CN202304009U

CN202304009U - Solar inductive heat collection pipe

Info

Publication number: CN202304009U
Application number: CN2011203622431U
Authority: CN
Inventors: 李军; 孙湧庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-07-04
Anticipated expiration: 2021-09-26

Abstract

The utility model provides a solar inductive heat collection pipe with larger heat collection area and higher heat energy absorption rate. The solar inductive heat collection pipe comprises a glass outer pipe with one closed end, wherein a U-shaped copper inner pipe is arranged in the glass pipe; the part between the U-shaped copper inner pipe and the glass outer pipe is vacuumized; the U-shaped copper inner pipe and the glass outer pipe are melt and sealed into a whole at the opening end of a glass round pipe; the outer surface of the U-shaped copper inner pipe is coated with a solar absorbing layer; and the solar absorbing layer is further coated with an anti-reflecting film. According to the solar inductive heat collecting pipe disclosed by the utility model, the copper inner pipe is used as an inner pipe of the heat collecting pipe; the outer surface of the copper inner pipe is coated with the solar absorbing layer and the anti-reflecting film sequentially; and the part between the copper inner pipe and the glass outer pipe is vacuumized, so that the absorption efficiency of the heat collection pipe is greatly increased.

Description

Solar energy is induced thermal-collecting tube

Technical field

The utility model belongs to technical field of solar water heaters, relates to applicable to a kind of solar energy of solar heat exchangers such as boiler, steam generator, solar water heater inducing thermal-collecting tube.

Background technology

In order to overcome the low problem of the existing heat absorption rate of solar energy heat collection pipe, people have done many improvement to it.For example: Chinese patent 87210032 discloses " a kind of all glass vacuum heat collection tube of solar energy "; Though it has certain transmission absorption rate and heat endurance; But because the cross section of this solar heat pipe still adopts traditional circle and has only one; Therefore in order to obtain bigger collector area, just need to use the thermal-collecting tube of greater number; And circular interior pipe volume is relatively large, has caused the interior efficiency of heating surface of unit interval low, so the cost of this solar energy heat collection pipe is higher, collecting efficiency is relatively low, influences its utilization and extention widely.

Summary of the invention

The utility model technical problem to be solved is, provide a kind of and have bigger collector area, and the solar energy with higher heat energy absorptivity induced thermal-collecting tube.

The utility model comprises the glass outer tube of end sealing, in the glass outer tube, is provided with in the U type red copper and manages, and vacuum pumping between pipe and the glass outer tube in the said U type red copper, and be integral in glass outer tube open end and glass outer tube sealing by fusing; Said U type copper tube outer surface covers solar absorbing layer.

In order to improve solar absorptance, cover antireflective coating on the said solar absorbing layer.Said antireflective coating can be copper-nitrogen-fluorine antireflective coating or copper-oxygen-fluorine antireflective coating.The thickness of said antireflective coating is preferably 50x10 ^-9M.

Said solar absorbing layer can be the aluminium copper film, or is bottom with the aluminium film, is the composite film that the solar selectively absorbed layer is formed with gradual change copper-nitrogen composite overlay film layer or with gradual change copper-carbon-O compoiste material overlay film layer.

In order further to increase collector area, pipe pipe outer peripheral face can be provided with red copper thermal-arrest plate in the said U type red copper; The punching press of said red copper thermal-arrest plate have with U type red copper in two grooves matching of pipe outer peripheral face, pipe clamp is gone in the groove in the U type red copper, is assembled into one with red copper thermal-arrest plate.

Simultaneously, carry out the whole sealing by fusing of pipe in glass outer tube and the U type red copper for ease, vacuum between pipe and the outer tube in realizing smoothly, the utility model is provided with end cap in glass outer tube open end; Said end cap be provided with U type red copper in the pore that cooperates of ligament, the glass outer tube is an one through pipe sealing by fusing in end cap and the U type red copper.

Can have additional soft locating support between the free end of pipe and the glass outer tube blind end in the said U type red copper.

The utility model adopts copper tube as managing in the thermal-collecting tube, and covers solar absorbing layer and antireflective coating successively at its outer surface, and with vacuum pumping between pipe and the glass outer tube in the red copper, has increased substantially the absorption efficiency of thermal-collecting tube.

Description of drawings

Fig. 1 is the vertical section structure sketch map of the utility model;

Fig. 2 is the cross-sectional structure sketch map of the said red copper thermal-arrest of the utility model plate;

Fig. 3 is the described end cover structure sketch map of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is done further explain:

As shown in Figure 1, the utility model comprises pipe 2, red copper thermal-arrest plate 3 and end cap 4 in glass outer tube 1, the U type red copper, wherein: the sealing of glass outer tube 1 one ends; Pipe 2 is assembled into one with red copper thermal-arrest plate 3 in the U type red copper, and inserts in the glass outer tube 1; Simultaneously, the pore that pipe 2 stretches out end cap 4 in the U type red copper is connected with the heat exchange medium source, and glass outer tube 1 is one at its openend through pipe 2 sealings by fusing in end cap 4 and the U type red copper, and manage in the U type red copper 2 and glass outer tube 1 between be evacuated.

All be coated with solar absorbing layer and antireflective coating (not indicating among the figure) in the U type metal red copper on the outer surface of pipe 2 and red copper thermal-arrest plate 3 successively.Wherein, solar absorbing layer is to be bottom with the aluminium film, is the solar selectively absorbing coating of absorbing material with gradual change copper-nitrogen composite; Antireflective coating is layer of copper-nitrogen-fluorine antireflective coating.

As shown in Figure 2,3 punching presses of red copper thermal-arrest plate have with U type red copper in two grooves 31 matching of pipe 2 outer peripheral faces, pipe 2 can snap in the groove 31 in the U type red copper, is assembled into one with red copper thermal-arrest plate 3.

As shown in Figure 3, end cap 4 be provided with U type red copper in the pore 41 that cooperates of ligament.Pipe can pass the pore of end cap in the U type red copper, and the glass outer tube is an one through pipe sealing by fusing in end cap and the U type red copper.For guaranteeing the sealing by fusing quality, end cap should adopt the cut down material that has with red copper same expansion coefficient.

Claims

1. a solar energy is induced thermal-collecting tube; The glass outer tube that comprises end sealing; In the glass outer tube, be provided with in the U type red copper and manage, it is characterized in that: vacuum pumping between pipe and the glass outer tube in the said U type red copper, and be integral in glass outer tube open end and glass outer tube sealing by fusing; Said U type copper tube outer surface covers solar absorbing layer.

2. solar energy as claimed in claim 1 is induced thermal-collecting tube, it is characterized in that: cover antireflective coating on the said solar absorbing layer.

3. solar energy as claimed in claim 2 is induced thermal-collecting tube, it is characterized in that, said antireflective coating is copper-nitrogen-fluorine antireflective coating or copper-oxygen-fluorine antireflective coating.

4. solar energy as claimed in claim 3 is induced thermal-collecting tube, its characteristic in: the thickness of said antireflective coating is 50x10 ^-9M.

5. solar energy as claimed in claim 1 is induced thermal-collecting tube; It is characterized in that: said solar absorbing layer is the aluminium copper film; Or be bottom with the aluminium film, be the composite film that the solar selectively absorbed layer is formed with gradual change copper-nitrogen composite overlay film layer or with gradual change copper-carbon-O compoiste material overlay film layer.

6. solar energy as claimed in claim 1 is induced thermal-collecting tube, it is characterized in that: pipe pipe outer peripheral face is provided with red copper thermal-arrest plate in the said U type red copper; The punching press of said red copper thermal-arrest plate have with U type red copper in two grooves matching of pipe outer peripheral face, pipe clamp is gone in the groove in the U type red copper, is assembled into one with red copper thermal-arrest plate.

7. induce thermal-collecting tube like the described solar energy of the arbitrary claim of claim 1-6, it is characterized in that: end cap is set in glass outer tube open end; Said end cap be provided with U type red copper in the pore that cooperates of ligament, the glass outer tube is an one through pipe sealing by fusing in end cap and the U type red copper.

8. induce thermal-collecting tube like the described solar energy of the arbitrary claim of claim 1-6, it is characterized in that: have additional soft locating support between the free end of pipe and the glass outer tube blind end in the said U type red copper.