国家/地区 中国（3）
IPC部 F（3）
IPC大类 F25（3）
IPC小类 F25D（3）
IPC F25D017/06（3）
发明人
公开年 2022（3）
申请年
专利权人

Cooling device for reaction of polycarboxylic acid high performance water reducing agent, comprises cooling box, bottom plate, radiating pipe and guide plate, where two sides of cooling box is equipped with air inlet screen.

REN X, ZHANG M, JIA J, JIA R

Air purifying module used in refrigerator, comprises fan, filtering and absorbing device comprising composite photo-catalytic material comprising titanium dioxide and graphene composite photocatalyst, and filter adsorption net.

JIANG B, YI Y

Device for preparing graphene nano material, has telescopic sleeve whose top end is connected with cooling box, where inner part of telescopic sleeves is provided with damping spring, and number of damping springs is in specific range.

GONG B, GONG R