Unpowered pressure-bearing type solar evacuated tube collector

Abstract

The utility model relates to the field of solar water heaters, and discloses an unpowered pressure-bearing type solar vacuum tube collector which comprises a support, a water storage tank is arranged on one side of the upper surface of the support, a plurality of vacuum heat collecting tubes are fixedly connected to the outer wall of the support through the water storage tank, and sliding grooves are formed in the two sides of the side surface of the support; overflowed water is conveyed into a plurality of sprayers through an overflow pipe to be sprayed out, dust on the outer walls of a plurality of vacuum heat collecting pipes is softened, a servo motor drives a lead screw to rotate in a sliding groove, a plurality of lower cleaning sleeves are connected through a plurality of connecting plates, and the cleaning effect is improved. The cleaning cotton blocks in the cavities are tightly attached to the outer walls of the vacuum heat collecting pipes, then the sliding blocks on the two sides are driven to move, the multiple lower cleaning sleeves are driven to move along the outer walls of the vacuum heat collecting pipes at the same time, and therefore the outer walls of the multiple vacuum heat collecting pipes are cleaned at the same time; the effect of preventing dust accumulation from affecting the heat energy conversion efficiency of the vacuum heat collecting pipe is achieved.

Description

Technical Field

[0001] This application relates to the field of solar water heaters, and particularly to a non-powered pressure-bearing solar vacuum tube collector. Background Art

[0002] A solar water heater is a heating device that converts solar energy into heat energy, heating water from a low temperature to a high temperature to meet the hot water usage of people in life and production; existing water heaters all achieve the heating of cold water through vacuum tube heat collection.

[0003] In the prior art, since non-powered solar water heaters are exposed to the outside all year round, the accumulation of dust on the outer wall of the hollow heat collection tube is serious. Generally, non-powered solar water heaters are not designed with a dust removal device for the heat collection tube, resulting in the accumulation of dust on the heat collection tube hindering the direct solar radiation and reflected radiation, reducing the amount of radiation reaching the heat absorption layer in the vacuum inner tube, and affecting the heat energy conversion efficiency of the vacuum heat collection tube.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the problem of not designing a dust removal device for the heat collection tube, this application provides a non-powered pressure-bearing solar vacuum tube collector.

[0006] A non-powered pressure-bearing solar vacuum tube collector provided by this application adopts the following technical solution:

[0007] A non-powered pressure-bearing solar vacuum tube collector includes a bracket. On one side of the upper surface of the bracket, a water storage tank is provided. The outer wall of the bracket is fixedly connected with a plurality of vacuum heat collection tubes through the water storage tank. On both sides of the side surface of the bracket, chutes are opened. On one side of the interior of each chute, a lead screw is rotatably connected. On one side of the outer wall of each lead screw, a slider is threadedly connected. On one side of the outer wall of each vacuum heat collection tube, a lower cleaning sleeve is slidably connected. Between adjacent two of the lower cleaning sleeves, they are connected through a connecting plate. On one side of the upper surface of each lower cleaning sleeve, an upper cleaning sleeve is rotatably connected.

[0008] Preferably, on one side of the interior of each of the upper cleaning sleeve and the lower cleaning sleeve, a cavity is opened. Inside each lower cleaning sleeve, a cleaning cotton block is arranged through the cavity.

[0009] Preferably, on one side of the lower surface of each upper cleaning sleeve, a first magnet is provided. On the upper surface of each lower cleaning sleeve corresponding to the side of the first magnet, a second magnet is provided.

[0010] Preferably, a fixing groove is formed on the side surface of the bracket corresponding to one side of the lead screw. A servo motor is arranged on one side inside the fixing groove, and the driving end of the servo motor penetrates through the inner wall of the fixing groove and is fixedly connected to one side of the lead screw.

[0011] Preferably, an overflow pipe is fixedly connected to one side of the outer wall of the water storage tank. A plurality of spray heads are arranged on one side of the outer wall of the overflow pipe. A water inlet pipe is fixedly connected to one side of the side surface of the water storage tank.

[0012] Preferably, a water outlet pipe is fixedly connected to one side of the side surface of the water storage tank. A heat exchange pipe is arranged on one side inside the water storage tank, and both ends of the heat exchange pipe extend to the outside of the water storage tank.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] 1. The overflow water is conveyed into a plurality of spray heads through the overflow pipe and sprayed out, so as to soften the dust on the outer walls of a plurality of vacuum heat collecting tubes. The servo motor drives the lead screw to rotate inside the sliding groove. A plurality of connecting plates are used to connect between a plurality of lower cleaning sleeves, so that the cleaning cotton blocks inside the cavity are closely attached to the outer walls of the vacuum heat collecting tubes. Then, by driving the sliders on both sides to move, a plurality of lower cleaning sleeves are driven to move along the outer walls of the vacuum heat collecting tubes at the same time, so as to clean the outer walls of a plurality of vacuum heat collecting tubes simultaneously; compared with the prior art, it has the effect of avoiding dust accumulation from affecting the heat energy conversion efficiency of the vacuum heat collecting tubes.

[0015] 2. The outer shape of the cleaning cotton block is set to be arc-shaped. The exposed surface of the first magnet is set to be the S pole, and the exposed surface of the second magnet is set to be the N pole. Through the attraction between the opposite poles of the first magnet and the second magnet, the upper cleaning sleeve and the lower cleaning sleeve are connected, and the cleaning cotton block is fixed inside the cavity, so that the cleaning cotton block is closely attached to the outer wall of the vacuum heat collecting tube; compared with the prior art, it has the effect of facilitating the replacement of the cleaning cotton block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the overall solar water heater according to an embodiment of the application;

[0017] Figure 2 is a schematic side view structural diagram of the solar water heater according to an embodiment of the application;

[0018] Figure 3 is a schematic structural diagram inside the sliding groove according to an embodiment of the application;

[0019] Figure 4 is a schematic structural diagram of the cleaning sleeve according to an embodiment of the application;

[0020] Figure 5 is a schematic structural diagram inside the water storage tank according to an embodiment of the application.

[0021] Description of reference numerals: 1, support; 2, water storage tank; 3, water inlet pipe; 4, overflow pipe; 5, nozzle; 6, vacuum heat collecting tube; 7, upper cleaning sleeve; 8, chute; 9, servo motor; 10, slider; 11, lead screw; 12, lower cleaning sleeve; 13, first magnet; 14, second magnet; 15, cavity; 16, cleaning cotton block; 17, fixing groove; 18, connecting plate; 19, water outlet pipe; 20, heat exchange tube. Specific implementation mode

[0022] The following is combined with the attached Figures 1-5 to further elaborate on this application in detail.

[0023] The embodiment of this application discloses a non-powered pressure-bearing solar vacuum tube collector. Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, a non-powered pressure-bearing solar vacuum tube collector. On one side of the upper surface of the bracket 1, there is a water storage tank 2. The outer wall of the bracket 1 is fixedly connected with a number of vacuum heat collection tubes 6 through the water storage tank 2. The connection between the number of vacuum heat collection tubes 6 and the water storage tank 2 enables the number of vacuum heat collection tubes 6 to absorb the heat of the sun's irradiation and heat the water stored inside the bracket 1. On both sides of the side surface of the bracket 1, there are sliding grooves 8. On one side of the inside of each sliding groove 8, there is a screw rod 11 rotatably connected. Through the sliding grooves 8 opened on both sides of the outer wall of the bracket 1, it is convenient for the installed sliding grooves 8 to rotate inside. On one side of the outer wall of each screw rod 11, there is a slider 10 threadedly connected. Through the connection between the screw rod 11 and the slider 10, and the size of the slider 10 is adapted to the size of the sliding groove 8, the rotation of the screw rod 11 drives the slider 10 to move along the inner wall of the sliding groove 8. Among them, the spiral angle of the outer wall of each screw rod 11 is set to 20 degrees. At the same time, the screw lift of the screw rod 11 is less than the equivalent friction angle of the screw pair composed of the screw rod 11 and the slider 10, forming self-locking to prevent movement caused by external reasons. On one side of the outer wall of each vacuum heat collection tube 6, there is a lower cleaning sleeve 12 slidably connected. Between adjacent two lower cleaning sleeves 12, there is a connecting plate 18 for connection. Through a number of connecting plates 18, the number of lower cleaning sleeves 12 are connected to each other, and the sliders 10 on both sides are respectively connected to the lower cleaning sleeves 12 on both sides. Then, when the screw rod 11 rotates to drive the slider 10 to move, it drives a number of lower cleaning sleeves 12 to move along the outer wall of the vacuum heat collection tube 6. On one side of the upper surface of each lower cleaning sleeve 12, there is an upper cleaning sleeve 7 rotatably connected. On one side of the inside of both the upper cleaning sleeve 7 and the lower cleaning sleeve 12, there is a cavity 15. Inside each lower cleaning sleeve 12, there is a cleaning cotton block 16 arranged through the cavity 15. Through the cavity 15 opened inside the upper cleaning sleeve 7 and the lower cleaning sleeve 12 being adapted to the size of the cleaning cotton block 16, and the outer shape of the cleaning cotton block 16 being set as an arc shape, the cleaning cotton block 16 can be sleeved on the outer wall of the vacuum heat collection tube 6 through the notch on the outer wall of the cleaning cotton block 16 and installed inside the cavity 15 at the same time. By closing the upper cleaning sleeve 7, the cleaning cotton block 16 is fixed inside the cavity 15. Then, when the screw rod 11 rotates to drive a number of lower cleaning sleeves 12 to move along the outer wall of the vacuum heat collection tube 6, a number of cleaning cotton blocks 16 clean the side of the vacuum heat collection tube 6 facing the sun, achieving the effect of facilitating the cleaning of the dust on the outer wall of the vacuum heat collection tube 6 and improving the heat energy conversion efficiency of the vacuum heat collection tube 6.

[0024] Refer to Figure 4, on one side of the lower surface of the upper cleaning sleeve 7, a first magnet 13 is provided. On the upper surface of the lower cleaning sleeve 12, a second magnet 14 is provided corresponding to one side of the first magnet 13. The exposed surface of the first magnet 13 installed at the bottom of the upper cleaning sleeve 7 is set as the S pole, and the exposed surface of the second magnet 14 installed at the top of the lower cleaning sleeve 12 is set as the N pole. When the upper cleaning sleeve 7 is closed, the first magnet 13 and the second magnet 14 attract each other with opposite polarities, and then the upper cleaning sleeve 7 and the lower cleaning sleeve 12 are connected. The cleaning cotton block 16 is fixed inside the cavity 15, and the cleaning cotton block 16 is closely attached to the outer wall of the vacuum heat collecting tube 6, which is convenient for better cleaning the dust on the outer wall of the vacuum heat collecting tube 6, achieving the effect of facilitating the replacement of the cleaning cotton block 16.

[0025] Refer to Figure 2 and Figure 3 , on the side surface of the bracket 1, a fixing groove 17 is opened corresponding to one side of the lead screw 11. On one side inside the fixing groove 17, a servo motor 9 is provided. The model of the servo motor 9 can be selected as the HBS57 type. The driving end of the servo motor 9 penetrates the inner wall of the fixing groove 17 and is fixedly connected to one side of the lead screw 11. Through the opened fixing groove 17 in contact with the outside air, the internal servo motor 9 can be cooled. Through the connection between the driving end of the servo motor 9 and the lead screw 11, the servo motor 9 drives the lead screw 11 to rotate inside the sliding groove 8. Among them, the electrical components appearing in this application are externally connected to a power supply and a control switch during use. At the same time, a solar photovoltaic module, a timer, a processor can be connected by wires to the servo motor 9. The solar photovoltaic module can supply electrical energy to the servo motor 9, and at the same time, the time is set through the timer. After reaching the time, a signal is transmitted to the processor to control the rotation of the servo motor 9 to drive the rotation of the lead screw 11, and then there is no need for manual control of the operation of the servo motor 9.

[0026] Refer to Figure 1 and Figure 2 , on one side of the outer wall of the water storage tank 2, an overflow pipe 4 is fixedly connected. On one side of the outer wall of the overflow pipe 4, a number of spray heads 5 are provided. On one side of the side surface of the water storage tank 2, a water inlet pipe 3 is fixedly connected. Through the water inlet pipe 3 installed on the side wall of the water storage tank 2, the user adds water to the inside of the water storage tank 2. At the same time, due to the overflow pipe 4 installed on the outer wall of the water storage tank 2, since the user does not know whether the water is full, the overflowing water is conveyed into the number of spray heads 5 through the overflow pipe 4 and sprayed out, so as to drain and clean the dust on the outer walls of the number of vacuum heat collecting tubes 6, achieving the effect of facilitating the cleaning of the outer walls of the vacuum heat collecting tubes 6.

[0027] Refer to Figure 1 , Figure 2 , and Figure 5, a water outlet pipe 19 is fixedly connected to one side of the side surface of the water storage tank 2. By providing the water outlet pipe 19, it is convenient to transport the heated water to the households for use. A heat exchange pipe 20 is arranged on one side inside the water storage tank 2, and both ends of the heat exchange pipe 20 extend to the outside of the water storage tank 2. Among them, the heat exchange pipe 20 inside the water storage tank 2 is a 316L stainless steel pipe with a DN65 specification. The 316L stainless steel pipe is a stainless steel material with a low carbon content and has good corrosion resistance in terms of material. It uses the addition of molybdenum to improve corrosion resistance and can maintain good stability in high-temperature and corrosive environments. Due to its excellent corrosion resistance and mechanical properties, it is applicable to the pipeline systems in industries such as chemical engineering, petroleum, pharmaceuticals, and food. Then, by installing the heat exchange pipe 20, the purpose is that the water in the heat exchange pipe 20 only exchanges heat with the water in the vacuum heat collecting tube 6 and the water storage tank 2 without being connected, so that the hot water flowing in the DN65 stainless steel pipe can play a pressure-bearing effect.

[0028] The implementation principle of an unpowered pressure-bearing solar vacuum tube collector in an embodiment of the present application is as follows: During the use of an unpowered solar water heater, dust is likely to adhere to the outer walls of several vacuum heat collecting tubes 6. Through the overflow pipe 4 installed on the outer wall of the water storage tank 2, the overflowing water is transported into several nozzles 5 and sprayed out, so as to soften the dust on the outer walls of several vacuum heat collecting tubes 6. Subsequently, the servo motor 9 drives the lead screw 11 to rotate inside the chute 8, so that the rotation of the lead screw 11 drives the slider 10 to move along the inner wall of the chute 8. Several lower cleaning sleeves 12 are connected by several connecting plates 18, and due to the attraction between the first magnet 13 and the second magnet 14 with opposite polarities, the cleaning cotton block 16 is closely attached to the outer wall of the cavity 15. Then, when driving the sliders 10 on both sides to move, several lower cleaning sleeves 12 are driven to move along the outer walls of the vacuum heat collecting tubes 6, thereby driving several cleaning cotton blocks 16 to clean several vacuum heat collecting tubes 6 simultaneously, increasing the heat energy conversion efficiency of the vacuum heat collecting tubes 6.

[0029] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0032] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A non-powered pressure-bearing solar vacuum tube collector, comprising a bracket (1), characterized in that: A water storage tank (2) is arranged on one side of the upper surface of the bracket (1); a plurality of vacuum heat collecting tubes (6) are fixedly connected to the outer wall of the bracket (1) through the water storage tank (2); slide grooves (8) are provided on both sides of the side surface of the bracket (1); a screw rod (11) is rotatably connected to the inner side of the slide groove (8); a slider (10) is threadedly connected to the outer wall side of the screw rod (11); a lower cleaning sleeve (12) is slidably connected to the outer wall side of the vacuum heat collecting tube (6); two adjacent lower cleaning sleeves (12) are connected by a connecting plate (18); and an upper cleaning sleeve (7) is rotatably connected to the upper surface side of the lower cleaning sleeve (12).

2. The unpowered pressure-bearing solar vacuum tube collector according to claim 1 is characterized in that: A cavity (15) is provided on one side of the interior of the upper cleaning sleeve (7) and the lower cleaning sleeve (12), and a cleaning cotton block (16) is provided inside the lower cleaning sleeve (12) through the cavity (15).

3. The unpowered pressure-bearing solar vacuum tube collector according to claim 1 is characterized in that: A first magnet (13) is provided on one side of the lower surface of the upper cleaning sleeve (7), and a second magnet (14) is provided on the side of the upper surface of the lower cleaning sleeve (12) corresponding to the first magnet (13).

4. The unpowered pressure-bearing solar vacuum tube collector according to claim 1 is characterized in that: A fixing groove (17) is provided on the side surface of the bracket (1) corresponding to one side of the screw rod (11); a servo motor (9) is provided on one side of the interior of the fixing groove (17); a driving end of the servo motor (9) passes through the inner wall of the fixing groove (17) and is fixedly connected to one side of the screw rod (11).

5. The unpowered pressure-bearing solar vacuum tube collector according to claim 1 is characterized in that: An overflow pipe (4) is fixedly connected to one side of the outer wall of the water storage tank (2), a plurality of nozzles (5) are arranged on one side of the outer wall of the overflow pipe (4), and a water inlet pipe (3) is fixedly connected to one side of the side surface of the water storage tank (2).

6. The unpowered pressure-bearing solar vacuum tube collector according to claim 1 is characterized in that: A water outlet pipe (19) is fixedly connected to one side surface of the water storage tank (2), a heat exchange pipe (20) is provided on one side inside the water storage tank (2), and both ends of the heat exchange pipe (20) extend to the outside of the water storage tank (2).

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