Electrically-assisted medium-temperature solar heat collector capable of automatically emptying hot water

Abstract

The invention discloses an electric auxiliary medium-temperature solar heat collector capable of automatically emptying hot water, and relates to the technical field of solar heat collectors, the electric auxiliary medium-temperature solar heat collector comprises a support and a heat collection mechanism, the heat collection mechanism comprises a heat collection box, a vacuum heat collection pipe and a mounting box, and the heat collection box is fixedly mounted at the top end of the support through bolts; the multiple vacuum heat collection pipes are evenly and fixedly installed on the front side of the support through bolts, the installation box is fixedly installed at the bottom end of the front side of the support through bolts, and an electric auxiliary heating device is fixedly arranged in the heat collection box. By means of the hot water self-emptying mechanism, the process that cold water enters the warm water collecting pipe is slow, the situation that a large amount of cold water directly enters the warm water collecting pipe, and consequently the vacuum heat collecting pipe is exploded is avoided, and the service life of the solar heat collector is prolonged; and the electric auxiliary heating device is used for carrying out auxiliary heating on water in the heat collecting box under the condition that the weather condition and the environment are too low in stability, and the using effect of the heat collector is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of solar collectors, in particular to an electrically assisted medium-temperature solar collector capable of self-draining hot water. Background Art

[0002] With the growth of global energy demand and the improvement of environmental protection awareness, the development and utilization of solar energy as a clean and renewable energy source has received more and more attention. As a device that converts solar radiation energy into thermal energy, solar collectors are widely used in solar water heating systems, solar thermal power generation and other fields. The Chinese patent application with application number 201920257819.4 discloses "a self-draining solar collector system. The design of the upper inner cavity, the lower inner cavity and the V-shaped metal pipe, when it needs to be emptied in severe winter weather, the heat storage tank is drained, and the water in the upper inner cavity enters the lower inner cavity through the V-shaped metal pipe under the action of gravity, and the water in the lower inner cavity enters the heat storage tank through the pipe mouth at the lower end, so that the water in the collector is completely emptied to avoid freezing; at the same time, the upper inner cavity and the lower inner cavity are connected by a capillary tube, which can ensure that the water in the upper inner cavity is completely emptied to avoid water accumulation"; This technical solution only solves the problem of high antifreeze costs, but in extremely low temperatures at night, the water in the collector is prone to freezing, causing equipment damage. Existing solar collectors often require the user to manually control the solenoid valve to drain the water in the heat storage tank to avoid low-temperature freezing, but the water in the vacuum collector tube is often difficult to drain, causing the water retained in the vacuum collector tube to be easily frozen and reduce the service life of the vacuum collector tube. In the existing technical solution for draining water from the vacuum collector tube, when a large amount of cold water directly enters the vacuum collector tube when the solar collector has already collected heat, it is easy to cause the temperature in the vacuum collector tube to drop sharply, which can easily lead to the tube bursting. Summary of the invention

[0003] The object of the present invention is to provide an electrically assisted medium-temperature solar collector capable of self-draining hot water, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an electrically assisted medium-temperature solar thermal collector capable of self-draining hot water, comprising a bracket, a heat collection mechanism, an energy storage mechanism, a hot water self-draining mechanism and a driving mechanism: A heat collecting mechanism, the heat collecting mechanism comprising a heat collecting box, a vacuum heat collecting tube and a mounting box, the heat collecting box being fixedly mounted on the top of the bracket by bolts, the vacuum heat collecting tubes being uniformly fixedly mounted on the front side of the bracket by bolts, the mounting box being fixedly mounted on the bottom of the front side of the bracket by bolts, the top of the vacuum heat collecting tube being fixedly mounted in the heat collecting box by insertion, and the bottom of the vacuum heat collecting tube being fixedly mounted in the mounting box by insertion; An electric auxiliary heating device is fixedly arranged inside the heat collection box; A energy storage mechanism, the energy storage mechanism includes an energy storage pipe, and the energy storage pipe is fixedly installed at the inner bottom end of the heat collection box through bolts; A hot water self-draining mechanism, the hot water self-draining mechanism includes a winding rod, and the winding rod is movably installed at the bottom ends of the left and right inner side walls of the heat collection box through bearings and is located above the energy storage pipe; A driving mechanism, the driving mechanism includes a mounting seat, and the mounting seat is fixedly installed at the top right end of the energy storage pipe through bolts.

[0005] Preferably, the heat collection mechanism includes a water inlet pipe, a water outlet pipe and a temperature concentrating plate. The water inlet pipe is fixedly installed at the bottom left end of the heat collection box by insertion. The end of the water inlet pipe inside the heat collection box is located inside the left end of the energy storage pipe. The water outlet pipe is fixedly installed at the top left end of the heat collection box by insertion. The temperature concentrating plate is fixedly arranged inside the vacuum heat collection tube.

[0006] Preferably, the heat collection mechanism includes a concentrating medium-temperature tube, a temperature concentrating water pipe and a pressure balance pipe. The concentrating medium-temperature tube is fixedly installed inside the vacuum heat collection tube by insertion. A vacuum structure is formed between the concentrating medium-temperature tube and the vacuum heat collection tube. The temperature concentrating water pipe is fixedly installed inside the vacuum heat collection tube by insertion. Concentrating medium-temperature steam is filled between the temperature concentrating water pipe and the vacuum heat collection tube. The bottom end of the pressure balance pipe is fixedly installed inside the bottom end of the temperature concentrating water pipe by insertion. A section of the pressure balance pipe located inside the concentrating medium-temperature tube is closely attached to the outer wall of the temperature concentrating water pipe. A section of the pressure balance pipe located at the top of the concentrating medium-temperature tube is fixedly installed inside the temperature concentrating water pipe by insertion. One end of the pressure balance pipe located inside the temperature concentrating water pipe extends from the inside of the temperature concentrating water pipe to the top of the temperature concentrating water pipe. One end of the pressure balance pipe located outside the top of the temperature concentrating water pipe is arc-shaped and is fixedly installed in the heat collection box by insertion and extends out of the outer wall of the heat collection box.

[0007] Preferably, the energy storage mechanism includes a water outlet, an energy storage movable plate, a baffle and a push rod. The water outlet is opened in the middle of the energy storage pipe. The energy storage movable plate is slidably installed inside the energy storage pipe. The baffle is fixedly installed at the middle of the top end of the side of the energy storage movable plate away from the water inlet pipe through bolts. The push rod is fixedly installed at the middle of the side of the energy storage movable plate away from the water inlet pipe through bolts.

[0008] Preferably, the energy storage mechanism includes a push plate, a spring tube, an energy storage spring, and an air tube. The push plate is fixedly installed at one end of the push rod away from the energy storage movable plate through bolts. The spring tube is fixedly installed on the side wall of the heat collection box away from the water inlet pipe through bolts and is located in the middle of the middle-right section of the energy storage tube. The push rod is movably installed in the spring tube by insertion. The push plate is movably installed inside the spring tube by sliding. The energy storage spring is fixedly arranged inside the spring tube and is located on the side of the push plate away from the energy storage movable plate. The air tube is fixedly installed at the right bottom end of the heat collection box by insertion, and one end of the air tube located inside the heat collection box is inside the spring tube.

[0009] Preferably, the hot water self-draining mechanism includes a partition plate, a drain piston, a guide rod, and a traction rope. There are several partition plates, which are evenly fixedly sleeved on the winding rod through bolts. The drain piston is movably installed inside the temperature-collecting water pipe by sliding. The two ends of the guide rod are fixedly installed on the left and right side walls of the inner wall of the heat collection box through bolts and are located between the top of the vacuum heat collection tube and the winding rod. The traction rope is movably installed inside the temperature-collecting water pipe by insertion. The bottom end of the traction rope is fixedly arranged in the middle of the top end of the drain piston. The top end of the traction rope is fixedly installed inside the winding rod by insertion. The traction rope is made of stainless steel wire.

[0010] Preferably, the driving mechanism includes a rack, a first transmission rod, a driving gear, and a second transmission rod. The rack is fixedly installed on one side of the baffle plate close to the mounting seat through bolts. The first transmission rod is movably installed at the top end of the energy storage tube through a bearing and is located near the water outlet. The driving gear is fixedly installed at the bottom end of the first transmission rod through bolts. The second transmission rod is movably installed at one end of the mounting seat close to the first transmission rod through a bearing.

[0011] Preferably, the driving mechanism includes a first bevel gear, a third transmission rod, a second bevel gear, a first transmission chain belt, and a second transmission chain belt. The first bevel gear is fixedly sleeved on the top end of the second transmission rod through bolts. The third transmission rod is movably installed at the top end of the mounting seat through a bearing. The second bevel gear is fixedly installed at one end of the third transmission rod close to the second transmission rod. The second bevel gear is movably connected to the first bevel gear by meshing. The two ends of the first transmission chain belt are respectively movably sleeved on the top end of the first transmission rod and the second transmission rod by meshing. The two ends of the second transmission chain belt are respectively movably sleeved on the third transmission rod and the winding rod by meshing.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. When water is supplied to the heat collection box in the present invention, the water pressure drives the energy storage movable plate to move in the energy storage pipe, driving the winding rod to rotate, causing the drainage piston in the temperature accumulation water pipe to descend, facilitating the entry of cold water into the temperature accumulation water pipe for temperature accumulation heating. When the energy storage movable plate moves, the energy storage spring is compressed. After water supply to the heat collection box stops, the energy storage spring drives the energy storage movable plate to reset, driving the winding rod to reverse and driving the drainage piston to rise to drain all the hot water in the temperature accumulation water pipe. In this way, when the solar water heater is not in use in an extremely low temperature environment at night, the water in the temperature accumulation water pipe can be automatically drained into the heat collection box, and the top of the temperature accumulation water pipe is sealed by the drainage piston to prevent the water in the heat collection box from entering the temperature accumulation water pipe and avoid freezing of the water in the vacuum heat collecting tube, improving the service life of the solar water heater. The electric auxiliary heating device is used to assist in heating the water in the heat collection box under the conditions of low climate and environmental stability, further improving the use effect of the water heater; 2. In the present invention, the winding rod releases the traction rope, and the cold water entering the temperature accumulation water pipe applies pressure to the drainage piston, preventing the drainage piston from remaining stuck inside the temperature accumulation water pipe after the traction rope is released and the slow descent of the drainage piston, which makes the process of cold water entering the temperature accumulation water pipe slow. This not only prevents a large amount of cold water from directly entering the temperature accumulation water pipe and causing the vacuum heat collecting tube to burst, but also improves the service life of the solar water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 is a schematic diagram of the internal structure of the vacuum heat collecting tube provided by an embodiment of the present invention; Figure 3 is a schematic diagram of the internal structure of the heat collection box provided by an embodiment of the present invention; Figure 4 is a schematic diagram of the connection between the hot water self-draining mechanism and the driving mechanism provided by an embodiment of the present invention; Figure 5 is a schematic diagram of the internal structure of the energy storage pipe provided by an embodiment of the present invention; Figure 6 is a schematic diagram of the driving mechanism provided by an embodiment of the present invention.

[0014] In the figure: 1, support; 2, heat collection mechanism; 201, heat collection box; 202, water inlet pipe; 203, water outlet pipe; 204, vacuum heat collection tube; 205, installation box; 206, temperature concentrating plate; 207, medium-temperature heat concentrating tube; 208, temperature concentrating water pipe; 209, pressure balance pipe; 3, energy storage mechanism; 301, energy storage tube; 302, water outlet; 303, energy storage movable plate; 304, baffle plate; 305, push rod; 306, push plate; 307, spring tube; 308, energy storage spring; 309, air pipe; 4, hot water self-draining mechanism; 401, winding rod; 402, partition plate; 403, drainage piston; 404, guide rod; 405, towing rope; 5, driving mechanism; 501, rack; 502, first transmission rod; 503, driving gear; 504, mounting seat; 505, second transmission rod; 506, first bevel gear; 507, third transmission rod; 508, second bevel gear; 509, first transmission chain belt; 510, second transmission chain belt; 6, electric auxiliary heating device. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 to 6 , the present invention provides a technical solution: an electric auxiliary medium-temperature solar collector with hot water self-draining, including a support 1, and further including a heat collection mechanism 2, an energy storage mechanism 3, a hot water self-draining mechanism 4 and a driving mechanism 5: The heat collection mechanism 2, the heat collection mechanism 2 includes a heat collection box 201, a vacuum heat collection tube 204 and an installation box 205. The heat collection box 201 is fixedly installed at the top of the support 1 by bolts. There are several vacuum heat collection tubes 204, which are evenly fixedly installed on the front side of the support 1 by bolts. The installation box 205 is fixedly installed at the bottom of the front side of the support 1 by bolts. The top of the vacuum heat collection tube 204 is fixedly installed in the heat collection box 201 by insertion, and the bottom of the vacuum heat collection tube 204 is fixedly installed in the installation box 205 by insertion; An electric auxiliary heating device 6 is fixedly arranged inside the heat collection box 201; The energy storage mechanism 3, the energy storage mechanism 3 includes an energy storage tube 301, and the energy storage tube 301 is fixedly installed at the bottom inside the heat collection box 201 by bolts; The hot water self-draining mechanism 4, the hot water self-draining mechanism 4 includes a winding rod 401, and the winding rod 401 is movably installed on the bottom ends of the left and right side walls inside the heat collection box 201 through bearings, and is located above the energy storage tube 301; The driving mechanism 5, the driving mechanism 5 includes a mounting base 504, and the mounting base 504 is fixedly installed at the right top end of the energy storage pipe 301 by bolts.

[0017] The heat collection mechanism 2 includes a water inlet pipe 202, a water outlet pipe 203 and a temperature concentrating plate 206. The water inlet pipe 202 is fixedly installed at the left bottom end of the heat collection box 201 by insertion. One end of the water inlet pipe 202 located inside the heat collection box 201 is located inside the left end of the energy storage pipe 301. The water outlet pipe 203 is fixedly installed at the left top end of the heat collection box 201 by insertion. The temperature concentrating plate 206 is fixedly arranged inside the vacuum heat collection tube 204. Cold water is added into the heat collection box 201 through the water inlet pipe 202, and the hot water in the heat collection box 201 can be discharged through the water outlet pipe 203. The heat collection mechanism 2 includes a concentrating medium-temperature pipe 207, a temperature concentrating water pipe 208 and a pressure balance pipe 209. The concentrating medium-temperature pipe 207 is fixedly installed inside the vacuum heat collection tube 204 by insertion. A vacuum structure is formed between the concentrating medium-temperature pipe 207 and the vacuum heat collection tube 204. The temperature concentrating water pipe 208 is fixedly installed inside the vacuum heat collection tube 204 by insertion. Concentrating medium-temperature steam is filled between the temperature concentrating water pipe 208 and the vacuum heat collection tube 204. The bottom end of the pressure balance pipe 209 is fixedly installed inside the bottom end of the temperature concentrating water pipe 208 by insertion. A section of the pressure balance pipe 209 located inside the concentrating medium-temperature pipe 207 is closely attached to the outer wall of the temperature concentrating water pipe 208. A section of the pressure balance pipe 209 located at the top end of the concentrating medium-temperature pipe 207 is fixedly installed inside the temperature concentrating water pipe 208 by insertion. One end of the pressure balance pipe 209 located inside the temperature concentrating water pipe 208 extends from the temperature concentrating water pipe 208 towards the top end of the temperature concentrating water pipe 208. One end of the pressure balance pipe 209 located outside the top end of the temperature concentrating water pipe 208 is arc-shaped and is fixedly installed in the heat collection box 201 by insertion and extends out of the outer wall of the heat collection box 201. Solar energy is concentrated by the temperature concentrating plate 206 and the concentrating medium-temperature pipe 207 is heated after concentrating temperature, so as to heat the temperature concentrating water pipe 208, so that the cold water entering the temperature concentrating water pipe 208 in the heat collection box 201 is heated, the hot water floats upwards, and the cold water descends to form a cycle to realize solar energy heat collection. The energy storage mechanism 3 includes a water outlet 302, an energy storage movable plate 303, a baffle 304 and a push rod 305. The water outlet 302 is opened in the middle of the energy storage pipe 301. The energy storage movable plate 303 is slidably installed inside the energy storage pipe 301. The baffle 304 is fixedly installed at the middle of the top end on the side of the energy storage movable plate 303 away from the water inlet pipe 202 by bolts. The push rod 305 is fixedly installed at the middle of the side of the energy storage movable plate 303 away from the water inlet pipe 202 by bolts. The energy storage movable plate 303 is pushed towards the water outlet 302 by water pressure. When the energy storage movable plate 303 moves, the push plate 306 is driven to move through the push rod 305, and the energy storage spring 308 inside the spring tube 307 is compressed through the push plate 306. When the energy storage movable plate 303 moves to the left end of the spring tube 307, the cold water is discharged from the energy storage pipe 301 through the water outlet 302. The energy storage mechanism 3 includes a push plate 306, a spring tube 307, an energy storage spring 308, and an air tube 309. The push plate 306 is fixedly installed at one end of the push rod 305 away from the energy storage movable plate 303 through bolts. The spring tube 307 is fixedly installed on the side wall of the heat collection box 201 away from the water inlet pipe 202 through bolts, and is located in the middle of the right section of the energy storage tube 301. The push rod 305 is movably installed in the spring tube 307 by insertion. The push plate 306 is slidably installed inside the spring tube 307. The energy storage spring 308 is fixedly arranged inside the spring tube 307 and is located on the side of the push plate 306 away from the energy storage movable plate 303. The air tube 309 is fixedly installed at the right bottom end of the heat collection box 201 by insertion. One end of the air tube 309 located inside the heat collection box 201 is inside the spring tube 307. By blocking the water outlet 302 with the baffle 304, water outside the energy storage tube 301 is prevented from entering the energy storage tube 301. When the push plate 306 compresses the energy storage spring 308, the air inside the spring tube 307 is discharged through the air tube 309, so that the air pressure inside the spring tube 307 remains balanced; The hot water self-draining mechanism 4 includes a partition plate 402, a drain piston 403, a guide rod 404, and a traction rope 405. There are several partition plates 402, which are evenly fixedly sleeved on the winding rod 401 through bolts. The drain piston 403 is slidably installed inside the temperature gathering water pipe 208. The two ends of the guide rod 404 are fixedly installed on the left and right side walls of the inner wall of the heat collection box 201 through bolts, and are located between the top of the vacuum heat collection tube 204 and the winding rod 401. The traction rope 405 is movably installed inside the temperature gathering water pipe 208 by insertion. The bottom end of the traction rope 405 is fixedly arranged at the middle of the top end of the drain piston 403. The top end of the traction rope 405 is fixedly installed inside the winding rod 401 by insertion. The traction rope 405 is made of stainless steel wire. By lifting the drain piston 403 with the traction rope 405, the hot water inside the temperature gathering water pipe 208 enters the heat collection box 201, and the temperature gathering water pipe 208 is continuously closed when the water inlet pipe 202 does not supply water, preventing cold water from entering the temperature gathering water pipe 208; The driving mechanism 5 includes a rack 501, a first transmission rod 502, a driving gear 503, and a second transmission rod 505. The rack 501 is fixedly installed on the side of the baffle 304 close to the mounting seat 504 through bolts. The first transmission rod 502 is rotatably installed at the top of the energy storage tube 301 through a bearing and is located near the water outlet 302. The driving gear 503 is fixedly installed at the bottom end of the first transmission rod 502 through bolts. The second transmission rod 505 is rotatably installed at one end of the mounting seat 504 close to the first transmission rod 502 through a bearing. By driving the driving gear 503 to rotate with the rack 501, the first transmission rod 502 rotates following the driving gear 503. When the first transmission rod 502 rotates, the second transmission rod 505 is driven to rotate by the first transmission chain belt 509; The driving mechanism 5 includes a first bevel gear 506, a third transmission rod 507, a second bevel gear 508, a first transmission chain belt 509, and a second transmission chain belt 510. The first bevel gear 506 is fixedly sleeved on the top end of the second transmission rod 505 through bolts. The third transmission rod 507 is movably installed on the top end of the mounting seat 504 through a bearing. The second bevel gear 508 is fixedly installed at one end of the third transmission rod 507 close to the second transmission rod 505 through bolts. The second bevel gear 508 is movably connected to the first bevel gear 506 through meshing. The two ends of the first transmission chain belt 509 are movably sleeved on the top end of the first transmission rod 502 and the second transmission rod 505 through meshing respectively. The two ends of the second transmission chain belt 510 are movably sleeved on the third transmission rod 507 and the winding rod 401 through meshing respectively. The first bevel gear 506 drives the second bevel gear 508 to rotate, so that the third transmission rod 507 rotates following the second bevel gear 508. When the third transmission rod 507 rotates, the winding rod 401 is driven to rotate through the second transmission chain belt 510. When the winding rod 401 rotates, the traction rope 405 wound on the winding rod 401 is continuously released. When the traction rope 405 is released, the drainage piston 403 in the temperature-accumulating water pipe 208 continuously descends, so that the cold water discharged from the water outlet 302 can enter the temperature-accumulating water pipe 208 for heating.

[0018] Working principle: When the present invention is in use, cold water is added into the heat collection box 201 through the water inlet pipe 202, and the hot water in the heat collection box 201 can be discharged through the water outlet pipe 203. Before encapsulating the vacuum heat collection tube 204, concentrated heat medium steam is added into the concentrated heat medium tube 207. When the vacuum heat collection tube 204 is irradiated by sunlight, solar energy can be gathered through the temperature-accumulating plate 206, and the concentrated heat medium tube 207 accumulates heat to heat the temperature-accumulating water pipe 208, so that the cold water entering the temperature-accumulating water pipe 208 from the heat collection box 201 is heated. The hot water floats upward and the cold water descends to form a cycle to realize solar heat collection. When cold water is introduced into the water inlet pipe 202, the cold water discharged into the heat collection box 201 by the water inlet pipe 202 first enters the left section of the energy storage pipe 301, and the energy storage movable plate 303 is pushed towards the water outlet 302 by water pressure. When the energy storage movable plate 303 moves, the push plate 306 is driven to move through the push rod 305, and the energy storage spring 308 in the spring tube 307 is compressed through the push plate 306. When the energy storage movable plate 303 moves to the left end of the spring tube 307, the cold water is discharged from the energy storage pipe 301 through the water outlet 302. And during this process, the water inlet pipe 202 continuously supplies water into the energy storage pipe 301, so that the energy storage movable plate 303 is continuously pressed at the left end of the spring tube 307, and the energy storage spring 308 remains compressed during the water supply of the water inlet pipe 202. When the energy storage movable plate 303 moves, it drives the baffle 304 to move simultaneously. During the period when the energy storage movable plate 303 has not moved to the spring tube 307, the water outlet 302 is blocked by the baffle 304 to prevent the water outside the energy storage tube 301 from entering the energy storage tube 301. When the push plate 306 compresses the energy storage spring 308, the air in the spring tube 307 is discharged through the air pipe 309 to keep the air pressure in the spring tube 307 balanced; The baffle 304 drives the rack 501 to move, and the rack 501 drives the driving gear 503 to rotate, so that the first transmission rod 502 rotates following the driving gear 503. When the first transmission rod 502 rotates, the second transmission rod 505 is driven to rotate through the first transmission chain belt 509. When the second transmission rod 505 rotates, the second bevel gear 508 is driven to rotate through the first bevel gear 506, so that the third transmission rod 507 rotates following the second bevel gear 508. When the third transmission rod 507 rotates, the winding rod 401 is driven to rotate through the second transmission chain belt 510. When the winding rod 401 rotates, the traction rope 405 wound on the winding rod 401 is continuously released. When the traction rope 405 is released, the drainage piston 403 in the temperature - gathering water pipe 208 continuously descends, so that the cold water discharged from the water outlet 302 can enter the temperature - gathering water pipe 208 for heating; The cold water entering the temperature - gathering water pipe 208 exerts pressure on the drainage piston 403 to prevent the drainage piston 403 from still getting stuck inside the temperature - gathering water pipe 208 after the traction rope 405 is released. When the drainage piston 403 descends, the air between the bottom end inside the temperature - gathering water pipe 208 and the drainage piston 403 is discharged through the pressure - balancing pipe 209, thus ensuring the smooth descent of the drainage piston 403; When the water supply of the water inlet pipe 202 stops and the hot water is continuously discharged from the water outlet pipe 203, the pressure between the energy storage movable plate 303 and the water inlet pipe 202 decreases. At this time, under the elastic force of the energy storage spring 308, the push plate 306 is pushed to move in the direction away from the energy storage spring 308. At this time, the driving gear 503 is driven to reverse through the rack 501 to drive the winding rod 401 to reverse. At this time, the traction rope 405 is wound by the winding rod 401, the drainage piston 403 is lifted through the traction rope 405, and the hot water in the temperature - gathering water pipe 208 enters the heat - collecting box 201 through the drainage piston 403, and the temperature - gathering water pipe 208 is continuously closed when the water inlet pipe 202 does not supply water to prevent cold water from entering the temperature - gathering water pipe 208; When encountering bad weather conditions, the water in the heat - collecting box 201 can be heated by the electric auxiliary heating device 6, so that the device can still continue to be used. The electric auxiliary heating device 6 can also assist in heating, further improving the use effect of the device.

[0019] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0020] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrically assisted medium-temperature solar collector capable of self-draining hot water, comprising a bracket (1), characterized in that: It also includes a heat collection mechanism (2), an energy storage mechanism (3), a hot water self-draining mechanism (4) and a driving mechanism (5): A heat collection mechanism (2), the heat collection mechanism (2) comprising a heat collection box (201), a vacuum heat collection tube (204) and a mounting box (205), the heat collection box (201) being fixedly mounted on the top end of a support (1), a plurality of vacuum heat collection tubes (204) being evenly fixedly mounted on the front side of the support (1), the mounting box (205) being fixedly mounted on the bottom end of the front side of the support (1), the top end of the vacuum heat collection tube (204) being fixedly mounted in the heat collection box (201), and the bottom end of the vacuum heat collection tube (204) being fixedly mounted in the mounting box (205); An electric auxiliary heating device (6) is fixedly arranged inside the heat collecting box (201); An energy storage mechanism (3), the energy storage mechanism (3) comprising an energy storage tube (301), the energy storage tube (301) being fixedly mounted at the inner bottom end of the heat collecting box (201); A hot water self-draining mechanism (4), the hot water self-draining mechanism (4) comprising a reeling rod (401), the reeling rod (401) being movably mounted at the bottom ends of the left and right side walls inside the heat collecting box (201) and located above the energy storage tube (301); A driving mechanism (5), the driving mechanism (5) comprising a mounting seat (504), the mounting seat (504) being fixedly mounted on the top right side of the energy storage tube (301).

2. The electric-assisted medium-temperature solar collector capable of self-draining hot water according to claim 1, characterized in that: The heat collection mechanism (2) comprises a water inlet pipe (202), a water outlet pipe (203) and a heat collection plate (206); the water inlet pipe (202) is fixedly installed at the left bottom end of the heat collection box (201) by insertion; one end of the water inlet pipe (202) located inside the heat collection box (201) is located inside the left end of the energy storage tube (301); the water outlet pipe (203) is fixedly installed at the left top end of the heat collection box (201) by insertion; and the heat collection plate (206) is fixedly arranged inside the vacuum heat collection tube (204).

3. The electric-assisted medium-temperature solar collector capable of self-draining hot water according to claim 2, characterized in that: The heat collection mechanism (2) comprises a light-collecting medium-temperature tube (207), a heat-collecting water tube (208) and a pressure balance tube (209); the light-collecting medium-temperature tube (207) is fixedly installed inside the vacuum heat collection tube (204) by insertion; a vacuum structure is formed between the light-collecting medium-temperature tube (207) and the vacuum heat collection tube (204); the heat-collecting water tube (208) is fixedly installed inside the vacuum heat collection tube (204) by insertion; the space between the heat-collecting water tube (208) and the vacuum heat collection tube (204) is filled with light-collecting medium-temperature steam; the bottom end of the pressure balance tube (209) is fixedly installed inside the bottom end of the heat-collecting water tube (208) by insertion; A section of the pressure balance pipe (209) located inside the concentrated medium-temperature pipe (207) is in close contact with the outer wall of the concentrated water pipe (208); a section of the pressure balance pipe (209) located at the top of the concentrated medium-temperature pipe (207) is fixedly installed inside the concentrated water pipe (208) by insertion; an end of the pressure balance pipe (209) located inside the concentrated water pipe (208) extends from the inside of the concentrated water pipe (208) to the top of the concentrated water pipe (208); an end of the pressure balance pipe (209) located outside the top of the concentrated water pipe (208) is arc-shaped and is fixedly installed in the heat collecting box (201) by insertion, and extends out of the outer wall of the heat collecting box (201).

4. The electrically assisted medium-temperature solar collector capable of self-draining hot water according to claim 3, characterized in that: The energy storage mechanism (3) comprises a water outlet (302), an energy storage movable plate (303), a baffle (304) and a push rod (305); the water outlet (302) is opened in the middle of the energy storage tube (301); the energy storage movable plate (303) is mounted inside the energy storage tube (301) by sliding; the baffle (304) is fixedly mounted by bolts in the middle of the top end of a side of the energy storage movable plate (303) away from the water inlet pipe (202); and the push rod (305) is fixedly mounted by bolts in the middle of a side of the energy storage movable plate (303) away from the water inlet pipe (202).

5. The electric-assisted medium-temperature solar collector capable of self-draining hot water according to claim 4, characterized in that: The energy storage mechanism (3) comprises a push plate (306), a spring tube (307), an energy storage spring (308) and an air pipe (309); the push plate (306) is fixedly mounted on an end of a push rod (305) away from the energy storage movable plate (303) by means of bolts; the spring tube (307) is fixedly mounted on a side wall of the heat collector (201) away from the water inlet pipe (202) by means of bolts and is located in the middle of the middle right section of the energy storage pipe (301); the push rod (305) is inserted into the movable plate (309) to form an energy storage spring (308); and the push plate (306) is fixedly mounted on an end of a push rod (305) away from the energy storage movable plate (303) by means of bolts. The push plate (306) is movably mounted in the spring tube (307), the push plate (306) is slidably mounted inside the spring tube (307), the energy storage spring (308) is fixedly arranged inside the spring tube (307) and is located on a side of the push plate (306) away from the energy storage movable plate (303), the air pipe (309) is fixedly mounted on the right bottom end of the heat collecting box (201) by insertion, and one end of the air pipe (309) located inside the heat collecting box (201) is located inside the spring tube (307).

6. The electrically assisted medium-temperature solar collector capable of self-draining hot water according to claim 5, characterized in that: The hot water self-draining mechanism (4) comprises a partition plate (402), a drainage piston (403), a guide rod (404) and a traction rope (405); the partition plates (402) are in total a plurality and are evenly fixedly sleeved on the reeling rod (401) by bolts; the drainage piston (403) is installed inside the heat-collecting water pipe (208) by sliding; the two ends of the guide rod (404) are fixedly installed on the left and right side walls of the inner wall of the heat collecting box (201) by bolts and are located between the top end of the vacuum heat collecting tube (204) and the reeling rod (401); the traction rope (405) is installed inside the heat-collecting water pipe (208) by insertion; the bottom end of the traction rope (405) is fixedly arranged in the middle of the top end of the drainage piston (403); the top end of the traction rope (405) is fixedly installed inside the reeling rod (401) by insertion; and the traction rope (405) is made of stainless steel wire.

7. The electrically assisted medium-temperature solar collector capable of self-draining hot water according to claim 6, characterized in that: The driving mechanism (5) comprises a rack (501), a first transmission rod (502), a driving gear (503) and a second transmission rod (505); the rack (501) is fixedly mounted on a side of the baffle (304) close to the mounting seat (504) by means of bolts; the first transmission rod (502) is movably mounted on the top of the energy storage tube (301) by means of a bearing and is located close to the water outlet (302); the driving gear (503) is fixedly mounted on the bottom end of the first transmission rod (502) by means of bolts; and the second transmission rod (505) is movably mounted on an end of the mounting seat (504) close to the first transmission rod (502) by means of a bearing.

8. The electric-assisted medium-temperature solar collector capable of self-draining hot water according to claim 7, characterized in that: The driving mechanism (5) comprises a first bevel gear (506), a third transmission rod (507), a second bevel gear (508), a first transmission chain belt (509) and a second transmission chain belt (510); the first bevel gear (506) is fixedly sleeved on the top end of the second transmission rod (505) by means of bolts; the third transmission rod (507) is movably mounted on the top end of a mounting seat (504) by means of a bearing; the second bevel gear (508) is fixedly mounted on one end of the third transmission rod (507) close to the second transmission rod (505) by means of bolts; the second bevel gear (508) is movably connected to the first bevel gear (506) by means of meshing; two ends of the first transmission chain belt (509) are respectively movably sleeved on the top end of the first transmission rod (502) and the second transmission rod (505) by means of meshing; and two ends of the second transmission chain belt (510) are respectively movably sleeved on the third transmission rod (507) and the winding rod (401) by means of meshing.

Images