主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

Fire Science and Technology ›› 2021, Vol. 40 ›› Issue (7): 1038-1042.

Previous Articles     Next Articles

Fire resistance improvement measures research for water spray fire protection pipe network of UHV transformers

QIU Ning1, ZHANG Jia-qing2,3,4, WANG Hui5, GUO Yi2,3,4, LI Guo-hui6, XIE Jia7, LIU Rui2,3,4   

  1. 1. State Grid Co., Ltd., Beijing 100031, China; 2. State Grid Anhui Electric Power Research Institute, Anhui Hefei 230601, China; 3. Anhui Province Key Laboratory of Electric Fire and Safety Protection, Anhui Hefei 230022, China; 4. State Grid Laboratory of Fire Protection for Transmission and Distribution Facilities, Anhui Hefei 230022, China; 5. State Grid Economic and Technology Research Institute Co., Ltd., Beijing 102209, China; 6. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China; 7. State Grid Anhui Electric Power Co., Ltd., Anhui Hefei 230061, China
  • Online:2021-07-15 Published:2021-07-15

Abstract: The integrity of the stock fixed extinguishing system of the UHV substation is an important prerequisite to realize its extinguishing ability. First, the fire resistance status of fire pipe network of water spray extinguishing system for the UHV sub station is defined by comparing fire resistance test methods of fire pipe specified in existing standards and combining with true fire extinguishing test data of UHV transformer. Secondly, the principle of gas burner is used to design the test ignition source. The temperature of the test ignition source is in good agreement with the temperature measured in the fire extinguishing test of the full- size UHV transformer model. Therefore, using the test ignition source to carry out the fire resistant test can be more in line with the actual possible heating situation. Finally, through the comparative test, some suggestions to improve the fire resistance of water spray fire pipe network are proposed, which can provide reference for the actual engineering reconstruction and construction.

Key words: UHV, transformer, water spray extinguishing system, fire pipe network, fire resistant