Heat exchange water tank

Abstract

The utility model discloses a heat exchange water tank which comprises an inner container provided with a liquid outlet and a liquid inlet. The first heat exchange pipe is arranged in the inner container in a surrounding mode, the first heat exchange pipe comprises a first horizontal section and a first inclined section, and an included angle is formed between the bottom of the first horizontal section and the first inclined section; the second heat exchange pipe is arranged in the inner container in a surrounding mode, the second heat exchange pipe is arranged on the inner side of the first heat exchange pipe, the second heat exchange pipe comprises a second horizontal section and a second inclined section, and an included angle is formed between the bottom of the second horizontal section and the second inclined section; the first heat exchange pipe and the second heat exchange pipe are both configured to heat and preserve heat of a medium in the inner container. The heat exchange efficiency of the heat exchange water tank is improved, the waiting time of a user is shortened, and the user experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to a water exchange tank. Background Art

[0002] An analysis of the coil water exchange tank structure commonly used in the market shows that the heat exchange efficiency is generally low, resulting in a long heat exchange time, causing energy waste and long waiting time for users. This is especially true when heating and domestic hot water are supplied from the same heat source, resulting in low efficiency.

[0003] At present, the heat exchange structure generally adopts the built-in spiral coil heat exchange and stainless steel plate heat exchange method to heat the liquid, which has the following main disadvantages: (1) When the wall thickness and diameter of the coil or stainless steel plate are too large, the heat exchange efficiency will be low; when the wall thickness and diameter of the coil or stainless steel plate are too small, the service life will be short and there will be safety hazards; (2) Figure 7 As shown, a heat exchange device and a water heater with patent publication number CN214470230U are shown. Since the number of coil tubes is large, although the heat exchange efficiency is improved, the volume of the water tank will increase, resulting in a larger space occupied by the water tank in the room, resulting in a poor user experience.

[0004] In view of this, how to design a water exchange tank technology that ensures high heat exchange efficiency while not increasing the indoor space occupied and improving user experience is the technical problem to be solved by the present invention. Utility Model Content

[0005] The utility model provides a heat exchange water tank, which reduces the indoor space occupied by the heat exchange water tank and improves the heat exchange efficiency.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] The utility model provides a water exchange tank, comprising:

[0008] an inner container, which is provided with a liquid outlet and a liquid inlet;

[0009] a first heat exchange tube, which is disposed in the inner tank in a surrounding manner, the first heat exchange tube comprising a first horizontal section and a first inclined section, wherein an angle is formed between the bottom of the first horizontal section and the first inclined section;

[0010] a second heat exchange tube, which is disposed in the inner tank and is disposed inside the first heat exchange tube, the second heat exchange tube comprising a second horizontal section and a second inclined section, and an angle is formed between the bottom of the second horizontal section and the second inclined section;

[0011] The first heat exchange tube and the second heat exchange tube are both configured to heat and keep the liquid in the inner tank warm.

[0012] In some embodiments of the present application, the first heat exchange tube is provided with a first medium inlet and a first medium outlet, and the second heat exchange tube is provided with a second medium inlet and a second medium outlet, and the first medium inlet, the first medium outlet, the second medium inlet and the second medium outlet are all located outside the inner tank.

[0013] In some embodiments of the present application, the height of the second heat exchange tube is higher than the height of the first heat exchange tube.

[0014] In some embodiments of the present application, the angle formed between the bottom of the first horizontal segment and the first inclined segment, and the angle formed between the bottom of the second horizontal segment and the second inclined segment are both 30°.

[0015] In some embodiments of the present application, both the first heat exchange tube and the second heat exchange tube are spiral coils.

[0016] In some embodiments of the present application, an anti-corrosion coating is provided on the tube walls of the first heat exchange tube and the second heat exchange tube.

[0017] In some embodiments of the present application, there is a gap between the first heat exchange tube and the second heat exchange tube.

[0018] In some embodiments of the present application, an observation port is further provided on the inner liner, and the observation port is configured to observe the internal conditions of the inner liner and / or an external auxiliary heating source.

[0019] In some embodiments of the present application, the water exchange water tank further includes an outer shell and an insulation layer, and the insulation layer is provided between the inner tank and the outer shell.

[0020] In some embodiments of the present application, the heat exchange water tank is a vertical water tank, a horizontal water tank, and a wall-mounted water tank.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are: by arranging the first heat exchange tube and the second heat exchange tube in the inner tank as a double-layer heat exchange tube structure, the heat exchange efficiency is greatly improved, the water inside the inner tank can be quickly heated and insulated, the user's waiting time is reduced, and the user's usage experience is improved; the first heat exchange tube and the second heat exchange tube are respectively provided with the first inclined section and the second inclined section, which increases the heat exchange area of ​​the heat exchange tube within a certain inner tank space, improves the heat exchange efficiency, improves the reliability of the water exchange water tank and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 A schematic structural diagram of an embodiment of the utility model heat exchange water tank;

[0024] Figure 2 for Figure 1 sectional view of

[0025] Figure 3 This is an assembly diagram of the first heat exchange tube and the second heat exchange tube in an embodiment of the water exchange water tank of the present invention;

[0026] Figure 4 for Figure 3 Top view

[0027] Figure 5 This is a schematic structural diagram of the first heat exchange tube in an embodiment of the water exchange tank of the present utility model;

[0028] Figure 6 This is a structural diagram of the second heat exchange tube in an embodiment of the water exchange tank of the present utility model;

[0029] Figure 7 It is a structural diagram of the prior art.

[0030] Description of reference numerals:

[0031] 100, liner;

[0032] 101, cylinder;

[0033] 102. Head sealing;

[0034] 103. Liquid inlet;

[0035] 104. Liquid outlet;

[0036] 105. Observation port;

[0037] 200, first heat exchange tube;

[0038] 201, first medium inlet;

[0039] 202. First medium outlet;

[0040] 203, first horizontal section;

[0041] 204, first inclined section;

[0042] 300, second heat exchange tube;

[0043] 301, second medium inlet;

[0044] 302, second medium outlet;

[0045] 303, second horizontal section;

[0046] 304, second inclined section

[0047] 4. Coil. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0053] A heat exchanger tank is a hot water supply device that is usually used in conjunction with other heat sources such as wall-mounted boilers and solar energy. It can store hot water, keep it warm and provide a buffer to ensure sufficient hot water supply.

[0054] like Figures 1 to 6 As shown, this embodiment provides a water exchange tank, including an inner tank 100, a first heat exchange tube 200 and a second heat exchange tube 300. The inner tank 100 is used to provide a heat exchange space, and the first heat exchange tube 200 and the second heat exchange tube 300 are used to heat and keep the water in the inner tank 100 warm.

[0055] The inner tank 100 includes a cylinder 101 and upper and lower ends 102. Since hot water will flow upward and cold water will flow downward when the water exchange tank is heating, the liquid inlet 103 is set near the bottom of the inner tank 100, and the liquid outlet 104 is set near the top of the inner tank 100. The liquid inlet 103 is connected to the water source, and the liquid outlet 104 is connected to the pipe for outputting hot water.

[0056] The first heat exchange tube 200 is disposed in the inner tank 100 in a surrounding manner. The first heat exchange tube 200 includes a first horizontal section 203 and a first inclined section 204 . An angle is formed between the bottom of the first horizontal section 203 and the first inclined section 204 .

[0057] The second heat exchange tube 300 is arranged in a surrounding manner in the inner tank 100, and the second heat exchange tube 300 is located on the inner side of the surrounding first heat exchange tube 200. The second heat exchange tube 300 includes a second horizontal section 303 and a second inclined section 304, and an angle is also formed between the bottom of the second horizontal section 303 and the second inclined section 304.

[0058] The first heat exchange tube 200 and the second heat exchange tube 300 are both used to heat the water in the inner tank 100 , and the purpose of heating the water is achieved by using the high-temperature medium inside the tube to exchange heat with the water in the inner tank 100 .

[0059] During use, the first heat exchange tube 200 and the second heat exchange tube 300 are connected to an external heat source such as a wall-mounted boiler or solar energy. The external heat source provides hot water to the first heat exchange tube 200 and the second heat exchange tube 300. The first ring two tubes and the second heat exchange tube 300 heat and keep the water in the inner tank 100 warm.

[0060] like Figure 5 、 Figure 6 As shown, the first heat exchange tube 200 is provided with a first medium inlet 201 and a first medium outlet 202, and the second heat exchange tube 300 is provided with a second medium inlet 301 and a second medium outlet 302. The first medium inlet 201, the first medium outlet 202, the second medium inlet 301 and the second medium outlet 302 are all located outside the inner tank 100. When assembling the heat exchange water tank, the tube walls at the first medium inlet 201 and the first medium outlet 202, and the tube walls at the second medium inlet 301 and the second medium outlet 302 are respectively welded to the inner tank 100.

[0061] The medium inlet and medium outlet of the first heat exchange tube 200 and the second heat exchange tube 300 are two sets of separate settings, which makes it easy for the first heat exchange tube 200 and the second heat exchange tube 300 to be connected to external heat sources respectively, avoiding the situation where a single heat source does not provide enough heat.

[0062] like Figure 2 、 Figure 3 As shown, the height of the second heat exchange tube 300 is set higher than the height of the first heat exchange tube 200. Therefore, the second medium outlet 302, the first medium outlet 202, the first medium inlet 201 and the second medium inlet 301 are provided on the side wall of the inner tank 100 from top to bottom. This arrangement makes it easy to prevent the welding gun from interfering with the tube walls at the first medium inlet 201 and the first medium outlet 202, and the tube walls at the second medium inlet 301 and the second medium outlet 302 during welding, thereby improving the quality of welding and thus improving the reliability of the heat exchange water tank.

[0063] like Figure 5 、 Figure 6As shown, the angles formed between the bottom of the first horizontal section 203 and the first inclined section 204, as well as the angles formed between the bottom of the second horizontal section 303 and the second inclined section 304, are both 30°. Based on multiple experiments, a 30° angle is the optimal choice. This angle not only ensures that the space occupied by the first and second heat exchange tubes 200 and 300 is small, thereby reducing the space occupied by the water exchange tank and facilitating installation and use, but also maximizes the length of the first and second heat exchange tubes 200 and 300, increasing the heat exchange area and thus improving heat exchange efficiency. Furthermore, the angle places the lowest end of the second inclined section close to the bottom header 102 of the inner tank 100. This arrangement increases the heat exchange area and heats the water at the bottom header 102 of the inner tank 100.

[0064] The first heat exchange tube 200 and the second heat exchange tube 300 are both spiral coils made of carbon steel. Carbon steel has good thermal conductivity and can effectively improve the heat exchange efficiency. The spiral coils can increase the length of the first heat exchange tube 200 and the second heat exchange tube 300 as much as possible within the effective space, which can effectively increase the heat exchange area and effectively improve the heat exchange efficiency.

[0065] The outer tube walls of the first heat exchange tube 200 and the second heat exchange tube 300 are coated with an anti-corrosion coating. In this embodiment, the outer tube walls of the first heat exchange tube 200 and the second heat exchange tube 300 are entirely enameled to facilitate corrosion protection of the first heat exchange tube 200 and the second heat exchange tube 300 in water and increase their service life.

[0066] There is a gap between the first heat exchange tube 200 and the second heat exchange tube 300. Taking the tube diameter of the first heat exchange tube 200 and the second heat exchange tube 300 as 33.7 mm as an example, the spacing between the first heat exchange tube 200 and the second heat exchange tube 300 needs to be greater than 25 mm so that the glaze will not adhere when the enamel layer is coated on the first heat exchange tube 200 and the second heat exchange tube 300, thereby ensuring that the overall enamel is free of defects.

[0067] like Figure 1 、 Figure 2 As shown, the inner tank 100 is also provided with an observation port 105. The observation port 105 is located near the bottom of the cylinder 101 of the inner tank 100. After long-term use, scale, dust and other substances may accumulate at the bottom of the inner tank 100 after the water exchange tank is used. The user can observe the interior of the inner tank 100 through the observation port 105 and clean the interior of the inner tank 100 if scale is accumulated. An auxiliary heating source can also be connected to the observation port 105 to cooperate with the first heat exchange tube 200 and the second heat exchange tube 300 to heat the water in the inner tank 100, further improving the heat exchange efficiency.

[0068] The heat exchanger tank also includes an outer shell and an insulation layer, which is disposed between the inner liner 100 and the outer shell. The outer shell is typically made of plastic to meet diverse design requirements for aesthetics and protect the inner liner 100. The inner liner 100 can be made of either metal or plastic, depending on the application. Common materials for the insulation layer include sponge, foamed plastic, and polyurethane foam. Polyurethane foam is commonly used to form the insulation layer, providing excellent thermal insulation.

[0069] The water exchange water tank described above can be a vertical water tank structure, a horizontal water tank structure, or a wall-mounted water tank structure, and has a wide range of applicability.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A water exchange tank, characterized in that: include: An inner tank, which is provided with a liquid outlet and a liquid inlet; A first heat exchange tube, which is disposed in the inner tank in a surrounding manner, wherein the first heat exchange tube comprises a first horizontal section and a first inclined section, and an angle is formed between the bottom of the first horizontal section and the first inclined section; A second heat exchange tube, which is disposed in the inner tank and is disposed inside the first heat exchange tube, the second heat exchange tube comprising a second horizontal section and a second inclined section, and an angle is formed between the bottom of the second horizontal section and the second inclined section; The first heat exchange tube and the second heat exchange tube are both configured to heat and keep the liquid in the inner tank warm.

2. The water exchange tank according to claim 1, characterized in that: The first heat exchange tube is provided with a first medium inlet and a first medium outlet, the second heat exchange tube is provided with a second medium inlet and a second medium outlet, and the first medium inlet, the first medium outlet, the second medium inlet and the second medium outlet are all located outside the inner tank.

3. The water exchange tank according to claim 2, characterized in that: The height of the second heat exchange tube is higher than that of the first heat exchange tube.

4. The water exchange tank according to claim 1, characterized in that: The angle formed between the bottom of the first horizontal section and the first inclined section and the angle formed between the bottom of the second horizontal section and the second inclined section are both 30°.

5. The water exchange tank according to claim 1, characterized in that: The first heat exchange tube and the second heat exchange tube are both spiral coils.

6. The water exchange tank according to claim 1, characterized in that: An anti-corrosion coating is provided on the tube walls of the first heat exchange tube and the second heat exchange tube.

7. The water exchange tank according to claim 1, characterized in that: There is a gap between the first heat exchange tube and the second heat exchange tube.

8. The water exchange tank according to claim 1, characterized in that: The inner container is also provided with an observation port, and the observation port is configured to observe the internal conditions of the inner container and / or an external auxiliary heating source.

9. The water exchange tank according to any one of claims 1 to 8, characterized in that: The water exchange water tank further comprises an outer shell and a heat-insulating layer, wherein the heat-insulating layer is arranged between the inner tank and the outer shell.

10. The water exchange tank according to claim 9, characterized in that: The water exchange water tank is a vertical water tank, a horizontal water tank and a wall-mounted water tank.

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