A high-efficiency solar water heater

Abstract

The utility model discloses a kind of solar water heaters of efficient heating, including inclined strut frame, vacuum tube, water inlet pipe, water outlet pipe, U-shaped tube, encapsulation jar, circulating pump, patch temperature sensor and heat-insulated water tank;Encapsulation jar is equipped with multiple pipe interfaces along its length direction, one end of vacuum tube is inserted into pipe interface, other end is connected with the bottom of inclined strut frame, the outer wall of vacuum tube is coated with light-transmitting coating, inner wall is coated with titanium nitride coating, U-shaped tube is attached in the inner wall of vacuum tube, U-shaped tube has water inlet and water outlet.The utility model is attached with U-shaped tube in the inner wall of vacuum tube, cooperate with the light-transmitting coating of vacuum tube outer wall and the titanium nitride coating of inner wall, can enhance photo-thermal conversion efficiency, reduce heat loss, effectively improve the heating efficiency of water flow;Water outlet pipe is equipped with patch temperature sensor, and is electrically connected with circulating pump, can automatically start circulating pump when water temperature reaches set value, to deliver hot water to heat-insulated water tank, effectively improve the utilization efficiency of heat energy.

Description

Technical Field

[0001] This utility model relates to the field of solar water heaters, and more particularly to a high-efficiency solar water heater. Background Technology

[0002] Solar water heaters are devices that use solar radiation to heat water. They are widely used in homes, public buildings, and industrial sectors, and have advantages such as energy saving, environmental protection, and low operating costs.

[0003] In existing technologies, solar water heaters generally use solar energy to produce hot water by combining vacuum tubes with water pipes. However, during the water heating process, the heat transfer efficiency between the vacuum tubes and water pipes is not high, which makes it difficult for the absorbed solar energy to be effectively transferred to the water body in a timely manner to raise the temperature. This results in significant heat loss and a slow heating rate, affecting the heating performance and user experience of the solar water heater.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a high-efficiency solar water heater with high heating efficiency and reduced heat loss.

[0006] To achieve this objective, the present invention adopts the following technical solution: a high-efficiency solar water heater, comprising a diagonal support frame, a vacuum tube, an inlet pipe, an outlet pipe, a U-shaped pipe, a sealing tank, a circulating pump, and an insulated water tank;

[0007] The encapsulation container is located on the top of the inclined support frame. The encapsulation container has multiple pipe interfaces along its length. One end of the vacuum tube extends into the pipe interface, and the other end is connected to the bottom of the inclined support frame.

[0008] The outer wall of the vacuum tube is coated with a light-transmitting coating, and the inner wall of the vacuum tube is coated with a titanium nitride coating.

[0009] The inlet pipe and the outlet pipe are respectively located inside the packaging tank. The U-shaped tube is attached to the inner wall of the vacuum tube. The U-shaped tube has an inlet and an outlet. The inlet is connected to the inlet pipe, and the outlet is connected to the outlet pipe.

[0010] The end of the outlet pipe is connected to one end of the circulation pump through a first pipe, and the other end of the circulation pump is connected to the insulated water tank through a second pipe. The circulation pump is used to pump the hot water in the outlet pipe into the insulated water tank.

[0011] Using the above technical solution, in the high-efficiency heating solar water heater, the light-transmitting coating is a magnesium fluoride coating, and the thickness of the magnesium fluoride coating is 20-30μm.

[0012] Using the above technical solution, the thickness of the titanium nitride coating in the high-efficiency heating solar water heater is 40-100μm.

[0013] Using the above technical solution, in the high-efficiency heating solar water heater, the outer wall of the U-shaped tube is coated with a graphene coating, and the thickness of the graphene coating is 20-60μm.

[0014] In the high-efficiency heating solar water heater described above, a sealing ring is provided inside the pipe interface, and the sealing ring is used to seal the gap between the vacuum tube and the pipe interface.

[0015] In the high-efficiency heating solar water heater described above, the inner side of the encapsulation tank is provided with a heat-insulating cotton layer.

[0016] Using the above technical solution, in the high-efficiency heating solar water heater, the inlet pipe, outlet pipe, and U-shaped pipe are all copper pipes.

[0017] The high-efficiency heating solar water heater described above also includes a patch-type temperature sensor, which is installed on the water outlet pipe and is used to detect the heating temperature of the water in the U-shaped pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention incorporates a U-shaped tube fitted into the inner wall of a vacuum tube, shortening the heat conduction path of the water flow and thus improving heat transfer efficiency. The outer wall of the vacuum tube has a light-transmitting coating to increase sunlight transmittance, while the inner wall is coated with a titanium nitride coating to enhance solar energy absorption and reduce heat loss. An inlet and outlet pipe structure is integrated within the encapsulation tank to minimize heat dissipation. A patch-type temperature sensor is installed on the outlet pipe to monitor the water temperature in real time and is electrically connected to a circulation pump. When the water temperature reaches the set value, the circulation pump automatically starts to deliver hot water to the insulated water tank for heat preservation, avoiding premature water extraction that could lead to low water temperature or energy waste, effectively improving the efficiency of thermal energy utilization. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the vacuum tube mounting structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the U-shaped tube installation structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the packaging can structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the vacuum tube structure of this utility model. Detailed Implementation

[0027] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 5As shown, this utility model embodiment provides a high-efficiency solar water heater, including a diagonal support frame 1, a vacuum tube 2, an inlet pipe 31, an outlet pipe 32, a U-shaped pipe 4, a sealing tank 5, a circulating pump 6, and an insulated water tank 7. The sealing tank 5 is located at the top of the diagonal support frame 1, and the sealing tank 5 has multiple pipe interfaces 50 along its length. One end of the vacuum tube 2 extends into the pipe interface 50, and the other end is connected to the bottom of the diagonal support frame 1. The outer wall of the vacuum tube 2 is coated with a light-transmitting coating, and the inner wall of the vacuum tube 2 is coated with... The container has a titanium nitride coating. The inlet pipe 31 and the outlet pipe 32 are respectively located inside the encapsulation tank 5. The U-shaped tube 4 is fitted into the inner wall of the vacuum tube 2. The U-shaped tube 4 has an inlet and an outlet. The inlet is connected to the inlet pipe 31, and the outlet is connected to the outlet pipe 32. The end of the outlet pipe 32 is connected to one end of the circulation pump 6 via a first pipe 61. The other end of the circulation pump 6 is connected to the insulated water tank 7 via a second pipe 62. The circulation pump 6 is used to pump the outlet water... Hot water in pipe 32 is pumped into the insulated water tank 7. During the heating process of cold water in the solar water heater, the cold water first enters the U-shaped pipe 4 through the inlet pipe 31. The U-shaped pipe 4 is fitted into the inner wall of the vacuum tube 2 to reduce the heat transfer path. Under sunlight conditions, solar radiation passes through the light-transmitting coating on the outer wall of the vacuum tube 2. This coating has good light transmittance, effectively increasing the transmittance of sunlight and allowing more light energy to enter the vacuum tube 2. The inner wall of the vacuum tube 2 is coated with a titanium nitride coating, which has high... The solar energy absorption rate can convert solar radiation entering the U-shaped tube 4 into heat energy and effectively reduce heat loss. After the closed space inside the vacuum tube 2 is heated, the heat is transferred to the water flow inside through the U-shaped tube 4 that is close to its inner wall, so that the water temperature gradually rises. The heated hot water enters the outlet pipe 32 from the outlet of the U-shaped tube 4, and is then pumped to the heat storage tank 7 by the action of the circulation pump 6. This setting can enhance the absorption and conduction efficiency of solar energy and solve the problems of low heating efficiency and long heat conduction path in the existing technology.

[0031] Furthermore, the light-transmitting coating is a magnesium fluoride coating with a thickness of 20-30 μm. In this embodiment, the magnesium fluoride coating has a thickness of 20 μm. The magnesium fluoride coating has a low refractive index and good optical transmittance, which can effectively reduce the reflection of sunlight on the outer wall surface of the vacuum tube 2 and improve the transmission efficiency of solar radiation. In this embodiment, the 20 μm thickness of the magnesium fluoride coating can ensure optical transmittance while having good adhesion and weather resistance, so as to stably cover the surface of the glass vacuum tube 2, thereby improving the heat collection efficiency and extending the service life of the magnesium fluoride coating.

[0032] Furthermore, the thickness of the titanium nitride coating is 40-100 μm. The titanium nitride coating can efficiently convert solar radiation into heat energy and reduce heat radiation loss. In this embodiment, the thickness of the titanium nitride coating is 60 μm. Thus, the titanium nitride coating not only has good photothermal conversion ability, but also has strong adhesion stability, preventing the coating from falling off.

[0033] Furthermore, the outer wall of the U-shaped tube 4 is coated with a graphene coating with a thickness of 20-60 μm. In this embodiment, the thickness of the graphene coating is 40 μm. The graphene layer has extremely high thermal conductivity, which can effectively enhance the heat transfer efficiency between the U-shaped tube 4 and the inner wall of the vacuum tube 2, thereby accelerating the heat conduction process between the heat collection layer and the water.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the pipe interface 50 is further provided with a sealing ring 51. The sealing ring 51 is used to seal the gap between the vacuum tube 2 and the pipe interface 50. The sealing ring 51 can form a tight fit when the vacuum tube 2 is inserted into the encapsulation tank 5 to prevent water vapor or impurities from entering the encapsulation tank 5. At the same time, it improves the connection reliability between the vacuum tube 2 and the pipe interface 50, extends the service life of the whole machine, and improves the assembly structure stability of the solar water heater.

[0035] Furthermore, the inner side of the encapsulation container 5 is provided with a heat insulation cotton layer (not shown). The heat insulation cotton layer has good heat insulation performance, which can effectively reduce the heat loss inside the encapsulation container 5, thereby reducing energy loss during the heat transfer process.

[0036] Furthermore, the inlet pipe 31, outlet pipe 32, and U-shaped pipe 4 are all copper pipes. Copper has good thermal conductivity, which can quickly transfer heat during the heating process and effectively reduce energy loss.

[0037] Furthermore, it also includes a patch-type temperature sensor (not shown), which is installed on the outlet pipe 32. The patch-type temperature sensor is used to detect the heating temperature of the water in the U-shaped pipe 4. The patch-type temperature sensor is electrically connected to the circulation pump 6 through a controller. When the patch-type temperature sensor detects that the water temperature has reached the preset heating threshold, it controls the circulation pump 6 to start, so as to transport the heated hot water to the heat preservation tank 7 for heat preservation, avoiding the problem of low water temperature or energy waste caused by premature water pumping, and effectively improving the utilization efficiency of thermal energy.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-efficiency solar water heater, characterized in that, Includes diagonal bracing, vacuum tubes, inlet pipes, outlet pipes, U-tubes, sealing tanks, circulating pumps, and insulated water tanks; The encapsulation container is located on the top of the inclined support frame. The encapsulation container has multiple pipe interfaces along its length. One end of the vacuum tube extends into the pipe interface, and the other end is connected to the bottom of the inclined support frame. The outer wall of the vacuum tube is coated with a light-transmitting coating, and the inner wall of the vacuum tube is coated with a titanium nitride coating. The inlet pipe and the outlet pipe are respectively located inside the packaging tank. The U-shaped tube is attached to the inner wall of the vacuum tube. The U-shaped tube has an inlet and an outlet. The inlet is connected to the inlet pipe, and the outlet is connected to the outlet pipe. The end of the outlet pipe is connected to one end of the circulation pump through a first pipe, and the other end of the circulation pump is connected to the insulated water tank through a second pipe. The circulation pump is used to pump the hot water in the outlet pipe into the insulated water tank.

2. The high-efficiency solar water heater according to claim 1, characterized in that, The light-transmitting coating is a magnesium fluoride coating, and the thickness of the magnesium fluoride coating is 20-30 μm.

3. The high-efficiency solar water heater according to claim 1, characterized in that, The thickness of the titanium nitride coating is 40-100 μm.

4. The high-efficiency solar water heater according to claim 1, characterized in that, The outer wall of the U-shaped tube is coated with a graphene coating, the thickness of which is 20-60 μm.

5. The high-efficiency solar water heater according to claim 1, characterized in that, The tube interface is provided with a sealing ring, which is used to seal the gap between the vacuum tube and the tube interface.

6. The high-efficiency solar water heater according to claim 1, characterized in that, The inner side of the packaging container is provided with a heat-insulating cotton layer.

7. The high-efficiency solar water heater according to claim 1, characterized in that, The inlet pipe, outlet pipe, and U-shaped pipe are all made of copper.

8. The high-efficiency solar water heater according to claim 1, characterized in that, It also includes a patch temperature sensor, which is installed on the water outlet pipe and is used to detect the heating temperature of the water in the U-shaped pipe.

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