CN204513812U - A kind of new type solar energy straight-through vacuum pipe air collector - Google Patents

Abstract

The utility model relates to a novel solar energy straight-through vacuum tube air heat collector, which comprises a straight-through vacuum tube, a header, a blower, a metal baffle and a ventilation duct; A number of metal baffles are distributed inside the header. According to the utility model, by adding metal baffles in the header, the air can be circulated in the direct vacuum tube to the greatest extent, and the heat exchange of the air can be enhanced, so that the air can be heated in the heat collector. The outlet can get hot air with higher temperature.

Description

A new type of solar direct-through vacuum tube air collector

technical field

The utility model relates to a novel solar energy straight-through vacuum tube air heat collector, which belongs to the technical field of solar heat utilization.

Background technique

With the development of today's science and technology, the consumption of energy is increasing day by day. Traditional energy sources such as coal, oil, and natural gas are seriously polluting the environment and are being exhausted. The research and development and utilization of new energy sources are becoming more and more important. Solar energy is a new The leader in energy is quickly recognized and used by people for its advantages of convenience and pollution-free. As an important part of solar heat utilization, the utilization of solar air collectors has become one of the key research projects due to its wide application range, simplicity, and convenience. extensive attention.

At present, the solar vacuum tube air collectors involved are generally intercalated vacuum tube air collectors and straight-through tube vacuum tube air collectors. Evenly distributed in the vacuum tube, and the heat exchange is not sufficient; and the straight-through vacuum tube solar vacuum tube air collector also has the disadvantage of uneven internal air distribution, which cannot achieve the best heat exchange effect and cannot reflect the advantages of the straight-through vacuum tube.

Contents of the invention

The purpose of this utility model is to propose a new type of solar energy straight-through vacuum tube air heat collector, which can enhance the heat exchange of air inside the heat collector, thereby improving the light-to-heat conversion efficiency of the heat collector as a whole.

The utility model is completed through the following technical solutions: a novel solar vacuum tube air heat collector, including a straight-through vacuum tube, a header box, a blower, a metal baffle and a ventilation duct; the air inlet of the collector box and the outlet of the blower pass through The ventilation pipes are connected, and there are several metal baffles distributed in the header of the collector. The metal baffles are embedded in the header and divide the header into multiple areas. Circulate in the straight-through vacuum tube to enhance air heat exchange, so that hot air with a higher temperature can be obtained at the outlet of the collector.

The shape of the metal baffle can be arc-shaped, and when the baffle is inclined at a certain angle, air can be introduced into the straight-through vacuum tube to achieve the same purpose.

The straight-through vacuum tubes of the straight-through vacuum tube air heat collector are of a series structure, resulting in an "S" shape of the air flow channel inside.

The beneficial effect of the utility model is: the use of metal baffles allows the air to fully exchange heat in the straight-through vacuum tubes, so that the air flows through each straight-through vacuum tube, and all the straight-through vacuum tubes are in a series state, increasing the outlet temperature of the heat collector, thereby increasing The light-to-heat conversion efficiency of the collector system.

Description of drawings

Fig. 1 is a schematic diagram of the structural principle of the utility model embodiment.

In the figure, 1. Straight through vacuum tube, 2a, 2b. Header, 3. Blower, 4. Collector air inlet, 5. Metal baffle, 6. Collector air outlet, 7. Ventilation duct.

Detailed ways

In the embodiment shown in Figure 1, the air inlet (4) of the solar vacuum tube air collector is connected to the air outlet of the blower (3) through a ventilation duct (7), and the outside air enters the collector under the action of the blower (3). Inside the heater header (2a), there is a metal baffle (5) at the air inlet (4). The metal baffle (5) guides the cold air that has just entered into the straight-through vacuum tube (1). After heat exchange in (1), it enters the header (2b), where a metal baffle (5) is also installed to guide the air after heat exchange into the next straight-through vacuum tube (1), and the air is further exchanged The heat is circulated in this way, and the flow channel of the air in the heat collector is "S" shape during the whole process, and finally the hot air after heat exchange flows out from the air outlet (6) of the header (2a).

Claims (1)

1. A new type of solar energy straight-through vacuum tube air heat collector, comprising a straight-through vacuum tube, a header, a blower, a metal baffle and a ventilation duct; the air inlet of the heat collector header is connected with the outlet of the blower through a ventilation duct, There are a number of metal baffles distributed inside the header, which are embedded in the header and divide the header into multiple areas. Circulation, enhanced air heat exchange, hot air at a higher temperature can be obtained at the outlet of the collector. 2. The solar direct-through vacuum tube air collector according to claim 1, characterized in that: the metal baffle can be arc-shaped, and when the baffle is inclined at a certain angle, air can be introduced into the direct-through vacuum tube, achieve the same purpose. 3. The solar straight-through vacuum tube air heat collector according to claim 1, characterized in that the straight-through vacuum tubes of the straight-through vacuum tube air heat collector are in a series structure, resulting in an "S" shape of the air flow channel inside it.