EP1533116B1 - Dispositif pour contrôler la température d'une machine à imprimer - Google Patents

Dispositif pour contrôler la température d'une machine à imprimer Download PDF

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Publication number
EP1533116B1
EP1533116B1 EP04027325A EP04027325A EP1533116B1 EP 1533116 B1 EP1533116 B1 EP 1533116B1 EP 04027325 A EP04027325 A EP 04027325A EP 04027325 A EP04027325 A EP 04027325A EP 1533116 B1 EP1533116 B1 EP 1533116B1
Authority
EP
European Patent Office
Prior art keywords
cooling
heat exchanger
water
path
process water
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.)
Expired - Fee Related
Application number
EP04027325A
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German (de)
English (en)
Other versions
EP1533116A1 (fr
Inventor
Thomas Haas
Nicholas Cruz
Steve Barberi
Lou J. Barberi
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.)
Technotrans SE
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Technotrans SE
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Publication date
Application filed by Technotrans SE filed Critical Technotrans SE
Publication of EP1533116A1 publication Critical patent/EP1533116A1/fr
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Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/22—Means for cooling or heating forme or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0054—Devices for controlling dampening

Definitions

  • the invention relates to a tempering device for printing presses, with a compression refrigeration system with a condenser and an evaporator in which circulates a refrigerant, a free cooling circuit in which a coolant, in particular water circulates, a process water circuit in which a coolant for pressure rollers or a dampening solution for the Offset pressure circulates, and heat exchange means for cooling the process water circuit using the compression refrigeration system and / or the free-cooling circuit.
  • Temperature control systems for printing machines are known in various embodiments. As a rule, these are cooling systems, since the operation of a printing press inevitably causes a certain amount of heating, which can impair the print quality.
  • the cooling can be done by water cooling the friction rollers using a continuous line system or - in offset printing - by a cooled dampening solution, which is applied to the rollers. Occasionally, cooled air is also blown onto certain parts or assemblies of the presses.
  • Indirectly cooled systems are usually water cooled.
  • the process water in an integrated water / water heat exchanger is cooled by the cooling water of an external source.
  • the process water is also cooled by mixing with the cooling water of the external source. Since a separation of the circuits is inevitably not possible, this procedure is not suitable for cooling dampening solution.
  • Directly cooled systems with a water-cooled condenser in the refrigeration circuit usually draw their cooling water from central cooling water systems. These are often systems with free coolers or evaporative coolers.
  • the temperature level of the cooling water of these external cooling systems is always low enough to ensure sufficient cooling of the water-cooled condenser of the refrigeration system. Also, in most cases, the temperature level is sufficient to provide sufficient cooling to other peripherals on printing machines such as air cabinets or drying cabinets.
  • the temperature level of this cooling water is not always low enough to use this by means of a water / water heat exchanger for direct cooling of the process water for cooling the distributor rollers in the printing press, appropriate systems are currently not used.
  • the conventional systems have the particular disadvantage that they require a high energy input and have correspondingly high operating costs.
  • the invention is therefore based on the object to provide a cooling device for printing presses, which manage with significantly lower energy consumption and allow effective temperature control of different tempering, without causing a mixing of the cooling water and the Temperierwasserströme.
  • a tempering of the above is characterized in that a three-media heat exchanger is provided, in which the process water circuit is brought into heat exchange both with the compression circuit and with the free cooling circuit.
  • a three-medium heat exchanger is to be understood as meaning a heat exchanger which is flowed through in separate chambers by the compression refrigeration cycle and the free cooling circuit, while the process water or tempering medium cycle passes through both chambers in a separate line system.
  • the two chambers of the three-media heat exchanger form a spatial unit, that is, for example, a common housing with a dividing wall or represent separate units.
  • the circle referred to as a free-cooling circuit may, for example, have a water cooler, which is flowed through by a fan of outside air. But it can also be another source of relatively cool water.
  • the free cooling circuit can run parallel to the three-media heat exchanger, the condenser heat exchanger of the compression refrigeration system and used to condense the circulating in the compression refrigeration cycle refrigerant.
  • the chamber of the three-medium heat exchanger through which the compression refrigeration cycle flows preferably forms the evaporator of the compression refrigeration cycle.
  • a temperature control device of the described type does not require any additional cooling by the compression refrigeration system, such as the ambient temperature of the air used for cooling the cooling water, or the temperature of another cooling water source has a value sufficiently below the process water temperature. If the cooling water temperature is too high for the pure direct cooling of the process water, the cooling water flow is split. He may in this case either pre-cool the process water to a certain extent, as long as the cooling water flow temperature is below the process water temperature, or cool the water-cooled condenser evaporator of the compression refrigeration system, which now has to be switched on.
  • the free cooling circuit can only be used solely for cooling the condenser-evaporator of the compression refrigeration system.
  • the process water first passes through that of the two chambers of the three-media heat exchanger, which is flowed through by the cooling water of the free cooling circuit, so that the mentioned effect of precooling can be used, provided that the temperature conditions are suitable.
  • a particular advantage of the inventive solution is that the process water is not only with the compression refrigeration cycle, but also with the free cooler cycle via heat exchangers in heat exchange, that is not about the free cooler circuit is used directly as a process water circuit.
  • the process water circuit can be formed by a dampening solution for the offset pressure, while the free cooling circuit contains water, for example, water with antifreeze.
  • Each circuit may have piping systems of materials which are particularly suitable for the transported medium, for example stainless steel in the case of corrosive media.
  • the single figure shows a possible embodiment of the invention.
  • a three-media heat exchanger is designated 10.
  • This three-media heat exchanger 10 has a first chamber 12 and a second chamber 14, which are combined in the illustrated embodiment into a spatial unit within a common housing and separated only by a partition wall 16.
  • the two chambers can also form separate units.
  • In the first chamber 12 enters an inlet line 18 of a process water circuit, and from the chamber 12 exits on the other hand, an outlet line 20 of this process water circuit.
  • the two lines 18,20 are connected inside the two chambers with raw coils 22, in which the process water flows through the two chambers 12,14.
  • the inlet line 18 and the outlet line 20 are connected outside of the three-media heat exchanger with a printing press, not shown.
  • the coil is outside the water-air cooler 28 in a flow line 36 a free cooler circuit, the return line 38 on the other hand enters the water-air cooler 28 and is connected to the coil 32.
  • the supply line 36 further includes a three-way valve 40 into which at the same time a coming from the return line 38 bypass line 42 occurs.
  • a three-way valve 40 which has a servomotor 44 and can be controlled in a manner not shown by means of an electronic control function of the flow temperature of the cooling water, a portion of the cooling water can be fed directly from the return line 38 in the flow line, if, for example, in the Water-air cooler 28 cooled cooling water is too cold for the need.
  • a pump 46 Downstream of the three-way valve 40 is a pump 46, and then to this a three-way valve 48 with actuator 50th
  • From this three-way valve 48 from the cooling water can be passed depending on the valve position on the one hand to the left in the drawing to the inlet 24 of the left chamber 12 of the three-media heat exchanger 10.
  • the cooling water can also flow to the right to a condenser heat exchanger of a compression refrigeration system, which will be discussed later.
  • the outlet 26 of the left chamber 12 of the three-medium heat exchanger 10 and an unspecified outlet of the condenser heat exchanger 50 are combined to the return line 38 at a point 52.
  • the three-way valve 48 is controlled so that, depending on the desired mode of operation, the cooling water is directed to one side or the other or distributed proportionately.
  • the process water circuit in the left chamber 12 of the three-media heat exchanger 10 alone can be cooled.
  • This compression refrigeration cycle 54 includes a compressor 56, the aforementioned condenser heat exchanger 50, an expansion valve 58 and an evaporator formed by the second chamber 14 of the three-media heat exchanger.
  • the said four elements are connected together in a closed circuit, as is customary in refrigerators.
  • a temperature sensor 62 detects the temperature in the conduit between the evaporator 14 and the compressor 56 and outputs signals used to control the expansion valve 58.
  • the mode of action of the temperature control device will be described below.
  • a water-air cooler of the type shown, it will depend primarily on the outside temperature, whether the cooling of the printing press can be achieved only with the help of the cooling water of the free cooling circuit or the Kompressionskarlte Vietnamese must be switched on. If the outside temperature is sufficiently low, then only the cooling water circuit for cooling must be used by the three-way valve 48 is opened to the left and the cooling water flows through the left chamber 12 of the three-media heat exchanger 10 in a closed circle. If the temperature is too low, then already heated cooling water from the return line 38 can be mixed into the supply line via the three-way valve 40.
  • the process water first passes through the left chamber 12 in the drawing, in which a heat exchange with the cooling water of the free cooling circuit takes place, and then the chamber 14, which is formed by the evaporator of the Kompressionskarltekieris.
  • cooling water of the free cooling circuit is also no longer suitable for precooling the process water, it can at least be used in the condenser heat exchanger 50 of the compression refrigeration cycle, which now carries out the cooling of the process water via the right-hand chamber 14 of the three-media heat exchanger alone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (5)

  1. Dispositif d'équilibrage de la température pour des machines d'impression, comprenant une installation frigorifique à compression dotée d'un condensateur (50) et d'un évaporateur (10, 14) dans lequel circule un fluide frigorigène, comprenant un circuit de refroidisseur libre dans lequel circule un agent réfrigérant, en particulier de l'eau,
    comprenant un circuit d'eau de processus dans lequel circule un agent réfrigérant pour des cylindres d'impression ou un agent d'humidification pour l'impression offset, et
    comprenant des moyens d'échange de chaleur pour le refroidissement du circuit d'eau de processus à l'aide de l'installation frigorifique à compression et/ou du circuit de refroidisseur libre,
    caractérisé en ce que l'on a prévu un échangeur de chaleur à trois matières (10) dans lequel le circuit d'eau de processus est amené en échange de chaleur aussi bien avec le circuit frigorifique à compression qu'avec le circuit de refroidisseur libre.
  2. Dispositif d'équilibrage de la température selon la revendication 1, caractérisé en ce que l'échangeur de chaleur à trois matières (10) présente deux chambres séparées (12, 14) qui sont traversées par le circuit frigorifique à compression d'une part et par le circuit de refroidisseur libre d'autre part et en ce que le circuit d'eau de processus s'écoule à travers les deux chambres dans un système séparé de conduites.
  3. Dispositif d'équilibrage de la température selon la revendication 2, caractérisé en ce que le circuit d'eau de processus s'écoule tout d'abord à travers la chambre (12) qui est reliée avec le circuit de refroidisseur libre, et ensuite à travers la chambre (14) qui est formée par l'évaporateur du circuit frigorifique à compression.
  4. Dispositif d'équilibrage de la température selon l'une des revendications précédentes, caractérisé en ce que le circuit de refroidisseur libre s'écoule à travers l'échangeur de chaleur à condensateur (50) de l'installation frigorifique à compression parallèlement à l'échangeur de chaleur à trois matières (10).
  5. Dispositif d'équilibrage de la température selon l'une des revendications 1 à 3,
    caractérisé en ce que la chambre (14) de l'échangeur de chaleur à trois matières (10), traversée par le circuit frigorifique à compression, forme l'évaporateur de l'installation frigorifique à compression.
EP04027325A 2003-11-21 2004-11-17 Dispositif pour contrôler la température d'une machine à imprimer Expired - Fee Related EP1533116B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354454A DE10354454B4 (de) 2003-11-21 2003-11-21 Temperiervorrichtung für Druckmaschinen
DE10354454 2003-11-21

Publications (2)

Publication Number Publication Date
EP1533116A1 EP1533116A1 (fr) 2005-05-25
EP1533116B1 true EP1533116B1 (fr) 2009-09-23

Family

ID=34428843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027325A Expired - Fee Related EP1533116B1 (fr) 2003-11-21 2004-11-17 Dispositif pour contrôler la température d'une machine à imprimer

Country Status (3)

Country Link
US (1) US7159518B2 (fr)
EP (1) EP1533116B1 (fr)
DE (2) DE10354454B4 (fr)

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DE202005021656U1 (de) 2005-01-05 2009-03-12 Koenig & Bauer Aktiengesellschaft Systeme zur Temperierung von Bauteilen einer Druckmaschine
DE102005015954B4 (de) * 2005-04-07 2007-01-04 Technotrans Ag Druckmaschine mit Temperiervorrichtung
WO2008076120A1 (fr) * 2006-12-21 2008-06-26 Carrier Corporation Contrôle de limitation sans refroidissement pour des systèmes de climatisation
US20100070082A1 (en) * 2006-12-27 2010-03-18 Carrier Corporation Methods and systems for controlling an air conditioning system operating in free cooling mode
ES2604463T3 (es) * 2006-12-28 2017-03-07 Carrier Corporation Procedimientos y sistemas para el control de sistemas de aire acondicionado que tienen un modo de refrigeración y un modo de refrigeración libre
DE102007008172B4 (de) 2007-02-19 2009-01-15 Technotrans Ag Temperiervorrichtung für eine Druckmaschine
DE102007052145A1 (de) * 2007-10-31 2009-05-14 Technotrans Ag Wärmetauscher für Teile einer Druckmaschine
DE102007053080A1 (de) * 2007-11-07 2009-05-20 Technotrans Ag Temperiersystem für Druckmaschinen mit mehreren Temperaturniveaus
DE102008009996A1 (de) * 2008-02-19 2009-08-20 Baldwin Germany Gmbh Druckmaschinentemperiersystem
EP2182309A1 (fr) * 2008-10-28 2010-05-05 Siemens Aktiengesellschaft Agencement pour le refroidissement d'une machine électrique
US20100242532A1 (en) * 2009-03-24 2010-09-30 Johnson Controls Technology Company Free cooling refrigeration system
US11199356B2 (en) 2009-08-14 2021-12-14 Johnson Controls Technology Company Free cooling refrigeration system
SG186785A1 (en) * 2010-06-23 2013-02-28 Earl Keisling Space-saving high-density modular data center and an energy-efficient cooling system
JP5751857B2 (ja) * 2011-02-22 2015-07-22 キヤノン株式会社 記録装置
CA2828694A1 (fr) 2011-03-02 2012-09-07 Earl Keisling Systemes de boitier de donnees modulaire haute densite compacts et systemes de refroidissement a faible consommation d'energie
DE102012103850B3 (de) * 2012-05-02 2013-07-25 Windmöller & Hölscher Kg Vorrichtung zur Einstellung eines Betriebsparameters einer Farbe für einen Druckprozess einer Rotationsdruckmaschine sowie Verfahren hierzu
DE102013003919A1 (de) * 2013-03-07 2014-09-11 Peter Wolf Verfahren zur optimalen Wärmeenergierückgewinnung aus Abwärmequellen
WO2016057854A1 (fr) 2014-10-08 2016-04-14 Inertech Ip Llc Systèmes et procédés permettant de refroidir un équipement électrique
CN105196698B (zh) * 2015-11-03 2018-01-02 江苏利特尔绿色包装股份有限公司 印刷机组冷却辊恒温控制箱
SG10202107907YA (en) 2016-03-16 2021-08-30 Inertech Ip Llc System and methods utilizing fluid coolers and chillers to perform in-series heat rejection and trim cooling
IT201700013362A1 (it) * 2017-02-07 2018-08-07 Schneider Electric It Corp Cooling System with reduced Pressure Drop
CN107618260B (zh) * 2017-11-14 2023-07-21 武汉红金龙印务股份有限公司 一种适用于印刷工艺的冷却系统
CN111267470A (zh) * 2020-03-06 2020-06-12 陈美奇 一种印刷设备用印刷辊冷却装置

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DE4442072B4 (de) * 1994-11-25 2005-11-10 Technotrans Ag Anordnung zur Temperierung eines Feuchtmittels und eines Kühlfluids für ausgewählte Walzen einer Druckmaschine
US5626102A (en) * 1996-03-14 1997-05-06 Nir; Ari Heat recovery system for a boiler and a boiler provided therewith
DE29608045U1 (de) * 1996-05-03 1996-07-25 Technotrans Gmbh Anordnung zur Temperierung eines Feuchtmittels und/oder ausgewählter Walzen einer Druckmaschine
FR2751402B1 (fr) * 1996-07-19 1998-10-09 Packinox Sa Installation d'echange thermique entre au moins trois fluides
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Also Published As

Publication number Publication date
US20050150410A1 (en) 2005-07-14
DE10354454B4 (de) 2009-11-26
DE502004010104D1 (de) 2009-11-05
EP1533116A1 (fr) 2005-05-25
US7159518B2 (en) 2007-01-09
DE10354454A1 (de) 2005-06-30

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