CN103438627B - Gs-oil separator - Google Patents
Gs-oil separator Download PDFInfo
- Publication number
- CN103438627B CN103438627B CN201310331462.7A CN201310331462A CN103438627B CN 103438627 B CN103438627 B CN 103438627B CN 201310331462 A CN201310331462 A CN 201310331462A CN 103438627 B CN103438627 B CN 103438627B
- Authority
- CN
- China
- Prior art keywords
- oil
- oil return
- pipe
- cylinder
- end cover
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims abstract description 189
- 239000010687 lubricating oil Substances 0.000 claims abstract description 73
- 239000012535 impurity Substances 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 30
- 239000003507 refrigerant Substances 0.000 claims description 26
- 230000008021 deposition Effects 0.000 claims description 14
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of gs-oil separator.This gs-oil separator comprises: cylindrical shell, be arranged at upper end cover and the bottom end cover of cylinder top and bottom respectively, the air inlet pipe in cylindrical shell is extended into from the sidewall on cylindrical shell top, run through upper end cover and the blast pipe be communicated with cylinder lumen and run through bottom end cover and the oil return pipe be communicated with cylinder lumen, this gs-oil separator also comprises: return filter, its sealing is arranged at described cylindrical shell bottom and covers the oil return pipe be communicated with cylinder lumen, to be included in from the bottom of return filter that up predetermined position arranges, for the screen pack filtered lubricating oil isolated from fluid-mixing.Application the present invention, can effectively be separated oil return impurity, and prevent return line from blocking.
Description
Technical Field
The invention relates to an oil-gas separation technology, in particular to an oil-gas separator.
Background
The air conditioner compresses refrigerant gas by using a compressor, and realizes refrigeration and heating functions through the refrigerant. In the operation process of the air conditioner, lubricating oil is needed to lubricate the internal parts of the compressor, so that mechanical faults are prevented, and the service life and the reliability of the compressor are improved.
Thus, the gas discharged from the compressor is actually a mixed fluid of refrigerant gas and lubricating oil. The lubricating oil enters the heat exchanger along with refrigerant gas to perform refrigeration and heating circulation, and an oil film is formed on the surface of the heat exchanger along with the time, so that the heat exchange thermal resistance is increased, the refrigeration and heating effects of the heat exchange air conditioner are influenced, the oil quantity returned to the compressor is too small, the abrasion among internal parts of the compressor is increased, and the service life and the reliability of the compressor are influenced. Therefore, it is necessary to provide an oil-gas separation device in the compressor discharge line to separate the lubricant oil from the refrigerant gas and return the separated lubricant oil to the compressor for recycling.
Fig. 1 is a front view structural schematic diagram of a conventional oil-gas separator. Referring to fig. 1, the conventional oil and gas separator includes: a housing 50, an exhaust pipe 51, an oil return pipe 52, and an intake pipe 53; wherein,
a housing 50 including a cylindrical portion having a certain length and tapered neck portions respectively tapered toward both ends; the conical necking parts at the two ends can be respectively called as an upper conical necking and a lower conical necking; the upper tapered throat and the lower tapered throat are both located on the central axis of the cylindrical portion of the housing 50;
a gas discharge pipe 51 penetrating into the interior of the casing 50 from an upper tapered throat of the casing 50 for discharging refrigerant gas;
an oil return pipe 52 fixed to the lower tapered throat of the housing 50, and having an end surface close to the inside of the housing 50 flush with an end surface of the lower tapered throat inside the housing 50, for discharging return oil;
an intake pipe 53 connected to the inner wall surface of the cylindrical portion of the casing 50 in the tangential direction, for discharging a mixed flow of the refrigerant gas discharged from the compressor and the lubricating oil into the casing 50;
the vertical distance between the bottom end surface of the exhaust pipe 51 and the central axis of the intake pipe 53 is L1, and the vertical distance between the bottom end surface of the oil return pipe 52 and the end surface of the casing 50 is L2.
A mixed fluid of the refrigerant gas discharged from the compressor and the lubricating oil flows into the casing 50 through the intake pipe 53; the mixed flow flowing in the intake pipe 53 makes a spiral motion due to the rotational motion of the compressor, and after flowing into the casing 50, the mixed flow rotates and descends in the casing 50 in a spiral manner; the oil mist (fine particles of lubricating oil) collides with the inner wall of the casing 50 and adheres to the inner wall of the casing 50 by the centrifugal force generated by the spiral rotation, and therefore the oil mist mixed in the refrigerant gas is gradually separated from the refrigerant gas; the refrigerant gas from which the oil mist is separated flows out from the gas discharge pipe 51, and the lubricating oil adhering to the inner wall of the casing 50 descends along the inner wall of the casing 50 by the action of gravity, is discharged from the oil return pipe 52, flows to the oil return line via the capillary tube, and returns to the compressor.
The compressor inevitably generates some abrasive dust in the running process, particularly in the initial running-in process, so that some impurities such as iron powder enter the oil-gas separator along with the exhaust gas of the compressor; due to the density difference, most of the impurities are separated from the gas-oil separator along with the lubricating oil and the refrigerant gas, and then return to the compressor through the oil return pipeline together with the lubricating oil, so that the impurities returning to the compressor can increase the abrasion among internal parts of the compressor, and the service life and the reliability of the compressor are influenced. In order to solve the problem of oil return impurities, on one hand, a filter screen can be added at the bottom of an exhaust pipe in the oil-gas separator, and auxiliary components such as an oil-permeable partition plate and the like connected with the inner wall of a shell are arranged below the filter screen to filter impurities, but pressure loss at the inlet and the outlet of the oil-gas separator can be caused, the flow rate of refrigerant gas is reduced, and oil return efficiency is affected; on the other hand, can be through adding the oil return filter that is provided with the filter screen in returning oil pipe way, separate impurity from the lubricating oil through the filter screen, nevertheless directly remain impurity on the filter screen can accumulate gradually, cause the oil return filter to block up, finally lead to returning oil pipe way to block up, like this, not only reduced the oil return efficiency of compressor, aggravated the damage of compressor, add the oil return filter moreover, can increase air conditioning system's cost.
Disclosure of Invention
The embodiment of the invention provides an oil-gas separator which can effectively separate return oil impurities and prevent an oil return pipeline from being blocked.
In order to achieve the above object, an embodiment of the present invention provides an oil-gas separator, including: the barrel sets up respectively in the upper end cover and the lower extreme cover of barrel top and bottom, extends the intake pipe that gets into in the barrel from the lateral wall on barrel upper portion, runs through the upper end cover and with the blast pipe of barrel inner chamber intercommunication and at the barrel lower part and with the time oil pipe that returns of barrel inner chamber intercommunication, this oil and gas separator still includes:
the oil return filter is hermetically arranged on a lower end cover at the bottom of the cylinder body and covers an oil return pipe part communicated with an inner cavity of the cylinder body, and comprises a filter screen which is arranged at a preset position from the bottom of the oil return filter to the upper part and is used for filtering lubricating oil separated from mixed fluid, wherein the filter screen is away from the lower end cover by a preset distance, and the mixed fluid consists of refrigerant gas discharged by a compressor, lubricating oil and impurities;
the oil return filter is arranged in the barrel body and close to the bottom end, and a deposition space used for containing impurities and lubricating oil separated and deposited from the mixed fluid is formed by the oil return filter and the lower end cover.
Preferably, the oil return pipe communicated with the inner cavity of the cylinder body at the lower part of the cylinder body comprises: the oil return pipe penetrates through the lower end cover and is communicated with the inner cavity of the cylinder body.
Preferably, the oil return pipe communicated with the inner cavity of the cylinder body at the lower part of the cylinder body comprises: the oil return pipe is arranged at the position of the side wall of the upward preset position from the bottom end of the cylinder and communicated with the inner cavity of the cylinder.
Preferably, the central axes of the cylinder, the upper end cover, the lower end cover and the exhaust pipe are on the same straight line; the central axes of the oil return filter and the oil return pipe are on the same straight line.
Preferably, the oil return filter further includes:
the filter screen support is arranged on the lower portion of the barrel in a sealing mode and covers the oil return pipe communicated with the inner cavity of the barrel, and the filter screen is fixed in a hole formed in the filter screen support.
Preferably, the oil return filter is located near the lower portion of the cylinder and forms a deposition space with the lower end cover for accommodating impurities and lubricating oil separated and deposited from the mixed fluid, specifically: the filter screen bracket is arranged in the cylinder body and close to the lower part, and the filter screen bracket and the lower end cover form the deposition space.
Preferably, the inner wall of the filter screen bracket forms a stepped hole with a wide upper part and a narrow lower part.
Preferably, the mesh number of the filter screen is 60 meshes to 100 meshes.
Preferably, the height of the filter screen bracket is 1 to 3 times of the diameter of the oil return pipe.
Preferably, the diameter of the cylinder is not less than 2 times the diameter of the air inlet pipe;
the vertical distance between the bottom end face of the exhaust pipe and the central axis of the air inlet pipe is not less than 3 times of the diameter of the air inlet pipe.
Preferably, the perpendicular distance between the bottom end face of the exhaust pipe and the bottom end face of the lower end cover is not less than 4 times of the diameter of the air inlet pipe.
Preferably, the port of the air inlet pipe is a chamfer plane, and the angle of the chamfer plane is 30-60 degrees.
Preferably, the cylinder, the upper end cover and the lower end cover are made of cast iron materials.
According to the technical scheme, the oil-gas separator provided by the embodiment of the invention is characterized in that the oil return filter is arranged in the cylinder, the oil return filter and the lower end cover form a space for containing impurities, and the filter screen for lubricating oil to flow into the oil return pipe is arranged at a preset position from the bottom to the top. Therefore, impurities can be left in the space for containing the impurities formed by the oil return filter and the lower end cover in the oil-gas separator, so that the oil return impurities are effectively separated, and the oil return pipeline is prevented from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of the invention and that other embodiments and drawings may be devised by those skilled in the art based on the exemplary embodiments shown in the drawings.
Fig. 1 is a front view structural schematic diagram of a conventional oil-gas separator.
FIG. 2 is a schematic front view structure diagram of an oil-gas separator in an embodiment of the invention.
Fig. 3 is a schematic top view of an oil-gas separator according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of the oil return filter according to the embodiment of the invention.
Fig. 5 is a schematic front view of an oil return filter according to another embodiment of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the prior art, auxiliary components such as a filter screen, an oil-permeable partition plate and the like are added in the oil-gas separator to filter impurities, so that the pressure loss of an inlet and an outlet of the oil-gas separator can be caused, the volume of the oil-gas separator is increased, and the miniaturization design of an air conditioning system is not facilitated; through adding the oil return filter in the oil return pipeline, separate impurity from the lubricating oil, have the risk that the oil return pipeline blockked up, and increased air conditioning system's cost.
Therefore, aiming at the defects of the prior art, in consideration of the fact that the specific gravity of impurities is greater than that of lubricating oil, the oil-gas separator is internally provided with the oil return filter, the oil return filter is welded in the lower end cover, the oil return filter and the lower end cover form a deposition space for containing the impurities, and a filter screen for allowing the lubricating oil to flow into the oil return pipe is arranged at a preset position from the bottom to the top. Therefore, impurities with large specific gravity are deposited at the bottom of the oil return filter, and the lubricating oil with small specific gravity flows into the oil return pipe through the filter screen on the upper part of the oil return filter, so that the impurities are effectively separated from the lubricating oil, the oil return pipeline is prevented from being blocked, and the reliable and stable operation of the compressor is further ensured; furthermore, auxiliary components such as an oil-permeable partition plate with larger volume and the like do not need to be added on the inner wall of the shell, so that the volume of the oil return filter is effectively reduced.
FIG. 2 is a schematic front view structure diagram of an oil-gas separator in an embodiment of the invention. Fig. 3 is a schematic top view of an oil-gas separator according to an embodiment of the present invention. Referring to fig. 2 and 3, the oil separator includes: barrel 1 sets up respectively in the upper end cover 2 and the lower extreme cover 3 of 1 tops of barrel and bottom, and the lateral wall from 1 upper portion of barrel extends the intake pipe 4 that gets into in the barrel 1, runs through upper end cover 2 and with the blast pipe 5 of 1 inner chamber intercommunication of barrel and run through lower extreme cover 3 and with the time oil pipe 6 that returns of 1 inner chamber intercommunication of barrel, this oil and gas separator still includes:
the oil return filter 7 is hermetically arranged on the lower end cover 3 at the bottom of the cylinder 1 and covers an oil return 6 pipe part extending into the cylinder 1, and comprises a filter screen 8 which is arranged at a preset position from the bottom of the oil return filter 7 to the upper part and is used for filtering lubricating oil separated from mixed fluid, wherein the filter screen 8 is away from the lower end cover 3 by a preset distance; the mixed fluid consists of refrigerant gas discharged by the compressor, lubricating oil and impurities; the oil return filter 7 is formed in the cylinder near the bottom end thereof with the lower end cap 3 to form a settling space for accommodating impurities and lubricating oil separated and settled from the mixed fluid.
In the embodiment of the invention, the oil return filter is arranged in the oil-gas separator, the lower part of the oil return filter and the lower end cover form a space for containing impurities, and the upper part of the oil return filter is provided with the filter screen for lubricating oil to flow into the oil return pipe. Like this, the great impurity of proportion deposits in return oil filter bottom, and the less lubricating oil of proportion is being full of the space of holding impurity after, flows into back the oil pipe through the filter screen on return oil filter upper portion to effectively separate impurity from the lubricating oil, prevented to return oil pipe way and blockked up.
In the embodiment of the present invention, the oil return filter 7 is hermetically disposed on the lower end cover 3 at the bottom of the cylinder 1, and the joint between the oil return filter 7 and the lower end cover 3 is sealed by a sealant, which may be in a welding manner, or in other manners, such as riveting, bolting, and the like.
Preferably, the top of the oil return filter 7 extends into the cylinder 1, and the bottom of the oil return filter is welded to the bottom center of the lower end cover 3, so that impurities deposited in the deposition space can be distributed uniformly, and the service life of the oil-gas separator is prolonged.
In the embodiment of the invention, the oil return pipe can extend into the inner cavity of the cylinder body, for example, penetrates through the lower end cover and extends from the bottom end of the inner side of the lower end cover to the direction of the cylinder body; of course, the oil return pipe can be communicated with the inner cavity of the cylinder body, for example, the oil return pipe penetrates through the lower end cover, and the pipe orifice of the oil return pipe is flush with the bottom end of the inner side of the lower end cover.
The central axes of the cylinder 1, the upper end cover 2, the lower end cover 3, the exhaust pipe 5, the oil return filter 7 and the oil return pipe 6 are on the same straight line, that is, the cylinder 1 is coaxial with the upper end cover 2, the lower end cover 3, the exhaust pipe 5, the oil return filter 7 and the oil return pipe 6. Therefore, the production and processing of the oil-gas separator are facilitated.
The barrel 1, the upper end cover 2 and the lower end cover 3 are made of cast iron materials, so that cost can be effectively reduced.
The diameter of the cylinder body 1 is not less than 2 times of the diameter of the air inlet pipe 4, so that the mechanical strength of the oil-gas separator can be ensured;
the vertical distance between the bottom end surface of the exhaust pipe 5 and the central axis of the air inlet pipe 4 is not less than 3 times of the diameter of the air inlet pipe 4, and the vertical distance between the bottom end surface of the lower end cover 3 and the diameter of the air inlet pipe 4 is not less than 4 times. Thus, a proper space for discharging the refrigerant gas in the cylinder from the discharge pipe can be secured.
In practical application, the air inlet pipe may extend into the cylinder along the side wall of the upper part of the cylinder in a manner that the air inlet pipe is connected with the inner wall surface of the cylinder part along the tangential direction or not. Preferably, in order to make the mixed fluid entering the cylinder body rotate and move downwards in a better spiral shape, the port of the air inlet pipe 4 can be arranged to be a chamfer with an angle of 30-60 degrees.
In the embodiment of the invention, the air inlet pipe 4 is used for discharging the mixed fluid of refrigerant gas, lubricating oil and impurities discharged from the exhaust pipeline of the compressor into the cylinder body 1 to spirally rotate and descend; an exhaust pipe 5 for discharging the refrigerant gas separated by the centrifugal force generated by the spiral rotation and descent; the oil return filter 7 is used for separating impurities and lubricating oil which are gathered at the bottom of the cylinder 1 under the action of centrifugal force and gravity generated by spiral rotation and descending, the separated impurities are left at the bottom of the lower end cover 3 where the oil return filter 7 is positioned, and the separated lubricating oil flows into the oil return pipe 6 through a filter screen 8; and an oil return pipe 6 for discharging the lubricating oil separated from the oil return filter 7 and returning the lubricating oil to the compressor through an oil return line.
In practical application, a certain amount of lubricating oil can be injected into a deposition space formed by the lower part of the oil return filter and the bottom of the lower end cover in advance, so that the lubricating oil separated from the mixed fluid can return to the compressor in time, and the problem that the service life and reliability of the compressor are influenced due to the fact that the lubricating oil is not obtained in time between internal parts of the compressor is avoided.
Fig. 4 is a schematic structural view of the oil return filter according to the embodiment of the invention. Referring to fig. 4, the oil return filter 7 further includes: a filter screen bracket 9; wherein,
the filter screen support 9 is hermetically arranged at the bottom center position of the lower end cover 3 at the lower part of the cylinder 1, covers the part of the oil return pipe 6 extending into the cylinder 1, and forms a deposition space for containing impurities and lubricating oil separated and deposited from a mixed fluid which is composed of refrigerant gas, lubricating oil and impurities and enters the cylinder 1 from the air inlet pipe 4 and is discharged by a compressor, with the lower end cover 3, in the cylinder 1, and the filter screen 8 is fixed in a hole formed in the filter screen support 9;
preferably, the inner wall of the filter screen bracket 9 forms a stepped hole with a wide top and a narrow bottom, so that the lubricating oil can better flow into the oil return pipe 6.
Preferably, the mesh number of the filter screen 8 is 60 to 100 meshes (including 60 and 100 meshes) in consideration of the size of the lubricant molecules, so that the lubricant can be effectively passed through and other impurities can be prevented from passing through, and the impurities deposited in the oil return filter and the lubricant are prevented from flowing into the oil return pipe through the filter screen when the impurities and the lubricant are accumulated to the height of the filter screen.
The height of the filter screen support 9 is 1 to 3 times (not including 1 time, including 3 times) of the diameter of the oil return pipe 6, so that the space of deposited impurities with better height can be ensured, the mechanical manufacturing strength can reach better, and materials can be effectively saved.
In the embodiment of the invention, the mixed fluid of refrigerant gas, lubricating oil and impurities discharged by a compressor enters the cylinder body 1 through the inclined section port of the gas inlet pipe 4 and spirally descends along a fluid channel formed between the gas outlet pipe 5 and the cylinder body 1; after the mixed fluid is introduced into the cylinder 1, oil drops with larger particle sizes are thrown on the inner wall of the cylinder 1 and the outer wall of the exhaust pipe 5 under the action of centrifugal force; impurities like iron powder or copper powder are more easily thrown onto the inner wall of the cylinder 1 and the outer wall of the exhaust pipe 5 under the action of centrifugal force, and flow down along the inner wall of the cylinder 1 and the outer wall of the exhaust pipe 5 together with the separated lubricating oil under the action of gravity; the separated lubricating oil and impurities are gathered at the bottom of the cylinder body 1 and inside the lower end cover 3 under the action of gravity, and the impurities are deposited at the bottom of the lubricating oil because the density of the impurities is greater than that of the lubricating oil; when the oil level at the bottom of the oil-gas separator is higher than the filter screen bracket 9, the lubricating oil enters the oil return pipe 6 and returns to the compressor, and impurities are left on the filter screen 8.
Fig. 5 is a schematic front view of an oil-gas separator according to another embodiment of the present invention. As shown in fig. 5, another oil separator includes: barrel 01 sets up respectively in the upper end cover 02 and the lower extreme cover 03 of barrel top and bottom, extends the intake pipe 04 that gets into in the barrel from the lateral wall on barrel 01 upper portion, runs through the upper end cover and with the blast pipe 05 of barrel inner chamber intercommunication and set up in the lateral wall of the up default position department in barrel 01 lower part bottom and with the time oil pipe 06 that returns of barrel 01 inner chamber intercommunication, this oil and gas separator still includes:
the oil return filter 07 is hermetically arranged on the side wall from the bottom end of the lower part of the cylinder 01 to the upper preset position and covers the oil return pipe 06 part communicated with the inner cavity of the cylinder 01, and comprises a filter screen which is arranged from the bottom of the oil return filter to the upper preset position and is used for filtering lubricating oil separated from mixed fluid, wherein the filter screen is at a preset distance from the lower end cover, and the mixed fluid consists of refrigerant gas discharged by a compressor, lubricating oil and impurities;
the oil return filter is arranged in the barrel body and close to the bottom end, and a deposition space used for containing impurities and lubricating oil separated and deposited from the mixed fluid is formed by the oil return filter and the lower end cover.
In the embodiment of the invention, the oil return filter is arranged in the oil-gas separator, the lower part of the oil return filter and the lower end cover 03 form a space for containing impurities, and the oil return filter is provided with a filter screen for lubricating oil to flow into the oil return pipe 06. Like this, the great impurity of proportion deposits in bottom end cover 03 bottom, and the less lubricating oil of proportion is after being full of the space of holding impurity, flows into back oil pipe 06 through the filter screen on the oil return filter to effectively separate impurity from the lubricating oil, prevented to return oil pipe way and blockked up.
In the embodiment of the present invention, the oil return filter 07 is hermetically disposed on the side wall of the upward preset position at the bottom end of the lower portion of the cylinder 01, and may be welded or in other manners, such as riveting, bolting, and the like, and the joint between the oil return filter 07 and the cylinder 01 is sealed with a sealant.
In the embodiment of the present invention, the oil return pipe 06 may extend into the inner cavity of the cylinder 01, for example, penetrate through the sidewall of the lower bottom end of the cylinder 01 at the preset position upward and extend into the cylinder 01 in the direction perpendicular to the central axis of the cylinder; of course, the oil return pipe 06 may also be only communicated with the inner cavity of the cylinder 01, for example, the oil return pipe 06 penetrates through the side wall of the lower bottom end of the cylinder 01 at the upward preset position, and the pipe orifice of the oil return pipe is flush with the side wall of the cylinder 01.
The central axes of the cylinder 01, the upper end cover 02, the lower end cover 03 and the exhaust pipe 04 are on the same straight line; the oil return filter 07 and the central shaft of the oil return pipe 06 are on the same straight line, and the central shaft of the cylinder 01 is vertical to the central shaft of the oil return pipe 06, so that the production and processing of the oil-gas separator are facilitated.
The cylinder body 01, the upper end cover 02 and the lower end cover 03 are made of cast iron materials.
Preferably, the distance from the bottom end of the lower part of the cylinder to the upward preset position is 1.5-3.5 times of the diameter of the oil return pipe.
The diameter of the cylinder 01 is not less than 2 times of the diameter of the air inlet pipe.
The perpendicular distance between the bottom end surface of the exhaust pipe 05 and the central axis of the intake pipe 04 is not less than 3 times the diameter of the intake pipe 04.
The vertical distance between the bottom end face of the exhaust pipe 05 and the bottom end face of the lower end cover 03 is not less than 4 times the diameter of the intake pipe 04.
In practical application, the air inlet pipe 04 may extend into the cylinder along the sidewall of the upper portion of the cylinder in a manner that the air inlet pipe is connected with the inner wall surface of the cylinder portion along the tangential direction, or not. Preferably, in order to make the mixed fluid entering the cylinder body rotate and move downwards in a better spiral shape, the port of the air inlet pipe 04 can be provided with a chamfer surface, and the chamfer surface angle is 30-60 degrees.
In the embodiment of the invention, the air inlet pipe 04 is used for discharging the mixed fluid of refrigerant gas, lubricating oil and impurities discharged from the exhaust pipeline of the compressor into the cylinder 01 to spirally rotate and descend; an exhaust pipe 05 for discharging the refrigerant gas separated by the centrifugal force generated by the spiral rotation and descent; the oil return filter 07 is used for separating impurities and lubricating oil which are gathered at the bottom of the cylinder 01 under the action of centrifugal force and gravity generated by spiral rotation and descending, the separated impurities are left at the bottom of the lower end cover 03, and the separated lubricating oil flows into the oil return pipe 06 through a filter screen; and an oil return pipe 06 for discharging the lubricating oil separated from the oil return filter 07 and returning the discharged lubricating oil to the compressor through an oil return line.
In practical application, a certain amount of lubricating oil can be injected into a deposition space formed by the lower part of the oil return filter and the bottom of the lower end cover in advance, so that the lubricating oil separated from the mixed fluid can return to the compressor in time, and the problem that the service life and reliability of the compressor are influenced due to the fact that the lubricating oil is not obtained in time between internal parts of the compressor is avoided.
In the embodiment of the present invention, the oil return filter 07 further includes: a filter screen bracket; wherein,
the filter screen support is hermetically arranged on the side wall at a preset position from the bottom end of the lower part of the cylinder body 01 to the upper part and covers the part of the oil return pipe 06 extending into the cylinder body 01, a deposition space for accommodating impurities and lubricating oil separated and deposited from a mixed fluid which is formed by refrigerant gas, lubricating oil and impurities and enters the cylinder body 01 from the air inlet pipe 04 and is discharged by a compressor is formed in the cylinder body 01 close to the bottom end and the lower end cover 03, and the filter screen is fixed in a hole formed in the filter screen support;
preferably, the inner wall of the filter screen bracket forms a stepped hole with a wide top and a narrow bottom, so that the lubricating oil can better flow into the oil return pipe 06.
Preferably, the mesh number of the filter screen is 60 to 100 meshes (including 60 and 100 meshes) in consideration of the size of the lubricant molecules, so that the lubricant can be effectively passed through and other impurities can be prevented from passing through, and when the impurities deposited in the oil return filter and the lubricant accumulate to the height of the filter screen, the impurities are prevented from flowing into the oil return pipe through the filter screen.
The height of the filter screen support is 1 to 3 times (not including 1 time, including 3 times) of the diameter of the oil return pipe 06, so that the space of deposited impurities with better height of the filter screen support can be ensured, the mechanical manufacturing strength can be better, and materials can be effectively saved.
In the embodiment of the invention, the mixed fluid of refrigerant gas, lubricating oil and impurities discharged by a compressor enters a cylinder body 01 through an inclined plane port of an air inlet pipe 04 and spirally descends along a fluid channel formed between an air outlet pipe 05 and the cylinder body 01; after the mixed fluid is introduced into the cylinder 01, oil drops with larger particle sizes are thrown on the inner wall of the cylinder 01 and the outer wall of the exhaust pipe 05 under the action of centrifugal force; impurities like iron powder or copper powder are more easily thrown onto the inner wall of the cylinder 01 and the outer wall of the exhaust pipe 05 under the action of centrifugal force, and flow down along the inner wall of the cylinder 01 and the outer wall of the exhaust pipe 05 together with the separated lubricating oil under the action of gravity; the separated lubricating oil and impurities are gathered at the bottom of the cylinder 01 and inside the lower end cover 03 under the action of gravity, and the impurities are deposited at the bottom of the lubricating oil because the density of the impurities is greater than that of the lubricating oil; when the oil level at the bottom of the oil-gas separator is higher than the filter screen bracket, the lubricating oil enters the oil return pipe 06 and returns to the compressor, and impurities are left on the filter screen.
Therefore, as the oil return filter is arranged in the cylinder body, the filter screen is arranged at the upper part of the oil return filter, and the lower part of the oil return filter and the bottom of the lower end cover form a deposition space, the debris with heavier density is deposited in the formed deposition space, and the lubricating oil with lighter density floats on the upper layer of the debris and flows into the oil return pipe positioned in the oil return filter through the filter screen, thus, the impurities are remained at the bottom of the oil-gas separator, so that the quantity of the impurities entering the oil return pipe is reduced, and the oil return filter has good effect of preventing the oil return pipeline from being blocked; in addition, as the lubricating oil is filtered in the oil-gas separator, an oil return filter is not required to be arranged on an oil return pipeline, so that the cost is reduced, the system is simplified, and the processing procedures are reduced. On the other hand, the impurities can be separated out without adding parts such as a filter screen clapboard with large volume in the oil-gas separator, so that the oil-gas separator can obtain smaller volume and can be directly connected in series on a compressor exhaust pipeline, and the noise is reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also encompasses these modifications and variations.
Claims (13)
1. An oil-gas separator comprising: the barrel sets up respectively in the upper end cover and the lower extreme cover of barrel top and bottom, extends the intake pipe that gets into in the barrel from the lateral wall on barrel upper portion, runs through the upper end cover and with the blast pipe of barrel inner chamber intercommunication and at the time of the return oil pipe of barrel lower part and barrel inner chamber intercommunication, its characterized in that, this oil and gas separator still includes:
the oil return filter is hermetically arranged at the lower part of the cylinder body and covers an oil return pipe communicated with the inner cavity of the cylinder body, and comprises a filter screen which is arranged at a preset position from the bottom of the oil return filter to the upper part and is used for filtering lubricating oil separated from mixed fluid, wherein the filter screen is away from a lower end cover by a preset distance, and the mixed fluid consists of refrigerant gas discharged by a compressor, lubricating oil and impurities;
the oil return filter is arranged in the barrel body and close to the bottom end, and a deposition space used for containing impurities and lubricating oil separated and deposited from the mixed fluid is formed by the oil return filter and the lower end cover.
2. An oil-gas separator as in claim 1, wherein the oil return pipe communicating with the inner cavity of the cylinder at the lower part of the cylinder comprises: the oil return pipe penetrates through the lower end cover and is communicated with the inner cavity of the cylinder body.
3. An oil-gas separator as in claim 1, wherein the oil return pipe communicating with the inner cavity of the cylinder at the lower part of the cylinder comprises: the oil return pipe is arranged at the position of the side wall of the upward preset position from the bottom end of the cylinder and communicated with the inner cavity of the cylinder.
4. An oil-gas separator as in claim 2 or 3, wherein central axes of the cylinder, the upper end cap, the lower end cap, and the exhaust pipe are on the same straight line; the central axes of the oil return filter and the oil return pipe are on the same straight line.
5. An oil separator as in claim 4 wherein the oil return filter further comprises:
the filter screen support is arranged on the lower portion of the barrel in a sealing mode and covers the oil return pipe communicated with the inner cavity of the barrel, and the filter screen is fixed in a hole formed in the filter screen support.
6. An oil separator as claimed in claim 5, wherein the oil return filter forms a settling space for accommodating impurities and lubricating oil separated and settled from the mixed fluid with the lower end cover near the lower part in the cylinder body, and the settling space is specifically: the filter screen bracket is arranged in the cylinder body and close to the lower part, and the filter screen bracket and the lower end cover form the deposition space.
7. An oil separator as claimed in claim 6, wherein the filter screen holder inner wall is formed with a stepped hole having a wide upper portion and a narrow lower portion.
8. An oil and gas separator as in claim 7, wherein the mesh number of the filter screen is 60 to 100 meshes.
9. An oil separator as claimed in claim 5, wherein the height of the filter screen holder is 1 to 3 times the diameter of the oil return pipe.
10. Oil separator according to claim 9,
the diameter of the cylinder is not less than 2 times of the diameter of the air inlet pipe;
the vertical distance between the bottom end face of the exhaust pipe and the central axis of the air inlet pipe is not less than 3 times of the diameter of the air inlet pipe.
11. An oil separator as in claim 9, wherein a perpendicular distance between a bottom end surface of the gas discharge pipe and a bottom end surface of the lower end cover is not less than 4 times a diameter of the gas inlet pipe.
12. An oil and gas separator as in claim 9 wherein the port of the gas inlet pipe is a chamfered surface having an angle of 30 ° to 60 °.
13. An oil separator as in claim 9 wherein the cylinder, the upper end cap and the lower end cap are made of cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310331462.7A CN103438627B (en) | 2013-08-01 | 2013-08-01 | Gs-oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310331462.7A CN103438627B (en) | 2013-08-01 | 2013-08-01 | Gs-oil separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438627A CN103438627A (en) | 2013-12-11 |
| CN103438627B true CN103438627B (en) | 2016-02-17 |
Family
ID=49692325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310331462.7A Active CN103438627B (en) | 2013-08-01 | 2013-08-01 | Gs-oil separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103438627B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987546A (en) * | 2015-02-05 | 2016-10-05 | 佛山市禾才科技服务有限公司 | Device for rapidly checking oil quality of air conditioning system |
| CN108678956B (en) * | 2018-06-19 | 2023-12-19 | 西安交通大学 | Oil-gas separator |
| CN217979391U (en) * | 2021-04-30 | 2022-12-06 | 浙江盾安禾田金属有限公司 | Oil separator and air conditioning system |
| CN115628133B (en) * | 2022-11-09 | 2024-06-28 | 贵州永红航空机械有限责任公司 | Lubricating system oil-gas separator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305627Y (en) * | 1997-07-24 | 1999-01-27 | 程学来 | Device for separating oil from refrigerator |
| CN101398240B (en) * | 2007-09-29 | 2011-01-19 | 浙江三花制冷集团有限公司 | Oil return device and gas-liquid separator |
| CN201373634Y (en) * | 2009-03-20 | 2009-12-30 | 宁波奥克斯电气有限公司 | Oil and gas separator |
| CN201436520U (en) * | 2009-06-30 | 2010-04-07 | 广州联合冷热设备有限公司 | Oil separator |
| CN201748726U (en) * | 2010-07-28 | 2011-02-16 | 广东美的电器股份有限公司 | Oil separator structure of air conditioner |
| CN102230703A (en) * | 2011-01-28 | 2011-11-02 | 大连三洋压缩机有限公司 | Novel oil separator |
| CN203454496U (en) * | 2013-08-01 | 2014-02-26 | 青岛海信日立空调系统有限公司 | Oil-gas separator |
-
2013
- 2013-08-01 CN CN201310331462.7A patent/CN103438627B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103438627A (en) | 2013-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106568246B (en) | Oil separator and air conditioning unit | |
| CN103438627B (en) | Gs-oil separator | |
| CN107062716B (en) | Vertical oil separator and air conditioning system | |
| JP2006322701A (en) | Oil separator and air conditioner having the same | |
| CN104697255A (en) | Separator device for separating lubricating oil and in refrigerating system and method for oil separating | |
| CN203454496U (en) | Oil-gas separator | |
| CN104729167A (en) | Efficient oil-gas separator for compressors | |
| CN109139428B (en) | Oil-gas separator and compressor with same | |
| TW202302200A (en) | Filtering module for use with a vacuum pump | |
| CN203083225U (en) | Refrigerating system and oil separator thereof | |
| CN203454495U (en) | Oil-gas separator | |
| JP5018696B2 (en) | Oil separator and refrigerant compressor provided with oil separator | |
| CN201377946Y (en) | Labyrinth centrifugal oil-gas separator | |
| CN105135770A (en) | Spiral type oil separator | |
| CN103438628A (en) | Oil-gas separator | |
| CN201100236Y (en) | Cyclone separated oil-gas separator | |
| CN207922642U (en) | A kind of oil eliminator for refrigeration compressor | |
| CN212003584U (en) | Rotary vane vacuum pump | |
| CN100436973C (en) | Oil-separator in pipeline | |
| JPH0610852A (en) | Scroll compressor | |
| CN209027154U (en) | Oil separator for compressor, compressor and refrigeration system | |
| CN111810407A (en) | Oil-gas separation structure of compressor, compressor and air conditioner | |
| CN216557799U (en) | Oil separator | |
| CN216044422U (en) | Oil-gas separator, compressor and vehicle | |
| CN205037642U (en) | Compound horizontal oil separator of efficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |