Temperature adjustable solar heating device

Abstract

The invention discloses a temperature adjustable solar heating device, comprising a heat insulation and heat absorbing box body, a heating flow way arranged in the heat insulation and heat absorbing box body, an input and an output which are penetrated through the heating flow way and used for making the heating medium flow in and out, and a guide flow mechanism matched with the heating flow way and used for forming different lengths of the heating paths; the guide flow mechanism is connected with an external electric control device. According to the structural design, the path length of the heating flow way can be reasonably adjusted within a fixed space according to the heat absorbing amount of the heat insulation and heat absorbing box body and the output temperature thereof, thereby effectively improving the heat transfer efficiency of the solar heating device.

Description

technical field [0001] The invention relates to the technical field of heating, in particular to a solar heating device with adjustable temperature. Background technique [0002] The heating channel of the solar heating device in the prior art has a relatively single path, so that in the case of equivalent heat absorption, the temperature of the heat energy output by the heating medium along the output port of the heating channel is relatively fixed; If the input flow rate is used to change the output temperature, it will inevitably lead to a decrease in the thermal conversion efficiency of the solar heating device when the sunlight is insufficient, so that the output heat energy temperature cannot reach the required temperature; if the heating of the heating medium is simply increased In terms of the length of the path, when the sunlight is sufficient, the normal temperature air will reach a preset temperature in the front flow channel after entering the flow channel, which...

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Problems solved by technology

[0002] The heating channel of the solar heating device in the prior art has a relatively single path, so that in the case of equivalent heat absorption, the temperature of the heat energy output by the heating medium along the output port of the heating channel is relatively fixed; If the input flow rate is used to change the output temperature, it will inevitably lead to a decrease in the thermal conversion efficiency of the solar heating device when the sunlight is insufficient, so that the output heat energy temperature cannot reach the required temperature; if the heating of the heating medium is simply increased In terms of the length of the path, when the sunlight is sufficient, the normal temperature air will reach a preset temperature in the front flow channel after entering the flow channel, which will cause a large energy loss when passing through the rear flow channel. In the weak case, the output temperature cannot meet the higher requirements, and the outlet temperature cannot be adjusted according to the needs under the same sunlight illuminance; in order to improve the control ability of the output temperature of the solar heating device and effectively reduce heat loss, Need to make further improvements to the existing technology

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