EP0022456A1 - Dispositif pour aspirer des matières nuisibles sous forme solide, liquide ou gazeuse, en particulier des gaz d'échappement de moteurs à combustion - Google Patents

Dispositif pour aspirer des matières nuisibles sous forme solide, liquide ou gazeuse, en particulier des gaz d'échappement de moteurs à combustion Download PDF

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Publication number
EP0022456A1
EP0022456A1 EP80102546A EP80102546A EP0022456A1 EP 0022456 A1 EP0022456 A1 EP 0022456A1 EP 80102546 A EP80102546 A EP 80102546A EP 80102546 A EP80102546 A EP 80102546A EP 0022456 A1 EP0022456 A1 EP 0022456A1
Authority
EP
European Patent Office
Prior art keywords
suction
hose
link elements
elements
sealing
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.)
Granted
Application number
EP80102546A
Other languages
German (de)
English (en)
Other versions
EP0022456B1 (fr
Inventor
Horst Ludscheidt
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.)
Ludscheidt KG Te Dortmund Bondsrepubliek Duitslan
Original Assignee
Ludscheidt Horst
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 DE2928519A external-priority patent/DE2928519C2/de
Priority claimed from DE19803015129 external-priority patent/DE3015129A1/de
Application filed by Ludscheidt Horst filed Critical Ludscheidt Horst
Priority to AT80102546T priority Critical patent/ATE1269T1/de
Publication of EP0022456A1 publication Critical patent/EP0022456A1/fr
Application granted granted Critical
Publication of EP0022456B1 publication Critical patent/EP0022456B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
    • B08B15/005—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops comprising a stationary main duct with one or more branch units, the branch units being freely movable along a sealed longitudinal slit in the main duct

Definitions

  • the invention relates to a device for extracting solid and / or liquid and / or gaseous pollutants, in particular exhaust gases from internal combustion engines, with a stationary extraction duct with a hose carriage with an exhaust hose arranged movably thereon, the hose carriages having areas in the suction duct engage a suction slit provided with sealing elements and the sealing elements can be moved by the hose trolley from a position sealing the suction slit into a position releasing the suction slit.
  • Known devices of this type are generally used in car workshops or vehicle depots and consist of suction channels that are installed in the area of the hall ceiling and are connected to an exhaust air blower Have rail on which hose cars are arranged to be movable.
  • the underside of the suction ducts which allows the hose trolleys to pass through is designed as a suction slot which is sealed off by sealing lips which are at an angle to one another, the sealing lips being moved apart when the suction trolley is moving and should cling to one another again after passing through the suction trolley.
  • Devices of this type have the particular disadvantage that, after prolonged use, the rubber-like ones Fatigue material existing sealing lips and the sealing effect is lost, so that the exhaust fan draws more and more external air over time, so that the system is ineffective.
  • the sealing lips are generally only heat-resistant to a very limited extent, so the systems are not suitable for high-performance test benches or the like.
  • the known devices have the disadvantage that the sealing lips no longer close completely in the case of spatially very closely spaced hose trolleys between the hose trolleys, so that an insufficient amount of external air is sucked in even if the sealing lips are intact.
  • the object of the invention is to provide a solution with which, with economic means, a device is created which is also particularly suitable for use at very high pollutant temperatures, the suction channel seal not being subject to wear and a very dense sequence of hose trolleys being made possible.
  • this object is achieved according to the invention in that the sealing elements of the suction slot are designed as interconnected link elements made of heat-resistant material and guided on the suction channel.
  • the seal is made by interconnected link elements which, depending on the design, can be produced from the appropriate materials, but which not only have to have pure sealing functions, but also have to ensure the mobility of the entire seal.
  • the link elements are connected to one another in their longitudinal direction, and in a further embodiment it can be provided that a longitudinal end face of the link element is designed to engage behind the corresponding end area of the adjacent element. This design enables a suction slot cover, which practically completely prevents the inflow of outside air.
  • the link elements are each equipped with a roller which can be acted upon by a link surface on the hose trolley.
  • This roller is so be part of the hose cart opens up that the individual link elements rise and lower when a hose cart drives past to release its suction opening.
  • the invention also provides that the hose trolley is equipped with a guide rail for positively guiding the rollers on the link elements.
  • This guide rail can be designed as a single component, but it can also be designed as an integrated component of a covering surface of the tubular hose protruding toward the interior of the channel, in which the rollers on the link elements engage.
  • the link elements are designed on their foot side so that they only lie in the closed position with a small area in their guide profile, which is expediently done by chamfering the underside, so that a corresponding link element lines or point contact has what causes skew u. Like. Is avoided.
  • the invention is particularly suitable for the endless guidance of hose carts, which is advantageous, for example, on test benches of technical monitoring associations or on other production or test lines in which the vehicle to be tested is in one direction in a test retracts road and leaves it on the other side, so that the hose carts carried can be clamped into the corresponding road at the entrance of the vehicle, carried with the vehicle and then freely guided back to the starting point after leaving the suction channel.
  • the invention provides that, in order to fix the link elements in the channel, at least the link elements arranged at the channel entrance or exit are equipped with a guide, whereby it may be expedient to design the guide as a guide rod engaging in the cavity of the hollow profiled link element .
  • the invention provides that the sealing elements of the suction slot are designed as link elements made of heat-resistant material and articulatedly connected to one another on the suction channel.
  • the suction slot on each side of the suction channel, for example, as in the prior art on the underside, and to form the sealing elements from two chains of link elements, which may be moved against the spring force by the hose trolley.
  • the invention provides in an embodiment that the suction slot in a lateral substantially vertical th wall of the suction channel is arranged. This design has the advantage that only a chain of link elements needs to be used for sealing the suction channel, which is passed under by elements on the hose trolley and raised against the direction of gravity.
  • the invention provides for this that the hose trolley is provided with a suction nozzle protruding into the interior of the hose channel for displacing the link elements.
  • the suction nozzle is provided with means that reduce the friction with respect to the link elements.
  • these means can either be formed from a plurality of small rollers arranged on the suction nozzle in the corresponding areas or else from a running chain rotatably arranged at the suction nozzle.
  • the invention is not limited to these special friction-reducing agents.
  • plastic plain bearings or the like can be provided here, for example, or the suction nozzle protruding into the interior of the suction channel can itself be rotatably mounted in the outer part of the hose carriage.
  • the link elements are designed as essentially circular plates which are connected to one another in an articulated manner and are displaceably arranged in guide elements of the suction channel.
  • the circular shape of the link elements favors the flexibility and thus the easy lifting of the sealing system, particularly when, as the invention also provides, the suction nozzle is approximately circular in cross-section.
  • the invention provides that the link elements are equipped as hingedly connected, displaceably arranged in guide elements of the suction channel, essentially beaver tail-shaped plates, an embodiment which is particularly advantageous in the case of a circular suction nozzle.
  • the device according to the invention can also be used, in particular, in test systems of the technical monitoring associations, in which case the tube wagons must then be able to circulate.
  • the link elements are elastically supported on both sides at the end of the suction channel are. This elastic mounting, which can be brought about, for example, by spiral spring elements or the like, causes the system to spring back each time a hose cart is retracted.
  • the hose trolley is provided with a sealing disk which can be moved parallel to the suction slot and which covers openings resulting from the lifting of the link elements, the suction nozzle being guided through this sealing disk.
  • This sealing washer prevents the inflow of outside air, so that the full suction power of the system remains independent of the position of the hose trolley.
  • the sealing disk has bearings for receiving the rollers of the hose carriage.
  • the link elements are in the top and bottom Guided profiles that have such a size that the non-overlapping areas of adjacent link elements are covered by profile webs.
  • the invention expediently provides here that the guide profiles for the link elements and the associated rails for the hose trolleys are each formed by an upper and lower profile attached to the suction channel.
  • the suction channel itself can be made of sheet steel or the like, while the guide and running profiles are made of aluminum or the like.
  • the ends of the suction channel are equipped with an inlet and outlet chamber for extending and retracting the hose trolley into the suction channel.
  • the suction channel from aluminum profiles, which can be attached to one another by means of clamping profiles that can be assembled to form the channel.
  • This design of individual profiles, which can be joined together with clamping profiles without other aids, enables very rapid and expedient production. It is possible, for example, to have the chamber profiles forming the rear wall available in different U-shaped dimensions depending on the desired cross-sectional size and, depending on the desired product, with different channel crossings with the same profiled carriage and sectional element guide profiles cuts are to be created.
  • the device for the extraction of pollutants essentially consists of an extraction duct 2 with an essentially rectangular cross section, which is mounted, for example, in the area of the workshop ceiling of an auto repair workshop and is connected to an exhaust air blower 4 via an intake opening 3.
  • the suction channel 2 is equipped with a suction slit 6, which is closed by essentially circular link elements 7 or essentially beaver-tail link elements 8 (FIG. 4).
  • the disk-shaped link elements 7 and 8 are mutually overlapping and rotatably connected to each other at 9 and 9 ', for example by means of a rivet or the like, the link elements being made from metal or asbestos cement or another heat-resistant material.
  • the vertical side wall 5 is profiled in the manner shown in FIGS. 1 and 2, ie there are two short guide webs 10 on its bottom, while in the Head area two long.
  • Guide webs 11 are provided, in which the link elements, as can be seen in particular from FIGS. 3 and 4, can be raised to such an extent that a suction nozzle 12 or 12 'can be moved beneath them, as will be described in more detail below will be.
  • an outward and upward running rail 13 is integrally formed in the lower region or in the upper region of the wall 5 an outward and downward running rail 14.
  • Rollers 16 arranged in bearing blocks 15 run on the running rails 13 and 14 (FIG. 2).
  • the bearing blocks 15 are fastened to a sealing disk 17 which can be displaced in the plane of the vertical wall 5 via the rollers 16, the suction connector 12 or 12 'being guided through the sealing disk 17 into the interior of the suction channel 2, as can be seen in FIG. 2 .
  • the part of the suction nozzle 12 which projects into the interior of the suction duct 2 and which, in the position of use, lies against the edges of the link elements 7 and 8 is provided with friction-reducing elements, for example with small rollers 18 (FIG. 2) or with one not shown in detail Chain 19 (Fig. 4).
  • the suction nozzle 12 itself can have a substantially cross-sectional circular segment shape or as shown in Fig. 4, circular. It leads, for example, via a collecting chamber 20 (FIG. 1) or a pipe elbow 21 (FIG. 2) to an exhaust gas hose 22, which is only shown in the drawing and which, in the case of use in cars or trucks, can be connected to the exhaust of the respective internal combustion engine.
  • Fig. 3 it is also shown that the link elements 7 and 8 are each held elastically at the end of the suction channel 2, for example via a spring 24 indicated there by dash-dotted lines in Fig. 2 further shows that the rails 13 and 14th can be led out over the suction channel and can optionally be guided to the other side in the form of a loop, so that a continuous passage through the suction channel 2 of several hose cars (generally designated 23 in FIG. 1) is possible.
  • the mode of operation of the device is as follows: if, for example, a hose trolley 23 in FIG. 3 is fed to the suction channel 2 from the left, the first of the link elements 7 is raised slightly by the leading edge on the suction nozzle 12 and moved upward within the webs 11. The further retraction of the tubular carriage 23 requires a further lifting of a link element and, due to the coupling of adjacent link elements to one another, also the lifting of adjacent link elements. The individual positions are shown in dashed lines in FIG. 1, as well as in FIGS. 3 and 4.
  • the end faces of the suction channel 2 can be closed, which is not shown in detail, whereby only the cutouts which allow the suction nozzle 12 to enter or exit, for example with brushes or the like, are closed, but this is also not shown in more detail.
  • FIGS. 5-7 A further exemplary embodiment of the invention is shown in FIGS. 5-7.
  • the same elements as in FIGS. 1-4 are provided with the same, deleted reference numerals.
  • the link elements 7 ' are mutually interlocking with a dovetail-shaped longitudinal side 28 on the one hand and a longitudinal bead 29 engaging therein, on the other hand, in a longitudinally displaceable manner, as can be seen in particular from FIG. 6, the link elements being made from metal, asbestos cement or another heat-resistant material are. In the example shown, these are aluminum hollow profiles.
  • the vertical side wall 5' is profiled in the manner shown in FIG. At its bottom there are two short guide webs 10 ', while in the head region two long guide webs 11' are provided, in which the link elements, as can be seen in particular from FIG. 7, can be raised so far that a suction nozzle 12 'is moved behind them can be.
  • an outward and upward running rail 13' is integrally formed in one piece in the lower region or upper region of the wall 5 ', an essentially C-shaped running rail 14'.
  • a hose carriage 23 ' is slidably guided with the aid of running rollers and guide rollers, which is not shown in more detail.
  • the Hose trolley 23 ' has a sealing washer 17' with which a guide washer 30 is connected in the interior of the suction channel and is equipped with a guide rail 31.
  • each link element 7 ' is provided with a possibly roller-mounted roller 32 which is directed towards the interior of the channel 2'. If the hose carriage 23 'and thus the guide disk 30 are displaced in the interior of the channel, the rollers 32 come into engagement with the guide rail 31 one after the other and, by virtue of their positive guidance, bring about the raising and lowering of the laterally guided link elements 7' in the direction shown in FIG of the double arrow 33 in Fig. 7.
  • the link elements 7 ' are angular in the lower region, so that a support region 34 is formed as a tip.
  • the last link element 7 "in each case is held on the suction channel with a guide rod 35 such that it can move in the direction of the double arrow 33, but prevents displacement in the direction of the travel movement of the hose carriage 23 '.
  • sealing rollers 36 are provided on the sealing disk 17 'in the example shown, the width of which corresponds to the width of the suction slot 6 'corresponds.
  • Fig. 5 it is also shown that the entire channel 3 'is formed from individual profiles, the size of the rear wall profile 37, which can be adapted to the respective requirements, possibly made of aluminum sheet, via clamping profiles 38 on the rail profiles 39 and / or the same in all designs 40 can be determined.
  • the suction channel can be equipped with inlet and outlet locks 41, which allow an endless movement of several hose trolleys, which is not shown in more detail.
  • the described embodiments are still alter in many ways, without departing from the spirit of the g rfindung.
  • the invention is in particular not limited to the selected suspension of the hose cart and also not to a special shape of the link elements.
  • two rows of spring-loaded rows of link elements can be used for sealing the suction channel even when the suction slot is arranged horizontally.
  • This variant also allows the suction channel to be laid in the floor.
  • the invention is also not limited to the dovetailed / bead connection of the individual elements shown. Here's every kind of includes the longitudinal displaceability of the sealing lamella connection.

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  • Cleaning In General (AREA)
EP80102546A 1979-07-14 1980-05-09 Dispositif pour aspirer des matières nuisibles sous forme solide, liquide ou gazeuse, en particulier des gaz d'échappement de moteurs à combustion Expired EP0022456B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102546T ATE1269T1 (de) 1979-07-14 1980-05-09 Vorrichtung zum absaugen von festen und/oder fluessigen und/oder gasfoermigen schadstoffen, insbesondere von abgasen aus verbrennungsmotoren.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2928519 1979-07-14
DE2928519A DE2928519C2 (de) 1979-07-14 1979-07-14 Vorrichtung zum Absaugen von festen und/oder flüssigen und/oder gasförmigen Schadstoffen
DE19803015129 DE3015129A1 (de) 1980-04-19 1980-04-19 Vorrichtung zum absaugen von schadstoffen, insbesondere von abgasen
DE3015129 1980-04-19

Publications (2)

Publication Number Publication Date
EP0022456A1 true EP0022456A1 (fr) 1981-01-21
EP0022456B1 EP0022456B1 (fr) 1982-06-30

Family

ID=25779979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102546A Expired EP0022456B1 (fr) 1979-07-14 1980-05-09 Dispositif pour aspirer des matières nuisibles sous forme solide, liquide ou gazeuse, en particulier des gaz d'échappement de moteurs à combustion

Country Status (3)

Country Link
EP (1) EP0022456B1 (fr)
DE (1) DE3060616D1 (fr)
DK (1) DK150680C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533997A1 (fr) * 1982-10-05 1984-04-06 Nederman Bill Dispositif d'aspiration des gaz d'echappement degages par les vehicules a tuyaux d'echappement verticaux
EP3770083A1 (fr) * 2019-07-23 2021-01-27 J. Schmalz GmbH Dispositif d'alimentation sous vide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604085A1 (de) * 1985-08-24 1987-02-26 Ewald Ibens Vorrichtung zum absaugen von schadstoffen
DE102011050749B4 (de) 2011-05-31 2016-02-18 TRUMPF Maschinen Grüsch AG Bearbeitungsmaschine, Reststoffentfernungsvorrichtung für die Bearbeitungsmaschine, und Verfahren zur Reststoffentfernung in der Bearbeitungsmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478668A (en) * 1968-05-29 1969-11-18 Hawley Manufacturing Corp Traveling aspirator system with valving means
FR2137196A1 (fr) * 1971-05-07 1972-12-29 Neu Sa
GB1516931A (en) * 1976-01-21 1978-07-05 Regese B Exhaust-gas extracting arrangements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478668A (en) * 1968-05-29 1969-11-18 Hawley Manufacturing Corp Traveling aspirator system with valving means
FR2137196A1 (fr) * 1971-05-07 1972-12-29 Neu Sa
GB1516931A (en) * 1976-01-21 1978-07-05 Regese B Exhaust-gas extracting arrangements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533997A1 (fr) * 1982-10-05 1984-04-06 Nederman Bill Dispositif d'aspiration des gaz d'echappement degages par les vehicules a tuyaux d'echappement verticaux
GB2128323A (en) * 1982-10-05 1984-04-26 Nederman Bill P Ph Device for extracting exhaust gases from vehicles having upwardly directed exhaust pipes
EP3770083A1 (fr) * 2019-07-23 2021-01-27 J. Schmalz GmbH Dispositif d'alimentation sous vide

Also Published As

Publication number Publication date
DK150680B (da) 1987-05-25
DK150680C (da) 1988-01-25
DK292080A (da) 1981-01-15
DE3060616D1 (en) 1982-08-19
EP0022456B1 (fr) 1982-06-30

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