CN111946925A - Pipe penetrating device for elbow heat-preservation pipe - Google Patents

Pipe penetrating device for elbow heat-preservation pipe Download PDF

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Publication number
CN111946925A
CN111946925A CN202010816131.2A CN202010816131A CN111946925A CN 111946925 A CN111946925 A CN 111946925A CN 202010816131 A CN202010816131 A CN 202010816131A CN 111946925 A CN111946925 A CN 111946925A
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CN
China
Prior art keywords
bent pipe
pipe
steel
fixedly connected
return bend
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.)
Pending
Application number
CN202010816131.2A
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Chinese (zh)
Inventor
黄保东
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.)
Qingdao Huashida Machinery Co Ltd
Original Assignee
Qingdao Huashida Machinery 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 Qingdao Huashida Machinery Co Ltd filed Critical Qingdao Huashida Machinery Co Ltd
Priority to CN202010816131.2A priority Critical patent/CN111946925A/en
Publication of CN111946925A publication Critical patent/CN111946925A/en
Pending legal-status Critical Current

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    • 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
    • F16L43/00Bends; Siphons
    • F16L43/001Bends; Siphons made of metal
    • 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
    • F16L59/00Thermal insulation in general
    • F16L59/14Arrangements for the insulation of pipes or pipe systems
    • F16L59/16Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/22Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for bends
    • 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
    • F16L7/00Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention discloses a pipe penetrating device for an elbow heat-preservation pipe, which comprises a workbench surface and an outer protection bent pipe support, wherein the bottom of the workbench surface is fixedly connected with a support column, the upper end of the workbench surface is fixedly connected with a fixed seat, the upper end of the fixed seat is fixedly connected with a bent pipe placing tool, a steel bent pipe is placed inside the bent pipe placing tool, a support wood block is arranged on the outer side of the steel bent pipe, a fixed pipe is sleeved on the outer side of a rotary power shaft, the outer side of the fixed pipe is fixedly connected with a crank arm propeller, a stress plate is arranged on the crank arm propeller and fixedly connected with a fixed plate, and the fixed plate is fixedly arranged at the bottom of a pipeline. This elbow insulating tube poling device, rotatory power axle drive the pipeline locking device on the crank arm propeller through fixed pipe and promote the steel return bend and use rotatory power axle to carry out the precession as the center, stop after steel return bend and outer bent pipe structure coincide, accomplish the poling work between steel return bend and the outer bent pipe structure of protecting.

Description

Pipe penetrating device for elbow heat-preservation pipe
Technical Field
The invention relates to the technical field of prefabricated directly-buried insulating pipe production, in particular to a pipe penetrating device for an elbow insulating pipe.
Background
The prefabricated directly-buried heat insulation pipe is also called as a directly-buried heat insulation pipe and is mainly applied to a centralized heat supply system taking geothermal and low-temperature nuclear heat supply as a heat source in a town thermal power plant, a large-scale boiler room, a steam conveying system in an industrial park and a plant area, a regional centralized cooling system, a pipeline water conveying system in a high and cold area, a chemical process pipeline system, an oil and gas long-distance conveying pipeline system and the like; the high-temperature prefabricated direct-buried heat-insulation pipe is a direct-buried prefabricated heat-insulation pipe which has good heat-insulation performance, safety, reliability and low engineering cost, and effectively solves the problems of heat insulation, sliding lubrication and water prevention of an exposed pipe end of the prefabricated direct-buried heat-insulation pipe for heat transmission below 140 ℃ of central heating; the high-temperature prefabricated direct-buried heat insulation pipe adopts a direct-buried heat supply pipeline technology, and marks that the technical development of the Chinese heat supply pipeline has entered a new starting point; the heat preservation pipe consists of a steel pipe, a heat preservation layer and a polyethylene outer protection pipe, and the heat preservation layer is filled in a gap between the polyethylene outer protection pipe and the steel pipe; when the steel pipe got into polyethylene outer pillar and installation supporting shoe, at present, inserted the inside manual poling mode of adopting of manual work of the most inside of insulating tube with the steel pipe, not only extravagant manpower, reduced production efficiency simultaneously, greatly increased cost of labor has seriously influenced the efficiency of steel pipe poling to there is the problem that machining efficiency is low in the production process of making prefabricated direct-burried insulating tube.
In order to solve the defects existing in the market at present, an elbow insulation pipe penetrating device is provided to solve the problems.
Disclosure of Invention
The invention aims to overcome the defects in the background art and provides a pipe penetrating device for an elbow heat-insulating pipe. The rotary power shaft, the steel bent pipe and the outer protecting bent pipe structure are provided with a pipeline locking device which drives the crank arm propeller through the fixed pipe to push the steel bent pipe to precess by taking the rotary power shaft as the center until the steel bent pipe and the outer protecting bent pipe structure are superposed and then stop, and the pipe penetrating work between the steel bent pipe and the outer protecting bent pipe structure is completed; the mode of replacing manual pipe penetration, the characteristics of greatly reduced cost of labor.
In order to achieve the purpose, the invention provides the following technical scheme: a pipe penetrating device for an elbow heat-preservation pipe comprises a workbench surface and an outer protection bent pipe support, wherein the bottom of the workbench surface is fixedly connected with a support column, the upper end of the workbench surface is fixedly connected with a fixed seat, the upper end of the fixed seat is fixedly connected with a bent pipe placing tool, a steel bent pipe is placed inside the bent pipe placing tool, a support wood block is arranged on the outer side of the steel bent pipe, a fixed pipe is sleeved on the outer side of a rotary power shaft, the outer side of the fixed pipe is fixedly connected with a crank arm propeller, a stress plate is arranged on the crank arm propeller and fixedly connected with a fixed plate, the fixed plate is fixedly installed at the bottom of a pipeline locking device, and the pipeline locking device is fixedly connected with the;
outer protection return bend support fixed connection is on table surface, and is provided with outer protection return bend structure on the outer protection return bend support, and the arcwall face has been seted up to the outer side of outer protection return bend structure simultaneously, steel return bend tip and flange fixed connection.
Furthermore, the steel return bend outside is provided with protection architecture, and protection architecture comprises support billet and steel wire two parts, supports the billet simultaneously and is the rectangle setting, and protection architecture sets up to three groups in the outside of steel return bend.
Further, the support billet sets up to eight annular settings in the outside of steel return bend, and the angle between two sets of adjacent support billets is 45, and eight support billet insides all are pegged graft and are had the steel wire, and the steel wire sets up for concentric circles with the steel return bend.
Further, the bent pipe placing tool is internally provided with a groove, the size of the groove is larger than that of the steel bent pipe, and the steel bent pipe is placed in the groove through the supporting wood block on the steel bent pipe.
Further, the arcwall face that outer protection return bend is structural is unanimous with the radian that the steel return bend was buckled, and outer protection return bend structure's diameter is greater than the diameter of steel return bend, and the diameter of steel return bend equals four fifths of outer protection return bend structure diameter simultaneously, and rotatory power axle drives the pipeline locking device on the crank arm propeller through fixed pipe and promotes the steel return bend and use rotatory power axle to carry out the precession as the center, stops after steel return bend and outer protection return bend structure coincide, replaces artifical mode of wearing to manage, improves the efficiency that the steel pipe was worn to manage.
Furthermore, the outer protecting bent pipe supports are Y-shaped structures made of metal materials, two groups of the outer protecting bent pipe supports are arranged on the working table, and the outer protecting bent pipe structures are lapped on the two groups of the outer protecting bent pipe supports.
Furthermore, the fixed pipe is fixedly connected with the pipeline locking device through the crank arm propeller, the pipeline locking device is of a rotating structure with the rotating power shaft as the center of a circle, meanwhile, the pipeline locking device and the fixed plate are combined together to form an L shape, the rotating power shaft drives the pipeline locking device on the crank arm propeller through the fixed pipe to push the steel bent pipe to precess with the rotating power shaft as the center, and the steel bent pipe stops screwing until the steel bent pipe and the outer protection bent pipe structure coincide.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotating power shaft drives a pipeline locking device on the crank arm propeller to push the steel bent pipe to precess by taking the rotating power shaft as a center through the fixed pipe until the steel bent pipe is superposed with the outer protection bent pipe structure, and then the steel bent pipe stops penetrating the pipe between the steel bent pipe and the outer protection bent pipe structure; the mode of manual pipe penetration is replaced, the labor cost is greatly reduced, the efficiency of steel pipe penetration is improved, the structure is simple, and the realization is convenient;
2. the sliding blocks are fixedly mounted at the bottoms of the outer protecting bent pipe supports, the sliding rails are fixedly connected to the working table top, the two groups of outer protecting bent pipe supports are connected to the inside of the sliding rails through the sliding blocks on the two groups of outer protecting bent pipe supports in a sliding mode, the distance between the two groups of outer protecting bent pipe supports can be adjusted, and the outer protecting bent pipe supports can be automatically adjusted according to the curvature radius of the required outer protecting bent pipe supports.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a first side view of the structure of the present invention;
FIG. 3 is a second side view of the structure of the present invention;
FIG. 4 is a schematic cross-sectional view of a structural steel elbow of the present invention;
FIG. 5 is a top view of the present invention shown in FIG. 1;
fig. 6 is a schematic view of the connection structure of the pipeline locking device with the structure of the invention.
Reference numbers in the figures: 1. a work table; 2. a pipe locking device; 3. a crank arm propeller; 4. a steel bent pipe; 5. supporting the wood blocks; 6. rotating the power shaft; 7. a bent pipe placing tool; 8. an outer protecting bent pipe structure; 9. an outer protecting bent pipe bracket; 10. a groove; 11. a fixed seat; 12. a steel wire; 13. a fixed tube; 14. an arc-shaped surface; 15. a connecting flange; 16. a support pillar; 17. a stress plate; 18. and (7) fixing the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a pipe penetrating device for an elbow heat-preservation pipe comprises a workbench surface 1 and an outer protection bent pipe support 9, wherein the bottom of the workbench surface 1 is fixedly connected with a support column 16, the upper end of the workbench surface 1 is fixedly connected with a fixing seat 11, the upper end of the fixing seat 11 is fixedly connected with a bent pipe placing tool 7, a steel bent pipe 4 is placed inside the bent pipe placing tool 7, a support wood block 5 is arranged on the outer side of the steel bent pipe 4, a groove 10 is formed inside the bent pipe placing tool 7, the size of the groove 10 is larger than that of the steel bent pipe 4, and the steel bent pipe 4 is placed inside the groove 10 through the support wood block 5 on the steel bent pipe; a fixed pipe 13 is sleeved on the outer side of the rotary power shaft 6, the outer side of the fixed pipe 13 is fixedly connected with the crank arm propeller 3, meanwhile, a stress plate 17 is arranged on the crank arm propeller 3, the stress plate 17 is fixedly connected with a fixed plate 18, the fixed pipe 13 is fixedly connected with the pipeline locking device 2 through the crank arm propeller 3, the pipeline locking device 2 is of a rotating structure with the rotary power shaft 6 as a circle center, and meanwhile, the pipeline locking device 2 and the fixed plate 18 are combined together to form an L shape; the fixing plate 18 is fixedly arranged at the bottom of the pipeline locking device 2, and the pipeline locking device 2 is fixedly connected with the end part of the steel bent pipe 4; the outer side of the steel bent pipe 4 is provided with a protection structure, the protection structure is composed of two parts, namely a support wood block 5 and a steel wire 12, the support wood block 5 is arranged in a rectangular shape, and three groups of protection structures are arranged on the outer side of the steel bent pipe 4; the eight groups of supporting wood blocks 5 are annularly arranged on the outer side of the steel bent pipe 4, the angle between two adjacent groups of supporting wood blocks 5 is 45 degrees, steel wires 12 are inserted into the eight groups of supporting wood blocks 5, and the steel wires 12 and the steel bent pipe 4 are arranged in a concentric circle manner; the arc surface 14 on the outer protecting bent pipe structure 8 is consistent with the bending radian of the steel bent pipe 4, the diameter of the outer protecting bent pipe structure 8 is larger than that of the steel bent pipe 4, and meanwhile, the diameter of the steel bent pipe 4 is equal to four fifths of the diameter of the outer protecting bent pipe structure 8; the outer protecting bent pipe brackets 9 are Y-shaped structures made of metal materials, two groups of the outer protecting bent pipe brackets 9 are arranged on the working table surface 1, and meanwhile, the outer protecting bent pipe structures 8 are lapped on the two groups of the outer protecting bent pipe brackets 9; the outer protecting bent pipe bracket 9 is fixedly connected to the working table surface 1, an outer protecting bent pipe structure 8 is arranged on the outer protecting bent pipe bracket 9, an arc surface 14 is arranged on the outer side of the outer protecting bent pipe structure 8, and the end part of the steel bent pipe 4 is fixedly connected with a connecting flange 15;
as shown in fig. 1: the bottom of the outer protecting bent pipe bracket 9 is fixedly provided with a sliding block, the working table surface 1 is fixedly connected with a sliding rail, and the two groups of outer protecting bent pipe brackets 9 are both connected inside the sliding rail in a sliding way through the sliding blocks on the two groups of outer protecting bent pipe brackets 9, so that the distance between the two groups of outer protecting bent pipe brackets 9 can be adjusted, and the adjustment can be automatically carried out according to the required curvature radius of the outer protecting bent pipe brackets 9;
as shown in fig. 1-5: the rotating power shaft 6 drives the pipeline locking device 2 on the crank arm propeller 3 to push the steel bent pipe 4 to screw in by taking the rotating power shaft 6 as the center through the fixed pipe 13 until the steel bent pipe 4 is superposed with the outer protecting bent pipe structure 8 and then stops, and the pipe penetrating work between the steel bent pipe 4 and the outer protecting bent pipe structure 8 is completed; the mode of replacing artifical poling, greatly reduced cost of labor improves the efficiency of steel pipe poling, simple structure, the realization of being convenient for.
When the pipe penetrating device for the elbow heat-preservation pipe is used, firstly, a support wood block 5 is tied up on the outer surface of a steel bent pipe 4 through a steel wire 12 according to a certain distance, the tied-up steel bent pipe 4 is placed in a groove 10 formed in the interior of a bent pipe placing tool 7, a rotating power shaft 6 drives a crank arm propeller 3 to rotate, and when the crank arm propeller 3 approaches to the pipe end of the steel bent pipe 4; the pipeline locking device 2 is fastened at one end of the pipeline, the steel elbow 4 is locked by hydraulic or mechanical mode, the crank arm propeller 3 is composed of a plurality of steel pipes, the outer protecting elbow structure 8 is placed on the outer protecting elbow bracket 9 with the clamping groove, the outer protecting elbow structure 8 is automatically fixed on the outer protecting elbow bracket 9 according to the shape, at this time, starting an external switch of a speed reducing motor, driving a rotary power shaft 6 to rotate by an output shaft of the speed reducing motor, fixedly installing the speed reducing motor at the bottom of a working table top 1, not shown in the drawing, driving a pipeline locking device 2 on a crank arm propeller 3 by the rotary power shaft 6 through a fixed pipe 13 to push a steel bent pipe 4 to precess by taking the rotary power shaft 6 as the center, stopping the steel bent pipe 4 until the steel bent pipe 4 is superposed with an outer protecting bent pipe structure 8, and driving polyurethane into the space of the steel bent pipe 4 to foam and preserve heat after sealing two ends by flanges; the whole process of the elbow insulating pipe penetrating device is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an elbow insulating tube poling device, includes table surface (1) and outer bent pipe support (9), its characterized in that of protecting: the bottom of the working table top (1) is fixedly connected with a support column (16), a fixed seat (11) is fixedly connected to the upper end of the working table top (1), the upper end of the fixed seat (11) is fixedly connected with a bent pipe placing tool (7), a steel bent pipe (4) is placed inside the bent pipe placing tool (7), a support wood block (5) is arranged on the outer side of the steel bent pipe (4), a fixed pipe (13) is sleeved on the outer side of a rotary power shaft (6), the outer side of the fixed pipe (13) is fixedly connected with a crank arm propeller (3), a stress plate (17) is arranged on the crank arm propeller (3), the stress plate (17) is fixedly connected with a fixed plate (18), the fixed plate (18) is fixedly installed at the bottom of a pipeline locking device (2), and the pipeline locking device (2) is fixedly connected with the end of the bent pipe (4);
outer protection return bend support (9) fixed connection is on table surface (1), and is provided with outer protection return bend structure (8) on outer protection return bend support (9), and arcwall face (14) have been seted up in outer protection return bend structure (8) outside simultaneously, steel return bend (4) tip and flange (15) fixed connection.
2. The elbow insulation pipe penetration device according to claim 1, wherein: the steel return bend (4) outside is provided with protection architecture, and protection architecture comprises support billet (5) and steel wire (12) two parts, supports billet (5) and sets up for the rectangle simultaneously, and protection architecture sets up to three groups in the outside of steel return bend (4).
3. The elbow insulation pipe penetration device according to claim 1, wherein: the support wood blocks (5) are arranged into eight groups of annular structures and arranged on the outer side of the steel bent pipe (4), the angle between every two adjacent groups of support wood blocks (5) is 45 degrees, steel wires (12) are inserted into the eight groups of support wood blocks (5), and the steel wires (12) and the steel bent pipe (4) are arranged in a concentric circle mode.
4. The elbow insulation pipe penetration device according to claim 1, wherein: the bent pipe placing tool (7) is internally provided with a groove (10), the size of the groove (10) is larger than that of the steel bent pipe (4), and the steel bent pipe (4) is placed in the groove (10) through a support wood block (5) on the steel bent pipe.
5. The elbow insulation pipe penetration device according to claim 1, wherein: arc surface (14) on outer bent pipe structure (8) is unanimous with the radian that steel return bend (4) were buckled, and the diameter of outer bent pipe structure (8) is greater than the diameter of steel return bend (4), and the diameter of steel return bend (4) equals four fifths of outer bent pipe structure (8) diameter simultaneously.
6. The elbow insulation pipe penetration device according to claim 1, wherein: the outer protecting bent pipe support (9) is of a Y-shaped structure made of metal materials, the two groups of outer protecting bent pipe supports (9) are arranged on the working table top (1), and meanwhile, the outer protecting bent pipe structures (8) are connected to the two groups of outer protecting bent pipe supports (9) in an overlapping mode.
7. The elbow insulation pipe penetration device according to claim 1, wherein: the fixed pipe (13) is fixedly connected with the pipeline locking device (2) through the crank arm propeller (3), the pipeline locking device (2) is of a rotating structure taking the rotating power shaft (6) as the circle center, and meanwhile, the pipeline locking device (2) and the fixed plate (18) are combined together to form an L shape.
CN202010816131.2A 2020-08-14 2020-08-14 Pipe penetrating device for elbow heat-preservation pipe Pending CN111946925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010816131.2A CN111946925A (en) 2020-08-14 2020-08-14 Pipe penetrating device for elbow heat-preservation pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010816131.2A CN111946925A (en) 2020-08-14 2020-08-14 Pipe penetrating device for elbow heat-preservation pipe

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CN111946925A true CN111946925A (en) 2020-11-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117818077A (en) * 2024-03-04 2024-04-05 河北汇东管道股份有限公司 Pipe penetrating equipment and pipe penetrating method for heat preservation pipe elbow

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101463928A (en) * 2009-01-09 2009-06-24 吴发东 Processing method for external anti-corrosion layer of steel bend pipe
CN201306580Y (en) * 2008-12-05 2009-09-09 北京豪特耐管道设备有限公司 Steel outer protective polyurethane prefabricated insulating tube
CN101893153A (en) * 2010-07-07 2010-11-24 廊坊市管道人机械设备有限公司 Bend antiseptic finish processing device
JP2016070282A (en) * 2014-09-26 2016-05-09 積水化学工業株式会社 Bent pipe with resin heat insulator and its manufacturing process
CN108506596A (en) * 2018-03-14 2018-09-07 北京豪特耐管道设备有限公司 A kind of heat-insulating pipe fitting and processing method of built-in fiber
CN109109331A (en) * 2018-09-17 2019-01-01 山东茂盛管业有限公司 A kind of prefabricated direct-buried hot water thermal insulating bend pipe poling equipment of polyethylene and application method
CN208587636U (en) * 2018-07-30 2019-03-08 临沂红阳管业有限公司 Mould set steel keeps the temperature pipe bend
CN110861250A (en) * 2019-11-21 2020-03-06 上海宝冶集团有限公司 Foaming and heat-insulating method for low-temperature working condition refrigeration pipeline
CN210950254U (en) * 2019-09-30 2020-07-07 天津鑫宇通防腐保温工程有限公司 Resistance to compression direct-burried insulating tube

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201306580Y (en) * 2008-12-05 2009-09-09 北京豪特耐管道设备有限公司 Steel outer protective polyurethane prefabricated insulating tube
CN101463928A (en) * 2009-01-09 2009-06-24 吴发东 Processing method for external anti-corrosion layer of steel bend pipe
CN101893153A (en) * 2010-07-07 2010-11-24 廊坊市管道人机械设备有限公司 Bend antiseptic finish processing device
JP2016070282A (en) * 2014-09-26 2016-05-09 積水化学工業株式会社 Bent pipe with resin heat insulator and its manufacturing process
CN108506596A (en) * 2018-03-14 2018-09-07 北京豪特耐管道设备有限公司 A kind of heat-insulating pipe fitting and processing method of built-in fiber
CN208587636U (en) * 2018-07-30 2019-03-08 临沂红阳管业有限公司 Mould set steel keeps the temperature pipe bend
CN109109331A (en) * 2018-09-17 2019-01-01 山东茂盛管业有限公司 A kind of prefabricated direct-buried hot water thermal insulating bend pipe poling equipment of polyethylene and application method
CN210950254U (en) * 2019-09-30 2020-07-07 天津鑫宇通防腐保温工程有限公司 Resistance to compression direct-burried insulating tube
CN110861250A (en) * 2019-11-21 2020-03-06 上海宝冶集团有限公司 Foaming and heat-insulating method for low-temperature working condition refrigeration pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117818077A (en) * 2024-03-04 2024-04-05 河北汇东管道股份有限公司 Pipe penetrating equipment and pipe penetrating method for heat preservation pipe elbow
CN117818077B (en) * 2024-03-04 2024-04-30 河北汇东管道股份有限公司 Pipe penetrating equipment and pipe penetrating method for heat preservation pipe elbow

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Application publication date: 20201117

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