CN1094800C - Method and device for treating ducts - Google Patents
Method and device for treating ducts Download PDFInfo
- Publication number
- CN1094800C CN1094800C CN96194030A CN96194030A CN1094800C CN 1094800 C CN1094800 C CN 1094800C CN 96194030 A CN96194030 A CN 96194030A CN 96194030 A CN96194030 A CN 96194030A CN 1094800 C CN1094800 C CN 1094800C
- Authority
- CN
- China
- Prior art keywords
- nozzle
- pipeline
- propulsion plant
- fluid source
- hollow arm
- 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 - Fee Related
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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
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
-
- 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
Abstract
The invention relates to a method for cleaning ventilation ducts (2). For this purpose an underpressure is generated in the duct and a jet nozzle (13) connected to a source of fluid, for instance pressurized air (12), is guided through the duct in roughly the centre of the cross-sectional area thereof. The air jet loosens the accumulated dirt which is sucked out by the vacuum (6, 8).
Description
The present invention relates to handle pipeline, the method for cleanser conduit, particularly ventilation shaft for example, it may further comprise the steps:
-in above-mentioned pipeline, produce negative pressure, and
-advancing a nozzle by reaction thrust, described nozzle is connected in fluid source by flexible pipe or analog.
According to the method for known cleaning air-conditioning duct, in piping, produce negative pressure, send piping with a nozzle that is connected in fluid source.For example, this nozzle can be connected in compressed air source.Use powerful air-flow to unclamp ducted laying dust and it is removed from piping by negative pressure.Because the thrust of compressed air outflow, nozzle moves forward in pipeline so that carry out cleaning.
Above-mentioned this nozzle is disclosed among the EP-A-0077562.
Existing problem is in this known method, because the deadweight of the connector between nozzle and fluid source and nozzle, nozzle is positioned at the bottom of pipeline when moving forward.Like this, particularly in than large-diameter pipeline, can cause efficiency losses, and be difficult to clean fully the sealing corner of rectangular duct in this way.
According to a first aspect of the present invention, a kind of method of handling ventilation shaft inside is provided, may further comprise the steps: in described pipeline, produce the pressure that is lower than environmental pressure, and advance a nozzle by described pipeline by thrust device, described nozzle is connected in a fluid source, wherein said propulsion plant forms by following manner: extend radially out the flexible hollow arm that is connected in compressed fluid source, make nozzle remain on the center of described pipeline substantially, and advance described nozzle by reaction thrust from the pressurized flow of described hollow arm ejection.
Owing to adopt this step, be identical to a great extent in all direction upper walls to the distance of nozzle, thereby improved efficient greatly.
According to a second aspect of the present invention, a kind of device of handling ventilation shaft inside is provided, comprising: a nozzle that is connected in compressed fluid source, and propulsion plant, this propulsion plant is connected in compressed fluid source, is used to advance described nozzle to pass through pipeline; Wherein said propulsion plant forms by following manner: extend radially out the flexible hollow arm that is connected in described compressed fluid source, make nozzle remain on the center of described pipeline substantially, and advance described nozzle by reaction thrust from the pressure fluid of described hollow arm ejection.
In order to improve the stability of nozzle central authorities guiding, second group of arm can be set, they longitudinally separate a distance with the first arm, thereby supporting occurs on the position that longitudinal separation comes.
Disclose a kind of method and apparatus that is used for the clean air pipeline among the WO 94/19118, wherein, the nozzle that is connected in compressed air source moves past pipeline.Move and undertaken by rigid delivery tubes, at work, nozzle shakes along inside pipe wall.This device is unsuitable for cleaning rectangle or square pipe.Because the uncontrolled motion of nozzle, nozzle can not determine at work whether all wall portions of pipeline are subjected to clean operation.
USA 534 7677 discloses a kind of structure, wherein, has used the device of cleanser conduit, and in this device, one blows out part and moving past pipeline on the wheel or on the suitable framework.Air blows out from cleaning device, and wherein, cleaning device is done the sinusoidal motion by pipeline at work.Flexible separator is leaving the swivel nozzle that distance of tube wall keeps having some arms.
USA5109567 discloses a kind of device that is used for the clean air pipeline, and wherein, one has the nozzle that extends radially out arm and rotates in pipeline.Nozzle is connected in a flexible pipe, and this flexible pipe is pulled through pipeline.Flexible separator is leaving the swivel nozzle that distance of tube wall keeps having some arms.
SU-A-919 768 discloses a kind of device, and this device advances automatically by nozzle 5.By changing jet cleaning quality is improved at the inclination angle of wall.This device openly is not used for nozzle is generally remained on the device of the pipeline center that is cleaned.
EP-A-0 274 831 discloses a kind of method of handling the air-conditioning system air duct, gas is carried mist introduce air duct so that the coating tubes surface.Wherein openly be not used for air-flow is sent into air-conditioning system and nozzle is remained on device in the pipeline center substantially.
The accompanying drawing of following comparative examples further describes the present invention.
In the accompanying drawings:
Fig. 1 schematically represents according to method of the present invention,
Fig. 2 to 4 expression is according to method and apparatus of the present invention, and
Fig. 5 to 7 is with the perspective representation of the partly cut-away embodiment according to nozzle of the present invention.
The air piping 1 that is used to clean comprises that one is responsible for 2 and a few lateral canal, for example 3,4.Before cleaning, the grid in the side pipe is covered by cover plate 5.Closure member 7 in an opening of being responsible for is also by removal, and opening 6 is connected in the equipment 8 that produces negative pressure.What link to each other with this equipment is the tapping equipment 9 of dust 9.Cleaning device 11 is put into pipeline by the second little opening of being responsible in 2 10.Device 11 is connected in compressed air source 12.Device 11 comprises a nozzle 13, and this nozzle is connected in pressurized air source 12 by flexible pipe 14.Fig. 5 represents structure of nozzle in detail.
Shown in Fig. 2 to 4, nozzle is by flexing arm 15,16, and 17,18 are supported, thereby makes nozzle 13 roughly be positioned at the center of pipeline.Because the compressed-air actuated thrust of outflow, nozzle moves along the direction of arrow 19.Air-flow radially sprays from nozzle according to arrow 20, thereby unclamps the laying dust in the pipeline.Because the negative pressure that equipment 8 produces, dust be from the pipeline sucking-off, move to tapping equipment 9 along the direction of arrow 21,22.The jockey that radially-protruding arm is hollow form and is connected in nozzle to be obtaining pressure fluid such as compressed air, thereby the corner of pipeline also is subjected to the air influence that outflows, thereby cleaned fully.
Fig. 2 represents the pipeline of big cross section.Fig. 3 represents the pipeline of quite little cross section.This causes than bending bigger in the pipeline of Fig. 2 arm.
Fig. 4 represents the pipeline that cross section is very limited.
The various embodiments described above are represented, can clean the very wide pipeline of inside diameter ranges in the above described manner in principle.
In order further to improve stability, second group of radially-protruding arm 23,24,25,26 can be set with first group of arm 15,16,17,18 segment distance of being separated by.These two groups are connected by flexible limited connector 27.
It should be noted, withdraw from the process of nozzle after the cleaning that arm may fold its end is on the direction with position opposite shown in Fig. 2 to 4.
Fig. 5 represents the details of nozzle arrangements.Nozzle comprises a stationary part 30 and a rotating part 31.What be connected in stationary part 30 is aforesaid arm 15,16,17 and 18.Compressed air flows through stationary part 30 and arm 15,16,17 and 18 along the direction of arrow.Compressed air is also shifted to movable part 31.Select the inclination angle of outflow channel by rights, rotating part 31 can be rotated motion.The different directions of Fig. 6 and 7 expression outflow channels.Rotating part can be installed by submerged bearing 32, and submerged bearing is the groove water opening between the correlated parts.
Claims (4)
1. handle the method for ventilation shaft inside, may further comprise the steps:
In described pipeline, produce the pressure that is lower than environmental pressure, and
Advance a nozzle by described pipeline by thrust device, described nozzle is connected in a fluid source,
It is characterized in that: described propulsion plant forms by following manner: extend radially out the flexible hollow arm that is connected in compressed fluid source, make nozzle remain on the center of described pipeline substantially, and advance described nozzle by reaction thrust from the pressurized flow of described hollow arm ejection.
2. the method for claim 1, it is characterized in that: described nozzle and described propulsion plant are connected in a compressed air source.
3. handle the device of ventilation shaft inside, comprising:
A nozzle that is connected in compressed fluid source, and
Propulsion plant, this propulsion plant is connected in compressed fluid source, is used to advance described nozzle to pass through pipeline;
It is characterized in that: described propulsion plant forms by following manner: extend radially out the flexible hollow arm that is connected in described compressed fluid source, make nozzle remain on the center of described pipeline substantially, and advance described nozzle by reaction thrust from the pressure fluid of described hollow arm ejection.
4. device as claimed in claim 3 is characterized in that: described propulsion plant comprises at least two group hollow arm spaced apart.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1000399 | 1995-05-19 | ||
| NL1000399A NL1000399C2 (en) | 1995-05-19 | 1995-05-19 | Method and device for treating channels. |
| GB9713692A GB2326685A (en) | 1995-05-19 | 1997-06-27 | Nozzle for cleaning ducts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184441A CN1184441A (en) | 1998-06-10 |
| CN1094800C true CN1094800C (en) | 2002-11-27 |
Family
ID=26311808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96194030A Expired - Fee Related CN1094800C (en) | 1995-05-19 | 1996-04-17 | Method and device for treating ducts |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0825906B1 (en) |
| CN (1) | CN1094800C (en) |
| CA (1) | CA2221385A1 (en) |
| GB (1) | GB2326685A (en) |
| GR (1) | GR3031221T3 (en) |
| NL (1) | NL1000399C2 (en) |
| NO (1) | NO975279D0 (en) |
| NZ (1) | NZ306453A (en) |
| WO (1) | WO1996036445A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2157711B1 (en) * | 1998-02-27 | 2002-03-01 | Vilarasau Alegre M Teresa | DEVICE FOR CLEANING AIR DUCTS. |
| US6269519B1 (en) | 1999-10-15 | 2001-08-07 | Esteam Manufacturing Ltd. | Duct cleaning device |
| FI108408B (en) * | 1999-11-23 | 2002-01-31 | Lifa Iaq Ltd Oy | Air conditioning and other duct cleaning equipment |
| GB2384841B (en) * | 2002-01-30 | 2003-12-17 | Hamish Charles Gregor Mulliner | Pipe cleaning tool |
| GB0722467D0 (en) * | 2007-11-16 | 2007-12-27 | Fastflow Pipeline Services Ltd | Apparatus for cleaning an interior of a pipe |
| CN102580961B (en) * | 2012-02-03 | 2013-11-13 | 重庆大学 | Air duct cleaning device |
| CN106391602A (en) * | 2016-11-22 | 2017-02-15 | 天津中化洁安科技有限公司 | Air jet cleaning structure of special air conditioner pipeline sweeping robot |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994019118A1 (en) * | 1993-02-26 | 1994-09-01 | Johan Faxon | Process and arrangement for cleaning of pipelines |
| US5438720A (en) * | 1992-09-16 | 1995-08-08 | Daneshvar; Yousef | Toe protector and related devices |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073302A (en) * | 1977-01-18 | 1978-02-14 | Jones Thomas E | Cleaning apparatus for sewer pipes and the like |
| US4206313A (en) * | 1978-05-30 | 1980-06-03 | S. D. Meo | Pipe cleaning nozzle |
| SU919768A1 (en) * | 1980-03-18 | 1982-04-15 | Белорусский Конструкторско-Технологический Институт Городского Хозяйства | Apparatus for cleaning pipeline inner surface |
| US4780333A (en) * | 1986-12-29 | 1988-10-25 | Ford Motor Company | Method for treatment of air conditioning system |
| US5109567A (en) * | 1991-04-29 | 1992-05-05 | Steamatic, Inc. | Duct air sweeper |
| WO1993024246A1 (en) * | 1992-05-26 | 1993-12-09 | Bruce James Lake | Duct cleaning devices |
| US5438729A (en) * | 1992-12-28 | 1995-08-08 | Powell; Samuel O. | Apparatus for cleaning air ducts |
| US5347677A (en) * | 1993-02-12 | 1994-09-20 | Prentice William H | Apparatus for cleaning isolated surfaces |
| US5369834A (en) * | 1994-05-17 | 1994-12-06 | Groen; Douglas D. | Rotary duct cleaning brush device |
| AU2755995A (en) * | 1995-05-05 | 1996-11-21 | Mikael Gustafsson | A method for cleaning pipelines in ventilating systems |
-
1995
- 1995-05-19 NL NL1000399A patent/NL1000399C2/en not_active IP Right Cessation
-
1996
- 1996-04-17 CA CA002221385A patent/CA2221385A1/en not_active Abandoned
- 1996-04-17 NZ NZ306453A patent/NZ306453A/en unknown
- 1996-04-17 EP EP96912022A patent/EP0825906B1/en not_active Expired - Lifetime
- 1996-04-17 WO PCT/EP1996/001635 patent/WO1996036445A1/en not_active Application Discontinuation
- 1996-04-17 CN CN96194030A patent/CN1094800C/en not_active Expired - Fee Related
-
1997
- 1997-06-27 GB GB9713692A patent/GB2326685A/en not_active Withdrawn
- 1997-11-18 NO NO975279A patent/NO975279D0/en unknown
-
1999
- 1999-09-16 GR GR990402312T patent/GR3031221T3/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438720A (en) * | 1992-09-16 | 1995-08-08 | Daneshvar; Yousef | Toe protector and related devices |
| WO1994019118A1 (en) * | 1993-02-26 | 1994-09-01 | Johan Faxon | Process and arrangement for cleaning of pipelines |
Also Published As
| Publication number | Publication date |
|---|---|
| NO975279L (en) | 1997-11-18 |
| NL1000399C2 (en) | 1996-05-07 |
| CN1184441A (en) | 1998-06-10 |
| GR3031221T3 (en) | 1999-12-31 |
| EP0825906A1 (en) | 1998-03-04 |
| NZ306453A (en) | 1998-09-24 |
| NO975279D0 (en) | 1997-11-18 |
| EP0825906B1 (en) | 1999-06-30 |
| GB2326685A (en) | 1998-12-30 |
| CA2221385A1 (en) | 1996-11-21 |
| WO1996036445A1 (en) | 1996-11-21 |
| GB9713692D0 (en) | 1997-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |