Dual Fire Extinguishing Coverage for UHV Converter Transformers
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Solution Overview
Problem
Current fire extinguishing systems in UHV converter stations are inadequate in covering all fire characteristics and behaviors of converter transformers, lack redundancy and reliability, fail to protect against explosive impacts, and do not provide specific response times or protective measures for critical components like the bushing and lifting seat.
Innovation Solution
A dual fire extinguishing system comprising a spray fire extinguishing system and a fire monitor-based system, with each system connected to independent medium generation subsystems and control modules, ensuring comprehensive coverage and redundancy, and incorporating anti-explosion design for critical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fire extinguishing systems (water mist, foam spray, CO2) are used for converter transformers, then the system structure is relatively simple and easy to implement, but they cannot completely cover all fire characteristics and behaviors of UHV converter transformers, leading to insufficient fire protection effectiveness
Solution Approach 1:
The patent combines multiple fire extinguishing technologies (water spray system, foam spray system, and compressed air foam system) into a single integrated fire extinguishing system. This merging allows the system to cover various fire characteristics and behaviors of UHV converter transformers comprehensively, improving fire protection effectiveness while managing system complexity through unified control
Solution Approach 2:
The fire extinguishing system is designed with multi-functionality to handle different fire scenarios. It can switch between water spray mode, foam spray mode, and compressed air foam mode depending on the fire characteristics, making the system universally applicable to various fire situations in UHV converter transformers
2Reliability
If a single fire extinguishing system is deployed in the converter transformer region, then the system structure is simple, but it lacks redundancy and has low system reliability
Solution Approach 1:
The patent implements redundancy by configuring backup fire extinguishing systems in advance. When the primary system fails or is insufficient, the backup system can immediately take over, ensuring continuous fire protection capability. This prior cushioning approach enhances system reliability without requiring complex real-time decision mechanisms
3Object-affected harmful factors
If conventional fire extinguishing systems are used, then the system design is straightforward, but they lack protective measures against explosive impacts on critical components
Solution Approach 1:
The patent applies preliminary anti-action by positioning fire extinguishing components and protective structures in advance to counteract explosive impacts. The system includes protective measures for critical components such as the bushing and lifting seat, arranged beforehand to resist potential explosive forces and protect against harm before it occurs
4Loss of time
If conventional fire extinguishing systems are deployed, then installation and operation are simple, but they do not provide specific response times for fire suppression
Solution Approach 1:
The patent incorporates feedback mechanisms in the control system that monitor fire conditions and automatically adjust the fire extinguishing response. The system detects fire parameters, processes the information, and triggers appropriate extinguishing actions with specific response times, creating a closed-loop control system that reduces time loss while managing complexity through automated decision-making
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides complete coverage of fire characteristics, enhances system reliability through redundancy, protects against explosive impacts, and ensures rapid and effective fire suppression, particularly at critical transformer components.
Implementation Method 1
a spray pipe 402 connected to said first fire pipeline 401, wherein said fire extinguishing medium generation subsystem is disposed away from a region in which the converter transformer is located, and an outlet of the fire extinguishing medium generation subsystem is connected to an inlet of the first fire pipeline 401; a plurality of outlets of the spray pipe 402 face a surrounding region of the converter transformer 1
Implementation Method 2
a second fire pipeline 501 connected to the first fire pipeline 401, wherein an outlet of the second fire pipeline 501 is located at a higher end above the converter transformer 1, and a fire monitor 502 connected to the second fire pipeline 501 faces the converter transformer 1
Data Source
AI summary
Disclosed are a fire extinguishing system and method for an ultra-high voltage (UHV) converter station, and a UHV converter station. The fire extinguishing system includes a spray fire extinguishing system and a fire monitor-based fire extinguishing system, where the spray fire extinguishing system includes a first fire pipe and a spray pipe; the fire monitor-based fire extinguishing system includes a second fire pipe and a fire monitor; one fire monitor is disposed right above a firewall on both sides of each converter transformer in the UHV converter station, and each fire monitor is connected to one second fire pipe; a spray pipe is disposed on the firewall on both sides of each converter transformer; and the fire monitor corresponding to each converter transformer, and an outlet of the spray pipe connected to the first fire pipe corresponding to each converter transformer face the converter transformer.