CN104534751A - Oil separator and air-conditioning device - Google Patents

Oil separator and air-conditioning device Download PDF

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Publication number
CN104534751A
CN104534751A CN201510055992.2A CN201510055992A CN104534751A CN 104534751 A CN104534751 A CN 104534751A CN 201510055992 A CN201510055992 A CN 201510055992A CN 104534751 A CN104534751 A CN 104534751A
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CN
China
Prior art keywords
oil
air inlet
inlet pipe
cylindrical shell
oil eliminator
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Granted
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CN201510055992.2A
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Chinese (zh)
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CN104534751B (en
Inventor
杨旭峰
杨锦源
赵艳
陈红
胡东兵
万仁杰
熊炼
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201510055992.2A priority Critical patent/CN104534751B/en
Publication of CN104534751A publication Critical patent/CN104534751A/en
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Publication of CN104534751B publication Critical patent/CN104534751B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

The invention discloses an oil separator and an air-conditioning device, and relates to the technical field of electric appliances. The oil separator comprises a cylinder body (1) and a guide component (2), wherein the guide component (2) is positioned inside the cylinder body (1); a gas outlet (11) and a plurality of gas inlets (12) which are formed from top to bottom are formed in the cylinder body (1). By adopting the embodiment of the invention, the oil-gas separation efficiency is improved, and the noise, the vortex intensity and the pressure drop loss are reduced.

Description

Oil eliminator and aircondition
Technical field
The present invention relates to technical field of electric appliances, especially a kind of oil eliminator and aircondition.
Background technology
Oil eliminator external in screw type refrigerating compressor group mainly adopts vertical oil separator and Horizontal oil separator.Compared with Horizontal oil separator, vertical oil separator takes up space little, compact conformation and to import and export pressure drop little.
The operation principle of vertical oil separator by the constraint of bucket wall to inlet air flow, air-flow is moved in a circle, gas mixture is impelled to produce centrifugal force in the process rotated, oil droplet larger for density is got rid of to urceolus, to reach the effect of gas-liquid separation, oil droplets a large amount of subsequently forms stable oil film on wall, flows into oil collector sump tank eventually through Action of Gravity Field along inner tube wall.
Often adopt spiral deflector to strengthen the rotary motion of gas mixture in common vertical oil separator structure.Although such a construction increases the removal efficiency to Large stone oil droplet (particle diameter > 2.5 microns), but because existing vertical oil separator only has an air inlet pipe, on the one hand, when the high-velocity fluid just entered in cylinder flows in deflector, will ceaselessly break-in, to the rupture of oil film that can cause on wall of washing away of wall, thus form the less oil droplet particulate of particle diameter, reduce separative efficiency; On the other hand, sharply reduce through postrotational gas velocity, separative efficiency also can be caused to decline.
Summary of the invention
An object of the embodiment of the present invention is the separative efficiency improving oil eliminator.
According to an aspect of the present invention, provide a kind of oil eliminator, comprise cylindrical shell and guiding subassembly, described guiding subassembly is positioned at the inside of described cylindrical shell; Described cylindrical shell is provided with gas outlet, and the multiple air inlets arranged from top to bottom.
In one embodiment, described oil eliminator also comprises: multiple air inlet pipe, and described multiple air inlet pipe stretches into the inside of described cylindrical shell by described multiple air inlet.
In one embodiment, described oil eliminator also comprises: escape pipe, and described escape pipe stretches into the inside of described cylindrical shell by described gas outlet.
In one embodiment, described guiding subassembly is spiral stream guidance assembly, described spiral stream guidance assembly meets 1.5 times of pitch≤H≤2 times pitch in the height H of vertical direction, and two adjacent air inlet pipe meet 0.5 times of pitch≤h≤1 times pitch at the distance h of vertical direction.
In one embodiment, described guiding subassembly is spiral stream guidance assembly, described spiral stream guidance assembly meets 2 times of pitch < H≤4 times pitch in the height H of vertical direction, and two adjacent air inlet pipe are in distance h > 1 times of pitch of vertical direction.
In one embodiment, the center line that the center line of the enterprising tracheae in two adjacent air inlet pipe is rotated clockwise to lower inlet duct has an angle [alpha]=(1-h/ pitch) × 360 degree.
In one embodiment, described oil eliminator also comprises: dividing plate, and described dividing plate is vertically arranged on the incoming position place of the most top air inlet pipe.
In one embodiment, the quantity of described air inlet pipe is 2-4.
In one embodiment, described air inlet pipe and horizontal line have an angle theta.
In one embodiment, 0 degree≤θ≤45 degree.
In one embodiment, ratio a≤1 of the enterprising tracheae in two adjacent air inlet pipe and the cross-sectional area of lower inlet duct.
In one embodiment, 1/4≤a≤1.
In one embodiment, a=1/2.
In one embodiment, described oil eliminator also comprises: baffle plate, and described baffle plate is between the roof and described guiding subassembly of described cylindrical shell, and described guiding subassembly is fixedly connected with described baffle plate.
In one embodiment, described oil eliminator also comprises: keep off oily assembly and filter assemblies, and described gear oil assembly and filter assemblies are successively set on the inside of the described cylindrical shell below described guiding subassembly.
In one embodiment, the oily assembly of described gear comprises the top panel being provided with through hole, has gap between described top panel and described cylinder lateral wall.
In one embodiment, the oily assembly of described gear also comprises oil baffle, and described oil baffle is arranged on below described top panel, has gap between described oil baffle and described cylinder lateral wall.
In one embodiment, described oil baffle is umbrella shape oil baffle.
In one embodiment, described filter assemblies comprises net-filter assembly and lower panel, and described lower panel is arranged on below the oily assembly of described gear, and described lower panel is fixedly connected with described net-filter assembly.
In one embodiment, described air inlet pipe is pipe, rectangular tube or triangle tube.
In one embodiment, described air inlet pipe has angular cut.
According to a further aspect in the invention, provide a kind of aircondition, comprise the oil eliminator described in above-mentioned any embodiment.
In one embodiment, described aircondition also comprises compressor and condenser, and described oil eliminator is arranged between described compressor and described condenser.
The embodiment of the present invention arranges multiple air inlet from top to bottom on the cylindrical shell of gs-oil separator, the High Rotation Speed in guiding subassembly of the gas mixture after cylindrical shell is entered from enterprising gas port, with by the oil droplet centrifugation in gas mixture, gas mixture rotates and is decelerated to lower air inlet afterwards, runs into the gas mixture entering cylindrical shell from lower inlet.On the one hand, can again be accelerated, to improve the separative efficiency of the oil droplet of this gas mixture enter the gas mixture in cylindrical shell from enterprising gas port after; On the other hand, the speed entering the gas mixture in cylindrical shell from lower air inlet can reduce, and reduces gas mixture the washing away cylinder lateral wall oil film entered from lower air inlet in cylindrical shell, thus avoids breaking of oil film, improve the separative efficiency of oil droplet.In addition, owing to entering the reduction of the speed of the gas mixture in cylindrical shell from lower air inlet, reduce it to impact noise that guiding subassembly produces and rotate the vortex energy that break-in produces, thus reduce droop loss and reduce the noise that vortex produces the back-mixing effect of carrying secretly of olesome and vortex.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1A, Figure 1B and Fig. 1 C is respectively the schematic front view of oil eliminator of the present invention, right view and left view;
Fig. 2 is the enlarged diagram of the section components of oil eliminator of the present invention;
Fig. 3 is the schematic top view of oil eliminator of the present invention;
Fig. 4 is the schematic diagram of the example of air inlet pipe in oil eliminator embodiment of the present invention;
Fig. 5 is the contrast schematic diagram of the flow dead formed in the present invention and prior art.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing description.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Figure 1A, Figure 1B and Fig. 1 C is respectively the schematic front view of oil eliminator of the present invention, right view and left view.As shown in figures ia-c, the oil eliminator that this embodiment provides comprises cylindrical shell 1 and guiding subassembly 2, and guiding subassembly 2 is positioned at the inside of cylindrical shell 1; Cylindrical shell 1 is provided with gas outlet 11, and the multiple air inlets 12 arranged from top to bottom, and multiple air inlet 12 lays respectively on different horizontal planes, is namely distributed on different vertical height.Gas mixture can enter in cylindrical shell by multiple air inlet, external by gas outlet expelling tube after rotating centrifugal under the guide functions of guiding subassembly.
Wherein, gas outlet 11 can be arranged on the roof of cylindrical shell 1, and air inlet 12 can be arranged on the sidewall of cylindrical shell 1, but the present invention is not limited to this.
The quantity of air inlet can be 2,3 or 4.When being 2 with air inlet below, the operation principle of oil eliminator is described.It is pointed out that for the ease of understanding, in describing hereafter, 2 air inlets are called enterprising gas port and lower air inlet, the gas mixture gas mixture entered from enterprising gas port is called overdraught, entering from lower air inlet is called downstream.
Overdraught enters along guiding subassembly High Rotation Speed after cylindrical shell, and the oil droplet in overdraught is thrown to the sidewall of cylindrical shell under the influence of centrifugal force.Along with the rotation of overdraught, its rotary speed can decline gradually, and separative efficiency also can weaken gradually.When overdraught rotates to lower air inlet, can encounter the downstream entered from lower air inlet, overdraught can be accelerated again by downstream, thus promotes the separative efficiency of the oil droplet in overdraught.
Afterwards, the overdraught after centrifugal and downstream can be flowed out by gas outlet.Due to the collision with overdraught, the speed of downstream can decline, thus reduce the noise that downstream impacts guiding subassembly generation, also the vortex energy that the rotation break-in reducing the speed and downstream that downstream washes away cylinder inboard wall produces, thus reduce droop loss, and reduce the noise that vortex produces the back-mixing effect of carrying secretly of olesome and vortex.
In guiding subassembly region, the too high air-flow of flow velocity directly can wash away the oil film on cylinder inboard wall, causes the second-time breakage of oil film, thus reduces separative efficiency.But the too low meeting of flow velocity directly weakens the separating effect of centrifugal force to oil droplet.The present embodiment arranges multiple air inlet from top to bottom on the cylindrical shell of gs-oil separator, the High Rotation Speed in guiding subassembly of the gas mixture after cylindrical shell is entered from enterprising gas port, with by the oil droplet centrifugation in gas mixture, gas mixture rotates and is decelerated to lower air inlet afterwards, runs into the gas mixture entering cylindrical shell from lower inlet.On the one hand, can again be accelerated, to improve the separative efficiency of the oil droplet of this gas mixture enter the gas mixture in cylindrical shell from enterprising gas port after; On the other hand, the speed entering the gas mixture in cylindrical shell from lower air inlet can reduce, and reduces gas mixture the washing away cylinder lateral wall oil film entered from lower air inlet in cylindrical shell, thus avoids breaking of oil film, improve the separative efficiency of oil droplet.In addition, owing to entering the reduction of the speed of the gas mixture in cylindrical shell from lower air inlet, reduce it to impact noise that guiding subassembly produces and rotate the vortex energy that break-in produces, thus reduce droop loss and reduce the noise that vortex produces the back-mixing effect of carrying secretly of olesome and vortex.
In another embodiment of oil eliminator of the present invention, see Fig. 1, can also comprise: multiple air inlet pipe 3, multiple air inlet pipe 3 stretches into the inside of cylindrical shell 1 by multiple air inlet 12.Gas mixture can enter the inside of cylindrical shell 1 by multiple air inlet pipe 3.
In another embodiment of oil eliminator of the present invention, see Fig. 1, can also comprise: escape pipe 4, escape pipe 4 stretches into the inside of cylindrical shell 1 by gas outlet 11.Exemplarily, escape pipe 4 such as vertically or also can stretch into the inside of cylindrical shell 1 with vertical direction by gas outlet 11 with having certain angle of inclination, and guiding subassembly 2 can be centered around escape pipe 4 surrounding and arrange.Gas mixture can be external by escape pipe 4 expelling tube after rotating centrifugal under the guide functions of guiding subassembly 2.
Cylindrical shell in the various embodiments described above can include but not limited to vertical cylinder, and guiding subassembly can include but not limited to spiral stream guidance assembly.In one embodiment, guiding subassembly can be such as spiral deflector or spiral stream guidance pipe etc.Spiral stream guidance assembly makes air-flow can rotate along spiral path, and water conservancy diversion better effects if improves the separative efficiency of oil droplet.
In addition, the fixed form of guiding subassembly has multiple: under a kind of mode, and guiding subassembly can directly be fixedly connected with the roof of cylindrical shell; Under another kind of mode, see Fig. 1, oil eliminator can also comprise between cylindrical shell 1 roof and guiding subassembly 2 and periphery is connected to the baffle plate 5 of cylindrical shell 1 sidewall, and guiding subassembly 2 can be fixedly connected with baffle plate 5, to make assembling more stable.
When practical application, the quantity of air inlet pipe and adjacent air inlet pipe can set according to the height of guiding subassembly in the distance of vertical direction, will make an explanation respectively below.It should be noted that, " the adjacent air inlet pipe " hereinafter mentioned refers to and is distributed in air inlet pipe adjacent on different vertical height from the top down, also, the vertical height between these two air inlet pipe does not have other air inlet pipe.
Fig. 2 is the enlarged diagram of the section components of oil eliminator shown in Figure 1A-Fig. 1 C.Be spiral stream guidance assembly for guiding subassembly 2, as shown in Figure 2, the axial distance between the some A point that two adjacent teeth are corresponding and B point is 1 pitch.Suppose that guiding subassembly 2 is H at the height of vertical direction, two adjacent air inlet pipe 3 are h in the distance of vertical direction, such as, and can using the distance of the vertical direction between the center line of adjacent two air inlet pipe and cylindrical shell intersection point as h.Wherein, H preferably meets 2 times of pitch≤H≤4 times pitch.Further, the consideration of integrated cost and droop loss, H preferably meets 2 times of pitch≤H≤3 times pitch.
When 1.5 times of pitch≤H≤2 times pitch, the scope of h meets 0.5 times of pitch≤h≤1 times pitch, and in this case, the quantity of air inlet pipe can select 2.
When 2 times of pitch < H≤4 times pitch, the scope of h meets h > 1 times of pitch, and in this case, the quantity of air inlet pipe can select 2,3 or 4, preferably selects 2.
Differing heights according to guiding subassembly sets the distance of adjacent air inlet pipe at vertical direction, thus makes the separative efficiency of the oil droplet of the gas mixture entered from different air inlet pipe higher.
Fig. 3 is the schematic top view of oil eliminator of the present invention.As shown in Figure 3, the center line of the relatively top air inlet pipe 3 in two adjacent air inlet pipe 3 center line of air inlet pipe 3 that (in figure the direction of arrow) rotates to relatively on the lower clockwise has an angle [alpha]=(1-h/ pitch) × 360 degree.In the following description, by the angle of α referred to as adjacent air inlet pipe center line.
Such as, when h=1 times of pitch, α=0 degree, namely relatively top air inlet pipe rotates a circle than air inlet pipe relatively on the lower more.Again such as, when h=0.5 times of pitch, α=180 degree, namely relatively top air inlet pipe half revolution more than air inlet pipe relatively on the lower.Preferably, 0 degree≤α≤180 degree; More preferably, 0 degree≤α≤90 degree.By the distance of adjacent two air inlet pipe at vertical direction is associated with the angle of adjacent air inlet pipe center line, can when adjacent two air inlet pipe be determined in the distance of vertical direction, by adjusting the angle of adjacent air inlet pipe center line, improve the separative efficiency of oil eliminator.In fact, if 180 degree≤α < 360 degree, then two adjacent air inlet pipe are too little in the distance of vertical direction, the flow field at the incoming position place of air inlet pipe can be caused disorderly, be unfavorable for the lifting of the separative efficiency of oil droplet.
In another embodiment of oil eliminator of the present invention, see Fig. 2, air inlet pipe 3 and horizontal line can have an angle theta, with the inside making gas mixture to be entered cylindrical shell 1 in the horizontal direction or downwards by air inlet pipe 3.Preferably, the scope of θ meets 0 degree≤θ≤45 degree, and such as θ can be 15 degree, 30 degree, 35 degree.Air inlet pipe 3 downwards small angle inclination time, gas mixture can be made to enter inner barrel downwards, to reduce the Entraining Effect that air-flow produces upwards whirlpool.In the present embodiment, air inlet pipe has downward-sloping trend relative to horizontal line, can reduce the Entraining Effect that air-flow produces upwards whirlpool, avoids the possibility amassing oil at cylindrical shell roof.
Further, in the various embodiments described above, ratio a≤1 of the enterprising tracheae in two adjacent air inlet pipe 3 and the cross-sectional area of lower inlet duct, namely the cross-sectional area of air inlet pipe presents the trend increased gradually substantially from top to bottom.In one embodiment, the scope of a is: 1/4≤a≤1, and such as a can be 1/3,1/2.Preferably, a=1/2.
Be 2 citings with the quantity of air inlet pipe, namely a≤1 represents that the cross-sectional area of enterprising tracheae is less than or equal to the cross-sectional area of lower inlet duct.The flow that the flow entering the gas mixture (overdraught) of inner barrel from enterprising tracheae can be made to be less than the gas mixture (downstream) entering inner barrel from lower inlet duct is so set, thus when downstream and overdraught are collided, downstream can be impelled further to the acceleration of low speed overdraught, to improve separative efficiency further.
It should be noted that, when air inlet pipe is multiple, the total sectional area of multiple air inlet pipe can decide according to the operating mode of compressor, to meet the requirement of different working conditions of compressor.
Further, in another embodiment of oil eliminator of the present invention, see Fig. 1, oil eliminator can also comprise gear oily assembly 6 and filter assemblies 7, keeps off the inside that oily assembly 6 and filter assemblies 7 are from top to bottom successively set on the cylindrical shell 1 below guiding subassembly 2.As an embodiment, escape pipe 4 can run through the oily assembly 6 of gear and filter assemblies 7 stretching in filter assemblies 7.Wherein, keep off oily assembly 6 and gas mixture can be made to pass through, and the part oil droplet in gas mixture can be blocked.Gas mixture is by after the oily assembly 6 of gear, and assembly 7 flows out from escape pipe 4 after filtering further more after filtration.The present embodiment is by arranging the oily assembly of gear and filter assemblies can promote the separative efficiency of oil eliminator further.
Gear oil assembly in above-described embodiment can have different version, citing is illustrated respectively below.
Under a kind of version of the oily assembly of gear, see Figure 1A and Fig. 3, keep off oily assembly 6 and can comprise the top panel 61 being provided with through hole 611, top panel 61 is arranged on the below of guiding subassembly 2.Alternatively, top panel 61 can be fixedly connected with guiding subassembly 2.Or top panel 61 can be run through by escape pipe 4 and be fixedly connected with escape pipe 4.Gas mixture and oil droplet can enter filter assemblies 7 below by through hole 611, and assembly 7 is flowed out by escape pipe 4 after filtering further after filtration.
Between top panel 61 and cylindrical shell 1 sidewall, there is gap, bottom oil sump (not shown) can be flowed into through this gap under gravity to make the oil droplet that cylinder lateral wall adheres to.
The shape and the quantity that it should be noted that through hole shown in Fig. 3 are all exemplary, are not limited to scope of the present invention.Those skilled in the art can set the shape of through holes on top panel and quantity according to actual conditions.
Under the another kind of version of the oily assembly of gear, see Figure 1A, keep off oily assembly 6 except comprising top panel 61, can also comprise and being arranged on below top panel 61, and the oil baffle 62 be fixedly connected with top panel 61.
Should understand, although the oil baffle 62 shown in Fig. 1 is umbrella shape oil baffle, this is as just the preferred embodiments of the present invention.In fact, oil baffle 62 also can be the oil baffle of other shapes, as long as can play the effect of gear oil further.And there is gap-like seemingly between top panel 61 and cylindrical shell 1 sidewall, between oil baffle 62 and cylindrical shell 1 sidewall, also there is a gap, thus the oil droplet that cylindrical shell 1 sidewall adheres to can be made can to flow into bottom oil sump through this gap under gravity.By arranging the efficiency that oil baffle 62 can improve Oil-gas Separation further further in the oily assembly 6 of gear.
According to Figure 1A, the version of filter assemblies is described below.
As shown in Figure 1A, filter assemblies 7 can comprise net-filter assembly 71 and lower panel 72, and lower panel 72 is arranged on the below keeping off oily assembly 6, and net-filter assembly 71 is fixedly connected with lower panel 72.Alternatively, lower panel 72 can be run through by escape pipe 4 and be fixedly connected with escape pipe 4.
Exemplarily, net-filter assembly can comprise screen pack and strainer filtering circle, and screen pack is fixedly connected with lower panel by strainer filtering circle.Here, lower panel does not arrange through hole, thus the gas mixture after making component filters after filtration directly can be flowed out by escape pipe.
Fig. 4 shows the example of the air inlet pipe in oil eliminator embodiment of the present invention.As shown in Figure 4, the air inlet pipe 3 in the various embodiments described above can be pipe or rectangular tube, is preferably pipe.But the present invention is not limited to this, air inlet pipe 3 can also be the air inlet pipe of other shapes, such as, be triangle tube etc.
Further, the air inlet of air inlet pipe 3 can be set to angular cut 31, as shown in Figure 4, thus gas mixture can be tried one's best enter inner barrel near cylinder lateral wall, the adherent flowing of high speed of gas mixture makes the separative efficiency of centrifugal force to oil droplet higher.
In oil eliminator, the slow or immobilising region of gas mixture flowing is called flow dead.Gas mixture flowing velocity in flow dead is very little, causes the oil droplet in gas mixture to be dropped in guiding subassembly, can reduce the separative efficiency of oil droplet.Fig. 5 shows the contrast schematic diagram of the flow dead formed in the present invention and prior art.As shown in Figure 5, flow dead is usually located at the region between uppermost air inlet pipe and inner core roof.When adopting single air inlet pipe in prior art, due to the sectional area demand fulfillment certain condition of air inlet pipe, such as, need the working condition requirement of compressor, therefore, air inlet pipe can not insert inner barrel from the eminence of guiding subassembly, otherwise can contact with guiding subassembly.So, can flow dead be formed on the top of guiding subassembly, produce long-pending oil.And contrast the present invention, owing to adopting multiple air inlet pipe, therefore, the sectional area of enterprising tracheae can be reduced, correspondingly increase the sectional area of lower inlet duct, also can meet the working condition requirement of compressor, enterprising tracheae can be arranged closer to guiding subassembly top thus.Just because enterprising tracheae can be arranged closer to guiding subassembly top, substantially reducing the scope of flow dead, thus improve the separative efficiency of oil droplet.
In one embodiment, see Fig. 5, the dividing plate 8 that the incoming position place that oil eliminator can also be included in the most top air inlet pipe 3 is vertically arranged, to reduce flow dead further.Although should be understood that the dividing plate shown in Fig. 5 is that vertical direction is arranged, the present invention is not limited thereto, such as, also dividing plate can be set to relative to vertical direction small angle inclination.The reduction of flow dead can improve the separative efficiency of oil eliminator further.
Oil eliminator of the present invention can be arranged on aircondition.In an embodiment of aircondition of the present invention, comprise the oil eliminator that above-mentioned any embodiment provides.
In another embodiment of aircondition of the present invention, can also comprise compressor, condenser, wherein, oil eliminator can be arranged between compressor and condenser.Enter oil eliminator from compressor gas mixture out, the gas mixture after oil eliminator is separated enters condenser again.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Claims (22)

1. an oil eliminator, comprise cylindrical shell (1) and guiding subassembly (2), described guiding subassembly (2) is positioned at the inside of described cylindrical shell (1); Described cylindrical shell (1) is provided with gas outlet (11), and the multiple air inlets (12) arranged from top to bottom.
2. oil eliminator according to claim 1, is characterized in that, also comprises:
Multiple air inlet pipe (3), described multiple air inlet pipe (3) stretches into the inside of described cylindrical shell (1) by described multiple air inlet (12).
3. oil eliminator according to claim 1, is characterized in that, also comprises:
Escape pipe (4), described escape pipe (4) stretches into the inside of described cylindrical shell (1) by described gas outlet (11).
4. oil eliminator according to claim 2, it is characterized in that, described guiding subassembly (2) is spiral stream guidance assembly, described spiral stream guidance assembly meets 1.5 times of pitch≤H≤2 times pitch in the height H of vertical direction, and two adjacent air inlet pipe (3) meet 0.5 times of pitch≤h≤1 times pitch at the distance h of vertical direction.
5. oil eliminator according to claim 2, it is characterized in that, described guiding subassembly (2) is spiral stream guidance assembly, described spiral stream guidance assembly meets 2 times of pitch < H≤4 times pitch in the height H of vertical direction, and two adjacent air inlet pipe (3) are in distance h > 1 times of pitch of vertical direction.
6. the oil eliminator according to claim 4 or 5, it is characterized in that, the center line that the center line of the enterprising tracheae (3) in two adjacent air inlet pipe (3) is rotated clockwise to lower inlet duct (3) has an angle [alpha]=(1-h/ pitch) × 360 degree.
7., according to the arbitrary described oil eliminator of claim 4-6, it is characterized in that, also comprise:
Dividing plate (8), described dividing plate (8) is vertically arranged on the incoming position place of the most top air inlet pipe (3).
8. according to the arbitrary described oil eliminator of claim 2-7, it is characterized in that, the quantity of described air inlet pipe (3) is 2-4.
9., according to the arbitrary described oil eliminator of claim 2-7, it is characterized in that, described air inlet pipe (3) and horizontal line have an angle theta.
10. oil eliminator according to claim 9, is characterized in that, 0 degree≤θ≤45 degree.
11. oil eliminators according to claim 2, is characterized in that, ratio a≤1 of the enterprising tracheae in two adjacent air inlet pipe (3) and the cross-sectional area of lower inlet duct.
12. oil eliminators according to claim 11, is characterized in that, 1/4≤a≤1.
13. oil eliminators according to claim 12, is characterized in that, a=1/2.
14., according to the arbitrary described oil eliminator of claim 1-13, is characterized in that, also comprise:
Baffle plate (5), described baffle plate (5) is positioned between the roof of described cylindrical shell (1) and described guiding subassembly (2), and described guiding subassembly (2) is fixedly connected with described baffle plate (5).
15., according to the arbitrary described oil eliminator of claim 1-13, is characterized in that, also comprise:
Keep off oily assembly (6) and filter assemblies (7), the oily assembly of described gear (6) and filter assemblies (7) are successively set on the inside of the described cylindrical shell (1) of described guiding subassembly (2) below.
16. oil eliminators according to claim 15, it is characterized in that, the oily assembly of described gear (6) comprises the top panel (61) being provided with through hole (611), has gap between described top panel (61) and described cylindrical shell (1) sidewall.
17. oil eliminators according to claim 16, it is characterized in that, the oily assembly of described gear (6) also comprises oil baffle (62), described oil baffle (62) is arranged on described top panel (61) below, has gap between described oil baffle (62) and described cylindrical shell (1) sidewall.
18. oil eliminators according to claim 17, is characterized in that, described oil baffle (62) is umbrella shape oil baffle.
19. oil eliminators according to claim 15, it is characterized in that, described filter assemblies (7) comprises net-filter assembly (71) and lower panel (72), described lower panel (72) is arranged on the oily assembly of described gear (6) below, and described lower panel (72) is fixedly connected with described net-filter assembly (71).
20. according to the arbitrary described oil eliminator of claim 2,4-13, it is characterized in that, described air inlet pipe (3) is pipe, rectangular tube or triangle tube.
21. according to claim 2, the arbitrary described oil eliminator of 4-13, and it is characterized in that, described air inlet pipe (3) has angular cut (31).
22. 1 kinds of airconditions, is characterized in that, comprise the arbitrary described oil eliminator of claim 1-21.
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CN112097426A (en) * 2020-09-07 2020-12-18 珠海格力电器股份有限公司 Gas-liquid separator, air conditioning system and control method thereof
CN113731094A (en) * 2021-09-23 2021-12-03 邵东智能制造技术研究院有限公司 Comprehensive oil-gas separation device
CN113819687A (en) * 2021-09-06 2021-12-21 珠海格力电器股份有限公司 Knockout and compressor
CN115091927A (en) * 2022-06-20 2022-09-23 吉林大学 Centrifugal force-based vehicle-mounted air conditioner gas-liquid separator
US11536501B2 (en) 2018-09-14 2022-12-27 Carrier Corporation Oil separator with integrated muffler

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CN204478606U (en) * 2015-02-02 2015-07-15 珠海格力电器股份有限公司 Oil eliminator and aircondition

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JP2013148308A (en) * 2012-01-23 2013-08-01 Hitachi Appliances Inc Oil separator
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11536501B2 (en) 2018-09-14 2022-12-27 Carrier Corporation Oil separator with integrated muffler
CN112097426A (en) * 2020-09-07 2020-12-18 珠海格力电器股份有限公司 Gas-liquid separator, air conditioning system and control method thereof
CN112097426B (en) * 2020-09-07 2024-04-19 珠海格力电器股份有限公司 Gas-liquid separator, air conditioning system and control method thereof
CN113819687A (en) * 2021-09-06 2021-12-21 珠海格力电器股份有限公司 Knockout and compressor
CN113731094A (en) * 2021-09-23 2021-12-03 邵东智能制造技术研究院有限公司 Comprehensive oil-gas separation device
CN115091927A (en) * 2022-06-20 2022-09-23 吉林大学 Centrifugal force-based vehicle-mounted air conditioner gas-liquid separator

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