CN2718472Y

CN2718472Y - Solar energy heat-collecting tube

Info

Publication number: CN2718472Y
Application number: CNU032414617U
Authority: CN
Inventors: 涂宏斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-07
Filing date: 2003-05-07
Publication date: 2005-08-17
Anticipated expiration: 2013-05-07

Abstract

The utility model relates to a solar energy heat-collecting tube which particularly adopts the vacuum insulation technique and the greenhouse effect, comprising a fully transparent double-layer glass vacuum tube and a divided solar energy heat-collecting tube with built-in metal or a PVC heat-absorbing tube, wherein, the glass vacuum tube is sheathed outside the heat-absorbing tube and can be freely sheathed on. The utility model is characterized in that with simple production and fabrication technology, low material cost, close arrangement, high light-heat conversion efficiency, and easy use, the utility model is applicable for large solar energy engineering and household water heater.

Description

Solar energy heat collection pipe

The utility model is a kind of solar energy heat collection pipe, particularly uses vaccum thermal insulation technique and greenhouse effects, comprises the separated type solar thermal-collecting tube of bright double-glass evacuated tube of full impregnated and built-in metal or PVC endothermic tube.

Existing solar energy heat collection pipe is the integrated vacuum tube of a kind of full glass heat absorbing type single-pass container (U type).Its inside pipe wall is coated with black absorbing material.When shining upon, heat absorption produces heat, and the water in managing is heated.Be evacuated between the outer wall of U type pipe and the inwall, play the insulation heat insulating function.

Because U type pipe is a kind of heat absorption, adiabatic integrated container structure, following some is not enough so exist: the one, and higher to the ratio of the material requirements of vacuum tube, water leaves in the U type pipe, requires the glass can be high temperature resistant, is not afraid of again simultaneously and freezes; The 2nd, vacuum tube inwall coating technique technological requirement is higher, and general Glassware Factory does not have ability production; The 3rd, container type structure is used in combination and is restricted, and is not easy to the extensive assembling of concentrating; The 4th, structural limitation can not be installed by solid matter, causes the waste of solar energy.

The purpose of this utility model is that a kind of material requirements that designs in order to solve above-mentioned deficiency is low, and processing technology is simple, is convenient to any assembling, and can improve the solar energy heat collection pipe of the efficiency of light energy utilization.

Technical solution of the present utility model is: solar energy heat collection pipe, comprise double-deck column type bilateral full transparent glass pipe and insert its interior metal tube or pvc pipe, vacuum pumping between the double-deck cylinder of glass tube, the length of glass tube can be made different size as required and can connect use, so forms a cylinder " solar energy housing " in cylinder.Metal tube or pvc pipe surface be black (heat absorption rate height) outer through with glass tube in through quite, insert in the glass tube, promptly constitute solar energy heat collection pipe.Under the irradiation of the sun, the water in the metal tube (or pvc pipe) is heated.

Advantage of the present utility model is: 1. production and processing technology is simple, and material requirements is low, does not require the antifreeze glass of high temperature; 2. easy to use, be convenient to Multiple Combination, be fit to the large-sized solar engineering; 3. can dense arrangement, improve luminous flux and solar energy utilization ratio; 4. because material requirements is low, the production and processing simple and convenient assembly will reduce the cost of investment of its solar product greatly.

The best way that realizes the utility model technology has two kinds: the one, make the domestic solar water heater, as shown in Figure 3; The 2nd, be used for the large-sized solar engineering, can be assembled into the solar energy heating plate of different size arbitrarily, as shown in Figure 4.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the structural map of core component glass-vacuum tube of the present utility model, and as Figure of abstract.

Fig. 2 is a separated type solar thermal-collecting tube assembly drawing.

Fig. 3, Fig. 4 are two kinds of solar water heater schematic diagrames realizing the utility model technology.

Tube wall 1 is double-deck full transparent glass body among Fig. 1, and wall chamber 2 is evacuated and is used for thermal insulation, and inner chamber 3 is a bilateral tube column structure, forms sun greenhouse space.

Endothermic tube 1 is high temperature resistant (more than 200 ℃) tubing that one ruler is very little with glass tube 2 inwalls are suitable, the surface scribbles black absorbing material among Fig. 2, and endothermic tube 1 is combined into solar energy heat collection pipe with glass tube 2.

Fig. 3 is domestic solar water heater's schematic diagram.Endothermic tube 1 is the metal tube of a lower end closed among the figure, and rubber stopper 2 is filled in vacuum tube 3 lower ends and played a role in insulation, so promptly constitute one with identical on the market solar water heater.Different is, thermal-collecting tube can be arranged continuously, thereby can improve the thermal efficiency greatly or reduce the volume of water heater.

Fig. 4 is a solar engineering thermal-arrest unit, and thermal-collecting tube 1 is arranged in parallel among the figure, and upper and lower side connects into the grid sheet with return pipe 2 respectively.Return pipe 2 appearances are promptly made the thermal-arrest plate with insulation material 3 parcels.

Claims

1. solar energy heat collection pipe is characterized in that: comprise the separated type solar thermal-collecting tube of bright double-glass evacuated tube of full impregnated and endothermic tube built-in metal or other material, wherein glass tube is enclosed within the endothermic tube outside, but and freedom suit.

2. according to the described solar energy heat collection pipe of claim 1, it is characterized in that vacuum tube is the bright bilateral column structure of full impregnated.

3. according to the described solar energy heat collection pipe of claim 1, it is characterized in that the heat absorption efficiency high high temperature resistant tubing 200 ℃ or more of built-in endothermic tube for matching with vacuum tube.