CN112901871A - Structure protection device for water supply pipeline flexible port - Google Patents

Structure protection device for water supply pipeline flexible port Download PDF

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Publication number
CN112901871A
CN112901871A CN202110102219.2A CN202110102219A CN112901871A CN 112901871 A CN112901871 A CN 112901871A CN 202110102219 A CN202110102219 A CN 202110102219A CN 112901871 A CN112901871 A CN 112901871A
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CN
China
Prior art keywords
connecting flange
flange
pipeline
compression ring
flexible
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.)
Granted
Application number
CN202110102219.2A
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Chinese (zh)
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CN112901871B (en
Inventor
阎凤寨
陈宝强
王景松
王磊
谢祥
于勇
张奎
杨臣
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.)
Tianjin Pipeline Engineering Group Co Ltd
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Tianjin Pipeline Engineering Group Co Ltd
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Priority to CN202110102219.2A priority Critical patent/CN112901871B/en
Publication of CN112901871A publication Critical patent/CN112901871A/en
Application granted granted Critical
Publication of CN112901871B publication Critical patent/CN112901871B/en
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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
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/10Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • 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
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00Friction-grip releasable fastenings
    • F16B2/02Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
    • 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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02Energy absorbers; Noise absorbers
    • 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
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The invention provides a structure protection device for a flexible port of a water supply pipeline, which comprises a first pipeline and a second pipeline which are butted, wherein a test valve and a flexible port are arranged between the first pipeline and the second pipeline; a first locking flange and a first connecting flange are sleeved on the first pipeline, and a plurality of flexible port protective belts are fixed between the first connecting flange and the second connecting flange; the expansion joints on the first connecting flange compression rings are uniformly distributed in the outer circumferential direction of the first connecting flange compression rings; and expansion joints on the second connecting flange clamping rings are uniformly distributed in the outer circumferential direction of the second connecting flange clamping rings. In the invention, the structure of the pressure-equalizing soft mouth of each soft mouth protective belt is not required, a better protective effect can be achieved as long as a certain number of soft mouth protective belts press the valve and the outer side of the soft mouth, the structure of the soft mouth is effectively reinforced by the soft mouth protective belts, the stability of the structure part of the soft mouth is improved, and the structure swing of the soft mouth in the test process is prevented.

Description

Structure protection device for water supply pipeline flexible port
Technical Field
The invention belongs to the technical field of pipeline test facilities, and particularly relates to a structure protection device for a water supply pipeline flexible opening.
Background
Soft mouth, also called flexible joint sometimes, when the pipeline lays in heterogeneous soil, can generally add a soft mouth at regular intervals, and the valve department of pipeline is not necessarily to set up soft mouth, but to when needing to compensate thermal expansion and cold contraction deformation or offset the influence of vibration, all need to install soft mouth in valve department usually, the installation of soft mouth on the pipeline and soft mouth and valve complex mounting means method are prior art content, though realize easily in the installation, in the prior art, the stability of soft mouth department structure is all difficult to guarantee usually. Especially to the test pipeline, the valve is installed between the first pipeline and the second pipeline of mutual butt joint with gentle mouthful of department, and the vibration and the deformation influence of gentle mouthful department if not adopting reasonable scheme to eliminate, then gentle mouthful of easy production irregular oscillation of department, and the vibration influence is great, not only probably causes the interference to the test result, and simultaneously, the stability and the security of pipeline also are difficult to guarantee, consequently, need improve.
Disclosure of Invention
In view of the above, the present invention provides a protection device for a structure at a flexible mouth of a water supply pipeline, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a structure protection device for a water supply pipeline flexible port comprises a first pipeline and a second pipeline which are in butt joint, wherein a test valve and a flexible port are arranged between the first pipeline and the second pipeline, and the test valve and the flexible port are structures of the flexible port; the first pipeline is sleeved with a first locking flange and a first connecting flange, and the first connecting flange is positioned on one side, close to the flexible opening, of the first locking flange; a compression ring is arranged on one side, facing the first locking flange, of the first connecting flange, a plurality of expansion joints are axially arranged on the compression ring, the first locking flange is sleeved on the compression ring of the first connecting flange, and the compression ring is locked through a fastening bolt between the first connecting flange and the first locking flange, so that the expansion joints of the first connecting flange are narrowed, and the compression ring is hooped on the outer wall of the first pipeline; the second pipeline is sleeved with a second locking flange and a second connecting flange, and the second connecting flange is positioned on one side, close to the flexible opening, of the second locking flange; a compression ring is arranged on one side, facing the second locking flange, of the second connecting flange, a plurality of expansion joints are axially arranged on the compression ring, the second locking flange is sleeved on the compression ring of the second connecting flange, and the compression ring is locked through fastening bolts between the second connecting flange and the second locking flange, so that the expansion joints of the second connecting flange are narrowed, and the compression ring is clamped on the outer wall of the second pipeline; a plurality of flexible port protective belts are fixed between the first connecting flange and the second connecting flange; the expansion joints on the first connecting flange compression rings are uniformly distributed in the outer circumferential direction of the first connecting flange compression rings; and expansion joints on the second connecting flange clamping rings are uniformly distributed in the outer circumferential direction of the second connecting flange clamping rings.
Furthermore, the flexible protective belt is made of a steel belt.
Furthermore, the two ends of the flexible protective belt are respectively welded and fixed on the first connecting flange and the second connecting flange.
Furthermore, each gentle mouthful of guard band equipartition sets up in the outer circumferencial direction of gentle mouthful.
Further, the fastening bolt is a full-thread bolt.
Furthermore, the inner wall of the compression ring of the first connecting flange is provided with anti-skid grains or bulges.
Furthermore, the inner wall of the compression ring of the second connecting flange is provided with anti-skid grains or bulges.
Furthermore, 5-8 connecting holes are uniformly distributed in the first connecting flange.
Furthermore, 5-8 connecting holes are uniformly distributed in the second connecting flange.
Compared with the prior art, the invention has the following advantages:
the flexible opening protective belt has the advantages that the structural design is reasonable, the two ends of the flexible opening protective belt are respectively fixed on the first connecting flange and the second connecting flange, the connection reliability is high, the flexible opening structure is effectively reinforced through the flexible opening protective belt, the stability of the flexible opening structure is improved, and the adverse effect of vibration at the flexible opening on a pipeline is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic perspective view of the first locking flange and the first connecting flange in a state of being engaged with each other according to the present invention;
FIG. 3 is a schematic structural view of an embodiment of the present invention with an auxiliary support frame;
fig. 4 is a schematic view of an auxiliary supporting frame in an embodiment of the present invention.
Description of reference numerals:
1-a first conduit; 2-a second conduit; 3-structure at the flexible opening; 4-a first locking flange; 5-a first connecting flange; 6-a compression ring; 7-fastening bolts; 8-a second locking flange; 9-a second connecting flange; 10-a flexible mouth protective belt; 11-an auxiliary support frame; 12-upper connecting flap; 13-lower connecting flap; 14-an upper connecting part; 15-lower connecting portion; 16-connecting bolts; 17-an adjustment ring; 18-a fixed seat; 19-an adjustment member; 20-a support ring; 21-extension arm.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A structure protection device for a water supply pipeline flexible opening is shown in figures 1 and 2 and comprises a first pipeline 1 and a second pipeline 2 which are in butt joint, wherein a test valve and a flexible opening (hereinafter referred to as a flexible opening structure) are arranged between the first pipeline and the second pipeline. The first pipeline is sleeved with a first locking flange 4 and a first connecting flange 5, and the first connecting flange is positioned on one side, close to the flexible opening structure 3, of the first locking flange; one side of the first connecting flange, which faces the first locking flange, is provided with a clamp ring 6, and the clamp ring is provided with a plurality of expansion joints along the axial direction.
The first locking flange is sleeved on the compression ring of the first connecting flange, and the compression ring is locked through the fastening bolt 7 between the first connecting flange and the first locking flange (the flange plate structure), so that the expansion joint of the first connecting flange is narrowed, and the compression ring is clamped on the outer wall of the first pipeline.
The second pipeline is sleeved with a second locking flange 8 and a second connecting flange 9, and the second connecting flange is positioned on one side, close to the structure at the flexible opening, of the second locking flange; one side of the second connecting flange, which faces the second locking flange, is provided with a clamp ring, the clamp ring is provided with a plurality of expansion joints along the axial direction, the second locking flange is sleeved on the clamp ring of the second connecting flange, and the clamp ring is locked by fastening bolts between the second connecting flange and the second locking flange (the flange plate structure), so that the expansion joints of the second connecting flange are narrowed and the clamp ring is hooped on the outer wall of the second pipeline.
A plurality of soft mouth protective belts 10 are fixed between the first connecting flange and the second connecting flange. Gentle mouthful of protective zone can consolidate gentle mouthful of department structure, can also absorb gentle mouthful of department vibration, reduces the influence that the gentle mouthful of department vibration of pipeline brought by a wide margin.
And 5-8 connecting holes are uniformly distributed on the first connecting flange. And 5-8 connecting holes are uniformly distributed on the second connecting flange. Correspondingly, the first locking flange and the second locking flange are correspondingly provided with the same number of connecting holes, so that the reliable connection and high stability are ensured.
The soft mouth protection belt is made of a steel belt. Usually, the gentle mouthful of protecting band both ends of aforesaid are welded fastening respectively in first flange and second flange, guarantee the reliability of connecting, when needs are dismantled, directly cut open gentle mouthful of protecting band (and flange and locking flange) can. Through the flange structural design of locking formula, be exactly avoid causing local stress to produce in the outside welding of pipeline, avoid causing the damage to the pipeline to influence pipeline safety.
Usually, each soft mouth protection belt is arranged uniformly in the outer circumferential direction of the soft mouth. The fastening bolt is a full-thread bolt. And the expansion joints on the first connecting flange compression rings are uniformly distributed in the outer circumferential direction of the first connecting flange compression rings. And expansion joints on the second connecting flange clamping rings are uniformly distributed in the outer circumferential direction of the second connecting flange clamping rings.
The inner wall of the compression ring of the first connecting flange is provided with anti-skid grains or bulges. And anti-skid grains or protrusions are arranged on the inner wall of the compression ring of the second connecting flange.
In an alternative embodiment, as shown in fig. 3 and 4, an auxiliary support frame 11 may be disposed on each side of the flexible mouth structure, and the auxiliary support frame includes an upper connecting flap 12 and a lower connecting flap 13, the upper connecting flap is provided with an upper connecting portion 14 on each side, the lower connecting flap is provided with a lower connecting portion 15 on each side, the upper connecting portion and the lower connecting portion are fixed by a connecting bolt 16, and both the upper connecting flap and the lower connecting flap are smaller than 1/2, i.e. there is a gap between the upper connecting flap and the lower connecting flap, and the upper connecting flap and the lower connecting flap are not in direct contact. In addition, a plurality of support rings 20 are respectively arranged on the upper connecting petal and the lower connecting petal, extension arms 21 are arranged corresponding to two sides of the support rings, and an adjusting ring 17 is arranged on one side of each extension arm facing the pipeline.
By way of example, the adjustment ring is mounted on a fixed mount 18, which is mounted on the extension arm via an adjustment member 19, typically a screw or bolt. The fixing base is driven to move towards one side close to the pipeline by screwing the adjusting piece, so that the soft mouth protective belt penetrating through the adjusting ring is tightened, and the protective effect of the soft mouth protective belt can be improved to the maximum extent. It should be noted that when adjusting the adjusting member on the test valve and the flexible mouth side, it is preferable to press the side flexible mouth protection belt against the structure on the test flexible mouth to improve the reinforcing effect.
When arranging gentle mouthful of protecting band, gentle mouthful of protecting band passes the adjusting ring of support ring one side, support ring and support ring opposite side in proper order, is convenient for utilize the regulating part to tighten the regulation operation to gentle mouthful of protecting band.
After the connecting bolt is screwed and fastened, the upper connecting flap and the lower connecting flap are close to each other, the supporting ring on the upper connecting flap and the lower connecting flap forms pulling to the flexible mouth protecting belt which is arranged in the supporting ring in a penetrating mode, the flexible mouth protecting belt is prevented from being loosened and suspended, and the protecting belt directly acts on the structure of the flexible mouth.
Generally, the upper connecting flap and the lower connecting flap are both arc-shaped structures, 3-5 auxiliary supporting frames are arranged on the upper connecting flap along the outer side surface of the connecting flap at intervals, and 3-5 auxiliary supporting frames are arranged on the lower connecting flap along the outer side surface of the connecting flap at intervals. It should be noted that, it is not necessary to make each soft mouth guard band pressure equalizing soft mouth department structure, and a better protection effect can be achieved as long as a certain number of soft mouth guard bands are ensured to press the valve and the outer side of the soft mouth.
The flexible opening protective belt has the advantages that the structural design is reasonable, the two ends of the flexible opening protective belt are respectively fixed on the first connecting flange and the second connecting flange, the connection reliability is high, the flexible opening structure is effectively reinforced through the flexible opening protective belt, the stability of the flexible opening structure is improved, and the adverse effect of vibration at the flexible opening on a pipeline is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a structure protector of gentle mouthful department of feed pipe which characterized in that: the test device comprises a first pipeline and a second pipeline which are butted, wherein a test valve and a flexible port are arranged between the first pipeline and the second pipeline;
the first pipeline is sleeved with a first locking flange and a first connecting flange, and the first connecting flange is positioned on one side, close to the flexible opening, of the first locking flange; a compression ring is arranged on one side, facing the first locking flange, of the first connecting flange, a plurality of expansion joints are axially arranged on the compression ring, and the expansion joints on the compression ring of each first connecting flange are uniformly distributed in the outer circumferential direction of the compression ring of the first connecting flange;
the first locking flange is sleeved on the compression ring of the first connecting flange, and the compression ring is locked through a fastening bolt between the first connecting flange and the first locking flange, so that the expansion joint of the first connecting flange is narrowed, and the compression ring is clamped on the outer wall of the first pipeline;
the second pipeline is sleeved with a second locking flange and a second connecting flange, and the second connecting flange is positioned on one side, close to the flexible opening, of the second locking flange; a compression ring is arranged on one side, facing the second locking flange, of the second connecting flange, a plurality of expansion joints are axially arranged on the compression ring, and the expansion joints on the compression ring of the second connecting flange are uniformly distributed in the direction of the outer circumference of the compression ring of the second connecting flange;
the second locking flange is sleeved on the compression ring of the second connecting flange, and the compression ring is locked through a fastening bolt between the second connecting flange and the second locking flange, so that the expansion joint of the second connecting flange is narrowed, and the compression ring is clamped on the outer wall of the second pipeline;
a plurality of flexible port protective belts are fixed between the first connecting flange and the second connecting flange; the fastening bolts are all full-thread bolts.
2. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 1, wherein: the flexible protective belt is made of a steel belt.
3. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 2, wherein: and two ends of the flexible port protection belt are respectively welded and fixed on the first connecting flange and the second connecting flange.
4. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 1, wherein: each gentle mouthful of protective zone equipartition sets up in the outer circumferencial direction of gentle mouthful.
5. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 1, wherein: and anti-skid grains or protrusions are arranged on the inner wall of the compression ring of the second connecting flange.
6. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 1, wherein: and 5-8 connecting holes are uniformly distributed on the first connecting flange.
7. A structural protector at a flexible mouth of a water supply pipe as claimed in claim 1, wherein: and 5-8 connecting holes are uniformly distributed on the second connecting flange.
CN202110102219.2A 2021-01-26 2021-01-26 Structure protection device for water supply pipeline flexible port Active CN112901871B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110102219.2A CN112901871B (en) 2021-01-26 2021-01-26 Structure protection device for water supply pipeline flexible port

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Application Number Priority Date Filing Date Title
CN202110102219.2A CN112901871B (en) 2021-01-26 2021-01-26 Structure protection device for water supply pipeline flexible port

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CN112901871A true CN112901871A (en) 2021-06-04
CN112901871B CN112901871B (en) 2022-09-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113639138A (en) * 2021-07-21 2021-11-12 上海外高桥造船有限公司 Expansion joint protection device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2694085Y (en) * 2004-03-30 2005-04-20 宝钢集团上海第一钢铁有限公司 Limit type flexible pipe telescopic section
EP1686305A1 (en) * 2005-01-28 2006-08-02 STENFLEX Rudolf Stender GmbH Device for compensating the relative movement of two pipes that are to be connected in a pressure-tight way
CN206093291U (en) * 2016-09-26 2017-04-12 桃江新兴管件有限责任公司 Pipeline flexibility interface
CN206377371U (en) * 2017-01-04 2017-08-04 杭州彰钰不锈钢有限公司 A kind of flange connecting hose
CN107477283A (en) * 2016-06-07 2017-12-15 阿博拉股份公司 Pipe joint with vibration compensation device
CN108561669A (en) * 2018-03-09 2018-09-21 中国人民解放军海军工程大学 Elastic back cavity type pipeline vibration-damping sound-damping device
CN207935583U (en) * 2017-12-27 2018-10-02 中广核研究院有限公司 pipeline flexible connection structure
CN109323073A (en) * 2018-12-07 2019-02-12 徐州华阳饲料有限公司 A kind of pipeline flexible threeway and installation method
CN210218985U (en) * 2019-03-18 2020-03-31 天津市鑫塘达阀门有限公司 Rubber soft joint

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2694085Y (en) * 2004-03-30 2005-04-20 宝钢集团上海第一钢铁有限公司 Limit type flexible pipe telescopic section
EP1686305A1 (en) * 2005-01-28 2006-08-02 STENFLEX Rudolf Stender GmbH Device for compensating the relative movement of two pipes that are to be connected in a pressure-tight way
CN107477283A (en) * 2016-06-07 2017-12-15 阿博拉股份公司 Pipe joint with vibration compensation device
CN206093291U (en) * 2016-09-26 2017-04-12 桃江新兴管件有限责任公司 Pipeline flexibility interface
CN206377371U (en) * 2017-01-04 2017-08-04 杭州彰钰不锈钢有限公司 A kind of flange connecting hose
CN207935583U (en) * 2017-12-27 2018-10-02 中广核研究院有限公司 pipeline flexible connection structure
CN108561669A (en) * 2018-03-09 2018-09-21 中国人民解放军海军工程大学 Elastic back cavity type pipeline vibration-damping sound-damping device
CN109323073A (en) * 2018-12-07 2019-02-12 徐州华阳饲料有限公司 A kind of pipeline flexible threeway and installation method
CN210218985U (en) * 2019-03-18 2020-03-31 天津市鑫塘达阀门有限公司 Rubber soft joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113639138A (en) * 2021-07-21 2021-11-12 上海外高桥造船有限公司 Expansion joint protection device

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