国家/地区 中国（11）
IPC部 F（11）
IPC大类 F16（11） B29（3） C08（3）
C09（3）
IPC小类 F16L（11） B29D（3） C08K（3）
C08L（3） C09D（3）
IPC F16L009/14（11）
发明人 LI Y（2） MA Z（2） TANG Z（2）
WANG Y（2） YU J（2） ZHAO M（2）
公开年 2022（7） 2023（4）
申请年 2022（11）
专利权人 NINGXIA QING.（2）

Polyethylene solid wall pipe has flocculent layer graphene and high density polyethylene layer that are provided with group of radiating holes connected with each other.

YUAN S

Expansion joint of catalytic cracking, has corrugated pipe and flange that are made of titanium material and inner wall of corrugate pipe is provided with anti-corrosion layer.

GU L, MIAO X, QIAN Y, XIA G

Aramid fiber winding composite pipeline for conveying hydrogen, has wearable layer located in inner layer of hydrogen blocking layer, where wearable layer is wearable plastic and is provided between core tube layer and outer protective layer.

WANG Y, MA Z, ZHAO M, LI Y, YU J, TANG Z

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Air conditioner radiating copper pipe, has pipe body provided with heat exchange groove and surface of pipe body is provided with graphene anti-oxidant layer.

FANG Y

Prefabricated insulating stainless steel pipe composite material steam insulating pipe, has graphene heat conducting layer set between adjacent separating reinforcing sheet, and heat tracing thin cable installed at middle position.

ZHANG X, ZHANG C

Ground heating pipe with high heat conductivity, has surface of second cross-linked polyethylene pipe is integrally formed with base and surface of base is provided with fixing component.

FU X

Electric melting pipe fitting for high voltage composite pipeline, comprises outer protective layer from inside to outside, where material of hydrogen blocking layer is polyamide resin composition, where polyamide resin composition contains polyamide resin, and particulate inorganic compound.

MA Z, WANG Y, ZHAO M, YU J, LI Y, TANG Z

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

Deep ground hot water conveying pipeline for extracting hot water, comprises middle winding layer which is high heat conducting material, and outer layer pipe which is polyethylene terephthalate extruded and covered on outer surface.

HUO F, CHU Z, SONG Q, FENG J