CN203190688U - Embedded type boosting vacuum heat pipe heat collection element decompression air drying protector - Google Patents

Abstract

The utility model relates to an embedded type boosting vacuum heat pipe heat collection element decompression air drying protector which is composed of an air drying protection heat transmission channel. The air drying protection heat transmission channel is composed of a radiating paster, a heat absorption piece, a temperature-sensitive permanent magnet steel driver and a middle sheet. The embedded type boosting vacuum heat pipe heat collection element decompression air drying protector is characterized in that the temperature-sensitive permanent magnet steel driver comprises a temperature-sensitive permanent magnet steel soft iron driving pair and a double-metal-sheet boosting component. The embedded type boosting vacuum heat pipe heat collection element decompression air drying protector is composed of a boosting heat driver and a heat transmission straight cylinder and is characterized in that the boosting heat driver comprises the double-metal-sheet boosting component, temperature-sensitive permanent magnet steel and soft iron, and the soft iron is in transmission connection with the heat transmission straight cylinder. The double-metal-sheet boosting component helps the temperature-sensitive permanent magnet steel soft iron driving pair to conduct actuation in the process that the temperature-sensitive permanent magnet steel is converted from a non-magnetized state to a magnetized state. The problem that normal work cannot be achieved due to the fact that the soft iron is too far away from the temperature-sensitive permanent magnet steel (8) is solved. By means of the embedded type boosting vacuum heat pipe heat collection element decompression air drying protector, the air drying protector in low power can guarantee that the water vapor pressure inside the heat pipe does not excess two atm, and reliability is high.

Description

The empty protector that shines of embedded boosting vacuum heat-pipe heat collecting element decompression

Technical field

The utility model relates to the empty protector that shines of embedded boosting vacuum heat-pipe heat collecting element decompression.

Background technology

Vacuum heat collection pipe arranges 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 namely 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, be example with water conservancy project matter: 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 when continuing to be warming up to 180 ℃ from 140 ℃ of about 3.7 atmospheric high-vapor-pressures internal pressure only have 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 the not bombing because of empty solarization of glass heat pipe, must take the empty safeguard measure of shining.

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 again 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 the heating and take out heat energy from following a section of whole heat pipe 1 length 3% of accounting for that for example begins from the bottom a little more than heat pipe 1 bottom local comprehensively from top to bottom of the heat pipe 1 of Fig. 4, namely 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 the saturated vapor pressure corresponding with 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 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 for guaranteeing empty the solarization when taking place, and the empty peak that shines the initial stage inside heat pipe vapour pressure that protective device begins to work is no more than setting value; This part heat radiation power also is greater than described overlapping cold junction as the heat energy input power in 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 heat collecting element tail end as the advantage of 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, more favourable.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.Heat pipe or the inner glass tube end section corresponding with described drum-shaped section belong to overlapping cold junction.

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 purpose of this utility model is will provide to help the empty protector that shines of embedded boosting vacuum heat-pipe heat collecting element decompression.

One of the technical scheme in the invention for solving the technical problem: with the empty protection heat transfer path that shines of sheet vacuum heat-pipe heat collecting element decompression in the above boosting; form an empty protector that shines of embedded boosting vacuum heat-pipe heat collecting element decompression, be arranged in the cover glass tube circle end-blocking and the vacuum heat-insulating layer between inner glass tube tail end or the heat pipe tail end of vacuum heat-pipe heat collecting element.Described empty shine the protection heat transfer path by heat radiation paster, heat absorbing member, have the middle sheet that is in transmission connection with the temperature-sensitive permanent-magnet steel driving element of heat collecting element heat pipe or inner glass tube heat transfer linkage interface, with temperature-sensitive permanent-magnet steel driving element and form.The described empty protection heat transfer path that shines has two kinds of stable states: the unlatching heat conduction state when middle sheet conducts heat connection heat absorbing member and heat radiation paster simultaneously; In sheet close adiabatci condition when conduct heat not connecting heat absorbing member with the heat radiation paster simultaneously.The state of described empty solarization protection heat transfer path changes according to the change of temperature-sensitive permanent-magnet steel driving element state.Described heat radiation paster has with the low thermal resistance linkage interface of cover glass tube circle end-blocking inner surface and has heat transfer interface with middle sheet.Described temperature-sensitive permanent-magnet steel driving element comprise temperature-sensitive permanent-magnet steel soft iron drive to bimetal leaf boosting parts.Described temperature-sensitive permanent-magnet steel soft iron drives comprising a temperature-sensitive permanent-magnet steel and a soft iron.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 make described heat absorbing member contain with the low thermal resistance linkage interface at inner glass tube or bottom, heat pipe hot junction place and contain some outward flanging punchings.Make the shape of described heat radiation paster outer surface and cover glass tube circle end-blocking inner surface match, make described heat radiation paster that have with heat transfer interface middle sheet be some to the in-flanges punching.

Can also make between described heat absorbing member and the heat radiation paster adopts the high thermal resistance of jump ring to be connected.

Can also make described temperature-sensitive permanent-magnet steel be connected with inner glass tube or heat pipe hot junction low thermal resistance.Described soft iron is subjected to both sides plate washer constraint can do to move forward and backward along the heat collecting element direction of axis line.Soft iron is in transmission connection by transmission steel wire and middle sheet.Middle sheet has the wedge shape heat transfer interface.The other end of middle sheet is connected with spring fastenings by spring.

Two of the technical scheme in the invention for solving the technical problem: be in transmission connection or the heat transfer straight tube integrally manufactured with boosting thermodynamic-driven device with having with the boosting thermodynamic-driven device of heat collecting element heat pipe or inner glass tube heat transfer linkage interface, with boosting thermodynamic-driven device, form an empty protector that shines of embedded boosting vacuum heat-pipe heat collecting element decompression.Be arranged in the cover glass tube tail end and the vacuum heat-insulating layer between inner glass tube tail end or the bottom, heat pipe hot junction of vacuum heat-pipe heat collecting element.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.The outer end shape of straight tube of conducting heat and matching of heat radiation paster inner surface.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 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 that is connected with cover glass tube circle end-blocking inner surface low thermal resistance; The heat transfer state of heat radiation paster and the straight tube that conducts heat changes according to the state of boosting 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.

The beneficial effects of the utility model: the employing of sheet vacuum heat-pipe heat collecting element decompression sky solarization protector 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 in the embedded boosting of the utility model, 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 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, the inside heat pipe temperature also has 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 utility model 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 inner except the place, bottom all dry, vapour pressure less than 1.5 atmospheric pressure.The heat radiation power of saving 30 watts makes cost have bigger reduction, minimizing heat transfer path that venting 75% and the reliability of vacuum heat-insulating layer are increased substantially.Key is the bombing problem that can effectively solve the major diameter heat pipe.The utility model 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.

Heat absorbing member and heat radiation paster adopt the flange punching as heat transfer interface, and intensity height, dimensional uniformity are good, easy to make.Make between heat absorbing member and the heat radiation paster and adopt the high thermal resistance of jump ring to be connected in one, convenient embedded installation also can have the positioning function of the stainless steel jump ring that cooperates with cover glass tube for inner glass tube concurrently.

Conduct heat that straight tube heat transfer area is big, rigidity strong, utilize the heat collecting element bottom make up heat transfer path few to the absorption resource occupation of heat collecting element, and be fit to heat collecting element heat pipe hot junction and shine protection from the sky of metal heat pipe, interior glass finned plate pipe and the eccentric heat pipe of cover glass tube straight section distance away from.

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 utility model 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

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 arranges the empty structural representation of facing that shines protector of sheet vacuum heat-pipe heat collecting element decompression in the embedded boosting in the vacuum heat-insulating layer.

Fig. 2 is that Fig. 1 looks the sectional structure schematic diagram on the left side at heat radiation paster 4 places.

Fig. 3 arranges 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. 4 arranges 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. 5 is that Fig. 1 looks the sectional structure schematic diagram on the left side at straight tube 7 places of conducting heat.

Fig. 6 is the light-pipe structure gravity assisted heat pipe structural representation of a tiltably-mounted.

Fig. 7 is the expanded view of the straight tube of a slice heat transfer.

Fig. 8 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 absorbing member; 6. thermal conductance; 7. temperature-sensitive permanent-magnet steel driving element; 8. middle sheet; 9. to the in-flanges punching; 10. outward flanging punching; 11. wire circlip; 12. bimetal leaf boosting parts; 13. temperature-sensitive permanent-magnet steel; 14. soft iron; 15. shadow shield; 16. plate washer; 17. transmission steel wire; 18. wedge shape heat transfer interface; 19. spring; 20. spring fastenings; 21. connecting plate; 22. heat is converged; The straight tube 23. conduct heat; 24. four paws jump ring; 25. square hole; 26. breach.

The specific embodiment

Fig. 1 and Fig. 2 provide first embodiment of the utility model.

Among Fig. 1 and Fig. 2; in the cover glass tube 2 circle end-blockings of vacuum heat-pipe heat collecting element and inner glass tube 3 are vacuum heat-insulating layer between heat pipe 1 tail end; along the empty protection heat transfer path that shines of sheet vacuum heat-pipe heat collecting element decompression in circumferential uniform four boostings of ring vaccum thermal insulation layer, form the empty protector that shines of sheet vacuum heat-pipe heat collecting element decompression in the embedded boosting.Empty shine the protection heat transfer path by heat radiation paster 4, heat absorbing member 5, have the temperature-sensitive permanent-magnet steel driving element 7 of thermal conductance 6, the middle sheet 8 that is in transmission connection with temperature-sensitive permanent-magnet steel driving element 7 forms.0.22 millimeter of heat radiation paster 4 thickness, 40 millimeters of width.The kissing merging of the shape of heat radiation paster 4 outer surfaces and cover glass tube 2 circle end-blocking inner surfaces has some to the heat transfer interface of in-flanges punching 9 conducts with middle sheet 8.0.22 millimeter of heat absorbing member 5 thickness, 40 millimeters of width.The kissing at the shape of heat absorbing member 5 inner surfaces and bottom, heat pipe 1 hot junction place merge contain some outward flanging punchings 10 as with the heat transfer interface of middle sheet 8.Adopt wire circlip 11 high thermal resistances to be connected between heat absorbing member 5 and the heat radiation paster 4.The kissing of the inner surface configuration of thermal conductance 6 and heat pipe 1 hot junction outer surface merges the hot junction of parcel heat pipe 1.Temperature-sensitive permanent-magnet steel driving element 7 comprise temperature-sensitive permanent-magnet steel soft iron drive to bimetal leaf boosting parts 12.Temperature-sensitive permanent-magnet steel soft iron drives comprising a temperature-sensitive permanent-magnet steel 13 and a soft iron 14.In the middle of soft iron 14 outsides as with the linkage interface of bimetal leaf boosting parts 12.Temperature-sensitive permanent-magnet steel 13 tops arrange shadow shield 15, prevent that the temperature-sensitive permanent-magnet steel 13 of sunshine direct projection in being in vacuum heat-insulating layer from making its misoperation.Soft iron 14 is subjected to plate washer 16 constraints in both sides can do to move forward and backward along the heat collecting element direction of axis line.Soft iron 14 is in transmission connection by transmission steel wire 17 and middle sheet 8.In 2 millimeters of 0.22 millimeter of sheet 8 thickness, width be about half of vacuum heat-insulation layer thickness.Middle sheet 8 has wedge shape heat transfer interface 18.The other end of middle sheet 8 is connected with spring fastenings 20 by spring 19.Spring fastenings 20 is fixed on the heat absorbing member 5.0.22 millimeter of thermal conductance 6 thickness, 20 millimeters of width.Thermal conductance 6, heat absorbing member 5 connect as one by the narrower high thermal resistance of connecting plate 21 rigidity of a slice between the two.

The making material of heat radiation paster 4, heat absorbing member 5, thermal conductance 6, middle sheet 8, shadow shield 15, plate washer 16 comprises steel plate, aluminium sheet and copper coin.

The operation principle of Fig. 1 and Fig. 2 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 at the 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 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 13 temperature that are connected with inner glass tube 3 low thermal resistances by thermal conductance 6 do not reach the loss of excitation temperature, temperature-sensitive permanent-magnet steel 13 hold soft iron 14 with middle sheet 8 toward Zolas, the wedge shape heat transfer interface 18 in making on the sheet 8 does not contact heat radiation paster 4 and heat absorbing member 5(shown in broken line triangle among Fig. 2).Empty solarization protection heat transfer path is in closes adiabatci condition.

When heat collecting element is in empty solarization state; temperature-sensitive permanent-magnet steel 13 temperature raise and for example reach 100 ℃ critical transfer point magnetic force disappearance; spring 19 is turned right soft iron 13 and middle sheet 8 together and is drawn; make on the sheet 8 wedge shape heat transfer interface 18 simultaneously low thermal resistance connect the outward flanging punching 10(on in-flanges punching 9 and the heat absorbing member 5 on the heat radiation paster 4 shown in solid line triangle among Fig. 2), the empty protection heat transfer path that shines is in the heat conduction state of opening.Inner glass tube 3 is that the heat energy at place, bottom, heat pipe 1 hot junction is lost to environment continually by sky solarization protection heat transfer path.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.Because the constraint of plate washer 16 and bimetal leaf boosting parts 12, maximum 2 millimeters of the distance that soft iron 14 moves right can attract soft iron 14 to return when temperature-sensitive permanent-magnet steel 13 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 12 was curved left, guaranteed that soft iron 14 tensions move to right.

Heat collecting element breaks away from empty solarization state later on; temperature-sensitive permanent-magnet steel 13 temperature reduce the magnetic force recovery and attract soft iron 14 to be moved to the left; make the outward flanging punching 10 on in-flanges punching 9 and heat absorbing member 5 on the wedge shape heat transfer interface 18 on the sheet 8 and the paster 4 that dispels the heat disengage (shown in broken line triangle among Fig. 2); the empty protection heat transfer path that shines is in and closes adiabatci condition, but heat collecting element operate as normal again.Bimetal leaf boosting parts 12 temperature-sensitive permanent-magnet steel 13 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 14 and be moved to the left (shown in empty shape camber line among Fig. 2).Because the existence of bimetal leaf boosting parts 12; overcome associated components such as the heat transfer path of the linear expansion coefficient metal manufacturing more much bigger than inner glass tube and temperature-sensitive permanent-magnet steel driving element 7 because Various Seasonal expand with heat and contract with cold make soft iron 14 from temperature-sensitive permanent-magnet steel 13 excessively away from; temperature-sensitive permanent-magnet steel 13 suction are empty problem of shining the protector cisco unity malfunction inadequately, makes 7 work of temperature-sensitive permanent-magnet steel driving element more rapid reliable.

Fig. 1 and Fig. 2 embodiment are equally applicable to plug-in type heat collector tube element, and at this moment, inner glass tube 3 itself is not heat pipe, but are 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 13 when sky shines/temperature when non-NULL shines raises/reduces, magnetic force disappears/recovers and changes the empty state that shines the protection heat transfer path of decompression, reach to make heat collecting element obtain the empty purpose of protecting of shining.

Fig. 3, Fig. 4 and Fig. 5 provide second embodiment of the utility model.

Among Fig. 3 to 5, 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 22, temperature-sensitive permanent-magnet steel driving element 7 and the straight tube 23 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 22 thickness of heat remittance, 40 millimeters of width.Temperature-sensitive permanent-magnet steel driving element 7 comprises a temperature-sensitive permanent-magnet steel 13, a soft iron 14 and bimetal leaf boosting parts 12; Temperature-sensitive permanent-magnet steel 13 is connected with inner glass tube 3 low thermal resistances by thermal conductance 6; Contain shadow shield 15 above the temperature-sensitive permanent-magnet steel 13, prevent that the temperature-sensitive permanent-magnet steel 13 of sunshine direct projection in being in vacuum heat-insulating layer from making its misoperation.Soft iron 14 is subjected to both sides plate washer 16 constraint can do to move forward and backward and be in transmission connection by transmission steel wire 17 and the straight tube 23 that conducts heat along the heat collecting element direction of axis line, and soft iron 14 is subjected to spring 19 thrust to pushed away from permanent-magnet steel 13 or has the trend that pushed away from permanent-magnet steel 13.Conduct and bimetal leaf boosting parts 12 free-ended linkage interfaces in the middle of soft iron 14 outsides.The stiff end of bimetal leaf boosting parts 12 is connected with plate washer 16.Straight 0.22 millimeter of 23 thickness of tube, 40 millimeters of width conduct heat.The straight tube 23 that conducts heat converges with heat and adopts one dimension moving sets structure low thermal resistance to be connected between 22, and the straight tube 23 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 22 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 23 of conducting heat and matching of heat radiation paster 4 inner surfaces.0.22 millimeter of thermal conductance 6 thickness, 20 millimeters of width, be rolled into tubular.Thermal conductance 6 and heat are converged and 22 to be connected by the high thermal resistance of a slice connecting plate 21 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. 8 specially for for purpose of brevity) between realization cover glass tube 2 and the inner glass tube 3 by four paws jump ring 24 high thermal resistances in Fig. 1,2.

The making material of heat radiation paster 4, heat remittance 22, the straight tube 23 that conducts heat comprises steel plate, aluminium sheet and copper coin.

The operation principle of Fig. 3 to 5 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 at the 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 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 13 temperature that are connected with inner glass tube 3 low thermal resistances by thermal conductance 6 do not reach the loss of excitation temperature; temperature-sensitive permanent-magnet steel 13 holds soft iron 14 will conduct heat straight tube 23 toward Zolas, make 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 23 withdrawals among Fig. 3.

When heat collecting element was in empty solarization state, temperature-sensitive permanent-magnet steel 13 temperature rising magnetic force disappeared, and spring 19 is pushed soft iron 14 and the straight tube 23 that conducts heat to the right side, the straight tube 23 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 12, maximum 2 millimeters of the distance that soft iron 14 moves right can attract soft iron 14 to return when temperature-sensitive permanent-magnet steel 13 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 12 was curved left, guaranteed that soft iron 14 tensions move to right.

Later on heat collecting element breaks away from empty solarization state, and temperature-sensitive permanent-magnet steel 13 temperature reduce magnetic force to be recovered and attract soft iron 14 to make to conduct heat straight tube 23 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 12 temperature-sensitive permanent-magnet steel 13 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 14 and be moved to the left (shown in Fig. 2 mean camber line).Because the existence of bimetal leaf boosting parts 12; overcome associated components such as the heat transfer path of the linear expansion coefficient metal manufacturing more much bigger than inner glass tube 3 and temperature-sensitive permanent-magnet steel driving element 7 because Various Seasonal expand with heat and contract with cold make soft iron 14 from temperature-sensitive permanent-magnet steel 13 excessively away from; temperature-sensitive permanent-magnet steel 13 suction are empty problem of shining the protector cisco unity malfunction inadequately, makes 7 work of temperature-sensitive permanent-magnet steel driving element more rapid reliable.

Fig. 3 to 5 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.It is empty, and to shine operation principle of protection similar, also be by temperature-sensitive permanent-magnet steel 13 when sky shines/temperature when non-NULL shines raises/reduces, magnetic force disappears/recovers and changes the empty state that shines protector of decompression, reach to make heat collecting element obtain the empty purpose of protecting of shining.

Fig. 7 provides the expanded view of the straight tube 23 that conducts heat.

Among Fig. 7, the straight tube 23 that conducts heat is unfolded.Its square hole 25 is established for avoiding the four paws jump ring.Breach 26 is established for being processed into the shape that matches with cover glass tube 2 tail end medial surfaces.

Fig. 8 provides the structural representation of an all-glass vacuum thermal-collecting tube.

Among Fig. 8, arrange sealing-in with cover glass tube 2 and inner glass tube 3 nested, concentric, make an all-glass vacuum heat collector tube element.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 24 is arranged between cover glass tube 2 tail ends and inner glass tube 3 tail ends.

Claims (7)

1. embedded boosting vacuum heat-pipe heat collecting element decompression sky shines protector, formed by the empty protection heat transfer path that shines of sheet vacuum heat-pipe heat collecting element decompression in the above boosting, be arranged in the cover glass tube circle end-blocking and the vacuum heat-insulating layer between inner glass tube tail end or the heat pipe tail end of vacuum heat-pipe heat collecting element; Described empty shine the protection heat transfer path by heat radiation paster, heat absorbing member, have the middle sheet that is in transmission connection with the temperature-sensitive permanent-magnet steel driving element of heat collecting element heat pipe or inner glass tube heat transfer linkage interface, with temperature-sensitive permanent-magnet steel driving element and form; The described empty protection heat transfer path that shines has two kinds of stable states: the unlatching heat conduction state when middle sheet conducts heat connection heat absorbing member and heat radiation paster simultaneously; In sheet close adiabatci condition when conduct heat not connecting heat absorbing member with the heat radiation paster simultaneously; The described empty state that shines the protection heat transfer path changes according to the change of temperature-sensitive permanent-magnet steel driving element state, it is characterized in that described heat radiation paster has with the low thermal resistance linkage interface of cover glass tube circle end-blocking inner surface and has heat transfer interface with middle sheet; Described temperature-sensitive permanent-magnet steel driving element comprise temperature-sensitive permanent-magnet steel soft iron drive to bimetal leaf boosting parts; Described temperature-sensitive permanent-magnet steel soft iron drives comprising a temperature-sensitive permanent-magnet steel and a soft iron; 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 heat collector tube element decompression of claim 1, it is characterized in that described heat absorbing member contains the low thermal resistance linkage interface of locating with inner glass tube or bottom, heat pipe hot junction and contains some outward flanging punchings; The matching of the shape of described heat radiation paster outer surface and cover glass tube circle end-blocking inner surface, described heat radiation paster is that have with heat transfer interface middle sheet is some to the in-flanges punching.

3. according to the empty protector that shines of the described heat collector tube element of claim 1 decompression, it is characterized in that the high thermal resistance of employing jump ring is connected between described heat absorbing member and the heat radiation paster.

4. according to the empty protector that shines of the described heat collector tube element decompression of claim 1, it is characterized in that described temperature-sensitive permanent-magnet steel is connected with inner glass tube or heat pipe hot junction low thermal resistance; Described soft iron is subjected to both sides plate washer constraint can do to move forward and backward along the heat collecting element direction of axis line; Soft iron is in transmission connection by transmission steel wire and middle sheet; Middle sheet has the wedge shape heat transfer interface; The other end of middle sheet is connected with spring fastenings by spring.

5. embedded boosting vacuum heat-pipe heat collecting element decompression sky shines protector, be in transmission connection with the boosting thermodynamic-driven device of heat collecting element heat pipe or inner glass tube heat transfer linkage interface, with boosting thermodynamic-driven device or form with the integrally manufactured straight tube of heat transfer of boosting thermodynamic-driven device by having, be arranged in the cover glass tube tail end and the vacuum heat-insulating layer between inner glass tube tail end or the bottom, heat pipe hot junction of vacuum heat-pipe heat collecting element; 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; The outer end shape of straight tube of conducting heat and matching of heat radiation paster inner surface; 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 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.

6. according to the empty protector that shines of the described heat collector tube element decompression of claim 5, it is characterized in that containing a heat radiation paster that is connected with cover glass tube circle end-blocking inner surface low thermal resistance; The heat transfer state of heat radiation paster and the straight tube that conducts heat changes according to the state of boosting thermodynamic-driven device.

7. according to the empty protector that shines of the described heat collector tube element of claim 5 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.

Images