Building temperature and humidity regulation and air purification system and method based on coupling of PV / T Teflon wall and M-cycle

Abstract

The invention discloses a building temperature and humidity regulation and air purification system and method based on coupling of a PV / T Teflon wall and M-cycle, and belongs to the technical field of indoor temperature and humidity regulation and air purification. The problem that in the prior art, a system architecture for deeply coupling an air flowing path with a dehumidification module and a purification module does not exist is solved. The system comprises an M-cycle air treatment module, an air purification module and a control module, the PV / T Telantian wall air treatment module comprises a photovoltaic module arranged on a wall body on the light facing side, a gas flow channel is arranged between the photovoltaic module and the wall body, the gas flow channel communicates with an air inlet, an air indoor outlet and an air outdoor outlet, a wall body heat exchange pipeline is arranged on the side, close to the interior of the air flow channel, of the photovoltaic module, and the wall body heat exchange pipeline is communicated with the air indoor outlet and the air outdoor outlet. A formaldehyde decomposition mechanism is further arranged in the gas flow channel; a roof PCM heat exchange module; a fluid storage and regulation module; and an electric energy storage and regulation module. According to the invention, more comprehensive and more sufficient utilization of solar energy is realized, and indoor temperature and humidity regulation and air purification are synchronously realized.

Description

Technical Field

[0001] This invention belongs to the field of indoor temperature and humidity control and air purification technology, specifically relating to a building temperature and humidity control and air purification system and method with PV / T Transylvanian wall coupled M-cycle. Background Technology

[0002] The Trombe wall, a classic passive solar heating structure, absorbs solar radiation and slowly releases heat through a high-heat-capacity wall to provide heating in winter. Its thermal performance optimization has been extensively studied, including integrating phase change materials (PCMs) to enhance heat storage capacity and using double-glazed windows and shading curtains to control overheating in summer. Furthermore, the coupling system of photovoltaic / thermal integration (PV / T) and the Trombe wall further enables combined power generation and heat production.

[0003] While existing PV / T-Trombbe wall systems can effectively regulate indoor temperature, they lack the ability to actively intervene in humidity control and air quality purification. Excessive humidity in built environments easily leads to condensation, mold, and microbial growth, and traditional ventilation methods cannot achieve simultaneous heat recovery and dehumidification, nor do they offer purification capabilities. Current research largely focuses on optimizing heat conduction and convection, and has not yet constructed a system architecture that deeply couples airflow paths with dehumidification and purification modules. Summary of the Invention

[0004] To address the issue that existing technologies often focus on optimizing heat conduction and convection, but have not yet constructed a system architecture that deeply couples airflow paths with dehumidification and purification modules, this invention provides a PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system and method.

[0005] The technical solution adopted in this invention is as follows:

[0006] The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system includes:

[0007] The M-cycle air handling module is used to regulate outdoor air to the required humidity and temperature before introducing it into the room.

[0008] The PV / T Transylvanian wall air handling module includes a photovoltaic module installed on the light-facing side of the wall. A gas flow channel is provided between the photovoltaic module and the wall. The gas flow channel is connected to an air inlet, an indoor air outlet, and an outdoor air outlet. A wall heat exchange pipe is provided on the side of the photovoltaic module closest to the air flow channel. A formaldehyde decomposition mechanism is also provided in the gas flow channel.

[0009] The rooftop PCM heat exchange module is used to receive solar energy from the roof and convert it into heat energy.

[0010] The fluid storage and regulation module is used to receive and store the fluids used by the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module, and to regulate the fluids to the required temperature before delivering them to the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module.

[0011] The energy storage and control module is electrically connected to the M-cycle air handling module and the PV / T Transylvanian wall air handling module, and is used to receive, store and output the electrical energy generated by the photovoltaic modules.

[0012] By adopting this technical solution, the solar energy can be received and utilized more comprehensively through the roof PCM heat exchange module and the PV / T Transylvanian wall air handling module. The solar energy is converted into heat energy and electrical energy. The heat energy can provide hot water for daily life, and can also be used to regulate indoor temperature through the M-cycle air handling module and air flow channel. It can also help purify the air (decompose formaldehyde). The electrical energy can be used to supply the formaldehyde decomposition mechanism, the M-cycle air handling module, etc., thereby realizing a more comprehensive and fuller utilization of solar energy, and simultaneously achieving indoor temperature and humidity regulation and air purification.

[0013] Preferably, several PCM cooling elements are provided on the side of the photovoltaic module near the gas flow channel. The PCM cooling elements are arranged at intervals, and each PCM cooling element includes a PCM layer and an insulation layer. The PCM layer is located close to the photovoltaic module, and the wall heat exchange pipeline is located in the area of ​​the photovoltaic module where no PCM cooling elements are provided.

[0014] After adopting this technical solution, the PCM cooling component can better receive the heat energy generated by the photovoltaic module.

[0015] Preferably, the contact surface between the PCM layer and the insulation layer is parabolic, and the formula for calculating the arc Y of the parabola is Y=(56x-150). 1 / n , where n=2; the relationship between the top thickness L2 and the bottom thickness L1 of the PCM layer is L1 / L2=0.3.

[0016] By adopting this technical solution and setting the PCM layer to an asymmetric parabolic PCM encapsulation design, the temperature reduction effect of photovoltaic modules can be effectively improved, thereby effectively optimizing power generation performance.

[0017] Preferably, several of the PCM cooling elements are arranged in a rectangular array on the back of the photovoltaic module, and the wall heat exchange pipe is connected to the area on the back of the photovoltaic module where no PCM cooling elements are installed, and is in contact with the adjacent PCM cooling elements.

[0018] By adopting this technical solution, the PCM refrigeration components can be arranged in discrete blocks, thereby reducing equipment costs and significantly lowering the initial investment in the system while ensuring purification and cooling effects.

[0019] Preferably, an indoor ventilation valve is installed at the indoor air outlet, and an outdoor ventilation valve is installed at the outdoor air outlet.

[0020] After adopting this technical solution, the indoor ventilation valve is opened and the outdoor ventilation valve is closed in winter, and the air circulates indoors, ensuring the heating effect; in summer, the indoor ventilation valve is closed and the outdoor ventilation valve is opened, and the air is discharged through the outdoor ventilation valve, using the "chimney effect" for natural ventilation and cooling.

[0021] Preferably, the roof PCM heat exchange module includes a PCM encapsulation plate, the PCM encapsulation plate includes an encapsulation shell, and a phase change material with a phase change temperature of 40-50℃ is disposed inside the encapsulation shell;

[0022] The encapsulation housing is also connected to a roof heat exchange pipeline, which is connected to a fluid storage and control module.

[0023] The roof heat exchange pipes are connected to the phase change material via W-shaped fins.

[0024] After adopting this technical solution, the phase change material melts when heated during the day, and the cold flow passes through the roof heat exchange pipes at night. The heat exchange between the cold flow and the phase change material is achieved through W-shaped fins. The W-shaped fins will enhance the heat exchange effect and extract as much heat as possible from the PCM.

[0025] Preferably, the formaldehyde decomposition mechanism includes a formaldehyde thermal catalytic decomposition plate connected to the wall heat exchange pipes and / or photovoltaic modules, with the working surface of the formaldehyde thermal catalytic decomposition plate facing the gas flow channel.

[0026] The formaldehyde decomposition mechanism also includes an electrolytic formaldehyde generator installed in the gas flow channel, which is electrically connected to the energy storage and control module.

[0027] With this technical solution, the formaldehyde thermal catalytic decomposition plate receives the heat energy generated by the photovoltaic module to decompose formaldehyde, while the formaldehyde electrolysis device can work by using the electrical energy generated by the photovoltaic module and stored in the electrical energy storage and control module. Through the formaldehyde thermal catalytic decomposition plate and the formaldehyde electrolysis device, indoor formaldehyde can be decomposed more thoroughly.

[0028] Preferably, the fluid storage and control module includes a first water tank and a second water tank;

[0029] The first water tank is connected to a first heat exchanger. One end of the cold flow channel of the first heat exchanger is connected to the first water tank, and the other end of the cold flow channel is connected to the cold flow inlet of the wall heat exchange pipeline and the cold flow inlet of the roof PCM heat exchange module. A first pump valve is installed on the pipeline connecting the cold flow channel of the first heat exchanger to the first water tank. A second pump valve is also installed on the pipeline connecting the cold flow channel of the first water tank to the cold flow inlet of the roof PCM heat exchange module. The first water tank is also connected to the M-cycle air handling module.

[0030] The second water tank is connected to a second heat exchanger. The heat flow outlet of the wall heat exchange pipe is connected to the heat flow channel of the second heat exchanger. The heat flow outlet of the roof PCM heat exchange module is connected to the heat flow channel of the second heat exchanger. The second water tank is connected to indoor water equipment. The second water tank is also connected to an external water source. One end of the second water tank is connected to the cold flow channel of the second heat exchanger. A seventh pump valve is installed on the pipe connecting the second water tank and the cold flow channel of the second heat exchanger. The other end of the cold flow channel of the second heat exchanger is connected to the heat flow channel of the first heat exchanger. The heat flow channel of the first heat exchanger is connected to the first water tank.

[0031] After adopting this technical solution, two water tanks are set up. The two water tanks can provide water (heat exchange fluid) to the M-cycle air handling module, PV / T Transylvania wall air handling module and roof PCM heat exchange module. At the same time, they can also accept and store the heat exchange fluid after the heat exchange is heated up, which can be used as domestic water, realizing the full utilization of thermal energy.

[0032] Preferably, a feedback system is also included, which includes a temperature and humidity sensor disposed in the gas flow channel. The temperature and humidity sensor is electrically connected to a controller, and the M-cycle air handling module and the fluid storage and control module are both electrically connected to the controller.

[0033] With this technical solution, the temperature and humidity sensor can detect the temperature and humidity of the air entering the gas flow channel, and then through the coordinated control of the M-cycle air handling module and the fluid storage and regulation module, the indoor temperature and humidity can be automatically regulated.

[0034] Preferably, the M-cycle air handling module includes an air inlet duct connected to the room. A precooler, a dehumidification mechanism, an evaporative cooling mechanism, a spray humidification mechanism, and an air inlet fan for exhausting air into the room are sequentially arranged on the air inlet duct. A third pump valve is also provided on the air inlet duct connected to the air inlet fan and the spray humidification mechanism.

[0035] The spray humidification mechanism is connected to the fluid storage and control module;

[0036] The dehumidification mechanism is a regenerative rotary dehumidifier, which includes a rotary dehumidification zone and a rotary regeneration zone. The rotary regeneration zone is connected to the fluid storage and control module via a steam pipeline. A steam generating mechanism is installed on the steam pipeline. The rotary regeneration zone is also connected to an exhaust pipeline, on which a second exhaust fan is installed. The steam generating mechanism includes a third heat exchanger and an electric heater arranged in sequence. The third heat exchanger is located close to the fluid storage and control module.

[0037] The spray humidification mechanism includes a water collection chamber located below the spray chamber. The water collection chamber is connected to the spray nozzles of the spray chamber via a circulation pipeline, and a fourth pump valve is installed on the circulation pipeline.

[0038] The evaporative cooling mechanism includes a fifth pump valve.

[0039] Preferably, the energy storage and control module includes a battery, which is electrically connected to the photovoltaic module. The battery is also electrically connected via a circuit to indoor electrical equipment, a formaldehyde decomposition mechanism, a fluid storage and control module, and an M-cycle air treatment module. An inverter is also provided on the circuit.

[0040] A building temperature and humidity control and air purification method, based on the aforementioned PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system, includes: an M-cycle air handling module, a PV / T Transylvanian wall air handling module, a roof PCM heat exchange module, a fluid storage and control module, and an energy storage and control module operating synchronously. The PV / T Transylvanian wall air handling module continuously receives solar energy and converts it into heat and electricity through photovoltaic modules. It receives heat energy through wall heat exchange pipes and recovers the heat energy for use in the fluid storage and control module through fluid within the wall heat exchange pipes. The energy storage and control module... It receives and utilizes the electrical energy generated by photovoltaic modules; the rooftop PCM heat exchange module receives solar energy from the roof and converts it into heat energy, which is then recycled to the fluid storage and regulation module; and it executes winter operation mode and summer operation mode respectively in summer and winter. The summer operation mode includes: outside air is regulated to a suitable humidity and temperature by the M-cycle air handling module before entering the room, and indoor air enters the gas flow channel of the PV / T Transylvanian wall air handling module through the air inlet, where the air is purified by the formaldehyde decomposition mechanism, and the purified air is discharged to the outside through the outdoor air outlet.

[0041] The winter operation mode includes: outside air is regulated to a suitable humidity and temperature by the M-cycle air handling module before entering the room; indoor air enters the gas flow channel of the PV / T Transylvania wall air handling module through the air inlet, and is purified by the formaldehyde decomposition mechanism; the purified air is then discharged into the room through the indoor air outlet.

[0042] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0043] 1. Electric-Heat Dual-Effect Air Purification

[0044] By integrating CuO / Cu / Ni three-layer porous electrocatalytic plates and thermal catalytic layers within the Transb wall, the building achieves year-round synergistic electrothermal air purification. The summer and winter operating conditions are described below: (1) Winter operating condition: Active purification and heating synergy. With only 70°C of residual heat required, the formaldehyde conversion rate reaches 90%, and the clean air delivery rate (CADR) ranges from 42.5 to 81.6 m³ / h, which is 20.9% higher than that of ordinary structures. (2) Summer operating condition: High-efficiency cooling and electric power synergy. In summer, the outdoor ventilation valve is opened to utilize the "chimney effect" for natural ventilation and cooling. At the same time, the system absorbs heat through segmented discrete PCM encapsulation and works with the M-cycle system for precise temperature control.

[0045] 2. Rooftop PCM heat exchange modules enhance the overall utilization of solar energy.

[0046] A PCM heat exchange system is installed on the roof to make greater use of solar energy. At night, the heat released by the condensation of PCM is collected and stored in the first water tank for later use. "W"-shaped fins are used to effectively enhance heat exchange.

[0047] 3. Indoor temperature and humidity control

[0048] The M-cycle coupled PV / T system provides the technical foundation, utilizes sensors to detect indoor air temperature and humidity quality, provides timely feedback, and makes real-time and precise adjustments according to seasonal needs to create a comfortable living environment.

[0049] 4. By using rooftop PCM heat exchange modules and PV / T Transylvanian wall air handling modules, solar energy can be received and utilized more comprehensively, converting it into heat and electricity. The heat energy can provide hot water for daily life, and can also be used to regulate indoor temperature and humidity through M-cycle air handling modules and air ducts, as well as to help purify the air (decompose formaldehyde). The electricity can be used to power formaldehyde decomposition mechanisms, M-cycle air handling modules, etc., thus achieving more comprehensive and efficient utilization of solar energy, while simultaneously achieving indoor temperature and humidity regulation and air purification. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of the PV / T Transylvanian wall air handling module in the summer and winter operation modes of the present invention;

[0052] Figure 3 This is a schematic diagram of the structure of a single PCM cooling element in this invention;

[0053] Figure 4 This is a schematic diagram of the distribution structure of the PCM cooling component in this invention;

[0054] Figure 5 This is a schematic diagram of the roof PCM heat exchange module in this invention;

[0055] Figure 6 This is the control logic diagram of the M-cycle air handling module in this invention;

[0056] Among them, 101-first glass cover plate, 102-photovoltaic panel, 103-wall heat exchange pipes, 104-PCM refrigeration components, 105-air inlet, 106-formaldehyde thermocatalytic decomposition plate, 107-indoor air outlet, 108-outdoor air outlet, 201-battery, 202-inverter, 301-roof heat exchange pipes, 302-W-shaped fins, 303-phase change material, 304-second glass cover plate, 401-first heat exchanger, 402-first pump valve 403-First water tank, 404-Second pump valve, 405-Second water tank, 406-Second heat exchanger, 407-Seventh pump valve, 501-Air inlet duct, 502-Precooler, 503-Regenerative rotary dehumidifier, 504-Fifth pump valve, 505-Spray humidification mechanism, 506-Fourth pump valve, 507-Third pump valve, 508-Air inlet fan, 509-Third heat exchanger, 510-Electric heater, 511-Evaporative cooling mechanism, 6-Temperature and humidity sensor. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0058] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0059] like Figure 1 As shown, the PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system, it should be noted that in this embodiment, all areas requiring heat exchange are made of thermally conductive materials (such as aluminum plates), including:

[0060] The M-cycle air handling module is used to regulate outdoor air to the required humidity and temperature before introducing it into the room. In this embodiment, the M-cycle air handling module includes an air inlet duct 501 connected to the room. The air inlet duct 501 is sequentially equipped with a precooler 502, a dehumidification mechanism, an evaporative cooling mechanism 511, a spray humidification mechanism 505, and an air inlet fan 508 for exhausting air into the room. The air inlet fan 508 is connected to the spray humidification mechanism 505, and a third pump valve 507 is also provided on the air inlet duct 501.

[0061] The spray humidification mechanism 505 is connected to the first water tank 403, and water can be supplied to the spray humidification mechanism 505 through the first water tank 403.

[0062] The dehumidification mechanism is a regenerative rotary dehumidifier 503, which includes a rotary dehumidification zone and a rotary regeneration zone. The rotary regeneration zone is connected to a first water tank 403 via a steam pipe, on which a steam generating mechanism is installed. The rotary regeneration zone is also connected to an exhaust pipe, on which a second exhaust fan is installed. The steam generating mechanism includes a third heat exchanger 509 and an electric heater 510 arranged sequentially. The third heat exchanger 509 is positioned close to the first water tank 403. In this embodiment, the desiccant is silica gel, and its regeneration temperature is 80-120℃. The water supplied from the first water tank 403 can be converted into steam through a steam generation mechanism. The steam enters the rotary regeneration zone to regenerate the desiccant. In this embodiment, the water in the first water tank 403 is at a temperature of about 95℃ after heat exchange with the third heat exchanger 509. Then, after being heated by the electric heater 510, it becomes steam at a temperature of about 110℃. The steam enters the rotary regeneration zone through the exhaust pipe to regenerate the desiccant.

[0063] The spray humidification mechanism 505 includes a water collection chamber located below the spray chamber. The water collection chamber is connected to the spray nozzles of the spray chamber via a circulation pipeline, on which a fourth pump valve 506 is installed. The water collection chamber also has a liquid inlet and a liquid outlet. The liquid inlet is connected to a first water tank 403 via a pipeline, on which a sixth pump valve is installed. The liquid outlet is connected to the first water tank 403 via a pipeline. Preferably, the water in the spray humidification mechanism 505 is recycled. After the water sprayed from the spray nozzles of the spray humidification mechanism 505 exchanges heat and moisture with the air, it flows into the lower water collection chamber under gravity. After being pressurized by the fourth pump valve 506, it is sprayed out again from the upper part through the spray nozzles, while the water in the first water tank 403 is used for replenishment. After using the water in the first water tank 403 as spray water, heat exchange can be achieved through the contact between the spray water and the air, so that the air is heated at the same time during the humidification process. Compared with using additional electric heaters or other means to heat the air, the heat in the first water tank 403 can be directly utilized.

[0064] The evaporative cooling mechanism 511 includes a fifth pump valve 504. The operating logic of the M-cycle air handling module is as follows: Figure 6As shown, the intake fan 508 provides the power to draw outside air into the room. The power of the intake fan 508 can be designed according to the relevant parameters such as the size of the room. Outside air enters the M-cycle air handling module through the intake duct 501. In summer, the outside air is first pre-cooled to the set temperature by the pre-cooler 502, and then enters the dehumidification zone of the regenerative rotary dehumidifier 503 for dehumidification to achieve the required humidity. Then, the air continues to enter the evaporative cooling mechanism 511 for further cooling to the required temperature before being sent into the room, achieving the effect of delivering the required temperature and humidity air into the room. In winter, the regenerative rotary dehumidifier 503 is turned off, and the outside air enters the intake duct 501 and is heated and humidified by the spray humidification mechanism 505 before being sent into the room.

[0065] PV / T Transporal wall air handling modules, such as Figure 2 As shown, the system includes photovoltaic modules mounted on the sun-facing wall. In this embodiment, the photovoltaic modules include a first glass cover plate 101 and a photovoltaic panel 102. The photovoltaic panel 102 converts received solar energy into electrical and thermal energy. A gas flow channel is provided between the photovoltaic modules and the wall, connecting an air inlet 105, an indoor air outlet 107, and an outdoor air outlet 108. An indoor ventilation valve is provided at the indoor air outlet 107, and an outdoor ventilation valve is provided at the outdoor air outlet 108. In winter, the indoor ventilation valve is open and the outdoor ventilation valve is closed, allowing air to circulate indoors and ensuring heating. In summer, the indoor ventilation valve is closed and the outdoor ventilation valve is open, allowing air to be discharged through the outdoor ventilation valve, utilizing the "chimney effect" for natural ventilation and cooling.

[0066] A wall heat exchange pipe 103 is provided on the side of the photovoltaic module near the air flow channel. In this embodiment, the structure of the wall heat exchange pipe 103 is as follows: Figure 5 As shown, from Figure 5 It can be seen that the wall heat exchange pipe 103 has a serpentine structure and is equipped with micro fins.

[0067] A formaldehyde decomposition mechanism is also provided in the gas flow channel. In this embodiment, the formaldehyde decomposition mechanism includes a formaldehyde thermal catalytic decomposition plate 106 connected to the photovoltaic module. In this embodiment, the formaldehyde thermal catalytic decomposition plate 106 is a CuO / Cu / Ni three-layer porous electrocatalytic plate. The working surface of the formaldehyde thermal catalytic decomposition plate 106 faces the gas flow channel. The formaldehyde thermal catalytic decomposition plate 106 is used to receive the heat energy generated by the photovoltaic module and uses the waste heat of the photovoltaic panel 102 to heat the formaldehyde thermal catalytic decomposition plate 106 to decompose formaldehyde. The formaldehyde decomposition mechanism also includes an electrolytic formaldehyde device disposed in the gas flow channel. The electrolytic formaldehyde device 106 is electrically connected to the power storage and control module. The power storage and control module supplies power to the electrolytic formaldehyde device 106, and the electrolytic formaldehyde device 106 decomposes formaldehyde, forming a dual-method air purification of "electricity + heat".

[0068] In this embodiment, as Figure 2-4 As shown, several PCM cooling elements 104 are arranged on the side of the photovoltaic module near the gas flow channel. These PCM cooling elements 104 are spaced apart. Each PCM cooling element 104 includes a PCM layer and an insulation layer. The PCM layer is positioned close to the photovoltaic module. The wall heat exchange pipe 103 is located in the area of ​​the photovoltaic module where no PCM cooling elements 104 are located. In this embodiment, the following dimensions are used as an example: PV panel size 352mm × 482mm, PCM encapsulation container wall thickness 2mm, single container size: 15mm × 86.6mm × 106.6mm (length × width × height). Six encapsulation containers are arranged in three rows and two columns, with a horizontal spacing of 75.6mm and a vertical spacing of 25.4mm, fixed to the back of the photovoltaic panel 102. Air gaps are left between the containers to promote natural convection. In this embodiment, the contact surface between the PCM layer and the insulation layer is parabolic, and the arc Y of the parabola is calculated using the formula Y = (56x - 150). 1 / n Where n = 2; the relationship between the top thickness L2 and the bottom thickness L1 of the PCM layer is L1 / L2 = 0.3. In this embodiment, the traditional rectangular PCM packaging structure is changed, and an asymmetric parabolic (n = 2) packaging design with a thickness ratio of L1 / L2 = 0.3 is adopted to optimize the natural convection path. The beneficial effects achieved by this setting are: (1) melting efficiency: the PCM melting rate is increased by 17%; (2) thermal management: the quasi-steady-state convection time is extended by more than 100%; (3) power generation gain: the photovoltaic cell temperature is reduced by about 11.5%, and the power conversion efficiency is increased to close to 12%.

[0069] In this embodiment, several PCM cooling components 104 are uniformly arranged in a rectangular array on the back of the photovoltaic module. Compared with the traditional integrated PCM cooling configuration, the segmented independent small container configuration can significantly reduce resource consumption: PCM material savings: PCM usage is reduced by 47%. Encapsulation container (aluminum plate material) savings: usage is reduced by 36%. In terms of performance: Integrated container: Compared with no photovoltaic panel 102 cooling structure, power generation performance is improved by only about 2.5%; Segmented small container: Compared with no photovoltaic panel 102 cooling structure, power generation performance is improved by 10.7%. While significantly reducing material usage, the power generation effect is greatly improved. The specific optimization effect is shown in Table 1.

[0070] Table 1

[0071]

[0072] Roof PCM heat exchange modules, such as Figure 1 As shown, it is used to receive solar energy from the roof and convert solar energy into heat energy; in this embodiment, the roof PCM heat exchange module includes a PCM encapsulation plate, the PCM encapsulation plate includes an encapsulation shell, and the encapsulation shell is provided with a phase change material 303 with a phase change temperature of 40-50°C; in this embodiment, the phase change material 303 is No. 45 paraffin wax with a melting point of 45°C, which is economically available.

[0073] The encapsulation shell is also connected to a roof heat exchange pipe 301, which is connected to the first water tank 403.

[0074] The roof heat exchange pipe 301 is connected to the phase change material 303 by several W-shaped fins 302. During the day, the phase change material melts when heated, and at night, a cold flow passes through the roof heat exchange pipe 301. The W-shaped fins 302 facilitate heat exchange between the cold flow and the phase change material. The W-shaped fins enhance the heat exchange effect, maximizing the heat exchange stored in the PCM.

[0075] A fluid storage and control module is used to receive and store the fluids used by the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module, and to control the fluids to the required temperature before delivering them to the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module; in this embodiment, the fluid storage and control module includes a first water tank 403 and a second water tank 405;

[0076] The first water tank 403 is connected to a first heat exchanger 401. One end of the cold flow channel of the first heat exchanger 401 is connected to the first water tank 403, and the other end of the cold flow channel is connected to the cold flow inlet of the wall heat exchange pipeline 103 and the cold flow inlet of the roof PCM heat exchange module. This achieves the effect of providing cold fluid to the wall heat exchange pipeline 103 and the roof heat exchange pipeline 301 through the first water tank 403. A first pump valve 402 is installed on the pipeline connecting the cold flow channel of the first heat exchanger 401 and the first water tank 403. The first pump valve 402 can control the flow rate of fluid flowing out of the first heat exchanger 401 and into the wall heat exchange pipeline 103. To coordinate the heat exchange effect and regulate the water temperature entering the wall heat exchange pipe 103 and the roof heat exchange pipe 301; a second pump valve 404 is also installed on the pipe connecting the cold flow channel of the first water tank 403 and the cold flow inlet of the roof PCM heat exchange module. The second pump valve 404 can regulate the flow rate of the fluid flowing out of the first heat exchanger 401 to the wall heat exchange pipe 103 and the roof heat exchange pipe 301 respectively, so as to coordinate the heat recovery effect of the wall heat exchange pipe 103 and the roof heat exchange pipe 301; the first water tank 403 is also connected to the evaporative cooling mechanism 511 and the spray humidification mechanism 505, and can provide hot water to the evaporative cooling mechanism 511 and the spray humidification mechanism 505;

[0077] The second water tank 405 is connected to a second heat exchanger 406. The heat outlet of the wall heat exchange pipe 103 is connected to the heat flow channel of the second heat exchanger 406, and the heat outlet of the roof PCM heat exchange module is also connected to the heat flow channel of the second heat exchanger 406. This allows the hot fluid obtained from the roof heat exchange pipe 301 and the wall heat exchange pipe 103 to be exchanged with the second heat exchanger 406 and then stored or used in the second water tank 405. The second water tank 405 is connected to indoor water-using equipment and also to an external water source. One end of the second water tank 405 is connected to the cold flow channel of the second heat exchanger 406. A seventh pump valve 407 is installed on the pipeline connecting the second water tank 405 and the cold flow channel of the second heat exchanger 406. The other end of the cold flow channel of the second heat exchanger 406 is connected to the hot flow channel of the first heat exchanger 401, and the hot flow channel of the first heat exchanger 401 is connected to the first water tank 403. In another embodiment, a feedback system is also included. The feedback system includes a temperature and humidity sensor 6 installed in the gas flow channel. The temperature and humidity sensor 6 is electrically connected to a controller. The first pump valve 402, the seventh pump valve 407, the fourth pump valve 506, the evaporative cooling mechanism 511, and the spray humidification mechanism 505 are all electrically connected to the controller. The temperature and humidity sensor 6 can detect the temperature and humidity of the air entering the gas flow channel, and then achieve automatic regulation of indoor temperature and humidity through the coordinated control of the M-cycle air handling module and the fluid storage and regulation module.

[0078] The energy storage and control module is electrically connected to the M-cycle air handling module and the PV / T Transylvanian wall air handling module, and is used to receive, store, and output the electrical energy generated by the photovoltaic modules. In this embodiment, the energy storage and control module includes a battery 201, which is electrically connected to the photovoltaic modules. The battery 201 is also electrically connected to indoor electrical equipment, a formaldehyde decomposition mechanism, a fluid storage and control module, and the M-cycle air handling module via a circuit, and an inverter 202 is also provided on the circuit.

[0079] A building temperature and humidity control and air purification method, based on the aforementioned PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system, includes: an M-cycle air handling module, a PV / T Transylvanian wall air handling module, a roof PCM heat exchange module, a fluid storage and control module, and an electrical energy storage and control module operating synchronously. The PV / T Transylvanian wall air handling module continuously receives solar energy and converts it into heat and electricity through photovoltaic modules. It receives heat energy through wall heat exchange pipes 103 and recovers the heat energy for use in the fluid storage and control module through the fluid in the wall heat exchange pipes 103. The method also includes an electrical energy storage and control module. The energy storage and regulation module receives and utilizes the electrical energy generated by the photovoltaic modules; the rooftop PCM heat exchange module receives solar energy from the roof and converts it into heat energy, which is then recycled to the fluid storage and regulation module; and it executes winter operation mode and summer operation mode respectively in summer and winter. The summer operation mode includes: outside air is regulated to a suitable humidity and temperature by the M-cycle air handling module before entering the room; indoor air enters the gas flow channel of the PV / T Transylvanian wall air handling module through air inlet 105, and the air is purified by the formaldehyde decomposition mechanism; the purified air is discharged to the outside through the outdoor air outlet 108.

[0080] The winter operation mode includes: outside air is regulated to a suitable humidity and temperature by the M-cycle air handling module before entering the room; indoor air enters the gas flow channel of the PV / T Transylvania wall air handling module through air inlet 105, and is purified by the formaldehyde decomposition mechanism; the purified air is discharged into the room through indoor air outlet 107.

[0081] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system, characterized in that: include: The M-cycle air handling module is used to regulate outdoor air to the required humidity and temperature before introducing it into the room. The PV / T Transylvanian wall air handling module includes a photovoltaic module installed on the light-facing side of the wall. A gas flow channel is provided between the photovoltaic module and the wall. The gas flow channel is connected to an air inlet (105), an indoor air outlet (107), and an outdoor air outlet (108). A wall heat exchange pipe (103) is provided on the side of the photovoltaic module closest to the air flow channel. A formaldehyde decomposition mechanism is also provided in the gas flow channel. The rooftop PCM heat exchange module is used to receive solar energy from the roof and convert it into heat energy. The fluid storage and regulation module is used to receive and store the fluids used by the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module, and to regulate the fluids to the required temperature before delivering them to the M-cycle air handling module, the PV / T Transylvanian wall air handling module, and the roof PCM heat exchange module. The energy storage and control module is electrically connected to the M-cycle air handling module and the PV / T Transylvanian wall air handling module, respectively, and is used to receive, store, and output the electrical energy generated by the photovoltaic modules.

2. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to claim 1, characterized in that: Several PCM cooling elements (104) are provided on the side of the photovoltaic module near the gas flow channel. The PCM cooling elements (104) are arranged at intervals. Each PCM cooling element (104) includes a PCM layer and an insulation layer. The PCM layer is located close to the photovoltaic module. The wall heat exchange pipe (103) is located in the area of ​​the photovoltaic module where no PCM cooling elements (104) are provided.

3. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to claim 2, characterized in that: The contact surface between the PCM layer and the insulation layer is parabolic, and the formula for calculating the arc Y of the parabola is Y=(56x-150). 1 / n , where n=2; the relationship between the top thickness L2 and the bottom thickness L1 of the PCM layer is L1 / L2=0.

3.

4. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to claim 2, characterized in that: Several of the PCM cooling elements (104) are arranged in a rectangular array on the back of the photovoltaic module. The wall heat exchange pipe (103) is connected to the area on the back of the photovoltaic module where no PCM cooling elements (104) are installed, and is in contact with the adjacent PCM cooling elements (104).

5. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to any one of claims 1-4, characterized in that: The roof PCM heat exchange module includes a PCM encapsulation plate, which includes an encapsulation shell and a second glass cover (304). The encapsulation shell contains a phase change material (303) with a phase change temperature of 40-50℃. The encapsulation housing is also connected to a roof heat exchange pipeline (301), which is connected to the fluid storage and control module. The roof heat exchange pipe (301) is connected to the phase change material (303) via W-shaped fins (302).

6. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to any one of claims 1-4, characterized in that: The formaldehyde decomposition mechanism includes a formaldehyde thermal catalytic decomposition plate (106) connected to the wall heat exchange pipeline (103) and / or photovoltaic module, and the working surface of the formaldehyde thermal catalytic decomposition plate (106) is arranged facing the gas flow channel. The formaldehyde decomposition mechanism also includes an electrolytic formaldehyde generator installed in the gas flow channel, which is electrically connected to the energy storage and control module.

7. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to any one of claims 1-4, characterized in that: The fluid storage and control module includes a first water tank (403) and a second water tank (405); The first water tank (403) is connected to a first heat exchanger (401). One end of the cold flow channel of the first heat exchanger (401) is connected to the first water tank (403), and the other end of the cold flow channel of the first heat exchanger (401) is connected to the cold flow inlet of the wall heat exchange pipeline (103) and the cold flow inlet of the roof PCM heat exchange module. A first pump valve (402) is installed on the pipeline connecting the cold flow channel of the first heat exchanger (401) and the first water tank (403). A second pump valve (404) is also installed on the pipeline connecting the cold flow channel of the first water tank (403) and the cold flow inlet of the roof PCM heat exchange module. The first water tank (403) is also connected to the M-cycle air handling module. The second water tank (405) is connected to the second heat exchanger (406). The heat outlet of the wall heat exchange pipe (103) is connected to the heat flow channel of the second heat exchanger (406). The heat outlet of the roof PCM heat exchange module is connected to the heat flow channel of the second heat exchanger (406). The second water tank (405) is connected to the indoor water equipment. The second water tank (405) is also connected to an external water source. The second water tank (405) is connected to one end of the cold flow channel of the second heat exchanger (406). A seventh pump valve (407) is installed on the pipe connecting the second water tank (405) and the cold flow channel of the second heat exchanger (406). The other end of the cold flow channel of the second heat exchanger (406) is connected to the heat flow channel of the first heat exchanger (401). The heat flow channel of the first heat exchanger (401) is connected to the first water tank (403).

8. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to any one of claims 1-4, characterized in that: The M-cycle air handling module includes an air inlet duct (501) connected to the room. The air inlet duct (501) is sequentially equipped with a precooler (502), a dehumidification mechanism, an evaporative cooling mechanism (511), a spray humidification mechanism (505), and an air inlet fan (508) for exhausting air into the room. The air inlet duct (501) connected to the air inlet fan (508) and the spray humidification mechanism (505) is also equipped with a third pump valve (507). The spray humidification mechanism (505) is connected to the fluid storage and control module; The dehumidification mechanism is a regenerative rotary dehumidifier (503). The regenerative rotary dehumidifier (503) includes a rotary dehumidification zone and a rotary regeneration zone. The rotary regeneration zone is connected to the fluid storage and control module through a steam pipeline. A steam generating mechanism is provided on the steam pipeline. The rotary regeneration zone is also connected to an exhaust pipeline. A second exhaust fan is provided on the exhaust pipeline. The steam generating mechanism includes a third heat exchanger (509) and an electric heater (510) arranged in sequence. The third heat exchanger (509) is located close to the fluid storage and control module. The spray humidification mechanism (505) includes a water collection chamber located below the spray chamber. The water collection chamber is connected to the spray nozzle of the spray chamber through a circulation pipeline. A fourth pump valve (506) is provided on the circulation pipeline. The evaporative cooling mechanism (511) includes a fifth pump valve (504).

9. The PV / T Transylvanian wall coupled M-cycle building temperature and humidity control and air purification system according to any one of claims 1-4, characterized in that: The energy storage and control module includes a battery (201), which is electrically connected to the photovoltaic module. The battery (201) is electrically connected to indoor electrical equipment, formaldehyde decomposition mechanism, fluid storage and control module and M-cycle air treatment module via a circuit. An inverter (202) is also provided on the circuit.

10. A method for controlling building temperature and humidity and purifying air, characterized in that: The building temperature and humidity control and air purification system based on the PV / T Transylvanian wall coupled M-cycle as described in any one of claims 1-9 includes: an M-cycle air handling module, a PV / T Transylvanian wall air handling module, a roof PCM heat exchange module, a fluid storage and control module, and an energy storage and control module operating synchronously. The PV / T Transylvanian wall air handling module continuously receives solar energy and converts it into heat and electricity through photovoltaic modules. It receives heat energy through the wall heat exchange pipes (103) and recovers the heat energy for use in the fluid storage and control module through the fluid in the wall heat exchange pipes (103). The energy storage and control module also recovers the heat energy through the energy storage and control module. The control module receives and utilizes the electrical energy generated by the photovoltaic module; the roof PCM heat exchange module is used to receive the solar energy from the roof and convert the solar energy into heat energy, which is then recycled to the fluid storage and control module; and the winter operation mode and summer operation mode are executed in summer and winter respectively. The summer operation mode includes: the outside air is regulated to a suitable humidity and temperature by the M-cycle air handling module and then enters the room; the indoor air enters the gas flow channel of the PV / T Transylvania wall air handling module through the air inlet (105), and the air is purified by the formaldehyde decomposition mechanism. The purified air is discharged to the outside through the outdoor air outlet (108). The winter operation mode includes: external air is regulated to a suitable humidity and temperature by the M-cycle air handling module and then enters the room. Indoor air enters the gas flow channel of the PV / T Transylvania wall air handling module through the air inlet (105) and is purified by the formaldehyde decomposition mechanism. The purified air is discharged into the room through the indoor air outlet (107).

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