CN201866431U - Concentric reducer - Google Patents

Concentric reducer Download PDF

Info

Publication number
CN201866431U
CN201866431U CN2010206142272U CN201020614227U CN201866431U CN 201866431 U CN201866431 U CN 201866431U CN 2010206142272 U CN2010206142272 U CN 2010206142272U CN 201020614227 U CN201020614227 U CN 201020614227U CN 201866431 U CN201866431 U CN 201866431U
Authority
CN
China
Prior art keywords
straight
reducer
pipeline
concentric reducer
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010206142272U
Other languages
Chinese (zh)
Inventor
陈德胜
赵明
李娜
张桂娥
杨春艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd
Original Assignee
YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd filed Critical YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd
Priority to CN2010206142272U priority Critical patent/CN201866431U/en
Application granted granted Critical
Publication of CN201866431U publication Critical patent/CN201866431U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a concentric reducer. The utility model adopts the technical scheme that the concentric reducer is characterized in that a straight section I and a straight section II are formed at two ends of a conical section; the diameter of the reducer at the straight section I is greater than that of the reducer at the straight section II. When the concentric reducer works, the straight section I is butted against a pipeline with large caliber; the straight section II is butted against a pipeline with small caliber; and then two pipelines are welded together. With the straight sections, the concentric reducer facilitates the welding and nondestructive testing, is simple for operation and has favorable welding and forming performances. According to the utility model, reducers with DN (nominal diameter) of below 2400 can be manufactured.

Description

Concentric Reducers
Technical field
The utility model relates to a kind of mainly in oil-gas pipeline, chemical industry equal pressure container industry, is used for the connection of different bore specification pipelines.
Background technique
Along with the expansion of China's oil and natural gas line and the expansion gradually of pressurized container scale, the specification of pipeline strengthens gradually, cause the bore of most of pipelines also to strengthen gradually, different with original pipeline bore, in the prior art, directly adopt the cone pipe that two pipelines are welded together the pipeline of two kinds of different bores, be unfavorable for operation, and welding fabrication is bad, is unfavorable for non-destructive inspection.
Summary of the invention
In order to address the above problem, the purpose of this utility model provides a kind of pipeline welding that helps, and welding fabrication is good, helps the Concentric Reducers of non-destructive inspection.
To achieve these goals, the technical solution adopted in the utility model is: a kind of Concentric Reducers is characterized in that: be shaped on straight section I and straight section II at the two ends of cone segments, the pipe diameter at straight section I place is greater than the pipe diameter at straight section II place.
The pipe diameter at described straight section I place is 1400~1600mm, and the pipe diameter at straight section II place is 1100~1300mm.
Difficulty of processing at pipeline steel band straight section reducer is big, and we adopt thermoforming processing reducer at the performance of pipe line steel.Adding man-hour, heating behind the reducer expansion setting-out is being rolled, heat-treating after the welding, using the bed die tire again and turn over straight section.
The beneficial effects of the utility model are: during work, the straight section I is docked with bigbore pipeline, the straight section II is docked with small-bore pipeline, weld together then,, help welding owing to be provided with straight section, simple to operate, and welding fabrication is good, helps non-destructive inspection.The following reducer of the utility model DN2400 all can be made.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of Concentric Reducers: be provided with straight section I (2) and straight section II (3) at the two ends of cone segments (1), the pipe diameter that the pipe diameter that straight section I (2) is located is located greater than straight section II (3).
Present embodiment, the pipe diameter that straight section I (2) is located is φ 1524mm, and the pipe diameter that straight section II (3) is located is φ 1219.2mm, and structure length is: 762mm, product wall thickness are 40mm, and material is MSS SP 75 WPHY70 pipe line steels.
The utility model is the cone of two ends band straight section, is used for the different size pipeline is linked together.

Claims (1)

1. a Concentric Reducers is characterized in that: be shaped on straight section I (2) and straight section II (3) at the two ends of cone segments (1), the pipe diameter that the pipe diameter that straight section I (2) is located is located greater than straight section II (3).
CN2010206142272U 2010-11-19 2010-11-19 Concentric reducer Expired - Fee Related CN201866431U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206142272U CN201866431U (en) 2010-11-19 2010-11-19 Concentric reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206142272U CN201866431U (en) 2010-11-19 2010-11-19 Concentric reducer

Publications (1)

Publication Number Publication Date
CN201866431U true CN201866431U (en) 2011-06-15

Family

ID=44137586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206142272U Expired - Fee Related CN201866431U (en) 2010-11-19 2010-11-19 Concentric reducer

Country Status (1)

Country Link
CN (1) CN201866431U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103239996A (en) * 2012-02-03 2013-08-14 三菱丽阳可菱水株式会社 Method for manufacturing hollow fiber membrane module and guide member
WO2013139172A1 (en) * 2012-03-19 2013-09-26 镇海石化建安工程有限公司 Heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103239996A (en) * 2012-02-03 2013-08-14 三菱丽阳可菱水株式会社 Method for manufacturing hollow fiber membrane module and guide member
WO2013139172A1 (en) * 2012-03-19 2013-09-26 镇海石化建安工程有限公司 Heat exchanger

Similar Documents

Publication Publication Date Title
CN201394704Y (en) Argon-filling welding protective cover
CN201866431U (en) Concentric reducer
CN105880952A (en) Production process of longitudinal submerged arc welded pipe for oil and gas transmission
CN203092055U (en) Pipeline outer aligning device capable of adjusting space between pipe sections
CN204986213U (en) Run from opposite directions shutoff tee bend with strengthening rib
CN101844290A (en) Manufacturing process of close-wound wall sticking coil tubes for large-scale equipment
CN203869960U (en) Pipe fitting quick pressure-testing device
CN202349478U (en) Four-way reducing stainless steel pipeline
CN204035273U (en) Light-wall pipe bending pipe machine
CN103639656B (en) External diameter 76mm and above 6m titanium pipeline straight seam welding technique thereof
CN202746810U (en) Connecting pipe fitting of ship pipeline
CN202972243U (en) Double-wall muffling spiral steel pipe
CN213728846U (en) Pipe forming device
CN202336641U (en) Pipe hinge plate righting disc
CN201552752U (en) Plastic piping butting and flanging device
CN102407247A (en) Manufacturing method of steel longitudinal submerged arc welding steel pipe for high-temperature and high-pressure boiler
CN104511720A (en) Reducing production method of deepwater submerged arc welding large-caliber steel pipes
CN201083310Y (en) Large pipeline network emergency repair junction
CN202646990U (en) Reducer pipeline connector
CN203221083U (en) Longitudinal welded pipe production line
CN200996513Y (en) Large-aperture elbow with welding-pipe push
CN202371368U (en) Two-way reducing stainless steel pipeline
CN104128404A (en) Thin walled pipe bending technology and device
CN204647654U (en) The bigbore novel three-way pipe fitting of X80-X100 grade of steel
CN203927221U (en) Expansion joint

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110615

Termination date: 20191119

CF01 Termination of patent right due to non-payment of annual fee