WO2023207546A1

WO2023207546A1 - Water replenishing device of solar water heater and solar water heater

Info

Publication number: WO2023207546A1
Application number: PCT/CN2023/086759
Authority: WO
Inventors: 王思华; 李文静; 王森
Original assignee: 青岛海尔智慧电器设备有限公司; 青岛经济技术开发区海尔热水器有限公司; 海尔智家股份有限公司
Priority date: 2022-04-29
Filing date: 2023-04-07
Publication date: 2023-11-02

Abstract

The present application discloses a water replenishing device of a solar water heater and a solar water heater. The water replenishing device of the solar water heater provided by the present application comprises: a water replenishing tank, a water replenishing pipe being connected to a water outlet of the water replenishing tank; and a flow stabilization assembly, a first end of the flow stabilization assembly being communicated with the water replenishing pipe, a second end of the flow stabilization assembly passing through a water inlet of a main water tank to be communicated with the interior of the main water tank, and the flow stabilization assembly being configured to enable water entering the flow stabilization assembly to flow out from top to bottom, divide the water, and mix the divided water with the water in the main water tank.

Description

Solar water heater water replenishment device and solar water heater

This application claims priority to the Chinese patent applications with application numbers 202210472454.3 and 202221030043.0 submitted to the China Patent Office on April 29, 2022. The entire contents of the above applications are incorporated into this application by reference.

Technical field

The present application relates to the technical field of solar water heaters, for example, to a solar water heater water replenishing device and a solar water heater.

Background technique

The conventional structure of the vacuum tube solar water heater uses a single pipe to realize water supply and drainage. However, sometimes in order to meet the regional installation conditions of the solar water heater, the water inlet pipe and the water outlet pipe of the solar water heater are set separately, and a water replenishing tank is added next to the solar water heater to achieve real-time water supply. Replenish water in the main water tank of the solar water heater. However, due to climate reasons, such as in winter, the water temperature in the replenishing tank is very different from the water temperature in the main water tank of the solar water heater. For example, in areas such as Yunnan, where solar radiation is high, the temperature in the replenishing tank is low and the temperature in the main water tank is high. , when replenishing water into the main water tank, when the water in the replenishing tank enters the main water tank, the water temperature in the main water tank and the vacuum tube of the solar water heater will drop suddenly, which may cause the vacuum tube of the solar water heater to burst.

Contents of the invention

This application provides a solar water heater water replenishing device, which reduces the risk of the solar water heater vacuum tube bursting and extends the service life of the solar water heater.

This application provides a solar water heater water replenishing device, which is configured to replenish water in the main water tank of the solar water heater, including:

A water supply tank, the water outlet of the water supply tank is connected with a water supply pipe;

A flow stabilizing component, the first end of the flow stabilizing component is connected to the water supply pipe, the second end of the flow stabilizing component passes through the water inlet of the main water tank and is connected to the inside of the main water tank, and the flow stabilizing component is configured to allow The water entering the flow stabilizing component flows out from top to bottom, and the water is divided and mixed with the water in the main water tank.

This application provides a solar water heater, including the solar water heater water replenishing device described in any one of the above.

Description of drawings

Figure 1 is a schematic structural diagram of a solar water heater provided by an embodiment of the present application;

Figure 2 is a partially enlarged schematic view of A-A in Figure 1;

Figure 3 is a schematic structural diagram of the main water tank provided by the embodiment of the present application;

Figure 4 is a schematic three-dimensional structural diagram of the flow stabilizing tube provided by the embodiment of the present application;

Figure 5 is a front view of the flow stabilizing tube provided by the embodiment of the present application;

Figure 6 is a partially enlarged schematic diagram of B-B in Figure 5;

FIG. 7 is a partially enlarged schematic diagram of C-C in FIG. 5 .

In the picture:
100. Main water tank; 101. Outer cylinder; 102. Inner cylinder; 200. Vacuum tube;
1. Water supply tank; 2. Water supply pipe; 3. Stable flow component; 4. Cover;
31. Stable flow tube; 311. First flange plate; 32. Diversion hole; 33. Anti-rotation sleeve; 331. Ribs;
332. Second flange plate; 34. Fool-proof structure; 35. End cover.

Detailed ways

The technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings.

In the description of this application, unless otherwise explicitly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body. ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood depending on the specific circumstances.

In this application, unless otherwise expressly provided and limited, the term "above" or "below" a first feature to a second feature may include the first feature being in direct contact with the second feature, or it may also include the first feature being in direct contact with the second feature. Two features are not in direct contact but are in contact through another feature between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

In related technologies, water is replenished into the main water tank of the solar water heater through a replenishing tank. Due to climate reasons, such as in winter, the water temperature in the replenishing tank is very different from the water temperature in the main water tank of the solar water heater. For example, in areas such as Yunnan, solar radiation High, the temperature in the replenishing tank is low and the temperature in the main water tank is high. When replenishing water into the main water tank, when the water in the replenishing tank enters the main water tank, the main water tank and solar hot water will be affected. The water temperature in the vacuum tube of the solar water heater drops suddenly, which may cause the vacuum tube of the solar water heater to burst. Therefore, in order to extend the service life of the solar water heater and reduce the risk of the vacuum tube bursting, this embodiment provides a water replenishing device for the solar water heater.

As shown in Figures 1 and 2, the solar water heater includes a main water tank 100 and a plurality of 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 to the water in the tube along the inner tube wall of the vacuum tube 200. The temperature of the water in the tube increases after absorbing heat, and the specific gravity decreases and rises, forming an upward force. As the hot water continues to rise and is stored in the upper part of the main water tank 100, the lower temperature water in the main water tank 100 moves along the vacuum tube 200 The other side of the main water tank 100 is continuously replenished and the cycle continues, and finally the water temperature in the entire main water tank 100 rises to a certain temperature. The solar water heater water replenishing device provided in this embodiment replenishes water in the main water tank 100 of the solar water heater.

In this embodiment, the solar water heater water supply device includes a water supply tank 1 and a flow stabilizing component 3. The water outlet of the water supply tank 1 is connected to a water supply pipe 2. The first end of the flow stabilizing component 3 is connected to the water supply pipe 2, and the second end of the flow stabilizing component 3 is connected to the water supply pipe 2. Assuming that the water inlet of the main water tank 100 is connected to the inside of the main water tank 100, the flow stabilizing component 3 can make the water entering the flow stabilizing component 3 flow out from top to bottom, and split the water and mix the split water with the water in the main water tank 100. Mix with water.

The solar water heater water replenishment device provided in this embodiment is configured 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 assembly 3. In order to avoid the water entering the main water tank 100 from contaminating the The water in the main water tank 100 causes impact, and the flow stabilizing component 3 plays a diversion role in the water entering the main water tank 100, causing the water to flow out from top to bottom, playing a buffering role, and the flow stabilizing component 3 will enter the main water tank 100. The water in the water tank 100 is divided, which expands the mixing range with the water in the main water tank 100, and makes the water entering the main water tank 100 evenly mixed with the water in the main water tank 100, avoiding hot and cold shocks, and reducing the energy consumption of the solar water heater. The risk of the vacuum tube 200 bursting extends the service life of the solar water heater.

Optionally, the water replenishing tank 1 is set higher than the water inlet of the main water tank 100 to facilitate automatic replenishing of water into the main water tank 100 and to reduce the cost of use.

In some other embodiments, a water pump can also be provided in the water replenishment pipe 2 or the water replenishment tank 1. The water pump can be started regularly to replenish water in the main water tank 100, or detect the water level in the main water tank 100. If the water level in the main water tank 100 is lower than When the water level is set, the water pump is started to replenish water in the main water tank 100 .

As shown in FIGS. 2 , 3 and 4 , the flow stabilizing assembly 3 includes a flow stabilizing pipe 31 , and the first end of the flow stabilizing pipe 31 is connected with the water supply pipe 2 . The flow stabilizing pipe 31 is screwed to the water supply pipe 2 . Optionally, 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 external threads, and the inner side wall of the flow stabilizing pipe 31 is provided with internal threads that match the external threads, making the connection easy, and The threaded connection has a certain sealing effect to prevent water from leaking through the connection between the water supply pipe 2 and the flow stabilizing pipe 31.

Optionally, a seal is provided on the outer wall of the water supply pipe 2 or the inner wall of the flow stabilizing pipe 31 to achieve The sealing performance of the connection between the water supply pipe 2 and the flow stabilizing pipe 31 is further improved.

In other embodiments, the water supply pipe 2 can be directly inserted into the flow stabilizing pipe 31. The interference fit between the water supply pipe 2 and the flow stabilizing pipe 31 can also effectively prevent water from being trapped at the connection between the water supply pipe 2 and the flow stabilizing pipe 31. Give way.

The second end of the flow stabilizing pipe 31 passes through the water inlet of the main water tank 100, and the second end of the flow stabilizing pipe 31 is closed to prevent water entering the flow stabilizing pipe 31 from flowing into the main water tank 100 through the end opening of the second end. , causing an impact on the water in the main water tank 100 , causing the added water to mix unevenly with the water in the main water tank 100 .

Optionally, an end cap 35 is sealingly connected to the second end of the flow stabilizing tube 31 . The end cap 35 can be connected to the flow stabilizing tube 31 by welding, thereby 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, and the end cap 35 is hermetically sleeved on the end of the second end of the flow stabilizing tube 31 or is sealingly inserted into the end of the second end of the flow stabilizing tube 31 . The connection method is simple and easy to assemble.

The main water tank 100 includes an inner cylinder 102 and an outer cylinder 101. The inner cylinder 102 is arranged in the outer cylinder 101. The inner cylinder 102 is used to hold water. The outer cylinder 101 is provided with a first water inlet, and the inner cylinder 102 is provided with a second water inlet. The flow-stabilizing pipe 31 passes through the first water inlet and the second water inlet in sequence and is placed in the inner cylinder 102. In order to prevent the water in the main water tank 100 from leaking through the second water inlet, in this embodiment, the flow-stabilizing pipe 31 and the second water inlet are connected. There is a sealing member between the two water inlets. The sealing member is sleeved on the flow stabilizing tube 31. The flow stabilizing tube 31 passes through the second water inlet. The sealing member has an interference fit with the second water inlet to achieve a sealing effect. Optionally, the sealing member may be a rubber member, which is not specifically limited here.

In order to improve the overall aesthetics of the solar water heater, a cover 4 is provided at the connection between the flow stabilizing tube 31 and the outer cylinder 101. The cover 4 is set on the flow stabilizing tube 31 and is buckled to the outside of the outer cylinder 101. Block the first water inlet.

The portion of the flow-stabilizing pipe 31 placed in the main water tank 100 is provided with a plurality of guide holes 32 to realize communication between the flow-stabilizing pipe 31 and the interior of the main water tank 100 so as to replenish water into the main water tank 100 . When the flow stabilizing pipe 31 is installed on the main water tank 100, the guide hole 32 is set upward, so that the water entering the flow stabilizing pipe 31 flows into the main water tank 100 from top to bottom, which increases the height of the water flow and reduces the impact on the main water tank. The impact of water within 100 meters plays a buffering role. A plurality of guide holes 32 are provided to divert the water in the flow stabilizing pipe 31, thereby expanding the mixing range with the water in the main water tank 100, and allowing the water entering the main water tank 100 to mix evenly with the water in the main water tank 100 , avoid hot and cold shock, and reduce the risk of explosion of the vacuum tube 200 of the solar water heater. Moreover, the processing of holes on the flow-stabilizing tube 31 is simple and the processing cost is low.

In this embodiment, a plurality of guide holes 32 are arranged in at least one row along the axial direction of the flow stabilizing tube 31, and the center line of the guide holes 32 is arranged at an angle a with the vertical direction perpendicular to the flow stabilizing tube 31. Making the water flow out at an angle 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.

Optionally, a plurality of guide holes 32 are arranged in two rows along the axial direction of the flow stabilizing tube 31 , the two rows of guide holes 32 are staggered, and the two rows of guide holes 32 are inclined in opposite directions, that is, water passes through the two rows. Row diversion hole 32 direction The two sides are diverted to form multiple water columns that spread out, which expands the range of water mixing and further reduces the cold impact on the water in the main water tank 100 .

In other embodiments, multiple guide holes 32 can be arranged in multiple rows to ensure that the water flows out from top to bottom, and the flow rate of the water can be reduced.

On the premise of ensuring the amount of water injected per unit time, the number of guide holes 32 and the diameter of the guide holes 32 are not specifically limited here. If the number of guide holes 32 is small, the hole diameter of the guide holes 32 can be slightly larger, and the density of the guide holes 32 is small, which is also easy to process. If there are a large number of guide holes 32, in order to facilitate the arrangement of the guide holes 32, the diameter of the guide holes 32 can be slightly smaller, so as to ensure the flow rate of the injected water as a whole.

In this embodiment, as shown in FIGS. 5 , 6 and 7 , the center line of the above-mentioned flow guide hole 32 is arranged at an angle a with the vertical direction perpendicular to the flow stabilizing tube 31 . For example, the angle a between the center line of the flow guide hole 32 and the vertical direction perpendicular to the flow stabilizing tube 31 is in the range of 5°-30°, so that the water in the flow stabilizing tube 31 spreads out in the form of a water column, and It will not directly impact the water in the main water tank 100 and will be fully mixed with the surrounding water. Optionally, the angle a between the center line of the flow guide hole 32 and the vertical direction perpendicular to the flow stabilizing tube 31 is set to 5°, 10°, 15°, 20°, 25° or 30°.

The flow-stabilizing pipe 31 is partially placed in the main water tank 100 to replenish water into the main water tank 100. Optionally, the length of the flow-stabilizing pipe 31 placed in the main water tank 100 is greater than or equal to 20cm to ensure that the flow rate per unit time of water replenishment is reduced while reducing the flow rate. cost.

The part of the flow stabilizing pipe 31 placed in the main water tank 100 is provided with a flow guide hole 32. The longer the part of the flow stabilizing pipe 31 placed in the main water tank 100, the better. In this way, the number of flow guide holes 32 will also increase, and the flow rate will be increased per unit time. The water injection volume will also increase, thereby improving the water injection efficiency, and the mixing range with the water in the main water tank 100 will also increase accordingly. However, considering the cost issue, it is not easy to set the flow-stabilizing pipe 31 too long, as long as it can ensure that the water injection amount per unit time meets the usage demand. In addition, the main water tank 100 of different models of solar water heaters has different sizes, and the length of the flow stabilizing pipe 31 is set based on the size of the main water tank 100 .

When the flow stabilizing pipe 31 is plugged into the water inlet of the main water tank 100, the connection process between the water supply pipe 2 and the flow stabilizing pipe 31 may cause the flow stabilizing pipe 31 to rotate circumferentially, and the circumferential rotation of the flow stabilizing pipe 31 will cause If the position of the guide hole 32 changes, it may not be able to buffer the water flow. Therefore, in order to solve the above problem, as shown in Figures 4 and 5, in this embodiment, an anti-rotation sleeve 33 is set on the outside of the first end where the flow stabilizing pipe 31 is connected to the water supply pipe 2, and an anti-rotation sleeve 33 is installed on the flow stabilizing pipe 31. On the main water tank 100, the anti-rotation sleeve 33 has an interference fit with the water inlet of the main water tank 100, effectively preventing circumferential displacement of the flow-stabilizing pipe 31 when the water supply pipe 2 and the flow-stabilizing pipe 31 are connected.

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 has an interference fit with the first water inlet (see Figure 2).

Optionally, the anti-rotation sleeve 33 and the flow-stabilizing tube 31 have an integrated structure to prevent relative rotation between the anti-rotation sleeve 33 and the flow-stabilizing tube 31 . The surface of the anti-rotation sleeve 33 is provided with a plurality of ribs 331 protruding at least along the axial direction, and the plurality of ribs 331 are spaced along the circumference of the anti-rotation sleeve 33 to further increase the interference between the flow-stabilizing tube 31 and the first water inlet. The fit is stable, and the ribs 331 and the anti-rotation sleeve 33 are integrally formed to facilitate processing.

The anti-rotation sleeve 33 is formed on the flow stabilizing tube 31 by injection molding. The processing technology is simple, and the connection between the anti-rotation sleeve 33 and the flow stabilizing tube 31 has good stability. In other embodiments, the anti-rotation sleeve 33 can be sleeved on the flow-stabilizing tube 31 , and the anti-rotation sleeve 33 can be fixed on the flow-stabilizing tube 31 by adhesion.

In order to improve the stability of the connection between the anti-rotation sleeve 33 and the flow stabilizing tube 31 , the end surface of the first end of the flow stabilizing tube 31 is provided with a first flange plate 311 protruding outward along the circumferential direction, and the end of the anti-rotation sleeve 33 is provided with a first flange plate 311 along the circumferential direction. There is a second flange plate 332 , which is arranged in close contact with the first flange plate 311 , thereby increasing the connection area between the anti-rotation sleeve 33 and the flow-stabilizing tube 31 .

The above-mentioned flow stabilizing tube 31 is made of stainless steel, which is corrosion-resistant and has low use cost. The anti-rotation sleeve 33 is made of plastic and has certain elasticity, making it easy to install at the water inlet. Optionally, the anti-rotation sleeve 33 is made of thermoplastic engineering plastic.

In this embodiment, the flow stabilizing pipe 31 is provided with a fool-proof structure 34. When the flow-stabilizing pipe 31 is installed on the main water tank 100, the fool-proof structure 34 is used to set the guide hole 32 upward. A fool-proof structure 34 is provided on the flow stabilizing pipe 31 to assist the installer in identifying whether the flow guide hole 32 is set upward to ensure the effectiveness of the flow stabilizing pipe 31 .

Optionally, the fool-proof structure 34 includes a groove, which is provided at the first end of the connection between the flow stabilizing pipe 31 and the water supply pipe 2 to facilitate the installation personnel's inspection. For example, taking two rows of guide holes 32 as an example, the groove is provided at the middle position between the two rows of guide holes 32 so that the installer can accurately locate the position of the guide holes 32 . The anti-fool structure 34 is provided according to the arrangement of the guide holes 32 to facilitate accurate identification by the installer, and is not specifically limited here.

Taking this embodiment as an example, the groove is provided on the anti-rotation sleeve 33, and the groove can be directly processed when the anti-rotation sleeve 33 and the flow stabilizing tube 31 are integrally injection molded. Optionally, the groove is provided on the second flange plate 332 of the anti-rotation sleeve 33 .

The solar water heater using the water replenishing device provided in this embodiment effectively avoids the impact of water entering the main water tank 100 on 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.

Claims

A solar water heater water replenishing device is configured to replenish water into the main water tank (100) of the solar water heater, including:

Water supply tank (1), the water outlet of the water supply tank (1) is connected with a water supply pipe (2);

The flow stabilizing component (3) has a first end connected to the water supply pipe (2), and a second end of the flow stabilizing component (3) passes through the water inlet of the main water tank (100) and The main water tank (100) is internally connected, and the flow stabilizing component (3) is configured to make the water entering the flow stabilizing component (3) flow out from top to bottom, split the water, and separate the split water from the main water tank (100). The water in the main water tank (100) is mixed.
The solar water heater water replenishing device according to claim 1, wherein the flow stabilizing assembly (3) includes a flow stabilizing pipe (31), and the first end of the flow stabilizing pipe (31) is connected to the water replenishing pipe (2). connected, the second end of the flow stabilizing tube (31) passes through the water inlet of the main water tank (100), and the end of the second end of the flow stabilizing tube (31) is closed, and the flow stabilizing tube (31) 31) The part placed inside the main water tank (100) is provided with a plurality of guide holes (32). When the flow stabilizing pipe (31) is installed on the main water tank (100), the A plurality of guide holes (32) are arranged upward.
The solar water heater water replenishing device according to claim 2, wherein the plurality of guide holes (32) are arranged in at least one row along the axial direction of the steady flow tube (31), and each guide hole (32) The center line of is arranged at an angle a with the vertical direction perpendicular to the flow stabilizing tube (31).
The solar water heater water replenishing device according to claim 3, wherein the angle a between the center line of each guide hole (32) and the vertical direction perpendicular to the steady flow tube (31) is between 5° and 30°. within the range.
The solar water heater water replenishing device according to claim 3, wherein the plurality of guide holes (32) are arranged in two rows along the axial direction of the flow stabilizing pipe (31), and the two rows of guide holes (32) ) are staggered, and the two rows of guide holes (32) are inclined in opposite directions.
The solar water heater water replenishing device according to claim 2, wherein the length of the flow stabilizing pipe (31) placed in the main water tank (100) is greater than or equal to 20 cm.
The solar water heater water replenishing device according to claim 2, wherein an anti-rotation sleeve (33) is set on the outer side of the first end where the flow stabilizing pipe (31) is connected to the water replenishing pipe (2), and the When the flow stabilizing pipe (31) is installed on the main water tank (100), the anti-rotation sleeve (33) has an interference fit with the water inlet of the main water tank (100).
The solar water heater water replenishing device according to claim 7, wherein the anti-rotation sleeve (33) and the flow stabilizing tube (31) are an integral structure, and the surface of the anti-rotation sleeve (33) is convex at least along the axial direction. A plurality of ribs (331) are provided, and the plurality of ribs (331) are arranged at intervals along the circumferential direction of the anti-rotation sleeve (33).
The solar water heater water replenishing device according to claim 2, wherein the flow stabilizing pipe (31) is provided with a fool-proof structure (34), and the flow stabilizing pipe (31) is installed in the main water tank (100). ) on time, The plurality of guide holes (32) are arranged upward through the anti-fool structure (34).
A solar water heater, including the solar water heater water replenishing device according to any one of claims 1-9.