Photovoltaic photo-thermal integrated circulation system for greenhouse
A greenhouse and circulation system technology, applied in the field of photovoltaic-thermal integrated circulation system, can solve problems such as single operation mode, low efficiency of comprehensive utilization of light and heat, and difficulty in ensuring constant temperature and humidity conditions in greenhouses, so as to maintain constant temperature and humidity Effect
Active Publication Date: 2017-05-10
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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[0004] However, the operation mode of the PVT system used above is relatively single, and it is impossible to switch between seasonal operation modes, resulting in low efficiency of comprehensive utilization of light and heat; in addition, under extreme weather conditions, it is difficult to ensure constant temperature and humidity conditions in the greenhouse
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[0017] In order to better illustrate the technical means and effects adopted by the present invention, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, a photovoltaic photothermal integrated circulation system for greenhouses proposed by the present invention includes a photovoltaic photothermal module 1, a low-temperature hot water storage tank 2, a heat pump unit 6, a high-temperature hot water storage tank 9, ground source replacement Heater 10, fan coil unit 11, humidity sensor 3, air humidifier 4, circulating water pump 12.
[0019] Specifically, the inlet of the heat collecting pipeline of the photovoltaic photothermal module 1 is connected to the public water network through the circulating water pump 12, and the outlet of the heat collecting pipe is connected to the low-temperature hot water storage tank 2. The photovoltaic photothermal module 1 is heating the col...
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The invention relates to a photovoltaic photo-thermal integrated circulation system for a greenhouse. A photovoltaic photo-thermal assembly is connected with a public water network, a power network and a low-temperature heat accumulation water tank, power generation waste heat and unutilized solar irradiation are utilized to the most degree while power generation, the power generation efficiency of a photovoltaic cell is improved, and low-temperature hot water is produced and can be used for greenhouse humidification. A high-temperature heat accumulation water tank is connected with the low-temperature heat accumulation water tank through a heat pump unit and produces and stores high-temperature hot water for heating a greenhouse space. A ground source heat exchanger is arranged behind the heat pump unit and can extract a seasonally stored underground heat source for auxiliary heating of the high-temperature heat accumulation water tank. The photovoltaic photo-thermal integrated circulation system can achieve greenhouse humidification and space heating under the conditions of night and winter through photo-thermal transfer in space and time. In addition, power self-supply and grid-connected power generation can be also achieved, and the photovoltaic photo-thermal integrated circulation system effectively reduced energy consumption and improves comprehensive utilization efficiency of solar energy.
Description
technical field [0001] The invention relates to a photovoltaic photothermal integrated circulation system used in greenhouses, belonging to the field of comprehensive application of solar photoelectricity and photothermal technology. Background technique [0002] With the transformation of traditional agriculture to modern agriculture in my country, the application of large-scale greenhouses has developed rapidly. However, the current energy utilization method is still dominated by grid electricity and fossil fuels (coal, oil, gas, etc.), which are expensive and cause environmental pollution due to waste emissions. With the improvement of people's awareness of energy conservation and environmental protection, creating a new green and ecological agricultural model through the use of clean energy has become a trend that people respect. [0003] As an important primary energy and renewable energy, solar energy is rich in resources, inexhaustible, inexhaustible, without transpo...
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IPC IPC(8): A01G9/24
CPCA01G9/243A01G9/245A01G9/246Y02P60/12Y02P60/14Y02A40/25
Inventor 李美成王恬悦崔梦其陈杰威刘文健
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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