EP0321570A1 - Pince de serrage pneumatique - Google Patents

Pince de serrage pneumatique Download PDF

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Publication number
EP0321570A1
EP0321570A1 EP88900259A EP88900259A EP0321570A1 EP 0321570 A1 EP0321570 A1 EP 0321570A1 EP 88900259 A EP88900259 A EP 88900259A EP 88900259 A EP88900259 A EP 88900259A EP 0321570 A1 EP0321570 A1 EP 0321570A1
Authority
EP
European Patent Office
Prior art keywords
piston
chamber
compressed air
inlet chamber
housing
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
EP88900259A
Other languages
German (de)
English (en)
Other versions
EP0321570B1 (fr
EP0321570A4 (fr
Inventor
Leonid Gedalievich Slez
Jury Ivanovich Tjurin
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.)
Makeevsky Inzhenerno Stroitelny Institut
MAKEEVSK INZH STR I
Original Assignee
Makeevsky Inzhenerno Stroitelny Institut
MAKEEVSK INZH STR I
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 Makeevsky Inzhenerno Stroitelny Institut, MAKEEVSK INZH STR I filed Critical Makeevsky Inzhenerno Stroitelny Institut
Priority to AT88900259T priority Critical patent/ATE73695T1/de
Publication of EP0321570A1 publication Critical patent/EP0321570A1/fr
Publication of EP0321570A4 publication Critical patent/EP0321570A4/fr
Application granted granted Critical
Publication of EP0321570B1 publication Critical patent/EP0321570B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • B08B9/0495—Nozzles propelled by fluid jets
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/906—Valves biased by fluid "springs"
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/13—Soot blowers and tube cleaners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86389—Programmer or timer
    • Y10T137/86405—Repeating cycle
    • Y10T137/86413—Self-cycling

Definitions

  • the present invention relates to the field of water supply and drainage and relates in particular to compressed air cartridges.
  • a compressed air cartridge is known (SU, A, 130454) which contains a housing which is divided into an inlet chamber and a pressure chamber by a piston guided along its longitudinal axis.
  • the inlet chamber is connected to the compressed air source via an air supply pipe that passes through an axial bore in the piston.
  • the pressure chamber is connected to the inlet chamber via an annular gap between the air supply pipe and the piston.
  • the pressure chamber communicates with the environment when it is emptied.
  • the compressed air flows from the compressed air source through the air supply pipe into the inlet chamber and, while exerting the pressure, presses the end face of the piston facing the chamber against the latter against the seat.
  • the compressed air flows into the pressure chamber through the annular gap between the air supply pipe and the piston.
  • a valve is used to actuate the known compressed air cartridge, with the aid of which the air line connected to the air supply pipe can be connected to the atmosphere.
  • the compressed air escapes into the atmosphere from the air line, the air supply pipe and the inlet chamber.
  • the pressure in the inlet chamber drops and under the effect of the pressure on the solid surface from the side of the pressure chamber, the piston moves to the side of the inlet chamber and thereby makes the through openings in the housing of the compressed air cartridge through which the compressed air escapes into the environment.
  • the present invention has for its object to develop a compressed air cartridge with such a design of the piston, which would allow the predetermined operating mode to be maintained automatically and to enable its control without interrupting the compressed air cartridge operation; to ensure the work in liquid media oversaturated with solid suspended matter, to guarantee the operational reliability and the simple construction of the compressed air cartridge as well as the Significantly reduce energy consumption.
  • the damper device advantageously contains an annular body in which a damper is arranged with a support ring which interacts with the housing in the region of the inlet chamber at the time the pressure chamber is emptied.
  • the additional chamber expediently occurs at the time of the emptying of the pressure chamber via at least one through-channel in the housing in the region of the inlet chamber, at the outlet of which a safety valve is provided is associated with the environment.
  • the compressed air cartridge designed according to the invention is used for cleaning industrial pipelines in which supersaturated liquids up to pulps are conveyed with solid suspended matter and is operated in a wide air pressure range with automatic control of the parameters of the pneumatic "explosion".
  • This compressed air cartridge has a simple and operational structure. It also guarantees the greatest possible force of the "explosion” (compressed air exhaust) and has the advantage of autonomous movement over the surface to be cleaned when cleaning the pipes.
  • the compressed air cartridge contains a housing 1 (see the accompanying drawing), which is divided into an inlet chamber 3 and a pressure chamber 4 by a piston 2 guided along its longitudinal axis.
  • the inlet chamber 3 is connected via holes 5 of an air supply pipe 6 to the compressed air source (not shown).
  • the air supply pipe 6 passes through an axial bore in the piston 2 and forms an annular gap 7 with the latter.
  • the inlet chamber 3 is connected to the pressure chamber 4 via the annular gap 7.
  • a ring extension 8 is embodied on the piston 2 and forms an additional chamber 9 on the side facing the inlet chamber 3.
  • the end face 10 of the piston 2 facing the pressure chamber 4 is larger than its end face 11 facing the inlet chamber 3 but smaller than the end face 12 of the ring extension 8 facing the pressure chamber 4.
  • the piston 2 is provided with a damper device which is accommodated within the ring extension 8 on the side facing the additional chamber 9.
  • the damper device contains an annular body 13 which is arranged screwed in the ring extension 8. In the annular body 13 there is a damper 14 with a support ring 15.
  • the damper 14 is made of an elastic material, for example polyurethane.
  • At least one through-channel 16 is implemented in the housing 1 in the area of the inlet chamber 3.
  • four through channels 16 are used.
  • a safety valve is arranged at the outlet of each through-channel 16.
  • the safety valve consists of a stopper 17, under which there is a ball 18, which is pressed by a spring 19 onto the outlet of the through-channel 16.
  • openings 20 are provided which run at an angle to the axis of the compressed air cartridge in order to enable its displacement during work.
  • a transition piece 21 is installed in the front end of the housing 1 on the compressed air supply side, which connects the compressed air cartridge to the compressed air source (not shown).
  • a ring 22 for fastening a rope (not shown) is attached to the transition piece 21, with the aid of which the compressed air cartridge is secured during operation and pulled out of the pipeline (not shown).
  • the compressed air cartridge works as follows.
  • the compressed air is from the compressed air source (not submit forms) via a high pressure hose (not shown), the transition piece 21, the air supply pipe 6 and its holes 5 of the inlet chamber 3.
  • the compressed air flows from the inlet chamber 3 through the annular gap 7 into the pressure chamber 4.
  • the piston 2 is pressed onto the end face 11 of the seat under the effect of the air pressure and thus covers the through openings 20.
  • the force of the air pressure on the end face 10 is greater than the force of the air pressure on the end face 11 by the value of the frictional force between the Piston 2 and the housing 1.
  • the piston 2 begins to move in the direction of the inlet chamber 3.
  • the air pressure will spread to the end face 12 of the ring shoulder 8 of the piston 2.
  • the force of the air pressure on the piston 2 from the side of the pressure chamber 4 rises sharply and the piston 2 is practically instantaneously moved to the inlet chamber 3, thereby practically clearing the through openings 20 through which the compressed air from the pressure chamber 4 explodes into the Environment escapes.
  • the impact of the piston 2 on the housing 1 in the area of the inlet chamber 3 is absorbed by the damper 14 via the support ring 15.
  • the damper 14 stores by being compressed; the state energy, which he then releases to the piston 2 in order to return it to the starting position.
  • the air pressure in the inlet chamber 3 increases only slightly when the piston 2 is lifted on its side, and as soon as the piston 2 stops, it quickly drops to pressure values in the air supply pipe 6.
  • the movement of the piston 2 to the pressure chamber 4 to cover the through openings 20 takes longer than the piston stroke to the inlet chamber 3 to clear these openings. This is explained by the fact that the release takes place under the effect of the air pressure on the end face 12 of the ring shoulder 8 of the piston 2, while the covering takes place under the effect of the air pressure on the substantially smaller end face 11 of the piston 2. Therefore, the pressure chamber 4 is able to empty itself almost completely within this time, which further increases the performance of the compressed air cartridge.
  • the air losses in the compressed air cartridge according to the invention are absent because it is not necessary to let the air out into the atmosphere in order to reduce the pressure in the inlet chamber in order to actuate the compressed air cartridge, as is the case with the prior art known to date.
  • the compressed air cartridge according to the invention can most suitably be used for cleaning industrial pipelines in which heavily contaminated liquids are conveyed up to pulps, as well as for loosening caked-up precipitation in settling tanks and settling tanks of cooling towers and for breaking solids.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Cleaning In General (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
  • Safety Valves (AREA)
  • Radiation-Therapy Devices (AREA)
  • Control Of Fluid Pressure (AREA)
  • Nozzles (AREA)

Abstract

Une pince de serrage pneumatique comporte un logement (1) divisé par un piston (2), orienté selon son axe longitudinal, en une chambre d'entrée (3) et une chambre de pompage (4). La chambre d'entrée (3) est reliée à une source d'air comprimé par une canalisation d'amenée d'air (6) qui passe à travers une ouverture axiale pratiquée dans le piston (2). La chambre de pompage (4) est reliée à la chambre d'entrée (3) par un espace annulaire (7) prévu entre la canalisation d'amenée d'air (6) et le piston (2). Lors de son évacuation, la chambre de pompage (4) est reliée à l'atmosphère. La superficie (10) de la section transversale du piston (2), en regard de la chambre de pompage (4), est plus grande que celle de l'extrémité (11) du piston (2), en regard de la chambre d'entrée (3), mais plus petite que celle de l'extrémité (12) d'une protubérance annulaire (8) sur le piston (2), en regard de la chambre de pompage (4). Une chambre supplémentaire (9) est créée du côté de la chambre d'entrée (3) par ladite protubérance et par le logement (1).
EP88900259A 1987-06-23 1987-10-21 Pince de serrage pneumatique Expired - Lifetime EP0321570B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88900259T ATE73695T1 (de) 1987-06-23 1987-10-21 Druckluftpatrone.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU874263106A SU1549622A1 (ru) 1987-06-23 1987-06-23 Устройство дл очистки внутренней поверхности трубопровода
SU4263106 1987-06-23

Publications (3)

Publication Number Publication Date
EP0321570A1 true EP0321570A1 (fr) 1989-06-28
EP0321570A4 EP0321570A4 (fr) 1989-10-24
EP0321570B1 EP0321570B1 (fr) 1992-03-18

Family

ID=21311304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88900259A Expired - Lifetime EP0321570B1 (fr) 1987-06-23 1987-10-21 Pince de serrage pneumatique

Country Status (11)

Country Link
US (1) US4966326A (fr)
EP (1) EP0321570B1 (fr)
JP (1) JPH0738977B2 (fr)
CN (1) CN1010052B (fr)
BR (1) BR8707803A (fr)
CA (1) CA1296848C (fr)
DD (1) DD271063A5 (fr)
DE (1) DE3777659D1 (fr)
FI (1) FI890852L (fr)
IN (1) IN168927B (fr)
SU (1) SU1549622A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2299099C2 (ru) * 2005-07-21 2007-05-20 Валерий Павлович Панченко Устройство для очистки внутренней поверхности трубопроводов

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2113287C1 (ru) * 1996-07-31 1998-06-20 Валерий Иванович Звегинцев Пневмоимпульсное устройство для очистки внутренней поверхности трубопроводов
RU2124952C1 (ru) * 1997-10-24 1999-01-20 Чиркашенко Владимир Федорович Пневмоимпульсное устройство для очистки внутренних поверхностей трубопроводов
IL126150A0 (en) 1998-09-09 1999-05-09 Prowell Technologies Ltd Gas impulse device and method of use thereof
RU2235608C1 (ru) * 2003-06-09 2004-09-10 Назаров Александр Геннадьевич Пневмоснаряд
RU2312718C1 (ru) * 2006-08-22 2007-12-20 Александр Геннадьевич Назаров Пневмоснаряд и способ очистки трубопроводов с его использованием
KR20110023853A (ko) * 2008-05-06 2011-03-08 그라코 미네소타 인크. 세척 유체 카트리지
IT1393219B1 (it) * 2009-03-02 2012-04-11 Botti Elio S A S Di Botti Elio & C Dispositivo per la manutenzione di condotti idrici, e relativo procedimento di manutenzione
FR2951260B1 (fr) * 2009-10-09 2011-12-23 Arts Machine de detartrage de corps alveolaires d'echangeur thermique air-eau
CN102794282B (zh) * 2012-08-31 2014-05-21 富威科技（吴江）有限公司 管材内壁清洗用等压充气密封接头装置
CN105927223A (zh) * 2016-06-24 2016-09-07 许连海 一种安全爆破系统
CN106733963B (zh) * 2016-12-05 2023-04-07 四川中匠科技有限公司 一种自溶解管道清理机器人
US12000227B1 (en) * 2023-01-03 2024-06-04 Saudi Arabian Oil Company Untethered near-wellbore stimulation
WO2025088227A1 (fr) * 2023-10-25 2025-05-01 Fadelpo, S.L. Dispositif d'émission d'impulsions soniques au moyen de la libération ultrarapide d'une chambre avec un gaz sous pression

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU130454A1 (ru) * 1959-02-25 1959-11-30 Д.И. Адамидзе Автоматический пневмопатрон
NL6906310A (fr) * 1968-05-08 1969-11-11
US3536263A (en) * 1968-07-31 1970-10-27 Halliburton Co Spray nozzle for cleaning the interior of tubing having interior deposits
US3814330A (en) * 1973-03-01 1974-06-04 Mcneil Corp Nozzle
SU1119633A1 (ru) * 1983-04-21 1984-10-23 Всесоюзное Научно-Производственное Объединение По Механизации Орошения "Радуга" Импульсный дождевальный аппарат

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Keine weitere Entgegenhaltungen. *
See also references of WO8810159A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2299099C2 (ru) * 2005-07-21 2007-05-20 Валерий Павлович Панченко Устройство для очистки внутренней поверхности трубопроводов

Also Published As

Publication number Publication date
US4966326A (en) 1990-10-30
JPH01503767A (ja) 1989-12-21
DD271063A5 (de) 1989-08-23
FI890852A0 (fi) 1989-02-22
CN1032851A (zh) 1989-05-10
FI890852A7 (fi) 1989-02-22
DE3777659D1 (de) 1992-04-23
BR8707803A (pt) 1989-10-31
CA1296848C (fr) 1992-03-10
JPH0738977B2 (ja) 1995-05-01
SU1549622A1 (ru) 1990-03-15
CN1010052B (zh) 1990-10-17
FI890852L (fi) 1989-02-22
IN168927B (fr) 1991-07-13
EP0321570B1 (fr) 1992-03-18
EP0321570A4 (fr) 1989-10-24

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