Slot type solar heat-collecting device

Abstract

The invention provides a slot type solar heat-collecting device and belongs to the technical field of solar energy utilization in the new energy source field. The slot type heat-collecting device is mainly used for solving the problems of connecting the pipelines, increasing the heat-collecting efficiency, increasing the volume, lowering the manufacturing cost, and the like. The device is characterized in that the end part of a vacuum heat-collecting pipe at a focus axis of a parabola slot type condenser lens is fixed on a bracket and the condenser lens is rotated around the heat-collecting pipe in order to track the sun, thereby being convenient to connect the pipelines and relieve the load of the condenser lens. The heat-collecting pipe is of a spiral runner through type structure, is provided with a cylindrical glass pipe shell on the exterior and is provided with a heat-collecting core pipe on the interior for axially passing through the vacuum glass pipe, so as to increase the heat-absorbing uniformity and heat-collecting effect and reduce the resistance. The heat-collecting core pipe is connected to an end part sealing element through a compensator, thereby being capable of freely dilating and maintaining the vacuum tightness. A plurality of vacuum heat-collecting pipes are serially connected; and when the vacuum seal materials cannot meet the temperature demand, an end part structure for reducing the work temperature of the sealing filler is adopted.

Description

1. Technical field [0001] The invention belongs to the technology of solar light and heat utilization in the field of new energy or renewable energy, which can not only provide hot water, heating and thermal energy refrigeration for families, hotels, and units, but also be used for distributed energy, and establish a complementary energy source between solar energy and other energy sources. Supply stations (such as natural gas thermal power plants, thermal energy refrigeration stations, etc.) realize the joint production and supply of heat, electricity and cooling. 2. Background technology [0002] At present, in the field of solar energy utilization, there are mainly technologies such as solar water heaters, solar thermal power generation (heating), and solar photovoltaic power generation. [0003] Solar thermal power generation technologies mainly include tower heat collectors and trough heat collectors. [0004] The tower heat collection device is to build a tall vertica...

AI Technical Summary

Problems solved by technology

[0012] The current trough solar collectors are mainly to solve the problems of connecting the inlet and outlet pipes of the collector tubes, improving the heat collection efficiency, increasing the capacity and reducing the cost.

The heat collecting core tube is connected with the end seal through a compensator, so that it can expand and contract freely relative to the vacuum glass tube, so as to solve the problem of inconsistent thermal expansion and cold contraction

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