Processing method for improving insulator flashover voltage through atmospheric pressure plasma jet method

A plasma and flashover voltage technology, applied in the direction of insulators, circuits, electrical components, etc., can solve the problems of pot insulator local field strength distortion along the surface, frequent insulator failures, increased flashover along the surface, etc., to improve operation stability performance, increase the flashover voltage, and reduce the effect of electric field distortion
CN110853848AInactive Publication Date: 2020-02-28TIANJIN UNIV +1
6 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2020-02-28
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a processing method for improving insulator flashover voltage through an atmospheric pressure plasma jet method. The method comprises steps of ionizing tetraethyl orthosilicateTEOS mixed gas in a plasma jet pipe to obtain plasmas; the plasmas are sprayed to a surface of a direct-current basin-type insulator to form surface deposition of 500nm-2mu m to obtain a high-voltagedirect-current basin-type insulator with different conductivities, specifically, a quartz glass tube is used as a jet tube body, a hollow or solid conductor tube is used as a plasma guide tube and aninternal high-voltage electrode, and a copper foil is attached to a tail end of an outer side of the jet tube; the TEOS liquid filled with the precursor is heated; one path of 150-250sccm argon is introduced into a gas washing bottle, the precursor TEOS molecules are brought into a jet pipe, the precursor TEOS molecules are fully mixed with the other path of 5-7slm argon, the mixture is introduced into the jet pipe, and the plasmas are formed through ionization. The method is advantaged in that a mechanical arm is adopted to clamp the jet pipe, the jet pipe is controlled to spray the plasmasperpendicular to a surface of an insulating material and move parallel to a surface of the insulating material, and a modified object is subjected to plasma treatment.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of insulation preparation for high-voltage equipment, and in particular relates to a treatment method for improving the flashover voltage of insulators by an atmospheric pressure plasma jet method. Background technique

[0002] In recent years, with the development of high-voltage and large-capacity power transmission in power systems, gas-insulated metal-enclosed switchgear (GIS) and gas-insulated metal-enclosed transmission lines (GIL) have advantages, has been widely concerned and applied. Among them, the pot insulator not only plays the role of mechanical support, but also acts as an electrical insulator, which plays a decisive key role in the safe and stable operation of the entire GIS and GIL. However, even in the demanding ±800kV DC UHV project, epoxy cast insulators still have frequent failures.

[0003] It is generally believed that when GIS / GIL is operated under DC voltage for a long time, the surface of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More