CN103225921B - 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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- CN103225921B CN103225921B CN201310141734.7A CN201310141734A CN103225921B CN 103225921 B CN103225921 B CN 103225921B CN 201310141734 A CN201310141734 A CN 201310141734A CN 103225921 B CN103225921 B CN 103225921B
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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 embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device.
Background technology
Vacuum heat collection pipe arranges vacuum heat-insulating layer between its cover glass tube and inner glass tube, can manufacture and also can provide domestic hot-water's vacuum solar water heater winter.With the solar water heater of heat-pipe vacuum heat collecting pipe manufacture have more in pipe anhydrous Energy Efficiency Ratio high, meet safe drinking water standard, single tube and damage the advantage such as in the same old way work.Therefore.In pipe, anhydrous solar energy evacuated water-both with hot pipe will likely capture the increasing market share.
Adopt 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 the advantages such as working medium.
But during air drying, heat collecting element inside heat pipe temperature can reach 230 ℃, saturated vapor pressure corresponding to this temperature is 28.53 atmospheric pressure, and corresponding working medium filling weight is that working medium volumetric ratio is 1.1% with the ratio of heat pipe volume, and every 1 liter capacity has 11 ml waters.
The pressure of inside heat pipe in the time of can reducing air drying by reducing working medium filling weight, take device of working medium as 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 approximately 3.7 atmospheric pressure of 140 ℃ from approximately 10 atmospheric pressure of 180 ℃, and inside heat pipe while continuing to be warming up to 180 ℃ from 140 ℃ approximately 3.7 atmospheric high-vapor-pressures internal pressure only have 4 atmospheric pressure left and right.But internal pressure when working medium filling weight can not be only with air drying sometimes decides.For 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 internal pressure is no more than 4 atmospheric pressure when making 230 ℃ of air dryings, working medium filling weight is approximately 1.8 milliliters.Even if problem is described heat pipe is light-pipe structure, when tilting approximately 45 degree work, the condensed water of cold junction, the circulating water in hot junction add that 0.353 milliliter of sum of the water yield of 85 ℃ of water vapours can be far away from 1.8 milliliters.
In order to meet the normal work of heat pipe, make working medium filling weight/heat pipe plot ratio be greater than 0.2% even 0.3%, and guarantee glass heat pipe not because air drying and bombing must be taked empty sun protection measure.
The anti-air drying all-glass vacuum of Chinese invention patent 2009101951003 heat collector tube element; disclosed a kind of empty sun protection all-glass vacuum heat collector tube element; by controlled heat transfer path being set between vacuum heat collection element absorber and cover glass-tube, form; controlled heat transfer path is comprised of movable heat transfer piece and actuator, it is characterized in that containing the heating power transducing actuator being connected with vacuum heat collection element absorber low thermal resistance.Because this patent is not specially for gravity assisted heat pipe heat collecting element, thereby specific aim is not strong; The uniformity of the original product of bimetal leaf heating power transducing actuator that it adopts is just bad, after temperature distortion repeatedly, restorable ability can reduce again, operating point setting, control variables input, comparison, transducing and the Power supply that its control system of bearing is relevant and carry out function and far can not normally effectively work because precision is affected 20 year possible projected life of heat collecting element.
Fig. 4 provides the light-pipe structure gravity assisted heat pipe structural representation of a tiltably-mounted.
In Fig. 4, heat pipe 1 is made by shell and internal working medium.Its operation principle is: heat energy is i.e. arrow marked position input inwards 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 heat pipe cold junction and be arrow side by side outwards marked position emit heat energy and be supplied to and load and be condensed into the cold junction of liquid below being back under Action of Gravity Field, in the vaporization of being again heated of hot junction working medium ..., constantly circulation realizes 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, its cold junction output is the highest can reach 97 watts even higher.
If attempt the heat pipe 1 of Fig. 4 only to input heat energy from below, and do not take heat energy away, heat pipe 1 steam inside is pressed and can sharply be risen.If heat pipe 1 adopts water as working medium and abundant,, when heat pipe 1 temperature reaches 230 ℃, inner maximum pressure can reach 28.53 atmospheric pressure.
If attempted the comprehensively heating take out heat energy from a section of whole heat pipe 1 length 3% of accounting for for example starting from bottom a little more than heat pipe 1 bottom local below from top to bottom of the heat pipe 1 of Fig. 4, only make position that bottom accounts for heat pipe 1 total length 3% forward simultaneously as overlapping cold junction, the vapour pressure of heat pipe 1 inside can drop to the saturated vapor pressure corresponding with the temperature of cold junction below.When for example water is as working medium, keep heat pipe 1 100 ℃ of the temperature of overlapping cold junction below, even if other parts are heated to 230 ℃ above, because the liquid refrigerant of heat pipe 1 inside is all collected in described overlapping cold junction, heat pipe 1 hot junction above except described overlapping cold junction is whole dry owing to having working medium to supplement, and 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 be thermotube wall with absorbing film, absorb sunshine and input as heat energy, with Thermal Conduction Equipment low thermal resistance, connect described thermotube wall simultaneously and heat energy shifted.
This make that heat pipe 1 is in tilted layout, heat energy is inputted above heat pipe 1 and only with below a bit of design as overlapping cold junction in other occasions, perhaps there is no what meaning, but the empty sun protection for solar collection element, because only need minimum a part of heat radiation power---when this part heat radiation power is used for guaranteeing that air drying occurs, the peak of the initial stage inside heat pipe vapour pressure that empty sun protection device starts to work is no more than setting value; This part heat radiation power is also greater than described overlapping cold junction as the heat energy input power in hot junction---thus have advantages of radiating element volume compact, dependable performance, heat radiation power little, on the venting of vacuum heat-insulating layer less, on absorber to block impact little and can utilize heat collecting element tail end as heat dissipation interface.
Can see, the needed heat radiation power of less, the described empty sun protection device of area of overlapping cold junction is also less, more favourable.Actual heat collecting element needs the device of tail box and so on to settle.Tail box can hide the tail end of heat collecting element.The part being hidden by tail box does not belong to overlapping cold junction.Why also can use overlapping cold junction; be because some heat collecting element empty sun protection device be relatively applicable to being installed on vacuum heat-insulating layer drum-shaped section or; heat collection element cover glass pipe is with necking segment and be to adopt after necking segment forms, to assemble inner glass tube, and then draws tail pipe to be called for short the technique of post-tensioning tail pipe to cover glass tube circle envelope.If the round end-blocking that post-tensioning tail pipe technique forms is not suitable for heat radiation, with regard to needing to utilize, from described round end-blocking cover glass tube drum-shaped section up, dispel the heat.Heat pipe or the inner glass tube end section corresponding with described drum-shaped section belong to overlapping cold junction.
Overlapping cold junction is the decompression empty sun protection design based on the circulation of blocking-up heat pipe two phase flow heat transfer, and this is to design the essential distinction of controllable heat dissipation passage with the non-decompression empty sun protection of the anti-air drying all-glass vacuum of above-mentioned Chinese invention patent 2009101951003 heat collector tube element.
China's 912050845 utility model electric cooker automatic magnetic temperature detect switch (TDS)s, have introduced a kind of pyromagnetic force inverting element operation principle of utilizing.
Summary of the invention
The object of the invention is to provide embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device.
The present invention solves the technical scheme that its technical problem is taked: use with the boosting thermodynamic-driven device with heat collecting element heat pipe or inner glass tube heat transfer linkage interface and, be in transmission connection or the heat straight-tube integrally manufactured with boosting thermodynamic-driven device with boosting thermodynamic-driven device, forms the embedded boosting straight tube vacuum heat-pipe heat collecting element empty sun protection device that reduces pressure.Be arranged in the vacuum heat-insulating layer of vacuum heat-pipe heat collecting element tail end.Described empty sun protection device has two kinds of stable states: heat straight-tube is stretched out the unlatching heat conduction state conducting heat while connecting cover glass tube tail end; The adiabatci condition of closing that heat straight-tube is retracted and do not conducted heat while connecting cover glass tube tail end.The state of described empty sun protection device changes according to the change of boosting thermodynamic-driven device state.Heat straight-tube adopts one-dimensional movement auxiliary structure low thermal resistance to be connected with inner glass tube tail end place or place, bottom, heat pipe hot junction, or heat straight-tube adopts one-dimensional movement auxiliary structure low thermal resistance to be connected with a heat sink, described heat sink is connected with inner glass tube tail end or place, bottom, heat pipe hot junction low thermal resistance.Heat straight-tube can move forward and backward along heat collecting element direction of axis line.The outer end shape of heat straight-tube and cover glass tube tail end inner surface 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.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 transmission steel wire and heat straight-tube along 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, produce deformation and help to promote the driving of temperature-sensitive permanent-magnet steel soft iron to adhesive from loss of excitation state to having the temperature-fall period of magnetic state transformation at temperature-sensitive permanent-magnet steel.
Can also adopt a heat radiation paster, described heat radiation paster is with the low thermal resistance linkage interface with cover glass tube circle end-blocking inner surface; The heat transfer state of heat radiation paster and heat straight-tube changes according to the state of thermodynamic-driven device.
Can also make between heat radiation paster and heat sink adopts the high thermal resistance of jump ring to be connected; Or by a high thermal resistance of jump ring, be connected inside cover glass tube tail end with between heat pipe hot junction or inner glass tube tail end.
Beneficial effect of the present invention: the embedded boosting straight tube of the present invention vacuum heat-pipe heat collecting element decompression empty sun protection device adopt the heat radiation of place, heat pipe bottom collect liquid refrigerant in place, bottom, heat pipe hot junction, the empty sun protection design of blocking-up inside heat pipe two phase flow heat transfer, heat radiation power can reduce greatly.For example: a heat collecting element of exporting 70 watts, 3 milliliters of working medium filling weights.Employing dispels the heat to prevent the technical scheme of heat pipe bombing at the uniform controlled heat transfer path of heat pipe hot end surface, the heat radiation power of controlled heat transfer path is 40 watts, 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 of inner glass tubes of wall thickness.The present invention is for the heat collecting element of 70 watts of same outputs, and decompression empty sun protection device only needs 10 watts of heat radiation powers, just can when air drying occurs, with the speed of 0.25 ml/min, carry out the water of heat absorbing glass inside heat pipe.Air drying started after approximately 6 minutes, although the heat pipe surperficial temperature that faces south raises approximately 30 ℃ at that time, heat pipe hot junction inner except place, bottom all dry, vapour pressure be less than 1.5 atmospheric pressure.The heat radiation power of saving 30 watts makes cost have larger reduction, reduces heat transfer path venting 75% and the reliability of vacuum heat-insulating layer are increased substantially.Key is the bombing problem that can effectively solve major diameter heat pipe.The present invention adopts a small-power empty sun protection device just can guarantee that inside heat pipe water vapor pressure is no more than 2 atmospheric pressure all the time, and does not affect the normal work of heat collecting element completely.
Heat straight-tube heat transfer area is large, rigidity is strong, utilize heat collecting element bottom build heat transfer path few to the absorption resource occupation of heat collecting element, and be applicable to heat collecting element heat pipe hot junction from the empty sun protection of the distant metal heat pipe of cover glass tube straight section, interior glass finned plate pipe and eccentric heat pipe.
The splendid water of copper heat pipe available heat physical property is made working medium, but when air drying, heat pipe can lose efficacy because copper can creep occur, and this problem never has way and solves.The present invention is also for now widely used copper heat collector tube element provides an effective air drying counter-measure.
Temperature-sensitive permanent-magnet steel driving element high conformity, reproducible, control accuracy is high, long service life, performance are satisfactory.
Adopt bimetal leaf boosting parts, make temperature-sensitive permanent-magnet steel soft iron drive the advantage of, high conformity large to suction and bimetal leaf thrust distance to be given full play to, increased the product design free degree.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of facing that embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device is set in vacuum heat-insulating layer.
Fig. 2 is the upper TV structure schematic diagram that embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device is set in vacuum heat-insulating layer.
Fig. 3 is that Fig. 1 looks sectional structure schematic diagram on the left side at heat straight-tube 7 places.
Fig. 4 is the light-pipe structure gravity assisted heat pipe structural representation of a tiltably-mounted.
Fig. 5 is the expanded view of a slice heat straight-tube.
Fig. 6 is an all-glass vacuum solar energy collection tube structural representation.
1. heat pipes in figure; 2. cover glass tube; 3. inner glass tube; 4. paster dispels the heat; 5. heat sink; 6. temperature-sensitive permanent-magnet steel driving element; 7. heat straight-tube; 8. temperature-sensitive permanent-magnet steel; 9. soft iron; 10. bimetal leaf boosting parts; 11. thermal conductances; 12. shadow shields; 13. plate washers; 14. transmission steel wires; 15. springs; 16. connecting plates; 17. four paws jump rings; 18. square holes; 19. breach.
The specific embodiment
Fig. 1, Fig. 2 and Fig. 3 provide one embodiment of the invention.
In Fig. 1 to 3, at all-glass vacuum solar energy collection tube cover glass tube 2 tail ends and inner glass tube 3, be in the vacuum heat-insulating layer between heat pipe 1 tail end, an embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device is set.For empty sun protection device, heat radiation paster 4, heat sink 5, temperature-sensitive permanent-magnet steel driving element 6 and heat straight-tube 7 form.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 use jump rings overlay in cover glass tube 2 inwalls.0.22 millimeter of heat sink 5 thickness, 40 millimeters of width.Temperature-sensitive permanent-magnet steel driving element 6 comprises a temperature-sensitive permanent-magnet steel 8, 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; Temperature-sensitive permanent-magnet steel 8 contains shadow shield 12 above, prevents that sunshine direct projection from making its misoperation at the temperature-sensitive permanent-magnet steel 8 in vacuum heat-insulating layer.Soft iron 9 is subject to plate washer 13 constraints in both sides to move forward and backward and to be in transmission connection by transmission steel wire 14 and heat straight-tube 7 along heat collecting element direction of axis line, and soft iron 9 is subject to spring 15 thrust to pushed away from permanent-magnet steel 8 or has the trend that pushed away from 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 13.0.22 millimeter of heat straight-tube 7 thickness, 40 millimeters of width.Between heat straight-tube 7 and heat sink 5, adopt one-dimensional movement auxiliary structure low thermal resistance to be connected, heat straight-tube 7 can be stretched out to retract along heat collecting element direction of axis line and be moved forward and backward.Heat sink 5 parcel low thermal resistances connect heat pipe 1 place, bottom, hot junction and overlay on inner glass tube 3 with jump ring.The outer end shape of heat straight-tube 7 matches with 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 is connected by the high thermal resistance of a slice connecting plate 16 rigidity with heat sink 5.Inside cover glass tube 2 tail ends with between inner glass tube 3 tail ends, by the high thermal resistance of four paws jump ring 17, be connected the location (four paws jump ring, for for purpose of brevity, does not draw, but illustrates with Fig. 6 specially in Fig. 1,2) of realizing between cover glass tube 2 and inner glass tube 3.
The making material of heat radiation paster 4, heat sink 5, heat straight-tube 7 comprises steel plate, aluminium sheet and copper coin.
The operation principle of Fig. 1 to 3 embodiment: the heat collecting element that described decompression empty sun protection device is installed when embedding is normally in tilted layout and during not in air drying state; sunshine is converted to heat energy on inner glass tube absorbing film, and 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 cold junction heat release and condenses into liquid under differential pressure action returns to hot junction the vaporization of being heated once again under Action of Gravity Field ... so go round and begin again and realize two phase flow heat transfer circulation.
Now, 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 loss of excitation temperature, temperature-sensitive permanent-magnet steel 8 hold soft iron 9 by heat straight-tube 7 toward Zola, make heat straight-tube not contact heat radiation paster, empty sun protection device is in closing adiabatci condition.The normal thermal-arrest of heat collecting element.Marginal position when peviform dotted line represents heat straight-tube 7 retraction in Fig. 1.
When heat collecting element is during in air drying state, temperature-sensitive permanent-magnet steel 8 temperature rising magnetic force disappear, and spring 14 is pushed soft iron 9 and heat straight-tube 7 to the right side, heat straight-tube 7 are stretched out conduct heat to connect heat radiation paster 4, and empty sun protection device is in opening heat conduction state.Inner glass tube 3 is that the heat energy in heat pipe 1 hot junction is lost to environment continually by empty sun protection device.The steam of heat pipe 1 inside flows to bottom place and condenses and be collected in place, bottom under differential pressure action, clamps down on heat pipe 1 internal pressure all the time in low level, guarantees that heat collecting element can bombing do not realize the empty sun protection of heat collecting element.Due to 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 after can guaranteeing like this, temperature-sensitive permanent-magnet steel 8 magnetic force recover once again.
Heat collecting element is when air drying state, and high its shape of the temperature of bimetal leaf boosting parts 10 is not curved left, guarantees that soft iron 9 tensions move to right.
Heat collecting element departs from air drying state later, and temperature-sensitive permanent-magnet steel 8 temperature reduce magnetic force to be recovered and attract soft iron 9 that heat straight-tube 7 retractions are not conducted heat to connect heat radiation paster 4, and empty sun protection device is in closing adiabatci condition, and heat collecting element can normally be worked again.
Bimetal leaf boosting parts 10, produce the deformation intermediate portion soft iron 9 of projection promotion left and are moved to the left (as shown in phantom in Figure 2) from loss of excitation state to having the temperature-fall period of magnetic state transformation at temperature-sensitive permanent-magnet steel 8.Existence due to bimetal leaf boosting parts 10; overcome the associated components such as the heat transfer path of the linear expansion coefficient metal manufacture more much bigger than inner glass tube 3 and temperature-sensitive permanent-magnet steel driving element 6 because Various Seasonal expand with heat and contract with cold make soft iron 9 from temperature-sensitive permanent-magnet steel 8 excessively away from; the problem of the inadequate empty sun protection device 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 heat pipe, but is connected with a plug-in type heat pipe or low thermal resistance is connected.The operation principle of its empty sun protection is similar, is also that by temperature-sensitive permanent-magnet steel 8, the temperature when air drying time/non-air drying raises/reduces, magnetic force disappears/recover and change the state of decompression empty sun protection device, reaches the object that makes heat collecting element obtain empty sun protection.
Fig. 5 provides the expanded view of heat straight-tube 7.
In Fig. 5, heat straight-tube 7 is unfolded.Its square hole 18 is established for avoiding four paws jump ring.Breach 19 is established for being processed into the shape matching with cover glass tube tail end medial surface.
Fig. 6 provides the structural representation of an all-glass vacuum thermal-collecting tube,
In Fig. 6, by cover glass tube 2 and inner glass tube 3 nested, concentric, arrange sealing-in, make an all-glass vacuum heat collector tube element.Inner glass tube 3 from sealing-in place stretch out forward and inner vacuum pumping loading 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 (2)
1. embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device, by the boosting thermodynamic-driven device with 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 heat straight-tube of boosting thermodynamic-driven device, be arranged in the vacuum heat-insulating layer of vacuum heat-pipe heat collecting element tail end; Described empty sun protection device has two kinds of stable states: heat straight-tube is stretched out the unlatching heat conduction state conducting heat while connecting cover glass tube tail end; The adiabatci condition of closing that heat straight-tube is retracted and do not conducted heat while connecting cover glass tube tail end; The state of described empty sun protection device changes according to the change of boosting thermodynamic-driven device state, it is characterized in that heat straight-tube adopts one-dimensional movement auxiliary structure low thermal resistance to be connected with inner glass tube tail end place or place, bottom, heat pipe hot junction, or heat straight-tube adopts one-dimensional movement auxiliary structure low thermal resistance to be connected with a heat sink, described heat sink is connected with inner glass tube tail end or place, bottom, heat pipe hot junction low thermal resistance; Heat straight-tube can move forward and backward along heat collecting element direction of axis line; The outer end shape of heat straight-tube and cover glass tube tail end inner surface 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; Temperature-sensitive permanent-magnet steel is connected with inner glass tube or heat pipe hot junction low thermal resistance by a thermal conductance; Above temperature-sensitive permanent-magnet steel, contain shadow shield; Soft iron is tied and can does moving forward and backward and being in transmission connection by transmission steel wire and heat straight-tube along 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, produce deformation and help to promote the driving of temperature-sensitive permanent-magnet steel soft iron to adhesive from loss of excitation state to having the temperature-fall period of magnetic state transformation at temperature-sensitive permanent-magnet steel.
2. according to embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device claimed in claim 1, it is characterized in that containing a heat radiation paster, described heat radiation paster is with the low thermal resistance linkage interface with cover glass tube circle end-blocking inner surface; The heat transfer state of heat radiation paster and heat straight-tube changes according to the state of thermodynamic-driven device.
3. according to embedded boosting straight tube vacuum heat-pipe heat collecting element decompression empty sun protection device claimed in claim 1, between it is characterized in that dispelling the heat paster and heat sink, adopt the high thermal resistance of jump ring to be connected; Or by a high thermal resistance of jump ring, be connected inside cover glass tube tail end with between heat pipe hot junction or inner glass tube tail end.
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 CN103225921A (en) | 2013-07-31 |
| CN103225921B true CN103225921B (en) | 2014-12-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59231360A (en) * | 1983-06-15 | 1984-12-26 | Matsushita Electric Ind Co Ltd | Excessive heat collection preventive type heat collector |
| CN2791556Y (en) * | 2005-04-28 | 2006-06-28 | 蒋乐书 | Solar heat collecting pipe having builtinpipe |
| CN102052774B (en) * | 2009-11-11 | 2016-08-17 | 邱醒 | Vacuum circulating heat collecting element of indent heat release interface solar collector |
| CN102052777B (en) * | 2009-11-11 | 2014-08-06 | 海宁伊满阁太阳能科技有限公司 | Solar heat-collecting device with overheating protection vacuum circulating heat-collecting elements |
| KR100999832B1 (en) * | 2010-09-06 | 2010-12-10 | 세한에너지 주식회사 | Temperature excessive climbing prevention structure of solar collector |
| GB2489401B (en) * | 2011-03-21 | 2014-04-23 | Naked Energy Ltd | Solar energy converter |
| 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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