Energy-saving dehumidification system based on phase change PVT technology

Abstract

The utility model relates to air dehumidification field, concretely is a kind of energy-saving dehumidification system based on phase change PVT technology, and dehumidification system includes rotary dehumidifier, and the processing section of rotary dehumidifier extracts external space and is injected target dehumidification space after dehumidification, and the regeneration section of rotary dehumidifier extracts external air and restores the dehumidification capacity of rotary dehumidifier after heating;Its characterized in that, along gas conveying direction, front regeneration fan, heat exchanger, electric auxiliary heater, regeneration section and rear regeneration fan are sequentially arranged, and heat exchanger is connected with the heat storage tank in heat supply system and exchanges heat;Heat supply system includes photovoltaic panel and the solar energy evaporator of setting with the back of photovoltaic panel, and solar energy evaporator, compressor, condenser are sequentially communicated to form refrigerant circuit, and the cooling water in condenser is communicated with heat storage tank to store heat energy.The utility model keeps production environment humidity control, and greatly reduces the energy consumption of dehumidification system.

Description

Technical Field

[0001] This utility model relates to the field of air dehumidification, specifically an energy-saving dehumidification system based on phase change PVT technology. Background Technology

[0002] In the production of certain process products, humidity requirements are extremely high. For example, in the lithium battery manufacturing industry, if the air humidity in the production workshop is too high, moisture will penetrate into the materials and the inside of the battery, causing quality problems such as decreased battery performance, corrosion, leakage, and bulging, affecting the consistency between battery packs, and in severe cases, leading to the scrapping of battery products. Therefore, the humidity in battery production workshops is strictly controlled. To achieve strict control over the humidity in the production workshop, rotary dehumidifiers are usually used for dehumidification. The core functional modules of a rotary dehumidifier include a treatment section and a regeneration section. The treatment section is equipped with moisture-absorbing materials such as silica gel and molecular sieves to absorb moisture from the air and dehumidify and dry the humid air. The regeneration section heats the outside air to a high temperature using a heat source to form regeneration air. The high-temperature regeneration air desorbs and carries away the moisture absorbed by the rotary dehumidifier, thereby restoring the dehumidifier's moisture absorption capacity.

[0003] For large production workshops, higher-powered rotary dehumidifiers are often required for dehumidification. To ensure a stable heat supply for these dehumidifiers, steam boilers and piping systems are typically installed. Steam serves as a stable heat source for the regeneration section, or burners are used to directly or indirectly heat the regeneration air by burning fuels such as natural gas or diesel. However, using steam boilers or gas / oil burners as heat sources inevitably leads to high energy consumption. Therefore, reducing the energy consumption of traditional dehumidification systems is a pressing technical challenge that needs to be addressed. Utility Model Content

[0004] To avoid and overcome the technical problems existing in the prior art, this utility model provides an energy-saving dehumidification system based on phase change PVT technology. This utility model significantly reduces the energy consumption of the dehumidification system while maintaining humidity control in the production environment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An energy-saving dehumidification system based on phase change PVT technology is disclosed. The dehumidification system includes a rotary dehumidifier. The processing section of the rotary dehumidifier draws in external air, dehumidifies it, and then injects it into the target dehumidification space. The regeneration section of the rotary dehumidifier draws in external air, heats it, and restores the dehumidification capacity of the rotary dehumidifier. The system is characterized in that, along the gas conveying direction, a pre-regeneration fan, a heat exchanger, an electric auxiliary heater, a regeneration section, and a post-regeneration fan are arranged in sequence. The heat exchanger is connected to a heat storage tank in the heating system for heat exchange.

[0007] The heating system includes photovoltaic panels and a solar evaporator installed on the back of the photovoltaic panels. The solar evaporator, compressor, and condenser are connected in sequence to form a refrigerant circuit. The cooling water in the condenser is connected to a heat storage tank to store heat energy.

[0008] As a further embodiment of this utility model: a fan unit is provided at both the upstream and downstream ends of the processing section. The fan unit includes a processing fan, a surface cooler, and a filter arranged sequentially in the direction away from the processing section. The target dehumidification space is connected to the air outlet of the processing section through the fan unit.

[0009] As a further embodiment of this utility model: the two surface coolers are connected to the water collection tank in the water circulation system to recover condensate. A portion of the condensate in the water collection tank is used as a cold source and transported to the refrigeration equipment. The refrigeration equipment cools the target space through the terminal air conditioner.

[0010] As a further improvement of this utility model, the hot water in the heat storage tank is used as a heat source and connected to the terminal air conditioner to achieve heating.

[0011] As a further improvement of this utility model, a portion of the condensate in the water collection tank is connected to the heat storage tank to replenish the heat storage tank.

[0012] As a further improvement of this invention, a throttling valve is provided between the condenser and the solar evaporator to control the refrigerant flow rate.

[0013] As a further improvement of this utility model: the electrical energy output by the photovoltaic panel is output to the energy storage power station through the inverter, and the energy storage power station supplies power to the power distribution module of the compressor and the dehumidification system.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes photovoltaic panels to generate electricity while simultaneously using the solar evaporator on the back to absorb excess solar heat, providing heat for the dehumidification system. This improves photovoltaic efficiency and generates heat energy, achieving "dual use of one device." The solar evaporator, along with the compressor and condenser, forms a heat pump cycle, storing heat in a heat storage tank to provide a stable heat source for the regeneration section. With the assistance of an electric auxiliary heater, it provides a stable heat supply to the regenerated air, maintaining humidity control in the production environment while significantly reducing the energy consumption of the dehumidification system. After the regenerated air is heated by heat exchange with the heat storage tank through the heat exchanger, it is then precisely heated by the electric auxiliary heater, forming a cascade heating optimization that reduces external energy consumption.

[0016] 2. The condensate generated by the surface cooler in the processing section of this utility model is recovered by the water collection tank. Part of it is used as a cold source to supply cooling to the refrigeration equipment and to cool the workshop through the terminal air conditioner, thereby reducing the load on the independent refrigeration system. The hot water in the heat storage tank is not only used for regeneration heating, but can also be used to heat the workshop through the terminal air conditioner, realizing "one source for two uses", achieving combined cooling and heating, and improving the overall energy efficiency of the system.

[0017] 3. The condensate from the water collection tank of this utility model can be replenished to the heat storage tank. The water circulation system realizes a closed-loop process of condensate → cooling / water replenishment → re-condensation, reducing dependence on external water sources and reducing water consumption.

[0018] 4. The electrical energy generated by the photovoltaic panel of this utility model is stored in the energy storage power station, which prioritizes power supply to the compressor and power distribution module, reducing the dependence on the power grid; the heat storage tank can store excess heat to ensure the heating stability of the regeneration section on cloudy or rainy days or at night; the electric auxiliary heater serves as a backup to ensure continuous operation under extreme weather conditions; and the operation of the PVT power generation and dehumidification system and the energy storage strategy are dynamically adjusted according to factors such as light intensity and humidity load to maximize energy efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] In the picture:

[0021] 1. Dehumidification system; 11. Rotary dehumidifier; 111. Processing section; 112. Regeneration section;

[0022] 12. Target dehumidification space; 131. Processing fan; 132. Cooler; 133. Filter;

[0023] 14. Pre-regenerating air fan; 15. Heat exchanger; 16. Electric auxiliary heater;

[0024] 17. Post-regenerative fan; 18. Power distribution module;

[0025] 2. Heating system; 21. Photovoltaic panel; 22. Solar evaporator; 23. Compressor;

[0026] 24. Condenser; 25. Throttling valve; 26. Thermal storage tank; 27. Inverter; 28. Energy storage power station;

[0027] 3. Water circulation system; 31. Water collection tank; 32. Refrigeration equipment;

[0028] 33. Terminal air conditioner; 34. Target cooling space. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 In this embodiment of the present invention, an energy-saving dehumidification system based on phase change PVT technology includes a dehumidification system 1, a heating system 2, and a water circulation system 3.

[0031] The dehumidification system 1 includes a rotary dehumidifier 11. The processing section 111 of the rotary dehumidifier 11 draws in external air, dehumidifies it, and then injects it into the target dehumidification space 12. The regeneration section 112 of the rotary dehumidifier 11 draws in external air, heats it, and restores the dehumidification capacity of the rotary dehumidifier 11. The area ratio of the processing section 111 to the regeneration section 112 is preferably nine to one.

[0032] Fan units are provided at both the upstream and downstream ends of the processing section 111. The fan units include a processing fan 131, a surface cooler 132, and a filter 133 arranged sequentially in the direction away from the processing section 111. The target dehumidification space 12 is connected to the air outlet of the processing section 111 through the fan units.

[0033] After the processing fan 131 starts, it draws in outside air, which is then filtered by the filter 133 at the upstream end of the processing section 111 to intercept large particles (such as dust, hair, fibers, etc.) ≥5μm, preventing them from entering the rotary dehumidifier 11 and causing blockage. The filtered air enters the surface cooler 132 on the upstream air inlet side of the rotary dehumidifier 11, where the temperature of the air is reduced by cold water circulation, so that the water vapor in the air reaches a saturated state, creating low-temperature conditions for the subsequent efficient adsorption of moisture by the rotor. The air treated by the surface cooler 132 on the air inlet side enters the processing section, where the humidity is reduced. Then it passes through the surface cooler 132 on the downstream outlet side of the processing section 111, where cold water circulation cools the high-temperature dry air after dehumidification by the rotor, ensuring that the supply air temperature meets the process requirements. Finally, the air enters the filter 133 at the downstream end of the rotary dehumidifier 11, where residual dust, particulate matter, and trace fibers that may fall off the rotor are intercepted, ensuring that the output air meets the cleanliness requirements, and finally enters the target dehumidification space 12.

[0034] Along the gas transport direction, the pre-regeneration fan 14, heat exchanger 15, electric auxiliary heater 16, regeneration section 112, and post-regeneration fan 17 are arranged sequentially. The heat exchanger 15 is connected to and exchanges heat with the heat storage tank 26, thus using the heat storage tank 26 as the heat source for the dehumidification system 1, absorbing heat from within the tank. The pre-regeneration fan 14 draws in either indoor or outdoor air. After passing through the heat exchanger 15, the air exchanges heat with the heat storage tank 26 via air-cooled / water-cooled / heat pipe media, and then enters the regeneration section 112 after passing through the electric auxiliary heater 16. The electric auxiliary heater 16 precisely regulates the regeneration temperature through a temperature control system. When solar heating is insufficient, the electric auxiliary heater 16 provides additional heat to the dehumidification rotor, ensuring the effectiveness of the dehumidification rotor regeneration.

[0035] The dehumidification system 1 also includes a power distribution module 18, which supplies power to the electrical appliances in the dehumidification system 1.

[0036] The heating system 2 includes a photovoltaic panel 21 and a solar evaporator 22 disposed on the back of the photovoltaic panel 21. The solar evaporator 22, compressor 23, and condenser 24 are connected in sequence to form a refrigerant circuit. The cooling water in the condenser 24 is connected to a heat storage tank 26 to store heat energy. A throttling valve 25 is provided between the condenser 24 and the solar evaporator 22 to control the refrigerant flow.

[0037] Photovoltaic panels 21 are typically installed on the workshop ceiling, converting solar energy into direct current (DC) electricity. Solar evaporators 22 absorb heat from the surrounding environment through a phase change in the refrigerant, thereby lowering the temperature of the photovoltaic panels 21 and completing the refrigerant heat absorption process in the refrigerant circuit. This heat absorption by the solar evaporators 22, while reducing the temperature of the photovoltaic panels 21, also improves power generation efficiency. Compressor 23 compresses the gaseous and / or liquid refrigerant within the solar evaporators 22, forming liquid refrigerant, which is then transported to the condenser 24. The condenser 24 cools the high-temperature, high-pressure gaseous refrigerant, causing it to release heat and liquefy, completing the gas-to-liquid phase change process. This process transfers the heat carried by the refrigerant to the cooling water in the condenser 24, heating the water and maintaining the heat balance of the refrigeration system. The heated cooling water from the condenser 24 then enters the heat storage tank 26 for heat storage. The throttle valve 25, through its opening adjustment, converts the high-pressure, room-temperature liquid refrigerant from the condenser 24 into a low-temperature, low-pressure liquid / gas mixed refrigerant. This creates conditions for heat absorption and evaporation within the solar evaporator 22 and maintains the pressure gradient required for the refrigeration cycle, thus forming a complete refrigerant cycle. The heat storage tank 26 stores hot water from the condenser 24, utilizing the density difference between the hot and cold water to store heat in layers. The hot water is located at the top of the tank, and the cold water at the bottom, forming a transition layer in between, achieving heat energy storage and release.

[0038] The DC power output from the photovoltaic panel 21 is converted into 220V / 380V AC power by the inverter 27 and then output to the energy storage station 28 for storage. The energy storage station 28 supplies power to the compressor 23 and the power distribution module 18 of the dehumidification system 1.

[0039] The water circulation system 3 includes a water collection tank 31, which collects condensate discharged from the surface cooler 132. A portion of the condensate in the water collection tank 31 is supplied as a cold source to the refrigeration equipment 32, which then cools the target cooling space 34 via a terminal air conditioner 33. The condensate collected in the water collection tank 31 is clean, softened water, which can be directly connected to the heat storage tank 26 to replenish its water supply. Simultaneously, this portion of condensate has a low temperature, and its cooling capacity can be reused as a cold source for the terminal air conditioner 33. When the cooling capacity is insufficient, it is supplemented by the operation of the refrigeration equipment 32, ultimately achieving cooling through the terminal air conditioner 33. Hot water in the heat storage tank 26 is connected to the terminal air conditioner 33 as a heat source to provide heating, enabling the terminal air conditioner 33 to switch between hot and cold water supply.

[0040] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0041] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. An energy-saving dehumidification system based on phase change PVT technology, the dehumidification system (1) comprising a rotary dehumidifier (11), wherein the processing section (111) of the rotary dehumidifier (11) draws in external air, dehumidifies it, and then injects it into the target dehumidification space (12); and the regeneration section (112) of the rotary dehumidifier (11) draws in external air, heats it, and restores the dehumidification capacity of the rotary dehumidifier (11); characterized in that, Along the gas transport direction, the pre-regeneration fan (14), heat exchanger (15), electric auxiliary heater (16), regeneration section (112) and post-regeneration fan (17) are arranged in sequence. The heat exchanger (15) is connected to the heat storage tank (26) in the heating system (2) and exchanges heat. The heating system (2) includes a photovoltaic panel (21) and a solar evaporator (22) installed on the back of the photovoltaic panel (21). The solar evaporator (22), compressor (23), and condenser (24) are connected in sequence to form a refrigerant circuit. The cooling water in the condenser (24) is connected to the heat storage tank (26) to store heat energy.

2. The energy-saving dehumidification system based on phase change PVT technology according to claim 1, characterized in that, The upstream and downstream ends of the processing section (111) are equipped with fan units. The fan units include a processing fan (131), a surface cooler (132) and a filter (133) arranged in sequence along the direction away from the processing section (111). The target dehumidification space (12) is connected to the air outlet of the processing section (111) through the fan units.

3. The energy-saving dehumidification system based on phase change PVT technology according to claim 2, characterized in that, The two surface coolers (132) are connected to the water collection tank (31) in the water circulation system (3) to recover condensate. A portion of the condensate in the water collection tank (31) is transported to the refrigeration equipment (32) as a cold source. The refrigeration equipment (32) cools the target refrigeration space (34) through the terminal air conditioner (33).

4. The energy-saving dehumidification system based on phase change PVT technology according to claim 3, characterized in that, The hot water in the heat storage tank (26) is used as a heat source and connected to the terminal air conditioner (33) to achieve heating.

5. An energy-saving dehumidification system based on phase change PVT technology according to claim 3 or 4, characterized in that, A portion of the condensate in the water collection tank (31) is connected to the heat storage tank (26) to replenish the heat storage tank (26).

6. An energy-saving dehumidification system based on phase change PVT technology according to any one of claims 1 to 3, characterized in that, A throttling valve (25) is provided between the condenser (24) and the solar evaporator (22) to control the refrigerant flow.

7. An energy-saving dehumidification system based on phase change PVT technology according to any one of claims 1 to 3, characterized in that, The electrical energy output from the photovoltaic panel (21) is transmitted to the energy storage station (28) via the inverter (27). The energy storage station (28) supplies power to the compressor (23) and the power distribution module (18) of the dehumidification system (1).

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