非同程并联式水箱的流量自平衡系统

By introducing a buffer tank and piping components into a non-parallel water tank system, the water flow is automatically adjusted using pressure difference, which solves the problem of unstable water pressure in the water pump, achieves stability of the water pump outlet flow and system safety, and adapts to stable operation under complex working conditions.

CN224514315UActive Publication Date: 2026-07-17CHINA TOBACCO ZHEJIANG IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO ZHEJIANG IND CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In non-parallel water tank systems, the water pump will preferentially draw water from the nearest water tank, resulting in unbalanced water flow and unstable water pressure. Especially when the boiler combustion demand changes, the existing system's switching capability is insufficient, leading to extremely unstable water pressure in the water pump, which poses safety hazards and boiler surge.

Method used

Design a flow self-balancing system including a buffer tank and piping components. By connecting the buffer tank and the circulating tank, the water flow is automatically adjusted using the pressure difference to ensure a stable pump outlet flow. The system is equipped with a level gauge and a controller for intelligent control to achieve adaptive flow balance.

Benefits of technology

It achieves stable pump outlet flow under various operating conditions, ensuring the safe and stable operation of the water tank system, avoiding water pressure fluctuations and boiler surge, and improving the system's automatic adjustment capability.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请涉及的非同程并联式水箱的流量自平衡系统,包括水泵、缓冲水箱和至少两个并联设置且相互连通的循环水箱,循环水箱用于储存水。水泵的出水端分别与入户水管和循环水箱相连通,以分别用于向用户供水及用于向循环水箱回水。缓冲水箱设有与水泵的进水端相连通的排水口,且缓冲水箱还设有与水泵的出水端相连通的第一入水口及与循环水箱相连通的第二入水口。当循环水箱的出口流量总和大于水泵的出口流量额定值时,循环水箱中的部分水会流向缓冲水箱,当出口流量总和小于水泵的出口流量额定值时,缓冲水箱中的水会向水泵进行补充,以使水泵的出口流量总是趋于稳定,从而提高了流量自平衡系统应对不同工况的稳定性。
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Claims

1. A flow self-balancing system for a non- homopolar parallel water tank, characterized in that, include: At least two parallel and interconnected circulating water tanks (10) are used for storing water; The water pump (20) is connected to the household water pipe and the circulating water tank (10) respectively, so as to supply water to the user and return water to the circulating water tank (10); The buffer water tank (30) is provided with a drain outlet connected to the water inlet of the water pump (20), and the buffer water tank (30) is also provided with a first water inlet connected to the water outlet of the water pump (20) and a second water inlet connected to the circulating water tank (10).

2. The flow self-balancing system of claim 1, wherein, The volume of the buffer tank (30) is greater than the volume of any of the circulating tanks (10).

3. The flow self-balancing system of claim 1, wherein, The flow self-balancing system (1) further includes a pipe assembly (40), which includes a balancing pipe (41) for balancing the pressure difference between the buffer tank (30) and the circulating tank (10), and the buffer tank (30) is connected to each of the circulating tanks (10) through the balancing pipe (41).

4. The flow self-balancing system of claim 3, wherein, The pipeline assembly (40) further includes a water supply branch pipeline (42), a water supply main pipeline (43), and a return branch pipeline (44). The outlet of each of the circulating water tanks (10) is connected to the water supply main pipeline (43) through the corresponding water supply branch pipeline (42). The outlet of the water supply main pipeline (43) is connected to the inlet of the water pump (20). The outlet of the water pump (20) is connected to the inlet of each of the circulating water tanks (10) through the return branch pipeline (44). In the circulating water tank (10), the port connected to the balance pipe (41) is higher than the outlet connected to the water supply branch pipe (42).

5. The flow self-balancing system of claim 4, wherein, The water pump (20) is arranged close to the buffer tank (30).

6. The flow self-balancing system of claim 5, wherein, Each of the circulating water tanks (10) forms a circulating system (101), and the circulating water tanks (10) are arranged at intervals along a first direction. In the first direction, the buffer water tank (30) is located between the circulating system (101) and the water pump (20).

7. The flow self-balancing system of claim 5, wherein, The pipeline assembly (40) also includes a return branch pipeline (45) connecting the water pump (20) and the buffer water tank (30), and the return branch pipeline (45) is provided with a return valve (31) for controlling the flow rate of the return water flowing into the buffer water tank (30).

8. The flow self-balancing system according to any one of claims 1 to 7, characterized in that, The buffer tank (30) is equipped with a level gauge (32) for detecting the amount of water in the buffer tank (30).

9. The flow self-balancing system according to claim 8, characterized in that, The buffer tank (30) also has a water supply end for water replenishment. The flow self-balancing system (1) also includes a water supply pipe connected to the water supply end and a water supply valve (33) provided on the water supply pipe. The water supply valve (33) is used to control the opening and closing of the water supply pipe.

10. The flow self-balancing system of claim 9, wherein, The flow self-balancing system (1) also includes a controller (50), which is communicatively connected to the level gauge (32) and is used to control the opening and closing of the water supply valve (33) according to the signal from the level gauge (32).