Title:
NON-DESTRUCTIVE LINING DEVICE AND METHOD FOR LINING CORE PIPE IN LINING PROCESS
Document Type and Number:
WIPO Patent Application WO/2023/015686
Kind Code:
A1
Abstract:
Disclosed in the present invention are a non-destructive lining device and method for a lining core pipe in a lining process. The lining device comprises a device frame, a multi-level diameter reduction module, a traction apparatus, a fixing apparatus, a guide wheel set, and a protective cover. Central lines of a lined pipe, the multi-level diameter reduction module, and a steel pipe are located on a same straight line. Both ends of the lined pipe are connected to traction heads arranged on one end of the device frame. The steel pipe is fixed on the fixing apparatus arranged on the other end of the device frame. A winch provides a tractive force to drive the lined pipe to complete the lining operation on the steel pipe. The traction heads are connected to the head and the tail of the lined pipe in the whole diameter reduction and lining processes for providing a continuous and stable axial stress to the lined pipe, and it is ensured that after the diameter reduction of the lining core pipe is completed, the lining core pipe maintains a diameter reduction state and is prevented from rebounding. At this time, the outer diameter of the lining core pipe is less than the inner diameter of the steel pipe, so that the lining core pipe can be extremely smoothly lined into the steel pipe without obvious friction, and the failure of a composite pipe caused by the abrasion of the outer surface of the lining core pipe can be effectively avoided.
Inventors:
JIN CHONGYANG (CN)
LIU YUEMING (CN)
CHU ZHANPENG (CN)
CHU ZHANZHOU (CN)
CHEN JIANGHUI (CN)
HUO FULEI (CN)
LIU YUEMING (CN)
CHU ZHANPENG (CN)
CHU ZHANZHOU (CN)
CHEN JIANGHUI (CN)
HUO FULEI (CN)
Application Number:
PCT/CN2021/120680
Publication Date:
February 16, 2023
Filing Date:
September 26, 2021
Export Citation:
Assignee:
LINHAI WEIXING NEW BUILDING MAT CO LTD (CN)
International Classes:
B29C63/34; B29L23/00
Foreign References:
| CN112549522A | 2021-03-26 | |||
| CN206678263U | 2017-11-28 | |||
| JP2003238080A | 2003-08-27 | |||
| CN212510053U | 2021-02-09 | |||
| CN109681717A | 2019-04-26 | |||
| CN111587217A | 2020-08-25 | |||
| CN205167541U | 2016-04-20 |
Attorney, Agent or Firm:
HANGZHOU ZHEKE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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