A simple water distribution structure for a thermal storage electric boiler

By incorporating a 45-degree angled water supply pipe, a vortex motion design, and a well-designed return water pipe layout, the problem of the single-function supply and return water system of the thermal regenerator was solved. This achieved temperature stratification and energy-saving effects, improving the safety and energy efficiency of the equipment.

CN224434711UActive Publication Date: 2026-06-30INNER MONGOLIA ZHONGRAN ENERGY STORAGE EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA ZHONGRAN ENERGY STORAGE EQUIPMENT CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-30

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Abstract

This utility model discloses a simple water distribution structure for a thermal storage electric boiler, relating to the technical field of thermal storage electric boilers. The utility model includes a tank, a water supply pipe, a support pipe, and a return pipe. The water supply pipe enters the tank, first extending vertically upwards and then horizontally, parallel to the tank body, with its end cut at a 45-degree angle. The return pipe enters the tank, extends vertically downwards, and is located directly below the water supply pipe. The support pipe is used to fix the relative positions of the water supply and return pipes. All components are connected by welding. The horizontal section of the water supply pipe is parallel to the inner wall of the tank, with the 45-degree angle facing the inner wall, causing the fluid to form a vortex motion along the inner wall after being ejected. This utility model, through the 45-degree angled water supply pipe and vortex motion design, specifically utilizes fluid mechanics principles to create a stable vortex within the tank, achieving temperature stratification: an upper layer of 95 degrees Celsius, middle layers of 75, 65, and 55 degrees Celsius, and a lower layer of 35 degrees Celsius. Simultaneously, it breaks up large air bubbles, reducing system losses.
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Description

Technical Field

[0001] This utility model belongs to the technical field of thermal storage electric boilers, and in particular relates to a simple water distribution structure for thermal storage electric boilers. Background Technology

[0002] Existing thermal regenerators on the market have limited water supply and return functions, only meeting basic water supply and return needs. Users encounter problems with traditional methods, such as indistinct temperature stratification, increased air bubbles within the tank, and lack of energy efficiency. Furthermore, excessive pressure can easily lead to injury and pose safety hazards. Therefore, a simplified water distribution structure for thermal regenerator electric boilers is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a simple water distribution structure for a thermal storage electric boiler. By incorporating a 45-degree angled water supply pipe and a vortex motion design, specifically utilizing fluid dynamics principles, a stable vortex is created within the tank, achieving temperature stratification: an upper layer of 95 degrees Celsius, middle layers of 75, 65, and 55 degrees Celsius, and a lower layer of 35 degrees Celsius. Simultaneously, large air bubbles are broken up, reducing system losses. This addresses the problem of existing thermal storage boilers on the market having limited functionality, only meeting basic water supply and return requirements. Users of traditional methods experience problems such as unclear temperature stratification, increased air bubbles within the tank, lack of energy-saving effects, and excessive pressure that can lead to injury and safety hazards.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a simple water distribution structure for a thermal storage electric boiler, comprising a tank, a water supply pipe, a support pipe, and a return pipe. The water supply pipe enters the tank, extends vertically upwards, then horizontally, parallel to the tank, and is cut at the end at a 45-degree angle. The return pipe enters the tank, extends vertically downwards, and is located directly below the water supply pipe. The support pipe is used to fix the relative positions of the water supply pipe and the return pipe. All components are connected by welding.

[0006] Furthermore, the horizontal section of the water supply pipe is parallel to the inner wall of the tank, and the 45-degree angled opening faces the inner wall of the tank, so that the fluid forms a vortex motion along the inner wall after it is ejected.

[0007] Furthermore, the vertical section of the return water pipe extends to the lower part of the tank, with the pipe opening facing the bottom of the tank, ensuring that the return water directly enters the lower low-temperature zone.

[0008] Furthermore, the two ends of the support pipe are welded to the horizontal section of the water supply pipe and the vertical section of the return water pipe, respectively, to form a triangular stable structure and enhance the load-bearing capacity of the pipeline system.

[0009] Furthermore, the connection between the tank and the water supply pipe and return pipe is fully welded to prevent fluid leakage and improve the overall structural strength.

[0010] Furthermore, the 45-degree bevel angle deviation of the water supply pipe does not exceed ±5 degrees to ensure the stability of the vortex motion.

[0011] Furthermore, the diameter of the return water pipe is 0.8 to 1.2 times that of the supply water pipe, to meet the fluid circulation flow requirements.

[0012] Furthermore, the material of the support pipe is the same as that of the tank body, water supply pipe, and return water pipe, all of which are made of high-temperature and corrosion-resistant steel.

[0013] This utility model has the following beneficial effects:

[0014] This utility model utilizes a 45-degree angled water supply pipe and a vortex motion design to create a stable vortex within the tank, achieving temperature stratification: an upper layer of 95 degrees Celsius, middle layers of 75, 65, and 55 degrees Celsius, and a lower layer of 35 degrees Celsius. Simultaneously, it breaks up large air bubbles, reducing system losses.

[0015] This utility model, by setting up an upper and lower corresponding layout of the return water pipe and the supply water pipe, specifically ensures that the low-temperature fluid is circulated and heated during heat storage and that the high-temperature fluid is output first during heat release, thereby improving energy utilization efficiency, reducing heating energy consumption, and enhancing equipment safety through the welded structure and support design.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is a bottom view of this utility model;

[0020] Figure 3 is a schematic diagram of temperature stratification of this utility model;

[0021] Figure 4 is a schematic diagram of the heat storage process of this utility model;

[0022] Figure 5 is a schematic diagram of the heat release process of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Tank body; 2. Water supply pipe; 3. Support pipe; 4. Return water pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 As shown, this utility model is a simple water distribution structure for a thermal storage electric boiler, including a tank body 1, a water supply pipe 2, a support pipe 3, and a return water pipe 4. After entering the tank body 1, the water supply pipe 2 first extends vertically upward and then horizontally, parallel to the tank body 1, with the end cut at a 45° bevel. After entering the tank body 1, the return water pipe 4 extends vertically downward and is located directly below the water supply pipe 2. The support pipe 3 is used to fix the relative positions of the water supply pipe 2 and the return water pipe 4. All components are connected by welding.

[0027] The horizontal section of the water supply pipe 2 is parallel to the inner wall of the tank 1, and the 45° angled opening faces the inner wall of the tank 1, so that the fluid forms a vortex motion along the inner wall after it is ejected.

[0028] The vertical section of the return water pipe 4 extends to the lower part of the tank 1, with the pipe opening facing the bottom of the tank 1, ensuring that the return water directly enters the lower low-temperature zone.

[0029] The two ends of the support pipe 3 are welded to the horizontal section of the water supply pipe 2 and the vertical section of the return water pipe 4, respectively, to form a triangular stable structure and enhance the load-bearing capacity of the pipeline system.

[0030] The connection between tank 1 and water supply pipe 2 and return pipe 4 is fully welded and sealed to prevent fluid leakage and improve the overall structural strength.

[0031] The 45° bevel angle deviation of water supply pipe 2 shall not exceed ±5° to ensure the stability of vortex motion.

[0032] The diameter of the return water pipe 4 is 0.8-1.2 times that of the supply water pipe 2, which is suitable for the fluid circulation flow rate requirements.

[0033] The material of the support pipe 3 is the same as that of the tank body 1, the water supply pipe 2, and the return water pipe 4, all of which are made of high-temperature and corrosion-resistant steel.

[0034] One specific application of this embodiment is as follows: During the heat storage process, the fluid enters the tank 1 through the water supply pipe 2, flows through the vertical section and then along the horizontal section. Due to the increased resistance, the flow rate slows down. After being sprayed out from the 45° angled nozzle, it makes a downward vortex motion along the inner wall of the tank 1, so that the fluids of different temperatures are layered, with the upper layer being high temperature and the lower layer being low temperature. At the same time, large bubbles are broken. The low temperature fluid at the bottom of the tank 1 enters the external heating device through the return water pipe 4, is heated, and then returns to the tank 1 through the water supply pipe 2, forming a heat storage cycle.

[0035] During the heat release process, the high-temperature fluid in the upper part of the tank 1 is supplied through the water supply pipe 2, and the return water enters the lower part of the tank 1 through the return water pipe 4, ensuring that the fluid supplied to the user is always high-temperature fluid to meet the heating demand.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A simple water distribution structure for a thermal storage electric boiler, comprising a tank (1), a water supply pipe (2), a support pipe (3), and a return water pipe (4), characterized in that: After the water supply pipe (2) enters the tank (1), it first extends vertically upward and then horizontally, parallel to the tank. The end is cut at a 45° angle. After the return water pipe (4) enters the tank (1), it extends vertically downward and is located directly below the water supply pipe (2). The support pipe (3) is used to fix the relative positions of the water supply pipe (2) and the return water pipe (4). All components are connected by welding.

2. The simplified water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The horizontal section of the water supply pipe (2) is parallel to the inner wall of the tank (1), and the 45° angled opening faces the inner wall of the tank (1), so that the fluid forms a vortex motion along the inner wall after it is ejected.

3. The simplified water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The vertical section of the return water pipe (4) extends to the lower part of the tank (1), with the pipe opening facing the bottom of the tank (1), ensuring that the return water directly enters the lower low-temperature zone.

4. The simplified water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The two ends of the support pipe (3) are welded to the horizontal section of the water supply pipe (2) and the vertical section of the return water pipe (4) respectively, forming a triangular stable structure to enhance the load-bearing capacity of the pipeline system.

5. A simple water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The connection between the tank (1) and the water supply pipe (2) and the return pipe (4) is fully welded to prevent fluid leakage and improve the overall structural strength.

6. A simplified water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The 45° bevel angle deviation of the water supply pipe (2) shall not exceed ±5° to ensure the stability of the vortex motion.

7. A simple water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The diameter of the return water pipe (4) is 0.8-1.2 times that of the supply water pipe (2), which is suitable for the fluid circulation flow rate requirements.

8. A simple water distribution structure for a thermal storage electric boiler according to claim 1, characterized in that, The material of the support pipe (3) is the same as that of the tank body (1), water supply pipe (2), and return water pipe (4), all of which are made of high-temperature and corrosion-resistant steel.