CN111256399B - Oil separator and refrigerating system with same - Google Patents

Oil separator and refrigerating system with same Download PDF

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Publication number
CN111256399B
CN111256399B CN201811452742.2A CN201811452742A CN111256399B CN 111256399 B CN111256399 B CN 111256399B CN 201811452742 A CN201811452742 A CN 201811452742A CN 111256399 B CN111256399 B CN 111256399B
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flow
oil separator
oil
hole
plate
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CN111256399A (en
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请求不公布姓名
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Zhejiang Sanhua Intelligent Controls Co Ltd
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Zhejiang Sanhua Intelligent Controls Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The utility model provides an oil separator and have its refrigerating system, an oil separator includes the ware body, intake pipe, outlet pipe, the intake pipe with the outlet pipe respectively with ware body fixed connection, the ware body includes first end cover portion, barrel portion and second end cover portion, first end cover portion with barrel portion fixed connection, second end cover portion with barrel portion fixed connection or integrated into one piece, the intake pipe with first end cover portion fixed connection, first end cover portion includes connecting portion and supports the pressure portion, connecting portion cover is located the surface of barrel portion, support the pressure portion with connecting portion are approximately perpendicular setting, support the pressure portion with connecting portion are integrated into one piece structure, oil separator still includes the flow distribution plate, the through-hole portion link up the upper and lower surface of flow distribution plate, the boss portion is followed the lower extreme protrusion of through-hole portion, the flow distribution plate limit is located support the pressure portion with between the upper end of barrel portion.

Description

Oil separator and refrigerating system with same
[ field of technology ]
The invention relates to the technical field of refrigeration control, in particular to an oil separator and a refrigeration system with the same.
[ background Art ]
Oil separators are typically used in refrigeration systems, and are installed between a compressor and a condenser, in the refrigeration system, when oil droplets are mixed in the refrigerant, the oil droplets affect the heat exchange effect of the refrigeration system, and therefore, before the refrigerant is discharged from the compressor into the condenser, the refrigerant generally needs to pass through an oil-gas separator to reduce the oil droplets mixed in the refrigerant. In order to improve the heat exchange efficiency of the refrigeration system, the separation effect of the oil-gas separator needs to be improved as much as possible.
In view of this, how to provide an oil separator for reducing oil droplets mixed in a refrigerant and relatively improving the oil separation effect is a technical problem to be solved by those skilled in the art.
[ invention ]
The invention aims to provide an oil separator which is used for reducing oil drops from being carried out of an outlet pipe and relatively improving the oil separation effect.
In order to achieve the above purpose, the following technical scheme is adopted:
the oil separator comprises a separator body, an inlet pipe and an outlet pipe, wherein the inlet pipe and the outlet pipe are respectively and fixedly connected with the separator body, the separator body comprises a first end cover part, a cylinder body part and a second end cover part, the first end cover part comprises a connecting part and a pressing part, the connecting part is sleeved on the cylinder body part and is fixedly connected with the cylinder body part, and the inlet pipe is fixedly connected with the first end cover part;
still include the flow distribution plate, the flow distribution plate includes through-hole portion and boss portion, the through-hole portion link up the upper and lower surface of flow distribution plate, boss portion is followed the lower extreme protrusion of through-hole portion, flow distribution plate fixed connection or limit are located support the pressure portion with between the barrel, the axial projection area of pressure portion covers partly the axial projection area of through-hole portion.
The oil separator provided by the invention is characterized in that the separator body is internally provided with the flow dividing plate, the flow dividing plate is provided with the through hole part and the boss part, the flow dividing plate is fixedly connected or limited between the pressing part and the cylinder part, the inlet pipe is fixedly connected with the first end cover part, gasoline entering the separator body is mixed with refrigerant, centrifugal flow is generated after the flow dividing plate acts on the inner wall of the separator body from the boss to collide with the inner wall, oil drops are separated from gaseous refrigerant more easily under the action of centrifugal force, and the oil separating effect can be relatively improved.
[ description of the drawings ]
FIG. 1 is a schematic illustration of one embodiment of an oil separator provided by the present invention;
FIG. 2 is a partial schematic view of the oil separator of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the first end cap portion of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the manifold of FIG. 1;
FIG. 5 is a top view of the manifold of FIG. 1;
FIG. 6 is a top view of the manifold of FIG. 1;
FIG. 7 is a schematic view of the baffle assembly of FIG. 1;
FIG. 8 is a schematic cross-sectional view of the baffle assembly of FIG. 1;
FIG. 9 is a schematic view of a first screen member;
FIG. 10 is a schematic view of the structure of the first retainer ring;
fig. 11 is a schematic view of the filter assembly of fig. 1.
Wherein the above figures include the following reference numerals:
1. the filter assembly includes a housing 11, a first end cap portion 111, a connecting portion 112, a pressure abutment portion 113, a first interface portion 12, a cylindrical portion 13, a second end cap portion 2, an inlet tube 3, an outlet tube 4, a manifold 41, a through hole portion 42, a boss portion 43, a drain portion 5, an adapter 6, an oil return tube 7, a flow guide assembly 71, a gas guide portion 711, an opening portion 72, a securing portion 721, a body portion 722, an extension portion 8, a first screen member 9, a first collar portion 10, a filter assembly 101, a connecting member 102, a second screen member 103, a second collar portion 104, and a bracket
[ detailed description ] of the invention
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, fig. 1 is a schematic diagram of an embodiment of an oil separator according to the present invention, fig. 2 is a partial schematic diagram of the oil separator in fig. 1, fig. 3 is a schematic cross-sectional view of a first end cap in fig. 1, and fig. 4 is a schematic cross-sectional view of a diverter plate in fig. 1.
As shown in the drawing, in a specific embodiment, the oil separator provided by the invention mainly includes a device body 1, an inlet pipe 2, an outlet pipe 3 and a flow dividing plate 4, wherein the device body 1 mainly includes a first end cap portion 11, a cylinder portion 12 and a second end cap portion 13, the first end cap portion 11 and the cylinder portion 12 can be fixedly connected in a welding manner, the second end cap portion 13 and the cylinder portion 12 can be fixedly connected in a welding manner, and an integrally formed manner can also be adopted, and in this embodiment, the second end cap portion 13 and the cylinder portion 12 are fixedly connected and illustrated.
The connector is provided on the device body 1 and is respectively connected with the inlet pipe 2 and the outlet pipe 3, specifically, the connector of the oil separator provided in this embodiment is disposed on the first end cover portion 11 and the barrel portion 12, the inlet pipe 2 and the first end cover portion 11 can be fixedly connected through a welding mode, the outlet pipe 3 and the barrel portion 12 can also be fixedly connected through a welding mode, and it is noted that the above-mentioned fixed connection includes a direct fixed connection and also includes an indirect fixed connection, for example, through a mode of setting an adapter, the outlet pipe 3 and the barrel portion 12 are fixedly connected.
Referring to fig. 4 specifically, the oil separator further includes a flow dividing plate 4, the flow dividing plate 4 includes a through hole portion 41 penetrating through the upper and lower surfaces thereof, and a boss portion 42 protruding along the lower end of the through hole portion 41, the number of the through hole portions 41 is plural (8 through hole portions are provided in the figure), the plural through hole portions 41 are distributed along the circumferential direction of the flow dividing plate 4, and the through hole portions 41 can be uniformly distributed in the flow dividing plate 4, so that the boss portion 42 more uniformly guides the gas-oil mixed refrigerant.
The bottom of the splitter plate 4 is provided with a 1/4 spherical plate-shaped boss part 42, the 1/4 spherical plate-shaped boss part 42 can be directly formed by punching on the splitter plate 4, a hollow 1/2 spherical plate-shaped bulge can be formed by punching, and then half of the boss part 42 is cut off to obtain the 1/4 spherical plate-shaped hollow boss part 42, and after the gas-oil mixed refrigerant flows to the splitter plate 4 due to the arrangement of the boss part 42, the gas-oil mixed refrigerant flows to the inner wall of the splitter plate 1 under the flow guiding action of the boss part 42, and the boss part 42 can be integrally formed on the splitter plate 4 by adopting a metal punching process or the like, can also be fixedly connected to the splitter plate 4 by adopting a welding mode or the like, and the flow guiding part 42 is not limited to a 1/4 spherical plate-shaped structure, so long as the gas-oil mixed refrigerant can flow to the inner wall of the splitter plate 1, for example, the boss part 42 can be in an inclined plane boss and an arc-shaped structure, and the boss part 42 in the shape of the 1/4 spherical plate-shaped boss part 42 is easy to process on the one hand, and the inner wall of the boss part 42 in the shape of the spherical plate-shaped part is a spherical surface, so that the flow guiding effect is better; in addition, the flow resistance of the 1/4 spherical plate-shaped external spherical surface can be reduced as much as possible, and the influence on the stable flow of the gas-oil mixed refrigerant is reduced.
The splitter plate 4 is fixedly connected or limited to the device body 1, please refer to fig. 2 specifically, the shape of the splitter plate 1 is adapted to the shape of the barrel 12, in this embodiment, the barrel 12 is circular, the shape of the splitter plate 4 is also circular, and in addition, the outer diameter of the splitter plate 4 is larger than the inner diameter of the barrel 12, so that the upper end face of the barrel 12 can support the splitter plate 4, and the splitter plate 4 is not dropped.
Referring to fig. 3 specifically, the first end cap 12 includes a connecting portion 111 and a pressing portion 112, where the connecting portion 111 and the pressing portion 112 may be integrally formed, in the oil separator provided in this embodiment, the connecting portion 111 is sleeved on an outer surface of the barrel 12 and is fixedly connected with the outer surface of the barrel 12 in a welded manner, so that the first end cap 11 is fixedly connected with the barrel 12, and the connecting portion 111 and the pressing portion 112 may be substantially perpendicular to each other or may be set at other angles.
After the connecting portion 111 of the first end cap portion 11 is sleeved on the outer surface of the cylindrical portion 12 and fixedly connected to the outer surface of the cylindrical portion 12 by welding, the lower surface of the pressing portion 112 contacts with the upper surface of the flow dividing plate 4, so that the flow dividing plate 4 abuts against the pressing portion 112, and in addition, the flow dividing plate 4 is limited between the first end cap portion 11 and the cylindrical portion 12 due to the fact that the flow dividing plate 4 is supported on the upper end surface of the cylindrical portion 12.
In addition, in addition to the form that the flow dividing plate 4 is limited between the first end cap 11 and the cylindrical body 12, the flow dividing plate 4 of the oil separator provided in this embodiment may be fixedly connected to the first end cap 11 and the cylindrical body 12, specifically, the flow dividing plate 4 may be fixedly connected to the cylindrical body 12 by welding, and meanwhile, may also be fixedly connected to the first end cap 11 by welding, and may also be configured as follows: the flow dividing plate 4 is fixedly connected to one of the cylindrical body 12 and the first end cap 11 by welding, and the flow dividing plate 4 abuts against the other of the cylindrical body 12 and the first end cap 11.
Since the abutment of the abutment portion 112 of the first end cap portion 11 with the flow distribution plate 4 is relatively tight, and in addition, the contact surface between the abutment portion 112 and the flow distribution plate 4 can basically meet the air tightness requirement, the air tightness requirement can be met whether the first end cap portion 11 and the flow distribution plate 4 are directly abutted or welded, so that the air-oil mixed refrigerant entering the device body 1 from the inlet pipe 2 can not or rarely enter the lower portion of the flow distribution plate 4 through the gap between the abutment portion 112 and the flow distribution plate 4 (not through the through hole portion 41 arranged in the flow distribution plate 4), and therefore, the fixed connection or limitation of the flow distribution plate 4 to the device body 1 is feasible in principle.
In general, the axial projection area of the through hole 41 is larger than the axial projection area of the boss 42, at this time, there is a part of gas-oil mixed refrigerant that does not collide with the inner wall of the body 1 through the diversion effect of the boss 42 to generate centrifugal flow, but directly passes through the through hole 41, at this time, the part of gas-oil mixed refrigerant does not collide with the body 1 through the diversion effect of the boss 42 to generate centrifugal flow, in order to avoid or reduce the occurrence of such a situation and improve the effect of oil separation, the pressing portion 112 of the embodiment is provided with the pressing portion 112 to cover a part of the flow area of the through hole 41 in addition to the abutting against the flow dividing plate 4, please refer to fig. 5 specifically, S5 is an inner edge line of the pressing portion 112, at this time, the axial projection area of the pressing portion 112 covers a part of the axial projection area of the through hole 41, and the covered part is located at one side of the through hole 41 close to the periphery of the dividing plate 4, so that the flow area of the through hole 41 is reduced, and the flow area of the refrigerant passing through the through hole 41 is more easily collided with the inner wall of the body 1 due to the fact that the flow guiding effect of the gas-oil mixed refrigerant passing through the through hole 41 is more easily receives the boss and the effect of the centrifugal flow.
Through the above arrangement mode, after entering the device body 1 through the inlet pipe 2, the gas-oil mixed refrigerant can diffuse into the cavity between the first end cover part 11 and the flow distribution plate 4, then the gas-oil mixed refrigerant can pass through the through hole part 41 arranged on the flow distribution plate 4, flow to the inner wall of the device body 1 after the flow guiding effect of the boss part 42, and generate centrifugal flow after colliding with the inner wall of the device body 1, and oil drops are separated from the gaseous refrigerant more easily under the action of centrifugal force, so that the carrying of the oil drops is reduced, and the oil separating effect can be relatively improved.
Referring to fig. 6, in order to further improve the oil separation effect, the situation that the air-oil mixed refrigerant does not flow through the boss portion 42 after passing through the through hole portion 41 should be avoided as much as possible, and the oil separator provided in this embodiment may further be configured as follows: the union of the axial projection area of the pressing portion 112 and the axial projection area of the boss portion 42 covers the axial projection area of the through hole portion 41, and at this time, the situation that the gas-oil mixed refrigerant does not flow through the boss portion 42 after passing through the through hole portion 41 can be avoided as much as possible, so that the gas-oil mixed refrigerant is more likely to collide with the inner wall of the device body 1 to generate centrifugal flow, and the oil separation effect is relatively improved.
Because the oil separator provided by the embodiment separates oil drops from gaseous refrigerants by virtue of centrifugal action, and the centrifugal effect is related to the speed of an object participating in centrifugal motion, under the condition that the mass and the motion radius participating in centrifugal motion are unchanged, the faster the speed of the object participating in centrifugal motion is, the larger the centrifugal force is, the more obvious the centrifugal effect is, and the better the oil separation effect is.
In order to reduce or avoid such a phenomenon, the oil separator provided in this embodiment is further provided with a drainage portion 43, the drainage portion 43 is integrally formed with the flow dividing plate 4 and protrudes upward along the axial direction of the oil separator, so that the flow velocity of the gas-oil mixed refrigerant entering the device body 1 from the inlet pipe 2 drops less before passing through the through hole portion 41, in addition, since the through hole portion 41 is located at the outer periphery of the drainage portion 43, the drainage portion 43 can better guide the gas-oil mixed refrigerant to the through hole portion 41, when the drainage portion 43 is provided as an arc surface, on one hand, the processing is easy, and the arc surface plate-shaped drainage portion 43 can reduce the flow velocity loss of the gas-oil mixed refrigerant as much as possible, although the drainage portion 43 is not limited to an arc surface plate-shaped structure, as long as the flow velocity loss of the gas-oil mixed refrigerant can be reduced, for example, the flow velocity loss of the gas-oil mixed refrigerant can be reduced, and the oil separator can be provided as an inclined boss structure.
In addition, to avoid throttling, the sum of the flow areas of the through hole portions 41 of the flow dividing plate 4 of the oil separator provided in the present embodiment should be larger than the cross-sectional area of the inlet pipe 2, and it should be noted that the flow area of the through hole portions 41 is not the area of the through hole portions 41, but the area of each through hole portion 41 minus the area of each through hole portion covered by the pressing portion 112.
In addition, referring to fig. 7 and 8 specifically, the oil separator provided in this embodiment further includes a flow guiding assembly 7, where the flow guiding assembly 7 includes a flow guiding portion 71 and a fixing portion 72, the flow guiding portion 71 and the fixing portion 72 may be integrally formed, or may be fixedly connected by a welding process, where the flow guiding portion 71 is a hollow structure, the flow guiding assembly 7 includes a flow guiding cavity a, the flow guiding cavity a is a space inside the flow guiding portion 71, and meanwhile, the flow guiding portion 71 includes an opening 711, the opening 711 is located at the lowest end of the flow guiding portion 71, and the fixing portion 72 and the cylinder portion 12 are fixedly disposed or limited, so that the flow guiding assembly 7 is fixedly disposed or limited with the body 1 through the fixing portion 72, and a through hole is disposed in a region outside the flow guiding cavity a of the flow guiding portion 71, where the through hole penetrates through the upper and lower surfaces of the fixing portion 72, and is capable of allowing an oil-mixed refrigerant to pass through.
When the air guide portion 71 is fixedly connected with the fixing portion 72 in a welding manner, the air guide portion 71 can be directly welded and fixed with the fixing portion 72, a flanging structure can be arranged at one end of the air guide portion 71 welded with the fixing portion 72, and then the air guide portion 71 is welded with the fixing portion 72.
In order to facilitate the fixed connection between the flow guiding assembly 7 and the device body 1, the fixing portion 72 may include a body portion 721 and an extension portion 722, where the body portion 721 is fixedly connected to or integrally formed with the extension portion 722, and the extension portion 722 is located on an outer peripheral side of the body portion 721 and extends upward or downward along the axial direction of the barrel 12, so that the fixing or limiting area between the flow guiding assembly 7 and the device body 1 can be increased, and the reliability between the flow guiding assembly 7 and the device body 1 can be increased.
The diversion component 7 is fixedly arranged or limited with the device body 1, and can be specifically arranged as follows: the extension portion 722 is directly and fixedly connected with the cylinder portion 12 in a welding mode, or the extension portion 722 and the cylinder portion 12 are fixedly connected in an interference fit mode, or grooves which are partially or completely contracted along the circumferential direction of the extension portion 722 are formed above and below the position of the extension portion 722 relative to the cylinder portion 12, so that the relative position of the flow guide assembly 7 is limited, in addition, a supporting piece can be arranged, and meanwhile, the supporting piece is fixedly connected with the cylinder portion 12 and the flow guide assembly 7, the flow guide assembly 7 can be fixed or limited to the device body 1 through combination of one or a plurality of modes, and in addition, one end of the outlet pipe 3 is directly communicated with the air guide cavity A.
It should be noted that, the direct communication described in the present specification is specific to the space except for the air guiding cavity a inside the device body 1, and specifically, when one end of the outlet pipe 3 needs to be communicated with the air guiding cavity a through the space except for the air guiding cavity a inside the device body 1, the outlet pipe 3 is not directly communicated with the air guiding cavity a, and when one end of the outlet pipe 3 does not need to be communicated with the air guiding cavity a through the space except for the air guiding cavity a inside the device body 1, the outlet pipe 3 is directly communicated with the air guiding cavity a.
Through the arrangement, as the outlet pipe 3 is directly communicated with the air guide cavity A, the gas-oil mixed refrigerant needs to enter the air guide cavity A from the outside of the air guide cavity A through the opening 711 and rises for a distance of travel, and then leaves the device body 1 through the outlet pipe 3, but in the gas-oil mixed refrigerant, the density of the gaseous refrigerant is smaller relative to that of the oil drops, the oil drops are easier to be influenced by gravity relative to the gaseous refrigerant to settle, and meanwhile, the oil drops are less easy to enter the air guide cavity A from the outside of the air guide part 71 relative to the gaseous refrigerant, and rise for a distance against the gravity of the oil drops, and leave the device body 1 through the outlet pipe 3.
Referring to fig. 9 and 10 specifically, in order to further improve the gas-oil separation effect, the oil separator provided in this embodiment further includes a first filter screen member 8, where the first filter screen member 8 is made of a metal material, specifically, the first filter screen member 8 may be a metal plate structure with a through hole, may also be woven from a metal wire, the first filter screen member 8 may be fixedly connected with the flow guiding assembly 7 through a welded manner, or may be provided with a first retainer member 9, the first filter screen member 8 is located between the flow guiding assembly 7 and the first retainer member 9, the first retainer member 9 may be fixedly connected with the flow guiding assembly 7 through a welded manner, and at this time, the first filter screen member 8 may also be fixedly connected between the flow guiding assembly 7 and the first retainer member 9, or may be provided with a threaded hole on a fixing portion 72 of the flow guiding assembly 7 and the first retainer member 9, and may be screwed with the flow guiding assembly 7, so as to fixedly connect the first filter screen member 8 between the first retainer member 9 and the flow guiding assembly 7.
Through the arrangement, after the gas-oil mixed refrigerant enters the device body 1 through the inlet pipe 2, the gas-oil mixed refrigerant firstly passes through the first filter screen part 8 before passing through the flow guide assembly 7, and when the gas-oil mixed refrigerant passes through the first filter screen part 8, part of oil drops are attached to the first filter screen part 8, so that the effect of further separation is achieved, the oil drops are relatively reduced, and the oil separation efficiency is improved.
Referring to fig. 11 specifically, in order to further improve the oil separation efficiency, the oil separator provided in this embodiment further includes an attachment element (not shown in the figure) and a filtering assembly 10, where the attachment element has a porous structure, and may be formed by winding stainless steel wires, or may have other porous structures, so long as it can adsorb oil drops in the gas-oil mixed refrigerant, and in addition, the pore size and the number of the pores of the attachment element may be adjusted according to actual needs, so as to change the adsorption capacity of the attachment element, for example, adjust the tightness degree of the stainless steel wires.
The filter assembly 10 comprises a connecting piece 101, a second filter screen part 102 and a second retainer ring part 103, wherein the connecting piece 101 is provided with a vertical section, the shape of the vertical section is matched with that of the cylinder 12, so that the connecting piece 101 and the cylinder 12 can be fixedly connected through interference fit or welding and the like, when the connecting piece 101 is in interference fit with the cylinder 12, a gas-oil mixed refrigerant cannot pass through a gap between the connecting piece 101 and the cylinder 12, and a good oil separation effect is achieved, and of course, the connecting piece 101 and the cylinder 12 can also be in an excessive fit mode and the like.
The connecting piece 101 may have a horizontal section, the horizontal section and the vertical section may be integrally formed, and the second filter screen part 102 is usually woven by metal wires, so that the second filter screen part 102 has a certain flexibility and may be appropriately deformed, the second retainer ring part 103 may be made of a metal material, the second filter screen part 102 is located between the connecting piece 101 and the second retainer ring part 103, specifically, the connecting piece 101 may be fixedly connected with the second retainer ring part 103 by welding, at this time, the second filter screen part 102 may also be fixedly connected with the connecting piece 101 and the second retainer ring part 103, or screw holes may be provided on the connecting piece 101 and the second retainer ring part 103, and the connecting piece 101 and the second retainer ring part 103 may be connected by threads, so that the second filter screen part 102 is fixedly connected between the connecting piece 101 and the second retainer ring part 103, or by other forms, the second filter screen part 102 may be fixedly connected between the connecting piece 101 and the second retainer ring part 103.
At this time, before the gas-oil mixed refrigerant passes through the through hole of the flow guiding assembly 7, the gas-oil mixed refrigerant first passes through the filtering assembly 10 and the attaching element, and when the gas-oil mixed refrigerant passes through the filtering assembly 10 and the attaching element, a part of oil drops are attached to the filtering assembly 10 and the attaching element, so that the possibility that the oil drops enter the outlet pipe 3 can be reduced, and the oil separation efficiency is improved.
In addition, the filter assembly 10 may further include a bracket 104, where the bracket 104 may be made of a metal material, and the bracket 104 is pressed between the connecting member 101 and the second retainer member 103, or is fixedly connected between the connecting member 101 and the retainer 103 by welding or the like, and at this time, the bracket 104 is matched with the second filter screen member 102, and the bracket 104 may enable the second filter screen member 102 to extend upward along the axial direction of the device body 1 due to a certain flexibility of the second filter screen member 102.
By the arrangement of the bracket 104, the contact area between the second filter screen part 102 and the gas-oil mixed refrigerant can be increased, so that the possibility that oil drops adhere to the second filter screen part 102 can be increased, and the oil separation efficiency can be improved.
The separated oil drops gather in the second end cover part 13, return to the compressor again through the oil return pipe 6 fixedly connected with the second end cover part 13, the gaseous refrigerant floats upwards, and is discharged from the inside of the device body 1 to enter the condenser through the outlet 3 pipe.
The invention also provides an air conditioning system, which comprises a compressor, a condenser and the oil separator, wherein the compressor is connected with an inlet pipe 2 of the oil separator, a gas-oil mixed refrigerant enters the inside of the device body 1 through the inlet pipe 2, the gas-oil mixed refrigerant is separated by the separation function of the oil separator, oil drops and gaseous refrigerant are separated, the gaseous refrigerant leaves the oil separator through an outlet pipe 3 and enters the condenser to be condensed, and the separated oil drops are deposited to the bottom and then return to the compressor through an oil return pipe 6.
It should be noted that, in this embodiment, terms of up, down, left, right and other directions are all introduced for convenience of description with reference to the drawings in the specification; and the ordinal numbers "first," "second," etc., in the names of the components are also introduced for descriptive convenience and are not meant to imply any limitation on any order of the components.
The oil separator provided by the related technical scheme is described in detail, and specific examples are applied to the oil separator and are only used for helping to understand the method and the core idea of the invention. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (6)

1. The oil separator comprises a device body (1), an inlet pipe (2) and an outlet pipe (3), wherein the inlet pipe (2) and the outlet pipe (3) are respectively and fixedly connected with the device body (1), and the oil separator is characterized in that the device body (1) comprises a first end cover part (11), a cylinder body part (12) and a second end cover part, the first end cover part (11) comprises a connecting part (111) and a pressing part (112), the connecting part (111) is sleeved on the cylinder body part (12) and is fixedly connected with the cylinder body part (12), and the inlet pipe (2) is fixedly connected with the first end cover part (11);
the split plate (4) comprises a through hole part (41) and a boss part (42), the through hole part (41) penetrates through the upper surface and the lower surface of the split plate (4), the boss part (42) protrudes along the lower end of the through hole part (41), the split plate (4) is fixedly connected or limited between the pressing part (112) and the barrel part (12), and an axial projection area of the pressing part (112) covers an axial projection area of part of the through hole part (41); the boss part (42) has a flow guiding function for enabling the gas-oil mixed refrigerant to flow to the inner wall of the device body (1);
the upper surface of the flow dividing plate (4) is propped against the propping part (112), and the lower surface of the flow dividing plate (4) is propped against the upper end of the cylinder body (12); or, the flow distribution plate (4) and the first end cover part (11) are welded and fixed, the lower surface of the flow distribution plate (4) is propped against the upper end of the cylinder part (12), or, the flow distribution plate (4) is welded and fixed with the cylinder part (12), the flow distribution plate (4) is propped against the pressing part (112), or, the upper surface of the flow distribution plate (4) is welded and fixed with the pressing part (112), and the flow distribution plate (4) is welded and fixed with the cylinder part (12).
2. An oil separator according to claim 1, wherein a union of an axial projection area of the pressure-abutting portion (112) and an axial projection area of the boss portion (42) covers an axial projection area of the through hole portion (41).
3. -oil separator according to claim 2, characterised in that the flow-dividing plate (4) comprises a flow-guiding portion (43), the flow-guiding portion (43) protrudes upwards in the axial direction of the oil separator, the flow-guiding portion (43) is integrally formed in the flow-dividing plate (4), and the through-hole portion (42) is located at the outer periphery of the flow-guiding portion (43).
4. An oil separator according to claim 2, wherein the boss portion (42) has a cambered surface plate shape or a 1/4 spherical surface plate shape.
5. -oil separator according to any one of claims 1 to 4, characterised in that the sum of the flow areas of the through-hole portions (41) of the flow dividing plate (4) is greater than or equal to the cross-sectional area of the inlet pipe (2).
6. A refrigeration system comprising a compressor and a condenser, characterized in that it further comprises an oil separator according to claims 1-5, said compressor being connected to an inlet pipe (2) of said oil separator, said condenser being connected to an outlet pipe (3) of said oil separator, said compressor being connected to an oil return pipe (6) of said oil separator.
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WO2022037409A1 (en) * 2020-08-21 2022-02-24 浙江盾安人工环境股份有限公司 Oil return pipe, separator, and refrigeration system
CN113432351A (en) * 2021-07-26 2021-09-24 珠海格力电器股份有限公司 Oil-gas separation device, condenser and air conditioner
CN116241474A (en) * 2023-03-13 2023-06-09 常熟市思源压缩机产业协同创新中心 Oil-gas separator based on oil disturbance noise suppression structure

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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
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