EP2817426A1 - Verfahren zur druckstabilisierung - Google Patents
Verfahren zur druckstabilisierungInfo
- Publication number
- EP2817426A1 EP2817426A1 EP13715623.8A EP13715623A EP2817426A1 EP 2817426 A1 EP2817426 A1 EP 2817426A1 EP 13715623 A EP13715623 A EP 13715623A EP 2817426 A1 EP2817426 A1 EP 2817426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- pressure vessel
- pressure
- pipeline
- air
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000006641 stabilisation Effects 0.000 title claims description 5
- 238000011105 stabilization Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 234
- 238000001816 cooling Methods 0.000 claims abstract description 89
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000005555 metalworking Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000002826 coolant Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/12—Conveying liquids or viscous products by pressure of another fluid
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0396—Involving pressure control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/2937—Gas pressure discharge of liquids feed traps [e.g., to boiler]
Definitions
- the present invention relates to a method for pressure stabilization of the water supply of a cooling section and to a corresponding water supply system.
- Regulating the flow of water by means of a bypass valve avoids a short-term acceleration of large amounts of water, but leads to a high water and energy consumption.
- the object of the present invention is therefore an improved water supply to a cooling section.
- the object is achieved by a method for Druckstabili- tion of the water supply of a cooling section of a metal processing line, wherein the cooling section is supplied with one having What ⁇ ser-filled pipe with water from a water reservoir, the method comprising the steps of: providing a partially with air, and partly with water-filled pressure vessel; and providing a direct connection for the direct exchange of water between the pressure vessel and the pipeline such that when the water pressure in the pipeline falls, water from the pressure vessel is forced directly into the pipeline through the provided connection.
- the object is au ⁇ ßerdem achieved by a water supply system of a cooling section of a metal processing line, comprising a water-filled pipeline, through which the cooling section can be supplied with water from a water reservoir, a partial with air and partially filled with water pressure ⁇ tank, and direct connection to the immediate exchange of water between the pressure vessel and the pipeline so that when the water pressure in the water sinks Pipe water is pressed from the pressure vessel through the provided connection directly into the pipeline.
- the water filling in the pressure vessel is connected via a direct connection in the form of a water-filled supply line with the water column in the pipeline between the cooling section and the water reservoir in connection.
- Each pressure change in the pipeline thus acts directly, ie without interposition of further, the inertia underlying water masses - apart from in comparison to the volume of water in the leading from the water reservoir to the cooling pipe relatively low and faster accelerating water volume in the water-filled connection between the pressure vessel and the pipeline - to the pressure vessel; Accordingly, the pressure response of the pressure vessel can be made to the pressure drop in the pipeline.
- the pressure fluctuations subject to water reservoir can be a public water supply network, a water reservoir or other water source, eg. B. a body of water.
- a water reservoir or other water source eg. B. a body of water.
- the transport of the water from the water reservoir to the cooling section by means of a pump or by frge ⁇ set altitude energy of the water can take place when the water is brought from a relative to the cooling section elevated water reservoir.
- the invention is based on the finding that a Druckkon ⁇ stantigen in the water supply to a cooling section not only, as conventional, with a water reservoir such.
- a pressure equalization vessel serving pressure vessel can be realized, which is connected to the water supply of the cooling section serving pipe.
- the following are the loading are terms “pressure vessel” and “pressure compensation vessel” equality of ⁇ pointing used.
- the water reservoir and the pressure vessel are not functionally identical; they are different, independently acting devices. Even just because of its usually relatively small capacity of the pressure vessel would not be suitable to make a significant contribution to the water supply to a cooling section over a longer period.
- pressure equalization vessel By pressure equalization vessel, a pressure drop in the pipeline can be significantly reduced if in the cooling section, an increased water flow is needed, eg. B. when the cooling section is turned on or when additional valves are opened during operation of the cooling section.
- a decoupling of the cooling section is achieved by fluctuations in the water pressure in the water supply system using the pressure vessel, which serves as a Druckaus ⁇ same vessel for the pipeline.
- the pressure vessel is partially filled with water, which is above the Wasser Schol ⁇ ment a compressed air cushion.
- the pressure vessel is half filled with water and half filled with air.
- the pressure vessel is preferably atdeumblen- connected side end of a possibly relatively long pipe, which connects the water reservoir and the cooling section together. As a relatively long, a pipeline with a length in the range of 100 to 300 m is considered.
- the invention leads to a minimization of pressure fluctuations in a small compared to a conventional water tank storage volume of the surge tank.
- the required volume of the pressure vessel is much smaller than in a high tank.
- Typical volumes of the pressure vessel are at 10 to 20 Kubikme ⁇ ter, whereas a high-level tank usually contains at least 100 cubic meters of water.
- the invention does not lead to higher energy and water consumption compared to a bypass valve.
- the invention allows an immediate reaction without further delay, in contrast to a solution with a bypass valve.
- the pressure vessel is due to its relatively small volume and thus relatively small dimensions can be integrated into an existing water supply system.
- the pressure vessel can be arranged relative to the pipeline so that no air from the pressure vessel enters the pipeline, if the pipeline is depressurized, z. B. in the case of a failure of
- Pressure vessel and the pipeline as close as possible todestra- sen valves, which regulate the flow of water through the pipe and thus the water supply to the cooling section, in the pipeline.
- the short-term pressure drop in the pipeline arises at the place where the water column no longer experiences any limitation, i. at the cooling street valves.
- This pressure drop can be compensated for the faster the closer to the valves, the water flowing from the pressure vessel meets the water column in the pipeline.
- the pressure drop is, so to speak, as far as possible combated at the place of its origin.
- the method also includes adjusting the amount of air in the pressure vessel.
- the adjustment of the amount of air can be due to various reasons or be necessary, for. B.
- the water supply system preferably comprises a means for adjusting the amount of air in the pressure vessel.
- the connection between the pressure vessel and the pipeline is throttled or shut off.
- the water supply system Have a throttle device, which forms a valve ⁇ , in particular a shut-off valve, or a blocking flap.
- the term "throttling device” is understood as meaning any device for restricting the flow, ie any means for throttling or blocking.
- the throttling device acts as a flow resistance. If the throttling device is adjustable, the damping of the pipeline can thus also be adjusted. that the compressed air in the pressure vessel acts like a spring and the mass of the water column in the pipeline like a pen ⁇ del, totaling an oscillatory system is present ⁇ .
- This oscillatory system can by a Strö ⁇ flow resistance in the drain of the pressure vessel damped ⁇ to, although the flow resistance can again lead to larger pressure fluctuations on the cooling section, these can be easily calculated or recorded and taken into account in the cooling model of the cooling section, if the system responds overall well damped and not at change the amount of water stimulates vibrations.
- Is a throttle device in the course of the pressure vessel at ⁇ ordered can be arbitrarily operated rapidly in the cooling line valves without pressure surges müs- be feared sen or without large oscillations on the water management ⁇ economy destabilize a water pressure sensing and pressure fluctuations compensating cooling line control.
- This preferably designed as a valve throttle device can be made adjustable. Then the damping can be adjusted. If the throttle device is electrically adjustable, the damping can even be adapted dynamically and the throttle device can be integrated into a pressure control loop as a dynamic actuator.
- Such Drosselein ⁇ direction in the flow of the pressure vessel may further also exert egg ne safety function.
- the pressure vessel is shut off by the throttle device in the drain and thus safely separated from the water supply.
- the connection between the pressure vessel and the pipeline is shut off, if the level of the water filling in the pressure vessel falls below a predetermined threshold. It is essential to avoid that the air in Druckbenzol ⁇ ter completely pushes out the water in the pressure vessel from the pressure vessel and thereby possibly also compressed air in the pipe, ie the Wasserwirt- schaff, is blown. Water in the Wassermentsslei ⁇ tions of the cooling section can namely lead to significant problems, and also to damage of aggregates of the water supply to the cooling section.
- the level of the water filling is measured in the pressure vessel.
- the level of water ⁇ filling is measured in the pressure vessel.
- the water supply system comprises a sensor for measuring the level of water filling in the pressure vessel. It is advantageous that the amount of air in the pressure vessel is occasionally recalibrated, otherwise the amount of air in the pressure vessel may change over time. By measuring the water level too low a water level can it be known ⁇ and water are replenished into the pressure vessel at an early stage. A refilling of water in the pressure vessel can be effected by reducing the amount of air in the pressure vessel: the resulting pressure drop in Druckbe ⁇ container then leads to a subsequent flow of water from the pipeline into the pressure vessel.
- the water supply system may have a sensor for measuring the pressure in the pressure vessel. It is possible that the water pressure in the pipeline is measured. For this purpose, the water supply system may have a sensor for measuring the water pressure in the pipeline.
- a pressure sensor for measuring the water pressure in the pipeline is brought to advantage at the outlet of the pressure vessel before ⁇ Trains t on behind the throttle device, ie on the located toward the pipeline side of the throttle device. Then at any time the pressure inside the pressure vessel is known and also the pressure with which the cooling section is supplied with water. The pressure measurement inside the pressure vessel improves the control of the compressed air in the pressure vessel, the measurement of the pressure behind the throttle device is fed to the cooling model of the cooling section, thus improving the control of the cooling section.
- the pressure vessel has a volume in a range of 10 to 20 m 3 .
- a volume of less than 10 m 3 can lead to insufficient pressure stabilization.
- the dimensions of a pressure vessel with a volume of more than 20 m 3 may be limited in terms of ease of integration into an existing cooling system. lead the way.
- Pressure vessel with its volume A pressure vessel with a volume in a range of 10 to 20 m 3 thus represents a good compromise.
- FIG. 2 shows a further embodiment of a water supply system ⁇ a cooling section.
- Fig. 3 shows a pressure vessel during the switching of a
- Fig. 4 shows a pressure vessel during the off a
- FIG. 5 shows an embodiment of a pressure vessel.
- Fig. 6 shows another embodiment of a pressure vessels ⁇ ters; and
- Fig. 7 is a schematic of a piping with docking
- Pressure equalization vessel for estimating vibration damping.
- FIG. 1 shows a cooling section 1 and a water supply system 20 assigned to it.
- the cooling section 1 comprises cooling nozzles 8, via which cooling water flows onto a metal strip 7 to be cooled.
- the water supply to the cooling nozzles is controlled by one or more cooling line valves 9.
- the water supply system 20 comprises a water-filled pipeline 2 through which the cooling section 1 having What ⁇ ser can be supplied from a water reservoir 3, a partially with air 4a and partially with water 4w filled pressure vessel 4, a connecting tube 5 for the exchange of water water between the pressure vessel 4 and the pipe 2, and a compressed air system 17 for adjusting the pressure in the pressure vessel. 4
- the water reservoir 3 may be a public water supply network, a water reservoir, in particular a z. B. installed on a water tower high water tank, or other source of water, eg. B. a body of water. He ⁇ follows in the illustrated embodiment, the transport of the water from the water reservoir to the cooling section by the released height energy of the water, since the water of ei ⁇ nem compared to the cooling section 1 elevated water reservoir 3 is brought.
- the pressure vessel 4 may consist of any material that is both pressure and coolant resistant, z. As steel or aluminum.
- the shape of the pressure vessel 4 is so- ⁇ selected, that the pressure vessel 4 is able to withstand the internal pressures occurs;
- the pressure vessel 4 a cylindrical part which is closed by two outwardly curved bottoms or flat bottoms.
- one or more holes are madebil ⁇ det, by which coolant 4w and 4a air can be added or removed, and one or more sensors are inserted into the interior of the pressure vessel 4. These holes are sealed pressure-tight.
- the compressed air system 17 delivers compressed air through the combined air inlet and outlet 41, 42 into the pressure vessel 4, when the amount of air to be increased therein.
- ⁇ takes out the compressed air system 17 through the air inlets or exhaust combinatorial ⁇ ned 41, 42 from the pressure vessel 4 when the air amount is to be reduced therein.
- Fig. 2 shows a cooling unit 1 and its associated What ⁇ sermakersssystem 20 according to another exemplary embodiment game.
- the cooling section 1 reference is made to the corresponding description of FIG.
- the water supply system 20 substantially corresponds to that shown in Fig. 1, except for the difference that the pressure measuring signals of the two pressure sensors 10, 11 are collected and processed in a separate pressure measuring unit 12.
- the pressure measuring unit 12 generates based on these pressure measuring signals control signals that are sent to the compressed air system 17 and the control of the compressed air system 17 ⁇ nen.
- FIG. 2 Another difference between the results shown in Fig. 1 and Fig. 2 water supply systems 20 is that in the example shown in Fig. 2 water supply system is carried out 20 of the transport of water from the water reservoir 3 to the cooling section with ⁇ means of a pump 18. Due to the damping and balancing effect of the pressure vessel 4 to the pressure conditions in the conduit 2 can 18 induced pressure fluctuations are sufficiently damped from ⁇ by turning on and off of the pump, to control the operation of the cooling section 1, Special into ⁇ the cooling of metal strips, not impair ⁇ gen.
- Fig. 3 shows a pressure vessel 4 immediately after switching on a cooling section 1.
- the pipe 2 is suddenly a be ⁇ voted amount of water per unit time, ie a stream of water taken. Since, due to the inertia and the friction, the water column standing in the pipeline 2 can not flow instantaneously, there is first a pressure drop in the pipeline 2. However, this pressure drop in the pipeline 2 is largely compensated by the fact that water from the underpressure standing pressure vessel 4 is pushed out through the connecting line 5 into the pipe 2.
- the arrow 15 indicates the flow direction of the water from the pressure vessel 4.
- the outflow of water is noticeable by a fall in the water level 14 below a normal level 14n.
- the normal level 14n is set after prolonged shutdown or operation of the cooling unit 1, that is, under kon ⁇ constants pressure conditions.
- Fig. 4 shows the already known from Fig. 3 pressure vessel 4, but, in contrast to Fig. 3, immediately after switching off the cooling section 1.
- the previously flowing through the pipe 2 water flow is suddenly interrupted. Since due to the inertia and the friction the strömen- through the pipeline 2 de water column can not stop instantaneously, there is ⁇ next to a pressure increase in the pipe 2.
- This increase in pressure in the pipe 2 but is largely ⁇ equalized by the fact that water from the pipeline 2 through the connecting line 5 in the pressurized pressure vessel 4 is pressed.
- the arrow 15 indicates the direction of flow of the water in the pressure vessel 4.
- Fig. 5 shows a pressure vessel 4, in the interior, z. B. on a side wall, a level sensor 16 is arranged.
- the level sensor 16 measures the water level 14 of the water filling 4w of the pressure vessel 4, and provides the ent ⁇ speaking measuring value via a signal line to a control unit. The measurement as well as the signal generation can each take place after a predetermined time interval. If the level 14 falls below a threshold level 14 min, the
- Control device to cause water in the pressure vessel 4 is promoted. This is preferably done by driving egg ⁇ ner pump, which via a separate supply water in the Pressure vessel 4 pumps. Alternatively, the water comes to fill the pressure vessel 4 from the pipe 2, wherein the ⁇ ses water is forced through the connecting line 5 in the pressure vessel 4.
- the pressure vessel 4 shown in Fig. 5 further includes an air outlet 41 and an air inlet 42. Thereby, the pressure in the pressure vessel 4 can be controlled by supplying and discharging air.
- the flow direction of the air in the air lines 41, 42 is indicated by the arrows 15. It is thus possible that via a discharge of air from the pressure vessel 4 through the air outlet 41, the pressure in the pressure vessel 4 is lowered so far that water is pressed from the pipe 2 into the pressure vessel 4.
- FIG. 6 shows a pressure vessel 4 having a combined air inlet and outlet 41, 42. The two possible flow directions of the air in the combined air inlet and outlet 41, 42 are indicated by the arrow 15. Fig.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Pipeline Systems (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Power Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13715623.8A EP2817426B1 (de) | 2012-03-27 | 2013-03-18 | Verfahren zur druckstabilisierung |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20120161385 EP2644718A1 (de) | 2012-03-27 | 2012-03-27 | Verfahren zur Druckstabilisierung |
EP13715623.8A EP2817426B1 (de) | 2012-03-27 | 2013-03-18 | Verfahren zur druckstabilisierung |
PCT/EP2013/055547 WO2013143902A1 (de) | 2012-03-27 | 2013-03-18 | Verfahren zur druckstabilisierung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2817426A1 true EP2817426A1 (de) | 2014-12-31 |
EP2817426B1 EP2817426B1 (de) | 2016-05-18 |
Family
ID=48087529
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120161385 Withdrawn EP2644718A1 (de) | 2012-03-27 | 2012-03-27 | Verfahren zur Druckstabilisierung |
EP13715623.8A Active EP2817426B1 (de) | 2012-03-27 | 2013-03-18 | Verfahren zur druckstabilisierung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120161385 Withdrawn EP2644718A1 (de) | 2012-03-27 | 2012-03-27 | Verfahren zur Druckstabilisierung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150053272A1 (de) |
EP (2) | EP2644718A1 (de) |
CN (1) | CN104321448B (de) |
WO (1) | WO2013143902A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104805260B (zh) * | 2015-04-10 | 2017-01-18 | 北京首钢股份有限公司 | 冷却供水系统及其缓冲供水方法 |
EP3335812A1 (de) * | 2016-12-14 | 2018-06-20 | Primetals Technologies Austria GmbH | Kühlanlage zum kühlen von walzgut |
EP3760326A1 (de) * | 2019-07-03 | 2021-01-06 | Primetals Technologies Germany GmbH | Kühlstrecke mit ventilen und druckgefässen zur vermeidung von druckschlägen |
EP3895819B1 (de) * | 2020-04-14 | 2023-06-07 | Primetals Technologies Germany GmbH | Betrieb einer kühleinrichtung mit einem minimalen arbeitsdruck |
Family Cites Families (16)
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US43770A (en) * | 1864-08-09 | Improvement in apparatus for forcing water by pneumatic pressure | ||
FR2223096B1 (de) * | 1973-03-26 | 1976-09-10 | Usinor | |
DE2810738C3 (de) * | 1978-03-13 | 1980-09-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Druckgeregelte Wasserversorgungsanlage |
US4252572A (en) * | 1979-09-07 | 1981-02-24 | Schaming Edward J | Apparatus for cleaning a metal strip in a rolling mill |
US4317539A (en) * | 1979-11-30 | 1982-03-02 | Pollock Keith B | Trickle irrigation |
JPS5861910A (ja) * | 1981-10-09 | 1983-04-13 | Nippon Steel Corp | 金属板状体の冷却装置 |
US4813652A (en) * | 1981-11-26 | 1989-03-21 | Union Siderurgique Du Nord Et De L'est De La France (Usinor) | Plant for effecting the controlled cooling of metal sheets |
JPH04167916A (ja) * | 1990-10-30 | 1992-06-16 | Sumitomo Metal Ind Ltd | スプレー用給水圧力制御装置 |
US5151175A (en) * | 1991-07-12 | 1992-09-29 | Royal Claude S | System to automatically drain filter backwash water |
DE19520138A1 (de) * | 1995-06-01 | 1996-12-05 | Wsp Ingenieur Gmbh | Kühlstrecke mit Wasserspritzdüsen für auf Rollen geführte Metallplatten und Stückbleche |
US5901744A (en) * | 1996-09-06 | 1999-05-11 | Richards; Samuel K. | Water supply system for a water source with limited flow capability |
JPH10296320A (ja) * | 1997-04-23 | 1998-11-10 | Nkk Corp | 鋼板冷却装置 |
DE19850253A1 (de) | 1998-10-31 | 2000-05-04 | Schloemann Siemag Ag | Verfahren und System zur Regelung von Kühlstrecken |
DE19937606A1 (de) * | 1999-03-29 | 2000-10-12 | Steag Hamatech Ag | Verfahren und Vorrichtung zum Bereitstellen eines Fluids aus einem Drucktank |
LU90581B1 (en) * | 2000-05-09 | 2001-11-12 | Wurth Paul Sa | Coolong system for a mettalurgical furnace |
CN102383469B (zh) * | 2011-09-05 | 2017-04-19 | 石连科 | 给水装置及其给水方法 |
-
2012
- 2012-03-27 EP EP20120161385 patent/EP2644718A1/de not_active Withdrawn
-
2013
- 2013-03-18 CN CN201380027159.6A patent/CN104321448B/zh active Active
- 2013-03-18 US US14/388,690 patent/US20150053272A1/en not_active Abandoned
- 2013-03-18 WO PCT/EP2013/055547 patent/WO2013143902A1/de active Application Filing
- 2013-03-18 EP EP13715623.8A patent/EP2817426B1/de active Active
Non-Patent Citations (1)
Title |
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Also Published As
Publication number | Publication date |
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CN104321448A (zh) | 2015-01-28 |
EP2644718A1 (de) | 2013-10-02 |
US20150053272A1 (en) | 2015-02-26 |
WO2013143902A1 (de) | 2013-10-03 |
EP2817426B1 (de) | 2016-05-18 |
CN104321448B (zh) | 2016-06-29 |
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