国家/地区 中国（4）
IPC部 B（4）
IPC大类 F16（4） B29（3） B32（2）
C08（2）
IPC小类 F16L（4） B29D（2） B32B（2）
C08K（2） C08L（2）
IPC F16L009/12（4）
发明人 HUO F（3） SONG Q（2） WANG J（2）
公开年 2022（4）
申请年 2022（3） 
专利权人 LINHAI WEIXI.（3） ZHEJIANG WEI.（2）

Deep geothermal thermal insulation composite pipeline comprises four-layer composite structure, and from inside to outside are inner layer base pipe, plane high thermal conductivity layer, polyethylene foam layer and outer layer pipe, and inner layer base pipe is extruded polyethylene or PERT.

HUO F, WANG D, ZHANG Y, WANG J

High-strength temperature medium conveying pipeline comprises e.g. rigid reinforcing layer, polyethylene of raised temperature resistance modified foam layer, anisotropic plane high thermal conductivity graphene layer and inner core pipe in turn from outside to inside.

WANG J, SONG Q, HUO F, CHU Z

Weather-resistant drainage pipeline with multilayer structure, comprises an inner layer, an intermediate layer and an outer layer, where the intermediate layer pipe comprises PVC resin, calcium carbonate powder, calcium-zinc heat stabilizer, solid plasticizer, processing aid and toughening modifier.

HUO F, CHEN H, SONG Q, FENG J

Polybutylene composite pipe used in hot spring transportation, comprises anti-corrosion outer layer, thermal insulation layer and working inner layer from outside to inside, where working inner layer is made of polybutene material and insulation layer is made of polyethylene foamed plastic.

QIN X, YI Z, WANG L, JIN J, LIANG Y