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EP3321419B1 - Mehrstufige waschsäule und vorrichtung zum trocknen von feuchtem material mit mehrstufiger waschsäule - Google Patents

Mehrstufige waschsäule und vorrichtung zum trocknen von feuchtem material mit mehrstufiger waschsäule Download PDF

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Publication number
EP3321419B1
EP3321419B1 EP16197891.1A EP16197891A EP3321419B1 EP 3321419 B1 EP3321419 B1 EP 3321419B1 EP 16197891 A EP16197891 A EP 16197891A EP 3321419 B1 EP3321419 B1 EP 3321419B1
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EP
European Patent Office
Prior art keywords
washing column
multi stage
liquid
liquid inlet
stage washing
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Application number
EP16197891.1A
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English (en)
French (fr)
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EP3321419A1 (de
Inventor
Johannes Theodorus Gerardus Marie EURLINGS
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RWE Generation NL BV
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RWE Generation NL BV
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Priority to DK16197891.1T priority Critical patent/DK3321419T3/da
Priority to PL16197891T priority patent/PL3321419T3/pl
Priority to EP16197891.1A priority patent/EP3321419B1/de
Publication of EP3321419A1 publication Critical patent/EP3321419A1/de
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Publication of EP3321419B1 publication Critical patent/EP3321419B1/de
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    • 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

Definitions

  • the present invention relates to a use of a multi stage washing column. Moreover, the present invention relates to a device for drying wetted material comprising a multi stage washing column.
  • wetted material pursuant to the present invention can be wetted paper from a paper mill. Nevertheless, the present invention is not restricted to wetted paper as wetted material.
  • the wetted material also can be wetted malt, wetted food, or wetted paint.
  • the present invention will be described in the following with regard to wetted paper as wetted material.
  • the multi stage washing column according to the use according to the present invention can be used in a device for drying wetted paper, wetted paint, wetted malt, wetted food, and so on.
  • the relevant temperatures for drying paper 60 °C - 150 °C
  • the relevant temperatures for drying paper are at an elevated temperature level compared to the temperatures (10 °C to 70 °C) mentioned with regard to the process of drying wetted malt.
  • the object of the present invention is to provide a device for drying wetted material and a use of a washing column which can be used in a device for drying wetted material, wherein the washing column enables a more efficient heat energy recovery and exhibits less liquid (water) consumption for recovering the heat energy of gas exiting the device for drying wetted material.
  • the invention is directed to the use of a multi stage washing column that comprises a gas inlet for introducing a gas into the multi stage washing column, a gas outlet for exiting the gas out of the multi stage washing column, a hot liquid inlet for introducing liquid into the multi stage washing column, a cold liquid inlet for introducing liquid into the multi stage washing column, and a liquid outlet for exiting the liquid out of the multi stage washing column, wherein in a mounting position of the multi stage washing column the cold liquid inlet is positioned above the hot liquid inlet.
  • fluidly connected means in general that the described parts are directly connected or indirectly connected with other parts in between. In any case a fluid stream is possible between the described parts.
  • thermally connected means in general that the described parts are directly connected or indirectly connected with other parts in between. In any case a transfer of thermal energy is possible between the described parts.
  • Gas in the meaning of the present invention can for example be humid air and/or a mixture of air and steam.
  • Liquid in the meaning of the present invention can for example be water.
  • the multi stage washing column according to the use according to the present invention exhibits the advantage that the thermal energy of the gas introduced into the multi stage washing column can be more effectively extracted and therefore can be more effectively used by other devices (for example for heating of a drying device, for heating of water, for heating of a building and so on) which are fluidly and/or thermally connected with the multi stage washing column.
  • other devices for example for heating of a drying device, for heating of water, for heating of a building and so on
  • the temperature of the gas introduced in the multi stage washing column exhibits a high temperature, for example in the range of 150°C, the thermal energy being the sum of sensible and latent heat of the gas can be extracted by the multi stage washing column very effectively.
  • Gas introduced into the multi stage washing column exhibits a dew point which depends on the temperature of the gas and the percentage of humidity of the gas which also can be named the moisture content of the gas.
  • Liquid exhibiting a temperature slightly below the dew point of the gas introduced into the multi stage washing column can be introduced into the multi stage washing column via the hot liquid inlet. Since the humidity absorption capacity of gas and air, respectively, rises exponentially with the temperature of the gas/air, a very high percentage of the humidity of the gas/air condensates when the gas/air is cooled down by the liquid introduced into the multi stage washing column via the hot liquid inlet.
  • the liquid introduced into the multi stage washing column via the hot liquid inlet is heated by the condensation of the humidity of the gas/air and by heat transfer from the gas/air to the liquid. For that reason the temperature of the liquid collected at a bottom of the multi stage washing column is considerably high and therefore the heat energy of the liquid can be very effectively used by other devices (e.g. a heat pump).
  • the gas ascending inside the multi stage washing column exhibits a reduced temperature, a reduced humidity and therefore a reduced dew point. Liquid exhibiting a temperature slightly below the reduced dew point of the gas ascended in the multi stage washing column can be introduced into the multi stage washing column via the cold liquid inlet.
  • the thermal energy of the gas/air introduced into the multi stage washing column can be extracted wherein at the same time the temperature of the liquid collected inside the multi stage washing column at its bottom is only slightly below the dew point of the gas introduced into the multi stage washing column. Therefore, the thermal energy of the gas is transferable to other devices very effectively.
  • a correspondingly designed multi stage washing column can be named a 2-stage washing column.
  • the humidity absorption capacity of the gas/air can also be named water vapor capacity of the gas/air.
  • the multi stage washing column also can be named a multi stage heat recovery washing column.
  • the hot liquid inlet can also be named a washing column hot liquid inlet or a first liquid inlet or a first washing column liquid inlet or a hot water inlet.
  • the cold liquid inlet can also be named a washing column cold liquid inlet or a third liquid inlet or a third washing column liquid inlet or a cold water inlet.
  • the liquid outlet can also be named a washing column liquid outlet or a water outlet or a washing column water outlet. In the mounting position of the multi stage washing column the liquid outlet is positioned underneath the hot liquid inlet.
  • the hot liquid inlet is adapted for introducing a liquid (preferably water) of a first temperature into the washing column.
  • the first temperature can preferably be in the range of 65°C to 75°C.
  • the cold liquid inlet is adapted for introducing a liquid (preferably water) of a third temperature into the washing column.
  • the third temperature is lower than the first temperature.
  • the third temperature can preferably in the range of 10°C to 55°C. Consequently, a temperature of the liquid introduced into the washing column via the hot liquid inlet has to be higher than a temperature of the liquid introduced into the washing column via the cold liquid inlet so that the multi stage washing column can function in its designated manner.
  • the gas introduced into the multi stage washing column and exiting the multi stage washing column can be a mixture of air (breathing air) and moisture, wherein the gas exiting the multi stage washing column exhibits a lower percentage of absorbed humidity/water.
  • the gas outlet is positioned above the cold liquid inlet which is positioned above the hot liquid inlet which is positioned above the gas inlet.
  • the liquid outlet is positioned underneath the gas inlet.
  • the multi stage washing column preferably is designed in that way that in the mounting position of the multi stage washing column the gas outlet is positioned above the gas inlet.
  • the multi stage washing column further comprises an intermediate temperature liquid inlet, wherein the intermediate temperature liquid inlet is positioned between the hot liquid inlet and the cold liquid inlet.
  • the correspondingly designed multi stage washing column exhibits the advantage that thermal energy of hot gas (e.g. a mixture of hot air and steam) introduced into the multi stage washing column via the gas inlet can be even more effectively extracted, wherein the liquid/water collected at the bottom of the multi stage washing column exhibits a higher temperature, and wherein the overall liquid consumption required for cooling down the gas and for drying the gas is reduced. Since the liquid collected at the bottom of the multi stage washing column exhibits a higher temperature, the thermal energy of the liquid can be more effectively transferred to another device (for example a transfer via a heat pump).
  • a correspondingly designed multi stage washing column can be named a 3-stage washing column.
  • the multi stage washing column comprises a plurality of liquid inlets, wherein in the mounting position of the multi stage washing column each liquid inlet is arranged at a different vertical position of the multi stage washing column.
  • the multi stage washing column can exhibit four, five, six, or even more liquid inlets.
  • the number of liquid inlets which is identical with the number of stages of the multi stage washing column, is a function of the dew point of the incoming venting gas.
  • a liquid inlet of the multi stage washing column is adapted for introducing a liquid exhibiting a temperature which is lower than a temperature of liquid introduced into the multi stage washing column via a liquid inlet which is positioned vertically underneath said liquid inlet. Therefore, the temperature of liquid introduced into the multi stage washing column via the plurality of liquid inlets decreases with higher positioning of the liquid inlets.
  • a device for drying wetted material which comprises at least one drying device for accommodating the wetted material, an above described multi stage washing column, and a heat pump, wherein the liquid outlet of the multi stage washing column is fluidly connected with a first heat pump liquid inlet and a first liquid outlet of the heat pump is fluidly connected with the hot liquid inlet of the multi stage washing column.
  • a second heat pump inlet is fluidly connected with a with a hot fluid source, and a second heat pump outlet is fluidly connected with a drying device gas inlet and a drying device outlet is fluidly connected with the gas inlet of the multi stage washing column.
  • a heat cycle between the washing column and the heat pump is realized.
  • the heat cycle is realized between the liquid outlet of the multi stage washing column, the first heat pump liquid inlet, the first heat pump liquid outlet, and the hot liquid inlet of the multi stage washing column.
  • Thermal energy extracted from the water exiting the multi stage washing column is transferred to the heat pump and thermal energy extracted from the heat pump is transferred to the medium entering the heat pump via the second heat pump inlet, so that the medium exiting the heat pump via the second heat pump outlet can be used for drying the wetted material.
  • the wetted material preferably is wetted paper.
  • the drying device can comprise a drying chamber and/or can be named a drying chamber and/or can be named a Yankee. Moreover, the drying device can comprise a plurality of drying chambers and/or multiple drying cylinders.
  • the hot gas introduced into the drying device via the drying device gas inlet usually is hot air and/or a mixture of hot air and moisture.
  • the first heat pump liquid inlet can also be named a first heat pump water inlet.
  • the first heat pump liquid outlet can also be named a first heat pump water outlet.
  • the second heat pump liquid inlet can also be named a second heat pump water inlet.
  • the second heat pump liquid outlet can also be named a second heat pump water outlet or second heat pump steam outlet.
  • the hot fluid source can be a boiler for feeding hot water and/or hot steam and/or hot air.
  • the water/steam/air can preferably exhibit a temperature of more than 105°C.
  • the gas/steam exiting the heat pump via the second heat pump outlet preferably exhibits a pressure of three to four bar.
  • the device for drying wetted material further comprises a compressor arranged between the second heat pump outlet and the drying device gas inlet, wherein a compressor inlet is fluidly connected with the second heat pump outlet and a compressor outlet is fluidly connected with the drying device gas inlet.
  • the pressure of the gas/air/steam exiting the heat pump via the second heat pump outlet can be increased from approximately 3 to 4 bar up to approximately 8 to 9 bar which is more suitable for drying device which can be realized as heating cylinders.
  • the compressor is designed as a steam compressor.
  • the device comprises the above described 3-stage washing column exhibiting the intermediate temperature liquid inlet.
  • the device further comprises a heat exchanger, wherein a first heat exchanger liquid inlet is fluidly connected with the first heat pump liquid outlet and the hot liquid inlet of the multi stage washing column.
  • a first heat exchanger liquid outlet is fluidly connected with the intermediate temperature liquid inlet of the multi stage washing column, and a second heat exchanger liquid inlet and a second heat exchanger liquid outlet are fluidly connected with a heat energy consumer, so that thermal energy from the liquid introduced into the heat exchanger via the first heat exchanger liquid inlet is transferable to the heat energy consumer.
  • the heat energy consumer can be for example a process water tank and/or a space heating.
  • the heat exchanger can also be named a heat pump and a second heat pump, respectively.
  • a heat cycle between the washing column and the heat exchanger is realized.
  • the heat cycle is realized between the liquid outlet of the multi stage washing column, the first heat pump liquid inlet, the first heat pump liquid outlet, the first heat exchanger liquid inlet, the first heat exchanger outlet and the intermediate temperature liquid inlet of the multi stage washing column.
  • Thermal energy extracted from the water exiting the heat pump via the first heat pump liquid outlet is transferred to the heat exchanger and thermal energy extracted from the heat exchanger is transferred to a medium (for example water) circulating between the heat energy consumer (for example a process water tank and/or a space heating) and the heat exchanger via the second heat exchanger inlet and the second heat exchanger outlet.
  • a medium for example water
  • a valve / flow adjuster can be arranged directly upstream of the first heat exchanger liquid inlet and/or upstream of the intermediate temperature liquid inlet of the multi stage washing column, so that a distribution of the amount of fluid flowing into the heat exchanger and flowing into the multi stage washing column via the intermediate temperature liquid inlet is adjustable.
  • the device for drying wetted material is designed that way that the cold liquid inlet of the multi stage washing column is fluidly connected with a fresh water source.
  • the gas/air ascended inside the multi stage washing column can be further cooled down and even more thermal energy of the gas/air can be extracted by condensation of the humidity due to the further cooling by the fresh liquid / fresh water introduced into the multi stage washing column via the cold liquid inlet.
  • the amount of fresh liquid / fresh water introduced into the multi stage washing column is smaller than the amount of liquid/water introduced into the multi stage washing column via the hot liquid inlet and the intermediate temperature liquid inlet, respectively.
  • FIG 1 shows a schematic diagram of an example of a device 100 for drying wetted material WM.
  • Wetted material WM in the sense of the present invention can be wetted paper, wetted paint, wetted malt, or wetted food, so that there is no restriction regarding the nature of the wetted material WM.
  • the present invention will be described in the following with regard to wetted paper as wetted material WM to describe the functionality of the device 100 for drying wetted material WM. Nevertheless, the device 100 for drying wetted material WM according to the present invention can also be used for drying wetted paint, wetted malt and wetted malt.
  • the device 100 for drying wetted material WM comprises at least one drying device 10 for accommodating the wetted paper WM, a multi stage washing column 20, and a heat pump 30.
  • a liquid outlet 26 of the multi stage washing column 20 is fluidly connected with a first heat pump liquid inlet 31 and a first liquid outlet 32 of the heat pump 30 is fluidly connected with a hot liquid inlet 23 of the multi stage washing column 20.
  • a second heat pump inlet 33 is fluidly connected with a hot fluid source which e.g. can be a source for steam generation and/or air providing a fluid e.g. exhibiting a temperature in the range of 105°C.
  • a second heat pump outlet 34 is fluidly connected with a drying device gas inlet 11 and a drying device outlet 12 is fluidly connected with a gas inlet 21 of the multi stage washing column 20.
  • the heat cycle is realized by a circulating liquid which e.g. can be water.
  • the water circulates between the liquid outlet 26 of the multi stage washing column 20, the first heat pump liquid inlet 31, the first heat pump liquid outlet 32, and the hot liquid inlet 23 of the multi stage washing column 20.
  • Thermal energy extracted from the water exiting the multi stage washing column 20 is transferred to the heat pump 30 and thermal energy extracted from the heat pump 30 is transferred to the medium (water/steam/air) entering the heat pump 30 via the second heat pump inlet 33, so that the medium exiting the heat pump 30 via the second heat pump outlet 34 can be used for drying the wetted paper.
  • the medium exiting the heat pump 30 via the second heat pump outlet 34 preferably exhibits a temperature in the range of 140°C to 150°C.
  • the pressure of the medium exiting the heat pump 30 via the second heat pump outlet 34 is in the range of 3 bar to 4 bar.
  • the second heat pump outlet 34 is fluidly connected with a low pressure fluid pipe 70.
  • the low pressure fluid pipe 70 can be fluidly connected with different thermal energy consumers of hot air / hot steam exhibiting a pressure of 3 - 4 bar, wherein these thermal energy consumers are not shown in figure 1 .
  • the low pressure fluid pipe 70 is fluidly connected with an intermediate pressure fluid pipe 80 via a compressor 50, which according to the shown example is realized as a steam compressor 50. More precisely the low pressure fluid pipe 70 is fluidly connected with an inlet 51 of the compressor 50, and an outlet 52 of the compressor 50 is fluidly connected with the intermediate pressure fluid pipe 80.
  • the compressor 50 compresses the fluid (air and/or steam) fed from the low pressure fluid pipe 70 in a pressure range between 8 bar and 10 bar.
  • the intermediate pressure fluid pipe 80 is fluidly connected with the inlet 11 of the drying device 10, so that the wetted paper WM inside the drying device 10 is dried by the pressurized medium, which also can be named gas and/or air and/or steam.
  • the mixture of air and steam exiting the drying device 10 via the outlet 12 of the drying device 10 enters the multi stage washing column 20 via the gas inlet 21.
  • the mixture of air and steam exhibits a temperature in the range of 150°C and a dew point in the range of 85°C.
  • the temperature of the water injected into the multi stage washing column 20 via the hot liquid inlet 23 exhibits a temperature in the range of 70°C.
  • the water injected via the hot liquid inlet 23 exhibits a lower temperature than the mixture of air and steam injected via the gas inlet 21 into the multi stage washing column 20, a very high percentage of the humidity of the air condensates when the air is cooled down by the water introduced into the multi stage washing column 20 via the hot liquid inlet 21.
  • the liquid introduced into the multi stage washing column 20 via the hot liquid inlet 21 is heated by the condensation of the humidity of the air and by heat transfer from the air to the water. For that reason the temperature of the water collected at a bottom of the multi stage washing column 20 is considerably high (in the range of 80°C) and therefore the heat energy of the water can be very effectively used by the heat pump 30.
  • the air ascending inside the multi stage washing column 20 exhibits a reduced temperature, a reduced humidity and therefore a reduced dew point in the range of 65°C.
  • Water exhibiting a temperature below the reduced dew point of the air ascended in the multi stage washing column 20 is introduced into the multi stage washing column 20 via the cold liquid inlet 25.
  • the cold liquid inlet 25 is positioned above the hot liquid inlet 23.
  • a reduced amount of water is introduced into the multi stage washing column 20 via the cold liquid inlet 25. This reduced amount of water is sufficient to condensate out a further percentage of humidity out of the air. Therefore, the water introduced into the multi stage washing column 20 via the cold liquid inlet 25 only slightly cools down the water collected at the bottom of the multi stage washing column 20.
  • the air exiting the multi stage washing column 20 via a gas outlet 22 exhibits a temperature in the range of 20°C to 40°C, preferably 30°C.
  • FIG. 2 shows a schematic diagram of a device 100 for drying wetted material WM according to an embodiment of the present invention.
  • the device 100 according to this embodiment exhibits all components and features of the device 100 according to the example of Figure 1 .
  • the device 100 according to the embodiment of the present invention further comprises a multi stage washing column 20 wish is realized as a 3-stage washing column 20.
  • the washing column 20 further comprises an intermediate temperature liquid inlet 24, wherein the intermediate temperature liquid inlet (24) is positioned between the hot liquid inlet 23 and the cold liquid inlet 25.
  • the multi stage washing column 20 exhibits the advantage that thermal energy of air introduced into the multi stage washing column 20 via the gas inlet 21 can be even more effectively extracted, wherein the water collected at the bottom of the multi stage washing column exhibits a higher temperature, and wherein the overall liquid consumption required for cooling down the air and for drying the air is reduced. Since the water collected at the bottom of the multi stage washing column 20 exhibits a higher temperature, the thermal energy of the water can be more effectively transferred to a heat consumer 60.
  • the device 100 furthermore comprises a heat exchanger 40, wherein a first heat exchanger inlet 41 is fluidly connected with the first heat pump liquid outlet 32 and the hot liquid inlet 23 of the multi stage washing column 20.
  • a first heat exchanger liquid outlet 42 is fluidly connected with the intermediate temperature liquid inlet 24 of the multi stage washing column 20, and a second heat exchanger liquid inlet 43 and a second heat exchanger liquid outlet 44 are fluidly connected with a heat energy consumer 60, so that thermal energy from the water introduced into the heat exchanger 40 via the first heat exchanger liquid inlet 41 is transferable to the heat energy consumer 60.
  • the heat cycle is realized by circulating water circulating between the liquid outlet 26 of the multi stage washing column 20, the first heat pump liquid inlet 31, the first heat pump liquid outlet 32, the first heat exchanger liquid inlet 41, the first heat exchanger outlet 42 and the intermediate temperature liquid inlet 24 of the multi stage washing column 20.
  • Thermal energy extracted from the water exiting the heat pump 30 via the first heat pump liquid outlet 32 is transferred to the heat exchanger 40 and thermal energy extracted from the heat exchanger 40 is transferred to a medium (for example water) circulating between the heat energy consumer 60 (for example a process water tank and/or a space heating) and the heat exchanger 40 via the second heat exchanger inlet 43 and the second heat exchanger outlet 44.
  • a medium for example water
  • the temperature of the water entering the heat exchanger via the first heat exchanger inlet 41 can preferably be 70°C, and the temperature of the water exiting the heat exchanger 40 via the first heat exchanger outlet 42 is preferably 55°C.
  • the dew point of the ascended air inside the multi stage washing column 20 in the area of the second stage, i.e. in the area of the intermediate temperature liquid inlet 24 is in the range of 60°C so that humidity is condensed out of this air by cooling it down with water injected via the intermediate temperature liquid inlet 24.
  • the temperature of the water injected into the multi stage washing column 20 via the cold liquid inlet 25 can preferably be 10°C.
  • the dew point of the gas inside the washing column 20 in the area of the third stage, i.e. in the area of the cold liquid inlet 25 is approximately 40°C so that humidity is condensed out of this air by cooling it down with water injected via the cold liquid inlet 25.

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  • Drying Of Solid Materials (AREA)

Claims (6)

  1. Vorrichtung (100) zum Trocknen von benetztem Material (wetted material - WM), Folgendes umfassend:
    a) wenigstens eine Trocknungsvorrichtung (10) zum Aufnehmen des benetzten Materials (WM);
    b) einen mehrstufigen Waschturm (20) mit
    - einem Gaseinlass (21) zum Einleiten eines Gases in den mehrstufigen Waschturm (20),
    - einem Gasauslass (22) zum Austretenlassen des Gases aus dem mehrstufigen Waschturm (20),
    - einem ersten Waschturmflüssigkeitseinlass (23) zum Einleiten von Flüssigkeit in den mehrstufigen Waschturm (20),
    - einem dritten Waschturmflüssigkeitseinlass (25) zum Einleiten von Flüssigkeit in den mehrstufigen Waschturm (20) und
    - einem Flüssigkeitsauslass (26) zum Austretenlassen der Flüssigkeit aus dem mehrstufigen Waschturm (20),
    wobei in einer Einbauposition des mehrstufigen Waschturms (20) der dritte Waschturmflüssigkeitseinlass (25) über dem ersten Waschturmflüssigkeitseinlass (23) positioniert ist,
    - einem zweiten Waschturmflüssigkeitseinlass (24), wobei der zweite Waschturmflüssigkeitseinlass (24) zwischen dem ersten Waschturmflüssigkeitseinlass (23) und dem dritten Waschturmflüssigkeitseinlass (25) positioniert ist;
    c) eine Wärmepumpe (30), wobei
    - der Flüssigkeitsauslass (26) des mehrstufigen Waschturms (20) in Fluidverbindung mit einem ersten Wärmepumpenflüssigkeitseinlass (31) steht und ein erster Flüssigkeitsauslass (32) der Wärmepumpe (30) in Fluidverbindung mit dem ersten Waschturmflüssigkeitseinlass (23) des mehrstufigen Waschturms (20) steht;
    - ein zweiter Wärmepumpeneinlass (33) in Fluidverbindung mit einer heißen Fluidquelle steht; und
    - ein zweiter Wärmepumpenauslass (34) in Fluidverbindung mit einem Trocknungsvorrichtungsgaseinlass (11) steht und ein Trocknungsvorrichtungsauslass (12) in Fluidverbindung mit dem Gaseinlass (21) des mehrstufigen Waschturms (20) steht
    und
    d) einen Wärmetauscher (40), wobei
    - ein erster Wärmetauscherflüssigkeitseinlass (41) in Fluidverbindung mit dem ersten Wärmepumpenflüssigkeitsauslass (32) und dem ersten Waschturmflüssigkeitseinlass (23) des mehrstufigen Waschturms (20) steht;
    - ein erster Wärmetauscherflüssigkeitsauslass (42) in Fluidverbindung mit dem zweiten Waschturmflüssigkeitseinlass (24) des mehrstufigen Waschturms (20) steht; und
    - ein zweiter Wärmetauscherflüssigkeitseinlass (43) und ein zweiter Wärmetauscherflüssigkeitsauslass (44) in Fluidverbindung mit einem Wärmeenergieverbraucher (60) bringbar sind, so dass eine thermische Energie aus der Flüssigkeit, die über den ersten Wärmetauscherflüssigkeitseinlass (41) in den Wärmetauscher (40) eingeleitet wird, auf den Wärmeenergieverbraucher (60) übertragbar ist.
  2. Vorrichtung (100) nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung (100) ferner einen Verdichter (50) umfasst, der zwischen dem zweiten Wärmepumpenauslass (34) und dem Trocknungsvorrichtungsgaseinlass (11) angeordnet ist, wobei ein Verdichtereinlass (51) in Fluidverbindung mit dem zweiten Wärmepumpenauslass (34) steht und ein Verdichterauslass (52) in Fluidverbindung mit dem Trocknungsvorrichtungsgaseinlass (11) steht.
  3. Vorrichtung (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der dritte Waschturmflüssigkeitseinlass (25) des mehrstufigen Waschturms (20) in Fluidverbindung mit einer Frischwasserquelle steht.
  4. Vorrichtung (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der Einbauposition des mehrstufigen Waschturms (20) der Gasauslass (22) über dem Gaseinlass (21) positioniert ist.
  5. Vorrichtung (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der Einbauposition des mehrstufigen Waschturms (20) jeder Flüssigkeitseinlass (23, 24, 25) an einer unterschiedlichen vertikalen Position des mehrstufigen Waschturms (20) angeordnet ist.
  6. Verwendung eines mehrstufigen Waschturms (20) mit
    - einem Gaseinlass (21) zum Einleiten eines Gases in den mehrstufigen Waschturm (20),
    - einem Gasauslass (22) zum Austretenlassen des Gases aus dem mehrstufigen Waschturm (20),
    - einem ersten Waschturmflüssigkeitseinlass (23) zum Einleiten von Flüssigkeit in den mehrstufigen Waschturm (20),
    - einem dritten Waschturmflüssigkeitseinlass (25) zum Einleiten von Flüssigkeit in den mehrstufigen Waschturm (20) und
    - einem Flüssigkeitsauslass (26) zum Austretenlassen der Flüssigkeit aus dem mehrstufigen Waschturm (20),
    - einem zweiten Waschturmflüssigkeitseinlass (24),
    wobei in einer Einbauposition des mehrstufigen Waschturms (20) der dritte Waschturmflüssigkeitseinlass (25) über dem ersten Waschturmflüssigkeitseinlass (23) positioniert ist, wobei der zweite Waschturmflüssigkeitseinlass (24) zwischen dem ersten Waschturmflüssigkeitseinlass (23) und dem dritten Flüssigkeitseinlass (25) positioniert ist, wobei eine Flüssigkeit, die eine erste Temperatur aufweist, in den ersten Waschturmflüssigkeitseinlass (23) eingeleitet wird, wobei eine Flüssigkeit, die eine zweite Temperatur aufweist, in den zweiten Waschturmflüssigkeitseinlass (24) eingeleitet wird, wobei eine Flüssigkeit, die eine dritte Temperatur aufweist, in den dritten Waschturmflüssigkeitseinlass (25) eingeleitet wird, und wobei die erste Temperatur höher als die zweite Temperatur ist, und wobei die zweite Temperatur höher als die dritte Temperatur ist.
EP16197891.1A 2016-11-09 2016-11-09 Mehrstufige waschsäule und vorrichtung zum trocknen von feuchtem material mit mehrstufiger waschsäule Active EP3321419B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK16197891.1T DK3321419T3 (da) 2016-11-09 2016-11-09 Flerfaset vaskesøjle og anordning til tørring af befugtet materiale, der omfatter en flerfaset vaskesøjle
PL16197891T PL3321419T3 (pl) 2016-11-09 2016-11-09 Wielostopniowa kolumna myjąca oraz urządzenie do suszenia zmoczonego materiału zawierające wielostopniową kolumnę myjącą
EP16197891.1A EP3321419B1 (de) 2016-11-09 2016-11-09 Mehrstufige waschsäule und vorrichtung zum trocknen von feuchtem material mit mehrstufiger waschsäule

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025016660A1 (de) * 2023-07-18 2025-01-23 Siemens Energy Global GmbH & Co. KG Verfahren zur behandlung von abluft einer papier-, karton- und/oder tissue-herstellungsmaschine sowie zur durchführung eines solchen verfahrens eingerichtete anlage

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FI46644B (de) * 1967-11-10 1973-01-31 Valmet Oy
JPH0938441A (ja) * 1995-07-26 1997-02-10 Matsushita Electric Works Ltd 多段塔スクラバー
FI118826B (fi) * 2002-07-05 2008-03-31 Metso Paper Inc Lämmöntalteenottotorni

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025016660A1 (de) * 2023-07-18 2025-01-23 Siemens Energy Global GmbH & Co. KG Verfahren zur behandlung von abluft einer papier-, karton- und/oder tissue-herstellungsmaschine sowie zur durchführung eines solchen verfahrens eingerichtete anlage

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PL3321419T3 (pl) 2021-07-12
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