EP0466943A1 - Pulverisateur de liquide - Google Patents

Pulverisateur de liquide Download PDF

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Publication number
EP0466943A1
EP0466943A1 EP91903926A EP91903926A EP0466943A1 EP 0466943 A1 EP0466943 A1 EP 0466943A1 EP 91903926 A EP91903926 A EP 91903926A EP 91903926 A EP91903926 A EP 91903926A EP 0466943 A1 EP0466943 A1 EP 0466943A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
operating fluid
movable element
housing
channel
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Withdrawn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
EP91903926A
Other languages
German (de)
English (en)
Other versions
EP0466943A4 (en
Inventor
Roman Vladimirovich Kostenko
Viktor Ivanovich Savchenko
Andrei Karlovich Sinelschikov
Tatyana Nikolaevna Fomina
Oleg Vladimirovich Lazarev
Sergei Fedorovich Sljunyaev
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.)
VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTRUMENTALNY INSTITUT
Original Assignee
VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTRUMENTALNY 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
Priority claimed from SU904784171A external-priority patent/RU1771818C/ru
Priority claimed from SU4855987 external-priority patent/RU1819683C/ru
Application filed by VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTRUMENTALNY INSTITUT filed Critical VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTRUMENTALNY INSTITUT
Publication of EP0466943A1 publication Critical patent/EP0466943A1/fr
Publication of EP0466943A4 publication Critical patent/EP0466943A4/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles

Definitions

  • the present invention relates to the field of mechanical engineering, in particular to a liquid atomizer.
  • a liquid atomizer including a housing with a nozzle which is connected to a system for the supply of pressurized gas, a means for supplying operating fluid into the nozzle which is arranged in the housing and which contains a nozzle, one end of which is accommodated in the nozzle channel which co-operates with is coaxial with the channel of the nozzle, a system for cleaning the agent for supplying operating fluid into the nozzle and an encoder connected to a control block for controlling the cleaning system for the presence of the operating fluid in the nozzle (SU, A, 1507457).
  • the means for supplying operating fluid to the nozzle in the housing is arranged axially displaceable relative to the atomizer housing.
  • an aerosol stream is formed in the nozzle channel as a result of a dynamic interaction of the fluid with the high-speed gas stream, which accomplishes both the cleaning of the individual parts and the coating of the same.
  • the sender for the presence of the liquid in the nozzle of the said means sends a signal to the control block for controlling the cleaning system, whereby the operating fluid supply is switched off and displaced from the nozzle into the atomizer housing.
  • the compressed gas is blown through the means for supplying operating fluid, which flows in through the opening provided in the housing.
  • openings on the circumference of the agent for the supply of operating fluid into the nozzle which serve not only for the supply of operating fluid in the atomization mode, but also for blowing through the agent in the mode of cleaning it from contaminants accumulated on the inner surface thereof and in the standstill zones.
  • the constructive design of the cleaning system makes it possible to clean the agent for the supply of operating fluid only by blowing it through, which likewise does not guarantee a complete removal of impurities deposited on the walls and accumulated in the standing zones of the means for operating fluid supply.
  • the blowing does not succeed in the channel of the nozzle of the agent for supplying operating fluid e.g. Adhesive paints and varnishes to clean due to their high adhesion to the surface.
  • operating fluid e.g. Adhesive paints and varnishes to clean due to their high adhesion to the surface.
  • the present invention is based on the object of providing a liquid atomizer in which the constructive design of the system for cleaning the agent for supplying operating fluid and the agent itself would allow the standstill zones in the means for supplying operating fluid to be excluded and, in addition to blowing through the said agent, also bring about its washing, which will ultimately improve the quality of the processing of individual parts.
  • the atomizer which has a housing with a nozzle which is connected to a system for the supply of pressurized gas, means arranged in the housing for supplying operating fluid into the nozzle, which includes a nozzle, one end of which is in the nozzle channel which is coaxial with the channel of the nozzle, includes a system having a control block for cleaning the agent for supplying operating fluid into the nozzle and a sensor connected to the control block for the presence of the operating fluid in the connector, according to the invention the means for supplying operating fluid in the housing is rigidly attached, while the system for the cleaning of this agent contains a pipe provided with an overflow valve for supplying washing liquid and a movable element arranged on the outside of the atomizer housing, which in the direction of that in the nozzle below provided nozzle end is displaceable, at one end with a Sliding device is connected and the free end of which has a cross section larger than the cross section of the connecting piece, the control block for controlling the cleaning system being connected to the sliding device of
  • the design of the atomizer according to the invention has significant advantages over the known one, because the rigid attachment of the means for supplying operating fluid makes it possible to reduce the wear on the component of the atomizer, which wear was previously caused by the displacement of this means, while the design of the cleaning system and the elements (assemblies) interacting with it, in contrast to the known atomizer, not only allow this agent to be blown through but also to be washed, which ensures better quality cleaning of the agent from deposited impurities.
  • the pipeline in the atomizer prefferably be flexible and to be connected to the movable element, which is hollow.
  • the presence of the flexible pipeline makes it possible to change its length and to adjust the movable element to the required position during the cleaning process.
  • the device for displacing the movable element has a bush rigidly attached to the housing, which is provided with grooves for moving therein guides with the movable element attached to the same, and a stick which is connected at one end to the movable element and the other is connected to the drive of said device.
  • Such a construction of the displacement device simplifies the setting of the movable element in the required position (blow-through washing).
  • the pipeline in the atomizer prefferably be connected to the channel of the nozzle via a bore made essentially on the side surface of the nozzle next to its end accommodated in the nozzle channel, while the control block for controlling the cleaning system is connected to the overflow valve, whereby the sensor for the presence of the operating fluid in the nozzle is designed as a pressure sensor and is attached to the pipeline.
  • the atomizer is cleaned by blowing and washing at the same time.
  • Such an atomizer is used to atomize e.g. Gels and suspensions used.
  • the bore on the side surface of the nozzle is essentially raised at its end, based on the condition that all the inner surfaces of the agent are cleaned as completely as possible.
  • the liquid atomizer contains a housing I (FIG. I) which has a nozzle 2 which is connected to a system 3 for supplying compressed gas via an opening 4 in the housing I.
  • the atomizer also contains a means 5 arranged in the housing I for the supply of operating fluid into the nozzle 2, which means is connected to a system 6 for the supply of operating fluid and has a nozzle 7, one end 8 of which is located in the channel 2 'of the nozzle 2, which is connected to is coaxial with the channel 7 'of the connector 7, and the other end is connected to a channel 10 which supplies the operating fluid from the system 6 for the operating fluid supply.
  • Gels, suspensions, lacquers, paints and the like are used as the operating fluid.
  • the dimensions and shape of the nozzle are dependent on operating conditions and modes of operation (types of liquids to be atomized, gas pressure, speed of the jet etc.) designed.
  • the atomizer also contains a system 11 for cleaning the agent 5 for supplying operating fluid into the nozzle 2 and a sensor 12 for the presence of the operating liquid in the nozzle 7, which sensor is connected to a control block 13 for controlling the system 11 for cleaning the agent 5 is.
  • the system 11 for cleaning the agent 5 for supplying operating liquid into the nozzle contains a pipe 14 (FIG. 2) for supplying the washing liquid, which has an overflow valve 15 which is connected to a system 16 for supplying the washing liquid.
  • Water, organic solvents, detergents and the like come as washing liquid. depending on the properties of the operating fluid used and the material from which the individual parts of the atomizer are made.
  • the cleaning system 11 also contains a movable element 17 arranged on the outside of the atomizer housing I, which is connected at one end 17 'to a device 18 for displacing it in the direction of the end 8 of the nozzle 7 accommodated in the channel 2 1 of the nozzle 2 .
  • the free end 17 ° of the movable element 17 has a cross section larger than the cross section of the nozzle 7.
  • the movable element 17 is designed in the form of a hollow cylindrical tube with an outside diameter D that is larger than the outside diameter d of the connector 7.
  • the control block 13 for controlling the cleaning system 11 is connected to the displacement device 18.
  • FIG. 2 shows an embodiment variant of the atomizer in which the pipeline 14 is designed to be flexible and is connected to the movable element 17, which is hollow.
  • the transmitter 12 for the presence of the operating fluid is accommodated in the nozzle 7 in the channel 7 'of the latter.
  • the device 18 for moving the movable element comprises a bushing 19 rigidly attached to the housing of the atomizer, which is provided with grooves 20 for moving therein guides 21 with the movable element 17 attached to it and a stick 22 attached to one End is connected to the movable element 17 and at the other end to the drive 23 of the device 18 for its displacement.
  • the advantage of this construction of the displacement device 18 is that it is simple to manufacture and is characterized by the interchangeability of components; however, the construction of this device may be different, but it does the same job.
  • FIG. 1 Another variant of the atomizer is shown in FIG.
  • a pipe 24 is connected to the channel 7 'of the nozzle 7 via a bore 25 on the side surface of the nozzle 7, which is located next to the end 8 of the nozzle accommodated in the channel 2 1 of the nozzle 2 7 is located.
  • the control block 13 for controlling the cleaning system II is connected to the overflow valve 15, the transmitter 12 for the presence of the operating fluid in the nozzle 7 being designed as a pressure transmitter and attached to the pipeline 24.
  • a movable element 26 is also connected to a device 27 for displacing it, which can be carried out in a manner similar to the previous variant or in any known manner to achieve this goal.
  • the atomizer according to the invention works as follows.
  • an aerosol stream forms in the nozzle 2 due to the dynamic interaction of the liquid with the high-speed gas stream.
  • the aerosol stream is directed to products for their processing.
  • the supply of operating fluid from the system 6 via the channel 10 to the medium 5 ceases.
  • the transmitter 12 responds and sends a signal to the control block 13.
  • the cleaning of the channel 7 'of the nozzle 7 and the channel 10 of the atomizer takes place as follows.
  • the signal from the control block 13 reaches the device 18 for displacing the movable element 17.
  • the movable element 17 is guided via the guides 21 through the bushing 19 from the outer zone of the gas nozzle 2 into the channel 2 1 advanced towards the end 8 of the nozzle 7 until the free end 17 "of the movable element 17 comes to a certain distance I (FIG. 4) from the end 8 of the nozzle 7.
  • the distance 1 mentioned is chosen equal to the outer diameter d of the nozzle 7.
  • the resulting increased gas pressure at the end 8 of the nozzle 7 (due to the braking of the gas flow) promotes the blowing through of its channel 7 'and the channel 10.
  • the blowing through was very weak going out or not at all is, while at a distance I smaller than the diameter d, the blowing takes place too intensely, which can cause damage to the walls of the nozzle 7, and also a strong swelling of the operating fluid in the (not shown in Fig.) system 6 system the operating fluid supply can be observed.
  • the cleaning is most effective when the distance I is equal to d.
  • the diameter D of the free end 17 ′′ of the movable element 17 is selected to be 1.5 to 1.8 times larger than the diameter d of the nozzle 7.
  • the control block 13 After setting the movable element 17 in the predetermined position, the control block 13 issues a next command to the device 18 for displacing the movable element 17 in order to blow through the duct 7 'of the connector 7 and the duct 10, and the further displacement takes place of the movable element 17 until the union thereof with the end face of the nozzle 7 (Fig. 5) on the side of the end 8 instead.
  • the overflow valve 15 opens and the washing liquid is supplied under pressure from the system 16 for the washing liquid supply to the channels 10 and 7, whereby their washing takes place.
  • the movable element 17 returns to the starting position (FIG. 2), the washing liquid supply being shut off at the same time with the aid of the valve 15.
  • the supply of the operating fluid from the system 6 stops as the movable element 26 moves towards the end 8 of the nozzle 7 and adjusts itself at a distance 11 (FIG. 6) from it which is approximately equal to the diameter d of the nozzle 7 is. Then the blowing takes place. Simultaneously with this signal from the control block 13, the overflow valve 15 opens and the washing liquid is fed from the system 16 via the pipeline 24 through the lateral bore 25 to the channel 7 'of the nozzle 7, so that the channels 7 and 10 are washed in this way takes place. It should be noted that the movable element 26 does not return to the outer zone of the gas nozzle 2 during the washing process, and therefore the blowing and washing take place at the same time, which contributes to a more effective cleaning of the agent 5.
  • control block 13 After washing has ended, the control block 13 sends a signal to the displacement device 27 and the overflow valve 15, as a result of which the movable element 26 returns to the starting position while the overflow valve 15 closes and prevents the supply of the operating liquid.
  • the liquid atomizer according to the invention has a high performance and ensures a high quality of the atomization of various liquids.
  • the invention can be most effectively applied to the aerospace, automotive, tool and fixture, paper, and other industries for the atomization of gels, suspensions, slurries.
  • the invention can be used to atomize lacquers, paints, colloidal solutions when applying decorative and special protective coatings.

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  • Physical Or Chemical Processes And Apparatus (AREA)
  • Nozzles (AREA)

Abstract

Le pulvérisateur de l'invention comprend un moyen (5) destiné à acheminer le liquide de travail à un ajutage (2) fixé rigidement dans une structure (1), un système (11) de nettoyage dudit moyen (5) et doté d'un conduit (14) destiné à acheminer un liquide de lavage, d'une vanne de trop plein (15) et d'un élément (17) monté de manière à pouvoir se déplacer vers l'extrémité (8) d'un tube (7) situé dans l'ajutage (2), et dont la section transversale est plus grande que celle du tube (7), ainsi qu'une unité (13) destinée à réguler le système de nettoyage (11) connecté à un mécanisme (18) de déplacement de l'élément (17).
EP19910903926 1990-02-05 1990-12-07 Liquid pulverizer Withdrawn EP0466943A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SU4784171 1990-02-05
SU904784171A RU1771818C (ru) 1990-02-05 1990-02-05 Распылитель жидкости
SU4855987 1990-06-30
SU4855987 RU1819683C (ru) 1990-07-30 1990-07-30 Распылитель жидкости

Publications (2)

Publication Number Publication Date
EP0466943A1 true EP0466943A1 (fr) 1992-01-22
EP0466943A4 EP0466943A4 (en) 1992-07-01

Family

ID=26666227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910903926 Withdrawn EP0466943A4 (en) 1990-02-05 1990-12-07 Liquid pulverizer

Country Status (2)

Country Link
EP (1) EP0466943A4 (fr)
WO (1) WO1991011266A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814491A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zur Vermeidung oder Beseitigung von Verstopfungen im Dosierspalt eines Düsenauftragswerks
US7947199B2 (en) 2005-03-02 2011-05-24 Ormecon Gmbh Conductive polymers consisting of anisotropic morphology particles
US7989533B2 (en) 2005-08-19 2011-08-02 Ormecon Gmbh Chemical compound comprising an indium-containing intrinsically conductive polymer
EP2349581A1 (fr) * 2008-07-14 2011-08-03 Kim Lui So Procédé et appareil pour conserver une alimentation de fluide
US8153271B2 (en) 2006-09-13 2012-04-10 Ormecon Gmbh Article with a coating of electrically conductive polymer and precious/semiprecious metal and process for production thereof
US8344062B2 (en) 2004-01-23 2013-01-01 Ormecon Gmbh Dispersions of intrinsically conductive polymers
CN111013837A (zh) * 2019-11-12 2020-04-17 河北华丰能源科技发展有限公司 喷头及喷洒系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351886A (en) * 1993-02-11 1994-10-04 Bull Dan F Self-cleaning shower nozzle system
AU3093595A (en) * 1994-07-25 1996-02-22 Nordson Corporation System for cleaning accumulation on powder spray gun

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854325A1 (de) * 1978-12-15 1980-06-19 Mueller Ernst & Co Spueleinrichtung fuer spruehvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS242610B1 (en) * 1982-11-19 1986-05-15 Miloslav Sorm Double acting mechanical pump for liquid spray
GB8527244D0 (en) * 1985-11-05 1985-12-11 Roberts G S Cleaning spray painting guns
SU1479122A1 (ru) * 1987-04-27 1989-05-15 Предприятие П/Я А-1080 Пистолет дл распылени быстрополимеризующихс двухкомпонентных материалов

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854325A1 (de) * 1978-12-15 1980-06-19 Mueller Ernst & Co Spueleinrichtung fuer spruehvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9111266A1 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814491A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zur Vermeidung oder Beseitigung von Verstopfungen im Dosierspalt eines Düsenauftragswerks
US8344062B2 (en) 2004-01-23 2013-01-01 Ormecon Gmbh Dispersions of intrinsically conductive polymers
US7947199B2 (en) 2005-03-02 2011-05-24 Ormecon Gmbh Conductive polymers consisting of anisotropic morphology particles
US7989533B2 (en) 2005-08-19 2011-08-02 Ormecon Gmbh Chemical compound comprising an indium-containing intrinsically conductive polymer
US8153271B2 (en) 2006-09-13 2012-04-10 Ormecon Gmbh Article with a coating of electrically conductive polymer and precious/semiprecious metal and process for production thereof
EP2349581A1 (fr) * 2008-07-14 2011-08-03 Kim Lui So Procédé et appareil pour conserver une alimentation de fluide
EP2349581A4 (fr) * 2008-07-14 2013-03-13 Kim Lui So Procédé et appareil pour conserver une alimentation de fluide
CN111013837A (zh) * 2019-11-12 2020-04-17 河北华丰能源科技发展有限公司 喷头及喷洒系统
CN111013837B (zh) * 2019-11-12 2021-06-15 河北华丰能源科技发展有限公司 喷头及喷洒系统

Also Published As

Publication number Publication date
EP0466943A4 (en) 1992-07-01
WO1991011266A1 (fr) 1991-08-08

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