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Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system

A solar photovoltaic and cogeneration technology, applied in solar heating systems, solar thermal power generation, solar thermal energy, etc., can solve the problems of increasing transmission costs and power losses

Inactive Publication Date: 2015-05-27
CHENGDU AONENGPU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Because large-scale solar photovoltaic power plants need to occupy a lot of land, they are all built in remote areas, which increases the cost of transmission and power loss, so it is necessary to solve the problem of how to use land economically

Method used

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  • Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system
  • Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system
  • Low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1. Fluid heat exchange and low temperature solar photovoltaic photothermal storage thermal power cogeneration system

[0072] figure 1 Shown includes a container 3, in which a heat storage material 4 is arranged; at least two sets of solar panel collection systems 6 are included, and the solar panel collection part 6 is arranged outside the container 3, and a first heat exchange device 7 is provided to complete solar low temperature Heat exchange between the collection system and the heat storage material in the container; the first heat exchange device adopts a fluid heat exchange method, and heat transfer oil is used for heat exchange. Part of the first heat exchange device is set in the solar panel collection system 6, and the other part It is arranged in the container and is in close contact with the heat storage material 4 in the container to realize the exchange of heat energy. The solar panel collection system under the heat storage material repeatedly ci...

Embodiment 2

[0076] Embodiment 2. Low-temperature solar photovoltaic light-thermal storage thermal power-heat cogeneration system

[0077] figure 2 It includes a container 3, and a heat storage material 4 is arranged in the container 3; it includes at least two sets of solar vacuum tube heat pipe collection systems 6, and the solar vacuum tube heat pipe collection part 6 is arranged outside the container 3, and a first heat exchange device 7 is provided to complete the process. The heat exchange between the solar low-temperature collection system and the heat storage material in the container; the first heat exchange device adopts the heat pipe heat exchange method, the evaporation end of the heat pipe is set in the solar collector 6, and the condensation end is set in the container and connected with the storage thermal material 4 tightly connected;

[0078] The heat storage material is composed of 70% steel slag, 10% iron oxide, and 20% heat-conducting cement.

[0079] The cavity is p...

Embodiment 3

[0083] Embodiment 3. Building-integrated low-temperature solar photovoltaic photothermal storage thermal power cogeneration system

[0084] image 3 The shown container 3 is included, and the container is arranged on the south side of the 9-story building 9 to form a heat storage wall 10. The heat storage wall is composed of 7 layers of solar vacuum tube collection systems, and each layer of solar energy collection systems is provided with a first heat exchanger. , a heat storage material 4 is arranged in the heat storage wall of the container 3; it includes at least a plurality of sets of solar vacuum tube heat pipe collection systems 6, the solar vacuum tube heat pipe collection part 6 is arranged outside the heat storage wall 10, and a first heat exchange device 7 is provided Complete the heat exchange between the solar low-temperature collection system and the heat storage material in the container; the first heat exchange device adopts a heat pipe heat exchange mode, the ...

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Abstract

The utility model provides a low-temperature solar photovoltaic photo-thermal storage electricity and heat cogeneration system. A low-temperature solar heat collecting system and a solar photovoltaic collecting system are adopted; a container with at least one cavity is arranged; heat storage materials are arranged in the container; at least one set of solar energy low-temperature collecting system is included; the solar energy collecting portion is arranged outside the container; first heat exchange devices are arranged to complete heat exchange between the solar low-temperature colleting systems and the heat storage materials in the container; heat energy obtained after solar energy collection is stored in heat storage; electric energy and the heat energy can be collected at the same time; and the photovoltaic efficiency can be improved. According to the system, solar energy collection is built to be of a wall structure; therefore, the system suitable for large-scale collection and storage can be provided; the solar energy low-temperature collecting portions are arranged on one side of a wall; a solar photovoltaic power generation device is arranged around the wall or at the top of the cavity; the heat storage materials are arranged in the cavity; and therefore heat energy collection and storage integration can be achieved.

Description

technical field [0001] The invention relates to utilization of thermal energy, in particular utilization of heat storage and large-scale cross-season utilization of a solar low-temperature heat collection system. Background technique [0002] The low-temperature heat utilization of solar energy is mainly used for hot water and heating, and can also be used for cooling, but basically it is used in the season of the day, and it is mainly used in households and small-scale. The main reason is that its storage and collection capabilities are limited. , so it cannot be used on a large scale and across seasons. [0003] If it is used across seasons, it is first necessary to improve the heat accumulator, which is a device for storing heat energy. The existing heat accumulators are steam type and liquid heat accumulators; [0004] In the field of industrial energy conservation, waste heat is recovered and stored, usually using phase change technology for heat storage, and in the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/32F24J2/34F24J2/30F24J2/46F24S10/30F24S10/95
CPCY02B10/20Y02E10/44Y02P80/15
Inventor 李建民
Owner CHENGDU AONENGPU TECH