Hearth body for solar heat collector

Abstract

The invention discloses a hearth body for a solar heat collector. The hearth body comprises a vacuum heat-insulating cavity, a composite heat-insulating layer arranged at the outer periphery of the vacuum heat-insulating cavity, and a heat-insulating shell covered the outer periphery of the composite heat-insulating layer, wherein the vacuum heat-insulating cavity is formed by combining a plurality of vacuum heat-insulating plates, each vacuum heat-insulating plate consists of a first metal support, and heat-insulating plates arranged on the front side and the back side of the first support and used for forming a vacuum cavity; the composite heat-insulating layer consists of an aluminum silicate wool layer, and aluminum foil layers arranged on the front side and the back side of the aluminum silicate wool layer. The hearth body adopting the structure design can play a good heat-insulating effect on the heat collector in the vacuum heat-insulating cavity through the vacuum heat-insulating cavity and the composite heat-insulating layer covered the outer periphery of the vacuum heat-insulating cavity; the first metal support arranged can play a good role in supporting the vacuum heat-insulating cavity, and the hearth body has a stable and reliable structure, and is good in heat-insulating effect.

Description

technical field [0001] The invention relates to the technical field of solar photothermal power generation, in particular to a furnace body used for a solar heat collector. Background technique [0002] Due to the simple structure of the furnace body used for heat preservation in the existing technology, the heat preservation effect is poor, and the liquid medium flowing along the heat collecting tubes in the solar heat collector is easy to solidify and die under the fluctuation of temperature difference. To block the pipeline, the heat preservation effect of the furnace body must be improved in turn. Contents of the invention [0003] The purpose of the present invention is to provide a furnace body with good thermal insulation effect. [0004] For reaching this purpose, the present invention adopts following technical scheme: [0005] A furnace body for a solar heat collector, comprising a vacuum heat insulation cavity, a composite thermal insulation layer disposed on ...

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Problems solved by technology

[0002] Due to the simple structure of the furnace body used for heat preservation in the prior art, the heat preservation effect is poor, and the liquid medium flowing along the heat collecting tubes in the solar heat collector is easy to solidify and die under temperature fluctuations. If the pipeline is blocked, the heat preservation effect of the furnace body must be improved in turn.

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