CN202485255U - S-shaped corrugated pipe for solar energy - Google Patents
S-shaped corrugated pipe for solar energy Download PDFInfo
- Publication number
- CN202485255U CN202485255U CN 201220060805 CN201220060805U CN202485255U CN 202485255 U CN202485255 U CN 202485255U CN 201220060805 CN201220060805 CN 201220060805 CN 201220060805 U CN201220060805 U CN 201220060805U CN 202485255 U CN202485255 U CN 202485255U
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- bellows
- shape
- solar energy
- heat
- trough
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses an S-shaped corrugated pipe for solar energy. The surface of a pipe body has a corrugated structure; the distance between openings between two adjacent wave crests is less than the width of a trough, and the wave crests and the troughs which are adjacent to one another are in arc transition and appear to be S-shaped. According to the S-shaped corrugated pipe for the solar energy, the tensile force or the pressure of a heat collecting pipe to a glass pipe due to expansion caused by heat and contraction caused by cold can be eliminated, the variation under the expansion caused by heat and contraction caused by cold can be reduced, and thus the service life of the S-shaped corrugated pipe can be prolonged.
Description
Technical field
The utility model belongs to solar light-heat power-generation vacuum heat collection pipe technical field, relates to a kind of solar energy with S shape bellows.
Background technology
The generating of solar energy optical-thermal slot type is a kind of of solar electrical energy generation; The solar light-heat power-generation vacuum heat collection pipe is a core component, has only corrugated stainless steel tubing-metal-glass sealing glass pipe can satisfy the long-life specification requirement of solar light-heat power-generation vacuum heat collection pipe at present.
At present, the bellows that adopts of solar light-heat power-generation vacuum heat collection pipe is the bellows of U-shaped bellows or other shape at home.The bellows of U-shaped bellows or other shape receives the restriction of installing space, can not do very greatly, very long, the extended distance between the crest of U-shaped bellows is identical with the extended distance of trough, when stressed, is out of shape little; When power transmission; Directly mozzle is expanded with heat and contract with cold and changed power biography and the glass tube that produces; Can not eliminate pulling force or pressure and heat shock resistance to glass tube that the stainless steel diversion pipe is expanded with heat and contract with cold and change to produce effectively, glass tube is stressed to break thereby make, and shorten service life.
Summary of the invention
The purpose of the utility model has provided a kind of solar energy with S shape bellows, eliminates pulling force or the pressure to the glass tube that are expanded with heat and contract with cold and produce in the thermal-collecting tube, and the variable quantity that reduces to expand with heat and contract with cold has improved service life.
The technical scheme that the utility model adopted is, a kind of solar energy is with S shape bellows, and the body surface is a ripple struction, and the distance of opening and adopts arc-shaped transition S-shaped less than the width of trough between adjacent two crests between adjacent peaks and the trough.
The characteristic of the utility model also is,
Bellows wall thickness δ=0.2 ~ 0.35mm, external diameter Φ D=100 ~ 140mm, internal diameter Φ d=80 ~ 90mm, port diameter Φ d1=80 ~ 100mm; Pitch of waves t=8 ~ 10mm, crest, trough radius R=2.5 ~ 3.5mm, height H=50 ~ 60mm; The high h=5mm of port straight flange, wave number n=4 ~ 5, hem width l=5mm.
The solar energy of the utility model is with S shape bellows; Can make wave number Duo 1 than the bellows of other shape in equal space, the radius R of crest or trough is superior to the bellows of other shape also than the big 0.5mm of bellows of other shape owing to wave number, radius R; The ability that self eliminates stress is greater than the bellows of other shape; Simultaneously, the rigidity of S shape bellows is less than the bellows of other shape, and displacement range is greater than the bellows of other shape.S shape bellows can reduce or eliminate heat shock resistance power effectively and changed deflection and the deformation force that produces with more expanding with heat and contract with cold at mozzle, makes to adopt prolong the service life of S shape bellows solar light-heat power-generation vacuum heat collection pipe.
Description of drawings
Fig. 1 is the structural representation of the utility model solar energy with S shape bellows.
Among the figure, 1. crest, 2. trough, δ is a wall thickness, and Φ D is an external diameter, and Φ d is an internal diameter, and Φ d1 is a port diameter, and t is the pitch of waves, and R is crest, trough radius, and H is a height, and h is the port straight side length, and n is a wave number, and l is a hem width.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
The utility model solar energy is as shown in Figure 1 with the structure of S shape bellows; The body surface is a ripple struction; The distance of opening is less than the width of trough 2 between two crests 1, and adopts arc-shaped transition between adjacent peaks 1 and the trough 2, and is S-shaped between adjacent peaks 1 and the trough 2.
Concrete, wall thickness δ=0.2 ~ 0.35mm; External diameter Φ D=100 ~ 140mm; Internal diameter Φ d=80 ~ 90mm; Port diameter Φ d1=80 ~ 100mm; Pitch of waves t=8 ~ 10mm; Crest, trough radius R=2.5 ~ 3.5mm; Height H=50 ~ 60mm; The high h=5mm of port straight flange; Wave number n=4 ~ 5; Hem width l=5mm.
The utility model solar energy makes through shaped by fluid pressure equipment and shaping tool processing with S shape bellows; Solar vacuum heat-collecting pipe is with S shape bellows; Role is in solar vacuum heat-collecting pipe: the high temperature that when solar vacuum heat-collecting pipe receives solar light irradiation, gathers 300 ~ 450 ℃ of generations; Make the stainless steel diversion pipe expanded by heating in the solar vacuum heat-collecting pipe, produce very big thermal expansion distortion and expansive force; When no solar light irradiation, during normal temperature or the thermal-collecting tube temperature when changing, the variation that the stainless steel diversion pipe in the thermal-collecting tube is caught a cold and shunk.Eliminate pulling force or the pressure that the stainless steel diversion pipe is expanded with heat and contract with cold and produces, the variable quantity that reduces to expand with heat and contract with cold with S shape bellows to glass tube.S shape bellows has been eliminated the metal-glass unmatched sealing and has been caused stress big, causes problems such as thermal-collecting tube bursts, heat shock resistance.
The utility model solar energy can be in equal space with S shape bellows; Can make wave number Duo 1 than the bellows of other shape, the radius R of crest or trough is the big 0.5mm of bellows of comparable other shape also, is superior to the bellows of other shape owing to wave number, R; The ability that self eliminates stress is greater than the bellows of other shape; Simultaneously, the rigidity of S shape bellows is less than the bellows of other shape, and displacement range is greater than the bellows of other shape.S shape bellows can reduce or eliminate heat shock resistance power effectively and changed deflection and the deformation force that produces with more expanding with heat and contract with cold at mozzle, makes to adopt prolong the service life of S shape bellows solar light-heat power-generation vacuum heat collection pipe, reaches more than 20 years.
The utility model solar energy has good plasticity, high elastic limit, tensile strength and fatigue strength, good welding performance, stable elastic performance with S shape bellows.Because the rigidity of S shape bellows self is very little and the characteristics of waveform, stroke ability big, that absorb external force is big under the effect of external force, and outwards the effect of power transmission is little.S shape bellows is applied to the solar light-heat power-generation thermal-collecting tube, utilizes the elastic reaction of bellows, and it is pulling force or pressure that the elimination metal-glass receives the thermogenetic variation of expanding with heat and contract with cold.Have good flexibility and fatigue resistance, make it be easy to absorb the cyclic loading of various motion deformations, the ability of compensation big displacement quantity is especially arranged in pipe-line system.S shape bellows has high pressure resistant (more than the nominal pressure 10Mpa (600lb)), high temperature resistant (temperature is higher than 450 ℃), corrosion-resistant and long-life, non-maintaining characteristics.
The utility model S shape bellows and the contrast of existing U-shaped bellows: in equal inside and outside footpath size, wall thickness, under the situation of the pitch of waves, because the characteristics of S shape are that R is big, power transmission is even, and flexible good, rigidity is little, and therefore, the bellows life-span of S shape is long; Under the situation of the equal pitch of waves, the R of U-shaped bellows makes its power transmission inhomogeneous less than S shape bellows, and is flexible poorer than S shape, and long-time stressed being prone to broken at the R place, and the U-shaped bellows life-span is short.
Through detecting the bellows operating temperature of the utility model :-195 ~+450 ℃; Single ripple axial rigidity: 40 ~ 65N/mm; Maximum axial displacement: the 4 ~ 5mm that allows of single ripple; Maximum compression resistance: 10MPa;
Vacuum: 5 * 10
-4Pa; Opening under the condition of 20mm, the fatigue life＞10,000 times.
Claims (2)
1. a solar energy is characterized in that with S shape bellows, and the body surface is a ripple struction, and the distance of opening and adopts arc-shaped transition S-shaped less than the width of trough (2) between adjacent two crests (1) between adjacent peaks (1) and the trough (2).
2. solar energy according to claim 1 is characterized in that with S shape bellows, bellows wall thickness δ=0.2 ~ 0.35mm; External diameter Φ D=100 ~ 140mm, internal diameter Φ d=80 ~ 90mm, port diameter Φ d1=80 ~ 100mm; Pitch of waves t=8 ~ 10mm, crest, trough radius R=2.5 ~ 3.5mm, height H=50 ~ 60mm; The high h=5 mm of port straight flange, wave number n=4 ~ 5, hem width l=5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060805 CN202485255U (en) | 2012-02-24 | 2012-02-24 | S-shaped corrugated pipe for solar energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060805 CN202485255U (en) | 2012-02-24 | 2012-02-24 | S-shaped corrugated pipe for solar energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485255U true CN202485255U (en) | 2012-10-10 |
Family
ID=46959673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220060805 Expired - Lifetime CN202485255U (en) | 2012-02-24 | 2012-02-24 | S-shaped corrugated pipe for solar energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485255U (en) |
-
2012
- 2012-02-24 CN CN 201220060805 patent/CN202485255U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |