CN112728782A

CN112728782A - Split type heat collector

Info

Publication number: CN112728782A
Application number: CN202110008768.3A
Authority: CN
Inventors: 崔宏志; 李朝; 朱国飞
Original assignee: Shenzhen University
Current assignee: Shenzhen University
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-04-30
Anticipated expiration: 2041-01-05
Also published as: CN112728782B

Abstract

The invention belongs to the technical field of heat collectors, and particularly discloses a split type heat collector which comprises a photo-thermal conversion part, a heat storage part and a supporting part; the photothermal conversion part comprises a heat transfer plate, a photothermal film laid on the heat transfer plate, a transparent vacuum cover with a sealing cover arranged on the heat transfer plate, and a vacuum pumping device matched with the transparent vacuum cover; the heat storage part comprises a supporting box body, a phase change energy storage unit which can be replaced and arranged in a cavity of the supporting box body, and a lifting assembly which is matched with the supporting box body and used for driving the phase change energy storage unit to lift; the supporting part comprises a base, a plurality of telescopic rods vertically distributed on the upper surface of the base and a moving device arranged on the lower bottom surface of the base, and the telescopic rods are pivoted with the supporting box body. Adopt above-mentioned structural design's split type heat collector, through the setting of light and heat conversion portion, heat storage portion and supporting part, can effectively promote the light and heat conversion efficiency of solar energy, and make things convenient for thermal storage and transfer, convenient and practical.

Description

Split type heat collector

Technical Field

The invention relates to the technical field of heat collectors, in particular to a split type heat collector.

Background

The production and the life of human beings can not leave energy sources, and the energy sources are the basis of the development of human civilized society. With the increasing demand of human beings on energy, the non-renewable energy sources are in increasing shortage; in addition, the problem of energy waste is increasingly prominent due to unreasonable use of energy; meanwhile, the caused environmental pollution is becoming more serious day by day, which causes the global ecological environment to deteriorate; these problems seriously affect the sustainable development of human society. Therefore, adjusting and optimizing the energy consumption structure, improving the energy utilization efficiency, and developing and utilizing ecological, environment-friendly and efficient new energy is very slow. Solar energy has attracted extensive attention because of its natural, pollution-free and abundant reserves. The solar energy which is a clean renewable energy source is fully developed and used, and the solar energy has very important strategic significance for the whole mankind. The light-heat conversion technology developed based on solar energy resources has been put to practical use in recent years. The photo-thermal technology can reduce the artificial carbon dioxide emission, reduce the greenhouse effect brought by the traditional energy, reduce the consumption of non-renewable energy sources such as fossil fuel and the like, and provide long-term and efficient energy for social development.

The heat collector is a common way of utilizing solar energy based on a photothermal conversion technology, and has been widely used in people's production and life, for example, a solar freshwater system for desalinating seawater, a solar power plant for generating electricity, a solar dryer for drying articles, a solar cooker for cooking, a solar water heater for supplying hot water, and the like. The heat collector is widely applied in production and life, and provides a way for utilizing solar energy; however, in the present stage, in the application process of the solar thermal collector, there are still disadvantages, which are mainly expressed in that:

(1) the photothermal conversion efficiency of the heat collector is greatly influenced by external conditions. The sunlight quality is not high and the light intensity is weak due to the fact that the cloudy day and the sun are shielded by cloud layers and the like, the photo-thermal conversion efficiency of the lighting surface of the heat collector is affected, and once the photo-thermal conversion efficiency is not high, the heat collector loses efficacy.

(2) The heat collector has single function, the application scene is solidified, and the heat storage is limited. At present, most of solar heat collectors have integrated heat collecting devices and heat storage devices, so that the solar heat collectors have single functions and solidified purposes, and are not suitable for multiple application scenes. On the other hand, the heat storage device is fixed and not replaceable, and when the heat storage device is full of stored heat, more heat converted by continuous irradiation of the sun cannot be stored.

In view of the above-mentioned shortcomings in the application of solar collectors, there is a need for improvement.

Disclosure of Invention

The invention aims to provide a split type heat collector which is high in heat collection efficiency and convenient for storage and transfer of heat energy.

In order to achieve the purpose, the invention adopts the following technical scheme:

a split heat collector, comprising:

a photothermal conversion section for converting solar energy into heat energy; the photothermal conversion part comprises a heat transfer plate, a photothermal film laid on the heat transfer plate, a transparent vacuum cover arranged in a sealing way with the heat transfer plate, and a vacuumizing device matched with the transparent vacuum cover;

a heat storage part for rapidly and efficiently storing heat transferred from the photothermal conversion part; the heat storage part comprises a supporting box body, a phase change energy storage unit which can be arranged in a cavity of the supporting box body in a replaceable mode, and a lifting assembly which is matched with the supporting box body and used for driving the phase change energy storage unit to lift;

a support part for supporting the heat storage part and adjusting an angle of a light receiving surface of the photothermal conversion part; the supporting part comprises a base, a plurality of telescopic rods vertically distributed on the upper surface of the base and a moving device arranged on the lower bottom surface of the base, and the telescopic rods are pivoted with the supporting box body.

The vacuumizing device comprises an air pumping hole formed in the transparent vacuum cover, a valve matched with the air pumping hole, a thermometer and a vacuum gauge arranged on the transparent vacuum cover; the valve is connected with an external vacuum-pumping device.

Wherein a surface of the photo-thermal film is provided with a pattern array for facilitating generation of Fano resonance.

The phase change energy storage unit comprises an energy storage carrier, a heat insulation shell arranged on the periphery of the energy storage carrier, a heat insulation packaging panel matched with the heat insulation shell and used for sealing the energy storage carrier, and an indicator light and a display panel arranged on the outer side wall of the heat insulation shell.

The heat insulation packaging panel and the upper port of the heat insulation shell are horizontally and smoothly arranged, and a clamping hook detachably connected with the heat insulation shell is arranged on the heat insulation packaging panel.

The handle is arranged on one side wall of the heat insulation shell, and the groove is formed in the lower bottom surface of the heat insulation shell along the length direction.

The upper port of the supporting box body is provided with the heat transfer plate, and the lower bottom surface of the heat transfer plate is tightly attached to the energy storage carrier in the phase change energy storage unit.

The lifting assembly comprises a lifting bottom plate horizontally arranged in a cavity of the supporting box body and a driving assembly arranged on the side wall of the cavity of the supporting box body and used for driving the phase change energy storage unit to be tightly attached to the heat transfer plate.

The upper surface of the lifting bottom plate is provided with a sliding rail, and the sliding rail is in sliding fit with the groove.

Wherein, the one end of base is provided with the convenience the draw gear that the supporting part removed.

The invention has the beneficial effects that: the invention discloses a split type heat collector, which comprises a photo-thermal conversion part, a heat storage part and a supporting part, wherein the photo-thermal conversion part is arranged on the photo-thermal conversion part; the photothermal conversion part comprises a heat transfer plate, a photothermal film laid on the heat transfer plate, a transparent vacuum cover with a sealing cover arranged on the heat transfer plate, and a vacuum pumping device matched with the transparent vacuum cover; the heat storage part comprises a supporting box body, a phase change energy storage unit which can be replaced and arranged in a cavity of the supporting box body, and a lifting assembly which is matched with the supporting box body and used for driving the phase change energy storage unit to lift; the supporting part comprises a base, a plurality of telescopic rods vertically distributed on the upper surface of the base and a moving device arranged on the lower bottom surface of the base, and the telescopic rods are pivoted with the supporting box body. Adopt above-mentioned structural design's split type heat collector, through the setting of light and heat conversion portion, heat storage portion and supporting part, can effectively promote the light and heat conversion efficiency of solar energy, and make things convenient for thermal storage and transfer, convenient and practical.

Drawings

Fig. 1 is a schematic sectional view of a split type heat collector according to the present invention.

Fig. 2 is an isometric view of a split collector of the invention.

FIG. 3 is an exploded view of the insulated housing and insulated enclosure panel of FIG. 1.

In the figure:

1. a photothermal conversion section; 11. a heat transfer plate; 12. a photothermal film; 13. a transparent vacuum cover; 141. an air extraction opening; 142. a valve; 143. a thermometer; 144. a vacuum degree meter;

2. a heat storage portion; 21. supporting the box body; 221. an energy storage carrier; 222. a thermally insulating enclosure; 2221. a handle; 223. insulating the packaging panel; 224. an indicator light; 225. a display panel; 231. a lifting bottom plate; 2311. a slide rail; 2321. a lifting operating handle;

3. a support portion; 31. a base; 32. a telescopic rod; 33. a mobile device; 34. a traction device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1 to 3, the present embodiment provides a split heat collector, which includes a photothermal conversion part 1, a heat storage part 2 and a support part 3.

Specifically, the photothermal conversion part 1 is mainly used for converting solar energy into heat energy, and preferably, the photothermal conversion part 1 includes a heat transfer plate 11, a photothermal film 12 laid on the heat transfer plate 11, a transparent vacuum cover 13 sealed and arranged on the heat transfer plate 11, and a vacuum pumping device matched with the transparent vacuum cover 13; more specifically, the vacuum pumping device comprises a pumping hole 141 formed in the transparent vacuum cover 13, a valve 142 matched with the pumping hole 141, a thermometer 143 and a vacuum gauge 144 arranged on the transparent vacuum cover 13; the valve 142 is connected with an external vacuum-pumping device; in addition, the surface of the photothermal film 12 is provided with a pattern array for facilitating the generation of the fanno resonance.

Further, Fanoreance is a particular physical phenomenon, originally discovered in atomic physics, that arises from the mutual coupling between discrete local and continuously propagating modes in the system. The two modes destructively interfere to form an asymmetric line shape called Fano type. Fanorresonce is generated in the micro-nano structure and is the result of coupling of a structure local mode (dark state) and a sunlight continuous mode (bright state), and once resonance is generated, an absorption spectrum is widened. The broadening is a result of the interaction of light and substances, and can effectively enhance the light absorption efficiency of the photothermal material so as to improve the photothermal efficiency of the material.

Preferably, the photothermal conversion unit 1 having the above-described structure is a vacuum chamber surrounded by a transparent vacuum cover 13 and a heat transfer plate 11. The thermometer 143, the vacuum gauge 144, the pumping hole 141 and the valve 142 are arranged on the transparent vacuum cover 13; the temperature meter 143 is used for monitoring and displaying the temperature in the cavity in real time, the vacuum meter 144 is used for monitoring and displaying the vacuum degree in the cavity in real time, and the pumping port 141 and the valve 142 can be connected with a vacuum pumping device and used for pumping the air in the cavity to enable the air to reach a vacuum state.

The photo-thermal film 12 is laid on the heat transfer plate 11, and a regular and specific pattern array is engraved on the surface thereof, which can generate Fano resonance. The photothermal film 12 functions to greatly enhance the absorption efficiency of sunlight, improve the photothermal efficiency, convert light energy into heat energy in the photothermal conversion region under the condition of weak light, and convert low-grade sunlight into high-grade heat energy, thereby improving the utilization of solar energy and continuously transporting heat to the heat storage part 2.

The photothermal conversion section 1 operates on the following principle: the photothermal film 12 capable of generating Fano resonance efficiently converts sunlight into heat, the transparent vacuum cover restrains the heat in the cavity to prevent the heat from dissipating, and the heat restrained in the cavity can be transferred to the heat storage part 2 only through the heat transfer plate 11. In addition, the photo-thermal temperature in the cavity can be adjusted by adjusting the vacuum degree in the cavity so as to adapt to the phase change temperature of the phase change material of the heat storage part 2; the adjustment of the vacuum degree and temperature in the chamber is realized by a vacuum gauge 144, a temperature gauge 143, a pumping hole 141 and a valve 142.

Furthermore, the heat storage unit 2 in this embodiment is mainly used to quickly and efficiently store the heat transferred from the photothermal conversion unit 1; preferably, the heat storage portion 2 includes a supporting box 21, a phase change energy storage unit that is arranged in a cavity of the supporting box 21 in a replaceable manner, and a lifting assembly that is used for driving the phase change energy storage unit to lift in cooperation with the supporting box 21.

Wherein, the phase change energy storage unit includes an energy storage carrier 221, a heat insulation housing 222 disposed at the periphery of the energy storage carrier 221, a heat insulation packaging panel 223 matched with the heat insulation housing 222 for sealing the energy storage carrier 221, and an indicator 224 and a display panel 225 disposed at the outer side wall of the heat insulation housing 222, and further, as an optimal choice, in order to facilitate replacement of the phase change energy storage unit, a handle 2221 is disposed on a side wall of the heat insulation housing 222 where the indicator 224 and the display panel 225 are disposed, and a groove slidably engaged with the lifting bottom plate 231 in the lifting assembly is further disposed at the lower bottom surface of the heat insulation housing 222, so that the phase change energy storage unit is conveniently pushed into and pulled out of the supporting box 21.

It should be further described that, in the embodiment, the energy storage carrier 221 is provided with a Phase Change Material (PCM), which is a functional material capable of absorbing or releasing a large amount of energy by using a phase change process, and has the advantages of high thermal storage density, large storage capacity, low cost, good chemical stability, and the like. The principle of phase change energy storage is to utilize the phase change property of the phase change material to finish energy storage and time and space transfer, thereby realizing the use of energy with different requirements.

Furthermore, the heat transfer plate 11 is erected at the upper port of the support box 21, when the phase change energy storage unit absorbs heat, the heat insulation packaging panel 223 is removed, then the heat insulation shell 222 carrying the energy storage carrier 221 is pushed into the cavity of the support box 21, and the high heat transfer surface in the energy storage carrier 221 is tightly attached to the lower bottom surface of the heat transfer plate 11 through the lifting assembly, so as to store heat; the storage condition of the heat in the phase change energy storage unit is then judged by the indicator light 224 and the display panel 225, when the heat is fully stored, the heat insulation shell 222 carrying the energy storage carrier 221 is pulled out from the support box 21, and then the heat insulation packaging panel 223 is covered on the heat insulation shell 222 to seal the energy storage carrier 221 in the heat insulation shell 222, so as to prevent the heat loss.

More specifically, the heat insulation packaging panel 223 and the upper port of the heat insulation housing 222 in the embodiment are slidably disposed through a sliding slot, and then detachably connected to the heat insulation housing 222 through a hook on the heat insulation packaging panel 223. Thereby facilitating convenient and quick disassembly and assembly of the heat insulation package panel 223.

More specifically, the phase change energy storage unit of the heat storage unit 2 and the supporting box 21 in this embodiment are separately arranged. The phase change energy storage unit is used for storing heat transferred by the photothermal conversion part 1, and the support case 21 is used for supporting the phase change energy storage unit. The phase-change material of the phase-change energy storage unit is packaged in the energy storage carrier 221, and the energy storage carrier 221 is wrapped by the heat insulation shell 222 to prevent heat loss; notably, the thermally insulating packaging panel 223 corresponding to the high heat transfer surface of the energy storage carrier 221 is removable; when storing or releasing heat, the heat-insulating packaging panel 223 is detached, so that the high heat transfer surface of the energy storage carrier 221 is exposed; after storing or releasing heat, the heat-insulating packaging panel 223 is packaged to seal the high heat-transfer surface of the energy storage carrier 221, so as to prevent heat loss.

Further, in order to facilitate quick assembly and disassembly between the heat insulation packaging panel 223 and the heat insulation shell 222, preferably, in the embodiment, the two opposite side walls of the upper port of the heat insulation shell 222 are both provided with a sliding groove and a clamping position, so as to be conveniently matched with a sliding rail and a buckle arranged on the heat insulation packaging panel 223 correspondingly, that is, the heat insulation packaging panel 223 is locked with the corresponding clamping position through the buckle after being inserted along the sliding groove; on the contrary, after the buckle is opened, the heat-insulating packaging panel 223 can be pulled out from the upper port of the heat-insulating shell 222 along the sliding groove, and since the above structures are commonly used in the related art, they are not described in detail herein.

In addition, the bottom of the phase change energy storage unit is provided with a groove which is matched with a corresponding slide rail 2311 on the lifting bottom plate 231 in the supporting box body 21 and used for filling and disassembling the phase change energy storage unit; the side of the phase change energy storage unit is provided with an indicator lamp 224, a display panel 225 and a handle 2221.

The indicator light 224 functions as: firstly, when storing heat, judging whether the high heat transfer surface of the energy storage carrier 221 is in close contact with the heat transfer plate 11 of the photothermal conversion part 1, and when the high heat transfer surface of the energy storage carrier is in close contact with the heat transfer plate, the indicator light 224 is red and flickers; secondly, when the heat is stored, whether the phase change energy storage unit is full of heat is judged, and when the phase change energy storage unit is full of heat, the indicator lamp 224 stops flashing, and the color is changed from red to green; the storage condition of heat in the phase change energy storage unit is judged, when the phase change energy storage unit is in a full heat state, the indicator lamp 224 is green, when the heat in the phase change energy storage unit is in a non-full state, the indicator lamp 224 is red, and when the heat in the phase change energy storage unit is empty, the indicator lamp 224 is not bright.

The display panel 225 is in a grid form and is used for displaying the real-time storage condition of heat in the phase change energy storage unit and corresponds to the indicator light 224; when the phase change energy storage unit is in a full heat state, the display panel 225 displays a heat full state; when the heat in the phase change energy storage unit is in a non-full state, the display panel 225 displays the heat grid number in real time; when the heat in the phase change energy storage unit is empty, the display panel 225 is not bright.

Handle 2221 functions to: firstly, the heat-insulating panel 223 is linked with an inner groove of the heat-insulating shell 222 arranged on the energy storage carrier 221, so that the heat-insulating panel 223 can be conveniently detached and packaged; and secondly, the groove is used in combination with the groove at the bottom of the phase change energy storage unit and the slide rail 2311 of the supporting box body 21 for loading and unloading the phase change energy storage unit in the supporting box body 21. The support case 21 is connected to the photothermal conversion unit 1, and the outer shell of the support case 21 is heat-insulated to avoid heat loss.

More specifically, the lifting assembly in this embodiment includes a lifting bottom plate 231 horizontally disposed in the cavity of the supporting box 21, and a driving assembly disposed on the sidewall of the cavity of the supporting box 21 for driving the high heat transfer surface of the energy storage carrier 221 in the phase change energy storage unit to closely adhere to the heat transfer plate 11; furthermore, the upper surface of the lifting bottom plate 231 is provided with a slide rail 2311, and the slide rail 2311 is in sliding fit with the groove.

Preferably, the driving assembly is provided with a lifting operation handle 2321 and a catch. The specific structural design of the driving component in this embodiment is common in the related art, and is not described in detail here.

Specifically, the lifting bottom plate 231 in this embodiment is disposed at the bottom of the supporting box 21, and the lifting bottom plate 231 is provided with a slide rail 2311 matched with the groove at the bottom of the phase change energy storage unit; the lifting operation handle 2321 and the buckle are arranged on the side surface of the supporting box body 21 and are linked with the lifting bottom plate 231; the lifting assembly and the buckle are used in combination for lifting and fixing the phase change energy storage unit, so that the high heat transfer surface of the energy storage carrier 221 in the phase change energy storage unit is in close and full contact with the heat transfer plate 11 of the photothermal conversion part 1, thereby rapidly absorbing heat. The phase change energy storage unit and the supporting box body 21 are arranged in a split mode, and the phase change energy storage device has the advantages that: when the phase change energy storage unit is full of heat, the phase change energy storage unit can be replaced; on the one hand, the phase change energy storage unit which stores the heat is replaced from the supporting box body 21, and on the other hand, the phase change energy storage unit which does not store the heat is filled in the supporting box body 21, and the heat transferred by the photothermal conversion part 1 is continuously stored. The phase change energy storage unit full of heat can be used as a heat energy carrier to apply heat to a plurality of scenes of production and life through a conduction medium. The phase change energy storage unit is replaceable, and efficient utilization of solar energy is achieved.

More specifically, the angle of the light-receiving surface of the photothermal conversion unit 1 is adjusted in order to better support the heat storage unit 2; the supporting portion 3 in this embodiment includes a base 31, a plurality of telescopic rods 32 vertically distributed on the upper surface of the base 31, and a moving device 33 disposed on the lower bottom surface of the base 31, wherein the telescopic rods 32 are pivotally connected to the supporting box 21.

Further, one end of the base 31 is provided with a traction device 34 for facilitating the movement of the support 3. Specifically, the telescopic rod 32 of the support part 3 is connected with the support box 21 of the heat storage part 2, and provides a support function for the photothermal conversion part 1 and the heat storage part 2. This telescopic rod 32 has the following characteristics: the connection mode of the supporting box body 21 of the heat storage part 2 is hinged, and the supporting angle can be changed; ② the supporting height can be changed by extension and contraction. The supporting angle and the supporting height are cooperatively and correspondingly changed with the change of the solar irradiation angle, so that the photothermal conversion part 1 is always in the best solar irradiation in all directions, and the sunlight is absorbed to the maximum extent and is converted into heat energy.

The base 31 has a certain strength and rigidity, and is connected with the telescopic rod 32 to support the telescopic rod. The moving device 33 is connected with the base 31, consists of moving bearing wheels and is used for supporting the base 31; in addition, the movable bearing wheel also has a braking function. The moving device 33 is used for transferring the weight of the split heat collector to the ground; secondly, under some special conditions, the split type heat collector is convenient to move and change the position, for example, the split type heat collector needs to be transferred to the indoor or other places convenient to maintain under severe weather such as typhoon, rainstorm and hail or under the condition that the solar heat collector needs to be overhauled. The pulling device 34 is connected to the base 31 and used in combination with the moving device 33.

Further, the specific circuit configuration of the indicator light 224 and the display panel 225 and how to control the extension and retraction of the plurality of telescopic rods 32 in the above embodiments are disclosed in the related art, and are not described herein again.

Compared with the prior art, the split heat collector adopting the scheme has the following advantages:

(1) the photothermal conversion part 1 is arranged into a vacuum cavity and adopts a transparent vacuum cover, so that the heat converted by solar energy can be effectively bound and prevented from losing;

(2) the photo-thermal temperature in the cavity of the photo-thermal conversion part 1 can be adjusted by adjusting the vacuum degree in the cavity so as to adapt to the phase change temperature of the phase change material of the heat storage part 2;

(3) the photothermal film 12 of the photothermal conversion part 1 can generate the fanno resonance, and the effect of the fanno resonance is to greatly enhance the absorption efficiency of sunlight and improve the photothermal efficiency, so that the photothermal conversion part 1 can still convert light energy into heat energy under the condition of weak light, and the low-grade sunlight is converted into high-grade heat energy, thereby improving the utilization of the solar energy and continuously conveying the heat to the heat storage part 2;

(4) the phase change energy storage unit of the heat storage part 2 and the supporting box body 21 are arranged in a split mode, and can be replaced after the phase change energy storage unit stores heat; on the one hand, the energy storage unit that stores the full amount of heat is replaced from the support case 21, and on the other hand, the phase change energy storage unit that does not store heat is loaded into the support case 21, and the heat transferred from the photothermal conversion unit 1 is continuously stored. The phase change energy storage unit full of heat can be used as a heat energy carrier to apply heat to a plurality of scenes of production and life through a conduction medium. The energy storage unit is replaceable, so that the solar energy is efficiently utilized;

(5) the phase change energy storage unit of the heat storage part 2 is provided with an indicator lamp 224 and a display panel 225, so that the condition of the stored heat of the energy storage unit can be monitored in real time.

(6) The support box body 21 of the heat storage part 2 is provided with a lifting bottom plate 231, a sliding rail 2311, a buckle and a lifting operation handle 2321 for facilitating the filling and the dismounting of the phase change energy storage unit;

(7) the telescopic rod 32 of the supporting part 3 can change the supporting height and angle, and the supporting height and angle are cooperatively and correspondingly changed along with the change of the sun irradiation angle, so that the photothermal conversion part 1 is always positioned in the best sun irradiation in an all-around way, and the sunlight is absorbed to the maximum extent and converted into heat energy;

(8) the moving device 33 of the support 3 has a load-bearing and braking function, and functions as: firstly, transferring the weight of the solar heat collector to the ground; secondly, under some special conditions, the solar heat collector is convenient to move and change positions, for example, severe weather such as typhoon, rainstorm and hail, or the solar heat collector needs to be overhauled, and the solar heat collector needs to be transferred to the indoor or other places convenient to maintain.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A split heat collector, comprising:

2. The split heat collector according to claim 1, wherein the vacuum pumping device comprises an air pumping port arranged on the transparent vacuum cover, a valve matched with the air pumping port, a thermometer and a vacuum gauge arranged on the transparent vacuum cover; the valve is connected with an external vacuum-pumping device.

3. The split heat collector according to claim 1, wherein the surface of the photo-thermal film is provided with a pattern array for facilitating generation of Fano resonance.

4. The split heat collector according to claim 1, wherein the phase change energy storage unit comprises an energy storage carrier, a heat insulation casing arranged at the periphery of the energy storage carrier, a heat insulation packaging panel matched with the heat insulation casing for sealing the energy storage carrier, and an indicator light and a display panel arranged on the outer side wall of the heat insulation casing.

5. The split heat collector according to claim 4, wherein the heat insulating packaging panel is horizontally movably disposed with the upper port of the heat insulating housing, and the heat insulating packaging panel is provided with a hook detachably connected with the heat insulating housing.

6. The split heat collector according to claim 4, wherein a handle is provided on one side wall of the heat insulating housing, and a groove is provided on the lower bottom surface of the heat insulating housing along the length direction.

7. The split heat collector according to claim 4, wherein the heat transfer plate is erected at the upper port of the supporting box body, and the lower bottom surface of the heat transfer plate is tightly attached to the energy storage carrier in the phase change energy storage unit.

8. The split heat collector according to claim 6, wherein the lifting assembly comprises a lifting bottom plate horizontally arranged in the cavity of the supporting box body, and a driving assembly arranged on the side wall of the cavity of the supporting box body and used for driving the phase change energy storage unit to be tightly attached to the heat transfer plate.

9. The split heat collector according to claim 8, wherein the upper surface of the lifting bottom plate is provided with a sliding rail, and the sliding rail is in sliding fit with the groove.

10. The split heat collector according to claim 1, wherein one end of the base is provided with a traction device for facilitating the movement of the supporting part.