CN103225921A - Embedded boosting straight cylinder vacuum heat collection pipe element pressure reduction stagnation protector - Google Patents
Embedded boosting straight cylinder vacuum heat collection pipe element pressure reduction stagnation protector Download PDFInfo
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- CN103225921A CN103225921A CN2013101417347A CN201310141734A CN103225921A CN 103225921 A CN103225921 A CN 103225921A CN 2013101417347 A CN2013101417347 A CN 2013101417347A CN 201310141734 A CN201310141734 A CN 201310141734A CN 103225921 A CN103225921 A CN 103225921A
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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
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- 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
- Y02E10/44—Heat exchange systems
Abstract
An embedded boosting straight cylinder vacuum heat collection pipe element pressure reduction stagnation protector is formed by a boosting thermal driver and a heat transfer straight cylinder, and is characterized in that a heat radiation patch is provided with an interface in low resistance connection with the inner surface of round sealed end of a cover glass tube; the heat transfer straight cylinder can longitudinally move in the direction of the axial line of a heat collection element; the boosting thermal driver comprises a double-metal sheet boosting part, a block of thermal sensitive permanent magnetic steel and a block of soft iron; the soft iron is in transmission connection with the heat transfer straight cylinder; and the double-metal sheet boosting part deforms to help a boosting thermal sensitive permanent magnetic steel soft iron driver pair suck during the state of the thermal sensitive permanent magnetic steel is converted from demagnetized into magnetic. The problem that the soft iron is too far from the thermal permanent magnetic steel 8 to normally work, which is caused by thermal expansion and precision errors, is solved, as a result, the thermal permanent steel driver can more quickly and reliably operate. According to the invention, only the low-power stagnation protector can ensure that pressure of steam in the hot pipes is not greater than double atmospheric pressure always, and is high in reliability.
Description
Technical field
The present invention relates to the empty protector that shines of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression.
Background technology
Vacuum heat collection pipe is provided with vacuum heat-insulating layer between its cover glass tube and inner glass tube, can make the vacuum solar water heater that also can provide the domestic hot-water winter.With the solar water heater of heat-pipe vacuum heat collecting pipe manufacturing have more anhydrous Energy Efficiency Ratio height in the pipe, meet the safe drinking water standard, single tube damages advantage such as in the same old way work.Therefore.Anhydrous solar energy evacuated heat pipe water heater might capture the increasing market share in the pipe.
Adopt the integrated glass heat pipe have can with cover glass tube melt envelope, glass heat pipe surface can directly make absorbing film heat transfer link few, can adopt the splendid water of thermophysical property to make advantages such as working medium.
But during empty the solarization, heat collecting element inside heat pipe temperature can reach 230 ℃, and the saturated vapor pressure of this temperature correspondence is 28.53 atmospheric pressure, and corresponding working medium filling weight is that the working medium volumetric ratio is 1.1% with the ratio of heat pipe volume, and promptly per 1 liter capacity has 11 ml waters.
The pressure of inside heat pipe in the time of can reducing empty the solarization by reducing the working medium filling weight, with water conservancy project matter is example: when working medium filling weight/heat pipe plot ratio 0.5% during from 5 milliliters/1000 milliliters are reduced to 2 milliliters/1000 milliliters 0.2%, correspondingly its highest saturated vapor pressure is reduced to about 3.7 atmospheric pressure of 140 ℃ from about 10 atmospheric pressure of 180 ℃, and inside heat pipe internal pressure when 140 ℃ of about 3.7 atmospheric high-vapor-pressures continue to be warming up to 180 ℃ only has about 4 atmospheric pressure.But the internal pressure when the working medium filling weight can not only shine with sky sometimes decides.For a working medium filling weight/heat pipe plot ratio be 0.2%, the heat pipe of 1000 milliliters of internal capacities, 2000 millimeters of length, if for make empty when shining 230 ℃ internal pressure be no more than 4 atmospheric pressure, then the working medium filling weight is about 1.8 milliliters.Be light-pipe structure even problem is described heat pipe, when work were spent in inclination about 45, the condensed water of cold junction, the circulating water in hot junction added that 0.353 milliliter of sum of the water yield of 85 ℃ of water vapours can be far away from 1.8 milliliters.
Make working medium filling weight/heat pipe plot ratio greater than 0.2% even 0.3% in order to satisfy the heat pipe operate as normal, and guarantee not bombing of glass heat pipe, must take the empty safeguard measure of shining because sky shines.
The Chinese invention patent 2009101951003 anti-empty all-glass vacuum heat collector tube elements that shine; disclosed a kind of empty protection all-glass vacuum heat collector tube element that shines; constitute by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set; controlled heat transfer path is made up of movable heat transfer piece and actuator, it is characterized in that containing the heating power transducing actuator that is connected with vacuum heat collection element absorber low thermal resistance.Because this patent is not specially at the gravity assisted heat pipe heat collecting element, thereby specific aim is not strong; The original consistency of product of bimetal leaf heating power transducing actuator that it adopts is just bad, restorable ability can reduce again after temperature distortion repeatedly, 20 year possible projected life of operating point settings that its control system of bearing is relevant, control variables input, comparison, transducing and energy are supplied with and the execution function far can not normally effectively be worked because precision is affected heat collecting element.
Fig. 4 provides the light-pipe structure gravity assisted heat pipe structural representation of a tiltably-mounted.
Among Fig. 4, heat pipe 1 is made by shell and internal working medium.Its operation principle is: heat energy is i.e. inwards arrow sign input side by side from the hot junction of below, make the vaporization of being heated of the working medium at heat pipe 1 inner bottom place, steam is under the effect of pressure reduction, upwards advance to the heat pipe cold junction and be arrow side by side outwards the sign place emit heat energy and be supplied to load and be condensed into the cold junction of liquid below under the gravity effect, being back to, in the vaporization of being heated once more of hot junction working medium ..., constantly circulation realizes the two phase flow heat transfer circulation thus.Heat pipe has excellent heat-transfer capability, heat flow density ability to transform and isothermal characteristics.If 100 watts of heat pipe 1 hot junction inputs, then its cold junction output is the highest can reach 97 watts even higher.
If attempt heat pipe 1 to Fig. 4 only from following input heat energy, and do not take heat energy away, then heat pipe 1 steam inside is pressed and can sharply be risen.If heat pipe 1 adopts water as working medium and abundant, then when heat pipe 1 temperature reached 230 ℃, inner maximum pressure can reach 28.53 atmospheric pressure.
If attempt to the comprehensive from top to bottom heating of the heat pipe 1 of Fig. 4 and from the following local one section taking-up heat energy that accounts for whole heat pipe 1 length 3% that for example begins from the bottom a little more than heat pipe 1 bottom, promptly only make position that the bottom accounts for heat pipe 1 total length 3% forward simultaneously as overlapping cold junction, then the vapour pressure of heat pipe 1 inside can drop to and the corresponding saturated vapor pressure of the temperature of following cold junction.When for example water is as working medium, 100 ℃ of the temperature of maintenance heat pipe 1 following overlapping cold junction, even then top other parts are heated to 230 ℃, because the liquid refrigerant of heat pipe 1 inside all is collected in described overlapping cold junction, heat pipe 1 hot junction above except that described overlapping cold junction is not owing to there is working medium to replenish whole drying up, and the two phase flow heat transfer mechanism has not existed.The steam pressure of heat pipe 1 inside 1 atmospheric pressure of also only having an appointment.
An example of overlapping cold junction is that thermotube wall has absorbing film, absorbs sunshine and imports as heat energy, connects described thermotube wall with heat transfer device low thermal resistance simultaneously and heat energy is shifted.
Thisly make that heat pipe 1 is in tilted layout, heat energy is imported and only perhaps do not had what meaning with following a bit of design as overlapping cold junction in other occasions above heat pipe 1, but the sky that is used for solar collection element shines protection, because only need minimum a part of heat radiation power---this part heat radiation power is used to guarantee empty the solarization when taking place, and the peak of the initial stage inside heat pipe vapour pressure that empty solarization protective device begins to work is no more than setting value; This part heat radiation power also is greater than the heat energy input power of described overlapping cold junction as the hot junction---thus have radiating element volume compact, dependable performance, heat radiation power little, to the venting of vacuum heat-insulating layer less, to absorber to block influence little and can utilize the advantage of heat collecting element tail end as heat dissipation interface.
Can see that the needed heat radiation power of more little, the described empty solarization protection device of the area of overlapping cold junction is also more little, favourable more.Actual heat collecting element needs the device of tail box and so on to settle.The tail box can hide the tail end of heat collecting element.The part that is hidden by the tail box does not belong to overlapping cold junction.Why also can use overlapping cold junction; be because some heat collecting elements empty shine protective device relatively be fit to be installed on vacuum heat-insulating layer drum-shaped section or; the heat collecting element cover glass tube has necking segment and is to adopt in necking segment to form back assembling inner glass tube, and then draws tail pipe to be called for short the technology of post-tensioning tail pipe to cover glass tube circle envelope.If the round end-blocking that post-tensioning tail pipe technology forms is not suitable for heat radiation, dispel the heat from described round end-blocking cover glass tube drum-shaped section up with regard to needing to utilize.Belong to overlapping cold junction with corresponding heat pipe of described drum-shaped section or inner glass tube end section.
Overlapping cold junction is based on empty solarization of decompression of blocking-up heat pipe two phase flow heat transfer circulation and protects design, and this is to shine the essential distinction of protection design controllable heat dissipation channel with the above-mentioned Chinese invention patent 2009101951003 anti-empty non-decompression skies that shine all-glass vacuum heat collector tube element.
China's 912050845 utility model electric cookers have been introduced a kind of pyromagnetic power inverting element operation principle of utilizing with automatic magnetic temperature detect switch (TDS).
Summary of the invention
The objective of the invention is to provide the decompression of the straight tube of embedded boosting vacuum heat-pipe heat collecting element the empty protector that shines.
The present invention solves the technical scheme that its technical problem is taked: with have with the boosting thermodynamic-driven device of heat collecting element heat pipe or inner glass tube heat transfer linkage interface and, be in transmission connection or the heat transfer straight tube integrally manufactured with boosting thermodynamic-driven device with boosting thermodynamic-driven device, forms the empty solarization of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression protector.Be arranged in the vacuum heat-insulating layer of vacuum heat-pipe heat collecting element tail end.The described empty protector that shines has two kinds of stable states: the straight tube that conducts heat stretches out the unlatching heat conduction state that conducts heat when connecting the cover glass tube tail end; The straight tube withdrawal of the conducting heat adiabatci condition of closing when connecting the cover glass tube tail end of not conducting heat.The state of described empty solarization protector changes according to the change of boosting thermodynamic-driven device state.The straight tube that conducts heat adopts one dimension moving sets structure low thermal resistance to be connected with place, inner glass tube bottom or place, bottom, heat pipe hot junction, the straight tube that perhaps conducts heat converges with a heat and adopts one dimension moving sets structure low thermal resistance to be connected, and described heat is converged and is connected with inner glass tube tail end or place, bottom, heat pipe hot junction low thermal resistance.The straight tube that conducts heat can move forward and backward along the heat collecting element direction of axis line.Conducting heat directly, the outer end shape and the cover glass tube tail end inner surface of tube match.Described boosting thermodynamic-driven device comprise temperature-sensitive permanent-magnet steel soft iron drive to bimetal leaf boosting parts.Temperature-sensitive permanent-magnet steel soft iron drives comprising a temperature-sensitive permanent-magnet steel and a soft iron.The temperature-sensitive permanent-magnet steel is connected with inner glass tube or heat pipe hot junction low thermal resistance by a thermal conductance.Soft iron is tied and can does moving forward and backward and being in transmission connection by the transmission steel wire and the straight tube that conducts heat along the heat collecting element direction of axis line.Described temperature-sensitive permanent-magnet steel soft iron drives containing the linkage interface with bimetal leaf boosting parts; Described bimetal leaf boosting parts the temperature-sensitive permanent-magnet steel from the loss of excitation state to the temperature-fall period that has magnetic state to change, produce deformation and help to promote temperature-sensitive permanent-magnet steel soft iron and drive adhesive.
Can also adopt a heat radiation paster, described heat radiation paster has the low thermal resistance linkage interface with cover glass tube circle end-blocking inner surface; The heat transfer state of the heat radiation paster and the straight tube that conducts heat changes according to the state of thermodynamic-driven device.
Adopt the high thermal resistance of jump ring to be connected between can also making the heat radiation paster and heat being converged; Perhaps the cover glass tube tail end inboard with heat pipe hot junction or inner glass tube tail end between be connected by a high thermal resistance of jump ring.
Beneficial effect of the present invention: the embedded boosting of the present invention directly tube vacuum heat-pipe heat collecting element decompression sky solarization protector employing is collected the inside heat pipe two phase flow heat transfer was located, blocked to liquid refrigerant in bottom, heat pipe hot junction sky solarization protection design in the heat radiation of place, heat pipe bottom, and heat radiation power can reduce greatly.For example: a heat collecting element of exporting 70 watts, 3 milliliters of working medium filling weights.Employing is dispelled the heat at the uniform controlled heat transfer path of heat pipe hot end surface and is prevented the technical scheme of heat pipe bombing, the heat radiation power of controlled heat transfer path is 40 watts, the inside heat pipe temperature is the highest to be also had more than 150 ℃, and corresponding water vapor pressure still can reach the voltage endurance capability that 4.8 atmospheric pressure exceed 58 millimeters of external diameters, 1.8 millimeters inner glass tubes of wall thickness.The present invention is for the heat collecting element of 70 watts of same outputs, and the empty protector that shines of decompression only needs 10 watts of heat radiation powers, just can come the water of heat absorbing glass inside heat pipe when the sky solarization takes place with the speed of 0.25 ml/min.Empty shine begin about 6 minutes after, though at that time heat pipe on the sunny side the temperature on surface raise about 30 ℃, the heat pipe hot junction is inner removes that the place, bottom is all dry, vapour pressure is less than 1.5 atmospheric pressure.The heat radiation power of saving 30 watts makes cost that bigger reduction is arranged, and the minimizing heat transfer path increases substantially the venting 75% and the reliability of vacuum heat-insulating layer.Key is the bombing problem that can effectively solve the major diameter heat pipe.The present invention adopts the empty protector that shines of a small-power just can guarantee that the inside heat pipe water vapor pressure is no more than 2 atmospheric pressure all the time, and does not influence the operate as normal of heat collecting element fully.
Directly the tube heat transfer area is big, rigidity strong in heat transfer, utilize the heat collecting element bottom to make up heat transfer path shines protection to few, the also suitable heat collecting element heat pipe hot junction of absorption resource occupation of heat collecting element from the sky of cover glass tube straight section distance metal heat pipe, interior glass finned plate pipe and eccentric heat pipe far away.
The splendid water of copper heat pipe available heat physical property is made working medium, but when sky shone, heat pipe can lose efficacy because copper can creep take place, and this problem never has way and solves.The present invention also provides an effectively empty counter-measure of shining for present widely used copper heat collector tube element.
Temperature-sensitive permanent-magnet steel driving element high conformity, good reproducibility, control accuracy height, long service life, performance are satisfactory.
Adopt bimetal leaf boosting parts, the advantage that makes temperature-sensitive permanent-magnet steel soft iron drive, high conformity big to suction and bimetal leaf thrust distance is given full play to, and has increased the product design free degree.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is provided with the empty structural representation of facing that shines protector of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression in the vacuum heat-insulating layer.
Fig. 2 is provided with the empty last TV structure schematic diagram that shines protector of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression in the vacuum heat-insulating layer.
Fig. 3 is that Fig. 1 looks the sectional structure schematic diagram on the left side at straight tube 7 places of conducting heat.
Fig. 4 is the light-pipe structure gravity assisted heat pipe structural representation of a tiltably-mounted.
Fig. 5 is the expanded view of the straight tube of a slice heat transfer.
Fig. 6 is an all-glass vacuum heat collector tube tubular construction schematic diagram.
1. heat pipes among the figure; 2. cover glass tube; 3. inner glass tube; 4. heat radiation paster; 5. heat is converged; 6. temperature-sensitive permanent-magnet steel driving element; 7. straight tube conducts heat; 8. temperature-sensitive permanent-magnet steel; 9. soft iron; 10. bimetal leaf boosting parts; 11. thermal conductance; 12. shadow shield; 13. plate washer; 14. transmission steel wire; 15. spring; 16. connecting plate; 17. four paws jump ring; 18. square hole; 19. breach.
The specific embodiment
Fig. 1, Fig. 2 and Fig. 3 provide one embodiment of the invention.
Among Fig. 1 to 3, in all-glass vacuum heat collector tube shroud glass tube 2 tail ends and inner glass tube 3 are vacuum heat-insulating layer between heat pipe 1 tail end, the empty protector that shines of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression is set.Sky shines protector and forms with heat radiation paster 4, heat remittance 5, temperature-sensitive permanent-magnet steel driving element 6 and the straight tube 7 that conducts heat.The shape of heat radiation paster 4 outer surfaces and the shape of cover glass tube 2 tail end inner surfaces match.0.22 millimeter of heat radiation paster 4 thickness, 40 millimeters of width.Heat radiation paster 4 usefulness jump rings overlay in cover glass tube 2 inwalls.0.22 millimeter of 5 thickness of heat remittance, 40 millimeters of width.Temperature-sensitive permanent-magnet steel driving element 6 comprises a temperature-sensitive permanent-magnet steel 8, a soft iron 9 and bimetal leaf boosting parts 10; Temperature-sensitive permanent-magnet steel 8 is connected with inner glass tube 3 low thermal resistances by thermal conductance 11; Contain shadow shield 12 above the temperature-sensitive permanent-magnet steel 8, prevent that the temperature-sensitive permanent-magnet steel 8 of sunshine direct projection in being in vacuum heat-insulating layer from making its misoperation.Soft iron 9 is subjected to both sides plate washer 13 constraint to move forward and backward and be in transmission connection for straight 7 with conducting heat by transmission steel wire 14 along the heat collecting element direction of axis line, and soft iron 9 is subjected to spring 15 thrust to be pushed away permanent-magnet steel 8 or have the trend that is pushed away permanent-magnet steel 8.Conduct and bimetal leaf boosting parts 10 free-ended linkage interfaces in the middle of soft iron 9 outsides.The stiff end of bimetal leaf boosting parts 10 is connected with plate washer 13.Straight 0.22 millimeter of 7 thickness of tube, 40 millimeters of width conduct heat.The straight tube 7 that conducts heat converges with heat and adopts one dimension moving sets structure low thermal resistance to be connected between 5, and the straight tube 7 that conducts heat can be done to stretch out withdrawal along the heat collecting element direction of axis line and move forward and backward.Heat remittance 5 parcel low thermal resistances connect place, bottoms, heat pipe 1 hot junction and overlay on inner glass tube 3 with jump ring.The outer end shape of straight tube 7 of conducting heat and matching of heat radiation paster 4 inner surfaces.0.22 millimeter of thermal conductance 11 thickness, 20 millimeters of width, be rolled into tubular.Thermal conductance 11 and heat are converged and 5 to be connected by the high thermal resistance of a slice connecting plate 16 rigidity.Cover glass tube 2 tail ends inboard with inner glass tube 3 tail ends between be connected location (the four paws jump ring does not draw, but illustrates with Fig. 6 specially for for purpose of brevity) between realization cover glass tube 2 and the inner glass tube 3 by four paws jump ring 17 high thermal resistances in Fig. 1,2.
The making material of heat radiation paster 4, heat remittance 5, the straight tube 7 that conducts heat comprises steel plate, aluminium sheet and copper coin.
The operation principle of Fig. 1 to 3 embodiment: when embedding is equipped with that the empty heat collecting element that shines protector of described decompression normally is in tilted layout and when not being in empty solarization state; sunshine is converted to heat energy on the inner glass tube absorbing film, heat energy passes to inside heat pipe working medium by inner glass tube and makes it vaporization.Because heat pipe 1 cold junction temperature is lower than 95 ℃, working substance steam flows to the cold junction heat release and condenses into that liquid returns the hot junction under the gravity effect and the vaporization of being heated once again under differential pressure action ... so go round and begin again and realize the two phase flow heat transfer circulation.
At this moment, temperature-sensitive permanent-magnet steel 8 temperature that are connected with inner glass tube 3 low thermal resistances by thermal conductance 11 do not reach the loss of excitation temperature, and temperature-sensitive permanent-magnet steel 8 holds soft iron 9 will conduct heat straight tube 7 toward Zolas, making the straight tube that conducts heat not contact the heat radiation paster, and the empty protector that shines is in and closes adiabatci condition.The normal thermal-arrest of heat collecting element.Marginal position when the peviform dotted line is represented to conduct heat straight 7 withdrawal among Fig. 1.
When heat collecting element was in empty solarization state, temperature-sensitive permanent-magnet steel 8 temperature rising magnetic force disappeared, and spring 14 is pushed the soft iron 9 and the straight tube 7 that conducts heat to the right side, the straight tube 7 that conducts heat being stretched out conduct heat to connect heat radiation paster 4, and the empty protector that shines is in the heat conduction state of opening.Inner glass tube 3 is that the heat energy in heat pipe 1 hot junction is lost to environment continually by sky solarization protector.The steam of heat pipe 1 inside flows to bottom place and condenses and be collected in the place, bottom under differential pressure action, clamp down on heat pipe 1 internal pressure and be in low level all the time, guarantees that heat collecting element can bombing not realize that the sky of heat collecting element shines protection.Because the constraint of bimetal leaf boosting parts 10, maximum 2 millimeters of the distance that soft iron 9 moves right can attract soft iron 9 to return when temperature-sensitive permanent-magnet steel 8 magnetic force recover after can guaranteeing so once again.
When heat collecting element was in empty solarization state, high its shape of the temperature of bimetal leaf boosting parts 10 was curved left, guaranteed that soft iron 9 tensions move to right.
Later on heat collecting element breaks away from empty solarization state, and temperature-sensitive permanent-magnet steel 8 temperature reduce magnetic force to be recovered and attract soft iron 9 to make to conduct heat straight tube 7 withdrawals not conduct heat to connect heat radiation paster 4, and the empty protector that shines is in and closes adiabatci condition, but heat collecting element operate as normal again.
Bimetal leaf boosting parts 10 temperature-sensitive permanent-magnet steel 8 from the loss of excitation state to the temperature-fall period that has magnetic state to change, produce the deformation intermediate portion left projection promote soft iron 9 and be moved to the left (as shown in phantom in Figure 2).Because the existence of bimetal leaf boosting parts 10; overcome associated components such as the heat transfer path of the linear expansion coefficient metal manufacturing more much bigger and temperature-sensitive permanent-magnet steel driving element 6 because Various Seasonal is expanded with heat and contract with cold and made soft iron 9 far away excessively from temperature-sensitive permanent-magnet steel 8 than inner glass tube 3; the empty inadequately problem of shining the protector cisco unity malfunction of temperature-sensitive permanent-magnet steel 8 suction makes 6 work of temperature-sensitive permanent-magnet steel driving element more rapid reliable.
Fig. 1 to 3 embodiment is equally applicable to plug-in type heat collector tube element, and at this moment, inner glass tube 3 itself is not a heat pipe, but is connected with a plug-in type heat pipe or low thermal resistance is connected.It is empty, and to shine operation principle of protection similar, also be by temperature-sensitive permanent-magnet steel 8 when sky shines/temperature risings/reductions, magnetic force disappearances/recoverys when non-NULL shines change the state of the empty solarization of decompression protector, reach the purpose that the solarization of heat collecting element acquisition sky is protected.
Fig. 5 provides the expanded view of the straight tube 7 that conducts heat.
Among Fig. 5, the straight tube 7 that conducts heat is unfolded.Its square hole 18 is established for avoiding the four paws jump ring.Breach 19 is established for being processed into the shape that matches with cover glass tube tail end medial surface.
Fig. 6 provides the structural representation of an all-glass vacuum thermal-collecting tube,
Among Fig. 6, arrange sealing-in, make an all-glass vacuum heat collector tube element with cover glass tube 2 and inner glass tube 3 nested, concentric.Inner glass tube 3 from sealing-in place stretch out forward and inside vacuumize can working medium after sealed-off make a heat pipe 1, the length in heat pipe 1 hot junction is 1.8 meters.The outer surface of inner glass tube 3 is made absorbing film.Four paws jump ring 17 is arranged between cover glass tube 2 tail ends and inner glass tube 3 tail ends.
Claims (3)
1. the empty protector that shines of the straight tube of embedded boosting vacuum heat-pipe heat collecting element decompression, by have with the boosting thermodynamic-driven device of heat collecting element heat pipe or inner glass tube heat transfer linkage interface and, be in transmission connection with boosting thermodynamic-driven device or form with the integrally manufactured straight tube of heat transfer of boosting thermodynamic-driven device, be arranged in the vacuum heat-insulating layer of vacuum heat-pipe heat collecting element tail end; The described empty protector that shines has two kinds of stable states: the straight tube that conducts heat stretches out the unlatching heat conduction state that conducts heat when connecting the cover glass tube tail end; The straight tube withdrawal of the conducting heat adiabatci condition of closing when connecting the cover glass tube tail end of not conducting heat; The state of described empty solarization protector changes according to the change of boosting thermodynamic-driven device state, the straight tube that it is characterized in that conducting heat adopts one dimension moving sets structure low thermal resistance to be connected with place, inner glass tube bottom or place, bottom, heat pipe hot junction, the straight tube that perhaps conducts heat converges with a heat and adopts one dimension moving sets structure low thermal resistance to be connected, and described heat is converged and is connected with inner glass tube tail end or place, bottom, heat pipe hot junction low thermal resistance; The straight tube that conducts heat can move forward and backward along the heat collecting element direction of axis line; Conducting heat directly, the outer end shape and the cover glass tube tail end inner surface of tube match; Described boosting thermodynamic-driven device comprise temperature-sensitive permanent-magnet steel soft iron drive to bimetal leaf boosting parts; Temperature-sensitive permanent-magnet steel soft iron drives comprising a temperature-sensitive permanent-magnet steel and a soft iron; The temperature-sensitive permanent-magnet steel is connected with inner glass tube or heat pipe hot junction low thermal resistance by a thermal conductance; Soft iron is tied and can does moving forward and backward and being in transmission connection by the transmission steel wire and the straight tube that conducts heat along the heat collecting element direction of axis line; Described temperature-sensitive permanent-magnet steel soft iron drives containing the linkage interface with bimetal leaf boosting parts; Described bimetal leaf boosting parts the temperature-sensitive permanent-magnet steel from the loss of excitation state to the temperature-fall period that has magnetic state to change, produce deformation and help to promote temperature-sensitive permanent-magnet steel soft iron and drive adhesive.
2. according to the empty protector that shines of the described embedded straight tube vacuum heat-pipe heat collecting element of claim 1 decompression, it is characterized in that containing a heat radiation paster, described heat radiation paster has the low thermal resistance linkage interface with cover glass tube circle end-blocking inner surface; The heat transfer state of the heat radiation paster and the straight tube that conducts heat changes according to the state of thermodynamic-driven device.
3. according to the empty protector that shines of the described embedded straight tube vacuum heat-pipe heat collecting element of claim 1 decompression, the paster that it is characterized in that dispelling the heat is connected with the high thermal resistance of employing jump ring between heat is converged; Perhaps the cover glass tube tail end inboard with heat pipe hot junction or inner glass tube tail end between be connected by a high thermal resistance of jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141734.7A CN103225921B (en) | 2013-04-22 | 2013-04-22 | Embedded boosting straight cylinder vacuum heat collection pipe element pressure reduction stagnation protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141734.7A CN103225921B (en) | 2013-04-22 | 2013-04-22 | Embedded boosting straight cylinder vacuum heat collection pipe element pressure reduction stagnation protector |
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| CN103225921A true CN103225921A (en) | 2013-07-31 |
| CN103225921B CN103225921B (en) | 2014-12-03 |
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| CN203396116U (en) * | 2013-04-22 | 2014-01-15 | 海宁伊满阁太阳能科技有限公司 | Reduced-pressure air-drying protector for vacuum heat tube heat-collecting component with embedded boosting straight barrel |
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