Anti-overflow device of fire water tank for high-rise building
By installing a liquid level sensor, a float linkage system, and related control equipment in the fire water tank, the problem of fire water tank overflow was solved, enabling accurate monitoring and control of the water level, preventing overflow, and improving the practicality and service life of the device.
Patent Information
- Application Number
- CN202520581776.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing fire water tanks are prone to overflow when the water inlet control components malfunction, leading to water waste and threats to building structural safety, and existing patents have failed to effectively solve this problem.
It employs multiple sets of liquid level sensors and a float linkage system, combined with a variable frequency water pump, electric valve, and controller, to achieve precise monitoring and control of the water level. It is equipped with a filter plate to prevent impurities from affecting the system, an insulation layer to maintain the water temperature, and a shock-absorbing pad to reduce the impact of vibration.
It enables real-time and accurate feedback of water levels, preventing overflows, reducing water waste, ensuring building safety, and improving the practicality and service life of the device.
Smart Images

Figure CN223951870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection equipment, and more specifically, to an anti-overflow device for fire water tanks in high-rise buildings. Background Technology
[0002] In the fire protection system of high-rise buildings, fire water tanks play a crucial role in storing water for initial fire suppression.
[0003] A search revealed an existing patent (publication number: CN 213709725 U) that discloses an overflow prevention device for fire water tanks in high-rise buildings. The device includes a transfer water tank and an inlet pipe. One end of the inlet pipe is connected to a transfer water pump, and the other end is connected to the transfer water tank. A float valve is connected to the end of the inlet pipe inside the transfer water tank. A bypass pipe is connected to the inlet pipe, and the other end of the bypass pipe is connected to the transfer water tank. The inner diameter of the bypass pipe is smaller than the inner diameter of the inlet pipe. This invention is novel in design and highly applicable. This overflow prevention device can effectively reduce the overflow of the transfer water tank during firefighting operations, preventing damage to the tank and equipment caused by excessive water pressure. It has strong applicability and is suitable for further promotion and application.
[0004] When existing fire water tanks malfunction in their inlet control components, they are prone to overflow, which not only wastes water resources but also seriously threatens the structural safety of buildings. Overflowing water may also affect the stability of the building foundation, resulting in certain limitations in their use. Furthermore, the aforementioned patent documents do not propose any solutions to address these issues.
[0005] Therefore, an overflow prevention device for fire water tanks in high-rise buildings is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an anti-overflow device for fire water tanks in high-rise buildings to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-overflow device for fire water tanks in high-rise buildings, comprising a fire water tank body, wherein a liquid level sensor is fixedly installed on the inner wall of the fire water tank body, wherein three sets of liquid level sensors are arranged longitudinally, and a connecting rod is fixedly installed on one side of the liquid level sensor, and a float is fixedly installed on one side of each connecting rod.
[0008] Preferably, a water inlet pipe is provided on one side of the exterior of the fire water tank body, a variable frequency water pump is provided on one side of the water inlet pipe, and a filter plate is fitted inside the water inlet pipe.
[0009] Preferably, an overflow prevention pipe is fixedly installed on one side of the exterior of the fire water tank body, an electric valve is installed on one side of the overflow prevention pipe, and the height of the overflow prevention pipe is higher than that of the inlet pipe.
[0010] Preferably, an outlet pipe is fixedly installed on one side of the exterior of the fire water tank body, and a controller is fixedly installed at one end of the inlet pipe.
[0011] Preferably, the bottom of the fire water tank body is connected to a shock-absorbing pad via a support column, and several sets of the shock-absorbing pad are provided. Furthermore, an insulation layer is fixedly installed on the inner wall of the fire water tank body.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] Compared with existing technologies, this anti-overflow device for fire water tanks in high-rise buildings, by installing multiple sets of liquid level sensors at different heights, can provide real-time and accurate feedback on the water level range within the tank. It can promptly remind management personnel that the water level is about to reach the upper limit, so that the water inlet speed can be adjusted in advance to prevent the water level from rising too quickly. When the water level changes slowly, it can more delicately present the trend of water level changes, allowing management personnel to have a clearer understanding of the water inlet and water usage of the tank, thereby enhancing the practicality of the device. Attached Figure Description
[0014] Fig. 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Fig. 2 This is an enlarged schematic diagram of the structure at point A of this utility model.
[0016] Fig. 3 This is a schematic diagram of the location and structure of the insulation layer of this utility model.
[0017] The attached diagram is labeled as follows: 1. Fire water tank body; 2. Inlet pipe; 3. Outlet pipe; 4. Variable frequency water pump; 5. Filter plate; 6. Overflow prevention pipe; 7. Electric valve; 8. Controller; 9. Liquid level sensor; 10. Connecting rod; 11. Float; 12. Insulation layer; 13. Shock-absorbing pad. Detailed Implementation
[0018] 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.
[0019] Example 1
[0020] As attached Figs. 1-3The utility model provides an anti-overflow device for a fire-fighting water tank for high-rise buildings, comprising a fire-fighting water tank body 1, a liquid level sensor 9 fixedly arranged on the inner wall of the fire-fighting water tank body 1, three groups of liquid level sensors 9 arranged longitudinally, a connecting rod 10 fixedly arranged on one side of the liquid level sensor 9, and a float ball 11 fixedly arranged on one side of the connecting rod 10.
[0021] The liquid level sensor 9 can monitor the change in water level and accurately feedback the condition of each water level interval in the water tank in real time, so that the device has enhanced practicability and a wider range of use.
[0022] Embodiment two
[0023] On the basis of embodiment one, the scheme in embodiment one is further refined and introduced in combination with the following specific working modes, as shown in the following description: Figs. 1-3 As shown in the following description:
[0024] As a preferred embodiment, a water inlet pipe 2 is arranged on one side of the fire-fighting water tank body 1, a variable frequency water pump 4 is arranged on one side of the water inlet pipe 2, and a filter plate 5 is clamped in the water inlet pipe 2; further, the filter plate 5 can effectively intercept impurities, silt, suspended solids and the like in the water, thereby effectively avoiding the influence on the liquid level sensor 9, the float ball 11 and the connecting rod 10.
[0025] An anti-overflow pipe 6 is fixedly arranged on one side of the fire-fighting water tank body 1, an electric valve 7 is arranged on one side of the anti-overflow pipe 6, and the height of the anti-overflow pipe 6 is higher than that of the water inlet pipe 2; further, the anti-overflow pipe 6 can be opened when the water level reaches its height, thereby avoiding the continuous rise of the water level in the fire-fighting water tank body 1 until overflow, preventing problems such as ceiling water seepage, wall dampness, electrical equipment short circuit and the like.
[0026] A water outlet pipe 3 is fixedly arranged on one side of the fire-fighting water tank body 1, and a controller 8 is fixedly arranged at one end of the water inlet pipe 2; further, the controller 8 is arranged to facilitate the control of external equipment according to actual use requirements, so that the device is more convenient to use.
[0027] A shock-absorbing pad 13 is connected to the fire-fighting water tank body 1 through a support column, the shock-absorbing pad 13 is arranged in several groups, and a heat preservation layer 12 is fixedly arranged on the inner wall of the fire-fighting water tank body 1; further, the heat preservation layer 12 can reduce the heat exchange between the water in the fire-fighting water tank body 1 and the external environment, and keep the water temperature within a suitable range.
[0028] The working process of the utility model is as follows:
[0029] In use, first by in the fire water tank body 1 inside one side is longitudinally arranged with a plurality of liquid level sensors 9, liquid level sensor 9 outside is connected with a float ball 11 through connecting rod 10, a plurality of liquid level sensors 9 can realize real-time monitoring of water level change, when the water level rises, the float ball 11 drives the connecting rod 10 to make the corresponding liquid level sensor 9 signal change, the liquid level sensor 9 transmits the signal to the controller 8, the controller 8 controls the frequency conversion water pump 4 and the electric valve 7 of the overflow pipe 6 according to the signal of different liquid level sensors 9, when the lower liquid level sensor 9 feedbacks that the water level is close to the normal upper limit, the controller 8 reduces the rotating speed of the frequency conversion water pump 4, when the middle liquid level sensor 9 feedback reaches a certain water level, the controller 8 stops the frequency conversion water pump 4 and opens the electric valve 7 of the overflow pipe 6, if the highest liquid level sensor 9 triggers, the controller 8 continues to execute the overflow operation, at the same time, the controller 8 transmits the fault alarm information to the external staff, at the same time, the filter plate 5 is clamped in the water inlet pipe 2, the filter plate 5 can effectively intercept impurities, silt and suspended solids in water, thereby effectively avoiding the influence on the liquid level sensor 9, the float ball 11 and the connecting rod 10, causing the running to be blocked or the detection accuracy to be reduced, thereby improving the practicability of the device to a certain extent, in addition, the heat insulating layer 12 can reduce the heat exchange between the water in the fire water tank body 1 and the external environment, keep the water temperature in the appropriate range, ensure that the fire water is available at any time, thereby making the device have a wider range of use, finally, the shock pad 13 can effectively buffer the transmission of vibration to the fire water tank body 1, avoid the fire water tank body 1 from cracking due to continuous vibration, loosening of the connection and water leakage, thereby prolonging the service life of the device to a certain extent.
[0030] Finally: the above only for preferred embodiments of the present application have, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A high-rise building fire water tank overflow prevention device comprising a fire water tank body (1), characterized in that; The liquid level sensor (9) is longitudinally arranged in three groups, and the liquid level sensor (9) is fixedly provided with a connecting rod (10) on one side.
2. The anti-overflow device for a fire water tank of a high-rise building according to claim 1, characterized in that: The fire-fighting water tank body (1) is provided with a water inlet pipe (2) on one side, the water inlet pipe (2) is provided with a frequency conversion water pump (4) on one side, and the water inlet pipe (2) is clamped with a filter plate (5) inside.
3. The anti-overflow device for a fire water tank of a high-rise building according to claim 1, characterized in that: The fire-fighting water tank body (1) is fixedly provided with an anti-overflow pipe (6) on one side, the anti-overflow pipe (6) is provided with an electric valve (7) on one side, and the height of the anti-overflow pipe (6) is higher than that of the water inlet pipe (2).
4. The anti-overflow device for a fire water tank of a high-rise building according to claim 1, characterized in that: The fire-fighting water tank body (1) is fixedly provided with a water outlet pipe (3) on one side, and the water inlet pipe (2) is fixedly provided with a controller (8) at one end.
5. The anti-overflow device for a fire water tank of a high-rise building according to claim 1, characterized in that: The fire-fighting water tank body (1) is connected with a damping pad (13) through a supporting column at the bottom, the damping pad (13) is provided with a plurality of groups, and the fire-fighting water tank body (1) is fixedly provided with a heat preservation layer (12) on the inner wall.
Citation Information
Patent Citations
Anti-overflow device of fire water tank for high-rise building
CN213709725U