EP0041699A2 - Corps de nettoyage pour le nettoyage interne d'échangeurs de chaleur à tubes - Google Patents

Corps de nettoyage pour le nettoyage interne d'échangeurs de chaleur à tubes Download PDF

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Publication number
EP0041699A2
EP0041699A2 EP81104313A EP81104313A EP0041699A2 EP 0041699 A2 EP0041699 A2 EP 0041699A2 EP 81104313 A EP81104313 A EP 81104313A EP 81104313 A EP81104313 A EP 81104313A EP 0041699 A2 EP0041699 A2 EP 0041699A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
sponge rubber
bodies
heat exchangers
tubes
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.)
Withdrawn
Application number
EP81104313A
Other languages
German (de)
English (en)
Other versions
EP0041699A3 (en
Inventor
Klaus Eimer
Hans Werner Schildmann
Günther Schmitz
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.)
Taprogge GmbH
Original Assignee
Taprogge GmbH
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 Taprogge GmbH filed Critical Taprogge GmbH
Publication of EP0041699A2 publication Critical patent/EP0041699A2/fr
Publication of EP0041699A3 publication Critical patent/EP0041699A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0552—Spherically shaped pigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0553—Cylindrically shaped pigs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies

Definitions

  • the invention relates generically to a cleaning body for the internal cleaning of the tubes of tubular heat exchangers, in particular of steam power plant condensers, in circulating operation, with a sponge rubber element adapted to the tube diameter.
  • the tube diameter is z. B. in the range of 1o to 5o mm.
  • the sponge rubber element generally has open pores.
  • the term sponge rubber includes natural rubber and synthetic rubber.
  • the cleaning process in which such cleaning bodies are used is known in practice as the taprogge process.
  • the sponge rubber elements are balls. They usually wear an abrasive layer made of grains, e.g. 'B. Corundum grains.
  • the spherical shape is considered necessary so that the cleaning balls in the circulating mode described are distributed with sufficient uniform distribution over the large number of tubes of a tube heat exchanger, enter the tubes without interference and also pass through them without interference.
  • the spherical shape is considered necessary so that the cleaning bodies can be removed from the cleaning circuit again with the aid of sieving devices.
  • cylindrical cleaning bodies are also known in practice. These are cleaning brushes with a brush core and bristles projecting therefrom in the manner of a bottle cleaning brush, generally with end disks connected to the brush core. Such cleaning bodies are not suitable for circulating operation.
  • the invention has for its object to further develop the generic cleaning body so that a significantly increased cleaning effect can be achieved with each individual pass.
  • the sponge rubber element is designed as a sponge rubber cylinder with a length / diameter ratio in the range from 1.1 to 1.5.
  • the sponge rubber cylinder has, according to a preferred embodiment of the invention, rounded edges and convex, z. B. hemispherical end faces.
  • Within the scope of the invention is to provide the sponge rubber cylinder having an abrasive layer of grains and / or Kunststoffmonofilamentabêten, where c is the distribution thereof is suitably selected so that the abrasive layer does not form a deformation affecting shell, but rather is deformable with the sponge rubber cylinder.
  • the invention is based on the surprising fact that the cleaning bodies according to the invention, although they have a cylindrical shape, are distributed in the specified length / diameter range during cleaning operation with sufficient uniform distribution over all tubes of a tube heat exchanger to be cleaned and with the correct orientation, cylinder axis coaxial to the tube axis, the tubes pass. Surprisingly, there are also no blockages due to cleaning bodies which are, as it were, trapped in front of the tubes to be cleaned.
  • the cleaning body shown in the figures is intended for the internal cleaning of the tubes of tubular heat exchangers, in particular of steam power plant condensers, specifically for a cleaning process with recirculating operation.
  • the cleaning body has a sponge rubber element 1 adapted to the tube diameter.
  • the sponge rubber element is designed as a sponge rubber cylinder 1.
  • the length / diameter ratio L / D is in the range from 1.1 to 1.5.
  • the sponge rubber cylinder 1 is provided on its end faces 2 with rounded edges 3.
  • the end faces 2 themselves are convex, in the exemplary embodiment almost hemispherical, arched.
  • the sponge rubber cylinder 1 may have an abrasive layer made of grains and / or plastic monofilament sections 4. The distribution of these grains and / or plastic filament sections 4 is selected so that the deformability of the sponge rubber cylinder 1 is not impaired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP81104313A 1980-06-10 1981-06-04 Cleaning bodies for the internal cleaning of tube heat exchangers Withdrawn EP0041699A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3021699 1980-06-10
DE19803021699 DE3021699C2 (de) 1980-06-10 1980-06-10 Reinigungskörper für die Innenreinigung von Röhrenwärmetauschern

Publications (2)

Publication Number Publication Date
EP0041699A2 true EP0041699A2 (fr) 1981-12-16
EP0041699A3 EP0041699A3 (en) 1982-05-26

Family

ID=6104233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104313A Withdrawn EP0041699A3 (en) 1980-06-10 1981-06-04 Cleaning bodies for the internal cleaning of tube heat exchangers

Country Status (3)

Country Link
EP (1) EP0041699A3 (fr)
JP (1) JPS5726398A (fr)
DE (1) DE3021699C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542840A1 (fr) * 1990-08-10 1993-05-26 Compri Technic Pty. Ltd. Pistolet pneumatique ameliore et projectiles correspondants

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0689996B2 (ja) * 1985-01-31 1994-11-14 株式会社荏原製作所 チユ−ブ洗浄装置
FR2706801B1 (fr) * 1993-06-22 1995-10-20 Bizard Andre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204274A (en) * 1962-12-24 1965-09-07 Girard Harry J Pipe line plug device
US3403418A (en) * 1966-10-07 1968-10-01 Mary M. Knapp Pipeline pig or swipe
DE2059083A1 (de) * 1970-12-01 1972-06-22 Girard Harry J Geraet zum Reinigen von Rohrleitungen
DE2448608A1 (de) * 1974-10-11 1976-04-22 Oil States Rubber Co Rohrleitungsmolch
FR2343979A1 (fr) * 1976-03-13 1977-10-07 Kopp Ind Pipeline Service Procede et racleur pour le sechage des parois interieures des tuyaux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204274A (en) * 1962-12-24 1965-09-07 Girard Harry J Pipe line plug device
US3403418A (en) * 1966-10-07 1968-10-01 Mary M. Knapp Pipeline pig or swipe
DE2059083A1 (de) * 1970-12-01 1972-06-22 Girard Harry J Geraet zum Reinigen von Rohrleitungen
DE2448608A1 (de) * 1974-10-11 1976-04-22 Oil States Rubber Co Rohrleitungsmolch
FR2343979A1 (fr) * 1976-03-13 1977-10-07 Kopp Ind Pipeline Service Procede et racleur pour le sechage des parois interieures des tuyaux

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542840A1 (fr) * 1990-08-10 1993-05-26 Compri Technic Pty. Ltd. Pistolet pneumatique ameliore et projectiles correspondants
EP0542840A4 (en) * 1990-08-10 1993-11-03 Compri Technic Pty. Ltd. Improved pneumatic gun and projectiles therefor
US5555585A (en) * 1990-08-10 1996-09-17 Compri Technic Pty., Ltd. Pneumatic gun and projectiles therefor

Also Published As

Publication number Publication date
DE3021699C2 (de) 1982-10-14
JPS5726398A (en) 1982-02-12
EP0041699A3 (en) 1982-05-26
DE3021699A1 (de) 1982-01-28

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): FR GB IT

PUAL Search report despatched

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17P Request for examination filed

Effective date: 19820504

ITF It: translation for a ep patent filed

Owner name: RIT.TO ALL'OEB ALLO STATO DI DOMANDA;ING. C. GREGO

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19830621

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHMITZ, GUENTHER

Inventor name: SCHILDMANN, HANS WERNER

Inventor name: EIMER, KLAUS