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, a heat exchange medium cavity of a hollow structure is formed in the heat tank body, and the heat exchange medium cavity is used for storing a heat exchange medium; the extraction pipe extends into the heat exchange medium cavity, the end of the extraction pipe is located at the top of the heat exchange medium cavity, and the extraction pipe is used for extracting an upper-layer heat exchange medium in the heat exchange medium cavity; the return pipe extends into the heat exchange medium cavity, the end of the return pipe is located in the middle or at the bottom of the heat exchange medium cavity, the return pipe is used for returning a heat exchange medium to the heat exchange medium cavity, the heat tank body comprises a heat exchange cylinder and two end covers, the two end covers are fixedly arranged at the two ends of the heat exchange cylinder respectively, and the two end covers are arranged in the heat exchange cylinder. And the two end covers and the heat exchange cylinder jointly enclose to form the heat exchange medium cavity, so that the heat energy utilization rate of the hot tank is increased, and energy waste is reduced.

Description

Technical Field

[0001] This application relates to the field of drinking water equipment technology, and in particular to a hot water tank and water supply device. Background Technology

[0002] In the field of drinking water equipment, the heating tank, as its core component, plays a crucial role. Its main function is to store hot water and exchange heat with external drinking water through a heat exchanger. The working principle of the heating tank is that the heat exchange medium inside (usually water or other heat-conducting liquid) is heated to a certain temperature and then enters the heat exchanger through pipes. In the heat exchanger, this high-temperature medium exchanges heat with the external drinking water, thus raising the temperature of the drinking water for the first time. This design effectively improves the heating efficiency of drinking water, ensuring that users can quickly obtain hot water. It makes full use of the principle of heat conduction, and through the circulation of the internal heat exchange medium (such as water or other highly efficient heat-conducting liquid), heat is evenly and efficiently transferred to the external drinking water, significantly improving the efficiency and speed of drinking water heating and ensuring that users can obtain the hot water they need immediately.

[0003] However, despite the excellent performance of hot water tanks in heating drinking water, in modern life and industrial production, especially in situations where a stable temperature of drinking water is required, such as homes, offices, hospitals, schools, and various industrial production lines, it is not only required to provide safe and hygienic drinking water, but also to be highly energy-efficient in order to meet the needs of modern society for the rational use of resources and environmental protection.

[0004] Traditional hot water tank designs often use a simple heating element integrated with the tank to maintain water temperature by heating the entire tank. However, this method suffers from significant energy waste. Due to water's relatively poor thermal conductivity, when the heating element is activated, the water temperature at the bottom of the tank rises rapidly, while the temperature at the top rises more slowly, resulting in uneven temperature distribution. When users draw water from the bottom or middle of the tank, they obtain hot water, but the high-temperature water at the top is often overlooked and remains unused for extended periods, leading to substantial energy waste.

[0005] Therefore, the inventor of the utility model proposes a hot water tank and a water supply device to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of this, this application provides a hot tank to improve the thermal energy utilization rate of the hot tank and reduce energy waste; 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 a hollow heat exchange medium cavity is formed within the hot tank body, the heat exchange medium cavity being used to store the heat exchange medium;

[0007] An extraction tube extends into the heat exchange medium cavity, with its end located at the top of the heat exchange medium cavity, for extracting the upper layer of heat exchange medium from the heat exchange medium cavity.

[0008] A return pipe extends into the heat exchange medium cavity, with its end located in the middle or bottom of the heat exchange medium cavity, for returning the heat exchange medium to the heat exchange medium cavity.

[0009] According to the above technical solution, during operation, the heat exchange medium cavity inside the hot tank body is first filled with heat exchange medium. These heat exchange media gradually heat up under the heating of the heat source and store a large amount of thermal energy. Since the heated heat exchange medium will move upward, the temperature of the heat exchange medium at the top of the heat exchange medium cavity is usually higher. By inserting one end of the extraction pipe into the heat exchange medium cavity, and designing the water suction end of the extraction pipe at the top of the heat exchange medium cavity, these high-temperature heat exchange media can be directly extracted for heat exchange. This ensures that the highest temperature heat exchange medium is used when exchanging heat with the drinking water to be heated. This helps to accelerate the heat exchange speed, improve the heat exchange efficiency, and avoid the waste of high-temperature hot water in the upper layer.

[0010] Furthermore, the heat tank body includes a heat exchange cylinder and two end caps. The two end caps are respectively fixedly disposed at both ends of the heat exchange cylinder, and the two end caps and the heat exchange cylinder together enclose the heat exchange medium cavity.

[0011] According to the above technical solution, the heat exchange tank body is the core component of the drinking water equipment. It mainly consists of a heat exchange cylinder and two end caps. The heat exchange cylinder, as the main body of the heat exchange tank, is usually made of high-strength, corrosion-resistant materials to ensure that it can withstand high-temperature and high-pressure working environments. The two end caps are respectively located at both ends of the heat exchange cylinder and are tightly connected to the heat exchange cylinder through sealing structures (such as flange connections, threaded connections, etc.) to form a heat exchange medium cavity structure for storing the heat exchange medium. This design not only ensures that the medium inside the heat exchange tank body (such as water, steam, heat exchange oil, etc.) will not leak into the external environment, but also prevents external impurities from entering the interior of the heat exchange tank body, ensuring the normal operation of the heat exchange tank equipment and the purity of the medium.

[0012] Furthermore, the hot tank body is provided with a first mounting hole and a second mounting hole, and the extraction tube passes through the first mounting hole to extend into the hot tank body;

[0013] The return pipe passes through the second mounting hole and extends into the body of the hot tank.

[0014] Furthermore, the first mounting hole is installed on the heat exchange cylinder and / or the two end caps;

[0015] The second mounting hole is installed on the heat exchange cylinder and / or both end caps.

[0016] According to the above technical solution, both the extraction pipe and the return pipe can be installed in a suitable position according to actual needs and system design, thereby optimizing the internal structural layout of the heat tank; by setting the first mounting hole and the second mounting hole on the heat exchange cylinder and / or the end caps, the connection between the heat exchange pipeline and the heat tank body is ensured to be more stable and reliable, which facilitates later maintenance and repair work.

[0017] Furthermore, sealing rings are provided on the first mounting hole and the second mounting hole.

[0018] According to the above technical solution, the sealing ring is usually made of rubber or other elastic materials, which has good elasticity and wear resistance, and can adapt to the working requirements under different temperature and pressure environments. The use of the sealing ring can effectively prevent the leakage of heat exchange medium and ensure the stability and safety of the heat tank body.

[0019] Furthermore, a circulation pump is provided on the extraction pipe and / or the return pipe.

[0020] According to the above technical solution, the installation position of the circulating pump is flexible. It can be installed on the extraction pipe or the return pipe. The installation position of the circulating pump can be flexibly adjusted according to actual needs and system layout, which optimizes the overall structure of the hot tank system. Secondly, the flexible installation of the circulating pump helps to achieve a more efficient heat exchange process. Whether it is extracting high-temperature heat exchange medium or returning the heat exchanged medium, the stability of the system can be ensured.

[0021] Furthermore, the hot tank body is equipped with a water level sensor, which stops drawing water when the water level in the hot tank body is lower than the extraction port of the extraction pipe.

[0022] Furthermore, the hot tank body is equipped with a temperature sensor, which is located outside the hot tank body and is flush with the extraction port of the extraction tube and / or flush with the return port of the return tube; and / or,

[0023] The temperature sensor is disposed inside the hot tank body, near the extraction port of the extraction tube and / or the return port of the return tube.

[0024] Furthermore, the temperature sensor is a probe-type sensor.

[0025] On the other hand, this application also proposes a water supply device, characterized in that it includes a shell and a heat exchange assembly, wherein the heat exchange assembly is disposed inside the shell;

[0026] The heat exchange assembly includes a heat exchanger;

[0027] It also includes a hot tank as described above; the hot tank is connected to the heat exchanger.

[0028] This application sets the hot water tank body as a hollow structure to store the heat exchange medium. After being heated, the heat exchange medium is used to exchange heat with drinking water, thereby achieving the function of rapidly heating drinking water to meet the hot water demand of drinking water equipment.

[0029] The extraction pipe extends into the heat exchange medium cavity, with its end located at the top of the cavity, to extract the upper layer of heat exchange medium. The return pipe extends into the heat exchange medium cavity, with its end located in the middle or bottom, to return the heat exchange medium back into the cavity. During operation, the heat exchange medium cavity inside the heat exchange tank is initially filled with heat exchange medium. This medium gradually heats up under the influence of the heat source, storing a large amount of thermal energy. Because the heated medium rises, the temperature at the top of the cavity is typically higher. By extending one end of the extraction pipe deep into the cavity, with its suction end positioned at the top, this allows for direct extraction of the high-temperature heat exchange medium. This ensures that the hottest heat exchange medium is used when exchanging heat with the drinking water, accelerating the heat exchange rate, improving efficiency, and preventing the waste of the upper layer of hot water. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] in:

[0032] Figure 1 This is a partially disassembled structural diagram of the heating tank and water supply device of this utility model;

[0033] Figure 2 This is a schematic diagram of the split structure of the hot water tank of this utility model from one direction;

[0034] Figure 3 This is a schematic diagram of the split structure of the hot water tank of this utility model from another direction;

[0035] Figure 4 This is a schematic diagram of the overall structure of the water supply device of this utility model;

[0036] Figure 5 This is a schematic diagram of the disassembled water supply device of this utility model;

[0037] Figure 6 This is a schematic diagram of the heat exchange component structure of the water supply device of this utility model;

[0038] Figure 7 This is a schematic diagram of the water supply device of this utility model.

[0039] The components include: a heat tank body 1, a heat exchange cylinder 11, an end cap 12, a first mounting hole 13, a second mounting hole 14, an extraction pipe 2, a return pipe 3, a circulation pump 4, a shell 5, a heat exchange assembly 6, a heat exchanger 61, a drinking water inlet interface 611, a drinking water outlet interface 612, a hot water inlet interface 613, a hot water outlet interface 614, a first pipe 71, a second pipe 72, a third pipe 73, a fourth pipe 81, and a valve 10. Detailed Implementation

[0040] 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.

[0041] 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, an extraction pipe 2, and a return pipe 3. The hot tank body 1 has a hollow heat exchange medium cavity, which is used to store the heat exchange medium. After being heated, the heat exchange medium is used to exchange heat with drinking water, thereby achieving the effect of rapidly heating drinking water to meet the hot water demand of the drinking water equipment.

[0042] The extraction pipe 2 extends into the heat exchange medium cavity, and the end of the extraction pipe 2 is located at the top of the heat exchange medium cavity, for extracting the upper layer of heat exchange medium in the heat exchange medium cavity; the return pipe 3 extends into the heat exchange medium cavity, and the end of the return pipe 3 is located at the middle or bottom of the heat exchange medium cavity, for returning the heat exchange medium to the heat exchange medium cavity.

[0043] According to the above technical solution, during operation, the heat exchange medium cavity inside the hot tank body 1 is first filled with heat exchange medium, which can be an aqueous solution or a heat transfer oil. In this embodiment, the heat exchange medium is preferably an aqueous solution. These heat exchange media gradually heat up under the heating of the heat source and store a large amount of thermal energy. Since the heated heat exchange media will move upward due to heat, the temperature of the heat exchange medium at the top of the heat exchange medium cavity is usually higher. By inserting one end of the extraction pipe 2 into the heat exchange medium cavity and designing it at the top of the heat exchange medium cavity, these high-temperature heat exchange media can be directly extracted for heat exchange. This ensures that when exchanging heat with the drinking water to be heated, the heat exchange medium with the highest temperature is used. This helps to accelerate the heat exchange speed, improve the heat exchange efficiency, and avoid the waste of the high-temperature hot water in the upper layer.

[0044] The heat tank body 1 includes a heat exchange cylinder 11 and two end caps 12. The two end caps 12 are fixedly installed at both ends of the heat exchange cylinder 11. The two end caps 12 and the heat exchange cylinder 11 together enclose a heat exchange medium cavity, which provides sufficient storage space for the heat exchange medium.

[0045] As a preferred embodiment, such as Figure 3 As shown, the hot tank body 1 is provided with a first mounting hole 13 and a second mounting hole 14. The extraction tube 2 passes through the first mounting hole 13 to extend into the hot tank body 1, and is fixed to the hot tank body 1 after passing through the first mounting hole 13. The return tube 3 passes through the second mounting hole 14 to extend into the hot tank body 1, and is fixed to the hot tank body 1 after passing through the second mounting hole 14.

[0046] Furthermore, the first mounting hole 13 is installed on the heat exchange cylinder 11 and / or the end caps 12; the second mounting hole 14 is installed on the heat exchange cylinder 11 and / or the end caps 12.

[0047] The first mounting hole 13 can be formed on the heat exchange cylinder 11 or on the two end caps 12; the second mounting hole 14 can be formed on the heat exchange cylinder 11 or on the two end caps 12. Of course, the number of extraction pipe 2 and return pipe 3 is not limited to one, but can be multiple, depending on the specific scenario. When there are multiple extraction pipes 2 and return pipes 3, there are also multiple first mounting holes 13 and second mounting holes 14. The first mounting hole 13 and the second mounting hole 14 can be installed on the heat exchange cylinder 11 at the same time, or they can be installed on the heat exchange cylinder 11 and the end caps 12 respectively, depending on the specific installation conditions.

[0048] As a preferred option, such as Figure 3As shown, both the first mounting hole 13 and the second mounting hole 14 are installed on the end cover 12. It should be noted that the positions of the first mounting hole 13 and the second mounting hole 14 can also be determined according to the specific installation conditions on site. However, after the extraction pipe 2 extends into the heat tank body 1 through the first mounting hole 13, the end (water suction end) of the extraction pipe 2 needs to be set close to the inner top of the heat tank body 1 in order to extract the high-temperature heat exchange medium.

[0049] Meanwhile, in traditional hot tank designs, thermal stratification of the heat exchange medium within the heat exchange medium cavity can lead to uneven heat distribution. However, this design extends one end of the return pipe 3 into the heat exchange medium cavity, but its position is located in the middle or bottom of the heat exchange medium cavity. Combined with the method of extracting high-temperature heat exchange medium from the top, this helps to reduce thermal stratification and make the temperature within the heat exchange medium cavity more uniform. After the extraction pipe 2 extracts the high-temperature heat exchange medium, this heat exchange medium undergoes a heat exchange process (such as heat exchange with the drinking water to be heated), and its temperature decreases. Then, it flows back to the middle or bottom of the heat exchange medium cavity through the return pipe 3. This circulation process not only promotes the uniform distribution of the heat exchange medium within the heat exchange medium cavity, but also ensures that the entire hot tank system can continuously and stably provide heat energy.

[0050] In a preferred embodiment, sealing rings (not shown) are provided on the first mounting hole 13 and the second mounting hole 14 to ensure the sealing performance and stability of the system. The sealing rings are preferably in the form of O-rings because they have the advantages of simple structure, convenient installation and reliable sealing effect. The sealing rings are usually made of rubber or other elastic materials, which have good elasticity and wear resistance and can adapt to the working requirements under different temperature and pressure environments. In this embodiment, the use of sealing rings can effectively prevent the leakage of heat exchange medium and ensure the stability and safety of the heat tank body 1.

[0051] Furthermore, a circulation pump 4 is installed on the extraction pipe 2 and / or the return pipe 3.

[0052] In one embodiment, the circulating pump 4 can be installed on the extraction pipe 2 to extract the heat exchange medium from the heat tank body 1; of course, the circulating pump 4 can also be installed on the return pipe 3 to achieve the purpose of extracting the heat exchange medium for heat exchange. The installation position of the circulating pump 4 is flexible; it can be installed on either the extraction pipe 2 or the return pipe 3. The installation position of the circulating pump 4 can be flexibly adjusted according to actual needs and system layout, optimizing the overall structure of the heat tank system. Furthermore, the flexible installation of the circulating pump 4 helps to achieve a more efficient heat exchange process, ensuring system stability whether extracting high-temperature heat exchange medium or returning the heat-exchanged medium.

[0053] In a preferred embodiment, the heat tank body 1 is equipped with a water level sensor, which is used to detect the liquid level of the heat exchange medium inside the heat tank body 1. When the liquid level inside the heat tank body 1 is lower than the extraction port of the extraction pipe, water intake is stopped.

[0054] In one embodiment, the hot tank body 1 is equipped with a temperature sensor, which is located outside the hot tank body 1 and flush with the extraction port of the extraction pipe and / or the return port of the return pipe. Positioning the temperature sensor outside the hot tank body 1, flush with the extraction port and / or return port, facilitates installation and maintenance. Because the temperature sensor is located outside the hot tank body 1, operators do not need to enter the hot tank body 1 to install, debug, and replace it, reducing operational difficulty and risk. Simultaneously, this layout also helps to reduce the impact of the harsh environment inside the hot tank, such as high temperature and high pressure, on the performance of the temperature sensor, extending its service life.

[0055] In another embodiment, the temperature sensor is disposed inside the heat tank body 1; the temperature sensor is a probe-type sensor, located near the extraction port of the extraction tube and / or the return port of the return tube. By configuring the temperature sensor as a probe-type and placing it directly inside the heat tank body 1, near the extraction port of the extraction tube and / or the return port of the return tube, the probe-type sensor can achieve good contact with the heat exchange medium, reducing measurement errors caused by external environmental influences. This ensures that the temperature measured by the temperature sensor more accurately reflects the actual temperature inside the heat tank body 1.

[0056] Of course, when there are multiple temperature sensors, they can be flexibly installed inside or outside the heat tank body 1, enabling comprehensive and multi-angle monitoring of the heat tank system temperature. Multiple temperature sensors can provide richer and more accurate temperature data, helping operators to have a more complete understanding of the operating status of the heat tank system. At the same time, this configuration also helps to improve the redundancy and reliability of the system. Even if one temperature sensor fails, other temperature sensors can still continue to work, ensuring the continuous and stable operation of the system.

[0057] On the other hand, such as Figures 4 to 7 As shown, this utility model also proposes a water supply device, including a shell 5 and a heat exchange component 6. The heat exchange component 6 is disposed inside the shell 5 and includes a heat exchanger 61. The hot tank is connected to the heat exchanger 61.

[0058] It also includes a first pipe unit 71, which is disposed inside the housing 5;

[0059] The heat exchanger 61 is provided with a first flow channel, a drinking water inlet 611, a drinking water outlet 612, a second flow channel, a hot water inlet 613, and a hot water outlet 614; the first flow channel is connected to the drinking water inlet 611 and the drinking water outlet 612, and the second flow channel is connected to the hot water inlet 613 and the hot water outlet 614.

[0060] The first pipe unit 71 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 8. The heater 8 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 hot water inlet 613, and a hot water outlet 614 on the heat exchanger 61. These interfaces provide necessary flow channels for heat exchange between the heat medium and drinking water. At startup, drinking water first enters the first flow channel in the heat exchanger 61 through the drinking water inlet 611, while the heat exchange medium enters the second flow channel in the heat exchanger 61 through the hot water inlet 613. The first and second flow channels are close to each other but not connected, but the heat exchange medium in the second flow channel is connected to the third pipe 73. The drinking water in the first channel undergoes heat exchange inside the heat exchanger 61. During this process, the heat exchange medium transfers heat to the drinking water, gradually increasing its temperature and achieving a preheating effect, which facilitates the rapid and large-scale 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 8 through the second pipe 72 of the first pipe unit 71 for further heating. At the same time, the heat exchange medium in the second channel flows into the return pipe 3 through the hot water outlet 614 and finally enters the middle or bottom of the hot tank body 1 through the return pipe 3.

[0061] It also includes a fourth pipe 81, the bottom end of which is connected to the extraction pipe 2. Since the heat exchange medium in the heat tank body 1 is lost due to heating and evaporation, it needs to be replenished when the liquid level drops to a certain position. Therefore, the fourth pipe 81 is connected to an external water pipe to replenish the heat exchange medium to the heat tank body 1. A valve 10 is installed on the fourth pipe 81. It should be noted that when the heat tank body 1 introduces the heat exchange medium into the heat exchanger 61, the valve 10 on the fourth pipe 81 needs to be closed.

[0062] During operation, the heat transfer medium in the heat tank body 1 enters the heat tank body 1 through the fourth pipe 81 (with valve 10 open). Then, valve 10 is closed, and the circulating pump 4 pushes the heat transfer medium in the heat tank body 1 to the heat exchanger 61. Inside the heat exchanger 61, the heat transfer medium exchanges heat with the drinking water, transferring heat to the drinking water and preheating it. The preheated heat transfer medium then returns to the heat tank body 1 through the return pipe 3, 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 transfer medium to provide users with drinking water at a suitable temperature quickly and in large quantities.

[0063] 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, The application relates to a heat tank, which comprises the following parts: a heat tank body (1) in which a heat medium cavity for storing heat medium is formed; an extraction pipe (2) with an extraction opening close to the top of the heat medium cavity for extracting the upper heat medium in the heat medium cavity; a return pipe (3) with a return opening close to the middle or bottom of the heat medium cavity for returning heat medium into the heat medium cavity.

2. The thermal tank of claim 1, wherein: The heat tank body (1) comprises a heat cylinder (11) and two end covers (12) fixedly arranged at the two ends of the heat cylinder (11), and the two end covers (12) and the heat cylinder (11) jointly form the heat medium cavity.

3. The thermal tank of claim 2, wherein: The heat tank body (1) is provided with a first mounting hole (13) and a second mounting hole (14), the extraction pipe (2) penetrates through the first mounting hole (13) and extends into the heat tank body (1); the return pipe (3) penetrates through the second mounting hole (14) and extends into the heat tank body (1).

4. The thermal tank of claim 3, wherein: The first mounting hole (13) is arranged on the heat cylinder (11) and / or the two end covers (12); the second mounting hole (14) is arranged on the heat cylinder (11) and / or the two end covers (12).

5. The thermal tank of claim 3, wherein: Sealing rings are arranged on the first mounting hole (13) and the second mounting hole (14).

6. The thermal tank of claim 1, wherein: A circulating pump (4) is arranged on the extraction pipe (2) and / or the return pipe (3).

7. The thermal tank of claim 1, wherein: The heat tank body (1) is provided with a water level sensor, and water suction is stopped when the water level of the heat tank body (1) is lower than the extraction opening of the extraction pipe (2).

8. The thermal tank of claim 1, wherein: The heat tank body (1) is provided with a temperature sensor arranged outside the heat tank body (1), and the temperature sensor is flush with the extraction opening of the extraction pipe (2) and / or flush with the return opening of the return pipe (3); and / or The temperature sensor is arranged in the heat tank body (1) and close to the extraction opening of the extraction pipe (2) and / or the return opening of the return pipe (3).

9. The thermal tank of claim 8, wherein: The temperature sensor is a probe type sensor.

10. A water supply device characterized by comprising: The application further relates to a heat tank, which comprises the following parts: a shell (5) and a heat exchange assembly (6) arranged in the shell (5); the heat exchange assembly (5) comprises a heat exchanger (61); the heat tank is connected with the heat exchanger.

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