EP2963299B1 - Procede d'etancheification de vapeur et compresseur de vapeur - Google Patents

Procede d'etancheification de vapeur et compresseur de vapeur Download PDF

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Publication number
EP2963299B1
EP2963299B1 EP15001841.4A EP15001841A EP2963299B1 EP 2963299 B1 EP2963299 B1 EP 2963299B1 EP 15001841 A EP15001841 A EP 15001841A EP 2963299 B1 EP2963299 B1 EP 2963299B1
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EP
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Prior art keywords
compressor
rotor
housing
steam
medium
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EP15001841.4A
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German (de)
English (en)
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EP2963299A1 (fr
Inventor
Denecke KNUT
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/348—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1077—Steam

Definitions

  • the invention relates to a method for compressing a vapor of a medium by means of a rotary vane steam compressor having a rotor rotatably mounted about a drive shaft with at least one slide and at least one compressor chamber bounded by a housing and at least by the at least one slide, wherein mechanical seals on the drive shaft seal the at least one compression chamber against the external atmosphere.
  • the invention also relates to a rotary vane steam compressor for carrying out such a method.
  • the main field of application for such a method for compressing a vapor of a medium and the vapor compressor used therefor is the compression of water vapor.
  • other media such as alcohols or other hydrocarbons can be used.
  • the saturated steam temperature is to be raised, so that a more effective use of heat and heat recovery is achieved, for example, for working on the heat pump principle devices.
  • compressors can also be used for general gas compression as a compressor or for heat generation.
  • vapors can also be compressed by the method and the vapor compressor.
  • vapors are meant all gases which are produced during one-stage or multistage distillation of liquid mixtures, during evaporation, degassing or during drying.
  • compressors In compressing air to produce compressed air, compressors are known which have a water injection, the water being used for sealing, cooling and lubricating. Such a system is for example from the DE 10 2004 053 895 A1 known. The water is injected at different positions in the compression chamber and later separated again from the compressed gas. When compacting, it does not lead to a significant increase in temperature, so that the compressed compressed air has hardly absorbed water.
  • Lubrication with, for example, conventional pump technology known oils, such as a hydraulic oil can not be used in an economically meaningful way, since this oil would not be separable with economically feasible effort of the compressed steam after he the compressor or the compression chamber has left.
  • a heat recovery system in which, for example, in the waste incineration heat is converted into mechanical work.
  • an expander is used in which the hot pressurized steam is expanded and cooled.
  • the device mentioned in the document can conversely also be used as a compressor to compress air.
  • the slides of the compressor are lubricated with water.
  • the invention is therefore based on the object to develop a method for compressing a vapor of a medium as well as a rotary vane steam compressor so that the wear is reduced and at the same time the process is economically feasible with economically justifiable expense.
  • the invention achieves the stated object by a method for compressing a vapor of a medium by means of a rotary vane steam compressor having a rotor rotatably mounted about a drive shaft with at least one slide and at least one compressor chamber through a housing and at least by the at least one Slider is limited, with mechanical seals on the drive shaft which seal at least one compressor chamber against the external atmosphere, wherein the method is characterized in that the medium is used in liquid form as a lubricant by at least one feed in the storage in a gap space between the Housing and the rotor is passed, wherein the mechanical seals are lubricated by the liquid medium, which is passed over the at least one feed into the storage.
  • This embodiment of the method has a number of advantages over the method known from the prior art. So that serves in liquid Form introduced into the gap space medium as a lubricant and at the same time as a seal of the gap, so that the compression chamber for the vapor of the medium sealed sealing and at the same time the wear is reduced by friction between the movable slide and the housing. If steam is to be compressed by the process, for example, water in liquid form is used as the lubricant. This has the further advantage that the lubricant does not have to be separated from the vapor of the medium in complex processes after it has left the vapor compressor. Since it is preferably the same medium, which is introduced only in different physical states in the compressor, a separation is not necessary.
  • the vapor compressor is a rotary vane vapor compressor which has a rotor with at least one slide.
  • the rotor is rotatably mounted about a drive shaft.
  • the at least one slide is positioned on the rotor so that it is displaceably mounted, so that it protrudes more or less far beyond the outer circumference of the rotor depending on the displacement within its storage and with the projecting beyond this circumference end of the inner wall of the housing is applied.
  • the housing may advantageously be rotationally symmetrical about a housing axis, for example in the form of a hollow cylinder.
  • the drive shaft, about which the rotor is rotatably mounted, is advantageously arranged displaced relative to the housing axis, but both extend in parallel.
  • the at least one Slider moves with its protruding from the rotor end along the inner wall of the housing and with its radially extending side surfaces along end plates or housing flanges that limit the housing in the axial direction.
  • both areas especially at high rotational speeds and rotational speeds of the rotor, strong friction occurs, so that advantageously there is also a gap space at all of these positions.
  • the medium can be introduced in liquid form, so that it reduces the friction as a lubricant.
  • the drive shaft of the rotor is advantageously mounted on mechanical seals, which are lubricated by the liquid medium, which is passed over the at least one feed into the storage.
  • the mechanical seals seal the compressor chamber against the external atmosphere at the drive axle.
  • other sealing elements such as a shaft seal, may be provided, but only as a safety seal, for example, in case of leakage, protect the bearing of the drive shaft.
  • the housing and / or the rotor are designed such that the liquid medium in the gap space is under a back pressure which is greater than a chamber pressure, under which the vapor of the medium is in the compression chamber.
  • a back pressure which is greater than a chamber pressure, under which the vapor of the medium is in the compression chamber.
  • This can be achieved by appropriate sealing measures of the gap, which are known in principle from the prior art, such as an opposing profiling, for example, the centrifugal pump principle, or a circumferential seal of the rotor against the walls of the housing, for example made of Teflon (PTFE) can exist.
  • the back pressure is advantageous in order to achieve that the liquid medium introduced does not evaporate immediately, but at least for a certain time exists in liquid form between the housing and the rotor and in particular whose movably designed slide and so can seal the gap and lubricate.
  • the back pressure must be greater than the chamber pressure below which the vapor of the medium is in the compression chamber.
  • the backpressure is greater than the maximum chamber pressure that can be achieved during a circulation of the vapor compressor. Since the compressor is to compress and compress the vapor of the medium, the pressure inside the chamber must be increased.
  • the backpressure is advantageously greater than the maximum chamber pressure achievable in this way.
  • the liquid medium is introduced into the gap space as close as possible to the rotor axis in the case of a gap space extending at least in the radial direction as well. Due to the rotational movement of the rotor and the centrifugal forces occurring thereby, the medium introduced in liquid form is moved radially outwards and thus fills the entire gap space. At the same time, the liquid medium is distributed by the at least one slide, which rotates with the rotor and performs at least a radial movement. According to the invention, the introduced liquid medium is also used, for example, to lubricate the mechanical seal of the drive shaft, which ensures the seal to the outside.
  • the sealing of the drive shaft can be done in this way, for example in the form of a Gleitringwellenabdichtung in this way. In this way, only a lubricant and sealant is necessary, which also can easily connect to the vapor to be compressed of the medium and not have to be separated after leaving the compressor in complex processes of this steam.
  • At least a portion of the liquid medium evaporates as it enters the compression chamber from the gap space.
  • This also applies advantageously to the part of the liquid medium which enters the compression chamber from an area between the drive shaft of the rotor and the housing wall, provided that water is present in this area is introduced in liquid form.
  • the vapor of the medium should absorb as much of the liquid medium. For the uniform distribution of the medium on the housing inner wall of advantage. This is particularly advantageous when water vapor is compressed and liquid water is used as a lubricant.
  • the liquid medium is advantageously under the increased back pressure, which is greater than the chamber pressure within the evaporation chamber, there will be a so-called “flash evaporation", which designates an almost sudden evaporation of a relatively large proportion of the liquid medium.
  • flash evaporation designates an almost sudden evaporation of a relatively large proportion of the liquid medium.
  • the evaporation performance is increased and at the same time the steam superheating of the vapor of the medium counteracted. Due to the evaporation of the medium introduced in liquid form, the vaporous medium is deprived of energy and thus the temperature is lowered. Certain process parameters of the process may cause the entire liquid portion of the medium to vaporize as it enters the compression chamber. In this case it is possible, for example by spraying or injecting, to introduce further liquid medium into the compression chamber so as to reduce the temperature of the steam and counteract steam overheating.
  • a non-vaporized portion of the liquid medium entering the compression chamber exits the compression chamber through at least one outlet opening through which the compressed vapor also exits the chamber.
  • an additional bore can be arranged and closed with a valve. Through this hole additional liquid medium can be introduced into the compression chamber.
  • the non-evaporated liquid medium collects in particular by the rotational movement of the rotor on the inner wall of the housing and can lubricate in this way, in particular in a rotary vane steam compressor, the slide in its contact with the housing wall.
  • At least a part of the housing can be formed by a rotating hollow cylinder.
  • the hollow cylinder rotates about a housing axis, which is a rotational symmetry axis of the housing and thus also of the hollow cylinder. It advantageously has the same rotational speed or speed as the rotor.
  • this rotating hollow cylinder is mounted in a further outer ring of the housing.
  • a gap between the hollow cylinder and the shell ring is in fluid communication with the compression chamber.
  • liquid medium emerging from the compressor chamber is usefully used.
  • an additional supply can be provided for further liquid medium.
  • This can be done via injection openings or nozzles, can pass through the other liquid medium in this space.
  • the rotating hollow cylinder can be provided with recesses in areas in which, for example, the radially outer ends of the rotary valves abut the rotating hollow cylinder.
  • a proportion of the liquid medium would collect, so that here increases the sealing and lubricating effect for the same total amount of liquid medium within the compression chamber.
  • the vapor compressor is a rotary vane vapor compressor which has a housing and a rotor rotatably mounted about a drive shaft, wherein on the rotor at least one slide is arranged, which is displaceable so that it projects beyond the rotor radially outward with respect to a rotor axis.
  • a gap is formed between the housing and the rotor, to which the at least one slide belongs, into which the medium can be introduced in liquid form via the feed.
  • two, three, more preferably four slides are arranged on the rotor. It is also possible to arrange a larger number of slides on the rotor. It has proven to be advantageous if the slide is not displaceable with respect to the rotor axis exactly radially outward or inward, but if an angle is included between the radial direction with respect to the rotor axes and the direction of displacement of the respective slide, which is different from 0 °. An alignment of the displacement direction in the radial direction is possible.
  • a plurality of slides are arranged on the rotor.
  • the introduction of the liquid medium into the gap space is effected by the at least one feed, through which the liquid medium is preferably also introduced into the bearing of the drive shaft for lubricating the mechanical seal.
  • the medium occurs after the lubrication of the mechanical seals in particular at least one end face of the compression chamber in the chamber and is guided by the movement of the rotor with the slider along this end face, which is formed for example by a housing flange, in the gap space between the rotor and the housing.
  • a separate supply, for example, within the slider or within an end face of the housing is not necessary.
  • the housing is formed by a hollow cylinder rotatably mounted about a housing axis, wherein the housing axis is parallel and displaced to the rotor axis, which extends in particular in the longitudinal and symmetry axis of the drive shaft extends.
  • An exemplary embodiment of such a rotary vane steam compressor has a hollow cylindrical housing with a housing inner diameter of for example 180 mm.
  • the axial length of the housing is for example 200 mm.
  • the rotor is arranged eccentrically, which has an outer diameter of for example 150 mm. This results in a total chamber volume of 1.56 dm 3 , wherein at each revolution of the rotor about twice this chamber volume is sucked. If such a compressor absorbs steam at an absolute pressure of, for example, 0.5 bar, this means a compression mass of 0.96 g per revolution and, at 1,000 revolutions per minute, a compression mass of 58 kg per hour.
  • the compressor capacity to be applied can be calculated.
  • the free surface of the slide, which applies the compression power, ie in the position in which the slider is moved out of the rotor as far as possible, in this case, for example, is 6,000 mm 2 .
  • the required force for this compression is 600 N, so that at a peripheral speed of the spool at 1,000 rpm of 8.64 m per second, a compressor capacity of 5,184 W results.
  • this compressor line would be fully incorporated into the increase in temperature of the steam. When using the water vapor, this leads to a temperature increase of 196 ° K.
  • the required amount of water to be evaporated in the compressor room to achieve a saturated steam temperature of, for example, 111 ° C at 1.5 bar absolute at the pressure outlet is at a compression capacity of, for example, 50 kg per hour at about 8.3 liters per hour.
  • a compression capacity of, for example, 50 kg per hour at about 8.3 liters per hour.
  • Other dimensions, pressure differences, inlet and outlet pressures are also possible.
  • the use of another medium leads to different temperature increase and compressor performance.
  • the liquid medium in particular water
  • the sliders which are parts of the rotor, are lubricated by the liquid under pressure in this area.
  • the slides are preferably as close as possible to the housing wall, in particular on the end walls, to what can be supported, for example, by force application elements, such as spring elements.
  • the slides slide in this case only on the housing wall and are lubricated by the film located thereon of liquid medium.
  • sealing elements are arranged on the end faces of the rotor, which effect a sealing of the end face of the rotor to the housing.
  • sealing elements are attached to the end faces of the hollow cylinder, which can be designed to rotate. These are for example in the form of sealing rings, which advantageously have the same diameter as the hollow cylinder. All of these sealing elements are in contact with the respective side wall and may advantageously be made of PTFE so that they have good sliding properties. This supports the sliding property of the lubricant.
  • the seals are for example provided with obliquely extending small grooves, so profiled that a fluid pressure in the direction of the outer housing ring between the rotating hollow cylinder and the outer housing ring surrounding the hollow cylinder is achieved.
  • the effect of this profiling is very similar to that of a centrifugal pump.
  • the pressure built up thereby ensures that the liquid medium, which acts as a lubricant, is kept under pressure in the intermediate space between the housing ring and the rotating hollow cylinder. Excess lubricant re-emerges on the side where the pressure in the compression chamber is lower. This is the side on which the suction opening is located. This results in a desired circulation of the lubricant, which is supported by the internal friction between the rotating hollow cylinder and the housing ring.
  • FIG. 1 shows a cross-sectional view through a vapor compressor 1, which has a housing 2, which is partially formed in the illustrated embodiment by a rotating hollow cylinder 4.
  • a rotor 6 is arranged, which is rotatably mounted about a rotor axis 8. He has a drive shaft 10 which is driven by a motor, not shown.
  • a shroud 12 Outside the hollow cylinder 4 is a shroud 12.
  • four slides 14 are positioned with a slide core 16 in the illustrated embodiment, which abut with a radially outer end 18 of the hollow cylinder 4.
  • recesses 20 are arranged in the hollow cylinder, in which the radially outer end 18 of the slide 16 rests against the hollow cylinder 4. In these recesses 20 can accumulate lubricants and sealants and so increase the sealing and lubricating effect.
  • the slides 14 are each mounted in a slide groove 22, in which they are displaceable along the slide groove 22. It can be seen in the embodiment shown that the slide grooves 22 and the slider 14 are not arranged and displaced exactly in the radial direction, but that there is an angle between the direction of displacement of the slider 14 in the slide grooves 22 and the radially outward radial direction.
  • the rotor 6 is rotated about the rotor axis 8 and the hollow cylinder 4 about a housing axis 24. In this case, slide the outer ends 18 of the slider 14 in the recesses 20 along.
  • the vapor compressor 1 has at least one outlet opening 28 and at least one suction opening 30.
  • FIG. 2 shows a longitudinal sectional view through the vapor compressor 1. It can be seen the shroud 12, the hollow cylinder 4 and the rotor 6, which is rotatable by the drive shaft 10.
  • the housing 2 In the axial direction, the housing 2 is bounded by two housing flanges 32 which are rigidly connected to the shroud 12. Between the housing flange 32 and the rotor 6 is a rotor seal 34, through which the compressor chamber 26 is sealed radially inward. After radially outward this assumes a hollow cylinder seal 36 which is positioned between the rotatably mounted hollow cylinder 4 and the housing flange 32.
  • the shroud 12 there is at least one inlet opening 38 through which additional liquid medium, in particular water, for the lubrication of the hollow cylinder 4 can be supplied.
  • the drive shaft 10 is mounted via a bearing 40, and is sealed by shaft seals 42 to the outside.
  • the medium to be compressed in the vapor state through the system can be supplied in liquid form.
  • the introduced via the feeds 44 liquid medium is moved by the rotation of the rotor 6 radially outward on the inner sides of the housing flange and thus lubricates the gap between the housing flange 32 as part of the housing 2 and the rotor 6.
  • Radial outward on the rotor 6 is located the rotor seal 34, which ensures sufficient pressure of the liquid medium in the gap.
  • the liquid medium is carried further radially outward and thus enters the compression chamber 26.
  • the portion of the liquid medium that does not evaporate in the compression chamber 26 enters between the hollow cylinder seal 36 and the housing flange 32 in a space between the hollow cylinder 4 and the shroud 12 a.
  • the hollow cylinder seal 36 By the hollow cylinder seal 36, a sufficient pressure is built up here, which prevents further evaporation of the now acting again as a lubricant liquid medium.
  • FIG. 3 shows the schematic view of a plant for carrying out the method. It can be seen the vapor compressor 1 with the housing 2 wherein via a steam supply 46 vapor of a medium at relatively low pressure in the compression chamber of the vapor compressor 1 is introduced. Via a motor 48, the drive shaft 10 of the rotor 6 is driven. After compression, the compressed steam leaves the actual vapor compressor 1 via a vapor discharge 50 and is fed to a water separator 52. In the exemplary embodiment shown, water vapor is to be compressed, so that liquid water is used as the sealing and lubricating medium. This is about a water supply line 54 of the feed 44 and thus enters the steam compressor 1 a. Via a feed valve 56 and a pump 58, the amount of water supplied can be adjusted. In the water separator 52, water vapor is separated from the liquid water, wherein the water vapor is supplied to the use and the separated water is introduced again into the vapor compressor 1.
  • the water from the water separator 42 is introduced into a reservoir 60, whose level is determined by a level sensor 62.
  • a pressure sensor 64 In the water supply line 54 there is a pressure sensor 64, a conductivity sensor 66 and a treatment filter 68, with which an optimum for the further system water quality can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (9)

  1. Procédé de compression d'une vapeur d'un milieu au moyen d'un compresseur à vapeur (1) à tiroir rotatif qui comprend un rotor (6) monté mobile en rotation autour d'un arbre d'entraînement (10) et pourvu d'au moins un tiroir (14) et qui comprend au moins une chambre de compresseur (26) qui est délimitée par un boîtier (2) et également par ledit au moins un tiroir (14), des garnitures étanches à anneau glissant (43) sur l'arbre d'entraînement (10) venant étancher ladite au moins une chambre de compresseur (26) vis-à-vis de l'atmosphère extérieure,
    caractérisé en ce que
    le milieu est utilisé sous forme liquide à titre de lubrifiant qui est amené à travers au moins une admission (44) dans le support jusque dans un interstice entre le boîtier (2) et le rotor (6), les garnitures étanches à anneau glissant (43) étant lubrifiées par le milieu liquide qui est amené par ladite au moins une admission (44) jusque dans le support.
  2. Procédé selon la revendication 1, caractérisé en ce que le boîtier (2) et/ou le rotor (6) sont réalisés de telle sorte que le milieu liquide dans l'interstice est soumis à une contrepression qui est supérieure à la pression de la chambre à laquelle est soumise la vapeur du milieu dans la chambre de compresseur (26).
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une partie au moins du milieu liquide s'évapore lorsqu'il entre depuis l'interstice dans la chambre de compresseur (26).
  4. Procédé selon la revendication 3, caractérisé en ce qu'une part non évaporée du milieu liquide entré dans la chambre de compresseur (26) quitte la chambre de compresseur (26) par au moins une ouverture de sortie (28).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une partie au moins du boîtier (2) est formée par un cylindre creux (4) en rotation.
  6. Compresseur à vapeur (1) à tiroir rotatif pour mettre en oeuvre un procédé selon l'une des revendications précédentes.
  7. Compresseur à vapeur (1) à tiroir rotatif selon la revendication 6, caractérisé en ce que le tiroir (14) est monté mobile en translation de manière à dépasser radialement vers l'extérieur au-delà du rotor (6) par rapport à un axe de rotor (8).
  8. Compresseur à vapeur (1) à tiroir rotatif selon la revendication 7, caractérisé en ce que plusieurs tiroirs (14) sont agencés sur le rotor (6).
  9. Compresseur à vapeur (1) à tiroir rotatif selon la revendication 7 ou 8, caractérisé en ce qu'une partie au moins du boîtier (2) est formée par un cylindre creux (4) monté mobile en rotation autour d'un axe de boîtier (24), l'axe de boîtier (24) s'étendant parallèlement et en décalage par rapport à l'axe de rotor (8).
EP15001841.4A 2014-07-03 2015-06-22 Procede d'etancheification de vapeur et compresseur de vapeur Active EP2963299B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014010149.5A DE102014010149B3 (de) 2014-07-03 2014-07-03 Verfahren zum Verdichten eines Dampfes und Dampfverdichter

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EP2963299A1 EP2963299A1 (fr) 2016-01-06
EP2963299B1 true EP2963299B1 (fr) 2019-05-01

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DE (1) DE102014010149B3 (fr)
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DE102014010149B3 (de) 2015-08-13
ES2737628T3 (es) 2020-01-15

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