Rotary wheel dehumidification system

Abstract

The invention discloses a rotating wheel dehumidification system, and belongs to the technical field of dehumidification equipment. The rotating wheel dehumidification system comprises a dehumidification channel, the dehumidification channel comprises a first filter, a processing area, a temperature control part and a second filter which are sequentially arranged in the flowing direction of fresh air, the dehumidification channel further comprises a first fan used for driving the fresh air to flow, and an outlet of the dehumidification channel communicates with the indoor space; the regeneration passage comprises a third filter, a first surface air cooler, a first heater and a regeneration area which are sequentially arranged in the flow direction of the regenerated fresh air, and the regeneration passage further comprises a fan unit used for driving the regenerated fresh air to flow; and the dehumidification rotating wheel at least comprises the treatment area and the regeneration area. Through the structural design that the first surface air cooler is additionally arranged in the regeneration passage, pre-dehumidification treatment on regenerated fresh air is achieved, energy consumption of the first heater is reduced, the energy efficiency ratio of the rotary wheel dehumidification system is increased, the dehumidification capacity of the dehumidification rotary wheel is improved, and the dehumidification efficiency of the whole rotary wheel dehumidification system is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of dehumidification equipment, and in particular, relates to a rotary dehumidification system. Background Art

[0002] The rotary dehumidification system mainly uses the hygroscopic material on the rotary wheel to absorb the moisture in the air entering the treatment area, and at the same time, in the regeneration area, the hygroscopic material desorbs the moisture by heating the air to achieve the regeneration of the dehumidification material. However, the traditional rotary dehumidification system generally has the problems of high energy consumption and low dehumidification efficiency in practical applications. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a rotary dehumidification system, which reduces the energy consumption of the first heater, improves the dehumidification capacity of the dehumidification wheel, and improves the energy efficiency ratio and dehumidification efficiency of the rotary dehumidification system.

[0004] In a first aspect, the present application provides a rotary dehumidification system, comprising:

[0005] A dehumidification passage, comprising a first filter, a processing area, a temperature control element and a second filter arranged in sequence along the flow direction of fresh air, the dehumidification passage also comprising a first fan for driving the flow of fresh air, and an outlet of the dehumidification passage is communicated with the room;

[0006] A regeneration passage, comprising a third filter, a first surface cooler, a first heater and a regeneration zone arranged in sequence along the flow direction of the regeneration fresh air, and the regeneration passage also comprises a fan unit for driving the flow of the regeneration fresh air;

[0007] The dehumidification wheel at least comprises the treatment zone and the regeneration zone.

[0008] According to the rotary dehumidification system of the present application, through the structural design of adding the first surface cooler in the regeneration passage, pre-dehumidification treatment of the regenerated fresh air is achieved, reducing the energy consumption of the first heater for eliminating the wet load of the regenerated fresh air, thereby improving the energy efficiency ratio of the entire rotary dehumidification system, and at the same time providing the regeneration zone with drier regenerated fresh air, increasing the humidity difference between the regenerated fresh air and the regeneration zone, so that the regenerated fresh air desorbs more moisture from the dehumidification wheel in the regeneration zone, thereby improving the dehumidification capacity of the dehumidification wheel after entering the treatment zone, and then greatly improving the dehumidification efficiency of the entire rotary dehumidification system.

[0009] According to one embodiment of the present application, the rotary dehumidification system further includes:

[0010] A heat exchanger having a first path and a second path for mutually exchanging heat and connected to the regeneration path, the first path of the heat exchanger being connected between the first surface cooler and the first heater, and the second path of the heat exchanger being connected to the outlet of the regeneration zone.

[0011] According to one embodiment of the present application, the dehumidification wheel further includes a waste heat recovery zone located between the treatment zone and the regeneration zone, the end surface of the dehumidification wheel is a circular surface, and the treatment zone, the regeneration zone and the waste heat recovery zone each occupy a sector surface of a partial proportion of the circular surface; the wheel dehumidification system further includes:

[0012] A first branch passage, wherein an inlet of the first branch passage is connected to the dehumidification passage, and an outlet of the first branch passage is connected to an inlet of the waste heat recovery area.

[0013] According to one embodiment of the present application, the dehumidification wheel further includes a fan-shaped preheating zone located between the treatment zone and the regeneration zone, and the preheating zone and the waste heat recovery zone are respectively located on both sides of the treatment zone, and the treatment zone, the waste heat recovery zone, the regeneration zone and the preheating zone constitute the end surface of the dehumidification wheel; the wheel dehumidification system further includes:

[0014] The inlet of the second branch passage is connected to the outlet of the waste heat recovery zone, the outlet of the second branch passage is connected to the inlet of the preheating zone, and the outlet of the preheating zone is connected to the outdoors.

[0015] According to one embodiment of the present application, the rotary dehumidification system further includes:

[0016] A return air passage is connected between the room and the dehumidification passage, and the connection between the return air passage and the dehumidification passage is located between the first filter and the processing area.

[0017] According to one embodiment of the present application, the dehumidification passage further includes:

[0018] A second surface cooler is provided between the first filter and the processing area, and a connection point between the return air passage and the dehumidification passage is located between the second surface cooler and the processing area.

[0019] According to one embodiment of the present application, the dehumidification passage further includes:

[0020] The third surface cooler is arranged between the second surface cooler and the processing area, and the connection between the return air passage and the dehumidification passage is located between the second surface cooler and the third surface cooler.

[0021] According to one embodiment of the present application, the temperature control component further includes:

[0022] A fourth condenser and a second heater are configured to be processed to a target operating state according to an indoor demand temperature.

[0023] According to one embodiment of the present application, the first filter and the third filter are primary efficiency filters, and the second filter is a medium efficiency filter.

[0024] According to one embodiment of the present application, the first fan is disposed between the processing area and the temperature control component.

[0025] According to one embodiment of the present application, when the rotary dehumidification system includes a heat exchanger, the fan unit includes:

[0026] a second fan, the second fan being disposed between the heater and the regeneration zone;

[0027] A third fan is arranged at the outlet of the heat exchanger.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic structural diagram of a rotary dehumidification system provided in an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the structure of the dehumidification wheel provided in an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the structure of the dehumidification wheel, dehumidification passage, regeneration passage, first branch passage and second branch passage provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] Rotary dehumidification system 10;

[0035] Dehumidification passage 11, first filter 111, second cooler 112, third cooler 113, first fan 114, temperature control element 115, fourth cooler 1151, second heater 1152, second filter 116;

[0036] Regeneration passage 12, third filter 121, first surface cooler 122, first heater 123, second fan 124, third fan 125;

[0037] Dehumidification wheel 13, treatment zone 131, preheating zone 132, regeneration zone 133, waste heat recovery zone 134;

[0038] Heat exchanger 14, first path 141, second path 142;

[0039] A first branch passage 15 , a second branch passage 16 , and a return air passage 17 . DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] The present application provides a rotary dehumidification system 10 .

[0042] The rotary dehumidification system 10 can be applied to high-quality indoor environments, such as industrial plants, laboratories, or precision instrument and equipment production workshops.

[0043] Reference below Figure 1-Figure 3 A rotary dehumidification system 10 according to an embodiment of the present application is described.

[0044] In some embodiments, Figure 1 As shown, the rotary dehumidification system 10 includes a dehumidification passage 11 , a regeneration passage 12 and a dehumidification rotary wheel 13 .

[0045] like Figure 1-Figure 3 As shown, the dehumidification passage 11 includes a first filter 111, a processing area 131, a temperature control element 115 and a second filter 116 arranged in sequence along the flow direction of the fresh air. The dehumidification passage 11 also includes a first fan 114 for driving the flow of fresh air. The outlet of the dehumidification passage 11 is connected to the indoor room.

[0046] Among them, the first filter 111 can be arranged close to the inlet of the dehumidification passage 11, and its main function is to filter out large particles in the fresh air that has just entered the dehumidification passage 11, such as dust, hair, etc., to protect subsequent processing components from damage and improve the air quality at the same time; the processing area 131 is the area where the dehumidification wheel 13 contacts the fresh air in the dehumidification passage 11, and the dehumidification wheel 13 absorbs moisture in the fresh air in the processing area 131; the temperature control element 115 is used to adjust the temperature of the fresh air after passing through the processing area 131 to meet the specific requirements of the indoor environment; the second filter 116 is used to further filter out tiny particles in the fresh air to improve the quality of air delivered to the room.

[0047] like Figure 1-Figure 3 As shown, the regeneration passage 12 includes a third filter 121, a first surface cooler 122, a first heater 123 and a regeneration zone 133 arranged in sequence along the flow direction of the regeneration fresh air, and the regeneration passage 12 also includes a fan unit for driving the regeneration fresh air to flow.

[0048] The regeneration passage 12 and the dehumidification passage 11 are independently arranged and are not connected to each other. The third filter 121 can be arranged near the inlet of the regeneration passage 12 to filter large particles in the regeneration fresh air; the first surface cooler 122 is used to perform preliminary dehumidification treatment on the regeneration fresh air; the first heater 123 is used to heat the regeneration fresh air after preliminary dehumidification to provide sufficient heat to complete the subsequent regeneration process; the regeneration area 133 is the area where the dehumidification rotor 13 contacts the regeneration fresh air, and the rotor releases the moisture absorbed before in the regeneration area 133 to complete the regeneration cycle.

[0049] The first surface cooler 122 may be a direct evaporative cooling device or other devices, which are not limited herein.

[0050] The dehumidification wheel 13 at least includes a treatment zone 131 and a regeneration zone 133 .

[0051] The dehumidification wheel 13 is the core component of the entire rotary dehumidification system 10. The dehumidification wheel 13 can be made of a hygroscopic material, such as silica gel, lithium chloride, etc. The dehumidification wheel 13 can absorb moisture when fresh air passes through, and desorb moisture when regenerated fresh air passes through. The dehumidification wheel 13 rotates continuously, alternately switching between the treatment area 131 and the regeneration area 133 to achieve continuous dehumidification and regeneration.

[0052] In actual implementation, Figure 1 and Figure 3As shown, the fresh air is powered by the first fan 114 and enters the dehumidification passage 11. The fresh air sucked in from the inlet of the dehumidification passage 11 first passes through the first filter 111 for preliminary filtration and then enters the processing area 131 of the dehumidification wheel 13. After the adsorption and dehumidification treatment of the dehumidification wheel 13, it becomes dry fresh air and then enters the temperature control element 115. At this time, the temperature control element 115 adjusts the dry fresh air to the target temperature according to the specific requirements of the indoor environment. Then the dry fresh air is further filtered through the second filter 116 and then sent into the room. The regenerated fresh air is powered by the fan unit and enters the regeneration passage 12. The regenerated fresh air sucked in from the inlet of the regeneration passage 12 is first filtered by the third filter 121 and then enters the first surface cooler 122. The regenerated fresh air is cooled down by the first surface cooler 122. At this time, the water vapor in the regenerated fresh air gradually condenses and reaches a saturated state. When the dew point of the regenerated fresh air continues to decrease, the water vapor in the regenerated fresh air becomes condensed water and precipitates. The regenerated fresh air after pre-dehumidification is heated to the set temperature by the first heater 123 and then enters the regeneration zone 133 of the dehumidification wheel 13. The high-temperature regenerated fresh air desorbs and regenerates the dehumidification wheel 13. After the dehumidification capacity of the dehumidification wheel 13 is restored, the high-temperature and high-humidity regenerated fresh air is powered by the fan unit and discharged to the outdoors through the outlet of the regeneration passage 12.

[0053] The rotary dehumidification system 10 provided in the embodiment of the present application realizes pre-dehumidification treatment of the regenerated fresh air through the structural design of adding the first surface cooler 122 in the regeneration passage 12 as mentioned above, reduces the energy consumption of the first heater 123 for eliminating the wet load of the regenerated fresh air, thereby improving the energy efficiency ratio of the entire rotary dehumidification system 10, and at the same time provides drier regenerated fresh air for the regeneration zone 133, increasing the humidity difference between the regenerated fresh air and the regeneration zone 133, so that the regenerated fresh air desorbs more moisture from the dehumidification wheel 13 in the regeneration zone 133, thereby improving the dehumidification capacity of the dehumidification wheel 13 after entering the treatment zone 131, and then greatly improving the dehumidification efficiency of the entire rotary dehumidification system 10.

[0054] In some embodiments, Figure 1 As shown, the rotary dehumidification system 10 further includes a heat exchanger 14 .

[0055] like Figure 1 and Figure 3 As shown, the heat exchanger 14 has a first path 141 and a second path 142 that exchange heat with each other and are connected to the regeneration path 12. The first path 141 of the heat exchanger 14 is connected between the first surface cooler 122 and the first heater 123, and the second path 142 of the heat exchanger 14 is connected at the outlet of the regeneration zone 133.

[0056] The heat exchanger 14 may be a heat pipe heat exchanger or other types of heat exchangers, which are not limited herein.

[0057] It is understandable that if Figure 1 and Figure 3 As shown, based on the first path 141 of the heat exchanger 14 being connected between the first surface cooler 122 and the first heater 123, the first path 141 of the heat exchanger 14 is used to circulate the regeneration fresh air that has not yet entered the first heater 123, and the temperature of the regeneration fresh air is relatively low at this time; based on the second path 142 of the heat exchanger 14 being connected to the outlet of the regeneration zone 133, the second path 142 of the heat exchanger 14 is used to circulate the regeneration fresh air that has left the regeneration zone 133, and the regeneration fresh air desorbs the moisture on the dehumidification wheel 13 in the regeneration zone 133, and the regeneration fresh air leaving the regeneration zone 133 still maintains a relatively high temperature. In this case, the heat exchanger 14 works according to the heat exchange principle, that is, the relatively low-temperature regeneration fresh air in the first path 141 of the heat exchanger 14 absorbs the heat of the relatively high-temperature regeneration fresh air in the second path 142 of the heat exchanger 14, and the regeneration fresh air in the second path 142 of the heat exchanger 14 releases the heat. In this way, the heat exchanger 14 realizes heat recovery of the regenerated fresh air after leaving the regeneration zone 133. Specifically, the regenerated fresh air after leaving the regeneration zone 133 transfers the heat it carries to the fresh air that is about to enter the regeneration zone 133, thereby preheating the fresh air that is about to enter the regeneration zone 133, thereby reducing the energy consumption generated by the first heater 123 for increasing the temperature of the regenerated fresh air.

[0058] The rotary dehumidification system 10 provided in the embodiment of the present application, through the configuration of the above-mentioned heat exchanger 14, enables the rotary dehumidification system 10 to recover the heat of the regenerated fresh air after leaving the regeneration zone 133, and to preheat the regenerated fresh air that is about to enter the first heater 123, thereby reducing the energy consumption of the first heater 123, thereby improving the energy utilization rate of the rotary dehumidification system 10 and reducing dependence on external energy.

[0059] In some embodiments, Figure 2 and Figure 3 As shown, the dehumidification wheel 13 also includes a waste heat recovery zone 134 located between the treatment zone 131 and the regeneration zone 133. The end face of the dehumidification wheel 13 is a circular surface. The treatment zone 131, the regeneration zone 133 and the waste heat recovery zone 134 each occupy a sector-shaped surface that accounts for a partial proportion of the circular surface. The wheel dehumidification system 10 also includes: a first branch passage 15.

[0060] like Figure 3 As shown, the inlet of the first branch passage 15 is connected to the dehumidification passage 11 , and the outlet of the first branch passage 15 is connected to the inlet of the waste heat recovery area 134 .

[0061] It is understandable that in order to further improve the energy utilization rate of the entire rotary dehumidification system 10, the structure of the dehumidification rotary wheel 13 is optimized on the basis of the processing area 131 and the regeneration area 133. Specifically, on the basis of maintaining the normal processing air volume of the processing area 131 and the regeneration area 133, a waste heat recovery area 134 is added. The waste heat recovery area 134 is located between the processing area 131 and the regeneration area 133, and the first branch passage 15 is used to connect the dehumidification passage 11 and the waste heat recovery area 134, so as to divert a part of the fresh air that has not yet entered the processing area 131 to the waste heat recovery area 134. Among them, the processing area 131, the regeneration area 133 and the waste heat recovery area 134 are all fan-shaped. Figure 2 During the rotation in the central direction, the dehumidification wheel 13 will contact the regeneration area 133, the waste heat recovery area 134 and the treatment area 131 in sequence, thereby being connected with the regeneration passage 12, the first branch passage 15 and the dehumidification passage 11 in sequence.

[0062] In some embodiments, Figure 2 As shown, the treatment zone 131, the regeneration zone 133 and the waste heat recovery zone 134 may constitute a part of the end surface of the dehumidification wheel 13. In other embodiments, the treatment zone 131, the regeneration zone 133 and the waste heat recovery zone 134 may constitute the entire end surface of the dehumidification wheel 13.

[0063] In actual implementation, Figure 3 As shown, after the dehumidification wheel 13 rotates to the regeneration zone 133, the high-temperature regenerated fresh air in the regeneration passage 12 is passed into the regeneration zone 133. After the high-temperature dried regenerated fresh air desorbs moisture, the dehumidification wheel 13 becomes a high-temperature dried dehumidification wheel 13 and rotates to the waste heat recovery zone 134. After the high-temperature dried dehumidification wheel 13 rotates to the waste heat recovery zone 134, the low-temperature fresh air in the first branch passage 15 is passed into the waste heat recovery zone 134. The low-temperature fresh air exchanges heat with the high-temperature dried dehumidification wheel 13 to recover the heat of the dehumidification wheel 13, thereby achieving a pre-cooling operation of the dehumidification wheel 13 before entering the processing zone 131. The pre-cooled dehumidification wheel 13 can then be rotated to the processing zone 131 to process the fresh air from the dehumidification passage 11, so that the fresh air after dehumidification will not produce excessive temperature rise.

[0064] It should be noted that, in actual design, the amount of air diverted to the first branch passage 15 can be adjusted by adding a control valve or changing the pipe diameter of the first branch passage 15 .

[0065] The rotary dehumidification system 10 provided in the embodiment of the present application, through the setting of the above-mentioned waste heat recovery area 134 and the first branch passage 15, the first branch passage 15 guides part of the fresh air in the dehumidification passage 11 to the waste heat recovery area 134, thereby realizing pre-cooling treatment of the regenerated high-temperature dehumidification wheel 13, effectively reducing the temperature rise of the fresh air after dehumidification in the treatment area 131, reducing the energy consumption of the temperature control component 115, thereby improving the energy utilization efficiency of the entire rotary dehumidification system 10.

[0066] In some embodiments, Figure 2 and Figure 3 As shown, the dehumidification wheel 13 also includes a fan-shaped preheating zone 132 located between the treatment zone 131 and the regeneration zone 133, and the preheating zone 132 and the waste heat recovery zone 134 are respectively located on both sides of the treatment zone 131, and the treatment zone 131, the waste heat recovery zone 134, the regeneration zone 133 and the preheating zone 132 constitute the end face of the dehumidification wheel 13; the wheel dehumidification system 10 also includes: a second branch passage 16.

[0067] like Figure 3 As shown, the inlet of the second branch passage 16 is connected to the outlet of the waste heat recovery zone 134, the outlet of the second branch passage 16 is connected to the inlet of the preheating zone 132, and the outlet of the preheating zone 132 is connected to the outdoors.

[0068] It can be understood that in order to further improve the energy utilization rate of the entire rotary dehumidification system 10, the structure of the dehumidification rotary wheel 13 is optimized on the basis of the processing zone 131, the regeneration zone 133 and the waste heat recovery zone 134. Specifically, on the basis of maintaining the normal processing air volume of the processing zone 131, the regeneration zone 133 and the waste heat recovery zone 134, a preheating zone 132 is added. The preheating zone 132 is located between the processing zone 131 and the regeneration zone 133, and the waste heat recovery zone 134, and the second branch passage 16 is used to connect the waste heat recovery zone 134 and the preheating zone 132, so as to guide the high-temperature fresh air leaving the waste heat recovery zone 134 to the preheating zone 132. Among them, the processing zone 131, the regeneration zone 133, the waste heat recovery zone 134 and the preheating zone 132 are all fan-shaped. Figure 2 During the rotation in the central direction, the dehumidification wheel 13 will contact the treatment area 131, the preheating area 132, the regeneration area 133 and the waste heat recovery area 134 in turn, thereby being connected with the dehumidification passage 11, the second branch passage 16, the regeneration passage 12 and the first branch passage 15 in turn.

[0069] The central angles of the sectors of the treatment zone 131, the regeneration zone 133, the waste heat recovery zone 134 and the preheating zone 132 are not limited to Figure 2In the form shown in the figure, the central angles of the sectors of the processing zone 131, the regeneration zone 133, the waste heat recovery zone 134 and the preheating zone 132 can be adjusted according to the range of the processing air volume and the state parameters of the processed air, and the present application does not limit this.

[0070] In actual implementation, Figure 3 As shown, after the dehumidification wheel 13 rotates to the regeneration zone 133, the high-temperature regenerated fresh air in the regeneration passage 12 is passed into the regeneration zone 133. After the high-temperature dried regenerated fresh air desorbs moisture, the dehumidification wheel 13 becomes a high-temperature dried dehumidification wheel 13 and rotates to the waste heat recovery zone 134. After the high-temperature dried dehumidification wheel 13 rotates to the waste heat recovery zone 134, the low-temperature fresh air in the first branch passage 15 is passed into the waste heat recovery zone 134. The low-temperature fresh air exchanges heat with the high-temperature dried dehumidification wheel 13 to recover the heat of the dehumidification wheel 13, thereby achieving a pre-cooling operation of the dehumidification wheel 13 before entering the processing zone 131. The pre-cooled dehumidification wheel 13 can then be rotated to the processing zone 131 to process the fresh air from the dehumidification passage 11, so that the fresh air after dehumidification will not produce excessive temperature rise. After the dehumidification wheel 13 completes the moisture absorption work in the treatment area 131, it enters the preheating area 132. At this time, the fresh air in the first branch passage 15 absorbs the heat of the dehumidification wheel 13 in the above-mentioned waste heat recovery area 134, and becomes high-temperature fresh air and enters the second branch passage 16. The high-temperature fresh air in the second branch passage 16 enters the preheating area 132, and the high-temperature fresh air exchanges heat with the low-temperature and humidified dehumidification wheel 13, thereby achieving the preheating operation of the dehumidification wheel 13 before entering the regeneration area 133. After the preheating dehumidification wheel 13, the high-temperature fresh air becomes low-temperature fresh air and then enters the waste heat recovery area 134 to realize internal circulation. The preheated dehumidification wheel 13 enters the regeneration area 133 and is again desorbed by the regenerated fresh air at high temperature.

[0071] It should be noted that, in actual design, the amount of air diverted to the second branch passage 16 can be adjusted by adding a control valve or changing the pipe diameter of the second branch passage 16 .

[0072] The rotary dehumidification system 10 provided in the embodiment of the present application, through the arrangement of the above-mentioned preheating zone 132 and the second branch passage 16, the high-temperature fresh air that absorbs heat and heats up in the waste heat recovery zone 134 is used to preheat the dehumidification wheel 13 that is about to enter the regeneration zone 133, thereby reducing the energy consumption of the first heater 123, and can also reduce the moisture content of the dehumidification wheel 13 rotated to the regeneration zone 133. Under the same regeneration conditions, more water on the dehumidification wheel 13 rotated to the regeneration zone 133 is desorbed, thereby improving the dehumidification capacity of the dehumidification wheel 13. In addition, the synergistic effect of the preheating zone 132 and the waste heat recovery zone 134 forms a closed-loop heat exchange system, and the part of the fresh air that is diverted continuously exchanges heat with the dehumidification wheel 13 during the flow process, thereby realizing effective transfer and utilization of heat.

[0073] In some embodiments, Figure 1 As shown, the rotary dehumidification system 10 also includes: a return air passage 17.

[0074] like Figure 1 and Figure 3 As shown, the return air passage 17 is connected between the indoor room and the dehumidification passage 11 , and the connection between the return air passage 17 and the dehumidification passage 11 is located between the first filter 111 and the processing area 131 .

[0075] In this embodiment, if Figure 1 and Figure 3 As shown, the fresh air dehumidified in the processing area 131 is sent into the indoor environment after passing through the temperature control element 115 and the second filter 116, and part of the indoor air flows back to the dehumidification passage 11 through the return air passage 17. This part of the indoor air is mixed with the fresh air drawn from the outside, and the mixed fresh air enters the processing area 131 for dehumidification treatment.

[0076] It should be noted that the rotary dehumidification system 10 can adjust the ratio of fresh air to return air according to the change of indoor and outdoor humidity, and enhance the adaptability of the rotary dehumidification system 10 to different environmental conditions. In actual design, the return air volume can be adjusted by adding a control valve or changing the diameter of the return air passage 17.

[0077] The rotary dehumidification system 10 provided in the embodiment of the present application can utilize the existing low-humidity air in the room and reduce the wet load of the fresh air through the setting of the above-mentioned return air passage 17, thereby reducing the energy consumption of the entire rotary dehumidification system 10. At the same time, the introduction of return air helps to maintain the circulation and renewal of indoor air and reduce the accumulation of indoor pollutants.

[0078] In some embodiments, Figure 1 As shown, the dehumidification passage 11 further includes: a second surface cooler 112 .

[0079] like Figure 1 and Figure 3 As shown, the second surface cooler 112 is disposed between the first filter 111 and the processing area 131 , and the connection between the return air passage 17 and the dehumidification passage 11 is located between the second surface cooler 112 and the processing area 131 .

[0080] The second surface cooler 112 may be a direct evaporative cooling device or other devices, which are not limited herein.

[0081] In actual implementation, Figure 1 and Figure 3As shown, the second cooler 112 is arranged between the first filter 111 and the processing area 131. Therefore, the fresh air first passes through the first filter 111 for preliminary filtration and then enters the second cooler 112. The fresh air is cooled down under the action of the second cooler 112. At this time, the water vapor in the fresh air gradually condenses and reaches a saturated state. When the dew point of the fresh air continues to decrease, the water vapor in the fresh air becomes condensed water and precipitates. The indoor return air is mixed with the pre-dehumidified fresh air before entering the processing area 131, thereby reducing the humidity within the unit air volume.

[0082] The rotary dehumidification system 10 provided in the embodiment of the present application realizes pre-dehumidification treatment of fresh air through the setting of the above-mentioned second surface cooler 112, and combines the mutual mixing of indoor return air and fresh air after pre-dehumidification, thereby reducing the humidity within the unit air volume and the wet load of the dehumidification fan, thereby reducing the heating energy consumption of the first heater 123 during regeneration, thereby improving the energy efficiency ratio of the entire rotary dehumidification system 10.

[0083] In some embodiments, Figure 1 As shown, the dehumidification passage 11 further includes a third surface cooler 113 .

[0084] like Figure 1 and Figure 3 As shown, the third surface cooler 113 is disposed between the second surface cooler 112 and the processing area 131 , and the connection between the return air passage 17 and the dehumidification passage 11 is located between the second surface cooler 112 and the third surface cooler 113 .

[0085] The third surface cooler 113 may be a direct evaporative cooling device or other devices, which is not limited here.

[0086] In actual implementation, Figure 1 and Figure 3 As shown, the second cooler 112 is arranged between the first filter 111 and the processing area 131, and the third cooler 113 is arranged between the second cooler 112 and the processing area 131. Therefore, the fresh air first passes through the first filter 111 for preliminary filtration, and then enters the second cooler 112 for cooling and pre-dehumidification. Then, the indoor return air is mixed with the low-temperature fresh air after pre-dehumidification, and the mixed fresh air enters the third cooler 113 for cooling. The low-temperature fresh air is then sent to the processing area 131 for large-scale adsorption dehumidification treatment.

[0087] The rotary dehumidification system 10 provided in the embodiment of the present application, through the setting of the above-mentioned third surface cooler 113, combined with the setting of the second surface cooler 112, the second surface cooler 112 performs preliminary cooling and pre-dehumidification on the fresh air after preliminary filtration, and the third surface cooler 113 cools the mixed indoor return air and fresh air, so that the temperature of the fresh air before entering the processing area 131 meets the optimal operating temperature range of dehumidification of the dehumidification wheel 13, thereby ensuring the optimal dehumidification performance of the entire rotary dehumidification system 10.

[0088] In some embodiments, Figure 1 As shown, the temperature control component 115 further includes: a fourth cooler 1151 and a second heater 1152 .

[0089] The fourth cooler 1151 and the second heater 1152 are configured to be processed to a target operating state according to the indoor demand temperature.

[0090] In actual implementation, if the indoor environment requires cooling, the actual temperature of the fresh air leaving the treatment area 131 is greater than the indoor required temperature. At this time, the fourth cooler 1151 is in the on state, and the second heater 1152 is in the off state. The fourth cooler 1151 cools the supply air until the supply air temperature drops to the indoor required temperature, and then the cold air is sent into the room after secondary filtration by the second filter 116; if the indoor environment requires heating, the actual temperature of the supply air leaving the treatment area 131 is lower than the indoor required temperature. At this time, the fourth cooler 1151 is in the off state, and the second heater 1152 is in the on state. The second heater 1152 heats the supply air until the supply air temperature rises to the indoor required temperature, and then the warm air is sent into the room after secondary filtration by the second filter 116.

[0091] The rotary dehumidification system 10 provided in the embodiment of the present application, through the configuration of the above-mentioned fourth surface cooler 1151 and the second heater 1152, the rotary dehumidification system 10 can more accurately control the temperature of the air delivered to the room to meet different indoor temperature requirements, and at the same time can switch the working states of the fourth surface cooler 1151 and the second heater 1152 according to actual needs, thereby avoiding unnecessary energy consumption and improving the energy efficiency of the rotary dehumidification system 10.

[0092] In some embodiments, the first filter 111 and the third filter 121 are primary filters, and the second filter 116 is a medium filter.

[0093] It should be noted that primary filters are mainly used to filter large particles of impurities and dust in the air. Specifically, primary filters are usually made of coarser filter materials, such as non-woven fabrics, metal mesh or plastic mesh, which can effectively intercept particles larger than 5 microns.

[0094] The medium-efficiency filter is used to further filter the fresh air after passing through the primary-efficiency filter and intercept smaller particles, such as particles larger than 1 micron and bacteria. Specifically, the medium-efficiency filter is usually made of glass fiber, polyester fiber or other synthetic materials, providing higher filtration efficiency than the primary-efficiency filter.

[0095] Considering that fresh air needs to be delivered indoors, a first filter 111 and a second filter 116 are successively provided in the dehumidification passage 11. Based on the fact that the first filter 111 is a primary filter and the second filter 116 is a medium filter, the fresh air is subjected to coarse filtration and fine filtration before being delivered indoors, so that the rotary dehumidification system 10 can provide cleaner air and meet the higher air quality requirements of the indoor environment. Considering that the regenerated fresh air is discharged outdoors, only a third filter 121 is provided in the regeneration passage 12. Based on the fact that the third filter 121 is a primary filter, the regenerated fresh air does not seriously wear or clog the dehumidification wheel 13 and the fan unit, thereby achieving cost control.

[0096] In some embodiments, Figure 1 As shown, the first fan 114 is disposed between the processing area 131 and the temperature control component 115 .

[0097] Among them, the specific selection of the first fan 114 can be determined according to the processing capacity of the dehumidification wheel 13 and the indoor environment requirements, such as forward multi-wing type, backward curved blades, etc., which is not limited in this application.

[0098] It can be understood that the first fan 114 is arranged between the processing area 131 and the temperature control element 115. On the one hand, the fresh air passes through the processing area 131 for adsorption and dehumidification before entering the first fan 114, so that the fresh air entering the first fan 114 is kept as dry as possible, thereby reducing the corrosion of the fresh air to the first fan 114, thereby extending the service life of the first fan 114. On the other hand, the fresh air can obtain sufficient power after passing through the processing area 131 to overcome the resistance in the subsequent temperature control element 115, the second filter 116 and the pipeline, thereby achieving more uniform and efficient fresh air flow.

[0099] In some embodiments, Figure 1 As shown, when the rotary dehumidification system 10 includes a heat exchanger 14 , the fan unit includes: a second fan 124 and a third fan 125 .

[0100] The second fan 124 is disposed between the heater and the regeneration zone 133 ; the third fan 125 is disposed at the outlet of the heat exchanger 14 .

[0101] Among them, the specific selection of the second fan 124 and the third fan 125 can be determined according to the actual air volume demand and the pipeline resistance of the regeneration passage 12, such as forward multi-wing type, backward curved blades, etc., which is not limited in this application.

[0102] It can be understood that the provision of the second fan 124 and the third fan 125 improves the smoothness of the flow of the regenerated fresh air in the regeneration passage 12. Specifically, when the rotary dehumidification system 10 includes a heat exchanger 14, the pipe of the regeneration passage 12 is lengthened and multiple corners are added, which greatly increases the pipe resistance. In this case, the second fan 124 provides sufficient air flow for the regeneration zone 133, while the third fan 125 is used to drive the regeneration air leaving the regeneration zone 133 to quickly enter the second path 142 of the heat exchanger 14, and helps to effectively discharge the regenerated fresh air after heat exchange, thereby reducing the heat loss caused by the regeneration air being trapped between the regeneration zone 133 and the second path 142 of the heat exchanger 14, thereby minimizing the energy consumption of the first heater 123 and further improving the energy utilization rate of the rotary dehumidification system 10.

[0103] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0104] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0105] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0106] In the description of the present application, “plurality” means two or more.

[0107] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0108] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0109] Other structures of ... according to the embodiments of the present application, such as ... and ..., and operations are known to ordinary technicians in the field and will not be described in detail here.

[0110] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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 present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0111] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rotary dehumidification system, characterized in that: include: A dehumidification passage, comprising a first filter, a processing area, a temperature control element and a second filter arranged in sequence along the flow direction of fresh air, the dehumidification passage also comprising a first fan for driving the flow of fresh air, and an outlet of the dehumidification passage is communicated with the room; A regeneration passage, comprising a third filter, a first surface cooler, a first heater and a regeneration zone arranged in sequence along the flow direction of the regeneration fresh air, and the regeneration passage also comprises a fan unit for driving the flow of the regeneration fresh air; The dehumidification wheel at least comprises the treatment zone and the regeneration zone.

2. The rotary dehumidification system according to claim 1, characterized in that: Also includes: A heat exchanger having a first path and a second path for mutually exchanging heat and connected to the regeneration path, the first path of the heat exchanger being connected between the first surface cooler and the first heater, and the second path of the heat exchanger being connected to the outlet of the regeneration zone.

3. The rotary dehumidification system according to claim 1 or 2, characterized in that: The dehumidification wheel further includes a waste heat recovery zone located between the treatment zone and the regeneration zone. The end surface of the dehumidification wheel is a circular surface. The treatment zone, the regeneration zone and the waste heat recovery zone each occupy a sector surface of a partial proportion of the circular surface. The wheel dehumidification system further includes: A first branch passage, wherein an inlet of the first branch passage is connected to the dehumidification passage, and an outlet of the first branch passage is connected to an inlet of the waste heat recovery area.

4. The rotary dehumidification system according to claim 3, characterized in that: The dehumidification wheel further includes a fan-shaped preheating zone located between the treatment zone and the regeneration zone, and the preheating zone and the waste heat recovery zone are respectively located on both sides of the treatment zone, and the treatment zone, the waste heat recovery zone, the regeneration zone and the preheating zone constitute the end surface of the dehumidification wheel; the wheel dehumidification system further includes: The inlet of the second branch passage is connected to the outlet of the waste heat recovery zone, the outlet of the second branch passage is connected to the inlet of the preheating zone, and the outlet of the preheating zone is connected to the outdoors.

5. The rotary dehumidification system according to any one of claims 1 to 4, characterized in that: Also includes: A return air passage is connected between the room and the dehumidification passage, and the connection between the return air passage and the dehumidification passage is located between the first filter and the processing area.

6. The rotary dehumidification system according to claim 5, characterized in that: The dehumidification passage also includes: A second surface cooler is provided between the first filter and the processing area, and a connection point between the return air passage and the dehumidification passage is located between the second surface cooler and the processing area.

7. The rotary dehumidification system according to claim 6, characterized in that: The dehumidification passage also includes: The third surface cooler is arranged between the second surface cooler and the processing area, and the connection between the return air passage and the dehumidification passage is located between the second surface cooler and the third surface cooler.

8. The rotary dehumidification system according to any one of claims 1 to 7, characterized in that: The temperature control element also includes: A fourth condenser and a second heater are configured to be processed to a target operating state according to an indoor demand temperature.

9. The rotary dehumidification system according to any one of claims 1 to 8, characterized in that: The first filter and the third filter are primary efficiency filters, and the second filter is a medium efficiency filter.

10. The rotary dehumidification system according to any one of claims 1 to 9, characterized in that: The first fan is arranged between the processing area and the temperature control element; and / or, In the case where the rotary dehumidification system includes a heat exchanger, the fan unit includes: a second fan, the second fan being disposed between the heater and the regeneration zone; A third fan is arranged at the outlet of the heat exchanger.

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