EP0321570B1 - Druckluftpatrone - Google Patents

Druckluftpatrone Download PDF

Info

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

Links

Images

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)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
  • Nozzles (AREA)
  • Control Of Fluid Pressure (AREA)
  • Safety Valves (AREA)
  • Actuator (AREA)
  • Radiation-Therapy Devices (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 (ja)
EP (1) EP0321570B1 (ja)
JP (1) JPH0738977B2 (ja)
CN (1) CN1010052B (ja)
BR (1) BR8707803A (ja)
CA (1) CA1296848C (ja)
DD (1) DD271063A5 (ja)
DE (1) DE3777659D1 (ja)
FI (1) FI890852A0 (ja)
IN (1) IN168927B (ja)
SU (1) SU1549622A1 (ja)

Families Citing this family (7)

* 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
JP5420642B2 (ja) * 2008-05-06 2014-02-19 グラコ ミネソタ インコーポレーテッド 洗浄液カートリッジ
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

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

Similar Documents

Publication Publication Date Title
DE2162320A1 (ja)
DE2516810B2 (de) Mit Druckflüssigkeit betriebener Schlagapparat
DE2643483A1 (de) Ein von einer druckfluessigkeit getriebener schlagapparat
EP0321570B1 (de) Druckluftpatrone
CH689297A5 (de) Spruehkopf mit druckempfindlichem Ventil.
DE3150033A1 (de) Vakuumpumpe mit einem saugstutzen-ventil und betriebsverfahren dafuer
DE19509322C2 (de) Hochdruck-Feuerlöschgerät
DE2036240A1 (de) Druckgasgesteuertes Gewehr
CH626823A5 (en) Hydraulic percussion apparatus
EP0842102B1 (de) Blasvorrichtung mit aussenliegender ventileinheit
EP0286940B1 (de) Vorrichtung zur Erzeugung von Schlagobers
CH597513A5 (en) Reciprocating pump for conveying viscous material
EP0333859B1 (de) Vorrichtung zum reinigen von rohrleitungen
DE2703219A1 (de) Gewinnungswerkzeug, insbesondere fuer den untertagebergbau
DE102014011403A1 (de) Rammbohrgerät
DE4212615C1 (en) Wet sand blasting machine with pressurised water tank - has water supply interrupter to tank acting simultaneously with air supply interrupting to jet nozzle
DE2840517A1 (de) Sicherheits- und entlastungsventil
EP0802328B1 (de) Hydraulischer Stossheber
DE2304752A1 (de) Vorrichtung zur pneumatisch - hydraulischen uebertragung von kraeften
AT247179B (de) Einrichtung zum selbsttätigen periodischen Einbringen von Frostschutzmittel in die Druckluftbremsanlage von Kraftfahrzeugen
DE3003834A1 (de) Sicherheitseinrichtung an drucklufthaemmern
DE951491C (de) Zweistufige Foerder- und Druckpumpe als Fasspresse
DE3543030C2 (ja)
CH692057A5 (de) Antriebseinrichtung für eine Absperrvorrichtung in einer Rohrleitung.
DD281552A5 (de) Vorrichtung zum reinigen von rohrleitungen

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19890221

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

A4 Supplementary search report drawn up and despatched

Effective date: 19891024

17Q First examination report despatched

Effective date: 19910510

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19920318

Ref country code: SE

Effective date: 19920318

Ref country code: NL

Effective date: 19920318

Ref country code: GB

Effective date: 19920318

Ref country code: FR

Effective date: 19920318

Ref country code: BE

Effective date: 19920318

REF Corresponds to:

Ref document number: 73695

Country of ref document: AT

Date of ref document: 19920415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3777659

Country of ref document: DE

Date of ref document: 19920423

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19921027

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19921031

Ref country code: CH

Effective date: 19921031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19921229

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19931021

Ref country code: AT

Effective date: 19931021