CN211650792U - Portable small solar heat pipe heater - Google Patents

Abstract

The utility model relates to a heater technical field, specifically speaking relates to portable small-size solar thermal energy pipe heater. The heat storage box comprises a heat collection box body and a heat storage box body arranged on the upper portion of the heat collection box body, a flat pulsating heat pipe heat absorption plate and a loop type pulsating heat pipe are arranged inside the heat collection box body and the heat storage box body, the flat pulsating heat pipe heat absorption plate is sequentially provided with a first condensation section, a first insulation section and a first evaporation section from top to bottom, the loop type pulsating heat pipe is sequentially provided with a second condensation section, a second insulation section and a second evaporation section from top to bottom, and a hot end heater comprises a separated small heat pipe cold end radiator. The utility model discloses a portable small-size solar thermal energy pipe heater adopts the integrated configuration pattern of two kinds of forms pulsation heat pipe, compound heat-retaining medium and small-size disconnect-type heat pipe to compare with traditional solar energy with hot device, has high-efficient heat absorption, heat transfer and heat-retaining performance, and the device is small and exquisite, compact structure, arranges in a flexible way, can portablely remove and use advantages such as heat at any time.

Description

Portable small solar heat pipe heater

Technical Field

The utility model relates to the technical field, specifically speaking relates to portable small-size solar thermal energy pipe heater.

Background

Solar energy is a clean and pollution-free renewable energy source, and the heat utilization of the solar energy has various forms, wherein the indoor heat utilization of the solar energy mainly has the shower or heating requirements such as a solar water heater and solar heating. The equipment constitution and the arrangement mode are relatively fixed, the heat utilization form is single, and various requirements of indoor and outdoor miniaturization and flexible heat utilization of people cannot be met.

The pulsating heat pipe is efficient heat transfer equipment with small diameter and small size, has the advantages of simple structure, low manufacturing cost, no need of a liquid absorption core and driving equipment, strong heat transfer performance and the like, and is suitable for the fields of spaceflight, heat dissipation of electronic components, medium and low temperature solar heat utilization and the like. The separated heat pipe can realize heat transmission with long distance between a cold end and a hot end, is flexible in equipment arrangement, good in heat transfer performance, strong in working stability and reliability, and has wide application prospect and advantages in the fields of industrial heat utilization, limited arrangement conditions and the like.

With the continuous improvement of living standard of people, people have higher and higher requirements on heat utilization comfort, convenience and environmental protection. Although solar heating is a method for solving the problems, a lot of researches are related to solar heating, at present, the research on products for indoor small-sized flexible solar heating and multipurpose development is less, outdoor portable small-sized solar heating equipment is not developed yet, and the products cannot meet various small-sized flexible heat using requirements of people due to low heat transfer efficiency, weather condition restriction and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable small-size solar energy heat pipe heater to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a portable small-size solar thermal tube heater, include the thermal-arrest box, install the heat-retaining box on thermal-arrest box upper portion to and with the hot junction heater, the thermal-arrest box includes thermal-arrest box shell and thermal-arrest box inner shell, the heat-retaining box includes thermal-arrest box shell and thermal-arrest box inner shell, be equipped with porous combined material phase transition heat-retaining medium in the heat-retaining box, the inside of thermal-arrest box and thermal-arrest box is provided with plate pulsating heat pipe absorber plate and loop type pulsating heat pipe, plate pulsating heat pipe absorber plate has set gradually first condensation section, first insulation section and first evaporation zone from the top down, loop type pulsating heat pipe has set gradually second condensation section, second insulation section and second evaporation zone from the top down, the thermal-arrest box is the cuboid structure, including first baseplane, First bilateral sides and first upward side, first downside, first side is opened to first side has two rectangle notches for first condensation segment and second condensation segment stretch out to the heat storage box in, the heat-retaining box is the cuboid structure, including second baseplane, second both sides face and second side, second downside, the second downside is opened there are two rectangle notches for first evaporation zone and second evaporation zone stretch out to the thermal-arrest box in, including the small-size heat pipe cold junction radiator of disconnect-type with the hot junction heater, steam inlet pipe, liquid reflux pipe and many connect in parallel the first minor diameter heat pipe between steam inlet pipe and liquid reflux pipe, steam inlet pipe communicates in heat-retaining box top through steam output pipeline, the liquid reflux pipe communicates in heat box bottom one end through the liquid reflux pipeline.

Preferably, a glass cover plate is arranged inside the heat collection tank body, and the glass cover plate is tightly attached to and sealed with four side surfaces of the shell of the heat collection tank body.

Preferably, the inside of heat-storage box is provided with the small-size heat pipe evaporimeter of disconnect-type, the small-size heat pipe evaporimeter parallel arrangement of disconnect-type is between first condensation segment and second condensation segment, the small-size heat pipe evaporimeter of disconnect-type is including setting up vapour collector and the stock solution collector at both ends about the heat-storage box, install many parallelly connected second minor diameter heat pipes between vapour collector and the stock solution collector, the internal face laminating of second minor diameter heat pipe has the wick, the bottom of wick is deepened in the stock solution collector, the wick is porous material, the upper and lower both ends of second minor diameter heat pipe are linked together with vapour collector and stock solution collector respectively, the top and the steam output pipeline of vapour collector communicate, the lateral part and the liquid return pipeline of stock solution collector communicate.

Preferably, the outer wall of the second small-diameter heat pipe is welded with a plurality of heat transfer fins which are horizontally arranged, the outer wall of the first small-diameter heat pipe is provided with heat dissipation fins, the bottom of the liquid return pipe is provided with a movable support for supporting, the bottom of the movable support is provided with a pulley, the steam output pipeline is provided with an instant-use switch, and the liquid return pipeline is provided with a one-way valve.

Preferably, a plurality of loop type channels formed by connecting parallel straight channels and alternate connection elbow channels in series are formed in the middle plane of the flat type pulsating heat pipe heat absorption plate, an outlet groove with internal threads is formed in the upper side face of the flat type pulsating heat pipe heat absorption plate, the outlet groove is located outside the flat type pulsating heat pipe heat absorption plate, the outlet groove is communicated with the loop type channels, and the outlet groove is connected with an outlet short pipe through internal threads.

Preferably, a liquid filling pipe is communicated with the top of the loop type pulsating heat pipe, and a second condensation fin which is horizontally arranged is welded on the outer wall of a second condensation section of the loop type pulsating heat pipe.

Preferably, the heat collection tank outer shell and the heat collection tank inner shell and the heat storage tank body are provided with a heat insulation layer between the heat storage tank outer shell and the heat storage tank inner shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the portable small-sized solar heat pipe heater, the mode of combining the flat pulsating heat pipe and the loop type pulsating heat pipe is adopted, the solar radiation energy can be absorbed with high efficiency to a large extent, and the problem of low heat absorption efficiency of the traditional heat absorption plate caused by thermal contact resistance between a heating surface and a heat transfer surface is effectively solved.

2. In the portable small-sized solar heat pipe heater, the small-sized separated heat pipe is used as a heat transfer element for heat storage and heat release, and the pipe diameter and the length of the heat pipe are much smaller than those of conventional heat equipment, so that the device has the performances of miniaturization, compact structure, simple manufacture, no need of heat driving equipment, efficient heat transfer and the like.

3. In the portable small-sized solar heat pipe heater, the heat storage box body, the heat absorption plate, the pulsating heat pipe and the evaporator all adopt fin structures, so that the heat transfer area between the heat transfer part and the heat storage medium can be effectively increased, and the heat storage and heat release performance between the heat storage medium heat pipes can be greatly improved.

4. In the portable small-sized solar heat pipe heater, a small-diameter separated heat pipe structure is adopted, so that the separated heat pipe cold end radiator and the separated heat pipe evaporator are effectively separated, a heat collecting system is arranged at a position with sufficient sunlight, the hot end is not limited by the positions of the heat collecting and heat storing system and is arranged at indoor and other heat utilization places.

5. In the portable small-sized solar heat pipe heater, solar energy is collected in a heat storage mode, so that the hot end is convenient to use and is not limited by the sunshine condition, and heat can be taken at any time.

6. In the portable small-sized solar heat pipe heater, the steam inlet pipeline and the liquid return pipeline of the hot end heater are made of flexible materials, the pipelines are long and soft, the radiator can freely move in a certain range, the heat consumption is convenient and flexible, and the portable small-sized solar heat pipe heater is particularly suitable for various small-capacity heat consumption requirements in home life, such as local heating, clothes drying, heating type learning tables, heating in field tents and the like.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a sectional view taken along the direction a-a in fig. 1 according to the present invention;

FIG. 3 is a schematic view of the heat collection box and the heat storage box of the present invention;

FIG. 4 is a structural diagram of a flat pulsating heat pipe absorber plate of the present invention;

fig. 5 is a sectional view taken along the direction B-B in fig. 4 according to the present invention;

FIG. 6 is a schematic view of the structure of the loop type pulsating heat pipe of the present invention;

fig. 7 is an enlarged schematic view of the structure at C in fig. 6 according to the present invention;

fig. 8 is an assembly view of the separated small heat pipe evaporator and the heat sink according to the present invention.

The various reference numbers in the figures mean:

1. a heat collection tank shell; 1a, an inner shell of the heat collection box body;

2. a heat-insulating layer;

3. a flat pulsating heat pipe absorber plate;

31. a loop-type channel; 32. an outlet tank; 33. an outlet short pipe; 34. a first evaporation section; 35. a first condensing section; 36. A first condensing fin; 37. a first insulating section;

4. a glass cover plate;

5. an inert gas;

6. a loop-type pulsating heat pipe; 61. a second evaporation section; 62. a second adiabatic section; 63. a second condensation section; 64. a second condensing fin; 65. a liquid filling port;

7. a selective absorbing coating;

8. a heat storage tank shell;

9. an inner shell of the heat storage box body;

10. a porous composite phase change heat storage medium;

11. a separate small heat pipe evaporator;

12. a second small diameter heat pipe;

13. a liquid storage header;

14. a vapor header;

15. a heat transfer fin;

16. a wick;

17. a steam output pipeline;

18. an instant-to-use switch;

19. a liquid return line;

20. a one-way valve;

21. a separated small heat pipe cold end radiator; 22. a steam inlet pipe; 23. a liquid return conduit; 24. a first small diameter heat pipe; 25. a heat dissipating fin; 26. and moving the support.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-8, the present invention provides a technical solution:

the utility model provides a portable small-sized solar heat pipe heater, which comprises a heat collecting box body, a heat storage box body arranged on the upper part of the heat collecting box body and a hot end heater, wherein the heat collecting box body comprises a heat collecting box body outer shell 1 and a heat collecting box body inner shell 1a, the heat collecting box body outer shell 1 is made of thin plates, the outer walls of the thin plates are wrapped with aluminum sheets, the effects of supporting, isolating from the external environment and reducing the radiation heat radiation to the environment are achieved, the heat storage box body comprises a heat storage box body outer shell 8 and a heat storage box body inner shell 9, the heat storage box body outer shell 8 is made of thin plates, the outer walls of the thin plates are wrapped with aluminum sheets, the effects of supporting, isolating from the external environment and reducing the radiation heat radiation to the environment are achieved, the thickness of the heat storage box body outer shell 8 is wider than that of the heat collecting, the heat storage box inner shell 9 is composed of a bottom plane and four side faces, the box body is of a cuboid structure, an outlet of a steam output pipeline 15 is reserved on the upper side face, an inlet of a liquid return pipeline 17 is reserved on the side face, and the inner shell material has certain pressure bearing performance, corrosion resistance and supporting performance.

In this embodiment, a porous composite phase-change heat storage medium 10 is disposed in the heat storage tank, a flat pulsating heat pipe heat absorbing plate 3 and a loop pulsating heat pipe 6 are disposed in the heat collection tank and the heat storage tank, the flat pulsating heat pipe heat absorbing plate 3 is sequentially provided with a first condensing section 35, a first insulating section 37 and a first evaporating section 34 from top to bottom, the loop pulsating heat pipe 6 is sequentially provided with a second condensing section 63, a second insulating section 62 and a second evaporating section 61 from top to bottom, the heat collection tank is of a rectangular structure and comprises a first bottom plane, a first two side surfaces, a first upper side surface and a first lower side surface, the first upper side surface is provided with two rectangular notches for the first condensing section 35 and the second condensing section 63 to extend out into the heat storage tank, the heat storage tank is of a rectangular structure and comprises a second bottom plane, a second side surface and a second lower side surface, the second lower side surface is provided with two rectangular notches, the first evaporation section 34 and the second evaporation section 61 extend into the heat collection box body, the hot end heater comprises a separated small heat pipe cold end radiator 21, a steam inlet pipe 22, a liquid return pipe 23 and a plurality of first small-diameter heat pipes 24 connected in parallel between the steam inlet pipe 22 and the liquid return pipe 23, the interior of the first small-diameter heat pipes is vacuumized, and certain heat pipe working media are contained in the first small-diameter heat pipes.

Further, the steam inlet pipe 22 is communicated with the top of the heat storage box body through the steam outlet pipeline 17, the steam outlet pipeline 17 is made of a pipe with certain flexibility or flexibility, the pipe cannot react with an internal liquid filling medium, and the heat storage box body has certain pressure resistance, temperature resistance and leakage resistance, the liquid return pipe 23 with good sealing performance is communicated with one end of the bottom of the heat storage box body through the liquid return pipeline 19, the liquid return pipeline 19 is made of a pipe with certain flexibility or flexibility, the pipe cannot react with the internal liquid filling medium, and the heat storage box body has certain pressure resistance, temperature resistance and leakage resistance, and is good in sealing performance.

Specifically, a glass cover plate 4 is arranged inside the heat collection box body, the glass cover plate 4 is rectangular and made of toughened glass with good light transmission performance, and the glass cover plate 4 is tightly attached to and sealed with four side faces of the heat collection box body shell 1.

In addition, inert gas 5 is filled in a crack space between the glass cover plate 4 and the flat type pulsating heat pipe heat absorption plate 3 in the heat collection box body, the inert gas 5 is some inert gases with extremely low radiation heat absorption rate, small heat capacity and poor heat transfer performance, such as nitrogen, and the like, so that the heat convection and the heat dissipation to the environment in the heat collection box body can be greatly reduced, and the oxidation to the selective absorption coating 7 is reduced.

In addition, the heat absorption plate 3 of the flat type pulsating heat pipe in the heat collection box body is coated with a selective absorption coating 7 at the sunny side, the selective absorption coating 7 is a coating which is suitable for absorbing solar energy, the absorptivity of the coating is higher than 0.9, and the emissivity of the coating is lower than 0.2, such as blue film, black chromium, anodic oxidation and other materials, and the coating is mainly used for efficiently absorbing the incident solar energy and quickly transferring heat to the working medium of the flat type pulsating heat pipe heat absorption plate 3 in the heat collection box body.

It is worth to be noted that, in order to facilitate direct and efficient absorption of solar energy projected through the glass cover 4, the elbow of the loop-type pulsating heat pipe 6 cannot be too small, the number of branch straight pipes is limited, the pipe diameter is small, and a certain distance is provided between the branch straight pipes and the flat-plate pulsating heat pipe heat absorption plate 3, so that heat radiation of sunlight on the flat-plate pulsating heat pipe heat absorption plate 3 through the loop-type pulsating heat pipe 6 is not blocked completely.

Still further, a separated type small heat pipe evaporator 11 is arranged inside the heat storage box body, the separated type small heat pipe evaporator 11 is arranged between the first condensation section 35 and the second condensation section 63 in parallel, the separated type small heat pipe evaporator 11 comprises a steam collecting pipe 14 and a liquid storing collecting pipe 13 which are arranged at the upper end and the lower end of the heat storage box body, the steam collecting pipe 13 is arranged in the heat storage box body and is connected with an upper end outlet of the parallel small-diameter heat pipe 12, the diameter of the steam collecting pipe is 8-12mm, metal pipes such as copper pipes or stainless steel can be selected, the liquid storing collecting pipe 13 is arranged in the heat storage box body and is connected with a lower end inlet of the parallel small-diameter heat pipe 12, the diameter of the liquid storing pipe is 8-12mm, and metal pipes such as.

Specifically, the separated small heat pipe cold end radiator 11 is located at the same height as or higher than the heat storage box body, so that the internal working medium in the separated heat pipe evaporator 11 and the small heat pipe cold end radiator 21 can conveniently flow back and circularly under the gravity pressure difference, and the working performance of the separated small heat pipe cold end radiator is enhanced.

It is worth to be noted that a plurality of second small-diameter heat pipes 12 connected in parallel are installed between the steam collecting pipe 14 and the liquid storage collecting pipe 13, the outer diameter of each second small-diameter heat pipe 12 is 6-10mm, the wall thickness is 0.5-1mm, the second small-diameter heat pipes can be made of copper pipes or stainless steel pipes, the separated small-sized heat pipe evaporator 11 is vacuumized after being made, and part of water, methanol and other working media are filled in the separated small-sized heat pipe evaporator.

Wherein, the inner wall surface of the second small-diameter heat pipe 12 is attached with a liquid absorption core 16, the bottom of the liquid absorption core 16 extends into the liquid storage header 13, the liquid absorption core 16 is made of a porous material, and can be a wire mesh structure made of copper or stainless steel, or a sintered liquid absorption core structure.

Further, the upper and lower ends of the second small diameter heat pipe 12 are respectively communicated with a vapor header 14 and a liquid storage header 13, the top of the vapor header 14 is communicated with a vapor output pipeline 17, and the side of the liquid storage header 13 is communicated with a liquid return pipeline 19.

In addition, the outer wall of the second small-diameter heat pipe 12 is welded with a plurality of horizontally arranged heat transfer fins 15, which are rectangular, the outer wall of the first small-diameter heat pipe 24 is provided with heat dissipation fins 25, and the heat dissipation fins 25 are arranged on the outer pipe wall of each branch pipe of the separated small-sized heat pipe cold-end radiator 21, and may be of a diaphragm type, a spiral fin type, a ring rib type, or the like.

Besides, the bottom of the liquid return pipe 23 is provided with a movable bracket 26 for supporting, the bottom of the movable bracket 26 is provided with a pulley, the steam output pipeline 17 is provided with an instant-use switch 18, and the liquid return pipeline 19 is provided with a one-way valve 20.

The instant-use switch 18 is a flow control valve for opening, closing or adjusting the flow of hot steam in the steam output pipeline 17, thereby realizing the instant-use function.

Specifically, the flat type pulsating heat pipe heat absorption plate 3 is made of a cuboid thin steel plate with the thickness of 5mm-8mm and high thermal conductivity, a loop type channel 31 which is formed by connecting a plurality of parallel straight channels with the width of 1mm-3mm and alternate connecting elbow channels in series is arranged on the middle plane of the flat type pulsating heat pipe heat absorption plate 3, 1 outlet groove 32 with internal threads of about 3-4mm is arranged on the upper side surface of the flat type pulsating heat pipe heat absorption plate 3, the outlet groove 32 is positioned outside the flat type pulsating heat pipe heat absorption plate 3, the outlet groove 32 is communicated with the loop type channel 31, the outlet groove 32 is internally threaded with an outlet short pipe 33 with the inner diameter of 2mm-3mm, the loop-shaped channel 31 in the heat absorbing plate 3 can be vacuumized through the outlet short pipe 33, pulsating heat pipe working medium with the volume of 30-70% of the volume of the channel is filled, and then the inlet of the short pipe 33 is sealed.

Because the flat-plate type channel can be made into a dense channel structure, the tube wall is thin, the metal heat-conducting property is extremely strong, solar energy absorbed by the heat absorbing plate can be completely and quickly transferred into pulsating heat pipe working media in the channel, so that the working media are enabled to absorb heat and vaporize to form vapor-liquid plug-shaped flow, and the working media are pushed to move towards the first condensation section 35, and circulating pulsation is formed in the channel.

Furthermore, the loop type pulsating heat pipe 6 is a closed loop formed by a copper tube with the outer diameter of 1-5mm and the thickness of 0.5-1mm, the top of the loop type pulsating heat pipe 6 is communicated with a liquid filling pipe 65, the loop type pulsating heat pipe 6 is vacuumized through the liquid filling pipe 65, after working media such as water, methanol and the like with the liquid filling rate of 30% -70% are filled, the loop type pulsating heat pipe 6 is bent into a loop type multi-bend structure, and the loop type pulsating heat pipe 6 and the flat type pulsating heat pipe heat absorption plate 3 are arranged in parallel and are arranged between the flat type pulsating heat pipe heat absorption plate 3 and the glass cover plate 4.

The second condensing fins 64 which are horizontally arranged are welded on the outer wall of the second condensing section 63 of the loop type pulsating heat pipe 6, and the second condensing fins 64 are rectangular and used for strengthening heat exchange with the porous composite material phase-change heat storage medium 10.

It is worth to be noted that the heat-insulating layer 2 is arranged between the heat-collecting box outer shell 1 and the heat-collecting box inner shell 1a, and the heat-storing box body comprises a heat-storing box outer shell 8 and a heat-storing box inner shell 9, and the heat-insulating layer can be made of materials such as asbestos, polyurethane foam, polystyrene and the like, so that the heat-insulating and heat-preserving effects are achieved.

The porous composite material phase-change heat storage medium 10 adopts a porous metal material or a metal wire mesh filled alkane phase-change medium with high heat conductivity and the phase-change temperature of below 120 ℃ as a composite porous heat storage medium, the heat conductivity of the composite porous heat storage medium is far higher than that of a common alkane phase-change material, and the composite porous heat storage medium has higher economic cost. The porous composite material phase change heat storage medium 10 absorbs heat from the cold ends of the flat plate type pulsating heat pipe heat absorption plate 3 and the loop type pulsating heat pipe 6 to melt and phase change, and then transfers the heat to the separated type small heat pipe evaporator 11 through solidification and heat release, so that the heat storage and heat release functions of solar energy are realized.

The utility model discloses a portable small-size solar energy heat pipe heater's theory of operation does: the core components of the whole device are a loop type pulsating heat pipe 6 and a separated small-sized heat pipe evaporator 11. In the daytime, sunlight enters the heat collection box through the glass cover plate 4, and is absorbed by the selective absorption coating 7 to enter the first evaporation section 34 of the flat type pulsating heat pipe heat absorption plate 3 and the second evaporation section 61 of the loop type pulsating heat pipe 6, and working media in the flat type pulsating heat pipe heat absorption plate 3 and the loop type pulsating heat pipe 6 absorb solar radiation energy, so that the working media in the flat type pulsating heat pipe heat absorption plate 3 and the loop type pulsating heat pipe 6 are evaporated and vaporized to form steam bubbles, and the steam bubbles are rapidly expanded and boosted to push the working media to flow to the first condensation section 35 and the second condensation section 63; working media of the first condensation section 35 and the second condensation section 63 release heat to the heat storage medium through the first condensation fin 36, the second condensation fin 64 and the pipe wall of the first condensation section and the second condensation section, so that the metal material and the phase change material in the heat storage medium absorb heat and rise the temperature, the phase change material melts, phase change latent heat is absorbed, and the heat is stored in the heat storage box body. The working medium in the flat type pulsating heat pipe heat absorption plate 3 and the loop type pulsating heat pipe 6 shrinks and cracks in the first condensation section 35 and the second condensation section 63 due to the heat release of condensation, the pressure is reduced, and the temperature is reduced. The first condensation section 35 and the first evaporation section 34 of the flat type pulsating heat pipe heat absorption plate 3 jointly act to promote internal working media to circularly oscillate in the pipe and the channel, so that heat is transferred from the first evaporation section 34 of the flat type pulsating heat pipe heat absorption plate 3 to the first condensation section 35, and similarly, the heat is transferred from the second evaporation section 61 of the loop type pulsating heat pipe 6 to the second condensation section 63, so that the heat is transferred and stored from the heat collection box body to the heat storage box body. When the heat is used, a liquid working medium with lower temperature in a liquid storage header 13 of the separated small heat pipe evaporator 11 arranged in the heat storage header is absorbed to the inner wall surface of the second small heat pipe 12 through the capillary action of a liquid absorption core 16 on the inner wall of the second small heat pipe 12, the working medium is heated and evaporated after heat in the heat storage medium is absorbed through heat conduction of a heat transfer fin 15 and the pipe wall, the working medium moves upwards in the pipe and enters a steam header 14, and flows into a cold end radiator 21 of the separated small heat pipe through a steam output pipeline 17, and the working medium is condensed and liquefied after the heat is released. The heat is provided for a heat user through the radiating fins 25, the liquid which is released and condensed in the cold end radiator 21 of the separated small heat pipe flows back to the liquid storage header 13 of the separated small heat pipe evaporator 11 through the liquid return pipeline 19 arranged below under the action of gravity, and the liquid circulates back and forth in such a way, so that the circulation of the working medium and the heat transfer are realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. Portable small-size solar thermal energy pipe heater, including the thermal-arrest box, install the heat-retaining box on thermal-arrest box upper portion, steam inlet pipe (22) and with hot junction heater, its characterized in that: the heat collection box body comprises a heat collection box body outer shell (1) and a heat collection box body inner shell (1a), the heat storage box body comprises a heat storage box body outer shell (8) and a heat storage box body inner shell (9), a porous composite material phase change heat storage medium (10) is arranged in the heat storage box body, a flat type pulsating heat pipe heat absorption plate (3) and a loop type pulsating heat pipe (6) are arranged in the heat collection box body and the heat storage box body, the flat type pulsating heat pipe heat absorption plate (3) is sequentially provided with a first condensation section (35), a first insulation section (37) and a first evaporation section (34) from top to bottom, the loop type pulsating heat pipe (6) is sequentially provided with a second condensation section (63), a second insulation section (62) and a second evaporation section (61) from top to bottom, the heat collection box body is of a cuboid structure and comprises a first bottom plane, a first two side faces, a first upper side face and a first lower, the first upper side surface is provided with two rectangular notches for the first condensation section (35) and the second condensation section (63) to extend into the heat storage box body, the heat storage box body is of a cuboid structure and comprises a second bottom plane, a second side surface and a second lower side surface, the second lower side surface is provided with two rectangular notches, the first evaporation section (34) and the second evaporation section (61) extend out of the heat collection box body, the hot end heater comprises a separated small heat pipe cold end radiator (21), a steam inlet pipe (22), a liquid return pipe (23) and a plurality of first small-diameter heat pipes (24) connected in parallel between the steam inlet pipe (22) and the liquid return pipe (23), the steam inlet pipe (22) is communicated with the top of the heat storage box body through a steam output pipeline (17), the liquid return pipe (23) is communicated with one end of the bottom of the hot box body through a liquid return pipeline (19).

2. The portable small solar heat pipe heater of claim 1, wherein: the solar heat collection box is characterized in that a glass cover plate (4) is arranged inside the heat collection box body, and the glass cover plate (4) is tightly attached to and sealed with four side faces of the shell (1) of the heat collection box body.

3. The portable small solar heat pipe heater of claim 1, wherein: the heat storage box is characterized in that a separated small heat pipe evaporator (11) is arranged inside the heat storage box body, the separated small heat pipe evaporator (11) is arranged between a first condensation section (35) and a second condensation section (63) in parallel, the separated small heat pipe evaporator (11) comprises a steam collecting pipe (14) and a liquid storage collecting pipe (13) which are arranged at the upper end and the lower end of the heat storage box body, a plurality of second small-diameter heat pipes (12) which are connected in parallel are arranged between the steam collecting pipe (14) and the liquid storage collecting pipe (13), a liquid absorbing core (16) is attached to the inner wall surface of each second small-diameter heat pipe (12), the bottom of the liquid absorbing core (16) extends into the liquid storage collecting pipe (13), the liquid absorbing core (16) is made of a porous material, the upper end and the lower end of each second small-diameter heat pipe (12) are respectively communicated with the steam collecting pipe (14) and the liquid storage collecting pipe (13), and the top of, the side of the liquid storage header (13) is communicated with a liquid return pipeline (19).

4. The portable compact solar thermal tube heater of claim 3, wherein: the outer wall welding of second minor diameter heat pipe (12) has heat transfer fin (15) that many levels set up, the outer wall of first minor diameter heat pipe (24) is equipped with radiating fin (25), movable support (26) that are used for the support are installed to the bottom of liquid return pipe (23), the pulley is installed to the bottom of movable support (26), be provided with on steam output pipeline (17) and use switch (18) immediately, be provided with check valve (20) on liquid return pipeline (19).

5. The portable small solar heat pipe heater of claim 1, wherein: the flat type pulsating heat pipe heat absorption plate is characterized in that a plurality of loop type channels (31) formed by connecting straight parallel channels and alternate connecting elbow channels in series are formed in the middle plane of the flat type pulsating heat pipe heat absorption plate (3), 1 outlet groove (32) with internal threads is formed in the upper side face of the flat type pulsating heat pipe heat absorption plate (3), the outlet groove (32) is located outside the flat type pulsating heat pipe heat absorption plate (3), the outlet groove (32) is communicated with the loop type channels (31), and an outlet short pipe (33) with the inner diameter is connected to the internal threads of the outlet groove (32).

6. The portable small solar heat pipe heater of claim 1, wherein: the top of the loop type pulsating heat pipe (6) is communicated with a liquid filling pipe (65), and a second condensation fin (64) which is horizontally arranged is welded on the outer wall of a second condensation section (63) of the loop type pulsating heat pipe (6).

7. The portable small solar heat pipe heater of claim 1, wherein: the heat collection box comprises a heat collection box outer shell (1), a heat collection box inner shell (1a) and a heat storage box body, wherein a heat insulation layer (2) is arranged between the heat storage box body and the heat collection box body outer shell (8) and the heat storage box body inner shell (9).

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