CN2261600Y

CN2261600Y - Heat conducting vacuum collecting pipe

Info

Publication number: CN2261600Y
Application number: CN96212873U
Authority: CN
Inventors: 韩广田
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-28
Filing date: 1996-05-28
Publication date: 1997-09-03
Anticipated expiration: 2006-05-28

Abstract

The utility model relates to a heat super conducting vacuum collecting pipe, comprising a glass cover pipe (2) and a heat pipe (6) which is arranged in the glass cover pipe and has a heat absorption plate (3). The surface layer of the heat absorption plate is a selective absorption coating. The utility model is characterized in that the glass cover pipe (2) is a high permeability vacuum pipe in a double-layer structure; the heat pipe (6) is sealed in a hollow cavity of the glass cover pipe through a sealing head (1). The utility model overcomes defects existing in the prior art and has simple production process. Compared with the prior art, the utility model can increase production efficiency by multiple, and the production cost of the utility model can be reduced in a large scale.

Description

Hot superconduction vacuum heat collection pipe

The utility model relates to solar thermal collector, relates to a kind of superconduction vacuum heat collection pipe that is used to make solar thermal collector heat specifically.

Solar thermal collector is a kind of energy-saving equipment of wideling popularize in recent years, and the kind of widely using mainly contains following several at present: plate, vexed solarization type and electron tubes type heat collector.And the electron tubes type heat collector is to be acknowledged as one of the most rising product in above-mentioned several solar thermal utilization product.The electron tubes type heat collector is divided into two class formation forms again, and a class is to be the glass vacuum heat collection tube of solar energy formula heat collector that representative is produced with the Solar Energy ﹠ Electronic Factory, Qinghua Univ; Another kind of is to do with Beijing solar energy research to represent the heat pipe vacuum tube hot collector of being produced.

Glass vacuum heat collection tube of solar energy in the above-mentioned glass vacuum heat collection tube of solar energy formula heat collector is the sandwich-type vacuum tube, its cavity is a heat transfer fluid passages, its outer vestlet is the high-intensity Pyrex of high permeability, and the top layer of inner glass tube is gradual change aluminium-nitrogen/aluminium solar selective absorbing coating.Though above-mentioned glass vacuum heat collection tube of solar energy has very high hot property, it is comparatively complicated to exist production technology, apparatus expensive, the big problem of one-time investment; Because of its cavity is a heat transfer fluid passages, in a single day a pipe break, the destruction that will cause whole system are arranged in the use in addition; Moreover, because of its heating principle is the free convection circulation, so the resistance that is produced in the convection circulation process of heating will make its thermal efficiency reduce.

Liu Dazhong is that the heat pipe type vacuum pipe in the heat pipe vacuum tube hot collector produced of representative is made up of the layer glass enclosure tube of vacuum list and the gravity type heat pipe that has absorber plate that is arranged in vacuum tube.Though this structure has overcome the some shortcomings part of above-mentioned glass vacuum heat collection tube of solar energy, in a single day especially having overcome in the use has a pipe break, will cause the weak point of the destruction of whole system; But because it adopts the heavy caliber borosilicate glass tube, this has just caused the obvious rising of its cost, and its price is the twice of glass vacuum heat collection tube of solar energy; In addition, the end socket at its vacuum tube two ends is metal end enclosure, adopts the mode sealing-in of hot pressing, and the difficulty that vacuumizes of heavy caliber tube chamber is also bigger in addition, and this just causes not only making the investment of its process equipment higher, and the sealing-in quality is difficult for guaranteeing, causes its cost to raise.

The purpose of this utility model just is to draw the strong point of said two products, overcomes that it is not enough and provide a kind of manufacture craft simple relatively, lower-cost hot superconduction vacuum heat collection pipe.

The purpose of this utility model can adopt following measure to realize:

Hot superconduction vacuum heat collection pipe of the present utility model comprises glass enclosure tube and the heat pipe that has absorber plate that is placed in the glass enclosure tube, and the top layer of absorber plate is a coating for selective absorption; Its glass enclosure tube is the vacuum tube of double-deck high permeability, and the heat pipe that has absorber plate is encapsulated in by end socket in the cavity of glass enclosure tube, and the heat exchange end on heat pipe top is positioned at outside the glass enclosure tube.

For keeping its long-term vacuum and its intensity of increase, the vacuum cavity of the utility model glass enclosure tube has also been laid the bracing frame of booster action in the vacuum chamber of its underpart except that being placed with getter.

The heat pipe that is adopted in the utility model is a gravity type heat pipe, and this heat pipe is encapsulated in the cavity of glass enclosure tube by the end socket that adopts silastic material to be made into.

Absorber plate in the utility model can be that the double-deck semi-circular ring by two closures fastens and forms, the interlock cavity of formation of two semi-circular ring that heat pipe is arranged in absorber plate; Also can adopt following structure, promptly absorber plate is the double-deck semi-circular ring of a closure, combines by a fastener and heat pipe body; Yet can adopt following structure to realize that absorber plate is a hollow column jecket, combines by connecting plate and heat pipe, forms a monolithic construction; Certainly, absorber plate can also be to constitute along the axial symmetrically arranged ripple lath of heat pipe by two, and is integral the formula structure with heat pipe.

Heat pipe in the utility model and absorber plate all are to adopt aluminum alloy materials to be made, and also are made with copper material.

Because the utility model adopts is that gravity type heat pipe is loaded on frame mode in the double-deck clear glass vacuum vestlet, Guan Buxu plated film in it, this compares with the glass vacuum heat collection tube of solar energy of prior art, can save the top layer plated film of glass inner tube, simplifies its manufacturing process widely; Compare with heat pipe type vacuum pipe and not only can solve the weak point that difficulty is big, cost is high that the heavy caliber tube chamber vacuumizes, and can simplify technology, its vacuum is ensured; This also just makes the utility model production efficiency of products compare above prior art and is increased exponentially, and can make production cost obtain by a relatively large margin reduction.

The drawing of accompanying drawing is described as follows:

Fig. 1 is that master of the present utility model cuts open figure.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3-Fig. 5 is other three kinds of embodiment cross sectional view of absorber plate structure.

The utility model is done with detailed description below with reference to embodiment (accompanying drawing):

As shown in Figure 1, 2, hot superconduction vacuum heat collection pipe of the present utility model is made up of the vacuum tube glass vestlet (2) of double-deck high permeability and the gravity type heat pipe that has absorber plate (3) (6) that is placed in the glass enclosure tube; Absorber plate (3) is that the double-deck semi-circular ring by two closures fastens and forms, the interlock cavity of formation of two semi-circular ring that heat pipe (6) is arranged in absorber plate, and the top layer of absorber plate is a coating for selective absorption; Heat pipe (6) is encapsulated in the cavity of glass enclosure tube (2) by the end socket (1) that adopts silastic material to be made into; The heat exchange segment on heat pipe top (7) is positioned at outside the glass enclosure tube; Be long-term vacuum and its intensity of increase of keeping glass enclosure tube, the vacuum cavity of the utility model glass enclosure tube has also been laid the bracing frame (5) of booster action in the vacuum chamber of its underpart except that being placed with getter (4).

Absorber plate in the utility model also can adopt frame mode as shown in Figure 3, and promptly absorber plate (3) is the double-deck semi-circular ring of a closure, combines by a fastener and heat pipe body (6); Yet can adopt structure as shown in Figure 4 to realize, absorber plate (3) constitutes along the axial symmetrically arranged ripple lath of heat pipe (6) by two, and is integral the formula structure with heat pipe (6); Also can adopt the mode of employing extrusion modling shown in Figure 5 that absorber plate (3) and heat pipe (6) are made into integral structure.

Heat pipe in the utility model and absorber plate all can adopt aluminum alloy materials to make, and also can adopt copper material to make.

Claims

1, a kind of hot superconduction vacuum heat collection pipe, it comprises glass enclosure tube (2) and is placed in the interior heat pipe that has absorber plate (3) (6) of glass enclosure tube cavity, the top layer of absorber plate is a coating for selective absorption, it is characterized in that: glass enclosure tube (2) is the vacuum tube of double-deck high permeability, the heat pipe (6) that has absorber plate (3) is encapsulated in the cavity of glass enclosure tube by end socket (1), and the heat exchange end on heat pipe (6) top is positioned at outside the glass enclosure tube (2).

2, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: the vacuum cavity of glass enclosure tube (2) has also been laid the bracing frame (5) of booster action in the vacuum chamber of its underpart except that being placed with getter (4).

3, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: heat pipe (6) is encapsulated in the cavity of glass enclosure tube (2) by the end socket (1) that adopts silastic material to be made into.

4, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: absorber plate (3) is that the double-deck semi-circular ring by two closures fastens and forms, the interlock cavity of formation of two semi-circular ring that heat pipe (6) is arranged in absorber plate.

5, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: absorber plate (3) is the double-deck semi-circular ring of a closure, combines by a fastener and heat pipe (6) body.

6, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: absorber plate (3) is a hollow column jecket, combines by connecting plate and heat pipe (6), forms a monolithic construction.

7, hot superconduction vacuum heat collection pipe according to claim 1 is characterized in that: absorber plate (3) is to constitute along the axial symmetrically arranged ripple lath of heat pipe by two, and is integral the formula structure with heat pipe (6).

8, according to claim 1 or 4 or 5 or 6 or 7 described hot superconduction vacuum heat collection pipes, it is characterized in that: heat pipe (6) and absorber plate (3) all are to adopt aluminum alloy materials to be made.

9, according to claim 1 or 4 or 5 or 6 or 7 described hot superconduction vacuum heat collection pipes, it is characterized in that: heat pipe (6) and absorber plate (3) all are to be made by copper material.