CN107664367B - Oil separator - Google Patents
Oil separator Download PDFInfo
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- CN107664367B CN107664367B CN201710876702.XA CN201710876702A CN107664367B CN 107664367 B CN107664367 B CN 107664367B CN 201710876702 A CN201710876702 A CN 201710876702A CN 107664367 B CN107664367 B CN 107664367B
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- oil
- filter
- oil separator
- air inlet
- air
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- 238000000926 separation method Methods 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 218
- 230000000694 effects Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements 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
Abstract
The invention provides an oil separator, which comprises a shell, a first filter and an oil thrower, wherein the first filter and the oil thrower are arranged in the shell, and the oil separator is convenient to assemble, disassemble and replace a filter screen and other structures in the oil separator, oil particles and gas can be effectively separated, the oil particles which are impacted on centrifugal blades are collected through rotation of the centrifugal blades and are thrown into the lower cylinder to be collected, an air guide curved surface is arranged to guide the gas which enters the oil thrower, so that the impact strength is reduced as much as possible, vortex flow is reduced, and then the pressure loss is reduced, meanwhile, noise is reduced, a guide ring and an air inlet pipe are arranged, the gas pressure and the flow velocity are increased, the efficiency of the oil thrower, the first filter and the second filter is increased, the separation efficiency is further increased, the air flow velocity is increased through the arrangement of the oil thrower, the guide ring and the air inlet pipe, the problem that the optimal working efficiency of the oil separator is influenced by the air flow velocity is solved, and the universality of the oil separator is increased.
Description
Technical Field
The invention relates to the field of oil and gas treatment equipment, in particular to an oil separator.
Background
In the refrigeration and air-conditioning industry, the compressor outputs high-pressure refrigerant steam to the heat exchanger and also outputs part of lubricating oil in the compressor, and if the lubricating oil enters the heat exchanger, the lubricating oil can cause adverse effect on the heat transfer effect of the heat exchanger, so that an oil separator is required to be arranged between the compressor and the heat exchanger and used for separating the refrigerant steam from the lubricating oil, so that the refrigerant enters the heat exchanger in an oil-free state, the heat transfer effect of the condenser and the evaporator is improved, but the existing oil separator has the problem of low oil-gas separation efficiency.
Disclosure of Invention
In order to solve the technical problems, an oil separator capable of increasing oil-gas separation efficiency is provided.
The invention provides an oil separator which comprises a shell and an oil thrower arranged in the shell, wherein an air inlet, an air outlet and an oil return port are formed in the shell, the air inlet, the inside of the shell and the air outlet are sequentially communicated to form an oil separation channel, the oil thrower is arranged in the oil separation channel, an air outlet end of the oil thrower points to the air outlet, the air inlet is arranged on the periphery of the oil thrower, the oil thrower is blown by gas passing through the air inlet to freely rotate along the axis of the oil thrower, and the oil return port is arranged on the lower side of the oil separation channel.
Further, the oil separator further comprises a first filter, the first filter is arranged in the oil separation channel, and the air outlet end of the oil thrower is directed to the first filter.
Further, the first filter is hollow columnar structure, and includes filter screen and baffle, the filter screen encloses into hollow columnar structure, the baffle set up in hollow columnar structure is close to the one end of air inlet, just the outside edge of baffle with the sealed laminating of internal surface of casing, be provided with the air gap on the baffle, the air gap with hollow columnar structure's inside intercommunication.
Further, the first filter further comprises a pressing plate and a pull rod, the pressing plate is arranged at one end of the filter screen away from the partition plate, the pull rod is arranged inside the hollow columnar structure, one end of the pull rod is fixed on the pressing plate, and the other end of the pull rod is fixed on the partition plate
Further, the oil separator further comprises a supporting plate, the supporting plate is abutted to one side, close to the air inlet, of the partition plate, and the lower end of the pull rod is detachably connected with the supporting plate.
Further, the oil separator comprises a clamping plate, wherein the clamping plate is arranged on the supporting plate, and the outer side face of the clamping plate is in fit with the inner side face of the air outlet.
Further, the oil separator also comprises guard plates, the number of the clamping plates is two, the lower ends of the two clamping plates are symmetrically arranged on the supporting plate, two ends of the guard plates are fixedly arranged at the upper ends of one clamping plate respectively, through holes for allowing the pull rods to pass through are formed in the guard plates, and the pull rods are detachably connected with the supporting plate after passing through the through holes.
Further, the supporting plate is a strip-shaped plate, and the projection area of the supporting plate at the air passing opening is not more than one third of the area of the air passing opening.
Further, the oil thrower comprises a central shaft hole and a plurality of centrifugal blades evenly distributed on the periphery of the central shaft hole, and each centrifugal blade is far away from the side edge of the central shaft hole and provided with a toothed groove.
Further, the oil thrower further comprises a wind guiding curved surface, one wind guiding curved surface is arranged between every two adjacent centrifugal blades, one end of each wind guiding curved surface, which is far away from the central shaft hole, is arranged at the side edge of the corresponding centrifugal blade, which is far away from the air outlet, and the other end of each wind guiding curved surface is bent towards the air outlet along the direction that the centrifugal blade is close to the central shaft hole.
Further, the edge of the wind guiding curved surface far away from the central shaft hole is also provided with a toothed groove.
Further, the casing includes upper cylinder and lower cylinder, upper cylinder set up in on the lower cylinder, just upper cylinder's inside with lower cylinder's inside intercommunication forms part oil separation passageway, the gas outlet set up in on the upper cylinder, the air inlet set up in on the lower cylinder, first filter set up in upper cylinder is inside, the oil slinger set up in the lower cylinder.
Further, still be provided with the oil baffle in the lower barrel, the side of oil baffle along with the medial surface laminating setting of barrel down, just oil baffle middle part is provided with the dead axle, the rotatable set up of oil slinger in on the dead axle, still be provided with a plurality of oilholes on the oil baffle, every the oilhole is all run through the oil baffle, and all the oilhole evenly distributed is crossed in on the oil baffle.
Further, the oil return port is arranged on the lower cylinder body and on the lower side of the oil baffle plate.
Further, the oil separator further includes a second filter disposed between the oil separation passage, the oil slinger, and the first filter.
Further, the oil separator further comprises a guide ring, and the guide ring is arranged in the oil separation channel and between the second filter and the first filter.
Further, the upper end of the second filter is provided with a mounting plate, the lower end of the guide ring is attached to the mounting plate, and the upper end of the guide ring is abutted to the side face of the partition plate.
Further, the cross-sectional area of the end of the guide ring near the second filter is larger than the cross-sectional area of the end near the first filter.
Further, an air inlet pipe is arranged at the air inlet, and the inner diameter of the air inlet pipe is sequentially reduced along the direction close to the inside of the shell.
Further, the air inlet pipe comprises a large-diameter section, a transition section, a small-diameter section and an injection section which are sequentially communicated, wherein the sectional area of one end of the injection section, which is far away from the small-diameter section, is smaller than that of the small-diameter section, and the injection section is arranged at the air inlet.
Further, the oil separator further comprises a seal head assembly, the seal head assembly forms the upper end part of the shell, a pressure relief opening is formed in the seal head assembly, and a safety valve is arranged at the pressure relief opening.
Further, the end socket assembly is further provided with a lifting lug.
Further, an oil drain port and/or an oil viewing port are/is arranged on the upper cylinder body.
Further, the upper cylinder body is communicated with the lower cylinder body in a sealing way through a flange.
Further, the lower end of the lower cylinder body is provided with a sewage outlet, and the lower cylinder body is also provided with at least one oil viewing port.
When the oil separator provided by the invention is applied, gas mixed with oil particles enters the shell from the air inlet, namely enters the oil separation channel, the gas collides with the oil thrower from the peripheral side of the oil thrower, so that the oil thrower rotates, when the gas collides with the oil thrower, part of the oil particles can collide with the oil thrower and remain on the oil thrower, and the oil particles are thrown to the inner surface of the shell under the rotation of the oil thrower and flow to the bottom of the shell along the inner surface of the shell to be accumulated, and flow to the outside from the oil return opening, and the purpose of efficiently separating the gas containing the oil particles can be achieved by arranging the oil thrower.
Moreover, set up the casing into barrel and lower barrel, the convenience is loaded and unloaded and is changed filter screen equitable structure inside the oil separator, through setting up the oil thrower, can effectually separate fluid granule and gas, through centrifugal blade's rotation, collect the fluid granule that strikes on the centrifugal blade, and get rid of the inside of barrel down and collect, through setting up the wind-guiding curved surface to get into the gas of oil thrower, turn to the axial of barrel under for from the circumference of barrel down with gas, reduce collision intensity as far as, reduce vortex and then reduce pressure loss, simultaneously reduce noise, through setting up water conservancy diversion circle and air-supply line, can increase gas pressure and velocity of flow, increase the efficiency of oil thrower and first filter and second filter, further increase separation efficiency, can in time clear away the oil deposit through setting up the oil return opening, ensure filter oil distribution efficiency and reliability, and through setting up the oil thrower, water conservancy diversion circle and air-supply line can increase air current velocity, the problem that the best work efficiency is influenced by air current velocity, the commonality of oil separator has been increased.
Drawings
Fig. 1 is a schematic structural view of an oil separator provided by the invention;
FIG. 2 is a top plan view, in semi-section, of an oil separator provided by the present invention;
FIG. 3 is a longitudinal cross-sectional view of an oil separator provided by the present invention;
FIG. 4 is a schematic illustration of the construction of an oil slinger of the oil separator provided by the present invention;
FIG. 5 is a cross-sectional view of an oil slinger of the oil separator provided by the present invention;
fig. 6 is a cross-sectional view of an air inlet pipe of an oil separator provided by the invention;
FIG. 7 is a cross-sectional view of a head assembly of an oil separator provided by the present invention;
FIG. 8 is a cross-sectional view of an upper barrel of an oil separator provided by the present invention;
FIG. 9 is a cross-sectional view of a lower barrel of an oil separator provided by the present invention;
FIG. 10 is a schematic view of the structure of the oil separator provided by the invention after the supporting plate, the clamping plate and the guard plate are connected;
in the figure:
2. a first filter; 3. an oil slinger; 11. an air inlet; 12. an air outlet; 13. an oil return port; 14. an upper cylinder; 15. a lower cylinder; 21. a filter screen; 22. a partition plate; 23. a pressing plate; 24. a pull rod; 25. a supporting plate; 26. a clamping plate; 27. a guard board; 28. an air port; 31. a central shaft hole; 32. centrifugal blades; 33. tooth-shaped grooves; 34. a wind guiding curved surface; 151. an oil baffle plate; 152. fixing the shaft; 153. an oil passing hole; 4. a second filter; 5. a guide ring; 6. an air inlet pipe; 61. a large diameter section; 62. a transition section; 63. a small diameter section; 64. a spray section; 7. a seal head assembly; 71. a pressure relief port; 72. lifting lugs.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The oil separator shown in fig. 1 to 10 comprises a shell and a first filter 2 and an oil thrower 3 which are arranged in the shell, wherein an air inlet 11, an air outlet 12 and an oil return opening 13 are arranged on the shell, the air inlet 11, the inside of the shell and the air outlet 12 are sequentially communicated to form an oil separation channel, the first filter 2 is arranged in the oil separation channel, the oil thrower 3 is arranged on the lower side of the first filter 2, the inside of the oil separation channel, the air outlet end of the oil thrower 3 is pointed to the first filter 2, the air inlet is arranged on the peripheral side of the oil thrower 3, the air passing through the air inlet blows the oil thrower 3 to freely rotate along the axis of the oil thrower 3, the oil return opening 13 is arranged on the lower side of the oil separation channel, the air mixed with oil particles enters the shell from the air inlet 11, namely enters the oil separation channel, the air is collided to the oil thrower 3 by the peripheral side of the oil thrower 3, the air thrower 3 rotates, when the air reaches the oil thrower 3, the air is collided on the oil thrower 3, the air inlet is collided on the upper side of the oil thrower 3, and the air inlet particles flow to the outer side of the shell through the shell, and then the air inlet particles flow to the air inlet 3 in the air inlet through the filter 3 and the air inlet through the filter 3, and then the air inlet is separated from the air inlet 3.
Further, the casing includes upper cylinder 14 and lower cylinder 15, upper cylinder 14 set up in on the lower cylinder 15, just upper cylinder 14's inside with the inside intercommunication formation part of lower cylinder 15 oil separation passageway, gas outlet 12 set up in on the upper cylinder 14, the air inlet 11 set up in on the lower cylinder 15, first filter 2 set up in on upper cylinder 14 is inside, oil slinger 3 set up in the lower cylinder 15, through setting up upper cylinder 14 and lower cylinder 15 can conveniently change and maintain other structures such as first filter 2, oil slinger 3 inside the casing.
Further, the first filter 2 is of a hollow columnar structure and comprises a filter screen 21 and a partition plate 22, the filter screen 21 encloses into the hollow columnar structure, the partition plate 22 is arranged at one end of the hollow columnar structure, which is close to the air inlet 11, the outer side edge of the partition plate 22 is in sealing fit with the inner surface of the upper cylinder 14, an air passing opening 28 is formed in the partition plate 22, the air passing opening 28 is communicated with the inside of the hollow columnar structure, the partition plate 22 separates the inside from the outside of the first filter 2, so that gas can circulate to the outside of the first filter 2 only through the inside of the first filter 2, the filtering efficiency of the first filter 2 is guaranteed, the partition plate 22 can also collect accumulated oil through the first filter 2, and the filter screen 21 can be supported inside the upper cylinder 14 through the partition plate 22, so that recovery is convenient.
Further, the first filter 2 further comprises a pressing plate 23 and a pull rod 24, the pressing plate 23 is arranged at one end of the filter screen 21 away from the partition plate 22, the pull rod 24 is arranged inside the hollow columnar structure, one end of the pull rod is fixed on the pressing plate 23, the other end of the pull rod is fixed on the partition plate 22, the pressing plate 23 can fix the upper end of the filter screen 21, and the upper end and the lower end of the filter screen 21 are fixed through the pull rod 24 and the partition plate 22 at the same time, so that the reliability of the first filter 2 is guaranteed.
Further, the oil separator further comprises a supporting plate 25, the supporting plate 25 is abutted to one side, close to the air inlet, of the partition plate 22, the lower end of the pull rod 24 is detachably connected with the supporting plate 25, and the partition plate 22 is supported by the supporting plate 25, so that the partition plate 22 is convenient to install and maintain.
Further, the oil separator comprises a clamping plate 26, the clamping plate 26 is arranged on the supporting plate 25, the outer side face of the clamping plate 26 is in fit with the inner side face of the air passing opening 28, the clamping plate 26 is in fit with the inner side face of the air passing opening 28 to fix the air passing opening 28, and meanwhile, the clamping plate 26 is in fit with the inner side of the filter screen 21, so that the integral structure of the first filter 2 is maintained.
Further, the oil separator further comprises guard plates 27, the number of the clamping plates 26 is two, the lower ends of the two clamping plates 26 are symmetrically arranged on the supporting plate 25, two ends of the guard plates 27 are fixedly arranged with the upper ends of one clamping plate 26 respectively, through holes for allowing the pull rods 24 to pass through are formed in the guard plates 27, the pull rods 24 are detachably connected with the supporting plate 25 after passing through the through holes, namely the positions of the pull rods 24 are fixed again through the through holes in the guard plates 27, and the problems that vibration and the like cannot occur when the pull rods 24 are impacted by air flow are guaranteed.
Further, the supporting plate 25 is a strip-shaped plate, and the projected area of the supporting plate 25 at the air passing opening 28 is not more than one third of the area of the air passing opening 28, so that the obstruction to the air passing through the air passing opening 28 is reduced as much as possible.
Further, the oil thrower 3 includes the central shaft hole 31 and evenly distributed in a plurality of centrifugal blades 32 of central shaft hole 31 week side, and every centrifugal blade 32 keeps away from the side department of central shaft hole 31 has all seted up tooth-like recess 33, the air current direction of air inlet is directional centrifugal blade 32 keeps away from the part of central shaft hole 31, through blowing centrifugal blade 32 reaches pivoted purpose, and the fluid granule striking is on centrifugal blade 32, and centrifugal blade 32 has reflection, absorption, centrifugal separation effect to the oil droplet, and the fluid granule is piled up on centrifugal blade 32 and gets rid of to the medial surface of barrel 15 down, and then reaches the purpose of first separation, and simultaneously tooth-like recess 33 on the centrifugal blade 32 can strengthen the adsorption effect, and the induced oil film forms the oil droplet, does benefit to simultaneously and reduces the vortex, and oil thrower 3 plays the oil gas separation effect. The guiding curved surface has adsorption, reflection and centrifugation effects on oil drops and has reflection and lifting effects on refrigerant gas. With the change of h and the change of the radius r, the centrifugal force changes proportionally, so that the oil slinger 3 can cope with both full load and partial load: the rotating speed of the oil thrower 3 is larger under full load, small-particle-size oil drops are centrifugally separated out at a small radius, and the small-particle-size oil drops are centrifugally separated out at a large radius under partial load.
Further, the oil thrower 3 further includes a curved air guiding surface 34, and one curved air guiding surface 34 is disposed between two adjacent centrifugal blades 32, one end of the curved air guiding surface 34 away from the central shaft hole 31 is disposed at a side edge of the corresponding centrifugal blade 32 away from the air outlet 12 (the upper cylinder 14), and the other end is curved towards the air outlet 12 (the upper cylinder 14) along a direction that the centrifugal blade 32 is close to the central shaft hole 31, that is, the curved air guiding surface 34 can turn an air flow entering from the air inlet to an axial direction of the oil thrower 3, and loss of air flow velocity and air pressure caused by air collision can be reduced as far as possible through parabolic guiding.
Further, the edge of the wind guiding curved surface 34 far away from the central shaft hole 31 is also provided with a toothed groove 33, which can strengthen the adsorption effect, induce the oil film to form oil drops, and simultaneously facilitate reducing vortex.
Further, the lower cylinder 15 is further internally provided with an oil baffle 151, the side edges of the oil baffle 151 are attached to the inner side surface of the lower cylinder 15, a fixed shaft 152 is arranged in the middle of the oil baffle 151, the oil thrower 3 is rotatably arranged on the fixed shaft 152, the oil baffle 151 is further provided with a plurality of oil passing holes 153, each oil passing hole 153 penetrates through the oil baffle 151, all the oil passing holes 153 are uniformly distributed on the oil baffle 151, accumulated oil flows to the bottom of the lower cylinder 15 through the oil passing holes 153, the oil baffle 151 can obstruct the disturbance of gas at the air inlet to the oil accumulated on the lower side of the lower cylinder 15, and meanwhile, the oil thrower 3 can be supported through the fixed shaft 152.
Preferably, the oil slinger 3 is fixed to the fixed shaft 152 through a bearing, and the rolling friction resistance of the relative rotation between the inner and outer rings of the bearing is very small, so that the exhaust pressure loss during rotation of the oil slinger 3 is very small, and the bearing is a tapered roller bearing.
Further, the oil return port 13 is disposed on the lower cylinder 15 below the oil baffle 151.
Further, the oil separator further comprises a second filter 4, wherein the second filter 4 is arranged between the oil separation channel, the oil slinger 3 and the first filter 2, and the gas passing through the oil slinger 3 is filtered for the second time through the second filter 4 again.
Further, the oil separator further comprises a guide ring 5, the guide ring 5 is arranged in the oil separation channel and between the second filter 4 and the first filter 2, gas passing through the second filter 4 can be guided to the first filter 2, the influence of the partition plate 22 on the gas flow is prevented, meanwhile, oil particles are in contact with the inner wall of the guide ring 5, adsorption occurs, an oil film is formed, the oil film becomes thick into large oil drops under the action of gravity, and the large oil drops fall into the lower part of the lower cylinder 15.
Further, a mounting plate is arranged at the upper end of the second filter 4, the lower end of the guide ring 5 is bonded and welded on the mounting plate, and the upper end is welded on the side face of the partition plate 22.
Further, the cross-sectional area of the end, close to the second filter 4, of the guide ring 5 is larger than the cross-sectional area of the end, close to the first filter 2, of the guide ring 5, and the guide ring 5 is used for guiding airflow to rise, and is in a special horn mouth shape, so that vortex and pressure loss can be reduced, the contact area between oil-containing gas and the inner wall can be increased, oil films and oil drops can be formed by induction, and the oil separation efficiency can be improved.
Preferably, the inner cylinder body is also provided with an oil viewing port, so that the pollution and oil accumulation condition of the fine filter can be observed, and the time for replacing the filter is conveniently determined.
Further, the air inlet is provided with the air inlet pipe 6, and the inner diameter of the air inlet pipe 6 in the direction close to the inside of the shell is sequentially reduced, so that the flow rate of gas entering the air inlet can be increased, the kinetic energy effect is increased, the rotation rate of the oil thrower disc 3 is increased, and the separation efficiency is further increased.
Further, the air inlet pipe 6 includes a large-diameter section 61, a transition section 62, a small-diameter section 63 and an injection section 64 which are sequentially communicated, a cross-sectional area of one end of the injection section 64 away from the small-diameter section 63 is smaller than a cross-sectional area of the small-diameter section 63, and the injection section 64 is disposed at the air inlet.
Preferably, the air inlet pipe is tangentially welded at the lower cylinder 15, the arc tangent plane coincides with the inner wall of the upper cylinder 14 of the oil separator, and the radius is equal, and the air inlet pipe does not protrude out of the inner wall of the lower cylinder 15, so that the air flow movement is not disturbed, the vortex flow is reduced, and the pressure loss is reduced.
Further, the oil separator also comprises a seal head assembly 7, the seal head assembly 7 is formed at the upper end part of the shell, a pressure relief opening 71 is formed in the seal head assembly 7, a safety valve is arranged at the pressure relief opening 71, the upper cylinder 14 can be effectively sealed by arranging the seal head assembly 7, and the problem of damage to the device caused by overhigh pressure in the upper cylinder 14 can be effectively prevented by arranging the pressure relief opening 71.
Further, the lifting lugs 72 are further arranged on the seal head assembly 7, and the lifting lugs 72 can be utilized to carry out operations such as lifting and the like on the assembled oil separator, so that the first filter 2 is convenient to install, maintain and replace.
Further, an oil drain port is arranged between the air outlet 12 and the partition plate 22 of the upper cylinder 14, and an oil drain valve is arranged at the oil drain port; the upper cylinder 14 is provided with an oil viewing port, the oil discharge valve is used for discharging oil, and when the accumulated oil of the first filter 2 is seen through the oil viewing port, the oil is discharged timely.
Further, the upper cylinder 14 and the lower cylinder 15 are communicated in a sealing manner through a flange, and can be sealed through the flange, so that the installation, maintenance and disassembly of the second filter, the oil thrower and the like are also facilitated.
Further, the lower end of the lower cylinder 15 is provided with a drain outlet, a drain plug is arranged at the drain outlet, sundries in the lower cylinder 15 can be discharged, and the lower cylinder 15 is also provided with at least one oil viewing port for observing the oil level.
Preferably, the upper cylinder 14 and the lower cylinder 15 are hollow cylindrical structures, and the axes of the oil slinger 3, the guide ring 5, the oil baffle 151 and the baffle 22 are all collinear with the axes of the upper cylinder 14 and the lower cylinder 15.
Preferably, a certain height difference exists between the upper cylinder 14 and the lower cylinder 15, and a certain distance exists between the uppermost end of the oil thrower 3 and the lowermost end of the first filter 2, so that the gravity separation effect can be generated
The oil separator of this application theory of operation does: when the oil-gas mixture passes through the air inlet pipe, the pipe diameter is changed from large to small, the air flow speed is increased, the kinetic energy is increased, the oil-gas mixture tangentially enters the oil separator with larger kinetic energy, the oil-gas mixture is in orthogonal collision with the centrifugal blades 32 of the oil thrower 3, force couple is generated to act on the oil thrower 3, so that the oil thrower 3 rotates at high speed along the fixed shaft 152, in the process, oil drops in the exhaust collide with the centrifugal blades 32 and the guide curved surface, reflect and adsorb, the large-particle-size oil drops directly throw out under the action of centrifugal force, fall into the oil storage tank along the inner wall of the oil separator, the small-particle-size oil drops adsorb on the centrifugal blades 32 and the guide curved surface to form an oil film, the oil film becomes large from small to thick under the action of the adsorption force, the centrifugal force and the gravity, and the oil film is induced into large oil drops when reaching the saw teeth, and is thrown out under the action of the centrifugal force and falls into the oil storage tank along the inner wall of the oil separator. At the same time, the oil-gas mixture (containing small oil components) collides with the guide curved surface to generate a reflection lifting effect, and flows from bottom to top under the combined action of lifting force and pressure, through the second filter 4, the oil drops with medium particle diameters are separated out and fall into the lower part of the lower cylinder 15, the oil-gas mixture (containing small-particle-diameter oil components) continuously rises, when reaching the guide ring 5, part of the small-particle-diameter oil drops contact with the inner wall of the guide ring 5 and are adsorbed to form an oil film, the oil film becomes large oil drops under the action of gravity, the oil film becomes large oil drops and falls into the lower part of the lower cylinder 15, the oil-gas mixture (containing part of the small-particle-diameter oil components) continuously rises, and the small-particle-diameter oil drops are partially polymerized into large oil drops during the rising process and fall into an oil storage pool under the action of gravity. When the cold gas (containing a small amount of small-particle-diameter oil components) passes through the first filter 2, small-particle-diameter oil droplets are separated again to form large-particle-diameter oil droplets, which fall into the lower part of the lower cylinder 15. The oil-containing refrigerant gas is subjected to combined action of adsorption separation, centrifugal separation, gravity separation and multistage filtration separation of the oil separator, so that the oil is efficiently separated.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (21)
1. An oil separator, characterized in that: the oil separation device comprises a shell and an oil thrower (3) arranged in the shell, wherein an air inlet (11), an air outlet (12) and an oil return port (13) are formed in the shell, the air inlet (11), the inside of the shell and the air outlet (12) are sequentially communicated to form an oil separation channel, the oil thrower (3) is arranged in the oil separation channel, an air outlet end of the oil thrower (3) points to the air outlet (12), the air inlet is arranged on the peripheral side of the oil thrower (3), and air passing through the air inlet blows the oil thrower (3) to freely rotate along the axis of the air thrower, and the oil return port (13) is arranged on the lower side of the oil separation channel; the oil thrower (3) comprises a central shaft hole (31) and a plurality of centrifugal blades (32) which are uniformly distributed on the periphery of the central shaft hole (31), and tooth-shaped grooves (33) are formed in the side edges of each centrifugal blade (32) away from the central shaft hole (31); the oil thrower (3) further comprises an air guide curved surface (34), one air guide curved surface (34) is arranged between every two adjacent centrifugal blades (32), one end, away from the central shaft hole (31), of each air guide curved surface (34) is arranged at the side edge, away from the air outlet (12), of the corresponding centrifugal blade (32), and the other end is bent towards the air outlet (12) along the direction, close to the central shaft hole (31), of each centrifugal blade (32); the edge of the wind guide curved surface (34) far away from the central shaft hole (31) is also provided with a toothed groove (33); the oil separator further comprises a first filter (2), the first filter (2) is arranged in the oil separation channel, and the air outlet end of the oil thrower (3) is directed to the first filter (2).
2. An oil separator as defined in claim 1 wherein: the first filter (2) is of a hollow columnar structure and comprises a filter screen (21) and a partition plate (22), the filter screen (21) encloses the hollow columnar structure, the partition plate (22) is arranged at one end of the hollow columnar structure, which is close to the air inlet (11), the outer side edge of the partition plate (22) is in sealing fit with the inner surface of the shell, an air outlet is formed in the partition plate (22), and the air outlet (28) is communicated with the inside of the hollow columnar structure.
3. An oil separator as defined in claim 2 wherein: the first filter (2) further comprises a pressing plate (23) and a pull rod (24), the pressing plate (23) is arranged at one end, far away from the partition plate (22), of the filter screen (21), the pull rod (24) is arranged inside the hollow columnar structure, one end of the pull rod is fixed on the pressing plate (23), and the other end of the pull rod is fixed on the partition plate (22).
4. An oil separator as defined in claim 3, wherein: the oil separator also comprises a supporting plate (25), wherein the supporting plate (25) is abutted to one side, close to the air inlet, of the partition plate (22), and the lower end of the pull rod (24) is detachably connected with the supporting plate (25).
5. An oil separator as defined in claim 4 wherein: the oil separator comprises a clamping plate (26), wherein the clamping plate (26) is arranged on the supporting plate (25), and the outer side surface of the clamping plate (26) is attached to the inner side surface of the air passing opening.
6. An oil separator as defined in claim 5 wherein: the oil separator further comprises guard plates (27), the number of the clamping plates (26) is two, the lower ends of the two clamping plates (26) are symmetrically arranged on the supporting plate (25), two ends of the guard plates (27) are fixedly arranged at the upper ends of one clamping plate (26) respectively, through holes for enabling the pull rods (24) to pass through are formed in the guard plates (27), and the pull rods (24) are detachably connected with the supporting plate (25) after passing through the through holes.
7. An oil separator as defined in claim 4 wherein: the supporting plate (25) is a strip-shaped plate, and the projection area of the supporting plate (25) at the air passing opening is not more than one third of the area of the air passing opening.
8. An oil separator as defined in claim 1 wherein: the shell comprises an upper cylinder body (14) and a lower cylinder body (15), the upper cylinder body (14) is arranged on the lower cylinder body (15), the inside of the upper cylinder body (14) is communicated with the inside of the lower cylinder body (15) to form part of the oil separation channel, the air outlet (12) is arranged on the upper cylinder body (14), the air inlet (11) is arranged on the lower cylinder body (15), the first filter (2) is arranged inside the upper cylinder body (14), and the oil slinger (3) is arranged in the lower cylinder body (15).
9. An oil separator as defined in claim 8 wherein: still be provided with oil baffle (151) in barrel (15) down, the side of oil baffle (151) along with the medial surface laminating of barrel (15) down sets up, just oil baffle (151) middle part is provided with dead axle (152), oil slinger (3) rotationally set up in on dead axle (152), still be provided with a plurality of oilholes (153) on oil baffle (151), every oilhole (153) all run through oil baffle (151), and all oilhole (153) evenly distributed in on oil baffle (151).
10. An oil separator as defined in claim 9 wherein: the oil return port (13) is arranged on the lower cylinder body (15) and at the lower side of the oil baffle plate (151).
11. An oil separator as defined in claim 2 wherein: the oil separator further comprises a second filter (4), wherein the second filter (4) is arranged between the oil separation channel, the oil thrower disc (3) and the first filter (2).
12. An oil separator as defined in claim 11 wherein: the oil separator also comprises a guide ring (5), wherein the guide ring (5) is arranged in the oil separation channel and between the second filter (4) and the first filter (2).
13. An oil separator as defined in claim 12 wherein: the upper end of the second filter (4) is provided with a mounting plate, the lower end of the guide ring (5) is attached to the mounting plate, and the upper end of the guide ring is abutted to the side face of the partition plate (22).
14. An oil separator as defined in claim 12 wherein: the cross-sectional area of the end of the guide ring (5) close to the second filter (4) is larger than that of the end close to the first filter (2).
15. An oil separator as defined in claim 1 wherein: an air inlet pipe (6) is arranged at the air inlet (11), and the inner diameter of the air inlet pipe (6) is sequentially reduced along the direction close to the inside of the shell.
16. An oil separator as defined in claim 15 wherein: the air inlet pipe (6) comprises a large-diameter section (61), a transition section (62), a small-diameter section (63) and an injection section (64) which are sequentially communicated, wherein the cross-sectional area of one end of the injection section (64) away from the small-diameter section (63) is smaller than that of the small-diameter section (63), and one end of the injection section (64) away from the small-diameter section is arranged at the air inlet (11).
17. An oil separator as defined in claim 1 wherein: the oil separator further comprises a seal head assembly (7), the seal head assembly (7) forms the upper end part of the shell, a pressure relief opening (71) is formed in the seal head assembly (7), and a safety valve is arranged at the pressure relief opening (71).
18. An oil separator as defined in claim 17 wherein: and a lifting lug (72) is further arranged on the seal head assembly (7).
19. An oil separator as defined in claim 8 wherein: the upper cylinder body (14) is provided with an oil drain port and/or an oil viewing port.
20. An oil separator as defined in claim 8 wherein: the upper cylinder (14) and the lower cylinder (15) are communicated in a sealing way through a flange.
21. An oil separator as defined in claim 8 wherein: the lower end of the lower cylinder body (15) is provided with a sewage outlet, and the lower cylinder body (15) is also provided with at least one oil viewing port.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876702.XA CN107664367B (en) | 2017-09-25 | 2017-09-25 | Oil separator |
| PCT/CN2018/101311 WO2019056900A1 (en) | 2017-09-25 | 2018-08-20 | Oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710876702.XA CN107664367B (en) | 2017-09-25 | 2017-09-25 | Oil separator |
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| Publication Number | Publication Date |
|---|---|
| CN107664367A CN107664367A (en) | 2018-02-06 |
| CN107664367B true CN107664367B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710876702.XA Active CN107664367B (en) | 2017-09-25 | 2017-09-25 | Oil separator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107664367B (en) |
| WO (1) | WO2019056900A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664367B (en) * | 2017-09-25 | 2024-03-08 | 珠海格力电器股份有限公司 | Oil separator |
| CN114961922B (en) * | 2021-02-25 | 2023-11-24 | 北京汽车动力总成有限公司 | Oil-gas separator assembly and vehicle |
| CN113458725B (en) * | 2021-06-28 | 2022-06-03 | 衢州亿诚机械有限公司 | Manufacturing method of oil-gas separator for screw air compressor |
| CN115475470B (en) * | 2022-09-15 | 2024-01-12 | 东营金辉环保科技有限公司 | Recovery and purification device for oil mist-containing waste gas |
| CN115228210A (en) * | 2022-09-23 | 2022-10-25 | 江苏航达汽配有限公司 | Oil separator for engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752670A (en) * | 2004-09-24 | 2006-03-29 | 乐金电子(天津)电器有限公司 | Oil distributing device for air conditioner |
| CN107120880A (en) * | 2017-06-14 | 2017-09-01 | 珠海格力电器股份有限公司 | Refrigerant purification device |
| CN107664367B (en) * | 2017-09-25 | 2024-03-08 | 珠海格力电器股份有限公司 | Oil separator |
-
2017
- 2017-09-25 CN CN201710876702.XA patent/CN107664367B/en active Active
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2018
- 2018-08-20 WO PCT/CN2018/101311 patent/WO2019056900A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB799101A (en) * | 1955-05-24 | 1958-07-30 | Blaw Knox Cie Fse | Improvements in and relating to gas purifiers |
| CN1702403A (en) * | 2005-03-23 | 2005-11-30 | 烟台冰轮股份有限公司 | High performance oil-gas separator for compressors |
| CN107062716A (en) * | 2013-12-23 | 2017-08-18 | 珠海格力电器股份有限公司 | Vertical oil separator and air-conditioning system |
| CN205383668U (en) * | 2016-02-18 | 2016-07-13 | 芜湖广盈实业有限公司 | Novel lampblack absorber impeller |
| CN105712434A (en) * | 2016-03-23 | 2016-06-29 | 徐州立方机电设备制造有限公司 | Oil-water separation device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019056900A1 (en) | 2019-03-28 |
| CN107664367A (en) | 2018-02-06 |
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