EP3993917B1 - Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression - Google Patents

Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression Download PDF

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Publication number
EP3993917B1
EP3993917B1 EP20733964.9A EP20733964A EP3993917B1 EP 3993917 B1 EP3993917 B1 EP 3993917B1 EP 20733964 A EP20733964 A EP 20733964A EP 3993917 B1 EP3993917 B1 EP 3993917B1
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EP
European Patent Office
Prior art keywords
water
cooling devices
cooling
pressure vessel
pressure
Prior art date
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Application number
EP20733964.9A
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German (de)
English (en)
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EP3993917A1 (fr
EP3993917C0 (fr
Inventor
Klaus Weinzierl
Erich Opitz
Lukas PICHLER
Florian POESCHL
Alois Seilinger
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Primetals Technologies Germany GmbH
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Primetals Technologies Germany GmbH
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Publication of EP3993917C0 publication Critical patent/EP3993917C0/fr
Publication of EP3993917B1 publication Critical patent/EP3993917B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • Such a device is, for example, from WO 2018/080 669 A2 known.
  • a single bypass line is arranged in parallel with the stub lines. Pressure surges are to be avoided by means of the bypass line, which can otherwise occur in the event of a rapid interruption of the volume flow flowing through the branch lines.
  • the bypass line must be actively opened and closed.
  • a cooling section for a flat rolling stock is known, the cooling section having a plurality of spray bars, each of which is preceded by a valve.
  • the preamble of claim 1 is based on this document.
  • WO 2013/143 902 A1 also discloses a device for cooling a rolled metal stock rolled in a rolling train.
  • the cooling nozzles of the local cooling section are connected to a water reservoir via a supply line.
  • the water supply to the cooling nozzles is controlled by one or more valves.
  • the pressure vessel is partly filled with water and partly with air. In this configuration, pressure shocks, which can otherwise occur if the volume flow flowing through the branch lines is interrupted quickly, can be avoided or at least reduced in intensity due to the buffering effect of the pressure vessel.
  • the rolling stock is cooled.
  • Precise temperature control in the cooling section is customary in order to set the desired material properties and keep them as constant as possible.
  • Several cooling devices are installed along the transport direction of the rolling stock, by means of which water is applied to at least one side of the rolling stock.
  • the cooling devices can be designed as cooling beams, for example.
  • the amounts of water applied via the cooling devices are set via valves arranged upstream of the cooling devices. It is particularly problematic when the valves are closed quickly. Because if the valves are closed too quickly, pressure surges often occur, also known as pressure surges in specialist circles. In order to avoid excessive loads, the switch-off time is therefore usually limited to 1 second. This is true even if the valves could be closed faster.
  • Pneumatic valves are generally used in the prior art. These can usually not be faster than 1 switch second. In individual cases, however, lower switching times of 0.6 seconds can also be achieved.
  • WO 2013/143 902 A1 From the WO 2013/143 902 A1 is known to connect a pressure vessel in the supply line to the cooling section.
  • This pressure vessel is mainly used to keep the pressure in the supply to the cooling section constant, but also reduces pressure surges to a certain extent.
  • the pressure vessel there is designed for a volume of several cubic meters. Specifically mentioned in the WO 2013/143 902 A1 a typical volume between 10 and 20 cubic meters.
  • the object of the present invention is to provide an apparatus for cooling a rolled metal stock being rolled in a rolling mill, which has superior operational characteristics.
  • the device can be designed as a cooling section, which is arranged downstream of the rolling train.
  • the device can be designed as a group of interstand cooling systems, with one of the interstand cooling systems being arranged between each two roll stands of the rolling train.
  • the device can also be arranged upstream of the rolling train, for example if the device is arranged between (at least) one roughing stand and a multi-stand finishing train. Mixed forms are also possible.
  • the rolling stock often consists of steel.
  • it can be a flat rolling stock, ie a strip or a heavy plate.
  • the cooling devices can alternatively apply water to the flat rolled stock only on the upper side, only on the lower side or both on the upper side and on the lower side.
  • the amount of water applied to the rolling stock can be set individually for the cooling devices via their valves. It is possible for the groups of coolers to be "real" groups of coolers, each comprising more than one cooler. In many cases, however, at least some of the groups of cooling devices each include only a single cooling device. In particular, it is even possible for all groups to include only a single cooling device. In this case the groups of cooling devices are degenerate.
  • the drives assigned to the valves can be configured as required.
  • they can be designed as electrical drives, for example as stepper motors.
  • the pressure vessel proprietary to a respective group of cooling devices has a vessel volume.
  • the vessel volume is preferably between n ⁇ 20 l and n ⁇ 200 l where n is the number of cooling devices in the respective group.
  • the vessel volume is particularly preferably between n ⁇ 50 l and n ⁇ 125 l.
  • a respective volume flow flows in the respective supply line if the valves of the cooling devices of the respective group are all fully open.
  • a respective line pressure prevails in the respective supply line in the area of the respective connection point.
  • the respective flow resistance is preferably dimensioned in such a way that the respective volume flow, if it flows over the respective flow resistance, causes a pressure drop that is at least 25% and at most 75% of the respective line pressure, in particular approximately half as large as the respective line pressure.
  • minor deviations are acceptable.
  • a rolling stock 1 is rolled in a rolling train. is shown in FIG 1 only the last rolling stand 2 of a multi-stand rolling train.
  • the rolling stock 1 is often a flat rolling stock, ie a strip or a heavy plate.
  • the rolling stock 1 can also have a different format. For example, it can be a profile or a rod-shaped rolling stock 1 .
  • the rolling stock 1 often consists of steel, sometimes of aluminum and in rare cases of another metal or a corresponding alloy.
  • a cooling section 3 is arranged downstream of the rolling train.
  • the rolling stock 1 is cooled in the cooling section 3 .
  • the cooling section 3 is thus a device for cooling the rolled metal rolling stock 1 in the rolling train.
  • cooling section is therefore used in the sense of the device mentioned.
  • the present invention can also be implemented if the device is arranged within the rolling train, ie between the rolling stands 2 of the multi-stand rolling train. Furthermore, it can also be implemented if the device is arranged upstream of the rolling train.
  • the cooling section 3 has according to FIG 1 several cooling devices 4 on.
  • Water 5 is applied to the rolling stock 1 by means of the cooling devices 4 .
  • the cooling devices 4 are generally designed as spray bars which apply the water 5 to the rolling stock 1 over the entire width of the rolling stock 1 .
  • the water 5 in its entirety is fed to the cooling section 3 via a supply line 6 .
  • the water 5 is distributed within the cooling section 3 until it enters branch lines 7 , via which the water 5 is fed to the respective cooling device 4 .
  • branch lines 7 one (1) valve 8 is arranged, by means of which the amount of water 5, the respective cooling device 4 per unit of time is supplied can be adjusted. There is thus a 1:1 assignment of cooling devices 4, branch lines 7 and valves 8.
  • the amount of water 5 that is supplied to the respective cooling device 4 per unit of time represents a respective water flow.
  • FIG 1 a total of eight cooling devices 4 are shown, in the illustration according to FIG 1 one part of the cooling devices 4 applies the water 5 to the rolling stock 1 from above, and another part of the cooling devices 4 applies the water 5 to the rolling stock 1 from below. Furthermore, the cooling devices 4 are arranged in a staggered manner one behind the other as seen in the transport direction x of the rolling stock 1 .
  • these facts are purely exemplary. Thus, more or fewer than eight cooling devices 4 can easily be present. It is also possible for the water 5 to be applied to the rolling stock 1 exclusively from above or exclusively from below by means of the cooling devices 4 .
  • the rolling stock 1 is a flat rolling stock, it is as shown in FIG FIG 2 it is also possible for a plurality of cooling devices 4 to be arranged next to one another, viewed in the width direction y of the rolling stock 1 . It is crucial that the respective valve 8 is arranged in the respective branch line 7, by means of which the respective water flow flowing through the respective branch line 7 can be adjusted.
  • a drive 9 is assigned to each of the valves 8 as an actuating device.
  • the drives 9 are as shown in FIG 2 designed as electric drives.
  • the respective valve 8 is activated via the respective drive 9 .
  • This fact is also in the valves 8 of FIG 1 the case. In FIG 1 However, this is not shown to FIG 1 not to overload.
  • Due to the design of the actuating devices as electric drives switching times can be realized for the valves 8 that are well below 1 second, for example 0.2 seconds or less.
  • electric drives can be adjusted very quickly and accurately. This is both a fast as well as a precise adjustment of a respective valve position possible.
  • the electrical drives can be designed as stepping motors, for example. Stepper motors can easily be turned 90° in less than 0.2 seconds. This angle also corresponds to the angle of rotation of a conventional valve 8 between the fully closed and fully open positions. Thus, the respective valve 8 can be transferred from the fully closed position to the fully open position and vice versa in a time of 0.2 seconds and less. Furthermore, the adjustment in a stepper motor usually takes place in angular steps that are well below 1° (mechanical), for example at 0.1° (or a similarly small angle). In this case, an adjustment of the respective valve 8 between the fully closed and the fully open position in steps of 0.1° (or a similarly small angle) is possible. Furthermore, the control electronics of an electric drive is sufficiently simple and inexpensive.
  • the cooling devices 4 continue to form as shown in 3 several groups.
  • the groups are each assigned their own proprietary pressure vessel 10 .
  • the term “assigned proprietary” is intended to mean that the respective pressure vessel 10 interacts with the cooling devices 4 of the respective group and only interacts with these cooling devices 4 .
  • the respective pressure vessel 10 is connected to a respective supply line 12 at a respective connection point 11 .
  • the water 5 is the branch lines 7 of the cooling devices 4 assigned to the appropriate group. Viewed in the direction of flow of the water 5 , the respective connection point 11 is therefore arranged in front of the valves 8 of the respective group of cooling devices 4 .
  • the water 5 is not routed to the branch lines 7 from other cooling devices 4 via the respective supply line 12 .
  • the respective connection point 11 is therefore not arranged in front of the valves 8 of other groups of cooling devices 4.
  • the respective pressure vessel 10 thus defines the respective group of cooling devices 4: all cooling devices 4 whose water 5 flows via the respective connection point 11 form one (1) group of cooling devices 4. All other cooling devices 4 do not belong to this group.
  • the respective connection point 11 for the respective pressure vessel 10 should be located as close to the valves 8 of the respective group as is possible. If - see in 3 left - the respective group of cooling devices 4 includes only a single cooling device 4, the respective connection point 11 should thus be arranged as close as possible to the valve 8 of this cooling device 4. If - see in 3 right - the respective group of cooling devices 4 comprises several cooling devices 4, the respective connection point 11 should be arranged as close as possible to a distribution point 13 at which the supply line 12 branches off to the cooling devices 4 of the respective group for the first time.
  • the representation in 3 includes a part of the groups of cooling devices 4 only a single cooling device 4. In the representation of 3 this is specifically the case with the two cooling devices 4 shown on the left. In these cases, the respective supply line 12 is identical to the respective stub line 7 . Alternatively, it is also possible for the groups of cooling devices 4 to each include a plurality of cooling devices 4 . In the representation of 3 this is specifically the case with the two cooling devices 4 shown on the right. In these cases, the respective Lead 12 upstream of the respective stubs 7 .
  • the decisive criterion for the arrangement of the pressure vessels 10 is the amount of water 5 that is located between the respective connection point 11 and the respective valves 8 or--in the case of a single downstream valve 8--the respective valve 8. This is because this amount of water cannot be diverted into the corresponding pressure vessel 10 . This quantity must therefore be decelerated directly and quickly in front of the respective valves 8 if the respective valves 8 close quickly. As a rule, this is not critical if the distances between the respective valves 8 and the respective pressure vessel 10 are small enough, for example 10 m or less, in particular less than 5 m. This is to be illustrated using an example for a single valve 8.
  • the flow rate of the water 5 in the corresponding branch line 7 is 3 m/s.
  • the respective valve 8 is completely closed within 0.2 seconds. Then the water 5 must be decelerated from 3 m/s to 0 m/s within 0.2 seconds. This results in an average acceleration of 15 m/s 2 , ie approximately 1.5 times the acceleration due to gravity. It is also known that a 10 m high water column generates a pressure of 1 bar. The same applies to a 10 m long column of water that is decelerated with gravitational acceleration. It is also assumed that the distance from the respective connection point 11 to the respective valve 8 is 5 m.
  • a 10 m long water column does not have to be decelerated with 1.0 times the acceleration due to gravity, but a 5 m long water column with the 1 .5 times the acceleration due to gravity.
  • this water column generates a pressure of 0.75 bar when braking from 3.0 m/s to 0 m/s in 0.2 seconds.
  • pressure vessels 10 are used to equalize the water balance. They should therefore be able to receive water 5 from the supply line 12 to which they are connected in the event of a rapid reduction in the water requirement, and feed water 5 back into the supply line 12 in the event of a sudden increase in the water requirement. So that the pressure vessels 10 can take up and feed back this water 5, the pressure vessels 10 are, as shown in 3 in each case partly filled with water 5 and partly with air 14 during operation. As a rule, a filling level F of water should be 5 (see FIG 4 ) of about 50% should be aimed for. However, certain deviations - for example between 40% and 60% - are quite possible. The pressure vessel 10 is therefore intended to be partially filled with water 5 and partially with air 14 during operation.
  • the pressure vessels 10 can have a respective air valve 15, for example.
  • Air 14 can be supplied to the respective pressure vessel 10 or air 14 can be discharged from the respective pressure vessel 10 via the respective air valve 15 .
  • the respective air valve 15 is a manually operated check valve (such as the valve of a bicycle or other road vehicle with air-filled tires).
  • the respective pressure vessel 10 preferably has a fill level indicator and/or a pressure indicator.
  • the level indicator can be a simple sight glass, for example, and the pressure indicator can be a standard manometer.
  • the respective air valve 15 of a control device (not shown) of the cooling section 3 can be controlled.
  • the respective air valve 15 is preferably divided into two valve paths, one of the two valve paths being connected to a compressed air supply for refilling air 14 into the respective pressure vessel 10, and the other of the two valve paths for releasing air 14 from the respective pressure vessel 10 has an outlet to the environment. Furthermore, in this case, the respective degree of filling F and/or the pressure prevailing in the respective pressure vessel 10 are preferably measured and transmitted to the named control device.
  • the amount of water moving in the respective supply line 12 is thus gently decelerated by the respective pressure vessel 10 .
  • the groups of cooling devices 4 are usually relatively small - usually no more than six to ten cooling devices 4 - the pressure vessels 10 can still be dimensioned relatively small. This is discussed below in connection with the 4 to 6 explained for an embodiment in which the respective group of cooling devices 4 comprises only a single cooling device 4. However, the corresponding statements can also be used if the respective group of cooling devices 4 comprises a plurality of cooling devices 4 . In this case, the following explanations must be modified in such a way that it is assumed that the valves 8 of the respective group are controlled uniformly.
  • a respective volume flow V of water 5 flows in the respective supply line 12 - which is identical to the branch line 7 in the case of a group with a single cooling device 4. This state is in 5 shown on the left.
  • the degree of filling F is according to the representation in FIG 4 initially at around 50%.
  • the respective pressure vessel 10 is thus filled with water 5 and air 14 in approximately equal parts.
  • the corresponding valve 8 is switched from the fully open to the fully closed position.
  • the transition from the fully open to the fully closed position takes place as quickly as possible, for example in a time of 0.1 seconds or 0.2 seconds.
  • the respective pressure vessel 10 were not present, a high pressure surge would occur when the respective valve 8 was closed, since the respective volume flow V flowing in the respective feed line 12 would have to be abruptly reduced to zero. Due to the respective pressure vessel 10, however, the respective volume flow V can be deflected into the respective pressure vessel 10. As a result, the respective pressure vessel 10 is further filled beyond its previous fill level F. By filling the respective pressure vessel 10, however, the air 14 located in the respective pressure vessel is compressed, so that the air pressure there increases. The increased air pressure opposes increasing resistance to the further supply of water 5 into the respective pressure vessel.
  • the respective degree of filling F therefore initially increases from time t0, but then reaches a maximum and then decreases again. If necessary, a slight, mostly clearly damped oscillation can occur. This is best in due to the change in sign of the flow rate 5 recognizable.
  • the maximum of the degree of filling F is usually reached within 1 second, sometimes even in a shorter time of, for example, only 0.5 seconds.
  • the quotient mentioned should preferably be in the range between 0.2 seconds and 2.0 seconds. In practice, this corresponds to a volume of between 20 l and 200 l for an individual cooling device 4, usually in the range between 50 l and 125 l, in particular approximately 100 l. If the group includes several cooling devices 4, the volume values mentioned must be scaled accordingly.
  • the pressure drop ⁇ p is preferably approximately half the size of the respective line pressure p0. Consequently, the respective line pressure p must rise abruptly to a value which corresponds to approximately 1.4 to 1.6 times the value p0, ie approximately 1.5 times. In absolute values, the pressure drop ⁇ p is usually in the order of 1 bar in practice. The respective line pressure p then drops again.
  • the respective flow resistance 16 can be set as a result by appropriate dimensioning of the respective connection line between the respective connection point 11 and the respective pressure vessel 10, in particular by dimensioning the cross section of the entire respective connection line or the cross section of a section of the respective connection line. Suitable dimensioning of the flow resistance 16 in particular suppresses and dampens a tendency to oscillate.
  • the present invention has many advantages.
  • pressure surges can be avoided even though the valves 8 are switched very quickly (with switching times well below 1 s).
  • the influence of the pressure vessels 10 on the quantities of water actually supplied to the cooling devices 4 can be taken into account with a corresponding model of the cooling section 3 or can be easily compensated for via a basic automation of the cooling section 3 .
  • the pressure vessels 10 continue to reduce pressure fluctuations within the fluid power system (consisting of the supply line 6, the feed lines 12 and the branch lines 7). This simplifies the regulation of pumps that convey the water 5 . This applies in particular when pressure measurements are used to control the pumps.
  • drops in pressure when valves 8 are switched on are also reduced, since in this case water 5 is fed from the pressure vessels 10 into the corresponding supply lines 12 .
  • the design of the drives 9 as electric drives allows for a simple Ensure reliable and fast control of the valves 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Rolling (AREA)

Claims (6)

  1. Dispositif pour le refroidissement d'un produit laminé métallique (1) laminé dans un train de laminage,
    - le dispositif comprenant plusieurs dispositifs de refroidissement (4), auxquels de l'eau (5) est amenée par l'intermédiaire d'une conduite d'embranchement (7) respective et au moyen desquels l'eau (5) est appliquée sur le produit laminé (1),
    - dans lequel dans les conduites d'embranchement (7) est disposée respectivement une soupape (8), au moyen de laquelle le flux d'eau traversant la conduite d'embranchement (7) respective est ajusté,
    - dans lequel aux soupapes (8) est associé respectivement un entraînement (9), par l'intermédiaire duquel la soupape (8) respective est commandée,
    caractérisé
    - en ce que les dispositifs de refroidissement (4) forment plusieurs groupes, auxquels un récipient sous pression (10) propre est associé de manière respectivement propriétaire,
    - en ce que le récipient sous pression (10) respectif est raccordé au niveau d'un point de raccordement (11) respectif à une conduite d'alimentation (12) respective, par l'intermédiaire de laquelle l'eau (5) est amenée aux conduites d'embranchement (7) des dispositifs de refroidissement (4) du groupe correspondant, de telle sorte que le point de raccordement (11) respectif des soupapes (8) du groupe respectif de dispositifs de refroidissement (4) soit disposé en amont, vu dans la direction d'écoulement de l'eau (5).
  2. Dispositif selon la revendication 1,
    caractérisé
    en ce qu'au moins une partie des groupes de dispositifs de refroidissement (4) comprend respectivement seulement un unique dispositif de refroidissement (4).
  3. Dispositif selon la revendication 1 ou la revendication 2, caractérisé
    en ce que les entraînements (9) sont conçus sous la forme d'entraînements électriques.
  4. Dispositif selon la revendication 3,
    caractérisé
    en ce que les entraînements électriques sont conçus sous la forme de moteurs pas à pas.
  5. Dispositif selon l'une des revendications précédentes, caractérisé
    - en ce que le récipient sous pression (10) associé de manière propriétaire à un groupe respectif de dispositifs de refroidissement (4) présente un volume de récipient, et
    - en ce que le volume de récipient se situe entre n x 20 L et n x 200 L, dans lequel n est le nombre de dispositifs de refroidissement (4) du groupe respectif.
  6. Dispositif selon l'une des revendications précédentes, caractérisé
    en ce qu'entre le point de raccordement (11) respectif et le récipient sous pression (10) respectif est disposée une résistance à l'écoulement (16) respective.
EP20733964.9A 2019-07-03 2020-06-18 Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression Active EP3993917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19184168.3A EP3760326A1 (fr) 2019-07-03 2019-07-03 Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression
PCT/EP2020/066970 WO2021001162A1 (fr) 2019-07-03 2020-06-18 Section de refroidissement comportant des soupapes et des contenants sous pression pour empêcher des coups de bélier

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Publication Number Publication Date
EP3993917A1 EP3993917A1 (fr) 2022-05-11
EP3993917C0 EP3993917C0 (fr) 2023-08-09
EP3993917B1 true EP3993917B1 (fr) 2023-08-09

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EP19184168.3A Withdrawn EP3760326A1 (fr) 2019-07-03 2019-07-03 Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression
EP20733964.9A Active EP3993917B1 (fr) 2019-07-03 2020-06-18 Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression

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EP19184168.3A Withdrawn EP3760326A1 (fr) 2019-07-03 2019-07-03 Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression

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Country Link
US (1) US20220362823A1 (fr)
EP (2) EP3760326A1 (fr)
JP (1) JP7318023B2 (fr)
KR (1) KR20220029599A (fr)
CN (1) CN114040821A (fr)
MX (1) MX2021015940A (fr)
WO (1) WO2021001162A1 (fr)

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JPH064170B2 (ja) * 1988-01-22 1994-01-19 石川島播磨重工業株式会社 金属板冷却用ノズル
US4949656A (en) * 1988-02-01 1990-08-21 The Texas A&M University System Distribution manifold for mobile span-and-tower irrigation systems
EP2644718A1 (fr) 2012-03-27 2013-10-02 Siemens Aktiengesellschaft Procédé de stabilisation de pression
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EP2767353A1 (fr) * 2013-02-15 2014-08-20 Siemens VAI Metals Technologies GmbH Tunnel de refroidissement avec Power Cooling et refroidissement à flux laminaire
CN204503780U (zh) * 2015-01-30 2015-07-29 中冶南方工程技术有限公司 一种热轧棒材水冷却装置供水系统
US10240099B2 (en) 2016-10-27 2019-03-26 Uop Llc Processes for producing a fuel from a renewable feedstock

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KR20220029599A (ko) 2022-03-08
EP3993917A1 (fr) 2022-05-11
WO2021001162A1 (fr) 2021-01-07
EP3993917C0 (fr) 2023-08-09
CN114040821A (zh) 2022-02-11
JP7318023B2 (ja) 2023-07-31
EP3760326A1 (fr) 2021-01-06
US20220362823A1 (en) 2022-11-17
JP2022538856A (ja) 2022-09-06
MX2021015940A (es) 2022-02-03

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