CN101706094A - Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe - Google Patents

Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe Download PDF

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Publication number
CN101706094A
CN101706094A CN200910154612A CN200910154612A CN101706094A CN 101706094 A CN101706094 A CN 101706094A CN 200910154612 A CN200910154612 A CN 200910154612A CN 200910154612 A CN200910154612 A CN 200910154612A CN 101706094 A CN101706094 A CN 101706094A
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CN
China
Prior art keywords
pipe
sleeve pipe
outer tube
sleeve
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910154612A
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Chinese (zh)
Inventor
王武军
俞自涛
胡亚才
倪煜
樊建人
洪荣华
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN200910154612A priority Critical patent/CN101706094A/en
Publication of CN101706094A publication Critical patent/CN101706094A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a coaxial sleeve type and groove type solar heat collection pipe module of a single-layer glass pipe. One end of an inner pipe of a sleeve pipe is connected with a condensed water main pipe by a condensed water inlet pipe, both ends of the condensed water main pipe are provided with flanges, an outer pipe of the sleeve pipe is sheathed outside the inner pipe of the sleeve pipe, the other end of the inner pipe of the sleeve pipe is communicated with the outer pipe of the sleeve pipe, the connection end of the outer pipe of the sleeve pipe and the inner pipe of the sleeve pipe is connected with one end of a steam outlet pipe, the other end of the steam outlet pipe is connected with a steam main pipe, both ends of the steam main pipe are provided with flanges, a U-shaped glass pipe is sheathed outside the outer pipe of the sleeve pipe and is connected with the outer pipe of the sleeve pipe in a sealed way by a special alloy sealing cover, and both ends of the U-shaped glass pipe are fixed on the outer pipe of the sleeve pipe by two heat-insulation supporting components. The invention transmits the absorbed heat energy into equipment which needs to utilize the heat energy effectively; and the entire heat collection pipe has high efficiency, simple structure, modularization design, convenient installation, high positioning accuracy and low production cost, can be used in large area and provides probability for the popularization of the intermediate-temperature and high-temperature utilization of solar energy.

Description

Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe
Technical field
The present invention relates to the groove type solar thermal-collecting tube, relate in particular to a kind of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe.
Background technology
High-temperature steam was to use straight-through thermal-collecting tube mostly during overseas utilization solar energy produced, and to be liquid flow to the other end by an end of thermal-collecting tube to the course of work of this thermal-collecting tube, and thermal-collecting tube absorbs the sunlight heating working medium, finally produces steam in outlet.But this system exists the welding procedure of following problem (1) glass and steel still immature, the generating usefulness straight pipe at hot conditions to having relatively high expectations of sealing, complex process, yield rate is low, causes price high; (2) need to add bellows at two ends in order to solve the steel problem different with the glass swelling coefficient, complex structure is easy to generate moment of torsion under the situation of unbalance stress, causes sealing two ends to produce big stress.Traditional U type pipe also has application at present, but also exists a large amount of problems: (1) because the internal diameter of glass tube with vacuum is fixed, so the external diameter of every metal tube of traditional U type pipe can not surpass vacuum tube half, general caliber is less, flow resistance is big; (2) because caliber is less, and extended distance is longer, and it is not enough to form rigidity easily, end rides against and causes the vacuum glass tracheal rupture on the glass tube with vacuum; (3) mouth of pipe is not easy sealing.Also occurred in the process that traditional coaxial sleeve U type thermal-collecting tube uses at the scene difficulty is installed, thermal-collecting tube position installation accuracy is relatively poor, the high inadequately many problems of efficient.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of reliability height, simple in structure, low cost are provided, easy for installation and precision is high, be convenient to the coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe that large tracts of land is promoted.
Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe comprises first flange, main steam range, steam outlet pipe, second flange, the 3rd flange, the annular shutoff, the sleeve pipe outer tube, vacuum pumping opening, the alloy seal cover, the first heat insulation support member, U type glass tube, pipe in the sleeve pipe, metallic supports, the second heat insulation support member, shutoff, the 4th flange, the condensed water house steward, the condensing water inlet pipe, an end of pipe is connected with the condensed water house steward by the condensing water inlet pipe in the sleeve pipe, condensed water house steward's a end is connected with the 3rd flange, the other end is connected with the 4th flange, sleeve pipe outer tube sleeve tube outside in sleeve pipe, the other end of pipe communicates with the sleeve pipe outer tube in the sleeve pipe, one end of sleeve pipe outer tube is connected by pipe in annular shutoff and the sleeve pipe, the other end is sealed with shutoff, the sleeve pipe outer tube is connected with an end of steam outlet pipe with the link of the interior pipe of sleeve pipe, the other end of steam outlet pipe is connected with main steam range, one end of main steam range is connected with first flange, the other end is connected with second flange, U type glass tube is enclosed within the outer tube outside of sleeve pipe, and be tightly connected by alloy seal cover and sleeve pipe outer tube, the two ends of U type glass tube are fixed on the sleeve pipe outer tube by the first heat insulation support member and the second heat insulation support member, and the alloy seal cover is provided with vacuum pumping opening and is used to vacuumize.
Pipe is a coaxial arrangement with the sleeve pipe outer tube in the described sleeve pipe, is provided with metallic supports between the pipe in sleeve pipe outer tube end and the sleeve pipe, and the position coaxial arrangement of sleeve pipe outer tube and U type glass tube is provided with support member between sleeve pipe outer tube and the U type glass tube.
The present invention is adopting coaxial sleeve as the thermal-collecting tube main body; be coated with the sunshine absorber coatings at outer tube outer wall; the maximum focusing light belt that allows like this is the cross section at the diameter place of outer tube just; avoided because the strict significantly increase of controlling the focusing system cost that focuses on light belt and bring; having reduced the cost of whole system. the sectional area of inside and outside two passages of coaxial sleeve structure is compared with traditional U type pipe and is twice; improved the uniformity in flow field simultaneously; significantly reduced flow resistance; improved heat transfer efficiency; simultaneously also make things convenient for the sun light belt of groove type paraboloid focusing mirror to drop on the thermal-collecting tube fully. in addition; the tube outside has been adopted the single-glass pipe and has been evacuated outside sleeve pipe; reduced the glass number of plies that traditional coaxial sleeve adds the vacuum glass tubular construction like this; both having reduced weight also increases the transmissivity of sunshine; be evacuated simultaneously and also reduced convection losses. this advantage that has kept traditional coaxial sleeve structure of while; adopt two standard size steel pipes; the raw material ratio is easier to buy; easy to process; cost is also lower. and the present invention has adopted modularization idea in design; main steam range and condensed water house steward also integrated be designed to a thermal-collecting tube module; made things convenient for on-the-spot installation; also make simultaneously and the optically focused band is dropped on the thermal-collecting tube field erected the time; significantly reduced installing engineering amount and installation cost cost, for the scale of elevated temperature heat utilization in the solar energy provides possibility.
Description of drawings
Fig. 1 is that the master of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe structure of the present invention looks schematic diagram;
Fig. 2 is the vertical view of single-glass pipe coaxial sleeve tube groove type solar thermal-collecting tube construction module of the present invention;
Fig. 3 is the left view of single-glass pipe coaxial sleeve tube groove type solar thermal-collecting tube construction module of the present invention;
Fig. 4 is the view of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe metallic supports of the present invention.
Among the figure: pipe 12, metallic supports 13, the second heat insulation support member 14, shutoff 15, the 4th flange 16, condensed water house steward 17, condensing water inlet pipe 18 in first flange 1, main steam range 2, steam outlet pipe 3, second flange 4, the 3rd flange 5, annular plug 6, sleeve pipe outer tube 7, vacuum pumping opening 8, alloy seal cover 9, the first heat insulation support member 10, U type glass tube 11, the sleeve pipe.
The specific embodiment
As Fig. 1,2,3, shown in 4, coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe comprises first flange 1, main steam range 2, steam outlet pipe 3, second flange 4, the 3rd flange 5, annular shutoff 6, sleeve pipe outer tube 7, vacuum pumping opening 8, alloy seal cover 9, the first heat insulation support member 10, U type glass tube 11, pipe 12 in the sleeve pipe, metallic supports 13, the second heat insulation support member 14, shutoff 15, the 4th flange 16 is connected, condensed water house steward 17, condensing water inlet pipe 18, an end of pipe 12 is connected with condensed water house steward 17 by condensing water inlet pipe 18 in the sleeve pipe, an end of condensed water house steward 17 is connected with the 3rd flange 5, the other end is connected with the 4th flange 16, sleeve pipe outer tube 7 is enclosed within pipe 12 outsides in the sleeve pipe, the other end of pipe 12 communicates with sleeve pipe outer tube 7 in the sleeve pipe, one end of sleeve pipe outer tube 7 is connected 6 by pipe 12 in annular shutoff 6 and the sleeve pipe, the other end is sealed with shutoff 15, sleeve pipe outer tube 7 is connected with an end of steam outlet pipe 3 with the link of the interior pipe 12 of sleeve pipe, the other end of steam outlet pipe 3 is connected with main steam range 2, one end of main steam range 2 is connected with first flange 1, the other end is connected with second flange 4, U type glass tube 11 is enclosed within sleeve pipe outer tube 7 outsides, and be tightly connected by alloy seal cover 9 and sleeve pipe outer tube 7, the two ends of U type glass tube 11 are fixed on the sleeve pipe outer tube 7 by the first heat insulation support member 10 and the second heat insulation support member 14, and alloy seal cover 9 is provided with vacuum pumping opening 8 and is used to vacuumize.
The interior pipe 12 of described sleeve pipe is coaxial arrangement with sleeve pipe outer tube 7, is provided with metallic supports 13 between the pipe 12 in sleeve pipe outer tube 7 ends and the sleeve pipe, the position coaxial arrangement of sleeve pipe outer tube 7 and U type glass tube 9.
The present invention has been to use this structure of coaxial sleeve to improve the Flow Field Distribution of solar energy heating tube fluid, improve the collecting efficiency of solar energy heat collection pipe and the cost that reduces solar thermal collection system, simultaneously with the part steam pipe, condensate pipe and thermal-collecting tube have been designed to an integral body, promptly made things convenient for installation, also having improved the precision of installing. individual layer U type glass tube has been adopted in the thermal-collecting tube outside, weld together and seal with alloy and glass tube at nozzle position and vacuumize, alleviated weight with traditional sleeve pipe U type thermal-collecting tube ratio, increased the vacuum between glass tube and thermal-collecting tube, reduced the glass number of plies, improved photo-thermal conversion efficiency. between thermal-collecting tube and glass tube, separate simultaneously with heat insulation supports support, once the reliability that had added thermal-collecting tube. the interior pipe of coaxial sleeve is generally as the pipe that enters of cryogen, the sleeve pipe outer tube is generally as the effuser of high temperature fluid, in addition, the outer wall of sleeve pipe outer tube scribbles solar energy absorbing coating and is used to absorb sunshine generation heat and transfer heat to manage interior working medium. and the flow direction of whole single-glass pipe coaxial sleeve tube groove type solar thermal-collecting tube working medium in the pipe in work is as follows: cryogenic fluid process flange is by an end of system's pipe in condensate pipe and condensing water inlet inflow sleeve pipe of outside connection, the whole interior pipe of flowing through is again flowed out by an other end, shutoff break-in through the outer tube tube ends, walk around inner tubal wall and enter the sleeve pipe outer tube, the radiant energy that outer tube wall absorbs solar energy changes heat into, heat through tube wall is transmitted to the interior working medium of sleeve pipe outer tube, the heating intraductal working medium becomes steam, by steam outlet pipe, main steam range and flange flow out at last.
Whole thermal-collecting tube mainly comprises thermal-arrest and two modules of conducting heat, and heat collecting module mainly is made up of individual layer U type glass tube, alloy seal cover, heat insulation support member.Heat transfer module is mainly by pipe, steam outlet pipe in sleeve pipe outer tube, the sleeve pipe, main steam range, and the condensing water inlet pipe, the condensed water house steward, flange is formed.The degree of depth that pipe is deep into sleeve pipe outer tube inside in the sleeve pipe must have certain size, with leave enough spaces can make the working medium fluid can be smoothly by and do not influence mobile.
The use of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe of the present invention mainly is to be used in combination a section of the evaporator section that constitutes heat pipe with the loop type gravity assisted heat pipe, the height of main steam range will be higher than sleeve pipe all the time when using, in order to avoid produce air-resistance phenomenon.
The main diabatic process of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe of the present invention inside is as follows: solar energy sees through individual layer U type glass tube, sub-fraction is fallen by glass refraction and absorption loss water, major part shines on the coating of sleeve pipe outer tube outer wall and is converted into heat, this part heat part is lost in the environment through radiation heat transfer, another part is delivered on the inwall of sleeve pipe outer tube through the heat of sleeve pipe outer tube, be delivered in the working medium fluid through heat convection and radiation heat transfer again, the heat part that the working medium fluid obtains is delivered in the steam through phase-change heat-exchange, steam flows through steam outlet pipe and main steam range under the promotion of pressure, heat is taken away, a part is delivered on the outer wall of inner tube through heat convection and radiation heat transfer with the sleeve pipe outer wall of inner tube in addition, be delivered on the sleeve pipe inner tube wall through overheated conduction again, be delivered in the working medium fluid of interior pipe through heat convection and radiation heat transfer again.

Claims (3)

1. a coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe is characterized in that comprising pipe (12), metallic supports (13), the second heat insulation support member (14), shutoff (15), the 4th flange (16), condensed water house steward (17), condensing water inlet pipe (18) in first flange (1), main steam range (2), steam outlet pipe (3), second flange (4), the 3rd flange (5), annular shutoff (6), sleeve pipe outer tube (7), exhaust outlet (8), alloy seal cover (9), the first heat insulation support member (10), U type glass tube (11), the sleeve pipe; An end of pipe (12) is connected with condensed water house steward (17) by condensing water inlet pipe (18) in the sleeve pipe, condensed water house steward's (17) a end is connected with the 3rd flange (5), condensed water house steward's (17) the other end is connected with the 4th flange (16), sleeve pipe outer tube (7) is enclosed within pipe (12) outside in the sleeve pipe, the other end of pipe (12) communicates with sleeve pipe outer tube (7) in the sleeve pipe, one end of sleeve pipe outer tube (7) is by be connected (6) of annular shutoff (6) with the interior pipe of sleeve pipe (12), the other end of sleeve pipe outer tube (7) is sealed with shutoff (15), sleeve pipe outer tube (7) is connected with an end of steam outlet pipe (3) with the link of the interior pipe of sleeve pipe (12), the other end of steam outlet pipe (3) is connected with main steam range (2), one end of main steam range (2) is connected with first flange (1), the other end of main steam range (2) is connected with second flange (4), U type glass tube (11) is enclosed within sleeve pipe outer tube (7) outside, and be tightly connected by alloy seal cover (9) and sleeve pipe outer tube (7), the two ends of U type glass tube (11) are fixed on the sleeve pipe outer tube (7) by the first heat insulation support member (10) and the second heat insulation support member (14), and alloy seal cover (9) is provided with vacuum pumping opening (8).
2. a kind of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe according to claim 1, it is characterized in that pipe (12) is a coaxial arrangement with sleeve pipe outer tube (7) in the described sleeve pipe, be provided with metallic supports (13) between the pipe (12) in sleeve pipe outer tube (7) end and the sleeve pipe, the position coaxial arrangement of sleeve pipe outer tube (7) and U type glass tube (9) is provided with the first heat insulation support member (10) and the second heat insulation support member (14) between sleeve pipe outer tube (7) and the U type glass tube (9).
3. a kind of coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe according to claim 1 is characterized in that described alloy seal cover (9) and U type glass tube (11) adopt the welding process sealing, are evacuated by vacuum pumping opening (8).
CN200910154612A 2009-11-19 2009-11-19 Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe Pending CN101706094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910154612A CN101706094A (en) 2009-11-19 2009-11-19 Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910154612A CN101706094A (en) 2009-11-19 2009-11-19 Coaxial sleeve pipe type and groove type solar heat collection pipe module of single-layer glass pipe

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116534A (en) * 2011-01-10 2011-07-06 浙江大学 Condensed light tracking accuracy optimization and amendment system device of single-axis condensed-light type solar energy heat collection field system
CN102374670A (en) * 2011-10-19 2012-03-14 浙江大学 Heat-transferring improved U-shaped solar heat-collecting pipe
CN102878709A (en) * 2012-09-06 2013-01-16 北京工业大学 Support for straight-through type medium/high-temperature heat-collecting tube with inner and outer tube structures
CN105241081A (en) * 2015-11-03 2016-01-13 广东五星太阳能股份有限公司 Compound parabolic condensation type heat collection and dissipation device with heat collection function at daytime and radiation refrigeration function at night
CN105928218A (en) * 2015-01-06 2016-09-07 苏州多固工程设计有限公司 Method for manufacturing flat-plate straight-through type solar collector with tempered glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116534A (en) * 2011-01-10 2011-07-06 浙江大学 Condensed light tracking accuracy optimization and amendment system device of single-axis condensed-light type solar energy heat collection field system
CN102374670A (en) * 2011-10-19 2012-03-14 浙江大学 Heat-transferring improved U-shaped solar heat-collecting pipe
CN102878709A (en) * 2012-09-06 2013-01-16 北京工业大学 Support for straight-through type medium/high-temperature heat-collecting tube with inner and outer tube structures
CN105928218A (en) * 2015-01-06 2016-09-07 苏州多固工程设计有限公司 Method for manufacturing flat-plate straight-through type solar collector with tempered glass
CN105241081A (en) * 2015-11-03 2016-01-13 广东五星太阳能股份有限公司 Compound parabolic condensation type heat collection and dissipation device with heat collection function at daytime and radiation refrigeration function at night

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Open date: 20100512