure as shown and the air ducts used for connection when necessary. The three ventilation valves 330 include three evenly distributed air ports 331, and a switching valve 332 is configured in the three ventilation valves to switch the connection state of the three air ports. Figure 3 As shown, when one air outlet is closed by the switching valve 332, the other two air outlets are connected. In order to reduce wind resistance, the surface of the switching valve used to close the air outlet is an arc surface 339, and the axial ends of the arc surface are connected to the shaft 335 through the spokes 337. The air flow channel 338 is formed between the arc surface 339, the spokes 337 and the shaft 335. In order to facilitate assembly, the three-ventilation valve includes a symmetrical first valve housing 333 and a second valve housing 334. The switching valve 332 is rotatably assembled between the first valve housing and the second valve housing through the shaft 335 and is driven by the motor 336 outside the three-ventilation valve. In order to accurately rotate the switching valve to a specific position, the motor driving the switching valve is preferably a stepping motor. Alternatively, a non-stepping motor is used in conjunction with a position switch.

[0062] The first wind direction switching device 310 includes a first pipeline 311, a second pipeline 312 and a return air pipeline 313 that are interconnected, and the second wind direction switching device 320 includes a third pipeline 321, a fourth pipeline 322 and an exhaust air pipeline 323 that are interconnected. Figure 1 In the figure, the return air duct and the exhaust air duct only show the interfaces of the ducts, and in actual implementation, they also include air ducts. Figure 2-3 The three-way ventilation valve with motor-driven switching valve shown is used to Figure 1 When the first wind direction switching device and the second wind direction switching device are formed, the three air outlets are respectively connected to the first pipeline 311, the second pipeline 312, the return air pipeline 313 and the third pipeline 321, the fourth pipeline 322, and the exhaust air pipeline 323.

[0063] Figure 2-3 The three-way ventilation valve with a switching valve driven by a motor is simple and compact in structure and can switch the connection relationship of three air outlets only through a switching damper. However, in specific implementation, a switching valve can be configured for each air outlet or corresponding pipeline, and by controlling these switching valves, a pipeline can be closed and the other two pipelines can be connected.

[0064] The aforementioned air supply system 100, dehumidification system 200 and piping system are arranged according to Figure 1 As shown, the first air outlet 102, the first pipeline 311 of the first wind direction switching device, the second pipeline 312 of the first wind direction switching device, the first interface 203 of the dehumidification system, the second interface 204 of the dehumidification system, the third pipeline 321 of the second wind direction switching device, the fourth pipeline 322 of the second wind direction switching device, and the second air outlet 103 are connected in sequence. The air inlet 101 and the return air pipeline 313 are connected to the room, and the exhaust air pipeline 323 is connected to the outside. By controlling the connection mode of the first wind direction switching device and the second wind direction switching device, the dehumidification device is operated in the dehumidification mode, the regeneration mode, the ventilation mode or the heating mode.

[0065] In the dehumidification mode, the air supply system 100 sucks in the indoor air, and the generated air flow flows through the second air outlet 103, the second wind direction switching device 320, the dehumidification system 200, and the return air duct 313 of the first wind direction switching device in sequence, and finally flows back to the room. During this period, the humid air is dried by the solid hygroscopic material when flowing through the dehumidification system, thereby circulating the moisture absorption of the indoor air to achieve dehumidification.

[0066] In the regeneration mode, the air supply system 100 sucks in indoor air, and the generated air flow flows through the first air outlet 102, the first wind direction switching device 310, the dehumidification system 200, and the exhaust pipe 323 of the second wind direction switching device in sequence, and is finally discharged to the outside. During this period, the heating module is turned on to heat the air flow, and the heated air flow heats and evaporates the water vapor in the solid hygroscopic material when it flows through the dehumidification system and is finally discharged to the outside.

[0067] In the ventilation mode, the air supply system 100 sucks in indoor air, and the generated airflow flows through the second air outlet 103 and the exhaust duct 323 of the second wind direction switching device in sequence, and exhausts the indoor air to the outside.

[0068] In the heating mode, the air supply system 100 sucks in indoor air, and the generated airflow flows sequentially through the first air outlet 102 and the return air duct 313 of the first wind direction switching device. During this time, the heating module is turned on, and the indoor air is heated by the heating module and flows back into the room, thereby circulating and heating the indoor air to achieve heating.

[0069] Based on the above-mentioned dehumidification device, a first temperature and humidity sensor is configured in the first wind direction switching device, a second temperature and humidity sensor is configured in the second wind direction switching device, and a third temperature and humidity sensor is configured to detect the temperature and humidity of the indoor space; and the first temperature and humidity sensor, the second temperature and humidity sensor and the third temperature and humidity sensor provide signals to the controller for the controller to control the operation of the dehumidification device.

[0070] As mentioned above, the air inlet and return air duct are connected to the room, and the exhaust duct is connected to the outside, so as to realize the indoor dehumidification, ventilation, heating and other functional modes, and regenerate the solid moisture absorbing material. This is reflected in the use method of the dehumidification device.

[0071] In order to realize indoor dehumidification, ventilation, heating and other functional modes, manual switches can be configured for various modes, which can be mechanical or remote control.

[0072] The dehumidification device comprises the following steps for dehumidification and regeneration:

[0073] B) performing dehumidification work and continuing for a set time, determining whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor, if the result is yes, it means that the solid hygroscopic material still has the ability to absorb moisture, and the dehumidification work can be continued, and then repeating step B); if the result is no, it means that the solid hygroscopic material does not have the ability to absorb moisture, and the dehumidification work cannot be continued, and then executing step C);

[0074] C) Perform regeneration work and continue for a set time, determine whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor, if the result is yes, it means that the solid hygroscopic material has not been completely desorbed and regenerated, and the regeneration work needs to be continued, then repeat step C), if the result is no, it means that the solid hygroscopic material has been completely desorbed and regenerated, and the regeneration work is no longer needed, then return to step B).

[0075] In the above steps B) and C), the dehumidification device can be started by a manual switch to start working, and after working for a period of time, the dehumidification device can be stopped by the manual switch.

[0076] In order to realize automatic control, dehumidification and regeneration also include step A): determining whether the moisture content monitored by the third temperature and humidity sensor is greater than the set value, if the result is yes, it means that the ambient humidity of the indoor space exceeds the set value, and dehumidification work needs to be performed, then step B) is performed, if the result is no, it means that the ambient humidity of the indoor space does not exceed the set value, and dehumidification work does not need to be performed, then the dehumidification device is stopped. Moreover, at any time point during the execution of steps B) and C), step A) is executed once to automatically stop the dehumidification device.

[0077] Furthermore, under automatic control, the dehumidification device is started for dehumidification and regeneration at any time point in step A), step B) and step C). That is, when dehumidification and regeneration are performed according to automatic control, the time point for starting the dehumidification device for dehumidification and regeneration can be at any time point in step A), step B) and step C).

[0078] In addition to the illustrated structural form, the aforementioned air supply system can also utilize the ventilation and heating functions of bathroom heaters, central air conditioners and other equipment for dehumidification and regeneration, making the humidity control of indoor spaces more convenient and intelligent.

Claims

1. A dehumidification device with regenerable solid hygroscopic material, comprising an air supply system (100), a dehumidification system (200) and a piping system, wherein: The air supply system (100) comprises an air inlet (101), a first air outlet (102), a second air outlet (103) and a heating module (104), wherein the heating module is configured to heat the airflow discharged from the first air outlet; The dehumidification system (200) comprises a solid moisture absorbing material (201); The pipeline system comprises a first wind direction switching device (310) and a second wind direction switching device (320), the first wind direction switching device (310) having a return air pipeline (313), and the second wind direction switching device (320) having an exhaust air pipeline (323); The first air outlet (102), the first wind direction switching device (310), the dehumidification system (200), the second wind direction switching device (320), and the second air outlet (103) are sequentially connected in series; The first wind direction switching device (310) and the second wind direction switching device (320) are configured to switch the wind direction to a dehumidification mode or a regeneration mode. In the dehumidification mode, the airflow generated by the air supply system (100) flows sequentially through the second air outlet (103), the second wind direction switching device (320), the dehumidification system (200), and the return air duct (313) of the first wind direction switching device (310). In the regeneration mode, the airflow generated by the air supply system (100) flows sequentially through the first air outlet (102), the first wind direction switching device (310), the dehumidification system (200), and the exhaust air duct (323) of the second wind direction switching device (320).

2. The dehumidification device with regenerable solid hygroscopic material according to claim 1 is characterized in that: The first wind direction switching device (310) and the second wind direction switching device (320) are configured to switch the wind direction to a ventilation mode, wherein the ventilation mode is that the airflow generated by the air supply system (100) flows sequentially through the second air outlet (103) and the exhaust duct (323) of the second wind direction switching device (320).

3. The dehumidification device with regenerable solid hygroscopic material according to claim 1 or 2, characterized in that: The first wind direction switching device (310) and the second wind direction switching device (320) are configured to switch the wind direction to a heating mode, wherein the heating mode is a mode in which the airflow generated by the air supply system (100) flows sequentially through the first air outlet (102) and the return air duct (313) of the first wind direction switching device.

4. The dehumidification device with regenerable solid hygroscopic material according to claim 1 is characterized in that: The first wind direction switching device (310) comprises a first pipeline (311), a second pipeline (312) and the return air pipeline (313) which are communicable with each other, the first pipeline (311) being connected to the first air outlet (102), the second pipeline (312) being connected to the first end of the dehumidification system (200), and at least one first switching valve for switching the connection state of the first pipeline, the second pipeline and the return air pipeline being configured; The second wind direction switching device (320) comprises a third pipeline (321), a fourth pipeline (322) and the exhaust pipeline (323) which are connectable to each other, the third pipeline (321) being connected to the second end of the dehumidification system (200), the fourth pipeline (322) being connected to the second air outlet (103), and at least one second switching valve for switching the connection state of the third pipeline, the fourth pipeline and the exhaust pipeline being configured.

5. The dehumidification device with regenerable solid hygroscopic material according to claim 4 is characterized in that: The first wind direction switching device (310) and the second wind direction switching device (320) both comprise a three-ventilation valve (330), wherein the three-ventilation valve (330) comprises three evenly distributed air outlets (331), and a switching valve (332) is arranged inside the three-ventilation valve for switching the connection state of the three air outlets.

6. The dehumidification device with regenerable solid hygroscopic material according to claim 5, characterized in that: The three-ventilation valve (330) comprises a symmetrical first valve housing (333) and a second valve housing (334); the switching valve (332) is rotatably assembled between the first valve housing and the second valve housing via a shaft (335) and is driven by a motor (336).

7. The dehumidification device with regenerable solid hygroscopic material according to claim 4 is characterized in that: The dehumidification system (200) comprises a channel (202), a first interface (203) provided at a first end of the channel, and a second interface (204) provided at a second end of the channel, the first interface (203) being connected to the second pipeline (312), and the second interface (204) being connected to the third pipeline (321); the solid hygroscopic material (201) is placed in the channel (202) and is limited by the first interface (203) and the second interface (204).

8. The dehumidification device with regenerable solid hygroscopic material according to claim 1 is characterized in that: A first temperature and humidity sensor is configured in the first wind direction switching device, a second temperature and humidity sensor is configured in the second wind direction switching device, and a third temperature and humidity sensor is also configured to detect the temperature and humidity of the indoor space; the first temperature and humidity sensor, the second temperature and humidity sensor and the third temperature and humidity sensor provide signals to the controller for the controller to control the operation of the dehumidification device.

9. A method for using a dehumidification device, characterized in that: The dehumidification device is a dehumidification device according to any one of claims 1 to 7, wherein the air inlet and the return air duct are connected to the indoor room, and the exhaust air duct is connected to the outdoor room.

10. A method for controlling a dehumidification device, characterized in that: The dehumidification device is a dehumidification device according to any one of claims 1 to 7; The air inlet and the return air duct are connected to the room, and the exhaust air duct is connected to the outside; The first wind direction switching device is provided with a first temperature and humidity sensor, the second wind direction switching device is provided with a second temperature and humidity sensor, and a third temperature and humidity sensor for detecting the temperature and humidity of the indoor space is also provided; the first temperature and humidity sensor, the second temperature and humidity sensor and the third temperature and humidity sensor provide signals to the controller for the controller to control the operation of the dehumidification device; The dehumidification and regeneration of the dehumidification device includes the following steps: B) performing dehumidification work and continuing for a set time, determining whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor, if the result is yes, repeating step B), if the result is no, executing step C); C) Perform regeneration work and continue for a set time to determine whether the moisture content monitored by the first temperature and humidity sensor is less than the moisture content monitored by the second temperature and humidity sensor. If the result is yes, repeat step C); if the result is no, return to step B).

11. The control method of the dehumidification device according to claim 10, characterized in that: The method comprises the steps of: determining whether the moisture content monitored by the third temperature and humidity sensor is greater than a set value, if the result is yes, executing the step of B), if the result is no, stopping the dehumidification device; At any time point during the execution of steps B) and C), execute step A) once.

12. The control method of the dehumidification device according to claim 10 or 11, characterized in that: At any time point in step A), step B) and step C), the dehumidification device is started to perform dehumidification and regeneration.

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