EP0025968A1 - Installation pour le traitement thermique de fils et de filés synthétiques - Google Patents

Installation pour le traitement thermique de fils et de filés synthétiques Download PDF

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Publication number
EP0025968A1
EP0025968A1 EP80105542A EP80105542A EP0025968A1 EP 0025968 A1 EP0025968 A1 EP 0025968A1 EP 80105542 A EP80105542 A EP 80105542A EP 80105542 A EP80105542 A EP 80105542A EP 0025968 A1 EP0025968 A1 EP 0025968A1
Authority
EP
European Patent Office
Prior art keywords
thread
steam
sealing liquid
vessel
barrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP80105542A
Other languages
German (de)
English (en)
Inventor
Max Dipl.-Ing. Brossmer
Manfred Ing. Grad Boerner
Peter Ing. Grad Westebbe
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.)
Honeywell GmbH
Original Assignee
Honeywell GmbH
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
Priority claimed from DE19792938117 external-priority patent/DE2938117A1/de
Priority claimed from DE19803033409 external-priority patent/DE3033409A1/de
Application filed by Honeywell GmbH filed Critical Honeywell GmbH
Publication of EP0025968A1 publication Critical patent/EP0025968A1/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/14—Containers, e.g. vats
    • D06B23/16—Containers, e.g. vats with means for introducing or removing textile materials without modifying container pressure
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass

Definitions

  • the invention relates to a device for the heat treatment of synthetic threads and yarns according to the preamble of claim 1.
  • Devices of this type are used, for example, for heating threads and yarns during a stretch texturing process or other processes serving the thread treatment.
  • the saturated steam direct heaters of the generic type are distinguished by a significantly increased heat transfer value and thus improved efficiency, as a result of which the length of the heater required to heat the thread to a specific temperature can be reduced and the thread speed increased.
  • the optimal curling temperature in saturated steam is much lower than in hot air, so that the device can be operated at lower temperatures than conventional contact heaters.
  • a labyrinth seal is provided in each of the two sockets, the interior of which is connected to a compressed air source in the middle of the seal length, the regulated air pressure corresponding approximately to the vapor pressure in the vessel.
  • the object of the invention is to provide a device of the type mentioned with lower energy consumption.
  • the compressed air consumption required in the prior art and the noise associated with the compressed air discharge are to be eliminated.
  • the invention characterized in claim 1. It consists essentially in that, instead of compressed air, a barrier fluid prevents the outflow of superheated steam from the treatment vessel and the pressure of the barrier fluid is reduced to atmospheric pressure via several orifices, so that no hydraulic fluid from the outside out of the thread path at the inlet and The outlet surrounding the steam vessel emerges. Rather, the barrier liquid circulates in a closed, well-insulated circuit, so that hardly any heat losses occur and the thread before entering and after leaving the steam vessel is not subject to a sudden change in temperature.
  • the thread 1 enters from above through a thread inlet opening 2 into an elongated, upright steam vessel 3 and leaves it through a thread outlet opening 4.
  • the thread path is surrounded by a nozzle 5, in which several apertures 6 to 9 are inserted are.
  • the socket 5 has a thread entry hole 10.
  • On the outlet side there is provided in its lower part 11 a connecting piece 12 expanded into a collecting container, in which a plurality of diaphragms 13 to 16 are inserted.
  • the thread leaves the connecting piece 12 through a standpipe 17 and from there enters a collecting tube 18 with a larger diameter, where any liquid residues still on the thread are thrown off by balloon formation of the thread bundle.
  • a steam supply line 21 opens into the steam vessel 3 approximately halfway up and is connected via a condensate collector 22 and a control valve 23 to a steam generator 24 with a steam superheater connected downstream.
  • the condensate that accumulates in the lower part of the steam vessel 3 runs via a condensate return line 26 into a gravity separator 27.
  • the steam vessel 3 for example, there is a steam temperature of 130-150 ° C. at a pressure between 2.7 and 4.8 bar.
  • the steam generator 24 is controlled accordingly by a temperature sensor (not shown) in the steam vessel 3.
  • a barrier liquid chamber is provided both on the thread inlet side and on the thread outlet side, which is formed by the connecting piece 5 and 12, respectively.
  • a barrier liquid the pressure of which is approximately 0.2-0.5 bar higher than the vapor pressure in the steam vessel 3, is supplied on the one hand to the interior of the nozzle 5 between the thread inlet opening 2 and the first diaphragm 6.
  • the downstream orifices 7 to 9 the pressure of the barrier liquid is reduced to atmospheric pressure, so that no barrier liquid penetrates through the thread entry hole 10 to the outside. Rather, this flows out of the area between the last diaphragm 9 and the thread entry hole 10 via a sealing liquid return line 31 and arrives
  • barrier liquid collecting container 32 On the thread exit side, the barrier liquid is fed from the inlet pipe 30 to the space between the thread outlet opening 4 and the first diaphragm 13. Your pressure builds up again to atmospheric pressure via the downstream orifices 14 to 16.
  • the barrier liquid arrives from the container 11 through the return line 31 ′ to the collecting line 31 and from there to the collecting container 32.
  • a collecting space formed in the lower part of the collecting tube 18 is likewise connected to the blocking liquid return line 31 via a branch line 31 ′′.
  • the sealing liquid is pressed out of the collecting container 32 by a pump 33 via a valve 34 into a heat exchanger 35 which is located in the steam generator 24 and which heats the sealing liquid to the temperature of the steam supplied to the steam vessel 3 via the steam feed line 21. This prevents the sealing liquid from being gradually heated up by the thread emerging from the steam vessel 3. Rather, the sealing liquid has the temperature of the water vapor in the steam vessel 3 after a short time. Via a three-way valve 36, which is connected to the collecting container 32 via a shunt line 37, the sealing liquid is pressed into the feed line 30.
  • the position of the three-way valve 36 and thus the level of the pressure in the feed line 30 is regulated in dependence on the pressure in the steam vessel 3 such that the barrier liquid pressure at the confluence of the feed line 30 or 30 'in the nozzle 12 or 5 is about 0.2 to 0.5 bar higher lies as the pressure in the steam vessel 3.
  • a pressure sensor 38 measuring the differential pressure between the steam vessel 3 and the line 30 ' is used, which adjusts the three-way valve 36 via a control drive 39.
  • the pressure in the sealing liquid supply line 30 is somewhat higher than that in the steam vessel 3, a part, albeit a small part, of the sealing liquid will enter the steam vessel through the thread inlet opening 2 or the thread outlet opening 4. It collects together with the steam condensate at the bottom of the steam vessel 3 and passes through the condensate line 26 into the condensate separator 27.
  • the barrier liquid is heavier than water and is not soluble in water. This applies, for example, to synthetic oils, whose boiling point is often well above 200 ° C, i.e. higher than 150 ° C, so that no heat of vaporization is lost.
  • a gravity separation device 27 can be used to separate the water vapor condensate and barrier liquid.
  • the reservoir 32 for the sealing liquid is connected to the oil sump via a valve 42 controlled by a float 41.
  • Above the oil level is the steam condensate 43, ie water, which has run out of the steam vessel 3 and which is returned from the pump 44 to the steam generator 24 via a filter 45. This closes both the steam circuit and the sealing liquid circuit.
  • the pump 33 is controlled via a float switch.
  • the three-way valve 36 controlling the pressure in the sealing liquid feed line 30 could be replaced by a condensate flow meter 46 instead of a steam pressure sensor 38 Condensate return 26 can be controlled.
  • Both the steam circuit and the barrier liquid circuit are only available once for a large number of steam vessels of a texturing machine or other yarn processing machine.
  • the pipes of the steam circuit and the sealing liquid circuit are well insulated to keep the thermal losses as low as possible. This further improves the efficiency compared to contact heaters.
  • steam is first pressed into the steam vessel 3 via the line 21 when the sealing liquid circuit is blocked, in order to remove the air therein.
  • the thread has previously been inserted, for example with the aid of a needle, through the diaphragms, the steam space and the collecting tube or has been inserted by opening these two-part device parts.
  • the sealing liquid circuit is closed by opening the valve 34 and switching on the pump 33, thus ensuring the sealing of the steam vessel 3 to the outside.
  • a temperature controller not shown, the sensor of which measures the temperature in the steam vessel 3, controls the steam generator 24 and thus the temperature of the saturated steam supplied via line 21 for the steam vessel 3 to the desired value required for the treatment of the thread 1.
  • the amount of steam supplied is determined by valve 23. Characterized in that the heat exchanger 35 for the sealing liquid is heated by the same steam generator 24, which also serves the steam supply for the steam vessels 3, the device can be operated with the least possible amount of energy. The expenditure in terms of equipment is also low because only the steam vessels 3 with the sockets 5 and 12 and the collecting tube 18 are present in a number corresponding to the thread treatment stations, while all the other parts of the device are only once Machine are needed. For temperature and pressure control, one of the steam vessels 3 is preferably used as the decisive pilot vessel. All others are pressurized with the same pressure.
  • FIG. 2 An exemplary embodiment of a device with a distillation separator is shown in FIG. 2.
  • a preparation oil of the type commonly used in thread treatment is used as the barrier liquid.
  • an emulsifier is added to them, which makes them water-soluble.
  • the emulsified preparation oil combines with the water vapor condensate in the lower part of the steam vessel 3 and thus not, as in the embodiment according to FIG. 1, can be separated from the steam condensate by a gravity separator. Consequently, in the exemplary embodiment according to FIG. 2, a distillation separator is used to separate the condensate and sealing liquid. Otherwise, the device according to FIG. 2 does not differ from that previously described.
  • the distillation separator 127 is accommodated in the steam generator 124 and is provided with a, preferably electrical, additional heating device 128. The water vapor condensate is distilled off and passes through the pipe 129 into the container of the steam generator 124.
  • the remaining sealing liquid flows via the float-controlled valve 42 into the sealing liquid collecting container 32 and is pressed from there via the pump 33 into the sealing liquid circuit.
  • the barrier liquid must be sufficiently above the boiling point have boiling temperature of the water so that the steam in the distillation separator 127 evaporates from the steam condensate / barrier liquid mixture in line 26 and is fed back into the steam circuit, while the barrier liquid remains in the lower part 130 of the distillation separator 127 and drains into the barrier liquid collecting container 32.
  • the balloon formation in the collecting tube 18 favors the throwing off of the sealing liquid, so that only the amount required for the subsequent mechanical treatment remains on the thread.
  • Another embodiment uses a non-water-soluble component of the preparation oil as the barrier liquid, while the remaining components are fed to the thread after leaving the heating device with the aid of injection nozzles and a metering pump.
  • these components to be applied subsequently is the emulsifier, so that a water-insoluble barrier liquid is used and can be easily separated from the water condensate.
  • the thread 1 passes through the steam vessel 3 from top to bottom.
  • the invention can also be used advantageously if the thread running direction is opposite.
  • the use of water as a barrier liquid considerably simplifies the construction of the barrier liquid circuit and the operation of the device. In particular, it saves the use of a special separator for the separation of sealing liquid and thread treatment steam.
  • the thermal insulation between the treatment vessel and the barrier liquid located in the nozzle prevents evaporation of the water in the barrier liquid circuit, which would otherwise lead to heat loss and to a reduction in the barrier effect of the liquid barrier.
  • a tubular intermediate piece 131 is arranged, which thermally insulates the nozzle 5 from the steam vessel 3. It consists, for example, of press ceramic, porcelain or a plastic such as tetrafluoroethylene.
  • a corresponding thermally insulating intermediate piece 132 is provided on the thread exit side, to which the connecting piece 12 connects. A number of diaphragms 13 to 16 are used in these.
  • the condensate that accumulates in the lower part of the steam vessel 3 runs via a condensate return line 26 into a distillation separator 127.
  • This is accommodated in the steam generator 124 and is provided with a preferably electrical additional heating device 128.
  • the water vapor condensate is distilled off and passes through the pipe 129 into the container of the steam generator 124. Remaining residues of treatment liquid carried along with the thread or thread residues collect in the lower part 130 of the distillation separator 127 and are discharged from time to time through the float-controlled valve 42.
  • a barrier liquid chamber in the form of a socket 5 or 12 is provided on both the thread inlet side and the thread outlet side.
  • the water serving as a barrier liquid is at a pressure which is approximately 0.2 to 0.5 bar higher than the vapor pressure in the vessel 3.
  • the nozzle 5 is between the first orifice 6 and the second Aperture 6 'is fed and on the outlet side between the first aperture 13 and the second aperture 14 into the socket 12 initiated.
  • the downstream orifices 6 'to 9 or 14 to 16 reduce the water pressure to atmospheric pressure, so that no water penetrates through the thread entry hole 10 to the outside.
  • the sealing water is supplied from the inlet pipe 30 to the space between the first two plates 13 and 14.
  • the barrier liquid supply can also be connected to the space between the inlet or outlet opening and the first screen.
  • the pressure of the sealing water decreases again to atmospheric pressure via the downstream orifices 14 to 16.
  • the sealing water is pressed out of the sealing water collecting container 32 into the sealing water supply line 30 by means of a pump 33.
  • the pressure generated by the pump is selected such that a small amount of sealing water passes through the thread outlet opening 4 into the lower part of the steam vessel 3 and from there via the condensate line 26 into the distillation separator 127. In this way, it is prevented with certainty that steam from the steam vessel 3 reaches the sealing liquid nozzle 12 and there leads to evaporation of the sealing water.
  • the two thermally insulating intermediate pieces 131 and 132 which form the sealing liquid circuit, serve the same purpose Decouple thermally from the steam circuit.
  • the thermal decoupling achieved by the intermediate pieces 131 and 132 ensures that the heating energy supplied to the steam vessel 3 is not dissipated via the sealing liquid circuit, but instead fully benefits the filament heating. If the thread is to emerge from the collecting pipe 18 at the lowest possible temperature, a cooling device can be provided in the sealing water collecting tank 32.
  • the float-controlled valve 42 also serves to control the level in the steam generator 124. Both the steam circuit and the sealing water circuit are only present once for a large number of treatment vessels 3 of a texturing machine or other yarn processing machine.
  • the pipes of the steam circuit and the sealing water circuit are well insulated to keep thermal losses as low as possible.
  • the thread is inserted, for example, with the aid of a needle through the diaphragms, the insulating tubes, the steam space and the collecting tube, or inserted by opening these two-part device parts.
  • steam is first pressed into the steam vessel 3 via the line 21 when the sealing water circuit is blocked, in order to remove the air therein.
  • the sealing liquid circuit is then closed by switching on the pump 33 and thus the sealing of the steam vessel 3 to the outside is ensured.
  • a temperature controller (not shown), the sensor of which measures the temperature in the steam vessel 3, controls the steam generator 124 and thus the temperature of the saturated steam supplied via line 21 for the steam vessel 3 to the desired value required for the treatment of the thread 1.
  • the amount of steam supplied is set on valve 23.
  • the outlay in terms of equipment is low because only the steam vessels 3 with the sockets 5 and 12 and the collecting tube 18 are present in a number corresponding to the thread treatment stations, while all other parts of the device are only once per Machine are needed.
  • one of the steam vessels 3 is preferably used as the decisive pilot vessel.
  • the amount of steam to be fed depends on the amount of heat absorbed by the thread and the heat losses of the device.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP80105542A 1979-09-20 1980-09-16 Installation pour le traitement thermique de fils et de filés synthétiques Withdrawn EP0025968A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19792938117 DE2938117A1 (de) 1979-09-20 1979-09-20 Vorrichtung zur waermebehandlung von synthetischen faeden und garnen
DE2938117 1979-09-20
DE19803033409 DE3033409A1 (de) 1980-09-05 1980-09-05 Vorrichtung zur waermebehandlung von synthetischen faeden und garnen
DE3033409 1980-09-05

Publications (1)

Publication Number Publication Date
EP0025968A1 true EP0025968A1 (fr) 1981-04-01

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ID=25781101

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Application Number Title Priority Date Filing Date
EP80105542A Withdrawn EP0025968A1 (fr) 1979-09-20 1980-09-16 Installation pour le traitement thermique de fils et de filés synthétiques

Country Status (1)

Country Link
EP (1) EP0025968A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110923983A (zh) * 2019-12-06 2020-03-27 斯乔麦科技（深圳）有限公司 一种蒸汽预缩槽及其水洗机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR549121A (fr) * 1922-03-20 1923-02-02 Joint hermétique à fluide en mouvement
GB950349A (en) * 1960-12-06 1964-02-26 Asahi Chemical Ind Method and apparatus for the continuous treatment of textile fibres with steam under pressure
DE1760956A1 (de) * 1968-07-24 1972-01-13 Nobuhisa Kodaira Vorrichtung zur Waermebehandlung synthetischer Fasergarne
FR2098482A5 (fr) * 1970-01-21 1972-03-10 Omnium De Prospective Ind Sa
US3916651A (en) * 1973-11-28 1975-11-04 Turbo Machine Co Continuous bulking and heat setting of yarn
US3981162A (en) * 1972-11-29 1976-09-21 Shimon Klier Continuous treatment of textile materials
FR2307202A1 (fr) * 1975-04-07 1976-11-05 Sogeme Dispositif d'etancheite separant deux enceintes entre lesquelles circule un materiau en continu

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR549121A (fr) * 1922-03-20 1923-02-02 Joint hermétique à fluide en mouvement
GB950349A (en) * 1960-12-06 1964-02-26 Asahi Chemical Ind Method and apparatus for the continuous treatment of textile fibres with steam under pressure
DE1760956A1 (de) * 1968-07-24 1972-01-13 Nobuhisa Kodaira Vorrichtung zur Waermebehandlung synthetischer Fasergarne
FR2098482A5 (fr) * 1970-01-21 1972-03-10 Omnium De Prospective Ind Sa
US3981162A (en) * 1972-11-29 1976-09-21 Shimon Klier Continuous treatment of textile materials
US3916651A (en) * 1973-11-28 1975-11-04 Turbo Machine Co Continuous bulking and heat setting of yarn
FR2307202A1 (fr) * 1975-04-07 1976-11-05 Sogeme Dispositif d'etancheite separant deux enceintes entre lesquelles circule un materiau en continu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110923983A (zh) * 2019-12-06 2020-03-27 斯乔麦科技（深圳）有限公司 一种蒸汽预缩槽及其水洗机

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19820311

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Inventor name: BOERNER, MANFRED, ING. GRAD

Inventor name: WESTEBBE, PETER, ING. GRAD

Inventor name: BROSSMER, MAX, DIPL.-ING.