Dehumidification equipment

Abstract

The dehumidification equipment comprises a shell, a surface cooling assembly, a dehumidification rotating wheel, a first heat exchange assembly and a second heat exchange assembly, the shell is provided with a first air inlet, a second air inlet, an air supply outlet and an exhaust outlet, the surface cooling assembly comprises a first surface air cooler, and the dehumidification rotating wheel is provided with a dehumidification area and a regeneration area which can be replaced with each other. The first heat exchange assembly comprises a first condenser and a first evaporator which are connected, and the second heat exchange assembly comprises a second condenser and a second evaporator which are connected. The first air inlet, the first evaporator, the first surface air cooler, the dehumidification area and the air supply outlet are sequentially connected to form a dehumidification air path of the dehumidification equipment, and the second air inlet, the first condenser, the second condenser, the regeneration area, the second evaporator and the exhaust outlet are sequentially connected to form a regeneration air path of the dehumidification equipment. The dehumidification equipment is low in energy consumption and free of the steam water hammer problem.

Description

Technical Field

[0001] The present application relates to the technical field of air humidity regulation, and in particular to a dehumidification device. Background Art

[0002] Rotary dehumidifiers are often used in places where air humidity needs to be controlled, such as factories for producing lithium batteries. Rotary dehumidifiers mainly include a rotor, and a desiccant such as silica gel or molecular sieve is set on the surface of the rotor. When air passes through the hygroscopic area of ​​the rotor, the air contacts the desiccant, which can absorb moisture in the air and reduce the humidity of the air. After the rotor absorbs moisture, it needs to be regenerated to restore its moisture absorption capacity. Regeneration is achieved by heating. Hot air flows through the regeneration area of ​​the rotor, evaporating the moisture adsorbed by the desiccant and discharging it out of the equipment.

[0003] However, the rotary dehumidifier in the related art uses steam as a heat source to heat the air to achieve regeneration of the rotary wheel. This process consumes a lot of energy and is prone to steam water hammer problems. Summary of the invention

[0004] Based on this, an embodiment of the present application provides a dehumidification device. The dehumidification device sets a first evaporator to recover the air heat of the dehumidification air path and provides it to the first condenser. A second evaporator is set to recover the air heat of the regeneration air path and provide it to the second condenser. The first condenser and the second condenser can heat the air instead of steam heating. The energy consumption of the dehumidification device is low, and steam water hammer will not occur.

[0005] The dehumidification device provided in the embodiment of the present application includes:

[0006] A housing having a first air inlet, a second air inlet, an air supply port and an air exhaust port;

[0007] A surface cooling assembly, the surface cooling assembly comprising a first surface cooler;

[0008] A dehumidification wheel having a dehumidification zone and a regeneration zone which are interchangeable;

[0009] A first heat exchange component, the first heat exchange component comprising a first condenser and a first evaporator connected to each other;

[0010] A second heat exchange assembly, the second heat exchange assembly comprising a second condenser and a second evaporator connected to each other;

[0011] The first air inlet, the first evaporator, the first surface cooler, the dehumidification area and the air supply port are sequentially connected to form a dehumidification air path of the dehumidification equipment;

[0012] The second air inlet, the first condenser, the second condenser, the regeneration zone, the second evaporator and the air outlet are sequentially connected to form a regeneration air path of the dehumidification equipment.

[0013] In a possible implementation, the surface cooling assembly further includes a second surface cooler, and the first air inlet, the second surface cooler and the first surface cooler are connected in sequence.

[0014] In a possible implementation, the second condenser is located between the first air inlet and the first evaporator.

[0015] In a possible implementation, the second condenser is located between the first evaporator and the first condenser.

[0016] In a possible implementation, the first heat exchange assembly further includes a first compressor and a first expansion valve, and the first condenser, the first expansion valve, the first evaporator and the first compressor are sequentially connected end to end;

[0017] And / or, the second heat exchange component further includes a second compressor and a second expansion valve, and the second condenser, the second expansion valve, the second evaporator and the second compressor are sequentially connected end to end.

[0018] In a possible implementation, the dehumidification device further includes a third surface cooler, and the third surface cooler is connected between the second air inlet and the first condenser.

[0019] In a possible implementation, the shell further has a return air port, and the return air port is connected to a side of the first surface cooler away from the dehumidification zone.

[0020] In one possible implementation, the dehumidification equipment also includes a temperature control component, which includes a fourth surface cooler and a heater, which are sequentially arranged between the dehumidification zone and the air supply outlet, and one of the fourth surface cooler and the heater is turned on and the other is turned off.

[0021] In a possible implementation, the dehumidification equipment also includes a fan assembly, which includes at least one of a first fan and a second fan, the first fan is arranged between the dehumidification zone and the air supply port, and the second fan is arranged between the regeneration zone and the air exhaust port.

[0022] In one possible implementation, the dehumidification equipment also includes a filter assembly, which includes at least one of a first filter element, a second filter element, and a third filter element. The first filter element is arranged between the first air inlet and the dehumidification zone, the second filter element is arranged between the dehumidification zone and the air supply port, and the third filter element is arranged between the second air inlet and the regeneration zone.

[0023] The dehumidification equipment provided in the embodiment of the present application includes a shell, a surface cooling component, a dehumidification wheel, a first heat exchange component and a second heat exchange component. The shell includes a first air inlet, a second air inlet, an air supply port and an air exhaust port. The surface cooling component includes a first surface cooler. The dehumidification wheel includes a dehumidification zone and a regeneration zone. The first heat exchange component includes a first condenser and a first evaporator. The second heat exchange component includes a second condenser and a second evaporator.

[0024] A first air inlet is provided for supplying air to enter the dehumidification air path of the dehumidification equipment, an air supply outlet is provided for delivering the dehumidified air into the room, a first evaporator is provided for absorbing the heat of the air entering from the first air inlet and providing the heat to the first condenser, a first cooler is provided for cooling and dehumidifying the air, and a dehumidification zone is provided for absorbing the moisture in the air and thereby reducing the humidity of the air. In this way, the air flows in sequence along the first air inlet, the first evaporator, the first cooler, the dehumidification zone and the air supply outlet, thereby forming the dehumidification air path of the dehumidification equipment, thereby realizing the dehumidification function of the dehumidification equipment.

[0025] The second air inlet is provided for air to enter the regeneration air path of the dehumidifier, and the exhaust port is provided for air discharged from the dehumidifier after the dehumidifier wheel is regenerated. The first condenser and the second condenser are provided for heating the air in sequence, and then the regeneration zone is regenerated by the hot air. The second evaporator is provided for recovering the heat of the hot air and providing it to the second condenser. In this way, the air flows in sequence along the second air inlet, the first condenser, the second condenser, the regeneration zone, the second evaporator and the exhaust port, thereby forming the regeneration air path of the dehumidifier, thereby realizing the regeneration function of the dehumidifier.

[0026] Moreover, during the dehumidification and regeneration process, the heat of the air entering the dehumidification equipment can be fully recycled and utilized through the first heat exchange component and the second heat exchange component, thereby reducing the energy consumption of the dehumidification equipment. The first heat exchange component and the second heat exchange component can recycle the heat of the air to replace heat sources such as steam, thereby solving the steam water hammer problem.

[0027] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the dehumidification equipment provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0029] Figure 1 A schematic diagram of the structure of a dehumidification device provided in an embodiment of the present application;

[0030] Figure 2 Another structural schematic diagram of the dehumidification device provided in the embodiment of the present application;

[0031] Figure 3A schematic diagram of the structure of the first heat exchange component in the dehumidification equipment provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] 100-housing; 110-first air inlet; 120-second air inlet; 130-air supply outlet; 140-air exhaust outlet; 150-air return outlet;

[0034] 200-surface cooling assembly; 210-first surface cooler; 220-second surface cooler;

[0035] 300-dehumidification wheel; 310-dehumidification zone; 320-regeneration zone;

[0036] 400 - first heat exchange component; 410 - first condenser; 420 - first evaporator; 430 - first compressor; 440 - first expansion valve;

[0037] 500 - second heat exchange component; 510 - second condenser; 520 - second evaporator; 530 - second compressor; 540 - second expansion valve;

[0038] 600-third surface cooler;

[0039] 700-temperature control component; 710-fourth surface cooler; 720-heater;

[0040] 800-fan assembly; 810-first fan; 820-second fan;

[0041] 900 - filter assembly; 910 - first filter element; 920 - second filter element; 930 - third filter element.

[0042] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the 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.

[0046] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0047] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0048] Rotary dehumidifiers are often used in places where air humidity needs to be controlled, such as factories for producing lithium batteries. Rotary dehumidifiers mainly include a rotor, and a desiccant such as silica gel or molecular sieve is set on the surface of the rotor. When air passes through the hygroscopic area of ​​the rotor, the air contacts the desiccant, which can absorb moisture in the air and reduce the humidity of the air. After the rotor absorbs moisture, it needs to be regenerated to restore its moisture absorption capacity. Regeneration is achieved by heating. Hot air flows through the regeneration area of ​​the rotor, evaporating the moisture adsorbed by the desiccant and discharging it out of the equipment.

[0049] However, the rotary dehumidifier in the related art uses steam as a heat source to heat the air to achieve regeneration of the rotary wheel. This process consumes a lot of energy and is prone to steam water hammer problems.

[0050] In view of this, an embodiment of the present application provides a dehumidification device, which disposes a first evaporator to recover the air heat in the dehumidification air path and provides it to the first condenser, and disposes a second evaporator to recover the air heat in the regeneration air path and provides it to the second condenser. The first condenser and the second condenser can heat the air in turn to regenerate the regeneration zone, thereby fully recovering and utilizing the heat of the air, thereby reducing the energy consumption of the dehumidification device, and the first evaporator and the second evaporator can replace steam as a heat source to heat the air, thereby preventing the dehumidification device from experiencing steam water hammer.

[0051] The specific implementation of the dehumidification equipment provided in the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0052] Reference Figures 1 to 3 As shown, the dehumidification device provided in the embodiment of the present application includes a shell 100, a surface cooling component 200, a dehumidification wheel 300, a first heat exchange component 400 and a second heat exchange component 500, the shell 100 has a first air inlet 110, a second air inlet 120, an air supply port 130 and an air exhaust port 140, the surface cooling component 200 includes a first surface cooler 210, the dehumidification wheel 300 has a dehumidification zone 310 and a regeneration zone 320 that are interchangeable, the first heat exchange component 400 includes a first condenser 410 and a first evaporator 420 that are connected, and the second heat exchange component 500 includes a second condenser 510 and a second evaporator 520 that are connected.

[0053] The first air inlet 110, the first evaporator 420, the first surface cooler 210, the dehumidification zone 310 and the air supply outlet 130 are connected in sequence to form a dehumidification air path of the dehumidification equipment, and the second air inlet 120, the first condenser 410, the second condenser 510, the regeneration zone 320, the second evaporator 520 and the air outlet 140 are connected in sequence to form a regeneration air path of the dehumidification equipment.

[0054] It is understandable that the dehumidification device of this embodiment can be used in indoor places where humidity needs to be controlled. The dehumidification device can dehumidify outdoor air before sending it indoors, and discharge water vapor to the outdoors, thereby reducing indoor air humidity. For example, the indoor place can be a production plant, a warehouse, a museum, etc., and this embodiment does not limit this.

[0055] In this embodiment, the surface cooling component 200, the dehumidification wheel 300, the first heat exchange component 400 and the second heat exchange component 500 can all be installed in the shell 100, and then the surface cooling component 200, the dehumidification wheel 300, the first heat exchange component 400 and the second heat exchange component 500 are protected by the shell 100.

[0056] A first air inlet 110, a second air inlet 120, an air supply port 130 and an air exhaust port 140 may be provided on the shell 100. The first air inlet 110 is used to communicate with the outdoors, so that the outdoor air enters the dehumidification air path of the dehumidification device through the first air inlet 110. The air supply port 130 is used to communicate with the indoors, so that the air after dehumidification treatment enters the indoors through the air supply port 130, thereby reducing the indoor air humidity. The second air inlet 120 can be connected to the outdoors, so that the outdoor air enters the regeneration air path of the dehumidification device through the second air inlet 120. The second air inlet 120 can also be connected to the indoors, so that the indoor air enters the regeneration air path of the dehumidification device through the second air inlet 120. The exhaust port 140 is connected to the outdoors, and the air is discharged from the dehumidification device through the exhaust port 140.

[0057] Since the first air inlet 110, the first evaporator 420, the first surface cooler 210, the dehumidification zone 310 and the air supply port 130 are connected in sequence to form a dehumidification air path of the dehumidification equipment, that is, after the air flows along the first air inlet 110, the first evaporator 420, the first surface cooler 210, the dehumidification zone 310 and the air supply port 130 in sequence, the humidity of the air can be effectively reduced.

[0058] The first evaporator 420 is used to absorb the heat in the air entering from the first air inlet 110 and provide it to the first condenser 410. Before the first cooler 210 is used to cool and dehumidify the air, the first evaporator 420 can recover part of the heat of the air, and in this process, the first evaporator 420 can also cool and dehumidify the air. Then, the first cooler 210 is used to cool the air, so that the air condenses and precipitates water, thereby reducing the humidity of the air. The desiccant in the dehumidification zone 310 is used to continue to absorb moisture in the air. In this way, the air entering the dehumidification device from the outside can be dehumidified by passing through the first evaporator 420, the first cooler 210 and the dehumidification zone 310 in turn, so that the humidity of the air sent into the room through the air supply port 130 is low. After mixing with the original air in the room, the humidity of the air in the room can be effectively reduced.

[0059] Since the second air inlet 120, the first condenser 410, the second condenser 510, the regeneration zone 320, the second evaporator 520 and the exhaust port 140 are connected in sequence to form the regeneration air path of the dehumidification equipment, that is, after the air flows along the second air inlet 120, the first condenser 410, the second condenser 510, the regeneration zone 320, the second evaporator 520 and the exhaust port 140 in sequence, the desiccant in the regeneration zone 320 can be regenerated and the moisture can be discharged.

[0060] The first condenser 410 and the second condenser 510 can heat the air entering from the second air inlet 120 in turn, thereby improving the heating effect on the air. After that, the hot air passes through the regeneration zone 320, thereby taking away the moisture on the desiccant in the regeneration zone 320. Before the hot air is discharged to the outside through the exhaust port 140, the second evaporator 520 can recover the heat in the hot air and provide it to the second condenser 510.

[0061] In this reciprocating cycle, the first evaporator 420 continuously recovers the heat of the air upstream of the dehumidification air path, the second evaporator 520 can continuously recover the heat of the air downstream of the regeneration air path, and the first condenser 410 and the second condenser 510 can continuously heat the air upstream of the regeneration air path to achieve the regeneration of the dehumidification wheel 300. In this process, the dehumidification equipment fully recovers and utilizes the existing heat to heat the air in the regeneration air path, so that the dehumidification equipment does not need to set up additional steam boilers and other devices to heat the air in the regeneration air path, thereby reducing the working energy consumption of the dehumidification equipment, and the dehumidification equipment will not have steam water hammer phenomenon.

[0062] Among them, the first condenser 410 and the first evaporator 420 can be connected by a copper tube, so that the refrigerant and other heat exchange media can flow between the first condenser 410 and the first evaporator 420, and gas-liquid conversion can be performed. The second condenser 510 and the second evaporator 520 can also be connected by a copper tube, so that the refrigerant and other heat exchange media can flow between the second condenser 510 and the second evaporator 520, and gas-liquid conversion can be performed.

[0063] It should be understood that when the dehumidification equipment is working, the dehumidification wheel 300 can rotate slowly, and the dehumidification zone 310 and the regeneration zone 320 are not a fixed area, but can be replaced with each other, that is, when the dehumidification wheel 300 rotates a certain angle, the dehumidification zone 310 can become the regeneration zone 320, and the regeneration zone 320 can become the dehumidification zone 310.

[0064] When a certain area of ​​the dehumidification wheel 300 is in the dehumidification air path, the area can be regarded as the dehumidification zone 310 , and when a certain area of ​​the dehumidification wheel 300 is in the regeneration air path, the area can be regarded as the regeneration zone 320 .

[0065] The dehumidification device provided in the embodiment of the present application includes a shell 100, a surface cooling component 200, a dehumidification wheel 300, a first heat exchange component 400 and a second heat exchange component 500, the shell 100 includes a first air inlet 110, a second air inlet 120, an air supply port 130 and an air outlet 140, the surface cooling component 200 includes a first surface cooler 210, the dehumidification wheel 300 includes a dehumidification zone 310 and a regeneration zone 320, the first heat exchange component 400 includes a first condenser 410 and a first evaporator 420, and the second heat exchange component 500 includes a second condenser 510 and a second evaporator 520. The first air inlet 110 is provided for air to enter the dehumidification air path of the dehumidification device, the air supply port 130 is provided for sending the dehumidified air into the room, the first evaporator 420 is provided for absorbing the heat of the air entering from the first air inlet 110 and providing the heat to the first condenser 410, the first cooler 210 is provided for cooling and dehumidifying the air, and the dehumidification zone 310 is provided for absorbing the moisture in the air and reducing the humidity of the air. In this way, the air flows along the first air inlet 110, the first evaporator 420, the first cooler 210, the dehumidification zone 310 and the air supply port 130 in sequence, thereby forming the dehumidification air path of the dehumidification device, thereby realizing the dehumidification function of the dehumidification device. The second air inlet 120 is provided for air to enter the regeneration air path of the dehumidification device, and the exhaust port 140 is provided for exhausting the air after the regeneration of the dehumidification wheel 300 from the dehumidification device. The first condenser 410 and the second condenser 510 are provided to heat the air in sequence, and then the regeneration zone 320 is regenerated by the hot air. The second evaporator 520 is provided to recover the heat of the hot air and provide it to the second condenser 510. In this way, the air flows along the second air inlet 120, the first condenser 410, the second condenser 510, the regeneration zone 320, the second evaporator 520 and the exhaust port 140 in sequence, thereby forming the regeneration air path of the dehumidification device, thereby realizing the regeneration function of the dehumidification device. In the process of dehumidification and regeneration, the heat of the air can be fully recycled and utilized through the first heat exchange component 400 and the second heat exchange component 500, thereby reducing the energy consumption of the dehumidification device, and the first heat exchange component 400 and the second heat exchange component 500 can recycle and utilize the heat of the air, thereby replacing heat sources such as steam, thereby solving the steam water hammer problem.

[0066] Reference Figure 1 and Figure 2 As shown, in a possible implementation, the surface cooling assembly 200 further includes a second surface cooler 220, and the first air inlet 110, the second surface cooler 220 and the first surface cooler 210 are connected in sequence.

[0067] In this way, the air entering from the first air inlet 110 can be cooled and dehumidified by the second surface cooler 220 and the first surface cooler 210, and then dehumidified by the dehumidification area 310. That is to say, the surface cooling component 200 can perform secondary dehumidification treatment on the air upstream of the dehumidification air path, thereby improving the dehumidification effect of the dehumidification equipment.

[0068] Reference Figure 1 As shown, in some embodiments, the second cooler 220 is located between the first air inlet 110 and the first evaporator 420. That is, in this embodiment, the air flows along the first air inlet 110, the second cooler 220, the first evaporator 420, the first cooler 210, the dehumidification zone 310 and the air supply port 130 in sequence. Therefore, the air entering from the first air inlet 110 is first cooled and dehumidified by the second cooler 220. When the temperature difference between the air and the second cooler 220 is large, the condensation and dehumidification effect of the second cooler 220 is better. Then, the heat is recovered and the temperature is reduced and dehumidified by the first condenser 410, and the air is dehumidified by the first cooler 210 and the dehumidification zone 310 in sequence. In this way, the dehumidification effect of the dehumidification equipment is improved.

[0069] Reference Figure 2 As shown, in some embodiments, the second condenser 220 is located between the first evaporator 420 and the first condenser 210 .

[0070] It is understandable that in this arrangement, the air can flow in sequence along the first air inlet 110, the first evaporator 420, the second cooler 220, the first cooler 210, the dehumidification zone 310 and the air supply port 130. Since the air entering from the first air inlet 110 has a high heat content, the air heat is first absorbed by the first evaporator 420, so that the first evaporator 420 can fully recycle the air upstream of the dehumidification air path, and the higher temperature air can make the heat exchange medium of the first evaporator 420 evaporate at a higher temperature, thereby increasing the evaporation temperature of the first evaporator 420, thereby reducing the energy consumption of the dehumidification equipment, and thus improving the energy efficiency level of the dehumidification equipment. Afterwards, the air passes through the second cooler 220, the first cooler 210 and the dehumidification zone 310 in sequence for dehumidification treatment, thereby effectively reducing the humidity of the air.

[0071] Refer to 1 to Figure 3 As shown, in a possible implementation, the first heat exchange assembly 400 further includes a first compressor 430 and a first expansion valve 440, and the first condenser 410, the first expansion valve 440, the first evaporator 420 and the first compressor 430 are sequentially connected end to end.

[0072] And / or, the second heat exchange assembly 500 further includes a second compressor 530 and a second expansion valve 540, and the second condenser 510, the second expansion valve 540, the second evaporator 520 and the second compressor 530 are sequentially connected end to end.

[0073] With such an arrangement, the first compressor 430 can compress the refrigerant or other heat exchange medium into a high-pressure gas, promote its circulation in the first heat exchange component 400, and increase the temperature of the refrigerant so that it releases heat in the first condenser 410, thereby heating the air upstream of the regeneration air path through the first condenser 410. The first expansion valve 440 can throttle and reduce the pressure of the high-pressure liquid refrigerant to turn it into a low-pressure liquid refrigerant, thereby allowing the refrigerant in the first evaporator 420 to absorb the heat of the air upstream of the dehumidification air path.

[0074] The second compressor 530 can compress the refrigerant and other heat exchange media into a high-pressure gas, promote its circulation in the second heat exchange component 500, and increase the temperature of the refrigerant so that it releases heat in the second condenser 510, and then the air upstream of the regeneration air path is secondary heated by the second condenser 510. The second expansion valve 540 can throttle and reduce the pressure of the high-pressure liquid refrigerant to turn it into a low-pressure liquid refrigerant, so that the refrigerant in the second evaporator 520 absorbs the heat of the air downstream of the regeneration air path.

[0075] It should be noted that the first condenser 410, the first expansion valve 440, the first evaporator 420 and the first compressor 430 are connected end to end in sequence, which means that they are connected end to end in sequence on the circulation path of the refrigerant, so that the refrigerant and other heat exchange medium circulates in the first condenser 410, the first expansion valve 440, the first evaporator 420 and the first compressor 430. Similarly, the second condenser 510, the second expansion valve 540, the second evaporator 520 and the second compressor 530 are connected end to end in sequence, which means that they are connected end to end in sequence on the circulation path of the refrigerant, so that the refrigerant and other heat exchange medium circulates in the second condenser 510, the second expansion valve 540, the second evaporator 520 and the second compressor 530.

[0076] Among them, the first condenser 410, the first expansion valve 440, the first evaporator 420 and the first compressor 430 can be connected in sequence through copper tubes, so that the refrigerant and other heat exchange media can circulate in the first heat exchange component 400, so that the first heat exchange component 400 can absorb and release heat, and the second condenser 510, the second expansion valve 540, the second evaporator 520 and the second compressor 530 can be connected in sequence through copper tubes, so that the refrigerant and other heat exchange media can circulate in the second heat exchange component 500, so that the second heat exchange component 500 can absorb and release heat.

[0077] Reference Figure 1 and Figure 2As shown, in a possible implementation, the dehumidification device further includes a third surface cooler 600 , and the third surface cooler 600 is connected between the second air inlet 120 and the first condenser 410 .

[0078] It should be noted that before the air in the regeneration air path is heated, the humidity of the air is low, which can reduce the regeneration temperature of the dehumidification wheel 300, that is, the air temperature passing through the regeneration zone 320 can be reduced, thereby reducing the energy consumed by the dehumidification equipment regeneration.

[0079] Therefore, in this embodiment, the third cooler 600 is provided between the second air inlet 120 and the first condenser 410, so that the air entering the regeneration air path from the second air inlet 120 can first pass through the third cooler 600 for dehumidification treatment, thereby reducing the air humidity of the regeneration air path, and then pass through the first condenser 410 and the second condenser 510 in sequence for heating, and then the regeneration area 320 is regenerated by hot air. At this time, the first condenser 410 and the second condenser 510 can heat the air to a lower temperature, thereby reducing the energy consumption of the dehumidification equipment.

[0080] Reference Figure 1 and Figure 2 As shown, in some embodiments, the housing 100 further has a return air port 150 , and the return air port 150 is connected to a side of the first surface cooler 210 facing away from the dehumidification zone 310 .

[0081] It should be understood that the return air vent 150 can be connected to the indoor room, and the indoor air enters the dehumidification air path through the return air vent 150 and is mixed with the air processed by the second condenser 220 and the first evaporator 420. The mixed air is then processed in turn by the first condenser 210 and the dehumidification zone 310. Since the indoor air has a lower humidity than the outdoor air after being processed by the dehumidification equipment for a period of time, the indoor air is introduced into the dehumidification air path through the return air vent 150, which can increase the air flow of the dehumidification air path and reduce the air humidity of the dehumidification air path, thereby reducing the energy consumption of the dehumidification equipment.

[0082] Reference Figure 1 and Figure 2 As shown, in a possible implementation, the dehumidification device also includes a temperature control component 700, and the temperature control component 700 includes a fourth surface cooler 710 and a heater 720, and the fourth surface cooler 710 and the heater 720 are sequentially arranged between the dehumidification zone 310 and the air supply port 130, and one of the fourth surface cooler 710 and the heater 720 is turned on and the other is turned off.

[0083] Therefore, four coolers and a heater 720 are set between the dehumidification zone 310 and the air supply port 130, and one of the fourth cooler 710 and the heater 720 is turned on, and the other of the fourth cooler 710 and the heater 720 is turned off, so that the dehumidification equipment can selectively turn on the fourth cooler 710 or the heater 720, and then cool the air downstream of the dehumidification air path through the fourth cooler 710, or heat the air downstream of the dehumidification air path through the heater 720, so as to control the temperature of the air supply port 130 within the desired range.

[0084] For example, in summer, the temperature of the air entering from the first air inlet 110 is about 35°C, which can be reduced to about 25°C after passing through the first evaporator 420, and can be reduced to about 13°C after passing through the second condenser 220, and then rise to about 18°C ​​after mixing with the return air from the return air outlet 150. The temperature of the return air is about 25°C, and it drops to about 13°C after passing through the first condenser 210, and then is processed by the fourth condenser 710 to control the temperature of the air supply outlet 130 at about 13°C.

[0085] Reference Figure 1 and Figure 2 As shown, in a possible implementation, the dehumidification device also includes a fan assembly 800, and the fan assembly 800 includes at least one of a first fan 810 and a second fan 820, the first fan 810 is arranged between the dehumidification zone 310 and the air supply port 130, and the second fan 820 is arranged between the regeneration zone 320 and the exhaust port 140.

[0086] In this way, the first fan 810 can provide negative pressure suction to suck outdoor air into the first air inlet 110, and after the air flows along the dehumidification air path, it is sent to the room from the air supply port 130. The second fan 820 can provide negative pressure suction to suck outdoor air into the second air inlet 120, and after the air flows along the regeneration air path, it is discharged to the outside from the air outlet 140.

[0087] For example, the first fan 810 may be disposed between the dehumidification zone 310 and the temperature adjustment assembly 700 , and the second fan 820 may be disposed between the regeneration zone 320 and the second condenser 510 .

[0088] Reference Figure 1 and Figure 2As shown, in a possible implementation, the dehumidification equipment also includes a filter assembly 900, and the filter assembly 900 includes at least one of a first filter element 910, a second filter element 920 and a third filter element 930. The first filter element 910 is arranged between the first air inlet 110 and the dehumidification zone 310, the second filter element 920 is arranged between the dehumidification zone 310 and the air supply port 130, and the third filter element 930 is arranged between the second air inlet 120 and the regeneration zone 320.

[0089] It should be understood that the dehumidification wheel 300 is provided with a desiccant such as silica gel or molecular sieve, and dust, particulate matter and other pollutants in the air may adhere to the surface of the dehumidification wheel 300, thereby reducing the dehumidification capacity of the dehumidification wheel 300. Therefore, in this embodiment, the first filter element 910 can effectively remove impurities in the air entering from the first air inlet 110, and the third filter element 930 can effectively remove impurities in the air entering from the second air inlet 120, preventing these pollutants from damaging or clogging the dehumidification wheel 300, thereby extending the service life of the dehumidification wheel 300. The second filter element 920 can filter the air after dehumidification treatment, thereby making the air sent to the room from the air outlet 130 more fresh and clean.

[0090] The following is a comparative analysis of the economic efficiency of the dehumidification equipment of the related art and the dehumidification equipment of this embodiment.

[0091]

[0092] Taking summer conditions as an example, the dehumidification equipment runs 24 hours a day for 90 days, the electricity fee is calculated at 0.7 yuan / kWh, the steam fee of the self-built boiler room is calculated at 320-360 yuan / ton (340 yuan / ton in this case), the COP of the air conditioning water system is calculated at 4.5, and the dehumidification equipment is operated at 85% load. The energy consumption calculation results of the dehumidification equipment of the related art and the dehumidification equipment of this embodiment are as follows.

[0093] 1. Energy consumption calculation of dehumidification equipment in related technologies

[0094] The COP of chilled water in dehumidification equipment of related technology is generally 4.5, so the power consumption of the refrigeration system is N=(140+65+50+25) / 4.5=62.2kW, and its summer electricity operating cost is: S1=62.2×24×90×0.7×85%=80,000 yuan.

[0095] The total heating capacity required for regeneration heating of the dehumidification equipment in related technology is 55kW, the latent heat value of 0.6Mpa saturated steam is 2066kj / kg, the total steam volume required is Q3=100 kg / h, and its operating cost S2 is: S2=100 / 1000×340×24×90×85%=62,000.

[0096] The total electric power of the fan of the dehumidification equipment in the related technology is 37.5kw (considering 70% variable frequency operation of the fan), and its operating cost S3 is: S3=37.5×70%×0.7×24×90=40,000.

[0097] In summary, the total operating cost of the dehumidification equipment of the related technology in summer is S=S1+S2+S3=182,000.

[0098] 2. Energy consumption calculation of the dehumidification equipment in this embodiment

[0099] For the dehumidification equipment of this embodiment, the total power of the first compressor 430 and the second compressor 530 is 15.0 kW, and the COP of the chilled water (used for the first cooler 210, the second cooler 220, the third cooler 600 and the fourth cooler 710) is 4.5, then the total power consumption N = (110 + 65 + 50 + 25) / 4.5 + 15.0 = 70.6 kW, and its summer electricity operating cost is: S1 = 70.6 × 24 × 90 × 0.7 × 85% = 91,000.

[0100] The regeneration heating capacity of the dehumidification equipment of this embodiment is provided free of charge by the first condenser 410 and the second condenser 510, so S2=0.

[0101] The total electric power of the fan assembly 800 of the dehumidification equipment of this embodiment is 37.5kw (considering 70% variable frequency operation of the fan), and its operating cost S3 is: S3=37.5×70%×0.7×24×90=40,000.

[0102] In summary, the total operating cost of the dehumidification equipment of this embodiment in summer is S=S1+S2+S3=131,000.

[0103] 3. Energy saving effect analysis

[0104] In summary, the rated air volume is 15000 m 3 / h, fresh air volume is 5000 m 3 / h, regeneration air supply volume is 4000 m 3 / h, the summer operating cost of the dehumidification equipment of the related technology is 182,000 yuan, and the summer operating cost of the dehumidification equipment of this embodiment is 131,000 yuan / year, saving 51,000 yuan in operating costs, and the summer energy saving rate is 28.0%.

[0105] In addition, compared with the electric heating type dehumidification equipment, the energy saving rate of the dehumidification equipment of this embodiment can reach 35%~45%, and the energy saving effect is more significant.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dehumidification device, characterized in that: include: A housing (100), the housing (100) having a first air inlet (110), a second air inlet (120), an air supply port (130), and an air exhaust port (140); A surface cooling assembly (200), wherein the surface cooling assembly (200) comprises a first surface cooler (210); A dehumidification rotary wheel (300), wherein the dehumidification rotary wheel (300) has a dehumidification zone (310) and a regeneration zone (320) that are interchangeable with each other; A first heat exchange component (400), the first heat exchange component (400) comprising a first condenser (410) and a first evaporator (420) connected to each other; A second heat exchange component (500), the second heat exchange component (500) comprising a second condenser (510) and a second evaporator (520) connected to each other; The first air inlet (110), the first evaporator (420), the first surface cooler (210), the dehumidification area (310) and the air supply port (130) are sequentially connected to form a dehumidification air path of the dehumidification device; The second air inlet (120), the first condenser (410), the second condenser (510), the regeneration zone (320), the second evaporator (520) and the air outlet (140) are sequentially connected to form a regeneration air path of the dehumidification equipment.

2. The dehumidification device according to claim 1, characterized in that: The surface cooling assembly (200) further comprises a second surface cooler (220), and the first air inlet (110), the second surface cooler (220) and the first surface cooler (210) are connected in sequence.

3. The dehumidification device according to claim 2, characterized in that: The second surface cooler (220) is located between the first air inlet (110) and the first evaporator (420).

4. The dehumidification device according to claim 2, characterized in that: The second condenser (220) is located between the first evaporator (420) and the first condenser (210).

5. The dehumidification device according to any one of claims 1 to 4, characterized in that: The first heat exchange component (400) further comprises a first compressor (430) and a first expansion valve (440), wherein the first condenser (410), the first expansion valve (440), the first evaporator (420) and the first compressor (430) are sequentially connected end to end; And / or, the second heat exchange component (500) further comprises a second compressor (530) and a second expansion valve (540), and the second condenser (510), the second expansion valve (540), the second evaporator (520) and the second compressor (530) are sequentially connected end to end.

6. The dehumidification device according to any one of claims 1 to 4, characterized in that: It also includes a third surface cooler (600), wherein the third surface cooler (600) is connected between the second air inlet (120) and the first condenser (410).

7. The dehumidification device according to any one of claims 1 to 4, characterized in that: The housing (100) further comprises an air return port (150), wherein the air return port (150) is connected to a side of the first surface cooler (210) facing away from the dehumidification zone (310).

8. The dehumidification device according to any one of claims 1 to 4, characterized in that: The invention also includes a temperature control component (700), wherein the temperature control component (700) includes a fourth surface cooler (710) and a heater (720), wherein the fourth surface cooler (710) and the heater (720) are arranged in sequence between the dehumidification area (310) and the air supply port (130), and one of the fourth surface cooler (710) and the heater (720) is turned on and the other is turned off.

9. The dehumidification device according to any one of claims 1 to 4, characterized in that: The invention also includes a fan assembly (800), wherein the fan assembly (800) includes at least one of a first fan (810) and a second fan (820), wherein the first fan (810) is arranged between the dehumidification zone (310) and the air supply port (130), and the second fan (820) is arranged between the regeneration zone (320) and the air exhaust port (140).

10. The dehumidification device according to any one of claims 1 to 4, characterized in that: The invention also includes a filter assembly (900), wherein the filter assembly (900) includes at least one of a first filter element (910), a second filter element (920) and a third filter element (930), wherein the first filter element (910) is arranged between the first air inlet (110) and the dehumidification zone (310), the second filter element (920) is arranged between the dehumidification zone (310) and the air supply port (130), and the third filter element (930) is arranged between the second air inlet (120) and the regeneration zone (320).

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