A rotary dehumidification system based on high-temperature heat pump regeneration

Abstract

This invention provides a rotary dehumidification system based on high-temperature heat pump regeneration. By integrating a high-temperature heat pump regeneration module into the rotary dehumidification system, it achieves centralized heating or cooling, providing both heating and cooling benefits. The low-temperature chilled water provided by the high-temperature heat pump regeneration module can provide a cold source for the first and second cooling coils on the treatment side, cooling and dehumidifying the air without the need for a separate chiller unit. Furthermore, it can recover heat from the regeneration exhaust air on the regeneration side through a third cooling coil, improving energy efficiency. The high-temperature hot water provided by the high-temperature heat pump regeneration module can provide a heat source for the regeneration side, enabling the dehumidification rotor to undergo desorption and regeneration. Additionally, when the fresh air temperature on the treatment side is below 5°C, the high-temperature hot water can directly preheat the fresh air, eliminating the need for additional electric heating devices or steam heating equipment. The heat generated by the evaporator and condenser of the high-temperature heat pump regeneration module is efficiently utilized, improving the overall energy efficiency of the system.

Description

Technical Field

[0001] This utility model relates to the field of industrial dehumidification technology, and in particular to a rotary dehumidification system based on high-temperature heat pump regeneration. Background Technology

[0002] In many places with strict requirements for air humidity, such as electronics workshops and pharmaceutical plants, rotary dehumidifiers are widely used due to their high dehumidification capacity. The traditional working process of a rotary dehumidifier is as follows: humid air on the treatment side is first cooled and dehumidified by chilled water, then enters the rotary treatment zone, where the moisture is adsorbed by the rotor, thus converting it into dry air that is delivered to the room. On the regeneration side, humid air typically needs to be heated to 120-135°C using high-grade electric heating or steam heating before entering the rotary regeneration zone for desorption. The resulting high-humidity air is finally discharged outdoors. However, this traditional operating mode has significant energy consumption issues.

[0003] To reduce the energy consumption of rotary dehumidifier units, existing dehumidification technologies have proposed applying heat pumps to rotary dehumidifier systems. By combining a heat pump condenser with regenerative heating, the heat pump's heating function provides some heat to the regeneration zone, thereby reducing regeneration energy consumption to some extent. However, this approach still has several shortcomings. On the one hand, the chilled water required for the treatment side relies on a chiller room supply, and the treated chilled water does not undergo heat recovery, resulting in significant energy waste. On the other hand, most newly added high-temperature heat pumps use scroll compressors and operate in fixed-frequency mode. Fixed-frequency heat pumps cannot flexibly adjust according to changes in actual load, greatly limiting energy efficiency and failing to fully realize the energy-saving potential of heat pump technology. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a rotary dehumidification system based on high-temperature heat pump regeneration to solve the problems that the prior art still has deficiencies in heat recovery of chilled water on the treatment side and flexible adjustment of the heat pump system.

[0005] To achieve the above and other related objectives, the first aspect of this utility model provides a rotary dehumidification system based on high-temperature heat pump regeneration, comprising: a treatment-side flow path, a regeneration-side flow path, and a high-temperature heat pump regeneration module; the high-temperature heat pump regeneration module is connected to the treatment-side flow path and the regeneration-side flow path respectively;

[0006] The high-temperature heat pump regeneration module is connected to the first hot coil, the first cold coil, and the second cold coil of the processing side flow path, respectively.

[0007] The high-temperature heat pump regeneration module is connected to the second hot coil and the third cold coil of the regeneration side flow path, respectively.

[0008] In some embodiments of the first aspect of this utility model, the processing-side flow path includes: a first primary filter, a first hot coil, a first cold coil, a dehumidifying wheel's wheel processing area, a second cold coil, a processing fan, and a medium-efficiency filter arranged sequentially along the processing-side airflow direction.

[0009] In some embodiments of the first aspect of this utility model, the regeneration side flow path includes: a second primary filter, a second heating coil, an auxiliary heater, a dehumidifying wheel regeneration zone, a third cooling coil, and a regeneration fan arranged sequentially along the regeneration side airflow direction.

[0010] In some embodiments of the first aspect of this utility model, the high-temperature heat pump regeneration module includes: an evaporator, a condenser, a throttling valve, and a compressor; wherein the throttling valve is connected to the evaporator and the condenser respectively; and the compressor is connected to the evaporator and the condenser respectively.

[0011] In some embodiments of the first aspect of this utility model, the high-temperature heat pump regeneration module further includes a cold water pump, and the first cold coil of the processing side flow path is provided with a first regulating water valve; the cold water pump is connected to the evaporator and the first cold coil respectively, and the first regulating water valve is connected to the evaporator; the first cold coil, the cold water pump, the evaporator and the first regulating water valve are connected to form a circulation loop.

[0012] In some embodiments of the first aspect of this utility model, the second cold coil of the processing side flow path is provided with a second regulating water valve; the second regulating water valve is connected to the evaporator, and the cold water pump is connected to the evaporator and the second cold coil respectively; the second cold coil, the cold water pump, the evaporator and the second regulating water valve are connected to form a circulation loop.

[0013] In some embodiments of the first aspect of this utility model, the third cold coil of the regeneration side flow path is provided with a third regulating water valve; the third regulating water valve is connected to the evaporator, and the cold water pump is connected to the evaporator and the third cold coil respectively; the third cold coil, the cold water pump, the evaporator and the third regulating water valve are connected to form a circulation loop.

[0014] In some embodiments of the first aspect of this utility model, the high-temperature heat pump regeneration module further includes a hot water pump, and the first heat coil of the processing side flow path is provided with a fourth regulating water valve; the fourth regulating water valve is connected to the condenser, and the hot water pump is connected to the condenser and the first heat coil respectively; the first heat coil, the hot water pump, the condenser and the fourth regulating water valve are connected to form a circulation loop.

[0015] In some embodiments of the first aspect of this utility model, the second heat coil of the regeneration side flow path is provided with a fifth regulating water valve; the fifth regulating water valve is connected to the condenser, and the hot water pump is connected to the condenser and the second heat coil respectively; the second heat coil, the hot water pump, the condenser and the fifth regulating water valve are connected to form a circulation loop.

[0016] In some embodiments of the first aspect of this utility model, the compressor is a screw compressor or a centrifugal compressor.

[0017] As described above, the rotary dehumidification system based on high-temperature heat pump regeneration provided by this utility model has the following beneficial effects:

[0018] (1) The rotary dehumidification system integrates a high-temperature heat pump regeneration module, which can provide centralized heating or cooling to the treatment side flow path and the regeneration side flow path, achieving the effect of both heating and cooling.

[0019] (2) The 7°C low-temperature chilled water provided by the high-temperature heat pump regeneration module can provide a cold source for the first and second cold coils on the treatment side, cooling and dehumidifying the air without the need for a separate chiller unit, thus reducing equipment costs. The 7°C low-temperature chilled water provided by the high-temperature heat pump regeneration module can also recover heat from the regeneration exhaust air on the regeneration side through the third cold coil, significantly improving the energy-saving effect of the system and realizing the efficient recycling of energy.

[0020] (3) The high-temperature hot water provided by the high-temperature heat pump regeneration module can provide a heat source for the regeneration side, enabling the dehumidification rotor to desorb and regenerate. On the other hand, when the fresh air temperature on the treatment side is lower than 5°C, the fresh air can be preheated directly by the high-temperature hot water without the need for additional electric heating devices or steam heating equipment, which effectively reduces energy consumption and equipment costs.

[0021] (4) The heat generated by the evaporator and condenser of the high-temperature heat pump regeneration module is efficiently utilized, realizing energy circulation and recovery, significantly improving the overall energy efficiency of the system and optimizing energy utilization efficiency.

[0022] (5) The compressor in the high-temperature heat pump regeneration module is a screw compressor or a centrifugal compressor, which can be adjusted according to the change of fresh air humidity and the change of cooling and heating load of the rotary dehumidifier, making it more energy-efficient. Attached Figure Description

[0023] Figure 1 The diagram shown is a schematic representation of a rotary dehumidification system based on high-temperature heat pump regeneration in one embodiment of this utility model.

[0024] Component designation explanation

[0025] 1. Handling the side flow path

[0026] 11 First pre-filter

[0027] 12 First heating coil

[0028] 121 Fourth regulating water valve

[0029] 13 First Cold Coil

[0030] 131 First regulating water valve

[0031] 14. Dehumidification impeller's impeller processing area

[0032] 15 Second Cold Coil

[0033] 151 Second regulating water valve

[0034] 16. Handling the fan

[0035] 17 Medium-efficiency filters

[0036] 2 Regeneration side flow path

[0037] 21 Second Primary Filter

[0038] 22 Second heating coil

[0039] 221 Fifth regulating water valve

[0040] 23 Auxiliary heater

[0041] 24. Regeneration zone of the dehumidifying impeller

[0042] 25 Third Cold Coil

[0043] 251 Third regulating water valve

[0044] 26 Regenerative Fan

[0045] 3 High-temperature heat pump regeneration module

[0046] 31 Condenser

[0047] 311 Hot water pump

[0048] 32 Evaporator

[0049] 321 Throttle Valve

[0050] 322 compressor

[0051] 323 Cold water pump Detailed Implementation

[0052] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0053] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0056] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit the utility model.

[0057] like Figure 1 The diagram shown illustrates the structure of a rotary dehumidifier system based on high-temperature heat pump regeneration, according to an embodiment of this invention. The rotary dehumidifier system based on high-temperature heat pump regeneration in this embodiment includes:

[0058] The system includes a processing side flow path 1, a regeneration side flow path 2, and a high-temperature heat pump regeneration module 3; the high-temperature heat pump regeneration module 3 is connected to the processing side flow path 1 and the regeneration side flow path 2, respectively.

[0059] The high-temperature heat pump regeneration module 3 is connected to the first hot coil 12, the first cold coil 13, and the second cold coil 15 of the processing side flow path, respectively.

[0060] The high-temperature heat pump regeneration module 3 is connected to the second hot coil 22 and the third cold coil 25 of the regeneration side flow path, respectively.

[0061] The heating coil is mainly used for heating indoor air. Its working principle is that when air passes through the heating coil, it exchanges heat with the medium inside the heating coil (such as high-temperature hot water), thereby raising the air temperature. The cooling coil is mainly used for cooling and dehumidifying indoor air. Its working principle is that when air passes through the cooling coil, it exchanges heat with the medium inside the cooling coil (such as low-temperature cold water), thereby lowering the air temperature and humidity.

[0062] It should be noted that this embodiment introduces a high-temperature heat pump regeneration module 3 into the traditional rotary dehumidification system. This high-temperature heat pump regeneration module 3 is connected to both the treatment-side flow path 1 and the regeneration-side flow path 2. Specifically, the high-temperature heat pump regeneration module 3 is connected to the cold coil and hot coil in both the treatment-side flow path 1 and the regeneration-side flow path 2. In this way, the high-temperature heat pump regeneration module 3 can provide centralized heating or cooling to both the treatment-side flow path 1 and the regeneration-side flow path 2, achieving a dual-purpose heating and cooling effect. This effectively overcomes the deficiency in existing dehumidification technologies where, when a heat pump is applied to a rotary dehumidification system, the traditional heat pump regeneration module only has a heating function and cannot provide cooling.

[0063] In one embodiment, such as Figure 1 As shown, the processing side flow path 1 includes: a first primary filter 11, a first hot coil 12, a first cold coil 13, a dehumidifying wheel processing area 14, a second cold coil 15, a processing fan 16, and a medium-efficiency filter 17 arranged sequentially along the processing side airflow direction.

[0064] It should be noted that, Figure 1 The arrows in the diagram indicate the direction of airflow. Outdoor air passes sequentially through the first primary filter 11, the first hot coil 12, the first cold coil 13, the dehumidification rotor's rotor processing area 14, the second cold coil 15, the processing fan 16, and the medium-efficiency filter 17, forming the processing air path of the processing side flow path 1.

[0065] In one specific embodiment, such as Figure 1 As shown, the first pre-filter 11 and the medium-efficiency filter 17 are used to filter the passing air. The filters in the dehumidification system purify the gas through the action of porous filter materials to ensure the air cleanliness of the workshop or other application areas. Based on their filtration effect, they are divided into pre-filters and medium-efficiency filters. Pre-filters and medium-efficiency filters can filter out some impurities in the air.

[0066] Pre-filters are simple, basic filters with a filtration efficiency of less than 90%. They mainly include pre-filter panel filters, pre-filter pleated filters, pre-filter bag filters, and metal mesh regeneration filters. Medium-efficiency filters have a filtration efficiency between 90% and 95%, and mainly include medium-efficiency bag filters and glass fiber filters. Compared to pre-filters, medium-efficiency filters offer better and more stable filtration, and have a longer service life. Using a combination of filters with different efficiencies in a dehumidification system—that is, using both pre-filters and medium-efficiency filters simultaneously—can effectively filter the air to meet purification requirements and ensure the dehumidifier functions properly.

[0067] The main function of the first hot coil 12 is to preheat the air sent to the process workshop or other production workshops. The first cold coil 13 and the second cold coil 1 are used to cool and dehumidify the incoming air and control the temperature and humidity of the supplied air.

[0068] The dehumidifying rotor is the main component of the rotary dehumidification system. The surface of the dehumidifying rotor is coated with a desiccant and has honeycomb-like porous channels. By slowly rotating the dehumidifying rotor, moisture in the humid air flowing through it can be absorbed, thus dehumidifying the processed air. In this embodiment, the dehumidifying rotor is divided into a rotor processing zone 14 and a rotor regeneration zone 24. Air first passes through the rotor processing zone 14, where the moisture is absorbed by the desiccant on the rotor, reducing the humidity of the processed air. Subsequently, the dehumidifying rotor continues to rotate slowly and enters the rotor regeneration zone 24. At this time, the high temperature of the regeneration air dehydrates the desiccant in the dehumidifying rotor, and the regeneration air carries away the moisture. Then, the regeneration air that has absorbed moisture is discharged, thus regenerating the dehumidifying rotor and maintaining its dehumidification capacity.

[0069] Specifically, in the air handling side flow path, outdoor humid air is filtered and purified by the first pre-filter 11 and then enters the first hot coil 12 for preheating. Then, the first cold coil 13 cools and dehumidifies the air. Next, it enters the dehumidification wheel's wheel processing area 14 for adsorption and dehumidification to obtain dry air. The dry air enters the second cold coil 15 for cooling to obtain dry air with suitable temperature and humidity. The handling fan 16 sends the dry air with suitable temperature and humidity into the medium-efficiency filter 17. Finally, the dry air is filtered by the medium-efficiency filter 17 and then sent into the room.

[0070] In one embodiment, such as Figure 1 As shown, the regeneration side flow path 2 includes: a second primary filter 21, a second heating coil 22, an auxiliary heater 23, a dehumidifying wheel regeneration zone 24, a third cold coil 25, and a regeneration fan 26 arranged sequentially along the regeneration side airflow direction.

[0071] It should be noted that the regenerated air passes sequentially through the second primary filter 21, the second heating coil 22, the auxiliary heater 23, the dehumidification rotor regeneration zone 24, the third cold coil 25, and the regeneration fan 26, forming the regeneration air path of the regeneration side flow path 2.

[0072] In one specific embodiment, such as Figure 1 As shown, the second pre-filter 21 is used to filter the passing air. Pre-filters are simple, basic filters with a filtration efficiency of less than 90%, and mainly include pre-filter plate filters, pre-filter pleated filters, pre-filter bag filters, and metal mesh regeneration filters. The second heating coil 22 and the auxiliary heater 23 are used to heat the air, and the third cooling coil 25 is used to recover heat from the air.

[0073] Specifically, in the regeneration side flow path of the air, the humid air enters the second primary filter 21 through the regeneration air inlet for filtration. The filtered air is heated sequentially by the second heating coil 22 and the auxiliary heater 23, and then enters the dehumidification rotor regeneration zone 24 to desorb the moisture in the rotor, so that the rotor can restore its dehumidification capacity. Then, it passes through the third cold coil 25 for heat recovery. After the humid air is cooled and dehumidified, it is discharged to the outside through the regeneration fan 26.

[0074] In one embodiment, such as Figure 1 As shown, the high-temperature heat pump regeneration module 3 includes: an evaporator 32, a condenser 31, a throttle valve 321, and a compressor 322; wherein the throttle valve 321 is connected to the evaporator 32 and the condenser 31 respectively; and the compressor 322 is connected to the evaporator 32 and the condenser 31 respectively.

[0075] It should be noted that the condenser 31, compressor 322, evaporator 32, and throttle valve 321 are connected by pipelines to form a circulation loop. A throttle valve 321 is provided on the connecting pipe between the condenser 31 and the evaporator 32, and a compressor 322 is provided on another connecting pipe between the condenser 31 and the evaporator 32.

[0076] The evaporator 32 absorbs heat through the expansion and evaporation of low-temperature, low-pressure refrigerant within it, thereby achieving the effect of cooling and dehumidifying the air. The compressor 322 is the power source of the refrigeration cycle, responsible for compressing the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure refrigerant gas. The condenser 31 is the component that cools the refrigerant, cooling the high-temperature, high-pressure refrigerant gas into a high-pressure liquid refrigerant, preparing it for the next round of evaporation. The throttling valve 321 is used to regulate the refrigerant flow rate, throttling and reducing the pressure of the high-pressure liquid refrigerant, transforming it into a low-temperature, low-pressure refrigerant.

[0077] Specifically, the operation of the high-temperature heat pump regeneration module 3 is as follows: the low-temperature, low-pressure refrigerant liquid absorbs heat and evaporates in the evaporator 32, the compressor 322 draws in the low-temperature, low-pressure refrigerant gas and compresses it into a high-temperature, high-pressure refrigerant gas, the high-temperature, high-pressure refrigerant gas enters the condenser 31 to condense and release heat, and obtains a high-pressure liquid refrigerant. After passing through the throttling valve 321 to reduce the pressure into a low-temperature, low-pressure refrigerant liquid, it returns to the evaporator 32 and starts the evaporation and heat absorption process again.

[0078] It is important to emphasize that the compressor 322 in the high-temperature heat pump regeneration module 3 uses a screw compressor or a centrifugal compressor. Compared with a scroll compressor, using a screw compressor or centrifugal compressor can adjust according to changes in the humidity content of the fresh air. The cooling load and heating load of the rotary dehumidifier unit will change, and the high-temperature heat pump regeneration module can also adjust according to the load changes, making it more energy-efficient.

[0079] In this embodiment, the evaporator 32 provides low-temperature chilled water at 7°C, and the condenser 31 provides hot water at 120°C. The high-temperature heat pump regeneration module 3 can be used for both cooling and heating, realizing centralized cooling and heating, thereby overcoming the drawback of traditional heat pump regeneration modules that only provide heating and not cooling.

[0080] In one embodiment, such as Figure 1 As shown, the high-temperature heat pump regeneration module 3 also includes a cold water pump 323, and the first cold coil 13 of the processing side flow path 1 is provided with a first regulating water valve 131; the cold water pump 323 is connected to the evaporator 32 and the first cold coil 13 respectively, and the first regulating water valve 131 is connected to the evaporator 32; the first cold coil 13, the cold water pump 323, the evaporator 32 and the first regulating water valve 131 are connected to form a circulation loop.

[0081] It should be noted that the first cold coil 13 is used to cool and dehumidify the passing air, and the first regulating water valve 131 is used to control the water flow rate of the first cold coil 13. The evaporator 32 of the high-temperature heat pump regeneration module 3 is connected to the first cold coil 13. The evaporator 32 is used to provide low-temperature chilled water to the first cold coil 13, and the first cold coil 13 also returns the heated chilled water to the evaporator 32. That is, the high-temperature heat pump regeneration module 3 provides a cold source and performs heat recovery for the processing side flow path 1.

[0082] Specifically, the evaporator 32 of the high-temperature heat pump regeneration module 3 provides 7°C low-temperature chilled water. The chilled water pump 323 delivers the low-temperature chilled water to the first cooling coil 13. When air flows through the first cooling coil 13, it exchanges heat with the low-temperature chilled water inside the first cooling coil 13, and the air is cooled and dehumidified. The cooled and dehumidified air then enters the next step. After heat exchange, the low-temperature chilled water absorbs heat from the air, and its temperature rises to 12°C. The 12°C warm water is then sent back to the evaporator 32 for further cooling and continued recycling.

[0083] In one embodiment, such as Figure 1 As shown, the second cold coil 15 of the processing side flow path 1 is provided with a second regulating water valve 151; the second regulating water valve 151 is connected to the evaporator 32, and the cold water pump 323 is connected to the evaporator 32 and the second cold coil 15 respectively; the second cold coil 15, the cold water pump 323, the evaporator 32 and the second regulating water valve 151 are connected to form a circulation loop.

[0084] It should be noted that the second cooling coil 15 is used to cool the passing air, and the second regulating water valve 151 is used to control the water flow rate of the second cooling coil 15. The evaporator 32 of the high-temperature heat pump regeneration module 3 is connected to the second cooling coil 15. The evaporator 32 is used to provide low-temperature chilled water to the second cooling coil 15, and the second cooling coil 15 also returns the heated water to the evaporator 32. That is, the high-temperature heat pump regeneration module 3 provides a cold source and performs heat recovery for the processing side flow path 1.

[0085] Specifically, the evaporator 32 of the high-temperature heat pump regeneration module 3 provides low-temperature chilled water at 7°C. The chilled water pump 323 delivers the low-temperature chilled water to the second cooling coil 15. When air flows through the second cooling coil 15, it exchanges heat with the low-temperature chilled water inside the second cooling coil 15, and the air is cooled down. The cooled air then enters the next step. After heat exchange, the low-temperature chilled water absorbs heat from the air, and its temperature rises to 12°C. The 12°C warm water is then sent back to the evaporator 32 for further cooling and continued recycling.

[0086] In one embodiment, such as Figure 1As shown, the third cold coil 25 of the regeneration side flow path 2 is equipped with a third regulating water valve 251; the third regulating water valve 251 is connected to the evaporator 32, and the cold water pump 323 is connected to the evaporator 32 and the third cold coil 25 respectively; the third cold coil 25, the cold water pump 323, the evaporator 32 and the third regulating water valve 251 are connected to form a circulation loop.

[0087] It should be noted that the third cooling coil 25 is used to cool the passing air, and the third regulating water valve 251 is used to control the water flow rate of the third cooling coil 25. The evaporator 32 of the high-temperature heat pump regeneration module 3 is connected to the third cooling coil 25. The evaporator 32 is used to provide low-temperature chilled water to the third cooling coil 25, and the third cooling coil 25 also returns the heated chilled water to the evaporator 32. That is, the high-temperature heat pump regeneration module 3 provides a cold source for the regeneration side flow path 2 and performs heat recovery.

[0088] Specifically, the evaporator 32 of the high-temperature heat pump regeneration module 3 provides 7°C low-temperature chilled water. The chilled water pump 323 delivers the low-temperature chilled water to the third cooling coil 25. When the regeneration exhaust air output from the dehumidification rotor's regeneration zone 24 flows through the third cooling coil 25, it exchanges heat with the low-temperature chilled water inside the third cooling coil 25, thus cooling and dehumidifying the regeneration exhaust air. The cooled and dehumidified regeneration exhaust air then proceeds to the next step. After heat exchange, the low-temperature chilled water absorbs heat from the regeneration exhaust air, raising its temperature to 12°C. The 12°C warm water is then returned to the evaporator 32 for further cooling and reuse.

[0089] In one embodiment, such as Figure 1 As shown, the high-temperature heat pump regeneration module 3 also includes a hot water pump 311, and the first heat coil 12 of the processing side flow path 1 is provided with a fourth regulating water valve 121; the fourth regulating water valve 121 is connected to the condenser 31, and the hot water pump 311 is connected to the condenser 31 and the first heat coil 12 respectively; the first heat coil 12, the hot water pump 311, the condenser 31 and the fourth regulating water valve 121 are connected to form a circulation loop.

[0090] It should be noted that the first heating coil 12 is used to heat the passing air, and the fourth regulating water valve 121 is used to control the water flow rate of the first heating coil 12. The condenser 31 of the high-temperature heat pump regeneration module 3 is connected to the first heating coil 12. The condenser 31 is used to provide high-temperature hot water to the first heating coil 12, and the first heating coil 12 also returns the cooled hot water to the condenser 31. That is, the high-temperature heat pump regeneration module 3 provides a heat source for the processing side flow path 1, and there is no need to add electric heating or steam heating.

[0091] Specifically, when the outdoor air temperature entering the processing side flow path 1 is below 5°C, the incoming air needs to be preheated by the first heat coil 12. At this time, the condenser 31 of the high-temperature heat pump regeneration module 3 provides high-temperature hot water at 120°C. The high-temperature hot water is delivered to the first heat coil 12 by the hot water pump 311. When the air flows through the first heat coil 12, it exchanges heat with the high-temperature hot water in the first heat coil 12, heating the air and achieving the air preheating effect. After the high-temperature hot water absorbs heat from the air, its temperature drops to 110°C. The cooled 110°C water is then sent back to the condenser 31 for reheating and continued to be recycled.

[0092] In one embodiment, such as Figure 1 As shown, the second heat coil 22 of the regeneration side flow path 2 is provided with a fifth regulating water valve 221; the fifth regulating water valve 221 is connected to the condenser 31, and the hot water pump 311 is connected to the condenser 31 and the second heat coil 22 respectively; the second heat coil 22, the hot water pump 311, the condenser 31 and the fifth regulating water valve 221 are connected to form a circulation loop.

[0093] It should be noted that the second heating coil 22 is used to heat the passing air, and the fifth regulating water valve 221 is used to control the water flow rate of the second heating coil 22. The condenser 31 of the high-temperature heat pump regeneration module 3 is connected to the second heating coil 22. The condenser 31 provides high-temperature hot water to the second heating coil 22, and the second heating coil 22 also returns the cooled hot water to the condenser 31. That is, the high-temperature heat pump regeneration module 3 provides a heat source for the regeneration side flow path 2.

[0094] Specifically, the condenser 31 of the high-temperature heat pump regeneration module 3 provides high-temperature hot water at 120°C. The hot water is then pumped to the second heat coil 22 by the hot water pump 311. When air flows through the second heat coil 22, the high-temperature hot water heats the air. The heated air is then used to desorb and regenerate the dehumidifier rotor. The high-temperature hot water, after absorbing heat from the air, cools to 110°C and is then returned to the condenser 31 for reheating and continued recycling.

[0095] In this embodiment, the rotary dehumidification system integrates a high-temperature heat pump regeneration module, which provides 7°C low-temperature chilled water to supply a cooling source to the first and second cooling coils on the treatment side, thereby cooling and dehumidifying the air. This design eliminates the need for a separate chiller unit, thus reducing equipment costs. Simultaneously, the heat generated by the evaporator and condenser of the high-temperature heat pump regeneration module is efficiently utilized, achieving energy recycling and significantly improving the overall energy efficiency of the system, thus optimizing energy utilization efficiency.

[0096] Furthermore, the 7°C low-temperature chilled water provided by the high-temperature heat pump regeneration module can not only meet the cooling requirements of the first and second cold coils on the processing side, but also recover heat from the regeneration exhaust air on the regeneration side through the third cold coil, significantly improving the energy-saving effect of the system and realizing the efficient recycling of energy.

[0097] The high-temperature hot water provided by the high-temperature heat pump regeneration module can provide a heat source for the regeneration side, enabling the dehumidification rotor to desorb and regenerate. On the other hand, when the fresh air temperature on the treatment side is below 5°C, the high-temperature hot water can directly preheat the fresh air without the need for additional electric heating devices or steam heating equipment, effectively reducing energy consumption and equipment costs.

[0098] In summary, the present invention provides a rotary dehumidification system based on high-temperature heat pump regeneration, comprising: a treatment-side flow path, a regeneration-side flow path, and a high-temperature heat pump regeneration module; the high-temperature heat pump regeneration module is connected to both the treatment-side flow path and the regeneration-side flow path; wherein, the high-temperature heat pump regeneration module is connected to a first hot coil, a first cold coil, and a second cold coil of the treatment-side flow path; and the high-temperature heat pump regeneration module is connected to a second hot coil and a third cold coil of the regeneration-side flow path.

[0099] This utility model's rotary dehumidification system integrates a high-temperature heat pump regeneration module. This module can centrally heat or cool both the treatment-side and regeneration-side flow paths, achieving a dual-purpose heating and cooling effect. The 7°C low-temperature chilled water provided by the high-temperature heat pump regeneration module can provide a cold source for the first and second cooling coils on the treatment side, cooling and dehumidifying the air without the need for a separate chiller unit, thus reducing equipment costs. The 7°C low-temperature chilled water provided by the high-temperature heat pump regeneration module can also recover heat from the regeneration exhaust air on the regeneration side through the third cooling coil, significantly improving the system's energy-saving effect and achieving efficient energy recycling. The high-temperature hot water provided by the high-temperature heat pump regeneration module can provide a heat source for the regeneration side, enabling the dehumidification rotor to desorb and regenerate. Furthermore, when the fresh air temperature on the treatment side is below 5°C, the high-temperature hot water can directly preheat the fresh air, eliminating the need for additional electric heating devices or steam heating equipment, effectively reducing energy consumption and equipment costs. The heat generated by the evaporator and condenser of the high-temperature heat pump regeneration module is efficiently utilized, achieving energy circulation and recovery, significantly improving the overall energy efficiency of the system and optimizing energy utilization efficiency. The compressor in the high-temperature heat pump regeneration module uses a screw compressor or centrifugal compressor, which can be adjusted according to changes in the humidity content of the fresh air and the cooling and heating loads of the rotary dehumidifier unit, resulting in greater energy savings. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0100] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A rotary dehumidification system based on high-temperature heat pump regeneration, characterized in that, include: The system includes a processing side flow path (1), a regeneration side flow path (2), and a high-temperature heat pump regeneration module (3); the high-temperature heat pump regeneration module (3) is connected to the processing side flow path (1) and the regeneration side flow path (2) respectively. The high-temperature heat pump regeneration module (3) is connected to the first hot coil (12), the first cold coil (13), and the second cold coil (15) of the processing side flow path, respectively. The high-temperature heat pump regeneration module (3) is connected to the second hot coil (22) and the third cold coil (25) of the regeneration side flow path, respectively.

2. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 1, characterized in that, The processing side flow path (1) includes: a first primary filter (11), a first hot coil (12), a first cold coil (13), a dehumidifying wheel's wheel processing area (14), a second cold coil (15), a processing fan (16), and a medium-efficiency filter (17) arranged sequentially along the processing side airflow direction.

3. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 1, characterized in that, The regeneration side flow path (2) includes: a second primary filter (21), a second heating coil (22), an auxiliary heater (23), a dehumidifying wheel regeneration zone (24), a third cold coil (25), and a regeneration fan (26) arranged sequentially along the regeneration side airflow direction.

4. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 1, characterized in that, The high-temperature heat pump regeneration module (3) includes: an evaporator (32), a condenser (31), a throttle valve (321), and a compressor (322); wherein the throttle valve (321) is connected to the evaporator (32) and the condenser (31) respectively; and the compressor (322) is connected to the evaporator (32) and the condenser (31) respectively.

5. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 4, characterized in that, The high-temperature heat pump regeneration module (3) also includes a cold water pump (323), and the first cold coil (13) of the processing side flow path (1) is provided with a first regulating water valve (131); the cold water pump (323) is connected to the evaporator (32) and the first cold coil (13) respectively, and the first regulating water valve (131) is connected to the evaporator (32); the first cold coil (13), the cold water pump (323), the evaporator (32) and the first regulating water valve (131) are connected to form a circulation loop.

6. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 5, characterized in that, The second cold coil (15) of the processing side flow path (1) is provided with a second regulating water valve (151); the second regulating water valve (151) is connected to the evaporator (32), and the cold water pump (323) is connected to the evaporator (32) and the second cold coil (15) respectively; the second cold coil (15), the cold water pump (323), the evaporator (32) and the second regulating water valve (151) are connected to form a circulation loop.

7. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 5, characterized in that, The third cold coil (25) of the regeneration side flow path (2) is equipped with a third regulating water valve (251); the third regulating water valve (251) is connected to the evaporator (32), and the cold water pump (323) is connected to the evaporator (32) and the third cold coil (25) respectively; the third cold coil (25), the cold water pump (323), the evaporator (32) and the third regulating water valve (251) are connected to form a circulation loop.

8. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 4, characterized in that, The high-temperature heat pump regeneration module (3) also includes a hot water pump (311), and the first heat coil (12) of the processing side flow path (1) is provided with a fourth regulating water valve (121); the fourth regulating water valve (121) is connected to the condenser (31), and the hot water pump (311) is connected to the condenser (31) and the first heat coil (12) respectively; the first heat coil (12), the hot water pump (311), the condenser (31) and the fourth regulating water valve (121) are connected to form a circulation loop.

9. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 8, characterized in that, The second heat coil (22) of the regeneration side flow path (2) is provided with a fifth regulating water valve (221); the fifth regulating water valve (221) is connected to the condenser (31), and the hot water pump (311) is connected to the condenser (31) and the second heat coil (22) respectively; the second heat coil (22), the hot water pump (311), the condenser (31) and the fifth regulating water valve (221) are connected to form a circulation loop.

10. The rotary dehumidification system based on high-temperature heat pump regeneration according to claim 4, characterized in that, The compressor (322) is a screw compressor or a centrifugal compressor.

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