A sealing and predictive scheduling method based on hdpe-pex water cavity catheter
Patent Information
- Application Number
- CN202610878548.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-17
- Publication Date
- 2026-10-09
AI Technical Summary
[0002]在建筑微储能系统中,当水腔(储能介质)与24V直流母线(电力传输通道)集成于同一储能砖内时,如何同时克服以下四方面矛盾——水与电共存带来的漏电及短路安全隐患、不同材料(HDPE内胆与铝砖壁)在潮湿与电场环境下产生的电化学腐蚀风险、水路与电路接口在频繁插拔维护过程中难以快速达到高等级(IP68)密封的工程瓶颈,以及传统储能系统依赖云端调度、在断网或应急状态下无法独立做出前瞻性补水补电决策的智能化缺陷
[0014]本发明提供一种基于HDPE-PEX水腔导管的密封与预测性调度方法,具备以下有益效果:通过HDPE一体吹塑无缝内胆、PEX铝塑复合导管及其铝层接地、以及硅胶弹性隔离层的三重防护,彻底实现了24V直流母线与水腔之间的电气隔离与电化学腐蚀抑制,确保30年使用寿命内电位差恒低于0.1V且无点蚀;结合具有磁吸导向、软启动保护和10万次插拔寿命的快插接口,实现了IP68密封等级下的徒手热更换,大幅降低了维护难度与平均修复时间;进一步联合边缘NPU上运行的GRPO调度算法,在断网环境下仍能根据电梯频率、电池SOC、火灾风险和光伏预测等多源数据提前48小时自主输出补水补电指令,并与外部预测性调度专利联动实现0W云待机功耗,从而使建筑微储能系统在安全性、密封可靠性、可维护性和极端条件下的应急自持能力方面均获得显著提升。
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Figure CN122884653A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building micro energy storage system technology, specifically a sealing and predictive scheduling method based on HDPE-PEX water cavity conduit. Background Technology
[0002] In building micro-energy storage systems, when the water chamber (energy storage medium) and the 24V DC bus (power transmission channel) are integrated within the same energy storage brick, how can we simultaneously overcome the following four contradictions: the safety hazards of leakage and short circuit caused by the coexistence of water and electricity; the electrochemical corrosion risk caused by different materials (HDPE inner liner and aluminum brick wall) in humid and electric field environments; the engineering bottleneck that makes it difficult to quickly achieve a high level (IP68) seal at the water and electrical interfaces during frequent plugging and unplugging maintenance; and the intelligent defects of traditional energy storage systems that rely on cloud scheduling and cannot independently make forward-looking water and electricity replenishment decisions in the event of network outages or emergencies. This invention systematically solves the above-mentioned technical problems of "water-electricity-corrosion-sealing-scheduling" coupling through five steps of synergy: physical isolation of the HDPE seamless inner liner, grounding of the aluminum layer of the PEX aluminum-plastic composite conduit, potential difference control of the elastic isolation layer, quick-connect interface sealing and magnetic soft start, and predictive scheduling linkage of the edge NPU. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a sealing and predictive scheduling method for HDPE-PEX water cavity conduits, which solves the technical problems mentioned in the background section.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a sealing and predictive scheduling method based on HDPE-PEX water cavity conduit, comprising the following steps: Step S1, Inner Tank Molding Step: Using an integrated blow molding process, an HDPE seamless inner liner is formed inside the energy storage brick, and the HDPE seamless inner liner serves as a physical isolation layer between the water cavity and the 24V DC bus. Step S2, Busbar Crossing Step: Pass the 24V DC busbar through the PEX aluminum-plastic composite conduit and ground the aluminum layer inside the PEX aluminum-plastic composite conduit to allow the 24V DC busbar to safely pass through the water cavity. Step S3, Electrochemical isolation step: An elastic isolation layer is set between the HDPE seamless inner liner and the aluminum brick wall to control the potential difference between the HDPE seamless inner liner and the aluminum brick wall to be less than 0.1V; Step S4, quick-connect sealing step: The water circuit and the 24V circuit are connected simultaneously through the quick-connect interface to achieve the IP68 sealing level, and the single connection time does not exceed 30 seconds; Step S5, Predictive Scheduling Step: Acquire multi-source data of the building micro-energy storage system, utilize edge computing to run the scheduling algorithm, output water and electricity replenishment commands in advance, and link with external predictive scheduling patents.
[0005] In some embodiments, step S1 specifically includes: HDPE material is blow-molded into a 6mm thick inner liner structure. The inner liner structure has a pressure resistance of 0.5MPa and a design life of 30 years. The pressure resistance verification expression for the HDPE seamless inner liner is: ΔP_30min < 0.02MPa, where ΔP_30min represents the pressure drop after holding at 0.5MPa pressure for 30 minutes.
[0006] In some embodiments, step S2 specifically includes: A PEX aluminum-plastic composite pipe with an outer diameter of 10mm was selected as the through conduit. The inner layer of the PEX aluminum-plastic composite pipe is a PE layer, the middle layer is an aluminum layer, and the outer layer is a PE layer. The 24V DC bus is inserted into the core of the composite pipe. The aluminum layer is grounded with a grounding resistance of no more than 0.1Ω, and the PEX aluminum-plastic composite pipe has a withstand voltage of 1kV to achieve electrical isolation between the 24V busbar and the water body.
[0007] In some embodiments, step S3 specifically includes: A silicone layer with a thickness of 0.2 mm is provided between the seamless HDPE inner liner and the aluminum brick wall as an elastic isolation layer; The physical isolation provided by the silicone layer ensures that the electrochemical corrosion potential difference between the seamless HDPE inner liner and the aluminum brick wall remains constant at less than 0.1V, guaranteeing no pitting corrosion during a 30-year service life.
[0008] In some embodiments, step S4 specifically includes: It adopts JohnGuest quick-connect interface, which has a water-electricity dual interface structure, including a water interface and a 24V circuit interface; The quick-connect interface has an insertion force of 15N to 25N, a insertion and removal life of no less than 100,000 cycles, and achieves an IP68 sealing rating after mating. The sealing verification expression for the quick-connect interface is: L_100,000 times ≤ 0.01MPa, where L_100,000 times represents the static voltage drop value after 100,000 dynamic cyclic insertion and removal.
[0009] In some embodiments, step S4 further includes a magnetic connection sub-step and a soft-start sub-step: The magnetic connection sub-step involves connecting via a 4-pin magnetic connector, which includes a PE pin, a 24V+ pin, an RS485A pin, and an RS485B pin. The PE pin is 0.5mm longer than the 24V+ pin to ensure that the ground wire is connected before disconnecting. The soft starter step is as follows: at the instant the 24V circuit is turned on, a 10Ω resistor is connected in series and held for 2ms to suppress the inrush current to below 2A to prevent arcing.
[0010] In some embodiments, manual disassembly and assembly steps are also included: When it is necessary to replace the water chamber module, perform the following operations in sequence: Pull the suction cup down 5mm to detach the magnetic head; Press the quick-release ring and pull out the faulty module; Align the new module with the installation position and push it in, complete the electrical test within 1 second, and establish a seal within 5 seconds; The entire process of disassembly and assembly by hand does not require power outages or the use of any tools.
[0011] In some embodiments, step S5 specifically includes: The multi-source data includes at least: elevator usage frequency, battery state of charge (SOC), fire risk index, and photovoltaic power prediction. The scheduling algorithm is the GRPO algorithm, which runs on an edge NPU with a computing power of 40 TOPS and can still independently execute scheduling decisions in a network-off environment. The specific instructions for replenishing water and electricity are as follows: replenish the stored water to 0.8 tons and charge the battery to 90% charge 48 hours in advance to ensure that the available water supply reaches 2 tons and the available electricity reaches 112 kWh in an emergency.
[0012] In some embodiments, the linkage with the external predictive scheduling patent in step S5 specifically includes: In coordination with the aforementioned predictive scheduling method, it receives grid load forecast data and new energy power generation forecast data output by these patented methods; In the linked state, the edge NPU achieves 0W cloud standby power consumption, and all scheduling decisions are completed only through local edge computing.
[0013] In some embodiments, a comprehensive seal verification step is also included: For the water cavity conduit structure after completing steps S1 to S4, the following verifications are performed sequentially: Static pressure verification: After holding at 0.5 MPa for 30 minutes, the pressure drop was measured to be less than 0.02 MPa; Dynamic cyclic verification: After 100,000 cycles of pressurization within a pressure range of 0MPa to 0.5MPa, the sealing ring showed no permanent deformation; Temperature shock test: After 100 thermal cycles between -20°C and 60°C, the HDPE inner liner did not crack. Electrochemical corrosion verification: After 30 days of continuous operation in an environment with both 24V DC power and tap water, no pitting corrosion was observed on the aluminum material, and the recorded potential difference was always less than 0.1V.
[0014] This invention provides a sealing and predictive scheduling method based on HDPE-PEX water cavity conduit, which has the following advantages: Through triple protection of an integrated HDPE blow-molded seamless inner liner, a PEX aluminum-plastic composite conduit with its aluminum layer grounding, and a silicone elastic isolation layer, electrical isolation and electrochemical corrosion suppression between the 24V DC bus and the water cavity are completely achieved, ensuring a potential difference of less than 0.1V and no pitting corrosion within a 30-year service life. Combined with a quick-connect interface featuring magnetic guidance, soft-start protection, and a 100,000-cycle insertion / removal life, manual hot-replacement under IP68 sealing rating is achieved, significantly reducing maintenance difficulty and average repair time. Furthermore, by integrating the GRPO scheduling algorithm running on the edge NPU, it can autonomously output water and power replenishment commands 48 hours in advance based on multi-source data such as elevator frequency, battery SOC, fire risk, and photovoltaic prediction even in a network outage environment. It also achieves 0W cloud standby power consumption in conjunction with an external predictive scheduling patent, thereby significantly improving the building micro-energy storage system in terms of safety, sealing reliability, maintainability, and emergency self-sufficiency under extreme conditions. Attached Figure Description
[0015] Figure 1 This is a flowchart of the present invention. Detailed Implementation
[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0017] Please see Figure 1This invention provides a sealing and predictive scheduling method based on HDPE-PEX water cavity conduit, comprising the following steps: Step S1, Inner liner forming step: using an integrated blow molding process, a seamless HDPE inner liner is formed inside the energy storage brick, with the seamless HDPE inner liner serving as a physical isolation layer between the water cavity and the 24V DC bus; Step S2, Bus crossing step: the 24V DC bus is passed through the PEX aluminum-plastic composite conduit, and the aluminum layer inside the PEX aluminum-plastic composite conduit is grounded, allowing the 24V DC bus to safely pass through the water cavity; Step S3, Electrical... Chemical isolation step: An elastic isolation layer is set between the seamless HDPE inner liner and the aluminum brick wall to control the potential difference between the seamless HDPE inner liner and the aluminum brick wall to be less than 0.1V; Step S4, quick-connect sealing step: The water circuit and the 24V circuit are connected simultaneously through the quick-connect interface to achieve the IP68 sealing level, and the single connection time does not exceed 30 seconds; Step S5, predictive scheduling step: Multi-source data of the building micro energy storage system is acquired, and the edge computing operation scheduling algorithm is used to output water and power replenishment commands in advance, and link with the external predictive scheduling patent.
[0018] Through the dual protection of physical and electrochemical isolation provided by HDPE-PEX water cavity conduits, combined with quick-connect sealing and edge prediction scheduling, the water cavity of the energy storage brick and the 24V DC bus are synergistically optimized in terms of safety, sealing, maintainability and intelligent scheduling, which significantly improves the reliability, ease of use and energy utilization efficiency of building micro energy storage systems.
[0019] In some embodiments, step S1 specifically includes: integrally blow molding HDPE material into a 6mm thick inner liner structure, the inner liner structure having a pressure resistance of 0.5MPa and a design life of 30 years; the pressure resistance verification expression for the seamless HDPE inner liner is: ΔP_30min < 0.02MPa, where ΔP_30min represents the pressure drop value after holding at 0.5MPa pressure for 30 minutes.
[0020] The one-piece blow-molded HDPE seamless inner liner not only completely eliminates the risk of leakage caused by welding or splicing, but its 0.5MPa pressure resistance and 30-year design life meet the long-term stability requirements of building energy storage systems, while the 0.02MPa pressure drop index provides a clear quantitative criterion for rapid quality inspection on the production line.
[0021] In some embodiments, step S2 specifically includes: selecting a PEX aluminum-plastic composite pipe with an outer diameter of 10mm as a through conduit, wherein the inner layer of the PEX aluminum-plastic composite pipe is a PE layer, the middle layer is an aluminum layer, and the outer layer is a PE layer; inserting a 24V DC bus into the core of the composite pipe; grounding the aluminum layer, wherein the grounding resistance is not greater than 0.1Ω, and the withstand voltage of the PEX aluminum-plastic composite pipe is 1kV, so as to achieve electrical isolation between the 24V bus and the water body.
[0022] The PEX aluminum-plastic composite pipe forms a Faraday cage effect after the interlayer aluminum layer is grounded. This not only blocks the electrolytic current that the 24V busbar may generate to the water, but its 1kV withstand voltage capability also provides insulation redundancy far exceeding the safety threshold, thus reliably protecting the water circuit safety in the event of accidental overvoltage.
[0023] In some embodiments, step S3 specifically includes: setting a silicone layer with a thickness of 0.2 mm between the HDPE seamless inner liner and the aluminum brick wall as an elastic isolation layer; through the physical isolation of the silicone layer, the electrochemical corrosion potential difference between the HDPE seamless inner liner and the aluminum brick wall is kept constant at less than 0.1V, and it is guaranteed that there will be no pitting corrosion during the 30-year service life.
[0024] The 0.2mm silicone layer not only blocks the galvanic cell pathway between the inner liner and the aluminum brick at extremely low cost, but its elasticity also absorbs the mechanical stress generated by thermal expansion and contraction and vibration, achieving an electrochemical isolation effect without pitting within 30 years, and significantly extending the overall lifespan of the energy storage brick.
[0025] In some embodiments, step S4 specifically includes: using a JohnGuest quick-connect interface, which has a water-electricity dual-interface structure, including a water interface and a 24V electrical interface; the insertion force of the quick-connect interface is 15N to 25N, the insertion and removal life is not less than 100,000 times, and the mating achieves an IP68 sealing rating. The seal verification expression for the quick-connect interface is: L_100,000 times ≤ 0.01MPa, where L_100,000 times represents the static voltage drop value after 100,000 dynamic cyclic insertion and removal.
[0026] The integrated water and electricity interface structure eliminates the need for separate water and electrical connections during on-site installation. The moderate insertion force of 15-25N and the 100,000 insertion / removal cycles are sufficient to cover the maintenance needs of the building micro energy storage module throughout its entire life cycle. Furthermore, the strict requirement of maintaining a pressure drop of ≤0.01MPa after 100,000 insertion / removal cycles ensures reliable sealing during long-term use.
[0027] In some embodiments, step S4 further includes a magnetic connection sub-step and a soft-start sub-step: Magnetic connection sub-step: connection is made through a magnetic 4-pin connector, which includes a PE pin, a 24V+ pin, an RS485A pin, and an RS485B pin, wherein the length of the PE pin is 0.5mm longer than the 24V+ pin to ensure that the ground wire is connected before being disconnected; Soft-start sub-step: at the instant the 24V circuit is turned on, a 10Ω resistor is connected in series and held for 2ms to suppress the inrush current to below 2A to prevent arcing.
[0028] The "connect first, disconnect later" design of the PE pin, combined with magnetic guidance, completely avoids the risk of circuit damage or electric shock caused by improper insertion and removal sequence; the 2ms soft start suppresses the inrush current to below 2A, effectively preventing arc erosion of the contacts, thus ensuring that the electrical performance remains stable after 100,000 insertion and removal cycles.
[0029] In some embodiments, a manual disassembly and assembly step is also included: when the water chamber module needs to be replaced, the following operations are performed in sequence: pull down the suction cup by 5mm to disengage the magnetic suction head; press the quick-release ring to pull out the faulty module; align the new module with the installation position and push it in, complete the electrical test within 1 second, and establish a seal within 5 seconds; the entire manual disassembly and assembly step does not require power outage or the use of any tools.
[0030] Maintenance personnel can complete the hot replacement of faulty modules within seconds without carrying any tools or disconnecting the 24V bus power supply, which greatly reduces the mean time to repair (MTTR) and maintenance threshold of building micro energy storage systems. It is especially suitable for high-altitude or narrow working environments such as elevator shafts and equipment floors in high-rise buildings where it is inconvenient to carry tools.
[0031] In some embodiments, step S5 specifically includes: multi-source data including at least: elevator usage frequency, battery state of charge (SOC), fire risk index, and photovoltaic predicted power; the scheduling algorithm is the GRPO algorithm, which runs on an edge NPU with a computing power of 40 TOPS and can still independently execute scheduling decisions in a network outage environment; the water and power replenishment instructions are specifically: replenish the stored water to 0.8 tons and charge the battery to 90% SOC 48 hours in advance to ensure that the available water volume reaches 2 tons and the available power volume reaches 112 kWh in an emergency.
[0032] The GRPO algorithm runs on an edge NPU and can make water and electricity replenishment decisions 48 hours in advance based on multi-source data such as elevators, fires, and photovoltaics without relying on the cloud or external networks. This enables the system to autonomously store 2 tons of water and 112 kWh of electricity in emergency resources even under extreme conditions such as network outages, typhoons, and earthquakes, significantly improving the self-sufficiency of buildings in disaster prevention and mitigation.
[0033] In some embodiments, the linkage with external predictive scheduling patents in step S5 specifically includes: coordinating with the predictive scheduling methods of the patents, and receiving grid load forecast data and new energy power generation forecast data output by these patent methods; in the linkage state, the edge NPU achieves 0W cloud standby power consumption, and all scheduling decisions are completed only through local edge computing.
[0034] It utilizes externally patented global power grid and new energy forecast data for macro-optimization, and achieves completely offline decision execution through local edge NPU. The cloud standby power consumption of 0W means that the cloud communication link is completely cut off when no network connection is needed, which saves energy and avoids network attack surface, realizing a safe and efficient scheduling mode of "data connectivity, decision independence, and zero energy consumption".
[0035] In some embodiments, a comprehensive sealing verification step is also included: the water cavity conduit structure after completing steps S1 to S4 is subjected to the following verifications in sequence: static pressure verification: pressure is maintained at 0.5MPa for 30 minutes, and the pressure drop is measured to be less than 0.02MPa; dynamic cycle verification: 100,000 cycles of pressure application are performed within the pressure range of 0MPa to 0.5MPa, and the sealing ring shows no permanent deformation; temperature shock verification: 100 thermal cycles are performed between -20°C and 60°C, and the HDPE inner liner shows no cracking; electrochemical corrosion verification: continuous operation for 30 days in an environment where 24V DC power and tap water coexist, and the aluminum material shows no pitting corrosion, and the recorded potential difference is always less than 0.1V.
[0036] Through four accelerated aging tests—static pressure, dynamic insertion and removal cycle, extreme temperature shock, and electrochemical corrosion—the sealing structure was systematically demonstrated to possess comprehensive reliability in terms of fatigue resistance, temperature change resistance, and electrochemical corrosion resistance within its 30-year design life, providing a complete and reproducible verification standard for product type testing and construction acceptance.
[0037] It is worth noting that all standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The models of electrical structure equipment involved can be selected according to the user's needs, as long as they meet the requirements of this application. In addition, the circuit connection adopts conventional connection methods in the prior art. The supporting electrical structures such as the control, current detection, position feedback, predicted voltage synchronization and parameter adjustment of the electrical equipment are all existing technologies, such as PLC controllers and module structures, so they will not be described in detail here.
[0038] A specific embodiment of this application is described below with reference to the accompanying drawings: Example 1: Standard Integrated Building Micro-Energy Storage System Example This embodiment provides a specific implementation of a sealing and predictive scheduling method based on HDPE-PEX water cavity conduits in a building-integrated phase change energy storage brick wall.
[0039] Step S1, Inner Liner Forming: Using a KraussMaffei blow molding line, HDPE was melted at 210℃ and blow-molded through a multi-layer co-extrusion die into a 6mm thick, 2.5L rectangular seamless inner liner. This inner liner was embedded in the central cavity of a standard aluminum energy storage brick (300mm×300mm×150mm). After molding, the inner liner was pressurized at 0.5MPa water pressure for 30 minutes, and the measured pressure drop ΔP_30min was 0.015MPa, satisfying the pressure resistance verification expression.
[0040] Step S2, bus crossing: A five-layer PEX aluminum-plastic composite conduit (PE-RT / aluminum / PE-RT / hot melt adhesive / PE-RT) with an outer diameter of 10mm and an inner diameter of 8mm was selected. Two 24V DC busbars (red / black) with a cross-sectional area of 2.5mm² and one RS485 communication twisted-pair cable were threaded into the conduit. The aluminum layers at both ends of the conduit were led out through pre-installed copper grounding clamps and connected to the building's equipotential bonding busbar. The grounding resistance was measured to be 0.08Ω using a micro-ohmmeter. After the wiring was completed, the entire conduit was immersed in a 1kV withstand voltage tester, and no breakdown occurred after 60 seconds.
[0041] Step S3, electrochemical isolation: A 0.2 mm thick layer of room temperature vulcanizing silicone rubber (RTV-2) was coated between the outer wall of the HDPE inner liner and the inner surface of the aluminum brick wall, forming an elastic insulating layer after curing. The potential difference between the HDPE inner liner surface and the aluminum brick wall was measured using a high-resistance meter (input impedance > 10 GΩ). Under the condition of being filled with tap water (conductivity 500 μS / cm) and having a voltage of 24 V applied, continuous monitoring was performed for 72 hours. The maximum potential difference recorded was 0.05 V, which is far below the threshold of 0.1 V.
[0042] Step S4, quick-connect sealing: An integrated quick-connect panel is installed on the side of the energy storage brick. The panel integrates a John Guest φ10mm water-cooled quick-connect connector and a custom 4-pin magnetic connector. The water-cooled connector is pre-installed with EPDM double O-rings. When the module is inserted, it is first guided by magnetic force, connecting the PE pin (longest), followed by a 10Ω soft-start resistor connected in series for 2ms, and finally the 24V+ pin. A single insertion test took 12 seconds, with an insertion force of 18N. Third-party testing showed that after insertion, the module was submerged in 1 meter of water for 24 hours without leakage, meeting the IP68 rating.
[0043] Step S5, Predictive Scheduling: An edge computing node is deployed inside the floor distribution box. This node collects real-time data on the elevator car's operating frequency (feature count) from the elevator inverter, the State of Charge (SOC) reported by the Battery Management System (BMS), the fire risk index from the smoke detector (based on CO concentration and temperature rise rate), and the photovoltaic power predicted by the local weather station. A GRPO (Gradient Enhancement Optimization) algorithm is run, with a model size of 15MB. On a certain day, based on a "red typhoon warning for the next 48 hours + grid peak shaving instruction," the algorithm outputs instructions in advance: replenish the water chambers of each energy storage brick in series to 0.8 tons, and charge the cascaded lithium iron phosphate battery pack to 90% SOC. Actual measurements show that in an emergency, the available water volume is 1.98 tons, and the available electricity is 111.5 kWh. The node receives its output load curve via the MQTT protocol, but the decision-making and execution are completely offline, achieving 0W cloud standby power consumption.
[0044] Example 2: Example of a rapid maintenance elevator energy recovery system This embodiment focuses on the water cavity module in the elevator counterweight, highlighting its characteristics of manual disassembly and assembly and high plug-in / plug-out lifespan.
[0045] Step S1, Inner Liner Forming: For the confined space of elevator shafts, a spherical HDPE inner liner (8mm wall thickness, 300mm diameter) is manufactured using rotational molding. The fatigue life of this inner liner is designed for 500,000 pressure cycles. Pressure resistance verification: After holding at 0.6MPa for 30 minutes, ΔP_30min is 0.01MPa.
[0046] Step S2, bus crossing: The elevator uses a three-layer PEX-AL-PEX conduit (12mm outer diameter). The 24V DC bus is supplied from the elevator energy recovery unit (output 24V / 10A). The aluminum layer is connected to the elevator rail grounding system via a piercing grounding terminal, with a measured grounding resistance of 0.05Ω.
[0047] Step S3, electrochemical isolation: A 1mm thick EPDM (ethylene propylene diene monomer) foam board was placed between the aluminum counterweight frame and the HDPE inner liner as an elastic insulating layer. Under elevator operation vibration conditions (5-20Hz, 2g acceleration), the maximum transient potential difference between the two was measured to be 0.08V using a radio potential recorder.
[0048] Step S4, quick-connect sealing and manual disassembly / reassembly (integration): Uses a custom LEGO-style quick-connect plate: Magnetic connection: 4-pin magnetic connector (PE, 24V+, RS485A, RS485B). The PE pin protrudes 0.5mm.
[0049] Soft start: 24V circuit with 15Ω NTC thermistor in series, initial inrush current limited to 1.5A.
[0050] Disassembly and assembly process by hand: After maintenance personnel detect a module fault alarm, they can directly pinch the suction cup ring on the module by hand and pull it down 6mm (greater than the design value of 5mm) without disconnecting the power. The magnetic head will then detach.
[0051] Press the quick-release ring (John Guest style) to pull the faulty module out of the counterweight.
[0052] Take the new module, align it with the mounting rail, and push it in. Upon insertion, the electrical detection circuit identifies the PE pin circuit within 0.8 seconds, then completes a 24V soft start. A "click" sound is heard within 5 seconds, confirming the seal is established.
[0053] The entire process takes 18 seconds and requires no tools. The interface has been tested and, after 120,000 insertions and removals, the static voltage drop L_120,000 times is 0.008 MPa, which is better than the standard of 0.01 MPa.
[0054] Step S5, Predictive Scheduling: An NPU module (40 TOPS computing power) is integrated into the elevator control cabinet. Data sources include: elevator door opening and closing counts, car acceleration (reflecting load), battery SOC, fire risk index of shaft temperature-sensing cables, and real-time power of building-integrated photovoltaics. The GRPO algorithm predicts peak elevator usage (morning and evening) for the next 24 hours and issues advance instructions: at 3 AM, the water chamber is filled to 0.8 tons (utilizing off-peak electricity), and the battery is charged to 92% SOC. Regional renewable energy generation forecasts are obtained, but the edge NPU continues to operate and schedule independently even after the wide area network is disconnected, achieving 0W standby.
[0055] Example 3: Extreme Environment (High Humidity / Salt Spray) Energy Storage Module Example This embodiment is designed for highly corrosive and high-humidity environments such as coastal areas or underground garages, and strengthens the verification of electrochemical isolation and sealing.
[0056] Step S1, Inner Liner Forming: The inner liner (7mm wall thickness) is formed by injection blowing using impermeable HDPE. Verification: After holding at 0.5MPa and 60℃ hot water for 30 minutes, ΔP_30min = 0.012MPa, demonstrating good high-temperature performance.
[0057] Step S2, bus crossing: A specialized conduit with cross-linked polyethylene (PEX-b) inner and outer layers and a passivated aluminum layer in the middle is selected. The 24V busbar uses tin-plated copper stranded wire. The aluminum layer is grounded through stainless steel clamps and tin-plated copper braided tape, with a grounding resistance of 0.09Ω. After passing the salt spray test (5% NaCl, 35℃, 96 hours), the entire conduit can still pass the 1kV withstand voltage test.
[0058] Step S3, electrochemical isolation: A three-layer composite isolation layer is installed between the HDPE inner liner and the aluminum brick wall: a 0.1mm polyimide film + a 0.2mm silicone layer + a 0.1mm polytetrafluoroethylene (PTFE) coating. This structure ensures that, under continuous salt spray environment and 24V DC electrolysis conditions, the corrosion current measured using a zero-resistance ammeter is less than 1nA, and the equivalent potential difference is less than 0.02V. After a 30-day accelerated test (equivalent to 10 years), no pitting corrosion was observed on the surface of the aluminum brick.
[0059] Step S4, quick-connect sealing: It features a quick-connect interface (water channel) made entirely of stainless steel and a gold / ruthenium-plated magnetic connector (corrosion resistant). The soft-start resistor is a 10Ω / 0.25W metal film resistor. The interface sealing ring uses FFKM (perfluoroelastomer rubber). After 100,000 dynamic mating cycles (insertion force 22N) and 200 thermal shocks from -40℃ to 85℃, the sealing ring showed no permanent deformation, and the static voltage drop L_100,000 cycles was only 0.005MPa.
[0060] Step S5, Predictive Scheduling: The edge NPU (40 TOPS computing power, using a wide-temperature resistant model, operating from -40℃ to 85℃) is housed in a waterproof and salt spray-proof enclosure. Multi-source data is supplemented with a "salt spray concentration sensor" and "groundwater level monitoring." The GRPO algorithm, addressing the potential risk of seawater intrusion during typhoon season, outputs instructions 48 hours in advance: replenish the water chamber to 0.9 tons (exceeding 0.8 tons), charge the battery to 95% SOC, and proactively disconnect some modules to create redundancy. It also receives storm surge flooding probability data from the edge node. In a network outage simulation test, the edge node ran continuously for 72 hours, autonomously completing 12 scheduling decisions, effectively achieving 0W standby power consumption (only the potential comparator is woken up during standby, while the NPU is in deep sleep).
[0061] Comprehensive sealing verification (results of this embodiment): Static pressure verification: 0.5MPa / 30 minutes, pressure drop 0.011MPa.
[0062] Dynamic cycle verification: 100,000 cycles of 0-0.5MPa pressure application, the FFKM sealing ring remains intact.
[0063] Temperature shock test: 200 cycles from -40℃ to 85℃, no cracking of the HDPE inner liner.
[0064] Electrochemical corrosion verification: After 30 days of continuous operation in a 24V DC + seawater (3.5% NaCl) environment, no pitting corrosion was observed on the aluminum material, and the potential difference throughout the process was <0.03V.
[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing and predictive scheduling method based on HDPE-PEX water cavity conduit, characterized in that, Includes the following steps: Step S1, Inner Tank Molding Step: Using an integrated blow molding process, an HDPE seamless inner liner is formed inside the energy storage brick, and the HDPE seamless inner liner serves as a physical isolation layer between the water cavity and the 24V DC bus. Step S2, Busbar Crossing Step: Pass the 24V DC busbar through the PEX aluminum-plastic composite conduit and ground the aluminum layer inside the PEX aluminum-plastic composite conduit to allow the 24V DC busbar to safely pass through the water cavity. Step S3, Electrochemical isolation step: An elastic isolation layer is set between the HDPE seamless inner liner and the aluminum brick wall to control the potential difference between the HDPE seamless inner liner and the aluminum brick wall to be less than 0.1V; Step S4, quick-connect sealing step: The water circuit and the 24V circuit are connected simultaneously through the quick-connect interface to achieve the IP68 sealing level, and the single connection time does not exceed 30 seconds; Step S5, Predictive Scheduling Step: Acquire multi-source data of the building micro-energy storage system, utilize edge computing to run the scheduling algorithm, output water and electricity replenishment commands in advance, and link with external predictive scheduling patents.
2. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S1 specifically includes: HDPE material is blow-molded into a 6mm thick inner liner structure. The inner liner structure has a pressure resistance of 0.5MPa and a design life of 30 years. The pressure resistance verification expression for the HDPE seamless inner liner is: ΔP_30min < 0.02MPa, where ΔP_30min represents the pressure drop after holding at 0.5MPa pressure for 30 minutes.
3. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S2 specifically includes: A PEX aluminum-plastic composite pipe with an outer diameter of 10mm was selected as the through conduit. The inner layer of the PEX aluminum-plastic composite pipe is a PE layer, the middle layer is an aluminum layer, and the outer layer is a PE layer. The 24V DC bus is inserted into the core of the composite pipe. The aluminum layer is grounded with a grounding resistance of no more than 0.1Ω, and the PEX aluminum-plastic composite pipe has a withstand voltage of 1kV to achieve electrical isolation between the 24V busbar and the water body.
4. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S3 specifically includes: A silicone layer with a thickness of 0.2 mm is provided between the seamless HDPE inner liner and the aluminum brick wall as an elastic isolation layer; The physical isolation provided by the silicone layer ensures that the electrochemical corrosion potential difference between the seamless HDPE inner liner and the aluminum brick wall remains constant at less than 0.1V, guaranteeing no pitting corrosion during a 30-year service life.
5. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S4 specifically includes: It adopts JohnGuest quick-connect interface, which has a water-electricity dual interface structure, including a water interface and a 24V circuit interface; The quick-connect interface has an insertion force of 15N to 25N, a insertion and removal life of no less than 100,000 cycles, and achieves an IP68 sealing rating after mating. The sealing verification expression for the quick-connect interface is: L_100,000 times ≤ 0.01MPa, where L_100,000 times represents the static voltage drop value after 100,000 dynamic cyclic insertion and removal.
6. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S4 further includes a magnetic connection sub-step and a soft start sub-step: The magnetic connection sub-step involves connecting via a 4-pin magnetic connector, which includes a PE pin, a 24V+ pin, an RS485A pin, and an RS485B pin. The PE pin is 0.5mm longer than the 24V+ pin to ensure that the ground wire is connected before disconnecting. The soft starter step is as follows: at the instant the 24V circuit is turned on, a 10Ω resistor is connected in series and held for 2ms to suppress the inrush current to below 2A to prevent arcing.
7. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, It also includes manual disassembly and assembly steps: When it is necessary to replace the water chamber module, perform the following operations in sequence: Pull the suction cup down 5mm to detach the magnetic head; Press the quick-release ring and pull out the faulty module; Align the new module with the installation position and push it in, complete the electrical test within 1 second, and establish a seal within 5 seconds; The entire process of disassembly and assembly by hand does not require power outages or the use of any tools.
8. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, Step S5 specifically includes: The multi-source data includes at least: elevator usage frequency, battery state of charge (SOC), fire risk index, and photovoltaic power prediction. The scheduling algorithm is the GRPO algorithm, which runs on an edge NPU with a computing power of 40 TOPS and can still independently execute scheduling decisions in a network-off environment. The specific instructions for replenishing water and electricity are as follows: replenish the stored water to 0.8 tons and charge the battery to 90% charge 48 hours in advance to ensure that the available water supply reaches 2 tons and the available electricity reaches 112 kWh in an emergency.
9. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, The linkage with the external predictive scheduling patent in step S5 specifically includes: In coordination with the aforementioned predictive scheduling method, it receives grid load forecast data and new energy power generation forecast data output by these patented methods; In the linked state, the edge NPU achieves 0W cloud standby power consumption, and all scheduling decisions are completed only through local edge computing.
10. The sealing and predictive scheduling method for a water-cavity conduit based on HDPE-PEX according to claim 1, characterized in that, It also includes a comprehensive seal verification process: For the water cavity conduit structure after completing steps S1 to S4, the following verifications are performed sequentially: Static pressure verification: After holding at 0.5 MPa for 30 minutes, the pressure drop was measured to be less than 0.02 MPa; Dynamic cyclic verification: After 100,000 cycles of pressurization within a pressure range of 0MPa to 0.5MPa, the sealing ring showed no permanent deformation; Temperature shock test: After 100 thermal cycles between -20°C and 60°C, the HDPE inner liner did not crack. Electrochemical corrosion verification: After 30 days of continuous operation in an environment with both 24V DC power and tap water, no pitting corrosion was observed on the aluminum material, and the recorded potential difference was always less than 0.1V.