EP0563801A1 - Tank - Google Patents

Tank Download PDF

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Publication number
EP0563801A1
EP0563801A1 EP93104983A EP93104983A EP0563801A1 EP 0563801 A1 EP0563801 A1 EP 0563801A1 EP 93104983 A EP93104983 A EP 93104983A EP 93104983 A EP93104983 A EP 93104983A EP 0563801 A1 EP0563801 A1 EP 0563801A1
Authority
EP
European Patent Office
Prior art keywords
tank
stop
piston
tank wall
tank according
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.)
Ceased
Application number
EP93104983A
Other languages
German (de)
English (en)
French (fr)
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.)
KRAN- und STAHLBAU GmbH
Original Assignee
KRAN- und STAHLBAU 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 KRAN- und STAHLBAU GmbH filed Critical KRAN- und STAHLBAU GmbH
Publication of EP0563801A1 publication Critical patent/EP0563801A1/de
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • 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
    • B65D88/58—Large containers characterised by means facilitating filling or emptying by displacement of walls
    • B65D88/60—Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • E01H1/103—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers in which the soiled loosening or washing liquid is removed, e.g. by suction
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a tank, in particular for a suction-pressure disposal vehicle, of the type explained in the preamble of claim 1.
  • Such a tank is known from DE-U 88 01 127.
  • the known tank has a round cross section and contains a piston inside in order to push out the sludges contained in the tank, ie liquid substances with a different high proportion of solids, through an opening provided at the rear end of the tank.
  • stops are provided in order to limit the movement of the piston towards the tank opening and in its most retracted position.
  • the stop located at the tank opening consists of a curved, segment-shaped angle profile, which is fastened to it by means of bolts which are guided through the tank wall.
  • the tank wall is welded to a sleeve piece pointing inwards and a sleeve piece aligned with it and pointing outwards to receive the bolt.
  • the sleeve piece pointing outwards is closed by a welded-on base and welded to two reinforcing flanges with the help of a bridge, which are welded on both sides of the row of bolts on the outside to the intact tank wall at this point.
  • a bridge which are welded on both sides of the row of bolts on the outside to the intact tank wall at this point.
  • fitting the sleeve parts into the curved tank wall is extremely difficult and requires both a dimensionally accurate bore in the tank wall and a dimensionally accurate alignment of the sleeve parts to one another. Still lies the stop profile only linearly on the bolt.
  • the invention is therefore based on the object of equipping a tank of the type mentioned with a robust, easy-to-produce stop which offers increased safety.
  • the stop can be supported over its entire length against the walls of the fastening groove, so that a much better distribution of the forces exerted by the piston on the stop and to be introduced into the tank wall takes place, local stress peaks such as those caused by the line contact of the Known attacks occur with the radially standing bolt, largely avoided. In this way, a considerably increased safety of the stop is achieved in a structurally extremely simple manner, even with a jerky piston.
  • the angular range for the stop according to claim 2 of preferably 270 ° with a tolerance of 30 ° up and down has proven to be particularly expedient.
  • the embodiment according to claim 3 facilitates the residual pushing out of sludge.
  • FIG. 1 the known pressure supply of a tank 1 for a disposal vehicle, not shown, can be seen.
  • the tank 1 is arranged lying on the vehicle and has a tank wall 2, a tank opening 4 that can be closed by a cover 3 and points against the direction of travel, and one inside the tank Tanks 1 arranged piston 5.
  • a suction port 6 is arranged on the cover 3, to which a suction line can be connected when the tank 1 is operating in suction mode.
  • the piston 5 divides the interior of the tank 1 into an actual loading space 7 and an overpressure and underpressure chamber 8 lying in front of the piston 5 in the direction of travel of the vehicle.
  • the overpressure and underpressure chamber is by a shut-off valve 9, a four-way switch tap 10 and a filter 11 connected to one side of a pneumatic pressure vacuum pump 12.
  • the other side of the pump 12 is returned to the four-way switch tap 10 via a check valve 13.
  • the pneumatic circuit also contains a safety valve 14 for safeguarding the working pressure when the piston is moving, a safety valve 15 for safeguarding the working pressure when the tank is operating in pressure, a maneuvering meter 16 and an exhaust silencer 17 connected to the four-way switch tap 10.
  • the loading space 7 Connected to the pneumatic circuit via a shut-off valve 18, which is opened during suction and closed to move the piston 5.
  • the piston 5 In order to expel the solids deposited in the loading chamber 7, the piston 5 is displaced in the direction of the tank opening 4 by an overpressure generated by the pump 12 in the chamber 8 until the piston 5 abuts an end stop 19 arranged on the tank opening 4. If suction is to be carried out, the piston 5 is pulled forwards from its rearmost position when viewed in the direction of travel, with the cover 3 or valve 18 open or closed, until it abuts a front stop 20. If necessary, the To reduce the loading chamber 7, an intermediate stop 21 can be provided which, analogous to the front stop 20, limits the front position of the piston 5 when the loading chamber 7 is reduced, as viewed in the direction of travel.
  • a first embodiment of a stop can be seen, which consists of a ring-shaped bar 22 with a rectangular cross-section corresponding approximately to the radius of curvature of the tank wall 2, which is detachable with about a third to half of its radial height is received in a fastening groove 23.
  • the strip 22 extends over an angular range a of at least 180 °, but preferably approximately 270 ° on the inner circumference of the tank wall 2.
  • This preferred angular range a can be exceeded or undershot by approximately 30 °, so that the preferred range of the inner circumference, the is covered by a stop, is between 240 and 300 °.
  • the remaining, stop-free area b of the inner circumference of the tank 1 is expediently arranged on the bottom of the tank so that the pushing out of the solids is not hindered.
  • the fastening groove 23 extends in a circular shape over the entire inner circumference of the tank 1.
  • the groove 23 is filled by a filler 24 which, as shown in FIG. 2, is flush with the tank wall 2 on the inner circumference of the tank 1 and from one End of the bar 22 extends to its other end, so that the filler 24 on the one hand ensures that the bar 22 maintains its predetermined position and on the other hand there are no residues in the fastening groove 23 can accumulate.
  • the strip 22 is resilient due to its construction and the choice of material, so that it can be snapped into the fastening groove 23.
  • the strip 22 can be screwed into the fastening groove 23 by screws accessible from the inside or from the outside.
  • the fastening groove 23 is machined into a flange 25 which has a greater wall thickness than the tank wall 2.
  • the flange is placed on the outside of the tank wall 2 and extends in a ring around the outer circumference of the tank 1.
  • the tank wall 2 contains a slot-shaped window 26 that is at least as wide as the fastening groove 23 is.
  • the window 26 is expediently somewhat wider, so that the flange 25 is fastened by weld seams 27 both from the outside and from the inside.
  • FIG. 2 A further possibility of fastening a flange 28 provided with the fastening groove 23 to the tank wall 2 with an increased wall thickness compared to the wall thickness of the tank wall is shown on the right-hand side of FIG. 2.
  • the flange 28 is an end flange facing the cover 3 and is provided on its end face with a sealing surface 29 for the lid.
  • the flange 28 is butt welded to the end face of the tank wall 2 with a weld seam 30, the inner surface of the annular flange 28 being flush with the inner surface of the tank wall 2.
  • the stop consists of a plurality of sub-segments 31a and 31b, which are arranged distributed over the entire inner circumference of the tank 1 and by spaced fillers 32a, 32b, which completely fill the fastening groove 23 and are flush with the inner surface of the flange 28 are held to each other.
  • the subsegments 31a, 31b and the filler pieces 32a, 32b are held in the fastening groove 23 by screws, not shown.
  • one of the filler pieces 32b is preferably located on the tank bottom, while the total length of the sub-segments can extend over the angular range already described.
  • the stops are expediently made of steel, which should not be sparking when the tank is filled with flammable liquids or with liquids which outgass combustible gases.
  • the stops can also consist of a plastic of suitable strength or at least be coated or clad with non-sparking material on their surface facing the piston.
  • the flange of FIG. 3 can be equipped with a stop consisting of partial segments, and the stop according to FIG. 2, right-hand side, can be a continuous bar or used for fastening a front stop or an intermediate stop, the flange being direct is inserted into the tank wall.
  • the subsegments of a split plot can still be placed directly next to each other so that there is a continuous stop. This is particularly advantageous if a stop is to extend over the entire inner circumference, ie over a full 360 °. If the tank wall has a sufficiently large wall thickness, fastening grooves can be worked directly into the tank wall.
  • the flanges placed on the outside of the tank wall can be composed of sub-segments.
  • the configuration and arrangement of the claims according to the invention is not only limited to the piston drive described and drawn, but can also be used, for example, when the piston is pushed or dragged by hydraulic cylinders.
  • the stops according to the invention can also be used in stationary tanks. For certain applications, it can be advantageous to generate deformations (crumple zones) in a targeted manner for energy consumption and for braking the piston. This is achieved in a particularly simple manner by cams which are arranged (preferably) on the stop ring or on the piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sewage (AREA)
EP93104983A 1992-03-31 1993-03-25 Tank Ceased EP0563801A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9204380U 1992-03-31
DE9204380U DE9204380U1 (de) 1992-03-31 1992-03-31 Tank

Publications (1)

Publication Number Publication Date
EP0563801A1 true EP0563801A1 (de) 1993-10-06

Family

ID=6877945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104983A Ceased EP0563801A1 (de) 1992-03-31 1993-03-25 Tank

Country Status (2)

Country Link
EP (1) EP0563801A1 (zh)
DE (1) DE9204380U1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1006881C2 (nl) * 1997-08-29 1999-03-02 Sander Stefan Kemner Pneumatische vuilnis- en transportwagen.
EP1732364A2 (de) 2005-06-10 2006-12-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung und Verfahren zur netzspannungsabhängigen Leistungsregelung eines elektronischen Geräts, insbesondere eines elektronischen Vorschaltgeräts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801127U1 (de) * 1988-01-30 1988-03-24 Müller Umwelttechnik GmbH & Co KG, 32816 Schieder-Schwalenberg Zylindrischer Schlammabfuhrbehälter eines Reinigungsfahrzeuges

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626137A1 (de) * 1986-08-01 1988-02-11 Gottfried Kutschke Saug-druckbehaelter zur aufnahme von mit schlaemmen versetzten fluessigkeiten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801127U1 (de) * 1988-01-30 1988-03-24 Müller Umwelttechnik GmbH & Co KG, 32816 Schieder-Schwalenberg Zylindrischer Schlammabfuhrbehälter eines Reinigungsfahrzeuges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1006881C2 (nl) * 1997-08-29 1999-03-02 Sander Stefan Kemner Pneumatische vuilnis- en transportwagen.
EP1732364A2 (de) 2005-06-10 2006-12-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung und Verfahren zur netzspannungsabhängigen Leistungsregelung eines elektronischen Geräts, insbesondere eines elektronischen Vorschaltgeräts

Also Published As

Publication number Publication date
DE9204380U1 (de) 1993-08-12

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