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EP2644718A1 - Procédé de stabilisation de pression - Google Patents

Procédé de stabilisation de pression Download PDF

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Publication number
EP2644718A1
EP2644718A1 EP20120161385 EP12161385A EP2644718A1 EP 2644718 A1 EP2644718 A1 EP 2644718A1 EP 20120161385 EP20120161385 EP 20120161385 EP 12161385 A EP12161385 A EP 12161385A EP 2644718 A1 EP2644718 A1 EP 2644718A1
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.)
Withdrawn
Application number
EP20120161385
Other languages
German (de)
English (en)
Inventor
Klaus Weinzierl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP20120161385 priority Critical patent/EP2644718A1/fr
Priority to EP13715623.8A priority patent/EP2817426B1/fr
Priority to PCT/EP2013/055547 priority patent/WO2013143902A1/fr
Priority to CN201380027159.6A priority patent/CN104321448B/zh
Priority to US14/388,690 priority patent/US20150053272A1/en
Publication of EP2644718A1 publication Critical patent/EP2644718A1/fr
Withdrawn legal-status Critical Current

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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
    • B21B45/0218—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 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 pressure stabilization of the water supply to a cooling section, wherein the cooling section is supplied by a water-filled pipe with water from a water reservoir, the method comprising the steps of: providing a partially filled with air and partly with water pressure vessel; and providing a connection for the exchange of water between the pressure vessel and the pipeline so that when the water pressure in the pipeline falls, water is forced out of the pressure vessel through the provided connection into the pipeline.
  • a water supply system of a cooling section comprising a water-filled pipe through which the cooling section can be supplied with water from a water reservoir, a partially filled with air and partly with water pressure vessel, and a connection for the exchange of water between the pressure vessel and the pipe so that when the water pressure in the pipeline decreases, water from the pressure vessel through the provided connection is pushed into 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 released height 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 pressure maintenance 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.
  • pressure vessel and “pressure equalization vessel” are used synonymously.
  • the water reservoir and the pressure vessel are not functionally identical; they are different 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.
  • the pressure vessel according to the present invention serves only temporarily as a pressure equalizing vessel and is installed in addition to the water reservoir. The present invention does not require modification of an existing water reservoir; this can remain imperfect, ie generating constant pressure fluctuations.
  • the pressure vessel offers the possibility to realize a pressure stabilization solely by him.
  • 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. Until the water column in the pipeline serving as the supply pipe is accelerated to a sufficient speed, the required water is supplied from the pressure vessel.
  • This supply of the cooling section with water from the pressure vessel is possible because the air in the pressure vessel expands at a pressure drop in the pipeline and pushes water out of the pressure vessel. This temporary supply of water from the pressure vessel counteracts the pressure drop in the pipeline.
  • 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 pressure equalization vessel for the pipeline.
  • the pressure vessel is partially filled with water, with a compressed air cushion over the water filling.
  • the pressure vessel is half filled with water and half filled with air.
  • the pressure vessel is preferably connected to the cooling-side end of a possibly relatively long pipe, which connects the water reservoir and the cooling section with each other.
  • a pipeline with a length in the range of 100 to 300 m is considered.
  • 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 may comprise a throttle device, which is designed as a valve, in particular a shut-off valve, or a blocking flap.
  • throttle device is understood to mean any device for limiting the flow, ie any means for throttling or blocking.
  • the throttle device acts as a flow resistance. If the throttle device is adjustable, thus the damping of the pipeline is adjustable.
  • the compressed air in the pressure vessel acts as a spring and the mass of the water column in the pipeline acts as a pendulum, so that a total oscillating system is present.
  • This oscillatory system can be damped by a flow resistance in the discharge of the pressure vessel, which dampens the vibration tendency of the system.
  • the flow resistance can again lead to larger pressure fluctuations on the cooling section, but these can be easily calculated or recorded and considered in the cooling model of the cooling section, when the system reacts well damped overall and does not excite vibrations with changes in the amount of water.
  • valves can be actuated as rapidly as desired in the cooling section without pressure surges having to be feared or without destabilizing a cooling circuit control that detects the water pressure and compensates for pressure fluctuations without great vibrations via the water industry.
  • 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 a throttle device in the outlet of the pressure vessel can continue to exercise a safety function. If the level in the pressure vessel too low due to an occurring error, the pressure vessel is shut off by the throttle device in the process and so 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 drops below a predetermined threshold. It is in fact essential to avoid that the air in the pressure vessel completely pushes out the water in the pressure vessel from the pressure vessel and thereby possibly also compressed air in the pipeline, ie the water industry, is blown. Water in the water supply lines 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 the water filling is measured in the pressure equalization 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 be detected early and water can be added to the pressure tank. 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 the pressure vessel 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.
  • 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 with advantage at the outlet of the pressure vessel, preferably behind the throttle device, d. H. on the side of the throttle device which is located towards the pipeline. 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 can lead to limitations in terms of ease of integration into an existing cooling section.
  • the cost of a pressure vessel increases with its volume.
  • a pressure vessel with a volume in a range of 10 to 20 m 3 thus represents a good compromise.
  • Fig. 1 shows a cooling section 1 and its associated water supply system 20.
  • 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 pipe 2, through which the cooling section 1 can be supplied with water from a water reservoir 3, a partially filled with air 4a and 4w with water pressure vessel 4, a connecting pipe 5 for the exchange of 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 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.
  • 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.
  • the transport of the water from the water reservoir to the cooling section by liberated altitude energy of the water, since the water is brought from a relative to the cooling section 1 elevated water reservoir 3.
  • the pressure vessel 4 may be made of any material that is both pressure and coolant resistant, z. As steel or aluminum.
  • the shape of the pressure vessel 4 is chosen so that the pressure vessel 4 can withstand the internal pressures occurring;
  • the pressure vessel 4 has a cylindrical part which is closed by two outwardly curved bottoms or flat bottoms.
  • one or more holes are formed through which coolant 4w and air 4a supplied or discharged can be, 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. Conversely, the compressed air system 17 takes air through the combined air inlet and outlet 41, 42 from the pressure vessel 4, if the amount of air is to be reduced therein.
  • the water supply system 20 comprises a pressure sensor 10 for measuring the pressure in the pressure vessel 4 and a pressure sensor 11 for measuring the pressure in the pipeline 2.
  • the pressure readings of the two sensors 10, 11 are measured signals via signal lines 13 to a in Fig. 1 not specially signed control unit of the compressed air system 17 transferred.
  • the compressed air system 17 determines whether air must be conveyed into or out of the pressure vessel 4, so that the pressure conditions are adjusted so that when the water pressure in the pipe 2 drops, water from the pressure vessel 4 through the provided compound. 5 is pressed into the pipe 2.
  • the compressed air system 17 keeps the internal pressure of the pressure vessel 4 at a pressure in the pipeline 2 preferably as an average over a previous period, for. B. the last five seconds, has prevailed. As a result, pressure fluctuations in the pipe 2 are even more damped.
  • Fig. 2 shows a cooling section 1 and its associated water supply system 20 according to another embodiment.
  • the cooling section 1 is to the corresponding description Fig. 1 directed.
  • the water supply system 20 substantially corresponds to the in Fig. 1 shown, 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 are used.
  • FIG. 2 shown water supply system 20 Another difference between the in Fig. 1 and Fig. 2 shown water supply systems 20 is that in the in Fig. 2 shown water supply system 20, the transport of the water from the water reservoir 3 to the cooling section by means of a pump 18 takes place. Due to the damping and balancing effect of the pressure vessel 4 on the pressure conditions in the pipeline 2 caused by switching on and off the pump 18 caused pressure fluctuations are so far attenuated that they do not affect the operation of the cooling section 1, in particular the cooling of metal bands.
  • Fig. 3 shows a pressure vessel 4 immediately after switching on a cooling section 1.
  • the pipe 2 is suddenly a certain amount of water per unit time, ie a stream of water taken. Since due to the inertia and friction standing in the pipeline 2 water column can not flow instantaneously, it comes first to a pressure drop in the pipe 2.
  • This pressure drop in the pipe 2 is largely offset by the fact that water from the pressurized pressure vessel 4 is pushed out through the connecting line 5 in the pipe 2.
  • the arrow 15 indicates the flow direction of the water from the pressure vessel 4.
  • the outflow of water by a decrease in the water level 14 below a normal level 14n is noticeable.
  • the normal level 14n is established after a longer standstill or operation of the cooling line 1, ie under constant pressure conditions.
  • Fig. 4 shows that already Fig. 3 known pressure vessel 4, but, in contrast to Fig. 3 Immediately after switching off the cooling section 1. At the moment of closing the cooling road valve 9, the water flow previously flowing through the pipeline 2 is suddenly interrupted. Since due to the inertia and the friction flowing through the pipe 2 water column can not stop instantaneously, there is initially an increase in pressure in the pipe 2. This pressure increase in the pipe 2 is but largely compensated by the fact that water from the pipe 2 through the Connecting line 5 is pressed into the pressurized pressure vessel 4. 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 supplies the corresponding measured 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 controller may cause water to be fed into the pressure vessel 4. This is preferably done by driving a pump which pumps water into the pressure vessel 4 via a separate feed line. Alternatively, the water comes to fill the pressure vessel 4 from the pipe 2, wherein this water is forced through the connecting line 5 in the pressure vessel 4.
  • the in Fig. 5 shown pressure vessel 4 further comprises an air outlet 41 and an air inlet 42.
  • the pressure in the pressure vessel 4 can be controlled by supplying or 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, which has 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. 7 shows a sketch of a pipe 2 with a pump 18 at the entrance and a pressure equalizing vessel 4 at the exit.
  • a R 18 water is pumped from a water reservoir 3 to a cooling nozzle 8 by using the water pump.
  • the pressure p e prevails in the pipeline 2.
  • the pressure vessel 4 is coupled by a connecting line 5 to the pipeline 2 at a distance 1 from the pump 18.
  • located in the connecting line 5 acting as an attenuator shut-off valve 6 with a flow resistance R.
  • the air filling 4a of the pressure vessel 4 has a volume v.
  • the instantaneous pressure p a prevails.
  • an attenuation D of the throttle device 6 is estimated below.

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  • 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)
  • Power Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Pipeline Systems (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP20120161385 2012-03-27 2012-03-27 Procédé de stabilisation de pression Withdrawn EP2644718A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20120161385 EP2644718A1 (fr) 2012-03-27 2012-03-27 Procédé de stabilisation de pression
EP13715623.8A EP2817426B1 (fr) 2012-03-27 2013-03-18 Procédé de stabilisation de pression
PCT/EP2013/055547 WO2013143902A1 (fr) 2012-03-27 2013-03-18 Procédé de stabilisation de pression
CN201380027159.6A CN104321448B (zh) 2012-03-27 2013-03-18 用于稳定压力的方法
US14/388,690 US20150053272A1 (en) 2012-03-27 2013-03-18 Pressure stabilization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120161385 EP2644718A1 (fr) 2012-03-27 2012-03-27 Procédé de stabilisation de pression

Publications (1)

Publication Number Publication Date
EP2644718A1 true EP2644718A1 (fr) 2013-10-02

Family

ID=48087529

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20120161385 Withdrawn EP2644718A1 (fr) 2012-03-27 2012-03-27 Procédé de stabilisation de pression
EP13715623.8A Active EP2817426B1 (fr) 2012-03-27 2013-03-18 Procédé de stabilisation de pression

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13715623.8A Active EP2817426B1 (fr) 2012-03-27 2013-03-18 Procédé de stabilisation de pression

Country Status (4)

Country Link
US (1) US20150053272A1 (fr)
EP (2) EP2644718A1 (fr)
CN (1) CN104321448B (fr)
WO (1) WO2013143902A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104805260A (zh) * 2015-04-10 2015-07-29 北京首钢股份有限公司 冷却供水系统及其缓冲供水方法
EP3760326A1 (fr) * 2019-07-03 2021-01-06 Primetals Technologies Germany GmbH Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression
RU2786558C1 (ru) * 2019-07-03 2022-12-22 Прайметалз Текнолоджиз Джермани Гмбх Участок охлаждения, имеющий клапаны и напорные баки для предотвращения гидроударов

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EP3335812A1 (fr) * 2016-12-14 2018-06-20 Primetals Technologies Austria GmbH Installation de refroidissement de laminés
EP3895819B1 (fr) * 2020-04-14 2023-06-07 Primetals Technologies Germany GmbH Fonctionnement d'un dispositif de refrodissement avec une pression de fonctionnement minimale

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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
DE19520138A1 (de) * 1995-06-01 1996-12-05 Wsp Ingenieur Gmbh Kühlstrecke mit Wasserspritzdüsen für auf Rollen geführte Metallplatten und Stückbleche
JPH10296320A (ja) * 1997-04-23 1998-11-10 Nkk Corp 鋼板冷却装置
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104805260A (zh) * 2015-04-10 2015-07-29 北京首钢股份有限公司 冷却供水系统及其缓冲供水方法
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
EP3760326A1 (fr) * 2019-07-03 2021-01-06 Primetals Technologies Germany GmbH Section de refroidissement pourvue de soupapes et de récipients à pression permettant d'éviter les chocs de pression
WO2021001162A1 (fr) * 2019-07-03 2021-01-07 Primetals Technologies Germany Gmbh Section de refroidissement comportant des soupapes et des contenants sous pression pour empêcher des coups de bélier
CN114040821A (zh) * 2019-07-03 2022-02-11 首要金属科技德国有限责任公司 具有阀和用于避免压力冲击的压力容器的冷却段
RU2786558C1 (ru) * 2019-07-03 2022-12-22 Прайметалз Текнолоджиз Джермани Гмбх Участок охлаждения, имеющий клапаны и напорные баки для предотвращения гидроударов

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EP2817426B1 (fr) 2016-05-18
CN104321448B (zh) 2016-06-29
WO2013143902A1 (fr) 2013-10-03
EP2817426A1 (fr) 2014-12-31
US20150053272A1 (en) 2015-02-26
CN104321448A (zh) 2015-01-28

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