Fire water tank and water storage system

Abstract

The utility model provides a kind of fire water tank and water cold storage system.Fire water tank includes tank body, liquid level meter, water inlet pipe, electric valve and drainage component.Liquid level meter is used to monitor the water level height in tank body.Electric valve is set on water inlet pipe, and is electrically connected with electric valve.When liquid level meter monitors the water level height in tank body is lower than second liquid level line, electric valve opens to enable water to flow to the inside of tank body by water inlet pipe.Liquid level meter monitors the water level height in tank body to the electric valve closure when second liquid level line.Electric valve includes drainage pipe and drainage pump, and liquid level meter is electrically connected with drainage pump.First liquid level line is lower than the highest place of drainage pipe.Drainage pipe is used to discharge the water amount higher than first liquid level line in tank body to the outside of tank body.The water level height is to first liquid level line, and drainage pump stops draining.The structure of the application is set to fire water tank, can realize the automatic shutdown of water filling, and also effectively guarantees fire water.

Description

Technical Field

[0001] This utility model relates to the field of water storage tank technology, and in particular to a fire-fighting water tank and a water-cooled storage system. Background Technology

[0002] Water-based cooling technology is an energy-saving technology that utilizes off-peak electricity rates at night to cool water, and then uses the stored cooling water for air conditioning during peak daytime electricity rates. Currently, modern industrial production often uses large-volume fire-fighting water tanks. However, because the water remains stagnant, it easily breeds aquatic organisms, leading to pipe blockages. Therefore, water-based cooling technology is commonly applied to the design of fire-fighting water tanks, using these normally unused tanks as cooling water storage tanks. This not only circulates the water within the tank, improving water quality, but also saves space and initial investment.

[0003] However, traditional fire water tanks typically use float valves for automatic water filling. With prolonged use, these float valves become severely corroded and prone to jamming in the open position, preventing automatic shut-off. Furthermore, the application of water-cooled storage technology to fire water tanks requires ensuring sufficient water supply to guarantee a stable water flow during a sudden fire. Utility Model Content

[0004] One objective of this invention is to provide a fire water tank with a more reliable water supply method, capable of automatic shut-off and ensuring fire-fighting water supply.

[0005] Another objective of this invention is to provide a water storage and cooling system having the aforementioned fire-fighting water tank.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A fire-fighting water tank, comprising:

[0008] The tank body has a first liquid level line and a second liquid level line arranged sequentially from bottom to top along the height direction of the tank body; the tank body is used for storing water;

[0009] A level gauge is used to monitor the water level inside the tank.

[0010] Water inlet pipe;

[0011] An electric valve is installed on the water inlet pipe. The level gauge is electrically connected to the electric valve. When the level gauge detects that the water level inside the tank is lower than the second level line, the electric valve opens to allow water to flow into the tank through the water inlet pipe. When the level gauge detects that the water level inside the tank reaches the second level line, the electric valve closes.

[0012] A drainage assembly includes a drain pipe and a drain pump. The level gauge is electrically connected to the drain pump. The first level line is lower than the highest point of the drain pipe. The drain pipe is used to discharge water in the tank that is above the first level line to the outside of the tank. When the water level reaches the first level line, the drain pump stops draining.

[0013] In one exemplary embodiment, the drain pipe includes a bend and a vacuum breaker hole, the first liquid level line is disposed below the highest point of the bend, and the vacuum breaker hole is located between the first liquid level line and the second liquid level line.

[0014] In one exemplary embodiment, the system includes a first vertical pipe and a water distributor. The vertical pipe is located inside the tank and is connected to the inlet pipe and the outlet pipe. The vertical pipe and the water distributor are connected so that water flows through the inlet pipe and the vertical pipe to the water distributor, and the water distributor distributes the water from top to bottom inside the tank.

[0015] In an exemplary embodiment, the vertical main pipe includes a first vertical section and a second vertical section, the first vertical section being located above the second vertical section and the first vertical section and the second vertical section not being connected; the first vertical section is connected to the water inlet pipe; and the second vertical section is connected to the drain pipe.

[0016] In an exemplary embodiment, a sealing plate is provided between the first vertical segment and the second vertical segment, the sealing plate sealing the end of the first vertical segment near the second vertical segment, and / or the end of the second vertical segment near the first vertical segment, so that the first vertical segment and the second vertical segment are not connected.

[0017] In one exemplary embodiment, a heat insulation layer is provided between the first vertical segment and the second vertical segment; two sealing plates are provided, and the heat insulation layer is provided between the two sealing plates.

[0018] In one exemplary embodiment, the system includes a first support structure and a second support, wherein the first support structure supports the top of the vertical main pipe and the second support structure supports the bottom of the vertical main pipe.

[0019] In one exemplary embodiment, the inner wall of the tank is provided with an anti-corrosion layer; the outer wall of the tank is provided with an anti-rust layer and a first heat insulation layer.

[0020] In one exemplary embodiment, a second insulation layer is provided on the outer bottom of the tank.

[0021] A water-based cooling system includes a fire control center, a water circulation pipeline, and a fire water tank as described above. The fire control center is electrically connected to a level gauge in the fire water tank, enabling the level gauge to send a signal to the fire control center. The fire control center is also electrically connected to an electric valve in the fire water tank, allowing the fire control center to control the opening and closing of the electric valve. Furthermore, the fire control center is electrically connected to a drainage pump in the fire water tank, enabling the fire control center to control the opening and closing of the drainage pump.

[0022] In an exemplary embodiment, the fire water tank further includes a third liquid level line, which is located between the first liquid level line and the second liquid level line; when the water level inside the tank reaches the third liquid level line, the level gauge sends an alarm signal to the fire control center.

[0023] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0024] This utility model discloses a fire water tank, comprising a tank body, an inlet pipe, an electric valve, a level gauge, and a drainage assembly. The electric valve is mounted on the inlet pipe and is electrically connected to the level gauge. When the level gauge detects that the water level inside the tank is below a second level line, the electric valve opens to allow water to enter the tank through the inlet pipe for timely replenishment. When the level gauge detects that the water level has reached the second level line, the electric valve closes to stop water replenishment. Therefore, this application, by incorporating an electric valve, enables automatic water filling and automatic shut-off of the fire water tank. Compared to existing float valves that are prone to jamming in the open position, this effectively avoids the jamming caused by wear and other issues, thereby improving the long-term reliability of the fire water tank.

[0025] Furthermore, the drainage assembly includes a drain pipe and a drain pump. The first liquid level line is lower than the highest point of the drain pipe, which is used to discharge water from the tank that is above the first liquid level line to the outside of the tank. When the water level reaches the first liquid level line, the drain pump stops draining. Therefore, water inside the tank can only be discharged to the outside of the tank through the drain pipe when the water level is above the first liquid level line. This design ensures that a certain amount of water is always stored inside the tank for fire-fighting use, ensuring a stable water flow during a sudden fire and meeting the fire-fighting water needs in emergency situations. Therefore, the drain pipe discharges water from the fire-fighting water tank that exceeds the first liquid level line; this water can be used as a refrigerant to provide cooling for air conditioning.

[0026] Therefore, the electric valve and drain pipe in this application, through precise automatic control and the coordinated action of the drain pipe, ensure the stability of the water supply to the fire water tank and timely adjustment when the water level in the tank is insufficient, thus providing a reliable water source for fire fighting. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a fire water tank according to one embodiment of the present invention.

[0028] Figure 2 yes Figure 1 The diagram shows the structure of the tank and the various structures located inside the tank.

[0029] Figure 3 yes Figure 2 A schematic diagram of the structure of the drainage pipe and fixing components.

[0030] Figure 4 yes Figure 3 The top view shown.

[0031] Figure 5 yes Figure 2 A schematic diagram of the structure of the first connecting pipe.

[0032] Figure 6 yes Figure 2 A schematic diagram of the first supporting structure.

[0033] Figure 7 yes Figure 2 Enlarged view of a section where the central vertical main pipe has a sealing plate.

[0034] Figure 8 yes Figure 2 A schematic diagram of the second supporting structure.

[0035] Figure 9 yes Figure 2 The diagram shows the liquid level settings for the fire water tank.

[0036] The annotations in the attached figures are explained as follows:

[0037] 100. Fire water tank; 10. Tank body; 11. Fire water outlet; 12. Outlet; 13. First liquid level line; 14. Second liquid level line; 15. Third liquid level line; 16. Fourth liquid level line; 17. Fifth liquid level line; 20. Inlet pipe; 30. Drainage assembly; 31. Drainage pipe; 311. Bend pipe; 312. First vertical pipe; 313. Second vertical pipe; 314. First horizontal pipe; 315. Second horizontal pipe; 32. Vacuum breaker 40. Hole; 41. Fixing component; 42. Support plate; 50. U-bolt; 51. Vertical main pipe; 52. First vertical section; 53. Second vertical section; 54. Sealing plate; 55. First connecting pipe; 56. Interface; 61. Insulation layer; 62. Second connecting pipe; 63. First support structure; 74. Hanger; 75. First pipe clamp; 76. Intermediate support pipe; 77. Second support structure; 78. Support platform; 79. Second pipe clamp; 80. Overflow pipe. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0039] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] This utility model provides a fire water tank 100 and a water storage cooling system including the fire water tank 100. Through the structural design of the fire water tank 100, the water supply method is made more reliable. It can realize the automatic shut-off of water supply while ensuring that the fire water tank 100 reliably stores the amount of water for fire fighting. The specific solution is described in the following embodiments.

[0042] The water-cooled storage system includes a fire water tank 100, water circulation pipelines, and heating, ventilation, and air conditioning.

[0043] The water circulation pipeline is connected to the HVAC system, and the fire water tank 100 is installed on the water circulation pipeline. The return water generated by the HVAC system flows into the water circulation pipeline and is stored in the fire water tank 100. During peak electricity consumption periods of the HVAC system during the day, the water in the fire water tank 100 can supply cooling to the HVAC system through the water circulation pipeline.

[0044] Further, please refer to Figure 1 The fire water tank 100 includes a tank body 10 for storing water.

[0045] In some embodiments, the inner wall of the tank 10 is provided with an anti-corrosion layer (not shown) to resist chemical corrosion from water, thereby helping to extend the service life of the fire water tank 100. The anti-corrosion layer can be an epoxy coating, a polyurethane coating, etc.

[0046] In some embodiments, a rust-proof layer (not shown) is provided on the outer wall of the tank 10. The rust-proof layer can prevent oxidation and corrosion of the fire water tank 100, further extending the service life of the fire water tank 100. The rust-proof layer can be an epoxy coating, a polyurethane layer, etc.

[0047] In some embodiments, a first insulation layer (not shown) is provided on the outer wall of the tank 10, and a rust-proof layer is provided between the insulation layer and the outer wall of the tank 10. The insulation layer can reduce heat transfer, thereby helping to maintain a stable temperature inside the tank 10. The first insulation layer can be a foam glass layer, an asbestos layer, a fiberglass layer, etc.

[0048] In some embodiments, a second insulation layer is also provided on the outer bottom of the tank 10. The second insulation layer can be a foam glass wool layer, a fiberglass layer, etc. Taking a foam glass wool layer as an example, the foam glass wool layer can not only effectively block the influence of low temperature on the water temperature inside the tank 10 and enhance the insulation function of the tank 10, but also has good compressive strength, which can stably support the tank 10.

[0049] The fire water tank 100 includes an inlet pipe 20 and a drainage assembly 30. The return water from the HVAC system can enter the tank 10 through the inlet pipe 20. The drainage assembly 30 can drain the water inside the tank 10 to the outside of the tank 10 for use in HVAC cooling.

[0050] For example, the inlet pipe 20 is arranged horizontally, which helps to improve the water intake efficiency of the fire water tank 100.

[0051] Furthermore, the drainage assembly 30 includes a drain pipe 31 and a drain pump (not shown). The drain pump is mounted on the drain pipe 31, and the drain pipe 31 is connected to the water circulation pipeline. When the drain pump is activated, water inside the tank 10 can be drawn from inside the tank 10 into the water circulation pipeline.

[0052] In some embodiments, the drain pipe 31 includes a bend 311, which can change the flow direction of water. The bend 311 is provided with a vacuum breaking hole 32 to effectively prevent negative pressure backflow in the drain pipe 31, which is conducive to the stable discharge of water from the tank 10.

[0053] In some embodiments of this application, the drain pipe 31 includes a first vertical pipe 312, a second vertical pipe 313, and a first horizontal pipe 314. The two ends of the bend pipe 311 are respectively connected to the top ends of the first vertical pipe 312 and the second vertical pipe 313. The first horizontal pipe 314 is connected to the bottom end of the second vertical pipe 313. It can be understood that water inside the tank 10 can enter the interior of the first vertical pipe 312 from the bottom end of the first vertical pipe 312, and then flow sequentially through the second vertical pipe 313 and the first horizontal pipe 314 before flowing out to the outside of the tank 10.

[0054] It is understandable that the water level inside the tank 10 can only overflow automatically from the first vertical pipe 312 to the second vertical pipe 313 under natural conditions, i.e., without starting the drain pump, when the water level inside the tank 10 rises to the top of the return bend 311 and exceeds the vacuum rupture hole 32. If the drain pump is started at this time, it can ensure that the water inside the tank 10 is discharged stably. Conversely, when the water level inside the tank 10 is lower than the top of the return bend 311, i.e., when the water level inside the tank 10 is lower than the vacuum rupture hole 32 on the return bend 311, the water inside the tank 10 cannot be discharged through the drain assembly 30, or cannot be discharged continuously and stably.

[0055] Therefore, the above-mentioned arrangement of the drain pipe 31 ensures that the amount of water inside the fire water tank 100 below the vacuum rupture hole 32 can be stored in the fire water tank 100, so that the fire water tank 100 can always have a certain amount of water for fire fighting, ensuring a stable water flow during a sudden fire and meeting the fire fighting water demand in emergency situations.

[0056] Furthermore, a fire water outlet 11 is provided at the bottom of the tank 10. The height of the fire water outlet 11 is lower than the water inlet of the drain pipe 31 inside the tank 10, so as to ensure that the water inside the tank 10 can be fully utilized when fire water is needed.

[0057] In addition, the bottom of the tank 10 is provided with multiple water outlets 12. When it is necessary to clean the fire water tank 100, the water outlets 12 are provided to facilitate the drainage of water inside the tank 10.

[0058] In some embodiments, the fire water tank 100 includes a fixing assembly 40 for fixing a first vertical pipe 312 and a second vertical pipe 313. See, for example, [link to example]. Figures 2 to 4 The fixing assembly 40 includes a support plate 41 and two U-bolts 42. One end of the support plate 41 is fixed to the inner wall of the tank 10. The first vertical tube 312 and the second vertical tube 313 are respectively housed in the U-shaped groove of a U-bolt 42. Along the length of the support plate 41, the opposite ends of the U-bolts 42 are connected to the support plate 41, thereby limiting and fixing the first vertical tube 312 and the second vertical tube 313.

[0059] Multiple fixing components 40 may be provided to enhance the stability of the first vertical tube 312 and the second vertical tube 313. The specific configuration can be set according to actual needs and is not limited here. The figure shows an example with three fixing components 40.

[0060] See Figure 1In some embodiments, the fire water tank 100 includes a vertical main pipe 50 and a water distributor (not shown) disposed inside the tank body 10. The water distributor is disposed at the top of the tank body 10 and is connected to the vertical main pipe 50. The vertical main pipe 50 is also connected to an inlet pipe 20 so that water flows through the inlet pipe 20 and the first vertical pipe 312 to the water distributor, and the water distributor distributes the water from top to bottom inside the tank body 10.

[0061] The water distributor is designed to smoothly introduce HVAC return water into the tank 10, maintaining temperature stratification within the tank 10. Specifically, the HVAC return water is warm water, while the water at the bottom of the tank 10 is cold water. Therefore, a temperature stratification exists between the return water and the original water inside the tank 10, forming a sloping temperature layer. The water distributor evenly distributes the HVAC return water, allowing it to fall evenly and release heat slowly. While slightly lowering the return water temperature, it also effectively avoids drastically disturbing the existing temperature stratification within the tank, thus reducing the loss of cooling energy from the cold water at the bottom of the tank 10.

[0062] In addition, the inlet of the first vertical pipe 312 in the drain pipe 31 is located at the bottom of the tank 10. Therefore, the water pumped out from the tank 10 when the drain pump starts is low-temperature cold water, which can be used as a cooling medium to supply cooling for air conditioning.

[0063] See Figure 2 In some embodiments of this application, the vertical main pipe 50 includes a first vertical segment 51 and a second vertical segment 52. The length of the first vertical segment 51 is greater than the length of the second vertical segment 52. The first vertical segment 51 is located above the second vertical segment 52.

[0064] The first vertical segment 51 and the second vertical segment 52 are not connected. Specifically, a sealing plate 53 is provided between the first vertical segment 51 and the second vertical segment 52. The sealing plate 53 seals the end of the first vertical segment 51 near the second vertical segment 52; or the sealing plate 53 seals the end of the second vertical segment 52 near the first vertical segment 51; or, the sealing plate 53 is provided on both the end of the first vertical segment 51 near the second vertical segment 52 and the end of the second vertical segment 52 near the first vertical segment 51, to strengthen the non-communication between the first vertical segment 51 and the second vertical segment 52. This embodiment is illustrated by taking two sealing plates 53, one on the end of the first vertical segment 51 near the second vertical segment 52 and the other on the end of the second vertical segment 52 near the first vertical segment 51.

[0065] The end of the first vertical section 51 near the second vertical section 52 is connected to the inlet pipe 20. The fact that the first vertical section 51 and the second vertical section 52 are not connected means that the return water of the HVAC system flows from bottom to top in the vertical main pipe 50.

[0066] Specifically, the end of the first vertical segment 51 furthest from the second vertical segment 52 is connected to the water distributor. For example, please refer to... Figure 5 The vertical main pipe 50 includes a first connecting pipe 54, which is disposed on the second vertical section 52. The first connecting pipe 54 includes at least two interfaces 541, and the water distributor is provided with a corresponding connection port for each interface 541. Therefore, the return water of the HVAC system first flows from the inlet pipe 20 into the first vertical section 51, and flows from bottom to top to the first connecting pipe 54, then flows into the water distributor, and finally falls evenly into the tank 10 through the water distributor.

[0067] The specific number of interfaces 541 can be set according to actual needs. This application uses four interfaces 541 as an example for illustration. Each pair of interfaces 541 is located on one end of the first connecting pipe 54. For example, the second vertical segment 52 is connected to the center of the first connecting pipe 54, which helps to ensure the balance of the vertical main pipe 50.

[0068] See Figure 6 The fire water tank 100 includes a first support structure 60, which is disposed on the top of the tank body 10 and is used to stabilize the first vertical section 51. Exemplarily, the first support structure 60 includes two hangers 61 with grooves, one end of which is fixed to the top of the tank body 10. The opposite ends of the first connecting pipe 54 are respectively accommodated in the grooves of the hangers 61, thereby limiting the tilting of the vertical main pipe 50 within the tank body 10 and helping to ensure the stability of the vertical main pipe 50.

[0069] In some embodiments, the first support structure 60 includes a first pipe clamp 62 disposed on the hanger 61. The inner diameter of the first pipe clamp 62 is adapted to the outer diameter of the first connecting pipe 54, so that the first connecting pipe 54 can be installed on the first pipe clamp 62. The first pipe clamp 62 further enhances the connection strength between the first connecting pipe 54 and the hanger 61, and improves the stability of the vertical main pipe 50.

[0070] In some embodiments, the first support structure 60 may further include an intermediate support pipe 63. One end of the intermediate support pipe 63 is fixed to the top of the tank 10, and the other end is connected to the top of the first vertical section 51. The axial direction of the intermediate support pipe 63 may be collinear with the axial direction of the first vertical section 51. The intermediate support pipe 63 further enhances the stability of the vertical first vertical section 51.

[0071] In some examples, the second vertical segment 52 of the vertical main pipe 50 is connected to and communicates with the drain pipe 31. Specifically, the drain pipe 31 includes a second horizontal pipe 315, the end of which communicates with the bottom end of the first vertical pipe 312. The arrangement of the second horizontal pipe 315 makes the drain pipe 31 in this embodiment have a similar "V" shaped structure.

[0072] See Figure 7 In some embodiments, a heat insulation layer 55 may be provided on the portion of the vertical main pipe 50 located between the second horizontal pipe 315 and the inlet pipe 20. Specifically, in this embodiment, the heat insulation layer 55 is disposed between the two sealing plates 53. The heat insulation layer 55 can effectively prevent heat exchange between the first vertical section 51 and the second vertical section 52, avoiding the cold water used for supplying HVAC from absorbing heat and rising in temperature, thus affecting the performance of HVAC.

[0073] The vertical main pipe 50 is also provided with a second connecting pipe 56 connected to the second vertical section 52. The structure of the second connecting pipe 56 is roughly the same as that of the first connecting pipe 54 shown in the figure, and will not be described in detail here. The difference is that the interface on the second connecting pipe 56 is a water inlet, which is not connected to the water distributor, but is used for water intake, so that the water inside the tank 10 enters the second connecting pipe 56 through the water inlet, then flows to the second vertical section 52, and finally is discharged to the outside of the tank 10 through the drain pipe 31.

[0074] In some embodiments, please refer to Figure 8 and combined Figure 2 The fire water tank 100 includes a second support structure 70, which is located at the bottom of the tank body 10 and is used to support the second vertical section 52. Exemplarily, the second support structure 70 includes two spaced-apart support platforms 71, each support platform 71 having a second pipe clamp 72 for connecting to the second connecting pipe 56. The second pipe clamp 72 works in conjunction with the support platforms 71 to stably support the second vertical section 52 while effectively preventing the second vertical section 52 from shifting.

[0075] It is understandable that the first support structure 60 and the second support structure 70 work together to effectively ensure that the vertical main pipe 50 is stably erected inside the tank 10. Furthermore, the vertical main pipe 50 is also connected to the drain pipe 31, thus further ensuring the stability of the drain pipe 31.

[0076] The water-cooled storage system also includes a fire control center, which can monitor the water level in the fire water tank 100 in real time.

[0077] Specifically, the fire water tank 100 includes a level indicator (not shown), which monitors the water level inside the tank 10. The level indicator is electrically connected to the fire control center so that the water level information monitored by the level indicator can be sent to the fire control center to display the water level inside the fire water tank 100. Furthermore, when the level indicator detects an abnormal water level inside the tank 10, the level indicator can send an alarm signal to the fire control center, allowing operators to promptly address the abnormal water level situation inside the tank 10.

[0078] Specifically, the fire water tank 100 includes an electric valve, which is installed on the inlet pipe 20. The fire control center is electrically connected to the electric valve, enabling the fire control center to automatically control the opening and closing of the electric valve based on the water level information fed back by the level gauge. It can be understood that the level gauge and the electric valve are indirectly electrically connected through the fire control center.

[0079] Please see Figure 9 and combined Figure 2 A first liquid level line 13 and a second liquid level line 14 are sequentially provided from bottom to top along the height direction of the tank body 10. The first liquid level line 13 is the normal liquid level for fire fighting, and the second liquid level line 14 is the liquid level at which the electric valve automatically closes.

[0080] Specifically, when the level gauge detects that the water level inside the tank 10 is lower than the second level line 14, it transmits the signal to the fire control center. The fire control center sends an opening command to the electric valve, which opens the electric valve so that water can flow through the inlet pipe 20 into the tank 10 to replenish the water inside the tank 10 in a timely manner.

[0081] When the level gauge detects that the water level inside the tank 10 has reached the second level line 14, it transmits the corresponding signal to the fire control center. The fire control center then sends a closing command to the electric valve, causing the electric valve to close and stopping the water replenishment operation into the tank 10.

[0082] The vacuum rupture hole 32 is located between the first liquid level line 13 and the second liquid level line 14. This is equivalent to the first liquid level line 13 being lower than the vacuum rupture hole 32. The drain pump starts, causing water inside the tank 10 to be discharged through the drain pipe 31 until the level gauge detects that the water level inside the tank 10 has dropped to the first liquid level line 13. At this point, the level gauge transmits the corresponding signal and an alarm signal to the fire control center. The fire control center then issues a shutdown command to the drain pump to stop pumping water from the fire water tank 100 and simultaneously alerts the operators to take immediate action.

[0083] Understandably, the water volume in the fire water tank 100 above the first liquid level line 13 can be used as a cooling medium to supply cooling for HVAC systems. Implementably, the volume of the fire water tank 100 above the first liquid level line 13 can be 100 cubic meters.

[0084] A third liquid level line 15 is also set inside the tank 10, located between the first liquid level line 13 and the second liquid level line 14. The third liquid level line 15 is a liquid level abnormality alarm line. When the level gauge detects that the water level inside the tank 10 has dropped to the third liquid level line 15, it will send an alarm signal to the fire control center, alerting the operator that the fire water tank 100 is malfunctioning. If the operator notices that the water level drop is due to the fire outlet 12 of the fire water tank 100 being opened for firefighting purposes, the alarm signal will stop.

[0085] In addition, the fire water tank 100 is equipped with a fourth liquid level line 16. The fourth liquid level line 16 is the minimum effective water level alarm line, which is lower than the first liquid level line 13 and higher than the fire water outlet 11 of the fire water tank 100. When the level gauge detects that the water level in the tank 10 has fallen to the fourth liquid level line 16, the level gauge sends an alarm signal to the fire control center to remind relevant personnel to take timely action. Furthermore, the fourth liquid level line 16 is located above the fire pump exhaust port to ensure that the fire pump can start quickly and supply water normally in the event of a fire, which helps to improve fire extinguishing efficiency.

[0086] The fire water tank 100 is also equipped with a fifth liquid level line 17. The fifth liquid level line 17 is the highest liquid level alarm line, which is higher than the second liquid level line 14. When the liquid level gauge detects that the water level in the tank 10 is high enough to reach the fifth liquid level line 17, the liquid level gauge sends an alarm signal to the fire control center to remind relevant personnel to take timely action.

[0087] For example, the fire water tank 100 is also provided with an overflow pipe 80, so that when the water level inside the tank 10 is high to the fifth liquid level line 17, the water volume above the fifth liquid level line 17 can flow out to the outside of the tank 10 through the overflow pipe 80.

[0088] The fire water tank 100 also includes a local liquid level display device, which displays the real-time water level inside the tank 10. Furthermore, the local liquid level display device is electrically connected to the fire control center, allowing operators to observe and promptly respond to the water level in the tank, facilitating appropriate operations on the fire water tank 100 and ensuring its reliability.

[0089] It should be noted that the location of the level gauge is not limited; it can be installed either outside or inside the tank 10, as long as the level gauge can monitor the water level inside the tank 10 and trigger an alarm mechanism based on a preset level line, sending the corresponding alarm signal to the fire control center. Furthermore, multiple level gauges can be installed, each monitoring a different level line.

[0090] This application, through the structural design of the fire water tank 100, fully utilizes the HVAC return water, resulting in good energy-saving performance and low cost. The design of the tank body 10 extends its service life, giving it good strength and insulation. The level gauge, first level line 13, and drain pipe 31 within the fire water tank 100 work together to ensure that only water exceeding the first level line 13 is supplied to the HVAC system, guaranteeing a constant water supply for firefighting and ensuring a stable water flow during emergencies. Even if the electric valve malfunctions, a certain amount of water for firefighting remains in the fire water tank 100. Furthermore, the level gauge, multiple level lines, and electric valve allow for timely adjustments when the water level in the tank 10 is insufficient or exceeds the set range, enabling automatic water filling and automatic shut-off.

[0091] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0092] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A fire-fighting water tank, characterized in that, include: The tank body has a first liquid level line and a second liquid level line arranged sequentially from bottom to top along the height direction of the tank body; the tank body is used for storing water; A level gauge is used to monitor the water level inside the tank. Water inlet pipe; An electric valve is installed on the water inlet pipe. The level gauge is electrically connected to the electric valve. When the level gauge detects that the water level inside the tank is lower than the second level line, the electric valve opens to allow water to flow into the tank through the water inlet pipe. When the level gauge detects that the water level inside the tank reaches the second level line, the electric valve closes. A drainage assembly includes a drain pipe and a drain pump. The level gauge is electrically connected to the drain pump. The first level line is lower than the highest point of the drain pipe. The drain pipe is used to discharge water in the tank that is above the first level line to the outside of the tank. When the water level reaches the first level line, the drain pump stops draining.

2. The fire-fighting water tank according to claim 1, characterized in that, The drain pipe includes a bend and a vacuum breaker hole. The first liquid level line is set below the highest point of the bend, and the vacuum breaker hole is located between the first liquid level line and the second liquid level line.

3. The fire-fighting water tank according to claim 1, characterized in that, It includes a vertical main pipe and a water distributor. The vertical main pipe is located inside the tank and is connected to the inlet pipe and the outlet pipe. The vertical main pipe and the water distributor are connected so that water flows through the inlet pipe and the vertical main pipe to the water distributor, and the water distributor distributes the water from top to bottom inside the tank.

4. The fire-fighting water tank according to claim 3, characterized in that, The vertical main pipe includes a first vertical section and a second vertical section. The first vertical section is located above the second vertical section, and the first vertical section and the second vertical section are not connected. The first vertical section is connected to the water inlet pipe, and the second vertical section is connected to the drain pipe.

5. The fire-fighting water tank according to claim 4, characterized in that, A sealing plate is provided between the first vertical segment and the second vertical segment. The sealing plate seals the end of the first vertical segment near the second vertical segment and / or the end of the second vertical segment near the first vertical segment, so that the first vertical segment and the second vertical segment are not connected.

6. The fire-fighting water tank according to claim 5, characterized in that, A heat insulation layer is provided between the first vertical section and the second vertical section; two sealing plates are provided, and the heat insulation layer is provided between the two sealing plates.

7. The fire-fighting water tank according to claim 3, characterized in that, It includes a first support structure and a second support structure, wherein the first support structure is used to support the top of the vertical main pipe and the second support structure is used to support the bottom of the vertical main pipe.

8. The fire-fighting water tank according to claim 1, characterized in that, The inner wall of the tank is provided with an anti-corrosion layer; the outer wall of the tank is provided with an anti-rust layer and a first heat insulation layer.

9. The fire-fighting water tank according to claim 1, characterized in that, The bottom of the tank is provided with a second insulation layer.

10. A water-based cooling system, characterized in that, The system includes a fire control center, a water circulation pipeline, and a fire water tank as described in any one of claims 1 to 9. The fire control center is electrically connected to a level gauge in the fire water tank so that the level gauge can send a signal to the fire control center; the fire control center is electrically connected to an electric valve in the fire water tank so that the fire control center can control the opening and closing of the electric valve; and the fire control center is electrically connected to a drainage pump in the fire water tank so that the fire control center can control the opening and closing of the drainage pump.

11. The water-based cooling system according to claim 10, characterized in that, The fire water tank also includes a third liquid level line, which is located between the first liquid level line and the second liquid level line; when the water level inside the tank reaches the third liquid level line, the level gauge sends an alarm signal to the fire control center.

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