A solar water heater water supply device and a solar water heater

Abstract

This invention relates to the field of solar water heater technology, specifically disclosing a solar water heater water replenishment device and a solar water heater. The solar water heater water replenishment device provided by this invention is used to replenish water into the main water tank of a solar water heater. The replenishment tank replenishes water into the main water tank through a replenishment pipe and a flow stabilizing component. To avoid the water entering the main water tank impacting the water already in the tank, the flow stabilizing component guides the water entering the main water tank, causing it to flow from top to bottom, thus acting as a buffer. Furthermore, the flow stabilizing component diverts the water entering the main water tank, expanding the mixing range with the water already in the main water tank and ensuring uniform mixing. This avoids thermal shock, reduces the risk of the vacuum tubes of the solar water heater bursting, and extends the service life of the solar water heater.

Description

Technical Field

[0001] This invention relates to the field of solar water heater technology, and more particularly to a solar water heater water supply device and a solar water heater. Background Technology

[0002] Currently, the conventional structure of vacuum tube solar water heaters uses a single pipe for both inlet and outlet water supply. However, sometimes, to meet regional installation requirements, the inlet and outlet pipes are separated, and a makeup water tank is added next to the solar water heater to replenish the main tank in real time. However, due to climate factors, such as in winter, the water temperature in the makeup water tank differs significantly from that in the main tank, especially in regions like Yunnan where solar radiation is high, resulting in lower temperatures in the makeup water tank and higher temperatures in the main tank. When water is added to the main tank, the water temperature in both the main tank and the vacuum tubes drops sharply, posing a risk of the vacuum tubes bursting.

[0003] Therefore, in order to extend the service life of solar water heaters and reduce the risk of vacuum tube rupture, it is urgent to provide a solar water heater water supply device to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a water supply device for solar water heaters, which reduces the risk of vacuum tube rupture in solar water heaters and extends the service life of solar water heaters.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A water supply device for a solar water heater is provided for supplying water to the main water tank of the solar water heater, comprising:

[0007] A water supply tank, with a water supply pipe connected to its outlet;

[0008] The flow stabilizing component has one end connected to the water supply pipe and the other end passing through the inlet of the main water tank and connected to the inside of the main water tank. The flow stabilizing component enables the water entering the flow stabilizing component to flow out from top to bottom and mixes the water flow with the water in the main water tank.

[0009] As a preferred technical solution of the above-mentioned solar water heater water supply device, the flow stabilizing component includes a flow stabilizing pipe, one end of which is connected to the water supply pipe, and the other end passes through the water inlet of the main water tank. The end of the flow stabilizing pipe is closed. The portion of the flow stabilizing pipe placed inside the main water tank is provided with several flow guiding holes. The flow stabilizing pipe is installed on the main water tank, and the flow guiding holes are arranged facing upwards.

[0010] As a preferred technical solution for the above-mentioned solar water heater water supply device, a plurality of the flow guide holes are arranged in at least one row along the axial direction of the flow stabilizing pipe, and the center line of the flow guide holes is set at an angle α with the vertical direction perpendicular to the flow stabilizing pipe.

[0011] As a preferred technical solution for the above-mentioned solar water heater water supply device, the angle α between the centerline of the flow guide hole and the vertical direction perpendicular to the flow stabilizing pipe is set to 5°-30°.

[0012] As a preferred technical solution of the above-mentioned solar water heater water supply device, a plurality of the flow guide holes are arranged in two rows along the axial direction of the flow stabilizing pipe, the two rows of flow guide holes are staggered, and the two rows of flow guide holes are inclined in opposite directions.

[0013] As a preferred technical solution for the above-mentioned solar water heater water supply device, the length of the flow stabilizing pipe placed inside the main water tank is greater than or equal to 20cm.

[0014] As a preferred technical solution for the above-mentioned solar water heater water supply device, an anti-rotation sleeve is provided on the outer side of the end of the flow stabilizing pipe connected to the water supply pipe, the flow stabilizing pipe is installed on the main water tank, and the anti-rotation sleeve is interference-fitted with the water inlet of the main water tank.

[0015] As a preferred technical solution for the above-mentioned solar water heater water supply device, the anti-rotation sleeve and the flow stabilizing pipe are an integral structure, and the surface of the anti-rotation sleeve is provided with at least a plurality of ribs protruding along the axial direction, and the plurality of ribs are spaced apart along the circumference of the anti-rotation sleeve.

[0016] As a preferred technical solution for the above-mentioned solar water heater water supply device, the flow stabilizing pipe is provided with a foolproof structure, which ensures that the flow guide hole faces upward when the flow stabilizing pipe is installed on the main water tank.

[0017] The purpose of this invention is to provide a solar water heater with a long service life and suitable for use in different environments.

[0018] To achieve this objective, the present invention adopts the following technical solution:

[0019] A solar water heater is provided, comprising the solar water heater water supply device described in any of the above claims.

[0020] The beneficial effects of this invention are:

[0021] The solar water heater water replenishment device provided by this invention is used to replenish water into the main water tank of the solar water heater. The water replenishment tank replenishes water into the main water tank through a water replenishment pipe and a flow stabilizing component. In order to avoid the water entering the main water tank from impacting the water in the main water tank, the flow stabilizing component guides the water entering the main water tank, allowing the water to flow from top to bottom, thus playing a buffering role. In addition, the flow stabilizing component diverts the water entering the main water tank, expands the mixing range with the water in the main water tank, and makes the water entering the main water tank mix evenly with the water in the main water tank, avoiding thermal shock, reducing the risk of vacuum tube rupture of the solar water heater, and extending the service life of the solar water heater.

[0022] The solar water heater provided by this invention includes the aforementioned solar water replenishment device, which is suitable for use in different environments. The vacuum tank is not easy to crack, thus extending the service life of the solar water heater. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a solar water heater provided in an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A magnified view of part AA;

[0025] Figure 3 This is a schematic diagram of the main water tank provided in an embodiment of the present invention;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the current stabilizing tube provided in an embodiment of the present invention;

[0027] Figure 5 This is a front view of the current stabilizing tube provided in an embodiment of the present invention;

[0028] Figure 6 yes Figure 5 Enlarged view of part BB;

[0029] Figure 7 yes Figure 5 A magnified view of the CC area.

[0030] In the picture:

[0031] 100. Main water tank; 101. Outer cylinder; 102. Inner cylinder; 200. Vacuum tube;

[0032] 1. Water supply tank; 2. Water supply pipe; 3. Flow stabilizing component; 4. Cover;

[0033] 31. Flow stabilizer; 311. First flange plate; 32. Flow guide hole; 33. Anti-rotation sleeve; 331. Rib; 332. Second flange plate; 34. Foolproof structure; 35. End cap. Detailed Implementation

[0034] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In existing technologies, water is replenished to the main tank of a solar water heater via a replenishment tank. Due to climatic reasons, such as in winter, the water temperature in the replenishment tank differs significantly from that in the main tank, especially in regions like Yunnan where solar radiation is high, resulting in a low temperature in the replenishment tank and a high temperature in the main tank. When water is replenished, the temperature in the main tank and the vacuum tubes of the solar water heater drops sharply, posing a risk of the vacuum tubes bursting. Therefore, to solve the above problems, extend the service life of the solar water heater, and reduce the risk of vacuum tube bursting, this embodiment provides a solar water heater replenishment device to address the aforementioned technical issues.

[0038] like Figure 1 and Figure 2As shown, specifically, the solar water heater includes a main water tank 100 and several vacuum tubes 200. Solar radiation passes through the outer tube of the vacuum tube 200, is absorbed by the heat-collecting coating, and is then transferred along the inner tube wall to the water inside the tube. The water inside the tube absorbs heat, its temperature rises, its density decreases, and it rises, creating an upward force. As the hot water continuously rises and is stored in the upper part of the main water tank 100, cooler water in the main water tank 100 continuously replenishes it along the other side of the vacuum tubes 200, and this cycle repeats until the water temperature in the entire main water tank 100 rises to a certain level. The solar water heater water replenishment device provided in this embodiment replenishes water into the main water tank of the solar water heater.

[0039] In this embodiment, the solar water heater water supply device includes a water supply tank 1 and a flow stabilizing component 3. The outlet of the water supply tank 1 is connected to a water supply pipe 2. One end of the flow stabilizing component 3 is connected to the water supply pipe 2, and the other end passes through the inlet of the main water tank 100 and is connected to the inside of the main water tank 100. The flow stabilizing component 3 enables the water entering the flow stabilizing component 3 to flow out from top to bottom, and mixes the water flow with the water in the main water tank 100.

[0040] The solar water heater water replenishment device provided in this embodiment is used to replenish water into the main water tank 100 of the solar water heater. The water replenishment tank 1 replenishes water into the main water tank 100 through the water replenishment pipe 2 and the flow stabilizing component 3. In order to avoid the water entering the main water tank 100 from impacting the water in the main water tank 100, the flow stabilizing component 3 plays a guiding role for the water entering the main water tank 100, so that the water flows out from top to bottom, which plays a buffering role. In addition, the flow stabilizing component 3 diverts the water entering the main water tank 100, expands the mixing range with the water in the main water tank 100, and makes the water entering the main water tank 100 mix evenly with the water in the main water tank 100, avoiding thermal shock, reducing the risk of the vacuum tube 200 of the solar water heater bursting, and extending the service life of the solar water heater.

[0041] Preferably, the water replenishment tank 1 is positioned above the water inlet of the main water tank 100 to facilitate automatic water replenishment into the main water tank 100 and to reduce operating costs.

[0042] In some other embodiments, a water pump can also be installed in the water supply pipe 2 or the water supply tank 1. The water pump is started at regular intervals to replenish water into the main water tank 100, or the water level in the main water tank 100 is detected. If the water level is lower than the set water level, the water pump is started to replenish water into the main water tank 100.

[0043] like Figure 2 , Figure 3 and Figure 4As shown, the flow stabilizing component 3 includes a flow stabilizing pipe 31, one end of which is connected to the water supply pipe 2. Specifically, the flow stabilizing pipe 31 is screwed to the water supply pipe 2. Preferably, the water supply pipe 2 is inserted into the flow stabilizing pipe 31, and the outer side wall of the water supply pipe 2 is provided with an external thread. The inner side wall of the flow stabilizing pipe 31 is provided with an internal thread that matches the external thread. The connection is convenient, and the threaded connection has a certain sealing effect, preventing water from leaking through the connection between the water supply pipe 2 and the flow stabilizing pipe 31.

[0044] More preferably, a sealing element is provided on the outer wall of the water supply pipe 2 or the inner wall of the flow stabilizing pipe 31 to further improve the sealing performance of the connection between the water supply pipe 2 and the flow stabilizing pipe 31.

[0045] In other embodiments, the water supply pipe 2 can be directly inserted into the flow stabilizing pipe 31. The two are interference-fitted, which can also effectively prevent water leakage at the connection between the water supply pipe 2 and the flow stabilizing pipe 31.

[0046] The other end of the flow stabilizer pipe 31 passes through the inlet of the main water tank 100, and the end of the flow stabilizer pipe 31 is closed to prevent water entering the flow stabilizer pipe 31 from flowing into the main water tank 100 through the end opening, causing an impact on the water in the main water tank 100 and making the added water mixed unevenly with the water in the main water tank 100.

[0047] Optionally, the end of the flow stabilizing tube 31 is sealed with an end cap 35. The end cap 35 can be connected to the flow stabilizing tube 31 by welding, thus achieving a sealed connection between the flow stabilizing tube 31 and the end cap 35. In other embodiments, the end cap 35 can also be a cylindrical structure, which is either sealed and sleeved on the end of the flow stabilizing tube 31 or sealed and inserted into the end of the flow stabilizing tube 31. This connection method is simple and easy to assemble.

[0048] The main water tank 100 includes an inner cylinder 102 and an outer cylinder 101. The inner cylinder 102 is disposed inside the outer cylinder 101 and is used to hold water. A first water inlet is provided on the outer cylinder 101, and a second water inlet is provided on the inner cylinder 102. A flow stabilizing pipe 31 passes through the first and second water inlets sequentially and is placed inside the inner cylinder 102. To prevent water in the main water tank 100 from leaking through the second water inlet, in this embodiment, a sealing element is provided between the flow stabilizing pipe 31 and the second water inlet. The sealing element is sleeved on the flow stabilizing pipe 31, and the second water inlet passes through the flow stabilizing pipe 31. The sealing element and the second water inlet are press-fitted to achieve a sealing effect. Optionally, the sealing element can be a rubber component, which is not specifically limited here.

[0049] To improve the overall aesthetics of the solar water heater, a cover 4 is provided at the connection between the flow stabilizer pipe 31 and the outer cylinder 101. The cover 4 is fitted onto the flow stabilizer pipe 31 and fastened to the outside of the outer cylinder 101 to cover the first water inlet.

[0050] The portion of the flow stabilizer pipe 31 placed inside the main water tank 100 has several guide holes 32, enabling communication between the flow stabilizer pipe 31 and the interior of the main water tank 100 to replenish water into the main water tank 100. The guide holes 32 are positioned upwards on the flow stabilizer pipe 31, allowing water entering the flow stabilizer pipe 31 to flow downwards into the main water tank 100. This increases the water flow height, reduces the impact on the water in the main water tank 100, and acts as a buffer. The multiple guide holes 32 divert the water in the flow stabilizer pipe 31, expanding the mixing range with the water in the main water tank 100 and ensuring uniform mixing. This avoids thermal shock and reduces the risk of the vacuum tubes 200 of the solar water heater bursting. Furthermore, machining holes in the flow stabilizer pipe 31 is a simple and low-cost process.

[0051] In this embodiment, a plurality of guide holes 32 are arranged in at least one row along the axial direction of the flow stabilizing pipe 31, and the center line of the guide holes 32 is set at an angle α with the vertical direction perpendicular to the flow stabilizing pipe 31, so that the water flows out at an angle, which can not only ensure that the water can flow out smoothly, but also reduce the flow rate of the water to achieve the purpose of buffering.

[0052] Preferably, a number of guide holes 32 are arranged in two rows along the axial direction of the flow stabilizing pipe 31. The two rows of guide holes 32 are staggered and inclined in opposite directions. That is, water flows to both sides through the two rows of guide holes 32, forming multiple water columns that spread out, expanding the range of water mixing and further reducing the cold impact on the water in the main water tank 100.

[0053] In other embodiments, the plurality of guide holes 32 can be arranged in multiple rows to ensure that the water flows out from top to bottom, thereby reducing the water flow velocity.

[0054] Provided that the amount of water injected per unit time is guaranteed, the number and diameter of the guide holes 32 are not specifically limited here. If the number of guide holes 32 is small, the diameter of the guide holes 32 can be slightly larger, and the density of the guide holes 32 can be low, which is also convenient for processing. If the number of guide holes 32 is large, in order to facilitate the arrangement of the guide holes 32, the diameter of the guide holes 32 can be slightly smaller, as long as the overall flow rate of injected water is guaranteed.

[0055] In this embodiment, as Figure 5 , Figure 6 and Figure 7As shown, the centerline of the aforementioned guide hole 32 is set at an angle α to the vertical direction perpendicular to the flow stabilizer pipe 31. Specifically, the angle α between the centerline of the guide hole 32 and the vertical direction perpendicular to the flow stabilizer pipe 31 is set to 5°-30°, so that the water in the flow stabilizer pipe 31 spreads out as a water column and does not directly impact the water in the main water tank 100, allowing for thorough mixing with the surrounding water. Preferably, the angle α between the centerline of the guide hole 32 and the vertical direction perpendicular to the flow stabilizer pipe 31 is set to 5°, 10°, 15°, 20°, 25°, or 30°.

[0056] The flow stabilizing pipe 31 is partially placed inside the main water tank 100 to replenish water to the main water tank 100. Optionally, the length of the flow stabilizing pipe 31 placed inside the main water tank 100 is greater than or equal to 20cm, which ensures the flow rate of water replenishment per unit time while reducing costs.

[0057] The portion of the flow stabilizer pipe 31 placed inside the main water tank 100 has guide holes 32. The longer this portion of the flow stabilizer pipe 31 is within the main water tank 100, the better, as this increases the number of guide holes 32 and the water injection volume per unit time, thereby improving water injection efficiency and increasing the mixing range with the water in the main water tank 100. However, considering cost, the flow stabilizer pipe 31 should not be too long; it should only be long enough to ensure the water injection volume per unit time meets the usage requirements. Furthermore, the size of the main water tank 100 varies depending on the model of the solar water heater, and the length of the flow stabilizer pipe 31 should be determined in conjunction with the size of the main water tank 100.

[0058] When the flow stabilizer pipe 31 is inserted into the inlet of the main water tank 100, the connection process between the water supply pipe 2 and the flow stabilizer pipe 31 may cause the flow stabilizer pipe 31 to rotate circumferentially. This rotation may change the position of the guide hole 32, potentially preventing it from effectively buffering the water flow. Therefore, to solve this problem, please refer to... Figure 4 and Figure 5 As shown, in this embodiment, an anti-rotation sleeve 33 is provided on the outer side of the end where the flow stabilizer pipe 31 is connected to the water supply pipe 2. When the flow stabilizer pipe 31 is installed on the main water tank 100, the anti-rotation sleeve 33 is interference-fitted with the water inlet of the main water tank 100, which effectively prevents the flow stabilizer pipe 31 from circumferentially displacing when the water supply pipe 2 and the flow stabilizer pipe 31 are connected.

[0059] Furthermore, since the outer cylinder 101 of the main water tank 100 is provided with a first water inlet and the inner cylinder 102 of the main water tank 100 is provided with a second water inlet, the anti-rotation sleeve 33 is interference-fitted with the first water inlet (see...). Figure 2 (As shown).

[0060] Optionally, the anti-rotation sleeve 33 and the flow stabilizing pipe 31 are integrally formed to prevent relative rotation between the anti-rotation sleeve 33 and the flow stabilizing pipe 31. The surface of the anti-rotation sleeve 33 is provided with at least a plurality of ribs 331 protruding along the axial direction, and the plurality of ribs 331 are spaced apart along the circumference of the anti-rotation sleeve 33 to further improve the stability of the interference fit between the flow stabilizing pipe 31 and the water inlet. The ribs 331 and the anti-rotation sleeve 33 are integrally formed, which facilitates processing.

[0061] The anti-rotation sleeve 33 is injection molded onto the flow stabilizing tube 31, which is simple to process and provides good connection stability. In other embodiments, the anti-rotation sleeve 33 can be sleeved onto the flow stabilizing tube 31 and fixed to the flow stabilizing tube 31 by adhesive bonding.

[0062] To improve the stability of the connection between the anti-rotation sleeve 33 and the flow stabilizing pipe 31, a first flange plate 311 is provided on the end face of the flow stabilizing pipe 31 in the circumferential direction, and a second flange plate 332 is provided on the end of the anti-rotation sleeve 33 in the circumferential direction. The second flange plate 332 is fitted to the first flange plate 311, thereby increasing the connection area between the anti-rotation sleeve 33 and the flow stabilizing pipe 31.

[0063] The aforementioned flow stabilizer 31 is made of stainless steel, which is corrosion-resistant and has low operating costs. The anti-rotation sleeve 33 is made of plastic, has a certain degree of elasticity, and is easy to install at the water outlet. Optionally, the anti-rotation sleeve 33 is made of thermoplastic engineering plastic.

[0064] In this embodiment, the flow stabilizer pipe 31 is provided with a foolproof structure 34. When the flow stabilizer pipe 31 is installed on the main water tank 100, the foolproof structure 34 ensures that the guide hole 32 faces upward. The foolproof structure 34 on the flow stabilizer pipe 31 helps the installer to identify whether the guide hole 32 is facing upward, thus ensuring the effectiveness of the flow stabilizer pipe 31.

[0065] Specifically, the foolproof structure 34 includes a groove located at the end where the flow stabilizing pipe 31 connects to the water supply pipe 2, facilitating inspection by the installer. For example, taking a configuration with two rows of guide holes 32, the groove is positioned in the middle between the two rows of guide holes 32, allowing the installer to accurately locate the position of the guide holes 32. Of course, the foolproof structure 34 can be configured according to the arrangement of the guide holes 32 to facilitate accurate identification by the installer; no specific limitation is made here.

[0066] Taking this embodiment as an example, the groove is preferably provided on the anti-rotation sleeve 33, and the groove can be directly machined during the integral injection molding of the sleeve and the flow stabilizer 31. Furthermore, the groove is provided on the second flange plate 332 of the anti-rotation sleeve 33.

[0067] The solar water heater using the water replenishment device provided in this embodiment effectively avoids the water entering the main water tank 100 from impacting the water in the main water tank 100, reduces the risk of the vacuum tube of the solar water heater bursting, and extends the service life of the solar water heater.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A water replenishment device for a solar water heater, used to replenish water to the main water tank (100) of a solar water heater, characterized in that, include: A water supply tank (1) is provided with a water supply pipe (2) connected to its outlet. The flow stabilizing component (3) has one end connected to the water supply pipe (2) and the other end connected to the inside of the main water tank (100) through the water inlet. The flow stabilizing component (3) enables the water entering the flow stabilizing component (3) to flow out from top to bottom and mixes the water flow with the water in the main water tank (100). The flow stabilizing component (3) includes a flow stabilizing pipe (31), one end of which is connected to the water supply pipe (2), and the other end passes through the water inlet of the main water tank (100). The end of the flow stabilizing pipe (31) is closed. The portion of the flow stabilizing pipe (31) placed inside the main water tank (100) is provided with several guide holes (32). The flow stabilizing pipe (31) is installed on the main water tank (100), and the guide holes (32) are arranged facing upwards.

2. The solar water heater water supply device according to claim 1, characterized in that, A plurality of the flow guide holes (32) are arranged in at least one row along the axial direction of the flow stabilizer (31), and the center line of the flow guide holes (32) is set at an angle α with the vertical direction perpendicular to the flow stabilizer (31).

3. The solar water heater water supply device according to claim 2, characterized in that, The angle α between the centerline of the flow guide hole (32) and the vertical direction perpendicular to the flow stabilizer (31) is set to 5°-30°.

4. The solar water heater water supply device according to claim 2, characterized in that, Several of the flow guide holes (32) are arranged in two rows along the axial direction of the flow stabilizer (31), the two rows of flow guide holes (32) are staggered, and the two rows of flow guide holes (32) are inclined in opposite directions.

5. The solar water heater water supply device according to claim 1, characterized in that, The length of the flow stabilizing pipe (31) placed inside the main water tank (100) is greater than or equal to 20cm.

6. The solar water heater water supply device according to claim 1, characterized in that, An anti-rotation sleeve (33) is fitted on the outer side of one end of the flow stabilizing pipe (31) connected to the water supply pipe (2). The flow stabilizing pipe (31) is installed on the main water tank (100). The anti-rotation sleeve (33) is interference-fitted with the water inlet of the main water tank (100).

7. The solar water heater water supply device according to claim 6, characterized in that, The anti-rotation sleeve (33) and the flow stabilizing pipe (31) are an integral structure. The surface of the anti-rotation sleeve (33) is provided with at least a plurality of ribs (331) protruding along the axial direction. The plurality of ribs (331) are arranged at intervals along the circumference of the anti-rotation sleeve (33).

8. The solar water heater water supply device according to claim 1, characterized in that, The flow stabilizing pipe (31) is provided with a foolproof structure (34). When the flow stabilizing pipe (31) is installed on the main water tank (100), the flow guide hole (32) is set to face upward by means of the foolproof structure (34).

9. A solar water heater, characterized in that, Includes the solar water heater water supply device as described in any one of claims 1-8.

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