EP0321570B1 - Druckluftpatrone - Google Patents

Druckluftpatrone Download PDF

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Publication number
EP0321570B1
EP0321570B1 EP88900259A EP88900259A EP0321570B1 EP 0321570 B1 EP0321570 B1 EP 0321570B1 EP 88900259 A EP88900259 A EP 88900259A EP 88900259 A EP88900259 A EP 88900259A EP 0321570 B1 EP0321570 B1 EP 0321570B1
Authority
EP
European Patent Office
Prior art keywords
piston
chamber
inlet chamber
compressed air
air
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.)
Expired - Lifetime
Application number
EP88900259A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0321570A4 (de
EP0321570A1 (de
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
Original Assignee
Makeevsky Inzhenerno Stroitelny Institut
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 filed Critical Makeevsky Inzhenerno Stroitelny Institut
Priority to AT88900259T priority Critical patent/ATE73695T1/de
Publication of EP0321570A1 publication Critical patent/EP0321570A1/de
Publication of EP0321570A4 publication Critical patent/EP0321570A4/de
Application granted granted Critical
Publication of EP0321570B1 publication Critical patent/EP0321570B1/de
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 from the air line, the air supply pipe and the inlet chamber into the atmosphere.
  • 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 made in the housing in the area of the inlet chamber and a safety valve at the outlet is connected to 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” (the 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 supplied from the compressed air source (not shown) a high pressure hose (not shown), the transition piece 21, the air supply pipe 6 and its holes 5 are fed to 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 moved to the inlet chamber 3 practically instantaneously, thereby practically clearing the through openings 20 through which the compressed air from the pressure chamber 4 explodes into the Environment escapes.
  • 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 annular 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)
  • Fluid-Driven Valves (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Radiation-Therapy Devices (AREA)
  • Safety Valves (AREA)
  • Nozzles (AREA)
  • Control Of Fluid Pressure (AREA)
  • Actuator (AREA)
EP88900259A 1987-06-23 1987-10-21 Druckluftpatrone Expired - Lifetime EP0321570B1 (de)

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 EP0321570A1 (de) 1989-06-28
EP0321570A4 EP0321570A4 (de) 1989-10-24
EP0321570B1 true EP0321570B1 (de) 1992-03-18

Family

ID=21311304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88900259A Expired - Lifetime EP0321570B1 (de) 1987-06-23 1987-10-21 Druckluftpatrone

Country Status (11)

Country Link
US (1) US4966326A (pl)
EP (1) EP0321570B1 (pl)
JP (1) JPH0738977B2 (pl)
CN (1) CN1010052B (pl)
BR (1) BR8707803A (pl)
CA (1) CA1296848C (pl)
DD (1) DD271063A5 (pl)
DE (1) DE3777659D1 (pl)
FI (1) FI890852A (pl)
IN (1) IN168927B (pl)
SU (1) SU1549622A1 (pl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL126150A0 (en) 1998-09-09 1999-05-09 Prowell Technologies Ltd Gas impulse device and method of use thereof
AU2009244603B2 (en) * 2008-05-06 2013-10-31 Graco Minnesota Inc. Cleaning fluid cartridge
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

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 (pl) * 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

Also Published As

Publication number Publication date
CN1010052B (zh) 1990-10-17
FI890852A0 (fi) 1989-02-22
US4966326A (en) 1990-10-30
EP0321570A4 (de) 1989-10-24
BR8707803A (pt) 1989-10-31
CA1296848C (en) 1992-03-10
DD271063A5 (de) 1989-08-23
IN168927B (pl) 1991-07-13
JPH0738977B2 (ja) 1995-05-01
EP0321570A1 (de) 1989-06-28
JPH01503767A (ja) 1989-12-21
CN1032851A (zh) 1989-05-10
FI890852A (fi) 1989-02-22
DE3777659D1 (de) 1992-04-23
SU1549622A1 (ru) 1990-03-15

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