CN2580364Y

CN2580364Y - Pressure bearabe combined solar heat collection tubes

Info

Publication number: CN2580364Y
Application number: CN02259256U
Authority: CN
Inventors: 赵宝善
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2003-10-15
Anticipated expiration: 2012-10-18

Abstract

The utility model relates to a pressure bearable combined solar heat collecting tube which utilizes solar radiation to heat water. The utility model comprises a full-glass vacuum heat collecting tube with two open ends. The utility model is characterized in that a metal hollow body is sealed in the heat collecting tube, and the outlets of both ends of the metal hollow body are outside. The combined heat collecting tube can bear high pressure, and can also be directly applied to a cyclic type solar water heater, therefore the utility model overcomes the defect that a pressure bearable solar heat collecting tube which is sold in the market at present can not be directly applied to the cyclic type water heater, particularly a natural cyclic type water heater.

Description

But a kind of combined solar energy heat collection pipe of pressure-bearing

But the utility model relates to and utilizes the combined solar energy heat collection pipe of solar radiation with a kind of pressure-bearing of water heating.

What commercially available solar water heater was used at present is very not withstand voltage all-glass vacuum thermal-collecting tube.For making it can bear higher pressure (pressure), some producers have adopted following two kinds of methods:

The one, all-glass vacuum thermal-collecting tube is combined with hot pipe technique, through the heat pipe indirect heat transfer, make water no longer enter all-glass vacuum thermal-collecting tube.

The 2nd, a U-shaped metal catheter is packaged in the all-glass vacuum thermal-collecting tube of an end opening, allow water only just from the U-shaped conduit, pass through.

Yet with regard to the former, it can not be directly used in the circular form water heater, and because technology is comparatively complicated, cost is higher, also is difficult for being accepted by consumers in general.

With regard to the latter, it can only be directly used in the forced circulation type water heater, and can not be directly used in Natural Circulation type water heater, like this, just makes its scope of application be subjected to certain limitation.

The purpose of this utility model is exactly in order to remedy the above-mentioned deficiency of prior art, and it can bear higher pressure, can be directly used in circular form (comprising forced circulation type and Natural Circulation type) water heater again.Need to prove that the technical scheme that the utility model adopted is " a kind of solar thermal collector that the can be used for the circular form water heater " patent application (application number: 02208082.1) derive from the basis of technical scheme that was proposed on March 21st, 2002 at me.This technical scheme has proposed a kind of all-glass vacuum thermal-collecting tube of both ends open, as long as again with two ends outlet metal ducted body outside, for example two ends outlet metal catheter or two ends outlet metal glass liner outside outside is packaged in this thermal-collecting tube, and the problems referred to above just can be readily solved.

In order more clearly to explain concrete structure of the present utility model, be further described below in conjunction with Figure of description and optimal way thereof.

In this manual, but Fig. 1～3 are a kind of schematic diagram of combined solar energy heat collection pipe of pressure-bearing.Metal ducted body among Fig. 1 is a two ends outlet metal glass liner outside, and the metal ducted body among Fig. 2 and Fig. 3 is a two ends outlet metal catheter outside.Metal catheter among Fig. 2 be shaped as waveform, the metal catheter among Fig. 3 be shaped as spirality.

In the accompanying drawings, [1] is the all-glass vacuum thermal-collecting tube of both ends open, and it is made up of two coaxial glass tubes, and two ends are fused together respectively, and interlayer is pumped into vacuum state.Outer tube is a clear glass.Inner tube outer surface is attached with one deck selective heat-absorbing material; A perhaps whole pipe is directly made with antisolar glass.[2] be the metal ducted body.[3] for stopping up (2).By the effect of obturaging of stopping up [3], metal ducted body [2] is that metal catheter or metal glass liner are encapsulated in the all-glass vacuum thermal-collecting tube [1] of both ends open.In order to improve heat transfer efficiency, metal ducted body [2] is that metal catheter or metal glass liner outer surface are attached with one deck selective heat-absorbing material.For the ease of making, stop up [3] and can be assembly parts, also can connect formed mediator after the material cured for heat-resistant adhesive.

Need not give unnecessary details, this combined thermal-collecting tube can bear the metal ducted body, be the higher pressure that metal catheter or metal glass liner can bear, and, because its both ends open,, its import and export and thermal storage water tank are linked together as long as with (or some heat collectors of forming by this thermal-collecting tube) parallel connection of one or some thermal-collecting tubes or be together in series, and be aided with the correlation technique measure, be to be easy to realize the Natural Circulation of water or forced circulation.In addition, the in use golden glass-vacuum tube of this combined thermal-collecting tube can not contact with water, so there is not the anxiety of " bombing " during water on to solar water heater.

At last, of particular note, thermal-collecting tube with above-mentioned functions also can adopt following proposal: is about to an outer surface and is attached with the metal catheter of selective heat-absorbing material or metal glass liner and directly seals (both ends open) with a transparent glass tube, and with its interlayer state that is evacuated.But, because this thermal-collecting tube relates to the sealing-in problem of big specification metal parts and glass, acquire a certain degree of difficulty, and quality is difficult stable, so this technical scheme is open at this in passing, just is not re-used as a patent application and has not proposed specially.

Claims

But 1, a kind of combined solar energy heat collection pipe of pressure-bearing, its composition comprise the all-glass vacuum thermal-collecting tube [1] of both ends open, it is characterized in that: by the effect of obturaging of stopping up [3], be packaged with two ends outlet metal ducted body [2] outside in this thermal-collecting tube.
2, combined solar energy heat collection pipe as claimed in claim 1 is characterized in that metal ducted body [2] is a two ends outlet metal glass liner outside.
3, combined solar energy heat collection pipe as claimed in claim 1 is characterized in that metal ducted body [2] is two ends outlet metal catheter outside, this pipe be shaped as waveform.
4, combined solar energy heat collection pipe as claimed in claim 1 is characterized in that metal ducted body [2] is two ends outlet metal catheter outside, this pipe be shaped as spirality.
5,, it is characterized in that metal ducted body [2] outer surface is attached with one deck selective heat-absorbing material as claim 1,2,3 or 4 described combined solar energy heat collection pipes.