Solar photovoltaic semiconductor drying system

Abstract

The utility model provides a solar photovoltaic semiconductor drying system which comprises a PVT photovoltaic photo-thermal plate, a semiconductor heat exchange device and a drying chamber, the semiconductor heat exchange device comprises a heat exchange shell and a semiconductor chilling plate arranged in the heat exchange shell, the semiconductor chilling plate divides the heat exchange shell into a condensation cavity and a heating cavity, and the condensation cavity and the heating cavity are communicated with each other. The PVT photovoltaic photo-thermal plate, the heating cavity, the drying chamber and the condensation cavity are sequentially connected through a pipeline in a loop mode. The PVT photovoltaic photo-thermal plate is electrically connected with a storage battery through a charging and discharging controller, and the storage battery supplies power to the semiconductor chilling plate. According to the utility model, solar energy is used as a power source through the PVT photovoltaic photo-thermal plate, and electricity and heat are used simultaneously, so that the energy utilization rate is improved, the dependence on fossil fuel energy is reduced, and the emission of pollutants is reduced; based on the semiconductor thermoelectric technology, the cold end and the hot end of the semiconductor chilling plate are utilized at the same time, no refrigerant is used in the circulating drying process, environment friendliness is better achieved, damp and hot waste gas is recycled, and pollution to the environment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor drying equipment, and in particular to a solar photovoltaic semiconductor drying system. Background Technology

[0002] While thermal power is indeed an important form of energy for drying, with the increasing awareness of environmental protection and the growing popularity of the concept of sustainable development, green drying technology driven by new energy sources is gradually gaining attention.

[0003] Solar drying is the most primitive and widely used form of drying. It uses solar radiation as a heat source to heat the drying medium (usually air), replacing conventional heat sources. The drying medium comes into contact with the wet material, transferring heat to it and causing the moisture inside the material to vaporize and diffuse into the drying medium. The moisture is then carried away by the circulation of the drying medium, thus achieving drying. Solar drying technology has advantages such as energy saving, environmental protection, and economy. However, the intermittent nature of solar energy and its low energy flux density lead to instability and long drying cycles in drying systems powered solely by solar energy. Utility Model Content

[0004] In view of this, the present invention provides a solar photovoltaic semiconductor drying system that uses solar energy as a power source to reduce dependence on fossil fuel energy. Based on semiconductor thermoelectric technology, it combines the cold and heat energy generated by the hot and cold ends of the semiconductor refrigeration chip for material drying, which is more green and environmentally friendly and reduces pollution to the environment.

[0005] To achieve the above objectives, the present invention employs a solar photovoltaic semiconductor drying system, comprising a PVT photovoltaic thermal plate, a semiconductor heat exchange device, and a drying chamber. The semiconductor heat exchange device includes a heat exchange shell and a semiconductor cooling chip disposed inside the heat exchange shell. The semiconductor cooling chip divides the heat exchange shell into a condensation chamber and a heating chamber. The PVT photovoltaic thermal plate, the heating chamber, the drying chamber, and the condensation chamber are sequentially connected in a loop via pipes. The PVT photovoltaic thermal plate is electrically connected to a battery via a charge / discharge controller, and the battery supplies power to the semiconductor cooling chip.

[0006] Furthermore, a condensate outlet is provided on the heat exchange shell located on one side of the condensation chamber.

[0007] Furthermore, a first fan is installed on the pipe between the heating chamber and the drying chamber.

[0008] Furthermore, a second fan is installed on the pipe between the condensation chamber and the drying chamber.

[0009] Furthermore, a PLC controller is installed on the side wall of the drying chamber. The PLC controller is electrically connected to the semiconductor cooling chip, the charge and discharge controller, the first fan, and the second fan, respectively. The battery supplies power to the PLC controller, the first fan, and the second fan.

[0010] Furthermore, a high-efficiency air filter is provided at the air inlet at the top of the heating chamber.

[0011] Furthermore, a cold-conducting plate is provided inside the condensation cavity. One side of the cold-conducting plate is in close contact with the cold end of the semiconductor cooling chip, and several inclined first baffles are provided at equal intervals on the other side.

[0012] Furthermore, several inclined second baffles are evenly spaced on the inner wall of the heat exchange shell located on one side of the condensation chamber, and the second baffles are arranged opposite to the first baffles.

[0013] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows:

[0014] This utility model's solar photovoltaic semiconductor drying system uses solar energy as a power source through PVT photovoltaic thermal panels, converting solar energy into electrical and thermal energy for combined electrothermal and electrical processes. This improves energy utilization, reduces energy waste, decreases dependence on fossil fuels, and lowers pollutant emissions. Based on semiconductor thermoelectric technology, it also utilizes the hot and cold ends of semiconductor cooling chips to further reduce energy waste. No refrigerant is used in the cyclic drying process, making it more environmentally friendly. The system also recovers and treats humid heat waste gas during the drying process, further reducing environmental pollution. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a solar photovoltaic semiconductor drying system according to the present invention;

[0016] Figure 2 This is a control principle diagram of a solar photovoltaic semiconductor drying system according to the present invention;

[0017] Reference numerals: 1-PVT photovoltaic thermal plate, 2-semiconductor heat exchange device, 201-heating chamber, 202-condensing chamber, 203-condensate outlet, 204-high-efficiency air filter, 205-cooling plate, 206-first baffle plate, 207-second baffle plate, 3-semiconductor cooling chip, 4-drying chamber, 5-first fan, 6-second fan, 7-battery, 8-charge and discharge controller, 9-PLC controller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following describes this utility model in further detail through preferred embodiments.

[0019] Example

[0020] Please see the appendix Figure 1-2 As shown, this embodiment provides a solar photovoltaic semiconductor drying system, including a PVT photovoltaic thermal plate 1, a semiconductor heat exchange device 2, and a drying chamber 4. The semiconductor heat exchange device 2 includes a heat exchange shell and a semiconductor cooling chip 3 disposed inside the heat exchange shell. The semiconductor cooling chip 3 divides the heat exchange shell into a condensation chamber 202 and a heating chamber 201. The PVT photovoltaic thermal plate 1, the heating chamber 201, the drying chamber 4, and the condensation chamber 202 are sequentially connected in a loop through pipes. The PVT photovoltaic thermal plate 1 is electrically connected to a battery 7 through a charge and discharge controller 8, and the battery 7 supplies power to the semiconductor cooling chip 3.

[0021] In this embodiment, the thermoelectric cooler 3 is vertically arranged. In other embodiments, it can be arranged horizontally or at an angle. The cold end and hot end of the thermoelectric cooler 3 have cooling and heating effects, respectively. The PVT photovoltaic thermal panel 1 can convert light energy into electrical energy and heat energy.

[0022] Specifically, a condensate outlet 203 is provided on the heat exchange shell located on one side of the condensation chamber 202, and the condensate collected in the condensation chamber 202 is discharged from the condensate outlet 203.

[0023] Specifically, a first fan 5 is installed on the pipe between the heating chamber 201 and the drying chamber 4, and a second fan 6 is installed on the pipe between the condensing chamber 202 and the drying chamber 4. The first fan 5 and the second fan 6 can increase the air delivery velocity and flow rate of the circulation pipe.

[0024] Specifically, to improve the automation and intelligence of this system, a PLC controller 9 is installed on the side wall of the drying chamber 4. The PLC controller 9 is electrically connected to the semiconductor cooling chip 3, the charge / discharge controller 8, the first fan 5, and the second fan 6. The battery 7 supplies power to the PLC controller 9, the first fan 5, and the second fan 6. The PLC controller 9 can be a Siemens S7 series PLC.

[0025] Specifically, a high-efficiency air filter 204 is provided at the top air inlet of the heating chamber 201 to filter the hot air and improve the cleanliness of the circulating air in the system.

[0026] Specifically, a cold-conducting plate 205 is disposed inside the condensing cavity 202. One side of the cold-conducting plate 205 is tightly attached to the cold end of the semiconductor cooling chip 3, and several inclined first baffles 206 are disposed at equal intervals on the other side. Several inclined second baffles 207 are disposed at equal intervals on the inner wall of the heat exchange shell located on one side of the condensing cavity 202. The second baffles 207 are arranged opposite to the first baffles 206. The cold-conducting plate 205 is made of copper. The first baffles 206 and the second baffles 207 improve the condensation effect of the condensing cavity 202 and reduce the moisture content in the humid air. The first baffles 206 and the second baffles 207 are made of copper alloy.

[0027] The working principle of this utility model is as follows: The PVT photovoltaic thermal plate 1 converts light energy into electrical energy and heat energy. The generated electrical energy is stored in the battery 7, and the generated heat energy heats the air in the pipe. The hot air output from the PVT photovoltaic thermal plate 1 enters the heating chamber 201 and is heated a second time in the heating chamber 201 by the hot end of the semiconductor cooling chip 3 before entering the drying chamber 4. The material to be dried in the drying chamber 4 is dried by hot air. The hot and humid air in the drying chamber 4 flows out of the drying chamber 4 and is sent to the condensing chamber 202 through the pipe. It is cooled by the cold end of the semiconductor cooling chip 3. The condensate formed by the condensation of water vapor in the hot and humid air is discharged from the condensate outlet 203. After cooling in the condensing chamber 202, the air enters the PVT photovoltaic thermal plate 1. This cycle repeats to achieve the drying of the material in the drying chamber 4.

[0028] The above description is a preferred embodiment of the present utility model, used to explain the technical solution of the present utility model. Those skilled in the art can also make conventional modifications, equivalent substitutions and improvements within the spirit and principles of the present utility model.

Claims

1. A solar photovoltaic semiconductor drying system, characterized in that, The device includes a PVT photovoltaic thermal panel, a semiconductor heat exchanger, and a drying chamber. The semiconductor heat exchanger includes a heat exchange shell and a semiconductor cooling chip installed inside the heat exchange shell. The semiconductor cooling chip divides the heat exchange shell into a condensation chamber and a heating chamber. The PVT photovoltaic thermal panel, the heating chamber, the drying chamber, and the condensation chamber are connected in a sequential loop through pipes. The PVT photovoltaic thermal panel is electrically connected to a battery through a charge and discharge controller, and the battery supplies power to the semiconductor cooling chip.

2. The solar photovoltaic semiconductor drying system according to claim 1, characterized in that: A condensate outlet is provided on the heat exchange shell located on one side of the condensation chamber.

3. The solar photovoltaic semiconductor drying system according to claim 1, characterized in that: A first fan is installed on the pipe between the heating chamber and the drying chamber.

4. The solar photovoltaic semiconductor drying system according to claim 3, characterized in that: A second fan is installed on the pipe between the condensation chamber and the drying chamber.

5. The solar photovoltaic semiconductor drying system according to claim 4, characterized in that: A PLC controller is installed on the side wall of the drying chamber. The PLC controller is electrically connected to the semiconductor cooling chip, the charge and discharge controller, the first fan, and the second fan. The battery supplies power to the PLC controller, the first fan, and the second fan.

6. The solar photovoltaic semiconductor drying system according to claim 1, characterized in that: A high-efficiency air filter is provided at the air inlet at the top of the heating chamber.

7. The solar photovoltaic semiconductor drying system according to claim 1, characterized in that: A cooling plate is installed inside the condensation chamber. One side of the cooling plate is in close contact with the cold end of the semiconductor cooling chip, and several inclined first baffles are arranged at equal intervals on the other side.

8. The solar photovoltaic semiconductor drying system according to claim 7, characterized in that: Several inclined second baffles are evenly spaced on the inner wall of the heat exchange shell located on one side of the condensation chamber, and the second baffles are arranged opposite to the first baffles.

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