WO2018197967A1 - Dispositif pour séparer du liquide d'un flux de gaz dans un compresseur à injection de liquide et procédé associé - Google Patents

Dispositif pour séparer du liquide d'un flux de gaz dans un compresseur à injection de liquide et procédé associé Download PDF

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Publication number
WO2018197967A1
WO2018197967A1 PCT/IB2018/051851 IB2018051851W WO2018197967A1 WO 2018197967 A1 WO2018197967 A1 WO 2018197967A1 IB 2018051851 W IB2018051851 W IB 2018051851W WO 2018197967 A1 WO2018197967 A1 WO 2018197967A1
Authority
WO
WIPO (PCT)
Prior art keywords
onto
liquid
fluid
inlet
plate
Prior art date
Application number
PCT/IB2018/051851
Other languages
English (en)
Inventor
Glenn VINCK
Original Assignee
Atlas Copco Airpower, Naamloze Vennootschap
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 BE2017/5477A external-priority patent/BE1025205B1/nl
Application filed by Atlas Copco Airpower, Naamloze Vennootschap filed Critical Atlas Copco Airpower, Naamloze Vennootschap
Priority to US16/499,485 priority Critical patent/US11235269B2/en
Priority to CA3057001A priority patent/CA3057001C/fr
Priority to RU2019138051A priority patent/RU2735684C1/ru
Priority to EP18717126.9A priority patent/EP3615173B1/fr
Priority to BR112019022182-4A priority patent/BR112019022182B1/pt
Publication of WO2018197967A1 publication Critical patent/WO2018197967A1/fr

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Classifications

    • 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
    • F04C29/026—Lubricant separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • 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
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/28—Multiple arrangement thereof for parallel flow

Definitions

  • This invention relates to a device for separating liquid from a gas stream within a liquid injected compressor, said device comprising a first vessel comprising a first bottom p1ate, a first l-ateral wall comprising an inlet fluidly connected with a compressed gas outlet and a Iid comprising the outfet, the device further comprising:
  • a first separati-on means comprising a first and a second liquid separation areas, sai-d first and second liquid separati-on areas being in ftuid communication with the inlet; whereby each of the first and second 1j-quid separation area comprises a first plate onto which a circular wall is mounted, whereby a first and a second fluid channel is created between each of said circular wal-I and the first lateral wall-;
  • a second separation means provided in each of the flrst and second liquid separation area, said second separation means comprising at least a cyclone mounted therein,'
  • a third separati-on means comprising at least a fil-ter mounted therein, whereby said filter is fluidly connected to one of said cyclones and whereby the third separation means is in fluid communication with the outlet; and the inlet channel comprisi-ng a fin type of structure for dividing the gas flowing through the ⁇ nlet j-nto two fl-ows.
  • the present lnvention solves at least one of the above and/or other problems by providing a device for separating a tiquid from a gas stream within a liquid injected compressor, said device comprlsing a first vessel comprisi-ng a f irst bottom p1ate, a f irst lateral_ waf f comprising an inlet fluidly connected with a compressed gas outlet and a lid comprising an outlet, the device further comprislng: a first separation means comprisj-ng a first and a second liquid separation area, said first and second liquid separation area being in fluld communication with the inlet; whereby each of the first and second liquid separation area comprises a first plate onto which a circular waII is mounted, whereby a first and a second fluid channel is created between each of said circul-ar wall and the first lateral wall;
  • a second separation means provided j-n each of the first and second liquld separation area, said second separat ion means compr j- s i-ng at Ieast a cyc lone mounted therein;
  • a third separation means comprising at least a fil-ter mounted therein, whereby said filter is fluidly c onnected to one of said cyclones and whereby the third separation means is in fl-uid communication with the outlet;
  • an inl-et channel being in fucid communj-cation with said inlet, the inlet channel- comprlsing a fin type of structure for dividing the gas flowing through the lnlet into two flows; whereby the device further comprises said inlet channel comprising a top panel and a bottom panel having one end adapted to be mounted onto the flrst lateral wafI, whereby at Ieast said top panel is creating a slope, having the highest point onto the f lrst f ateral wal-l and the l_owest point at the opposj-te end.
  • the inlet channel- comprises a top panel and a bottom pane1
  • the fluid flowing through the inlet is guided in a downwards movement, being pushed in the direction of the bottom p1ate.
  • the device comprises such an inlet channel with at least the top panel provided under an angle and the two circular waIls creating a first and second fluid channel, because not only the fluid is guided in a downward movement as the fluid flows towards the fi-rst and second fluid channel but such a movement is maintained through such channels increasing even more the quantity of liquid extracted.
  • the cyclones and said at least one filter are further protected from the potential damaging properties of the liquid, decreasing the frequency of service interventions and increaslng the lifetime of the cyclones and of sai-d the at least one filter.
  • the present invention is further directed to a method for separating a liquid from a gas stream within a Iiquid injected compressor, said method comprising the steps of: provlding a flrst separation means comprising a first and a second Iiquid separati_on area, each of the fi-rst and second liquid separation area comprising a first plate onto which a circu1ar wall is mounted and providing a f irst and second f l-uld channel_ between each of said circular wall and a first lateral wall_; providing a second separation means i-n each of the first and second Ii-quid separation area, and providing at Ieast a cyclone therein; providing a third separation means comprising at l-east a f11ter, said filter being provided in fluid communication with one of said cyclones,.
  • a first vessel comprising the first and second Iiquid separation area, the second separation means and the third separation means, said first vessel comprising the first lateral wall comprising said inlet, a flrst bottom plate and a Iid comprising an outlet; providing a fin type of structure for splitting the fluid fl-ow from the inlet through the first and second fluid channefs; guiding the fluid from the first and second Iiquj-d separation area through the second separation means, collecting the Iiquid dripping from said fluid onto the first bottom plate, and further guiding the fluid through said third separation means before directing it through said outlet;
  • the method further comprises the steps of: providing an inlet channel- comprising a top panel and a bottom panel and guiding the fluid flowing through said inlet channel in a downwards movement and further splittinq it into two flows, through the flrst and second fluid channef, by a fin.
  • the present invention is further directed towards a device for separating liquid from a gas stream within a liquid injected vacuum pump, said device compri-sing a first bottom p1ate, a first Iateral wall comprising an inlet fluidJ-y connected with an outlet of the vacuum pump and a 1id comprising an outlet, the device further comprising: a first separation means comprising a first and a second liqui-d separation area, said first and second Iiquid separation area being in fluid communication wj-th the inlet; whereby each of the flrst and second tiquid separatlon area comprises a first plate onto which a circular wafl is mounted, whereby a first and a second fluid channel 1s created between said each of said circular wall and the first ]ateral wall,- a second separatlon means provided
  • an inlet channel being in fluid communication with said inl-et, said inlet channel- comprising a f in type of structure for dividing the gas flowing through the inlet into two flows
  • said device further comprises: said inlet channel comprising a top panel and a bottom panel having one end adapted to be mounted onto the lateraf wal1, whereby at feast said top panel is creating a slope, having the highest point onto the first lateral walI and the lowest point at the opposite end.
  • figure 1 schematically represents a device for separating Iiquj-d from a gas stream mounted within a liquid injected compressor,.
  • figure 2 schematically represents a cut-through of a device according to an embodiment of the present invention, according to l-ine I-I from figure 1,;
  • figure 3 represents a top view of the first 1iquid separation area, the second Ilquid separation area and part of the inlet channel_ according to an embodiment of the present invention;
  • figure 4 schematically represents a cut-through of a device according to an embodiment of the present invention, according to line II-II from figure l;
  • figure 5 schematicalJ-y represent a lateral view of a second vessel and of a circul-ar wall according to an embodiment of the present invention;
  • figure 6 represents a top view of the first liquid separation area, the second liquid separation area and the inlet channel according to an embodiment of the present inventioni and
  • FIG 7 schematically represents a device for separating liquid from a gas stream mounted within a liquid injected vacuum pump.
  • Figure 1 shows a device 1 for separating liquid from a gas stream, said device 1 comprising an inlet 2 connected to a compressed gas outfet 3 of the compressor 4 and an outlet 5 providlng relatively pure gas to a user, s network 6.
  • the compressor 4 being a Iiquid injected compressor.
  • the compressor 4 typically having a gas inlet 7 throughwhich ambient air is drawn in or process gas from a user, s system (not shown) .
  • the devlce 1 comprises a first vessel B comprising a first bottom pJ_ate 9, a first lateraf wall 10 comprising said inlet 2 fJ_uidly connected with said compressed gas outl-et 3 and a lid 11 comprising the outlet 5.
  • the device 1 further comprises a separation means comprising a fj-rst and a second Iiquid separation areas, 72a and 12b, whereby the fluid entering through the inl_et 2 ts flowing towards said first and second liquid separation areas , 12a and l2b.
  • Each of the first and second liquid separation area, l2a and 72b, further comprises a first ptate, 13a or 13b, onto which a circular wall , 74a or 74b, j_s mounted.
  • the device 1 further comprises a first and a second fluid channel, 15a and 15b, created between each of said circular waI1s, 14a and ]-Ab, and the first lateral walf 10, as ill-ustrated in figure 3.
  • the inlet of the filter 1-1 is mounted directly onto the outfet of the cycJ-one 16. Conseguently, the fluid flowing out of the filter lj is further flowing throuqh the outfet 5.
  • the device 1 further comprises an inlet channel 1B being in fluid communication with said infet 2.
  • Such i-nfet channel 18 preferably comprising a top panel 79 and a bottom panel 20, whereby each of said top panel 79 and sald bottom panel 20 have one end adapted to be mounted onto the first lateral wall 10.
  • the top panel 79 is preferably fixed onto the first Iateraf wall 10 above the inlet 2, and the bottom panel 20 is fixed onto the first lateral wa]l 10 under the inlet Z. Accordingly, the inlet 2 ts received between the bottom panel 20 and the t.op panel 19.
  • the top panel 19 is creating a s1ope, having the highest point onto the first lateral- wall 10 and the l-owest point at the opposite end.
  • the top panel 19 creating a slope should be understood as mounting said top panel 79 such that it is projectj_ng downwards from the lateral wal110 and in the directlon of the first and second fluid channefs 15a and 15b.
  • an acute angle 1s encountered said acute angle being realized by the top panel 79 and the first lateral wafl 10.
  • An acute angle should be understood as an angle smaller than 900 (ninety degrees).
  • the inlet channel 1B comprises a fin 2l type of structure.
  • said fin 27 is belng mounted onto the bottom panel 20.
  • the device 1 is buirt in such a way that two approximately identj-cal ha]ves are created, one comprising the first liquid separation area l2a and the second one comprising the second liquid separation area 72b, and because the pressure within the two halves is approximately equaI, the fluid flowing through said inlet 2 is being split into two approximatefy equal flows.
  • the fi_n 2l comprises a first and a second continuous vertical structure, 27a and 21b, adjoj_ned together under an angIe.
  • the first and second continuous vertical structures 27a and 27b are fixed onto the first lateral wal-I 10 .
  • the fin 2 ⁇ being mounted on the opposite side from the infet 2 and relatively central_ wlth respect to said inlet 2.
  • each one of the first and second continuous vertical structures, 27a and 2!b are in the shape of a circular arc.
  • the first l-aterar walr 10 and each of the first and second continuous vertical- structures, 21a and 21b, are creating a clrcu1ar arc.
  • the circul-ar arc created by each of the flrst and second continuous vertical_ structures, 21,a and 2]-b is continued by the curvature of said first r-aterar wall 10.
  • the circular arc created by each of the first and second continuous vertical structures, 21a and 2!b, and the curvature of said first rateral- walr 10 is a continuous clrcurar arc, without any turning points.
  • the riquid partlcres comprised withln the fruld flowing through the inl-et 2 will not directly hit the first and second continuous vertical- structures, 27a and 2lb, or the first laterar wall but wirr adhere to them and sl-ide under the gravitationaf force towards the bottom panel zo and further towards the first bottom plate 9, eriminating the risk of such llquid particres to bounce back into the flow stream and increasing the quantity of liquid extracted throughout the length of the inlet channel 18, the first fluid channel 15a and second fluid channel 15b.
  • the first rateral wall- 10 wirl- have the shape of two semic j-rcres adjoined by a middle section comprising the inlet channel 18.
  • each of the two continuous vertical structures, 2la and Z1,b is paral IeI to each of said circul-ar waIls, L4a and 14b.
  • each of the circular walls 74a and 14b are mounted on the one end onto the first lateral wall 10, next to the in1et 2, and on the other end onto the respective first plate 13a and 13b.
  • the i-nlet 2 is bordered by the circul-ar wall-s l4a and 74b, the top panel 19 and the bottom panel 20 as can be seen in figure 2.
  • the top panel 19 at its l-ower end, or the end from the opposite side of the inlet 2 is adjoined to the fin 21. Accordingly, the fluid flowing through the inlet 2 wiII be continuously guided downwards at least until reaching the fin 21, increasing the efficiency of liquid extraction.
  • the top panel 19 can be fixed only on the first lateral- wall 10.
  • the top panel 19 can be fixed to the first lateral wall 10 and to the circul-ar wal-Is l4a and 14b.
  • top panel 19 can be a casted component within said first Iateral wall and possibly within the circular walf s l-4a and 14b.
  • the top panel 79 can be of any length LL' , selected between approximately 252 from the depth LL" of the first vessel B, and approximately 908 from said depth LL,, .
  • the Iength LL' of the top panel 19 is selected such that it at least reaches the find 21.
  • the top panel 19 and the bottom panel 20 are parallel to each other. Because of such a structural feature, the device 1 according to the present invention el-j-minates the rlsk of the liquid particles to directly hit the bottom panel 20 and bounce back into the fluid stream.
  • the slope of the top panel 19 and/or of the bottom panel 20, or the angle cx from figure 4 is of at least approxj-mately 100 (ten degrees), the angle of 100 being measured at the intersection between the top panel 19 and a horizontal surface.
  • the angle Cx can be measured at the intersection between the separatj-ng plate 22 and the top panel 19 if the separating plate 22 and the top panel 79 are fixed onto the flrst lateral wall 10 at the same location.
  • said angle cx can be measured between the top panel 19 and a surface paraIleI to the separating plate 22, saj-d surface being drawn through the focation where the top panel 19 is j-ntersecting the flrst lateraf waII 10. Accordingly, if we turn to figure 4, the angle Cx can be measured between the virtual surface AA' drawn alongside and in continuation of the surface defined by the top panel 19 and the virtual surface AA", drawn from the l-ocation where the top panel 19 is intersecting the first lateral- wa11 10 and para11e1 to or alongside and in continuation of the surface defined by the separating plate 22. In the context of the present invention it shoul-d be understood that said slope can be bigger or smaller than 100 (ten degrees) and preferably said slope is different than 0o (zero degrees) .
  • the maximum angle cx of the slope can be determined as follows: if we were to consider the virtual point HH at the intersection between the surface CC' and the first lateral waII 10.
  • the virtual point HH being Iocated at a height H1 measured. from the l-evel of the first bottom plate 9, said height H1, at its lowest point, can be of approximately three times the maximum height H2 of liquid which can be found in the first vessel- B, said height H2 being measured also from the Ievel of the first bottom plate 9.
  • sai-d angle cx can be selected as any va1ue between approximateJ_y 100 and approxlmately 450 (forty-five degrees), more preferably said angle cx can be selected as any value between approximately 100 and approximately 300 (thirty degrees), even more preferably said angl-e Cx can be sefected between approximately 100 and approximately 200 (twenty degrees).
  • the slope of the top panel 19 can have the same value as the slope of the bottom panel 20 or can be of different val-ue.
  • the f irst vessel- B further compri-ses a f irst liquid extraction means such as for example a valve, a pi-pe, a tap or the l-ike, mounted onto the first l-ateral- walI 10, for draining the tiquid gathered onto the first bottom plate 9 and possibly recirculating such liquid by injecting it into the compressor 4.
  • the maximum height H2 of liquid which can be found in the first vessel B is the maximum allowed height at which the first Iiquid extraction means starts to extract liquid from the first vessel B.
  • the device 1 further comprises a separati-ng plate 22 onto which the filter 71 i-s mounted. Because such separating plate 22 is mounted, the fluid flowing through the flrst and second liquid separati-on areas l2a and l2b cannot reach the third separating means without fJ-owing through said at least one cyclone 16. Accordingly, a minimum requirement for the concentration of liquid in the fluid flowing through the third separation means is assured.
  • the circul-ar wa11s l-4a and L4b are extending between the respective fj-rst plate 13a or 13b and the separatlng plate 22. Accordingly, the fluid flowing through the inlet 2 cannot directly reach the third separatlon means, but wiIl first have to flow through the inlet channel 18, the first and second fl-uid channels 15a and 15b and further through the at least one cyclone 15.
  • the fin 27 is mounted onto the bottom panel 20 and onto the separating plate 22.
  • the bottom panel 20 is a continuous structure having a length DD' of any value selected between approximately 252 from the depth LL" of the flrst vessel B and approximately 95U from the depth LL,, .
  • the bottom panel 20 is a continuous structure along the depth of the first vessel B.
  • the bottom panel 20 can have a length DD' equal to the depth LL" of the f irst vessel- B.
  • the bottom panel 20 can be a continuous structure extending along at Ieast a part of the first and second fluid channel- 15a and 15b. A further posslbility is for the bottom panel 20 to extend along the length of the fi-rst and second fluid channel 15a and 15b.
  • the bottom panel 20 can be in the shape of a perforated paneI, or said bottom panel 20 can comprise perforations at certain intervals, allowing the liquid to reach the first bottom plate 9.
  • the first and second liquld separation areas 12a and 1,2b are relativeJ-y circular. Accordingly, a first cycJ-one is realized from the inlet 2, along the inlet channel 18 and the first and second fluid channel 15a and 15b. The circular movement of the fluid continulng within the first and second liquid separation areas 72a and lZb, until the fluid enters said at least one cyclone 16.
  • At Ieast one circular wall, 74a or LAb has a length of at l-east 50? from the length of the exterior contour of the first p1ate, 13a or 13b.
  • each of the circular walls 74a and 74b have a Iength of at least 50% from the length of the exterior contour of each of the respective first p1ate, 13a and 13b.
  • the first fluid channe] 15a and the second fluid channel- 15b are made longer, forcing the fl-uid to follow a longer path through said first and second fluid channels 15a and 15b and enhancing the quantity of ⁇ iquid extracted before reaching the first Ilquid separation area l2a and the second liquid separation area 12b respectively.
  • the length of the circular walls 74a and l4b can be made even longer. As shown in figure 3, if we are to draw the axis OO' and OO", the length of the circular walls ⁇ 4a and l1b can be sefected at any point between the OO' axis and the OO" axis.
  • the length of the circu]ar walls 74a and 14b is sefected such that the circufar waIls 1,4a and l- b end in the vicinity of the virtual axis OO'.
  • the fluid flowing through the first and second fluid channel 15a and 15b would be maintained in a downwards and circufar movement for lonqer, forcing such fluid to Iose more Iiquid particles before reaching the inlet of the at least one cyclone 16. Furthermore, the ci-rcular movement wi-II be still- mai-ntained within the first liquid separation area 72a and the second liquid separation area L2b, until the flui-d reaches the inlet of the at least one cyclone 76.
  • the circular walls 1,4a and 14b can have a constant height along their length, such height being defined by the distance between each of the first plate 13a and 13b respectively and the separating plate 22.
  • the height of the cj-rcu.l-ar waIIs is defined by the distance between the bottom panel 20 and the separating plate 22, such that the inl-et channel- 1B wiIl be defined by at l-east the circular walls 74a and t
  • the height of the circular wall l4a and 14b after the inlet channel 18 has ended can be constant and equal to the distance between the bottom panel 20 and the separati-ng plate at the Iocation where the inl-et channel 18 has ended, and therefore, where the bottom panel 20 is at 1ts lowest point.
  • each of the circufar walls ⁇ 4a and 74b can maintain for a minimum distance a height equal to the distance between the bottom panel 20 and the separating plate 22 at the Iowest point of the bottom panel 20 and then such height would preferably decrease gradually in height until reaching the level of each of the first plate 13a and 13b respectively.
  • the height of each of the circular walls 74a and 74b can decrease gradually from the location where the inlet channel 18 has ended and until reaching the leveI of each of the flrst plate 13a and 13b respectively, or untll reaching the location or the vicinity of the -l-ocation where the virtual axis OO' is defined on the first plate 13a and 13b.
  • the circul-ar walls L4a and 14b After reaching the Iocation or the vicinity of the location defined by the virtual axis OO', the circul-ar walls L4a and 14b being cut perpendicularly or approximately perpendicularly onto the first plate 13a or 13b respectively.
  • the device 1 further comprlses a second vessel_ 24 comprisj-ng a second bottom plate 25 and a second lateral waff 26, whereby each the first plate 13a and 13b is mounted onto the second lateral wall 26.
  • the inlet channel 1B is protruding into the second vessel- 24, traversing it through the middl-e.
  • each of the first plate 13a and 13b comprises a plurality of hol-es, each of the holes having a cyclone 76 mounted therein.
  • the number of cyclones 16 is sel-ected according to the capacity of the device 7, such number being any number sefected between six and sixteen. More preferably each of the first plates 13a and 13b comprise nine, twelve or thirteen holes, each hole having a cyclone 16 mounted therein.
  • a filter 71 1s mounted at the outlet of each of said cyclones 16 such that the fluid leaving the cyclone 76 is flowing through the fil-ter l'l before reaching the outfet 5.
  • Each of the cyclones 76 being mounted within said hole of the first plate 13a and 13b, whereby the liquid extracted within the cyclones is drj-pping onto the second bottom plate 25.
  • the second vessel 24 comprises a second liquid extraction means 21.
  • the first liquid extraction means 23 and the second liquid extraction means 21 can be selected from a group comprising: a one way va1ve, a manually or automatically actuated valve, a hose, a tap or a pipe possibly but not necessarily connected to a suction device, or the like.
  • first 1 iquid extraction means 23 can be of the same type as the second liquid extraction means 21 or 1t can be different.
  • each of the first plates 13a and 13b is fixed onto the first l-ateral wall 10 through for example and not limiting thereto: welding, bolting or by using additional flxing mechanisms.
  • each of the first plates 13a and 13b are fixed onto the second lateral wa1126, and said second Iateral wall 26 is further fixed to the first lateral wall- 10 through the same possible techniques as mentioned with respect to fixing said first plates 13a and 13b to the first Iateral waf1.
  • a channel is created between the second lateral waII 26 and the first lateral wal-l 10, whereby the ⁇ iquid extracted from the fluid is dripping, reaching the first bottom plate 9.
  • the fixing means of the first plates 13a and 13b are reafized in such a manner that liquid can drip 1n between the fixing means and reach the first bottom plate 9.
  • the second vessel 24 is fixed to the first bottom plate 9, said fixing being realj-zed directly between the first bottom plate 9 and the second bottom plate 25, or said fixing being done by using for example pillars between the first bottom plate 9 and second bottom plate 25.
  • the functioning of the device 1 according to the present invention is very simple and as fol-lows.
  • the fluid flowing from the compressed gas outlet 3 of the liquid injected compressor 4 is guided through the inlet 2 of the device l, said f l-uid comprising a gas and liquid particles.
  • the flow of f1uid entering through said inlet 2 traverses the inlet channel 18, is then split in two flows by the fin 21, each of the two flows traverses one of the first or second fluid channel 15a or 15b and reaches the first 1 ⁇ quid separation area 72a or the second liquid separation area 72b.
  • the fluj-d is further reaching a second separatlon means comprising at least a cyclone 76 and further a third separation means comprising at least a filter l'7 mounted at the outl-et of saj-d at least one cyclone 16.
  • the downwards movement should be understood as 1n the direction of the gravitational force.
  • the liquid separated from the gas stream is coll-ected on the first bottom plate 9 from where it is later extracted with the help of the first liquid extraction means 23. Because of the shape of the inlet channel 18, the shape of the circular wa1ls 14a and 14b and of the fin 27, a downwards and circul-ar movement is imprlnted to the fluid entering through said inl-et 2.
  • a second vessel 24 is provided, said second vessel 24 comprisi-ng a second bottom plate 25, a second lateral wal-I 26 and the first p1ate13a and 13b.
  • the liquid dripping from the at least one cyclone L6 being col-lected onto said second bottom pJ-ate 25.
  • a second vessel- 24 is provided with a second bottom plate 25, the liquid collected before and within the first liquid separation area L2a and the second liquid separation area 72b is separated from the Iiquid collected with the help of the cyclones mounted onto said first plate 13a and 13b. Consequently, the risk of the col-l-ected Iiquid to re-enter the gas stream is minimized if not eliminated.
  • the downwards and circular movement is maintained for a longer distance by guiding the fluid flowing from the inlet 2 through the first and second fluid channel 15a and 15b, along at least 50e of the length of the exterior contour of said respective first plate, 13a and 13b.
  • a separating plate 22 is provi-ded for separating the second separation means from the third separation means.
  • the device for separating liquid from a gas stream and the method for separating a liquid from a gas stream are not restricted to liquid injected compressors, such devj-ce and method being implementable in a J-iquid injected vacuum pump as welf.
  • the layout of the system is very simil-ar as when the device 1 is used within a liquid injected compressor 4.
  • the devi-ce 101 comprising an inl-et 702 connected to a gas outlet 103 of the vacuum pump 104.
  • the only di-fferences are that the liquid injected vacuum pump 104 is receiving a gas at its inlet 701 from a user's network 706, and that the gas flowing from the outlet 105 of the device 101 is further evacuated to the atmosphere or to an external system 108, as illustrated in figure 7.
  • the different features as defined within the present paper can be used j-n any combination without departing from the scope of the invention.
  • the present invention is by no means Iimited to the embodiments described as an example and shown in the drawings, but such a gas fj-lter l- can be reafized in all kinds of variants, without departing from the scope of the invention -

Abstract

La présente invention concerne un dispositif pour séparer du liquide d'un flux de gaz dans un compresseur à injection de liquide, ledit dispositif comprenant un premier récipient comprenant une première plaque inférieure, une première paroi latérale comprenant une entrée en communication fluidique avec une sortie de gaz comprimé et un couvercle comprenant une sortie, le dispositif comprenant en outre : - un premier moyen de séparation ; - un deuxième moyen de séparation ; - un troisième moyen de séparation ; le dispositif comprenant en outre - un canal d'entrée en communication fluidique avec ladite entrée, ledit canal d'entrée comprenant un panneau supérieur et un panneau inférieur, au moins ledit panneau supérieur créant une pente, ayant le point le plus élevé sur la première paroi latérale et le point le plus bas au niveau de l'extrémité opposée.
PCT/IB2018/051851 2017-04-27 2018-03-20 Dispositif pour séparer du liquide d'un flux de gaz dans un compresseur à injection de liquide et procédé associé WO2018197967A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US16/499,485 US11235269B2 (en) 2017-04-27 2018-03-20 Device for separating liquid from a gas stream within a liquid injected compressor and method thereof
CA3057001A CA3057001C (fr) 2017-04-27 2018-03-20 Dispositif pour separer du liquide d'un flux de gaz dans un compresseur a injection de liquide et procede associe.
RU2019138051A RU2735684C1 (ru) 2017-04-27 2018-03-20 Устройство для сепарации жидкости из газового потока в компрессоре с впрыском жидкости и способ для него
EP18717126.9A EP3615173B1 (fr) 2017-04-27 2018-03-20 Dispositif pour séparer du liquide d'un flux de gaz dans un compresseur à injection de liquide ou une pompe a vide et procédé associé
BR112019022182-4A BR112019022182B1 (pt) 2017-04-27 2018-03-20 Dispositivo e método para separar líquido de um fluxo de gás dentro de um compressor injetado com líquido

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762490830P 2017-04-27 2017-04-27
US62/490,830 2017-04-27
BE2017/5477A BE1025205B1 (nl) 2017-04-27 2017-07-04 Inrichting voor het afscheiden van vloeistof uit een gasstroom in een vloeistof-geïnjecteerde compressor en werkwijze daarvoor
BE2017/5477 2017-07-04

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BE1027227B1 (nl) * 2019-04-25 2020-11-23 Atlas Copco Airpower Nv Inrichting en werkwijze voor het afscheiden van vloeistof uit een gas en compressorinrichting voorzien van zulke inrichting

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US3912469A (en) * 1974-09-11 1975-10-14 Lone Star Steel Co Apparatus for the removal of contaminants from gas streams
US5053126A (en) * 1990-02-28 1991-10-01 Ingersoll-Rand Company Apparatus for gas liquid separation
EP1915940A1 (fr) * 2005-08-19 2008-04-30 Suzhou Kingclean Floorcare Co., Ltd. Dispositif de depoussierage d un appareil de nettoyage de type parallele
CN201441861U (zh) * 2009-02-16 2010-04-28 山富机械厂有限公司 油雾分离机
WO2016172770A1 (fr) * 2015-04-30 2016-11-03 ATLAS COPCO AIRPOWER ,naamloze vennootschap Dispositif permettant la séparation de liquide d'un flux de gaz provenant d'une pompe à vide ou d'un compresseur dans lesquels du liquide est injecté

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CN101862165A (zh) * 2009-04-20 2010-10-20 马吉 吸尘器的多级旋风分离装置
US8945290B2 (en) * 2012-10-15 2015-02-03 Horkos Corp. Multi-cyclone collector
CN105311905A (zh) * 2014-08-05 2016-02-10 上海卓旋化工科技有限公司 一种脉冲袋式过滤器
CN204746643U (zh) * 2015-06-25 2015-11-11 王博 双层旋风分离器旋转并联除尘装置

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US3912469A (en) * 1974-09-11 1975-10-14 Lone Star Steel Co Apparatus for the removal of contaminants from gas streams
US5053126A (en) * 1990-02-28 1991-10-01 Ingersoll-Rand Company Apparatus for gas liquid separation
EP1915940A1 (fr) * 2005-08-19 2008-04-30 Suzhou Kingclean Floorcare Co., Ltd. Dispositif de depoussierage d un appareil de nettoyage de type parallele
CN201441861U (zh) * 2009-02-16 2010-04-28 山富机械厂有限公司 油雾分离机
WO2016172770A1 (fr) * 2015-04-30 2016-11-03 ATLAS COPCO AIRPOWER ,naamloze vennootschap Dispositif permettant la séparation de liquide d'un flux de gaz provenant d'une pompe à vide ou d'un compresseur dans lesquels du liquide est injecté

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