CN201050896Y

CN201050896Y - Split type vacuum solar energy heat collection tube and hot water device

Info

Publication number: CN201050896Y
Application number: CNU2007200315242U
Authority: CN
Inventors: 柴文武; 张恩学
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-05
Filing date: 2007-04-05
Publication date: 2008-04-23
Anticipated expiration: 2017-04-05

Abstract

A split solar heat collecting tube comprises a casing composed of two layers of coaxial transparent glass tubes, with sealing structure and a vacuumed interlayer, wherein the chamber of the glass vacuum tubes is mounted with a metal inner barrel for storing heated water, the glass casing is sheathed outside the metal inner barrel, which two ends are stuffed with thermal insulation material. The water heater is composed of serially connected heat collecting tubes via tubes, with interlayer water tube structure. The utility model separates vacuum thermal insulation and water pressure bearing functions of the heat collecting tube, while the vacuum transparent glass casing only transmits sunlight and avoid external transmission of inner temperature. The metal inner tube bears internal standard water pressure at atmosphere pressure. All metal tubes are connected via standard tubes, to bear normal water pressure under projection.

Description

Split type vacuum solar heat-collecting pipe and hot water apparatus

Technical field:

The utility model belongs to the energy environment protection technical field, particularly a kind of split type vacuum solar heat-collecting pipe and hot water apparatus.

Background technology

Typical all glass vacuum heat collection tube of solar energy is since domestic large-scale popularization is used, and structure and manufacturing process are stable, the technology comparative maturity.But easy explosion when at present there be under the big temperature difference (empty shine, freezing) in this single-ended opening vacuum heat collection pipe that accounts for the market mainstream, can only intermittent water application, must place eminence, must carry on the back water-butt, problem can't be installed on skyscraper etc., influence popularizing and using more widely of this technology.Therefore, the new solar pipe of research and development should overcome above shortcoming now, possesses abilities such as can being with pressure and any combination installation for a long time.But very big technology resistance is all run in the effort that many people carry out for this reason, and the various versions of development all are difficult to reach the practical project instructions for use.The major obstacle that influence technique breaks through is from the limitation of mature technology structure thinking.

Summary of the invention

The utility model purpose provides a kind of split type vacuum solar heat-collecting pipe and hot water apparatus, the problem of easy explosion when having under the big temperature difference (empty shine, freezing) to overcome existing opening vacuum heat collection pipe.

Specifically, a kind of split type vacuum solar heat-collecting pipe, comprising being made up of double-layer coaxial full transparent glass pipe has hermetically-sealed construction and shell that interlayer vacuumizes, it is equipped with the heated water metal inner core of storage in the middle of the glass-vacuum tube internal cavity, and glass shell is sleeved on two fill insulant material behind the outer correct position of metal inner core.

Metal inner core two ends are shaped on the standard pipe thread that can be connected to water supply and water pipeline with the standard pipe fitting.

Metal inner bobbin outer wall scribbles increases the endothermic effect black coating.

Described hot water apparatus is the thermal-collecting tube of said structure to be connected by pipe fitting constitute.

Main innovate point of the present utility model and advantage are:

1. the vacuum heat-insulation with thermal-collecting tube separates fully with the function of bearing hydraulic pressure, and these two functions are indivisible in structure before this.The full transparent glass shell that vacuumizes in this programme is only born through sunlight and is prevented the outwards heat-blocking action of conduction of internal temperature; Under atmospheric condition, bear pipe internal standard hydraulic pressure by metal inner pipe, connect with the standard pipe fitting between each metal tube, can under engineering state, bear normal hydraulic pressure and not go out any problem.

2. be heated water and be stored in the metal inner core 2 that places glass evacuated insulating tube middle, water directly and glass contact can not avoided the water-stop problem between the problem includes: the hermetic seal of glass and metal that each scheme till settled the present all must problem (all-glass vacuum tube need not) and glass tube and the storage tank.Though because the metal glass coefficients of expansion different with the coefficient of expansion of glass material, same material are identical, suffered temperature and pressure difference can cause in the use bursting, gas leak phenomenon.The full coating film on glass evacuated solar collector of widely used single-ended outlet exists glass tube and metal bucket poor sealing to leak easily at present in addition, and more impossible band pressure uses, and becomes the bottleneck that solar energy uses, and is solved in present technique.

3. double-layer glass tube is that logical structure is used at two ends, does not need any plated film and so on to handle, and the simple yield rate height of technology can increase substantially the yield rate and the safety in utilization of thermal-collecting tube; And the cleaning of assurance hot water.

4. owing to adopt communicating structure, each thermal-collecting tube can be connected into polyphone when being linked to be heat collector.When the quantity of illumination is sufficient, can realize continuous heat supply water like this;

5. because the water route is all-metal construction (perhaps being connected with plastic-aluminum pipe or PVC water pipe), the compression resistance characteristic fully can be identical with supply channel, solved the safety problem that everybody is concerned about most; That is to say that the thermal-collecting tube of this form can be with the work of normal water pressure for a long time, be not related to and close water valve, (do not allow to close yet, when in the pipe during temperature rising volumetric expansion unnecessary hydraulic pressure return upper hose, it is stable to keep-up pressure), can superpressure; Also can replenish automatically during lack of water, open water is arranged at any time, avoid empty and shine to guarantee outlet valve; Even the water temperature deficiency is had a bath (less than 30C) in the winter time, also can be used for other washings, can be very not cool, play energy-conserving action in the same old way.

6. above characteristics make this device be adapted at the skyscraper concentrated suspension of a side exterior wall on the sunny side and use, not only attractive in appearance but also can reduce the influence of unfavourable weathers such as accumulated snow, high wind, solved the limitation of the heat collector use of present structure, used for the more extensive and more extensive connection in series-parallel of solar energy and bring new opportunity; Also can develop the hot water energy that utilizes that makes new advances on the basis of this kind heating form does work or other application items;

7. the new solar thermal collector based on the thermal-collecting tube of this structure has temperature sensor and user's temperature indicating device, and more convenient user understands water temperature at any time, and safe and reasonable is used.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the lateral plan of Fig. 1.

Fig. 3 is the structural representation of the utility model hot water apparatus.

The specific embodiment

Shown in accompanying drawing 1-2, a complete vacuum heat collection pipe is made up of

glass shell

1 and 2 two major parts of metal inner core.Shell 1 is formed hermetically-sealed construction by double-layer coaxial full transparent glass pipe, and interlayer vacuumizes, and metal inner core 2 is metal tubes, places in the middle of the glass-vacuum tube internal cavity, and heated water is stored in inner core 2 the insides, not direct and glass contact; Glass shell 1 is sleeved on two fill insulant material behind the metal inner core 2 outer correct positions, there is standard pipe thread at metal inner core 2 two ends, can be connected to the standard pipe fitting and supply water and the water pipeline, the metal tube outer wall bears pipe internal standard hydraulic pressure under atmospheric condition, and the outer blacking of metal tube increases endothermic effect; In other words, 2 two parts of vacuum glass shell 1 and metal inner core are fully separately to make, and need not blacking in the glass tube with vacuum.Just in the blacking of metal inner tank theca, not only reduced the requirement to the blacking coating, and guaranteed the cleaning of water, this is and the main distinction of all similar structures so far.A plurality of glass shells 1 can be set on the metal inner core 2 and link to each other, connect the Inlet and outlet water joint 4 that is used to connect water down or is connected at metal inner core 2 two ends with thermal-collecting tube with insulation joint 3.

As shown in Figure 3, hot water apparatus is the thermal-collecting tube of above-mentioned sandwich water pipe structure to be connected by pipe fitting constitute.

Claims

1. split type vacuum solar heat-collecting pipe, comprise forming and have shell hermetically-sealed construction and that interlayer vacuumizes (1) by double-layer coaxial full transparent glass pipe, it is characterized in that being equipped with in the middle of the glass-vacuum tube internal cavity storage heated water metal inner core (2), glass shell (1) is sleeved on two fill insulant material behind the outer correct position of metal inner core (2).

2. split type vacuum solar heat-collecting pipe according to claim 1 is characterized in that metal inner core (2) two ends are shaped on the standard pipe thread that can be connected to water supply and water pipeline with the standard pipe fitting.

3. according to claim 1 or 2 described split type vacuum solar heat-collecting pipes, its feature metal inner core (2) pipe outer wall scribbles and increases the endothermic effect black coating.

4. the split type vacuous solar energy hot water device that always utilizes the thermal-collecting tube of said structure to make is characterized in that it being that above-mentioned thermal-collecting tube with sandwich water pipe structure is constituted by the pipe fitting series connection.