Automatic water replenishing device for fire-fighting storage tank
By combining a float valve and a differential pressure regulating valve, the problem of manual operation required for traditional fire-fighting storage tanks is solved, enabling automatic water level control, improving safety and reducing resource waste.
Patent Information
- Application Number
- CN202520019275.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Traditional fire-fighting storage tanks require manual operation during use to prevent water replenishment when the liquid level is below the minimum level and overflow when the liquid level is above the maximum level, which poses safety hazards and wastes resources.
The system employs a combination of a float valve and a differential pressure regulating valve. By controlling the pipe diameter and pressure regulating components, it achieves automatic control of water replenishment in the fire-fighting storage tank, ensuring that the water level remains within the set range.
It enables automatic water replenishment of fire-fighting storage tanks, improves safety, avoids the hidden dangers caused by manual operation, and reduces water waste.
Smart Images
Figure CN223760287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection building technology, specifically to an automatic water replenishment device for fire storage tanks. Background Technology
[0002] As is well known, enterprises in the petroleum and chemical industries must be equipped with comprehensive fire-fighting equipment, and most petroleum and chemical enterprises also have their own fire-fighting storage tanks to ensure sufficient fire-fighting water. To ensure fire safety, the fire-fighting water in the storage tanks needs to be maintained at the maximum water level in the tanks.
[0003] However, during the use of traditional fire-fighting storage tanks, when the water level in the tank falls below the minimum replenishment level, the operator needs to replenish the water in the tank in a timely manner, otherwise it may cause serious fire hazards and losses. At the same time, it is necessary to prevent the water level in the fire-fighting storage tank from exceeding the maximum level to avoid the tank overflowing and causing waste. Utility Model Content
[0004] This utility model addresses the deficiencies in existing technologies by providing an automatic water replenishment device for fire-fighting storage tanks, which enables automatic water replenishment of fire-fighting storage tanks, maintaining the fire-fighting water level in the tanks at the highest possible level.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automatic water replenishment device for a fire-fighting storage tank includes a fire-fighting storage tank and a water replenishment pipe connected to the fire-fighting storage tank. The fire-fighting storage tank and the water replenishment pipe are connected via a first pipe and a second pipe. A float valve is provided at one end of the first pipe extending into the fire-fighting storage tank. A differential pressure regulating valve is connected between the water replenishment pipe, the first pipe, and the second pipe. The differential pressure regulating valve has a first chamber, a second chamber, a third chamber, and a valve core that controls whether the first chamber, the second chamber, and the third chamber are connected. The differential pressure regulating valve is provided with a pressure regulating element that adjusts the opening pressure of the valve core. The first chamber is connected to the first pipe through the pressure regulating element, the second chamber is connected to the second pipe, and the third chamber is connected to the water replenishment pipe. The diameter of the water replenishment pipe is L1, the diameter of the first pipe is L2, and the diameter of the second pipe is L3. The relationship between the diameters L1 and L3 is: L1≥L3>L2. By setting the pipe diameters L1≥L3>L2 and the pressure regulating component, when the water level in the fire storage tank reaches the set maximum water level, the float valve closes, and the pressure generated by the first pipeline presses the valve core tightly, preventing fire water from entering the fire storage tank through the first and second chambers. When the water level in the fire storage tank is lower than the set maximum water level, the float descends, the float valve opens, and the pressure generated by the first pipeline cannot press the valve core tightly, so the valve core opens partially, and fire water enters the fire storage tank through the first and second chambers. When the water level in the fire storage tank drops to the maximum opening of the float valve, the valve core is fully open, and fire water enters the fire storage tank through the first and second chambers, thus solving the problem of automatic water replenishment in the fire storage tank.
[0007] As a preferred embodiment, the second pipeline connects to the fire-fighting storage tank at a higher position than the first pipeline connects to the fire-fighting storage tank.
[0008] As a preferred embodiment, the first pipe extends from above the maximum water level of the fire-fighting storage tank, and the second pipe extends from the top of the fire-fighting storage tank.
[0009] As a preferred embodiment, the pressure regulating element is a pressure regulating valve.
[0010] As a preferred embodiment, the differential pressure regulating valve is further provided with a first pressure gauge and a second pressure gauge, wherein the first pressure gauge is used to detect the pressure of the second chamber and the second pressure gauge is used to detect the pressure of the third chamber.
[0011] As a preferred embodiment, the water supply pipe is equipped with a filter and a first valve.
[0012] As a preferred embodiment, a second valve is provided on the second pipeline.
[0013] As a preferred embodiment, the fire-fighting storage tank is provided with an exhaust port at its top.
[0014] As a preferred embodiment, the fire-fighting storage tank is equipped with a maximum water supply line and a minimum water supply line based on the highest and lowest positions of the float within the tank.
[0015] As a preferred embodiment, the fire-fighting storage tank is provided with an overflow port at the same height as the highest water replenishment level, and the overflow port is connected to an overflow pipe that communicates with the outside.
[0016] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, by setting a pipe diameter L1≥L3>L2 and a pressure regulating component, when the water level in the fire-fighting storage tank reaches the set maximum water level, the float valve closes, and the pressure generated by the first pipeline presses the valve core tightly, preventing fire-fighting water from entering the fire-fighting storage tank through the first and second chambers. When the water level in the fire-fighting storage tank is lower than the set maximum water level, the float descends, the float valve opens, and the pressure generated by the first pipeline cannot press the valve core tightly, so the valve core opens partially, allowing fire-fighting water to enter the fire-fighting storage tank through the first and second chambers. When the water level in the fire-fighting storage tank drops to the maximum opening of the float valve, the valve core is fully open, allowing fire-fighting water to enter the fire-fighting storage tank through the first and second chambers, thus achieving automatic water replenishment of the fire-fighting storage tank, improving safety, and reducing water waste.
[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structural connection of an embodiment of the present utility model;
[0019] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0020] Explanation of reference numerals in the attached diagram:
[0021] 10-Water supply pipe; 11-Filter; 12-First valve; 13-First chamber; 14-First pressure gauge; 15-Second chamber; 16-Second pressure gauge; 17-Valve core; 18-Pressure regulating valve; 19-Third chamber; 20-First pipeline; 21-Float valve;
[0022] 30 - Second pipeline; 31 - Second valve;
[0023] 40-Fire storage tank; 41-Exhaust port; 42-Highest water supply level; 43-Lowest water supply level; 44-Overflow port; 45-Overflow pipe; 46-Support; 47-Bottom drain valve. Detailed Implementation
[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] like Figure 1-2As shown, this utility model discloses an automatic water replenishment device for a fire-fighting storage tank, including a fire-fighting storage tank 40 and a water replenishment pipe 10 connected to the fire-fighting storage tank 40. The fire-fighting storage tank 40 and the water replenishment pipe 10 are connected by a first pipe 20 and a second pipe 30. A float valve 21 is provided at one end of the first pipe 20 extending into the fire-fighting storage tank 40. A differential pressure regulating valve is connected between the water replenishment pipe 10, the first pipe 20, and the second pipe 30. The differential pressure regulating valve has a first chamber 13, a second chamber 15, a third chamber 19, and a valve core 17 that controls whether the first chamber 13, the second chamber 15, and the third chamber 19 are connected. The differential pressure regulating valve is provided with a pressure regulating element that adjusts the opening pressure of the valve core 17. The first chamber 13 is connected to the first pipe 20 through the pressure regulating element, the second chamber 15 is connected to the second pipe 30, and the third chamber is connected to the water replenishment pipe 10. The diameter L1 of the water replenishment pipe 10 is equal to that of the first pipe 20. The relationship between pipe diameter L2 and pipe diameter L3 of the second pipe 30 is: L1≥L3>L2. By setting pipe diameter L1≥L3>L2 and pressure regulating components, when the water level in the fire storage tank 40 reaches the set maximum water level, the float valve 21 closes, and the pressure generated by the first pipe 20 presses the valve core 17 tightly, preventing fire water from entering the fire storage tank 40 through the first chamber 13 and the second chamber 15. When the water level in the fire storage tank 40 is lower than the set maximum water level, the float descends, the float valve 21 opens, and the pressure generated by the first pipe 20 cannot press the valve core 17 tightly, so the valve core 17 opens partially, and fire water enters the fire storage tank 40 through the first chamber 13 and the second chamber 15. When the water level in the fire storage tank 40 drops to the maximum opening of the float valve 21, the valve core 17 is fully open, and fire water enters the fire storage tank 40 through the first chamber 13 and the second chamber 15, thus solving the problem of automatic water replenishment in the fire storage tank 40.
[0027] In this utility model, the bottom of the fire storage tank 40 is provided with a bottom drain valve 47. By setting the bottom drain valve 47, the dirt in the fire storage tank 40 can be discharged, making it easy to clean.
[0028] In this utility model, the outer wall of the fire storage tank 40 is provided with a bracket 46 to facilitate the fixing of the overflow pipe 45.
[0029] The second pipe 30 is connected to the fire storage tank 40 at a higher position than the first pipe 20 is connected to the fire storage tank 40; the first pipe 20 extends from above the maximum water level of the fire storage tank 40, and the second pipe 30 extends from the top of the fire storage tank 40; by setting the position of the second pipe 30 connected to the fire storage tank 40 to be higher than the position of the first pipe 20 connected to the fire storage tank 40, the pressure of the second pipe 30 is greater than the pressure of the first pipe 20 when the float valve 21 is not fully open, thereby improving the blocking effect of the valve core 17.
[0030] The pressure regulating component is a pressure regulating valve 18; the differential pressure regulating valve is also equipped with a first pressure gauge 14 and a second pressure gauge 16, the first pressure gauge 14 is used to detect the pressure of the second chamber 15, and the second pressure gauge 16 is used to detect the pressure of the third chamber 19; by setting the pressure regulating valve 18, the pressure at which the control valve core 17 opens can be adjusted.
[0031] It should be understood that, in order to save costs, the pressure regulating valve 18 can also be configured as a spring.
[0032] The water supply pipe 10 is equipped with a filter 11 and a first valve 12. The filter 11 can filter the fire water to avoid blockage; the first valve 12 can control the connection status of the water supply pipe 10.
[0033] The second pipeline 30 is equipped with a second valve 31; by setting the second valve 31, the connection status between the second pipeline 30 and the fire storage tank 40 can be controlled.
[0034] The fire-fighting storage tank 40 has an exhaust port 41 at its top; by setting the exhaust port 41, excessive internal pressure in the fire-fighting storage tank 40 can be avoided.
[0035] The fire-fighting storage tank 40 is equipped with a maximum water supply level line 42 and a minimum water supply level line 43 according to the highest and lowest positions of the float in the fire-fighting storage tank 40; the fire-fighting storage tank 40 has an overflow port 44 at the same height as the maximum water supply level line 42, and the overflow port 44 is connected to an overflow pipe 45 that connects to the outside; by setting the overflow pipe 45, the liquid level in the fire-fighting storage tank 40 can be maintained at the maximum water supply level line 42.
[0036] The method of using this utility model is as follows: Open the first valve 12 and the second valve 31. When the liquid level in the fire storage tank 40 is at the highest water replenishment level 42, the float valve 21 closes. The pressure generated by the first pipe 20 presses the valve core 17 tightly, preventing fire water from entering the fire storage tank 40 through the first pipe 20 and the second pipe 30. When the liquid level in the fire storage tank 40 is between the highest water replenishment level 42 and the lowest water replenishment level 43, the valve core 17 opens partially, allowing a small amount of fire water to enter the fire storage tank 40 from the first pipe 20 and the second pipe 30 for slow replenishment. When the liquid level in the fire storage tank 40 is below the lowest water replenishment level 43, the float valve 21 opens completely, and the valve core 17 opens to its maximum, allowing a large amount of fire water to enter the fire storage tank 40 from the first pipe 20 and the second pipe 30 for rapid water replenishment.
[0037] In summary, this utility model, by setting a pipe diameter L1≥L3>L2 and a pressure regulating component, ensures that when the water level in the fire storage tank 40 reaches the set maximum water level, the float valve 21 closes, and the pressure generated by the first pipe 20 presses the valve core 17 tightly, preventing fire water from entering the fire storage tank 40 through the first chamber 13 and the second chamber 15. When the water level in the fire storage tank 40 is lower than the set maximum water level, the float descends, the float valve 21 opens, and the pressure generated by the first pipe 20 cannot press the valve core 17 tightly, causing the valve core 17 to open partially, allowing fire water to enter the fire storage tank 40 through the first chamber 13 and the second chamber 15. When the water level in the fire storage tank 40 drops to the maximum opening of the float valve 21, the valve core 17 fully opens, allowing fire water to enter the fire storage tank 40 through the first chamber 13 and the second chamber 15, thus achieving automatic water replenishment of the fire storage tank 40, improving safety, and reducing water waste.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. An automatic water replenishing device for a fire water storage tank, comprising a fire water storage tank and a water replenishing pipe connected to the fire water storage tank, characterized in that: The fire-fighting storage tank and the water supplement pipe are communicated through a first pipe and a second pipe, one end of the first pipe extending into the fire-fighting storage tank is provided with a float ball valve, the water supplement pipe is connected with the first pipe and the second pipe through a differential pressure regulating valve, the differential pressure regulating valve has a first chamber, a second chamber, a third chamber and a valve core for controlling whether the first chamber, the second chamber and the third chamber are communicated, the differential pressure regulating valve is provided with a pressure adjusting member for adjusting the opening pressure of the valve core, the first chamber is communicated with the first pipe through the pressure adjusting member, the second chamber is communicated with the second pipe, the third chamber is communicated with the water supplement pipe, and the size relationship among the pipe diameter L1 of the water supplement pipe, the pipe diameter L2 of the first pipe and the pipe diameter L3 of the second pipe is L1≥L3>L2.
2. The automatic water replenishing device for fire-fighting storage tank according to claim 1, characterized in that, The position where the second pipe communicates with the fire-fighting storage tank is higher than the position where the first pipe communicates with the fire-fighting storage tank.
3. The automatic water replenishing device for fire-fighting storage tank according to claim 2, characterized in that, The first pipe extends into the fire-fighting storage tank from above the maximum water storage level of the fire-fighting storage tank, and the second pipe extends into the fire-fighting storage tank from the top of the fire-fighting storage tank.
4. The automatic water replenishing device for fire-fighting storage tank according to claim 1, characterized in that, The pressure adjusting member is a pressure regulating valve.
5. The automatic water replenishment device for fire service storage tank according to claim 4, characterized in that, The differential pressure regulating valve is further provided with a first pressure gauge and a second pressure gauge, the first pressure gauge is used for detecting the pressure of the second chamber, and the second pressure gauge is used for detecting the pressure of the third chamber.
6. The automatic water replenishment device for fire service storage tank according to claim 1, characterized in that, The water supplement pipe is provided with a filter and a first valve.
7. The automatic water replenishing device for fire-fighting storage tank according to claim 1, characterized in that, The second pipe is provided with a second valve.
8. The automatic water replenishing device for fire-fighting storage tank according to claim 1, characterized in that, The fire-fighting storage tank is provided with an exhaust port at the top end.
9. The automatic water replenishment device for fire service storage tank according to claim 1, characterized in that, The fire-fighting storage tank is provided with a highest water supplement level line and a lowest water supplement level line according to the highest position and the lowest position of the float ball in the fire-fighting storage tank.
10. The automatic water replenishment device for fire service storage tanks of claim 9, wherein, The fire-fighting storage tank is provided with an overflow port with the same height as the highest water supplement level line, and the overflow port is inserted with an overflow pipe for communicating with the outside.