CN212202408U

CN212202408U - Oil separator, compressor unit spare and heat exchange equipment

Info

Publication number: CN212202408U
Application number: CN202020588188.7U
Authority: CN
Inventors: 方文杰; 高科科; 张肃; 李志林
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-22
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to an oil separation technical field provides an oil separator, compressor unit spare and indirect heating equipment. The oil separator comprises a shell, a separation part and an oil discharge part, wherein the shell is provided with an air inlet structure, an exhaust structure and an oil discharge structure; the separation component is arranged in the shell and divides the shell into a first separation area, a second separation area and an oil return area which are communicated, the air inlet structure is arranged at the tangential direction of the shell corresponding to the first separation area, the air inlet structure is communicated with the first separation area, and the exhaust structure is correspondingly communicated with the second separation area; the oil discharge component is arranged in the oil return area and used for adjusting the connection and disconnection of the oil discharge structure and the oil return area. The utility model provides an oil separator, compressor unit spare and indirect heating equipment reduces gaseous flow resistance, promotes the oil separating effect, reduces the oil mass of spouting, helps improving the oil extraction precision.

Description

Oil separator, compressor unit spare and heat exchange equipment

Technical Field

The utility model relates to an oil separation technical field especially relates to oil separator, compressor unit spare and indirect heating equipment.

Background

The oil separator can separate lubricating oil in high-pressure gas discharged by the compressor so as to ensure that the heat exchange system can safely and efficiently operate. The gas vent of compressor has certain oil mass of telling, and to conventional single discharge compressor, gaseous needs pass through motor and oil baffle isotructure, and motor and oil baffle isotructure help gaseous minute oil, and the oil rate of telling is lower relatively this moment, generally can satisfy compressor operation demand. For the compressor with the cylinder in direct discharge, namely, the refrigerant of one path of cylinder is directly discharged out of the compressor, the oil output is too high; if a conventional oil separator is connected to the exhaust port of the path of gas, although oil separation can be performed, the pressure loss of the gas is large, and therefore, the performance loss of the compressor is serious, and the conventional oil separator cannot ensure the oil discharge rate, and thus, the performance requirement of the compressor is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an oil separator promotes the oil separating effect, reduces the oil mass of spouting, helps improving the precision of oil extraction control.

The utility model discloses still provide a compressor unit spare.

The utility model also provides a indirect heating equipment.

According to the utility model discloses oil separator of first aspect embodiment includes:

a housing configured with an air intake structure, an air exhaust structure, and an oil discharge structure;

the separating component is arranged in the shell and used for separating the shell into a first separating area, a second separating area and an oil return area which are communicated, the air inlet structure is arranged at the tangential direction of the shell corresponding to the first separating area and communicated with the first separating area, and the second separating area is communicated with the exhaust structure correspondingly;

and the oil discharge component is arranged in the oil return area and used for adjusting the on-off of the oil discharge structure and the oil return area.

According to the oil separator provided by the embodiment of the utility model, gas enters the first separation area through the gas inlet structure to be subjected to first-stage separation, after the first-stage separation is completed, the gas enters the second separation area to be subjected to second-stage separation, the gas is discharged through the exhaust structure after the second-stage separation, and the gas is discharged after two-stage oil separation, so that the oil separation effect is improved; the oil discharging component is arranged in the shell, and the opening and closing of the oil discharging structure are accurately controlled through the oil discharging component, so that the harm of gas leakage caused by gas flowing out of the oil discharging structure is effectively prevented; and the tangential of the casing that first separation zone corresponds is located to inlet structure to make gaseous entering along the tangential of first separation zone through inlet structure, gaseous whirlwind separation carries out in first separation zone, carries out the second grade separation again after the whirlwind separation, and simple structure simplifies the structure in the casing, helps reducing the flow resistance of gaseous in the casing, reduces gaseous loss of pressure, guarantees the discharge pressure.

According to an embodiment of the present invention, the partition member includes:

the first separating part and the inner wall of the shell limit the second separating area;

the second partition part is of a cylindrical structure connected to the second side of the first partition part, the second partition part surrounds the oil return area, and the annular first separation area is formed between the outer wall of the second partition part and the inner wall of the shell.

According to one embodiment of the utility model, the oil discharging part comprises a floating control ball,

the first partition portion includes:

the shielding part covers the floating control ball in a projection area in the vertical direction;

the communication part is arranged on the periphery of the shielding part and used for communicating the first separation area with the second separation area.

According to an embodiment of the invention, the communication part comprises at least one of a through hole or a notch distributed around the communication part.

According to an embodiment of the present invention, an end of the second partition portion away from the first partition portion is configured as an open structure;

or, the second partition part comprises a side wall with one end connected to the second side of the first partition part and a bottom wall connected to the other end of the side wall, and at least one of the side wall and the bottom wall is provided with a through structure communicated with the first separation area. The second partition part has a simple structure, and can ensure that oil in the first separation area is smoothly discharged.

According to the utility model discloses an embodiment, the outer wall of second partition with form the annular between the inner wall of casing first separation area, the second separation area is located the top of first separation area. The first separation area is internally provided with lower cyclone separation, and the second separation area is internally provided with upper filtering separation, so that the oil separation effect is improved.

According to the utility model discloses an embodiment, be equipped with the filter component in the second separation area, the filter component includes that first filter, second filter and locates first filter with filter core between the second filter, first filter with the second filter connect in the inner wall of casing, the second filter is located first filter orientation one side of exhaust structure, the second filter includes spherical filtration.

According to the utility model discloses an embodiment, the oil extraction part is including floating accuse ball, needle and disk seat, it is used for the drive to float accuse ball the needle is in change between the open position on the disk seat and the closed position, the partition part shelter from in it is in to float accuse ball top.

According to the second aspect of the present invention, the compressor assembly comprises a compressor and the oil separator of the above embodiment, the oil separator is connected to the exhaust port of the compressor.

According to the utility model discloses an embodiment, the compressor includes two independent exhaust passage, every exhaust passage all is equipped with the gas vent, oil separator connects in direct and cylinder intercommunication the gas vent.

According to the third aspect of the present invention, a heat exchange system comprises a condenser, a throttling device, an evaporator and the compressor assembly of the above embodiments.

According to the fourth aspect of the present invention, the heat exchange device comprises the heat exchange system of the above embodiments.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least:

the embodiment of the utility model provides an oil separator, including the casing, locate the partition part in the casing and locate the oil extraction part in the casing, gas gets into first separation zone through the inlet structure, carries out first level separation, and after first level separation was accomplished, gas got into the second separation zone and carries out the second level separation, and through the exhaust structure discharge after the second level separation, gas passed through two-stage branch oil and discharged again, promoted the branch oil effect; the oil discharging component is arranged in the shell, and the opening and closing of the oil discharging structure are accurately controlled through the oil discharging component, so that the harm of gas leakage caused by gas flowing out of the oil discharging structure is effectively prevented; and the tangential of the casing that first separation zone corresponds is located to the inlet structure to make gas carry out cyclone in first separation zone, carry out the second grade separation again after cyclone, simple structure simplifies the structure in the casing, helps reducing the flow resistance of gas in the casing, reduces gaseous pressure loss, guarantees the discharge pressure.

Further, the utility model discloses the compressor unit spare of another embodiment, including compressor and foretell oil separator, oil separator divides oil to the exhaust of compressor, reduces the oil mass of spouting, guarantees in lubricating oil can the reflux compressor, helps promoting compressor unit spare's performance.

Further, the utility model discloses the heat exchange system of another embodiment, including foretell compressor element, compressor element's the volume of telling oil reduces, and then gets into the fluid reduction of other parts among the heat exchange system, guarantees the lubricated effect of compressor simultaneously and reduces the interference of fluid to other parts among the heat exchange system, promotes heat exchange system's operating stability.

Still further, the heat exchange device of another embodiment of the present invention, including the above heat exchange system, has better operation stability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

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 obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an oil separator according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the section A-A in FIG. 1;

fig. 3 is a schematic cross-sectional view of an oil discharge part of an oil separator according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an oil discharge part of an oil separator according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a partition member of an oil separator according to an embodiment of the present invention;

fig. 6 is a schematic top view of a partition member of an oil separator according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of B-B of FIG. 6;

fig. 8 is a schematic structural view of an explosion state of a filter element of an oil separator according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a third filter element of an oil separator according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional structure view of C-C in fig. 9.

Reference numerals:

1: a housing; 11: an air intake structure; 12: an exhaust structure; 13: an oil discharge structure; 14: an upper housing; 15: a lower housing;

2: a partition member; 21: a first partition; 211: a shielding portion; 212: a through hole; 22: a second partition part;

3: an oil discharge part; 31: floating the control ball; 32: a valve needle; 33: a valve seat; 34: an elastic member; 35: a rotating shaft;

4: a first separation zone; 5: a second separation zone; 6: an oil return area;

7: a filter member; 71: a first filter member; 72: a filter element; 73: a second filter member; 731: a support portion; 732: spherical filtering structure.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

An embodiment of the present invention, as shown in fig. 1 to 10, provides an oil separator, including: a housing 1, a partition member 2, and an oil drain member 3. The housing 1 is configured with an air intake structure 11, an air exhaust structure 12 and an oil exhaust structure 13; the separating component 2 is arranged in the shell 1, the separating component 2 separates the shell 1 into a first separating area 4, a second separating area 5 and an oil return area 6 which are communicated, the air inlet structure 11 is arranged at the tangential direction of the shell 1 corresponding to the first separating area 4 and is communicated with the first separating area 4, and the second separating area 5 is correspondingly communicated with the exhaust structure 12; the oil discharge component 3 is arranged in the oil return area 6 and is used for adjusting the connection and disconnection between the oil discharge structure 13 and the oil return area 6.

Gaseous first separation zone 4 of tangential entering along casing 1 through inlet structure 11 carries out the cyclone of first order, and after cyclone accomplished, gaseous entering second separation zone 5 carries out the second grade separation, and the second grade is separated the back and is discharged through exhaust structure 12, and gaseous oil separation effect is promoted to the gas process two-stage discharge again. Set up oil extraction part 3 in the casing 1, through opening and closing of 3 accurate control oil extraction structures 13 of oil extraction part, effectively prevented gaseous harm that leads to the cluster gas from oil extraction structures 13 outflow. The internal structure of the shell 1 is simple, the first-stage separation is cyclone separation, the oil separation effect is good, the flow resistance to gas is small, and further the pressure loss of the gas is small.

In the embodiment and the following embodiments, the gas can be understood as an oil-gas mixture gas containing oil, oil in the oil-gas mixture gas is difficult to completely separate, and oil is carried in the gas in the oil separator.

When the oil separator of this embodiment is connected in the gas vent of compressor, oil separator divides the oil to the exhaust of compressor, can effectively separate the fluid that carries in the gas to oil separator accuracy oil return guarantees the lubricated effect of compressor. Meanwhile, the pressure loss of the gas treated by the oil separator is small, the exhaust pressure is ensured, and the operation stability of the heat exchange cycle is further ensured.

The second separation area 5 is in communication with the exhaust structure 12, and the exhaust structure 12 is connected to the housing 1 corresponding to the second separation area 5 and is in communication with the second separation area 5.

An embodiment of the partition member 2 is provided below.

In another embodiment, as shown in fig. 2 and fig. 5 to 7 in combination, the partition member 2 includes: a first partition 21 and a second partition 22, a first side of the first partition 21 and an inner wall of the case 1 defining a second separation zone 5; the second partition 22 is configured as a cylindrical structure connected to the second side of the first partition 21, the oil discharge member 3 is located in the oil return area 6 enclosed by the second partition 22, and the annular first separation area 4 is formed between the outer wall of the second partition 22 and the inner wall of the housing 1.

The partition member 2 includes a first partition 21 and a second partition 22, the first partition 21 and the second partition 22 cooperate to partition the space in the housing 1 into three partial areas, i.e., a first separation area 4, a second separation area 5, and an oil return area 6, and the partition member 2 has a simple structure, has a small resistance to gas flow, and thus has a small pressure loss of gas. The oil drain part 3 is located in the oil return area 6, the second partition 22 surrounds the oil drain part 3, the second partition 22 plays a role of protecting the oil drain part 3, the gas flow of the first separation area 4 and the second separation area 5 is prevented from interfering with the oil drain part 3, and the accuracy of the oil drain part 3 is improved. Further, the first partition 21 is a plate structure, the second partition 22 is a cylindrical structure, the first side of the first partition 21 is an upper side, the second side of the first partition 21 is a lower side, and the second partition 22 is located below the first partition 21, that is, the first separation zone 4 is located below the second separation zone 5. The cross section (cross section perpendicular to the axial direction) of the cylindrical structure of the second partition 22 is circular, elliptical or polygonal, and circular is selected as much as possible, so that the circular shape has low flow resistance to gas, and the pressure loss of gas is reduced. When the cross section of the tubular structure is circular, the tubular structure can be a cylindrical barrel or a conical barrel, the gas can be ensured to be subjected to cyclone separation, and the pressure loss of the gas is small. The first partition part 21 and the second partition part 22 are of an integrated structure or a detachable connection structure, and can be arranged according to actual needs.

The first separation area 4 is annular, that is, the cross section (the section perpendicular to the axial direction) of the first separation area 4 is annular, elliptical or annular with other shapes, so as to ensure that the gas is subjected to cyclone separation in the first separation area 4. The first separation area 4 is generally shaped like a circular ring, that is, the second partition 22 is a circular cylindrical structure, and the cross section of the inner wall of the housing 1 is circular, so that the circular ring has small flow resistance to gas, and further, the pressure loss in the gas flow process is reduced.

Further, the housing 1 includes an upper housing 14 and a lower housing 15, a first partition 21 is attached to the upper housing 14, the lower housing 15, or a position where the upper housing 14 and the lower housing 15 are butted, and a second partition 22 is located in the lower housing 15. The air inlet structure 11 and the oil discharge structure 13 are both disposed on the lower casing 15, the air discharge structure 12 is disposed on the upper casing 14, wherein the air inlet structure 11 is disposed on a side wall of the lower casing 15, and the oil discharge structure 13 is disposed at a bottom of the lower casing 15.

In another embodiment, the oil discharging component 3 includes a floating control ball 31, and the oil discharging component 3 is a valve structure that controls the opening and closing of the oil discharging structure 13 through the floating control ball 31 (see the following embodiments of the oil discharging component 3). The area of the first partition 21 corresponding to the oil discharging component 3 is configured as a shielding part 211, the shielding part 211 is used for shielding oil drops dropping from the second separation area 5 to the oil discharging component 3, and the projection area of the shielding part 211 in the vertical direction covers the floating control ball 31; the first partition 21 further includes a communicating portion provided on the outer periphery of the shielding portion 211 for communicating the first separation area 4 and the second separation area 5.

The shielding part 211 plays a role of protecting the floating control ball 31, the communication part is used for communicating the first separation area 4 and the second separation area 5 so as to facilitate the gas to pass through, two-stage separation is carried out, the gas flow can be realized through the communication part on the first separation part 21, and the structure is simple.

Specifically, the shielding portion 211 is disposed above the floating control ball 31, and plays a role of shielding the floating control ball 31, so as to prevent oil droplets from directly dropping on the floating control ball 31 to affect the precision of the floating control ball 31.

Wherein the communication parts comprise through holes 212 distributed around the communication parts, and as shown with reference to fig. 2, the gas flows through the through holes 212 towards the second separation zone 5. Of course, the communication may also comprise notches distributed around the communication, so that the gas flows through the notches towards the second separation zone 5. Here, the gap may be understood as a space between the end of the first partition 21 and the inner wall of the housing 1. The specific configuration of the communication portion is not limited to the above, and may be a communication pipe, which may be selected as needed. And, the communicating part can simultaneously include a plurality of through holes 212 and a plurality of gaps, and the structure is various, and gas is guaranteed to uniformly enter the second separation area 5 through the first separating part 21.

Further, at least one of the through holes 212 or the notches is uniformly distributed in the circumferential direction of the communicating portion to communicate the first separation area 4 and the second separation area 5, which facilitates uniform entry of the gas in the first separation area 4 into the second separation area 5. When the communication portion includes the through holes 212, the through holes 212 are uniformly distributed around the communication portion, ensuring that the gas in the first separation area 4 uniformly enters the second separation area 5 along the circumferential direction of the first partition portion 21. Similarly, when the communicating part comprises a notch, the notch surrounds the communicating part and is uniformly distributed, and the gas in the first separation area 4 is ensured to uniformly enter the second separation area 5 along the circumferential direction of the first separation part 21. When the communication portion includes the through holes 212 and the notches, the through holes 212 and the notches are uniformly distributed around the communication portion.

Further, the shape of the through hole 212 may be circular, oblong, square or other polygonal shapes, and the shape of the through hole 212 is not limited and may be selected as needed.

It should be noted that the communicating portion may further include a through hole 212 for communicating the oil return area 6 with the second separation area 5, and the through hole 212 is located above the oil return area 6, so as to ensure that the oil in the second separation area 5 flows back into the oil return area 6, and avoid interfering with the protection of the shielding portion 211 on the floating control ball 31.

In another embodiment, referring to fig. 2, an end of the second partition 22 facing away from the first partition 21 is configured to be open, so that the first separation area 4 is communicated with the oil return area 6, and the oil in the first separation area 4 enters the oil return area 6 and is discharged through the oil discharge part 3. At this time, it can be understood that the second partition 22 is an annular cylinder with two open ends, and a gap is provided between one end of the annular cylinder away from the first partition 21 and the inner wall of the housing 1 for the oil to flow through.

In another embodiment, the difference from the above embodiment is that an annular cylinder is connected to the inner wall of the housing 1, and one side of the annular cylinder near the bottom of the housing 1 is opened with an opening or a communication hole for the oil to flow into the oil return area 6.

In another embodiment, the second partition 22 includes a side wall (the side wall is a ring-shaped cylinder with two open ends) with one end connected to the second side of the first partition 21 and a bottom wall connected to the other end of the side wall, and at least one of the side wall and the bottom wall is provided with a through structure communicating with the first separation area 4. Wherein, the through structure is generally a communication hole, which ensures that the oil in the first separation area 4 can enter the oil return area 6 and then be discharged.

Further, when the second partition 22 is provided with a bottom wall, the oil discharge member 3 is communicated with the oil discharge structure 13 through the bottom wall of the second partition 22, and the bottom wall of the second partition 22 is communicated with the first separation area 4 through a communication hole, so that the oil in the first separation area 4 enters the oil return area 6 and is discharged by opening the oil discharge member 3.

In another embodiment, as shown in fig. 1 and 2, an annular first separation zone 4 is formed between the outer wall of the second partition 22 and the inner wall of the casing 1, the air inlet structure 11 is arranged tangentially to the casing 1, the air is introduced tangentially to perform cyclone separation in the annular first separation zone 4, the structure is simple, and the pressure loss of the cyclone separation on the air is small, which helps to ensure the exhaust pressure.

Wherein the second partition 22 is a cylindrical structure and the housing 1 is a cylindrical housing for cyclone separation of the gas. The first separating part 21 and the second separating part 22 are integrally formed, fixedly connected (such as welded) or detachable (such as clamped) into an integral structure, and the process is simple and convenient to assemble.

An embodiment of the oil drain member 3 is provided below.

In another embodiment, as shown in fig. 1 to 4 and 7, the oil discharging part 3 includes a floating control ball 31, a needle 32, and a valve seat 33, the floating control ball 31 is used for driving the needle 32 to switch between an open position and a closed position on the valve seat 33, and the partition part 2 is shielded above the floating control ball 31. The shielding part 211 of the first partition part 21 is used for shielding oil drops falling from the upper side of the floating control ball 31, so that the oil drops are prevented from dropping on the floating control ball 31 to influence the precision of the floating control ball 31, and the regulation and control precision of opening and closing of the oil discharging component 3 is improved.

Specifically, the floating control ball 31 is rotatably connected to the valve seat 33 through the rotating shaft 35, the valve seat 33 is connected to the position of the oil discharge structure 13, the valve needle 32 is connected to the floating control ball 31, the floating control ball 31 rotates relative to the valve seat 33 under the action of buoyancy, the floating control ball 31 drives the valve needle 32 to reciprocate relative to the valve seat 33 in the rotation process, the valve needle 32 moves to the opening position, the valve seat 33 communicates the space between the oil discharge structure 13 and the housing 1 to realize oil return, and when the valve needle 32 moves to the closing position, the valve needle 32 blocks the valve seat 33 to disconnect the space between the oil discharge structure 13 and the housing 1, and the oil return is finished. As shown in fig. 2 to 4 and 7, the floating control ball 31 floats to drive the valve needle 32 to move upward to the open position, oil return is performed, and as the oil level descends, the floating control ball 31 falls to drive the valve needle 32 to move downward to the closed position, and oil return is finished. Wherein, the needle 32 is provided with the elastic component 34 in a sleeving manner, one end of the elastic component 34 abuts against the upper end of the needle 32, the other end abuts against the valve seat 33, the needle 32 is at the closing position, the elastic component 34 is in a compression state, the floating control ball 31 is floated by the buoyancy, and the restoring force of the elastic component 34 provides the auxiliary acting force for the needle 32 to ascend to the opening position, otherwise, when the floating control ball 31 falls, the restoring force of the elastic component 34 is overcome to drive the needle 32 to recover to the closing position. The elastic member 34 is a spring, and has a simple structure and low cost. Wherein, the axis of needle 32 and the axis of pivot 35 form the contained angle and be equipped with the interval to guarantee that needle 32 can the motion regulation.

An example of the filter element 7 is provided below.

In another embodiment, as shown in fig. 2 and fig. 8 to 10, a filter element 7 is disposed in the second separation area 5, the filter element 7 includes a first filter element 71, a second filter element 73, and a filter element 72 disposed between the first filter element 71 and the second filter element 73, the first filter element 71 and the second filter element 73 are connected to an inner wall of the housing 1, the second filter element 73 is disposed on a side of the first filter element 71 facing the exhaust structure 12, and the second filter element 73 includes a spherical filter structure 732.

The oil is filtered and separated through the filtering component 7 in the second separation area 5, the filtering component 7 is combined with cyclone separation in the embodiment, or the filtering component 7 is combined with contact separation in the embodiment, so that two-stage separation can be realized, and the oil separation effect is improved.

The material of the filter element 7 can be iron material, fiber material and other oil-proof material. The structural form of the filtering component 7 is not limited to the above structure, and can be selected according to actual needs, and is not listed here. The filter member 7 is attached to the inner wall of the housing 1 or supported and fixed by the partition member 2.

Furthermore, a distance is arranged between the filtering component 7 and the separating component 2, so that a buffer area is provided for gas, and meanwhile, oil can conveniently drip downwards. A space is arranged between the filtering component 7 and the exhaust structure 12, so that a buffer space is provided for gas, and the gas exhaust resistance is reduced.

Furthermore, the first filter member 71 is disposed below the filter element 72 and fixed in the housing 1 by flanging, and plays a role of supporting the filter element 72, and the second filter member 73 is disposed above the filter element 72. The second filter 73 includes a supporting portion 731 and a spherical filtering structure 732, the supporting portion 731 is disposed below the spherical filtering structure 732, and the supporting portion 731 serves to reinforce and support the spherical filtering structure 732. The supporting part 731 and the spherical filtering structure 732 are of an integrated structure; or, the supporting part 731 and the spherical filtering structure 732 are inserted or clamped with each other, so that the installation is simple and convenient, and the disassembly and assembly are convenient.

The first filter element 71, the filter element 72, the support portion 731 and the spherical filtering structure 732 are provided with vent holes, and the aperture of each vent hole is gradually reduced towards the direction close to the oil discharge structure 13, so that the filtering effect is improved. Alternatively, the apertures of the vent holes formed in the first filter 71, the filter element 72 and the spherical filter structure 732 are sequentially reduced, and the aperture of the vent hole of the support portion 731 is larger than that of the filter element 72, so that the gas can rapidly enter the second filter 73 for oil separation.

The spherical filtering structure 732 is close to the exhaust structure 12, and the spherical filtering structure 732 is arched in the direction of the exhaust structure 12, so as to reduce the flowing speed of the gas to the exhaust structure 12 as much as possible and improve the oil separation effect. The spherical filtering structure 732 is arranged to increase the filtering area and help to improve the oil separating effect.

Specific embodiments of oil separators are provided below.

The filter element 7 is combined with the cyclone separation in the above embodiment, the air enters the annular cavity (the first separation area 4) between the lower casing 15 and the second separation part 22 from the air inlet structure 11 along the tangential direction of the lower casing 15, the air performs spiral motion to perform cyclone separation, oil drops with large mass are thrown onto the inner wall of the lower casing 15 and fall to the bottom of the casing 1 under the action of gravity, a part of incompletely separated oil moves upwards to the second separation area 5 of the upper casing 14 along with the air and is subjected to secondary separation through the filter element 7, finally the air is discharged from the exhaust structure 12 at the top of the upper casing 14, the separated oil drops fall to the bottom of the casing 1 under the action of gravity, the floating control ball 31 is floated under the action of buoyancy along with the rising of the oil level to drive the valve needle 32 to move upwards, the oil discharge structure 13 is opened to perform oil return, the oil level falls to a certain height to drive the valve needle 32 to fall and seal the oil discharge structure 13, and stopping oil return. Cyclone separation combines with filtering separation, and the two-stage separation mode improves oil separating efficiency, and the pressure loss to the gas is little in the cyclone separation process.

When the oil separators of the two embodiments are applied to the double-exhaust compressor, one path of exhaust gas in the double-exhaust compressor is directly exhausted from the air cylinder to the compressor, and the oil can not pass through structures such as a motor and an oil baffle plate in the compressor, so that the oil discharge amount of the path of exhaust gas is over 10 percent (generally up to 13 percent), and the operation of the compressor and a loop where the compressor is located can be influenced. When the existing oil separator is used for separating the channel gas, the oil output after separation is generally kept at 9%, and the operation requirement of the compressor is difficult to meet. If the way exhaust is used for oil separation through the oil separator of the embodiment, the oil output can be effectively reduced to 0.5%, the oil separation capacity is greatly improved, the pressure loss of gas can be reduced, and the exhaust pressure of the compressor assembly is ensured. The other path of exhaust gas of the compressor is discharged into the shell of the compressor from the cylinder, and the gas is subjected to oil separation through the structures such as the motor and the oil baffle plate in the compressor and then is discharged through the exhaust port in the shell.

Of course, the above embodiments are not limited to the application to the dual-discharge compressor, all the compressors can be used, and for all the compressors, a better oil separation effect can be achieved, and the pressure loss of gas in the oil separation process can be reduced.

The utility model discloses another embodiment still provides a compressor unit spare (not shown in the figure), including the compressor and the oil separator in above-mentioned embodiment, has the whole beneficial effect of above-mentioned embodiment, and the no longer repeated description here. The oil separator is connected to an exhaust port of the compressor, and separates oil from gas discharged from the compressor to reduce the amount of oil discharged.

Further, the compressor comprises two independent exhaust passages, each exhaust passage is provided with an exhaust port, and the oil separator is connected to the exhaust port directly communicated with the cylinder. When the compressor is a double-exhaust compressor, the oil separator is connected to an exhaust port directly exhausting from a cylinder of the compressor so as to separate oil from gas directly exhausted from the cylinder of the compressor, effectively reduce the oil output of the gas in the path, ensure that lubricating oil flows back into the compressor for lubrication, and further ensure the operation stability of the compressor. The other path of exhaust gas of the compressor is discharged into the shell of the compressor from the cylinder, and the gas is subjected to oil separation through the structures such as the motor and the oil baffle plate in the compressor and then is discharged through the exhaust port in the shell.

The utility model discloses a another embodiment still provides a heat exchange system (not shown in the figure), including condenser, throttling arrangement, evaporimeter and the compressor unit in the above-mentioned embodiment, has the compressor unit in the above-mentioned embodiment, then has foretell beneficial effect, and the no longer repeated description is here. The oil mass of the compressor assembly is reduced, oil entering the condenser, the throttling device and the evaporator is reduced, interference of the oil on the condenser, the throttling device and the evaporator is reduced, and the operation stability of the heat exchange system is improved.

The utility model discloses a another embodiment still provides a heat exchange equipment (not shown in the figure), including the heat exchange system of above-mentioned embodiment, heat exchange system includes condenser, throttling arrangement, evaporimeter and the compressor unit in above-mentioned embodiment, has the compressor unit in above-mentioned embodiment, then has foretell beneficial effect, and the no longer repeated description here.

The heat exchange equipment can be refrigeration equipment such as a refrigerator, an ice chest, an air conditioner and the like, and can also be equipment such as a dryer, a washing machine, a heat pump water heater, a heat pump clothes dryer or a heat pump dish washer and the like. Of course, the heat exchange device may be other devices having a heat exchange system, which is not listed here.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. An oil separator, comprising:

the separation component is arranged in the shell and used for separating the shell into a first separation area, a second separation area and an oil return area which are communicated, the air inlet structure is arranged at the tangential direction of the shell corresponding to the first separation area, the air inlet structure is communicated with the first separation area, and the exhaust structure is correspondingly communicated with the second separation area;

2. The oil separator of claim 1, wherein the partition member comprises:

the second separating part is of a cylindrical structure connected to the second side of the first separating part, the second separating part surrounds the oil return area, and the annular first separating area is formed between the outer wall of the second separating part and the inner wall of the shell.

3. An oil separator according to claim 2,

the oil discharge part comprises a floating control ball;

the first partition portion includes:

4. The oil separator of claim 3, wherein the communication includes at least one of through holes or indentations distributed around the communication.

5. An oil separator according to claim 2,

one end of the second partition part, which is far away from the first partition part, is set to be an open structure;

or, the second partition part comprises a side wall with one end connected to the second side of the first partition part and a bottom wall connected to the other end of the side wall, and at least one of the side wall and the bottom wall is provided with a through structure communicated with the first separation area.

6. The oil separator according to any one of claims 1 to 5 wherein a filter element is provided in said second separation zone, said filter element comprising a first filter element, a second filter element and a filter element disposed between said first and second filter elements, said first and second filter elements being attached to an inner wall of said housing, said second filter element being located on a side of said first filter element facing said exhaust structure, said second filter element comprising a spherical filter structure.

7. The oil separator according to any one of claims 1 to 5, wherein said oil discharge member includes a floating ball for driving the needle to switch between an open position and a closed position on the valve seat, a needle, and a valve seat, and said partition member is shielded above the floating ball.

8. A compressor assembly comprising a compressor and an oil separator according to any one of claims 1 to 7 connected to a discharge port of the compressor.

9. The compressor assembly of claim 8, wherein the compressor includes two separate discharge passages, each discharge passage providing the discharge port, the oil separator being connected to the discharge port in direct communication with the cylinder.

10. A heat exchange apparatus comprising a heat exchange system including a condenser, a throttling device, an evaporator and a compressor assembly according to claim 8 or 9.