CN111426072B - Method for heating by solar heat pipe - Google Patents
Method for heating by solar heat pipe Download PDFInfo
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- CN111426072B CN111426072B CN202010288349.5A CN202010288349A CN111426072B CN 111426072 B CN111426072 B CN 111426072B CN 202010288349 A CN202010288349 A CN 202010288349A CN 111426072 B CN111426072 B CN 111426072B
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- Prior art keywords
- heat
- storage box
- heat storage
- cleaning mechanism
- base ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/20—Cleaning; Removing snow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to a method for heating by utilizing solar heat pipes, which is characterized in that a plurality of heat storage box part heat pipes are arranged on a heat storage box, the heat release ends of the heat storage box part heat pipes are positioned in the heat storage box, the heat absorption ends of the heat storage box part heat pipes are positioned outside the heat storage box, a rotatable reflecting plate is arranged below each heat storage box part heat pipe, so that sunlight directly irradiates the heat absorption ends of the heat storage box part heat pipes, the sunlight irradiating the reflecting plate is reflected to the heat absorption ends of the heat storage box part heat pipes through the reflecting plate, the heat absorption ends of the heat storage box part heat pipes absorb the heat of solar energy and then are transferred to fluid in the heat storage box through the heat release ends of the heat storage box part heat pipes, and the reflecting plate is driven by a driving mechanism to rotate so that the reflecting plate always faces the sun. The invention is used for heating fluid by utilizing solar energy to provide heat for the drying oven for drying the transformer.
Description
Technical Field
The invention relates to the technical field of heating, in particular to a method for heating by utilizing a solar heat pipe.
Background
In the production process of the characteristic transformer, the transformer needs to be dried by an oven. The existing drying oven for drying the transformer generates steam by burning diesel oil to heat a water supply tank, and then radiates heat when the steam flows through a heat exchange pipe positioned in the drying oven to realize the drying effect. Therefore, the existing transformer production equipment cannot utilize solar energy to heat the oven so as to dry the transformer.
Disclosure of Invention
The first purpose of the invention is to provide a method for heating by using a solar heat pipe, which is used for heating fluid by using solar energy to provide heat for an oven for drying a transformer.
The second purpose of the invention is to provide a method for heating by using a solar heat pipe, which can clean the heat absorption end of the heat pipe, and solve the problem that the dust on the surface of the heat pipe needs to be cleaned manually when the heat pipe uses solar energy.
The third purpose of the invention is to provide a method for cleaning the cleaning cloth layer by using a solar heat pipe, which solves the problem that the cleaning cloth layer of the cleaning ring can not be cleaned on line.
The technical problem is solved by the following technical scheme: the utility model provides an utilize solar thermal energy pipe heating method, its characterized in that installs a plurality of heat-retaining box portion heat pipes on heat-retaining box, and the end of giving out heat of heat-retaining box portion heat pipe is located inside the heat-retaining box, the end of absorbing heat of heat-retaining box portion heat pipe is located the outside of heat-retaining box sets up a reflector panel that can rotate in the below of each heat-retaining box portion heat pipe, makes the sunlight except that the direct irradiation is served in the heat absorption of heat-retaining box portion heat pipe still through the heat absorption end that the reflector panel will shine the sunlight reflection on the reflector panel to the end of absorbing heat of heat-retaining box portion heat pipe, and the heat end of absorbing heat of heat-retaining box portion heat pipe shifts for the fluid in the heat-retaining box through the end of giving out heat of heat-retaining box portion heat pipe, and the reflector panel still rotates through the drive mechanism drive and makes the reflector panel face the sun all the time. When the heat storage box is used, the hot fluid in the heat storage box is conveyed to a place such as an oven and the like to be used as a heat source. The part of the sun which is irradiated away from the side of the heat absorption end of the heat pipe of the heat storage box part irradiates the reflector and is reflected back to the heat absorption end of the heat pipe of the heat storage box part by the reflector for utilization, thereby improving the utilization rate of solar energy. When the reflector driving mechanism is used, the rotating angular speed of the reflector is equal to the rotating angular speed of the sun with the reflector as the center, so that the reflector always keeps facing the sun, and poor heating effect caused by backlight is prevented.
Preferably, the heat absorbing end of the heat pipe of the heating box part is of a linear structure, and the extending direction of the rotation axis of the reflector is the same as the extending direction of the heat absorbing end of the heat pipe of the heat storage box part. The structure is compact.
Preferably, a generatrix of the reflecting surface of the reflector is an arc line, and a center line of a circle where the arc is located is a rotation axis of the reflector. The gap between the reflecting plate and the heat absorbing end of the heat pipe of the heat storage box part can be kept constant along the circumferential direction of the heat absorbing end of the heat pipe of the heat storage box part, and the cleaning is convenient.
Preferably, a generatrix of the backlight surface of the reflector is an arc line, and the generatrix of the reflector surface of the reflector and the generatrix of the backlight surface of the reflector are coaxial. The structure is compact.
Preferably, set up a plurality of cylindrical archs on the heat storage tank, heat storage tank portion heat pipe one-to-one ground cylindrical bellied terminal surface passes cylindrical arch and inserts in the heat storage tank, the reflector panel is equipped with the go-between, the reflector panel with cylindrical arch links together one-to-one, the go-between cover is established and can be connected with rotating cylindrical arch is last. The connecting part of the reflector and the heat storage box can be used as a rotating shaft when the reflector rotates, and the structure is compact and good.
Preferably, the reflector driving mechanism comprises a connecting ring portion outer gear ring coaxially arranged on the connecting ring, a rack meshed with the connecting ring portion outer gear ring, and a rack translation mechanism driving the rack to do reciprocating linear motion. When the reflector is used, the reciprocating translation of the rack drives the forward and reverse rotation of the gear ring outside the connecting ring part, so that the reflector rotates to face the sun all the time, and the reflector resets after the sun falls off a mountain.
Preferably, the outer gear rings of the connecting ring parts on all the reflectors are meshed on the same rack. The structure is compact and the synchronism is good. The control is convenient.
Preferably, the rack translation mechanism includes a rack driving motor that rotates from a driving gear and a driving gear engaged with the rack.
Preferably, the rack translation mechanism comprises a telescopic cylinder, a cylinder body of the telescopic cylinder is connected with the heat storage tank, and a movable rod of the telescopic cylinder is connected with the rack.
Preferably, a dust removing mechanism is arranged for removing dust from the heat absorbing end of the heat pipe of the heat storage box part and the reflecting surface of the reflecting plate, the heat absorbing end of the heat pipe of the heat storage box part is of a linear structure, the dust removing mechanism of the heat pipe of the heat storage box part comprises a plurality of base rings which can be sleeved on the heat absorbing end of the heat pipe of the heat storage box part in a one-to-one correspondence manner, a base ring translation mechanism which drives the base rings to do reciprocating translation motion along the extending direction of the heat absorbing end of the heat pipe of the heat storage box part and base ring lifting cylinders which drive the base ring translation mechanism to lift, adjacent base rings are connected together through connecting strips, an inner cloth coating layer is arranged on the inner peripheral surface of each base ring, and an outer cloth coating layer is arranged on the outer peripheral surface of each base ring; when the base ring lifting cylinder jacks up the base ring translation mechanism, the inner wiping cloth layer is abutted with the lower side surface of the heat absorption end of the heat storage box part heat pipe and is spaced from the upper side surface of the heat absorption end of the heat storage box part heat pipe, and the outer wiping cloth layer is spaced from the light reflecting surface of the light reflecting plate; when the base ring translation mechanism is pulled down by the lifting cylinder, the inner wiping cloth layer is disconnected with the lower side face of the heat absorption end of the heat storage box part heat pipe and is abutted with the upper side face of the heat absorption end of the heat storage box part heat pipe, and the outer wiping cloth layer is abutted with the light reflecting face of the light reflecting plate. When cleaning, the base ring is driven to reciprocate, the base ring removes dust on the surface of the heat absorption end of the heat pipe of the heat storage box part through the inner wiping cloth layer, and removes dust on the light reflection surface of the light reflection plate through the outer wiping cloth layer. In the dust removal process, the parts to be cleaned of the heat absorption ends of the light reflecting plate and the heat storage box part heat pipe are only cleaned in one moving direction of the base ring and are disconnected with the cleaning cloth layer in the other moving direction of the base ring, so that the cleaning effect can be improved. The second object of the invention is achieved.
Preferably, the inner and outer wiping cloth layers are both elastic structures. Because the base ring is concentric with the heat absorption end of the heat pipe of the heat storage box part, the gap between the base ring and the heat absorption end of the heat pipe of the heat storage box part is changed along the circumferential direction of the base ring, and the technical scheme can ensure that the wiping cloth layer can be reliably abutted with the heat absorption end of the heat pipe of the heat storage box part to be carried out and cleaned. Preferably, the inner and outer wiping cloth layers are made of sponge.
The invention also comprises a base ring storage space which is positioned at one end of the reflector plate, which is far away from the heat storage box, and is used for storing the base ring after the base ring is separated from the heat absorption end of the heat pipe of the heat storage box part, and the reflector plate is positioned outside the base ring storage space. The base ring can not shield the heat absorption end of the heat pipe of the heat storage box part when the base ring does not remove dust to the heat absorption end of the heat pipe of the heat storage box part, so that the lower heat absorption effect of the heat absorption end of the heat pipe of the heat storage box part is avoided being interfered. During this technical scheme, outer rag layer and reflector panel contact, interior rag layer and the upside surface contact of the heat absorption end of heat-retaining box portion heat pipe when base ring moves towards base ring storage space for the dust falls to base ring storage space and the part is the one end of detaining at the reflector panel. The dust is detained when reflector panel one end, then receives when the vibration wind blows can disperse again and open the reflector panel to be unfavorable for maintaining the storage dirt effect of reflector panel.
Preferably, one side of the base ring facing the heat storage box is provided with a dust collecting groove for collecting dust scraped off by the inner wiping cloth layer from the upper part of the heat absorbing end of the heat pipe of the heat storage box part. The dust that wipes down when can make the base ring remove towards heat storage box place direction and the downside surface of the heat absorption end of the clean heat storage box portion heat pipe of inner cleaning cloth layer falls to and connects the dirt inslot, avoids dropping on the reflector panel and influences the storage effect of reflector panel and the dirt on outer mopping layer with higher speed.
Preferably, the base ring is further provided with a plug sealing spring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust receiving groove, a plug which is opened upwards is arranged in the dust exhaust hole, and the plug sealing spring is used for driving the plug to seal the dust exhaust hole. The dust in the dust collecting groove is convenient to discharge.
Preferably, the end face of the base ring is provided with a vertical guide sliding groove extending in the vertical direction, and the plug is connected in the vertical guide sliding groove in a sliding manner. When the dust exhaust hole needs to be closed after the plug is opened, the plug can reliably and automatically close the dust exhaust hole.
Preferably, the plug sealing spring is a pressure spring and is located in the vertical guide sliding groove. The layout is compact, and the dust generated during the working of the plug sealing spring can be reduced.
Preferably, the part of the upper end surface of the plug, which is positioned outside the sliding groove, is an inclined surface which inclines towards one end far away from the base ring. The effect of dust discharge can be avoided being influenced by the blocking of the plug when the dust is discharged.
Preferably, the base ring translation mechanism comprises two driving units, all base rings are located between the two driving units, each driving unit comprises a base, a connecting block, a guide rod connected to the base, a screw rod rotatably connected to the base and a screw rod driving motor driving the screw rod to rotate, the guide rod penetrates through the connecting block, the screw rod is in threaded connection with the connecting block, the connecting block is connected with the base rings together, the screw rod is parallel to the guide rod, and the extending direction of the screw rod is the same as that of the heat absorbing end of the heat pipe of the heat storage box part. The stability of the driving base ring in translation is good.
Preferably, the two drive units share the screw drive motor. It is possible to have both drive units reliably drive the base ring in synchronism with each other.
Preferably, the base includes the chassis and connects two collateral branch bracers at the chassis both ends, the direction of distribution of two collateral branch bracers is with the extending direction of guide arm is the same, the both ends of guide arm are connected on two collateral branch bracers, the both ends of lead screw are rotated and are connected on two collateral branch bracers, the connecting block is located between two collateral branch bracers.
Preferably, the base ring cleaning mechanism is arranged to clean the inner wiping cloth layer and the outer wiping cloth layer of the base ring in a one-to-one correspondence manner, the inner circumferential surface and the outer circumferential surface of the base ring are concentric, the base ring cleaning mechanism comprises a cleaning mechanism part outer rotating shaft capable of penetrating into the base ring, a rotating shaft driving motor for driving the cleaning mechanism part outer rotating shaft to rotate, a plurality of inner extrusion rods for extruding the inner wiping cloth layer and a plurality of outer extrusion rods for extruding the outer wiping cloth layer, the inner extrusion rods and the outer extrusion rods are connected together through the cleaning mechanism part outer rotating shaft, and the inner extrusion rods and the outer extrusion rods are distributed along the circumferential direction of the cleaning mechanism part outer rotating shaft. The cleaning cloth layer needs to be extruded and moved to be sleeved on the outer rotating shaft of the cleaning mechanism part, the outer rotating shaft of the cleaning mechanism part rotates to enable the inner extrusion rod to move along the circumferential direction of the base ring to perform transposition extrusion on the inner cleaning cloth layer so as to beat out dust on the inner cleaning cloth layer, and the outer cleaning cloth layer performs transposition extrusion on the outer cleaning cloth layer so as to beat out dust on the outer cleaning cloth layer for the extrusion rod to move along the circumferential direction of the base ring. The third purpose of the invention is realized, and the cleaning effect is better by taking the cleaning cloth layer as an elastic structure.
Preferably, when the base ring is sleeved on the outer rotating shaft of the cleaning mechanism part to a set position, both ends of the inner extrusion rod exceed the inner wiping cloth layer along the axial direction of the base ring, and both ends of the outer extrusion rod exceed the outer wiping cloth layer along the axial direction of the base ring. Can improve the cleaning effect when cleaning the rag layer.
Preferably, the base ring is towards one side of the heat storage box is provided with a dust collecting groove for collecting dust which is scraped down by an inner wiping cloth layer on a heat absorption end of a heat pipe of the heat storage box part, an end cap sealing spring is further arranged on the base ring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust collecting groove, an end cap which is opened upwards is arranged in the dust exhaust hole, the end cap sealing spring is used for driving the end cap to seal the dust exhaust hole, the end cap is made of a ferromagnetic body, and an inner extrusion rod is provided with a magnet which is positioned between the end cap and an outer rotating shaft of the cleaning mechanism part and is adsorbed when the inner extrusion rod is aligned with the end cap so that the end cap is opened. In the cleaning process of the rag layer, when the inner extrusion rod rotates to be aligned with the plug, namely the magnet is closest to the plug, the magnet adsorbs the plug to open the plug. When the plugs and the magnets are staggered along the circumferential direction of the base ring, the adsorption force of the magnets to the plugs is reduced, and the plugs close the dust discharge holes again under the action of plug closing springs. The dust collected during the dust removal of the base ring is automatically discharged when the cleaning cloth layer is cleaned.
Preferably, an inner hole is arranged in the outer rotating shaft of the cleaning mechanism part, an inner rotating shaft of the cleaning mechanism part is arranged in the inner hole in a penetrating way, the inner rotating shaft of the cleaning mechanism part is connected with the rotating structure of the inner rotating shaft, the outer rotating shaft of the cleaning mechanism part is eccentrically arranged with the inner rotating shaft of the cleaning mechanism part, the outer rotating shaft of the cleaning mechanism part is provided with a plurality of guide pipes which are distributed along the circumferential direction of the outer rotating shaft of the cleaning mechanism part and extend radially and penetrate through the inner hole, an extrusion rod connecting rod and an extrusion rod connecting rod inward moving spring for driving the extrusion rod connecting rod to move towards the inner hole are arranged in the guide pipe in a penetrating way, the inner end of the extrusion rod connecting rod is aligned with the circumferential surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod and the outer extrusion rod are connected to the outer end of the extrusion rod connecting rod, and the rotating angular speeds of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are unequal; when the extrusion rod connecting rod is positioned at the position where the gap between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part is minimum, the inner end of the extrusion rod connecting rod is abutted against the peripheral surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is pressed on the inner wiping cloth layer, and the outer extrusion rod and the outer wiping cloth layer are spaced; when the extrusion rod connecting rod is positioned at the maximum clearance between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the extrusion rod connecting rod is spaced from the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is spaced from the inner wiping cloth layer, and the outer extrusion rod presses the outer wiping cloth layer. This technical scheme makes inside and outside extrusion pole not only can follow base ring circumference and remove, can strike the rag layer moreover to improve the clean effect to the rag layer.
Preferably, the both ends of hole are sealed and are formed pivot portion seal chamber, only one end of clean mechanism portion inner shaft is located pivot portion seal chamber, interior pivot revolution mechanic is located the outside in pivot portion seal chamber, pivot portion seal chamber links together with the aspiration pump, the sealed sliding connection of extrusion stem connecting rod is in the guide tube, the uide bushing is equipped with the entrance point orientation interior the mopping layer with the dust absorption passageway of pivot portion seal chamber intercommunication. During the use, this raise dust that will strike the rag through bleeding adsorbs away to on the rag layer in can avoiding the raise dust to drop again, improved the effect when removing dust to the rag layer.
Preferably, the guide tube is spaced from the inner wipe layer. Prevent the rag layer from blocking the dust suction channel.
Preferably, one end of the inner hole is sealed by a rubber plate, the rotating shaft in the cleaning mechanism part penetrates through the rubber plate to enter the rotating shaft part sealing cavity, and the rubber plate is connected with the rotating shaft in the cleaning mechanism part in a sealing mode. The sealing connection between the inner and outer rotating shafts which rotate eccentrically can be conveniently realized.
Preferably, the inner rotary shaft rotating structure includes an inner rotary shaft portion outer gear ring coaxially provided on the cleaning mechanism portion inner rotary shaft, a drive gear meshing with the inner rotary shaft portion outer gear ring, and an inner rotary shaft drive motor driving the drive gear to rotate.
Preferably, the inner extrusion rod is connected with the outer rotating shaft of the cleaning mechanism part through an extrusion rod connecting rod, and the outer extrusion rod is connected with the extrusion rod connecting rod through an intermediate connecting rod. The structure is compact and good.
The technical scheme has the following advantages: the fluid can be heated by utilizing solar energy, so that a foundation is laid for the oven to utilize the solar energy as an energy source; the utilization rate of solar energy is high; the dust can be automatically removed from the heat absorption end of the heat pipe; can carry out self-cleaning to the rag layer of clean mechanism.
Drawings
Fig. 1 is a schematic top view of a reflective tracking solar heat pipe heating apparatus according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of a reflective tracking solar heat pipe heating apparatus according to a second embodiment of the present invention;
FIG. 4 is a schematic view of the heat absorption end of the heat pipe of the heat storage tank projected along the direction B of FIG. 3 when the heat absorption end is cleaned;
FIG. 5 is an enlarged partial schematic view of FIG. 4;
figure 6 is a schematic representation of the base ring as it is being cleaned viewed in a direction opposite to direction B of figure 3 and in cross-section;
FIG. 7 is an enlarged partial schematic view at C of FIG. 6;
fig. 8 is a partially enlarged schematic view of fig. 3 at D.
In the figure: the rack translation mechanism 70, the heat storage box 71, the reflector 72, the heat release end 73 of the heat storage box heat pipe, the heat absorption end 74 of the heat storage box heat pipe, the cylindrical protrusion 75, the connection ring 76, the connection ring outer gear ring 77, the rack 78, the driven gear 79, the rack driving motor 80, the base ring 81, the base ring lifting cylinder 82, the connection strip 83, the connection leg 84, the inner wiping layer 85, the outer wiping layer 86, the base ring storage space 87, the dust receiving groove 88, the plug closing spring 89, the dust exhaust hole 90, the plug 91, the vertical guide chute 92, the part 93 of the plug with the upper end surface outside the chute, the driving unit 94, the base 95, the connection block 96, the guide rod 97, the lead screw 98, the lead screw driving motor 99, the bottom frame 100, the side supporting block 101, the cleaning mechanism outer rotating shaft 121, the rotating shaft driving motor 102, the inner extrusion rod 103, the outer extrusion rod 104, the magnet 105, the cleaning mechanism inner rotating shaft 106, the outer gear ring 107, the outer rotating shaft of the outer gear ring 107, the cleaning mechanism portion, the outer gear ring of the outer rotating shaft portion, A driving gear 108, an outer rotating shaft driving motor 109, a guide pipe 110, a pressing rod connecting rod 111, a pressing rod connecting rod inward shift spring 112, an intermediate connecting rod 113, a minimum clearance 114 between the cleaning mechanism part outer rotating shaft and the cleaning mechanism part inner rotating shaft, a maximum clearance 115 between the cleaning mechanism part outer rotating shaft and the cleaning mechanism part inner rotating shaft, a rotating shaft part sealing cavity 116, a suction pump 117, an inlet port 118, a dust suction passage 119, and a rubber plate 120.
Detailed Description
The technical solution of the present invention is described in detail and fully with reference to the accompanying drawings.
Embodiment one, referring to fig. 1 and 2, a method for heating using a solar heat pipe is implemented by a reflective tracking solar heat pipe heating apparatus. The reflecting tracking solar heat pipe heating device comprises a heat storage tank 71, a reflecting plate driving mechanism and a plurality of reflecting plates 72. The heat storage box is provided with a plurality of heat storage box part heat pipes which are arranged in parallel. The heat release end 73 of the heat pipe of the heat storage tank part is positioned inside the heat storage tank. The heat absorbing end 74 of the heat pipe of the heat storage tank portion is located outside the heat storage tank. The heat absorption end of the heat pipe of the heating box part is of a linear structure. The reflectors are correspondingly positioned below the heat pipes of the heat storage box part one by one. The heat storage tank is provided with a plurality of cylindrical protrusions 75. The heat pipes of the heat storage box part penetrate through the cylindrical bulge through the end surface of the cylindrical bulge in a one-to-one correspondence manner and are inserted into the heat storage box. The heat pipes of the heat storage box part are hermetically connected with the heat storage box. The reflector is provided with a coupling ring 76. The light reflecting plates are connected with the cylindrical bulges in a one-to-one correspondence manner. The connecting ring is sleeved on and can be rotatably connected to the cylindrical protrusion. The reflector driving mechanism comprises a connecting ring portion outer gear ring 77 coaxially arranged on the connecting ring, a rack 78 meshed with the connecting ring portion outer gear ring, and a rack translation mechanism 79 driving the rack to do reciprocating linear motion. The outer gear rings of the connecting ring parts on all the reflectors are meshed on the same rack 78. The rack translation mechanism includes a rack drive motor 80 that rotates from the drive gear 79 and the drive gear, meshing with the rack. Of course, the rack translation mechanism can be a telescopic cylinder, the cylinder body of the telescopic cylinder is connected with the heat storage tank, the movable rod of the telescopic cylinder is connected with the rack, and the telescopic direction of the telescopic cylinder is the same as the extending direction of the rack. When the reflector is used, the rack is reciprocated and translated to drive the gear ring outside the connecting ring portion to rotate forwards and reversely, so that the reflector rotates to keep facing the sun all the time. The extending direction of the rotating axis of the reflector is the same as the extending direction of the heat absorbing end of the heat pipe of the heat storage box part. The generatrix of the reflecting surface (i.e. the inner peripheral surface) of the reflector is an arc line, and the central line of the circle where the arc is positioned is the rotation axis of the reflector. And the bus of the backlight surface of the reflector is an arc line, and the bus of the backlight surface of the reflector is coaxial with the bus of the backlight surface of the reflector.
When heating, fluid (water and air) is filled in the heat storage tank or the fluid circulates through the heat storage tank, the solar heat collector is arranged at a place where the sun can shine, after the sun shines on the heat absorption end of the heat pipe of the heat storage tank part, heat is absorbed by the heat absorption end of the heat pipe of the heat storage tank part and is dissipated from the heat dissipation end of the heat pipe of the heat storage tank part, so that the fluid in the heat storage tank is heated, and then the hot fluid in the heat storage tank is conveyed to an oven and the like to be used as a heat source. The part of the sun which is irradiated away from the side of the heat absorption end of the heat pipe of the heat storage box part irradiates the reflector and is reflected back to the heat absorption end of the heat pipe of the heat storage box part by the reflector for utilization, thereby improving the utilization rate of solar energy. When the reflector driving mechanism is used, the rotating angular speed of the reflector is equal to the rotating angular speed of the sun with the reflector as the center, so that the reflector always keeps facing the sun, and poor heating effect caused by backlight is prevented.
The second embodiment is different from the first embodiment in that:
referring to fig. 3, 4, 5, 6, 7 and 8, the solar heat pipe heating apparatus further includes a dust removing mechanism for removing dust from the heat absorbing end of the heat pipe of the heat storage tank and the light reflecting surface of the light reflecting plate, and a base ring cleaning mechanism for cleaning the base ring in a one-to-one correspondence manner. The dust removing mechanism comprises a plurality of base rings 81 which can be sleeved on the heat absorbing ends of the heat pipes of the heat storage box part in a one-to-one correspondence manner, a base ring translation mechanism which drives the base rings to do reciprocating translation motion along the extension direction of the heat absorbing ends of the heat pipes of the heat storage box part, and a base ring lifting cylinder 82 which drives the base ring translation mechanism to lift. Adjacent base rings are connected together by connecting strips 83. The connecting strip is provided with connecting feet 84 at both ends. The connection foot is connected on the terminal surface of base ring towards heat storage box one end and is realized the connection of connecting strip and base ring, and this connected mode can avoid the rotation of connecting strip interference extrusion strip. The inner circumference of the base ring is provided with an inner wipe layer 85. The inner wiping cloth layer is of an annular structure extending along the circumferential direction of the base ring. The inner wiping cloth layer is of an elastic structure and is made of sponge. An outer rag layer 86 is arranged on the peripheral surface of the base ring. The outer wiping cloth layer is of an elastic structure and is made of sponge.
The invention also includes a base ring storage space 87 at the end of the reflector remote from the heat storage tank. The base ring is separated from the heat absorption end of the heat pipe of the heat storage box part and then is positioned in the base ring storage space. The reflector plate is located outside the base ring storage space. One side of the base ring facing the heat storage box is provided with a dust collecting groove 88 for collecting dust wiped from the heat absorbing end of the heat pipe of the heat storage box part by the inner wiping cloth layer. The base ring is also provided with a plug sealing spring 89. The lowest point of the bottom wall of the dust collecting groove is provided with a dust discharging hole 90. A plug 91 which is opened upwards is arranged in the dust exhaust hole. The plug sealing spring is used for driving the plug to seal the dust discharging hole. The end face of the base ring is provided with a vertical guide chute 92 extending in the up-down direction. The plug is connected in the vertical guide chute in a sliding manner. The plug sealing spring is a pressure spring. The plug sealing spring is positioned in the vertical guide sliding groove. The part 93 of the upper end face of the plug outside the chute is an inclined plane sloping towards the end away from the base ring. The base ring translation mechanism comprises two drive units 94, with all base rings located between them. The driving unit comprises a base 95, a connecting block 96, a guide rod 97 connected to the base, a screw rod 98 rotatably connected to the base, and a screw rod driving motor 99 for driving the screw rod to rotate. The guide rod is arranged on the connecting block in a penetrating way. The screw rod is in threaded connection with the connecting block. The connecting blocks are connected with the base rings on the extreme edges. The screw rod is parallel to the guide rod. The extending direction of the screw rod is the same as the extending direction of the heat absorbing end of the heat pipe of the heat storage box part. The two driving units share a screw rod driving motor. The base includes a base frame 100 and two side support blocks 101 connected at both ends of the base frame. The distribution direction of the two side supporting blocks is the same as the extending direction of the guide rod. Two ends of the guide rod are connected to the two side supporting blocks. Two ends of the screw rod are rotatably connected to the two side supporting blocks. The connecting block is located between the two side support blocks. The inner and outer peripheral surfaces of the base ring are concentric.
The process of dedusting the heat absorption end of the heat pipe of the heat storage box part and the reflecting surface of the reflecting plate comprises the following steps: the base ring translation mechanism drives the base ring to do left reciprocating linear motion so that the base ring moves back and forth between the two ends of the reflector. When the base ring moves towards the heat storage box, the base ring lifting cylinder jacks up the base ring translation mechanism, so that the base ring moves upwards to abut against the inner wiping cloth layer and wraps the whole circumference of the lower surface of the heat absorption end of the heat storage box part heat pipe, the inner wiping cloth layer is spaced from the upper side surface of the heat absorption end of the heat storage box part heat pipe (namely, the base ring is disconnected and not contacted), and the outer wiping cloth layer is spaced from the reflecting surface of the reflecting plate (namely, the outer wiping cloth layer is disconnected and not contacted), so that only dust on the lower side part of the surface of the heat absorption end of the heat storage box part heat pipe is wiped down in the moving process, and the wiped dust falls into the dust receiving groove. When the base ring moves towards the direction far away from the heat storage box, the base ring translation mechanism is pulled down by the base ring lifting cylinder, so that the base ring moves downwards to abut against the inner wiping cloth layer and wraps the whole circumference of the upper surface of the heat absorption end of the heat storage box part heat pipe, the inner wiping cloth layer is spaced from the lower side surface of the heat absorption end of the heat storage box part heat pipe (namely, the inner wiping cloth layer is disconnected from the lower side surface of the heat absorption end of the heat storage box part heat pipe), the outer wiping cloth layer is abutted to the reflective surface of the reflective plate, so that the base ring moves only to wipe the upper side part of the surface of the heat absorption end of the heat storage box part heat pipe and the reflective surface of the reflective plate for dust removal, and the wiped dust falls into the base ring storage space
The base ring cleaning mechanism is positioned on one side of the base ring storage space, which is far away from the heat storage tank. The base ring cleaning mechanism comprises a plurality of cleaning mechanism outer rotating shafts which can penetrate into the base ring in a one-to-one correspondence manner and a rotating shaft driving motor 102 for driving the cleaning mechanism outer rotating shafts to rotate (all the cleaning mechanism outer rotating shafts share one motor, and of course, one motor is also possible). Each cleaning mechanism part outer rotating shaft is connected with 4 inner extrusion rods 103 for extruding the inner wiping cloth layer and 4 outer extrusion rods 104 for extruding the outer wiping cloth layer. The inner and outer extrusion rods are distributed along the circumferential direction of the outer rotating shaft of the cleaning mechanism part. When the base ring is sleeved on the outer rotating shaft of the cleaning mechanism part to a set position, the two ends of the inner extrusion rod exceed the inner wiping cloth layer along the axial direction of the base ring, and the two ends of the outer extrusion rod exceed the outer wiping cloth layer along the axial direction of the base ring. The plug is made of ferromagnet. The inner extrusion rod is provided with a magnet 105 which adsorbs the plug to open the plug when the inner extrusion rod is positioned between the plug and the outer rotating shaft of the cleaning mechanism part and is aligned with the plug. An inner hole is arranged in the outer rotating shaft of the cleaning mechanism part. An inner rotating shaft 106 of the cleaning mechanism part is arranged in the inner hole in a penetrating way. The inner rotating shaft of the cleaning mechanism part is connected with the rotating structure of the inner rotating shaft. The inner rotary shaft rotating structure includes an inner rotary shaft portion outer gear ring 107 coaxially provided on the cleaning mechanism portion inner rotary shaft, a drive gear 108 meshing with the inner rotary shaft portion outer gear ring, and an inner rotary shaft drive motor 109 driving the drive gear to rotate. All the inner rotating shaft rotating structures share one inner rotating shaft driving motor for driving, and of course, one of the inner rotating shaft driving motors is also possible. The outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are eccentrically arranged. The outer rotating shaft of the cleaning mechanism part is provided with a plurality of guide tubes 110 which run through the inner hole and radially extend along the circumferential direction of the outer rotating shaft of the cleaning mechanism part. An extrusion rod connecting rod 111 and an extrusion rod connecting rod inward moving spring 112 for driving the extrusion rod connecting rod to move towards the inner hole are arranged in the guide pipe in a penetrating mode. The inner end of the connecting rod of the extrusion rod is aligned with the circumferential surface of the rotating shaft in the cleaning mechanism part. The inner extrusion rod is connected to the outer end of the extrusion rod connecting rod. The outer extrusion rods are connected to the extrusion rod connecting rods by intermediate connecting rods 113. The rotating angular speeds of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are unequal. When the extrusion rod connecting rod is positioned at the minimum gap 114 between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the extrusion rod connecting rod is abutted against the circumferential surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is pressed on the inner wiping cloth layer, and the outer extrusion rod and the outer wiping cloth layer are spaced; when the connecting rod of the extrusion rod is positioned at the maximum position 115 of the gap between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the connecting rod of the extrusion rod is spaced from the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is spaced from the inner cleaning cloth layer, and the outer extrusion rod presses the outer cleaning cloth layer. The two ends of the inner hole are closed to form a rotating shaft part sealing cavity 116, and only one end of the rotating shaft in the cleaning mechanism part is positioned in the rotating shaft part sealing cavity. The inner rotating shaft rotating structure is positioned outside the rotating shaft part sealing cavity. The shaft seal cavity is connected to the inlet of the air pump 117. The extrusion rod connecting rod is connected in the guide pipe in a sealing and sliding manner. The guide sleeve is provided with a dust suction channel 119, the inlet end 118 of which is communicated with the rotating shaft part sealing cavity of the inner wiping cloth layer. The guide pipe and the inner rag layer are always kept spaced. One end of the bore is closed by a rubber plate 120. The rotating shaft in the cleaning mechanism part passes through the rubber plate and enters the rotating shaft part sealing cavity. The rubber plate is connected with the rotating shaft in the cleaning mechanism part in a sealing way.
The process of cleaning the inner and outer cloth coating layers on the base ring comprises the following steps: the base ring is driven by the extrusion driving mechanism to be sleeved on the outer rotating shaft of the cleaning mechanism part, the wall of the base ring is positioned between the inner extrusion rod and the outer extrusion rod, then the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part rotate and the air suction pump is started, and the inner extrusion rod and the outer extrusion rod generate reciprocating translation along the radial direction of the base ring along the hand of the inner extrusion rod rotating along the circumferential direction of the base ring as a result of the rotation of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, so that the inner extrusion rod beats different parts of the inner wiping cloth layer, and the dust on the inner wiping cloth layer falls off and the dust falling off from the inner wiping cloth layer is pumped away by the air suction pump; the outer squeezing rod beats different parts of the outer wiping cloth layer so as to lead the dust on the outer wiping cloth layer to fall down. The magnet also enables the plug to be opened and the dust in the movable dust collecting groove to fall out.
Claims (9)
1. A method for heating by utilizing solar heat pipes is characterized in that a plurality of heat storage box part heat pipes are arranged on a heat storage box, the heat release ends of the heat storage box part heat pipes are positioned in the heat storage box, the heat absorption ends of the heat storage box part heat pipes are positioned outside the heat storage box, a rotatable reflecting plate is arranged below each heat storage box part heat pipe, so that sunlight directly irradiates the heat absorption ends of the heat storage box part heat pipes, the sunlight irradiating the reflecting plate is reflected to the heat absorption ends of the heat storage box part heat pipes through the reflecting plate, the heat absorption ends of the heat storage box part heat pipes absorb the heat of solar energy and then are transferred to fluid in the heat storage box through the heat release ends of the heat storage box part heat pipes, and the reflecting plate is driven by a driving mechanism to rotate so that the reflecting plate always faces the sun; the dust removing mechanism of the heat storage box part comprises a plurality of base rings, a base ring translation mechanism and a base ring lifting cylinder, wherein the base rings can be sleeved on the heat absorbing ends of the heat storage box part heat pipes in a one-to-one correspondence manner, the base rings are driven to do reciprocating translation motion along the extending direction of the heat absorbing ends of the heat storage box part heat pipes, the base rings are driven to move up and down by the base ring translation mechanism and the base ring lifting cylinder, the adjacent base rings are connected together through connecting strips, an inner cloth coating layer is arranged on the inner circumferential surface of each base ring, and an outer cloth coating layer is arranged on the outer circumferential surface of each base ring; when the base ring lifting cylinder jacks up the base ring translation mechanism, the inner wiping cloth layer is abutted with the lower side surface of the heat absorption end of the heat storage box part heat pipe and is spaced from the upper side surface of the heat absorption end of the heat storage box part heat pipe, and the outer wiping cloth layer is spaced from the light reflecting surface of the light reflecting plate; when the base ring translation mechanism is pulled down by the lifting cylinder, the inner wiping cloth layer is disconnected with the lower side face of the heat absorption end of the heat storage box part heat pipe and is abutted with the upper side face of the heat absorption end of the heat storage box part heat pipe, and the outer wiping cloth layer is abutted with the light reflecting face of the light reflecting plate.
2. The method of heating using a solar thermal pipe according to claim 1, a plurality of cylindrical bulges are arranged on the heat storage tank, one pair of heat pipes of the heat storage tank part penetrate through the cylindrical bulges through the end surfaces of the cylindrical bulges and are inserted into the heat storage tank, the reflecting plate is provided with a connecting ring, the reflecting plate and the cylindrical bulges are correspondingly connected together one by one, the go-between cover is established and can be connected with rotating on the cylindrical arch, reflector panel actuating mechanism is in including coaxial setting link portion outer ring gear on the go-between, with link portion outer ring gear meshing rack and the rack translation mechanism that drives the rack and be reciprocal linear motion together, rack translation mechanism drive rack be reciprocal linear motion and drive link portion outer ring gear carry out just reversing, thereby realize the rotation of reflector panel.
3. A method of heating using a solar thermal pipe according to claim 1, wherein the inner and outer canvas layers are both of an elastic structure.
4. The method according to claim 1, wherein the base ring translation mechanism comprises two driving units, all the base rings are located between the two driving units, the driving units comprise a base, a connecting block, a guide rod connected to the base, a screw rod rotatably connected to the base, and a screw rod driving motor for driving the screw rod to rotate, the guide rod is arranged on the connecting block in a penetrating manner, the screw rod is connected to the connecting block in a threaded manner, the connecting block is connected to the base ring, the screw rod is parallel to the guide rod, and the extension direction of the screw rod is the same as the extension direction of the heat absorption end of the heat pipe of the heat storage box.
5. The method according to claim 1, wherein a base ring cleaning mechanism is provided to clean the inner and outer wiping cloth layers of the base ring in a one-to-one correspondence manner, the inner and outer circumferential surfaces of the base ring are concentric, the base ring cleaning mechanism comprises a cleaning mechanism outer rotating shaft capable of penetrating into the base ring, a rotating shaft driving motor for driving the cleaning mechanism outer rotating shaft to rotate, a plurality of inner squeezing rods connected with the cleaning mechanism outer rotating shaft to squeeze the inner wiping cloth layer, and a plurality of outer squeezing rods connected with the cleaning mechanism outer rotating shaft to squeeze the outer wiping cloth layer, and the inner and outer squeezing rods are distributed along the circumferential direction of the cleaning mechanism outer rotating shaft.
6. The method according to claim 5, wherein a dust collecting groove for collecting dust scraped from the heat absorbing end of the heat pipe of the heat storage box portion by the inner coating layer is formed in one side of the base ring facing the heat storage box portion, a plug sealing spring is further arranged on the base ring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust collecting groove, an upward-opening plug is arranged in the dust exhaust hole, the plug sealing spring is used for driving the plug to seal the dust exhaust hole, the plug is made of a ferromagnetic body, and a magnet which is used for adsorbing the plug to open the plug when the inner extrusion rod is located between the plug and the outer rotating shaft of the cleaning mechanism portion and aligned with the plug is arranged on the inner extrusion rod.
7. The method according to claim 5, wherein an inner hole is formed in the cleaning mechanism portion outer shaft, a cleaning mechanism portion inner shaft is inserted into the inner hole, the cleaning mechanism portion inner shaft is connected with the inner shaft rotating structure, the cleaning mechanism portion outer shaft is eccentrically arranged with the cleaning mechanism portion inner shaft, a plurality of guide pipes which penetrate through the inner hole and radially extend along the circumferential direction of the cleaning mechanism portion outer shaft are arranged on the cleaning mechanism portion outer shaft, an extrusion rod connecting rod and an extrusion rod connecting rod inner displacement spring which drives the extrusion rod connecting rod to move towards the inner hole are inserted into the guide pipes, the inner end of the extrusion rod connecting rod is aligned with the circumferential surface of the cleaning mechanism portion inner shaft, the inner extrusion rod and the outer extrusion rod are both connected to the outer end of the extrusion rod connecting rod, the rotating angular speeds of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are unequal; when the extrusion rod connecting rod is positioned at the position where the gap between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part is minimum, the inner end of the extrusion rod connecting rod is abutted against the peripheral surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is pressed on the inner wiping cloth layer, and the outer extrusion rod and the outer wiping cloth layer are spaced; when the extrusion rod connecting rod is positioned at the maximum clearance between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the extrusion rod connecting rod is spaced from the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is spaced from the inner wiping cloth layer, and the outer extrusion rod presses the outer wiping cloth layer.
8. The method according to claim 7, wherein the inner hole is closed at both ends to form a shaft portion sealing chamber, only one end of the cleaning mechanism portion inner shaft is located in the shaft portion sealing chamber, the inner shaft rotating structure is located outside the shaft portion sealing chamber, the shaft portion sealing chamber is connected with the air pump, the pressing rod connecting rod is connected with the guide pipe in a sealing and sliding manner, and the guide sleeve is provided with a dust suction passage, an inlet end of which faces the inner wiping cloth layer, and the dust suction passage is communicated with the shaft portion sealing chamber.
9. The method of claim 8, wherein the inner bore is closed at one end by a rubber plate, the shaft passing through the rubber plate into the shaft seal cavity, and the rubber plate sealingly engaging the shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010288349.5A CN111426072B (en) | 2020-04-14 | 2020-04-14 | Method for heating by solar heat pipe |
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| CN202010288349.5A CN111426072B (en) | 2020-04-14 | 2020-04-14 | Method for heating by solar heat pipe |
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| CN111426072B true CN111426072B (en) | 2021-08-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2325715Y (en) * | 1998-03-02 | 1999-06-23 | 黄永年 | Heat collector of solar energy water heater |
| CN201173615Y (en) * | 2008-02-08 | 2008-12-31 | 卢剑超 | Array type cylindrical reflection focusing solar energy high-temperature heat collection heat storage device |
| CN103383149A (en) * | 2012-05-04 | 2013-11-06 | 力诺瑞特（上海）新能源有限公司 | Intermediate temperate solar collector |
| CN203615618U (en) * | 2013-11-01 | 2014-05-28 | 江苏美孚太阳能有限公司 | Solar heat collector with over-temperature protection function |
| CN108302794A (en) * | 2016-08-30 | 2018-07-20 | 刘凌 | A kind of solar water heater with protective device |
| CN108548338B (en) * | 2018-03-09 | 2020-05-15 | 诸暨市斌果科技有限公司 | Cleaning device for cleaning outer surface of vacuum tube in solar water heater |
| CN109323471A (en) * | 2018-10-25 | 2019-02-12 | 江苏桑力太阳能产业有限公司 | A kind of surface cleaning apparatus and its application method of solar energy heat collection pipe |
| CN110806015A (en) * | 2019-11-28 | 2020-02-18 | 江苏桑力太阳能产业有限公司 | Efficient solar water heater capable of heating uniformly |
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