EP1987191A2 - Procédé de calandrage de linge et calandre à cuvette - Google Patents

Procédé de calandrage de linge et calandre à cuvette

Info

Publication number
EP1987191A2
EP1987191A2 EP07722851A EP07722851A EP1987191A2 EP 1987191 A2 EP1987191 A2 EP 1987191A2 EP 07722851 A EP07722851 A EP 07722851A EP 07722851 A EP07722851 A EP 07722851A EP 1987191 A2 EP1987191 A2 EP 1987191A2
Authority
EP
European Patent Office
Prior art keywords
trough
mangle
temperature
heat transfer
transfer medium
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
Application number
EP07722851A
Other languages
German (de)
English (en)
Other versions
EP1987191B1 (fr
Inventor
Wilhelm Bringewatt
Engelbert Heinz
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.)
Herbert Kannegiesser GmbH and Co
Original Assignee
Herbert Kannegiesser GmbH and Co
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 Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP1987191A2 publication Critical patent/EP1987191A2/fr
Application granted granted Critical
Publication of EP1987191B1 publication Critical patent/EP1987191B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/08—Beds; Heating arrangements therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F65/00—Ironing machines with rollers rotating against curved surfaces
    • D06F65/10—Ironing machines with rollers rotating against curved surfaces with two or more rollers co-operating with two or more curved surfaces

Definitions

  • the invention relates to a method for the lack of items of laundry according to the preamble of claims 1 and 10 and a tray deficiency according to the preamble of claim 12 or 17th
  • Trough mangles for commercial laundries have heatable mangle troughs.
  • the efficiency of the trough mangles is significantly influenced by the amount of energy available for heating the mangle troughs.
  • Defective troughs for trough mangles of the type discussed here are usually heated by steam or a liquid heat transfer medium.
  • steam the energy released for condensing is used to heat up the deficiency pits.
  • the condensation temperature of steam is at the usual maximum pressure of 16 bar only about 200 0 C. Thus, the per unit time possible energy supply to the lack of wells is limited.
  • liquid heat transfer media in particular oil
  • Such high temperatures can be used only with still wet laundry.
  • damage namely a scorching
  • lower temperatures In the course of the shortage of lack of drainage decreasing moisture content of the laundry must be used to avoid damage, namely a scorching, with lower temperatures. Therefore, in practice previously worked with lower temperatures than possible to avoid burning (singeing) of the laundry items. But this suffers the performance of well-known trough mangles.
  • the invention is based on the object to provide a method for smoothing laundry items and a tray deficiency, with which it is possible to achieve a maximum deficiency performance without the risk of damaging the items to be smoothed.
  • a method for achieving this object comprises the measures of claim 1. Accordingly, it is envisaged to deliberately heat each lack well, so that the heat tragungsmedium at the end of at least one mangle trough about a predetermined temperature shows. It can then be specifically heated the respective lack well.
  • the temperature at the beginning of the subsequent lacking well is not above the starting temperature of the preceding lacking well, whereby burns of the items of laundry are avoided.
  • the desired value of the temperature preferably of the heat transfer medium at the end of the or each lack well can be set to a maximum possible setpoint, because it is known what residual moisture the laundry will have at the end of the respective mangle trough.
  • the temperature at the beginning of the respective lack well in particular the inlet temperature of the heat transfer medium into the respective lack well, depending on the temperature at the end of the previous lack well, in particular the outlet temperature of the heat transfer medium from the respective previous mangle trough , is determined.
  • the temperatures are controlled or regulated so that they are in a specific, predetermined ratio to each other.
  • the ratio between the outlet temperature of a previous mangle trough inlet temperatures of the subsequent mangle trough is determined so that the fed into the respective mangle trough heat transfer medium has such a high inlet temperature at which a burning of the laundry items at the beginning of the subsequent mangle trough is not yet expected.
  • the temperature at the beginning of the second and any subsequent lack well is about equal to the temperature, in particular of the heat transfer medium at the end of the previous mangle trough.
  • the laundry is on Beginning of a mangle trough exposed to a temperature which is lower than the temperature at the end of the previous mangle trough, preferably approximately equal to the temperature at the end of the previous mangle trough, so that a continuous temperature profile from mangle trough to mangle trough is ensured.
  • this avoids the risk that at the beginning of a mangle trough the laundry items are exposed to a higher temperature than at the end of the previous lack trough, which could result in the risk of damage to the laundry items.
  • a further preferred embodiment of the method provides to measure the outlet temperature of the heat transfer medium to at least some mangle troughs.
  • the inlet temperature of the heat transfer medium is influenced in the subsequent mangle trough, in particular controlled or regulated. This influence is such that the outlet temperature has a certain ratio to the inlet temperature of the heat transfer medium, wherein preferably the temperatures are controlled or regulated so that they are about the same.
  • the measurement of the exit temperature of the heat transfer medium can be used primarily to influence the energy supply to the respective mangle trough.
  • the input temperature of the heat transfer medium in the second and any subsequent lack of wells is brought to the setpoint of the output temperature of the heat transfer medium from the respective previous mangle trough or maintained at the desired value of the output temperature, by preferably a corresponding control. Consequently, the initial temperature of the previous mangle trough is the reference variable for the inlet temperature for the subsequent mangle trough.
  • the heat transfer medium of the following Lack well can thus be selectively heated up to the maximum outlet temperature of the laundry from the previous lack well.
  • the subsequent lack well is thus heated as far as possible on its inlet side. This ensures a maximum possible shortage.
  • the method is provided to heat the heat transfer medium for each lack well, if necessary, and to lead in a cycle.
  • the heating circuit makes it possible to supply the respective lacking well the energy required to reach the predetermined outlet temperature of the heat transfer medium.
  • the heat transfer medium is circulated as needed.
  • the heat transfer medium leaving the mangle trough returns to the beginning of the same mangle trough without reheating, or the heated heat transfer medium bypasses the mangle trough and is also circulated. It can be adjusted by the targeted supply of heated heat transfer medium, the output temperature of each lack well specifically to the desired setpoint, in particular by an appropriate regulation.
  • circulated and cooled heat transfer medium is mixed and introduced such a mixture with a temperature setting in the respective mangle trough.
  • a relatively accurate control of the desired outlet temperature of the heat transfer medium from the mangle trough is possible, with small deviations.
  • Another method for the solution of the above-mentioned object comprises the painting frames of claim 10.
  • the exhaust air of the or each heater and / or the exhaust air of the trough deficiency is used to preheat the lack supply air
  • a part of the residual energy contained in the exhaust air and / or exhaust gas can be used to preheat the lack supply air.
  • the mangle supply therefore needs to be heated in the trough mangle only relatively little, so that the mangle trough little energy is removed to heat the Mangelzu poverty and therefore more energy for actual drying and smoothing of the laundry is available.
  • only the exhaust gas of the or each heater is used to preheat the lack supply air. Since the exhaust gas of the heater has a higher temperature than the air of the trough deficiency, can be done with the exhaust of the respective heater particularly effective preheating the lack of supply air without the circulation of a large volume thereof.
  • the heating circuit has a heating device, a supply line and a return line for the heat transfer medium flowing through the respective mangle trough. Furthermore, it is provided to connect the feed line to the return line by a variable in flow area or completely shut off bypass.
  • the secondary line makes it possible to circulate the heat transfer medium. Since the secondary line is variable in cross-section, the circulation of the heat transfer medium may take place as required. Preferably, the secondary line is only partially shut off, whereby heat transfer media of different temperatures.
  • At least one valve is arranged at the point of diversion of the secondary line of the return line, preferably a mixing valve.
  • This mixing valve is used to change the volume flow through the secondary line by circulating more or less heat transfer medium through the heater as needed on past the respective heating circuit Lackmulde over. In this way, a supply of the same required for reliable operation of the heater is ensured with a sufficient amount of heat transfer medium.
  • the temperature required for maintaining the temperature at the inlet and at the outlet thereof can always be adjusted, in particular regulated, at the lacking well.
  • Another trough deficiency to solve the aforementioned problem has the features of claim 17. This may also be a development of the previously described drainage shortage. Accordingly, a heat exchanger for Preheating the supply air to the tray deficiency provided by the exhaust gas of the heater and / or in the exhaust air of the defect. In the trough shortage, therefore, no cold supply air must be preheated. Rather, according to the invention, the residual energy in the exhaust air of the defect and / or the exhaust gas of the heater used, namely recovered, are to preheat the supply air to the drainage shortage.
  • the heat exchanger for preheating the supply air to the mangle trough as a hollow portion, preferably a pipe section is formed, which surrounds the exhaust and / or exhaust pipe of the trough deficiency.
  • Cold supply air is heated as it flows through the pipe section of the heated exhaust air from the exhaust or exhaust pipe or exhaust pipe. This air can be supplied as a heated supply air, so-called lack of supply, the trough deficiency.
  • At least one flow generator be assigned to the pipe section surrounding the exhaust gas and / or exhaust pipe.
  • this is a fan, a fan or the like.
  • 1 is a schematic section through a two mangle troughs and two mangle rolls having trough deficiency
  • FIG. 2 shows a block diagram of the supply of the two lacking wells of the tray deficiency according to FIG. 1 with a heat transfer medium
  • Fig. 3 is a graphical representation of the temperature profile along the two mangle troughs of the trough deficiency according to FIGS. 1 and 2, and
  • Fig. 4 shows an embodiment of the exhaust and exhaust air duct and the supply air supply a trough deficiency.
  • the invention will be explained by way of example with reference to the tray deficiency shown in the figures with two successively arranged lacking wells 10, 11, each with a rotationally drivable mangle roller 13.
  • the invention is not limited thereto. Rather, the invention also relates to trough mangles with more than two trough mangles 10, 11.
  • the mangle troughs 10 and 11 are connected by an arcuate bridge 14.
  • both mangle troughs 10 and 1 1 are the same size and also formed equally. This also applies to the mangle rolls 13.
  • the two lacking wells 10, 11 are mounted with their opposite longitudinal edges, namely an inlet side 14 and 15 and an outlet side 16, 17, on a common machine frame 18.
  • the bridge 13 is connected on the one hand to the outlet side 16 of the first mangle trough 10 and on the other hand to the inlet side 15 of the second mangle trough 11.
  • each mangle trough 10 and 11 associated mangle roller 12 is with the same direction of rotation, in the illustrated embodiment counterclockwise, rotationally driven.
  • laundry items not shown in the figures, which are to be smoothed are transported along a mangle gap 19 shown in an exaggerated manner in FIG. 1 through the shortage-shaped defect tray 10 and 11, which is semicircular in cross-section.
  • the semicircular path that travels through the garment through each mangle trough 10 and 11, is referred to in the jargon as Plurgitweg.
  • the Plurgitwege both lack wells 10, 11 and the way across the bridge 14 together form the shortage route.
  • Over the bridge 13 over, ie from the first mangle trough 10 to the second mangle trough 11 the laundry item is transported by mangle bands, transport rollers or the like, not shown.
  • Each lacking well 10 and 11 is heatable. In the tray deficiency shown here, heating takes place with a liquid heat transfer medium, preferably an oil. There are usually special highly heatable and durable oils, so-called thermal oils, as a heat transfer medium use.
  • the lack wells 10 and 11 can also be heated with other liquids.
  • the lack pits 10 and 11 are heated areally.
  • the lack pits 10 and 1 1 have several in the Figures not shown flow channels. These flow channels are z. B. in a double-walled lacking well 10, 11 formed.
  • Such a lack well is known from DE 100 03 190 A1.
  • the lacking wells 10 and 11 can also be designed differently, for example, single-walled with externally welded flow channels.
  • the bridge 13 is usually heated as the mangle troughs 10 and 11. This can be done in any way, for example, with the used for heating the mangle troughs 10 and 11 heat transfer medium.
  • the heated by a heater heat transfer medium is usually supplied to the inlet side 14, 15 of the respective mangle trough 10, 11.
  • the removal of serving for heating the respective lacking well 10 and 11 heat transfer medium takes place at the outlet side 16, 17 of the mangle trough 10 and 11 respectively.
  • FIG. 10 and 11 The supply of the mangle troughs 10 and 11 with the heat transfer medium is shown schematically in FIG. Each lack well 10 and 11 is a heater
  • the heating device 20 of the lacking well 10 has two preferably identically formed burners 22. In contrast, the heating device has
  • the heating device 21 of the lacking well 11 may have more than one burner 23.
  • the two burners 22 of the heater 20 are connected in parallel. But they can also be connected in series.
  • the two burners 22 of the heater 20 are connected to the mangle trough 10 through a heating circuit.
  • This heating circuit has a supply line 24 which connects the outputs of the burner 22 with the inlet side 14 of the mangle trough 10. From the burners 22 heated heat transfer medium is thus supplied via the inlet line 24 of the inlet side 14 of the mangle trough 10. From the outlet side 16 of the mangle tray 10, a return line 25 leads back to the burners 22. Thus, the heat transfer medium cooled during heating of the mangle tray 10 is returned from the outlet side 16 of the mangle tray 10 to the burners 22.
  • a pump 26 in the return line 25 provides for Transport of the heat transfer medium in the heating circuit.
  • the supply line 24 and the return line 25 of the heating circuit are connected by a secondary line 26.
  • the secondary line 26 connects the supply line 24 and the return line 25 between the lacking well 10 and the heater 20. There, where the secondary line 26 branches off from the return line 25 is located a preferably designed as a 3-way valve mixing valve 27. From the mixing valve 27, the amount of flow of the heat transfer medium from the supply line 24 to the return line 25 is variable. The secondary line 26 can also be completely shut off or completely opened by the mixing valve 27. The secondary line 26 forms a bypass for at least part of the flowing through the supply line 24, heated heat transfer medium to the return line 25. As a result, the heat transfer medium is circulated bypassing the lacking well 10. Accordingly, this heating circuit also has a supply line 28, a return line 29, a secondary line 30 and a mixing valve 31. The secondary line 30 and the mixing valve 31 are connected in the same way as in the mangle trough 10th
  • a heating circuit of the bridge 13 is connected in parallel with the heating circuit of the lacking well 11.
  • a supply line 32 branches off from the supply line 28, which opens into the front side 33 of the bridge 13 adjoining the outlet side 16 of the mangle trough 10.
  • From the inlet side 15 of the following lack well 1 1 associated rear 34 of the bridge 13 branches off a return line 35, which opens into the return line 29 of the heating circuit for the lacking well 11.
  • the discharge point of the return line 35 of the bridge 13 is seen in the flow direction in front of the mixing valve 31, ie between the mixing valve 31 and the lacking well 11.
  • the heating circuit of the lacking well 10 has a supply line 24 associated control member 36 and a return line 25 associated control member 37.
  • the control member 36 has a temperature measuring device, not shown, which constantly determines the temperature of the heat transfer medium in the return line 25, directly behind the burners 22.
  • the control member 37 has a temperature measuring device, the temperature of the lacking well 10 leaving heat transfer medium in the Return line 25 constantly determined.
  • Dashed lines shown control lines 38 the control member 36 of the supply line 24 is connected to the burners 22.
  • the control member 36 regulates the burner 22 such that the heat transfer medium leaving this via the supply line 24 is heated to a certain temperature.
  • There is a control of the temperature of the heat transfer medium within a deviating from the predetermined setpoint tolerance range. It is also conceivable to input into the control element 36 an upper limit temperature and a lower limit temperature, so that between these limit temperatures the control device 36 adjusts the temperatures of the heat transfer medium leaving the burner 22 by a corresponding control of the heating power of the burners 22.
  • the control device 37 measures the temperature of the outlet side 16 of the mangle trough 10, preferably the temperature of the heat transfer medium in the return line 25, on the inlet side 16 or at least in the vicinity thereof.
  • the control member 37 influences a control motor 39 for operating the mixing valve 27.
  • the control motor 37 influenced by the control motor 37, the mixing valve 27 depending on the temperature of the heat transfer medium leaving the mangle trough 10, are regulated.
  • the heating circuit of the lacking well 11 are also associated with two control members 40 and 41.
  • the control member 40 receives the measured in the supply line 28 temperature of the heated by the burner 23 heat transfer medium. Via a control line 42, the control member 40 controls the burner 23 so that it heats the heat transfer medium to the intended temperature or brings to a temperature which is within a predetermined temperature spectrum.
  • the return line 29 associated control member 41 receives at the entrance the constantly measured temperature at the outlet side 17 of the lacking well 11, in particular of the lacking well 11 abandoned heat transfer medium. The temperature of the heat transfer medium is measured in the return line 29, in the immediate vicinity of the outlet side 17 of the mangle trough 1 1.
  • the control member 41 is associated with the heating circuit of the Mangelmulde 1 1, a servomotor 43 which opens the mixing valve 30 more or less wide or even completely opens or closes, depending on the dependence of Temperature of the heat transfer medium at the outlet side 17 of the mangle trough 11.
  • control element 37 controlling the temperature at the outlet of the lacking well 10 and the control element 40 controlling the temperature of the heat transfer medium at the inlet of the lacking well 11 are connected by a control line 44.
  • the control line 44 Via the control line 44, the temperature of the heat transfer medium at the outlet side 16 of the mangle trough 10 is transmitted to the control member 40, so that the temperature of the heat transfer medium at the inlet side 15 of the mangle trough 11 can be regulated.
  • the temperature of the heat transfer medium at the inlet side 15 of the lacking well 11 in response to the temperature of the heat transfer medium at the outlet side 16 of the mangle trough 10 can be influenced, in particular regulated.
  • each mangle trough 10 and 11 is supplied with a heat transfer medium at a temperature such that both the mangle trough 10 and the
  • Lack well 11 at the outlet side 16 and 17 have a certain temperature. It may be a targeted, predetermined setpoint, which is maintained within certain limits or by a predetermined setpoint spectrum by the temperature at the outlet side 16, 17 of the respective
  • the temperature prevailing at the outlet side 16 or 17 of the mangle trough 10 and 11 is used for setting, in particular control, the temperature at the inlet side 15 of the subsequent lacking trough 11 Im shown embodiment of a trough deficiency with only two mangle troughs 10 and 1 1, the temperature at the inlet side 15 of the rear mangle trough 11 as a function of the temperature at the outlet side 16 of the first mangle trough 10 is selected.
  • the temperature at the Inlet side 15 of the mangle trough 11 can fall below the temperature at the outlet side 16 of the mangle trough 10 by a specific value.
  • the temperature at the inlet side 15 of the mangle trough 11 corresponds approximately to the temperature at the outlet side 16 of the mangle trough 10.
  • the method according to the invention is described below.
  • the temperature at the inlet side 14 of the mangle trough 10 is about 25O 0 C
  • the temperature at the outlet side 17 of the last rear mangle trough 11 is about 180 0 C.
  • the temperature at the outlet side 16 of the mangle trough 10 and the inlet side 15 of the mangle trough 11 is equally about 205 ° C.
  • the temperatures mentioned are to be understood as examples. The invention is, however, not limited thereto.
  • control member 36 of the supply line 24 of the heating circuit of the first mangle trough 10 the highest temperature of 250 ° C. shown in the embodiment shown on the inlet side 14 of the mangle trough 10 is entered.
  • the control member 36 receives continuously, preferably continuously, the temperature of the burner 22 leaving the heat transfer medium in the supply line 24.
  • About the control line 38 are controlled by the control member 36, the burner 22, in particular regulated, in such a way that of the burners 22, the heat transfer medium in Heating circuit of mangle trough 10 is heated only so much that a tolerance range of the target temperature on the inlet side 14 of the mangle trough 10 is maintained.
  • the temperature of the heat transfer medium is measured in the return line 25 behind the mangle trough 10 and the continuously obtained measured values are sent to the control element 37 handed over.
  • the actually measured temperature at the end of the mangle trough 10 is compared by the control member 37 with the predetermined temperature, which are in the illustrated embodiment 205 0 C.
  • the servo motor 39 is operated to adjust the mixing valve 27.
  • the mixing valve 27 is thereby adjusted in the closing or opening direction, that a more or less large part of the heated by the burners 22 heat transfer medium flows from the supply line 24 via the secondary line 26 directly into the return line 25, that is circulated to the lacking well 10 over , As a result, when the mixing valve 27 is further opened, the lacking well 10 is supplied with a smaller amount of heated heat transfer medium. As a result, the heat sink energy supplied to the lacking well 10 per unit of time decreases. Conversely, as the mixing valve 27 closes progressively, the proportion of the heat transfer medium flowing through the secondary line 26 is reduced, so that more heat transfer medium heated by the burner 22 flows through the shortage pit 10, thereby supplying it with a larger amount of energy per unit time.
  • the supply line 28 of the heating circuit for the second mangle trough 11 associated control member 40 operates in principle as well as the control member 36 in the supply line 24 of the heating circuit of the first mangle trough 10th
  • control member 37 is connected behind the first mangle trough 10 with the control member 40 before the second mangle trough 11 through the control line 44.
  • an adjustment, in particular a control, of the temperature at the outlet side 16 of the first mangle trough 10, in particular of the returning heat transfer medium, with the temperature at the inlet side 15 of the second trough 1 1, and preferably here the temperature of the heated heat transfer medium possible.
  • the reference value used in the control member 40 is setpoint temperature, ie in the embodiment shown again 205 0 C.
  • the control member 37 is controlled so that it adjusts the same or almost the same temperature at the outlet of the lacking well 10.
  • the method according to the invention can also be realized without the control line 44 for connecting the control elements 37 and 40. There are then entered into both control organs 37 and 40 set temperatures, which are preferably equal or about the same, but the target temperature in the control member 40 of the heating circuit of the second mangle trough 1 1 can also be slightly lower.
  • the control member 41 which is associated with the outlet side 17 of the rear Mangelmulde 11, serves to keep the outlet temperature of the rear Mangelmulde 1 1 to a predetermined value, in the illustrated embodiment to 180 0 C. Accordingly, the control device 41 controls the temperature of the heat transfer
  • the servomotor 43 is operated such that it the mixing valve 31 at the junction of the secondary line 30 and the return line 29 opens or closes accordingly, whereby the rear lacking well 11 is supplied so much heat energy that the predetermined temperature (here: 180 ° C) adjusts to the outlet side 17 of the rear lacking well 11.
  • Fig. 4 shows the exhaust, exhaust air and supply air guide the trough deficiency.
  • the trough deficiency is surrounded by a housing 45 shown schematically in FIG. 4.
  • the housing 45 has a housing 45 which is adapted to the contour of the trough deficiency and permits a supply and discharge of laundry items.
  • the exhaust gas of all burners 22 and 23, that is, the heaters 20 and 21 (FIG. 2), is led through a common chimney-like exhaust pipe 46 through a roof 47, which is shown in a suggestion.
  • This preheating is done by a heat exchanger 51.
  • the heat exchanger 51 is formed in the embodiment shown by a pipe section 52, which is a part of the exhaust pipe 46 from the outside surrounds, in the embodiment shown between the housing 45 and the roof 47 and a short projecting beyond the roof 47 area.
  • the pipe section 52 is formed larger in diameter than the exhaust pipe 46, so that the pipe section 52 concentrically surrounds the smaller diameter exhaust pipe 46. As a result, the pipe section 52 forms around the exhaust pipe 46 around an annular space 43 with an annular cross-section.
  • the Saugrohrabites 55 opens into the suction side of the blower 54.
  • a Zuluftrohr 56 is connected, which is guided in the housing 45 of the tray deficiency.
  • a heat exchanger is associated with the exhaust pipe 50.
  • This heat exchanger can in principle be designed in the same way be as the exhaust pipe 46 associated heat exchanger, ie as a tube surrounding the exhaust pipe 50 pipe section. If the supply air is preheated to Muldenbian the exhaust pipe 50, the preheating of the supply air to the exhaust pipe 46 can be omitted. It is also conceivable to preheat the supply air both on the exhaust pipe 46 and the exhaust pipe 50.
  • the preheating of the supply air (lack of supply air) which takes place in the manner described above can take place at any trough deficiency, ie not only with a trough deficiency shown here with two mangle rolls 12 and two mangle troughs 10, 11 but also with a trough deficit with only one mangle roll 12 and 10 mangle trough or more than two mangle rolls and mangle troughs.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

La présente invention concerne des calandres à cuvette chauffées à l'huile qui permettent de travailler à des températures plus élevées qu'avec des calandres à cuvette chauffées à la vapeur. L'objectif de la présente invention est d'assurer que le linge ne soit pas endommagé (brûlé) en raison de la diminution de l'humidité résiduelle dans le linge au cours de son passage sur la voie de calandrage de la calandre à cuvette. Cette invention propose donc de réguler les températures aux côtés entrée (14, 15) et aux côtés sortie (16, 17) des cuvettes de calandrage (10, 11) de manière à obtenir un profil de températures qui diminue en continu sur la voie de calandrage. A cette fin, l'alimentation en énergie aux cuvettes de calandrage (10, 11) est régulée de manière que les températures aux côtés sortie (16, 17) des cuvettes de calandrage (10, 11) ne dépassent pas une certaine valeur prédéfinie. La température au côté sortie (16) de la première cuvette de calandrage (10) correspond de préférence à la température au côté entrée (15) de la seconde cuvette de calandrage (11).
EP07722851.8A 2006-02-23 2007-02-19 Procédé de calandrage de linge Not-in-force EP1987191B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610008993 DE102006008993A1 (de) 2006-02-23 2006-02-23 Verfahren zum Mangeln von Wäschestücken und Muldenmangel
PCT/EP2007/001415 WO2007096114A2 (fr) 2006-02-23 2007-02-19 Procédé de calandrage de linge et calandre à cuvette

Publications (2)

Publication Number Publication Date
EP1987191A2 true EP1987191A2 (fr) 2008-11-05
EP1987191B1 EP1987191B1 (fr) 2016-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722851.8A Not-in-force EP1987191B1 (fr) 2006-02-23 2007-02-19 Procédé de calandrage de linge

Country Status (3)

Country Link
EP (1) EP1987191B1 (fr)
DE (1) DE102006008993A1 (fr)
WO (1) WO2007096114A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013197A1 (de) * 2008-03-07 2009-09-10 Herbert Kannegiesser Gmbh Verfahren zum Mangeln von Wäschestücken und Muldenmangel
DE102008063441A1 (de) * 2008-12-31 2010-07-01 Herbert Kannegiesser Gmbh Muldenmangel
FR3098831B1 (fr) * 2019-07-19 2021-06-18 Werkhuizen Lapauw Nv Dispositif de repassage à cuvette
DE202024100354U1 (de) 2024-01-24 2024-02-15 Graftech Gmbh Medienaggregat für Wäschereien mit einer Dämmeinrichtung

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BE904939A (fr) * 1986-06-17 1986-10-16 Moreau Guy Machine destinee au sechage et au repassage du linge, du type a cylindres garnis de feutre.
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Title
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Also Published As

Publication number Publication date
EP1987191B1 (fr) 2016-10-26
DE102006008993A1 (de) 2007-08-30
WO2007096114A3 (fr) 2007-11-08
WO2007096114A2 (fr) 2007-08-30

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