CN113405286A

CN113405286A - Oil separator, condenser and refrigeration plant

Info

Publication number: CN113405286A
Application number: CN202110815959.0A
Authority: CN
Inventors: 劳逸桁; 胡东兵; 胡海利; 王小勇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-09-17

Abstract

The disclosure relates to the technical field of refrigeration, in particular to an oil separator, a condenser and refrigeration equipment. The oil separator includes: the cylinder body is internally provided with an air inlet cavity and an air outlet cavity which are arranged side by side along a first direction and are communicated with each other; and the separating device is arranged in the gas outlet cavity and comprises at least one of a gas homogenizing baffle device and a filtering device, the gas homogenizing baffle device performs gas homogenizing and/or baffling on gas, and the filtering device comprises a filter screen. Based on this, can effectively improve oil-gas separation efficiency.

Description

Oil separator, condenser and refrigeration plant

Technical Field

The disclosure relates to the technical field of refrigeration, in particular to an oil separator, a condenser and refrigeration equipment.

Background

The refrigeration oil in the refrigeration equipment plays a role in lubricating and cooling the work-doing parts. Because the refrigeration oil is most of media mutually soluble with the refrigerant, the refrigeration oil inevitably leaves the compressor along with the refrigerant and enters the pipeline, the evaporator and the condenser in the process of participating in the refrigeration cycle, and is deposited in the condenser and the evaporator in a liquid oil drop form. In the case of the quantitative injection of the refrigerant oil, such a deposition phenomenon may cause a vicious failure such as oil shortage of the compressor and burning of components in the compressor due to the temperature rise. Meanwhile, excessive refrigerating oil is adhered to the surface of the heat exchange pipe wall, so that the heat exchange efficiency of the heat exchanger can be reduced, the refrigerating effect of the unit is reduced, the energy consumption is increased, and the unit can perform fault alarm under severe conditions.

In order to solve the problem caused by oil deposition, an oil separator is generally disposed in the refrigeration equipment to separate oil from gaseous refrigerant.

During use, the separation efficiency of the oil separator is still to be improved.

Disclosure of Invention

One technical problem to be solved by the present disclosure is: the oil-gas separation efficiency is improved.

In order to solve the above technical problem, the present disclosure provides an oil separator, including:

the cylinder body is internally provided with an air inlet cavity and an air outlet cavity which are arranged side by side along a first direction and are communicated with each other; and

the separating device is arranged in the gas outlet cavity and comprises at least one of a gas homogenizing baffle device and a filtering device, the gas homogenizing baffle device performs gas homogenizing and/or baffling on gas, and the filtering device comprises a filter screen.

In some embodiments, the gas homogenizing baffle deflects the gas in at least two stages.

In some embodiments, the gas homogenizing baffle comprises a first baffle plate that deflects the gas.

In some embodiments, the first baffle plate is provided with a first vent hole, so that the first baffle plate can also homogenize gas.

In some embodiments, the first vent hole is a square hole.

In some embodiments, the first vent hole is provided with a sloping plate which is arranged obliquely to perform oil-gas separation by colliding with gas flowing out from the first vent hole.

In some embodiments, the swash plate is configured to be at least one of:

the inclination angle delta of the inclined plate is 45-55 degrees;

the length L of the inclined plate is 0.6 times of the width W of the inclined plate;

the width W of the inclined plate is 6-8 times of the thickness of the inclined plate;

the length L of the inclined plate is the size of the inclined plate along the inclined direction, and the width W of the inclined plate is the size of the inclined plate perpendicular to the inclined direction and the thickness direction.

In some embodiments, the first baffle plate has a first portion and a second portion, the first portion and the second portion being arranged side by side along a first direction, the first portion being provided with the first vent hole, the second portion not being provided with the first vent hole.

In some embodiments, the open area of the first baffle plate is 1/4 of the total area of the first baffle plate.

In some embodiments, the first baffle plate comprises a first plate and a second plate, the first plate and the second plate being connected at an angle.

In some embodiments, the angle A between the first plate and the second plate is 100-165 deg.

In some embodiments, the vapor-homogenizing baffle device includes two first baffles arranged side-by-side in a first direction and spaced apart from each other such that a vent flow passage is formed between the two first baffles.

In some embodiments, the gas-equalizing baffle device includes a second baffle plate spaced apart from the first baffle plates and disposed upstream of the first baffle plates, the second baffle plate covering the gas-venting flow passage and having a baffle opening with a sidewall of the gas-outlet chamber in the first direction.

In some embodiments, the second baffle plate is provided with a second vent hole, so that the second baffle plate also homogenizes the gas.

In some embodiments, the second vent holes of the second baffle plate are divided into at least two hole groups, and the at least two hole groups are sequentially arranged along the direction from the air inlet cavity to the air outlet cavity, and the hole diameter is gradually reduced.

In some embodiments, the aperture diameter of at least two sets of holes decreases by a difference of 2mm in the direction from the inlet chamber to the outlet chamber.

In some embodiments, the minimum pore diameter is 6mm in at least two pore groups.

In some embodiments, the total flow area S of all the second vent holes on the second baffle plate_aGreater than or equal to the flow area S of the baffling opening₁。

In some embodiments, the air equalizing and deflecting device includes a third flow deflecting plate, the third flow deflecting plate is spaced apart from the two first flow deflecting plates and disposed downstream of the two first flow deflecting plates, and the third flow deflecting plate shields the air flow passage and has a gap with a sidewall of the air outlet cavity along the first direction.

In some embodiments, no vent is provided on the third baffle.

In some embodiments, the third baffle plate shields the open area of the two first baffle plates.

In some embodiments, the gas homogenizing baffle arrangement comprises a first gas homogenizing plate disposed downstream of the third baffle plate.

In some embodiments, the first gas distribution plate is provided with two hole units, the two hole units are symmetrically distributed about a longitudinal center line of the first gas distribution plate and each hole unit comprises at least two hole groups, each hole group comprises a gas distribution hole, at least two hole groups in the same hole unit are sequentially arranged along a direction from the longitudinal center line to the edge of the first gas distribution plate, the hole diameter is gradually increased, and the longitudinal center line of the first gas distribution plate is the center line of the first gas distribution plate, which is perpendicular to the first direction.

In some embodiments, the number of hole groups in a hole unit is less than or equal to 4.

In some embodiments, the filter device comprises a first filter disposed at an inlet of the outlet chamber for filtering gas flowing from the inlet chamber into the outlet chamber, and a second filter disposed at an outlet of the outlet chamber for filtering gas before flowing out from the outlet chamber.

In some embodiments, the separation device comprises a gas homogenizing baffle, and the first and second screens are disposed upstream and downstream of the gas homogenizing baffle, respectively.

In some embodiments, the first filter screen is disposed at a baffle port between the second baffle plate of the gas-equalizing baffle device and a side wall of the gas outlet chamber adjacent to the side of the gas inlet chamber, and filters gas flowing from the inlet of the gas outlet chamber to two baffle ports between the second baffle plate and the side wall of the gas outlet chamber in the first direction.

In some embodiments, the gas homogenizing baffle arrangement includes a second gas homogenizing plate located on the side of the first screen remote from the gas inlet chamber and between the third baffle plate and the first screen such that gas flows through the second gas homogenizing plate first during flow from the first screen to the baffle opening between the second baffle plate and the side wall of the gas outlet chamber remote from the gas inlet chamber.

In some embodiments, a second screen is disposed downstream of the first gas homogenizing plate of the gas homogenizing baffle device to filter gas flowing from the first gas homogenizing plate to the outlet of the gas outlet chamber.

In some embodiments, the oil separator includes an oil baffle disposed below the inlet and outlet chambers and forming an oil reservoir chamber with the bottom wall of the cartridge.

The present disclosure also provides a condenser including a housing and an oil separator of embodiments of the present disclosure.

The present disclosure also provides a refrigeration apparatus including a compressor and an oil separator of an embodiment of the present disclosure.

Based on each embodiment of this disclosure, can effectively improve oil-gas separation efficiency.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural view of an oil separator according to an embodiment of the disclosure.

FIG. 2 is a schematic flow path diagram of an oil separator according to an embodiment of the disclosure.

Fig. 3 is a schematic perspective view of a first baffle plate in an embodiment of the disclosure.

Fig. 4 is a front view of fig. 3.

Fig. 5 is a right side view of fig. 3.

Fig. 6 is a schematic structural diagram of a second baffle plate in an embodiment of the disclosure.

Fig. 7 is a schematic structural diagram of a first gas distribution plate in an embodiment of the present disclosure.

Description of reference numerals:

10. an oil separator;

1. a barrel; 11. a first end plate; 12. a second end plate; 13. enclosing plates; 14. a partition plate; 141. a notch;

2. a separation device; 21. a filtration device; 211. a first filter screen; 212. a second filter screen; 22. a gas-equalizing deflection device; 221. a first baffle plate; 221a, a first vent hole; 221b, a sloping plate; 221c, a first portion; 221d, a second portion; 221e, a first plate body; 221f, a second plate body; 221g, a ventilation flow channel; 222. a second baffle plate; 222a and a second vent hole; 222b, hole groups; 222c, a baffle port; 223. a third baffle plate; 224. a first gas-homogenizing plate; 224a, a hole unit; 224b, gas homogenizing holes; 224c, longitudinal centerline; 225. a second gas-homogenizing plate;

3. an oil baffle plate; 31. an oil leakage port;

4. an air inlet pipe;

51. an air inlet cavity; 52. an air outlet cavity; 53. an oil storage chamber;

x, a first direction; y, a second direction; z, up-down direction.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without any inventive step, are intended to be within the scope of the present disclosure.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are presented only for the convenience of describing and simplifying the disclosure, and in the absence of a contrary indication, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present disclosure, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present disclosure.

In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.

Refrigeration equipment such as an air conditioner generally includes a compressor, a condenser, an evaporator, an expansion and throttling device, an oil separator, and the like. The compressor, the condenser, the evaporator and the expansion throttling device are connected to form a refrigerant circulating system, so that the refrigerating or heating effect is realized. The oil separator is used for separating oil from gas of an oil-gas mixture flowing to the condenser from the compressor, and separating oil from a refrigerant to prevent refrigerating oil carried in the exhaust of the compressor from entering the condenser and the evaporator so as to prevent the oil from depositing to influence the overall energy efficiency and normal operation of the unit.

Oil separators typically include both internal and external configurations. Different from the external oil separator, the internal oil separator is arranged inside the shell of the condenser, and the occupied space is small.

However, the separation efficiency of both the internal oil separator and the external oil separator needs to be improved. When separation efficiency is lower, often need satisfy higher separation demand through modes such as increase part and increase size, but this will increase cost and space and occupy, and it is higher to lead to whole machine cost, and the size is great, influences processing transportation convenience and market competition.

In view of the above, the present disclosure provides an oil separator having high separation efficiency.

Fig. 1-7 illustrate exemplary configurations of oil separators according to the present disclosure.

For convenience of description, the orientation is defined by coordinate axes in fig. 1. Wherein the coordinate axis Z represents the up-down direction. The coordinate axis X represents a first direction, is perpendicular to the up-down direction Z, and is a first horizontal direction. The coordinate axis Y represents a second direction, perpendicular to the up-down direction Z and the first direction X, which is a second horizontal direction.

Referring to fig. 1-7, in an embodiment of the present disclosure, an oil separator 10 includes a cartridge 1 and a separation device 2.

An air inlet cavity 51 and an air outlet cavity 52 are arranged inside the cylinder body 1. The inlet chamber 51 and the outlet chamber 52 are arranged side by side along the first direction X and communicate with each other.

The separating apparatus 2 is disposed in the outlet chamber 52 and includes at least one of a vapor homogenizing baffle 22 and a filtering apparatus 21. The homogenizing baffle 22 homogenizes and/or deflects the gas for oil-gas separation based on impingement and inertial separation. The filtering device 21 includes a strainer to perform oil-gas separation based on filtering action.

Through set up gas-homogenizing baffle 22 and/or filter 21 in giving vent to anger chamber 52, can carry out oil-gas separation to the oil-gas mixture at the in-process that the gas stream goes through gas-out chamber 52, reduce the oil mass that the refrigerant carried, alleviate the adverse effect of fluid deposit to whole machine efficiency and operation security and reliability.

The gas homogenizing baffle 22 will be described first.

In some embodiments, the gas homogenizing baffle 22 comprises at least two stages of baffles to provide at least two stages of deflection of the gas. For example, in some embodiments, the gas homogenizing baffle 22 includes three stages of baffles for three stages of baffling the gas.

The deflection is to change the direction of the gas flow, and the flow is zigzag. Because the baffling in-process, the flow path extension of gas, the velocity of flow reduces, and the collision increases, consequently, can reduce the gas degree of carrying oil to realize the oil-gas separation effect.

When carrying out two-stage baffling at least, because compare with the condition of only carrying out one-level baffling, the baffling number of times increases, and the baffling effect strengthens, consequently, can improve separation efficiency, realizes better oil-gas separation effect. And the separation efficiency is improved, which is beneficial to reducing the occupied space.

As an embodiment of the gas homogenizing baffle 22 having a baffle function, referring to fig. 1 to 2, the gas homogenizing baffle 22 includes a first baffle 221, and the first baffle 221 baffles gas. Specifically, as shown in fig. 1-2, in some embodiments, the vapor-homogenizing baffle 22 includes two first baffle plates 221, the two first baffle plates 221 being arranged side-by-side and spaced apart from each other along the first direction X such that a vent flow channel 221g is formed between the two first baffle plates 221.

Based on the provision of the two first baffle plates 221, see fig. 1-2, in some embodiments, the vapor diversion device 22 further comprises a second baffle plate 222. The second baffle plate 222 is disposed upstream of the two first baffle plates 221 at a distance from the two first baffle plates 221. The second baffle 222 shields the air channel 221g, and a baffle port 222c is formed between the second baffle and the sidewall of the air outlet cavity 52 along the first direction X.

Based on the above arrangement, a baffling channel is formed between the second baffle 222 and the two first baffles 221, so that a first-stage baffling of gas can be realized. As shown in fig. 2, the gas entering the outlet chamber 52 from the inlet chamber 51 can flow to the space between the second baffle plate 222 and the two first baffle plates 221 via the baffle openings 222c in the outward flowing process, and the baffle collision occurs in the corresponding process, so as to realize oil-gas separation. After passing through the baffle channel between the second baffle plate 222 and the two first baffle plates 221, as shown in fig. 2, the gas can flow out of the vent channel 221g between the two first baffle plates 221 and continue to flow downstream.

Additionally, based on the provision of two first baffle plates 221, see fig. 1-2, in some embodiments, vapor diversion device 22 includes a third baffle plate 223. The third baffle 223 is disposed downstream of the two first baffles 221 at a distance from the two first baffles 221. The third baffle plate 223 shields the ventilation channel 221g, and a gap is formed between the third baffle plate and the sidewall of the air outlet cavity 52 along the first direction X.

Based on the above arrangement, a baffling channel is formed between the third baffle 223 and the two first baffles 221, so that a first-stage baffling of gas can be realized. Referring to fig. 2, the gas flowing out of the ventilation channel 221g between the two first baffle plates 221 can be blocked by the third baffle plate 223 to be deflected and enter the space between the third baffle plate 223 and the two first baffle plates 221, so as to realize the oil-gas collision separation. As shown in fig. 2, the gas having collided and separated by the third baffle 223 can flow out from the gap between the third baffle 223 and the sidewall of the gas outlet chamber 52 in the first direction X, and flow downstream.

In the case that the gas-equalizing deflection device 22 includes the two first deflection plates 221, the second deflection plate 222, and the third deflection plate 223 at the same time, referring to fig. 1-2, one-stage deflection can be formed between the two first deflection plates 221 and the second deflection plate 222, and between the two first deflection plates 221 and the third deflection plate 223, respectively, so that the gas-equalizing deflection device 22 can perform two-stage continuous deflection on gas, and oil drops can be separated sufficiently and efficiently.

Next, the structure of the first, second, and

third baffle plates

221, 222, and 223 will be further described.

The structure of the first baffle plate 221 will be described first.

Fig. 3 to 5 exemplarily show the structure of the first baffle plate 221.

Referring to fig. 3-5, in some embodiments, the first baffle plate 221 is provided with a first vent hole 221a, such that the first baffle plate 221 also homogenizes the gas. At this time, the first baffle 221 not only can baffle the gas, but also can make the gas distribution more uniform, so that the purpose of baffling separation can be achieved, and the flow equalization effect can be also considered. The first baffle 221 integrating the baffling function and the gas-equalizing function is beneficial to further improving the separation efficiency and improving the separation effect. Meanwhile, the first baffle 221 has both baffling and gas-equalizing functions, and a gas-equalizing member is not required to be additionally arranged on the basis of the first baffle 221 to realize a corresponding gas-equalizing function, so that the number of parts is reduced, and the occupied space is saved. The first baffle 221 having both the baffling and the gas-equalizing functions may be referred to as a first gas-equalizing baffle.

As shown in fig. 3-5, in some embodiments, the first baffle 221 has a first portion 221c and a second portion 221 d. The first portion 221c and the second portion 221d are arranged side by side in the first direction X. The first portion 221c is provided with a first vent hole 221 a. The first vent hole 221a is not provided in the second portion 221 d. At this time, the first baffle 221 is not entirely open, but only partially open, that is, the first baffle 221 is a partially open plate with a partially open design. For example, when the first portion 221c and the second portion 221d have the same area, the first baffle 221 is a half-open plate with a half-open design, and the open area and the closed area (i.e., the non-open area) each occupy half of the total area.

When the first baffle 221 is designed to have a partial opening, referring to fig. 2, when the gas flows through the closed area of the first baffle 221, the gas only collides with the first baffle 221, but does not pass through the first baffle 221, and in the process, the gas can achieve more sufficient baffle collision; when the gas flows through the opening region of the first baffle plate 221, the gas can pass through the first baffle plate 221 and be uniformly distributed under the action of the first vent holes 221 a.

It can be seen that, the design of the local opening of the first baffle plate 221 allows the first baffle plate 221 to organically integrate the baffling function and the gas-equalizing function together, so as to fully perform gas-equalizing and baffling, thereby realizing a more efficient oil-gas separation process.

As an example, the opening area of the first baffle plate 221 may be 1/4 of the total area of the first baffle plate 221, that is, the total flow area of all the first vent holes 221a on the first baffle plate 221 is 1/4 of the total area of the first baffle plate 221.

Referring to fig. 2, in the case that the gas homogenizing baffle 22 includes the third baffle 223, the opening area of the first baffle 221 can be located in the shielding range of the third baffle 223 and shielded by the third baffle 223, so that the gas homogenizing action of the first baffle 221 can be completely subjected to the further baffling action of the third baffle 223, and the oil-gas separation efficiency is improved.

Additionally, as shown in fig. 3, in some embodiments, the first vent 221a is provided with a sloping plate 221 b. The swash plate 221b is obliquely arranged to perform oil-gas separation by colliding with the gas flowing out from the first vent hole 221 a. At this time, the first vent hole 221a becomes a hole with a folded edge.

With this arrangement, the gas flowing out of the first vent hole 221a impinges on the swash plate 221b, and the oil is separated from the refrigerant during impingement. It can be seen that the provision of the swash plate 221b can increase the collision separation efficiency, and therefore, the separation effect can be further improved.

In order to achieve a better separation effect based on the sloping plate 221b, referring to fig. 3-4, in some embodiments the sloping plate 221b is configured as at least one of:

the inclination angle delta of the inclined plate 221b is 45-55 degrees;

the length L of the swash plate 221b is 0.6 times the width W of the swash plate 221 b;

the width W of the swash plate 221b is 6 to 8 times the thickness of the swash plate 221 b.

Here, as shown in fig. 4, the length L of the swash plate 221b is the dimension of the swash plate 221b in the inclination direction, and, as shown in fig. 3, the width W of the swash plate 221b is the dimension of the swash plate 221b perpendicular to the inclination direction and the thickness direction.

When the above parameters are used, the collision separation effect of the swash plate 221b is better.

In the above embodiments, referring to fig. 3, the first vent hole 221a may be a square hole. Compared with holes of other shapes such as a circular hole, the square hole is lower in processing difficulty, and therefore the first vent hole 221a is designed to be a square hole, and processing cost is saved. In addition, when the first vent hole 221a is a square hole, the edge of the first vent hole 221a is square, which is reliable and durable, and facilitates the installation of the inclined plate 221 b.

Additionally, referring to fig. 3 and 5, in some embodiments, first baffle 221 includes a first panel 221e and a second panel 221f, with first panel 221e and second panel 221f being connected at an angle. Specifically, in some embodiments, the angle A between the first plate 221e and the second plate 221f is 100-165.

Based on the above arrangement, the first baffle 221 is not a flat plate, but a bending plate, and the inclination angle between the first plate 221e and the second plate 221f can be baffled to form angle oil drip, and gas can more uniformly pass through the first vent 221a, so that the gas equalizing and baffling effect is improved, and oil can be more sufficiently separated.

The structure of the second baffle 222 will be described next.

Fig. 6 exemplarily shows the structure of the second baffle plate 222.

Referring to fig. 6, in some embodiments, the second baffle plate 222 is provided with second ventilation holes 222a, so that the second baffle plate 222 also homogenizes the gas. At this time, the second baffle 222 not only can baffle gas, but also can make gas distribution more uniform, and can achieve the purpose of baffling separation and also give consideration to the flow equalization effect. The second baffle 222 integrating the baffling function and the gas-equalizing function is beneficial to further improving the separation efficiency and the separation effect. Meanwhile, the second baffle plate 222 has both baffling and gas-equalizing functions, and a gas-equalizing piece is not required to be additionally arranged on the basis of the second baffle plate 222 to realize a corresponding gas-equalizing function, so that the number of components is reduced, and the occupied space is saved. The second baffle 222 having both baffling and gas-equalizing functions can be referred to as a second gas-equalizing baffle.

Wherein, in order to achieve better baffling and air-balancing effects, the total flow area S of all the second vent holes 222a on the second baffle plate 222_aMay be greater than or equal to the flow area S of the baffle 222c₁。

In addition, as shown in fig. 6, in some embodiments, the second vent holes 222a of the second baffle 222 are circular holes, so as to achieve a better air-equalizing effect.

Also, referring to fig. 6, in some embodiments, the second vent holes 222a of the second baffle plate 222 are divided into at least two (e.g., 3-5) hole groups 222b, and the at least two hole groups 222b are sequentially arranged along the direction from the inlet cavity 51 to the outlet cavity 52, and the hole diameter is gradually reduced.

Based on the above arrangement, the second baffle 222 is a tapered circular hole design, in which at least two kinds of holes with different diameters coexist, and the holes with different diameters are distributed from large to small in the fluid flowing direction (as shown by the arrows in fig. 6).

Since the gas flow rate increases with decreasing pore size and the pressure decreases with increasing gas flow rate, that is, the pore size is larger, the gas flow rate is smaller and the pressure is higher, therefore, the pore size of each hole group 222b arranged in sequence along the gas flow direction on the second baffle plate 222 is designed to decrease in sequence, so that the pressure in the corresponding area of the hole groups 222b decreases gradually, and the local differential pressure can guide the gas to flow towards the baffle port 222c located at the tail of the second baffle plate 222 (i.e., the side of the second baffle plate 222 away from the gas inlet cavity 51), so that more gas flows are baffled and separated at the corresponding baffle port 222 c.

Therefore, the second baffle 222 adopting the gradual change circular hole design can enhance the collision separation by controlling the flow velocity of the refrigerant and influencing the pressure difference, thereby further improving the separation efficiency and the separation effect.

Wherein, as an example, the aperture of each hole group 222b may gradually decrease by a difference of 2mm in the direction from the inlet chamber 51 to the outlet chamber 52. For example, referring to fig. 6, in some embodiments, three hole sets 222b are provided on the second baffle plate 222, and the three hole sets 222b are respectively a first hole set, a second hole set and a third hole set sequentially arranged along a direction from the inlet cavity 51 to the outlet cavity 52 (also a gas flow direction indicated by an arrow in fig. 6), wherein the hole diameters of the second through holes 222a in the first hole set are all 10mm, the hole diameters of the second through holes 222a in the second hole set are all 8mm, and the hole diameters of the second through holes 222a in the third hole set are all 6 mm. At this time, the minimum aperture diameter of each hole group 222b of the second baffle plate 222 is 6 mm.

The structure of the third baffle 223 will be further described finally.

Referring to fig. 1, in some embodiments, no vent holes are provided on the third baffle 223. At this time, the third baffle 223 is a fully closed baffle, which only deflects the flow, but does not flow uniformly, so that the baffling and separating effects can be better achieved.

As shown in fig. 1 and 2, the third baffle 223 not only shields the ventilation channel 221g between the two first baffles 221, but also extends to both sides to shield the open areas of the two first baffles 221, so that the third baffle 223 can not only baffle the gas flowing out of the ventilation channel 221g, but also baffle the gas flowing out of the first ventilation holes 221a of the two first baffles 221, thereby achieving a complete and sufficient baffle separation of the gas flowing through the two first baffles 221 and obtaining a good oil-gas separation effect.

To achieve better oil-gas separation, referring to fig. 1-2, in some embodiments, the gas homogenizing baffle 22 includes a first gas homogenizing plate 224, and the first gas homogenizing plate 224 is disposed downstream of the third baffle 223. Like this, first gas distribution plate 224 can flow equalize the gas after third baffling board 223 baffling, makes gas distribution more even, is convenient for subsequent oil-gas separation. In addition, the first air-distributing plate 224 can remove a part of oil drops, so that the oil-gas separation effect is realized.

Fig. 7 further illustrates the structure of the first gas distribution plate 224. Referring to fig. 7, in some embodiments, the first gas distribution plate 224 is provided with two hole units 224a, and the two hole units 224a are symmetrically distributed about a longitudinal center line 224c (i.e., a center line perpendicular to the first direction X) of the first gas distribution plate 224 and each include at least two hole groups 222 b. The first gas distribution plate 224 has gas distribution holes 224b in each hole group 222 b. Along the direction from the longitudinal center line 224c to the edge of the first gas distribution plate 224 (i.e., the edge of the first gas distribution plate 224 along the first direction X), the hole groups 222b in the same hole unit 224a are arranged in sequence, and the hole diameter is gradually increased, for example, in the same hole unit 224b, the minimum hole diameter is 6mm, the hole diameters between adjacent hole groups 222b are increased by 2mm difference, and are sequentially 8mm and 10mm.

Based on above-mentioned setting, first gas homogenizing plate 224 adopts the design of symmetry trompil, the distribution in hole is from the center to both sides diffusion, and be in the aperture of the hole of center with one side by the center towards edge (arrow direction in fig. 7) grow gradually, thus, first gas homogenizing plate 224 can control the gas velocity of flow, influence pressure differential, the air current after the baffle of guide through third baffle 223 both sides diffuses to the middle part diffusion along first direction X of first gas homogenizing plate 224, and then realize better baffling gas homogenizing effect, make the gas after the baffle of third baffle 223 can be fully through the effect of flow equalizing of first gas homogenizing plate 224, realize distributing more evenly.

The number of the hole groups 222b in the hole unit 224a may be less than or equal to 4, that is, the hole unit 224a may include 2 to 4 hole groups 222b, so as to achieve a better gas-homogenizing effect based on a lower cost.

Referring to fig. 1 and 2, in order to achieve a better air-equalizing effect, a first air-equalizing plate 224 may be disposed downstream of the third baffle 223, and a second air-equalizing plate 225 may be disposed upstream of the second baffle 222, which will be described below with reference to the filtering device 21.

The filter device 21 will be further described below.

Referring to fig. 1 and 2, in some embodiments, the filter apparatus 21 includes a first screen 211 and a second screen 212. A first screen 211 is arranged at the inlet of the outlet chamber 52 for filtering the gas flowing from the inlet chamber 51 into the outlet chamber 52. A second screen 212 is disposed at the outlet of the exit chamber 52 to filter the gas before it exits the outlet of the exit chamber 52.

Based on the above arrangement, the filtering device 21 includes more than one filter screen, but at least two filter screens, and at least two stages of filtering separation can be performed, so as to realize better oil-gas separation effect.

Moreover, the first filter screen 211 and the second filter screen 212 are used for filtering the gas at the inlet and the outlet of the gas outlet cavity 52, so that the gas outlet cavity is convenient to be matched with the gas equalizing deflection device 22, and a better oil-gas separation effect is realized.

The coupling of the first screen 211 to the vapor homogenizing baffle 22 will be described first.

Referring to fig. 1 and 2, in the embodiment in which the separation device 2 comprises the homogenizing valve 22, a first sieve 211 and a second sieve 212 are arranged upstream and downstream of the homogenizing valve 22, respectively. Like this, first filter screen 211 can filter and disperse gas between gas flow direction gas-homogenizing baffle device 22, when realizing preliminary oil-gas separation, makes the gas after the diffusion can be by gas-homogenizing baffle device 22 gas-homogenizing and/or baffling more fully.

For example, referring to fig. 1 and 2, in some embodiments, the first screen 211 is disposed at the baffle port 222c between the second baffle plate 222 of the gas-homogenizing baffle 22 and the sidewall of the gas outlet chamber 52 near the side of the gas inlet chamber 51 to filter the gas flowing from the inlet of the gas outlet chamber 52 to the two baffle ports 222c between the second baffle plate 222 and the sidewall of the gas outlet chamber 52 along the first direction X.

Based on the above arrangement, the gas entering the gas outlet cavity 52 can be filtered and diffused by the first filter 211, and then flows to the two baffle ports 222c on both sides of the second baffle plate 222c for baffling. Wherein, the diffusion of first filter screen 211, can provide the favourable condition that scatters of diffusing for the homogeneous gas and baffling effect of homogeneous gas baffling device 22, guide gaseous reposition of redundant personnel flow to two baffling mouths 222c, make two baffling mouths 222c departments all have more gas, be convenient for full play homogeneous gas baffling device 22 is at the baffling effect of two baffling mouths 222c departments, and simultaneously, the filter effect of first filter screen 211, can realize the preseparation before homogeneous gas baffling device 22, be convenient for homogeneous gas baffling device 22 carries out further oil-gas separation to the gas after preliminary filtration, realize better oil-gas separation effect.

Further, referring to fig. 1 and 2, in some embodiments, the gas homogenizing baffle 22 includes a second gas homogenizing plate 225, the second gas homogenizing plate 225 is located on a side of the first screen 211 away from the inlet chamber 51 and between the third baffle plate 223 and the first screen 211, such that gas flows through the second gas homogenizing plate 225 during flowing from the first screen 211 to the baffle opening 222c between the second baffle plate 222 and the side wall of the outlet chamber 52 away from the inlet chamber 51. Like this, the gas after first filter screen 211 filters can be earlier through the even gas effect of second gas board 225 when flowing to a baffling mouth 222c far away from gas outlet cavity 52 for gas can more evenly flow to the baffling mouth 222c far away from gas outlet cavity 52, baffling more fully, realizes better oil-gas separation effect.

The coupling of the second screen 212 to the vapor-homogenizing baffle 22 will now be described.

Referring to fig. 1 and 2, in some embodiments, a second screen 212 is disposed downstream of the first gas homogenizing plate 224 of the gas homogenizing baffle 22 to filter the gas flowing from the first gas homogenizing plate 224 to the outlet of the gas outlet chamber 52. Therefore, after being equalized by the first air equalizing plate 224, the air can uniformly flow to the second filter screen 212 and is filtered by the second filter screen 212, so that the filtering effect of the second filter screen 212 can be more fully exerted, and a better oil-gas separation effect is realized.

The embodiments shown in fig. 1-7 are further described below.

As shown in fig. 1 to 7, in this embodiment, the oil separator 10 is a built-in oil separator, which is provided in a casing of a condenser, and includes a drum 1 and a separating device 2.

Wherein, the cylinder 1 comprises a first end plate 11, a second end plate 12 and a coaming 13. The first end plate 11 and the second end plate 12 are arranged opposite to each other along the first direction X, and each have a substantially fan shape. The axial direction of the first end plate 11 and the second end plate 12 coincides with the first direction X. The shroud 13 is connected between the first end plate 11 and the second end plate 12, and encloses an inner space of the oil separator 10 together with the first end plate 11, the second end plate 12, and a shell of the condenser.

As shown in fig. 1, the cylinder 1 is provided with a partition 14 and an oil baffle 3 inside. The partition 14 and the oil baffle plate 3 partition the inner space of the cylinder 1 so that the cylinder 1 has an air inlet chamber 51, an air outlet chamber 52 and an oil storage chamber 53 inside.

Wherein the partition 14 is located between the first end plate 11 and the second end plate 12 along the first direction X and partitions the inner space of the cylinder 1 such that the cylinder 1 has an inlet chamber 51 and an outlet chamber 52 arranged side by side along the first direction inside. The inlet chamber 51 and the outlet chamber 52 are located on both sides of the partition 14 in the first direction X, i.e., on the right and left sides of the partition 14 in fig. 1, respectively. At this time, the partition 14 and the second end plate 12 become two side walls of the outlet chamber 52 along the first direction X, wherein the partition 14 is a side wall of the outlet chamber 52 close to the inlet chamber 51, and the second end plate 12 is a side wall of the outlet chamber 52 far from the inlet chamber 51.

The compressor exhaust flows to the outlet cavity 52 through the inlet cavity 51 and finally flows out of the outlet cavity 52 to the outside of the cylinder, and continues to participate in the refrigeration cycle.

In order to achieve communication between the inlet chamber 51 and the outlet chamber 52, as shown in fig. 1, in this embodiment, the bottom of the partition 14 is provided with a notch 141, and the notch 141 serves as an outlet of the inlet chamber 51 and an inlet of the outlet chamber 52, communicating the inlet chamber 51 and the outlet chamber 52, so that gas (oil-gas mixture) entering the inlet chamber 51 can flow to the outlet chamber 52 via the notch 141.

The top of the inlet chamber 51 is provided with an inlet pipe 4. As shown in fig. 2, the inlet pipe 4 is arranged vertically, and guides the gas from the bottom up into the inlet chamber 51. The top of the gas outlet cavity 52 is provided with an outlet, and the gas flowing from the gas inlet cavity 51 to the gas outlet cavity 52 flows from bottom to top and finally flows out from the outlet of the gas outlet cavity 52.

The oil baffle plate 3 is arranged below the air inlet cavity 51 and the air outlet cavity 52 and is vertically spaced from the bottom wall of the barrel 1, so that an oil storage cavity 53 is formed between the oil baffle plate 3 and the bottom wall of the barrel 1. Thus, the oil reservoir chamber 53 is located below the oil baffle 3. The inlet chamber 51 and the outlet chamber 52 are both located above the oil baffle 3.

As shown in fig. 2, the gas flowing out from the inlet pipe 4 flows from top to bottom and strikes the oil baffle plate 3, in the process, on one hand, the oil baffle plate 3 can change the flow direction of the gas to make the gas flow horizontally toward one side of the gas outlet cavity 52 (i.e., toward the left in fig. 1) instead of flowing downward, and on the other hand, the oil baffle plate 3 can play a role in striking and separating to realize preliminary oil-gas separation. The separated oil flows downward through the oil leakage port 31 of the oil baffle plate 3 to the oil storage chamber 53, and the separated gas flows through the notch 141 to the gas outlet chamber 52 to be further separated by the separation device 2. As shown in fig. 1, the oil leakage port 31 may be disposed at an edge of the oil baffle 3.

The separation device 2 is disposed in the gas outlet cavity 52 and is used for performing oil-gas separation on the gas flowing into the gas outlet cavity 52. As shown in fig. 1-2, in this embodiment, the separation device 2 includes a filtering device 21 and a gas homogenizing baffle 22, and the filtering device 21 includes a first screen 211 and a second screen 212, and the gas homogenizing baffle 22 includes two first baffle plates 221, a second baffle plate 222, a third baffle plate 223, a first gas homogenizing plate 224, and a second gas homogenizing plate 225.

The second baffle 222, the two first baffles 221, the third baffle 223, the first gas-homogenizing plate 224 and the second filter screen 212 are sequentially arranged at intervals along the direction from bottom to top, the second gas-homogenizing plate 225 is arranged at the upstream of the second baffle 222, and the first filter screen 211 is arranged at the upstream of the second gas-homogenizing plate 225 and the two first baffles 221.

Specifically, the first screen 211 is disposed at the notch 141, and filters and diffuses the gas flowing into the gas outlet chamber 52 through the notch 141. The top end of the first screen 211 is substantially flush with the second baffle 222. The bottom end of the first strainer 211 extends to the upper surface of the oil deflector 3. The first filter screen 211 is a vapor-liquid filter screen, and can perform preliminary filtering on the oil-liquid mixed refrigerant.

The second gas distribution plate 225 is disposed on a side of the first screen 211 away from the intake chamber 51, i.e., the second gas distribution plate 225 is located on a left side of the first screen 211 in fig. 1 and 2. The second gas homogenizing plate 225 is vertically arranged, and the top end and the bottom end of the second gas homogenizing plate 225 are respectively approximately flush with the top end and the bottom end of the first filter screen 211, that is, the top end of the second gas homogenizing plate 225 is approximately flush with the second baffle plate 222, and the bottom end of the second gas homogenizing plate 225 extends downwards to the upper surface of the oil baffle plate 3.

The second baffle 222 is located on a side of the second gas distribution plate 225 away from the first screen 211, extends along the first direction X, and is located at a height position approximately flush with the top ends of the second gas distribution plate 225 and the first screen 211. In a direction X, two ends of the second baffle plate 222 are spaced from two sidewalls of the outlet cavity 52 to form two baffle ports 222 c. Among them, the baffle port 222c between the end of the second baffle plate 222 far from the inlet chamber 51 (i.e., the left end in fig. 1) and the sidewall of the outlet chamber 52 may be referred to as a first baffle port, and the baffle port 222c between the end of the second baffle plate 222 near the inlet chamber 51 (i.e., the right end in fig. 1) and the sidewall of the outlet chamber 52 may be referred to as a second baffle port for easy distinction. Specifically, as shown in fig. 1-2, the first baffle opening is located between the second baffle plate 222 and the second end plate 12, and the second baffle opening is located between the second baffle plate 222 and the baffle plate 14. The first baffle port is unfilled and completely open. The second baffle port is filled with a first strainer 211 and a second gas equalization plate 225.

As shown in fig. 6, the second baffle plate 222 is a full aperture plate, and has 3 aperture groups 222b, the three aperture groups 222b are sequentially arranged along the direction from the inlet cavity 51 to the outlet cavity 52, and the aperture diameters are sequentially reduced by 2mm, which are 10mm, 8mm and 6mm, respectively.

The two first baffle plates 221 are arranged above the second baffle plate 222, and each extend in the first direction X. The two first baffle plates 221 are arranged side by side along the first direction X with a space therebetween to form a ventilation flow channel 221 g. Meanwhile, in the first direction X, two first baffle plates 221 are both in contact with the side wall of the outlet chamber 52, specifically, as shown in fig. 2, two first baffle plates 221 are in contact with the second end plate 12 and the partition plate 14, respectively, wherein one first baffle plate 221 farther from the inlet chamber 51 is in contact with the second end plate 12, which extends from the second end plate 12 in the first direction X toward the inlet chamber 51, and the other first baffle plate 221 closer to the inlet chamber 51 is in contact with the partition plate 14, which extends from the partition plate 14 in the first direction X toward the outlet chamber 51.

As can be seen from fig. 1-2 and 3-5, in this embodiment, the two first baffles 221 are both V-shaped plates and are both half-perforated plates. The first portions 221c of the two first baffles 221, which are open, are far from the ventilation channel 221g relative to the second portions 221d, which are not open, i.e., the open areas of the two first baffles 221 are both facing the ventilation channel 221g, and the non-open areas are both facing away from the ventilation channel 221 g. The holes of the first portions 221c of the two first baffle plates 221 are square holes with inclined plates 221 b. The bottom end of the inclined plate 221b is connected to one side of the square hole, and the top end of the inclined plate 221b extends obliquely upward. The inclination direction of the inclined plate 221b is in the direction from the second portion 221d to the first portion 221c, so that the inclined plates 221b are each inclined toward the side where the ventilation flow channel 221g is located.

The third baffle 223 is not provided with an opening, and is disposed above the two first baffles 221 and extends along the first direction X. In the first direction X, the third baffle plate 223 extends from the first portion 221c of one first baffle plate 221 to the first portion 221c of another first baffle plate 221, so that the third baffle plate 223 shields the opening areas of the two first baffle plates 221 and the ventilation flow channel 221g between the two first baffle plates 221. Meanwhile, a space is provided between two ends of the third flow folding plate 223 along the first direction X and the sidewall of the air outlet cavity 52, specifically, a space is provided between two ends of the third flow folding plate 223 along the first direction X and the second end plate 12 and the partition plate 14.

The first air distributing plate 224 is arranged above the third flow folding plate 223, and the periphery of the first air distributing plate is in contact with the peripheral side wall of the air outlet cavity 52. Thus, the first air equalizing plate 224 shields the third baffle 223 and the space between the third baffle 223 and the sidewall of the air outlet cavity 52.

As can be seen from fig. 7, in this embodiment, two hole units 224a are disposed on the first gas distribution plate 224. The two hole units 224a are symmetrically arranged about a longitudinal center line 224c of the first gas distribution plate 224. Each hole unit 224a is provided with 3 hole groups 222b, the hole diameters of the 3 hole groups 222b in each hole unit 224a are respectively 6mm, 8mm and 10mm, and the holes of 6mm, 8mm and 10mm are sequentially arranged along the direction from the longitudinal center line 224c to the edge of the first gas homogenizing plate 224.

The second filter screen 212 is an oil separation filter screen, and is disposed above the first gas-homogenizing plate 224, and all around contacts with all around side walls of the gas outlet cavity 52. The second screen 212 is arc, rectangular or umbrella shaped.

The oil baffle plate 3, the second baffle plate 222, the two first baffle plates 221 and the third baffle plate 223 are all provided with oil leaking ports 31, so that the separated oil drops fall to the oil storage cavity 53.

With the above arrangement, the operation of the oil separator 10 of this embodiment is substantially as follows:

as shown in fig. 2, the refrigerant compressed by the compressor enters the inlet chamber 51 through the inlet pipe 4, collides with the oil baffle plate 3, and then flows to the outlet chamber 52 through the notch 141;

the gas entering the gas outlet cavity 52 firstly flows through the first filter screen 211, is filtered and diffused by the first filter screen 211, and the diffused refrigerant flows out along three directions, namely horizontal, vertical upward and oblique directions, wherein the refrigerant flowing vertically upward directly contacts with a first baffle plate 221 close to the gas inlet cavity 51 and is divided into three parts, the first part is subjected to the baffling effect of a non-opening area of the corresponding first baffle plate 221 to realize the collision separation effect, the second part flows to an opening area of the corresponding first baffle plate 221, collides with an inclined plate 221b when being subjected to the uniform gas action of square holes and is collided and separated again, and the third part accounts for most of the gas, flows upward through a ventilation flow channel 221g and is subjected to secondary baffling collision and separation with a third baffle plate 223; the refrigerant flowing out in the horizontal direction is equalized by the second gas equalizing plate 225, enters the space below the second baffle plate 222, flows toward the side far away from the gas inlet cavity 51, wherein a portion of the refrigerant flows to the rear portion of the second baffle 222, reaches the first baffle opening, and flows upwards in a baffled manner, the refrigerant collides with a first baffle plate 221 far away from the air inlet chamber 51 to be baffled, and the other part of the refrigerant passes through a second baffle plate 222 to be subjected to the gas equalizing action of the second baffle plate 222, and during the gas equalizing process, along the horizontal flow direction, the air flow is equalized by the hole bundles from large to small, the flow speed shows the trend from low to high, the trend of the flow speed change leads the pressure to be changed from high to low, since gas easily flows from a high-pressure area to a low-pressure area, the trend of the pressure change from high to low causes more gas flow to tend to the tail of the second baffle 222, and the gas flow is deflected by the first baffle 221 on the corresponding side; the obliquely flowing refrigerants and the refrigerants flowing out vertically upwards and horizontally are converged, and the flow process of the converged refrigerants is similar to that of the vertically upwards flowing air flow and the horizontally flowing air flow, and the details are not repeated;

all the refrigerant fluid which passes through the air equalizing and deflecting action of the first baffle plate 221 continuously flows towards the downstream, is deflected and collided with the third baffle plate 223, is subjected to oil-gas separation through the first air equalizing plate 224 and the second filter screen 212, and finally flows out of the outlet cavity 52 to the outside of the cylinder 1.

It can be seen that, when the oil separator 10 works, the refrigerant may be first filtered and diffused by the first filter screen 211, then subjected to collision separation and further flow equalization by the baffle plates and the gas equalization plate, and finally subjected to the last oil-gas separation by the second filter screen 212.

The separation device 2 of this embodiment can perform multi-stage separation on the oil-gas mixture based on the coupling effect of the first filter screen 211, the second gas homogenizing plate 225, the second baffle plate 222, the two first baffle plates 221, the third baffle plate 223, the first gas homogenizing plate 224 and the second filter screen 212, wherein the multi-stage separation of the first filter screen 211 and the second filter screen 212 is included, and the multi-stage separation of the second gas homogenizing plate 225, the second baffle plate 222, the two first baffle plates 221, the third baffle plates 223 and the first gas homogenizing plate 224 is included.

The first filter screen 211 can realize preliminary filtering of the oil-liquid mixed refrigerant, and can provide favorable diffusion conditions for subsequent baffling and flow equalization.

The second gas homogenizing plate 225, the second baffle plate 222, the two first baffle plates 221, the third baffle plate 223 and the first gas homogenizing plate 224 can perform multi-stage gas homogenizing and baffling on refrigerants which are separated and diffused through the first filter screen 211, and based on the difference design of hole patterns, hole diameters and hole opening areas, the flow velocity of fluid can be controlled, pressure difference flow guiding is performed, flow dead zones are reduced, gas homogenizing and baffling sufficiency are improved, and the collision separation effect is enhanced.

In conclusion, the oil separator 10 of the embodiment comprehensively utilizes the filter screen and the gas-equalizing plates and the baffle plates with different structural forms, can achieve the purpose of equalizing the refrigerant flow, simultaneously considers the baffle effect, increases the baffle collision separation efficiency, effectively solves the problems of insufficient gas-equalizing baffle and low separation efficiency in the related technology, fully utilizes the internal space, and effectively solves the problem that the built-in oil separator occupies a large space in the condenser shell.

Based on the oil separator 10 of the embodiment of the disclosure, the disclosure also provides a condenser and refrigeration equipment. The condenser includes a housing and the oil separator 10 according to the embodiment of the present disclosure, and the oil separator 10 is a built-in oil separator. The refrigeration appliance includes a compressor and the oil separator 10 of the disclosed embodiment, where the oil separator 10 may be an external oil separator or an internal oil separator. When the oil separator 10 is a built-in oil separator, the occupied space is reduced, the cost is saved, and the market competitiveness is enhanced.

The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. An oil separator (10), comprising:

the cylinder body (1) is internally provided with an air inlet cavity (51) and an air outlet cavity (52), and the air inlet cavity (51) and the air outlet cavity (52) are arranged side by side along a first direction (X) and are communicated with each other; and

the separation device (2) is arranged in the gas outlet cavity (52) and comprises at least one of a gas homogenizing deflection device (22) and a filtering device (21), the gas homogenizing deflection device (22) homogenizes and/or deflects gas, and the filtering device (21) comprises a filter screen.

2. The oil separator (10) of claim 1, wherein the gas homogenizing baffle (22) provides at least two stages of baffling of gas.

3. The oil separator (10) of claim 1, wherein the gas-homogenizing baffle (22) comprises a first baffle plate (221), the first baffle plate (221) deflecting gas.

4. The oil separator (10) of claim 3, wherein the first baffle plate (221) is provided with first vent holes (221a) such that the first baffle plate (221) also homogenizes gas.

5. The oil separator (10) of claim 4, wherein the first vent hole (221a) is a square hole.

6. The oil separator (10) of claim 4, wherein the first vent hole (221a) is provided with a swash plate (221b), and the swash plate (221b) is obliquely arranged to perform oil-gas separation by colliding with gas flowing out from the first vent hole (221 a).

7. The oil separator (10) of claim 6, wherein the swash plate (221b) is configured to be at least one of:

the inclination angle delta of the inclined plate (221b) is 45-55 degrees;

the length L of the sloping plate (221b) is 0.6 times the width W of the sloping plate (221 b);

the width W of the inclined plate (221b) is 6-8 times of the thickness of the inclined plate (221 b);

wherein the length L of the sloping plate (221b) is the dimension of the sloping plate (221b) along the sloping direction, and the width W of the sloping plate (221b) is the dimension of the sloping plate (221b) perpendicular to the sloping direction and the thickness direction.

8. The oil separator (10) of claim 4, wherein the first baffle plate (221) has a first portion (221c) and a second portion (221d), the first portion (221c) and the second portion (221d) being arranged side by side along the first direction (X), the first vent hole (221a) being provided on the first portion (221c), the first vent hole (221a) not being provided on the second portion (221 d).

9. The oil separator (10) of claim 4, wherein the open area of the first baffle plate (221) is 1/4 of the total area of the first baffle plate (221).

10. The oil separator (10) of claim 3, wherein the first baffle plate (221) comprises a first plate body (221e) and a second plate body (221f), the first plate body (221e) and the second plate body (221f) being connected at an angle.

11. The oil separator (10) of claim 10, wherein an angle a between the first plate (221e) and the second plate (221f) is 100-165 °.

12. -the oil separator (10) according to claim 3, characterized in that said vapor-homogenizing baffle (22) comprises two of said first baffle plates (221), said two first baffle plates (221) being arranged side by side and spaced from each other along said first direction (X) so that a ventilation flow channel (221g) is formed between said two first baffle plates (221).

13. The oil separator (10) of claim 12, wherein the gas-homogenizing baffle (22) comprises a second baffle plate (222), the second baffle plate (222) being arranged upstream of the two first baffle plates (221) at a distance from the two first baffle plates (221), the second baffle plate (222) shielding the gas flow channel (221g) and being provided with baffle openings (222c) with a side wall of the gas outlet chamber (52) in the first direction (X).

14. The oil separator (10) of claim 13, wherein the second baffle (222) is provided with second vent holes (222a) such that the second baffle (222) also equalizes gas.

15. The oil separator (10) of claim 14 wherein the second baffle plate (222) has second vent holes (222a) that are divided into at least two groups of holes (222b), the at least two groups of holes (222b) being arranged in series with decreasing hole size in a direction from the inlet chamber (51) to the outlet chamber (52).

16. The oil separator (10) of claim 15, wherein the aperture diameter of the at least two orifice sets (222b) decreases by a difference of 2mm in a direction from the inlet chamber (51) to the outlet chamber (52).

17. The oil separator (10) of claim 16, wherein in the at least two orifice groups (222b), the smallest orifice diameter is 6 mm.

18. The oil separator (10) of claim 14, wherein a total flow area S of all of the second vent holes (222a) in the second baffle (222) is_aGreater than or equal to the flow area S of the baffle opening (222c)₁。

19. The oil separator (10) of claim 12, wherein the vapor-homogenizing baffle (22) includes a third baffle plate (223), the third baffle plate (223) being disposed downstream of the two first baffle plates (221) at a distance from the two first baffle plates (221), the third baffle plate (223) shielding the gas flow channel (221g) and providing a gap from a sidewall of the gas outlet chamber (52) in the first direction (X).

20. The oil separator (10) of claim 19, wherein no vent is provided on the third baffle (223).

21. The oil separator (10) of claim 19, wherein the third baffle plate (223) shields the open area of the two first baffle plates (221).

22. The oil separator (10) of claim 19, wherein the gas-homogenizing baffle (22) comprises a first gas-homogenizing plate (224), the first gas-homogenizing plate (224) being disposed downstream of the third baffle plate (223).

23. The oil separator (10) of claim 22, wherein the first gas distribution plate (224) is provided with two hole units (224a), the two hole units (224a) are symmetrically distributed about a longitudinal center line (224c) of the first gas distribution plate (224) and each comprise at least two hole groups (222b), the hole groups (222b) comprise gas distribution holes (224b), at least two hole groups (222b) in the same hole unit (224a) are sequentially arranged along a direction from the longitudinal center line (224c) to an edge of the first gas distribution plate (224), and the hole diameter is gradually increased, and the longitudinal center line (224c) of the first gas distribution plate (224) is a center line of the first gas distribution plate (224) perpendicular to the first direction (X).

24. The oil separator (10) of claim 23, wherein the number of orifice groups (222b) in the orifice unit (224a) is less than or equal to 4.

25. The oil separator (10) of any one of claims 1 to 24, wherein the filtering means (21) comprises a first screen (211) and a second screen (212), the first screen (211) being arranged at an inlet of the outlet chamber (52) for filtering gas flowing from the inlet chamber (51) into the outlet chamber (52), the second screen (212) being arranged at an outlet of the outlet chamber (52) for filtering gas before flowing out from an outlet of the outlet chamber (52).

26. The oil separator (10) of claim 25, wherein the separation device (2) comprises the vapor-homogenizing baffle (22), the first screen (211) and the second screen (212) being arranged upstream and downstream of the vapor-homogenizing baffle (22), respectively.

27. The oil separator (10) of claim 26, wherein the first screen (211) is disposed at a baffle opening (222c) between the second baffle plate (222) of the gas-homogenizing baffle (22) and a side wall of the gas outlet chamber (52) on a side adjacent to the gas inlet chamber (51) to filter gas flowing from the inlet of the gas outlet chamber (52) to two baffle openings (222c) between the second baffle plate (222) and the side wall of the gas outlet chamber (52) in the first direction (X).

28. The oil separator (10) of claim 27, wherein the gas-homogenizing baffle (22) comprises a second gas-homogenizing plate (225), the second gas-homogenizing plate (225) being located on a side of the first screen (211) remote from the inlet chamber (51) and between the third baffle plate (223) and the first screen (211) such that gas flows first through the second gas-homogenizing plate (225) during flow from the first screen (211) to a baffle opening (222c) between the second baffle plate (222) and a side wall of the outlet chamber (52) remote from the inlet chamber (51).

29. The oil separator (10) of claim 26, wherein the second screen (212) is disposed downstream of a first gas homogenizing plate (224) of the gas homogenizing baffle (22) to filter gas flowing from the first gas homogenizing plate (224) to an outlet of the gas outlet chamber (52).

30. The oil separator (10) of claim 1, wherein the oil separator (10) comprises an oil baffle plate (3), and the oil baffle plate (3) is arranged below the air inlet cavity (51) and the air outlet cavity (52) and forms an oil storage cavity (53) with the bottom wall of the cylinder (1).

31. A condenser comprising a housing, characterized in that it further comprises an oil separator (10) according to any one of claims 1-30.

32. Refrigeration appliance comprising a compressor, characterized in that it further comprises an oil separator (10) according to any one of claims 1 to 30.