A temperature stratification device for hot water storage tank

By setting up a multi-layer water storage network inside the water tank, heat exchange and stratified storage of cold and hot water are achieved, solving the problem of hot water layer disturbance during solar water heater replenishment and improving the utilization rate of hot water.

CN224284971UActive Publication Date: 2026-05-26王兰顺

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
王兰顺
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

When replenishing water in a solar water heater tank, the direct injection of cold water disrupts the hot water layer, affecting the utilization rate of hot water, and the stagnant hot water is not fully utilized.

Method used

A multi-layered interconnected water storage network is installed inside the water tank. Cold water exchanges heat with hot water through the water storage network to raise its temperature and be used, preventing cold water from directly entering the hot water layer and ensuring the stability of the water layer stratification.

Benefits of technology

This improves the utilization rate of hot water, avoids cold water from disturbing the hot water layer, and ensures normal use.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224284971U_ABST
    Figure CN224284971U_ABST
Patent Text Reader

Abstract

This utility model discloses a temperature stratification device for a hot water storage tank, including a water tank with multiple layers of water storage pipes inside. One end of the water storage pipe at the beginning of the upper layer is connected to a second inlet pipe, and one end of the water storage pipe at the end of the lower layer is connected to a second outlet pipe. The horizontally arranged multiple interconnected water storage pipes within the water tank not only store water but also allow cold water to be injected into the pipes. This cold water exchanges heat with the hot water in the tank, raising its temperature before being directed elsewhere for use. This ensures that the hot water in the tank is fully utilized even when it is stagnant, improving the utilization rate of hot water. Furthermore, the device obstructs water flow, achieving a stratification effect and preventing cold water from directly disturbing the water layers during filling, thus ensuring normal use.
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Description

Technical Field

[0001] This utility model belongs to the technical field of hot water storage tanks, and in particular relates to a temperature stratification device for hot water storage tanks. Background Technology

[0002] Solar water heaters primarily rely on collector tubes to convert solar energy into heat energy. They utilize the principle of hot water rising and cold water sinking to create a micro-circulation, heating the water in the tank from a low temperature to a high temperature to meet daily needs. When the water level in the tank drops to a certain height, the system automatically injects cold water directly into the tank through a water supply pipe, disrupting the water layer and rapidly cooling the previously hot water. This results in the hot water not being fully utilized, becoming lukewarm or even cold, affecting normal use. Conversely, when the hot water in the tank is not in use, it remains stagnant, also not being fully utilized, thus reducing the overall efficiency of hot water supply. Utility Model Content

[0003] To address the above problems, this utility model provides a temperature stratification device for hot water storage tanks.

[0004] This utility model is implemented as follows: A temperature stratification device for a hot water storage tank includes a water tank. A first inlet pipe is provided at the lower part of one side of the water tank, through which cold water enters the water tank for replenishment. A first outlet pipe is provided at the lower middle part of the other side of the water tank, and a first shut-off valve is provided on the first outlet pipe. When the first shut-off valve is opened, the hot water in the water tank is discharged through the first outlet pipe. Multiple layers of water storage pipes are horizontally and evenly arranged inside the water tank between the first inlet pipe and the first outlet pipe. This network can both store water and allow cold water to be injected into it, where it exchanges heat with the hot water in the water tank, raising its temperature before being directed elsewhere for use. It can also obstruct water flow, preventing cold water from directly disturbing the water layer when the water tank is being filled. The water storage pipe network consists of multiple... The system consists of parallel water storage pipes, with their ends continuously connected together. One end of the water storage pipe at the end of the upper layer is connected to one end of the water storage pipe at the beginning of the lower layer, ensuring smooth water flow. A second inlet pipe is tightly installed through the lower part of the side wall of the water tank. One end of the water storage pipe at the beginning of the upper layer is connected to the second inlet pipe. A second shut-off valve is installed on the second inlet pipe. When the second shut-off valve is opened, cold water flows into the water storage network along the second inlet pipe. A second outlet pipe is tightly installed through the lower part of the side wall of the water tank. One end of the water storage pipe at the end of the lower layer is connected to the second outlet pipe. A third shut-off valve is installed on the second outlet pipe. When the third shut-off valve is opened, hot water in the water storage network is discharged through the second outlet pipe for use.

[0005] Preferably, the water storage network is fixedly connected to the inner wall of the water tank to ensure the stability and reliability of the position of the water storage network in the water tank.

[0006] Preferably, the spacing between water storage pipes in the same layer is 1cm to 2cm, and the spacing between water storage pipe networks in upper and lower layers is 2cm to 3cm. This ensures that the structure between the water storage pipes is tight, which not only increases the water storage capacity of the water storage network, but also improves the blocking effect on water flow, thus achieving a layered effect and preventing the injected cold water from disturbing the water layer.

[0007] Preferably, the distance between the water storage pipe located at the outer edge of the water storage network and the inner wall of the water tank is 1cm to 2cm to reduce the gap.

[0008] Preferably, the water storage network is made of stainless steel, which is sturdy, durable, resistant to rust, and has good thermal conductivity.

[0009] The beneficial effects of this utility model are as follows: The water tank is horizontally equipped with a multi-layered interconnected water storage pipe network, which can store water. When cold water is injected into the water storage pipe network, it exchanges heat with the hot water in the water tank, thereby raising the temperature and diverting it elsewhere for use. This ensures that the hot water in the water tank is fully utilized even when it is stagnant, improving the utilization rate of hot water. It can also block the water flow, achieving a stratification effect, preventing the cold water directly injected into the water tank from disturbing the water layer, and ensuring normal use by people. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a top view of the internal structure of the water tank.

[0012] In the diagram: 1. Water tank; 2. First inlet pipe; 3. First outlet pipe; 4. First shut-off valve; 5. Water storage network; 6. Water storage pipe; 7. Second inlet pipe; 8. Second shut-off valve; 9. Second outlet pipe; 10. Third shut-off valve. Detailed Implementation

[0013] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0014] like Figure 1 and Figure 2The illustrated hot water storage tank temperature stratification device includes a water tank 1. A first inlet pipe 2 is located at the lower part of one side of the water tank 1, through which cold water enters the water tank 1 for replenishment. A first outlet pipe 3 is located at the lower middle part of the other side of the water tank 1, and a first shut-off valve 4 is installed on the first outlet pipe 3. When the first shut-off valve 4 is opened, hot water in the water tank 1 is discharged through the first outlet pipe 3. Multiple layers of water storage pipe network 5 are horizontally and evenly arranged inside the water tank 1 between the first inlet pipe 2 and the first outlet pipe 3. The water storage pipe network 5 is made of stainless steel, which is sturdy, durable, rust-resistant, and has good thermal conductivity. The water storage pipe network 5 is fixedly connected to the inner wall of the water tank 1, ensuring the stability and reliability of the position of the water storage pipe network 5 within the water tank 1. It can store water, allowing cold water to be injected into the water storage network 5. This cold water exchanges heat with the hot water in the water tank 1, raising its temperature before being channeled elsewhere. It can also block water flow, preventing cold water from directly disturbing the water layer when the water tank 1 is being filled. The water storage network 5 consists of multiple parallel water storage pipes 6, whose ends are continuously connected. One end of the water storage pipe 6 at the end of the upper layer of the water storage network 5 is connected to one end of the water storage pipe 6 at the beginning of the lower layer of the water storage network 5. This ensures smooth water flow, passing through the lower part of the side wall of the water tank 1. A second water inlet pipe 7 is tightly installed. One end of the water storage pipe 6 at the beginning of the upper water storage network 5 is connected to the second water inlet pipe 7. A second shut-off valve 8 is installed on the second water inlet pipe 7. When the second shut-off valve 8 is opened, cold water flows into the water storage network 5 along the second water inlet pipe 7. A second water outlet pipe 9 is tightly installed through the lower part of the side wall of the water tank 1. One end of the water storage pipe 6 at the end of the lower water storage network 5 is connected to the second water outlet pipe 9. A third shut-off valve 10 is installed on the second water outlet pipe 9. When the third shut-off valve 10 is opened, hot water in the water storage network 5 is discharged along the second water outlet pipe 9 for use.

[0015] The spacing between water storage pipes 6 in the same layer is 1.5cm, and the spacing between water storage networks 5 in upper and lower layers is 2.5cm. This ensures a tight structure between the water storage pipes 6, which increases the water storage capacity of the water storage network 5 and improves the blocking effect on water flow, achieving a stratified effect and preventing the injected cold water from disturbing the water layer. The spacing between the water storage pipes 6 located on the outer edge of the water storage network 5 and the inner wall of the water tank 1 is 1.5cm to reduce the gap.

[0016] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A temperature stratification device for a hot water storage tank, comprising a water tank, wherein a first inlet pipe is provided at the lower part of one side of the water tank, and a first outlet pipe is provided at the lower middle part of the other side of the water tank, and a first shut-off valve is provided on the first outlet pipe, characterized in that, A multi-layered water storage network is horizontally and evenly arranged inside the water tank located between the first inlet pipe and the first outlet pipe. The water storage network consists of multiple parallel water storage pipes, the ends of which are continuously connected together. One end of the water storage pipe at the end of the upper layer is connected to one end of the water storage pipe at the beginning of the lower layer. A second inlet pipe is tightly arranged through the lower middle part of the side wall of the water tank. One end of the water storage pipe at the beginning of the upper layer is connected to the second inlet pipe. A second shut-off valve is installed on the second inlet pipe. A second outlet pipe is tightly arranged through the lower part of the side wall of the water tank. One end of the water storage pipe at the end of the lower layer is connected to the second outlet pipe. A third shut-off valve is installed on the second outlet pipe.

2. The temperature stratification device for a hot water storage tank according to claim 1, characterized in that, The water storage pipeline is fixedly connected to the inner wall of the water tank.

3. The temperature stratification device for a hot water storage tank according to claim 1, characterized in that, The spacing between water storage pipes on the same floor is 1cm to 2cm, and the spacing between water storage pipe networks on upper and lower floors is 2cm to 3cm.

4. A temperature stratification device for a hot water storage tank according to claim 1, characterized in that, The distance between the water storage pipe located on the outer edge of the water storage network and the inner wall of the water tank is 1cm to 2cm.

5. A temperature stratification device for a hot water storage tank according to claim 1, characterized in that, The water storage pipeline is made of stainless steel.