Passive explosion-proof lightning early warning zoning linkage execution control cabinet

Abstract

The application discloses a passive explosion-proof lightning early warning partition linkage execution control cabinet and belongs to the technical field of lightning early warning explosion-proof linkage control hardware. The control cabinet comprises a control cabinet body, an explosion-proof sealing cabinet door, an explosion-proof wiring port, a passive magnetic control non-contact execution loop, a passive energy storage self-sustaining emergency module, a multi-path partition isolation linkage output channel, a multi-signal fusion linkage acquisition module and an intrinsic safety current-limiting isolation unit. The passive magnetic control non-contact execution loop adopts a permanent magnet magnetic control conduction element to replace a mechanical relay, so that electric arc and electric spark are avoided; the passive energy storage self-sustaining emergency module maintains partition interlocking control under the condition of power-off and network interruption; the multi-path partition isolation linkage output channel realizes the partition differentiated linkage of wind power, energy storage and chemical industry; the multi-signal fusion linkage acquisition module fuses lightning, combustible gas and temperature risk signals to form multiple safety interlocks. The control cabinet can improve the explosion-proof safety, power-off reliability and partition linkage management and control capability of a high-risk station.

Description

Technical Field

[0001] This invention belongs to the technical field of lightning early warning explosion-proof linkage control hardware, passive spark-free control cabinet, station zoned wind turbines, energy storage, chemical equipment interlocking execution devices, and intrinsically safe lightning protection linkage terminal equipment. Specifically, it relates to a lightning early warning zoned linkage control cabinet with contactless passive explosion-proof, power failure self-sustaining emergency control, multi-zone independent differentiated linkage, and multi-risk signal fusion interlocking functions. It is mainly suitable for zoned risk avoidance, equipment interlocking, and passive linkage control operations for safety protection in high-risk scenarios such as chemical explosion-proof areas, energy storage clusters, and large-scale wind power bases. Background Technology

[0002] Wind power, energy storage, and chemical industrial parks are high-risk, flammable, and explosive environments requiring critical protection. They necessitate lightning warning and control cabinets to achieve interlocking and safety measures for front-end equipment. Warning signals trigger safety actions such as wind turbine feathering, energy storage power limiting, chemical equipment depressurization, and feed cutoff, ensuring the overall operational safety of the site. Currently, traditional lightning control cabinets in the industry suffer from outdated designs, insufficient safety performance, and simplistic control logic, failing to meet the operational needs of high-risk explosion-proof scenarios and extreme conditions in unmanned sites, and exhibiting several inherent hardware technical deficiencies.

[0003] Traditional linkage control cabinets suffer from four major technological shortcomings: First, insufficient explosion-proof safety. The equipment typically uses traditional mechanical relays as switching actuators, which are prone to generating arcs and sparks during contact opening and closing, failing to meet the inherent safety requirements of Class I explosion-proof chemical zones. This poses a significant safety hazard of ignition and explosion of flammable and explosive gases, limiting deployment in high-risk explosion-proof scenarios. Second, poor operational reliability. The equipment is designed for purely active power supply, relying entirely on external mains power and cloud communication links. In the event of extreme thunderstorms causing power outages or network disruptions, the control cabinet's linkage control function will completely fail, potentially leading to equipment malfunction and protection gaps in unmanned sites. Third, control... The traditional control cabinet suffers from several drawbacks. First, its operation is limited to a single mode. A single traditional control cabinet can only output a uniform switch control signal, and all linked areas execute a single action synchronously. It cannot achieve independent and differentiated linkage control for wind turbine grids, energy storage clusters, or chemical plant zones. It has extremely poor adaptability to large-scale, multi-zone sites and requires multiple devices to be deployed separately, resulting in high hardware investment and maintenance costs. Second, its risk linkage dimension is limited. Traditional control cabinets only connect to lightning warning signals and do not have independent temperature and combustible gas monitoring linkage loops. They cannot integrate plant explosion-proof monitoring data, and lightning risks cannot be linked with chemical leaks or high-temperature equipment risks. The safety management coverage is incomplete, and the protection system has loopholes.

[0004] In summary, existing lightning-linked control cabinets suffer from technical defects such as insufficient explosion-proof rating, failure to function when powered off, lack of zoned differentiated control, and single risk linkage. They cannot meet the high safety, high reliability, zoned, and multi-dimensional protection requirements of chemical explosion-proof areas, energy storage clusters, and large-scale wind power bases. The industry urgently needs a passive, spark-free, power-off self-sustaining, multi-zone isolation linkage, and multi-signal fusion interlocking explosion-proof lightning early warning zone linkage execution control cabinet. Summary of the Invention

[0005] I. Purpose of the invention.

[0006] To address the technical shortcomings of existing traditional lightning-linked control cabinets, such as the risk of electric spark triggering, failure of linkage during power outages or network interruptions, lack of zoned differentiated control, and single-dimensional risk linkage, this invention provides a passive explosion-proof lightning early warning zoned linkage execution control cabinet. Through four core designs—a full-loop passive magnetic control contactless architecture, a passive energy storage self-sustaining emergency module, multiple physically isolated zoned output channels, and a multi-signal fusion linkage acquisition module—it achieves intrinsically safe explosion-proof equipment, self-sustaining operation under extreme conditions, multi-zone differentiated linkage, and multi-risk dual interlocking control, fully adapting to the lightning safety linkage protection needs of high-risk explosion-proof scenarios.

[0007] II. Technical Solution.

[0008] To achieve the above-mentioned objectives, the present invention adopts the following technical solution.

[0009] A passive explosion-proof lightning warning zone linkage control cabinet includes a control cabinet body, an explosion-proof sealed cabinet door, explosion-proof wiring ports, a passive magnetic control contactless execution circuit, a passive energy storage self-sustaining emergency module, multi-channel zone isolation linkage output channels, a multi-signal fusion linkage acquisition module, and an intrinsically safe current limiting isolation unit. The passive magnetic control contactless execution circuit eliminates mechanical contact structures, eliminating electric arcs and sparks throughout the process, meeting intrinsically safe explosion-proof deployment requirements. The passive energy storage self-sustaining emergency module enables emergency self-sustaining interlocking control under power outage and network interruption conditions. The multi-channel zone isolation linkage output channels enable independent and differentiated linkage control across multiple zones, with no crosstalk between channels. The multi-signal fusion linkage acquisition module integrates multiple risk signals, including lightning, combustible gases, and temperature, to achieve dual safety interlocking control.

[0010] The passive magnetically controlled contactless execution circuit uses permanent magnet magnetically controlled conductive elements to replace traditional mechanical relays. The whole machine adopts a full-circuit energy-limiting passive component design, with no metal contact opening and closing action. No electric sparks or arcs are generated during operation, eliminating the risk of ignition in flammable and explosive environments from the hardware source. It can be directly deployed in chemical Class I flammable and explosive explosion-proof areas, meeting the intrinsically safe explosion-proof standards for high-risk scenarios.

[0011] The passive energy storage self-sustaining emergency module consists of a large-capacity low-temperature energy storage capacitor array and a low-power control chip. It does not rely on external mains power supply. Under extreme conditions such as external mains power interruption and cloud communication disconnection, it can independently and continuously execute the risk avoidance interlocking actions of each zone. The self-sustaining working time is no less than 30 minutes, which completely solves the safety hazards of equipment protection failure under extreme thunderstorm weather in unmanned stations.

[0012] The multi-channel partitioned isolation linkage output channel is equipped with multiple sets of physically isolated independent output circuits. Each channel corresponds to the wind turbine position grid, energy storage compartment partition, and chemical plant explosion-proof partition. It can independently issue differentiated control commands such as wind turbine feathering, energy storage power slump, chemical depressurization, and feed cut-off. The signals of each channel are transmitted independently and do not interfere with each other. A single cabinet can complete the differentiated linkage control of multiple areas without the need for multiple devices to be deployed separately.

[0013] The multi-signal fusion and linkage acquisition module can simultaneously acquire lightning warning signals from the front-end lightning warning host, gas concentration data from combustible gas detectors in the plant area, and temperature monitoring data from equipment cabin temperature sensors. It has built-in dual-risk interlock control logic for lightning risk superimposed on hazardous chemical leakage and abnormal high temperature of equipment, realizing the upgrade from single lightning warning to multi-dimensional comprehensive risk linkage management and control, and making up for the shortcomings of site safety protection.

[0014] III. Installation and debugging steps.

[0015] S1. Based on the number of fan grids, energy storage clusters, and chemical plant zones in the site to be protected, match the number of independent output channels of the control cabinet and complete the binding and division of each control loop with the corresponding protection zone.

[0016] S2. Connect the passive energy storage self-sustaining emergency module, and calibrate the charging and discharging parameters and emergency self-sustaining time of the energy storage module through debugging equipment to ensure that it can stably achieve emergency interlocking operation for more than 30 minutes after power failure.

[0017] S3. Complete the multi-channel signal access operation, respectively connecting to the lightning warning host warning output signal, the plant area combustible gas detector signal, and the equipment cabin temperature sensor monitoring signal, to achieve synchronous collection of multi-source risk data.

[0018] S4. Configure differentiated linkage execution logic for each zone according to the protection requirements of different scenarios, and set exclusive control strategies for each zone such as fan feathering, energy storage power slump, chemical plant depressurization, and production feed cut-off.

[0019] S5. Perform explosion-proof sealing treatment on the control cabinet wiring ports, complete the intrinsically safe circuit current limiting, isolation, and withstand voltage safety verification of the whole machine, and ensure that the equipment meets the safety operation standards for explosion-proof areas.

[0020] S6. Conduct multi-condition simulation tests, simulating scenarios such as lightning warning triggering, mains power outage, combustible gas leakage, and abnormal high temperature of equipment, to verify the accuracy, stability, and independence of passive linkage execution in each zone. After successful debugging, it will be put into formal operation.

[0021] IV. Beneficial Effects.

[0022] Compared with existing traditional lightning linkage control cabinets, this invention has outstanding novelty, inventiveness and practicality, and has five core beneficial effects.

[0023] First, this invention adopts a full-circuit passive magnetic control contactless explosion-proof structure, which completely eliminates the defects of electric arc sparks generated by the opening and closing of traditional mechanical relay contacts. It eliminates the risk of electric spark ignition and explosion from the hardware source. The whole machine meets the intrinsic safety explosion-proof standard and can be directly deployed in first-level high-risk explosion-proof scenarios such as chemical industry and energy storage. The scenario adaptability and operational safety are greatly improved.

[0024] Secondly, the invention has a built-in passive energy storage self-sustaining emergency module. After power outages or network failures caused by extreme thunderstorms, it can still independently maintain emergency interlock control for more than 30 minutes and continuously execute zoned risk avoidance actions. This completely solves the pain points of protection failure and equipment loss of control under extreme conditions in unmanned stations, and greatly improves the station's lightning protection safety redundancy and adaptability to extreme environments.

[0025] Third, this invention sets up multiple physically isolated zone output channels, each loop is independently controllable and free from signal crosstalk, and a single cabinet can realize multi-area differentiated linkage control, replacing the traditional deployment mode of multiple separate control cabinets, which greatly reduces the cost of site hardware procurement, equipment deployment, operation and maintenance management, and simplifies the architecture of site linkage control system.

[0026] Fourth, this invention integrates and links multi-dimensional risk signals such as lightning, combustible gas, and equipment temperature, and constructs a dual safety interlock logic that combines lightning with hazardous chemical leakage and high temperature anomalies. It breaks through the limitations of traditional single lightning early warning and control, and comprehensively covers multiple safety risks of lightning, explosion-proof, and equipment overheating in the site, making the protection system more comprehensive and rigorous.

[0027] Fifth, this invention is compatible with a coordinated protection system that includes zoned lightning early warning, active energy storage protection, chemical explosion-proof identification, and wind power zoned risk avoidance. It forms a closed-loop security protection system integrating "early warning algorithm software - front-end data acquisition hardware - zoned linkage control cabinet", and improves the entire chain of lightning early warning, creating a high-barrier and systematic security protection technology matrix. Attached Figure Description

[0028] Figure 1 A three-dimensional schematic diagram of the overall structure of a passive explosion-proof lightning early warning zone linkage execution control cabinet.

[0029] Figure 2A three-dimensional schematic diagram of the internal module layout of a passive explosion-proof lightning early warning zone linkage execution control cabinet.

[0030] Figure 3 Schematic diagram of the three-dimensional structure of multi-channel partitioned isolation and linkage output channels.

[0031] Figure 4 A schematic diagram of the three-dimensional connection between the multi-signal fusion and linkage acquisition module and the passive energy storage self-sufficient emergency module.

[0032] Figure 5 A flowchart for the installation and commissioning of a passive explosion-proof lightning early warning zone linkage execution control cabinet.

[0033] Abstract and Figure Selection Figure 1 .

[0034] Explanation of reference numerals in the attached diagram: 1. Control cabinet body; 2. Explosion-proof sealed cabinet door; 3. Explosion-proof wiring port; 4. Passive magnetic control contactless execution circuit; 5. Passive energy storage self-sustaining emergency module; 6. Multi-channel zone isolation linkage output channel; 7. Multi-signal fusion linkage acquisition module; 8. Intrinsically safe current limiting isolation unit; 9. Low-temperature energy storage capacitor array; 10. Low-power control chip; 11. Lightning warning host interface; 12. Combustible gas detector interface; 13. Temperature sensor interface; 14. Wind power zone output terminal; 15. Energy storage zone output terminal; 16. Chemical zone output terminal; 17. Independent isolated output circuit; 18. Zone execution device. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] like Figures 1 to 4 As shown, the present invention discloses a passive explosion-proof lightning early warning zone linkage execution control cabinet, which mainly consists of a control cabinet body 1, an explosion-proof sealed cabinet door 2, an explosion-proof wiring port 3, a passive magnetic control contactless execution circuit 4, a passive energy storage self-sustaining emergency module 5, a multi-channel zone isolation linkage output channel 6, a multi-signal fusion linkage acquisition module 7, and an intrinsically safe current limiting isolation unit 8. It is widely applicable to multi-zone lightning protection and equipment interlocking safety management scenarios in chemical explosion-proof parks, energy storage cabin clusters, and large wind power bases.

[0037] During the specific assembly and implementation process, the channel adaptation and division were first completed according to the scale of the site. For the multi-station grid of large wind power bases, the multi-cabin cluster of energy storage power stations, and the multi-explosion-proof device zones of chemical industrial parks, multiple independent output channels of the control cabinet were matched accordingly to achieve one control per zone and corresponding zones. Subsequently, the assembly and parameter calibration of the passive energy storage self-sustaining emergency module 5 were completed, the charging and discharging efficiency of the cryogenic energy storage capacitor array 9 was debugged, and the low-power control logic of the low-power control chip 10 was optimized to ensure that the equipment can stably self-sustain for more than 30 minutes after the mains power and communication are completely interrupted, meeting the emergency protection requirements of extreme working conditions.

[0038] After hardware assembly is completed, multi-source monitoring signals are connected, including the graded early warning signal transmitted from the lightning early warning host interface 11, the gas concentration signal transmitted from the combustible gas detector interface 12, and the temperature monitoring signal transmitted from the temperature sensor interface 13. The multi-signal fusion and linkage acquisition module 7 completes real-time data acquisition, analysis, and judgment. According to the equipment attributes of different zones, the linkage strategy is configured differently: the wind power zone executes wind turbine feathering avoidance actions through the wind power zone output terminal 14; the energy storage zone executes power slump and shutdown protection actions through the energy storage zone output terminal 15; and the chemical explosion-proof zone executes pressure relief, feed cut-off, and equipment shutdown interlocking actions through the chemical zone output terminal 16. Each independent isolated output circuit 17 executes independently without interference.

[0039] The equipment adopts a fully passive, energy-limited, explosion-proof architecture, relying entirely on permanent magnet magnetically controlled conductive elements for circuit switching. It eliminates mechanical contacts and electric arcs, and, combined with the explosion-proof sealing structure of the cabinet and the intrinsically safe current-limiting isolation unit 8, fully meets the safety operation standards for high-risk explosion-proof areas. The system supports interlocking triggering for single lightning risks, single gas leak risks, single high-temperature risks, and multiple overlapping risk scenarios, achieving a multi-layered safety protection closed loop. This completely solves the technical problems of traditional control cabinets, such as poor explosion-proof performance, power failure, single control method, and incomplete protection.

[0040] like Figure 5 As shown, after the equipment is debugged, the overall performance is verified through multi-condition simulation tests. The accuracy of linkage under normal operating conditions, the stability of linkage during power failure, the isolation of independent control in multiple zones, and the accuracy of linkage under multiple risks are verified respectively to ensure the long-term stable, safe and reliable operation of the equipment, providing full-scenario, high-safety, zoned and intelligent lightning linkage safety protection capabilities for various high-risk sites.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A passive explosion-proof lightning early warning zone linkage execution control cabinet, characterized in that: The system includes a control cabinet, explosion-proof sealed cabinet door, explosion-proof wiring ports, a passive magnetic control contactless execution circuit, a passive energy storage self-sustaining emergency module, a multi-channel zone isolation linkage output channel, a multi-signal fusion linkage acquisition module, and an intrinsically safe current limiting isolation unit. The passive magnetic control contactless execution circuit is used to switch the interlocking execution circuit in the absence of mechanical contact opening and closing. The passive energy storage self-sustaining emergency module is used to provide emergency self-sustaining interlocking control energy when external mains power or communication link is interrupted. The multi-channel zone isolation linkage output channel is used to connect to the zone execution devices of different protection zones and output differentiated linkage control commands. The multi-signal fusion linkage acquisition module is used to simultaneously acquire lightning warning signals, combustible gas concentration signals, and temperature monitoring signals, and trigger the interlocking control of the corresponding zone based on multiple risk signals.

2. The passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The passive magnetically controlled contactless execution circuit uses a permanent magnet magnetically controlled conductive element to replace the mechanical relay. The permanent magnet magnetically controlled conductive element does not generate mechanical contact opening and closing action during the switching process of the execution circuit, so that no electric arc or electric spark is generated during the operation.

3. The passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The intrinsically safe current limiting isolation unit is located between the passive magnetic control contactless execution circuit, the multi-channel partitioned isolation linkage output channel and the explosion-proof wiring port, and is used to limit the energy, limit the current, withstand voltage isolation and prevent crosstalk protection of the interlocking execution signal.

4. The passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The passive energy storage self-sustaining emergency module includes a low-temperature energy storage capacitor array and a low-power control chip. The low-temperature energy storage capacitor array is used to store emergency interlock control energy, and the low-power control chip is used to maintain the operation of the partition linkage logic under power outage and network disconnection conditions.

5. A passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 4, characterized in that: The passive energy storage self-sufficient emergency module can continuously and independently execute zoned risk avoidance interlocking actions for no less than 30 minutes when both external mains power and communication links are interrupted.

6. The passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The multi-path partitioned isolation linkage output channel includes multiple sets of physically isolated independent isolation output circuits, each of which corresponds to a wind turbine grid, an energy storage compartment partition, or a chemical plant explosion-proof partition.

7. A passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 6, characterized in that: The multi-channel partitioned isolation and linkage output channels can output wind turbine feathering, energy storage power slump, energy storage shutdown protection, chemical plant depressurization, production feed cut-off, or equipment shutdown interlock control commands respectively, and there is no crosstalk between the independent isolation output circuits.

8. The passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The multi-signal fusion and linkage acquisition module is connected to the lightning early warning host interface, the combustible gas detector interface, and the temperature sensor interface, respectively, and is used to superimpose and judge the lightning risk, hazardous chemical leakage risk, and equipment high temperature risk.

9. A passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 8, characterized in that: The multi-signal fusion and linkage acquisition module has a built-in dual risk interlocking control logic. When the lightning warning signal is superimposed with the abnormal combustible gas concentration signal, or when the lightning warning signal is superimposed with the abnormal temperature signal, the enhanced interlocking control command of the corresponding protection zone is triggered.

10. A passive explosion-proof lightning early warning zone linkage execution control cabinet according to claim 1, characterized in that: The explosion-proof sealed cabinet door and the explosion-proof wiring port cooperate to form an explosion-proof sealing structure. The explosion-proof sealing structure is used to seal and protect the passive execution circuit, energy storage self-sustaining circuit, acquisition circuit and zone output circuit inside the control cabinet.

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