CN104121707A - Air purification system based on solar energy gradient utilization - Google Patents

Abstract

The invention relates to an air purification system based on cascade utilization of solar energy. The thermal cycle system includes a solar heat collecting plate, hot and cold water pipes and an insulated water tank. The solar heat collecting plate is connected to the insulated water tank through a pipeline; the solar photovoltaic panel power generation system includes a solar photovoltaic panel , cold water pipes, solar photovoltaic panels and water pipes are contacted and connected through metal connectors, and the electric energy generated by it is connected to the air purification and storage system through the power controller through wires; the air purification and storage system consists of an air purification device and an air storage tank for purifying air Composition, when there is no one in the room or when the amount of purified air is sufficient, the air purification device communicates with the air storage tank for purifying the air. The invention uses the electric energy generated by solar photovoltaic panels as the power source of the indoor air purification system, which can be installed in hospitals, nursing homes and other community health service centers to provide clean air for special groups of people, which is economical and innovative. The invention has simple structure, is convenient for installation, and has strong economy and innovation.

Description

Air purification system based on cascade utilization of solar energy

technical field

The invention relates to an air purification system, in particular to an air purification system which utilizes solar photovoltaic panels to generate electric energy to purify air.

Background technique

With the development of society and the improvement of personal living standards, people pay more and more attention to air quality. However, in recent years, smog weather often occurs in some cities in China, and a large amount of smog will be produced in the air, which indirectly affects the quality of indoor air. For improving air quality, people have proposed many effective methods and measures. For the improvement of indoor air quality that is most closely related to people's lives, air purifiers are the most commonly used and most effective tools.

According to the characteristics of low power and intermittent operation of the air purifier, it is an ideal choice to use solar energy to provide energy for it. There are two main directions for the utilization of solar energy, namely solar water heaters and solar photovoltaic power generation systems. At present, flat plate heat exchangers have been popularized, but most of the existing solar energy utilization devices have some limitations. For example, in order to meet the needs of the design, there must be some surplus capacity in the solar collector in the season with sufficient sunlight, and there is a certain amount of energy waste. Especially in summer, solar water heaters often overheat, affecting their service life.

In order to improve indoor air quality and create a healthier living environment, the invention adopts photovoltaic panels installed on solar heat collectors to generate electricity to drive an air purifier to purify indoor air. On the basis of the traditional flat-plate heat collector, according to actual needs, a certain area of photovoltaic panels is installed inside it, and the heat and electricity converted from solar energy are fully and reasonably used to provide clean air and improve indoor air quality. Cascade utilization of solar energy.

Contents of the invention

The present invention is to provide an air purification system based on the cascade utilization of solar energy. For the organic combination of energy waste of solar water heaters and air pollution problems, by installing a photovoltaic power generation system on the solar water heater, it can output while ensuring the required heat load. electrical energy.

In order to achieve the above object, the technical solution of the present invention is: an air purification system based on cascade utilization of solar energy, which is composed of a hot water circulation system, a solar photovoltaic panel power generation system, an air purification and storage system, and is characterized in that the heat circulation system includes Solar collectors, hot and cold water pipes, heat preservation water tanks, solar heat collectors are connected to heat preservation water tanks through pipes; solar photovoltaic panel power generation system includes solar photovoltaic panels, cold water pipes, solar photovoltaic panels are connected to water pipes, and connected to air purification through wires and storage system; the air purification and storage system is composed of an air purification device and an air storage tank for purifying the air. When there is no one in the room or the amount of purified air is sufficient, the air purification device communicates with the air storage tank for purifying the air. the

The solar photovoltaic panels are connected to each other by a connecting rod, and the solar photovoltaic panels can rotate around the center of the water pipe through the connecting rod. The solar photovoltaic panel is installed on the side of the cold water inlet inside the collector glass plate. There is a heat-conducting metal connector between the solar photovoltaic panel and the water pipe. The solar photovoltaic panel is placed on the upper part of the heat-conducting metal connector. The lower part of the heat-conducting metal connector is a semicircular structure, which is closely matched and connected with the cold water pipe.

Beneficial effects of the present invention:

The invention transforms the traditional solar water heater system, and installs a certain area of solar photovoltaic panels under the glass plate of the heat collector without changing the original water circulation channel, so as to convert part of the solar energy into electric energy first, and the unconverted part It is then converted into thermal energy and stored in water, thereby realizing the step-by-step utilization of solar energy and improving energy utilization efficiency.

The invention utilizes the characteristics of easy modification and installation of the flat-plate heat collector and the characteristic that the lower the temperature of the photovoltaic panel is, the higher the efficiency is, and the photovoltaic panel is installed on the side of the cold water inlet, and the photovoltaic panel is closely connected with the water pipe through a heat-conducting metal connector. This design enhances the heat transfer between solar photovoltaic panels and water, improves the efficiency of photovoltaic panels to convert solar energy into electrical energy, and gives priority to converting solar energy into electrical energy with higher efficiency; at the same time, photovoltaic panels can be rotated at a certain angle, and can be rotated at a certain angle. While supplying heat, intelligently adjust the heat and electricity output ratio according to actual needs, which can not only alleviate the overheating phenomenon of solar collectors in hot summer, but also improve the overall utilization efficiency of solar energy. The invention uses the electric energy generated by solar photovoltaic panels as the power source of the indoor air purification system, which can be installed in hospitals, nursing homes and other community health service centers to provide clean air for special groups of people, which is economical and innovative. The device of the invention is simple in structure, easy to install, and has strong economy and innovation.

The invention installs the photovoltaic panel on the water pipe on the cold water side of the heat collector through the connecting rod, so that the angle of the photovoltaic panel can rotate freely, thereby intelligently adjusting the heat and electricity output ratio. The invention makes full use of the abundant capacity of the solar water heater that only provides heat, realizes the stepped utilization of solar energy, and improves the energy utilization efficiency.

Since the photoelectric conversion efficiency of photovoltaic panels is affected by temperature, the higher the temperature, the lower the conversion efficiency. As temperatures rise, the efficiency of solar power generation decreases. The photovoltaic panels installed on the solar water heater are mainly concentrated on the inlet side of the cold water, and the temperature of the photovoltaic panels is lower, thereby achieving a greater photoelectric conversion rate. After installing photovoltaic panels, part of the solar energy is converted into electric energy, which can reduce part of the thermal load of the collector, and can greatly alleviate the overheating of the collector in hot seasons with sufficient sunlight.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the overall structure of the present invention;

Fig. 2 is a schematic diagram of interconnection of solar photovoltaic panels by connecting rods;

Fig. 3 is a schematic diagram of the connection between the solar photovoltaic panel and the water pipe through a heat-conducting metal connector.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, an air purification system based on cascade utilization of solar energy is composed of a hot water circulation system, a solar photovoltaic panel power generation system, and an air purification and storage system.

The thermal cycle system includes solar heat collecting plate 2, pipelines, and thermal insulation water tank 6, and solar thermal collector plate 2 is connected to thermal insulation water tank 6 through pipelines; the solar photovoltaic panel power generation system includes solar photovoltaic panel 1, cold water pipe 7, solar photovoltaic panel 1 and cold water The pipe 7 is contacted and connected, and is connected to the air purification and storage system through wires; the air purification and storage system is composed of an air purification device 4 and an air storage tank 5 for purifying air. When there is no one in the room or the amount of purified air is sufficient, the air purification device 4 is communicated with the air storage tank 5 of purifying air. the

(1) The thermal circulation system is the original solar heat collection system, which is composed of solar heat collection plate 2, cold and hot water pipes and thermal insulation water tank 6. The solar radiant heat received by the solar collector plate 2 is taken away by the water circulation system and stored in the thermal insulation water tank 6 .

(2) The photovoltaic panel power generation system consists of a solar photovoltaic panel 1 and a circuit composed of connecting devices and wires between the solar photovoltaic panel 1 and the cold water pipe 7, and the obtained electric energy is used to drive the air purifier. In this system, the key lies in the sufficient contact between the solar photovoltaic panel 1 and the cold water pipe 7, so that the solar photovoltaic panel 1 can be fully cooled by the circulating water, thereby increasing the photoelectric conversion efficiency of the photovoltaic panel.

(3) The air purification and storage system consists of an air purification device 4 and an air storage tank 5 for purifying air. When the system is working, the air purifier is used to purify the indoor air. When there is no one in the room or the amount of purified air is sufficient, it is stored in the air storage tank. The purified air in the air storage tank can be used when the light is insufficient.

(4) Step utilization of solar energy: add solar photovoltaic panels 1 under the glass plate of the existing heat collector, and use solar photovoltaic panels 1 to generate electricity to drive the air without affecting the original heating system. The purifier can improve the indoor air quality, so as to realize the cascade utilization of solar energy.

(5) Intelligent adjustment of heat and electricity output ratio: There is a connecting rod 8 between the solar photovoltaic panels 1 (Figure 2), through which the photovoltaic panels 1 can be controlled to rotate around the center of the cold water pipe 7. When the light intensity and heat and electricity demand change, the intelligent control system works to change the angle between the solar photovoltaic panel 1 and the light, so as to realize the intelligent adjustment of the heat and electricity output ratio. When the temperature is hot, by increasing the angle between the solar photovoltaic panel 1 and the light to increase the photoelectric conversion rate, the overheating phenomenon of the heat collector can be alleviated, thereby prolonging the service life of the solar heat collector. The solar photovoltaic panel 1 is installed on the cold water inlet side of the solar heat collector, and the solar photovoltaic panel 1 is cooled by the cooling water, so that the efficiency of the photovoltaic panel 1 is improved by solar energy.

(6) There is a thermally conductive metal connector 9 between the solar photovoltaic panel 1 and the cold water pipe 7 (Figure 3). The solar photovoltaic panel 1 is placed on the upper part of the thermally conductive metal connector 9, and the lower part of the thermally conductive metal connector 9 is a semicircular structure. The semicircular structure is closely matched with the cold water pipe 7 and connected in contact. This structure enhances the heat transfer between the solar photovoltaic panel 1 and the cold water pipe 7 , so that the solar photovoltaic panel 1 can be cooled sufficiently to reduce its temperature. In addition, the concentric ring structure can make the solar photovoltaic panel 1 rotate freely, and realize the intelligent adjustment of the heat-to-electricity output ratio. This structure can still fully contact the solar photovoltaic panel 1 while the solar photovoltaic panel 1 is rotating, so as to ensure the cooling effect of the solar photovoltaic panel 1 and improve its photoelectric conversion efficiency.

The invention uses the electric energy converted by the solar energy for indoor air purification. In the case of light, the electric energy generated by the photovoltaic panel drives the air purifier to run continuously to purify the air in the room. When there is no one in the room or the amount of purified air is sufficient, store it in a gas storage bottle so that it can be taken out of the bottle at night or when the light is not sufficient to improve the indoor air condition.

Claims (4)

1. an air cleaning system of utilizing based on solar energy cascade, formed by hot water cyclesystem, solar energy photovoltaic panel electricity generation system, air cleaning and stocking system, it is characterized in that: described heat circulating system comprises solar heat-collection plate (2), cold hot water piping, attemperater (6), solar heat-collection plate (2) connects attemperater (6) by pipeline; Solar energy photovoltaic panel electricity generation system comprises solar energy photovoltaic panel (1), cold water pipe (7), and solar energy photovoltaic panel (1) is connected with cold water pipe (7) contact, and connects air cleaning and stocking system by electric wire; Air cleaning and stocking system are made up of air cleaning unit (4) and the air accumulator (5) that purifies air, in the time that indoor nobody or the amount of purifying air have affluence, air cleaning unit (4) is communicated with the air accumulator purifying air (5).

2. the air cleaning system of utilizing based on solar energy cascade according to claim 1, it is characterized in that: between described solar energy photovoltaic panel (1), interconnected by a connecting rod (8), can centered by cold water pipe (7) center of circle, rotate by connecting rod (8) solar energy photovoltaic panel (1).

3. the air cleaning system of utilizing based on solar energy cascade according to claim 1, is characterized in that: described solar energy photovoltaic panel (1) is arranged on heat collector inside of glass plate cooling water inlet one side.

4. the air cleaning system of utilizing based on solar energy cascade according to claim 1, it is characterized in that: between described solar energy photovoltaic panel (1) and cold water pipe (7), have a heat-conducting metal connector (9), solar energy photovoltaic panel (1) is placed in the top of heat-conducting metal connector (9), the bottom of heat-conducting metal connector (9) is a semi-circular structure, and semi-circular structure closely cooperates to contact with cold water pipe (7) and is connected.