Title:
CUTTING NOZZLE
Document Type and Number:
WIPO Patent Application WO/2019/174451
Kind Code:
A1
Abstract:
Disclosed is a cutting nozzle, comprising a nozzle core (31) and a nozzle cap (32) sheathed around the nozzle core (31), wherein the nozzle core (31) comprises a nozzle cap connecting screw thread (33), a metal pipe (37), an insulating pipe (34) and an oxygen outlet nozzle (35), which are sequentially connected; the nozzle cap (32) is sheathed around the nozzle core (31) and is in threaded connection with the nozzle cap connecting screw thread (33); a gap between the nozzle cap (32) and the nozzle core (31) is a mixed gas outlet; the nozzle cap connecting screw thread (33) comprises a high-pressure oxygen outlet hole, the metal pipe (37) is in communication with the high-pressure oxygen outlet hole, the insulating pipe (34) is inserted into the metal pipe (37), and one end of the oxygen outlet nozzle (35) is inserted into the insulating pipe (34); and an outlet at a front end of the nozzle cap (32) is provided with a metal ring (321), an insulating ring (322) is arranged on the inner side of the metal ring (321), a hole of the insulating ring (322) is a mixed gas outlet hole, and an area between the metal ring (321) and a front end of the oxygen outlet nozzle (35) is a pulse ignition discharge zone. By increasing the hole diameter of the mixed gas outlet hole and arranging the insulating ring (322) in the hole, the shortest distance from the front end of the oxygen outlet nozzle (35) to the metal ring (321) at the front end of the nozzle cap (32) is increased, and the pulse ignition efficiency is improved.
Inventors:
XU MUQING (CN)
Application Number:
PCT/CN2019/075877
Publication Date:
September 19, 2019
Filing Date:
February 22, 2019
Export Citation:
Assignee:
XU MUQING (CN)
International Classes:
F23D14/42; F23D14/54
Foreign References:
| CN207936077U | 2018-10-02 | |||
| CN108561881A | 2018-09-21 | |||
| CN2570636Y | 2003-09-03 | |||
| CN204141585U | 2015-02-04 | |||
| CN2124380U | 1992-12-09 | |||
| CN2301287Y | 1998-12-23 | |||
| CN107559829A | 2018-01-09 | |||
| CN106765303A | 2017-05-31 | |||
| CN206608982U | 2017-11-03 | |||
| EP0093048A2 | 1983-11-02 | |||
| EP0102907A2 | 1984-03-14 | |||
| JPS6189416A | 1986-05-07 |
Attorney, Agent or Firm:
SBZL IP LAW OFFICE (CN)
Download PDF:
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