公开(公告)号：US20240200453A1

公开(公告)日：2024-06-20

申请号：US18545240

申请日：2023-12-19

Applicant: CHINA ACADEMY OF SAFETY SCIENCE AND TECHNOLOGY

Inventor： Jian LI ,  Congling SHI ,  Guolin LIU ,  Fei REN ,  Li HE ,  Xiaodong QIAN ,  Xuan XU ,  Jiehong SHI ,  Chen ZHAO

IPC: E21F1/00 ,  B61L25/02 ,  G08B17/10

CPC classification number: E21F1/003 ,  B61L25/021 ,  G08B17/10

Abstract: A method and apparatus for fire ventilation and smoke evacuation in a running train tunnel are provided. The method includes: acquiring a traveling position of the train and a fire position on the train detected by the fire positioning device; predicting all possible stop positions of the train next in various sections of a subway tunnel according to a traveling direction and the traveling position of the train; according to the fire position, listing working state options of the air supply and smoke evacuation subsystems at both ends of each stop position, analyzing each working state option, and screening out a target air supply and smoke evacuation subsystem which only carries out smoke evacuation or air supply control from all the air supply and smoke evacuation subsystems; and performing linkage control on the target air supply and smoke evacuation subsystem.

公开(公告)号：US20240216886A1

公开(公告)日：2024-07-04

申请号：US18395759

申请日：2023-12-26

Applicant: CHINA ACADEMY OF SAFETY SCIENCE AND TECHNOLOGY

Inventor： Congling SHI ,  Jingyun JING ,  Guolin LIU ,  Xiaodong QIAN ,  Fei REN ,  Junyi LI

IPC: B01J13/18 ,  B01J13/20 ,  C08F112/12 ,  C08K9/06

CPC classification number: B01J13/18 ,  B01J13/203 ,  C08F112/12 ,  C08K9/06 ,  C08K2201/005 ,  C08K2201/01 ,  C08K2201/011

Abstract: A colloidosome with a variable pore size and a preparation method thereof are provided. The preparation method includes the steps of modification of nanoparticles, preparation of amphiphilic nanoparticles, preparation of a colloidosome with a variable pore size and the like. Through specific setting of each step, the finally prepared colloidosome is stable and has a variable pore size, and a hydrophobic polymer chain in a cavity of the colloidosome has corresponding contraction and extension forms in different medium environments, such as water and oil, to block or expose pores, so as to meet application requirements for transmission in selective media.

公开(公告)号：US20240327711A1

公开(公告)日：2024-10-03

申请号：US18624049

申请日：2024-04-01

Applicant: China Academy of Safety Science and Technology

Inventor： Congling SHI ,  Xiaodong QIAN ,  Li HE ,  Honglei CHE ,  Mei WAN ,  Jingyun JING ,  Guolin LIU ,  Dan WANG ,  Fei REN

IPC: C09K21/02 ,  C09K21/14

CPC classification number: C09K21/02 ,  C09K21/14

Abstract: The present disclosure relates to a flame retardant composed of multi-component phase change material particles. These particles consist of paraffin wax, nano-flame retardant, and conventional flame retardant. The phase change material is modified with nano-flame retardant and physically coated with conventional flame retardant. The multi-component phase change material flame retardant is formed by creating a two-layer nucleus-shell structure. The nucleus core is made up of the conventional flame retardant, while the shell layer is composed of the nano-flame retardant doped phase change material. The multi-component flame retardant material combines the performance advantages of phase change material, nano flame retardant, and conventional flame retardant. The combination of nano flame retardant and phase change material weakens the disadvantages of phase change material and allows for the full utilization of the energy storage capabilities of the phase change material.

公开(公告)号：US20230174866A1

公开(公告)日：2023-06-08

申请号：US18077250

申请日：2022-12-08

Applicant: China Academy of Safety Science and Technology

Inventor： Congling SHI ,  Xiaodong QIAN ,  Jingyun JING ,  Honglei CHE ,  Mei WAN

IPC: C09K21/14 ,  C08L77/02 ,  C08L23/12 ,  C08L63/00 ,  C08K5/56 ,  C08B37/08 ,  C08B31/00 ,  C09K21/12 ,  C09K21/10

CPC classification number: C09K21/14 ,  C08L77/02 ,  C08L23/12 ,  C08L63/00 ,  C08K5/56 ,  C08B37/003 ,  C08B31/00 ,  C09K21/12 ,  C09K21/10 ,  C08L2201/02

Abstract: A method for preparing an MOFs flame retardant modified by layer-by-layer self-assembly of an intumescent flame retardant is provided. The method mainly includes the steps of preparing MOFs, a positive electrolyte solution, and a negative electrolyte solution; dispersing the MOFs in the negative electrolyte solution; dispersing an obtained mixture in the positive electrolyte solution; obtaining a first double-molecule self-assembled layer on surfaces of the MOFs; and repeating the above operations for several times to obtain an MOFs flame retardant modified by intumescent self-assembled layers. The modified MOFs flame retardant of the present disclosure has excellent flame retardancy, flame retardant synergism, and dispersibility, and the defects of poor dispersibility and low flame retardant efficiency of MOFs flame retardants are overcome. A great application prospect is achieved.