EP1767890B1 - Marteau-pilon - Google Patents

Marteau-pilon Download PDF

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Publication number
EP1767890B1
EP1767890B1 EP06018931A EP06018931A EP1767890B1 EP 1767890 B1 EP1767890 B1 EP 1767890B1 EP 06018931 A EP06018931 A EP 06018931A EP 06018931 A EP06018931 A EP 06018931A EP 1767890 B1 EP1767890 B1 EP 1767890B1
Authority
EP
European Patent Office
Prior art keywords
hammer
additional weight
handle
joint
drop
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.)
Not-in-force
Application number
EP06018931A
Other languages
German (de)
English (en)
Other versions
EP1767890A1 (fr
Inventor
Jiri Dr. Jekerle
Volker Paruch
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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Filing date
Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1767890A1 publication Critical patent/EP1767890A1/fr
Application granted granted Critical
Publication of EP1767890B1 publication Critical patent/EP1767890B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00Cleaning by vibration or pressure waves

Definitions

  • the invention relates to a monkey rapier comprising the features of the preamble of claim 1.
  • a monkey rapper is off DE 35 00 431 A1
  • This knocking device is used for cleaning dust deposits on collecting electrodes and spray electrodes of dry-working electrostatic dust collectors.
  • the cleaning of the outer surfaces of heat exchanger tubes is often accomplished by using mechanical knocking devices operating on the principle of the drop hammer.
  • Such tapping devices usually consist of a series of drop hammers, each hitting an anvil or truncheon, which are connected to the pipes to be cleaned or at least in contact.
  • the occurring periodic and sudden loading of the drop hammer in particular its components hammer head, hammer handle and hammer joint, very often leads to damage to their high-stress points, especially on the hammer joint.
  • the object of this invention is now to provide a monkey rapper, on whose or their monkey the aforementioned disadvantages are avoided or whose mass distribution is arranged so low that in a stop on the anvil or the truncheon the load in the hammer joint against Zero goes and the tension in the hammer handle is minimized.
  • the additional weight attached to the hammer head is attached to its side facing or away from the hammer joint, since sufficient space for attaching an additional weight is present on these sides and the mass distribution can also be effectively made here.
  • the additional weight can also be attached to the hammer handle.
  • the additional weight is screwed or welded to the hammer head or to the hammer handle. While the first variant offers the possibility of an easier exchange, the second variant has the advantage of a more durable connection.
  • FIG. 2 shows a plurality of heat exchanger tube units 1, a single of which is shown in FIG. 1 is shown.
  • Such heat exchanger tube units 1 can be used for example as membrane tube walls or tube bundles in waste heat boiler.
  • waste heat boiler formed with heat exchanger tube units 1 on the outer surfaces of the heat exchanger tube units 1 ash or other deposits accumulates, the heat transfer with increasing accumulation on the heat exchanger tube units 1 and circulating in the tubes 2 working medium decreases, it becomes necessary to eliminate the ash accumulation.
  • the cleaning of ash can, as in FIG. 2 illustrated schematically, done by a monkey rapper 16.
  • a monkey rapper 16 by one of a drive means 7 driven and rotating shaft 6, which is held by at least two bearings 8, hammers 10 are raised and turned over or overturned.
  • hammers 10 When reaching the tilting position of the case 10 drops from the highest to the lowest position and beats or taps on the anvil or truncheon 4 of the respective tube unit 1.
  • the shaft 6 has according to theproofklopfenden tube units 1 a number of radial arms 9, the Distance between each other are rigidly connected to the shaft 6, each arm 9 is fixed substantially at right angles to the shaft 6 rigidly at her with successively increasing circumferential angle a, based on the preceding, adjacent arm 9.
  • FIG. 3 schematically on.
  • the anvil or truncheon 4 is, as well as in FIG. 1 illustrated, attached to the manifold 3 in communication with it, which receives all the heat exchanger tubes 2 a heat exchanger tube unit 1.
  • drive means 7 known drives such as electric motor, hydraulic, pneumatic etc. operated drives or gear can be used.
  • the falling movement of the drop hammer 10 is in principle a rotary movement.
  • the momentum of the drop hammer 10 when striking the anvil or striker 4 is equal to the sum of the momentum of the distributed mass ⁇ m i v i at the drop hammer 10, wherein the velocity of the individual mass particles depends on the radius of rotation of the individual mass particles or increments.
  • the impact force acts on the drop hammer 10 with a torque that would generally result in a different movement of the drop hammer 10 after the stop, as a (retrograde) rotation of the drop hammer 10 to the hammer joint 13.
  • FIGS. 4 to 6 Variants of the monkey rapper 16 according to the invention are illustrated, wherein the monkey 10 according to the FIG. 4 with an additional weight 14 is formed, which is attached to the hammer joint 13 remote from the side of the hammer head 11, whereas the monkey 10 according to the FIG. 5 is formed with an additional weight 14 which is attached to the hammer joint 13 facing side of the hammer head 11.
  • the drop hammer 10 according to the FIG. 6 is formed with an additional weight 14, which additionally has a more or overweight proportion 15. This overweight portion 15 of the drop hammer 10 is worked by milling or abrading or the like. Up to the state until the drop hammer 10 is formed with the additional weight according to the above relationship.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Incineration Of Waste (AREA)
  • Earth Drilling (AREA)

Claims (5)

  1. Dispositif de battage à marteau pilon, destiné à battre et secouer des tubes d'échangeur de chaleur (2) pour nettoyer leur surface extérieure, le dispositif présentant
    un arbre rotatif allongé (6) qui est maintenu par au moins 2 paliers,
    un moyen (7) de mise en rotation de l'arbre (6),
    plusieurs bras radiaux (9) reliés solidairement à l'arbre (6) à distance les uns des autres, chaque bras (9) étant fixé essentiellement perpendiculairement à l'arbre (6) et de manière rigide à un angle périphérique plus grand que celui de l'arbre (9) voisin qui précède,
    un marteau pilon (10) qui présente une tête de marteau (11) et un manche de marteau (12) et fixé à pivotement à l'extrémité extérieure de chaque bras radial (9) par une articulation de marteau (13),
    une enclume ou bras de percussion (4) fixée à un tube de collecte (3) d'une unité tubulaire (1) d'échangeur de chaleur ou en contact avec ce tube de collecte et contre laquelle l'extrémité exposée (5) du marteau pilon (10) vient frapper lors de la rotation de l'arbre (6),
    caractérisé en ce que
    pour réduire ou éliminer une force de rétropercussion dans l'articulation (13) du marteau pendant la percussion du marteau sur l'extrémité exposée (5) de l'enclume ou du manche de percussion (4), le marteau pilon (10) est configuré avec un poids supplémentaire (14) défini par l'équation : m Z = Σ m i r i - r A Σ m i r A - r Z
    Figure imgb0004

    dans laquelle
    mz représente la masse du poids supplémentaire (14), en kg,
    mi représente la masse d'une particule ou incrément de masse du manche de marteau (12) et de la tête de marteau (11), en kg,
    rz représente le rayon entre le centre de l'articulation (13) du marteau et le centre de masse du poids supplémentaire (14) en mètres,
    rA représente le rayon entre le centre de l'articulation (13) du marteau et la normale de percussion (Ns) de la tête (11) du marteau, en mètres, et
    ri représente le rayon entre le centre de l'articulation (13) du marteau et le centre de masse de la particule ou incrément de masse du manche (12) du marteau et de la tête (11) du marteau, en mètres.
  2. Dispositif de battage à marteau pilon selon la revendication 1, caractérisé en ce que le poids supplémentaire (14) est installé sur le côté de la tête (11) du marteau non tourné vers l'articulation (13) du marteau ou tourné vers cette dernière.
  3. Dispositif de battage à marteau pilon selon la revendication 1, caractérisé en ce que le poids supplémentaire (14) est placé sur le manche (12) du marteau.
  4. Dispositif de battage à marteau pilon selon l'une des revendications 1 à 3, caractérisé en ce que le poids supplémentaire (14) est vissé ou soudé sur la tête (11) du marteau ou sur le manche (12) du marteau.
  5. Dispositif de battage à marteau pilon selon l'une des revendications 1 à 3, caractérisé en ce que le poids supplémentaire (14) présente de plus une partie (15) formant une masse supplémentaire, obtenue par usinage mécanique permettant d'obtenir le poids supplémentaire (14).
EP06018931A 2005-09-23 2006-09-11 Marteau-pilon Not-in-force EP1767890B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005045633A DE102005045633B3 (de) 2005-09-23 2005-09-23 Fallhammer-Klopfvorrichtung

Publications (2)

Publication Number Publication Date
EP1767890A1 EP1767890A1 (fr) 2007-03-28
EP1767890B1 true EP1767890B1 (fr) 2011-09-07

Family

ID=37507794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06018931A Not-in-force EP1767890B1 (fr) 2005-09-23 2006-09-11 Marteau-pilon

Country Status (7)

Country Link
EP (1) EP1767890B1 (fr)
CN (1) CN1936489B (fr)
AT (1) ATE523750T1 (fr)
AU (1) AU2006222653B2 (fr)
DE (1) DE102005045633B3 (fr)
DK (1) DK1767890T3 (fr)
ES (1) ES2373235T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102327941B (zh) * 2011-10-10 2013-06-26 杜如虚 一种摆式冲压装置及方法
CN104384780B (zh) * 2013-08-19 2015-12-30 江苏绿叶锅炉有限公司 一种锅炉联箱用焊接工装
KR101451198B1 (ko) * 2013-12-05 2014-10-16 국도정밀(주) 열교환기용 타격장치
CN105921285A (zh) * 2016-06-21 2016-09-07 江苏云净环保设备有限公司 一种静电除尘机用振打锤
CN107816924B (zh) * 2017-10-26 2019-11-01 泉州市雅情机械科技有限公司 一种石油管道定点测厚装置
CN109084612A (zh) * 2018-11-05 2018-12-25 山东始源环境科技有限公司 空气预热器拆包全自动冲洗执行机构
CN111024760B (zh) * 2019-12-09 2023-03-17 西安近代化学研究所 一种火炸药撞击安全性评价装置和评价方法
CN111298971A (zh) * 2020-04-14 2020-06-19 山东蓝博环保设备有限公司 二维气流高效电除尘器
CN111790869B (zh) * 2020-06-08 2022-03-29 天长市振业建设工程有限公司 一种建筑工地撬棍制作用敲击装置
CN117443583A (zh) * 2023-12-08 2024-01-26 济南环陶环保工程有限公司 一种脱硫用湿式电除尘装置及其控制系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1574693A (en) * 1924-05-31 1926-02-23 Bettendorf Co Hammer
FI52147C (fi) * 1971-08-19 1977-06-10 Ahlstroem Oy Menetelmä ja laite höyrykattilan putkiston ulkopuolista puhdistusta va rten
GB1330612A (en) * 1972-02-18 1973-09-19 Smidth & Co As F L Electrostatic dust precipitator
DE3500431A1 (de) * 1985-01-09 1986-07-10 Metallgesellschaft Ag, 6000 Frankfurt Antriebseinrichtung fuer eine fallhammer-klopfvorrichtung
US4836146A (en) * 1988-05-19 1989-06-06 Shell Oil Company Controlling rapping cycle
DE3942759C1 (en) * 1989-12-23 1991-06-06 Oschatz Gmbh, 4300 Essen, De Cleaner for boiler ducts - has anvil impacted by hammer to transfer impact force onto wall
US5079459A (en) * 1991-01-23 1992-01-07 The Babcock & Wilcox Company Electro-hammer rapper
CA2087518C (fr) * 1993-01-18 1995-11-21 Serge Gamache Systeme de martelage pour chaudiere a tube
DE4302109C2 (de) * 1993-01-27 1999-01-07 Gutehoffnungshuette Man Wärmetauscher mit rauchgasumströmten Rohrwänden und zugeordneter Reinigungsvorrichtung sowie Verfahren zur Reinigung der Rohrwände
US5540275A (en) * 1995-03-17 1996-07-30 Foster Wheeler Energy Corporation Single impact rapping hammer system and method for cleaning tube units
JP2001280632A (ja) * 2000-03-31 2001-10-10 Sumitomo Heavy Ind Ltd 排ガスからの熱回収装置
CN2632619Y (zh) * 2003-08-08 2004-08-11 北京恩菲科技产业集团 弹性锤击式振打装置

Also Published As

Publication number Publication date
ES2373235T3 (es) 2012-02-01
EP1767890A1 (fr) 2007-03-28
CN1936489A (zh) 2007-03-28
AU2006222653B2 (en) 2010-06-10
ATE523750T1 (de) 2011-09-15
CN1936489B (zh) 2011-04-20
AU2006222653A1 (en) 2007-04-19
DK1767890T3 (da) 2012-01-02
DE102005045633B3 (de) 2007-05-16

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