阅读说明：本技术 高聚热的太阳能干燥室 (High heat-gathering solar drying chamber ) 是由 刘景� 于 2018-06-07 设计创作，主要内容包括：本发明公开了一种高聚热的太阳能干燥室,主要解决现有技术中存在的现有太阳能干燥室隔热效果不好,且其使用时间收到限制,在秋季和春季有不强烈阳光时,对产品的干燥达不到预期的效果的问题。该高聚热的太阳能干燥室包括干燥室、直通式太阳能集热管,直通式太阳能集热管的两端分别连通有进气腔和出气腔,进气腔和出气腔均通过管道与干燥室连通；直通式太阳能集热管外边缘均匀设有多个旋转抛物面聚光镜,旋转抛物面聚光镜的镜面朝向直通式太阳能集热管。通过上述方案,本发明达到了干燥效果好不收在阳光不强烈的春季和秋季也能达到预期的干燥效果,具有很高的实用价值和推广价值。(The invention discloses a high-heat-gathering solar drying chamber, which mainly solves the problems that the existing solar drying chamber in the prior art is poor in heat insulation effect, the service time of the existing solar drying chamber is limited, and when strong sunlight is generated in autumn and spring, the expected effect on the drying of products cannot be achieved. The high heat-gathering solar drying chamber comprises a drying chamber and a straight-through solar heat collecting pipe, wherein both ends of the straight-through solar heat collecting pipe are respectively communicated with an air inlet cavity and an air outlet cavity, and the air inlet cavity and the air outlet cavity are both communicated with the drying chamber through pipelines; the outer edge of the straight-through solar heat collecting pipe is uniformly provided with a plurality of paraboloid of revolution collecting mirrors, and the mirror surface of each paraboloid of revolution collecting mirror faces the straight-through solar heat collecting pipe. Through the scheme, the drying device achieves a good drying effect, can achieve an expected drying effect even in spring and autumn with weak sunlight, and has high practical value and popularization value.)

1. A highly heat concentrating solar drying chamber comprising a drying chamber (7), characterized in that: the drying device also comprises a straight-through solar heat collecting pipe (12), wherein both ends of the straight-through solar heat collecting pipe (12) are respectively communicated with an air inlet cavity (4) and an air outlet cavity (13), and the air inlet cavity (4) and the air outlet cavity (13) are both communicated with the drying chamber (7) through pipelines; the outer edge of the straight-through solar heat collecting pipe (12) is uniformly provided with a plurality of paraboloid of revolution collecting mirrors (2), and the mirror surface of each paraboloid of revolution collecting mirror (2) faces the straight-through solar heat collecting pipe (12).

2. The highly focused solar drying chamber as set forth in claim 1, wherein: the straight-through solar heat collecting pipe (12) is formed by sequentially arranging and connecting a plurality of solar heat collecting pipes, each solar heat collecting pipe comprises an outer pipe (14) and an inner pipe (16) arranged in the outer pipe (14), a heat absorbing film layer is plated on each inner pipe (16), the corresponding two ends of each inner pipe (16) and the corresponding two ends of each outer pipe (14) are connected together through sealing welding, and the outer pipe (14) and the inner pipe (16) are in a vacuum state.

3. The highly focused solar drying chamber as set forth in claim 2, wherein: the outer side surface of the outer tube (14) is paved with a convex lens (15).

4. The highly focused solar drying chamber according to any of claims 1 to 3, characterized in that: the pipeline between the air inlet cavity (4) and the drying chamber (7) is sequentially connected with a second electromagnetic valve (3) and a fan (6), the pipeline between the air outlet cavity (13) and the drying chamber (7) is provided with a first electromagnetic valve (1), the air inlet cavity (4) and the air outlet cavity (13) are communicated with air outlet pipes, and the two air outlet pipes are respectively connected with a third electromagnetic valve (5) and a fourth electromagnetic valve (11).

5. The highly focused solar drying chamber as set forth in claim 4, wherein: at least one temperature sensor (8) is arranged in the drying chamber (7), the output end of the temperature sensor (8) is connected with a processor (9), and the signal output end of the processor (9) is electrically connected with the signal input ends of the first electromagnetic valve (1), the second electromagnetic valve (3), the third electromagnetic valve (5) and the fourth electromagnetic valve (11) respectively.

6. The highly focused solar drying chamber as set forth in claim 5, wherein: the processor (9) is connected with a display screen (10).

Technical Field

The invention relates to the field of solar heat utilization, in particular to a solar drying chamber with high heat-gathering performance.

Background

At present, the solar photo-thermal technology is gradually applied to agriculture, and particularly has a large market space in the aspect of agricultural product drying; most of the existing common solar greenhouses adopt a flat plate collector to heat a medium (water or air), and agricultural products in a drying chamber are dried through heat exchange; the flat-plate solar energy has good heat absorption effect due to the structural characteristics, but the heat loss is gradually increased along with the rise of the temperature of the greenhouse, and the flat-plate solar energy collector can not have good heat insulation effect only by single-layer glass; when the sunlight of the existing solar drying chamber is not strong, such as autumn and spring, the products in the drying chamber can not be dried well, so that the service time of the existing solar drying chamber is limited.

Disclosure of Invention

The invention aims to solve the problems that the existing solar drying chamber has poor heat insulation effect, the service time of the existing solar drying chamber is limited, and when strong sunlight is not generated in autumn and spring, the expected effect on the drying of products cannot be achieved.

In order to solve the above problems, the present invention provides the following technical solutions:

a high heat-gathering solar drying chamber comprises a drying chamber and a straight-through solar heat collecting pipe, wherein both ends of the straight-through solar heat collecting pipe are respectively communicated with an air inlet cavity and an air outlet cavity, and the air inlet cavity and the air outlet cavity are both communicated with the drying chamber through pipelines; the outer edge of the straight-through solar heat collecting pipe is uniformly provided with a plurality of paraboloid of revolution collecting mirrors, and the mirror surface of each paraboloid of revolution collecting mirror faces the straight-through solar heat collecting pipe; the rotary paraboloid condenser enables more sunlight to be collected on the straight-through solar heat collecting tube, so that the solar heat collecting tube can have a better drying effect on products in spring and autumn when the sunlight is not strong.

Specifically, the straight-through solar heat collecting tube is formed by sequentially arranging and connecting a plurality of solar heat collecting tubes, each solar heat collecting tube comprises an outer tube and an inner tube arranged in the outer tube, each inner tube is plated with a heat absorption film layer, the corresponding two ends of each inner tube and the corresponding two ends of each outer tube are connected together through sealing welding, and the outer tubes and the inner tubes are in a vacuum state; the air is used as a heat-conducting medium, and after sunlight is absorbed by the heat absorption mold layer, the heat in the hot air cannot be conducted to the outside of the pipe because the space between the inner pipe and the outer pipe is vacuum, so that the heat insulation effect is achieved, the heat loss is small, the heat insulation effect is good, and the temperature of the air in the inner pipe can be rapidly increased.

Furthermore, a convex lens is paved on the outer side surface of the outer tube; the convex lens can gather more light, then transmit the light to the outer tube and refract the light to the inner tube to be absorbed by the heat absorption film layer on the inner tube, so that the invention can have better drying effect on products in spring and autumn when the sunlight is not strong.

Specifically, a second electromagnetic valve and a fan are sequentially connected to a pipeline between the air inlet cavity and the drying chamber, a first electromagnetic valve is arranged on a pipeline between the air outlet cavity and the drying chamber, the air inlet cavity and the air outlet cavity are both communicated with air outlet pipes, and a third electromagnetic valve and a fourth electromagnetic valve are respectively connected to the two air outlet pipes; the fan is used for conveying cold air and wet air in the drying chamber to the air inlet cavity, and other devices with the same function can be used for replacing the fan.

Furthermore, at least one temperature sensor is arranged in the drying chamber, the output end of the temperature sensor is connected with a processor, and the signal output end of the processor is respectively in electric connection with the signal input ends of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve; the temperature sensor transmits the temperature in the drying chamber to the processor in real time, when the temperature of the processor in the drying chamber reaches a set temperature, the processor sends a signal to enable the first electromagnetic valve and the second electromagnetic valve to be closed, the third electromagnetic valve and the fourth electromagnetic valve to be opened, and heat is directly discharged without entering the drying chamber.

Specifically, the processor is connected with a display screen; the display screen may be replaced by other devices having real-world functionality.

Compared with the prior art, the invention has the following beneficial effects:

(1) the air is used as a heat-conducting medium, and after sunlight is absorbed by the heat absorption mold layer, because the space between the inner pipe and the outer pipe is vacuum, heat in the hot air can not be conducted to the outside of the pipe, so that the heat insulation effect is achieved, the heat loss is small, the heat insulation effect is good, the temperature of the air in the inner pipe can be rapidly increased, and the product can be dried more efficiently.

(2) The convex lens can gather more light, then transmit the light to the outer tube and refract the light to the inner tube to be absorbed by the heat absorption film layer on the inner tube, so that the invention can have better drying effect on products in spring and autumn when the sunlight is not strong.

(3) The straight-through solar heat collecting pipe, the fan, the drying chamber, the temperature sensor, the processor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve form an automatic drying system, the temperature in the drying chamber is transmitted in real time according to the temperature sensor, and the processor controls the first electromagnetic valve to the fourth electromagnetic valve to be opened and closed, so that the products in the drying chamber are automatically dried.

(4) The rotary paraboloid condenser enables more sunlight to be collected on the straight-through solar heat collecting tube, so that the solar heat collecting tube can have a better drying effect on products in spring and autumn when the sunlight is not strong.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a solar heat collecting tube.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-a first electromagnetic valve, 2-a paraboloid of revolution condenser, 3-a second electromagnetic valve, 4-an air inlet cavity, 5-a third electromagnetic valve, 6-a fan, 7-a drying chamber, 8-a temperature sensor, 9-a processor, 10-a display screen, 11-a fourth electromagnetic valve, 12-a straight-through solar heat collecting tube, 13-an air outlet cavity, 14-an outer tube, 15-a convex lens and 16-an inner tube.

Detailed Description

The invention is further illustrated by the following figures and examples, and embodiments of the invention include, but are not limited to, the following examples.