The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2025
Filed:
Jul. 10, 2019
Anping Zhao, Beijing, CN;
Anping Zhao, Beijing, CN;
Abstract
A graphene-heating and heat preserving sleeve for a oilfield petroleum gathering pipeline includes a the high-temperature-resistant insulating layer (), a graphene layer (), a high-temperature-resistant ceramic layer (), a waterproof and anti-static heat preservation layer (), and a housing () that are tightly attached together in sequence; the two semi-cylindrical parts of the graphene-heating and heat-preserving sleeve are coupled together, so that the petroleum gathering pipeline is wrapped in the graphene-heating and heat-preserving sleeve. When electricity is applied to the electrode layers arranged at two ends of the graphene layer (), under the action of an electric field, heat energy generated due to intense friction and collision between carbon atoms in the graphene is radiated out through far infrared rays with a wavelength of 5 to 14 microns.