CN2397446Y

CN2397446Y - Composite heat pipe type vacuum solar heat collector

Info

Publication number: CN2397446Y
Application number: CN99253845U
Authority: CN
Inventors: 石静芬
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-09
Filing date: 1999-11-09
Publication date: 2000-09-20
Anticipated expiration: 2009-11-09

Abstract

The utility model relates to a composite heat pipe type vacuum solar heat collecting pipe, which is composed of a glass vacuum heat collecting pipe, a vacuum connector and a metal condensation end. The glass vacuum heat collecting pipe is composed of a double-layer concentric glass pipe. One end of the double-layer concentric glass pipe is sealed while the other end is opened. Vacuum pumping is implemented between two layers of glass. A selective solar absorption coating is sprayed in a magnetic control mode is arranged on the outer wall of an inner layer glass pipe. The opening end has a glass thread or a glass flange structure. The metal condensation end is connected in a seal model by sealing material or is directly sealed in a fire mode through the vacuum connector, glass threads of the opening end of the glass vacuum heat collecting pipe or a glass flange. A working medium is poured in the inner pipe of the glass vacuum heat collecting pipe. The utility model has the advantages of low cost, good heat transfer effect, incrustations prevention, coldness, heat and shock resistance, and pressure bearing operation.

Description

Composite heat pipe formula vacuum solar heat-collecting pipe

The utility model relates to solar energy heat collection pipe, refers to a kind of composite heat pipe formula vacuum solar heat-collecting pipe especially.

Present existing solar energy heat collection pipe master has following two kinds:

One, metal heat pipe type vacuum pipe: but but advantage is a thermal-arrest part does not leak water, Heat-collecting effect is good, output temperature is high, can not bombing antiscale bearing operation etc.; Shortcoming is that the processing and manufacturing difficulty is big, complex process, cost height, so have only a few countries to produce in the world, China has only a family, is difficult for popularizing.

Two, all-glass vacuum tube: advantage is that technology is simple, low price, Heat-collecting effect is also good, the ratio of performance to price is reasonable, so be easy to popularize; Shortcoming be the directly water inlet of thermal-arrest part, easily scaling, can bombing, the bearing operation voltage endurance capability is limited, is not developing direction from now on.

Main purpose of the present utility model provides a kind of composite heat pipe formula vacuum solar heat-collecting pipe, it can get up the above-mentioned metal heat pipe type vacuum pipe and the advantages of all-glass vacuum tube, and avoid both deficiency, be to be the more outstanding new generation product of the ratio of performance to price.

For realizing above-mentioned purpose, a kind of composite heat pipe formula of the utility model vacuum solar heat-collecting pipe, it is made up of glass heat-collecting vacuum tube, vacuum coupling and metal condensation end three parts; Wherein, glass heat-collecting vacuum tube is made of double-deck concentric glass, and an end is shut, and an end opens wide, and vacuumizes between the layer glass, and magnetron sputtering slective solar energy absorbing coating on the outer wall of inner layer glass tube, this open end are that structure sent out blue by glass screw thread or glass; The metal condensation end is sent out by the glass screw thread of vacuum coupling and glass heat-collecting vacuum tube open end or glass and bluely is tightly connected or direct fire envelope with encapsulant, and irritating in the interior pipe of glass heat-collecting vacuum tube has working media.

Described encapsulant is fluorubber or silicon rubber.

The utility model utilizes the thermal-arrest section that conversion of solar energy is heat energy, passes to the working media in the thermal-arrest section, and working media is heated evaporation, carries heat and moves to heat transfer segment, in the heat transfer segment condensation heat is passed, and working media refluxes and repeats above process.

The utility model compared with prior art has following advantage: the thermal-arrest section is made of the glass that is easy to process and reclaim, heat transfer segment is a metal, integral body is closed not water inlet structure, cheap for manufacturing cost so on the one hand, utilize on the other hand to have and guarantee that card has enough endotherm areas in larger-diameter, the heat pipe structure principle guarantees to have the good heat transfer effect; The waterproof dirt of metal heat transfer section, cold-resistant thermal shock, but and bearing operation, so the advantage of metal heat pipe type vacuum pipe and all-glass vacuum tube effectively can be combined.

Lift a preferred embodiment below in conjunction with accompanying drawing and further describe the utility model.

Fig. 1 is a structural representation of the present utility model.

See also shown in Figure 1ly, a kind of composite heat pipe formula of the utility model vacuum solar heat-collecting pipe is made up of glass heat-collecting vacuum tube 1, vacuum coupling 2 and metal condensation end 3 three parts; Glass heat-collecting vacuum tube 1 is made of the with one heart interior outer glass pipe 11,12 of bilayer, one end 13 is shut, one end 14 opens wide, vacuumize between the layer glass, be similar to the thermos flask of elongation, magnetron sputtering slective solar energy absorbing coating on the outer wall of inner layer glass tube 11, this open end 14 sends out structure blue for glass screw thread or glass; Metal condensation end 3 is sent out by the glass screw thread of vacuum coupling 2 and glass heat-collecting vacuum tube 1 open end 14 or glass and bluely is tightly connected or direct fire envelope with encapsulant, encapsulant can adopt fluorubber or silicon rubber, in the long-time inner glass tube 11 that guarantees glass heat-collecting vacuum tube 1 reliably certain vacuum is arranged, irritating in the interior pipe 11 of glass heat-collecting vacuum tube has working media (as deionized water).

Claims

1, a kind of composite heat pipe formula vacuum solar heat-collecting pipe is characterized in that: it is made up of glass heat-collecting vacuum tube, vacuum coupling and metal condensation end three parts; Wherein, glass heat-collecting vacuum tube is made of double-deck concentric glass, and an end is shut, and an end opens wide, and vacuumizes between the layer glass, and magnetic sputter selective solar energy absorbing coating on the outer wall of inner layer glass tube, this open end are that structure sent out blue by glass screw thread or glass; The metal condensation end is sent out by the glass screw thread of vacuum coupling and glass heat-collecting vacuum tube open end or glass and bluely is tightly connected or direct fire envelope with encapsulant, and irritating in the interior pipe of glass heat-collecting vacuum tube has working media.

2, composite heat pipe formula vacuum solar heat-collecting pipe according to claim 1 is characterized in that encapsulant is fluorubber or silicon rubber.