CN202532755U

CN202532755U - Convex-lens-type heat collecting pipe of solar water heater

Info

Publication number: CN202532755U
Application number: CN 201220147589
Authority: CN
Inventors: 徐林
Original assignee: HAINING QUANJIALE NEW ENERGY CO Ltd
Current assignee: HAINING QUANJIALE NEW ENERGY CO Ltd
Priority date: 2012-04-10
Filing date: 2012-04-10
Publication date: 2012-11-14
Anticipated expiration: 2022-04-10

Abstract

The utility model discloses a convex-lens-type heat collecting pipe of a solar water heater which has a good heat collecting effect, can effectively absorb solar energy, and is high in heat efficiency. The structure of the convex-lens-type solar heat collecting pipe is composed of an inner pipe and an outer pipe which are sleeved; the outer pipe and the inner pipe are high-intensity glass pipes; the inner pipe and the outer pipe are coaxial; the diameter of the outer pipe is greater than that of the inner pipe; a vacuum layer is formed between the inner pipe and the outer pipe; a selective absorption film layer is coated on the inner wall of the inner pipe; the inner wall of the outer wall is in the shape of a convex lens which is convex; convex lenses are uniformly distributed on the outer wall of the outer pipe; and the focal points of the convex lenses fall off the inner pipe, and the heat collecting efficiency of the inner pipe is increased. The convex-lens-type heat collecting pipe provided by the utility model has the positive effects that a convex lens type is adopted for the inner wall of the outer pipe; sunlight is focused on the inner wall of the inner pipe, and the heat collecting efficiency of the heat collecting pipe is increased; and under the condition of same sunlight illumination, much heat can be absorbed.

Description

The lenticular thermal-collecting tube of solar water heater

Technical field

The utility model relates to a kind of solar energy heat collection pipe, the lenticular thermal-collecting tube of solar water heater that particularly a kind of outer wall is a convex lens

Background technology

Solar energy is more and more favored at the energy as the energy of a kind of green, cleaning today in short supply day by day, and solar water heater is also because it is easy to use, and is stable, efficiently becomes huge numbers of families' selection.The main heat absorbing element of solar water heater is a thermal-collecting tube; What thermal-collecting tube was common at present is all glass vacuum heat collection tube of solar energy; This thermal-collecting tube is made up of inside and outside two concentric circles glass tubes, is pumped into high vacuum between the inner and outer pipes interlayer, and its shape is as an elongated inner flask; Inner bag with outside in the vacuum layer of courage the inner bag surface plated one deck black or blue-black metal heat-conducting rete, be used for absorbing the radiation in the sunlight.Its operation principle is that solar energy sees through outer glass and shines on the inner tube outer surface absorber and convert heat energy into; Heat the heat-transfer fluid in the inner glass tube then; Owing to vacuumized between the interlayer, effectively reduce the heat loss that ambient is scattered and disappeared, collecting efficiency is improved.Though this structure absorbs solar heat to a certain extent and prevents that heat scatters and disappears, the heat of solar energy is difficult to effectively absorb, the thermal efficiency is not high.

The utility model content

It is good that the utility model technical problem to be solved provides a kind of Heat-collecting effect, can effectively absorb the high lenticular thermal-collecting tube of solar water heater of solar heat efficient.

For solving the problems of the technologies described above, the utility model is realized by following technical scheme: the described lenticular thermal-collecting tube of solar water heater of the utility model is formed by interior pipe and outer tube fit.Outer tube and interior pipe are the high strength glass pipe, and interior pipe and outer coaxial tube, outer tube diameter form vacuum layer greater than interior pipe between interior pipe and the outer tube; Inner tube wall is coated with selective absorption film;

Outer tube wall is the lenticular lens type of convex shape, and convex lens become to be evenly distributed on the outer tube outer wall, and the focus of convex lens falls on inner pipe, has increased the collecting efficiency of interior pipe.

The good effect of the utility model is: outer tube wall adopts the convex lens form, and sunlight focuses on the inner tube wall, has increased the collecting efficiency of thermal-collecting tube, under the condition of equal solar irradiation, can absorb more heat.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural principle sketch map of the utility model.

Among the figure, pipe in 1 outer tube, 2 vacuum layer 3

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is explained further details below in conjunction with the specific embodiment and accompanying drawing.At this, exemplary embodiment of the utility model and explanation thereof are used to explain the utility model, but not as the qualification to the utility model.

As shown in Figure 1, the described lenticular thermal-collecting tube of solar water heater of the utility model is formed with outer tube 1 fit by interior pipe 3.Outer tube 1 is the high strength glass pipe with interior pipe 3, and interior pipe 3 is coaxial with outer tube 1, and outer tube 1 diameter forms vacuum layer 2 greater than interior pipe 3 between interior pipe 3 and outer 1 pipe; Interior pipe 3 inwalls are coated with selective absorption film;

Outer tube 1 inwall is the lenticular lens type of convex shape, and convex lens become to be evenly distributed on outer tube 1 outer wall, on the pipe 3, has increased the collecting efficiency of interior pipe in the focus of convex lens drops on.

Claims

1. lenticular thermal-collecting tube of solar water heater, it is characterized in that: structure is formed by interior pipe and outer tube fit, and outer tube and interior pipe are the high strength glass pipe, and interior pipe and outer coaxial tube, outer tube diameter form vacuum layer greater than interior pipe between interior pipe and the outer tube;

Inner tube wall is coated with selective absorption film;

Outer tube wall is the lenticular lens type of convex shape, and convex lens become to be evenly distributed on the outer tube outer wall, and the focus of convex lens falls on inner pipe.