EP0126889B1 - Dispositif d'inspection et de remplissage pour extincteur à poudre - Google Patents

Dispositif d'inspection et de remplissage pour extincteur à poudre Download PDF

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Publication number
EP0126889B1
EP0126889B1 EP84103337A EP84103337A EP0126889B1 EP 0126889 B1 EP0126889 B1 EP 0126889B1 EP 84103337 A EP84103337 A EP 84103337A EP 84103337 A EP84103337 A EP 84103337A EP 0126889 B1 EP0126889 B1 EP 0126889B1
Authority
EP
European Patent Office
Prior art keywords
filter
reversing
separator
air
suction
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
Application number
EP84103337A
Other languages
German (de)
English (en)
Other versions
EP0126889A1 (fr
Inventor
Bernhard Stöffler
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.)
Vulkan Werk Wilhelm Diebold GmbH
Original Assignee
Vulkan Werk Wilhelm Diebold GmbH
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 Vulkan Werk Wilhelm Diebold GmbH filed Critical Vulkan Werk Wilhelm Diebold GmbH
Priority to AT84103337T priority Critical patent/ATE39846T1/de
Publication of EP0126889A1 publication Critical patent/EP0126889A1/fr
Application granted granted Critical
Publication of EP0126889B1 publication Critical patent/EP0126889B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories

Definitions

  • the invention relates to a checking and filling device for powder extinguishers with a reversing device, a suction blower and a separator, which has a filter for retaining the extinguishing powder sucked in from a powder extinguisher, both the suction side and the pressure side of the suction blower being alternatively connectable to the outlet side of the filter and the direction of flow of the air can be switched over by actuating the reversing device.
  • a checking and filling device for powder extinguishers with a reversing device, a suction blower and a separator, which has a filter for retaining the extinguishing powder sucked in from a powder extinguisher, both the suction side and the pressure side of the suction blower being alternatively connectable to the outlet side of the filter and the direction of flow of the air can be switched over by actuating the reversing device.
  • Such a device belongs to the non-public, internal state of the art.
  • the procedure is generally such that the extinguishing powder contained in the powder extinguisher is first poured into an intermediate container, for example an empty powder extinguisher, from where it is then fed back to him with the aid of a device that is equipped with a Suction device, for example a suction fan and a separator, which is funnel-shaped in its lower region.
  • a Suction device for example a suction fan and a separator, which is funnel-shaped in its lower region.
  • a filter is assigned to the suction device of this device, which is intended to prevent the extinguishing powder sucked in from the intermediate container from reaching the suction device and impairing its functionality.
  • On the side of this filter facing away from the suction device there is very quickly powder deposits, which impair the suction power of the suction device.
  • the invention has for its object to improve a checking and filling device of the type described above with regard to the possibility of cleaning its separator filter.
  • a device according to claim 1.
  • the suction device does not need to be switched off during the cleaning process. Rather, the suction device can continue to run and be used for cleaning, the reversing filter, which is preferably arranged in the separator and independent of the first filter, prevents a pressure cushion preventing the first filter from building up in the separator and thus ensures that the first filter lasts for so long. can be backwashed until it is completely free of powder deposits.
  • the reversing device of the checking and filling device according to the invention can preferably be operated manually, with the advantage that a separate drive is unnecessary and the reversing process can be adapted to the particular circumstances.
  • the reversing device can be arranged on its separator and in particular can be designed as a control slide arranged between its suction fan and separator. Because of its compact design, such a device can be easily transported to the place of use and can also be handled there without any problems.
  • the reversing device is a control slide arranged between the suction fan and the separator, it can have an outlet duct leading from the reversing filter to the outside, preferably equipped with a check valve, through which reversed air can escape into the outside.
  • a rotary slide valve is preferably provided as the control slide valve, which offers the advantage that it can be actuated easily and without problems without obstruction to the device user.
  • the reversing device can also be arranged separately from the separator and connected to it via air lines. If this is the case, the reversing device preferably has a mechanical actuator which extends into the area of the separator, with the advantage that the device user can actuate it at any time, even during the filling process.
  • a flexible shaft can be assigned to this mechanical actuator.
  • the reversing filter is preferably arranged in the separator, so that extinguishing powder adhering to it can fall back into the separator after the reversing process has ended.
  • the filter surface of the reversing filter preferably points downwards.
  • the reversing filter can be designed as a ring filter and, if appropriate, is preferably arranged between the two walls of a double-walled separator, so that the reversed air can escape from the separator evenly all around.
  • an air guiding device can be provided which leads the reversed air below the separator filter or filters to the reversing filter.
  • one (or more) filter candle can be provided as a reversing filter, which has the advantage of being able to be replaced without problems.
  • This filter candle can be surrounded by a casing which is open at the bottom and which extends at least to the lower end of the filter or the filters of the separator and ensures that the reversed air is guided below the separator filter or filters to the reversing filter.
  • An air circuit can be connected to the reversing filter, which leads from the blown side of the device backwards through the separator, through the reversing filter and back to the suction side of the blower, so that the environment is in no way impaired by the reversing process. If such an air circuit can be connected to the reversing filter, the line running from the reversing filter to the reversing device can be closed when changing over to normal operation, thereby ensuring that no false air can flow into the separator during normal operation.
  • the reversing filter itself can be cleaned by air reversal, in particular by delayed pressure reduction on the clean side of the reversing filter.
  • the check valve assigned to the reversing filter can be used when switching to normal operation due to delayed valve closure and / or an empty volume present on the clean side of the reversing filter.
  • a check valve can be assigned to the reversing filter, which is arranged on the clean side of the reversing filter facing away from the filter surface, with the advantage that the reversing filter is easily accessible and exchangeable.
  • the device shown in Fig. 1 consists essentially of a separator 1, a suction attachment 2 and an intermediate piece 3 arranged between the separator 1 and the suction attachment 2, which are each tightly connected to one another.
  • the separator 1 has the shape of a circular cylinder, at the end of which, facing away from the intermediate piece 3 and pointing downward in the drawing, is followed by a frustoconical extension 4.
  • a connecting piece 5 is provided for a hose-shaped feed line.
  • Filter elements 6, in particular in the form of plastic sintered filter cartridges, are arranged in the separator 1 and are attached to a filter plate 7.
  • the filter plate 7 is carried by a sealing ring 8, which also has the task of ensuring a tight connection between the separator 1 and the intermediate piece 3 when the two are folded against one another and the associated latch 9 is closed.
  • the frustoconical extension 4 of the separator 1 merges into a pipe socket 10 which is provided with a frustoconical mouthpiece 11 at its free end.
  • the intermediate piece 3 consists of two parts 12, 13 which can be rotated concentrically with respect to one another, one of which is fixed and is designed as a supporting part 12 for a suction fan 14 which is arranged in the suction attachment 2.
  • the part 13 of the intermediate piece 3, which can be rotated concentrically with respect to the supporting part 12, is designed as a control slide, by means of which the air flow sucked in by the suction fan 14 can be switched over either to powder suction or to separator blow-by.
  • the supporting part 12 carries a covering hood 15 which forms part of the air duct for the air flow sucked in by the suction fan 14.
  • the supporting part 12 has a plurality of channel-like openings 16, 19 on its circumference, which communicate with the suction fan 14.
  • the control slide 13 has on its circumference a plurality of deflection devices 17, 19 and two radially aligned openings 20, 21 arranged one above the other, which can be brought into congruence with the openings 16, 19 of the support part 12 by rotating the control slide.
  • the aforementioned deflection devices of the control slide 13 are formed by chambers 17, 18 which are open towards the supporting part 12 and are formed in the control slide 13 and are either (see FIG. 17) to the separator 1 or (see FIG. 18) open to the outside.
  • control slide 13 assumes the position shown in FIG. 2, after switching on the suction blower 14, extinguishing powder is sucked in via a suction line (not shown) connected to the connecting piece 5 as soon as the free end of this suction line is put into an extinguishing powder storage device or a fire extinguisher filled with extinguishing powder is introduced.
  • the extinguished powder gets into it. in the separator 1 and its approach 4 and after opening one in Pipe socket 10 provided flap due to gravity flow down into a fire extinguisher to be filled.
  • the suction fan 14 draws in air from the outside via the openings 20 and 16 communicating with one another, which air firstly into the interior of the cover 15 and from there via a deflection device 19 communicating with a chamber 17 of the control slide 13 of the support member 12 into the space above the filter plate 7 and flows through this and the filter elements 6 held by it, whereby it detaches adhering extinguishing powder.
  • the detached extinguishing powder falls down into the separator attachment 4 and can later be transferred from there to a fire extinguisher to be filled.
  • a pipe socket 22 shown on the left in the drawing is fastened, the length of which is greater than the length of the individual filter elements 6.
  • a cylindrical attachment 24, which is aligned with the pipe socket 22, is fastened, in the interior of which a ball valve with a valve ball 25 is arranged.
  • the air flowing into the separator after it has passed the filter plate 7 and the filter elements 6, flows down into the pipe socket 22, flows through the reversion filter 23 arranged therein, lifts the valve ball 25, flows through the neck 24 and passes from there a communicating, radially extending opening 21 of the spool 13 to the outside.
  • each radially extending openings 20 and 21 of the spool 13 thus form the beginning and end of an air flow leading through the entire device, an opening 20 forming an inlet opening and an opening 21 forming an outlet opening.
  • the device shown in FIGS. 5 to 7 essentially consists of a separator 1, which is provided with a hood-shaped cover 26.
  • the separator 1 has, in accordance with the originally described embodiment, the shape of a circular cylinder, the lower end of which is followed by a frustoconical extension 4.
  • a connecting piece 5 is provided for a hose-shaped feed line.
  • Filter elements are also arranged in the separator 1 and are fastened to a filter plate 7.
  • the frustoconical extension 4 of the separator 1 also merges in this embodiment into a pipe socket 10, which is provided at its free end with a frustoconical mouthpiece 11.
  • the separator 1 is double-walled in its circular-cylindrical area, i. H. in this area it has an additional inner jacket 27 which is arranged concentrically with the outer jacket.
  • a ring-shaped reversion filter 28 is arranged in the lower region of the annular gap between the inner and outer jacket.
  • the reversing device has a suction fan with two connecting pieces 34, 35 and can be pivoted via a flexible shaft coupled to an adjusting wheel 36 so that its connecting piece 34, shown in the drawing in each case at the top, can be connected with the free end of one of the two to the connecting piece 29, 30 of the separator 1 attached lines 31, 32 can be brought into communication.
  • the reversing device 33 has a closure member 38 which is rigidly connected to the connecting piece 34 and which, when the connecting piece 34 communicates with the lower line 32, closes the upper line 31.
  • the suction fan of the reversing device 33 sucks air through the connecting piece 35 and the line 32 from the annular space between the inner and outer sheath of the separator 1 and presses this through the connecting piece 34 and the line 31 into the separator space above the filter plate 7 and flows through this and the filter elements 6 attached to it, with the result that extinguishing powder adhering to it dissolves and falls down into the conical extension 4 of the separator 1, from where it can then be transferred to a fire extinguisher to be filled.
  • the flexible shaft 37 is dimensioned such that the associated adjusting wheel 36 can be operated by the person carrying out the filling process without any problems.
  • the filter plate 7 has an air-impermeable edge region, shown in FIG. 5, which closes the annular gap between the inner and the outer wall of the separator 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Basic Packing Technique (AREA)
  • Cleaning In General (AREA)

Claims (12)

1. Dispositif d'inspection et de remplissage pour extincteur à poudre avec un dispositif d'inversion (13, 33), une soufflante d'aspiration (14) et un séparateur (1) qui possède un filtre pour retenir la poudre extinctrice aspirée d'un extincteur à poudre, le côté d'aspiration tout comme le côté de refoulement de la soufflante d'aspiration pouvant être connectés alternativement au côté de sortie du filtre et la direction d'écoulement de l'air pouvant être inversée en manoeuvrant le dispositif d'inversion, le séparateur (1) étant associé un filtre d'inversion (22, 28) disposé, de préférence, dans le séparateur (1) et indépendant du premier filtre (6, 7), ce filtre d'inversion permettant de filtrer l'air inversé.
2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'inversion (13, 33) peut être actionné manuellement.
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le dispositif d'inversion est disposé sur le séparateur (1) et est constitué, en particulier, d'une soupape à tiroir conçue, de préférence, comme tiroir rotatif (13) placé entre la soufflante d'aspiration (14) et le séparateur (1).
4. Dispositif selon la revendication 3, caractérisé en ce que la soupape à tiroir comporte un canal de décharge (24, 21) équipé, de préférence, d'un clapet anti-retour et allant du filtre d'inversion (23) vers l'extérieur.
5. Dispositif selon la revendication 1, dans lequel le dispositif d'inversion est disposé séparément du séparateur et est relié à celui-ci par des conduites d'air, caractérisé en ce que le dispositif d'inversion (33) comporte un organe de réglage (37, 36) mécanique pouvant être actionné, de préférence, par un arbre flexible (37) et pénétrant jusque dans la zone du séparateur (1).
6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la surface de filtration du filtre d'inversion (23, 28) est tournée vers le bas tandis que le filtre d'inversion se présente, de préférence, sous forme d'un filtre annulaire (28) et est disposé, de préférence, entre les deux parois du séparateur (1) à double paroi.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins un élément de guidage d'air est prévu pour guider l'air en dessous du ou des filtre(s) de séparateur (6, 7) vers le filtre d'inversion (23, 28).
8. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le filtre d'inversion est constitué d'une bougie filtrante (23).
9. Dispositif selon la revendication 8, caractérisé en ce que la bougie filtrante (23) est entourée d'une enveloppe (22) ouverte vers le bas, qui s'étend au moins jusqu'à l'extrémité inférieure du filtre (6) du séparateur (1).
10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le filtre d'inversion (23, 28) qui est, de préférence, un filtre fritté, peut être complété par un circuit d'air qui mène, depuis le côté de soufflage de la soufflante, en arrière à travers le séparateur (1), le filtre d'inversion (23, 28) et revient ensuite au côté d'aspiration de la soufflante.
11. Dispositif selon l'une des revendications 6 à 10, caractérisé en ce que la conduite d'inversion (31) allant du filtre d'inversion (28) vers l'élément d'inversion (33) peut être fermée quand on passe au fonctionnement normal, en particulier par le dispositif d'inversion (33), tandis qu'au filtre d'inversion (23, 28) est associé, de préférence, un clapet anti-retour qui est disposé sur le côté propre du filtre d'inversion (23, 28) opposé à la surface filtrante.
12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le filtre d'inversion (23, 28) peut être nettoyé en inversant le passage de l'air, en particulier par fermeture ralentie du clapet anti-retour (25) et par la diminution de pression ainsi créée sur le côté propre du filtre d'inversion (23, 28).
EP84103337A 1983-05-02 1984-03-27 Dispositif d'inspection et de remplissage pour extincteur à poudre Expired EP0126889B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103337T ATE39846T1 (de) 1983-05-02 1984-03-27 Ueberpruefungs- und fuellgeraet fuer pulverloescher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3315893A DE3315893A1 (de) 1983-05-02 1983-05-02 Ueberpruefungs- und fuellgeraet fuer pulverloescher
DE3315893 1983-05-02

Publications (2)

Publication Number Publication Date
EP0126889A1 EP0126889A1 (fr) 1984-12-05
EP0126889B1 true EP0126889B1 (fr) 1989-01-11

Family

ID=6197898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103337A Expired EP0126889B1 (fr) 1983-05-02 1984-03-27 Dispositif d'inspection et de remplissage pour extincteur à poudre

Country Status (4)

Country Link
US (1) US4610283A (fr)
EP (1) EP0126889B1 (fr)
AT (1) ATE39846T1 (fr)
DE (2) DE3315893A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764190A (en) * 1987-02-10 1988-08-16 Westinghouse Electric Corp. High temperature, high pressure gas filter system
GB9015873D0 (en) * 1990-07-19 1990-09-05 Plackett Trevor J Discharge testing and recycled recharging of extinguishers

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7312224U (de) * 1973-07-12 Diebold W Vulkan Werk Geschlossenes Pulver-Einfüllsystem für schwer fließende Pulver
DE7309780U (de) * 1973-09-06 Vulkan Werk Diebold W Pulver- Überprüfungs- und Füllgerät
US2628965A (en) * 1946-08-20 1953-02-17 Gen Aniline & Film Corp Preparation of olefin oxides
US3112776A (en) * 1960-05-09 1963-12-03 United Coke And Chemicals Comp Discharge and filling apparatus for fluidized solid particles
US3044908A (en) * 1961-03-15 1962-07-17 United States Steel Corp Method of unclogging powder dispenser
NL295777A (fr) * 1962-07-27 1900-01-01
DE2237740A1 (de) * 1972-08-01 1974-02-07 Geb Chevalier Ursula Fischer Einrichtung zum staubfreien entleeren und fuellen von pulver-feuerloeschern
US3963467A (en) * 1973-03-08 1976-06-15 Rolschau David W Dust filter apparatus
US3942561A (en) * 1973-03-15 1976-03-09 Vulcan-Werk Wilhelm Diebold Apparatus for filling containers with difficultly-flowable material
US3875980A (en) * 1973-05-14 1975-04-08 Melvin R Getz Extinguisher charging system
US3885932A (en) * 1974-01-10 1975-05-27 Super Products Corp Dust filtration system
DE2609135A1 (de) * 1976-03-05 1977-09-08 Fischer Geb Chevalier Ursula Zusammenlegbare, transportable einrichtung zum staubfreien fuellen und entleeren von pulver-feuerloeschern
US4083607A (en) * 1976-05-05 1978-04-11 Mott Lambert H Gas transport system for powders
US4227900A (en) * 1977-12-09 1980-10-14 Nichols John T Apparatus for filtering gas streams
US4191223A (en) * 1978-04-18 1980-03-04 Leonard Bourgeois Powder transfer system
US4182384A (en) * 1978-07-03 1980-01-08 The Protectoseal Company Fire extinguisher discharge station
US4312388A (en) * 1980-02-12 1982-01-26 Hager Charles C Dust control apparatus and method of transferring dust laden discrete solid particles
US4372713A (en) * 1980-10-03 1983-02-08 Process Control Corporation Bulk material receiver

Also Published As

Publication number Publication date
US4610283A (en) 1986-09-09
ATE39846T1 (de) 1989-01-15
DE3315893A1 (de) 1984-11-08
DE3476023D1 (en) 1989-02-16
EP0126889A1 (fr) 1984-12-05

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