Automatic water replenishing device for fire-fighting water tank of high-rise building
By introducing a combined design of main water tank, auxiliary water tank and buffer water tank in the fire water tank of high-rise buildings, and using float valve groups with different strokes, the equipment failure caused by frequent opening and closing of float valves is solved, and the durability of the equipment is achieved.
Patent Information
- Application Number
- CN202423266667.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-28
AI Technical Summary
In existing fire water tank replenishment devices for high-rise buildings, the float valve's stroke is too sensitive, leading to frequent opening and closing, which can easily cause equipment failure and shorten its service life.
The system adopts a combination design of main water tank, auxiliary water tank and buffer water tank, and is equipped with a first float valve group and a second float valve group respectively. By adjusting the different strokes of the two float valve groups, the main water tank can maintain a loose water replenishment threshold when not in use, avoiding frequent opening and closing and extending the service life of the equipment.
The combined design of the main water tank and the auxiliary water tank extends the service life of the equipment, avoids equipment damage caused by frequent opening and closing of the float valve, and improves the durability of the equipment.
Smart Images
Figure CN223647140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building fire protection technology, and in particular to an automatic water replenishment device for fire water tanks in high-rise buildings. Background Technology
[0002] High-rise buildings refer to residential buildings with a height greater than 27 meters and non-single-story factories, warehouses, and other civil buildings with a height greater than 24 meters. With social development, building heights are constantly increasing, leading to a rise in disasters. Among these, fire is the most significant. Therefore, fire prevention in buildings is of paramount importance. Currently, all high-rise buildings are equipped with fire protection systems, including fire water tanks. Fire water tanks are fire-fighting facilities that provide water to fire brigades during firefighting and rescue operations. These tanks keep the fire water supply pipes full of water, saving time for the fire pumps to fill the pipes after startup, thus gaining valuable time for fire suppression.
[0003] Existing fire water tanks use a matching float valve and inlet valve to control the water level in real time. When the water level reaches the control position of the float valve, the inlet valve is closed. When the water level drops to the point where the float valve disengages, the inlet valve is immediately opened to replenish water. Because the stroke range of the float valve is very limited, the water level in the tank will always be at a high level, and the frequent opening and closing of the float valve and inlet valve will easily lead to malfunctions.
[0004] Therefore, there is a need for an automatic water replenishment device for fire water tanks in high-rise buildings that can extend their service life. Utility Model Content
[0005] The main purpose of this utility model is to provide an automatic water replenishment device for fire water tanks in high-rise buildings, which aims to solve the problem of the short service life of existing fire water tank replenishment devices for high-rise buildings.
[0006] To achieve the above objectives, the present invention proposes an automatic water replenishment device for fire-fighting water tanks in high-rise buildings, comprising:
[0007] Main water tank;
[0008] A secondary water tank is located on one side of the main water tank.
[0009] A buffer water tank is disposed on the main water tank near the auxiliary water tank, and the buffer water tank is connected to the auxiliary water tank;
[0010] The first float valve assembly is located at the top of the main water tank and includes a first float and a first float valve connected to the first float.
[0011] The second float valve assembly is located at the top of the auxiliary water tank. The second float valve assembly includes a second float and a second float valve connected to the second float.
[0012] A control assembly is disposed at the top of the main water tank. One side of the control assembly is connected to the first float valve assembly, and the other side of the control assembly is connected to the second float valve assembly.
[0013] The main water tank, the auxiliary water tank, and the buffer water tank are connected to each other via conduits.
[0014] Preferably, the first float includes a first eccentric float and a first support rod connected to the first eccentric float, the first eccentric float being connected to the first float valve via the first support rod. The second float includes a second eccentric float and a second support rod connected to the second eccentric float, the second eccentric float being connected to the second float valve via the second support rod.
[0015] Preferably, the first float valve includes a first valve body, a first top plate, and a first limiting plate. The first top plate is connected to the first support rod. The first valve body is disposed at the top of the main water tank. The first limiting plate is disposed inside the first valve body. The first top plate is connected to the first valve body through an elastic element. The first top plate is connected to the first limiting plate.
[0016] Preferably, the second float valve includes a second valve housing, a second top plate, and a second limiting plate. The second top plate is connected to the second support rod. The second valve housing is disposed at the top of the main water tank. The second limiting plate is disposed inside the second valve housing. The second top plate is connected to the second valve housing by an elastic element. The second top plate is connected to the second limiting plate.
[0017] Preferably, the first float valve further includes a first touch head, and the first limiting plate is provided with a first sensing segment. The first sensing segment is located on the side of the first limiting plate near the first touch head. When the first limiting plate abuts against the first top plate, the first touch head is connected to the control component through the first sensing segment. The second float valve further includes a second touch head, and the second limiting plate is provided with a second sensing segment. The second sensing segment is located on the side of the second limiting plate near the second touch head. When the second limiting plate abuts against the second top plate, the second touch head is connected to the control component through the second sensing segment.
[0018] Preferably, the automatic water replenishment device for fire water tanks in high-rise buildings further includes a first pump and a second pump. The first pump is located at the top of the main water tank, one end of the first pump is connected to the auxiliary water tank, and the other end of the first pump is connected to the main water tank. One end of the second pump is connected to the buffer water tank, and the other end of the second pump is connected to the auxiliary water tank.
[0019] Preferably, the automatic water replenishment device for the fire water tank of the high-rise building is further provided with an overflow pipe, one end of which is located in the main water tank and the other end of which is located in the buffer water tank. The main water tank is connected to the buffer water tank through the overflow pipe.
[0020] Preferably, the main water tank is provided with an outlet pipe, the buffer water tank is provided with an inlet pipe, and the outlet pipe and the inlet pipe are spaced apart.
[0021] This utility model discloses an automatic water replenishment device for fire-fighting water tanks in high-rise buildings, which includes a main water tank, an auxiliary water tank, and a buffer water tank. To avoid equipment failure caused by excessive sensitivity and frequent water replenishment, this utility model utilizes a first float valve group and a second float valve group respectively installed in the main water tank and the auxiliary water tank. By adjusting the different strokes of the two float valve groups, a loose water replenishment threshold can be maintained in the main water tank when no water is needed. This extends the service life of the equipment and avoids frequent opening and closing of the first float valve group in the main water tank, which could lead to equipment damage. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of an automatic water replenishment device for fire-fighting water tanks in high-rise buildings according to an embodiment of the present invention;
[0024] Figure 2 This is a cross-sectional structural schematic diagram of an automatic water replenishment device for fire-fighting water tanks in high-rise buildings according to an embodiment of the present invention;
[0025] Figure 3 This is a schematic diagram of the structure of the first valve shell according to an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the structure of the first support rod in one embodiment of the present invention;
[0027] Figure 5This is a schematic diagram of the structure of the second support rod in one embodiment of the present invention.
[0028] Explanation of icon numbers:
[0029]
[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0031] 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.
[0032] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0034] In existing technologies, automatic water replenishment devices for fire water tanks in high-rise buildings are typically divided into circulating fire water tanks and non-circulating fire water tanks. Circulating fire water tanks are normally connected to the municipal water supply network, keeping the water in the tank in a circulating state. Their main purpose is to provide clean domestic water and fire-fighting water. Non-circulating fire water tanks are not connected to the municipal water supply network and their main purpose is only to provide fire-fighting water to the fire brigade when fire hydrants are unavailable. When circulating fire water tanks connected to the municipal water supply network are installed in high-rise buildings, the water level in the tank often drops due to evaporation, requiring a water replenishment device. This device usually uses a float valve, which floats at the water level in the tank. When the water level drops, the float valve controls the water inflow to replenish the tank. However, the float valves in existing technologies are often too sensitive, resulting in frequent water inflow and replenishment. Frequent opening and closing of the float valve can easily damage the equipment.
[0035] Based on this, the present invention proposes an automatic water replenishment device 1000 for fire-fighting water tanks in high-rise buildings, comprising: a main water tank 100; an auxiliary water tank 200 disposed on one side of the main water tank 100; a buffer water tank 300 disposed on the main water tank 100 near the auxiliary water tank 200, and connected to the auxiliary water tank 200; and a first float valve assembly 400 disposed at the top of the main water tank 100, the first float valve assembly 400 including a first float 410 and a connection thereof. A first float valve 420; a second float valve assembly 500, which is located at the top of the auxiliary water tank 200 and includes a second float 510 and a second float valve 520 connected to the second float 510; and a control assembly 600, which is located at the top of the main water tank 100, with one side of the control assembly 600 connected to the first float valve assembly 400 and the other side connected to the second float valve assembly 500; wherein the main water tank 100, the auxiliary water tank 200, and the buffer water tank 300 are connected to each other through conduits.
[0036] In this example, such as Figures 1-5 As shown, the first float valve assembly 400 and the second float valve assembly 500 are both signal connected to the control component 600, and the first float 410 and the second float 510 both float at the liquid surface of the main water tank 100 or the auxiliary water tank 200. When the liquid level in the main water tank 100 drops, the first float 410 moves downwards due to the liquid level, and the water inlet is opened by the control component 600, allowing the auxiliary water tank 200 to replenish the main water tank 100. The first float valve assembly 400 can be set with a relatively long stroke to protect its service life. When the liquid level in the auxiliary water tank 200 drops, the second float 510 drops along with the falling liquid level in the auxiliary water tank 200, and the water inlet is opened by the control component 600, allowing the buffer water tank 300 to replenish the auxiliary water tank 200. The trigger stroke of the second float valve assembly 500 can be relatively short to ensure that the liquid level in the main water tank 100 can be replenished at any time when it drops.
[0037] Specifically, the trigger stroke of the first float valve assembly 400 can be 15-25 cm above the liquid level, and the trigger stroke of the second float valve assembly 500 can be 5-10 cm below the liquid level.
[0038] In one embodiment, the first float 410 includes a first eccentric float 411 and a first support rod 412 connected to the first eccentric float 411. The first eccentric float 411 is connected to the first float valve 420 through the first support rod 412. The second float 510 includes a second eccentric float 511 and a second support rod 512 connected to the second eccentric float 511. The second eccentric float 511 is connected to the second float valve 520 through the second support rod 512.
[0039] In this embodiment, the first support rod 412 includes a first support base 412a and a first lifting rod 412b. The first lifting rod 412b is movably connected to the first support base 412a. One end of the first lifting rod 412b is rotatably connected to the first eccentric float 411 via a transmission rod. When the liquid level in the main water tank 100 rises or falls, the first lifting rod 412b is driven by the first eccentric float 411, thereby causing the first lifting rod 412b to rise or fall relative to the first support base 412a. When the descent stroke of the first lifting rod 412b meets the water replenishment stroke, the water replenishment signal of the control component 600 is triggered to replenish water to the main water tank 100. After water replenishment... The liquid level causes the first eccentric float 411 to move the first lifting rod 412b upwards, disengaging it from the water replenishment stroke and triggering a stop signal from the control component 600, thus ceasing water replenishment to the main water tank 100. It can be understood that the second support rod 512 includes a second support base 512a and a second lifting rod 512b. The second lifting rod 512b is movably connected to the second support base 512a, and one end of the second lifting rod 512b is rotatably connected to the second eccentric float 511 via a rotating rod. When the liquid level in the auxiliary water tank 200 decreases or increases, the second eccentric float 511 drives the second lifting rod 512b to move up or down, thereby triggering water replenishment or stopping water replenishment in the auxiliary water tank 200.
[0040] In one embodiment, the first float valve 420 includes a first valve housing 421, a first top plate 422, and a first limiting plate 423. The first top plate 422 is connected to the first support rod 412. The first valve housing 421 is disposed at the top of the main water tank 100. The first limiting plate 423 is disposed inside the first valve housing 421. The first top plate 422 is connected to the first valve housing 421 by an elastic element. The first top plate 422 is connected to the first limiting plate 423.
[0041] In this embodiment, one end of the first lifting rod 412b, away from the first eccentric float 411, passes through the top of the main water tank 100 and is housed within the first valve housing 421. The top end of the first lifting rod 412b abuts against the first top plate 422. The first top plate 422, driven by the first lifting rod 412b, can abut against or separate from the first limiting plate 423. When the liquid level in the main water tank 100 drops, the first top plate 422 is driven by the first lifting rod 412b towards... When the first top plate 422 moves downward, the bottom surface of the first top plate 422 comes into contact with the top surface of the first limiting plate 423, triggering the water replenishment signal of the control component 600 to replenish water to the main water tank 100; when the liquid level in the main water tank 100 rises after water replenishment, the first top plate 422 is driven upward by the first lifting rod 412b, and the bottom surface of the first top plate 422 is disconnected from the top surface of the first limiting plate 423, triggering the stop water replenishment signal of the control component 600 to stop replenishing water to the main water tank 100.
[0042] In detail, the rotating rod is a rod with three rotating shafts. One end of the rotating rod is connected to the first eccentric float 411 or the second eccentric float 511, and the other end is connected to the first lifting rod 412b or the second lifting rod 512b. The liquid level can include a water shortage state, a water replenishment state, and a water abundance state. When the liquid level drops to the water shortage state, the three rotating shafts of the rotating rod are vertically connected, causing the elastic element to be stretched to its maximum stroke, triggering a water replenishment signal. When the liquid level is in the water replenishment state, the three rotating shafts on the rotating rod are angularly connected, and the operator can manually trigger the water replenishment signal through the control box to replenish water as needed. When the liquid level rises to the water abundance state, the rotating rod rises to its highest point, the elastic element is at its shortest stroke, and at this time the control component 600 sends a stop water replenishment signal.
[0043] In one embodiment, the second float valve 520 includes a second valve housing 521, a second top plate 522, and a second limiting plate 523. The second top plate 522 is connected to the second support rod 512. The second valve housing 521 is disposed at the top of the main water tank 100. The second limiting plate 523 is disposed inside the second valve housing 521. The second top plate 522 is connected to the second valve housing 521 by an elastic element. The second top plate 522 is connected to the second limiting plate 523.
[0044] In this embodiment, one end of the second lifting rod 512b, away from the second eccentric float 511, passes through the top of the auxiliary water tank 200 and is housed within the second valve housing 521. The top end of the second lifting rod 512b abuts against the second top plate 522. The second top plate 522, driven by the second lifting rod 512b, can abut against or separate from the second limiting plate 523. When the liquid level in the auxiliary water tank 200 drops, the second top plate 522 is driven by the second lifting rod 512b towards... When the second top plate 522 moves downward, its bottom surface comes into contact with the top surface of the second limit plate 523, triggering the water replenishment signal of the control component 600 to replenish the auxiliary water tank 200. When the liquid level in the auxiliary water tank 200 rises after water replenishment, the second top plate 522 is driven upward by the second lifting rod 512b, and the bottom surface of the second top plate 522 is disconnected from the top surface of the second limit plate 523, triggering the stop water replenishment signal of the control component 600 to stop replenishing the auxiliary water tank 200.
[0045] In one embodiment, the first float valve 420 further includes a first touch head 424, and the first limiting plate 423 is provided with a first sensing segment 423a. The first sensing segment 423a is located on the side of the first limiting plate 423 near the first touch head 424. When the first limiting plate 423 abuts against the first top plate 422, the first touch head 424 is connected to the control component 600 through the first sensing segment 423a. The second float valve 520 further includes a second touch head 524, and the second limiting plate 523 is provided with a second sensing segment 523a. The second sensing segment 523a is located on the side of the second limiting plate 523 near the second touch head 524. When the second limiting plate 523 abuts against the second top plate 522, the second touch head 524 is connected to the control component 600 through the second sensing segment 523a.
[0046] In this embodiment, the first float valve 420 and the second float valve 520 are also respectively provided with a first converter 425 and a second converter 525. The first converter 425 and the second converter 525 are respectively disposed on the side of the first valve housing 421 near the first limiting plate 423 and the side of the second valve housing 521 near the second limiting plate 523. Both the first converter 425 and the second converter 525 are connected to the control component 600; the first touch head 424 is disposed on one side of the inner wall of the first valve housing 421. A limiting plate 423 is disposed on the other side inside the first valve housing 421. The first touch head 424 is used to send a water supply signal to the main water tank 100. When the liquid level in the main water tank 100 drops, the first limiting plate 423 is connected to the first top plate 422. The first touch head 424 sends a water supply signal to the main water tank 100 and transmits it to the first sensing segment 423a through the first top plate 422. Then, the water supply signal to the main water tank 100 is transmitted to the control component 600 through the first converter 425 to complete the water supply to the main water tank 100. It is understood that the second touch head 524 is correspondingly disposed on one side inside the second valve housing 521. When the liquid level in the auxiliary water tank 200 decreases, the second limit plate 523 is connected to the second top plate 522. The second touch head 524 sends a water supply signal to the auxiliary water tank 200 and transmits it to the second sensing section 523a through the second top plate 522. The water supply signal to the auxiliary water tank 200 is then transmitted to the control component 600 through the second converter 525 to complete the water supply to the auxiliary water tank 200.
[0047] In one embodiment, the automatic water replenishment device 1000 for fire water tanks in high-rise buildings further includes a first pump 700 and a second pump 800. The first pump 700 is located at the top of the main water tank 100. One end of the first pump 700 is connected to the auxiliary water tank 200, and the other end of the first pump 700 is connected to the main water tank 100. One end of the second pump 800 is connected to the buffer water tank 300, and the other end of the second pump 800 is connected to the auxiliary water tank 200.
[0048] In this embodiment, the first pump 700 is located at the top of the main water tank 100 and is signal-connected to the control component 600. When the control component 600 receives a water supply signal from the main water tank 100, the first pump 700 transports water from the auxiliary water tank 200 to the main water tank 100. The second pump 800 is located on one side of the auxiliary water tank 200 and is connected to the control component 600. The second pump 800 is also signal-connected to the control component 600. When the control component 600 receives a water supply signal from the auxiliary water tank 200, the second pump 800 transports water from the buffer water tank 300 to the auxiliary water tank 200.
[0049] In one embodiment, the automatic water replenishment device 1000 for fire water tanks in high-rise buildings is further provided with an overflow pipe 900. One end of the overflow pipe 900 is located in the main water tank 100, and the other end of the overflow pipe 900 is located in the buffer water tank 300. The main water tank 100 is connected to the buffer water tank 300 through the overflow pipe 900.
[0050] In this embodiment, one end of the overflow pipe 900 is located inside the main water tank 100 and the pipe opening is higher than the safe water level inside the main water tank 100. The other end of the overflow pipe 900 is located in the buffer water tank 300. When the liquid level in the main water tank 100 is too high, the excess water flows back from the overflow pipe 900 to the buffer water tank 300.
[0051] In one embodiment, the main water tank 100 is provided with an outlet pipe 110, and the buffer water tank 300 is provided with an inlet pipe 310, with the outlet pipe 110 and the inlet pipe 310 spaced apart.
[0052] In this embodiment, one end of the buffer water tank 300 is provided with a water inlet pipe 310, which is connected to the external urban tap water network. The buffer water tank 300 is used to receive water pumped from the urban tap water network to this utility model installed on the high-rise building by a high-pressure pump, so as to prevent the water pressure from being too high when pumping water and the high-pressure water flow from directly washing the equipment and causing damage to the equipment.
[0053] This utility model discloses an automatic water replenishment device for fire-fighting water tanks in high-rise buildings, which includes a main water tank, an auxiliary water tank, and a buffer water tank. To avoid equipment failure caused by excessive sensitivity and frequent water replenishment, this utility model utilizes a first float valve group and a second float valve group respectively in the main water tank and the auxiliary water tank. By adjusting the different strokes of the two float valve groups, a loose water replenishment threshold can be maintained in the main water tank when no water is needed. When water needs to be replenished, the main water tank is replenished by the auxiliary water tank alone, reducing energy consumption. When water is needed, the buffer water tank carries a high-pressure pump to pump tap water from the municipal water supply network to a higher location, preventing the float valve group from being directly impacted by the high-pressure water flow. This extends the service life of the equipment and avoids frequent opening and closing of the first float valve group in the main water tank, which could cause equipment damage.
[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. An automatic water replenishment device for fire-fighting water tanks in high-rise buildings, characterized in that, include: Main water tank; A secondary water tank is located on one side of the main water tank. A buffer water tank is disposed on the main water tank near the auxiliary water tank, and the buffer water tank is connected to the auxiliary water tank; The first float valve assembly is located at the top of the main water tank and includes a first float and a first float valve connected to the first float. The second float valve assembly is located at the top of the auxiliary water tank and includes a second float and a second float valve connected to the second float. A control assembly is disposed at the top of the main water tank. One side of the control assembly is connected to the first float valve assembly, and the other side of the control assembly is connected to the second float valve assembly. The main water tank, the auxiliary water tank, and the buffer water tank are connected to each other via conduits.
2. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 1, characterized in that, The first float includes a first eccentric float and a first support rod connected to the first eccentric float. The first eccentric float is connected to the first float valve through the first support rod. The second float includes a second eccentric float and a second support rod connected to the second eccentric float. The second eccentric float is connected to the second float valve through the second support rod.
3. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 2, characterized in that, The first float valve includes a first valve body, a first top plate, and a first limiting plate. The first top plate is connected to the first support rod. The first valve body is disposed at the top of the main water tank. The first limiting plate is disposed inside the first valve body. The first top plate is connected to the first valve body through an elastic element. The first top plate is connected to the first limiting plate.
4. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 3, characterized in that, The second float valve includes a second valve body, a second top plate, and a second limiting plate. The second top plate is connected to the second support rod. The second valve body is located at the top of the main water tank. The second limiting plate is located inside the second valve body. The second top plate is connected to the second valve body via an elastic element. The second top plate is connected to the second limiting plate.
5. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 4, characterized in that, The first float valve further includes a first touch head, and the first limiting plate is provided with a first sensing section. The first sensing section is located on the side of the first limiting plate near the first touch head. When the first limiting plate abuts against the first top plate, the first touch head is connected to the control component through the first sensing section. The second float valve further includes a second touch head, and the second limiting plate is provided with a second sensing section. The second sensing section is located on the side of the second limiting plate near the second touch head. When the second limiting plate abuts against the second top plate, the second touch head is connected to the control component through the second sensing section.
6. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 5, characterized in that, The automatic water replenishment device for fire water tanks in high-rise buildings also includes a first pump and a second pump. The first pump is located at the top of the main water tank. One end of the first pump is connected to the auxiliary water tank, and the other end of the first pump is connected to the main water tank. One end of the second pump is connected to the buffer water tank, and the other end of the second pump is connected to the auxiliary water tank.
7. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 1, characterized in that, The automatic water replenishment device for the fire water tank of the high-rise building is also equipped with an overflow pipe. One end of the overflow pipe is located in the main water tank, and the other end of the overflow pipe is located in the buffer water tank. The main water tank is connected to the buffer water tank through the overflow pipe.
8. The automatic water replenishment device for fire-fighting water tanks in high-rise buildings as described in claim 1, characterized in that, The main water tank is equipped with an outlet pipe, and the buffer water tank is equipped with an inlet pipe. The outlet pipe and the inlet pipe are spaced apart.