An intelligent coupling scheduling method for rainwater-production water-firefighting water of a factory building

Abstract

The application discloses a rainwater-production water-fire water intelligent coupling scheduling method for a factory building, and belongs to the technical field of water supply and drainage. In order to solve the problems of rainwater waste, high production water cost and deterioration of fire water quality caused by the traditional factory area three water systems being managed separately, the method comprises the following steps: a coupling pipe network connecting a rainwater treatment clear water pool, a production water pool and a fire water pool is constructed; a central processing unit is used to acquire water level, water quality, water price and meteorological data in real time, and a pipe network on-off device and a water supplement branch switch are controlled according to a preset scheduling strategy. The method comprises a rainwater primary production utilization strategy to reduce municipal water consumption, a fire water pool dynamic activation strategy to periodically discharge old water and supplement new water to ensure that fire water storage meets the standard, a fire emergency strategy to lock fire water and use the clear water pool for emergency supply, a multi-water source economic scheduling strategy and a meteorological linkage pre-emptying strategy. The application realizes on-demand scheduling of the three kinds of water resources through hardware interconnection and software cooperation.

Description

Technical Field

[0001] This invention belongs to the field of water supply and drainage technology, specifically relating to an intelligent coupling scheduling method for rainwater, production water, and fire-fighting water in factory buildings. Background Technology

[0002] Modern industrial parks are major water users and face multiple challenges, including water shortages, rising water costs, and significant fire safety responsibilities.

[0003] Currently, in the water system design of most factories, rainwater systems, production water systems, and fire-fighting water systems are typically physically isolated and operate independently. Rainwater systems are often simply collected and discharged directly or after primary treatment, failing to effectively utilize it as an alternative water source. Production water systems rely excessively on municipal tap water or self-supplied well water, resulting in a single water source and a lack of consideration for introducing low-cost alternatives (such as rainwater). Fire-fighting water systems usually have separate fire-fighting water tanks, employing a "replenish only, don't use" static storage model. This leads to the fire-fighting water remaining stagnant for extended periods, causing the water quality to deteriorate rapidly and requiring regular replacement to meet fire safety regulations, resulting in significant water waste and high maintenance costs.

[0004] The aforementioned fragmented system layout not only resulted in the waste of a large amount of high-quality rainwater resources and high production water costs, but more importantly, the stagnant fire-fighting water system posed serious water quality and quantity safety hazards. Furthermore, the lack of a coordinated response mechanism between the various systems meant that in the event of extreme weather leading to insufficient water supply or a sudden fire, the overall water resources could not be allocated and optimally distributed in an emergency. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, this invention provides an intelligent coupled scheduling method for rainwater, production water, and fire-fighting water in factory buildings. The specific solution of this invention is as follows:

[0006] To effectively address the fundamental technical problem of the physical isolation and inability to interconnect and allocate the three major water systems in the existing factory, this method requires the initial construction of a coupled pipe network. This network has three independent connecting pipes: one connecting the rainwater treatment system outlet (clear water tank) to the production water tank; another connecting the clear water tank to the fire-fighting water tank; and the third connecting the fire-fighting water tank to the production water tank. The purpose of this design is to break down the existing physical barriers. Based on this architecture, this method uses a pre-set central processing unit to acquire real-time operational status data such as water level, quantity, and quality of each system. It then automatically matches logical instructions based on a built-in scheduling strategy library to control the on / off devices on the three independent connecting pipes and the switching actions of each water supply branch. This "physical interconnection + logical control" implementation fundamentally changes the traditional situation where the systems cannot interact, enabling the three water resources to achieve on-demand mutual assistance and flexible switching under the coordination of the central processing unit, effectively solving the problem of isolated operation.

[0007] To ensure that each water source flows precisely to its intended target unit during transmission, this method employs a refined configuration of the coupled pipe network: a first control valve is installed between the clear water tank and the production water tank; a second control valve is installed between the clear water tank and the fire water tank; and a third control valve is installed between the fire water tank and the production water tank. Furthermore, the municipal water supply pipe connects to the production water tank and the fire water tank via pipelines equipped with fourth and fifth control valves, respectively. Through the independent coordination of these five control valves, a fully controllable network structure is constructed within the pipe network. During allocation, the central processing unit can precisely issue linkage switching commands to these five valves, thereby ensuring the accurate execution of various on-demand water flow switching actions, such as direct rainwater supply to production, rainwater replenishment for fire protection, fire water discharge to production, and emergency municipal water injection.

[0008] To effectively address the problem of significant waste of high-quality rainwater and over-reliance on expensive municipal water for production, this method introduces a rainwater-priority production utilization strategy. In specific control, once the central processing unit determines that the water level in the clear water tank is higher than the preset low production water level threshold, and the treated rainwater meets the standards, the system will generate and execute instructions to open the first control valve and close the fourth control valve. Through this process setting, the qualified rainwater will be directly transported to the production water tank to replace municipal water replenishment. The operating principle of this strategy is to use rainwater to replace tap water, which can effectively reduce the high municipal water costs in actual industrial operation, truly achieving the goal of water conservation and cost reduction.

[0009] To effectively address the technical challenges of water quality deterioration and wasted water during regular fire-fighting water tank replacements due to prolonged stagnation caused by "replenishment without use," this method incorporates a dynamic activation step for the fire-fighting water tank. This procedure is initiated when the system determines that the water level in the fire-fighting water tank exceeds a preset high-level threshold and water quality indicators are out of standard, or when the storage time exceeds a preset effective period. The process involves: first, opening the third control valve to divert some of the stored water in the fire-fighting water tank to the production water tank for consumption; simultaneously, depending on the clear water tank level, either opening the second control valve to replenish with rainwater or opening the fifth control valve to replenish with municipal water, until the water level in the tank returns to the preset safe high level. This step, based on the "replenishment with new water" cycle principle, keeps the fire-fighting water flowing instead of solidifying, effectively avoiding the risk of water quality deterioration in conventional fire-fighting water tanks and eliminating the significant waste caused by periodic full tank replacements.

[0010] To ensure the absolute safety of fire-fighting water supply in the event of an extreme fire and to eliminate the potential for water consumption during daily production, this method establishes fire emergency response procedures. When the central processing unit receives a fire alarm signal, it immediately executes the instruction to close the third control valve, physically cutting off all outlets from the fire water tank to the production pipeline network and forcibly locking its water volume, ensuring that the fire pump sets have sufficient backup capacity when supplying water to the fire pipeline network. Simultaneously, if the fire water tank level is detected to be critically low during the water supply process and the clear water tank has sufficient replenishment capacity, the second control valve and standby pump are automatically activated, using the clear water tank as an emergency supplement to the fire water source. This mechanism effectively enhances the plant's resilience and continuous water supply guarantee capabilities in the event of a fire.

[0011] To effectively control the overall operating costs of the plant and avoid indiscriminate consumption of high-cost municipal water resources, this method constructs a multi-source economic scheduling strategy. When making water replenishment decisions, the central processing unit (CPU) correlates municipal water price information, rainwater storage tank inventory information, and production water demand information in real time to perform comprehensive cost calculations. When it is determined that the rainwater storage is sufficient and the municipal water price is higher than a preset economic threshold, the first or second control valve is opened first to utilize rainwater; otherwise, the fourth or fifth control valve is opened first to utilize municipal water. This scheduling logic incorporates dynamic economic considerations into water resource utilization, ensuring that the plant's water replenishment costs are always in a relatively optimal state.

[0012] To prevent rainwater wastage and drainage pressure caused by rainwater storage tank overflows during future heavy rainfall, this method introduces a meteorological-linked scheduling mechanism. The central processing unit receives weather forecast data, and when rainfall is predicted within a preset period and the remaining effective volume of the rainwater storage tank is insufficient, the system generates instructions in advance to lower the current water level of the rainwater storage tank, thereby freeing up effective storage capacity to receive subsequent rainwater. This pre-emptive emptying setting using meteorological data can maximize the collection efficiency of rainwater resources during rainfall periods and avoid waste.

[0013] To ensure that the activation step of the fire-fighting water system is triggered based on objective quantitative criteria and to avoid blindly changing water based on intuition, this method requires that the real-time monitoring data of the fire-fighting system must include one or more indicators from the water quality monitoring sensors in the fire-fighting water tank, such as residual chlorine, turbidity, pH value, or total dissolved solids. Simultaneously, the system is pre-set with national standard water quality thresholds for current industrial or fire-fighting water. The central processing unit dynamically compares the collected water quality data with the pre-set standards. When the detected actual water quality data exceeds the standard threshold, the dynamic activation step is triggered. This quantitative control method ensures the long-term safety and compliance of the water quality in the fire-fighting water tank from a fundamental technical perspective.

[0014] To avoid disrupting normal production activities during the activation of old fire-fighting water, this method sets reasonable preset conditions for the activation cycle. Specifically, the preset effective period is a fixed operating cycle set by the system based on historical water usage data; the preset high water level threshold is set to a level greater than 85% of the total volume of the fire-fighting water tank; and the safe recovery high level is set between 90% and 95% of the total volume. Furthermore, the activation procedure is specifically scheduled during preset low-peak production water usage periods. This time constraint ensures that the activation and replacement process avoids production water usage peaks and does not disrupt normal production water pressure.

[0015] To further optimize the stability of the activation and replacement process and prevent network fluctuations caused by large influxes, this method incorporates a pre-activation verification mechanism. Before executing the command to open the third control valve, the central processing unit first verifies whether the current production water tank is in a low-load standby state. Only when it is confirmed that the production load is below a preset threshold will the system issue a command to open the third control valve at a low flow rate below the rated operating flow rate of the production water system. This dual stable replacement method of "low load + low flow" effectively prevents hydraulic shock when fire water flows into the production network, ensuring the absolute safety of the fire water renewal process and the stability of system operation.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Break down traditional system barriers to achieve deep interconnection of water resources.

[0018] This application fundamentally solves the operational drawbacks of traditional factory buildings where the three major water systems operate independently and are physically isolated, by constructing a coupled pipe network connecting the rainwater treatment system, production water tanks, and fire-fighting water tanks, and equipped with intelligent on / off control logic. This solution enables water resources of different uses and sources to achieve on-demand mutual support and flexible switching under the unified scheduling of the central processor, laying the physical and logical foundation for the efficient and coordinated operation of the overall water system of the factory area.

[0019] 2. Turning waste into treasure significantly saves water and greatly reduces production costs.

[0020] This application utilizes a "rainwater-first production utilization strategy" to transform initial and subsequent rainwater resources, which are prone to being wasted or even require costly treatment, into production water that can stably replace municipal water sources. This not only effectively reduces the factory's dependence on municipal tap water and significantly lowers water costs associated with daily production, but also greatly reduces the pressure on municipal pipe networks from rainwater discharge, aligning with the concepts of green factories and sustainable development.

[0021] 3. Eliminate the hidden danger of stagnant water in fire protection, improve water safety and conserve water resources.

[0022] Addressing the technical challenges of traditional fire water tanks, such as water quality deterioration due to long-term stagnation and the waste caused by periodic emptying and water replacement, this application presents a unique "dynamic activation strategy for fire water tanks" that integrates fire water storage circulation into the production water system. By periodically discharging old fire water into the production pipeline for consumption and timely replenishing it with treated rainwater or municipal water, this approach ensures that the fire water storage is always in a sufficient and compliant usable state, while avoiding the significant water waste caused by periodic sewage discharge and water replacement.

[0023] 4. Establish a rapid emergency response mechanism to enhance resilience.

[0024] This application establishes a rigid fire emergency response mechanism. In the event of a fire, the central processing unit immediately locks the water level in the fire water tank with the highest priority and continuously monitors the pipeline pressure. In extreme water shortage situations, qualified rainwater from the clear water tank can be automatically and quickly pumped into the fire water network as an emergency supplementary water source. This "main and backup combined" continuous water supply guarantee mode significantly improves the plant's safety resilience in the face of emergencies such as fires.

[0025] 5. Integrate multi-dimensional data to achieve unmanned intelligent integrated scheduling.

[0026] This application relies on a central processing unit to perform real-time sensing and comprehensive calculation of multi-dimensional data such as water level, water quality, municipal water price, and weather forecasts. It can automatically execute forward-looking strategies such as "multi-source economic scheduling" and "weather-based pre-drainage." This makes plant water resource management no longer dependent on manual experience and passive response, but achieves automated, precise, and cost-optimized operation and maintenance, significantly reducing manual management costs and possessing extremely high industrial application and promotion value. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1This is a schematic diagram of the overall structure of an intelligent coupling scheduling system for rainwater, production water, and fire-fighting water in a factory, according to the present invention.

[0029] The markings in the diagram include: 1. Rainwater harvesting facility; 2. Initial diversion device; 3. Rainwater storage tank; 4. Rainwater treatment device; 5. Clear water tank; 6. Production water tank; 7. Production water point; 8. Fire water tank; 9. Fire pump set; 10. Fire pipeline network; 11. Municipal water supply pipe; 12. Intelligent monitoring and dispatch center; 13. Data acquisition module; 14. Central processing unit; and the first control valve V1, second control valve V2, third control valve V3, fourth control valve V4, and fifth control valve V5 on each pipeline. Detailed Implementation

[0030] The present invention will now be described more fully with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] like Figure 1 As shown, this invention provides a specific embodiment of an intelligent coupled scheduling system for rainwater, production water, and fire-fighting water in a factory. The system mainly includes a rainwater collection and treatment section, a production water section, a fire-fighting water section, a coupled pipe network, and an intelligent monitoring and scheduling center 12.

[0033] In the rainwater collection and treatment section, rainwater from the factory roof and surrounding area is collected through rainwater collection facility 1. The collected rainwater first passes through initial diversion device 2, where the more heavily polluted initial rainwater is discharged into the sewage network, while the cleaner rainwater then enters rainwater storage tank 3 for temporary storage. When needed, the water in rainwater storage tank 3 is pumped into rainwater treatment device 4 for treatment. In this embodiment, rainwater treatment device 4 preferably employs a mature process of "automatic flocculation + sand filtration + sodium hypochlorite disinfection" to ensure stable and compliant effluent quality. The treated, qualified rainwater is finally stored in clear water tank 5.

[0034] The factory's production water system retains the original production water tank 6, production water pipeline network 7, and production water points. The fire-fighting water system retains the original fire-fighting water tank 8, fire pump set 9, and fire-fighting pipeline network 10.

[0035] The core of this invention lies in the construction of an intelligent coupled pipe network system. The specific connection relationships are as follows: the first connecting pipe connects the outlet of the clear water tank 5 to the production water tank 6, and is equipped with a first control valve V1; the second connecting pipe connects the outlet of the clear water tank 5 to the fire water tank 8, and is equipped with a second control valve V2; the third connecting pipe connects the bottom of the fire water tank 8 (through an independent activated outlet) to the production water tank 6, and is equipped with a third control valve V3. Furthermore, the municipal water supply pipe 11 serves as an external supplementary water source, connecting to the production water tank 6 via a branch equipped with a fourth control valve V4, and to the fire water tank 8 via a branch equipped with a fifth control valve V5.

[0036] The intelligent monitoring and dispatch center 12 is the control hub of this system. It includes a data acquisition module 13, a central processing unit 14, and a built-in dispatch strategy library (not shown in the figure). The data acquisition module 13 acquires real-time system operation status data through level gauges deployed in various water tanks (such as rainwater storage tank 3, clear water tank 5, fire water tank 8, and production water tank 6), flow meters and pressure sensors on the pipeline network, and online water quality analyzers in the water tanks (especially sensors installed in fire water tank 8 to monitor indicators such as residual chlorine, turbidity, pH value, and TDS). The central processing unit 14 is connected to the data acquisition module and the dispatch strategy library, and is used to generate dispatch instructions based on real-time data and preset strategies. It is also connected to various control valves (V1 to V5) and water pumps (such as fire pump group 9, rainwater lift pump, etc.) to execute the dispatch instructions.

[0037] In a typical operating embodiment, the system primarily executes the "dynamic activation strategy for the fire water tank" during normal, rainless periods. For example, based on a preset fixed operating cycle within the system, the central processing unit 14 prioritizes identifying whether the current period is a preset low-peak period for production water use. After confirming that it is a low-peak period, if the data acquisition module 13 determines that the water level in the fire water tank 8 is higher than 90% of the total volume (a preset high water level threshold), it automatically generates a command to open the third control valve V3. At this time, the water in the fire water tank 8 is smoothly delivered to the production water tank 6 at a low flow rate, lower than the rated operating flow rate of the production system, under the action of gravity or micro-pumping, for the consumption of the plant's production. At the same time, the central processing unit 14 makes a decision based on the liquid level of the clear water tank 5: if the water level in the clear water tank 5 is higher than 50% of the total volume, it opens the second control valve V2 to replenish the fire water tank 8 with treated rainwater; if the water level in the clear water tank 5 is insufficient, it opens the fifth control valve V5 to replenish a small amount of municipal water. This process continues until the water level in fire water tank 8 returns to 95% of its total volume (preset safe high level). Throughout the activation process, the system continuously monitors the water quality flowing out of the fire water tank to ensure that the water entering the production pipeline meets the requirements. In this way, the fire water storage is regularly renewed, effectively preventing water quality deterioration.

[0038] During rainfall, the system prioritizes the "rainwater-first production and utilization strategy." A large amount of rainwater is collected, treated, and stored in the clear water tank 5. When the central processing unit 14 detects through the data acquisition module 13 that the water level in the clear water tank 5 is higher than the preset low production water level threshold, and the water quality sensor data shows that the water quality meets the standards, the system generates a control command to gradually open the first control valve V1, using the treated rainwater to supply production water. Simultaneously, the fourth control valve V4 is closed to cut off municipal water supply, thereby maximizing the substitution of rainwater for municipal water use.

[0039] When a fire occurs in the factory area, once the central processing unit 14 receives a hard-wired fire alarm signal from the fire alarm system, it will immediately and unconditionally execute the "fire emergency response strategy." The system instantly generates and executes an instruction to close the third control valve V3, stopping all water intake from the fire water tank 8 and locking its entire water volume. At the same time, the central processing unit 14 monitors the starting status of the fire pump set 9 and the pressure of the fire pipeline network 10. If, during the full-capacity operation of the fire pump set 9, the water volume in the fire water tank 8 is detected to drop rapidly to a low level, and the clear water tank 5 has usable water, the system automatically generates an instruction to open the second control valve V2 and start the emergency backup pump connected to the clear water tank 5. The water in the clear water tank 5 is used as an emergency supplementary water source to pressurize and supply water to the fire pipeline network 10, ensuring the continuity and reliability of fire-fighting water supply.

[0040] In addition, the system will also implement a "multi-source economic dispatch strategy" during daily operation. The central processing unit 14 obtains information such as municipal water price, rainwater storage, and production demand in real time and performs comprehensive calculations. For example, when rainfall is abundant and the municipal water price is at the peak electricity / water price level, the system will prioritize opening the first control valve V1 or the second control valve V2 to utilize rainwater to meet the water supply needs for production and fire fighting; otherwise, it will appropriately increase the proportion of municipal water used.

[0041] Meanwhile, the system also has a "meteorological linkage dispatch function". The central processing unit 14 receives weather forecast data through a communication interface. When heavy rainfall is predicted to occur within the next 24 hours, and the remaining effective volume of the current rainwater storage tank 3 is insufficient to accommodate all the rainwater, the central processing unit 14 will generate instructions in advance to start the drainage pump to empty part of the water stored in the rainwater storage tank 3, while ensuring the safety of downstream drainage. This will free up effective storage capacity to accommodate subsequent rainwater, maximize the collection of subsequent rainwater resources, and reduce rainwater discharge.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for intelligent coupling scheduling of rainwater, production water, and fire-fighting water in a factory, characterized in that, Includes the following steps: A coupled pipe network is constructed, which is provided with three independent connecting pipes: one connecting the outlet of the clear water tank of the rainwater treatment system to the production water tank, one connecting the clear water tank to the fire water tank, and one connecting the fire water tank to the production water tank. Real-time acquisition of operational status data for rainwater treatment systems, production water systems, and fire-fighting water systems; Using the central processing unit, control instructions are generated based on the operating status data and a preset scheduling strategy library; According to the control command, the on / off devices corresponding to the three independent connecting pipelines and the switching status of each system water supply branch are controlled to realize on-demand interconnection and switching between rainwater, production water and fire-fighting water.

2. The intelligent coupled scheduling method according to claim 1, characterized in that, The coupling pipeline network specifically comprises: a first control valve installed between the clear water tank and the production water tank; a second control valve installed between the clear water tank and the fire water tank; and a third control valve installed between the fire water tank and the production water tank; municipal water supply pipes are connected to the production water tank and the fire water tank respectively through pipelines equipped with a fourth control valve and a fifth control valve; the control command is an interlocking switch command for the first to fifth control valves.

3. The intelligent coupled scheduling method according to claim 1, characterized in that, It also includes a rainwater priority production and utilization step: when the central processing unit determines, based on the operating status data, that the water level in the clear water tank is higher than the preset low production water level threshold and the rainwater quality meets the standards, it generates and executes an instruction to open the first control valve and close the fourth control valve, so as to prioritize the use of treated rainwater to supply production water and replace municipal water replenishment.

4. The intelligent coupled scheduling method according to claim 2, characterized in that, It also includes a dynamic activation step for the fire water tank: when the central processing unit determines that the water level of the fire water tank is higher than the preset high water level threshold and the water quality indicators exceed the standard, or the water storage time exceeds the preset time period, it generates and executes an instruction to open the third control valve to divert part of the stored water in the fire water tank to the production water tank for consumption; at the same time, according to the liquid level status of the clear water tank, it selectively opens the second control valve to replenish water with rainwater, or opens the fifth control valve to replenish water with municipal water source, until the water level of the fire water tank is restored to the preset safe high level.

5. The intelligent coupled scheduling method according to claim 1, characterized in that, It also includes fire emergency response steps: when the central processing unit receives a fire alarm signal, it immediately executes the instruction to close the third control valve and locks the water volume of the fire water tank to prioritize the supply of water from the fire pump set to the fire pipeline network; If the water level in the fire water tank is found to be insufficient during the water supply process and the clear water tank has the capacity to replenish water, then an instruction to open the second control valve and start the emergency backup pump is generated and executed, so that the clear water tank can be used as an emergency supplement to the fire water source.

6. The intelligent coupled scheduling method according to claim 2, characterized in that, It also includes a multi-source economic scheduling step: the central processor obtains municipal water price information, rainwater storage information and production water demand information in real time, and issues scheduling instructions to the fourth control valve and the fifth control valve after comprehensive calculation; when it is determined that the rainwater storage is sufficient and the municipal water price is higher than the preset economic threshold, the first control valve or the second control valve is opened first to utilize the rainwater, otherwise the fourth control valve or the fifth control valve is opened first to utilize the municipal water source.

7. The intelligent coupled scheduling method according to claim 1, characterized in that, It also includes a meteorological linkage scheduling step: the central processing unit accesses weather forecast data, and when it predicts that there will be rainfall within a preset period and the remaining effective volume of the rainwater storage tank is insufficient, the central processing unit generates an advance drainage instruction to lower the current water level of the rainwater storage tank in order to make room for subsequent rainwater in advance.

8. The intelligent coupling scheduling method according to claim 2, characterized in that, The real-time acquired operating status data of the fire water system includes water quality data collected by water quality monitoring sensors installed in the fire water tank, which includes at least one or more of the following: residual chlorine, turbidity, pH value, or total dissolved solids. When the central processing unit determines that the water quality data exceeds the preset threshold of industrial water or fire water quality standards, it triggers the execution of the dynamic activation step described in claim 4.

9. The intelligent coupled scheduling method according to claim 4, characterized in that, The preset time period is a fixed operating cycle set by the system based on historical water usage data. The preset high water level threshold is a water level value greater than 85% of the total volume of the fire water tank. The preset safe high level is between 90% and 95% of the total volume of the fire water tank. The timing of the dynamic activation step is selected during the preset low-peak period of production water usage.

10. The intelligent coupled scheduling method according to claim 9, characterized in that, In the dynamic activation step, before triggering the execution of the activation program, the central processing unit further verifies whether the current production water tank is in a low-load standby state. Once it is confirmed that the production load is lower than the preset threshold, the central processing unit generates an instruction to open the third control valve at a low flow rate lower than the rated operating flow rate of the production water system, so as to complete the fire water replacement in a smooth replacement manner.

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