WO2022252358A1 - Absorbeur de chocs à deux étages à revêtement complet - Google Patents

Absorbeur de chocs à deux étages à revêtement complet Download PDF

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Publication number
WO2022252358A1
WO2022252358A1 PCT/CN2021/106712 CN2021106712W WO2022252358A1 WO 2022252358 A1 WO2022252358 A1 WO 2022252358A1 CN 2021106712 W CN2021106712 W CN 2021106712W WO 2022252358 A1 WO2022252358 A1 WO 2022252358A1
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WO
WIPO (PCT)
Prior art keywords
pipe clamp
vibration isolation
rubber layer
shock absorber
stage shock
Prior art date
Application number
PCT/CN2021/106712
Other languages
English (en)
Chinese (zh)
Inventor
夏栓
张玉
武心壮
邱健
董世昕
陈星文
蔡友强
施永兵
黄若涛
卢强
张翔云
尹延喜
詹敏明
Original Assignee
上海核工程研究设计院有限公司
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 上海核工程研究设计院有限公司 filed Critical 上海核工程研究设计院有限公司
Publication of WO2022252358A1 publication Critical patent/WO2022252358A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
    • F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/035—Noise absorbers in the form of specially adapted hangers or supports

Definitions

  • the invention relates to the technical field of pipeline vibration isolation devices, in particular to a full-covered double-stage shock absorber.
  • Vibration problems are ubiquitous in ship process piping systems, such as pipeline vibration caused by fluid excitation, piping vibration caused by equipment rotation vibration, and pipeline resonance caused by fluid-solid-acoustic coupling. Vibration is very harmful to pipelines and equipment. If it is small, it will generate noise and affect the working environment of nuclear power plant personnel. If it is large, it will cause damage to pipelines and equipment and personal injury, and even cause major accidents that threaten the safety of nuclear power facilities.
  • Shock absorbers can effectively reduce and solve vibration problems in process pipelines, and improve the safety, economy and reliability of nuclear power plants.
  • Traditional rubber shock absorbers or rubber vibration-isolating pipe clamps are usually filled with rubber in whole or in part between the shock absorber and process system components to reduce vibration transmission through different damping characteristics.
  • the purpose of the present invention is to overcome the deficiencies of the prior art, and adopt a two-stage combined vibration isolation and fully clad structure to effectively resist metal corrosion under marine environmental conditions and improve component life.
  • a vulcanized pipe clamp assembly comprising,
  • the upper half clamp which includes an upper lining rubber layer and an upper pipe clamp for sequentially covering the upper half of the outer wall of the tubular part;
  • the lower half clamp includes a lower lining rubber layer and a lower pipe clamp for sequentially covering the outer wall of the lower half of the tubular part;
  • the pipe clamp is connected with a fastener, which fixes the upper pipe clamp and the lower pipe clamp, and the upper pipe clamp and the lower pipe clamp completely cover the upper lining rubber layer and the lower lining rubber layer;
  • Rubber blocks for vibration isolation which are symmetrically arranged on the left and right sides of the bottom surface of the lower pipe clamp;
  • the support seat adopts a V-shaped structure with two surfaces, one of which is an oblique rubber block support surface fixedly connected to the bottom surface of the rubber block for vibration isolation, and the other surface is a mounting surface for integral fixing;
  • the upper pipe clamp, the lower pipe clamp, and the support seat are metal parts coated with rubber on the outside; the upper inner rubber layer, the lower inner rubber layer, the upper pipe clamp, the lower pipe clamp, the rubber block for vibration isolation,
  • the support bases are all treated with vulcanization; the connecting fasteners of the pipe clamps and their installation places are respectively coated with epoxy resin anti-corrosion coating.
  • the upper lining rubber layer and the upper pipe clip are vulcanized as an integrated structure
  • the rubber block for vibration isolation, the support seat and the lower half of the clamp are vulcanized as an integrated structure.
  • the upper lining rubber layer and the lower lining rubber layer are respectively semicircular arc-shaped.
  • the inner wall of the upper lining rubber layer and the inner wall of the lower lining rubber layer are respectively distributed with several tooth grooves uniformly along the circumference, and each tooth groove is arranged along the axial direction.
  • the rubber block for vibration isolation is provided with a vibration isolation hole in the axial direction near the bottom surface.
  • vibration isolation hole is rectangular.
  • the waists on both sides of the cross section of the rubber block for vibration isolation are arc-shaped.
  • vulcanized support ribs are also provided between the rubber block support surface and the installation surface of the support seat.
  • it also includes an installation base plate, the installation surface of the support base is fixedly connected with the installation base plate using installation connection fasteners, and the installation connection fasteners and their installation places are respectively coated with epoxy resin anti-corrosion coating.
  • the metal parts include stainless steel.
  • the present invention adopts a fully clad structure and a two-stage vibration isolation structure, which can not only achieve better vibration isolation effect, reduce space occupation, reduce component weight, but also improve anti-corrosion insulation effect and component service life; It has good application prospects in ship systems, and can also be extended to nuclear power, petroleum, chemical and other industries. Specifically, it has the following advantages:
  • the vulcanized one-piece compact design eliminates intermediate connecting parts and connecting fasteners, reduces space occupation, reduces component weight, and reduces component material costs;
  • the fully-wrapped design makes the components better resist metal corrosion in the marine environment and prolongs the service life of the components
  • Fig. 1 is a structural schematic diagram of the present invention.
  • Fig. 2 is a left side view of the upper half clamp shown in Fig. 1 .
  • Fig. 3 is a left side view of the assembled lower half clamp, low-frequency vibration isolation assembly and mounting base shown in Fig. 1 .
  • a full-covered two-stage shock absorber in the present invention is characterized in that it includes: - the first-stage vulcanized pipe clamp assembly, which includes,
  • the upper half clamp which includes an upper lining rubber layer 1 and an upper pipe clamp 3 for sequentially covering the outer wall of the upper half of the tubular part 11;
  • the lower half clamp which includes a lower lining rubber layer 5 and a lower pipe clamp 4 for sequentially covering the outer wall of the lower half of the tubular part 11;
  • Pipe clip connecting fastener 2 which fixes the upper pipe clip 3 and the lower pipe clip 4, and the upper pipe clip 3 and the lower pipe clip 4 completely cover the upper lining rubber layer 1 and the lower lining rubber layer 5 inside;
  • the solid rubber structure was discarded, and the upper and lower lining rubber layers are both annular groove structures, that is, the inner wall of the upper lining rubber layer 1,
  • the inner wall of the lower lining rubber layer 5 is evenly distributed along the circumference with a number of tooth grooves 1-5, each tooth groove 1-5 is arranged axially, and the shape of the tooth grooves can be square or arc-shaped.
  • the design of slots 1-5 not only reduces the intermediate mass, but also achieves a good vibration isolation effect. In order to improve the vibration isolation capability and ensure the deformation requirements of the pipeline under load, the corresponding requirements can be achieved by optimizing the structure, number and depth of the slots 1-5;
  • the rubber block 6 for vibration isolation is symmetrically arranged on the left and right sides of the bottom surface of the lower pipe clamp 4, and the two rubber blocks 6 for vibration isolation on the left and right approximately form a "eight" shape;
  • the waists on both sides of the cross-section are arc-shaped, and there are rectangular vibration isolation holes 6-1 along the axial direction near the bottom surface; here, the vibration isolation holes 6-1 play a further role in releasing pressure and buffering;
  • the support seat 7 adopts a V-shaped structure with two surfaces, one of which is an oblique rubber block support surface 7-1 fixedly connected to the bottom surface of the vibration isolation rubber block 6, and the other surface is an installation for overall fixing. surface 7-2; and between the rubber block support surface 7-1 and the installation surface 7-2, there is also a vulcanized support rib 8 to enhance the supporting load-bearing performance and improve the load of the overall component;
  • the upper pipe clamp 3, the lower pipe clamp 4, and the support seat 7 respectively adopt metal parts coated with rubber on the outside, where the metal parts can be made of metal materials such as stainless steel; the upper inner rubber layer 1 and the lower inner rubber layer 5 , upper tube clamp 3, lower tube clamp 4, rubber block for vibration isolation 6, support seat 7, and support rib plate 8.
  • the above components are all molded and fully vulcanized first, and then the upper lining rubber layer 1 and the upper tube clamp 3 are vulcanized One-piece structure; the rubber block 6 for vibration isolation, the support seat 7, the support rib plate 8 and the lower half clamp are vulcanized into one structure to minimize bolt connections; the pipe clamp is connected to the fastener 2 and its installation place Each is coated with epoxy resin anti-corrosion coating to ensure the integrity and reliability of the package.
  • the installation surface 7-2 of the support seat 7 is fixedly connected with the installation base plate 10 by using an installation connection fastener 9, and the installation connection fastener 9 and its installation place are respectively coated with Epoxy resin anti-corrosion coating.
  • the installation base plate 10 and the installation surface 7-2 of the support seat 7 can also be welded together. After the installation base plate 10 and the support seat 7 are assembled, they can be vulcanized together with the low-frequency vibration isolation component and the lower half clamp vulcanization.
  • the present invention Compared with conventional rubber shock absorbers or rubber vibration-isolating tube clamps, the present invention has one more level of vibration isolation, which can achieve better vibration isolation effects, reduce space occupation, reduce component weight, and achieve better anti-corrosion through the fully-wrapped structure
  • the insulation effect improves the service life of components, and has a good application prospect in ship systems, and can also be extended to nuclear power, petroleum, chemical and other industries.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

La présente invention se rapporte au domaine technique des dispositifs d'isolation de vibrations de tuyau, et concerne en particulier un absorbeur de chocs à deux étages à revêtement complet, qui comprend un ensemble de brides de serrage vulcanisé de premier étage qui fixe une bride de serrage supérieure et une bride de serrage inférieure au moyen d'un élément de fixation de raccordement de brides de serrage de façon à appliquer une couche de caoutchouc de revêtement supérieure et une couche de caoutchouc de revêtement inférieure à l'intérieur de celles-ci ; et qui comprend aussi des blocs de caoutchouc pour l'isolation des vibrations qui sont agencés symétriquement sur les côtés gauche et droit d'une surface inférieure de la bride de serrage inférieure ; et un ensemble d'isolation de vibrations basse fréquence de deuxième étage qui est composé d'un siège de support en forme de V et qui est fixé aux surfaces inférieures des blocs de caoutchouc pour l'isolation des vibrations, l'élément de fixation de raccordement de brides de serrage et la position de montage de celui-ci étant chacun revêtus de revêtements anticorrosion en résine époxy, et le reste étant soumis à un traitement de vulcanisation. Par rapport à la technologie existante, une structure à revêtement complet et une structure d'isolation des vibrations à deux étages sont utilisées dans la présente invention, de sorte qu'un meilleur effet d'isolation des vibrations puisse être obtenu, que l'espace occupé soit réduit, et que le poids des composants soit réduit, et l'effet anticorrosion et d'isolation est également amélioré, et la durée de vie de composants est prolongée ; de plus, la présente invention présente de bonnes perspectives d'application dans un système de navire, et peut également être popularisée dans l'ingénierie de l'énergie nucléaire, pétrolière et chimique et dans d'autres industries.
PCT/CN2021/106712 2021-06-01 2021-07-16 Absorbeur de chocs à deux étages à revêtement complet WO2022252358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110608236.3 2021-06-01
CN202110608236.3A CN113389945A (zh) 2021-06-01 2021-06-01 一种全包覆式双级减震器

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WO2022252358A1 true WO2022252358A1 (fr) 2022-12-08

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106900A1 (fr) * 1999-11-30 2001-06-13 J. van Walraven B.V. Ensemble collier de serrage anti-vibratoire
CN102620105A (zh) * 2012-04-10 2012-08-01 武汉第二船舶设计研究所 一体式卡箍隔振器
CN208041324U (zh) * 2018-04-13 2018-11-02 株洲时代新材料科技股份有限公司 分体式双层管路马脚隔振装置
CN109654300A (zh) * 2018-12-28 2019-04-19 武汉船舶设计研究院有限公司 船舶管路系统的弹性支撑隔振装置
CN110985806A (zh) * 2019-12-25 2020-04-10 武汉船舶设计研究院有限公司 一种新型全包裹双层弹性马脚隔振装置
CN112833252A (zh) * 2020-12-31 2021-05-25 武汉船舶设计研究院有限公司 大载荷、低频、高阻尼管路支撑隔振装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111653990B (zh) * 2020-06-19 2021-05-18 安徽精工电缆桥架有限公司 一种基于热镀锌双金属环氧树脂防腐涂层的电缆桥架

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106900A1 (fr) * 1999-11-30 2001-06-13 J. van Walraven B.V. Ensemble collier de serrage anti-vibratoire
CN102620105A (zh) * 2012-04-10 2012-08-01 武汉第二船舶设计研究所 一体式卡箍隔振器
CN208041324U (zh) * 2018-04-13 2018-11-02 株洲时代新材料科技股份有限公司 分体式双层管路马脚隔振装置
CN109654300A (zh) * 2018-12-28 2019-04-19 武汉船舶设计研究院有限公司 船舶管路系统的弹性支撑隔振装置
CN110985806A (zh) * 2019-12-25 2020-04-10 武汉船舶设计研究院有限公司 一种新型全包裹双层弹性马脚隔振装置
CN112833252A (zh) * 2020-12-31 2021-05-25 武汉船舶设计研究院有限公司 大载荷、低频、高阻尼管路支撑隔振装置

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