CN201302309Y

CN201302309Y - All-glass vacuum through-type heat-absorbing pipe

Info

Publication number: CN201302309Y
Application number: CNU200820173653XU
Authority: CN
Inventors: 董宜昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-20
Filing date: 2008-10-20
Publication date: 2009-09-02
Anticipated expiration: 2018-10-20

Abstract

The utility model provides a solution to the breaking problem of an all-glass vacuum through-type heat-absorbing pipe due to temperature difference. A segment or a plurality of segments of U-V-shaped threaded glass pipes are additionally arranged on a smooth inner glass pipe and a smooth outer glass pipe to resolve the expansion stress of temperature difference between the inner glass pipe and the outer glass pipe and balance the rising and shrinking amount of the temperature difference between the inner glass pipe and the outer glass pipe so as to achieve the purpose of non-breaking. Compared with the prior art, the all-glass vacuum through-type heat-absorbing pipe solves the four difficult problems that: firstly, the all-glass vacuum through-type solar heat-absorbing pipe is easy to be broken, which is solved to achieve the same insulation effect as a glass-liner-type heat-absorbing pipe; secondly, the glass-liner-type heat-absorbing pipes are not connected in series, while the all-glass vacuum through-type heat-absorbing pipes can be connected in series at random; thirdly, the all-glass vacuum through-type heat-absorbing pipes which are connected in series can obtain high energy at random temperature to provide heat source for high-temperature carriers; finally, the all-glass vacuum through-type solar heat-absorbing pipe which is of a through pipe can be sleeved with a high bearing metal inner pipe to be made into a special pipe for an internal condensation solar power station.

Description

The all-glass vacuum through type endothermic tube

Technical field:

The utility model relates to a kind of manufacturing process of anti-crushing all-glass vacuum through type endothermic tube.

Background technology:

At present in the vacuous solar energy endothermic tube, the bottle liner type solar energy heat absorbing has been in control to be used and development, solved low-temperature water heating bathing thermal source, reduce greenhouse effects, energy savings, in middle high temperature solar thermal source solution, all-glass vacuum through type solar heat absorbing tube is unique solution thermal source scheme, but pipe in the all-glass vacuum through type solar heat absorbing tube is not owing to there is the same expansion space of pipe in the bottle liner type solar vacuum heat absorbing pipe, all-glass vacuum through type solar heat absorbing tube is because altitude temperature difference effect percentage of damage 100%, the imagination of through solar energy heat absorption pipe can not be assisted enforcement, become a kind of fantasy, the broken problem that how to solve the all-glass vacuum through type endothermic tube has become the core of high temperature solar endothermic tube in the solution.

Summary of the invention:

The purpose of this utility model provides a kind of solution that solves the fragmentation of the all-glass vacuum through type solar heat absorbing tube temperature difference, this solution be on inside and outside smooth glass pipe, increase by one section or several sections U-V type screw thread glass tubes dissolve in outer glass pipe temperature difference swelling stress, outer glass pipe temperature difference harmomegathus amount in the balance, reach chip-proof purpose, U-V type screw thread glass tube can increase the pipe range of U-V type screw thread glass tube according to the decision of the swell value of glass tube, the swell increment of the pipe L that is directly proportional with temperature, length and thickness in the high-boron-silicon glass ₁=(3.3x10 ^-6) xT ₁XLxh, high-boron-silicon glass outer tube amount of contraction and temperature, length and the thickness L that is inversely proportional to ₂=(3.3x10 ^-6) x-T ₂XLxh, (3.3x10 in the formula ^-6) be the coefficient of expansion of high borosilicate, T ₁Be the glass inner tube endothermic temperature, T ₂Be glass outer tube exothermic temperature, L is inside and outside glass pipe range, L ₁Be the swell increment after pipe is heated in the high-boron-silicon glass, L ₂Be the amount of contraction of high borosilicate outer glass pipe zubzero temperature, h is a thickness of glass, and X% is the additional margin of the U-V type screw thread glass tube of increase, the temperature magnification L of U-V type screwed pipe ₃Can get L by computing formula ₃=L ₁/ L ₂XX% has solved the broken problem of glass tube, and middle high temperature solar could be realized.

This all-glass vacuum through type endothermic tube includes outer glass pipe, inner glass tube, heat absorbing coating, getter, the mouth of finding time, it is characterized in that: on inner glass tube and outer glass pipe, respectively increase by one section or several sections screw thread glass tube that has the U-V type, interior optically focused parabolic plate, metal tube, the annexation of this all-glass vacuum through type endothermic tube is: outer glass pipe and inner glass tube two ends weld, the mouth of finding time is opened a end at all-glass vacuum through type solar heat absorbing tube, outer U-V type screw thread glass tube is connected with outer glass pipe, interior U-V type screw thread glass tube is connected with inner glass tube, the heat absorbing coating coated is at the outer surface of inner glass tube, getter is placed in the both ends or one end of all-glass vacuum through type endothermic tube, metal tube is socketed in the inner glass tube, and interior optically focused parabolic plate is by leaning against in the vacuum tube near the outer glass pipe side.

This all-glass vacuum through type endothermic tube has compared with prior art solved the four problems of solar energy heat absorption pipe, and one, solved the broken problem of all-glass vacuum through type endothermic tube, reached the heat insulation effect same with the bottle liner type solar energy heat absorption pipe.Two, solved the difficult problem that the bottle liner type solar energy heat absorption pipe can not be connected, the all-glass vacuum through type endothermic tube can be connected arbitrarily.Three, can be connected in series by the all-glass vacuum through type endothermic tube and can obtain the high heat of the arbitrary temp that needs, provide thermal source to higher temperature carrier.Four, because the all-glass vacuum through type endothermic tube is a through tube, but the high pressure-bearing metal inner pipe of socket is made internal light-focusing solar power station dedicated pipe.

U-V type screwed pipe in this from the above all-glass vacuum through type endothermic tube can increase the pipe range of U-V type screwed pipe according to the swell value decision of glass tube.

Description of drawings:

Accompanying drawing shows the embodiment of all-glass vacuum through type endothermic tube, wherein Fig. 1, Fig. 2 are respectively the front views of the through endothermic tube of the full glass of vacuum, in Fig. 1, the 1st, outer glass pipe and inner glass tube two ends weld end, 2, the 3rd, outer U-V type screw thread glass tube, 5, the 7th, interior U-V type screw thread glass tube, the 4th, outer glass pipe, the 6th, inner glass tube, the 10th, the mouth of finding time, the 11st, getter, the 12nd, interior optically focused parabolic plate, the 14th, heat absorbing coating, in Fig. 2, the 8, the 9th, the recessed U-V type of outer glass pipe screw thread glass 13 is metal tubes.

Specific embodiment:

In specific embodiment 1, the all-glass vacuum through type endothermic tube includes outer glass pipe 4, outer U-V type screw thread glass tube 2,3, inner glass tube 6, interior U-V type screw

thread glass tube

5,7, heat absorbing coating 14, getter 11, the mouth 10 of finding time, interior optically focused parabolic plate 12, metal tube 13, its annexation is: outer glass pipe 4 welds with inner glass tube 6 two ends 1, and the mouth 10 of finding time is opened the end at all-glass vacuum through type solar heat absorbing tube 1, outer U-V type screw

thread glass tube

2,3,8,9 are connected with outer glass pipe 4, interior U-V type screw

thread glass tube

5,7 are connected with inner glass tube 6, and heat absorbing coating 14 is coated on the outer surface of inner glass tube 6, and getter 11 is placed in the both ends or one end of all-glass vacuum through type endothermic tube.

In specific embodiment 2, metal tube 13 is socketed in the inner glass tube 6.

In specific embodiment 3, interior optically focused parabolic plate 12 is by a side of close outer glass pipe 4 in the vacuum tube that leans against between inner glass tube 6 and the outer glass pipe 4.

In specific embodiment 4, the U-V type screw thread glass tube the 2, the 3rd in the outer glass pipe 4, one or more protruding U types or protruding shape-V thread glass tube, the U-V type screw thread glass tube the 5, the 7th in the inner glass tube 6, one or more protruding U types or a plurality of protruding shape-V thread glass tube.

In specific embodiment 5, the U-V type screw thread glass tube the 8, the 9th in the outer glass pipe 4, one or more recessed U types or recessed shape-V thread glass tube, the U-V type screw thread glass tube the 5, the 7th in the inner glass tube 6, a plurality of recessed U types or a plurality of recessed shape-V thread glass tube.

In specific embodiment 6, the tube swelling amount L that is directly proportional with temperature, length and thickness in the high-boron-silicon glass ₁=(3.3x10 ^-6) xT ₁XLxh, high-boron-silicon glass outer tube amount of contraction and temperature, length and the thickness L that is inversely proportional to ₂=(3.3x10 ^-6) x-T ₂XLxh, the temperature magnification L of U-V type screwed pipe ₃=L ₁/ L ₂XX%.

Claims

1, a kind of all-glass vacuum through type endothermic tube includes outer glass pipe (4), inner glass tube (6), heat absorbing coating (14), getter (11), the mouth (10) of finding time, it is characterized in that: newly-increased being added with: outer U-V type screw thread glass tube (2,3), interior U-V type screw thread glass tube (5,7), interior optically focused parabolic plate (12), metal tube (13), its annexation is: outer glass pipe (4) welds with inner glass tube (6) two ends (1), the mouth (10) of finding time is opened a end at all-glass vacuum through type endothermic tube (1), outer U-V type screw thread glass tube (2,3,8,9) be connected interior U-V type screw thread glass tube (5 with outer glass pipe (4), 7) be connected with inner glass tube (6), heat absorbing coating (14) is coated on the outer surface of inner glass tube (6), and getter (11) is placed in the both ends or one end of all-glass vacuum through type endothermic tube.

2, all-glass vacuum through type endothermic tube according to claim 1 is characterized in that: metal tube (13) is socketed in the inner glass tube (6).

3, all-glass vacuum through type endothermic tube according to claim 1 is characterized in that: interior optically focused parabolic plate (12) is by a side of close outer glass pipe (4) in the vacuum tube that leans against between inner glass tube (6) and the outer glass pipe (4).

4, all-glass vacuum through type endothermic tube according to claim 1, it is characterized in that: the U-V type screw thread glass tube (2,3) in the outer glass pipe (4) is one or more protruding U types or protruding shape-V thread glass tube, and the U-V type screw thread glass tube (5,7) in the inner glass tube (6) is one or more protruding U types or a plurality of protruding shape-V thread glass tube.

5, all-glass vacuum through type endothermic tube according to claim 1, it is characterized in that: the U-V type screw thread glass tube (8,9) in the outer glass pipe (4) is one or more recessed U types or recessed shape-V thread glass tube, and the U-V type screw thread glass tube (5,7) in the inner glass tube (6) is a plurality of recessed U types or a plurality of recessed shape-V thread glass tube.

6, all-glass vacuum through type endothermic tube according to claim 1 is characterized in that: the tube swelling amount L that is directly proportional with temperature, length and thickness in the high-boron-silicon glass ₁=(3.3 * 10 ^-6) * T ₁* L * h, high-boron-silicon glass outer tube amount of contraction and temperature, length and the thickness L that is inversely proportional to ₂=(3.3 * 10 ^-6The T of) *- ₂* L * h, the temperature magnification L of U-V type screwed pipe ₃=L ₁/ L ₂* X%.