CN200979302Y

CN200979302Y - Solar energy vacuum pipe air heat collector

Info

Publication number: CN200979302Y
Application number: CNU2006200224253U
Authority: CN
Inventors: 李志民; 钟浩; 唐润生; 余明九
Original assignee: Yunnan Normal University
Current assignee: Yunnan Normal University
Priority date: 2006-10-08
Filing date: 2006-10-08
Publication date: 2007-11-21
Anticipated expiration: 2016-10-08

Abstract

Disclosed is a solar vacuum tube air heating collector belonging to the solar photo-thermal employment field. The utility model is characterized in that a vacuum heating collecting pipe whose two ends are opened with two openings is sealed and connected into an air heating channel by a heating collecting chamber and a air pre-processing chamber, an optical collecting plate which faces the sun face namely the back of the vacuum heating collecting pipe and a bracket form an air heating collector. The cool air enters into the vacuum heating collecting pipe through filtering and dehumidifying of the air pre-processing chamber, the front of the vacuum heating colleting pipe is directly radiated by the sun, the back of the vacuum heating collecting pipe is reflected by the optical collecting plate, the air in the heating pipe and the produced heat air are collected by a heating collecting chamber and are used, then the recycling flowing of air is formed. With the utility model, the air can not only naturally flow but also compulsorily flow by installing an extractor fan in the heating collecting chamber, and the utility model can reasonably employ the solar energy to heat the air and save a plurality of conventional source of energy, and the utility model has simple structure and is convenient to use and is easy to spread, and decides the dimension of the heating collector according to the amounts of the heat air. With the vacuum heating collecting pipe, heat convection between the heat air in the pipe and the outside world is prevented greatly, and thereby the heating collecting efficiency is high.

Description

A kind of solar energy vacuum tube air collector

Technical field:

The utility model belongs to solar energy heat utilization field, relates to a kind of solar energy vacuum tube air collector, and it can be widely used in solar energy housing heating, solar energy drying and other need be with the place of solar heat air system.

Background technology:

Existing solar energy air heat collector is mainly plate armature, and by transparent cover plate, absorber and lagging casing three parts are formed, and flat-plate collector is easy to make processing, and collector area is big, but the heat loss height, heat collector outlet hot air temperature is low, and collecting efficiency is low.At present mainly be to improve air collector, improve outlet temperature, perhaps increase the heat storage capacity of heat collector with heat accumulating from the hot path aspect that adds that reduces heat radiation and increase air.As the utility model of number of patent application 85200928, feature is to have an air return flow line, increases air and add hot path in heat collector.The utility model of number of patent application 88221059.9 (publication number 2042939U) and 93248208.2 (publication number 2193978Y) and for example, feature are the transparent honeycomb structure are installed between transparent cover plate and absorber, to reduce the heat loss of upper cover plate.The utility model of number of patent application 200510040068.3, it is characterized by between the absorber plate of traditional flat air collector and base plate and fill heat accumulating, utilize heat accumulating to absorb and the storage solar heat,, improve the thermal efficiency to reduce the air collector thermal loss.The solar energy air heat collector that the utility model of number of patent application 02289421.7 (publication number CN2585129Y) proposes, it is characterized in that having adopted mono-layer tube wall type heat collecting glass tube as heat collecting element, improve to some extent at thermal-arrest in form, but do not solve thermal-collecting tube and extraneous heat convection well.The vacuum tube type heat collector can solve heated medium and extraneous heat convection and heat dissipation problem well, Heat-collecting effect is good, in solar water heating system, be widely used, but traditional vacuum tube is an end opening, the blind pipe of other end sealing, be suitable for the heating liquid medium,, be difficult for using for the heating of gas mediums such as air.And the vacuum tube type thermal-collecting tube of both ends open, for the generation of vacuum tube air collector provides condition.

Summary of the invention:

A kind of solar energy vacuum tube air collector is made up of vacuum tube type thermal-collecting tube (2), solar panel (3), heat build-up chamber (4), support (5) and the air pretreatment chamber (1) of both ends open.It is characterized in that the vacuum tube type thermal-collecting tube (2) of both ends open being connected, being sealed to the air heat passage by heat build-up chamber (4) and air pretreatment chamber (1).With the vacuum heat collection pipe solar panel of sun face (3) dorsad, support (5), constitute air collector.Cold air by the filtering of air pretreatment chamber, the dehumidifying after enter in the heat collector, solar radiation is directly accepted in the heat collector front, and the reflected radiation from solar panel is then accepted at the back side, the air in the heating tube, the hot-air that produces is sent after being collected by the heat build-up chamber, forms circulating of air.

Fan, forced air supply can be installed in heat build-up chamber (4).

Drawing and pulling type filter (9) filtering air is installed by air pretreatment chamber (1) and drawing and pulling type dehydrating unit (11) is deviate from airborne moisture content.

The utility model, air both can flow naturally, but also forced flow can sufficiently and reasonably be utilized the solar energy heating air, saved the wide variety of conventional energy, and simple in structure, easy to use, can determine the size of heat collector according to required quantity of hot air, easily promoted.Owing to adopted vacuum heat collection pipe, can stop hot-air and extraneous heat convection in the pipe effectively, the collecting efficiency height.

Description of drawings:

Fig. 1, vacuum tube type air collector structural representation

Fig. 2, heat build-up chamber and air pretreatment chamber schematic diagram

The specific embodiment:

As shown in Figure 1,12 pipe vacuum heat collection pipes (2) row arranged side by side seal, be installed between air pretreatment chamber (1) and heat build-up chamber (4), and in the shade of thermal-collecting tube is installed solar panel (3), and support (5) supports heat collector, the heat collector mounted angle is 30 degree, and the installation position angle is south by west 5 degree.

During application cold air by the filtering of air pretreatment chamber, the dehumidifying after enter in the vacuum heat collection pipe, direct solar radiation is accepted in the vacuum heat collection pipe front, the reflected radiation from solar panel is then accepted at the back side, the hot-air that heating produces is sent use after being collected by the heat build-up chamber, owing to adopted vacuum heat collection pipe, can stop hot-air and extraneous heat convection in the pipe effectively, hot-air is by the fan exhausting of 2 3.6W, forced circulation flows, through experiment, in solar radiation greater than 900w/m ², under the meteorological condition that ambient air temperature is 20 ℃, heat build-up chamber outlet temperature reaches 80 ℃.Can sufficiently and reasonably utilize the solar energy heating air, save the wide variety of conventional energy, and simple in structure, easy to use, can determine the size of heat collector, easily promote according to required quantity of hot air.

Claims

1, a kind of solar energy vacuum tube air collector is made up of vacuum tube type thermal-collecting tube (2), solar panel (3), heat build-up chamber (4), support (5) and the air pretreatment chamber (1) of both ends open.It is characterized in that the vacuum tube type thermal-collecting tube (2) of both ends open being connected, being sealed to the air heat passage by heat build-up chamber (4) and air pretreatment chamber (1).

2,, it is characterized in that heat build-up chamber (4) collection hot-air and fan, forced air supply can be installed according to claims 1 described solar energy evacuated cast air collector.

3,, it is characterized in that drawing and pulling type filter (9) filtering air is installed by air pretreatment chamber (1) and drawing and pulling type dehydrating unit (11) is deviate from airborne moisture content according to claims 1 described solar energy vacuum tube air collector.

4,, it is characterized in that many group thermal-collecting tube arrays can the in parallel or use that is cascaded according to claims 1 described solar energy vacuum tube air collector.