WO2004090395A1 - Dispositif pour ouvrir un clapet, notamment un clapet d'entree d'air ou un clapet de sortie de gaz d'un reservoir de fermentation ou de decomposition - Google Patents

Dispositif pour ouvrir un clapet, notamment un clapet d'entree d'air ou un clapet de sortie de gaz d'un reservoir de fermentation ou de decomposition Download PDF

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Publication number
WO2004090395A1
WO2004090395A1 PCT/EP2004/002787 EP2004002787W WO2004090395A1 WO 2004090395 A1 WO2004090395 A1 WO 2004090395A1 EP 2004002787 W EP2004002787 W EP 2004002787W WO 2004090395 A1 WO2004090395 A1 WO 2004090395A1
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WO
WIPO (PCT)
Prior art keywords
valve
container
working medium
fermentation
connecting element
Prior art date
Application number
PCT/EP2004/002787
Other languages
German (de)
English (en)
Inventor
Xaver Lipp
Original Assignee
Xaver Lipp
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 DE2003118310 external-priority patent/DE10318310A1/de
Application filed by Xaver Lipp filed Critical Xaver Lipp
Publication of WO2004090395A1 publication Critical patent/WO2004090395A1/fr

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Classifications

    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • 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
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures

Definitions

  • Device for opening a valve in particular an air inlet valve or gas outlet valve of a fermentation or digester
  • the invention relates to a device for opening a valve according to the preamble of claim 1, in particular an air inlet valve or gas outlet valve of a fermentation or fermentation tank, and a fermentation or fermentation tank with such a device.
  • the resulting gas is generally extracted without pressure.
  • the gas pressure building up in the interior of the container must not exceed a predetermined and relatively low value.
  • gas drain valves are to be provided, as are known for example from DE 44 22 540 A1.
  • the gas pressure acts directly on the valve body and an overpressure that occurs actuates the valve. So that the valve responds reliably even with small pressure differences, the weight of the valve body must be balanced by a compensation device. Therefore, the valve closing force is relatively small.
  • the valve is therefore followed by a type of siphon, which has a liquid seal that determines the discharge pressure, usually a water seal. The required water level must be checked to ensure the functional safety of the gas discharge valve.
  • the invention is based on the problem of providing a device which overcomes the disadvantages of the prior art. In particular, a device is to be provided which preferably compensates for both an overpressure and a vacuum in the container.
  • the device should preferably already respond to small pressure differences in the range of one or a few hPa.
  • the closing force of the valve should preferably be independent of the pressure difference that occurs between the interior of the container and the surroundings.
  • the gas emerging from the container in the event of overpressure which is generally combustible, should be able to be removed without the operational safety of the container being impaired.
  • the problem is with a device for opening a valve of a container, in particular an air inlet valve or gas outlet valve of a fermentation or digester, the valve being connected to the interior of the container and being operable when the pressure in the interior of the container changes from the ambient pressure, solved in that the valve can be actuated by a separate working means, which has a working space connected to the interior of the container and variable in accordance with the pressure differences that occur, that the working space is sealed off from the environment, and that a gas inlet opening and / or a gas outlet opening of the valve is arranged on or above a lower edge of a roof of the container.
  • the work equipment can be designed as lifting or swiveling work equipment, for example as a lifting cylinder or rotary cylinder.
  • Gas outlet opening ensures that the escaping gas evaporates quickly, so that self-ignition of the escaping gas by means of equipment or other influences arranged on the container or in the vicinity thereof is reliably excluded.
  • Gas inlet opening and gas outlet opening can be formed together, for example, by the end of a pipe socket extending upwards outside the container.
  • the pipe socket can, for example, form a valve seat with a closure plate as the valve body.
  • the valve itself in particular the valve body and the valve seat, can be arranged at a distance from the gas inlet opening, in particular at substantially the same height as the working medium.
  • the valve is preferably arranged within a space which is at least partially closed off from the surroundings, for example in a valve box which is partially or completely closed and which also receives the working fluid and from which the pipe socket emerges at the top can. This protects the valve from the weather.
  • the room can be tempered, in particular have thermal insulation from the surroundings and / or be heated indirectly from the fermentation tank or the pipe connection to the fermentation tank.
  • the working medium is preferably arranged on a branch nozzle of the pipe socket and the working space of the working medium is connected to the interior of the pipe socket.
  • the valve is preferably coupled to the working medium by means of a coupling device.
  • This can provide a coupling to the valve only in one or in both directions of movement of the working medium, in particular the coupling can realize a free-running in one direction of movement of the working medium.
  • the coupling device is preferably implemented by one or more pivotable levers or by an eccentric disk.
  • the valve is generally actuated by an essentially translatory movement of the valve body.
  • the actuating force of the valve can be determined and, if necessary, also adjusted by an appropriate choice of the effective lever length and / or by the choice of the working surface of the working medium.
  • a large path of the working medium can be achieved by selecting a correspondingly large lever arm, even with small and very small pressure differences, a large actuating force with which even high valve closure forces can be overcome.
  • a compensation device is preferably provided for the weight forces acting on the working medium, but not for the weight force of the valve body.
  • the working means is articulated at a first position on a first actuating arm, which is articulated at a second position about a first, preferably fixed, point, and the first actuating arm is at a third position with the valve through connected first connecting element which transmits an actuating force to the valve substantially only in a first direction of movement of the working medium.
  • the pressure differences that occur can be either an overpressure or a vacuum.
  • the device according to the invention can respond either only to an overpressure, only to an underpressure, or to both an overpressure and an underpressure.
  • Overpressure can occur, for example, due to insufficient gas extraction from the interior of the container.
  • a negative pressure can occur, for example, due to a lowering of the temperature of the contents of the fermentation or digester.
  • the fermentation or digestion tank generally has a solid and preferably cylindrical wall, which can be filled with liquid and / or more or less solid digestion material up to a predeterminable fill level. Above the digestion material, the digestion gas that is collected collects in a gas space, which is either delimited by the solid wall of the container or is delimited by a membrane arranged inside the container.
  • the choice of the third position can determine in which direction of movement of the working medium an opening of the valve he follows.
  • the first connecting element which essentially only transmits tensile forces, is formed by a flexible connecting element, for example a rope.
  • connection elements which, due to their attachment to the first actuating arm and / or to the valve, transmit an actuating force from the actuating arm to the valve only in one direction, for example by means of freewheel elements, drivers and the like.
  • a second actuating arm is also articulated to the working medium at a fourth position, rotatably articulated about a second point at a fifth position, and connected to the valve at a sixth position by a second connecting element, which is essentially only in a second direction of movement of the working fluid transmits an actuating force to the valve.
  • the first actuating arm can open the valve in the event of overpressure in the container
  • the second actuating arm can open the valve in the event of negative pressure.
  • the response pressure of the valve can be adjusted by changing the length of the connecting element, which essentially only transfers the movement of the working medium to the valve in one direction.
  • response pressures of less than one hPa can be set reliably and reproducibly.
  • the change in length refers to a change in the effective length and can, for example, also be positioned accordingly Force or positive locking to the valve-providing stop means can be realized.
  • a balance weight is attached to a section of the second actuating arm which is opposite the fourth position with respect to the fifth position. This enables the actuation arm to be tared.
  • the balance weight is preferably displaceable and fixable on the section.
  • the first actuating arm can also have such a counterweight.
  • the valve In the closed initial state, the valve is loaded with force, the load being preferably essentially independent of a pressure difference between the interior of the container and the surroundings. More preferably, the force load is provided by the weight of the valve body. If necessary, this can be increased by placing additional weights.
  • the valve is preferably formed by a pipe socket as a valve seat and a closure plate, in particular resting on the end face of the pipe socket, as a valve body.
  • the working medium is preferably a bellows or cylinder.
  • the invention also relates to a fermentation or digester with an inventive device for opening a valve, the
  • Valve control device is preferably attachable to the outside of the fermentation or digester above a liquid level.
  • the valve control device can be connected in a sealed and preferably detachable manner to the interior of the container by means of a pipe flange arranged on the fermentation or digester.
  • the actuation arms can be articulated at the fixed point either on a wall of the fermentation or digester, or on the valve control device itself.
  • FIG. 1 shows a schematic cross section through a fermentation tank with a device according to the invention
  • Fig. 2 shows a more detailed section of the invention
  • Fig. 4 shows the device according to the invention in the state of a
  • FIG. 5 shows the device of Figs. 3 and 4 in plan view
  • Fig. 6 shows a second embodiment of the device according to the invention
  • Fig. 7 shows a third embodiment of the invention
  • FIG. 8 shows a plan view of the third embodiment of FIG. 7, 9 shows a fourth embodiment of the invention
  • Fig. 10 shows a fifth embodiment of the invention
  • Fig. 1 1 shows a plan view of the fifth embodiment of Fig. 10, Fig. 12 shows a sixth embodiment of the invention
  • Fig. 1 1 shows a plan view of the sixth embodiment of the
  • the fermentation tank 2 has a substantially circular cylindrical fixed wall 4 and a roof 70, and the interior of the fermentation tank 2 is filled with liquid manure, sewage sludge or the like up to a liquid level 5.
  • the fermentation gas 7, in particular methane, that collects above the liquid level is closed off at the top by a gas-tight membrane 8.
  • the gas extraction takes place at the gas extraction nozzle 9.
  • the device 1 according to the invention is detachably fixed on the wall 4
  • a bellows-like working medium 10 with a working space 20 is connected to the interior 6.
  • the first actuating arm 13 is articulated on the working means 10 at a first position 12.
  • the first actuating arm 13 is rotatably articulated at a second position 14 at a first fixed point and pivots about this fixed point according to the arrow 15 in the event of a lifting movement of the working medium 10.
  • the first actuating arm 1 3 is connected to the valve 3 by a first connecting element 1 7, in particular to the closure plate 18, which, as a valve body, lies tightly on the pipe socket 19 designed as a valve seat.
  • the pipe socket 19 can, in deviation from the illustrations of the first to fourth exemplary embodiments in FIGS. 1 to 9, be guided further up to a lower edge of the roof 70.
  • the first connecting element 1 7 is designed in the illustrated embodiment as a slack rope.
  • a first coupling device 21 is formed by the first actuating arm 13 and the first connecting element 17, the support of which is at the second position 14.
  • the first actuating arm 13 pivots counterclockwise about the second position 14.
  • the first connecting element 17 tightens and when the first actuating arm 13 is pivoted further, the valve 3 opens and the gas 7 flows away. This reliably prevents the occurrence of a dangerous excess pressure in the interior 6.
  • a second actuating arm 23 is articulated on the working means 10 at a fourth position 22, which is articulated at a fifth position 24 so as to be rotatable about a second point.
  • a second connecting element 27 is connected to the second actuating arm 23 at a sixth position 26, with which, when the working medium 10 is moved downwards, as a result of a negative pressure arising in the interior 6 due to a Swiveling the second actuating arm 23 clockwise the valve 3 is opened. This reliably prevents the occurrence of a dangerous negative pressure in the interior 6.
  • FIG. 2 shows a more detailed section of the device 1 according to the invention when the valve 3 is closed.
  • the entire device 1 is preferably protected in a housing box 31 which is not gas-tight but can be closed by a pivotable flap 30.
  • the bellows-like working medium 10 is guided in the lifting direction along a guide 32 and the lifting movement is limited by a mechanical stop 33, which can be formed, for example, by corresponding angle profiles against which a closure plate 34 of the working medium 10 comes into contact.
  • a connecting rod 35 is preferably attached centrally to the closure plate 34 and has a joint point for the first actuating arm 13 and the second actuating arm 23 at their first position 12 and fourth position 22 at a section remote from the closure plate 34. 1, it can be seen in FIG. 2 that the first and second actuating arms 13, 23 are articulated at the first and fourth positions 12, 22 on a common bearing block 44 (FIG. 5).
  • the two connecting elements 17, 27 are arranged one behind the other.
  • two weight plates are placed, which determine the closing force of the valve 3.
  • the first actuating arm 13 is rotatable about a bearing block 40 fixed to the wall 4, but is articulated in a stationary manner.
  • the second actuating arm 23 is rotatably articulated at the fifth position 24 on a type of toggle lever 41 which is rotatably but fixedly articulated at its other end.
  • FIG. 3 shows the device according to the invention in the state of excess pressure in the interior 6. Accordingly, the working medium 10 moves in the direction of the arrow 11, whereupon the second actuating arm 23 rotates counterclockwise about the fifth position 24 along the arrow 25 and the second connecting element 27 sagging slack. In contrast, the first actuating arm 13 rotates about the second position 14 according to the arrow 15 in
  • a balance weight 43 of a compensation device 29 is attached to the section 42 of the second actuating arm 23, which is opposite the fourth position 22 with respect to the fifth position 24, that along the section 42 is movable and lockable.
  • the second actuating arm 23 can be tared, in particular the torque caused by the working means 10 on the two actuating arms 13, 23 can be compensated.
  • 4 shows the device 1 in a state in which there is a negative pressure in the interior 6.
  • the working means 10 thereby moves in the direction of arrow 11, whereby the first actuating arm 13 rotates clockwise about the second position 14 in the direction of arrow 15 and the first connecting element 17 sags saggingly.
  • the second actuating element 23 pivots about the fifth position 24 in the direction of arrow 25 in a clockwise direction and the second connecting element 27 lifts the closure plate 18 from the pipe socket 19 and thus opens the valve 3, so that ambient air into the device 1 and thus into the Interior 6 can flow and ensures the necessary pressure equalization.
  • Fig. 5 shows the device of Figs. 3 and 4 in plan view.
  • the closure plate 34 of the working medium 10 is circular.
  • the first and second actuating arms 1 3, 23 are hinged to the common bearing block 44.
  • the closure plate 18 of the valve 3 is also circular.
  • the balance weight 43 is detachably fixable on the section 42 of the second actuating arm 23 by means of the locking screw 45.
  • FIG. 6 shows a second exemplary embodiment of the device 101 according to the invention.
  • the device 101 is arranged entirely on a separate pipe socket 146, including the fixed point for the articulation of the first actuating arm 113 at the second position 114.
  • the associated bearing point is formed by a carrier 147 placed on the pipe socket 146.
  • the pipe socket 146 Spaced from the working medium 110, the pipe socket 146 has a flange 148 with which the device 101 can be detachably and tightly attached to the fermentation tank 2 (not shown).
  • the pipe socket 146 is cut open in the area of the drive means 110 and the drive means 110 is placed on the horizontally running cutting surface 149.
  • the fifth position 124 which forms the fulcrum and bearing point for the second actuating arm 123, is formed by a further carrier 151, which is fixed to the vertical cut surface 150 of the pipe socket 146.
  • FIG. 7 shows a third exemplary embodiment of the device 201 according to the invention.
  • a first limp rope 252 is fastened to the connecting rod 235 at a lower end, which is guided over a first deflecting roller 255 and a second deflecting roller 256 and is fastened to the closure plate 218 of the valve 203.
  • a second slack rope 254 is fastened to the connecting rod 235 at an upper end, which is guided over a third deflection roller 257 and a sixth deflection roller 260 and is also fastened to the closure plate 218 of the valve 203.
  • the second rope 254 also rises with the connecting rod 235 and the valve 203 is thus opened; in this case, the first rope 252 sags saggingly.
  • the first cable 252 also lowers and the valve 203 is thus opened; in this case, the second rope 254 sags saggingly.
  • a third rope 253 is also fastened as part of a compensation device 229 to the lower end of the connecting rod 235 and guided over the first roller 255 and a fourth roller 258 and connected to the counterweight 243, with which the weight forces acting on the moving parts of the working medium 210 are in any case partially be compensated.
  • a fifth roller 259 serves as a pressure roller or support roller for the first and / or third roller 255, 257.
  • FIG. 8 shows a top view of the third exemplary embodiment of FIG. 7.
  • the diameter of the closure plate 234 of the working fluid 210 which is larger than the closure plate 218 of the valve 203, can be seen, as a result of which high actuation forces can be achieved for a given pressure difference.
  • the working means 310 is coupled via the connecting rod 335 to a lever 362 which can be pivoted about the fixed bearing 361 and which is also articulated on the eccentric disk 363 at the position 364.
  • the coupling between lever 362 and eccentric disk 363 or connecting rod 335 preferably has a play which is necessary in view of the fixed articulation of lever 362 on bearing 361.
  • a type of connecting rod could also be provided for coupling the lever 362 to the eccentric disk 363.
  • the connecting element 31 7 is also coupled to the eccentric disk 363 in a slide track 365, in such a way that each rotational movement of the eccentric disk 363 from the illustrated starting position brings about a lifting movement of the connecting element 31 7 and thus opens the valve 303.
  • the slide track gives way 365 from a circular shape concentric with respect to the support 328 of the eccentric disk 363.
  • the eccentric disk 363 is rotatably mounted on the support 328.
  • the pressure in the container 2 can by the Pointer 367 can be read or otherwise determined by measurement.
  • the eccentric disk 363 a corresponding two-armed lever can also be used.
  • the gas inlet opening and, in particular, the gas outlet opening is formed by the upper end of the pipe socket 419 and can be closed gas-tight by a closure plate 418.
  • the pipe socket 419 forms one
  • a relatively long section of the pipe socket 419 extends essentially at right angles to the horizontal section. This essentially vertically extending elongated section is by means of a support element
  • the closure plate 418 can be actuated with a first connecting element 41 7 guided over a first fixed roller 473.
  • the shutter plate 418 and the first fixed roller located slightly above
  • the first connecting element 41 7 runs at least in sections in a guide 475, in particular in a leading and essentially vertical sleeve.
  • the working means 410 is arranged on a branch of the elongated, vertical section of the pipe socket 419 near the bend to the horizontal section. Similar to the previously described exemplary embodiments, the working medium 410 actuates over a coupling device 421, the actuating arm 413 of which is rotatably mounted about a position 414 on a support 428, the valve 403.
  • a further section 417b of the connecting element 41 7 is fixed to the actuating arm 413, which is also connected to the coupling element 477.
  • This further section 417b also opens the valve 403 in the event of a negative pressure due to the downward movement of the working medium 410.
  • the sections 41 7a and / or 41 7b can also be formed in one piece from the connecting element 41 7.
  • a continuous cable coming from the valve 403 via the first fixed roller 473 can be guided through or past the coupling element 477 and deflected via the second fixed roller 476 and fastened to the actuating arm 413 and subsequently until it is fixed on the coupling element 477 are enough. What is essential about this Embodiment that the valve 403 is opened in both directions of rotation of the actuating arm 41 3.
  • a compensation device 429 is provided, in particular a balancing weight which can be releasably fixed and in particular displaced on this side of the actuating element 413.
  • the response pressure of the working medium 410 for opening the valve 403 can be set by the mass of the counterweight and the distance to the position 414.
  • the support 428 is preferably fixed to the vertical section of the pipe socket 419.
  • FIG. 11 shows a plan view of the fifth exemplary embodiment of FIG. 10.
  • the section of the coupling device 421 remote from the working medium 410 is formed symmetrically to an imaginary central plane 478, in particular two are essentially Sections 413a, 413b of the actuating arm 413 running parallel to one another are each provided with a counterweight of the compensation device 429.
  • FIG. 12 shows a sixth exemplary embodiment of the device 501 according to the invention.
  • the working means 510 and the valve 503 are each arranged at the end on an essentially U-shaped connecting tube 579, which in the middle forms a flange 548 projecting to the side for connection to the fermentation or digester.
  • the closure plate 518 is actuated via sections 517a, 517b of the limp first connecting element, which at the first pivotable about the second position 514 Actuating arm 513 are fixed, however, in contrast to the fifth exemplary embodiment, on the side opposite the working medium 510.
  • a section 517a is guided over the second fixed roller 576 and is preferably fixed centrally on the closure plate 518, as is a section 51 7b which is guided over a third and fourth roller 583, 584. It would also be possible to fix the section 51 7b directly to the closure plate 518, since this raises the closure plate 518 when a negative pressure occurs in the working medium 510 as a result of the pivoting of the first actuating arm 513 clockwise and thus opens the valve 503.
  • valve 503 and the connecting element are arranged within a substantially gas-tight valve housing 580, which in turn is arranged in a housing 581 for the device.
  • the pipe socket 519 emerges from the valve housing 580 or from the housing 581 or is fixed to a corresponding housing part which has an opening.
  • a siphon 582 is connected to the valve housing 580 below the closure plate 518 in order, for example, to be able to drain off condensation water that occurs.
  • the closure plate 518 has a guide opposite the valve seat to prevent jamming.
  • a guide sleeve 585 is arranged on the valve seat, in which a guide pin 586 of the closure plate 518 can be displaced.
  • a maintenance opening in the valve housing 580 can be closed by a removable cover 588.
  • FIG. 13 shows a top view of the sixth exemplary embodiment of FIG. 12.
  • the housing 581 has heat insulation 585 in part or over the entire surface. This prevents water from freezing and, for example, valve 503 not opening properly, particularly at ambient temperatures around or below freezing.
  • the interior of the housing 581 and in particular the interior of the valve housing 580 are tempered in particular by the waste heat from the fermentation or digester. If necessary, direct temperature control can also be provided, for example by connecting to the heating of the fermentation or digester.
  • direct temperature control can also be provided, for example by connecting to the heating of the fermentation or digester.
  • Actuating arm 513 is guided into the interior of the valve housing 580 via a bearing tube, so that the sections 51 7a, 51 7b of the first connecting element and the fixed rollers 576, 583, 584 are likewise arranged in the interior of the valve housing 580.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

La présente invention concerne un dispositif (1; 101; 201; 301; 401; 501) pour ouvrir un clapet (3; 203; 303; 403; 503) d'un réservoir (2; 402), notamment un clapet d'entrée d'air ou un clapet de sortie de gaz d'un réservoir de fermentation ou de décomposition (2; 402), le clapet (3; 203; 303; 403; 503) étant relié à l'espace intérieur (6) du réservoir (2; 402) et pouvant être actionné lors d'une modification de la pression dans l'espace intérieur (6) du réservoir (2; 402) par rapport à la pression de l'environnement extérieur. L'invention se caractérise en ce que : le clapet (3; 203; 303) peut être actionné par un élément actif séparé (10; 110; 210; 310; 410; 510) qui présente un espace de fonctionnement (20; 420) qui est relié à l'espace intérieur (6) du réservoir (2; 402) et varie en fonction des différences de pression ; l'espace de fonctionnement (20; 420) est isolé de l'environnement extérieur ; et une ouverture d'entrée de gaz ou une ouverture de sortie de gaz du clapet (3; 203; 303; 403; 503) se trouve contre ou au-dessus d'une arête inférieure (471) de la paroi supérieure (70; 470) du réservoir (2). L'invention a également pour objet un réservoir de fermentation ou de décomposition (2; 402) correspondant.
PCT/EP2004/002787 2003-04-14 2004-03-18 Dispositif pour ouvrir un clapet, notamment un clapet d'entree d'air ou un clapet de sortie de gaz d'un reservoir de fermentation ou de decomposition WO2004090395A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003118310 DE10318310A1 (de) 2003-04-14 2003-04-14 Vorrichtung zum Öffnen eines Ventils, insbesondere eines Lufteinlaßventils oder Gasauslaßventils eines Gär-oder Faulbehälters
DE10318310.8 2003-04-14
PCT/EP2004/000605 WO2004090396A1 (fr) 2003-04-14 2004-01-24 Dispositif pour ouvrir un clapet, notamment un clapet d'admission d'air ou un clapet de sortie de gaz d'un recipient fermenteur ou d'un recipient digesteur
EPPCT/EP04/000605 2004-01-24

Publications (1)

Publication Number Publication Date
WO2004090395A1 true WO2004090395A1 (fr) 2004-10-21

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PCT/EP2004/002787 WO2004090395A1 (fr) 2003-04-14 2004-03-18 Dispositif pour ouvrir un clapet, notamment un clapet d'entree d'air ou un clapet de sortie de gaz d'un reservoir de fermentation ou de decomposition

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Country Link
WO (1) WO2004090395A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032325A (en) * 1931-06-15 1936-02-25 Doherty Res Co Pressure relief valve
US2689580A (en) * 1951-11-28 1954-09-21 Sun Oil Co Pressure relief valve
DE1008986B (de) * 1955-05-21 1957-05-23 John Henry Wiggins Entlueftungsventil fuer Gas- oder Fluessigkeitsbehaelter
FR1174131A (fr) * 1958-05-05 1959-03-06 Tech Et Commerciale D Installa Soupape de respiration, notamment pour réservoir à hydrocarbures
DE4422540A1 (de) 1994-06-28 1996-01-04 Xaver Lipp Gasablaßventil für mit Biomasse füllbare Silos
EP0747617A1 (fr) * 1995-06-08 1996-12-11 Idr Holding S.A. Soupape de limite de pression pour des conteneurs pressurisés
EP0838618A1 (fr) * 1993-02-26 1998-04-29 Keystone International Holdings Corp. Vanne de sécurité pour récipients sous pression

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032325A (en) * 1931-06-15 1936-02-25 Doherty Res Co Pressure relief valve
US2689580A (en) * 1951-11-28 1954-09-21 Sun Oil Co Pressure relief valve
DE1008986B (de) * 1955-05-21 1957-05-23 John Henry Wiggins Entlueftungsventil fuer Gas- oder Fluessigkeitsbehaelter
FR1174131A (fr) * 1958-05-05 1959-03-06 Tech Et Commerciale D Installa Soupape de respiration, notamment pour réservoir à hydrocarbures
EP0838618A1 (fr) * 1993-02-26 1998-04-29 Keystone International Holdings Corp. Vanne de sécurité pour récipients sous pression
DE4422540A1 (de) 1994-06-28 1996-01-04 Xaver Lipp Gasablaßventil für mit Biomasse füllbare Silos
EP0747617A1 (fr) * 1995-06-08 1996-12-11 Idr Holding S.A. Soupape de limite de pression pour des conteneurs pressurisés

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