EP1048781A2 - Kühlsystem für eine Papier- oder Kartonmaschine - Google Patents
Kühlsystem für eine Papier- oder Kartonmaschine Download PDFInfo
- Publication number
- EP1048781A2 EP1048781A2 EP00102934A EP00102934A EP1048781A2 EP 1048781 A2 EP1048781 A2 EP 1048781A2 EP 00102934 A EP00102934 A EP 00102934A EP 00102934 A EP00102934 A EP 00102934A EP 1048781 A2 EP1048781 A2 EP 1048781A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- circuit
- water
- heat
- cooling 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 64
- 239000000498 cooling water Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000012080 ambient air Substances 0.000 claims description 4
- 239000013505 freshwater Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/20—Waste heat recovery
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
Definitions
- the invention relates to a cooling system for removal excess process and / or machine heat from one Paper or board machine.
- a problem when using such cooling systems in one Paper machine lies in the fact that the cooling liquids that are on take over the cooling tasks of the machine, mostly oily, oily or other liquids with a high boiling point that are sometimes also lubrication tasks take over or at least protect against corrosion. These coolants are generally harmful to the environment and also harmful in the papermaking process if they are in the Process cycle of the paper machine arrive.
- the inventor proposes an improved cooling system Removal of excess process and / or machine heat a paper or board machine, with at least one closed primary cooling circuit (primary circuit), which dissipates the excess heat per primary circuit with at least one primary fluid / water heat exchanger Transfer of heat to at least one closed one secondary cooling circuit (secondary circuit), and in Secondary circuit at least one secondary water / water heat exchanger, to transfer the heat of the Secondary circuit to a tertiary cooling water line Paper or board machine with a cooling water supply and Cooling water drain to and from the water / water heat exchanger.
- primary circuit closed primary cooling circuit
- secondary circuit secondary circuit
- Secondary circuit at least one secondary water / water heat exchanger
- Cooling system provides that the tertiary cooling water line part a tertiary cooling water circuit (tertiary circuit) represents and has a cooling tower that the releases excess heat to the ambient air.
- tertiary circuit represents and has a cooling tower that the releases excess heat to the ambient air.
- the tertiary cooling water circuit has a cooling water storage tank, through which the Cooling water to the cooling tower and possibly the Manufacturing process is fed.
- the tertiary cooling water circuit between Cooling tower and secondary heat exchanger with one Intermediate tanks for the cooling water must be equipped.
- the individual units are like Heat exchangers, tanks, cooling tower with each other with pipes connected to each other for the transport of the cooling liquids and may have appropriate ones Funding agencies.
- FIG. 1 shows an inventive cooling system Paper machine with four arranged in parallel Primary circuits with a lead 3.1 - 3.4 and a return 4.1 - 4.4, which the devices 1.1 - 1.4 (E.g. bearings, press rolls, other machine parts, etc.) with Cool with the help of a flowing fluid - here oil.
- Primary fluid / water heat exchangers 2.1 - 2.4 are located in the primary circuits between the preliminary flows 3.1 - 3.4 and the return flows 4.1 - 4.4, with the aid of which the waste heat is transferred to a further secondary cooling circuit 5, 6.
- the primary cooling circuits form a closed circuit which has indirect points of contact only in the area of the primary heat exchangers.
- the secondary circuit also has a flow 5 and a return 6, the primary heat exchangers 2.1 - 2.4 parallel "to each other
- the return 6 is equipped with its own feed pump 7 which conveys the heated water of the secondary cooling circuit 5, 6 to a further secondary water / water heat exchanger 8.
- the secondary water / water heat exchanger 8 of the secondary Cooling circuit is the heated water of the Secondary cooling circuit with a tertiary cooling water line Flow 9 and drain 10 cooled.
- the secondary cooling circuit is also opposite the tertiary cooling water line completed.
- This configuration of the cooling circuits ensures that even through possible leakages in the area of the primary Heat exchanger 2.1 - 2.4 pollutants from the primary Circuits at most penetrate into the secondary circuit can, but against the one connected to the outside world tertiary cooling water line additionally over the secondary Heat exchanger 8 are sealed off. In the event of a leak cleaning of the secondary circuit is relatively easy and inexpensive possible and costly environmental damage or Production downtimes due to contaminated process water can be avoided.
- FIG. 2 An improvement of the cooling system according to the invention is in shown in Figure 2.
- This figure shows - dotted outlined area - as a starting point the above described cooling circuit from Figure 1.
- the lead 9 and the drain 10 in / out of the secondary Water / water heat exchanger 8 connected to a circuit, which is passed over a cooling tower 11.
- the heated water of the outlet 10 is included Cooled with the help of ambient air flowing through.
- the cooling tower 11 has support for this cooling air flow via a fan 16. This significantly reduces the amount of fresh water needed since the cooling is additionally supported by the ambient air and a tertiary cooling circuit 9, 10 can be formed. Fresh water is therefore only in the amount of what is actually required fresh process water required, which the tertiary Cooling circuit can then be removed.
- an intermediate container 12 provided, in which fresh water if necessary via a Fresh water supply 19 can be supplied. Still is between secondary heat exchanger 8 and cooling tower 11 Cooling water collecting container 13 arranged, from which via a Feed pump 18 removed the process water required in each case and can be supplied to the manufacturing process 14. The Conveying the cooling water from the cooling water collecting tank 13 Another feed pump 17 takes over to the cooling tower 11.
Landscapes
- Paper (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
- mindestens einem geschlossenen primären Kühlkreislauf (3.1, 4.1; 3.2, 4.2; 3.3, 4.3; 3.4, 4.4), welcher überschüssige Wärme ableitet,
- je Primärkreislauf (3.1, 4.1; 3.2, 4.2; 3.3, 4.3; 3.4, 4.4) mindestens einem primären Fluid/Wasser-Wärmetauscher (2.1 - 2.4) zur Übertragung der Wärme auf mindestens einen geschlossenen sekundären Kühlkreislauf (5, 6) (Sekundärkreislauf), und
- im sekundären Kühlkreislauf (5, 6) mindestens einem sekundären Wasser/Wasser-Wärmetauscher (8), zur Übertragung der Wärme des sekundären Kühlkreislaufes (5, 6) (Sekundärkreislaufes) an einen tertiären Kühlwasserstrang mit Kühlwasservorlauf (9) und Kühlwasserablauf (10) der Papier- oder Kartonmaschine.
Description
- Figur 1:
- Zweikreis-Kühlsystem ohne Kühlturm;
- Figur 2:
- Zweikreis-Kühlsystem mit zusätzlichem Kühlturm.
- 1.1-1.4
- zu kühlende Vorrichtungen
- 2.1-2.4
- primäre Fluid/Wasser-Wärmetauscher
- 3.1-3.4
- primärer Kühlwasservorlauf
- 4.1-4.4
- primärer Kühlwasserrücklauf
- 5
- sekundärer Kühlwasservorlauf
- 6
- sekundärer Kühlwasserrücklauf
- 7
- Förderpumpe
- 8
- sekundärer Wasser/Wasser-Wärmetauscher
- 9
- tertiärer Vorlauf
- 10
- tertiärer Ablauf
- 11
- Kühlturm
- 12
- Zwischenbehälter
- 13
- Kühlwasser-Sammelbehälter
- 14
- Papierherstellungsprozeß
- 15
- Förderpumpe
- 16
- Ventilator
- 17
- Förderpumpe
- 18
- Förderpumpe
- 19
- Frischwasserzufuhr
Claims (5)
- Kühlsystem zur Abführung überschüssiger Prozeß- und/oder Maschinenwärme aus einer Papier- oder Kartonmaschine mit:1.1 mindestens einen geschlossenen primären Kühlkreislauf (3.1, 4.1; 3.2, 4.2; 3.3, 4.3; 3.4, 4.4) (Primärkreislauf), welcher überschüssige Wärme ableitet,1.2 je Primärkreislauf (3.1, 4.1; 3.2, 4.2; 3.3, 4.3; 3.4, 4.4) mindestens einem primären Fluid/Wasser-Wärmetauscher (2.1 - 2.4) zur Übertragung der Wärme auf mindestens einen geschlossenen sekundären Kühlkreislauf (5, 6) (Sekundärkreislauf), und1.3 im sekundären Kühlkreislauf (5, 6) mindestens einem sekundären Wasser/Wasser-Wärmetauscher (8), zur Übertragung der Wärme des sekundären Kühlkreislaufes (5, 6) (Sekundärkreislaufes) an einen tertiären Kühlwasserstrang mit Kühlwasservorlauf (9) und Kühlwasserablauf (10) der Papier- oder Kartonmaschine.
- Kühlsystem gemäß dem voranstehenden Anspruch 1, dadurch gekennzeichnet, daß der Primärkreislauf (3.1, 4.1; 3.2, 4.2; 3.3, 4.3; 3.4, 4.4) Öl als Wärmeträger aufweist.
- Kühlsystem gemäß einem der voranstehenden Ansprüche 1-2, dadurch gekennzeichnet, daß der tertiäre Kühlwasserstrang mit Kühlwasservorlauf (9) und Kühlwasserablauf (10) Teil eines Kühlwasserkreislaufes (Tertiärkreislauf) ist, über einen Kühlturm (11) verfügt und die überschüssige Wärme an die Umgebungsluft abgibt.
- Kühlsystem gemäß dem voranstehenden Anspruch 3, dadurch gekennzeichnet, daß der tertiäre Kühlwasserkreislauf (9, 10) einen Kühlwasser-Sammelbehälter (12) aufweist, über den das Kühlwasser dem Kühlturm (11) und gegebenenfalls dem Fertigungsprozeß zugeführt wird.
- Kühlsystem gemäß einem der voranstehenden Ansprüche 3-4, dadurch gekennzeichnet, daß der tertiäre Kühlwasserkreislauf (9, 10) zwischen dem Kühlturm (11) und dem sekundären Wärmetauscher (8) über einen Zwischenbehälter (12) verfügt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19919877 | 1999-04-30 | ||
| DE19919877A DE19919877A1 (de) | 1999-04-30 | 1999-04-30 | Kühlsystem für eine Papier- oder Kartonmaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1048781A2 true EP1048781A2 (de) | 2000-11-02 |
| EP1048781A3 EP1048781A3 (de) | 2001-03-28 |
| EP1048781B1 EP1048781B1 (de) | 2005-11-09 |
Family
ID=7906527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00102934A Expired - Lifetime EP1048781B1 (de) | 1999-04-30 | 2000-02-14 | Kühlsystem für eine Papier- oder Kartonmaschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6293113B1 (de) |
| EP (1) | EP1048781B1 (de) |
| AT (1) | ATE309409T1 (de) |
| DE (2) | DE19919877A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008040216A1 (de) | 2008-07-07 | 2010-01-14 | Voith Patent Gmbh | Kühlsystem |
| CN106196799A (zh) * | 2016-08-25 | 2016-12-07 | 浙江夏王纸业有限公司 | 一种利用公用输水冷源量来置换生产原纸热量装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532777A (en) * | 1983-05-23 | 1985-08-06 | University Of Arizona Foundation | Two stage cooling system |
| DE3427624A1 (de) * | 1984-07-26 | 1986-02-06 | Albert-Frankenthal Ag, 6710 Frankenthal | Zylinder fuer bahnfoermiges material verarbeitende maschinen |
| US5105633A (en) * | 1991-01-28 | 1992-04-21 | Venturedyne, Ltd. | Solvent recovery system with means for supplemental cooling |
| US5524442A (en) * | 1994-06-27 | 1996-06-11 | Praxair Technology, Inc. | Cooling system employing a primary, high pressure closed refrigeration loop and a secondary refrigeration loop |
| GB2326890B (en) * | 1996-04-09 | 2000-03-29 | Schwaebische Huettenwerke Gmbh | Steam-heated roller with cooling system |
| FI104284B (fi) | 1996-05-23 | 1999-12-15 | Valmet Corp | Menetelmä paperitehtaan tuoreen veden kulutuksen pienentämiseksi jäähdytystornin avulla sekä jäähdytystorni |
| DE19731852A1 (de) * | 1997-07-24 | 1999-01-28 | Asea Brown Boveri | Generatorkühlsystem |
-
1999
- 1999-04-30 DE DE19919877A patent/DE19919877A1/de not_active Withdrawn
-
2000
- 2000-02-14 DE DE50011538T patent/DE50011538D1/de not_active Expired - Lifetime
- 2000-02-14 AT AT00102934T patent/ATE309409T1/de active
- 2000-02-14 EP EP00102934A patent/EP1048781B1/de not_active Expired - Lifetime
- 2000-04-24 US US09/557,404 patent/US6293113B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE50011538D1 (de) | 2005-12-15 |
| ATE309409T1 (de) | 2005-11-15 |
| DE19919877A1 (de) | 2000-11-02 |
| EP1048781A3 (de) | 2001-03-28 |
| EP1048781B1 (de) | 2005-11-09 |
| US6293113B1 (en) | 2001-09-25 |
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