CN114165641B - Centering device for coke oven basement heating gas pipeline - Google Patents

Centering device for coke oven basement heating gas pipeline Download PDF

Info

Publication number
CN114165641B
CN114165641B CN202111472144.3A CN202111472144A CN114165641B CN 114165641 B CN114165641 B CN 114165641B CN 202111472144 A CN202111472144 A CN 202111472144A CN 114165641 B CN114165641 B CN 114165641B
Authority
CN
China
Prior art keywords
supporting rod
centering device
coke oven
heating gas
support rod
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.)
Active
Application number
CN202111472144.3A
Other languages
Chinese (zh)
Other versions
CN114165641A (en
Inventor
吴鹏涛
夏春
莫时化
郝治国
范海强
关志刚
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.)
China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group 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 China First Metallurgical Group Co Ltd filed Critical China First Metallurgical Group Co Ltd
Priority to CN202111472144.3A priority Critical patent/CN114165641B/en
Publication of CN114165641A publication Critical patent/CN114165641A/en
Application granted granted Critical
Publication of CN114165641B publication Critical patent/CN114165641B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/06Accessories therefor, e.g. anchors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00Branching pipes; Joining pipes to walls
    • F16L41/08Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F16M13/022Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

A coke oven basement heating gas pipeline intersecting centering device relates to the field of positioning devices. The centering device for the coke oven basement heating gas pipeline intersecting comprises a supporting rod, a handle rotatably sleeved on the supporting rod, an infrared emission pen coaxially connected with one end of the supporting rod, two nuts arranged up and down, and a plurality of supporting rods arranged at intervals along the circumferential direction of the supporting rod, wherein the axes of the supporting rods and the supporting rod are arranged in parallel, the two nuts are respectively sleeved on one end of the supporting rod far away from the infrared emission pen through positive threads and reverse threads, each nut is hinged with each supporting rod through a connecting rod, and the infrared emission pen is used for emitting infrared light towards the direction far away from the supporting rod. The centering device for the intersecting of the heating gas pipelines of the coke oven basement provided by the embodiment has the advantages of simple structure and convenience in use, can realize accurate centering and positioning of pipelines, and can adapt to positioning of inner diameters of pipelines with different specifications and pipeline operation in narrow spaces.

Description

Centering device for coke oven basement heating gas pipeline
Technical Field
The application relates to the field of positioning devices, in particular to a centering device for a heating gas pipeline of a coke oven basement.
Background
In the construction of a heating gas pipeline of a coke oven basement, the problems of positioning and perforating are involved in the butt joint process of a lower spray pipe and a transverse calandria and the butt joint process of the transverse calandria and a main gas pipeline. The traditional construction method adopts the line drop hanging wire to carry out positioning and perforating, but the line drop hanging wire is too large and too long and is influenced by construction environment, so that the defect of larger final deviation often occurs during operation of the line drop hanging wire, the line drop hanging wire does not meet the horizontal and vertical requirements of the specification, serious misplacement between the pipelines is easily caused, the welding quality is reduced, and the large safety risk exists.
Therefore, there is a need to design a centering and positioning device with simple structure, high concentricity and adaptability to different types of pipelines to solve the above problems.
Disclosure of Invention
The application aims to provide a centering device for a heating gas pipeline of a coke oven basement, which can realize accurate centering and positioning of pipelines, and can adapt to positioning of inner diameters of pipelines with different specifications and pipeline operation in a narrow space.
Embodiments of the present application are implemented as follows:
the embodiment of the application provides a centering device for a heating gas pipeline of a coke oven basement, which comprises a supporting rod, an infrared emission pen, two nuts and a plurality of supporting rods, wherein the handles are rotatably sleeved on the supporting rod, the infrared emission pen is coaxially connected with one end of the supporting rod, the nuts are arranged up and down, the supporting rods are arranged at intervals along the circumferential direction of the supporting rod, the axes of the supporting rods and the supporting rod are arranged in parallel, the two nuts are sleeved at one end of the supporting rod far away from the infrared emission pen through a positive thread and a reverse thread respectively, each nut is hinged with each supporting rod through a connecting rod, and the infrared emission pen is used for emitting infrared light in the direction far away from the supporting rod.
In some alternative embodiments, the fixing sleeve is provided on the strut.
In some alternative embodiments, the stationary sleeve is coupled with at least one knob.
In some alternative embodiments, the stay is provided with at least one stop protruding away from the strut.
In some alternative embodiments, the stop block is provided at the end of the stay.
In some alternative embodiments, the grip is provided with a plurality of non-slip collars extending circumferentially therealong.
In some alternative embodiments, the post is fixedly sleeved with a blocking sleeve positioned between the positive and negative threads.
The beneficial effects of the application are as follows: the coke oven basement heating gas pipeline intersecting centering device provided by the embodiment comprises a supporting rod, an infrared emission pen, two nuts and a plurality of supporting rods, wherein the handles are rotatably sleeved on the supporting rod, the infrared emission pen is coaxially connected with one end of the supporting rod, the nuts are arranged up and down, the supporting rods are arranged along the circumferential direction of the supporting rod at intervals, the axes of the supporting rods and the supporting rod are arranged in parallel, the two nuts are sleeved on one end, far away from the infrared emission pen, of the supporting rod through positive threads and reverse threads respectively, each nut is hinged with each supporting rod through a connecting rod, and the infrared emission pen is used for emitting infrared light towards the direction far away from the supporting rod. The centering device for the coke oven basement heating gas pipeline intersecting provided by the embodiment has the advantages of simple structure and convenience in use, can accurately center and position pipelines, and can adapt to pipeline inner diameter positioning of pipelines of different specifications and pipeline operation in a narrow space.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a centering device for centering a heating gas pipeline of a coke oven basement, which is provided by an embodiment of the application, and is fixed at the bottom of a horizontal branch pipe;
fig. 2 is a schematic structural view of a centering device for intersecting a heating gas pipeline of a coke oven basement provided by an embodiment of the application.
In the figure: 100. a support rod; 110. a grip; 120. an infrared emission pen; 130. a nut; 140. a brace rod; 150. a connecting rod; 160. a fixed sleeve; 170. a rotary handle; 180. a limiting block; 190. an anti-slip collar; 200. a blocking sleeve; 300. a transverse calandria; 310. a horizontal branch pipe; 320. a gas pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The characteristics and properties of the coke oven basement heating gas conduit centering device of the present application are described in further detail below with reference to the examples.
As shown in fig. 1 and 2, the embodiment of the application provides a centering device for a heating gas pipeline of a coke oven basement, which comprises a support rod 100, a grip 110 rotatably sleeved in the middle of the support rod 100, an infrared emission pen 120, two nuts 130 vertically arranged and three support rods 140 circumferentially spaced along the support rod 100, wherein the support rods 140 and the axes of the support rod 100 are arranged in parallel, the outer wall of the upper end of the support rod 100 is respectively provided with a positive thread and a reverse thread with opposite directions, the two nuts 130 are respectively sleeved on the support rod 100 through the positive thread and the reverse thread, a blocking sleeve 200 positioned between the positive thread and the reverse thread is fixedly sleeved on the support rod 100, the infrared emission pen 120 is coaxially connected to the lower end of the support rod 100, each nut 130 is respectively hinged with each support rod 140 through a connecting rod 150, the infrared emission pen 120 is used for emitting infrared light in the direction far away from the support rod 100, the support rod 100 is fixedly sleeved with a fixing sleeve 160, two sides of the fixing sleeve 160 are respectively connected with a knob 170, the fixing sleeve 160 is positioned between the grip 110 and the infrared emission pen 120, one end of each support rod 140 is connected with a limiting block 180, and a five anti-slip ring 190 is axially arranged along the direction of the grip 190, and extends along the circumferential direction of the protrusion of the support rod 100.
When the centering device for heating gas pipes in a coke oven basement provided by the embodiment is used, an operator holds the handle 110 with a hand to insert the top of the supporting rod 100 into the horizontal branch pipe 310 connected with the horizontal pipe 300, limits the position of one supporting rod 140 connected with the top of the supporting rod 100, and enables the infrared emission pen 120 connected with the top of the supporting rod 100 to be arranged downwards, then holds the handle 110 with one hand by the operator, holds the knob 170 with the other hand and pushes the knob 170 to drive the fixing sleeve 160 and the supporting rod 100 to rotate, when the supporting rod 100 rotates, pushes the two nuts 130 sleeved on the supporting rod 100 through the positive threads and the reverse threads to move along the axial direction of the supporting rod 100, and as the two nuts 130 are sleeved on the supporting rod 100 through the positive threads and the reverse threads in opposite directions, when the supporting rod 100 rotates, two nuts 130 are driven to move along the supporting rod 100 towards directions close to each other or away from each other, at this time, an operator controls the infrared emission pen 120 to open the lower gas pipe 320 to emit infrared rays, so that the connecting rod 150 hinged with the two nuts 130 pushes the three supporting rods 140 to synchronously move along the direction away from the supporting rod 100 and press the inner wall of the horizontal branch pipe 310, the three supporting rods 140 and the supporting rod 100 connected with the three supporting rods are fixed on the inner wall of the horizontal branch pipe 310, the supporting rod 100 and the infrared emission pen 120 connected with the supporting rod are arranged coaxially with the horizontal branch pipe 310, and at this time, the operator controls the infrared emission pen 120 to open the lower gas pipe 320 to emit infrared rays, so as to position the top wall of the gas pipe 320 arranged below the horizontal branch pipe 310, so that subsequent construction can be conveniently performed.
After the positioning is finished, the user can reversely rotate the supporting rod 100 to drive the two nuts 130 to move along the supporting rod 100 towards the direction approaching to each other, so that the connecting rods 150 respectively hinged with the two nuts 130 push the three supporting rods 140 to synchronously move along the direction approaching to the supporting rod 100 to stop pressing the inner wall of the horizontal branch pipe 310, and the user can conveniently separate and take out the centering device for the heating gas pipeline of the coke oven basement from the inner wall of the horizontal branch pipe 310.
In addition, the rotating handle 170 connected with the side wall of the fixed sleeve 160 can be convenient for operators to hold and push the supporting rod 100 to rotate; one end of the bottom of each stay bar 140 is connected with a limiting block 180 protruding towards the direction far away from the stay bar 100, so that an operator can conveniently press the joint of the limiting block 180 and the stay bar 140 against the outer wall of the end part of the pipeline, and the operator can conveniently rotate the stay bar 100 to drive two nuts 130 to move towards the direction close to each other along the stay bar 100, so as to push three stay bars 140 to synchronously move towards the direction far away from the stay bar 100 and press the inner wall of the pipeline to fix and limit; five anti-slip convex rings 190 extending along the circumferential direction of the handle 110 are arranged on the handle 110, so that the handle 110 is ensured not to slip when an operator holds the handle 110 by hand, and the stable operation is ensured.
The embodiments described above are some, but not all embodiments of the application. The detailed description of the embodiments of the application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Claims (5)

1. The centering device is characterized by comprising a support rod, a handle, an infrared emission pen, two nuts and a plurality of support rods, wherein the handle is rotatably sleeved on the support rod, the infrared emission pen is coaxially connected with one end of the support rod, the two nuts are arranged up and down, the support rods are arranged at intervals along the circumferential direction of the support rod, the support rods and the axes of the support rod are arranged in parallel, the two nuts are respectively sleeved on one end, far away from the infrared emission pen, of the support rod through a positive thread and a reverse thread, each nut is hinged with each support rod through a connecting rod, and the infrared emission pen is used for emitting infrared light in the direction far away from the support rod; the stay bar is provided with at least one limiting block protruding towards the direction away from the supporting rod, and the limiting block is arranged at the end part of the stay bar.
2. The centering device for heating gas pipelines of coke oven basements according to claim 1, wherein a fixing sleeve is fixedly sleeved on the supporting rod.
3. The coke oven basement heating gas conduit centering device of claim 2, wherein the fixed sleeve is connected with at least one knob.
4. The centering device for heating gas pipes in a coke oven basement according to claim 1, wherein a plurality of anti-slip convex rings extending along the circumference of the grip are arranged on the grip.
5. The coke oven basement heating gas conduit centering device of claim 1, wherein the strut is fixedly sleeved with a blocking sleeve between the positive thread and the negative thread.
CN202111472144.3A 2021-12-06 2021-12-06 Centering device for coke oven basement heating gas pipeline Active CN114165641B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111472144.3A CN114165641B (en) 2021-12-06 2021-12-06 Centering device for coke oven basement heating gas pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111472144.3A CN114165641B (en) 2021-12-06 2021-12-06 Centering device for coke oven basement heating gas pipeline

Publications (2)

Publication Number Publication Date
CN114165641A CN114165641A (en) 2022-03-11
CN114165641B true CN114165641B (en) 2023-10-27

Family

ID=80483005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111472144.3A Active CN114165641B (en) 2021-12-06 2021-12-06 Centering device for coke oven basement heating gas pipeline

Country Status (1)

Country Link
CN (1) CN114165641B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943999A (en) * 2006-11-02 2007-04-11 上海交通大学 Branch pipe intersecting line laying out instrument
JP2010052121A (en) * 2008-08-29 2010-03-11 Chugoku Electric Power Co Inc:The Marking-off device
CN102723147A (en) * 2012-06-29 2012-10-10 上海电缆研究所 Multifunctional pay-off stand
CN106367085A (en) * 2016-08-31 2017-02-01 中国冶集团有限公司 Tool type modular installation and construction method of coke oven heating gas pipeline cock system
CN206072695U (en) * 2016-06-30 2017-04-05 上海市政工程设计研究总院(集团)有限公司 A kind of miniature electrical equipment support of movable expanding
CN206859672U (en) * 2017-06-26 2018-01-09 北京中润宝成工程技术有限公司 A kind of threading service sleeve locator
CN211641623U (en) * 2019-09-09 2020-10-09 北京市设备安装工程集团有限公司 Infrared three-way tapping and paying-off instrument
CN111824931A (en) * 2020-06-30 2020-10-27 中冶天工集团有限公司 Mounting tool for gas return pipeline of reheating coke oven and construction method thereof
CN212019507U (en) * 2020-02-19 2020-11-27 青岛海尔空调器有限总公司 Perforating device for air conditioner pipeline
CN112574762A (en) * 2020-11-24 2021-03-30 中国一冶集团有限公司 Device and method for controlling building verticality and center distance of coke oven tubular bricks
CN113714726A (en) * 2021-08-25 2021-11-30 中国一冶集团有限公司 Auxiliary device for installing steel pipe welding gasket

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943999A (en) * 2006-11-02 2007-04-11 上海交通大学 Branch pipe intersecting line laying out instrument
JP2010052121A (en) * 2008-08-29 2010-03-11 Chugoku Electric Power Co Inc:The Marking-off device
CN102723147A (en) * 2012-06-29 2012-10-10 上海电缆研究所 Multifunctional pay-off stand
CN206072695U (en) * 2016-06-30 2017-04-05 上海市政工程设计研究总院(集团)有限公司 A kind of miniature electrical equipment support of movable expanding
CN106367085A (en) * 2016-08-31 2017-02-01 中国冶集团有限公司 Tool type modular installation and construction method of coke oven heating gas pipeline cock system
CN206859672U (en) * 2017-06-26 2018-01-09 北京中润宝成工程技术有限公司 A kind of threading service sleeve locator
CN211641623U (en) * 2019-09-09 2020-10-09 北京市设备安装工程集团有限公司 Infrared three-way tapping and paying-off instrument
CN212019507U (en) * 2020-02-19 2020-11-27 青岛海尔空调器有限总公司 Perforating device for air conditioner pipeline
CN111824931A (en) * 2020-06-30 2020-10-27 中冶天工集团有限公司 Mounting tool for gas return pipeline of reheating coke oven and construction method thereof
CN112574762A (en) * 2020-11-24 2021-03-30 中国一冶集团有限公司 Device and method for controlling building verticality and center distance of coke oven tubular bricks
CN113714726A (en) * 2021-08-25 2021-11-30 中国一冶集团有限公司 Auxiliary device for installing steel pipe welding gasket

Also Published As

Publication number Publication date
CN114165641A (en) 2022-03-11

Similar Documents

Publication Publication Date Title
US6938313B2 (en) Portable plastic pipe cutter beveller system
CN105904148B (en) A kind of steel pipe circular weld mechanism
WO2020215459A1 (en) Easily adjustable pipeline cutting device
CN107738035A (en) The laser cutting machine that a kind of light-wall pipe for online tuber is cut
CN109261534A (en) A kind of assembly defective products detection device of roller mandrel
CN114165641B (en) Centering device for coke oven basement heating gas pipeline
CN204038677U (en) The passive unwinding device of simple and easy tensioner
CN210877885U (en) Burr removing device in square steel pipe orifice
CN211564983U (en) Rotating device for welding circular tube workpiece
CN208991898U (en) Bevel gear fixture
CN209061628U (en) A kind of assembly defective products detection device of roller mandrel
CN215825411U (en) Clamping mechanism for cutting plastic pipes
CN106608042B (en) Shrinkage attachment Rapid Expansion equipment and its expansion technique
CN211072465U (en) Welding device for furnace tube
CN213438059U (en) Straight seam steel pipe welding device
CN220862242U (en) Oil pipe thread cleaning device
CN219189204U (en) Stainless steel part welded pipe positioning device
CN216781021U (en) Fixing device is used in processing of circular tuber pipe
CN213410757U (en) Plasma cutting machine with locate function
CN206184937U (en) Automatic tubulation equipment
CN107838625A (en) One kind improves shape steel tube processed clip and holds device
CN108750968B (en) Frock is transported in welding of straight tube spare
CN220533407U (en) Fixing assembly for flat welding flange machining
CN207289470U (en) A kind of depth drill multi-angle clamp for mould processing
CN204135491U (en) A kind of pipe fitting internal and external threads synchronous processing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant