CN105587662A - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
- Publication number
- CN105587662A CN105587662A CN201610115537.1A CN201610115537A CN105587662A CN 105587662 A CN105587662 A CN 105587662A CN 201610115537 A CN201610115537 A CN 201610115537A CN 105587662 A CN105587662 A CN 105587662A
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- China
- Prior art keywords
- oil
- orbiter
- fixed scroll
- oil groove
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007906 compression Methods 0.000 claims description 39
- 230000006835 compression Effects 0.000 claims description 38
- 239000003507 refrigerant Substances 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 83
- 239000007789 gas Substances 0.000 description 33
- 239000010687 lubricating oil Substances 0.000 description 15
- 238000000605 extraction Methods 0.000 description 10
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
-
- 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
-
- 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
- F04C2220/00—Application
- F04C2220/20—Pumps with means for separating and evacuating the gaseous phase
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of compressors, in particular to a scroll compressor. The scroll compressor comprises a fixed scroll and an orbiting scroll, wherein an exhaust buffering cavity which is connected with a compressing cavity is formed in an exhaust region of the fixed scroll; an oil-gas separating device is arranged in the exhaust buffering cavity; at least one first oil groove and at least one second oil groove are formed in an end plate surface, which is attached to the orbiting scroll, of the fixed scroll and are positioned in the periphery of the compressing cavity; the first oil grooves are connected with the bottom of the exhaust buffering cavity through a first channel; and the second oil grooves are connected with a bearing hole of the orbiting scroll through a second channel. By the scroll compressor, the problem that low oil drainage rate cannot be realized while the end plate surface between the orbiting scroll and the fixed scroll is lubricated in the prior art is solved effectively.
Description
Technical field
The present invention relates to Compressor Technology field, relate in particular to a kind of screw compressor.
Background technology
Screw compressor because its efficiency is high, volume is little, quality is light, operate steadily and extensively shouldBe used in the system such as air-conditioning and heat pump. In screw compressor, by orbiter and fixed scrollOn a series of crescent compression chamber of the intermeshing formation of helical-type line, be accompanied by orbiterEccentric operating, crescent compression chamber is constantly moved to center by periphery, now, compression chamberIn refrigerant be pushed to center, its volume constantly reduces and pressure constantly raises, until and centerQuiet dish exhaust outlet communicates, and refrigerant becomes gases at high pressure and is discharged from compression chamber, completes compression process.In compressor operation, generally the oil supply component by being placed in bent axle bottom by lubricating oil from bottomOil sump is fed to the sliding position such as bearing, orbiter by crankshaft center oilhole, makes the compressor canBy operation.
At present, in screw compressor running, orbiter can be subject to from compression chamberDownward separating force, makes it to topple, and causes compression chamber internal leakage, reduces compression efficiency.For suppressing the separation of orbiter and toppling, generally can set up back pressure in space, orbiter backChamber, is high pressure and mesolow gas in back pressure cavity, can make orbiter be subject to back pressure upwards,By orbiter tightly by being pressed on fixed scroll, seal compression chamber. Make to set up in this wayBack pressure generally can be greater than separating force, particularly under the larger operating mode of pressure differential, now movingThe frictional force of fixed scroll end plate face bonded to each other also can be very large, increased the power consumption of compressorAnd wearing and tearing.
For reducing the fretting wear problem of bringing because back pressure is excessive, prior art is at quiet vortexThe end plate face of dish is offered an arc oil groove, and the hydraulic oil in the dead eye of orbiter back is logicalThe oily passage that draws of crossing in Moving plate is introduced in oil groove, so just can increase between the orbiting and fixed scroll end plateLubricated, can suppress the excessive problem of back pressure simultaneously. But, because the hydraulic oil of introducing can be byProgressive enter in compression chamber, it discharges compressor after mixing with refrigerant in compression chamber thereupon, like thisIncrease the oil extraction rate of screw compressor, do not had and have problem lubricated and low oil extraction rate simultaneously concurrently.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention be in prior art between to the orbiting and fixed scroll end plateWhen face is lubricated, can not have the problem of low oil extraction rate concurrently.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of screw compressor, it comprisesFixed scroll and orbiter, be formed for compressing cold between described fixed scroll and orbiterMatchmaker's compression chamber; The exhaust gas region of described fixed scroll is provided with the exhaust being connected with described compression chamberCushion chamber, is provided with gas and oil separating plant in described exhaust cushion chamber; At described fixed scroll and movingThe end plate face place that scroll plate fits and the periphery that is positioned at described compression chamber are at least provided with one firstOil groove, described the first oil groove is connected with the bottom of described exhaust cushion chamber by first passage.
Wherein, the end plate face place fitting at described fixed scroll and orbiter and be positioned at described inThe periphery of compression chamber is at least provided with second oil groove, described the second oil groove by second channel withThe dead eye of described orbiter is connected.
Wherein, described first passage comprises and is opened in respectively first on described fixed scroll radiallyPassage and the first axial passage, described the first oil groove is successively by the first axial passage, the first footpathBe connected with the bottom of described exhaust cushion chamber to passage.
Wherein, described second channel comprises and is opened in respectively second on described orbiter radiallyPassage and the second axial passage, described the second oil groove is successively by the second axial passage, the second footpathBe connected with the dead eye of described orbiter to passage.
Wherein, described the first radial passage and or described the second radial passage in be provided with restrictionPart.
Wherein, described throttle part is throttling rod, and one end of described throttling rod is plug portion, anotherOne end is restriction, and the diameter of described plug portion is greater than the diameter of described restriction, described plugThe outer surface of portion and restriction is equipped with screw thread.
Wherein, described the first oil groove is opened in the end of described fixed scroll or described orbiterOn plate face; Described the second oil groove is opened in the end plate of described fixed scroll or described orbiterOn face.
Wherein, described the first oil groove and described the second oil groove are respectively deep-slotted chip breaker, described the first oilGroove and described the second oil groove ecto-entad are arranged in order the periphery in described compression chamber.
Wherein, described fixed scroll is provided with exhaust outlet, and described fixed scroll is in its exhaust outlet instituteRegion form inner fovea part, on described inner fovea part spiral-lock have with outlet dividing plate, described everySpace between plate and described inner fovea part is restricted to described exhaust cushion chamber.
Wherein, the bottom of described exhaust cushion chamber is provided with annular groove, described annular groove and instituteStating first passage is connected; The middle part of described exhaust cushion chamber is provided with step, described Oil-gas Separation dressInstall and be placed on described step.
Wherein, described gas and oil separating plant is screen pack, convex centered by described screen packHemispheric net surface structure.
Wherein, the outward flange of described screen pack is provided with sheet metal, described sheet metal be provided with forThe fixed part being connected with described exhaust cushion chamber.
Wherein, described gas and oil separating plant is orifice filter, centered by described orifice filter upwardsProtruding hemispheric AND DEWATERING FOR ORIFICE STRUCTURE.
Wherein, this screw compressor also comprises shell and is arranged at respectively the machine in described shellFrame, bent axle and drive unit; A part for described frame is used for supporting described fixed scroll with movingScroll plate, another part is used for supporting described bent axle; Described drive unit drives institute by bent axleState orbiter eccentric rotary.
(3) beneficial effect
Technique scheme of the present invention has following beneficial effect:
1), the invention provides a kind of screw compressor, by the refrigerant of discharging from compression chamber is enteredRow Oil-gas Separation, and isolated lubricating oil is introduced into the joint place of the orbiting and fixed scroll end plate face,In the fretting wear reducing between the orbiting and fixed scroll end plate, also suppress the rising of oil extraction rate,Solve the problem that can not take into account low oil extraction rate in prior art.
2) lubricating oil that, can also simultaneously orbiter be held in hole in the present invention is introduced into sound whirlpoolThe joint place of capstan end plate face, because the lubricating oil being separated and orbiter hold the profit in holeLubricating oil is hydraulic oil, can make orbiter be subject to downward pressure, and back pressure is had to balanceEffect.
3), the present invention is provided with exhaust cushion chamber at fixed scroll exhaust gas region, make from compression chamberFirst the refrigerant ejecting enters exhaust cushion chamber, need to be from the outlet of dividing plate after Oil-gas SeparationJust can enter exhaust space in compressor, therefore also there is to a certain extent the compressor of reduction rowThe function of gas noise.
4), the first oil groove in the present invention and the second oil groove both can be opened in the end of fixed scrollOn plate face, can be opened in again on the end plate face of orbiter, it is simple in structure, flexible design.
Brief description of the drawings
Fig. 1 is the integrally-built cutaway view of the embodiment of the present invention one screw compressor;
Fig. 2 is cutaway view local above the embodiment of the present invention one screw compressor;
Fig. 3 is the split knot of the embodiment of the present invention one fixed scroll and gas and oil separating plant and dividing plateStructure schematic diagram;
Fig. 4 is the top view of the embodiment of the present invention one screw compressor;
Fig. 5 is cutaway view local above the embodiment of the present invention two screw compressors;
Fig. 6 is the structural representation of the embodiment of the present invention two throttle parts;
Fig. 7 is the structural representation of the embodiment of the present invention two gas and oil separating plants.
Wherein, 1: fixed scroll; 2: orbiter; 3: cross slip-ring; 4: mainframe; 5:Bent axle; 6: stator; 7: rotor; 9: slave frame; 10: lower cover; 11: casing; 13: closeSeal; 14: upper cover; 15: air intake duct; A: the first back pressure chamber; B: the second back pressure chamber; 18:Exhaust cushion chamber; 20: gas and oil separating plant; 20a: through hole; 21: dividing plate; 21a: outlet;22: sealing bolt; 40: throttle part; 101: annular groove; 102: the first radial passages;103: the first axial passages; 104: the first oil grooves; 105: the second oil grooves; 106: exhaust outlet;107: step; C: end plate face primary importance; D: the end plate face second place; 201: the second footpathsTo passage; 202: the second axial passages.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following examples are used for illustrating the present invention, but can not be used for limiting the scope of the invention.
In description of the invention, it should be noted that, except as otherwise noted, " multiple " containJustice is two or more; Term " on ", D score, " left side ", " right side ", " interior ", " outward "," front end ", " rear end ", " head ", " afterbody " etc. instruction orientation or position relationship be based onOrientation shown in the drawings or position relationship, be only the present invention for convenience of description and simplified characterization,Instead of instruction or the hint device of indication or element must have specific orientation, with specificallyOrientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second ", " the 3rd " etc. are only for describing object, and notCan be interpreted as instruction or hint relative importance. Term " installation ", " being connected ", " connection " are answeredBeing interpreted broadly, for example, can be to be fixedly connected with, and can be also to removably connect, or oneGround connects; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also canTo be indirectly connected by intermediary. For the ordinary skill in the art, visual toolBody situation is understood above-mentioned term concrete meaning in the present invention.
Embodiment mono-
As Figure 1-4, the screw compressor that the present embodiment provides comprises fixed scroll 1 and moving whirlpoolCapstan 2; Between fixed scroll 1 and orbiter 2, be formed for the compression chamber of compression refrigerant, quietThe exhaust gas region of scroll plate 1 is provided with the exhaust cushion chamber 18 being connected with compression chamber, exhaust cushion chamberIn 18, be provided with gas and oil separating plant 20, first the refrigerant of discharging from compression chamber enters exhaust cushion chamber18, and then carry out Oil-gas Separation through gas and oil separating plant 20, the lubricating oil being separated fallsEnter to the bottom of exhaust cushion chamber 18. Meanwhile, fit at fixed scroll 1 and orbiter 2End plate face place and be positioned at the periphery of described compression chamber (fixed scroll 1 pressed with orbiter 2The horizontal abutment position of periphery, contracting chamber) be at least provided with first oil groove 104, the first oil grooves 104Be connected with the bottom of exhaust cushion chamber 18 by first passage, make isolated lubricating oil drawEnter to the end plate face place of fixed scroll 1 with orbiter 2, reducing between the orbiting and fixed scroll end plateFretting wear time, also suppressed the rising of oil extraction rate, solve in prior art and can not hold concurrentlyTurn round and look at the problem of low oil extraction rate.
And the present embodiment screw compressor fits at fixed scroll 1 and orbiter 2End plate face place and the periphery that is positioned at described compression chamber are at least also provided with second oil groove 105, the secondOil groove 105 is connected with the dead eye of orbiter 2 by second channel, the axle of orbiter 2The lubricating oil holding in hole can be introduced in the second oil groove 105, has equally also reduced fixed scroll 1And the wearing and tearing between orbiter 2 end plate faces. Meanwhile, due to the lubricating oil being separated and bearingLubricating oil in hole is hydraulic oil, can make orbiter 2 be subject to downward pressure, to back pressurePower has balanced action.
In the present embodiment, the concrete form of first passage and second channel does not limit to, visual realitySituation arranges flexibly.
Preferably, first passage comprises the first radial passage being opened in respectively on fixed scroll 1102 and first axial passage 103, the first oil grooves 104 successively by the first axial passage 103,The first radial passage 102 is connected with the bottom of exhaust cushion chamber 18. Accordingly, second channel bagDraw together the second radial passage 201, the second axial passage 202 that are opened in respectively on orbiter 2,The second oil groove 105 is successively by the second axial passage 202, the second radial passage 201 and moving vortexThe dead eye of dish 2 is connected.
What deserves to be explained is, " radial passage " in the present embodiment can be referring to shown in Fig. 2Interconnection, " axial passage " can be referring to the transverse and longitudinal passage shown in Fig. 2.
Further, in the present embodiment, can be provided with close at the peristome of the first radial passage 102Envelope bolt 22 meanwhile, is provided with throttle part 40 in the second radial passage 201.
Particularly, throttle part 40 is throttling rod, and one end of this throttling rod is plug portion, anotherEnd is restriction, and the diameter of plug portion is greater than the diameter of restriction, outside plug portion and restrictionSurface is equipped with screw thread, carries out the effect of reducing pressure by regulating flow for the hydraulic oil in passage.
In the present embodiment for the first oil groove 104 and the second oil groove 105 to offer position same alsoDo not limit to, specifically offering position can arrange flexibly. For example: in the present embodiment, the first oil groove104 and second oil groove 105 be all opened on the end plate face of fixed scroll 1.
In addition, the offering quantity and also can select at random of the first oil groove 104 and the second oil groove 105,, the quantity of the first oil groove 104 and the second oil groove 105 is all not less than 1.
Further, the first oil groove 104 and the second oil groove 105 are respectively deep-slotted chip breaker, the first oilGroove 104 and the second oil groove 105 ecto-entads are arranged in order the periphery in compression chamber. That is to say,The first oil groove 104 is greater than the second oil groove 105 apart from compression chamber center apart from the distance of compression chamber center lineThe distance of line, but need be covered by the end plate face of this orbiter 2. Preferably, the first oil groove104 arc length is greater than the arc length of the second oil groove 105, to increase lubricated area.
Exhaust outlet 106 places at fixed scroll 1 in the present embodiment are provided with exhaust cushion chamber 18. ToolBody ground, fixed scroll 1 is provided with exhaust outlet 106, and fixed scroll 1 is at its exhaust outlet 106 placesRegion form inner fovea part, on inner fovea part spiral-lock have with outlet 21a dividing plate 21, dividing plate 21And the space between inner fovea part is restricted to exhaust cushion chamber 18. In the bottom of exhaust cushion chamber 18Be provided with annular groove 101, annular groove 101 is connected with first passage, by the first radial passage102, the first axial passage 103 is connected with the first oil groove 104. And, at exhaust cushion chamber 18Middle part be provided with step 107, gas and oil separating plant 20 is arranged on step 107.
In the present embodiment, the shape of gas and oil separating plant 20, material are not also limited to, as long as canRealize Oil-gas Separation function. Preferably, in the present embodiment, gas and oil separating plant 20 is filtrationNet, convex hemispheric net surface structure centered by screen pack, is beneficial to the whereabouts of lubricating oil,There is good separating effect. Meanwhile, be provided with sheet metal at the outward flange of screen pack, sheet metalBe provided with for being fixed on the fixed part in exhaust cushion chamber 18. Sheet metal can adopt the side of flangingFormula is pressed on the outward flange of screen pack. And, on sheet metal, be provided with the fixed part of construction bolt,Can be bolted on the step 107 at exhaust cushion chamber 18 middle parts.
Certainly outside the screw compressor that, the present embodiment provides also comprises shell and is arranged at respectivelyFrame, bent axle 5 and drive unit in shell; A part for frame is used for supporting fixed scroll 1With orbiter 2, another part is used for supporting bent axle 5; Drive unit drives moving by bent axle 5Scroll plate 2 is carried out eccentric rotary.
Particularly, shell comprises 10 groups of casing 11, upper cover 14, lower covers forming confined spaceBecome; Frame comprise top for the mainframe 4 of spacing scroll plate and bottom for spacing bent axle 5Slave frame 9; Drive unit comprises stator, rotor, and rotor is sheathed on bent axle 5. And,Between orbiter 2 and mainframe 4, be also provided with cross slip-ring 3. Meanwhile, at orbiter 2The back side, form the first back pressure chamber A and the second back pressure chamber B, and sealed circle 13 seals. TheOne back pressure chamber A is gases at high pressure, and the second back pressure chamber B is middle pressure or low pressure. At first, secondUnder the back pressure acting in conjunction of back pressure chamber, by orbiter 2 by being pressed on fixed scroll 1, fromAnd compression chamber is sealed.
The course of work of this enforcement screw compressor is:
Refrigerant is drawn into be made up of fixed scroll 1 and orbiter 2 multiple from air intake duct 15In crescent compression chamber, compress, from fixed scroll 1 center after refrigerant in compression chamber is compressedExhaust outlet 106 is discharged, is introduced in exhaust cushion chamber 18, and towards the outlet of dividing plate 2121a flows, and in process gas and oil separating plant 20, the lubricating oil in refrigerant is by separatedOut, and along the cambered surface of gas and oil separating plant 20 flow in annular groove 101 (after separationRefrigerant 2 can be discharged to the exhaust space of screw compressor from dividing plate outlet 21a), then through radiallyThe first radial passage 102 of offering and the first axial passage 103 of axially offering enter the first oilIn groove 104, the first oil groove 104 be opened in fixed scroll 1 end plate face primary importance C (asShown in Fig. 2), the first oil groove 104 is looped around scrollwork periphery, and with compression chamber and orbiterAll there is certain seal distance 2 outer, and is lived by orbiter 2 end plate covers.
Meanwhile, the process restriction under differential pressure action of the hydraulic oil in orbiter 2 dead eyesAfter the throttling of part 40, enter in the second oil groove 105. The second oil groove 105 is opened in fixed scroll 1End plate face second place D (as shown in Figure 2).
Visible, in the operation process of orbiter 2, the first oil groove 104 and the second oil groove 105Lubricating oil all can be lubricated the sticking part of the orbiting and fixed scroll end plate face, reduced hereinFretting wear. Meanwhile, from discharging out lubricated of the lubricating oil separated and Moving plate dead eyeOil is hydraulic oil, when on the end plate face that acts on orbiter 2, orbiter 2 is subject toTo a downward pressure, back pressure is had to balanced action, also reduce orbiter 2Pressing force.
And the refrigerant after Oil-gas Separation finally enters compressor through the outlet 21a of dividing plate 21Interior exhaust space, because having the structure of exhaust cushion chamber 18, it has also reduced pressure to a certain extentThe exhaust noise of contracting machine.
Embodiment bis-
As shown in Fig. 5-7, the technology contents that the present embodiment two is identical with embodiment mono-does not repeat to retouchState, the disclosed content of embodiment mono-also belongs to the disclosed content of the present embodiment two, the present embodiment twoWith embodiment mono-difference be following some:
In the present embodiment, gas and oil separating plant 20 is orifice filter, convex centered by orifice filterHemispheric AND DEWATERING FOR ORIFICE STRUCTURE. On this orifice filter, there are multiple through hole 20a, can be by sheet metalDirectly be stamped to form. Certainly, gas and oil separating plant 20 also can have Oil-gas Separation function by otherMaterial form.
In the present embodiment, the first oil groove 104, the second oil groove 105 are opened in respectively orbiter 2End plate face on, equally also have and take into account the lubricated effect with reducing oil extraction rate. In addition also can,With the end plate face that is opened in fixed scroll 1 by the first oil groove 104, the second oil groove 105Upper, another is opened on the end plate face of orbiter 2.
In the present embodiment, in the first radial passage 102, be provided with throttle part 40, can be to separatingHydraulic oil (lubricating oil separating from refrigerant) out first carries out flowing to after reducing pressure by regulating flow againIn one oil groove 104, prevent from causing because oil pressure is excessive the hypodynamic situation of back pressure. Preferably,Throttle part 40 is throttling rod, and throttling rod comprises plug portion and restriction, and the diameter of plug portion is largeIn the diameter of restriction, the outer surface of plug portion and restriction is equipped with screw thread.
To sum up, technique scheme of the present invention has following beneficial effect:
1), the invention provides a kind of screw compressor, by the refrigerant of discharging from compression chamber is enteredRow Oil-gas Separation, and isolated lubricating oil is introduced into the joint place of the orbiting and fixed scroll end plate face,In the fretting wear reducing between the orbiting and fixed scroll end plate, also suppress the rising of oil extraction rate,Solve the problem that can not take into account low oil extraction rate in prior art.
2) lubricating oil that, can also simultaneously orbiter be held in hole in the present invention is introduced into sound whirlpoolThe joint place of capstan end plate face, because the lubricating oil being separated and orbiter hold the profit in holeLubricating oil is hydraulic oil, can make orbiter be subject to downward pressure, and back pressure is had to balanceEffect.
3), the present invention is provided with exhaust cushion chamber at fixed scroll exhaust gas region, make from compression chamberFirst the refrigerant ejecting enters exhaust cushion chamber, need to be from the outlet of dividing plate after Oil-gas SeparationJust can enter exhaust space in compressor, therefore also there is to a certain extent the compressor of reduction rowThe function of gas noise.
4), the first oil groove in the present invention and the second oil groove both can be opened in the end of fixed scrollOn plate face, can be opened in again on the end plate face of orbiter, it is simple in structure, flexible design.
Embodiments of the invention provide for example with for the purpose of describing, and are not nothing leftThat leak or limit the invention to disclosed form. Many modifications and variations are for this areaThose of ordinary skill is apparent. Selecting and describing embodiment is for better explanationPrinciple of the present invention and practical application, and make those of ordinary skill in the art can understand thisThereby invention design is suitable for the various embodiment with various amendments of special-purpose.
Claims (14)
1. a screw compressor, is characterized in that, comprises fixed scroll and orbiter, instituteState the compression chamber that is formed for compression refrigerant between fixed scroll and orbiter; Described quiet vortexThe exhaust gas region of dish is provided with the exhaust cushion chamber being connected with described compression chamber, described exhaust cushion chamberInside be provided with gas and oil separating plant;
The end plate face place fitting at described fixed scroll and orbiter and be positioned at described compression chamberPeriphery be at least provided with first oil groove, described the first oil groove is by first passage and described rowThe bottom of gas cushion chamber is connected.
2. screw compressor according to claim 1, is characterized in that, in described quiet whirlpoolThe end plate face place that capstan and orbiter fit and the periphery that is positioned at described compression chamber are at least provided withSecond oil groove, described the second oil groove is by the dead eye of second channel and described orbiterBe connected.
3. screw compressor according to claim 2, is characterized in that, described first is logicalRoad comprises the first radial passage and the first axial passage that are opened in respectively on described fixed scroll,Described the first oil groove is successively by the first axial passage, the first radial passage and described exhaust bufferingThe bottom in chamber is connected.
4. screw compressor according to claim 3, is characterized in that, described second is logicalRoad comprises the second radial passage and the second axial passage that are opened in respectively on described orbiter,Described the second oil groove is successively by the second axial passage, the second radial passage and described orbiterDead eye be connected.
5. screw compressor according to claim 4, is characterized in that, described firstRadial passage and or described the second radial passage in be provided with throttle part.
6. screw compressor according to claim 5, is characterized in that, described restrictionPart is throttling rod, and one end of described throttling rod is plug portion, and the other end is restriction, described stifledThe diameter of head is greater than the diameter of described restriction, and the outer surface of described plug portion and restriction is equalBe provided with screw thread.
7. screw compressor according to claim 2, is characterized in that, described the first oilGroove is opened on the end plate face of described fixed scroll or described orbiter; Described the second oil grooveBe opened on the end plate face of described fixed scroll or described orbiter.
8. screw compressor according to claim 7, is characterized in that, described the first oilGroove and described the second oil groove are respectively deep-slotted chip breaker, described the first oil groove and described the second oil groove by outsideInwardly be arranged in order the periphery in described compression chamber.
9. screw compressor according to claim 1, is characterized in that, described quiet vortexDish is provided with exhaust outlet, and described fixed scroll forms inner fovea part in the region at its exhaust outlet place,On described inner fovea part, spiral-lock has the dividing plate with outlet, between described dividing plate and described inner fovea partSpace is restricted to described exhaust cushion chamber.
10. screw compressor according to claim 1, is characterized in that, described exhaustThe bottom of cushion chamber is provided with annular groove, and described annular groove is connected with described first passage; InstituteThe middle part of stating exhaust cushion chamber is provided with step, and described gas and oil separating plant is arranged on described step.
11. screw compressors according to claim 1, is characterized in that, described oil gasSeparator is screen pack, convex hemispheric net surface structure centered by described screen pack.
12. screw compressors according to claim 11, is characterized in that, described filtrationThe outward flange of net is provided with sheet metal, and described sheet metal is provided with for connecting with described exhaust cushion chamberThe fixed part connecing.
13. screw compressors according to claim 1, is characterized in that, described oil gasSeparator is orifice filter, and hemispheric orifice plate convex centered by described orifice filter is tiedStructure.
14. screw compressors according to claim 1, is characterized in that, outside also comprisingShell and be arranged at respectively frame, bent axle and the drive unit in described shell; Described frameA part is used for supporting described fixed scroll and orbiter, and another part is used for supporting described songAxle; Described drive unit drives described orbiter eccentric rotary by bent axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115537.1A CN105587662B (en) | 2016-03-01 | 2016-03-01 | A kind of screw compressor |
Applications Claiming Priority (1)
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352576A (en) * | 2016-08-22 | 2017-01-25 | 广东美的暖通设备有限公司 | Cooling system |
| CN107061269A (en) * | 2017-06-12 | 2017-08-18 | 美的集团股份有限公司 | Screw compressor |
| CN107806409A (en) * | 2017-10-25 | 2018-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
| WO2018130134A1 (en) * | 2017-01-10 | 2018-07-19 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
| CN108350880A (en) * | 2016-09-14 | 2018-07-31 | 日立江森自控空调有限公司 | Screw compressor |
| CN110118182A (en) * | 2018-02-06 | 2019-08-13 | 博泽沃尔兹堡汽车零部件有限公司 | Electronic coolant compressor |
| WO2020093924A1 (en) * | 2018-11-06 | 2020-05-14 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
| CN111237189A (en) * | 2018-11-29 | 2020-06-05 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor with seal-oil trap structure |
| CN112049799A (en) * | 2020-09-14 | 2020-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust silencing structure, scroll compressor and refrigeration equipment |
| CN113330218A (en) * | 2019-02-28 | 2021-08-31 | 大金工业株式会社 | Scroll compressor having a discharge port |
| CN113775523A (en) * | 2021-10-14 | 2021-12-10 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment with same |
| CN114033694A (en) * | 2021-12-15 | 2022-02-11 | 广东美的环境科技有限公司 | Throttling device, scroll compressor and temperature control equipment |
| CN114183348A (en) * | 2021-12-17 | 2022-03-15 | 珠海格力电器股份有限公司 | Quiet dish subassembly reaches scroll compressor including it |
| CN114412777A (en) * | 2021-12-24 | 2022-04-29 | 珠海格力电器股份有限公司 | Movable scroll, scroll compressor and air conditioner |
| CN115163493A (en) * | 2022-08-17 | 2022-10-11 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352576A (en) * | 2016-08-22 | 2017-01-25 | 广东美的暖通设备有限公司 | Cooling system |
| CN108350880A (en) * | 2016-09-14 | 2018-07-31 | 日立江森自控空调有限公司 | Screw compressor |
| CN108350880B (en) * | 2016-09-14 | 2019-04-19 | 日立江森自控空调有限公司 | Screw compressor |
| US10247188B2 (en) | 2016-09-14 | 2019-04-02 | Hitachi-Johnson Controls Air Conditioning, Inc. | Scroll compressor |
| WO2018130134A1 (en) * | 2017-01-10 | 2018-07-19 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
| CN107061269A (en) * | 2017-06-12 | 2017-08-18 | 美的集团股份有限公司 | Screw compressor |
| CN107806409B (en) * | 2017-10-25 | 2024-06-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
| CN107806409A (en) * | 2017-10-25 | 2018-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
| CN110118182A (en) * | 2018-02-06 | 2019-08-13 | 博泽沃尔兹堡汽车零部件有限公司 | Electronic coolant compressor |
| WO2020093924A1 (en) * | 2018-11-06 | 2020-05-14 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
| CN111237189A (en) * | 2018-11-29 | 2020-06-05 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor with seal-oil trap structure |
| CN113330218A (en) * | 2019-02-28 | 2021-08-31 | 大金工业株式会社 | Scroll compressor having a discharge port |
| CN113330218B (en) * | 2019-02-28 | 2021-11-19 | 大金工业株式会社 | Scroll compressor having a discharge port |
| CN112049799A (en) * | 2020-09-14 | 2020-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust silencing structure, scroll compressor and refrigeration equipment |
| CN113775523A (en) * | 2021-10-14 | 2021-12-10 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment with same |
| CN114033694A (en) * | 2021-12-15 | 2022-02-11 | 广东美的环境科技有限公司 | Throttling device, scroll compressor and temperature control equipment |
| CN114183348A (en) * | 2021-12-17 | 2022-03-15 | 珠海格力电器股份有限公司 | Quiet dish subassembly reaches scroll compressor including it |
| CN114183348B (en) * | 2021-12-17 | 2022-08-26 | 珠海格力电器股份有限公司 | Quiet dish subassembly reaches scroll compressor including it |
| CN114412777A (en) * | 2021-12-24 | 2022-04-29 | 珠海格力电器股份有限公司 | Movable scroll, scroll compressor and air conditioner |
| CN115163493A (en) * | 2022-08-17 | 2022-10-11 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment |
| WO2024037245A1 (en) * | 2022-08-17 | 2024-02-22 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration apparatus |
| CN115163493B (en) * | 2022-08-17 | 2024-06-25 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment |
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Effective date of registration: 20190109 Address after: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Patentee after: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. Address before: 528311 Penglai Road industrial town, Beijiao Town, Shunde District, Foshan, Guangdong Co-patentee before: MIDEA GROUP Co.,Ltd. Patentee before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20191125 Address after: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Co-patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Patentee after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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