Hot tank and water supply device

Abstract

The utility model discloses a heat tank and a water supply device, the heat tank comprises a heat tank body, the heat tank body is internally provided with a liquid storage cavity, and the liquid storage cavity is used for storing a heat exchange medium; the heating piece is arranged in the liquid storage cavity and is close to the bottom of the heat tank body, the heating piece is used for heating the heat exchange medium in the heat tank body, the heated heat exchange medium rises in the heat tank body in a natural convection mode, continuous circulation heating and utilization of the heat exchange medium are achieved, the utilization efficiency of heat energy is improved, and the heat exchange efficiency is improved. The requirement for heat energy supply is met, and the operation efficiency of the whole system is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hot water tank technology, specifically relating to a hot water tank and a water supply device. Background Technology

[0002] In daily life, heated storage tanks serve as important storage devices. However, they also present several problems, such as the placement of the heaters. In current technology, heaters are often installed at the top of the tank, a layout with significant drawbacks. Specifically, if cold water returning from the bottom of the tank has to meander through the tank before reaching the heater, it cannot be heated in time during this journey, significantly reducing overall heating efficiency. Furthermore, because the heater is located at a higher position, the heated water undergoes significant heat exchange with the tank walls and the cooler water above during its ascent, undoubtedly exacerbating heat loss. This heat loss not only reduces heat utilization efficiency but also often leads to extremely uneven water temperature distribution within the tank, with some areas overheated and others undercooled. This phenomenon severely affects the working effect and performance stability of the heated storage tank, often failing to meet practical needs.

[0003] Therefore, there is a need to provide a hot water tank and a water supply device to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of this, this application provides a hot tank to improve the heating efficiency of the hot tank; the second objective is to provide a water supply device. To achieve one or more or all of the above objectives or other objectives, on the one hand, this application provides a hot tank, including a hot tank body, wherein the hot tank body has a liquid storage chamber for storing a heat exchange medium;

[0005] A heating element is disposed in the liquid storage cavity and close to the inner bottom of the hot tank body. The heating element is used to heat the heat exchange medium in the hot tank body.

[0006] Furthermore, the hot tank body is provided with an extraction tube, which extends into the hot tank body, and the extraction port of the hot tank body is located near the upper part of the liquid storage chamber.

[0007] Furthermore, a reflux pipe is provided on the hot tank body, the reflux pipe extends into the hot tank body, and the reflux port of the reflux pipe is close to the bottom of the liquid storage chamber.

[0008] Furthermore, the heating element includes a first heating tube, a second heating tube, and an annular tube, with both ends of the annular tube connected to the first heating tube and the second heating tube;

[0009] The first heating tube extends into the liquid storage cavity from the top or around the body of the hot tank; and the second heating tube extends into the liquid storage cavity from the top or around the body of the hot tank, with the annular tube disposed at the inner bottom of the body of the hot tank.

[0010] Furthermore, it also includes a temperature control system, which is connected to the heating element to form a closed loop;

[0011] The temperature control system can open or close the formed circuit based on the temperature of the outer wall of the hot tank body.

[0012] Furthermore, the temperature control system includes a temperature controller, and the number of temperature controllers is one or more.

[0013] Furthermore, the temperature controller includes a first temperature controller that can be automatically reset and a second temperature controller whose trigger temperature is higher than that of the first temperature controller and requires manual reset.

[0014] Furthermore, the temperature control system includes a temperature sensor, and the number of the temperature sensors is one or more.

[0015] According to the above technical solution, the temperature sensor in the temperature control system is responsible for monitoring the temperature of the hot tank body in real time. When there is only one temperature sensor, it monitors the temperature of the entire hot tank or a specific location and feeds the data back to the temperature control system. The temperature control system controls the opening and closing of the heating element according to the preset temperature threshold to maintain the temperature stability inside the hot tank body. When there are multiple temperature sensors, they monitor different areas of the hot tank respectively, providing the system with more comprehensive temperature data to achieve more precise temperature control and regulation.

[0016] Furthermore, when there are multiple temperature sensors, the temperature sensors are located at the upper part of the hot tank body and / or near the heating element.

[0017] On the other hand, this application also proposes a water supply device, including a housing and a heat exchange assembly, wherein the heat exchange assembly is disposed within the housing;

[0018] The heat exchange assembly includes a heat exchanger;

[0019] It also includes a hot tank as described above; the hot tank is connected to the heat exchanger.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] In this application, the heat exchange medium, after flowing through the external heat exchanger, experiences a temperature decrease and then flows back into the heat tank body through the return pipe. Because the return port of the return pipe is designed at the bottom of the heat tank body, and the heater is also located near the bottom of the heat tank body, the returning heat exchange medium can immediately contact the heater and be rapidly heated. The heated heat exchange medium then naturally convections and rises within the heat tank body, with the upper layer having a relatively higher temperature. The extraction pipe draws the high-temperature heat exchange medium from the upper part of the heat tank body and transports it back to the external heat exchanger for heat exchange. This process achieves continuous circulation heating and utilization of the heat exchange medium, not only improving the efficiency of thermal energy utilization but also ensuring a continuous high-temperature state for the heat exchange medium within the heat tank. It fully utilizes the space and thermal energy within the heat tank, achieving rapid heating and efficient circulation of the heat exchange medium, thus meeting the demand for thermal energy supply and improving the overall system operating efficiency.

[0022] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0023] Figure 1 This utility model relates to a hot tank body (viewable) in a hot tank. Figure 1 A schematic diagram of the split structure of );

[0024] Figure 2 This utility model relates to a hot tank body (viewable) in a hot tank. Figure 2 A schematic diagram of the split structure of );

[0025] Figure 3 This is a schematic diagram of the structure of the hot tank body in a hot tank according to the present invention;

[0026] Figure 4 This is a schematic diagram of the overall structure of the water supply device of this utility model;

[0027] Figure 5 This is a schematic diagram of the exploded structure of the water supply device of this utility model;

[0028] Figure 6 This is a schematic diagram of the heat exchange component structure of the water supply device of this utility model;

[0029] Figure 7 This is a schematic diagram of the water supply system of the present invention.

[0030] The reference numerals in the accompanying drawings include:

[0031] 1. Heater body; 2. Heating element; 31. Extraction pipe; 32. Return pipe; 21. First heating pipe; 22. Second heating pipe; 23. Ring pipe; 41. Temperature controller; 42. Temperature sensor; 5. Housing; 6. Heat exchange assembly; 61. Heat exchanger; 61. Drinking water inlet interface; 611. Drinking water outlet interface; 612. Heat exchange medium inlet interface; 613. Heat exchange medium outlet interface; 614. First pipe; 71. Second pipe; 72. Third pipe; 73. Fourth pipe; 81. Fifth pipe; 82. Sixth pipe; 83. Water pump; 84. Heater; 9. Heater outlet; 110. Heater inlet; 111. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] This embodiment proposes a hot water container, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a hot tank body 1 and a heating element 2. The hot tank body 1 has a liquid storage chamber for storing a heat exchange medium. After being heated, the heat exchange medium is introduced into the heat exchanger 61 to exchange heat with the drinking water located in the heat exchanger 61, thereby achieving the effect of rapidly heating the drinking water to meet the hot water demand of the drinking water equipment.

[0034] The heating element 2 is disposed in the liquid storage cavity and close to the bottom of the hot tank body 1. The heating element 2 is used to heat the heat exchange medium in the hot tank body 1.

[0035] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, the hot tank body 1 is provided with an extraction pipe 31 and a return pipe 32; the extraction pipe 31 extends from the top of the hot tank body 1 into the liquid storage chamber, and the extraction port of the hot tank body 1 is close to the upper part of the hot tank body 1; the return pipe 32 extends from the top of the hot tank body 1 into the liquid storage chamber, and the return port of the return pipe 32 is close to the bottom of the hot tank body 1.

[0036] According to the above technical solution, after the heat exchange medium flows through the external heat exchanger, its temperature decreases, and it then flows back to the storage chamber of the heat tank body 1 through the return pipe 32. Since the return port of the return pipe 32 is designed at the bottom of the heat tank body 1, and the heater is also located near the bottom of the heat tank body 1, the returning heat exchange medium can immediately contact the heater 9 and be rapidly heated. The heated heat exchange medium rises naturally by convection within the heat tank body 1, with the upper layer of medium having a relatively higher temperature. At this time, the extraction pipe 31 plays its role, extracting the high-temperature heat exchange medium from the upper part of the heat tank body 1 and transporting it again to the external heat exchanger 61 for heat exchange. This process realizes continuous circulation heating and utilization of the heat exchange medium, which not only improves the efficiency of heat energy utilization but also ensures the continuous high-temperature state of the heat exchange medium within the heat tank body 1. It makes full use of the space and heat energy within the heat tank body 1, achieving rapid heating and efficient circulation of the heat exchange medium, thus meeting the demand for heat energy supply and improving the overall system operating efficiency. The heat exchange medium can be a liquid with good heat transfer performance, such as oil or water.

[0037] Of course, it is understandable that the layout of the extraction pipe 31 and the return pipe 32 is not fixed and is not limited to extending from the top of the hot tank body 1 into the liquid storage chamber as described above. The insertion position can be flexibly adjusted according to the actual application scenario and needs, such as extending from the side of the hot tank body 1 or other suitable positions into the liquid storage chamber, as long as the extraction port of the extraction pipe 31 is close to the top and the return port of the return pipe 32 is close to the bottom, so as to achieve effective circulation and heating of the heat medium.

[0038] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, the heating element 2 includes a first heating tube 21, a second heating tube 22 and an annular tube 23. The two ends of the annular tube 23 are connected to the first heating tube 21 and the second heating tube 22 to form a complete heating circuit to heat the heat exchange medium together.

[0039] The first heating tube 21 extends into the liquid storage chamber from the top or around the perimeter of the heat tank body 1; the second heating tube 22 extends into the liquid storage chamber from the top or around the perimeter of the heat tank body 1. As an exemplary embodiment, both the first heating tube 21 and the second heating tube 22 extend into the liquid storage chamber from the top of the heat tank body 1, and the annular tube 23 is disposed at the inner bottom of the heat tank body 1. When the heating element 2 is activated, heat is rapidly transferred to the heat exchange medium in the liquid storage chamber, thereby heating the heat exchange medium. The heating element 2 is close to the inner bottom of the heat tank body 1. The advantage of this design is that the heat exchange medium flowing back from the bottom can be heated immediately, significantly improving the heating efficiency. In addition, the auxiliary heating effect of the first heating tube 21 and the second heating tube 22 further enhances the overall heating effect, enabling the heat exchange medium in the heat tank body 1 to quickly reach the required temperature.

[0040] In a preferred embodiment, the return port of the return pipe 32 can be located inside the annular pipe 23. According to the above technical solution, by placing the return port of the return pipe 32 inside the annular pipe 23, the heating effect of the annular pipe 23 is cleverly utilized. The returning heat exchange medium can be immediately heated by the annular pipe 23, thereby rapidly restoring its temperature and improving the efficiency and speed of heat transfer. Of course, the return port of the return pipe 32 can also be located outside or above the annular pipe 23.

[0041] In a preferred embodiment, a temperature control system is also included, which is controlled to connect with the heating element 2 to form a closed loop; the temperature control system can open or close the formed loop according to the temperature of the hot tank body 1; the temperature control system includes a temperature controller 41, which includes a first temperature controller 41 that can be automatically reset and a second temperature controller 41 whose trigger temperature is higher than that of the first temperature controller 41 and requires manual reset.

[0042] In this circuit, the first temperature controller 41, the second temperature controller 41, and the heating element 2 are connected in series to jointly control the temperature of the heating element 2. This design ensures that the heating element 2 can operate safely and reliably. When the temperature reaches a preset first threshold (e.g., 105 degrees Celsius), the first temperature controller 41 will automatically trigger, causing the heating element 2 to disconnect, thereby preventing damage caused by excessive temperature. The first temperature controller 41 has an automatic reset function; when the temperature drops back to a safe range (e.g., 80 degrees Celsius), it will automatically reset, and the heating element 2 will resume normal operation.

[0043] It is worth noting that the temperature control system is also equipped with a second temperature controller 41 as backup protection. If the first temperature controller 41 fails for some reason, when the temperature continues to rise to a higher second threshold (such as 120 degrees), the second temperature controller 41 will take effect and also disconnect the heating element 2. However, unlike the first temperature controller 41, once triggered, it will not automatically reset, but will require manual inspection of the machine to restore its operation. This dual protection design not only improves the reliability and safety of the system, but also provides users with convenient troubleshooting and maintenance methods.

[0044] As a preferred embodiment, the number of temperature controllers 41 is one or more. When the number of temperature controllers 41 in the temperature control system is one, its main advantage is the simplification of the system structure. A single temperature controller 41 can centrally monitor the temperature of the outer wall of the hot tank body 1 and control the circuit of the heating element 2 to be opened or closed according to the preset temperature threshold. This design reduces the complexity of the system, reduces potential failure points, makes temperature control more direct and easier to manage, and meets basic heating needs.

[0045] When the number of temperature controllers 41 in the temperature control system increases to multiple, the temperature control system has greater flexibility and accuracy. Multiple temperature controllers 41 can monitor different parts of the hot tank body 1, such as the bottom, middle and top, so as to have a more comprehensive understanding of the temperature distribution inside the hot tank body 1. The multi-point monitoring method helps to detect and solve local overheating or overcooling problems in a timely manner, ensuring that the heat exchange medium inside the hot tank body 1 can be heated evenly. In addition, multiple temperature controllers 41 can also achieve more precise temperature control, such as adjusting the heating power according to actual needs, and further improving the utilization efficiency of heat energy.

[0046] As a preferred embodiment, the temperature control system includes a temperature sensor 42, and the number of temperature sensors 42 is one or more. The temperature sensor 42 in the temperature control system is responsible for monitoring the temperature of the hot tank body 1 in real time. When the temperature control system contains only one temperature sensor 42, its main advantages are cost savings and simplified system structure. In addition, the single sensor design reduces system complexity, lowers failure rate and maintenance cost, and is applicable to application scenarios with limited budget or space constraints.

[0047] When there are multiple temperature sensors 42, the temperature sensors 42 are located at the upper part of the hot tank body 1 and / or near the heating element 2. They monitor different areas of the hot tank respectively, providing the system with more comprehensive temperature data to more accurately reflect the temperature conditions of different areas. Multi-point monitoring helps to detect and solve local overheating or overcooling problems in a timely manner, improving heating efficiency and safety. In addition, multiple temperature sensors 42 can also provide richer data support for the temperature control system, enabling more refined temperature control strategies.

[0048] On the other hand, such as Figures 4 to 7 As shown, the present invention also proposes a water supply device, including a housing 5 and a heat exchange assembly 6. The heat exchange assembly 6 is disposed inside the housing 5 and includes a heat exchanger 61. A hot tank is connected to the heat exchanger 61.

[0049] It also includes a first pipe unit and a second pipe unit, which are disposed inside the housing 5;

[0050] The first piping unit includes a first pipe 71, a second pipe 72, and a third pipe 73. The first pipe 71 is connected to a drinking water inlet 611. One end of the second pipe 72 is connected to a drinking water outlet 612, and the other end of the second pipe 72 is connected to a heater 9. The heater 9 is connected to the third pipe 73. According to the above technical solution, this embodiment provides a drinking water inlet 611, a drinking water outlet 612, a heat exchange medium inlet 613, and a heat exchange medium outlet 614 on the heat exchanger 61. These interfaces provide necessary channels for heat exchange between the heat medium and the drinking water. When the system starts operating, the drinking water first enters the heat exchanger 61 through the drinking water inlet 611. Inside the heat exchanger 61, the drinking water exchanges heat with the heat medium that enters through the heat exchange medium inlet 613. During this process, the heat medium transfers heat to the drinking water, gradually increasing its temperature and achieving a preheating effect, which facilitates the rapid and large-volume supply of hot drinking water. The preheated drinking water then flows out of the heat exchanger 61 through the drinking water outlet 612 and is guided to the heater 9 via the second pipe 72 of the first piping unit for further heating.

[0051] The second pipeline unit 72 includes a fourth pipeline 81, a fifth pipeline 82, and a sixth pipeline 83. The bottom end of the fourth pipeline 81 is connected to the fifth pipeline 82. Due to water loss caused by heating and evaporation in the heat tank body 1, water needs to be replenished when the liquid level drops to a certain position. Therefore, the fourth pipeline 81 is connected to a water inlet pipe to replenish water to the heat tank body 1. The heat tank body 1 has a heat tank outlet 110 and a heat tank inlet 111. It should be noted that when the heat tank body introduces heat exchange medium into the heat exchanger 61, the valve on the fourth pipeline 81 needs to be closed. The left end of the fifth pipeline 82 is connected to the heat exchange medium inlet interface 613 of the heat exchanger 61, and the right end of the fifth pipeline 82 is connected to the heat tank outlet 110. The sixth pipeline 83 is connected to the heat exchange medium outlet interface 614, and the top end of the sixth pipeline 83 is connected to the heat tank inlet 111.

[0052] A valve is installed on the fourth pipe 81; a water pump 84 is installed on the fifth pipe 82 and / or the sixth pipe 83.

[0053] Furthermore, to overcome potential resistance encountered by the heat medium during circulation and ensure smooth circulation within the system, a water pump 84 is installed on the fifth pipe 82 and / or the sixth pipe 83. The addition of the water pump 84 not only improves operating efficiency but also allows the entire system to more flexibly adjust its operating status under different conditions. During operation, the heat medium in the heat tank enters the fifth pipe 82 through the fourth pipe 81 (with the valve open), then the valve is closed, and the water pump 84 pushes the heat exchange medium in the heat tank to the heat exchanger 61. Inside the heat exchanger 61, the heat medium exchanges heat with the drinking water, transferring heat to preheat the drinking water. The preheated heat medium then returns to the heat tank through the sixth pipe 83, completing one cycle. Through continuous circulation and preheating, the water supply device proposed in this invention can efficiently utilize the thermal energy in the heat medium to provide users with fast and large quantities of drinking water at a suitable temperature.

[0054] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A thermal tank, characterized by, It comprises: a heat tank body (1) having a liquid storage cavity for storing heat exchange medium; a heating element (2) arranged in the liquid storage cavity and close to the bottom of the heat tank body (1), and the heating element (2) is used for heating the heat exchange medium in the heat tank body (1).

2. A heat pot according to claim 1, wherein The heat tank body (1) is provided with a suction pipe (31) extending into the heat tank body (1), and the suction port of the heat tank body (1) is close to the upper position of the liquid storage cavity.

3. A heat pot according to claim 1, wherein The heat tank body (1) is provided with a backflow pipe (32) ， The backflow pipe (32) extends into the heat tank body (1), and a backflow opening of the backflow pipe (32) is close to a bottom position of the liquid storage cavity.

4. A heat pot according to claim 3, wherein The heating element (2) comprises a first heating pipe (21), a second heating pipe (22) and an annular pipe (23), both ends of the annular pipe (23) are connected with the first heating pipe (21) and the second heating pipe (22); The first heating pipe (21) extends into the liquid storage cavity from the top or the periphery of the heat tank body (1); and the second heating pipe (22) extends into the liquid storage cavity from the top or the periphery of the heat tank body (1), and the annular pipe (23) is arranged at the inner bottom of the heat tank body (1).

5. The heat pot of claim 1, wherein, It also comprises a temperature control system which is in control connection with the heating element (2) to form a closed loop; The temperature control system can disconnect or close the formed loop according to the temperature of the heat tank body (1).

6. A heat pot according to claim 5, wherein The temperature control system comprises one or more temperature controllers (41).

7. A heat pot according to claim 6, wherein The temperature controller (41) comprises a first temperature controller which can be automatically reset, and a second temperature controller whose trigger temperature is higher than that of the first temperature controller and needs to be manually reset.

8. A heat pot according to any one of claims 5 to 7, wherein The temperature control system comprises one or more temperature sensors (42).

9. A heat pot according to claim 8, wherein When the number of temperature sensors (42) is more than one, the temperature sensors (42) are arranged at the upper position of the heat tank body (1) and / or close to the heating element (2).

10. A water supply device characterized by comprising: It comprises a shell (5) and a heat exchange assembly (6) arranged in the shell (5); The heat exchange assembly (6) comprises a heat exchanger (61); It also comprises the heat tank of any one of claims 1-9; the heat tank is connected with the heat exchanger (61).

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