PT85584B - CONTROL DEVICE FOR PNEUMATIC FILTER CLEANING - Google Patents
CONTROL DEVICE FOR PNEUMATIC FILTER CLEANING Download PDFInfo
- Publication number
- PT85584B PT85584B PT85584A PT8558487A PT85584B PT 85584 B PT85584 B PT 85584B PT 85584 A PT85584 A PT 85584A PT 8558487 A PT8558487 A PT 8558487A PT 85584 B PT85584 B PT 85584B
- Authority
- PT
- Portugal
- Prior art keywords
- cylinder
- tube
- reservoir
- ball
- gate
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims description 4
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- 229920003023 plastic Polymers 0.000 claims 2
- 239000004033 plastic Substances 0.000 claims 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 241000838698 Togo Species 0.000 claims 1
- 230000007797 corrosion Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
- B65D88/703—Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Cleaning In General (AREA)
Description
presente invento refere-se a um dispositivo para limp£ Kza pneumática de filtros compreendendo uma comporta disposta num reservatório de ar comprimido e constituída por uma válvu la que pode ser aplicada sobre a extremidade de um tubo, que entra dentro do reservatório e que está ligado a meios de injecção, para cortar a comunicação entre o reservatório e os referidos meios de injecção e que pode ser dela afastada para restabelecer esta comunicação·This invention relates to a device for £ limp K za filter air comprising a gate disposed in a compressed air reservoir is constituted by a Plunger Valve which can be applied to the end of a tube which enters into the reservoir and is connected to injection means, to cut the communication between the reservoir and said injection means and which can be removed from it to reestablish this communication ·
Para se poderem criar, com um dispositivo destes, ondas de frente rígida, de curta duração e de frequência elevada, reduzir a diferença entre a pressão dentro do reservatório e a pressão útil e reduzir o desgaste do elemento móvel da com porta, a válvula é constituída por uma esfera (2) montada com folga dentro de um cilindro (3) que está disposto coaxialmente ao referido tubo (5) longe deste e cuja extremidade mais afastada do tubo compreende um assento anular (8) cuja abertura central (7) faz comunicar o interior do referido ci^ lindro com uma comporta piloto (1) que permite ligar o referido cilindro quer a uma fonte de ar comprimido quer à atmos. fera .In order to create, with such a device, waves of rigid front, of short duration and of high frequency, to reduce the difference between the pressure inside the reservoir and the useful pressure and to reduce the wear of the moving element of the with door, the valve is consisting of a sphere (2) mounted loosely inside a cylinder (3) which is coaxially disposed to said tube (5) away from it and whose end furthest from the tube comprises an annular seat (8) whose central opening (7) forms communicate the interior of said cylinder with a pilot gate (1) that allows the said cylinder to be connected either to a source of compressed air or to the atmosphere. beast .
5 63 drd/br ef/gl5 63 drd / br ef / gl
D. 1005 AIED. 1005 IEA
KEMÓRIA DESCRITIVA presente invento refere-se aos filtros que compreendem elementos em forma de manga ou de sacos que são atravessados, do exterior para o interior, pelo fluido, geralmente um gás, a depurar e nos quais se injecta, periodicamente um gás sob pressão, geralmente ar, para os limpar. 0 invento tem por objecto um dispositivo destinado a comandar a admissão do gás de limpeza nos elementos filtrantes de modo a criar impulsos de curta duração que provocam a deformação dos elementos filtrantes e a queda das poeiras depositadas sobre estes elementos. Estes dispositivos compreendem uma comporta pilotada e geralmente comandada electricamente que faz um reservatório de ar sob pressão comunicar com bicos ou orifícios de injecção de ar para dentro dos elementos filtrantes.KEMÓRIA DESCRITIVA present invention relates to filters that comprise elements in the form of a sleeve or bags that are crossed, from the outside to the inside, by the fluid, usually a gas, to be purified and in which a gas under pressure is periodically injected, usually air, to clean them. The invention relates to a device for controlling the admission of the cleaning gas to the filter elements in order to create short-term impulses that cause the filter elements to deform and the dust deposited on these elements to fall. These devices comprise a piloted and generally electrically controlled gate that makes an air reservoir under pressure communicate with nozzles or air injection holes into the filter elements.
Conhecem-se, em particular, dispositivos deste tipo nos quais a comporta está colocada no reservatório de ar comprimido e é constituída por uma válvula que se vem aplicar sobre a extremidade um tubo que penetra no reservatório e juntar aos meios de injecção, para isolar estes últimos do reservatório, assim que uma pressão suficiente é aplicada através de uma com porta pilotada na parte de trás do diafragma e que se afasta do assento constituído pela extremidade do tubo para pôr em comunicação o reservatório e os meios de injecção quando o espaço atrás da válvula é posto em contacto com a atmosfera pela comporta pilotada. Devido à inércia do diafragma, os tempos de abertura e de fecho da comporta são relativamente longos, e, em consequência, a frequência dos impulsos é relativamente bai_ xa· Por outro lado, o desgaste da válvula na zona que se vai aplicar sobre a extremidade do tubo é rápido e necessita de su bstituições frequentes da válvula.In particular, devices of this type are known in which the penstock is placed in the compressed air reservoir and consists of a valve that is applied over the end of a tube that penetrates the reservoir and added to the injection means, to isolate these end of the reservoir, as soon as sufficient pressure is applied through a pilot-operated door at the rear of the diaphragm and which moves away from the seat constituted by the end of the tube to connect the reservoir and the injection means when the space behind the valve is put in contact with the atmosphere by the piloted gate. Due to the inertia of the diaphragm, the opening and closing times of the penstock are relatively long, and, as a result, the frequency of the pulses is relatively low · On the other hand, the wear of the valve in the area to be applied on the end The tube is fast and requires frequent valve replacements.
A finalidade do presente invento é melhorar os desempenhos destes dispositivos e nomeadamente poder criar ondas de pressão de frente rígida, de curta duração e de frequência elevada, reduzir a diferença entre a pressão no reservatório e a pressão útil e diminuir o desgaste do elemento móvel da válvula.The purpose of the present invention is to improve the performance of these devices and in particular to be able to create pressure waves of rigid front, of short duration and of high frequency, to reduce the difference between the pressure in the reservoir and the useful pressure and to reduce the wear of the moving element of the valve.
5δ35δ3
DRC/3R EF/GLDRC / 3R EF / GL
D-1005 ΑΙΕD-1005 ΑΙΕ
<dI<dI
-50 dispositivo objecto do presente invento é caracterizado pelo facto da válvula da comporta ser constituída por uma esfera montada com folga num cilindro que está colocado em frente do tubo que entra no reservatório, afastado do referido tubo, e que está disposto sobre o reservatório de modo a poder deslocar-se em relação ao dito tubo em qualquer direcção perpendicular ao seu eixo e pelo facto da extremidade do referido cilindro mais afastada da extremidade do tubo compreender um assento anular cuja abertura central faz comunicar o espaço entre a esfera e o assento com uma comporta piloto que permite pôr este espaço em comunicação quer com uma fonte de ar compri. mido, quer com atmosfera.-50 device object of the present invention is characterized by the fact that the gate valve is constituted by a sphere loosely mounted on a cylinder that is placed in front of the tube that enters the reservoir, away from the said tube, and that is disposed on the reservoir of in order to be able to move in relation to said tube in any direction perpendicular to its axis and in that the end of said cylinder furthest from the end of the tube comprises an annular seat whose central opening communicates the space between the sphere and the seat with a pilot gate that allows this space to be communicated either with a compressed air source. moist or with atmosphere.
A esfera é feita de um material leve, de modo a possuir uma inércia pequena e se poder deslocar rapidamente. Estes de locamantos são alias facilitados pelo ar que passa entre a esf ra e a parede do cilindro e pela possibilidade de rotação da e fera. Esta rotação permite, aliás, reduzir consideravelmente o desgaste da esfera dado que a zona de contacto com a extremidade do tubo varia constantemente.The sphere is made of a lightweight material, so that it has a small inertia and can move quickly. These locamants are also facilitated by the air that passes between the ball and the cylinder wall and by the possibility of rotation of the beast. This rotation, moreover, makes it possible to considerably reduce the wear of the ball as the contact zone with the end of the tube varies constantly.
cilindro esta montado de modo flutuante sobre um suporte solidário com o reservatório para permitir que a esfera permane ça centrada sobre o eixo do tubo- Suprime-se assim qualquer ζ problema de alinhamento na montagem e, qualquer deformação relativa do reservatório e do tubo, devida por exemplo a variações de temperatura, é automaticamente compensada.cylinder is mounted in a floating manner on a support solidary with the reservoir to allow the sphere to remain centered on the axis of the tube- This eliminates any ζ alignment problem in the assembly and any relative deformation of the reservoir and tube due to for example to temperature variations, it is automatically compensated.
Outras características do invento tornar-se-ão evidentes pela leitura da descrição que se segue e que se refere ao desenho anexo que mostra a título de exemplo não limitativo, um modo de realização do invento·Other features of the invention will become apparent from reading the description that follows and which refers to the attached drawing which shows by way of non-limiting example, an embodiment of the invention ·
A figura única do desenho é um corte de um reservatório equipado com um dispositivo de comando de acordo com o inventoNesta figura, o número de referência 4 designa o reservatório de um sistema da limpeza pneumática para filtros. TTm tu bo vertical 5 atravessa o fundo do reservatório ao qual está fixado e penetra naquele sobre uma boa parte da sua altura. A extremidade inferior deste tubo está fixada a uma tubagem deThe single figure in the drawing is a section of a reservoir equipped with a control device according to the invention. In this figure, reference number 4 designates the reservoir of a pneumatic cleaning system for filters. TTm tu bo vertical 5 crosses the bottom of the reservoir to which it is attached and penetrates it over a good part of its height. The bottom end of this tube is attached to a
563563
DRD/3R EF,/GLDRD / 3R EF, / GL
D-1005 AIE distribuição, munida de bicos ou orifícios de injecção de ar nos elementos do filtro; esta tubagem não foi representada no desenho.D-1005 AIE distribution, equipped with nozzles or air injection holes in the filter elements; this piping was not shown in the drawing.
A comunicação entre o tubo 5 e o interior do reservatório 4 é controlada por uma comporta constituída es senclalm.en. te por uma esfera 2 e um cilindro 3 colocado por cima do tubo 5, coaxlalmente a este. A esfera 2 tem um diâmetro superl^ or ao do tubo e obtura este assim que se encontra na posição representada a traço contínuo no desenho. 0 cilindro 3 tem um diâmetro interior ligeiramente superior ao diâmetro da esfera 2, de modo que haja uma folga entre a parede do cilindroThe communication between the tube 5 and the interior of the reservoir 4 is controlled by a gate constituted esenclalm.en. by a sphere 2 and a cylinder 3 placed over the tube 5, coaxially to it. The sphere 2 has a diameter greater than that of the tube and fills it as soon as it is in the position shown in continuous line in the drawing. The cylinder 3 has an inside diameter slightly larger than the diameter of the ball 2, so that there is a gap between the cylinder wall
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8612985A FR2603968B1 (en) | 1986-09-17 | 1986-09-17 | CONTROL DEVICE FOR PNEUMATIC CLEANING OF FILTERS |
Publications (2)
Publication Number | Publication Date |
---|---|
PT85584A PT85584A (en) | 1988-10-14 |
PT85584B true PT85584B (en) | 1993-07-30 |
Family
ID=9339025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT85584A PT85584B (en) | 1986-09-17 | 1987-08-25 | CONTROL DEVICE FOR PNEUMATIC FILTER CLEANING |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE1004314A5 (en) |
BR (1) | BR8704780A (en) |
CA (1) | CA1308669C (en) |
ES (1) | ES2008895A6 (en) |
FR (1) | FR2603968B1 (en) |
IT (1) | IT1222488B (en) |
PT (1) | PT85584B (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788527A (en) * | 1973-01-22 | 1974-01-29 | Martin Eng Co | Quick-release aerator for introducing high pressure air into a container to facilitate dispensing |
US4197966A (en) * | 1978-09-25 | 1980-04-15 | Vibco, Inc. | Air blaster or air accumulator and quick dump apparatus |
DE3223406C2 (en) * | 1982-06-23 | 1985-10-31 | VSR Engineering GmbH Fördertechnik, 4330 Mülheim | Blowing device for removing blockages in storage silos for bulk goods by means of blasts of air |
FR2547639B1 (en) * | 1983-06-15 | 1985-10-25 | Simoens Herve | PISTON OF SUPPLY VALVE OF A CAPACITY THEN BRUTAL DISCHARGE OF THIS CAPACITY AND BRUTAL DISCHARGE VALVE PROVIDED WITH THIS PISTON |
-
1986
- 1986-09-17 FR FR8612985A patent/FR2603968B1/en not_active Expired
-
1987
- 1987-08-07 CA CA000544027A patent/CA1308669C/en not_active Expired - Lifetime
- 1987-08-12 IT IT21641/87A patent/IT1222488B/en active
- 1987-08-25 PT PT85584A patent/PT85584B/en not_active IP Right Cessation
- 1987-08-28 BE BE8700963A patent/BE1004314A5/en not_active IP Right Cessation
- 1987-09-09 ES ES8702592A patent/ES2008895A6/en not_active Expired
- 1987-09-16 BR BR8704780A patent/BR8704780A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1222488B (en) | 1990-09-05 |
IT8721641A0 (en) | 1987-08-12 |
PT85584A (en) | 1988-10-14 |
FR2603968B1 (en) | 1989-02-24 |
ES2008895A6 (en) | 1989-08-16 |
BE1004314A5 (en) | 1992-11-03 |
CA1308669C (en) | 1992-10-13 |
FR2603968A1 (en) | 1988-03-18 |
BR8704780A (en) | 1988-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19930122 |
|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19940731 |